CN215970597U - Off-press paper path holding device - Google Patents
Off-press paper path holding device Download PDFInfo
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- CN215970597U CN215970597U CN202023123237.9U CN202023123237U CN215970597U CN 215970597 U CN215970597 U CN 215970597U CN 202023123237 U CN202023123237 U CN 202023123237U CN 215970597 U CN215970597 U CN 215970597U
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- paper
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- supporting rod
- sheet
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- 239000000758 substrate Substances 0.000 claims abstract description 15
- 239000000463 material Substances 0.000 claims abstract description 11
- 238000000926 separation method Methods 0.000 claims abstract description 8
- 238000004049 embossing Methods 0.000 claims description 7
- 230000009471 action Effects 0.000 claims description 6
- 230000033001 locomotion Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 8
- 238000007639 printing Methods 0.000 abstract description 8
- 230000008859 change Effects 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 7
- 238000006073 displacement reaction Methods 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007646 gravure printing Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Abstract
The utility model provides a separation paper path holding device, comprising: and the paper supporting rods are arranged at the paper conveying roller for conveying the paper substrate in parallel and can move in parallel with the paper conveying roller. The off-press paper path retaining device is simple in structure, and the change of the tension of the base material caused by the fact that the press-printing rubber roller is away from the press-printing process can be compensated only by adding the paper supporting rod capable of supporting the base material and the power device driving the paper supporting rod to act, so that the loss of the base material generated by re-capture and overprinting due to the displacement of the color code is avoided.
Description
Technical Field
The utility model relates to the field of gravure printing, in particular to an off-press paper path holding device.
Background
In the printing process of the existing gravure press, if a fault occurs, the impression rubber roll is required to be separated from the press for treatment. After the impression rubber roller is separated from the impression, the length of a paper path of the whole machine can be changed, so that the position of a printed color code moves randomly; when the imprinting rubber roller is pressed again after the fault is eliminated, the color code position cannot be predicted, and the color code position is required to be captured and overprinted again, so that a large amount of printing base materials are wasted.
The structure of having adopted double-stroke impression cylinder on present most gravure press, this structure is on ordinary impression cylinder's basis, increase one section 10 mm's individual stroke, when needing to separate the pressure and solve relevant trouble, the optional only independent stroke of separating the pressure 10mm, the structure of this kind of double-stroke impression cylinder, the change of complete machine paper path length when can reducing the pressure to a certain extent, reduce the substrate loss of separating the pressure reunion pressure relatively, nevertheless experience the process of reunion pressure after the pressure of separating, great change still can take place for the position of color code, the loss of substrate can't be avoided.
Disclosure of Invention
The utility model aims to provide a separation-pressing paper path retaining device which is used for avoiding color code position change caused by combination pressing after separation pressing of an embossing rubber roller. The object of the present invention is achieved by the following technical means.
The utility model provides a separation paper path holding device, comprising: and the paper supporting rod is arranged at the paper feeding roller in parallel with the paper feeding roller for conveying the paper substrate and can move in parallel with the paper feeding roller.
Preferably, the separation-pressed paper path holding device of the present invention further includes: a power assembly; the power component is connected with the paper supporting rod and used for driving the paper supporting rod to move.
Preferably, the power assembly comprises a stay rod cylinder, the stay rod cylinder is arranged on the machine frames at the two ends of the paper conveying roller, and a cylinder rod of the stay rod cylinder is hinged with the paper stay rod.
Preferably, the power assembly further comprises a connecting rod, and two ends of the connecting rod are respectively hinged with the cylinder rod and the paper supporting rod of the supporting rod cylinder.
Preferably, the power assembly comprises a motor, and an output end of the motor is connected with the paper supporting rod to provide power for movement of the paper supporting rod.
Preferably, the power assembly comprises a screw rod, and the screw rod is arranged at the output end of the motor and connected with the paper supporting rod, so that the paper supporting rod moves along the direction of the screw rod.
Preferably, the power assembly comprises an encoder, and the encoder is arranged on the motor and is matched with the motor to control the movement of the paper supporting rod.
Preferably, the power assemblies are two in total and are respectively arranged on the machine frames at two ends of the paper conveying roller.
Preferably, the length of the stay rod is not less than the length of the feed roller for conveying the paper substrate.
The utility model also provides a gravure press, which comprises an embossing rubber roll, an embossing cylinder and the off-press paper path holding device;
the stamping cylinder is connected with the stamping rubber roller to drive the stamping rubber roller to perform the actions of pressure separation and pressure combination, and the stamping cylinder is a double-stroke stamping cylinder which has an independent stroke of 10 mm.
