Automatic packaging device for bagging finished clothes

Abstract

The automatic packaging device comprises a machine head part and a machine body part, the machine head part comprises a coaming assembly, a tensioning assembly is arranged above the coaming assembly, a pressing plate assembly is movably erected on the front side of the coaming assembly, a film sleeving roller shaft is arranged on the rear side of the coaming assembly, and driving air cylinders are arranged on the left side and the right side of the coaming assembly. The output end of the driving air cylinder is connected with the pressing plate assembly, after a film sleeving bag on the film sleeving roller shaft enters the position between the surrounding plate assembly and the pressing plate assembly through the tensioning assembly to cover clothes on the machine body component, the driving air cylinder drives the pressing plate assembly to press towards one side of the surrounding plate assembly, and segmentation and heat sealing of the upper end edge of the film sleeving bag are achieved. The machine body component comprises a surrounding frame assembly, a lifting assembly is arranged in the surrounding frame assembly, a lower movable fixing seat is movably arranged on the lifting assembly, a heat sealing assembly is arranged on one side of the lower movable fixing seat, and a driving assembly is arranged in the lower movable fixing seat and movably matched with a lower pressing assembly arranged on one side of the heat sealing assembly. The edge of the lower end of the film sleeving bag is heat-sealed.

Description

Technical Field

[0001] The utility model belongs to the technical field of clothing packaging machines, and particularly relates to an automatic packaging device for finished clothing bagging. Background Art

[0002] A clothing sealing machine is an automated device that covers the manufactured or washed clothes with a film to prevent the clothes from being contaminated again by dust, oil stains, etc.

[0003] The existing clothing sealing machines have a large demand for manual labor, are not convenient to use, cannot complete the packaging of various forms and styles of clothes, and have great limitations in mechanism film sealing. Content of the Utility Model

[0004] In order to make up for the deficiencies of the prior art, the purpose of the utility model is to provide an automatic packaging device for finished clothing bagging.

[0005] The described automatic packaging device for finished clothing bagging includes a machine head component and a machine body component. The machine head component includes a surrounding plate assembly. A tensioning component is arranged above the surrounding plate assembly. A pressing plate assembly is movably erected in the front side of the surrounding plate assembly, an upper electrical box and a film sleeving roller shaft are arranged at the rear side, and driving cylinders are arranged on both the left side and the right side. The output end of the driving cylinder is connected with the pressing plate assembly. After the film sleeving bag on the film sleeving roller shaft enters between the surrounding plate assembly and the pressing plate assembly through the tensioning component and covers the clothes on the machine body component, the driving cylinder drives the pressing plate assembly to press towards the surrounding plate assembly side, so that the cutter teeth of the pressing plate assembly complete the splitting of the film sleeving bag. At the same time, the upper heat sealing strip on the surrounding plate assembly performs heat sealing on the upper edge of the film sleeving bag.

[0006] The machine body component includes a surrounding frame assembly. A lifting component is arranged inside the surrounding frame assembly. A lower movable fixing seat is movably arranged on the lifting component. A heat sealing component is arranged on one side of the lower movable fixing seat, and a driving component is arranged inside the lower movable fixing seat and is movably matched with a lower pressing component arranged on one side of the heat sealing component. The driving component drives the lower pressing component to abut against the heat sealing component to realize heat sealing on the lower edge of the film sleeving bag.

[0007] Further, the surrounding plate assembly includes a fixing plate and side plates arranged on both sides of the fixing plate. Two bakelite boards are arranged on the side of the fixing plate close to the pressing plate assembly. The two bakelite boards are symmetrically arranged at intervals, and upper heat sealing strips are arranged on the bakelite boards. The side plates extend upwards, and a roller is arranged at the top of the side plates. The roller is placed above the tensioning component.

[0008] Further, the pressing plate assembly includes brackets obliquely hung on the upper part of the side plates. A pressing bottom plate is arranged between the brackets on both sides. On the side of the pressing bottom plate close to the plywood board, two pressing plates are elastically arranged. The two pressing plates are symmetrically arranged at intervals, and the pressing plates and the plywood board are arranged in one-to-one correspondence; an upper pressing plate is arranged above the pressing plates. The upper pressing plate is elastically connected to the pressing bottom plate, and cutter teeth are arranged on the bottom end face of the upper pressing plate; the output end of the driving cylinder is fixedly matched with the bracket, driving the pressing plates and the cutter teeth to move towards the plywood board, and the cutter teeth are used to complete the cutting of the sleeve film bag, and the upper heat-sealing strip on the plywood board presses the upper edge of the sleeve film bag.

