Novel laminating processing device for PET (polyethylene terephthalate) coiled material

Abstract

The utility model discloses a novel PET (Polyethylene Terephthalate) coiled material laminating processing device which comprises a U-shaped frame, an upper feeding thick roller, an upper feeding thin roller and a pneumatic lever swinging and pressing mechanism, the upper feeding thick roller and the upper feeding thin roller are rotationally arranged at the upper position in the U-shaped frame, the pneumatic lever swinging and pressing mechanism is arranged in the U-shaped frame below the upper feeding thin roller, and a step part extending upwards is integrally formed at the bottom of the U-shaped frame. One end of the step part penetrates out of the U-shaped frame, and a glue spraying pipe group is mounted in the U-shaped frame at the other end of the step part. According to the utility model, the two surface layers are synchronously compressed, and can be immediately and tightly attached after glue spraying, so that the drying or curing of the glue layer caused by time delay is avoided, and the defects of air inclusion, bubbling, poor adhesion and the like are reduced.

Description

Technical Field

[0001] This utility model relates to the field of PET roll processing technology, specifically a novel PET roll lamination processing device. Background Technology

[0002] PET roll coating and laminating equipment is used to uniformly coat the surface of the roll with adhesive to ensure the smooth progress of subsequent lamination and bonding processes. The structure of this type of equipment typically consists of a feeding mechanism, a pretreatment section, an adhesive coating system, a curing or drying zone, and a winding mechanism. The feeding mechanism ensures stable tension of the roll during the adhesive coating process, while the pretreatment section cleans and treats the roll surface to enhance adhesive adhesion. The adhesive coating system is the core of the equipment, including adhesive storage and conveying equipment, spraying or roller coating devices, and a precise metering and control system that enables uniform adhesive coating. After the adhesive is applied, the roll material undergoes a curing or drying process to ensure that the adhesive layer reaches the required bonding strength. Finally, the rewinding mechanism rolls up the coated roll material for subsequent processing and packaging. The entire adhesive application process includes several steps: pretreatment, feeding, adhesive application, curing or drying, and rewinding. At present, adhesive application and bonding equipment focuses on controlling the uniformity of adhesive application and the quality of the adhesive layer during the adhesive application process. That is, adhesive is applied first, and then the bonding is performed by a special pressing device. This separate process results in a lack of immediate continuity between the two steps, making it impossible to achieve rapid bonding of the layers after adhesive application, and easily leading to insufficient adhesion of the adhesive layer. Utility Model Content

[0003] The purpose of this invention is to provide a novel PET roll lamination processing device. The upper film layer is led to a pneumatic lever-operated pressure mechanism and connected to a winding device via an upper feeding coarse roller and an upper feeding fine roller. The lower PET layer is led from below the glue spraying tube assembly to the pneumatic lever-operated pressure mechanism and connected to the winding device. When the winding device simultaneously winds up the upper film layer and the lower PET layer, the glue spraying tube assembly sprays glue onto the bonding surface of the upper film layer and the lower PET layer. Immediately after the glue is sprayed, the pneumatic lever-operated pressure mechanism presses the glue to complete the lamination, thereby solving the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a novel PET roll lamination processing device, comprising a U-shaped frame, an upper feeding coarse roller and an upper feeding fine roller rotatably mounted at the upper position inside the U-shaped frame, and a pneumatic lever swing mechanism installed inside the U-shaped frame below the upper feeding fine roller. The bottom of the U-shaped frame is integrally formed with an upwardly extending step, one end of which extends through to the outside of the U-shaped frame. A glue spraying tube assembly is installed inside the U-shaped frame at the other end of the step. A roller feeding mechanism is installed inside the U-shaped frame on the side of the pneumatic lever swing mechanism away from the step. A control panel electrically connected to the input ends of the pneumatic lever swing mechanism and the roller feeding mechanism is installed on one outer wall of the U-shaped frame.

[0005] Preferably, the glue spray tube assembly includes a square-mouthed straight tube installed inside one side of the U-shaped frame and a plurality of glue spray nozzles installed on the outer wall of one side of the square-mouthed straight tube.

