CN220032384U - Lifting mechanism and packaging machine - Google Patents
Lifting mechanism and packaging machine Download PDFInfo
- Publication number
- CN220032384U CN220032384U CN202320637657.3U CN202320637657U CN220032384U CN 220032384 U CN220032384 U CN 220032384U CN 202320637657 U CN202320637657 U CN 202320637657U CN 220032384 U CN220032384 U CN 220032384U
- Authority
- CN
- China
- Prior art keywords
- lifting
- tool
- lifting mechanism
- packaging machine
- lifting device
- 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.)
- Active
Links
- 230000007246 mechanism Effects 0.000 title claims abstract description 73
- 238000004806 packaging method and process Methods 0.000 title claims abstract description 32
- 238000010521 absorption reaction Methods 0.000 claims abstract description 5
- 230000001419 dependent effect Effects 0.000 claims abstract description 5
- 239000012528 membrane Substances 0.000 claims description 7
- 230000000712 assembly Effects 0.000 abstract description 3
- 238000000429 assembly Methods 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 description 16
- 238000005520 cutting process Methods 0.000 description 13
- 238000000034 method Methods 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 7
- 239000000758 substrate Substances 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 210000004907 gland Anatomy 0.000 description 2
- 238000010926 purge Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
Classifications
-
- 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
- B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
- B65B51/10—Applying or generating heat or pressure or combinations thereof
- B65B51/14—Applying or generating heat or pressure or combinations thereof by reciprocating or oscillating members
-
- 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
- B65B31/00—Packaging articles or materials under special atmospheric or gaseous conditions; Adding propellants to aerosol containers
- B65B31/02—Filling, closing, or filling and closing, containers or wrappers in chambers maintained under vacuum or superatmospheric pressure or containing a special atmosphere, e.g. of inert gas
-
- 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
- B65B47/00—Apparatus or devices for forming pockets or receptacles in or from sheets, blanks, or webs, comprising essentially a die into which the material is pressed or a folding die through which the material is moved
-
- 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
- B65B47/00—Apparatus or devices for forming pockets or receptacles in or from sheets, blanks, or webs, comprising essentially a die into which the material is pressed or a folding die through which the material is moved
- B65B47/04—Apparatus or devices for forming pockets or receptacles in or from sheets, blanks, or webs, comprising essentially a die into which the material is pressed or a folding die through which the material is moved by application of mechanical pressure
-
- 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
- B65B65/00—Details peculiar to packaging machines and not otherwise provided for; Arrangements of such details
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Containers And Plastic Fillers For Packaging (AREA)
- Auxiliary Devices For And Details Of Packaging Control (AREA)
Abstract
Lifting mechanism and packagine machine. The utility model relates to a lifting mechanism (100) for opening and closing a tool (50) of a packaging machine (100A, 100B), wherein the lifting mechanism (100) comprises at least one first lifting device and at least one second lifting device, which can be actuated continuously in order to move the lifting mechanism (100) from an open position (S1) to a closed position (S2), wherein the first lifting device is decoupled from load absorption by means of the second lifting device for closing the tool (50), wherein the lifting mechanism (100) comprises at least one adjustable locking mechanism (13) for force-dependent decoupling of the first lifting device from a force flow caused by the second lifting device. The lifting mechanism may be used in particular for lifting heavy tool assemblies and in particular for generating a great lifting force.
Description
Technical Field
The utility model relates to a lifting mechanism for opening and closing a tool of a packaging machine, wherein the lifting mechanism comprises at least one first lifting device and at least one second lifting device, which can be actuated continuously to move the lifting mechanism from an open position to a closed position, wherein the first lifting device is decoupled from load absorption by means of the second lifting device for closing the tool, the lifting mechanism comprising at least one adjustable locking mechanism for force-dependent decoupling of the first lifting device from a force flow caused by the second lifting device.
Background
Lifting mechanisms are conventionally used on intermittently operated packaging machines (e.g. deep drawing packaging machines) in order to cyclically open and close work stations (e.g. forming stations, sealing stations and/or cutting stations) in order to perform processing operations on a supply of packaging material.
DE 42 16,207 C1 discloses a packaging machine with a cutting device, which can be opened and closed by means of a piston-cylinder device. In order to better absorb the forces generated during the cutting process, the piston-cylinder arrangement can be coupled with the cutting site by means of wedges which can be retracted into its piston. Thus, the cutting force established during the cutting process does not act on the piston stroke.
However, known piston-cylinder decouples reach their limits when lifting heavy tool assemblies.
Disclosure of Invention
The problem underlying the present utility model is to provide a lifting mechanism which can be used in particular for lifting heavy tool assemblies and in particular for generating a great lifting force.
This problem is solved by means of a lifting mechanism having the following features.
Preferred embodiments of the present utility model are indicated by the following corresponding subject matter.
The utility model relates to a lifting mechanism for opening and closing a tool of a packaging machine, wherein the lifting mechanism comprises at least one first lifting device and at least one second lifting device, which can be actuated continuously in order to move the lifting mechanism from an open position to a closed position, wherein the first lifting device is decoupled from load absorption (load absorption) by means of the second lifting device for closing the tool. According to the utility model, the lifting mechanism has at least one adjustable locking mechanism for force-dependent decoupling of the first lifting device from the force flow caused by the second lifting device. The locking mechanism makes it possible to at least temporarily block the first lifting device while establishing a maximum closing force of the tool by means of the second lifting device.
The locking mechanism used in the present utility model ensures that: the first lifting means lifts only the weight of the lower part of the tool and/or the upper part of the tool formed thereon, so to speak, as displacement lifting means for closing the tool but for applying the power lifting required for the working process, and the second lifting means operates decoupled from the first lifting means as power lifting means, i.e. the first lifting means remains unloaded by using the locking mechanism when the power lifting is performed. This enables the lifting mechanism, in particular the first lifting device, to be operated gently even when the heavy tool component is to be moved by means of the lifting mechanism and/or when high tool closing forces are required.
Preferably, the locking mechanism may be clamped by at least one component formed on the first lifting device in order to decouple the first lifting device from the force flow (force flow) caused by the second lifting device. It is conceivable that the locking mechanism has at least one linearly or rotatably adjustable blocking element which can be coupled to or engaged with the first lifting device, so that the force generated by the second lifting device can be protected from the first lifting device.
One variation provides that the locking mechanism has an adjustment drive that can be controlled separately from the first and second lifting devices. Such an adjustment drive may be, for example, a pneumatically operated linear drive or a pneumatically operated pivot drive.
According to one embodiment of the utility model, the lifting mechanism has at least one base plate which is supported by the pull rod and is adjustably mounted along the pull rod by means of a first lifting device. The tie rods, which can be used to support the base plate, can be attached to the frame of the packaging machine by means of holders, for example by means of curved holding plates or guide rails.
It is conceivable that the base plate is configured to support a lower tool part, such as a gland. The tool lower portion may be configured as a pallet container for receiving a pre-packaged lower portion of a predetermined format.
Preferably, a second lifting device is arranged between the base plate and the tool lower part, wherein the tool lower part can be lifted from the base plate by means of the second lifting device to establish a powered lift, thereby establishing a pretension between the tool lower part and the tool upper part positioned above it.
An easy-to-manufacture structure results from the fact that the lifting mechanism comprises at least one height-adjustable stop for stopping the lifting movement of the tool holder for supporting the upper part of the tool. This allows the weight of the first lifting device, in particular of the upper part of the tool, to be reduced as long as the tool holder provided for this purpose sits on the stop. In particular, during the closing of the lifting mechanism, the lifting movement of the upper part of the tool can be stopped and a load change can occur when the tool holder sits on the stop. This load change results from the fact that the lower part of the tool positioned on the base plate is lifted from the time when the lifting movement of the upper part of the tool is stopped, resulting in the entire tool being closed. Thus, the tool part can be lowered and lifted successively, wherein the weight forces caused by the tool part each act on the first lifting device alone.
It is conceivable for the stop to be mounted in a height-adjustable manner, for example as a threaded bolt with an external thread which is screwed to the frame. This enables the use of different tool parts.
Preferably, the first lifting device comprises at least one lifting cylinder with an extendable piston, which can be controlled for adjusting both the upper tool part and the lower tool part. It is conceivable to provide even a plurality of such lifting cylinders, for example four lifting cylinder modules, on the circumferential side of the lifting mechanism.
According to a preferred embodiment of the utility model, the second lifting means comprise at least one inflatable membrane for lifting the lower part of the tool. The inflatable membrane may be positioned between the tool lower portion and a substrate positioned below the tool lower portion to lift the tool lower portion on the substrate after force-related decoupling of the first lifting device by the locking mechanism to perform powered lifting for a predetermined work process. Thus, the base plate is fixed by the locking mechanism so that no force is transmitted from the base plate to the lift cylinder.
The utility model also relates to a packaging machine, in particular in the form of a deep-drawing packaging machine or in the form of a tray sealer, wherein at least one lifting mechanism of the above-mentioned type is mounted on the packaging machine. For example, the respective lifting mechanism may be present at the forming, sealing and/or cutting stations of the deep drawing packaging machine in order to move the tools used thereon. Alternatively, the lifting mechanism may be used at the sealing station of the tray sealing machine.
Drawings
The utility model is explained in more detail with reference to the following figures. Wherein:
figure 1 shows a schematic side view of a deep drawing packaging machine,
figure 2 shows a schematic perspective view of a tray sealer,
figure 3 shows the lifting mechanism according to the utility model in its open position,
figure 4 shows the lifting mechanism of figure 3 with the upper part of the tool lowered,
figure 5 shows the lifting mechanism of figure 4 with the lower part of the tool lifted,
FIG. 6 shows the lifting mechanism of FIG. 5 with the locking mechanism actuated, and
fig. 7 shows the lifting mechanism of fig. 6 performing powered lifting.
Like parts are identified by like reference numerals throughout the drawings.
Detailed Description
Fig. 1 shows a packaging machine 100A of a deep drawing packaging machine 20 configured for intermittent operation. The deep drawing packaging machine 20 has a forming station 21, a sealing station 22, a transverse cutting device 23 and a longitudinal cutting device 24 arranged in succession in the production direction R on a frame 25. On the input side, a feed roller 26 from which the lower film 27 is pulled out is located on the frame 25. Furthermore, the deep drawing packaging machine 20 has a conveyor chain 28, which conveyor chain 28 grips the lower film 27 and conveys it further in the production direction R in each main working cycle.
In the embodiment shown, the forming station 21 is configured as a deep drawing station in which the groove M is formed in the lower film 27 by deep drawing, for example by means of compressed air and/or vacuum. The molding station 21 may be configured such that a plurality of grooves M are adjacently formed in a direction perpendicular to the production direction R.
Downstream of the forming station 21 in the production direction R, a filling path or loading zone 29 is provided along which the packaging groove M is filled with product. The packaging slot M may be filled manually by an operator or mechanically by a pick-up.
The sealing station 22 has a hermetically sealable chamber 22a in which chamber 22a the atmosphere in the packaging tank M can be evacuated and/or replaced, for example by gas purging (gas purging) with exchange gas or with a gas mixture, before sealing with the upper film 31 dispensed from the film holder 30.
The transverse cutting device 23 may be configured as a punch which cuts through the lower film 27 and the upper film 31 between adjacent packaging slots M in a direction transverse to the production direction R. In this process, the transverse cutting device 23 is operated in such a way that the lower film 27 is not cut over its entire width, but is not cut at least in the edge regions. This enables controlled forward transport through the transport chain 28.
The longitudinal cutting device 24 may be configured as a knife with which the lower film 27 and the upper film 31 are cut between adjacent packaging slots M and at the side edges of the lower film 27 in the production direction R, so that there are separate packages V downstream of the longitudinal cutting device 24.
The deep drawing packaging machine also has a control device 32. This has the task of controlling and monitoring the processes running in the deep drawing packaging machine 20. The display device 33 is used for displaying the processing sequence in the deep-drawing packaging machine 20 to an operator or for influencing the processing sequence in the deep-drawing packaging machine 20 by an operator.
Fig. 2 shows another type of packaging machine 100B, which is a tray sealer 40. Such a tray sealer 40 is also referred to in the industry as a tray sealer. The tray sealing machine 40 has a feed conveyor 41, and the pre-tray portion 42 is conveyed on the feed conveyor 41. In addition, the tray sealer 40 has a gripping device 43. By means of the gripping device 43, the pallet section 42 provided on the feed conveyor 41 can be picked up and transferred to the sealing station 44 of the pallet sealing machine 40 for the sealing process. The tray portion 42 received therein is sealed with an upper film 45 fed through a sealing station 44. After the sealing process, the sealed tray portion 42 is picked up by the gripping device 43 and transferred to the output conveyor 46 of the tray sealing machine 40.
Fig. 3 shows the lifting mechanism 100 and the tool 50 which can be adjusted to the open position S1 by means of it. The lifting mechanism 100 has a base plate 1, and in an open position S1, the base plate 1 is supported on a frame (e.g., a frame 25 of fig. 1) by means of a tie rod 2 and a holding plate 3. A lift plate 4 in which at least one film 5 is integrated is mounted on the base plate 1. A tool lower part 6, which is configured, for example, as a gland, is located on the lifting plate 4.
