技术领域technical field
本实用新型涉及筛分机的技术领域，尤其是涉及一种防堵筛分机。The utility model relates to the technical field of screening machines, in particular to an anti-blocking screening machine.
背景技术Background technique
筛分机是利用散粒物料与筛面的相对运动，使部分颗粒透过筛孔，将颗粒状物料按颗粒大小分成不同级别的筛分机械设备。筛分机在建筑、化工、食品等行业都具有广泛的应用。The screening machine uses the relative movement of the granular material and the screen surface to make some particles pass through the screen holes, and divide the granular material into different grades of screening machinery according to the particle size. Screening machines are widely used in construction, chemical, food and other industries.
筛分机的筛网在筛分过程中容易被与筛网孔大小相当的颗粒状物料堵塞，造成筛分效率的降低，尤其是在筛分含有一定水分的物料时，被筛分的物料极易粘附在筛网上，筛分效果受到严重的影响。长期使用过程中还会对筛分机的筛网造成破坏，筛网被破坏后，部分粒径大于筛孔要求的物料也能进入产品中，不能完全达到筛分的目的，影响产品质量。The screen of the screening machine is easily blocked by granular materials with the same size as the screen mesh during the screening process, resulting in a reduction in the screening efficiency, especially when screening materials containing a certain amount of moisture, the screened materials are very easy to be screened. Adhesion to the screen, the screening effect is seriously affected. During long-term use, the screen of the screening machine will also be damaged. After the screen is destroyed, some materials with a particle size larger than the required screen hole can also enter the product, which cannot fully achieve the purpose of screening and affect the quality of the product.
现有的技术中通常使用刮板或者刮杆将堵在筛网上的大颗粒物料刮走达到防筛网堵塞的目的。如专利CNA通过在筛板上方设置含有倒三角锥凸起的刮板，电机驱动刮杆，可将堵塞筛板孔的砂石刮掉，保持筛板孔的畅通，提高筛分的效率。上述中的现有技术方案存在以下缺陷：1、在使用刮杆刮走堵塞物料时，筛板孔不能进料，需要停止筛分物料，不能实现连续生产；2、使用刮杆能刮走大部分的堵塞物料，但对于正好卡死在筛孔里的和筛孔大小接近的硬块使用刮杆的效果并不明显，而且在刮杆强制刮动的过程中卡在筛孔里的硬块容易破坏筛网，影响筛分效果，影响产品质量。In the prior art, a scraper or a scraper rod is usually used to scrape away the large particle materials blocked on the screen to prevent the blockage of the screen. For example, in the patent CNA, a scraper with inverted triangular cone protrusions is arranged above the sieve plate, and the motor drives the scraper rod, which can scrape off the sand and gravel that block the sieve plate hole, keep the sieve plate hole unblocked, and improve the screening efficiency. The above-mentioned prior art scheme has the following defects: 1. When using the scraper to scrape away the blocked material, the sieve plate hole cannot feed the material, and it is necessary to stop the screening of the material, which cannot realize continuous production; 2. The scraper can scrape away the large material. Part of the clogging material, but the effect of using the scraper bar is not obvious for the hard block that is stuck in the screen hole and the size of the screen hole is close, and the hard block stuck in the screen hole is easy to be damaged during the forced scraping of the scraper rod. The screen mesh affects the screening effect and affects the quality of the product.
实用新型内容Utility model content
本实用新型的目的在于提供一种防堵筛分机，具有连续生产、不损坏筛网和防堵孔的优点。The purpose of the utility model is to provide an anti-blocking screening machine, which has the advantages of continuous production, no damage to the screen mesh and anti-blocking holes.
