Machining molds to prevent pin breakage

Abstract

This utility model relates to the field of mold processing technology, and in particular to a mold processing solution for preventing insert breakage. The technical solution includes a fixed mold base plate, a moving mold plate, a moving mold base plate, and a slide ejection mechanism. A fixed mold plate is mounted on the top of the moving mold plate; a fixed mold base plate is mounted on the top of the fixed mold plate; a support plate is mounted on the bottom of the moving mold plate; a push rod fixing plate is mounted on the bottom of the support plate; and a moving mold base plate is mounted on the bottom of the push rod fixing plate. Several sets of slide ejection mechanisms are installed between the moving mold plate and the support plate. This utility model optimizes the traditional slide structure by making improvements at the positions of the inclined guide pillars and the slide locking blocks. This ensures that during the demolding process after processing, the front mold insert and the slide insert can be demolded normally without breakage, thereby achieving stable production and extending the mold's service life.

Description

Technical Field

[0001] This utility model relates to the field of processing mold technology, specifically to a processing mold for preventing pin breakage. Background Technology

[0002] With the rapid development of the new energy vehicle industry, battery packs, as core energy storage units, have been subject to stringent requirements for lightweight, high-precision, and mass production capabilities of their structural components. Injection molding is the mainstream processing method for battery pack structural components. As the core equipment for molding, the reliability of the key component, the insert, directly affects production efficiency and product quality. Therefore, we propose a processing mold to prevent insert breakage.

[0003] The existing technology still has the following drawbacks in its use:

[0004] In existing technologies, when the front mold insert is inserted into the slide insert, the traditional slide demolding mechanism will break the insert. This not only requires the machine to be stopped for inspection and maintenance of the mold, affecting processing efficiency, but also the broken insert fragments can easily fall into the mold, causing the mold to need to be completely disassembled for repair. This is detrimental to production continuity, product defect rate and mold life.

[0005] In view of this, we propose a machining mold to prevent pin breakage in order to solve the existing problems. Utility Model Content

[0006] The purpose of this invention is to provide a processing mold to prevent pin breakage, so as to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a processing mold for preventing pin breakage, comprising a fixed mold base plate, a movable mold plate, a movable mold base plate and a sliding demolding mechanism, wherein a fixed mold plate is installed on the top of the movable mold plate;

[0008] A fixed mold base plate is installed on the top of the fixed template;

[0009] A support plate is installed at the bottom of the moving template;

[0010] A push rod fixing plate is installed at the bottom of the support plate;

[0011] A moving mold base plate is installed at the bottom of the push rod fixing plate;

[0012] Several sets of sliding demolding mechanisms are installed between the moving template and the support plate.

[0013] Preferably, the slide demolding mechanism includes two slide seats, and a slide locking block is installed between the two slide seats.

[0014] Preferably, the row seat has an L-shaped structure, and a guide post hole is provided inside the row seat, and an inclined guide post is movably installed inside the guide post hole.

[0015] Preferably, a slide is fixedly installed on one side of the slide seat, and two front mold inserts are inserted into the slide, with the top of the front mold inserts extending out to form the slide.

[0016] Preferably, a slide insert is installed at both the longitudinal center position and the bottom end of the front mold insert, and the slide insert is inserted laterally into the interior of the slide.

[0017] Preferably, the longitudinal movement range of the front mold insert is equal to the distance between the two sliding inserts.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] This invention optimizes the traditional sliding structure by making improvements at the positions of the inclined guide pillar and the sliding locking block. This ensures that the front mold insert and the sliding insert can be properly demolded during the demolding process after the mold is finished, without the insert breaking. This achieves the effect of stable production and extending the service life of the mold. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a three-dimensional cross-sectional structural diagram of the present invention;

[0022] Figure 3 This is a schematic diagram of the first three-dimensional structure of the demolding mechanism of this utility model.

