A low pressure injection mold for lithium battery seals

Abstract

The utility model discloses a kind of low-pressure injection mould for lithium battery sealing element, it is related to injection mould technical field, for the forming of the sealing plastic piece of the two ends of lithium battery core, the injection mould includes lower mould of upper mould, lower plate, intermediate plate, spacer plate and bottom plate, the upper mould includes upper plate, the inside of the upper plate is equipped with two groups of feeding block, the inside of each feeding block is equipped with two feeding ports, the top of the lower plate is also provided with two groups of LR sliding block, the sliding block is provided with inclined column insertion hole.The utility model in operating process, for security, cannot exert too large pressure and too high temperature to it, therefore by the setting of the low-pressure forming mould of the utility model, when clamping, inclined column drives LR sliding block to be pressed to the middle, when opening mould, inclined column drives LR block to be pulled apart to two sides, so that the mould is convenient to take and place product, convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, specifically a low-pressure injection mold for lithium battery sealing components. Background Technology

[0002] As the market develops, portable electronic products are placing increasingly higher demands on the safety performance of lithium batteries. In addition, for lithium battery manufacturers, flexible manufacturing will be an industry trend.

[0003] Currently, the main method used in the lithium battery industry to improve drop failure is to use diaphragm-coated seals at the cell ends to bind the cells. However, existing cell seals are generally installed and fixed by injection molding, and the effectiveness of existing injection molds for lithium battery seals needs improvement. Therefore, this invention proposes a low-pressure injection mold for lithium battery seals. Utility Model Content

[0004] Technical problems to be solved

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a low-pressure injection mold for lithium battery sealing components.

[0006] Technical solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a low-pressure injection mold for lithium battery sealing components, used for molding the sealing plastic parts at both ends of a lithium battery cell. Since the lithium battery cell is injection molded in-mold, excessive pressure and temperature cannot be applied to it during operation for safety reasons. Therefore, through the setting of the low-pressure molding mold of this utility model, when the mold is closed, the inclined column drives the LR sliding block to press it in the middle, and when the mold is opened, the inclined column drives the LR block to pull it open to both sides, making the mold easy to pick up and put down products and convenient to use. The injection mold includes an upper mold, a lower mold consisting of a lower mold plate, an intermediate plate, a partition plate and a bottom plate. The upper mold includes an upper mold plate, and two sets of feeding blocks are installed inside the upper mold plate. Each feeding block has two feeding ports inside.

[0008] The top of the lower template is also provided with two sets of LR sliding blocks. The sliding blocks are provided with inclined column insertion holes. A spring is connected to one side of the sliding blocks. The interior of the upper template is also provided with inclined columns corresponding to the inclined column insertion holes. The inclined columns are movably connected to the inclined column insertion holes.

[0009] Positioning wedges are also fixedly connected to the middle position and both sides of the upper template.

[0010] Preferably, the upper and lower templates are provided with soft rubber on the upper and lower sides corresponding to the product placement positions.

[0011] Preferably, a top plate is provided in the gap of the partition plate, and a pin is installed on the top of the top plate.

[0012] Preferably, the lower template and the intermediate plate have ejector pin holes inside for mounting ejector pins, and the ejector pins are movably mounted inside the ejector pin holes.

[0013] Preferably, a cold water pipe is installed inside the feed block, and cold water pipes are also installed inside the upper template and the sliding pressure block.

[0014] Preferably, each set of sliding blocks includes an L-shaped sliding block and an R-shaped sliding block.

[0015] Beneficial effects:

[0016] Compared with existing technologies, this low-pressure injection mold for lithium battery seals has the following advantages:

[0017] Since lithium battery cells are injection molded in a mold, excessive pressure and temperature cannot be applied to them during operation for safety reasons. Therefore, through the setting of the low-pressure molding mold of this utility model, when the mold is closed, the inclined column drives the LR sliding block to press in the middle, and when the mold is opened, the inclined column drives the LR block to pull open to both sides, making the mold easy to pick up and put down products and convenient to use. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the lower mold structure of this utility model;

[0021] Figure 3 This is a front view structural diagram of the present utility model;

[0022] Figure 4 This is a structural schematic diagram of the lithium battery cell and the sealing plastic parts at both ends of this utility model.

[0023] In the picture:

[0024] 1. Upper mold; 2. Lower mold; 4. Cold water pipe; 5. Lithium battery cell; 6. Sealing plastic parts; 201. Lower mold plate; 202. Middle plate; 203. Spacer plate; 204. Base plate; 205. Top plate; 206. Ejector pin; 101. Upper mold plate; 102. Feed block; 103. Feed port; 104. Inclined column; 105. Positioning wedge; 2011. Sliding pressure block; 2012. Inclined column insertion hole; 2013. Spring. Detailed Implementation

[0025] 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.

