CN214449469U

CN214449469U - Gravure press with two-sided drying device

Info

Publication number: CN214449469U
Application number: CN202120144856.1U
Authority: CN
Inventors: 郑旭; 盛鑫炜; 周宝华
Original assignee: Hangzhou Xinle Decoration Material Co ltd
Current assignee: Hangzhou Xinle Decoration Material Co ltd
Priority date: 2021-01-19
Filing date: 2021-01-19
Publication date: 2021-10-22
Anticipated expiration: 2031-01-19

Abstract

The application relates to the technical field of printing equipment, in particular to an intaglio printing press with a double-sided drying device. The utility model provides an intaglio press with two-sided drying device, which comprises a frame, rotate printing plate roller and the stoving case of fixed connection in the frame of connection in the frame, paper feed mouth and exit slot have been seted up on the lateral wall that the stoving case is close to printing plate roller one side, the stoving incasement is provided with the conduction subassembly, the conduction subassembly includes a plurality of paper feed rollers and a plurality of exit roller, a plurality of paper feed rollers rotate the bottom of connecting at the stoving case, a plurality of exit roller rotate the top of connecting at the stoving case, the bottom of stoving case is equipped with the cadre that is used for drying the stock on the paper feed roller, stoving roof portion is equipped with the cadre that is used for drying the stock on the exit roller. All be provided with the drying part through drying roof portion and bottom, the conduction of rethread conduction subassembly makes the stock through two drying parts in the stoving incasement, has realized the two-sided stoving of stock, has promoted the stoving effect.

Description

Gravure press with two-sided drying device

Technical Field

The application relates to the technical field of printing equipment, in particular to an intaglio printing press with a double-sided drying device.

Background

An intaglio printing press is a machine that performs printing using intaglio plates. The image-text part of the printing plate is concave, and the blank part is on the same plane with the excircle of the printing plate cylinder. Intaglio printing presses typically require multiple inking passes to print a substrate. After each inking, the printing stock enters a drying procedure to dry the redundant printing ink on the surface of the printing stock, so that the pollution of the redundant printing ink on the surface of the printing stock in the subsequent printing process is avoided.

In the currently adopted hot air drying method, a drying device is arranged between two inking processes, and the ink on the surface of a printing stock is dried by hot air sprayed by the drying device. However, in order to ensure the printing efficiency in the printing process, the conduction speed of the conduction assembly is high, so that the stay time of the printing stock in the drying box is short, and the drying effect is not ideal.

SUMMERY OF THE UTILITY MODEL

In order to promote gravure press's stoving effect, this application provides a gravure press with two-sided drying device.

The application provides a pair of gravure press with two-sided drying device has adopted following technical scheme:

the utility model provides an intaglio press with two-sided drying device, includes frame, rotates printing plate roller and the stoving case of fixed connection in the frame of connecting in the frame, paper feed mouth and exit slot have been seted up on the lateral wall that the stoving case is close to printing plate roller one side, the stoving incasement is provided with the conduction subassembly, the conduction subassembly includes a plurality of paper feed rolls and a plurality of exit paper rollers, and is a plurality of paper feed roll rotates the bottom of connecting at the stoving case, and is a plurality of exit paper roller rotates the top of connecting at the stoving case, the bottom of stoving case is equipped with the cadre that dries that is used for drying the stock on the paper feed roll, stoving roof portion is equipped with the cadre that dries the stock on the exit paper roller.

Through adopting above-mentioned technical scheme, under conduction subassembly's conduction effect, make the stock along the roof and the diapire motion of stoving case to bottom and top at the stoving case all are provided with the drying portion, make the stock accept twice stoving in the stoving case, promoted the effect of drying under the condition that does not influence conduction velocity.

Optionally, the paper feed roller of keeping away from paper feed mouth one end is the activity paper feed roller, the exit paper roller of keeping away from paper exit mouth one end is the activity exit paper roller, the adjustment tank has been seted up along the direction of height of stoving case on the both sides lateral wall that rotates to be connected with the paper feed roller, the activity paper feed roller all is equipped with the rotation piece with the both ends of activity exit paper roller, it slides with the adjustment tank and links to each other to rotate the piece, it is equipped with the mounting that is used for the fixed rotation piece to rotate on the piece to rotate.

Through adopting above-mentioned technical scheme, adjust the position of activity paper feed roller and activity exit paper roller in the adjustment tank to make the distance between the stock of operation and the stoving portion on paper feed roller and the exit paper roller change, can reach the demand of different stoving effects.

Optionally, the rotation piece includes the sliding block and rotates the turning block of connection on the sliding block, the turning block has been close to the activity and has been advanced paper roll and the one end of activity exit paper roller and has been seted up the spread groove, be equipped with the internal thread on the cell wall of spread groove, all be equipped with the external screw thread on the week lateral wall at activity paper roll and activity exit paper roller both ends, the both ends of activity paper roll and activity exit paper roller all link to each other with the spread groove screw thread.

By adopting the technical scheme, the rotating block and the fixed block are connected in a rotating mode, the fixed block is connected with the adjusting groove in a sliding mode, and the movable paper feeding roller, the movable paper outlet roller and the rotating block are connected through threads, so that the movable paper feeding roller and the movable paper outlet roller can normally rotate. The screw thread connection makes the movable paper feeding roller and the movable paper discharging roller convenient to disassemble and replace.

Optionally, the mounting includes fixed plate and fixing bolt, fixed plate fixed connection is in the both sides of sliding block, the fixed orifices has been seted up on the fixed plate, fixing bolt sliding connection is in the fixed orifices, a plurality of screw holes have been seted up along the length direction of adjustment tank on the stoving case lateral wall of adjustment tank both sides, fixing bolt passes the one end of fixed orifices and links to each other with screw hole screw thread.

Through adopting above-mentioned technical scheme, after the sliding block slides to the assigned position, twist fixing bolt to the screw hole of corresponding, the position of fixed plate is fixed under fixing bolt's effect, and then makes the position of sliding block fixed, has realized that the activity advances paper roll and the fixed of activity exit paper roller after the regulation in the adjustment tank.

Optionally, the stoving portion includes direct combustion chamber, hot-blast chamber, first fan and blowing pipe, hot-blast chamber sets up on the lateral wall of stoving roof and diapire, direct combustion chamber sets up the one side of keeping away from the stoving case at hot-blast chamber and is linked together with hot-blast chamber, install first fan in the hot-blast chamber, fixedly connected with blowing pipe on the output of first fan, the ventilation hole has all been seted up on stoving roof and the diapire, the blowing pipe is kept away from the one end that links to each other with first fan and is linked together with the ventilation hole.

By adopting the technical scheme, the reaction in the direct combustion chamber generates hot air, the hot air enters the hot air chamber from the direct combustion chamber, the hot air entering the hot air chamber enters the drying box through the blowing pipe under the action of the first fan, and the hot air in the drying box dries the printing stock.

Optionally, the inner side walls of the bottom wall and the top wall of the drying box are fixedly connected with an air guide box, a plurality of air guide openings are formed in the air guide box, a plurality of air nozzles are fixedly connected to the outer side wall of the side, far away from the inner side wall of the drying box, of the air guide box, the air nozzles are communicated with the air guide openings, and the end, far away from the first fan, of the blowing pipe is communicated with the inner cavity of the air guide box.

By adopting the technical scheme, hot air enters the air guide box through the air blowing pipe, the hot air in the air guide box is blown out through the air nozzle, and the hot air blown out from the air nozzle uniformly dries the printing stock running in the drying box.

Optionally, an air outlet is formed in the side wall of one side of the drying box, an air outlet pipe is fixedly connected to the outer side wall of the side of the air outlet formed in the drying box, the air outlet pipe is communicated with the air outlet, one end, far away from the drying box, of the air outlet pipe is connected with a second fan, and the air exhaust volume of the air outlet pipe is larger than the air inlet volume of the air blowing pipe.

By adopting the technical scheme, the hot air after drying the printing stock leaves the drying box through the air outlet pipe under the action of the second fan, and the air exhaust volume of the air outlet pipe is greater than the air inlet volume of the air blowing pipe, so that the drying box is in a negative pressure state, and the hot air can flow conveniently.

Optionally, an air return hole is formed in the air outlet pipe, an air return pipe is fixedly connected to the outer side wall of the air outlet pipe, the air return pipe is communicated with the air return hole, and one end, far away from the air return hole, of the air return pipe is communicated with the hot air chamber.

By adopting the technical scheme, the hot air discharged from the air outlet pipe still has a small amount of heat, and the hot air enters the hot air chamber again through the air return pipe to be mixed for recycling, so that the waste of heat is reduced.

In summary, the present application has at least one of the following advantages:

1. through set up two drying portions at the stoving incasement, make the stock carry out two-sided stoving at the stoving incasement, promoted the stoving effect under the prerequisite that does not influence drying-machine functioning speed.

