An automatic screen printing device for nonwoven fabric

Abstract

The utility model relates to the technical field of silk screen printing, concretely to an automatic non - woven fabric silk screen printing device, including conveying mechanism, one side of conveying mechanism is installed with drive mechanism, one side of drive mechanism is provided with printing mechanism, the below of printing mechanism is provided with silk screen, the inside of silk screen is provided with two symmetrical ink blocking mechanism, the both sides of printing mechanism are provided with symmetrical linkage vibration mechanism, the utility model discloses through setting up ink blocking mechanism, utilize the cooperation of softness cover and magnet, form the closed ink cavity between the ink scraping plate and the ink return plate, prevent the ink from escaping to both sides in the printing process, reduce the pollution of ink to silk screen invalid area, reduced the subsequent silk screen cleaning difficulty and workload, through setting up linkage vibration mechanism, in the printing mechanism movement process, utilize the knob to lift up the crank rod and drive the patting ball knock the trembler plate, make the ink even dispersion, improved the evenness and stability of printing quality.

Description

Technical Field

[0001] This utility model relates to the field of screen printing technology, specifically to an automatic screen printing device for non-woven fabrics. Background Technology

[0002] An automatic screen printing device for nonwoven fabrics is a specialized automated equipment used for printing patterns or text on the surface of nonwoven materials. This device typically consists of a nonwoven fabric unwinding system, an automatic conveying and positioning mechanism, a screen printing plate system, an ink squeegee and ink return mechanism, and a drying and curing unit. Its working principle involves continuously or intermittently feeding the nonwoven fabric material to the printing station via precise mechanical transmission. Utilizing the contact between the screen and the nonwoven fabric surface, the squeegee transfers ink through the mesh of the screen's image area onto the nonwoven fabric surface, forming the desired printed pattern. In existing nonwoven automatic screen printing devices, the squeegee and the return plate alternately fall and contact the screen to push the ink on the screen, thereby printing and returning ink. However, because there is a gap between the squeegee and the return plate and there are no obstructions on both sides, the ink will be scattered to both sides when they contact the screen and push the ink, which increases the contact area between the ink and the screen and makes it more difficult to clean the screen later. In addition, when the doctor blade and the return plate move down to contact the screen, the screen will deform, resulting in uneven dispersion of some ink.

[0003] Therefore, an automatic screen printing device for nonwoven fabrics is needed to improve the above problems. Utility Model Content

[0004] To address the problems in existing technologies, such as ink easily escaping to both sides during squeegee and ink return processes, leading to difficulties in screen cleaning, and the uneven ink dispersion caused by localized deformation of the screen when the squeegee and ink return plates are pressed down, this invention provides an automatic nonwoven screen printing device to solve the aforementioned problems.

[0005] To achieve the above objectives, this utility model provides the following technical solution: An automatic screen printing device for nonwoven fabrics includes a conveying mechanism, a driving mechanism mounted on one side of the conveying mechanism, a printing mechanism mounted on one side of the driving mechanism, a screen below the printing mechanism, two symmetrical ink-blocking mechanisms on the inner side of the screen, and symmetrical linkage vibration mechanisms on both sides of the printing mechanism. The driving mechanism includes a driving guide and two support plates fixedly connected to one side of the driving guide. Two horizontal plates are fixedly connected between the support plates, and uniformly distributed protrusions are fixedly connected above the horizontal plates. The printing mechanism includes a sliding frame and an ink return plate and a scraper plate below the sliding frame. Limiting sleeves are fixedly connected to both sides of the sliding frame. The linkage vibration mechanism includes two columns and limiting guide plates fixedly connected to the bottom of the columns. A vibrating plate is fixedly connected between the columns, and a rotating shaft is rotatably connected to one side of the vibrating plate. The ink-blocking mechanism includes a support crossbar and a flexible sleeve fixedly connected at the top and bottom.

[0006] Preferably, the column passes through the limiting sleeve, the bottom of the limiting guide plate is slidably connected to two symmetrical connecting parts, the upper part of the supporting crossbar is provided with a sliding groove, and part of the connecting parts is slidably connected inside the sliding groove.

[0007] Preferably, two hitting balls are fixedly connected to the lower part of the rotating shaft, the hitting balls are in contact with the vibration plate, and a crank rod is fixedly connected to one side of each end of the rotating shaft, the crank rod is engaged above the protrusion.

