A demolding structure and a mold

Abstract

This application provides a demolding structure and a mold. The demolding structure includes a rotating component, a push rod component, and a core-pulling rod assembly. The rotating component is rotatably connected to the moving mold of the main mold at its center along its extension direction. The first end of the push rod component and the first end of the core-pulling rod assembly are respectively connected to the two ends of the rotating component along its extension direction. The second end of the push rod component is used to connect to the stationary mold of the main mold, and the second end of the core-pulling rod assembly is connected to the local mold. When the demolding structure is in the demolding state, the push rod component moves in a first direction under the drive of the stationary mold, and the push rod component drives the rotating component to rotate, so that the core-pulling rod assembly moves along a second direction and demolds the local mold. This demolding structure solves the problem of inconsistent demolding directions between the main mold and the local mold, improves demolding efficiency, and improves the processing quality of the mold.

Description

Technical Field

[0001] This application relates to the technical field of automobile manufacturing, and more particularly to a demolding structure and mold. Background Technology

[0002] In the automobile manufacturing process, various parts require different molds for production and processing. For example, when molding interior accessories for automobiles, injection molds are used for injection molding.

[0003] Existing injection molds employ different ejection and demolding methods depending on the product's structure, such as straight ejector pins, angled ejector pins, or a combination of both. In existing technology, when a product contains an undercut structure, a rear mold hydraulic cylinder core-pulling mechanism can be used to eject the product and complete the demolding process.

[0004] However, when the demolding direction of the existing injection mold structure is inconsistent with the main demolding direction of the product, there is a problem of poor demolding effect. Summary of the Invention

[0005] This application provides a demolding structure and a mold. The demolding structure can solve the problem of inconsistent demolding direction between the local mold and the main mold of the workpiece, thereby improving demolding efficiency and improving the processing quality of the mold.

[0006] In a first aspect, this application provides a demolding structure for a mold used for injection molding a workpiece, the workpiece including a first part and a second part, the mold including a main mold for molding the first part and a partial mold for molding the second part, the main mold including a stationary mold and a moving mold.

[0007] The demolding structure includes a rotating component, a push rod component, and a core-pulling rod assembly. The rotating component itself is rotatably connected to the moving mold of the main mold at its center in its extension direction. The first end of the push rod component and the first end of the core-pulling rod assembly are respectively connected to the two ends of the rotating component itself in its extension direction.

[0008] The second end of the push rod is used to connect to the stationary mold of the main mold, and the second end of the core-pulling rod assembly is connected to the local mold.

[0009] When the demolding structure is in the demolding state, the push rod is used to move in the first direction under the drive of the stationary mold. The push rod drives the rotating part to rotate, so that the core-pulling rod assembly moves in the second direction and drives the partial mold to demold. The first direction and the second direction are different.

[0010] In the above-mentioned demolding structure, optionally, the core-pulling rod assembly includes a core-pulling rod support and a core-pulling rod. The first end of the core-pulling rod support is rotatably connected to the rotating part, the second end of the core-pulling rod support is rotatably connected to the first end of the core-pulling rod, and the second end of the core-pulling rod is connected to a partial mold.

[0011] The relative rotation direction of the core-pulling rod support and the rotating part is different from the relative rotation direction of the core-pulling rod support and the core-pulling rod.

[0012] In the above demolding structure, optionally, the rotation surface of the core-pulling rod support and the rotating part is perpendicular to the rotation surface of the core-pulling rod support and the core-pulling rod.

[0013] The extension direction of the rotating component is parallel to the rotational surface of the core-pulling rod support and the rotating component's relative rotation.

[0014] In the above-mentioned demolding structure, optionally, one of the rotating part and the first end of the core-pulling rod support is provided with a first connecting hole, and the other is provided with a first connecting rod. The first connecting rod passes through the first connecting hole, and the extension direction of the first connecting rod is perpendicular to the rotation surface of the core-pulling rod support and the rotating part.

[0015] In the above-mentioned demolding structure, optionally, one of the second ends of the core-pulling rod and the core-pulling rod support is provided with a second connecting hole, and the other is provided with a second connecting rod. The second connecting rod passes through the second connecting hole, and the extension direction of the second connecting rod is perpendicular to the rotation surface of the core-pulling rod support and the core-pulling rod relative to each other.

[0016] In the above demolding structure, optionally, the rotating part is provided with a connection port, and the first end of the push rod is provided with a connecting plate, at least part of the connecting plate being rotatably connected to the connection port.

