Injection mold structure and injection molding equipment
By setting damping parts and limit structures with different damping values in the injection mold structure, segment separation is achieved, which solves the problem of double tightening force in the injection molding process, ensuring product integrity.
Patent Information
- Application Number
- CN202323394212.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-12
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2033-12-12
AI Technical Summary
During the injection molding process, the product is easily affected by the double tightening force when it moves away from the front die core when pulling the rear die core, causing product damage.
An injection mold structure is designed, including a substrate, a front mold main board, a front mold core, a first rear molding, a first damping part, a second rear molding, a rear molding core and a mold core, and a damping part of different damping values and The limit structure realizes segmented separation to avoid the product being affected by double tightening forces during movement.
Through segmented separation, ensure the product is smoothly separated from the front die core and die kernel, avoid breakage, and ensure the integrity of the product.
Smart Images
Figure CN222290863U_ABST
Abstract
Description
Technical Field
[0001] The present application belongs to the technical field of injection molding equipment, and more specifically, relates to an injection mold mechanism and injection molding equipment. Background Art
[0002] The injection mold structure is a tool used to manufacture plastic products. The injection mold structure is provided with a mold core and a mold core. The mold core is provided inside a cavity for forming the external shape of the product. The mold core can be inserted into or pulled out of the cavity to form the internal structure of the product.
[0003] When manufacturing products with longer lengths, in order to reduce the clamping force between the product and the mold core, two mold cores are usually provided in the injection mold structure, namely the front mold core and the rear mold core, and the front mold core and the rear mold core are detachably connected. During the injection molding process, the front mold core and the rear mold core are connected, and both the front mold core and the rear mold core are located in the cavity. At the same time, the plastic particles are heated and melted into a molten state, and then the molten particles are injected into the cavity under the action of the corresponding injection device, and gradually fill the cavity. After the molten plastic particles cool down, the rear mold core is pulled away from the front mold core, and the product adheres to the rear mold core and is separated from the front mold core and the mold core together with the rear mold core.
[0004] Since the product adheres to both the rear mold core and the front mold core, as well as the inner wall of the cavity in the mold core, when the rear mold core is pulled away from the front mold core, the product is easily broken by the dual influence of the clamping force between the front mold core and the mold core. Utility Model Content
[0005] The purpose of the embodiments of the present application is to provide an injection mold structure and an injection molding device, aiming to solve the technical problem in the prior art that when the product is pulled away from the front mold core, the product is easily broken by the dual influence of the clamping force between the front mold core and the clamping force between the mold core.
[0006] To achieve the above-mentioned purpose, according to one aspect of the present application, an injection mold structure is provided, which includes: a substrate; a front mold main board, which is arranged on one side of the substrate and can be close to or away from the substrate along a preset direction; a front mold core, which is arranged on the front mold main board; a first rear mold board, which is arranged on a side of the front mold main board away from the substrate and can be close to or away from the front mold main board along a preset direction; a first damping part, which is arranged between the front mold main board and the first rear mold board and is used to prevent the first rear mold board from approaching or moving away from the front mold main board; a second rear mold board, which is arranged on a side of the first rear mold board away from the front mold main board and can be close to or away from the first rear mold board along a preset direction; a rear mold core, which is arranged on the second rear mold board and is detachably connected to the front mold core; a mold core, which is arranged on the first rear mold board, A holding space for holding a front mold core and a rear mold core is provided in the mold core, and both the front mold core and the rear mold core can be inserted into or withdrawn from the holding space along a preset direction; a second damping part is provided between the first rear mold plate and the second rear mold plate, and is used to prevent the second rear mold plate from approaching or moving away from the first rear mold plate, and the damping value of the second damping part is greater than the damping value of the first damping part; the injection mold structure has a mold closing state and a mold opening state, and when the injection mold structure is in the mold closing state, the first rear mold plate is fitted with the front mold main board, the second rear mold plate is fitted with the first rear mold plate, the front mold core and the rear mold core are connected, and both are located in the holding space; when the injection mold structure is in the mold opening state, the first rear mold plate is separated from the front mold main board, the second rear mold plate is separated from the first rear mold plate, the front mold core and the rear mold core are separated, and both are located outside the holding space.
[0007] Optionally, the first damping part is mounted on the first rear mold plate, and a first damping hole is provided on the front mold main plate, and the first damping part can penetrate into or be withdrawn from the first damping hole along a preset direction.
[0008] Optionally, a first limiting structure and a second limiting structure are further provided between the front mold main board and the first rear mold main board, the first limiting structure is provided on the front mold main board, and the second limiting structure is provided on the first rear mold main board; one of the first limiting structure and the second limiting structure is a first limiting column, and the other is a first limiting hole, the first limiting column can move in the first limiting hole along a preset direction, the first limiting column has a first limiting end, and the first limiting hole can prevent the first limiting end from detaching from the first limiting hole.
[0009] Optionally, the second damping part is mounted on the second rear template, a second damping hole is provided on the first rear template, and the second damping part can penetrate into or be withdrawn from the second damping hole along a preset direction.
[0010] Optionally, the injection mold structure also includes a sprue plate, which is arranged on a side of the front mold main board close to the base plate; the injection mold structure also includes an elastic part, a first accommodating groove is provided on the front mold main board, and a second accommodating groove is provided on the sprue plate, the second accommodating groove corresponds to the first accommodating groove, and is connected to form an accommodating cavity when the injection mold structure is in a closed mold state; when the injection mold structure is in a closed mold state, the elastic part is located in the accommodating cavity and is in a compressed state to apply a preset thrust to the front mold main board; when the injection mold structure is in an open mold state, the elastic part is located in the first accommodating groove and is in a free state.
