Vibrating screen for plastic extruder

Abstract

The utility model discloses a vibrating screen for a plastic extruder, which comprises a box body, a first screen mesh is arranged in the box body, a second screen mesh is arranged in the box body and below the first screen mesh, a discharge component is arranged in the box body, and an ejection component is arranged in the box body. The discharging component comprises discharging plates arranged above the first screen and the second screen respectively, a driving plate fixedly connected with the tops of the discharging plates, a lead screw connected with the driving plate and a rotation stopping rod connected with the driving wheel. The problems that when an existing vibrating screen is used, although plastic particles can be screened in a layered mode, after screening, the plastic particles left in a screening net frame need to be removed from the whole screening net frame, then the plastic particles on the inner wall of the screening net frame can be cleaned, the working efficiency is reduced, and the practicability is reduced are solved.

Description

Technical Field

[0001] This utility model relates to the field of screening equipment technology, specifically a vibrating screen for plastic extruders. Background Technology

[0002] A plastic extruder is a piece of equipment used for plastic processing. It is mainly used to heat and melt solid plastic materials and then extrude them through a mold to form various plastic products. After the plastic extruder produces granular structures, in order to ensure that the diameter of the plastic granules is uniform and to improve product quality, the plastic granules need to be screened and classified. Therefore, a vibrating screen is required for screening.

[0003] Existing patent CN220409347U discloses a vibrating screen for a plastic extruder, including a base. A vibrating motor is fixedly installed at the upper center of the base. A vibrating box is fixedly connected to the output end of the vibrating motor. Two fixing plates are fixedly connected to the left and right walls of the vibrating box. A screening component is jointly arranged at the upper end of the two horizontal fixing plates. A collection frame is slidably connected to the lower wall of the vibrating box. A door is movably connected to the front end of the vibrating box. An observation window is provided at the front center of the door. A feed inlet is fixedly connected to the upper center of the upper end of the vibrating box. An electric push rod is fixedly connected to the upper center of the front end of the feed inlet. A cover plate is fixedly connected to the telescopic end of the electric push rod. Two screening structures are provided at the rear end of the vibrating box. The vibrating screen for a plastic extruder described in this utility model can perform double screening of plastic particles, improving screening effect and screening rate, and is easy to use.

[0004] Based on the search of the aforementioned patents and the findings of existing vibrating screens, although the aforementioned vibrating screens can perform stratified screening of plastic particles, the plastic particles remaining in the screening mesh frame after screening require the entire screening mesh frame to be disassembled to clean the plastic particles on its inner wall, resulting in reduced work efficiency and thus reduced practicality. Utility Model Content

[0005] The purpose of this invention is to provide a vibrating screen for plastic extruders, in order to solve the problem mentioned in the background art that, although existing vibrating screens can screen plastic particles in layers, the plastic particles remaining in the screening frame after screening require the entire screening frame to be disassembled to clean the plastic particles on its inner wall, resulting in reduced work efficiency and thus reduced practicality.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a vibrating screen for a plastic extruder, comprising a housing, a first screen provided inside the housing, a second screen provided inside the housing and located below the first screen, a discharge component provided inside the housing, and an ejection component provided inside the housing;

[0007] The discharge component includes a discharge plate respectively disposed above the first screen and the second screen, a drive plate fixedly connected to the top of the discharge plate, a lead screw connected to the drive plate, an anti-rotation rod connected to the drive wheel, a discharge port opened on the inner wall of the box and located above the first screen and the second screen, and a material receiving component for receiving materials. The lead screw is screwed to the drive plate and rotatably connected to the box. The anti-rotation rod passes through the drive plate and is slidably connected to the drive plate. The anti-rotation rod is fixedly connected to the inner wall of the box.

[0008] Preferably, the ejector component includes a receiving box located at the bottom of the box body, a storage opening on the inner wall of the box body, a top plate inside the storage opening, a bracket fixedly connected to the back of the box body, and a cylinder fixedly connected to the bracket, wherein the output end of the cylinder is fixedly connected to the top plate.

[0009] Preferably, the material holding component includes two support plates fixedly connected to one side of the box body, a slot opened on the top of the support plate, an insert block disposed in the slot, and a material holding box fixedly connected to the top of the insert block, wherein the insert block is inserted into the slot.

[0010] Preferably, a baffle is inserted into the discharge port, and a handle is fixedly connected to one side of the baffle.

[0011] Preferably, a drive wheel is fixedly connected to the outside of the lead screw, a belt is provided between the two drive wheels, one end of the lead screw is fixedly connected to a first motor, and the two drive wheels are connected by belt drive.

[0012] Preferably, both the first and second screens are provided with cams at their bottoms. A rotating shaft is fixedly connected to one side of the cam, and a second motor is fixedly connected to one end of the rotating shaft. Two sliding grooves are opened on the inner wall of the box, and sliders are slidably connected in the sliding grooves. A spring is fixedly connected to the top of the sliders. The two sliders are fixedly connected to the first and second screens respectively, and the rotating shaft is rotatably connected to the box.

[0013] Preferably, a guide groove is provided at the bottom of the box body, and a guide block is fixedly connected to the bottom of the receiving box, with the guide block slidably connected to the guide groove.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. By setting up a box, a first screen, a second screen, and a discharge component, the rotation of the screw can drive the drive plate to move, and the drive plate can move the discharge plate, which can push the plastic particles on the top of the first and second screens, so that they fall into the collection box through the discharge port. The plastic particles can be discharged without manual disassembly, which can improve the discharge efficiency, greatly shorten the working time, and thus greatly improve practicality and efficiency.

[0016] 2. With the addition of an ejector component, the cylinder can be activated to move the top plate, which then contacts the receiving box. As the top plate moves, the receiving box can be ejected from the box, eliminating the need for manual removal of the receiving box. This reduces labor intensity, saves time and effort, and further improves practicality. Attached Figure Description

[0017] Figure 1 A three-dimensional structural schematic diagram provided for this utility model;

[0018] Figure 2 The left view provided for this utility model;

[0019] Figure 3 Provided by this utility model Figure 2 A three-dimensional cross-sectional view at point AA;

[0020] Figure 4 Front view provided for this utility model;

[0021] Figure 5 Provided by this utility model Figure 4 3D cross-sectional view at point BB.

[0022] In the diagram: 1. Box body; 11. First screen; 12. Second screen; 21. Discharge plate; 22. Drive plate; 23. Lead screw; 24. Anti-rotation rod; 25. Discharge port; 31. Receiving box; 32. Storage port; 33. Top plate; 34. Bracket; 35. Cylinder; 41. Support plate; 42. Slot; 43. Insert block; 44. Material container; 51. Baffle; 52. Handle; 61. Drive wheel; 62. Belt; 63. First motor; 71. Cam; 72. Rotating shaft; 73. Second motor; 74. Slide groove; 75. Slider; 76. Spring; 81. Guide groove; 82. Guide block. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 as well as Figure 5This utility model provides a technical solution: a vibrating screen for a plastic extruder, including a housing 1, a first screen 11 inside the housing 1, a second screen 12 inside the housing 1 and below the first screen 11, a discharge component inside the housing 1, and an ejection component inside the housing 1. The discharge component includes a discharge plate 21 respectively disposed above the first screen 11 and the second screen 12, a drive plate 22 fixedly connected to the top of the discharge plate 21, a lead screw 23 connected to the drive plate 22, an anti-rotation rod 24 connected to the drive wheel 61, a discharge port 25 opened on the inner wall of the housing 1 and located above the first screen 11 and the second screen 12, and a material receiving component. The lead screw 23 is screwed to the drive plate 22 and rotatably connected to the housing 1. The rotating rod 24 passes through the drive plate 22 and is slidably connected to the drive plate 22. The anti-rotation rod 24 is fixedly connected to the inner wall of the box 1. The plastic particles can be screened in multiple layers through the first screen 11 and the second screen 12. The rotation of the screw 23 can push the drive plate 22 to move laterally, which in turn can drive the discharge plate 21 to move laterally. The plastic particles at the top of the first screen 11 and the second screen 12 can be discharged from the box 1 through the discharge port 25. The plastic particles can be discharged without disassembly, which can improve work efficiency. The material holding component includes two support plates 41 fixedly connected to one side of the box 1, a slot 42 opened on the top of the support plate 41, an insert 43 set in the slot 42, and a material holding box 44 fixedly connected to the top of the insert 43. The insert 43 and the slot 42 are connected to each other. 2. Insertion: The insert block 43 at the bottom of the material container 44 can be inserted into the slot 42, thereby fixing the material container 44 to the support plate 41, which facilitates the reception of particles discharged from the discharge port 25. A baffle 51 is inserted into the discharge port 25, and a handle 52 is fixedly connected to one side of the baffle 51. The handle 52 can drive the baffle 51 to move, thereby blocking or opening the discharge port 25. A drive wheel 61 is fixedly connected to the outside of the lead screw 23, and a belt 62 is provided between the two drive wheels 61. One end of one of the lead screws 23 is fixedly connected to a first motor 63. The two drive wheels 61 are connected by transmission through the belt 62. The first motor 63 is fixedly connected to the upper lead screw 23. The first motor 63 can drive the upper lead screw 23 to rotate, thereby driving the upper lead screw to rotate. The drive wheel 61 and belt 62 can drive another lead screw 23 to rotate, thus providing power for the rotation of both lead screws 23 and reducing usage and maintenance costs. Both the first screen 11 and the second screen 12 have cams 71 at their bottoms. A rotating shaft 72 is fixedly connected to one side of the cam 71, and a second motor 73 is fixedly connected to one end of the rotating shaft 72. Two sliding grooves 74 are formed on the inner wall of the housing 1, and sliders 75 are slidably connected within the grooves 74. A spring 76 is fixedly connected to the top of each slider 75. The two sliders 75 are fixedly connected to the first screen 11 and the second screen 12 respectively. The rotating shaft 72 is rotatably connected to the housing 1. The second motor 73 can control the rotation of the rotating shaft 72 and the cams 71. The rotation of the cams 71 can strike the first screen 11 and the second screen 12.The first screen 11 and the second screen 12 can drive the slider 75 to compress the spring 76, causing it to deform. The spring 76 and the cam 71 allow the first screen 11 and the second screen 12 to vibrate repeatedly, thus screening plastic particles.

[0025] Please see Figure 1 , Figure 4 as well as Figure 5 The ejector component includes a receiving box 31 located at the bottom of the housing 1, a storage opening 32 on the inner wall of the housing 1, a top plate 33 inside the storage opening 32, a bracket 34 fixedly connected to the back of the housing 1, and a cylinder 35 fixedly connected to the bracket 34. The output end of the cylinder 35 is fixedly connected to the top plate 33, and the top plate 33 can be stored in the storage opening 32. The bracket 34 can support and fix the cylinder 35. When the cylinder 35 is activated, it can push the top plate 33 to move. The movement of the top plate 33 can... The receiving box 31 contacts and pushes it to move out of the box 1. The receiving box 31 can be moved without manual movement, which can improve the moving efficiency of the receiving box 31. A guide groove 81 is provided at the bottom of the box 1. A guide block 82 is fixedly connected to the bottom of the receiving box 31. The guide block 82 is slidably connected to the guide groove 81. The movement of the receiving box 31 can drive the guide block 82 to move. The guide block 82 can improve the moving stability of the receiving box 31, prevent the receiving box 31 from tilting, and ensure the stability of receiving.

[0026] Working principle: During operation, the guide block 82 at the bottom of the receiving box 31 is inserted into the guide groove 81, fixing the receiving box 31 to the bottom of the housing 1. Then, the insert block 43 is inserted into the slot 42, fixing the material container 44 to the support plate 41. The plastic granules produced by the plastic extruder are discharged into the housing 1. The two second motors 73 are started, which drive the rotating shaft 72 to rotate. The rotation of the rotating shaft 72 drives the cam 71 to rotate. The two cams 71 can contact the first screen 11 and the second screen 12 respectively, pushing them to move. The movement of the first screen 11 and the second screen 12 can drive the slider 75 to compress the spring 76, causing it to deform. Using the spring 76 and the cams 71, the first screen 11 and the second screen 12 can be vibrated repeatedly, which can perform multi-layer screening of the plastic granules. Finally, the screened plastic granules fall into the receiving box 31. Then, the baffle 51 is removed by the handle 52, and the first motor 63 can be started. The first motor 63 can drive the upper lead screw 23 to rotate. The rotation of the lead screw 23 can cause the drive wheel 61 to rotate. The belt 62 can drive the other lead screw 23 to rotate. The rotation of the two lead screws 23 can cause the two drive plates 22 and the discharge plate 21 to move. The movement of the discharge plate 21 can discharge the plastic particles on the top of the first screen 11 and the second screen 12 through the discharge port 25, so that they fall into the material box 44. Then, the box 1 is opened and the cylinder 35 is started. The cylinder 35 can push the top plate 33 to move. The movement of the top plate 33 can contact the receiving box 31 and push the receiving box 31 to move it out of the box 1. The above is the working process of the whole device. All contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vibrating screen for a plastic extruder, comprising a housing (1), characterized in that: The box (1) is provided with a first screen (11), and a second screen (12) is provided inside the box (1) and below the first screen (11). The box (1) is provided with a discharge component and a push-out component. The discharge component includes a discharge plate (21) respectively disposed above the first screen (11) and the second screen (12), a drive plate (22) fixedly connected to the top of the discharge plate (21), a lead screw (23) connected to the drive plate (22), an anti-rotation rod (24) connected to the drive wheel (61), a discharge port (25) opened on the inner wall of the box (1) and located above the first screen (11) and the second screen (12), and a material receiving component for receiving materials. The lead screw (23) is screwed to the drive plate (22), the lead screw (23) is rotatably connected to the box (1), the anti-rotation rod (24) passes through the drive plate (22) and is slidably connected to the drive plate (22), and the anti-rotation rod (24) is fixedly connected to the inner wall of the box (1).

2. The vibrating screen for a plastic extruder according to claim 1, characterized in that: The ejector component includes a receiving box (31) located at the bottom of the box (1), a storage opening (32) opened on the inner wall of the box (1), a top plate (33) inside the storage opening (32), a bracket (34) fixedly connected to the back of the box (1), and a cylinder (35) fixedly connected to the bracket (34). The output end of the cylinder (35) is fixedly connected to the top plate (33).

3. The vibrating screen for a plastic extruder according to claim 1, characterized in that: The material holding component includes two support plates (41) fixedly connected to one side of the box body (1), a slot (42) opened on the top of the support plate (41), an insert (43) provided in the slot (42), and a material holding box (44) fixedly connected to the top of the insert (43). The insert (43) is inserted into the slot (42).

4. The vibrating screen for a plastic extruder according to claim 1, characterized in that: A baffle (51) is inserted into the discharge port (25), and a handle (52) is fixedly connected to one side of the baffle (51).

5. The vibrating screen for a plastic extruder according to claim 1, characterized in that: A drive wheel (61) is fixedly connected to the outside of the lead screw (23), and a belt (62) is provided between the two drive wheels (61). One end of one of the lead screws (23) is fixedly connected to a first motor (63), and the two drive wheels (61) are connected by the belt (62).

6. The vibrating screen for a plastic extruder according to claim 1, characterized in that: The bottom of the first screen (11) and the second screen (12) are provided with cams (71). A rotating shaft (72) is fixedly connected to one side of the cam (71). A second motor (73) is fixedly connected to one end of the rotating shaft (72). Two sliding grooves (74) are opened on the inner wall of the box (1). A slider (75) is slidably connected in the sliding groove (74). A spring (76) is fixedly connected to the top of the slider (75). The two sliders (75) are fixedly connected to the first screen (11) and the second screen (12) respectively. The rotating shaft (72) is rotatably connected to the box (1).

7. The vibrating screen for a plastic extruder according to claim 2, characterized in that: The bottom of the box (1) is provided with a guide groove (81), and the bottom of the receiving box (31) is fixedly connected with a guide block (82), and the guide block (82) is slidably connected to the guide groove (81).

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