CN108527947A - Trimming processing unit and anti-cutting hand processing method - Google Patents
Trimming processing unit and anti-cutting hand processing method Download PDFInfo
- Publication number
- CN108527947A CN108527947A CN201810340390.5A CN201810340390A CN108527947A CN 108527947 A CN108527947 A CN 108527947A CN 201810340390 A CN201810340390 A CN 201810340390A CN 108527947 A CN108527947 A CN 108527947A
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- China
- Prior art keywords
- trimming
- processing unit
- paper
- grip block
- pressing device
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Links
- 238000009966 trimming Methods 0.000 title claims abstract description 67
- 238000005520 cutting process Methods 0.000 title claims abstract description 18
- 238000003672 processing method Methods 0.000 title claims abstract description 9
- 238000003825 pressing Methods 0.000 claims abstract description 40
- 230000004888 barrier function Effects 0.000 claims description 15
- 238000005452 bending Methods 0.000 abstract description 12
- 239000000835 fiber Substances 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 6
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007639 printing Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 208000005890 Neuroma Diseases 0.000 description 1
- 206010067268 Post procedural infection Diseases 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000005036 nerve Anatomy 0.000 description 1
- 230000001537 neural effect Effects 0.000 description 1
- 230000008058 pain sensation Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 231100000241 scar Toxicity 0.000 description 1
- 230000000472 traumatic effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
- B31F1/0003—Shaping by bending, folding, twisting, straightening, flattening or rim-rolling; Shaping by bending, folding or rim-rolling combined with joining; Apparatus therefor
- B31F1/0006—Bending or folding; Folding edges combined with joining; Reinforcing edges during the folding thereof
- B31F1/0009—Bending or folding; Folding edges combined with joining; Reinforcing edges during the folding thereof of plates, sheets or webs
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
The present invention provides a kind of trimming processing unit and anti-cutting hand processing methods, are related to the technical field of paper processing relevant device, including blank pressing device；The blank pressing device lower end is provided with the upper cambered surface for making trimming be bent.Trimming processing unit provided by the invention can press to trimming using upper cambered surface, to trimming curved edge, force object is set to be greatly reduced by the power in the extended line direction on trimming, in the case where forced area is basically unchanged, the pressure that force object (finger) is subject to can be made also significantly to reduce, and the fiber of loose paper edge to a certain extent is capable of on treated trimming, trimming is set to become soft, additionally due to meeting deformation when by external force of the edge of bending absorbs the active force of a part, the possibility that incised wound is scratched by paper edge is greatly lowered.
Description
Technical field
The present invention relates to the technical fields that paper handles relevant device, more particularly, to a kind of trimming processing unit and anti-cutting hand
Processing method.
Background technology
Now all of paper is all this smooth pattern above, and the circle left side is the side view of a piece of paper, circle in figure
It is the edge of paper at circle, due to paper formation, when edge receives external force (finger pressing), the reaction force acts side that provides
To consistent, and because paper edge is relatively thin, forced area is smaller, and pressure is larger, along with extraneous force object (finger) may patch
Nearly paper edge fast moves, and makes paper that external world's force object is scratched or be cut.
Due to there is whole body most intensive algesiroreceptor-nerve endings up and down on finger, especially finger tip, so working as hand
Finger will produce the more strong pain sensation and scar when being scratched by trimming, if what is scratched is neural fine on finger
Dimension, nerve fibre are cut off, and there will be certain probability to obtain traumatic neuroma.If cleaning is not felt concurrently in time after being scratched
Dye meets water postoperative infection, then bacterium can be made to enter wound, be inflamed reaction.The skin of especially child is more delicate, more
It is easy to by the sharp edge torn of paper.
Invention content
The purpose of the present invention is to provide trimming processing unit and anti-cutting hand processing methods, to alleviate present reading a book
When the technical issues of often other paper scratches finger.
A kind of trimming processing unit provided by the invention, including blank pressing device；The blank pressing device lower end is provided with for making paper
The upper cambered surface of side bending.
Further, further include operation console, be provided in the operation console side for keeping trimming curved with the cooperation of upper cambered surface
Bent lower camber side.
Further, further include upper grip block, the upper grip block is located at the operation console upper end, is used for the paper
It is fixed on the operation console.
Further, further include side grip block；The blank pressing device is pressed downward paper along the side grip block.
Further, further include supporting rack, the pelleting press is arranged on support frame as described above；
The driving device for making the pelleting press move downward is provided on support frame as described above.
Further, the driving device includes mandril and handle, is that mandril is applied to the blank pressing device by rotating handle
Plus-pressure.
Further, the driving device is telescopic mast, and the blank pressing device is arranged on the telescopic mast.
Further, further include support plate, the support plate is arranged on the operation console, and the upper grip block setting exists
The support plate, and the upper grip block can be slided along the support plate.
Further, it is provided with adjustment hole on the upper grip block, is provided on the operation console and the adjustment hole
Corresponding mounting hole.
Further, further include barrier plate, the barrier plate is arranged on the mounting hole.
The present invention also provides a kind of anti-cutting hand processing methods, include the following steps：
S1：Paper is placed on operation console, is then clamped with grip block；
S2：It is pressed to paper side with pelleting press, makes paper curving.
Trimming processing unit provided by the invention and anti-cutting hand processing method can press to trimming using upper cambered surface,
To trimming curved edge, so that force object is greatly reduced by the power in the extended line direction on trimming, be basically unchanged in forced area
Under, the pressure that force object (finger) is subject to can be made also significantly to reduce, and treated trimming can be to a certain extent
The fiber of loose paper edge makes trimming become soft, additionally due to the edge of bending can deformation absorption one when by external force
The possibility that incised wound is scratched by paper edge is greatly lowered in partial active force.
Description of the drawings
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, in being described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, other drawings may also be obtained based on these drawings.
Fig. 1 is the structural schematic diagram of trimming processing unit provided in an embodiment of the present invention；
Fig. 2 is another structural schematic diagram of trimming processing unit shown in Fig. 1；
Fig. 3 is another structural schematic diagram of trimming processing unit shown in Fig. 1；
Fig. 4 is the structural schematic diagram of another angle of trimming processing unit shown in Fig. 1.
Icon：100- blank pressing devices；The upper cambered surfaces of 101-；200- operation consoles；201- lower camber sides；300- adjustment holes；
400- mounting holes；500- barrier plates；600- support plates；700- supporting racks；800- handles；900- mandrils.
Specific implementation mode
Technical scheme of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
The every other embodiment that personnel are obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term "center", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for the description present invention and simplify description, do not indicate or imply the indicated device or element must have a particular orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for description purposes only, and is not understood to indicate or imply relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
Can also be electrical connection to be mechanical connection；It can be directly connected, can also indirectly connected through an intermediary, Ke Yishi
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
As Figure 1-Figure 2, a kind of trimming processing unit provided by the invention, including blank pressing device 100；The blank pressing device
100 lower ends are provided with the upper cambered surface 101 for making trimming be bent.
In some embodiments, 100 lower end of blank pressing device is that cambered surface can be by paper when handling paper
It is placed on desktop, application pressure is carried out to the trimming of paper using blank pressing device 100, so that its trimming is bent, makes force object by trimming
The power in extended line direction greatly reduce, due to bending edge when by external force can deformation absorb the active force of a part,
The possibility that incised wound is scratched by paper edge is greatly lowered.
The trimming processing unit can be used for publishing house, printing society carries out anti-cutting processing before book publishing to books.
Further include operation console 200 further on above-described embodiment basis, is set in 200 side of the operation console
It is equipped with for coordinating the lower camber side 201 for making trimming be bent with upper cambered surface 101.
In some embodiments, which further includes operation console 200, and pending books are placed on operation
On platform 200, the side of books is located at 201 top of lower camber side, applies pressure to books by blank pressing device 100, makes entire books one
The trimming of side is bent downwardly, and to realize the anti-cutting processing of books, upper cambered surface 101 and lower camber side 201, which match, can ensure book
The trimming of nationality excessively will not be bent, it is ensured that the consistency of all books bendings.
Books refer to papery version books herein, i.e., can also increase cover one in treated books without hard shell
The cambered cover in side, can be such that the radian of books preferably keeps in this way.
Trimming processing unit can also be handled large batch of paper.
