CN111605166A - Coating process and coating device for material adhesive film decoration - Google Patents
Coating process and coating device for material adhesive film decoration Download PDFInfo
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- CN111605166A CN111605166A CN202010314552.5A CN202010314552A CN111605166A CN 111605166 A CN111605166 A CN 111605166A CN 202010314552 A CN202010314552 A CN 202010314552A CN 111605166 A CN111605166 A CN 111605166A
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- film
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- 239000000463 material Substances 0.000 title claims abstract description 207
- 239000002313 adhesive film Substances 0.000 title claims abstract description 92
- 238000005034 decoration Methods 0.000 title claims abstract description 79
- 238000000576 coating method Methods 0.000 title claims abstract description 52
- 239000011248 coating agent Substances 0.000 title claims abstract description 38
- 238000005253 cladding Methods 0.000 claims abstract description 26
- 238000005520 cutting process Methods 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 13
- 239000003292 glue Substances 0.000 claims abstract description 10
- 230000008569 process Effects 0.000 claims abstract description 10
- 239000012528 membrane Substances 0.000 claims abstract description 8
- 238000010438 heat treatment Methods 0.000 claims description 16
- 238000012805 post-processing Methods 0.000 claims description 7
- 239000013013 elastic material Substances 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 238000009501 film coating Methods 0.000 claims description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 25
- 230000000694 effects Effects 0.000 abstract description 8
- 239000004033 plastic Substances 0.000 abstract description 5
- 230000006872 improvement Effects 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 7
- 239000004820 Pressure-sensitive adhesive Substances 0.000 description 6
- 239000004831 Hot glue Substances 0.000 description 4
- 239000002985 plastic film Substances 0.000 description 4
- 229920006255 plastic film Polymers 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000009740 moulding (composite fabrication) Methods 0.000 description 3
- 241001391944 Commicarpus scandens Species 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/10—Forming by pressure difference, e.g. vacuum
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/12—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor of articles having inserts or reinforcements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/26—Component parts, details or accessories; Auxiliary operations
- B29C51/30—Moulds
- B29C51/36—Moulds specially adapted for vacuum forming, Manufacture thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/26—Component parts, details or accessories; Auxiliary operations
- B29C51/30—Moulds
- B29C51/40—Venting means
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
Abstract
The invention discloses a coating process for material adhesive film decoration, which comprises the following steps: (1): determining a material coating range and marking out a mark; (2): selecting a material fixing unit, wherein a certain gap is formed between the side surface of the material fixing unit and the male die surface of the material fixing unit; (3): unfolding and fixing the decoration glue film, and preheating and baking; (4): vacuumizing, and decorating the adhesive film to coat the material; (5): and cutting the redundant decorating glue films. The beneficial effect of adopting above-mentioned technical scheme is: through the cladding scope on increase material surface, expand the cladding scope to public mould face, optimize the structure of material fixed unit, the plastic uptake direction of effective control membrane material realizes the purpose of cladding to public mould face preset position, and this technical scheme process is simple, reaches high-quality sense effect and thoroughly solves the problem of revealing white with lower cost, has good commercial value and application prospect.
Description
Technical Field
The invention relates to the technical field of adhesive film decoration, in particular to a coating process and a coating device for material adhesive film decoration.
Background
The vacuum plastic sucking technique for external decoration of mould is characterized by that the product after injection moulding is placed in the tool to be transferred, then the product and decorative film are undergone the processes of heating, forming and pressing under the vacuum environment to make decoration of product, and although the product and decorative film have good coating property for appearance, it mainly utilizes the coating process to coat the surface to be decorated of the required decorative material, and the non-decorative surface of the material and the interface surface of the surface to be decorated and non-decorative surface are difficult to obtain effective decoration, so that when the material is combined with other counter-hand components, the raw material bottom colour or white edge which is not modified can be obviously exposed from gap of joint position, so that the material decoration by using external decoration of mould only can be limited to external surface, if the object is double-faced external product, it is difficult to implement so as to form the defect of design and aesthetic appearance.