[0011] Optionally, a third limiting structure and a fourth limiting structure are further provided between the front mold main board and the sprue plate, the third limiting structure is provided on the front mold main board, and the fourth limiting structure is provided on the sprue plate; one of the third limiting structure and the fourth limiting structure is a second limiting column, and the other is a second limiting hole, the second limiting column can move in the second limiting hole along a preset direction, the second limiting column has a second limiting end, and the second limiting hole can prevent the second limiting end from detaching from the second limiting hole; or, the injection mold structure also includes a limiting part, the limiting part is installed at the bottom of the first accommodating groove, the elastic part is sleeved on the outer periphery of the limiting part, and the limiting part has a limiting end cover for limiting the elastic part from detaching from the limiting part.
[0012] Optionally, the gate plate can approach or move away from the substrate along a preset direction; the injection mold structure also includes a third damping part, which is arranged between the gate plate and the substrate and is used to prevent the gate plate from approaching or moving away from the substrate, and the damping value of the third damping part is smaller than the damping value of the first damping part.
[0013] Optionally, the third damping part is installed on the water inlet plate, and a third damping hole is provided on the base plate. The third damping part can move in the third damping hole along a preset direction; the third damping part has a third limiting end, and the third damping hole can prevent the third limiting end from detaching from the third damping hole.
[0014] Optionally, the injection mold also includes a guide portion, which is arranged on the substrate, and the length direction of the guide portion is parallel to the preset direction. The front mold main board, the first rear mold plate and the second rear mold plate are all provided with through holes, and the guide portion can be penetrated in each through hole; or, the injection mold structure also includes an auxiliary damping portion, and the auxiliary damping portion includes a first auxiliary damping member and a second auxiliary damping member, the first auxiliary damping member is installed on the first rear mold plate, and the second auxiliary damping member is installed on the second rear mold plate, and the first auxiliary damping member and the second auxiliary damping member are detachably connected; when the injection mold structure is in a closed mold state, the first auxiliary damping member is connected to the second auxiliary damping member; when the injection mold structure is in an open mold state, the first auxiliary damping member is separated from the second auxiliary damping member.
[0015] According to another aspect of the present application, an injection molding device is provided. The injection molding device includes an injection molding machine and the above-mentioned injection mold structure, and the injection mold structure is arranged on the injection molding machine.
[0016] The beneficial effect of the injection mold structure provided by the present application is that compared with the prior art, when the injection mold structure in the present application needs to be switched from the mold closing state to the mold opening state, the second rear template is first pulled to move in the direction away from the first rear template. Since the damping value of the second damping part in the present application is greater than the damping value of the first damping part, during this process, the first rear template will first move together with the second rear template in the direction away from the front mold main board, and the rear mold core will move in the direction away from the front mold core. After the first rear template is separated from the front mold main board, the rear mold core will also be separated from the front mold core, and the product adhered to the front mold core will also be separated from the front mold core together with the rear mold core; then continue to pull the second rear template to move in the direction away from the first rear template. During this process, the second rear template will be separated from the first rear template, the product will also be separated from the mold core, and will be completely adhered to the rear mold core, and finally the intact product can be ejected from the rear mold core. By adopting the injection mold structure of the present application to inject products, the effect of segmented separation is achieved, avoiding the dual influence of the clamping force between the product and the front mold core and the clamping force between the product and the mold core when the product is pulled away from the substrate. As a result, the product can not only be separated smoothly from the front mold core, but also can be separated smoothly from the mold core, thereby ensuring the integrity of the product. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.
[0018] Figure 1 A schematic diagram of the structure of the injection mold provided in an embodiment of the present application when the injection mold structure is in a mold closing state at a viewing angle;
[0019] Figure 2 A schematic structural diagram of the injection mold structure provided in an embodiment of the present application in another viewing angle state when the injection mold structure is in a mold closing state;
[0020] Figure 3 A schematic front cross-sectional view of the injection mold structure provided in an embodiment of the present application when in a mold closing state;
[0021] Figure 4 A first front cross-sectional schematic diagram of the injection mold structure provided in an embodiment of the present application after the front mold main plate and the gate plate are separated;
[0022] Figure 5 for Figure 4 The enlarged schematic diagram of point A in the middle;
[0023] Figure 6 A second front cross-sectional schematic diagram of the injection mold structure provided in an embodiment of the present application after the front mold main plate and the gate plate are separated;
[0024] Figure 7 A front cross-sectional schematic diagram of the injection mold structure provided in an embodiment of the present application after the front mold main plate is separated from the gate plate and the gate plate is separated from the base plate;
[0025] Figure 8 A first front cross-sectional schematic diagram after the front mold main plate and the gate plate are separated, the gate plate and the base plate are separated, and the first rear mold plate is separated from the front mold main plate in the injection mold structure provided in an embodiment of the present application;
[0026] Fig. 9 A second front cross-sectional schematic diagram after the front mold main plate and the gate plate are separated, the gate plate and the base plate are separated, and the first rear mold plate is separated from the front mold main plate in the injection mold structure provided in an embodiment of the present application;
[0027] Fig.10 A schematic diagram of the structure of the injection mold provided in an embodiment of the present application when the injection mold structure is in an open mold state;
[0028] Fig.11 A schematic front view of the injection mold structure provided in an embodiment of the present application when in a mold opening state.
