A gold stamping film winding and unwinding module structure of a digital printing machine

Abstract

The present application relates to the technical field of module structure on stamping press, more particularly, it relates to a gilding film winding and unwinding module structure of digital printing machine, which comprises a rack, a mounting table, an unwinding shaft and a winding shaft, the rack comprises a front wall plate, a rear wall plate and a light pole connecting the front and rear wall plates, the mounting table is slidingly arranged on the rear wall plate, the unwinding shaft and the winding shaft have closed ends and open ends, the closed ends of the unwinding shaft and the winding shaft are connected to the mounting table, the open ends of the unwinding shaft and the winding shaft are towards the front wall plate, the front wall plate is provided with two groups of lifting support groups for supporting the open ends of the unwinding shaft and the winding shaft respectively, and the front wall plate is provided with rolling support groups outside the open ends for providing rolling support for the winding materials of the unwinding shaft and the winding shaft respectively, the gilding film winding and unwinding module structure of digital printing machine can solve the problem of easy bending caused by single support during the process of supplementing new winding for the unwinding shaft and removing waste winding for the winding shaft.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of module structure on stamping press, in particular to a gold stamping film winding and unwinding module structure of digital printing machine. BACKGROUND

[0002] There are various types of digital printing machines, including stamping press, which is mainly used for transferring gold stamping film such as gold foil to printing medium through hot pressing technology, so as to process beautiful printing products. The gold stamping film winding and unwinding module structure is usually arranged in the stamping press, wherein the unwinding shaft is used to unwind the intact gold stamping film and transfer it to the printing medium, and then the waste film generated is wound by the winding film to avoid too much waste film accumulation in the printing process, so as to affect the printing quality and the normal operation of the machine.

[0003] Based on the above working process, the unwinding shaft needs to be supplemented with a new roll after being emptied, and the winding shaft needs to be removed from the waste roll after being full. Therefore, one end of the unwinding shaft and the winding shaft needs to be opened, so that only one support point of the unwinding table and the winding shaft exists at this time. In the early stage of supplementing the new roll of the unwinding shaft and in the late stage of removing the waste roll of the winding table, the support arm of the unwinding shaft and the winding shaft is relatively long, which causes the single support point of the unwinding shaft and the winding shaft to be stressed too much and easily bent, thereby causing damage to the gold stamping film winding and unwinding module structure. SUMMARY

[0004] In order to solve the problem of easy bending caused by single support during the process of supplementing the new roll of the unwinding shaft and the process of removing the waste roll of the winding shaft, the present application provides a gold stamping film winding and unwinding module structure of digital printing machine.

[0005] The gold stamping film winding and unwinding module structure of digital printing machine provided by the present application adopts the following technical scheme:

[0006] A gold stamping film winding and unwinding module structure of digital printing machine, comprising a rack, a mounting table, an unwinding shaft and a winding shaft, the rack comprises a front wall plate, a rear wall plate and a light rod connected between the front wall plate and the rear wall plate; the mounting table is slidingly arranged on the rear wall plate in the front-rear direction, the unwinding shaft and the winding shaft each have a closed end and an open end, the closed end of the unwinding shaft and the closed end of the winding shaft are each rotationally connected to the mounting table, and the open end of the unwinding shaft and the open end of the winding shaft each face the front wall plate; the front wall plate is provided with two groups of lifting support groups, and the two groups of lifting support groups respectively support the open end of the unwinding shaft and the open end of the winding shaft; the front wall plate is provided with two groups of rolling support groups, and the two groups of rolling support groups respectively provide rolling support for the winding material of the unwinding shaft and the winding shaft outside the open end.

[0007] Preferably, the mounting table is provided with a first motor and a magnetic powder brake, the first motor is connected with the winding shaft, and the magnetic powder brake is connected with the unwinding shaft.

[0008] Preferably, each of the two groups of rolling support groups comprises a first roller and a second roller, the front wall plate is provided with a rotating shaft, the first roller and the second roller are coaxially fixedly connected to the rotating shaft, and the first roller and the second roller are respectively used to provide rolling support for the winding shaft and the unwinding shaft outside the open end.

[0009] Preferably, the front wall plate is provided with a second motor, the output shaft of the second motor is connected with a first synchronous wheel, the rotating shaft is connected with a second synchronous wheel, and the first synchronous wheel and the second synchronous wheel are connected with a first synchronous belt.

