CN217888496U

CN217888496U - Lithium battery coating die with positioning block

Info

Publication number: CN217888496U
Application number: CN202220824562.8U
Authority: CN
Inventors: 黄成�; 韦建怀; 付海民; 齐江廷; 尹虎
Original assignee: Guangdong Zhifeng Technology Co ltd
Current assignee: Guangdong Zhifeng Technology Co ltd
Priority date: 2022-04-11
Filing date: 2022-04-11
Publication date: 2022-11-25
Anticipated expiration: 2032-04-11

Abstract

The utility model discloses a take lithium cell coating mould of locating piece, including last die head and lower die head, go up and be provided with the gasket between die head and the lower die head, go up and be formed with ejection of compact slit through the gasket between die head and the lower die head, be provided with feedstock channel on the lower die head and hold the chamber with the main appearance of feedstock channel intercommunication, be provided with vice appearance chamber in the main adjacent side that holds the chamber on the lower die head, go up the die head through a plurality of fasteners and lower die head fixed connection, the rear end of going up die head and lower die head is provided with the guide way, installs the location guide block that matches in the guide way, the utility model discloses a lateral wall design guide way and location guide block behind coating mould, make last die head and lower die head all synchronous by accurate positioning in vertical direction and horizontal direction, can not take place horizontal and fore-and-aft position dislocation between the two, avoid installation process lower mould positioning deviation to lead to the scratch greatly, bruise, promote die head and gasket installation effectiveness and precision, reduced both ends locating piece accessory, have certain help to improving the coating precision.

Description

Lithium battery coating die with positioning block

Technical Field

The utility model relates to a slit extrusion coating die head technical field specifically is a take lithium battery coating mould of locating piece.

Background

One key process in the manufacturing process of lithium batteries is to coat the cathode and anode slurry on the surface of a current collector, and the existing coating equipment is provided with two volume grooves and is supplied from the center. However, the existing upper die and the existing lower die are generally connected through fasteners, the installation process of the upper die, the lower die and the gasket is separated by a rear positioning block and two end positioning blocks to be positioned in the front and back directions and in the left and right directions, the separation positioning mode causes relative sliding (position dislocation) to easily occur in the horizontal direction when the upper die and the lower die (fixed on a bottom plate) are positioned in the front and back directions in the installation process, and then mirror surface scratch is performed in the secondary positioning in the horizontal direction, the gasket is displaced, the installation precision is influenced, the coating precision is further influenced, the consistency of the thickness and the width of discharged materials cannot be ensured, and therefore, the lithium battery coating die with the positioning blocks is provided to solve the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a take lithium cell coating mould of locating piece in order to compensate prior art not enough.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a take lithium cell coating mould of locating piece, includes die head and lower die head, be provided with the gasket between die head and the lower die head, be formed with ejection of compact slit through the gasket between die head and the lower die head, be provided with feedstock channel on the lower die head and hold the chamber with the main appearance that feedstock channel communicates, be provided with vice appearance chamber in the adjacent side that holds the chamber on the lower die head, it is provided with the adjustment tank to go up the die head, it is provided with the differential screw that is used for adjusting ejection of compact slit height that passes the adjustment tank to go up the die head, go up the die head through a plurality of fasteners and lower die head fixed connection the rear end of going up die head and lower die head is provided with the guide way of vertical direction, install the location guide block that matches in the guide way, the location guide block passes through screw fixed connection to the guide way.

More specifically, the cross section of the guide groove is trapezoidal, and the side wall of the positioning guide block is provided with a trapezoidal convex block matched with the guide groove in shape.

More specifically, the number of the guide grooves and the number of the positioning guide blocks are two, and the two guide grooves and the two positioning guide blocks are respectively arranged at the left end and the right end of the rear side wall of the coating die.

More specifically, the fastener is the hexagon socket head cap screw, hexagon socket head cap screw downside is provided with the external screw thread.

More specifically, the lower die head is provided with a screw hole matched with a fastener, and the fastener penetrates through the upper die head and is in threaded connection with the screw hole of the lower die head.

More specifically, the differential screw includes a lower screw and an upper barrel connected by threads.

More specifically, a sealing spacer bush is sleeved between the upper die head and the lower die head and positioned on the outer side of the fastener, and the sealing spacer bush is a teflon member.

More specifically, the lower die head is provided with a spacer mounting groove at the upper end of the screw hole, and the sealing spacer is arranged in the spacer mounting groove.

Compared with the prior art, this take lithium battery coating mould of locating piece possesses following beneficial effect: the utility model discloses a rear side wall design guide way and location guide block at coating die makes upper die head and lower die head all synchronous by the accurate positioning in vertical direction and horizontal direction, can not take place horizontal and fore-and-aft position dislocation between the two, avoids the installation process to go up lower mould positioning deviation and leads to the die head scratch greatly, bruises, promotes die head and gasket installation effectiveness and precision, has reduced both ends locating piece accessory, has certain help to improving the coating precision.

Drawings

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

fig. 2 is a schematic structural view of the positioning guide block of the present invention after being disassembled;

fig. 3 is a schematic structural diagram of the present invention after being disassembled.

Detailed Description

The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.

The embodiment provides an embodiment of a lithium battery coating die with a positioning block, and referring to fig. 1 to 3, the embodiment includes an upper die head 1 and a lower die head 2, a gasket 3 is arranged between the upper die head 1 and the lower die head 2, a discharge slit is formed between the upper die head 1 and the lower die head 2 through the gasket 3, a feeding channel 20 and a main containing cavity 21 communicated with the feeding channel 20 are arranged on the lower die head 2, an auxiliary containing cavity 22 is arranged on the lower die head 2 at the adjacent side of the main containing cavity 21, the upper die head 1 is provided with an adjusting groove 10, the upper die head 1 is provided with a differential screw 11 penetrating through the adjusting groove 10 and used for adjusting the height of the discharge slit, the upper die head 1 is fixedly connected with the lower die head 2 through a plurality of fasteners 12, two guide grooves 50 in the vertical direction are arranged at the rear ends of the upper die head 1 and the lower die head 2, install the location guide block 5 that matches in every guide way 50, location guide block 5 passes through screw 51 fixed connection to in the guide way 50, the transversal trapezoidal of personally submitting of guide way 50, the lateral wall of location guide block 5 is provided with the trapezoidal lug that matches with the guide way shape, and because only be connected through the fastener between upper die head 1 and the lower die head 2 among the prior art, go up mould, lower mould and gasket installation process and lean on back locating piece and two end locating piece separately to fix a position front and back and left and right sides two directions, this kind of separated positioning mode leads to going up mould and lower mould (fixing on the bottom plate) easy relative slip (position dislocation) takes place for the horizontal direction when fixing a position around in the installation process, appears the mirror surface scratch when carrying out horizontal direction secondary positioning again, the gasket aversion, influences the installation accuracy, and then influences the coating accuracy. Through a pair of guide way 50 of upper and lower die head rear end design in the present case, connect directional guide block 5 with screw 51 in guide way 50, make upper die head and lower die head and gasket transversely and vertically synchronous location, avoided both to take place the position dislocation of horizontal direction and vertical direction, guaranteed the installation accuracy requirement, improve the coating precision.

In this embodiment, the fastening member 12 is preferably an inner hexagonal screw, the lower side of the inner hexagonal screw is provided with an external thread, and the upper die head 1 is tightly attached to the upper side of the lower die head 2 and the gasket 3 through the connection of the inner hexagonal screw;

the lower die head 2 is provided with screw holes matched with the fastening pieces 12, and the fastening pieces 12 penetrate through the upper die head 1 and are in threaded connection with the screw holes of the lower die head 2.

Lie in fastener 12 outside cover and be equipped with sealed spacer 13 between last die head 1 and lower die head 2, sealed spacer 13 is indisputable fluorine dragon material component, die head 2 is provided with spacer mounting groove 130 on the screw hole down, sealed spacer 13 sets up in spacer mounting groove 130, and sealed spacer 13 prefers to adopt indisputable fluorine dragon material component, and indisputable fluorine dragon component is corrosion-resistant, its surface is smooth, and contact leakproofness is good between the upper and lower die head, and long-time use can not take place wearing and tearing, can prevent that the thick liquid from flowing into in the screw hole of upper and lower die head, and the later stage of being convenient for is cleaned the mould.

The differential screw 11 comprises a lower screw rod and an upper screw sleeve which are connected through threads, and the depth of the lower screw rod can be adjusted by screwing the upper screw sleeve so as to change the distance between the adjusting grooves 10 and further adjust the height of the discharging slit.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. The utility model provides a take lithium battery coating mould of locating piece, includes die head and lower die head, be provided with the gasket between upper die head and the lower die head, be formed with ejection of compact slit through the gasket between upper die head and the lower die head, be provided with feedstock channel on the lower die head and hold the chamber with the main of feedstock channel intercommunication, be provided with vice appearance chamber in the adjacent side of main appearance chamber on the lower die head, upper die head is provided with the adjustment tank, upper die head is provided with the differential screw that passes the adjustment tank and be used for adjusting ejection of compact slit height, upper die head passes through a plurality of fasteners and lower die head fixed connection, its characterized in that, the rear end of upper die head and lower die head is provided with the guide way, install the location guide block that matches in the guide way, the location guide block passes through screw fixed connection to the guide way in.

2. The lithium battery coating die with the positioning block as claimed in claim 1, wherein: the cross section of the guide groove is trapezoidal, and the side wall of the positioning guide block is provided with a trapezoidal convex block matched with the guide groove in shape.

3. The lithium battery coating die with the positioning block as recited in claim 1, wherein: the number of the guide grooves and the number of the positioning guide blocks are two respectively and are arranged at the left end and the right end of the rear side wall of the coating die respectively.

4. The lithium battery coating die with the positioning block as recited in claim 1, wherein: the fastener is an inner hexagonal screw, and an external thread is arranged on the lower side of the inner hexagonal screw.

5. The lithium battery coating die with the positioning block as recited in claim 4, wherein: the lower die head is provided with a screw hole matched with the fastening piece, and the fastening piece penetrates through the upper die head and is in threaded connection with the screw hole of the lower die head.

6. The lithium battery coating die with the positioning block as recited in claim 1, wherein: the differential screw comprises a lower screw rod and an upper screw sleeve which are connected through threads.

7. The lithium battery coating die with the positioning block as claimed in claim 1, wherein: and a sealing spacer bush is sleeved between the upper die head and the lower die head and positioned on the outer side of the fastener, and the sealing spacer bush is a teflon member.

8. The lithium battery coating die with the positioning block as recited in claim 7, wherein: the lower die head is provided with a spacer mounting groove at the upper end of the screw hole, an avoiding groove is processed correspondingly to the upper die head, and the sealing spacer is arranged in the spacer mounting groove.