Electronic-grade glass fabric edge sealing and coating device

Abstract

The invention relates to the technical field of electronic-grade glass fabric processing, in particular to an electronic-grade glass fabric edge sealing and coating device. The edge sealing coating device comprises a coating wheel, a glue box with a top opening is arranged at the bottom of the coating wheel, the bottom face of the coating wheel is immersed in glue, a rotating shaft is arranged in the center of the coating wheel, one end of the rotating shaft is connected with the output end of a first motor, and the first motor is connected with an adjusting device. And the adjusting device can adjust the distance between the coating wheel and the surface of the glass fabric. The coating wheel is adopted to be in contact with glue and the surface of the glass fabric at the same time, the coating process is simplified, the stability of coating operation is improved, only the rotating speed of the material guiding wheel needs to be adjusted when the gluing amount is adjusted, and abrasion of the coating wheel in the running process is also reduced. The glue storage groove is formed in the side wall of the coating wheel, the depth of the glue storage groove is smaller than 2 mm, stable supply of glue can be guaranteed in the coating process, waste and accumulation of the glue can be avoided, the utilization rate of the glue is increased, and the production cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of electronic-grade glass fiber cloth processing, in particular to an electronic-grade glass fiber cloth edge sealing coating device. Background Art

[0002] Under the current situation of continuous expansion of the production scale of electronic-grade glass fiber cloth, as electronic products continue to develop towards miniaturization and high performance, the quality and performance requirements of electronic-grade glass fiber cloth have become increasingly stringent, which has led to the continuous increase in the output of electronic-grade glass fiber cloth. The industry competition has also become increasingly fierce, and the product specifications have also increased. On this basis, electronic-grade glass fiber edge banding cloth has begun to appear.

[0003] Traditional edge coating is a combination of a coating wheel for cutting resin edges and a feed wheel for steel materials. The coating wheel relies on a back support wheel for gluing. The edge tape in the glue box is brought to the coating wheel by rotating the feed wheel. The coating wheel rotates under the drive of the cloth surface and the back support wheel to press the glue into the inside of the cloth surface. The coating operation is completed by heating and drying the glue. This type of coating method performs the feed and coating operations separately, and the parameter settings between the two devices must be strictly controlled during operation. At the same time, this method squeezes the glue into the fiberglass cloth, and the pressure between the coating wheel and the back support wheel is also part of the gluing adjustment parameters. In addition, this method will cause certain damage to the coating wheel of the resin material due to the inconsistent rotation speed between the two wheels during use, affecting the edge quality and requiring a long time to replace, resulting in waste.

[0004] Based on this, the present invention provides an electronic-grade glass fiber cloth edge sealing coating device. Summary of the invention

[0005] The object of the present invention is to provide an electronic-grade glass fiber cloth edge sealing coating device, which can solve the above-mentioned technical problems, is simple and convenient to adjust, and prolongs the service life.

[0006] The present invention provides an electronic-grade glass fiber cloth edge sealing coating device, comprising a coating wheel, a glue box with a top opening is provided at the bottom of the coating wheel, the bottom surface of the coating wheel is immersed in glue, a rotating shaft is provided at the center of the coating wheel, one end of the rotating shaft is connected to the output end of a first motor, the first motor is connected to an adjusting device, and the adjusting device can adjust the distance between the coating wheel and the surface of the glass fiber cloth.

[0007] Preferably, the side wall of the coating wheel is provided with a glue storage groove, and the glue storage groove is a smooth arc-shaped groove.

[0008] Preferably, the glue storage groove has a depth of less than 2 mm.

[0009] Preferably, the coating wheel is immersed in the glue to a depth greater than the glue storage tank and less than 5 mm.

[0010] Preferably, the adjusting device is located below the first motor, and the adjusting device comprises a lead screw, the lead screw is threadedly connected to a nut seat, and the nut seat is fixedly connected to the first motor.

[0011] Preferably, the screw axis is perpendicular to the cloth surface.

[0012] Preferably, the raw materials of the glue include PU glue, water and a penetrant.

[0013] Preferably, the mass ratio of PU glue to water is 3:1, and the added amount of the penetrant is 5‰-7‰ of the sum of the mass of PU glue and water.

[0014] Preferably, the coating wheel has a diameter of 24-25 cm and a side width of 7-8 cm.

[0015] Preferably, the coating wheel is made of metal.

[0016] Beneficial effects:

[0017] The present invention uses a coating wheel to contact the glue and the glass fiber cloth surface at the same time, which simplifies the coating process, improves the stability of the coating operation, and only needs to adjust the speed of the feed wheel when adjusting the glue amount, which also reduces the wear of the coating wheel during operation. The side wall of the coating wheel is provided with a glue storage groove with a depth of less than 2mm, which can ensure a stable supply of glue during the coating process, and can also avoid the waste and accumulation of glue, thereby improving the utilization rate of glue and reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a front schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a back schematic diagram of the overall structure of the present invention;

[0021] Figure 3 It is a top view of the coating wheel in the present invention.

