Die head splitting device

Abstract

The utility model discloses a die head splitting device, and belongs to the technical field of lithium battery diaphragms. The two ends of the die head to be split are detachably connected with the two mirror split supports respectively, and the distance between the two mirror split supports can be adaptively adjusted. The mirror splitting support comprises two sliding supports which are split and combined in a front-back sliding mode, the two sliding supports are respectively an outer sliding support and an inner sliding support which are split into a front half and a rear half corresponding to a die head to be split, the two sliding supports are respectively connected in respective sliding grooves in a sliding mode through respective supporting legs, and the two sliding grooves are parallel in a staggered mode; before splitting, the two ends of the die head to be split are fixedly connected through the two mirror splitting supports respectively, and after splitting, the front half die head and the rear half die head are slidably separated along with the corresponding outer sliding support and the corresponding inner sliding support. After a runner in the die head is cleaned and checked, the front half die head and the rear half die head slide along with the corresponding outer sliding support and the corresponding inner sliding support to be folded and connected into a whole. The technical problem that splitting equipment can only be matched with splitting of one die head is solved.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery separator processing technology, and more specifically to a die head splitting device. Background Technology

[0002] A lithium-ion battery is a rechargeable battery that primarily functions by the movement of lithium ions between the positive and negative electrodes. During charging and discharging, lithium ions repeatedly insert and extract between the two electrodes; during charging, lithium ions extract from the positive electrode, pass through the electrolyte, and insert into the negative electrode, leaving the negative electrode in a lithium-rich state; the reverse occurs during discharging. These batteries typically use lithium-containing materials as electrodes and are representative of modern high-performance batteries.

[0003] In the structure of lithium-ion batteries, the separator is one of the key internal components. For lithium battery series, since the electrolyte is an organic solvent system, a separator material resistant to organic solvents is required. Generally, a high-strength thin-film polyolefin porous membrane is used. The separator is usually processed by extrusion using an extrusion die. The die is a two-part assembly. After a period of use, the die needs to be disassembled to clean and inspect the internal flow channels.

[0004] Currently, when disassembling mold heads, one disassembly device is typically used for each mold head; if a brand has several mold heads of different lengths, several disassembly devices are required. Moreover, because mold heads are relatively bulky and have poor mobility, they cannot be easily disassembled on-site. Utility Model Content

[0005] 1. The technical problem to be solved by the utility model:

[0006] To address the aforementioned problems with existing lithium battery separator extrusion dies, this invention provides a die splitting device. The device first fixes both ends of the die to be split using two mirror-oriented splitting brackets. After splitting, the two mirror-oriented splitting brackets, which are slidably connected in their respective grooves, slide apart, thereby achieving the purpose of splitting extrusion dies of different specifications.

[0007] 2. Technical Solution:

[0008] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0009] A mold head splitting device includes two mirror-oriented splitting brackets that detachably connect the two ends of the mold head to be split. The spacing between the two mirror-oriented splitting brackets can be adjusted to accommodate mold heads of different lengths. Each mirror-oriented splitting bracket includes two sliding brackets that slide forward and backward, respectively serving as an outer sliding bracket and an inner sliding bracket to split the mold head into front and rear halves. The two sliding brackets are slidably connected in their respective grooves via their respective legs, and the two grooves are offset and parallel. Before splitting, the two mirror-oriented splitting brackets fix the two ends of the mold head to be split. After splitting, the front and rear halves of the mold head slide apart with the corresponding outer and inner sliding brackets. After cleaning and inspecting the internal flow channels of the mold head, the front and rear halves of the mold head slide together with the corresponding outer and inner sliding brackets, and then the two halves of the mold head are connected as one unit. Finally, the two mirror-oriented splitting brackets are removed.

[0010] A further technical solution is that the connecting surfaces of the outer sliding bracket and the inner sliding bracket facing the end face of the mold head to be separated are perforated with multiple fixing holes. After the two connecting surfaces are merged, they form the same splicing surface. The center of gravity of the two sliding brackets is above their respective sliding grooves, which avoids the two sliding brackets from being misaligned, especially the outer sliding bracket tilting inward.

