An automatic in-net paste uniform device for rotary screen printing machine
By designing a stirring device and adjustment mechanism in the rotary screen printing machine, uniform stirring of the dye is achieved, printing efficiency is improved, and the problem of uneven dye distribution in existing devices is solved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LINSHU COUNTY CAIYUAN PAPER PACKAGING CO LTD
- Filing Date
- 2025-09-17
- Publication Date
- 2026-07-24
AI Technical Summary
The existing rotary screen printing machine's homogenizing device lacks a stirring structure, resulting in uneven dye distribution and affecting printing efficiency.
An automatic homogenizing device including a stirring device and an adjustment mechanism was designed. The stirring frame is driven to rotate by an electric push rod and a drive motor to achieve full mixing of dyes and adapt to cylindrical screens of different lengths.
It achieves uniformity of dye, improves printing efficiency, and solves the problem of uneven dye distribution in existing equipment.
Smart Images
Figure CN224545538U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rotary screen printing machine technology, specifically to an automatic uniform paste device inside the screen of a rotary screen printing machine. Background Technology
[0002] Rotary screen printing machines, as core equipment in the textile printing field, occupy an important position in the production of medical textiles due to their high efficiency and stability. Pigment paste is scraped from the cylinder according to the pre-designed pattern and printed onto the fabric; different patterns and colors are combined on the fabric to form the complete design. The mechanical components of the printing section can be divided into the printing rubber guide belt, the rotary screen drive device, the rotary screen and printing squeegee holder, the pattern matching device, the rubber guide belt washing and squeegee device, and the printed fabric pasting and paste supply pump system.
[0003] An automatic ink leveling device is required in the operation of rotary screen printing machines. Chinese utility model patent CN218804636U discloses such a device, relating to the field of rotary screen printing technology. It includes an injection pipe and a main scraper fixedly connected to the outer wall of the injection pipe along its axis. It also includes auxiliary scrapers, which are arranged at 180° angles on the same plane. A fixing lug is fixedly connected to the middle of the side of the two auxiliary scrapers that are close to each other. A fixing column is fixedly sleeved in the fixing lug along the vertical direction, and a gear disk is fixedly connected to the top surface of the fixing column. The fixing lug fits into an opening slot on a T-shaped frame, and the fixing column slides on the T-shaped frame. A linkage plate is positioned between the two gear disks, and racks are provided on both sides of the linkage plate, with the racks meshing with the two gear disks respectively. This utility model effectively solves the problem of uneven color streaks at the color transition points caused by different ink flow rates, improving printing quality. Furthermore, the ink leveling device is easy to adjust and highly practical.
[0004] However, this utility model does not have a structure for stirring the dye during use. It can not achieve the effect of stirring the dye by simply squeezing the pipe. And the method of controlling the flow rate to make the dye uniform will directly affect the printing efficiency and cannot meet the production needs. Therefore, an automatic uniforming device in the screen of a rotary screen printing machine is proposed to solve the above-mentioned problems. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides an automatic in-mesh homogenizing device for rotary screen printing machines. This device has the advantage of conveniently and directly stirring the dye, solving the problem that existing homogenizing devices do not have a structure for stirring the dye. Simply squeezing the pipes cannot achieve the effect of homogenizing the dye, and using the method of controlling the flow rate to make the dye uniform will directly affect the printing efficiency and fail to meet production needs.
[0006] To achieve the above objectives, the present invention provides the following technical solution: an automatic uniform paste device for a rotary screen printing machine, comprising a mounting box and a stirring device disposed on the top of the mounting box, wherein the mounting box is provided with an adjustment mechanism capable of adjusting the stirring device;
[0007] The adjustment mechanism includes a rotating plate rotatably connected inside the mounting box. A first moving plate and a second moving plate are slidably connected inside the mounting box. A connecting rod is rotatably connected between the rotating plate and the first and second moving plates. An electric push rod is fixedly connected to the top of the mounting box. A mounting block is fixedly connected to the output end of the electric push rod.
[0008] Furthermore, a connecting block is fixedly connected between the mounting block and the second movable plate, and the mounting box has an movable groove on its upper surface that is adapted to the connecting block.
[0009] Furthermore, the end of the connecting rod away from the rotating plate is located at the center of the first moving plate, and a limiting block extending into the installation box is fixedly connected to the top of the first moving plate.
[0010] Furthermore, the stirring device includes a drive box located at the bottom of the mounting box, a drive motor is fixedly connected inside the drive box, and a stirring frame extending to the outside of the drive box is fixedly connected to the output shaft of the drive motor.
[0011] Furthermore, a positioning block is fixedly connected between the first movable plate and the drive box, and a positioning groove adapted to the positioning block is provided on the lower surface of the mounting box.
[0012] Furthermore, there are two stirring devices, which are symmetrically distributed at the bottom of the mounting box.
[0013] Furthermore, a fixing seat is fixedly connected to the top of the mounting box, and a hinge plate is hinged to the top of the fixing seat. Both the front of the fixing seat and the hinge plate are fixedly connected to splicing blocks.
[0014] Compared with the prior art, this utility model provides an automatic slurry homogenizing device inside the screen of a rotary screen printing machine, which has the following beneficial effects:
[0015] 1. The automatic uniform mixing device inside the rotary screen printing machine is equipped with an electric push rod to drive the mounting block and the second moving plate to move. Then, by setting a rotating plate and a connecting rod, the second moving plate can drive the rotating plate to rotate during its movement, thereby facilitating the displacement of the first moving plate at the same time. This achieves the effect of adjusting the distance between the two mixing devices, and can be applied to rotary screens of different lengths, while ensuring sufficient mixing of the dye.
[0016] 2. The automatic dyeing device inside the rotary screen printing machine is equipped with a drive motor that rotates the stirring frame, facilitating thorough mixing of the dye inside the rotary screen cylinder. This improves dye uniformity without affecting the flow rate, thereby further enhancing the printing effect. It solves the problem that existing dyeing devices lack a structure for mixing the dye and rely solely on squeezing the pipes, which fails to achieve the desired uniformity. Furthermore, controlling the flow rate to achieve dye uniformity directly impacts printing efficiency and fails to meet production requirements. Attached Figure Description
[0017] Figure 1 This is a cross-sectional view of the structure of this utility model;
[0018] Figure 2 This is a top view of the rotating plate of this utility model;
[0019] Figure 3 This is a three-dimensional view of the installation box of this utility model.
[0020] In the diagram: 1. Mounting box; 2. Stirring device; 21. Drive box; 22. Drive motor; 23. Stirring frame; 3. Rotating plate; 4. First moving plate; 5. Second moving plate; 6. Connecting rod; 7. Electric push rod; 8. Mounting block; 9. Fixed base; 10. Hinge plate; 11. Splicing block. Detailed Implementation
[0021] 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.
[0022] Please see Figure 1 and Figure 2 An automatic uniform paste device for a rotary screen printing machine in this embodiment includes a mounting box 1 and a stirring device 2 disposed on the top of the mounting box 1. The mounting box 1 is provided with an adjustment mechanism that can adjust the stirring device 2. The adjustment mechanism includes a rotating plate 3 rotatably connected to the inside of the mounting box 1. A first moving plate 4 and a second moving plate 5 are slidably connected to the inside of the mounting box 1. A connecting rod 6 is rotatably connected between the rotating plate 3 and the first moving plate 4 and the second moving plate 5. An electric push rod 7 is fixedly connected to the top of the mounting box 1. A mounting block 8 is fixedly connected to the output end of the electric push rod 7.
[0023] Specifically, a connecting block is fixedly connected between the mounting block 8 and the second movable plate 5. The mounting box 1 has an movable groove on its upper surface that is adapted to the connecting block. The end of the connecting rod 6 away from the rotating plate 3 is located at the center of the first movable plate 4. A limiting block extending into the interior of the mounting box 1 is fixedly connected to the top of the first movable plate 4.
[0024] It should be noted that by setting the electric push rod 7 to drive the mounting block 8 and the second moving plate 5 to move, and by setting the rotating plate 3 and the connecting rod 6, the second moving plate 5 can drive the rotating plate 3 to rotate during its movement, thereby facilitating the simultaneous displacement of the first moving plate 4, and thus achieving the effect of adjusting the distance between the two stirring devices 2.
[0025] Please see Figure 1 In this embodiment, the stirring device 2 includes a drive box 21 disposed at the bottom of the mounting box 1. A drive motor 22 is fixedly connected inside the drive box 21. A stirring frame 23 extending to the outside of the drive box 21 is fixedly connected to the output shaft of the drive motor 22. A positioning block is fixedly connected between the first moving plate 4 and the drive box 21. A positioning groove adapted to the positioning block is opened on the lower surface of the mounting box 1.
[0026] Specifically, there are two stirring devices 2, which are symmetrically distributed at the bottom of the mounting box 1.
