Glue spraying device for printing roller

Abstract

The utility model relates to the technical field of glue spraying equipment, and provides a printing roller glue spraying device which comprises a rack, a glue feeding pipe, a glue tank, an air pipe and a spraying structure, the glue feeding pipe, the glue tank, the air pipe and the spraying structure are installed on the rack, the glue feeding pipe communicates with the glue tank, and one end of the air pipe is connected with an external pneumatic booster pump; the spraying structure comprises a connector, a fixing assembly, a rotating disc and a plurality of spray heads installed on the rotating disc, all the spray heads are arranged to be different in diameter, and the air pipe and the glue feeding pipe are both communicated with the connector; the rotating disc is rotationally installed on the rack and used for driving all the spray heads to be connected with the connectors, and the fixing assembly is used for fixing the rotating disc and the rack. According to the glue spraying device for the printing roller, the spraying range can be flexibly adjusted to meet the requirements of various printing rollers with different sizes.

Description

Technical Field

[0001] This application relates to the field of glue spraying equipment technology, and in particular to a glue spraying device for a printing roller. Background Technology

[0002] In the modern printing industry, to ensure high-quality printing results, printing rollers must undergo precise sensory adhesive spraying treatment before laser plate making. This process directly affects the quality of the printed products. As the market demands increasingly higher printing quality, achieving efficient and uniform sensory adhesive coating has become a key focus for the industry.

[0003] The existing technical solution is as follows: Most of the automatic spraying equipment widely used in the market is equipped with a fixed spray gun spraying range. In practical applications, although this design can meet the needs of printing rollers of specific sizes, it often leads to uneven spraying for printing rollers of different diameters. Specifically, when applied to printing rollers with smaller diameters, the fixed spraying area may cover too much area, resulting in some areas with excessively thick and uneven coatings; conversely, on printing rollers with larger diameters, the spray width may cause problems such as missing coatings or uneven thickness in some areas.

[0004] Therefore, a glue spraying device that can flexibly adjust the spraying range to adapt to various sizes of printing rollers is needed. Utility Model Content

[0005] In order to flexibly adjust the spraying range to meet the needs of printing rollers of various sizes, this application provides a printing roller adhesive spraying device.

[0006] The adhesive spraying device for printing rollers provided in this application adopts the following technical solution:

[0007] A glue spraying device for a printing roller includes a frame and a glue delivery pipe, a glue tank, an air pipe, and a spraying structure mounted on the frame. The glue delivery pipe is connected to the glue tank, and one end of the air pipe is connected to an external pneumatic booster pump. The spraying structure includes a connector, a fixing component, a rotating disk, and multiple nozzles mounted on the rotating disk. All nozzles are configured with different diameters. The air pipe and the glue delivery pipe are both connected to the connector. The rotating disk is rotatably mounted on the frame and is used to drive each nozzle to connect to the connector. The fixing component is used to fix the rotating disk and the frame.

[0008] By adopting the above technical solution, by setting multiple nozzles and setting the diameter of each nozzle to a different model, and by rotating the rotating disk to connect the nozzles of different diameters with the connector, the spraying range of the device can be adjusted to adapt to the printing rollers of different diameters, thereby maintaining the spraying quality of the printing rollers; and by setting a fixing component, the rotating disk can be fixed to the frame to maintain the stability of the nozzles during the spraying process.

[0009] Optionally, the fixing component includes an anti-detachment component and multiple plug-in blocks fixed to the side of the rotating disk near the frame. The frame is rotatably mounted with a rotating shaft, which is slidably connected to the rotating disk. The frame has multiple plug-in slots for the plug-in blocks to be inserted into. The anti-detachment component is used to keep the plug-in blocks normally inserted into the plug-in slots.

[0010] By adopting the above technical solution, inserting the plug into the plug slot can fix the rotating disk to the frame. Furthermore, the plug-in block and the plug slots of different diameters can be matched to make the nozzles and connectors of different diameters face each other, so as to achieve different spraying effects of the device.

[0011] Optionally, the number of the plug-in blocks is the same as the number of nozzles.

[0012] By adopting the above technical solution, and by setting the number of plug blocks to be the same as the number of nozzles, it can be ensured that the nozzles and connectors are aligned when the plug blocks are inserted into different plug slots, thereby improving the convenience of connecting the connectors and nozzles.

[0013] Optionally, the anti-detachment component includes multiple mounting plates hinged to the outer peripheral wall of the rotating disk and elastic blocks mounted on one side of the mounting plates, wherein the mounting plates are located between two adjacent nozzles; the frame is provided with elastic slots, and the elastic slots are respectively inserted and engaged with each elastic block.

[0014] By adopting the above technical solution, after rotating the rotating disk and inserting the plug into the plug slot, rotating the mounting plate causes the elastic locking block to be inserted into the elastic locking groove, which can fix the rotating disk and the frame and reduce the possibility of the plug detaching from the plug slot; and when the connector introduces the adhesive into the nozzle and the nozzle sprays out a mist of adhesive, the nozzle is forced to move away from the frame, which can make the elastic locking block press against the side of the elastic locking groove near the rotating disk, thereby increasing the stability of the elastic locking block inserted into the elastic locking groove.

[0015] Optionally, the mounting plate has a movable groove at the end away from the rotating disk, a movable plate is slidably installed in the movable groove, and the elastic block is installed on the movable plate; a first spring is provided between the movable plate and the inner wall of the movable groove, and the elastic force of the first spring is used to drive the movable plate to move toward one side of the movable groove.

[0016] By adopting the above technical solution, the movable plate is movably installed in the movable slot, and a spring is installed in the movable slot. When the elastic block is not inserted into the elastic slot, the spring force can drive the elastic block to move towards the side of the mounting plate, thereby reducing the length of the movable plate exposed in the movable slot and reducing the possibility of the movable plate colliding with the frame during the rotation of the rotating disk.

[0017] Optionally, a pull rod is provided on the side of the rotating disk away from the frame, and the outer peripheral wall of the pull rod is wrapped with a first rubber layer.

[0018] By adopting the above technical solution, pulling the lever allows the plug block to disengage from the plug slot, and rotating the lever allows the rotating disk to rotate; the first rubber layer increases the friction between the worker's hand and the lever, thus facilitating the rotation of the rotating disk.

[0019] Optionally, a connector is provided on one side of the nozzle, which is used to be inserted into the connector.

[0020] By adopting the above technical solution, when the plug block is disengaged from the plug slot, the plug tube is disengaged from the connector tube; and during the process of the plug block being inserted into the plug slot, the nozzle, which is directly opposite the connector, moves toward the connector and inserts the plug tube into the connector.

[0021] Optionally, the outer peripheral wall of the insertion tube is provided with a second rubber layer.

[0022] By adopting the above technical solution and setting a second rubber layer, the sealing between the nozzle and the connector can be increased, reducing material leakage during the spraying process and maintaining the spraying quality.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. By setting multiple nozzles and setting the diameter of each nozzle to a different model, and by rotating the rotating disk to connect the nozzles of different diameters with the connector, the spraying range of the device can be adjusted to adapt to the printing rollers of different diameters, thereby maintaining the spraying quality of the device on the printing rollers.

[0025] 2. By setting the number of connector blocks to be the same as the number of nozzles, it can be ensured that the nozzles and connectors are aligned when the connector blocks are inserted into different connector slots, thereby improving the convenience of connecting the connectors and nozzles. Attached Figure Description

[0026] Figure 1 This is a structural schematic diagram of this embodiment;

[0027] Figure 2 This is a partial sectional view of this embodiment;

[0028] Figure 3 yes Figure 1 A partial view of point a.

[0029] Explanation of reference numerals in the attached drawings: 1. Frame; 11. Rotating shaft; 12. Positioning block; 13. Insertion slot; 14. Elastic retaining slot; 2. Glue delivery hose; 3. Glue tank; 4. Air hose; 5. Spraying structure; 6. Connector; 7. Flow valve; 8. Fixing component; 81. Insertion block; 82. Anti-detachment component; 83. Mounting plate; 84. Movable plate; 85. Elastic retaining block; 86. Movable groove; 9. Rotating disc; 91. Mounting groove; 92. Positioning groove; 93. Pull rod; 94. First rubber layer; 10. Spray head; 101. Insertion pipe; 102. Second rubber layer. Detailed Implementation

[0030] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0031] This application discloses a glue spraying device for printing rollers.

[0032] Reference Figure 1 A glue spraying device for a printing roller includes a frame 1 and a glue delivery pipe 2, a glue tank 3, an air pipe 4, and a spraying structure 5 installed on the frame 1. The two ends of the air pipe 4 are respectively connected to an external pneumatic booster pump and the spraying structure 5, and are used to adjust the air pressure in the air pipe 4. The two ends of the glue delivery pipe 2 are respectively connected to the glue tank 3 and the spraying structure 5, and the glue delivery pipe 2 is used to transport the glue to the spraying structure 5.

[0033] In this embodiment, the glue delivery pipe 2 is connected to the bottom of the glue tank 3; the glue in the glue tank 3 flows into the glue delivery pipe 2 by gravity; at the same time, the external pneumatic booster pump assists in pressurizing the glue flowing into the spraying structure 5 through the air pipe 4, which helps the spraying structure 5 to atomize and spray the glue to coat the printing roller.

[0034] The spraying structure 5 includes a connector 6, a flow valve 7, a fixing component 8, a rotating disk 9, and multiple spray nozzles 10. The air pipe 4 and the glue delivery pipe 2 are both connected to the flow valve 7. The connector 6 is connected to the flow valve 7 and is installed on the frame 1. The frame 1 is rotatably mounted with a rotating shaft 11. The rotating disk 9 has a mounting groove 91 for the rotating shaft 11 to be inserted into. The outer wall of the rotating shaft 11 is provided with a positioning block 12. The inner wall of the mounting groove 91 has a positioning groove 92 for the positioning block 12 to slide. The extension direction of the positioning groove 92 is the same as the extension direction of the rotating shaft 11.

[0035] All nozzles 10 have different diameters. All nozzles 10 are mounted on the rotating disk 9 and spaced apart around the axis of the rotating disk 9. Each nozzle 10 is used to connect to the connector 6.

[0036] Reference Figure 2 In this embodiment, a connector 101 is provided on the side of the nozzle 10 near the connector 6. The connector 101 is used to insert into the connector 6. The outer peripheral wall of the connector 101 is wrapped with a second rubber layer 102. When the connector 101 is inserted into the connector 6, the second rubber layer 102 abuts against the inner peripheral wall of the connector 6, thereby increasing the sealing between the connector 6 and the nozzle 10, reducing the leakage of material during the spraying process, and maintaining the spraying quality.

[0037] The fixing component 8 includes an anti-detachment component 82 and multiple plug-in blocks 81. All plug-in blocks 81 are fixed to the side of the rotating disk 9 near the frame 1 and are spaced apart around the axis of the rotating disk 9. The frame 1 has multiple plug-in slots 13 that are respectively plugged into and cooperate with each plug-in block 81.

[0038] Reference Figure 1 In this embodiment, the number of plug-in blocks 81 is the same as the number of nozzles 10, and the distance between two adjacent plug-in blocks 81 is the same as the distance between two adjacent nozzles 10; thus, it can be ensured that the nozzles 10 and the connectors 6 are aligned during the process of plugging the plug-in blocks 81 into different plug-in slots 13, thereby improving the convenience of connecting the connectors 6 and the nozzles 10.

[0039] Reference Figure 2 A pull rod 93 is provided on the side of the rotating disk 9 away from the frame 1. Pulling the pull rod 93 can disengage the plug block 81 from the plug slot 13 and the plug tube 101 from the connector 6. A first rubber layer 94 is provided on the outer wall of the pull rod 93. The first rubber layer 94 can increase the friction between the operator's hand and the pull rod 93 to facilitate the rotation of the rotating disk 9.

[0040] Reference Figure 3 The anti-detachment component 82 includes multiple mounting plates 83, multiple movable plates 84, and multiple elastic locking blocks 85. All mounting plates 83 are hinged to the outer peripheral wall of the rotating disk 9. The mounting plates 83 are located between two adjacent nozzles 10. The end of the mounting plate 83 away from the rotating disk 9 is used to rotate toward one side of the frame 1 and abut against the outer wall of the frame 1.

[0041] A movable groove 86 is provided on the side of the mounting plate 83 away from the rotating disk 9. A movable plate 84 is slidably installed in the movable groove 86, and the sliding direction of the movable plate 84 is in the same direction as the extension direction of the movable groove 86. A spring (not shown in the figure) is provided between the movable plate 84 and the inner wall of the movable groove 86. The spring force is used to force the movable plate 84 to move closer to the side of the mounting plate 83, so as to reduce the length of the movable plate 84 exposed in the movable groove 86. This ensures that the length of the movable plate 84 exposed in the movable groove 86 and the mounting plate 83 is less than the thickness of the rotating disk 9, in order to maintain the smoothness of the rotation of the rotating disk 9. 87

[0042] The elastic locking block 85 is fixed to the side wall of the movable plate 84. The elastic locking block is made of rubber material. The frame 1 has an elastic locking groove 14, which is used to insert and cooperate with multiple elastic locking blocks 85. After the rotating disk 9 is rotated and the nozzle 10 is replaced, the movable plate 84 is pulled out from the movable groove 86 and the mounting plate 83 is folded over, so that the elastic locking block 85 is inserted into the elastic locking groove 14 by interference fit. This can fix the position of the rotating disk 9, reduce the possibility of the rotating disk 9 rotating freely, and reduce the possibility of the insertion block 81 dislodging from the insertion groove 13.

[0043] Furthermore, when the connector 6 introduces the adhesive into the nozzle 10 and the nozzle 10 sprays out a mist of adhesive, the nozzle 10 is forced to move away from the frame 1, thereby enabling the elastic block 85 to press against the side of the elastic slot 14 near the rotating disk 9, thereby increasing the stability of the elastic block 85 inserted into the elastic slot 14.

[0044] The implementation principle of the glue spraying device for a printing roller in this application embodiment is as follows:

[0045] By setting multiple nozzles 10 and setting the diameter of each nozzle 10 to a different model, and by rotating the rotating disk 9 to connect the nozzles 10 of different diameters to the connector 6, the spraying range of the device can be adjusted to adapt to the printing rollers of different diameters, thereby maintaining the spraying quality of the printing rollers. Furthermore, the insertion block 81 is engaged with different insertion slots 13, and the elastic locking block 85 is engaged with the elastic locking slot 14, which can fix the rotating disk 9 to the frame 1 and maintain the stability of the nozzles 10 during the spraying process.

[0046] The above are preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made to the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A glue spraying device for a plate cylinder, characterized in that: The utility model provides a spraying structure, including frame (1) and install in frame (1) glue pipe (2), glue tank (3), air pipe (4) and spraying structure (5), glue pipe (2) with glue tank (3) intercommunication, air pipe (4) one end is connected with the external pneumatic booster pump, spraying structure (5) includes connecting head (6), fixed assembly (8), rotary disc (9) and install in a plurality of spray head (10) of rotary disc (9), all spray head (10) are set up as different diameter, air pipe (4) and glue pipe (2) all with connecting head (6) intercommunication, rotary disc (9) rotation is installed in frame (1), rotary disc (9) is used to drive each spray head (10) respectively with connecting head (6) is connected, and fixed assembly (8) is used for making rotary disc (9) and frame (1) fixed.

2. The glue spraying device for plate roller according to claim 1, characterized in that: The fixed assembly (8) includes a plurality of insertion blocks (81) and a plurality of insertion blocks (81) are fixed to the rotary disc (9) near the frame (1), the frame (1) is rotatably installed with a rotating shaft (11), and the rotating shaft (11) is in sliding connection with the rotary disc (9); the frame (1) is provided with a plurality of insertion grooves (13) for inserting the insertion blocks (81), and the anti-dropping piece (82) is used to keep the insertion blocks (81) normally inserted into the insertion grooves (13).

3. The glue spraying device for plate roller as claimed in claim 2 wherein: The number of the insertion blocks (81) is the same as the number of the spray heads (10).

4. The plate roll glue spraying device according to claim 2, characterized in that: The anti-dropping piece (82) includes a plurality of mounting plates (83) hinged to the outer peripheral wall of the rotary disc (9) and a plurality of elastic clamping blocks (85) mounted on one side of the mounting plates (83), the mounting plates (83) are located between the adjacent two spray heads (10), and the frame (1) is provided with elastic clamping grooves (14) respectively in sliding connection with the elastic clamping blocks (85).

5. A glue spraying device for a plate cylinder according to claim 4, characterized in that The end of the mounting plate (83) away from the rotary disc (9) is provided with a movable slot (86), the movable slot (86) is slidably installed with a movable plate (84), and the elastic clamping block (85) is mounted on the movable plate (84); a first spring is arranged between the movable plate (84) and the inner wall of the movable slot (86), and the elastic force of the first spring is used to drive the movable plate (84) to move towards one side of the movable slot (86).

6. The glue spraying device for plate roller as claimed in claim 2 wherein: The side of the spray head (10) is provided with an insertion pipe (101), and the insertion pipe (101) is used for inserting into the connecting head (6).

7. The glue spraying device for plate roller as claimed in claim 2 wherein: The outer peripheral wall of the insertion pipe (101) is provided with a second rubber layer (102).

8. The glue spraying device for plate cylinder according to claim 7, characterized in that: ​

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