[0029] The reference numerals in the above drawings are as follows:
[0030] 100, substrate; 110, third damping hole; 200, front mold main board; 210, first damping hole; 220, first accommodating groove; 300, front mold core; 400, first rear mold plate; 410, first limit hole; 420, second damping hole; 430, moving through hole; 500, first damping part; 600, second rear mold plate; 610, moving groove; 700, rear mold core; 710, rear mold core body; 720, rear mold core end; 800, mold core; 810, accommodating space; 900, second damping part; 100 0. Feeding part; 1010. Feeding through hole; 1100. First limiting column; 1110. First limiting terminal; 1200. Gate plate; 1210. Second containing groove; 1300. Elastic part; 1400. Second limiting column; 1410. Second limiting terminal; 1500. Limiting part; 1510. Limiting end cover; 1600. Third damping part; 1610. Third limiting terminal; 1700. Guide part; 1800. Auxiliary damping part; 1810. First auxiliary damping member; 1820. Second auxiliary damping member. DETAILED DESCRIPTION
[0031] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.
[0032] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or indirectly connected to the other element. In the absence of conflict, the embodiments in this application and the features in the embodiments may be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.
[0033] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to 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.
[0034] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.
[0035] As described in the background technology, at present, the injection mold structure is a tool for manufacturing plastic products. The injection mold structure is provided with a mold core and a mold core. The mold core is provided with a cavity for forming the external shape of the product. The mold core can be inserted into or pulled out of the cavity to form the internal structure of the product. When manufacturing products with a longer length, in order to reduce the clamping force between the product and the mold core, two mold cores are usually provided in the injection mold structure, namely the front mold core and the rear mold core, and the front mold core and the rear mold core are detachably connected. During the injection molding process, the front mold core and the rear mold core are connected, and the front mold core and the rear mold core are both located in the cavity. At the same time, the plastic particles are heated and melted into a molten state, and then the molten particles are injected into the cavity under the action of the corresponding injection device, and gradually fill the cavity. After the molten plastic particles are cooled, the rear mold core is pulled to move away from the front mold core, and the product adheres to the rear mold core and is separated from the front mold core and the mold core together with the rear mold core. Since the product adheres to both the rear mold core and the front mold core, as well as the inner wall of the cavity in the mold core, when the rear mold core is pulled away from the front mold core, the product is easily broken by the dual influence of the clamping force between the front mold core and the mold core.
[0036] Reference Figures 1 to 3 , Figure 7 , Figure 8 , Fig.10 and Fig.11In order to solve the above problems, according to one aspect of the present application, an embodiment of the present application provides an injection mold structure, which includes a substrate 100, a front mold main board 200, a front mold core 300, a first rear mold board 400, a first damping part 500, a second rear mold board 600, a rear mold core 700, a mold core 800 and a second damping part 900, wherein the front mold main board 200 is arranged on one side of the substrate 100, and can approach or move away from the substrate 100 along a preset direction; the front mold core 300 is arranged on the front mold main board 200; the first rear mold board 400 is arranged on a side of the front mold main board 200 away from the substrate 100, and can approach or move away from the front mold main board 200 along a preset direction; the first damping part 500 is arranged between the front mold main board 200 and the first rear mold board 400, and is used to prevent the first rear mold board 400 from Approaching or moving away from the front mold main board 200; the second rear mold plate 600 is arranged on a side of the first rear mold plate 400 away from the front mold main board 200, and can approach or move away from the first rear mold plate 400 along a preset direction; the rear mold core 700 is arranged on the second rear mold plate 600 and is detachably connected to the front mold core 300; the mold core 800 is arranged on the first rear mold plate 400, and a accommodating space 810 for accommodating the front mold core 300 and the rear mold core 700 is arranged in the mold core 800, and the front mold core 300 and the rear mold core 700 can both penetrate into or withdraw from the accommodating space 810 along a preset direction; the second damping part 900 is arranged between the first rear mold plate 400 and the second rear mold plate 600, and is used to prevent the second rear mold plate 600 from approaching or moving away from the first rear mold plate 400, and the damping value of the second damping part 900 is greater than the damping value of the first damping part 500.
[0037] The injection mold structure has a closed mold state and an open mold state. When the injection mold structure is in the closed mold state, the first rear mold plate 400 is in contact with the front mold main plate 200, the second rear mold plate 600 is in contact with the first rear mold plate 400, the front mold core 300 and the rear mold core 700 are connected, and both are located in the accommodating space 810; when the injection mold structure is in the open mold state, the first rear mold plate 400 is separated from the front mold main plate 200, the second rear mold plate 600 is separated from the first rear mold plate 400, the front mold core 300 and the rear mold core 700 are separated, and both are located outside the accommodating space 810.
[0038] In an embodiment of the present application, the substrate 100 is fixedly mounted on an external device, and the preset direction is parallel to the horizontal direction; the front mold core 300 is fixedly mounted on the front mold main board 200, and four front mold cores 300 are provided, and the positions of the four front mold cores 300 correspond one by one to the four corner positions of the front mold main board 200; the rear mold core 700 includes a rear mold core body 710 and a rear mold core end 720 fixedly mounted on the rear mold core body 710 near one end of the front mold core 300, the length of the rear mold core body 710 is greater than the length of the rear mold core end 720, and four rear mold cores 700 are provided, which correspond one by one to the four front mold cores 300 respectively; a mounting through hole is provided on the first rear mold plate 400, and the mold core 800 is fixedly mounted in the mounting through hole, and the accommodating space 810 is an accommodating through cavity, and four accommodating through cavities are provided, which correspond one by one to the four front mold cores 300 respectively. A groove for embedding the rear core end 720 is provided on the end surface of the front mold core 300 close to the rear mold core 700, so that the front mold core 300 can be sleeved on the outer periphery of the rear core end 720, and the groove is connected with the accommodating space 810, so that the molten plastic particles flowing into the groove can flow out from the groove and adhere to the outer peripheral surface of the rear mold core 700; a feed groove for the molten plastic particles to flow into the front mold core 300 is provided on the end surface of the front mold core 300 away from the rear mold core 700, and the feed groove is connected with the groove. The injection mold structure also includes a feed part 1000, which is partially fixedly installed on the substrate 100. A feed through hole 1010 is provided in the feed part 1000. The first end of the feed through hole 1010 extends to a side of the substrate 100 away from the front mold main board 200 and is connected to the outside world. The second end of the feed through hole 1010 is connected to a feed trough. An external traction device is drivingly connected to the second rear template 600 to drive the second rear template 600 to approach or move away from the first rear template 400 along a preset direction.