[0017] Optionally, the above demolding structure may also include a first limiting ring, which is fixed to the stationary mold, and the push rod passes through the first limiting ring.

[0018] Optionally, the above demolding structure may also include a second limiting ring, which is fixed to the stationary mold, and the core-pulling rod passes through the second limiting ring.

[0019] Optionally, the above demolding structure may also include an elastic element, the two ends of which are connected to the rotating part and the moving mold, respectively, and the push rod and core-pulling rod assembly are located on opposite sides of the rotating part along the extension direction.

[0020] The rotating component extends to have a first rotating end and a second rotating end. The first rotating end is connected to the push rod component, and the second rotating end is connected to the core-pulling rod support component. The elastic component is connected to either the first rotating end or the second rotating end.

[0021] Secondly, this application provides a mold for injection molding a workpiece. The mold includes a main mold, a partial mold, and a demolding structure. The main mold is used to mold a first part of the workpiece, and the partial mold is used to mold a second part of the workpiece. The main mold includes a stationary mold and a moving mold.

[0022] One part of the demolding structure is connected to the local mold, and the other part is connected to the main mold.

[0023] This application provides a demolding structure and a mold. The demolding structure includes a rotating component, a push rod component, and a core-pulling rod assembly. The middle portion of the rotating component's extension direction is rotatably connected to the moving mold of the main mold. The first ends of the push rod component and the core-pulling rod assembly are respectively connected to the two ends of the rotating component's extension direction. The second end of the push rod component is used to connect to the stationary mold of the main mold, and the second end of the core-pulling rod assembly is connected to the local mold. When the demolding structure is in the demolding state, the push rod component moves in a first direction under the drive of the stationary mold, and the push rod component drives the rotating component to rotate, so that the core-pulling rod assembly moves in a second direction, thereby demolding the local mold. This demolding structure solves the problem of inconsistent demolding directions between the main mold and the local mold, improves demolding efficiency, and improves the processing quality of the mold.

[0024] The structure of this application, as well as its other practical purposes and beneficial effects, will become more apparent and understandable through the description of the preferred embodiments in conjunction with the accompanying drawings. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the mold provided in the embodiments of this application;

[0027] Figure 2 This is a schematic diagram of the demolding structure provided in the embodiments of this application in the demolding state;

[0028] Figure 3 This is a schematic diagram of the demolding structure provided in the embodiment of this application in the mold-closed state;

[0029] Figure 4 This is a schematic diagram of the ejector pin of the demolding structure provided in the embodiments of this application;

[0030] Figure 5 The ejector pin of the demolding structure provided in the embodiments of this application is along Figure 4 A cross-sectional view of surface AA;

[0031] Figure 6 This is a schematic diagram of the rotating component of the demolding structure provided in the embodiments of this application;

[0032] Figure 7 This is a schematic diagram of the core-pulling rod support component of the demolding structure provided in the embodiments of this application;

[0033] Figure 8 This is a schematic diagram of the core-pulling member of the demolding structure provided in the embodiments of this application.

[0034] Explanation of reference numerals in the attached figures:

[0035] 100: Rotating component; 200: Push rod component; 300: Core-pulling rod assembly; 400: First limiting ring; 500: Second limiting ring; 600: Elastic component; 700: Moving mold; 800: Stationary mold; 900: Workpiece;

[0036] 101: First rotating end; 102: Second rotating end; 103: Fixing pin;

[0037] 201: Push rod body; 202: Connecting plate;

[0038] 301: Core-pulling rod support component; 302: Core-pulling rod component;

[0039] 311: First connecting rod; 312: First connecting hole; 313: Second connecting rod; 314: Second connecting hole;

[0040] 901: Part 1; 902: Part 2.

[0041] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0042] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0043] The inventors of this application discovered during their research that various parts require different molds for production and processing in the automobile manufacturing process. For example, when molding interior accessories for automobiles, injection molds are used for injection molding. An injection mold consists of two parts: a moving mold and a stationary mold. The stationary mold is mounted on a fixed template of the injection molding machine, and the moving mold is mounted on a moving template of the injection molding machine. Injection-molded products undergo multiple processes, including mold closing, injection, pressure holding, cooling, mold opening, and removal.