A cylinder piston 7a of the lifting cylinder 7 is attached to the base plate 1, the cylinder piston 7a being in a retracted state in the open position S1 of fig. 3. The lifting cylinder 7 lifts and lowers a tool holder 10, on which a tool upper part 11 (for example, a sealing tool upper part) is mounted, by means of a cylinder plate 8 formed thereon and at least one tie rod 9 standing thereon.
Further, in fig. 3, a stopper 12 and a locking mechanism 13 are shown. The function thereof will be described later with reference to fig. 4 to 7.
To close the tool 50, the lifting cylinder 7 is first extended from the adjustment shown in fig. 3. This is shown in fig. 4. The lift cylinder 7 is supported on the base plate 1. When the lift cylinder 7 is extended, the cylinder plate 8 and the tie rod 9 are lowered in the direction F1, bringing the tool holder 10 into contact with the stopper 12. The stop 12 can be adjusted so that the tool upper part 11 stops when it sits flush on the upper membrane 31, 45.
When the tool holder 10 sits on the stop 12, the lifting movement of the tool upper part 11 in the direction F1 is stopped and a load change occurs, i.e. the lowering movement of the tool lower part 6 starts. This is shown in fig. 5. The tie rod 2 is relieved of load and the stopper 12 is loaded with the weight of the entire lifting mechanism 100. In addition to the load change, the lift cylinder 7 protrudes in the direction F2 until the base plate 1 with the tool lower part 6 comes into contact with the tool upper part 11.
In fig. 5, the tool upper part 11 and the tool lower part 6 are moved towards each other to the greatest extent by means of the lifting cylinder 7. In this position, the locking mechanism 13 (in particular the blocking element 13a formed thereon) is positioned between the base plate 1 and the cylinder plate 8 by means of a linear or pivotal movement. This is shown in fig. 6.
In order to establish a pretension between the tool lower part 6 and the tool upper part 11, at least one membrane 5 contained in the lifter plate 4 is pressurized such that it clamps the substrate 1 to the locking mechanism 13. In this process, the lift plate 4 is supported by the base plate 1 in the direction F3, and thus the lift mechanism 100 reaches the closed position S2 as shown in fig. 6 to perform a working process, such as a sealing process.
After the locking mechanism 13 has been clamped against the cylinder plate 8, a force flow is generated between the membrane 5, the lifter plate 4, the tool lower part 6, the tool upper part 11, the tool holder 10, the tie rods 9, the cylinder plate 8, the locking mechanism 13 and the base plate 1. The lift cylinder 7 does not generate any part of the closing force of the lift mechanism 100 established in this process, so to speak, remains coupled with the dynamic lift. The weight of the lifting mechanism 100 is placed on the stopper 12.
The lift mechanism 100 provides the advantage that the power lift and travel lift are performed in a decoupled manner from each other. Therefore, the lifting cylinder 7 only needs to move the weight force, and the power lifting only needs to cover a short distance, so that the optimal use of the membrane 5 can be achieved. Thus, relatively low forces can be applied to the lifting cylinders 7, which means that they can be constructed smaller and can thus be controlled with low energy consumption. Overall, this results in a cost-effective construction and operation of the lifting cylinders 7.
Claims (8)
1. Lifting mechanism for opening and closing a tool (50) of a packaging machine (100A, 100B), characterized in that the lifting mechanism (100) comprises at least one first lifting means and at least one second lifting means, which can be continuously actuated to move the lifting mechanism (100) from an open position (S1) to a closed position (S2), wherein the first lifting means is decoupled from load absorption by means of the second lifting means for closing the tool (50), the lifting mechanism (100) comprising at least one adjustable locking mechanism (13) for force-dependent decoupling of the first lifting means from a force flow caused by the second lifting means.
2. Lifting mechanism according to claim 1, characterized in that the locking mechanism (13) for force-dependent decoupling of the first lifting device from the force flow caused by the second lifting device is clampable by at least one component formed on the first lifting device.
3. A lifting mechanism according to claim 1 or 2, characterized in that the locking mechanism (13) comprises an adjustment drive which can be controlled separately from the first lifting means and the second lifting means.
4. Lifting mechanism according to claim 1 or 2, characterized in that the lifting mechanism (100) comprises at least one base plate (1) which is supported by a tie rod (2) and is adjustably mounted along the tie rod by means of the first lifting means.
5. The lifting mechanism according to claim 1 or 2, characterized in that the lifting mechanism (100) comprises at least one height-adjustable stop (12) for stopping the lifting movement of the tool holder (10) for supporting the upper tool part (11).
6. Lifting mechanism according to claim 5, characterized in that the first lifting means comprise at least one lifting cylinder (7) with an extendable piston (7 a), which lifting cylinder is controllable for adjusting both the tool upper part (11) and the tool lower part (6) in order to close the tool (50).
7. Lifting mechanism according to claim 6, characterized in that the second lifting means comprise at least one inflatable membrane (5) for lifting the tool lower part (6).
8. Packaging machine in the form of a deep drawing packaging machine (20) or in the form of a tray sealer (40), characterized in that the packaging machine (100A, 100B) comprises at least one lifting mechanism (100) according to any one of claims 1 to 7.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102022107346.7 | 2022-03-29 | ||
| DE102022107346.7A DE102022107346A1 (en) | 2022-03-29 | 2022-03-29 | Hoist mechanism with lock and procedure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220032384U true CN220032384U (en) | 2023-11-17 |
Family
ID=85703788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320637657.3U Active CN220032384U (en) | 2022-03-29 | 2023-03-28 | Lifting mechanism and packaging machine |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20230312153A1 (en) |
| EP (1) | EP4273056A1 (en) |
| CN (1) | CN220032384U (en) |
| DE (1) | DE102022107346A1 (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4216210A1 (en) * | 1992-05-15 | 1993-11-18 | Multivac Haggenmueller Kg | Workstation with an upper part and a lower part movable relative to it |
| DE4216207C1 (en) | 1992-05-15 | 1993-08-19 | Multivac Sepp Haggenmueller Kg, 8941 Wolfertschwenden, De | |
| DE102009008452B3 (en) | 2009-02-11 | 2010-10-07 | Multivac Sepp Haggenmüller Gmbh & Co. Kg | Packaging machine with a workstation having an electric hoist with coarse and fine stroke |
| DE102009052816A1 (en) | 2009-11-13 | 2011-05-19 | Extraplast Maschinen Gmbh | Device for closing and opening press of blow molding machine, has hydraulic drive unit arranged with piston and cylinder in axial direction while moving spindle, where distances of electrical drive and hydraulic drive are added |
-
2022
- 2022-03-29 DE DE102022107346.7A patent/DE102022107346A1/en active Pending
-
2023
- 2023-03-15 EP EP23161983.4A patent/EP4273056A1/en active Pending
- 2023-03-28 CN CN202320637657.3U patent/CN220032384U/en active Active
- 2023-03-29 US US18/127,721 patent/US20230312153A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE102022107346A1 (en) | 2023-10-05 |
| EP4273056A1 (en) | 2023-11-08 |
| US20230312153A1 (en) | 2023-10-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20120289388A1 (en) | Work station for a packaging machine and tool changing method | |
| CN1143794C (en) | Bag filling apparatus and method | |
| US7340871B1 (en) | Web packaging system with ergonomic tooling change | |
| US20100175350A1 (en) | Web Packaging System with Ergonomic Forming Plug Change | |
| US9708083B2 (en) | Thermoform packaging machine and method | |
| ITBO980244A1 (en) | AUTOMATIC MACHINE FOR THE PRODUCTION, FOR THE CONTROL, FOR THE FILLING AND CAPPING OF THERMOPLASTIC BOTTLES. | |
| CA2445607A1 (en) | Bag presenter for a packaging machine | |
| US4006576A (en) | Apparatus for packaging flat flexible workpieces, particularly bags or sacks, in enveloping bags | |
| CN114030691B (en) | Automatic packing machine | |
| KR101932907B1 (en) | Feeding and loading unit | |
| TWI635993B (en) | Machine for processing elements in sheet form | |
| US20120023865A1 (en) | Packaging machine comprising a plurality of work stations | |
| JP2000128125A (en) | Apparatus for inserting product into packing container | |
| CN220032384U (en) | Lifting mechanism and packaging machine | |
| KR20130093533A (en) | Deaeration, sealing method and sealing device for bag | |
| US10472112B2 (en) | Thermoform packaging machine with strip punch unit | |
| EP2396225B1 (en) | Packaging machine designed for the compression and packing of blocks of expanded material | |
| CN112620998B (en) | Building templates welding system | |
| KR101669053B1 (en) | Automatic packaging system of paper block | |
| US9573337B2 (en) | Deep-drawing packaging machine with lifting device | |
| CN112777048A (en) | Flat bag sealing device | |
| JPS5859125A (en) | Stacking device | |
| JP2000168957A (en) | Automatic stacking device for box package | |
| CN213737016U (en) | Power assisting device for packaging process | |
| KR20170036581A (en) | Ribbon rubber loading device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |