CN219642896U

CN219642896U - Film coating device

Info

Publication number: CN219642896U
Application number: CN202320580365.0U
Authority: CN
Inventors: 请求不公布姓名
Original assignee: Svolt Energy Technology Co Ltd
Current assignee: Svolt Energy Technology Co Ltd
Priority date: 2023-03-22
Filing date: 2023-03-22
Publication date: 2023-09-05
Anticipated expiration: 2033-03-22

Abstract

The utility model provides a coating device which comprises a frame, coating mechanisms and a driving part, wherein the coating mechanisms are arranged on the frame in an up-down opposite mode, and the driving part is arranged on the frame and connected with one coating mechanism so as to drive the coating mechanism to be close to or far from the other coating mechanism. Each coating mechanism comprises a mounting seat arranged on the frame, a pressing plate arranged on the mounting seat in a sliding manner, folding knives respectively arranged on two opposite sides of the pressing plate, and a first elastic piece arranged between the mounting seat and the pressing plate. A gap for avoiding the insulating film is formed between the folding knife and the pressing plate, and the pressing plate is arranged in a protruding mode relative to the folding knife in the up-down direction under the pushing of the first elastic piece, so that the pressing plate is abutted against the insulating film before the folding knife. According to the film coating device, the insulating film is sleeved on the battery core through the two film coating mechanisms which are arranged on the frame in a relative mode, so that one-time driving is achieved, the upper and lower film coating operation of the battery core is achieved, multiple film coating procedures are effectively reduced, and production cost is effectively reduced.

Description

Film coating device

Technical Field

The utility model relates to the technical field of battery automation equipment, in particular to a coating device.

Background

The production of the lithium battery cell is provided with a Mylar film (namely an insulating film) coating process, wherein the upper insulating film and the lower insulating film are mainly coated on the cell. The equipment needed by the whole coating process is various, and the equipment comprises a coating machine, a bottom hot-melting machine, a top hot-melting machine, a side hot-melting machine, an upper folding knife mechanism, a lower folding knife mechanism and a sealing glue sticking machine. The equipment has slow beat, large investment and large occupied area, cannot adapt to the beat requirement of a higher-speed production line with the speed of more than 9PPM, reduces the production efficiency of the battery cell and increases the production cost.

Disclosure of Invention

In view of the above, the present utility model aims to provide a coating device, so as to reduce the number of using equipment and processes in a coating process, improve the beat efficiency, and reduce the production cost.

In order to achieve the above purpose, the technical scheme of the utility model is realized as follows:

the coating device comprises a frame, coating mechanisms which are arranged on the frame in an up-down opposite mode, and a driving part which is arranged on the frame, wherein the driving part is connected with one of the coating mechanisms so as to drive the coating mechanism to be close to or far from the other coating mechanism;

each coating mechanism comprises a mounting seat arranged on the frame, a pressing plate arranged on the mounting seat in a sliding manner, folding knives respectively arranged on two opposite sides of the pressing plate, and a first elastic piece arranged between the mounting seat and the pressing plate;

and a gap for avoiding the insulating film is formed between the folding knife and the pressing plate, and the pressing plate is arranged in a protruding manner relative to the folding knife in the up-down direction under the pushing of the first elastic piece, so that the pressing plate is abutted against the insulating film before the folding knife.

Further, an adsorption part connected with an external vacuum device is arranged on the pressing plate, and the adsorption part can adsorb the insulating film.

Further, a height adjusting part is arranged between at least one of the pressing plates including the coating mechanism and the mounting seat, and the height adjusting part is used for adjusting the height of the pressing plates.

Further, the pressing plate comprises a pressing plate body and a guide post connected with the pressing plate body, and the pressing plate is arranged on the mounting seat in a sliding manner through the guide post; and/or the number of the groups of groups,

the height adjusting part comprises a nut arranged on the mounting seat and an external thread arranged on the guide post.