[0011] A further technical solution involves symmetrical fixing holes for the outer and inner sliding brackets to match mold heads of different widths.

[0012] A further technical solution involves setting two stepped surfaces, one inner and one outer, at the bottom of the legs of the outer sliding bracket. These surfaces are slidably connected to the inner and outer edges of the sliding groove, respectively, to prevent tilting and improve the stability of the outer sliding bracket.

[0013] A further technical solution involves setting vertical weight-reduction holes on the side of the outer sliding bracket near the connecting surface. While reducing weight, more importantly, this achieves the goal of shifting the center of gravity outward to directly above the sliding groove.

[0014] Further technical solutions include a trolley, two horizontal linear guides, and two pairs of vertical linear guides. The two horizontal linear guides are connected to the trolley's frame surface. The two pairs of vertical linear guides are connected to the two horizontal linear guides by sliders connected to their respective bottoms, sliding left and right. The slides are connected to the corresponding vertical linear guides by sliders connected to their respective bottoms, sliding forward and backward. This improves the mobility of the entire device and also enhances the adjustment accuracy and guidance when adjusting the length and width of the sliding adapter head before disassembly.

[0015] 3. Beneficial effects:

[0016] Compared with the prior art, the technical solution provided by this utility model has the following advantages:

[0017] The mold head disassembly device of this utility model is compatible with mold heads of multiple brands, specifications and lengths. Moreover, it is highly mobile and can be disassembled accurately and conveniently on site. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the mold head splitting device in a specific embodiment;

[0019] Figure 2 for Figure 1 A schematic diagram of the side view structure;

[0020] Figure 3 for Figure 1 Front view structural diagram;

[0021] Figure 4 This is a top view of the mold head to be disassembled before disassembly, according to a specific embodiment.

[0022] Figure 5 This is a schematic diagram of the mold head splitting device in a specific embodiment;

[0023] Figure 6 for Figure 1 A top-down structural diagram;

[0024] Figure 7 This is a rendering of the mold head to be disassembled before disassembly, according to a specific embodiment.

[0025] Figure 8 This is a schematic diagram showing the state of the mold head after it has been disassembled, according to a specific embodiment.

[0026] In the diagram: 1. Mirror-oriented splitting bracket; 2. Slide groove; 3. Slider; 4. Horizontal linear guide rail; 5. Cart; 6. Vertical linear guide rail; 7. Limiting block; 10. Die to be split; 11. Outer sliding bracket; 12. Inner sliding bracket; 13. Fixing hole; 14. Weight reduction hole; 15. Support leg; 20. Splicing surface; 151. Step surface. Detailed Implementation

[0027] To further understand the contents of this utility model, a detailed description of the utility model is provided in conjunction with the accompanying drawings.

[0028] Example 1

[0029] The mold head splitting device in this embodiment, such as Figure 1 , 2As shown in Figure 3, the device includes two mirror-oriented splitting brackets 1 that are detached and connected to the two ends of the mold head 10 to be split. The distance between the two mirror-oriented splitting brackets 1 can be adjusted according to the mold head of different lengths. Each mirror-oriented splitting bracket 1 includes two sliding brackets that slide forward and backward, namely an outer sliding bracket 11 and an inner sliding bracket 12 corresponding to the front and rear halves of the mold head 10 to be split. The two sliding brackets are slidably connected in their respective slide grooves 2 through their respective legs 15. The two slide grooves 2 are misaligned and parallel.

[0030] In this embodiment, the die head splitting device, before the die head is split, such as Figure 4 As shown, two mirror-oriented splitting brackets 1 fix the two ends of the mold head 10 to be split respectively. After splitting, the front and rear halves of the mold head slide apart with the corresponding pair of outer sliding brackets 11 and inner sliding brackets 12. After splitting, a pair of support legs 15 support the front and rear halves of the mold head respectively. The two support legs 15 on each side are staggered and remain stable after splitting. After cleaning and inspecting the internal flow channel of the mold head, the front and rear halves of the mold head slide together with the corresponding outer sliding brackets 11 and inner sliding brackets 12. Then the two halves of the mold head are connected as one. Finally, the two mirror-oriented splitting brackets 1 are removed.

