Pick-up device for injection mold and injection mold

Abstract

The workpiece taking device comprises a first mold core, a second mold core and a stretching part, the first mold core wraps at least part of the second mold core, an injection molding cavity is formed between the first mold core and the second mold core, and the stretching part is connected with the first mold core. The stretching part is movably arranged in the radial direction of the first mold core so as to be switched between an injection molding position and a demolding position, so that the stretching part is suitable for stretching or retracting the first mold core; wherein a first contact surface and a second contact surface are formed on the first mold core and the second mold core respectively, and the first contact surface and the second contact surface are used for being in contact with at least part of the outer circumferential surface and at least part of the inner circumferential surface of an injection molding part in the injection molding cavity respectively. The stretching part moves in the radial direction of the first mold core in the direction deviating from the first mold core so that the first contact face can be separated from at least part of the outer circumferential face of the injection molding piece, or the second contact face can be separated from at least part of the inner circumferential face of the injection molding piece.

Description

Technical Field

[0001] The present application relates to the field of mold demoulding, and in particular to a device for removing a mold from an injection mold and an injection mold. Background Art

[0002] In the related art, for wheel components using soft rubber as the wheel skin material, since the wheel skin material is soft rubber, when the mold is opened, the wheel skin is soft, resulting in the wheel skin being unable to be demolded using normal structural methods, and it is often necessary to manually remove the wheel skin from the mold. During long-term repetitive work, the workers have a heavy labor burden and their hands are easily injured. At the same time, due to the difficulty in removing parts, the efficiency of the entire production process is affected. Therefore, how to improve the convenience of demolding has become a technical problem to be solved in this application. Summary of the invention

[0003] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the present application is to provide a device for removing parts from an injection mold, which can improve the convenience of demoulding and production efficiency.

[0004] According to an embodiment of the present application, a device for removing a piece from an injection mold comprises: a first mold core and a second mold core, wherein the first mold core covers at least a portion of the second mold core and an injection cavity is formed between the first mold core and the second mold core; a stretching portion, wherein the stretching portion is connected to the first mold core, and the stretching portion is movably arranged in the radial direction of the first mold core to switch between an injection position and a demolding position, so as to be suitable for stretching or retracting the first mold core; wherein a first contact surface and a second contact surface are respectively formed on the first mold core and the second mold core, and the first contact surface and the second contact surface are respectively used to contact at least a portion of an outer peripheral surface and at least a portion of an inner peripheral surface of an injection molded part in the injection cavity, and during the switching process from the injection position to the demolding position, the stretching portion moves in the radial direction of the first mold core in a direction away from the first mold core to separate the first contact surface from at least a portion of an outer peripheral surface of the injection molded part, or to separate the second contact surface from at least a portion of an inner peripheral surface of the injection molded part.

[0005] According to a piece removal device for an injection mold according to an embodiment of the present application, a stretching portion is used to separate the first contact surface from the outer circumferential surface of the injection molded part or the second contact surface from the inner circumferential surface of the injection molded part, thereby achieving pre-separation between the mold core and the injection molded part, reducing the contact area and friction between the injection molded part and the first mold core or the second mold core, avoiding manual pulling during demolding, reducing the difficulty of demolding, making the demolding process easier, improving the convenience of demolding, reducing the need for manual demolding, reducing the burden of manual labor, and allowing more energy to be invested in other production links, further improving the overall production efficiency; at the same time, ensuring the continuity and stability of production.

[0006] According to some embodiments of the present application, the removal device for injection molds, the second mold core includes: an insert, the top of the insert is formed with an inner mold, and the outer peripheral surface of the inner mold is formed with a first injection molding surface; an inner sliding block, the inner sliding block can move in the radial direction relative to the insert, the outer peripheral surface of the inner sliding block is formed with a second injection molding surface, and the inner sliding block can selectively slide to the first injection molding surface protruding from the second injection molding surface; a lift piece, the lift piece can move in the thickness direction relative to the insert, and the outer periphery of the lift piece is formed with a third injection molding surface; wherein the first injection molding surface, the second injection molding surface and the third injection molding surface jointly define the second contact surface.

[0007] According to some embodiments of the present application, in the removing device for injection molds, the lift piece is configured in plurality, and when the lift piece moves away from the insert in the thickness direction, the plurality of lift pieces approach each other.

[0008] According to some embodiments of the present application, the removal device for injection molds further includes: a push rod, which is connected to the inclined push piece and is inclined in the thickness direction, so as to be suitable for driving multiple inclined push pieces to approach each other when the inclined push piece moves away from the insert in the thickness direction.

[0009] According to some embodiments of the present application, the device for removing parts from injection molds further includes: a base, a first guide portion, the first guide portion is arranged on the base, a first guide rail extending in the radial direction is formed on the first guide portion, the inner sliding block cooperates with the first guide rail and moves along the first guide rail.

[0010] According to some embodiments of the present application, the removing device for injection molds, the stretching part includes: a second guide part, the second guide part is arranged on the base, and a second guide rail extending in the radial direction is formed on the second guide part; a sliding part, the sliding part is connected to the first mold core, cooperates with the second guide rail, and moves along the second guide rail; the driving part is connected to the sliding part, and is suitable for driving the sliding part to move in the radial direction.

[0011] According to some embodiments of the present application, in the removal device for injection molds, a connecting portion that can be selectively connected to the injection molded part is provided on the sliding portion, so as to selectively separate the first contact surface from at least a portion of the outer circumference of the injection molded part, or to separate the second contact surface from at least a portion of the inner circumference of the injection molded part.

[0012] According to some embodiments of the present application, in the device for removing parts from injection molds, a limiting portion is provided on the sliding portion and the second guide portion, and a mating portion that cooperates with the limiting portion is provided on the other of the sliding portion and the second guide portion to limit the radial displacement of the sliding portion.

[0013] According to some embodiments of the present application, in the removing device for injection molds, the sliding portion and the second guide portion are configured as a plurality of one-to-one corresponding portions, and the sliding portion and the second guide portion are spaced apart in the circumferential direction.

[0014] The following is a brief description of the injection mold according to an embodiment of the present application.

[0015] The injection mold according to the embodiment of the present application includes the picking device of any of the above-mentioned embodiments. Since the injection mold according to the present embodiment is provided with the picking device of any of the above-mentioned embodiments, the injection mold according to the present application has the ability of rapid demolding, shortening the demolding time of a single product, so that the injection mold can carry out the next round of injection molding production faster. In large-scale production, it can significantly improve the overall production efficiency and increase the product output per unit time. At the same time, it avoids scratches, deformation and other damages to the injection molded parts due to the difficulty in precise control of the force during manual demolding, thereby affecting the appearance and performance of the product. The stretching part of the picking device can smoothly separate the mold from the injection molded part, effectively avoiding damage to the product due to improper manual operation, thereby improving the yield rate of the product.

[0016] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0018] Figure 1 It is a schematic diagram of the top view of the structure of the device for taking out the injection mold according to the embodiment of the present application;

[0019] Figure 2 for Figure 1 AA section structure schematic diagram in;

[0020] Figure 3 It is a schematic diagram of the structure of the ejector pin ejecting the inclined ejector and the injection molded part.

[0021] Reference numerals:

[0022] 100. Pick-up device;

[0023] 1. First mold core; 11. First contact surface;

[0024] 2. The second mold;

[0025] 21. second contact surface;

[0026] 22, insert; 221, inner mold; 222, first injection molding surface;

[0027] 23. Inner slider; 231. Second injection molding surface; 232. First guide rail;

[0028] 24. inclined ejector; 241. third injection molding surface;

[0029] 3. Injection cavity; 31. Injection molded parts;

[0030] 4. stretching part; 41. second guide rail; 42. sliding part; 421. connecting part;

[0031] 5. Ejector rod;

[0032] 6. Base. DETAILED DESCRIPTION

[0033] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0034] Reference below Figure 1-Figure 3 A device 100 for removing a component from an injection mold according to an embodiment of the present application is described.

[0035] According to an embodiment of the present application, a device 100 for removing a piece from an injection mold comprises: a first mold core 1, a second mold core 2 and a stretching portion 4, wherein the first mold core 1 covers at least a portion of the second mold core 2 and an injection cavity 3 is formed between the first mold core 1 and the second mold core 2, the stretching portion 4 is connected to the first mold core 1, and the stretching portion 4 is movably arranged in the radial direction of the first mold core 1 to switch between an injection position and a demolding position, so as to be suitable for stretching or retracting the first mold core 1; wherein a first contact surface 11 and a second contact surface 21 are respectively formed on the first mold core 1 and the second mold core 2, and the first contact surface 11 and the second contact surface 21 are respectively used to contact at least a portion of the outer circumference and at least a portion of the inner circumference of an injection molded part 31 in the injection cavity 3, and during the switching process from the injection position to the demolding position, the stretching portion 4 moves in the radial direction of the first mold core 1 in a direction away from the first mold core 1 to separate the first contact surface 11 from at least a portion of the outer circumference of the injection molded part 31, or to separate the second contact surface 21 from at least a portion of the inner circumference of the injection molded part 31.

