CN114425906A - Rotary printing machine - Google Patents

Rotary printing machine Download PDF

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Publication number
CN114425906A
CN114425906A CN202210088735.9A CN202210088735A CN114425906A CN 114425906 A CN114425906 A CN 114425906A CN 202210088735 A CN202210088735 A CN 202210088735A CN 114425906 A CN114425906 A CN 114425906A
Authority
CN
China
Prior art keywords
paper
guillotine
cylinder
driving roller
roller
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202210088735.9A
Other languages
Chinese (zh)
Inventor
郑文军
郭少峰
李思玮
崔浩军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHAANXI MEIHANG SAFETY PRINTING CO Ltd
Aerial Photogrammetry and Remote Sensing Co Ltd
Original Assignee
SHAANXI MEIHANG SAFETY PRINTING CO Ltd
Aerial Photogrammetry and Remote Sensing Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SHAANXI MEIHANG SAFETY PRINTING CO Ltd, Aerial Photogrammetry and Remote Sensing Co Ltd filed Critical SHAANXI MEIHANG SAFETY PRINTING CO Ltd
Priority to CN202210088735.9A priority Critical patent/CN114425906A/en
Publication of CN114425906A publication Critical patent/CN114425906A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F13/00Common details of rotary presses or machines
    • B41F13/54Auxiliary folding, cutting, collecting or depositing of sheets or webs
    • B41F13/56Folding or cutting
    • B41F13/58Folding or cutting lengthwise
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F13/00Common details of rotary presses or machines
    • B41F13/02Conveying or guiding webs through presses or machines
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H20/00Advancing webs
    • B65H20/02Advancing webs by friction roller

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Handling Of Sheets (AREA)

Abstract

The application provides a rotary press, which relates to the technical field of printing equipment, and comprises a rack, a paper feeding roller, a driving roller, a traction device and a control assembly, wherein the paper feeding roller and the driving roller are fixed on the rack; the control component controls the driving roller to rotate the guillotine to the second target position to fall into the guillotine when the first target position senses the paper. Through the rotational speed of control initiative cylinder, make the hand hay cutter rotate the relevant position, cut out the dotted line on the paper, the paper of different specifications all can be through control initiative cylinder rotational speed and cut out the dotted line in the specific position, reduce the quantity of initiative cylinder by a wide margin, reduce cost, when printing the paper of different specifications, need not change the initiative cylinder again, the hand hay cutter dotted line can be accomplished to a hand hay cutter of initiative cylinder cooperation, improves production efficiency.

