CN211870919U

CN211870919U - Automatic tension control system of printing mechanism

Info

Publication number: CN211870919U
Application number: CN202020319065.3U
Authority: CN
Inventors: 张海林; 黄雄
Original assignee: Huangshan Yunjia Decoration Materials Co ltd
Current assignee: Huangshan Yunjia Decoration Materials Co ltd
Priority date: 2020-03-16
Filing date: 2020-03-16
Publication date: 2020-11-06
Anticipated expiration: 2030-03-16

Abstract

The utility model belongs to the printing field, in particular to an automatic tension control system of a printing mechanism, aiming at the problem that the pressure of the prior tension control device to the newspaper is generally constant and the newspaper is easy to tear when the printing speed is required to be improved, the utility model provides a scheme which comprises a base, wherein the top of the base is fixedly provided with a mounting rack, a fixing seat and a printing machine in sequence, a scroll is movably clamped on the mounting rack, paper is wound on the scroll, a moving hole is arranged on the fixing seat, one end of the paper runs through the moving hole and extends to the printing machine, a rectangular frame is connected on the inner wall of the moving hole in a sliding way, the utility model can conveniently adjust the contact area of a braking belt and the paper by starting an electric push rod, thereby controlling the tension of the paper during the movement, and randomly adjusting the tension of the paper according to the working speed of the printing machine, the problem of paper breakage can be effectively prevented.

Description

Automatic tension control system of printing mechanism

Technical Field

The utility model relates to a printing technology field especially relates to an automatic tension control system of printing mechanism.

Background

The rotation of the raw paper roll in the newspaper printing machine is a discharging process and a process of passively rotating along with a printing cylinder of the newspaper printing machine;

in the printing process of a newspaper printing machine, the key factor for ensuring the printing quality is to maintain the proper and constant tension of a base paper roll, but the pressure of the conventional tension control device on the newspaper is generally constant and invariable, and the newspaper is easily torn when the printing speed needs to be improved, so an automatic tension control system of a printing mechanism is provided for solving the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the pressure of the prior art with the existing tension control device to the newspaper is generally invariable, and when the printing speed is required to be improved, the shortcoming of tearing the newspaper is easily caused, and the automatic tension control system of the printing mechanism is provided.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides an automatic tension control system of printing mechanism, includes the base, the top of base fixed mounting has mounting bracket, fixing base and printing machine in proper order, the spool is equipped with to activity card on the mounting bracket, around being equipped with the paper on the spool, and seted up on the fixing base and removed the hole, the one end of paper runs through and removes the hole and extend to on the printing machine, sliding connection has the rectangular frame on the inner wall in removal hole, the top fixed mounting of rectangular frame has U type pole, and the top of U type pole rotates and is connected with the screw rod, the top of screw rod runs through the top inner wall in removal hole and extends to the top of fixing base, screw rod and fixing base threaded connection.

Preferably, the rectangle frame is internally and symmetrically connected with two pinch rollers in a sliding manner, the tops and the bottoms of the pinch rollers respectively extend to the upper part and the lower part of the rectangle frame, an electric push rod is fixedly mounted on the inner wall of the rectangle frame, a tension wheel is fixedly mounted on an output shaft of the electric push rod, the output shaft of the electric push rod is respectively in transmission connection with the two pinch rollers, and the two pinch rollers can be conveniently driven to be close to or be away from each other by the electric push rod.

Preferably, the tensioning wheel and the two pressing wheels are in transmission connection with the same braking belt, a friction pad is fixedly mounted on the inner wall of the bottom of the moving hole, the friction pad is matched with the braking belt, and paper can be clamped by the braking belt.

Preferably, a connecting plate is fixedly mounted on an output shaft of the electric push rod, the tensioning wheel is fixedly mounted at the top of the connecting plate, connecting rods are rotatably connected to two sides of the connecting plate, the two connecting rods are rotatably connected with the two pressing wheels respectively, and the connecting rods are used for realizing transmission connection between the connecting plate and the two pressing wheels.

Preferably, the inner wall of the rectangular frame is symmetrically connected with two fixing frames in a sliding manner, the two pressing wheels are fixedly connected with the two fixing frames respectively, the bottom ends of the two connecting rods are rotatably connected with the two fixing frames respectively, and the pressing wheels can be limited in sliding manner by the aid of the fixing frames.

In the utility model, the automatic tension control system of the printing mechanism can drive the rectangular frame to move downwards by rotating the screw rod, so that the brake belt can move downwards, and can be matched with the friction pad to press paper, at the moment, the friction force between the friction paper and the brake belt and the friction pad can be utilized to provide certain resistance to the paper during the movement, so that the paper has certain resistance during the movement, the electric push rod is started to drive the connecting plate to move longitudinally, when the connecting plate moves upwards, the two press wheels can be pulled to be close to each other, so that the distance between the two press wheels is shortened, the contact between the brake belt and the paper can be reduced, the tension of the paper can be reduced, the brake belt can be kept in a tight state, when the connecting plate moves downwards, the contact area between the brake belt and the paper can be enlarged, make the tension increase of paper, the utility model discloses a start electric putter can conveniently adjust the area of contact of brake band and paper to tension size when this steerable paper moves, so can be according to the operating speed of printing machine to the tension of paper is adjusted at will, can effectively prevent that damaged problem from appearing in the paper.

Drawings

Fig. 1 is a front view of an automatic tension control system of a printing mechanism according to the present invention;

fig. 2 is a front view of the internal structure of the fixing seat of the automatic tension control system of the printing mechanism according to the present invention;

fig. 3 is an enlarged view of a structure a in fig. 2 of an automatic tension control system of a printing mechanism according to the present invention.

In the figure: the automatic printing machine comprises a base 1, a mounting frame 2, a scroll 3, a fixing seat 4, a printing machine 5, a moving hole 6, a rectangular frame 7, an 8U-shaped rod, a screw rod 9, a fixing frame 10, a pressing wheel 11, an electric push rod 12, a connecting plate 13, a tensioning wheel 14, a connecting rod 15 and a braking belt 16.

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.

Example one

Referring to fig. 1-3, an automatic tension control system of a printing mechanism comprises a base 1, and is characterized in that the top of the base 1 is fixedly provided with a mounting rack 2, a fixed seat 4 and a printing machine 5 in sequence, a scroll 3 is movably clamped on the mounting rack 2, paper is wound on the scroll 3, a moving hole 6 is formed in the fixed seat 4, one end of the paper penetrates through the moving hole 6 and extends onto the printing machine 5, the inner wall of the moving hole 6 is slidably connected with a rectangular frame 7, the top of the rectangular frame 7 is fixedly provided with a U-shaped rod 8, the top of the U-shaped rod 8 is rotatably connected with a screw rod 9, the top end of the screw rod 9 penetrates through the inner wall of the top of the moving hole 6 and extends to the upper side of the fixed seat 4, the screw rod 9 is in threaded connection with the fixed seat 4, two pinch rollers 11 are symmetrically slidably connected in the rectangular frame 7, the top, an electric push rod 12 is fixedly arranged on the inner wall of the rectangular frame 7, a tension wheel 14 is fixedly arranged on an output shaft of the electric push rod 12, the output shaft of the electric push rod 12 is respectively in transmission connection with the two press wheels 11, the two press wheels 11 can be conveniently driven to mutually approach or separate by the electric push rod 12, the tension wheel 14 and the two press wheels 11 are in transmission connection with a same brake belt 16, a friction pad is fixedly arranged on the inner wall of the bottom of the moving hole 6 and matched with the brake belt 16, paper can be clamped by the brake belt 16, a connecting plate 13 is fixedly arranged on the output shaft of the electric push rod 12, the tension wheel 14 is fixedly arranged at the top of the connecting plate 13, connecting rods 15 are rotatably connected to both sides of the connecting plate 13, the two connecting rods 15 are respectively rotatably connected with the two press wheels 11, and the connecting plate 13, two mounts 10 are connected to the inner wall of rectangular frame 7 in a symmetrical sliding manner, two pinch rollers 11 are fixedly connected with two mounts 10 respectively, the bottom ends of two connecting rods 15 are rotatably connected with two mounts 10 respectively, and the pinch rollers 11 can be limited by sliding through the mounts 10.

When in practical use, firstly, paper on a reel 3 is uncoiled, one end of the paper penetrates through a moving part 6 and is inserted into a printing machine, then a screw 9 can be rotated to drive a rectangular frame 7 to move downwards, so that a braking belt 16 can move downwards, and can be matched with a friction pad to press the paper tightly, at the moment, friction force between the friction paper and the braking belt 16 and the friction pad can be utilized to provide certain resistance force when the paper moves, so that certain resistance force exists when the paper moves, a connecting plate 13 can be driven to move longitudinally by starting an electric push rod 12, when the connecting plate 13 moves upwards, two press wheels 11 can be pulled to approach each other, the distance between the two press wheels 11 is shortened, so that the braking belt 16 can reduce contact with the paper, the tension of the paper is reduced, and the electric push rod 12 can push the tension wheel 14 to move upwards, when two pinch rollers 11 are close to each other, still can keep braking area 16 in the state of tautening, when connecting plate 13 moved downwards, can make two pinch rollers 11 keep away from each other to this area of contact that can enlarge braking area 16 and paper, make the tension increase of paper, so can adjust the tension of paper at will according to the operating speed of printing machine 5, can effectively prevent that the damaged problem from appearing in the paper.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides an automatic tension control system of printing mechanism, includes the base, its characterized in that, the top of base fixed mounting has mounting bracket, fixing base and printing machine in proper order, the spool is equipped with to activity card on the mounting bracket, around being equipped with the paper on the spool, and seted up on the fixing base and removed the hole, the one end of paper runs through and removes the hole and extend to on the printing machine, sliding connection has the rectangular frame on the inner wall of removal hole, the top fixed mounting of rectangular frame has U type pole, and the top of U type pole rotates and is connected with the screw rod, the top of screw rod runs through the top inner wall of removal hole and extends to the top of fixing base, screw rod and fixing base threaded connection.

2. The automatic tension control system of a printing mechanism according to claim 1, wherein two press rollers are symmetrically and slidably connected in the rectangular frame, the top and bottom of the press rollers extend to the upper side and the lower side of the rectangular frame respectively, an electric push rod is fixedly mounted on the inner wall of the rectangular frame, a tension wheel is fixedly mounted on an output shaft of the electric push rod, and the output shaft of the electric push rod is in transmission connection with the two press rollers respectively.

3. The automatic tension control system of a printing mechanism as claimed in claim 2, wherein the same brake belt is connected to the tension roller and the two pressing rollers in a transmission manner, and a friction pad is fixedly mounted on the inner wall of the bottom of the moving hole and is matched with the brake belt.

4. The automatic tension control system of a printing mechanism as claimed in claim 2, wherein the output shaft of the electric push rod is fixedly mounted with a connecting plate, and the tension wheel is fixedly mounted on the top of the connecting plate, and both sides of the connecting plate are rotatably connected with connecting rods, and the two connecting rods are respectively rotatably connected with the two press wheels.

5. The automatic tension control system of a printing mechanism as claimed in claim 1, wherein the inner wall of the rectangular frame is symmetrically and slidably connected with two fixing frames, the two pressing wheels are respectively and fixedly connected with the two fixing frames, and the bottom ends of the two connecting rods are respectively and rotatably connected with the two fixing frames.