Single-color offset printing machine for multi-layer composite anti-counterfeiting mark

Abstract

The utility model relates to the technical field of single-color offset printing machines for multi-layer composite anti-counterfeiting marks, and discloses a single-color offset printing machine for multi-layer composite anti-counterfeiting marks, which comprises a machine body and a tension adjusting mechanism, the tension adjusting mechanism comprises a mounting rack, two sides of the mounting rack are rotatably connected with first roll shafts, and the first roll shafts are rotatably connected with second roll shafts. A clamping groove is formed in the middle of the mounting frame, a clamping block can be promoted to apply extrusion force to a strong spring through sliding of a sliding block in a sliding groove by means of an arranged tensioning mechanism, a connecting rod can freely move up and down within the limiting range of the mounting frame, and the interval between a tensioning roller shaft and first roller shafts on the two sides can be adjusted; therefore, regulation and control of the winding tension degree of the multi-layer composite anti-counterfeiting mark material wound on the tension roll shaft are achieved, the problem that the printing quality is reduced due to excessive stretching of the multi-layer composite anti-counterfeiting mark material is effectively prevented, and high-quality completion of printing operation is powerfully guaranteed.

Description

Technical Field

[0001] This utility model relates to the technical field of monochrome offset printing machines for multi-layer composite anti-counterfeiting labels, and particularly to a monochrome offset printing machine for multi-layer composite anti-counterfeiting labels. Background Technology

[0002] In the field of anti-counterfeiting label printing, multi-layer composite anti-counterfeiting labels have attracted widespread attention due to their higher anti-counterfeiting performance and complex structure. As one of the key pieces of equipment for printing multi-layer composite anti-counterfeiting labels, monochrome offset printing presses play an important role in anti-counterfeiting technology.

[0003] In existing monochrome offset printing presses, when collecting rewindable materials, most of them directly rewind the materials, which cannot quickly adjust the tension of the materials. This may result in the materials for printing multi-layer composite anti-counterfeiting labels being overstretched, leading to a decrease in printing quality. To address this, we propose a monochrome offset printing press for multi-layer composite anti-counterfeiting labels. Utility Model Content

[0004] The purpose of this invention is to provide a monochrome offset printing machine for multi-layer composite anti-counterfeiting labels, in order to solve the problem mentioned in the background art that the tension of the material cannot be adjusted quickly, which may result in the material being overstretched when printing multi-layer composite anti-counterfeiting labels, thus causing a decline in printing quality.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a monochrome offset printing machine for multi-layer composite anti-counterfeiting labels, comprising a machine body and a tension adjustment mechanism, wherein the tension adjustment mechanism includes a mounting frame, a first roller shaft is rotatably connected to both sides of the mounting frame, a slot is provided in the middle of the mounting frame, the mounting frame is connected to a tension roller shaft via a connecting rod, a strong spring is connected to the connecting rod via the mounting slot, and a slider is connected to the strong spring via a locking block.

[0006] As a preferred embodiment, a drying chamber is provided on the top of the machine body, and a conveyor rack is provided inside the chamber.

[0007] As a preferred embodiment, the mounting bracket is fixedly installed on both sides of the machine body, the connecting rod is slidably connected inside the mounting bracket, and the tensioning roller shaft is fixedly installed on the inner end of the connecting rod.

[0008] As a preferred embodiment, the mounting groove is formed inside both sides of the connecting rod, one end of the strong spring is fixedly installed inside the mounting groove, the locking block is fixedly installed at the other end of the strong spring, the size of the locking block is adapted to the mounting groove, the slider is fixedly installed on the outer wall of the locking block, and the outer end of the connecting rod is provided with a sliding groove near both sides, the inner end of which extends into the interior of the mounting groove, and the slider is slidably connected inside the sliding groove.

[0009] As a preferred embodiment, a winding and fixing mechanism is provided on the right side of the machine body. The winding and fixing mechanism includes a fixing frame and a limiting member. The fixing frame is fixedly installed on the right side of the machine body. A motor is fixedly installed on the front of the fixing frame. A winding roller is fixedly installed on the output shaft of the motor. The winding roller is rotatably connected inside the fixing frame.

[0010] As a preferred embodiment, threaded holes are provided at both ends of the take-up roller, and a limiting member passes through the inner end of the hole. The limiting member is sleeved on the outer wall of the take-up roller, and a protective pad is fixedly installed on the inner wall of the limiting member. A fixing bolt is connected to the internal thread of the threaded hole.

[0011] The technical effects and advantages of this utility model are as follows:

[0012] 1. Through the tensioning mechanism, the sliding of the slider in the groove causes the clamping block to apply pressure to the strong spring. The connecting rod can then move freely up and down within the limited range of the mounting frame. The gap between the tensioning roller and the first roller on both sides can be adjusted, thereby realizing the control of the winding tension of the multi-layer composite anti-counterfeiting label material wound on the tensioning roller. This effectively prevents the printing quality from declining due to excessive stretching of the multi-layer composite anti-counterfeiting label material, and strongly ensures the high-quality completion of the printing operation.