[0026] Please see Figures 1-4 As shown, this utility model provides a technical solution: a low-pressure injection mold for lithium battery sealing components, used for molding the sealing plastic parts 6 at both ends of the lithium battery cell 5. Since the lithium battery cell is injection molded in the mold, for safety reasons, excessive pressure and excessive temperature cannot be applied to it during operation. This utility model achieves this purpose by setting a low-pressure molding mold. The injection mold includes an upper mold 1, a lower mold 2 composed of a lower mold plate 201, an intermediate plate 202, a spacer plate 203 and a bottom plate 204. The upper mold 1 includes an upper mold plate 101. Two sets of feeding blocks 102 are installed inside the upper mold plate 101. Each feeding block 102 has two feeding ports 103. The plastic material enters from the feeding ports (8) on the feeding blocks (4), and finally forms injection molded parts at both ends of the battery cell product.

[0027] The lower template 201 in this application is provided with two sets of LR sliding blocks 2011 at its top. Each set of sliding blocks 2011 includes an L sliding block and an R sliding block. The sliding blocks 2011 are provided with inclined column insertion holes 2012. A spring 2013 is connected to one side of the sliding blocks 2011. The upper template 101 is also provided with inclined columns 104 corresponding to the inclined column insertion holes 2012. The inclined columns 104 are movably connected to the inclined column insertion holes 2012. In this application, positioning wedges 105 are also fixedly connected to the middle position and both sides of the upper template 101.

[0028] In this application, the upper template 101 and the lower template 201 are both provided with soft rubber on the upper and lower sides of the product placement position.

[0029] Please refer to the following carefully. Figure 2 and Figure 3A top plate 205 is provided in the gap of the partition plate 203. An ejector pin 206 is installed on the top of the top plate 205. The lower template 201 and the middle plate 202 have ejector pin holes for installing the ejector pin 206. The ejector pin 206 is movably installed inside the ejector pin hole. After injection molding is completed, the ejector plate moves upward (driving the ejector pin to push upward) to push the injection molded product out of the cavity for easy removal.

[0030] Please refer to the following carefully. Figure 2 The feed block 102 is equipped with a cold water pipe 4 to cool the plastic material and prevent the temperature rise from affecting the safety of the battery cell. The upper template 101 and the sliding pressure block 2011 are also equipped with cold water pipes 4 for cooling.

[0031] Working principle: Plastic material enters through the feed port on the feed block and eventually forms injection molded parts at both ends of the battery cell. After injection molding is completed, the ejector plate moves upward (driving the ejector pins to push upward) to eject the injection molded product from the cavity for easy removal. During mold closing, the inclined column drives the LR sliding block to press in the middle, and during mold opening, the inclined column drives the LR block to pull open to both sides, making the mold easy to put and take out products and convenient to use.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A low-pressure injection mold for sealing components of lithium batteries, used for molding sealing plastic parts (6) at both ends of a lithium battery cell (5), the injection mold comprising an upper mold (1), a lower mold plate (201), an intermediate plate (202), a spacer plate (203), and a bottom plate (204) forming a lower mold (2), characterized in that: The upper mold (1) includes an upper template (101), and two sets of feeding blocks (102) are installed inside the upper template (101). Each feeding block (102) has two feeding ports (103) inside. The top of the lower template (201) is also provided with two sets of LR sliding blocks (2011). The sliding blocks (2011) are provided with inclined column insertion holes (2012). A spring (2013) is connected to one side of the sliding blocks (2011). The other end of the spring (2013) is fixed to the lower template (201). The interior of the upper template (101) is also provided with inclined columns (104) corresponding to the inclined column insertion holes (2012). The inclined columns (104) are movably connected to the inclined column insertion holes (2012). Positioning wedges (105) are also fixedly connected to the middle position and both sides of the upper template (101).

2. The low-pressure injection mold for lithium battery seals according to claim 1, characterized in that: The upper template (101) and lower template (201) are both provided with soft rubber on the upper and lower sides corresponding to the product placement positions.

3. A low-pressure injection mold for lithium battery seals according to claim 1, characterized in that: A top plate (205) is provided in the gap of the partition plate (203), and a pin (206) is installed on the top of the top plate (205).

4. A low-pressure injection mold for lithium battery sealing components according to claim 1, characterized in that: The lower template (201) and the intermediate plate (202) are provided with ejector pin holes for installing ejector pins (206), and the ejector pins (206) are movably installed inside the ejector pin holes.

5. A low-pressure injection mold for lithium battery seals according to claim 1, characterized in that: The feed block (102) is equipped with a cold water pipe (4), and the upper template (101) and the sliding pressure block (2011) are also equipped with cold water pipes (4).

6. A low-pressure injection mold for lithium battery seals according to claim 1, characterized in that: Each set of sliding blocks (2011) includes an L sliding block and an R sliding block.

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