本实用新型的上述技术目的是通过以下技术方案得以实现的：一种防堵筛分机，包括固定架，所述固定架上设置有筛网、用于振动筛网的振动机构和集料托盘，所述筛网为带有若干筛孔的筛网传送带，筛网传送带靠近固定架上方为上层筛网，筛网传送带靠近固定架下方为下层筛网，上层筛网上方安装用于振动上层筛网的振动机构，上层筛网下方安装用于收集物料的集料托盘，下层筛网的上方安装有用于敲打下层筛网的敲打机构，下层筛网相对应的位置安装有驱动筛网传送带传动的驱动机构。The above-mentioned technical purpose of the present utility model is achieved through the following technical solutions: an anti-blocking screening machine, comprising a fixing frame, the fixing frame is provided with a screen, a vibration mechanism for vibrating the screen and a collecting tray, The screen is a screen conveyor belt with a number of screen holes. The screen conveyor belt is close to the upper screen of the fixed frame. The screen conveyor belt is close to the bottom of the fixed frame. The lower screen is installed above the upper screen to vibrate the upper screen. The vibrating mechanism is installed below the upper screen mesh for collecting materials, and above the lower screen mesh is installed with a beating mechanism for beating the lower screen mesh mechanism.
通过上述技术方案，筛网为带有若干筛孔的筛网传送带，筛网使用后，通过驱动机构转动筛网，未被堵孔的筛网从下层转动至上层，上层可以继续筛分物料。筛孔被堵的筛网从上层转动至下层，被堵的筛网从上层转动至下层后筛孔方向调转，原来卡在筛网上方的卡孔物料调转至筛网下方，用敲打机构敲打被堵筛网，堵在筛孔的卡孔物料抖动落下。依次循环转动和敲打筛网，实现了连续生产、不损坏筛网和防堵孔的目的。Through the above technical solution, the screen is a screen conveyor belt with several screen holes. After the screen is used, the screen is rotated by the driving mechanism, and the screen without blocked holes is rotated from the lower layer to the upper layer, and the upper layer can continue to screen materials. The screen with blocked screen holes is rotated from the upper layer to the lower layer, and the blocked screen is rotated from the upper layer to the lower layer, and the direction of the screen holes is reversed. Block the screen, and the material stuck in the hole of the screen shakes and falls. The screen is rotated and beaten in sequence, and the purpose of continuous production, no damage to the screen and anti-blocking holes is realized.
优选的，所述的振动机构包括转动设置在固定架上的第一凸轮和用于驱动第一凸轮旋转的第一驱动电机，第一凸轮到筛网的距离使第一凸轮旋转时第一凸轮的短边不能触碰上层筛网，而第一凸轮的长边可以击打上层筛网，第一凸轮旋转时可间隙撞击上层筛网。Preferably, the vibration mechanism includes a first cam rotatably arranged on the fixed frame and a first drive motor for driving the first cam to rotate, and the distance from the first cam to the screen makes the first cam rotate when the first cam rotates. The short side of the cam cannot touch the upper screen, while the long side of the first cam can hit the upper screen, and the first cam can hit the upper screen with a gap when it rotates.
通过上述技术方案，设置含有凸轮的振动机构，第一凸轮旋转时可间隙性地撞击筛网传送带，带动筛网上的物料振动，颗粒较小的物料通过筛孔，颗粒较大的物料不能通过筛孔，实现筛分物料的目的。Through the above technical solution, a vibrating mechanism including a cam is set up. When the first cam rotates, it can intermittently hit the screen conveyor belt to drive the materials on the screen to vibrate. The materials with smaller particles pass through the screen holes, and the materials with larger particles cannot pass through the screen. Holes to achieve the purpose of screening materials.
优选的，所述的敲打机构包括转动设置在固定架上的第二凸轮和用于驱动第二凸轮旋转的第二驱动电机，第二凸轮到筛网的距离使第二凸轮转动时第二凸轮的短边不能触碰下层筛网，而第二凸轮的长边可以击打下层筛网，所述第二凸轮旋转时可间隙撞击下层筛网。Preferably, the beating mechanism includes a second cam rotatably arranged on the fixed frame and a second driving motor for driving the second cam to rotate, and the distance from the second cam to the screen makes the second cam rotate when the second cam rotates The short side of the cam cannot touch the lower screen, while the long side of the second cam can hit the lower screen, and the second cam can hit the lower screen with a gap when it rotates.
通过上述技术方案，安装用于敲打下层筛网的敲打机构，筛网传送带转动后，卡孔物料处于下层筛网的下方，敲打机构的凸轮旋转时可间隙性地撞击筛网传送带，带动下层筛网抖动，带动卡在筛网上的卡孔物料脱离筛网，实现防堵孔的目的。Through the above technical solution, a beating mechanism for beating the lower screen mesh is installed. After the screen conveyor belt rotates, the stuck material is located under the lower screen mesh. When the cam of the beating mechanism rotates, it can intermittently hit the screen mesh conveyor belt to drive the lower screen mesh. The net vibrates to drive the stuck hole material stuck on the screen to escape from the screen to achieve the purpose of preventing hole blocking.
