Drying device of flexo printing machine

Abstract

The utility model relates to the field of flexographic printing machines, and discloses a drying device of a flexographic printing machine, which comprises flexographic printing equipment, a fixed plate is fixedly mounted in the middle of the front end surface of the flexographic printing equipment, a dryer is arranged at the top of the front end surface of the fixed plate, and a plurality of support rollers are rotatably mounted on the front end surface of the fixed plate close to the dryer; a movable plate is symmetrically and rotatably mounted on the back of the fixed plate close to the lower part of the dryer, a plurality of guide sliding grooves are symmetrically formed in the front end face of the fixed plate close to the lower part of the dryer, and a movable guide roller is welded to the edge of one end of the movable plate penetrating through the movable plate and extending to the front end face of the fixed plate; according to the flexible printing equipment, the printing stock is driven to move through the movable guide roller, so that the effect of conveniently adjusting the distance between the drying machine and the printing stock is achieved, the drying effect when the printing stock is printed with different kinds of ink is improved, the problem that the printing stock is insufficient or too dry during drying is solved, and the overall use efficiency of the flexible printing equipment is improved.

Description

Technical Field

[0001] The present application relates to the field of flexographic printing machines, and in particular to a drying device of a flexographic printing machine. Background Art

[0002] Flexographic printing press is a common printing equipment, widely used in packaging, label, paper and other industries. It uses a flexible plate as the printing plate and transfers the ink to the printing material by transfer. Flexographic printing presses are generally suitable for large-area, high-speed, and continuous printing needs. Flexographic printing presses are usually equipped with a drying device for quickly curing and drying the ink on the printing material to ensure printing quality and production efficiency. The drying of the ink is accelerated by applying hot air to the printing material. Usually, the hot air is generated by a heating element, such as an electric heating tube or a gas heater. The hot air is sprayed onto the printing material to take away the moisture in the ink, thereby achieving rapid drying.

[0003] When in use, the substrate is generally moved along the bottom of the drying device of the flexographic printing press, but the distance between the drying surface of the substrate and the drying device is generally kept fixed. However, when printing different inks on different substrates, the required drying intensity varies to a certain extent, which leads to different drying effects for substrates printed with different inks, and may cause problems of over-drying or insufficient drying, thereby reducing the overall drying efficiency of the flexographic printing press for the substrate.

[0004] With respect to the above-mentioned related technologies, the inventor believes that when a flexographic printing machine dries substrates printed with different inks, there is a defect that the distance between the drying device and the substrate is consistent, which affects the drying effect. Therefore, a drying device for a flexographic printing machine is proposed to solve the above problem. Utility Model Content

[0005] In order to solve the problem that when a flexographic printing press dries substrates printed with different inks, the drying effect is affected by the inconsistent distance between the drying device and the substrate, the present application provides a drying device for a flexographic printing press.

[0006] The present application provides a drying device for a flexographic printing machine that adopts the following technical solution:

[0007] A drying device of a flexographic printing machine comprises a flexographic printing device, a fixed plate is fixedly installed in the middle of the front end face of the flexographic printing device, a dryer is arranged on the top of the front end face of the fixed plate, a plurality of supporting rollers are rotatably installed on the front end face of the fixed plate near the dryer, a printing material is wound on the outer surface of the supporting roller, a movable plate is symmetrically rotatably installed on the back side of the fixed plate near the bottom of the dryer, a plurality of guide slide grooves are symmetrically provided on the front end face of the fixed plate near the bottom of the dryer, a movable guide roller is welded to an edge portion of one end of the movable plate extending through the movable plate to the front end face of the fixed plate, a driven gear is fixedly connected to one end of the movable plate at a hinge point, an active rack plate is movably installed on the outer surface of the driven gear, and a spacing adjustment mechanism is also provided on the back side of the fixed plate for controlling the active rack plate to move.

[0008] Preferably, the spacing adjustment mechanism includes a connecting plate, which is fixedly installed on one side edge of the active rack plate, and a support plate is symmetrically welded to the top of one end of the fixed plate. A bidirectional screw is rotatably installed through the connecting plate between the two support plates, and a rotating handle is installed on one side of the bidirectional screw through the outside of the support plate.

[0009] Preferably, the active rack plate is located above the driven gear, the bottom end of the active rack plate moves close to the outer surface of the driven gear, and the driven gear and the active rack plate are meshed with each other.

[0010] Preferably, the outer diameter of the movable guide roller is smaller than the distance between the two sides of the inner wall of the guide chute, and the guide chute and the movable guide roller are coupled to each other.

[0011] Preferably, a fixed connecting rod is fixedly installed between the two support plates near the top of the active rack plate, a through hole is opened through the top of one side of the connecting plate, one side of the outer surface of the fixed connecting rod is located inside the through hole, and the fixed connecting rod and the through hole are interlocked.

[0012] Preferably, external threads with opposite thread patterns are respectively provided on both sides of the outer surface of the bidirectional screw rod, a threaded hole is provided through the bottom of one side of the connecting plate, and the active rack plate and the threaded hole are adapted to each other.

[0013] In summary, this application includes the following beneficial technical effects:

[0014] By rotating the bidirectional lead screw to drive the connecting plate to move, the distance between the two active rack plates is adjusted, so that the active rack plate drives the driven gear to rotate, and then the movable plate drives the movable guide roller to move along the inside of the guide slide groove, so that the movable guide roller moves the printing substrate; compared with the prior art, this solution has the effect of facilitating the adjustment of the distance between the dryer and the printing substrate, improves the drying effect when printing different inks on the printing substrate, solves the problem of insufficient or excessive drying of the printing substrate, and improves the overall utilization efficiency of the flexographic printing equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the embodiment of the application;

[0016] Figure 2 is a schematic diagram of the back structure of the flexographic printing device in the application embodiment;

[0017] Figure 3 It is a structural schematic diagram of the guide chute in the application embodiment;

[0018] Figure 4 It is a schematic diagram of the structure of the bidirectional screw rod in the embodiment of the application;

[0019] Explanation of the reference numerals in the accompanying drawings: 1. Flexographic printing equipment; 2. Fixed plate; 3. Dryer; 4. Support roller; 5. Printing material; 6. Movable plate; 7. Guide slide; 8. Movable guide roller; 9. Driven gear; 10. Active rack plate; 11. Connecting plate; 12. Support plate; 13. Bidirectional screw; 14. Fixed connecting rod; 15. Turning handle. DETAILED DESCRIPTION

[0020] The following is combined with Figure 1-4 This application is described in further detail.

[0021] The present application embodiment discloses a drying device for a flexographic printing machine. Figure 1-4 A drying device for a flexographic printing machine comprises a flexographic printing device 1, a fixed plate 2 is fixedly installed in the middle of the front end face of the flexographic printing device 1, a dryer 3 is arranged on the top of the front end face of the fixed plate 2, a plurality of support rollers 4 are rotatably installed near the dryer 3 on the front end face of the fixed plate 2, a substrate 5 is wound around the outer surface of the support roller 4, a movable plate 6 is symmetrically rotatably installed near the bottom of the dryer 3 on the back of the fixed plate 2, a plurality of guide slide grooves 7 are symmetrically opened on the front end face of the fixed plate 2 near the bottom of the dryer 3, and one end edge of the movable plate 6 passes through the movable plate 6 and extends to the front end face of the fixed plate 2. A movable guide roller 8 is connected, and the outer diameter of the movable guide roller 8 is smaller than the distance between the two sides of the inner wall of the guide slide groove 7. The guide slide groove 7 and the movable guide roller 8 are coupled to each other. One end of the movable plate 6 is placed at the hinge point and fixedly connected to a driven gear 9. An active rack plate 10 is movably installed on the outer surface of the driven gear 9. The active rack plate 10 is located above the driven gear 9. The bottom end of the active rack plate 10 moves close to the outer surface of the driven gear 9. The driven gear 9 and the active rack plate 10 are meshed with each other. A spacing adjustment mechanism is also provided on the back of the fixed plate 2 for controlling the movement of the active rack plate 10.

[0022] The active active rack plate 10 drives the driven gear 9 to rotate, and the driven gear 9 drives the movable plate 6 to rotate, so that the movable plate 6 drives the movable guide roller 8 to move along the inside of the guide slide groove 7, so that the movable movable guide roller 8 moves the printing material 5, adjusts the distance between the printing material 5 and the dryer 3, and makes the dryer 3 dry the printing material 5 passing below, which reflects the overall drying effect of the printing material 5 under different ink printing.

[0023] Reference Figure 2 and Figure 4 The spacing adjustment mechanism includes a connecting plate 11, which is fixedly installed on one side edge of the active rack plate 10, and a support plate 12 is symmetrically welded on the top of one end of the fixed plate 2. A bidirectional screw rod 13 is rotatably installed through the connecting plate 11 between the two support plates 12, and a rotating handle 15 is installed on one side of the bidirectional screw rod 13 through the outside of the support plate 12. A fixed connecting rod 14 is fixedly installed between the two support plates 12 near the top of the active rack plate 10, and a through hole is opened through the top of one side of the connecting plate 11, and one side of the outer surface of the fixed connecting rod 14 is located inside the through hole, and the fixed connecting rod 14 and the through hole are embedded with each other, and external threads with opposite thread patterns are respectively opened on both sides of the outer surface of the bidirectional screw rod 13, and a threaded hole is opened through the bottom of one side of the connecting plate 11, and the active rack plate 10 and the threaded hole are adapted to each other.

[0024] By rotating the rotating handle 15 to drive the bidirectional screw rod 13 to rotate, the bidirectional screw rod 13 drives the connecting plate 11 to move, and at the same time, the fixed connecting rod 14 guides and supports the movable connecting plate 11 to keep the connecting plate 11 in a stable movable state, thereby enabling the two active rack plates 10 to flexibly adjust the distance between each other, reflecting the movable adjustment effect of the bidirectional screw rod 13 on the active rack plate 10.

[0025] The implementation principle of the drying device of a flexographic printing machine in the embodiment of the present application is as follows: by rotating the rotating handle 15 to drive the bidirectional screw 13 to rotate, the bidirectional screw 13 drives the connecting plate 11 to move, and at the same time, the fixed connecting rod 14 guides and supports the movable connecting plate 11 to keep the connecting plate 11 in a stable movable state, so that the two active rack plates 10 can adjust the distance between each other, so that the active rack plate 10 in the movable state drives the driven gear 9 to rotate, and the driven gear 9 drives the movable plate 6 to rotate, so that the movable plate 6 drives the movable guide roller 8 along The movable guide roller 8 moves the printing material 5 by moving the guide slide groove 7, and the distance between the printing material 5 and the dryer 3 is adjusted, so that the dryer 3 dries the printing material 5 passing therethrough, so that the printing material 5 printed with different inks can be fully dried. Compared with the prior art, this solution has the effect of facilitating the adjustment of the distance between the dryer 3 and the printing material 5, improving the drying effect when printing different inks on the substrate 5, solving the problem of insufficient or excessive drying of the substrate 5, and improving the overall utilization efficiency of the flexographic printing equipment 1.

[0026] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0027] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0028] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

[0029] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A drying device for a flexographic printing machine, comprising a flexographic printing device (1), a fixed plate (2) fixedly mounted in the middle of the front end face of the flexographic printing device (1), a dryer (3) arranged at the top of the front end face of the fixed plate (2), a plurality of supporting rollers (4) rotatably mounted on the front end face of the fixed plate (2) near the dryer (3), a substrate (5) wound around the outer surface of the supporting roller (4), characterized in that: A movable plate (6) is symmetrically rotatably mounted on the back of the fixed plate (2) near the bottom of the dryer (3); a plurality of guide slots (7) are symmetrically opened on the front end surface of the fixed plate (2) near the bottom of the dryer (3); a movable guide roller (8) is welded to one end edge of the movable plate (6) extending through the movable plate (6) to the front end surface of the fixed plate (2); a driven gear (9) is fixedly connected to one end of the movable plate (6) at a hinge point; an active rack plate (10) is movably mounted on the outer surface of the driven gear (9); a spacing adjustment mechanism is also provided on the back of the fixed plate (2) for controlling the active rack plate (10) to move.

2. A drying device for a flexographic printing press according to claim 1, characterized in that: The spacing adjustment mechanism comprises a connecting plate (11), wherein the connecting plate (11) is fixedly mounted on one side edge of the active rack plate (10), a supporting plate (12) is symmetrically welded to the top of one end of the fixed plate (2), a bidirectional screw rod (13) is rotatably mounted between the two supporting plates (12) through the connecting plate (11), and a rotating handle (15) is mounted on one side of the bidirectional screw rod (13) through the outside of the supporting plate (12).

3. The drying device of a flexographic printing press according to claim 1, characterized in that: The active rack plate (10) is located above the driven gear (9), and the bottom end of the active rack plate (10) moves close to the outer surface of the driven gear (9), and the driven gear (9) and the active rack plate (10) are meshed with each other.

4. The drying device of a flexographic printing press according to claim 1, characterized in that: The outer diameter of the movable guide roller (8) is smaller than the distance between the two sides of the inner wall of the guide chute (7), and the guide chute (7) and the movable guide roller (8) are coupled to each other.

5. The drying device of a flexographic printing press according to claim 2, characterized in that: A fixed connecting rod (14) is fixedly installed between the two support plates (12) near the top of the active rack plate (10), a through hole is opened through the top of one side of the connecting plate (11), one side of the outer surface of the fixed connecting rod (14) is located inside the through hole, and the fixed connecting rod (14) and the through hole are interlocked.

6. A drying device for a flexographic printing press according to claim 2, characterized in that: External threads with opposite thread patterns are respectively provided on both sides of the outer surface of the bidirectional screw rod (13); a threaded hole is provided through the bottom of one side of the connecting plate (11); and the active rack plate (10) and the threaded hole are adapted to each other.

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