CN111391006B - Die-cutting full-waste-cleaning paper pressing mechanism - Google Patents
Die-cutting full-waste-cleaning paper pressing mechanism Download PDFInfo
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- CN111391006B CN111391006B CN202010237590.5A CN202010237590A CN111391006B CN 111391006 B CN111391006 B CN 111391006B CN 202010237590 A CN202010237590 A CN 202010237590A CN 111391006 B CN111391006 B CN 111391006B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/01—Means for holding or positioning work
- B26D7/02—Means for holding or positioning work with clamping means
- B26D7/04—Means for holding or positioning work with clamping means providing adjustable clamping pressure
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Abstract
The invention provides a die-cutting full-waste-cleaning paper pressing mechanism, which comprises: the paper pressing devices are fixed at the lower ends of the paper pressing regulators; the paper weight comprises an anti-skid rubber block and a plurality of paper fixing thimbles; the paper pressing regulator comprises a supporting rod and a supporting sleeve rod, the supporting rod can slide to penetrate through the supporting sleeve rod, a spring is arranged at the lower end of the supporting sleeve rod and sleeved on the supporting rod, a paper pressing mechanism pressure regulating nut is arranged at the upper end of the supporting rod, a limiting ring is respectively arranged at the lower end of the supporting rod and the lower surface of the supporting sleeve rod, the spring is abutted against the limiting ring, and a paper fixing thimble is fixedly connected with the lower end of the supporting rod. The invention is a single-point type paper pressing structure, when the problem that the paper in the middle part of the paper edge of the waste product cannot be pressed is encountered, the problem that the paper cannot be pressed can be solved by respectively adjusting the paper presses at the problem parts; the paper weight is not easy to damage, and even if the paper weight is damaged, only the damaged paper weight needs to be replaced, so that the cost is reduced.
Description
Technical Field
The invention relates to the field of package printing, in particular to a paper pressing mechanism in a paper blank separating device of a die cutting full waste cleaning process.
Background
The die cutting full waste clearing process in the post-printing processing procedure during printing mainly comprises three parts, namely a die pressing part, a waste clearing device and a paper blank separating device, wherein the paper blank separating device mainly comprises an upper paper blank separating device and a lower paper blank separating device, a paper pressing device for fixing waste materials is arranged in the upper paper blank separating device, and the device is mainly used for fixing the waste materials, so that a product can be smoothly separated from a paper edge and enters a lower paper blank separating frame.
At present, the paper pressing device used on the die cutting machine is of an integral structure, as shown in fig. 1, the structure mainly comprises: paper weight billet 6 and non-slip adhesive tape 7, set up 2 paper pressing regulators on paper weight billet 6 both ends, this paper pressing regulator includes paper weight pressure adjusting nut 1, the bracing piece cover 2, fixed screw 3, bracing piece 4, paper weight hasp 5, spring 9, paper pressing device passes through fixed screw 3 and divides box ware plank 8 fixed connection, spring 9 overlaps on bracing piece 4 of bracing piece cover 2 below, bracing piece 4 indicates ware billet 6 and non-slip adhesive tape 7 fixed connection through paper weight hasp 5 with pressing, it indicates ware billet 6 and non-slip adhesive tape 7 to be connected as a whole with the suppression regulator like this to press, this paper pressing device has following problem:
1. the adjustment range is limited: the pressure regulating part of the paper pressing device is only provided with paper pressing regulators at two ends, when the die cutting is carried out and waste paper is completely removed, the middle part of the waste paper edge of the product is deformed, deviated and upwarped, the waste paper edge of the product cannot be fixed through the pressure regulating, and therefore the production stability is ensured only by reducing the production speed when the situation occurs.
2. The steel bar of the paper weight is easy to break: the connection of paper weight billet 6 and bracing piece 4 is by paper weight hasp 5, and its equipment is trompil on paper weight billet 6, and the impact paper weight hasp 5 that receives the push down when the paper weight billet 6 during operation can be to the continuous impact in paper weight billet trompil position, uses paper weight billet 6 trompil position constantly wearing and tearing often, and wearing and tearing will make the paper weight billet fracture and cause the potential safety hazard and influence the production progress when to a certain extent.
