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Double-color roller printing machine matched with fixed-step-length stepping traction equipment

A technology of traction equipment and printing machines, which is applied to printing machines, rotary printing machines, printing, etc., and can solve problems such as high cost, long paper winding, and the impact of packaging color registration on the plate, etc.

Pending Publication Date: 2021-02-23
HANGZHOU ZHONGYI AUTOMATION EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned two-color printing equipment uses two printing machines side by side or superimposed, which takes up a lot of space, high cost, and the wrapping paper is too long, which will affect the color registration of the packaging, etc.
And it cannot be matched with fixed-step step-by-step traction equipment (such as packaging machines) to complete two-color printing online

Method used

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  • Double-color roller printing machine matched with fixed-step-length stepping traction equipment
  • Double-color roller printing machine matched with fixed-step-length stepping traction equipment
  • Double-color roller printing machine matched with fixed-step-length stepping traction equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] like figure 1 As shown, the present invention is a two-color roller printing machine matched with fixed-step stepping traction equipment, including:

[0068] A guiding device for guiding the progress of the paper 5 when the traction device pulls the paper 5 to step;

[0069] The first printing cylinder 2, whose rotation is driven and controlled by a motor;

[0070] The second printing cylinder 8, whose rotation is driven and controlled by a motor;

[0071] The printing cylinder 1 is located between the two printing cylinders and can move relative to the two printing cylinders respectively;

[0072] The paper feed roller 4 moves between the first position and the second position during the interval between the steps of the traction device, and drives the paper 5 to reciprocate;

[0073] When the paper feed roller 4 moves from the first position to the second position, the printing cylinder 1 is attached to the surface of the first printing cylinder 2 (so that the pape...

Embodiment 2

[0094] like image 3 As shown, this embodiment is basically the same as Embodiment 1, the difference is:

[0095] The printing machine also includes an adjusting roller 13 as one of the paper 5 conveying rollers, which can move relative to the printing cylinder 1 to adjust the distance between it and the printing cylinder 1. The paper winding length between the tangent points J and K of the two printing cylinders can increase the residence time after printing, ensure the ink is dry, and avoid the printing ink from polluting the printing machine or paper due to undried printing ink.

[0096] When carrying out two-color printing, the winding length between the printing cylinder 1 and the tangent points J and K of the two printing cylinders is nH; where n is an integer greater than or equal to 1, and H is the moving step of the traction device, where The distance between the paper feed roller 4 at position A and position B is L / 2 (that is, the distance between the first position...

Embodiment 3

[0106] like Figure 5 As shown, this embodiment is basically the same as Embodiment 2, the difference is:

[0107] In Embodiment 2, the relative movement between the printing cylinder 1 and the two printing cylinders (the first printing cylinder and the second printing cylinder) is realized by the swinging of the printing cylinder 1 (the two printing cylinders do not move); in this embodiment The position of the printing cylinder 1 is fixed, and the first printing cylinder 2 and the second printing cylinder 8 are arranged on the frame of the printing machine through the printing cylinder swing mechanism, so that the two printing cylinders can swing relative to the printing cylinder 1 . In addition to realizing the function of Embodiment 2 (certainly, since the printing cylinder is fixed, there is no need to realize the printing cylinder reset function), this embodiment can also realize that the first printing cylinder 2 and the second printing cylinder 8 are attached to the pr...

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Abstract

The invention discloses a double-color roller printing machine matched with fixed-step-length stepping traction equipment. The double-color roller printing machine matched with the fixed-step-length stepping traction equipment is compact in structure and high in printing efficiency. According to the scheme, the double-color roller printing machine matched with the fixed-step-length stepping traction equipment comprises a guiding device, a first printing roller, a second printing roller, a printing roller and a paper feeding rolling shaft, wherein the paper feeding rolling shaft moves between afirst position and a second position in the intermittent period of stepping of the traction equipment to drive paper to reciprocate; when the paper feeding rolling shaft moves from the first positionto the second position, the printing roller is attached to the surface of the first printing roller, and the paper moves to drive the printing roller and the first printing roller to roll oppositelyto achieve first-color printing; and when the paper feeding rolling shaft moves from the second position to the first position, the printing roller is attached to the surface of the second printing roller, and the paper moves to drive the printing roller and the second printing roller to roll oppositely to achieve second-color printing. The double-color roller printing machine is applied to the packaging and printing industry.

Description

technical field [0001] The invention relates to the field of printing machines. Specifically, this printing machine is used to complete two-color printing on-line in conjunction with fixed-step and step-by-step traction equipment (such as a packaging machine). When printing, the paper does not need to move synchronously with the traction equipment at the same line speed, and is independent Control, compact structure, efficient printing, accurate color registration and plate registration, flexible application occasions. Background technique [0002] Printing machines are widely used in food, beverage, tobacco, medicine, health care products, cosmetics industries, especially in flexible packaging materials printing and paper container packaging printing. [0003] As the packaging colors become more and more abundant, some two-color printing machines have gradually appeared on the market. For example, the Chinese invention with the patent number 201820221336.4 discloses an auto...

Claims

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Application Information

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IPC IPC(8): B41F17/00
CPCB41F17/00
Inventor 施睿李旦洋沈剑帆钱麟
Owner HANGZHOU ZHONGYI AUTOMATION EQUIP
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