Solventless laminator unwinding device

Abstract

The utility model discloses a kind of unwinding device for solventless laminating machine, belong to solventless laminating machine technical field.It solves the problem that the mobile base material unwinding device of solventless laminating machine in prior art is inconvenient to install base material roll.It mainly includes fixed base, moving seat and lifting seat, the moving seat is slidably installed on fixed base, and moving seat is driven to move left and right relative to fixed base by transverse driving structure;The left end of the fixed base and the right end of the moving seat are respectively provided with unwinding frame, the top of both sides of the unwinding frame is respectively rotatably installed with pivot, the inner side of both sides of the pivot is fixedly installed with gas expansion sleeve, and the pivot is installed with baffle ring in the inner side of gas expansion sleeve;The lifting seat can be liftably installed on fixed base, and lifting seat is driven to lift up and down relative to fixed base by jacking structure;The bottom of the fixed base and the bottom of the moving seat are respectively provided with roller.

Description

Technical Field

[0001] This utility model belongs to the technical field of solventless laminating machines, and more specifically, it relates to an unwinding device for a solventless laminating machine. Background Technology

[0002] A solventless laminating machine is a device specifically designed to bond two or more flexible packaging substrates (such as plastic film, metallized film, aluminum foil, paper, etc.) together. A solventless laminating machine includes an unwinding device, which is the starting point of the entire laminating process and plays a fundamental and crucial role. Its function is to release the roll of substrate to be laminated, providing the substrate for subsequent processes such as gluing and lamination.

[0003] Currently, solvent-free laminating machines use both fixed and mobile unwinding devices. Mobile substrate unwinding devices typically include a frame with a substrate roll mounting structure. The fixed substrate roll rotates and is mounted on the frame. However, current mobile substrate unwinding devices suffer from problems such as cumbersome and time-consuming substrate roll installation. During installation, workers need to first pass the air shaft through the substrate roll drum and then lift it into the fixed structure on the frame. The position of the substrate roll also needs to be constantly adjusted during the alignment process. Summary of the Invention

[0004] The purpose of this invention is to provide an unwinding device for a solventless laminating machine, so as to overcome the problem that the existing mobile substrate unwinding device for solventless laminating machines is inconvenient for installing substrate rolls.

[0005] This utility model is achieved using the following technical solution: an unwinding device for a solventless laminating machine, comprising a fixed base, a movable base, and a lifting base. The movable base is slidably mounted on the fixed base and is driven to move left and right relative to the fixed base via a transverse drive structure. Unwinding frames are respectively mounted on the left end of the fixed base and the right end of the movable base. Rotating shafts are rotatably mounted on the top of the unwinding frames on both sides. Air expansion sleeves are fixedly mounted on the inner side of each rotating shaft, and retaining rings are mounted on the inner side of the air expansion sleeves. The lifting base is vertically mounted on the fixed base and is driven to move up and down relative to the fixed base via a lifting structure. Rollers are respectively mounted on the bottom of the fixed base and the bottom of the movable base.

[0006] Furthermore, the fixed base includes front and rear fixed beams, the left ends of the two fixed beams are connected by fixed side beams, and the right ends of the two fixed beams are respectively provided with telescopic holes. The movable base includes two movable beams, the two movable beams are respectively inserted into the telescopic holes of the two fixed beams, and the right ends of the two movable beams are connected by movable side beams.

[0007] Furthermore, rollers are installed on the left end of the bottom surface of the fixed beams on both sides; rollers are installed on the right end of the bottom surface of the movable beams on both sides.

[0008] Furthermore, a support plate is fixedly installed between the two fixed beams, and the lateral drive structure includes a lateral cylinder fixedly installed on the support plate, with the piston rod of the lateral cylinder extending laterally and fixedly connected to the movable side beam.

[0009] Furthermore, the lifting structure includes a lifting cylinder fixedly mounted on a fixed base, the piston of the lifting cylinder extending vertically and fixedly connected to the lifting base, and the lifting structure also includes multiple guide cylinders fixedly mounted on the fixed base, a guide rod slidably mounted inside the guide cylinder, and the top of the guide rod fixedly connected to the lifting base.

[0010] Furthermore, a bearing seat that mates with the rotating shaft is fixedly installed on the top of the unwinding frame.

[0011] Furthermore, the fixing base has at least two positioning holes.

[0012] Furthermore, one of the rotating shafts on both sides is connected to a magnetic powder brake.

[0013] Furthermore, the top surface of the lifting seat is provided with an arc-shaped placement groove.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This utility model, by setting a fixed seat, a movable seat and a lifting seat, can facilitate the installation and feeding of substrate rolls, and effectively reduce the installation time and difficulty of substrate rolls. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 yes Figure 1 A magnified view of section I in the middle.

[0018] In the diagram: 1. Fixed seat; 2. Moving seat; 3. Lifting seat; 4. Unwinding frame; 5. Rotating shaft; 6. Air sleeve; 7. Retaining ring; 8. Roller; 9. Fixed beam; 10. Fixed side beam; 11. Moving beam; 12. Moving side beam; 13. Support plate; 14. Horizontal cylinder; 15. Lifting cylinder; 16. Guide cylinder; 17. Guide rod; 18. Bearing seat; 19. Positioning hole; 20. Magnetic powder brake; 21. Placement slot. Detailed Implementation

[0019] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort should fall within the scope of protection of this utility model.

[0020] A solvent-free laminating machine unwinding device includes a fixed base 1, a movable base 2, and a lifting base 3. This utility model is a movable substrate unwinding device.

[0021] The fixed base 1 includes front and rear fixed beams 9. The left ends of the two fixed beams 9 are connected by fixed side beams 10, and the right ends of the two fixed beams 9 are respectively provided with telescopic holes. The bottom of the fixed base 1 is equipped with rollers 8. Specifically, the rollers 8 on the fixed base 1 are respectively installed on the left end of the bottom surface of the two fixed beams 9.

[0022] The movable seat 2 is slidably mounted on the fixed seat 1. The movable seat 2 includes two movable beams 11 on both sides, which are respectively inserted into the telescopic holes of the two fixed beams 9 on both sides. The right ends of the two movable beams 11 are connected by movable side beams 12. The bottom of the movable seat 2 is equipped with rollers 8. Specifically, the rollers 8 on the movable seat 2 are respectively installed on the right ends of the bottom surfaces of the two movable beams 11.

[0023] In this utility model, the two movable beams 11 are respectively inserted into the telescopic holes of the two fixed beams 9 so as to realize that the movable seat 2 is slidably installed on the fixed seat 1.

[0024] The rollers 8 at the bottom of the fixed beam 9 and the rollers 8 at the bottom of the movable beam 11 described in this utility model are both universal wheels with brakes.

[0025] The lifting seat 3 can be lifted and installed on the fixed seat 1, and the lifting seat 3 is driven to move up and down relative to the fixed seat 1 through the lifting structure. The top surface of the lifting seat 3 is provided with an arc-shaped placement groove 21. When this utility model is applied, the substrate roll is placed in the arc-shaped placement groove 21 of the lifting seat 3.

[0026] The lifting structure includes a lifting cylinder 15 fixedly mounted on a fixed base 1. The piston of the lifting cylinder 15 extends vertically and is fixedly connected to the lifting seat 3. The lifting structure also includes multiple guide cylinders 16 fixedly mounted on the fixed base 1. Guide rods 17 are slidably installed inside the guide cylinders 16, and the tops of the guide rods 17 are fixedly connected to the lifting seat 3. When the lifting seat 3 needs to be raised or lowered, this invention only requires opening the lifting cylinder 15. The piston rod of the lifting cylinder 15 will drive the lifting seat 3 to rise and fall. By setting the guide cylinders 16 and guide rods 17, this invention makes the raising and lowering of the lifting seat 3 more stable. At the same time, the guide cylinders 16 and guide rods 17 also provide support and stability for the lifting seat 3, ensuring that the lifting seat 3 can only rise and fall relative to the fixed base 1.

[0027] The movable seat 2 moves left and right relative to the fixed seat 1 via a lateral drive structure. A support plate 13 is fixedly installed between the two fixed beams 9. The lateral drive structure includes a lateral cylinder 14 fixedly installed on the support plate 13. The piston rod of the lateral cylinder 14 extends laterally and is fixedly connected to the movable side beam 12. When the movable seat 2 needs to move away from or closer to the fixed seat 1, we only need to activate the lateral cylinder 14. The lateral cylinder 14 drives the movable seat 2 to move away from or closer to the fixed seat 1 via its piston rod.

[0028] The left end of the fixed base 1 and the right end of the movable base 2 are respectively equipped with unwinding frames 4. The top of the unwinding frames 4 on both sides are respectively rotatably mounted with rotating shafts 5. The inner side of the rotating shafts 5 on both sides is fixedly mounted with air expansion sleeves 6. The rotating shaft 5 is equipped with retaining rings 7 on the inner side of the air expansion sleeves 6. The top of the unwinding frame 4 is fixedly mounted with bearing seats 18 that cooperate with the rotating shafts 5. One of the rotating shafts 5 on both sides is connected to a magnetic powder brake 20.

[0029] The air expansion sleeve 6 described in this invention is a commonly used clamp in current unwinding devices. The air expansion sleeve 6 can be a key-type air expansion sleeve 6. In this invention, the air expansion sleeves 6 on both sides enable shaftless unwinding, eliminating the need for an air expansion shaft and making the installation of the substrate roll more convenient. When installing the substrate roll, first insert the air expansion sleeves 6 on both sides into the roll drum of the substrate roll. Then, by inflating the air expansion sleeves 6, the keys on the air expansion sleeves 6 extend outwards and clamp the roll drum of the substrate roll. The outer diameter of the retaining ring 7 described in this invention is smaller than the outer diameter of the roll drum at the center of the substrate roll but larger than the inner diameter of the roll drum. When the substrate roll is clamped between the air expansion sleeves 6 on both sides, the retaining rings 7 on both sides can block the roll drum of the substrate roll, thereby limiting the position of the substrate roll.

