Take-up and pay-off assembly for printing coiled materials

Abstract

The utility model relates to the technical field of printing coiled material winding and unwinding, and discloses a printing coiled material winding and unwinding assembly which comprises a supporting frame, a first mounting frame is fixedly mounted on the supporting frame, a rear transition roller is rotatably mounted at the end, away from the supporting frame, of the first mounting frame, and a fixing seat is fixedly mounted on the supporting frame. A transmission seat is fixedly installed at the end, away from the supporting frame, of the fixing seat, and a rear driving roller is fixedly installed at the output end of the transmission seat. According to the winding and unwinding assembly for the printing coiled material, the air cylinder drives the mounting rod to drive the tensioning roller to move up and down, the tension of the printing coiled material can be dynamically adjusted, when the tension of the coiled material fluctuates due to winding and unwinding diameter changes, the air cylinder can keep the coiled material in a tensioning state in real time through air pressure compensation, and the loosening or over-tightening phenomenon is avoided; and the tensioning assembly is located between the rear driving roller and the upper driving assembly, a transmission path from driving to tensioning and then driving is formed, and tension fluctuation of the coiled material in the transmission process can be effectively decomposed.

Description

Technical Field

[0001] This utility model relates to the field of printing roll winding technology, specifically a winding component for printing rolls. Background Technology

[0002] During the printing process, a winding and unwinding machine is usually used to mechanically wind and unwind the material into rolls. It is widely used in paper rolls, cloth rolls, plastic rolls, and metal roll processing production lines. The design of winding and unwinding machines is diversified according to actual process requirements, and the specifications and types of winding and unwinding machines are becoming more and more diverse and their applications are becoming more and more flexible.

[0003] Chinese Utility Model Patent Publication No. CN218201581U discloses a roll-up and unrolling device for flatbed inkjet printing rolls. The specification of this device describes a roll-up process where, during winding, the roll is cut into multiple rolls by a cutting device. Then, as it passes through a pressure roller device, a geared motor drives the pressure roller to rotate, flattening the divided rolls and preventing edge bending. Simultaneously, two dust removal rollers remove dust from the outside of the roll, improving its cleanliness. However, while this roll-up and unrolling device can perform cutting functions, it is not convenient for adjusting the tension of the roll during use, easily leading to either looseness or excessive tightness, which can cause damage or affect subsequent normal use. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a roll-up and take-up component for printing rolls. It can effectively solve the problem in the prior art that, although it can play a role in cutting, it is not convenient to adjust the tension of the roll during use, which can easily lead to the roll becoming loose or too tight, thus causing damage or affecting its normal use.

[0005] The technical solution adopted by this utility model is: a roll-up and take-up assembly for printing rolls, including a support frame, a mounting frame 1 fixedly installed on the support frame, a rear transition roller rotatably installed at the end of the mounting frame 1 away from the support frame, a fixed seat fixedly installed on the support frame, a transmission seat fixedly installed at the end of the fixed seat away from the support frame, a rear drive roller fixedly installed at the output end of the transmission seat, a tensioning assembly fixedly installed at the inner edge of the support frame, an upper drive assembly fixedly installed on the support frame, and an air shaft mounting frame fixedly installed at the end of the support frame away from the mounting frame 1.

[0006] The upper drive assembly includes a base, on which a fixing frame is fixedly installed. An active motor is fixedly installed at the end of the fixing frame away from the base, and an upper drive roller is fixedly installed at the output end of the active motor.

[0007] Preferably, the tensioning assembly includes a second mounting frame, on which a cylinder is fixedly mounted, and a mounting rod is fixedly mounted at the output end of the cylinder, with a tensioning roller rotatably mounted at the outer edge of the mounting rod.

[0008] Through the above technical solution, the cylinder drives the mounting rod to move the tension roller up and down, which can dynamically adjust the tension of the printing roll. When the tension of the roll fluctuates due to changes in the winding and unwinding diameter, the cylinder can maintain the tension of the roll in real time through air pressure compensation, avoiding slack or over-tightness.

[0009] Preferably, the tensioning assembly is located between the rear drive roller and the upper drive assembly, and the height of the tensioning assembly is lower than that of the rear drive roller.

[0010] With the above technical solution, the tensioning component is located between the rear drive roller and the upper drive component, forming a transmission path of "drive to tension and then drive". This can effectively decompose the tension fluctuation of the roll material during the transmission process. Its height is lower than that of the rear drive roller, so that the roll material forms a downward arc-shaped tension zone, using gravity to assist in tensioning. At the same time, it avoids the roll material from shifting due to excessive lifting, ensuring that the roll material maintains a horizontal posture when entering the upper drive component, and reducing positional deviation during the printing process.

[0011] Preferably, a second fixing frame is fixedly installed at one end of the support frame away from the fixed seat, and a front transition roller is rotatably installed at the other end of the second fixing frame away from the support frame.

[0012] Through the above technical solution, the front transition roller can guide the roll material to smoothly transition from the rear drive roller to the upper drive assembly, avoiding wrinkles or deviation of the roll material due to abrupt changes in the transmission path. Its height is matched with the rear drive roller, so that the roll material forms a straight transmission path, reducing transmission resistance, and at the same time providing stable front and rear support points for tension adjustment of the tensioning assembly.

[0013] Preferably, a mounting base is fixedly installed on the support frame, and a lower transition roller is rotatably installed at the other end of the mounting base away from the support frame.

[0014] With the above technical solution, the lower transition roller is located between the upper drive assembly and the air shaft mounting frame, which can guide the roll material to smoothly transition from the drive area to the winding area.

[0015] Preferably, the lower transition roller is located between the upper drive assembly and the air shaft mounting bracket.

[0016] Through the above technical solution, the position of the lower transition roller optimizes the transmission trajectory of the roll material from the printing area to the winding area. After the roll material passes the upper drive roller, the rotation of the lower transition roller allows the roll material to be wound on the air shaft at a suitable angle, avoiding edge stacking or center offset during winding.

[0017] Preferably, the height of the upper drive assembly is higher than the height of the rear drive roller, and the bottom of the support frame is fixedly installed with feet.

[0018] With the above technical solution, the upper drive component is higher than the rear drive roller, so that the roll material forms an upward transmission slope, which makes it easier for the tensioning component to apply tension to the roll material from below, while avoiding unstable transmission caused by the roll material sagging due to gravity.

[0019] Compared with the prior art, the present invention provides a roll-up and take-up assembly for printing rolls, which has the following advantages:

[0020] The roll-to-roll assembly for printing uses a cylinder-driven mounting rod to move the tensioning roller up and down, dynamically adjusting the tension of the roll-to-roll. When tension fluctuates due to changes in roll diameter during take-up and untake-down, the cylinder compensates for this with air pressure to maintain the roll-to-roll tension in real time, preventing slack or over-tightening. The tensioning assembly is located between the rear drive roller and the upper drive assembly, forming a "drive to tension and then drive" transmission path, which effectively decomposes tension fluctuations in the roll-to-roll during transmission. Its height is lower than the rear drive roller, creating a downward arc-shaped tension zone for the roll-to-roll, using gravity to assist in tensioning. This also prevents the roll-to-roll from shifting due to excessive upward lifting, ensuring that the roll-to-roll remains horizontal when entering the upper drive assembly, reducing positional deviations during printing. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;

[0022] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;

[0023] Figure 3 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 3 ;

[0024] Figure 4 This is a three-dimensional structural diagram of the upper drive component of this utility model;

[0025] Figure 5 This is a three-dimensional structural diagram of the tensioning component of this utility model.

[0026] The components are as follows: 1. Support frame; 2. Base; 3. Mounting frame one; 4. Rear transition roller; 5. Fixed seat; 6. Transmission seat; 7. Rear drive roller; 8. Tensioning assembly; 801. Mounting frame two; 802. Cylinder; 803. Mounting rod; 804. Tensioning roller; 9. Upper drive assembly; 901. Machine base; 902. Fixed frame one; 903. Active motor; 904. Upper drive roller; 10. Fixed frame two; 11. Front transition roller; 12. Mounting seat; 13. Lower transition roller; 14. Air shaft mounting frame. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Example 1: As Figure 1-5 As shown, this utility model provides a roll-up and take-up assembly for printing rolls.

