Waste plastic crushing device capable of automatically returning materials and used for processing PVC (Poly Vinyl Chloride) particles

Abstract

The utility model discloses an automatic feeding back waste plastic crushing device for PVC (polyvinyl chloride) particle processing, and relates to the field of PVC particle processing, the automatic feeding back waste plastic crushing device comprises a shell and a feeding port arranged on the left side of the upper end of the shell, a feeding port is fixedly arranged on the inner wall of the shell, a crushing roller is arranged in the shell, and a discharging pull plate is nested at the bottom of the shell. According to the waste plastic smashing device capable of automatically returning the materials and used for PVC particle processing, waste plastic falls into the collecting cavity along the shell through the inclined arrangement of the bottom of the shell, the collecting cavity conveys the plastic into the conveying barrel, the conveying rod is started through the motor, and the conveying rod is attached to the inner wall of the conveying barrel; and the crushed waste plastic is driven to ascend along with rotation of the conveying rod until the waste plastic is located at the corresponding material returning opening, the material returning opening is aligned with the interior of the feeding opening again for feeding, the automatic material returning effect can be achieved, manual re-feeding is not needed, multiple times of crushing can be automatically conducted, and the quality after crushing is improved.

Description

Technical Field

[0001] This utility model relates to the field of PVC granule processing technology, specifically to a waste plastic crushing device for PVC granule processing with automatic material return. Background Technology

[0002] Waste plastic crushing equipment for PVC granulation is a mechanical device specifically designed to crush waste PVC plastic (such as scraps, waste products, recycled products, etc.) into fine particles for subsequent recycling or direct processing.

[0003] In existing technologies, when waste plastics are crushed, single crushing can easily result in poor crushing effect, and the crushed parts are still relatively large in size.

[0004] To overcome the above shortcomings, a prior art Chinese patent (publication number CN209141200U) discloses a waste plastic crushing and recycling device, including a lower shell, an upper shell fixedly connected to the upper end of the lower shell, a discharge port on one side of the lower shell, a feed hopper fixedly connected to the upper end of the upper shell, and a crushing mechanism inside the upper shell. The crushing effect is improved by setting an adjusting roller, and the waste plastic can be crushed into smaller pieces, thereby expanding the application range of the recycling device.

[0005] While existing technologies can overcome the shortcomings mentioned above, other problems still exist in their operation. For example, before PVC granules are processed, the raw materials are crushed. The crushed parts are large and often need to be crushed multiple times. When the crushed plastic is manually lifted and fed back into the crushing port, it puts a heavy burden on the workers and consumes a lot of physical strength. Utility Model Content

[0006] The purpose of this utility model is to provide an automatic waste plastic crushing device for PVC granule processing, in order to solve the problem mentioned in the background art that before PVC granules are processed, the raw materials are crushed, the crushed parts are large, and multiple crushing is often required. When the crushed plastic is manually lifted and fed back into the crushing port, it is a heavy burden on the workers and consumes a lot of physical strength.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an automatic PVC granule processing waste plastic crushing device, comprising a shell and a feeding port provided on the upper left side of the shell, and a feeding port fixedly installed on the inner wall of the shell, and a crushing roller provided inside the shell, and a discharge pull plate nested at the bottom of the shell; a conveying cylinder is installed on the right side of the shell, and an automatic return mechanism is provided inside the conveying cylinder; a positioning plate is fixedly installed at the lower end of the shell, and an auxiliary feeding mechanism is provided on the inner side of the positioning plate.

[0008] Furthermore, the crushing rollers are arranged in an alternating manner, and there are four crushing rollers in total. A drive motor is provided at the left end of each crushing roller, and the crushing rollers are meshed with each other through gears.

[0009] Furthermore, the automatic material return mechanism is provided with a collection chamber, and the outer side of the collection chamber is fixedly installed at the lower right end of the housing, and the collection chamber is connected to the conveying cylinder.

[0010] Furthermore, a conveying rod is rotatably mounted inside the conveying cylinder, and the upper end of the conveying rod is fixedly connected to the output end of the motor. The outer side of the motor is fixedly mounted on the upper end of the housing, and the outer side of the conveying rod is in contact with the inner wall of the conveying cylinder.

[0011] Furthermore, the left side of the conveying cylinder is connected to a return port, which is installed through the inside of the housing, and the bottom of the housing is inclined.

[0012] Furthermore, the auxiliary feeding mechanism is equipped with a striking plate, and the front and rear ends of the striking plate are slidably connected to the inside of the positioning plate, and vibration springs are provided between the front and rear ends of the striking plate and the housing.