2. Through setting up activity paper feed roller and activity exit paper roller, can adjust the distance between stock and two drying portions and then obtain different stoving effects.

Drawings

FIG. 1 is a schematic view of the overall structure of a double-sided drying device according to an embodiment of the present application;

FIG. 2 is a sectional view of a double-sided drying apparatus according to an embodiment of the present application;

FIG. 3 is a schematic view showing the entire structure of a rotating member according to an embodiment of the present application;

FIG. 4 is an enlarged view of A in FIG. 2;

fig. 5 is an enlarged view of B in fig. 2.

Reference numerals: 1. a frame; 2. a printing plate roller; 3. a drying box; 31. a paper inlet; 32. a paper outlet; 33. fixing a paper feeding roller; 34. a movable paper feeding roller; 35. a movable paper outlet roller; 36. fixing a paper outlet roller; 37. an adjustment groove; 38. a slider; 381. rotating the block; 382. connecting grooves; 383. a fixing plate; 384. fixing the bolt; 385. a threaded hole; 39. an air outlet pipe; 391. a second fan; 392. a return air duct; 4. a direct combustion chamber; 5. a hot air chamber; 6. a wind guide box; 41. an air inlet pipe; 51. a first fan; 52. a blowpipe; 61. a wind guide opening; 62. and a blast nozzle.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses gravure press with two-sided drying device. Referring to fig. 1, an intaglio printing press with a double-sided drying device comprises a frame 1, three printing plates 2 rotatably connected to the frame 1, and three drying boxes 3 fixedly mounted on the frame, wherein the three printing plates 2 and the three drying boxes 3 are alternately arranged on the frame 1 according to the transport direction of a printing material on the frame 1, and each drying box 3 is arranged behind the printing plate 2. After printing is carried out on the printing stock through the printing plate roller 2 each time, the printing stock enters the drying box 3 to be dried for one time.

Referring to fig. 2, a paper inlet 31 and a paper outlet 32 are formed in a side wall of the drying box 3 close to the printing plate roller 2, the paper inlet 31 is disposed at the bottom of the drying box 3, and the paper outlet 32 is disposed at the top of the drying box 3. Two drying portions used for drying the printing stock and a conduction assembly used for transmitting the printing stock are arranged in the drying box 3, and the two drying portions are respectively arranged on the top wall of the drying box 3 and the bottom wall of the drying box 3. The conduction subassembly includes two paper feed rollers and two exit paper rollers, and paper feed roller rotates to be connected in the bottom of stoving case 3, and exit paper roller rotates to be connected at the top of stoving case 3. The feed roller near the end of the feed port 31 is a fixed feed roller 33, and the feed roller far from the end of the feed port 31 is a movable feed roller 34. The paper output roller near one end of the paper output port 32 is a fixed paper output roller 36, and the paper output roller far from one end of the paper output port 32 is a movable paper output roller 35. The substrate passes through drying box 3 in the order of conduction along feed opening 31, stationary feed roller 33, movable feed roller 34, movable exit roller 35, stationary exit roller 36 and exit opening 32 and is dried as it passes through the two drying sections.

Referring to fig. 3 and 4, the movable paper feeding roller 34 and the movable paper discharging roller 35 have rotating members connected to both ends thereof, and the rotating members include a sliding block 38 and a rotating block 381 rotatably connected to the sliding block 38 through bearings. The end face of one end of the rotating block 381 is provided with a connecting groove 382, the groove wall of the connecting groove 382 is provided with internal threads, the roller shafts of the movable paper feeding roller 34 and the movable paper discharging roller 35 are provided with external threads, and the roller shafts are in threaded connection with the connecting groove 382. Drying box 3 has seted up adjustment tank 37 along drying box 3's direction of height on the both sides lateral wall that is connected with paper feed roller and exit roller rotatably, and sliding block 38 links to each other with adjustment tank 37 slip.

Referring to fig. 3 and 4, the two ends of the sliding block 38 are further provided with fixing members for fixing the position of the sliding block 38 in the adjusting groove 37, and the fixing members include two fixing plates 383 and two fixing bolts 384. The two sides of the sliding block 38 are fixedly connected with fixing plates 383, fixing holes are formed in the two fixing plates 383, and fixing bolts 384 are slidably connected in the fixing holes. Six threaded holes 385 are formed in the side wall of the drying box 3 on two sides of the adjusting groove 37 at equal intervals, and fixing bolts 384 penetrate through one ends of the fixing holes to be in threaded connection with the threaded holes 385. After the movable paper feeding roller 34 and the movable paper discharging roller 35 are adjusted to the proper positions, the fixing bolts 384 are screwed into the corresponding threaded holes 385, so that the positions of the movable paper feeding roller 34 and the movable paper discharging roller 35 are fixed, and the adjustment of the distance between the printing materials and the drying part in the transportation process is realized.

