Novel plastic product gate mold internally-cutting mechanism

By designing a new type of in-mold cutting mechanism for plastic products, the mechanism utilizes the cutting oil circuit and hydraulic cylinder to drive the push rod, which in turn drives the push plate and the cutting blade to automatically remove residual plastic from the plastic part's inlet. This solves the problem of low efficiency in traditional manual removal and improves production yield and efficiency.

CN223573719UActive Publication Date: 2025-11-21KUNSHAN JIARUI ELECTRONIC TECH CO LTD
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Patent Information

Application Number
CN202423201046.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-24
Publication Date
2025-11-21
Estimated Expiration
2034-12-24

AI Technical Summary

Technical Problem

In traditional injection molds, residual plastic often remains at the injection port of the plastic product during mold closing and injection molding, which affects the assembly of the final product. Furthermore, manual removal is inefficient, resulting in a low yield rate.

Method used

A novel in-mold cutting mechanism for plastic products is designed, comprising a cutting oil circuit, an oil cylinder, a push rod, a push plate, and a cutter. The push rod is driven by hydraulic pressure to move the push plate and the cutter, automatically removing residual plastic at the plastic part's inlet, thus achieving automated removal.

Benefits of technology

It enables complete removal of the glue inlet position in plastic products, improving production yield and efficiency, and achieving automated removal of glue residue.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a novel plastic product gate mold internal cutting mechanism, which relates to the technical field of injection molds, and comprises a gate cutting component, and the gate cutting component comprises a cutter oil path, an oil path plug, an inlet / outlet, an oil cylinder, a push rod, a push plate, a stroke stop block, a return spring and a gate cutter. According to the novel plastic product gate mold internal cutting mechanism, compared with a traditional operation mode, according to the improved novel operation mode, after a plastic product is subjected to injection molding, an oil cylinder is driven by inlet and outlet oil pressure of a cutter oil way to drive a push rod to move upwards, the push rod drives push plates A and B to move upwards, and meanwhile cutters fixed to the push plates are in linkage; the cutter is arranged below the glue opening of the product body, the glue inlet of the plastic part is completely cut off through upward movement of the cutter, automation of glue opening removal is achieved, then the plastic part is ejected out and taken out through the mold ejection mechanism, and through automatic glue opening residue removal, the yield is increased, and meanwhile the production efficiency is improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to injection mold technical field, concretely is a new type plastic product glue mouth mould cutting mechanism. BACKGROUND

[0002] Injection mold is a tool for producing plastic products, and is also a tool for giving plastic products complete structure and accurate size, and injection molding is a processing method used when mass producing some parts with complex shapes. Specifically, after molten plastic is injected into a mold cavity by a high-pressure nozzle of an injection molding machine, the plastic is cooled and solidified to obtain a shaped product.

[0003] In the traditional operation mode, when the mold is closed and injection molded, the molten plastic flows into the mold cavity through the nozzle of the injection molding machine screw, and then is pressure-maintained and cooled to form a plastic part. The plastic part is then ejected by the mold ejection mechanism, and the glue port position of the plastic product is usually left with residual glue, which affects the assembly of the assembly. To solve this problem, manual removal of residual glue is required, which has low yield and low production efficiency.

[0004] Therefore, in view of the above problems, the existing structure is improved, and a new type of plastic product glue port mold cutting mechanism is provided. CONTENT OF THE UTILITY MODEL

[0005] The utility model aims at providing a new type of plastic product glue port mold cutting mechanism to solve the problems in the background art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a new type of plastic product glue port mold cutting mechanism, which comprises a glue port cutting assembly, the glue port cutting assembly comprises a cutter oil way, an oil way plug, an inlet and outlet, an oil cylinder, a push rod, a push plate, a stroke stop block, a return spring and a glue port cutter, the oil way plug is arranged at the end of the cutter oil way branch, the inlet and outlet are connected to the initial end of the cutter oil way, and the oil cylinder is connected to the end of the cutter oil way, the output end of the oil cylinder is fixedly connected with the push rod, the end of the push rod is fixedly connected with two AB push plates, the stroke stop block is arranged on the side surface of the push plate, the return spring is arranged in the middle of the push plate, and the glue port cutter is fixed on the peripheral wall of the push plate.

[0007] Further, the push plate is located inside the male mold plate, and the main flow channel is arranged inside the male mold plate.

[0008] Further, the end of the main flow channel is shaped into a plurality of product bodies, and the glue inlet at the connection between the product body and the main flow channel cooperates with the corresponding glue port cutter.

[0009] Further, the bottom of the male mold plate is fixed with a stand on both sides, and the bottom of the stand on both sides is fixed with a lower fixed plate.

[0010] Further, the opposite side of the station foot gap is provided with a thimble bottom plate, and the thimble bottom plate is provided with a thimble panel on the top.

[0011] Further, the upper fixed plate is provided above the lower fixed plate, and the bottom of the upper fixed plate is fixed with a female mold plate.

[0012] Further, the upper fixed plate is provided above the lower fixed plate, and the bottom of the upper fixed plate is fixed with a female mold plate.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1, the improved novel operation mode of the application compared with the traditional operation mode, after the plastic product injection molding, the oil cylinder is driven by the inlet and outlet oil pressure of the cutter oil way, the push rod is driven upward, the push rod drives the push plate A, B upward, and the cutter is fixed on the push plate, the cutter is below the glue port of the product body, the glue port position of the plastic part is completely cut off by the upward movement of the cutter, the glue port removal automation is realized, and the plastic part is ejected by the mold ejection mechanism, the glue port residue is removed by automation, the yield is improved, and the production efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is a whole structure schematic view of the utility model device;

[0016] Fig. 2 It is a glue port cutting assembly structure schematic view of the utility model;

[0017] Fig. 3 It is a whole part structure schematic view of the utility model.

[0018] In the drawing: 1, glue port cutting assembly;101, cutter oil way;102, oil way plug;103, inlet and outlet;104, oil cylinder;105, push rod;106, push plate;107, stroke stopper;108, return spring;109, glue port cutter;2, male mold plate;3, main flow channel;4, product body;5, station foot;6, lower fixed plate;7, thimble bottom plate;8, thimble panel;9, upper fixed plate;10, female mold plate;11, positioning ring;12, squirt. DETAILED DESCRIPTION

[0019] The embodiment of the utility model is further described in detail below in combination with the drawings and examples. The following examples are used to illustrate the utility model, but cannot be used to limit the scope of the utility model.

[0020] As Figs. 1-3As shown, a new plastic product glue port in-mold cutting mechanism, including glue port cutting assembly 1, glue port cutting assembly 1 includes cutter oil circuit 101, oil circuit plug 102, inlet and outlet 103, oil cylinder 104, push rod 105, push plate 106, stroke stop block 107, return spring 108 and glue port cutter 109, the branch end of cutter oil circuit 101 is provided with oil circuit plug 102, and the initial end of cutter oil circuit 101 is connected with inlet and outlet 103, and the end of cutter oil circuit 101 is connected with several oil cylinders 104, the output end of oil cylinder 104 is fixedly connected with push rod 105, and the end of push rod 105 is fixedly connected with AB two push plates 106, and the side of push plate 106 is provided with stroke stop block 107, the middle of push plate 106 is provided with return spring 108, and the peripheral wall of push plate 106 is fixedly provided with glue port cutter 109, the improved new operation mode of the present application is compared with the traditional operation mode, after the plastic product is injection molded, the inlet and outlet 103 of the cutter oil circuit 101 drives the oil cylinder 104 to drive the push rod 105 to move upward, the push rod 105 drives the push plate 106A, B to move upward, and the cutter linkage fixed to the push plate 106, the cutter is below the glue port of the product body 4, the glue port position of the plastic part is completely cut off by the upward movement of the cutter, the glue port removal automation is realized, and then the plastic part is ejected by the mold ejection mechanism, the glue port residue is removed automatically, the yield is improved, and the production efficiency is improved;

[0021] As Fig. 1 shown, the push plate 106 is located inside the male mold plate 2, and the male mold plate 2 is provided with a main runner 3 inside, the end of the main runner 3 is formed with several product bodies 4 in the cavity, the glue inlet at the connection between the product body 4 and the main runner 3 is matched with the corresponding glue port cutter 109, the bottom of the male mold plate 2 is fixed with two side feet 5, the bottom of the two side feet 5 is fixed with a lower fixed plate 6, the opposite side of the two side feet 5 is provided with a needle bottom plate 7 in the gap, the top of the needle bottom plate 7 is provided with a needle face plate 8, the upper fixed plate 9 is provided above the lower fixed plate 6, the bottom of the upper fixed plate 9 is fixed with a female mold plate 10, the middle of the upper fixed plate 9 is provided with a positioning ring 11, the middle of the positioning ring 11 is nested with a nipple 12, and the injection molding machine screw nozzle is communicated with the main runner 3 through the nipple 12.

[0022] Working principle: when using the new plastic product glue port in-mold cutting mechanism, the improved new operation mode of the present application is compared with the traditional operation mode, after the plastic product is injection molded, the inlet and outlet 103 of the cutter oil circuit 101 drives the oil cylinder 104 to drive the push rod 105 to move upward, the push rod 105 drives the push plate 106A, B to move upward, and the cutter linkage fixed to the push plate 106, the cutter is below the glue port of the product body 4, the glue port position of the plastic part is completely cut off by the upward movement of the cutter, the glue port removal automation is realized, and then the plastic part is ejected by the mold ejection mechanism, the glue port residue is removed automatically, the yield is improved, and the production efficiency is improved.

[0023] Embodiments of the present application are presented by way of example and description only and are not intended to be limiting of the present application to the form disclosed. Many modifications and variations of the present application are possible in light of this disclosure. It is intended that the present application cover modifications and variations of this application provided they come within the scope of the appended claims and their equivalents.

Claims

1. A new type of plastic product die opening cutting mechanism, comprising a die opening cutting assembly (1), characterized in that, The glue port cutting assembly (1) includes a cutter oil circuit (101), an oil circuit plug (102), an inlet and outlet (103), a cylinder (104), a push rod (105), a push plate (106), a stroke stopper (107), a return spring (108) and a glue port cutter (109), the cutter oil circuit (101) is provided with an oil circuit plug (102) at the branch end, and the initial end of the cutter oil circuit (101) is connected with an inlet and outlet (103), and the end of the cutter oil circuit (101) is connected with several oil cylinders (104), the output end of the oil cylinder (104) is fixedly connected with a push rod (105), and the end of the push rod (105) is fixedly connected with two AB push plates (106), and the side of the push plate (106) is provided with a stroke stopper (107), the middle of the push plate (106) is provided with a return spring (108), and the peripheral wall of the push plate (106) is fixedly provided with a glue port cutter (109).

2. A novel in-mold cutting mechanism for plastic product opening according to claim 1, characterized in that, The push plate (106) is located inside the male mold plate (2), and the male mold plate (2) is provided with a main runner (3) inside.

3. A novel in-mold cutting mechanism for plastic product opening according to claim 2, characterized in that, The end of the main runner (3) is formed with several product bodies (4), and the glue inlet at the connection between the product body (4) and the main runner (3) is matched with the corresponding glue port cutter (109).

4. A novel in-mold cutting mechanism for plastic product opening according to claim 2, characterized in that, The bottom of the male mold plate (2) is fixedly provided with a stand foot (5) on both sides, and the bottom of the stand foot (5) on both sides is fixedly provided with a lower fixed plate (6).

5. A novel in-mold cutting mechanism for plastic product opening according to claim 4, characterized in that, The opposite faces of the stand feet (5) on both sides are provided with a thimble bottom plate (7) in the gap, and the top of the thimble bottom plate (7) is provided with a thimble face plate (8).

6. A novel in-mold cutting mechanism for plastic product opening according to claim 4, characterized in that, The upper fixed plate (9) is provided above the lower fixed plate (6), and the bottom of the upper fixed plate (9) is fixedly provided with a female mold plate (10).

7. A novel in-mold cutting mechanism for plastic product opening according to claim 6, characterized in that, The middle of the upper fixed plate (9) is provided with a positioning ring (11), the middle of the positioning ring (11) is nested with a nipple (12), and the screw rod nozzle of the injection molding machine is connected with the main runner (3) through the nipple (12).