CN212949453U - Automatic die-cutting machine for irregular bags - Google Patents
Automatic die-cutting machine for irregular bags Download PDFInfo
- Publication number
- CN212949453U CN212949453U CN202021412406.8U CN202021412406U CN212949453U CN 212949453 U CN212949453 U CN 212949453U CN 202021412406 U CN202021412406 U CN 202021412406U CN 212949453 U CN212949453 U CN 212949453U
- Authority
- CN
- China
- Prior art keywords
- plate
- shaft
- roller
- lifting plate
- driving
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
The utility model discloses an automatic irregular bag punching machine, which comprises a punching mechanism and a bag discharging mechanism which are fixed on a frame, wherein the punching mechanism comprises a bottom plate and a plurality of guide pillars arranged on the upper surface of the bottom plate, a top frame is arranged at the upper ends of the guide pillars, a lifting plate which is provided with mounting holes respectively matched with the guide pillars in a sliding way is arranged between the bottom plate and the top frame, a punching cutter is arranged on the lower surface of the lifting plate, a first eccentric shaft which is coaxial with two end shafts but not coaxial with a middle shaft is hinged on the top frame, a rocking plate which is hinged on the lifting plate at the lower end is arranged on the middle shaft sleeve of the first eccentric shaft, a first driving source for driving the end shaft of the first eccentric shaft is arranged on the top frame, springs are respectively sleeved on the guide pillars below the lifting plate, a lifting plate fine adjustment device which can finely adjust the height between the lifting plate and the rocking plate is arranged on the lifting, the lifting plate is prevented from inclining, and the punching force of the lifting plate can be adjusted by the lifting plate fine adjustment device at one time.
Description
Technical Field
The utility model belongs to the automation equipment field, in particular to automatic die-cutting machine of irregular bag.
Background
The die cutter is widely applied to the back process of manufacturing the packaging bags, is used for dividing the connected packaging bags into single bags, and mainly comprises a die cutting mechanism for cutting the packaging bags, a bag discharging mechanism for peeling the packaging bags and thin die waste materials and a conveying mechanism for conveying products or the thin die waste materials.
The existing punching mechanism generally comprises a lifting plate with a die-cutting rule, four guide pillars are mounted on the lifting plate through bolts, the four guide pillars are slidably mounted on a lower chopping block fixed on a rack, a crank is hinged to the lower end of each guide pillar, the other end of the crank is connected with an eccentric shaft, and a driving motor mounted below the rack drives the eccentric shaft to rotate so as to drive the guide pillars and the lifting plate to move up and down. In the die-cutting mechanism course of work, there is certain striking between lifter plate and lower chopping block, after die-cutting mechanism work a period, the bolt of fixed guide pillar on the lifter plate is difficult to avoid producing not hard up, make the lifter plate produce the slope, it is not good to lead to the cutting effect, serious can cause the cutter to be damaged, product quality can not be guaranteed, this kind of die-cutting mechanism is difficult to adjust the height and the levelness of lifter plate moreover, need adjust the bolt of every fixed guide pillar many times when adjusting, it is very troublesome. The existing die-cutting machine is difficult to check and adjust because a driving motor, an eccentric shaft, a crank and the like which drive a lifting plate to move are arranged on a machine frame below a lower cutting board.
