Tension adjusting device of newspaper printing machine

Abstract

The utility model discloses a tension adjusting device of a newspaper printing machine. The tension adjusting device comprises a base, two vertical plates are correspondingly arranged at the top of the base, two guide assemblies are arranged between the two vertical plates, elastic assemblies are arranged above the guide assemblies, and an adjusting assembly is arranged between the two guide assemblies. The adjusting assembly comprises fixing plates, the two sets of fixing plates are fixed to the inner sides of the two vertical plates respectively, a threaded rod is rotationally arranged between each set of fixing plates, the outer wall of each threaded rod is in threaded connection with a threaded sleeve, and an adjusting roller is rotationally arranged between the two threaded sleeves. According to the tension adjusting device, the tension of paper can be improved through the elastic assembly, due to the fact that different pieces of paper have different tensile capacities, the two gear rings can be driven to rotate by rotating the rotating shaft, synchronous rotation of the two screw rods is achieved through meshing of the gear rings and gears, the height of the adjusting roller is adjusted, the elastic roller can swing, and therefore the paper can be adjusted more stably. When the pointer points to a specific scale line, the tightness degree of the paper in the conveying process can be reasonably controlled.

Description

Technical Field

[0001] This utility model relates to the technical field of paper printing, specifically a tension adjustment device for a newspaper printing machine. Background Technology

[0002] A printing press is a machine used to print text and images. Modern printing presses generally consist of mechanisms for plate mounting, inking, impression, and paper feeding (including folding). Its working principle is as follows: first, the text and images to be printed are made into a printing plate, which is then mounted on the printing press. The printing press then applies ink to the areas of the printing plate containing the text and images, directly or indirectly transferring the ink onto paper or other substrates (such as textiles, metal plates, plastics, leather, wood, glass, and ceramics), thus reproducing a printed product identical to the printing plate. To adjust the paper tension, a tension regulating device is generally installed between the paper rollers and the printing press. Existing tension regulating devices use an elastic mechanism between two sets of guide rollers, but this single elastic mechanism is difficult to accurately control the paper tension, which can easily lead to the newspaper being too tight during printing. Overly tight paper is prone to breakage, thus affecting the overall printing quality and efficiency. Therefore, we provide a tension regulating device for a newspaper printing press to solve the above problems. Utility Model Content

[0003] To solve the above problems, that is, to address the issues raised in the background art, this utility model proposes a tension adjustment device for a newspaper printing machine, including a base, two vertical plates correspondingly arranged on the top of the base, two sets of guide components arranged between the two vertical plates, an elastic component arranged above the guide components, and an adjustment component arranged between the two guide components.

[0004] The adjustment assembly includes a fixing plate, two sets of fixing plates are respectively fixed to the inner side of two vertical plates, and a screw is rotatably arranged between each set of fixing plates. The outer wall of the screw is threadedly connected to a threaded sleeve, and an adjustment roller is rotatably arranged between the two threaded sleeves.

[0005] Preferably, the adjustment assembly further includes a rotating shaft that rotates through the interior of the two vertical plates, and both sides of the outer wall of the rotating shaft are fixedly mounted on a gear ring, the tooth sides of the gear ring being engaged with gears, and the gears being fixed to the top of the corresponding screw.

[0006] Preferably, the guide assembly includes a bottom roller, two bottom rollers are correspondingly arranged and rotatably arranged between two vertical plates, a top roller is provided above the bottom roller, the top roller is rotatably arranged between the two vertical plates, and limit rings are fixedly provided on both sides of the bottom roller.

[0007] Preferably, the elastic component includes a rocker plate, two sets of rocker plates are rotatably disposed inside two vertical plates, and an elastic roller is rotatably disposed between each set of rocker plates. The interior of each vertical plate is provided with an arc-shaped groove corresponding to the rocker plate. A limit rod is fixedly disposed inside the arc-shaped groove. A spring and a slide cylinder are sleeved on the outer wall of the limit rod. The slide cylinder is rotatably disposed outside the rocker plate.

