CN115352914A - Paper smoothing mechanism and paper laying machine - Google Patents
Paper smoothing mechanism and paper laying machine Download PDFInfo
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- CN115352914A CN115352914A CN202210973787.4A CN202210973787A CN115352914A CN 115352914 A CN115352914 A CN 115352914A CN 202210973787 A CN202210973787 A CN 202210973787A CN 115352914 A CN115352914 A CN 115352914A
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- paper
- smoothing
- shaft
- stroking
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- 238000009499 grossing Methods 0.000 title claims abstract description 142
- 230000007246 mechanism Effects 0.000 title claims abstract description 43
- 230000001960 triggered effect Effects 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 13
- 230000008569 process Effects 0.000 abstract description 10
- 239000011521 glass Substances 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000006698 induction Effects 0.000 description 6
- 238000005452 bending Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 230000003031 feeding effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H5/00—Feeding articles separated from piles; Feeding articles to machines
- B65H5/06—Feeding articles separated from piles; Feeding articles to machines by rollers or balls, e.g. between rollers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H5/00—Feeding articles separated from piles; Feeding articles to machines
- B65H5/36—Article guides or smoothers, e.g. movable in operation
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Road Paving Machines (AREA)
- Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
Abstract
The invention relates to the technical field of glass production and processing, and discloses a paper smoothing mechanism and a paper laying machine. The paper smoothing mechanism comprises a paper guide plate, a paper smoothing shaft and a first driving assembly, wherein the paper smoothing shaft is arranged above the paper guide plate, a paper smoothing channel is formed between the paper smoothing shaft and the paper guide plate, and the paper smoothing assembly is arranged on the periphery of the paper smoothing shaft; the first driving assembly is used for driving the paper smoothing shaft to rotate, and the paper smoothing assembly can drive paper to move towards the direction of a paper outlet of the paper smoothing channel. The paper paving machine comprises the paper smoothing mechanism. According to the paper smoothing mechanism provided by the invention, manual paper guiding is not needed in the paper changing process, so that the labor cost is saved, and meanwhile, the working efficiency can be effectively increased by an automatic paper guiding mode.
Description
Technical Field
The invention relates to the technical field of glass production and processing, in particular to a paper smoothing mechanism and a paper paving machine.
Background
In the prior glass production, a piece of spacing paper is added between glass sheets when the glass sheets are stacked, so that the surfaces of the glass sheets are prevented from being scratched in the process of storage and transportation. Since the glass sheet is continuously fed from the lehr, the paper laying operation must be done in an on-line manner, i.e., by laying spacer paper on the glass surface during the glass movement.
The spacing paper is generally laid by a paper laying machine, and the paper laying machine changes the conveying direction of the spacing paper by a guide rod in the process of driving the spacing paper to move, so that the spacing paper fed by a paper roller bypasses the guide rod and is clamped by two driving rollers, and the spacing paper is driven to move towards the feeding direction by the rotation of the driving rollers. Traditional guide bar rotates and sets up on the paper laying machine, and this kind of design is when the paper roll needs to be changed, needs manual to walk around the guide bar with the interval paper and draw towards the direction of drive roller, leads to work efficiency low, and extravagant cost of labor.
Disclosure of Invention
In order to solve the technical problems or at least partially solve the technical problems, the invention provides a paper smoothing mechanism and a paper laying machine.
The invention provides a paper smoothing mechanism, which comprises:
a paper guide plate;
the paper smoothing shafts are arranged above the paper guide plate at intervals, so that a paper smoothing channel is formed between the paper smoothing shafts and the paper guide plate, and paper smoothing assemblies are arranged on the peripheries of the paper smoothing shafts; and
the paper smoothing device comprises a first driving assembly, wherein the first driving assembly is used for driving the paper smoothing shaft to rotate, and the paper smoothing assembly can drive paper entering the paper smoothing channel to move towards the direction of a paper outlet of the paper smoothing channel.
Optionally, the paper guide plate is provided with a paper inlet side and a paper outlet side which are opposite, the paper inlet side is bent upwards, so that a paper inlet communicated with the paper stroking channel is formed between the paper inlet side and the paper stroking shaft, and the paper outlet communicated with the paper stroking channel is formed between the paper outlet side and the paper stroking shaft.
Optionally, the bending part of the paper guide plate is arc-shaped, and the paper smoothing channel is formed between the paper smoothing shaft and the bending part of the paper guide plate.
