Printing ink cleaning equipment for circuit board screen printing plate

Abstract

The invention provides a cleaning device, and relates to a circuit board screen printing plate ink cleaning device which comprises a cleaning frame. The stepped supporting blocks are mounted on the two sides in the cleaning frame; the racks are mounted on the two sides of the interior of the cleaning frame and are perpendicular to the stepped supporting blocks; the guide rod is fixedly mounted on the rack; the two ends of the mounting frame are connected with connecting pieces, and the mounting frame is slidably connected to the guide rods through the connecting pieces; the crankshaft is rotationally mounted in the mounting frame; the gear is rotationally arranged on the connecting piece and connected with the crankshaft, and the gear is meshed with the rack; the multiple movable wiping pieces are arranged side by side, and the movable wiping pieces are movably arranged in movable notches formed in the top of the mounting frame in a penetrating mode. The mounting frame is pushed to move, so that the gear drives the crankshaft to rotate, the crankshaft drives the multiple movable wiping pieces to reciprocate, and in the process, the movable wiping pieces can continuously wipe and clean the screen plate.

Description

Technical Field

[0001] The invention relates to a cleaning device, in particular to a circuit board silk screen printing plate ink cleaning device. Background Art

[0002] In the later stage of processing, the circuit board needs to be printed with the specification information of the circuit board on the board surface by silk screen printing. During printing, the circuit board is transmitted one by one to the bottom of the screen through a transmission device, and ink is poured on the screen. After the screen moves down and fits on the board surface, the ink on the screen is scraped by a scraper, and finally the ink is transferred to the board surface. There is a fixed time limit for the use of ink, so the ink needs to be replaced in time after the time is exceeded. In order to avoid the old ink remaining on the screen from mixing with the new ink, the ink remaining on the screen also needs to be cleaned when the ink is replaced. Summary of the invention

[0003] The present invention aims to solve the technical problems existing in the above-mentioned prior art. To this end, the present invention provides a circuit board screen printing plate ink cleaning device.

[0004] To achieve the above-mentioned purpose, the present invention provides such a circuit board screen printing plate ink cleaning device, comprising: a cleaning frame; a step support block, which is installed on both sides of the cleaning frame; a rack, which is installed on both sides of the cleaning frame and is perpendicular to the step support block; a guide rod, which is fixedly installed on the rack; a mounting frame, which is connected to connecting pieces at both ends and is slidably connected to the guide rod through the connecting piece; a crankshaft, which is rotatably installed in the mounting frame; a gear, which is rotatably arranged on the connecting piece and connected to the crankshaft, and the gear is meshed with the rack; a movable wiping member , a plurality of them are arranged side by side, the movable wiping piece is movably inserted into the movable notch opened at the top of the mounting frame, the movable wiping piece is connected to the crankshaft, limited movable openings are opened on the mounting frame on both sides of the movable notch, and connecting bolts pass through the limited movable openings and are connected to the movable wiping piece; the mesh plate is placed on the step support block, the mesh surface of the mesh plate is in contact with the top of the movable wiping piece, pushing the mounting frame to move along the guide rod, the gear drives the crankshaft to rotate, and then the adjacent movable wiping pieces are displaced and moved back and forth on the mounting frame.

[0005] As a further improvement of the solution, it also includes: a limiting strip extending outward from both sides of the step support block to form an angle structure to limit the mesh plate.

[0006] As a further improvement of the scheme, it also includes: a holding connecting frame, one end of which is connected to the connecting piece on one side by a hinge, and the other end of the holding connecting frame is movably connected to the connecting piece on the other side by a limiting bolt; two rollers are symmetrically provided, both of which are rotatably arranged on the holding connecting frame; after the mesh plate is placed on the step support block, the holding connecting frame is connected by the limiting bolt, so that the mesh plate is clamped by the movable wiping member and the roller.

[0007] As a further improvement of the scheme, it also includes: side mounting frames, mounted on the side walls on both sides of the mounting frame; flat nozzles, evenly spaced and mounted on the side mounting frames, with nozzles of the flat nozzles tilted toward the top edge of the movable wiping member.

