Peeling device

By incorporating an arc-shaped groove and air vents into the mold, the problem of high peeling difficulty for curved surface products is solved, achieving peeling in a uniform air pressure zone and improving peeling efficiency and safety.

CN224940495UActive Publication Date: 2026-11-06HENAN YUZHAN PRECISION TECH CO LTD
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Patent Information

Application Number
CN202522205960.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-17
Publication Date
2026-11-06
Estimated Expiration
2035-10-17

AI Technical Summary

Technical Problem

In existing injection molding processes, products with insufficient rigidity and curved separation surfaces are prone to stress concentration during peeling, leading to breakage, high peeling difficulty, and low efficiency.

Method used

Design a stripping device with an arc-shaped groove and air holes in the male mold protrusion. Combined with a separator and a support, the air holes allow air to pass through, causing the injection molded part to separate from the workpiece from the male mold, forming a uniform air pressure zone and avoiding force concentration.

Benefits of technology

It improves the peeling efficiency between curved surface products and the mold, reduces the risk of product damage, and enhances the uniformity and safety of peeling.

✦ Generated by Eureka AI based on patent content.

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Abstract

This application provides a peeling device to improve peeling efficiency, comprising: a male mold, including a male mold body, a male mold protrusion, and a support body; the male mold protrusion is disposed in the male mold body and has a hollow structure, and the inner sidewall of the male mold protrusion has an arc-shaped groove; the male mold body has multiple air holes, all located within the male mold protrusion and spaced apart circumferentially; the support body is disposed in the male mold body and within the male mold protrusion, for supporting the workpiece; and a separator, disposed in the male mold body and within the male mold protrusion, the separator connecting to the inner wall of the male mold protrusion and forming multiple through grooves between the separator and the inner wall of the male mold protrusion, the multiple through grooves corresponding one-to-one with the multiple air holes. When the workpiece is located in the support body, the workpiece extends into the arc-shaped groove; after the female mold and the male mold are closed, the female mold, the male mold protrusion, and the workpiece enclose an injection space to form an injection molded part that fills the arc-shaped groove and connects the workpiece; air is supplied to the multiple through grooves through the multiple air holes to drive the injection molded part and the workpiece to detach from the male mold.
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Description

Technical Field

[0001] This application relates to the field of injection molding technology, and more specifically to a stripping device. Background Technology

[0002] During injection molding, after the male mold and female mold are closed, molten plastic is injected into the mold cavity through the female mold runner, so that the plastic combines with the workpiece pre-placed in the mold cavity to form the final product. After the mold is opened, the product needs to be peeled off from the male mold. The peeling of existing products is performed after the male mold and female mold are separated. The separation methods mainly include three types: (1) using an adsorption mechanism to pick up the surface of the product and make the product detach from the male mold; (2) using the lifting mechanism built into the male mold to push the product out of the male mold; (3) introducing compressed air into the internal air cavity of the male mold to blow the product out of the mold.

[0003] However, the above-mentioned peeling method is only suitable for products with high rigidity and a flat separation surface. For products with insufficient rigidity and a curved separation surface, the above-mentioned peeling method is prone to stress concentration, which can lead to product damage, making peeling difficult and inefficient. Utility Model Content

[0004] In view of the above, it is necessary to provide a stripping device to improve stripping efficiency.

[0005] This application provides a stripping device, including: A male mold includes a male mold body, a male mold protrusion, and a support body. The male mold protrusion is disposed in the male mold body and has a hollow structure. An arc-shaped groove is formed on the inner side wall of the male mold protrusion. The male mold body has multiple air holes, which are all located in the male mold protrusion and are spaced apart along the circumference of the male mold protrusion. The support body is disposed in the male mold body and located in the male mold protrusion, and is used to support the workpiece. A separator is provided on the male mold body and located inside the male mold protrusion. The separator connects to the inner wall of the male mold protrusion and forms multiple through grooves with the inner wall of the male mold protrusion. The multiple through grooves are provided in a one-to-one correspondence with the multiple air holes. When the workpiece is located on the support body, the workpiece extends to the arc-shaped groove. After the female mold and the male mold are closed, the female mold, the male mold protrusion and the workpiece enclose an injection space to form an injection molded part that fills the arc-shaped groove and connects the workpiece. Air is circulated to the multiple through slots through multiple air holes to drive the injection molded part and the workpiece to detach from the male mold.

[0006] In some embodiments, the separator includes: The dividing body is located on the main body of the mold and has a hollow structure; Multiple connectors are provided on the male mold body and located between the partition body and the male mold protrusion, with each connector's two ends connected to the partition body and the male mold protrusion, respectively.

[0007] In some embodiments, the separating body and the plurality of connecting bodies are an integral structure.

[0008] In some embodiments, the support includes: Multiple support parts are connected to the main body of the mold, and at least one support part is provided in each through groove.

[0009] In some embodiments, the stripping device further includes: Multiple air supply components are provided on the main body of the mold and are configured to correspond one-to-one with the multiple air holes. Each air supply component is connected to the corresponding air hole.

[0010] In some embodiments, the stripping device further includes: Multiple monitoring components are disposed on the main body of the mold and are configured to correspond one-to-one with the multiple air holes, with each monitoring component connected to the corresponding air hole.

[0011] In some embodiments, the stripping device further includes: The warning device is electrically connected to the monitoring device and is used to issue warning information.

[0012] In some embodiments, the separator is a flexible member.

[0013] In some embodiments, the male mold protrusion further has a supporting portion disposed on the side of the arcuate groove away from the support body, and the peeling device further includes: A pressing member includes a pressing member body and a pressing body disposed on the pressing member body. The pressing member body is used to press the workpiece and to make the pressing body abut against the abutting portion, so as to separate a portion of the injection molded part from the male mold protrusion.

[0014] In some embodiments, the stripping device further includes: An adsorption element is connected to the body of the pressure holding element and is located on the same side of the pressure holding element body. The adsorption element is used to adsorb the workpiece connected to the injection molded part.

[0015] In the aforementioned peeling device, the molded injection part and the workpiece form the desired product. The connection surface between the injection part and the male mold protrusion is an arc-shaped surface, that is, the separation surface between the product and the male mold is an arc-shaped surface. Multiple through slots and multiple air holes are set one-to-one, forming multiple air pressure zones on the male mold. This makes the force acting on the product uniform, avoids damage to the product caused by concentrated force, reduces the difficulty of peeling the product from the male mold, and thus improves the peeling efficiency of the product with an arc-shaped separation surface from the male mold. Attached Figure Description

[0016] Figure 1 A schematic diagram of the structure of a product adapted to the embodiments of this application.

[0017] Figure 2 This is a schematic diagram of the stripping device according to an embodiment of this application.

[0018] Figure 3 for Figure 2 The diagram shows the structure of the first main body, the separator, and the support in the stripping device.

[0019] Figure 4 for Figure 3 An enlarged schematic diagram of the first main body, partition, and support at point A.

[0020] Figure 5 for Figure 1 The products shown are Figure 3 The diagram shows a cross-sectional view of the first main body, the partition, and the support.

[0021] Figure 6 for Figure 2 The diagram shows the structure of the second main body, air supply component, monitoring component, and warning component in the stripping device.

[0022] Figure 7 for Figure 2 A schematic diagram of the structure of the pressure holding member in the peeling device shown.

[0023] Figure 8 for Figure 7 The enlarged schematic diagram of the clamping member at point B is shown.

[0024] Explanation of main component symbols: peeling device 100, through groove 100a, male mold 110, male mold body 111, air hole 111a, first body 1111, second body 1112, male mold protrusion 112, arc groove 112a, supporting part 112b, support body 113, supporting part 1131, separator 120, separator body 121, connecting body 122, air supply component 130, monitoring component 140, warning component 150, pressing component 160, pressing component body 161, pressing body 162, adsorption component 170, adsorption body 171, product 200, workpiece 210, injection molded part 220. Detailed Implementation

[0025] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0026] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the term "connection" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a connection that allows communication between the two; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal communication between two elements or the interaction between two elements. In the description of this application, it should be noted that "multiple" means two or more, unless otherwise expressly and specifically limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0027] The embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0028] Please see Figure 1 , Figure 1 This is a schematic diagram of the structure of a product applicable to embodiments of this application. Specifically, product 200 includes a workpiece 210 and an injection-molded part 220 connected to the periphery of the workpiece 210. The workpiece 210 is a flexible screen structure, and the injection-molded part 220 has an arc-shaped cross-section.

[0029] Please see Figure 1 and Figure 2 This application provides a peeling device 100, including a male mold 110 and a separator 120, for peeling a product 200 from the male mold 110. The injection-molded part 220 of the product 200 is formed by injection molding after the male mold 110 and a female mold adapted to the male mold 110 are closed. After injection molding is completed and the female mold detaches from the male mold 110, the peeling device 100 is used to peel the product 200 from the male mold 110.

[0030] Please see Figure 2 , Figure 3 and Figure 4The male mold 110 includes a male mold body 111, a male mold protrusion 112, and a support body 113. The male mold protrusion 111 is disposed within the male mold body 111 and has a hollow structure. An arc-shaped groove 112a is formed on the inner sidewall of the male mold protrusion 112. The male mold body 111 has multiple air holes 111a, which are all located within the male mold protrusion 112 and spaced apart circumferentially along the male mold protrusion 112. The support body 113 is disposed within the male mold body 111 and the male mold protrusion 112, and is used to support the workpiece 210. A separator 120 is disposed within the male mold body 111 and the male mold protrusion 112. The separator 120 connects to the inner wall of the male mold protrusion 112 and forms multiple through grooves 100a between the separator 120 and the inner wall of the male mold protrusion 112. The multiple through grooves 100a are corresponding one-to-one with the multiple air holes 111a. When the workpiece 210 is located on the support body 113, the workpiece 210 extends to the arc groove 112a. After the female mold and the male mold 110 are closed, the female mold, the male mold protrusion 112 and the workpiece 210 enclose the injection space to form an injection part 220 that fills the arc groove 112a and connects the workpiece 210. Air is vented to multiple through grooves 100a through multiple air holes 111a to drive the injection part 220 and the workpiece 210 to detach from the male mold 110.

[0031] In the aforementioned stripping device 100, the connection surface between the injection molded part 220 and the male mold protrusion 112 of the male mold 110 is an arc-shaped surface (see...). Figure 5 That is, the separation surface between product 200 and male mold 110 is an arc-shaped surface, and multiple through grooves 100a and multiple air holes 111a are set one-to-one, forming multiple air pressure zones on male mold 110, so that the force acting on product 200 is uniform, which can avoid damage to product 200 caused by force concentration, reduce the difficulty of separating product 200 from male mold 110, and thus improve the separation efficiency of product 200 and male mold 110 with arc-shaped separation surface.

[0032] Please see Figure 2 In this embodiment, the public mold body 111 includes a first body 1111 and a second body 1112 that can be detachably connected. The first body 1111 and the second body 1112 are stacked, and a plurality of air holes 111a are opened in the first body 1111.

[0033] Please see Figure 3 and Figure 4 In some embodiments, the separator 120 includes a separator body 121 and a plurality of connectors 122. The separator body 121 is disposed on the first body 1111 of the male mold body 111 and has a hollow structure. The plurality of connectors 122 are all disposed on the first body 1111 of the male mold body 111 and located between the separator body 121 and the male mold protrusion 112. The two ends of each connector 122 are respectively connected to the separator body 121 and the male mold protrusion 112.

[0034] Therefore, through the above-mentioned arrangement, the separator 120 forms a hollow structure, which facilitates the lightweight design of the separator 120.

[0035] In some embodiments, the separator 121 and the plurality of connectors 122 are an integral structure.

[0036] Therefore, the integrated structure of the partition body 121 and multiple connectors 122 can simplify the processing technology of the partition 120, thereby reducing the manufacturing cost of the partition 120.

[0037] Please see Figure 3 and Figure 4 In some embodiments, the support body 113 includes a plurality of support portions 1131. The plurality of support portions 1131 are all connected to the mold body 111, and at least one support portion 1131 is provided in each through groove 100a.