[0009] Further, the tensioning assembly includes a stop block shaft I and a stop block shaft II. The stop block shaft I and the stop block shaft II are arranged side by side between the side plates on both sides, and hooks are arranged between the stop block shaft I and the stop block shaft II through a T-shaped frame; two limit stop blocks I are arranged at intervals in the middle of the stop block shaft I, and a tensioning wheel I is arranged on the limit stop block I; two limit stop blocks II are arranged at intervals in the middle of the stop block shaft II, and a tensioning wheel II is arranged on the limit stop block II. The limit stop blocks I and the limit stop blocks II are arranged in one-to-one correspondence, and a lower tensioning wheel is arranged at the bottom between the corresponding tensioning wheel I and the tensioning wheel II. The two sides of the sleeve film bag on the roller respectively enter between the limit stop block I and the limit stop block II through the tensioning wheel I and the tensioning wheel II, and then enter between the plywood board and the pressing plate assembly through both sides of the lower tensioning wheel to cover the clothes on the hook.

[0010] Further, the surrounding frame assembly includes a fixed frame. A lower electric box is arranged at the top of the fixed frame, a base is arranged at the bottom, a lifting assembly and a lower movable fixing seat are arranged inside the frame, and the lower movable fixing seat moves up and down in the fixed frame along the lifting assembly.

[0011] Further, the lifting assembly includes a lifting lead screw. The top of the lifting lead screw is rotatably connected to the top plate of the fixed frame, and the bottom is rotatably connected to the bottom plate of the fixed frame; a speed reducer is arranged on one side plate of the fixed frame to drive the rotation of the lifting lead screw.

[0012] Further, the lower movable fixing seat is in threaded cooperation with the lifting lead screw, and the rotation of the lifting lead screw drives the up and down movement of the lower movable fixing seat; the heat-sealing assembly includes a heat-sealing fixing plate arranged on one side of the lower movable fixing seat, and a lower heat-sealing strip is arranged on the heat-sealing fixing plate.

[0013] Further, the driving assembly includes a cylinder arranged inside the lower movable fixing seat. The output shaft of the cylinder passes through a waist-shaped groove arranged on the side wall of the lower movable fixing seat and is connected to a hinge frame. The hinge frame passes through the waist-shaped groove, and a lower pressing assembly is arranged at one end passing through the waist-shaped groove. The end placed inside the lower movable fixing seat is fixedly connected to a rotating shaft, and the rotating shaft is rotatably matched with the two side walls of the lower movable fixing seat.

[0014] Furthermore, the downward pressing and sealing assembly includes a downward pressing and sealing bottom plate fixed to the hinged frame. A downward pressing and sealing plate is arranged on one side of the downward pressing and sealing bottom plate close to the heat sealing assembly. The air cylinder drives the hinged frame to move, driving the downward pressing and sealing plate to abut against the lower heat sealing strip, so as to realize the heat sealing of the lower edge of the sleeve film bag by the cooperation of the downward pressing and sealing plate and the lower heat sealing strip.

[0015] Compared with the prior art, the utility model has the following advantages: The sealing machine of this application has a concentrated structure, a small volume, and complete functions. It integrates bag sleeving, sealing, and automatic cutting, and can move flexibly, being applicable to any place. The flat and smooth sleeve film bag is realized through the tensioning assembly, and the upper and lower sealing of the clothes sleeve film bag is realized through the pressing plate assembly, the heat sealing assembly, and the downward pressing and sealing assembly; and in cooperation with the lifting assembly, the lower movable fixing seat can move up and down along the lifting screw rod to realize the adjustment of the upper and lower spacing, being applicable to different specifications of clothing and suit sizes. Description of the Drawings

[0016] Figure 1 It is the front view structure diagram of the utility model;

[0017] Figure 2 It is the side view structure diagram of the utility model;

[0018] Figure 3 It is one of the three-dimensional diagrams of the utility model;

[0019] Figure 4 It is the other three-dimensional diagram of the utility model;

[0020] Figure 5 It is the front view structure diagram of the utility model (excluding the pressing bottom plate);

[0021] Figure 6 It is the three-dimensional diagram of the utility model (excluding the pressing bottom plate).