优选的，所述固定架上设置有传动辊，传动辊让筛网传送带绷直；所述驱动机构包括驱动传动辊转动的第三驱动电机。Preferably, the fixed frame is provided with a drive roller, and the drive roller straightens the screen conveyor belt; the drive mechanism includes a third drive motor that drives the drive roller to rotate.
通过上述技术方案，第三驱动电机带动传动辊转动，带动筛网传送带转动，被堵上层筛网转动至下层，原来卡在筛网上方的卡孔物料调转至筛网下方，方便实现敲落卡孔物料的目的，方便实现防堵孔的目的。Through the above technical solution, the third drive motor drives the drive roller to rotate, drives the screen conveyor belt to rotate, the blocked upper screen rotates to the lower layer, and the stuck hole material originally stuck above the screen is transferred to the bottom of the screen, which is convenient to knock down the screen. The purpose of hole material is convenient to achieve the purpose of preventing hole blocking.
优选的，所述固定架包括背板和侧面板，侧面板包括第一侧面板和第二侧面板；所述的上层筛网沿第一侧面板到第二侧面板的方向斜向下安装，所述的上层筛网两侧沿第一侧面板到第二侧面板的方向设置有筛网挡板。Preferably, the fixing frame includes a back panel and a side panel, and the side panel includes a first side panel and a second side panel; the upper screen is installed obliquely downward along the direction from the first side panel to the second side panel, Screen baffles are provided on both sides of the upper screen along the direction from the first side panel to the second side panel.
通过上述技术方案：筛网倾斜放置，物料在上层筛网上由于重力的作用可以沿上层筛网滚动，可以提高物料筛分效率。上层筛网两侧沿第一侧面板到第二侧面板的方向设置有筛网挡板，避免筛网传送带转动的过程中物料抛洒，有利于操作过程安全卫生。Through the above technical scheme: the screen is placed obliquely, and the material on the upper screen can roll along the upper screen due to the action of gravity, which can improve the material screening efficiency. Screen baffles are arranged on both sides of the upper screen along the direction from the first side panel to the second side panel, which prevents material from being thrown during the rotation of the screen conveyor belt, which is beneficial to the safety and hygiene of the operation process.
优选的，所述的集料托盘两侧沿第一侧面板到第二侧面板的方向设置有集料挡板，所述的集料托盘沿第一侧面板到第二侧面板的方向斜向下安装，集料托盘靠近第二侧面板的一端设置有第一出料通道，第一出料通道沿远离背板端到靠近背板端的方向斜向下安装，背板和第一出料通道连接处设置第二出料口。Preferably, both sides of the collection tray are provided with collection baffles along the direction from the first side panel to the second side panel, and the collection tray is inclined along the direction from the first side panel to the second side panel Bottom installation, the end of the collecting tray close to the second side panel is provided with a first discharge channel, the first discharge channel is installed obliquely downward along the direction away from the back panel end to the back panel end, the back panel and the first discharge channel A second outlet is provided at the connection.
通过上述技术方案，集料托盘沿第一侧面板到第二侧面板的方向斜向下安装，通孔筛孔的物料在集料托盘上靠重力滑动至第一出料通道，在重力作用下滑动至第二出料口，便于物料的收集，有利于提高操作过程的工作效率。Through the above technical solution, the collection tray is installed obliquely downward along the direction from the first side panel to the second side panel, and the material with the through-hole sieve hole slides on the collection tray to the first discharge channel by gravity, under the action of gravity Sliding to the second discharge port facilitates the collection of materials and improves the working efficiency of the operation process.
