CN111389664A - Coating head assembly and coating machine - Google Patents
Coating head assembly and coating machine Download PDFInfo
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- CN111389664A CN111389664A CN202010384566.4A CN202010384566A CN111389664A CN 111389664 A CN111389664 A CN 111389664A CN 202010384566 A CN202010384566 A CN 202010384566A CN 111389664 A CN111389664 A CN 111389664A
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- coating head
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
- B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
- B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
- B05C11/1002—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves
Abstract
The invention relates to a coating head assembly and a coating machine, wherein the coating head assembly comprises a coating head body, wherein a flow channel is arranged in the coating head body and extends to the outer surface of the coating head body to form a liquid outlet; the coating head body is also provided with infusion channels communicated with the flow channel, slurry can flow into the flow channel from the infusion channels and then flows out of the coating head body from the liquid outlet to be coated on a target object, the number of the infusion channels is more than 1, and the infusion channels are arranged at intervals among the openings formed on the inner side surface of the flow channel; the arrangement direction between the openings is consistent with the length direction of the liquid outlet. In the invention, the liquid conveying channels can convey the slurry into the flow channel at the same time, and the flow rate of the slurry in each liquid conveying channel can be controlled, so that the flow rates of the slurry flowing out of each area of the liquid outlet are approximately the same, and further the flow rates of the slurry flowing out of each area of the liquid outlet are the same, and the thickness of the slurry coated on each area of the target object is the same.
Description
Technical Field
The invention relates to the field of coating equipment, in particular to a coating head assembly and a coating machine.
Background
The coating machine is used for coating a target object and is widely applied to the industries of electronics, photovoltaics, printing, textile, leather and the like, and the coating head assembly is a core element of the coating machine and is used for coating slurry on the target object. The coating head component mainly comprises a coating head body consisting of a first coating head, a second coating head and a gasket, wherein the first coating head is connected with the second coating head, a gap is formed between the first coating head and the second coating head, and the gasket is arranged in the gap between the first coating head and the second coating head to form a flow channel. In addition, the first coating head is provided with a liquid conveying channel, the liquid conveying channel extends from the outer surface of the first coating head to be communicated with the flow channel, the slurry is input into the flow channel from the inlet, and then the coating head body is discharged from the liquid outlet of the flow channel so as to be coated on a target object.
However, in actual production, there is often a problem that the slurry is not uniformly applied to the target object, which results in non-uniform thickness of the film layer finally formed on the target object.
Disclosure of Invention
In view of the above, it is necessary to provide a coating head assembly and a coater that can solve the problem of uneven slurry applied to a target object by the conventional coating head assembly.
A coating head assembly comprises a coating head body, wherein the coating head body is used for coating slurry on a target object, a flow channel is arranged in the coating head body, and the flow channel extends to the outer surface of the coating head body to form a liquid outlet; the coating head body is also provided with an infusion channel, and the infusion channel is formed on the outer surface of the coating head body and extends to be communicated with the flow channel; the slurry can flow into the flow channel from the liquid conveying channels, and then flows out of the coating head body from the liquid outlet to be coated on a target object, the number of the liquid conveying channels is more than 1, and the liquid conveying channels are arranged at intervals among openings formed on the inner side surface of the flow channel; the arrangement direction between the openings is consistent with the length direction of the liquid outlet.
In the invention, the two or more liquid conveying channels which are arranged along the length direction of the liquid outlet can be used for simultaneously conveying the slurry into the flow channel, the flow rate of the slurry in each liquid conveying pipeline can be controlled, so that the flowing speeds of the slurry from each area of the liquid outlet are approximately the same, the flow rates of the slurry flowing out from each area of the liquid outlet are the same, and the thickness of the slurry coated on each area of a target object is the same. That is, the slurry can be more uniformly coated on the target object by the arrangement mode of the embodiment, and the thickness of the film layer finally formed on the target object is more uniform.
Further, the coating head body comprises: the first coating head, the second coating head and the gasket; the gasket is provided with a first connecting surface and a second connecting surface which are arranged in an opposite way, and side surfaces which are respectively connected with the first connecting surface and the second connecting surface, wherein the side surfaces are provided with gaps, and the gaps penetrate from the first connecting surface to the second connecting surface; the first coating head is arranged on the first connecting surface, the second coating head is arranged on the second connecting surface, and the first coating head, the second coating head and the gasket are matched with each other to form the flow channel at the notch, so that only an infusion channel needs to be processed on the first coating head 1, and the production efficiency can be improved; wherein the opening of the notch on the side surface is the liquid outlet, the liquid outlet is the arrangement direction of two side walls of the notch from the length direction, and the liquid conveying channels are all arranged on the first coating head; and/or coating unit still includes the shunt, including inlet channel and liquid outlet channel, liquid outlet channel with the infusion passageway one-to-one intercommunication, inlet channel with liquid outlet channel intercommunication, inlet channel is used for meeting with the transfer pump, so that pass through the transfer pump to carry the thick liquid in the infusion channel.
Further, the liquid conveying channel penetrates from the surface of the first coating head far away from the second coating head to the surface of the first coating head close to the second coating head; and/or the infusion channel is a straight hole; and/or the number of the transfusion channels is 5; and/or the number of the liquid inlet channels is one, so that the slurry can be conveyed into all the liquid inlet channels simultaneously by using one liquid conveying pump, and the use cost of the coating machine can be reduced.
Further, the distance between the axes of two adjacent transfusion channels is equal; and/or the distance between the axis of each liquid conveying channel and the liquid outlet is equal; and/or the axis of the liquid outlet channel is superposed with the axis of the liquid conveying channel, so that the arrangement is more convenient to control the flow rate of the slurry in the liquid conveying channel.
Further, the flow divider is a multi-way joint; and/or the liquid outlet channel is communicated with the infusion channel through a hard pipeline; and/or the coating head assembly further comprises a flow controller which is arranged between the liquid outlet channel and the liquid conveying channel so as to control the flow between the liquid outlet channel and the liquid conveying channel; and/or the coating head assembly further comprises a switch valve which is arranged between the liquid outlet channel and the liquid conveying channel so as to control the connection and disconnection between the liquid outlet channel and the liquid conveying channel.
Further, the flow divider comprises a base body, the base body is provided with a first surface and a second surface which are arranged oppositely, and side surfaces which are respectively connected with the first surface and the second surface, the base body is provided with a containing groove, and the containing groove extends from the first surface to the second surface; the liquid inlet channel and the liquid outlet channel are arranged on the side surface and are communicated with the accommodating groove. The flow velocity of the slurry in each area in the accommodating groove can be uniform through the accommodating groove for caching the slurry, so that the flow velocity of the slurry flowing out from each liquid outlet pipeline is approximately the same, the problem that the flow velocity of the slurry in the liquid outlet channels close to the liquid inlet channels is large can be effectively solved, and the control of the flow velocity of the slurry in each liquid outlet channel is facilitated.
Further, the distance between the liquid inlet channel and the second surface is equal; and/or the distance between the liquid inlet channel and the second surface is smaller than the distance between the liquid outlet channel and the second surface; and/or the liquid inlet channel and the liquid outlet channel are arranged at intervals in the direction from the first surface to the second surface.
Further, the side surface includes the first side surface and the second side surface that set up back to back, the inlet channel sets up on the first side surface, liquid outlet channel all sets up on the second side surface.
Further, the length of the liquid outlet is W, the number of the liquid outlet channels is n, and the inner diameters of the liquid outlet channels are D; in the arrangement direction of the liquid outlet channels, the size of the accommodating groove is W (n-1)/n; the size of the accommodating groove is W/2n in the direction from the first side surface to the second side surface; the size of the accommodating groove in the direction from the first surface to the second surface is 4D; the distance between the axes of the two adjacent liquid outlet channels is W/n.
A coater comprising a coating head assembly as claimed in any one of the above. In the present invention, the slurry can be simultaneously fed into the flow path through each of the liquid feeding channels, and the flow rates of the slurry in each of the liquid feeding channels can be controlled so that the flow rates of the slurry flowing out of the respective regions of the liquid outlet are substantially the same, and further, the flow rates of the slurry flowing out of the respective regions of the liquid outlet are the same, whereby the thickness of the slurry applied to the respective regions of the target object is the same. That is, the slurry can be more uniformly coated on the target object by the arrangement mode of the embodiment, and the thickness of the film layer finally formed on the target object is more uniform.
Drawings
FIG. 1 is a schematic structural view of a coating head assembly provided in the present invention;
FIG. 2 is a schematic cross-sectional view of a coating head body according to the present invention;
FIG. 3 is a bottom view of a coating head body provided by the present invention;
FIG. 4 is an exploded view of a coating head body according to the present invention;
FIG. 5 is a schematic structural diagram of a first coating head of the coating head body provided by the invention;
fig. 6 is a schematic cross-sectional view of a diverter provided in accordance with the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather should be construed as broadly as the present invention is capable of modification in various respects, all without departing from the spirit and scope of the present invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
This embodiment provides a coater for applying a corresponding slurry onto a target object to form a corresponding film layer on the target object. For example, a corresponding insulating adhesive is applied to the touch film so as to form a corresponding insulating protection layer on the touch film. The coater has a coating unit, and in actual operation, the slurry is applied to a target object by the coating unit.
As shown in fig. 1 to 3, in the present embodiment, the coating head assembly 100 includes a coating head body 10, and the corresponding slurry is coated on the target object through the coating head body 10. Wherein, a flow channel 101 is arranged in the coating head body 10, and the flow channel 101 extends to the outer surface of the coating head body 10 to form a liquid outlet 102; the coating head body 10 is further provided with a liquid conveying channel 103, and the liquid conveying channel 103 is formed on the outer surface of the coating head body 10 and extends to be communicated with the flow channel 101. The feeding channel 103 can be connected to an infusion pump, and corresponding slurry is fed into the feeding channel 103 by the infusion pump, flows into the runner 101 from the feeding channel 103, and then flows out of the coating head body 10 from the liquid outlet 102 to be coated on a target object.
As shown in fig. 4 and 5, in the present embodiment, the number of the liquid supply passages 103 is 5, the liquid supply passages 103 are provided at intervals between the slurry outlets 104 formed on the inner side surface of the flow path 101, and the arrangement direction between the slurry outlets 104 is the same as the longitudinal direction of the liquid outlet 102. During the use process, the slurry can be simultaneously conveyed into the flow channel 101 through the liquid conveying channels 103, so that the influence of the shear stress on the flow speed can be weakened to a certain extent. In actual use, the flow rates of the slurries in the respective liquid supply pipes are controlled so that the flow rates of the slurries flowing out from the respective regions of the liquid outlet 102 are substantially the same, and further, the amounts of the slurries flowing out from the respective regions of the liquid outlet 102 are the same, whereby the thicknesses of the slurries applied to the respective regions of the object are the same. That is, the slurry can be more uniformly coated on the target object by the arrangement mode of the embodiment, and the thickness of the film layer finally formed on the target object is more uniform. In the present embodiment, the width of the liquid outlet 102 is small so that the regions of the liquid outlet 102 are actually the regions in the length direction of the liquid outlet 102.
In actual products, the infusion channels 103 may be arranged at intervals or may be in cross communication with each other. In this embodiment, one liquid feeding channel 103 corresponds to one slurry inlet 105 and one slurry outlet 104, wherein the slurry inlet 105 is an opening formed on the outer surface of the coating head body of the liquid feeding channel, and this arrangement makes the production and processing of the liquid feeding channel 103 easier and more convenient. In other embodiments, a single feeding channel 103 may also include a slurry inlet 105 and at least two slurry outlets 104, wherein the slurry outlets 104 are sequentially spaced along the length of the slurry outlet. It is understood that in other embodiments, the number of infusion channels 103 may be other values greater than 1.
As shown in fig. 3 and 4, in the present embodiment, the applicator head body 10 includes a first applicator head 1, a second applicator head 2, and a spacer 3. The gasket 3 has a first connecting face 31 and a second connecting face 32 which are oppositely arranged, and a side face 33 which is respectively connected with the first connecting face 31 and the second connecting face 32. The gasket 3 is further provided with a notch 34, the notch 34 is opened from the side surface 33, and the notch 34 penetrates from the first connecting surface 31 to the second connecting surface 32, at this time, the gasket 3 is in a concave shape through the notch 34.
As shown in fig. 3 and 4, the first coating head 1 is disposed on the first connecting surface 31, the second coating head 2 is disposed on the second connecting surface 32, the first coating head 1, the second coating head 2 and the gasket 3 cooperate with each other to define a flow channel 101 at the gap 34, an opening formed on the side surface 33 of the gap 34 is a liquid outlet 102, the liquid outlet 102 is an arrangement direction of two side walls of the gap 34 from a length direction, and a dimension between the first connecting surface 31 and the second connecting surface 32 is a width of the liquid outlet 102. In the present embodiment, the spacer 3 is a rectangular sheet, and the number of the side faces 33 is 4, wherein the side face 33 where the opening is located is flush with the first coating head 1 and the second coating head 2.
It can be understood that, in an actual product, the space occupied by the notch 34 is only a part of the flow channel 101, for example, the surface of the first coating head 1 for connecting with the first connecting surface 31 is provided with a first concave structure, the hollow part of the first concave structure is communicated with the notch 34, and the space occupied by the flow channel 101 includes the space of the notch 34 and the space of the hollow part of the first concave structure. Similarly, the surface of the second coating head 2 that is used to contact the second connection surface 32 may be provided with a corresponding second recess structure, so that the second recess structure becomes a part of the flow channel 101 after the coating head body 10 is assembled. Of course, in practical products, the space occupied by the runner 101 may be the space occupied by only the notch 34.
As shown in fig. 4 and 5, in the present embodiment, the liquid supply channels 103 are all provided on the first coating head 1, so that the liquid supply channels 103 only need to be processed on the first coating head 1, and the production efficiency can be improved. In the present embodiment, the liquid feeding channel 103 penetrates from the surface of the first coating head 1 away from the second coating head 2 to the surface of the first coating head 1 close to the second coating head 2. At this time, the slurry inlet 105 is formed on the surface of the first coating head 1 away from the second coating head 2, and the slurry outlet 104 is formed on the surface of the first coating head 1 close to the second coating head 2.
Meanwhile, in order to facilitate the production and processing of the infusion channel 103, in the present embodiment, the infusion channel 103 is a straight hole, and the cross-sectional radius of each region is equal everywhere in the axial direction thereof. Of course, in other embodiments, the liquid feeding channel 103 may be provided only on the second coating head 2, or the first coating head 1 and the second coating head 2 may be provided with corresponding liquid feeding channels 103.
In this embodiment, the distance between the axis of each liquid feeding channel 103 and the liquid outlet 102 is the same, and the distance between the axes of two adjacent liquid feeding channels 103 is the same, so that the flow rate of each area at the liquid outlet 102 can be controlled by controlling the flow rate of the slurry in the liquid feeding channels 103 more conveniently. In addition, in practical production, the flow rate in each region of the liquid outlet 102 can be more uniform by reducing the thickness of the gasket 3, wherein the thickness of the gasket 3 refers to the distance between the first connecting surface 31 and the second connecting surface 32.
As shown in fig. 1, in the present embodiment, the coating module further includes a flow divider 20, the flow divider 20 has a liquid inlet channel 4 and a liquid outlet channel 5 which are communicated with each other, wherein the liquid outlet channels 5 are communicated with the liquid conveying channels 103 in a one-to-one correspondence, and the liquid inlet channel 4 is used for being connected with a liquid conveying pump. In this embodiment, the number of the liquid feeding passages 4 is 1, so that the slurry can be fed to all the liquid feeding passages 103 at the same time by one liquid feeding pump, and the use cost of the coating module can be reduced. It is understood that in some embodiments, the number of the liquid inlet channels 4 is 2 or more, and in this case, the number of the liquid inlet channels 4 may be greater than, equal to or less than the number of the liquid outlet channels 5.
In this embodiment, the outlet passage 5 and the liquid feeding passage 103 are communicated through the rigid pipe 30, so that the flow rate of the slurry in the liquid feeding passage 103 can be controlled more easily. In order to facilitate the production process, in this embodiment, the liquid outlet channel 5 and the liquid inlet channel 4 are both straight holes, and the cross-sectional radii of the areas of the liquid outlet channel 5 and the liquid inlet channel 4 are equal everywhere in the respective axial directions. In addition, in the embodiment, the axis of the liquid outlet channel 5 is coincident with the axis of the liquid conveying channel 103, so that the flow rate of the slurry in the liquid conveying channel 103 can be controlled more conveniently.
As shown in fig. 1, in this embodiment, the coating head assembly 100 further includes a flow controller 40. The flow controller 40 is arranged between the liquid outlet channel 5 and the liquid conveying channel 103 and is used for controlling the flow between the liquid outlet channel 5 and the liquid conveying channel 103 so as to adjust the flow rate in the liquid conveying channel 103, wherein the flow controller 40 is arranged on the hard pipeline 30 between the flow divider 20 and the coating head body 10. In this embodiment, each outlet channel 5 and the feeding channel 103 is provided with an understandably arranged flow controller 40, which in practical products can be a flow control device with a flow meter to facilitate the operator to adjust the flow rate of the slurry in each feeding channel 103.
As shown in fig. 1, in this embodiment, the coating head assembly 100 further includes an on-off valve 50. The switch valve 50 is arranged between the liquid outlet channel 5 and the liquid conveying channel 103 and is used for controlling the connection and disconnection between the liquid outlet channel 5 and the liquid conveying channel 103, so that a user can control the number and the position of the liquid conveying channels 103 which can input the serous fluid into the flow channel 101 according to actual requirements. In the present embodiment, the on-off valve 50 is installed on the hard pipe 30 between the flow divider 20 and the coating head body 10.
As shown in fig. 1 and 6, in the present embodiment, the flow divider 20 includes a base 6 and a cover 7, wherein, in fig. 1, the cover 7 is a perspective view to facilitate understanding of the structure inside the base 6. In the present embodiment, the base 6 has a first surface 61 and a second surface 62 which are oppositely arranged, and a side surface 63 which is respectively connected with the first surface 61 and the second surface 62. Still be equipped with holding tank 64 on the base member 6, holding tank 64 is extended to second surface 62 by first surface 61, and inlet channel 4 and outlet channel 5 all set up on side surface 63 to all communicate with holding tank 64. In use, the infusion pump first delivers the slurry into the holding tank 64 for buffering, and then flows from the liquid outlet channel 5 communicated with the holding tank 64 to the infusion channel 103. The flow velocity of the slurry in each area of the accommodating groove 64 can be uniform through the buffer of the accommodating groove 64, so that the flow velocity of the slurry flowing out from each liquid outlet pipeline is approximately the same, the problem of high flow velocity of the slurry in the liquid outlet channels 5 close to the liquid inlet channel 4 can be effectively solved, and the flow velocity control of the slurry in each liquid outlet channel 5 is facilitated. It will be appreciated that in some embodiments, the substrate 6 may be surrounded by a plurality of plates. In addition, in the present embodiment, the cover plate 7 is provided on the first surface 61 of the base 6 and closes the holding tank 64 at the first surface 61, so that contamination of the slurry in the holding tank 64 by foreign matters can be prevented. It will be appreciated that in some embodiments, the cover plate 7 and the base 6 may also be of unitary construction.
In this embodiment, as shown in fig. 6, the distance between the liquid inlet channel 4 and the second surface 62 is smaller than the distance between the liquid outlet channel 5 and the second surface 62, so that the slurry stays in the holding tank 64 for a longer time, and the flow rate of the slurry in each area of the holding tank 64 is more uniform. In addition, in this embodiment, the liquid inlet channel 4 and the liquid outlet channel 5 are spaced from each other in the direction from the first surface 61 to the second surface 62, so as to further increase the residence time of the slurry in the holding tank 64. In addition, in this embodiment, the liquid outlet channel 5 and the liquid inlet channel 4 are both straight holes, so as to facilitate production and processing.
As shown in fig. 1 and fig. 6, in the present embodiment, the base 6 has a rectangular parallelepiped structure, and the side surface 63 includes a first side surface 631, a third side surface 633, a second side surface 632, and a fourth side surface 634, which are sequentially connected to each other, wherein the first side surface 63 and the second side surface 63 are disposed opposite to each other, and the third side surface 63 and the fourth side surface 63 are disposed opposite to each other. In the present embodiment, the inlet channel 4 is opened on the first side surface 631, and the outlet channel 5 is opened on the second side surface 632. In the present embodiment, the liquid outlet channels 5 are sequentially arranged along the direction from the third side surface 633 to the fourth side surface 634, and the distance between the axis of each liquid outlet channel 5 and the second surface 62 is equal. It will be appreciated that in other embodiments, the substrate 6 may be an object having a cross-section of other shapes, such as a hexahedron or the like.
In addition, as shown in fig. 1, in the present embodiment, the accommodation groove 64 is a rectangular parallelepiped groove. Assuming that the length of the liquid outlet 102 is W, the number of the liquid outlet channels 5 is n, and the inner diameter of the liquid outlet channel 5 is D, the length of the accommodating groove 64 is W (n-1)/n, the width of the accommodating groove 64 is W/2n, and the depth of the accommodating groove 64 is 4D. Wherein, the length of the receiving groove 64 refers to the dimension of the receiving groove 64 in the arrangement direction of the liquid outlet channel 5, the length of the receiving groove 64 refers to the dimension of the receiving groove 64 in the direction from the third side surface 633 to the fourth side surface 634, the width of the receiving groove 64 refers to the dimension of the receiving groove 64 in the direction from the first side surface 631 to the second side surface 632, and the depth of the receiving groove 64 refers to the dimension of the receiving groove 64 in the direction from the first surface 61 to the second surface 62; w is the length of the liquid outlet 102, n is the number of the liquid outlet channels 5, and D is the inner diameter of the liquid outlet channel 5. By the arrangement, the thickness of the area of more than 94.9 percent of the slurry coated on the target object can meet the preset requirement, and the working performance of the coating machine is improved.
It will be appreciated that in some embodiments, the shunt 20 may be configured otherwise, for example, the shunt 20 may be configured directly as a commercially available multi-port connector, with one port of the connector communicating with an infusion pump and the other port communicating with the infusion channel 103.
In some embodiments, the shunt 20 may not be disposed in the coating head assembly 100, and the slurry may be directly delivered into the fluid delivery channel 103 by using an infusion pump, wherein the number of the infusion pumps is the same as that of the fluid delivery channel 103, and the infusion pumps correspond to the fluid delivery channel 103 one by one.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A coating head assembly comprises a coating head body, wherein the coating head body is used for coating slurry on a target object, a flow channel is arranged in the coating head body, and the flow channel extends to the outer surface of the coating head body to form a liquid outlet; the coating head body is also provided with an infusion channel, and the infusion channel is formed on the outer surface of the coating head body and extends to be communicated with the flow channel; the slurry can flow into the flow channel from the liquid conveying channels and then flows out of the coating head body from the liquid outlet to be coated on a target object, and the slurry is characterized in that the number of the liquid conveying channels is more than 1, and the liquid conveying channels are arranged at intervals among slurry outlets formed on the inner side surface of the flow channel; the arrangement direction between the slurry outlets is consistent with the length direction of the liquid outlets.
2. The coating head assembly of claim 1 wherein the coating head body comprises: the first coating head, the second coating head and the gasket; the gasket is provided with a first connecting surface and a second connecting surface which are arranged in an opposite way, and side surfaces which are respectively connected with the first connecting surface and the second connecting surface, wherein the side surfaces are provided with gaps, and the gaps penetrate from the first connecting surface to the second connecting surface; the first coating head is arranged on the first connecting surface, the second coating head is arranged on the second connecting surface, and the first coating head, the second coating head and the gasket are matched with each other to form the flow channel at the notch; wherein the opening of the notch on the side surface is the liquid outlet, the liquid outlet is the arrangement direction of two side walls of the notch from the length direction, and the liquid conveying channels are all arranged on the first coating head; and/or
Coating unit still includes the shunt, including inlet channel and liquid outlet channel, liquid outlet channel with the infusion passageway one-to-one intercommunication, inlet channel with liquid outlet channel intercommunication, inlet channel is used for meeting with the transfer pump, so that pass through the transfer pump to carry the thick liquid in the infusion channel.
3. The coating head assembly of claim 2 wherein the feed channel runs from a surface of the first coating head distal to the second coating head to a surface of the first coating head proximal to the second coating head; and/or
The infusion channel is a straight hole; and/or
The number of the transfusion channels is 5; and/or
The number of the liquid inlet channels is one.
4. The coating head assembly of claim 2 wherein the spacing between the axes of adjacent two of the infusion channels is equal; and/or
The distance between the axis of each liquid conveying channel and the liquid outlet is equal; and/or
The axis of the liquid outlet channel is coincident with the axis of the infusion channel.
5. The applicator head assembly of claim 4, wherein the flow diverter is a multi-pass joint; and/or
The liquid outlet channel is communicated with the infusion channel through a hard pipeline; and/or
The coating head assembly also comprises a flow controller which is arranged between the liquid outlet channel and the liquid conveying channel so as to control the flow between the liquid outlet channel and the liquid conveying channel; and/or
The coating head assembly further comprises a switch valve which is arranged between the liquid outlet channel and the liquid conveying channel so as to control the connection and disconnection between the liquid outlet channel and the liquid conveying channel.
6. The coating head assembly of claim 4 wherein the flow diverter includes a base having first and second oppositely disposed surfaces and side surfaces interfacing with the first and second surfaces, respectively; the substrate is provided with an accommodating groove, and the accommodating groove is formed in the first surface and extends towards the second surface;
the liquid inlet channel and the liquid outlet channel are arranged on the side surface and are communicated with the accommodating groove.
7. The coating head assembly of claim 6 wherein the feed channels and the second surface are equally spaced; and/or
The distance between the liquid inlet channel and the second surface is smaller than the distance between the liquid outlet channel and the second surface; and/or
The liquid inlet channel and the liquid outlet channel are arranged at intervals in the direction from the first surface to the second surface.
8. The coating head assembly of claim 6 wherein the side surfaces comprise first and second oppositely disposed side surfaces, the liquid inlet channel being disposed on the first side surface and the liquid outlet channel being disposed on the second side surface.
9. The applicator head assembly of claim 8, wherein the length of the liquid outlets is W, the number of the liquid outlet channels is n, and the inner diameters of the liquid outlet channels are D;
in the arrangement direction of the liquid outlet channels, the size of the accommodating groove is W (n-1)/n;
the size of the accommodating groove is W/2n in the direction from the first side surface to the second side surface;
the size of the accommodating groove in the direction from the first surface to the second surface is 4D;
the distance between the axes of the two adjacent liquid outlet channels is W/n.
10. A coater comprising a coating head assembly according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010384566.4A CN111389664A (en) | 2020-05-08 | 2020-05-08 | Coating head assembly and coating machine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010384566.4A CN111389664A (en) | 2020-05-08 | 2020-05-08 | Coating head assembly and coating machine |
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| CN111389664A true CN111389664A (en) | 2020-07-10 |
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| CN202010384566.4A Pending CN111389664A (en) | 2020-05-08 | 2020-05-08 | Coating head assembly and coating machine |
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|---|---|
| CN (1) | CN111389664A (en) |
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Application publication date: 20200710 |