Printing ink flatting machine PE film winding and unwinding device capable of automatically adjusting tension

Abstract

The utility model relates to the field of printing ink pressing machines, in particular to a winding and unwinding device capable of automatically adjusting tension of a PE film of a printing ink pressing machine. The winding and unwinding device capable of automatically adjusting the tension of the PE film of the printing ink flatting machine comprises a mounting plate, two winding rollers and two driving shafts are rotationally mounted on one side of the mounting plate, the winding rollers and the driving shafts are arranged in a staggered mode, a magnetic powder clutch is arranged on the other side of the mounting plate, and the magnetic powder clutch is in transmission connection with the winding rollers. The winding and unwinding device capable of automatically adjusting the tension of the PE film of the printing ink flatting machine has the advantages of being high in stability, capable of keeping constant winding and unwinding tension and better in film winding effect.

Description

Technical Field

[0001] This utility model relates to the field of ink flattening machines, and in particular to a winding and unwinding device for automatically adjusting the tension of PE film in an ink flattening machine. Background Technology

[0002] Existing ink flattening machines use a braking mechanism to control the tension of the PE film in their PE film winding and unwinding devices. However, this results in inconsistent braking force and unstable braking.

[0003] For example, patent document CN220723204U discloses a PE film resistance braking mechanism and an ink flattening machine. The PE film resistance braking mechanism includes a body, which includes a mounting base. A brake shaft is fixedly mounted on one side of the mounting base. A first transmission wheel is rotatably sleeved on the brake shaft. A brake disc is slidably sleeved on the brake shaft to the left of the first transmission wheel, and the brake disc contacts the first transmission wheel. A handwheel is threaded onto the brake shaft, and a spring is provided between the handwheel and the brake disc, with both ends of the spring abutting against the handwheel and the brake disc, respectively.

[0004] To address these technical problems, an automatic tension adjustment winding and unwinding device for PE film in an ink flattening machine is proposed. Utility Model Content

[0005] To solve the above-mentioned technical problems, the purpose of this utility model is to provide an automatic tension adjustment winding and unwinding device for PE film in an ink flattening machine, which has the advantages of strong stability, maintaining constant tension during winding and unwinding, and better film winding effect.

[0006] The technical solution adopted by this utility model to solve the problem is: an automatic tension adjustment winding and unwinding device for PE film of ink flattening machine, comprising: a mounting plate, on one side of the mounting plate are two winding rollers and two drive shafts rotatably mounted, the winding rollers and drive shafts are staggered, and on the other side of the mounting plate is a magnetic powder clutch, the magnetic powder clutch is connected to the winding rollers in a transmission connection.

[0007] As a further improvement to the above technical solution, the drive shaft is an air shaft.

[0008] As a further improvement to the above technical solution, a tension controller is also included, which is used to control the magnetic powder clutch.

[0009] As a further improvement to the above technical solution, the mounting plate is provided with a bracket, and the magnetic powder clutch is mounted on the bracket.

[0010] As a further improvement to the above technical solution, a bearing housing is also included. The bearing housing is fixedly mounted on the mounting plate, and the ends of the take-up roller and the drive shaft are both provided with bearings, which are fixedly connected to the bearing housing.

[0011] As a further improvement to the above technical solution, a speed-regulating motor is also included. The speed-regulating motor is fixedly mounted on the mounting plate. A first gear is provided on the drive shaft, and a second gear is provided on the output shaft of the speed-regulating motor. The same chain is fitted on the first gear and the second gear.

[0012] As a further improvement to the above technical solution, a speed control switch is also included, which is electrically connected to the speed control motor.

[0013] The beneficial effects of this invention are: by replacing the traditional brake with a magnetic powder clutch, the stability is strong, the constant tension during winding and unwinding can be maintained, and the film winding effect is better. Attached Figure Description

[0014] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments.

[0015] Figure 1 This is a schematic diagram of the preferred embodiment of the present invention;

[0016] Figure 2 for Figure 1 The diagram shows a partial structural representation.

[0017] Figure 3 This is a schematic diagram of the installation structure of this utility model;

[0018] Figure 4 for Figure 3 The diagram shows a partial structural schematic.