优选的，所述的下层筛网下方安装有残料托盘，残料托盘两侧沿第一侧面板到第二侧面板的方向设置有残料挡板，所述的残料托盘沿第一侧面板到第二侧面板的方向斜向下安装，残料托盘的靠近第二侧面板的一端设置有第二出料通道，第二出料通道沿远离背板端到靠近背板端的方向斜向下安装，背板和第二出料通道的连接处设置第二出料口。Preferably, a residual material tray is installed under the lower screen, and residual material baffles are arranged on both sides of the residual material tray along the direction from the first side panel to the second side panel, and the residual material tray is along the first side. The direction from the panel to the second side panel is installed obliquely downward. The end of the residual material tray close to the second side panel is provided with a second discharge channel, and the second discharge channel is inclined along the direction away from the back panel end to the back panel end. A second discharge port is set at the connection between the back plate and the second discharge channel.
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通过上述技术方案，设置残料托盘，可以收集残料，避免抛洒残料，保证操作过程在安全卫生情况下进行。Through the above technical solution, the residual material tray is provided to collect the residual material, avoid throwing the residual material, and ensure that the operation process is carried out in a safe and hygienic condition.
综上所述，本实用新型对比于现有技术的有益效果为：To sum up, the beneficial effects of the present invention compared with the prior art are:
一、通过将筛网设置为带有若干筛孔的筛网传送带，筛网使用后，通过驱动机构转动筛网，被堵孔的筛网从上层转动至下层，未被堵孔的筛网从下层转动至上层，上层筛网可以继续筛分物料，实现连续生产的目的；1. By setting the screen as a screen conveyor belt with several screen holes, after the screen is used, the screen is rotated by the driving mechanism, the screen with blocked holes is rotated from the upper layer to the lower layer, and the screen without blocked holes is rotated from the upper layer to the lower layer. The lower layer rotates to the upper layer, and the upper layer screen can continue to screen materials to achieve the purpose of continuous production;
二、通过转动机构转动筛网传送带，筛孔被堵的筛网从上层转动至下层，被堵的筛网从上层转动至下层后筛孔方向调转，原来卡在筛网上方的卡孔物料调转至筛网下方，用敲打机构敲打被堵筛网，堵在筛孔的卡孔物料因为震动而落下，实现了不损坏筛网和防堵孔的目的；2. Rotate the screen conveyor belt through the rotating mechanism, the screen with blocked screen holes is rotated from the upper layer to the lower layer, the blocked screen is rotated from the upper layer to the lower layer and the direction of the screen holes is reversed. To the bottom of the screen, tap the blocked screen with a beating mechanism, and the stuck material blocked in the screen hole will fall down due to vibration, so as to achieve the purpose of not damaging the screen and preventing blocking holes;
三、上层筛网倾斜安装，物料在筛网上由于重力的作用可以滚动，可以提高物料筛分效率；3. The upper screen is installed obliquely, and the material can roll on the screen due to the action of gravity, which can improve the material screening efficiency;
四、集料托盘和残料托盘倾斜安装，倾斜安装出料通道，有利于物料的收集，避免物料抛洒，保证操作过程在安全卫生情况下进行。4. The collection tray and the residual material tray are installed obliquely, and the discharge channel is installed obliquely, which is conducive to the collection of materials, avoids material spillage, and ensures that the operation process is carried out under safe and hygienic conditions.
附图说明Description of drawings
为了更清楚地说明本实用新型实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本实用新型的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are just some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative effort.
图1为本实施例前视结构示意图；Fig. 1 is the front view structure schematic diagram of this embodiment;
图2为本实施例后视结构示意图；FIG. 2 is a schematic diagram of the rear view structure of this embodiment;
图3为隐藏背板和侧面板的后视结构示意图。FIG. 3 is a schematic diagram of a rear view structure of a hidden back panel and side panels.
附图标记： 1、固定架；2、筛网；3、振动机构；4、集料托盘；5、筛孔；6、筛网传送带；7、上层筛网；8、下层筛网；9、敲打机构； 10、驱动机构； 11、第一凸轮；12、第一驱动电机；13、第二凸轮；14、第二驱动电机； 15、传动辊;16、第三驱动电机；17、进料漏斗; 18、背板；19、第一侧面板；20、第二侧面板；21、筛网挡板；22、集料挡板； 23、第一出料通道; 24、第一出料口；25、残料托盘；26、残料挡板； 27、第二出料通道; 28、第二出料口；29、顶板。Reference numerals: 1. Fixed frame; 2. Screen; 3. Vibration mechanism; 4. Collection tray; 5. Screen hole; 6. Screen conveyor; 7. Upper screen; 8. Lower screen; 9. Beating mechanism; 10. Driving mechanism; 11. First cam; 12. First driving motor; 13. Second cam; 14. Second driving motor; 15. Transmission roller; 16. Third driving motor; 17. Feeding Funnel; 18, back plate; 19, first side panel; 20, second side panel; 21, screen baffle; 22, aggregate baffle; 23, first discharge channel; 24, first discharge port ; 25, residual material tray; 26, residual material baffle; 27, the second discharge channel; 28, the second discharge port; 29, the top plate.