[0044] When a workpiece has an undercut structure, an additional inclined ejector structure needs to be designed in the mold to allow the workpiece to eject from the main mold. However, when a workpiece has an undercut structure, and the direction in which some parts of the workpiece need to be demolded is inconsistent with the main demolding direction, the product cannot be directly ejected from the main mold. The existing technology uses a rear mold hydraulic cylinder core-pulling structure, but this rear mold hydraulic cylinder core-pulling structure is not only costly, but also affects the strength of the mold structure.

[0045] In view of this, embodiments of this application provide a demolding structure and a mold. The demolding structure includes a rotating component, a push rod component, and a core-pulling rod assembly. The middle part of the rotating component's extension direction is rotatably connected to the moving mold of the main mold. The first end of the push rod component and the first end of the core-pulling rod assembly are respectively connected to the two ends of the rotating component's extension direction. The second end of the push rod component is used to connect to the stationary mold of the main mold, and the second end of the core-pulling rod assembly is connected to the local mold. When the demolding structure is in the demolding state, the push rod component is used to move in the first direction under the drive of the stationary mold. The push rod component drives the rotating component to rotate, so that the core-pulling rod assembly moves along the second direction and drives the local mold to demold. This demolding structure solves the problem of inconsistent demolding directions between the main mold and the local mold, improves demolding efficiency, and improves the processing quality of the mold.

[0046] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be described in more detail below with reference to the accompanying drawings. In the drawings, the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of this application. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application. The embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0047] Firstly, referring to Figure 1As shown, this application provides a demolding structure for a mold, the mold being used for injection molding of a workpiece, the workpiece 900 including a first part 901 and a second part 902, the mold including a main mold for molding the first part 901 and a partial mold for molding the second part 902, the main mold including a stationary mold 800 and a moving mold 700.

[0048] The demolding structure includes a rotating component 100, a push rod component 200, and a core-pulling rod assembly 300. The rotating component 100 is rotatably connected to the moving mold 700 of the main mold at its middle part in its extension direction. The first end of the push rod component 200 and the first end of the core-pulling rod assembly 300 are respectively connected to the two ends of the rotating component 100 in its extension direction.

[0049] The second end of the push rod 200 is used to connect to the stationary mold 800 of the main mold, and the second end of the core-pulling rod assembly 300 is connected to the local mold.

[0050] When the demolding structure is in the demolding state, the push rod 200 is used to move in the first direction under the drive of the stationary mold 800. The push rod 200 drives the rotating part 100 to rotate, so that the core-pulling rod assembly 300 moves in the second direction and drives the partial mold to demold. The first direction and the second direction are different.

[0051] For example, after the mold undergoes the processes of mold closing, injection, pressure holding, and cooling, the mold needs to be disassembled to remove the product from the mold cavity. When the demolding directions of the first part 901 and the second part 902 of workpiece 900 are inconsistent, the demolding direction of the first part 901 of workpiece 900 is the first direction, and the demolding direction of the second part 902 of workpiece 900 is the second direction. By setting a demolding structure, the second part 902 of workpiece 900 can be demolded from the local mold in the second direction to obtain a workpiece with the desired structural characteristics.

[0052] For example, refer to Figure 1 and Figure 2 As shown, when the mold includes a demolding structure, the demolding process of the product is as follows: First, the moving mold 700 and the stationary mold 800 of the mold separate. Then, the stationary mold 800 drives the push rod 200 connected to it to move in the first direction, as shown in the figure. Figure 2 The solid arrow indicates the direction. Then, the push rod 200 drives the rotating member 100 to rotate, and the core-pulling rod assembly 300 connected to the rotating member 100 moves along the second direction, as shown in the reference. Figure 2 The hollow arrow indicates the direction. The last moving core-pulling rod assembly 300 causes the partial mold to separate from the second part 902 of the workpiece 900.

[0053] The first direction is the demolding direction of the main mold. The second direction is the demolding direction of the local mold. In this way, the demolding structure can drive the second part 902 of the workpiece 900 to detach from the local mold, achieving local demolding.

[0054] As one feasible implementation, the rotating member 100 is provided with a connection port, and the first end of the push rod member 200 is provided with a connecting plate 202, at least part of the connecting plate 202 being rotatably connected to the connection port.

[0055] In some embodiments, the push rod 200 is fixed to the stationary mold 800 by the first limiting ring 400, and the middle part of the rotating member 100 is connected to the moving mold 700 of the main mold. In this way, the push rod 200 is fixedly connected to the stationary mold 800, the rotating member 100 is connected to the moving mold 700, and part of the connecting plate 202 can move in the connecting port of the rotating member 100, so there is no problem of the connecting plate 202 coming out of the connecting port.

[0056] In other embodiments, the connecting plate 202 is provided with a first limiting protrusion, and the edge of the connecting port is provided with a second limiting protrusion. The first limiting protrusion is located in the connecting port, and the second limiting protrusion is used to restrict the first limiting protrusion from coming out of the connecting port.

[0057] In some embodiments, the rotating member 100 may be a lever seesaw, the middle part of which is rotatably connected to the moving mold 700 of the main mold in the extending direction.

[0058] In some other embodiments, a seesaw pin hole may be provided in the middle of the lever seesaw, and a fixing pin 103 passes through the seesaw pin hole. The fixing pin 103 is fixed on the moving mold 700, and the lever seesaw rotates around the fixing pin 103.

[0059] For example, refer to Figure 4 and Figure 5 As shown, the push rod component 200 includes a push rod body 201. A connecting plate 202 is provided at the first end of the push rod body 201, and the second end of the push rod body 201 is connected to the stationary mold 800. The first end of the push rod body 201 is connected to the first end of a lever seesaw. The first end of the lever seesaw has a connecting port, and the connecting plate 202 is rotatably connected to the lever seesaw through the connecting port. Thus, the push rod body 201 can rotate along the lever seesaw.

[0060] For example, the second end of the push rod 201 can also be provided with a nylon buckle. When the mold is opened, the nylon buckle obtains the force of the mold opening, thereby driving the push rod 201 to move.

[0061] As one feasible implementation, the demolding structure also includes a first limiting ring 400, which is fixed to the stationary mold 800, and the push rod 200 passes through the first limiting ring 400.

[0062] For example, refer to Figure 2 and Figure 3As shown, the first limiting ring 400 is always fixed on the push rod 200, and its position does not change. During the mold closing and demolding process, the push rod 200, which passes through the first limiting ring 400, slides within the first limiting ring 400. This ensures that the movement direction of the push rod 200 during the mold closing and demolding process is always consistent with the first direction or the opposite direction of the first direction.

[0063] As one feasible implementation method, refer to Figure 1 , Figure 7 and Figure 8 As shown, the core-pulling rod assembly 300 includes a core-pulling rod support 301 and a core-pulling rod 302. The first end of the core-pulling rod support 301 is rotatably connected to the rotating member 100, and the second end of the core-pulling rod support 301 is rotatably connected to the first end of the core-pulling rod 302. The second end of the core-pulling rod 302 is connected to a partial mold.

[0064] The relative rotation direction of the core-pulling rod support 301 and the rotating part 100 is different from the relative rotation direction of the core-pulling rod support 301 and the core-pulling rod 302.

[0065] For example, refer to Figure 2 and Figure 7 As shown, the first end of the core-pulling rod support 301 is connected to the second rotating end 102 of the rotating member 100, the second end of the core-pulling rod support 301 is connected to the first end of the core-pulling rod 302, and the second end of the core-pulling rod 302 is connected to the partial mold.

[0066] For example, during demolding, the second rotating end 102 of the rotating member 100 moves away from the core-pulling rod support 301, as shown in the example. Figure 2 As indicated by the solid arrow, the moving second rotating end 102 drives the core-pulling rod support 301 to move away from the core-pulling rod, and consequently, the core-pulling rod moves away from the local mold. (Refer to...) Figure 2 Follow the direction indicated by the hollow arrow to complete the partial demolding.

[0067] It is understandable that the core-pulling rod support 301 can be a core-pulling rod support seat. The core-pulling rod 302 can be a core-pulling rod.

[0068] As one feasible implementation, the demolding structure also includes an elastic element 600, the two ends of which are connected to the rotating member 100 and the moving mold 700, respectively. The push rod member 200 and the core-pulling rod assembly 300 are located on opposite sides of the rotating member 100 along the extension direction, respectively.

[0069] The rotating member 100 has a first rotating end 101 and a second rotating end 102 in the extending direction. The first rotating end 101 is connected to the push rod member 200, and the second rotating end 102 is connected to the core-pulling rod support member 301. The elastic member 600 is connected to the first rotating end 101 or the second rotating end 102.

[0070] For example, refer to Figure 6 As shown, the rotating member 100 has a first rotating end 101 and a second rotating end 102 in its extending direction. The first rotating end 101 of the rotating member 100 is connected to the push rod member 200. The second rotating end 102 of the rotating member 100 is connected to the core-pulling rod support member 301.

[0071] For example, the elastic element 600 can be connected to either the first rotating end 101 or the second rotating end 102. The elastic element 600 is located on the side of the rotating member away from the push rod member 200 and the core-pulling rod assembly 300.

[0072] Understandably, the elastic element 600 can be a spring or a sheet.

[0073] For example, when the elastic element 600 is connected to the first rotating end 101, after mold opening, the thrust of the elastic element 600 drives the push rod 200 to move in the first direction. The push rod 200 drives the first rotating end 101 of the connected rotating element 100 to rotate in the first direction, and the second rotating end 102 of the rotating element 100 moves in the opposite direction to the first direction. The core-pulling rod support 301 moves in the opposite direction to the first direction under the drive of the second rotating end 102 of the rotating element 100, and then the core-pulling rod moves in the second direction under the drive of the core-pulling rod support 301. In this way, the workpiece 900 separates from the partial mold, realizing the separation of the second part 902 of the workpiece 900 from the partial mold.

[0074] As one feasible implementation, the rotational surface of the core-pulling rod support 301 and the rotating member 100 is perpendicular to the rotational surface of the core-pulling rod support 301 and the core-pulling rod 302.

[0075] The extension direction of the rotating member 100 is parallel to the rotational surface of the core-pulling rod support member 301 and the relative rotation of the rotating member 100.

[0076] For example, refer to Figure 2 As shown, the rotational surfaces of the core-pulling rod support 301 and the rotating member 100 are... Figure 2 The xy plane is parallel to the extension direction of the rotating component 100; the rotational plane on which the core-pulling rod support 301 and the core-pulling rod rotate relative to each other is... Figure 2The plane containing yz is perpendicular to the extension plane of the rotating member 100. Thus, the rotational plane of the core-pulling rod support 301 and the rotating member 100 relative to each other is perpendicular to the rotational plane of the core-pulling rod support 301 and the core-pulling rod relative to each other.

[0077] For example, the relative rotation direction of the core-pulling rod support 301 and the rotating member 100 is along... Figure 2 The z-direction is perpendicular to the extension direction of the rotating part 100; the extension direction of the core-pulling rod support 301 and the extension direction of the core-pulling rod 302 form an angle; the extension direction of the core-pulling rod 302 is consistent with the demolding direction of the second part 902 of the workpiece 900; the relative rotation direction of the core-pulling rod support 301 and the rotating part 100 is different from the relative rotation direction of the core-pulling rod support 301 and the core-pulling rod 302. (Refer to...) Figure 2 As shown, the angle between the core-pulling rod support 301 and the second rotating end 102 of the rotating part 100 is not equal to the angle between the core-pulling rod 302 and the local mold. This is the only way to solve the problem of inconsistent demolding directions between the main mold and the local mold.

[0078] As one feasible implementation, the demolding structure also includes a second limiting ring 500, which is fixed to the stationary mold 800, and the core-pulling rod 302 passes through the second limiting ring 500.

[0079] For example, refer to Figure 8 As shown, the second limiting ring 500 is always fixed on the stationary mold 800, and its position does not change. During the mold closing and demolding process, the core-pulling rod passing through the second limiting ring 500 slides within the second limiting ring 500. This ensures that the movement direction of the core-pulling rod during the mold closing and demolding process is always consistent with the second direction or the opposite direction of the second direction, thus achieving partial mold demolding.

[0080] As one feasible implementation, a first connecting hole 312 is provided on one of the first ends of the rotating member 100 and the core-pulling rod support member 301, and a first connecting rod 311 is provided on the other end. The first connecting rod 311 passes through the first connecting hole 312, and the extension direction of the first connecting rod 311 is perpendicular to the rotational surface of the core-pulling rod support member 301 and the rotating member 100.

[0081] In some embodiments, the second rotating end 102 of the rotating member 100 is provided with a first connecting hole 312, and the first end of the core-pulling rod support member 301 is provided with a first connecting rod 311, which passes through the first connecting hole 312.

[0082] In some other embodiments, the second rotating end 102 of the rotating member 100 is provided with a first connecting rod 311, and the first end of the core-pulling rod support member 301 is provided with a first connecting hole 312, through which the first connecting rod 311 passes.

