A polyvinyl chloride production material precision screening feeding regulation device

Abstract

This invention discloses a precision screening and feeding control device for polyvinyl chloride (PVC) production materials, relating to the field of PVC processing technology. It includes a main unit, a screening unit and an anti-clogging unit disposed inside the main unit, a cleaning unit disposed on the surface of the main unit, and a conveying unit disposed on the side of the main unit. The screening unit includes a connecting platform installed on the bottom wall of the main unit, a fixed box installed on the top of the connecting platform, a rotating through hole opened on the top of the fixed box, a rotating rod movably installed inside the fixed box and passing through the rotating through hole, an adjusting component disposed inside the fixed box, a connecting seat installed on the top of the rotating rod, and a screening component disposed on the side of the connecting seat. This invention provides a precision screening and feeding control device for PVC production materials. Through the screening and conveying units, it enables convenient replacement of the screen, improving work efficiency.

Description

Technical Field

[0001] This invention relates to the field of polyvinyl chloride (PVC) processing technology, and in particular to a device for precise screening and feeding control of PVC production materials. Background Technology

[0002] Polyvinyl chloride (PVC) is a polymer formed by polymerization of peroxides, azo compounds, or other initiators, or by polymerization under the action of light and heat, according to the free radical polymerization mechanism. PVC is a white powder with an amorphous structure, poor stability to light and heat, no fixed melting point, and good mechanical properties. When processing PVC, crushing equipment is required to crush the PVC raw material and then screen the crushed material.

[0003] A search revealed a polyvinyl chloride (PVC) raw material crushing and screening device (publication number: CN223069594U), relating to the field of PVC production technology. The device includes a support base with a crushing assembly mounted on its top. This assembly is used to break up any adhering raw materials after crushing. The crushing assembly comprises a crushing box, a first motor, a rotating shaft, and crushing plates. The crushing box is mounted on top of the support base, the first motor is mounted on the front of the crushing box, the rotating shaft is mounted inside the crushing box with one end connected to the first motor, and the crushing plates are mounted on the outside of the rotating shaft. An inlet is located on the top of the crushing box. In this invention, the first motor drives the rotating shaft at its output end to rotate, causing multiple crushing plates mounted on the outside of the rotating shaft to rotate. This allows the raw materials entering the crushing box to be crushed and separated from any adhering material after crushing, ensuring the quality of the crushed raw materials.

[0004] Although the above solution achieves the effect of screening the crushed raw materials, it can only screen crushed materials of a fixed size. When it is necessary to screen crushed materials of different specifications, it is necessary to disassemble and reassemble the unused screens and then install the required screens, which results in low work efficiency. Therefore, we propose a precision screening and feeding control device for polyvinyl chloride production materials. Summary of the Invention

[0005] The main objective of this invention is to provide a precise screening and feeding control device for polyvinyl chloride (PVC) production materials. By setting up a screening unit and a conveying unit, it solves the problem of low work efficiency when screening crushed materials of different specifications, which requires disassembling and reassembling unused screens and then installing the required screens.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A precision screening and feeding control device for polyvinyl chloride production materials includes a main unit, a screening unit and an anti-blocking unit disposed inside the main unit, a cleaning unit disposed on the surface of the main unit, and a conveying unit disposed on the side of the main unit. The screening unit includes a connecting platform installed on the bottom wall of the main unit, a fixed box installed on the top of the connecting platform, a rotating through hole opened on the top of the fixed box, a rotating rod movably installed inside the fixed box and passing through the rotating through hole, an adjusting component set inside the fixed box, a connecting seat installed on the top of the rotating rod, and a screening component set on the side of the connecting seat. The conveying unit includes a fixed frame disposed on the side of the main unit, a conveyor belt movably installed inside the fixed frame, and a fourth drive motor installed at the input end of the conveyor belt.

[0007] Preferably, the main unit includes a fixed platform, a screening frame mounted on the top of the fixed platform, and a controller mounted on the side wall of the screening frame.

[0008] Preferably, the adjusting component includes a worm gear movably installed inside the fixed box, a worm wheel installed on the side wall of the rotating rod and meshing with the worm gear, and a third drive motor installed at the input end of the worm gear.

[0009] Preferably, the screening component includes a screening frame installed on the side wall of the connecting seat, a connecting plate installed on the inner side wall of the screening frame, a connecting spring installed on the top of the connecting plate, and a screening plate installed on the end of the connecting spring.

[0010] Preferably, there are three sets of screening components, and the sieve aperture density of the screening plates in the three sets of screening components is different.

[0011] Preferably, the anti-clogging unit includes a rotating shaft movably installed inside the screening frame, a cam installed on the side wall of the rotating shaft, and a first drive motor installed at the input end of the rotating shaft.

[0012] Preferably, the cleaning unit includes a fixed seat installed on the side wall of the screening frame, a threaded shaft movably installed inside the fixed seat, a movable part installed on the circumferential side of the threaded shaft, a cleaning part disposed on the side of the movable part, and a second drive motor installed at the input end of the threaded shaft.

[0013] Preferably, the cleaning component includes a connecting frame installed at the bottom of the movable component, and a cleaning brush installed on the inner bottom wall of the connecting frame.

[0014] Preferably, the cleaning unit further includes a limiting washer installed on the inner side wall of the fixed seat, and the limiting washer is sleeved on the circumferential side of the threaded shaft.

[0015] Compared with the prior art, the present invention has the following beneficial effects: In this invention, through the screening and conveying units, when the screen needs to be replaced according to the screening of different specifications of crushed materials, the third drive motor drives the worm gear to rotate, and the worm gear meshes with the worm wheel, thereby causing the worm wheel to drive the rotating rod to rotate, which in turn causes the connecting seat to drive the screening component to rotate until the screening component with the corresponding screen hole density is located above the screening frame, thus achieving convenient screen replacement and improving work efficiency. After the corresponding screen is replaced, PVC production materials can be fed onto the screening component, which then screens the PVC production materials. During the screening process, the first drive motor drives the rotating shaft to rotate, and the rotating shaft drives the cam to rotate. The cam drives the screening plate to vibrate up and down, shaking off the PVC production materials stuck in the screen holes of the screening component, ensuring the screening effect. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a top view of the structure of the present invention; Figure 3 For the present invention Figure 2 Schematic diagram of the cross-sectional structure at point AA; Figure 4 For the present invention Figure 3 Enlarged schematic diagram of the I-structure; Figure 5 For the present invention Figure 2 Schematic diagram of the cross-sectional structure at point BB; Figure 6 For the present invention Figure 3 Schematic diagram of the cross-sectional structure at the CC section; Figure 7 For the present invention Figure 3 Schematic diagram of the cross-sectional structure at point DD.

[0017] In the picture: 1. Main unit; 101. Fixed platform; 102. Screening frame; 103. Controller; 2. Screening unit; 201. Connecting platform; 202. Fixing box; 203. Rotating rod; 204. Adjusting component; 2041. Worm gear; 2042. Worm wheel; 2043. Third drive motor; 205. Connecting seat; 206. Screening component; 2061. Screening frame; 2062. Connecting plate; 2063. Connecting spring; 2064. Screening plate; 3. Anti-blocking unit; 301. Rotating shaft; 302. Cam; 303. First drive motor; 4. Cleaning unit; 401. Fixed base; 402. Moving part; 403. Cleaning component; 4031. Connecting frame; 4032. Cleaning brush; 404. Second drive motor; 405. Threaded shaft; 406. Limit washer; 5. Conveying unit; 501. Fixing frame; 502. Conveyor belt; 503. Fourth drive motor. Detailed Implementation

[0018] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments. Example

[0019] like Figure 1 , Figure 2 , Figure 3 , Figure 4 as well as Figure 5 As shown, a precision screening and feeding control device for polyvinyl chloride production materials includes a main unit 1, a screening unit 2 and an anti-blocking unit 3 disposed inside the main unit 1, a cleaning unit 4 disposed on the surface of the main unit 1, and a conveying unit 5 disposed on the side of the main unit 1. like Figure 3 As shown, the screening unit 2 includes a connecting platform 201 installed on the bottom wall of the main unit 1, a fixed box 202 installed on the top of the connecting platform 201, a rotating through hole opened on the top of the fixed box 202, a rotating rod 203 movably installed inside the fixed box 202 and passing through the rotating through hole, an adjusting component 204 disposed inside the fixed box 202, a connecting seat 205 installed on the top of the rotating rod 203, and a screening component 206 disposed on the side of the connecting seat 205. The adjusting component 204 can adjust the rotation of the rotating rod 203. like Figure 2 As shown, the conveying unit 5 includes a fixed frame 501 disposed on the side of the main unit 1, a conveyor belt 502 movably installed inside the fixed frame 501, and a fourth drive motor 503 installed at the input end of the conveyor belt 502. When the fourth drive motor 503 drives the conveyor belt 502 to rotate, the screened material can be transported.

[0020] like Figure 1 As shown, the main unit 1 includes a fixed platform 101, a screening frame 102 installed on the top of the fixed platform 101, and a controller 103 installed on the side wall of the screening frame 102. The controller 103 can realize the precise control of the polyvinyl chloride production material screening and feeding control device.

[0021] like Figure 6 As shown, the adjusting component 204 includes a worm 2041 movably installed inside the fixed box 202, a worm wheel 2042 installed on the side wall of the rotating rod 203 and meshing with the worm 2041, and a third drive motor 2043 installed at the input end of the worm 2041. When the third drive motor 2043 drives the worm 2041 to rotate, the worm 2041 can mesh with and drive the worm wheel 2042.

[0022] like Figure 4 As shown, the screening component 206 includes a screening frame 2061 installed on the side wall of the connecting seat 205, a connecting plate 2062 installed on the inner side wall of the screening frame 2061, a connecting spring 2063 installed on the top of the connecting plate 2062, and a screening plate 2064 installed on the end of the connecting spring 2063. The connection spring 2063 makes the up-and-down movement of the screening plate 2064 more stable.

[0023] like Figure 1 and Figure 3 As shown, there are three sets of screening components 206, and the mesh density of the screening plates 2064 of the three sets of screening components 206 is different, so as to realize the screening of materials of different specifications.

[0024] like Figure 5 As shown, the anti-blocking unit 3 includes a rotating shaft 301 movably installed inside the screening frame 102, a cam 302 installed on the side wall of the rotating shaft 301, and a first drive motor 303 installed at the input end of the rotating shaft 301. When the first drive motor 303 drives the rotating shaft 301 to rotate, the rotating shaft 301 can drive the cam 302 to rotate.

[0025] like Figure 6 As shown, the cleaning unit 4 includes a fixed seat 401 installed on the side wall of the screening frame 102, a threaded shaft 405 movably installed inside the fixed seat 401, a movable part 402 installed on the circumferential side of the threaded shaft 405, a cleaning part 403 provided on the side of the movable part 402, and a second drive motor 404 installed at the input end of the threaded shaft 405. When the second drive motor 404 drives the threaded shaft 405 to rotate, the movable part 402 can move along the threaded shaft 405.

[0026] like Figure 7 As shown, the cleaning component 403 includes a connecting frame 4031 installed at the bottom of the moving component 402, and a cleaning brush 4032 installed on the inner bottom wall of the connecting frame 4031. During the movement of the moving component 402 along the threaded shaft 405, the connecting frame 4031 can drive the cleaning brush 4032 to clean the surface of the screening plate 2064.

[0027] When the screen needs to be replaced according to the screening of different specifications of crushed materials, the third drive motor 2043 drives the worm gear 2041 to rotate. The worm gear 2041 meshes with the worm wheel 2042, which in turn drives the rotating rod 203 to rotate. This causes the connecting seat 205 to drive the screening component 206 to rotate until the screening component 206 with the corresponding screen aperture density is located above the screening frame 102, thus realizing convenient replacement of the screen and improving work efficiency. Example

[0028] like Figure 1 , Figure 2 , Figure 3 , Figure 4 as well as Figure 5 As shown, a precision screening and feeding control device for polyvinyl chloride production materials includes a main unit 1, a screening unit 2 and an anti-blocking unit 3 disposed inside the main unit 1, a cleaning unit 4 disposed on the surface of the main unit 1, and a conveying unit 5 disposed on the side of the main unit 1. like Figure 3 As shown, the screening unit 2 includes a connecting platform 201 installed on the bottom wall of the main unit 1, a fixed box 202 installed on the top of the connecting platform 201, a rotating through hole opened on the top of the fixed box 202, a rotating rod 203 movably installed inside the fixed box 202 and passing through the rotating through hole, an adjusting component 204 disposed inside the fixed box 202, a connecting seat 205 installed on the top of the rotating rod 203, and a screening component 206 disposed on the side of the connecting seat 205. The adjusting component 204 can adjust the rotation of the rotating rod 203. like Figure 2 As shown, the conveying unit 5 includes a fixed frame 501 disposed on the side of the main unit 1, a conveyor belt 502 movably installed inside the fixed frame 501, and a fourth drive motor 503 installed at the input end of the conveyor belt 502. When the fourth drive motor 503 drives the conveyor belt 502 to rotate, the screened material can be transported.

[0029] like Figure 1 As shown, the main unit 1 includes a fixed platform 101, a screening frame 102 installed on the top of the fixed platform 101, and a controller 103 installed on the side wall of the screening frame 102. The controller 103 can realize the precise control of the polyvinyl chloride production material screening and feeding control device.

[0030] like Figure 6 As shown, the adjusting component 204 includes a worm 2041 movably installed inside the fixed box 202, a worm wheel 2042 installed on the side wall of the rotating rod 203 and meshing with the worm 2041, and a third drive motor 2043 installed at the input end of the worm 2041. When the third drive motor 2043 drives the worm 2041 to rotate, the worm 2041 can mesh with and drive the worm wheel 2042.

[0031] like Figure 4 As shown, the screening component 206 includes a screening frame 2061 installed on the side wall of the connecting seat 205, a connecting plate 2062 installed on the inner side wall of the screening frame 2061, a connecting spring 2063 installed on the top of the connecting plate 2062, and a screening plate 2064 installed on the end of the connecting spring 2063. The connection spring 2063 makes the up-and-down movement of the screening plate 2064 more stable.

[0032] like Figure 1and Figure 3 As shown, there are three sets of screening components 206, and the mesh density of the screening plates 2064 of the three sets of screening components 206 is different, so as to realize the screening of materials of different specifications.

[0033] like Figure 5 As shown, the anti-blocking unit 3 includes a rotating shaft 301 movably installed inside the screening frame 102, a cam 302 installed on the side wall of the rotating shaft 301, and a first drive motor 303 installed at the input end of the rotating shaft 301. When the first drive motor 303 drives the rotating shaft 301 to rotate, the rotating shaft 301 can drive the cam 302 to rotate.

[0034] like Figure 6 As shown, the cleaning unit 4 includes a fixed seat 401 installed on the side wall of the screening frame 102, a threaded shaft 405 movably installed inside the fixed seat 401, a movable part 402 installed on the circumferential side of the threaded shaft 405, a cleaning part 403 provided on the side of the movable part 402, and a second drive motor 404 installed at the input end of the threaded shaft 405. When the second drive motor 404 drives the threaded shaft 405 to rotate, the movable part 402 can move along the threaded shaft 405.

[0035] like Figure 7 As shown, the cleaning component 403 includes a connecting frame 4031 installed at the bottom of the moving component 402, and a cleaning brush 4032 installed on the inner bottom wall of the connecting frame 4031. During the movement of the moving component 402 along the threaded shaft 405, the connecting frame 4031 can drive the cleaning brush 4032 to clean the surface of the screening plate 2064.

[0036] like Figure 6 As shown, the cleaning unit 4 also includes a limiting washer 406 installed on the inner side wall of the fixed seat 401, and the limiting washer 406 is sleeved on the circumferential side of the threaded shaft 405. The setting of the limiting washer 406 avoids the moving part 402 from contacting and colliding with the inner side wall of the fixed seat 401 during the movement of the threaded shaft 405.

[0037] After the corresponding screen is replaced, the PVC production material can be fed into the screening component 206, which will screen the PVC production material. During the screening process, the first drive motor 303 drives the rotating shaft 301 to rotate, and the rotating shaft 301 drives the cam 302 to rotate. The cam 302 drives the screening plate 2064 to vibrate up and down, shaking off the PVC production material stuck in the screen holes of the screening component 206, thus ensuring the screening effect.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A precision screening and feeding control device for polyvinyl chloride (PVC) production materials, comprising a main unit (1), characterized in that, It also includes a screening unit (2) and an anti-blocking unit (3) disposed inside the main body unit (1), a cleaning unit (4) disposed on the surface of the main body unit (1), and a conveying unit (5) disposed on the side of the main body unit (1). The screening unit (2) includes a connecting platform (201) installed on the bottom wall of the main unit (1), a fixed box (202) installed on the top of the connecting platform (201), a rotating through hole opened on the top of the fixed box (202), a rotating rod (203) movably installed inside the fixed box (202) and passing through the rotating through hole, an adjusting component (204) set inside the fixed box (202), a connecting seat (205) installed on the top of the rotating rod (203), and a screening component (206) set on the side of the connecting seat (205). The conveying unit (5) includes a fixed frame (501) disposed on the side of the main unit (1), a conveyor belt (502) movably installed inside the fixed frame (501), and a fourth drive motor (503) installed at the input end of the conveyor belt (502).

2. The precision screening and feeding control device for polyvinyl chloride production materials according to claim 1, characterized in that: The main unit (1) includes a fixed platform (101), a screening rack (102) installed on the top of the fixed platform (101), and a controller (103) installed on the side wall of the screening rack (102).

3. The precision screening and feeding control device for polyvinyl chloride production materials according to claim 2, characterized in that: The adjusting component (204) includes a worm gear (2041) movably installed inside the fixed box (202), a worm wheel (2042) installed on the side wall of the rotating rod (203) and meshing with the worm gear (2041), and a third drive motor (2043) installed at the input end of the worm gear (2041).

4. The precision screening and feeding control device for polyvinyl chloride production materials according to claim 1, characterized in that: The screening component (206) includes a screening frame (2061) installed on the side wall of the connecting seat (205), a connecting plate (2062) installed on the inner side wall of the screening frame (2061), a connecting spring (2063) installed on the top of the connecting plate (2062), and a screening plate (2064) installed on the end of the connecting spring (2063).

5. The precision screening and feeding control device for polyvinyl chloride production materials according to claim 4, characterized in that: There are three sets of screening components (206), and the sieve aperture density of the screening plates (2064) of the three sets of screening components (206) is different.

6. The precision screening and feeding control device for polyvinyl chloride production materials according to claim 2, characterized in that: The anti-blocking unit (3) includes a rotating shaft (301) movably installed inside the screening frame (102), a cam (302) installed on the side wall of the rotating shaft (301), and a first drive motor (303) installed at the input end of the rotating shaft (301).

7. The precision screening and feeding control device for polyvinyl chloride production materials according to claim 2, characterized in that: The cleaning unit (4) includes a fixed seat (401) installed on the side wall of the screening frame (102), a threaded shaft (405) movably installed inside the fixed seat (401), a movable part (402) installed on the circumferential side of the threaded shaft (405), a cleaning part (403) provided on the side of the movable part (402), and a second drive motor (404) installed at the input end of the threaded shaft (405).

8. The precision screening and feeding control device for polyvinyl chloride production materials according to claim 7, characterized in that: The cleaning component (403) includes a connecting frame (4031) installed at the bottom of the movable component (402) and a cleaning brush (4032) installed on the inner bottom wall of the connecting frame (4031).

9. The precision screening and feeding control device for polyvinyl chloride production materials according to claim 7, characterized in that: The cleaning unit (4) also includes a limiting washer (406) installed on the inner side wall of the fixed seat (401), and the limiting washer (406) is sleeved on the circumferential side of the threaded shaft (405).

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