Novel in-mold automatic water gap cutting mechanism

Abstract

The utility model discloses a novel in-mold self-cutting water gap mechanism, which belongs to the technical field of injection molds and comprises a lower mold, a sliding groove is arranged in the middle of the top of the lower mold, a sliding block is arranged in an inner cavity of the sliding groove, a flow channel is arranged at the top of the sliding block, forming cavities are arranged on the periphery of the top of the lower mold, and the flow channel is communicated with the flow channel. And a water gap is formed in the joint of the runner and the forming cavity, a driving mechanism is arranged on one side of the sliding block, and the driving mechanism comprises a through groove formed in the top of the sliding block. Through the structural design of the through groove and the shifting block, after a plastic material is shaped in the forming cavity, the upper mold can drive the shifting block to ascend, at the moment, due to the fact that the through groove and the shifting block are obliquely arranged, when the shifting block ascends, the shifting block and the through groove abut against each other, the sliding block is driven to transversely move, and then the runner and the forming cavity can deviate; therefore, the plastic material at the nozzle is cut off, and the purpose of cutting the nozzle is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to a novel in-mold self-cutting water outlet mechanism. Background Art

[0002] The sprue in an injection mold is usually the part used to inject molten plastic material into the mold. It is usually located on one side or the top of the mold. The molten plastic material is injected into the mold cavity through the sprue. After the product cools down, the molded plastic product is taken out. Once the plastic product is molded, it is usually necessary to cut off the excess plastic material at the sprue.

[0003] There are many ways to cut the water outlet. The common method includes manual cutting. However, there are errors and unstable factors in human operation, which can easily lead to product quality problems and are not conducive to controlling product consistency and quality stability.

[0004] Therefore, those skilled in the art provide a novel in-mold self-cutting water outlet mechanism to solve the problems mentioned in the above-mentioned prior art. Utility Model Content

[0005] In order to solve the above problems, the utility model provides a novel in-mold self-cutting water outlet mechanism.

[0006] The utility model is realized by the following technical solutions:

[0007] A novel in-mold self-cutting water outlet mechanism comprises a lower mold, a slide groove is provided at the center of the top of the lower mold, a slider is provided in the inner cavity of the slide groove, a flow channel is provided on the top of the slider, molding cavities are provided on all sides of the top of the lower mold, water outlets are provided at the interfaces of the flow channel and the molding cavity, a driving mechanism is provided on one side of the slider, the driving mechanism comprises a through groove provided on the top of the slider, a shift block is provided in the inner cavity of the through groove, and the shift block is fixedly assembled on the bottom of the upper mold.

[0008] Preferably, the through slot and the shift block are both arranged obliquely, and the shift block is fitted to the inner wall of the through slot cavity.

[0009] Preferably, the sliding block is slidably connected to the inner cavity of the sliding groove.

[0010] Preferably, the flow channel and the inner cavity of the molding cavity are both connected through a water outlet.

[0011] Preferably, a placement groove is provided at the bottom of the slide groove, and the size and shape of the placement groove match those of the shifting block.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model adopts the structural design of the through groove and the shift block. When the plastic material is finalized in the molding cavity, the upper mold will drive the shift block to rise. At this time, since the through groove and the shift block are both inclined, when the shift block rises, the shift block and the through groove will conflict with each other, thereby driving the slider to move laterally, and then the flow channel and the molding cavity can be offset, thereby cutting off the plastic material at the water outlet and achieving the purpose of cutting the water outlet. The utility model can overcome the problem of errors and unstable factors in human operation in the prior art, which easily leads to poor product quality, and can ensure that the position, size and shape of the incision are consistent, thereby improving the consistency and quality stability of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the cross-sectional structure of the slider of the utility model;

[0016] Figure 3 It is a schematic diagram of the lower mold structure of the utility model.

[0017] In the figure: 1. lower mold; 2. slide groove; 3. slider; 4. runner; 5. molding cavity; 6. through groove; 7. shift block; 8. placement groove. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figures 1 to 3 , the utility model provides embodiments:

[0020] The embodiment of the present application discloses a novel in-mold self-cutting water outlet mechanism, including a lower mold 1, a slide groove 2 is opened in the center of the top of the lower mold 1, a slider 3 is provided in the inner cavity of the slide groove 2, the slider 3 is slidably connected to the inner cavity of the slide groove 2, a flow channel 4 is opened on the top of the slider 3, molding cavities 5 are opened on all sides of the top of the lower mold 1, water outlets are provided at the interfaces of the flow channel 4 and the molding cavity 5, the inner cavities of the flow channel 4 and the molding cavity 5 are connected through the water outlets, a driving mechanism is provided on one side of the slider 3, the driving mechanism includes a through groove 6 opened at the top of the slider 3, a shift block 7 is provided in the inner cavity of the through groove 6, and the shift block 7 is fixedly assembled at the bottom of the upper mold.

