Automatic tension adjusting mechanism for transfer laser paper production

Abstract

The utility model provides a kind of automatic tension adjusting mechanism for transfer laser paper production, it is related to transfer laser paper production technical field, and it includes: upper tensioning roller and lower tensioning roller, main pinch roll and vice pinch roll are set between the upper tensioning roller and lower tensioning roller interval, the inside of main pinch roll and vice pinch roll is connected with transmission shaft, the rear end of transmission shaft is connected with limit slide plate by link column installation, the left end of limit slide plate is connected with electric push rod, the column surface of link column is equipped with gear set, the rear end shaft of link column is connected with motor three, the inside transmission shaft surface of main pinch roll is embedded and installed with tension sensor.The utility model solves the problem that two groups of tensioning roller are easily caused transfer laser paper tension shock when moving up and down adjustment changes greatly in prior art.

Description

Technical Field

[0001] This utility model relates to the field of transfer laser paper production technology, specifically to an automatic tension adjustment mechanism for transfer laser paper production. Background Technology

[0002] Laser transfer paper, also known as laser transfer paper, is a commonly used packaging material, mainly used for packaging products such as tobacco, alcohol, and cosmetics. Laser transfer paper is made by transferring an aluminum-plated coating with a laser effect onto a paper base, thus forming a metallic-luster aluminum-plated paper. A search revealed an existing technology (publication number: CN202323360780.4) for an automatic tension adjustment mechanism in the production of laser transfer paper. The document states that "this automatic tension adjustment mechanism in the production of laser transfer paper uses a drive motor to rotate a bidirectional lead screw, causing relative movement between the first and second tension rollers, thereby automatically adjusting the distance between them. This ensures stable tension adjustment and eliminates manual operation. Furthermore, since both the first and second tension rollers can move, the range of tension adjustment is increased." However, in this existing technology, large changes in the vertical movement of the two sets of tension rollers can easily cause tension vibrations in the laser transfer paper. Utility Model Content

[0003] To overcome the shortcomings of existing technologies, an automatic tension adjustment mechanism for the production of transfer laser paper is provided to solve the problem that the force vibration of the transfer laser paper is easily caused when the two sets of tension rollers move up and down and the adjustment changes are large.

[0004] To achieve the above objectives, an automatic tension adjustment mechanism for the production of transfer laser paper is provided, comprising: an upper tension roller and a lower tension roller, wherein a front adjustment frame and a rear adjustment frame are provided on the front and rear sides of the upper tension roller and the lower tension roller.

[0005] A main pinch roller and an auxiliary pinch roller are provided between the upper tension roller and the lower tension roller. A drive shaft is connected to the inner side of both the main pinch roller and the auxiliary pinch roller. A limit slide is installed at the rear end of the drive shaft through a connecting column. An electric push rod is connected to the left end of the limit slide. A gear set is installed on the cylindrical surface of the connecting column. A motor is connected to the rear end of the connecting column. A tension sensor is embedded in the surface of the drive shaft inside the main pinch roller.

[0006] Furthermore, a first adjusting screw and a second adjusting screw are respectively installed in the front adjusting frame groove, and the rod surface of the first adjusting screw is connected to the front end of the upper tensioning roller through a nut block.

[0007] Furthermore, the second adjusting screw is connected to the front end face of the lower tension roller via a nut block, and a motor is connected to the upper end of the second adjusting screw.

[0008] Furthermore, a motor is connected to the upper end of the first adjusting screw, and the rear ends of the upper tension roller and the lower tension roller are connected to a guide shaft via a linear bearing.

[0009] Furthermore, two sets of guide shafts are installed on the inner side wall of the rear adjustment frame, and a feed guide roller is installed on the upper left end of the upper tension roller.

[0010] Furthermore, a limiting slide plate is slidably connected to the middle of the rear adjustment frame, and an electric push rod is fixed to the left end face of the rear adjustment frame.

[0011] Furthermore, a motor is fixed to the rear surface of the limiting slide plate, and the connecting column and gear set are both installed in the inner groove of the limiting slide plate.

[0012] Furthermore, both the main pinch roller and the auxiliary pinch roller have rubber sleeves fitted onto their outer roller surfaces; and the auxiliary pinch roller is symmetrically located at the left end of the main pinch roller.

[0013] The beneficial effects of this utility model are as follows: The automatic tension adjustment mechanism for the production of transfer laser paper utilizes the main and auxiliary clamping rollers between the upper and lower tensioning rollers. Based on the tension feedback from the tension sensor at the main clamping rollers and tensioning rollers, the upper or lower tensioning roller is automatically adjusted up and down by a motor screw drive. At the same time, the electric push rod is controlled to pull the main and auxiliary clamping rollers to move horizontally, thereby realizing the horizontal and vertical adjustment of the force on the transfer laser paper. This further reduces the variation of the adjustment distance in a single direction, enhances the stability of the transfer laser paper production and conveying, reduces the tension oscillation of the transfer laser paper, and improves the quality of transfer laser paper production and conveying. Attached Figure Description

[0014] Figure 1 This is a front view schematic diagram of the automatic tension adjustment mechanism for producing transfer laser paper according to an embodiment of the present invention.