In view of the above-mentioned problem that the material decoration is revealed white puzzles the promotion of relevant producer's decoration quality all the time to restricted the application and popularization of mould outer decoration technique, this technical field needs a cladding technology and cladding device that the process is simple, and economic high efficiency can practically avoid not revealing white phenomenon.
Disclosure of Invention
In order to solve the technical problems, the invention provides a coating process and a coating device which have simple working procedures, are economical and efficient, are suitable for mass production and can avoid the phenomenon of white leakage.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a coating process for decorating a material adhesive film comprises the following steps: step (1): determining the coating range of a decoration adhesive film according to a female die surface, a joint surface and a male die surface of a material, wherein the edge of the decoration adhesive film at least exceeds the joint surface of the material to the designated position of the male die surface, marking lines are drawn, the material is to-be-decorated, the female die surface and the male die surface are respectively an outer surface of the material and a back surface opposite to the outer surface, the joint surface is a transition surface between the outer surface and the back surface of the material, and the decoration adhesive film is an adhesive film with a self-adhesion function for decorating the material; step (2): selecting a material fixing unit according to the determined coating range of the material, placing the material fixing unit in a sealable cavity, fixing the material on the top of the material fixing unit by taking a male die surface as a fixing surface, and forming a certain gap between a part to be coated below a marking line on the male die surface of the material and the side surface of the material fixing unit; and (3): unfolding the decoration adhesive film, fixing the decoration adhesive film at the opening of the closable cavity in the direction that the bonding surface faces inwards to finish the closing of the closable cavity, and baking the decoration adhesive film from the outside of the closed cavity; and (4): pumping out the gas in the closed cavity, moving the material to the decoration glue film direction until the material entirely exceeds the surface fixed by the decoration glue film at the opening of the closed cavity, and coating the decoration glue film on the female die surface, the joint surface and part of the male die surface of the material under the pressure of internal and external pressure difference; and (5): and post-processing, namely cutting redundant decoration glue films exceeding the marking lines on the male die surface of the material, and finishing the material coating.
The beneficial effect of adopting above-mentioned technical scheme is: the technical scheme is simple in process, can achieve high-quality effect and thoroughly solve the problem of white exposure at low cost, and has good commercial value and application prospect.
As a further improvement of the invention, the decorative adhesive film is a pressure-sensitive adhesive film with high elasticity.
The beneficial effect of adopting above-mentioned technical scheme is: the decorative adhesive film with high elasticity is selected, is greatly stretched and is not easy to break or deform when reversely coated, and is beneficial to keeping the compact feeling of the surface of a coated finished product for a long time; secondly, the use boundary of the material is broken through, the requirement of complete coating can be met by using a thicker pressure-sensitive adhesive film, the cost is greatly reduced, and the hot-melt adhesive film is only 1/4 of the special hot-melt adhesive film for the decoration outside the mold, so that the economic benefit is good; in addition, the decorative films of the pressure-sensitive adhesive system are rich in types and diversified in colors, and the decorative patterns have more choices, so that different aesthetic requirements can be better met.
As a further improvement of the present invention, in the step (2), the material fixing unit is fixed on a telescopic platform which is arranged in the sealable cavity, and under the telescopic driving of the telescopic platform, the material fixing unit bears the material which extends out of the opening of the sealable cavity or retracts into the sealable cavity.
The beneficial effect of adopting above-mentioned technical scheme is: the platform that bears material fixed unit is flexible platform, helps only accomplishing the cladding of decoration glued membrane through the flexible of platform, reduces the action design of decoration glued membrane, easy operation, easily control.
As a further improvement of the present invention, in the step (2), a gap between a portion to be coated below the marking line on the male mold surface of the material and the side surface of the material fixing unit is different due to different materials of the material, and the gap between the elastic material and the side surface of the material fixing unit is smaller than the gap between the inelastic material and the side surface of the material fixing unit.
The beneficial effect of adopting above-mentioned technical scheme is: according to the characteristic of material and set for the clearance of material public mode face and material fixed unit side, the demand that can be more accurate satisfy the different ways of releasing of different material materials.
As a still further improvement of the present invention, in the step (2), an area of a gap between the side surface of the material fixing unit and the male surface of the material defined on the male surface is larger than an area of a mark line on the male surface defined on the male surface.
