Screen back-and-forth variable speed high efficiency printing device
By adopting an independent drive design for the printing plate and screen frame with varying speeds in the screen printing machine, the problem of low printing efficiency in traditional screen printing machines is solved, achieving high-efficiency printing and quality assurance, while reducing equipment complexity and maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 王永宏
- Filing Date
- 2025-07-08
- Publication Date
- 2026-07-14
AI Technical Summary
Traditional screen printing machines require the substrate to remain stationary during printing, resulting in low printing efficiency and reduced economic benefits for businesses.
The first and second driving devices are used to drive the printing plate and screen frame to adjust their positions independently. During printing, the printing plate and screen frame move at the same speed. After printing, the screen frame quickly returns to its original position. Combined with the horizontal direction of the squeegee assembly, this ensures the consistency of ink thickness.
It improves printing efficiency, ensures printing quality, simplifies equipment structure, and reduces maintenance costs.
Smart Images
Figure CN224490370U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a printing device, and more particularly to a high-efficiency printing device with a reciprocating speed of the screen frame. Background Technology
[0002] A screen printing machine is a printing device that uses a screen printing plate (stencil) for printing. Its principle is to use a squeegee (squeegee) to squeeze ink, so that the ink passes through the image area of the screen and is printed onto the substrate (such as paper, plastic, PVC, film, etc.) to form patterns or text.
[0003] Traditional screen printing machines require the substrate to be in a static state while waiting to be printed. After the substrate is printed, it is then transferred to the next station, resulting in low printing efficiency and reduced economic benefits for enterprises. Utility Model Content
[0004] Therefore, it is necessary to provide a high-efficiency printing device with a reciprocating frame at different speeds to address the shortcomings of existing technologies.
[0005] A high-efficiency printing device with a reciprocating speed screen frame includes a printing line comprising a support plate, a printing plate, a screen frame, and a squeegee assembly. The printing line further includes a first driving device and a second driving device. The first driving device includes a ring-shaped chain, and the printing plate is mounted on the chain of the first driving device. The first driving device drives the printing plate and chain to adjust their positions. The screen frame is mounted on the second driving device, which drives the screen frame to adjust its position horizontally. The squeegee assembly is positioned above the printing plate and can extend into the screen frame. During printing, the first and second driving devices independently adjust the positions of the printing plate and the screen frame. During printing, the printing plate and the screen frame move at the same speed, and the squeegee assembly extends into the screen frame. After printing is completed, the second driving device drives the screen frame to quickly return to its original position, allowing the screen frame to quickly match the next printing plate.
[0006] In one embodiment, there are two printing plates, which alternately engage with the screen frame.
[0007] In one embodiment, two printing plates are positioned on different sides of the chain, and the two printing plates are evenly distributed around the chain.
[0008] In one embodiment, the printing plate is composed of several sub-plates arranged side by side.
[0009] In one embodiment, the sub-board includes a board body, a connector connected to the end of the board body in a vertical direction, and a limiting post connected to the connector in a horizontal direction. The connector of the sub-board is mounted on a chain. When the printing plate moves in a horizontal direction, the limiting post on the sub-board abuts against the connector of the adjacent sub-board.
[0010] In one embodiment, the first drive device further includes a drive shaft, drive sprockets mounted at both ends of the drive shaft, a driven shaft, driven sprockets mounted at both ends of the driven shaft, and a first drive motor poweredly connected to the drive shaft. The chain is mounted on the drive sprockets and the driven sprockets, and the first drive motor is poweredly connected to the drive shaft.
[0011] In one embodiment, the second driving device includes two guide rails, two sliders respectively slidably mounted on the two guide rails, a rack mounted on the screen frame, a second driving motor, and a driving gear mounted on the second driving motor and meshing with the rack. The guide rails are installed along the printing direction of the printing line, and the screen frame is mounted on the sliders. When the second driving motor drives the driving gear to rotate, the screen frame is synchronously moved along the installation direction of the guide rails through the cooperation between the driving gear and the rack.
[0012] In one embodiment, the scraper assembly includes a scraper body and an adjustment device, the adjustment device driving the scraper body to adjust in the vertical direction, so that the scraper body extends into or retracts from the mesh frame.
[0013] In one embodiment, the device further includes a tooth bar and a tooth opening plate. The tooth bar is mounted on a first driving device, and the tooth opening plate is disposed on the transmission path of the tooth bar. When the tooth bar slides past the tooth opening plate, the tooth opening plate cooperates with the tooth bar to put the tooth bar in an open state.
[0014] In one embodiment, the tooth bar is positioned in front of the printing plate in the direction of transmission.
[0015] The advantages of this utility model of a high-efficiency printing equipment with a reciprocating screen frame at varying speeds are as follows: First and second driving devices are used to independently adjust the position of the printing plate and the screen frame. During printing, the printing plate and the screen frame move at the same speed. After printing, the second driving device drives the screen frame to quickly return to its original position. The speed at which the screen frame returns is greater than the speed during the transmission of the printing plate, thus enabling the screen frame to quickly match the next printing plate and enter the next printing state, improving printing efficiency. Furthermore, the printing plate supports the substrate. During printing, the screen frame and the printing plate move synchronously, while the squeegee body remains stationary in the horizontal direction. This ensures uniform pressure control of the squeegee body on the screen frame, guaranteeing consistent ink thickness on the substrate surface and improving printing quality. Compared with traditional roller printing equipment, the drive device structure corresponding to the screen frame of this invention is relatively simple, eliminating the need for complex gear sets, effectively saving equipment costs and facilitating maintenance. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of the high-efficiency printing equipment with reciprocating speed of the screen frame according to this utility model;
[0017] Figure 2for Figure 1 A schematic diagram of the printing equipment after the support plate has been removed.
[0018] Figure 3 This is a schematic diagram of the structure of the first driving device, printing plate, tooth bar and tooth cutting plate in this utility model when they are installed together.
[0019] Figure 4 This is a schematic diagram of the sub-plate on the printing plate in this utility model;
[0020] Figure 5 This is a schematic diagram of the tooth rack structure in this utility model;
[0021] Figure 6 for Figure 5 Enlarged view of part A in the middle circle. Detailed Implementation
[0022] To make the above-mentioned objects, 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. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.
[0023] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model 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 utility model.
[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0025] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0026] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0027] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.
[0028] Please see Figures 1 to 6 This utility model provides a high-efficiency printing equipment with a reciprocating frame and varying speed, including a feeding line 100, an output line 200 and a printing line (not shown) arranged sequentially along the production line direction. The feeding line 100 transfers the substrate (such as paper) 300 to the printing line. The printing line prints on the upper surface of the substrate 300 and transfers the substrate 300 to the output line 200. The output line 200 removes the printed substrate 300.
[0029] The printing line includes a support plate 10, a printing plate 20, a gripper bar 30, a gripper opening plate 40, a first driving device 50, a screen frame 60, a second driving device 70, and a squeegee assembly 80. The first driving device 50 is mounted on the support plate 10, and the printing plate 20 and gripper bar 30 are mounted on the first driving device 50. The first driving device 50 drives the printing plate 20 and gripper bar 30 to adjust their positions. The screen frame 60 is mounted on the second driving device 70, and the second driving device 70 drives the screen frame 60 to adjust its position in the horizontal direction. The squeegee assembly 80 is located above the printing plate 20 and can extend into the screen frame 60. The gripper opening plate 40 is located on the transmission path of the gripper bar 30. When the gripper bar 30 slides past the gripper opening plate 40, the gripper opening plate 40 engages with the gripper bar 30, causing the gripper bar 30 to be in an open state.
[0030] Specifically, the first drive device 50 includes a drive shaft 51, drive sprockets 52 mounted at both ends of the drive shaft 51, a driven shaft 53, driven sprockets 54 mounted at both ends of the driven shaft 53, a chain 55 mounted on the drive sprockets 52 and the driven sprockets 54, and a first drive motor 56 poweredly connected to the drive shaft 51. The chain 55 is arranged in a ring. The first drive motor 56 drives the drive sprockets 52 to rotate through the drive shaft 51. When the drive sprockets 52 rotate, they drive the chain 55 to rotate synchronously.
[0031] The number of printing plates 20 is two, and each printing plate 20 consists of several sub-plates 21 arranged side by side. The two printing plates 20 are positioned on different sides of the chain 55 and are evenly distributed around the chain 55, so that the two printing plates 20 can alternately cooperate with the screen frame 60. The sub-plate 21 includes a plate body 211, a connector 212 connected to the end of the plate body 211 in the vertical direction, and a limiting post 213 connected to the connector 212 in the horizontal direction. The connector 212 of the sub-plate 21 is mounted on the chain 55. When the printing plate 20 moves in the horizontal direction, the limiting post 213 on the sub-plate 21 abuts against one side of the connector 212 of the adjacent sub-plate 21. By setting the limiting post 213, the printing plate 20 can be moved more smoothly in the horizontal direction, thus improving the printing quality.
[0032] There are two sets of toothed bars 30, each set mounted on the chain 55. Each toothed bar 30 corresponds to a printing plate 20 and is positioned in front of the printing plate 20 in the transmission direction. There are two toothed plates 40, one positioned near the feed line 100 and the other positioned near the feed line 100. Each toothed plate 40 has a guide slope 41.
[0033] Each set of tooth rows 30 includes two bite rows 31, a first bite row shaft 32 fixedly mounted on the bite row seat 31, a second bite row shaft 33 movably mounted on the bite row seat 31, a first chuck 34 mounted on the first bite row shaft 32, a tooth row seat 36 fixedly mounted on the second bite row shaft 33, a drive plate 310, a tooth opening bearing 35 mounted on the drive plate 310, a second chuck 37 movably sleeved on the second bite row shaft 33, a spring 38 elastically abutting between the first chuck 34 and the second chuck 37, and a limiting pin 39 mounted on the second chuck 37. The spring 38 abuts against the tail end of the second chuck 37. The second bite row shaft 33 can rotate and adjust around its axis on the bite row seat 31. When the second bite row seat 31 rotates, it drives the tooth row seat 36 to rotate synchronously. The guide slope 41 on the tooth opening plate 40 is set on the moving path of the tooth opening bearing 35.
[0034] In the initial state, the spring 38 elastically abuts against the first chuck 34 and the second chuck 37, keeping the first chuck 34 and the second chuck 37 in a closed state. The limiting pin 39 abuts against the tooth bar seat 36 to prevent the first chuck 34 and the second chuck 37 from gripping the printing substrate 300 with excessive force, thus damaging the printing substrate 300. When the chain 55 drives the tooth bar 30, when the tooth bar 30 slides over the guide slope 41, the guide slope 41 squeezes the open tooth bearing 35, causing the open tooth bearing 35 to drive the second biting shaft 33 to rotate. The second biting seat 31 drives the tooth bar seat 36 to rotate synchronously. The tooth bar seat 36 drives the second chuck 37 to adjust its angle, so that the second chuck 37 and the first chuck 34 are in an open state. When the tooth bar 30 slides over the guide slope 41, the spring 38 elastically abuts against the second chuck 37 to return to its original position.
[0035] The second driving device 70 includes two guide rails 71, two sliders 72 respectively slidably mounted on the two guide rails 71, a rack 73 mounted on the screen frame 60, a second driving motor 75, and a driving gear 74 mounted on the second driving motor 75 and meshing with the rack 73. The guide rails 71 are installed along the printing direction of the printing line, and the screen frame 60 is mounted on the sliders 72. When the second driving motor 75 drives the driving gear 74 to rotate, the screen frame 60 is moved synchronously along the installation direction of the guide rails 71 through the cooperation of the driving gear 74 and the rack 73.
[0036] The scraper assembly 80 includes a scraper body 81 and an adjustment device (not shown). In this embodiment, the adjustment device is a cylinder. The adjustment device drives the scraper body 81 to adjust in the vertical direction, so that the scraper body 81 extends into the mesh frame 60 or retracts from the mesh frame 60.
[0037] During operation, the first drive device 50 drives the printing plate 20 to continuously and uniformly transmit the material 300 from the feed line 100 to the gripper bar 30. The gripper bar 30 clamps the material 300 and moves forward. The printing plate 20 supports the material 300. There is a slight gap of 1-2 mm between the printing plate 20 and the screen frame 60. The second drive device 70 drives the screen frame 60 to move synchronously with the material 300. When the screen frame 60 enters below the squeegee body 81, the adjustment device drives the squeegee body 81 to move downward. The pressure of the squeegee body 81 makes the screen of the screen frame 60 partially adhere to the material 300. During the movement of the screen frame 60, the squeegee body 81 squeezes the ink on the screen frame 60, so that the ink passes through the screen frame 60 and is printed onto the material 300, forming a pattern or text on the surface of the material 300. After printing is completed, the adjusting device moves the squeegee body 81 upward, causing it to exit the moving path of the screen frame 60, thus preventing interference with the movement of the screen frame 60. The second driving device 70 drives the screen frame 60 to quickly return to its initial position, and the speed at which the screen frame 60 returns is greater than the speed at which the printing plate 20 is driven.
[0038] During the return process of the screen frame 60, the first drive device 50 drives the printed substrate 300 to move forward continuously via the gripper bar 30 until the gripper bar 30 clamping the substrate 300 engages with the opening plate 40. At this point, the gripper bar 30 releases the printed substrate 300, and the printed substrate 300 falls into the output line 200. When the screen frame 60 returns to its initial position, the other gripper bar 30 and the other printing plate 20 are moved to their initial positions to engage with the substrate 300.