Optionally, a paper guide shaft is rotatably arranged above the paper inlet side, and the paper guide shaft and the paper smoothing shaft are arranged in parallel.
Optionally, the paper smoothing assembly comprises a plurality of paper smoothing strips arranged on the periphery of the paper smoothing shaft at intervals along the length direction of the paper smoothing shaft, and the paper smoothing strips rotating into the paper smoothing channel can be in contact with paper entering the paper smoothing channel.
Optionally, the free end of the stroking strip is bent in a direction away from the rotation direction of the stroking shaft.
Optionally, the first driving assembly comprises a driving motor for driving the paper smoothing shaft to rotate, and an output shaft of the driving motor is connected with one end of the paper smoothing shaft through a coupler.
Optionally, the paper smoothing mechanism further comprises a positioning device and is configured to:
after paper is changed, when the paper smoothing assembly rotates to a position separated from the paper smoothing channel, the positioning device is triggered, and the first driving assembly stops working.
The invention also provides a paper laying machine which comprises the paper smoothing mechanism.
Optionally, the paper paving machine further comprises a second driving assembly for driving the paper stroking mechanism to move along the vertical direction.
Compared with the prior art, the technical scheme provided by the embodiment of the invention has the following advantages:
in the paper smoothing mechanism, paper enters the paper smoothing channel through the inlet of the paper smoothing channel, the paper smoothing shaft is driven to rotate by the first driving assembly, the paper is driven to move towards the paper outlet of the paper smoothing channel by the paper smoothing assembly, and the paper is pulled towards the driving roller arranged at the outlet side of the paper smoothing channel.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
In order to more clearly illustrate the embodiments or prior art solutions of the present invention, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural view of a paper stroking mechanism according to an embodiment of the invention;
FIG. 2 is a schematic view of a first drive assembly according to an embodiment of the present invention;
FIG. 3 is an enlarged view taken at A in FIG. 2;
fig. 4 is a sectional view of the paper stroking mechanism according to the embodiment of the invention in a working state.
Description of the reference numerals
1. A paper guide plate; 2. smoothing out the paper shaft; 21. an induction rod; 3. a paper smoothing channel; 31. a paper inlet; 32. a paper outlet; 4. a first drive assembly; 41. a drive motor; 42. mounting a plate; 43. a reinforcing bar; 44. a coupling; 5. paper; 6. a paper guide shaft; 61. a paper guide shaft seat; 7. stroking the paper strips; 8. a second drive assembly; 9. a mounting seat; 91. and a bearing.
Detailed Description
In order that the above objects, features and advantages of the present invention may be more clearly understood, a solution of the present invention will be further described below. It should be noted that the embodiments of the present invention and the features of the embodiments may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the invention may be practiced otherwise than as described herein; it is to be understood that the embodiments described in the specification are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1 to 4, a paper smoothing mechanism according to an embodiment of the present invention includes a paper guide 1, a paper smoothing shaft 2, and a first driving assembly 4.
The paper smoothing shafts 2 are arranged above the paper guide plate 1 at intervals, so that a paper smoothing channel 3 is formed between the paper smoothing shafts 2 and the paper guide plate 1, and paper smoothing assemblies are arranged on the periphery of the paper smoothing shafts 2. The first driving assembly 4 is used for driving the paper smoothing shaft 2 to rotate, and the paper smoothing assembly can drive the paper 5 entering the paper smoothing channel 3 to move towards the paper outlet 32 of the paper smoothing channel 3. Under the non-paper changing state, the first driving assembly 4 drives the paper smoothing assembly to rotate to the position where the paper smoothing assembly is separated from the paper smoothing channel 3, and normal paper supply of the paper paving machine is prevented from being influenced. Further optimally, the paper smoothing shaft 2 can rotate under the driving of the paper 5 in the process of conveying the paper 5 through the paper paving machine (the first driving assembly 4 does not lock the paper smoothing shaft 2), and the feeding effect of the paper 5 is ensured. When the paper smoothing mechanism is used for spacing paper, the paper 5 is the spacing paper.
In the paper changing process of the paper smoothing mechanism, paper 5 enters the paper smoothing channel 3 through the inlet of the paper smoothing channel 3, the first driving assembly 4 drives the paper smoothing shaft 2 to rotate, the paper smoothing assembly drives the paper 5 to move towards the direction of the paper outlet 32 of the paper smoothing channel 3, and the paper 5 is pulled towards the direction of the driving roller arranged at the outlet side of the paper smoothing channel 3.