[0008] As a further improvement of the scheme, the movable wiping member includes: a T-shaped block, which is movably inserted into a movable notch opened at the top of the mounting frame; an intermediate plate, a latch is provided at the bottom of which, and the intermediate plate is detachably mounted on the top of the T-shaped block through the latch; and a wiping block, which is mounted on the top of the intermediate plate for contacting the mesh plate.

[0009] As a further improvement of the scheme, it also includes: a liquid supply channel extending inward from the side wall of the T-block and leading to the top of the T-block; a liquid injection pipe connected to the liquid supply channel; a liquid supply pipe connecting multiple liquid injection pipes in series; a through port opened on the middle plate and connected to the liquid supply channel to allow liquid to flow out of the liquid supply channel and overflow through the wiping block.

[0010] As a further improvement of the solution, it also includes: a right-angle guide tube, which is connected to the outer wall of the injection tube and then installed on the installation frame.

[0011] As a further improvement of the scheme, it also includes: a limiting groove is opened in the circumferential direction at the lower part of the pin; a mounting hole is vertically extended from the outer wall of the T-block to the hole corresponding to the pin; a clamping plate is slidably inserted into the mounting hole; a locking bolt is screwed into the mounting hole and is rotatably connected to the clamping plate.

[0012] As a further improvement of the solution, the wiping blocks and the middle plate are T-shaped, and the angles of adjacent wiping blocks and middle plates are inverted with each other, and the lateral parts of the wiping blocks and the middle plate extend to the adjacent T-shaped blocks.

[0013] As a further improvement of the scheme, two groups of cleaning modules composed of the mounting frame, the crankshaft and the movable wiping member can be symmetrically arranged on the connecting member, and the second group of cleaning modules replaces the holding connecting frame and is installed on the connecting member, and the crankshafts on the two groups of cleaning modules are connected to the gears via a universal shaft for driving.

[0014] The present invention brings the following effects: 1. The present invention drives the installation frame to move so that the gear drives the crankshaft to rotate, and the crankshaft drives multiple movable wiping members to move back and forth. During this process, the movable wiping members can continuously wipe and clean the screen to clean the screen, and the movable wiping members that brush back and forth can have a better cleaning effect on the ink adhered to the screen.

[0015] 2. The coordinated use of the holding connection frame and the roller provided in the present invention enables the roller to press the screen from top to bottom when the movable wiping member abuts against the screen, so that the screen is tightly attached to the end surface of the movable wiping member.

[0016] 3. The liquid injection tube provided in the present invention can make the middle part of the wiping block overflow liquid, so that ink will not accumulate in the middle area of ​​the wiping block during cleaning, causing the screen to be not cleaned thoroughly.

[0017] 4. The present invention designs the wiping block and the middle plate into a T-shape, and arranges the two adjacent wiping blocks and the middle plate in an inverted manner. In this way, there is no cleaning dead angle gap between the two adjacent movable wiping parts, and the screen can be cleaned more thoroughly during the cleaning process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a complete schematic diagram of the present invention.

[0019] Figure 2 Schematic diagram of the screen placed on the step support block.

[0020] Figure 3 For the present invention Figure 1 The schematic diagram of the cleaning frame, step support block and rack is hidden.

[0021] Figure 4 This is a partial disassembly schematic diagram of the end portion of the installation frame of the present invention.

[0022] Figure 5 It is a schematic diagram of the liquid injection tube, liquid supply tube and right-angle guide tube of the present invention.

[0023] Figure 6 It is a schematic diagram of a specific connection method of the movable wiping member of the present invention.

[0024] Figure 7 It is a schematic diagram of the misaligned state of the movable wiping member of the present invention.

[0025] Figure 8 It is a schematic diagram of the specific structure of the movable wiping member of the present invention.

[0026] Fig. 9 This is a schematic diagram of the second structure of the movable wiping member of the present invention.

[0027] Among them, the corresponding relationship between the reference numerals in the accompanying drawings and the names of the components is: 11-cleaning frame, 12-step support block, 121-limiting bar, 13-rack, 131-guide rod, 14-installation frame, 141-connecting piece, 142-limiting bolt, 15-crankshaft, 16-gear, 17-movable wiper, 171-movable notch, 172-limiting movable opening, 173-connecting bolt, 1701-T-block, 1702-middle plate, 17021-latch, 1703-wiping block, 1704-liquid supply channel, 1705-through port, 1706-limiting groove, 1707-mounting hole, 1708-clamp plate, 1709-locking bolt, 21-holding connecting frame, 22-roller, 31-liquid injection pipe, 32-liquid supply pipe, 33-right angle guide pipe, 41-side mounting frame, 42-flat nozzle, 300-mesh plate. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. It will be appreciated that the specific embodiments described herein are only used to explain the present application, rather than to limit the present application. It should also be noted that, for ease of description, only some but not all structures related to the present application are shown in the drawings. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the art without making creative work are within the scope of protection of the present application.

[0029] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0030] The present invention specifically discloses a circuit board screen printing plate ink cleaning device, such as Figure 1-Figure 9As shown, it includes: a cleaning frame 11 that can hold water, water can be poured into the cleaning frame 11 when in use, step support blocks 12 are installed on both sides of the cleaning frame 11, the screen 300 that needs to be cleaned of ink is placed on the step support blocks 12 for cleaning, and can be sprayed with water in conjunction with a spray device when necessary, a rack 13 is installed on both sides of the cleaning frame 11, the rack 13 and the step support blocks 12 are perpendicular to each other, a guide rod 131 is fixedly installed on the rack 13, two ends of the installation frame 14 are connected to connecting pieces 141, the installation frame 14 is slidably connected to the guide rod 131 through the connecting piece 141, and the installation frame 14 is pushed to move on the guide rod 131 when in use, a crankshaft 15 is rotatably installed inside the installation frame 14, a gear 16 is rotatably arranged on the connecting piece 141 and connected to the crankshaft 15, and the gear 16 is The rack 13 is engaged, and when in use, it is necessary to push the mounting frame 14 to slide on the rack 13, and the gear 16 and the rack 13 will rotate after being engaged, and the crankshaft 15 will rotate during the rotation, and a plurality of movable wiping members 17 are slidably installed side by side on the mounting frame 14, and the movable wiping member 17 is movably inserted into a movable notch 171 opened at the top of the mounting frame 14, and the lower part of the movable wiping member 17 is connected to the crankshaft 15, and limited movable openings 172 are opened on the mounting frame 14 on both sides of the movable notch 171, and the connecting bolts 173 pass through the limited movable openings 172 and are connected to the movable wiping member 17, so that during the rotation of the crankshaft 15, the movable wiping member 17 will not be lifted up due to the rotation of the crankshaft 15, and the movable wiping member 17 can slide stably under the restriction of the connecting bolts 173.

[0031] Specifically, when in use, the screen plate 300 to be cleaned is first placed on the stepped support block 12, and the mesh surface of the screen plate 300 is in contact with the top of the movable wiper 17, and then the mounting frame 14 is pushed to move along the guide rod 131. Through the contact and friction between the movable wiper 17 and the screen plate 300, the ink on the screen plate 300 can be scraped off in the process of pushing the mounting frame 14 back and forth. In the process of pushing the mounting frame 14, the gear 16 drives the crankshaft 15 to rotate, so that in the process of the mounting frame 14 moving as a whole with the movable wiper 17, the movable wiper 17 will also perform a small range of reciprocating movement on the mounting frame 14. The advantage of this arrangement is that it has a better peeling effect on the ink that is firmly adhered to the screen plate 300, thereby achieving a better cleaning effect.

[0032] according to Figure 1 As shown, the step support block 12 has limit strips 121 extending outward on both sides to form an angle structure. When the mesh plate 300 is placed on the step support block 12, the top corner of the mesh plate 300 is placed in the angle structure of the limit strips 121. The angle structure can limit the mesh plate 300 to prevent the mesh plate 300 from sliding and deviating on the step support block 12.

[0033] according to Figure 1 and Figure 3As shown, it also includes: a holding connection frame 21, one end of the holding connection frame 21 is connected to the connecting piece 141 on one side by a hinge, and the other end of the holding connection frame 21 is movably connected to the connecting piece 141 on the other side by a limiting bolt 142, and two rollers 22 are symmetrically mounted on the holding connection frame 21 for rotation. Specifically, when in use, the holding connection frame 21 is first opened, and the mesh plate 300 is placed on the step support block 12, and then the holding connection frame 21 is closed, and the end of the holding connection frame 21 is locked by the limiting bolt 142, and finally the mesh plate 300 is clamped by the movable wiper 17 and the roller 22. The top of the mesh plate 300 is pressed by the roller 22, so that when the movable wiper 17 presses against the mesh plate 300 from the bottom upward, the roller 22 can make the mesh plate 300 tightly attached to the movable wiper 17, and can firmly press against the mesh plate 300 during the movement of the movable wiper 17.

[0034] according to Figure 3 As shown, the side mounting frame 14 further includes: a side mounting frame 41 fixedly mounted on the side walls on both sides of the mounting frame 14, and a plurality of flat nozzles 42 are evenly spaced and mounted on the side mounting frame 41, and the nozzles of the flat nozzles 42 are tilted toward the top edge of the movable wiping member 17. When in use, an external water supply device can be connected, and during the reciprocating movement of the mounting frame 14, the flat nozzles 42 arranged on both sides move with the movement and the water sprayed can wash off the ink attached to the screen plate 300.

[0035] according to Figure 6 and Figure 8 As shown, the movable wiping member 17 includes: a T-block 1701 movably inserted into a movable notch 171 opened at the top of the installation frame 14, the lower part of the T-block 1701 is connected to the crankshaft 15, and the T-block 1701 can slide in the movable notch 171 of the installation block after the crankshaft 15 rotates, and the connecting bolt 173 passes through the limited movable opening 172 and is connected to the T-block 1701, so as to stabilize the T-block 1701 on the installation frame 14, and an intermediate plate 1702 is provided on the top of the T-block 1701, and a latch 17021 is provided at the bottom of the intermediate plate 1702. The intermediate plate 1702 is detachably mounted on the top of the T-block 1701 through the latch 17021, and a wiping block 1703 is provided on the top of the intermediate plate 1702 for contacting the mesh plate 300. When the wiping block 1703 needs to be replaced, the middle plate 1702 can be removed from the T-block 1701 for replacement. The wiping block 1703 can be a sponge block or a flexible brush block.

[0036] according to Figure 5 and Figure 8As shown, it also includes: a liquid supply channel 1704 is provided on the T-block 1701, and the liquid supply channel 1704 extends inward from the side wall of the T-block 1701 and leads to the top of the T-block 1701, and the liquid injection tube 31 is connected to the liquid supply channel 1704, and the liquid supply tube 32 connects multiple liquid injection tubes 31 in series, and a through port 1705 is opened on the middle plate 1702, and the through port 1705 is connected to the liquid supply channel 1704. During the cleaning process of the wiping block 1703, water is injected into each liquid injection tube 31 through the liquid supply tube 32, so that the water flow will eventually overflow through the wiping block 1703. During the process of the wiping block 1703 brushing the screen plate 300, the continuously overflowing water flow will flush away the ink accumulated in the middle position of the wiping block 1703, thereby preventing the ink from accumulating in the middle of the wiping block 1703.

[0037] according to Figure 5 As shown, it also includes: a right-angle guide tube 33, which is connected to the outer wall of the injection tube 31 and then installed on the installation frame 14. Since the injection tube 31 will move back and forth with the movable wiping block 1703, in order to prevent the injection tube 31 and the liquid supply tube 32 from falling off during the reciprocating movement, the injection tube 31 is first wrapped and fixed on the installation frame 14 by the right-angle guide tube 33, and then connected to the liquid supply tube 32 after being pulled by the right-angle guide tube 33, so that the fixed injection tube 31 will not fall off during the reciprocating movement.

[0038] according to Figure 8 As shown, the present invention also includes: a limiting groove 1706 is formed in the circumferential direction at the lower part of the latch 17021, a mounting hole 1707 is formed on the outer wall of the T-block 1701, the mounting hole 1707 is vertically connected to the hole corresponding to the latch 17021, a clamping plate 1708 is slidably arranged in the mounting hole 1707, a locking bolt 1709 is screwed into the mounting hole 1707, and the end of the locking bolt 1709 is rotatably connected to the clamping plate 1708. When in use, after the latch 17021 is inserted into the T-block 1701, the locking bolt 1709 is rotated, which pushes the clamping plate 1708 toward the latch 17021, and the clamping plate 1708 is finally embedded in the limiting groove 1706, thereby locking the latch 17021 on the T-block 1701 and firmly fixing the middle plate 1702 on the T-block 1701.

[0039] according to Figure 7 As shown, there is a fixed gap between the movable wiping members 17 installed side by side, so there is always an area that cannot be cleaned during the reciprocating movement of the movable wiping member 17. Fig. 9As shown, the wiping block 1703 and the middle plate 1702 are T-shaped, and the angles of adjacent wiping blocks 1703 and middle plates 1702 are inverted with each other, and the lateral parts of the wiping blocks 1703 and middle plates 1702 extend to the adjacent T-blocks 1701, so that when in use, the wiping blocks 1703 and middle plates 1702 that cross and extend each other can fill the existing gaps, and there will be no cleaning dead corners during the reciprocating movement.

[0040] It can be imagined that the cleaning module composed of the installation frame 14, the crankshaft 15 and the movable wiping member 17 can be symmetrically arranged in two groups on the connecting member 141 (not shown in the figure). Specifically, the second group of cleaning modules replaces the holding connecting frame 21 and is installed on the connecting member 141. That is to say, the connecting member 141 is provided with two groups of cleaning modules above and below, wherein the cleaning module at the upper part can be flipped open so that the mesh plate 300 can be clamped by the two cleaning modules, and the crankshaft 15 on the upper cleaning module is driven by the universal joint connecting gear 16, so that the gear 16 does not need to follow the flip and can always keep in meshing with the lower gear 16. By arranging two groups of cleaning modules above and below, both sides of the mesh plate 300 can be cleaned at the same time.

[0041] The above-mentioned embodiments only express the preferred implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person skilled in the art, several modifications, improvements and substitutions can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the attached claims.

Claims

1. A circuit board screen printing plate ink cleaning device, comprising: A cleaning frame (11); a step support block (12) mounted on both sides of the cleaning frame (11); a rack (13) mounted on both sides of the cleaning frame (11) and perpendicular to the step support block (12); a guide rod (131) fixedly mounted on the rack (13); a mounting frame (14) having connecting members (141) connected at both ends and slidably connected to the guide rod (131) via the connecting member (141); characterized in that it also includes: a crankshaft (15) rotatably mounted inside the mounting frame (14); a gear (16) rotatably arranged on the connecting member (141) and connected to the crankshaft (15), the gear (16) meshing with the rack (13); a plurality of movable wiping members (17) arranged side by side, the movable wiping members (17) The movable wiping member (17) is movably inserted into a movable notch (171) provided at the top of the mounting frame (14); the movable wiping member (17) is connected to the crankshaft (15); limited movable openings (172) are provided on the mounting frame (14) at both sides of the movable notch (171); connecting bolts (173) pass through the limited movable openings (172) and are connected to the movable wiping member (17); a mesh plate (300) is placed on the step support block (12); a mesh surface of the mesh plate (300) is in contact with the top of the movable wiping member (17), pushing the mounting frame (14) to move along the guide rod (131); the gear (16) drives the crankshaft (15) to rotate, thereby causing the adjacent movable wiping members (17) to reciprocate and move in an offset manner on the mounting frame (14).

2. The circuit board screen printing plate ink cleaning device according to claim 1, characterized in that: Also includes: The limiting strips (121) extend outwards from both sides of the step support block (12) to form an angle wrapping structure to limit the mesh plate (300).

3. The circuit board screen printing plate ink cleaning device according to claim 2, characterized in that: Also includes: A holding connection frame (21), one end of which is connected to the connection piece (141) on one side via a hinge, and the other end of the holding connection frame (21) is movably connected to the connection piece (141) on the other side via a limiting bolt (142); two rollers (22) are symmetrically provided, both of which are rotatably provided on the holding connection frame (21); after the mesh plate (300) is placed on the step support block (12), the holding connection frame (21) is connected via the limiting bolt (142), so that the mesh plate (300) is clamped by the movable wiping member (17) and the roller (22).

4. The circuit board screen printing plate ink cleaning device according to claim 3, characterized in that: Also includes: A side mounting frame (41) is mounted on the side walls on both sides of the mounting frame (14); and flat nozzles (42) are evenly spaced and mounted on the side mounting frame (41), with nozzles of the flat nozzles (42) tilted toward the top edge of the movable wiping member (17).

5. The circuit board screen printing plate ink cleaning device according to claim 4, characterized in that: The movable wiping member (17) comprises: a T-shaped block (1701) movably inserted into a movable notch (171) provided at the top of the mounting frame (14); an intermediate plate (1702) having a latch (17021) provided at the bottom thereof, the intermediate plate (1702) being detachably mounted on the top of the T-shaped block (1701) via the latch (17021); and a wiping block (1703) mounted on the top of the intermediate plate (1702) for contacting the screen plate (300).

6. The circuit board screen printing plate ink cleaning device according to claim 5, characterized in that: Also includes: A liquid supply channel (1704) extending inward from the side wall of the T-block (1701) and leading to the top of the T-block (1701); a liquid injection tube (31) connected to the liquid supply channel (1704); a liquid supply tube (32) connecting a plurality of the liquid injection tubes (31) in series; and a through port (1705) provided on the middle plate (1702) and communicating with the liquid supply channel (1704) to allow liquid to flow out of the liquid supply channel (1704) and overflow through the wiping block (1703).

7. The circuit board screen printing plate ink cleaning device according to claim 6, characterized in that: Also includes: The right-angle guide tube (33) is connected to the outer wall of the liquid injection tube (31) and then installed on the installation frame (14).

8. The circuit board screen printing plate ink cleaning device according to claim 7, characterized in that: Also includes: A limiting groove (1706) is circumferentially formed at the lower part of the latch (17021); a mounting hole (1707) extends vertically from the outer wall of the T-block (1701) to a hole corresponding to the latch (17021); a clamping plate (1708) is slidably inserted into the mounting hole (1707); and a locking bolt (1709) is screwed into the mounting hole (1707) and is rotatably connected to the clamping plate (1708).

9. The circuit board screen printing plate ink cleaning device according to any one of claims 5 to 8, characterized in that: The wiping block (1703) and the middle plate (1702) are in a T-shape, and the angles of adjacent wiping blocks (1703) and middle plates (1702) are inverted with each other, and the lateral parts of the wiping block (1703) and the middle plate (1702) extend to the adjacent T-block (1701).

10. The circuit board screen printing plate ink cleaning device according to claim 9, characterized in that: The cleaning modules composed of the mounting frame (14), the crankshaft (15) and the movable wiping member (17) can be symmetrically arranged in two groups on the connecting member (141), the second group of cleaning modules replacing the holding connecting frame (21) and being installed on the connecting member (141), and the crankshafts (15) on the two groups of cleaning modules are connected to the gear (16) via a universal shaft for driving.

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