The existing bag discharging mechanism mainly comprises a belt conveying mechanism for conveying packaging bags and a separation compression roller driven by an air cylinder and arranged above the belt conveying mechanism, wherein the packaging bags are separated from thin die waste materials through the butt-pressing of a driving roller and the separation compression roller in the belt conveying mechanism, but the situation that the packaging bags are out of the bags irregularly or adhered to the separation compression roller is possibly generated due to the fact that the friction force of the belt and the packaging bags is insufficient at the moment, and the punched products are thrown away through inertia very disorderly due to the fact that a conveying roller shaft rotates at high speed in the bag making process, so that the later-period collection is not troublesome.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides an automatic die cutting machine of irregular bag, the utility model discloses a following scheme:
an automatic irregular bag punching machine comprises a punching mechanism and a bag discharging mechanism which are arranged on a rack, wherein the punching mechanism comprises a bottom plate fixed on the rack, a lower chopping block and a plurality of vertical guide posts which are arranged around the periphery of the lower chopping block at intervals are arranged on the upper plate surface of the bottom plate, a top frame is arranged at the upper ends of the guide posts, a lifting plate is arranged between the bottom plate and the top frame, gaps are respectively arranged between the lifting plate and the bottom plate and the top frame, a plurality of mounting holes which are respectively in sliding fit with the guide posts are arranged on the lifting plate, a punching cutter is arranged on the lower plate surface of the lifting plate, a first eccentric shaft which is transversely arranged and has the same axis with the middle shaft but has different axis with the middle shaft and a rocking plate which is longitudinally arranged and has the upper end sleeved on the middle shaft of the first eccentric shaft and the lower end hinged on the lifting plate, the two end shafts of the first eccentric shaft are respectively hinged on the top frame, a first driving source for driving the first eccentric shaft to rotate is arranged on the top frame, springs are respectively sleeved on a plurality of guide pillars between the lifting plate and the bottom plate, a lifting plate fine adjustment device capable of finely adjusting the height between the lifting plate and the rocking plate is arranged on the lifting plate, the guide pillars are fixed, the lifting plate is slidably mounted on the guide pillars, the lifting plate integrally slides up and down along the guide pillars, therefore, the lifting plate is not easy to incline, the height between the lifting plate and the rocking plate can be integrally adjusted at any time through the lifting plate fine adjustment device, and the height of the lifting plate can be adjusted more conveniently and rapidly.
Furthermore, a plurality of guide sliding sleeves, the center lines of which coincide with the center lines of the plurality of mounting holes respectively, are fixedly mounted on the upper plate surface of the lifting plate, the guide sliding sleeves are slidably sleeved on the plurality of guide pillars respectively, and the guide sliding sleeves enable the lifting plate to slide up and down along the guide pillars more smoothly.
Preferably, the number of the guide posts is four, the lifting plate is a square plate, and the mounting holes are formed in four corners of the square plate.
Preferably, the rocking plates are provided with two, the upper ends of the rocking plates are respectively sleeved at two ends of the middle shaft of the first eccentric shaft, two connecting blocks are fixedly arranged on the upper plate surface of the lifting plate, the two rocking plates are vertically arranged, and the lower ends of the two rocking plates are respectively hinged to the two connecting blocks.
Furthermore, the lifting plate fine-tuning device comprises a second eccentric shaft with two end shafts coaxial but not coaxial with the middle shaft, the two end shafts of the second eccentric shaft are respectively hinged on the two connecting blocks, the lower ends of the two rocking plates are hinged on the connecting blocks by being sleeved at the two ends of the middle shaft of the second eccentric shaft, a worm wheel is fixedly arranged on the outer circumferential surface of the middle shaft of the second eccentric shaft, and a worm meshed with the worm wheel and a second driving source for driving the worm to rotate are arranged on the lifting plate.
Further, the second driving source is including installing gear motor on the lifter plate on gear motor's the output shaft with the one end of the center pin of worm all is equipped with the sprocket, two the cover is equipped with the chain and connects on the sprocket.
Further, the bag discharging mechanism comprises two side plates arranged on a rack in front of the punching mechanism, a lower press roller shaft, a drive roller and a driven roller which are respectively hinged on the two side plates are sequentially arranged between the two side plates from back to front at intervals, a third driving source capable of driving the drive roller to rotate is arranged on one of the two side plates, a first belt is sleeved on the drive roller and the driven roller, the drive roller and the lower press roller shaft are in transmission connection through a synchronous belt pulley mechanism, the synchronous belt pulley mechanism comprises two first synchronous belt pulleys respectively arranged at the same end of the lower press roller shaft and the drive roller and a first intermediate belt pulley arranged on the inner side wall surface of the side plate, a first synchronous belt is sleeved on the two first synchronous belt pulleys and the first intermediate belt pulley, and a plurality of guide rod cylinders which are spaced from the lower press roller shaft are arranged between the two side plates, the lower end of the guide rod cylinder is hinged with a glue pressing roller which can be pushed to a position where the glue pressing roller is mutually extruded with the lower pressing roller shaft by the guide rod cylinder.
