Trimming die for plastic products

By designing a trimming mold with a mold base and guiding mechanism, the problem of unstable trimming of large plastic products was solved, achieving efficient and precise trimming operations, which is suitable for edge trimming of large plastic products.

CN224240166UActive Publication Date: 2026-05-15LOUDI MAORUN PLASTIC PRODUCTS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
LOUDI MAORUN PLASTIC PRODUCTS CO LTD
Filing Date
2025-06-17
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

In the current process of trimming plastic products, the operation is time-consuming and labor-intensive, especially for large plastic products that are difficult to move and whose trimming is unstable, affecting processing efficiency and precision.

Method used

A trimming die is designed, comprising a die base, a guiding mechanism, a trimming mechanism, and an adjusting mechanism. The guiding mechanism assists in the movement of the base, and adjustable cutter head height and material discharge components are provided. It is equipped with a detachable grinding disc to achieve stable trimming and efficient processing.

Benefits of technology

It enables smooth trimming of large plastic products, improves processing efficiency and precision, reduces operational difficulty, and ensures trimming quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a trimming die for a plastic product, which belongs to the technical field of plastic processing equipment and comprises a die base moving on the surface of the plastic product, and a trimming mechanism for cutting upper burrs on the plastic product is arranged on the die base. The trimming mechanism comprises a tool apron base plate arranged below the die base, and a tool bit is arranged at the position, in front of the die base, of the front end of the tool apron base plate. A guide mechanism used for assisting the die base to move stably is arranged on one side of the trimming mechanism and comprises a guide rod rotationally connected with one side of the die base through a connecting base. A guide wheel is arranged at the other end of the guide rod, and a guide locking piece used for fixing the rotation angle between the guide rod and the connecting base is arranged on the connecting base. The trimming device is stable and smooth in trimming operation, and is more suitable for trimming edge burrs of large plastic products.
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Description

Technical Field

[0001] This utility model belongs to the technical field of plastic processing equipment, specifically a trimming mold for plastic products. Background Technology

[0002] During the manufacturing process of plastic products, due to their special processing and molding technology, burrs and other appearance defects often appear on their edges or demolding areas. Therefore, it is necessary to further remove these burrs and rough edges through trimming.

[0003] In the existing trimming process for plastic products, operators need to hold a spatula or trimming knife and cut and smooth the burrs on the edge. This operation is time-consuming and labor-intensive, and the processing accuracy is not high. It will greatly affect the efficiency for processing needs with large trimming volumes.

[0004] Another type of trimming mold uses a fixed workbench. The plastic product that needs to be trimmed is moved and fixed on the workbench, and then the trimming cutter set on the workbench is operated to cut. This type of trimming device still has problems. Large plastic products are difficult to move onto the workbench due to their weight, and their large size also makes it more troublesome to operate the cutter on the workbench for trimming.

[0005] Therefore, for large, immobile plastic products, and in order to improve the stability of the cutting tools during trimming, a portable and stable trimming mold device is needed. Utility Model Content

[0006] To address the above problems, this utility model provides a trimming mold for plastic products, which ensures smooth and stable trimming operations and is more suitable for trimming the edges of large plastic products.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0008] A trimming mold for plastic products includes a mold base that moves on the surface of the plastic product, and a trimming mechanism for cutting burrs on the surface of the plastic product is provided on the mold base.

[0009] The trimming mechanism includes a cutter base plate disposed below the mold base, with a cutter head disposed at the front end of the cutter base in front of the mold base; a guide mechanism for assisting the smooth movement of the mold base is disposed on one side of the trimming mechanism.

[0010] The guiding mechanism includes a guide rod that is rotatably connected to one side of the mold base via a connecting seat; the other end of the guide rod is provided with a guide wheel, and the connecting seat is provided with a guide locking element for fixing the rotation angle between the guide rod and the connecting seat.

[0011] As a further improvement to the above solution, a guide rail is provided between the tool holder base plate and the tool head for moving the tool head laterally, and a tool head locking member is provided at the guide rail engagement point for fixing the tool head on the tool holder base plate; the front end of the tool head has a blade that is inclined to one side.

[0012] As a further improvement to the above solution, the connecting seat and the guide rod are hinged together, the guide locking component is a locking nut component set at one end of the hinged mandrel; the cutter head locking component is a locking bolt component set at the guide rail mating point.

[0013] As a further improvement to the above solution, a material discharge component is provided on one side of the trimming mechanism. The material discharge component includes a guide plate disposed near the blade. The guide plate is vertically disposed and faces the advancing direction of the mold base. The guide plate is connected to the blade holder base plate through spring clips.