[0038] Therefore, through the above configuration, the support body 113 forms multi-point support for the product 200, so that a channel can be formed between the product 200 and the first body 1111 of the mold body 111 to facilitate the passage of gas, thereby increasing the force of the gas entering from the multiple vents 111a on the product 200.

[0039] Please see Figure 3 and Figure 6 In some embodiments, the stripping device 100 further includes a plurality of air supply components 130. The plurality of air supply components 130 are all disposed on the second body 1112 of the male mold body 111 and are respectively disposed in correspondence with a plurality of air holes 111a, with each air supply component 130 connected to the corresponding air hole 111a.

[0040] Therefore, the multiple air supply components 130 are arranged one-to-one with the multiple air holes 111a, which allows the multiple air holes 111a to enter air individually, which is beneficial to improving the uniformity of the gas entering the multiple air holes 111a.

[0041] In some embodiments, the peeling device 100 further includes a plurality of monitoring elements 140. The plurality of monitoring elements 140 are all disposed on the second body 1112 of the mold body 111 and are respectively disposed in correspondence with a plurality of air holes 111a, with each monitoring element 140 connected to the corresponding air hole 111a.

[0042] Therefore, by using multiple monitoring components 140, the air pressure inside multiple air holes 111a can be collected in real time, realizing dynamic monitoring of the separation of product 200 and mold 110, which is beneficial to improving the safety of the separation of product 200 and mold 110.

[0043] In some embodiments, the stripping device 100 further includes a warning element 150. The warning element 150 is electrically connected to the monitoring element 140 and is used to issue a warning message. The warning element 150 can be a buzzer or a tri-color light.

[0044] Therefore, the warning device 150 facilitates the timely detection of gas information monitored by the monitoring device 140 by personnel.

[0045] In some embodiments, the separator 120 is a flexible member. Therefore, the separator 120 with a flexible structure can avoid wear between the separator 120 and the product 200, thereby improving the quality of the product 200 and the mold 110 after separation.

[0046] Please see Figure 4 , Figure 7 and Figure 8 In some embodiments, the male mold protrusion 112 further has a supporting portion 112b, which is located on the side of the arcuate groove 112a away from the support body 113. The peeling device 100 also includes a pressing member 160. The pressing member 160 includes a pressing member body 161 and a pressing body 162 disposed on the pressing member body 161. The pressing member body 161 is used to press the workpiece 210 and to make the pressing body 162 abut against the supporting portion 112b, so that part of the injection molded part 220 is separated from the male mold protrusion 112.

[0047] Therefore, the holding body 162 of the holding member 160 and the abutting portion 112b of the male mold protrusion 112 can form a snap-fit ​​structure, applying force to the holding body 161 of the holding member 160. The holding body 161 drives the abutting portion 112b to push the upper end of the male mold protrusion 112 away from the injection molded part 220, so as to separate part of the injection molded part 220 and the male mold protrusion 112, and realize the partial peeling of the injection molded part 220 and the male mold protrusion 112.

[0048] Please see Figure 7 In some embodiments, the peeling device 100 further includes an adsorption member 170. The adsorption member 170 is connected to the holding member body 161 and is located on the same side of the holding member body 161 as the holding member 162. The adsorption member 170 is used to adsorb the workpiece 210 of the product 200. Specifically, the adsorption member 170 can adsorb the workpiece 210 after the injection molded part 220 has been partially peeled from the male mold protrusion 112.

[0049] Therefore, the adsorption component 170 can ensure the stability of the position of the product 200 relative to the mold 110 during the process of being subjected to wind pressure, so as to avoid the product 200 colliding with the mold 110.

[0050] In this embodiment, the adsorption member 170 includes a plurality of adsorbent bodies 171, which are distributed on the holding member body 161 to achieve multi-point adsorption of the workpiece 210.

[0051] The working process of the peeling device 100 peeling product 200 and mold 110 is roughly as follows: First, the pressing member 160 is moved, so that the pressing body 162 of the pressing member 160 abuts against the supporting part 112b of the male mold protrusion 112, and a downward force is applied to the pressing member body 161 of the pressing member 160, so that the pressing member body 161 drives the pressing body 162 to push the supporting part 112b, so that the male mold protrusion 112 separates from part of the injection molded part 220; Then, the workpiece 210 of the product 200 is adsorbed by the adsorption element 170; Finally, gas is introduced into multiple air holes 111a through multiple air supply components 130 to create multiple air pressures acting on the workpiece 210 in multiple through slots 100a until the product 200 is detached from the male mold protrusion 112. During this process, the magnitude of the air pressure at multiple points can be monitored in real time by multiple monitoring components 140 to ensure the safety of the product 200 in detaching from the male mold protrusion 112.

[0052] It will be apparent to those skilled in the art that this application is not limited to the details of the exemplary embodiments described above, and that this application can be implemented in other specific forms without departing from the spirit or essential characteristics of this application. Therefore, the embodiments should be regarded as exemplary and non-limiting in all respects, and the scope of this application is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be embraced within this application.

[0053] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this application without departing from the spirit and scope of the technical solutions of this application.

Claims

1. A peeling device, characterized in that, include: A male mold includes a male mold body, a male mold protrusion, and a support body. The male mold protrusion is disposed in the male mold body and has a hollow structure. An arc-shaped groove is formed on the inner side wall of the male mold protrusion. The male mold body has multiple air holes, which are all located in the male mold protrusion and are spaced apart along the circumference of the male mold protrusion. The support body is disposed in the male mold body and located in the male mold protrusion, and is used to support the workpiece. A separator is provided on the male mold body and located inside the male mold protrusion. The separator connects to the inner wall of the male mold protrusion and forms multiple through grooves with the inner wall of the male mold protrusion. The multiple through grooves are provided in a one-to-one correspondence with the multiple air holes. When the workpiece is located on the support body, the workpiece extends to the arc-shaped groove. After the female mold and the male mold are closed, the female mold, the male mold protrusion and the workpiece enclose an injection space to form an injection molded part that fills the arc-shaped groove and connects the workpiece. Air is circulated to the multiple through slots through multiple air holes to drive the injection molded part and the workpiece to detach from the male mold.

2. The stripping device as described in claim 1, characterized in that, The separator includes: The dividing body is located on the main body of the mold and has a hollow structure; Multiple connectors are provided on the male mold body and located between the partition body and the male mold protrusion, with each connector's two ends connected to the partition body and the male mold protrusion, respectively.

3. The peeling device as described in claim 2, characterized in that, The separating body and the multiple connecting bodies are an integral structure.

4. The stripping device as described in claim 1, characterized in that, The support includes: Multiple support parts are connected to the main body of the mold, and at least one support part is provided in each through groove.

5. The peeling device as described in claim 1, characterized in that, The stripping device further includes: Multiple air supply components are provided on the main body of the mold and are configured to correspond one-to-one with the multiple air holes. Each air supply component is connected to the corresponding air hole.

6. The stripping device as claimed in claim 1, characterized in that, The stripping device further includes: Multiple monitoring components are disposed on the main body of the mold and are configured to correspond one-to-one with the multiple air holes, with each monitoring component connected to the corresponding air hole.

7. The peeling device as described in claim 6, characterized in that, The stripping device further includes: The warning device is electrically connected to the monitoring device and is used to issue warning information.

8. The stripping device as claimed in claim 1, characterized in that, The separator is a flexible component.

9. The peeling device as described in claim 8, characterized in that, The male mold protrusion also has a supporting portion, which is located on the side of the arc-shaped groove away from the support body. The peeling device further includes: A pressing member includes a pressing member body and a pressing body disposed on the pressing member body. The pressing member body is used to press the workpiece and to make the pressing body abut against the abutting portion, so as to separate a portion of the injection molded part from the male mold protrusion.

10. The peeling device as claimed in claim 9, characterized in that, The stripping device further includes: An adsorption element is connected to the body of the pressure holding element and is located on the same side of the pressure holding element body. The adsorption element is used to adsorb the workpiece connected to the injection molded part.