[0013] 2. The winding and fixing mechanism can be clamped at both ends of the winding roller by the limiting parts, so that one end of the multi-layer composite anti-counterfeiting label material can be firmly fixed. At the same time, the protective pad provides a comprehensive protective barrier for the material, effectively reducing the possibility of damage to the multi-layer composite anti-counterfeiting label material. During the winding process, this design ensures that the material is always in a stable state and will not fall or other accidents, thus laying a solid foundation for the smooth progress and efficient completion of the entire winding operation. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a partial structural schematic diagram of the present invention;

[0016] Figure 3 This is a three-dimensional structural diagram of the tension adjustment mechanism of this utility model;

[0017] Figure 4 This is one of the partial structural schematic diagrams of the tension adjustment mechanism of this utility model;

[0018] Figure 5 This is the second partial structural schematic diagram of the tension adjustment mechanism of this utility model;

[0019] Figure 6 For the present utility model Figure 5 Exploded view;

[0020] Figure 7 This is a three-dimensional structural diagram of the winding and fixing mechanism of this utility model;

[0021] Figure 8 This is a partial structural schematic diagram of the winding and fixing mechanism of this utility model;

[0022] Figure 9 This is an exploded view of part of the winding and fixing mechanism of this utility model.

[0023] In the diagram: 1. Machine body; 2. Drying oven; 3. Conveyor frame; 4. Tension adjustment mechanism; 401. Mounting frame; 402. First roller shaft; 403. Slot; 404. Tensioning roller shaft; 405. Connecting rod; 406. Slide groove; 407. Mounting slot; 408. Strong spring; 409. Locking block; 410. Sliding block; 5. Rewinding and fixing mechanism; 501. Fixing frame; 502. Motor; 503. Rewinding roller; 504. Threaded hole; 505. Limiting component; 506. Protective pad; 507. Fixing bolt. Detailed Implementation

[0024] 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. Example 1

[0025] Please see the appendix Figure 1 - Appendix Figure 6A monochrome offset printing machine for multi-layer composite anti-counterfeiting labels includes a machine body 1 and a tension adjustment mechanism 4. The tension adjustment mechanism 4 includes a mounting frame 401, with first rollers 402 rotatably connected to both sides of the mounting frame 401. A slot 403 is provided in the middle of the mounting frame 401. The mounting frame 401 is connected to a tension roller 404 via a connecting rod 405. A strong spring 408 is connected to the connecting rod 405 via a mounting groove 407. A slider 410 is connected to the strong spring 408 via a locking block 409. A drying chamber 2 is provided above the machine body 1, and a conveyor frame 3 is provided inside the chamber. The mounting frame 401 is fixedly installed on both sides of the machine body 1. The connecting rod 405 is slidably connected inside the mounting bracket 401. The tension roller shaft 404 is fixedly installed on the inner end of the connecting rod 405. The mounting groove 407 is opened inside both sides of the connecting rod 405. One end of the strong spring 408 is fixedly installed inside the mounting groove 407. The locking block 409 is fixedly installed on the other end of the strong spring 408. The size of the locking block 409 is adapted to the mounting groove 407. The slider 410 is fixedly installed on the outer wall of the locking block 409. The outer end of the connecting rod 405 is provided with a sliding groove 406 near both sides. Its inner end extends into the interior of the mounting groove 407. The slider 410 is slidably connected inside the sliding groove 406.

[0026] The machine body 1 is a monochrome offset printing machine, which is the existing technology and can print multi-layer composite anti-counterfeiting marks on materials. The middle end of the mounting frame 401 has a slot, and the connecting rod 405 can slide in the slot. The slot 403 is opened on both sides of the slot. When the slider 410 slides along the slide groove 406 and approaches the axis of the connecting rod 405, the locking block 409 is completely retracted into the mounting groove 407.

[0027] Specifically, the sliding of the slider 410 within the groove 406 causes the locking block 409 to compress the strong spring 408, thereby allowing the connecting rod 405 to slide freely up and down within the mounting frame 401. This changes the distance between the tension roller 404 and the first rollers 402 on both sides, thus adjusting the winding tension of the multi-layer composite anti-counterfeiting label material wound on it, preventing the multi-layer composite anti-counterfeiting label material from being overstretched and causing a reduction in printing quality. Example 2

[0028] Please see the appendix Figure 1 Appendix Figure 7 - Appendix Figure 9Furthermore, based on Embodiment 1, a winding and fixing mechanism 5 is provided on the right side of the machine body 1. The winding and fixing mechanism 5 includes a fixing frame 501 and a limiting member 505. The fixing frame 501 is fixedly installed on the right side of the machine body 1. A motor 502 is fixedly installed on the front of the fixing frame 501. A winding roller 503 is fixedly installed on the output shaft of the motor 502. The winding roller 503 is rotatably connected inside the fixing frame 501. Threaded holes 504 are provided at both ends of the winding roller 503. The inner end of the threaded hole 504 passes through the limiting member 505. The limiting member 505 is sleeved on the outer wall of the winding roller 503. A protective pad 506 is fixedly installed on the inner wall of the limiting member 505. A fixing bolt 507 is threadedly connected inside the threaded hole 504.

