Surface treatment laminating equipment

Abstract

The invention provides surface treatment laminating equipment which comprises a first discharging shaft and a first tensioning roller which are used for discharging a base material, and further comprises a second discharging shaft and a second tensioning roller which are used for discharging a surface adhesive, and a laminating structure for compounding the base material and the surface adhesive is arranged on the downstream of the first tensioning roller and the second tensioning roller. A corona machine is arranged between the first tensioning roller and the attaching structure or / and between the second tensioning roller and the attaching structure, a corona spray gun is arranged in the corona machine, a gun head is arranged at the front end of the corona spray gun, the corona spray gun can compress air and generate a high-frequency electric field or an electromagnetic field, and chemical bonds are formed on the surface of the base material or the surface glue after the air is sprayed out through the gun head. According to the surface treatment laminating production equipment, adhesive tape production procedures can be reduced, and the adhesive tape bonding effect and the yield are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of surface treatment, and in particular to a surface treatment laminating device. Background Art

[0002] When making the tape, the base material and the adhesive layer of the tape need to be bonded. The existing technology has as many as 5 product processes in the bonding process, and the bonding process is complicated. The original corona machine equipment has poor interlayer bonding strength between the light-curing acrylic base material and the thermosetting acrylic surface adhesive of the tape, so a primer method is often used to solve it. The primer method requires a primer treatment on the light-curing acrylic base material. This treatment not only wastes a lot of materials and has many defective products, but also has a general bonding effect.

[0003] Therefore, it is particularly important to invent a surface treatment bonding device with good bonding effect and saved process for bonding the light-curing acrylic substrate and the heat-curing acrylic surface adhesive of the tape. Summary of the invention

[0004] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a surface treatment bonding production equipment that can reduce the production process of the tape and improve the adhesive effect and yield of the tape.

[0005] The objective of the present invention is achieved through the following technical solutions:

[0006] A surface treatment laminating device comprises a first discharge shaft and a first tensioning roller for discharging a substrate, and also comprises a second discharge shaft and a second tensioning roller for discharging a surface adhesive. A laminating structure for compounding the substrate and the surface adhesive is provided downstream of the first tensioning roller and the second tensioning roller. A corona machine is provided between the first tensioning roller and the laminating structure or / and between the second tensioning roller and the laminating structure. A corona spray gun is provided in the corona machine. A gun head is provided at the front end of the corona spray gun. The corona spray gun can compress air and generate a high-frequency electric field or electromagnetic field, and after being sprayed out by the gun head, chemical bonds are formed on the surface of the substrate or the surface adhesive.

[0007] As described above, the surface treatment laminating equipment, the corona machine is provided with at least one corona roller, the corona roller is used to pull the substrate guided out by the first tensioning roller or the surface glue guided out by the second tensioning roller, the gun head of the corona spray gun is located in the radial direction of the corona roller and acts on the substrate or surface glue pulled on the corona roller.

[0008] As the surface treatment laminating equipment as described above, the corona machine is provided with a first traction roller assembly and a second traction roller assembly, the first traction roller assembly is used to pull the substrate guided out by the first tensioning roller or the surface adhesive guided out by the second tensioning roller, the corona roller is located between the first traction roller assembly and the second traction roller assembly, and the second traction roller assembly pulls the substrate or the surface adhesive guided out by the corona roller to the laminating structure accordingly.

[0009] In the surface treatment laminating equipment as described above, two corona rollers arranged in series are provided between the first pulling roller assembly and the second pulling roller assembly, and each of the corona rollers is provided with at least two corona spray guns correspondingly in the radial direction.

[0010] In the surface treatment laminating equipment as described above, the gun head is a rake-shaped gun head extending axially toward the corona roller and widening along the circumferential direction of the corona roller.

[0011] The surface treatment laminating equipment as described above, the laminating structure includes a first laminating roller, a second laminating roller and a laminating channel located between the first laminating roller and the second laminating roller; the first laminating roller is used to adsorb the substrate wound thereon, the first laminating roller drives the substrate to rotate into the laminating channel, and together with the second laminating roller, extrude the substrate and the surface adhesive passing through the laminating channel; the second laminating roller is used to adsorb the surface adhesive wound thereon, the second laminating roller drives the surface adhesive to rotate into the laminating channel, and together with the first laminating roller, extrude the surface adhesive and the substrate passing through the laminating channel.

[0012] In the surface treatment laminating equipment as described above, a material transfer shaft for transferring the substrate and / or the surface adhesive from the corresponding corona machine is provided between the corona machine and the laminating structure.

[0013] In the surface treatment laminating equipment as described above, a receiving roller is provided downstream of the laminating structure.

[0014] The working principle of the corona spray gun of the present invention is as follows: the corona spray gun ionizes the input gas through compressed air and the action of a high-frequency electric field or an electromagnetic field. Ionization can cause molecules or atoms in the gas to lose or gain electrons, thereby forming charged ions and free electrons. The charged ions react with the surface to be treated. The reaction can be a collision between ions and surface atoms or molecules, or ions move to the surface through the action of an electric field. After the reaction occurs on the surface, chemical bonds on the surface are caused, thereby increasing adhesion.

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] The surface treatment and laminating production equipment of the present invention can reduce the production process of adhesive tape and improve the adhesive tape bonding effect and yield rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of a surface treatment bonding device in an embodiment of the present invention;

[0018] Figure 2 It is a schematic diagram of a corona machine in a surface treatment laminating device in an embodiment of the present invention;

[0019] Figure 3 for Figure 2 A local enlarged schematic diagram of point A in the middle. DETAILED DESCRIPTION

[0020] The present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0021] like Figure 1-3 As shown, a surface treatment bonding device in the present invention includes a first discharge shaft 1 and a first tensioning roller 2 for discharging a substrate, and also includes a second discharge shaft 3 and a second tensioning roller 4 for discharging a surface adhesive. A bonding structure 5 in which the substrate and the surface adhesive are composited is provided downstream of the first tensioning roller 2 and the second tensioning roller 4. A corona machine 6 is provided between the first tensioning roller 2 and the bonding structure 5 or / and between the second tensioning roller 4 and the bonding structure 5. A corona spray gun 61 is provided in the corona machine 6. A gun head 611 is provided at the front end of the corona spray gun 61. The corona spray gun 61 can compress air to generate a high-frequency electric field or an electromagnetic field, and after being sprayed out through the gun head 611, chemical bonds are formed on the surface of the substrate or the surface adhesive.

[0022] In the present invention, after the substrate is discharged from the first discharge shaft 1, it is pulled into the corona machine 6 through the first tension roller 2, and after the high-frequency electric field or electromagnetic field sprayed from the gun head 611 of the corona spray gun 61 in the corona machine 6 acts, chemical bonds are formed on the surface of the substrate; at the same time, after the surface adhesive is discharged from the second discharge shaft 3, it is pulled or not pulled into the corona machine 6 through the second tension roller 4, and finally the substrate and the surface adhesive immediately enter the downstream bonding structure 5 for bonding; because the treatment of the corona machine 6 forms chemical bonds on the surface of the substrate and / or the surface adhesive, the adhesion of the substrate and / or the surface adhesive is increased, so the substrate and the surface adhesive can be well compounded and firmly in the bonding structure 5. In this way, the bonding process of the tape product is reduced, the generation of defective products is reduced, and the production effect and work efficiency are improved.

[0023] The working principle of the corona spray gun 61 in this embodiment is as follows: the corona spray gun 61 ionizes the input gas through compressed air and through the action of a high-frequency electric field or an electromagnetic field. Ionization can cause the molecules or atoms in the gas to lose or gain electrons, thereby forming charged ions and free electrons. The charged ions will react with the surface to be treated (substrate or surface adhesive); the reaction can be a collision between ions and surface atoms or molecules, or the ions can be moved to the surface of the substrate or surface adhesive through the action of the electric field. After the reaction occurs on the surface, it will cause chemical bonds on the surface, thereby increasing adhesion.

[0024] like Figure 2As shown, at least one corona roller 62 is provided on the corona machine 6, and the corona roller 62 is used to pull the substrate derived from the first tension roller 2 or the surface adhesive derived from the second tension roller 4, and the gun head 611 of the corona spray gun 61 is located in the radial direction of the corona roller 62 and acts on the substrate or the surface adhesive pulled by the corona roller 62. In this embodiment, due to the traction of the corona roller 62, the high-frequency electric field or electromagnetic field sprayed by the gun head 611 can be more fully sprayed on the substrate or the surface adhesive, so that the chemical bonds are better formed on the surface, and the adhesion is further enhanced.

[0025] Furthermore, the corona machine 6 is provided with a first traction roller assembly 63 and a second traction roller assembly 64. The first traction roller assembly 63 is used to pull the substrate exported by the first tensioning roller 2 or the surface glue exported by the second tensioning roller 4. The corona roller 62 is located between the first traction roller assembly 63 and the second traction roller assembly 64. The second traction roller assembly 64 pulls the substrate or the surface glue exported by the corona roller 62 to the bonding structure 5 accordingly.

[0026] Specifically, two corona rollers 62 are arranged in series between the first traction roller assembly 63 and the second traction roller assembly 64, and at least two corona spray guns 61 are correspondingly arranged in the radial direction of each corona roller 62. The corona rollers 62 arranged in series can perform corona treatment on the surface of the substrate or the surface adhesive for multiple times, so that the adhesion of the substrate or the surface adhesive surface is more uniform, so that it is more firmly compounded in the bonding structure 5, and the interlayer bonding force between the substrate or the surface adhesive is enhanced.

[0027] More specifically, Figure 2-Figure 3 As shown, the gun head 611 is a rake-shaped gun head that extends axially toward the corona roller 62 and widens along the circumferential direction of the corona roller 62. This increases the area of ​​the base material or the surface adhesive on the corona roller 62 that the gun head acts on, further improving the efficiency of the corona.

[0028] like Figure 2 As shown, in this embodiment, the laminating structure 5 includes a first laminating roller 51, a second laminating roller 52 and a laminating channel 53 located between the first laminating roller 51 and the second laminating roller 52; the first laminating roller 51 is used to adsorb the substrate wound thereon, the first laminating roller 51 drives the substrate to rotate into the laminating channel 53, and together with the second laminating roller 52, squeezes the substrate and the surface adhesive through the laminating channel 53; the second laminating roller 52 is used to adsorb the surface adhesive wound thereon, the second laminating roller 52 drives the surface adhesive to rotate into the laminating channel 53, and together with the first laminating roller 51, squeezes the surface adhesive and the substrate through the laminating channel 53.

[0029] In this embodiment, a material transfer shaft 7 for transferring the substrate and / or the surface adhesive from the corresponding corona machine 6 is provided between the corona machine 6 and the laminating structure 5. A receiving roller 8 is provided downstream of the laminating structure 5, and the receiving roller 8 rolls up the laminating adhesive tape for subsequent processing.

[0030] Application Example 1

[0031] The photocurable acrylic foam substrate is discharged through the first discharge shaft 1, and then pulled into the corona machine 6 through the first tensioning roller 2. The thermosetting acrylic surface adhesive is discharged through the second discharge shaft 3, and then pulled into the corona machine 6 through the second tensioning roller 4. The corona machine 6 corresponding to the photocurable acrylic foam substrate is turned on (only the photocurable acrylic foam substrate is processed), and the substrate is bonded through the bonding structure 5 and wound up at the receiving roller 8.

[0032] Application Example 2

[0033] The photocurable acrylic foam substrate is discharged through the first discharge shaft 1, and then pulled into the corona machine 6 through the first tensioning roller 2. The thermosetting acrylic surface adhesive is discharged through the second discharge shaft 3, and then pulled into the corona machine 6 through the second tensioning roller 4. The corona machine 6 corresponding to the thermosetting acrylic surface adhesive is turned on (only thermosetting acrylic surface adhesive is processed), and the adhesive is bonded through the bonding structure 5 and wound up at the receiving roller 8.

[0034] Application Example 3

[0035] The photocurable acrylic foam substrate is discharged through the first discharge shaft 1, and then pulled into the corona machine 6 through the first tensioning roller 2. The thermosetting acrylic surface adhesive is discharged through the second discharge shaft 3, and then pulled into the corona machine 6 through the second tensioning roller 4. The corona machines 6 corresponding to the photocurable acrylic foam substrate and the thermosetting acrylic surface adhesive are opened respectively, and the bonding is carried out through the bonding structure 5, and the materials are wound up at the receiving roller 8.

[0036] Application comparison

[0037] The light-curing acrylic foam substrate is coated with a primer through a coating machine, and then laminated and rolled with the thermosetting acrylic surface adhesive.

[0038] Performance Testing

[0039] The adhesive tapes prepared in the application examples and the application comparative examples were subjected to performance tests, and the test results were recorded in Table 1.