[0022] Description of reference numerals:

[0023] 1-cloth surface, 2-coating wheel, 3-glue storage tank, 4-glue box, 5-screw, 6-servo motor, 7-glue discharge hose, 8-rotating shaft, 9-first motor, 10-nut seat, 11-screw support seat. DETAILED DESCRIPTION

[0024] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0026] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] Example 1

[0028] like Figure 1-3As shown, an electronic grade glass fiber cloth edge sealing coating device includes a coating wheel 2, a rotating shaft 8 is provided at the center of the coating wheel 2, the rotating shaft 8 is parallel to the cloth surface 1, one end of the rotating shaft 8 is connected to the output end of the first motor 9, and the rotation speed of the coating wheel 2 can be adjusted by the first motor 9, thereby adjusting the amount of glue. The first motor 9 can be a DC brushless motor or an AC variable frequency motor. The first motor 9 is connected to an adjustment device, and the adjustment device is located below the first motor 9. The adjustment device includes a lead screw 5, the lead screw 5 is threadedly connected to a nut seat 10, the nut seat 10 is fixedly connected to the first motor 9, and the nut seat 10 is displaced along the lead screw 5, thereby adjusting the distance between the coating wheel 2 and the cloth surface 1. The adjustment device can adjust the distance between the coating wheel 2 and the glass fiber cloth surface 1. One end of the lead screw 5 is connected to the output end of the servo motor 6, and the other end is rotatably connected to the support seat 11 of the lead screw 5. The servo motor 6 provides power for the rotation of the lead screw 5, and the support seat 11 of the lead screw 5 makes the lead screw 5 stable in the horizontal direction.

[0029] A glue box 4 with an open top is provided at the bottom of the coating wheel 2, and a glue discharge pipe 7 is connected to the side wall of the glue box 4 to facilitate replacement of the glue in the glue box 4. The bottom surface of the coating wheel 2 is immersed in glue, and a glue storage groove 3 is provided on the side wall of the coating wheel 2. The glue storage groove 3 is a smooth arc-shaped groove. The depth of the glue storage groove 3 is less than 2 mm. When the glue storage groove 3 contacts the glue, it will naturally absorb the glue. At the same time, the depth is appropriate. Too deep a depth will result in too little glue remaining therein, making it difficult to contact the cloth surface 1. The coating wheel 2 is immersed in the glue to a depth greater than the depth of the glue storage groove 3, which is less than 5 mm. This can ensure that the glue storage groove 3 is completely immersed in glue, and also avoids immersion too deep so that too much glue adheres to other positions. A liquid level mark is provided in the glue box 4 to prevent the liquid level from being too low and affecting the coating effect.

[0030] The raw materials of glue include PU glue, water and penetrant. The mass ratio of PU glue to water is 3:1, and the amount of penetrant added is 5‰-7‰ of the sum of the mass of PU glue and water. The glue with the above formula can better penetrate into the inside of the fabric 1, enhance the adhesion and sealing of the edge sealing, and there is no need for the coating wheel 2 to cooperate with the backing wheel to squeeze the edge sealing.

[0031] The coating wheel 2 has a diameter of 24-25 cm and a side width of 7-8 cm. The coating wheel 2 of the above size can better perform edge coating and meet the edge width requirements. The coating wheel 2 is made of metal, is not prone to wear, and has a longer service life.

[0032] The upper and lower ends of the glass fiber cloth are tensioned by rollers, and tension sensors are installed on the side frames of the rollers to detect the tension changes of the glass fiber cloth in real time to ensure that the glass fiber cloth is flat and stable during the coating process.

[0033] Working principle:

[0034] The glass fiber cloth to be coated is tensioned by rollers, the prepared glue is poured into the glue box 4, the bottom of the coating wheel 2 is immersed in the glue, the servo motor 6 is turned on, and the distance between the coating wheel 2 and the cloth surface 1 is adjusted by adjusting the position of the motor on the lead screw 5, so that the coating wheel 2 is close to the cloth surface 1;

[0035] The first motor 9 is turned on, and the coating wheel 2 rotates to achieve edge coating of the moving fabric 1.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An electronic grade glass fiber cloth edge sealing coating device, characterized in that: It includes a coating wheel, a glue box with a top opening is provided at the bottom of the coating wheel, the bottom surface of the coating wheel is immersed in glue, a rotating shaft is provided at the center of the coating wheel, one end of the rotating shaft is connected to the output end of the first motor, the first motor is connected to an adjusting device, and the adjusting device can adjust the distance between the coating wheel and the surface of the glass fiber cloth.

2. The electronic grade glass fiber cloth edge sealing coating device according to claim 1, characterized in that: The side wall of the coating wheel is provided with a glue storage groove, and the glue storage groove is a smooth arc-shaped groove.

3. The electronic grade glass fiber cloth edge sealing coating device according to claim 2, characterized in that: The glue storage groove has a depth of less than 2 mm.

4. The electronic grade glass fiber cloth edge sealing coating device according to claim 3, characterized in that: The coating wheel is immersed in the glue to a depth greater than the glue storage tank and less than 5 mm.

5. The electronic grade glass fiber cloth edge sealing coating device according to claim 1, characterized in that: The adjusting device is located below the first motor, and comprises a lead screw, the lead screw is threadedly connected to a nut seat, and the nut seat is fixedly connected to the first motor.

6. The electronic grade glass fiber cloth edge sealing coating device according to claim 5, characterized in that: The axis of the lead screw is perpendicular to the cloth surface.

7. The electronic grade glass fiber cloth edge sealing coating device according to claim 1, characterized in that: The raw materials of the glue include PU glue, water and penetrant.

8. The electronic grade glass fiber cloth edge sealing coating device according to claim 7, characterized in that: The mass ratio of PU glue and water is 3:1, and the amount of penetrant added is 5‰-7‰ of the sum of the mass of PU glue and water.

9. The electronic grade glass fiber cloth edge sealing coating device according to claim 1, characterized in that: The coating wheel has a diameter of 24-25 cm and a side width of 7-8 cm.

10. The electronic grade glass fiber cloth edge sealing coating device according to claim 1, characterized in that: The coating wheel is made of metal.

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