[0022] In the figure: 1 - enclosure assembly, 11 - fixing plate, 12 - side plate, 13 - bakelite board, 14 - roller, 15 - upper electrical box, 2 - tensioning assembly, 21 - stop shaft I, 22 - stop shaft II, 23 - hook, 24 - T-shaped frame, 25 - limit stop I, 26 - limit stop II, 27 - tensioning wheel I, 28 - tensioning wheel II, 29 - lower tensioning wheel, 3 - pressing plate assembly, 31 - bracket, 32 - pressing bottom plate, 33 - pressing plate, 34 - upper pressing plate, 35 - cutter teeth, 36 - spring post, 4 - film sleeve roller shaft, 5 - driving cylinder, 6 - enclosure frame assembly, 61 - fixing frame, 62 - lower electrical box, 63 - base, 7 - lifting assembly, 71 - lifting screw rod, 72 - reducer, 8 - lower movable fixing seat, 81 - waist-shaped slot, 82 - rotating shaft, 9 - heat sealing assembly, 91 - heat sealing fixing plate, 92 - lower heat sealing strip, 10 - driving assembly, 101 - cylinder, 102 - hinge frame, 20 - lower pressing assembly, 201 - lower pressing bottom plate, 202 - lower pressing plate. Specific implementation mode

[0023] To enable those skilled in the art to more clearly understand the technical solution of the present application, the present utility model will be further described below with reference to the accompanying drawings.

[0024] As Figures 1 - 6 shown in the embodiment, an automatic packaging device for finished clothing bags includes a machine head component and a machine body component. The machine head component includes an enclosure assembly 1. A tensioning assembly 2 is arranged above the enclosure assembly 1. A pressing plate assembly 3 is movably installed on the front side of the enclosure assembly 1, an upper electrical box 15 and a film sleeve roller shaft 4 are arranged on the rear side, and driving cylinders 5 are arranged on both the left and right sides. The output end of the driving cylinder 5 is connected to the pressing plate assembly 3. After the film sleeve bag on the film sleeve roller shaft 4 enters between the enclosure assembly 1 and the pressing plate assembly 3 through the tensioning assembly 2 and covers the clothes on the machine body component, the driving cylinder 5 drives the pressing plate assembly 3 to press towards the enclosure assembly 1, so that the cutter teeth 35 of the pressing plate assembly 3 complete the splitting of the film sleeve bag. At the same time, the upper heat sealing strip on the enclosure assembly 1 performs heat sealing on the upper edge of the film sleeve bag. The machine body component includes an enclosure frame assembly 6. A lifting assembly 7 is arranged inside the enclosure frame assembly 6. A lower movable fixing seat 8 is movably arranged on the lifting assembly 7. A heat sealing assembly 9 is arranged on one side of the lower movable fixing seat 8, and a driving assembly 10 is arranged inside the lower movable fixing seat 8, which is movably matched with a lower pressing assembly 20 arranged on one side of the heat sealing assembly 9. The driving assembly 10 drives the lower pressing assembly 20 to abut against the heat sealing assembly 9 to realize heat sealing on the lower edge of the film sleeve bag.

[0025] Specifically, the surrounding plate assembly 1 includes a fixed plate 11 and side plates 12 disposed on both sides of the fixed plate 11. On one side of the fixed plate 11 close to the pressing plate assembly 3, two phenolic boards 13 are provided. The two phenolic boards 13 are symmetrically arranged at intervals, and upper heat sealing strips are provided on the phenolic boards 13. The side plates 12 extend upward, and rollers 14 are provided at the tops of the side plates 12. The rollers 14 are disposed above the tensioning assembly 2. The pressing plate assembly 3 includes brackets 31 obliquely hung on the upper parts of the side plates 12. A pressing bottom plate 32 is provided between the brackets 31 on both sides. On one side of the pressing bottom plate 32 close to the phenolic board 13, two pressing plates 33 are elastically provided for alignment with the pressing bottom plate 32. The two pressing plates 33 are symmetrically arranged at intervals, and the pressing plates 33 are arranged in one-to-one correspondence with the phenolic boards 13. An upper pressing plate 34 is provided above the pressing plates 33. The upper pressing plate 34 is elastically connected to the pressing bottom plate 32. Tooth blades 35 are provided on the bottom end face of the upper pressing plate 34. The output end of the driving cylinder 5 is fixedly matched with the bracket 31 to drive the pressing plates 33 and the tooth blades 35 to move towards the phenolic board 13, and the tooth blades 35 are used to complete the cutting of the sleeve film bag, and the upper heat sealing strips on the phenolic board 13 are used to press the upper edge of the sleeve film bag. In this embodiment, a plurality of spring columns 36 are provided between the upper pressing plate 34 and the pressing bottom plate 32 to achieve elastic pressing and increase the pressing force.