Furthermore, go out a bag mechanism still including setting up the both ends of driven voller top articulate respectively two driving roller on the curb plate glue the compression roller with connect the cover on the driving roller and be equipped with the second belt that is parallel to first belt, the driving roller with be equipped with synchronous reverse drive mechanism between the drive roll.
Further, synchronous reverse drive mechanism is including articulating two band pulley, tensioning roller and second synchronous pulley in the middle of the second on the inside wall face of curb plate one of them and set firmly the drive roll is close to the third synchronous pulley of the one end of this curb plate band pulley in the middle of the second the tensioning roller the second synchronous pulley reaches the last cover of third synchronous pulley is equipped with the second hold-in range, curb plate outside wall is worn out to the articulated shaft of second synchronous pulley first gear has set firmly on the articulated shaft of wearing out curb plate outside wall of second synchronous pulley, first gear engagement have with the same second gear of first gear, the second gear sets firmly the one end of driving roller.
Furthermore, the automatic die-cutting machine for irregular bags further comprises a conveying mechanism arranged below the bag outlet mechanism and used for conveying packaging bags, the conveying mechanism comprises a conveying table top support arranged on the frame, two side plates are fixed on the conveying table top support, a conveying belt and a conveying shaft driving the conveying belt to move are arranged on the conveying table top support, and a fourth driving source used for driving the conveying shaft.
To sum up, the utility model discloses for its beneficial effect of prior art is: the punching mechanism arranged on the punching machine enables the lifting plate to keep horizontal up-and-down movement, so that the phenomenon that the cutting effect of the packaging bag is influenced due to the inclination of the lifting plate is avoided; the lifting plate fine-adjustment device arranged on the punching mechanism can simply and quickly fine-adjust the height between the lifting plate and the rocking plate so as to adjust the punching force and the punching depth of the punching plate, thereby solving the problems that the punching force cannot be integrally adjusted at one time and the adjustment is difficult in the prior art and reducing the adjustment difficulty of the punching cutter; the bag outlet mechanism of the punching machine adopts a mode of synchronous transmission of an upper conveying belt and a lower conveying belt, when the film material is tightly pressed by the glue pressing roller to be discharged, the bag outlet can be ensured to be neat, and the bag is convenient to collect.
Drawings
Fig. 1 is a perspective view of the present invention;
fig. 2 is a front view of the die cutting mechanism of the present invention;
fig. 3 is a schematic perspective view of the punching mechanism of the present invention;
fig. 4 is one of the three-dimensional schematic diagrams of the bag discharging mechanism and the conveying mechanism of the present invention;
fig. 5 is a second schematic perspective view of the bag discharging mechanism and the conveying mechanism of the present invention;
fig. 6 is an enlarged view of a portion a in fig. 5.
Description of reference numerals: 1. a punching mechanism; 11. a base plate; 12. a cutting board is arranged; 13. a guide post; 14. a top frame; 141. mounting blocks; 15. a lifting plate; 152. punching and cutting the knife; 153. a guide sliding sleeve; 154. connecting blocks; 16. a first eccentric shaft; 17. shaking the plate; 18. a first drive source; 19. a spring; 20. a positioning sleeve; 2. a bag discharging mechanism; 21. two side plates; 22. pressing the roll shaft downwards; 23. a drive roll; 24. a driven roller; 25. a third drive source; 26. a first belt; 27. a synchronous pulley mechanism; 271. a first timing pulley; 271. a first timing pulley; 272. A first intermediate pulley; 28. a guide rod cylinder; 29. gluing and pressing the roller; 201. a second belt; 202. A driving roller; 210. a synchronous reverse drive mechanism; 211. a second intermediate pulley; 212. a tension roller; 213. a second timing pulley; 214. a third synchronous pulley; 215. a second synchronous belt; 216. a first gear; 217. a second gear; 3. a conveying mechanism; 31. a conveying table top support; 32. a conveyor belt; 33. a delivery shaft; 34. a fourth drive source; 4. a lifter plate fine-tuning device; 41. a second eccentric shaft; 411. an eccentric shaft sleeve; 42. a worm gear; 43. a worm; 44. a second drive source; 441. a reduction motor; 100. and a frame.
