CN110815936A - Automatic edge folding device and edge folding method for bottom of outer box of notebook computer - Google Patents
Automatic edge folding device and edge folding method for bottom of outer box of notebook computer Download PDFInfo
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- CN110815936A CN110815936A CN201910850020.0A CN201910850020A CN110815936A CN 110815936 A CN110815936 A CN 110815936A CN 201910850020 A CN201910850020 A CN 201910850020A CN 110815936 A CN110815936 A CN 110815936A
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- folding
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- base frame
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- 238000000034 method Methods 0.000 title claims abstract description 13
- 210000002105 tongue Anatomy 0.000 claims abstract description 72
- 230000007246 mechanism Effects 0.000 claims abstract description 26
- 230000007306 turnover Effects 0.000 claims description 15
- 230000003213 activating effect Effects 0.000 claims description 2
- 238000009434 installation Methods 0.000 description 10
- 239000000758 substrate Substances 0.000 description 9
- 230000006872 improvement Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000009957 hemming Methods 0.000 description 1
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Classifications
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- 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
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
- B31B50/26—Folding sheets, blanks or webs
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- 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
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
- B31B50/26—Folding sheets, blanks or webs
- B31B50/28—Folding sheets, blanks or webs around mandrels, e.g. for forming bottoms
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- 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
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
- B31B50/74—Auxiliary operations
Abstract
The invention provides an automatic box bottom edge folding device of a notebook computer outer box, which comprises a convex tongue pressing mechanism, wherein two first convex tongues of the paper box are pressed downwards from the position right above the paper box, the convex tongue pressing mechanism comprises a base plate, the base plate is arranged along the length direction of the paper box and is connected to a rack in a sliding manner, two third driving cylinders are arranged on the top surface of the base plate and are respectively positioned at two opposite edges of the base plate, two pressing plates are arranged on the bottom surface of the base plate and are vertical to the base plate, the two pressing plates are positioned in a plane space between the two third driving cylinders, and the first convex tongues are pressed downwards by the pressing plates. The invention also provides a flanging method. Compared with the prior art, the invention can lead the first tongue and the second tongue to form automatic assembly, and effectively improves the working efficiency on the premise of low cost.
Description
Technical Field
The invention relates to a carton flanging device, in particular to an automatic box bottom flanging device and a flanging method for an outer box of a notebook computer.
Background
In the assembly of the outer case of a notebook, some cartons have a bottom structure as shown in fig. 1, a second tab 213 is provided on the first long flap 211, two first tabs 23 are provided on the second long flap 212, and the two first tabs 23 are snapped under the second long flap 212 by a second tab 213, and then the two first tabs 23 are snapped under the first long flap 211 to achieve a fixed engagement of the bottom of the carton.
In the conventional automatic hemming device, bending of the first long hem 211, the second long hem 212 and the two short hems 22 can be completed only, and the above-mentioned tongue is mainly completed by manual assistance or assistance of a robot, so that the problems of low working efficiency and high working cost mainly exist.
Disclosure of Invention
In view of the above, the invention provides an automatic edge folding device and an automatic edge folding method for a box bottom of an outer box of a notebook computer, which are mainly improved in that a tongue pressing mechanism capable of being driven in multiple processes is arranged, so that a first tongue and a second tongue can be automatically assembled, and the operation efficiency is effectively improved on the premise of low cost.
Therefore, in one aspect, the invention provides an automatic edge folding device for a box bottom of an outer box of a notebook computer, which comprises:
the symmetrical two-long-edge folding mechanism is used for folding two long edges from two long edges of the carton respectively, the long-edge folding mechanism comprises at least one long-edge folding unit, the long-edge folding unit comprises a first installation base frame, the first installation base frame is arranged along the height direction of the carton, a first driving cylinder parallel to the first installation base frame is fixedly installed on the first installation base frame, the end part of a driving shaft of the first driving cylinder is hinged with the first end of a first folding block, the first folding block is obliquely arranged, the second end of the first folding block is hinged with the end part of the first installation base frame, the first end and the second end are positioned on the same side, a third end, corresponding to the first end, of the first folding block is hinged with a first folding plate, and the first folding plate presses the long edge downwards;
the symmetrical two short folding edge folding mechanisms respectively fold two short folding edges from two short folding edges of the carton, each short folding edge folding mechanism comprises at least one short folding edge folding unit, each short folding edge folding unit comprises a second installation base frame, the second installation base frames are arranged along the length direction of the carton, a second driving cylinder parallel to the second installation base frames is fixedly installed on each second installation base frame, the end part of a driving shaft of each second driving cylinder is hinged to the fourth end of each second folding block, each second folding block is obliquely arranged, the fifth end of each second folding block is hinged to the end part of each second installation base frame, the fourth end and the fifth end are located on the same side, the sixth end, corresponding to the fourth end, of each second folding block is hinged to a second folding plate, and each second folding plate downwards presses the short folding edge;
the convex tongue pressing mechanism presses two first convex tongues of the carton downwards from the position right above the carton, the convex tongue pressing mechanism comprises a base plate which is arranged along the length direction of the carton, the base plate is connected to the rack in a sliding mode, two third driving cylinders are arranged on the top surface of the base plate and are respectively located on two opposite edges of the base plate, two pressing plates are arranged on the bottom surface of the base plate and are perpendicular to the base plate, the two pressing plates are located in a plane space between the two third driving cylinders, and the pressing plates press the first convex tongues downwards.