Trimming processing unit can be solved and be reduced scratches the case where hurting by paper edge, the edge of paper is carried out such
Anti-cutting processing so that paper edge is rounded and is slightly turned under, and can be obtained by physics force analysis, when receiving extraneous force object
When the pressing of (finger) equal extent, since paper edge is bent, force object can be made big by the power in the extended line direction on trimming
It is big to reduce, in the case where forced area is basically unchanged, the pressure that force object (finger) is subject to can be made also significantly to reduce.
By the fiber for the paper loose paper edge to a certain extent that anti-cutting is handled, trimming is set to become soft, in addition
Due to the active force of edge meeting deformation absorption part when by external force of bending, it is greatly lowered to be scratched by paper edge and hurts
Possibility.
Further include upper grip block further on above-described embodiment basis, the upper grip block is located at the behaviour
Make 200 upper end of platform, for the paper to be fixed on the operation console 200.
In some embodiments, upper grip block has larger area and longer length, the length of general book to be respectively less than
The length of upper grip block, when being handled books using blank pressing device 100, out-of-flatness after books stress in order to prevent,
Upper grip block is pressed in above books, make blank pressing device 100 handle trimming when, books position is fixed, it is ensured that bending it is consistent
Property.
Further include side grip block further on above-described embodiment basis；The blank pressing device 100 is along the side
Grip block is pressed downward paper.
In some embodiments, inner groovy can be set on the grip block of side, is provided on blank pressing device 100 and matches with inner groovy
The sliding block of conjunction, blank pressing device 100 can be mounted on the grip block of side, and such blank pressing device 100 can be transported along side grip block to upper and lower
It is dynamic.
When handle books, one end of books is made uniform by side grip block；Blank pressing device 100 is to same class in this way
When books carry out flanging processing, the position of the bending of each books and angle all same ensure the one of the appearance of books
It is straightforward.
Fig. 3 is another structural schematic diagram of trimming processing unit shown in Fig. 1；Fig. 4 is trimming processing unit shown in Fig. 1
The structural schematic diagram of another angle.
As shown in Figure 3 and Figure 4, it is based on above-described embodiment basis, further includes supporting rack 700, the pressure further
Piece device is arranged on support frame as described above 700；
The driving device for making the pelleting press move downward is provided on support frame as described above 700.
In some embodiments, the paper in order to be superimposed for more layers carries out anti-cutting processing, is driven by driving device
Dynamic pelleting press；Paper is handled using pelleting press relative to artificial, driving device can apply the power of bigger to paper, from
And can thicker books be carried out with anti-cutting processing, and artificial physical demands is reduced, driving device drives blank pressing device 100,
The treatment effect of books is stablized, will not be as artificial, due to physical demands, efficiency reduces, and it is poor that product is stablized.
On above-described embodiment basis, further, the driving device includes mandril 900 and handle 800, is passed through
Rotating handle 800 is that mandril 900 applies pressure to the blank pressing device 100.
In some embodiments, driving device includes having threaded mandril 900 and handle 800；The setting of handle 800 is being pushed up
The top of bar 900.
Supporting rack 700 includes pedestal, support column and top plate, and pedestal is two, and two pedestals are separately positioned on operation console 200
Both sides, support column is set on pedestal, on the top and top plate of two support columns.
It is provided with the threaded hole being spirally connected with mandril 900 on top plate, mandril 900 can be made to increase by rotating handle 800
Or decline.
Guide sleeve is arranged with outside support column, guide sleeve is connect by connecting rod with blank pressing device 100；Blank pressing device 100 can
Rise along support column or declines；When needing blank pressing device 100 to carry out bending process to the trimming of books, by blank pressing device
100 are placed on the side of books, and rotating handle 800 makes mandril 900 move downward, and apply pressure to the top of blank pressing device 100, this
Sample blank pressing device 100 just presses to the trimming of books, makes its bending.
Generally using 900 upper end of mandril setting perforation, 800 one end of handle have larger diameter, cannot from perforation across,
When power in order to apply bigger, longer handle 800 can be replaced, using lever principle, using identical power when
It waits, blank pressing device 100 can apply books the power of bigger, reduce the physical demands of anti-cutting processing, and increase and can handle
The thickness of books.
On above-described embodiment basis, further, the driving device is telescopic mast, and the blank pressing device 100 is set
It sets on the telescopic mast.