[0027] It should be noted that a main control unit is set up in the system, which establishes communication connections with the drivers of the two drive motors 22 respectively. High-precision encoders are installed at the output shaft of each drive motor 22 to collect real-time operating data such as the speed and angle of the drive motors 22 and feed them back to the main control unit. The main control unit has a preset synchronization control algorithm. By comparing the difference between the actual operating parameters of the two drive motors 22 and the preset synchronization parameters, it calculates and outputs corresponding control commands based on the difference, dynamically adjusting the output current, voltage or pulse frequency of the driver to adjust the speed and direction of the drive motors 22. At the same time, a redundancy verification mechanism is adopted to cross-validate the feedback data, and combined with the PID (proportional-integral-derivative) adjustment algorithm, the control parameters are continuously optimized to compensate for operating deviations caused by factors such as load differences and inconsistent characteristics of the drive motors 22. This ensures that the two drive motors 22 maintain a high degree of synchronization in speed, position and torque during operation, achieving a stable and reliable synchronous operation effect.
[0028] Please see Figure 1 and Figure 3 In this embodiment, a fixing seat 9 is fixedly connected to the top of the mounting box 1, and a hinge plate 10 is hinged to the top of the fixing seat 9. A splicing block 11 is fixedly connected to the front of both the fixing seat 9 and the hinge plate 10.
[0029] Specifically, there are two fixing seats 9, and the two splicing blocks 11 are threadedly connected with mounting bolts.
[0030] The working principle of the above embodiments is as follows:
[0031] First, the staff uses the fixed base 9 and the hinge plate 10 to install the mounting box 1 on the rotary screen printing machine. Then, the drive motor 22 is started to drive the stirring frame 23 to rotate. At this time, the dye inside the rotary screen cylinder is fully stirred. When different colors of dye are injected into the rotary screen cylinder, the electric push rod 7 is started to drive the second moving plate 5 to move to the right. At the same time, the two stirring devices 2 move simultaneously, thereby fully stirring the dye inside the rotary screen cylinder.
[0032] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods, and any method that achieves the desired beneficial effect can be implemented. Furthermore, all electrical components in this embodiment are electrically connected to the main controller and power supply. The main controller can be a conventional, known device such as a computer that performs control functions. Those skilled in the art can control the electrical components through simple programming, and the existing disclosed power connection technologies are common knowledge in the field. Therefore, this embodiment will not elaborate further on their specific structural composition and working principles.
[0033] It should be noted that the orientations or positional relationships indicated herein are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the purpose of facilitating the description of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.
[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0035] 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. An automatic paste homogenizing device for a rotary screen printing machine, comprising a mounting box (1) and a stirring device (2) disposed on the top of the mounting box (1), characterized in that: The installation box (1) is equipped with an adjustment mechanism inside, which can adjust the stirring device (2); The adjustment mechanism includes a rotating plate (3) rotatably connected inside the mounting box (1). A first moving plate (4) and a second moving plate (5) are slidably connected inside the mounting box (1). A connecting rod (6) is rotatably connected between the rotating plate (3) and the first moving plate (4) and the second moving plate (5). An electric push rod (7) is fixedly connected to the top of the mounting box (1). An installation block (8) is fixedly connected to the output end of the electric push rod (7).
2. The automatic paste homogenizing device inside the screen of a rotary screen printing machine according to claim 1, characterized in that: A connecting block is fixedly connected between the mounting block (8) and the second movable plate (5), and the mounting box (1) has an movable groove on its upper surface that is adapted to the connecting block.
3. The automatic paste homogenizing device inside the screen of a rotary screen printing machine according to claim 1, characterized in that: The end of the connecting rod (6) away from the rotating plate (3) is located at the center of the first moving plate (4), and a limiting block extending into the mounting box (1) is fixedly connected to the top of the first moving plate (4).
4. The automatic slurry homogenizing device inside the screen of a rotary screen printing machine according to claim 1, characterized in that: The stirring device (2) includes a drive box (21) located at the bottom of the mounting box (1). A drive motor (22) is fixedly connected inside the drive box (21), and a stirring rack (23) extending to the outside of the drive box (21) is fixedly connected to the output shaft of the drive motor (22).
5. The automatic slurry homogenizing device inside the screen of a rotary screen printing machine according to claim 4, characterized in that: A positioning block is fixedly connected between the first movable plate (4) and the drive box (21), and a positioning groove adapted to the positioning block is opened on the lower surface of the mounting box (1).
6. The automatic slurry homogenizing device inside the screen of a rotary screen printing machine according to claim 1, characterized in that: The number of stirring devices (2) is two, and the two stirring devices (2) are symmetrically distributed at the bottom of the mounting box (1).
7. The automatic slurry homogenizing device inside the screen of a rotary screen printing machine according to claim 1, characterized in that: The top of the mounting box (1) is fixedly connected to a fixing seat (9), and the top of the fixing seat (9) is hinged to a hinge plate (10). Both the front of the fixing seat (9) and the hinge plate (10) are fixedly connected to splicing blocks (11).