As shown in fig. 1 and 2, the paper smoothing mechanism further comprises two mounting seats 9 arranged at intervals, two ends of the paper guide plate 1 are respectively connected with the two mounting seats 9, the paper guide plate 1 is a strip-shaped plate, and the extension direction of the paper smoothing shaft 2 is consistent with that of the paper guide plate 1, so that the space occupation is reduced. The two ends of the paper smoothing shaft 2 are connected with the two mounting seats 9 through bearings 91 respectively, so that the paper smoothing shaft 2 is rotatably arranged on the mounting seats 9.
As shown in fig. 1, 2 and 3, the first driving assembly 4 includes a driving motor 41 for driving the paper smoothing shaft 2 to rotate, a base of the driving motor 41 is installed at a corresponding position of a frame body of the paper paving machine, an output shaft of the driving motor 41 is connected with one end of the paper smoothing shaft 2 through a coupling 44, and the driving motor 41 drives the paper smoothing shaft 2 to rotate. Specifically, as shown in fig. 3, the installation direction of the driving motor 41 is perpendicular to the extension direction of the paper smoothing shaft 2, and at this time, a reduction box or other conversion box needs to be connected to an output shaft of the driving motor 41, so as to convert the output direction of the driving motor 41 to be consistent with the extension direction of the paper smoothing shaft 2, so that the driving motor 41 can drive the paper smoothing shaft 2 to rotate. Here, the arrangement of the reduction box and the conversion box and the principle of changing the output direction of the driving motor 41 are conventional technologies, and therefore, they are not described herein too much. The casing of the driving motor 41 is provided with a mounting plate 42, and the mounting plate 42 is connected with the mounting base 9 through a plurality of reinforcing rods 43, so as to increase the stability of the driving motor 41.
As shown in fig. 4, the paper guide 1 has a paper inlet side and a paper outlet side opposite to each other, and the paper inlet side is bent upward so that a paper inlet 31 communicating with the paper stroking channel 3 is formed between the paper inlet side and the stroking shaft 2, and a paper outlet 32 communicating with the paper stroking channel 3 is formed between the paper outlet side and the stroking shaft 2. The paper inlet side of the paper guide plate 1 is inclined relative to the vertical direction towards the direction far away from the paper smoothing shaft 2, so that the end part of the falling paper 5 can smoothly enter the paper smoothing channel 3 and can be driven by the paper smoothing component to be led out from the paper outlet 32.
Specifically, the bending part of the paper guide plate 1 is arc-shaped to ensure the structural stability of the paper guide plate 1. A paper smoothing channel 3 is formed between the paper smoothing shaft 2 and the bent part of the paper guide plate 1, so that paper 5 can conveniently enter the paper smoothing channel 3, and meanwhile, the paper smoothing component can conveniently drive the paper 5 entering the paper smoothing channel 3 to move.
Further preferably, as shown in fig. 1, 2 and 4, a paper guide shaft 6 is rotatably provided above the paper inlet side of the paper guide plate 1, and the paper guide shaft 6 is arranged in parallel with the paper smoothing shaft 2. Specifically, as shown in fig. 1 and 2, both ends of the paper guide shaft 6 are mounted on the two mounting seats 9 through paper guide shaft seats 61, respectively. At least part of the paper guide shaft 6 extends out of the paper feeding side of the paper guide plate 1 towards the paper smoothing shaft 2, after the paper roll is replaced, the paper 5 is in a to-be-operated state, at the moment, the paper supporting mechanism of the paper paving machine supports the paper 5 above the paper smoothing mechanism to play a role in tensioning the paper 5, at the moment, the paper 5 moves towards the direction far away from the paper smoothing shaft 2 until the paper 5 is tightly attached to the periphery of the paper guide shaft 6, and then the paper guide shaft 6 plays a role in guiding the conveying of the paper 5 in the working process.
As shown in fig. 1 and 2, the paper stroking assembly includes a plurality of paper stroking strips 7 arranged at intervals along the length direction of the paper stroking shaft 2 on the periphery of the paper stroking shaft 2, that is, the plurality of paper stroking strips 7 are arranged in a row. The strip of paper 7 rotating into the paper stripping channel 3 can contact with the paper 5 entering the paper stripping channel 3, and then the paper 5 can be driven to move towards the paper outlet 32, so that the paper stripping effect is achieved. Preferably, the free end of the strip of paper 7 is bent in a direction away from the rotation direction of the paper smoothing shaft 2, that is, the free end of the strip of paper 7 is bent in a direction away from the feeding direction of the paper 5, so that the bending of the strip of paper 7 is in contact with the paper 5, and the paper smoothing effect is ensured. Further optimally, the paper strip 7 is an elastic round strip, so that the paper is pushed up through the elastic round strip, and the paper 5 is prevented from being damaged in the contact process.