Furthermore, a linear bearing is arranged on the mounting seat, the guide post is slidably arranged in the linear bearing, and an elastic pad is clamped between the nut and the linear bearing.

Further, a distance adjusting part is arranged between the pressing plate and the folding knife, and the distance adjusting part can adjust the width of the gap.

Further, the folding knife is arranged on the mounting seat through a mounting block;

and/or the distance adjusting part comprises a handle which is in threaded connection with the mounting seat, the mounting block is sleeved on a screw rod part of the handle, and a second elastic piece which is in butt joint between the mounting block and the mounting seat is sleeved on the screw rod part.

Further, an alignment adjusting part is arranged between at least one of the coating mechanisms and the mounting seat, and the alignment adjusting part is used for adjusting the positions of the coating mechanisms so as to align the two coating mechanisms in the up-down direction.

Further, the alignment adjusting part comprises adjusting rods which are respectively arranged at two sides of the mounting seat in a first direction and/or a second direction, the first direction is orthogonal to the second direction, and the mounting seat is clamped between the adjusting rods at two sides.

Further, a positioning part for positioning the battery cell is arranged on the rack.

Compared with the prior art, the utility model has the following advantages:

according to the coating device, the two oppositely arranged coating mechanisms are arranged, when the driving part drives one coating mechanism to approach the other coating mechanism, the folding knife on the coating mechanism protrudes out of the pressing plate due to the compression of the first elastic piece, so that the upper insulating film and the lower insulating film of the battery core are pushed by the folding knife successively to be folded and wrapped on the battery core. Thereby realizing that one driving part completes the coating process, greatly improving the coating efficiency and reducing the coating process.

In addition, through setting up high adjusting part, can adjust the distance between two clamp plates in order to adapt to the electric core diolame of different thickness to increase the adaptability of this diolame device. Through setting up the guide pillar that links to each other with the clamp plate body, can effectively guarantee at clamp plate body moulding-die in-process, the counterpoint precision of two clamp plate bodies and electric core.

In addition, the distance adjusting part is arranged to adjust the gap between the folding knife and the pressing plate, so that the insulating film with different thickness is suitable. And through setting up handle and the second elastic component of spiro union on the mount pad, the fast adjustment in clearance between folding knife and the clamp plate of being convenient for improves the convenience. And the two coating mechanisms are adjusted by the alignment adjusting part, so that the accuracy of the coating position is ensured.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

fig. 1 is a schematic front view of a film coating apparatus according to an embodiment of the present utility model;

FIG. 2 is a schematic cross-sectional view of the structure at A-A in FIG. 1;

fig. 3 is a schematic perspective view of a film coating apparatus according to an embodiment of the present utility model;

FIG. 4 is a schematic cross-sectional view of a height adjustment section of an upper envelope mechanism according to an embodiment of the present utility model;

FIG. 5 is an enlarged partial schematic view at I of FIG. 3;

fig. 6 is a schematic structural diagram of a negative electrode positioning portion according to an embodiment of the utility model.

Reference numerals illustrate:

1. a frame; 2. an upper coating mechanism; 3. a lower coating mechanism; 4. a driving section; 5. an insulating film; 6. a battery cell;

101. a fixing plate; 102. an optical axis; 103. a guide bearing; 104. a protection plate;

201. a mounting base; 202. a pressing plate; 203. a folding knife; 204. a first elastic member; 205. a height adjusting section; 206. a linear bearing; 207. an elastic pad; 208. a distance adjusting section; 209. an alignment regulating part; 210. a negative electrode positioning portion; 211. a height adjusting block; 212. a positive electrode positioning portion;

2021. a platen body; 2022. a guide post; 2051. a nut;

2081. a handle; 2082. a mounting block; 2083. a second elastic member;

2091. an adjusting rod; 2092. a U-shaped block; 2093. a T-shaped block;

2101. a locking lever; 2102. a locking block; 2103. a guide rail; 2104. a slide block; 2105. a pushing plate.

Detailed Description

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.