[0010] Preferably, the front wall plate and the rear wall plate are connected with a guide rod, a sliding block is slidingly arranged on the guide rod, the inner side of the front wall plate and the inner side of the rear wall plate are provided with abutting rods, the two abutting rods are respectively used to abut the two ends of the sliding block, the distance between the two abutting rods is less than the axial length of the winding material, the output shaft of the second motor is fixedly connected with a third synchronous wheel, the rear wall plate is rotatably provided with a fourth synchronous wheel, the third synchronous wheel and the fourth synchronous wheel are spaced apart front and back and connected with a second synchronous belt, the second synchronous belt is connected with the lower end of the sliding block, and the sliding block moves close to the front wall plate as the winding shaft moves out of the winding material, and the sliding block moves close to the rear wall plate as the unwinding shaft feeds in the winding material.

[0011] Preferably, the sliding block is made of steel material, and the weight of the sliding block is not less than the sum of the weights of the first motor and the magnetic powder brake.

[0012] Preferably, the front wall plate is provided with two foot pedals, and the two foot pedals are respectively used to control the forward rotation and reverse rotation of the rotating shaft.

[0013] Preferably, the length of the abutting rod is adjustable, and the abutting rod comprises a fixed rod fixed to the frame and a movable rod threadedly connected to the fixed rod.

[0014] Preferably, each of the two groups of rolling support groups further comprises a first guide seat and a second guide seat, the first guide seat and the first roller are arranged front and back, the second guide seat and the second roller are arranged front and back, and the top surfaces of the first guide seat and the second guide seat are arc-shaped and used to fit the bottom surface of the winding material.

[0015] Preferably, the lifting support group comprises a support plate vertically slidingly arranged on the inner side of the rear wall plate and a gas cylinder fixedly arranged on the inner side of the rear wall plate, and the extension end of the gas cylinder is upward and fixedly connected with the support plate.

[0016] The beneficial effects of the present application are:

[0017] 1. Two groups of rolling support groups are respectively used to provide rolling support for the new roll in the early stage of supplementing the new roll to the unwinding shaft and to provide rolling support for the waste roll in the late stage of removing the waste roll from the winding shaft, that is, the new roll is supported by the unwinding shaft and one group of rolling support groups in the early stage of supplementing, and the waste roll is supported by the winding shaft and the other group of rolling support groups in the late stage of removing, so as to avoid the bending of the unwinding shaft due to excessive force on a single support point in the early stage of supplementing the new roll and the bending of the winding shaft due to excessive force on a single support point in the late stage of removing the waste roll, thereby avoiding the damage of the gilding film winding and unwinding module structure;

[0018] 2. In the process of removing the waste roll from the winding shaft, the rotating shaft rotates outwardly, so that the first roller can assist the human force to remove the waste roll in contact with it outwardly, and in the process of supplementing the new roll to the unwinding shaft, the rotating shaft rotates inwardly, so that the second roller can assist the human force to supplement the new roll in contact with it inwardly, thereby achieving the effect of saving labor;

[0019] 3. When the rotating shaft rotates outwardly to assist in removing the waste roll from the winding shaft, the sliding block moves outwardly at the same time; when the rotating shaft rotates inwardly to assist in supplementing the new roll to the unwinding shaft, the sliding block moves inwardly at the same time. In this process, due to the setting of the two abutting rods, the one-way sliding distance of the sliding block will not exceed the axis length of the gilding film roll, so that the first roller is prevented from actively removing the waste roll from the winding shaft as a whole, the safety is improved, and the second roller is prevented from actively supplementing the new roll to the unwinding shaft as a whole, thereby avoiding the impact on the mounting table;

[0020] 4. The sliding block has a large weight. On the one hand, while the second motor drives the sliding block with a large weight to move, the first roller and the second roller can output high torque and low speed, so that the waste roll on the winding shaft can be removed and the new roll can be supplemented to the unwinding shaft more smoothly. On the other hand, the sliding block moves away from one side of the mounting table with the removal of the waste roll. By setting the sliding block with a large weight, the sliding block also has a counterweight effect, so that when the winding shaft and the unwinding shaft are empty, the center of gravity of the rack is still relatively in the middle, thereby reducing the risk of tilting at this time. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is the overall schematic diagram of the gilding film winding and unwinding module structure of the digital printing machine in the embodiment of the present application.