[0030] The fixed base 1 is provided with at least two positioning holes 19. By providing positioning holes 19 on the fixed base 1, this utility model can position the fixed base 1 in actual application, and then position the air expansion sleeve 6 on the fixed base 1 and the left end of the substrate roll on the air expansion sleeve 6. In application, we can provide insertion holes corresponding to the positioning holes 19 on the fixed base 1 on the workshop floor, and insert positioning pins between the positioning holes 19 and the insertion holes.

[0031] The working process of this utility model is as follows: When it is necessary to install the substrate roll into this utility model, we can first place the substrate roll on the movable seat 2, then open the lifting cylinder 15, the lifting cylinder 15 drives the lifting seat 3 to move upward a certain distance until the center of the substrate roll is aligned with the air expansion sleeve 6 on the upper side of the fixed seat 1, close the lifting cylinder 15, open the transverse cylinder 14, the transverse cylinder 14 drives the movable seat 2 to move towards the fixed seat 1, and while the movable seat 2 is moving, the air expansion sleeve 6 on the unwinding frame 4 on the movable seat 2 will move towards the substrate roll. When the roll approaches and is inserted into the roll, we can first inflate the air sleeve 6 on this side and make the key on the air sleeve 6 on this side extend outward and clamp the roll of the substrate. The air shaft 6 on this side will push the substrate roll towards the fixed seat 1. Then the air sleeve 6 of the unwinding frame 4 on the fixed seat 1 will be inserted into the roll. Then we close the transverse cylinder 14 and finally inflate the air sleeves 6 on both sides to make the key on the air sleeves 6 on both sides extend outward and clamp the roll of the substrate. Finally, the lifting cylinder 15 drives the lifting seat 3 to move down to the initial position.

Claims

1. An unwinding device for a solventless laminating machine, characterized in that, The device includes a fixed seat (1), a movable seat (2), and a lifting seat (3). The movable seat (2) is slidably mounted on the fixed seat (1) and is driven to move left and right relative to the fixed seat (1) by a transverse drive structure. A winding rack (4) is installed on the left end of the fixed seat (1) and the right end of the movable seat (2). A rotating shaft (5) is rotatably mounted on the top of the winding rack (4) on both sides. An air sleeve (6) is fixedly mounted on the inner side of the rotating shaft (5) on both sides. A retaining ring (7) is installed on the inner side of the air sleeve (6) on the rotating shaft (5). The lifting seat (3) can be lifted and lowered on the fixed seat (1), and the lifting seat (3) is driven to move up and down relative to the fixed seat (1) by a lifting structure. Rollers (8) are installed on the bottom of the fixed seat (1) and the bottom of the movable seat (2).

2. The unwinding device for a solventless laminating machine according to claim 1, characterized in that, The fixed seat (1) includes front and rear fixed beams (9), the left ends of the two fixed beams (9) are connected by fixed side beams (10), and the right ends of the two fixed beams (9) are respectively provided with telescopic holes. The movable seat (2) includes two movable beams (11), the two movable beams (11) are respectively inserted into the telescopic holes of the two fixed beams (9), and the right ends of the two movable beams (11) are connected by movable side beams (12).

3. The unwinding device for a solventless laminating machine according to claim 2, characterized in that, Rollers (8) are installed on the left end of the bottom surface of the fixed beams (9) on both sides respectively; rollers (8) are installed on the right end of the bottom surface of the movable beams (11) on both sides respectively.

4. The unwinding device for a solventless laminating machine according to claim 2, characterized in that, A support plate (13) is fixedly installed between the two fixed beams (9). The transverse drive structure includes a transverse cylinder (14) fixedly installed on the support plate (13). The piston rod of the transverse cylinder (14) extends transversely and is fixedly connected to the movable side beam (12).

5. The unwinding device for a solventless laminating machine according to claim 1, characterized in that, The lifting structure includes a lifting cylinder (15) fixedly installed on a fixed seat (1). The piston of the lifting cylinder (15) extends vertically and is fixedly connected to the lifting seat (3). The lifting structure also includes a plurality of guide cylinders (16) fixedly installed on the fixed seat (1). A guide rod (17) is slidably installed inside the guide cylinder (16). The top of the guide rod (17) is fixedly connected to the lifting seat (3).

6. The unwinding device for a solventless laminating machine according to claim 1, characterized in that, The top of the unwinding frame (4) is fixedly installed with a bearing seat (18) that cooperates with the rotating shaft (5).

7. The unwinding device for a solventless laminating machine according to claim 1, characterized in that, The fixed base (1) has at least two positioning holes (19).

8. The unwinding device for a solventless laminating machine according to claim 1, characterized in that, One of the rotating shafts (5) on both sides is connected to a magnetic powder brake (20).

9. The unwinding device for a solventless laminating machine according to any one of claims 1-8, characterized in that, The top surface of the lifting seat (3) is provided with an arc-shaped placement groove (21).

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