In the description of the present utility model, it should be noted that the azimuth or positional relationship indicated by the terms "upper", "lower", "inner", "back", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model. In addition, the terms "first," "second," are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, the terms "upper, lower, left, right, front, and rear" used in the present embodiment are defined with reference to the up-down direction, the left-right direction, and the front-rear direction of the automobile. The vertical direction of the vehicle, i.e., the height direction of the vehicle (Z direction), the front-rear direction of the vehicle, i.e., the longitudinal direction of the vehicle (X direction), and the lateral direction of the vehicle, i.e., the width direction of the vehicle (Y direction).

Furthermore, in the description of the present utility model, the terms "mounted," "connected," and "connected," are to be construed broadly, unless otherwise specifically defined. For example, the connection can be fixed connection, detachable connection or integrated connection; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in combination with specific cases.

The utility model will be described in detail below with reference to the drawings in connection with embodiments.

The embodiment relates to a coating device, which comprises a frame 1, coating mechanisms which are arranged on the frame 1 vertically oppositely, and a driving part 4 arranged on the frame 1, wherein the driving part 4 is connected with one coating mechanism so as to drive the coating mechanism to be close to or far away from the other coating mechanism.

Each coating mechanism comprises a mounting seat 201 arranged on the frame 1, a pressing plate slidably arranged on the mounting seat 201, folding knives 203 respectively arranged on two opposite sides of the pressing plate, and a first elastic piece 204 arranged between the mounting seat 201 and the pressing plate. A gap is formed between the folding knife 203 and the pressing plate to avoid the insulating film 5, and the pressing plate is provided so as to protrude in the up-down direction with respect to the folding knife 203 by pushing down the first elastic member 204, so that the pressing plate comes into contact with the insulating film 5 before the folding knife 203.

According to the coating device, two oppositely arranged coating mechanisms are arranged, one coating mechanism is driven by the driving part 4, so that the pressing plate is pressed against the insulating film 5, the insulating film 5 is extruded between the folding knife 203 and the pressing plate through the folding knife 203 to be folded, one-step forming of the coating process of the battery cell 6 is realized, the using equipment and the number of the coating processes are reduced, the beat efficiency is improved, and the production cost is reduced.

Based on the above overall description, as shown in fig. 1 to 3, an exemplary structure of the coating device of the present embodiment, the coating mechanism of the present embodiment is disposed on the frame 1, and for convenience of implementation, the frame 1 is an "L" shaped frame formed by welding a plurality of rectangular pipes. One of the coating mechanisms is arranged on a transverse plane at the lower end of the frame 1, and is called a lower coating mechanism 3 for convenience of description.

The battery cell 6 of the present embodiment is provided on the lower envelope mechanism 3, and the insulating film 5 above the battery cell 6, as described below, is vacuum-adsorbed on the upper platen, and the insulating film 5 below the battery cell 6 is vacuum-adsorbed on the lower platen. Along both sides of the width direction of the battery cell 6, the upper and lower insulating films 5 are both protruded from the width of the battery cell 6.

The upper coating mechanism 2 is driven to move towards the lower coating mechanism 3 through the driving part 4, so that the upper pressing plate drives the upper insulating film 5 to be propped against the battery core 6, the upper insulating film 5 is extruded downwards through the upper folding knives 203 arranged on the two sides of the battery core 6, and the upper insulating film 5 is extruded into a gap between the folding knives 203 and the pressing plate, so that the upper insulating film is folded downwards and coated on the two sides of the battery core 6.

The other coating mechanism is arranged above the frame 1 and is connected to the frame 1 in a sliding way through a fixed plate 101 and a guide bearing 103 which are fixed on the vertical surface of the frame 1. This embodiment is referred to as an upper envelope mechanism 2. As shown in fig. 3, an optical axis 102 is fixedly connected to the upper envelope mechanism 2 of the present embodiment, and the optical axis 102 is slidably connected to a guide bearing 103. In order to achieve a better guiding effect, two sets of guiding bearings 103 and an optical axis 102 are provided in the present embodiment to achieve the guiding effect of the upper coating mechanism 2.

