PVC raw material impurity removal device with automatic screening function

Abstract

The PVC raw material impurity removing device with the automatic screening function comprises a screening box, one side of the upper end of the screening box is fixedly communicated with a discharging box, a first driving device is fixedly installed on one side of the discharging box, the output end of the first driving device is in transmission connection with a first transmission mechanism, and the output end of the first transmission mechanism is in transmission connection with a second transmission mechanism. The other side of the discharging box is rotationally connected with an adjusting disc, and the middle of one side of the adjusting disc is fixedly connected with a rotating shaft. According to the feeding device, the first driving device is started, so that the adjusting disc is driven by the first transmission mechanism to rotate, the poke rod periodically enters the poke groove in the rotating process of the adjusting disc, the special-shaped disc is driven to indirectly rotate, and therefore the feeding frame is driven to indirectly rotate, intermittent feeding of PVC raw materials is achieved, and the production efficiency is improved. And the situation that the screen is blocked or damaged due to the fact that too much PVC raw materials enter the screening box can be effectively prevented, and therefore the screening efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of PVC raw material impurity removal equipment, in particular to a PVC raw material impurity removal device with an automatic screening function. Background Art

[0002] PVC raw materials mainly refer to polyvinyl chloride resin, which is a polymer formed by the free radical polymerization mechanism of vinyl chloride monomer in the presence of initiators such as peroxides and azo compounds or under the action of light and heat. During the production and use of PVC raw materials, various impurities such as metal, stone, soil, hair, fine particles and light impurities may be mixed in. Therefore, it is necessary to use impurity removal equipment to screen the PVC raw materials to prevent impurities in the PVC raw materials from entering the production equipment and causing damage to the production equipment.

[0003] In the prior art, for example, Chinese patent CN215396256U discloses an automatic screening and impurity removal device for raw materials for PVC pipe production, comprising a body shell, an inner wall of the body shell being provided with a first screen, a roller being provided above the first screen, connecting shafts being symmetrically provided at both ends of the roller, a spur gear being sleeved on the end of the connecting shaft extending toward the inner wall of the body shell, a running cavity corresponding to the spur gear being provided on the inner wall of the body shell, and teeth meshing with the spur gear being provided on the bottom wall of the running cavity; a plurality of groups of first flipping plates and second flipping plates being evenly arranged around the circumferential side wall of the roller, the first flipping plates and the second flipping plates being staggered, and the opening directions of the first flipping plates and the second flipping plates being opposite.

[0004] Most of the current PVC raw material impurity removal devices directly accumulate the PVC raw materials in the storage hopper during the screening process, and allow them to continuously fall into the impurity removal box for screening under the action of gravity. This method will cause the PVC raw materials to accumulate in the screening box, resulting in clogging or damage to the screen, affecting the screening efficiency. Utility Model Content

[0005] The purpose of the utility model is to provide a PVC raw material impurity removal device with an automatic screening function to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a PVC raw material impurity removal device with automatic screening function, comprising a screening box, one side of the upper end of the screening box is fixedly connected to a discharge box, one side of the discharge box is fixedly installed with a driving device 1, the output end of the driving device 1 is transmission-connected with a transmission mechanism 1, the other side of the discharge box is rotatably connected with an adjusting disk, the middle of one side of the adjusting disk is fixedly connected with a rotating shaft, one end of the rotating shaft is fixedly connected to the output end of the transmission mechanism 1, one side of the adjusting disk and near the edge is fixedly connected with a toggle rod, the inner wall of the discharge box is rotatably connected with a discharge rack, one end of the discharge rack is fixedly connected with a special-shaped disk, a plurality of toggle grooves are provided on one side of the outer surface of the special-shaped disk, and the outer side wall of the toggle rod is slidably connected to the inner wall of any of the toggle grooves.

