CN217863305U

CN217863305U - Drying device for flexo printing production line

Info

Publication number: CN217863305U
Application number: CN202221158035.4U
Authority: CN
Inventors: 陈乐宁; 卢军红; 张秦龙; 党斌; 王凯; 翟微波
Original assignee: Shaanxi Jinye Printing Co ltd; Shenzhen Ruifeng New Material Technology Group Co ltd; Shaanxi Yanyin Packaging Technology Co ltd
Current assignee: Shaanxi Jinye Printing Co ltd; Shenzhen Ruifeng New Material Technology Group Co ltd; Shaanxi Yanyin Packaging Technology Co ltd
Priority date: 2022-05-13
Filing date: 2022-05-13
Publication date: 2022-11-22
Anticipated expiration: 2032-05-13

Abstract

The application relates to a drying device for a flexible printing production line, which comprises a feeding table, a drying box, a material presenting rack and a drying assembly; the material presenting frame is arranged on the feeding table and is used for presenting a printing stock; the drying box is arranged on the feeding table, and openings are formed in two ends of the drying box along the feeding direction; the drying component comprises a heating pipe and a ventilation piece, the heating pipe is horizontally distributed on the upper side and the lower side of the material presenting rack, and a mounting groove for the heating pipe to be horizontally inserted is formed in the drying box; the ventilation piece is arranged on one side, deviating from the printing stock, of the heating tube, and can be used for introducing hot air into the drying box. The application can improve the drying effect of the printing ink on the printing stock.

Description

Drying device for flexible printing production line

Technical Field

The application relates to the field of printing equipment, in particular to a drying device for a flexo printing production line.

Background

The flexographic printing machine is a printing apparatus which uses fluid ink with high fluidity, the ink is transferred to the image-text part of the printing plate by an ink fountain roller and an anilox roller and is inked, then printing pressure is applied by a pressing roller to transfer the ink on the printing plate to a printing stock, and finally, the printing process is finished through a drying surface. The printing stock can be hard materials such as single paper, paperboard, corrugated paper and the like, and can also be in a roll form, such as the materials of self-adhesive paper, newspaper and the like. The flexographic printing machine has the advantages of simple machine structure, convenient operation, strong adaptability of cause materials, small printing pressure, low printing cost and good quality of printed products, and gradually becomes a mainstream printing mode.

The flexographic printing machine mainly comprises four components, including an uncoiling feeding component, a printing component, a drying component and a rewinding receiving component; the printing part is provided with a plurality of parts, printing stocks are printed for a plurality of times, after the drying part is correspondingly provided with each printing part flow, the printed stocks are dried, next printing is carried out, and finally, the printing stocks are integrally dried.

In view of the above-mentioned related technologies, the length of the belt between two printing units (units) on the flexographic printing machine is constant, and the flexographic printing speed is high, i.e. the time for any printing position on the material roll to pass through the drying device is short, and the inventor believes that the drying effect is poor.

SUMMERY OF THE UTILITY MODEL

In order to improve the drying effect of printing ink on the stock, this application provides a flexographic printing production line drying device.

The application provides a pair of flexographic printing production line drying device adopts following technical scheme:

a drying device for a flexible printing production line comprises a feeding table, a drying box, a material presenting rack and a drying assembly; the material presenting frame is arranged on the feeding table and is used for presenting and connecting printing stocks; the drying box is arranged on the feeding table, and two ends of the drying box in the feeding direction are provided with openings; the drying component comprises a heating pipe and a ventilation part, the heating pipe is horizontally distributed on the upper side and the lower side of the material presenting rack, and an installation groove for the heating pipe to be horizontally inserted is formed in the drying box; the ventilation piece is arranged on one side, deviating from the printing stock, of the heating tube, and hot air can be introduced into the drying box.

By adopting the technical scheme, the printing stock enters the drying box after printing ink is printed, the heating tube heats the air in the drying box, the ventilation piece is started at the same time, hot air is introduced into the drying box, and then the printing stock passing through the drying box is dried, so that the solvent in the printing ink is volatilized, and the printing ink is solidified on the printing stock; the heating tube is detachably arranged on the drying box through the mounting groove, so that the ink layer is completely dried as far as possible, and a smearing fault is avoided when rewinding or stacking; can control the stock through the time of heat source through control heating tube quantity, the suitability is better, and the hot-blast that the cooperation ventilation piece provided blows the stock fast with the heat to improve the drying effect of printing ink on the stock.

Optionally, two ends of the heating tube are connected with a sliding rod in a sliding manner along the axial direction, one end of the sliding rod, which is far away from the heating tube, is provided with a limiting ring, and the limiting ring is tightly abutted to the inner wall of the mounting groove; and the sliding rod is provided with a tight abutting spring, and the tight abutting spring can enable the sliding rod to move towards one end far away from the heating tube.

Through adopting above-mentioned technical scheme, the slide bar, the spacing ring that set up and support tight spring, can tightly support at the mounting groove inner wall under the spring action that supports tight spring, reduce rocking of heating tube to improve the steadiness of heating tube installation, be convenient for dry the product.

Optionally, one side of any one of the limiting rings, which is close to the mounting groove, is provided with a conducting strip, the conducting strip is provided with a conducting strip corresponding to the inner wall of the mounting groove, and the conducting strip is used for being electrically connected with a power supply.

Through adopting above-mentioned technical scheme, the conducting strip and the busbar of setting for the heating tube is installed behind the mounting groove, and the conducting strip contacts and electrically conducts with the busbar, realizes the circular telegram of heating tube when the connection can be dismantled to the heating tube.

Optionally, the ventilation component comprises an air blower, a heating box, an air inlet pipe, a circulating pipe and a treatment box, wherein one end of the air inlet pipe is communicated with the drying box, and the other end of the air inlet pipe is communicated with the air blower; one end of the circulating pipe is communicated with the drying box, and the other end of the circulating pipe is communicated with the treatment box.

Through adopting above-mentioned technical scheme, the air-blower, heating cabinet, air-supply line, circulating pipe and the processing case that set up, give through the air-blower pressure, the heating cabinet heating, the air-supply line air supply provides the hot air for in the drying cabinet, are convenient for dry to the printing ink on the stock, collect the gas in the drying cabinet through the circulating pipe, when the steam source constantly gets into the drying cabinet, produce and have volatile organic matter and transport along with the circulating pump and handle through processing case, ensure operational environment's quality.

Optionally, the drying box further comprises a shielding curtain, and the shielding curtain is arranged at openings at two ends of the drying box.

Through adopting above-mentioned technical scheme, the curtain that shields of setting can seal at drying cabinet both ends opening part, and the heat that reduces in the drying cabinet scatters and disappears under the prerequisite of guaranteeing the stock business turn over, and then improves the drying effect of printing ink on the stock.

Optionally, the drying box is rotatably connected with a rotating shaft near the two ends, and the shielding curtain is rolled on the rotating shaft; one end of the rotating shaft is coaxially and slidably connected with a prismatic rotary head, and a sink groove embedded with the rotary head is formed in the side wall of the drying box.

Through adopting above-mentioned technical scheme, the pivot of setting is through adjusting the heavy groove of turn roll-off and rotating, drives to shield the curtain and roll up and establish in the pivot to the height of curtain is shielded in the thickness control according to the stock, and the suitability is high, will turn the head and slide into heavy groove, realizes the fixed of countershaft, and then fixes the height of shielding the curtain.

Optionally, one end of the drying box, which is close to the discharge end, is rotatably connected with a pair of cooling rollers, and the cooling rollers are hollow and used for introducing cooling water.

By adopting the technical scheme, the ink layer is heated during drying and possibly in a sticky state, and the arranged cooling roller can cool the dried printing stock, so that the ink is cooled on one hand, and adverse effects on the ink on the printing plate are reduced; and on the other hand, the coil stock of the printing stock is cooled so as to avoid the bad phenomena of shrinkage, warping, thermal expansion and the like after the coil stock is heated and dried.

Optionally, a separation curtain having the same structure as the shielding curtain is arranged on the inner wall of the drying box, and the separation curtain is arranged between the drying assembly and the cooling roller.

Through adopting above-mentioned technical scheme, the partition curtain that sets up can be two parts with the space separation in the drying cabinet, and partly heats, and partly cooling reduces the heat transfer of two parts, guarantees respective drying and cooling effect.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the heating tube is detachably arranged on the drying box through the mounting groove, so that the ink layer is completely dried as far as possible, and a smearing fault is avoided when rewinding or stacking; the time of the printing stock passing through the heat source can be controlled by controlling the number of the heating tubes, the applicability is better, and the heat is quickly blown to the printing stock by matching with the hot air provided by the ventilation piece, so that the drying effect of the printing ink on the printing stock is improved;

2. the sliding rod, the limiting ring and the abutting spring are arranged and can tightly abut against the inner wall of the mounting groove under the elastic force action of the abutting spring, so that the shaking of the heating tube is reduced, the mounting stability of the heating tube is improved, and the product is convenient to dry;

3. the air blower, the heating box, the air inlet pipe, the circulating pipe and the processing box are arranged, pressure is supplied by the air blower, the heating box is heated, and air is supplied by the air inlet pipe to provide hot air for the drying box, so that printing ink on a printing stock is dried, gas in the drying box is collected by the circulating pipe, when a hot gas source continuously enters the drying box, organic matters with volatility are produced and transported out along with the circulating pump and are processed by the processing box, and the quality of a working environment is guaranteed.

Drawings

Fig. 1 is an overall structure schematic diagram of a drying device in a flexo printing production line in an embodiment of the present application.

Fig. 2 isbase:Sub>A sectional view of the drying box of fig. 1 taken along the directionbase:Sub>A-base:Sub>A.

Fig. 3 is a schematic view of an installation structure of the heat generating tube of fig. 2.

Fig. 4 is a sectional view of the mounting groove of fig. 1.

Fig. 5 is an exploded view of the blind shaft of fig. 1 in an axial direction.

Description of reference numerals: 1. a feeding table; 2. a drying oven; 21. mounting grooves; 3. a material-presenting rack; 4. a drying assembly; 41. a heat-generating tube; 42. a slide bar; 43. a limiting ring; 44. the spring is tightly propped; 45. a conductive sheet; 46. a conductive strip; 461. an insulating layer; 47. a ventilation member; 471. a blower; 472. a heating box; 473. an air inlet pipe; 474. a circulation pipe; 475. a treatment tank; 5. a cooling roll; 6. a blind curtain; 61. a rotating shaft; 62. turning the head; 63. sinking a groove; 7. a separating curtain.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses flexo printing production line drying device. Referring to fig. 1 and 2, the drying device of the flexible printing production line comprises a feeding table 1, a drying box 2, a material presenting rack 3, a drying assembly 4 and a pair of cooling rollers 5; the drying box 2 is welded on the feeding table 1, and the drying box 2 is arranged along openings at two ends of the feeding direction; the material-presenting frame 3 adopts two sets of rotating rollers, and one set of rotating rollers is provided with two rotating rollers. One group of rotating rollers are rotatably connected to one end, close to the feeding end of the drying box 2, and the other group of rotating rollers are rotatably connected to the inner wall of the drying box 2; the cooling roller 5 is rotatably connected to one end, close to the discharging end of the drying box 2, and the cooling roller 5 is hollow and used for introducing cooling water. The rotating roller and the cooling roller 5 are both horizontal and vertical to the moving direction of the printing stock. And the drying component 4 is arranged between the two groups of rotating rollers and is used for drying the printing stock.

Referring to fig. 2, the drying assembly 4 includes a heating tube 41, a sliding rod 42, a limiting ring 43, a holding spring 44 and a ventilation member 47, wherein the heating tube 41 is an infrared heating tube; heating tube 41 is parallel and distributes in being work or material rest 3 upper and lower both sides with changeing the roller, and the coaxial sliding connection of slide bar 42 is at heating tube 41 both ends, and the welding of spacing ring 43 is kept away from heating tube 41 one end at slide bar 42, has seted up on drying cabinet 2 and has supplied spacing ring 43 level male mounting groove 21. The abutting spring 44 is sleeved on the sliding rod 42, one end of the abutting spring 44 is welded on the heating tube 41, the other end of the abutting spring 44 is welded on the limiting ring 43, and the abutting spring 44 enables the sliding rod 42 to tend to move towards one end close to the inner wall of the mounting groove 21 and tightly abut against the inner wall of the mounting groove 21.

Referring to fig. 3 and 4, a conductive sheet 45 is installed on one side of any one of the limiting rings 43 close to the installation groove 21, the conductive sheet 45 is in conductive connection with the heating tube 41, a conductive strip 46 is arranged on the inner wall of the installation groove 21, and the conductive strip 46 is used for being electrically connected with a power supply; both ends of the conductive strip 46 are wrapped by the insulating layer 461, so that the safety performance is improved.

Referring to fig. 1 and 2, the ventilation member 47 includes a blower 471, a heating box 472, an air inlet tube 473, a circulation tube 474 and a treatment box 475, wherein one end of the air inlet tube 473 is in flange communication with the blower 471, and the other end is provided as two branches and is respectively disposed on the top wall and the bottom wall of the drying box 2 and is in communication with the inner cavity of the drying box 2, the blower 471 and the heating box 472 are both installed on the drying box 2, and the heating box 472 is installed on the general path of the air inlet tube 473 to heat the air in the air inlet tube 473. One end of the circulating pipe 474 is in flange communication with the side wall of the drying box 2, and the other end is in flange communication with the processing box 475 to process the volatile organic compounds in the drying box 2.

Referring to fig. 2, the drying box 2 is provided with two sets of shielding curtains 6 and a set of separating curtains 7 having the same structure, the two sets of shielding curtains 6 are respectively disposed at openings at both ends of the drying box 2, and the other separating curtain 7 is disposed between the rotating roller and the cooling roller 5. Referring to fig. 5, the shielding curtain 6 is rotatably connected to the drying box 2 by a rotating shaft 61, and the shielding curtain 6 is wound on the rotating shaft 61; the rotating shaft 61 is parallel to the rotating roller and penetrates out of the drying box 2, one end of the rotating shaft 61 is coaxially and slidably connected with a prismatic rotating head 62, and a sunk groove 63 embedded with the rotating head 62 is formed in the side wall of the drying box 2.

The implementation principle of a drying device of a flexible printing production line is as follows: before printing, the heating tube 41 is installed, the limiting ring 43 is tightly abutted on the inner wall of the installation groove 21 under the elastic force action of the abutting spring 44 and slides to a corresponding position, at the moment, the conducting strip 45 is contacted with the conducting strip 46 and is electrified, and the heating tube 41 starts to generate heat. After printing ink is printed on a printing stock, the printing stock enters the drying box 2, the heating pipe 41 heats the air in the drying box 2, the air is supplied to the pressure by the air blower 471, the heating box 472 heats the air, the air inlet pipe 473 supplies air to provide hot air in the drying box 2 and dry the printing ink on the printing stock, the circulating pipe 474 collects the air in the drying box 2, when the hot air continuously enters the drying box 2, generated and volatile organic matters are transported out along with the circulating pipe 474 and are processed by the processing box 475, and finally the printing stock is cooled by the cooling roller 5, so that the drying of the sequential printing is completed.

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: equivalent changes in structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a flexographic printing production line drying device which characterized in that: comprises a feeding table (1), a drying box (2), a material presenting rack (3) and a drying component (4);

the material presenting frame (3) is arranged on the feeding table (1) and is used for presenting a printing stock; the drying box (2) is arranged on the feeding table (1), and openings are formed in two ends of the drying box (2) along the feeding direction;

the drying component (4) comprises a heating tube (41) and a ventilation piece (47), the heating tube (41) is horizontal and distributed on the upper side and the lower side of the material presenting rack (3), and a mounting groove (21) for the heating tube (41) to be inserted horizontally is formed in the drying box (2);

the ventilation piece (47) is arranged on one side, away from the printing stock, of the heating pipe (41), and hot air can be introduced into the drying box (2).

2. The flexographic printing line drying device of claim 1, wherein: two ends of the heating tube (41) are connected with a sliding rod (42) in a sliding mode along the axial direction, one end, far away from the heating tube (41), of the sliding rod (42) is provided with a limiting ring (43), and the limiting ring (43) is tightly abutted to the inner wall of the mounting groove (21); the sliding rod (42) is provided with a pressing spring (44), and the pressing spring (44) can enable the sliding rod (42) to move towards one end far away from the heating tube (41).

3. The flexographic printing line drying device of claim 2, wherein: one side of any one of the limiting rings (43) close to the mounting groove (21) is provided with a conducting strip (45), a conducting strip (46) is arranged corresponding to the inner wall of the mounting groove (21), and the conducting strip (46) is used for being electrically connected with a power supply.

4. The flexographic printing line drying device of claim 1, wherein: the ventilation piece (47) comprises a blower (471), a heating box (472), an air inlet pipe (473), a circulating pipe (474) and a treatment box (475), wherein one end of the air inlet pipe (473) is communicated with the drying box (2), and the other end of the air inlet pipe (473) is communicated with the blower (471); one end of the circulating pipe (474) is communicated with the drying box (2), and the other end is communicated with the processing box (475).

5. The flexographic printing line drying device of claim 4, wherein: the drying box is characterized by further comprising a shielding curtain (6), wherein the shielding curtain (6) is arranged at openings at two ends of the drying box (2).

6. The flexographic printing line drying device of claim 5, wherein: the drying box (2) is rotatably connected with rotating shafts (61) at positions close to the two ends, and the shielding curtain (6) is wound on the rotating shafts (61); one end of the rotating shaft (61) is coaxially and slidably connected with a prismatic rotary head (62), and a sinking groove (63) embedded with the rotary head (62) is formed in the side wall of the drying box (2).

7. The flexographic printing line drying device of claim 6, wherein: one end of the drying box (2) close to the discharging end is rotatably connected with a pair of cooling rollers (5), and the cooling rollers (5) are hollow and used for introducing cooling water.

8. The flexographic printing line drying device of claim 7, wherein: the inner wall of the drying box (2) is provided with a separation curtain (7) which has the same structure as the shielding curtain (6), and the separation curtain (7) is arranged between the drying component (4) and the cooling roller (5).