3. The fixation of the paper weight is not good: usually, a certain number of connection points are arranged on a die-cutting product in order to guarantee the production speed, the bottom structure of the existing paper pressing device only fixes paper by the anti-slip rubber strip 7, the fixing acting force is limited, and when the situation occurs, the paper edge is brought into the box separating device by the connection points to cause the problem of halt.
Disclosure of Invention
In view of the above disadvantages of the prior art, an object of the present invention is to provide a die-cutting full waste-cleaning platen mechanism, which is used to solve the problems in the prior art that the adjustment of the pressure position of the die-cutting full waste-cleaning platen is limited, the platen steel bar in the platen is easy to break, and the fixing force for the paper is limited.
In order to achieve the above and other related objects, the present invention provides a die-cutting full waste-cleaning paper pressing mechanism, which at least comprises:
the paper pressing devices are respectively fixed at the lower ends of the paper pressing regulators;
the paper pressing device comprises an anti-skid rubber block and a plurality of paper fixing thimbles, and the paper fixing thimbles penetrate through the anti-skid rubber block and are fixedly connected with the paper pressing regulator;
the paper pressing regulator comprises a supporting rod and a supporting sleeve rod, the supporting rod penetrates through the supporting sleeve rod in a sliding mode, a spring is arranged at the lower end of the supporting sleeve rod and sleeved on the supporting rod, a paper pressing mechanism pressure regulating nut is arranged at the upper end of the supporting rod, a limiting ring is arranged on the lower surface of the supporting sleeve rod, a limiting piece is arranged at the lower end of the supporting rod, the upper end and the lower end of the spring are respectively abutted against the limiting ring and the limiting piece, and the paper fixing thimble is fixedly connected with the lower end of the supporting rod;
the supporting sleeve rod is fixedly connected with a box divider wood plate on the die cutting machine through a fixing screw.
Optionally, the surface size of the lower end of the support rod is the same as that of the anti-skid rubber block, and 4-8 paper fixing thimbles penetrate through the anti-skid rubber block and are fixedly connected with the paper pressing regulator.
Optionally, the anti-slip rubber block is a rubber block with a hardness of 30 shore to 50 shore, and the paper fixing thimble is made of steel with a hardness of 8.8.
Optionally, the length of the anti-slip rubber block is 0.5mm to 0.8mm longer than that of the paper fixing thimble.
Further, the length of the paper fixing thimble is between 2mm and 4 mm.
Optionally, the fixing screw is an inner hexagonal screw with a hardness of 8.8 grade.
Optionally, the support rod is made of steel with the hardness of 8.8 grade, and the length of the support rod is 35 cm-40 cm.
Optionally, the spring has a diameter of 7cm, a length of 30cm and a wire diameter of 1 mm.
Optionally, the thickness of the box divider wood plate is 18 mm.
As described above, in the die-cutting full waste-cleaning paper pressing mechanism of the invention, in the die-cutting process, the anti-slip rubber block presses the paper under the elastic force of the spring, the force-bearing mode is a point force-bearing mode, when the anti-slip rubber block is impacted in the operation process of the die-cutting machine, the anti-slip rubber block can drive the supporting rod to compress the spring, at the moment, the paper fixing ejector pin can press the paper to fix the paper, and simultaneously, under the rebound effect of the anti-slip rubber block, the paper can be separated from the paper fixing ejector pin, so that the paper can be always kept at a firm fixed position and cannot be inserted into the paper fixing ejector pin upwards in the operation process of the die-cutting machine. Compared with the mode that the paper pressing plate of the die-cutting full-waste-cleaning paper pressing device in the prior art is subjected to surface stress, the die-cutting full-waste-cleaning paper pressing mechanism is of a single-point structure, so that the paper pressing position of the paper pressing device can be set according to different paper and makeup, and meanwhile, independent pressure regulation can be performed on each paper pressing position to adapt to special requirements of products. When the problem that paper cannot be compressed due to deformation, deviation or upwarping and the like of the middle part of the paper edge of the waste product is encountered during die cutting and full waste removal of the box, the problem that the paper cannot be compressed can be solved by respectively adjusting the paper presses at the problem parts. Through setting up a plurality of paperweights, reduced the decurrent impact force of during operation to the wearing and tearing of every paperweight, the paperweight is not fragile, even damaged, also only needs to change the paperweight of damage, does not need whole change all paperweights, the cost is reduced.
