A multi-color overprinting precision positioning rotary printing machine

Abstract

This utility model provides a multi-color overprinting precision positioning roller printing machine, belonging to the field of printing technology. It includes a printing machine body, an operating platform, and support legs fixedly installed at the bottom of the operating platform. The positioning mechanism includes an arc-shaped fixing block fixedly installed on the outer surface of the support legs, a sleeve movably connected to the inner surface of the arc-shaped fixing block, a roller sleeved on the outer surface of the sleeve, an inner support assembly disposed on the outer surface of the support legs for fixing the roller, and a drive assembly disposed on one side of the inner support assembly for rotating and retracting the printed paper sheet. This utility model, through the mutual cooperation of the various components of the positioning mechanism, ensures accurate positioning each time material is loaded. Furthermore, the cylinder drive achieves a uniform and stable clamping force distribution, avoiding roller displacement or tilting caused by inaccurate manual adjustment. It also ensures consistent tension and stable rotation speed of the material during winding, improving printing accuracy and winding quality.

Description

Technical Field

[0001] This utility model belongs to the field of printing technology, specifically relating to a roller printing machine for precise positioning of multi-color overprinting. Background Technology

[0002] Rotary roller printing machines are widely used in textile printing. They utilize multiple engraved rollers to transfer different colors of ink, enabling continuous multi-color printing. However, in actual production, factors such as mechanical transmission errors, roller wear, and fabric tension variations can easily lead to registration deviations between colors, affecting printing accuracy and product quality. Therefore, improving the precise positioning capability of multi-color printing has become one of the key directions for technological improvement of rotary roller printing machines.

[0003] In existing technologies, traditional roller winding operations mostly rely on manual intervention. When workers manually load the material to be printed onto the roller surface, it is difficult to achieve completely accurate positioning every time, and the material tension is also difficult to maintain constant. In addition, traditional devices lack fine adjustment capabilities. If the material distribution is uneven or there are local pressure differences during the loading process, it may cause uneven force on both ends of the roller, resulting in slight tilting or displacement, which affects the printing accuracy and winding quality. Utility Model Content

[0004] The purpose of this invention is to provide a roller printing machine for precise positioning of multi-color overprinting, aiming to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A multi-color overprinting, precisely positioned rotary printing machine, including

[0007] The main body of the printing machine includes an operating platform and support legs fixedly installed at the bottom of the operating platform;

[0008] The positioning mechanism includes an arc-shaped fixing block fixedly installed on the outer surface of the support leg, a sleeve movably connected to the inner surface of the arc-shaped fixing block, a roller sleeved on the outer surface of the sleeve, an inner support assembly disposed on the outer surface of the support leg and used to fix the roller, and a drive assembly disposed on one side of the inner support assembly for rotating and retracting the printed paper sheet.

[0009] The inner support assembly includes a fixed plate fixedly installed on the outer surface of the outrigger, a cylinder adapted to be installed on the outer surface of the fixed plate, a fixed sleeve fixedly installed on the output end of the cylinder, a fixed post sleeved on the outer surface of the output end of the fixed sleeve, and a clamping member fixedly installed on the outer surface of the fixed post.

[0010] As a preferred embodiment of the present invention, the clamping member includes a first guide rod fixedly and movably connected to the inner surface of the fixed sleeve, a second guide rod rotatably connected to the outer surface of the fixed block, and an arc-shaped clamping plate rotatably connected to the first guide rod and the second guide rod.

[0011] In a preferred embodiment of this utility model, a bearing sleeve for rotation is installed at the connection between the inner surface of the arc-shaped fixing block and the outer surface of the ferrule, and the outer surface of the ferrule is in contact with the inner surface of the roller.

[0012] In a preferred embodiment of this utility model, the cylinder is rotatably connected to the fixed column, and a bearing sleeve for cooperative rotation is installed at the connection between the cylinder and the fixed column.

[0013] As a preferred embodiment of this utility model, a bearing sleeve for rotation is installed at the connection between the first guide rod and the fixed sleeve, and a bearing sleeve for rotation is installed at the connection between the second guide rod and the fixed block.

[0014] As a preferred embodiment of this utility model, a bearing sleeve for rotation is installed at the connection between the first guide rod and the arc-shaped clamp, and a bearing sleeve for rotation is installed at the connection between the second guide rod and the arc-shaped clamp.

[0015] As a preferred embodiment of this utility model, the drive assembly includes a motor adapted to be installed on the outer surface of the fixed plate, a connecting rod fixedly installed on the output end of the motor via a coupling, a first gear fixedly installed on the other end of the connecting rod, and a second gear meshing with the surface of the first gear, wherein the second gear is fixedly connected to the fixed column.

[0016] Compared with the prior art, the beneficial effects of this utility model are: through the cooperation of the various components of the positioning mechanism, the position can be accurately positioned each time the material is loaded, and the uniform and stable clamping force distribution can be achieved by the cylinder drive, avoiding roller displacement or tilting caused by inaccurate manual adjustment. At the same time, it ensures the consistency of tension and smooth rotation speed of the material during the winding process, thereby improving the printing accuracy and winding quality. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the roller disassembly of this utility model;

[0020] Figure 3 This is a schematic diagram of the internal support component of this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the drive component of this utility model.

