Solvent-free compound machine for plastic bag production

By designing the mounting blocks and contacts in the solvent-free composite machine for flattening films and using hydraulic telescopic rods to enhance flattening force, the problems of incomplete adhesion and poor flattening effect caused by the unflattening of films are solved, and a more efficient plastic bag composite and winding effect is achieved.

CN222905045UActive Publication Date: 2025-05-27QINGDAO XINJUYUAN PACKAGING CO LTD
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Patent Information

Application Number
CN202421893544.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-07
Publication Date
2025-05-27
Estimated Expiration
2034-08-07

AI Technical Summary

Technical Problem

When used in the existing solvent-free composite machines, the film is not flattened, resulting in incomplete adhesion of the glue liquid, and the lack of a flattened structure of the plastic bag, resulting in poor flattening effect and unable to meet the pressure requirements of plastic bags of different thicknesses.

Method used

A solvent-free composite machine including a mounting mechanism, a winding mechanism, a flattening mechanism and a contact mechanism is designed. Through the coordination of the mounting block and the contacts, auxiliary flattening of the film is achieved; the flattening mechanism uses hydraulic telescopic rods and flattening members to drive the flattening members up and down through the hydraulic telescopic rods to increase the pressure on the plastic bags and ensure the composite effect.

Benefits of technology

Effectively prevent the film from wrinkling and ensure uniform adhesion of the glue liquid; by enhancing the flattening force, the winding density and composite effect of the plastic bags are improved, and the plastic bags of different thicknesses are adapted to plastic bags of different thicknesses.

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Abstract

The utility model provides a solvent-free compound machine for producing a plastic bag, relates to the technical field of solvent-free compound machines, and aims to solve the problems that when an existing solvent-free compound machine is used, glue liquid is smeared on a film, if the film is not flattened, the glue liquid adhesion is not comprehensive, the subsequent compounding is influenced, and a plastic bag flattening structure is not arranged. Comprising a mounting mechanism; multiple groups of roll shafts are arranged between the main bodies; the winding mechanism is mounted on the mounting mechanism; the flattening mechanism is mounted on the winding mechanism, and a motor is fixedly mounted on a mounting block; and the contact piece is fixedly mounted on the motor of the mounting block. A motor on the mounting block is externally connected with two forward and reverse rotation relay control motors, forward and reverse rotation of the two motors can be achieved by controlling the two relays at the same time, the two motors drive the contact pieces to rotate in the forward and reverse directions, arc-shaped protrusions on the contact pieces can make contact with a film, and therefore the inner side of the film is pushed to the outer side; and through mutual cooperation of the two groups of contact pieces, the film is flattened in an auxiliary manner, and wrinkles are prevented.
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Description

Technical Field

[0001] The utility model belongs to the technical field of solvent-free compounding machines, and more specifically, particularly relates to a solvent-free compounding machine for producing plastic bags. Background Art

[0002] The solvent-free laminating machine is a method of laminating two or more substrates together using a solvent-free adhesive, also known as reactive lamination. This device is needed in the production of plastic bags.

[0003] Based on the findings in the prior art, when the existing solvent-free laminating machine is in use, glue is applied to the film. If the film is not flattened, the glue will not stick completely, affecting the subsequent lamination. No flattening structure for the plastic bag is provided. When the existing solvent-free laminating machine is in use, the plastic needs to be assisted in flattening when the plastic bag is rolled up. Usually, the pressure is relatively fixed. As the thickness increases, the pressure on the plastic bag cannot be satisfied, and the flattening effect of the plastic bag cannot be improved. Utility Model Content

[0004] In order to solve the above-mentioned technical problems, the utility model provides a solvent-free laminating machine for the production of plastic bags, so as to solve the problem that when the existing solvent-free laminating machine is in use, glue is applied on the film. If the film is not flattened, the glue will not stick completely and affect the subsequent lamination. There is no flattening structure for the plastic bag. When the existing solvent-free laminating machine is in use, the plastic needs to be assisted in flattening when the plastic bag is rolled up. Usually, the pressure is relatively fixed. As the thickness increases, the pressure on the plastic bag cannot be satisfied, and the flattening effect of the plastic bag cannot be improved.