[0036] It should be noted that after the injection molding process is completed, the molded injection molded part 31 needs to be taken out from the mold. At this time, the removal device 100 switches from the injection position to the demolding position. During this switching process, the stretching part 4 moves in the radial direction of the first mold core 1 in a direction away from the first mold core 1.

[0037] When the first contact surface 11 is separated from at least part of the outer peripheral surface of the injection molded part 31, the stretching portion 4 moves away from the first mold core 1, which will drive the first mold core 1 to produce corresponding deformation or displacement. Since the first contact surface 11 on the first mold core 1 is in contact with at least part of the outer peripheral surface of the injection molded part 31, the deformation or displacement of the first mold core 1 will break the fitting state between the first contact surface 11 and the outer peripheral surface of the injection molded part 31, thereby realizing the separation of the first contact surface 11 from at least part of the outer peripheral surface of the injection molded part 31; when the second contact surface 21 is When at least part of the inner circumference of the injection molded part 31 is separated, the first mold core 1 may be provided with a connecting portion 421 connected to the injection molded part 31, or after the injection molded part 31 is completed in the injection cavity 3, the adhesion strength between the first contact surface 11 and the injection molded part 31 is greater than the adhesion strength between the second contact surface 21 and the injection molded part 31, so that when the stretching portion 4 drives the first mold core 1 to deform or displace, the injection molded part 31 is deformed or displaced synchronously with the first mold core 1, and the second contact surface 21 is separated from at least part of the inner circumference of the injection molded part 31.

[0038] The first contact surface 11 is separated from the outer circumference of the injection molded part 31 or the second contact surface 21 is separated from the inner circumference of the injection molded part 31 by the stretching portion 4, thereby realizing pre-separation between the mold core and the injection molded part 31. The pre-separation breaks the close fitting state between the first contact surface 11 and the injection molded part 31 or the second contact surface 21 and the injection molded part 31 in advance, greatly reducing the resistance during subsequent demolding, making the demolding process easier, and greatly improving the convenience of operation, thereby avoiding the problem that in the manual demolding method, the injection molded part 31 is closely fitted to the mold, and a large external force is required during demolding, which is easy to cause scratches on the surface of the injection molded part 31. Scratches and other problems affect the quality of product appearance. The pre-separation of the pickup device 100 partially separates the injection molded part 31 from the mold in the initial stage, and the external force required for subsequent demolding is greatly reduced, which effectively avoids surface damage caused by strong pulling and ensures the integrity and smoothness of the product appearance. At the same time, the pre-separation process effectively reduces the difficulty of subsequent demolding, making the demolding operation smoother and faster, and the demolding time of each product is greatly shortened. In large-scale production, the time savings of a single product are accumulated to be considerable, which can significantly improve the production efficiency of the injection mold and increase the product output per unit time.

[0039] According to some embodiments of the present application, the removal device 100 for injection molds, the second mold core 2 includes an insert 22, an inner slide 23 and a lift piece 24, the top of the insert 22 is formed with an inner mold 221, the outer peripheral surface of the inner mold 221 is formed with a first injection molding surface 222, the inner slide 23 can move in the radial direction relative to the insert 22, the outer peripheral surface of the inner slide 23 is formed with a second injection molding surface 231, the inner slide 23 can selectively slide to the first injection molding surface 222 protruding from the second injection molding surface 231, the lift piece 24 can move in the thickness direction relative to the insert 22, and the outer periphery of the lift piece 24 is formed with a third injection molding surface 241; wherein the first injection molding surface 222, the second injection molding surface 231 and the third injection molding surface 241 jointly define the second contact surface 21.