[0022] Explanation of reference signs: 1, frame; 11, front wall plate; 12, rear wall plate; 13, light pole; 2, mounting table; 21, first motor; 22, magnetic powder brake; 3, unwinding shaft; 4, winding shaft; 5, lifting support group; 51, support plate; 52, air cylinder; 6, rolling support group; 61, first roller; 62, second roller; 63, rotating shaft; 64, first guide seat; 65, second guide seat; 7, second motor; 71, first synchronous wheel; 72, second synchronous wheel; 73, third synchronous wheel; 74, fourth synchronous wheel; 75, first synchronous belt; 76, second synchronous belt; 81, guide rod; 82, sliding block; 83, abutting rod; 9, dust removal section film guide roller. DETAILED DESCRIPTION

[0023] The application will be further described below with reference to the accompanying drawings and embodiments. Figure 1 and embodiments.

[0024] The embodiment discloses a gold stamping film winding and unwinding module structure of a digital printing machine.

[0025] With reference to Figure 1 The gold stamping film winding and unwinding module structure of the digital printing machine comprises a frame 1, a mounting table 2, an unwinding shaft 3 and a winding shaft 4. The mounting table 2 is arranged on the frame 1. The unwinding shaft 3 and the winding shaft 4 each have a closed end and an open end. The closed ends of the unwinding shaft 3 and the winding shaft 4 are each rotationally connected to the mounting table 2. The unwinding shaft 3 and the winding shaft 4 are parallel to each other. Since the unwinding shaft 3 is passive unwinding, a driving force for pulling the gold stamping film is arranged in front of the unwinding shaft 3, so the unwinding shaft 3 does not need to be connected to a driving member for active driving. On the contrary, the winding shaft 4 is active winding, so the winding shaft 4 needs to be connected to a driving force for active driving. Therefore, the mounting table 2 is provided with a first motor 21. The first motor 21 is connected to the winding shaft 4 to actively drive the winding shaft 4 to wind the waste film. At the same time, the first motor 21 provides a stable torque for the winding shaft 4, so that the winding process has a constant winding tension. Further, the mounting table 2 is also provided with a magnetic powder brake 22. The magnetic powder brake 22 is connected to the unwinding shaft 3, so that the unwinding process also has a constant tension.

[0026] With reference to Figure 1, the front wall plate 11 is provided with two groups of lifting support groups 5, and the two groups of lifting support groups 5 are respectively used for supporting the open end of the unwinding shaft 3 and the open end of the winding shaft 4. The lifting support group 5 is provided so that the unwinding shaft 3 has two supporting points during unwinding and the winding shaft 4 has two supporting points during winding, thereby avoiding the bending of the unwinding shaft 3 during unwinding and the bending of the winding shaft 4 during winding. Specifically, the lifting support group 5 includes a support plate 51 vertically slidingly arranged on the inner side of the rear wall plate 12 and a gas cylinder 52 fixedly arranged on the inner side of the rear wall plate 12. The extension end of the gas cylinder 52 is upward and fixedly connected with the support plate 51. When the gas cylinder 52 controls the support plate 51 to rise, the support plate 51 is used for supporting the unwinding shaft 3 or the winding shaft 4. When the gas cylinder 52 controls the support plate 51 to descend, the open ends of the unwinding shaft 3 and the winding shaft 4 are in an open state, so as to supplement new rolls into the unwinding shaft 3 or remove waste rolls from the winding shaft 4.

[0027] With reference to Figure 1 , the mounting table 2 is slidingly arranged on the rear wall plate 12 of the rack 1. The sliding direction of the mounting table 2 is parallel to the axis direction of the unwinding shaft 3 and the winding shaft 4, so that the sliding of the mounting table 2 can control the axial movement of the unwinding shaft 3 and the winding shaft 4, so as to adjust according to the axial size of the gilding film roll. Specifically, a slide rail and a screw rod mechanism are arranged between the mounting table 2 and the rear wall plate 12 of the rack 1. The mounting table 2 slides through the guidance of the slide rail and the linear driving force of the screw rod.

[0028] With reference to Figure 1 , the outer side of the front wall plate 11 of the rack 1 is fixedly provided with two groups of rolling support groups 6. The two groups of rolling support groups 6 are respectively used for providing rolling support for the new roll in the early stage of supplementing the new roll by the unwinding shaft 3 and for providing rolling support for the waste roll in the late stage of removing the waste roll by the winding shaft 4. That is, the new roll is supported by the unwinding shaft 3 and one group of rolling support groups 6 in the early stage of supplementing the new roll, and the waste roll is supported by the winding shaft 4 and the other group of rolling support groups 6 in the late stage of removing the waste roll. Thus, the unwinding shaft 3 and the winding shaft 4 are not easily bent due to excessive force on a single supporting point in the early stage of supplementing the new roll and in the late stage of removing the waste roll, so that the gilding film unwinding and winding module structure is not easily damaged.