[0083] For example, refer to Figure 7 As shown, the rotational surface of the core-pulling rod support 301 and the rotating member 100 is parallel to the extension direction of the rotating member 100, and the extension direction of the first connecting rod 311 is perpendicular to the extension direction of the rotating member 100. Thus, the first connecting rod 311 moves within the first connecting hole 312 along the rotational surface perpendicular to the relative rotation of the core-pulling rod support 301 and the rotating member 100, driving the core-pulling rod support 301 to move in the first direction or the opposite direction of the first direction, so as to realize the mold closing or demolding function of the partial mold.

[0084] As one feasible implementation, a second connecting hole 314 is provided on one of the second ends of the core-pulling rod and the core-pulling rod support 301, and a second connecting rod 313 is provided on the other end. The second connecting rod 313 passes through the second connecting hole 314, and the extension direction of the second connecting rod 313 is perpendicular to the rotational surface of the core-pulling rod support 301 and the core-pulling rod 302 that rotate relative to each other.

[0085] In some embodiments, the second end of the core-pulling rod support 301 is provided with a second connecting hole 314, and the first end of the core-pulling rod is provided with a second connecting rod 313, which passes through the second connecting hole 314.

[0086] In other embodiments, the second end of the core-pulling rod support 301 is provided with a second connecting rod 313, and the first end of the core-pulling rod is provided with a second connecting hole 314, through which the second connecting rod 313 passes.

[0087] For example, refer to Figure 7 As shown, the rotational surface of the core-pulling rod support 301 and the core-pulling rod 302 is parallel to the extension direction of the core-pulling rod, and the extension direction of the second connecting rod 313 is perpendicular to the extension direction of the core-pulling rod. Thus, the second connecting rod 313 moves within the second connecting hole 314 along the rotational surface perpendicular to the relative rotation of the core-pulling rod support 301 and the core-pulling rod, driving the core-pulling rod to move in the second direction or the opposite direction of the second direction, so as to realize the mold closing or demolding function of the partial mold.

[0088] For example, refer to Figure 2As shown, during mold opening, the moving mold 700 and the stationary mold 800 separate. Driven by the stationary mold 800, the ejector pin 200 moves in the first direction. During this movement, the ejector pin 200 also drives the first rotating end 101 of the rotating part 100 to move in the first direction, while the second rotating end 102 of the rotating part 100 moves in the opposite direction. This causes the core-pulling rod support 301 to move in the opposite direction, which in turn drives the core-pulling rod to move in the second direction, thus partially demolding the mold. This solves the problem of inconsistent demolding directions between the main mold and the partial mold, improving demolding efficiency.

[0089] For example, refer to Figure 3 As shown, the demolding structure also facilitates mold closing. The moving mold 700 and the stationary mold 800 are connected close to each other. Driven by the stationary mold 800, the push rod 200 moves in the opposite direction to the first direction, referring to... Figure 3 As indicated by the double solid arrows, during the movement of the push rod 200 in the opposite direction to the first direction, it also causes the first rotating end 101 of the rotating component 100 to move in the opposite direction to the first direction, while the second rotating end 102 of the rotating component 100 moves in the first direction. This causes the core-pulling rod support 301 to move in the first direction as well, and then causes the core-pulling rod to move in the opposite direction to the second direction. (Refer to...) Figure 3 As indicated by the double hollow arrows, this ensures a tight connection between the demolding structure and the local mold, which can improve the workpiece forming rate.

[0090] Secondly, this application provides a mold for injection molding a workpiece. The mold includes a main mold, a partial mold, and a demolding structure. The main mold is used to mold a first part of the workpiece, and the partial mold is used to mold a second part of the workpiece. The main mold includes a stationary mold 800 and a moving mold 700.

[0091] One part of the demolding structure is connected to the local mold, and the other part is connected to the main mold.

[0092] For example, the mold includes a main mold for forming a first part of the workpiece and a partial mold for forming a second part of the workpiece. The demolding directions of the main mold and the partial mold are different. The main mold includes a moving mold 700 and a stationary mold 800. After the moving mold 700 and the stationary mold 800 are closed, they form a mold cavity. The partial mold and the demolding structure are set in the mold cavity. The partial mold is used to injection mold the second part of the workpiece.

[0093] It is understood that since the mold of the present invention adopts the technical solution of the above demolding structure embodiment, it has at least the beneficial effects brought about by the technical solution of the above embodiment, which will not be elaborated here.