[0039] The advantages of this utility model of a high-efficiency printing equipment with a reciprocating frame at varying speeds are as follows:
[0040] 1. The first driving device 50 and the second driving device 70 are used to drive the printing plate 20 and the screen frame 60 to adjust their positions independently. During printing, the printing plate 20 and the screen frame 60 move at the same speed. After printing is completed, the second driving device 70 drives the screen frame 60 to return to its original position quickly. The speed at which the screen frame 60 returns to its original position is greater than the speed at which the printing plate 20 is driven, so that the screen frame 60 can quickly match the next printing plate 20 and enter the next printing state, thereby improving printing efficiency.
[0041] 2. The substrate 300 is supported by the printing plate 20. During the printing process, the screen frame 60 and the printing plate 20 are moved synchronously, and the squeegee body 81 remains stationary in the horizontal direction. This ensures that the pressure of the squeegee body 81 on the screen frame 60 is uniformly controlled, ensuring the consistency of the ink thickness on the surface of the substrate 300 and improving the printing quality.
[0042] 3. Compared with traditional roller printing equipment, the drive device structure corresponding to the screen frame 60 of the present invention is relatively simple, without the need for a complex gear set structure, which effectively saves equipment costs and facilitates maintenance.
[0043] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0044] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A high-efficiency printing device with a reciprocating speed screen frame, comprising a printing line, the printing line including a support plate, a printing plate, a screen frame, and a squeegee assembly, characterized in that... The printing line also includes a first driving device and a second driving device. The first driving device includes a chain arranged in a ring. The printing plate is mounted on the chain of the first driving device. The first driving device drives the printing plate and the chain to adjust their positions. The screen frame is mounted on the second driving device. The second driving device drives the screen frame to adjust its position in the horizontal direction. The squeegee assembly is located above the printing plate and can extend into the screen frame. During printing, the first driving device and the second driving device drive the printing plate and the screen frame to adjust their positions independently. During the printing process, the printing plate and the screen frame move at the same speed. The squeegee assembly extends into the screen frame. After printing is completed, the second driving device drives the screen frame to quickly return to its original position, so that the screen frame can quickly match the next printing plate.
2. The high-efficiency printing equipment with reciprocating frame at varying speeds according to claim 1, characterized in that, The number of printing plates is two, and the two printing plates alternately cooperate with the screen frame.
3. The high-efficiency printing equipment with reciprocating speed of the screen frame according to claim 2, characterized in that, The two printing plates are positioned on different sides of the chain, and are evenly distributed around the chain.
4. The high-efficiency printing equipment with reciprocating speed of the screen frame according to claim 1, characterized in that, The printing plate is composed of several sub-plates arranged side by side.
5. The high-efficiency printing equipment with reciprocating speed of the screen frame according to claim 4, characterized in that, The sub-board includes a board body, a connector connected to the end of the board body in a vertical direction, and a limiting post connected to the connector in a horizontal direction. The connector of the sub-board is mounted on a chain. When the printing plate moves in a horizontal direction, the limiting post on the sub-board abuts against the connector of the adjacent sub-board.
6. The high-efficiency printing equipment with reciprocating speed of the screen frame according to claim 1, characterized in that, The first drive device further includes a drive shaft, drive sprockets mounted at both ends of the drive shaft, a driven shaft, driven sprockets mounted at both ends of the driven shaft, and a first drive motor that is powered by the drive shaft. The chain is mounted on the drive sprockets and the driven sprockets, and the first drive motor is powered by the drive shaft.
7. The high-efficiency printing equipment with reciprocating speed of the screen frame according to claim 1, characterized in that, The second driving device includes two guide rails, two sliders respectively slidably mounted on the two guide rails, a rack mounted on the screen frame, a second driving motor, and a driving gear mounted on the second driving motor and meshing with the rack. The guide rails are installed along the printing direction of the printing line, and the screen frame is mounted on the sliders. When the second driving motor drives the driving gear to rotate, the screen frame is moved synchronously along the installation direction of the guide rails through the cooperation between the driving gear and the rack.
8. The high-efficiency printing equipment with reciprocating speed of the screen frame according to claim 1, characterized in that, The scraper assembly includes a scraper body and an adjustment device. The adjustment device drives the scraper body to adjust in the vertical direction, so that the scraper body extends into the mesh frame or retracts from the mesh frame.
9. The high-efficiency printing equipment with reciprocating frame at varying speeds according to claim 1, characterized in that, It also includes a tooth bar and a tooth opening plate. The tooth bar is installed on the first drive device, and the tooth opening plate is set on the transmission path of the tooth bar. When the tooth bar slides past the tooth opening plate, the tooth opening plate cooperates with the tooth bar to put the tooth bar in the open state.
10. The high-efficiency printing equipment with reciprocating speed of the screen frame according to claim 9, characterized in that, The tooth rack is positioned in front of the printing plate in the direction of transmission.