[0008] Preferably, a magnet is embedded inside the soft sleeve.

[0009] Preferably, two cylinders are installed above the sliding frame, and each cylinder's output end is mounted on a mounting bracket below the sliding frame.

[0010] Preferably, there is a gap between the ink return plate and the ink scraper, and the ink return plate and the ink scraper are respectively inserted into the lower part of their respective mounting brackets.

[0011] Preferably, a sliding seat is slidably connected above the drive guide, one end of the sliding frame is slidably connected to one side of the sliding seat, and an mounting clamp is installed below the support plate, which clamps the two ends of the wire mesh.

[0012] Preferably, the wire mesh consists of a frame and the wire mesh inside it.

[0013] Compared with the prior art, the beneficial effects of this utility model are: This invention, by setting up an ink-blocking mechanism, utilizes the cooperation of a soft sleeve and a magnet to form a sealed ink cavity between the squeegee and the ink return plate, preventing ink from escaping to both sides during the printing process, reducing ink contamination of ineffective areas of the screen, and lowering the difficulty and workload of subsequent screen cleaning.

[0014] This invention, by setting up a linkage vibration mechanism, utilizes a protrusion to lift the crank rod during the movement of the printing mechanism, causing the ball to strike the vibrating plate, generating vibration and transmitting it to the screen, promoting uniform ink dispersion, avoiding the problems of localized screen deformation and uneven ink distribution caused by the downward pressure of the squeegee or return plate, and improving the uniformity and stability of printing quality. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the drive mechanism and the cross plate structure of this utility model; Figure 3 This is a schematic diagram of the printing mechanism structure of this utility model; Figure 4 This is a schematic diagram of the linkage vibration mechanism of this utility model; Figure 5 This is a schematic diagram of the ink-blocking mechanism of this utility model.

[0016] In the picture: 1. Conveying mechanism; 2. Drive mechanism; 21. Drive guide; 22. Sliding seat; 23. Support plate; 24. Mounting clamp; 3. Wire mesh assembly; 4. Horizontal plate; 42. Protrusion; 5. Printing mechanism; 51. Sliding frame; 52. Limiting sleeve; 53. Cylinder; 54. Mounting frame; 55. Ink return plate; 56. Squeegee; 6. Linkage vibration mechanism; 61. Column; 62. Limiting guide plate; 63. Connecting part; 64. Vibration plate; 65. Rotating shaft; 66. Bounce ball; 67. Crank rod; 7. Ink blocking mechanism; 71. Soft sleeve; 72. Magnet; 73. Support crossbar; 74. Slide groove. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0018] Example: Please refer to Figure 1-5The automatic screen printing device for non-woven fabric shown includes a conveying mechanism 1, a driving mechanism 2 installed on one side of the conveying mechanism 1, a printing mechanism 5 arranged on one side of the driving mechanism 2, a screen 3 arranged below the printing mechanism 5, two symmetrical ink blocking mechanisms 7 arranged on the inner side of the screen 3, and symmetrical linkage vibration mechanisms 6 arranged on both sides of the printing mechanism 5. The drive mechanism 2 includes a drive guide 21 and two support plates 23 fixedly connected to one side of the drive guide 21. Two horizontal plates 4 are fixedly connected between the support plates 23, and evenly distributed protrusions 42 are fixedly connected above the horizontal plates 4. The printing mechanism 5 includes a sliding frame 51 and an ink return plate 55 and a scraper plate 56 below the sliding frame 51. Limit sleeves 52 are fixedly connected to both sides of the sliding frame 51. The linkage vibration mechanism 6 includes two columns 61 and a limiting guide plate 62 fixedly connected to the bottom of the columns 61. A vibrating plate 64 is fixedly connected between the columns 61, and a rotating shaft 65 is rotatably connected to one side of the vibrating plate 64. The ink blocking mechanism 7 includes a support crossbar 73 and a flexible sleeve 71 that are fixedly connected at the top and bottom; The conveying mechanism 1 is typically equipped with a nonwoven fabric unwinding system and an automatic conveying and positioning mechanism at both ends, which are used to unwind and rewind the nonwoven fabric and to position and convey the nonwoven fabric during the conveying process, respectively.

[0019] In this embodiment, the column 61 passes through the limiting sleeve 52, and the bottom of the limiting guide plate 62 is slidably connected to two symmetrical connecting parts 63. A groove 74 is provided above the supporting crossbar 73, and part of the connecting parts 63 is slidably connected inside the groove 74. Among them, the column 61 and the limiting guide plate 62 work together with the printing mechanism 5 to limit the height of the ink blocking mechanism 7. After the ink blocking mechanism 7 is embedded inside the screen 3, the adsorption of the magnet 72 will not affect the left and right movement of the linkage vibration mechanism 6. At the same time, the connecting piece 63 can also allow the staff to adjust the distance between the two ink blocking mechanisms 7 in real time.

[0020] In this embodiment, two slapping balls 66 are fixedly connected to the lower part of the rotating shaft 65. The slapping balls 66 are in contact with the vibration plate 64. A crank rod 67 is fixedly connected to one side of both ends of the rotating shaft 65. The crank rod 67 is fitted above the protrusion 42. When the linkage vibration mechanism 6 moves upward normally with the printing mechanism 5, the crank rod 67 and the protrusion 42 will no longer be in contact. When the linkage vibration mechanism 6 moves left and right with the printing mechanism 5, the protrusion 42 will continuously push up the crank rod 67, thereby allowing the patting ball 66 to pat the vibration plate 64; the patting ball 66 has a counterweight.

[0021] In this embodiment, a magnet 72 is embedded inside the soft sleeve 71; Among them, the soft sleeve 71 is soft, so it can deform with the screen 3, and both the soft sleeve 71 and the squeegee 56 are made of rubber.

[0022] In this embodiment, two cylinders 53 are installed above the sliding frame 51, and mounting brackets 54 are installed at the output ends of the cylinders 53 below the sliding frame 51. Among them, cylinder 53 is used to alternately drive the ink return plate 55 and the scraper plate 56 to move downward.

[0023] In this embodiment, there is a gap between the ink return plate 55 and the ink scraper plate 56, and the ink return plate 55 and the ink scraper plate 56 are respectively inserted into the underside of their respective mounting brackets 54. Ink can be poured between the ink return plate 55 and the ink scraper 56, and with the soft sleeve 71, the ink can be placed only in the perforated area of ​​the screen where ink can be dispensed.

[0024] In this embodiment, a sliding seat 22 is slidably connected above the drive guide 21, one end of the sliding frame 51 is slidably connected to one side of the sliding seat 22, and an mounting clamp 24 is installed below the support plate 23, which clamps the two ends of the wire mesh 3. Among them, a drive motor on one side of the drive guide 21 can drive the sliding seat 22 to slide, and a motor above the sliding seat 22 can drive the sliding frame 51 to move up and down; an electric cylinder above the support plate 23 can drive the mounting clamp 24 to move up and down, thereby controlling the height of the wire mesh 3 so as to replace the wire mesh 3; the mounting clamp 24 is used to install and fix the wire mesh 3.

[0025] In this embodiment, the wire mesh 3 is composed of a frame and the wire mesh inside it; Among them, the screen 3 has a perforated part so that ink can pass through, and the frame of the screen 3 is used to unfold the screen.

[0026] When this utility model is in operation, the conveying mechanism 1 is equipped with non-woven fabric feeding and receiving devices at both ends, allowing the non-woven fabric to pass over the conveying mechanism 1. Then, ink is introduced into the inner side of the screen 3. The controller on one side of the conveying mechanism 1 controls the operation of other equipment, so that the ink return plate 55 and the ink scraper 56 alternately contact the screen 3. At the same time, the sliding seat 22 moves with the sliding frame 51 to perform ink scraping printing and ink return operations. During the above process, the operation of the motor at the top of the sliding seat 22 causes the sliding frame 51 to move down, thereby allowing the soft sleeve 71 to contact the inner side of the screen 3 and cooperate with the magnet 72 to be attracted and positioned. Then, the position of the ink blocking mechanism 7 can be manually pushed so that one side of the magnet 72 can fit with the two ends of the ink return plate 55 and the ink scraper 56. This allows the two magnets 72 to form a sealed cavity with the gap between the printing mechanism 5 and the ink return plate 55, so that the ink only moves inside the cavity. This reduces the amount of ink that occupies the effective printing area during printing, thereby reducing the coverage of ineffective areas and reducing the difficulty and area of ​​subsequent cleaning. During the downward movement of the sliding frame 51, the crank rod 67 will rest on the top of the horizontal plate 4. When the motor on one side of the drive guide 21 drives the sliding seat 22 to move, thereby driving the printing mechanism 5 and the linkage vibration mechanism 6 to move, the crank rod 67 will be continuously pushed up by the protrusion 42, so that the hitting ball 66 can rotate around the pivot 65. However, since the hitting ball 66 has its own counterweight, it will continuously hit the vibrating plate 64, causing the vibrating plate 64 to vibrate. The vibration force is then transmitted to the ink return plate 55 and the support crossbar 73 through the limiting guide plate 62. This allows the ink return plate 55 to vibrate the screen 3 during the ink return time, so that the ink can be evenly dispersed. At the same time, the support crossbar 73 will also cause the magnet 72 to vibrate, so that the inner side of the magnet 72 can reduce the adhesion of ink.