The paper smoothing mechanism further comprises a positioning device, after paper is changed, when the paper smoothing component rotates to a position where the paper smoothing component is separated from the paper smoothing channel 3, the positioning device is triggered, and the first driving component 4 stops working. Specifically, the positioning device comprises an induction rod 21 arranged at the end part of the paper stroking shaft 2 and an induction switch matched with the induction rod 21. After paper is changed, the induction rod 21 rotates to a set position (the paper stroking component rotates to a position separated from the paper stroking channel 3), the induction switch is triggered to send a work stopping signal, the controller controls the first driving component 4 to stop working based on the work stopping signal, the paper stroking component rotates to the position separated from the paper stroking channel 3, and normal conveying of paper 5 is prevented from being influenced by the paper stroking component (paper stroking strips 7).
The invention also provides a paper laying machine which comprises the paper smoothing mechanism, and the paper smoothing mechanism comprises all the technical characteristics of the paper smoothing mechanism, so that the paper laying machine is not described in detail. Further optimally, the paper paving machine further comprises a second driving assembly 8 used for driving the paper smoothing mechanism to move along the vertical direction, the second driving assembly 8 is arranged on a frame body of the paper paving machine, the second driving assembly 8 can be an electric push rod, an air cylinder or a hydraulic cylinder and the like, and specifically, an output shaft of the second driving assembly 8 is connected with a mounting seat 9 of the paper smoothing mechanism. Under the design mode, when the paper roll needs to be replaced, the paper smoothing mechanism can be driven by the second driving assembly 8 to move upwards, the paper outlet 32 of the paper smoothing mechanism is 1-3mm higher than the sliding plane of the subsequent structure, and the drawn paper 5 can slide to the surface of the sliding plane.
According to the paper paving machine, in a normal state, the paper smoothing mechanism is located at a falling position, the paper smoothing strips 7 rotate to a position (above the paper smoothing shaft 2) separated from the paper smoothing channel 3, and the paper smoothing shaft 2 and the paper guide shaft 6 play a role in guiding the movement of paper 5. When a paper roll needs to be replaced, the second driving assembly 8 drives the paper smoothing mechanism to rise, a paper outlet 32 of the paper smoothing mechanism is made to be 1-3mm higher than a sliding plane of a subsequent structure, the paper 5 falls into the paper inlet 31 and then contacts the paper guide plate 1 and slides to the paper smoothing channel 3, the driving motor 41 is started, the paper smoothing shaft 2 and the paper smoothing strips 7 arranged on the paper smoothing shaft 2 are driven to rotate through the driving motor 41, the paper 5 is continuously smoothed out through the paper smoothing strips 7, and the paper 5 is led out through the paper outlet 32.
It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another identical element in a process, method, article, or apparatus that comprises the element.
The foregoing are merely exemplary embodiments of the present invention, which enable those skilled in the art to understand or practice the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The utility model provides a smooth out with fingers paper mechanism which characterized in that smooth out with fingers paper mechanism and includes:
a paper guide plate (1);
the paper smoothing shaft (2) is arranged above the paper guide plate (1) at intervals, so that a paper smoothing channel (3) is formed between the paper smoothing shaft (2) and the paper guide plate (1), and a paper smoothing assembly is arranged on the periphery of the paper smoothing shaft (2); and
the paper smoothing device comprises a first driving assembly (4), wherein the first driving assembly (4) is used for driving the paper smoothing shaft (2) to rotate, and the paper smoothing assembly can drive paper (5) entering the paper smoothing channel (3) to move towards the direction of a paper outlet (32) of the paper smoothing channel (3).
2. The paper stroking mechanism according to claim 1, characterized in that the paper guide plate (1) is provided with a paper inlet side and a paper outlet side which are opposite, the paper inlet side is bent upwards, so that a paper inlet (31) communicated with the stroking channel (3) is formed between the paper inlet side and the stroking shaft (2), and a paper outlet (32) communicated with the stroking channel (3) is formed between the paper outlet side and the stroking shaft (2).