As a preferred embodiment, the driving part 4 of the present embodiment adopts a cylinder as a power source, and as shown in fig. 3, the cylinder is fixedly connected to the fixing plate 101 and is disposed between two guide bearings 103, and in order to prevent the upper envelope mechanism 2 from falling down to strike the cylinder, a protection plate 104 is connected between the two optical axes 102. An anti-collision block is provided at the center of the protection plate 104. The anti-collision block may also be provided as a proximity switch, and the traveling direction of the cylinder is controlled by the solenoid valve, so as to prevent the cylinder from being bumped by the shielding plate 104.

For convenience of implementation, the pressing plate of this embodiment is provided with an adsorption portion connected to an external vacuum device, and the adsorption portion can adsorb the insulating film 5. As a specific implementation manner, the adsorption portion of this embodiment is a plurality of adsorption holes, and two pressing plates 202 arranged oppositely up and down are provided with adsorption holes, and the adsorption holes are connected with a vacuumizing device. The insulating film 5 is placed on the upper and lower pressing plates before the envelope. As described above, the insulating film 5 is vacuumized by the vacuumizer and adsorbed on the pressing plate for positioning, so that the stability of the coating process is ensured.

In addition, a height adjusting part 205 is provided between the pressing plate of at least one of the coating mechanisms and the mounting base 201, and the height adjusting part 205 is used for adjusting the height of the pressing plate. As shown in fig. 2 and 3, in order to adapt to the thickness of the different battery cells 6, the upper coating mechanism 2 and the lower coating mechanism 3 of the present embodiment are provided with height adjusting portions 205.

Further, the pressing plate 202 includes a pressing plate body 2021, and a guide post 2022 connected to the pressing plate body 2021, where the pressing plate body 2021 is slidably disposed on the mounting base 201 through the guide post 2022. The height adjusting section 205 includes a nut 2051 provided on the mount 201 and an external thread provided on the guide post 2022.

As shown in fig. 2 and 3, the pressing plate body 2021 of the present embodiment is a rectangular plate structure, and two guide posts 2022 are vertically and fixedly connected to two ends of the pressing plate body 2021. And the pressing plate body 2021 is provided with a circular through hole for the guide post 2022 to penetrate.

In addition, the mount 201 of the present embodiment is provided with a linear bearing 206, the guide post 2022 is slidably disposed in the linear bearing 206, and the elastic pad 207 is interposed between the nut 2051 and the linear bearing 206. As shown in fig. 2 and 3, the guide post 2022 is screwed with a nut 2051, the linear bearing 206 is fixedly connected to the mounting base 201, and the distance of the pressing plate 202 protruding from the folding knife 203 can be adjusted by manually rotating the nut 2051. So that the distance between the two pressing plates 202 arranged up and down can be adjusted to adapt to the battery cells 6 with different thicknesses.

In order to achieve a good use effect, as shown in fig. 2, an elastic pad 207 is provided between the linear bearing 206 and the nut 2051 in this embodiment, and specifically, the elastic pad 207 is made of rubber. Not only is damage caused by friction with the linear bearing 206 prevented during the rotation of the nut 2051, but also a certain operation feeling can be improved.

In order to improve the applicability of the coating apparatus of the present embodiment, a distance adjusting portion 208 is provided between the pressing plate 202 and the folding knife 203 of the present embodiment, and the distance adjusting portion 208 can adjust the width of the gap. Therefore, the device can be applied to insulating films 5 with different thicknesses and different materials, and the angle of the insulating film 5 after being folded can be changed according to the adjustment of the gap width.

For convenience of implementation, the folding knife 203 of the present embodiment is disposed on the mounting seat 201 through the mounting block 2082. Meanwhile, the distance adjusting portion 208 of the present embodiment includes a handle 2081 screwed on the mounting seat 201, and a mounting block 2082 is sleeved on a screw portion of the handle 2081, and a second elastic member 2083 abutting between the mounting block 2082 and the mounting seat 201 is sleeved on the screw portion. As shown in fig. 3 and 4, the mounting block 2082 of the present embodiment is a plate-like structure provided on both sides of the mounting base 201.

As shown in fig. 3, for convenience of operation, the width of the gap is adjusted by using a T-shaped handle 2081. The end of the handle 2081 near the mounting seat 201 is provided with a threaded section, and the handle 2081 is provided with a step surface capable of being pressed against the mounting block 2082. The threaded section of the handle 2081 is threaded through the mounting block 2082 and then into engagement with the mounting block 201. And, the mounting seat 201 is provided with a receiving hole for receiving the second elastic piece 2083 at a position corresponding to the handle 2081, and the second elastic piece 2083 is disposed in the receiving hole.

When the second elastic member 2083 is in a free state, a space is provided between the mounting seat 201 and the mounting block 2082, and when the second elastic member 2083 is driven to approach the mounting seat 201, the space distance between the mounting seat 201 and the mounting block 2082 is shortened, so as to drive the folding knife 203 connected to the mounting block 2082 to approach the side surface of the pressing plate 202.

Further, an alignment regulating portion 209 is provided between at least one of the coating mechanisms and the mount 201, and the alignment regulating portion 209 is used to regulate the position of the coating mechanism so that the two coating mechanisms are aligned in the up-down direction. As a specific embodiment, the alignment adjusting portion 209 of the present embodiment is provided on the lower coating mechanism 3, and as shown in fig. 3 and 5, the symptomatic adjustment portion includes a T-shaped block fixedly connected to the mounting seat 201 of the lower coating mechanism 3, and a U-shaped block sleeved on the vertical section of the T-shaped block 2093.

Further, the alignment regulating portion 209 includes adjusting rods 2091 disposed on both sides of the mounting base 201 in a first direction and/or a second direction, the first direction being orthogonal to the second direction, and the mounting base 201 being sandwiched between the adjusting rods 2091 on both sides.

Based on the illustration in fig. 3, the first direction in this embodiment is the width direction of the frame 1, as in the Y direction in the figure. The second direction is the longitudinal direction of the frame 1, as shown by the X-direction. The alignment regulating portion 209 in the present embodiment includes an adjustment lever 2091 provided in the first direction.

In a specific structure, as shown in fig. 5, the adjusting rod 2091 is a bolt that is disposed on a U-shaped block that is fixedly connected to the frame 1. And be equipped with the bolt hole at the both sides face of U-shaped piece 2092, make T-shaped piece 2093 follow the fore-and-aft movement of first direction through rotating the regulation pole 2091 that sets up on the bolt hole, can adjust the fore-and-aft adjustment of lower coating mechanism 3 along frame 1 width direction to make top board and bottom board's position to correspond, avoid the position error of electric core 6 diolame.

Of course, in other embodiments, the adjusting rods 2091 may be disposed orthogonal to each other in both the first direction and the second direction. And set up respectively with above-mentioned U-shaped piece 2092 and T-shaped piece 2093 in two directions, through the regulation pole 2091 of rotating two directions, make lower diolame mechanism 3 can follow the X direction of frame 1 and Y to remove to with last diolame mechanism 2 alignment, thereby guarantee the accuracy and the uniformity of electric core 6 diolame.

In addition, in order to adjust the height of the whole upper coating mechanism 2, the upper end of the frame 1 of the present embodiment is further provided with a height adjusting block 211. The height adjusting block 211 is screwed with an adjusting bolt, and the lower end of the adjusting bolt is fixedly connected with the fixing plate 101. When the adjusting bolt is driven, the height of the upper envelope mechanism 2 can be adjusted.

In order to avoid displacement of the battery cell 6 during the encapsulation process, the frame 1 of the present embodiment is provided with a positioning portion 210 for positioning the battery cell 6. As shown in fig. 3 and 6, the positioning portion in the present embodiment has a positive electrode positioning portion 212 and a negative electrode positioning portion 210 provided on both sides of the battery cell 6. The positive and negative positioning portions 212, 210 may be of the same construction, disposed opposite each other, or may be adapted according to field device placement.

Taking the negative electrode positioning portion 210 as an example, the negative electrode positioning portion 210 includes a locking rod 2101, a push plate 2105 fixedly connected to one end of the locking rod 2101, and an operable spherical handle at the other end of the locking rod 2101. And the locking rod 2101 is provided with a thread section, the frame 1 is fixedly connected with a guide rail 2103, the guide rail 2103 is provided with a locking block 2102, the locking rod 2101 is in threaded connection with the locking block 2102, the pushing plate 2105 is fixedly connected with a sliding block 2104, and the sliding block 2104 is in sliding connection with the guide rail 2103.

Through rotatory sphere handle, can make locking lever 2101 drive push pedal 2105 butt in electric core 6 side, through the direction of slider 2104 and guide rail 2103, improve the butt position accuracy of push pedal 2105, push away through positive pole location portion 210 and negative pole location portion 210 of both sides to make the fixed in position of electric core 6 in the diolame process. Thereby improving the coating quality.

According to the coating device of the embodiment, through the two coating mechanisms which are arranged on the frame 1 in a relative mode, the insulating film 5 arranged between the two coating mechanisms is extruded and folded through the driving part 4, and the insulating film 5 is pressed on the battery cell 6 in a sleeved mode. Not only realizes the up-and-down coating work of the battery cell 6 by one-time driving, but also reduces the complicated turnover of a plurality of coating procedures in the prior art, and effectively reduces the production cost.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims

1. The utility model provides a diolame device which characterized in that:

the device comprises a frame, coating mechanisms and driving parts, wherein the coating mechanisms are oppositely arranged on the frame up and down, and the driving parts are arranged on the frame and are connected with one of the coating mechanisms so as to drive the coating mechanisms to be close to or far away from the other coating mechanism;

2. The encapsulation apparatus of claim 1, wherein:

the pressing plate is provided with an adsorption part connected with an external vacuum device, and the adsorption part can adsorb the insulating film.

3. The encapsulation apparatus of claim 1, wherein:

at least one of the coating mechanisms is provided with a height adjusting part between the pressing plate and the mounting seat, and the height adjusting part is used for adjusting the height of the pressing plate.

4. A coating apparatus according to claim 3, wherein:

the pressing plate comprises a pressing plate body and a guide post connected with the pressing plate body, and the pressing plate is arranged on the mounting seat in a sliding manner through the guide post;

and/or the height adjusting part comprises a nut arranged on the mounting seat and external threads arranged on the guide post.

5. The encapsulation tool of claim 4, wherein:

the mounting seat is provided with a linear bearing, the guide post is slidably arranged in the linear bearing, and an elastic pad is clamped between the nut and the linear bearing.

6. The encapsulation apparatus of claim 1, wherein:

a distance adjusting part is arranged between the pressing plate and the folding knife, and the distance adjusting part can adjust the width of the gap.

7. The encapsulation apparatus of claim 6, wherein:

the folding knife is arranged on the mounting seat through a mounting block;

8. The encapsulation apparatus of claim 1, wherein:

an alignment adjusting part is arranged between at least one of the coating mechanisms and the mounting seat, and the alignment adjusting part is used for adjusting the positions of the coating mechanisms so as to align the two coating mechanisms in the up-down direction.

9. The encapsulation apparatus of claim 8, wherein:

the alignment adjusting part comprises adjusting rods which are respectively arranged at two sides of the mounting seat in a first direction and/or a second direction, the first direction is orthogonal to the second direction, and the mounting seat is clamped between the adjusting rods at two sides.

10. The encapsulation tool of any one of claims 1 to 9, wherein:

and a positioning part for positioning the battery cell is arranged on the frame.