[0013] Furthermore, a wedge is fixedly installed at the lower end of the striking plate, and a cam is correspondingly provided on the wedge, with the right end of the cam installed at the lower end of the conveying rod.

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

[0015] 1. Waste plastic falls into the collection chamber through the inclined bottom of the shell. The collection chamber feeds the plastic into the conveyor cylinder. The motor starts the conveyor rod. Because the conveyor rod is in contact with the inner wall of the conveyor cylinder, the crushed waste plastic is lifted as the conveyor rod rotates until the waste plastic is located at the corresponding return port. The return port is then aligned with the feed port to feed the plastic back in. This achieves an automatic return effect, eliminating the need for manual refeeding. It can automatically perform multiple crushing processes, improving the quality of the crushed plastic.

[0016] Furthermore, during use, waste plastic is added into the housing through the feeding port. The waste plastic inside the housing enters the feeding port, and the crushed plastic falls to the bottom of the housing. If it is necessary to remove the crushed waste plastic, the discharge plate is pulled out to discharge the crushed waste plastic for subsequent PVC granule processing.

[0017] 2. When the conveyor rod rotates, it drives the cam. The rotation of the cam can correspondingly squeeze the inclined block. Due to its inclined shape, when the inclined block is squeezed, it pushes the striking plate upward. The striking plate is pushed upward along the positioning plate to squeeze the vibration spring. The striking plate also strikes the discharge pull plate and the collection chamber position upward, which can assist in feeding and returning materials, avoid blockage, and further improve the efficiency of the waste plastic crushing device for PVC granule processing. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model.

[0019] Figure 2 This is a three-dimensional structural diagram of the present invention viewed from below.

[0020] Figure 3 This is a frontal sectional view of the three-dimensional structure of this utility model.

[0021] Figure 4 This is a top-section three-dimensional structural diagram of the shell of this utility model.

[0022] Figure 5 This is a three-dimensional structural diagram of the right side of the collection cavity of this utility model.

[0023] Figure 6 This is a three-dimensional structural diagram of the auxiliary feeding mechanism of this utility model.

[0024] In the diagram: 1. Shell; 2. Feeding port; 3. Feeding outlet; 4. Crushing roller; 5. Discharge pull plate; 6. Collection chamber; 7. Conveying cylinder; 8. Conveying rod; 9. Return port; 10. Cam; 11. Positioning plate; 12. Striking plate; 13. Inclined block; 14. Vibration spring. Detailed Implementation

[0025] 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.

[0026] Example 1: As Figures 1-5The technical solution shown is an automatic waste plastic crushing device for PVC granule processing. To solve the problem of excessive physical labor in manual material recycling, it discloses: a shell 1 and a feeding port 2 located on the upper left side of the shell 1; a feeding port 3 is fixedly installed on the inner wall of the shell 1; a crushing roller 4 is installed inside the shell 1; a discharge pull plate 5 is nested at the bottom of the shell 1; a conveying cylinder 7 is installed on the right side of the shell 1; an automatic material recycling mechanism is installed inside the conveying cylinder 7; the crushing rollers 4 are arranged alternately, and there are four crushing rollers 4; a drive motor is located at the left end of each crushing roller 4. Furthermore, the crushing rollers 4 are meshed with each other through gears. The automatic return mechanism is provided with a collection chamber 6, and the outer side of the collection chamber 6 is fixedly installed at the lower right end of the housing 1. The collection chamber 6 is connected to the conveying cylinder 7. The conveying rod 8 is rotatably installed inside the conveying cylinder 7, and the upper end of the conveying rod 8 is fixedly connected to the output end of the motor. The outer side of the motor is fixedly installed at the upper end of the housing 1. The outer side of the conveying rod 8 is in contact with the inner wall of the conveying cylinder 7. The left side of the conveying cylinder 7 is connected to a return port 9, and the return port 9 is installed through the inside of the housing 1. The bottom of the housing 1 is inclined.

[0027] In use, waste plastic is added into the housing 1 through the feeding port 2. The waste plastic enters the housing 1 and then enters the feeding port 3. Due to the inclined inner wall of the feeding port 3, it falls onto the surface of the crushing roller 4. Driven by the drive motor, the crushing roller 4 rotates under the meshing of gears to crush the waste plastic. The crushed plastic falls to the bottom of the housing 1. If it is necessary to remove the crushed waste plastic, the discharge plate 5 is pulled out to discharge the crushed waste plastic for subsequent PVC granule processing. It is simple to use. Conversely, if the discharge plate 5 is not pulled out, the waste plastic falls into the collection chamber 6 through the inclined bottom of the housing 1. The collection chamber 6 sends the plastic into the conveying cylinder 7. The motor starts the conveying rod 8. Since the conveying rod 8 is attached to the inner wall of the conveying cylinder 7, the crushed waste plastic is lifted as the conveying rod 8 rotates until the waste plastic is located at the corresponding return port 9. The return port 9 is then aligned with the feeding port 3 to feed the waste plastic again, achieving an automatic return effect without the need for manual refeeding. It can automatically perform multiple crushing processes, improving the quality of the crushed plastic.

[0028] Example 2: Figures 1-6The technical solution shown, based on Embodiment 1, discloses the following to solve the problem of easy clogging: a positioning plate 11 is fixedly installed at the lower end of the housing 1, and an auxiliary feeding mechanism is provided on the inner side of the positioning plate 11. The auxiliary feeding mechanism is provided with a striking plate 12, and the front and rear ends of the striking plate 12 are slidably connected to the inside of the positioning plate 11. A vibration spring 14 is provided between the front and rear ends of the striking plate 12 and the housing 1. An inclined block 13 is fixedly installed at the lower end of the striking plate 12, and a cam 10 is correspondingly provided on the inclined block 13. The right end of the cam 10 is installed at the lower end of the conveying rod 8.

[0029] When the conveyor rod 8 rotates, it drives the cam 10. The rotation of the cam 10 can correspondingly squeeze the inclined block 13. Due to its inclined shape, when the inclined block 13 is squeezed, it pushes the striking plate 12 upward. The striking plate 12 is pushed upward along the positioning plate 11 to squeeze the vibration spring 14. The striking plate 12 also strikes the discharge pull plate 5 and the collection chamber 6 upward, which can assist in feeding and returning materials, avoid blockage, and further improve the efficiency of the waste plastic crushing device for PVC granule processing.

[0030] 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. An automatic recycling PVC granule processing waste plastic crushing device, comprising a shell (1) and a feeding port (2) provided on the upper left side of the shell (1), and a feeding port (3) is fixedly installed on the inner wall of the shell (1), and a crushing roller (4) is provided inside the shell (1), and a discharge pull plate (5) is nested at the bottom of the shell (1); Its features are: A conveying cylinder (7) is installed on the right side of the housing (1), and an automatic material return mechanism is provided inside the conveying cylinder (7); A positioning plate (11) is fixedly installed at the lower end of the housing (1), and an auxiliary feeding mechanism is provided on the inner side of the positioning plate (11).

2. The waste plastic crushing device for automatic PVC granule processing according to claim 1, characterized in that: The crushing rollers (4) are arranged in an alternating manner, and there are four crushing rollers (4). A drive motor is provided at the left end of each crushing roller (4), and the crushing rollers (4) are meshed with each other through gears.

3. The waste plastic crushing device for automatic PVC granule processing according to claim 1, characterized in that: The automatic material return mechanism is provided with a collection chamber (6), and the outer side of the collection chamber (6) is fixedly installed at the lower right end of the housing (1), and the collection chamber (6) is connected to the conveying cylinder (7).

4. The waste plastic crushing device for automatic PVC granule processing according to claim 3, characterized in that: The conveying cylinder (7) is rotatably mounted inside, and the upper end of the conveying rod (8) is fixedly connected to the output end of the motor. The outer side of the motor is fixedly mounted on the upper end of the housing (1), and the outer side of the conveying rod (8) is in contact with the inner wall of the conveying cylinder (7).

5. The waste plastic crushing device for automatic PVC granule processing according to claim 4, characterized in that: The left side of the conveying cylinder (7) is connected to a return port (9), and the return port (9) is installed through the inside of the housing (1), and the bottom of the housing (1) is inclined.

6. The waste plastic crushing device for automatic PVC granule processing according to claim 1, characterized in that: The auxiliary feeding mechanism is provided with a striking plate (12), and the front and rear ends of the striking plate (12) are slidably connected to the inside of the positioning plate (11), and a vibration spring (14) is provided between the front and rear ends of the striking plate (12) and the housing (1).

7. The waste plastic crushing device for automatic PVC granule processing according to claim 6, characterized in that: The lower end of the striking plate (12) is fixedly installed with a wedge (13), and the wedge (13) is provided with a cam (10), and the right end of the cam (10) is installed at the lower end of the conveying rod (8).

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