Sponge continuous hot melt adhesive compounding equipment

Abstract

The utility model discloses a kind of sponge continuous hot melt adhesive composite equipment, including cabinet, multiple stand columns are installed on cabinet, fixed with top plate on stand column, first hydraulic cylinder is installed on top plate, the telescopic end of first hydraulic cylinder is connected with hot-pressing mechanism, positioning frame is equipped below hot-pressing mechanism on cabinet, the size of positioning frame is greater than the size of hot-pressing mechanism, the extension frame extending outward is connected in the both ends of cabinet, the unwinding mechanism and film pulling mechanism of adhesive film are respectively installed on two extension frames, release adhesive film by unwinding mechanism, adhesive film is pulled to the top of hot-pressing mechanism by film pulling mechanism;The side of hot-pressing mechanism facing unwinding mechanism is also provided with cutting mechanism, for cutting adhesive film, clamping mechanism is also installed between cutting mechanism and unwinding mechanism on cabinet, for fixing adhesive film.In hot-pressing, adhesive film is pressed tightly by clamping mechanism, after cutting adhesive film by cutting mechanism, adhesive film will not rebound, and it is beneficial to film pulling mechanism to pull adhesive film again.

Description

Technical Field

[0001] This utility model relates to the field of sponge production technology, specifically to a continuous hot melt adhesive composite equipment for sponges. Background Technology

[0002] In outdoor jackets, ski suits, and waterproof garments, waterproof and breathable membranes (such as TPU or PTFE membranes) are laminated onto sponge or knitted fabric to create composite fabrics that provide warmth, breathability, windproofness, and waterproofing. The sponge layer (usually an ultra-thin sponge) provides warmth and a soft feel, while the membrane layer provides a waterproof barrier.

[0003] Therefore, special equipment is needed to laminate hot melt adhesive onto the sponge. The current hot melt adhesive laminating equipment has the following main problems: (1) After the adhesive film is hot-pressed onto the sponge and cut, the adhesive film is prone to rebound, making it difficult to pull the adhesive film again. Moreover, the next lamination requires manual pulling of the adhesive film, resulting in low work efficiency; (2) The adhesive film cannot be preheated before lamination, resulting in excessively long formal hot pressing time. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a continuous hot melt adhesive laminating device for sponges, thereby solving the problems mentioned in the background section.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: A continuous hot melt adhesive laminating device for sponges includes a chassis with multiple columns mounted on it. A top plate is fixed to each column, and a first hydraulic cylinder is mounted on the top plate. The telescopic end of the first hydraulic cylinder is connected to a hot pressing mechanism. A positioning frame is located below the hot pressing mechanism on the chassis, and the size of the positioning frame is larger than that of the hot pressing mechanism. Extension frames extending outward are connected to both ends of the chassis. An unwinding mechanism and a film pulling mechanism are respectively mounted on the two extension frames. The film is released by the unwinding mechanism and pulled above the hot pressing mechanism by the film pulling mechanism. A cutting mechanism is also provided on the side of the hot pressing mechanism facing the unwinding mechanism for cutting the film. A clamping mechanism is also installed on the chassis between the cutting mechanism and the unwinding mechanism for fixing the film.

[0006] Preferably, the hot pressing mechanism includes a pressure box, a hot pressing plate, and a first electric heating tube. The pressure box has sliding holes at its four corners and is slidably connected to the column through the sliding holes. The hot pressing plate is made of mold steel and is fixed to the bottom surface of the pressure box. The first electric heating tube is installed inside the pressure box through a terminal block.

[0007] Preferably, the cutting mechanism includes a fixed plate, a second hydraulic cylinder, a lifting frame, a screw drive mechanism, a slide, a cutting motor, and a cutting blade. The fixed plate is connected to one side of the pressure box, the second hydraulic cylinder is mounted on the fixed plate, and the telescopic end of the second hydraulic cylinder is connected to the lifting frame. The screw drive mechanism is mounted at the bottom of the lifting frame, and the slide is driven by the screw drive mechanism. The screw drive mechanism drives the slide to move back and forth. The cutting motor is mounted on the bottom surface of the slide, and the cutting blade is mounted on the motor shaft of the cutting motor. When not cutting, the lowest point of the cutting blade is located above the plane of the hot press plate. When cutting is required, the second hydraulic cylinder is extended to lower the lifting frame, allowing the cutting blade to contact the film. Then, the screw drive mechanism controls the slide to move back and forth, thus cutting the film.