Description

Rotary printing machine
Technical Field
The application relates to the technical field of printing equipment, in particular to a rotary press.
Background
When the paper is used, dotted lines can be designed on some paper so that the paper can be easily torn along the dotted lines during subsequent use, and when the rotary printing machine prints the paper, the dotted lines are cut out through a guillotine arranged on the roller.
When the existing rotary printing machine prints, a roll paper is pulled and unfolded through a traction device, in the process of unfolding the paper, a series of printing lines are used for printing patterns on the unfolded paper, after one roll paper printing pattern is formed, the roll paper is cut according to the length direction of the paper, a plurality of single finished paper can be obtained, a plurality of dotted lines can be arranged on one finished paper, therefore, a plurality of guillotines are correspondingly arranged on a roller, the roller rotates for a circle, the plurality of guillotines cut out the dotted lines at corresponding positions on one finished paper, and therefore, the length of the single finished paper needs to be matched with the circumference of the roller. Therefore, when the finished paper with different specifications is replaced, the roller is replaced correspondingly, the number and the position of the guillotine on the roller are correspondingly replaced when the number and the position of the dotted lines on the finished paper are different, so that the roller for manufacturing the paper and the guillotine have more specifications, the production and the replacement are inconvenient, and the cost is high.
Disclosure of Invention
An object of this application is to provide a rotary press to only set up a hand hay cutter on making the initiative cylinder through the rotational speed of control initiative cylinder, just can adapt to the paper of different specifications with the hand hay cutter play dotted line, improve production efficiency, reduction in production cost.
One aspect of the application provides a rotary press, including the frame and be fixed in paper feeding cylinder and the initiative cylinder in the frame, still include draw gear and control assembly, the paper sets up on the paper feeding cylinder, the draw gear draws the paper on the paper feeding cylinder, and make the paper linear motion through the drive of the initiative cylinder, be equipped with the hand hay cutter on the initiative cylinder, the control assembly is connected with the power supply electricity of initiative cylinder; the control component controls the driving roller to rotate the guillotine to a second target position to fall the guillotine when the first target position senses paper.
Optionally, the control assembly includes an inductor and a controller electrically connected to each other, the inductor is fixed to the frame, the inductor is used for inducing the first target position, and the controller controls the power source according to feedback of the inductor to change the rotation speed of the driving roller, so that the guillotine falls at the second target position.
Optionally, a distance S between the first target position and the second target position1Satisfies the following conditions: s1/V1=S2/V2(ii) a Wherein V1Is the traction speed of the traction means, S2Is the circumference of the driving roller, V2Is the rotation speed of the driving roller.
Optionally, the active drum and the guillotine are removably connected.
Optionally, a clamping groove is formed in the surface of the driving roller, one side of the guillotine is arranged in the clamping groove, the other side of the guillotine extends out of the surface of the driving roller, and the guillotine is connected with the clamping groove through a screw.
Optionally, the guillotine includes a cutter body and a cutting edge disposed on the cutter body, one side of the cutter body is located in the slot, and the cutting edge extends out of the surface of the driving roller.
Optionally, the rack is further provided with a driven roller, and the driven roller is located below the projection of the driving roller and is matched with the driving roller to roll so as to press and convey paper.
Optionally, the machine frame is further provided with a plurality of printing cylinders, the plurality of printing cylinders and the driving cylinder are arranged in parallel along the traction direction, the printing cylinders are used for printing patterns on paper, and the paper is conveyed below the printing cylinders.
Optionally, the machine frame is further provided with a plurality of auxiliary rollers, the plurality of auxiliary rollers and the driving roller are arranged in parallel along a traction direction, and the paper is conveyed above the auxiliary rollers.
Optionally, the power source of the driving roller is a motor.
The application provides a rotary press, including the frame and be fixed in paper feeding cylinder and the initiative cylinder in the frame, on paper feeding cylinder and initiative cylinder all were fixed in the frame, the paper feeding cylinder was used for setting up the roll web, still include draw gear and control assembly, the paper on the paper feeding cylinder is drawn to draw gear, the rotation of cooperation paper feeding cylinder can expand the roll web, linear motion is done when the paper is drawn and is expanded, the paper is through the initiative cylinder, be equipped with the hand hay cutter on the initiative cylinder, the hand hay cutter can go out the dotted line on the paper hand hay cutter. The control assembly is electrically connected with a power source of the driving roller and used for controlling the rotating speed of the driving roller, when the control assembly senses paper at the first target position, the rotating speed of the driving roller is controlled, the guillotine of the driving roller rotates to the second target position to fall into the guillotine, and the dashed line is cut at the falling guillotine position. Through the rotational speed of control initiative cylinder, make the hand hay cutter rotate the relevant position, the broken line is cut off on the paper, so, the paper of different specifications all can be through control initiative cylinder rotational speed and at the broken line is cut off to the specific position, the initiative cylinder of corresponding specification all will be changed to the paper that does not need every kind of specification, reduce the quantity of initiative cylinder by a wide margin, and therefore, the cost is reduced, when printing the paper of different specifications simultaneously, the initiative cylinder also need not to be changed, the broken line can be accomplished to a hand hay cutter of initiative cylinder cooperation, and the production efficiency is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments of the present application will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.