Further, the first mounting base frame is an L-shaped base frame.
Further, the first end and the second end are perpendicular.
Furthermore, the first turnover plate is a U-shaped plate body, two folding edges of the first turnover plate are hinged to two opposite ends of the third end, and the end part of the first turnover plate is provided with a first conical plate end.
Further, the second mounting base frame is an L-shaped base frame.
Further, the fourth end and the fifth end are perpendicular.
Furthermore, the second turnover plate is a U-shaped plate body, two folding edges of the second turnover plate are hinged to two opposite ends of the sixth end, and the end part of the second turnover plate is provided with a second conical plate end.
Further, the pressing plate is a rectangular plate body.
On the other hand, the invention provides a folding method of an automatic folding device for the bottom of a notebook computer outer box, which comprises the following steps:
1) starting a second driving cylinder, driving a second turnover block to swing downwards by the second driving cylinder, stopping the second turnover block after swinging for a preset angle of 45 degrees, pressing a short folded edge of the carton by the second turnover block, and folding the short folded edge;
2) starting a first driving cylinder, driving a first turnover block to swing downwards by the first driving cylinder, stopping the first turnover block after swinging for a preset angle of 35 degrees, pressing a long folded edge of the carton downwards by the first turnover block, and folding the long folded edge into the short folded edge;
3) and starting a third driving cylinder, driving the substrate to descend by the third driving cylinder, pressing two first convex tongues of the second long folding edge downwards by two pressing plates positioned on the bottom surface of the substrate, extruding the two first convex tongues to the lower part of the opposite first long folding edge, positioning a second convex tongue of the first long folding edge between the two first convex tongues, enabling the second convex tongue to be concave due to the deformation of the second long folding edge, continuing to drive the substrate to descend by at least 1.5cm by the third driving cylinder, continuing to press the two first convex tongues, pressing the central position of the second long folding edge to form a recess, enabling the second convex tongue to fall into the recess, and pressing the central position of the second long folding edge above the second convex tongue after the second long folding edge is reset to finish the pressing of the convex tongue part.
The invention provides an automatic bottom edge folding device and an automatic bottom edge folding method for an outer box of a notebook computer, which are mainly improved in that a tongue pressing-in mechanism capable of being driven in multiple processes is arranged, and the specific working principle is as follows: the third driving cylinder drives the substrate to move downwards, the two pressing plates positioned on the bottom surface of the substrate downwards press the two first convex tongues of the second long folding edge, the two first convex tongues are extruded to the position below the opposite first long folding edge, one second convex tongue of the first long folding edge is positioned between the two first convex tongues, the second convex tongue is sunken due to the deformation of the second long folding edge, the third driving cylinder continues to drive the substrate to move downwards for at least 1.5cm at the moment, the two first convex tongues continue to be pressed downwards, the central position of the second long folding edge is pressed downwards to generate a recess, the second convex tongue falls into the recess, and the central position of the second long folding edge is pressed above the second convex tongue after the second long folding edge is reset;
therefore, compared with the prior art, the automatic assembly of the first tongue and the second tongue can be realized, and the working efficiency is effectively improved on the premise of low cost.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
FIG. 1 is a schematic structural diagram of a paper box involved in an automatic bottom edge folding device of an outer box of a notebook computer provided by an embodiment of the invention;
FIG. 2 is a schematic structural diagram of a front side of an automatic edge folding device for a box bottom of an outer box of a notebook computer provided by an embodiment of the invention;
fig. 3 is a schematic structural view of the reverse side of an automatic box bottom edge folding device of an outer box of a notebook computer provided by the embodiment of the invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
The first embodiment is as follows:
referring to fig. 2 to 3, the automatic bottom edge folding device for an outer case of a notebook computer according to an embodiment of the present invention is shown, which mainly includes two symmetrical long edge folding mechanisms 1, two symmetrical short edge folding mechanisms 3 and a tongue pressing mechanism 4, which are mounted on a frame (not shown);
referring to fig. 2 to 3, the two long-folded-edge folding mechanisms 1 respectively fold the two long folded edges 21 of the carton 2 from the two long folded edges 21, each long-folded-edge folding mechanism 1 includes two parallel long-folded-edge folding units 11, each long-folded-edge folding unit 11 includes a first mounting base frame 12, each first mounting base frame 12 is arranged along the height direction of the carton 2, a first driving cylinder 13 parallel to the first mounting base frame 12 is fixedly mounted on each first mounting base frame 12, an end portion of a driving shaft 131 of each first driving cylinder 13 is hinged to a first end 141 of each first folded block 14, each first folded block 14 is obliquely arranged, a second end 142 of each first folded block 14 is also hinged to an end portion of each first mounting base frame 12, the first end 141 and the second end 142 are located on the same side, a third end 143, which is equivalent to the first end 141, of each first folded block 14 is hinged to a first folded plate 15, and the first folded plate 15 presses down the long folded edge 21;
referring to fig. 2 to 3, the two short folded edge folding mechanisms 3 respectively fold the two short folded edges 22 from the two short folded edges 22 of the carton 2, each short folded edge folding mechanism 3 includes two parallel short folded edge folding units 31, each short folded edge folding unit 31 includes a second mounting base frame 32, the second mounting base frames 32 are arranged along the length direction of the carton 2, a second driving cylinder 33 parallel to the second mounting base frame 32 is fixedly mounted on each second mounting base frame 32, an end portion of a driving shaft 331 of each second driving cylinder 33 is hinged to a fourth end 341 of each second folded block 34, the second folded blocks 34 are obliquely arranged, a fifth end 342 of each second folded block 34 is also hinged to an end portion of each second mounting base frame 32, the fourth end 341 and the fifth end 342 are located on the same side, a sixth end 343, which is equivalent to the fourth end 341, of each second folded block 34 is hinged to a second folded plate 35, and the second folded plate 35 presses down the short folded edge 22;
referring to fig. 2 to 3, the tongue pressing mechanism 4 presses the two first tongues 23 of the carton 2 from a position right above the carton 2, the tongue pressing mechanism 4 includes a base plate 41 arranged along the length direction of the carton 2, the base plate 41 is slidably connected to the frame, two third actuating cylinders 42 are disposed on the top surface of the base plate 41, the two third actuating cylinders 42 are respectively disposed at two opposite edges of the base plate 41, two pressing plates 43 are disposed on the bottom surface of the base plate 41, the pressing plates 43 are rectangular plate bodies, the pressing plates 43 are perpendicular to the base plate 41, the two pressing plates 43 are disposed in a plane space between the two third actuating cylinders 42, and the pressing plates 43 press the first tongues 23.
Referring to fig. 1 to 3, a folding method of an automatic folding device for a bottom of an outer case of a notebook computer provided in an embodiment of the present invention includes the following steps:
s1: starting a second driving air cylinder 33, driving a second folding block 34 to swing downwards by the second driving air cylinder 33, stopping the second folding block 34 after swinging for a preset angle of 45 degrees, pressing the short folding edge 22 of the paper box 2 downwards by the second folding block 34, and folding the short folding edge 22;
s2: starting a first driving air cylinder 13, driving a first folding block 14 to swing downwards by the first driving air cylinder 13, stopping the first folding block 14 after swinging for a preset angle of 35 degrees, pressing a long folding edge 21 of the paper box 2 downwards by the first folding block 14, and folding the long folding edge 21 in and pressing a short folding edge 22;
s3: activating third actuating cylinder 42, third actuating cylinder 42 moving base 41 downward, pressing two pressing plates 43 on the bottom surface of base 41 downward to press two first tongues 23 of second long folded edge 212, the two first tongues 23 being squeezed under the opposite first long folded edge 211, a second tongue 213 of first long folded edge 211 being located between the two first tongues 23, the second tongue 213 being recessed due to the deformation of second long folded edge 212, while third actuating cylinder 42 continues to move base 41 downward at least 1.5cm, the two first tongues 23 continuing to be pressed, the center of second long folded edge 212 being pressed to form a recess, while second tongue 213 falls into the recess, and after second long folded edge 212 is reset, the center of second long folded edge 212 being pressed above second tongue 213 to complete partial tongue pressing.
The automatic bottom edge folding device and the automatic bottom edge folding method for the outer box of the notebook computer have the main improvement that a tongue pressing-in mechanism capable of being driven in multiple processes is arranged, and the specific working principle is as follows: the third driving cylinder drives the substrate to move downwards, the two pressing plates positioned on the bottom surface of the substrate downwards press the two first convex tongues of the second long folding edge, the two first convex tongues are extruded to the position below the opposite first long folding edge, one second convex tongue of the first long folding edge is positioned between the two first convex tongues, the second convex tongue is sunken due to the deformation of the second long folding edge, the third driving cylinder continues to drive the substrate to move downwards for at least 1.5cm at the moment, the two first convex tongues continue to be pressed downwards, the central position of the second long folding edge is pressed downwards to generate a recess, the second convex tongue falls into the recess, and the central position of the second long folding edge is pressed above the second convex tongue after the second long folding edge is reset;
therefore, compared with the prior art, the automatic assembly of the first tongue and the second tongue can be realized, and the working efficiency is effectively improved on the premise of low cost.
Example two:
referring to fig. 2 to fig. 3, there is shown an automatic bottom edge folding device for an outer case of a notebook computer according to a second embodiment of the present invention, which further adopts the following technical solutions as improvements on the basis of the above embodiments: the first mounting base frame 12 is an L-shaped base frame, the first end 141 and the second end 142 are perpendicular to each other, the first flap 15 is a U-shaped plate body, two folded edges of the first flap are hinged to two opposite ends of the third end 143, and an end portion of the first flap 15 has a first tapered plate end 151. Through the arrangement of the structure, the long folding edge of the carton can be stably folded.
Example three:
referring to fig. 2 to 3, there is shown an automatic bottom edge folding device for an outer case of a notebook computer according to a third embodiment of the present invention, and on the basis of the third embodiment, the present embodiment further provides the following technical solutions as improvements: the second mounting base frame 32 is an L-shaped base frame, the fourth end 341 and the fifth end 342 are perpendicular to each other, the second folding plate 35 is a U-shaped plate body, two folding edges of the second folding plate are hinged to two opposite ends of the sixth end 343, and the end of the second folding plate 35 is provided with a second tapered plate end 351. Through the arrangement of the structure, the short folding edges of the carton can be stably folded.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (9)
1. The utility model provides an automatic hem device of bottom of case of notebook computer outer container which characterized in that includes:
the symmetrical two long-edge folding mechanism (1) is used for folding two long edges (21) of a carton (2) from the two long edges (21), the long-edge folding mechanism (1) comprises at least one long-edge folding unit (11), the long-edge folding unit (11) comprises a first mounting base frame (12), the first mounting base frame (12) is arranged along the height direction of the carton (2), a first driving cylinder (13) parallel to the first mounting base frame (12) is fixedly mounted on the first mounting base frame (12), the end part of a driving shaft (131) of the first driving cylinder (13) is hinged to a first end (141) of a first folding block (14), the first folding block (14) is obliquely arranged, and a second end (142) of the first folding block (14) is hinged to the end part of the first mounting base frame (12), the first end (141) and the second end (142) are positioned on the same side, a first folding plate (15) is hinged to a third end (143) of the first folding block (14) which is equivalent to the first end (141), and the first folding plate (15) presses the long folded edge (21) downwards;
the symmetrical two short folded edge folding mechanisms (3) respectively fold the two short folded edges (22) from the two short folded edges (22) of the carton (2), each short folded edge folding mechanism (3) comprises at least one short folded edge folding unit (31), each short folded edge folding unit (31) comprises a second mounting base frame (32), each second mounting base frame (32) is arranged along the length direction of the carton (2), a second driving cylinder (33) parallel to the second mounting base frame (32) is fixedly mounted on each second mounting base frame (32), the end part of a driving shaft (331) of each second driving cylinder (33) is hinged to the fourth end (341) of each second folded block (34), each second folded block (34) is obliquely arranged, and the fifth end (342) of each second folded block (34) is hinged to the end part of each second mounting base frame (32), the fourth end (341) and the fifth end (342) are positioned on the same side, a second turnover plate (35) is hinged to a sixth end (343) of the second turnover block (34) which is equivalent to the fourth end (341), and the second turnover plate (35) presses the short folded edge (22) downwards;
the tongue pressing mechanism (4) is used for pressing down two first tongues (23) of the carton (2) from a position right above the carton (2), the tongue pressing mechanism (4) comprises a base plate (41) which is arranged along the length direction of the carton (2), the base plate (41) is connected to a frame in a sliding mode, two third driving cylinders (42) are arranged on the top surface of the base plate (41), the two third driving cylinders (42) are respectively located at two opposite edges of the base plate (41), two pressing plates (43) are arranged on the bottom surface of the base plate (41), the pressing plates (43) are perpendicular to the base plate (41), the two pressing plates (43) are located in a plane space between the two third driving cylinders (42), and the pressing plates (43) press down the first tongues (23).
