Switchable shower system in a substrate printer

Abstract

The application discloses a switchable spraying system in a substrate printing machine and relates to the field of substrate printing equipment. Technical scheme points of the application include a switchable spraying system which is used for spraying cleaning solvent on a screen frame; the switchable spraying system comprises a spraying mechanism; the spraying mechanism comprises a plurality of spraying pipes which are matched with a plurality of screen frames of different specifications respectively; the spraying mechanism is provided with a spraying position and an idle position; the plurality of spraying pipes can be switched to the spraying position respectively, and when one of the spraying pipes is located at the spraying position, the rest of the spraying pipes are located at the idle position. When the substrate printing machine replaces the screen frame, only the corresponding spraying pipe needs to be switched to the spraying position, and thus the operation is convenient; moreover, the pipe of the spraying pipe does not need to be disassembled during switching, and thus the risk of liquid leakage caused by disassembly can be avoided.

Description

Technical Field

[0001] This invention relates to the field of substrate printing equipment, and more specifically, to a switchable spray system in a substrate printing machine. Background Technology

[0002] After printing is completed, the screen frame of the substrate printing machine needs to be cleaned. During cleaning, cleaning solvent needs to be sprayed onto the screen frame through a spray pipe.

[0003] Substrate printing machines are suitable for printing on substrates of different specifications, which requires the installation of screen frames of different specifications. The spray pipes are matched with the screen frames, so after changing the screen frames, the original spray pipes also need to be removed and replaced with new spray pipes.

[0004] However, replacing the spray pipe is not only cumbersome, but also carries the risk of leakage due to improper operation. Summary of the Invention

[0005] To address the shortcomings of existing technologies, the present invention aims to provide a switchable spray system for a substrate printing machine. When the screen frame of the substrate printing machine is changed, only the corresponding spray pipe needs to be switched to the spray position, which is convenient to operate. Moreover, the spray pipe pipeline does not need to be disassembled during switching, thereby avoiding the risk of leakage caused by disassembly.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A switchable spray system for a substrate printing machine, wherein a screen frame is provided inside the substrate printing machine, and the switchable spray system is used to spray cleaning solvent onto the screen frame; The switchable spray system includes a spray mechanism; the spray mechanism includes multiple spray pipes, and the multiple spray pipes are respectively matched with multiple wire frames of different specifications; The spraying mechanism is provided with a spraying position and an idle position; the multiple spray pipes can be switched to the spraying position respectively, and when one of the spray pipes is in the spraying position, the other spray pipes are in the idle position.

[0007] Furthermore, the multiple spray pipes are arranged circumferentially.

[0008] Furthermore, the spraying mechanism also includes a fixed bracket and a deflection support plate, with a rotating shaft provided between the deflection support plate and the fixed bracket; the spray pipes pass through the deflection support plate, and a plurality of the spray pipes are arranged circumferentially around the rotating shaft on the deflection support plate.

[0009] Furthermore, the fixed bracket is provided with limiting arc grooves that cooperate with the multiple spray pipes.

[0010] Furthermore, the fixed bracket is provided with a locking mechanism that cooperates with the deflection support plate.

[0011] Furthermore, the locking mechanism corresponds to the spray position.

[0012] Furthermore, the side wall of the deflection support plate is provided with a plurality of locking holes that respectively cooperate with the spray pipe; the locking mechanism includes an elastic plunger that cooperates with the locking hole; or, the locking mechanism includes an elastic pull pin that cooperates with the locking hole; or, the locking mechanism includes an electric locking tongue that cooperates with the locking hole.

[0013] Furthermore, a deflection handle is provided on the deflection support plate; or, a deflection drive mechanism that cooperates with the deflection support plate is provided on the fixed bracket.

[0014] Furthermore, the spray pipe is provided with a plurality of spray holes arranged along the axial direction; the axial arrangement of the spray holes of any one of the spray pipes is different from the axial arrangement of the spray holes of the other spray pipes.

[0015] Furthermore, the switchable spray system also includes a liquid supply mechanism; the liquid supply mechanism includes a liquid storage tank, a liquid supply pump connected to the liquid storage tank, a one-way valve connected to the liquid supply pump, and spray valves respectively connected to multiple spray pipes; the multiple spray valves are all connected to the one-way valves.

[0016] In summary, the present invention has the following beneficial effects: 1. When changing the screen frame of the substrate printing machine, you only need to switch the corresponding spray pipe to the spray position, which is convenient to operate; moreover, there is no need to disassemble the spray pipe during the switching, thus avoiding the risk of leakage caused by disassembly. 2. A deflection support plate is used to support the two spray pipes. The two spray pipes can be switched by rotating the deflection support plate. This can optimize the size, save space and facilitate the layout. 3. The limiting arc groove serves both to allow for movement and to limit movement, thereby improving the stability of the spray pipe. 4. The use of an elastic pull pin as the locking mechanism has the advantages of simple structure, good stability, low cost, and convenient operation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the switchable spray system in the substrate printing machine of the embodiment. Figure 1 ; Figure 2 This is a schematic diagram of the switchable spray system in the substrate printing machine of the embodiment. Figure 2 ; Figure 3 This is a schematic diagram of the switchable spray system in the embodiment. Figure 1 ; Figure 4 This is a schematic diagram of the spray pipe structure in the embodiment; Figure 5 This is a schematic diagram of the spray mechanism in the embodiment. Figure 1 ; Figure 6 This is a schematic diagram of the spray mechanism in the embodiment. Figure 2 ; Figure 7 This is a schematic diagram of the spray mechanism in the embodiment. Figure 3 ; Figure 8 This is a schematic diagram of the deflection support plate in the embodiment; Figure 9 This is a schematic diagram of the liquid supply mechanism in the embodiment.

[0018] In the diagram: 1. Substrate printing machine; 2. Spraying mechanism; 21. Spray pipe; 211. Spray hole; 22. Deflection support plate; 221. Fixing hole; 222. Fastening screw; 223. Locking hole; 23. Rotating shaft; 24. Fixing plate; 241. Limiting arc groove; 25. Fixing rod; 251. Extension bracket; 26. Elastic pull pin; 27. Deflection handle; 3. Liquid supply mechanism; 31. Liquid storage tank; 32. Liquid supply pump; 33. Check valve; 34. Spray valve; 4. Frame. Detailed Implementation

[0019] The present invention will be further described in detail below with reference to the accompanying drawings.

[0020] This specific embodiment is merely an explanation of the present invention and is not intended to limit the invention. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention. Example

[0021] A switchable spray system in a substrate printing machine, as described above. Figures 1 to 9 The substrate printing machine 1 is equipped with a screen frame 4, and a switchable spray system is used to spray cleaning solvent onto the screen frame 4. In this embodiment, the switchable spray system includes a spray mechanism 2 and a liquid supply mechanism 3. The spray mechanism 2 includes multiple spray pipes 21, which are respectively matched with multiple screen frames 4 of different specifications. Specifically, in this embodiment, the spray mechanism 2 includes two spray pipes 21, which are used to match two types of screen frames 4. Of course, in other optional embodiments, the number of spray pipes can be increased as needed, which is not limited here.

[0022] Reference Figures 1 to 9The spray mechanism 2 is provided with a spray position and an idle position; multiple spray pipes 21 can be switched to the spray position respectively. When one spray pipe 21 is in the spray position, the other spray pipes 21 are in the idle position. Specifically, in this embodiment, the spray mechanism 2 is provided with one spray position and two idle positions, with the spray position located between the two idle positions; when one spray pipe 21 is in the spray position, the other spray pipe 21 is in its corresponding idle position; when the other spray pipe 21 is in the spray position, one of its spray pipes 21 is in its corresponding idle position; the spray pipes 21 are provided with multiple axial... The spray holes 211 are arranged in a specific direction. The axial arrangement of the spray holes 211 on any one spray pipe 21 is different from that on the other spray pipes 21. That is, in this embodiment, the axial arrangement of the spray holes 211 on the two spray pipes 21 is different, so as to match two different specifications of mesh frames respectively. The axial arrangement of the spray holes includes the distance between two spray holes located at the end and the distance between adjacent spray holes. That is, the distance between two spray holes 211 located at the end of the spray pipe 21 needs to be less than the width of the mesh frame 4 to avoid spraying the cleaning solvent outside the mesh frame.

[0023] Reference Figures 1 to 9 When the substrate printing machine 1 changes the screen frame 4, it is only necessary to switch the corresponding spray pipe 21 to the spray position, which is convenient to operate; moreover, there is no need to disassemble the pipeline of the spray pipe 21 during the switching, thereby avoiding the risk of leakage caused by disassembly.

[0024] Reference Figures 1 to 9 Preferably, multiple spray pipes 21 are arranged circumferentially for easy arrangement and switching. Specifically, in this embodiment, the spray mechanism 2 further includes a fixed bracket and two deflection support plates 22. The fixed bracket includes two fixed plates 24 and a fixed rod 25 disposed between the two fixed plates 24. The two deflection support plates 22 are respectively connected to the two fixed plates 24. A rotating shaft 23 is provided between the deflection support plate 22 and the fixed plate 24, so that the deflection support plate 22 can deflect around the rotating shaft 23. The spray pipes 21 pass through the deflection support plates 22, and the two spray pipes 21 are arranged circumferentially on the deflection support plates 22 around the rotating shaft 23. When one of the spray pipes 21 is in the spraying position, the two sides of the spray pipe 21 are respectively in the idle position; the other spray pipe 21 is above the spray pipe 21 and is in the idle position; when the deflection support plate 22 is deflected downward around the rotation axis 23, the spray pipe 21 that was originally in the spraying position rotates downward to the idle position, and the spray pipe 21 that was originally in the idle position rotates downward to the spraying position; therefore, in this embodiment, the deflection support plate 22 is used to support the two spray pipes 21, and the two spray pipes 21 are switched by rotating the deflection support plate 22, which can optimize the size, save space and facilitate the arrangement.

[0025] Reference Figures 1 to 9 Specifically, the deflection support plate 22 is provided with a fixing hole 221 that mates with the spray pipe 21, and the side wall of the deflection support plate 22 is provided with a fastening screw 222 that communicates with the fixing hole 221. The spray pipe 21 is passed through the fixing hole 221, and then the fastening screw 222 is tightened until it contacts the spray pipe 21, thus fixing the spray pipe 21 and fixing the orientation of the spray hole 211. This makes it easy to install the spray pipe 21, and the stability of the spray pipe 21 is good. Of course, in other optional embodiments, the spray pipe and the deflection support plate can also be fixedly connected in other ways, which is not limited here.

[0026] Reference Figures 1 to 9 Preferably, the fixing plate 24 is provided with a limiting arc groove 241 that cooperates with multiple spray pipes 21; one end of the spray pipe 21 is embedded in the limiting arc groove 241, and the other end passes through the limiting arc groove 241; then, the limiting arc groove 241 plays a role in making way on the one hand and limiting on the other hand, which can improve the stability of the spray pipe 21.

[0027] Reference Figures 1 to 9 In this embodiment, the fixing rod 25 is provided with a locking mechanism that cooperates with the deflection support plate 22, and the locking mechanism corresponds to the spraying position, thereby facilitating the identification of the spraying position. Specifically, the side wall of the deflection support plate 22 is provided with two locking holes 223 that respectively cooperate with the spray pipe 21; the bottom wall of the fixing rod 25 is provided with an extension bracket 251, and the locking mechanism includes an elastic pull pin 26 provided on the extension bracket 251, which cooperates with the locking hole 223. Specifically, under the elastic force of the elastic pull pin 26, the end of the elastic pull pin 26 is embedded in the locking hole 223, so that the deflection support plate 22 is kept in the locked state, thereby enabling the cleaning solvent to be sprayed onto the mesh frame. When it is necessary to switch the spray pipe 21, the elastic pull pin 26 is pulled outward, so that the end of the elastic pull pin 26 disengages from the locking hole 223, thereby allowing the deflection support plate 22 to be rotated to switch the spray pipe 21. After the switch is completed, the elastic pull pin 26 is released, and the end of the elastic pull pin 26 is embedded into the locking hole 223 under the action of elastic force, thus re-locking the deflection support plate 22. In this embodiment, the elastic pull pin 26 is used as the locking mechanism, which has the advantages of simple structure, good stability, low cost, and convenient operation. Of course, in other optional embodiments, the locking mechanism can also adopt other structures, such as elastic plungers or electric locking tongues, etc., which are not limited here.

[0028] Reference Figures 1 to 9 Preferably, the deflection support plate 22 is provided with a deflection handle 27, so as to facilitate the operation of the deflection support plate 22 for deflection; of course, in other optional embodiments, a deflection drive mechanism that cooperates with the deflection support plate can also be provided on the fixed bracket to realize automatic control, which is not limited here.

[0029] Reference Figures 1 to 9 Specifically, in this embodiment, the liquid supply mechanism includes a liquid storage tank 31, a liquid supply pump 32 connected to the liquid storage tank 31, a one-way valve 33 connected to the liquid supply pump 32, and spray valves 34 connected to multiple spray pipes 21 respectively; multiple spray valves 34 are all connected to the one-way valve 33; after switching the spray pipe 21 in the spray mechanism 2, the corresponding spray valve 34 is opened, and the other spray valve 34 is closed; that is to say, after switching the spray pipe 21 in the spray mechanism 2, the spray valves 34 in the liquid supply mechanism 3 also need to be switched.

Claims

1. A switchable spray system in a substrate printing machine, characterized in that: The substrate printing machine is equipped with a screen frame, and the switchable spray system is used to spray cleaning solvent onto the screen frame; The switchable spray system includes a spray mechanism; the spray mechanism includes multiple spray pipes, and the multiple spray pipes are respectively matched with multiple wire frames of different specifications; The spraying mechanism is provided with a spraying position and an idle position; the multiple spray pipes can be switched to the spraying position respectively, and when one of the spray pipes is in the spraying position, the other spray pipes are in the idle position; The spraying mechanism also includes a fixed bracket and a deflection support plate, and a rotating shaft is provided between the deflection support plate and the fixed bracket; the spray pipes pass through the deflection support plate, and a plurality of the spray pipes are arranged circumferentially around the rotating shaft on the deflection support plate.

2. The switchable spray system in the substrate printing machine according to claim 1, characterized in that: The fixed bracket is provided with limiting arc grooves that cooperate with the multiple spray pipes.

3. The switchable spray system in the substrate printing machine according to claim 1, characterized in that: The fixed bracket is equipped with a locking mechanism that cooperates with the deflection support plate.

4. The switchable spray system in the substrate printing machine according to claim 3, characterized in that: The locking mechanism corresponds to the spray position.

5. The switchable spray system in the substrate printing machine according to claim 3, characterized in that: The side wall of the deflection support plate is provided with a plurality of locking holes that respectively cooperate with the spray pipe; the locking mechanism includes an elastic plunger that cooperates with the locking hole; or, the locking mechanism includes an elastic pull pin that cooperates with the locking hole; or, the locking mechanism includes an electric locking tongue that cooperates with the locking hole.

6. The switchable spray system in the substrate printing machine according to claim 2, characterized in that: The deflection support plate is provided with a deflection handle; or, the fixed bracket is provided with a deflection drive mechanism that cooperates with the deflection support plate.

7. The switchable spray system in the substrate printing machine according to claim 1, characterized in that: The spray pipe is provided with a plurality of spray holes arranged along the axial direction; the axial arrangement of the spray holes of any one of the spray pipes is different from the axial arrangement of the spray holes of the other spray pipes.

8. The switchable spray system in the substrate printing machine according to claim 1, characterized in that: The switchable spray system further includes a liquid supply mechanism; the liquid supply mechanism includes a liquid storage tank, a liquid supply pump connected to the liquid storage tank, a one-way valve connected to the liquid supply pump, and spray valves connected to multiple spray pipes respectively; the multiple spray valves are all connected to the one-way valve.

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