Drawings
Fig. 1 shows a schematic structure diagram of a die-cutting full waste paper pressing device in the prior art.
Fig. 2 is a schematic structural diagram of the die-cutting full waste-cleaning paper pressing mechanism of the invention.
Fig. 3 shows a cross-sectional view at a in fig. 2.
Fig. 4 is a top view of fig. 2 at a.
FIG. 5 shows a schematic diagram of the die-cutting full-waste-cleaning production on a 12-linkage cigarette label hard box type makeup product by adopting the die-cutting full-waste-cleaning paper pressing mechanism.
Fig. 6 is an enlarged schematic view of the point location arrangement of the paper pressing device at the position B in fig. 5 for realizing the die-cutting full-waste-cleaning production on the 12-joint cigarette label hard box type makeup product by adopting the die-cutting full-waste-cleaning paper pressing mechanism.
Description of the element reference numerals
Pressure regulating nut for paper pressing device
2 support rod sleeve
3 set screw
4 support rod
5 paper weight lock catch
6 paper weight billet
7 anti-slip rubber strip
8 divide box ware plank
9 spring
10 paper weight
11 anti-skid rubber block
12 paper fixing thimble
13 support rod
14 support sleeve rod
15 spring
16 paper pressing mechanism pressure adjusting nut
17 set screw
18 divide box ware plank
19 stop collar
20 spacing piece
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention.
Please refer to fig. 1 to 6. It should be noted that the drawings provided in the present embodiment are only for illustrating the basic idea of the present invention, and the drawings only show the components related to the present invention rather than being drawn according to the number, shape and size of the components in actual implementation, and the type, quantity and proportion of each component in actual implementation may be changed arbitrarily, and the layout of the components may be more complicated.
As shown in fig. 2 to 4, the present invention provides a die-cutting full waste-cleaning paper pressing mechanism, which at least comprises:
the paper pressing devices are respectively fixed at the lower ends of the paper pressing regulators;
the paper pressing device comprises an anti-skid rubber block 11 and a plurality of paper fixing thimbles 12, and the paper fixing thimbles 12 penetrate through the anti-skid rubber block 11 and are fixedly connected with the paper pressing regulator;
the paper pressing regulator comprises a supporting rod 13 and a supporting sleeve rod 14, the supporting rod 13 can slide to penetrate through the supporting sleeve rod 14, a spring 15 is arranged at the lower end of the supporting sleeve rod 14, the spring 15 is sleeved on the supporting rod 13, a paper pressing mechanism pressure regulating nut 16 is arranged at the upper end of the supporting rod 13, a limiting ring 19 is arranged on the lower surface of the supporting sleeve rod 14, the supporting rod 13 can slide to penetrate through the limiting ring 19, a limiting piece 20 is arranged at the lower end of the supporting rod 13, the upper end and the lower end of the spring 15 are respectively abutted against the limiting ring 19 and the limiting piece 20, and the paper fixing thimble 12 is fixedly connected with the lower end of the supporting rod 13;
the support sleeve rod 14 is fixedly connected with a box separator wood plate 18 on the die cutting machine through a fixing screw 17.
Compared with the mode that the paper pressing plate of the die-cutting full-waste-cleaning paper pressing device in the prior art is subjected to surface stress, the die-cutting full-waste-cleaning paper pressing mechanism is of a single-point structure, so that the paper pressing position of the paper pressing device can be set according to different paper and makeup, and meanwhile, independent pressure regulation can be performed on each paper pressing position to adapt to special requirements of products. When the problem that paper cannot be compressed due to deformation, deviation or upwarping and the like of the middle part of the paper edge of the waste product is encountered during die cutting and full waste removal of the box, the problem that the paper cannot be compressed can be solved by respectively adjusting the paper presses at the problem parts. Through setting up a plurality of paperweights, reduced the decurrent impact force of during operation to the wearing and tearing of every paperweight, the paperweight is not fragile, even damaged, also only needs to change the paperweight of damage, does not need whole change all paperweights, the cost is reduced. In the die cutting process, the anti-slip rubber block 11 compresses paper under the elastic force action of the spring 15, the stress mode is a point stress mode, in the operation process of the die cutting machine, when the anti-slip rubber block 11 is impacted, the anti-slip rubber block 11 can drive the supporting rod 13 to compress the spring 15, the paper fixing ejector pin 12 can be compressed on the paper at the moment, the paper is fixed, and meanwhile, under the rebound effect of the anti-slip rubber block 11, the paper can be separated from the paper fixing ejector pin 12, so that the paper can be kept firmly fixed and cannot be pricked upwards into the paper fixing ejector pin 12 all the time in the operation process of the whole die cutting machine.
As shown in fig. 3 and 4, for example, the size of the lower end surface of the support rod 13 is the same as the size of the surface of the anti-slip rubber block 11, and 4 to 8 paper fixing thimbles 12 penetrate through the anti-slip rubber block 11 and are fixedly connected with the paper pressing regulator. Set up bracing piece 13 lower extreme surface size with the size of non-slip rubber piece 11 surface is the same, convenient processing of being convenient for, so bracing piece 13 lower extreme surface size with the size of non-slip rubber piece 11 surface also can be different, for example, bracing piece 13 lower extreme surface ratio non-slip rubber piece 11 surface is big, bracing piece 13 lower extreme surface also can be than non-slip rubber piece 11 surface is little. Set up in the non-slip rubber piece 11 the fixed thimble 12 of paper should not too much, should not too little too much, and too much can influence the fastness of non-slip rubber piece, can influence the fixed effect of the fixed thimble of paper to the paper too little to 4 ~ 8 are suitable.
By way of example, the non-slip rubber block 11 is a rubber block with a hardness of 30 shore to 50 shore, and the paper fixing ejector pin 12 is a steel material with a hardness of 8.8 grade.
By way of example, the length of the non-slip rubber block 11 is 0.5mm to 0.8mm longer than the length of the paper fixing thimble 12. Preferably 0.5 mm. For example, the length of the paper fixing thimble is between 2mm and 4mm, and the length of the non-slip rubber block 11 is between 2.5mm and 4.8 mm.
As an example, the fixing screw 17 is a socket head cap screw having a hardness of 8.8.
By way of example, the support rod 13 is made of steel with the hardness of 8.8 grades and the length of the support rod is 35 cm-40 cm.
By way of example, the spring 15 has a diameter of 7cm, a length of 30cm and a wire diameter of 1 mm.
By way of example, the thickness of the cartoning plank 18 is 18 mm.
As shown in fig. 5 and 6, in order to realize the die-cutting full-waste-cleaning production on the 12-linked cigarette label hard box type makeup product by adopting the die-cutting full-waste-cleaning paper pressing mechanism, the problem that the production efficiency is influenced by the upwarping of the paper edge is avoided by adjusting the local pressure of the waste in the production.
Example one
The embodiment of the invention relates to die-cutting full-waste-cleaning production of a blue printing plate product of a main color of soft-box cigarette wrapping paper with the specification of 100.8mm x 155mm by adopting the die-cutting full-waste-cleaning paper pressing mechanism, and the gram weight of the paper pressing mechanism is 95g/m during printing2The light beam aluminum-sprayed paperboard has the paper width of 630mm and the circumference of the printing plate of 621.24mm (the diameter of a converted printing plate roller is 197.747 mm). Pattern engraving parameters: the number range of the added net lines is 90l/cm, the net value of the net points is 96 +/-1 mu m, the width range of the net wall at the edge of the net points is 15 +/-1 mu m, and the depth range of the net holes is 23 +/-1 mu m. The maximum printing speed of the production can reach 200 m/min.
After the scheme is used, the addition amount of the solvent in the production process is reduced, the viscosity of the ink can be improved to 22 seconds from 16 seconds, and the addition amount of the solvent is reduced by 50%.
Example two
The embodiment of the invention relates to die-cutting full-waste-cleaning production of a 98mm x 233mm specification carton packing paper main color red printing plate product by adopting the die-cutting full-waste-cleaning paper pressing mechanism, and the gram weight is 225g/m during printing2The light beam aluminum-sprayed paperboard has the paper width of 730mm and the circumference of the printing plate of 592.89mm (the diameter of a folding printing plate roller is 188.722 mm). Pattern engraving parameters: the number range of the added net lines is 70l/cm, the net value of the net points is 124 +/-1 mu m, the width range of the net wall at the edge of the net points is 18 +/-1 mu m, and the depth range of the net holes is 28 +/-1 mu m. The maximum printing speed of the production can reach 200 m/min.
In summary, in the die-cutting full waste-cleaning paper pressing mechanism, in the die-cutting process, the anti-slip rubber block presses paper under the elastic force of the spring, the stress mode is a point stress mode, when the anti-slip rubber block is impacted in the operation process of the die-cutting machine, the anti-slip rubber block can drive the supporting rod to compress the spring, the paper fixing ejector pins can press the paper to fix the paper, and meanwhile, under the rebound action of the anti-slip rubber block, the paper can be separated from the paper fixing ejector pins, so that the paper can be kept at a firm fixed position all the time and cannot be pricked upwards into the paper fixing ejector pins in the operation process of the die-cutting machine. Compared with the mode that the paper pressing plate of the die-cutting full-waste-cleaning paper pressing device in the prior art is subjected to surface stress, the die-cutting full-waste-cleaning paper pressing mechanism is of a single-point structure, so that the paper pressing position of the paper pressing device can be set according to different paper and makeup, and meanwhile, independent pressure regulation can be performed on each paper pressing position to adapt to special requirements of products. When the problem that paper cannot be compressed due to deformation, deviation or upwarping and the like of the middle part of the paper edge of the waste product is encountered during die cutting and full waste removal of the box, the problem that the paper cannot be compressed can be solved by respectively adjusting the paper presses at the problem parts. Through setting up a plurality of paperweights, reduced the decurrent impact force of during operation to the wearing and tearing of every paperweight, the paperweight is not fragile, even damaged, also only needs to change the paperweight of damage, does not need whole change all paperweights, the cost is reduced. Therefore, the invention effectively overcomes various defects in the prior art and has high industrial utilization value.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (9)
1. The utility model provides a clear paper pressing mechanism that gives up entirely of cross cutting, a serial communication port, clear paper pressing mechanism that gives up entirely of cross cutting includes at least:
the paper pressing devices are respectively fixed at the lower ends of the paper pressing regulators;
the paper pressing device comprises an anti-skid rubber block and a plurality of paper fixing thimbles, and the paper fixing thimbles penetrate through the anti-skid rubber block and are fixedly connected with the paper pressing regulator;
the paper pressing regulator comprises a supporting rod and a supporting sleeve rod, the supporting rod penetrates through the supporting sleeve rod in a sliding mode, a spring is arranged at the lower end of the supporting sleeve rod and sleeved on the supporting rod, a paper pressing mechanism pressure regulating nut is arranged at the upper end of the supporting rod, a limiting ring is arranged on the lower surface of the supporting sleeve rod, a limiting piece is arranged at the lower end of the supporting rod, the upper end and the lower end of the spring are respectively abutted against the limiting ring and the limiting piece, and the paper fixing thimble is fixedly connected with the lower end of the supporting rod;
the supporting sleeve rod is fixedly connected with a box divider wood plate on the die cutting machine through a fixing screw.
2. The die-cutting full waste-cleaning paper pressing mechanism according to claim 1, characterized in that: the size of the surface of the lower end of the supporting rod is the same as that of the surface of the anti-skid rubber block, and 4-8 paper fixing thimbles penetrate through the anti-skid rubber block and the paper pressing regulator and are fixedly connected with the paper pressing regulator.
3. The die-cutting full waste-cleaning paper pressing mechanism according to claim 1, characterized in that: the anti-skid rubber block is a rubber block with the hardness of 30 Shore hardness to 50 Shore hardness, and the paper fixing thimble is made of steel with the hardness of 8.8.
4. The die-cutting full waste-cleaning paper pressing mechanism according to claim 1, characterized in that: the length of the anti-skid rubber block is 0.5 mm-0.8 mm longer than that of the paper fixing thimble.
5. The die-cutting full waste-cleaning paper pressing mechanism according to claim 4, characterized in that: the length of the paper fixing thimble is between 2mm and 4 mm.
6. The die-cutting full waste-cleaning paper pressing mechanism according to claim 1, characterized in that: the fixing screw is an inner hexagonal screw with the hardness of 8.8 grade.
7. The die-cutting full waste-cleaning paper pressing mechanism according to claim 1, characterized in that: the supporting rod is made of steel with the hardness of 8.8 grades, and the length of the supporting rod is between 35cm and 40 cm.
8. The die-cutting full waste-cleaning paper pressing mechanism according to claim 1, characterized in that: the diameter of the spring is 7cm, the length of the spring is 30cm, and the wire diameter of the spring is 1 mm.
9. The die-cutting full waste-cleaning paper pressing mechanism according to claim 1, characterized in that: the thickness of the wooden plate of the box separating device is 18 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010237590.5A CN111391006B (en) | 2020-03-30 | 2020-03-30 | Die-cutting full-waste-cleaning paper pressing mechanism |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010237590.5A CN111391006B (en) | 2020-03-30 | 2020-03-30 | Die-cutting full-waste-cleaning paper pressing mechanism |
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| CN111391006A CN111391006A (en) | 2020-07-10 |
| CN111391006B true CN111391006B (en) | 2022-02-18 |
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| EP1400325A1 (en) * | 2002-09-12 | 2004-03-24 | Bobst S.A. | Method and device for seperating blanks in a machine for cutting sheet material |
| CN202200651U (en) * | 2011-08-05 | 2012-04-25 | 上海烟草集团有限责任公司 | Paper pressing mechanism for upper paper separating device |
| CN203062858U (en) * | 2013-03-06 | 2013-07-17 | 象山万克机械制造有限公司 | Paper pressing mechanism used for paper punching machine |
| CN103552119A (en) * | 2013-10-17 | 2014-02-05 | 山东泰宝防伪制品有限公司 | Manufacturing method of round hole die-cutting waste removing plate |
| CN205634416U (en) * | 2016-04-26 | 2016-10-12 | 东莞市快达装订机械有限公司 | Paper is converted into quick -witted noise reduction nipper and is constructed |
| CN107344373A (en) * | 2017-08-16 | 2017-11-14 | 粤和兴激光刀模（深圳）有限公司 | Packing paper processing mould |
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2020
- 2020-03-30 CN CN202010237590.5A patent/CN111391006B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1400325A1 (en) * | 2002-09-12 | 2004-03-24 | Bobst S.A. | Method and device for seperating blanks in a machine for cutting sheet material |
| CN202200651U (en) * | 2011-08-05 | 2012-04-25 | 上海烟草集团有限责任公司 | Paper pressing mechanism for upper paper separating device |
| CN203062858U (en) * | 2013-03-06 | 2013-07-17 | 象山万克机械制造有限公司 | Paper pressing mechanism used for paper punching machine |
| CN103552119A (en) * | 2013-10-17 | 2014-02-05 | 山东泰宝防伪制品有限公司 | Manufacturing method of round hole die-cutting waste removing plate |
| CN205634416U (en) * | 2016-04-26 | 2016-10-12 | 东莞市快达装订机械有限公司 | Paper is converted into quick -witted noise reduction nipper and is constructed |
| CN107344373A (en) * | 2017-08-16 | 2017-11-14 | 粤和兴激光刀模（深圳）有限公司 | Packing paper processing mould |
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| CN111391006A (en) | 2020-07-10 |
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