CN214452291U - Bagging equipment with open bag lock material structure - Google Patents
Bagging equipment with open bag lock material structure Download PDFInfo
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- CN214452291U CN214452291U CN202023269315.6U CN202023269315U CN214452291U CN 214452291 U CN214452291 U CN 214452291U CN 202023269315 U CN202023269315 U CN 202023269315U CN 214452291 U CN214452291 U CN 214452291U
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- 239000000463 material Substances 0.000 title claims abstract description 104
- 238000004806 packaging method and process Methods 0.000 claims abstract description 55
- 238000007789 sealing Methods 0.000 claims abstract description 50
- 241000252254 Catostomidae Species 0.000 claims abstract description 12
- 230000007246 mechanism Effects 0.000 claims description 25
- 238000003825 pressing Methods 0.000 claims description 14
- 238000003860 storage Methods 0.000 claims description 10
- 238000007599 discharging Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 241000196324 Embryophyta Species 0.000 abstract description 2
- 238000012856 packing Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 4
- 230000006978 adaptation Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000005022 packaging material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 239000013072 incoming material Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
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Abstract
The application discloses bagging equipment with a bag opening and locking structure, which belongs to the field of food packaging machinery and comprises a bag feeding unit, a bag opening and sealing unit and a feeding unit, wherein the bag feeding unit, the bag opening and sealing unit and the feeding unit are arranged on a support at the upper end of a workbench of a rack; the bag opening and sealing unit comprises a bag opening part and a bag sealing part which are arranged on the rack, and the bag opening part comprises bag opening vacuum suckers which are arranged at intervals up and down; the bag opening vacuum sucker and the clamping part are distributed in a rectangular shape; the bag sealing part further comprises a material locking block arranged between the two clamping parts and an object supporting plate opposite to the material locking block, and the material locking block and the object supporting plate move in the same direction with the bag opening vacuum chuck. The utility model provides a sack filling plant with open bag lock material structure can improve production efficiency.
Description
Technical Field
The application relates to the field of food packaging machinery, in particular to bagging equipment with a bag opening and material locking structure.
Background
One commonly used method for food packaging is a double-layer structure of an inner bag and an outer bag, i.e., food is filled into the inner bag, then the inner bag is inserted into the outer bag, and finally the mouth of the outer bag is straightened for sealing. In the process, if manual work is adopted, a large amount of manpower is consumed, and the production efficiency is difficult to improve. Therefore, in the prior art, as chinese patent application No. 201621264130.7 discloses a filling and sealing device with a photoelectric intelligent robot, it drives a bag clamping mechanism to move back and forth horizontally through a program automatic control cylinder, the bag clamping mechanism is a plurality of that are arranged side by side, when the bag clamping mechanism supports the bag and moves horizontally to the position right in front of the sealing mechanism and the bag opening mechanism, the bag opening mechanism opens the food bag, and after the food bag is opened, the material of the material pushing mechanism is pushed into the food bag to complete the filling. However, in the actual working process, because the plastic packaging bag has flexibility and certain elasticity, when the inner bag is pushed into the outer packaging bag by the pushing device and retreats, because the inner bag loses the limitation of the pushing device, the inner bag can move forward for a certain distance, so that the inner bag can move to the sealing area of the outer packaging bag at a certain probability, and under the condition, the inner bag can be bonded with the outer packaging bag during subsequent heat sealing, thereby affecting the packaging quality.
SUMMERY OF THE UTILITY MODEL
The utility model provides a to above problem, provide a sack filling plant with open bag lock material structure, can improve production efficiency.
In order to achieve the purpose, the technical scheme adopted by the application is that the bagging equipment with the bag opening and locking structure comprises a bag feeding unit, a bag opening and sealing unit and a feeding unit which are arranged on a rack, wherein the bag feeding unit is used for feeding the packaging bags from a storage position to the bag opening and sealing unit, the packaging bags are opened by the bag opening and sealing unit, then the feeding unit is used for pushing the inner bags into the packaging bags for waiting for the packaging materials, and then the bag opening and sealing unit is used for straightening the bag openings of the packaging bags, so that the bag openings of the packaging bags are sealed to facilitate subsequent bag sealing; the bag opening and sealing unit is arranged on a support at the upper end of a rack workbench, the bag feeding unit and the feeding unit are respectively arranged on two sides of the support, and the support is provided with a through hole for passing materials; the bag opening and sealing unit comprises a bag opening part and a bag sealing part which are arranged on the rack, the bag opening part comprises bag opening vacuum suckers which are arranged at intervals up and down, the bag opening vacuum suckers move along the vertical direction, and when the bag opening vacuum suckers adsorbed on the front side and the back side of the packaging bag move in the reverse direction, the bag opening of the packaging bag can be opened; the bag opening and sealing device comprises a bag opening and sealing unit, a bag opening vacuum chuck and a connecting part, wherein the bag opening and sealing unit comprises a bag opening and sealing part and a bag sealing part, the bag opening and sealing part is arranged on the bag opening and sealing unit, the bag opening and sealing part is arranged on the bag opening and sealing part at left and right intervals, when a packaging bag is conveyed to the bag opening and sealing unit by the bag conveying unit, the two side edges of the packaging bag are fixed by the clamping part so as to facilitate filling and other operations, the bag opening vacuum chuck and the clamping part are distributed in a rectangular shape, the width of the packaging bag can be changed when the bag opening of the packaging bag is opened or straightened, the clamping part can be made to follow the change of the width of the packaging bag, the clamping part is arranged on the connecting part, the connecting part is hinged on a support, and the connecting part is linked with the bag opening vacuum chuck through the packaging bag; the bag sealing part further comprises a locking material block arranged between the two clamping parts and a material supporting plate opposite to the locking material block, the locking material block and the material supporting plate move in the same direction with the bag opening vacuum chuck, and after filling is completed, the locking material block and the material supporting plate move in opposite directions before filling equipment does not withdraw from the packaging bag so as to fix the inner bag from the outer side of the packaging bag, then the filling equipment withdraws, and at the moment, the inner bag cannot move to the sealing area of the packaging bag.
Further, for waiting for the packing material to push the wrapping bag with the inner bag, the pay-off unit includes the material rack, be provided with the passageway that the material got into on the material rack, be provided with material promotion portion on the material rack, the outlet side of material rack is provided with props the bagging structure, prop the bagging structure and include along through-hole endwise slip's push plate and set up on the push plate and be used for inserting the guiding mechanism of wrapping bag, guiding mechanism's external diameter is adjustable.
Further, for promoting the inner bag, the material pushing part comprises a feeding plate arranged in the material placing frame and a material pushing unit used for driving the feeding plate to move along the axial direction of the through hole.
Furthermore, because of guiding mechanism can lateral shifting, for making the inner bag enter into guiding mechanism more smoothly, the outlet side of material rack is provided with the discharging pipe with guiding mechanism looks adaptation.
Furthermore, in order to open the packaging bag, the guide mechanism is formed by enclosing a group of transverse material guide plates arranged at intervals from top to bottom and a group of vertical material guide plates arranged at intervals from left to right, and at least one group of transverse material guide plates and vertical material guide plates are adjustable in distance.
Furthermore, the transverse material guide plate is fixedly arranged on the pushing plate, and the vertical material guide plate is connected with the bag opening driving unit on the pushing plate.
Further, for avoiding the inner bag to wait for the packing material because of not placing levelly and smoothly, the export that leads to unable material rack is released, material rack upper end is provided with presses a bag drive unit and presses a bag portion, press a bag portion along vertical direction reciprocating sliding under pressing a bag drive unit's promotion.
Furthermore, in order to increase the contact surface of the locking block and the packaging bag, the side, opposite to the object supporting plate, of the locking block is provided with an inclined surface.
Further, for carrying out the automatic bag that send, send a bag unit to include the open wrapping bag storage rack of lower extreme, wrapping bag storage rack lower extreme is provided with along through-hole endwise slip's support, the support upper end is provided with the lift seat of following vertical direction motion, lift seat upper end is provided with and sends a bag vacuum chuck.
Furthermore, in order to avoid the leakage of the packaging bag, the projection areas of the bag opening vacuum chucks arranged at intervals up and down on the vertical projection plane are not overlapped.
The beneficial effect of this application: this device simple structure, the inner bag that enters into the material rack etc. is pushed into the wrapping bag by the automation to accomplish the filling, reduce artificial intervention, improve production efficiency.
1. The inner bag is sent into the material placing rack, and the bag pressing part moves downwards, so that the inner bag is not inclined, and the inner bag can be pushed out from the material placing rack.
2. The outer diameter of the guide mechanism is increased after the guide mechanism is inserted into the packaging bag, so that the bag opening of the packaging bag is opened, and a way for the material to slide is generated at the same time, so that the material can enter the packaging bag, production faults are avoided, and the production efficiency is improved.
3. If two contact surface coincidence of opening a bag vacuum chuck and wrapping bag, do not have the wrapping bag between the bag portion when opening this moment, two vacuum chuck still can the laminating be in the same place, lead to unable distinguishing whether contact with the wrapping bag, and the utility model discloses a two contact areas of opening a bag vacuum chuck and wrapping bag stagger, when sending a bag unit not being sent to the wrapping bag two open a bag vacuum chuck between, open a bag vacuum chuck and can't accomplish sealedly, just can trigger the warning this moment.
4. The inner bag is pressed by the locking block and the object supporting plate, so that the packaging quality reduction caused by the fact that the inner bag moves to the sealing area of the outer packaging bag is avoided.
5. The clamping parts at two sides can automatically adapt to the width change of the packaging bag along with the movement of the bag opening vacuum chuck.
Drawings
Fig. 1 is a schematic perspective view of the present application.
Fig. 2 is a partially enlarged view a of fig. 1.
Fig. 3 is a schematic view of the mounting structure of the bag opening and sealing unit and the feeding unit in a side view.
Fig. 4 is a schematic perspective view of the bag opening and sealing unit.
Fig. 5 is a front structural schematic view of the bag opening and sealing unit.
Fig. 6 is a side view of the bag opening and sealing unit.
Fig. 7 is a schematic side view of the feeding unit.
Fig. 8 is a schematic top view of the feeding unit.
Fig. 9 is a front view of the feeding unit.
The text labels in the figures are represented as: 1. a frame; 101. a through hole; 2. a support; 3. opening a bag and vacuum sucking discs; 301. a bag opening driving unit; 4. a clamping portion; 5. a connecting portion; 6. a lock block; 7. a supporting plate; 8. placing a material rack; 9. a push plate; 10. a feeding plate; 11. a material pushing unit; 12. a discharge pipe; 13. a transverse material guide plate; 14. a vertical stock guide plate; 15. a bag support driving unit; 16. a bag pressing driving unit; 17. a bag pressing part; 18. a straightening drive unit; 19. a packaging bag storage rack; 20. a support; 21. a lifting seat; 22. a bag feeding vacuum chuck; 23. and a bag locking driving unit.
Detailed Description
The following detailed description of the present application is given for the purpose of enabling those skilled in the art to better understand the technical solutions of the present application, and the description in this section is only exemplary and explanatory, and should not be taken as limiting the scope of the present application in any way.
Embodiment 1, as shown in fig. 1 to 9, the structure of this embodiment is: a bagging device with a bag opening and locking structure comprises a bag feeding unit, a bag opening and sealing unit and a feeding unit which are arranged on a rack 1, wherein the bag opening and sealing unit is arranged on a bracket 2 at the upper end of a workbench of the rack 1, the bag feeding unit and the feeding unit are respectively arranged on two sides of the bracket 2, and a through hole 101 for passing a material is formed in the bracket 2; the bag opening and sealing unit comprises a bag opening part and a bag sealing part which are arranged on the rack 1, the bag opening part comprises bag opening vacuum suckers 3 which are arranged at intervals up and down, the bag opening vacuum suckers 3 on two sides are arranged oppositely, the projection areas of the bag opening vacuum suckers 3 which are arranged at intervals up and down on a vertical projection plane are not overlapped, a bag opening driving unit 301 is arranged on the support 2, the bag opening driving unit 301 adopts an air cylinder, and the air cylinder drives the bag opening vacuum suckers 3 to move along the vertical direction; the bag sealing part comprises clamping parts 4 arranged at left and right intervals, the clamping parts 4 adopt pneumatic clamping fingers, bag opening vacuum chucks 3 and the clamping parts 4 are distributed in a rectangular shape, the clamping parts 4 are arranged at the lower ends of connecting parts 5, the upper ends of the connecting parts 5 are hinged to a support 2, straightening driving units 18 used for driving the clamping parts 4 to be away from each other are arranged on the support 2, and the connecting parts 5 are linked with the bag opening vacuum chucks 3 through packaging bags; the bag sealing part further comprises a locking material block 6 arranged between the two clamping parts 4 and a supporting object plate 7 opposite to the locking material block, the locking material block 6 and the supporting object plate 7 are arranged at intervals from top to bottom, the locking material block 6 and the supporting object plate 7 are respectively connected with a locking bag driving unit 23, vertical reciprocating motion is respectively carried out on the locking material block 6 and the supporting object plate 7 under the driving of the locking bag driving unit 23, an inclined plane is arranged on one side, opposite to the supporting object plate 7, of the locking material block 6, and the inclined plane faces one side of the incoming materials of the packaging bag.
The concrete during operation: the conveying device conveys the packaged inner bag to the feeding unit, the bag conveying unit conveys the bag opening side of the packaging bag to the bag opening and sealing unit in a mode of facing the bag opening and sealing unit at the moment, the clamping part 4 clamps the front end of the packaging bag, then the bag opening vacuum chucks 3 on two sides move towards the packaging bag to adsorb the front side and the back side of the packaging bag, then the bag opening vacuum chucks 3 on two sides are mutually far away to pull open the bag opening of the packaging bag, and at the moment, the clamping part 4 swings towards the inner side of the packaging bag along with the packaging bag; the bag feeding unit pushes the inner bag into the packing bag from the through hole 101 and then the bag feeding unit exits, and the straightening driving unit 18 drives the connecting portion to swing to the outside of the packing bag, so that the packing bag is separated from the bag opening vacuum chuck 3 and the opening side of the packing bag is straightened.
The bag opening vacuum chucks 3 are internally provided with photoelectric sensors, the bag opening vacuum chucks 3 adsorb the side walls of the packaging bags after the packaging bags move between the two bag opening vacuum chucks 3, and the photoelectric sensors are shielded by the packaging bags at the moment, so that the alarm phenomenon cannot occur; if two do not open the wrapping bag between the bag vacuum chuck 3, open bag vacuum chuck 3 back of moving in opposite directions this moment, photoelectric sensor is not sheltered from, and photoelectric sensor uploads the treater with data this moment, and the treater carries out the analysis to data, and control alarm device reports to the police.
A bag opening structure is arranged on the outlet side of the material placing frame 8, the bag opening structure comprises a pushing plate 9 which axially slides along a through hole 101, an air cylinder used for driving the pushing plate 9 to transversely slide is arranged on the material placing frame 8, a guide mechanism is arranged on one side of a channel 101 on the pushing plate 9, and the outer diameter of the guide mechanism is adjustable and can be inserted into a packaging bag; a discharge pipe 12 matched with the guide mechanism is arranged on the outlet side of the material placing frame 8; the guide mechanism is formed by enclosing a group of transverse material guide plates 13 arranged at intervals up and down and a group of vertical material guide plates 14 arranged at intervals left and right, and the distance between at least one group of the transverse material guide plates 13 and the vertical material guide plates 14 is adjustable; in this embodiment, the horizontal material guide plate 13 is fixedly installed on the pushing plate 9, and the vertical material guide plate 14 is connected with a bag opening driving unit 15 on the pushing plate 9; the upper end of the material placing frame 8 is provided with a bag pressing driving unit 16 and a bag pressing portion 17, the bag pressing driving unit 16 adopts an air cylinder, and the bag pressing portion 17 slides in a reciprocating mode in the vertical direction under the pushing of the bag pressing driving unit 16.
When the material placing rack works specifically, the inner bag is placed in the material placing rack 8, and the bag pressing portion 17 moves from top to bottom to push the inner bag downwards, so that the inner bag keeps a flat-laid state.
After the packaging bag is opened, the pushing plate 9 moves towards the packaging bag until the transverse material guide plates 13 and the vertical material guide plates 14 in the guide mechanism penetrate through the through holes 101 to be inserted into the packaging bag, and then the vertical material guide plates 14 on the two sides are far away from each other to open the packaging bag; and then the feeding plate 10 is driven by the material pushing unit 11 to enable the inner bag in the material placing rack 8 to enter the packaging bag along the outlet, the discharging pipe 12 and the guide mechanism, and before the feeding plate 10 exits from the packaging bag, the inner bag is fixed by the material locking block 6 and the object supporting plate 7.
The concrete during operation: the bag feeding vacuum chuck 22 moves to below the packing bag and then sucks the lower end surface of the packing bag, the bag feeding vacuum chuck 22 descends to take out the packing bag at the lowermost layer of the packing bag storage rack 19, and then the bag feeding vacuum chuck 22 moves to the bag opening and sealing unit.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
The principles and embodiments of the present application are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts of the present application. The foregoing is only a preferred embodiment of the present application, and it should be noted that there are objectively infinite specific structures due to the limited character expressions, and it will be apparent to those skilled in the art that a plurality of modifications, decorations or changes may be made without departing from the principle of the present application, and the above technical features may be combined in a suitable manner; such modifications, variations, combinations, or adaptations of the invention using its spirit and scope, as defined by the claims, may be directed to other uses and embodiments, or may be learned by practice of the invention.
Claims (10)
1. A bagging device with a bag opening and locking structure comprises a bag feeding unit, a bag opening and sealing unit and a feeding unit which are arranged on a rack (1), wherein the bag opening and sealing unit is arranged on a support (2) at the upper end of a workbench of the rack (1), the bag feeding unit and the feeding unit are respectively arranged on two sides of the support (2), and a through hole (101) for passing materials is formed in the support (2), and the bagging device is characterized in that the bag opening and sealing unit comprises a bag opening part and a bag sealing part which are arranged on the rack (1), the bag opening part comprises bag opening vacuum suckers (3) which are arranged at intervals from top to bottom, and the bag opening vacuum suckers (3) move along the vertical direction; the bag sealing part comprises clamping parts (4) which are arranged at left and right intervals, the bag opening vacuum suckers (3) and the clamping parts (4) are distributed in a rectangular shape, the clamping parts (4) are arranged on the connecting parts (5), the connecting parts (5) are hinged on the bracket (2), and the connecting parts (5) are linked with the bag opening vacuum suckers (3) through packaging bags; the bag sealing part further comprises a material locking block (6) arranged between the two clamping parts (4) and an object supporting plate (7) opposite to the material locking block, and the material locking block (6) and the object supporting plate (7) move in the same direction with the bag opening vacuum chuck.
2. The bagging device with the bag opening and locking structure is characterized in that the feeding unit comprises a material placing frame (8), a channel for materials to enter is formed in the material placing frame (8), a material pushing portion is arranged on the material placing frame (8), a bag opening structure is arranged on the outlet side of the material placing frame (8), the bag opening structure comprises a pushing plate (9) which axially slides along a through hole (101) and a guide mechanism which is arranged on the pushing plate (9) and used for inserting a packaging bag, and the outer diameter of the guide mechanism is adjustable.
3. A bagging apparatus having a bag opening and locking structure according to claim 2, wherein the material pushing part comprises a feeding plate (10) arranged in the material placing frame (8) and a material pushing unit (11) for driving the feeding plate (10) to move axially along the through hole (101).
4. A bagging apparatus with a bag opening and locking structure according to claim 2, wherein the outlet side of the material placing frame (8) is provided with a discharging pipe (12) matched with the guiding mechanism.
5. The bagging device with the bag opening and locking structure as claimed in claim 2, wherein the guiding mechanism is formed by enclosing a group of horizontal material guiding plates (13) arranged at intervals up and down and a group of vertical material guiding plates (14) arranged at intervals left and right, and the distance between at least one group of the horizontal material guiding plates (13) and the vertical material guiding plates (14) is adjustable.
6. The bagging device with the bag opening and locking structure as claimed in claim 5, wherein the transverse material guide plate (13) is fixedly arranged on the pushing plate (9), and the vertical material guide plate (14) is connected with a bag opening driving unit (15) on the pushing plate (9).
7. The bagging device with the bag opening and locking structure as claimed in claim 2, wherein the bag pressing driving unit (16) and the bag pressing part (17) are arranged at the upper end of the material placing frame (8), and the bag pressing part (17) slides in a reciprocating mode in the vertical direction under the pushing of the bag pressing driving unit (16).
8. A bagging apparatus with a bag opening and locking structure according to claim 1, wherein the side of the locking block (6) opposite to the object supporting plate (7) is provided with an inclined surface.
9. The bagging device with the bag opening and locking structure as claimed in claim 1, wherein the bag feeding unit comprises a bag storage rack (19) with an open lower end, a support (20) which slides axially along the through hole is arranged at the lower end of the bag storage rack (19), a lifting seat (21) which moves in the vertical direction is arranged at the upper end of the support (20), and a bag feeding vacuum suction cup (22) is arranged at the upper end of the lifting seat (21).
10. The bagging device with the bag opening and material locking structure as claimed in claim 1, wherein the projection areas of the bag opening vacuum suction cups (3) which are arranged at intervals up and down on the vertical projection plane are not coincident.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023269315.6U CN214452291U (en) | 2020-12-30 | 2020-12-30 | Bagging equipment with open bag lock material structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023269315.6U CN214452291U (en) | 2020-12-30 | 2020-12-30 | Bagging equipment with open bag lock material structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214452291U true CN214452291U (en) | 2021-10-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023269315.6U Active CN214452291U (en) | 2020-12-30 | 2020-12-30 | Bagging equipment with open bag lock material structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN214452291U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112623369A (en) * | 2020-12-30 | 2021-04-09 | 湖南追一智能机械有限公司 | Bagging equipment with open bag lock material structure |
| CN115009605A (en) * | 2022-07-19 | 2022-09-06 | 珠海趣印科技有限公司 | Single-drive bag supporting device and automatic bagging equipment |
-
2020
- 2020-12-30 CN CN202023269315.6U patent/CN214452291U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112623369A (en) * | 2020-12-30 | 2021-04-09 | 湖南追一智能机械有限公司 | Bagging equipment with open bag lock material structure |
| CN115009605A (en) * | 2022-07-19 | 2022-09-06 | 珠海趣印科技有限公司 | Single-drive bag supporting device and automatic bagging equipment |
| CN115009605B (en) * | 2022-07-19 | 2023-05-12 | 珠海趣印科技有限公司 | Single-drive bag opening device and automatic bagging equipment |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: PINGJIANG COUNTY SHUANGLIAN ELECTROMECHANICAL TECHNOLOGY DEVELOPMENT CO.,LTD. Assignor: HUNAN ZHUIYI INTELLIGENT MACHINERY Co.,Ltd. Contract record no.: X2023980043469 Denomination of utility model: A bagging equipment with a bag opening and locking structure Granted publication date: 20211022 License type: Common License Record date: 20231018 |