Water gap removing device for injection-molded toy parts

By designing a sprue removal device for injection molded toy parts, and utilizing a pen-shaped cylinder and multiple sets of sprue removal blades, the device achieves comprehensive and precise removal of sprue marks from batches of injection molded toy parts. This solves the efficiency and speed problems of existing equipment and improves removal efficiency and stability.

CN224130360UActive Publication Date: 2026-04-17KUNSHAN HAIHUI PRECISION MFG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
KUNSHAN HAIHUI PRECISION MFG CO LTD
Filing Date
2025-05-22
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

Existing injection molding toy shell sprue removal equipment can only process one group of toys at a time, and can only remove sprues from one side of the toy shell, resulting in low batch removal efficiency and speed.

Method used

A device for removing sprue marks from injection-molded toy parts was designed. It uses a pen-shaped cylinder to drive a support guide seat and multiple sets of sprue removal cutters. Through the cooperation of a guide fixture and transmission gears, it can achieve precise removal of sprue marks from batches of injection-molded toy parts.

Benefits of technology

It improves the efficiency and accuracy of removing external sprues from mass-produced injection molded toy parts, and enhances the transmission stability and power utilization efficiency of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an injection molding toy part water gap removing device which comprises a material guiding sliding seat, a material guiding sliding groove formed in the inner end face of the material guiding sliding seat, an L-shaped supporting plate arranged at the position, close to the rear portion, of the upper end face of the material guiding sliding seat, and two sets of linear sliding rails arranged on the front end face of the L-shaped supporting plate. According to the water gap removing device, when water gaps of batch injection molding toy workpieces are removed, the pen-shaped air cylinder can drive the supporting guide seat and the five groups of water gap removing cutters to circularly move up and down, so that the water gaps outside the batch injection molding toy workpieces are accurately and stably removed in cooperation with material guiding of the material guiding jig; the efficiency of removing the external water gaps of the batch injection molding toy workpieces by the equipment is effectively improved, the transmission stability of the equipment can be effectively improved by meshing transmission among the five groups of transmission gears, and meanwhile, the utilization efficiency of the equipment to power is also improved.
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Description

Technical Field

[0001] This utility model relates to the technical field of injection molding toy processing equipment, specifically to a device for removing sprue marks from injection molded toy parts. Background Technology

[0002] Injection-molded toys are toys made using the injection molding process. They have advantages such as high production efficiency, low cost, and high precision, and are widely used in the toy manufacturing industry. After the injection-molded toys are produced, the sprue on the outside of the toys needs to be removed using sprue removal equipment. Sprue is caused by improper shape and size of the gate during the injection molding process, which prevents the gate from being completely disconnected, leaving excess glue on the product and forming sprue residue. Removing the sprue can improve the product's standard and the stability of its subsequent use.

[0003] However, existing injection molding toy shell sprue removal equipment can only remove sprues from a single group of injection molding toys at a time, reducing the efficiency of batch sprue removal. In addition, the cutters in the above equipment can only remove sprues from one side of the injection molding toy shell, reducing the speed of sprue removal. Therefore, there is an urgent need for an injection molding toy parts sprue removal device to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a device for removing sprue marks from injection-molded toy parts, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a sprue removal device for injection molded toy parts, comprising a guide slide, a guide groove formed on the inner end face of the guide slide, an L-shaped support plate near the rear of the upper end face of the guide slide, and two sets of linear slide rails on the front end face of the L-shaped support plate.

[0006] A material guiding fixture is slidably engaged with the inner end face of the material guiding slide via the material guiding groove, and five sets of injection molded toy workpieces are fixedly engaged at equal intervals on the inner end face of the material guiding fixture.

[0007] A pen-shaped cylinder, wherein the pen-shaped cylinder is fixedly mounted on the upper end face of the linear slide rail;

[0008] A sprue removal device is fixedly installed at the output end of the pen-shaped cylinder and is used to grind the sprue marks on the injection-molded toy workpiece.

[0009] Preferably, the sprue removal device includes a support guide seat, a cylinder holder is provided at the center of the upper end face of the support guide seat, and five sets of transmission gears are equidistantly and rotatably engaged at the inner end face of the support guide seat. Sprue removal cutters are provided at the center of the lower end faces of the five sets of transmission gears. A servo motor is provided on the upper end face of the support guide seat opposite the outermost transmission gear, and two sets of linear sliders are provided on the front end face of the support guide seat.

