CN219236575U

CN219236575U - Elastic compression roller device

Info

Publication number: CN219236575U
Application number: CN202223364607.7U
Authority: CN
Inventors: 张法妞; 许清豪; 屈海鹏
Original assignee: Henan Yindu Digital Technology Co ltd
Current assignee: Henan Yindu Digital Technology Co ltd
Priority date: 2022-12-15
Filing date: 2022-12-15
Publication date: 2023-06-23
Anticipated expiration: 2032-12-15

Abstract

The utility model provides an elasticity compression roller device, the equal rotation in compression roller both ends of this compression roller device is connected with the swing arm, the middle part of swing arm rotates with the side support board of printer support and is connected, consequently, the compression roller can rotate between two swing arms, and can realize the adjustment of upper and lower position along with the swing of swing arm, the outer end rotation of swing arm is connected with the cylinder, the piston rod outer end of cylinder is articulated with the lower extreme of swing arm, consequently can drive two swing arms synchronous swing through the cylinder, the adjustment of position about the automatic realization compression roller, and then the automatic adjustment compression roller is to the pressure of print medium, realize the automatic adjustment of print medium tension, the problem of fold appears when avoiding print medium to get into print platform, the printing effect of banner has been guaranteed.

Description

Elastic compression roller device

Technical Field

The utility model relates to the field of banner printers, in particular to an elastic compression roller device in a banner printer.

Background

Banner printers are widely used in the advertising field. The printing trolley is used for printing the printing medium, and the printing medium is a soft material, so that the scroll passing roller is arranged at the entrance of the printing platform, the pressure is applied to the printing medium through the scroll passing roller, the tension of the printing medium is improved, the scroll is prevented from being wrinkled when entering the printing platform, and the printing effect is prevented from being influenced by the wrinkled. The utility model patent with publication number of CN114161842A provides a printing, cylinder making, sewing and winding scroll all-in-one machine, wherein a scroll passing roller is installed in the all-in-one machine, but is rotationally connected between side support plates of a printing support through a bearing, and the scroll passing roller can only rotate between the support plates at two sides and cannot adjust the position up and down, so that the position of the scroll passing roller cannot be adjusted according to the tension change of a printing medium, and the tension of the printing medium cannot be adjusted quickly through the scroll passing roller, so that improvement is required.

Disclosure of Invention

In order to solve the problems, the utility model provides an elastic compression roller device.

The technical scheme of the utility model is as follows: the utility model provides an elasticity compression roller device, the device is installed between the both sides backup pad upper portion of printer support, the device includes swing arm and the cylinder that the compression roller both ends are connected, the well lower part of swing arm is equipped with the through-hole, the swing arm is established to square platy, also can establish the swing arm into the swinging arms, this through-hole swivelling joint has the swing arm pivot, the outer end and the side backup pad vertical fixation of swing arm pivot are connected, the upper end of swing arm is equipped with the through-hole, the roller of compression roller inserts and forms the revolute pair in this through-hole, the perpendicular rotation is connected with the cylinder pivot on the base of cylinder outer end, the outer end and the side backup pad vertical fixation of cylinder pivot for the swing of support cylinder, the piston rod outer end of cylinder is articulated with the lower extreme of swing arm.

Preferably, a bearing is fixedly installed in the through hole at the middle lower part of the swing arm, the swing arm rotating shaft is sleeved in the bearing, the bearing is arranged in the through hole at the upper end of the swing arm, the roller shaft of the compression roller is sleeved in the bearing, and the bearing can be also arranged to be a rotating shaft sleeve.

Preferably, a positioning shaft is arranged in the middle of the outer end face of the swing arm rotating shaft, a positioning shaft is arranged in the middle of the outer end face of the air cylinder rotating shaft, and the swing arm rotating shaft and the air cylinder rotating shaft are fixedly connected with the side supporting plate through the positioning shaft.

Preferably, the lower extreme side fixedly connected with cross axle of swing arm, the piston rod tip of cylinder is equipped with the U-shaped fork, and the cross axle suit realizes articulating in the U-shaped fork, and this articulated convenient to detach and stability are placed to this.

Preferably, two planes are symmetrically arranged on the circumferential surface of the swing arm rotating shaft, and a clamping structure is formed on the swing arm rotating shaft by the two planes, and is convenient to screw and detach.

Preferably, two planes are symmetrically arranged on the circumferential surface of the cylinder rotating shaft, and the two planes form a clamping structure on the cylinder rotating shaft.

The beneficial technical effects of the utility model are as follows:

(1) The swing arms are connected to the two ends of the pressing roller device in a rotating mode, the middle of the swing arms are connected with the side supporting plates of the printer support in a rotating mode, therefore the pressing roller can rotate between the two swing arms, the outer ends of the swing arms can be connected with the air cylinders in a rotating mode along with the swing of the swing arms, the outer ends of piston rods of the air cylinders are hinged to the lower ends of the swing arms, the two swing arms can be driven to swing synchronously through the air cylinders, the adjustment of the upper and lower positions of the pressing rollers is achieved automatically, the pressure of the pressing rollers on printing media is adjusted automatically, the automatic adjustment of the tension of the printing media is achieved, the problem that wrinkles occur when the printing media enter the printing platform is avoided, and the printing effect of a banner is guaranteed.

(2) Two planes are symmetrically arranged on the circumferential surfaces of the swing arm rotating shaft and the air cylinder rotating shaft in the compression roller device, and the two planes form a clamping structure on the swing arm rotating shaft, so that tools such as a spanner can be directly clamped between the two planes for screwing, and the compression roller device is convenient to detach and assemble and beneficial to later maintenance.

Drawings

FIG. 1 is a schematic top view of the present utility model;

FIG. 2 is an enlarged view of a portion of FIG. 1;

FIG. 3 is a cross-sectional view taken along A-A of FIG. 1;

fig. 4 is a schematic perspective view of the present utility model.

In the figure, 30, compression roller, 301, roll shaft, 31, side support plate, 32, swing arm, 321, swing arm rotating shaft, 322, transverse shaft, 33, air cylinder, 331, air cylinder rotating shaft, 332, piston rod, 333, U-shaped fork, 34, through hole, 35, bearing, 36, positioning shaft, 37, plane, 38.

Detailed Description

In the first embodiment, referring to fig. 1-4 of the specification, an elastic press roller device is installed between the upper parts of two side support plates 31 of a printer support, the device comprises a swing arm 32 and a cylinder 33, the two ends of the press roller 30 are connected, a through hole 34 is arranged at the middle lower part of the swing arm 32, a swing arm rotating shaft 321 is connected in a rotating manner in the through hole 34, the outer end of the swing arm rotating shaft 321 is fixedly connected with the side support plate 31 vertically, a through hole 34 is arranged at the upper end of the swing arm 32, a roll shaft 301 of the press roller 30 is inserted into the through hole 34 to form a revolute pair, therefore, the press roller 30 can rotate between the two swing arms 32, and can realize up-down adjustment along with the swing of the swing arm 32, a cylinder rotating shaft 331 is connected to a base at the outer end of the cylinder 33 in a vertical rotation manner, the outer end of the cylinder rotating shaft 331 is fixedly connected with the side support plate 31 vertically, and the outer end of a piston rod 332 of the cylinder 33 is hinged with the lower end of the swing arm 32, so that the two swing arms 32 can be driven to swing synchronously by the cylinder 33.

A bearing 35 is fixedly arranged in a through hole 34 at the middle lower part of the swing arm 32, a swing arm rotating shaft 321 is sleeved in the bearing 35, a bearing 35 is arranged in the through hole 34 at the upper end of the swing arm 32, a roll shaft 301 of the press roll 30 is sleeved in the bearing 35, the flexibility of rotation of the press roll 30 between the two swing arms 32 is improved through the bearing 35, and the flexibility of rotation of the swing arm 32 on the side support plate 31 is improved.