具体实施方式Detailed ways
以下结合附图对本实用新型作进一步详细说明。The present utility model will be described in further detail below in conjunction with the accompanying drawings.
本具体实施方式的实施例均为本发明的较佳实施例，并非依此限制本发明的保护范围，故：凡依本发明的结构、形状、原理所做的等效变化，均应涵盖于本发明的保护范围之内。The embodiments of this specific embodiment are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore: all equivalent changes made according to the structure, shape and principle of the present invention should be covered in within the protection scope of the present invention.
一种防堵筛分机，如图1所示，包括固定架1，固定架1上设置有筛网2、用于振动筛网2的振动机构3和集料托盘4，筛网2为带有若干筛孔5的筛网传送带6，筛网传送带靠近固定架1上方为上层筛网7，筛网传送带6靠近固定架1下方为下层筛网8，上层筛网7上方安装用于振动上层筛网7的振动机构3，上层筛网7下方安装用于收集物料的集料托盘4，下层筛网8的上方安装有用于敲打下层筛网8的敲打机构9，下层筛网8相对应的位置安装有驱动筛网传送带6传动的驱动机构10。An anti-blocking screening machine, as shown in Figure 1, includes a fixed frame 1, and the fixed frame 1 is provided with a screen 2, a vibration mechanism 3 for vibrating the screen 2, and a collection tray 4, and the screen 2 is provided with The screen conveyor belt 6 of several screen holes 5, the screen conveyor belt is close to the upper screen 7 above the fixed frame 1, the screen conveyor belt 6 is close to the bottom screen 8 below the fixed frame 1, and the upper screen 7 is installed above the upper screen for vibrating the upper screen The vibration mechanism 3 of the screen 7, the collecting tray 4 for collecting materials is installed under the upper screen 7, and the beating mechanism 9 for beating the lower screen 8 is installed above the lower screen 8, and the corresponding position of the lower screen 8 A drive mechanism 10 for driving the screen conveyor belt 6 is installed.
如图1和图3所示，固定架1上设置有传动辊15，传动辊15让筛网传送带6绷直。驱动机构10包括驱动传动辊15转动的第三驱动电机16。振动机构3包括转动设置在固定架1上的第一凸轮11和用于驱动第一凸轮11旋转的第一驱动电机12，第一凸轮11到上层筛网7的距离使第一凸轮11旋转时第一凸轮11的短边不能触碰上层筛网7，而第一凸轮11的长边可以击打上层筛网7，第一凸轮11旋转时可间隙撞击上层筛网7。敲打机构9包括转动设置在固定架1上的第二凸轮13和用于驱动第二凸轮13旋转的第二驱动电机14，第二凸轮13到下层筛网8的距离使第二凸轮13旋转时第二凸轮13的短边不能触碰下层筛网，而第二凸轮13的长边可以击打下层筛网8，第二凸轮13旋转时可间隙撞击下层筛网8。固定架1包括背板18和侧面板，侧面板包括第一侧面板19和第二侧面板20；上层筛网7沿第一侧面板19到第二侧面板20的方向斜向下安装，上层筛网7两侧沿第一侧面板19到第二侧面板20的方向设置有筛网挡板21。固定架1还包括顶板29，顶板29上设置进料漏斗17。As shown in FIG. 1 and FIG. 3 , the fixed frame 1 is provided with a transmission roller 15 , and the transmission roller 15 makes the screen conveyor belt 6 straight. The drive mechanism 10 includes a third drive motor 16 that drives the drive roller 15 to rotate. The vibration mechanism 3 includes a first cam 11 rotatably arranged on the fixed frame 1 and a first drive motor 12 for driving the first cam 11 to rotate. The distance from the first cam 11 to the upper screen 7 makes the first cam 11 rotate. The short side of the first cam 11 cannot touch the upper screen 7, while the long side of the first cam 11 can hit the upper screen 7, and the first cam 11 can hit the upper screen 7 with a gap when it rotates. The beating mechanism 9 includes a second cam 13 rotatably arranged on the fixed frame 1 and a second driving motor 14 for driving the second cam 13 to rotate. The distance between the second cam 13 and the lower screen 8 makes the second cam 13 rotate. The short side of the second cam 13 cannot touch the lower screen, while the long side of the second cam 13 can hit the lower screen 8, and the second cam 13 can hit the lower screen 8 with a gap when it rotates. The fixing frame 1 includes a back panel 18 and a side panel, and the side panel includes a first side panel 19 and a second side panel 20; the upper screen 7 is installed obliquely downward along the direction from the first side panel 19 to the second side panel 20. Screen baffles 21 are provided on both sides of the screen 7 along the direction from the first side panel 19 to the second side panel 20 . The fixed frame 1 further includes a top plate 29 on which a feeding funnel 17 is arranged.
如图1、图2和图3所示,集料托盘4背离背板18一端到靠近背板18一端的距离大于上层筛网7背离背板18一端到靠近背板18一端的距离，集料托盘4靠近第一侧面板19一端到靠近第二侧面板20一端的距离大于上层筛网7靠近第一侧面板19一端到靠近第二侧面板20一端的距离。集料托盘4两侧沿第一侧面板19到第二侧面板20的方向设置有集料挡板22，集料托盘4沿第一侧面板19到第二侧面板20的方向斜向下安装，集料托盘4靠近第二侧面板20的一端设置有第一出料通道23，第一出料通道23沿远离背板18端到靠近背板18端的方向斜向下安装，背板18和第一出料通道23连接处设置第一出料口24，第一出料通道23通过第一出料口24穿过背板18。下层筛网8下方安装有残料托盘25，残料托盘25背离背板18一端到靠近背板18一端的距离大于下层筛网8背离背板18一端到靠近背板18一端的距离，残料托盘25靠近第一侧面板19一端到靠近第二侧面板20一端的距离大于下层筛网8靠近第一侧面板19一端到靠近第二侧面板20一端的距离。残料托盘25两侧沿第一侧面板19到第二侧面板20的方向设置有残料挡板26，所述的残料托盘25沿第一侧面板19到第二侧面板20的方向斜向下安装，残料托盘25的靠近第二侧面板20的一端设置有第二出料通道27，第二出料通道27沿远离背板18端到靠近背板18端的方向斜向下安装，背板18和第二出料通道27的连接处设置第二出料口28，第二出料通道27通过第二出料口28穿过背板18。As shown in Figure 1, Figure 2 and Figure 3, the distance from the end of the collecting tray 4 away from the back plate 18 to the end close to the back plate 18 is greater than the distance from the end of the upper screen 7 away from the back plate 18 to the end close to the back plate 18. The distance from the end close to the first side panel 19 to the end close to the second side panel 20 of the tray 4 is greater than the distance from the end close to the first side panel 19 to the end close to the second side panel 20 of the upper screen 7 . Collection baffles 22 are provided on both sides of the collection tray 4 along the direction from the first side panel 19 to the second side panel 20 , and the collection tray 4 is installed obliquely downward along the direction from the first side panel 19 to the second side panel 20 . , the end of the collection tray 4 close to the second side panel 20 is provided with a first discharge channel 23, and the first discharge channel 23 is installed obliquely downward along the direction away from the end of the back panel 18 to the end close to the back panel 18. The back panel 18 and A first discharge port 24 is provided at the connection of the first discharge channel 23 , and the first discharge channel 23 passes through the back plate 18 through the first discharge port 24 . A residual material tray 25 is installed below the lower screen 8, and the distance from the end of the residual tray 25 away from the back plate 18 to the end close to the back plate 18 is greater than the distance from the end of the lower screen 8 away from the back plate 18 to the end close to the back plate 18. The distance from the end of the tray 25 close to the first side panel 19 to the end close to the second side panel 20 is greater than the distance from the end of the lower screen 8 close to the first side panel 19 to the end close to the second side panel 20 . Residual material baffles 26 are provided on both sides of the residual material tray 25 along the direction from the first side panel 19 to the second side panel 20 , and the residual material tray 25 is inclined along the direction from the first side panel 19 to the second side panel 20 . For downward installation, the end of the residual material tray 25 close to the second side panel 20 is provided with a second discharge channel 27, and the second discharge channel 27 is installed obliquely downward along the direction away from the end of the back panel 18 to the end close to the back panel 18, A second discharge port 28 is provided at the connection between the back plate 18 and the second discharge channel 27 , and the second discharge channel 27 passes through the back plate 18 through the second discharge port 28 .
