CN210754411U

CN210754411U - Battery case extrusion die

Info

Publication number: CN210754411U
Application number: CN201921090163.8U
Authority: CN
Inventors: 徐均民; 辜怀君
Original assignee: Foshan Qinglv Automobile Components Technology Co ltd
Current assignee: Foshan Qinglv Automobile Components Technology Co ltd
Priority date: 2019-07-11
Filing date: 2019-07-11
Publication date: 2020-06-16
Anticipated expiration: 2029-07-11

Abstract

The utility model provides a battery shell extrusion die, which consists of an upper die and a lower die, wherein the upper die and the lower die are clamped and provided with a fixing piece for communicating the upper die and the lower die; the upper die is provided with shunting holes, shunting bridges arranged among the shunting holes, a die core connected with the shunting bridges, and a working belt arranged on the die core; the four sides of the die core are provided with material guide channels; the working belt is provided with a forming part corresponding to the material guide channel, and the shape of the forming part corresponds to the shape of a component inside the battery shell; the lower die is provided with a primary welding chamber and a die cavity and a die hole corresponding to the die core; and a secondary welding chamber is formed at the combination position of the lower die and the upper die, and the shape of the cavity corresponds to the shape of the outer contour of the battery shell. The utility model discloses make the melt seam abundant, and melt ejection of compact shaping high quality.

Description

Battery case extrusion die

Technical Field

The utility model relates to an extrusion die technical field, in particular to battery case extrusion die.

Background

Extrusion molding is one of the main production modes of the current industrial production and is mainly used for manufacturing hollow products. The principle is to make the liquid metal re-weld and flow out from the gap formed by the die hole and the needle under the conditions of high temperature, high pressure and high vacuum to form the hollow product with the required shape and size.

At present, the battery shell production mold in the prior art has the phenomena of insufficient fusion welding, welding seams of produced products, deviation of shapes and the like.

Disclosure of Invention

In order to solve the problems, the purpose is to provide a battery shell extrusion die, and the product quality is improved.

The utility model provides a battery case extrusion die, comprises last mould and lower mould, go up mould and lower mould block, be equipped with the mounting intercommunication go up the mould with the lower mould, its characterized in that:

the upper die is provided with shunting holes, shunting bridges arranged among the shunting holes, a die core connected with the shunting bridges, and a working belt arranged on the die core; the four sides of the die core are provided with material guide channels; the working belt is provided with a forming part corresponding to the material guide channel, and the shape of the forming part corresponds to the shape of a component inside the battery shell;

the lower die is provided with a primary welding chamber and a die cavity and a die hole corresponding to the die core; and a secondary welding chamber is formed at the combination position of the lower die and the upper die, and the shape of the cavity corresponds to the shape of the outer contour of the battery shell.

Preferably, the shunting holes are provided with inclined planes, and the shunting holes are enlarged from the upper part to the lower part.

Preferably, the upper die is further provided with a first clamping portion, and the lower die is provided with a second clamping portion corresponding to the first clamping portion.

Preferably, the fixing member penetrates the lower mold and is inserted into the upper mold.

Preferably, the mould core is provided with an arc-shaped band.

Preferably, the area of the secondary welding chamber is larger than that of the primary welding chamber.

The utility model provides a pair of battery case extrusion die, with the prior art contrast, the melt is in the in-process abundant seam of second grade seam room inflow one-level seam room to be provided with guide channel water conservancy diversion melt, the melt of being convenient for forms the inside tiny part of product, improves product quality.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a cross-sectional view of a battery case extrusion die;

FIG. 2 is a schematic view of the overall structure of the upper mold;

FIG. 3 is a front view of a battery housing;

wherein, the reference numbers:

reference numerals	Name (R)	Reference numerals	Name (R)
				10	Upper die	151	Forming section
101	A first engaging part	16	First-level welding chamber
				11	Lower die	17	Two-stage welding chamber
111	Second engaging part	18	Die cavity
				12	Flow dividing hole	19	Die hole
13	Shunting bridge	20	Inclined plane
				14	Mold core	21	Arc belt
141	Material guide channel	30	Battery case
				15	Working tape	31	Component part

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 efforts belong to the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The utility model provides a battery case extrusion die, comprises last mould 10 and lower mould 11, go up

mould

10 and 11 blocks of lower mould, be equipped with the mounting intercommunication go up mould 10 with lower mould 11, its characterized in that:

the upper die 10 is provided with shunting holes 12, shunting bridges 13 arranged between the shunting holes 12, a die core 14 connected with the shunting bridges 13, and a working belt 15 arranged on the die core 14; the four sides of the die core 14 are provided with material guide channels 141; the working belt 15 is provided with a forming part 151 corresponding to the material guide passage 141, and the shape of the forming part 151 corresponds to the shape of the inner part 31 of the battery shell 30;

the lower die 11 is provided with a primary welding chamber 16, and the lower die 11 is provided with a cavity 18 and a die hole 19 corresponding to the die core 14; a secondary welding chamber 17 is formed at the combination of the lower die 11 and the upper die 10, and the shape of the cavity 18 corresponds to the outer contour shape of the battery shell 30.

The upper die 10 and the lower die 11 are tightly attached. The diffluence hole 12 and the diffluence bridge 13 are arranged at intervals, and the diffluence hole 12 and the diffluence bridge 13 are all around the mold core 14. The shunt bridge 13 with mold core 14 integrated into one piece, mold core 14 is square column body, and its four side shape structures are all the same, and single side corresponds with singly shunt hole 12's position. The mold core 14 protrudes from the lower surface of the upper mold 10 and extends into the primary welding chamber 16, the mold cavity 18 and the mold hole 19. The working belt 15 is arranged at the lower end of the mold core 14 and is positioned at the same horizontal position with the mold cavity 18. The second-stage welding chamber 17 is in contact communication with the first-stage welding chamber 16, a plurality of material guide channels 141 are arranged on a single side surface of the mold core 14, a single material guide channel 141 corresponds to a single forming part 151, and the forming part 151 is located in the material guide channels 141. The material flow is branched by the branch bridge 13, enters the upper die 10 from the branch hole 12, and reaches the secondary welding chamber 17 and the primary welding chamber 16. The streams in each of the diverter holes 12 are initially merged in the secondary welding chamber 17 and are merged again in the primary welding chamber 16 to form an integral blank centered on the core 14. The material guiding channel 141 is recessed in the mold core 14, and the material flows into the material guiding channel 141 in the process of entering the diversion hole 12, and reaches the molding part 151 and the mold cavity 18 along the material guiding channel 141. The high-temperature and high-pressure material flow in the first-stage welding chamber 16 and the second-stage welding chamber 17 is finally extruded out of the forming part 151 and the cavity 18, and the die hole 19 avoids the formed section touching the lower die 11 to cause damage. The molding section 151 is a notch having a shape corresponding to the shape of the component 31 inside the molded profile.

Further, the diversion holes 12 are provided with inclined planes 20, and the diversion holes 12 are enlarged from the upper part to the lower part. The inclined plane 20 is arranged to make the diversion hole 12 be conical, the mold core 14 serves as one surface of the diversion hole 12, the other three surfaces of the diversion hole 12 are all inclined, the diversion hole 12 is gradually enlarged from the upper part to the lower part, and the inflow speed of material flow is balanced. Therefore, the internal space of the upper die 10 is enlarged, and the extrusion force of material flow received by the upper die 10 is reduced.

Further, the upper mold 10 is further provided with a first engaging portion 101, and the lower mold 11 is provided with a second engaging portion 111 corresponding to the first engaging portion 101. The first engaging portion 101 protrudes from the lower surface of the lower mold 11, the second engaging portion 111 protrudes from the upper surface of the lower mold 11, and the first engaging portion 101 and the second engaging portion 111 are engaged with each other to prevent the upper mold 10 and the lower mold 11 from being displaced relative to each other.

Further, the fixing member penetrates the lower mold 11 and is inserted into the upper mold 10. The mounting is connected go up mould 10 with lower mould 11, fixed two positions prevent that positional deviation from appearing, influence the material and flow and fuse and the ejection of compact.

Further, the mold core 14 is provided with an arc-shaped band 21. The four side surfaces of the mold core 14 are provided with the arc-shaped belts 21, so that the extrusion force of material flow to the mold core 14 can be reduced, the material flow is guided, the material flow is gradually fed, the material flow is fully accumulated in the upper mold 10, and the generation of dead zones is reduced.

Further, the area of the secondary welding chamber 17 is larger than that of the primary welding chamber 16. The primary welding chamber 16 and the secondary welding chamber 17 are in contact, and the secondary welding chamber 17 covers the primary welding chamber 16. The material flow is primarily fused in the secondary welding chamber 17 with larger volume and then pressed into the primary welding chamber 16 with smaller volume, so that the fusion rate is improved, the welding line is reduced, and the extrusion pressure is increased.

The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.

Claims

1. The utility model provides a battery case extrusion die, comprises last mould and lower mould, go up mould and lower mould block, be equipped with the mounting intercommunication go up the mould with the lower mould, its characterized in that:

2. The battery case extrusion die of claim 1, wherein the shunting holes are provided with slopes, and the shunting holes are enlarged from the upper portion to the lower portion.

3. The battery casing extrusion die of claim 1, wherein the upper die further has a first engaging portion, and the lower die has a second engaging portion corresponding to the first engaging portion.

4. The battery case extrusion die of claim 1, wherein the fixing member penetrates the lower die and is inserted into the upper die.

5. The battery case extrusion die of claim 1, wherein the die core is provided with an arc-shaped band.

6. The battery case extrusion die of claim 1, wherein the area of the secondary weld chamber is larger than the area of the primary weld chamber.