The beneficial effect of adopting above-mentioned technical scheme is: the actual coating area of the decorative adhesive film on the male die surface of the material is slightly larger than the preset coating area, so that the decorative adhesive film is favorably and completely coated in the preset coating area, and the influence of the edge effect on the coating quality is avoided.
As a further improvement of the present invention, in the step (3), the decorating adhesive film is baked by a baking device with a one-way opening in a second closed environment, and after the decorating adhesive film is fixed at the opening of the closed cavity, the baking device presses the decorating adhesive film from the outside of the closable cavity in a direction that the one-way opening faces the decorating adhesive film, so that the decorating adhesive film and the decorating adhesive film form the second closed environment.
The beneficial effect of adopting above-mentioned technical scheme is: the preheating and baking device creates a closed environment for preheating and baking the decorative adhesive film, is beneficial to accurate heat application, reduces the influence of baking on other parts, and is more energy-saving and efficient.
A cladding device for decorating material adhesive film comprises: the film supporting device is used for supporting and fixing the decoration adhesive film and constructing a closed environment for the decoration adhesive film coating material and comprises a cavity and an air exhaust element, wherein the top and the side surface of the cavity are respectively provided with an opening and an air outlet, the decoration adhesive film is laid on the top of the cavity and completely covers the opening of the top, and the air exhaust element is arranged at the air outlet of the cavity; the bearing device is arranged inside the hollow cavity of the film supporting device and used for fixing and carrying the material, and comprises a lifting platform and a material fixing unit, wherein the lifting platform comprises a fixed section and a telescopic section, the fixed section of the lifting platform is fixedly penetrated through the bottom surface inside the film supporting device, the end part of the fixed section is fixedly connected with the external ground, the telescopic section of the lifting platform is positioned inside the film supporting device, the top of the telescopic section is provided with a flat plate, the material fixing unit is fixed on the flat plate, the side surface of the material fixing unit, which is opposite to the preset coating area of the material male die surface, is provided with a groove, and the projection of a marking line on the material male die surface on the side surface of the material fixing unit is completely positioned in the groove area; the heating device is arranged adjacent to and corresponding to the film supporting device, comprises a heating cavity with a one-way opening and a heating unit arranged in the heating cavity structure, and is used for constructing a closed baking environment for the decoration adhesive film and providing a baking heat source; the post-processing device is used for receiving the material coated with the decoration adhesive film and carrying out ending processing, and comprises a cutting device, wherein the cutting device is used for cutting redundant decoration adhesive films along the marking lines on the male die surface of the material.
The beneficial effect of adopting above-mentioned technical scheme is: this cladding device is equipped with the fixed unit of dedicated material on the basis of the traditional cladding demand that satisfies the material, and the side of the fixed unit of material sets up the recess of certain degree of depth, can further satisfy the cladding technology demand of not revealing white of material, and the cladding device process integrates the degree higher, and the configuration is simple, and the cost is lower, decorates the high efficiency, easily volume production.
As a further improvement of the invention, the material fixing unit is of an I-shaped structure with thick two ends and thin middle and is divided into an upper boss, a waist column and a lower boss, and the distance between the male die surface of the material and the nearest point of the side surface of the waist column ranges from 3mm to 10 mm.
The beneficial effect of adopting above-mentioned technical scheme is: according to the experience accumulated in mass production practice, the range of the distance between the male die surface of the material and the nearest point on the side surface of the waist column is 3-10 mm, the requirement for controlling the plastic suction direction of the decoration adhesive film can be met, the coating area of the decoration adhesive film on the material fixing unit can be effectively reduced, the waste of the adhesive film is reduced, and the high practicability and the high economy are achieved.
As a further improvement of the invention, the distance between the lowest point of the joint surface of the material and the upper surface of the lower boss ranges from 15mm to 40 mm.
The beneficial effect of adopting above-mentioned technical scheme is: the materials with different characteristics have range requirements on the distance between the joint surface of the materials and the upper surface of the lower boss, the coating direction of the decoration adhesive film cannot be controlled easily due to too large or too small distance, the distance range is set to be 15-40 mm according to the characteristics of the materials with different materials through production practice verification, the requirement for controlling the plastic suction direction of the decoration adhesive film can be met, the waste of the adhesive film can be effectively reduced, and the comprehensive index is optimal.