2. The automatic bottom edge folding device for the outer box of the notebook computer as claimed in claim 1, wherein the first mounting base frame (12) is an L-shaped base frame.
3. The automatic bottom edge folding device for the outer case of the notebook computer as claimed in claim 1, wherein the first end (141) and the second end (142) are perpendicular.
4. The automatic bottom folding device for the outer box of the notebook computer as claimed in claim 1 or 3, wherein the first folding plate (15) is a U-shaped plate body, two folding edges of which are hinged to two opposite ends of the third end (143), and the end of the first folding plate (15) is provided with a first tapered plate end (151).
5. The automatic bottom edge folding device for the outer box of the notebook computer as claimed in claim 1, wherein the second mounting base frame (32) is an L-shaped base frame.
6. The automatic bottom edge folding device for the outer case of the notebook computer as claimed in claim 1, wherein the fourth end (341) and the fifth end (342) are perpendicular.
7. The automatic bottom edge folding device for the outer box of the notebook computer as claimed in claim 1 or 6, wherein the second folding plate (35) is a U-shaped plate body, two folding edges of which are hinged to two opposite ends of the sixth end (343), and the end of the second folding plate (35) is provided with a second cone plate end (351).
8. The automatic bottom edge folding device for the outer box of the notebook computer is characterized in that the pressing plate (43) is a rectangular plate body.
9. The folding method of the automatic bottom folding device for the outer box of the notebook computer according to any one of claims 1 to 8, characterized by comprising the following steps:
1) starting a second driving air cylinder (33), driving the second folding block (34) to swing downwards by the second driving air cylinder (33), stopping the second folding block (34) after swinging for a preset angle of 45 degrees, pressing the short folding edge (22) of the carton (2) downwards by the second folding block (34), and folding the short folding edge (22);
2) starting a first driving air cylinder (13), driving the first folding block (14) to swing downwards by the first driving air cylinder (13), stopping after the first folding block (14) swings for a preset 35 degrees, pressing a long folding edge (21) of the carton (2) downwards by the first folding block (14), and folding the long folding edge (21) into and pressing the short folding edge (22);
3) activating a third actuating cylinder (42), wherein the third actuating cylinder (42) drives the base plate (41) downward, two pressing plates (43) on the bottom surface of the base plate (41) press down two first tongues (23) of a second long folding edge (212), the two first tongues (23) are squeezed under the opposite first long folding edge (211), a second tongue (213) of the first long folding edge (211) is positioned between the two first tongues (23), the second tongue (213) is recessed due to the deformation of the second long folding edge (212), the third actuating cylinder (42) continues to drive the base plate (41) downward for at least 1.5cm, the two first tongues (23) continue to be pressed down, the central position of the second long folding edge (212) is pressed down to generate a recess, the second tongue (213) falls into the recess, and the second long folding edge (212) is reset, the center of the second long folding edge (212) is pressed above the second tongue (213) to complete the pressing of the tongue part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910850020.0A CN110815936A (en) | 2019-09-09 | 2019-09-09 | Automatic edge folding device and edge folding method for bottom of outer box of notebook computer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910850020.0A CN110815936A (en) | 2019-09-09 | 2019-09-09 | Automatic edge folding device and edge folding method for bottom of outer box of notebook computer |
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| CN201910850020.0A Pending CN110815936A (en) | 2019-09-09 | 2019-09-09 | Automatic edge folding device and edge folding method for bottom of outer box of notebook computer |
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| CN109483945A (en) * | 2018-11-28 | 2019-03-19 | 菏泽高新区德源医药科技有限公司 | A kind of drug paste packing box automatic folding device |
| CN109514916A (en) * | 2018-12-19 | 2019-03-26 | 重庆仨睿包装印务有限公司 | A kind of carton automatic folding device and case binder |
| CN111186169A (en) * | 2020-01-10 | 2020-05-22 | 温州高晟机械有限公司 | Folding plate type box making machine |
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Application publication date: 20200221 |