Screen printing alignment device

Abstract

The utility model relates to the technical field of printing equipment, and particularly discloses a silk-screen printing alignment device which comprises a working table, a movable table is clamped on the working table in a sliding mode, and four fixing mechanisms used for fixing soft printed materials are arranged at the four vertexes of the movable table respectively. A printing table fixedly connected to the moving table is arranged among the four fixing mechanisms, a moving mechanism used for driving the moving table to move on the working table is arranged on the working table, and a silk-screen printing mechanism used for printing printed materials on the printing table is arranged on the working table. The silk-screen printing alignment device solves the technical problem that an existing silk-screen printing alignment device is prone to wrinkling and deformation in the process of fixing and printing some soft printed materials.

Description

TECHNICAL FIELD

[0001] The utility model relates to printing equipment technical field, specifically disclose a silk screen printing alignment device. BACKGROUND

[0002] Silk screen printing is a widely used printing technology, it takes silk screen as a plate base, through the photosensitive plate making technology to make silk screen printing plate with text, silk screen printing is mainly composed of five elements: silk screen printing plate, scraper, ink, printing table and printing material, in the printing process, the text part of silk screen printing plate mesh allows ink to pass through, and the non-text part mesh prevents ink from passing through, when printing, ink is poured into one end of silk screen printing plate, and a certain pressure is applied to the ink part on the silk screen printing plate by the scraper, and the scraper moves at a constant speed towards the other end of the silk screen printing plate, the ink is squeezed from the mesh of the text part to the printing material by the scraper in the movement, in silk screen printing, the alignment device is one of the key components to ensure printing quality, its main function is to accurately align the silk screen printing plate with the printing material to ensure the accuracy and consistency of the printed pattern, with the continuous development of printing process, the alignment device is also evolving to adapt to different sizes, shapes and materials of the printing material, and meet the needs of high-precision printing.

[0003] The utility model discloses a silk screen printing multilayer alignment structure, including base, the inside of base is provided with lifting plate, the front of base is provided with negative pressure seat, the utility model discloses a negative pressure pump is installed on the back of negative pressure seat, cooperation negative pressure suction cup's use, after the use of first electric telescopic link cooperation screw rod and servo motor, can make negative pressure seat fast pressure in the surface side of printing material, drive printing material to move to the area of base top for the placement of printing material, for the placement of printing material, do not need staff to manually put, reduced the tired degree of staff, through installing heating cover on base top, cooperation heater and fan's use, can make the hot air of exhaust hole fast exhaust dry the ink mark on the surface of printing material through heating cover bottom, improve its dry speed, prevent the appearance ink mark dyeing condition, guarantee the integrity of printing pattern.

[0004] The existing alignment device only solves the problems of automatic feeding and slow drying. In the screen printing process, the existing alignment device is usually designed to fix and align relatively hard printing materials (such as glass, metal, etc.). However, when encountering relatively soft printing materials (such as T-shirts), these devices often cannot effectively flatten and arrange the textile, which leads to wrinkles and deformation of the textile during printing, thereby causing alignment errors and affecting printing quality and efficiency. After fixing the printing material, the existing screen printing alignment device usually cannot perform fine adjustment operations, which makes it impossible to correct the position of the printing material in time once the position of the printing material deviates during printing, thereby causing the printing pattern to deviate or misalign, which seriously affects the printing quality. Content of the utility model

[0005] Therefore, the utility model aims at providing a screen printing alignment device to solve the technical problem that the existing screen printing alignment device is prone to wrinkles and deformation during the fixing and printing of some relatively soft printing materials.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: the movable table is slidably clamped on the workbench, four fixing mechanisms for fixing relatively soft printing materials are arranged at four vertices of the movable table, a printing table fixedly connected to the movable table is arranged between the four fixing mechanisms, a moving mechanism for moving the movable table on the workbench is arranged on the workbench, and a screen printing mechanism for printing the printing material on the printing table is arranged on the workbench. The movable table slides in the moving groove, and the position is flexibly adjusted in cooperation with the moving mechanism; the four fixing mechanisms are located at the four vertices of the movable table, can effectively fix the soft printing material, prevent the soft printing material from shifting or deforming during the fixing and printing process, the combination of the fixing mechanism and the printing table further enhances the support and stability of the printing material, the cooperation of the screen printing mechanism and the printing table ensures the accuracy and efficiency of the printing process, and overall, the device effectively improves the printing quality and efficiency of the soft printing material through the mutual cooperation between the mechanisms, and avoids the problem of wrinkles and deformation of the printing material during the fixing and printing process.

[0007] Further, the fixing mechanism comprises a fixing frame fixedly connected to the moving table, a telescopic device arranged on the fixing frame, a first belt conveyor arranged on the telescopic device, a second belt conveyor fixedly connected to the fixing frame, and a mounting plate fixedly connected to the fixing frame, a second belt conveyor fixedly connected to the side wall of the mounting plate and located below the first belt conveyor. The four fixing mechanisms are located at the four vertices of the moving table, which can effectively fix the four corners of the soft printing substrate, provide stable support, prevent displacement or deformation during printing, and ensure the accuracy of the printed pattern. The first belt conveyors on the four fixing mechanisms can move in different directions to stretch the printing substrate and ensure the printing flatness. Meanwhile, the first belt conveyors can move in the same direction to fine-tune the position of the printing substrate and ensure the accurate alignment of the printed pattern. This structure is suitable for various types of printing substrates, especially soft textiles, and can effectively meet different printing needs and reduce the problems of wrinkles and deformation during printing.

[0008] Further, the telescopic device comprises a support frame fixedly connected to the fixing frame, a first hydraulic rod mounted on the support frame, a first connecting frame and a second connecting frame fixedly connected to the telescopic end of the first hydraulic rod, and the first belt conveyor arranged on the second connecting frame. The first hydraulic rod can drive the first belt conveyor to move and clamp and fix the printing substrate between the second belt conveyors, ensuring the stability of the printing substrate during printing, avoiding displacement or deformation, and ensuring the accuracy of the printed pattern. After the first belt conveyor starts to rotate, it can drive the printing substrate to move on the second belt conveyor, realize flexible adjustment of the position of the printing substrate, facilitate accurate alignment of the printing substrate, and improve the printing quality.

[0009] Further, the moving mechanism comprises a threaded rod, one end of the threaded rod being rotatably mounted on the workbench, the other end of the threaded rod being threadedly connected to the moving table, penetrating the workbench and being fixedly connected to the power output shaft of the motor, and the motor being arranged on the workbench. The threaded rod can drive the moving table to move horizontally, which, in combination with the longitudinal conveying of the first belt conveyor, significantly improves the adjustment angle of the position of the printing substrate, ensures the high-precision alignment of the printed pattern, and realizes fine adjustment of the position of the printing substrate through the cooperative work of the moving mechanism and the first belt conveyor, thereby improving the printing quality.

[0010] Further, the screen printing mechanism comprises a second hydraulic rod mounted on the workbench, and a fixing device fixedly connected to the telescopic end of the second hydraulic rod. Compared with the traditional multi-directional adjustment mechanism, the fixing device has a simpler structure and reduces the error accumulation problem caused by long-term multi-directional adjustment, thereby ensuring the stability of the printing alignment.

[0011] The working principle and beneficial effects of this solution are as follows:

[0012] When it is necessary to fix the soft substrate for printing, the first hydraulic rod is activated, and its telescopic end drives the first connecting frame and the second connecting frame to move, thereby adjusting the position of the first belt conveyor. After the soft substrate is placed on the printing table and initially flattened, one corner of it is placed between the first belt conveyor and the second belt conveyor. The first hydraulic rod is driven to move the first belt conveyor closer to the second belt conveyor to clamp and fix that corner of the substrate. This step is repeated to complete the fixing of the four corners of the substrate.

[0013] After the four corners are fixed, the first belt conveyor on two of the fixing mechanisms is started to rotate in opposite directions. The friction force drives the substrate to move on the second belt conveyor without a power source, achieving a stretching and straightening effect. If the position of the substrate needs to be adjusted, the first belt conveyor of all four fixing mechanisms is started to move in the same direction at the same time, causing the overall position of the substrate to be finely adjusted.

[0014] Next, the motor is started, driving the threaded rod to rotate, moving the moving stage within the moving slot of the worktable to the lower end of the screen printing plate. The second hydraulic rod is then activated, moving the fixing device towards the moving stage until the screen printing plate on the fixing device is in contact with the substrate on the printing table, and printing begins. This design, through the coordinated action of four fixing mechanisms, especially the cooperation between the first and second belt conveyors, achieves stable clamping and flexible movement of the soft substrate. On the one hand, it effectively prevents misalignment caused by substrate deformation during printing; on the other hand, through the stretching and straightening effect, it ensures precise alignment of the printed pattern and high-quality printing. At the same time, this device simplifies the operation process, improves printing efficiency, and provides a solid guarantee for subsequent printing.

[0015] Other advantages, objectives, and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination and study, or may be learned from practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of an embodiment;

[0017] Figure 2 This is a rear view of an embodiment;

[0018] Figure 3 Exploded view of the fixing mechanism in the embodiment;

[0019] Figure 4 This is a side view of the fixing mechanism in an embodiment.

[0020] The following are the markings in the attached diagram: 1. Workbench; 2. Moving table; 3. Printing table; 4. Fixed frame; 5. Support frame; 6. First hydraulic rod; 7. First connecting frame; 8. Second connecting frame; 9. First belt conveyor; 10. Mounting plate; 11. Second belt conveyor; 12. Anti-slip strip; 13. Threaded rod; 14. Motor; 15. Fixed seat; 16. Second hydraulic rod; 17. Fixing device; 18. Auxiliary telescopic rod; 19. Moving groove. Detailed Implementation

[0021] The following detailed description illustrates the specific implementation method:

[0022] Example

[0023] like Figures 1 to 4 As shown, a screen printing alignment device is disclosed, including a worktable 1, a movable stage 2, a printing stage 3, four fixing mechanisms, a moving mechanism, and a screen printing mechanism. The worktable 1 has a movable groove 19, within which the movable stage 2 is slidably disposed. The printing stage 3 is fixedly connected to the upper surface of the movable stage 2. The movable stage 2 is quadrilateral, and four fixing mechanisms are respectively arranged at the four vertices of the movable stage 2. These four fixing mechanisms can be used to fix relatively soft textiles. The printing stage 3 is located between the four fixing mechanisms. The worktable 1 is provided with a moving mechanism for driving the movable stage 2 to move on the worktable 1. The worktable 1 is provided with a screen printing mechanism for printing the substrate on the printing stage 3, such as... Figure 1 and Figure 2 As shown.

[0024] The fixing mechanism includes a fixing frame 4, a telescopic device, a first belt conveyor 9, a mounting plate 10, a second belt conveyor 11, and several anti-slip strips 12. The fixing frame 4 is mounted on the moving platform 2, located at the apex of the moving platform 2. A telescopic device is mounted on the fixing frame 4, and the first belt conveyor 9 is mounted on the telescopic device. The conveying direction of the first belt conveyor 9 is perpendicular to the extension direction of the moving trough 19. The mounting plate 10 is fixedly connected to the fixing frame 4, and the second belt conveyor 11 is fixedly connected to the side wall of the mounting plate 10. The second belt conveyor 11 is located below the first belt conveyor 9 and has no power source. The upper surface of the second belt conveyor 11 is parallel to the upper surface of the printing table 3. Both the first belt conveyor 9 and the second belt conveyor 11 are existing technologies. Several anti-slip strips 12 are provided on both the first belt conveyor 9 and the second belt conveyor 11. Figure 3 and Figure 4 As shown.

[0025] The telescopic device includes a support frame 5, a first hydraulic rod 6, a first connecting frame 7, and a second connecting frame 8. The support frame 5 is fixedly connected to the fixed frame 4. The first hydraulic rod 6 is installed on the support frame 5. The telescopic direction of the first hydraulic rod 6 is perpendicular to the extension direction of the moving groove 19. The telescopic end of the first hydraulic rod 6 is fixedly connected to the first connecting frame 7. The end of the first connecting frame 7 away from the telescopic end of the first hydraulic rod 6 passes through the fixed frame 4. The end of the first connecting frame 7 that passes through the fixed frame 4 is fixedly connected to the second connecting frame 8. A first belt conveyor 9 is installed inside the second connecting frame 8.

[0026] The moving mechanism includes a threaded rod 13, a motor 14, and a fixed base 15. The threaded rod 13 is threadedly connected to the moving table 2. The threaded rod 13 is rotatably mounted within the moving slot 19. One end of the threaded rod 13 is rotatably connected to the worktable 1, and the other end of the threaded rod 13 passes through the worktable 1. The end of the threaded rod 13 passing through the worktable 1 is fixedly connected to a coupling on the power output shaft of the motor 14. The fixed base 15 is fixedly connected to the lower end face of the motor 14 and is fixedly connected to the side wall of the worktable 1. Figure 1 and Figure 2 As shown.

[0027] The screen printing mechanism includes a second hydraulic rod 16, a screen printing plate body 17, and two auxiliary telescopic rods 18. The second hydraulic rod 16 is mounted on the worktable 1, and its extension direction is opposite to that of the first hydraulic rod 6. A fixing device 17 is fixedly connected to the extension end of the second hydraulic rod 16. The fixing device 17 is equipped with a screen printing plate, which can be aligned with the printing table 3. Two auxiliary telescopic rods 18 are provided between the fixing device 17 and the worktable 1. The fixing device 17, the screen printing plate, and the two auxiliary telescopic rods 18 are all existing technologies. Figure 2 As shown.

