CN210138795U - Gasket for extrusion die head - Google Patents
Gasket for extrusion die head Download PDFInfo
- Publication number
- CN210138795U CN210138795U CN201920356543.5U CN201920356543U CN210138795U CN 210138795 U CN210138795 U CN 210138795U CN 201920356543 U CN201920356543 U CN 201920356543U CN 210138795 U CN210138795 U CN 210138795U
- Authority
- CN
- China
- Prior art keywords
- gasket
- main body
- butt joint
- joint part
- body part
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model belongs to extrusion coating machine field, concretely relates to a gasket for extrusion die head. The gasket comprises a discharge port and a chamfer arranged at the discharge port, the direction of the gasket, which is consistent with the direction of the discharge port, is defined as the width direction, the direction, which is vertical to the width direction, in the horizontal plane where the gasket is located is the length direction, the gasket further comprises a main body part and a butt joint part detachably connected to the main body part, the chamfer is arranged on the butt joint part, a splicing bulge is arranged on one of the butt joint part and the main body part, and the other butt joint part is provided with a positioning groove for detachably embedding the splicing bulge and enabling the butt joint part and the main body part to be in stop fit along. When the size of the chamfer on the gasket needs to be adjusted, the butt joint part can be directly taken down from the main body part for replacement, the operation is simple, the production efficiency is high, and the butt joint part can still be ensured to be connected with the main body part when being impacted by slurry due to the stop matching between the splicing protrusions and the positioning grooves.
Description
Technical Field
The utility model belongs to extrusion coating machine field, concretely relates to a gasket for extrusion die head.
Background
The production of the pole piece of the lithium ion battery comprises the steps of coating, rolling, slitting and the like, wherein the quality of the pole piece coating is crucial, and the consistency and the safety of the battery capacity are directly influenced. In the pole piece coating process, slurry enters the extrusion coating machine from the pressure cavity and is uniformly coated on the surface of the base material after flowing out of the discharge hole of the die head gasket. Because the slurry discharging area in the extrusion coating machine is not provided with a buffer area, the flow velocity of the slurry flowing through the edge of the discharging port is very high, the slurry at the edge of the coating area can shrink to a certain extent due to uneven surface tension distribution, the edge of the dried coating can be higher than the thickness median of the coating area, the edge bulging phenomenon of the pole piece is easily caused, the quality of the pole piece is seriously influenced, and the service performance of a subsequent battery is further influenced.
An authorization publication number is CN205146588U discloses an extrusion coating machine extrusion die head and die head gasket in the utility model patent document of a china, and extrusion die head includes the die lip and has the lower die lip in material chamber to and parallel arrangement is in the die head gasket between last die lip and the lower die lip, and the die head gasket is for having the rectangle structure of certain thickness, be equipped with on its width direction with the discharge gate that expects the chamber intercommunication, the outer end edge of discharge gate is provided with the chamfer that is used for improving pole piece drum limit phenomenon. The chamfer improves the edge coating effect of the discharge port, avoids the edge bulging phenomenon of the pole piece and ensures the weight consistency of the pole piece. But in the actual production process, because of differences such as thick liquids composition, solid content, viscosity change, the size that needs adjustment gasket chamfer, if adopt the extrusion die head disclosed in the above-mentioned utility model file, operating personnel need dismantle whole die head gasket get off to change the gasket that has different chamfers sizes, this process complex operation, very inconvenient.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a gasket for extrusion die for solve complex operation, inconvenient technical problem when the chamfer size of adjustment gasket among the prior art.
In order to achieve the above object, the utility model discloses a technical scheme for extrusion die's gasket is: the gasket comprises a discharge hole and a chamfer arranged at the discharge hole, the direction of the gasket, which is consistent with the direction of the discharge hole, is defined as the width direction, the direction perpendicular to the width direction in the horizontal plane where the gasket is located is the length direction, the gasket further comprises a main body part and a butt joint part detachably connected to the main body part, the chamfer is arranged on the butt joint part, a splicing bulge is arranged on one of the butt joint part and the main body part, and the other butt joint part is provided with a positioning groove for detachably embedding the splicing bulge and enabling the butt joint part and the main body part to be in stop fit along the length direction and the width.
The utility model has the advantages that: the splicing bulge and the positioning groove are matched to realize the detachable connection between the butt joint part and the main body part, when the size of a chamfer on the gasket is required to be adjusted, the butt joint part can be directly taken down from the main body part for replacement, the operation is simple and convenient, the production efficiency is high, the upper end face and the lower end face of the splicing bulge are pressed by the upper die head and the lower die head to realize the positioning of the butt joint part along the thickness direction of the gasket, and the stop matching between the splicing bulge and the positioning groove can ensure that the butt joint part can still ensure the stability of connection with the main body part when being impacted by slurry.
As a further limitation to the above main body portion, the main body portion is generally U-shaped, and has an extension extending toward the inside of the U-shaped opening in the longitudinal direction at the U-shaped opening end of the main body portion, and the abutting portion is detachably connected to the extension. The butt joint part and the extension section are detachably connected, so that the butt joint part has less material, and unnecessary material consumption is reduced when the replacement butt joint part of the gasket is manufactured.
As a further limitation to the splicing bulges, the cross sections of the splicing bulges are T-shaped, and the positioning grooves are T-shaped grooves matched with the splicing bulges. Other structural style are compared to the T shape structural style of concatenation arch and constant head tank, and the relative main part of restriction butt joint portion that can be better is at the ascending motion of length direction and width direction, avoids the butt joint portion to drop from the main part, helps increasing the stability of whole gasket structure.
As a further limitation to the above-mentioned spout, the spout is formed by a space between the butting portions. Compared with the discharge port structure formed by the butt joint part and the main body part, the discharge port structure formed by the butt joint part alone is not easy to deform when bearing the impact from slurry.
As a further limitation of the above gasket, the gasket includes two or more alternative abutment portions having different chamfers. Through the replacement of different chamfer butt joint parts, the extrusion die head where the gasket is located can be adapted to slurry with different components, solid content and viscosity, so that the gasket has better universality and adaptability.
Drawings
Fig. 1 is a schematic structural view of a gasket according to example 1 of the gasket for an extrusion die according to the present invention;
FIG. 2 is an exploded view of the gasket of FIG. 1;
fig. 3 is a schematic view of a structural relationship between a butt portion and a main body portion in an embodiment 2 of a gasket for an extrusion die according to the present invention;
fig. 4 is a schematic view of the structural relationship between the butt portion and the main body portion in example 3 of the gasket for an extrusion die according to the present invention;
fig. 5 is a schematic structural view of a gasket of example 4 of a gasket for an extrusion die according to the present invention;
fig. 6 is a schematic exploded view of a gasket of example 5 for an extrusion die according to the present invention;
fig. 7 is a schematic view of a gasket structure of example 6 of a gasket for an extrusion die according to the present invention;
in the figure, 101-main body part, 1013-T-shaped groove, 102-butt joint part, 1021-butt joint surface, 1022-chamfer, 1023-T-shaped splicing bulge, 103-material cavity, 104-discharge hole, 401-main body part, 402-butt joint part, 403-butt joint part, 501-dovetail-shaped splicing bulge, 201-L-shaped splicing bulge, 202-L-shaped groove, 301-dovetail-shaped splicing bulge, 302-dovetail-shaped groove, 502-L-shaped splicing bulge, 601-main body part and 602-butt joint part.
Detailed Description
The following describes embodiments of the present invention with reference to the accompanying drawings.
The utility model discloses an embodiment 1 for extrusion die's gasket, as shown in fig. 1 to fig. 2, the whole rectangle structure that is thickness 1mm of gasket, the material chamber 103 that runs through about its inside is equipped with, is equipped with discharge gate 104 in one side of material chamber 103, and discharge gate 104 department is equipped with the chamfer, and the orientation unanimous with the discharge gate orientation is width direction on the definition gasket, and the horizontal plane at gasket place is length direction with width direction vertically orientation. Specifically, in this embodiment, the gasket includes a main body 101 and an abutting portion 102 detachably connected to the main body 101, where the main body 101 and the abutting portion 102 are both sheet-shaped structures with a thickness of 1mm, the main body is a U-shaped structure as a whole, an opening end of the U-shaped structure of the main body has an extension section extending toward the inside of the U-shaped opening in the length direction, and the abutting portion is detachably connected to the extension section.
In other embodiments, the body portion is generally U-shaped, and the docking portion is detachably connected to the open end of the U-shape of the body portion, which is less material than the docking portion of this embodiment detachably connected to the extending section of the body portion having the U-shaped structure, so that when the docking portion of the gasket is replaced, unnecessary waste of material due to excessive material on the docking portion is avoided.
The abutting portion 102 is provided with an abutting surface 1021 for engaging with the main body portion 101 of the gasket, and the abutting surface 1021 is a side surface extending in the height direction of the gasket at the engaging position of the main body portion 101 and the abutting portion 102 in fig. 2. The butting parts 102 are used in pairs and are oppositely arranged at the discharge hole 104 of the gasket, the discharge hole 104 of the whole gasket is formed by the interval between the two butting parts 102, the outer edge of the butting part 102, which is positioned on the whole gasket, is provided with a chamfer 1022 for improving the edge bulging phenomenon of the pole piece, and the sizes of the corresponding chamfers 1022 on the two butting parts 102 used in pairs are the same.
In this embodiment, two butt-joint portions used in pairs have the same structure, and one of the butt-joint portions is taken as an example for specific explanation, as shown in fig. 2, a splicing protrusion is arranged on a butt-joint surface 1021 of the butt-joint portion 102, the cross section of the splicing protrusion is T-shaped to form a T-shaped splicing protrusion 1023, a positioning groove is correspondingly arranged on a side surface of the main body portion 101 matched with the butt-joint surface 1021, the positioning groove is a T-shaped groove 1013 matched with the T-shaped splicing protrusion 1023 in shape, and the T-shaped splicing protrusion 1023 on the butt-joint portion 102 is matched with the T-shaped groove 1013 on the main body portion 101 to realize detachable connection between the butt-. The inner wall surface of the groove of the T-shaped groove 1013 and the side wall surface of the T-shaped projection 1023 in the thickness direction constitute a stop surface for limiting the movement of the T-shaped projection 1023 in the horizontal plane of the gasket so as to satisfy the stop fit of the butt joint part and the main body part in the horizontal plane. In other embodiments, the T-shaped mating protrusion may be located on a side of the body portion that mates with the mating surface, and the corresponding T-shaped slot is located on the mating surface of the mating portion.
The gasket includes a main body portion and two pairs of alternate abutment portions having different chamfer sizes, the chamfer size on the abutment portions being w h, as shown in fig. 2, where w is the dimension of the chamfer in the gasket length direction in mm and h is the dimension of the chamfer in the gasket width direction in mm. In this embodiment, the chamfer sizes of the two pairs of butt joint portions are 1 × 2 and 2 × 4 respectively, and the main body portion can be respectively adapted to the different butt joint portions of the two pairs of chamfers to form a gasket with chamfers of two different sizes, so that the gasket is suitable for extrusion dies with different slurry characteristics, the whole gasket has good universality, and the material cost of gasket parts is saved. Of course, in other embodiments, the gasket may include one main body portion and a plurality of pairs of alternative abutments with different chamfer sizes, and the chamfer sizes on the abutments used in these pairs may be 2 × 1, 0.5 × 2, 1 × 1, 1 × 3, 2 × 2, 2 × 3, 2 × 4, etc.
The gasket in this embodiment can assemble and form the chamfer structure of two kinds of equidimensions not, when the size of gasket chamfer needs to be adjusted, only need take off original butt joint portion, replace into have other chamfer big or small butt joint portion can, dismantle the process of getting off the gasket of change different chamfer big or small with whole die head among the prior art and compare, easy operation, the ten minutes convenience to gasket chamfer big or small adjustment in this embodiment, and the material cost of gasket has been saved to the gasket structure that has different chamfer big or small in this embodiment.
In example 2 of the gasket for an extrusion die of the present invention, as shown in fig. 3, the difference from example 1 is that: the cross section of the splicing bulge can be L-shaped to form an L-shaped splicing bulge 201, the positioning groove is an L-shaped groove 202 matched with the L-shaped splicing bulge 201 in shape, the L-shaped splicing bulge 201 on the butt joint part is matched with the L-shaped groove 202 on the main body part to realize detachable connection between the butt joint part and the main body part, and the inner wall surface of the groove of the L-shaped groove 202 and the side wall surface of the L-shaped splicing bulge 201 in the thickness direction form a stop surface for limiting the L-shaped splicing bulge 201 to move in the horizontal plane of the gasket so as to meet the stop matching of the butt joint part and the main body part in.
In example 3 of a gasket for an extrusion die of the present invention, as shown in fig. 4, the difference from example 1 is that: the cross section of the splicing bulge can be in a dovetail shape to form a dovetail-shaped splicing bulge 301, the positioning groove is a dovetail-shaped groove 302 matched with the dovetail-shaped splicing bulge 301 in shape, the dovetail-shaped splicing bulge 301 on the butt joint part is matched with the dovetail-shaped groove 302 on the main body part to realize detachable connection between the butt joint part and the main body part, and the inner wall surface of the groove of the dovetail-shaped groove 302 and the side wall surface of the dovetail-shaped splicing bulge 301 in the thickness direction form a stop surface for limiting the movement of the dovetail-shaped splicing bulge 301 in the horizontal plane of the gasket so as to meet the stop matching of the butt joint part and the main body part in the horizontal plane.
In example 4 of a gasket for an extrusion die of the present invention, as shown in fig. 5, the difference from example 1 is that: the two butt joint parts used in pairs have different structures, and may be that one of the butt joint parts 402 is provided with a splicing bulge, the other butt joint part 403 is provided with a positioning groove, and the corresponding main body part 401 is matched with the structures of the two butt joint parts.
In example 5 of a gasket for an extrusion die of the present invention, as shown in fig. 6, the difference from example 1 is that: the two butt-joint parts used in a pair may also have a dovetail-shaped splicing projection 501 on one butt-joint part and an L-shaped splicing projection 502 on the other butt-joint part, and the structures of the two butt-joint parts are matched on the corresponding main body parts.
In example 6 of a gasket for an extrusion die of the present invention, as shown in fig. 7, the difference from example 1 is that: the abutting portion 602 is detachably connected to the main body 601, and a chamfer is provided on the abutting portion 602. The butt-joint parts 602 are located at the outer side of the discharge port, and the two butt-joint parts 602 used in pairs and the part of the main body part respectively matched with each butt-joint part 602 form a part of the discharge port of the whole gasket.
Claims (5)
1. The utility model provides a gasket for extrusion die, includes the discharge gate and sets up the chamfer in discharge gate department, and the direction of definition the gasket is unanimous with the discharge gate orientation for width direction, and the direction perpendicular with width direction in the horizontal plane that the gasket belongs to is length direction, its characterized in that: the gasket further comprises a main body part and a butt joint part detachably connected to the main body part, the butt joint part is provided with the chamfer, one of the butt joint part and the main body part is provided with a splicing bulge, and the other is provided with a positioning groove for detachably embedding the splicing bulge and enabling the butt joint part and the main body part to be in stop fit along the length direction and the width direction of the gasket.
2. A shim for an extrusion die as claimed in claim 1, wherein: the main body part is integrally U-shaped, an extending section extending towards the inside of the U-shaped opening in the length direction is arranged at the U-shaped opening end of the main body part, and the butt joint part is detachably connected with the extending section.
3. A shim for an extrusion die as claimed in claim 1 or claim 2, wherein: the bellied cross section of concatenation is the T shape, the constant head tank be with the T-slot of the protruding adaptation of concatenation.
4. A shim for an extrusion die as claimed in claim 1 or claim 2, wherein: the discharge port is formed by an interval between the butting parts.
5. A shim for an extrusion die as claimed in claim 1 or claim 2, wherein: the gasket includes two or more replacement interfaces with different chamfers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920356543.5U CN210138795U (en) | 2019-03-20 | 2019-03-20 | Gasket for extrusion die head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920356543.5U CN210138795U (en) | 2019-03-20 | 2019-03-20 | Gasket for extrusion die head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210138795U true CN210138795U (en) | 2020-03-13 |
Family
ID=69733220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920356543.5U Active CN210138795U (en) | 2019-03-20 | 2019-03-20 | Gasket for extrusion die head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210138795U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111250354A (en) * | 2020-03-18 | 2020-06-09 | 天能帅福得能源股份有限公司 | Extrusion coating type die head gasket capable of eliminating coating edge effect |
| CN113275200A (en) * | 2021-06-04 | 2021-08-20 | 深圳市曼恩斯特科技股份有限公司 | Coating gasket, coating die head and coating device |
| CN114192346A (en) * | 2021-11-10 | 2022-03-18 | 湖北亿纬动力有限公司 | Coating gasket and coating die head |
-
2019
- 2019-03-20 CN CN201920356543.5U patent/CN210138795U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111250354A (en) * | 2020-03-18 | 2020-06-09 | 天能帅福得能源股份有限公司 | Extrusion coating type die head gasket capable of eliminating coating edge effect |
| CN111250354B (en) * | 2020-03-18 | 2021-08-20 | 天能帅福得能源股份有限公司 | Extrusion coating type die head gasket capable of eliminating coating edge effect |
| CN113275200A (en) * | 2021-06-04 | 2021-08-20 | 深圳市曼恩斯特科技股份有限公司 | Coating gasket, coating die head and coating device |
| CN114192346A (en) * | 2021-11-10 | 2022-03-18 | 湖北亿纬动力有限公司 | Coating gasket and coating die head |
| CN114192346B (en) * | 2021-11-10 | 2023-10-31 | 湖北亿纬动力有限公司 | Coating gasket and coating die head |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210138795U (en) | Gasket for extrusion die head | |
| CN108421963B (en) | Cavity mold capable of being precisely positioned | |
| CN111250354B (en) | Extrusion coating type die head gasket capable of eliminating coating edge effect | |
| WO2022000660A1 (en) | Back mold core for anti-falling ceramic tile production, and combined back mold core and manufactured ceramic tile thereof | |
| CN104148238B (en) | Extrusion coated head and coating machine thereof | |
| CN208992258U (en) | A kind of adjustable cushion block structure | |
| CN209565370U (en) | A kind of patterned roll roller slot structure for hot rolling hyacinth bean type diamond plate | |
| CN204093948U (en) | A kind of thermosetting LED support continuous mould | |
| CN211538402U (en) | Lithium ion battery coating machine gasket | |
| CN211034809U (en) | Elevator guide rail bracket with opposite inclinations | |
| CN204645989U (en) | The frame section bar of slide door or window, guide rail, weather strip, tapered end, sheth, framework | |
| CN211695868U (en) | Sintering anti-blocking grate bar | |
| CN209736336U (en) | Embedded roller bearing seat assembly of rolling mill | |
| CN103464500A (en) | Front-mounted broadened aluminum profile extruding die | |
| CN103538496A (en) | Sliding rail | |
| CN107611298B (en) | Battery package seal installation structure and electric automobile | |
| CN216575208U (en) | Adjustable taper positioning die | |
| CN102202910A (en) | Structure for mounting a clip for a writing implement | |
| CN214612149U (en) | Glass kiln passageway tail brick structure | |
| CN2578012Y (en) | Metal assembled mould for flat sectional runner | |
| CN220954475U (en) | Recoverable screw cap formula ceramic tile leveling ware | |
| CN218166279U (en) | Dust remover merogenesis bag cage | |
| CN212052287U (en) | One-way basin-type support with easily-replaced rubber plate | |
| CN213260708U (en) | Pillow core die capable of improving sealing performance | |
| CN217476209U (en) | Adjustable stair prefabricated part production mold |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |