CN113022976A - Carton flip folding device and method - Google Patents
Carton flip folding device and method Download PDFInfo
- Publication number
- CN113022976A CN113022976A CN202110353208.1A CN202110353208A CN113022976A CN 113022976 A CN113022976 A CN 113022976A CN 202110353208 A CN202110353208 A CN 202110353208A CN 113022976 A CN113022976 A CN 113022976A
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- folding
- lifting
- rod
- frame
- carton
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B7/00—Closing containers or receptacles after filling
- B65B7/16—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons
- B65B7/20—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons by folding-down preformed flaps
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B43/00—Forming, feeding, opening or setting-up containers or receptacles in association with packaging
- B65B43/42—Feeding or positioning bags, boxes, or cartons in the distended, opened, or set-up state; Feeding preformed rigid containers, e.g. tins, capsules, glass tubes, glasses, to the packaging position; Locating containers or receptacles at the filling position; Supporting containers or receptacles during the filling operation
- B65B43/52—Feeding or positioning bags, boxes, or cartons in the distended, opened, or set-up state; Feeding preformed rigid containers, e.g. tins, capsules, glass tubes, glasses, to the packaging position; Locating containers or receptacles at the filling position; Supporting containers or receptacles during the filling operation using roller-ways or endless conveyors
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Making Paper Articles (AREA)
Abstract
The invention discloses a paper box flip folding device and a method, wherein the device comprises a rack, wherein a lifting mechanism is arranged on the rack through a mounting plate, and a folding mechanism is connected and arranged below the lifting mechanism; the folding mechanism comprises a lifting folding frame fixedly connected with the bottom of the lifting mechanism, a guide plate is fixedly connected below the lifting folding frame, and a folding rod extending outwards is arranged on the outer edge of the lifting folding frame; when the lifting mechanism descends, the guide plate moves towards the inner direction of the carton box, and the lifting folding frame drives the folding rod to move downwards, so that the carton turnover cover is turned over towards the outer wall of the carton box. Has the advantages that: the device can simultaneously complete the folding of the two pairs of flip covers of the carton, has simple structure and concise action, realizes unmanned operation, improves the production efficiency of enterprises, and effectively assists the automatic upgrading of the tobacco enterprise production line; can carry out organic with the current production facility of pre-compaction baling press and combine, promote the automation in the tobacco production process.
Description
Technical Field
The invention belongs to the technical field of automatic forming of cartons in the tobacco industry, relates to a process for arranging cartons before boxing, prepressing and packaging, and particularly relates to a device and a method for folding a turnover cover of the cartons.
Background
On threshing redrying line in tobacco manufacturing enterprise, the partial carton before transporting the pre-compaction baling press can appear that carton flip erects even the condition of carton flip tilt inwards, can influence the carton and send into the pre-compaction machine station, can fold the carton side when workbin whereabouts insert the carton simultaneously to lead to the carton by fracturing, tear, and then influence subsequent vanning packing process.
The traditional solution is to fold down and fasten the paper box flip manually by one to two persons before the prepressing packer. The mode has high labor cost and low automation degree, which is not matched with the requirement of constructing a high-efficiency automatic production line, and at present, no automatic application case exists in domestic tobacco enterprises.
The chinese utility model patent (application No. 202020441158.3) discloses a carton spreading device that carton was turned over and is turned over, and the device needs to use the clip to hold the case lid additional when the vanning, then carries out manual vanning, can't cooperate the work of pre-compaction baling press, and inefficiency, can't be applicable to the production of industrialization.
Chinese utility model patent (201922477454.9) discloses a carton apron supports a device that turns over a book, uncaps to the side, pushes article in the box again, and the device also can't cooperate with the pre-compaction baling press, can't satisfy applicable needs.
At present, no related mechanical equipment can meet the use requirement of arranging the box cover before boxing pre-pressing packaging, the labor intensity is reduced aiming at the matching pre-pressing packaging machine and the production efficiency, the labor cost is reduced, and a box cover arranging device before boxing pre-pressing packaging is urgently needed.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a paper box flip folding device.
In order to achieve the purpose, the invention adopts the following technical scheme to realize the purpose:
a paper box flip folding device comprises a rack, wherein a lifting mechanism is arranged on the rack through a mounting plate, and a folding mechanism is connected and arranged below the lifting mechanism;
the folding mechanism comprises a lifting folding frame fixedly connected with the bottom of the lifting mechanism, a guide plate is fixedly connected below the lifting folding frame, and a folding rod extending outwards is arranged on the outer edge of the lifting folding frame;
when the lifting mechanism descends, the guide plate moves towards the inner direction of the carton box, and the lifting folding frame drives the folding rod to move downwards, so that the carton turnover cover is turned over towards the outer wall of the carton box.
Furthermore, the folding mechanism also comprises a folding driving mechanism, one end of the folding driving mechanism is fixed on the lifting mechanism, the other end of the folding driving mechanism is connected with a folding rod, the folding rod is movably arranged on the lifting folding frame through a mounting seat, and one end of the folding rod is movably connected with the folding driving mechanism;
when the folding driving mechanism stretches, the folding rod rotates by taking the mounting seat as an axis.
Furthermore, the lifting folding frame is of a square frame structure and is consistent with the shape of the carton, and the folding rods are arranged on each frame of the lifting folding frame.
Furthermore, a cross beam connected with the frame is arranged in the middle of the lifting folding frame, an installation support is fixedly installed in the center of the cross beam, and the upper part of the installation support is fixedly connected with a movable part of the lifting driving mechanism; the two sides of the mounting support are symmetrically provided with lifting guide rod connecting blocks, the bottom ends of the lifting guide rods are fixed on the lifting folding frame through the lifting guide rod connecting blocks, and the guide rods are perpendicular to the lifting folding frame.
Further, the pole of folding a page contains montant A and montant B, and montant A and montant B one end are through being connected with the horizontal pole, montant A and montant B parallel arrangement, montant A is longer than montant B, montant B's the other end passes through the connecting rod with montant A fixed, and the connecting rod passes montant A and montant B, and the protruding and mount pad swing joint in the montant A of both ends salient and the montant B outside, montant A's the other end is connected the guide bar of folding a page and is connected with actuating mechanism folds a page through the lift guide bar.
Furthermore, the lifting mechanism comprises a lifting driving mechanism fixedly mounted on the mounting plate, and a movable part of the lifting driving mechanism penetrates through the mounting plate and is fixedly connected with the lifting folding frame.
Furthermore, the lifting mechanism further comprises a lifting guide rod which penetrates through the mounting plate and is fixedly connected with the lifting folding frame, and when the lifting mechanism moves, the lifting guide rod moves up and down through a guide hole in the mounting plate.
Further, the lifting mechanism further comprises a square connecting support, one end of the lifting guide rod 22 is fixedly connected to the connecting support which is positioned in the center of the lifting folding frame and close to the inner side positions of the two corresponding frames of the lifting guide rod, and the plane of the connecting support is perpendicular to the lifting guide rod; one end of the folding driving mechanism is fixed on the connecting bracket; the fixed ends of the folding driving mechanisms are fixed on the other two opposite side frames of the connecting support through connecting parts, and each side frame is used for fixing two adjacent folding driving mechanisms, so that the folding driving mechanisms are parallel to the guide rods and are perpendicular to the plane of the connecting support.
Further, the folding driving mechanism and the lifting driving mechanism are any one of an air cylinder, an electric cylinder and a gear rack.
Still another object of the present invention is to provide a flip folding method using the said carton flip folding device, comprising the steps of:
s0. mounting the paper box flip folding device on the paper box conveying mechanism, and adjusting the device to make the device enter a standby state;
s1, the paper box is conveyed in place
Conveying the carton to the position below the rack and right below the folding mechanism;
s2, lifting and folding frame in place
The lifting mechanism drives the folding mechanism to move downwards until the folding mechanism reaches the horizontal position of the carton inlet;
s3. turn over a carton flip
The folding mechanism drives the folding rod to rotate through the folding driving mechanism, the folding rod drives the carton turnover cover to be turned over and pressed downwards below the plane of the carton inlet when rotating outwards, and then the state of the folding rod is kept for pressure maintaining;
s4, resetting the device
After pressure maintaining is completed, the lifting mechanism returns to drive the lifting folding frame to be recovered, and then the folding mechanism driving mechanism returns to drive the folding rod to rotate, so that one-time automatic folding of the carton turnover cover is completed.
The working principle is as follows:
the lifting folding frame is driven by the lifting mechanism to move up and down, so that the folding mechanism on the lifting folding frame presses the vertical carton cover page to the periphery of the carton body in the descending process, and the carton cover page is folded and opened to the periphery of the carton body.
Through flip folding mechanism, can accomplish simultaneously turning over two pairs of flaps of carton.
Has the advantages that:
the automatic folding device can simultaneously complete folding of two pairs of flip covers of the carton, has a simple structure and concise actions, automatically completes the action of folding the carton cover, realizes unmanned operation, improves the production efficiency of enterprises, and effectively assists the automatic upgrading of the production line of tobacco enterprises.
The invention can be organically combined with the existing production equipment of the prepressing packer, and improves the automatic production line in the tobacco production process.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
FIG. 2 is a schematic side view of the present invention.
Fig. 3 is a schematic view of a frame structure.
FIG. 4 is a schematic view of the connection of the lifting folding frame and the connecting bracket with the guide rod.
Fig. 5 is a schematic view showing the structure of the folding driving mechanism and the folding lever.
Fig. 6 is a schematic structural view of the lifting drive mechanism.
Fig. 7 is an operation diagram of the downward-pressing flip cover.
Reference numerals:
the folding device comprises a frame 1, an installation plate 11, a guide hole 111, an installation hole 112, a lifting mechanism 2, a lifting driving mechanism 21, a lifting guide rod 22, a connecting support 23, a connecting part 231, a folding mechanism 3, a lifting folding frame 31, a guide plate 32, a folding rod 33, a vertical rod A331, a vertical rod B332, a cross rod 333, a connecting rod 334, a folding guide rod connecting block 335, a folding driving mechanism 34, a folding guide rod 341, an installation seat 35, a lifting guide rod connecting block 36, an installation support 37, a carton 4 and a conveyor 5.
Detailed Description
The following detailed description will be made with reference to specific embodiments and accompanying drawings, but the present invention is not limited to the following embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention. In the following description, for the purpose of clearly illustrating the structure and operation of the present invention, reference will be made to the accompanying drawings by way of directional terms, but terms such as "front", "rear", "left", "right", "up", "down", etc. should be construed as words of convenience and should not be construed as limiting terms.
Examples
As shown in fig. 1-7, a paper box 4 flip folding device, which can be mounted on a paper box 4 conveyor 5 before a tobacco leaf pre-pressing and packaging machine, comprises a frame 1, wherein a lifting mechanism 2 is mounted on the frame 1 through a mounting plate 11, and a folding mechanism 3 is connected and mounted below the lifting mechanism 2;
the frame 1 comprises 4 legs fixed on the ground and a top support, and an internal carton 4 conveyor 5 penetrates between the two legs. The top support on install the crossbeam, two crossbeam parallel arrangement, mounting panel 11 fixed mounting are on the crossbeam, mounting panel 11 central authorities have the mounting hole 112 that supplies lift actuating mechanism 21 movable part to pass through, mounting panel 11's through-hole both sides have still set up the guiding hole 111 that supplies the guide arm to pass through and play the guide effect. The fixed end of the lifting drive mechanism 21 is fixed above the mounting hole 112 of the mounting plate 11.
The lifting mechanism 2 further comprises a lifting guide rod 22 which penetrates through the mounting plate 11 and is fixedly connected with the lifting folding frame 31, and when the lifting mechanism 2 moves, the lifting guide rod 22 moves up and down through a guide hole 111 in the mounting plate 11.
The lifting mechanism 2 further comprises a connecting bracket 23 in a square frame shape, and the lifting guide rod 22 is mounted at the position of the connecting bracket 23, which is located at the center of the lifting folding frame 31 and close to the inner sides of two corresponding frames of the lifting guide rod 22. The connecting bracket 23 is movable up and down together with the elevation guide bar 22. On the other two opposite side frames of the connecting support 23, the fixed ends of the folding driving mechanisms 34 are fixed on the side frames through connecting parts 231, and each side frame fixes two adjacent folding driving mechanisms 34, so that the folding driving mechanisms 34 are parallel to the guide rods and perpendicular to the plane of the connecting support 23.
The folding mechanism 3 comprises an elevating folding frame 31, the shape of the elevating folding frame 31 is consistent with that of the carton 4, the size of the elevating folding frame 31 is smaller than that of the entrance of the carton 4, the elevating folding frame 31 is of a square frame structure, a cross beam connected with a frame is arranged in the middle of the elevating folding frame, an installation support 37 is fixedly installed in the center of the cross beam, and the upper part of the installation support 37 is fixedly connected with a movable part of the elevating driving mechanism 21; the two sides of the mounting support 37 are symmetrically provided with lifting guide rod connecting blocks 36, the bottom end of the lifting guide rod 22 is fixed on the lifting folding frame 31 through the lifting guide rod connecting blocks 36, and the guide rod is perpendicular to the lifting folding frame 31.
When the lifting driving mechanism 21 moves up and down, the lifting folding frame 31 is driven to move up and down.
A guide plate 32 is fixedly arranged below the lifting folding frame 31, and the shape and the size of the guide plate 32 are consistent with those of the lifting folding frame 31.
The folding mechanism 3 further comprises a folding rod 33 arranged in the center of each frame of the lifting folding frame 31, the folding rod 33 is movably connected with the mounting seat 35, the mounting seat 35 serves as a boundary, one end of the folding rod 33 is located on the outer edge of the lifting folding frame 31, the longest position of the folding rod 33 exceeds the boundary of the inlet of the carton 4, and the farthest end of the folding rod 33 can be enabled to be overlapped with the turnover cover of the carton 4 as far as possible when the folding rod is pressed downwards. The folding rod 33 can rotate around the mounting seat 35, so that the folding rod 33 can move upwards and downwards to fold the cover of the carton 4. The part of the folding rod 33 located inside the lifting folding frame 31 is connected with the movable part of the driving mechanism.
The folding mechanism 3 further comprises a folding driving mechanism 34, one end of the folding driving mechanism 34 is fixed on the connecting support 23 of the lifting mechanism 2, and the other end of the folding driving mechanism 34 is movably connected with a folding rod 33;
when the folding driving mechanism 34 extends and contracts, the folding rod 33 can rotate around the mounting seat 35, so that the other end of the folding rod 33 can move up and down.
When the lifting mechanism 2 descends, the guide plate 32 moves towards the inside of the carton 4, and the lifting folding frame 31 drives the folding rod 33 to move downwards, so that the turnover cover of the carton 4 is turned towards the outer wall of the carton 4.
The folding mechanism 3 can be of a plate type, a frame type and other structures capable of pressing the box cover.
Preferably, the folding rod 33 includes a vertical rod a331 and a vertical rod B332, one end of the vertical rod a331 and one end of the vertical rod B332 are connected with a cross rod 333, the vertical rod a331 and the vertical rod B332 are arranged in parallel, the vertical rod a331 is longer than the vertical rod B332, the other end of the vertical rod B332 is fixed with the vertical rod a331 through a connecting rod 334, the connecting rod 334 penetrates through the vertical rod a331 and the vertical rod B332, protrusions protruding out of the vertical rod a331 and the vertical rod B332 at two ends are movably connected with the mounting seat 35, and the other end of the vertical rod a331 is connected with the folding guide rod 341 through the lifting guide rod 335 and is connected with the folding.
The folding driving mechanism 34 and the lifting driving mechanism 21 may be any one of an air cylinder, an electric cylinder, and a rack and pinion.
The working mode is as follows:
firstly, a paper box 4 flip folding device is arranged on a paper box 4 conveyor 5 mechanism, and then the device is adjusted to enable the device to enter a standby state;
s1, the paper box 4 is conveyed in place
Conveying the paper box 4 to the position below the frame 1 and right below the folding mechanism 3;
s2, the lifting folding frame 31 is in place
The lifting mechanism 2 drives the folding mechanism 3 to move downwards until reaching the horizontal position of the inlet of the carton 4;
s3, folding carton 4 flip cover
The folding mechanism 3 drives the folding rod 33 to rotate through the folding driving mechanism 34, when the folding rod 33 rotates outwards, the folding cover of the paper box 4 is driven to be folded and pressed downwards below the inlet plane of the paper box 4, and then the state of the folding rod 33 is kept for pressure maintaining;
s4, resetting the device
After the pressure maintaining is finished, firstly, the lifting mechanism 2 returns to drive the lifting folding frame 31 to be recovered, then the driving mechanism of the folding mechanism 3 returns to drive the folding rod 33 to rotate, and the automatic folding of the turnover cover of the carton 4 is finished.
Claims (10)
1. A paper box flip folding device comprises a rack (1) and is characterized in that a lifting mechanism (2) is mounted on the rack (1) through a mounting plate (11), and a folding mechanism (3) is connected and mounted below the lifting mechanism (2);
the folding mechanism (3) comprises a lifting folding frame (31) fixedly connected with the bottom of the lifting mechanism (2), a guide plate (32) is fixedly connected below the lifting folding frame (31), and a folding rod (33) extending outwards is mounted on the outer edge of the lifting folding frame (31);
when the lifting mechanism (2) descends, the guide plate (32) moves towards the inner direction of the paper box (4), and the lifting folding frame (31) drives the folding rod (33) to move downwards, so that the turnover cover of the paper box (4) is folded towards the outer wall of the paper box (4).
2. The flip folding device according to claim 1, wherein the folding mechanism (3) further comprises a folding driving mechanism (34), one end of the folding driving mechanism (34) is fixed on the lifting mechanism (2), the other end is connected with a folding rod (33), the folding rod (33) is movably mounted on the lifting folding frame (31) through a mounting seat (35), and one end of the folding rod (33) is movably connected with the folding driving mechanism (34);
when the folding driving mechanism (34) extends and contracts, the folding rod (33) rotates by taking the mounting seat (35) as an axis.
3. The flap folder according to claim 2, wherein the elevation folding frame (31) has a square frame structure and conforms to the shape of the carton (4), and the folding bar (33) is provided on each side frame of the elevation folding frame (31).
4. The flip folding device according to claim 2, wherein a cross beam connected with the frame is arranged in the middle of the lifting folding frame (31), a mounting support (37) is fixedly arranged in the center of the cross beam, and the upper part of the mounting support (37) is fixedly connected with a movable part of the lifting driving mechanism (21); the two sides of the mounting support (37) are symmetrically provided with lifting guide rod connecting blocks (36), the bottom end of the lifting guide rod (22) is fixed on the lifting folding frame (31) through the lifting guide rod connecting blocks (36), and the guide rod is perpendicular to the lifting folding frame (31).
5. The flip folding device according to claim 2, wherein the folding rod (33) comprises a vertical rod a (331) and a vertical rod B (332), one end of the vertical rod a (331) and one end of the vertical rod B (332) are connected with a cross rod (333), the vertical rod a (331) and the vertical rod B (332) are arranged in parallel, the vertical rod a (331) is longer than the vertical rod B (332), the other end of the vertical rod B (332) is fixed with the vertical rod a (331) through a connecting rod (334), the connecting rod (334) passes through the vertical rod a (331) and the vertical rod B (332), a protrusion with two ends protruding outside the vertical rod a (331) and the vertical rod B (332) is movably connected with the mounting seat (35), and the other end of the vertical rod a (331) is connected with the folding guide rod (341) through the lifting guide rod (335) and is connected with the folding driving mechanism (34).
6. A flap folder according to any one of claims 2-5, characterized in that the lifting mechanism (2) comprises a lifting driving mechanism (21) fixedly mounted on the mounting plate (11), and the movable part of the lifting driving mechanism (21) is fixedly connected with the lifting folding frame (31) through the mounting plate (11).
7. The flip folding device according to claim 6, wherein the lifting mechanism (2) further comprises a lifting guide rod (22) fixedly connected to the lifting folding frame (31) through the mounting plate (11), and the lifting guide rod (22) moves up and down through a guide hole (111) of the mounting plate (11) when the lifting mechanism (2) moves.
8. The flip folding device according to claim 7, wherein the lifting mechanism (2) further comprises a square frame-shaped connecting bracket (23) fixedly connected to one end of the lifting guide bar (22) at a position inside the connecting bracket (23) located at the center of the lifting folding frame (31) and near the corresponding two side frames of the lifting guide bar (22), the plane of the connecting bracket (23) being perpendicular to the lifting guide bar (22); one end of the folding driving mechanism (34) is fixed on the connecting bracket (23); the fixed ends of the folding driving mechanisms (34) are fixed on the other two opposite side frames of the connecting support (23) through connecting parts (231), and each side frame is used for fixing two adjacent folding driving mechanisms (34), so that the folding driving mechanisms (34) are parallel to the guide rods and are perpendicular to the plane of the connecting support (23).
9. The flip folding device according to any one of claims 2 to 5, wherein the folding driving mechanism (34) and the elevation driving mechanism (21) are any one of a cylinder, an electric cylinder, and a rack and pinion.
10. The method for folding a flip of a carton for use in the flip folding device of any one of claims 1 to 9, comprising the steps of:
s0. the paper box (4) flip folding device is installed on the paper box conveying mechanism, and then the device is adjusted to make the device enter a standby state;
s1, the paper box (4) is conveyed in place
Conveying the carton (4) to the position below the rack (1) and right below the folding mechanism (3);
s2, the lifting folding frame (31) is in place
The lifting mechanism (2) drives the folding mechanism (3) to move downwards until the folding mechanism reaches the horizontal position of the inlet of the carton (4);
s3, turning cover of folding carton (4)
The folding mechanism (3) drives the folding rod (33) to rotate through the folding driving mechanism (34), when the folding rod (33) rotates outwards, the paper box (4) is driven to be folded and folded downwards to be pressed below the inlet plane of the paper box (4), and then the state of the folding rod (33) is kept for pressure maintaining;
s4, resetting the device
After pressure maintaining is finished, the lifting mechanism (2) returns to drive the lifting folding frame (31) to be recovered, then the folding mechanism (3) drives the folding rod (33) to rotate by returning, and one-time automatic folding of the turnover cover of the carton (4) is finished.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110353208.1A CN113022976A (en) | 2021-04-01 | 2021-04-01 | Carton flip folding device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110353208.1A CN113022976A (en) | 2021-04-01 | 2021-04-01 | Carton flip folding device and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113022976A true CN113022976A (en) | 2021-06-25 |
Family
ID=76453587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110353208.1A Pending CN113022976A (en) | 2021-04-01 | 2021-04-01 | Carton flip folding device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113022976A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113978025A (en) * | 2021-11-05 | 2022-01-28 | 云南昆船烟草设备有限公司 | Carton nesting forming method and system |
-
2021
- 2021-04-01 CN CN202110353208.1A patent/CN113022976A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113978025A (en) * | 2021-11-05 | 2022-01-28 | 云南昆船烟草设备有限公司 | Carton nesting forming method and system |
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