Drying device for screen printing machine

Abstract

The invention discloses a drying device for a screen printing machine. By arranging a feed roller group, a winding roller group and a discharge roller group in a box body, the feed roller group is arranged at the discharge side of the box body, the winding roller group is arranged close to the feed side of the box body, and the discharge roller group is arranged at the bottom of the box body, the printing material enters the box body from the feed inlet on the feed side of the box body, is wound into the winding roller group after the feed roller group changes direction, and is reversed again by the discharge roller group so that the printing material points to the discharge side of the box body, and then extends out of the box body from the discharge port on the discharge side of the box body. The printing material is fed from the feed inlet on one side of the box body and discharged from the discharge port on the other side of the box body, so that the printing material can be directly connected to the next process after being dried by the drying device, eliminating the intermediate processes of winding, unloading, transporting and loading the printing material, and greatly shortening the time for the printing material to be connected to the next process after drying.

Description

Technical Field

[0001] The invention relates to the technical field of printing equipment, in particular to a drying device of a screen printing machine. Background Art

[0002] The drying device currently known for screen printing machines adopts a U-shaped material collection method to reel the printed material onto the receiving roller at the center of the device. During the reeling process, the ink on the printed material is dried by the heater in the device to solidify on the printed material, and then the printed material is unloaded from the receiving roller for storage or transferred to the next process for unwinding and feeding. This drying device is difficult to directly connect to the next process, and the unloading, transportation and loading of the pressure-bearing material roll are required every time, which is time-consuming and labor-intensive. In addition, the material roll is easily damaged during the transportation process, which affects the processing of the next process.

[0003] In addition, sufficient space must be reserved in the center of the device to accommodate rolled substrates, resulting in a large volume and a large floor space for the entire drying device. Summary of the invention

[0004] In view of the problems existing in the prior art, the main purpose of the present invention is to provide a drying device for a screen printing machine.

[0005] To achieve the above-mentioned purpose, the drying device of the screen printing machine proposed in the present invention includes a box body and a heater arranged in the box body, and the box body is also provided with a feed roller group, a winding roller group and a discharge roller group, the feed roller group is arranged on the discharge side of the box body, the winding roller group is close to the feed side of the box body, and the discharge roller group is arranged at the bottom of the box body. The printing material enters the box body from the feed inlet on the feed side of the box body, is wound around the winding roller group through the feed roller group, and is wound around the discharge roller group after the winding roller group extends back and forth in a zigzag shape to the discharge side of the winding roller group, and then extends to the discharge port on the discharge side of the box body after passing through the discharge roller group.

[0006] Optionally, the heater includes a first heating box, a heating air knife and a second heating box;

[0007] The first heating box is located above the printing material between the material inlet of the box body and the feed roller group, and the air outlet of the first heating box faces the printing material;

[0008] The heated air knife is located below the printing material passing through the feed roller group, and its air outlet faces the printing material;

[0009] The second heating box is arranged at the rear side of the box body, and the air outlet thereof blows from the rear to the front toward the printing material wound around the winding roller group.

[0010] Optionally, the feed roller group includes a first fixed roller, a second fixed roller and a floating roller, the first fixed roller is located at the discharge side of the box body, the second fixed roller is located at the feed side of the winding roller group, the floating roller is slidably arranged along the vertical direction, and is located at the middle lower part between the first fixed roller and the second fixed roller, the printing material is wound into the first fixed roller, after the floating roller changes direction, it is wound into the second fixed roller, and enters the winding roller group through the second fixed roller;

[0011] The heated air knife is located below the printing material between the first fixed roller and the floating roller.

[0012] Optionally, the material wrapping roller group includes a plurality of upper rollers and lower rollers corresponding to the upper rollers, the upper rollers are arranged at intervals, and the lower rollers are located below the corresponding upper rollers and are staggered with the corresponding lower rollers.

[0013] Optionally, an upper beam and a lower beam which are arranged opposite to each other up and down are provided in the box body, the upper roller is arranged on the upper beam, and the lower roller is arranged on the lower beam.

[0014] Optionally, the discharge roller group includes a first discharge roller, a second discharge roller, a third discharge roller and a fourth discharge roller which are arranged in sequence from the feed side of the box to the discharge side of the box. After the printing material is discharged by the winding roller group, it is wound around the first discharge roller and passes through the second discharge roller, the third discharge roller and the fourth discharge roller in sequence before entering the discharge port of the box.

[0015] Optionally, the discharge port of the box body is located above the third discharge roller, and the fourth discharge roller is arranged on the inner side of the discharge port of the box body.

[0016] Optionally, a press is provided outside the discharge port of the box body.

[0017] Optionally, a receiving roller is arranged below the press.

[0018] Optionally, rollers are arranged at the bottom of the box.

[0019] The drying device provided by the present invention is provided with a feed roller group, a winding roller group and a discharge roller group in a box body, the feed roller group is provided on the discharge side of the box body, the winding roller group is provided close to the feed side of the box body, and the discharge roller group is provided at the bottom of the box body, the printing material enters the box body from the feed inlet on the feed side of the box body, is wound into the winding roller group after the feed roller group changes direction, and is wound into the discharge roller group after the winding roller group extends back and forth in a zigzag shape to the discharge side of the winding roller group, and is then wound into the discharge roller group, and is changed again by the discharge roller group so that the printing material points to the discharge side of the box body, and extends out of the box body from the discharge inlet on the discharge side of the box body.

[0020] In this way, the printing material can be fed into the material inlet on one side of the box and discharged from the material outlet on the other side of the box, so that the printing material can be directly connected to the next process after being dried by the drying device, eliminating the intermediate processes of winding, unloading, transporting and loading the printing material, greatly shortening the time it takes to connect the printing material to the next process after drying.

[0021] Furthermore, there is no need to reserve space in the box for accommodating the rolled printing material, which provides a basis for reducing the volume of the drying device and thereby reduces the space occupied by the drying device.

[0022] In addition, the pressure-bearing material extends back and forth in a zigzag shape in the winding roller group, so as to wind longer pressure-bearing materials in a box with limited space, increase the residence time of the pressure-bearing materials in the box, and ensure the drying effect of the pressure-bearing materials in the box; at the same time, the zigzag back and forth extension can also provide convenience for the initial winding of the pressure-bearing material on the winding roller group. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of an embodiment of a drying device of a screen printing machine of the present invention. DETAILED DESCRIPTION

[0024] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0025] Please refer to the instruction manual Figure 1 In an embodiment of the present invention, a drying device of a screen printing machine is proposed, and the drying device of the screen printing machine includes a box body 100 and a heater arranged in the box body 100. A feed roller group, a winding roller group and a discharge roller group are also arranged in the box body 100. The feed roller group is arranged on the discharge side of the box body 100, the winding roller group is close to the feeding side of the box body 100, and the discharge roller group is arranged at the bottom of the box body 100. The printing material 800 enters the box body 100 from the feeding port 100a on the feeding side of the box body 100, is wound into the winding roller group through the feed roller group, and is wound into the discharge roller group after the winding roller group extends back and forth in a zigzag shape to the discharge side of the winding roller group, and extends to the discharge port (not shown) on the discharge side of the box body 100 after passing through the discharge roller group.

[0026] Specifically, in the embodiment of the invention, the feed roller group includes a first fixed roller 210, a second fixed roller 220 and a floating roller 230. The first fixed roller 210 is located at the discharge side of the box 100, the second fixed roller 220 is located at the feed side of the winding roller group, and the floating roller 230 is arranged to slide in the vertical direction and is located in the middle and lower part of the first fixed roller 210 and the second fixed roller 220. The printing material 800 is wound from the first fixed roller 210, and after the floating roller 230 changes direction, it is wound into the second fixed roller 220, and enters the winding roller group through the second fixed roller 220. Thus, the printing material 800 changes direction through the feed roller group and enters the winding roller group; and the floating roller 230 applies tension to the printing material 800 through its own gravity, so that the printing material 800 always maintains a certain tension state during the feeding process, which is convenient for the subsequent printing material 800 to be wound in the winding roller.

[0027] The winding roller group includes a plurality of upper rollers 410 and lower rollers 420 corresponding to the upper rollers 410. The adjacent upper rollers 410 are arranged at intervals, and the lower rollers 420 are located below the corresponding upper rollers 410 and staggered with the corresponding lower rollers 420. Thus, the printing material 800 can be wound back and forth in a zigzag shape in the winding roller group.