[0008] Preferably, the adjustment component further includes a pointer, which is fixedly installed on the outer wall of the slide, and the interior of the vertical plate is machined with scale lines corresponding to the movement trajectory of the pointer.

[0009] The beneficial technical effects of this utility model are as follows: the tension adjustment device can increase the tension of the paper through the elastic component. However, since different papers have different tensile strengths, the two gear rings can be driven to rotate by rotating the shaft. The meshing of the gear rings and gears can realize the synchronous rotation of the two screws, thereby adjusting the height of the adjusting roller and allowing the elastic roller to swing. When the pointer points to a specific scale line, the tightness of the paper during the conveying process can be reasonably controlled, which facilitates the paper entering the printing press for printing. Attached Figure Description

[0010] Figure 1 A schematic diagram of the internal structure of this utility model is shown.

[0011] Figure 2 A side view of the present invention is shown.

[0012] Figure 3 A side view of the structure of this utility model is shown.

[0013] Figure 4 A schematic diagram of the front view structure of this utility model is shown.

[0014] Attached figures: 1. Base; 2. Vertical plate; 21. Arc groove; 3. Guide assembly; 31. Bottom roller; 311. Limiting ring; 32. Top roller; 4. Elastic assembly; 41. Rocking plate; 42. Elastic roller; 43. Limiting rod; 44. Spring; 45. Slide cylinder; 5. Adjusting assembly; 51. Fixed plate; 52. Screw; 53. Threaded sleeve; 54. Adjusting roller; 55. Rotating shaft; 56. Gear ring; 57. Gear; 58. Pointer; 59. Scale line. Detailed Implementation

[0015] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0016] This utility model proposes a tension adjustment device for a newspaper printing machine, including a base 1, two vertical plates 2 are correspondingly arranged on the top of the base 1, two sets of guide components 3 are arranged between the two vertical plates 2, an elastic component 4 is arranged above the guide components 3, and an adjustment component 5 is arranged between the two guide components 3.

[0017] The adjusting component 5 includes a fixing plate 51. Two sets of fixing plates 51 are fixed to the inner sides of two vertical plates 2 respectively. A screw 52 is rotatably arranged between each set of fixing plates 51. A threaded sleeve 53 is threadedly connected to the outer wall of the screw 52. An adjusting roller 54 is rotatably arranged between the two threaded sleeves 53. By controlling the height of the adjusting roller 54, the elasticity of the elastic component 4 can be controlled during the paper feeding process, thereby controlling the tension of the paper.

[0018] Specifically, the adjustment assembly 5 also includes a rotating shaft 55, which rotates through the interior of the two vertical plates 2. Both sides of the outer wall of the rotating shaft 55 are fixedly mounted on a gear ring 56. The toothed sides of the gear ring 56 are meshed with gears 57, which are fixed to the top of the corresponding screws 52. This design enables the synchronous rotation of the two screws 52, thereby ensuring that the adjustment roller 54 can always move horizontally.

[0019] Specifically, the guide assembly 3 includes a bottom roller 31, with two bottom rollers 31 arranged correspondingly and rotatably positioned between two vertical plates 2. A top roller 32 is provided above the bottom rollers 31 and is rotatably positioned between the two vertical plates 2. Limiting rings 311 are fixedly provided on both sides of the bottom rollers 31. The purpose of this design is to control the input and output positions of the paper.

[0020] Specifically, the elastic component 4 includes a rocker plate 41, with two sets of rocker plates 41 rotatably disposed inside the two vertical plates 2. An elastic roller 42 is rotatably disposed between each set of rocker plates 41. An arc-shaped groove 21 corresponding to the rocker plate 41 is opened inside the vertical plate 2. A limit rod 43 is fixedly disposed inside the arc-shaped groove 21. A spring 44 and a slide cylinder 45 are sleeved on the outer wall of the limit rod 43. The slide cylinder 45 is rotatably disposed outside the rocker plate 41. The elastic component 4 increases the tension of the paper by utilizing the elastic deformation of the spring 44.