[0008] Preferably, the unwinding mechanism includes a first support, an unwinding motor, a second support, a preheating roller, a conveying roller, and a guide roller. An unwinding shaft is rotatably connected to the first support, and the unwinding motor is mounted on the first support. The motor shaft of the unwinding motor is drively connected to one end of the unwinding shaft. An I-shaped take-up / unwinding roller is fixed on the unwinding shaft, and a film is wound on the take-up / unwinding roller. There are two preheating rollers, arranged one above the other, each with a pre-installed second heating element. The conveying roller is located below the guide roller and the preheating roller. Both the preheating roller and the conveying roller are rotatably connected to the second support. The unwinding motor releases the film, which is conveyed through the two preheating rollers in an S-shaped path, then through the conveying roller and the guide roller to the area below the hot-pressing mechanism, where it covers the sponge.

[0009] Preferably, the film-pulling mechanism includes a scissor-type lifting platform mounted on an extension frame on the side away from the unwinding mechanism. At least two third hydraulic cylinders are mounted on the scissor-type lifting platform. The telescopic ends of the third hydraulic cylinders are connected to a translation plate. Several finger cylinders are mounted on the translation plate on the side facing the unwinding mechanism. The height of the finger cylinders can be adjusted by the scissor-type lifting platform to be the same as the height of the adhesive film. By extending the third hydraulic cylinders, the finger cylinders move towards the adhesive film to clamp it. By controlling the retraction of the third hydraulic cylinders, the adhesive film can be pulled to cover the new sponge.

[0010] Preferably, the clamping mechanism includes a third bracket, a fourth hydraulic cylinder, and clamping plates. The third bracket is mounted on the machine housing, and there are two fourth hydraulic cylinders, one mounted on the top of the third bracket and the other on the machine housing. The two fourth hydraulic cylinders are arranged opposite each other, and the clamping plates are connected to their opposite surfaces. Before cutting, controlling the two fourth hydraulic cylinders to extend simultaneously drives the two clamping plates to move relative to each other, which can clamp the sponge tightly, prevent it from rebounding, and facilitate the film-pulling mechanism to pull a new round of adhesive film.

[0011] Compared with the prior art, the present invention has the following beneficial effects: (1) During hot pressing, the film is pressed tightly by the clamping mechanism. After the hot pressing ends, the film is cut by the cutting mechanism. The film will not spring back and it is easy for the film pulling mechanism to pull the film again.

[0012] (2) Before the hot pressing mechanism, the film is preheated by the preheating roller, which shortens the time of the formal hot pressing and improves efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the present invention; Figure 2 This is a schematic diagram of the hot pressing mechanism, the cutting mechanism, and the clamping mechanism; Figure 3 This is a schematic diagram of the preheating roller; In the diagram: 1-Chassis, 2-Column, 3-First hydraulic cylinder, 4-Hot pressing mechanism, 401-Pressure box, 402-Hot pressing plate, 403-First electric heating tube, 5-Positioning frame, 6-Unwinding mechanism, 601-First support, 602-Second support, 603-Preheating roller, 604-Conveying roller, 605-Guide roller, 606-Take-up and unwinding rollers, 607-Second electric heating tube, 7-Film stretching mechanism, 701-Scissor lifting platform, 702-Third hydraulic cylinder, 703-Finger cylinder, 8-Cutting mechanism, 801-Fixing plate, 802-Second hydraulic cylinder, 803-Lifting frame, 804-Slide seat, 805-Cutting motor, 806-Cutting blade, 9-Clamping mechanism, 901-Third support, 902-Fourth hydraulic cylinder, 903-Clamping plate. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figures 1-3A continuous hot melt adhesive laminating device for sponges includes a casing 1 with four columns 2 mounted on it. A top plate is fixed to each column 2, and a first hydraulic cylinder 3 is mounted on the top plate. The telescopic end of the first hydraulic cylinder 3 is connected to a hot pressing mechanism 4. A positioning frame 5 is located below the hot pressing mechanism on the casing 1. The positioning frame 5 is used to place the sponge, and its size is larger than that of the hot pressing mechanism 4 so that the hot pressing mechanism can enter the positioning frame. Specifically, the hot pressing mechanism 4 includes a pressure box 401, a hot pressing plate 402, and a first electric heating tube 403. The pressure box 401 has sliding holes at its four corners and is slidably connected to the columns 2 through these holes. The hot pressing plate 402 is fixed to the bottom surface of the pressure box 401. The hot pressing plate is made of mold steel, which has extremely high strength and rigidity, as well as good thermal conductivity. The first electric heating tube 403 is installed inside the pressure box 401 through a terminal block. The top of the pressure box 401 has a through hole for wires to pass through, thereby supplying power to the first electric heating tube.