[0028] To facilitate the disassembly, assembly and maintenance of the upper roller 410 and the lower roller 420 , an upper beam 110 and a lower beam 120 are arranged opposite to each other in the box body 100 , and the upper roller 410 is arranged on the upper beam 110 , and the lower roller 420 is arranged on the lower beam 120 .

[0029] It should be noted that the arrangement of the winding roller group given in this embodiment is only an example and does not impose any special restrictions on the winding roller group. As long as the printing material 800 is wound back and forth in a zigzag shape on the winding roller group, for example, the upper roller 410 and the lower roller 420 are also arranged relatively to the left and right, so that the printing material 800 is wound back and forth in a zigzag shape from top to bottom or from bottom to top.

[0030] The discharge roller group includes a first discharge roller 510, a second discharge roller 520, a third discharge roller 530 and a fourth discharge roller 540 which are arranged in sequence from the feeding side of the box body 100 to the discharging side of the box body 100. The printing material 800 is discharged by the winding roller group and then wound into the first discharge roller 510, and passes through the second discharge roller 520, the third discharge roller 530 and the fourth discharge roller 540 in sequence before entering the discharge port of the box body 100.

[0031] The present invention arranges a feed roller group, a winding roller group and a discharge roller group in a box body 100, wherein the feed roller group is arranged on the discharge side of the box body 100, the winding roller group is arranged close to the feed side of the box body 100, and the discharge roller group is arranged at the bottom of the box body 100. The printing material 800 enters the box body 100 from the feed inlet 100a on the feed side of the box body 100, is wound into the winding roller group after the feed roller group changes direction, and is wound into the discharge roller group after the winding roller group extends back and forth in a zigzag shape to the discharge side of the winding roller group. The discharge roller group changes direction again so that the printing material 800 points to the discharge side of the box body 100, and extends out of the box body 100 from the discharge port on the discharge side of the box body 100.

[0032] In this way, the printing material 800 can be fed from the feed port 100a on one side of the box body 100 and discharged from the discharge port on the other side of the box body 100, so that the printing material 800 can be directly connected to the next process after being dried by the drying device, eliminating the intermediate processes of winding, unloading, transporting and loading the printing material 800, thereby greatly shortening the time for connecting the printing material 800 to the next process after drying.

[0033] Furthermore, there is no need to reserve space in the box 100 for accommodating the rolled printing material 800, which provides a basis for reducing the volume of the drying device and thereby reducing the space occupied by the drying device.

[0034] In addition, the pressure-bearing material is extended back and forth in a zigzag shape in the winding roller group, so as to wind a longer pressure-bearing material in the box 100 with limited space, increase the retention time of the pressure-bearing material in the box 100, and ensure the drying effect of the pressure-bearing material in the box 100. At the same time, the zigzag back and forth extension can also provide convenience for the pressure-bearing material to be initially wound on the winding roller group.

[0035] Optionally, in an embodiment of the invention, the heater includes a first heating box, a heating air knife, and a second heating box. The first heating box adopts a tunnel furnace heating structure, which is arranged above the printing material 800 between the feeding port 100a of the box body 100 and the feeding roller group, and the air outlet faces the printing material 800, and can perform initial surface curing on the ink on the printing material 800 that has just entered the box body 100. Since the printing material 800 enters the winding roller group, the front and back sides of the printing material 800 will contact the surface of the roller. If the ink on the printing material 800 is not surface cured before entering the winding roller group, it is easy to scratch the ink. By arranging the first heating box with a tunnel furnace heating structure in the box body 100, the ink on the printing material 800 can be effectively surface cured, avoiding the above-mentioned problems.

[0036] The heated air knife is arranged below the printing material 800 between the first fixed roller 210 and the floating roller 230, and can perform secondary surface curing of the ink on the printing material 800, thereby improving the effect and efficiency of the ink surface curing. In conjunction with the first heating box, it can further avoid the problem of ink scratches.

[0037] The second heating box is a wind box with a heating wire, which is arranged at the rear side of the box body 100, and its air outlet blows from the rear to the front toward the printing material 800 wound in the winding roller group. The second heating box can perform a third drying on the printing material 800 wound in the winding roller group to completely dry the ink on the printing material 800.