[0005] The utility model is a solvent-free laminating machine for producing plastic bags, which is achieved by the following specific technical means:

[0006] A solvent-free laminating machine for producing plastic bags, comprising an installation mechanism, a winding mechanism, a flattening mechanism and a contact mechanism;

[0007] The mounting mechanism is the body of the solvent-free laminating machine, and the mounting mechanism includes: a main body, on which a motor is fixedly mounted, and between which multiple groups of rollers are arranged; the winding mechanism is mounted on the mounting mechanism; the flattening mechanism is mounted on the winding mechanism, and the flattening mechanism includes: a fixing part, which is a rectangular structure, on which a circular hole is arranged, and which is fixedly mounted between connecting parts on the winding mechanism; the contact mechanism is mounted on the mounting mechanism.

[0008] Furthermore, the installation mechanism also includes:

[0009] The glue coating roller is a cylindrical structure and is rotatably installed between the main bodies; the screw rod is connected to the motor on the main body.

[0010] Furthermore, the installation mechanism also includes:

[0011] The mounting rod is a cylindrical structure and is fixedly installed between the main bodies; the moving part is an L-shaped structure, a nozzle is fixedly installed on the moving part, a threaded hole is provided on the moving part, a round hole is provided on the moving part, and the moving part is installed on the screw rod, and the moving part is slidably installed on the mounting rod.

[0012] Furthermore, the winding mechanism comprises:

[0013] A connecting piece is fixedly installed between the main bodies, and a plurality of rollers are rotatably installed on the connecting piece; and a winding piece is installed between the connecting pieces.

[0014] Furthermore, the flattening mechanism comprises:

[0015] The connecting rod is a cylindrical structure and is slidably installed inside the circular hole on the fixed part; the flattening part is a U-shaped structure, a rotating shaft is rotatably installed at the bottom of the flattening part, and the flattening part is fixedly installed at the bottom of the connecting rod, and the top of the flattening part is connected to the fixed part through a hydraulic telescopic rod.

[0016] Furthermore, the contact mechanism comprises:

[0017] A mounting block, on which a motor is fixedly mounted, and the mounting block is fixedly mounted between the main bodies; a contact piece, which is a cylindrical structure, is provided with an arc-shaped protrusion, and is fixedly connected to the motor on the mounting block.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] 1. In this device, a mounting block and a contact piece are provided. Here, the mounting block is fixedly installed between the main bodies, and the contact piece is fixedly connected to the motor on the mounting block, so that when in use, the motor on the mounting block is externally connected to two forward and reverse relays to control the motor. By controlling the two relays at the same time, the forward and reverse rotation of the two motors can be realized. The two sets of motors drive the contact piece to rotate forward and reversely, so that the arc-shaped protrusion on the contact piece can contact the film, thereby pushing the inner side of the film toward the outside, so that the film is assisted in flattening by the cooperation of the two sets of contact pieces to prevent wrinkles;

[0020] 2. In this device, a fixing part and a flattening part are provided. The fixing part here is fixedly installed on the connecting part, and the flattening part is connected to the fixing part through a hydraulic telescopic rod. Therefore, when in use, the flattening part is driven to move back and forth up and down by the telescopic effect of the hydraulic telescopic rod on the fixing part, and the connecting rod here can play an auxiliary guiding role in the up and down movement of the flattening part. The rotating shaft at the bottom of the flattening part contacts with the rolled plastic belt, and drives the rotating shaft to rotate when the plastic bag is rolled. At the same time, the hydraulic telescopic rod is extended and retracted to increase the pressure of the flattening part on the plastic bag when it is rolled, so that the plastic bag is rolled more tightly and the composite effect between the plastic bags is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a main perspective three-dimensional structural schematic diagram of the utility model.

[0022] Figure 2 It is a rear-view stereoscopic structural schematic diagram of the utility model.

[0023] Figure 3 It is a schematic diagram of a partially exploded three-dimensional structure of the utility model.

[0024] Figure 4 It is a three-dimensional structural schematic diagram of the rotating mechanism of the utility model.

[0025] In the figure, the corresponding relationship between the component names and the figure numbers is as follows:

[0026] 1. Installation mechanism; 101. Main body; 102. Glue coating roller; 103. Screw; 104. Installation rod; 105. Moving part; 2. Winding mechanism; 201. Connecting part; 202. Winding part; 3. Flattening mechanism; 301. Fixing part; 302. Connecting rod; 303. Flattening part; 4. Contact mechanism; 401. Installation block; 402. Contact part. DETAILED DESCRIPTION

[0027] The implementation of the utility model is further described in detail below in conjunction with the drawings and examples.

[0028] Example:

[0029] As attached Figure 1 To Attachment Figure 4 As shown:

[0030] The utility model provides a solvent-free laminating machine for producing plastic bags, comprising a mounting mechanism 1, a winding mechanism 2, a flattening mechanism 3 and a contact mechanism 4; the mounting mechanism 1 is the body of the solvent-free laminating machine, and the mounting mechanism 1 comprises: a main body 101, a motor is fixedly mounted on the main body 101, and a plurality of rollers are arranged between the main bodies 101; the main body 101 here is used to transport and transfer a film through the installed plurality of rollers, which is a mature prior art; the winding mechanism 2 is mounted on the mounting mechanism 1; the flattening mechanism 3 is mounted on the winding mechanism 2, and the flattening mechanism 3 comprises: a fixing member 301, the fixing member 301 is a rectangular structure, a round hole is arranged on the fixing member 301, and the fixing member 301 is fixedly mounted between the connecting members 201 on the winding mechanism 2; the fixing member 301 here is used to install a flattening member 303 through a hydraulic telescopic rod; the contact mechanism 4 is mounted on the mounting mechanism 1.

[0031] Among them, Figure 1 As shown, the mounting mechanism 1 also includes: a glue coating roller 102, which is a cylindrical structure and is rotatably mounted between the main body 101; the glue coating roller 102 here is used to adhere glue to its surface by rotation and adhere the glue to the film; a screw 103, which is connected to the motor on the main body 101; the screw 103 here is used to rotate through the motor on the main body 101, thereby driving the moving member 105 to move on the mounting rod 104; the mounting rod 104, which is a cylindrical structure and is fixed Installed between the main body 101; the mounting rod 104 here is used to assist in guiding the moving path of the moving part 105; the moving part 105, the moving part 105 is an L-shaped structure, a nozzle is fixedly installed on the moving part 105, a threaded hole is provided on the moving part 105, a round hole is provided on the moving part 105, and the moving part 105 is installed on the screw 103, and the moving part 105 is slidably installed on the mounting rod 104; the moving part 105 here is used for an external liquid storage tank, and is driven to move on the mounting rod 104 by the rotation of the screw 103, so that a reciprocating glue spraying operation can be performed.

[0032] Among them, Figure 1 As shown, the winding mechanism 2 includes: a connecting member 201, which is fixedly installed between the main bodies 101, and a plurality of rollers are rotatably installed on the connecting member 201; the connecting member 201 here is used to transfer and compress the plastic bag through the installed plurality of rollers; a winding member 202, which is installed between the connecting members 201; the winding member 202 here is used to roll up the finished plastic belt by rotating.

[0033] Among them, Figure 3As shown, the flattening mechanism 3 includes: a connecting rod 302, which is a cylindrical structure and is slidably installed inside the circular hole on the fixing member 301; the connecting rod 302 here is used to assist in guiding the moving path of the flattening member 303; a flattening member 303, which is a U-shaped structure, a rotating shaft is rotatably installed at the bottom of the flattening member 303, and the flattening member 303 is fixedly installed at the bottom of the connecting rod 302, and the top of the flattening member 303 is connected to the fixing member 301 through a hydraulic telescopic rod; the flattening member 303 here is used to be connected to the fixing member 301 through the hydraulic telescopic rod, and the hydraulic telescopic rod is extended and retracted, so that the flattening member 303 increases the pressure on the rolled plastic bag to ensure the tightness of the adhesion between the plastic bag and the film.

[0034] Among them, Figure 4 As shown, the contact mechanism 4 includes: a mounting block 401, on which a motor is fixedly mounted, and the mounting block 401 is fixedly mounted between the main bodies 101; the mounting block 401 here is used to fix the motor, and the motor is externally connected to two forward and reverse relays to control the motor, and the two motors can be controlled by controlling the two relays at the same time to realize the forward and reverse rotation of the two motors, and the contact pieces 402 are driven to rotate forward and reversely by the two groups of motors; the contact piece 402, the contact piece 402 is a cylindrical structure, an arc-shaped protrusion is provided on the contact piece 402, and the contact piece 402 is fixedly connected to the motor on the main body 101; the contact piece 402 here is used to rotate in opposite directions through two groups, so as to contact the film through the arc-shaped protrusion, thereby pushing the film, thereby assisting in flattening the film, and ensuring that wrinkles are avoided on the surface of the film.

