CN114871067A - Glue scraping device and coating equipment - Google Patents
Glue scraping device and coating equipment Download PDFInfo
- Publication number
- CN114871067A CN114871067A CN202210468244.7A CN202210468244A CN114871067A CN 114871067 A CN114871067 A CN 114871067A CN 202210468244 A CN202210468244 A CN 202210468244A CN 114871067 A CN114871067 A CN 114871067A
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- Prior art keywords
- centering
- section
- frictioning
- glue
- degrees
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- 239000003292 glue Substances 0.000 title claims abstract description 129
- 239000011248 coating agent Substances 0.000 title claims abstract description 51
- 238000000576 coating method Methods 0.000 title claims abstract description 51
- 238000007790 scraping Methods 0.000 title claims abstract description 51
- 238000003860 storage Methods 0.000 claims abstract description 35
- 238000004026 adhesive bonding Methods 0.000 claims abstract description 27
- 238000004513 sizing Methods 0.000 claims description 61
- 230000007423 decrease Effects 0.000 claims description 9
- 239000000463 material Substances 0.000 abstract description 35
- 238000007493 shaping process Methods 0.000 abstract description 18
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 12
- 238000009434 installation Methods 0.000 description 11
- 230000000694 effects Effects 0.000 description 10
- 210000003205 muscle Anatomy 0.000 description 8
- 239000003365 glass fiber Substances 0.000 description 7
- 239000002904 solvent Substances 0.000 description 6
- 238000013461 design Methods 0.000 description 5
- 239000010410 layer Substances 0.000 description 5
- 238000009792 diffusion process Methods 0.000 description 4
- 229920002050 silicone resin Polymers 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000007865 diluting Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 231100000614 poison Toxicity 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000003440 toxic substance Substances 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 150000001555 benzenes Chemical class 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000013464 silicone adhesive Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Images
Classifications
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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
- B05C11/02—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface ; Controlling means therefor; Control of the thickness of a coating by spreading or distributing liquids or other fluent materials already applied to the coated surface
- B05C11/023—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface
-
- 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
- B05C11/02—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface ; Controlling means therefor; Control of the thickness of a coating by spreading or distributing liquids or other fluent materials already applied to the coated surface
- B05C11/021—Apparatus for spreading or distributing liquids or other fluent materials already applied to the surface of an elongated body, e.g. a wire, a tube
-
- 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
- B05C11/1039—Recovery of excess liquid or other fluent material; Controlling means therefor
-
- 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
- B05C3/00—Apparatus in which the work is brought into contact with a bulk quantity of liquid or other fluent material
- B05C3/02—Apparatus in which the work is brought into contact with a bulk quantity of liquid or other fluent material the work being immersed in the liquid or other fluent material
- B05C3/12—Apparatus in which the work is brought into contact with a bulk quantity of liquid or other fluent material the work being immersed in the liquid or other fluent material for treating work of indefinite length
-
- 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
- B05C9/00—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important
- B05C9/08—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material and performing an auxiliary operation
- B05C9/14—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material and performing an auxiliary operation the auxiliary operation involving heating or cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
- B05D3/0254—After-treatment
- B05D3/0272—After-treatment with ovens
Abstract
The invention discloses a glue scraping device and coating equipment, wherein the glue scraping device comprises a shaping mold and a plurality of centering convex ribs, a shaping cavity is formed in the shaping mold, the shaping cavity comprises a wire inlet, a guide section, a centering section and a wire outlet which are sequentially communicated, the inner diameter of the guide section is gradually reduced along the direction from the wire inlet to the centering section, and a part to be glued after gluing enters the shaping mold from the wire inlet and is sent out from the wire outlet. The centering convex ribs are arranged on the inner ring surface of the centering section and extend along the axial direction of the centering section, the centering convex ribs are arranged along the circumferential direction of the inner ring surface at intervals, and a first glue storage area is formed between any two adjacent centering convex ribs. The technical scheme of the invention saves the coating cost, improves the production efficiency and reduces the harm of the coating rubber material to human bodies and the environment.
Description
Technical Field
The invention relates to the technical field of coating equipment, in particular to a glue scraping device and coating equipment.
Background
When the parts such as electric wires, cables, fiber tubes and the like are used, the parts often need to have good insulating property, high temperature resistance and the like, so a layer of sizing material with good insulating property and high temperature resistance is often coated on the surface of the parts, and the sizing material is usually silicon resin. And because the viscosity of the silicone resin is very high, the silicone resin is not easy to be directly coated in insulating materials such as fiber tubes or wires and cables, so that users often dilute the silicone resin with a solvent according to needs, coat the surfaces of the fiber tubes or the wires and cables by using a coating tool, and then carry out high-temperature curing molding by a curing oven.
However, the coating tool disclosed in the prior art is often difficult to obtain a finished product with a certain coating thickness and uniform coating once, and the required product can be obtained only by coating for many times and curing and shaping for many times, so that the production cost is increased, the production efficiency is reduced, and various solvents contain toxic substances such as benzene and the like, so that great harm is easily caused to human bodies and the environment.