[0022] In the diagram: 100, main body of the printing machine; 101, operating platform; 102, support leg; 200, positioning mechanism; 201, arc-shaped fixing block; 202, ferrule; 203, roller; 204, internal support assembly; 204a, fixing plate; 204b, cylinder; 204c, fixing sleeve; 204d, fixing column; 204e, fixing block; 204f, clamping component; 204f-1, first guide rod; 204f-2, second guide rod; 204f-3, arc-shaped clamping plate; 205, drive assembly; 205a, motor; 205b, connecting rod; 205c, first gear; 205d, second gear. Detailed Implementation

[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0025] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0026] Example

[0027] Reference Figures 1-4 This is an embodiment of the present invention, which provides a multi-color overprinting precision positioning roller printing machine, comprising:

[0028] The main body 100 of the printing machine includes an operating platform 101 and a support leg 102 fixedly installed at the bottom of the operating platform 101;

[0029] The positioning mechanism 200 includes an arc-shaped fixing block 201 fixedly installed on the outer surface of the support leg 102, a sleeve 202 movably connected to the inner surface of the arc-shaped fixing block 201, a roller 203 sleeved on the outer surface of the sleeve 202, an inner support assembly 204 disposed on the outer surface of the support leg 102 and used to fix the roller 203, and a drive assembly 205 disposed on one side of the inner support assembly 204 for rotating and gathering the printed paper sheet;

[0030] The inner support assembly 204 includes a fixed plate 204a fixedly installed on the outer surface of the support leg 102, a cylinder 204b adapted to be installed on the outer surface of the fixed plate 204a, a fixed sleeve 204c fixedly installed on the output end of the cylinder 204b, a fixed post 204d sleeved on the outer surface of the output end of the fixed sleeve 204c, and a clamping member 204f fixedly installed on the outer surface of the fixed post 204d.

[0031] Specifically, the clamping member 204f includes a first guide rod 204f-1 fixedly and movably connected to the inner surface of the fixed sleeve 204c, a second guide rod 204f-2 rotatably connected to the outer surface of the fixed block 204e, and an arc-shaped clamping plate 204f-3 rotatably connected to the first guide rod 204f-1 and the second guide rod 204f-2.

[0032] When the output end of cylinder 204b extends, it drives the fixed sleeve 204c to move. As the fixed sleeve 204c moves, the first guide rod 204f-1 moves accordingly. During the movement, the first guide rod 204f-1 drives the arc-shaped clamping plate 204f-3 to make corresponding displacements. At the same time, the movement of the arc-shaped clamping plate 204f-3 further prompts the second guide rod 204f-2 to adjust its position, thereby effectively fixing the inner diameter of the roller 203. This ensures the stability of the roller 203 during the material winding process, prevents the material from being unable to be wound in parallel due to the movement of the roller 203, and ensures the neatness and parallelism of the wound material.

[0033] Furthermore, a bearing sleeve for rotation is installed at the connection between the inner surface of the arc-shaped fixing block 201 and the outer surface of the ferrule 202, and the outer surface of the ferrule 202 is in contact with the inner surface of the roller 203.

[0034] Furthermore, cylinder 204b is rotatably connected to fixed column 204d, and a bearing sleeve for rotation is installed at the connection between cylinder 204b and fixed column 204d.

[0035] Furthermore, a bearing sleeve for rotation is installed at the connection between the first guide rod 204f-1 and the fixed sleeve 204c, and a bearing sleeve for rotation is installed at the connection between the second guide rod 204f-2 and the fixed block 204e.

[0036] Preferably, a bearing sleeve for rotation is installed at the connection between the first guide rod 204f-1 and the arc-shaped clamping plate 204f-3, and a bearing sleeve for rotation is installed at the connection between the second guide rod 204f-2 and the arc-shaped clamping plate 204f-3.

[0037] It should be noted that the drive assembly 205 includes a motor 205a adapted to be mounted on the outer surface of the fixed plate 204a, a connecting rod 205b fixedly mounted on the output end of the motor 205a via a coupling, a first gear 205c fixedly mounted on the other end of the connecting rod 205b, and a second gear 205d meshing with the surface of the first gear 205c. The second gear 205d is fixedly connected to the fixed column 204d.

[0038] In this system, motor 205a drives connecting rod 205b via coupling, which in turn drives first gear 205c to rotate. First gear 205c meshes with second gear 205d and transmits power, ultimately causing fixed column 204d to rotate synchronously, thus achieving a smooth collection operation of the printed paper sheets.