[0023] Figure 4 This is a schematic diagram of the second three-dimensional structure of the sliding demolding mechanism of this utility model;

[0024] Figure 5 This is a schematic diagram of the first front cross-sectional structure of the demolding mechanism of this utility model;

[0025] Figure 6 This is a front external schematic diagram of the demolding mechanism of this utility model;

[0026] Figure 7 This is a schematic diagram of the second front cross-sectional structure of the demolding mechanism of this utility model.

[0027] In the diagram: 1. Fixed mold base plate; 2. Fixed template; 3. Moving template; 4. Support plate; 5. Moving mold base plate; 6. Push rod fixing plate; 7. Slide demolding mechanism; 701. Front mold insert; 702. Slide insert; 703. Slide; 704. Slide seat; 705. Angled guide post; 706. Slide locking block; 707. Guide post hole. Detailed Implementation

[0028] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0029] like Figure 1 - Figure 7 As shown, the processing mold for preventing pin breakage proposed in this utility model includes a fixed mold base plate 1, a movable mold plate 3, a movable mold base plate 5, and a sliding demolding mechanism 7. The top of the movable mold plate 3 is equipped with a fixed mold plate 2. The movable mold plate 3 can close with the fixed mold plate 2 to form an injection cavity, thereby facilitating the injection of injection material into the cavity for plastic part molding.

[0030] A fixed mold base plate 1 is installed on the top of the fixed mold plate 2. The fixed mold base plate 1 is located at the top of the processing mold and can be connected to the fixed mold side of the injection molding machine to support the installation and positioning of the fixed mold part.

[0031] A support plate 4 is installed at the bottom of the moving template 3. The support plate 4 can support the moving template 3 and provide installation space for the moving template side ejection mechanism.

[0032] A push rod fixing plate 6 is installed at the bottom of the support plate 4. The push rod fixing plate 6 is used to fix the ejection element, such as push rod, push tube, etc., thereby driving the push rod fixing plate 6 to move and realize the demolding of the plastic part.

[0033] The bottom of the push rod fixing plate 6 is equipped with a moving mold base plate 5. The moving mold base plate 5 is installed at the bottom of the entire processing mold and can be connected to the moving mold side of the injection molding machine to support the overall structure of the moving mold.

[0034] Several sets of sliding demolding mechanisms 7 are installed between the moving template 3 and the support plate 4. The sliding demolding mechanisms 7 can ensure that the side holes, side bosses, side grooves, and oblique buckles are consistent with the mold opening direction by lateral core pulling and resetting, so that the processing mold can open smoothly without damaging the product.

[0035] Furthermore, the slide demolding mechanism 7 includes two slide seats 704, with a slide locking block 706 installed between the two slide seats 704. The slide seats 704 are the basic load-bearing base of the slide 703 mechanism, integrating functions such as slide 703 sliding, inclined guide post 705 connection, and locking fit, improving the stability of the slide 703 movement and preventing unilateral force sway. The slide locking block 706 can wedge the slide seat 704 with the inclined surface when the mold is closed, offsetting the lateral thrust of the injection high pressure on the slide 703, preventing the slide 703 from retreating and causing flash and dimensional deviation of the product. When the mold is opened, it separates with the template, releasing the sliding space of the slide 703.

[0036] Furthermore, the slide seat 704 has an L-shaped structure, and a guide post hole 707 is provided inside the slide seat 704. An inclined guide post 705 is movably installed inside the guide post hole 707. The guide post hole 707 is the motion guide channel for the inclined guide post 705, ensuring the linear accuracy of the inclined guide post 705 when driving the slide 703 to slide. The inclined guide post 705 is the core of the power transmission of the slide 703. When the mold opens, the mold parting surface drives the inclined guide post 705 to move axially. By using its own tilt angle, the mold opening force is converted into the lateral force of the slide 703, which drives the slide seat 704 to drive the slide 703 to complete the core pulling. When the mold closes, the slide 703 is pushed back to reset.