[0007] As a further preferred embodiment of the present technical solution, the outer side wall of the rotating shaft is fixedly connected to a limiting plate, a plurality of limiting grooves are provided on the other side of the outer surface of the special-shaped plate, and the outer side wall of the limiting plate is slidably connected to the inner wall of any of the limiting grooves.

[0008] As a further preferred embodiment of the present technical solution, two limiting slides are fixedly connected to the inner bottom of the screening box, a movable box is provided inside the screening box, sliding bars are fixedly connected on both sides of the lower end of the movable box, and the outer walls of the two sliding bars are respectively slidably connected to the inner walls of the two limiting slides.

[0009] As a further preferred embodiment of the present technical solution, one side of the screening box is fixedly connected to a mounting platform, one side of the upper end of the mounting platform is fixedly installed with a second driving device, the output end of the second driving device is transmission-connected to a second transmission mechanism, the output end of the second transmission mechanism is transmission-connected to a rotating disk, one side of the rotating disk is rotationally connected to a pull rod near the edge, one end of the pull rod is rotationally connected to a connecting block, and one side of the connecting block is fixedly connected to one side of the movable box.

[0010] As a further preferred embodiment of the present technical solution, one side of the inner wall of the movable box is fixedly connected to a screening net 1, one side of the screening net 1 is fixedly connected to a guide hopper, and the other side of the inner wall of the movable box is fixedly connected to a screening net 2.

[0011] As a further preferred embodiment of the present technical solution, the lower end of the movable box is fixedly connected to a lower hopper, a through slot is penetrated through the middle of the lower end of the screening box, and the lower hopper is located inside the through slot.

[0012] The utility model provides a PVC raw material impurity removal device with automatic screening function, which has the following beneficial effects:

[0013] (1) The utility model starts the driving device 1, so that the adjusting disk rotates under the drive of the transmission mechanism 1. During the rotation of the adjusting disk, the toggle rod periodically enters the toggle groove, driving the special-shaped disk to rotate indirectly, thereby driving the unloading rack to rotate indirectly, realizing intermittent unloading of PVC raw materials, and effectively preventing the screen from being blocked or damaged due to excessive PVC raw materials entering the screening box, thereby improving the screening efficiency.

[0014] (2) The utility model starts the second driving device, and the second transmission mechanism drives the rotating disk to rotate, so that the pulling rod pulls or pushes the movable box to move in the screening box, and the PVC raw materials to be screened roll on the first screening net in the movable box, and in the process of rolling, the PVC raw materials that do not meet the requirements fall onto the second screening net, and the PVC raw materials are further screened, thereby performing graded screening on the PVC raw materials, thereby improving the sorting efficiency of the PVC raw materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic structural diagram of the utility model from a first perspective;

[0016] Figure 2 This is a schematic diagram of the structure of the utility model from a second perspective;

[0017] Figure 3 This is a schematic diagram of the internal structure of the lower material box in the utility model;

[0018] Figure 4 This is a schematic diagram of the internal structure of the screening box and the movable box in the present invention;

[0019] In the figure: 1. Screening box; 2. Discharge box; 3. Driving device 1; 4. Special-shaped disc; 5. Adjusting disc; 6. Toggle slot; 7. Limiting slot; 8. Toggle rod; 9. Transmission mechanism 1; 10. Discharge rack; 11. Rotating shaft; 12. Limiting disc; 13. Mounting table; 14. Driving device 2; 15. Transmission mechanism 2; 16. Rotating disc; 17. Pull rod; 18. Connecting block; 19. Movable box; 20. Screening net 1; 21. Guide hopper; 22. Limiting slideway; 23. Sliding bar; 24. Screening net 2; 25. Discharge hopper; 26. Through slot. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0021] The utility model provides a technical solution: Figure 1 - Figure 4As shown, in this embodiment, a PVC raw material impurity removal device with an automatic screening function includes a screening box 1, one side of the upper end of the screening box 1 is fixedly connected to a discharge box 2, one side of the discharge box 2 is fixedly installed with a driving device 3, the output end of the driving device 3 is transmission-connected to a transmission mechanism 9, the other side of the discharge box 2 is rotatably connected to an adjusting disk 5, the middle part of one side of the adjusting disk 5 is fixedly connected to a rotating shaft 11, one end of the rotating shaft 11 is fixedly connected to the output end of the transmission mechanism 9, one side of the adjusting disk 5 and near the edge is fixedly connected to a toggle rod 8, the inner wall of the discharge box 2 is rotatably connected to a discharge rack 10, the discharge rack 10 One end of the special-shaped disk 4 is fixedly connected, and a plurality of toggle grooves 6 are provided on one side of the outer surface of the special-shaped disk 4. The outer side wall of the toggle rod 8 is slidably connected to the inner wall of any toggle groove 6. By turning on the driving device 3, the adjusting disk 5 is rotated under the drive of the transmission mechanism 9. During the rotation of the adjusting disk 5, the toggle rod 8 periodically enters the toggle groove 6, driving the special-shaped disk 4 to rotate indirectly, thereby driving the unloading rack 10 to rotate indirectly, realizing intermittent unloading of PVC raw materials, and can effectively prevent the screen from being blocked or damaged due to excessive PVC raw materials entering the screening box 1, thereby improving the screening efficiency.

[0022] like Figure 3 As shown, the outer wall of the rotating shaft 11 is fixedly connected to the limiting plate 12, and a plurality of limiting grooves 7 are provided on the other side of the outer surface of the special-shaped plate 4. The outer wall of the limiting plate 12 is slidably connected to the inner wall of any limiting groove 7. Through the structural design of the limiting groove 7 and the limiting plate 12, the special-shaped plate 4 can be limited to prevent skewing and improve stability.

[0023] like Figure 2 and Figure 4 As shown, two limiting slides 22 are fixedly connected to the inner bottom of the screening box 1, and a movable box 19 is provided inside the screening box 1. Sliding bars 23 are fixedly connected on both sides of the lower end of the movable box 19, and the outer walls of the two sliding bars 23 are respectively slidably connected to the inner walls of the two limiting slides 22. Through the structural design of the limiting slides 22 and the sliding bars 23, the sliding direction of the movable box 19 can be limited.

[0024] like Figure 1 、 Figure 2 and Figure 4As shown, one side of the screening box 1 is fixedly connected to a mounting platform 13, and one side of the upper end of the mounting platform 13 is fixedly installed with a driving device 2 14, and the output end of the driving device 2 14 is transmission-connected to a transmission mechanism 2 15, and the output end of the transmission mechanism 2 15 is transmission-connected to a rotating disk 16, and a pull rod 17 is rotationally connected to one side of the rotating disk 16 near the edge, and one end of the pull rod 17 is rotationally connected to a connecting block 18, and one side of the connecting block 18 is fixedly connected to one side of a movable box 19. By turning on the driving device 2 14, the movable box 19 is reciprocated in the screening box 1, so that the screen in the movable box 19 is driven to screen impurities.

[0025] like Figure 4 As shown, a screening net 20 is fixedly connected to one side of the inner wall of the movable box 19, a guide hopper 21 is fixedly connected to one side of the screening net 20, and a screening net 24 is fixedly connected to the other side of the inner wall of the movable box 19. Through the structural design of the screening net 20 and the screening net 24, the device can perform graded screening and improve the sorting efficiency of PVC raw materials.

[0026] like Figure 4 As shown, the lower end of the movable box 19 is fixedly connected to a lower hopper 25, and a through slot 26 is opened through the middle of the lower end of the screening box 1. The lower hopper 25 is located inside the through slot 26, and the screened impurities can be conveniently discharged through the lower hopper 25.

[0027] The utility model provides a PVC raw material impurity removal device with automatic screening function, and the specific working principle is as follows:

[0028] When using PVC raw materials, first pour the PVC raw materials into the discharge box 2, then turn on the driving device 3, so that the adjusting disk 5 rotates under the drive of the transmission mechanism 9, and during the rotation of the adjusting disk 5, the toggle rod 8 periodically enters the toggle groove 6, driving the special-shaped disk 4 to rotate indirectly, thereby driving the discharge rack 10 to rotate indirectly, and the PVC raw materials are intermittently discharged into the movable box 19. When entering the movable box 19, the driving device 2 14 is turned on, and the transmission mechanism 2 15 drives the rotating disk 16 to rotate, so that the pulling rod 17 pulls or pushes the movable box 19 to move in the screening box 1, and the PVC raw materials to be screened roll on the screening net 20 in the movable box 19, and in the process of rolling, the PVC raw materials that do not meet the requirements fall onto the screening net 2 24, and the PVC raw materials are further screened. Impurities fall through the discharge hopper 25, thereby completing the screening of the PVC raw materials.

[0029] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A PVC raw material impurity removal device with automatic screening function, comprising a screening box (1), characterized in that: One side of the upper end of the screening box (1) is fixedly connected to a discharge box (2), one side of the discharge box (2) is fixedly installed with a driving device (3), the output end of the driving device (3) is transmission-connected to a transmission mechanism (9), the other side of the discharge box (2) is rotatably connected to an adjusting disk (5), a rotating shaft (11) is fixedly connected to the middle of one side of the adjusting disk (5), one end of the rotating shaft (11) is fixedly connected to the output end of the transmission mechanism (9), a toggle rod (8) is fixedly connected to one side of the adjusting disk (5) and near the edge, the inner wall of the discharge box (2) is rotatably connected to a discharge rack (10), one end of the discharge rack (10) is fixedly connected to a special-shaped disk (4), a plurality of toggle grooves (6) are provided on one side of the outer surface of the special-shaped disk (4), and the outer wall of the toggle rod (8) is slidably connected to the inner wall of any of the toggle grooves (6).

2. The PVC raw material impurity removal device with automatic screening function according to claim 1, characterized in that: The outer side wall of the rotating shaft (11) is fixedly connected to a limiting plate (12), and a plurality of limiting grooves (7) are provided on the other side of the outer surface of the special-shaped plate (4). The outer side wall of the limiting plate (12) is slidably connected to the inner wall of any of the limiting grooves (7).

3. The PVC raw material impurity removal device with automatic screening function according to claim 1, characterized in that: The inner bottom of the screening box (1) is fixedly connected to two limiting slides (22), and a movable box (19) is provided inside the screening box (1). Both sides of the lower end of the movable box (19) are fixedly connected to sliding bars (23), and the outer side walls of the two sliding bars (23) are respectively slidably connected to the inner walls of the two limiting slides (22).

4. The PVC raw material impurity removal device with automatic screening function according to claim 3 is characterized in that: One side of the screening box (1) is fixedly connected to a mounting platform (13), and one side of the upper end of the mounting platform (13) is fixedly installed with a second driving device (14), the output end of the second driving device (14) is transmission-connected to a second transmission mechanism (15), and the output end of the second transmission mechanism (15) is transmission-connected to a rotating disk (16), and a pull rod (17) is rotationally connected to one side of the rotating disk (16) near the edge, and one end of the pull rod (17) is rotationally connected to a connecting block (18), and one side of the connecting block (18) is fixedly connected to one side of the movable box (19).

5. The PVC raw material impurity removal device with automatic screening function according to claim 3, characterized in that: One side of the inner wall of the movable box (19) is fixedly connected to a screening net 1 (20), one side of the screening net 1 (20) is fixedly connected to a guide hopper (21), and the other side of the inner wall of the movable box (19) is fixedly connected to a screening net 2 (24).

6. The PVC raw material impurity removal device with automatic screening function according to claim 3, characterized in that: The lower end of the movable box (19) is fixedly connected to a lower hopper (25), and a through slot (26) is provided through the middle of the lower end of the screening box (1), and the lower hopper (25) is located inside the through slot (26).

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