[0019] In the diagram: 1. Mounting plate; 11. Bracket; 12. Bearing seat; 2. Take-up roller; 3. Drive shaft; 4. Magnetic powder clutch; 5. Tension controller; 6. Speed ​​regulating motor; 7. First gear; 8. Second gear; 9. Chain; 100. Pressure bar assembly; 111. PE film. Detailed Implementation

[0020] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0021] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0023] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0024] Reference Figures 1 to 4 An automatic tension-adjusting winding and unwinding device for PE film in an ink flattening machine includes: a mounting plate 1, on one side of which two winding rollers 2 and two drive shafts 3 are rotatably mounted, the winding rollers 2 and drive shafts 3 being staggered; on the other side of the mounting plate 1, a magnetic powder clutch 4 is provided, which is drively connected to the winding rollers 2. When installed on the ink flattening machine, this device has one set at the top and one at the bottom, with a pressure bar assembly 100 in the middle. In use, the PE film 111 is staggered and adhered to the winding rollers 2 and drive shafts 3, as shown... Figure 3 As shown, the drive shaft 3 drives the PE film 111 to move. The rotational resistance of the take-up roller 2 can be adjusted by the magnetic powder clutch 4, thereby adjusting the tension during take-up. Since the magnetic powder clutch 4 can automatically adjust the tension, it can maintain constant tension during take-up and untake-up, resulting in better film take-up effect.

[0025] In a preferred embodiment, the drive shaft 3 is an air-expanded shaft. Its diameter can be adjusted to better fit the PE film 111.

[0026] In a preferred embodiment, a tension controller 5 is also included, which is used to control the magnetic powder clutch 4.

[0027] In a preferred embodiment, the mounting plate 1 is provided with a bracket 11, and the magnetic powder clutch 4 is disposed on the bracket 11.

[0028] In a preferred embodiment, a bearing housing 12 is also included. The bearing housing 12 is fixedly mounted on the mounting plate 1. Bearings are provided at the ends of both the take-up roller 2 and the drive shaft 3, and the bearings are fixedly connected to the bearing housing 12. This ensures stable rotation of the take-up roller 2 and the drive shaft 3.

[0029] As a preferred embodiment, it also includes a speed-regulating motor 6, which is fixedly mounted on the mounting plate 1. A first gear 7 is provided on the drive shaft 3, and a second gear 8 is provided on the output shaft of the speed-regulating motor 6. The same chain 9 is fitted on the first gear 7 and the second gear 8.

[0030] In a preferred embodiment, a speed control switch is also included, which is electrically connected to the speed control motor 6 and is used to adjust the speed of the speed control motor 6.

[0031] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the inventive concept of this utility model and the contents of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. An automatic tension adjusting unwinding and winding device for PE film of an ink platen press, characterized in that, The utility model relates to a kind of automatic tensioning and adjusting winding and unwinding device of PE film of ink press machine, including: Mounting plate (1), two winding rollers (2) and two drive shafts (3) are rotatably mounted on one side of the mounting plate (1), the winding roller (2) and drive shaft (3) are staggered, the other side of the mounting plate (1) is equipped with magnetic powder clutch (4), and the magnetic powder clutch (4) is drivingly connected with the winding roller (2).

2. The automatic tensioning and adjusting winding and unwinding device of PE film of ink press machine according to claim 1, wherein: The drive shaft (3) is a gas expansion shaft.

3. The automatic tensioning and adjusting winding and unwinding device of PE film of ink press machine according to claim 2, wherein: Further comprising a tension controller (5) for controlling the magnetic powder clutch (4).

4. The automatic tensioning and adjusting winding and unwinding device of PE film of ink press machine according to claim 3, wherein: The mounting plate (1) is provided with a bracket (11), and the magnetic powder clutch (4) is arranged on the bracket (11).

5. The automatic tensioning and adjusting winding and unwinding device of PE film of ink press machine according to claim 1, wherein: Further comprising a bearing seat (12) fixedly installed on the mounting plate (1), the winding roller (2) and the end of the drive shaft (3) are provided with bearings, and the bearings are fixedly connected with the bearing seat (12).

6. The automatic tensioning and adjusting winding and unwinding device of PE film of ink press machine according to any one of claims 1-5, wherein: Further comprising a speed-regulating motor (6) fixedly installed on the mounting plate (1), the drive shaft (3) is provided with a first gear (7), the output shaft of the speed-regulating motor (6) is provided with a second gear (8), and the first gear (7) and the second gear (8) are sleeved with the same chain (9).

7. The automatic tensioning and adjusting winding and unwinding device of PE film of ink press machine according to claim 6, wherein: Further comprising a speed-regulating switch electrically connected with the speed-regulating motor (6).

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