Injection mold with front mold driving back insert to insert back mold position

Abstract

This utility model discloses an injection mold in which a front mold drives a rear insert to interlock with a rear mold slide. The mold includes a front mold base plate, a front mold sprue plate, a front mold insert fixing plate, a front mold plate, a rear mold plate, a rear mold backing plate, an ejection mechanism, and a rear mold base plate. A front mold core is disposed in the front mold plate, and a rear mold core is disposed in the rear mold plate. The key feature is that a side-driven slide forming block is disposed between the front and rear mold cores. A front mold floating insert is inserted through the side-driven slide forming block on one side of the front mold core and is fixedly connected to the front mold insert fixing plate. A rear mold floating insert is inserted through the side-driven slide forming block on one side of the rear mold core, and the end of the rear mold floating insert away from the rear mold is designated as an inclined surface. This utility model uses front and rear mold floating inserts to form hooks, and the rear mold floating insert is driven by the front mold base and the rear mold slider. The overall mold design is more rational, ensuring the molding quality of the product.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, and more specifically, to an injection mold in which a front mold drives a rear insert to mate with the rear mold slide. Background Technology

[0002] Existing automotive electronics such as Figure 1 As shown, the device includes a main body a1, left and right side panels a2, and left and right pillars a3. Two hooks a4 are located above the left and right pillars a3, and only one hook a4 is located below the left and right pillars a3. A through hole a5 is provided axially inside the left and right pillars a3. During molding, the left and right side panels a2, the left and right pillars a3, and the hooks a4 are not allowed to have parting lines, and the mold design should allow for easy dimensional adjustments.

[0003] During mold design, due to product structure limitations, it is not recommended to design vertically inclined pulls for forming in the left and right slides. Furthermore, it is not recommended to use the rear mold's front and rear slides to interlock with the left and right slides for forming. Therefore, the hook can only be formed as a single piece using two upper inserts and one lower insert. In this way, the two upper inserts and one lower insert for forming the hook must be designed to float in the left and right slides. When the mold opens, the inserts must detach from the rear slide to allow for core extraction; when the mold closes, the slides must reset their inserts before the inserts can re-enter. Utility Model Content

[0004] This utility model overcomes the shortcomings of the prior art. Its structure is reasonably designed. It forms the hook by setting a front mold floating insert and a rear mold floating insert. The rear mold floating insert is driven by the front mold shovel base and the rear mold slider. The overall mold design is more reasonable and ensures the molding quality of the product.

[0005] To achieve the above objectives, the present invention provides the following technical solution: An injection mold with a front mold driving a rear insert to interlock with a rear mold slide includes a front mold base plate, a front mold sprue plate, a front mold insert fixing plate, a front mold plate, a rear mold plate, a rear mold backing plate, an ejection mechanism, and a rear mold base plate. A front mold core is provided in the front mold plate, and a rear mold core is provided in the rear mold plate. A side-driven slide forming block is provided between the front mold core and the rear mold core. A front mold floating insert is inserted through one side of the side-driven slide forming block located on the front mold core. The front mold floating insert is fixedly connected to the front mold insert fixing plate. A rear mold floating insert is inserted through one side of the side-driven slide forming block located on the rear mold core. The end of the rear mold floating insert away from the rear mold is set as a rear mold insert inclined surface. A rear mold slider is provided on one side of the rear mold insert inclined surface. One side of the rear mold slider is slidably engaged with the rear mold insert inclined surface. A front mold spade base is fixedly connected to the side of the front mold base plate, and the other side of the rear mold slider is slidably engaged with the front mold spade base.

[0006] By adopting the above technical solution, a front mold floating insert is set in each of the two side-drive slide forming blocks, and a rear mold floating insert is set in one of the side-drive slide forming blocks. Both front mold floating inserts are fixedly installed on the front mold insert fixing plate. The rear mold floating insert is driven by the rear mold slider. The lateral movement of the rear mold slider is converted into the vertical movement of the rear mold floating insert through the inclined guide groove of the rear mold slider. The front mold shovel base that drives the movement of the rear mold slider takes advantage of the structure and action of the front mold that needs to be parted to realize the core pulling action before the front mold plate and the rear mold plate are parted. This structure can effectively avoid the solution of installing the rear mold floating insert on the rear mold pad and achieving parting between the rear mold plate and the rear mold pad (if the rear mold plate and the rear mold pad are parted, an additional structure is needed to effectively ensure the stability of its parting distance and parting state, prevent interference between the rear mold floating insert and the interlocking slide, and increase the complexity of the mold structure and the risk of failure). This structure can also effectively prevent the risk of timing control failure in a scheme where the slider of the connecting rear mold floating insert is driven by another set of hydraulic cylinders.

