CN209777772U - Paper feeding mechanism of digital printing equipment - Google Patents

Abstract

The utility model relates to a lithography apparatus technical field specifically is a digit lithography apparatus paper feeding mechanism, including fixed plate and pivot, the both ends of pivot are fixed on the fixed plate, and the outside of pivot is equipped with the paper feed roller, is equipped with a plurality of adjustment mechanism on the fixed plate, and adjustment mechanism includes Z type mount pad, T type slide rail, sliding seat, spiral pipe and hob, and Z type mount pad is fixed on the fixed plate, T type slide rail and mount pad fixed connection, and the sliding seat cup joints on T type slide rail, the bottom at Z type mount pad is welded to the hob, and one side of sliding seat is equipped with presses the paper axle, presses the both ends of paper axle to fix on the sliding seat, presses the outside of paper axle to be equipped with a plurality of nipper structures. The utility model discloses novel structure through installing a plurality of adjustment mechanism, can freely change the interval of pressing the paper axle and the roller of form advancing to change pressure paper size, simple structure, the debugging is convenient.

Description

paper feeding mechanism of digital printing equipment

Technical Field

The utility model relates to a lithography apparatus technical field specifically is a digital printing apparatus paper feeding mechanism.

Background

The existing paper feeding mechanism for the digital printing device generally comprises a conveyor belt type paper feeding mechanism and a variable speed paper feeding mechanism. The most common is a belt-type paper feeding mechanism, which is composed of a paper feeding pressing wheel mechanism, a paper feeding table device, a belt-type transmission mechanism and the like. The paper transfer suction nozzle delivers paper to a paper feeding roller (also called a paper receiving roller, here also a line belt roller), the paper is conveyed forwards by the friction force under a paper pressing wheel and a paper pressing roller, and the paper separated from the paper separating head is conveyed and flattened on a paper conveying plate, so that the paper enters a gauge part stably for positioning, and conditions are created for accurate overprinting.

However, during the paper transportation process, the paper pressing wheel is used for ensuring that the paper is delivered forwards smoothly and in the correct paper feeding direction. If the paper pressing wheel is not used properly, the paper can be skewed, disordered and even stopped. Therefore, the adjustment of the platen mechanism is indispensable.

However, the prior art has the following defects: the platen roller in the prior art is large, long and heavy, is not beneficial to debugging, and easily causes uneven pressure on two sides, thereby influencing the printing quality.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a digit lithography apparatus paper feeding mechanism to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a paper feeding mechanism of digital printing equipment comprises a fixed plate and a rotating shaft, wherein one end of the fixed plate is provided with a driving device, the middle part of the fixed plate is provided with a plurality of mounting holes, bearings are arranged in the mounting holes, the two ends of the rotating shaft are fixed on the fixed plate through the bearings, the outer side of the rotating shaft is provided with a paper feeding roller, one end of the rotating shaft is connected with the driving device, the fixed plate is provided with a plurality of adjusting mechanisms, each adjusting mechanism comprises a Z-shaped mounting seat, a T-shaped sliding rail, a movable seat, a spiral pipe and a spiral rod, the Z-shaped mounting seat is fixed on the fixed plate through bolts, the T-shaped sliding rail is fixedly connected with the mounting seat, the movable seat is sleeved on the T-shaped sliding rail, the spiral pipe is welded at the bottom end of the Z-shaped mounting seat, the spiral rod penetrates through the movable seat and is spirally connected with the, the outer side of the paper pressing shaft is provided with a plurality of paper pressing mechanisms.

Preferably, one end of the movable seat close to the T-shaped slide rail is provided with a slide groove matched with the T-shaped slide rail in a penetrating manner, the movable seat is internally hollow and provided with a movable cavity, a clamping block is arranged in the movable cavity, and the clamping block is fixedly connected with the screw rod.

Preferably, a spring is arranged in the spiral tube, one end of the spiral rod is fixedly connected with a knob, and the other end of the spiral rod is fixedly connected with the spring.

Preferably, the paper pressing mechanism comprises a roller seat and a roller, the roller seat is fixedly connected with the paper pressing shaft, and the roller is sleeved on the outer side of the roller seat.

Preferably, the driving device comprises a motor, and an output end of the motor is connected with the rotating shaft through a coupling.

