CN204296187U - A kind of wide cut high speed woodgrained paper printing machine - Google Patents

Abstract

The utility model relates to a kind of wide cut high speed woodgrained paper printing machine, include the unwinding unit successively arranged according to flow process, unreel haulage gear, multiple printing element, rolling haulage gear and rolling unit, described printing element includes printing main body, drying structure is provided with at the subsequent work stations of printing main body, described drying structure includes the bracing frame of the warhead form that two curved surfaces are formed, the outer surface of support frame as described above is provided with the location deflector roll of multiple fixing paper tape, is provided with the bellows matched with bracing frame 33 outer surface arc in the outer surface foreign side of support frame as described above.The utility model, unwinding and rewinding adopt blowing and the rolling-up mechanism of hydraulic top compact form support paper roll, variable fabric width, fabric width scope: 1210-2150mm, compared with traditional air-expanding shaft chuck structure, not only alleviate labour intensity when reloading, also shorten the time of reloading, be convenient to high-speed production.

Description

A wide-format high-speed wood grain paper printing machine

【Technical field】

The utility model relates to a printing machine, in particular to a wide-width high-speed wood grain paper printing machine.

【Background technique】

The existing wood-grain paper printing machine adopts the rewinding and unwinding structure of the air shaft and the chuck, which is time-consuming and laborious when changing the roll; the cylinder supports the swing arm structure of the cutter; If the product requirements are not met, the rubber roller and steel roller are pressed against each other, the single roller floating pendulum roller, the single side drying bellows, the product cannot be fully dried, and other structures, the wood grain paper printing machine can basically reach the production speed of 200m/min. But it has been unable to continue to improve. There are several reasons that restrict its speed-up, such as long time for rewinding and unwinding, unreliable feeding, occasional failures, large fluctuations in tension during feeding, poor registration accuracy, and insufficient drying of products. The utility model adopts a hydraulic top-tight retracting and unwinding structure, the oil cylinder supports the swing arm of the cutter, the double-S layout sandblasting steel rollers, the double-roller swing floating rollers, the gap air nozzle, the arc bellows, the air nozzle, and the guide roller one by one. Corresponding layout, horizontal push cutter, contact winding. This series of optimized and innovative designs realize simple and fast roll change, stable and reliable splicing, small tension fluctuations, high-precision color registration, high-speed full drying, and a production speed of 400m/min when printing wood grain paper.

The utility model is made under such background.

【Content of utility model】

The purpose of the utility model is to overcome the deficiencies in the prior art and provide a wide-width and high-speed wood grain paper printing machine.

The utility model adopts the following technical solutions:

A wide-width high-speed wood grain paper printing machine, characterized in that it includes an unwinding unit 1, an unwinding traction mechanism 2, a plurality of printing units 3, a winding traction mechanism 4 and a winding unit 5 arranged successively according to the flow process, The printing unit 3 includes a printing main body 31, and a drying structure 32 is provided at the subsequent station of the printing main body 31. The drying structure 32 includes a bullet-shaped support frame 33 formed by two arc-shaped surfaces. The support frame 33 The outer surface of the outer surface is provided with a plurality of positioning guide rollers 34 for fixing the paper tape 6, and the outer surface of the support frame 33 is provided with a bellows 35 matching the arc shape of the outer surface of the support frame 33.

A wide-width high-speed wood grain paper printing machine as described above is characterized in that two bellows 35 are arranged outside the support frame 33, arranged on both sides of the support frame 33, and the air nozzles 351 of the bellows 35 are To the position of positioning guide roller 34.

A wide-width high-speed wood grain paper printing machine as described above is characterized in that: the unwinding unit 1 includes a clamping frame 11, a first hydraulic cylinder 12 arranged at both ends of the clamping frame 11, and a A clamping block 13 on the upper end of a hydraulic cylinder 12 is clamped with the expansion and contraction of the first hydraulic cylinder 12 .

A wide-width high-speed wood grain paper printing machine as described above is characterized in that: the front end of the unwinding traction mechanism 2 is provided with a cutter swing arm mechanism 7, and the cutter swing arm mechanism 7 includes a The swing arm 71 of cutter, and the second hydraulic cylinder 72 that drives swing arm to swing.

A wide-width high-speed wood grain paper printing machine as described above is characterized in that: the unwinding traction mechanism 2 includes a traction motor, and is driven by the traction motor to make the paper tape 6 wound on it form an "S" Shaped two traction guide rollers 21.

A wide-width high-speed wood grain paper printing machine as described above is characterized in that: the unwinding traction mechanism 2 is provided with a double pendulum roller mechanism composed of two floating rollers 22 to increase the buffer length of the paper tape 6 .

