Mould without damaging product during demoulding

Abstract

The utility model discloses a mold without damaging a product during demolding. The mold comprises a lower mold and an upper mold, the lower die comprises a bottom frame, a lower die block and a lower die core. The lower module is arranged at the top of the underframe; the lower die core is arranged at the top of the lower die block; a side mold core is arranged on the outer side of the lower mold core; the side mold core is slidably arranged at the top of the lower mold block; a guide hole is formed in the side mold core; an injection opening is formed in the inner side surface of the side mold core; the upper die comprises a top frame, a shunting module, a shunting box, an upper module and an upper die core; an injection molding opening is formed in the top frame; the shunting module is arranged at the bottom of the top frame; the shunting box is arranged in the shunting module and communicates with the injection molding opening; the upper module is arranged at the bottom of the shunting module; a guide column is arranged at the bottom of the upper module; the upper die core is arranged at the bottom of the upper die block; a shunting pipe is arranged at the top of the upper mold core; the flow dividing pipe is arranged in the upper module, and the top of the flow dividing pipe communicates with the bottom of the flow dividing box. According to the utility model, the demoulding process is convenient and safe.

Description

Technical Field

[0001] This utility model belongs to the field of mold technology, specifically relating to a mold that does not damage the product during demolding. Background Technology

[0002] Injection molds are tools used to produce plastic products, and they also give plastic products a complete structure and precise dimensions. Injection molding is a processing method used to mass-produce certain complex-shaped parts. Specifically, it refers to injecting heated and molten plastic into the mold cavity under high pressure by an injection molding machine, and then obtaining the molded product after cooling and solidification.

[0003] Existing injection molds typically use a single injection port to directly inject raw materials into the mold cavity for molding. When the product has a rectangular frame or other structure that results in a long overall mold runner, unevenness in the injection molding process can easily occur in certain areas. Furthermore, when the injection mold has only one injection port, the product is only clamped between the upper and lower mold runners after molding. The degree of adhesion between different parts of the product and the upper and lower mold runners varies, and the product will be subjected to uneven pulling forces between the upper and lower molds when the mold is opened. When the product is a narrow frame product, it is easy for the product to bend or twist due to demolding. Utility Model Content

[0004] This invention provides a mold that allows for product demolding without damaging the product in order to solve the above-mentioned technical problems.

[0005] The solution adopted by this utility model to achieve its technical effect is as follows:

[0006] A mold that demolds without damaging the product includes a lower mold and an upper mold. The lower mold includes a base frame, a lower module, a lower mold core, and side mold cores. The lower module is located on top of the base frame. The lower mold core is located on top of the lower module. Each of the four sides of the lower mold core has a side mold core on its outer side. The side mold cores are slidably located on top of the lower module. The side mold cores have guide holes that slope outwards from top to bottom. The inner surface of the side mold cores has an injection port. The upper mold includes a top frame, a flow distribution module, a flow distribution box, an upper module, an upper mold core, and a flow distribution pipe. The top frame has an injection port. The flow distribution module is located at the bottom of the top frame. The flow distribution box is located inside the flow distribution module. The manifold box is connected to the injection port; the upper module is located at the bottom of the manifold module; the bottom of the upper module is provided with a guide post corresponding to the guide hole; the upper mold core is located at the bottom of the upper module; the top of each of the four sides of the upper mold core is provided with the manifold pipe; the manifold pipe is located inside the upper module, and the top of the manifold pipe is connected to the bottom of the manifold box; the upper module is pressed against the top of the lower module, so that the guide post is slidably inserted into the guide hole, so that the upper mold core, the lower mold core, and the side mold core are closed to form a mold cavity; the mold cavity is connected to the injection port; the injection port is connected to the bottom outlet of the manifold pipe.

[0007] Preferably, the top of the lower module is provided with a movable groove; the top of the side of the lower mold core is provided with a positioning step; when the mold is closed, the side mold core is slidably positioned on the positioning step and sealed between the side of the lower mold core and the side of the upper mold core; a movable seat is provided on one side of the side mold core; the movable seat is slidably disposed on the movable groove, and the guide hole is disposed on the movable seat.

[0008] Preferably, the movable groove is provided with a directional rail; the bottom of the movable seat is provided with a directional groove; the directional groove is slidably sleeved on the outside of the directional rail.

[0009] Preferably, the movable groove is provided with an anti-slip groove.

[0010] Preferably, a pressure-relieving return spring is provided between the movable seat and the lower mold core.

[0011] Preferably, at least two of the diversion pipes are provided on the top of each of the four sides of the upper mold core.

[0012] Preferably, the top of the side mold core is provided with a plurality of flow channels; each flow channel is connected to a flow pipe; both ends of the flow channels are provided with injection channels; each injection channel is connected to an injection port.

[0013] The beneficial effects of this utility model are as follows: injection molding is carried out on four sides, and the injection is carried out on the outer side of the injection port, so that the four frames of the rectangular frame product can be injected with materials evenly and formed synchronously; the injection port is set on the side mold core, and the side mold core is driven to close the mold by the guide post at the bottom of the upper module. When the upper module and the lower module are separated, the side mold core also automatically moves away from the lower module, making demolding convenient. When the upper module is separated, the side mold core clamps the product to prevent it from being pulled. After the upper module is separated, the side mold core is driven to separate from the product on both sides by the guide post. The injection port automatically separates from the outside of the product from the four sides, and multiple injection gate points are separated, avoiding bending and twisting of the narrow frame product due to the large demolding force. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall mold disclosed in an embodiment of the present utility model;

[0015] Figure 2 This is a schematic diagram of the interior of the upper mold disclosed in an embodiment of the present utility model;

[0016] Figure 3 This is a schematic diagram of the interior of the lower mold disclosed in an embodiment of this utility model;

[0017] Figure 4 This is a schematic diagram of the side mold core and the movable groove disclosed in the embodiment of this utility model;

[0018] Figure 5 for Figure 4 Enlarged diagram of area A.

[0019] Labeling instructions: 1-Base frame, 2-Lower module, 3-Lower mold core, 4-Side mold core, 5-Injection port, 6-Top frame, 7-Diverter module, 8-Diverter box, 9-Upper module, 10-Upper mold core, 11-Diverter pipe, 12-Injection port, 13-Guide post, 14-Moving seat, 15-Directional guide rail, 16-Anti-slip groove, 17-Relief and reset spring, 18-Diverter channel, 19-Injection channel. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model. It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or may have an intervening element present. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or may have an intervening element present. When an element is referred to as being "fixedly connected to" another element, it can be a common fixing connection method such as welding, bolting, or gluing.

[0021] Please refer to Figure 1-5 This utility model discloses a mold that does not damage the product during demolding in a preferred embodiment, including a lower mold and an upper mold; the lower mold includes a base frame 1, a lower module 2, a lower mold core 3, and a side mold core 4; the lower module 2 is disposed on the top of the base frame 1; the lower mold core 3 is disposed on the top of the lower module 2; a side mold core 4 is disposed on the outer side of each of the four sides of the lower mold core 3; the side mold core 4 is slidably disposed on the top of the lower module 2; the side mold core 4 is provided with guide holes that slope outward from top to bottom; an injection port 5 is provided on the inner side of the side mold core 4; the upper mold includes a top frame 6, a flow distribution module 7, a flow distribution box 8, an upper module 9, an upper mold core 10, and a flow distribution pipe 11; the top frame 6 is provided with an injection port 12; the flow distribution module 7 is disposed at the bottom of the top frame 6; the flow distribution box 8 is disposed at the bottom of the flow distribution module 6. Inside module 7, the flow distribution box 8 is connected to the injection port 12; the upper module 9 is located at the bottom of the flow distribution module 8; the bottom of the upper module 9 is provided with a guide post 13 corresponding to the guide hole; the upper mold core 10 is located at the bottom of the upper module 9; the top of each of the four sides of the upper mold core 10 is provided with the flow distribution pipe 11; the flow distribution pipe 11 is located inside the upper module 9, and the top of the flow distribution pipe 11 is connected to the bottom of the flow distribution box 8; the upper module 9 is pressed against the top of the lower module 2, so that the guide post 13 is slidably inserted into the guide hole, so that the upper mold core 10, the lower mold core 3, and the side mold core 4 are closed to form a mold cavity; the mold cavity is connected to the injection port 5; the injection port 5 is connected to the bottom outlet of the flow distribution pipe 11.

[0022] Specifically, the lower module 2 is provided with a moving groove at its top; the lower mold core 3 is provided with a positioning step at its top side; when the mold is closed, the side mold core 4 is slidably positioned on the positioning step and sealed between the side of the lower mold core 3 and the side of the upper mold core 10; a moving seat 14 is provided on one side of the side mold core 4; the moving seat 14 is slidably disposed on the moving groove, and the guide hole is disposed on the moving seat 14.

[0023] Specifically, the movable groove is provided with a directional track 15; the bottom of the movable seat 14 is provided with a directional groove; the directional groove is slidably sleeved on the outside of the directional track 15.

[0024] Specifically, the movable groove is provided with an anti-slip groove 16.

[0025] Specifically, a pressure-relieving return spring 17 is provided between the movable seat 14 and the lower mold core 3.

[0026] Specifically, at least two of the diversion pipes 11 are provided on the top of each of the four sides of the upper mold core 10.

[0027] Specifically, the top of the side mold core is provided with several flow channels 18, which are interconnected; each flow channel 18 is connected to a flow pipe 11; both ends of each flow channel 18 are provided with injection channels 19; each injection channel 19 is connected to an injection port 5. Increasing the number of injection ports 5 allows for more simultaneous and uniform material injection into more parts of the product, resulting in better molding quality, more sprues for demolding separation, and less impact of demolding force on the product.

[0028] As can be seen from the above description, the demolding process of this utility model is convenient and safe.

[0029] The preferred embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. It should be noted that the protection scope of the present utility model includes, but is not limited to, the above embodiments; the specific structures disclosed in the accompanying drawings are only preferred embodiments of the present utility model. Those skilled in the art can develop other embodiments based on this. Any simple modifications or equivalent substitutions that do not depart from the innovative concept of the present utility model are all covered by the present utility model and fall within the protection scope of the present utility model.

Claims

1. A mold that does not damage the product during demolding, characterized in that, include: The lower mold includes a base frame, a lower module, a lower mold core, and side mold cores. The lower module is located on top of the base frame. The lower mold core is located on top of the lower module. Each of the four sides of the lower mold core has a side mold core on its outer side. The side mold cores are slidably located on top of the lower module. The side mold cores have guide holes that slope outward from top to bottom. The inner surface of the side mold cores has injection ports. The upper mold includes an ejector frame, a flow distribution module, a flow distribution box, an upper module, an upper mold core, and flow distribution pipes. The ejector frame has an injection port. The flow distribution module is located at the bottom of the ejector frame. The flow distribution box is located within the flow distribution module and communicates with the injection port. The upper module is located at the bottom of the flow distribution module. The bottom of the upper module has guide posts corresponding to the guide holes. The upper mold core is located at the bottom of the upper module. Each of the four sides of the upper mold core has a flow distribution pipe at its top. The flow distribution pipes are located within the upper module, and their tops communicate with the bottom of the flow distribution box. The upper module is pressed onto the top of the lower module, allowing the guide post to slide into the guide hole, so that the upper mold core, the lower mold core, and the side mold core close together to form a mold cavity; the mold cavity is connected to the injection port; the injection port is connected to the bottom outlet of the diversion pipe.

2. The mold for demolding without damaging the product according to claim 1, characterized in that: The lower module has a movable groove at its top; the lower mold core has a positioning step at its top side; when the mold is closed, the side mold core is slidably positioned on the positioning step and sealed between the side of the lower mold core and the side of the upper mold core; a movable seat is provided on one side of the side mold core; the movable seat is slidably disposed on the movable groove, and the guide hole is disposed on the movable seat.

3. The mold for demolding without damaging the product according to claim 2, characterized in that: The movable slot is provided with a directional track; the bottom of the movable seat is provided with a directional slot; the directional slot is slidably sleeved on the outside of the directional track.

4. The mold for demolding without damaging the product according to claim 2, characterized in that: The moving groove is provided with anti-slip grooves.

5. A mold that does not damage the product during demolding according to claim 2, characterized in that: A pressure-relieving return spring is provided between the movable seat and the lower mold core.

6. The mold that demolds without damaging the product according to claim 1, characterized in that: At least two of the diversion pipes are provided on the top of each of the four sides of the upper mold core.

7. A mold for demolding without damaging the product according to claim 6, characterized in that: The top of the side mold core is provided with several flow channels; each flow channel is connected to a flow pipe; both ends of each flow channel are provided with injection channels; each injection channel is connected to an injection port.

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