Referring to fig. 2, the drying part includes a direct combustion chamber 4, a hot air chamber 5, a first fan 51, and a blowing pipe 52. The hot air chamber 5 is arranged on the outer side walls of the top wall and the bottom wall of the drying box 3, and the direct combustion chamber 4 is arranged on one side of the hot air chamber 5 far away from the drying box 3 and communicated with the hot air chamber 5. An air inlet pipe 41 for introducing natural gas is arranged on one side of the direct combustion chamber 4, and a direct combustion engine for reacting natural gas is arranged in the direct combustion chamber 4. First fan 51 sets up in hot-blast chamber 5, and first fan 51's air outlet links to each other with the one end of blowing pipe 52 is fixed, has all seted up the ventilation hole on the roof of stoving case 3 and the diapire of stoving case 3, and the ventilation hole is worn to locate by the one end that links to each other with the fan is kept away from to blowing pipe 52. When the drying part works, natural gas passes through the air inlet pipe 41 and directly burns in the chamber 4, then hot air is generated through the reaction of the direct-fired machine, the hot air is transmitted into the hot air chamber 5, and under the action of the first fan 51, the hot air is blown into the drying box 3 through the blowing pipe 52 to dry the printing stock.

Referring to fig. 2 and 4, air guide boxes 6 are fixedly mounted on the inner side walls of the top wall and the bottom wall of the drying box 3, a plurality of air guide openings 61 are formed in the side wall of one side, close to the printed material, of each air guide box 6, air nozzles 62 are mounted on the outer side wall of one side, far away from the side connected with the inner side wall of the drying box 3, of each air nozzle 62, and each air nozzle 62 is communicated with one air guide opening 61. After the blowpipe 52 blows out the hot air, the hot air is uniformly distributed into each air guide opening 61 under the action of the air guide plate and then blown out from the air nozzle 62, so that the uniformity during drying is improved.

Referring to fig. 1, the sidewall of one side of the drying box 3 is further provided with an air outlet, the outer sidewall of the other side of the air outlet is provided with an air outlet pipe 39, and the air outlet pipe 39 is communicated with the air outlet. The end of the air outlet pipe 39 far away from the air outlet is connected with a second fan 391, and the air exhaust volume of the air outlet pipe 39 is larger than the sum of the air intake volumes of the two air blowing pipes 52, so that the whole inside of the drying box 3 presents negative pressure.

Referring to fig. 1, the air outlet pipe 39 is further provided with an air return hole, an air return pipe 392 is fixedly connected to the outer side wall of the air outlet pipe 39, and the air return pipe 392 is communicated with the air return hole. The end of the return air pipe 392 remote from the end communicating with the return air pipe 392 communicates with the hot air chamber 5. Part of the hot air in the air outlet pipe 39 enters the hot air chamber 5 from the air return pipe 392, so that the heat of the hot air is fully utilized.

The implementation principle of the gravure printing machine with the double-sided drying device is as follows: before the gravure printing machine starts working, the slide blocks 38 at both ends of the movable paper feed roller 34 and the movable paper discharge roller 35 are adjusted to a suitable height, and the position of the slide blocks 38 is fixed by the fixing bolts 384. When the gravure printing machine starts to work, the printing material is printed into the drying box 3 through the printing plate roller 2, and moves in the drying box 3 along the conduction sequence of the paper feeding port 31, the fixed paper feeding roller 33, the movable paper feeding roller 34, the movable paper discharging roller 35, the fixed paper discharging roller 36 and the paper discharging port 32.

When the printing material passes through the two drying portions, the first fan 51 blows hot air in the hot air chamber 5 to the air guide box 6, and the hot air is blown to the printing material through the air nozzle 62 under the action of the air guide box 6. The second fan 391 extracts the hot air used for drying, thereby realizing circulation of the hot air.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. An intaglio printing press with a double-sided drying device comprises a frame (1), a printing plate roller (2) rotationally connected to the frame (1) and a drying box (3) fixedly connected to the frame (1), it is characterized in that a paper inlet (31) and a paper outlet (32) are arranged on the side wall of the drying box (3) close to one side of the printing plate roller (2), a conduction assembly is arranged in the drying box (3), the conduction assembly comprises a plurality of paper feeding rollers and a plurality of paper outlet rollers, the paper feeding rollers are rotationally connected to the bottom of the drying box (3), the paper outlet rollers are rotationally connected to the top of the drying box (3), the bottom of the drying box (3) is provided with a drying part for drying the printing stock on the paper feeding roller, the drying part used for drying the printing stock on the paper outlet roller is arranged at the top of the drying box (3), and an air outlet is formed in the side wall of one side of the drying box (3).

2. The intaglio printing press with the double-sided drying device according to claim 1, wherein the paper feeding roller far away from one end of the paper feeding port (31) is a movable paper feeding roller (34), the paper discharging roller far away from one end of the paper discharging port (32) is a movable paper discharging roller (35), the side walls of two sides of the paper feeding roller are rotatably connected with the adjusting groove (37) formed in the height direction of the drying box (3), rotating members are arranged at two ends of the movable paper feeding roller (34) and the movable paper discharging roller (35), the rotating members are connected with the adjusting groove (37) in a sliding manner, and fixing members for fixing the rotating members are arranged on the rotating members.

3. The intaglio printing press with the double-sided drying device according to claim 2, wherein the rotating member comprises a sliding block (38) and a rotating block (381) rotatably connected to the sliding block (38), one end of the rotating block (381) close to the movable paper feeding roller (34) and the movable paper discharging roller (35) is provided with a connecting groove (382), the wall of the connecting groove (382) is provided with an internal thread, the peripheral side walls of the two ends of the movable paper feeding roller (34) and the movable paper discharging roller (35) are respectively provided with an external thread, and the two ends of the movable paper feeding roller (34) and the movable paper discharging roller (35) are respectively in threaded connection with the connecting groove (382).

4. The intaglio printing press with the double-sided drying device according to claim 3, wherein the fixing member comprises a fixing plate (383) and a fixing bolt (384), the fixing plate (383) is fixedly connected to both sides of the sliding block (38), the fixing plate (383) is provided with a fixing hole, the fixing bolt (384) is slidably connected in the fixing hole, the side walls of the drying box (3) on both sides of the adjusting groove (37) are provided with a plurality of threaded holes (385) along the length direction of the adjusting groove (37), and the fixing bolt (384) penetrates through one end of the fixing hole to be in threaded connection with the threaded holes (385).

5. The intaglio printing press with double-sided drying device according to claim 1, the drying part comprises a direct combustion chamber (4), a hot air chamber (5), a first fan (51) and a blowpipe (52), the hot air chamber (5) is arranged on the outer side walls of the top wall and the bottom wall of the drying box (3), the direct combustion chamber (4) is arranged on one side of the hot air chamber (5) far away from the drying box (3) and communicated with the hot air chamber (5), a direct combustion engine which generates hot air through natural gas is arranged in the direct combustion chamber (4), a first fan (51) is arranged in the hot air chamber (5), the output end of the first fan (51) is fixedly connected with a blowpipe (52), the top wall and the bottom wall of the drying box (3) are provided with vent holes, and one end of the blowing pipe (52) far away from the first fan (51) is communicated with the vent holes.

6. The intaglio printing press with the double-sided drying device according to claim 5, wherein the inner side walls of the bottom wall and the top wall of the drying box (3) are fixedly connected with an air guide box (6), a plurality of air guide openings (61) are formed in the air guide box (6), a plurality of air nozzles (62) are fixedly connected to the outer side wall of the air guide box (6) far away from the side connected with the inner side wall of the drying box (3), the air nozzles (62) are communicated with the air guide openings (61), and one end of the blowing pipe (52) far away from the side connected with the first fan (51) is communicated with the inner cavity of the air guide box (6).

7. The intaglio printing press with the double-sided drying device according to claim 1, wherein an air outlet pipe (39) is fixedly connected to an outer side wall of the drying box (3) on the side where the air outlet is formed, the air outlet pipe (39) is communicated with the air outlet, a second fan (391) is connected to one end, far away from the end connected with the drying box (3), of the air outlet pipe (39), and the air exhaust volume of the air outlet pipe (39) is greater than the air intake volume of the air blowing pipe (52).

8. The intaglio printing press with the double-sided drying device according to claim 7, wherein the air outlet pipe (39) is provided with an air return hole, the outer side wall of the air outlet pipe (39) is fixedly connected with an air return pipe (392), the air return pipe (392) is communicated with the air return hole, and the end of the air return pipe (392) far away from the air return hole is communicated with the hot air chamber (5).