[0007] Preferably, a compression spring is connected between the rear mold floating insert and the rear mold core, and a hydraulic cylinder is linked to the side drive sliding forming block. The hydraulic cylinder drives the side drive sliding forming block to slide, and a micro-control switch is provided on one side of the hydraulic cylinder.

[0008] By adopting the above technical solution, the compression spring can buffer and reset the floating insert of the rear mold, and the hydraulic cylinder is controlled by a micro-switch to control the core pulling stroke and triggering action. There are two micro-switches.

[0009] Preferably, a connecting block is provided between the hydraulic cylinder and the side-drive sliding forming block, and the connecting block and the side-drive sliding forming block are fixedly connected by a snap-fit ​​structure. A forming insert is provided inside the side-drive sliding forming block, and a guide insert is provided inside the side-drive sliding forming block. The forming insert and the guide insert slide in cooperation. A vertical-drive side forming block and a side forming block opposite to the vertical-drive side forming block are also provided between the front mold core and the rear mold core. A guide inclined block is provided on one side of the side forming block, and the guide inclined block cooperates with the inclined surface of the side forming block. The guide inclined block is linked to the connecting block. A core-pulling rod connected to the connecting block is provided inside the side-drive sliding forming block.

[0010] By adopting the above technical solution, the connecting block is configured such that one end is connected to the hydraulic cylinder and driven by the cylinder, while the other end is fixed to the side-drive sliding forming block via a snap-fit ​​structure. This means the connecting block allows the hydraulic cylinder to indirectly move the side-drive sliding forming block. The forming insert is used to form the cylindrical portion, and the guide insert, located within the side-drive sliding forming block, provides excellent positioning and guidance when installing the forming insert. The relative arrangement of the vertical side forming block and the lateral forming block, in conjunction with the front and rear mold cores, is used to form the main body. A guide angled block, which engages with the inclined surface of the lateral forming block, is driven by the hydraulic cylinder via the connecting block. Furthermore, a core-pulling rod is incorporated within the side-drive sliding forming block for forming through holes.

[0011] Preferably, the front and rear templates are equipped with corresponding strong magnetic locking modules, and a bushing spring is provided between the front mold floating insert fixing plate and the front template.

[0012] By adopting the above technical solution, by installing corresponding strong magnetic locking modules on the front and rear templates, and by setting bushing springs between the front mold floating insert fixing plate and the front template, the mold can achieve the following opening sequence (front template and front mold floating insert fixing plate — front mold floating insert fixing plate and front mold sprue plate — front mold sprue plate and front mold base plate — front template and rear template — hydraulic cylinder core pulling — product ejection).

[0013] The beneficial effects of this utility model are: This utility model has a reasonable structural design. It uses a front mold floating insert and a rear mold floating insert to form the hook. The rear mold floating insert is driven by the front mold shovel base and the rear mold slider. The overall mold design is more reasonable and ensures the molding quality of the product. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of an automotive electronic product according to a specific embodiment of the present utility model. Figure 1 ; Figure 2 This is a schematic diagram of the structure of an automotive electronic product according to a specific embodiment of the present utility model. Figure 2 ; Figure 3 This is a schematic diagram of the mold structure according to a specific embodiment of the present utility model; Figure 4 This is a schematic diagram illustrating the structure of the front mold core and the rear mold core in a specific embodiment of this utility model; Figure 5 This is a schematic diagram illustrating the internal structure of the front mold core and the rear mold core in a specific embodiment of this utility model. Figure 6 for Figure 5 Enlarged view of point A in the middle; Figure 7This is a schematic diagram illustrating the structure of the front mold core and the rear mold core in a specific embodiment of this utility model. Figure 8 This is a schematic diagram illustrating the structure of the front mold insert fixing plate in a specific embodiment of this utility model.

[0015] In the diagram: a1, main body; a2, side panel; a3, column; a4, hook; a5, perforation; 100, front mold base plate; 200, front mold sprue plate; 300, front mold insert fixing plate; 400, front mold plate; 401, strong magnetic lock module; 402, bushing spring; 500, rear mold plate; 600, rear mold pad; 700, ejection mechanism; 800, rear mold base plate; 1, front mold core; 2. Rear mold core; 21. Compression spring; 3. Side drive sliding forming block; 31. Forming insert; 32. Guide insert; 33. Core pulling rod; 4. Front mold floating insert; 5. Rear mold floating insert; 51. Rear mold insert inclined surface; 6. Rear mold slider; 7. Front mold base; 8. Hydraulic cylinder; 81. Micro-control switch; 82. Connecting block; 9. Vertical drive side forming block; 91. Side forming block; 92. Guide inclined block. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] like Figure 1-8 As shown, an injection mold in which a front mold drives a rear insert to mate with a rear mold slide includes a front mold base plate 100, a front mold sprue plate 200, a front mold insert fixing plate 300, a front mold plate 400, a rear mold plate 500, a rear mold backing plate 600, an ejection mechanism 700, and a rear mold base plate 800. A front mold core 1 is disposed in the front mold plate 400, and a rear mold core 2 is disposed in the rear mold plate 500. A side-driven slide forming block 3 is disposed between the front mold core 1 and the rear mold core 2. The side-driven slide forming block 3 is located on one side of the front mold core 1 and has a front mold floating insert passing through it. Part 4, the front mold floating insert 4 is fixedly connected to the front mold insert fixing plate 300, the side drive sliding forming block 3 is located on one side of the rear mold core 2 and the rear mold floating insert 5 is inserted through it, the end of the rear mold floating insert 5 away from the rear mold is set as the rear mold insert inclined surface 51, the rear mold slider 6 is provided on one side of the rear mold insert inclined surface 51, one side of the rear mold slider 6 is slidably engaged with the rear mold insert inclined surface 51, the front mold base 7 is fixedly connected to the side of the front mold base plate 100, and the other side of the rear mold slider 6 is inclinedly slidably engaged with the front mold base 7.

[0018] By adopting the above technical solution, a front mold floating insert 4 is set in each of the two side-drive slide forming blocks 3, and a rear mold floating insert 5 is set in one of the side-drive slide forming blocks 3. Both front mold floating inserts 4 are fixedly installed on the front mold insert fixing plate 300. The rear mold floating insert 5 is driven by the rear mold slider 6. The lateral movement of the rear mold slider 6 is converted into the vertical movement of the rear mold floating insert 5 through the inclined guide groove of the rear mold slider 6. The front mold shovel base 7 that drives the movement of the rear mold slider 6 takes advantage of the structure and action of the front mold that needs to be parted to realize the core pulling action before the parting of the front template 400 and the rear template 500. This structure effectively avoids the solution where the rear mold floating insert 5 is installed on the rear mold base plate 600, and the parting is achieved between the rear template 500 and the rear mold base plate 600 (if the rear template 500 and the rear mold base plate 600 are parted, an additional structure is needed to effectively ensure the stability of the parting distance and parting state, prevent interference between the rear mold floating insert 5 and the interlocking slide, and increase the complexity of the mold structure and the risk of failure). This structure can also effectively prevent the timing control failure risk of the solution where the slider connecting the rear mold floating insert 5 is driven by another set of hydraulic cylinders 8.

[0019] A compression spring 21 connects the rear mold floating insert 5 and the rear mold core 2. The side drive sliding forming block 3 is linked to a hydraulic cylinder 8. The hydraulic cylinder 8 drives the side drive sliding forming block 3 to slide. A micro-control switch 81 is provided on one side of the hydraulic cylinder 8. The compression spring 21 can buffer and reset the rear mold floating insert 5. The hydraulic cylinder 8 is controlled by the micro-control switch 81 to control the core pulling stroke and triggering action. There are two micro-control switches 81.

[0020] Furthermore, a connecting block 82 is provided between the hydraulic cylinder 8 and the side-drive sliding forming block 3. The connecting block 82 and the side-drive sliding forming block 3 are fixedly connected by a snap-fit ​​structure. A forming insert 31 is provided inside the side-drive sliding forming block 3. A guide insert 32 is provided inside the side-drive sliding forming block 3. The forming insert 31 and the guide insert 32 are slidably engaged. A vertical-drive side forming block 9 and a side forming block 91 opposite to the vertical-drive side forming block 9 are also provided between the front mold core 1 and the rear mold core 2. A guide inclined block 92 is provided on one side of the side forming block 91. The guide inclined block 92 is engaged with the inclined surface of the side forming block 91. The guide inclined block 92 is linked to the connecting block 82. A core-pulling rod 33 connected to the connecting block 82 is provided inside the side-drive sliding forming block 3. The connecting block 82 is connected to the hydraulic cylinder 8 at one end and driven by the hydraulic cylinder 8, while the other end is fixed to the side-drive sliding forming block 3 via a snap-fit ​​structure. This means that the hydraulic cylinder 8 can indirectly drive the side-drive sliding forming block 3 to move via the connecting block 82. The forming insert 31 forms part of the column a3, and the guide insert 32 is located in the side-drive sliding forming block 3, providing excellent positioning and guidance when the forming insert 31 is installed into the side-drive sliding forming block 3. The relative arrangement of the vertical side forming block 9 and the side forming block 91, in conjunction with the front mold core 1 and the rear mold core 2, is used to form the main body a1. A guide inclined block 92, which engages with the inclined surface of the side forming block 91, is driven by the hydraulic cylinder 8 via the connecting block 82. Furthermore, a core-pulling rod 33 is provided in the side-drive sliding forming block 3 for forming the through hole a5.

[0021] Furthermore, corresponding strong magnetic locking modules 401 are provided on the front template 400 and the rear template 500, and a bushing spring 402 is provided between the front mold floating insert 4 fixing plate and the front template 400. By installing corresponding strong magnetic locking modules 401 on the front template 400 and the rear template 500, and providing bushing spring 402 between the front mold floating insert 4 fixing plate and the front template 400, the mold can achieve the following opening sequence (front template 400 and front mold floating insert 4 fixing plate — front mold floating insert 4 fixing plate and front mold sprue plate 200 — front mold sprue plate 200 and front mold base plate 100 — front template 400 and rear template 500 — hydraulic cylinder 8 core pulling — product ejection).

[0022] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An injection mold in which a front mold drives a rear insert to mate with a rear mold slide, comprising a front mold base plate (100), a front mold sprue plate (200), a front mold insert fixing plate (300), a front mold plate (400), a rear mold plate (500), a rear mold backing plate (600), an ejection mechanism (700), and a rear mold base plate (800), wherein a front mold core (1) is provided in the front mold plate (400), and a rear mold core (2) is provided in the rear mold plate (500), characterized in that, A side-drive sliding forming block (3) is provided between the front mold core (1) and the rear mold core (2). The side-drive sliding forming block (3) is located on one side of the front mold core (1) and a front mold floating insert (4) is provided. The front mold floating insert (4) is fixedly connected to the front mold insert fixing plate (300). The side-drive sliding forming block (3) is located on one side of the rear mold core (2) and a rear mold floating insert (5) is provided. The end of the rear mold floating insert (5) away from the rear mold is set as the rear mold insert inclined surface (51). A rear mold slider (6) is provided on one side of the rear mold insert inclined surface (51). One side of the rear mold slider (6) is slidably engaged with the rear mold insert inclined surface (51). A front mold shovel base (7) is fixedly connected to the side of the front mold base plate (100). The other side of the rear mold slider (6) is slidably engaged with the front mold shovel base (7).

2. The injection mold of claim 1, wherein, A compression spring (21) is connected between the rear mold floating insert (5) and the rear mold core (2).

3. An injection mold with a front mold driving a back insert to mate with a back mold to form a mold cavity, according to claim 1 or 2, wherein, The side-drive sliding forming block (3) is linked to a hydraulic cylinder (8), which drives the side-drive sliding forming block (3) to slide. A micro-control switch (81) is provided on one side of the hydraulic cylinder (8).

4. The injection mold of claim 3, wherein, A connecting block (82) is provided between the oil cylinder (8) and the side drive sliding forming block (3), and the connecting block (82) and the side drive sliding forming block (3) are fixedly connected by a snap-fit ​​structure.

5. The injection mold of claim 4, wherein, The side drive sliding forming block (3) has a forming insert (31) inside and a guide insert (32) inside. The forming insert (31) and the guide insert (32) slide together.

6. The injection mold of claim 5, wherein, A vertical drive side forming block (9) and a side forming block (91) opposite to the vertical drive side forming block (9) are also provided between the front mold core (1) and the rear mold core (2).

7. The injection mold of claim 6, wherein, A guide inclined block (92) is provided on one side of the side forming block (91). The guide inclined block (92) cooperates with the inclined surface of the side forming block (91). The guide inclined block (92) is linked to the connecting block (82).

8. The injection mold of claim 7, wherein, The side-drive sliding forming block (3) is provided with a core-pulling rod (33) that is connected to the connecting block (82).

9. The injection mold of claim 3, wherein, The front template (400) and the rear template (500) are equipped with corresponding strong magnetic lock modules (401).

10. The injection mold of claim 9, wherein, A bushing spring (402) is provided between the front mold floating insert (4) fixing plate and the front template (400).

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