[0031] The outer sliding bracket 11 and the inner sliding bracket 12 each have multiple fixing holes 13 perforated on their respective connecting surfaces facing the end face of the mold head 10 to be split. After the two connecting surfaces are combined, they form the same splicing surface 20. The multiple fixing holes 13 are symmetrical in front and back to match mold heads of different widths. In order to avoid misalignment of the two sliding brackets, especially the outer sliding bracket 11 tilting inward, the center of gravity of the two sliding brackets is above their respective slide grooves 2.

[0032] The bottom of the legs 15 of the outer sliding bracket 11 is provided with two stepped surfaces 151, one inner and one outer, which are slidably connected to the inner and outer groove edges of the slide groove 2, respectively. This further prevents tilting and improves the stability of the outer sliding bracket 11. Vertical weight-reducing holes 14 are provided on the side of the outer sliding bracket 11 near the connecting surface. While reducing weight, more importantly, this also shifts the center of gravity outward to directly above the slide groove 2, thereby improving its stability.

[0033] Example 2

[0034] The die head splitting device in this embodiment has the same basic structure as in embodiment 1, but differs or is improved in that: Figure 5 , 6 As shown in Figures 7 and 8, it also includes a trolley 5, two horizontal linear guide rails 4 and two pairs of vertical linear guide rails 6. The trolley 5 is equipped with four universal brake wheels at the bottom and handrails on the sides, making it suitable for manual transfer and movement in various areas.

[0035] Both horizontal linear guides 4 are connected to the frame surface of the trolley 5; both pairs of vertical linear guides 6 are slidably connected to the two horizontal linear guides 4 via sliders 3 connected to their respective bottoms, moving left and right; the slides 2 are slidably connected to the corresponding vertical linear guides 6 via sliders 3 connected to their respective bottoms, moving forward and backward. This improves the mobility of the entire device and also enhances the adjustment accuracy and guidance when adjusting the length and width of the mold head. Limit blocks 7 are fixedly connected to the ends of each linear guide to prevent the sliders 3 from sliding out of position.

[0036] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention. The actual structure and manufacturing steps are not limited to these. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A mold head splitting device, characterized in that: It includes two mirror-oriented splitting brackets (1) that detach and connect the two ends of the mold head (10) to be split; the mirror-oriented splitting bracket (1) includes two sliding brackets that slide and separate in front and back, namely an outer sliding bracket (11) and an inner sliding bracket (12) that split the mold head (10) to be split into front and back halves respectively. The two sliding brackets are slidably connected in their respective slide grooves (2) through their respective legs (15), and the two slide grooves (2) are misaligned and parallel.

2. The die head splitting device according to claim 1, characterized in that: The outer sliding bracket (11) and the inner sliding bracket (12) have multiple fixing holes (13) on their respective connecting surfaces facing the end face of the mold head (10) to be split. After the two connecting surfaces are combined, they form the same splicing surface (20). The center of gravity of the two sliding brackets is above their respective sliding grooves (2).

3. The die head splitting device according to claim 2, characterized in that: The fixing holes of the outer sliding bracket (11) and the inner sliding bracket (12) are symmetrical in front and back.

4. The die head splitting device according to claim 2, characterized in that: The bottom of the legs (15) of the outer sliding bracket (11) is provided with two stepped surfaces (151) on the inside and outside, respectively, which are slidably connected to the inner and outer groove edges of the slide groove (2).

5. The die head splitting device according to claim 2, characterized in that: The outer sliding bracket (11) has a vertical weight-reducing hole (14) on its side near the connecting surface.

6. The die head splitting device according to any one of claims 1-5, characterized in that: It also includes a trolley (5), two horizontal linear guides (4) and two pairs of vertical linear guides (6). The two horizontal linear guides (4) are connected to the frame surface of the trolley (5). The two pairs of vertical linear guides (6) are connected to the two horizontal linear guides (4) by sliders (3) connected to their respective bottoms, sliding left and right. The slides (2) are connected to the corresponding vertical linear guides (6) by sliders (3) connected to their respective bottoms, sliding forward and backward.

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