[0040] Since the second mold core 2 includes an insert 22, an inner slider 23 and an inclined ejector 24, and the outer circumferential surfaces of the insert 22, the inner slider 23 and the inclined ejector 24 are formed with a first injection molding surface 222, a second injection molding surface 231 and a third injection molding surface 241, the first injection molding surface 222, the second injection molding surface 231 and the third injection molding surface 241 jointly define the second contact surface 21, a separate component demolding method can be adopted during the demolding process, and the separate component structure can reduce the resistance and friction during demolding. During demolding, the inner slider 23 can be first moved radially so that the second injection molding surface 231 is separated from the inner circumferential surface of the injection molded part 31. The contact area between the injection molded part 31 and the second mold core 2 is reduced, thereby reducing the difficulty of demoulding, and then the inclined ejector 24 is moved to make the inclined ejector 24 eject the injection molded part 31 from the insert 22, so that the first injection molding surface 222 is separated from the injection molded part 31, and finally the injection molded part 31 is removed from the ejected inclined ejector 24, so that the third injection molding surface 241 is separated from the product, and the entire demoulding process is completed; this step-by-step demoulding method makes the demoulding process smoother, avoids the problem of product damage or deformation caused by large friction and adsorption force during overall demoulding, and improves the success rate and efficiency of demoulding.

[0041] It should be noted that, in some embodiments of the present application, multiple inserts 22 are arranged at intervals along the inner circumference of the injection molded part 31, multiple inner sliders 23 are symmetrically arranged at intervals between the inserts 22, and multiple inclined ejectors 24 are symmetrically arranged at intervals between the inserts 22. At the same time, since the inner slider 23 can move in the radial direction relative to the insert 22, and the inclined ejector 24 can move in the thickness direction relative to the insert 22, the insert 22 is relatively stationary. The insert 22 serves as a relatively stable reference component, which provides a position reference for the distribution of the inner slider 23 and the inclined ejector 24. During the injection molding process, the inner slider 23 and the inclined ejector 24 need to be moved to the exact position to form a complete injection cavity 3 to ensure the molding quality of the injection molded part 31. The relative static state of the insert 22 can provide a stable positioning reference for the movement of the inner slider 23 and the inclined ejector 24, ensuring that the inner slider 23 and the inclined ejector 24 can reach the predetermined positions based on the position of the insert 22 during the injection molding process and the demolding process, thereby ensuring the injection molding process and the demolding process. Accuracy and stability; the inner slider 23 and the inclined top piece 24 need to move relative to the insert 22 during the demolding process. During the movement, the isolation of the insert 22 can prevent the injection molded part 31 from sticking to the surfaces of the inner slider 23 and the inclined top piece 24. This is because the injection molded part 31 made of soft rubber material may produce a certain adhesion force with the surface of the second mold core 2 during the cooling process, and the movement of the inner slider 23 and the inclined top piece 24 will produce stress concentration on the injection molded part 31 and the second injection molding surface 231 and the third injection molding surface 241. At the beginning of the movement, the stress concentration will cause the injection molded part 31 to be locally subjected to a large tensile force or shear force directed to the second contact surface 21, which will cause the adhesion between the injection molded part 31 and the inner slider 31 and the inclined top piece 24 surface to be more firm, thereby aggravating the adhesion. The insert 22 is relatively stationary between the injection molded part 31 and the inner slider 23 and the inclined top piece 24, thereby reducing the area of ​​direct contact between the injection molded part 31 and the inner slider 23 and the inclined top piece 24, thereby reducing the probability of adhesion.

[0042] According to some embodiments of the present application of the retrieval device 100 for an injection mold, the lift piece 24 is constructed in plurality, and when the lift piece 24 moves away from the insert 22 in the thickness direction, the plurality of lift pieces 24 approach each other.

[0043] Furthermore, since the third injection surface 241 formed on the inclined top piece 24 is a part of the second contact surface 21, the second contact surface 21 is connected to the inner circumferential surface of the injection molded part 31. When the multiple inclined top pieces 24 are away from the insert 22 in the thickness direction, the multiple inclined top pieces 24 are close to each other, so that the third contact surface is separated from the inner circumferential surface of the injection molded part 31, which facilitates the subsequent removal of the injection molded part 31 from the inclined top piece 24, reduces manual labor intensity, and improves production efficiency.

[0044] According to some embodiments of the present application, the removal device 100 for injection molds further includes a push rod 5, which is connected to the inclined push piece 24 and is inclined in the thickness direction, so as to drive multiple inclined push pieces 24 to approach each other when the inclined push piece 24 moves away from the insert 22 in the thickness direction.

