CN113581552A - Automatic bag feeding device - Google Patents
Automatic bag feeding device Download PDFInfo
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- CN113581552A CN113581552A CN202110770538.0A CN202110770538A CN113581552A CN 113581552 A CN113581552 A CN 113581552A CN 202110770538 A CN202110770538 A CN 202110770538A CN 113581552 A CN113581552 A CN 113581552A
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- Prior art keywords
- bag
- opening
- packaging
- frame
- adjusting
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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
- B65B43/12—Feeding flexible bags or carton blanks in flat or collapsed state; Feeding flat bags connected to form a series or chain
- B65B43/14—Feeding individual bags or carton blanks from piles or magazines
- B65B43/16—Feeding individual bags or carton blanks from piles or magazines by grippers
- B65B43/18—Feeding individual bags or carton blanks from piles or magazines by grippers by suction-operated grippers
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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
- B65B43/26—Opening or distending bags; Opening, erecting, or setting-up boxes, cartons, or carton blanks
- B65B43/30—Opening or distending bags; Opening, erecting, or setting-up boxes, cartons, or carton blanks by grippers engaging opposed walls, e.g. suction-operated
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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
- B65B57/00—Automatic control, checking, warning, or safety devices
- B65B57/10—Automatic control, checking, warning, or safety devices responsive to absence, presence, abnormal feed, or misplacement of articles or materials to be packaged
- B65B57/12—Automatic control, checking, warning, or safety devices responsive to absence, presence, abnormal feed, or misplacement of articles or materials to be packaged and operating to control, or stop, the feed of wrapping materials, containers, or packages
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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
- B65B57/00—Automatic control, checking, warning, or safety devices
- B65B57/18—Automatic control, checking, warning, or safety devices causing operation of audible or visible alarm signals
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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
- B65B59/00—Arrangements to enable machines to handle articles of different sizes, to produce packages of different sizes, to vary the contents of packages, to handle different types of packaging material, or to give access for cleaning or maintenance purposes
- B65B59/003—Arrangements to enable adjustments related to the packaging material
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Supplying Of Containers To The Packaging Station (AREA)
Abstract
The invention discloses an automatic bag feeding device, which is used for being internally arranged in a main frame of a vacuum packaging machine, and comprises: the bag placing positioning component is arranged on the mounting frame, and a bag outlet is formed in the bottom of the bag placing positioning component. The mounting frame is also provided with a bag suction and conveying mechanism, a bag opening mechanism, a controller and a vacuumizing device connected with the controller, the bag suction and conveying mechanism is positioned below the bag placing positioning component, the bag opening mechanism is positioned at the discharge end of the bag suction and conveying mechanism, and the bag suction and conveying mechanism is used for sucking the bottommost packaging bag tightly and then drawing the packaging bag out of the bag outlet and transferring the packaging bag to the bag opening mechanism. The bag opening mechanism is used for tightly sucking the opposite two surfaces of the packaging bag which is sent to the station of the bag opening mechanism and then reversely moving the packaging bag to open the opening of the packaging bag, so that the subsequent bag grabbing and feeding operation can be carried out. The automatic bag feeding device can save a large amount of installation space, has a compact structure, ensures the integration of the whole machine, and has the advantages of simple structure, low requirement on manufacturing precision and low requirement on later assembly precision.
Description
Technical Field
The invention relates to the field of vacuum packaging machines, in particular to an automatic bag feeding device.
Background
The vacuum packaging machine can be divided into a manual bag feeding vacuum packaging machine and an automatic bag feeding vacuum packaging machine according to a bag feeding mode, when the manual bag feeding vacuum packaging machine carries out packaging processing, an operator must be arranged to manually feed bags in front of the machine to complete packaging processing, but when the automatic bag feeding vacuum packaging machine carries out processing, only one bag placing action needs to be completed, the automatic bag feeding device can replace manual bag feeding action, the operation of the operator is not required to be carried out in front of the machine constantly, and the labor cost is saved.
At present, the automatic bag conveying device in the market basically adopts chain wheel and chain transmission, and the packaging bags are stacked and conveyed to a positioning position through the operation of a speed reduction motor, then the packaging bags are placed on a second conveying device through a sucking disc, and finally the packaging bags are conveyed to a bag opening sucking disc through the second conveying device so as to complete subsequent operation.
This automatic bag device that send now need set up solitary external workstation, lead to unable and vacuum packaging machine to assemble overall structure, and overall structure contains transmission structures such as more chain, sprocket, and the structure is very complicated, the preparation required precision is high, later stage assembly precision also requires high, lead to manpower, the material resources required cost too high, the processing difficulty, processing and assembly precision are difficult to guarantee, and then the action precision is low, need often maintain, and the action is complicated, maintain the operation difficulty.
Disclosure of Invention
The invention provides an automatic bag feeding device, which aims to solve the technical problems that the conventional automatic bag feeding device cannot be assembled with a vacuum packaging machine into an integral structure, has a very complex structure, high manufacturing precision requirement, high later-stage assembly precision requirement and low action precision, needs frequent maintenance, has complex action and is difficult to maintain and operate.
The technical scheme adopted by the invention is as follows:
an automatic bag feeding device for built-in mounting in a main frame of a vacuum packaging machine, comprising: the mounting frame is used for being connected with the main frame, the mounting frame is provided with bag placing and positioning components used for vertically stacking and positioning packaging bags of different types and/or different sizes, and the bottom of each bag placing and positioning component is provided with a bag outlet so that the packaging bags vertically stacked and positioned can be sequentially drawn out from the bag outlet; the mounting rack is also provided with a bag suction and delivery mechanism, a bag opening mechanism, a controller and a vacuumizing device connected with the controller, the bag suction and delivery mechanism is positioned below the bag placing positioning component, the bag opening mechanism is positioned at the discharge end of the bag suction and delivery mechanism, and the bag suction and delivery mechanism is respectively connected with the controller and the vacuumizing device and is used for sucking the bottommost packaging bag tightly and then drawing out the packaging bag from a bag outlet and transferring the packaging bag to the bag opening mechanism; the bag opening mechanism is respectively connected with the controller and the vacuum extractor so as to suck and tightly convey the bags to two opposite sides of the packaging bags at the station and then move reversely to open the openings of the packaging bags, so that the subsequent bag grabbing and feeding operations can be carried out.
