Injection mold sprue shearing device capable of removing flashes and burrs

By designing an injection mold gate shearing device that can remove flash burrs, the assembly displacement component, position adjustment component and angle adjustment component are used, combined with the technology of high-speed injection of dry ice particles, the problem of damaged workpiece edge accuracy when scraping flash burrs in the prior art is solved, and efficient and accurate burr removal is achieved.

CN222832197UActive Publication Date: 2025-05-06SHENZHEN SENDERUI PRECISION MOULD CO LTD
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Patent Information

Application Number
CN202420269020.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-02-01
Publication Date
2025-05-06
Estimated Expiration
2034-02-01

AI Technical Summary

Technical Problem

During the mold release process of injection molds, the prior art uses the cutting head to scrape the flash burrs. Although it can effectively remove the burrs, it may also scrape a part of the surface of the workpiece in operations with high machining accuracy, resulting in the impact of the accuracy of the edge part of the workpiece.

Method used

An injection mold gate shearing device that can remove flash burrs is designed, including assembly displacement components, position adjustment components and angle adjustment components, and the flash burrs are removed by high-speed sprayed dry ice particles to avoid damage to the edge of the workpiece.

Benefits of technology

By reducing operating steps and using high-speed spraying of dry ice particles, effective removal of flash burrs is achieved, damage to the edge of the workpiece is avoided, and processing accuracy is improved.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of injection mold processing, in particular to an injection mold sprue shearing device capable of removing flash burrs. The technical problem is that although the burrs can be effectively removed by adopting a method for scraping the burrs by adopting a tool bit after an injection mold is demolded, the tool bit may scrape off a part of the surface of a workpiece during operation with relatively high processing precision, so that the precision of the edge part of the workpiece is influenced. According to the technical scheme, the injection mold sprue shearing device capable of removing the flash burrs comprises an assembly displacement assembly. Through the arrangement of the sliding fixing mechanism, the angle adjusting mechanism and the double-flow mechanism, after an operator fixes a workpiece on equipment, the equipment firstly shears a sprue on the workpiece and then removes flash and burrs of the workpiece, so that the operation steps are reduced, the production efficiency is improved, and the production cost is reduced. And the problem that the edge part of the workpiece is damaged can be avoided in the mode that the flash burrs are removed through the dry ice particles sprayed at a high speed.
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Description

Technical Field

[0001] The utility model relates to the field of injection mold processing, in particular to an injection mold gate shearing device capable of removing flash burrs. Background Art

[0002] In the plastics manufacturing industry in my country, the production of injection molds plays a pivotal role. In the process of mold demoulding, removing burrs is a key step. However, many injection molds currently use the method of scraping burrs with a cutter head after demoulding. Although the burrs can be effectively removed, the cutter head may also scrape off part of the surface of the workpiece in operations with high processing precision, affecting the precision of the edge of the workpiece. Utility Model Content

[0003] In order to overcome the problem that the cutter head is used to scrape off the burrs on the edges of the injection mold after demolding, although the burrs can be effectively removed, the cutter head may also scrape off a part of the surface of the workpiece in operations with high machining precision, thereby affecting the precision of the edge of the workpiece.

[0004] The technical solution of the utility model is: an injection mold gate shearing device capable of removing flash burrs comprises an assembly displacement component, a position adjustment component and an angle adjustment component; a position adjustment component for adjusting a processing position is arranged on the upper end of the assembly displacement component; an angle adjustment component for adjusting a processing angle is arranged on the position adjustment component.

[0005] Preferably, the assembly displacement component is used to fix and adjust the position of the workpiece; the position adjustment component is used to adjust the position of the tool and the nozzle; and the angle adjustment component is used to adjust the angle of the tool and the nozzle.

[0006] Preferably, the assembly displacement component includes a conveyor belt, a first motor, an assembly table, a first hydraulic cylinder, and a clamping strip; a first motor is provided on one side of the conveyor belt, and the first motor rotates the conveyor belt through a coupling and a connecting shaft; an assembly table is fixedly connected to the upper end of the conveyor belt; a plurality of first hydraulic cylinders are fixedly connected in the assembly table; a clamping strip is fixedly connected to the first hydraulic cylinder. The first hydraulic cylinder causes the clamping strip to clamp the workpiece placed on the assembly table, and the first motor causes the conveyor belt to rotate, thereby causing the workpiece and the assembly table to displace together.

[0007] Preferably, the position adjustment assembly includes a fixed column, a slide groove, a top plate, a second hydraulic cylinder, a fixed plate, an electric slide rail, and an electric slider; the outer side of the conveyor belt is fixedly connected with a fixed column; a slide groove is provided inside the fixed column; the upper end of the fixed column is fixedly connected with a top plate; the lower end of the top plate is fixedly connected with a second hydraulic cylinder. The second hydraulic cylinder pushes the fixed plate to lower the tool and the nozzle.

[0008] Preferably, the lower end of the second hydraulic cylinder is fixedly connected to a fixed plate that can slide in the slide groove; the lower end of the fixed plate is fixedly connected to an electric slide rail; the electric slide rail is electrically connected to an electric slider. The electric slider slides in the electric slide rail to move the tool and the nozzle forward and backward.

[0009] Preferably, the angle adjustment assembly includes a first fixed frame, a first rotating shaft, a second motor, a second fixed frame, a second rotating shaft, a third motor, a first fixed disk, a second fixed disk, a tool, a nozzle, a gas pipe, a dry ice storage box, and a high-pressure gas tank; the lower end of the electric slider is fixedly connected to the first fixed frame; the first rotating shaft is rotatably connected in the first fixed frame; the front end of the first rotating shaft is rotatably connected to the second motor through a coupling. The second motor rotates the second fixed frame through the first rotating shaft to change the angle of the tool and the nozzle.

[0010] Preferably, the lower end of the first rotating shaft is fixedly connected to a second fixed frame; the second rotating shaft is rotatably connected in the second fixed frame; one side of the second rotating shaft is rotatably connected to a third motor through a coupling; the lower end of the second rotating shaft on one side is fixedly connected to a first fixed disk; the lower end of the second rotating shaft on the other side is fixedly connected to a second fixed disk. The third motor rotates the first fixed disk and the second fixed disk through the second rotating shaft to change the angle of the tool and the nozzle.

[0011] Preferably, a tool is fixedly connected inside the first fixed disk; a nozzle is fixedly connected inside the second fixed disk; an air supply pipe is fixedly connected to the nozzle; one end of the air supply pipe is fixedly connected to a dry ice storage box; one end of the dry ice storage box is fixedly connected to a high-pressure gas tank. The tool can cut off the gate as the tool moves forward and backward, and when the high-pressure gas in the high-pressure gas tank is released, the dry ice particles stored in the dry ice storage box are taken out together and sprayed out from the nozzle. Due to the extremely high speed and low temperature, the dry ice particles quickly vaporize and expand in volume when they come into contact with the surface of the workpiece, generating a huge peeling force, thereby removing the burrs on the surface of the workpiece.

[0012] Beneficial effects of the utility model:

[0013] 1. By setting up a sliding fixing mechanism, an angle adjustment mechanism and a dual-process mechanism, after the operator fixes the workpiece on the equipment, the equipment will first shear the gate on the workpiece and then remove the flash burrs of the workpiece, thereby reducing the number of operation steps. The use of high-speed spraying of dry ice particles to remove the flash burrs can avoid damage to the edge of the workpiece;

[0014] 2. The first hydraulic cylinder is used to clamp the workpiece placed on the assembly table with the clamping bar, and the first motor rotates the conveyor belt, so that the workpiece and the assembly table move together. When the workpiece is fixed, the workpiece will first move to the bottom of the tool with the assembly table, and then move to the bottom of the nozzle after the gate shearing is completed, so that the gate shearing and burr removal can be completed on the equipment at one time, thereby eliminating the step of transferring the workpiece and shortening the processing process;

[0015] 3. The second hydraulic cylinder pushes the fixed plate to lower the tool and the nozzle, and then the second motor rotates the second fixed frame through the first rotating shaft, and the third motor rotates the first fixed plate and the second fixed plate through the second rotating shaft to change the angle of the tool and the nozzle. After the angle is adjusted, the electric slider slides in the electric slide rail to move the tool and the nozzle back and forth, so that the tool shears the gate. When removing flash burrs, the high-pressure gas in the high-pressure gas tank brings out the dry ice particles stored in the dry ice storage box and sprays them out from the nozzle. The dry ice particles sprayed from the nozzle will quickly vaporize and expand in volume when they come into contact with the surface of the workpiece due to the extremely high speed and low temperature, generating a huge peeling force, thereby removing the burrs on the surface of the workpiece and avoiding damage to the edge of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 What is shown is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 What is shown is a schematic diagram of the assembly table structure of the utility model;

[0018] Figure 3 Shown is a schematic diagram of the fixed column structure of the utility model;

[0019] Figure 4 What is shown is the overall structural rear view of the utility model.

[0020] Explanation of the reference numerals: 1. assembly displacement component; 2. position adjustment component; 3. angle adjustment component; 101. conveyor belt; 102. first motor; 103. assembly table; 104. first hydraulic cylinder; 105. clamping strip; 201. fixed column; 202. slide groove; 203. top plate; 204. second hydraulic cylinder; 205. fixed plate; 206. electric slide rail; 207. electric slider; 301. first fixed frame; 302. first rotating shaft; 303. second motor; 304. second fixed frame; 305. second rotating shaft; 306. third motor; 307. first fixed disk; 308. second fixed disk; 309. tool; 310. nozzle; 311. gas pipe; 312. dry ice storage box; 313. high-pressure gas tank. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0022] See also Figure 1-2 The utility model provides an embodiment: an injection mold gate shearing device capable of removing flash burrs comprises an assembly displacement component 1, a position adjustment component 2, and an angle adjustment component 3; the upper end of the assembly displacement component 1 is provided with a position adjustment component 2 for adjusting the processing position; the position adjustment component 2 is provided with an angle adjustment component 3 for adjusting the processing angle. The assembly displacement component 1 is used to fix and adjust the position of the workpiece; the position adjustment component 2 is used to adjust the position of the tool 309 and the nozzle 310, and the angle adjustment component 3 is used to adjust the angle of the tool 309 and the nozzle 310. The assembly displacement component 1 includes a conveyor belt 101, a first motor 102, an assembly platform 103, a first hydraulic cylinder 104, and a clamping strip 105; a first motor 102 is provided on one side of the conveyor belt 101, and the first motor 102 rotates the conveyor belt 101 through a coupling and a connecting shaft; the upper end of the conveyor belt 101 is fixedly connected to the assembly platform 103; a plurality of first hydraulic cylinders 104 are fixedly connected in the assembly platform 103; and a clamping strip 105 is fixedly connected to the first hydraulic cylinder 104. The first hydraulic cylinder 104 causes the clamping strip 105 to clamp the workpiece placed on the assembly platform 103, and the first motor 102 causes the conveyor belt 101 to rotate, so that the workpiece and the assembly platform 103 are displaced together.

[0023] See also Figure 3-4In this embodiment, the position adjustment assembly 2 includes a fixed column 201, a slide groove 202, a top plate 203, a second hydraulic cylinder 204, a fixed plate 205, an electric slide rail 206, and an electric slider 207; the fixed column 201 is fixedly connected to the outer side of the conveyor belt 101; the slide groove 202 is provided in the fixed column 201; the top plate 203 is fixedly connected to the upper end of the fixed column 201; the second hydraulic cylinder 204 is fixedly connected to the lower end of the top plate 203. The second hydraulic cylinder 204 pushes the fixed plate 205 to lower the tool 309 and the nozzle 310. The lower end of the second hydraulic cylinder 204 is fixedly connected to the fixed plate 205 that can slide in the slide groove 202; the lower end of the fixed plate 205 is fixedly connected to the electric slide rail 206; the electric slider 207 is electrically connected to the electric slide rail 206. The electric slider 207 slides in the electric slide rail 206 to move the tool 309 and the nozzle 310 forward and backward. The angle adjustment assembly 3 includes a first fixed frame 301, a first rotating shaft 302, a second motor 303, a second fixed frame 304, a second rotating shaft 305, a third motor 306, a first fixed plate 307, a second fixed plate 308, a tool 309, a nozzle 310, a gas pipe 311, a dry ice storage box 312, and a high-pressure gas tank 313; the first fixed frame 301 is fixedly connected to the lower end of the electric slider 207; the first rotating shaft 302 is rotatably connected in the first fixed frame 301; the front end of the first rotating shaft 302 is rotatably connected to the second motor 303 through a coupling. The second motor 303 rotates the second fixed frame 304 through the first rotating shaft 302 to change the angles of the tool 309 and the nozzle 310. The lower end of the first rotating shaft 302 is fixedly connected to the second fixed frame 304; the second rotating shaft 305 is rotatably connected in the second fixed frame 304; one side of the second rotating shaft 305 is rotatably connected to the third motor 306 through a coupling; the lower end of the second rotating shaft 305 on one side is fixedly connected to the first fixed disk 307; the lower end of the second rotating shaft 305 on the other side is fixedly connected to the second fixed disk 308. The third motor 306 rotates the first fixed disk 307 and the second fixed disk 308 through the second rotating shaft 305 to change the angle of the tool 309 and the nozzle 310. The tool 309 is fixedly connected in the first fixed disk 307; the nozzle 310 is fixedly connected in the second fixed disk 308; the nozzle 310 is fixedly connected to the gas pipe 311; one end of the gas pipe 311 is fixedly connected to the dry ice storage box 312; one end of the dry ice storage box 312 is fixedly connected to the high-pressure gas tank 313. The cutter 309 can cut off the gate as the cutter 309 moves forward and backward. When the high-pressure gas in the high-pressure gas tank 313 is released, the dry ice particles stored in the dry ice storage box 312 are taken out together and sprayed out from the nozzle 310. Due to the extremely high speed and low temperature, the dry ice particles quickly vaporize and expand in volume when they come into contact with the surface of the workpiece, generating a huge peeling force, thereby removing burrs on the surface of the workpiece.

[0024] When working, the first hydraulic cylinder 104 causes the clamping bar 105 to clamp the workpiece placed on the assembly table 103, and the first motor 102 causes the conveyor belt 101 to rotate, so that the workpiece and the assembly table 103 move together. When the workpiece is fixed, the workpiece will first move to the bottom of the tool 309 along with the assembly table 103, and then move to the bottom of the nozzle 310 after the gate shearing is completed;

[0025] Then the second hydraulic cylinder 204 pushes the fixed plate 205 to lower the tool 309 and the nozzle 310, and then the second motor 303 rotates the second fixed frame 304 through the first rotating shaft 302, and the third motor 306 rotates the first fixed plate 307 and the second fixed plate 308 through the second rotating shaft 305 to change the angle of the tool 309 and the nozzle 310. After the angle is adjusted, the electric slider 207 slides in the electric slide rail 206 to move the tool 309 and the nozzle 310 back and forth, so that the tool 309 shears the gate. When removing the flash burrs, the high-pressure gas in the high-pressure gas tank 313 brings out the dry ice particles stored in the dry ice storage box 312 and sprays them out from the nozzle 310. The dry ice particles sprayed from the nozzle 310 will quickly vaporize and expand in volume when they come into contact with the surface of the workpiece due to the extremely high speed and low temperature, generating a huge peeling force, thereby causing the burrs on the surface of the workpiece to fall off.

[0026] Through the above steps, a sliding fixing mechanism, an angle adjustment mechanism and a dual-process mechanism are set, so that after the operator fixes the workpiece on the equipment, the equipment will first shear the gate on the workpiece and then remove the flash burrs of the workpiece, thereby reducing the number of operating steps. In addition, the method of removing the flash burrs by high-speed spraying of dry ice particles can avoid the problem of damage to the edge of the workpiece.

[0027] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. A gate shearing device for an injection mold capable of removing burrs, comprising an assembly displacement component (1); characterized in that: The assembly displacement assembly (1) also includes a position adjustment component (2) and an angle adjustment component (3); the upper end of the assembly displacement assembly (1) is provided with a position adjustment component (2) for adjusting the processing position; the position adjustment component (2) is provided with an angle adjustment component (3) for adjusting the processing angle; the assembly displacement assembly (1) includes a conveyor belt (101), a first motor (102), an assembly table (103), a first hydraulic cylinder (104), and a clamping strip (105); a first motor (102) is provided on one side of the conveyor belt (101), and the first motor (102) rotates the conveyor belt (101) through a coupling and a connecting shaft; the upper end of the conveyor belt (101) is fixedly connected to the assembly table (103); the assembly table (103) is provided inside A plurality of first hydraulic cylinders (104) are fixedly connected; a clamping strip (105) is fixedly connected to the first hydraulic cylinder (104); the position adjustment component (2) comprises a fixed column (201), a slide groove (202), a top plate (203), a second hydraulic cylinder (204), a fixed plate (205), an electric slide rail (206), and an electric slide block (207); a fixed column (201) is fixedly connected to the outer side of the conveyor belt (101); a slide groove (202) is provided inside the fixed column (201); a top plate (203) is fixedly connected to the upper end of the fixed column (201); a second hydraulic cylinder (204) is fixedly connected to the lower end of the top plate (203); a second hydraulic cylinder (204) is fixedly connected to the lower end of the second hydraulic cylinder (204) which can slide in the slide groove (202); The fixing plate (205) is movable; the lower end of the fixing plate (205) is fixedly connected to an electric slide rail (206); the electric slide rail (206) is electrically connected to an electric slider (207); the angle adjustment component (3) includes a first fixing frame (301), a first rotating shaft (302), a second motor (303), a second fixing frame (304), a second rotating shaft (305), a third motor (306), a first fixing plate (307), a second fixing plate (308), a tool (309), a nozzle (310), an air pipe (311), a dry ice storage box (312), and a high-pressure gas tank (313); the lower end of the electric slider (207) is fixedly connected to the first fixing frame (301); the first fixing frame (30 1) a first rotating shaft (302) is rotatably connected therein; the front end of the first rotating shaft (302) is rotatably connected to a second motor (303) via a coupling; the lower end of the first rotating shaft (302) is fixedly connected to a second fixed frame (304); the second rotating shaft (305) is rotatably connected thereinto the second fixed frame (304); one side of the second rotating shaft (305) is rotatably connected to a third motor (306) via a coupling; the lower end of the second rotating shaft (305) on one side is fixedly connected to a first fixed disk (307); the lower end of the second rotating shaft (305) on the other side is fixedly connected to a second fixed disk (308); a tool (309) is fixedly connected inside the first fixed disk (307); a nozzle (310) is fixedly connected inside the second fixed disk (308); The nozzle (310) is fixedly connected with an air delivery pipe (311); one end of the air delivery pipe (311) is fixedly connected with a dry ice storage box (312); and one end of the dry ice storage box (312) is fixedly connected with a high-pressure gas tank (313).