Compared with the prior art, the beneficial effects of the utility model are that:

1. through setting up the fixture block, can play a supporting role to the sliding seat, prevent that the sliding seat landing on the hob, and through installation T type slide rail, can play a spacing effect to the sliding seat, avoided the sliding seat to rotate along with the rotation of hob. Thereby achieving certain stability;

2. Through replacing traditional long compression roller with a plurality of short gyro wheels for whole nipper constructs and becomes more slim and graceful, thereby makes pressure debug more easily, the atress is even, makes to press paper more accurate, thereby has improved the efficiency of form advancing. The spiral rod is matched with the spiral pipe, so that the height of the paper pressing shaft can be freely adjusted, the pressure adjusting precision is high, the advantages of reversibility and high debugging efficiency are achieved, and the spiral rod is convenient to rotate due to the design of the knob;

3. the utility model discloses novel structure through installing a plurality of adjustment mechanism, can freely change the interval of pressing the paper axle and the roller of form advancing to change pressure paper size, simple structure, the debugging is convenient.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional view of the adjusting mechanism of the present invention;

FIG. 3 is a perspective view of the Z-shaped mounting seat and the T-shaped slide rail of the present invention;

fig. 4 is an exploded view of the middle movable seat of the present invention.

In the figure: the device comprises a fixing plate 1, a paper feeding roller 2, a paper pressing shaft 3, a roller seat 4, an adjusting mechanism 5, a Z-shaped mounting seat 51, a T-shaped sliding rail 52, a movable seat 53, a movable cavity 531, a sliding groove 532, a spiral pipe 54, a spiral rod 55, a fixture block 56, a spring 57, a knob 58, a roller 6 and a rotating shaft 7.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 4, the present invention provides a technical solution: the utility model provides a digit lithography apparatus paper feeding mechanism, includes fixed plate 1 and pivot 7, and the one end of fixed plate 1 is equipped with drive arrangement, and a plurality of mounting holes are seted up at the middle part of fixed plate 1, are equipped with the bearing in the mounting hole, and the bearing is passed through at the both ends of pivot 7 and is fixed on fixed plate 1, and the outside of pivot 7 is equipped with paper feed roller 2, and the one end and the drive arrangement of pivot 7 are connected.

As shown in fig. 1, 2 and 3, a plurality of adjusting mechanisms 5 are disposed on the fixing plate 1, each adjusting mechanism 5 includes a Z-shaped mounting seat 51, a T-shaped slide rail 52, a movable seat 53, a spiral tube 54 and a spiral rod 55, the Z-shaped mounting seat 51 is fixed on the fixing plate 1 through bolts, the T-shaped slide rail 52 is fixedly connected with the mounting seat 51, the movable seat 53 is sleeved on the T-shaped slide rail 52, the bottom end of the T-shaped slide rail 52 is solid, the spiral tube 54 is welded at the bottom end of the Z-shaped mounting seat 51, the spiral rod 55 penetrates through the movable seat 53 and is spirally connected with the spiral tube 54, a paper pressing shaft 3 is disposed on one side of the movable seat 53, both ends of the paper pressing shaft 3 are fixed on the movable seat 53 through bearings, and the position of the movable seat 53 is adjusted through the adjusting spiral rod 55, so as to change the distance between the paper pressing shaft. A plurality of paper pressing mechanisms are arranged on the outer side of the paper pressing shaft 3. Through replacing traditional long compression roller with a plurality of short gyro wheels 6 for whole nipper constructs and becomes more slim and graceful, thereby makes pressure debug more easily, the atress is even, makes to press paper more accurate, thereby has improved the efficiency of form advancing.

As shown in fig. 1 and 4, one end of the movable seat 53 close to the T-shaped slide rail 52 is provided with a sliding groove 532 matching with the T-shaped slide rail 52 in a penetrating manner, the inside of the movable seat 53 is hollow and provided with a movable cavity 531, a fixture block 56 is arranged in the movable cavity 531, and the fixture block 56 is fixedly connected with the screw rod 55. The movable seat 53 is formed by splicing two small movable seats with the same texture through screws. Through setting up fixture block 56, can play a supporting role to sliding seat 53, prevent that sliding seat 53 landing on hob 55, and through installation T type slide rail 52, can play a spacing effect to sliding seat 53, avoided sliding seat 53 to rotate along with hob 55's rotation. Thereby achieving a certain stability.