[0035] The specific usage and function of this embodiment are as follows:

[0036] In the utility model, when the device is used, the film is conveyed by multiple groups of rollers on the main body 101, and the motor on the mounting block 401 is externally connected to two forward and reverse relays to control the motor. The forward and reverse rotation of the two motors can be realized by controlling the two relays at the same time. The two groups of motors drive the contact pieces 402 to rotate forward and reversely, so that the arc-shaped protrusions on the contact pieces 402 can contact the film, thereby pushing the inner side of the film toward the outside. The two groups of contact pieces 402 cooperate with each other, so that the film is assisted in flattening to prevent wrinkles. The motor on the main body 101 drives the screw 103 to rotate, thereby driving the moving piece 105 to move back and forth on the mounting rod 104, so that The movable part 105 performs reciprocating glue spraying operation, the glue coating roller 102 performs glue coating operation on the film surface, and the roller on the connecting part 201 drives the plastic bag to be transported, so that the film and the plastic belt are adhered to and pressed together, and finally the finished plastic bag is rolled up by the winding part 202, and the flattening part 303 is driven to move up and down reciprocatingly by the extension and contraction of the hydraulic telescopic rod on the fixed part 301, and the rotating shaft at the bottom of the flattening part 303 contacts with the rolled plastic bag, and drives the rotating shaft to rotate when the plastic bag is rolled up, and at the same time, the hydraulic telescopic rod is extended and contracted to increase the pressure of the flattening part 303 on the plastic bag when rolling, so that the plastic bag is rolled more tightly, thereby improving the composite effect between the plastic bags.

Claims

1. A solvent-free laminating machine for producing plastic bags, characterized in that: It comprises a mounting mechanism (1), a winding mechanism (2), a flattening mechanism (3) and a contact mechanism (4); The mounting mechanism (1) is the main body of the solvent-free laminating machine, and the mounting mechanism (1) comprises: a main body (101), a motor is fixedly mounted on the main body (101), and a plurality of rollers are arranged between the main bodies (101); the winding mechanism (2) is mounted on the mounting mechanism (1); the flattening mechanism (3) is mounted on the winding mechanism (2), and the flattening mechanism (3) comprises: a fixing member (301), the fixing member (301) is a rectangular structure, a circular hole is arranged on the fixing member (301), and the fixing member (301) is fixedly mounted between the connecting members (201) on the winding mechanism (2); the contact mechanism (4) is mounted on the mounting mechanism (1).

2. The solvent-free laminating machine for producing plastic bags according to claim 1, characterized in that: The mounting mechanism (1) further comprises: The glue coating roller (102) is a cylindrical structure and is rotatably mounted between the main body (101); the screw rod (103) is connected to the motor on the main body (101).

3. The solvent-free laminating machine for producing plastic bags according to claim 2, characterized in that: The mounting mechanism (1) further comprises: The mounting rod (104) is a cylindrical structure and is fixedly installed between the main bodies (101); the moving member (105) is an L-shaped structure, a nozzle is fixedly installed on the moving member (105), a threaded hole is provided on the moving member (105), a circular hole is provided on the moving member (105), the moving member (105) is installed on the screw rod (103), and the moving member (105) is slidably installed on the mounting rod (104).

4. The solvent-free laminating machine for producing plastic bags according to claim 1, characterized in that: The winding mechanism (2) comprises: A connecting member (201), the connecting member (201) is fixedly installed between the main bodies (101), and a plurality of rollers are rotatably installed on the connecting member (201); and a winding member (202), the winding member (202) is installed between the connecting members (201).

5. The solvent-free laminating machine for producing plastic bags according to claim 1, characterized in that: The flattening mechanism (3) comprises: A connecting rod (302) is a cylindrical structure, and the connecting rod (302) is slidably installed inside the circular hole on the fixing member (301); a flattening member (303) is a U-shaped structure, a rotating shaft is rotatably installed at the bottom of the flattening member (303), and the flattening member (303) is fixedly installed at the bottom of the connecting rod (302), and the top of the flattening member (303) is connected to the fixing member (301) through a hydraulic telescopic rod.

6. The solvent-free laminating machine for producing plastic bags according to claim 1, characterized in that: The contact mechanism (4) comprises: A mounting block (401), on which a motor is fixedly mounted, and the mounting block (401) is fixedly mounted between the main bodies (101); a contact piece (402), the contact piece (402) is a cylindrical structure, an arc-shaped protrusion is provided on the contact piece (402), and the contact piece (402) is fixedly connected to the motor on the mounting block (401).