Printing device for non-woven fabric screen printing machine

Abstract

The utility model relates to a printing device for a non-woven fabric screen printing machine, which comprises a support frame, a screen printing plate mechanism arranged on the support frame, a driving mechanism linked with the screen printing plate mechanism, and an ink scraping component arranged above the screen printing plate mechanism and arranged on the support frame. The two ends of the printing roller are rotationally installed on the rack, the end of the printing roller is in linkage with a power source assembly, and the power source assembly can drive the printing roller to rotate. The driving mechanism can drive the screen printing plate mechanism to reciprocate in the printing direction. The printing device for the non-woven fabric screen printing machine has the beneficial effects that the printing device for the non-woven fabric screen printing machine is suitable for single-color, double-color or multi-color printing modes and the like.

Description

Technical Field

[0001] The utility model specifically relates to a printing device for a non-woven fabric screen printing machine. Background Art

[0002] A screen printer is a tool for printing text and images. Its working principle is: the printed text and images are made into a printing plate, which is installed on a printing press. The machine then applies ink or solder paste to the places on the printing plate where there are text and images, and then directly or indirectly transfers them to paper, non-woven fabrics, metal plates, plastics, leather, wood boards, glass, ceramics or other printing substrates, thereby printing out printed products that are the same as the printing plate.

[0003] For example, the Chinese utility model patent document with the publication number "CN208615464U" discloses a screen printing machine, which is composed of an unwinding component, a printing component, a drying component, and a winding component, and the screen printing machine can realize monochrome printing. From this public document, we can understand the basic structure and general working mode of the existing monochrome non-woven screen printing machine.

[0004] Furthermore, the Chinese utility model patent document with the publication number "CN217047889U" has a more detailed description of the "printing component", in which the printing component mainly consists of a placement rack 1, a printing platform, a placement rack 2, a scraper, a lifting assembly, a placement rack 3, and a limiting assembly. The printing platform is used to place paper, the lifting assembly is used to lift the placement rack 2, the placement rack 3 is used to place the printing plate, the limiting assembly is used to limit the movement of the printing plate, and the placement rack 3 is provided with an opening in the middle, and the placement rack 3 is provided with an entrance on the side; the printing plate enters from the entrance and is moved to the placement rack 3 and exposed from the opening, and the printing plate can be replaced by removing the limit of the limit assembly and taking out the printing plate from the entrance. It can be seen that the working method of the existing printing device is mainly as follows: after the non-woven fabric and other materials are placed and moved to the placement rack 2, the limiting assembly first limits the material, and the lifting assembly controls the placement rack 3 to descend, and the scraper is performing the screen printing work. After the screen printing is completed, the lifting assembly controls the placement rack 3 to rise, and the limiting assembly releases the limit of the material. Repeating the above operation can achieve continuous production.

[0005] The above-mentioned printing components can realize basic printing work, but have the following defects:

[0006] First, each time printing is performed, the material needs to be limited by a limiting component, and then printing is performed. After printing is completed, the limiting component needs to be released before the material can be moved for the next printing, which results in extremely low work efficiency.

[0007] Secondly, since the placement frame 2 is used to place the material and as a supporting component to interact with the scraper to complete the printing, this structure makes the printing component only suitable for single-color printing and cannot be used for double-color or multi-color printing. This is mainly because the contact area of ​​the placement frame 2 is too large and the placement frame 2 is fixed. After the single-color printing is completed, if the next printing is carried out, the front printing glue will stick to the back printing screen. Therefore, it is necessary to improve the printing device to adapt to single-color, double-color or multi-color printing modes. Summary of the invention

[0008] The technical problem to be solved by the utility model is to provide a printing device for a non-woven fabric screen printer in view of the above-mentioned deficiencies in the prior art, which is suitable for single-color, double-color or multi-color printing modes.

[0009] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a printing device for a non-woven fabric screen printing machine, comprising a support frame, on which a screen mechanism and a driving mechanism linked to the screen mechanism are provided, and above the screen mechanism is provided an ink scraping assembly installed on the support frame, characterized in that a printing roller is provided below the screen mechanism, both ends of the printing roller are rotatably installed on the frame and the end of the printing roller is linked to a power source assembly, and the power source assembly can drive the printing roller to rotate; the driving mechanism can drive the screen mechanism to move back and forth along the printing direction.