[0045] The ejector pin 5 is tilted in the thickness direction and connected to the inclined ejector piece 24. When force is applied in the direction of movement of the ejector pin 5, the force will be decomposed into component forces along the thickness direction and the horizontal direction due to the tilt angle of the ejector pin 5. When the inclined ejector piece 24 needs to move away from the insert 22 in the thickness direction, the tilt structure of the ejector pin 5 enables the ejector pin 5 to effectively transmit power to the inclined ejector piece 24, and at the same time drive multiple inclined ejector pieces 24 to approach each other, so that multiple inclined ejector pieces 24 can work together to concentrate force to overcome the adsorption force and friction force between the injection molded part 31 and the mold. Driven by the ejector pin 5, multiple inclined ejector pieces 24 approach each other and exert force together, which can more effectively remove the injection molded part 31 from the mold and achieve smooth demolding.

[0046] According to some embodiments of the present application, the removal device 100 for injection molds also includes a base 6 and a first guide portion, the first guide portion is arranged on the base 6, and a first guide rail 232 extending in the radial direction is formed on the first guide portion. The inner sliding block 23 cooperates with the first guide rail 232 and moves along the first guide rail 232.

[0047] The first guide portion is arranged on the base 6, which provides a stable foundation for the entire guide structure. The stability of the base 6 prevents the first guide portion from being displaced or shaken during operation, thereby ensuring the position accuracy of the first guide rail 232. The inner slider 23 cooperates with the first guide rail 232, and the first guide rail 232 extends in the radial direction, which limits the movement direction of the inner slider 23 so that the inner slider 23 can only move along the radial direction. This guiding mechanism avoids the inner slider 23 from being offset, stuck or shaken during movement, and the precise guiding can ensure that the inner slider 23 can be accurately positioned every time, thereby ensuring the consistency and high precision of the injection molded products.

[0048] According to some embodiments of the present application, the removal device 100 for injection molds, the stretching part 4 includes a second guide part, a sliding part 42 and a driving part. The second guide part is arranged on the base 6. The second guide part is formed with a second guide rail 41 extending in the radial direction. The sliding part 42 is connected to the first mold core 1, cooperates with the second guide rail 41, and moves along the second guide rail 41. The driving part is connected to the sliding part 42, and is suitable for driving the sliding part 42 to move in the radial direction.

[0049] The second guide portion is arranged on the base 6, and the second guide rail 41 formed on the second guide portion extends radially, providing precise guidance for the movement of the sliding portion 42. The sliding portion 42 is connected to the first mold core 1 and cooperates with the second guide rail 41, so that the sliding portion 42 can only move radially along the second guide rail 41.

[0050] During the demolding process, precise guiding can ensure that the first mold core 1 is stretched or retracted in a predetermined direction and path. When the first mold core 1 needs to be separated from the outer peripheral surface of the injection molded part 31, the sliding part 42 moves radially along the second guide rail 41, driving the first mold core 1 to move smoothly away from the injection molded part 31, thereby avoiding demolding difficulties or damage to the injection molded part 31 due to deviation in the direction of movement.

[0051] The driving part is connected to the sliding part 42, and can provide stable and controllable power for the movement of the sliding part 42 in the radial direction. The driving part can control the moving speed, distance and force of the sliding part 42 according to the actual demoulding requirements. For injection molded parts 31 of different sizes, shapes and materials, the driving part can adjust the parameters to separate the first mold core 1 from the injection molded parts 31 in a suitable manner. For example, for some injection molded parts 31 with high viscosity, the driving part can provide a large driving force to slowly and steadily stretch the first mold core 1 to ensure a smooth demoulding process.

[0052] According to some embodiments of the present application, a removal device 100 for an injection mold is provided on the sliding portion 42 with a connecting portion 421 that can be selectively connected to the injection molded part 31, so as to selectively separate the first contact surface 11 from at least a portion of the outer peripheral surface of the injection molded part 31, or to separate the second contact surface 21 from at least a portion of the inner peripheral surface of the injection molded part 31.