[0026] In this embodiment, the tensioning assembly 2 is used to stretch the sleeve film bag into the head component and the fuselage component. It includes a stop block shaft I 21 and a stop block shaft II 22. The stop block shaft I 21 and the stop block shaft II 22 are arranged side by side between the two side plates 12, and a hook 23 is provided between the stop block shaft I 21 and the stop block shaft II 22 through two T-shaped frames 24. Two limit blocks I 25 are arranged at intervals in the middle of the stop block shaft I 21, and a tensioning wheel I 27 is provided on the limit blocks I 25. Two limit blocks II 26 are arranged at intervals in the middle of the stop block shaft II 22, and a tensioning wheel II 28 is provided on the limit blocks II 26. The limit blocks I 25 and the limit blocks II 26 are arranged in one-to-one correspondence. A lower tensioning wheel 29 is provided at the bottom between the corresponding tensioning wheel I 27 and the tensioning wheel II 28. The two sides of the sleeve film bag on the roller 14 respectively enter between the limit blocks I 25 and the limit blocks II 26 after passing through the tensioning wheel I 27 and the tensioning wheel II 28, and then enter between the phenolic board 13 and the pressing plate assembly 3 and cover the clothes on the hook 23.

[0027] To ensure the tensioning effect of the sleeve film bag, the two tensioning wheels I 27 are connected by a connecting shaft I, the two tensioning wheels II 28 are connected by a connecting shaft II, and the two lower tensioning wheels 29 are connected by a connecting shaft III. The connecting shaft I, the connecting shaft II, and the connecting shaft III form an isosceles triangle, and the connecting shaft I, the connecting shaft II, and the connecting shaft III are respectively connected to the three end corners of the two T-shaped frames 24. In addition, a fixed shaft is provided between the two T-shaped frames 24. The fixed shaft is disposed between the connecting shaft I and the connecting shaft II, and the hook 23 is suspended on the fixed shaft.

[0028] In this embodiment, the bakelite board 13 and the pressing board 33 are right-angled triangular boards with corresponding structures. The hypotenuses correspond to the upper end faces of the clothing sleeve bags. The bakelite board 13 and the pressing board 33 are both two pieces arranged symmetrically at intervals, and a hook 23 is arranged at the interval therebetween. That is, the hook 23 is hung between the bakelite board 13 and the pressing board 33 through the tensioning assembly 2.

[0029] Continue to refer to Figures 1 - 6 It can be seen that the surrounding frame assembly 6 includes a fixed frame 61. A lower electrical box 62 is arranged at the top of the fixed frame 61, a base 63 is arranged at the bottom, a lifting assembly 7 and a lower movable fixing seat 8 are arranged inside the frame. The lower movable fixing seat 8 moves up and down in the fixed frame 61 along the lifting assembly 7. The lifting assembly 7 includes a lifting lead screw 71. The top of the lifting lead screw 71 is rotatably connected to the top plate of the fixed frame 61, and the bottom is rotatably connected to the bottom plate of the fixed frame 61; a speed reducer 72 is arranged on one side plate of the fixed frame 61 to drive the rotation of the lifting lead screw 71. The lower movable fixing seat 8 is in threaded cooperation with the lifting lead screw 71, and the rotation of the lifting lead screw 71 drives the up and down movement of the lower movable fixing seat 8; the heat sealing assembly 9 includes a heat sealing fixing plate 91 arranged on one side of the lower movable fixing seat 8, and a lower heat sealing strip 92 is arranged on the heat sealing fixing plate 91. The driving assembly 10 includes a cylinder 101 arranged inside the lower movable fixing seat 8. The output shaft of the cylinder 101 passes through a waist-shaped groove 81 arranged on the side wall of the lower movable fixing seat 8 and is connected to a hinge frame 102. The hinge frame 102 is arranged in the waist-shaped groove 81. One end passing through the waist-shaped groove 81 is provided with a lower pressing assembly 20, and the end placed inside the lower movable fixing seat 8 is fixedly connected to a rotating shaft 82. The rotating shaft 82 is rotatably matched with the two side walls of the lower movable fixing seat 8. The lower pressing assembly 20 includes a lower pressing bottom plate 201 fixed to the hinge frame 102. A lower pressing plate 202 is arranged on the side of the lower pressing bottom plate 201 close to the heat sealing assembly 9. The cylinder 101 drives the movement of the hinge frame 102, driving the lower pressing plate 202 to abut against the lower heat sealing strip 92, so as to realize the cooperation between the lower pressing plate 202 and the lower heat sealing strip 92 to perform heat sealing on the lower edge of the sleeve bag.

