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CN-224210767-U - Printing equipment capable of automatically adjusting paper tension

CN224210767UCN 224210767 UCN224210767 UCN 224210767UCN-224210767-U

Abstract

The utility model relates to the technical field of printers and discloses printing equipment capable of automatically adjusting paper tension, which comprises a printer, wherein the inner wall of the printer is rotationally connected with a plurality of conveying rollers, correction assemblies are arranged at the bottoms of the conveying rollers, the inner wall of the printer is provided with an adjusting assembly, the adjusting assembly comprises an adjusting roller, the adjusting roller is positioned on the inner wall of the printer, sliding grooves are formed in two sides of the inner wall of the printer, two ends of the adjusting roller are slidably connected with the inner walls of the sliding grooves, a rotating shaft is rotationally connected inside the printer, and one end of the rotating shaft is fixedly connected with a worm wheel. According to the utility model, the first transmission plate is driven to rotate by the fixing plate, the transmission assembly is utilized to push the adjusting roller to move up and down on the inner wall of the chute, and then the height of the adjusting roller is fixed by self-locking between the worm and the worm wheel, so that the tension adjusting effect on the surface of paper is achieved, the quality and consistency of printed matters are improved, and the rejection rate is reduced.

Inventors

  • Jin Liyin

Assignees

  • 武汉银翔印刷有限公司

Dates

Publication Date
20260508
Application Date
20250626

Claims (8)

  1. 1. The printing equipment capable of automatically adjusting the paper tension comprises a printing machine (1) and is characterized in that a plurality of conveying rollers (2) are rotatably connected to the inner wall of the printing machine (1), correction components are arranged at the bottoms of the conveying rollers (2), and an adjusting component is arranged on the inner wall of the printing machine (1); The adjusting component comprises an adjusting roller (3), the adjusting roller (3) is located the inner wall of the printing machine (1), sliding grooves (4) are formed in two sides of the inner wall of the printing machine (1), two ends of the adjusting roller (3) are slidably connected to a plurality of inner walls of the sliding grooves (4), a rotating shaft (10) is rotatably connected to the inside of the printing machine (1), a worm wheel (9) is fixedly connected to one end of the rotating shaft (10), a fixing plate (5) and a first supporting plate (8) are fixedly connected to one side of the printing machine (1), a first motor (6) is fixedly connected to one side of the fixing plate, a worm (7) is fixedly connected to the output end of the first motor, one end of the worm (7) is rotatably connected to the inner portion of the first supporting plate (8), the worm (7) is meshed with the worm wheel (9), a plurality of first driving plates (13) are fixedly connected to the outer wall of the rotating shaft (10), and the outer wall of the first driving plate (13) is provided with a driving component.
  2. 2. A printing device capable of automatically adjusting paper tension according to claim 1, wherein each transmission assembly comprises a first connecting strip (14), each first connecting strip (14) is rotatably connected to the inside of a first transmission plate (13), and a second supporting plate (11) is fixedly connected to the inner wall of the printing machine (1).
  3. 3. The printing device capable of automatically adjusting paper tension according to claim 2, wherein a plurality of connecting seats (12) are fixedly connected to the top of the second supporting plate (11), the rotating shaft (10) is rotatably connected to the inside of the plurality of connecting seats (12), and two adjacent connecting seats (12) are located on two sides of the first transmission plate (13).
  4. 4. A printing device capable of automatically adjusting paper tension according to claim 3, wherein the outer wall of each first connecting rod (14) is rotationally connected with a connecting rod (15), each second connecting rod (16) is rotationally connected inside each connecting rod (15), one end of each second connecting rod (16) is fixedly connected with a second transmission plate (17), each second transmission plate (17) is rotationally connected inside each second transmission plate (18), and the inner walls of a plurality of limiting rings (18) are fixedly connected with the outer wall of the adjusting roller (3).
  5. 5. The printing equipment capable of automatically adjusting paper tension according to claim 1, wherein the correction component comprises a first air cylinder (23) and a plurality of second air cylinders (24), the first air cylinder (23) and the second air cylinders (24) are positioned at the bottoms of the conveying rollers (2), a plurality of spray heads are fixedly connected to the tops of the first air cylinder (23) and the second air cylinders (24), an included angle between the spray heads at the tops of the first air cylinders (23) and the transverse axis of the spray heads is ninety degrees, an included angle between the spray heads at the tops of the second air cylinders (24) and the transverse axis of the spray heads is sixty degrees, and a sensor is arranged on the outer wall of the printer (1) and used for detecting the position of paper.
  6. 6. The printing device capable of automatically adjusting paper tension according to claim 5, wherein the inner wall of the printing machine (1) is fixedly connected with a support frame (19) and a support plate III (22), the inner wall of the support frame (19) is fixedly connected with a blower (20), the output end of the blower (20) penetrates through the support plate III (22) and is fixedly connected with a bellows (21), and the bottom of the bellows (21) is fixedly connected to the top of the support plate III (22).
  7. 7. The printing device for automatically adjusting paper tension according to claim 6, wherein the top of the bellows (21) is fixedly connected to the bottom of the first air duct (23), and the bellows (21) is communicated with the first air duct (23) and the second air ducts (24) through a plurality of conveying hoses (26).
  8. 8. The printing device capable of automatically adjusting paper tension according to claim 7, wherein a plurality of motors II (25) are fixedly connected to the top of the support plate III (22), and the output shaft of each motor II (25) penetrates through the support plate III (22) and is fixedly connected with the bottom of the air duct II (24).

Description

Printing equipment capable of automatically adjusting paper tension Technical Field The utility model relates to the field of printing machines, in particular to printing equipment capable of automatically adjusting paper tension. Background Paper printing equipment is essential equipment in the industries of modern publishing, packaging, advertising and the like, and the technical level of the paper printing equipment directly determines the quality, production efficiency and cost of printed matters. With the continuous increase in demands of the market for the fineness and consistency of printed matters, printing equipment is rapidly developing toward high speed, automation and high precision. In the whole printing process, the paper is used as a printing stock, the state control of the paper in the high-speed conveying process is one of key links for guaranteeing the final printing quality, and particularly in multicolor overprinting and high-quality image copying, the accurate control of the physical state of the paper is particularly important, wherein the stable control of the paper tension is a core technical problem throughout. In the prior art, some printing devices typically employ dancer or oscillating roller mechanisms in order to control the tension of the paper during transport. Such mechanisms apply pressure to a movable roller by means of springs, air cylinders or weights, which press against the paper. When the tension of the paper changes, the floating roller swings up and down or back and forth along with the tension, the displacement change of the floating roller is detected by the position sensor, and then a signal is fed back to the control system, so that the brake moment of the unwinding shaft or the rotating speed of the driving motor is regulated, and the tension of the paper is indirectly regulated. The feedback control mode can realize automatic tension adjustment to a certain extent, and is a relatively general technical scheme at present. However, the prior art has inherent defects in practical application. The main problem is that the stability and accuracy of tension control are insufficient. Because the dancer adjustment system relies on indirect feedback of mechanical displacement, the whole adjustment link has obvious response delay and inertia influence, and when the printing machine starts, stops or the speed changes sharply, the system cannot compensate instantaneously, and paper tension is easy to fluctuate sharply. In addition, such adjustment mechanisms often lack precise and reliable self-locking capability, and under the continuous vibration generated by long-time high-speed operation of the equipment, the adjusted roller position is easy to slightly deviate, so that the set tension value cannot be stably maintained. Such unstable sheet tension may directly cause a series of serious production problems such as misregistration, pattern color drift in multicolor printing, or formation of wrinkles on the surface of the sheet which are difficult to eliminate, and even cause breakage of the sheet to interrupt production, thereby seriously affecting quality and consistency of printed matter and leading to a high reject rate. Disclosure of Invention In order to overcome the defects, the utility model provides printing equipment capable of automatically adjusting the tension of paper, and aims to solve the problems of inaccurate overprinting, color drift, wrinkling and even breakage of paper, which are easily caused by unstable tension of the paper in the traditional printing equipment. In order to achieve the above purpose, the present utility model adopts the following technical scheme: The printing equipment capable of automatically adjusting the paper tension comprises a printing machine, wherein a plurality of conveying rollers are rotatably connected to the inner wall of the printing machine, correction components are arranged at the bottoms of the conveying rollers, and an adjusting component is arranged on the inner wall of the printing machine; The adjusting component comprises an adjusting roller, the adjusting roller is located the inner wall of the printing machine, sliding grooves are formed in two sides of the inner wall of the printing machine, two ends of the adjusting roller are slidably connected to the inner walls of the sliding grooves, a rotating shaft is rotatably connected to the inside of the printing machine, one end of the rotating shaft is fixedly connected with a worm wheel, one side of the printing machine is fixedly connected with a fixing plate and a first supporting plate, one side of the fixing plate is fixedly connected with a first motor, one output end of the motor is fixedly connected with a worm, one end of the worm is rotatably connected to the inside of the first supporting plate, the worm is meshed with the worm wheel, one outer wall of the rotating shaft is fixedly connected with a plurality of first transmission plates, and one ou