[0015] Figure 2 This is a front view cross-sectional structural diagram of the automatic tension adjustment mechanism for producing transfer laser paper according to an embodiment of this utility model.

[0016] Figure 3 This is a partial side cross-sectional view of the pinch roller assembly according to an embodiment of the present invention.

[0017] Figure 4 This is a front view cross-sectional structural diagram of the pinch roller assembly according to an embodiment of the present invention.

[0018] In the diagram: 1. Front adjusting frame; 11. Rear adjusting frame; 12. Feed guide roller; 13. Guide shaft; 2. Upper tension roller; 21. Motor 1; 22. First adjusting screw; 3. Lower tension roller; 31. Second adjusting screw; 32. Motor 2; 4. Main pinch roller; 41. Auxiliary pinch roller; 42. Limiting slide plate; 43. Electric push rod; 44. Drive shaft; 45. Motor 3; 46. Gear set; 47. Tension sensor; 48. Connecting column; 49. Rubber roller sleeve. Detailed Implementation

[0019] Reference Figures 1 to 4 As shown, this utility model provides an automatic tension adjustment mechanism for the production of transfer laser paper, including: an upper tension roller 2 and a lower tension roller 3, with a front adjustment frame 1 and a rear adjustment frame 11 arranged on the front and rear sides of the upper tension roller 2 and the lower tension roller 3.

[0020] A main pinch roller 4 and an auxiliary pinch roller 41 are provided between the upper tension roller 2 and the lower tension roller 3. Both the main pinch roller 4 and the auxiliary pinch roller 41 are connected to a drive shaft 44. The rear end of the drive shaft 44 is connected to a limit slide plate 42 via a connecting column 48. An electric push rod 43 is connected to the left end of the limit slide plate 42. A gear set 46 is installed on the cylindrical surface of the connecting column 48. A motor 45 is connected to the rear end of the connecting column 48. A tension sensor 47 is embedded in the surface of the drive shaft 44 inside the main pinch roller 4.

[0021] First, the transfer laser paper is fed from the upper roller surface of the feed guide roller 12 to the right roller surface of the upper tension roller 2. Then, it passes between the gear-driven rotating pinch roller 4 and the auxiliary pinch roller 41, and moves down to the lower right roller of the lower tension roller 3. Finally, it exits from the lower end of the lower tension roller 3 and is conveyed to the traction or winding equipment. When it passes between the tension rollers, the tension control zone 47 at the shaft end of the tension roller and the pinch roller 4 senses the tension change. The PLC controller (located at the side end of the frame) automatically starts the motor screw connected to the tension roller to rotate, driving the upper tension roller 2 or the lower tension roller 3 to move up and down to adjust the longitudinal force of the transfer laser paper. At the same time, the electric push rod 43 pulls the limit slide plate 42 to move horizontally left and right, so that the pinch roller 4 and the auxiliary pinch roller 41 move left and right to adjust the tension of the transfer laser paper laterally. This helps to reduce the change in the adjustment distance in one direction, speeds up the response speed of the transfer laser paper force adjustment mechanism, and enhances the stability of the transfer laser paper production and conveying.

[0022] In this embodiment, a first adjusting screw 22 and a second adjusting screw 31 are respectively installed in the groove of the front adjusting frame 1. The rod surface of the first adjusting screw 22 is connected to the front end of the upper tension roller 2 through a nut block. The rod surface of the second adjusting screw 31 is connected to the front end of the lower tension roller 3 through a nut block. A second motor 32 is shaft-connected to the upper end of the second adjusting screw 31. A first motor 21 is shaft-connected to the upper end of the first adjusting screw 22. The rear ends of the upper tension roller 2 and the lower tension roller 3 are connected to a guide shaft 13 through a linear bearing. Two sets of guide shafts 13 are installed on the inner side wall of the groove of the rear adjusting frame 11, and a feed guide roller 12 is installed on the upper left end of the upper tension roller 2.

[0023] In a preferred embodiment, the first adjusting screw 22 and the second adjusting screw 31 are driven to rotate by motor 21 and motor 32, respectively. The nut block on the screw converts the rotational motion into linear motion, driving the upper tension roller 2 and the lower tension roller 3 to move up and down respectively, thereby adjusting the force transferred to the paper as it passes over the roller surface. The guide shaft 13 and the linear bearing can slide up and down to follow the movement of the upper tension roller 2 and the lower tension roller 3. A through-shaft tension sensor is embedded in the side shaft surface of both the upper tension roller 2 and the lower tension roller 3 to facilitate monitoring of tension changes at the roller surface.

[0024] In this embodiment, a limiting slide plate 42 is slidably connected to the middle of the rear adjustment frame 11, and an electric push rod 43 is fixed to the left end face of the rear adjustment frame 11. A motor 45 is fixed to the rear plate surface of the limiting slide plate 42, and the connecting column 48 and the gear set 46 are both installed in the inner groove of the limiting slide plate 42.

