Gluing device for composite fabric

Abstract

The utility model discloses a gluing device for composite fabrics, including a scraper table and a scraper mechanism, the scraper mechanism including a bracket, a lifting cylinder capable of vertical extension and retraction is arranged below the bracket, the lower end of the lifting cylinder is driven to connect to a U-shaped frame, a swing frame is hinged below the U-shaped frame, the lower surface of the swing frame is detachably connected to a scraper, a spring is arranged between the scraper and the U-shaped frame, the scraper is kept tilted and arranged above the scraper table, a trigger switch is also arranged on the U-shaped frame, the trigger switch is electrically connected to the lifting cylinder, an amplification needle that rotates with the swing frame is also arranged on the swing frame, and the swing frame drives the amplification needle to press against the trigger switch and stop the action when the swing frame is pressed and flipped. Through the above structure, the scraper plate can be conveniently adjusted to a height suitable for the thickness of the fabric by only lifting and lowering the lifting cylinder, and the pressure of the scraper plate on the fabric surface and the angle between the scraper plate and the fabric surface are also adjusted synchronously, which is convenient and quick.

Description

Technical Field

[0001] The utility model relates to a gluing device, in particular to a gluing device for composite fabrics. Background Art

[0002] Gluing is an important step in the processing of composite fabrics. The main purpose of gluing is to evenly apply glue on the surface of the fabric so as to bond different layers of fabric together to produce composite fabrics with specific functions and appearance.

[0003] During the gluing process, it is necessary to control the amount of glue used to ensure that the glue is evenly distributed to avoid too much or too little glue, so as not to affect the quality of the composite fabric.

[0004] There are two main types of existing gluing devices. One is to apply glue to the surface of the composite fabric through a glue roller, and during the process, the surface of the glue roller is subjected to a gluing treatment through a glue plate. The advantage of this method is that after the glue roller is subjected to the gluing treatment, the glue on its surface is evenly distributed, and the glue can be applied to the surface of the fabric by contacting with the fabric. Another method is to first apply glue to the surface of the fabric, and then abut against the surface of the composite fabric through a scraper to scrape the glue applied on the composite fabric. It should be noted that the second gluing method has a more prominent gluing effect on fabrics with more fluff on the surface, and can better scrape the glue through the fluff to the surface of the fabric. However, the problem with this gluing method is that when the thickness of the fabric changes, the height of the scraper must also be adjusted accordingly, and during the adjustment process, attention must be paid to the pressure of the scraper against the surface of the fabric and the inclination angle between the scraper and the fabric to ensure the scraping effect. Manual adjustment alone is time-consuming and labor-intensive. Utility Model Content

[0005] The utility model aims to provide a composite fabric gluing device, which can automatically adjust the height of the glue scraper, the pressure applied to the fabric surface and the inclination angle with the fabric according to the thickness of the fabric.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A gluing device for composite fabrics comprises a glue scraping table and a glue scraping mechanism, the glue scraping mechanism comprises a bracket, a lifting cylinder capable of vertical extension and retraction is arranged below the bracket, the lower end of the lifting cylinder is driven to connect to a U-shaped frame, a swing frame is hinged below the U-shaped frame, the lower surface of the swing frame is detachably connected to a glue scraper plate, a spring is arranged between the glue scraper plate and the U-shaped frame, the glue scraper plate is kept inclined above the glue scraping table, a trigger switch is also arranged on the U-shaped frame, the trigger switch is electrically connected to the lifting cylinder, and an amplification needle which rotates with the swing frame is also arranged on the swing frame, and when the swing frame is pressed and flipped, the amplification needle is driven to press against the trigger switch and then stop moving.

[0008] Preferably, a telescopic cylinder is also provided on the swing frame, and the telescopic cylinder is electrically connected to the lifting cylinder. The telescopic end of the telescopic cylinder passes through the swing frame and is connected to a friction plate. A friction ring is provided on the U-shaped frame, and the friction plate abuts against the friction ring after the telescopic cylinder is extended.

[0009] Preferably, a rubber strip is also provided on the lower edge of the rubber scraper.

[0010] Preferably, the glue scraping platform is further provided with two glue return grooves, and the glue return grooves are arranged on both sides of the glue scraping mechanism.

[0011] Preferably, a negative pressure glue suction mechanism is further provided below the glue scraping platform, and the negative pressure glue suction mechanism is connected below the glue return groove to absorb the glue liquid in the glue return groove.

[0012] Preferably, the negative pressure glue suction mechanism includes a negative pressure cover arranged at the bottom of the glue return groove, the negative pressure cover is connected to a negative pressure pipe, and also includes a glue barrel, a negative pressure pump is installed on the glue barrel, and the negative pressure pipe is connected to the glue barrel to suck the glue liquid in the glue return groove into the glue barrel.