As a further improvement of the present invention, the bearing device further comprises an exhaust channel, wherein an air inlet of the exhaust channel is arranged on the lower surface of the upper boss and sequentially passes through the upper boss, the lower boss of the lumbar column and the top flat plate of the lifting platform of the material fixing unit.
The beneficial effect of adopting above-mentioned technical scheme is: the setting of exhaust passage helps discharging the gas in the clearance in the process of decoration glued membrane cladding material public mould face, reduces the influence of gas to material cladding effect, effectively promotes the firm degree and the cladding speed of cladding.
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 it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
FIG. 1 is a schematic view of the coating process of the present invention.
FIG. 2 is a schematic view of a coating apparatus according to the present invention.
FIG. 3 is a schematic covering diagram of the covering device of the present invention.
FIG. 4 is a schematic view of the coating apparatus post-treatment of the present invention.
Fig. 5 is an enlarged view of a portion of the material coating according to the present invention.
FIG. 6 is a schematic diagram of the cladding result of the present invention.
The corresponding part names indicated by the numbers in the figures are as follows:
Detailed Description
In order to facilitate an understanding of the invention, the invention will be described more fully and in detail below with reference to the accompanying drawings and preferred embodiments, but the scope of the invention is not limited to the specific embodiments below. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In order to realize the purpose of the invention, the technical scheme provided by the invention is as follows:
as shown in fig. 1, 5-6, a coating process for decorating a material adhesive film comprises the following steps: step (1): determining the coating range of a decorative adhesive film 02 according to a female mold surface 011, a joint surface 012 and a male mold surface 013 of a material 01, wherein the edge of the decorative adhesive film 02 at least exceeds the joint surface 012 of the material 01 to a designated position of the male mold surface 013, marking lines are defined, the material 01 is to-be-decorated, the female mold surface 011 and the male mold surface 013 are respectively an outer surface of the material 01 and a back surface opposite to the outer surface, the joint surface 012 is a transition surface between the outer surface and the back surface of the material 01, and the decorative adhesive film 02 is an adhesive film with a self-adhesive function for decorating the material 01; step (2): selecting a material fixing unit according to the determined coating range of the material 01, placing the material fixing unit in a sealable cavity, fixing the material 01 on the top of the material fixing unit by taking a male die surface 013 as a fixing surface, and forming a certain gap between a part to be coated below a marking line on the material male die surface 013 and the side surface of the material fixing unit; and (3): unfolding the decoration adhesive film 02, fixing the decoration adhesive film at the opening of the sealable cavity in the direction that the bonding surface faces inwards to finish the sealing of the sealable cavity, and baking the decoration adhesive film 02 from the outside of the sealable cavity; and (4): pumping out the gas in the closed cavity, moving the material 01 towards the decoration adhesive film 02 direction until the material 01 entirely exceeds the surface fixed by the decoration adhesive film 02 at the opening of the closed cavity, and coating the decoration adhesive film 02 on the female die surface 011, the joint surface and part of the male die surface of the material under the pressure of the internal and external pressure difference; and (5): and (4) post-processing, cutting the redundant decorative adhesive film exceeding the marking line on the male die surface of the material, and finishing the material coating to obtain the coating effect shown in figure 6.
The beneficial effect of adopting above-mentioned technical scheme is: the technical scheme is simple in process, can achieve high-quality effect and thoroughly solve the problem of white exposure at low cost, and has good commercial value and application prospect.
In other embodiments of the present invention, the decorative adhesive film 02 is a pressure-sensitive adhesive film having high elasticity.
The beneficial effect of adopting above-mentioned technical scheme is: the decorative adhesive film with high elasticity is selected, is greatly stretched and is not easy to break or deform when reversely coated, and is beneficial to keeping the compact feeling of the surface of a coated finished product for a long time; secondly, the use boundary of the material is broken through, the requirement of complete coating can be met by using a thicker pressure-sensitive adhesive film, the cost is greatly reduced, and the hot-melt adhesive film is only 1/4 of the special hot-melt adhesive film for the decoration outside the mold, so that the economic benefit is good; in addition, the decorative films of the pressure-sensitive adhesive system are rich in types and diversified in colors, and the decorative patterns have more choices, so that different aesthetic requirements can be better met.