[0021] Specifically, the adjustment component 5 also includes a pointer 58, which is fixedly installed on the outer wall of the slide cylinder 45, and the interior of the vertical plate 2 is machined with scale lines 59 corresponding to the movement trajectory of the pointer 58.

[0022] Working principle: When using this tension adjustment device, it can be placed between the paper roll (the paper roll is placed on the automatic unwinder) and the printing press. Then, one end of the paper is placed between the bottom roller 31 and the top roller 32 on the input side, and passes around the elastic roller 42 and the adjusting roller 54. Then, it passes around the elastic roller 42 on the other side and is pulled out between the bottom roller 31 and the top roller 32 on the output side. Then, it is connected to the printing press. At this time, the handwheel drives the rotating shaft 55 to rotate. Through the meshing of the gear ring 56 and the gear 57, the two screws 52 rotate synchronously. Under the drive of the threaded sleeve 53, the adjusting roller 54 moves up and down, thereby pulling the paper to adjust the tension. At this time, the paper pulls the elastic roller 42 to make the pointer 58 rotate. When the pointer 58 reaches the specific position of the scale line 59, the rotating shaft 55 can be stopped. This tension adjustment method can control the tension of the paper during the conveying process according to the tensile strength of the paper itself, which ensures the tension of the paper and avoids the paper breaking during the conveying process.

[0023] Although the present invention has been described with reference to preferred embodiments, various modifications can be made to it and components can be replaced with equivalents without departing from the scope of the present invention. In particular, the technical features mentioned in the various embodiments can be combined in any manner as long as there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0024] In the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element 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. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, such that a process, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to those processes, articles, or apparatus / devices.

[0027] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A tension adjustment device for a newspaper printing press, characterized in that: Includes a base (1), with two vertical plates (2) correspondingly arranged on the top of the base (1), two sets of guide components (3) between the two vertical plates (2), an elastic component (4) above the guide components (3), and an adjustment component (5) between the two guide components (3). The adjustment assembly (5) includes a fixing plate (51), two sets of fixing plates (51) are fixed to the inner side of two vertical plates (2) respectively, and a screw (52) is rotatably arranged between each set of fixing plates (51). A threaded sleeve (53) is threadedly connected to the outer wall of the screw (52), and an adjustment roller (54) is rotatably arranged between the two threaded sleeves (53).

2. The tension adjustment device for a newspaper printing machine according to claim 1, characterized in that: The adjustment component (5) also includes a rotating shaft (55), which rotates through the interior of the two vertical plates (2), and both sides of the outer wall of the rotating shaft (55) are fixedly mounted on a gear ring (56). The gear ring (56) has a gear (57) meshing on its tooth side, and the gear (57) is fixed to the top of the corresponding screw (52).

3. The tension adjustment device for a newspaper printing machine according to claim 1, characterized in that: The guide assembly (3) includes a bottom roller (31), two bottom rollers (31) are arranged correspondingly and rotatably between two vertical plates (2), a top roller (32) is provided above the bottom roller (31), the top roller (32) is rotatably arranged between two vertical plates (2), and limit rings (311) are fixedly provided on both sides of the bottom roller (31).

4. The tension adjustment device for a newspaper printing machine according to claim 1, characterized in that: The elastic component (4) includes a rocker plate (41), and two sets of rocker plates (41) are rotatably disposed inside two vertical plates (2). An elastic roller (42) is rotatably disposed between each set of rocker plates (41). An arc-shaped groove (21) corresponding to the rocker plate (41) is opened inside the vertical plate (2). A limit rod (43) is fixedly disposed inside the arc-shaped groove (21). A spring (44) and a slide cylinder (45) are sleeved on the outer wall of the limit rod (43). The slide cylinder (45) is rotatably disposed on the outside of the rocker plate (41).

5. The tension adjustment device for a newspaper printing machine according to claim 1, characterized in that: The adjustment component (5) also includes a pointer (58), which is fixedly installed on the outer wall of the slide (45), and the interior of the vertical plate (2) is machined with scale lines (59) corresponding to the movement trajectory of the pointer (58).

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