Splitting machine for nylon plastic particle production

By introducing a feeding mechanism and a water spray cooling system into the slitting machine for nylon plastic granule production, the problems of stable feeding and heat dissipation during the cutting of nylon plastic strips have been solved, achieving high-precision cutting and equipment stability, and reducing the risk of equipment failure.

CN224240066UActive Publication Date: 2026-05-15YANCHENG PLASTIC WEIMEI MATERIAL TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YANCHENG PLASTIC WEIMEI MATERIAL TECHNOLOGY CO LTD
Filing Date
2025-06-16
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

Existing slitting machines for nylon plastic granule production lack intermittent step control during continuous feeding, causing plastic strips to accumulate at the cutting edge or have excessively large gaps, affecting cutting accuracy. Furthermore, the lack of a spray cooling mechanism means that the heat generated by the high-speed friction between the cutting tool and the plastic strip cannot be dissipated in time, leading to overheating, softening, melting, and sticking to the cutting tool.

Method used

The feeding mechanism uses an eccentric rod to drive a swing rod to achieve gradual and precise feeding of nylon plastic strips. The cooling mechanism, consisting of a circulating pump and a nozzle, absorbs the heat from the cutting process, ensuring feeding stability and cutting accuracy, and preventing the plastic strips from overheating, softening, or sticking to the cutting tool.

Benefits of technology

It achieves stable and accurate feeding and cutting of nylon plastic strips, avoids overheating and softening of plastic strips or sticking to the cutting tool, improves cutting accuracy and equipment stability, reduces the risk of equipment failure, and realizes the recycling of water resources.

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Abstract

The utility model belongs to the technical field of nylon plastic particle slitting, and particularly relates to a slitting machine for nylon plastic particle production, which comprises a box body, a semi-barrel is fixedly connected onto the box body, a feed hopper is mounted on the side wall of the semi-barrel, a feeding mechanism is arranged in the feed hopper, and the semi-barrel is provided with a feeding hole. The feeding mechanism comprises a first supporting cross beam and a second supporting cross beam, the first supporting cross beam and the second supporting cross beam are arranged in the feeding hopper, a second motor is installed on the top side of the first supporting cross beam and the top side of the second supporting cross beam, and a rotating disc is installed at the output end of the second motor. When the nylon plastic strip cutting machine is used for cutting nylon plastic strips, the feeding mechanism is arranged, so that the nylon plastic strips can be gradually, accurately and orderly fed, the plastic strips can stably and accurately reach a cutting opening, the stability and the controllability of the feeding process are guaranteed, and the cutting problem caused by non-uniform or inaccurate feeding is reduced.
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Description

Technical Field

[0001] This utility model relates to the field of nylon plastic granule slitting technology, specifically a slitting machine for nylon plastic granule production. Background Technology

[0002] In the production of nylon plastic granules, a slitting machine is needed to cut the continuously extruded nylon plastic strips into granules to meet the raw material requirements of subsequent modification, injection molding and other processes.

[0003] A Chinese patent with announcement number CN219380751U discloses a slitting machine for producing nylon plastic granules. The machine includes a base with a feeding ramp at the top center. The feeding ramp has several grooves equidistantly carved into it. Each groove has several telescopic grooves equidistantly carved into its lower end. A U-shaped frame is mounted between the two sides of the feeding ramp. Inserts that can move up and down are positioned on the U-shaped frame relative to the telescopic grooves and are inserted into the telescopic grooves. This invention has the following advantages: This slitting machine uses multiple inserts in conjunction with the grooves with telescopic grooves to perform staggered compression on the nylon strips, cutting them into multiple sections at once. It eliminates the need for high-speed cutting blades, improving safety during nylon plastic granule production.

[0004] The aforementioned slitting machine for nylon plastic granule production uses a continuous feeding method and lacks intermittent step control, which easily leads to the accumulation of plastic strips at the cutting edge or excessive gaps, affecting cutting accuracy. Furthermore, the existing slitting machine lacks a spray cooling mechanism, resulting in the heat generated by the high-speed friction between the blade and the plastic strip during cutting not being dissipated in time. This causes the local temperature of the plastic strip to exceed the softening point, easily leading to softening, melting, and adhesion to the blade. Therefore, to address the above problems, a slitting machine for nylon plastic granule production is proposed. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology and solve the problems mentioned in the background, this utility model proposes a slitting machine for the production of nylon plastic granules.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A slitting machine for producing nylon plastic granules, comprising a housing, a semi-cylinder fixedly connected to the housing, a feeding hopper installed on the side wall of the semi-cylinder, a feeding mechanism provided inside the feeding hopper, the feeding mechanism including a first support beam and a second support beam, a second motor installed on the top side of the first and second support beams, a rotating disk installed at the output end of the second motor, an eccentric rod fixedly mounted on the rotating disk, a swing rod sleeved on the eccentric rod, a fixed seat hinged to the other end of the swing rod, a fixed frame fixedly connected to the bottom side of the fixed seat, and the fixed frame being disposed on the first and second support beams. Between the beams, a pusher plate is hinged within the fixed frame. Two grooves are formed on the inner wall of the fixed frame, each containing a spring. The other end of each spring is fixed to the pusher plate. When cutting the nylon plastic strip, the second motor is activated, causing the rotating disk to rotate the eccentric rod. The eccentric rod drives the swing rod to swing back and forth, causing the fixed frame to move up or down repeatedly. When the fixed frame moves up, it moves the pusher plate backward; when it moves down, it moves the pusher plate forward, pushing the plastic strip to the cutting edge. This feeding mechanism allows for gradual, precise, and orderly feeding of the nylon plastic strip, ensuring it reaches the cutting edge stably and accurately. This guarantees the stability and controllability of the feeding process and reduces cutting problems caused by uneven or inaccurate feeding.

[0007] Preferably, a first motor is installed on one side wall of the semi-cylinder, the output end of the first motor is connected to a rotating shaft, and the other end of the rotating shaft is rotatably installed on the other side wall. A rotating disk and a rotating frame are respectively fitted on both ends of the rotating shaft, and a cutting blade is installed between the rotating disk and the rotating frame. When cutting the nylon plastic strip, the first motor is started to make the cutting blade rotate. When the cutting blade rotates to pass through the cutting edge, the cutting of the plastic strip can be completed accurately and quickly.

[0008] Preferably, a hollow tube is fixed to the second support beam, and multiple nozzles are connected to the hollow tube. A circulation pump is installed on one side wall of the housing. The inlet of the circulation pump is connected to a water suction pipe, and the other end of the water suction pipe is located inside the housing. A filter cotton is installed inside the port of the water suction pipe. The outlet of the circulation pump is connected to a delivery pipe, and the other end of the delivery pipe is connected to the hollow tube. During the cutting process, to avoid the high temperature generated by the high-speed friction between the blade and the plastic strip, which could easily cause the plastic strip to soften, deform, or stick to the blade due to overheating, a circulation pump is used to prevent this. The ring pump operates by channeling water from the bottom of the chamber into the hollow tube via a delivery pipe, and finally spraying it out through the nozzles. The water sprayed from the nozzles directly contacts the cutting area, quickly absorbing heat through the specific heat capacity of water. This effectively removes the heat from the cutting process, preventing the plastic strip from softening, deforming, or sticking to the blade due to overheating, ensuring a smooth blade surface and guaranteeing subsequent cutting results. At the same time, the water spray washes away fine debris generated during cutting, allowing it to enter the recycling system at the bottom of the chamber with the water flow. This reduces the accumulation of debris in the equipment's gaps, lowers the risk of equipment failure, and facilitates the recycling of water resources.

[0009] Preferably, the bottom side of the semi-cylinder is provided with multiple sieve holes, the box is provided with an inclined filter screen plate, and a discharge port is provided on one side wall of the box. When using the device, by setting the sieve holes, plastic particles that meet the particle size requirements can fall through the sieve holes onto the inclined filter screen plate. By setting the inclined filter screen plate, the plastic particles can be separated from fine impurities. Fine impurities fall to the bottom of the box with the water flowing through the filter holes, and the finished plastic particles will slide down along the inclined filter screen plate and be discharged from the discharge port.

[0010] The advantages of this utility model are:

[0011] 1. When cutting nylon plastic strips, this utility model starts a second motor, causing the rotating disk to drive the eccentric rod to rotate. The eccentric rod drives the swing rod to swing back and forth, and the swing rod drives the fixed frame to move up or down back and forth. When the fixed frame moves up, it drives the pusher plate to move backward. When the fixed frame moves down, it drives the pusher plate to move forward and pushes the plastic strip to the cutting edge. By setting this feeding mechanism, the nylon plastic strip can be fed step by step, accurately and orderly, ensuring that the plastic strip can reach the cutting edge stably and accurately, ensuring the stability and controllability of the feeding process, and reducing cutting problems caused by uneven or inaccurate feeding.