[0010] Preferably, the support guide seat is adapted to the linear slide rail via the linear slider and then slidably engaged with the front end face of the L-shaped support plate. The sliding adaptation between the linear slider and the linear slide rail can effectively improve the accuracy of the subsequent axial displacement of the support guide seat.

[0011] Preferably, the transmission gear, the sprue removal tool, and the injection molded toy workpiece are coaxially arranged, and the inner end face of the sprue removal tool is in close contact with the outer end face of the injection molded toy workpiece, which can effectively improve the accuracy of the sprue removal tool in removing the external sprue of the injection molded toy workpiece.

[0012] Preferably, the meshing connection between the five sets of transmission gears can effectively improve the stability of the transmission between the five sets of transmission gears, and also improve the power utilization efficiency of the equipment.

[0013] Preferably, the upper end face of the cylinder holder is fixedly connected to the output end of the pen-shaped cylinder, which facilitates the subsequent vertical displacement of the cylinder holder and the support guide by the pen-shaped cylinder, thereby improving the accuracy and stability of the subsequent gate removal tool in positioning and removing gates from the injection-molded toy workpiece.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. This utility model, by setting up a sprue removal device, enables the pen-shaped cylinder to drive the support guide and five sets of sprue removal tools to move up and down in a cyclical manner when removing sprues from batches of injection-molded toy workpieces. This, in conjunction with the material guiding fixture, allows for precise and stable removal of sprues from the exterior of the batches of injection-molded toy workpieces, effectively improving the efficiency of the equipment in removing sprues from batches of injection-molded toy workpieces. Furthermore, the meshing transmission between the five sets of transmission gears effectively improves the stability of the equipment's transmission and also enhances the efficiency of the equipment's power utilization. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of the present utility model;

[0017] Figure 2 This is a side view of the main body of this utility model;

[0018] Figure 3This is a schematic diagram of the water outlet removal device of this utility model;

[0019] Figure 4 This is a side view of the sprue removal device of this utility model.

[0020] In the diagram: 1-pen-shaped cylinder, 2-sprue removal device, 3-guide slide, 4-guide chute, 5-injection molded toy workpiece, 6-guide fixture, 7-linear slide rail, 8-L-shaped support plate, 21-cylinder holder, 22-servo motor, 23-transmission gear, 24-sprue removal tool, 25-linear slider, 26-support guide. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-4 This utility model provides an embodiment of a device for removing sprue marks from injection-molded toy parts, comprising a guide slide 3, a guide groove 4 formed on the inner end face of the guide slide 3, an L-shaped support plate 8 provided on the upper end face of the guide slide 3 near the rear, and two sets of linear slide rails 7 provided on the front end face of the L-shaped support plate 8.

[0023] The material guide fixture 6 is slidably engaged with the inner end face of the material guide slide 3 via the material guide groove 4, and five sets of injection molded toy workpieces 5 are fixedly engaged at equal intervals on the inner end face of the material guide fixture 6.

[0024] Pen-shaped cylinder 1 is fixedly mounted on the upper end face of linear slide rail 7;

[0025] The sprue removal device 2 is fixedly installed at the output end of the pen-shaped cylinder 1. The sprue removal device 2 is used to grind the sprues of the injection molded toy workpiece 5.

[0026] like Figure 3 and Figure 4 The sprue removal device 2 includes a support guide 26. A cylinder holder 21 is provided at the center of the upper end face of the support guide 26, and five sets of transmission gears 23 are equidistantly rotatably engaged at the inner end face of the support guide 26. Sprue removal cutters 24 are provided at the center of the lower end face of each of the five sets of transmission gears 23. A servo motor 22 is provided on the upper end face of the support guide 26 directly opposite the outermost transmission gear 23. Two sets of linear sliders 25 are provided on the front end face of the support guide 26.

[0027] like Figure 1 The support guide 26 is adapted to the linear slide rail 7 via the linear slider 25 and then slidably engaged with the front end face of the L-shaped support plate 8. The sliding adaptation between the linear slider 25 and the linear slide rail 7 can effectively improve the accuracy of the subsequent axial displacement of the support guide 26.