[0039] When the injection mold structure in the present application needs to be switched from the mold closing state to the mold opening state, the second rear template 600 is first pulled to move in a direction away from the first rear template 400. Since the damping value of the second damping part 900 in the present application is greater than the damping value of the first damping part 500, during this process, the first rear template 400 will first move in a direction away from the front mold main board 200 together with the second rear template 600, and the rear mold core 700 will move in a direction away from the front mold core 300. After the first rear template 400 and the front mold main board 200 are aligned, the first rear template 400 and the front mold main board 200 are moved together. After separation, the rear mold core 700 will also be separated from the front mold core 300, and the product adhered to the front mold core 300 will also be separated from the front mold core 300 together with the rear mold core 700; then continue to pull the second rear mold plate 600 to move away from the first rear mold plate 400. During this process, the second rear mold plate 600 will be separated from the first rear mold plate 400, and the product will also be separated from the mold core 800, and will be completely adhered to the rear mold core 700. Finally, the intact product can be ejected from the rear mold core 700. By using the injection mold structure of the present application to inject products, the effect of segmented separation is achieved, and it is avoided that in the process of pulling the product to move away from the substrate 100, the product will be affected by the clamping force between the front mold core 300 and the clamping force between the mold core 800 at the same time, so that the product can not only be separated from the front mold core 300 smoothly, but also can be separated from the mold core 800 smoothly, thereby ensuring the integrity of the product.
[0040] Reference Figure 8 In this embodiment, the first damping part 500 is installed on the first rear mold plate 400, and the front mold main plate 200 is provided with a first damping hole 210. The first damping part 500 can penetrate into or withdraw from the first damping hole 210 along a preset direction.
[0041] In the embodiment of the present application, the first damping part 500 is a rubber plug opener and is fixedly mounted on the surface of the first rear mold plate 400 close to the front mold main board 200 by means of threaded fitting, and the shape of the rubber plug opener and closeer is similar to a cylinder; the length direction of the first damping part 500 is parallel to the preset direction, and the extension direction of the first damping hole 210 is parallel to the preset direction; when the first damping part 500 penetrates into or withdraws from the first damping hole 210, the surface of the first damping part 500 and the hole wall of the first damping hole 210 rub against each other, so that the first damping part 500 can prevent the first rear mold plate 400 from approaching or moving away from the front mold main board 200. In addition, four first damping parts 500 are provided, and they correspond to the four front mold cores 300 one by one. Of course, in other embodiments, the first damping part 500 can also be installed on the surface of the front mold main board 200 close to the first rear mold plate 400, and the first damping hole 210 is provided on the surface of the first rear mold plate 400 close to the front mold main board 200.
[0042] Reference Fig. 9As an optional method in the embodiment of the present application, a first limiting structure and a second limiting structure are further provided between the front mold main board 200 and the first rear mold 400, the first limiting structure is provided on the front mold main board 200, and the second limiting structure is provided on the first rear mold 400; one of the first limiting structure and the second limiting structure is a first limiting column 1100, and the other is a first limiting hole 410, the first limiting column 1100 can move in the first limiting hole 410 along a preset direction, the first limiting column 1100 has a first limiting end 1110, and the first limiting hole 410 can prevent the first limiting end 1110 from detaching from the first limiting hole 410.
[0043] In this optional method, the length direction of the first limiting column 1100 is parallel to the preset direction, and the end of the first end of the first limiting column 1100 is fixedly embedded in the front mold main board 200 from the surface of the front mold main board 200 close to the first rear template 400 by means of threaded fitting, and the first limiting column 1100 forms a first limiting structure; the extension direction of the first limiting hole 410 is parallel to the preset direction, and the first limiting hole 410 extends from the surface of the first rear template 400 close to the front mold main board 200 toward the inside of the first rear template 400, and the first limiting hole 410 forms a second limiting structure. The first limiting column 1100 includes a first limiting body and a first limiting end cap, the first limiting end cap is fixedly connected to the end of the first limiting body close to the first rear template 400, and the radius of the first limiting end cap is greater than the radius of the first limiting body; the first limiting hole 410 is a first stepped hole, the first stepped hole includes a first hole section and a second hole section, the first hole section extends from the surface of the first rear template 400 close to the front template toward the inside of the first rear template 400, the second hole section extends from the bottom of the first hole section toward the inside of the first rear template 400, the aperture of the second hole section is greater than or equal to the radius of the first limiting end cap, the aperture of the first hole section is greater than or equal to the radius of the first limiting body, and is smaller than the radius of the first limiting end cap, so as to prevent the first limiting end head 1110 from detaching from the first limiting hole 410, and the first limiting end cap is formed as the first limiting end head 1110. The first limiting structure and the second limiting structure not only limit the movement range of the first rear template 400, thereby avoiding the complete separation of the front mold main board 200 and the first rear template 400, and thus facilitating the front mold main board 200 and the first rear template 400 to be fitted again, but also play a guiding role. In addition, the first limiting structure and the second limiting structure are provided in four groups, and correspond to the four front mold cores 300 one by one. Of course, in other embodiments, the first limiting column 1100 can also be fixedly installed on the first rear template 400 to form a second limiting structure, and the first limiting hole 410 can also be provided on the front mold main board 200 to form a first limiting structure.