[0006] Preferably, the pneumatic lever swing mechanism includes a T-shaped seat fixed on one inner wall of the U-shaped frame, a first cylinder hinged to one end of the T-shaped seat, and a rotating shaft rotatably mounted on the front and rear inner walls of the U-shaped frame. One end of the rotating shaft is fixed with a bent arm, and a steel roller is rotatably mounted between the lower ends of the two bent arms. The top end of one of the bent arms is hinged to the top end of the piston rod of the first cylinder. The steel roller is located on the right side of the square-mouthed straight tube, and the input end of the first cylinder is electrically connected to the output end of the control panel.

[0007] Preferably, a gap is provided between the steel roller and the stepped portion, and the bending arm is made of stainless steel.

[0008] Preferably, the roller conveying mechanism includes a second cylinder mounted on the inner wall of one side of the U-shaped frame, a roller frame fixed to the top of the piston rod of the second cylinder, and a rubber roller rotatably mounted inside the roller frame. The input end of the second cylinder is electrically connected to the output end of the control panel.

[0009] Preferably, a stepper motor for driving the rubber roller to rotate is installed on one outer wall of the roller frame, and the input end of the stepper motor is electrically connected to the output end of the control panel.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: This novel PET roll laminating device is equipped with a structure that coordinates an upper feeding coarse roller, an upper feeding fine roller, a pneumatic lever swing mechanism, a glue spraying tube assembly, a roller conveying mechanism, and a control panel. The upper film layer is led to the pneumatic lever swing mechanism via the upper feeding coarse roller and the upper feeding fine roller and connected to the winding equipment. The lower PET layer is led from below the glue spraying tube assembly to the pneumatic lever swing mechanism and connected to the winding equipment. When the winding equipment simultaneously winds up the upper film layer and the lower PET layer, the glue spraying tube assembly sprays glue onto the bonding surface of the upper film layer and the lower PET layer. Immediately after the glue is sprayed, the pneumatic lever swing mechanism presses and completes the lamination, achieving synchronous pressing of the two layers and ensuring that they are properly bonded after glue spraying. It enables immediate and tight bonding, avoiding the drying or curing of the adhesive layer due to time delays, reducing defects such as air inclusions, bubbling, and poor adhesion. The advantage of synchronous pressing is that it can maintain the uniformity and continuity of the adhesive layer to the greatest extent, making the contact between the two materials on the bonding surface tighter, improving the overall bonding strength and mechanical properties of the product. Secondly, the pneumatic lever-operated pressing mechanism can quickly adjust the pressure and pressing time according to the different properties and thicknesses of the materials, thereby achieving more precise bonding control and ensuring that ideal bonding results can be obtained under various process conditions. Furthermore, pressing is performed immediately after spraying the adhesive, avoiding premature drying or curing of the adhesive layer, ensuring that the adhesive layer is pressed in the best condition, thereby maximizing the adhesive performance of the adhesive. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0012] Figure 2 This is a side sectional view of the present invention.

[0013] Figure 3 This is a three-dimensional cross-sectional structural diagram of the present invention;

[0014] Figure 4 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;

[0015] Figure 5 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 .

[0016] In the diagram: 1. U-shaped frame; 2. Upper feeding coarse roller; 3. Upper feeding fine roller; 4. Stepped section; 5. Glue spraying hose assembly; 501. Square straight pipe; 502. Glue spraying nozzle; 6. Pneumatic lever swing mechanism; 601. T-shaped seat; 602. First cylinder; 603. Rotating shaft; 604. Bending arm; 605. Steel roller; 7. Second cylinder; 8. Roller conveying mechanism; 801. Roller frame; 802. Rubber roller; 803. Stepper motor; 9. Control panel. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0018] Please see Figure 1-5 This utility model provides an embodiment of a novel PET roll lamination processing device, comprising a U-shaped frame 1, an upper feeding coarse roller 2 and an upper feeding fine roller 3 rotatably mounted at the upper position inside the U-shaped frame 1, and a pneumatic lever swing mechanism 6 installed inside the U-shaped frame 1 below the upper feeding fine roller 3. The bottom of the U-shaped frame 1 is integrally formed with an upwardly extending step 4, one end of which extends through to the outside of the U-shaped frame 1. A glue spray tube assembly 5 is installed inside the U-shaped frame 1 at the other end of the step 4. A roller feeding mechanism 8 is installed inside the U-shaped frame 1 on the side of the pneumatic lever swing mechanism 6 away from the step 4. A control panel 9 is installed on one outer wall of the U-shaped frame 1 and electrically connected to the input end of the pneumatic lever swing mechanism 6 and the roller feeding mechanism 8.

[0019] The glue spray tube assembly 5 includes a square straight tube 501 installed inside one side of the U-shaped frame 1 and several glue spray nozzles 502 installed on the outer wall of one side of the square straight tube 501. The glue inlet of the square straight tube 501 is connected to an external glue delivery pump through a hose, so that the glue enters the square straight tube 501 and is sprayed through the glue spray nozzles 502 onto the bonding surface of the upper film layer and the lower PET layer, thereby forming a uniform and continuous glue layer on the bonding surface of the materials to ensure the strong adhesion.

[0020] The pneumatic lever-operated swing mechanism 6 includes a T-shaped seat 601 fixed to one side of the inner wall of the U-shaped frame 1, a first cylinder 602 hinged to one end of the T-shaped seat 601, and a rotating shaft 603 rotatably mounted on the front and rear inner walls of the U-shaped frame 1. A bent arm 604 is fixed to one end of the rotating shaft 603. A steel roller 605 is rotatably mounted between the lower ends of the two bent arms 604. The top end of one of the bent arms 604 is hinged to the top end of the piston rod of the first cylinder 602. The steel roller 605 is located on the right side of the square-mouthed straight tube 501. The input end of the first cylinder 602 is electrically connected to the output end of the control panel 9. A gap is provided between the steel roller 605 and the stepped portion 4. Made of stainless steel components, the upper film layer and the lower PET surface layer are located below the steel roller 605. The operator controls the piston rod of the first cylinder 602 through the control panel 9 to pull the upper end of the bending arm 604, so that the bending arm 604 drives the rotating shaft 603 to rotate clockwise. Then, the steel roller 605 at the lower end of the bending arm 604 will approach the step part 4, and the steel roller 605 will press the upper film layer and the lower PET surface layer onto the step part 4, ensuring that the upper film layer and the lower PET surface layer obtain sufficient pressure, thereby ensuring that the pressing is performed immediately after the glue is sprayed, reducing the drying or curing time of the glue layer, thus ensuring the tight adhesion of the materials and avoiding defects such as bubbles and wrinkles.

[0021] The roller conveying mechanism 8 includes a second cylinder 7 installed on the inner wall of one side of the U-shaped frame 1, a roller frame 801 fixed at the top of the piston rod of the second cylinder 7, and a rubber roller 802 rotatably installed inside the roller frame 801. The input end of the second cylinder 7 is electrically connected to the output end of the control panel 9. A stepper motor 803 for driving the rubber roller 802 to rotate is installed on the outer wall of one side of the roller frame 801. The input end of the stepper motor 803 is electrically connected to the output end of the control panel 9.

[0022] After the upper film layer and lower PET layer are coated and bonded, they are conveyed out by the roller conveyor mechanism 8. At this time, the second cylinder 7 drives the roller frame 801 and the rubber roller 802 to approach the step part 4 until there is sufficient friction between the rubber roller 802 and the bonded upper film layer and lower PET layer. The stepper motor 803 drives the rubber roller 802 to rotate, and the roller frame 801 conveys the upper film layer and lower PET layer out of the U-shaped frame 1 and then the winding equipment winds them up to achieve stable material conveying.

[0023] In this embodiment, the upper film layer is first gradually introduced below the pneumatic lever-operated swing mechanism 6 via the upper feeding coarse roller 2 and upper feeding fine roller 3, and finally wound onto the external winding equipment. The main function of the upper feeding coarse roller 2 is to ensure that the surface layer is flat and without obvious wrinkles or deviations, while the upper feeding fine roller 3 guides the upper film layer to stably enter the pneumatic lever-operated swing mechanism 6, ensuring the accuracy of the material's position in subsequent processes. At the same time, the lower PET surface layer is introduced from below the glue spray tube assembly 5 into the space between the pneumatic lever-operated swing mechanism 6 and the step portion 4, and finally wound onto the external winding equipment. At this time, the lower PET surface layer is located below the upper film layer. When the external winding equipment starts... When winding the lower PET surface layer and the upper film surface layer, the adhesive spraying tube assembly 5 evenly sprays adhesive along the bonding surface of the lower PET surface layer and the upper film surface layer to form a continuous and uniform adhesive film. After the adhesive spraying is completed, the next step, namely pressing, is immediately started. The pneumatic lever swing pressing mechanism 6 adjusts the pressure through the control panel 9 to ensure that the upper film surface layer and the lower PET surface layer are pressed together immediately before the adhesive layer has cured or dried, thereby avoiding problems such as poor drying or poor adhesion of the adhesive layer due to time delay. After pressing is completed, the roller conveying mechanism 8 pushes the bonded material into the winding equipment. The control panel 9 ensures the smooth conveying and positioning of the material in continuous production to avoid deviation or wrinkles.

Claims

1. A novel PET web lamination processing device, characterized by: The device includes a U-shaped frame (1), an upper feeding coarse roller (2) and an upper feeding fine roller (3) rotatably mounted inside the upper part of the U-shaped frame (1), and a pneumatic lever swing mechanism (6) installed inside the U-shaped frame (1) below the upper feeding fine roller (3). The bottom of the U-shaped frame (1) is integrally formed with an upwardly extending step (4). One end of the step (4) extends through to the outside of the U-shaped frame (1). A glue spray tube assembly (5) is installed inside the U-shaped frame (1) at the other end of the step (4). A roller conveying mechanism (8) is installed inside the U-shaped frame (1) on the side away from the step (4). A control panel (9) is installed on one outer wall of the U-shaped frame (1) and electrically connected to the input end of the pneumatic lever swing mechanism (6) and the roller conveying mechanism (8).

2. The novel PET roll lamination processing device according to claim 1, characterized in that: The glue spray tube assembly (5) includes a square-mouth straight tube (501) installed inside one side of the U-shaped frame (1) and several glue spray nozzles (502) installed on the outer wall of one side of the square-mouth straight tube (501).

3. The novel PET roll lamination processing device according to claim 2, characterized in that: The pneumatic lever swing mechanism (6) includes a T-shaped seat (601) fixed on the inner wall of one side of the U-shaped frame (1), a first cylinder (602) hinged to one end of the T-shaped seat (601), and a rotating shaft (603) rotatably mounted on the inner walls of the front and rear of the U-shaped frame (1). One end of the surface of the rotating shaft (603) is fixed with a bent arm (604). A steel roller (605) is rotatably mounted between the lower ends of the two bent arms (604). The top end of one of the bent arms (604) is hinged to the top end of the piston rod of the first cylinder (602). The steel roller (605) is located on the right side of the square straight tube (501). The input end of the first cylinder (602) is electrically connected to the output end of the control panel (9).

4. The novel PET roll lamination processing device according to claim 3, characterized in that: A gap is provided between the steel roller (605) and the step portion (4), and the bending arm (604) is made of stainless steel.

5. The novel PET roll lamination processing device according to claim 1, characterized in that: The roller conveying mechanism (8) includes a second cylinder (7) installed on the inner wall of one side of the U-shaped frame (1), a roller frame (801) fixed at the top of the piston rod of the second cylinder (7), and a rubber roller (802) rotatably installed inside the roller frame (801). The input end of the second cylinder (7) is electrically connected to the output end of the control panel (9).

6. The novel PET roll lamination processing device according to claim 5, characterized in that: A stepper motor (803) for driving the rubber roller (802) to rotate is installed on one side of the outer wall of the roller frame (801). The input end of the stepper motor (803) is electrically connected to the output end of the control panel (9).

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