[0053] The connection portion 421 can be selectively connected to the injection molded part 31, so that during the demolding process, the first contact surface 11 can be flexibly selected to be separated from at least part of the outer peripheral surface of the injection molded part 31, or the second contact surface 21 can be flexibly selected to be separated from at least part of the inner peripheral surface of the injection molded part 31 according to the specific structure, shape and fit of the injection molded part 31 with the mold. For some injection molded parts 31 with complex structures on the outer peripheral surface but relatively simple inner peripheral surface, the first contact surface 11 can be preferentially separated from the outer peripheral surface through the connection portion 421; and for injection molded parts 31 with special structures such as undercuts and protrusions on the inner peripheral surface, the second contact surface 21 can be selected to be separated from the inner peripheral surface first. This flexibility greatly improves the pertinence and effectiveness of the demolding process, and avoids the demolding difficulties that may be caused by adopting a single demolding method.

[0054] According to some embodiments of the present application, a device 100 for removing a piece from an injection mold is provided with a limiting portion on the sliding portion 42 and the second guide portion, and a mating portion that cooperates with the limiting portion is provided on the other of the sliding portion 42 and the second guide portion to limit the radial displacement of the sliding portion 42.

[0055] A mechanical blocking relationship is formed between the limiting portion and the matching portion. When the sliding portion 42 moves radially to a predetermined position along the second guide rail 41 under the action of the driving portion, the limiting portion and the matching portion cooperate with each other to form a physical blockage. The limiting portion can be a protrusion structure, and the matching portion is a corresponding groove structure. When the sliding portion 42 reaches a specific position, the protrusion is embedded in the groove. At this time, if the sliding portion 42 has a tendency to retract, the protrusion will be blocked by the wall of the groove and cannot move in the opposite direction, thereby effectively preventing the sliding portion 42 from retracting, avoiding the retraction of the sliding portion 42 and destroying the established demolding state, avoiding the retraction of the sliding portion 42, so that the first mold core 1 will contact the injection molded part 31 again, increasing the difficulty of demolding, and may even cause the problem of demolding failure. The sliding portion 42 is prevented from retracting by the limiting portion and the matching portion, so that the first mold core 1 can continue to maintain a state of separation from the injection molded part 31, ensuring that the demolding process can be successfully completed according to the predetermined steps, and improving the success rate of demolding.

[0056] According to some embodiments of the present application, the retrieval device 100 for an injection mold is configured as a plurality of sliding portions 42 and the second guide portions corresponding to each other, and the sliding portions 42 and the second guide portions are spaced apart in the circumferential direction.

[0057] A plurality of one-to-one corresponding sliding parts 42 and second guide parts are arranged at intervals along the circumferential direction, so that during the demolding process, the first mold core 1 can be subjected to uniform pulling force in the circumferential direction. When the driving part drives the sliding part 42 to move, each sliding part 42 will simultaneously apply force to the first mold core 1, and evenly disperse the demolding resistance to various parts of the first mold core 1. For circular or nearly circular injection molded parts 31, the traditional single-point or a few-point force application method is prone to cause local stress concentration, causing the injection molded part 31 to deform during the demolding process. The plurality of sliding parts 42 are arranged at intervals along the circumferential direction, which can make the first mold core 1 and the outer peripheral surface of the injection molded part 31 evenly separated, avoiding demolding difficulties or product damage caused by excessive local force, and improving the success rate of demolding.

[0058] The following is a brief description of the injection mold according to an embodiment of the present application.

[0059] The injection mold according to the embodiment of the present application includes the picking device 100 of any of the above-mentioned embodiments. Since the injection mold according to the present embodiment is provided with the picking device 100 of any of the above-mentioned embodiments, the injection mold according to the present application has the ability of rapid demolding, shortening the demolding time of a single product, so that the injection mold can carry out the next round of injection molding production faster. In large-scale production, it can significantly improve the overall production efficiency and increase the product output per unit time. At the same time, it avoids scratches, deformation and other damages to the injection molded part 31 due to the difficulty in accurately controlling the force during manual demolding, thereby affecting the appearance and performance of the product. The stretching portion 4 of the picking device 100 can smoothly separate the mold from the injection molded part 31, effectively avoiding damage to the product due to improper manual operation, thereby improving the product yield.

[0060] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0061] In the description of this application, "first feature" or "second feature" may include one or more of the features.

[0062] In the description of the present application, “plurality” means two or more.

[0063] In the description of the present application, a first feature being “on” or “under” a second feature may include that the first and second features are directly in contact with each other, or may include that the first and second features are not in direct contact with each other but are in contact with each other via another feature therebetween.

[0064] In the description of the present application, “above”, “over” and “above” a first feature to a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.