[0029] It should be noted that since the waste film recovered by the winding shaft 4 is discharged by the unwinding shaft 3, when the unwinding shaft 3 is empty, the waste film of the winding shaft 4 has also been recovered more, so the process of the unwinding shaft 3 supplementing the new roll and the process of the winding shaft 4 removing the waste roll are usually based on the same time period, but it should be avoided to supplement the new roll when the waste roll is not removed, because it will cause the mounting table 2 and the rack 1 to bear a larger pressure, thereby easily causing damage. Based on this, the embodiment also discloses a roll changing method of the gold stamping film winding and unwinding module structure of the digital printing machine: first control the lifting support group 5 to descend, so that the open ends of the unwinding shaft 3 and the winding shaft 4 are in an open state, then pull out the waste roll from the winding shaft 4, one of the rolling support groups 6 provides rolling support during the waste roll pulling out process, then push the new roll into the unwinding shaft 3, the other rolling support group 6 provides rolling support during the new roll pushing in process, and then control the lifting support group to rise again after the roll changing is completed. In addition, before pulling out the waste roll, the mounting table 2 can be controlled to move closer to the rolling support group 6, so that the rolling support group 6 can provide rolling support for the waste roll and the new roll more quickly.

[0030] With reference to Figure 1 , the two groups of rolling support groups 6 respectively include a first roller 61 and a second roller 62, and a first frame plate is arranged outside the front wall plate 11 of the rack 1, a rotating shaft 63 is rotationally arranged on the first frame plate, and the first roller 61 and the second roller 62 are coaxially and fixedly connected to the rotating shaft 63. The two groups of rolling support groups 6 respectively provide rolling support for the winding shaft 4 removing the waste roll and the unwinding shaft 3 supplementing the new roll through the first roller 61 and the second roller 62. Further, the two groups of rolling support groups 6 respectively include a first guide seat 64 and a second guide seat 65, the first guide seat 64 and the first roller 61 are arranged in front and back, the second guide seat 65 and the second roller 62 are arranged in front and back, the top surfaces of the first guide seat 64 and the second guide seat 65 are arc-shaped and are respectively used for abutting the bottom surfaces of the waste roll and the new roll, and the first guide seat 64 and the second guide seat 65 can respectively provide additional guiding effect for the removal of the waste roll and the supplement of the new roll.

[0031] With reference to Figure 1The outer side of the front wall plate 11 of the rack 1 is further provided with a second frame plate, which is located below the first frame plate, and the second frame plate is provided with a second motor 7, and the output shaft of the second motor 7 is fixedly connected with a first synchronous wheel 71. The first frame plate is rotatably provided with a second synchronous wheel 72, and the second synchronous wheel 72 is coaxially fixedly connected with the rotating shaft 63. Further, the first synchronous wheel 71 and the second synchronous wheel 72 are connected with a first synchronous belt 75. Through the above arrangement, on the one hand, in the process of moving out the waste roll of the winding shaft 4, the rotating shaft 63 is controlled to actively rotate outward, so that the first roller 61 can assist the manpower to move the waste roll in contact with it outward, achieving the effect of saving manpower; on the other hand, when the new roll is supplemented to the unwinding shaft 3, the rotating shaft 63 is controlled to actively rotate inward, so that the second roller 62 can assist the manpower to supplement the new roll in contact with it inward, also achieving the effect of saving manpower.

[0032] In the remaining embodiments, in order to conveniently control the rotation and turning of the rotating shaft 63, thereby more conveniently utilizing the first roller 61 and the second roller 62 to achieve the effect of saving manpower, the outer side of the bottom of the front wall plate 11 of the rack 1 is provided with two foot pedals, and the two foot pedals control the rotating shaft 63 to rotate in two directions, so that the operator can operate with hands and feet, achieving the effect of convenient control.