[0010] By adopting the above technical scheme, designing the printing roller, and controlling the rotation of the printing roller through the power source component, the following technical effects can be achieved: First, it is suitable for single-color, two-color or multi-color printing modes. During the printing process, the front color will not be stained on the screen mechanism. Since the parts of the screen mechanism used for printing can be elastically deformed, the scraper component will squeeze the parts of the screen mechanism used for printing during the scraping process, so that the printing roller cooperates with the scraper component to print the position on the non-woven fabric that needs to be printed, and the places that do not need to be printed will not be colored because there are no supporting parts below, so single-color, two-color or multi-color printing modes can be achieved. Second, it has good working continuity and high production efficiency. The non-woven fabric moves with the printing roller, and the screen mechanism also moves with the non-woven fabric. The scraper component moves up and down for printing. After a single processing is completed, the non-woven fabric continues to move forward, the printing roller continues to rotate, and the screen mechanism is reset under the drive mechanism, and the next printing is performed, thereby achieving processing continuity and improving production efficiency. Thirdly, the operation process is simplified and the operation complexity is reduced, and there is no need to limit or release the non-woven fabric. Fourthly, the stretching of the non-woven fabric during the printing process is reduced, and the printing is more uniform. Among them, the power source component can adopt the motor-belt pulley transmission method or directly use the motor.

[0011] The above-mentioned printing device for the non-woven fabric screen printer can be further configured as follows: an adjustable gap is provided between the printing roller and the screen mechanism, and a printing layer is adhered to the outer periphery of the printing roller.

[0012] By adopting the above technical solution, the diameter of the printing roller can be reduced to promote an adjustable gap between the printing roller and the screen mechanism, and then the printing layer can be used to fill the gap, so as to achieve cooperation with the screen mechanism and realize printing; on the basis of realizing printing, the printing layer can change its position of adhesion on the printing roller according to actual conditions to adapt to printing at different positions, thereby expanding the application range of the printing device. Among them, the printing layer can be made of materials such as rubber.

[0013] The above-mentioned printing device for the non-woven fabric screen printer can be further configured as follows: an auxiliary printing roller is provided on the side of the printing cylinder, and the auxiliary printing roller is distributed below the screen mechanism.

[0014] By adopting the above technical solution, the nonwoven fabric is tensioned to assist printing.

[0015] The above-mentioned printing device for the non-woven fabric screen printing machine can be further configured as follows: the driving mechanism includes a slider, one end of the slider is linked to the screen mechanism, and the other end is linked to a belt, the belt is arranged along the printing direction and both ends are linked to pulleys, a group of pulleys are linked to a main drive shaft, and the main drive shaft is linked to a motor installed on a support frame, the driving mechanism also includes a slide rail arranged parallel to the belt and installed on the support frame, and the slider is slidably connected to the slide rail under the drive of the belt.

[0016] By adopting the above technical solution, the motor drives the main drive shaft to rotate, and the main drive shaft drives the belt to move, and the slider follows the belt to move (during this period, the slide rail guides the slider to improve the sliding smoothness of the slider), and the screen mechanism can move left and right to complete printing.

[0017] The above-mentioned printing device for the non-woven fabric screen printing machine can be further configured as follows: the screen mechanism includes a screen frame and a screen plate arranged in the middle of the screen frame, a screen mounting frame is arranged on the outer periphery of the screen frame, the screen mounting frame is detachably connected to the screen frame, the screen mounting frame is linked to the slider, and the ink scraping assembly is distributed above the screen plate.

[0018] By adopting the above technical solution, when the ink scraping assembly moves up and down to scrape ink, the screen plate is elastic and under the pressure of the ink scraping assembly, the ink on the screen plate will be printed onto the non-woven fabric; further, the screen mounting frame is used for the linkage between the screen frame and the slider.

[0019] The above-mentioned printing device for the non-woven fabric screen printing machine can be further configured as follows: a vertical clamp is provided between the screen mounting frame and the screen frame, the vertical clamp includes a flange base, a U-shaped pressure handle, and a straight base, the flange base is fixedly mounted on the screen mounting frame, one end of the straight base is hinged to the flange base, the middle part is hinged to the middle part of the U-shaped pressure handle, and the other end is connected to the screen frame in abutment with the screen frame, and the end of the U-shaped pressure handle is hinged to the flange base.

[0020] By adopting the above technical solution, the screen frame can be stably installed on the screen mounting frame and is easy to disassemble. The clamping and loosening actions can be quickly realized, thereby improving the assembly efficiency.

[0021] The above-mentioned printing device for the non-woven fabric screen printer can be further configured as follows: the screen mechanism also includes a screen separator, and the screen separator is arranged parallel to the ink scraper assembly and distributed in the middle of the screen frame.

[0022] By adopting the above technical solution, due to the supporting function of the plate-dividing parts, each plate can be selectively printed according to the actual situation, thereby ensuring the printing quality and position accuracy of each plate.

[0023] The above-mentioned printing device for the non-woven fabric screen printing machine can be further configured as follows: the ink scraping assembly includes an ink scraping blade, an ink return scraper, an ink scraping mounting frame, and an ink feeding gun, the ink scraping mounting frame is fixedly mounted on the support frame, the ink feeding gun is mounted in the middle of the ink scraping mounting frame, the two ends of the ink scraping blade are respectively linked to a group of electric push rods, the electric push rods are mounted on the ink scraping mounting frame, the two ends of the ink return scraper are respectively linked to a group of cylinders, and the cylinders are mounted on the ink scraping mounting frame.

[0024] By adopting the above technical solution, the cylinder drives the ink return scraper to move up and down, and the electric push rod drives the ink scraper to move up and down. In conjunction with the reciprocating movement of the screen mechanism and the support of the printing roller on the non-woven fabric, printing can be achieved; the ink feeding gun is used to transport ink.

[0025] The above-mentioned printing device for the non-woven fabric screen printing machine can be further configured as follows: the auxiliary printing roller is located on the side away from the printing roller and is provided with a tracking electric eye assembly, the tracking electric eye assembly includes a color mark sensor and a sensor mounting frame, the sensor mounting frame is provided with a connecting rod, the color change sensor is installed on the connecting rod, the sensor mounting frame is linked to a handwheel shaft, the handwheel shaft is provided with a gear, the gear is meshed with a rack, and the rack is installed on the support frame.

[0026] The above technical solution is adopted to set a tracking electric eye component to detect the position and movement state of the printed product to ensure the accuracy and quality of printing. It can also be used to detect defects in printed products, such as uneven color and position offset. If defects are detected, the printing parameters can be adjusted in time or the machine can be stopped for processing to avoid the production of defective products. Furthermore, by turning the handwheel shaft, the gear can be driven to rotate. Since the gear and the rack are meshed, the position of the connecting rod is changed to adjust the position of the tracking electric eye component.

[0027] The utility model is further described in detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is an overall schematic diagram of an embodiment of the utility model;

[0029] Figure 2 This is a schematic diagram of the partial structure of the embodiment of the utility model except the support frame Figure 1 ;

[0030] Figure 3 This is a schematic diagram of the partial structure of the embodiment of the utility model except the support frame Figure 2 ;

[0031] Figure 4 A schematic diagram of a printing roller according to an embodiment of the utility model;

[0032] Figure 5 This is a schematic diagram of an ink scraping assembly according to an embodiment of the utility model;

[0033] Figure 6 This is a schematic diagram of the assembly of the screen mechanism and the driving mechanism of an embodiment of the utility model;

[0034] Figure 7 A schematic diagram of a vertical clamp according to an embodiment of the utility model;

[0035] Figure 8 This is a schematic diagram of a tracking electric eye assembly according to an embodiment of the present utility model.

[0036] Label annotation: support frame 1; screen mechanism 2, screen frame 21, screen plate 22, screen mounting frame 23, vertical clamp 24, flange base 241, U-shaped pressure handle 242, straight base 243, plate separation part 25; driving mechanism 3, slider 31, belt 32, main driving shaft 33, motor 34, slide rail 35; ink scraping assembly 4, ink scraping blade 41, ink return scraper 42, ink scraping mounting frame 43, ink feeding gun 44, cylinder 45, electric push rod 46; printing roller 5, printing layer 51; power source assembly 6, auxiliary printing roller 7; tracking electric eye assembly 8, color mark sensor 81, sensor mounting frame 82, connecting rod 83, handwheel shaft 84, gear 85, rack 86. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0038] like Figures 1 to 8 The printing device for the non-woven fabric screen printing machine shown comprises a support frame 1, on which a screen mechanism 2 and a driving mechanism 3 linked to the screen mechanism 2 are arranged, above the screen mechanism 2 there is an ink scraping assembly 4 installed on the support frame 1, below the screen mechanism 2 there is a printing roller 5, both ends of the printing roller 5 are rotatably installed on the frame and the end of the printing roller 5 is linked to a power source assembly 6, the power source assembly 6 can drive the printing roller 5 to rotate; the driving mechanism 3 can drive the screen mechanism 2 to move back and forth along the printing direction. Among them, the power source assembly 6 is a motor-belt pulley transmission method.

[0039] An adjustable gap is provided between the printing roller 5 and the screen mechanism 2, and a printing layer 51 is adhered to the outer periphery of the printing roller 5. The printing roller 5 can be reduced in diameter to provide an adjustable gap between the printing roller 5 and the screen mechanism 2, and then the printing layer 51 can be used to supplement the gap, so as to achieve cooperation with the screen mechanism 2 and achieve printing; on the basis of achieving printing, the printing layer 51 can change the position where it is adhered to the printing roller 5 according to actual conditions to adapt to printing at different positions, thereby expanding the application range of the printing device. Among them, the printing layer 51 can be made of materials such as rubber.

[0040] An auxiliary printing roller 7 is provided on the side of the printing cylinder 5, and the auxiliary printing roller 7 is distributed below the screen mechanism 2. The non-woven fabric is tensioned to assist printing.

[0041] The driving mechanism 3 includes a slider 31, one end of which is linked to the screen mechanism 2, and the other end is linked to a belt 32, the belt 32 is arranged along the printing direction and is linked to belt 32 wheels at both ends, a group of belt 32 wheels is linked to a main drive shaft 33, and the main drive shaft 33 is linked to a motor 34 installed on the support frame 1, and the driving mechanism 3 also includes a slide rail 35 arranged parallel to the belt 32 and installed on the support frame 1, and the slider 31 is slidably connected to the slide rail 35 under the drive of the belt 32. The motor 34 drives the main drive shaft 33 to rotate, and the main drive shaft 33 drives the belt 32 to move, and the slider 31 moves with the belt 32 (during this period, the slide rail 35 guides the slider 31 to move, and improves the sliding smoothness of the slider 31), and the screen mechanism 2 can move left and right, and cooperate to complete printing.

[0042] The screen mechanism 2 includes a screen frame 21 and a screen plate 22 arranged in the middle of the screen frame 21. A screen mounting frame 23 is arranged on the periphery of the screen frame 21. The screen mounting frame 23 is detachably connected to the screen frame 21. The screen mounting frame 23 is linked with the slider 31. The ink scraping assembly 4 is distributed above the screen plate 22. In the process of the ink scraping assembly 4 moving up and down to scrape ink, the screen plate 22 is elastic and under the pressure of the ink scraping assembly 4, the ink on the screen plate 22 will be printed on the non-woven fabric; further, the screen mounting frame 23 is used for the linkage between the screen frame 21 and the slider 31.

[0043] A vertical clamp 24 is provided between the screen mounting frame 23 and the screen frame 21. The vertical clamp 24 includes a flange base 241, a U-shaped pressure handle 242, and a straight base 243. The flange base 241 is fixedly mounted on the screen mounting frame 23. One end of the straight base 243 is hinged to the flange base 241, the middle is hinged to the middle of the U-shaped pressure handle 242, and the other end is in contact with the screen frame 21. The end of the U-shaped pressure handle 242 is hinged to the flange base 241. The screen frame 21 can be stably mounted on the screen mounting frame 23 and is easy to disassemble. The clamping and loosening actions can be quickly realized, thereby improving assembly efficiency.

