Constant-pressure pelletizing device for intelligent waste plastic production line
The constant pressure pelletizing device for waste plastic production lines, designed with intelligent features, adopts a motor-driven clamping plate and gear structure, which solves the problems of equipment corrosion and inconvenience of manual addition, realizes automated pelletizing and automatic addition, and improves operating efficiency and convenience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHANGJIAGANG HUIXING MASCH CO LTD
- Filing Date
- 2025-05-22
- Publication Date
- 2026-04-17
AI Technical Summary
Existing waste plastic recycling equipment is prone to corrosion during long-term use and requires frequent manual addition of waste plastic, making operation inconvenient.
Design an intelligent constant pressure pelletizing device for waste plastic production line. It adopts a motor-driven clamping plate and gear structure to realize automated pelletizing and automatic addition of waste plastic, and the extrusion cylinder can be easily disassembled.
It enables automated pelletizing and automatic addition of waste plastics, reducing the risk of equipment corrosion and improving operational efficiency and convenience.
Smart Images

Figure CN224130207U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of waste plastic pelletizing technology, specifically a constant pressure pelletizing device for an intelligent waste plastic production line. Background Technology
[0002] The constant pressure pelletizing device for intelligent waste plastic production lines is a device specifically designed for waste plastic recycling. Its main function is to cut softened waste plastic into pellets of a fixed size, thereby improving recycling efficiency.
[0003] Existing technology disclosure number CN217123636U discloses a constant pressure pelletizing device for waste plastic recycling, belonging to the field of waste plastic recycling technology. It includes a workbench, with a pelletizing mechanism on the lower surface of the workbench. The pelletizing mechanism includes an extrusion cylinder, which is fixedly connected to the lower surface of the workbench. A heating wire is provided on the inner bottom wall of the extrusion cylinder. A motor is fixedly installed on the lower surface of the extrusion cylinder, and a spiral blade is fixedly installed on the output shaft of the motor. A feed inlet is fixedly installed on the surface of the extrusion cylinder, and a discharge outlet is opened on the surface of the workbench, communicating with the interior of the extrusion cylinder. A hydraulic component is fixedly installed on the surface of the workbench, and a connecting rod is provided inside the hydraulic component. The connecting rod is movably connected to the hydraulic component, and a cutter is fixedly installed at the end of the connecting rod away from the hydraulic component. This device can soften waste plastic and cut it into fixed sizes, thereby improving the efficiency of waste plastic recycling.
[0004] While the above-mentioned methods have certain advantages in improving the efficiency of waste plastic recycling, they still have certain drawbacks.
[0005] 1. During prolonged use, waste plastics inevitably produce some harmful substances during the heating and softening process. When these harmful substances come into contact with the equipment, they can cause corrosion, making it impossible to replace the equipment quickly.
[0006] 2. Moreover, it requires frequent manual addition of waste plastic during use, making the operation relatively troublesome. Utility Model Content
[0007] Therefore, in order to overcome the above-mentioned shortcomings, this utility model provides a constant pressure pelletizing device for an intelligent waste plastic production line.
[0008] This utility model is implemented as follows: a constant pressure pelletizing device for an intelligent waste plastic production line is constructed. The device includes a U-shaped base with symmetrical internal arrangement at the left and right ends of the U-shaped base, an extrusion cylinder installed on the inner side of the upper end of the U-shaped base, a triangular support plate fixedly connected to the lower end face of the extrusion cylinder for support, a storage box fixedly connected to the upper end face of the extrusion cylinder for placing and storing waste plastic, reserved openings on the left and right end faces of the storage box, a discharge port opened on the left side of the outer side of the extrusion cylinder, a circular partition fixedly connected to the inner side of the discharge port, and a discharge port opened at the center of the circular partition for discharging material.
[0009] It also includes a first clamping plate rotatably connected to the center of the left end face of the extrusion cylinder, a second clamping plate rotatably connected to the center of the right end face of the extrusion cylinder, a third gear rotatably connected to the left side inside the extrusion cylinder, and the third gear is fixedly connected to the first clamping plate. A fourth gear is meshed on the third gear, a second connecting rod is fixedly connected to the center of the right end face of the fourth gear, and a heating chamber is provided at the center of the inner side of the extrusion cylinder, with a heating wire for heating provided on the inner side of the heating chamber.
[0010] Preferably, an F-shaped push plate is slidably connected to the right end of the inner side of the heating chamber. A screw is threaded into the right end face of the F-shaped push plate, and the screw is rotatably connected to the extrusion cylinder and fixedly connected to the second clamping plate. A fifth gear is fixedly connected to the end of the second connecting rod away from the fourth gear. A ring gear is rotatably connected inside the circular partition. Four first semi-circular protrusions are fixedly connected to the inner side of the ring gear. A cutter is slidably connected to the upper and lower end faces of the inner side of the discharge port. A second semi-circular protrusion is fixedly connected to the upper end face of the cutter. A spring for resetting is provided on the rear end face of the second semi-circular protrusion.
[0011] Preferably, two circular plates are rotatably connected to the left and right end faces of the inner side of the U-shaped base. The two circular plates are provided with slots. A second gear is rotatably connected to the inside of the left side of the U-shaped base, and the second gear is fixedly connected to the circular plates. A track plate is fixedly connected to the inside of the left side of the U-shaped base. A double-sided toothed plate is slidably connected to the track plate, and the upper end of the double-sided toothed plate meshes with the second gear. A frame plate is fixedly connected to the front end face of the double-sided toothed plate.
[0012] Preferably, a first gear is rotatably connected to the left side of the U-shaped base, and the first gear meshes with the lower end of the double-sided toothed plate.
[0013] Preferably, a first connecting rod for transmission is fixedly connected to the rear end face of the first gear, and a slider is slidably connected to the inner side of the frame plate.
[0014] Preferably, the front end face of the slider is rotatably connected to a connecting plate, the left side of the U-shaped base is fixedly connected to a motor, the output end of the motor is fixedly connected to a connecting column, and the rear end face of the connecting column is fixedly connected to the connecting plate.
[0015] This utility model has the following advantages: This utility model provides an intelligent constant pressure pelletizing device for waste plastic production lines, which, compared with similar equipment, has the following improvements:
[0016] This utility model describes an intelligent constant pressure pelletizing device for a waste plastic production line. During operation, the motor drives the connecting plate to rotate, which in turn drives the double-sided toothed plate to move back and forth via the frame plate. This, in turn, drives the first and second clamping plates to rotate, causing the F-type push plate to extrude the waste plastic towards the discharge port. Simultaneously, the cutter moves to pelletize the waste plastic. Due to gravity, when the amount of waste plastic inside the heating chamber decreases, it automatically falls back into the heating chamber, eliminating the need for repeated replenishment. When the extrusion cylinder needs to be disassembled and removed, the clamps are adjusted to be perpendicular to the ground, and the cylinder can be lifted and removed by inserting a finger into the pre-drilled opening. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the extrusion cylinder structure of this utility model;
[0019] Figure 3 This is a plan view of the extrusion cylinder structure of this utility model;
[0020] Figure 4 This is a plan view of the circular partition structure of this utility model;
[0021] Figure 5 This is a schematic diagram of the connection of the double-sided toothed plate structure of this utility model.
[0022] The components include: U-shaped base-1, extrusion cylinder-2, triangular support plate-3, storage box-4, reserved opening-5, discharge port-6, circular partition-7, discharge port-8, first clamping plate-9, second clamping plate-10, third gear-11, fourth gear-12, second connecting rod-13, heating chamber-14, heating wire-15, F-type push plate-16, screw-17, fifth gear-18, ring gear-19, first semi-circular protrusion-20, cutter-21, second semi-circular protrusion-22, spring-23, circular plate-24, bayonet-25, second gear-26, track plate-27, double-sided toothed plate-28, frame plate-29, first gear-30, first connecting rod-301, slider-31, connecting plate-32, motor-33, and connecting column-34. Detailed Implementation
[0023] The following is in conjunction with the appendix Figures 1-5 The principles and features of this utility model are described below. The examples given are for illustrative purposes only and are not intended to limit the scope of this utility model. The utility model is described more specifically in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of this utility model will become clearer from the following description and claims. It should be noted that the drawings are in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this utility model.
[0024] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.
[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0026] Example 1:
[0027] Please see Figures 1-5This utility model discloses an intelligent constant pressure pelletizing device for a waste plastic production line, comprising a U-shaped base 1 with symmetrical internal arrangement at both ends of the U-shaped base 1, an extrusion cylinder 2 installed on the inner side of the upper end of the U-shaped base 1, a triangular support plate 3 fixedly connected to the lower end face of the extrusion cylinder 2 for support, a storage box 4 fixedly connected to the upper end face of the extrusion cylinder 2 for placing and storing waste plastic, reserved openings 5 on the left and right end faces of the storage box 4, a discharge port 6 on the left side of the outer side of the extrusion cylinder 2, a circular partition 7 fixedly connected to the inner side of the discharge port 6, a discharge port 8 at the center of the circular partition 7 for discharging material, a first clamping plate 9 rotatably connected to the center of the left end face of the extrusion cylinder 2, and a second clamping plate 9 rotatably connected to the center of the right end face of the extrusion cylinder 2. The second clamping plate 10 and the extrusion cylinder 2 are rotatably connected to the left side of the extrusion cylinder 2. The third gear 11 is fixedly connected to the first clamping plate 9. The third gear 11 is meshed with the fourth gear 12. The center of the right end face of the fourth gear 12 is fixedly connected to the second connecting rod 13. The center of the inner side of the extrusion cylinder 2 is provided with a heating chamber 14. The heating chamber 14 and the bottom of the inner side of the storage box 4 are connected through an opening. The inner side of the heating chamber 14 is provided with a heating wire 15 for heating. The right end of the inner side of the heating chamber 14 is slidably connected to an F-type push plate 16. The right end face of the F-type push plate 16 is threaded with a screw 17. The screw 17 is rotatably connected to the extrusion cylinder 2 and fixedly connected to the second clamping plate 10.
[0028] The second connecting rod 13 is fixedly connected to the fifth gear 18 at the end away from the fourth gear 12. A ring gear 19 is rotatably connected inside the circular partition 7. Four first semi-circular protrusions 20 are fixedly connected to the inner side of the ring gear 19. A cutter 21 is slidably connected to the upper and lower ends of the inner side of the discharge port 8. A second semi-circular protrusion 22 is fixedly connected to the upper end of the cutter 21. A spring 23 for resetting is provided on the rear end face of the second semi-circular protrusion 22. Two circular plates 24 are rotatably connected to the left and right ends of the inner side of the U-shaped base 1. The two circular plates 24 have slots 25, and the first slot 9 and the second slot 10 respectively engage with the inner sides of the two slots 25 to drive the circular plates 24 to rotate. A second gear 26 is rotatably connected inside the left side of the U-shaped base 1, and the second gear 26 is connected to the circular plates 24. The U-shaped base 1 is fixedly connected to the left side of a track plate 27. A double-sided toothed plate 28 is slidably connected to the track plate 27, and the upper end of the double-sided toothed plate 28 meshes with the second gear 26. A frame plate 29 is fixedly connected to the front end of the double-sided toothed plate 28. A first gear 30 is rotatably connected to the left side of the U-shaped base 1, and the first gear 30 meshes with the lower end of the double-sided toothed plate 28. A first connecting rod 301 for transmission is fixedly connected to the rear end of the first gear 30. A slider 31 is slidably connected to the inner side of the frame plate 29. A connecting plate 32 is rotatably connected to the front end of the slider 31. A motor 33 is fixedly connected to the left side of the U-shaped base 1. A connecting column 34 is fixedly connected to the output end of the motor 33. The rear end of the connecting column 34 is fixedly connected to the connecting plate 32.