[0013] Compared with the prior art, the utility model has the following beneficial effects: the scraper board in the utility model can be lifted up and down by the lifting cylinder, and the distance from the scraper board surface can be flexibly adjusted to meet the requirements of glue coating on fabrics of different thicknesses. At the same time, due to the action of the spring, when the scraper board is turned to the best scraping angle during the lifting process, it can press against the fabric surface with a constant scraping pressure, which is convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 It is the front view of the utility model;

[0016] Figure 3 It is a top view of the utility model;

[0017] Figure 4 It is a cross-sectional view of the utility model.

[0018] Figure numerals: 100. Glue scraping platform 101. Glue return groove 200. Negative pressure glue suction mechanism 201. Negative pressure cover 202. Negative pressure pipe 203. Glue barrel 204. Negative pressure pump 300. Glue scraping mechanism 301. Lifting cylinder 302. U-shaped frame 303. Glue scraping plate 304. Amplifier needle 305. Spring 306. Swing frame 307. Trigger switch 308. Telescopic cylinder 309. Rubber strip 310. Friction plate 311. Friction ring 312. Bracket. DETAILED DESCRIPTION

[0019] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] like Figures 1 to 4 The glue-coating device for composite fabrics shown in the figure includes a glue-coating platform 100 for fabrics to pass through and a glue-coating mechanism 300 for evenly coating the fabrics that have been preliminarily coated with glue on the glue-coating platform. It should be noted that this method of flattening and scraping glue requires that the pressure of the glue-coating plate against the surface of the fabric and the angle between the glue-coating plate and the fabric are appropriate, so that the glue-coating can be carried out smoothly and the thickness of the glue on the surface of the fabric is moderate during the glue-coating process. It should be noted that the angle between the glue-coating plate and the fabric is best between 45 and 60 degrees, and the pressure against the fabric is best between 0.05 and 0.1 MPa.

[0023] In order to achieve the above requirements, the scraping mechanism 300 in this scheme includes a bracket 312 suspended above the scraping platform 100, and a lifting cylinder 301 is fixedly installed below the bracket, and the lifting cylinder can be extended vertically. A U-shaped frame 302 is fixedly installed at the lower end of the telescopic rod of the lifting cylinder, and the two arms of the U-shaped frame are extended downward. At the same time, a swing frame 306 is also arranged below the U-shaped frame, and the swing frame and the U-shaped frame are hinged through a pivot so that the swing frame can be turned around the hinge pivot. At the same time, a scraping board 100 is detachably installed on the lower surface of the swing frame through bolts, and two springs 305 are arranged between the scraping board and the U-shaped frame, one end of the spring is connected to the U-shaped frame, and the other end is connected to the scraping board, so that the scraping board can maintain a certain angle with the scraping platform, and the angle is between 70 and 80 degrees. When it is subsequently lowered under the drive of the lifting cylinder, the scraping board can be pressed and turned to 45 to 60 degrees. It should also be noted that, by descending the lifting cylinder, the scraper plate is driven to flip to a suitable angle. Due to the rebound effect of the spring, the scraper plate can also apply a suitable scraping pressure to the fabric passing below. Specifically, it is between 0.05 and 0.1 MPa. In addition, in order to make the scraper plate rotate to a suitable position, the lifting cylinder can stop automatically. A trigger switch 307 is also installed on the U-shaped frame, and the trigger switch and the lifting cylinder are connected by wires to realize electrical signal connection. In addition, an amplifier needle 303 is installed on the swing frame. Specifically, the amplitude needle extends radially along the pivot used to connect the swing frame and the U-shaped frame, and the end points to the side where the trigger switch is located. When the scraper plate rotates to the angle required for the scraper table to the scraper, the end of the amplifier needle presses against the trigger switch. At this time, the trigger switch is triggered and sends a stop and continue action to the lifting cylinder. It should be noted that by extending the amplifier needle, the rotation amplitude of the swing frame can be expanded at the end of the amplifier needle, thereby realizing the improvement of the rotation angle sensitivity and the precision of control.

[0024] It should also be noted that, during the process of scraping glue, even if the scraper plate is pressed against the surface of the fabric by the action of the spring, it is inevitable that it will jump. In order to prevent this situation from occurring, a telescopic cylinder 308 is also installed on the swing frame 306. The telescopic end of the telescopic cylinder passes through the swing frame and is fixedly connected to a friction block 310. At the same time, a friction ring 311 coaxial with the pivot is installed on the side of the U-shaped frame. It should be noted that the telescopic cylinder is electrically connected to the lifting cylinder 301. When the lifting cylinder is in the working state, the telescopic cylinder is in the retracted state, and when the lifting cylinder is in the standby state, the telescopic cylinder is in the extended state to drive the friction block to press against the friction ring.

[0025] In addition, the scraper plate 303 is inevitably worn during the long-term scraping process. The wear varies in different degrees at each part, resulting in concave teeth, which is not conducive to uniform scraping. In order to solve the above problem, in some embodiments, it can be circumvented by adding replaceable consumables. Specifically, a rubber strip 309 can be detachably coated on the lower edge of the scraper plate. When the rubber strip is worn, it can be replaced so that the lower edge of the scraper can continue to remain straight.