[0021] As a technical optimization solution of the utility model, the melted plastic material will pass through the runner 4 and the nozzle in turn and enter the inner cavity of the molding cavity 5. After the plastic material is molded, the runner 4 and the plastic product in the molding cavity 5 are still a whole. At this time, the runner 4 and the molding cavity 5 can be offset by the driving mechanism, so that the plastic product is cut off from the nozzle, thereby realizing automatic nozzle cutting, which can effectively improve production efficiency, reduce costs, and improve product quality and consistency.

[0022] The through slot 6 and the shifting block 7 are both arranged obliquely, and the shifting block 7 is fitted to the inner wall of the inner cavity of the through slot 6 .

[0023] As a technical optimization solution of the utility model, by setting an inclined shift block 7 in the inclined through groove 6, when the shift block 7 rises, the shift block 7 and the through groove 6 will conflict with each other. Such a design can control the lateral movement of the slider 3 through the movement of the shift block 7 under specific conditions, thereby achieving the expected movement effect.

[0024] A placement groove 8 is provided at the bottom of the slide groove 2 , and the size and shape of the placement groove 8 and the shifting block 7 match each other.

[0025] As a technical optimization solution of the utility model, when the upper mold and the lower mold 1 are closed, the upper mold will drive the shift block 7 to descend, and the placement groove 8 can conveniently accommodate the shift block 7, thereby avoiding interference when the shift block 7 descends.

[0026] Working principle: With the help of the inclined setting of the shift block 7 and the through groove 6, when the plastic product is formed, the upper mold will drive the shift block 7 to rise. At this time, the shift block 7 and the through groove 6 will conflict with each other, thereby driving the slider 3 to move laterally, so that the flow channel 4 and the molding cavity 5 are misaligned, and then the plastic material can be cut off from the water outlet, thereby realizing automatic water cutting. Such a design can accurately control the position and cutting timing of the water cutting, ensure the accuracy and consistency of the incision, and no human intervention is required, which helps to improve production efficiency. At the same time, the automatic water cutting can ensure that the incision is neat and smooth, avoid the problem of inaccurate or poor quality of the incision caused by human factors, and improve the quality and appearance of the product.

[0027] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0028] In summary, the above are only preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention. All equivalent changes and modifications to the shapes, structures, features and spirits described in the claims of the present invention should be included in the claims of the present invention.

Claims

1. A novel in-mold self-cutting nozzle mechanism, comprising a lower mold (1), characterized in that: A slide groove (2) is provided at the center of the top of the lower mold (1), a slider (3) is provided in the inner cavity of the slide groove (2), a flow channel (4) is provided at the top of the slider (3), a molding cavity (5) is provided on all sides of the top of the lower mold (1), a water outlet is provided at the interface between the flow channel (4) and the molding cavity (5), a driving mechanism is provided on one side of the slider (3), the driving mechanism includes a through groove (6) provided at the top of the slider (3), a shifting block (7) is provided in the inner cavity of the through groove (6), and the shifting block (7) is fixedly assembled at the bottom of the upper mold.

2. A novel in-mold self-cutting nozzle mechanism according to claim 1, characterized in that: The through slot (6) and the shifting block (7) are both arranged at an angle, and the shifting block (7) is fitted to the inner wall of the inner cavity of the through slot (6).

3. A novel in-mold self-cutting nozzle mechanism according to claim 1, characterized in that: The sliding block (3) is slidably connected to the inner cavity of the sliding groove (2).

4. A novel in-mold self-cutting nozzle mechanism according to claim 1, characterized in that: The flow channel (4) and the inner cavity of the molding cavity (5) are both connected via a water outlet.

5. A novel in-mold self-cutting nozzle mechanism according to claim 1, characterized in that: A placement groove (8) is provided at the bottom of the slide groove (2), and the placement groove (8) matches the size and shape of the shifting block (7).

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