[0044] Reference Figure 7 , Fig.10 as well as Fig.11In this embodiment, the second damping part 900 is installed on the second rear template 600, and the first rear template 400 is provided with a second damping hole 420. The second damping part 900 can penetrate into or withdraw from the second damping hole 420 along a preset direction.
[0045] In the embodiment of the present application, the second damping part 900 is a rubber plug shutter, and is fixedly installed on the surface of the second rear template 600 close to the first rear template 400 by means of threaded fitting, and the shape of the rubber plug shutter is similar to a cylinder; the length direction of the second damping part 900 is parallel to the preset direction, and the extension direction of the second damping hole 420 is parallel to the preset direction; when the second damping part 900 penetrates into or withdraws from the second damping hole 420, the surface of the second damping part 900 and the hole wall of the second damping hole 420 rub against each other, so that the second damping part 900 can prevent the second rear template 600 from approaching or moving away from the first rear template 400. In addition, four second damping parts 900 are provided, and they correspond to the four front mold cores 300 one by one. Of course, in other embodiments, the second damping part 900 can also be installed on the surface of the first rear template 400 close to the second rear template 600, and the second damping hole 420 is provided on the surface of the second rear template 600 close to the first rear template 400.
[0046] Reference Figure 4 and Figure 5 The injection mold structure in this embodiment also includes a sprue plate 1200, which is arranged on a side of the front mold main board 200 close to the base plate 100; the injection mold structure also includes an elastic part 1300, a first accommodating groove 220 is provided on the front mold main board 200, and a second accommodating groove 1210 is provided on the sprue plate 1200, the second accommodating groove 1210 corresponds to the first accommodating groove 220, and is connected to form an accommodating cavity when the injection mold structure is in a mold closing state; when the injection mold structure is in a mold closing state, the elastic part 1300 is located in the accommodating cavity and is in a compressed state to apply a preset thrust to the front mold main board 200; when the injection mold structure is in an open mold state, the elastic part 1300 is located in the first accommodating groove 220 and is in a free state.
[0047] In the embodiment of the present application, the nozzle plate 1200 is provided with a mounting groove extending in a direction parallel to the preset direction, and another part of the feed part 1000 is embedded in the mounting groove and can move in the mounting groove along the preset direction; the nozzle plate 1200 is provided to guide the flow direction of the melt, distribute the melt to the front mold core 300, and prevent air and bubbles from entering. The elastic part 1300 is a spring, the first receiving groove 220 is provided on the surface of the front mold main board 200 close to the nozzle plate 1200, and the second receiving groove 1210 is provided on the surface of the nozzle plate 1200 close to the front mold main board 200, and the first receiving groove 220 is coaxial with the second receiving groove 1210; when the injection mold structure switches from the mold closing state to the mold opening state, the front mold main board 200 is first separated from the nozzle plate 1200 under the thrust applied by the elastic part 1300, thereby ensuring the normal progress of the subsequent mold opening operation. In order to ensure the normal separation of the front mold main plate 200 and the nozzle plate 1200, four elastic parts 1300 are provided, and they correspond to the four front mold cores 300 respectively.
[0048] Reference Figure 6 As an optional method in the embodiment of the present application, a third limiting structure and a fourth limiting structure are further provided between the front mold main board 200 and the sprue plate 1200, the third limiting structure is provided on the front mold main board 200, and the fourth limiting structure is provided on the sprue plate 1200; one of the third limiting structure and the fourth limiting structure is a second limiting column 1400, and the other is a second limiting hole, the second limiting column 1400 can move in the second limiting hole along a preset direction, the second limiting column 1400 has a second limiting end 1410, and the second limiting hole can prevent the second limiting end 1410 from detaching from the second limiting hole.
[0049] In this optional method, the length direction of the second limiting column 1400 is parallel to the preset direction, and the end of the first end of the second limiting column 1400 is fixedly embedded in the sprue plate 1200 from the surface of the sprue plate 1200 close to the front mold main board 200 by means of threaded fitting, and the second limiting column 1400 forms a fourth limiting structure; the extension direction of the second limiting hole is parallel to the preset direction, and the second limiting hole penetrates the front mold main board 200 from the surface of the front mold main board 200 close to the sprue plate 1200, and the second limiting hole forms a third limiting structure. The second limiting column 1400 includes a second limiting body and a second limiting end cap, the second limiting end cap is fixedly connected to the end of the second limiting body close to the first rear template 400, and the radius of the second limiting end cap is greater than the radius of the second limiting body; the second limiting hole is a limiting through hole, the aperture of the second limiting hole is greater than or equal to the radius of the second limiting body, and smaller than the radius of the second limiting end 1410, so as to prevent the second limiting end 1410 from separating from the second limiting hole, and the second limiting end cap is formed as the second limiting end 1410; a moving through hole 430 corresponding to the second limiting hole is provided on the first rear template 400, and the moving through hole 430 The extension direction of the second limiting hole is parallel to the extension direction of the second limiting hole, and the aperture of the movable through hole 430 is greater than or equal to the radius of the second limiting end cap; the second rear template 600 is provided with a movable groove 610 corresponding to the movable through hole 430 on the surface close to the first rear template 400, and the extension direction of the movable groove 610 is parallel to the extension direction of the movable through hole 430, and the groove diameter of the movable groove 610 is greater than or equal to the radius of the second limiting end cap; when the injection mold structure is in the mold closing state, the second limiting hole, the movable through hole 430 and the movable groove 610 are connected to each other to form a movable cavity for the second limiting body to move along the preset direction. The third limiting structure and the fourth limiting structure not only limit the movement range of the front mold main board 200, thereby avoiding the front mold main board 200 and the nozzle plate 1200 from being completely separated, and then facilitating the front mold main board 200 and the nozzle plate 1200 to be fitted again, but also play a guiding role. In addition, the third limiting structure and the fourth limiting structure are provided in four groups, and correspond to the four front mold cores 300 one by one. Of course, in other embodiments, the second limiting column 1400 can also be fixedly installed on the front mold main board 200 to form a third limiting structure, and the second limiting hole can also be provided on the nozzle plate 1200 to form a fourth limiting structure.