[0029] Includes a support frame 1, on which a mounting bracket 3 is fixedly mounted, and a rear transition roller 4 is rotatably mounted on the end of the mounting bracket 3 away from the support frame 1. A fixed seat 5 is fixedly mounted on the support frame 1, and a transmission seat 6 is fixedly mounted on the end of the fixed seat 5 away from the support frame 1. A rear drive roller 7 is fixedly mounted on the output end of the transmission seat 6. A tensioning assembly 8 is fixedly mounted on the inner edge of the support frame 1. An upper drive assembly 9 is fixedly mounted on the support frame 1. An air shaft mounting bracket 14 is fixedly mounted on the end of the support frame 1 away from the mounting bracket 3.

[0030] The upper drive assembly 9 includes a base 901, a fixed frame 902 is fixedly mounted on the base 901, an active motor 903 is fixedly mounted on the end of the fixed frame 902 away from the base 901, and an upper drive roller 904 is fixedly mounted on the output end of the active motor 903.

[0031] Specifically, the tensioning assembly 8 includes a mounting frame 2 801, on which a cylinder 802 is fixedly mounted. A mounting rod 803 is fixedly mounted at the output end of the cylinder 802, and a tensioning roller 804 is rotatably mounted at the outer edge of the mounting rod 803. The advantage is that the cylinder 802 drives the mounting rod 803 to move the tensioning roller 804 up and down, which can dynamically adjust the tension of the printing roll. When the tension of the roll fluctuates due to changes in the winding and unwinding diameter, the cylinder 802 can maintain the tension of the roll in real time through air pressure compensation, avoiding slack or over-tightness.

[0032] Specifically, the tensioning component 8 is located between the rear drive roller 7 and the upper drive component 9. The height of the tensioning component 8 is lower than that of the rear drive roller 7. The advantage is that the tensioning component 8 is located between the rear drive roller 7 and the upper drive component 9, forming a "drive to tension and then drive" transmission path, which can effectively decompose the tension fluctuation of the roll material during the transmission process. Its height is lower than that of the rear drive roller 7, so that the roll material forms a downward arc-shaped tension zone, using gravity to assist in tensioning, while avoiding the roll material from shifting due to excessive lifting, ensuring that the roll material maintains a horizontal posture when entering the upper drive component 9, and reducing positional deviation during the printing process.

[0033] Specifically, a second fixed frame 10 is fixedly installed at one end of the support frame 1 away from the fixed seat 5, and a front transition roller 11 is rotatably installed at the other end of the second fixed frame 10 away from the support frame 1. The advantage is that the front transition roller 11 can guide the roll material to smoothly transition from the rear drive roller 7 to the upper drive assembly 9, avoiding wrinkles or deviation of the roll material due to abrupt changes in the transmission path. Its height matches that of the rear drive roller 7, so that the roll material forms a straight transmission path, reducing transmission resistance, and at the same time providing stable front and rear support points for the tension adjustment of the tensioning assembly 8.

[0034] Example 2: Figure 2-5 As shown, this is an improvement on the previous embodiment.

[0035] Specifically, a mounting base 12 is fixedly installed on the support frame 1, and a lower transition roller 13 is rotatably installed on the other end of the mounting base 12 away from the support frame 1. The advantage is that the lower transition roller 13 is located between the upper drive assembly 9 and the air shaft mounting frame 14, which can guide the roll material to smoothly transition from the drive area to the winding area.

[0036] Specifically, the lower transition roller 13 is located between the upper drive assembly 9 and the air shaft mounting bracket 14. The advantage is that the position of the lower transition roller 13 optimizes the transmission trajectory of the roll material from the printing area to the winding area. After the roll material passes the upper drive roller 904, the rotation of the lower transition roller 13 allows the roll material to be wound on the air shaft at a suitable angle, avoiding edge stacking or center offset during winding.

[0037] Specifically, the height of the upper drive assembly 9 is higher than the height of the rear drive roller 7, and the bottom of the support frame 1 is fixedly installed with a foot 2. The advantage is that the upper drive assembly 9 is higher than the rear drive roller 7, which makes the roll material form an upward transmission slope, which makes it easier for the tensioning assembly 8 to apply tension to the roll material from below, while avoiding unstable transmission caused by the roll material sagging due to gravity.

