CN206789566U - A kind of lithium ion battery Soft Roll rushes shell mould - Google Patents

Abstract

It the utility model is related to a kind of lithium ion battery Soft Roll and rush shell mould, including：Cope plate, lower template, cope plate is provided with mold and punching head, mold and punching head base, die springs, limit for height screw and pin, positioning and guiding mould is provided between cope plate and lower template, guiding module is provided with two and lower template cavity dimension identical pilot hole, the upper surface of described mold and punching head is provided with guide pad, and guide pad is fixedly connected by mold and punching head base with cope plate；Four sides of described guide pad are respectively equipped with vertical air discharge duct；Two professional etiquette lattice identical die springs, the diameter for being smaller than spring of adjacent die springs are set respectively on the front side of described mold and punching head and the cope plate of rear side.The utility model is due to provided with positioning and guiding mould, aluminum plastic film can be made to be stretched when being molded more uniform, lift aluminum plastic film final product quality, and can significantly save debug time when remodeling, the required plastic-aluminum film raw material scrapped when reducing commissioning device, so as to save cost.

Description

A lithium-ion battery soft package punching mold

technical field

The utility model relates to a lithium ion battery production mold, in particular to a lithium ion battery soft package punching mold.

Background technique

At present, in the production process of polymer lithium-ion batteries, if the pit depth of the aluminum-plastic film is too large (≥3.9mm), there will be a hidden danger of excessive stretching at the R corner after the aluminum-plastic film is formed, resulting in residual aluminum layer at the corner If the mold spring is too small, the upper and lower templates will have uneven pressure on the aluminum-plastic film in the process of stamping the aluminum-plastic film, which will cause problems such as wrinkling of the aluminum-plastic film and affecting the appearance of the battery. Therefore, it is necessary to ensure that the upper and lower templates can be pressed accurately and evenly. Tighten the aluminum-plastic film so that the four sides can be stretched evenly when punching the hole. At present, it is difficult to meet the requirements due to insufficient stamping precision of the mold.

Contents of the invention

The purpose of this utility model is to provide a kind of lithium-ion battery soft package punching mold for the above problems.

The technical solution adopted by the utility model is: a lithium-ion battery soft pack punching mold, including: an upper template, a lower template, and the upper template is provided with a mold punch, a mold punch base, a mold spring, height-limiting screws and Pins, a positioning guide mold is provided between the upper template and the lower template, and two guide holes with the same size as the mold cavity of the lower template are provided on the guide mold, and the position of the guide holes corresponds to the cavity position of the lower mold up and down; the mold The upper end surface of the punch is provided with a guide block, which is fixedly connected with the upper template through the punch base, and the guide block is inserted into the guide hole of the guide die from top to bottom to move up and down during the stamping work; the four guide blocks described above Vertical exhaust grooves are respectively arranged on the sides; two rows of die springs of the same specification are respectively arranged on the front and rear upper templates of the die punch, and the distance between adjacent die springs is smaller than the diameter of the springs.

The die punch is a Teflon punch.

At least two exhaust grooves are arranged on each side of the exhaust grooves of the guide mold.

Beneficial effects of the utility model: due to the positioning guide mold, the stretching of the aluminum-plastic film can be made more uniform during forming, the quality of the finished product of the aluminum-plastic film can be improved, and the debugging time when changing the model can be greatly saved, and the time for debugging the equipment can be reduced. The aluminum-plastic film raw materials that need to be scrapped, thereby saving costs.

Description of drawings

Fig. 1 is a three-dimensional schematic diagram showing the upper and lower molds separately in one embodiment of the present invention.

Fig. 2 is a schematic diagram of removing the mold spring, height-limiting screw and pin from the upper formwork.

Figure 3 is a schematic diagram of a die punch.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

As shown in Figures 1 to 3, the utility model includes: an upper template 1, a lower template 3, and the upper template 1 is provided with a die punch 11, a die punch base 12, a die spring 13, height-limiting screws 14 and pins 15 , a positioning guide mold 2 is provided between the upper template 1 and the lower template 3, and the guide mold is provided with two guide holes 21 having the same size as the mold cavity, and the position of the guide holes corresponds to the position of the mold cavity 31 of the lower template; The upper end surface of the die punch is provided with a guide block 111, and the guide block is fixedly connected with the upper template through the die punch base. The mold punch and the inner wall of the guide hole are precisely positioned, and the mold punch plays a guiding role, so that the gap between the mold punch and the two sides of the cavity can be maintained with higher precision, and the four sides can be drawn more evenly during the aluminum-plastic film forming process. Stretch, improve the quality of finished aluminum-plastic film. Two vertical exhaust grooves 1111 are respectively provided on the four sides of the guide block; as shown in FIG. , the distance between adjacent mold springs is smaller than the diameter of the springs, and the two rows of springs make the force on each position of the aluminum-plastic film more uniform when the mold is stamped. The material of the die punch is Teflon, that is, polytetrafluoroethylene. The Teflon punch and the guide hole are precisely matched, and the guide hole acts as a guide to keep the gap between the mold punch and the two sides of the cavity consistent, and the mold punch and the guide hole wall ensure smoothness to reduce the Teflon punch during stamping. The friction between the inner wall and the inner wall, thus achieving the effect of prolonging the life of the Teflon punch.

During work, the last template pin passes through the pin hole 22 of the positioning guide mold and the pin hole 32 of the lower template,

The aluminum-plastic film is evenly pressed between the pin holes of the guide die and the pin holes of the lower template, and the upper template is pressed down through the cylinder, and the Teflon punch punches the aluminum-plastic film. The height-limiting screw is connected between the upper template 1 and the guide mold 2. Using the height-limiting screw can keep the two templates parallel in the non-working state, and the force of each spring is equal to prolong the life of the spring.

Claims (3)

1. A lithium-ion battery soft pack punching mold, including: an upper template (1), a lower template (3), and a mold punch (11), a mold punch base (12), and a mold spring ( 13), the height-limiting screw (14) and the pin (15), are characterized in that: there is a positioning guide mold (2) between the upper template (1) and the lower template (3), and there are two guide molds and the lower mold The guide hole (21) with the same size as the mold cavity of the template, the position of the guide hole corresponds to the position of the cavity (31) of the lower mold up and down; the upper end surface of the die punch is provided with a guide block, and the guide block passes through the base of the die punch and The upper template is fixedly connected, and the guide block is inserted into the guide hole (21) of the guide die from top to bottom to move up and down during the stamping work; the four sides of the guide block are respectively provided with vertical exhaust grooves; Two rows of die springs (13) of the same specification are arranged on the front and rear upper templates of the die punch, and the distance between adjacent die springs is smaller than the diameter of the springs. 2. A lithium-ion battery soft case punching die according to claim 1, characterized in that: said die punch is a Teflon punch. 3. A lithium-ion battery soft case punching mold according to claim 1, wherein at least two exhaust grooves are provided on each side of the air exhaust grooves of the guide die.