As shown in fig. 2, a spring 57 is disposed inside the spiral tube 54, the spring 57 can enhance the tightening force, one end of the spiral rod 55 is fixedly connected with a knob 58, and the other end of the spiral rod 55 is fixedly connected with the spring 57. Through the cooperation of hob 55 use spiral pipe 54, the regulation paper pressing axle's that not only can be free height size, the pressure regulating precision is higher moreover, has reversibility and the efficient benefit of debugging, and the design of knob 58 is convenient for rotate hob 55.

As shown in fig. 1, the paper pressing mechanism includes a roller base 4 and a roller 6, the roller base 4 is fixedly connected with the paper pressing shaft 3, and the roller 6 is sleeved outside the roller base 4. The paper pressing mechanism can be provided with three groups, and the total length of the rollers 6 in the three groups of paper pressing mechanisms is matched with the paper pressing roller 2.

As shown in fig. 1, the driving device includes a motor, and an output end of the motor is connected to the rotating shaft 7 through a coupling. The motor is generally a Y90S-2 motor, which is the prior art.

the working principle is as follows: when the position and pressure of the paper pressing mechanism of the product need to be adjusted, the knob 58 is rotated, so that the screw rod 55 is rotated to drive the movable seat 53 to move up and down on the T-shaped slide rail 52, the distance between the paper pressing shaft 3 and the rotating shaft 7 is adjusted, and the paper pressing pressure is changed.

After preliminary debugging, a driving device is started, the paper feeding condition of paper on a paper conveying board platform is observed, if trace skew exists, the pressure of a paper pressing shaft 3 at the side where the paper feeding is slower is slightly increased until a completely stable state is reached, and compared with a long paper pressing roller, paper pressing of the paper feeding roller 2 is carried out by adopting a plurality of rollers 6, the pressure is easier to debug, the stress is uniform, the paper pressing is more accurate, and the paper feeding efficiency is improved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. the utility model provides a digit lithography apparatus paper feeding mechanism, includes fixed plate (1) and pivot (7), the one end of fixed plate (1) is equipped with drive arrangement, and a plurality of mounting holes are seted up at the middle part of fixed plate (1), are equipped with the bearing in the mounting hole, the both ends of pivot (7) are passed through the bearing and are fixed on fixed plate (1), and the outside of pivot (7) is equipped with paper feed roller (2), the one end and the drive arrangement of pivot (7) are connected, its characterized in that: be equipped with a plurality of adjustment mechanism (5) on fixed plate (1), adjustment mechanism (5) include Z type mount pad (51), T type slide rail (52), sliding seat (53), spiral pipe (54) and hob (55), Z type mount pad (51) are fixed on fixed plate (1) through the bolt, T type slide rail (52) and mount pad (51) fixed connection, sliding seat (53) cup joint on T type slide rail (52), the bottom at Z type mount pad (51) is welded in hob (55), hob (55) run through sliding seat (53) and with spiral pipe (54) screwed connection, one side of sliding seat (53) is equipped with presses paper axle (3), press the both ends of paper axle (3) to pass through the bearing and fix on sliding seat (53), press the outside of paper axle (3) to be equipped with a plurality of paper pressing mechanism.

2. A paper feeding mechanism for a digital printing apparatus according to claim 1, wherein: one end, close to the T-shaped sliding rail (52), of the movable seat (53) penetrates through a sliding groove (532) matched with the T-shaped sliding rail (52), a movable cavity (531) is formed in the hollow interior of the movable seat (53), a clamping block (56) is arranged in the movable cavity (531), and the clamping block (56) is fixedly connected with the spiral rod (55).

3. A paper feeding mechanism for a digital printing apparatus according to claim 1, wherein: a spring (57) is arranged inside the spiral tube (54), one end of the spiral rod (55) is fixedly connected with a knob (58), and the other end of the spiral rod (55) is fixedly connected with the spring (57).

4. A paper feeding mechanism for a digital printing apparatus according to claim 1, wherein: the paper pressing mechanism comprises a roller seat (4) and a roller (6), the roller seat (4) is fixedly connected with the paper pressing shaft (3), and the roller (6) is sleeved on the outer side of the roller seat (4).

5. A paper feeding mechanism for a digital printing apparatus according to claim 1, wherein: the driving device comprises a motor, and the output end of the motor is connected with the rotating shaft (7) through a coupling.