The off-press paper path holding device has the advantages that: simple structure only needs to increase and can compensate the impression rubber roll from the substrate tension change that the pressfitting pressed in-process and led to through the power device who props up the vaulting pole of substrate and drive this vaulting pole action to avoid the color code displacement and catch again and the substrate loss that the overprinting produced.
Drawings
The disclosure of the present invention will become more readily understood with reference to the accompanying drawings. As is readily understood by those skilled in the art: these drawings are only for illustrating the technical solutions of the present invention and are not intended to limit the scope of the present invention. In the figure:
FIG. 1 is a schematic view showing the structure of an off-platen paper path retaining apparatus of the present invention;
FIG. 2 is a schematic view showing the mounting structure of the off-platen paper path retaining apparatus of the present invention;
fig. 3 is a schematic view showing the operation of the off-platen paper path holding apparatus of the present invention.
Detailed Description
Fig. 1-3 and the following description depict alternative embodiments of the utility model to teach those skilled in the art how to make and use the utility model. Some conventional aspects have been simplified or omitted for the purpose of teaching the present invention. Those skilled in the art will appreciate that variations or substitutions from these embodiments will fall within the scope of the utility model. Those skilled in the art will appreciate that the features described below can be combined in various ways to form multiple variations of the utility model. Thus, the present invention is not limited to the following alternative embodiments, but is only limited by the claims and their equivalents.
Example 1
In this embodiment, as a preferred embodiment, the off-nip paper path holding apparatus of the present invention is provided with a power unit that uses a cylinder transmission. Fig. 1 is a schematic structural view of the paper off-press path holding device according to the present invention in this embodiment, in which 1 is a stay cylinder, 2 is a frame at both ends of a paper feed roller, 3 is a link, and 5 is a stay. The paper supporting rod 5 is arranged at the paper feeding roller in parallel with the paper feeding roller for conveying the paper substrate and can move in parallel with the paper feeding roller; the paper supporting rod 5 is slightly longer than the paper feeding roller, so that two ends of the paper supporting rod 5 are respectively arranged on the machine frame 2 at two ends of the paper feeding roller. The stay rod cylinder 1 is also arranged on the frame 2 at the two ends of the paper conveying roller. In the present embodiment, the cylinder rod of the stay cylinder 1 is not directly connected to the stay rod 5, but is additionally connected to the stay rod 5 through the connecting rod 3 to drive the stay rod 5 to move. Two ends of the connecting rod 3 are respectively hinged with a cylinder rod of the stay rod cylinder 1 and the stay paper rod 5.
As shown in fig. 2, a schematic view of an installation structure of the off-press paper path holding device of the present invention, a is an area where the structure portion in fig. 1 is installed. Wherein, power component mainly includes that vaulting pole cylinder 1 and connecting rod 3 are provided with two sets in this embodiment, set up respectively in the frame 2 at defeated paper roll both ends to be connected with vaulting pole cylinder 1 both ends respectively, drive vaulting pole cylinder 1 both ends synchronous motion.
After the off-press paper path holding device is used in the existing gravure press, as shown in fig. 3, 6 is a printing plate, 7 is an impression rubber roll, 8 is a paper substrate conveyed by a paper conveying roll, and 9 is a track of the paper substrate after being acted by a paper supporting rod 5. The impression rubber roll 7 is connected with an impression cylinder and is driven by the impression cylinder to perform the separation and pressing and combination actions, and the impression cylinder is a double-stroke impression cylinder and has a single stroke of 10 mm.
In the process of releasing the impression rubber roller 7, the paper conveying roller for conveying the paper base material is kept static, and the paper supporting rod 5 is ejected out under the pushing of the supporting rod cylinder 1 and the transmission of the connecting rod 3 and is pushed to the surface of the paper base material 8. At the moment, the impression rubber roller 7 starts to be pressed to 10mm under the action of the impression cylinder, namely the distance from the printing plate 6 reaches 10mm, and the paper substrate 8 is jacked to the position of the track 9 under the action of the paper supporting rod 5. The moving distance and the corresponding fixed position of the paper supporting rod 5 are preset by technicians according to different working conditions so as to compensate the tension of the paper substrate 8 and the change of the paper path length caused by the separation and pressing of the embossing rubber roller 7.
In the pressing process of the impression rubber roller 7, the paper conveying roller for conveying the paper base material is kept static, the impression rubber roller 7 is pressed downwards, and the paper base material 8 is pressed downwards to the surface of the printing plate 6. The paper supporting rod 5 is retracted under the pulling of the supporting rod cylinder 1 and the transmission of the connecting rod 3, the paper base material 8 is returned to the original position of the paper base material 8 before the pressing from the position of the track 9, and the pressing process is completed.
Under the effect of vaulting pole 5, the process is pressed and closes to the departure, and printing position paper way length no longer changes, and the color mark position can not consequently take place the displacement yet, closes the back of pressing, and the overprint color mark can get into in the electric eye fast, resumes the overprint fast.
Example 2
In this embodiment, the power assembly mainly includes a motor and a screw rod, the screw rod is disposed at an output end of the motor, and the screw rod is connected with the paper supporting rod 5, so that the paper supporting rod 5 moves along a direction of the screw rod, and the motor provides power for the purpose. In this embodiment, the motor is selected to be small-size servo motor, and other drive mechanism can be added as required to the technical staff, realizes that the vaulting pole 5 is on a parallel with the paper feed roller and removes under the drive of motor. The rest of this embodiment is the same as embodiment 1, and will not be described herein.
Example 3
In this embodiment, the power assembly includes an encoder disposed on the motor, cooperating with the motor to control the movement of the prop rod 5. The rest of this embodiment is the same as embodiment 2, and will not be described herein.
Example 4
In this embodiment, the power assembly includes a cylinder that is directly connected to the spreader bar 5 without the use of a hinge. The rest of this embodiment is the same as embodiment 2, and will not be described herein.
The paper path holding device can be provided with no power component, and technicians can manually adjust the position of the paper supporting rod 5 to realize the same function of compensating the tension of the paper substrate 8 and the change of the length of the paper path caused by the separation of the embossing rubber roller 7.
It will of course be realised that whilst the foregoing has been given by way of illustrative example of this invention, all such and other modifications and variations thereto as would be apparent to persons skilled in the art are deemed to fall within the broad scope and ambit of this invention as is herein set forth. Therefore, while this invention has been described with reference to preferred embodiments, it is not intended that the novel apparatus be limited thereby, but on the contrary, it is intended to cover various modifications and equivalent arrangements included within the broad scope of the above disclosure and the appended claims.
Claims (6)
1. An off-platen paper path retaining apparatus comprising:
the paper supporting rod (5) is arranged at a paper feeding roller for conveying paper base materials in parallel, and can move in parallel with the paper feeding roller;
a power assembly; the power assembly is connected with the paper supporting rod (5) and is used for driving the paper supporting rod (5) to move;
the power assembly comprises a support rod cylinder (1), the support rod cylinder (1) is arranged on the machine frame (2) at two ends of the paper conveying roller, and a cylinder rod of the support rod cylinder (1) is hinged with the paper support rod (5);
the power assembly further comprises a connecting rod (3), and two ends of the connecting rod (3) are respectively hinged with a cylinder rod of the stay rod cylinder (1) and the stay rod (5);
the power assembly comprises a motor, the output end of the motor is connected with the paper supporting rod (5) and provides power for the movement of the paper supporting rod (5).
2. The sheet off-press path retaining device according to claim 1, wherein the power assembly comprises a lead screw, the lead screw is arranged at the output end of the motor and connected with the sheet supporting rod (5) so that the sheet supporting rod (5) moves along the direction of the lead screw.
3. The apparatus as claimed in claim 1, wherein the power assembly includes an encoder disposed on the motor and cooperating with the motor to control the movement of the supporting rod (5).
4. The sheet off-nip holding apparatus according to claim 1, wherein the power units are provided in total two, respectively, on the frames (2) at both ends of the sheet feeding roller.
5. The sheet off-nip holding apparatus according to claim 1, wherein the length of the stay (5) is not smaller than that of the sheet feeding roller for feeding the sheet substrate.
6. A gravure press, comprising an embossing rubber roll, an embossing cylinder, and the off-press paper path holding device of any one of claims 1 to 5;
the impression cylinder is connected with the impression rubber roll and is used for driving the impression rubber roll to perform the actions of pressure separation and pressure combination, and the impression cylinder is a double-stroke impression cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023123237.9U CN215970597U (en) | 2020-12-22 | 2020-12-22 | Off-press paper path holding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023123237.9U CN215970597U (en) | 2020-12-22 | 2020-12-22 | Off-press paper path holding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215970597U true CN215970597U (en) | 2022-03-08 |
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ID=80567223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023123237.9U Active CN215970597U (en) | 2020-12-22 | 2020-12-22 | Off-press paper path holding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215970597U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114714753A (en) * | 2020-12-22 | 2022-07-08 | 天津长荣科技集团股份有限公司 | Off-press paper path holding device |
-
2020
- 2020-12-22 CN CN202023123237.9U patent/CN215970597U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114714753A (en) * | 2020-12-22 | 2022-07-08 | 天津长荣科技集团股份有限公司 | Off-press paper path holding device |
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