Anti-clogging capsule screening device

Abstract

The utility model provides a kind of anti-clogging capsule screening device.It relates to the technical field of pharmaceutical production equipment.The anti-clogging capsule screening device includes base and screening box being set above base, screening frame is equipped in the screening box, the two sides of the screening frame are respectively with the two side inner walls of the screening box contact, the top of the screening frame is equipped with multiple screen holes, vibration screening assembly is equipped on the screening box, the vibration screening assembly includes two link plates, two the link plate is respectively fixedly installed on the two side outer walls of the screening frame, and two the link plate is extended to the outside of the screening box and is respectively with the two side sliding connection of screening box, fixed crosspiece is fixedly installed on the two side outer walls of the screening box, and the same inverted U-shaped frame rod is slidably installed on two the fixed crosspiece.The utility model can complete dredging quickly in shorter time, improve screening efficiency.

Description

Technical Field

[0001] This utility model relates to the field of pharmaceutical production equipment technology, specifically to an anti-clogging capsule screening device. Background Technology

[0002] Currently, in the capsule production process, it is usually necessary to screen the capsules to remove unqualified capsules (such as damaged or missized capsules). Existing capsule screening devices typically use horizontal or inclined screening screens, both of which have good screening effects.

[0003] However, during the screening process, capsules can easily get stuck in the mesh, causing blockages and reducing screening efficiency. In addition, blockages require the machine to be stopped and a considerable amount of time to clean, which further reduces screening efficiency.

[0004] Therefore, it is necessary to provide a new anti-clogging capsule screening device to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this invention is to provide an anti-clogging capsule screening device that can quickly clear blockages in a short time and improve screening efficiency.

[0006] To solve the above technical problems, the anti-clogging capsule screening device provided by this utility model includes: a base and a screening box disposed above the base. A screening frame is provided inside the screening box. The two sides of the screening frame respectively contact the inner walls of the two sides of the screening box. Multiple screening holes are opened at the top of the screening frame. A vibrating screening assembly is provided on the screening box. The vibrating screening assembly includes two connecting plates. The two connecting plates are respectively fixedly installed on the outer walls of the two sides of the screening frame, and both connecting plates extend outside the screening box and are slidably connected to the two sides of the screening box. Fixed crossbars are fixedly installed on the outer walls of both sides of the screening box. The same inverted U-shaped frame rod is slidably installed on the two fixed crossbars. The bottom ends of the inverted U-shaped frame rod are respectively fixedly connected to the two connecting plates. Two return springs are sleeved on the inverted U-shaped frame rod. The top end of the return spring is fixedly connected to the fixed crossbar, and its bottom end is fixedly connected to the connecting plate. A drive motor is fixedly installed on the top of the screening box. A cam is fixedly sleeved on the output shaft of the drive motor. A top contact flap is fixedly installed on the inverted U-shaped frame rod, and the top contact flap is adapted to the cam. An outer housing is fixedly installed on one side of the outer wall of the screening box. A shuttle opening is opened on the side of the screening box that is fixed to the outer housing. A rodless cylinder is provided inside the outer housing. A side connecting piece is fixedly installed on the slider of the rodless cylinder. Multiple folding rods are fixedly installed on one side of the side connecting piece. A crossbar is fixedly installed on the top of each of the multiple folding rods. Multiple unblocking heads are fixedly installed on the top of each of the multiple crossbars. The multiple unblocking heads are adapted to the multiple screen holes respectively. The multiple folding rods all pass through the shuttle opening and do not contact its inner wall.

[0007] Preferably, a fixed frame is fixedly installed on the top of the outer housing, a movable screw is rotatably installed inside the fixed frame, a movable block is threaded onto the movable screw, the bottom of the movable block extends into the outer housing and is fixedly connected to the rodless cylinder, the movable block is slidably connected to the top of the outer housing, and a servo motor is fixedly installed on the outer wall of the fixed frame away from the screening box, the output shaft of the servo motor is fixedly connected to one end of the movable screw.