[0044] The screen mechanism 2 further includes a plate separator 25, which is arranged parallel to the ink scraping assembly 4 and distributed in the middle of the screen frame 21. Due to the supporting function of the plate separator 25, each plate can be selectively printed according to actual conditions to ensure the printing quality and position accuracy of each plate.

[0045] The ink scraping assembly 4 includes an ink scraping blade 41, an ink return blade 42, an ink scraping mounting frame 43, and an ink feeding gun 44. The ink scraping mounting frame 43 is fixedly mounted on the support frame 1, and the ink feeding gun 44 is mounted in the middle of the ink scraping mounting frame 43. A group of electric push rods 46 are respectively linked at both ends of the ink scraping blade 41, and the electric push rods 46 are mounted on the ink scraping mounting frame 43. A group of cylinders 45 are respectively linked at both ends of the ink return blade 42, and the cylinders 45 are mounted on the ink scraping mounting frame 43. The cylinders 45 drive the ink return blade 42 to move up and down, and the electric push rods 46 drive the ink scraping blade 41 to move up and down. In cooperation with the reciprocating movement of the screen mechanism 2 and the support of the non-woven fabric by the printing roller 5, printing can be achieved; the ink feeding gun 44 is used to transport ink.

[0046] The auxiliary printing roller 7 is located on the side away from the printing cylinder 5 and is provided with a tracking electric eye assembly 8. The tracking electric eye assembly 8 includes a color mark sensor 81 and a sensor mounting frame 82. A connecting rod 83 is provided on the sensor mounting frame 82. The color change sensor is installed on the connecting rod 83. The sensor mounting frame 82 is linked with a handwheel shaft 84. A gear 85 is provided on the handwheel shaft 84. The gear 85 is meshed with a rack 86, and the rack 86 is installed on the support frame 1. The tracking electric eye assembly 8 is set to detect the position and movement state of the printed matter to ensure the accuracy and quality of printing. It can also be used to detect defects in printed matters, such as uneven color and position offset. If defects are detected, the printing parameters can be adjusted in time or the machine can be stopped for processing to avoid the production of defective products. Further, by rotating the handwheel shaft 84, the gear 85 can be driven to rotate. Since the gear 85 and the rack 86 are meshed, the position of the connecting rod 83 is changed, and the position of the tracking electric eye assembly 8 is adjusted.

[0047] Working principle: The non-woven fabric is distributed between the printing roller 5 and the screen mechanism 2. During printing, the printing roller 5 rotates under the drive of the power source component 6, and the non-woven fabric follows the printing roller 5 forward. At the same time, the screen mechanism 2 moves synchronously with the non-woven fabric under the drive mechanism 3. Since the ink scraping component 4 is distributed above the screen mechanism 2, the screen mechanism 2 moves with the non-woven fabric and cooperates with the printing roller 5 to achieve printing. After completing a single printing, the printing roller 5 can continue to rotate, and the screen mechanism 2 is reset under the drive mechanism 3 and moves to the initial position. Repeating the above operation can achieve continuous printing.

[0048] The printing device provided in this embodiment is designed with a printing roller 5, and the rotation of the printing roller 5 is controlled by a power source component 6, which can achieve the following technical effects: First, it is suitable for single-color, two-color or multi-color printing modes. During the printing process, the front color will not be stained on the screen mechanism 2. Since the parts of the screen mechanism 2 used for printing can undergo elastic deformation, the ink scraping component 4 will squeeze the parts of the screen mechanism 2 used for printing during the ink scraping process, so that the printing roller 5 cooperates with the ink scraping component 4 to print the positions on the non-woven fabric that need to be printed, while the places that do not need to be printed will not be colored because there are no supporting components underneath, thereby achieving single-color, two-color or multi-color printing modes. Second, it has good working continuity and high production efficiency. The non-woven fabric moves with the printing roller 5, and the screen mechanism 2 also moves with the non-woven fabric. The ink scraping assembly 4 moves up and down for printing. After a single processing is completed, the non-woven fabric continues to move forward, the printing roller 5 continues to rotate, and the screen mechanism 2 is reset under the drive of the driving mechanism 3 before the next printing, thereby achieving processing continuity and improving production efficiency. Third, the operation process is simplified and the operation complexity is reduced. There is no need to limit or release the non-woven fabric. Fourth, the stretching of the non-woven fabric during the printing process is reduced, and the printing is more uniform.