Detailed Description
The following detailed description provides many different embodiments or examples for implementing the invention. Of course, these are merely embodiments or examples and are not intended to be limiting. In addition, repeated reference numbers, such as repeated numbers and/or letters, may be used in various embodiments. These iterations are for simplicity and clarity of describing the present invention and are not intended to represent a particular relationship between the various embodiments and/or configurations discussed.
Furthermore, spatially relative terms, such as "below" … "," below "," inside-out "," above "," upper "and the like, may be used herein to facilitate describing the relationship of one element(s) or feature(s) to another element(s) or feature(s) in the drawings and may encompass different orientations of the device in use or operation and the orientation depicted in the drawings. The devices may be turned to different orientations (0 degrees of rotation or other orientations) and the spatially relative descriptors used therein should also be interpreted as such and are not to be construed as limiting the invention, and the terms "first" and "second" are used for descriptive purposes only and are not intended to indicate or imply relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
The invention will be further described with reference to the following description and embodiments in conjunction with the accompanying drawings:
the automatic irregular bag punching machine shown in fig. 1 comprises a punching mechanism 1 and a bag outlet mechanism 2 which are arranged on a machine frame 100, and a conveying mechanism 3 which is arranged in front of and below the bag outlet mechanism 2.
As shown in fig. 2 and 3, the punching mechanism 1 includes a bottom plate 11 fixed on a frame 100, a lower cutting board 12 and four vertical guide pillars 13 surrounding the outer periphery of the lower cutting board 12 and disposed at four corners of a square shape are disposed on an upper board surface of the bottom plate 11, a top frame 14 is disposed at an upper end of the guide pillars 13, a square lifting board 15 is disposed between the bottom plate 11 and the top frame 14, a punching knife 152 is disposed on a lower board surface of the lifting board 15, the punching knife 152 includes an upper cutting board and a die cutting knife embedded in the upper cutting board, gaps are respectively disposed between the lifting board 15 and the bottom plate 11 and the top frame 14, mounting holes 151 slidably fitted with the guide pillars 13 are respectively disposed on the four corners of the lifting board 15, four guide sliding sleeves 153 whose central lines respectively coincide with the central lines of the four mounting holes 151 are further fixed on the upper board surface of the lifting board 15 by bolts, the four guide sliding sleeves 153 are respectively slidably sleeved on the four guide posts 13, the lifting plate 15 can slide up and down along the four guide posts 13 through the four mounting holes 151 and the four guide sliding sleeves 153, springs 19 are respectively sleeved on the four guide posts 13 between the lifting plate 15 and the bottom plate 11, the springs 19 can buffer the movement of the lifting plate 15, two mounting blocks 141 are arranged on the top frame 14, a first eccentric shaft 16 is transversely arranged between the lifting plate 15 and the top frame 14, two ends of the first eccentric shaft 16 are hinged on the two mounting blocks 141, two end shafts of the first eccentric shaft 16 are coaxial but not coaxial with the middle shaft, a vertically placed rocking plate 17 is respectively sleeved at two ends of the middle shaft of the first eccentric shaft 16, the axial movement of the upper ends of the two rocking plates 17 is respectively limited by a positioning sleeve 20, a first driving source 18 for driving one end shaft of the first eccentric shaft 16 to rotate is arranged on the top frame 14, two connecting blocks 154 are arranged on the upper plate surface of the lifting plate 15, a second eccentric shaft 41 with two ends hinged on the two connecting blocks 154 is arranged above the lifting plate 15, two end shafts of the second eccentric shaft 41 are coaxial but not coaxial with a middle shaft, the lower ends of the two rocking plates 17 are respectively sleeved on two ends of the middle shaft of the second eccentric shaft 41 and are limited to move axially through an eccentric shaft sleeve 411, a worm wheel 42 is fixed on the outer circumferential surface of the middle shaft of the second eccentric shaft 41 through a positioning sleeve 20, a worm 43 meshed with the worm wheel 42 and a second driving source 44 driving the worm 43 to rotate are arranged on the lifting plate 15 at one side of the worm wheel 42, the second driving source 44 comprises a speed reducing motor 441 arranged on the lifting plate 15, and chain wheels are arranged on the output shaft of the speed reducing motor 441 and one end of the center shaft of the worm 43, and chains are sleeved on the two chain wheels.