In other embodiments of the present invention, in the step (2), the material fixing unit is fixed on a telescopic platform which is arranged in the sealable cavity, and under the telescopic driving of the telescopic platform, the material fixing unit bears the material which extends out of the opening of the sealable cavity or retracts into the sealable cavity.
The beneficial effect of adopting above-mentioned technical scheme is: the platform that bears material fixed unit is flexible platform, helps only accomplishing the cladding of decoration glued membrane through the flexible of platform, reduces the action design of decoration glued membrane, easy operation, easily control.
In other embodiments of the present invention, in step (2), the gap between the part of the male surface 013 of the material to be covered below the mark line and the side surface of the material fixing unit is different according to the material, and the gap between the elastic material and the side surface of the material fixing unit is smaller than the gap between the inelastic material and the side surface of the material fixing unit.
The beneficial effect of adopting above-mentioned technical scheme is: according to the characteristic of material and set for the clearance of material public mode face and material fixed unit side, the demand that can be more accurate satisfy the different ways of releasing of different material materials.
In other embodiments of the invention, the space between the side of the material holding unit and the male surface 013 of the material in step (2) defines a larger area on the male surface 013 than the area on the male surface 013 defined by the marking lines on the male surface of the material.
The beneficial effect of adopting above-mentioned technical scheme is: the actual coating area of the decorative adhesive film on the male die surface of the material is slightly larger than the preset coating area, so that the decorative adhesive film is favorably and completely coated in the preset coating area, and the influence of the edge effect on the coating quality is avoided.
In other embodiments of the present invention, in the step (3), the decorating adhesive film 02 is baked by the baking device with one-way opening in the second closed environment, and after the decorating adhesive film 02 is fixed at the opening of the closed cavity, the baking device presses the decorating adhesive film 02 from the outside of the closed cavity in the direction of the one-way opening toward the decorating adhesive film, so as to form the second closed environment with the decorating adhesive film 02.
The beneficial effect of adopting above-mentioned technical scheme is: the preheating and baking device creates a closed environment for preheating and baking the decorative adhesive film, is beneficial to accurate heat application, reduces the influence of baking on other parts, and is more energy-saving and efficient.
As shown in fig. 2 and 4, a wrapping apparatus for decorating a material film comprises: the film supporting device 1 is used for supporting, fixing and covering the decorative adhesive film 02 and constructing a closed environment for the decorative adhesive film 02 to coat a material 01, and comprises a cavity 11 and an air exhaust element 12, wherein the top and the side surface of the cavity 11 are respectively provided with an opening and an air outlet, the decorative adhesive film 02 is laid on the top of the cavity 11 and completely covers the opening on the top, and the air exhaust element 12 is arranged at the air outlet of the cavity 11; the bearing device 2 is arranged inside the hollow cavity 11 of the film supporting device 1 and used for fixing and carrying a material 01 and comprises a lifting platform 21 and a material fixing unit 22, wherein the lifting platform 21 comprises a fixed section and a telescopic section, the fixed section of the lifting platform 21 penetrates through and is fixed on the bottom surface inside the film supporting device 1, the end part of the fixed section is fixedly connected with the external ground, the telescopic section of the lifting platform 21 is positioned inside the film supporting device 1, the top of the telescopic section is provided with a flat plate 211, the material fixing unit 22 is fixed on the flat plate 211, a groove is formed in the side surface of the material fixing unit 22 opposite to a preset coating area of a material male mold surface 013, and the projection of a marking line on the material male mold surface 013 on the side surface of the material fixing unit 22 is completely positioned; the heating device 3 is arranged adjacent to and corresponding to the film supporting device 1, comprises a heating cavity 31 with a one-way opening and a heating unit 32 arranged in the heating cavity 31, and is used for constructing a closed baking environment for the decoration adhesive film 02 and providing a baking heat source; the post-processing device 4 is used for receiving the material 01 coated with the decorative adhesive film 02 and carrying out ending processing, and comprises a cutting device 41, wherein the cutting device 41 cuts redundant decorative adhesive films along the marking lines on the material male die surface 013.