[0030] It can be understood that the speed reducer 72 drives the rotation of the lifting lead screw 71 to drive the up and down movement of the lower movable fixing seat 8, so that the lower movable fixing seat 8 can move up and down along the lifting lead screw 71 to realize the adjustment of the up and down distance, which is applicable to different specifications of clothing and suit sizes; and the cylinder 101 drives the movement of the hinge frame 102, driving the lower pressing plate 202 to abut against the lower heat sealing strip 92, so as to realize the cooperation between the lower pressing plate 202 and the lower heat sealing strip 92 to perform heat sealing on the lower edge of the sleeve bag.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A finished product clothing bagging automatic packaging device, comprising a head component and a body component, characterized in that: The head component comprises a panel assembly (1), a tensioning component (2) is arranged above the panel assembly (1), a pressing plate assembly (3) is movably mounted on the front side of the panel assembly (1), an upper electrical box (15) and a film roller (4) are arranged on the rear side, and a driving cylinder (5) is arranged on the left and right sides, the output end of the driving cylinder (5) is connected to the pressing plate assembly (3), after the film bag on the film roller (4) enters between the panel assembly (1) and the pressing plate assembly (3) through the tensioning component (2) and covers the clothes on the fuselage component, the driving cylinder (5) drives the pressing plate assembly (3) to press against one side of the panel assembly (1), so that the blade teeth (35) of the pressing plate assembly (3) complete the segmentation of the film bag, and at the same time, the upper heat sealing strip on the panel assembly (1) performs heat sealing on the upper edge of the film bag; The fuselage component comprises a frame assembly (6), a lifting assembly (7) is arranged inside the frame assembly (6), a lower movable fixing seat (8) is movably arranged on the lifting assembly (7), a heat sealing assembly (9) is arranged on one side of the lower movable fixing seat (8), and a driving assembly (10) is arranged inside the lower movable fixing seat (8) to movably cooperate with a lower pressing assembly (20) arranged on one side of the heat sealing assembly (9), and the driving assembly (10) drives the lower pressing assembly (20) to abut against the heat sealing assembly (9), thereby achieving heat sealing of the lower edge of the film bag.

2. The automatic packaging device for bagging finished garments according to claim 1, characterized in that: The enclosure assembly (1) comprises a fixed plate (11) and side plates (12) arranged on both sides of the fixed plate (11); two bakelite boards (13) are arranged on one side of the fixed plate (11) close to the clamping plate assembly (3); the two bakelite boards (13) are symmetrically arranged at intervals, and an upper heat sealing strip is arranged on the bakelite boards (13); the side plates (12) are extended upward, and a roller (14) is arranged on the top of the side plates (12); the roller (14) is placed above the tensioning assembly (2).

3. The automatic packaging device for bagging finished garments according to claim 2 is characterized in that: The clamping plate assembly (3) comprises a bracket (31) obliquely hung on the upper part of the side plate (12), a clamping base plate (32) is arranged between the brackets (31) on both sides, two clamping plates (33) are elastically arranged on one side of the clamping base plate (32) close to the bakelite board (13), the two clamping plates (33) are symmetrically arranged at intervals, and the clamping plates (33) are arranged one-to-one with the bakelite board (13); an upper clamping plate is arranged above the clamping plate (33). (34), the upper pressing plate (34) is elastically connected to the pressing bottom plate (32), and a knife tooth (35) is provided on the bottom end surface of the upper pressing plate (34); the output end of the driving cylinder (5) is fixedly matched with the bracket (31), driving the pressing plate (33) and the knife tooth (35) to move toward the bakelite board (13), and completing the segmentation of the film bag through the knife tooth (35), and the pressing of the upper heat sealing strip on the bakelite board (13) to the upper edge of the film bag.

4. The automatic packaging device for bagging finished garments according to claim 3 is characterized in that: The tensioning assembly (2) comprises a stopper shaft I (21) and a stopper shaft II (22), wherein the stopper shaft I (21) and the stopper shaft II (22) are arranged side by side between the side plates (12), and a hook (23) is arranged between the stopper shaft I (21) and the stopper shaft II (22) via a T-shaped frame (24); two limit stoppers I (25) are arranged at intervals in the middle of the stopper shaft I (21), and a tensioning wheel I (27) is arranged on the limit stoppers I (25); two limit stoppers II (26) are arranged at intervals in the middle of the stopper shaft II (22), and the limit stoppers II (27) are arranged on the limit stoppers I (25); A tensioning wheel II (28) is arranged on the block II (26), the limit block I (25) and the limit block II (26) are arranged one by one, and a lower tensioning wheel (29) is arranged at the bottom between the corresponding tensioning wheel I (27) and the tensioning wheel II (28). The two sides of the film bag on the drum (14) respectively enter between the limit block I (25) and the limit block II (26) through the tensioning wheel I (27) and the tensioning wheel II (28), and then enter between the bakelite board (13) and the pressure plate assembly (3) through the two sides of the lower tensioning wheel (29) to cover the clothes on the hook (23).

5. The automatic packaging device for bagging finished garments according to claim 1, characterized in that: The surrounding frame assembly (6) comprises a fixed frame (61), a lower electrical box (62) being arranged on the top of the fixed frame (61), a base (63) being arranged on the bottom, a lifting assembly (7) and a lower movable fixing seat (8) being arranged inside the frame, and the lower movable fixing seat (8) being movable up and down inside the fixed frame (61) along the lifting assembly (7).

6. The automatic packaging device for bagging finished garments according to claim 5, characterized in that: The lifting assembly (7) comprises a lifting screw rod (71), the top of the lifting screw rod (71) being rotatably connected to the top plate of the fixed frame (61), and the bottom of the lifting screw rod (71) being rotatably connected to the bottom plate of the fixed frame (61); a speed reducer (72) is arranged on a side plate of the fixed frame (61) to drive the rotation of the lifting screw rod (71).

7. The automatic packaging device for bagging finished garments according to claim 6, characterized in that: The lower movable fixing seat (8) is threadably engaged with the lifting screw (71), and the rotation of the lifting screw (71) drives the lower movable fixing seat (8) to move up and down; the heat sealing assembly (9) comprises a heat sealing fixing plate (91) arranged on one side of the lower movable fixing seat (8), and a lower heat sealing strip (92) is arranged on the heat sealing fixing plate (91).

8. The automatic packaging device for bagging finished garments according to claim 7, characterized in that: The driving assembly (10) comprises a cylinder (101) arranged in the lower movable fixed seat (8). The output shaft of the cylinder (101) passes through a waist-shaped groove (81) arranged on the side wall of the lower movable fixed seat (8) and is connected to an articulated frame (102). The articulated frame (102) passes through the waist-shaped groove (81). A lower pressing assembly (20) is arranged on one end passing through the waist-shaped groove (81). One end placed in the lower movable fixed seat (8) is fixedly connected to a rotating shaft (82). The rotating shaft (82) is rotatably matched with the two side walls of the lower movable fixed seat (8).

9. The automatic packaging device for bagging finished garments according to claim 8, characterized in that: The lower pressing assembly (20) comprises a lower pressing base plate (201) fixed to the hinged frame (102); a lower pressing plate (202) is arranged on one side of the lower pressing base plate (201) close to the heat sealing assembly (9); the cylinder (101) drives the hinged frame (102) to move, thereby driving the lower pressing plate (202) to abut against the lower heat sealing strip (92), so that the lower pressing plate (202) and the lower heat sealing strip (92) cooperate to heat-seal the lower edge of the film bag.

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