Claims

1. A printing device for a non-woven fabric screen printer, comprising a support frame, a screen mechanism and a driving mechanism linked to the screen mechanism are arranged on the support frame, and an ink scraping assembly mounted on the support frame is arranged above the screen mechanism, characterized in that: A printing roller is provided below the screen mechanism, and both ends of the printing roller are rotatably mounted on the frame and the ends of the printing roller are linked with a power source component, which can drive the printing roller to rotate; the driving mechanism can drive the screen mechanism to reciprocate along the printing direction.

2. The printing device for a nonwoven screen printer according to claim 1, characterized in that: An adjustable gap is arranged between the printing roller and the screen mechanism, and a printing layer is adhered to the outer periphery of the printing roller.

3. The printing device for a nonwoven screen printer according to claim 2, characterized in that: An auxiliary printing roller is arranged on the side of the printing cylinder, and the auxiliary printing roller is distributed below the screen mechanism.

4. The printing device for a nonwoven fabric screen printer according to any one of claims 1 to 3, characterized in that: The driving mechanism includes a slider, one end of which is linked to the screen mechanism and the other end is linked to a belt. The belt is arranged along the printing direction and is linked to pulleys at both ends. A group of pulleys is linked to a main driving shaft, and the main driving shaft is linked to a motor installed on a support frame. The driving mechanism also includes a slide rail arranged parallel to the belt and installed on the support frame. The slider is slidably connected to the slide rail under the drive of the belt.

5. The printing device for a nonwoven screen printer according to claim 4, characterized in that: The screen mechanism includes a screen frame and a screen plate arranged in the middle of the screen frame. A screen mounting frame is arranged on the periphery of the screen frame. The screen mounting frame is detachably connected to the screen frame. The screen mounting frame is linked to a slider. The ink scraping assembly is distributed above the screen plate.

6. The printing device for a nonwoven screen printer according to claim 5, characterized in that: A vertical clamp is provided between the screen mounting frame and the screen frame, and the vertical clamp includes a flange base, a U-shaped pressure handle, and a straight base. The flange base is fixedly installed on the screen mounting frame, one end of the straight base is hinged to the flange base, the middle part is hinged to the middle part of the U-shaped pressure handle, and the other end is connected to the screen frame in abutting manner, and the end of the U-shaped pressure handle is hinged to the flange base.

7. The printing device for a nonwoven screen printer according to claim 5, characterized in that: The screen mechanism also includes a screen separation component, which is arranged parallel to the ink scraping component and distributed in the middle of the screen frame.

8. The printing device for a nonwoven screen printer according to any one of claims 1 to 3, characterized in that: The ink scraping assembly includes an ink scraping blade, an ink returning blade, an ink scraping mounting frame, and an ink feeding gun. The ink scraping mounting frame is fixedly mounted on a supporting frame, the ink feeding gun is mounted in the middle of the ink scraping mounting frame, both ends of the ink scraping blade are respectively linked to a group of electric push rods, the electric push rods are mounted on the ink scraping mounting frame, and both ends of the ink returning blade are respectively linked to a group of cylinders, the cylinders are mounted on the ink scraping mounting frame.

9. The printing device for a nonwoven screen printer according to any one of claims 1 to 3, characterized in that: The support frame is provided with a tracking electric eye assembly, and the tracking electric eye assembly includes a color mark sensor and a sensor mounting frame. The sensor mounting frame is provided with a connecting rod, and the color mark sensor is mounted on the connecting rod. The sensor mounting frame is linked with a handwheel shaft, and the handwheel shaft is provided with a gear. The gear is meshed with a rack, and the rack is mounted on the support frame.

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