[0012] 2. In the cutting process, to avoid the high temperature generated by high-speed friction between the blade and the plastic strip, which can easily cause the plastic strip to soften, deform, or stick to the blade due to overheating, this utility model uses a circulating pump to spray water from the bottom of the chamber through nozzles. The water sprayed from the nozzles can directly contact the cutting area and quickly absorb heat through the specific heat capacity of water, thus removing the cutting heat in time and preventing the plastic strip from softening, deforming, or sticking to the blade due to overheating. This ensures that the blade surface is flat and smooth, guaranteeing the subsequent cutting effect. At the same time, the water spray can wash away the small debris generated during cutting, allowing it to enter the recycling system at the bottom of the chamber with the water flow, reducing the accumulation of debris in the equipment gaps, lowering the risk of equipment failure, and facilitating the recycling of water resources. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a front-view stereoscopic schematic diagram of the entire device;

[0015] Figure 2 This is a top-down three-dimensional structural diagram of the device;

[0016] Figure 3 This is a first cross-sectional three-dimensional structural diagram of the device.

[0017] Figure 4 This is a schematic diagram of the overall second cross-sectional three-dimensional structure of the device;

[0018] Figure 5 This is a schematic diagram of the three-dimensional structure of the feeding mechanism.

[0019] In the diagram: 1. Box body; 2. Semi-cylinder body; 3. First motor; 4. Rotating shaft; 5. Rotating disc; 6. Rotating frame; 7. Cutting blade; 8. Feed hopper; 9. First support beam; 10. Second support beam; 11. Second motor; 12. Rotating disc; 13. Eccentric rod; 14. Swinging rod; 15. Fixed seat; 16. Fixed frame; 17. Push plate; 18. Spring; 19. Screen hole; 20. Discharge port; 21. Inclined filter screen; 22. Hollow tube; 23. Nozzle; 24. Circulating pump; 25. Water suction pipe; 26. Conveying pipeline. Detailed Implementation

[0020] 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 scope of protection of the present utility model.

[0021] Please see Figure 2-5 As shown, a slitting machine for producing nylon plastic granules includes a housing 1, a semi-cylinder 2 fixedly connected to the housing 1, a first motor 3 mounted on one side wall of the semi-cylinder 2, an output end of the first motor 3 connected to a rotating shaft 4, and the other end of the rotating shaft 4 rotatably mounted on the other side wall. A rotating disc 5 and a rotating frame 6 are respectively fitted onto both ends of the rotating shaft 4, and a cutting blade 7 is installed between the rotating disc 5 and the rotating frame 6. A feed hopper 8 is mounted on the side wall of the semi-cylinder 2, and a feeding mechanism is provided inside the feed hopper 8. The feeding mechanism includes a first... A first support beam 9 and a second support beam 10 are provided inside the feed hopper 8. A second motor 11 is installed on the top side of the first support beam 9 and the second support beam 10. A rotating disk 12 is installed at the output end of the second motor 11. An eccentric rod 13 is fixed on the rotating disk 12. A swing rod 14 is sleeved on the eccentric rod 13. The other end of the swing rod 14 is hinged to a fixed seat 15. A fixed frame 16 is fixed to the bottom side of the fixed seat 15, and the fixed frame 16 is located on the first support beam 9. Between the second support beam 10, a pusher plate 17 is hinged inside the fixed frame 16. Two grooves are formed on the inner wall of the fixed frame 16, each containing a spring 18. The other end of each spring 18 is fixed to the pusher plate 17. During operation, when cutting nylon plastic strips, the nylon plastic strip to be cut is placed into the feed hopper 8. The second motor 11 is started, causing the rotating disk 12 to drive the eccentric rod 13 to rotate. The eccentric rod 13 drives the swing rod 14 to swing back and forth, and the swing rod 14 drives the fixed frame 16 to... The material moves up and down repeatedly within the limiting groove formed between the first support beam 9 and the second support beam 10. When the fixed frame 16 moves up, it drives the pusher plate 17 to move backward. When the fixed frame 16 moves down, it drives the pusher plate 17 to move forward and pushes the plastic strip to the cutting edge. By setting this feeding mechanism, the nylon plastic strip can be fed step by step, accurately and orderly, ensuring that the plastic strip can reach the cutting edge stably and accurately, ensuring the stability and controllability of the feeding process, and reducing cutting problems caused by uneven or inaccurate feeding.