FIG. 1 is a schematic view of a rotary printing press configuration provided herein;
FIG. 2 is a schematic roll-out view;
fig. 3 is a schematic view of a partial structure of a rotary printing press according to the present application.
Icon: 100-a frame; 101-a paper feed roller; 102-a driving roller; 103-chopper; 104-a driven roller; 105-an electric machine; 106-a sensor; 107-printing cylinder; 108-an auxiliary drum; 200-web; 201-finished paper; 202-a first target position; 203-second target position.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.
In the description of the present application, it should be noted that the terms "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the application usually place when using, and are only used for convenience in describing the present application and simplifying the description, but do not indicate or imply that the devices or elements that are referred to must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
It should also be noted that, unless expressly stated or limited otherwise, the terms "disposed" and "connected" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
After the roll paper 200 is unfolded, as shown in fig. 2, the roll paper 200 is drawn and unfolded by a drawing device to form a long paper, a series of printing lines are needed in the drawing and advancing process of the long paper to print patterns on the long paper, after the printed patterns are formed, the long paper is cut in the length direction of the long paper, a plurality of single finished paper 201 can be obtained, the patterns of each finished paper 201 are the same, and a batch of paper printing is completed.
A sheet of finished paper 201 may have a plurality of dotted lines, for example, in fig. 3, two dotted lines are provided on a sheet of finished paper 201, so that two guillotines are correspondingly provided on the drum, the drum rotates for one circle, the two guillotines cut two dotted lines at corresponding positions on a sheet of finished paper 201, and during the continuous advance of the long sheet, the drum rotates circularly, and two dotted lines are cut on each sheet of finished paper 201, which requires that the length of a single sheet of finished paper 201 matches the circumference of the drum. However, when the length of the finished paper 201 is changed, the corresponding cylinder needs to be replaced, the arrangement position of the guillotine on the cylinder is different, and if the number and the position of the dotted lines on the finished paper 201 are different, the arrangement position of the guillotine on the cylinder is different, the finished paper 201 (including the length, the number and the position of the dotted lines of the finished paper 201) of one specification basically corresponds to the cylinder (including the circumference of the cylinder and the arrangement position of the guillotine on the cylinder) of one specification, so that the specifications of the cylinder and the guillotine for making the paper are more, the production and the replacement are inconvenient, and the cost is high.
In order to solve the above problems, on this basis, the embodiment of the present application provides a rotary press, in which only one guillotine 103 is disposed on the driving roller 102, and by controlling the rotation speed of the driving roller 102, so that the driving roller 102 cuts the dotted lines at the corresponding positions of the paper, one driving roller 102 and one guillotine 103 can meet the requirements of the paper with different specifications, thereby improving the printing efficiency.
Specifically, referring to fig. 1, a rotary printing press according to an embodiment of the present application includes: the paper feeding device comprises a rack 100, a paper feeding roller 101 and a driving roller 102 which are fixed on the rack 100, and further comprises a traction device (not shown in the figure) and a control component, wherein paper is arranged on the paper feeding roller 101, the traction device is used for traction of the paper on the paper feeding roller 101 and enables the paper to move linearly under the driving of the driving roller 102, a guillotine 103 is arranged on the driving roller 102, and the control component is further electrically connected with a power source of the driving roller 102; the control assembly controls the drive cylinder 102 to rotate the guillotine 103 to the second target position 203 to chop when the first target position 202 senses the paper.
The roll paper 200 is sleeved on the paper feeding roller 101, one end of the paper is pulled by the traction device to stretch the roll paper 200, and the stretched paper moves forwards in a straight line under the traction of the traction device.
In the process of conveying the paper, the paper passes through the driving roller 102, and the driving roller 102 is provided with a chopper 103 which can chop the paper into dotted lines.
The driving roller 102 is connected with a power source, the control component is electrically connected with the power source to control the rotating speed of the driving roller 102, the guillotine 103 is rotated to the corresponding position by controlling the rotating speed of the driving roller 102 to chop the broken lines on the paper, and thus, the paper with different specifications can be chopped at the specific position by controlling the rotating speed of the driving roller 102.
The power source may be a motor 105, and the rotation speed of the driving roller 102 connected to the motor 105 is changed by changing the rotation speed of the motor 105.
The control process comprises the following steps: the control component senses the first target position 202 of the paper, after the sensing signal is obtained, the power source is controlled to change the rotating speed of the driving roller 102, and when the paper is transmitted to the position of the driving roller 102 through traction, the guillotine 103 rotates to the position needing to chop the broken line, and the broken line is chopped on the paper.
