CN216660510U - Wrapping bag loading attachment - Google Patents

Abstract

The utility model discloses a packaging bag feeding device which comprises a material disc, a material conveying device and a material conveying device, wherein the material disc is used for containing packaging bags, and a limiting device is arranged on the material disc to limit the packaging bags; the transfer mechanism is arranged above the material tray, and a transfer tray is arranged beside the material tray; the transfer mechanism comprises a transfer driving part and a plurality of second suckers, the second suckers are connected with the transfer driving part, and the transfer driving part is used for driving the second suckers to move, so that the second suckers can suck the packaging bag from the material tray and transfer the packaging bag to the transfer tray; the upper surface of the transfer disc is provided with a plurality of first suckers for sucking the packaging bags, and the transfer disc is connected with a movable driving piece so as to transfer the packaging bags to a position to be processed. According to the packaging bag feeding device provided by the utility model, a large-size packaging bag can be taken out, and the large packaging bag is used for accommodating a plurality of bundled noodles, so that the finished noodles can be conveniently conveyed and transferred in a large batch.

Description

Wrapping bag loading attachment

Technical Field

The utility model relates to the technical field of packaging equipment, in particular to a packaging bag feeding device.

Background

China is a large country for noodle consumption, noodles are one of main wheaten foods in people's lives, in order to meet the demand of people for noodle purchase, a large amount of finished noodles need to be stored in supermarkets and food purchase places, the automatic production of noodles in China has already formed a quite large scale, the pressing, airing, cutting and the like of noodles at the front end of a production link can be automatically operated without people, but the packaging after production needs a large amount of labor.

The conventional noodle packaging mode is mostly bundled and bundled according to standard weight, and is bundled by paper or plastic materials to form noodles which are commonly bundled and bundled for sale in supermarkets, but the package is small and scattered, is inconvenient to carry and transfer when a large amount of goods are delivered and delivered, and is easy to break and scatter in the transfer process.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the utility model provides a packaging bag feeding device which can take out a large-size packaging bag, wherein the large packaging bag is used for accommodating a plurality of bundles of noodles, and is convenient for carrying and transferring finished noodles in large batch.

The packaging bag feeding device comprises a material tray for containing packaging bags, wherein a limiting device is arranged on the material tray to limit the packaging bags; the transfer mechanism is arranged above the material tray, and a transfer tray is arranged beside the material tray; the transfer mechanism comprises a transfer driving part and a plurality of second suckers, the second suckers are connected with the transfer driving part, and the transfer driving part is used for driving the second suckers to move, so that the second suckers can suck the packaging bag from the material tray and transfer the packaging bag to the transfer tray; the upper surface of the transfer disc is provided with a plurality of first suckers for sucking the packaging bags, and the transfer disc is connected with a movable driving piece so as to transfer the packaging bags to a position to be processed.

The packaging bag feeding device provided by the embodiment of the utility model at least has the following technical effects: set up a plurality of first sucking discs on the transfer dish, set up a plurality of second sucking discs on transferring the driving piece, can hold large size wrapping bag, prevent to drop. When the packaging bag is put down, the second sucker returns to the initial position above the material tray; the transfer disc is connected with a movable driving piece which can drive the transfer disc to move front and back and left and right, and after the packaging bags are adsorbed on the transfer disc, the transfer disc is controlled to move in the horizontal direction, so that the packaging bags can be transferred to a position to be processed.

According to some embodiments of the utility model, the limiting device comprises a limiting plate and a limiting seat, the limiting plate is fixed on one side of the material tray, the limiting seat is movably arranged on one side of the material tray opposite to the limiting plate, the packaging bag is arranged between the limiting plate and the limiting seat, and the limiting seat can move inwards from the outer side of the material tray and is fixed through a fastener so as to limit the packaging bag.

According to some embodiments of the utility model, the limiting seat is provided with a limiting groove, the limiting groove extends along the moving direction of the limiting seat, the charging tray is correspondingly provided with a limiting hole, the limiting hole can be aligned with the limiting groove, and the fastening piece can penetrate through the limiting groove and extend into the limiting hole so as to fix the limiting seat on the charging tray.

According to some embodiments of the utility model, the movable end of the transfer driving member is connected to the suction plate, the second suction cup is connected to the suction plate through a guide rod, a spring is sleeved on the guide rod, one end of the spring is connected to the suction plate, and the other end of the spring is connected to the second suction cup.

According to some embodiments of the utility model, the transfer driving member comprises a first lifting driving member and a horizontal driving member, the first lifting driving member is connected with the suction plate and used for driving the second sucker to lift so as to suck the packaging bag; the horizontal driving piece is connected with the first lifting driving piece and used for driving the first lifting driving piece and the second sucker to move horizontally so as to transfer the packaging bag.

According to some embodiments of the utility model, the device further comprises a bin, the top of the bin is opened, the material tray is movably arranged in the bin, and a lifting mechanism is arranged in the bin and connected with the material tray to drive the material tray to lift in the bin.

According to some embodiments of the utility model, the lifting mechanism comprises a movable bottom plate, a supporting structure and a second lifting driving piece, the movable bottom plate is connected with the material tray, and the supporting structure is arranged between the movable bottom plate and the bottom surface of the storage bin and used for supporting the movable bottom plate; the supporting structure has an unfolding state and a folding state, and when the supporting structure is switched from the folding state to the unfolding state, the movable bottom plate rises; the second lifting driving piece is connected with the supporting structure to drive the supporting structure to switch states, and drives the movable bottom plate and the material tray to lift.

According to some embodiments of the utility model, the support structure comprises two support groups, the middle parts of the two support groups are hinged, the two support groups are provided with a first end and a second end which are opposite, the first ends of the two support groups are respectively and fixedly connected with the movable bottom plate and the bottom surface of the storage bin, and the second ends are respectively connected with the ground of the storage bin and the movable bottom plate in a sliding manner; the second lifting driving piece is used for driving the second end to slide so that the supporting group rotates around the hinge shaft to switch states and drive the movable bottom plate to lift.

According to some embodiments of the utility model, the support group comprises a connecting shaft, two support arms and a support arm shaft, the middle parts of the two support arms are connected through the connecting shaft, and the second ends of the support arms are connected through the support arm shaft; the second lifting driving piece comprises a driving motor and a ball screw, one end of the ball screw is connected with the driving motor, the other end of the ball screw is connected with the supporting arm shaft, and the driving motor drives the ball screw to rotate so as to drive the supporting arm shaft to slide.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The utility model is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic view of an installation structure of an embodiment of the present invention;

FIG. 2 is a schematic view of an installation configuration of another embodiment of the present invention;

FIG. 3 is an exploded view of the embodiment of FIG. 2;

figure 4 is an exploded view of the bin and the lifting mechanism.

Reference numerals:

the material tray 100, the limiting device 110, the limiting plate 111, the limiting hole 112, the limiting seat 113, the limiting groove 114, the transfer driving member 120, the first lifting driving member 121, the horizontal driving member 122, the second suction cup 130, the suction plate 131, the guide rod 132 and the spring 133;

a transfer tray 200, a first suction tray 210, a moving driving member 220;

the device comprises a bin 300, a lifting mechanism 310, a movable bottom plate 320, a support group 331, a support arm 332, a support arm shaft 333, a bearing 334, a connecting shaft 335, a driving motor 341, a ball screw 342, a screw 343 and a screw seat 344.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1, a feeding device for packaging bags according to an embodiment of the present invention includes a tray 100, a transfer tray 200, and a transfer mechanism.

The tray 100 is used for containing large-size packaging bags, the packaging bags are stacked on the tray 100, and in order to avoid messing the other packaging bags when the packaging bags are taken, the limiting device 110 is arranged on the tray 100 to limit the packaging bags, and the influence of dislocation and scattering of the packaging bags on taking is avoided.

The transfer mechanism is provided above the tray 100, the transfer tray 200 is provided on the side of the tray 100, and the transfer mechanism can move from above the tray 100 to above the transfer tray 200. The transfer mechanism comprises a transfer driving part 120 and a plurality of second suckers 130, the second suckers 130 are connected with the transfer driving part 120, and the transfer driving part 120 is used for driving the second suckers 130 to move, sucking the packaging bags from the trays 100 and transferring the packaging bags onto the transfer disc 200; specifically, during the loading, the transferring driving member 120 drives the second suction cup 130 to descend into the tray 100, after the packaging bag is sucked, the second suction cup 130 ascends and exits from the tray 100, the transferring driving member 120 drives the second suction cup 130 to move horizontally to the position above the transferring plate 200, the second suction cup 130 is driven to descend to be close to the first suction cup 210, and after the packaging bag is put down, the second suction cup 130 returns to the initial position above the tray 100.

The upper surface of the transfer plate 200 is provided with a plurality of first suction plates 210 for sucking the packing bag, and the packing bag needs to be sucked by a plurality of first suction plates 210 simultaneously due to the large size of the packing bag, so that the packing bag is prevented from falling. The transfer disc 200 is connected with a movable driving piece 220, the movable driving piece 220 comprises a first movable cylinder and a second movable cylinder, the movable end of the first movable cylinder is connected with the transfer disc 200 and used for driving the rotating disc to move left and right, and the movable end of the second movable cylinder is connected with the body of the first movable cylinder and used for driving the first movable cylinder and the rotating disc to move front and back; the horizontal movement of the transfer tray 200 can be controlled by the moving driver 220 to transfer the packaging bag to a position to be processed (packaging).

Specifically, since the packing bag used in the present invention is used for containing a plurality of bundles of noodles for transportation, and thus the packing bag has a large-sized rectangle, the tray 100 and the feeding tray 100 in the present invention are also configured to have matching rectangles, and the first suction cup 210 and the second suction cup 130 are arranged along the outline of the rectangle to suck or place the packing bag, preventing the packing bag from falling off or folding.

Referring to fig. 1 to 2, in some embodiments of the present invention, the limiting device 110 includes a limiting plate 111 and a limiting seat 113, the limiting plate 111 extends in a front-back direction (a length direction of the tray 100) and is fixed to one side of the tray 100, the limiting seat 113 is movably installed on the tray 100 at a side opposite to the limiting plate 111, the packaging bag is placed between the limiting plate 111 and the limiting seat 113, and the limiting seat 113 can move inward from an outer side of the tray 100 and is fixed by a fastener to limit the packaging bag; the position of the limiting seat 113 on the tray 100 can be changed, so that the packaging bag can be suitable for packaging bags with various sizes.

Specifically, referring to fig. 1, the limit plate 111 is arranged on the right side of the tray 100, the limit seat 113 is arranged on the left side of the tray 100, after the packaging bag is placed on the tray 100, one side of the packaging bag is connected with the limit plate 111, and then the limit seat 113 is moved from left to right until the limit seat 113 is connected with the other side of the packaging bag, so that the left and right movement of the packaging bag is limited; preferably, the front side and the rear side of the tray 100 can also be respectively provided with two opposite limiting seats 113, and the front and the rear of the packaging bag can be limited by adjusting the distance between the two limiting seats 113.

Referring to fig. 1 and 3, in a further embodiment of the present invention, the position-limiting seat 113 is provided with a position-limiting groove 114, the position-limiting groove 114 extends along the moving direction (left-right direction) of the position-limiting seat 113, the material tray 100 is correspondingly provided with a position-limiting hole 112, the fastening member may be a screw, the position-limiting hole 112 can be aligned with the position-limiting groove 114, and the screw can pass through the position-limiting groove 114 and extend into the position-limiting hole 112, so as to fix the position-limiting seat 113 on the material tray 100.

Referring to fig. 3, in some embodiments of the present invention, the movable end of the transfer driving member 120 is connected to the suction plate 131, the second suction cup 130 is connected to the suction plate 131 through a guide rod 132, the second suction cup 130 is slidably sleeved on the lower end of the guide rod 132, and the upper end of the guide rod 132 is fixedly connected to the suction plate 131; the guide rod 132 is sleeved with a spring 133, one end of the spring 133 is connected with the suction plate 131, and the other end is connected with the second suction cup 130. When the second suction cup 130 descends into the tray 100 to suck the package, the second suction cup is likely to collide with the tray 100, so that the spring 133 is arranged for buffering in the utility model, and the guide rod 132 is arranged to provide a guiding function for the deformation of the spring 133.

Referring to fig. 3, in a further embodiment of the present invention, the transfer driving unit 120 includes a first lifting driving unit 121 and a horizontal driving unit 122, the first lifting driving unit 121 is connected to the suction plate 131 for driving the second suction cup 130 to be lifted to suck the packing bag; the horizontal driving member 122 is connected to the first lifting driving member 121, and is used for driving the first lifting driving member 121 and the second suction cup 130 to move horizontally to transfer the packaging bag. The first lifting driving member 121 is a first lifting cylinder, the suction plate 131 is fixed at the telescopic end of the first lifting cylinder, the first lifting cylinder drives the second suction cup 130 to lift, and the packaging bag is sucked from the tray 100 or put on the transfer tray 200; the horizontal driving member 122 is a sliding cylinder, the first lifting cylinder body is fixed on the movable portion of the sliding cylinder, and the sliding cylinder drives the first lifting cylinder to move left and right, so that the second suction cup 130 can move back and forth above the tray 100 and the feeding tray 100.

Referring to fig. 2 to 3, in other embodiments of the present invention, the magazine 300 is further included, the top of the magazine 300 is opened, and the volume of the magazine 300 is much larger than that of the tray 100, so that a large number of packages can be stored at one time, and the number of times of adding packages is reduced.

The stroke of first lift cylinder is certain, the feed bin 300 is darker, take a period of time after when the wrapping bag, the wrapping bag that is located the feed bin 300 bottom is far away from second sucking disc 130, second sucking disc 130 is difficult to take out the wrapping bag of bottom steadily, therefore, in this embodiment, charging tray 100 movable mounting is in feed bin 300, be equipped with elevating system 310 in the feed bin 300, elevating system 310 is connected with charging tray 100 and goes up and down in feed bin 300 with drive charging tray 100, along with the reduction of wrapping bag, charging tray 100 rises gradually, make the wrapping bag rise to the position of being convenient for the absorption. The size of the tray 100 is matched with that of the bin 300, so that the tray 100 can ascend and descend along the inner side wall of the bin 300 to be horizontal when ascending and descending.

Referring to fig. 3 to 4, in a further embodiment of the present invention, the lifting mechanism 310 includes a movable bottom plate 320, a supporting structure and a second lifting driving member, the movable bottom plate 320 is fixedly connected to the tray 100, and the supporting structure is disposed between the movable bottom plate 320 and the bottom surface of the bin 300 for supporting the movable bottom plate 320; the support structure has an extended state and a retracted state, and when the support structure is switched from the retracted state to the extended state, the movable bottom plate 320 is lifted; the second lifting driving member is connected to the supporting structure to drive the supporting structure to switch states, so as to drive the movable bottom plate 320 and the tray 100 to lift. Specifically, in the present embodiment, the supporting structure is a hinged link structure, and the state is switched by the rotation of the link, when the supporting structure is switched to the unfolded state, the link rotates to unfold, the height of the supporting structure becomes high, and the movable bottom plate 320 is jacked up; when the support structure is switched to the retracted state, the link is rotated to retract, the height of the support structure becomes short, and the movable floor 320 descends. It is conceivable that the movable bottom plate 320 may be omitted in order to save space, and the support structure is directly disposed between the tray 100 and the bottom surface of the inner wall of the bin 300 to directly support the tray 100.

Referring to fig. 4, in a further embodiment of the present invention, the supporting structure comprises two supporting sets 331, wherein the two supporting sets 331 are hinged at the middle part and are in a crossed state; the two support sets 331 have opposite first ends (front ends in fig. 4) and second ends (rear ends in fig. 4), the first ends of the two support sets 331 are respectively fixedly connected with the movable bottom plate 320 and the bottom surface of the storage bin 300, and the second ends are respectively connected with the ground of the storage bin 300 and the movable bottom plate 320 in a sliding manner; the second lifting driving member is used for driving the second end to slide, so that the supporting set 331 rotates around the hinge shaft to switch states, and the movable bottom plate 320 is driven to lift. When the second driving member drives the second end to slide forward, the supporting structure is switched to the unfolding state, the movable bottom plate 320 ascends, and the tray 100 ascends; when the second driving member drives the second end to slide backwards, the supporting structure is switched to the retracted state, the movable bottom plate 320 descends, and the tray 100 descends.

Referring to fig. 4, in a further embodiment of the present invention, the support set 331 includes a connecting shaft 335, two support arms 332 and a support arm shaft 333, the middle portions of the two support arms 332 are connected by the connecting shaft 335, and the two support sets 331 are also hinged by the connecting shaft 335, i.e. the connecting shaft 335 is fixedly inserted through the middle portions of the four support arms 332. The second ends (rear ends in fig. 4) of the support arms 332 are connected by support arm shafts 333; the second lifting driving piece comprises a driving motor 341 and a ball screw 342, the ball screw 342 comprises a screw 343 and a screw seat 344, one end of the screw 343 is connected with the driving motor 341, the other end of the screw passes through the supporting arm shaft 333 along the radial direction of the supporting arm shaft 333, the screw seat 344 is mounted on the screw 343, the screw seat 344 is in threaded connection with the supporting arm shaft 333, the driving motor 341 is started, the screw 343 rotates, and the screw seat 344 moves back and forth along the screw 343 to drive the supporting arm shaft 333 to move back and forth; the left end and the right end of the supporting arm shaft 333 are rotatably provided with the bearings 334, the bearings 334 are in contact with the bottom surface of the storage bin 300 or the lower surface of the movable bottom plate 320, the supporting arm shaft 333 moves back and forth to drive the bearings 334 to rotate, and friction resistance is reduced.

The using method of the utility model comprises the following steps: the packaging bags are placed on the tray 100 in the bin 300 and limited by the limiting device 110, the first lifting driving piece 121 drives the second sucker 130 to descend into the tray 100, the second sucker 130 ascends to withdraw from the tray 100 after the packaging bags are sucked, the horizontal driving piece 122 drives the second sucker 130 to horizontally move to the position above the transfer tray 200, the first lifting driving piece 121 drives the second sucker 130 to descend to be close to the first sucker 210, and after the packaging bags are put down, the second sucker 130 returns to the initial position above the tray 100. Along with the taking out of the packaging bags, the packaging bags in the storage bin 300 are gradually reduced, the second lifting driving piece drives the supporting arm shaft 333 to move (forwards), the supporting structure is gradually unfolded, and the packaging bags are driven by the tray 100 to ascend so as to be taken by the second sucker 130.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example" or "some examples" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (9)

1. The utility model provides a wrapping bag loading attachment which characterized in that includes:

the material tray (100) is used for containing packaging bags, and a limiting device (110) is arranged on the material tray (100) to limit the packaging bags;

the transfer mechanism is arranged above the material tray (100), and a transfer tray (200) is arranged beside the material tray (100); the transfer mechanism comprises a transfer driving part (120) and a plurality of second suckers (130), the second suckers (130) are connected with the transfer driving part (120), and the transfer driving part (120) is used for driving the second suckers (130) to move, so that the second suckers (130) can suck the packaging bags from the material tray (100) and transfer the packaging bags to the transfer tray (200);

the packaging bag conveying device comprises a conveying disc (200), wherein the upper surface of the conveying disc is provided with a plurality of first suckers (210) used for sucking packaging bags, and the conveying disc (200) is connected with a movable driving piece (220) so as to transfer the packaging bags to a position to be processed.

2. The packaging bag feeding device according to claim 1, wherein: stop device (110) include limiting plate (111) and spacing seat (113), limiting plate (111) are fixed in charging tray (100) one side, spacing seat (113) movable mounting in charging tray (100) go up with one side that limiting plate (111) are relative, the wrapping bag is arranged in limiting plate (111) with between spacing seat (113), spacing seat (113) can be followed charging tray (100) outside is inside to be removed and is fixed through the fastener, in order to right the wrapping bag is spacing.

3. The packaging bag feeding device according to claim 2, wherein: be equipped with spacing groove (114) on spacing seat (113), spacing groove (114) are followed spacing seat (113) moving direction extends, it is equipped with spacing hole (112) to correspond on charging tray (100), spacing hole (112) can with spacing groove (114) align, the fastener can pass spacing groove (114) and stretch into spacing hole (112), with will spacing seat (113) are fixed on charging tray (100).

4. The packaging bag feeding device according to claim 1, wherein: the movable end of the transfer driving piece (120) is connected with an absorbing plate (131), the second sucker (130) is connected to the absorbing plate (131) through a guide rod (132), a spring (133) is sleeved on the guide rod (132), one end of the spring (133) is connected with the absorbing plate (131), and the other end of the spring is connected with the second sucker (130).

5. The packaging bag feeding device according to claim 4, wherein: the transfer driving part (120) comprises a first lifting driving part (121) and a horizontal driving part (122), and the first lifting driving part (121) is connected with the suction plate (131) and used for driving the second sucker (130) to lift so as to suck the packaging bag; the horizontal driving piece (122) is connected with the first lifting driving piece (121) and used for driving the first lifting driving piece (121) and the second sucker (130) to horizontally move so as to transfer the packaging bag.

6. The packaging bag feeding device according to claim 1, characterized in that: still include feed bin (300), feed bin (300) open-top, charging tray (100) movable mounting in feed bin (300), be equipped with elevating system (310) in feed bin (300), elevating system (310) with charging tray (100) are connected in order to drive charging tray (100) are in go up and down in feed bin (300).

7. The packaging bag feeding device according to claim 6, wherein: the lifting mechanism (310) comprises a movable bottom plate (320), a supporting structure and a second lifting driving piece, the movable bottom plate (320) is connected with the material tray (100), and the supporting structure is arranged between the movable bottom plate (320) and the bottom surface of the storage bin (300) and used for supporting the movable bottom plate (320); the support structure having a deployed state and a retracted state, the movable floor (320) being raised when the support structure is switched from the retracted state to the deployed state; the second lifting driving piece is connected with the supporting structure to drive the supporting structure to switch states, and drives the movable bottom plate (320) and the material tray (100) to lift.

8. The packaging bag feeding device according to claim 7, wherein: the supporting structure comprises two supporting groups (331), the middle parts of the two supporting groups (331) are hinged, the two supporting groups (331) are provided with a first end and a second end which are opposite, the first ends of the two supporting groups (331) are respectively and fixedly connected with the movable bottom plate (320) and the bottom surface of the storage bin (300), and the second ends are respectively connected with the ground of the storage bin (300) and the movable bottom plate (320) in a sliding manner; the second lifting driving piece is used for driving the second end to slide, so that the supporting group (331) rotates around a hinge shaft to switch states, and the movable bottom plate (320) is driven to lift.

9. The packaging bag feeding device according to claim 8, wherein: the support group (331) comprises a connecting shaft (335), two support arms (332) and a support arm shaft (333), the middle parts of the two support arms (332) are connected through the connecting shaft (335), and the second ends of the support arms (332) are connected through the support arm shaft (333); the second lifting driving piece comprises a driving motor (341) and a ball screw (342), one end of the ball screw (342) is connected with the driving motor (341), the other end of the ball screw is connected with the arm supporting shaft (333), and the driving motor (341) drives the ball screw (342) to rotate so as to drive the arm supporting shaft (333) to slide.

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