[0033] Referring to Figure 1The front wall plate 11 and the rear wall plate 12 of the rack 1 are connected with a guide rod 81, the length direction of the guide rod 81 is parallel to the axis direction of the unwinding shaft 3 and the winding shaft 4, a sliding block 82 is slidingly arranged on the guide rod 81, and the cross section shape of the guide rod 81 is hexagonal in the embodiment. Further, the inner side of the front wall plate 11 and the inner side of the rear wall plate 12 are both provided with abutting rods 83, the length of the abutting rods 83 is adjustable along the length direction of the guide rod 81, and the two abutting rods 83 are respectively used for abutting the end face of the sliding block 82 at both ends of the guide rod 81, the distance between the two abutting rods 83 is the maximum distance of the one-way sliding of the sliding block 82, and it needs to be noted that in the present application, it is necessary to ensure that the distance between the two abutting rods 83 is less than the axial length of the gilding film coiled material. Further, the output shaft of the second motor 7 is further fixedly connected with a third synchronous wheel 73, the outer side of the rear wall plate 12 of the rack 1 is rotatably provided with a fourth synchronous wheel 74, the third synchronous wheel 73 and the fourth synchronous wheel 74 are spaced apart front and back and connected with a second synchronous belt 76, and the lower end of the sliding block 82 is connected with the second synchronous belt 76, so that the movement of the second synchronous belt 76 can drive the sliding block 82 to slide. And when the second motor 7 controls the rotating shaft 63 to rotate outward to assist in moving out the waste roll of the winding shaft 4, at this time, the second synchronous belt 76 drives the sliding block 82 to move outward; when the second motor 7 controls the rotating shaft 63 to rotate inward to assist in supplementing the new roll to the unwinding shaft 3, at this time, the second synchronous belt 76 drives the sliding block 82 to move inward. In this process, since the one-way sliding distance of the sliding block 82 is ensured not to exceed the axial length of the gilding film coiled material by the arrangement of the two abutting rods 83, the first roller 61 can be prevented from actively moving out the waste roll from the winding shaft 4 as a whole, the safety is improved, and the second roller 62 can be prevented from actively moving in the new roll to the unwinding shaft 3 as a whole, so that the impact on the mounting table 2 is avoided.

[0034] With reference to Figure 1 The abutting rod 83 comprises a fixed rod fixed on the rack 1 and a movable rod threadedly connected with the fixed rod, so that the abutting rod 83 can be controlled to be extended and retracted by screwing the movable rod, and the distance between the two abutting rods 83 can be adjusted according to actual needs.

[0035] With reference to Figure 1The slider 82 is made of a material with a large density, such as cast iron, steel, lead, tungsten alloy, and in the embodiment, the slider 82 is made of steel. The weight of the slider 82 is not less than the sum of the weight of the first motor 21 and the magnetic powder brake 22. The slider 82 has a large weight, which has the following purposes: first, the second motor 7 can make the first roller 61 and the second roller 62 output high torque and low speed when driving the slider 82 with a large weight to move, so that the waste roll on the winding shaft 4 can be moved out more smoothly and the new roll can be supplemented into the unwinding shaft 3; second, when the waste roll on the winding shaft 4 is moved out, the winding shaft 4 and the unwinding shaft 3 are in an empty state, and the height of the mounting table 2 is high and the weight is large, which can cause the center of gravity of the rack 1 to deviate to the side of the mounting table 2, so that the rack 1 is prone to overturning. In the present application, the slider 82 moves away from the side of the mounting table 2 with the movement of the waste roll. By setting the slider 82 with a large weight, the slider 82 also has a counterweight effect, so that when the winding shaft 4 and the unwinding shaft 3 are empty, the center of gravity of the rack 1 is still relatively centered, reducing the risk of overturning at this time.

[0036] With reference to Figure 1 The front wall plate 11 and the rear wall plate 12 of the rack 1 are also provided with a plurality of dust removal section film guide rollers 9. The dust removal section film guide rollers 9 are used to guide the movement of the gold stamping film and perform dust removal. Therefore, the positions of the polished rod 13, the guide rod 81, the slider 82 and the second synchronous belt 76 should be avoided to hinder the connection of the gold stamping film between the dust removal section film guide rollers 9.

