Traction edge trimmer for plastic products

Abstract

The embodiment of the utility model provides a traction edge trimmer for plastic products. The traction edge trimmer comprises a conveying belt; a cutting blade; the cooling nozzle is mounted close to the lower part of the trimming cutter; the nozzle bracket is used for fixing and adjusting the position of the cooling nozzle; the material collecting frame is located at the tail end of the conveying belt and used for collecting the cut plastic products; wherein the cutting blade is provided with a plurality of sawtooth-shaped cutting edges, the sawtooth-shaped cutting edges are arranged in a staggered mode, a flow guide groove is formed between every two adjacent cutting edges and used for guiding heat and chippings generated in the cutting process, the depth of each flow guide groove is gradually changed, and the depth of each flow guide groove is gradually increased from the edge of the cutting blade to the center of the cutting blade. And the top height of one part of the saw-tooth-shaped cutting edges of the cutting blade is greater than that of the other part of the saw-tooth-shaped cutting edges of the cutting blade. Through the scheme of the embodiment of the invention, the problem that the cutting precision and the surface quality are influenced due to local overheating and softening of plastics in a high-temperature environment caused by non-uniform heat distribution of a cooling system of the edge trimmer can be solved.

Description

Technical Field

[0001] This application relates to the field of plastic product processing technology, specifically to a traction trimming machine for plastic products. Background Technology

[0002] A traction trimming machine for plastic products is a specialized device for cutting the edges of plastic products. It uses a traction device to smoothly feed the plastic part into the trimming unit, ensuring the quality and precision of the cut. However, this trimming machine has a technical problem: uneven heat distribution in the cooling system causes localized overheating and softening of the plastic under high temperatures. This not only affects the cutting accuracy but also reduces the surface quality of the product. Therefore, this problem requires special attention and resolution in practical applications. Summary of the Invention

[0003] In view of this, the present disclosure provides a traction trimming machine for plastic products, which at least partially solves the problems existing in the prior art.

[0004] This application discloses a traction trimming machine for plastic products, comprising:

[0005] Conveyor belts are used to transport plastic products to be cut.

[0006] Cutting blades, mounted above the conveyor belt, are used to cut plastic products;

[0007] Cooling nozzles are installed close to the bottom of the cutting blade to spray cooling medium to prevent localized overheating of the plastic product;

[0008] Nozzle bracket, used to fix and adjust the position of the cooling nozzles;

[0009] The receiving rack, located at the end of the conveyor belt, is used to collect cut plastic products; among which...

[0010] The cutting blade has multiple serrated edges arranged in an alternating pattern. A guide groove is provided between each edge to guide heat and debris generated during cutting. The depth of the guide groove gradually changes, increasing from the edge of the cutting blade towards the center.

[0011] The top of one portion of the serrated cutting edge of the cutting blade is higher than the top of the other portion.

[0012] Preferably, the conveyor belt has a multi-layer structure, including an upper smooth conveying surface and a lower wear-resistant and anti-slip layer, and baffles are provided on both sides of the conveyor belt.

[0013] Preferably, the cutting blade is a disc-shaped blade.

[0014] Preferably, the cutting blade is fixed to the frame by an adjustable support arm, the support arm of which can adjust the height of the cutting blade in the vertical direction.

[0015] Preferably, the cooling nozzle is a multi-nozzle design, and each nozzle can independently adjust the spray angle and flow rate.

[0016] Preferably, a temperature sensor is provided between the multiple nozzles of the cooling nozzle.

[0017] Preferably, the nozzle support includes a telescopic support rod and a universal adjustment mechanism to adjust the position and angle of the cooling nozzle, and the universal adjustment mechanism adopts a multi-axis linkage system.

[0018] Preferably, the receiving rack is provided with a multi-level buffer structure, each level of the buffer structure including a buffer pad and an adjustable support rod.

[0019] This disclosure provides a traction trimming machine for plastic products, comprising: a conveyor belt for conveying plastic products to be cut; a cutting blade mounted above the conveyor belt for cutting the plastic products; a cooling nozzle mounted near the lower part of the cutting blade for spraying a cooling medium to prevent local overheating of the plastic products; a nozzle bracket for fixing and adjusting the position of the cooling nozzle; and a receiving rack located at the end of the conveyor belt for collecting the cut plastic products. The cutting blade has multiple serrated cutting edges arranged alternately, with a guide groove between each edge to guide heat and debris generated during cutting. The depth of the guide groove gradually changes, increasing from the edge of the cutting blade towards the center. Furthermore, the top height of some of the serrated cutting edges is higher than that of others. This solution addresses the problem of uneven heat distribution in the trimming machine's cooling system, which causes localized overheating and softening of the plastic at high temperatures, thus affecting cutting accuracy and surface quality. Attached Figure Description

[0020] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the various drawings denote the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings depict only some embodiments disclosed in this application and should not be construed as limiting the scope of this application.