The beneficial effect of adopting above-mentioned technical scheme is: this cladding device is equipped with the fixed unit of dedicated material on the basis of the traditional cladding demand that satisfies the material, and the side of the fixed unit of material sets up the recess of certain degree of depth, can further satisfy the cladding technology demand of not revealing white of material, and the cladding device process integrates the degree higher, and the configuration is simple, and the cost is lower, decorates the high efficiency, easily volume production.
In other embodiments of the present invention, the material fixing unit 22 has an i-shaped structure with thick ends and a thin middle, and is divided into an upper boss, a lumbar column and a lower boss, and a distance between the male mold surface 013 of the material and the closest point on the side of the lumbar column is 3mm to 10 mm.
The beneficial effect of adopting above-mentioned technical scheme is: according to the experience accumulated in mass production practice, the range of the distance between the male die surface of the material and the nearest point of the side surface of the waist column is 3-10 mm, the requirement for controlling the direction of the decoration plastic film can be met, the covering area of the decoration plastic film on the material fixing unit can be effectively reduced, the waste of the plastic film is reduced, and the plastic film has good practicability and economy.
In another embodiment of the present invention, the distance between the lowest point of the engagement surface 012 of the material and the upper surface of the lower boss is 15mm to 40 mm.
The beneficial effect of adopting above-mentioned technical scheme is: the materials with different characteristics have range requirements on the distance between the joint surface of the materials and the upper surface of the lower boss, the coating direction of the decoration adhesive film cannot be controlled easily due to too large or too small distance, the distance range is set to be 15-40 mm according to the characteristics of the materials with different materials through production practice verification, the requirement for controlling the plastic suction direction of the decoration adhesive film can be met, the waste of the adhesive film can be effectively reduced, and the comprehensive index is optimal.
In other embodiments of the present invention, as shown in fig. 3, the carrying device 2 further includes an exhaust channel 23, an air inlet of the exhaust channel 23 is disposed on a lower surface of the upper boss, and sequentially passes through the upper boss of the material fixing unit 22, the lumbar column lower boss, and the top plate 211 of the lifting platform.
The beneficial effect of adopting above-mentioned technical scheme is: the setting of exhaust passage helps discharging the gas in the clearance in the process of decoration glued membrane cladding material public mould face, reduces the influence of gas to material cladding effect, effectively promotes the firm degree and the cladding speed of cladding.
The above embodiments are merely illustrative of the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the content of the present invention and implement the present invention, and not to limit the scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered in the scope of the present invention.
Claims (10)
1. A coating process for material adhesive film decoration is characterized by comprising the following steps:
step (1): determining the coating range of a decoration adhesive film according to a female die surface, a joint surface and a male die surface of a material, wherein the edge of the decoration adhesive film at least exceeds the joint surface of the material to the designated position of the male die surface, marking lines are drawn, the material is to-be-decorated, the female die surface and the male die surface are respectively an outer surface of the material and a back surface opposite to the outer surface, the joint surface is a transition surface between the outer surface and the back surface of the material, and the decoration adhesive film is an adhesive film with a self-adhesion function for decorating the material;
step (2): selecting a material fixing unit according to the determined coating range of the material, placing the material fixing unit in a sealable cavity, fixing the material on the top of the material fixing unit by taking a male die surface as a fixing surface, and forming a certain gap between a part to be coated below a marking line on the male die surface of the material and the side surface of the material fixing unit;
and (3): unfolding the decoration adhesive film, fixing the decoration adhesive film at the opening of the closable cavity in the direction that the bonding surface faces inwards to finish the closing of the closable cavity, and baking the decoration adhesive film from the outside of the closed cavity;
and (4): pumping out the gas in the closed cavity, moving the material to the decoration glue film direction until the material entirely exceeds the surface fixed by the decoration glue film at the opening of the closed cavity, and coating the decoration glue film on the female die surface, the joint surface and part of the male die surface of the material under the pressure of internal and external pressure difference;
and (5): and post-processing, namely cutting redundant decoration glue films exceeding the marking lines on the male die surface of the material, and finishing the material coating.
2. The coating process for material film decoration according to claim 1, wherein the decoration film is a pressure sensitive film with high elasticity.
3. The coating process for material adhesive film decoration according to claim 2, wherein in the step (2), the material fixing unit is fixed on a telescopic platform arranged in the sealable cavity, and under the telescopic driving of the telescopic platform, the material fixing unit bears the material to extend out of the opening of the sealable cavity or retract into the sealable cavity.
4. The coating process for material film decoration according to claim 3, wherein the gap between the part to be coated below the mark line on the male mold surface of the material and the side surface of the material fixing unit in step (2) is different due to different materials of the material, and the gap between the elastic material and the side surface of the material fixing unit is smaller than the gap between the inelastic material and the side surface of the material fixing unit.
5. The covering process for material film decoration according to claim 4, wherein the area of the area defined on the male mold surface by the gap between the side surface of the material fixing unit and the male mold surface of the material in the step (2) is larger than the area of the area defined on the male mold surface by the mark line on the male mold surface of the material.
6. The coating process for material adhesive film decoration according to claim 5, wherein in the step (3), the decorating adhesive film is baked in a second closed environment by a baking device with one-way opening, and after the decorating adhesive film is fixed at the opening of the closed cavity, the baking device presses the decorating adhesive film from the outside of the closable cavity in the direction of the one-way opening toward the decorating adhesive film, so as to form the second closed environment together with the decorating adhesive film.
7. The utility model provides a cladding device for material glued membrane is decorated which characterized in that includes:
the film supporting device is used for supporting and fixing the decoration adhesive film and constructing a closed environment for the decoration adhesive film coating material and comprises a cavity and an air exhaust element, wherein the top and the side surface of the cavity are respectively provided with an opening and an air outlet, the decoration adhesive film is laid on the top of the cavity and completely covers the opening of the top, and the air exhaust element is arranged at the air outlet of the cavity;
the bearing device is arranged inside the hollow cavity of the film supporting device and used for fixing and carrying the material, and comprises a lifting platform and a material fixing unit, wherein the lifting platform comprises a fixed section and a telescopic section, the fixed section of the lifting platform is fixedly penetrated through the bottom surface inside the film supporting device, the end part of the fixed section is fixedly connected with the external ground, the telescopic section of the lifting platform is positioned inside the film supporting device, the top of the telescopic section is provided with a flat plate, the material fixing unit is fixed on the flat plate, the side surface of the material fixing unit, which is opposite to the preset coating area of the material male die surface, is provided with a groove, and the projection of a marking line on the material male die surface on the side surface of the material fixing unit is completely positioned in the groove area;
the heating device is arranged adjacent to and corresponding to the film supporting device, comprises a heating cavity with a one-way opening and a heating unit arranged in the heating cavity structure, and is used for constructing a closed baking environment for the decoration adhesive film and providing a baking heat source;
the post-processing device is used for receiving the material coated with the decoration adhesive film and carrying out ending processing, and comprises a cutting device, wherein the cutting device is used for cutting redundant decoration adhesive films along the marking lines on the male die surface of the material.
8. The wrapping device for material adhesive film decoration according to claim 7, wherein the material fixing unit is of an I-shaped structure with thick ends and thin middle, and is divided into an upper boss, a waist pillar and a lower boss, and the distance between the male mold surface of the material and the closest point of the side surface of the waist pillar ranges from 3mm to 10 mm.
9. The covering device for material film decoration according to claim 8, wherein the distance between the lowest point of the joint surface of the material and the upper surface of the lower boss is in the range of 15mm to 40 mm.
10. The wrapping device for material film decoration according to claim 9, wherein the carrier device further comprises an exhaust channel, and an air inlet of the exhaust channel is arranged on a lower surface of the upper boss and sequentially passes through the upper boss, the lower boss and the top plate of the lifting platform of the material fixing unit.
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| CN202010314552.5A CN111605166A (en) | 2020-04-20 | 2020-04-20 | Coating process and coating device for material adhesive film decoration |
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Application publication date: 20200901 |