具体工作过程：粉体物料从进料漏斗17进入筛分机落到上层筛网7上，粉体物料在重力的作用下沿着上层筛网7滑动，启动第一驱动电机12，第一驱动电机12驱动第一凸轮11旋转，第一凸轮11间隙性撞击上层筛网7，粒径合适的物料通过上层筛网7落入集料托盘4内，粒径合适的物料在重力作用下沿着集料托盘4滑动至第一出料通道23内，再沿着第一出料通道23到达第一出料口24进行收集。颗粒较大的物料不能通过上层筛网7，在重力的作用下沿着上层筛网7滑动，最后落入残料托盘25的第二出料通道27内，再沿着第二出料通道27到达第二出料口28进行收集。The specific working process: the powder material enters the screening machine from the feeding hopper 17 and falls on the upper screen 7, the powder material slides along the upper screen 7 under the action of gravity, and the first drive motor 12 is activated. 12 Drive the first cam 11 to rotate, the first cam 11 intermittently hits the upper screen 7, the material with suitable particle size falls into the collecting tray 4 through the upper screen 7, and the material with suitable particle size moves along the collecting tray 4 under the action of gravity. The material tray 4 slides into the first discharge channel 23 , and then reaches the first discharge port 24 along the first discharge channel 23 for collection. The materials with larger particles cannot pass through the upper screen 7, and slide along the upper screen 7 under the action of gravity, and finally fall into the second discharge channel 27 of the residual material tray 25, and then follow the second discharge channel 27. Reach the second outlet 28 for collection.
当上层筛网7上有部分筛孔5被物料堵塞后，启动第三驱动电机16，第三驱动电机16驱动传动辊15转动，带动筛网传送带6转动，未被堵孔的筛网2从下层转动至上层，被堵孔的筛网2从上层转动至下层，上层筛网7可以继续筛分物料。被堵孔的筛网2从上层转动至下层，被堵孔的筛网2从上层转动至下层后筛孔5方向调转，原来卡在筛网2上方的卡孔物料调转至筛网2下方，启动第二驱动电机14，第二驱动电机14带动第二凸轮13旋转，第二凸轮间歇敲打被堵孔的下层筛网8，堵在筛孔5的卡孔物料因为震动脱离下层筛网8进入残料托盘25，在重力的作用下沿着残料托盘25滑动至第二出料通道27，在重力的作用下沿着第二出料通道27滑动至第二出料口28，工作人员通过第二出料口28收集卡孔物料。通过上述操作过程实现了防堵孔的目的。When some of the screen holes 5 on the upper screen 7 are blocked by the material, the third drive motor 16 is activated, the third drive motor 16 drives the drive roller 15 to rotate, and drives the screen conveyor belt 6 to rotate. The lower layer is rotated to the upper layer, the screen mesh 2 with blocked holes is rotated from the upper layer to the lower layer, and the upper layer screen mesh 7 can continue to screen materials. The screen 2 with blocked holes is rotated from the upper layer to the lower layer, the screen 2 with blocked holes is rotated from the upper layer to the lower layer, and the direction of the screen hole 5 is reversed. The second drive motor 14 is activated, the second drive motor 14 drives the second cam 13 to rotate, the second cam intermittently knocks the blocked lower screen 8, and the stuck material blocked in the screen 5 escapes from the lower screen 8 due to vibration and enters The residual material tray 25 slides along the residual material tray 25 to the second discharge channel 27 under the action of gravity, and slides along the second discharge channel 27 to the second discharge port 28 under the action of gravity. The second discharge port 28 collects the stuck material. Through the above operation process, the purpose of anti-clogging holes is achieved.
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