Cutting mold for injection molding part

By designing injection molding die cutting molds, we have achieved precise cutting of complex inserts, which solves the problems of reduced accuracy and high cost caused by multiple cutting in existing technologies, and improves the quality and efficiency of injection molded parts.

CN224255552UActive Publication Date: 2026-05-19SHENZHEN LUXURY TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN LUXURY TECH CO LTD
Filing Date
2025-03-31
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

In existing injection molding processes, complex inserts require multiple cuts, which leads to reduced injection molding accuracy, high equipment costs, and increased quality risks.

Method used

A cutting mold for injection molded parts has been designed, which includes a fixing structure, a positioning structure, an adjustment component and a cutting component. It achieves fine cutting through multiple cutting operations, and combined with a buffer and ejector pin structure, it ensures product positioning and cutting quality.

Benefits of technology

It improves injection molding cutting accuracy, reduces equipment costs, enhances processing quality and efficiency, protects the blade, and has good market application value.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of injection molding part processing, and discloses an injection molding part cutting die which comprises a base, a fixing structure and a positioning structure are respectively arranged on the base, the fixing structure is arranged in the middle of the base, the bottom end of the positioning structure is arranged on one side of the fixing structure and installed on the base, and the positioning structure is arranged on the base. The top end of the positioning structure is arranged in the middle in the fixing structure, a first buffer and a second buffer are arranged on the two sides of the top end of the positioning structure in the fixing structure correspondingly, the top ends of the first buffer and the second buffer are both connected with the lower surface of a pressing plate, and a cutting assembly is installed in the middle of the lower surface of the pressing plate. An adjusting assembly is installed on one side face of the fixing structure. The cutting speed is increased, meanwhile, a fine blade is protected, abrasion of the blade is reduced, the precision of injection molding cutting is improved, the quality safety is greatly improved, cost is low, and good market application value is achieved.
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Description

Technical Field

[0001] This utility model relates to the field of injection molding processing technology, and more specifically, to an injection molding part cutting mold. Background Technology

[0002] Molds are various molds and tools used in industrial production to obtain the desired products through injection molding, blow molding, extrusion, die casting, forging, smelting, stamping, and other methods. In short, molds are tools used to make shaped objects. These tools are composed of various parts, and different molds are composed of different parts. They mainly achieve the processing of the shape of the object by changing the physical state of the material being molded. They are known as the "mother of industry". At present, plastic parts are often processed by injection molding using a one-out-many-out processing method. That is, after the parts are molded, there is a tendency for adjacent molded parts to be connected by injection molding, so a corresponding cutting device is needed to cut and separate the molded parts.

[0003] Currently, in many plastic parts, in order to improve the strength, hardness, wear resistance, etc., or to increase the size of the plastic parts and facilitate connection and installation, the injection molded products of inserts generally need to be cut and shaped twice by multiple machines, especially complex inserts. This leads to complex injection molding process and high equipment cost. Since the two injection molding and cutting will reduce the injection precision of the inserts, the quality risk will increase.

[0004] Existing technology has flaws and needs improvement. Utility Model Content

[0005] To address the shortcomings of current technology, this utility model provides a cutting mold for injection molded parts.

[0006] The present invention provides a cutting mold for injection molded parts, comprising a base, on which a fixing structure and a positioning structure are respectively provided. The fixing structure is located in the middle of the base, and the bottom end of the positioning structure is located on one side of the fixing structure and is installed on the base. The top end of the positioning structure is located in the middle of the fixing structure. A first buffer and a second buffer are respectively provided on both sides of the top end of the positioning structure in the fixing structure. The top ends of the first buffer and the second buffer are both connected to the lower surface of a pressure plate. A cutting component is installed in the middle of the lower surface of the pressure plate, and an adjustment component is installed on one side of the fixing structure.

[0007] Preferably, the positioning structure includes a positioning rocker, a positioning seat, and a positioning guide post. The positioning seat is disposed on the base, the movable end of the positioning rocker is movably disposed within the positioning seat, one end of the positioning rocker is connected to the bottom end of the positioning guide post, and the positioning guide post is disposed within the fixed structure.

[0008] Preferably, the fixing structure includes a fixing base and a fixing clamp. The fixing clamp is disposed on one side of the fixing base. A rectangular groove is provided in the middle of the side of the fixing base. An elongated groove is inclinedly disposed in the rectangular groove. Multiple through holes are provided in the rectangular groove. Two fixing holes are respectively provided at both ends of the fixing base.