[0029] The working principle of a constant pressure pelletizing device for an intelligent waste plastic production line based on Example 1 is as follows:
[0030] First, when using the equipment, connect it to an external power source to provide the required power. Pour the waste plastic that needs to be pelletized into the storage box 4 and into the heating chamber 14. Then turn on the heating wire 15 to heat the waste plastic inside the heating chamber 14 to soften it.
[0031] Second, after completion, the motor 33 is turned on and drives the connecting plate 32 to rotate through the connecting column 34. While driving the slider 31 to move, it slides inside the frame plate 29. In turn, it drives the frame plate 29 to move back and forth. While driving the double-sided toothed plate 28 to move, it also drives the second gear 26, the first gear 30, and the first connecting rod 301 to rotate. When the second gear 26 rotates, it drives the circular plate 24 to rotate through the bayonet 25, driving the first clamping plate 9 and the second clamping plate 10 to rotate.
[0032] Third, when the first clamping plate 9 rotates, it drives the third gear 11 to rotate, which in turn drives the fourth gear 12 to rotate through the second connecting rod 13, which in turn drives the ring gear 19 to move the first semi-circular protrusion 20. The first semi-circular protrusion 20 intermittently contacts the second semi-circular protrusion 22, which simultaneously squeezes and pushes the second semi-circular protrusion 22 to move the cutter 21. The spring 23 is stretched by force. At the same time, when the second clamping plate 10 rotates, it drives the screw 17 to rotate, which in turn drives the F-type push plate 16 to move, pushing the softened waste plastic inside the heating chamber 14 to be extruded into the discharge port 8. Simultaneously, the movement of the cutter 21 can achieve pelletizing. Due to gravity, when the waste plastic inside the heating chamber 14 decreases, the waste plastic inside the storage box 4 will also fall into the heating chamber 14 for automatic replenishment. At the same time, when it is necessary to disassemble and remove the extrusion cylinder 2, simply adjust the clamp 25 to be perpendicular to the ground, and insert your finger into the reserved opening 5 to lift and remove the extrusion cylinder 2.
[0033] This utility model provides an improved intelligent constant pressure pelletizing device for waste plastic production lines. In use, the motor 33 drives the connecting plate 32 to rotate, while the frame plate 29 drives the double-sided toothed plate 28 to move back and forth. This, in turn, drives the first clamping plate 9 and the second clamping plate 10 to rotate, causing the F-type push plate 16 to extrude the waste plastic into the discharge port 8. At the same time, the cutter 21 moves to pelletize the waste plastic. Due to gravity, when the amount of waste plastic inside the heating chamber 14 decreases, the waste plastic will automatically fall into the heating chamber 14 without the need for repeated replenishment. When it is necessary to disassemble and remove the extrusion cylinder 2, the clamping slot 25 is adjusted to be perpendicular to the ground, and the extrusion cylinder 2 can be lifted and removed by inserting a finger into the reserved opening 5.
[0034] The above describes the basic principles, main features, and advantages of this utility model. All standard parts used in this utility model can be purchased from the market, and irregularly shaped parts can be customized according to the description and drawings. The specific connection methods for each part all adopt conventional methods such as bolts, rivets, and welding, which are mature technologies in the prior art. The machinery, parts, and equipment all adopt conventional models in the prior art, and the circuit connections adopt conventional connection methods in the prior art, which will not be detailed here.