The embodiment of the application provides a rotary printing machine includes: the paper feeding device comprises a rack 100, a paper feeding roller 101 and an active roller 102, wherein the paper feeding roller 101 and the active roller 102 are fixed on the rack 100, the paper feeding roller 101 is used for setting roll paper 200, the paper feeding device further comprises a traction device and a control component, the traction device is used for drawing paper on the paper feeding roller 101, the paper feeding device is matched with the rotation of the paper feeding roller 101 and can unfold the roll paper 200, the paper is drawn to be unfolded linearly, the paper passes through the active roller 102, a guillotine 103 is arranged on the active roller 102, and the guillotine 103 can cut out dotted lines on the paper. The control component is electrically connected with a power source of the driving roller 102 and used for controlling the rotating speed of the driving roller 102, when the control component senses paper at the first target position 202, the rotating speed of the driving roller 102 is controlled, the guillotine 103 of the driving roller 102 rotates to the second target position 203 to fall, and a broken line is cut at the falling guillotine. Through the rotational speed of control initiative cylinder 102, make the hand hay cutter 103 rotate the relevant position, cut the dotted line on the paper, so, the paper of different specifications all can be cut the dotted line in the specific position through control initiative cylinder 102 rotational speed, the initiative cylinder 102 of corresponding specification all need be changed to the paper that does not need every specification, reduce the quantity of initiative cylinder 102 by a wide margin, therefore, the cost is reduced, when printing the paper of different specifications simultaneously, also need not to change initiative cylinder 102 again, the hand hay cutter dotted line can be accomplished to a cooperation hand hay cutter 103 of initiative cylinder 102, and the production efficiency is improved.
Further, the control assembly comprises a sensor 106 and a controller which are electrically connected, the sensor 106 is fixed on the frame 100, the sensor 106 is used for sensing the first target position 202, and the controller controls the power source according to the feedback of the sensor 106 to change the rotating speed of the driving roller 102, so that the guillotine 103 falls at the second target position 203.
The sensor 106 senses the first target position 202, the sensed signal is fed back to the controller, the controller controls the power source to change the rotating speed of the driving roller 102 after receiving the sensed signal, when the paper is transmitted to the driving roller 102, the guillotine 103 just rotates to the second target position 203, a broken line is cut on the paper, the driving roller 102 continuously rotates, the guillotine 103 rotates along with the paper, the paper is continuously transmitted, the broken line is cut at the second target position, and the operation is repeated.
Wherein the distance S between the first target position 202 and the second target position 2031Satisfies the following conditions:
S1/V1=S2/V2 (1);
v in formula (1)1Is the traction speed of the traction means, S2Is the circumference of the active cylinder 102, V2Is the rotational speed of the drive roller 102.
Visible, distance S1And a traction speed V1The circumference S of the driving roller 1022And a rotational speed V2Are all correlated, when the distance S1When the change is made, that is, the specification of the sheet is changed, it is desirable that the equation is satisfied without changing the circumference S of the active cylinder 1022I.e. the circumference S of the active cylinder 102 without having to replace the active cylinder 102 and the position of the guillotine 103 on the active cylinder 1022For the fixed value, in which case only the traction speed V needs to be changed1Or the rotational speed V of the driving roller 1022Or simultaneously varying the traction speed V1And the rotational speed V of the driving roller 1022Can satisfyThe purpose of adapting one active roller 102 to different paper sizes is achieved.
Taking fig. 2 as an example, a part of a diagram of the web 200 after being unfolded is shown, five pieces of single finished paper 201 can be cut after printing is completed, each piece of finished paper 201 is provided with a black block, the sensor 106 is used for sensing the black block, the black block is a first target position 202, each piece of finished paper 201 needs to be cut into two dotted lines, the black block is coated on the paper in advance, the dotted line position is a parameter required by design, the dotted line position is a second target position 203, and the distance S between the black block and the first dotted line is a second target position 2031Traction speed V of the traction means1The circumference S of the active cylinder 102 is constant within the same batch2It was also determined that, by the formula (1), the rotation speed V of the driving roller 102 can be obtained2By controlling the rotation speed of the power source of the driving roller 102 to be V2The straw can fall at the first dotted line. Suppose the distance S from the black block to the second dotted line1' the corresponding rotation speed of the power source of the driving roller 102 is V2' after cutting the first dotted line, the rotating speed of the power source of the driving roller 102 is changed to V2' the second dotted line can be cut, then the second finished paper 201 is treated in the same way, the sensor 106 first senses the black block, and the rotating speed of the power source of the driving roller 102 is changed through the controller, so that the first dotted line and the second dotted line are respectively cut.
Of course, fig. 2 is only one embodiment of the present application, and the black blocks and the broken lines on the paper are arranged at different positions, the above method may also be used to realize the broken lines.
For example, when there is only one black block in fig. 2, the black block is disposed before the first dotted line along the paper conveying direction, the sensor 106 only needs to sense the first black block, but the distances between the black block and the first, second, and third dotted lines … … are determined before printing, then the rotation speed of the active cylinder 102 is changed to cut the first dotted line, then according to the formula (1), the controller calculates the rotation speed of the active cylinder 102 corresponding to the second dotted line, and changes the rotation speed of the active cylinder 102 again to cut the second dotted line, and so on, the operation of cutting the dotted line of one web 200 can be completed.
Further, to facilitate replacement of the guillotine 103, for example, when the guillotine 103 is worn and a new guillotine 103 is replaced, the guillotine 103 and the drive drum 102 are removably connected.
A clamping groove is formed in the surface of the driving roller 102, one side of the guillotine 103 is arranged in the clamping groove, the other side of the guillotine 103 extends out of the surface of the driving roller 102, and the guillotine 103 is connected with the clamping groove through a screw.
One side of the guillotine 103 arranged in the clamping groove is pressed by screws, so that the guillotine 103 is stably connected to the driving roller 102, and meanwhile, the guillotine 103 is convenient to detach by screw connection, so that the guillotine 103 can be conveniently replaced.
The guillotine 103 includes a cutter body and a blade disposed on the cutter body, one side of the cutter body is located in the slot, and the blade extends out of the surface of the driving roller 102.
The cutter body is positioned in the clamping groove, the cutter 103 is fixed on the driving roller 102 by fixing the cutter body and the clamping groove, and the cutting edge is used for cutting dotted lines, so that the cutting edge extends out of the surface of the driving roller 102 and can be contacted with paper.
In order to improve the wear resistance and sharpness of the cutting edge, the cutting edge can be made of high-speed steel, the high-speed steel is high in strength and good in grindability, and the cutting edge made of the high-speed steel is suitable for manufacturing cutters and has a longer service life.
As shown in fig. 3, the frame 100 is further provided with a driven roller 104, and the driven roller 104 is located below the projection of the driving roller 102 and cooperates with the driving roller 102 to press and convey the paper.
The projections of the driven roller 104 and the driving roller 102 on the paper are coincident, the paper passes through the gap between the driving roller 102 and the driven roller 104, and the driven roller 104 is used for matching with the driving roller 102 to press the paper, so that the chopper 103 cuts the broken lines on the paper.
The gap between the driving drum 102 and the driven drum 104 is slightly larger than the height of the guillotine 103 extending above the surface of the driving drum 102 to avoid interference with the driven drum 104 when the guillotine 103 is rotating down.
The frame 100 is further provided with a plurality of printing cylinders 107, the plurality of printing cylinders 107 and the driving cylinder 102 are arranged in parallel in the traction direction, the sheet is transported below the printing cylinders 107, and the printing cylinders 107 are used for printing patterns on the sheet.
The printing cylinder 107 is provided with a pattern, when the paper is transported below the printing cylinder 107, the pattern on the printing cylinder 107 is printed on the paper, and the pattern is deepened one time after the paper passes through each printing cylinder 107, thereby completing the pattern printing.
The frame 100 is further provided with a plurality of auxiliary rollers 108, the plurality of auxiliary rollers 108 and the driving roller 102 are arranged in parallel in a traction direction, and the paper is conveyed over the auxiliary rollers 108.
The auxiliary roller 108 is used for assisting the traction device, when the traction device is used for traction paper transmission, the auxiliary roller 108 rotates to drive the paper transmission to transmit an auxiliary force to the paper, and meanwhile, the auxiliary roller 108 also has the function of stretching and straightening the paper, so that the paper is straightened in the transmission process, the printing roller 107 and the active roller 102 work under the condition that the paper is straightened, and the printing quality and the quality of a broken line are improved.
The auxiliary cylinders 108, the printing cylinders 107, the driving cylinder 102, the driven cylinder 104 and the paper feeding cylinder 101 are all parallel to each other, but the auxiliary cylinders 108, the printing cylinders 107, the driving cylinder 102, the driven cylinder 104 and the paper feeding cylinder 101 are not all located on the same horizontal plane, and the printing cylinders 107 and the auxiliary cylinders 108 may not be located on the same horizontal plane.
For example, at least one auxiliary cylinder 108 may be disposed between the two printing cylinders 107 for straightening the paper to facilitate printing; auxiliary cylinders 108 can be respectively arranged on two sides of the driving cylinder 102 along the paper conveying direction, so that the paper can be straightened conveniently to facilitate the chopping knife 103 to chop the broken lines on the paper.
To sum up, when the rotary printing press provided by the embodiment of the present application operates, the web 200 is sleeved on the paper feeding roller 101, the traction device draws the paper to spread and transmit, the paper is pre-provided with a plurality of black blocks (first target positions 202), the paper passes through the printing roller 107, the auxiliary roller 108 and the active roller 102 during transmission, the printing roller 107 prints patterns on the paper, and the auxiliary roller 108 assists the traction device to transmit the patternsBefore the paper passes through the active roller 102, the black blocks on the paper are sensed by the sensor 106, and the sensing signal is fed back to the controller, wherein the distance S between the black blocks and the dotted line to be cut is preset in the controller1Traction speed V of traction device1The circumference S of the driving roller 1022After the controller receives the induction signal, according to S1/V1=S2/V2Calculating the rotation speed V of the driving roller 1022And controls the rotation speed of the motor 105 to be V2During the process, the paper is continuously conveyed to the driving roller 102, and the guillotine 103 rotates according to the rotating speed V2Just turning to the lower part, cutting a dotted line on the paper, and in order to match with the guillotine 103, a driven roller 104 is arranged below the driving roller 102, so that the paper passes through between the guillotine 103 and the driven roller 104 of the driving roller 102 to straighten the paper, and the paper is conveniently cut by the guillotine 103. The rotating speed of the driving roller 102 is controlled and changed by sensing the black blocks, so that one driving roller 102 and the guillotine 103 can be suitable for paper of different specifications, the driving roller 102 and the guillotine 103 do not need to be frequently replaced, broken lines can be cut on the paper of different specifications, the production efficiency is improved, the time for replacing the cutter is reduced, and the cost is saved.
The above description is only an example of the present application and is not intended to limit the scope of the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (10)

1. A rotary press, comprising: the paper feeding device comprises a rack, a paper feeding roller, a driving roller, a traction device and a control assembly, wherein the paper feeding roller and the driving roller are fixed on the rack;
the control component controls the driving roller to rotate the guillotine to a second target position to fall the guillotine when the first target position senses paper.
2. The web press of claim 1, wherein the control assembly includes an inductor and a controller electrically connected, the inductor being fixed to the frame, the inductor being configured to sense the first target position, the controller being configured to control the power source to vary the rotational speed of the active cylinder based on feedback from the inductor to cause the guillotine to fall at the second target position.
3. The rotary printing press according to claim 1, wherein a distance S between the first target position and the second target position1Satisfies the following conditions:
S1/V1=S2/V2
wherein V1Is the traction speed of the traction means, S2Is the circumference of the driving roller, V2Is the rotation speed of the driving roller.
4. The rotary press of claim 1, wherein the active cylinder and the guillotine are removably connected.
5. The rotary press of claim 4, wherein a slot is provided on a surface of the driving cylinder, one side of the guillotine is disposed in the slot, the other side of the guillotine extends beyond the surface of the driving cylinder, and the guillotine is connected to the slot by a screw.
6. The rotary press of claim 5, wherein the guillotine includes a blade body and a cutting edge disposed on the blade body, one side of the blade body being located within the slot, the cutting edge extending beyond the surface of the drive cylinder.
7. The rotary printing press according to claim 1, wherein the frame is further provided with a driven cylinder which is located below a projection of the driving cylinder and which rolls in cooperation with the driving cylinder for nip-feeding the sheets.
8. The rotary printing press according to claim 1, wherein a plurality of printing cylinders are further provided on the frame, a plurality of the printing cylinders being arranged in parallel with the driving cylinder in the direction of traction, the printing cylinders being adapted to print a pattern on a sheet of paper, the sheet of paper being transported beneath the printing cylinders.
9. The rotary printing press according to claim 1, wherein a plurality of the sub-cylinders are further provided on the frame, a plurality of the sub-cylinders and the driving cylinder are arranged in parallel in a traction direction, and the sheet is conveyed over the sub-cylinders.
10. The rotary printing press according to claim 2, wherein the power source of the active cylinder is an electric motor.
CN202210088735.9A 2022-01-25 2022-01-25 Rotary printing machine Pending CN114425906A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210088735.9A CN114425906A (en) 2022-01-25 2022-01-25 Rotary printing machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210088735.9A CN114425906A (en) 2022-01-25 2022-01-25 Rotary printing machine

Publications (1)

Publication Number Publication Date
CN114425906A true CN114425906A (en) 2022-05-03

Family

ID=81313058

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210088735.9A Pending CN114425906A (en) 2022-01-25 2022-01-25 Rotary printing machine

Country Status (1)

Country Link
CN (1) CN114425906A (en)

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