[0009] Preferably, the adjusting assembly includes an adjusting cylinder, an adjusting seat, an adjusting rod, an adjusting adapter, an adjusting slide rod, and an adjusting head. The adjusting seat is located on the side of the fixed structure, the fixed end of the adjusting cylinder is located on the side of the adjusting seat, the bottom end of the adjusting adapter is located on the adjusting seat, the output end of the adjusting cylinder is connected to one end of the adjusting rod, the other end of the adjusting rod is connected to the adjusting adapter, the adjusting slide rod is mounted on the adjusting adapter, and the adjusting head is mounted on one end of the adjusting slide rod.

[0010] Preferably, the cutting assembly includes a cutting cylinder, a cylinder mounting base, a cutting limiting base, a cutting carrier plate, a cutting slide rail, a cutting slider, a first cutter, and a second cutter. The cylinder mounting base, the cutting limiting base, and the cutting carrier plate are sequentially spaced on the lower surface of the pressure plate. The fixed end of the cutting cylinder is mounted on the cylinder mounting base. The cutting slide rail is mounted on the lower surface of the cutting limiting base. The cutting slider is installed inside the cutting slide rail. The output end of the cutting cylinder is connected to one end of the cutting slide rod. The other end of the cutting slide rod passes through the cylinder mounting base and is connected to the cutting slider. The first cutter and the second cutter are respectively mounted parallel to each other on the lower end of the cutting slider.

[0011] Preferably, the first buffer includes a buffer cylinder and a buffer rod. The buffer cylinder is disposed in a fixing hole of a fixed structure. One end of the buffer rod is installed on the output end of the buffer cylinder, and the other end of the buffer rod is connected to the lower surface of the pressure plate facing upward.

[0012] Preferably, the fixing structure is further provided with ejector pins, and at least two ejector pins are provided.

[0013] Preferably, the base is also provided with multiple slots.

[0014] Compared to existing technologies, this invention features a fixed structure for placing the product, a positioning structure for positioning the product within the fixed structure, and an adjustment component for adjusting the product's positioning through perforations. These components work in conjunction with the positioning structure for positioning, while the cutting component performs multiple cuts for precise cutting. After cutting, the product is ejected by ejector pins within the fixed structure, resulting in a more aesthetically pleasing mold. This ensures processing quality and efficiency, enhances practicality, increases cutting speed, protects the precision blades, reduces blade wear, improves injection molding cutting accuracy, significantly improves quality and safety, and reduces cost, making it a valuable addition to the market. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the overall structure of the fixing structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the overall structure of the adjustment component of this utility model;

[0018] Figure 4 This is a schematic diagram of the overall structure of the cutting component of this utility model.

[0019] Markings: 1. Base, 2. Fixing structure, 3. Positioning structure, 4. First buffer, 5. Second buffer, 6. Pressure plate, 7. Cutting assembly, 8. Adjusting assembly, 21. Fixing seat, 22. Fixing clamp, 23. Rectangular groove, 24. Long groove, 25. Multiple through holes, 26. Fixing hole, 81. Adjusting cylinder, 82. Adjusting seat, 83. Adjusting adapter, 84. Adjusting slide bar, 85. Adjusting head, 86. Cutting cylinder, 71. Cylinder mounting seat, 72. Cutting limit seat, 73. Cutting carrier plate, 74. Cutting slide rail, 75. Cutting slider, 76. First cutter, 77. Second cutter, 78. Detailed Implementation

[0020] It should be noted that the above-mentioned technical features can be combined with each other to form various embodiments not listed above, all of which are considered to be within the scope of this utility model specification; and, for those skilled in the art, improvements or modifications can be made based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims of this utility model.

[0021] To facilitate understanding of this utility model, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. The accompanying drawings show preferred embodiments of this utility model. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0022] It should be noted that when a component is described as being "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is described as being "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this specification are for illustrative purposes only.

[0023] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention.

[0024] The present invention will now be described in detail with reference to the accompanying drawings.

[0025] like Figures 1-4 As shown: A cutting mold for injection molded parts includes a base 1. A fixing structure 2 and a positioning structure 3 are respectively provided on the base 1. The fixing structure 2 is located in the upper middle part of the base 1. The bottom end of the positioning structure 3 is located on one side of the fixing structure 2 and is installed on the base 1. The top end of the positioning structure 3 is located in the middle of the fixing structure 2. A first buffer 4 and a second buffer 5 are respectively provided on both sides of the top end of the positioning structure 3 in the fixing structure 2. The top ends of the first buffer 4 and the second buffer 5 are connected to the lower surface of the pressure plate 6. A cutting component 7 is installed in the middle of the lower surface of the pressure plate 6. An adjustment component 8 is installed on one side of the fixing structure 2.