[0094] In the above description, it should be understood that, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, it can refer to a fixed connection, an indirect connection through an intermediate medium, or the internal connection of two elements or the interaction between two elements. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. The terms "upper," "lower," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In the description of this application, "multiple" means two or more, unless otherwise precisely specified.

[0095] The terms “first,” “second,” “third,” “fourth,” etc. (if present) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a particular order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms “comprising” and “having,” and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0096] 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 them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A demolding structure, characterized in that, For use in a mold, the mold is used for injection molding a workpiece, the workpiece including a first part and a second part, the mold including a main mold for molding the first part and a partial mold for molding the second part, the main mold including a stationary mold and a moving mold; The demolding structure includes a rotating component, a push rod component, and a core-pulling rod assembly. The rotating component is rotatably connected to the moving mold of the main mold at its center in its extension direction. The first end of the push rod component and the first end of the core-pulling rod assembly are respectively connected to the two ends of the rotating component in its extension direction. The second end of the push rod is used to connect to the stationary mold of the main mold, and the second end of the core-pulling rod assembly is connected to the partial mold; When the demolding structure is in the demolding state, the push rod is used to move in the first direction under the drive of the stationary mold. The push rod drives the rotating part to rotate, so that the core-pulling rod assembly moves in the second direction and drives the partial mold to demold. Wherein, the first direction is the demolding direction of the main mold, the second direction is the demolding direction of the partial mold, and the first direction and the second direction are different. It also includes an elastic element, the two ends of which are respectively connected to the rotating element and the moving mold, and the push rod and the core-pulling rod assembly are located on opposite sides of the rotating element along the extension direction. The rotating member has a first rotating end and a second rotating end in its extending direction. The first rotating end is connected to the push rod member, and the second rotating end is connected to the core-pulling rod assembly. The elastic member is connected to the first rotating end or the second rotating end.

2. The demolding structure according to claim 1, characterized in that, The core-pulling rod assembly includes a core-pulling rod support and a core-pulling rod. The first end of the core-pulling rod support is rotatably connected to the rotating member, and the second end of the core-pulling rod support is rotatably connected to the first end of the core-pulling rod. The second end of the core-pulling rod is connected to the partial mold. The relative rotation direction of the core-pulling rod support and the rotating component is different from the relative rotation direction of the core-pulling rod support and the core-pulling rod.

3. The demolding structure according to claim 2, characterized in that, The rotational surface of the core-pulling rod support and the rotating component is perpendicular to the rotational surface of the core-pulling rod support and the core-pulling rod. The extending direction of the rotating component is parallel to the rotational surface of the core-pulling rod support and the relative rotation of the rotating component.

4. The demolding structure according to claim 2, characterized in that, One of the rotating component and the first end of the core-pulling rod support is provided with a first connecting hole, and the other end is provided with a first connecting rod. The first connecting rod passes through the first connecting hole, and the extension direction of the first connecting rod is perpendicular to the rotational surface of the core-pulling rod support and the rotating component.

5. The demolding structure according to claim 2, characterized in that, One of the core-pulling rod and the second end of the core-pulling rod support is provided with a second connecting hole, and the other end is provided with a second connecting rod. The second connecting rod passes through the second connecting hole, and the extension direction of the second connecting rod is perpendicular to the rotational surface of the core-pulling rod support and the core-pulling rod relative to each other.

6. The demolding structure according to any one of claims 2-5, characterized in that, The rotating component is provided with a connection port, and the first end of the push rod is provided with a connecting plate, at least part of the connecting plate being rotatably connected to the connection port.

7. The demolding structure according to any one of claims 2-5, characterized in that, It also includes a first limiting ring, which is fixed to the stationary mold, and the push rod passes through the first limiting ring.

8. The demolding structure according to any one of claims 2-5, characterized in that, It also includes a second limiting ring, which is fixed to the stationary mold, and the core-pulling rod passes through the second limiting ring.

9. A mold, characterized in that, The mold is used for injection molding of workpieces. The mold includes a main mold, a partial mold, and a demolding structure as described in any one of claims 1-8. The main mold is used to form a first part of the workpiece, and the partial mold is used to form a second part of the workpiece. The main mold includes a stationary mold and a moving mold. One part of the demolding structure is connected to the local mold, and the other part is connected to the main mold.

Images