[0038] Working Principle: During use, cylinder 802 drives mounting rod 803 to move tension roller 804 up and down, dynamically adjusting the tension of the printing roll. When tension fluctuates due to changes in roll diameter, cylinder 802 maintains the roll tension in real time through air pressure compensation, preventing slack or over-tightening. Tensioning component 8 is located between rear drive roller 7 and upper drive component 9, forming a "drive to tension and then drive" transmission path, effectively decomposing tension fluctuations in the roll during transmission. Its height is lower than rear drive roller 7, creating a downward arc-shaped tension zone for gravity-assisted tensioning, while preventing roll offset due to excessive upward lifting. This ensures the roll maintains a horizontal posture when entering upper drive component 9, reducing positional deviation during printing. Front transition roller 11 guides the roll smoothly from rear drive roller 7 to upper drive component 9. To prevent the roll material from wrinkling or deviating due to abrupt changes in the transmission path, its height is matched with the rear drive roller 7, so that the roll material forms a straight transmission path, reducing transmission resistance. At the same time, it provides a stable front and rear support point for the tension adjustment of the tensioning assembly 8. The lower transition roller 13 is located between the upper drive assembly 9 and the air shaft mounting bracket 14, which can guide the roll material to smoothly transition from the driving area to the winding area. The position of the lower transition roller 13 optimizes the transmission trajectory of the roll material from the printing area to the winding area. After the roll material passes the upper drive roller 904, the lower transition roller 13 can turn the roll material to wind on the air shaft at a suitable angle, avoiding edge stacking or center offset during winding. The upper drive assembly 9 is higher than the rear drive roller 7, so that the roll material forms an upward transmission slope, which makes it easier for the tensioning assembly 8 to apply tension to the roll material from below, while avoiding transmission instability caused by the roll material sagging due to gravity.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A roll-up assembly for printing materials, comprising a support frame (1), characterized in that: Mounting bracket 1 (3) is fixedly installed on the support frame (1). A rear transition roller (4) is rotatably installed on the end of mounting bracket 1 (3) away from the support frame (1). A fixed seat (5) is fixedly installed on the support frame (1). A transmission seat (6) is fixedly installed on the end of the fixed seat (5) away from the support frame (1). A rear drive roller (7) is fixedly installed on the output end of the transmission seat (6). A tensioning assembly (8) is fixedly installed on the inner edge of the support frame (1). An upper drive assembly (9) is fixedly installed on the support frame (1). An air shaft mounting bracket (14) is fixedly installed on the end of the support frame (1) away from mounting bracket 1 (3). The upper drive assembly (9) includes a base (901), on which a first fixing frame (902) is fixedly installed. An active motor (903) is fixedly installed at one end of the first fixing frame (902) away from the base (901), and an upper drive roller (904) is fixedly installed at the output end of the active motor (903).

2. The roll-up and take-up assembly for printing materials according to claim 1, characterized in that: The tensioning assembly (8) includes a second mounting frame (801), on which a cylinder (802) is fixedly mounted. A mounting rod (803) is fixedly mounted at the output end of the cylinder (802), and a tensioning roller (804) is rotatably mounted at the outer edge of the mounting rod (803).

3. The roll-up and take-up assembly for printing materials according to claim 1, characterized in that: The tensioning assembly (8) is located between the rear drive roller (7) and the upper drive assembly (9), and the height of the tensioning assembly (8) is lower than that of the rear drive roller (7).

4. The roll-up and take-up assembly for printing materials according to claim 1, characterized in that: The support frame (1) is fixedly installed with a second fixed frame (10) at one end away from the fixed seat (5), and a front transition roller (11) is rotatably installed at the other end of the second fixed frame (10) away from the support frame (1).

5. The roll-up and take-up assembly for printing materials according to claim 1, characterized in that: A mounting base (12) is fixedly installed on the support frame (1), and a lower transition roller (13) is rotatably installed on the other end of the mounting base (12) away from the support frame (1).

6. The roll-up and take-up assembly for printing materials according to claim 5, characterized in that: The lower transition roller (13) is located between the upper drive assembly (9) and the air shaft mounting bracket (14).

7. The roll-up and take-up assembly for printing materials according to claim 1, characterized in that: The height of the upper drive assembly (9) is higher than the height of the rear drive roller (7), and the bottom of the support frame (1) is fixedly installed with feet (2).

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