[0040] Test items and test methods:

[0041] The steel plate peeling force test is carried out using a peeling force test machine, referring to GB / T2792-2014;

[0042] The steel plate holding force test is carried out using a high temperature holding force testing machine, referring to GB / T4851-2014;

[0043] The dynamic shear force of the steel plate is tested using a peel force tester, referring to GB / T33332-2016;

[0044] Steel plate aging peeling force test Peeling force test machine is used for testing, refer to GB / T32368-2015.

[0045] Table 3 Performance test results of application examples and comparative examples

[0046]

[0047]

[0048] Note: AF in Table 3 represents interface damage; AN represents substrate debonding.

[0049] Test result description and principle explanation:

[0050] According to the test results, the interlayer bonding force and test effect of Application Example 3 are the best, that is, when both the substrate and the surface adhesive are treated by the corona machine of the present invention, the performance of the produced tape is optimal; in Application Examples 1 and 2, only one of the surface adhesive or the substrate is treated by the corona machine, and its performance test effect is not as good as that of Application Example 3, but is far better than the tape made of the substrate and surface adhesive treated with the primer in the comparative example.

[0051] It can be seen that the surface treatment and bonding production equipment of the present invention can reduce the production process of the tape and improve the adhesive effect and yield rate of the tape.

Claims

1. A surface treatment laminating device, comprising a first discharge shaft (1) and a first tension roller (2) for discharging a substrate, and also comprising a second discharge shaft (3) and a second tension roller (4) for discharging a surface adhesive, wherein a laminating structure (5) for laminating the substrate and the surface adhesive is provided downstream of the first tension roller (2) and the second tension roller (4), characterized in that A corona machine (6) is provided between the first tensioning roller (2) and the laminating structure (5) or / and between the second tensioning roller (4) and the laminating structure (5), wherein a corona spray gun (61) is provided inside the corona machine (6), and a gun head (611) is provided at the front end of the corona spray gun (61). The corona spray gun (61) can compress air to generate a high-frequency electric field or electromagnetic field, and after being sprayed out through the gun head (611), chemical bonds are formed on the surface of the substrate or the surface adhesive.

2. The surface treatment laminating device according to claim 1, characterized in that The corona machine (6) is provided with at least one corona roller (62), and the corona roller (62) is used to pull the substrate guided out by the first tensioning roller (2) or the surface adhesive guided out by the second tensioning roller (4). The gun head (611) of the corona spray gun (61) is located in the radial direction of the corona roller (62) and acts on the substrate or the surface adhesive pulled by the corona roller (62).

3. The surface treatment laminating device according to claim 2, characterized in that The corona machine (6) is provided with a first traction roller assembly (63) and a second traction roller assembly (64), wherein the first traction roller assembly (63) is used to pull the substrate guided out by the first tensioning roller (2) or the surface adhesive guided out by the second tensioning roller (4), and the corona roller (62) is located between the first traction roller assembly (63) and the second traction roller assembly (64), and the second traction roller assembly (64) pulls the substrate or the surface adhesive guided out by the corona roller (62) to the bonding structure (5).

4. The surface treatment laminating device according to claim 2, characterized in that Two corona rollers (62) arranged in series are provided between the first traction roller assembly (63) and the second traction roller assembly (64), and each of the corona rollers (62) is provided with at least two corona spray guns (61) in a radial direction thereof.

5. The surface treatment laminating device according to claim 2, characterized in that The gun head (611) is a rake-shaped gun head that extends axially toward the corona roller (62) and widens along the circumferential direction of the corona roller (62).

6. The surface treatment laminating device according to claim 1, characterized in that The laminating structure (5) comprises a first laminating roller (51), a second laminating roller (52) and a laminating channel (53) located between the first laminating roller (51) and the second laminating roller (52); the first laminating roller (51) is used to absorb the substrate wound thereon, the first laminating roller (51) drives the substrate to rotate into the laminating channel (53), and together with the second laminating roller (52) extrude the substrate and the surface adhesive through the laminating channel (53); the second laminating roller (52) is used to absorb the surface adhesive wound thereon, the second laminating roller (52) drives the surface adhesive to rotate into the laminating channel (53), and together with the first laminating roller (51) extrude the surface adhesive and the substrate through the laminating channel (53).

7. The surface treatment laminating device according to claim 1, characterized in that A material transfer shaft (7) for transferring the substrate and / or the surface adhesive from the corresponding corona machine (6) is provided between the corona machine (6) and the laminating structure (5).

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