[0025] In a preferred embodiment, the electric push rod 43 pushes the limiting slide plate 42 to move left and right, causing the pinch roller 4 and the auxiliary pinch roller 41 to move horizontally. During the horizontal movement, the tension of the transfer laser paper is adjusted between the upper tension roller 2 and the lower tension roller 3, thereby adjusting the tension of the transfer laser paper more quickly and timely during production and conveying. The motor 45 drives the transmission shaft 44 on the front side of the two sets of connecting columns 48 to rotate through the meshing gear set 46, so that the pinch roller 4 and the auxiliary pinch roller 41 assist in conveying the transferred laser paper downward to the lower tension roller 3.

[0026] In this embodiment, rubber roller sleeves 49 are fitted onto the outer roller surfaces of both the main pinch roller 4 and the auxiliary pinch roller 41; and the auxiliary pinch roller 41 is symmetrically located at the left end of the main pinch roller 4.

[0027] As a preferred embodiment, the sleeved rubber roller 49 can be disassembled, making it easy to replace rubber roller 49s of different thicknesses, thereby changing the distance between the main pinch roller 4 and the auxiliary pinch roller 41, so that the distance between the main pinch roller 4 and the auxiliary pinch roller 41 is consistent with the thickness of the transfer laser paper, which facilitates the stable transport of the transfer laser paper by the main pinch roller 4 and the auxiliary pinch roller 41.

[0028] The automatic tension adjustment mechanism for transfer laser paper production of this utility model can effectively solve the problem that the force oscillation of transfer laser paper is easily caused when the vertical movement and adjustment of the two sets of tension rollers changes significantly in the prior art. It further reduces the change of adjustment distance in a single direction, enhances the stability of transfer laser paper production and conveying, reduces the tension oscillation of transfer laser paper, and improves the quality of transfer laser paper production and conveying. It is applicable to automatic tension adjustment mechanisms for transfer laser paper production.

Claims

1. An automatic tension adjustment mechanism for producing transfer laser paper, comprising: The upper tension roller (2) and the lower tension roller (3) are provided with a front adjusting frame (1) and a rear adjusting frame (11) on their front and rear sides, characterized in that: A main pinch roller (4) and an auxiliary pinch roller (41) are provided between the upper tension roller (2) and the lower tension roller (3). A drive shaft (44) is connected to the inner side of both the main pinch roller (4) and the auxiliary pinch roller (41). A limit slide plate (42) is installed at the rear end of the drive shaft (44) through a connecting column (48). An electric push rod (43) is connected to the left end of the limit slide plate (42). A gear set (46) is installed on the cylindrical surface of the connecting column (48). A motor (45) is connected to the rear end of the connecting column (48). A tension sensor (47) is embedded in the surface of the drive shaft (44) inside the main pinch roller (4).

2. The automatic tension adjustment mechanism for producing transfer laser paper according to claim 1, characterized in that, The first adjusting screw (22) and the second adjusting screw (31) are respectively installed in the groove of the front adjusting frame (1). The rod surface of the first adjusting screw (22) is connected to the front end of the upper tensioning roller (2) through a nut block.

3. The automatic tension adjustment mechanism for producing transfer laser paper according to claim 2, characterized in that, The second adjusting screw (31) is connected to the front end face of the lower tension roller (3) through a nut block, and the upper end of the second adjusting screw (31) is connected to a motor (32).

4. The automatic tension adjustment mechanism for producing transfer laser paper according to claim 2, characterized in that, The upper end of the first adjusting screw (22) is connected to a motor (21), and the rear ends of the upper tension roller (2) and the lower tension roller (3) are connected to a guide shaft (13) through a linear bearing.

5. The automatic tension adjustment mechanism for producing transfer laser paper according to claim 1, characterized in that, Two sets of guide shafts (13) are installed on the inner side groove wall of the rear adjustment frame (11), and a feed guide roller (12) is installed on the upper left end of the upper tension roller (2).

6. The automatic tension adjustment mechanism for producing transfer laser paper according to claim 1, characterized in that, The rear adjustment frame (11) is connected to a limiting slide plate (42) in the middle, and an electric push rod (43) is fixed on the left end face of the rear adjustment frame (11).

7. The automatic tension adjustment mechanism for producing transfer laser paper according to claim 1, characterized in that, The motor 3 (45) is fixed on the rear plate surface of the limiting slide plate (42), and the connecting column (48) and gear set (46) are both installed in the inner groove of the limiting slide plate (42).

8. The automatic tension adjustment mechanism for producing transfer laser paper according to claim 1, characterized in that, Both the main pinch roller (4) and the auxiliary pinch roller (41) have rubber roller sleeves (49) fitted on their outer roller surfaces; and the auxiliary pinch roller (41) is symmetrically located at the left end of the main pinch roller (4).

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