CN215283124U

CN215283124U - Lithium battery shell injection mold

Info

Publication number: CN215283124U
Application number: CN202121400860.6U
Authority: CN
Inventors: 苟堂仁
Original assignee: Shenzhen Jjy Technology Co ltd
Current assignee: Shenzhen Jjy Technology Co ltd
Priority date: 2021-06-23
Filing date: 2021-06-23
Publication date: 2021-12-24
Anticipated expiration: 2031-06-23

Abstract

The utility model relates to a lithium cell technical field specifically is a lithium battery shell injection mold, including the mounting bracket, be provided with the feed bin on the mounting bracket, the fixed pipe of moulding plastics that is provided with in bottom of feed bin, the bottom cover of the pipe of moulding plastics is equipped with injection mold, injection mold includes left mould and right mould, left side mould and right mould carry out sharp opposite direction motion by the drive arrangement drive and along the mounting bracket, left side mould and right mould are mirror symmetry about the pipe of moulding plastics, the pipe one end fixed mounting that moulds plastics is in the bottom of feed bin, the pipe other end of moulding plastics runs through the roof of mounting bracket and stretches into between left mould and the right mould. The screw rod nuts of the first screw rod pair and the second screw rod pair move horizontally in opposite directions, so that the left mold and the right mold are driven to mutually clamp or loosen the injection molding pipe, the effect of convenient disassembly or assembly of the left mold and the right mold is realized, and convenience is greatly improved.

Description

Lithium battery shell injection mold

Technical Field

The utility model relates to a lithium cell technical field specifically is a lithium cell casing injection mold.

Background

A lithium battery is a type of battery using a nonaqueous electrolyte solution, using lithium metal or a lithium alloy as a positive/negative electrode material. Because the chemical characteristics of lithium metal are very active, the requirements on the environment for processing, storing and using the lithium metal are very high. With the development of scientific technology, lithium batteries have become the mainstream. The lithium battery can be used after leaving a factory only by fixing a shell on the outer side of the lithium battery in the generating process.

The lithium battery shell injection mold is used for injection molding in the manufacturing process of a lithium battery shell, generally comprises a shell mold with an injection molding opening, generally comprises an upper mold and a right mold, and needs to be injected with a work material through the injection molding opening when the mold is used, so that the work material enters the interior of the mold, the mold is disassembled to realize the disassembly between the upper mold and the right mold through the disassembly after the mold is cooled, and then the injection molding purpose is achieved, but in the disassembly process, the upper mold and the right mold can be tightly attached due to the influence of temperature, so that the disassembly is difficult, and the working efficiency is influenced.

In view of this, we propose a lithium battery case injection mold.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a lithium battery shell injection mold to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a lithium battery shell injection mold, includes the mounting bracket, be provided with the feed bin on the mounting bracket, the fixed pipe of moulding plastics that is provided with in bottom of feed bin, the bottom cover of moulding plastics the pipe is equipped with injection mold, injection mold includes left mould and right mould, left side mould and right mould carry out straight line opposite direction motion by the drive arrangement drive and along the mounting bracket, and left mould and right mould are mirror symmetry about moulding plastics the pipe, and the pipe one end fixed mounting that moulds plastics runs through the roof of mounting bracket and stretches into between left mould and the right mould, the pipe other end of moulding plastics.

Preferably, a long cavity is formed in the right side wall of the mounting frame, a driving device is arranged in the long cavity, the driving device comprises a first lead screw pair, a second lead screw pair, a rotating wheel and a fixed cylinder, a lead screw of the first lead screw pair and a lead screw of the second lead screw pair are coaxially welded, and the thread directions of the lead screw of the first lead screw pair and the lead screw of the second lead screw pair are opposite.