[0021] Figure 1 This is a schematic diagram of the structure of the traction trimming machine for plastic products according to this utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the cutting blade of this utility model;

[0023] Figure 3This is a schematic diagram of the structure of the cooling nozzle of this utility model.

[0024] In the diagram: 1. Conveyor belt; 2. Cutting blade; 3. Cooling nozzle; 4. Nozzle support; 5. Receiving rack; 6. Baffle; 7. Support arm; 8. Flow guide; 9. Temperature sensor; 10. Controller; 11. Buffer pad; 12. Adjustable support rod Detailed Implementation

[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0026] like Figure 1 As shown, a traction trimming machine for plastic products according to this application includes a conveyor belt 1, a cutting blade 2, a cooling nozzle 3, a nozzle support 4, and a receiving rack 5. The overall design of this trimming machine aims to improve the cutting accuracy and surface quality of plastic products, while effectively controlling the temperature during the cutting process to prevent local overheating and softening of the plastic.

[0027] First, conveyor belt 1 is used to smoothly transport the plastic products to be cut. Conveyor belt 1 is typically made of wear-resistant and high-temperature-resistant materials, and its surface has a good coefficient of friction to ensure the stability of the plastic products during transport. The design of conveyor belt 1 allows plastic products of different shapes and sizes to move smoothly and at a controllable speed, thereby ensuring the continuity and reliability of the cutting operation.

[0028] Secondly, the cutting blade 2 is mounted above the conveyor belt 1 for precise cutting of plastic products. The cutting blade 2 is typically made of high-hardness alloy steel or ceramic materials, and undergoes precision machining and surface treatment to ensure smooth and sharp cutting edges. The angle and position of the cutting blade 2 are adjustable to accommodate plastic products of different thicknesses and materials, thus meeting diverse cutting needs.

[0029] The cooling nozzle 3 is located near the cutting blade 2 and is used to spray a cooling medium to prevent the plastic product from softening due to localized overheating during the cutting process. The cooling medium can be water, cooling oil, or other suitable liquids. The spray direction and angle are carefully designed to ensure that the cooling medium can evenly cover the cutting area. The position of the cooling nozzle 3 can be adjusted according to actual cutting needs to adapt to different process requirements.

[0030] The nozzle holder 4 fixes and adjusts the position of the cooling nozzle 3 to ensure uniform spraying of the cooling medium. The nozzle holder 4 is typically made of high-strength material, offering good stability and adjustment flexibility. The holder's design allows for precise adjustment of the cooling nozzle 3 at different angles and positions, ensuring that the cooling medium effectively covers the cutting area and improves cooling efficiency.

[0031] Finally, the receiving rack 5 is located at the end of the conveyor belt 1 and is used to collect the cut plastic products. The receiving rack 5 typically has adjustable height and width to accommodate different types and sizes of plastic products. The design of the receiving rack 5 also takes safety into consideration, ensuring that the cut plastic products are placed stably to avoid product damage due to falling or collision.

[0032] Specifically, the conveyor belt 1 achieves smooth movement via a drive motor and roller system, and its speed and tension can be adjusted in real time by the control system. The cutting blade 2 can be fixed in a specific position by a robotic arm or pneumatic device and precisely positioned by a fine-tuning device. The cooling nozzle 3 can be connected to a high-pressure pump to ensure that the cooling medium is sprayed at a stable pressure and flow rate, and the position and angle of the nozzle are adjusted by the adjusting screws on the nozzle bracket 4. The receiving rack 5 can change its height and width via an electric or manual adjustment mechanism to ensure that it can accommodate plastic products of different sizes and shapes.

[0033] This design effectively solves the problem of uneven heat distribution in the cooling system of the edge trimmer, which causes localized overheating and softening of the plastic under high temperatures, thus affecting cutting accuracy and surface quality. Specifically, the uniform spraying and precise positioning of the cooling nozzles 3 ensure that the cooling medium fully covers the cutting area, preventing localized overheating and softening of the plastic product during cutting. This not only improves cutting accuracy but also enhances the surface quality of the plastic product, ensuring its stability and reliability.

[0034] In one embodiment, the conveyor belt 1 of the traction trimming machine for plastic products according to this application has a multi-layer structure. Specifically, the conveyor belt 1 includes an upper smooth conveying surface and a lower wear-resistant and anti-slip layer. The upper smooth conveying surface helps reduce friction with the plastic products, thereby making the conveying smoother; while the lower wear-resistant and anti-slip layer effectively improves the overall durability and anti-slip performance of the conveyor belt 1. In addition, baffles 6 are provided on both sides of the conveyor belt 1 to prevent the plastic products from shifting or falling during the conveying process, ensuring the stability of the conveying process.

[0035] For example, a smooth-surfaced material (such as polyethylene or polyurethane) can be selected as the upper layer of the conveyor belt 1. This material has good sliding properties and can reduce the frictional resistance of plastic products. Secondly, a wear-resistant and non-slip material (such as rubber or nylon) can be selected as the lower layer of the conveyor belt 1 to enhance its durability and anti-slip performance. The two layers are firmly bonded together using adhesives or other mechanical methods. Finally, baffles 6 are fixedly installed on both sides of the conveyor belt 1. The baffles 6 can be fixed to the frame of the conveyor belt 1 with bolts or clips to ensure its stability and reliability.

[0036] In one embodiment, Figure 2 As shown, the cutting blade 2 of a traction trimming machine for plastic products of this application is a high-speed rotating disc shape with multiple serrated cutting edges. The serrated cutting edges are staggered, and each cutting edge is provided with a guide groove 8 to guide the heat and debris generated during the cutting process. These guide grooves 8 gradually deepen from the edge of the cutting blade 2 towards the center, ensuring that heat and debris are more easily carried away by the cooling medium. The serrated cutting edges are made of high-hardness alloy steel and have undergone special heat treatment to improve wear resistance and heat resistance, ensuring stable operation over a long period of time.

[0037] In this application, the gradual deepening of the guide groove 8 from the edge of the cutting blade 2 towards the center is particularly significant. This is because during the cutting process of plastic products, the contact area of ​​the cutting blade 2 generates a considerable amount of heat, which may cause the plastic product to soften if not cooled in time. In this application, the guide groove 8 is designed to gradually deepen from the edge of the cutting blade 2 towards the center, so that the cooling medium ejected from the cooling nozzle 3 can enter the center of the cutting blade 2 along the gradually deepening guide groove 8, thereby preventing heat from accumulating at the center.

[0038] Furthermore, in this application, to better cool the cut plastic product, the serrated cutting edge 2 has different top heights. Specifically, some cutting edges have a higher top height than others. More specifically, in this application, the cutting edges with higher top heights have a first height, while the cutting edges with lower top heights have a second height, and the cutting edges with the first and second heights are arranged alternately. Thus, during the water spraying process from the cooling nozzle 3, after the cutting edge with the first height cuts the plastic product, the cutting edge with the second height immediately passes through the cooling nozzle 3. Since these cutting edges are lower than the cutting edge with the first height, a gap is formed between the cutting edge and the plastic product, allowing the cooling medium to directly cool the plastic product and avoiding the possibility of local softening.

[0039] The cutting blade 2 is fixed to the frame by an adjustable support arm 7. The support arm 7 allows for vertical adjustment of the cutting blade 2's height to accommodate plastic products of varying thicknesses. The adjustment is achieved through an adjustment device on the support arm 7, which typically includes a threaded rod and a matching adjustment handle. The operator can rotate the adjustment handle to adjust the position of the threaded rod, thereby changing the height of the cutting blade 2. Furthermore, the design of the support arm 7 ensures the stability of the cutting blade 2 during high-speed rotation, thus guaranteeing the accuracy and reliability of the cutting process.

[0040] Specifically, the cutting blade 2 is bolted to one end of the support arm 7, which is then connected to the frame via a hinge structure for height adjustment. The design and material selection of the guide groove 8 are achieved through optimization of existing cutting tools. The depth variation of the guide groove 8 has been rigorously calculated and experimentally verified to ensure effective flow of the cooling medium. The serrated cutting edge is made of high-hardness alloy steel and undergoes a special heat treatment process, including high-temperature quenching and low-temperature tempering, to improve the overall performance of the material. This design allows the cutting blade 2 to perform precise cutting effectively at high speeds and maintain good wear resistance and heat resistance during prolonged operation.

