A staggered splicing lip paint

Abstract

The present invention provides a staggered spliced ​​lip coating, comprising at least two front lips spliced ​​left and right, at least two rear lips spliced ​​left and right, and a first lip piece with a notch at the lower end, the first lip piece being clamped and fixed between each front lip and rear lip; at least one first liquid guide groove is opened on the inner surface of the front lip, and a second liquid guide groove is opened on the inner surface of the rear lip, each first liquid guide groove and the second liquid guide groove are staggered, and the orthographic projection of each second liquid guide groove on the inner surface of the front lip covers the inner surface area of ​​the front lip between the two first liquid guide grooves adjacent to the orthographic projection; the joint between any two adjacent front lips is staggered with the joint between any two adjacent rear lips; the rear lip is opened with a second liquid inlet hole communicating with the second liquid guide groove, and the front lip or the rear lip is opened with a first liquid inlet hole communicating with the first liquid guide groove. The staggered spliced ​​lip coating of the present invention has no slurry shortage at the joint, and the substrate is not easy to wrinkle, and a wider lip coating structure can be formed by splicing.

Description

Technical Field

[0001] The invention relates to a slurry coating device, in particular to a staggered splicing type coating lip. Background Art

[0002] Coating is a technology that applies slurry to a film substrate, allowing the tensioned substrate to pass through the discharging lip, and the slurry is coated on the surface of the substrate according to the shape of the discharging notch of the lip piece in the coating lip. The existing coating lip requires high processing accuracy and cannot be integrally molded to process a wider coating lip. The width of the coating lip is too large, and the coating accuracy becomes worse as it approaches the left and right ends, and the accuracy cannot be guaranteed. In order to achieve coating of a wider substrate, multiple narrow coating lips are used to be spliced ​​with high precision on the left and right sides to extend the width of the coating lip. The coating lip is divided into a front lip and a rear lip. When multiple coating lips are spliced, there are seams between adjacent front lips and adjacent rear lips. When designing the coating lip, a liquid guide groove is often opened horizontally on the inner surface of the front lip or the rear lip. In order to prevent the slurry from flowing out from the left and right ends of the coating lip, the liquid guide groove cannot be a through-groove structure that penetrates the corresponding front lip or rear lip. This will result in no slurry passing through the lip discharge notch corresponding to the seam of the spliced ​​coating lip, unless the discharge notch of the lip is staggered at the seam, which limits the design of the coating pattern; in addition, since the seams between the front lips and the seams between the rear lips are generally aligned and spliced, when the film substrate passes through, it is easy to bulge and wrinkle at the seam, and in severe cases, the substrate is scratched. Therefore, there is an urgent need for a staggered spliced ​​coating lip that does not lack slurry at the seam and the substrate is not easy to wrinkle. Summary of the invention

[0003] The purpose of the present invention is to overcome the shortcomings of the above-mentioned traditional technology and provide a staggered splicing lip balm with no lack of slurry at the joints and no wrinkles on the base material.

[0004] The objective of the present invention is achieved through the following technical measures: a staggered spliced ​​lip coating, comprising at least two front lips spliced ​​left and right, at least two rear lips spliced ​​left and right, and a first lip piece with a notch at the lower end, the first lip piece being clamped and fixed between each front lip and the rear lip; at least one first liquid conducting groove is opened on the inner surface of the front lip, and the second liquid conducting grooves corresponding to the number of the first liquid conducting grooves are opened on the inner surface of the rear lip, each first liquid conducting groove and the second liquid conducting groove are staggered, and the orthographic projection of each second liquid conducting groove on the inner surface of the front lip covers the inner surface area of ​​the front lip between two first liquid conducting grooves adjacent to the orthographic projection; the seam between any two adjacent front lips is staggered with the seam between any two adjacent rear lips; the rear lip is opened with a second liquid inlet hole communicating with the second liquid conducting groove, and the front lip or the rear lip is opened with a first liquid inlet hole communicating with the first liquid conducting groove.

[0005] Preferably, the first liquid inlet hole is opened in the rear lip, and a conducting hole is opened at the first lip corresponding to the first liquid inlet hole, and the first liquid inlet hole is connected to the first liquid guide groove through the conducting hole. Since the rear lip is generally thicker, the first liquid inlet hole and the second liquid inlet hole are both set on the thicker rear lip, which is convenient for processing, and the feed pipeline is uniformly set on the rear lip for easy control.

[0006] Preferably, a fixing pin is provided on the inner surface of the rear lip, and also includes a fixing screw matching the fixing pin. Mounting holes for the fixing pin to pass through are opened at corresponding positions on the inner surface of the front lip and the first lip piece. The front lip and the first lip piece are fixed to the rear lip by tightening the fixing screws in the fixing pin.

[0007] Preferably, an I-shaped groove is provided at the joint of the upper surfaces of the two rear lips, and an I-shaped piece matching the I-shaped groove is included, and the two adjacent rear lips are fixedly connected to the I-shaped piece in the corresponding I-shaped groove by bolts.

[0008] The cooperation between the I-shaped groove and the I-shaped piece can avoid relative movement of the two assembled rear lips, thereby ensuring the structural stability between the adjacent rear lips after assembly.

[0009] Preferably, it also includes a mesh-shaped piece, and two adjacent rear lips are fixedly connected to the mesh-shaped piece fixed to the outer surfaces of the two corresponding rear lips by bolts.

[0010] The mesh-shaped parts are used to assist fixation and improve the structural stability of the rear lip after assembly.

[0011] Preferably, it also includes a second lip with a notch at the lower end, a baffle is provided between the first lip and the second lip, the lower ends of the first lip, the second lip, the baffle, the front lip and the rear lip are flush, the through hole corresponds to the baffle and the second lip, the mounting hole corresponds to the baffle and the second lip, and the second lip, the baffle, the first lip and the front lip are fixed to the rear lip in sequence by tightening the fixing screws in the fixing pin.

[0012] In order to use different slurries between two adjacent first liquid guiding grooves and between two adjacent second liquid guiding grooves, two adjacent notches on the first lip, two adjacent notches on the second lip, and the first lip and the second lip are isolated by a blocking piece.

[0013] The tooling part is provided with a screw hole and also includes a jacking screw matched with the screw hole, and the jacking screw is installed in the screw hole through a thread.

[0014] Preferably, sealing rings are provided at the inlet of the first liquid inlet hole and the inlet of the second liquid inlet hole.

[0015] Compared with the coating lip structure of the prior art, the staggered spliced ​​coating lip of the present invention staggers the seams of the front lip and the rear lip, and the first liquid guide grooves and the second liquid guide grooves are alternately distributed. The orthographic projection of each second liquid guide groove on the inner surface of the front lip covers the inner surface area of ​​the front lip between the two first liquid guide grooves adjacent to the orthographic projection, and the inner surfaces of both have corresponding first liquid guide grooves or second liquid guide grooves arranged along the horizontal axis direction of the first liquid guide grooves; the slurry of the second liquid guide grooves facing the splicing of the two front lips flows out from the gap of the first lip piece, and the slurry of the first liquid guide grooves facing the splicing of the two rear lips flows out from the gap of the first lip piece, thereby avoiding the lack of slurry at the splicing of the spliced ​​coating lip to affect the coating; because the seams of the front lip and the rear lip are not aligned, the substrate is blocked by the rear lip at the seams of the two front lips and cannot be arched and wrinkled; the same is true for the seams of the rear lips; the coating lip of the present invention can be spliced ​​into a wider coating lip structure, coating of large-width substrates can be achieved, and production efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is an exploded view of the offset splicing lip application of Example 1.

[0017] Figure 2 It is a schematic diagram of the staggered splicing lip coating structure of Example 1.

[0018] Figure 3 yes Figure 2 Enlarged view of part A.

[0019] Figure 4 It is an exploded view of the offset splicing lip application of Example 2.

[0020] Figure 5 Schematic diagram of the structure of the front lip, the rear lip, the first lip piece, the baffle piece and the second lip piece in the staggered splicing lip coating of Example 2

[0021] Among them: 10, front lip; 101, first liquid guide groove; 102, first liquid inlet hole; 20, rear lip; 201, second liquid guide groove; 202, second liquid inlet hole; 30, first lip; 301, conducting hole; 401, fixing pin; 402, fixing screw; 50, I-shaped part; 501, lifting screw; 60, mesh part; 70, sealing ring; 80, baffle; 90, second lip. DETAILED DESCRIPTION

[0022] The specific embodiments of the present invention are described in detail below, and examples of the specific embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0023] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] The surface of the front lip 10 and the rear lip 20 that clamps the first lip 30 is the inner surface, and the surface opposite to the inner surface of the front lip 10 is the outer surface of the front lip 10; the surface opposite to the inner surface of the rear lip 20 is the outer surface of the rear lip 20; the notch of the first lip 30 is the slurry outlet for coating the lip, and the notch setting affects the coating pattern. In the invention, the notch setting is determined according to the shape to be coated on the substrate. Since it does not involve improvement, it will not be repeated.

[0026] Example 1

[0027] like Figure 1-3As shown, this embodiment provides a staggered spliced ​​lip coating, including two front lips 10 spliced ​​left and right, two rear lips 20 spliced ​​left and right, and a first lip piece 30 with a notch at the lower end, the first lip piece 30 is clamped and fixed between each front lip 10 and the rear lip 20; four first liquid guide grooves 101 are opened on the inner surface of each front lip 10, and four second liquid guide grooves 201 are opened on the inner surface of each rear lip 20. The first liquid guide grooves 101 and the second liquid guide grooves 201 are staggered, and the orthographic projection of each second liquid guide groove 201 on the inner surface of the front lip 10 covers the inner surface area of ​​the front lip 10 between the two first liquid guide grooves 101 adjacent to the orthographic projection. In this embodiment, the width of each second liquid guide groove 201 The distance between the two adjacent first liquid guide grooves 101 at the front lip 10 facing it is equal to the distance between the two adjacent first liquid guide grooves 101; the inner surface of the front lip 10 at the joint of the two front lips 10 faces the second liquid guide groove 201; the inner surface of the rear lip 20 at the joint of the two rear lips 20 faces the first liquid guide groove 101; the joint between the two front lips 10 and the joint between the two rear lips 20 are misaligned; each rear lip 20 is provided with four second liquid inlet holes 202 communicating with the second liquid guide grooves 201, and each rear lip 20 is provided with four first liquid inlet holes 102 communicating with the first liquid guide groove 101; the first lip piece 30 is provided with a conducting hole 301 corresponding to each first liquid inlet hole 102, and the first liquid inlet hole 102 is communicated with the first liquid guide groove 101 through the conducting hole 301. Four fixing pins 401 are provided on the inner surface of each rear lip 20, and eight fixing screws 402 matching the fixing pins 401 are also provided. Four mounting holes for the fixing pins 401 to pass through are opened at corresponding positions on the inner surface of the front lip 10 and the first lip piece 30. The front lip 10 and the first lip piece 30 are fixed to the rear lip 20 by tightening the fixing screws 402 in the fixing pins 401.

[0028] During installation, first splice the two rear lips 20, so that the four fixing pins 401 pass through the four mounting holes on the first lip piece 30 and the four mounting holes on the front lip 10 in sequence, and tighten the corresponding fixing screws 402 to complete the installation of the lip piece and the front lip 10 on the rear lip 20. After the installation is completed, the two front lips 10 are spliced ​​left and right.

[0029] Working principle: Under the action of pressure, the slurry enters the second liquid guide groove 201 from the second liquid inlet hole 202 and enters the first liquid guide groove 101 from the first liquid inlet hole 102 through the conducting hole 301. The slurry in each of the first liquid guide groove 101 and the second liquid guide groove 201 flows out from the notch of the first lip 30, and the substrate moving under the notch scrapes the slurry to complete the coating.

[0030] The slurry of the present invention may also be other liquid substances, such as glue, emulsion, etc.

[0031] In order to improve the splicing stability of the two rear lips 20, an I-shaped groove is opened at the splicing position of the upper surfaces of the two rear lips 20, and an I-shaped piece 50 matching the I-shaped groove is also included. The two rear lips 20 are fixedly connected by bolts fixed to the I-shaped piece 50 in the corresponding I-shaped groove.

[0032] The I-shaped part 50 is provided with a screw hole and also includes a lifting screw 501 matching the screw hole, and the lifting screw 501 is installed in the screw hole through a thread. Since the I-shaped part 50 is embedded in the I-shaped groove, when the I-shaped part 50 is disassembled, the I-shaped part 50 has no gripping part or prying space. In order to facilitate the I-shaped part 50 to smoothly escape from the I-shaped groove during disassembly, the lifting screw 501 is screwed in, and the lower end of the lifting screw 501 is against the bottom of the I-shaped groove, and the lifting screw 501 is further screwed in, and the lifting screw 501 lifts the I-shaped part 50, thereby leaving the I-shaped groove.

[0033] In order to further improve the splicing stability of the two rear lips 20 , a mesh-shaped piece 60 is further included. The two adjacent rear lips 20 are fixedly connected by the mesh-shaped piece 60 fixed to the outer surfaces of the two corresponding rear lips 20 by bolts.

[0034] In order to improve the sealing performance at the inlet of the first liquid inlet hole 102 and the inlet of the second liquid inlet hole 202 , a sealing ring 70 is provided at the inlet of the first liquid inlet hole 102 and the inlet of the second liquid inlet hole 202 .

[0035] Example 2

[0036] like Figure 4-5 As shown, the present embodiment provides a staggered splicing lip coating structure. The lip coating structure of the present embodiment is similar to that of the embodiment 1, except that the first lip 30 of the present embodiment has eight notches, and eight coatings with smaller widths can be simultaneously performed on one substrate. The present embodiment also includes a second lip 90 with eight notches at the lower end, a baffle 80 is provided between the first lip 30 and the second lip 90, the lower ends of the first lip 30, the second lip 90, the baffle 80, the front lip 10 and the rear lip 20 are flush, the through hole 301 passes through the baffle 80 and the second lip 90, the mounting hole passes through the baffle 80 and the second lip 90, and the second lip 90, the baffle 80, the first lip 30 and the front lip 10 are sequentially fixed to the rear lip 20 by tightening the fixing screw 402 in the fixing pin 401.

[0037] Working principle: under the action of pressure, the slurry enters the second liquid guide groove 201 from the second liquid inlet hole 202, flows through the first lip 30, the baffle 80 and the conducting hole 301 on the second lip 90 from the first liquid inlet hole 102 in sequence, and then enters the first liquid guide groove 101 through the conducting hole 301; the slurry in each first liquid guide groove 101 flows out from the notch of the first lip 30 and is coated on the substrate; the slurry in the second liquid guide groove 201 flows out from the notch of the second lip 90 and is coated on the substrate.

[0038] By adding the baffle 80 and the second lip 90, the adjacent notches of the first lip 30, the adjacent notches of the second lip 90, and the notches of the first lip 30 and the notches of the second lip 90 can be separated, so that independent feeding and coating of each first liquid inlet hole 102 or the second liquid inlet hole 202 can be achieved, and the substrate can be coated with slurries of different components and inlet pressures at the same time; by adjusting the notches on the first lip 30 and the second lip 90, double-layer coating can also be achieved.

[0039] The specific embodiments of the present invention are exemplified by two front lips 10 and two rear lips 20. It should be pointed out that the splicing of more than two front lips 10 and more than two rear lips 20 falls within the scope of protection of the present invention.

[0040] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0041] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A staggered spliced ​​lip applicator, comprising at least two front lips spliced ​​left and right, at least two rear lips spliced ​​left and right, and a first lip piece with a notch at the lower end, wherein the first lip piece is clamped and fixed between the front lips and the rear lips; characterized in that: At least one first liquid conducting groove is provided on the inner surface of each front lip, and at least one second liquid conducting groove is provided on the inner surface of each rear lip. The first liquid conducting grooves and the second liquid conducting grooves are staggered, and the orthographic projection of each second liquid conducting groove on the inner surface of the front lip covers the inner surface area of ​​the front lip between two first liquid conducting grooves adjacent to the orthographic projection; the seam between any two adjacent front lips is staggered with the seam between any two adjacent rear lips; the rear lip is provided with a second liquid inlet hole communicating with the second liquid conducting groove, and the rear lip is provided with a first liquid inlet hole communicating with the first liquid conducting groove; a conducting hole is provided at the first lip piece corresponding to the first liquid inlet hole, and the first liquid inlet hole is communicated with the first liquid conducting groove through the conducting hole; sealing rings are provided at the inlet of the first liquid inlet hole and the inlet of the second liquid inlet hole.

2. The staggered splicing lip balm according to claim 1, characterized in that: The inner surface of the rear lip is provided with a fixing pin, and also includes a fixing screw matching the fixing pin. The inner surface of the front lip and the corresponding positions of the first lip piece are provided with mounting holes for the fixing pin to pass through. The front lip and the first lip piece are fixed to the rear lip by tightening the fixing screw in the fixing pin.

3. The staggered splicing lip balm according to claim 2, characterized in that: An I-shaped groove is provided at the joint of the upper surfaces of two adjacent rear lips, and an I-shaped piece matching the I-shaped groove is also provided. The two adjacent rear lips are fixedly connected to the I-shaped piece in the corresponding I-shaped groove by bolts.

4. The staggered splicing lip balm according to claim 3, characterized in that: It also includes a mesh-shaped piece, and two adjacent rear lips are fixedly connected to the mesh-shaped pieces on the outer surfaces of the corresponding two rear lips through bolts.

5. The staggered splicing lip balm according to claim 2, characterized in that: It also includes a second lip with a notch at the lower end, a baffle is provided between the first lip and the second lip, the lower ends of the first lip, the second lip, the baffle, the front lip and the rear lip are flush, the through hole passes through the baffle and the second lip correspondingly, the mounting hole passes through the baffle and the second lip correspondingly, and the second lip, the baffle, the first lip and the front lip are fixed to the rear lip in sequence by tightening the fixing screws in the fixing pin.

6. The staggered splicing lip balm according to claim 3, characterized in that: The I-shaped part is provided with a screw hole and also includes a lifting screw matching the screw hole, and the lifting screw is installed in the screw hole through a thread.

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