CN210131747U - Coating head - Google Patents
Coating head Download PDFInfo
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- CN210131747U CN210131747U CN201920555988.6U CN201920555988U CN210131747U CN 210131747 U CN210131747 U CN 210131747U CN 201920555988 U CN201920555988 U CN 201920555988U CN 210131747 U CN210131747 U CN 210131747U
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- arc surface
- die head
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Abstract
The utility model provides a coating head, which comprises an upper die head and a lower die head, wherein the upper die head and the lower die head are detachably connected, a discharge gap is arranged between the front ends of the upper die head and the lower die head, a feed inlet is arranged at the rear side of the lower die head, a slurry cavity is concavely arranged at the upper side of the lower die head, the feed inlet is communicated with the slurry cavity, the rear side wall of the slurry cavity comprises a first arc surface and two second arc surfaces which are respectively connected with the two ends of the first arc surface, and the first arc surface is in gentle transitional connection with the second arc surfaces; the left and right end enclosing walls of the slurry cavity are third arc surfaces, the third arc surfaces are connected with one ends, far away from the first arc surfaces, of the second arc surfaces, and the third arc surfaces are in gentle transitional connection with the front side enclosing walls and the rear side enclosing walls of the slurry cavity respectively. The rear side leg and the left and right ends of the slurry cavity are arc surfaces, and the side walls of the slurry cavity are in smooth transition, so that fluid retention dead angles caused by sudden change transition are avoided, the problem that the coating head needs to be detached during cleaning is also avoided, the coating head is more convenient to clean, and the production efficiency is improved.
Description
Technical Field
The utility model belongs to the technical field of coating machine equipment, more specifically say, relate to a scribble leftover of bolt of cloth.
Background
The coating process is widely applied to the fields of light industry papermaking, plastic processing, information material, battery manufacturing and the like, and the quality of the coating quality greatly influences the quality of products. On one hand, after the existing coating machine works for a period of time, because the slurry cavity has a flowing dead angle, the coating liquid in the slurry cavity can be solidified, thereby affecting the coating quality; on the other hand, when the coating process is changed, attention should be paid to avoid the defects of the residual liquid of the previous coating liquid on the subsequent coating; cleaning of the coating head is therefore important.
At present, when the coating head is cleaned, the coating head needs to be detached from a coating machine firstly, then the coating head is opened for manual cleaning, the operation is complex, the time consumption for detaching is long, the production efficiency is reduced, and the production cost is increased.
Disclosure of Invention
An object of the utility model is to provide a scribble leftover of bolt of cloth to the leftover of bolt of cloth that exists is not convenient for abluent technical problem among the solution prior art.
In order to achieve the above object, the utility model adopts the following technical scheme: the coating head comprises an upper die head and a lower die head, wherein the upper die head and the lower die head are detachably connected, a discharge gap is arranged between the front end of the upper die head and the front end of the lower die head, a feed inlet is formed in the rear side of the lower die head, the upper surface of the lower die head is a plane, a slurry cavity for distributing coating liquid is concavely formed in the upper side of the lower die head, and the feed inlet is communicated with the slurry cavity, and the coating head is characterized in that: the rear side wall of the slurry cavity comprises a first arc surface and two second arc surfaces which are respectively connected to two ends of the first arc surface, and the first arc surface is in gentle transition connection with the second arc surfaces;
the left and right end enclosing walls of the slurry cavity are third arc surfaces, the third arc surfaces are connected with one end, far away from the first arc surface, of the second arc surface, and the third arc surfaces are in gentle transition connection with the front side enclosing wall and the rear side enclosing wall of the slurry cavity respectively;
the curvatures from the first circular arc surface to the third circular arc surface are sequentially increased.
Furthermore, the tangent of the end part of the first arc surface adjacent to the second arc surface is overlapped with the tangent of the end part of the second arc surface adjacent to the first arc surface;
and the end part of the second arc surface, which is adjacent to the third arc surface, is superposed with the tangent line of the end part of the third arc surface, which is adjacent to the second arc surface.
Further, the areas of the left end and the right end of the slurry cavity, which correspond to the third arc surface, are respectively communicated with the two evacuation ports of the upper die head.
Furthermore, areas, corresponding to the third arc surface, at the left end and the right end of the slurry cavity are set to be necking, and the radius of the third arc surface is the same as that of the emptying port.
Furthermore, the third arc surface is connected with the second arc surface through a fourth arc surface, and the circle center of the fourth arc surface is located on the outer side of the slurry cavity.
Further, the bottom wall of the slurry cavity is a circular arc surface.
Further, the depth of the slurry chamber becomes gradually shallow from the middle to the periphery.
Further, the feed inlet is arranged on the central line of the left and right directions of the slurry cavity.
Further, one end of the feeding hole, which is communicated with the slurry cavity, is located at the bottom of the rear side wall of the slurry cavity.
Further, still include concave locate the vice chamber of the upside of die head down, vice chamber is located the place ahead in thick liquids chamber and the interval sets up, vice chamber intercommunication thick liquids chamber with ejection of compact clearance.
The utility model provides a scribble leftover of bolt of cloth's beneficial effect lies in: compared with the prior art, when the coating head is cleaned, cleaning liquid is input into the slurry cavity from the feed inlet, and the cleaning liquid in the slurry cavity is pressurized at the same time, so that the cleaning liquid performs pressure washing on the slurry cavity, and the washed cleaning liquid flows out from the discharge gap; the rear side surrounding wall and the left and right two end surrounding walls of the slurry cavity are all arc surfaces, and the side surrounding walls of the slurry cavity are in smooth transition, so that fluid retention dead corners caused by abrupt transition are avoided, and the flowing rule of the fluid is better met, so that more coating liquid is prevented from being deposited and solidified at the dead corners, the waste of raw materials is reduced, the production cost is reduced, the problem that the dead corners cannot be thoroughly cleaned by cleaning liquid is avoided, and the cleaning quality of a coating head is improved; meanwhile, the scouring force of the fluid on the wall of the slurry cavity is maximum in the flowing process, so that the cleaning fluid can scour the stain on the wall of the slurry cavity completely, the coating head does not need to be cleaned after being opened, the problem that the coating head needs to be detached during cleaning is avoided, the coating head is more convenient to clean, and the production efficiency is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.
Fig. 1 is a schematic structural diagram of a coating head provided in an embodiment of the present invention;
FIG. 2 is a schematic diagram of the structure of the lower die of FIG. 1;
FIG. 3 is a sectional view taken along line A-A of FIG. 1;
fig. 4 is a sectional structural view taken along line B-B in fig. 1.
Wherein, in the figures, the respective reference numerals:
1. an upper die head; 11. emptying the air;
2. a lower die head; 21. a feed inlet;
22. a slurry chamber; 221. a first arc surface; 222. a second arc surface; 223. a third arc surface;
224. a fourth arc surface;
23. a secondary chamber;
3. and (7) a gasket.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
Referring to fig. 1 to 4 together, the coating head of the present invention will now be described. The coating head comprises an upper die head 1 and a lower die head 2, wherein the upper die head 1 is detachably connected with the lower die head 2, a discharge gap is arranged between the front end of the upper die head 1 and the front end of the lower die head 2, a feed inlet 21 is formed in the rear side of the lower die head 2, the upper surface of the lower die head 2 is a plane, a slurry cavity 22 for distributing coating liquid is concavely formed in the upper side of the lower die head 2, the feed inlet 21 is communicated with the slurry cavity 22, the rear side wall of the slurry cavity 22 comprises a first arc surface 221 and two second arc surfaces 222 respectively connected to two ends of the first arc surface 221, and the first arc surface 221 is in gentle transitional connection with the second arc surfaces 222;
the surrounding walls at the left end and the right end of the slurry cavity 22 are third arc surfaces 223, the third arc surfaces 223 are connected with one end, far away from the first arc surface 221, of the second arc surface 222, and the third arc surfaces 223 are in smooth transition connection with the surrounding wall at the front side and the surrounding wall at the rear side of the slurry cavity 22 respectively;
the curvatures of the first circular arc surface 221 to the third circular arc surface 223 increase in order.
Compared with the prior art, the coating head provided by the utility model has the advantages that when the coating head is cleaned, cleaning liquid is input into the slurry cavity 22 from the feed inlet 21, and meanwhile, the cleaning liquid in the slurry cavity 22 is pressurized, so that the cleaning liquid performs pressure washing on the slurry cavity 22, and the washed cleaning liquid flows out from the discharge gap; the rear side surrounding wall and the left and right two end surrounding walls of the slurry cavity 22 are all arc surfaces, and the side surrounding walls of the slurry cavity 22 are in smooth transition, so that fluid retention dead corners caused by abrupt transition are avoided, and the flowing rule of the fluid is better met, so that more coating liquid is prevented from being deposited and solidified at the dead corners, the waste of raw materials is reduced, the production cost is reduced, the problem that the dead corners cannot be thoroughly cleaned by cleaning liquid is avoided, and the cleaning quality of a coating head is improved; meanwhile, the scouring force of the fluid on the surrounding wall of the slurry cavity 22 is maximum in the flowing process, so that the cleaning fluid can scour the stain on the surrounding wall of the slurry cavity 22 completely, the coating head does not need to be cleaned after being opened, the problem that the coating head needs to be detached when being cleaned is avoided, the coating head is more convenient to clean, and the production efficiency is improved.
Preferably, the tangent of the end of the first arc surface 221 adjacent to the second arc surface 222 coincides with the tangent of the end of the second arc surface 222 adjacent to the first arc surface 221; the connection between the first arc surface 221 and the second arc surface 222 is smoother, so that the flow of the fluid at the position is smoother, the coating liquid is prevented from depositing at the position, the cleaning speed is increased, and the cleaning efficiency is improved.
Preferably, the end of the second arc surface 222 adjacent to the third arc surface 223 coincides with the tangent of the end of the third arc surface 223 adjacent to the second arc surface 222; the connection between the second arc surface 222 and the third arc surface 223 is smoother, so that the flow of the fluid at the position is smoother, the coating liquid is prevented from depositing at the position, the cleaning speed is increased, and the cleaning efficiency is improved.
Specifically, the coating head is provided with a gasket 3, the gasket 3 is provided with an opening, and the discharge gap is formed by enclosing the side wall of the opening, the upper die head 1 and the lower die head 2. The gasket can seal the joint of the upper die head 1 and the lower die head 2; with the lateral wall of opening part, go up the die head 1 and the lower die head 2 enclose the department of closing as ejection of compact clearance, simple structure conveniently adjusts ejection of compact clearance's interval and the coating to the substrate is handled.
Further, referring to fig. 1 and fig. 3 together, as a specific embodiment of the coating head provided by the present invention, the areas corresponding to the third arc surfaces 223 at the left and right ends of the slurry cavity 22 are respectively communicated with the two evacuation ports 11 of the upper die head 1; the cleaning liquid can be discharged through the emptying port 11, so that the emptying port 11 can be cleaned, and the problem that the coating quality is influenced because the gas in the coating liquid cannot be discharged after the emptying port 11 is blocked is avoided; the emptying ports 11 are located at the left end and the right end of the slurry cavity 22, so that the whole slurry cavity 22 can be completely cleaned, partial cleaning liquid is prevented from being discharged from the emptying ports 11 just after flowing through the emptying ports 11 when the emptying ports 11 are located in the middle of the slurry cavity 22, and the cleaning quality is improved.
Further, referring to fig. 1 to 3, as a specific embodiment of the coating head of the present invention, the areas corresponding to the third arc surfaces 223 at the left and right ends of the slurry cavity 22 are set as necking, and the radius of the third arc surfaces 223 is the same as the radius of the evacuation port 11; the cleaning liquid can more conveniently flow to the emptying port 11, and the cleaning liquid is prevented from continuously brushing the lower surface around the emptying port 11 of the upper die head 1.
Further, referring to fig. 2 and fig. 4 together, as a specific embodiment of the coating head provided by the present invention, the third arc surface 223 is connected to the second arc surface 222 through a fourth arc surface 224, and a center of the fourth arc surface 224 is located outside the slurry cavity 22; the fluid cleaning device has the advantages that the fluid cleaning device is more consistent with the flowing rule of fluid, the flowing of the fluid is smoother, the detention dead angle is avoided, the cleaning difficulty is reduced, the cleaning speed is increased, and the production efficiency is improved.
Further, referring to fig. 4, as a specific embodiment of the coating head provided by the present invention, the bottom wall of the slurry cavity 22 is an arc surface; thereby avoid the too big preparation time of extension coating of the volume in thick liquids chamber 22, also can avoid the coating liquid to deposit the solidification on the diapire, make the washing more thorough, avoid causing the influence to the coating of next time.
Further, referring to fig. 3 and 4, as a specific embodiment of the coating head of the present invention, the depth of the slurry cavity 22 gradually becomes shallower from the middle to the periphery; reduce the volume of thick liquids chamber 22, make the coating liquid easily flow to ejection of compact clearance, avoid thick liquids chamber 22 to hold too much coating liquid and cause the waste, the discharge of the washing liquid of also being convenient for, simple structure, the processing of being convenient for.
Further, referring to fig. 1, fig. 2 and fig. 4, as a specific embodiment of the coating head of the present invention, the feed inlet 21 is disposed on a center line of the slurry chamber 22 in the left-right direction; make the scavenging solution flow to the end about thick liquids chamber 22 from feed inlet 21 simultaneously and wash, avoid the not good condition of one end cleaning performance wherein, thick liquids chamber 22 bilateral symmetry simultaneously, the processing of being convenient for.
Specifically, one end of the feed port 21, which is communicated with the slurry chamber 22, is located at the bottom of the rear side wall of the slurry chamber 22; the coating liquid is prevented from depositing at the bottom of the slurry cavity 22, and the cleaning of the coating head is more convenient.
Further, please refer to fig. 2 and fig. 4 together, as a specific embodiment of the coating head of the present invention, further comprising an auxiliary cavity 23 concavely disposed on the upper side of the lower die head 2, wherein the auxiliary cavity 23 is disposed in front of the slurry cavity 22 and spaced apart from the slurry cavity 22, and the auxiliary cavity 23 communicates with the slurry cavity 22 and the discharge gap; the auxiliary cavity 23 is used for carrying out secondary pressure equalizing on the slurry in the slurry cavity 22, so that the coating uniformity is improved, the coating liquid can better flow to the discharge gap, and the coating of the discharge gap is not left or right interrupted.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The coating head comprises an upper die head and a lower die head, the upper die head and the lower die head are detachably connected, a discharge gap is arranged between the front end of the upper die head and the front end of the lower die head, a feed inlet is arranged on the rear side of the lower die head, the upper surface of the lower die head is a plane, a slurry cavity used for distributing coating liquid is concavely arranged on the upper side of the lower die head, and the feed inlet is communicated with the slurry cavity, and the coating head is characterized in that: the rear side wall of the slurry cavity comprises a first arc surface and two second arc surfaces which are respectively connected to two ends of the first arc surface, and the first arc surface is in gentle transition connection with the second arc surfaces;
the left and right end enclosing walls of the slurry cavity are third arc surfaces, the third arc surfaces are connected with one end, far away from the first arc surface, of the second arc surface, and the third arc surfaces are in gentle transition connection with the front side enclosing wall and the rear side enclosing wall of the slurry cavity respectively;
the curvatures from the first circular arc surface to the third circular arc surface are sequentially increased.
2. The coating head of claim 1 wherein: the end part of the first arc surface adjacent to the second arc surface is superposed with the tangent line of the end part of the second arc surface adjacent to the first arc surface;
and the end part of the second arc surface, which is adjacent to the third arc surface, is superposed with the tangent line of the end part of the third arc surface, which is adjacent to the second arc surface.
3. The coating head of claim 1 wherein: and the areas of the left end and the right end of the slurry cavity, which correspond to the third arc surface, are respectively communicated with the two evacuation ports of the upper die head.
4. The coating head of claim 3 wherein: areas, corresponding to the third arc surfaces, of the left end and the right end of the slurry cavity are set to be necking, and the radius of the third arc surfaces is the same as that of the emptying port.
5. The coating head of claim 4 wherein: the third arc surface is connected with the second arc surface through a fourth arc surface, and the circle center of the fourth arc surface is located on the outer side of the slurry cavity.
6. The coating head of claim 5 wherein: the bottom wall of the slurry cavity is an arc surface.
7. The coating head of claim 6 wherein: the depth of the slurry cavity becomes gradually shallow from the middle to the periphery.
8. The coating head of claim 7 wherein: the feed inlet is arranged on the central line of the left and right directions of the slurry cavity.
9. Coating head according to any of claims 1 to 8, characterized in that: one end of the feeding hole communicated with the slurry cavity is located at the bottom of the rear side wall of the slurry cavity.
10. Coating head according to any of claims 1 to 8, characterized in that: the die head is characterized by further comprising an auxiliary cavity concavely arranged on the upper side of the lower die head, the auxiliary cavity is located in front of the slurry cavity and arranged at intervals, and the auxiliary cavity is communicated with the slurry cavity and the discharge gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920555988.6U CN210131747U (en) | 2019-04-23 | 2019-04-23 | Coating head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920555988.6U CN210131747U (en) | 2019-04-23 | 2019-04-23 | Coating head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210131747U true CN210131747U (en) | 2020-03-10 |
Family
ID=69703511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920555988.6U Active CN210131747U (en) | 2019-04-23 | 2019-04-23 | Coating head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210131747U (en) |
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2019
- 2019-04-23 CN CN201920555988.6U patent/CN210131747U/en active Active
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Address after: No.3 workshop 101-201, area C, third industrial zone, Zhukeng community, Longtian street, Pingshan District, Shenzhen, Guangdong 518000 Patentee after: Shenzhen manest Technology Co.,Ltd. Address before: 518000 26 2A of Tianxin village and rich industrial area, Shijing street, Shenzhen, Guangdong. Patentee before: SHENZHEN MANST TECHNOLOGY Co.,Ltd. |