Disclosure of Invention
The invention mainly aims to provide a frictioning device, and aims to save coating cost, improve production efficiency and reduce harm of coating sizing materials to human bodies and environment.
In order to achieve the above object, the present invention provides a glue spreading device, comprising:
the sizing die is internally provided with a sizing cavity, the sizing cavity comprises a wire inlet, a guide section, a centering section and a wire outlet which are sequentially communicated, the inner diameter of the guide section is gradually reduced along the direction from the wire inlet to the centering section, and a piece to be glued after gluing enters the sizing die from the wire inlet and is sent out from the wire outlet;
the plurality of centering convex ribs are arranged on the inner ring surface of the centering section and extend along the axial direction of the centering section, the plurality of centering convex ribs are arranged along the circumferential direction of the inner ring surface at intervals, and a first glue storage area is formed between any two adjacent centering convex ribs.
Optionally, the frictioning device still includes the frictioning mould, the frictioning mould install in be close to on the design mould one side of outlet, the frictioning mould is close to the one end of design mould is equipped with scrapes gluey hole, scrape gluey hole with the outlet intercommunication is used for scraping treat that the excessive sizing material of treating coating in rubberizing piece surface.
Optionally, the centering rib includes a first extending section and a main body section that are connected in sequence, the first extending section protrudes from the outlet, and the main body section is disposed on the centering section.
Optionally, a mounting groove is formed in the sizing die, the frictioning die is at least partially mounted in the mounting groove, a second glue storage area communicated with the first glue storage area is formed between the mounting groove and the frictioning die, and the first extending section is located in the mounting groove.
Optionally, the frictioning mold has a bottom surface facing the centering rib, the frictioning hole is opened on the bottom surface, and a gap is formed between the bottom surface and one end of the first extension section away from the main body section.
Optionally, first extension section have the face towards the frictioning mould, the terminal surface is relative centering section's axis direction slope sets up, the terminal surface with distance between the centering section axis, along by inlet towards the direction of outlet reduces gradually, the terminal surface is relative centering section's axis direction is the angle of contained angle and is greater than or equal to 40 degrees, and is less than or equal to 60 degrees.
Optionally, the bottom surface is a conical surface or an arc surface recessed towards the direction of the glue scraping hole.
Optionally, the taper angle of the taper surface is greater than or equal to 120 degrees and less than or equal to 160 degrees.
Optionally, the centering rib further includes a second extending section connected to the main body section, and the second extending section is disposed on the guiding section and extends along the axial direction of the guiding section.
Optionally, the centering rib has an inner edge close to the axis of the centering segment, and a distance between two adjacent inner edges is greater than or equal to 0.5mm and less than or equal to 1.5 mm.
Optionally, the centering rib extends toward a radial direction of the centering section, the thickness of the centering rib extends along a circumferential direction of the centering section, and the thickness decreases along the radial direction toward an axis of the centering section.
Optionally, an included angle formed by the inner wall surface of the guide section relative to the axial direction of the guide section is greater than or equal to 7.5 degrees and less than or equal to 15 degrees.
The invention also provides coating equipment which comprises a gluing device, a curing device and the glue scraping device, wherein the gluing device comprises a gluing groove, the gluing groove is used for containing a glue material to be coated and gluing the part to be glued, the glue scraping device is arranged above the gluing device, and the curing device is arranged above the glue scraping device.