[0008] Preferably, the bottom inner wall of the outer casing is provided as an inclined surface, and the inclined surface slopes from low to high from the position close to the screening box to the position away from the screening box.

[0009] Preferably, a discharge pipe is fixedly installed at the bottom of the screening box, a material valve is provided on the discharge pipe, a discharge port is opened on one side of the screening box, the bottom end face of the discharge port is flush with the top end face of the screening frame, a blocking plate is provided inside the discharge port, a dual-shaft cylinder is fixedly installed on one side of the outer wall of the screening box, the output shaft of the dual-shaft cylinder is fixedly connected to the blocking plate, and a pouring hopper is fixedly installed on the side of the screening box away from the blocking plate.

[0010] Preferably, the top of the base is hinged with two hinge legs, the top of each of the two hinge legs is fixedly connected to the bottom of the screening box, and the top of the base is hinged with a hydraulic cylinder, the output shaft of the hydraulic cylinder being hinged to the bottom of the screening box.

[0011] Preferably, a limiting slide is provided at the top of the outer housing, and the moving block passes through the limiting slide and contacts the inner wall of the limiting slide.

[0012] Preferably, screening openings are provided on both sides of the screening box, and two connecting plates pass through the two screening openings respectively, and the two connecting plates contact the inner walls of the two screening openings respectively. The two screening openings are blocked on both sides of the screening frame respectively.

[0013] Compared with related technologies, the anti-clogging capsule screening device provided by this utility model has the following beneficial effects: This invention features a clearing head that corresponds to the upper and lower screen holes. A rodless cylinder lifts the head upwards, inserting it into the corresponding screen hole for clearing. To prevent capsules from becoming too stuck, the clearing head lifts the screening frame along with it, simultaneously activating the drive motor. The rapidly descending screening frame impacts the clearing head, effectively dislodging the blocked capsules. The clearing effect is excellent, with minimal downtime and few operating steps, allowing for quick resumption of capsule screening and improving screening efficiency. Attached Figure Description

[0014] Figure 1 A schematic diagram of a preferred embodiment of the anti-clogging capsule screening device provided by this utility model; Figure 2 for Figure 1 The enlarged schematic diagram of part A shown below; Figure 3 This is a partial side sectional view of the present invention; Figure 4 This is a side view schematic diagram of the connection structure of the side connecting piece and multiple folding rods in this utility model.

[0015] The following are the labels in the diagram: 1. Base; 2. Screening box; 3. Screening frame; 4. Screen hole; 5. Connecting plate; 6. Fixed crossbar; 7. Inverted U-shaped support rod; 8. Return spring; 9. Top contact folding plate; 10. Drive motor; 11. Cam; 12. Outer housing; 13. Rodless cylinder; 14. Side connecting plate; 15. Folding rod; 16. Horizontal connecting bar; 17. Unblocking head; 18. Fixed frame; 19. Moving screw; 20. Moving block; 21. Hinge leg; 22. Hydraulic cylinder; 23. Discharge port; 24. Blocking plate; 25. Dual-shaft cylinder. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Please refer to the following: Figures 1-4 ,in, Figure 1 A schematic diagram of a preferred embodiment of the anti-clogging capsule screening device provided by this utility model; Figure 2 for Figure 1 The enlarged schematic diagram of part A shown below; Figure 3 This is a partial side sectional view of the present invention; Figure 4This is a side view schematic diagram of the connection structure of the side connecting piece and multiple folding rods in this utility model. The anti-clogging capsule screening device includes: a base 1 and a screening box 2 disposed above the base 1, and a screening frame 3 is provided inside the screening box 2. The screening frame 3 is inverted "U" shape, and its two sides are respectively in contact with the inner walls of the two sides of the screening box 2. Multiple screen holes 4 are opened at the top of the screening frame 3, and a vibrating screening assembly is provided on the screening box 2. The vibrating screening assembly includes two connecting plates 5, which are respectively fixedly installed on the outer walls of the two sides of the screening frame 3, and both connecting plates 5 extend outside the screening box 2 and are respectively connected to the inner walls of the screening box 2. The screening box 2 is slidably connected on both sides. Fixed crossbars 6 are fixedly installed on the outer walls of both sides. A single inverted U-shaped support rod 7 is slidably installed on each of the two fixed crossbars 6. The bottom ends of the inverted U-shaped support rod 7 are fixedly connected to two connecting plates 5, respectively. Two return springs 8 are sleeved on the inverted U-shaped support rod 7. The top end of each return spring 8 is fixedly connected to the fixed crossbar 6, and its bottom end is fixedly connected to the connecting plate 5. A drive motor 10 is fixedly installed on the top of the screening box 2. A cam 11 is fixedly sleeved on its output shaft. A top contact flap 9 is fixedly installed on the inverted U-shaped support rod 7. The top contact flap 9 is adapted to the cam 11. Through the operation of the drive motor 10, the intermittent contact between the cam 11 and the top contact flap 9, and the pull-back action of the return spring 8, causes the screening frame 3 to form a reciprocating up-and-down vibrating screening pattern, thus achieving a good screening effect. An outer housing 12 is fixedly installed on one side of the outer wall of the screening box 2. A shuttle opening is provided on the side where the screening box 2 is fixed to the outer housing 12. A rodless cylinder 13 is installed inside the outer housing 12, and a side connecting piece 14 is fixedly installed on its own slider. Multiple folding rods 15 are fixedly installed on one side of the connecting piece 14. A horizontal connecting strip 16 is fixedly installed at the top of each of the multiple folding rods 15. Multiple unblocking heads 17 are fixedly installed at the top of each of the multiple horizontal connecting strips 16. The multiple unblocking heads 17 are adapted to multiple screen holes 4 respectively. The multiple folding rods 15 pass through the shuttle opening and do not contact its inner wall. During unblocking, the multiple horizontal connecting strips 16 are located in the screening box 2, so that the unblocking heads 17 are vertically aligned with the screen holes 4. Then, the rodless cylinder 13 is used to lift the unblocking heads 17, so that they can be inserted into the screen holes 4 for unblocking.

[0018] In the above-described manner, in order to move the horizontal connecting strip 16 horizontally and allow it to retract into the outer housing 12 when not in use, a fixed frame 18 is fixedly installed on the top of the outer housing 12, and a moving screw 19 is rotatably installed inside the fixed frame 18. A moving block 20 is threaded onto the moving screw 19. The bottom of the moving block 20 extends into the outer housing 12 and is fixedly connected to the rodless cylinder 13. The moving block 20 is slidably connected to the top of the outer housing 12. This slidable connection is achieved by opening a limiting slide rail on the top of the outer housing 12, through which the moving block 20 passes and contacts the inner wall of the limiting slide rail. A servo motor is fixedly installed on the outer wall of the fixed frame 18 on the side away from the screening box 2, and its output shaft is fixedly connected to one end of the moving screw 19. Furthermore, the bottom inner wall of the outer housing 12 is an inclined surface, and the inclination direction of this inclined surface gradually increases from the position close to the screening box 2 towards the direction away from the screening box 2.

[0019] In this method, to allow the sieved capsules to be discharged separately, two hinged legs 21 are hinged to the top of the base 1. The tops of both hinged legs 21 are fixedly connected to the bottom of the screening box 2. A hydraulic cylinder 22 is hinged to the top of the base 1, and the output shaft of the hydraulic cylinder 22 is hinged to the bottom of the screening box 2. A discharge pipe with a material valve is fixedly installed at the bottom of the screening box 2, and a discharge port 23 is opened on one side of the screening box 2. The bottom end face of the discharge port 23 is flush with the top end face of the screening frame 3. The screening box 2 is equipped with a blocking plate 24. A double-shaft cylinder 25 is fixedly installed on one side of the outer wall of the screening box 2. The output shaft of the double-shaft cylinder 25 is fixedly connected to the blocking plate 24. A discharge hopper is fixedly installed on the side of the screening box 2 away from the blocking plate 24. After screening, the capsules that have passed through the screen hole 4 can be discharged by opening the material valve. Then, the output shaft of the hydraulic cylinder 22 is started to retract, so that the screening box 2 is tilted. Then, the output shaft of the double-shaft cylinder 25 is started to retract, so that the discharge port 23 can be opened to discharge the remaining capsules on the screening frame 3.

[0020] In this method, in order to ensure that the screening frame 3 has a vertical movement space, screening openings are provided on both sides of the screening box 2. Two connecting plates 5 pass through the two screening openings respectively, and the two connecting plates 5 contact the inner walls of the two screening openings respectively. The two screening openings are blocked on both sides of the screening frame 3.

[0021] The working principle of the anti-clogging capsule screening device provided by this utility model is as follows: In the initial state, all the crossbars 16 are inside the outer housing 12, and the output shafts of the hydraulic cylinder 22 and the dual-axis cylinder 25 are both extended. When screening capsules, the capsules to be screened are first poured into the screening box 2 through the hopper and piled on the screening frame 3. Then, the drive motor 10 is started, and its output shaft drives the cam 11 to rotate. When the rotating cam 11 contacts the top contact fold 9, it will lift it up, so that the inverted U-shaped frame rod 7 carries the two connecting plates 5 and the screening frame 3 to rise. At this time, the return spring 8 is compressed. When the cam 11 separates from the top contact fold 9, the compressed return spring 8 rebounds. Combined with the free fall of the screening frame 3, the screening frame 3 returns to its original position. When the cam 11 contacts the top contact fold 9 again, it will lift the screening frame 3 again and then it will fall down. This process is repeated to make the screening frame 3 form an up-and-down oscillating state, which can form an oscillating screening process for the capsules. During the screening process, a receiving cart can be placed below the discharge pipe and the material valve on it can be opened. The capsules that fall through the screen hole 4 will fall into the receiving cart. After screening for a period of time, the drive motor 10 is turned off to stop screening. Then, a receiving cart is pushed out and placed under the guide plate. The output shaft of the hydraulic cylinder 22 is then retracted, causing the entire screening box 2 to tilt. Subsequently, the output shaft of the dual-shaft cylinder 25 is retracted, bringing the blockage plate 24 out of the discharge port 23. The remaining qualified capsules on the screening frame 3 will be discharged from the discharge port 23 and fall into the receiving cart. In the subsequent screening process, when it is necessary to clear the blocked screen holes 4, the servo motor is first started in the forward direction. Its output shaft drives the moving screw 19 to rotate, and the moving block 20 on it moves horizontally with the rodless cylinder 13. When the moving block 20 moves to contact the inner wall of the limit slide near the screening box 2, the servo motor is turned off. At this time, all the horizontal connecting strips 16 enter the screening box 2, and the multiple clearing heads 17 correspond vertically to the multiple screen holes 4. Then, the rodless cylinder 13 is started, and the slider on it rises with the side connecting piece 14 until it rises to the maximum position. Once the capsules are in the high position, the unblocking head 17 will be inserted into the corresponding sieve hole 4, thereby pushing out some of the blocked capsules. At the same time, in order to prevent the capsules from being tightly stuck in the sieve hole 4, the drive motor 10 can be started simultaneously to make the screening frame 3 vibrate up and down again. At this time, in conjunction with the unblocking head 17, the blocked capsules can be quickly pushed out. After unblocking, the rodless cylinder 13 is started to bring the side connecting plate 14 back to the original height, and then the servo motor is started in reverse to bring the horizontal connecting bar 16 back into the outer housing 12. After that, capsule screening can continue.

[0022] Compared with related technologies, the anti-clogging capsule screening device provided by this utility model has the following beneficial effects: This invention provides an anti-clogging capsule screening device. A clearing head 17, corresponding vertically to the screen holes 4, is driven upwards by a rodless cylinder 13 and inserted into the corresponding screen hole 4 for clearing. To prevent capsules from becoming too tightly stuck, the clearing head 17 rises along with the screening frame 3, simultaneously activating the drive motor 10. The rapidly descending screening frame 3 impacts the clearing head 17, effectively dislodging the clogged capsules. The device achieves good clearing results with minimal downtime and few operating steps, allowing for quick resumption of capsule screening and improving screening efficiency.

[0023] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A clog-resistant capsule screening device, comprising a base and a screening box disposed above the base, characterized in that, The screening box is equipped with a screening frame. The two sides of the screening frame are in contact with the inner walls of the two sides of the screening box. The top of the screening frame has multiple screening holes. The screening box is equipped with a vibrating screening assembly, which includes two connecting plates. The two connecting plates are fixedly installed on the outer walls of the two sides of the screening frame, and both connecting plates extend outside the screening box and are slidably connected to the two sides of the screening box. Fixed crossbars are fixedly installed on the outer walls of the two sides of the screening box. The same inverted U-shaped frame rod is slidably installed on the two fixed crossbars. The bottom two ends of the inverted U-shaped frame rod are fixedly connected to the two connecting plates. Two return springs are sleeved on the inverted U-shaped frame rod. The top of the return spring is fixedly connected to the fixed crossbar, and its bottom end is fixedly connected to the connecting plate. A drive motor is fixedly installed on the top of the screening box. A cam is fixedly sleeved on the output shaft of the drive motor. A top contact flap is fixedly installed on the inverted U-shaped frame rod, and the top contact flap is adapted to the cam. An outer housing is fixedly installed on one side of the outer wall of the screening box. A shuttle opening is provided on the side of the screening box that is fixed to the outer housing. A rodless cylinder is provided inside the outer housing. A side plate is fixedly installed on the slider of the rodless cylinder. Multiple folding rods are fixedly installed on one side of the side plate. A horizontal connecting strip is fixedly installed at the top of each of the multiple folding rods. Multiple unblocking heads are fixedly installed at the top of each of the multiple horizontal connecting strips. The multiple unblocking heads are respectively adapted to the multiple screen holes. The multiple folding rods all pass through the shuttle opening and do not contact its inner wall.

2. The anti-clogging capsule screening device according to claim 1, characterized in that, A fixed frame is fixedly installed on the top of the outer housing. A movable screw is rotatably installed inside the fixed frame. A movable block is threaded onto the movable screw. The bottom of the movable block extends into the outer housing and is fixedly connected to the rodless cylinder. The movable block is slidably connected to the top of the outer housing. A servo motor is fixedly installed on the outer wall of the fixed frame away from the screening box. The output shaft of the servo motor is fixedly connected to one end of the movable screw.

3. The anti-clogging capsule screening device according to claim 1, characterized in that, The bottom inner wall of the outer casing is set as an inclined surface, and the inclined surface slopes from low to high from the position close to the screening box to the direction away from the screening box.

4. The anti-clogging capsule screening device according to claim 1, characterized in that, A discharge pipe is fixedly installed at the bottom of the screening box, and a material valve is provided on the discharge pipe. A discharge port is opened on one side of the screening box, and the bottom end face of the discharge port is flush with the top end face of the screening frame. A blocking plate is provided inside the discharge port. A dual-shaft cylinder is fixedly installed on the outer wall of one side of the screening box, and the output shaft of the dual-shaft cylinder is fixedly connected to the blocking plate. A pouring hopper is fixedly installed on the side of the screening box away from the blocking plate.

5. The anti-clogging capsule screening device according to claim 1, characterized in that, The base has two hinged legs at its top, and the tops of both hinged legs are fixedly connected to the bottom of the screening box. A hydraulic cylinder is hinged to the top of the base, and the output shaft of the hydraulic cylinder is hinged to the bottom of the screening box.

6. The anti-clogging capsule screening device according to claim 2, characterized in that, The top of the outer housing has a limiting slide, and the moving block passes through the limiting slide and contacts the inner wall of the limiting slide.

7. The anti-clogging capsule screening device according to claim 1, characterized in that, Screening ports are provided on both sides of the screening box. Two connecting plates pass through the two screening ports respectively, and the two connecting plates contact the inner walls of the two screening ports respectively. The two screening ports are blocked on both sides of the screening frame.

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