In order to preferably control the lifting of blank pressing device 100, pressure device is enable to apply the pressure of bigger, driving device is to stretch
Contracting column, telescopic mast can be hydraulically extensible column, and 100 upper end of blank pressing device is arranged in telescopic mast lower end, and telescopic mast can drive flanging
The lifting of device 100.
Telescopic mast can make the power for making trimming be bent of pressure device generation bigger, and telescopic mast utilizes electrical energy drive, reduces
The labor intensity of operating personnel.
Telescopic mast can also use electric putter, electric putter to have the advantages that noise smaller compared to hydraulic column.
Further include support plate 600 further, the support plate 600 is arranged in institute on above-described embodiment basis
It states on operation console 200, the upper grip block is arranged in the support plate 600, and the upper grip block can be along the support plate
600 slidings.
In some embodiments, in order to ensure handling again books when, books will not be due to the device that is under pressure
Pressure and change position.
200 side of operation console is provided with support plate 600, spine one end of books relies in support plate 600, upper clamping
Plate is pressed in the upper end of books, and the side of books is located at the upper end of the lower camber side 201 of operation console 200, the upper cambered surface of blank pressing device 100
101 contact with the trimming of books, and the trimming of books is made to form the radian as upper cambered surface 101.
In order to enable upper grip block preferably to be slided along support plate 600, it is provided with T-slot in support plate 600, upper
The T-type boss coincideing with T-slot is provided on grip block；Upper grip block is moved up and down relative to support plate 600.
On above-described embodiment basis, further, it is provided with adjustment hole 300 on the upper grip block, described
Mounting hole corresponding with the adjustment hole 300 400 is provided on operation console 200.
Further include barrier plate 500 further, the barrier plate 500 is arranged in institute on above-described embodiment basis
It states on mounting hole 400.
In some embodiments, due to there are many specifications of books, in order to enable trimming processing unit to have more extensively
Use scope, multiple adjustment holes 300 are provided on upper grip block, are provided on operation console 200 corresponding with adjustment hole 300
Mounting hole 400.
Barrier plate 500 can be inserted into across adjustment hole 300 in mounting hole 400, and the spine of books can be with barrier plate 500
Alignment, to realize that the upper and lower and left side of books is defined, it is ensured that when blank pressing device 100 handles trimming, the jail of books
Gu to keep homogeneity of product more preferable.
The position of the adjustment hole 300 of upper grip block is arranged according to the specification of books, each adjustment hole 300 corresponds to a kind of book
The specification of nationality, to realize that a kind of trimming processing unit can carry out anti-cutting processing to a variety of books.
Mounting hole 400 and adjustment hole 300 are located at strip hole, and what barrier plate 500 can be bonded is inserted into mounting hole 400,
Reduce the shaking of barrier plate 500 all around, it is ensured that when each books is handled, the position one of books curving
It causes.
Paper production department is referred to as standard-sized sheet paper by the paper that national Specification produces, and a standard-sized sheet paper is cut or folded
At several Xiao Zhangs of area equation, cries and how much open number, bind into book form, as how many format.There is system in the specification of various formats, the whole nation
One standard, so the books in all parts of the country for printing out, same specification is all an equal amount of.
Since the paper breadth of various specifications is in different size, although all cut out be converted into it is same open number, size specification is not yet
Equally, imprecise if being referred to as how many format after ordering into book.It is used using the paper of 787*1092 (mm) as standard printed sheet in China
It is printed as 32 books opened, and is called 32 formats.
If being printed as 32 books opened with the paper of 850*1168 (mm), because paper breadth is bigger than standard printed sheet, therefore it to be preced with one
" big " word, referred to as big 32 format.
Books according to different paper device are also different, are mounted in different adjustment holes 300 by barrier plate 500, real
Now the anti-cutting of the books of the binding papers of the paper of various specifications and various specifications is handled.
Barrier plate 500 is generally made of the larger metal of quality, when using trimming processing unit, barrier plate
500 can rely on the gravity of itself firm, avoid in use, barrier plate 500 moves.
A kind of anti-cutting hand processing method, includes the following steps：
S1：Paper is placed on operation console 200, is then clamped with grip block；
S2：It is pressed to paper side with pelleting press, makes paper curving.
The possibility that incised wound is scratched by paper edge is greatly lowered in treated paper.
Trimming processing unit provided by the invention can press to trimming using upper cambered surface 101, to trimming edge
Bending, makes force object be greatly reduced by the power in the extended line direction on trimming, in the case where forced area is basically unchanged, can make force object
The pressure that (finger) is subject to also significantly reduces, and treated trimming being capable of loose paper edge to a certain extent
Fiber makes trimming become soft, additionally due to meeting deformation when by external force of the edge of bending absorbs the active force of a part, greatly
Amplitude reduction is scratched the possibility of incised wound by paper edge.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Present invention has been described in detail with reference to the aforementioned embodiments for pipe, it will be understood by those of ordinary skill in the art that：Its according to
So can with technical scheme described in the above embodiments is modified, either to which part or all technical features into
Row equivalent replacement；And these modifications or replacements, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. a kind of trimming processing unit, which is characterized in that including blank pressing device；The blank pressing device lower end is provided with for keeping trimming curved
Bent upper cambered surface.
2. trimming processing unit according to claim 1, which is characterized in that further include operation console, in the operation console one
Side is provided with the lower camber side for making trimming be bent with the cooperation of upper cambered surface.
3. trimming processing unit according to claim 2, which is characterized in that further include upper grip block, the upper grip block
Positioned at the operation console upper end, for the paper to be fixed on the operation console.
4. trimming processing unit according to claim 3, which is characterized in that further include side grip block；The blank pressing device edge
The side grip block is pressed downward paper.
5. trimming processing unit according to claim 1, which is characterized in that further include supporting rack, the pelleting press setting
On support frame as described above；
The driving device for making the pelleting press move downward is provided on support frame as described above.
6. trimming processing unit according to claim 5, which is characterized in that the driving device includes mandril and handle,
It is that mandril applies pressure to the blank pressing device by rotating handle.
7. trimming processing unit according to claim 5, which is characterized in that the driving device is telescopic mast, the pressure
Side device is arranged on the telescopic mast.
8. trimming processing unit according to claim 3, which is characterized in that further include support plate, the support plate setting
On the operation console, the upper grip block is arranged in the support plate, and the upper grip block can be slided along the support plate
It is dynamic.
9. trimming processing unit according to claim 3, which is characterized in that it is provided with adjustment hole on the upper grip block,
Mounting hole corresponding with the adjustment hole is provided on the operation console；
Further include barrier plate, the barrier plate is arranged on the mounting hole.
10. a kind of anti-cutting hand processing method, includes the following steps：
S1：Paper is placed on operation console, is then clamped with grip block；
S2：It is pressed to paper side with pelleting press, makes paper curving.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810340390.5A CN108527947A (en) | 2018-04-16 | 2018-04-16 | Trimming processing unit and anti-cutting hand processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810340390.5A CN108527947A (en) | 2018-04-16 | 2018-04-16 | Trimming processing unit and anti-cutting hand processing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108527947A true CN108527947A (en) | 2018-09-14 |
Family
ID=63480297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810340390.5A Pending CN108527947A (en) | 2018-04-16 | 2018-04-16 | Trimming processing unit and anti-cutting hand processing method |
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| Country | Link |
|---|---|
| CN (1) | CN108527947A (en) |
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| CN203818706U (en) * | 2014-02-28 | 2014-09-10 | 北新集团建材股份有限公司 | Molding machine of gypsum plaster board and edge pressing device of molding machine |
| CN204019627U (en) * | 2014-08-22 | 2014-12-17 | 南阳医学高等专科学校第一附属医院 | A kind of accounting voucher special-purpose multifunctional punching pressuring flat device |
| CN204322786U (en) * | 2014-12-11 | 2015-05-13 | 余志仁 | One turns over book clamp |
| CN104608421A (en) * | 2015-01-26 | 2015-05-13 | 华新(佛山)彩色印刷有限公司 | Production method of edge-pressed corrugated paper box |
| CN205736502U (en) * | 2016-05-18 | 2016-11-30 | 邵济源 | A kind of books blank pressing device |
| CN107804087A (en) * | 2016-09-09 | 2018-03-16 | 卡西欧计算机株式会社 | Page press device and leaf turner |
| CN106364214A (en) * | 2016-10-31 | 2017-02-01 | 南京工程学院 | Safe book for children |
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| CN208263561U (en) * | 2018-04-16 | 2018-12-21 | 于越 | Trimming processing unit |
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