[0039] When using a multi-color, precisely positioned roller printing machine, the operation of the inner support assembly 204 is crucial for ensuring the stability of the roller 203 and the printing quality. First, the roller 203, which needs to be wound up, is placed on the outer surface of the arc-shaped clamping plate 204f-3. Then, the retaining sleeve 202 is placed on the other end of the roller 203. After placement, the retaining sleeve 202 is inserted into the arc-shaped fixing block. The cylinder 204b is activated, its output end extending outwards, pushing the fixing sleeve 204c along a predetermined trajectory. As the fixing sleeve 204c moves, the first guide rod 204f-1 is driven towards the roller 203, thereby driving the arc-shaped clamping plate 204f-3 connected to it to gradually approach the roller 203. Simultaneously, due to the movement of the arc-shaped clamping plate 204f-3, the second guide rod 204f-2 also adjusts its position accordingly. The two components work together to achieve precise clamping of the inner diameter of the roller 203. The motor 205a is started, and the motor 205a drives the connecting rod 205b to rotate through the coupling, which in turn drives the first gear 205c to rotate. The first gear 205c meshes with the second gear 205d and transmits power to the fixed column 204d, thereby achieving synchronous rotation of the roller 203 and completing the smooth collection of the printed paper. After the printing operation is completed, in order to release the roller 203, the cylinder 204b needs to be controlled in the reverse direction to retract the output end of the cylinder 204b. This will cause the fixed sleeve 204c to move in the reverse direction, which in turn causes the first guide rod 204f-1 to drive the arc-shaped clamping plate 204f-3 to release from the roller 203. As the arc-shaped clamping plate 204f-3 is released, the second guide rod 204f-2 will also return to the initial position, completing the entire release process.

[0040] In summary, the positioning mechanism 200 ensures accurate positioning during each material loading process through the cooperation of its various components. Furthermore, the cylinder 204b drives a uniform and stable clamping force distribution, preventing displacement or tilting of the roller 203 caused by inaccurate manual adjustment. It also ensures consistent tension and stable rotation speed of the material during the winding process, thereby improving printing accuracy and winding quality.

[0041] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0042] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0043] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0044] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A multi-color overprinting precision positioning rotary printing machine, characterized in that: include, The main body (100) of the printing machine includes an operating platform (101) and support legs (102) fixedly installed at the bottom of the operating platform (101); The positioning mechanism (200) includes an arc-shaped fixing block (201) fixedly installed on the outer surface of the support leg (102), a sleeve (202) movably connected to the inner surface of the arc-shaped fixing block (201), a roller (203) sleeved on the outer surface of the sleeve (202), an inner support assembly (204) disposed on the outer surface of the support leg (102) and used to fix the roller (203), and a drive assembly (205) disposed on one side of the inner support assembly (204) for rotating and gathering the printed paper sheet; The inner support assembly (204) includes a fixing plate (204a) fixedly installed on the outer surface of the support leg (102), a cylinder (204b) adapted to be installed on the outer surface of the fixing plate (204a), a fixing sleeve (204c) fixedly installed on the output end of the cylinder (204b), a fixing post (204d) sleeved on the outer surface of the output end of the fixing sleeve (204c), and a clamping member (204f) fixedly installed on the outer surface of the fixing post (204d).

2. The multi-color overprinting precision positioning roller printing machine according to claim 1, characterized in that: The clamping member (204f) includes a first guide rod (204f-1) fixedly and movably connected to the inner surface of the fixed sleeve (204c), a second guide rod (204f-2) rotatably connected to the outer surface of the fixed block (204e), and an arc-shaped clamping plate (204f-3) rotatably connected to the first guide rod (204f-1) and the second guide rod (204f-2).

3. The multi-color overprinting precision positioning roller printing machine according to claim 2, characterized in that: A bearing sleeve for rotation is installed at the connection between the inner surface of the arc-shaped fixing block (201) and the outer surface of the sleeve (202), and the outer surface of the sleeve (202) is in contact with the inner surface of the roller (203).

4. A multi-color overprinting precision positioning roller printing machine according to claim 3, characterized in that: The cylinder (204b) is rotatably connected to the fixed column (204d), and a bearing sleeve for rotation is installed at the connection between the cylinder (204b) and the fixed column (204d).

5. A multi-color overprinting precision positioning roller printing machine according to claim 4, characterized in that: A bearing sleeve for rotation is installed at the connection between the first guide rod (204f-1) and the fixed sleeve (204c), and a bearing sleeve for rotation is installed at the connection between the second guide rod (204f-2) and the fixed block (204e).

6. A multi-color overprinting precision positioning roller printing machine according to claim 5, characterized in that: A bearing sleeve for rotation is installed at the connection between the first guide rod (204f-1) and the arc-shaped clamp (204f-3), and a bearing sleeve for rotation is installed at the connection between the second guide rod (204f-2) and the arc-shaped clamp (204f-3).

7. A multi-color overprinting precision positioning rotary printing machine according to claim 6, characterized in that: The drive assembly (205) includes a motor (205a) adapted to be installed on the outer surface of the fixed plate (204a), a connecting rod (205b) fixedly installed on the output end of the motor (205a) via a coupling, a first gear (205c) fixedly installed on the other end of the connecting rod (205b), and a second gear (205d) meshing with the surface of the first gear (205c). The second gear (205d) is fixedly connected to the fixed column (204d).

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