[0037] The above are preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, any equivalent changes made on the basis of the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A gilding film winding and unwinding module structure of a digital printing machine, characterized in that: The application relates to a winding and unwinding machine, which comprises a rack (1), a mounting table (2), an unwinding shaft (3) and a winding shaft (4), the rack (1) comprises a front wall plate (11), a rear wall plate (12) and a light pole (13) connected between the front wall plate (11) and the rear wall plate (12); the mounting table (2) is slidably arranged on the rear wall plate (12) in the front-rear direction, the unwinding shaft (3) and the winding shaft (4) each have a closed end and an open end, the closed ends of the unwinding shaft (3) and the winding shaft (4) are rotationally connected to the mounting table (2), and the open ends of the unwinding shaft (3) and the winding shaft (4) are both directed towards the front wall plate (11); the front wall plate (11) is provided with two groups of lifting support groups (5), the two groups of lifting support groups (5) respectively support the open ends of the unwinding shaft (3) and the winding shaft (4); the front wall plate (11) is provided with two groups of rolling support groups (6), and the two groups of rolling support groups (6) respectively provide rolling support for the coiled materials of the unwinding shaft (3) and the winding shaft (4) outside the open ends; A first motor (21) and a magnetic powder brake (22) are arranged on the mounting table (2), the first motor (21) is connected to the winding shaft (4), and the magnetic powder brake (22) is connected to the unwinding shaft (3); Each of the two groups of rolling support groups (6) comprises a first roller (61) and a second roller (62), the front wall plate (11) is provided with a rotationally arranged rotating shaft (63), the first roller (61) and the second roller (62) are coaxially fixedly connected to the rotating shaft (63), and the first roller (61) and the second roller (62) are respectively used for providing rolling support for the coiled materials of the winding shaft (4) and the unwinding shaft (3) outside the open ends; The front wall plate (11) is provided with a second motor (7), an output shaft of the second motor (7) is connected with a first synchronous wheel (71), the rotating shaft (63) is connected with a second synchronous wheel (72), and a first synchronous belt (75) is connected between the first synchronous wheel (71) and the second synchronous wheel (72).

2. The gold stamping film winding and unwinding module structure of a digital printing machine according to claim 1, characterized in that: A guide rod (81) is connected between the front wall plate (11) and the rear wall plate (12), a sliding block (82) is slidably arranged on the guide rod (81), the inner side of the front wall plate (11) and the inner side of the rear wall plate (12) are provided with abutting rods (83), the two abutting rods (83) are respectively used for abutting the two ends of the sliding block (82), the distance between the two abutting rods (83) is less than the axial length of the coiled material, the output shaft of the second motor (7) is fixedly connected with a third synchronous wheel (73), the rear wall plate (12) is rotatably provided with a fourth synchronous wheel (74), the third synchronous wheel (73) and the fourth synchronous wheel (74) are spaced apart front and back and connected with a second synchronous belt (76), the second synchronous belt (76) is connected with the lower end of the sliding block (82), the sliding block (82) is close to the front wall plate (11) when the coiled material is moved out of the winding shaft (4), and the sliding block (82) is close to the rear wall plate (12) when the coiled material is supplemented into the unwinding shaft (3).

3. The gilding film winding and unwinding module structure of a digital printing machine according to claim 2, characterized in that: The sliding block (82) is made of steel material, and the weight of the sliding block (82) is not less than the sum of the weight of the first motor (21) and the magnetic powder brake (22).

4. The gilding film winding and unwinding module structure of a digital printing machine according to claim 1, characterized in that: The front wall plate (11) is provided with two foot pedals, and the two foot pedals control the forward rotation and reverse rotation of the rotating shaft (63) respectively.

5. The gilding film winding and unwinding module structure of a digital printing machine according to claim 2, characterized in that: The length of the abutting rod (83) is adjustable, and the abutting rod (83) comprises a fixed rod fixed on the rack (1) and a movable rod threadedly connected on the fixed rod.

6. The gilding film winding and unwinding module structure of a digital printing machine according to claim 1, characterized in that: The two groups of rolling support groups (6) further comprise a first guide seat (64) and a second guide seat (65), the first guide seat (64) and the first roller (61) are arranged front and back, the second guide seat (65) and the second roller (62) are arranged front and back, and the top surfaces of the first guide seat (64) and the second guide seat (65) are arc-shaped and used for fitting the bottom surface of the coiled material.

7. The gilding film winding and unwinding module structure of a digital printing machine according to claim 1, characterized in that: The lifting support group (5) comprises a support plate (51) vertically and slidably arranged on the inner side of the rear wall plate (12) and a gas cylinder (52) fixedly arranged on the inner side of the rear wall plate (12), and the extension end of the gas cylinder (52) is upward and fixedly connected with the support plate (51).

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