[0029] The limiting component 505 is very thin, which greatly ensures that the multi-layer composite anti-counterfeiting label material will not be deformed while maintaining stable clamping. At the same time, the clamping by the limiting components 505 on both sides can ensure that the multi-layer composite anti-counterfeiting label material is neatly wound up later and will not be deviated.

[0030] Specifically, the limiting component 505 can clamp the two ends of the winding roller 503 to fix one end of the multi-layer composite anti-counterfeiting label material, and the protective pad 506 can protect it to prevent the multi-layer composite anti-counterfeiting label material from being damaged, and at the same time it can be stably prevented from falling off during winding.

[0031] Working principle of this utility model: This utility model is a monochrome offset printing machine for multi-layer composite anti-counterfeiting labels. After the material is printed on the machine body 1, the multi-layer composite anti-counterfeiting label is attached to the material. After drying in the drying box 2, the blocky material is directly collected by the conveyor frame 3. The material that can be wound is alternately wound around the first roller shaft 402 and the tension roller shaft 404, with the initial end wound around the take-up roller 503. The limiting member 505 is fitted on both ends of the take-up roller 503 to press the material down. Then the fixing bolt 507 is tightened. Inside the threaded hole 504, the material is fixed. Then, the slider 410 is moved so that it slides along the groove 406 until the locking block 409 is fully inserted into the mounting groove 407. The tension roller 404 is slid up and down along the mounting bracket 401 to a suitable position so that the tension of the material is appropriate. Then, the slider 410 is released. Under the action of the strong spring 408, the locking block 409 pops out from the mounting groove 407 and locks in the locking groove 403. Finally, the motor 502 is turned on to complete the winding of the material.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A monochrome offset printing machine for multi-layer composite anti-counterfeiting labels, comprising a machine body (1) and a tension adjustment mechanism (4), characterized in that: The tension adjustment mechanism (4) includes a mounting frame (401), on both sides of the mounting frame (401) are rotatably connected to a first roller shaft (402), and a slot (403) is provided in the middle of the mounting frame (401). The mounting frame (401) is connected to a tension roller shaft (404) through a connecting rod (405). The connecting rod (405) is connected to a strong spring (408) through a mounting groove (407). The strong spring (408) is connected to a slider (410) through a locking block (409).

2. The monochrome offset printing machine for multi-layer composite anti-counterfeiting labels according to claim 1, characterized in that: A drying box (2) is provided on the top of the machine body (1), and a conveyor rack (3) is provided inside it.

3. A monochrome offset printing machine for multi-layer composite anti-counterfeiting labels according to claim 2, characterized in that: The mounting bracket (401) is fixedly installed on both sides of the machine body (1), the connecting rod (405) is slidably connected inside the mounting bracket (401), and the tensioning roller shaft (404) is fixedly installed on the inner end of the connecting rod (405).

4. A monochrome offset printing machine for multi-layer composite anti-counterfeiting labels according to claim 3, characterized in that: The mounting groove (407) is opened inside both sides of the connecting rod (405). One end of the strong spring (408) is fixedly installed inside the mounting groove (407). The locking block (409) is fixedly installed at the other end of the strong spring (408). The size of the locking block (409) is adapted to the mounting groove (407). The slider (410) is fixedly installed on the outer wall of the locking block (409). The outer end of the connecting rod (405) is provided with a sliding groove (406) near both sides, and its inner end extends into the interior of the mounting groove (407). The slider (410) is slidably connected inside the sliding groove (406).

5. A monochrome offset printing machine for multi-layer composite anti-counterfeiting labels according to claim 2, characterized in that: A winding and fixing mechanism (5) is provided on the right side of the machine body (1). The winding and fixing mechanism (5) includes a fixing frame (501) and a limiting member (505). The fixing frame (501) is fixedly installed on the right side of the machine body (1). A motor (502) is fixedly installed on the front of the fixing frame (501). A winding roller (503) is fixedly installed on the output shaft of the motor (502). The winding roller (503) is rotatably connected inside the fixing frame (501).

6. A monochrome offset printing machine for multi-layer composite anti-counterfeiting labels according to claim 5, characterized in that: Both ends of the take-up roller (503) are provided with threaded holes (504), and the inner end of the hole passes through a limiting member (505). The limiting member (505) is sleeved on the outer wall of the take-up roller (503). A protective pad (506) is fixedly installed on the inner wall of the limiting member (505). A fixing bolt (507) is threaded into the threaded hole (504).

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