[0038] Optionally, in an embodiment of the present invention, the discharge port of the box body 100 is arranged at the upper part of the discharge side of the box body 100, and the fourth discharge roller 540 is arranged on the inner side of the discharge port. After the printing material 800 is wound around the third discharge roller 530, it extends upward and wraps around the fourth discharge roller 540, and is folded toward the discharge port of the box body 100 through the fourth discharge roller 540.

[0039] A presser 600 is arranged outside the material outlet of the box 100 . The printing material 800 extends out of the box 100 and is pressed and corrected by the presser 600 , and can then be directly connected to the next step for processing.

[0040] Optionally, a receiving roller 700 may be provided below the press 600 to allow the dried printing material 800 to be rolled up outside the box 100, so that the printing material 800 can be directly connected to the next process and can be rolled up and stored, thereby improving the compatibility of the drying device. The receiving roller 700 is provided outside the box 100 to avoid occupying the internal space of the box 100.

[0041] Optionally, in the embodiment of the present invention, rollers are provided at the bottom of the box body 100 to improve the convenience of moving the drying device.

[0042] The above description is only a preferred embodiment of the present invention and is not intended to be construed as limiting the present invention. Any minor modifications, equivalent substitutions and improvements made to the above embodiments based on the technical essence of the present invention should be included in the protection scope of the technical solution of the present invention.

Claims

1. A drying device for a screen printing machine, comprising a box and a heater arranged in the box, characterized in that: The box body is also provided with a feed roller group, a winding roller group and a discharge roller group, the feed roller group is arranged at the discharge side of the box body, the winding roller group is close to the feeding side of the box body, and the discharge roller group is arranged at the bottom of the box body, the printing material enters the box body from the feeding port on the feeding side of the box body, is wound into the winding roller group through the feed roller group, and is wound into the discharge roller group after the winding roller group extends back and forth in a zigzag shape to the discharge side of the winding roller group, and then extends to the discharge port on the discharge side of the box body after passing through the discharge roller group; The heater comprises a first heating box, a heating air knife and a second heating box; the first heating box is located above the printing material between the material inlet of the box body and the feeding roller group, and the air outlet of the first heating box faces the printing material; the heating air knife is located below the printing material passing through the feeding roller group, and its air outlet faces the printing material; the second heating box is arranged at the rear side of the box body, and its air outlet blows from the rear to the front toward the printing material wound on the winding roller group; The feed roller group includes a first fixed roller, a second fixed roller and a floating roller, the first fixed roller is located at the discharge side of the box body, the second fixed roller is located at the feed side of the winding roller group, the floating roller is slidably arranged in the vertical direction, and is located in the middle and lower part of the first fixed roller and the second fixed roller, the printing material is wound into the first fixed roller, and after the floating roller changes direction, it is wound into the second fixed roller, and enters the winding roller group through the second fixed roller; the heating air knife is located below the printing material between the first fixed roller and the floating roller; The material wrapping roller group comprises a plurality of upper rollers and lower rollers corresponding to the upper rollers, the upper rollers are arranged at intervals, the lower rollers are located below the corresponding upper rollers, and are staggered with the corresponding lower rollers; The discharge roller group includes a first discharge roller, a second discharge roller, a third discharge roller and a fourth discharge roller which are arranged in sequence from the feeding side of the box to the discharging side of the box. The printing material is wound around the first discharge roller after being discharged by the winding roller group, and enters the discharge port of the box after passing through the second discharge roller, the third discharge roller and the fourth discharge roller in sequence.

2. The drying device of the screen printing machine according to claim 1, characterized in that: An upper beam and a lower beam which are arranged opposite to each other up and down are arranged in the box body, the upper roller is arranged on the upper beam, and the lower roller is arranged on the lower beam.

3. The drying device of the screen printing machine according to claim 1, characterized in that: The discharge port of the box body is located above the third discharge roller, and the fourth discharge roller is arranged on the inner side of the discharge port of the box body.

4. The drying device of the screen printing machine according to claim 1, characterized in that: A material press is arranged outside the material discharge port of the box body.

5. The drying device of the screen printing machine according to claim 4, characterized in that: A receiving roller is arranged below the press.

6. The drying device of the screen printing machine according to claim 1, characterized in that: Rollers are arranged at the bottom of the box.

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