[0050] Reference Figure 4 and Figure 5 As an optional method in the embodiment of the present application, the injection mold structure also includes a limiting portion 1500, the limiting portion 1500 is installed at the bottom of the first accommodating groove 220, the elastic portion 1300 is sleeved on the outer periphery of the limiting portion 1500, and the limiting portion 1500 has a limiting end cover 1510 for limiting the elastic portion 1300 from detaching from the limiting portion 1500.
[0051] In this optional mode, the limiting part 1500 is a limiting bolt, and the end of the first end of the limiting bolt is fixedly embedded in the front mold main board 200 from the bottom of the first receiving groove 220 by means of threaded matching. The limiting bolt includes a bolt body and a nut, and the nut is fixedly installed at the end of the bolt body away from the bottom of the first receiving groove 220. The radius of the nut is greater than the radius of the bolt body and greater than the radius of the elastic part 1300 to prevent the elastic part 1300 from detaching from the bolt body, and the nut is formed as a limiting end cover 1510. The setting of the limiting part 1500 can make the elastic part 1300 stay stably in the first receiving groove 220, so that after the front mold main board 200 and the nozzle plate 1200 are again fitted, the elastic part 1300 can still apply a preset thrust to the front mold main board 200.
[0052] Reference Figure 7 In this embodiment, the gate plate 1200 can approach or move away from the substrate 100 along a preset direction; the injection mold structure also includes a third damping part 1600, which is arranged between the gate plate 1200 and the substrate 100 and is used to prevent the gate plate 1200 from approaching or moving away from the substrate 100, and the damping value of the third damping part 1600 is less than the damping value of the first damping part 500.
[0053] Reference Figures 1 to 11 In the process of switching the injection mold structure from the mold closing state to the mold opening state in the present application, the front mold main board 200 and the nozzle plate 1200 will be separated first under the action of the elastic part 1300, and the front mold main board 200 will move away from the nozzle plate 1200. After the front mold main board 200 moves to the extreme position, since the damping value of the third damping part 1600 is less than the damping value of the first damping part 500, the nozzle plate 1200 will be separated from the base plate 100 at this time, and the nozzle plate 1200 will move away from the base plate 100. The first rear template 400 will be separated from the front mold main board 200 after the gate plate 1200 moves to the desired position, and the first rear template 400 will move away from the front mold main board 200. After the first rear template 400 moves to the limit position, the second rear template 600 will be separated from the first rear template 400, and the second rear template 600 will carry the rear mold core 700 with the product attached to move away from the first rear template 400 until the rear mold core 700 is completely separated from the mold core 800. The third damping part 1600 is provided to facilitate the separation operation of the gate plate 1200 and the base plate 100 before the separation operation of the first rear template 400 and the front mold main board 200, thereby ensuring the integrity of the product.
[0054] Reference Figure 7As an optional method in the embodiment of the present application, the third damping part 1600 is installed on the nozzle plate 1200, and a third damping hole 110 is provided on the substrate 100. The third damping part 1600 can move in the third damping hole 110 along a preset direction; the third damping part 1600 has a third limiting end 1610, and the third damping hole 110 can prevent the third limiting end 1610 from detaching from the third damping hole 110.
[0055] In this optional method, the third damping part 1600 is a limiting step column, the length direction of the limiting step column is parallel to the preset direction, and the end of the first end of the limiting step hole is fixedly embedded in the nozzle plate 1200 from the surface of the nozzle plate 1200 close to the substrate 100 by means of threaded cooperation; the extension direction of the third damping hole 110 is parallel to the preset direction, and the third damping hole 110 penetrates the substrate 100 from the surface of the substrate 100 away from the nozzle plate 1200, and the third damping hole 110 is a stepped through hole; in the process of the third damping part 1600 penetrating into or out of the third damping hole 110, the surface of the third damping part 1600 rubs against the hole wall of the third damping hole 110, so that the third damping part 1600 can prevent the nozzle plate 1200 from approaching or moving away from the substrate 100.
[0056] The third damping part 1600 includes a third damping body and a third limiting end cap, the third limiting end cap is fixedly connected to the end of the third damping body away from the nozzle plate 1200, and the radius of the third limiting end cap is greater than the radius of the third damping body; the third damping hole 110 includes a large hole section and a lower hole section, the large hole section extends from the surface of the substrate 100 away from the nozzle plate 1200 toward the inside of the substrate 100, and the small hole section extends from the hole bottom of the large hole section toward the inside of the substrate 100, the aperture of the small hole section is greater than or equal to the radius of the third damping body, and smaller than the radius of the third limiting end cap, the aperture of the large hole section is greater than the radius of the third limiting end cap, so as to prevent the third limiting end cap from being separated from the large hole section, and the third limiting end cap is formed as a third limiting end head 1610. In addition, there are four third damping parts 1600, which correspond to the four front mold cores 300 one by one. Of course, in other embodiments, the third damping portion 1600 may also be disposed on the surface of the base plate 100 close to the nozzle plate 1200 , and the third damping hole 110 may be disposed on the surface of the nozzle plate 1200 close to the base plate 100 .
[0057] Reference Figures 1 to 11 As an optional method in the embodiment of the present application, the injection mold also includes a guide portion 1700, which is arranged on the substrate 100, and the length direction of the guide portion 1700 is parallel to the preset direction. The front mold main board 200, the first rear template 400 and the second rear template 600 are all provided with through holes, and the guide portion 1700 can be penetrated into each through hole.
[0058] In this optional mode, the guide part 1700 is a guide column, which is fixedly mounted on the base plate 100. The nozzle plate 1200 is also provided with through holes, each of which is coaxial and extends in a direction parallel to a preset direction; each of which is fixedly embedded with a sleeve coaxial with the through hole, and the guide part 1700 is inserted in each sleeve; the guide part 1700 plays a guiding role, so that the nozzle plate 1200, the front mold main plate 200, the first rear mold plate 400 and the second rear mold plate 600 can only move along the preset direction. In addition, there are four guide parts 1700, and the four guide parts 1700 correspond to the four front mold cores 300 one by one.
[0059] Reference Figures 1 to 4 , Figures 6 to 8 as well as Figure 10 to Figure 11 As an optional method in the embodiment of the present application, the injection mold structure also includes an auxiliary damping part 1800, and the auxiliary damping part 1800 includes a first auxiliary damping member 1810 and a second auxiliary damping member 1820. The first auxiliary damping member 1810 is installed on the first rear template 400, and the second auxiliary damping member 1820 is installed on the second rear template 600. The first auxiliary damping member 1810 and the second auxiliary damping member 1820 are detachably connected; when the injection mold structure is in a closed mold state, the first auxiliary damping member 1810 is connected to the second auxiliary damping member 1820; when the injection mold structure is in an open mold state, the first auxiliary damping member 1810 is separated from the second auxiliary damping member 1820.
[0060] In this optional embodiment, the auxiliary damping part 1800 is a magnetic opener and closeer, which includes a first magnetic part and a second magnetic part that can be magnetically matched with the first magnetic part. The first magnetic part is fixedly mounted on the circumferential surface of the first rear template 400, and the first magnetic part is formed as a first auxiliary damping part 1810. The second magnetic part is fixedly mounted on the circumferential surface of the second rear template 600 and corresponds to the first magnetic part. The second magnetic part is formed as a second auxiliary damping part 1820. The auxiliary damping part 1800 is further ensured that in the process of switching from the mold closing state to the mold opening state, the second rear template 600 and the first rear template 400 are the last separation operation, thereby ensuring the integrity of the product.
[0061] Reference Figures 1 to 11 According to one aspect of the present application, an embodiment of the present application provides an injection molding device, which includes an injection molding machine and the above-mentioned injection mold structure, wherein the injection mold structure is arranged on the injection molding machine, and the driving end of the injection molding machine is drivingly connected to the second rear template 600. The injection molding machine not only provides molten plastic particles to the injection mold structure, but also pulls the second rear template 600 to move in a direction away from the first rear template 400.
[0062] In summary, the injection mold structure and injection molding equipment provided by the present embodiment have at least the following beneficial technical effects: when the injection mold structure in the present application needs to be switched from the mold closing state to the mold opening state, the second rear mold plate 600 is first pulled to move in a direction away from the first rear mold plate 400. Since the damping value of the second damping part 900 in the present application is greater than the damping value of the first damping part 500, during this process, the first rear mold plate 400 will first move together with the second rear mold plate 600 in a direction away from the front mold main board 200, and the rear mold core 700 will move in a direction away from the front mold core 300. After the first rear mold plate 400 is separated from the front mold main board 200, the rear mold core 700 will also be separated from the front mold core 300, and the product adhered to the front mold core 300 will also be separated from the front mold core 300 together with the rear mold core 700; then continue to pull the second rear mold plate 600 to move away from the first rear mold plate 400. During this process, the second rear mold plate 600 will be separated from the first rear mold plate 400, and the product will also be separated from the mold core 800 and will be completely adhered to the rear mold core 700. Finally, the intact product can be ejected from the rear mold core 700. By adopting the injection mold structure in the present application to inject products, the effect of segmented separation is achieved, avoiding the dual influence of the clamping force between the product and the front mold core 300 and the clamping force between the product and the mold core 800 when the product is pulled away from the substrate 100. As a result, the product can not only be separated smoothly from the front mold core 300, but also can be separated smoothly from the mold core 800, thereby ensuring the integrity of the product.
[0063] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.
Claims
1. An injection mold structure, characterized in that: The injection mold structure comprises: a base plate (100); A front mold main board (200), the front mold main board (200) being arranged on one side of the base plate (100) and being able to approach or move away from the base plate (100) along a preset direction; A front mold core (300), wherein the front mold core (300) is arranged on the front mold main board (200); A first rear mold plate (400), the first rear mold plate (400) being arranged on a side of the front mold main plate (200) away from the base plate (100), and being capable of approaching or moving away from the front mold main plate (200) along the preset direction; a first damping portion (500), the first damping portion (500) being arranged between the front mold main plate (200) and the first rear mold plate (400) and being used to prevent the first rear mold plate (400) from approaching or moving away from the front mold main plate (200); a second rear template (600), the second rear template (600) being arranged on a side of the first rear template (400) away from the front template main board (200), and being capable of approaching or moving away from the first rear template (400) along the preset direction; a rear mold core (700), the rear mold core (700) being arranged on the second rear mold plate (600) and being detachably connected to the front mold core (300); A mold core (800), wherein the mold core (800) is disposed on the first rear mold plate (400), and a receiving space (810) for receiving the front mold core (300) and the rear mold core (700) is disposed in the mold core (800), and both the front mold core (300) and the rear mold core (700) can be inserted into or withdrawn from the receiving space (810) along the preset direction; a second damping portion (900), the second damping portion (900) being disposed between the first rear template (400) and the second rear template (600) and being used to prevent the second rear template (600) from approaching or moving away from the first rear template (400), the damping value of the second damping portion (900) being greater than the damping value of the first damping portion (500); The injection mold structure has a mold closing state and a mold opening state. When the injection mold structure is in the mold closing state, the first rear mold plate (400) is in contact with the front mold main plate (200), the second rear mold plate (600) is in contact with the first rear mold plate (400), the front mold core (300) and the rear mold core (700) are connected, and both are located within the accommodating space (810); when the injection mold structure is in the mold opening state, the first rear mold plate (400) is separated from the front mold main plate (200), the second rear mold plate (600) is separated from the first rear mold plate (400), the front mold core (300) and the rear mold core (700) are separated, and both are located outside the accommodating space (810).
2. The injection mold structure according to claim 1, characterized in that: The first damping part (500) is installed on the first rear mold plate (400), and a first damping hole (210) is provided on the front mold main plate (200). The first damping part (500) can penetrate into or withdraw from the first damping hole (210) along the preset direction.
3. The injection mold structure according to claim 2, characterized in that: A first limiting structure and a second limiting structure are further provided between the front mold main plate (200) and the first rear mold plate (400), wherein the first limiting structure is provided on the front mold main plate (200) and the second limiting structure is provided on the first rear mold plate (400); One of the first limiting structure and the second limiting structure is a first limiting column (1100), and the other is a first limiting hole (410). The first limiting column (1100) can move in the first limiting hole (410) along the preset direction. The first limiting column (1100) has a first limiting end (1110). The first limiting hole (410) can prevent the first limiting end (1110) from leaving the first limiting hole (410).
4. The injection mold structure according to claim 1, characterized in that: The second damping part (900) is installed on the second rear template (600), and the first rear template (400) is provided with a second damping hole (420), and the second damping part (900) can penetrate into or withdraw from the second damping hole (420) along the preset direction.
5. The injection mold structure according to claim 1, characterized in that: The injection mold structure further comprises a nozzle plate (1200), wherein the nozzle plate (1200) is arranged on a side of the front mold main plate (200) close to the base plate (100); The injection mold structure further comprises an elastic portion (1300), a first receiving groove (220) is provided on the front mold main plate (200), and a second receiving groove (1210) is provided on the gate plate (1200), the second receiving groove (1210) corresponds to the first receiving groove (220), and is connected to the first receiving groove (220) when the injection mold structure is in the mold closing state, so as to form a receiving cavity; When the injection mold structure is in the mold closing state, the elastic portion (1300) is located in the accommodating cavity and is in a compressed state to apply a preset thrust to the front mold main board (200); When the injection mold structure is in the mold opening state, the elastic portion (1300) is located in the first receiving groove (220) and is in a free state.
6. The injection mold structure according to claim 5, characterized in that: A third limiting structure and a fourth limiting structure are further provided between the front mold main board (200) and the nozzle plate (1200), the third limiting structure being provided on the front mold main board (200), and the fourth limiting structure being provided on the nozzle plate (1200); One of the third limiting structure and the fourth limiting structure is a second limiting column (1400), and the other is a second limiting hole, the second limiting column (1400) can move in the second limiting hole along the preset direction, the second limiting column (1400) has a second limiting end (1410), and the second limiting hole can prevent the second limiting end (1410) from leaving the second limiting hole; or, The injection mold structure also includes a limiting portion (1500), the limiting portion (1500) is installed at the bottom of the first accommodating groove (220), the elastic portion (1300) is sleeved on the outer periphery of the limiting portion (1500), and the limiting portion (1500) has a limiting end cover (1510) for limiting the elastic portion (1300) from detaching from the limiting portion (1500).
7. The injection mold structure according to claim 5, characterized in that: The nozzle plate (1200) can approach or move away from the substrate (100) along the preset direction; the injection mold structure also includes a third damping part (1600), the third damping part (1600) is arranged between the nozzle plate (1200) and the substrate (100), and is used to prevent the nozzle plate (1200) from approaching or moving away from the substrate (100), and the damping value of the third damping part (1600) is smaller than the damping value of the first damping part (500).
8. The injection mold structure according to claim 7, characterized in that: The third damping part (1600) is mounted on the nozzle plate (1200); a third damping hole (110) is provided on the base plate (100); the third damping part (1600) can move in the third damping hole (110) along the preset direction; the third damping part (1600) has a third limiting end (1610); the third damping hole (110) can prevent the third limiting end (1610) from being separated from the third damping hole (110).
9. The injection mold structure according to any one of claims 1 to 8, characterized in that: The injection mold further comprises a guide portion (1700), the guide portion (1700) being arranged on the substrate (100), the length direction of the guide portion (1700) being parallel to the preset direction, the front mold main plate (200), the first rear mold plate (400) and the second rear mold plate (600) being provided with through holes, and the guide portion (1700) being capable of being inserted into each of the through holes; or, The injection mold structure further comprises an auxiliary damping part (1800), wherein the auxiliary damping part (1800) comprises a first auxiliary damping member (1810) and a second auxiliary damping member (1820), wherein the first auxiliary damping member (1810) is mounted on the first rear mold plate (400), and the second auxiliary damping member (1820) is mounted on the second rear mold plate (600), and the first auxiliary damping member (1810) and the second auxiliary damping member (1820) are detachably connected; When the injection mold structure is in the mold closing state, the first auxiliary damping member (1810) is connected to the second auxiliary damping member (1820); when the injection mold structure is in the mold opening state, the first auxiliary damping member (1810) is separated from the second auxiliary damping member (1820).
10. An injection molding device, characterized in that: The injection molding equipment comprises an injection molding machine and an injection mold structure according to any one of claims 1 to 9, wherein the injection mold structure is arranged on the injection molding machine.