[0016] The hot pressing mechanism 4 is further provided with a cutting mechanism 8 on the side facing the unwinding mechanism 6 for cutting the adhesive film. A clamping mechanism 9 is also installed on the machine housing 1 between the cutting mechanism and the unwinding mechanism for fixing the adhesive film. The cutting mechanism 8 includes a fixed plate 801, a second hydraulic cylinder 802, a lifting frame 803, a screw drive mechanism, a slide 804, a cutting motor 805, and a cutting blade 806. The fixed plate 801 is connected to one side of the pressure box 401. The second hydraulic cylinder 802 is installed on the fixed plate 801, and the telescopic end of the second hydraulic cylinder 802 is connected to the lifting frame 803. The screw drive mechanism is installed at the bottom of the lifting frame 803. The slide 804 is driven by the screw drive mechanism, which drives the slide 804 to move back and forth. The cutting motor 805 is installed on the bottom surface of the slide 804, and the cutting blade 806 is installed on the motor shaft of the cutting motor 805. The lead screw transmission mechanism includes a motor, a lead screw, and a guide rod. The motor is connected to the lead screw, the lead screw is threaded to the slide, and the guide rod is slidably connected to the slide. The motor drives the lead screw to rotate, which in turn drives the slide to move linearly along the guide rod, thereby driving the cutting mechanism to move back and forth.

[0017] When not cutting, the lowest point of the cutting blade is located above the plane of the hot press plate. When cutting is required, the second hydraulic cylinder is extended to drive the lifting frame to descend, so that the cutting blade contacts the film. Then, the slide is moved back and forth through the screw drive mechanism to cut the film.

[0018] The two ends of the chassis 1 are connected to outward extension frames. The two extension frames are respectively equipped with a film unwinding mechanism 6 and a film pulling mechanism 7. The film is released by the unwinding mechanism 6 and pulled to the top of the hot pressing mechanism 4 by the film pulling mechanism 7.

[0019] The unwinding mechanism 6 includes a first support 601, an unwinding motor, a second support 602, a preheating roller 603, a conveying roller 604, and a guide roller 605. An unwinding shaft is rotatably connected to the first support 601, and the unwinding motor is mounted on the first support 601. The motor shaft of the unwinding motor is drively connected to one end of the unwinding shaft. An I-shaped take-up / unwinding roller 606 is fixed on the unwinding shaft, and adhesive film is wound on the take-up / unwinding roller 606. There are two preheating rollers 603, arranged one above the other, and a second heating element 607 is pre-installed inside each preheating roller 603. The conveying roller 604 is located below the guide roller 605 and the preheating roller 603. Both the preheating roller 603 and the conveying roller 604 are rotatably connected to the second support 602. The unwinding motor releases the adhesive film, which is conveyed through the two preheating rollers in an S-shaped path, then through the conveying roller and the guide roller to the area below the hot-pressing mechanism, where it covers the sponge.

[0020] The film-pulling mechanism 7 includes a scissor-type lifting platform 701 mounted on an extension frame away from the unwinding mechanism. At least two third hydraulic cylinders 702 are mounted on the scissor-type lifting platform 701. The telescopic ends of the third hydraulic cylinders 702 are connected to a translation plate. Several finger cylinders 703 are mounted on the translation plate facing the unwinding mechanism. The height of the finger cylinders can be adjusted by the scissor-type lifting platform to match the height of the adhesive film. The extension of the third hydraulic cylinders drives the finger cylinders to move towards the adhesive film to clamp it. Controlling the retraction of the third hydraulic cylinders pulls the adhesive film, allowing it to cover the new sponge.

[0021] The clamping mechanism 9 includes a third bracket 901, a fourth hydraulic cylinder 902, and a clamping plate 903. The third bracket 901 is mounted on the housing 1. There are two fourth hydraulic cylinders 902, one mounted on the top of the third bracket 901 and the other on the housing 1. The two fourth hydraulic cylinders 902 are arranged opposite each other, and the clamping plate 903 is connected to their opposite surfaces. Before cutting, controlling the two fourth hydraulic cylinders to extend simultaneously drives the two clamping plates to move relative to each other, which can clamp the sponge tightly, prevent it from rebounding, and facilitate the film pulling mechanism to pull a new round of adhesive film.

[0022] The machine is equipped with a PLC controller to control the operation of each motor, hydraulic cylinder, and heating element. In addition, it is also equipped with a hydraulic pump to provide power to the hydraulic cylinders.

[0023] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A continuous hot melt adhesive laminating device for sponges, characterized in that: Includes a chassis (1), on which multiple columns (2) are installed, and a top plate is fixed on the columns (2). A first hydraulic cylinder (3) is installed on the top plate. The telescopic end of the first hydraulic cylinder (3) is connected to a hot pressing mechanism (4). A positioning frame (5) is provided on the chassis (1) below the hot pressing mechanism. The size of the positioning frame (5) is larger than the size of the hot pressing mechanism (4). Both ends of the chassis (1) are connected to outwardly extending extension frames. A film unwinding mechanism (6) and a film pulling mechanism (7) are respectively installed on the two extension frames. The film is released by the unwinding mechanism (6) and pulled to the top of the hot pressing mechanism (4) by the film pulling mechanism (7). The hot pressing mechanism (4) is also provided with a cutting mechanism (8) on the side facing the unwinding mechanism (6) for cutting the adhesive film. A clamping mechanism (9) is also installed on the machine housing (1) between the cutting mechanism and the unwinding mechanism for fixing the adhesive film.

2. The continuous hot melt adhesive laminating equipment for sponges according to claim 1, characterized in that: The hot pressing mechanism (4) includes a pressure box (401), a hot pressing plate (402), and a first electric heating tube (403). The pressure box (401) has sliding holes at its four corners and is slidably connected to the column (2) through the sliding holes. The hot pressing plate (402) is fixed to the bottom surface of the pressure box (401), and the first electric heating tube (403) is installed in the pressure box (401) through a terminal block.

3. The continuous hot melt adhesive laminating equipment for sponges according to claim 2, characterized in that: The cutting mechanism (8) includes a fixed plate (801), a second hydraulic cylinder (802), a lifting frame (803), a screw drive mechanism, a slide (804), a cutting motor (805), and a cutting blade (806). The fixed plate (801) is connected to one side of the pressure box (401). The second hydraulic cylinder (802) is installed on the fixed plate (801). The telescopic end of the second hydraulic cylinder (802) is connected to the lifting frame (803). The screw drive mechanism is installed at the bottom of the lifting frame (803). The slide (804) is connected to the screw drive mechanism. The working of the screw drive mechanism drives the slide (804) to move back and forth. The cutting motor (805) is installed on the bottom surface of the slide (804). The cutting blade (806) is installed on the motor shaft of the cutting motor (805).

4. The continuous hot melt adhesive laminating equipment for sponges according to claim 3, characterized in that: The unwinding mechanism (6) includes a first support (601), an unwinding motor, a second support (602), a preheating roller (603), a conveying roller (604), and a guide roller (605). An unwinding shaft is rotatably connected to the first support (601), and an unwinding motor is installed on the first support (601). The motor shaft of the unwinding motor is connected to one end of the unwinding shaft. An I-shaped take-up and unwinding wheel (606) is fixed on the unwinding shaft. A film is wound on the take-up and unwinding wheel (606). There are two preheating rollers (603), which are arranged one above the other. A second electric heating tube (607) is preset inside the preheating roller (603). The conveying roller (604) is located below the guide roller (605) and the preheating roller (603). The preheating roller (603) and the conveying roller (604) are both rotatably connected to the second support (602).

5. The continuous hot melt adhesive laminating equipment for sponges according to claim 4, characterized in that: The film pulling mechanism (7) includes a scissor lift platform (701) installed on an extension frame away from the unwinding mechanism. At least two third hydraulic cylinders (702) are installed on the scissor lift platform (701). The telescopic ends of the third hydraulic cylinders (702) are connected to a translation plate. Several finger cylinders (703) are installed on the side of the translation plate facing the unwinding mechanism.

6. The continuous hot melt adhesive laminating equipment for sponges according to claim 5, characterized in that: The clamping mechanism (9) includes a third bracket (901), a fourth hydraulic cylinder (902) and a clamping plate (903). The third bracket (901) is mounted on the chassis (1). There are two fourth hydraulic cylinders (902), which are respectively mounted on the top of the third bracket (901) and on the chassis (1). The two fourth hydraulic cylinders (902) are arranged opposite to each other, and the opposite surfaces are connected to the clamping plate (903).

Images