[0065] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0066] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A device for removing a mold from an injection mold, characterized in that: include: A first mold core (1) and a second mold core (2), wherein the first mold core (1) covers at least a portion of the second mold core (2) and an injection cavity (3) is formed between the first mold core (1) and the second mold core (2); a stretching portion (4), the stretching portion (4) being connected to the first mold core (1), the stretching portion (4) being movably arranged in the radial direction of the first mold core (1) to switch between an injection position and a demoulding position, so as to be suitable for stretching or retracting the first mold core (1); wherein A first contact surface (11) and a second contact surface (21) are respectively formed on the first mold core (1) and the second mold core (2); the first contact surface (11) and the second contact surface (21) are respectively used to contact at least a portion of the outer peripheral surface and at least a portion of the inner peripheral surface of the injection molded part (31) in the injection cavity (3); during the switching process from the injection position to the demoulding position, the stretching portion (4) moves in a radial direction of the first mold core (1) in a direction away from the first mold core (1) to separate the first contact surface (11) from at least a portion of the outer peripheral surface of the injection molded part (31), or to separate the second contact surface (21) from at least a portion of the inner peripheral surface of the injection molded part (31).

2. The device for removing a component from an injection mold according to claim 1, characterized in that: The second mold core (2) comprises: An insert (22), wherein an inner mold (221) is formed on the top of the insert (22), and a first injection molding surface (222) is formed on the outer peripheral surface of the inner mold (221); An inner slider (23), the inner slider (23) being movable in a radial direction relative to the insert (22), the outer peripheral surface of the inner slider (23) being formed with a second injection molding surface (231), and the inner slider (23) being selectively slidable until the first injection molding surface (222) protrudes from the second injection molding surface (231); A tilted ejector (24), wherein the tilted ejector (24) can move relative to the insert (22) in the thickness direction, and a third injection molding surface (241) is formed on the outer periphery of the tilted ejector (24); wherein The first injection molding surface (222), the second injection molding surface (231) and the third injection molding surface (241) jointly define the second contact surface (21).

3. The device for removing a component from an injection mold according to claim 2, characterized in that: The inclined ejector (24) is constructed in plurality, and when the inclined ejector (24) moves away from the insert (22) in the thickness direction, the plurality of inclined ejector members (24) are close to each other.

4. The device for removing a component from an injection mold according to claim 3, characterized in that: Also includes: A push rod (5), wherein the push rod (5) is connected to the inclined push piece (24) and the push rod (5) is inclined in the thickness direction so as to be suitable for driving a plurality of the inclined push pieces (24) to move closer to each other when the inclined push piece (24) moves away from the insert (22) in the thickness direction.

5. The device for removing a component from an injection mold according to claim 2, characterized in that: Also includes: Base (6), A first guide portion, wherein the first guide portion is arranged on the base (6), and a first guide rail (232) extending in the radial direction is formed on the first guide portion, and the inner sliding block (23) cooperates with the first guide rail (232) and moves along the first guide rail (232).

6. The device for removing a component from an injection mold according to claim 5, characterized in that: The stretching portion (4) comprises: A second guide portion, the second guide portion being arranged on the base (6), and having a second guide rail (41) extending in the radial direction formed on the second guide portion; a sliding portion (42), the sliding portion (42) being connected to the first mold core (1), cooperating with the second guide rail (41), and moving along the second guide rail (41); A driving part is connected to the sliding part (42) and is suitable for driving the sliding part (42) to move in the radial direction.

7. The device for removing a component from an injection mold according to claim 6, characterized in that: The sliding portion (42) is provided with a connecting portion (421) that can be selectively connected to the injection molded part (31) so as to selectively separate the first contact surface (11) from at least a portion of the outer peripheral surface of the injection molded part (31), or to separate the second contact surface (21) from at least a portion of the inner peripheral surface of the injection molded part (31).

8. The device for removing a component from an injection mold according to claim 7, characterized in that: The sliding part (42) and the second guide part are provided with a limiting part, and the other of the sliding part (42) and the second guide part is provided with a matching part that matches with the limiting part to limit the radial displacement of the sliding part (42).

9. The device for removing a component from an injection mold according to claim 6, characterized in that: The sliding portion (42) and the second guide portion are configured as a plurality of one-to-one corresponding portions, and the sliding portion (42) and the second guide portion are arranged at intervals in the circumferential direction.

10. An injection mold, characterized in that: The device comprises the picking device (100) as described in any one of claims 1 to 9.

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