[0022] When cutting nylon plastic strips, the first motor 3 is started, causing the rotating shaft 4 to rotate, which in turn drives the rotating disc 5, rotating frame 6 and cutting blade 7 to rotate. When the cutting blade 7 rotates to pass through the cutting opening, it can accurately and quickly complete the cutting of the plastic strip, causing the cut plastic particles to fall to the bottom of the half cylinder 2. Plastic particles that meet the particle size requirements fall through the sieve hole 19 onto the inclined filter screen 21, and slide down along the inclined filter screen 21 and are discharged from the discharge port 20.

[0023] Please see Figure 1 , Figure 3 and Figure 5 As shown, a hollow tube 22 is fixedly connected to the second support beam 10, and multiple nozzles 23 are connected to the hollow tube 22. A circulation pump 24 is installed on one side wall of the housing 1. The input port of the circulation pump 24 is connected to a water suction pipe 25, and the other end of the water suction pipe 25 is located inside the housing 1. A filter cotton is installed inside the port of the water suction pipe 25. The output port of the circulation pump 24 is connected to a delivery pipe 26, and the other end of the delivery pipe 26 is connected to the hollow tube 22. During operation, in order to avoid the high temperature generated by the high-speed friction between the blade and the plastic strip, which could easily cause the plastic strip to soften, deform, or stick to the blade due to overheating, the circulation pump 24... The process involves drawing water from the bottom of the housing 1 through the pumping pipe 25 and then flowing into the hollow tube 22 through the conveying pipe 26. Finally, the water is sprayed out through the nozzle 23. The water sprayed from the nozzle 23 can directly contact the cutting area and quickly absorb heat through the specific heat capacity of water. This allows the cutting heat to be carried away in time, preventing the plastic strip from softening, deforming, or sticking to the blade due to overheating. This ensures that the blade surface is flat and smooth, guaranteeing the subsequent cutting effect. At the same time, the water spray can wash away the small debris generated during cutting, allowing it to enter the recycling system at the bottom of the housing 1 with the water flow. This reduces the accumulation of debris in the gaps of the equipment, lowers the risk of equipment failure, and facilitates the recycling of water resources.

[0024] The bottom side of the semi-cylinder 2 is provided with multiple sieve holes 19, the box 1 is provided with an inclined filter screen 21, and a discharge port 20 is provided on one side wall of the box 1. When the device is in operation, by setting the inclined filter screen 21, the plastic particles can be separated from the fine impurities. The fine impurities fall to the bottom of the box 1 with the flow of water through the filter holes, and the finished plastic particles will slide down along the inclined filter screen 21 and be discharged from the discharge port 20.

[0025] Working Principle: The existing slitting machine for nylon plastic granule production uses a continuous feeding method and lacks intermittent stepping control, which easily leads to the accumulation of plastic strips at the cutting edge or excessive gaps, affecting cutting accuracy. Furthermore, the existing slitting machine lacks a spray cooling mechanism, causing the heat generated by the high-speed friction between the blade and the plastic strip during cutting to be unable to dissipate in time. This results in the local temperature of the plastic strip exceeding its softening point, easily leading to softening, melting, and adhesion to the blade. Therefore, to address these problems, a slitting machine for nylon plastic granule production is proposed. When cutting nylon plastic strips, the nylon plastic strip to be cut is placed into the feed hopper 8, and the second motor 11 is started, causing the rotating disk 1... 2. The eccentric rod 13 is rotated, and the eccentric rod 13 drives the swing rod 14 to swing back and forth. The swing rod 14 drives the fixed frame 16 to move up or down in the limiting groove formed between the first support beam 9 and the second support beam 10. When the fixed frame 16 moves up, it drives the pusher plate 17 to move backward. When the fixed frame 16 moves down, it drives the pusher plate 17 to move forward and pushes the plastic strip to the cutting edge. By setting this feeding mechanism, the nylon plastic strip can be fed step by step, accurately and orderly, ensuring that the plastic strip can reach the cutting edge stably and accurately, ensuring the stability and controllability of the feeding process, and reducing cutting problems caused by uneven or inaccurate feeding.