Preferably, the fixed cylinder is fixedly arranged on the side wall of the mounting frame, one end, far away from the first screw rod pair, of the screw rod of the second screw rod pair penetrates through the fixed cylinder and the fixed connection runner, an internal thread hole is formed in the upper end of the fixed cylinder, a positioning bolt is screwed in the internal thread hole, and the lower end of the positioning bolt abuts against the outer wall of the screw rod of the second screw rod pair.

Preferably, the equal fixed connection guide block of left mould and right mould one end, the screw nut of the first lead screw pair of left mould other end fixed connection, the screw nut of the second lead screw pair of right mould other end fixed connection have seted up the spacing groove on the left side wall of mounting bracket, guide block and spacing groove sliding fit.

Preferably, the top of one side, close to each other, of the left mold and the right mold is provided with a semicircular through hole, the inner wall surface of the semicircular through hole is provided with a clamping ring in a protruding mode, the injection molding pipe extends into the space between the two semicircular through holes, the outer wall of the injection molding pipe is provided with an annular clamping groove, and the clamping ring is inserted into the clamping groove.

Preferably, one side of the left die, which is close to the right die, is provided with a rectangular annular groove, the side wall of the right die is convexly provided with a convex edge, and the convex edge is inserted in the groove.

Preferably, four universal balls are distributed on the upper end surfaces of the left die and the right die in a matrix mode, two groups of sliding grooves are formed in the inner top wall of the mounting frame, and the universal balls are in rolling fit with the sliding grooves.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the universal ball is used as a support of the left die and the right die to be in contact with the inner top wall of the mounting frame, the contact area is small, and the friction resistance is small, so that the transmission wear of the first ball screw pair and the second ball screw pair is reduced, the service life of the driving device is prolonged, and the attaching effect of the left die and the right die is ensured; the left die and the right die are connected more tightly by arranging the convex edge to be in inserting fit with the rectangular annular groove;

2. the utility model discloses a screw-nut that first lead screw is vice and second lead screw carries out the horizontally motion in opposite directions to it presss from both sides tightly each other or relaxs the pipe of moulding plastics to drive left mould and right mould, realizes the effect of conveniently dismantling or installing left mould and right mould with this, improves the convenience greatly.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an exploded view of the structure of the present invention;

fig. 3 is an explosion diagram of the injection mold of the present invention.

In the figure: the device comprises an installation frame 1, a bin 2, an injection molding pipe 3, a clamping groove 301, a left mold 4, a right mold 5, a first lead screw pair 6, a second lead screw pair 7, a rotating wheel 8, a fixed cylinder 9, a positioning bolt 10, a universal ball 11, a clamping ring 12, a convex edge 13 and a guide block 14.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 3, the present invention provides a technical solution: an injection mold for a lithium battery shell comprises a mounting frame 1, wherein a bin 2 is arranged on the mounting frame 1, an injection molding pipe 3 is fixedly arranged at the bottom of the bin 2, the bottom of the injection molding pipe 3 is sleeved with the injection mold, the injection mold comprises a left mold 4 and a right mold 5, the left mold 4 and the right mold 5 are driven by a driving device and linearly and oppositely move along the mounting frame 1, the left mold 4 and the right mold 5 are in mirror symmetry about the injection molding pipe 3, one end of the injection molding pipe 3 is fixedly arranged at the bottom of the bin 2, and the other end of the injection molding pipe 3 penetrates through the top wall of the mounting frame 1 and extends into a space between the left mold 4 and the right mold 5; the top of one side that left mould 4 and right mould 5 are close to each other has all seted up semi-circular through-hole, and the internal face of semi-circular through-hole is provided with snap ring 12 by the salient, and the pipe 3 of moulding plastics stretches into between two semi-circular through-holes, and has seted up ring groove 301 on the outer wall of the pipe 3 of moulding plastics, and snap ring 12 inserts and establishes in draw-in groove 301. Through setting up snap ring 12 and draw-in groove 301 cooperation of pegging graft, can make left mould 4 and right mould 5 inseparabler with the laminating of moulding plastics pipe 3 for the material in the pipe 3 of moulding plastics can enter into the mould accurately without mistake.

As shown in fig. 1 and 2, a long cavity is formed in the right side wall of the mounting bracket 1, a driving device is arranged in the long cavity, the driving device comprises a first lead screw pair 6, a second lead screw pair 7, a rotating wheel 8 and a fixed cylinder 9, a lead screw of the first lead screw pair 6 and a lead screw of the second lead screw pair 7 are coaxially welded, and the lead screw of the first lead screw pair 6 and the lead screw of the second lead screw pair 7 are opposite in thread direction. The fixed setting of solid fixed cylinder 9 is on the lateral wall of mounting bracket 1, the one end that first lead screw pair 6 was kept away from to the lead screw of second lead screw pair 7 runs through solid fixed cylinder 9 and fixed connection runner 8, during the use, through stirring the first lead screw pair 6 of runner 8 drive and second lead screw pair 7 and move, because the lead screw of first lead screw pair 6 is opposite with the lead screw thread direction of second lead screw pair 7, the screw-nut of first lead screw pair 6 and the screw-nut of second lead screw pair 7 carry out the horizontally motion in opposite directions, thereby it presss from both sides tight or relaxs injection molding pipe 3 to drive left mould 4 and right mould 5 each other.

As shown in fig. 1 and 2, an internal threaded hole is formed in the upper end of the fixed cylinder 9, a positioning bolt 10 is screwed into the internal threaded hole, and the lower end of the positioning bolt 10 abuts against the outer wall of the lead screw of the second lead screw pair 7. Through setting up positioning bolt 10 and acting on the lead screw of second lead screw pair 7, can play the effect of locking to second lead screw pair 7 for left mould 4 and right mould 5 can be stably laminated in the outside of moulding plastics pipe 3, avoid taking place the condition such as weeping and take place, guarantee the off-the-shelf quality of mould.

As shown in fig. 1 to 3, one end of each of the left mold 4 and the right mold 5 is fixedly connected with a guide block 14, the other end of the left mold 4 is fixedly connected with a lead screw nut of the first lead screw pair 6, the other end of the right mold 5 is fixedly connected with a lead screw nut of the second lead screw pair 7, a limit groove is formed in the left side wall of the mounting frame 1, and the guide blocks 14 are in sliding fit with the limit groove. The rectangular annular groove is formed in one side, close to the right die 5, of the left die 4, the convex edge 13 is arranged on the side wall of the right die 5 in a protruding mode, and the convex edge 13 is inserted into the groove in an inserting mode. Through setting up protruding edge 13 and the cooperation of pegging graft of rectangle annular groove for left mould 4 and right mould 5 are connected inseparabler.

As shown in fig. 2 and 3, four universal balls 11 are distributed on the upper end surfaces of the left mold 4 and the right mold 5 in a matrix manner, two groups of sliding grooves are formed in the inner top wall of the mounting frame 1, and the universal balls 11 are in rolling fit with the sliding grooves. The universal ball 11 contacts with the inner top wall of the mounting rack 1 as the support of the left mold 4 and the right mold 5, the contact area is small, and the friction resistance is small, so that the transmission abrasion of the first ball screw pair 12 and the second ball screw pair 13 is reduced, the service life of the driving device is prolonged, and the laminating effect of the left mold 4 and the right mold 5 is ensured.

The working principle is as follows: in the in-service use, through stirring the runner 8 and driving first lead screw pair 6 and the vice 7 motion of second lead screw, because the lead screw of first lead screw pair 6 is opposite with the lead screw thread direction of the vice 7 of second lead screw, the screw-nut of first lead screw pair 6 and the screw-nut of the vice 7 of second lead screw carry out the horizontally motion in opposite directions to drive left mould 4 and right mould 5 and press from both sides tight each other or relax injection molding pipe 3, with this effect of realizing conveniently dismantling or installing left mould 4 and right mould 5, improve the convenience greatly. The universal ball 11 is used as a support of the left mold 4 and the right mold 5 to be in contact with the inner top wall of the mounting frame 1, so that the contact area is small, and the friction resistance is small, so that the transmission wear of the first ball screw pair 12 and the second ball screw pair 13 is reduced, the service life of the driving device is prolonged, and the attaching effect of the left mold 4 and the right mold 5 is ensured; and the convex edge 13 is arranged to be matched with the rectangular annular groove in an inserting mode, so that the left die 4 and the right die 5 are connected more tightly.

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

Claims

1. The utility model provides a lithium battery shell injection mold, includes mounting bracket (1), be provided with feed bin (2) on mounting bracket (1), the fixed pipe (3) of moulding plastics that are provided with in bottom of feed bin (2), the bottom cover of the pipe (3) of moulding plastics is equipped with injection mold, its characterized in that: injection mold includes left mould (4) and right mould (5), straight line relative motion is carried out by drive arrangement drive and along mounting bracket (1) in left mould (4) and right mould (5), and left mould (4) and right mould (5) are mirror symmetry about moulding plastics pipe (3), and the bottom at feed bin (2) is moulded plastics pipe (3) one end fixed mounting, and the roof of mounting bracket (1) is run through and stretch into between left mould (4) and right mould (5) to the pipe (3) other end of moulding plastics.

2. The lithium battery case injection mold of claim 1, wherein: the right side wall of the mounting rack (1) is provided with a long cavity, a driving device is arranged in the long cavity, the driving device comprises a first lead screw pair (6), a second lead screw pair (7), a rotating wheel (8) and a fixed cylinder (9), a lead screw of the first lead screw pair (6) and a lead screw of the second lead screw pair (7) are coaxially welded, and the lead screw of the first lead screw pair (6) is opposite to the lead screw thread direction of the second lead screw pair (7).

3. The lithium battery case injection mold according to claim 2, wherein: the fixed setting of solid fixed cylinder (9) is on the lateral wall of mounting bracket (1), and the one end that first lead screw pair (6) was kept away from to the lead screw of second lead screw pair (7) runs through solid fixed cylinder (9) and fixed connection runner (8), and internal thread hole has been seted up to solid fixed cylinder (9) upper end, and the internal thread hole has connect positioning bolt (10) soon, and positioning bolt (10) lower extreme is contradicted in the lead screw outer wall of second lead screw pair (7).

4. The lithium battery case injection mold according to claim 2, wherein: the guide block is fixedly connected with one end of the left die (4) and one end of the right die (5), a lead screw nut of the first lead screw pair (6) is fixedly connected with the other end of the left die (4), a lead screw nut of the second lead screw pair (7) is fixedly connected with the other end of the right die (5), a limiting groove is formed in the left side wall of the mounting frame (1), and the guide block (14) is in sliding fit with the limiting groove.

5. The lithium battery case injection mold according to claim 4, wherein: the mould is characterized in that semicircular through holes are formed in the top of one side, close to each other, of the left mould (4) and the right mould (5), snap rings (12) are arranged on the inner wall surfaces of the semicircular through holes in a protruding mode, the injection molding pipe (3) stretches into the space between the two semicircular through holes, annular clamping grooves (301) are formed in the outer wall of the injection molding pipe (3), and the snap rings (12) are inserted into the clamping grooves (301).

6. The lithium battery case injection mold according to claim 5, wherein: a rectangular annular groove is formed in one side, close to the right die (5), of the left die (4), a convex edge (13) is arranged on the side wall of the right die (5) in a protruding mode, and the convex edge (13) is inserted into the groove in an inserting mode.

7. The lithium battery case injection mold of claim 6, wherein: four universal balls (11) are distributed on the upper end surfaces of the left die (4) and the right die (5) in a matrix mode, two groups of sliding grooves are formed in the inner top wall of the mounting frame (1), and the universal balls (11) are matched with the sliding grooves in a rolling mode.