3. The paper smoothing mechanism according to claim 2, characterized in that the bend of the paper guide plate (1) is arc-shaped, and the paper smoothing channel (3) is formed between the paper smoothing shaft (2) and the bend of the paper guide plate (1).
4. The paper smoothing mechanism according to claim 1, characterized in that a paper guide shaft (6) is rotatably arranged above the paper feeding side, and the paper guide shaft (6) and the paper smoothing shaft (2) are arranged in parallel.
5. The paper stroking mechanism according to claim 1, characterized in that the stroking assembly comprises a plurality of stroking strips (7) which are arranged at intervals along the length direction of the stroking shaft (2) at the periphery of the stroking shaft (2), and the stroking strips (7) which are rotated into the stroking channel (3) can be contacted with paper (5) which enters into the stroking channel (3).
6. A paper stroking mechanism according to claim 5, characterized in that the free end of the strip of paper (7) is curved in the direction of rotation away from the shaft (2).
7. The paper stroking mechanism according to claim 1, characterized in that the first driving assembly (4) comprises a driving motor (41) for driving the paper stroking shaft (2) to rotate, and an output shaft of the driving motor (41) is connected with one end of the paper stroking shaft (2) through a coupling (44).
8. The stroking mechanism of any of claims 1 to 7, further comprising a positioning device configured to:
after the paper is changed, when the paper smoothing component rotates to a position separated from the paper smoothing channel (3), the positioning device is triggered, and the first driving component (4) stops working.
9. A paper laying machine characterized in that it comprises a paper stroking mechanism as claimed in any one of claims 1 to 8.
10. A machine according to claim 9, characterized in that it further comprises a second drive assembly (8) for moving said smoothing mechanism in a vertical direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210973787.4A CN115352914B (en) | 2022-08-15 | 2022-08-15 | Paper stroking mechanism and paper spreading machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210973787.4A CN115352914B (en) | 2022-08-15 | 2022-08-15 | Paper stroking mechanism and paper spreading machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115352914A true CN115352914A (en) | 2022-11-18 |
| CN115352914B CN115352914B (en) | 2024-10-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210973787.4A Active CN115352914B (en) | 2022-08-15 | 2022-08-15 | Paper stroking mechanism and paper spreading machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115352914B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1266850A2 (en) * | 2001-06-15 | 2002-12-18 | MAN Roland Druckmaschinen AG | Feed table |
| JP2010260728A (en) * | 2005-09-13 | 2010-11-18 | Ricoh Co Ltd | Sheet conveying apparatus, image reading apparatus and image forming apparatus |
| CN206203512U (en) * | 2016-10-11 | 2017-05-31 | 浙江金龙纸业有限公司 | A kind of continuous bookbinding paper guiding device |
| CN209554407U (en) * | 2019-01-30 | 2019-10-29 | 温州市东昌印务有限公司 | A kind of new type auto printing machine |
| CN210795126U (en) * | 2019-08-26 | 2020-06-19 | 陕西金叶科教集团股份有限公司 | Adjustable gravure press paper pass route system |
| CN214988945U (en) * | 2021-06-05 | 2021-12-03 | 大庆市安庆彩印有限公司 | Paper feeding device for printing cultural media books and periodicals |
-
2022
- 2022-08-15 CN CN202210973787.4A patent/CN115352914B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1266850A2 (en) * | 2001-06-15 | 2002-12-18 | MAN Roland Druckmaschinen AG | Feed table |
| JP2010260728A (en) * | 2005-09-13 | 2010-11-18 | Ricoh Co Ltd | Sheet conveying apparatus, image reading apparatus and image forming apparatus |
| CN206203512U (en) * | 2016-10-11 | 2017-05-31 | 浙江金龙纸业有限公司 | A kind of continuous bookbinding paper guiding device |
| CN209554407U (en) * | 2019-01-30 | 2019-10-29 | 温州市东昌印务有限公司 | A kind of new type auto printing machine |
| CN210795126U (en) * | 2019-08-26 | 2020-06-19 | 陕西金叶科教集团股份有限公司 | Adjustable gravure press paper pass route system |
| CN214988945U (en) * | 2021-06-05 | 2021-12-03 | 大庆市安庆彩印有限公司 | Paper feeding device for printing cultural media books and periodicals |
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| Publication number | Publication date |
|---|---|
| CN115352914B (en) | 2024-10-22 |
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