When the punching mechanism 1 works, the first driving source 18 is started to drive the first eccentric shaft 16 to rotate, so that the two rocking plates 17 drive the lifting plate 15 to slide up and down along the four guide posts 13, and the lifting plate 15 cuts a film once when sliding to the lowest part each time; when the second driving source 44 is activated, the worm 43 rotates to drive the worm wheel 42 to rotate, so that the middle shaft of the second eccentric shaft 41 rotates, and the two end shafts of the second eccentric shaft 41 drive the lifting plate 15 to slide upwards or downwards along the four guide posts 13, so that the height between the lifting plate 15 and the rocking plate 17 can be finely adjusted.
As shown in fig. 1, go out bag mechanism 2 and set up on the place ahead frame 100 of die-cutting mechanism 1, as shown in fig. 4 and 5, go out bag mechanism 2 including setting up two curb plates 21 in frame 100, two be equipped with both ends and articulate respectively two from back to front in proper order at interval between the curb plate 21 push down roller axle 22, drive roller 23 and driven voller 24 on the curb plate 21, two be equipped with on one of them of curb plate 21 can drive the rotatory third driving source 25 of drive roller 23 with the cover is equipped with first belt 26 on the driven voller 24, drive roller 23 with push down roller axle 22 and pass through synchronous pulley mechanism 27 transmission connection, two be located between the curb plate 21 be located push down the top of roller axle 22 be equipped with push down a plurality of guide arm cylinders 28 that roller axle 22 has the interval, guide arm cylinder 28 lower extreme articulates there is can by guide arm cylinder 28 roller axle push to with the gluey pressure that pushes down the mutual extruded position of push down roller axle 22 is pressed And a roller 29.
As shown in fig. 6, the synchronous pulley mechanism 27 includes two first synchronous pulleys 271 respectively disposed at the same end of the lower pinch roller shaft 22 and the drive roller 23 and a first intermediate pulley 272 disposed on an inner sidewall surface of the side plate 21, and a first synchronous belt 273 is sleeved on the two first synchronous pulleys 271 and the first intermediate pulley 272.
As shown in fig. 4 and 5, a driving roller 202 is disposed above the driven roller 24, two ends of the driving roller are respectively hinged to the two side plates 21, a second belt 201 parallel to the first belt 26 is sleeved on each of the glue pressing roller 29 and the driving roller 202, and a synchronous reverse driving mechanism 210 is disposed between the driving roller 202 and the driving roller 23.
As shown in fig. 6, the synchronous reverse transmission mechanism 210 includes a second intermediate pulley 211, a tension roller 212, a second synchronous pulley 213 hinged on the inner side wall surface of one of the two side plates 21, and a third synchronous pulley 214 fixedly arranged at one end of the driving roller 23 close to the side plate, a second synchronous belt 215 is sleeved on the second intermediate pulley 211, the tension roller 212, the second synchronous pulley 213, and the third synchronous pulley 214, a hinge shaft of the second synchronous pulley 213 penetrates through the outer side wall surface of the side plate, a first gear 216 is fixedly arranged on the hinge shaft of the second synchronous pulley penetrating through the outer side wall surface of the side plate, the first gear 216 is engaged with a second gear 217 identical to the first gear 216, and the second gear 217 is fixedly arranged at one end of the transmission roller 202.