According to the technical scheme, the sizing die and the plurality of centering convex ribs are arranged, the sizing die is internally provided with the sizing cavity, the sizing cavity comprises a wire inlet, a guide section, a centering section and a wire outlet which are sequentially communicated, the inner diameter of the guide section is gradually reduced along the direction from the wire inlet to the centering section, and a piece to be glued after gluing enters the sizing die from the wire inlet and is sent out from the wire outlet. The interior anchor ring of centering section is equipped with a plurality of centering protruding muscle along the axial extension of centering section, and a plurality of centering protruding muscle are arranged along the circumference interval of interior anchor ring, are formed with first glue storage area between two arbitrary adjacent centering protruding muscle. Because of treating that the rubberizing piece has certain length, and treat that the sizing material of coating is not evenly distributed in the circumference of treating the rubberizing piece, the rubberizing piece of treating after the rubberizing gets into design mould by the entrance, and by the direction section direction, make and treat that the rubberizing piece can pass the direction section fast and get into the centering section, and the inner ring surface of centering section is equipped with a plurality of centering protruding muscle along the axial extension of centering section, a plurality of centering protruding muscle are arranged along the circumference interval of inner ring surface, be formed with first glue storage area between two arbitrary adjacent centering protruding muscle. Therefore, the redundant glue materials to be coated scraped through the glue scraping holes can be remained between any two adjacent centering convex ribs, so that each gap can store a certain amount of glue materials to be coated, the glue is timely supplemented for the parts to be coated, the enough glue coating amount is ensured, and the continuous coating of the parts to be coated is realized. A plurality of protruding muscle of centering are arranged along the circumference interval of interior anchor ring to enclose the diameter that closes the centering hole section that forms and approximately equal to the diameter of rubberizing piece, make the centering section have better centering effect, even if treat when the rubberizing piece is soft pipes such as glass fiber tube, also can be effectively for treating rubberizing piece direction centering. Therefore, the finished product can be obtained only by one-time coating and forming, and the benzene diluting solvent is not required to be added. The coating forming efficiency of the piece to be coated is improved, the coating forming cost is saved, and the harm of the glue to be coated to human bodies and the environment is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a cross-sectional view of one embodiment of a squeegee assembly of the invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is an exploded view of the squeegee assembly of FIG. 1;
FIG. 4 is a cross-sectional view of a sizing die in the frictioning device of FIG. 1;
FIG. 5 is a schematic structural view of a sizing mold in the glue scraping device in FIG. 1;
FIG. 6 is a cross-sectional view of a doctor blade die of the doctor blade apparatus of FIG. 1;
FIG. 7 is a schematic structural diagram of an embodiment of the coating apparatus of the present invention.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 100 | |
130 | |
| 110 | Shaping die | 131 | The first |
| 111 | Fixed |
132 | |
| 112 | |
133 | |
| 113 | |
134 | Second |
| 114 | |
135 | |
| 115 | |
136 | |
| 116 | |
137 | |
| 120 | |
200 | Part to be glued |
| 121 | |
300 | |
| 122 | |
400 | |
| 123 | |
410 | |
| 124 | |
500 | Curing device |
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is 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 at least one such feature. In addition, the meaning of "and/or" appearing throughout is to include three juxtapositions, exemplified by "A and/or B," including either the A or B arrangement, or both A and B satisfied arrangement. In addition, technical solutions between the embodiments may be combined with each other, but must be based on the realization of the technical solutions by a person skilled in the art, and when the technical solutions are contradictory to each other or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The invention provides a glue scraping device 100 for a coating device 300. The coating device 300 can coat the surface of a product such as a cable wire, a glass fiber tube and the like, so that a coating layer with a certain thickness is formed on the surface of the product, thereby improving some properties of the product, such as insulation property, high temperature resistance and the like. The finished product which is uniformly coated and has certain coating thickness is difficult to obtain at one time, the coating is often required for multiple times, and the required product can be obtained through multiple times of curing and shaping, so that the production cost is increased, the production efficiency is reduced, and the various solvents contain toxic substances such as benzene and the like, so that great harm is easily caused to human bodies and the environment.
In the embodiment of the present invention, as shown in fig. 1 to 5, the glue scraping device 100 includes a sizing mold 110 and a plurality of centering ribs 130, a sizing cavity 111 is formed in the sizing mold 110, the sizing cavity 111 includes a wire inlet 112, a guide section 113, a centering section 114 and a wire outlet 115 which are sequentially communicated, an inner diameter of the guide section 113 gradually decreases along a direction from the wire inlet 112 to the centering section 114, and the glued piece 200 to be glued enters the sizing mold 110 from the wire inlet 112 and is sent out from the wire outlet 115. The inner ring surface of the centering section 114 is provided with a plurality of centering ribs 130 extending along the axial direction of the centering section 114, the plurality of centering ribs 130 are arranged along the circumferential direction of the inner ring surface at intervals, and a first glue storage area 131 is formed between any two adjacent centering ribs 130.
Further, the frictioning device 100 further includes a frictioning mold 120, the frictioning mold 120 is installed on one side of the shaping mold 110 close to the outlet 115, a frictioning hole 121 is arranged at one end of the frictioning mold 120 close to the shaping mold 110, and the frictioning hole 121 is communicated with the outlet 115 and used for scraping off the redundant sizing material to be coated on the surface of the piece 200 to be coated.
The part 200 to be glued may be a cable, a wire, a glass fiber tube, or other parts that need to have good insulation performance and high temperature resistance, and is shaped as an elongated part with a length greater than its radius. The sizing material to be coated can be silicone resin and other sizing materials with better insulating property and high temperature resistance. The glued piece 200 to be glued after gluing enters the sizing die 110 through the wire inlet 112 and is guided by the guide section 113, so that the glued piece 200 to be glued can quickly pass through the guide section 113 and enter the centering section 114, the centering section 114 can guide the glued piece 200 to be glued and can effectively fix the axis of the glued piece 200 to be glued, the glued piece 200 to be glued moves in a certain direction and then passes out through the wire outlet 115, and the glued piece enters the glue scraping die 120 to be scraped. One side that frictioning mould 120 is close to outlet 115 is equipped with frictioning hole 121, the diameter of this frictioning hole 121 equals approximately to wait to glue the diameter behind piece 200 coating waiting to coat the sizing material, make and wait to glue piece 200 when scraping gluey hole 121, frictioning hole 121 will cover and wait to coat the sizing material and scrape down in the surplus of waiting to glue piece 200, and simultaneously, it has certain degree of depth to scrape gluey hole 121, when scraping gluey hole 121 and waiting to glue piece 200 wait to coat the sizing material contact, can effectively smooth its surface, and obtain the glue film of predetermineeing thickness through follow-up solidification. So, this scheme only needs once coating shaping, just can obtain the finished product, and need not to add benzene class diluent solvent.
When it is through scraping gluey hole 121, treat that unnecessary waiting to coat sizing material on rubberizing piece 200 is scraped and flows into first glue storage area 131, treat that rubberizing piece 200 has certain length, and treat that the sizing material of coating is not evenly distributed in the circumference of treating rubberizing piece 200, the unnecessary sizing material of treating the coating of so scraping down through scraping gluey hole 121 probably stays between two arbitrary adjacent centering protruding muscle 130, make each clearance homoenergetic store a certain amount of sizing material of treating, thereby in time for treating rubberizing piece 200 glue filling, guarantee sufficient rubberizing volume, thereby realize waiting to coat the continuous coating of rubberizing piece 200. The plurality of centering ribs 130 are arranged at intervals along the circumferential direction of the inner ring surface, and the diameter of the centering hole section formed by enclosing is approximately equal to the diameter of the piece to be glued 200, so that the centering section 114 has a better centering effect, and even if the piece to be glued 200 is a glass fiber tube or other flexible tube, the piece to be glued 200 can be effectively centered in a guiding manner. Frictioning mould 120 adopts to dismantle with design mould 110 and is connected, not only can conveniently change or maintain frictioning mould 120 and design mould 110, when the glue film of treating that needs different thickness, only need to have the frictioning mould 120 in the frictioning hole 121 of different diameters through the change can realize convenient operation simultaneously. The glue scraping mold 120 and the shaping mold 110 can be detachably mounted through threaded connection, clamping connection, bonding connection or the like. The inner diameter of the guiding section 113 decreases from the direction of the wire inlet 112 to the centering section 114, so that the member 200 to be glued can be effectively guided.
According to the technical scheme, the sizing die 110 and the plurality of centering ribs 130 are arranged, the sizing die 110 is internally provided with the sizing cavity 111, the sizing cavity 111 comprises a wire inlet 112, a guide section 113, a centering section 114 and a wire outlet 115 which are sequentially communicated, the inner diameter of the guide section 113 is gradually reduced along the direction from the wire inlet 112 to the centering section 114, and the glued piece 200 to be glued enters the sizing die 110 from the wire inlet 112 and is sent out from the wire outlet 115. The inner ring surface of the centering section 114 is provided with a plurality of centering ribs 130 extending along the axial direction of the centering section 114, the plurality of centering ribs 130 are arranged along the circumferential direction of the inner ring surface at intervals, and a first glue storage area 131 is formed between any two adjacent centering ribs 130. Because the piece 200 to be glued has a certain length, and the glue stock to be coated is not evenly distributed in the circumference of the piece 200 to be glued, the glued piece 200 to be glued enters the sizing die 110 from the wire inlet 112 after being glued, and is guided by the guide section 113, so that the piece 200 to be glued can rapidly pass through the guide section 113 to enter the centering section 114, the inner ring surface of the centering section 114 is provided with a plurality of centering convex ribs 130 extending along the axial direction of the centering section 114, the plurality of centering convex ribs 130 are arranged at intervals along the circumference of the inner ring surface, and a first glue storage area 131 is formed between any two adjacent centering convex ribs 130. Therefore, the redundant glue scraped through the glue scraping hole 121 and to be coated may be left between any two adjacent centering ribs 130, so that each gap can store a certain amount of glue to be coated, the glue is timely supplemented for the part 200 to be coated, the sufficient glue coating amount is ensured, and the continuous coating of the part 200 to be coated is realized. The plurality of centering ribs 130 are arranged at intervals along the circumferential direction of the inner ring surface, and the diameter of the centering hole section formed by enclosing is approximately equal to the diameter of the piece to be glued 200, so that the centering section 114 has a better centering effect, and even if the piece to be glued 200 is a glass fiber tube or other flexible tube, the piece to be glued 200 can be effectively centered in a guiding manner. Therefore, the finished product can be obtained only by one-time coating and forming, and benzene diluting solvent is not required to be added. Not only improves the efficiency of coating and forming the piece to be coated 200 and saves the cost of coating and forming, but also reduces the harm of the sizing material to be coated to human bodies and the environment.
Further, the centering rib 130 includes a first extending section 132 and a main body section 133 connected in sequence, the first extending section 132 protrudes from the outlet 115, and the main body section 133 is disposed on the centering section 114. The first extension section 13 is used for extending the length of the centering rib 130, so that the contact area between the centering rib 130 and the piece to be glued 200 is increased, the guiding and centering effect is improved, the capacity of the first glue storage area 131 is increased, the glue storage amount of the first glue storage area 131 is further increased, and the continuous coating of the piece to be glued 200 is further ensured.
Referring to fig. 1 to 4, in an embodiment, the shaping mold 110 is provided with an installation groove 116, the glue scraping mold 120 is at least partially installed in the installation groove 116, a second glue storage area 134 communicated with the first glue storage area 131 is formed between the installation groove 116 and the glue scraping mold 120, and the first extension section 132 is located in the installation groove 116. Specifically, a gap is formed between the bottom wall of the mounting groove and the frictioning mold 120, so that the second glue storage area 134 is formed. The excessive glue to be coated scraped by the glue scraping holes 121 can be stored in the second glue storage area 134, so that the glue storage amount is increased, and the continuous coating of the piece to be coated 200 is further ensured. The frictioning mold 120 is at least partially installed in the installation groove 116, so that the installation area of the frictioning mold 120 and the shaping mold 110 is increased, and the installation strength of the frictioning mold 120 and the shaping mold 110 is enhanced. The glue scraping mold 120 and the shaping mold 110 can be detachably mounted in a threaded connection, a clamping connection or a bonding connection mode.
Referring to fig. 1 and fig. 2, in an embodiment, the dispensing mold 100 has a bottom surface 122 facing the centering rib 130, the dispensing hole 121 is opened on the bottom surface 122, and a gap is formed between the bottom surface 122 and an end of the first extending section 132 away from the main body section 131. Specifically, a gap is formed between the bottom surface 122 and an end of the first extending section 132 away from the main body section 131, and due to the existence of the gap, the excess glue to be coated scraped through the glue scraping hole 121 flows into the second glue storage area 134 partially, and falls between any two adjacent centering ribs 130, i.e., falls into the first glue storage area 131. When the excessive glue to be coated falling into the second glue storage area 134 flows to the second glue storage area 134 along the first extension section 132, the excessive glue to be coated diffuses along the radial direction of the installation groove 116 and also diffuses along the circumferential direction of the installation groove 116, and as the piece 200 to be coated continuously moves along the centering section 114, the excessive glue to be coated is continuously scraped by the glue scraping hole 121, so that the glue to be coated continuously flows into the second glue storage area 134 along the first extension section 132 via the gap, and the glue to be coated originally in the second glue storage area 134 is pushed to move while diffusing in the installation groove 116, so that the fluidity of the glue to be coated in the second glue storage area 134 is increased, the glue to be coated is uniformly distributed in the second glue storage area 134, and a dead zone in which the glue to be coated is difficult to flow is not generated.
In order to ensure that the glue to be applied scraped through the glue scraping hole 121 smoothly flows into the second glue storage area 134, in an embodiment, referring to fig. 1, 2, 3 and 6 in combination, the first extending section 132 has an end surface 135 facing the glue scraping mold 120, the end surface 135 is disposed obliquely with respect to the axial direction of the centering section 114, the distance between the end surface 135 and the axial direction of the centering section 114 gradually decreases along the direction from the wire inlet 112 toward the wire outlet 115, and the included angle formed by the end surface 135 with respect to the axial direction of the centering section 114 is greater than or equal to 40 degrees and less than or equal to 60 degrees. Specifically, the first extending section 132 has an end face 135 facing the frictioning die 120, the end face 135 is disposed obliquely relative to the axial direction of the centering section 114, and the distance between the end face 135 and the axial direction of the centering section 114 gradually decreases along the direction from the wire inlet 112 to the wire outlet 115, that is, one end of the first extending section 132 close to the frictioning die 120 has a certain inclined plane in the width direction thereof, so that the excess glue to be coated scraped by the frictioning hole 121 can be guided by the end face 135 to smoothly flow to the second glue storage area 134. Because of the terminal surface 135 has certain gradient, make the sizing material of waiting to coat through the clearance flow down smoothly to second and store up gluey district 134 along the extending direction of terminal surface 135, compare in directly flowing into second and store up gluey district 134 through the clearance, the scheme of no terminal surface 135 direction promptly, this scheme is not only for waiting to coat the sizing material direction, and because of terminal surface 135 has certain gradient, the sizing material of waiting to coat that flows into second and store up gluey district 134 provides the acceleration, the mobility and the diffusion degree of the sizing material of waiting to coat have further been increased, thereby the mobility of the sizing material of waiting to coat has been increased, make the sizing material of waiting to coat more evenly distributed in second stores up gluey district 134. So set up for extension 133's first glue storage area 131 can have better glue filling effect, and the nearer apart from waiting to glue piece 200, the more easily glue material of waiting to coat that is deposited in first glue storage area 131 also is for waiting to glue piece 200 glue filling. And the included angle formed by the end surface 135 relative to the axial direction of the centering segment 114 is more than or equal to 40 degrees and less than or equal to 60 degrees, so that the flowability of the sizing material to be coated is further increased.
The included angle of the end surface 135 with respect to the axial direction of the centering segment 114 may be 40 degrees, 45 degrees, 50 degrees, 55 degrees, 60 degrees, etc., and of course, in other embodiments, the included angle of the end surface 135 with respect to the axial direction of the centering segment 114 may also be smaller than 40 degrees or larger than 60 degrees.
Further, the bottom surface 122 is a conical surface or an arc surface recessed toward the glue scraping hole 121. Specifically, bottom surface 122 is the sunken conical surface of scraping gluey hole 121 orientation towards, conical surface (bottom surface 122) set up can be for waiting to coat the flow direction of sizing material, after waiting to coat sizing material to scrape down through scraping gluey hole 121 along its conical surface (bottom surface 122) diffusion to terminal surface 135, and flow into second along terminal surface 135 and store up gluey district 134, thereby increased the diffusion degree of waiting to coat the sizing material, the indirect proportion of waiting to coat sizing material that has flowed into second and store up gluey district 134 that has increased, and then increased the memory space that second stored up gluey district 134, guarantee that sufficient waiting to coat the sizing material can be at any time for moving to waiting to glue piece 200 and mending of the clearance department of first extension 132 and scraping gluey hole 121. Of course, in other embodiments, the bottom surface 122 may also be a curved surface recessed toward the squeegee hole 121.
In one embodiment, the taper angle of the tapered surface (bottom surface 122) is greater than or equal to 120 degrees and less than or equal to 160 degrees. That is, the taper angle of the taper surface (bottom surface 122) is greater than the angle formed by the end surface 135 relative to the axial direction of the centering segment 114, so as to ensure that the glue to be coated scraped through the glue scraping hole 121 smoothly flows to the end surface 135 after being diffused along the taper surface (bottom surface 122), and if the taper angle of the taper surface (bottom surface 122) is less than 120 degrees, the glue to be coated scraped through the glue scraping hole 121 may interfere with or attach to the end surface, and it is difficult to ensure that the glue to be coated smoothly flows to the end surface 135 after being diffused along the taper surface (bottom surface 122). If the taper angle of the tapered surface (bottom surface 122) is greater than 160 degrees, the guide or diffusion effect is reduced if the taper angle is too large.
The angle of the taper angle may be 120 degrees, 130 degrees, 140 degrees, 150 degrees, 160 degrees, etc. Of course, in other embodiments, the end surface 135 may be angled less than 120 degrees or greater than 160 degrees relative to the axial direction of the centering segment 114.
Referring to fig. 1 to 5, in an embodiment, the centering rib 130 further includes a second extending section 136 connected to the main body section 133, and the second extending section 136 is disposed on the guiding section 113 and extends along an axial direction of the guiding section 113. That is, the centering rib 130 may extend only at the centering section 114, and at this time, the centering rib 130 has only the main body section 133 and the first extending section 132; or extend out of the centering segment 114 to the guiding segment 113, in which case, the centering rib 130 includes a first extending segment 132, a main body segment 133 and a second extending segment 136 connected in sequence, thereby facilitating the processing of the centering rib 130.
Referring again to fig. 1 to 5, in an embodiment, the centering rib 130 has an inner edge 137 close to the axial center of the centering segment 114, and the distance between two adjacent inner edges 137 is greater than or equal to 0.5mm and less than or equal to 1.5 mm. Specifically, as shown in fig. 5, the distance between two adjacent inner edges 137 is d. The two inner edges 137 are respectively arranged on two adjacent centering ribs 130, and because the centering ribs 130 have a certain thickness in the circumferential direction of the centering section 114 and a certain width in the radial direction of the centering section 114, the distance between the two inner edges 137 is the distance between the vertical projections of the inner edges 137 on the same plane. If the distance between two adjacent inner edges 137 is less than 0.5mm, the distance between two adjacent centering ribs 130 is too small, so that sufficient glue to be coated is difficult to store, the possibility of realizing continuous coating of the piece to be coated 200 is reduced, and the quality of a finished product is reduced; if the distance between two adjacent inner edges 137 is greater than 1.5mm, the distance between two adjacent centering ribs 130 is too large, which makes it difficult to effectively attach the piece to be glued 200, and is not favorable for centering the piece to be glued 200.
Wherein, the distance between two adjacent inner edges 137 may be 0.5mm, 0.7mm, 0.9mm, 1.0mm, 1.2mm, 1.5mm, etc. Of course, in other embodiments, the distance between two adjacent inner edges 137 may be less than 0.5mm or greater than 1.5 mm.
Referring again to fig. 2 and 5, in an embodiment, the centering rib 130 extends in a radial direction of the centering segment 114, the thickness of the centering rib 130 extends in a circumferential direction of the centering segment 114, and the thickness decreases in a radial direction toward the axial center of the centering segment 114. Specifically, the centering bead 130 decreases in thickness in a radial direction toward the axial center of the centering section 114. The centering rib 130 may be arranged in a descending manner, and at this time, the cross section of the centering rib 130 in the radial direction is trapezoidal; the setting can also be reduced in a sudden change mode, and at the moment, the shape of the cross section of the centering convex rib 130 in the radial direction is stepped; in this embodiment, the side of the centering rib 130 is a plane, so that the processing difficulty of the centering rib 130 can be effectively reduced. Of course, in other embodiments, the side surface of the centering rib 130 may be a curved surface.
In order to ensure the guiding effect of the guiding section 113 on the to-be-glued piece 200, in an embodiment, an angle formed by an inner wall surface of the guiding section 113 and an axial direction of the guiding section 113 is greater than or equal to 7.5 degrees and less than or equal to 15 degrees. Specifically, an angle formed by the inner wall surface of the guide section 113 with respect to the axial direction of the guide section 113 is greater than or equal to 7.5 degrees and less than or equal to 15 degrees, that is, an angle formed by the inner wall surface of the guide section 113 with respect to each other is greater than or equal to 15 degrees and less than or equal to 30 degrees. That is, if the angle formed by the inner wall surface of the guide section 113 and the axial direction of the guide section 113 is smaller than 7.5 degrees, the inclination degree of the inner wall surface of the guide section 113 is too small, which is not beneficial to the processing of the guide section 113, and may accidentally scrape off the glue to be coated on the piece 200 to be glued; if the angle formed by the inner wall surface of the guide section 113 and the axial direction of the guide section 113 is greater than 15 degrees, the inclination degree of the inner wall surface of the guide section 113 is too large, which is not favorable for the guiding effect of the guide section 113.
The included angle of the inner wall surface of the guide section 113 with respect to the axial direction of the guide section 113 may be 7.5 degrees, 9 degrees, 10.5 degrees, 12 degrees, 13.5 degrees, and 15 degrees. Of course, in other embodiments, the angle formed by the inner wall surface of the guide section 113 with respect to the axial direction of the guide section 113 may be smaller than 7.5 degrees or larger than 15 degrees.
In order to fix the frictioning mold 120, in an embodiment, referring to fig. 1, fig. 2, fig. 3 and fig. 6, the frictioning mold 120 further includes a mounting portion 123 for fixing the frictioning mold 120, the mounting portion 123 is provided with an extension portion 124 communicated with the frictioning hole 121, and an aperture of the extension portion 124 is larger than an aperture of the frictioning hole 121. Specifically, the mounting portion 123 is used to fix the frictioning die 120, so as to enhance the stability of the frictioning device 100. The installation portion 123 is provided with an expansion section 124 communicated with the glue scraping hole 121, and the aperture of the expansion section 124 is larger than that of the glue scraping hole 121. Therefore, the coated part 200 to be coated is moved away, the possibility of interference between the part 200 to be coated and the frictioning mold 120 is reduced, the coating effect is ensured, and the mounting part 123 of the frictioning mold 120 is not polluted.
The present invention further provides a coating apparatus 300, the coating apparatus 300 includes a gluing device 400, a curing device 500 and a glue scraping device 100, the specific structure of the glue scraping device 100 refers to the above embodiments, and since the coating apparatus 300 adopts all technical solutions of all the above embodiments, at least all beneficial effects brought by the technical solutions of the above embodiments are achieved, and no further description is provided herein.
With reference to fig. 1 to 7, the gluing device 400 includes a gluing tank 410, the gluing tank 410 is used for accommodating a glue to be coated and gluing a part 200 to be glued, the glue scraping device 100 is disposed above the gluing device 400, and the curing device 500 is disposed above the glue scraping device 100. The piece to be glued 200 is glued by the glue to be coated in the gluing groove 410, so that the glue to be coated is directly coated on the surface of the piece to be glued 200. Then, the piece to be glued 200 coated with the glue to be coated is driven to pass through the wire inlet 112 and enter the shaping mold 110 for shaping, then the piece to be glued is penetrated out from the wire outlet 115 and the excess glue to be coated is scraped through the glue scraping hole 121, and the piece to be glued 200 after coating is driven to continue to move and is cured through the curing device 500, so that a glue layer with a certain thickness and uniform coating is formed on the piece to be glued 200. The curing device 500 may be a curing oven, and cures the glue material to be coated on the part to be glued 200 by high-temperature curing to form a coated glue layer, so as to obtain a finished product.
In order to further verify the glue scraping effect of the glue scraping device 100 in the coating apparatus 300, i.e. the uniformity of the glue to be coated on the surface of the piece to be glued 200, the main verification process is as follows:
the product is sized by a sizing device 400, then the sizing material to be coated on the surface of the product is uniformly coated by a glue scraping device 100, and a uniform coating glue layer is formed by a curing device 500 to obtain a finished product.
And then uniformly dividing the finished product into a plurality of equal parts along the circumferential direction, respectively measuring the diameter of the finished product in the direction of each equal part to obtain a plurality of groups of data, and calculating and judging the uniformity degree of the coated adhesive layer by using the plurality of groups of data to determine whether the finished product meets the product requirements.
The calculation process mainly involves the following two formulas:
wherein n represents the number of equal parts; x 1 ，X 2 …X n Respectively, the diameter in the direction of each aliquot.
Taking a silicone glass fiber sleeve with the pressure rating of 1200V as an example, the production standard is that the surface of a glass fiber pipe with the diameter of 2mm is uniformly coated with a silicone adhesive layer with the thickness of about 0.2mm, and the standard tolerance of the product is sigma Sign board When the diameter of the product is equal to 0.05mm, the product is evenly divided into eight equal parts, then the diameter of each equal part in the direction is measured respectively to obtain eight groups of data, the standard deviation sigma is calculated, and the following table is drawn:
the sigma is 0.01mm < sigma by comparison Sign board ＝0.05mm, so that the finished product coated by the coating equipment 300 meets the technical requirements of products.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (13)
1. A frictioning device, comprising:
the sizing die is internally provided with a sizing cavity, the sizing cavity comprises a wire inlet, a guide section, a centering section and a wire outlet which are sequentially communicated, the inner diameter of the guide section is gradually reduced along the direction from the wire inlet to the centering section, and a piece to be glued after gluing enters the sizing die from the wire inlet and is sent out from the wire outlet;
the plurality of centering convex ribs are arranged on the inner ring surface of the centering section and extend along the axial direction of the centering section, the plurality of centering convex ribs are arranged along the circumferential direction of the inner ring surface at intervals, and a first glue storage area is formed between any two adjacent centering convex ribs.
2. The frictioning device of claim 1, further comprising a frictioning mold, wherein the frictioning mold is mounted on one side of the sizing mold near the outlet, and a frictioning hole is formed at one end of the frictioning mold near the sizing mold, and the frictioning hole is communicated with the outlet and is used for scraping off excess glue to be coated on the surface of the piece to be glued.
3. The frictioning device of claim 2, wherein the centering rib comprises a first extension section and a main body section connected in sequence, the first extension section is disposed to protrude from the outlet, and the main body section is disposed on the centering section.
4. The frictioning device of claim 3, wherein a mounting groove is formed on the sizing die, the frictioning die is at least partially mounted in the mounting groove, a second glue storage area communicated with the first glue storage area is formed between the mounting groove and the frictioning die, and the first extending section is located in the mounting groove.
5. The frictioning device of claim 4, wherein the frictioning die has a bottom surface facing the centering rib, the frictioning hole opens on the bottom surface, and a gap is provided between the bottom surface and an end of the first extension section away from the main body section.
6. The frictioning device of claim 3, wherein the first extension section has an end surface facing the frictioning mold, the end surface is disposed obliquely with respect to the axial direction of the centering section, the distance between the end surface and the axial direction of the centering section gradually decreases along the direction from the wire inlet to the wire outlet, and the angle formed by the end surface with respect to the axial direction of the centering section is greater than or equal to 40 degrees and less than or equal to 60 degrees.
7. The frictioning device of claim 5, wherein the bottom surface is a tapered or curved surface that is concave toward the frictioning hole.
8. The squeegee apparatus of claim 7, wherein the taper angle of the tapered surface is greater than or equal to 120 degrees and less than or equal to 160 degrees.
9. The frictioning device of claim 3, wherein the centering rib further includes a second extension section connected to the main body section, the second extension section is disposed on the guide section and extends along the axial direction of the guide section.
10. The frictioning device of claim 1, wherein the centering rib has an inner edge near the center of the centering section, and the distance between two adjacent inner edges is greater than or equal to 0.5mm and less than or equal to 1.5 mm.
11. The frictioning device of claim 1, wherein the centering rib extends in a radial direction of the centering section, a thickness of the centering rib extends in a circumferential direction of the centering section, and the thickness decreases in a radial direction toward an axial center of the centering section.
12. A squeegee apparatus according to any one of claims 1 to 11, wherein an angle formed by an inner wall surface of the guide section with respect to an axial direction of the guide section is greater than or equal to 7.5 degrees and less than or equal to 15 degrees.
13. A coating apparatus, comprising a gluing device, a curing device and a glue scraping device as claimed in any one of claims 1 to 12, wherein the gluing device comprises a gluing tank for containing a glue to be coated and for gluing a part to be glued, the gluing device is arranged above the gluing device, and the curing device is arranged above the gluing device.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210468244.7A CN114871067A (en) | 2022-04-29 | 2022-04-29 | Glue scraping device and coating equipment |
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| CN202210468244.7A CN114871067A (en) | 2022-04-29 | 2022-04-29 | Glue scraping device and coating equipment |
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