The middle of the outer end surface of the swing arm rotating shaft 321 is provided with a positioning shaft 36, the middle of the outer end surface of the cylinder rotating shaft 331 is provided with a positioning shaft 36, the swing arm rotating shaft 321 and the cylinder rotating shaft 331 are fixedly connected with each other through the positioning shaft 36 and the side support plate 31, the positioning shaft 36 is inserted into a through hole 34 formed in the side support plate 31, and then a positioning bolt is inserted into a threaded hole of a positioning pin to fix the positioning shaft 36 on the side support plate 31.

The lower extreme side fixedly connected with cross axle 322 of swing arm 32, the piston rod 332 tip of cylinder 33 is equipped with U-shaped fork 333, and cross axle 322 suit realizes articulated in U-shaped fork 333, and U-shaped fork 333 and cross axle 322 carry out articulated stability good to convenient to detach and installation.

Two planes 37 are symmetrically arranged on the circumferential surface of the swing arm rotating shaft 321, and the two planes 37 form a clamping structure on the swing arm rotating shaft 321; two planes 37 are symmetrically arranged on the circumferential surface of the cylinder rotating shaft 331, and the two planes 37 form a clamping structure on the cylinder rotating shaft 331, so that tools such as a wrench can be directly clamped between the two planes 37 for screwing.

The working process of the utility model is as follows: in the process that the printing medium 38 continuously enters the printing platform through the pressing roller 30, if the phenomenon that the tension is weakened to cause the wrinkling of the printing medium occurs, the piston rods 332 of the two cylinders 33 are driven to extend outwards, the piston rods 332 push the lower ends of the swing arms 32 through the U-shaped forks 333, the swing arms 32 rotate on the side supporting plates 31 through the swing arm rotating shafts 321, the pressing roller 30 between the upper ends of the two swing arms 32 moves downwards to press the printing medium, the pressure of the pressing roller 30 on the printing medium is automatically adjusted, the tension of the printing medium is enhanced, the problem that the wrinkling occurs when the printing medium enters the printing platform is avoided, and the printing effect of a scroll is ensured.

Claims

1. An elastic compression roller device is arranged between the upper parts of two side supporting plates of a printer bracket and is characterized in that:

the device includes swing arm and the cylinder that the compression roller both ends are connected, and the well lower part of swing arm is equipped with the through-hole, and this through-hole internal rotation is connected with the swing arm pivot, and the outer end and the side support board vertical fixation of swing arm pivot are equipped with the through-hole, and the upper end of swing arm, the roller of compression roller insert form the revolute pair in this through-hole, rotate perpendicularly on the base of cylinder outer end and be connected with the cylinder pivot, the outer end and the side support board vertical fixation of cylinder pivot are connected, and the piston rod outer end and the lower extreme of swing arm of cylinder are articulated.

2. An elastic pressing roller apparatus according to claim 1, characterized in that: the bearing is fixedly installed in the through hole at the middle lower part of the swing arm, the swing arm rotating shaft is sleeved in the bearing, the bearing is arranged in the through hole at the upper end of the swing arm, and the roller shaft of the compression roller is sleeved in the bearing.

3. An elastic pressing roller apparatus according to claim 1, characterized in that: the swing arm rotating shaft is fixedly connected with the side support plate through the positioning shaft.

4. An elastic pressing roller apparatus according to claim 1, characterized in that: the side surface of the lower end of the swing arm is fixedly connected with a transverse shaft, the end part of a piston rod of the air cylinder is provided with a U-shaped fork, and the transverse shaft is sleeved in the U-shaped fork to realize hinging.

5. An elastic pressing roller apparatus according to claim 1, characterized in that: two planes are symmetrically arranged on the circumferential surface of the swing arm rotating shaft, and the two planes form a clamping structure on the swing arm rotating shaft.

6. An elastic pressing roller apparatus according to claim 1, characterized in that: two planes are symmetrically arranged on the circumferential surface of the cylinder rotating shaft, and the two planes form a clamping structure on the cylinder rotating shaft.