Bag feeding operation device for skirt packaging

By designing a bag-feeding operation device for skirt packaging, and utilizing a bag-expanding and cutting-sealing mechanism to automatically unfold, cut, and seal the film bag, the problem of automating film bag operation in skirt packaging equipment is solved, and the efficiency of skirt packaging is improved.

CN223878332UActive Publication Date: 2026-02-06SHAOXING XINSONG INTELLIGENT EQUIPMENT TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202520506652.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-21
Publication Date
2026-02-06
Estimated Expiration
2035-03-21

AI Technical Summary

Technical Problem

In existing technologies, skirt packaging equipment has a low degree of automation in the unfolding, cutting and sealing of film bags, resulting in a large amount of manual labor and difficulty in efficiently completing the bag feeding operation.

Method used

Design a bag-feeding operation device for skirt packaging, including a bag-expanding mechanism and a cutting and sealing mechanism. The bag-expanding mechanism realizes the automatic unfolding of the film bag, and the cutting and sealing mechanism realizes the automatic cutting and sealing of the film bag. The bag-feeding roller, bag-expanding frame, guiding element and hook and other components realize the automatic expansion and packing of the film bag. Combined with the bag cutting element and heat sealing element, the automatic sealing of the film bag is completed.

Benefits of technology

It enables automated unfolding, cutting, and sealing of film bags, improving the automation level of skirt packaging, reducing manual operation, and is suitable for automated packaging equipment for skirts.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223878332U_ABST
Patent Text Reader

Abstract

The utility model discloses a bag feeding operation device for skirt packaging, which comprises a main frame and a bag guiding roller, a bag expanding mechanism and a cut-off sealing mechanism are mounted on the inner side of the main frame, the bag expanding mechanism is arranged right above the cut-off sealing mechanism and comprises a bag expanding frame, the bag guiding roller is fixedly mounted at the top of the bag expanding frame, and the cut-off sealing mechanism is arranged right above the cut-off sealing mechanism. Two left-right guiding elements which are symmetrically arranged and two front-back guiding elements which are symmetrically arranged are installed in the bag expanding frame, the two left-right guiding elements and the two front-back guiding elements are arranged in a cross-shaped four-point mode, and a vertically-drooping hook is installed in the center of the bag expanding frame. According to the utility model, the belt-shaped film bag is led in by the bag leading roller, so that the belt-shaped film bag passes through the bag expanding mechanism and the cutting and sealing mechanism in sequence from top to bottom, and the automatic expanding problem of the film bag can be solved through the bag expanding mechanism; and the cutting and sealing mechanism is used for solving the problems of automatic cutting and separation of the film bags and automatic sealing after the film bags are separated.
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Description

TECHNICAL FIELD

[0001] The utility model relates to clothes packaging equipment technical field more specifically, a skirt packing is with bagging operation device. BACKGROUND

[0002] The skirt is a kind of clothes category used by women, and the skirt needs to be packed into a thin film bag before leaving factory, so that the skirt can be effectively protected from dirt pollution. The packaging operation of the skirt is a kind of operation with high repetitive labor rate and large amount of manual use. The packaging operation of the skirt can be improved by using automatic packaging equipment to reduce the use of manual labor. The automatic packaging equipment for the skirt may encounter the problem of bagging operation of the film bag. The film bag used by the automatic packaging equipment is a continuous film bag in the form of a roll. The film bag is initially in a flat and folded state. To fit the film bag on the skirt, the film bag needs to be unfolded first to form a cylindrical shape. Then, the film bag can be fitted on the outside of the skirt. After the film bag is fitted in place, the film bag needs to be cut and sealed (the continuous film bag is cut into a single packaging bag to match the fitted skirt, and the cutting position needs to be sealed to form a packaging bag with only one side open). The above two operations are urgent automatic design problems to be solved. SUMMARY

[0003] The utility model aims at solving the above-mentioned problems in the prior art and provides a bagging operation device for skirt packaging. The utility model introduces the film bag from the bagging roller, and the film bag passes through the bag expanding mechanism and the cutting and sealing mechanism from top to bottom. The bag expanding mechanism can solve the problem of automatic expansion of the film bag. The cutting and sealing mechanism can solve the problems of automatic cutting and separation of the film bag and automatic sealing of the separated film bag.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0005] A bagging operation device for skirt packaging includes a main frame and a bagging roller. The bag expanding mechanism and the cutting and sealing mechanism are installed on the inner side of the main frame. The bag expanding mechanism is arranged directly above the cutting and sealing mechanism. The bag expanding mechanism includes a bag expanding frame. The bagging roller is fixedly installed on the top of the bag expanding frame. The bagging roller guides the vertical downward movement of the film bag. Two symmetrically arranged left-right guide elements and two symmetrically arranged front-back guide elements are installed in the bag expanding frame. The two left-right guide elements and the two front-back guide elements are arranged in a cross four-point manner. The downward moving film bag passes through the two left-right guide elements and the two front-back guide elements to form the expansion effect of the bag edge. A hook vertically hanging from the intersection point of the axes of the two left-right guide elements and the two front-back guide elements is installed. The cutting and sealing mechanism includes a bag body cutting element and a bag body heat sealing element. The bag body cutting element is arranged above the bag body heat sealing element.

[0006] Further, the bag expanding mechanism further comprises a stand fixedly connected below the bag leading roller, the left-right direction guiding elements comprise a first guiding wheel and a second guiding wheel, the first guiding wheel is rotatably installed on the stand, the second guiding wheel is rotatably installed on the inner side of the bag expanding frame, the first guiding wheel and the second guiding wheel are installed in correspondence with the same height, the bag wall of the film bag passes between the wheel surfaces of the first guiding wheel and the second guiding wheel, the front-back direction guiding elements comprise a side blocking roller and a third guiding wheel, the side blocking roller is installed on the inner side of the bag expanding frame, the third guiding wheel is rotatably installed on the stand, the side blocking roller and the third guiding wheel are installed in correspondence with the same height, the bag wall of the film bag passes between the roller surface of the side blocking roller and the wheel surface of the third guiding wheel.

[0007] Further, the hook is vertically connected directly below the stand, the anti-shrinking frame is fixedly installed on the hanging rod of the hook, the anti-shrinking frame is in the shape of a bridge arch in cross section, and the anti-shrinking frame is arranged below the two left-right direction guiding elements and the two front-back direction guiding elements.

[0008] Further, the cutting and sealing mechanism further comprises a blade holder and a pressing frame, the blade holder is fixedly installed in the main frame, the pressing frame is movably installed in the main frame, the bag body cutting element and the bag body heat sealing element are installed on the blade holder and the pressing frame, the film bag passes between the blade holder and the pressing frame, the pressing frame is connected with a pressing push cylinder, and the pressing push cylinder can drive the pressing frame to move towards the blade holder.

[0009] Further, the bag body cutting element comprises a blade and a cutting seat, two blades are symmetrically installed on the blade holder, each blade is connected with a blade push cylinder, the blade is connected with the piston rod end of the blade push cylinder, and two cutting seats are symmetrically installed on the pressing frame, the cutting seat is provided with a blade movement groove, and the cutting seat is in one-to-one correspondence with the blade.

[0010] Further, one bag body heat sealing element is installed on the blade holder, and the other bag body heat sealing element is installed on the pressing frame, the two bag body heat sealing elements are arranged in correspondence with the same height, and the bag body heat sealing element comprises two heat sealing strips arranged in the shape of an eight.

[0011] Furthermore, sliders are symmetrically installed on both sides of the outer wall of the extrusion frame, and two symmetrically arranged first slide rails are installed on the inner side of the main frame. The sliders are installed in a one-to-one correspondence with the first slide rails. The extrusion push cylinder is fixedly installed on the inner side of the main frame, and the piston rod end of the extrusion push cylinder is connected to the extrusion frame. Two symmetrically arranged track seats are installed on the inner side of the main frame. Second slide rails are symmetrically installed on both sides of the outer wall of the bag expansion frame, and the second slide rails are connected in a one-to-one correspondence with the track seats. A clearance push cylinder is fixedly installed on the inner side of the main frame, and the piston rod end of the clearance push cylinder is connected to the bag expansion frame. The clearance push cylinder and the extrusion push cylinder are installed in the same direction, and the clearance push cylinder and the extrusion push cylinder extend and retract synchronously.

[0012] Furthermore, a bag clamping mechanism is installed on the side of the bag guide roller. The bag clamping mechanism includes a bag clamping push cylinder and a bag clamping plate. The bag clamping push cylinder is fixedly installed on the bag expansion frame, and the bag clamping plate is connected to the piston rod end of the bag clamping push cylinder. The bag clamping plate can be pushed to move towards the roller surface of the bag guide roller.

[0013] The beneficial effects of this utility model are:

[0014] This utility model features a reasonable design and layout. The strip-shaped film bag is introduced by a bag-feeding roller, passing sequentially from top to bottom through an expanding mechanism and a cutting and sealing mechanism. The expanding mechanism creates an expansion effect in four directions on the film bag in its closed state, resulting in an open opening that allows it to be fitted onto the outside of a skirt. The cutting and sealing mechanism is activated after the film bag is fitted into place, cutting the continuous strip-shaped film bag and creating a heat-sealing effect at the cut point. This utility model has the advantage of a high degree of automation, as all the above operations can be completed automatically by the equipment. This utility model is applicable to automated packaging equipment for skirts. Attached Figure Description

[0015] Figure 1 This is a three-dimensional overall structural diagram of a bag-feeding operation device for skirt packaging in this embodiment;

[0016] Figure 2 This is a three-dimensional structural diagram of the bag expansion mechanism in this embodiment;

[0017] Figure 3 This is a three-dimensional structural diagram of the cutting and sealing mechanism in this embodiment;

[0018] Figure 4 This is a three-dimensional structural diagram of the cutting and sealing mechanism in this embodiment.

[0019] Reference signs: main frame 1, track base 11, first slide rail 12, bag expanding mechanism 2, bag expanding frame 21, second slide rail 211, left-right direction guide element 22, first guide wheel 221, second guide wheel 222, front-rear direction guide element 23, side blocking roller 231, third guide wheel 232, hook 24, stand 25, anti-shrinking frame 26, position avoiding push cylinder 27, cutting and sealing mechanism 3, blade holder 31, extruding holder 32, slide block 321, bag body cutting element 33, blade 331, cutting seat 332, blade movement groove 333, blade push cylinder 334, bag body heat sealing element 34, heat sealing strip 341, extruding push cylinder 35, bag guiding roller 4, bag clamping mechanism 5, bag clamping push cylinder 51, bag clamping piece 52. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0021] As Figures 1-4The utility model provides a kind of skirt packaging bagging operation device, including main frame 1 and bag guide roller 4, bag expanding mechanism 2 and cutting and sealing mechanism 3 are installed in the inside of main frame 1, bag expanding mechanism 2 is used for the automatic expansion operation of film bag (the input strip film bag is planar fold state, needs to be expanded into cylinder to be sleeved on the outside of skirt), cutting and sealing mechanism 3 is used for the automatic cutting and sealing operation of film bag (the input strip film bag is continuous integral, after being sleeved in place, single film bag needs to be cut off from continuous film bag band, then single film bag cut off also needs to be sealed at one end, so as to form bag shape, so as to be successfully packaged on the outside of skirt, and this sealing point is set near the cutting mouth of single film bag after cutting is optimal), in view of the convenience of packaging operation and the characteristics of some special skirts (dress, formal skirt skirt length is very long, compared to horizontal packaging, hanging type packaging is more suitable), the utility model designs vertically hanging hook 24 to hang skirt, bag expanding mechanism 2 of the utility model includes bag expanding frame 21, bag guide roller 4 is fixedly installed at the top of bag expanding frame 21, bag guide roller 4 guides strip film bag to descend vertically, so as to be just from top to bottom to be sleeved on the outside of skirt, bag expanding frame 21 is installed with two symmetrically arranged left and right direction guide elements 22 and two symmetrically arranged front and rear direction guide elements 23, two left and right direction guide elements 22 and two front and rear direction guide elements 23 are arranged in cross four points, and the descending film bag passes through two left and right direction guide elements 22 and two front and rear direction guide elements 23 simultaneously to form the expansion effect of bag edge, and the film bag is expanded to form an open mouth, and the film bag can descend in open form, the vertically hanging hook 24 is installed at the axis intersection point of two left and right direction guide elements 22 and two front and rear direction guide elements 23 in the utility model, and the skirt just hung is just located in the middle of the open film bag, after strip film bag descends, the film bag is just sleeved on the outside of skirt (the film bag vertically descends by pulling force, descends to the lowest point of skirt to be completely and integrally sleeved), after the completion of skirt sleeving, a single film bag needs to be cut off to match skirt, therefore, the utility model sets bag expanding mechanism 2 above cutting and sealing mechanism 3, cutting and sealing operation does not affect the bag mouth expanded above, does not affect subsequent bagging operation, cutting and sealing mechanism 3 includes bag body cutting element 33 and bag body heat sealing element 34, bag body cutting element 33 completes bag body cutting and separating operation, and bag body heat sealing element 34 completes closing operation near cutting place, and the film bag after cutting, both ends are open, if not one end is sealed, the film bag will fall off from skirt, in view of the hanging installation of skirt, therefore, sealing is the most suitable position below cutting point, therefore, the utility model sets bag body cutting element 33 above bag body heat sealing element 34, and hot extrusion sealing position is just below cutting mouth.

[0022] As Figure 2As shown, the bag expanding mechanism 2 further comprises a stand 25 fixedly connected below the bag leading roller 4, the stand 25 is used to install the left-right guide element 22, the front-back guide element 23 and the hook 24, the left-right guide element 22 comprises a first guide wheel 221 and a second guide wheel 222, the first guide wheel 221 is rotatably installed on the stand 25, the second guide wheel 222 is rotatably installed on the inner side of the bag expanding frame 21, the first guide wheel 221 and the second guide wheel 222 are installed in correspondence with the same height, the bag wall of the film bag passes between the wheel surfaces of the first guide wheel 221 and the second guide wheel 222, the front-back guide element 23 comprises a side blocking roller 231 and a third guide wheel 232, the side blocking roller 231 is installed on the inner side of the bag expanding frame 21, the third guide wheel 232 is rotatably installed on the stand 25, the side blocking roller 231 and the third guide wheel 232 are installed in correspondence with the same height, the bag wall of the film bag passes between the roller surface of the side blocking roller 231 and the wheel surface of the third guide wheel 232, since the two left-right guide elements 22 and the two front-back guide elements 23 are arranged in a cross four-point manner, after the film bag passes through the two left-right guide elements 22 and the two front-back guide elements 23 in a downward direction, an open rectangular hole similar to a rectangle hole is formed (the film bag itself is a bag sleeve with a middle through hole, so it can be expanded and opened), the size of the open rectangular hole is greater than the maximum thickness and the maximum width of the skirt, so as to be able to be smoothly sleeved on the outside of the skirt, each guide wheel in the left-right guide element 22 and the front-back guide element 23 needs to rotate flexibly so as not to affect the downward travel of the film bag, the hook 24 is vertically connected below the stand 25, the body of the hook 24 extends downward through the cutting and sealing mechanism 3, during the cutting and sealing process, the film bag is squeezed, in order to prevent the expanded film bag from being squeezed again (squeezing will affect the bag sleeving operation of the next skirt), the utility model is fixedly installed with an anti-shrinking frame 26 on the hanging rod of the hook 24, the anti-shrinking frame 26 is in a bridge arch shape in cross section, the anti-shrinking frame 26 matches the maximum expansion size of the film bag, the anti-shrinking frame 26 is arranged below the two left-right guide elements 22 and the two front-back guide elements 23, and the anti-shrinking frame 26 is further arranged above the bag cutting element 33, so that the squeezing and cutting operation does not affect the already expanded film bag, and the already expanded film bag can maintain the expanded state.

[0023] As Figure 3 and Figure 4As shown, the cutting and sealing mechanism 3 further comprises a blade holder 31 fixedly installed in the main frame 1 and a pressing holder 32 movably installed in the main frame 1, the bag cutting element 33 and the bag sealing element 34 are installed on the blade holder 31 and the pressing holder 32, the film bag passes between the blade holder 31 and the pressing holder 32, and the pressing holder 32 is connected with a pressing push cylinder 35; in the bag wrapping operation, the blade holder 31 and the pressing holder 32 are separated, the bag cutting element 33 and the bag sealing element 34 are not effective, and the film bag normally travels downward to complete the bag wrapping operation on the outside of the skirt; after the bag is wrapped in place, the pressing push cylinder 35 drives the pressing holder 32 to move towards the blade holder 31 until the blade holder 31 and the pressing holder 32 contact each other, and the blade holder 31 and the pressing holder 32 after contacting each other complete the cutting and sealing operation on the film bag by means of the bag cutting element 33 and the bag sealing element 34.

[0024] As shown in Figure 3 and Figure 4 , the bag cutting element 33 comprises a blade 331 and a cutting seat 332, two blades 331 are symmetrically installed on the blade holder 31, and each blade 331 is connected with a blade push cylinder 334, the blade 331 is connected with the piston rod end of the blade push cylinder 334, two cutting seats 332 are symmetrically installed on the pressing holder 32, the cutting seat 332 is provided with a blade movement groove 333, the cutting seat 332 is provided in one-to-one correspondence with the blade 331, the blade push cylinder 334 can drive the blade 331 to move towards the cutting seat 332, after the blade holder 31 and the pressing holder 32 contact each other, the blade 331 initially enters the blade movement groove 333, and with the pushing out of the piston rod of the blade push cylinder 334, the blade 331 moves towards the deep part of the blade movement groove 333, so that the film bag between the blade 331 and the cutting seat 332 is cut off; the utility model installs two bag sealing elements 34, one bag sealing element 34 is installed on the blade holder 31, and the other bag sealing element 34 is installed on the pressing holder 32, the two bag sealing elements 34 are provided in height correspondence, the bag sealing element 34 comprises two heat sealing strips 341 arranged in an eight-shaped layout, after the blade holder 31 and the pressing holder 32 contact each other, the two bag sealing elements 34 can be correspondingly attached, the heat sealing strip 341 has heat after being opened, and the film bag between the two bag sealing elements 34 forms a heat fusion sealing effect, the heat sealing strip 341 arranged in an eight-shaped layout can make an eight-shaped seal, and such a seal can match the shoulder shape of a dress and a formal skirt, so as to facilitate the film bag to be wrapped on this kind of skirt; in the utility model, there is a gap space between the blade 331 and the blade 331, between the cutting seat 332 and the cutting seat 332, and between the heat sealing strip 341 and the heat sealing strip 341, which is to avoid the hanging rod of the hook 24, as shown in Figure 3As shown, the utility model discloses preferably design the blade 331 into needle tooth shape, and the blade 331 of needle tooth shape can form a row of dense pinholes after contacting the film bag, and the pinhole is favorable to the pulling separation of the upper and lower two sections of the film bag, the film bag to be separated has a downward pulling force, and the downward pulling force is utilized to cut off the film bag, compared with the cutting-off mode of direct cutting, the operation of punching pinholes is more reliable (the operation of direct cutting cutting-off can occasionally appear unexpected situation that cannot cut off).

[0025] As Figure 3 and Figure 4 shown, the outer wall of the extrusion frame 32 is symmetrically provided with sliding blocks 321 on both sides, the inner side of the main frame 1 is provided with two symmetrically arranged first sliding rails 12, the sliding blocks 321 are one-to-one correspondingly arranged on the first sliding rails 12, and the sliding blocks 321 and the first sliding rails 12 are matched to guide the movement of the extrusion frame 32. The extrusion push cylinder 35 is fixedly arranged on the inner side of the main frame 1, the piston rod end of the extrusion push cylinder 35 is connected with the extrusion frame 32, and the extrusion of the piston rod of the extrusion push cylinder 35 can drive the movement of the extrusion frame 32. The inner side of the main frame 1 is provided with two symmetrically arranged track seats 11, the outer wall of the bag expanding frame 21 is symmetrically provided with second sliding rails 211 on both sides, the second sliding rails 211 are one-to-one correspondingly connected with the track seats 11, and the second sliding rails 211 and the track seats 11 are matched to guide the movement of the bag expanding frame 21. The inner side of the main frame 1 is fixedly provided with a position-avoiding push cylinder 27, the piston rod end of the position-avoiding push cylinder 27 is connected with the bag expanding frame 21, and the extension and retraction of the piston rod of the position-avoiding push cylinder 27 can drive the movement of the bag expanding frame 21. Since the bag expanding mechanism 2 is provided with the hanging hook 24, the problem of collision between the hanging hook 24 and the extrusion frame 32 can occur during the movement of the extrusion frame 32. Therefore, the position-avoiding push cylinder 27 and the extrusion push cylinder 35 are arranged in the same direction, the position-avoiding push cylinder 27 and the extrusion push cylinder 35 are synchronously extended and retracted, the hanging hook 24 and the extrusion frame 32 move in the same direction, and the problem of collision between the hanging hook 24 and the extrusion frame 32 is solved.

[0026] When the film bag cutting operation is performed, the film bag has a pulling force below, and must be positioned and fixed above, otherwise the film bag will be abnormally pulled down. Figure 2 As shown, the utility model discloses in the bag leading roller 4 side installation has the bag clamping mechanism 5, through the bag clamping mechanism 5 to the film bag upper end fixed, this lower end pulling can form cutting effect, the bag clamping mechanism 5 includes bag clamping push cylinder 51 and bag clamping piece 52, bag clamping push cylinder 51 fixedly installed in bag expanding frame 21, bag clamping piece 52 is connected in bag clamping push cylinder 51's piston rod end, bag clamping piece 52 can push towards bag leading roller 4 roll surface direction movement, bag clamping push cylinder 51 piston rod contraction, bag clamping piece 52 and bag leading roller 4 roll surface exist gap, this gap can guarantee the film bag's travel, when needing bag clamping fixed, bag clamping push cylinder 51 piston rod extension, bag clamping piece 52 towards bag leading roller 4 roll surface direction movement, until the film bag body is pressed and clamped on bag leading roller 4 roll surface, this time can realize the single point fixed effect of strip film bag, this operation can satisfy the film bag cutting operation demand.

[0027] The utility model has the advantages of high degree of automation, and can be installed and applied as a film bag feeding operation part of a skirt packaging machine (after feeding, bagging operation still needs to be completed).

[0028] The above is only the preferred embodiment of the utility model, and the protection scope of the utility model is not limited to the above-mentioned embodiments, and any technical solution belonging to the utility model idea belongs to the protection scope of the utility model. It should be pointed out that, for ordinary technical personnel in the technical field, some improvements and decorations without departing from the principle of the utility model can also be considered as the protection scope of the utility model.

Claims

1. A bag-in process device for skirt packaging, characterized in that, The utility model provides a bag expanding and cutting device, which comprises a main frame (1) and a bag guiding roller (4), the inside of the main frame (1) is provided with a bag expanding mechanism (2) and a cutting and sealing mechanism (3), the bag expanding mechanism (2) is arranged directly above the cutting and sealing mechanism (3), the bag expanding mechanism (2) comprises a bag expanding frame (21), the bag guiding roller (4) is fixedly installed on the top of the bag expanding frame (21), the bag guiding roller (4) guides the vertical downward movement of a strip-shaped film bag, two left-right guiding elements (22) and two front-back guiding elements (23) are symmetrically arranged in the bag expanding frame (21), the two left-right guiding elements (22) and the two front-back guiding elements (23) are arranged in a cross four-point mode, the film bag moving downward passes through the two left-right guiding elements (22) and the two front-back guiding elements (23) to form the expanding effect of the bag edge, a hook (24) vertically downwardly arranged is arranged at the intersection point of the axes of the two left-right guiding elements (22) and the two front-back guiding elements (23), and the cutting and sealing mechanism (3) comprises a bag body cutting element (33) and a bag body heat sealing element (34), the bag body cutting element (33) is arranged above the bag body heat sealing element (34).

2. The bagging operation apparatus for skirt packaging according to claim 1, wherein The bag expanding mechanism (2) further comprises a stand (25) fixedly connected below the bag guiding roller (4), the left-right guiding element (22) comprises a first guiding wheel (221) and a second guiding wheel (222), the first guiding wheel (221) is rotatably installed on the stand (25), the second guiding wheel (222) is rotatably installed on the inside of the bag expanding frame (21), the first guiding wheel (221) and the second guiding wheel (222) are installed in correspondence with each other at the same height, the bag wall of the film bag passes between the wheel surfaces of the first guiding wheel (221) and the second guiding wheel (222), the front-back guiding element (23) comprises a side blocking roller (231) and a third guiding wheel (232), the side blocking roller (231) is installed on the inside of the bag expanding frame (21), and the third guiding wheel (232) is rotatably installed on the stand (25); the side blocking roller (231) and the third guiding wheel (232) are installed in correspondence with each other at the same height, and the bag wall of the film bag passes between the roller surface of the side blocking roller (231) and the wheel surface of the third guiding wheel (232).

3. The into-bag operation device for skirt packaging according to claim 2, characterized by, The hook (24) is vertically connected directly below the stand (25), a shrinkage preventing frame (26) is fixedly installed on the hanging rod of the hook (24), the shrinkage preventing frame (26) is in the shape of a bridge arch in cross section, and the shrinkage preventing frame (26) is arranged below the two left-right guiding elements (22) and the two front-back guiding elements (23).

4. The bagging operation apparatus for skirt packaging according to claim 1, wherein The cutting sealing mechanism (3) further comprises a blade holder (31) and a pressing holder (32), the blade holder (31) is fixedly installed in the main frame (1), the pressing holder (32) is movably installed in the main frame (1), the bag cutting element (33) and the bag heat sealing element (34) are installed on the blade holder (31) and the pressing holder (32), the film bag passes between the blade holder (31) and the pressing holder (32), the pressing holder (32) is connected with a pressing push cylinder (35), the pressing push cylinder (35) can drive the pressing holder (32) to move towards the blade holder (31).

5. The bagging operation apparatus for skirt packaging according to claim 4, wherein The bag cutting element (33) comprises a blade (331) and a cutting seat (332), two blade (331) are symmetrically installed on the blade holder (31), each blade (331) is connected with a blade push cylinder (334), the blade (331) is connected with the piston rod end of the blade push cylinder (334), two cutting seats (332) are symmetrically installed on the pressing holder (32), the cutting seat (332) is provided with a blade movement groove (333), and the cutting seat (332) is correspondingly arranged with the blade (331).

6. The bagging operation apparatus for skirt packaging according to claim 4, wherein One bag heat sealing element (34) is installed on the blade holder (31), and the other bag heat sealing element (34) is installed on the pressing holder (32), the two bag heat sealing elements (34) are correspondingly arranged in height, and the bag heat sealing element (34) comprises two heat sealing strips (341) arranged in an eight-shaped layout.

7. The into-bag operation device for skirt packaging according to claim 4, characterized by The outer wall of the pressing holder (32) is symmetrically provided with a sliding block (321) on both sides, the inner side of the main frame (1) is provided with two symmetrically arranged first sliding rails (12), the sliding block (321) is correspondingly arranged with the first sliding rail (12), the pressing push cylinder (35) is fixedly installed on the inner side of the main frame (1), the piston rod end of the pressing push cylinder (35) is connected with the pressing holder (32), the inner side of the main frame (1) is provided with two symmetrically arranged track seats (11), the outer wall of the bag expanding frame (21) is symmetrically provided with a second sliding rail (211) on both sides, the second sliding rail (211) is correspondingly connected with the track seat (11), the inner side of the main frame (1) is fixedly provided with a position avoiding push cylinder (27), the piston rod end of the position avoiding push cylinder (27) is connected with the bag expanding frame (21), the position avoiding push cylinder (27) and the pressing push cylinder (35) are installed in the same direction, and the position avoiding push cylinder (27) and the pressing push cylinder (35) are synchronously telescopic.

8. The into-bag operation device for skirt packaging according to claim 1, characterized by, The bag expanding frame (21) is provided with a bag clamping mechanism (5) on the side, the bag clamping mechanism (5) comprises a bag clamping push cylinder (51) and a bag clamping piece (52), the bag clamping push cylinder (51) is fixedly installed on the bag expanding frame (21), the bag clamping piece (52) is connected with the piston rod end of the bag clamping push cylinder (51), and the bag clamping piece (52) can be pushed to move towards the roller surface of the bag guiding roller (4).