[0026] It should be noted that the product is first placed on the positioning structure 3 inside the fixed structure 2 for positioning. After positioning, the output end of the adjusting component 8 passes through the fixed structure 2 to adjust the perforation of the positioned product. Then, through the descent of the first buffer 4 and the second buffer 5, the cutting component 7 first performs rough cutting on the product, and then performs fine cutting.

[0027] Preferably, the positioning structure 3 includes a positioning rocker, a positioning seat, and a positioning guide post. The positioning seat is disposed on the base 1, the movable end of the positioning rocker is movably disposed within the positioning seat, one end of the positioning rocker is connected to the bottom end of the positioning guide post, and the positioning guide post is disposed within the fixed structure 2.

[0028] It should be noted that manually driving the positioning rocker to rock up and down within the positioning seat enables the positioning guide post to move up and down within the fixed structure 2, thereby allowing the product to be placed and processed within the fixed structure 2.

[0029] Preferably, the fixing structure 2 includes a fixing base 21 and a fixing clamp 22. The fixing clamp 22 is disposed on one side of the fixing base 21. A rectangular groove 23 is provided in the middle of the side of the fixing base 21. An elongated groove 24 is inclinedly disposed in the rectangular groove 23. A plurality of through holes 25 are provided in the rectangular groove 23. Two fixing holes 26 are respectively provided at both ends of the fixing base 21.

[0030] It should be noted that the fixing plate 22 is used to cooperate with the fixing seat 21 to cover the product, ensuring that the cutting debris flies out when the product is processed in the rectangular groove 23. When the product is placed in the rectangular groove 23, the positioning guide post in the elongated groove 24 plays a positioning role for the product, ensuring that the product will not move during the processing. After the processing is completed, the positioning guide post descends and the product is taken out from the rectangular groove 23.

[0031] Preferably, the adjusting assembly 8 includes an adjusting cylinder 81, an adjusting seat 82, an adjusting rod 83, an adjusting adapter 84, an adjusting slide rod 85, and an adjusting head 86. The adjusting seat 82 is located on the side of the fixed structure 2. The fixed end of the adjusting cylinder 81 is located on the side of the adjusting seat 82. The bottom end of the adjusting adapter 84 is located on the adjusting seat 82. The output end of the adjusting cylinder 81 is connected to one end of the adjusting rod 83, and the other end of the adjusting rod 83 is connected to the adjusting adapter 84. The adjusting slide rod 85 is installed on the adjusting adapter 84, and the adjusting head 86 is installed on one end of the adjusting slide rod 85.

[0032] It should be noted that the adjusting cylinder 81 drives the adjusting adapter 84 to work through the adjusting rod 83. The adjusting slide rod 85 adjusts the distance on the adjusting adapter 84 and adjusts the angle through the adjusting adapter 84, so that the adjusting head 86 can be fixed to the inner layer product of the rectangular groove 23 through the fixing hole 26 on the fixing plate 22.

[0033] Preferably, the cutting assembly 7 includes a cutting cylinder 71, a cylinder mounting base 72, a cutting limiting base 73, a cutting carrier plate 74, a cutting slide rail 75, a cutting slider 76, a first cutter 77, and a second cutter 78. The cylinder mounting base 72, the cutting limiting base 73, and the cutting carrier plate 74 are respectively and spaced apart on the lower surface of the pressure plate 6. The fixed end of the cutting cylinder 71 is mounted on the cylinder mounting base 72. The cutting slide rail 75 is mounted on the lower surface of the cutting limiting base 73. The cutting slider 76 is installed inside the cutting slide rail 75. The output end of the cutting cylinder 71 is connected to one end of the cutting slide rod. The other end of the cutting slide rod passes through the cylinder mounting base 72 and is connected to the cutting slider 76. The first cutter 77 and the second cutter 78 are respectively mounted parallel to each other on the lower end of the cutting slider 76.

[0034] It should be noted that the cutting cylinder 71 drives the cutting slider 76 to slide within the cutting slide rail 75 via the cutting slide rod, while the cutting limit seat 73 is used to limit the sliding distance of the cutting slider 76 within the cutting slide rail 75. The sliding of the cutting slider 76 drives the first cutter 77 and the second cutter 78 to cut the product that has been fixed below.

[0035] Furthermore, the first cutter 77 performs a rough cut on the product; the second cutter 78 performs a fine and aesthetic cut on the product.

[0036] Preferably, the first buffer 4 includes a buffer cylinder and a buffer rod. The buffer cylinder is disposed in the fixing hole 26 of the fixing structure 2. One end of the buffer rod is installed on the output end of the buffer cylinder, and the other end of the buffer rod is connected to the lower surface of the pressure plate 6 facing upward.

[0037] It should be noted that the buffer cylinder drives the buffer rod to perform an upgrade movement, and the second buffer 5 has the same structure and function as the first buffer 4.

[0038] Preferably, the fixing structure 2 is further provided with ejector pins, and at least two ejector pins are provided.

[0039] Preferably, the base 1 is also provided with multiple slots.

[0040] It should be noted that at least four slots should be provided, located at the four corners of the base 1, to secure the entire cutting mold on the worktable.

[0041] It should be noted that the above-mentioned technical features can be combined with each other to form various embodiments not listed above, all of which are considered to be within the scope of this utility model specification; and, for those skilled in the art, improvements or modifications can be made based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims of this utility model.

Claims

1. A cutting mold for injection molded parts, characterized in that, The device includes a base, on which a fixing structure and a positioning structure are respectively provided. The fixing structure is located in the middle of the base, and the bottom end of the positioning structure is located on one side of the fixing structure and is installed on the base. The top end of the positioning structure is located in the middle of the fixing structure. A first buffer and a second buffer are respectively provided on both sides of the top end of the positioning structure in the fixing structure. The top ends of the first buffer and the second buffer are both connected to the lower surface of a pressure plate. A cutting component is installed in the middle of the lower surface of the pressure plate, and an adjustment component is installed on one side of the fixing structure.

2. The injection molding die according to claim 1, characterized in that, The positioning structure includes a positioning rocker, a positioning seat, and a positioning guide post. The positioning seat is located on the base, the movable end of the positioning rocker is movably located inside the positioning seat, one end of the positioning rocker is connected to the bottom end of the positioning guide post, and the positioning guide post is located inside the fixed structure.

3. The injection molding part cutting mold according to claim 1, characterized in that, The fixing structure includes a fixing base and a fixing clamp. The fixing clamp is located on one side of the fixing base. A rectangular groove is provided in the middle of the side of the fixing base. An elongated groove is inclinedly provided in the rectangular groove. Multiple through holes are provided in the rectangular groove. Two fixing holes are provided at each end of the fixing base.

4. The injection molding die according to claim 1, characterized in that, The adjustment assembly includes an adjustment cylinder, an adjustment seat, an adjustment rod, an adjustment adapter, an adjustment slide rod, and an adjustment head. The adjustment seat is located on the side of the fixed structure, the fixed end of the adjustment cylinder is located on the side of the adjustment seat, the bottom end of the adjustment adapter is located on the adjustment seat, the output end of the adjustment cylinder is connected to one end of the adjustment rod, the other end of the adjustment rod is connected to the adjustment adapter, the adjustment slide rod is installed on the adjustment adapter, and the adjustment head is installed on one end of the adjustment slide rod.

5. A cutting mold for injection molded parts according to claim 1, characterized in that, The cutting assembly includes a cutting cylinder, a cylinder mounting base, a cutting limit seat, a cutting carrier plate, a cutting slide rail, a cutting slider, a first cutter, and a second cutter. The cylinder mounting base, the cutting limit seat, and the cutting carrier plate are sequentially spaced on the lower surface of the pressure plate. The fixed end of the cutting cylinder is mounted on the cylinder mounting base. The cutting slide rail is mounted on the lower surface of the cutting limit seat. The cutting slider is installed inside the cutting slide rail. The output end of the cutting cylinder is connected to one end of the cutting slide rod. The other end of the cutting slide rod passes through the cylinder mounting base and is connected to the cutting slider. The first cutter and the second cutter are respectively mounted parallel to each other on the lower end of the cutting slider.

6. The injection molding die according to claim 1, characterized in that, The first buffer includes a buffer cylinder and a buffer rod. The buffer cylinder is disposed in a fixing hole of a fixed structure. One end of the buffer rod is installed on the output end of the buffer cylinder, and the other end of the buffer rod is connected to the lower surface of the pressure plate facing upward.

7. The injection molding part cutting mold according to claim 1, characterized in that, The fixing structure is also provided with ejector pins, and at least two ejector pins are provided.

8. The injection molding die according to claim 1, characterized in that, The base is also equipped with multiple slots.