[0014] As a further improvement to the above solution, an adjustment mechanism for adjusting the distance between the cutter head and the surface of the plastic product is provided between the mold base and the trimming mechanism; the rear end of the cutter base plate is rotatably connected to the bottom of the mold base, the front end of the cutter base plate is provided with a horizontal sliding groove, and the front two sides of the mold base are provided with vertical through grooves at positions corresponding to the sliding grooves; the adjustment mechanism includes an adjustment rod and a cutter locking member for fixing the adjustment rod, the middle part of the adjustment rod passes through the sliding groove and both ends are set in the through groove, and the cutter locking member is a fastening nut that cooperates with both ends of the adjustment rod and is fixed on the outside of the through groove.

[0015] As a further improvement to the above solution, a handle is provided on the upper part of the mold base, and a mounting base is provided at the tail of the mold base, with a removable grinding disc provided inside the mounting base.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] 1. By setting up a guide mechanism that can move stably on the side surface of the plastic product, the mold base is assisted to move smoothly for trimming operations; the trimming device is also designed to be lightweight and handheld, which facilitates quick transfer and trimming of the edges of large plastic parts.

[0018] 2. It is equipped with an adjustable cutting head height adjustment mechanism, which allows the cutting head to swing up and down by moving the adjustment rod up and down in the through groove; it is also equipped with a material discharge device that can discharge material to one side to prevent the burrs and debris from affecting subsequent trimming operations.

[0019] 3. It is equipped with a detachable grinding disc to further grind burrs that are not completely removed by the tool, thereby improving the trimming quality. Attached Figure Description

[0020] Figure 1This is a three-dimensional structural diagram of the present invention.

[0021] Figure 2 This is a three-dimensional structural diagram of the present invention from a side-rear view.

[0022] Figure 3 This is a schematic diagram showing the connection relationship between the trimming mechanism and the adjustment mechanism in this utility model.

[0023] In the diagram: 1. Mold base; 2. Plastic product; 3. Guiding mechanism; 4. Trimming mechanism; 5. Adjusting mechanism; 6. Discharge component; 11. Roller; 12. Through groove; 13. Handle; 14. Mounting seat; 15. Grinding disc; 21. Edge spike; 31. Connecting seat; 32. Hinge fit; 33. Guide rod; 34. Guide wheel; 35. Guide locking component; 41. Tool holder base plate; 411. Slide groove; 42. Tool head; 421. Blade; 43. Guide rail fit; 44. Tool head locking component; 51. Adjusting rod; 52. Tool holder locking component; 61. Guide plate; 62. Spring clip. Detailed Implementation

[0024] To enable those skilled in the art to better understand the technical solution, the present invention will be described in detail below with reference to the embodiments. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of the present invention in any way.

[0025] like Figures 1-3 As shown, the specific solution of this embodiment is: a trimming mold for plastic products, including a mold base 1 that moves on the surface of the plastic product 2, rollers 11 are provided at the four corners of the bottom of the mold base 1; and a trimming mechanism 4 for cutting the edge spikes 21 on the mold base 1.

[0026] The trimming mechanism 4 includes a cutter base plate 41 disposed below the mold base 1, with a cutter head 42 disposed at the front end of the cutter base plate 41 in front of the mold base 1; a guide mechanism 3 for assisting the mold base 1 to move smoothly is disposed on one side of the trimming mechanism 4.

[0027] The guiding mechanism 3 includes a guide rod 33 that is rotatably connected to one side of the mold base 1 via a connecting seat 31; the other end of the guide rod 33 is provided with a guide wheel 34, and the connecting seat 31 is provided with a guide locking member 35 for fixing the rotation angle between the guide rod 33 and the connecting seat 31.

[0028] like Figures 1-3 As shown, in a preferred embodiment, a guide rail engagement 43 for laterally moving the cutter head 42 is provided between the cutter base plate 41 and the cutter head 42. A cutter head locking member 44 for fixing the cutter head 42 on the cutter base plate 41 is provided at the guide rail engagement 43. The front end of the cutter head 42 is provided with a blade 421 that is inclined to one side.

[0029] like Figures 1-3 As shown, in a preferred embodiment, the connecting seat 31 and the guide rod 33 are hinged together 32, the guide locking member 35 is a locking nut provided at one end of the spindle of the hinged connection 32; the cutter head locking member 44 is a locking bolt provided at the guide rail connection 43.

[0030] like Figures 1-3 As shown, in a preferred embodiment of the above, the trimming mechanism 4 is provided with a material discharge component 6 on one side. The material discharge component 6 includes a guide plate 61 provided on the side near the blade 421. The guide plate 61 is vertically arranged and faces the forward direction of the mold base 1. The guide plate 61 is connected to the blade base plate 41 through a spring clip 62.

[0031] like Figures 1-3 As shown, in a preferred embodiment of the above embodiment, an adjustment mechanism 5 for adjusting the distance between the cutter head 42 and the surface of the plastic product 2 is provided between the mold base 1 and the trimming mechanism 4; the rear end of the cutter base plate 41 is rotatably connected to the bottom of the mold base 1, and a sliding groove 411 is provided laterally at the front end of the cutter base plate 41. A through groove 12 is provided vertically on both sides of the front part of the mold base 1 at a position corresponding to the sliding groove 411; the adjustment mechanism 5 includes an adjustment rod 51 and a cutter locking member 52 for fixing the adjustment rod 51. The middle part of the adjustment rod 51 passes through the sliding groove 411 and both ends are set in the through groove 12. The cutter locking member 52 is a fastening nut that cooperates with both ends of the adjustment rod 51 and is fixed on the outside of the through groove 12.

[0032] like Figures 1-3 As shown, in a preferred embodiment, the upper part of the mold base 1 is provided with a handle 13, the tail of the mold base 1 is provided with a mounting base 14, and a detachable grinding disc 15 is provided inside the mounting base 14.

[0033] The specific working principle of this utility model is as follows:

[0034] This device can be used to stably trim burrs on the smooth edges of large plastic products, such as straight edges with a certain angle or edges of truncated cone structures with a fixed arc angle. First, the guide wheel 34 is attached to the other side of the edge by rotating the guide rod 33. Then, the rotation angle is fixed by the guide locking part 35. After that, the position of the cutter head 42 is adjusted, and the handle 13 is used to push the mold base 1 to move and trim the edge.

[0035] It should be noted that, in this document, the terms "including," "comprising," 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. Specific examples have been used in this document to illustrate the principles and implementation methods of the present invention. These examples are merely for the purpose of helping to understand the method and core ideas of the present invention. The above descriptions are only preferred embodiments of the present invention. It should be pointed out that, due to the limitations of written expression and the objective existence of infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the concept and technical solution of the present invention to other situations without modification, should all be considered within the scope of protection of the present invention.

Claims

1. A trimming mold for plastic products, characterized in that, Includes a mold base (1) that moves on the surface of a plastic product (2), and the mold base (1) is provided with a trimming mechanism (4) for cutting the edge spikes (21) on the plastic product (2); The trimming mechanism (4) includes a cutter base plate (41) disposed below the mold base (1), and a cutter head (42) is disposed at the front end of the cutter base plate (41) in front of the mold base (1); a guide mechanism (3) for assisting the mold base (1) to move smoothly is disposed on one side of the trimming mechanism (4). The guiding mechanism (3) includes a guide rod (33) rotatably connected to one side of the mold base (1) via a connecting seat (31); the other end of the guide rod (33) is provided with a guide wheel (34), and the connecting seat (31) is provided with a guide locking member (35) for fixing the rotation angle between the guide rod (33) and the connecting seat (31).

2. The trimming mold for plastic products according to claim 1, characterized in that, A guide rail engagement (43) for laterally moving the cutter head (42) is provided between the cutter base plate (41) and the cutter head (42). A cutter head locking member (44) for fixing the cutter head (42) on the cutter base plate (41) is provided at the guide rail engagement (43). The front end of the cutter head (42) is provided with a blade (421) that is inclined to one side.

3. A trimming mold for plastic products according to claim 2, characterized in that, The connecting seat (31) and the guide rod (33) are hinged (32), the guide locking member (35) is a locking nut member set at one end of the spindle of the hinged fit (32); the cutter head locking member (44) is a locking bolt member set at the guide rail fit (43).

4. A trimming mold for plastic products according to claim 2, characterized in that, The trimming mechanism (4) has a material discharge component (6) on one side. The material discharge component (6) includes a guide plate (61) located near the blade (421). The guide plate (61) is vertically arranged and faces the mold base (1) in the forward direction. The guide plate (61) is connected to the blade holder base plate (41) through a spring clip (62).

5. A trimming mold for plastic products according to claim 1, characterized in that, An adjustment mechanism (5) for adjusting the distance between the cutter head (42) and the surface of the plastic product (2) is provided between the mold base (1) and the trimming mechanism (4); the rear end of the cutter base plate (41) is rotatably connected to the bottom of the mold base (1), the front end of the cutter base plate (41) is provided with a horizontal groove (411), and the front sides of the mold base (1) are provided with vertical through grooves (12) corresponding to the grooves (411); the adjustment mechanism (5) includes an adjustment rod (51) and a cutter locking member (52) for fixing the adjustment rod (51). The middle part of the adjustment rod (51) passes through the groove (411) and both ends are set in the through groove (12). The cutter locking member (52) is a fastening nut that cooperates with both ends of the adjustment rod (51) and is fixed on the outside of the through groove (12).

6. A trimming mold for plastic products according to claim 1, characterized in that, The mold base (1) is provided with a handle (13) on the upper part and a mounting base (14) is provided at the tail of the mold base (1). A detachable grinding disc (15) is provided inside the mounting base (14).