Furthermore, the mounting frame is frame-shaped and comprises an upper layer frame, a bottom layer frame and an extension frame, wherein the upper layer frame and the bottom layer frame are arranged oppositely up and down, and the extension frame is connected to one end of the upper layer frame and one end of the bottom layer frame; the bag placing and positioning component is arranged on the upper layer frame; the bag sucking and conveying mechanism is arranged on the bottom layer frame; the bag opening mechanism is arranged on the extending frame.
Furthermore, the upper layer frame is in a hollow square shape; the bag placing positioning component comprises a bag placing positioning frame arranged on the upper layer frame, and a frame cavity of the bag placing positioning frame is used for vertically stacking and positioning the packaging bags; the bag placing positioning frame is connected with a hand wheel adjusting component which is used for adjusting the volume of the frame cavity under the action of external force so as to adapt to vertical stacking positioning of packaging bags of different types and/or sizes.
Furthermore, the bag placing positioning frame comprises two adjusting slide rails, two sliding fixing blocks connected to the adjusting slide rails in a sliding manner, two connecting bottom plates, two adjusting bottom plates and a plurality of adjusting baffles; the two adjusting slide rails are respectively arranged on the two width edges of the upper layer frame and extend along the width edges; the two connecting bottom plates are arranged in parallel at intervals, two ends of each connecting bottom plate are respectively connected with two corresponding sliding fixed blocks on the two adjusting slide rails, and the two sliding fixed blocks on one adjusting slide rail are respectively connected with the hand wheel adjusting component, so that the two sliding fixed blocks respectively drive the two connecting bottom plates to relatively approach or relatively move away along the adjusting slide rails under the adjustment of the hand wheel adjusting component, and the supporting width of the bag placing positioning frame on the packaging bag is adjusted; the two adjusting bottom plates are positioned between the two connecting bottom plates and are respectively connected with the two width edges in an adjustable mode so as to adjust the supporting length of the bag placing positioning frame to the packaging bag; the plurality of adjusting baffles are vertically arranged and are respectively fixed with the connecting bottom plate and the adjusting bottom plate so as to adjust the supporting height of the bag placing positioning frame on the packaging bag, and the connecting bottom plate, the adjusting bottom plate and the adjusting baffles enclose a frame cavity.
Furthermore, the support width of the connecting bottom plate to the length edge of the packaging bag is 6-10 mm; the support width of the adjusting bottom plate close to the bag opening mechanism to the width edge of the packaging bag is 15-20 mm, and the support width of the other opposite adjusting bottom plate to the width edge of the packaging bag is 30-40 mm.
Furthermore, the hand wheel adjusting component comprises an adjusting base arranged on the width edge of the upper layer frame, a positive and negative screw rod penetrating through the adjusting base and an operating hand wheel connected to the end part of the positive and negative screw rod; the adjusting base is positioned between the two connecting bottom plates; after two ends of the positive and negative screw rods respectively extend out of the adjusting base, the two ends are respectively in positive and negative threaded connection with the two sliding fixing blocks correspondingly arranged.
Further, the bag sucking and conveying mechanism comprises a bag sucking mechanism for sucking the bottommost packaging bag and a bag conveying mechanism for conveying the packaging bag sucked tightly by the bag sucking mechanism to the bag opening mechanism; the bag feeding mechanism comprises a bag feeding slide rail fixed on the bottom layer frame, an installation support connected to the bag feeding slide rail in a sliding manner, an installation support plate fixedly supported on the bottom layer frame, and a bag feeding driving cylinder arranged on the installation support plate, wherein the driving end of the bag feeding driving cylinder is fixed with the installation support, and the bag feeding driving cylinder is connected with the controller; the bag suction mechanism comprises a bag suction driving cylinder vertically arranged on the mounting support, a first mounting plate connected to the top end of the bag suction driving cylinder, and a bag suction disc set arranged on the first mounting plate, the bag suction driving cylinder is connected with the controller, and the bag suction disc set is connected with the vacuum extractor.
Furthermore, the first mounting plate is T-shaped and comprises a head plate and an extension plate vertically connected with the head plate; the bag sucking disc group comprises first bag sucking discs which are sequentially arranged at intervals along the length direction of the head plate, and the first bag sucking discs are arranged corresponding to the opening end of the packaging bag and used for tightly sucking the outer bag surface of the opening section of the packaging bag to prevent the opening end of the packaging bag from being laid down to further influence the opening; inhale bag dish group and still include along the length direction of extension board second of interval setting in proper order and inhale a bag sucking disc, the second inhales a bag sucking disc and corresponds wrapping bag body length direction and sets up to be used for tightly inhaling the outer bag face of wrapping bag body.
Further, the bag opening mechanism comprises an upper bag opening plate group and a lower bag opening plate group which are oppositely arranged up and down, a second mounting plate connected with the upper bag opening plate group, an upper bag opening member connected with the second mounting plate, a third mounting plate connected with the lower bag opening plate group, and a lower bag opening member connected with the third mounting plate; the upper bag opening plate group and the lower bag opening plate group are respectively connected with a vacuum extractor; the upper bag opening member and the lower bag opening member are respectively connected to the mounting frame and are respectively connected with the controller so as to drive the corresponding upper bag opening disc set and the lower bag opening disc set to relatively close or relatively separate.
Further, the bag opening mechanism also comprises a buffer plate for preventing the opening of the packaging bag from falling down; the buffer board is vertical to be set up on extending the frame, and the upper end of buffer board upwards extends when towards bag dish group slope under to bag dish group's top under the higher authority, and then smoothly guide the open end of wrapping bag to the top of bag dish group under.
Further, the vacuum-pumping device is a vacuum pump; the controller comprises a PLC, a negative pressure detector for detecting the negative pressure of the loop, bag opening detectors arranged in the first bag opening driving cylinder and the third bag opening driving cylinder, a bag conveying detector arranged in the bag conveying driving cylinder, a bag suction detector arranged in the bag suction driving cylinder and a bag shortage detector connected to the mounting support plate; the negative pressure detector, the bag opening detector, the bag feeding detector, the bag suction detector and the bag shortage detector are respectively connected with the PLC.
The invention has the following beneficial effects:
the automatic bag feeding device disclosed by the invention realizes full-automatic bag feeding, the bag feeding operation is smooth, only the packaging bags need to be vertically stacked and positioned on the bag placing positioning component manually in the whole bag feeding process, the automation degree is high, and a large amount of time and labor cost are saved; according to the automatic bag feeding device, the bag placing and positioning component can be used for vertically stacking and positioning packaging bags of different types and/or different sizes, so that the adaptive object of the bag feeding device is greatly widened, and the bag feeding of the packaging bags of different types and/or different sizes is met; the automatic bag feeding device is internally installed in the main frame of the vacuum packaging machine without a separate external workbench, and is used as an assembling element during assembling, the automatic bag feeding device is integrally assembled firstly, and then is directly assembled into the main frame of the vacuum packaging machine after being assembled, so that a large amount of installation space can be saved, the integration of the whole machine is ensured, the structure of the bag feeding device does not contain a chain, a chain wheel and other transmission structures, the structure is simple, the requirement on manufacturing precision is low, the requirement on later assembling precision is low, the cost of required manpower and material resources is lower, the processing is simple, the processing and assembling precision is easy to ensure, the action precision is high, frequent maintenance is not needed, the action process is simple, and the maintenance operation is simple.
In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below with reference to the drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic three-dimensional structure of an automatic bag feeder according to a preferred embodiment of the present invention;
FIG. 2 is a schematic front view of the structure of FIG. 1;
FIG. 3 is a schematic three-dimensional structure of the bag positioning member of FIG. 1;
FIG. 4 is a schematic diagram of the automatic bag feeder of FIG. 1;
fig. 5 is a control schematic diagram of the automatic bag feeding apparatus of fig. 1.
Description of the figures
10. A mounting frame; 11. an upper shelf; 12. a bottom shelf; 13. a stretching frame; 20. a bag placing and positioning component; 201. bag outlet; 21. placing a bag positioning frame; 211. adjusting the slide rail; 212. connecting the bottom plate; 213. adjusting the bottom plate; 214. adjusting the baffle; 215. sliding the fixed block; 22. a hand wheel adjustment member; 221. an adjusting base; 222. a positive and negative screw rod; 223. operating a hand wheel; 30. a bag opening mechanism; 31. opening a bag plate group upwards; 32. a bag plate group is opened downwards; 33. a second mounting plate; 34. a first bag opening driving cylinder; 35. a third mounting plate; 36. a third bag opening driving cylinder; 37. a buffer plate; 38. installing a sliding block; 39. a second bag opening driving cylinder; 40. a bag suction mechanism; 41. a suction bag driving cylinder; 42. a first mounting plate; 43. a bag sucking disc group; 50. a bag feeding mechanism; 51. a bag feeding slide rail; 52. mounting a support; 53. mounting a support plate; 54. a bag feeding driving cylinder; 61. a bag missing detector; 70. and (6) packaging the bag.
Detailed Description
The embodiments of the invention will be described in detail below with reference to the accompanying drawings, but the invention can be embodied in many different forms, which are defined and covered by the following description.
Referring to fig. 1, a preferred embodiment of the present invention provides an automatic bag feeding apparatus for built-in installation in a main frame of a vacuum packing machine, the automatic bag feeding apparatus including: the bag placing and positioning device comprises a mounting frame 10 used for being connected with a main frame, wherein a bag placing and positioning component 20 used for vertically stacking and positioning packaging bags of different types and/or different sizes is arranged on the mounting frame 10, and a bag outlet 201 is formed in the bottom of the bag placing and positioning component 20 so that the packaging bags vertically stacked and positioned can be sequentially and outwards drawn out from the bag outlet 201. The mounting rack 10 is further provided with a bag suction and delivery mechanism, a bag opening mechanism 30, a controller and a vacuum device connected with the controller, the bag suction and delivery mechanism is located below the bag placing positioning member 20, the bag opening mechanism 30 is located at the discharge end of the bag suction and delivery mechanism, and the bag suction and delivery mechanism is respectively connected with the controller and the vacuum device and used for sucking the bottommost packaging bag tightly and then drawing out the packaging bag from the bag outlet 201 and transferring the packaging bag to the bag opening mechanism 30. The bag opening mechanism 30 is connected with the controller and the vacuum extractor respectively, so as to suck and tightly convey the opposite sides of the packaging bag at the station and then move reversely to open the opening of the packaging bag, thereby facilitating the subsequent bag grabbing and feeding operation.
When the automatic bag conveying device works, a plurality of packing bags are vertically stacked and positioned on the bag placing positioning member 20 by manpower, then the controller correspondingly controls the bag sucking and conveying mechanism and the vacuumizing device to act according to a preset program, so that the bag sucking and conveying mechanism firstly moves to the position below the bag placing positioning member 20, then continuously moves upwards and extends into the bag opening 201, simultaneously carries out vacuum adsorption on the bottommost packing bag, then the bag sucking and conveying mechanism moves downwards and then translates, the tightly sucked packing bag is conveyed to the feeding station of the bag opening mechanism 30, the controller correspondingly controls the bag opening mechanism 30 and the vacuumizing device to act according to the preset program, the bag opening mechanism 30 acts, sucks and conveys the packing bag to the two opposite sides of the packing bag at the station and then moves reversely, the opening of the packing bag is opened, the bag grabbing and bag feeding operation is carried out later, and then the bag conveying operation of the packing bag is finished, the controller controls the vacuumizer, the bag sucking and conveying mechanism and the bag opening mechanism 30 to return to the initial state for the next bag conveying operation.
The automatic bag feeding device disclosed by the invention realizes full-automatic bag feeding, the bag feeding operation is smooth, the packaging bags only need to be vertically stacked and positioned on the bag placing positioning component 20 manually in the whole bag feeding process, the automation degree is high, and a large amount of time and labor cost are saved; according to the automatic bag feeding device, the bag placing and positioning component 20 can be used for vertically stacking and positioning packaging bags of different types and/or different sizes, so that the adaptive object of the automatic bag feeding device is greatly widened, and the requirement of feeding the packaging bags of different types and/or different sizes is met; the automatic bag feeding device is internally installed in the main frame of the vacuum packaging machine without a separate external workbench, and is used as an assembling element during assembling, the automatic bag feeding device is integrally assembled firstly, and then is directly assembled into the main frame of the vacuum packaging machine after being assembled, so that a large amount of installation space can be saved, the integration of the whole machine is ensured, the structure of the bag feeding device does not contain a chain, a chain wheel and other transmission structures, the structure is simple, the requirement on manufacturing precision is low, the requirement on later assembling precision is low, the cost of required manpower and material resources is lower, the processing is simple, the processing and assembling precision is easy to ensure, the action precision is high, frequent maintenance is not needed, the action process is simple, and the maintenance operation is simple.
Alternatively, as shown in fig. 1 and 2, the mounting frame 10 is a frame type, and includes an upper frame 11 and a lower frame 12 which are disposed opposite to each other in an up-down direction, and an extension frame 13 connected to one ends of the upper frame 11 and the lower frame 12. The bag placing and positioning component 20 is arranged on the upper layer frame 11, the bag sucking and conveying mechanism is arranged on the bottom layer frame 12, and the bag opening mechanism 30 is arranged on the extending frame 13. The structure of the mounting rack 10 not only makes the whole structure simple and easy to manufacture and install, but also makes the structure layout of the bag placing and positioning member 20, the bag sucking and conveying mechanism and the bag opening mechanism 30 compact and reasonable, and further makes the whole structure of the automatic bag conveying device compact and the required installation space small.
In this alternative, as shown in fig. 1, the upper shelf 11 has a hollow square shape. The bag placing positioning component 20 comprises a bag placing positioning frame 21 arranged on the upper layer frame 11, and a frame cavity of the bag placing positioning frame 21 is used for vertically stacking and positioning the packaging bags. The bag placing positioning frame 21 is connected with a hand wheel adjusting component 22, and the hand wheel adjusting component 22 is used for adjusting the volume of the frame cavity under the action of external force so as to adapt to vertical stacking positioning of packaging bags of different types and/or sizes. The bag placing positioning component 20 of the invention adjusts the volume of the cavity of the frame of the bag placing positioning frame 21 by adjusting the hand wheel adjusting component 22, so that the bag placing positioning component can vertically stack and position packaging bags of different types and/or sizes, further the adaptive object of the bag feeding device of the invention is greatly widened, and the bag feeding of the packaging bags of different types and/or sizes is met.
In the embodiment of this alternative embodiment, as shown in fig. 3, the bag placing positioning frame 21 includes two adjusting slide rails 211, two sliding fixing blocks 215 slidably connected to the adjusting slide rails 211, two connecting bottom plates 212, two adjusting bottom plates 213, and a plurality of adjusting baffles 214. The two adjusting slide rails 211 are respectively disposed on the two width edges of the upper frame 11 and extend along the width edges. The two connecting bottom plates 212 are arranged in parallel at intervals, two ends of each connecting bottom plate 212 are respectively connected with two corresponding sliding fixed blocks 215 on the two adjusting slide rails 211, and the two sliding fixed blocks 215 on one adjusting slide rail 211 are respectively connected with the hand wheel adjusting member 22, so that the two sliding fixed blocks 215 respectively drive the two connecting bottom plates 212 to relatively approach or relatively move away along the adjusting slide rails 211 under the adjustment of the hand wheel adjusting member 22, and the supporting width of the bag placing positioning frame 21 on the packaging bag is adjusted. Two adjusting bottom plates 213 are located between the two connecting bottom plates 212 and are adjustably connected to the two width edges, respectively, to adjust the supporting length of the bag holding positioning frame 21 for the packing bag. The adjusting baffles 214 are vertically arranged and are respectively fixed with the connecting bottom plate 212 and the adjusting bottom plate 213 so as to adjust the supporting height of the bag placing positioning frame 21 on the packaging bag, and the connecting bottom plate 212, the adjusting bottom plate 213 and the adjusting baffles 214 enclose a frame cavity.
Preferably, as shown in fig. 3, a waist-shaped groove extending in the length direction is formed on the adjusting bottom plate 213, and the position of the connecting edge connecting the adjusting bottom plate 213 and the width edge of the upper shelf 11 in the waist-shaped groove is adjusted, so that the fixing position of the adjusting bottom plate 213 relative to the width edge can be adjusted, and further, the distance between the two adjusting bottom plates 213 is adjusted, so as to adjust the supporting length of the bag placing positioning frame 21 for the packaging bag. The adjusting baffles 214 are vertically arranged and are respectively fixed with the connecting bottom plate 212 and the adjusting bottom plate 213 so as to adjust the supporting height of the bag placing positioning frame 21 on the packaging bag, and the connecting bottom plate 212, the adjusting bottom plate 213 and the adjusting baffles 214 enclose a frame cavity. Preferably, as shown in fig. 1, the adjusting baffle 214 defines the outer boundary of the bag placing and positioning frame 21, i.e. the position of the packaging bag, and a frame cavity for accommodating and positioning the packaging bag is formed by the connecting bottom plate 212, the adjusting bottom plate 213 and the adjusting baffle 214, and the volume of the frame cavity is adjustable.
In the preferred embodiment of this alternative, as shown in fig. 1, the support width of the connecting bottom plate 212 to the length edge of the package bag is 6mm to 10 mm; the support width of the adjustment bottom plate 213 adjacent to the bag opening mechanism 30 to the width side of the packaging bag is 15mm to 20mm, and the support width of the other adjustment bottom plate 213 to the width side of the packaging bag is 30mm to 40 mm. When the vertical stacking of the packaging bags is carried out, a large number of test machine tests are carried out, effect analysis and data summarization of each test are combined, when the supporting parameters of the bag placing positioning frame 21 on the packaging bags are as above, the packaging bags stacked vertically are supported stably, the bottommost packaging bag is easy to be drawn out from the bag outlet 201, the vertical stacking requirements of the rest packaging bags are not influenced in the process of drawing the bottommost packaging bag, and only the bottommost packaging bag is guaranteed to be drawn out each time, and the rest packaging bags are not influenced by the drawn packaging bags; certainly, the negative pressure is set in a matched manner, and when the negative pressure value is-0.03 MPa to-0.1 MPa, the extraction effect of the packaging bag is optimal.
In this alternative embodiment, as shown in fig. 3, the handwheel adjusting member 22 includes an adjusting base 221 disposed on the width edge of the upper rack 11, a forward and backward screw rod 222 inserted into the adjusting base 221, and an operating handwheel 223 connected to the end of the forward and backward screw rod 222. The adjustment base 221 is located between the two connection bases 212. After the two ends of the positive and negative lead screws 222 extend out of the adjusting base 221, the two ends are connected with the two sliding fixing blocks 215 which are correspondingly arranged in a positive and negative threaded manner. When the operation hand wheel 223 is rotated, the operation hand wheel 223 drives the forward and reverse screw rods 222 connected with each other to rotate, and when the forward and reverse screw rods 222 rotate, the two sliding fixing blocks 215 respectively connected with the forward and reverse screws are driven to relatively draw close or move away from each other, so that the two connecting bottom plates 212 are correspondingly driven to synchronously draw close or move away from each other relatively, and the supporting width of the bag placing positioning frame 21 on the packaging bag is adjusted.
Alternatively, as shown in fig. 1 and 2, the bag suction and delivery mechanism includes a bag suction mechanism 40 for sucking the lowermost packaging bag, and a bag delivery mechanism 50 for delivering the packaging bag sucked by the bag suction mechanism 40 to the bag opening mechanism 30. The bag feeding mechanism 50 comprises a bag feeding slide rail 51 fixed on the bottom layer frame 12, an installation support 52 connected to the bag feeding slide rail 51 in a sliding mode, an installation support plate 53 fixedly supported on the bottom layer frame 12, and a bag feeding driving cylinder 54 arranged on the installation support plate 53, wherein the driving end of the bag feeding driving cylinder 54 is fixed with the installation support 52, the bag feeding driving cylinder 54 is connected with a controller, and when the bag feeding mechanism works, the controller controls the bag feeding driving cylinder 54 to stretch and retract, so that the installation support 52 is driven to slide in a reciprocating mode, and bag feeding operation from the bag placing positioning component 20 to the bag opening mechanism 30 is achieved. The bag suction mechanism 40 comprises a bag suction driving cylinder 41 vertically arranged on the mounting support 52, a first mounting plate 42 connected to the top end of the bag suction driving cylinder 41, and a bag suction disc group 43 arranged on the first mounting plate 42, the bag suction driving cylinder 41 is connected with a controller, the bag suction disc group 43 is connected with a vacuum extractor, during operation, the controller controls the bag suction driving cylinder 41 to stretch, and then the bag suction driving cylinder 42 drives the bag suction disc group 43 to vertically lift up and down relative to the vertically stacked packaging bags, when the bag suction disc group 43 rises to be closely attached to the bottommost packaging bag, the controller controls the vacuum extractor to vacuumize the bag suction disc group 43, and the bag suction disc group 43 tightly sucks the bottommost packaging bag 70.
In this alternative, as shown in FIG. 1, the first mounting plate 42 is "T" shaped and includes a head plate and a spreader plate connected perpendicularly to the head plate. Inhale bag dish group 43 and include the first bag sucking disc that sets up along the length direction of head board interval in proper order, first bag sucking disc corresponds the open end setting of wrapping bag to an outer bag face for tightly inhaling wrapping bag opening section prevents that the wrapping bag open end from tatting down and then influence the opening and open. Inhale bag dish group 43 and still include the second of following the length direction of extension board interval setting in proper order and inhale a bag sucking disc, the second inhales a bag sucking disc and corresponds wrapping bag body length direction and sets up to be used for tightly inhaling the outer bag face of wrapping bag body. The structure setting of first mounting panel 42 and the corresponding arrangement of bag dish group 43 that inhales on it not only make overall structure simple, inhale the required quantity of bag sucking disc less, can stabilize effectively and inhale tight wrapping bag, and can effectively prevent the wrapping bag opening section from tatting down, and then improve opening bag efficiency and the bag quality of follow-up wrapping bag.
Alternatively, as shown in fig. 1 and 2, the bag opening mechanism 30 includes an upper bag opening disc group 31 and a lower bag opening disc group 32 which are disposed opposite to each other in the up-down direction, a second mounting plate 33 connected to the upper bag opening disc group 31, an upper bag opening member connected to the second mounting plate 33, a third mounting plate 35 connected to the lower bag opening disc group 32, and a lower bag opening member connected to the third mounting plate 35. The upper bag opening disk set 31 and the lower bag opening disk set 32 are respectively connected with a vacuum extractor. The upper bag opening member and the lower bag opening member are respectively connected to the mounting frame 10, and are respectively connected with the controller, so as to drive the corresponding upper bag opening disc set 31 and the lower bag opening disc set 32 to be relatively close to or relatively separated from each other, during operation, the controller controls the upper bag opening member and the lower bag opening member to act, and further correspondingly drives the upper bag opening disc set 31 and the lower bag opening disc set 32 to be relatively close to or relatively separated from each other through the second mounting plate 33 and the third mounting plate 35, during relative close, the controller controls the vacuumizing device to act, so that the upper bag opening disc set 31 and the lower bag opening disc set 32 relatively tightly suck two outer bag surfaces of the packaging bag, and when the upper bag opening disc set 31 and the lower bag opening disc set 32 are relatively separated from each other, the opening of the packaging bag is opened.
In this alternative, as shown in fig. 1, the bag opening member includes a first bag opening driving cylinder 34 connected to the second mounting plate 33, a mounting slider 38 for mounting the first bag opening driving cylinder 34, a mounting rail for slidably mounting the mounting slider 38, and a second bag opening driving cylinder 39 for driving the mounting slider 38 to operate, the first bag opening driving cylinder 34 is fixed to the mounting slider 38, the mounting slider 38 is slidably mounted on the mounting rail, the mounting slider is connected to a driving end of the second bag opening driving cylinder 39, the mounting rail and the second bag opening driving cylinder 39 are both disposed on the extending frame 13, and the first bag opening driving cylinder 34 and the second bag opening driving cylinder 39 are respectively connected to the controller. The upper bag opening plate group 31 comprises a plurality of upper bag opening suction cups, and the plurality of upper bag opening suction cups are sequentially arranged on the second mounting plate 33 at intervals along the width direction of the packaging bag. During operation, the controller controls the second bag opening driving cylinder 39 to stretch and retract, so as to drive the mounting sliding block 38 connected with the second bag opening driving cylinder to slide on the mounting sliding rail, the mounting sliding block 38 drives the first bag opening driving cylinder 34 to linearly slide, and simultaneously the controller also controls the first bag opening driving cylinder 34 to stretch and retract, so as to drive the second mounting plate 33 connected with the first bag opening driving cylinder to move, so that the upper bag opening disc set 31 slides up and down. By arranging the second bag opening driving cylinder 39 and the first bag opening driving cylinder 34, the sliding stroke of the first bag opening driving cylinder 34 is effectively shortened, and the movement is stable and reliable.
In this alternative, as shown in fig. 1, the lower bag opening member includes a third bag opening actuating cylinder 36 fixed to the third mounting plate 35, and the third bag opening actuating cylinder 36 is connected to the extension frame 13 and is connected to the controller. The lower bag plate group 32 comprises a plurality of lower bag suckers which are sequentially arranged on the third mounting plate 35 at intervals along the width direction of the packaging bag. When the bag opening device works, the controller controls the third bag opening driving cylinder 36 to stretch and retract, and then the third mounting plate 35 drives the lower bag opening plate group 32 connected with the third bag opening driving cylinder to slide up and down.
In the preferred embodiment, as shown in fig. 1, the bag opening mechanism 30 further includes a buffer plate 37 for preventing the opening of the packaging bag from falling down. Buffer board 37 is vertical to be set up on extending frame 13, and the slope of bag dish group 32 is opened towards down in the time of buffer board 37's upper end upwards extends to bag dish group 32's top is opened under the height, and then smoothly guides the open end of wrapping bag to the top of bag dish group 32 under, effectively prevents to couch under the wrapping bag open end and then leads to opening the bag not smooth or the sack is opened and can not be opened. In the embodiment of the preferred embodiment, the included angle between the buffer plate 37 and the horizontal plane is 30-45 °. During the actual action, wrapping bag 70 is at the in-process of left motion, owing to receive suction, the effect of resistance and gravity, deformation can take place, probably lead to the sack tenesmus, bump into the lower bag sucking disc, lead to wrapping bag 70 can't accurately deliver to supreme bag sucking disc of opening and under between the bag sucking disc, so design a buffer board 37 and play the adjustment effect, through a buffering inclined plane, finally the sack can just in time be arranged in under on the bag sucking disc, two open between the bag sucking disc, ensure that follow-up bag opening action is accomplished, and through the experiment of trying on the machine many times, buffer board and horizontal contained angle are when 30 ~ 45, the best effect.
Alternatively, as shown in fig. 4 and 5, the vacuum extractor is a vacuum pump. The controller comprises a PLC, a negative pressure detector for detecting the negative pressure of the loop, bag opening detectors arranged in the first bag opening driving cylinder 34 and the third bag opening driving cylinder 36, a bag feeding detector arranged in the bag feeding driving cylinder 54, a bag suction detector arranged in the bag suction driving cylinder 41 and a bag lack detector 61 connected to the mounting support plate 53. The negative pressure detector, the bag opening detector, the bag feeding detector, the bag suction detector and the bag lack detector 61 are respectively connected with the PLC.
The automatic bag feeding device comprises the following specific working processes:
before the device is normally started, as shown in fig. 1, the packaging bags 70 are vertically stacked on the bag placing positioning member 20, and after the packaging bags are placed, the adjusting baffle 214 is adjusted to enable the stacked packaging bags to be fixed, and then the device can be normally started.
Starting the equipment, wherein the bag suction driving cylinder 41, namely an air cylinder or an oil cylinder, firstly extends upwards, simultaneously drives the first mounting plate 42 and the bag suction disc group 43 to move upwards together, sucks the packaging bag 70 under the suction action of the first bag suction sucking disc and the second bag suction sucking disc, then the bag suction driving cylinder 41 starts to retract, and simultaneously draws out the packaging bag 70 from the bag outlet 201; then the bag feeding driving cylinder 54 extends leftwards, and the bag sucking driving cylinder 41, the first mounting plate 42 and the bag sucking disc group 43 are driven by the mounting support 52 to feed the sucked packaging bag 70 into the space between the upper bag opening disc group 31 and the lower bag opening disc group 32 under the action of the bag feeding slide rail 51. After the bag feeding detector detects that the bag is fed in place, the first bag opening driving cylinder 34, the second bag opening driving cylinder 39 and the third bag opening driving cylinder 36 move simultaneously to enable the upper bag opening sucker and the lower bag opening sucker to be folded to suck the packaging bag, and then the first bag opening driving cylinder 34 and the third bag opening driving cylinder 36 retract to complete the bag opening action. Finally, the bag feeding driving cylinder 54 starts to retract to the starting position, and a new bag feeding operation can be started again. Preferably, the mounting plate 53 is provided with a bag missing detector 61, i.e. a photoelectric sensor, for detecting whether the packaging bag 70 is used up, so as to remind the customer to put the bag in time.
The bag suction principle is as follows: as shown in fig. 3, the four sides of the packing bag are placed on the coupling bottom plate 212 and the regulating bottom plate 213, first, to ensure that the stacked packing bags 70 do not leak from above; because the packing bag has good ductility and flexibility, when the suction bag sucker sucks the center of the packing bag 70 and pulls downwards, the packing bag can be slightly deformed, four edges are pulled out from the upper connecting bottom plate 212 and the adjusting bottom plate 213, and the rest packing bags 70 are continuously pressed on the connecting bottom plate 212 and the adjusting bottom plate 213 under the action of gravity, so that the aim of pulling out one packing bag at a time is fulfilled.
An automatic control section: the device consists of a Programmable Logic Controller (PLC), a vacuum pump, a bag suction driving cylinder 41, a bag conveying driving cylinder 54, a first bag opening driving cylinder 34, a second bag opening driving cylinder 39, a third bag opening driving cylinder 36, an upper bag opening plate group 31, a lower bag opening plate group 32, a bag suction plate group 43, a negative pressure detector, a bag opening detector, a bag conveying detector, a bag grabbing detector and a bag shortage detector 61. When the vacuum sucking disc works, the negative pressure detector detects the negative pressure of the system and transmits a negative pressure signal to the PLC, and the PLC starts or stops the vacuum pump according to a set pressure parameter to provide a stable negative pressure air source for the sucking disc; the bag grabbing detector feeds the position of the bag sucking driving cylinder 41 back to the PLC, when the position is correct, the bag sucking driving cylinder 41 is controlled to extend upwards, the PLC controls the bag sucking disc group 43 to suck the packaging bag 70 after the bag sucking driving cylinder 41 extends to the proper position, the PLC controls the bag sucking driving cylinder 41 to retract downwards after the packaging bag is sucked, the packaging bag 70 is pulled out from the bag outlet 201 of the bag placing positioning frame 21, the PLC controls the bag sending driving cylinder 54 to extend forwards after the bag sucking driving cylinder 41 retracts to the proper position, the bag sending detector detects whether the bag is in the proper position, the PLC controls the first bag opening driving cylinder 34 and the second bag opening driving cylinder 39 to extend downwards after the bag is in the proper position, the third bag opening driving cylinder 36 extends upwards, the packaging bag is clamped by the upper bag opening disc group 31 and the lower bag opening disc group 32, the packaging bag is respectively sucked by the upper bag opening disc group 31 and the lower bag opening disc group 32 at the moment, the PLC controls the bag sucking disc group 43 to release the packaging bag, and the first bag opening driving cylinder 34 retracts upwards after the bag sucking disc group 43 releases the packaging bag, The third bag opening driving cylinder 36 retracts downwards to tear the packaging bag open, the bag opening detector detects whether the packaging bag is opened in place or not, the bag feeding mechanism grabs the packaging bag after the packaging bag is opened in place, the PLC controls the upper bag opening plate group 31 and the lower bag opening plate group 32 to release the packaging bag, and the PLC controls the second bag opening driving cylinder 39 to retract upwards and the bag feeding driving cylinder 54 to retract backwards after the bag feeding is completed to complete one cycle. In the working process, if the inner packing bag of the bag placing positioning frame 21 is exhausted, the bag lack detector 61 transmits a signal back to the PLC, the PLC controls the whole mechanism to pause and send out an alarm signal after the current cycle is completed, and the normal work is not recovered until the bag placing positioning frame 21 has a bag.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (11)
1. An automatic bag feeding apparatus for built-in mounting in a main frame of a vacuum packaging machine, comprising:
the bag placing and positioning device comprises a mounting frame (10) used for being connected with the main frame, wherein a bag placing and positioning component (20) used for vertically stacking and positioning packaging bags of different types and/or different sizes is arranged on the mounting frame (10), and a bag outlet (201) is formed in the bottom of the bag placing and positioning component (20) so that the packaging bags vertically stacked and positioned can be sequentially drawn out from the bag outlet (201);
the mounting rack (10) is further provided with a bag suction and conveying mechanism, a bag opening mechanism (30), a controller and a vacuum extractor connected with the controller, the bag suction and conveying mechanism is located below the bag placing positioning member (20), the bag opening mechanism (30) is located at the discharge end of the bag suction and conveying mechanism, and the bag suction and conveying mechanism is respectively connected with the controller and the vacuum extractor and used for sucking the bottommost packaging bag tightly and then extracting the packaging bag from the bag outlet opening (201) and transferring the packaging bag to the bag opening mechanism (30);
the bag opening mechanism (30) is respectively connected with the controller and the vacuum extractor to suck and tightly convey the opposite two surfaces of the packaging bag to the station and then move reversely to open the opening of the packaging bag, so that the subsequent bag grabbing and feeding operation can be carried out.
2. The automatic bag feeding device according to claim 1,
the mounting rack (10) is frame-shaped and comprises an upper layer rack (11) and a bottom layer rack (12) which are arranged oppositely up and down, and an extension rack (13) connected to one end of the upper layer rack (11) and one end of the bottom layer rack (12);
the bag placing positioning component (20) is arranged on the upper layer frame (11);
the bag sucking and conveying mechanism is arranged on the bottom layer frame (12);
the bag opening mechanism (30) is arranged on the extending frame (13).
3. The automatic bag feeding device according to claim 2,
the upper layer frame (11) is in a hollow square shape;
the bag placing positioning component (20) comprises a bag placing positioning frame (21) arranged on the upper layer frame (11), and a frame cavity of the bag placing positioning frame (21) is used for vertically stacking and positioning packaging bags;
put a bag locating frame (21) and be connected with hand wheel adjusting member (22), hand wheel adjusting member (22) are used for adjusting under the exogenic action the volume size of frame cavity to the vertical stack location of adaptation different grade type and/or not unidimensional wrapping bag.
4. The automatic bag feeding device according to claim 3,
the bag placing positioning frame (21) comprises two adjusting slide rails (211), two sliding fixing blocks (215) connected to the adjusting slide rails (211) in a sliding manner, two connecting bottom plates (212), two adjusting bottom plates (213) and a plurality of adjusting baffles (214);
the two adjusting slide rails (211) are respectively arranged on two width edges of the upper layer frame (11) and extend along the width edges;
the two connecting bottom plates (212) are arranged in parallel at intervals, two ends of each connecting bottom plate (212) are respectively connected with the two corresponding sliding fixing blocks (215) on the two adjusting slide rails (211), and the two sliding fixing blocks (215) on one adjusting slide rail (211) are respectively connected with the hand wheel adjusting component (22), so that the two sliding fixing blocks (215) respectively drive the two connecting bottom plates (212) to relatively approach or relatively move away along the adjusting slide rails (211) under the adjustment of the hand wheel adjusting component (22), and the supporting width of the bag placing positioning frame (21) on the packaging bag is adjusted;
the two adjusting bottom plates (213) are positioned between the two connecting bottom plates (212) and are respectively adjustably connected with the two width edges so as to adjust the supporting length of the bag placing positioning frame (21) to the packaging bag;
the polylith adjusting damper (214) is vertical to be set up, and respectively with connecting bottom plate (212) with adjusting bottom plate (213) are fixed, in order to adjust put bag positioning frame (21) to the support height of wrapping bag, just connecting bottom plate (212) adjusting bottom plate (213) and adjusting damper (214) enclose out the frame cavity.
5. The automatic bag feeding device according to claim 4,
the supporting width of the connecting bottom plate (212) to the length edge of the packaging bag is 6-10 mm;
being close to opening bag mechanism (30) adjust bottom plate (213) right the support width on wrapping bag width limit is 15mm ~ 20mm, another relatively adjust bottom plate (213) right the support width on wrapping bag width limit is 30mm ~ 40 mm.
6. The automatic bag feeding device according to claim 4,
the hand wheel adjusting component (22) comprises an adjusting base (221) arranged on the width edge of the upper layer frame (11), a positive and negative screw rod (222) arranged in the adjusting base (221) in a penetrating mode, and an operating hand wheel (223) connected to the end portion of the positive and negative screw rod (222);
the adjusting base (221) is positioned between the two connecting bottom plates (212);
after two ends of the positive and negative screw rods (222) respectively extend out of the adjusting base (221), the two ends are respectively in forward and reverse threaded connection with the two sliding fixing blocks (215) which are correspondingly arranged.
7. The automatic bag feeding device according to claim 2,
the bag sucking and conveying mechanism comprises a bag sucking mechanism (40) for sucking the bottommost packaging bag and a bag conveying mechanism (50) for conveying the packaging bag sucked tightly by the bag sucking mechanism (40) to the bag opening mechanism (30);
the bag feeding mechanism (50) comprises a bag feeding sliding rail (51) fixed on the bottom layer frame (12), an installation support (52) connected to the bag feeding sliding rail (51) in a sliding manner, an installation support plate (53) fixedly supported on the bottom layer frame (12), and a bag feeding driving cylinder (54) arranged on the installation support plate (53), wherein the driving end of the bag feeding driving cylinder (54) is fixed with the installation support (52), and the bag feeding driving cylinder (54) is connected with the controller;
the bag suction mechanism (40) comprises a bag suction driving cylinder (41) vertically arranged on the mounting support (52), a first mounting plate (42) connected to the top end of the bag suction driving cylinder (41), and a bag suction disc set (43) arranged on the first mounting plate (42), the bag suction driving cylinder (41) is connected with the controller, and the bag suction disc set (43) is connected with the vacuum extractor.
8. The automatic bag feeding device according to claim 7,
the first mounting plate (42) is T-shaped and comprises a head plate and an extension plate vertically connected with the head plate;
the bag sucking disc group (43) comprises first bag sucking discs which are sequentially arranged at intervals along the length direction of the head plate, and the first bag sucking discs are arranged corresponding to the opening end of the packaging bag and used for tightly sucking the outer bag surface of the opening section of the packaging bag to prevent the opening end of the packaging bag from falling down and further influencing the opening;
inhale bag dish group (43) still include the edge the bag sucking disc is inhaled to the second that the length direction of extension board interval set up in proper order, the second is inhaled the bag sucking disc and is corresponded wrapping bag body length direction sets up to be used for tightly inhaling the outer bag face of wrapping bag body.
9. The automatic bag feeding device according to claim 7,
the bag opening mechanism (30) comprises an upper bag opening disk group (31) and a lower bag opening disk group (32) which are oppositely arranged up and down, a second mounting plate (33) connected with the upper bag opening disk group (31), an upper bag opening member connected with the second mounting plate (33), a third mounting plate (35) connected with the lower bag opening disk group (32), and a lower bag opening member connected with the third mounting plate (35);
the upper bag opening plate group (31) and the lower bag opening plate group (32) are respectively connected with the vacuum extractor;
the upper bag opening member and the lower bag opening member are respectively connected to the mounting frame (10), and are respectively connected with the controller so as to drive the corresponding upper bag opening disc set (31) and the corresponding lower bag opening disc set (32) to be relatively close to or relatively separated from each other.
10. The automatic bag feeding device according to claim 9,
the bag opening mechanism (30) further comprises a buffer plate (37) for preventing the opening of the packaging bag from falling down;
buffer board (37) vertical set up in on extension frame (13), just when upwards extending, the upper end of buffer board (37) moves towards under bag dish group (32) slope, with higher than the top of bag dish group (32) is down, and then will the open end of wrapping bag smoothly guides extremely the top of bag dish group (32) is down.
11. The automatic bag feeding device according to claim 9,
the vacuum-pumping device is a vacuum pump;
the controller comprises a PLC, a negative pressure detector for detecting the negative pressure of the loop, bag opening detectors arranged in the first bag opening driving cylinder (34) and the third bag opening driving cylinder (36), a bag conveying detector arranged in the bag conveying driving cylinder (54), a bag suction detector arranged in the bag suction driving cylinder (41), and a bag shortage detector (61) connected to the mounting support plate (53);
the negative pressure detector, the bag opening detector, the bag conveying detector, the bag sucking detector and the bag lack detector (61) are respectively connected with the PLC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110770538.0A CN113581552B (en) | 2021-07-08 | 2021-07-08 | Automatic bag feeding device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110770538.0A CN113581552B (en) | 2021-07-08 | 2021-07-08 | Automatic bag feeding device |
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| CN113581552A true CN113581552A (en) | 2021-11-02 |
| CN113581552B CN113581552B (en) | 2023-04-18 |
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| CN203372434U (en) * | 2013-06-19 | 2014-01-01 | 合肥三冠机电设备有限公司 | Packing machine vertical bag feeding mechanism |
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