[0026] It should also be noted that, during the process of flattening and scraping glue on the fabric, some of the glue scraped off the fabric will inevitably be pushed to the sides by the scraper. For this reason, two glue return grooves 101 are provided on the scraper platform 100. The two glue return grooves are located on both sides of the scraper mechanism 300. When the scraper mechanism pushes part of the glue to the sides, the part of the glue enters the glue return groove to avoid contamination of the surface of the scraper platform.

[0027] In order to prevent the glue in the glue return tank from solidifying due to long-term exposure to air, a plurality of holes are provided at the bottom of the glue return tank. At the same time, a negative pressure glue suction mechanism 200 is provided below the glue scraping platform. The negative pressure generated by the negative pressure glue suction mechanism sucks the glue in the glue return tank back through the holes to facilitate subsequent reuse.

[0028] It should be noted that the negative pressure glue suction mechanism 200 includes a negative pressure cover 201 which is arranged at the bottom of the glue return tank, and a negative pressure pipe 202 is connected to the negative pressure cover. At the same time, a glue barrel 203 is placed below the glue scraping table, and a negative pressure pump 204 is also installed on the glue barrel. The negative pressure pipe is connected to the glue barrel so that the negative pressure generated by the negative pressure pump can be transmitted to the glue return tank through the negative pressure pipe. The glue liquid in the glue return tank can quickly flow back to the glue barrel under the action of negative pressure.

[0029] Working principle: When the fabric is replaced, the scraper needs to be adjusted accordingly. The staff first raises the lifting cylinder, and the telescopic cylinder retracts at this time, so that the scraper returns to its initial position under the action of the spring. Then the fabric is laid on the scraper table and passed under the scraper mechanism. When the above steps are completed, the staff drives the telescopic cylinder again, and the telescopic cylinder descends so that the scraper presses against the fabric. It should be noted that when the lower edge of the scraper presses against the surface of the fabric, the scraper flips around the pivot connecting the U-shaped frame and the swing frame, and the spring is compressed during this period, so that the scraper applies pressure to the fabric. When the scraper rotates to the angle required for scraping, the reaction force generated by the compression of the spring is the force of the scraper pressing against the surface of the fabric. It should be noted that when the scraper rotates to the required angle, the end of the amplifier needle presses against the trigger switch to stop the lifting cylinder. At the same time, when the lifting cylinder stops moving and enters the standby state, the telescopic cylinder extends so that the friction block abuts against the friction ring to prevent the scraper plate from jumping during the scraping process.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A gluing device for composite fabrics, characterized in that: The invention comprises a scraper platform (100) and a scraper mechanism (300), wherein the scraper mechanism (300) comprises a bracket (312), a lifting cylinder (301) capable of vertical extension and contraction is arranged below the bracket (312), the lower end of the lifting cylinder (301) is driven to connect to a U-shaped frame (302), a swing frame (306) is hinged below the U-shaped frame (302), the lower surface of the swing frame (306) is detachably connected to a scraper plate (303), and a rubber scraper plate (303) is arranged between the scraper plate (303) and the U-shaped frame (302). A spring (305) is arranged, the scraper plate (303) is kept tilted and arranged above the scraper platform (100), a trigger switch (307) is also arranged on the U-shaped frame (302), and the trigger switch (307) is electrically connected to the lifting cylinder (301), and an amplifier needle (304) is also arranged on the swing frame (306) to rotate with the swing frame (306), and when the swing frame (306) is pressed and turned over, the amplifier needle (304) is driven to press against the trigger switch (307) and then stop moving.

2. A composite fabric gluing device as claimed in claim 1, characterized in that: The swing frame (306) is also provided with a telescopic cylinder (308), the telescopic cylinder (308) is electrically connected to the lifting cylinder (301), the telescopic end of the telescopic cylinder (308) passes through the swing frame (306) and is connected to the friction plate (310), a friction ring (311) is provided on the U-shaped frame (302), and the friction plate (310) abuts against the friction ring (311) after the telescopic cylinder (308) is extended.

3. The gluing device for composite fabrics according to claim 1, characterized in that: The lower edge of the rubber scraper (303) is also provided with a rubber strip (309).

4. The gluing device for composite fabrics according to claim 1, characterized in that: The glue scraping platform (100) is also provided with two glue return grooves (101), and the glue return grooves (101) are arranged on both sides of the glue scraping mechanism (300).

5. A composite fabric gluing device as claimed in claim 4, characterized in that: A negative pressure glue suction mechanism (200) is also provided below the glue scraping platform (100), and the negative pressure glue suction mechanism (200) is connected below the glue return groove (101) to absorb the glue liquid in the glue return groove (101).

6. A composite fabric gluing device as claimed in claim 5, characterized in that: The negative pressure glue suction mechanism (200) comprises a negative pressure cover (201) which is arranged at the bottom of the glue return groove (101), the negative pressure cover (201) is connected to a negative pressure pipe (202), and also comprises a glue barrel (203), a negative pressure pump (204) is installed on the glue barrel (203), and the negative pressure pipe (202) is connected to the glue barrel (203) so as to suck the glue liquid in the glue return groove (101) into the glue barrel (203).

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