[0026] When cutting nylon plastic strips, the first motor 3 is started, causing the rotating shaft 4 to rotate, which in turn drives the rotating disc 5, rotating frame 6 and cutting blade 7 to rotate. When the cutting blade 7 rotates to pass through the cutting opening, it can accurately and quickly complete the cutting of the plastic strip, causing the cut plastic particles to fall to the bottom of the half cylinder 2. Plastic particles that meet the particle size requirements fall through the sieve hole 19 onto the inclined filter screen 21, and slide down along the inclined filter screen 21 and are discharged from the discharge port 20.

[0027] During the cutting process, to avoid the high temperature generated by the high-speed friction between the blade and the plastic strip, which could easily cause the plastic strip to soften, deform, or stick to the blade due to overheating, the circulating pump 24 operates to draw water from the bottom of the housing 1 through the water extraction pipe 25 and into the hollow pipe 22 through the delivery pipe 26. Finally, the water is sprayed out through the nozzle 23. The water sprayed from the nozzle 23 can directly contact the cutting area and quickly absorb heat through the specific heat capacity of water, thereby removing the cutting heat in time and preventing the plastic strip from softening, deforming, or sticking to the blade due to overheating. This ensures that the blade surface is flat and smooth, guaranteeing the subsequent cutting effect. At the same time, the water spray can wash away the small debris generated during cutting, allowing it to enter the recycling system at the bottom of the housing 1 with the water flow, reducing the accumulation of debris in the equipment gaps, reducing the risk of equipment failure, and facilitating the recycling of water resources.

[0028] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A slitting machine for producing nylon plastic granules, characterized in that: The device includes a housing (1), on which a semi-cylindrical body (2) is fixedly attached. A first motor (3) is installed on one side wall of the semi-cylindrical body (2). The output end of the first motor (3) is connected to a rotating shaft (4), and the other end of the rotating shaft (4) is rotatably mounted on another side wall. A rotating disc (5) and a rotating frame (6) are respectively fitted on both ends of the rotating shaft (4). A cutting blade (7) is installed between the rotating disc (5) and the rotating frame (6). A feeding hopper (8) is installed on the side wall of the semi-cylindrical body (2), and a feeding device is provided inside the feeding hopper (8). The feeding mechanism includes a first support beam (9) and a second support beam (10). The first support beam (9) and the second support beam (10) are provided inside the feeding hopper (8). A second motor (11) is installed on the top side of the first support beam (9) and the second support beam (10). A rotating disk (12) is installed at the output end of the second motor (11). An eccentric rod (13) is fixed on the rotating disk (12). A swing rod (14) is sleeved on the eccentric rod (13). A fixed seat (15) is hinged to the other end of the swing rod (14).

2. The slitting machine for producing nylon plastic granules according to claim 1, characterized in that: A fixed frame (16) is fixedly connected to the bottom side of the fixed base (15), and the fixed frame (16) is located between the first support beam (9) and the second support beam (10). A pusher plate (17) is hinged inside the fixed frame (16). Two grooves are opened on the inner wall of the fixed frame (16), and a spring (18) is provided in each of the two grooves. The other end of the spring (18) is fixedly connected to the pusher plate (17).

3. The slitting machine for producing nylon plastic granules according to claim 1, characterized in that: A hollow tube (22) is fixedly connected to the second support beam (10), and multiple nozzles (23) are connected to the hollow tube (22). A circulating pump (24) is installed on one side wall of the box (1).

4. A slitting machine for producing nylon plastic granules according to claim 3, characterized in that: The inlet of the circulating pump (24) is connected to a water pump pipe (25), and the other end of the water pump pipe (25) is located inside the housing (1). A filter cotton is installed inside the port of the water pump pipe (25).

5. A slitting machine for producing nylon plastic granules according to claim 3, characterized in that: The output port of the circulating pump (24) is connected to a conveying pipe (26), and the other end of the conveying pipe (26) is connected to a hollow pipe (22).

6. A slitting machine for producing nylon plastic granules according to claim 1, characterized in that: The bottom side of the semi-cylinder (2) is provided with multiple sieve holes (19), the box (1) is provided with an inclined filter screen plate (21), and a discharge port (20) is provided on one side wall of the box (1).