[0028] In practice

[0029] When it is necessary to fix a relatively soft substrate for printing, firstly, the telescopic end of the first hydraulic rod 6 on the support frame 5 is retracted to the end away from the second belt conveyor 11. When the telescopic end of the first hydraulic rod 6 retracts, it will drive the first connecting frame 7 and the second connecting frame 8 to move. When the second connecting frame 8 moves, it will drive the first belt conveyor 9 to move. At this time, the soft substrate to be printed can be placed on the printing table 3 for preliminary flattening. Then, one corner of the substrate is placed between the first belt conveyor 9 and the second belt conveyor 11 on the mounting plate 10. Then, the first hydraulic rod 6 can be driven to move the first belt conveyor 9 to the end closer to the second belt conveyor 11, clamping and fixing that corner of the substrate between the first belt conveyor 9 and the second belt conveyor 11. The same method is used to operate the fixing mechanisms of the remaining three corners in sequence to complete the fixing of the four corners of the substrate. After all four corners of the substrate are fixed, since the substrate is currently clamped and fixed by the four corners by the four fixing mechanisms, the first belt conveyor 9 on two of the fixing mechanisms is started to rotate in opposite directions. At this time, starting the rotation of the first belt conveyor 9 can drive the substrate to move on the second belt conveyor 11 without a power source through friction, stretching the two ends of the substrate in opposite directions to achieve a stretching and straightening effect. When it is necessary to adjust the position of the substrate, the first belt conveyor 9 on all four fixing mechanisms is started to move in one direction at the same time, driving the position of the substrate to be finely adjusted. Several anti-slip strips 12 on the first belt conveyor 9 and the second belt conveyor 11 can ensure that the substrate will not slip when it is clamped and driven to move.

[0030] When the substrate is clamped and fixed between the first belt conveyor 9 and the second belt conveyor 11, the motor 14 on the fixed base 15 is started simultaneously. The motor 14 drives the threaded rod 13 on the worktable 1 to rotate. When the threaded rod 13 rotates, it drives the moving table 2 to move in the moving groove 19 opened on the worktable 1. When the moving table 2 moves to the lower end of the screen printing plate on the fixed device 17, the motor 14 stops working. At this time, the second hydraulic rod 16 can be started to retract and move towards the end closer to the moving table 2. When the second hydraulic rod 16 starts to retract, it drives the fixed device 17 to move towards the end closer to the moving table 2. The fixed device 17 is assisted and supported by two auxiliary telescopic rods 18. When the screen printing plate moves to fit with the substrate on the printing table 3, the second hydraulic rod 16 stops working. At this time, the pattern preset on the screen printing plate can be scraped onto the surface of the substrate.

[0031] The above description is merely an embodiment of this utility model, and common knowledge such as specific structures and characteristics in the solution is not described in detail here. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of this utility model, and these should also be considered within the protection scope of this utility model. These modifications and improvements will not affect the effectiveness of the implementation of this utility model or its practicality.

Claims

1. A screen printing registration apparatus, characterized by: The application relates to a printing device, which comprises a workbench, a moving table slidingly clamped on the workbench, four fixing mechanisms for fixing relatively soft printing objects respectively arranged at four vertexes of the moving table, a printing table fixedly connected to the moving table and arranged between the four fixing mechanisms, a moving mechanism arranged on the workbench and used for moving the moving table on the workbench, and a screen printing mechanism arranged on the workbench and used for printing the printing objects on the printing table.

2. A screen printing registration device according to claim 1, wherein: The fixing mechanism comprises a fixing frame fixedly connected to the moving table, an extension device arranged on the fixing frame, a first belt conveyor arranged on the extension device, a mounting plate fixedly connected to the fixing frame, a second belt conveyor fixedly connected to the mounting plate and arranged on the side wall of the mounting plate, and the second belt conveyor is fixedly connected to the fixing frame and located below the first belt conveyor.

3. A screen printing registration device according to claim 2, wherein: The extension device comprises a supporting frame fixedly connected to the fixing frame, a first hydraulic rod mounted on the supporting frame, a first connecting frame and a second connecting frame fixedly connected to the extension end of the first hydraulic rod, and the first belt conveyor is arranged on the second connecting frame.

4. A screen printing registration device according to claim 3, wherein: The moving mechanism comprises a threaded rod, one end of the threaded rod is rotatably mounted on the workbench, the other end of the threaded rod is fixedly connected to the moving table in a threaded mode, penetrates through the workbench and is fixedly connected to the power output shaft of a motor, and the motor is arranged on the workbench.

5. A screen printing registration device according to claim 4, wherein: The screen printing mechanism comprises a second hydraulic rod, the second hydraulic rod is mounted on the workbench, and the extension end of the second hydraulic rod is fixedly connected to a fixing device.

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