Go out a bag mechanism 2 during operation, third driving source 25 drive roll 23 rotates, and through synchronous belt pulley mechanism 27 and synchronous reverse drive mechanism 210's transmission, the synchronous reverse motion of first belt 26 and second belt 201, under the effect of guide arm cylinder 28, it pushes down once again to glue compression roller 29 push down the wrapping bag on the compression roller axle 22 first belt 26 with under the effect of second belt 201, the wrapping bag is sent conveying mechanism 3 forward neatly.
As shown in fig. 4 and 5, the conveying mechanism 3 includes a conveying table support 31 disposed on the frame 100, two side plates 21 are fixed on the conveying table support 31, a conveying belt 32 and a conveying shaft 33 for driving the conveying belt 32 to move are disposed on the conveying table support 31, and a fourth driving source 34 for driving the conveying shaft 33.
The first drive source 18, the third drive source 25 and the fourth drive source 34 each include a motor and a speed reducer mounted on an output shaft of the motor.
The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above, and it should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only illustrative of the principles of the present invention, and the present invention can be modified in various ways without departing from the spirit and scope of the present invention, and these modifications and changes fall into the scope of the present invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021412406.8U CN212949453U (en) | 2020-07-16 | 2020-07-16 | Automatic die-cutting machine for irregular bags |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021412406.8U CN212949453U (en) | 2020-07-16 | 2020-07-16 | Automatic die-cutting machine for irregular bags |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212949453U true CN212949453U (en) | 2021-04-13 |
Family
ID=75393431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021412406.8U Expired - Fee Related CN212949453U (en) | 2020-07-16 | 2020-07-16 | Automatic die-cutting machine for irregular bags |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212949453U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117584544A (en) * | 2024-01-17 | 2024-02-23 | 朗锐包装技术(沧州)有限公司 | A high-speed continuous punching mechanism for packaging bags |
-
2020
- 2020-07-16 CN CN202021412406.8U patent/CN212949453U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117584544A (en) * | 2024-01-17 | 2024-02-23 | 朗锐包装技术(沧州)有限公司 | A high-speed continuous punching mechanism for packaging bags |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110238914A (en) | A kind of plank fixed-length cutting device | |
| CN202080476U (en) | Shaping package pressing machine | |
| CN105835121B (en) | packing box die-cutting machine | |
| CN111468785A (en) | A kind of steel production and manufacturing process | |
| CN116277230A (en) | A filling material cutting device for furniture production | |
| CN206645136U (en) | A kind of packaging bag folding, binding all-in-one machine | |
| CN215466192U (en) | Punching machine unloading sorting device | |
| CN213832379U (en) | Plastic packaging bag slitting and shaping device | |
| CN210479213U (en) | Cutting device for automatic packaging of non-woven fabrics | |
| CN210500552U (en) | A kind of cutting and counting device for the rear of the packaging of marinated eggs | |
| CN113493033A (en) | Food packaging machinery's automatic punching cutting device | |
| CN208645572U (en) | A kind of progressive stamping line | |
| CN107757964B (en) | A fully automatic vertical packaging machine | |
| CN110744863B (en) | Reciprocating type puncher | |
| CN211137850U (en) | Disposable glove waste tearing machine | |
| CN2680629Y (en) | Sheet turning device | |
| CN115946401A (en) | Separating device for bag making machine | |
| CN211845085U (en) | Roller pasting device for plastic packaging | |
| CN223162148U (en) | Packaging paper output device | |
| CN214285424U (en) | Sanitary towel small bag breaking device | |
| CN217532054U (en) | A kind of die-cutting equipment for packaging carton production | |
| CN219095290U (en) | Adjustable device for die cutting and feeding of printed matter | |
| CN223058147U (en) | Plastic packaging bag production waste material recovery device | |
| CN217995012U (en) | Accurate high-speed plate rolling type aluminum-plastic blister packaging machine for pharmacy | |
| CN215040749U (en) | Efficient punching device of bag making machine for production and processing of environment-friendly plastic bags |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210413 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |