Raw material crushing device for PVC pipe production

Abstract

The utility model provides a raw material crushing device for PVC pipe production relates to PVC pipe production technical field, including the crushing box, still including the lower support plate, the lower support plate top fixedly connected with the screening box, the screening box outside is equipped with with the upper hollow cover plate of lower support plate's fixed, the crushing box sets up in screening box top, the crushing box is fixed with the upper hollow cover plate, the both sides of screening box and be located the chute that opens at the bottom edge place, screening box has the mounting plate through the chute sliding connection, the mounting plate middle part is provided with the screen cloth, through setting up the cooperation structure of rotating wheel, transmission rod and reciprocating lever, will rotate motion convert into the reciprocating linear motion of screen cloth, make raw material move ceaselessly on the screen cloth, increase screening efficiency, utilize the impact force of reciprocating motion to make the raw material that clamps on the screen cloth fall off simultaneously, avoid the screen cloth blockage.

Description

Technical Field

[0001] This utility model relates to the field of PVC pipe production technology, and in particular to a raw material crushing device for PVC pipe production. Background Technology

[0002] PVC, or polyvinyl chloride, is a polymer formed by free radical polymerization under the action of initiators such as peroxides and azo compounds, or under the action of light and heat. When processing the raw materials of PVC pipes, they often need to be crushed to facilitate subsequent melting and shaping.

[0003] For example, there is a raw material crushing device for PVC pipe production, with publication number CN221132393U. When the second servo motor is started, it drives the right pulley to rotate. After the right pulley rotates, it drives the other pulleys to rotate through the belt, thereby driving all the grinding wheels to rotate. At this time, the grinding wheels can grind the raw material. The processed raw material can be discharged through the filter screen into the inner cavity of the second crushing component. The bottom of the inner cavity of the extrusion component is fixedly connected to the filter screen.

[0004] When this device is in use, the filter screen is easily clogged by the crushed PVC pipe material as it passes through, preventing the material from passing through smoothly and affecting the crushing efficiency and normal operation of the device. Utility Model Content

[0005] The purpose of this utility model is to solve the problems existing in the prior art, and to propose a raw material crushing device for PVC pipe production.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a raw material crushing device for PVC pipe production, comprising a crushing box and a lower support plate, wherein a screening box is fixedly connected to the top of the lower support plate, and an upper hollow cover plate fixed to the lower support plate is sleeved on the outside of the screening box, the crushing box is disposed on the top of the screening box, the crushing box is fixed to the upper hollow cover plate, and sliding grooves are provided on both sides of the screening box and at the bottom edge, the screening box is slidably connected to an installation plate through the sliding grooves, a screen is provided in the middle of the installation plate, a rotating wheel is provided on one side of the top of the lower support plate, a transmission rod is rotatably connected to the eccentric end of the rotating wheel, and a reciprocating rod fixed to the installation plate is rotatably connected to the other end of the transmission rod.

[0007] Preferably, a connecting rod is fixedly connected to the top of the upper hollow cover plate, the top of the connecting rod is fixed to the crushing box, and the outlet end of the crushing box is connected to the inlet end of the screening box.

[0008] Preferably, the bottom of the chute is provided with a guide groove, and the bottom of the mounting plate is fixedly connected with a guide wheel that rolls in the guide groove.

[0009] Preferably, the screening box has through slots on both sides and above the slide groove, and the screening box is slidably connected to a pusher plate through the through slots.

[0010] Preferably, a vertical rod is fixedly connected to the top corner of the upper hollow cover plate, and screw rods that are rotatably connected to the vertical rods are provided on both sides of the screening box, and threaded sleeves that are threadedly engaged with the screw rods are fixedly connected to both ends of the pusher plate.

[0011] Preferably, one end of each of the two lead screws is fixedly connected to a synchronous pulley, and the two synchronous pulleys are driven by a synchronous belt sleeved on their exterior.

[0012] Preferably, a waste outlet is provided on the other side of the screening box and at the bottom edge. A horizontally arranged fixed shaft is fixedly connected inside the waste outlet, and a number of shielding plates arranged in a linear array are sleeved on the fixed shaft.

[0013] Preferably, a motor is fixedly installed on the top of the lower support plate and on one side of the upright. The motor spindle located on the top of the lower support plate is fixed to the center of the rotating wheel, and the motor spindle located on one side of the upright is fixed to one of the lead screws.

[0014] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0015] 1. In this utility model, by setting up a cooperative structure of rotating wheel, transmission rod and reciprocating rod, the rotational motion is converted into the reciprocating linear motion of the screen, so that the raw material moves continuously on the screen, increasing the screening efficiency. At the same time, the impact force of the reciprocating motion is used to dislodge the raw material stuck on the screen, avoiding screen blockage.

[0016] 2. In this utility model, a waste cleaning system consisting of a pusher plate, a lead screw, a synchronous pulley, a synchronous belt, a waste outlet, and a baffle plate is set up. Under the drive of the lead screw, the pusher plate pushes the large particles of waste that have not passed through the screen to the waste outlet. The waste pushes up the baffle plate and is discharged, thereby realizing automated waste cleaning and preventing waste accumulation from affecting the screening efficiency. Attached Figure Description

[0017] Figure 1 This utility model provides a three-dimensional structural diagram of a raw material crushing device for PVC pipe production;

[0018] Figure 2 In this utility model Figure 1 A rear-view three-dimensional structural diagram;

[0019] Figure 3 This is a three-dimensional structural diagram of the screening box in this utility model;

[0020] Figure 4 This is a side sectional three-dimensional structural diagram of the pusher plate in this utility model;

[0021] Figure 5 This is a three-dimensional structural diagram of the screen in this utility model.

[0022] Legend: 1. Motor; 2. Lead screw; 3. Threaded sleeve; 4. Transmission rod; 5. Upper hollow cover plate; 6. Rotating wheel; 7. Lower support plate; 8. Through groove; 9. Screening box; 10. Crushing box; 11. Slide chute; 12. Guide groove; 13. Connecting rod; 14. Support plate; 15. Push plate; 16. Screen; 17. Mounting plate; 18. Reciprocating rod; 19. Fixed shaft; 20. Baffle plate; 21. Synchronous belt pulley; 22. Waste outlet; 23. Guide wheel. Detailed Implementation

[0023] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0025] like Figure 1-5 As shown, a raw material crushing device for PVC pipe production includes a crushing box 10 and a lower support plate 7. A screening box 9 is fixedly connected to the top of the lower support plate 7. A hollow upper cover plate 5, which is fixed to the lower support plate 7, is fitted on the outside of the screening box 9. The crushing box 10 is located on top of the screening box 9 and is fixed to the hollow upper cover plate 5. Sliding grooves 11 are provided on both sides of the screening box 9 and at the bottom edge. An installation plate 17 is slidably connected to the screening box 9 through the sliding grooves 11. A screen 16 is provided in the middle of the installation plate 17. A rotating wheel 6 is provided on one side of the top of the lower support plate 7. A transmission rod 4 is rotatably connected to the eccentric end of the rotating wheel 6. A reciprocating rod 18, which is fixed to the installation plate 17, is rotatably connected to the other end of the transmission rod 4.

[0026] In this technical solution, when the rotating wheel 6 rotates, it will drive the reciprocating rod 18 to reciprocate through the transmission rod 4, thereby causing the mounting plate 17 to slide back and forth along the guide groove 12 in the slide groove 11. The screen 16 in the middle of the mounting plate 17 also reciprocates accordingly, screening the raw materials that have been crushed and fallen into the screening box 9.

[0027] Through the cooperation of the rotating wheel 6, the transmission rod 4, and the reciprocating rod 18, the rotational motion is converted into the reciprocating linear motion of the mounting plate 17 and the screen 16. During the reciprocating motion of the screen 16, on the one hand, the raw materials can move continuously on the screen 16, increasing the screening efficiency; on the other hand, for raw materials that may be stuck on the screen 16, the impact force of the reciprocating motion will cause them to fall off, thus avoiding clogging of the screen 16.

[0028] In addition, the upper hollow cover plate 5 fitted on the outside of the screening box 9 is fixed to the lower support plate 7, and the crushing box 10 is fixed to the upper hollow cover plate 5. This structural design makes the connection of the entire device more stable and ensures the stability of each component during operation.

[0029] like Figure 3 As shown, a connecting rod 13 is fixedly connected to the top of the upper hollow cover plate 5. The top of the connecting rod 13 is fixed to the crushing box 10, and the outlet end of the crushing box 10 is connected to the inlet end of the screening box 9.

[0030] In this technical solution, the crushing box 10 is set on top of the screening box 9, and its outlet end is connected to the inlet end of the screening box 9, so that the crushed raw materials can fall directly into the screening box 9 for screening, the process is smooth and the work efficiency is improved.

[0031] like Figure 3 and Figure 5 As shown, a guide groove 12 is provided at the bottom of the slide 11, and a guide wheel 23 that rolls in the guide groove 12 is fixedly connected to the bottom of the mounting plate 17.

[0032] In this technical solution, the guide groove 12 and guide wheel 23 are set to improve the stability and smoothness of the reciprocating motion of the screen 16.

[0033] like Figure 4 As shown, screening box 9 has through slots 8 on both sides and above the slide chute 11. Screening box 9 is slidably connected to push plate 15 through through slots 8. On the other side of screening box 9 and at the bottom edge, there is a waste port 22. A horizontally set fixed shaft 19 is fixedly connected inside the waste port 22. Several baffle plates 20 arranged in a linear array are sleeved on the fixed shaft 19. A vertical rod 14 is fixedly connected to the top corner of the upper hollow cover plate 5. Screw rods 2 are set on both sides of screening box 9 and are rotatably connected to the vertical rods 14. Threaded sleeves 3 that are threaded with the screw rods 2 are fixedly connected to both ends of push plate 15. Synchronous pulleys 21 are fixedly connected to one end of the two screw rods 2. The two synchronous pulleys 21 are driven by a synchronous belt sleeve.

[0034] In this technical solution, after the screen 16 completes screening, the pusher plate 15 slides from one side of the screening box 9 along the through groove 8 to the other side, pushing the large waste particles that did not pass through the screen 16 to the waste outlet 22. Specifically, the two lead screws 2 drive the pusher plate 15 to move through the synchronous pulley 21 and the synchronous belt. When the pusher plate 15 pushes the waste to the waste outlet 22, the lead screws 2 continue to rotate, driving the pusher plate 15 to continue sliding, so that one end of the waste pushes up the bottom of the baffle plate 20, thereby causing the baffle plate 20 to rotate, thus opening the waste outlet 22 and discharging the waste.

[0035] like Figure 3 and Figure 4 As shown, motors 1 are fixedly installed on the top of the lower support plate 7 and one side of the upright 14. The main shaft of motor 1 located on the top of the lower support plate 7 is fixed to the center of the rotating wheel 6, and the main shaft of motor 1 located on one side of the upright 14 is fixed to one of the lead screws 2.

[0036] In this technical solution, the motor 1 located at the top of the lower support plate 7 is used to drive the rotating wheel 6 to rotate, and the motor 1 located on one side of the upright 14 is used to drive the lead screw 2 to rotate. In addition, the motor 1 located at the top of the lower support plate 7 is preferably a three-phase asynchronous motor, and the motor 1 located on one side of the upright 14 is preferably a servo motor.

[0037] Working principle: When the device is working, the motor 1 at the top of the lower support plate 7 drives the rotating wheel 6 to rotate. The rotating wheel 6 drives the reciprocating rod 18 to move back and forth through the transmission rod 4, so that the mounting plate 17 slides along the guide groove 12 in the sliding groove 11 of the screening box 9. The screen 16 in the middle of the mounting plate 17 moves back and forth accordingly, screening the raw materials falling from the crushing box 10 into the screening box 9. After screening, the motor 1 on one side of the upright rod 14 drives the lead screw 2 to rotate. Through the synchronous pulley 21 and the synchronous belt, the two lead screws 2 rotate synchronously, driving the pusher plate 15 to slide along the through groove 8, pushing the large particles of waste that have not passed through the screen 16 to the waste port 22. The waste pushes up the baffle plate 20 on the fixed shaft 19 and is discharged, completing the raw material crushing and screening and waste cleaning.

[0038] The wiring diagram of motor 1 in this utility model is common knowledge in the field, and its working principle is a well-known technology. The appropriate model is selected according to actual use. Therefore, the control method and wiring layout of motor 1 will not be explained in detail.

[0039] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the present utility model.

Claims

1. A raw material crushing device for PVC pipe production, comprising a crushing box (10), characterized in that: It also includes a lower support plate (7), on the top of which a screening box (9) is fixedly connected. The outer side of the screening box (9) is fitted with an upper hollow cover plate (5) fixed to the lower support plate (7). The crushing box (10) is set on the top of the screening box (9). The crushing box (10) is fixed to the upper hollow cover plate (5). The screening box (9) has sliding grooves (11) on both sides and at the bottom edge. The screening box (9) is slidably connected to an installation plate (17) through the sliding grooves (11). A screen (16) is set in the middle of the installation plate (17). A rotating wheel (6) is set on one side of the top of the lower support plate (7). The eccentric end of the rotating wheel (6) is rotatably connected to a transmission rod (4). The other end of the transmission rod (4) is rotatably connected to a reciprocating rod (18) fixed to the installation plate (17).

2. The raw material crushing device for PVC pipe production according to claim 1, characterized in that: A connecting rod (13) is fixedly connected to the top of the upper hollow cover plate (5). The top of the connecting rod (13) is fixed to the crushing box (10). The outlet end of the crushing box (10) is connected to the inlet end of the screening box (9).

3. The raw material crushing device for PVC pipe production according to claim 1, characterized in that: The bottom of the slide (11) is provided with a guide groove (12), and the bottom of the mounting plate (17) is fixedly connected with a guide wheel (23) that rolls in the guide groove (12).

4. The raw material crushing device for PVC pipe production according to claim 1, characterized in that: The screening box (9) has through slots (8) on both sides and above the slide groove (11), and the screening box (9) is slidably connected to the pusher plate (15) through the through slots (8).

5. The raw material crushing device for PVC pipe production according to claim 4, characterized in that: The top corner of the upper hollow cover plate (5) is fixedly connected to a vertical rod (14), and the two sides of the screening box (9) are provided with screw rods (2) that are rotatably connected to the vertical rods (14). The two ends of the pusher plate (15) are fixedly connected with threaded sleeves (3) that are threadedly engaged with the screw rods (2).

6. The raw material crushing device for PVC pipe production according to claim 5, characterized in that: Two lead screws (2) are fixedly connected to one end of a synchronous pulley (21), and the two synchronous pulleys (21) are driven by a synchronous belt sleeved on the outside.

7. The raw material crushing device for PVC pipe production according to claim 1, characterized in that: On the other side of the screening box (9) and at the bottom edge, there is a waste port (22). A horizontally arranged fixed shaft (19) is fixedly connected inside the waste port (22). Several baffles (20) arranged in a linear array are sleeved on the fixed shaft (19).

8. The raw material crushing device for PVC pipe production according to claim 1, characterized in that: Motors (1) are fixedly installed on the top of the lower support plate (7) and on one side of the upright (14). The main shaft of the motor (1) located on the top of the lower support plate (7) is fixed to the center of the rotating wheel (6), and the main shaft of the motor (1) located on one side of the upright (14) is fixed to one of the lead screws (2).

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