A wide-width high-speed wood grain paper printing machine as described above is characterized in that: the front side of the winding unit 5 is provided with a winding pressure roller 9 that can compress the paper roll 8, and the lower side of the winding pressure roller 9 There is a slide rail structure 91 that can move the winding pressure roller 9 to the right and press the paper roll 8 tightly.

A wide-width high-speed wood grain paper printing machine as described above is characterized in that: the rewinding unit 5 includes a rewinding clamping frame 51, a third hydraulic cylinder 52 arranged at both ends of the rewinding clamping frame 51, And the rewinding and clamping block 53 that is installed on the upper end of the third hydraulic cylinder 52 and clamped with the expansion and contraction of the third hydraulic cylinder 52 .

The beneficial effects of the utility model are:

The utility model adopts hydraulic top-tight supporting paper rolls, variable width unwinding and rewinding mechanism for rewinding and unwinding, and the width range: 1210-2150mm. Compared with the traditional air shaft chuck structure, it not only reduces refueling The labor intensity is reduced, and the refueling time is shortened, which is convenient for high-speed production;

The swing arm of the unwinding cutter adopts hydraulic support to swing. Compared with the traditional cylinder support, it can effectively prevent the swing arm from shaking, improve the reliability and stability of material feeding, and solve the problem of emergency shutdown in case of failure of high-speed refueling, resulting in a large number of waste products;

The unwinding traction adopts the structure of steel roller sandblasting and double S layout, which can realize the function of pressing roller without pressing roller: cut off the tension;

The floating roller for material receiving adopts a double-roller structure. When the buffer length required by the design is met, the rotation angle is small, which is convenient for synchronous control, ensures stable tension, reduces waste due to large fluctuations in tension, and improves yield;

The bellows adopts slit nozzles, arc-shaped structure, 7000mm drying length on both sides, multiple return air passages, cyclone layout, drying method from the inside to the outside, and the production speed can reach 400m/min;

Each air nozzle in the bellows corresponds to a guide roller to prevent the paper from shaking in the bellows and affect the registration accuracy;

The rewinding material adopts a flat push structure, the rewinding pressure roller presses the paper roll, and the contact rewinding, after the rewinding roller is replaced, the rewinding with variable width can be realized.

【Description of drawings】

Fig. 1 is the technological process schematic diagram of A to B part of the utility model.

Fig. 2 is a schematic diagram of the process flow from parts C to D in Fig. 1 .

Fig. 3 is a side view of the unwinding unit.

Fig. 4 is a side view of the winding unit.

【Detailed ways】

The utility model is described in detail below in conjunction with accompanying drawing:

As shown in the figure, a wide-width high-speed wood grain paper printing machine includes an unwinding unit 1, an unwinding traction mechanism 2, and multiple printing units 3 arranged successively according to the process. The utility model has 4 printing units. The winding traction mechanism 4 and the winding unit 5, the printing unit 3 includes a printing main body 31, a drying structure 32 is arranged at the subsequent station of the printing main body 31, and the drying structure 32 is arranged above the printing main body 31, and the drying The structure 32 includes a bullet-shaped support frame 33 formed by two arcuate surfaces. The outer surface of the support frame 33 is provided with a plurality of positioning guide rollers 34 for fixing the paper tape 6. Outside the outer surface of the support frame 33 A bellows 35 matching the arc shape of the outer surface of the support frame 33 is provided, and the air nozzle 351 of the bellows 35 faces the paper tape 6 . A heat source is provided in the bellows 35 to help drying, and the bellows heat source only needs to meet the wind speed and air volume required by the design.

The support frame 33 is provided with two bellows 35 arranged on both sides of the support frame 33 , and the air nozzles 351 of the bellows 35 are facing the positions of the positioning guide rollers 34 . Each positioning guide roller 34 is provided with an air nozzle 351 to prevent the paper from vibrating in the bellows and meet the requirements of high-speed and high-precision automatic color registration. The bellows adopts an arc-shaped structure with double-sided drying and 7000mm-long slit-type hot air circulation and rapid exhaust; the multi-position return air path has a cyclone layout on the entire width, which can ensure that the machine speed is 400m/min. Fully dry from the inside to the outside. High speed production.

The unwinding unit 1 includes a clamping frame 11, a first hydraulic cylinder 12 arranged at both ends of the clamping frame 11, and a clamping device installed on the upper end of the first hydraulic cylinder 12 to clamp as the first hydraulic cylinder 12 expands and contracts. Block 13. The clamping width can be adjusted according to the size of the paper roll to meet the printing requirements of wider paper tapes.

The front end of the unwinding traction mechanism 2 is provided with a cutter swing arm mechanism 7, and the cutter swing arm mechanism 7 includes a swing arm 71 with a cutter at the upper end, and a second hydraulic cylinder 72 that drives the swing arm to swing. The unwinding cutter adopts hydraulic support to swing, which effectively prevents the shaking of the swing arm during the material change process, ensures the reliability of the material connection, and solves the problem of a large amount of waste products once the high-speed material change fails. When the second hydraulic cylinder 72 was extended, the swing arm 71 rocked upwards, and the blade above clamped the paper tape 6 to cut the paper tape.

The unwinding traction mechanism 2 includes a traction motor, and two traction guide rollers 21 driven by the traction motor to make the paper tape 6 wound on it form an "S" shape. The unwinding traction adopts the double S-roller structure with sandblasting on the roller surface, which can realize the separation of the tension without the pressure roller, and reduces the cost; the floating roller adopts the double-swing roller structure. Small size, more precise synchronous control, reducing the length of scrap during refueling, and improving the yield.

The unwinding traction mechanism 2 is provided with a double pendulum roller mechanism composed of two floating rollers 22 to increase the buffer length of the paper tape 6 .

The front side of the rewinding unit 5 is provided with a rewinding roller 9 that can compress the paper roll 8 , and the lower side of the rewinding roller 9 is provided with a slide rail that can move the rewinding roller 9 to the right to compress the paper reel 8 structure91. When the width of the paper tape 6 changes, only one pressure roller needs to be replaced to realize variable-width winding, which is convenient and reliable.

The structure of the unwinding unit and the rewinding unit is the same, and the paper roll is fixed by means of hydraulic clamping and mechanical expansion type chuck paper core. The third hydraulic cylinder 52 at the end, and the rewinding and clamping block 13 installed on the upper end of the third hydraulic cylinder 52 that is clamped as the third hydraulic cylinder 52 expands and contracts. The clamping width can be adjusted according to the size of the paper roll to meet the printing requirements of wider paper tapes. Realize variable width unwinding and rewinding, and the width range of the material roll can reach the range of 1210-2150mm.

Claims (8)

1. a wide cut high speed woodgrained paper printing machine, it is characterized in that: include the unwinding unit (1) successively arranged according to flow process, unreel haulage gear (2), multiple printing element (3), rolling haulage gear (4) and rolling unit (5), described printing element (3) includes printing main body (31), drying structure (32) is provided with at the subsequent work stations of printing main body (31), described drying structure (32) includes the bracing frame (33) of the warhead form that two curved surfaces are formed, the outer surface of support frame as described above (33) is provided with the location deflector roll (34) of multiple fixing paper tape (6), the bellows (35) matched with bracing frame (33) outer surface arc are provided with in the outer surface foreign side of support frame as described above (33).

2. according to a kind of wide cut high speed woodgrained paper printing machine according to claim 1, it is characterized in that: outside support frame as described above (33), be provided with two bellows (35), be arranged in bracing frame (33) both sides, the tuyere (351) of described bellows (35) is just to the position of location deflector roll (34).

3. according to a kind of wide cut high speed woodgrained paper printing machine according to claim 1, it is characterized in that: described unwinding unit (1) includes holding frame (11), be arranged on first hydraulic cylinder (12) at holding frame (11) two ends, and be arranged on stretching the grip block (13) clamped with the first hydraulic cylinder (12) of the first hydraulic cylinder (12) upper end.

4. according to a kind of wide cut high speed woodgrained paper printing machine according to claim 1, it is characterized in that: described in unreel haulage gear (2) front end be provided with cutting knife oscillating arm mechanisms (7), described cutting knife oscillating arm mechanisms (7) includes the swing arm (71) that upper end is provided with cutting knife, and the second hydraulic cylinder (72) driving swing arm to swing.

5. according to a kind of wide cut high speed woodgrained paper printing machine according to claim 1, it is characterized in that: described in unreel haulage gear (2) and include traction electric machine, and be pulled driven by motor and make to be formed around paper tape (6) thereon two tractions deflector roll (21) of serpentine shape.

6., according to a kind of wide cut high speed woodgrained paper printing machine according to claim 1, it is characterized in that: described in unreel haulage gear (2) and be provided with the double pendulum roller mechanism comprising increase paper tape (6) buffer length that two floating rollers (22) are formed.

7. according to a kind of wide cut high speed woodgrained paper printing machine according to claim 1, it is characterized in that: described rolling unit (5) front side be provided with the rolling pressure roller (9) that can compress paper roll (8), the downside of rolling pressure roller (9) be provided with can make rolling pressure roller (9) move to right compress paper roll (8) rail structure (91).

8. according to a kind of wide cut high speed woodgrained paper printing machine according to claim 1, it is characterized in that: described rolling unit (5) includes rolling holding frame (51), be arranged on the 3rd hydraulic cylinder (52) at rolling holding frame (51) two ends, and be arranged on stretching the rolling grip block (53) clamped with the 3rd hydraulic cylinder (52) of the 3rd hydraulic cylinder (52) upper end.