[0037] Furthermore, a slide 703 is fixedly installed on one side of the slide seat 704. Two front mold inserts 701 are inserted into the slide 703. The top of the front mold inserts 701 extends to form the slide 703. The slide 703 is the main body for lateral movement and is responsible for driving the molding parts to achieve demolding and mold closing. The front mold inserts 701 are used to form the lateral features of the battery pack, such as the lateral branches of the cell positioning holes, the water cooling plate side flow channel interface, and the side boss. The top extension of the slide 703 can ensure precise docking with the front mold cavity when the mold is closed, ensuring the molding dimensional accuracy. When the mold is opened, it slides away with the slide 703 to avoid product damage.

[0038] Furthermore, a sliding insert 702 is installed at the longitudinal center and bottom of the front mold insert 701, and the sliding insert 702 is inserted laterally into the interior of the sliding block 703. The sliding insert 702 can cooperate with the front mold insert 701 to form a complex lateral structure, and provide radial constraint on the front mold insert 701 to prevent the insert from shaking due to the large length-to-diameter ratio and injection pressure, reduce the risk of insert breakage, share the melt impact force during injection, and avoid the front mold insert 701 being overloaded alone.

[0039] Furthermore, the longitudinal movement range of the front mold insert 701 is equal to the distance between the two sliding inserts 702.

[0040] Working principle: When the mold opens, the front mold insert 701 first disengages from the slide insert 702. The guide post hole 707 has enough hollow distance so that when the inclined guide post 705 moves in the mold opening direction, it will not drive the slide seat 704. The slide 703 and the slide insert 702 slide towards the slide 703 until the front mold insert 701 completely disengages from the slide insert 702. Only then does the inclined guide post 705 drive the slide seat 704, the slide 703 and the slide insert 702 to slide outward until they disengage from the slide 703 and are snapped back. During the mold opening process, the slide locking block 706 has a sufficiently long straight edge that abuts against the slide seat 704 to ensure that the slide 703 will not loosen when the front mold insert 701 disengages from the slide insert 702.

[0041] When the mold is closed, the conical surface of the sliding locking block 706 first touches the sliding seat 704, pushing the sliding seat 704 and simultaneously driving the entire sliding block 703. The sliding insert 702 closes the mold first, and then the front mold insert 701 closes the mold.

[0042] The above specific embodiments are merely several preferred embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A processing die for preventing the breakage of inserts, comprising a fixed die seat plate (1), a movable die plate (3), a movable die seat plate (5) and a stripper mechanism (7) of the slide type, characterized in that: The top of the moving template (3) is fitted with a fixed template (2); The top of the fixed template (2) is equipped with a fixed template base plate (1); The bottom of the moving template (3) is equipped with a support plate (4); A push rod fixing plate (6) is installed at the bottom of the support plate (4). The bottom of the push rod fixing plate (6) is equipped with a moving mold base plate (5); Several sets of sliding demolding mechanisms (7) are installed between the moving template (3) and the support plate (4).

2. The process die to prevent gage pin breakage according to claim 1 wherein: The slide demolding mechanism (7) includes two slide seats (704), and a slide locking block (706) is installed between the two slide seats (704).

3. The process die to prevent gage pin breakage of claim 2, wherein: The row seat (704) has an L-shaped structure, and a guide post hole (707) is provided inside the row seat (704). An inclined guide post (705) is movably installed inside the guide post hole (707).

4. The process die to prevent gage pin breakage of claim 2 wherein: A slide (703) is fixedly installed on one side of the slide seat (704), and two front mold inserts (701) are inserted into the slide (703). The top of the front mold inserts (701) extends into the slide (703).

5. The process die to prevent gage pin breakage according to claim 4 wherein: The front mold insert (701) is equipped with a slide insert (702) at its longitudinal center and bottom, and the slide insert (702) is inserted laterally into the slide (703).

6. The process die to prevent gage pin breakage according to claim 5 wherein: The longitudinal movement range of the front mold insert (701) is equal to the distance between the two sliding inserts (702).

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