[0041] like Figure 3As shown, in one embodiment, the cooling nozzle 3 of a traction trimming machine for plastic products according to this application adopts a multi-nozzle design. Each nozzle can independently adjust its spray angle and flow rate to ensure that the cooling medium can evenly cover and accurately spray onto all parts of the plastic product. This design effectively avoids the problem of overheating of the plastic product caused by uneven local cooling by precisely controlling the working state of each nozzle. Specifically, the cooling nozzle 3 is fixed in the cooling area of ​​the trimming machine, and the position of each nozzle is carefully arranged to align with the key parts of the plastic product. The independent adjustment function of the nozzles is realized through mechanical devices or electronic control systems. Operators can adjust the angle and flow rate of each nozzle according to actual needs to adapt to plastic products of different shapes and sizes.

[0042] In one embodiment, the cooling nozzle 3 consists of multiple independently controllable nozzles evenly distributed at the nozzle tip to fully cover the surface of the plastic product. Each nozzle is connected to a separate flow control valve and angle adjustment mechanism, allowing the operator to precisely control the spray parameters of each nozzle. Specifically, the control valve can be a manual or electric valve used to adjust the cooling medium flow rate of each nozzle; the angle adjustment mechanism can be a set of rotatable and tiltable joint structures, allowing the nozzle to freely adjust the spray angle within a certain range to ensure that the cooling medium is accurately sprayed to the desired location.

[0043] Continue to refer Figure 3 In one embodiment, the cooling system of a traction trimming machine for plastic products according to this application includes multiple cooling nozzles 3 and temperature sensors 9. Each cooling nozzle 3 is equipped with multiple spray heads, and temperature sensors 9 are installed between these spray heads to monitor the temperature distribution of each spray head in real time. The data from the temperature sensors 9 is processed by a controller 10, which automatically adjusts the spray parameters of each spray head, such as spray angle, flow rate, and pressure, based on the monitored temperature distribution to ensure that each spray head provides a precise cooling effect. In addition, the controller 10 also dynamically adjusts the cooling medium flow rate and pressure of each spray head according to the material characteristics and thickness of the plastic product to adapt to the requirements of different materials and thicknesses, ensuring optimal cooling performance.

[0044] In one embodiment, the cooling nozzles 3 are installed in the cooling zone of the trimming machine, near the bottom of the trimming blade. Temperature sensors 9 are embedded inside the cooling nozzles 3 and distributed among the nozzles. The cooling medium is connected to each nozzle via pipes, and the controller 10 is electrically connected to the nozzles and temperature sensors 9 to achieve data acquisition and control command transmission. The controller 10 has a built-in preset algorithm that can automatically calculate and adjust the operating parameters of each nozzle based on the data fed back by the temperature sensors 9 and the characteristics of the plastic product, ensuring the stability and efficiency of the cooling system. For example, when the temperature sensor 9 detects a high temperature near a nozzle, the controller 10 increases the cooling medium flow rate and pressure of that nozzle, thereby quickly reducing the temperature in that area and achieving a precise cooling effect.

[0045] In one embodiment, a traction trimming machine for plastic products according to this application includes a nozzle support 4, which has a telescopic support rod and a universal adjustment mechanism, enabling arbitrary adjustment of the position and angle of the cooling nozzle 3 in three-dimensional space. Specifically, the telescopic support rod allows the nozzle to freely adjust its distance in a straight line to accommodate plastic products of different sizes. The universal adjustment mechanism, through a multi-axis linkage system, enables the cooling nozzle 3 to precisely adjust its spatial orientation to ensure that the cooling medium can uniformly cover the cutting area of ​​the plastic product.

[0046] The universal adjustment mechanism employs a multi-axis linkage system, specifically comprising multiple rotating axes and linkage assemblies. These rotating axes allow for precise adjustment of the cooling nozzle 3 in multiple dimensions. Furthermore, the universal adjustment mechanism boasts high positioning accuracy and flexibility, enabling rapid adjustment of the cooling nozzle 3's posture under various working conditions to meet diverse cutting requirements. For instance, when processing large or complex-shaped plastic products, the cooling nozzle 3 can be precisely moved to the desired position and adjusted to a suitable spray angle by adjusting the support rod and the universal adjustment mechanism, ensuring adequate cooling of the cutting area.

[0047] Return to reference Figure 1 In one embodiment, the receiving rack 5 of a plastic product traction trimming machine of this application is equipped with a multi-stage buffer structure to ensure that the cut plastic products can be placed stably on the receiving rack 5, avoiding surface damage caused by collision. Specifically, each stage of the buffer structure includes a buffer pad 11 and an adjustable support rod 12. The buffer pad 11 is located at a key contact position of the receiving rack 5 to absorb and buffer the impact force generated when the plastic products fall, reduce vibration and shaking, and ensure stability during placement. The adjustable support rod 12 is used to adjust the height and tilt angle of the receiving rack 5 to accommodate plastic products of different sizes and shapes, ensuring that each product falls stably on the buffer pad 11.

[0048] In one embodiment, the buffer pad 11 in the multi-stage buffer structure is made of a material with good elasticity and durability, such as rubber or foam, ensuring that it maintains effective buffering performance even after prolonged use. The adjustable support rod 12 is made of a rigid material, such as metal or high-strength engineering plastic, and its height can be adjusted via a threaded adjustment or telescopic design, ensuring that the receiving rack 5 remains stable under various working conditions. For example, the height of the support rod can be quickly adjusted by rotating the adjusting nut or manually locking the lever, thereby changing the overall posture of the receiving rack 5 to adapt to different cutting needs.

[0049] In actual operation, when this device is in use, the conveyor belt 1 first smoothly transports the plastic products to be cut to the cutting area. As the plastic products move along the conveyor belt 1 to the predetermined position, the cutting blade 2 quickly and accurately cuts them, ensuring that each piece of plastic product reaches the predetermined size and shape. To prevent the high temperatures generated during the cutting process from causing localized overheating and softening of the plastic products, the cooling nozzle 3 evenly sprays a cooling medium, such as coolant or cold air, at a suitable position near the cutting blade 2. The precise positioning of the cooling nozzle 3 is achieved thanks to the nozzle bracket 4, which not only fixes the cooling nozzle 3 but also allows for fine-tuning as needed to ensure that the cooling medium fully covers the cutting area of ​​the plastic product. In this way, the plastic product remains at an optimal temperature throughout the cutting process, preventing localized overheating from affecting cutting accuracy and surface quality. Finally, when the cut plastic products reach the end of the conveyor belt 1, the receiving rack 5 catches these finished products and arranges them in an orderly manner for subsequent processing and packaging. This series of steps, through the coordinated work of various components, enables the entire traction trimming machine to efficiently and accurately complete the cutting task of the plastic products.

[0050] The exemplary systems and methods of the present invention have been specifically shown and described with reference to the above embodiments, which are merely examples of the best mode for implementing the systems and methods. Those skilled in the art will understand that various changes can be made to the embodiments of the systems and methods described herein without departing from the spirit and scope of the invention as defined in the appended claims when implementing the systems and / or methods.

Claims

1. A traction trimming machine for plastic products, characterized in that, include: Conveyor belt (1) for conveying plastic products to be cut; Cutting blade (2), installed above the conveyor belt, is used to cut plastic products; Cooling nozzle (3) is installed close to the bottom of the cutting blade (2) for spraying cooling medium to prevent local overheating of plastic products; Nozzle bracket (4) is used to fix and adjust the position of the cooling nozzle; The receiving rack (5) is located at the end of the conveyor belt and is used to collect the cut plastic products; in The cutting blade (2) has multiple serrated cutting edges arranged in an alternating pattern. A guide groove (8) is provided between each cutting edge to guide the heat and debris generated during the cutting process. The depth of the guide groove (8) gradually changes, increasing from the edge of the cutting blade (2) towards the center. The top height of one part of the serrated cutting edge of the cutting blade (2) is higher than the top height of the other part.

2. The traction trimming machine for plastic products according to claim 1, characterized in that: The conveyor belt (1) has a multi-layer structure, including an upper smooth conveying surface and a lower wear-resistant and anti-slip layer. Baffles (6) are provided on both sides of the conveyor belt (1).

3. The traction trimming machine for plastic products according to claim 1, characterized in that: The cutting blade (2) is a disc-shaped blade.

4. A traction trimming machine for plastic products according to claim 3, characterized in that: The cutting blade (2) is fixed to the frame by an adjustable support arm (7), which can adjust the height of the cutting blade (2) in the vertical direction.

5. A traction trimming machine for plastic products according to claim 1, characterized in that: The cooling nozzle (3) is a multi-nozzle design, and each nozzle can independently adjust the spray angle and flow rate.

6. A traction trimming machine for plastic products according to claim 5, characterized in that: Temperature sensors (9) are provided between the multiple nozzles of the cooling nozzle (3).

7. A traction trimming machine for plastic products according to claim 1, characterized in that: The nozzle support (4) includes a telescopic support rod and a universal adjustment mechanism to adjust the position and angle of the cooling nozzle (3), and the universal adjustment mechanism adopts a multi-axis linkage system.

8. A traction trimming machine for plastic products according to claim 1, characterized in that: The receiving rack (5) is equipped with a multi-level buffer structure, each level of which includes a buffer pad (11) and an adjustable support rod (12).

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