[0035] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A constant pressure pelletizing device for an intelligent waste plastic production line, comprising a U-shaped base (1), wherein the left and right ends of the U-shaped base (1) are symmetrically arranged, an extrusion cylinder (2) is installed on the inner side of the upper end of the U-shaped base (1), a triangular support plate (3) is fixedly connected to the lower end face of the extrusion cylinder (2) for support, a storage box (4) is fixedly connected to the upper end face of the extrusion cylinder (2) for storing waste plastic, reserved openings (5) are opened on the left and right end faces of the storage box (4), a discharge port (6) is opened on the left side of the outer side of the extrusion cylinder (2), a circular partition (7) is fixedly connected to the inner side of the discharge port (6), and a discharge port (8) is opened in the center of the circular partition (7) for discharging material; characterized in that The left end face of the extrusion cylinder (2) is rotatably connected to a first clamping plate (9), the right end face of the extrusion cylinder (2) is rotatably connected to a second clamping plate (10), the left side of the inside of the extrusion cylinder (2) is rotatably connected to a third gear (11), and the third gear (11) is fixedly connected to the first clamping plate (9). A fourth gear (12) is meshed on the third gear (11), and a second connecting rod (13) is fixedly connected to the center of the right end face of the fourth gear (12). A heating chamber (14) is provided in the center of the inner side of the extrusion cylinder (2), and a heating wire (15) for heating is provided on the inner side of the heating chamber (14).
2. The constant pressure pelletizing device for intelligent waste plastic production line according to claim 1, characterized in that, An F-type push plate (16) is slidably connected to the right end of the inner side of the heating chamber (14). A screw (17) is threaded into the right end face of the F-type push plate (16). The screw (17) is rotatably connected to the extrusion cylinder (2) and fixedly connected to the second clamping plate (10). A fifth gear (18) is fixedly connected to the end of the second connecting rod (13) away from the fourth gear (12). A ring gear (19) is rotatably connected inside the circular partition (7). Four first semi-circular protrusions (20) are fixedly connected to the inner side of the ring gear (19). A cutter (21) is slidably connected to the upper and lower end faces of the inner side of the discharge port (8). A second semi-circular protrusion (22) is fixedly connected to the upper end face of the cutter (21). A spring (23) for resetting is provided on the rear end face of the second semi-circular protrusion (22).
3. The intelligent constant pressure pelletizing device for a waste plastic production line according to claim 2, characterized in that, The U-shaped base (1) has two circular plates (24) rotatably connected to its left and right inner ends. The two circular plates (24) have slots (25). The U-shaped base (1) has a second gear (26) rotatably connected to its left inner side. The second gear (26) is fixedly connected to the circular plates (24). The U-shaped base (1) has a track plate (27) fixedly connected to its left inner side. The track plate (27) has a double-sided toothed plate (28) slidably connected to it. The upper end of the double-sided toothed plate (28) meshes with the second gear (26). The front end of the double-sided toothed plate (28) is fixedly connected to a frame plate (29).
4. The intelligent constant pressure pelletizing device for a waste plastic production line according to claim 3, characterized in that, The U-shaped base (1) has a first gear (30) rotatably connected to the left side, and the first gear (30) meshes with the lower end of the double-sided toothed plate (28).
5. The intelligent constant pressure pelletizing device for a waste plastic production line according to claim 4, characterized in that, The rear end face of the first gear (30) is fixedly connected to a first connecting rod (301) for transmission, and a slider (31) is slidably connected to the inner side of the frame plate (29).
6. The intelligent constant pressure pelletizing device for a waste plastic production line according to claim 5, characterized in that, The front end of the slider (31) is rotatably connected to a connecting plate (32), and the inside of the left side of the U-shaped base (1) is fixedly connected to a motor (33). The output end of the motor (33) is fixedly connected to a connecting column (34), and the rear end of the connecting column (34) is fixedly connected to the connecting plate (32).
Citation Information
Patent Citations
Constant-pressure pelletizing device for waste plastic recovery
CN217123636U