[0028] like Figure 1 and Figure 3 The transmission gear 23, the sprue removal tool 24, and the injection molded toy workpiece 5 are coaxially arranged, and the inner end face of the sprue removal tool 24 is in close contact with the outer end face of the injection molded toy workpiece 5, which can effectively improve the accuracy of the sprue removal tool 24 in removing the external sprue of the injection molded toy workpiece 5.

[0029] like Figure 3 The meshing connection between the five sets of transmission gears 23 can effectively improve the stability of the transmission between the five sets of transmission gears 23, and also improve the efficiency of the equipment in utilizing power.

[0030] like Figure 2 The upper end face of the cylinder holder 21 is fixedly connected to the output end of the pen-shaped cylinder 1, which facilitates the subsequent vertical displacement of the cylinder holder 21 and the support guide 26 by the pen-shaped cylinder 1, thereby improving the accuracy and stability of the subsequent gate removal tool 24 in positioning and removing the gate from the injection molded toy workpiece 5.

[0031] Working principle: Before removing the sprue from the injection-molded toy workpiece 5, the operator can position the guide module at the front of the guide slide 3. Then, the injection-molded toy workpiece 5, which needs to have its sprue removed, is positioned inside the guide fixture 6 by an external robotic arm. After positioning, the guide module can drive the guide fixture 6 to be positioned at the lower part of the sprue removal device 2. At this time, the pen-shaped cylinder 1 and the servo motor 22 are started. The pen-shaped cylinder 1 can drive the bottom support guide 26 to move down. At the same time, the servo motor 22 can drive the five sets of transmission gears 23 at the bottom to mesh and rotate, so that the five sets of transmission gears 23 can synchronously drive the bottom sprue removal cutter 24 to rotate. When the sprue removal cutter 24 moves down, it can be aligned with the outside of the injection-molded toy workpiece 5, and then the sprue on the outside of the injection-molded toy workpiece 5 is removed from top to bottom in an all-round way. Then, the pen-shaped cylinder 1 drives the sprue removal device 2 to reset, and the sprue removal operation on the injection-molded toy workpiece 5 is repeated.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for removing sprue marks from injection-molded toy parts, comprising a guide slide (3), a guide groove (4) being provided on the inner end face of the guide slide (3), and an L-shaped support plate (8) being provided on the upper end face of the guide slide (3) near the rear, and two sets of linear slide rails (7) being provided on the front end face of the L-shaped support plate (8), characterized in that: The material guide fixture (6) is slidably engaged with the inner end face of the material guide slide (3) through the material guide groove (4), and five sets of injection molded toy workpieces (5) are fixedly engaged at equal intervals on the inner end face of the material guide fixture (6). Pen-shaped cylinder (1), the pen-shaped cylinder (1) is fixedly disposed on the upper end face of the linear slide rail (7); A sprue removal device (2) is fixedly installed at the output end of the pen-shaped cylinder (1) and is used to grind the sprue of the injection-molded toy workpiece (5).

2. A water port removal device for injection molded toy parts as defined in claim 1, wherein: The sprue removal device (2) includes a support guide (26). A cylinder holder (21) is provided at the center of the upper end face of the support guide (26), and five sets of transmission gears (23) are equidistantly rotatably engaged at the inner end face of the support guide (26). Sprue removal cutters (24) are provided at the center of the lower end face of each of the five sets of transmission gears (23). A servo motor (22) is provided at the upper end face of the support guide (26) opposite to the outermost transmission gear (23). Two sets of linear sliders (25) are provided at the front end face of the support guide (26).

3. A water port removal device for injection molded toy parts as defined in claim 2, wherein: The support guide (26) is adapted to the linear slide rail (7) through the linear slider (25) and then slidably engaged with the front end face of the L-shaped support plate (8).

4. A water port removal device for injection molded toy parts as defined in claim 2, wherein: The transmission gear (23), the sprue removal tool (24), and the injection molded toy workpiece (5) are coaxially arranged, and the inner end face of the sprue removal tool (24) is fitted and connected to the outer end face of the injection molded toy workpiece (5).

5. A water port removal device for injection molded toy parts as defined in claim 2, wherein: The five sets of transmission gears (23) are meshed together.

6. A water port removal device for injection molded toy parts as defined in claim 2, wherein: The upper end face of the cylinder holder (21) is fixedly connected to the output end of the pen-shaped cylinder (1).