[0027] The conveying mechanism 1, driving mechanism 2, and printing mechanism 5 used in this utility model are all existing known electrical devices, and all can be purchased and used directly on the market. Their structure, circuit, and control principle are all existing known technologies. Therefore, the structure, circuit, and control principle of the conveying mechanism 1, driving mechanism 2, and printing mechanism 5 will not be described in detail here.

[0028] All standard parts used in this application can be purchased from the market. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art and are also general components, which are common knowledge in this field.

[0029] 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 screen printing device for nonwoven fabrics, comprising a conveying mechanism (1), characterized in that: A drive mechanism (2) is installed on one side of the conveying mechanism (1), a printing mechanism (5) is provided on one side of the drive mechanism (2), a screen (3) is provided below the printing mechanism (5), two symmetrical ink blocking mechanisms (7) are provided on the inner side of the screen (3), and symmetrical linkage vibration mechanisms (6) are provided on both sides of the printing mechanism (5). The drive mechanism (2) includes a drive guide (21) and two support plates (23) fixedly connected to one side of the drive guide (21). Two horizontal plates (4) are fixedly connected between the support plates (23), and protrusions (42) are evenly distributed on the top of the horizontal plates (4). The printing mechanism (5) includes a sliding frame (51) and an ink return plate (55) and a scraper plate (56) below the sliding frame (51). Limit sleeves (52) are fixedly connected to both sides of the sliding frame (51). The linkage vibration mechanism (6) includes two columns (61) and a limiting guide plate (62) fixedly connected to the bottom of the columns (61). A vibrating plate (64) is fixedly connected between the columns (61), and a rotating shaft (65) is rotatably connected to one side of the vibrating plate (64). The ink blocking mechanism (7) includes a support crossbar (73) and a flexible sleeve (71) that are fixedly connected at the top and bottom.

2. The automatic screen printing device for nonwoven fabrics according to claim 1, characterized in that: The column (61) passes through the limiting sleeve (52), and the bottom of the limiting guide plate (62) is slidably connected to two symmetrical connecting parts (63). A groove (74) is provided above the supporting crossbar (73), and part of the connecting part (63) is slidably connected inside the groove (74).

3. The automatic screen printing device for nonwoven fabrics according to claim 1, characterized in that: Two slapping balls (66) are fixedly connected to the lower part of the rotating shaft (65). The slapping balls (66) are attached to the vibrating plate (64). A crank rod (67) is fixedly connected to one side of both ends of the rotating shaft (65). The crank rod (67) is fitted above the protrusion (42).

4. The automatic screen printing device for nonwoven fabrics according to claim 1, characterized in that: A magnet (72) is embedded inside the soft sleeve (71).

5. The automatic screen printing device for nonwoven fabrics according to claim 1, characterized in that: Two cylinders (53) are installed above the sliding frame (51), and the output ends of the cylinders (53) are located below the sliding frame (51) and each is equipped with a mounting bracket (54).

6. The automatic screen printing device for nonwoven fabrics according to claim 1, characterized in that: There is a gap between the ink return plate (55) and the ink scraper (56), and the ink return plate (55) and the ink scraper (56) are respectively inserted into the bottom of their respective mounting brackets (54).

7. The automatic screen printing device for nonwoven fabrics according to claim 1, characterized in that: A sliding seat (22) is slidably connected above the drive guide (21). One end of the sliding frame (51) is slidably connected to one side of the sliding seat (22). An installation clamp (24) is installed below the support plate (23). The installation clamp (24) engages the two ends of the wire mesh (3).

8. The automatic screen printing device for nonwoven fabrics according to claim 1, characterized in that: The wire mesh (3) consists of a frame and the wire mesh inside it.

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