Packaging bag edge cutting device for soup bag processing

Abstract

The invention discloses a packaging bag edge cutting device for soup packet processing, and relates to the technical field of soup packet processing and packaging, and the packaging bag edge cutting device for soup packet processing comprises an edge cutting knife which is arranged on one side of a packaging machine and is used for performing edge cutting treatment on a packaged soup packet packaging bag body; and arc-shaped cutters for assisting in rounding the corners of the soup bag packaging bag body are arranged on the two sides of the edge cutting cutter, and the packaging machine comprises a machine body. After packaging edge sealing treatment is conducted on the soup bag packaging bag body, cutting and grinding treatment is conducted on the soup bag packaging bag body through the edge cutting knife and the multiple sets of grinding strips, sharpness of the edge of the soup bag packaging bag body is eliminated, fingers are prevented from being scratched or other injuries are avoided in the packaging bag using process, and after edge cutting and grinding treatment, the packaging bag is not prone to being scratched. And through the cleaning assembly, the cleanliness of the edge cutting knife and the polishing strip is kept, and the edge cutting knife can conduct edge cutting and polishing operation on the soup bag packaging bag body more efficiently and with high quality.

Description

Technical Field

[0001] The invention relates to the technical field of soup bag processing and packaging, in particular to a packaging bag edge trimming device for soup bag processing. Background Art

[0002] The packaging machine is a commonly used sealing equipment for packaging bags during the soup bag processing process. It uses heat sealing technology to seal the packaging bags. This technology can ensure the sealing of the packaging bags and prevent the soup bags from being contaminated during transportation and storage.

[0003] After the soup bag packaging bag is sealed by the packaging machine, the edge of the packaging bag is right-angled and quite sharp. Especially in the packaging bag composed of multiple layers of plastic film, a trimming device is needed to trim the packaging bag. Trimming can eliminate the sharpness of the edge of the packaging bag and avoid scratching fingers or causing other injuries during the use of the packaging bag. In the process of trimming, some plastic debris after trimming adheres to the trimming tool. The presence of plastic debris increases the resistance during the trimming process and increases the cutting force, which not only reduces the cutting efficiency, but also may cause additional wear to the cutter, affecting the continuous high-quality trimming operation. For this reason, we propose a packaging bag trimming device for soup bag processing. Summary of the invention

[0004] The object of the present invention is to provide a packaging bag trimming device for soup bag processing to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a packaging bag trimming device for soup bag processing, comprising a trimming knife arranged at one side of a packaging machine for trimming the soup bag packaging bag body after packaging, arc-shaped knives are arranged on both sides of the trimming knife to assist in rounding the corners of the soup bag packaging bag body, the packaging machine comprises a body, a feeding tube for soup bag feeding and conveying is arranged on one side of the body, the soup bag packaging bag body is sleeved on the outside of the feeding tube, a sealing machine for sealing the corners of the soup bag packaging bag body is installed on one side of the body, and also comprises a sealing component arranged on the body for sealing the bottom of the soup bag packaging bag body, the sealing component comprises two sets of mounting frames fixed to one side of the body, two sets of transmission plates are arranged between the two sets of mounting frames, and the mounting The frame is provided with a transmission assembly for transmitting the transmission plate, the trimming knife is fixed on the transmission plate, and two groups of trimming knives are symmetrically arranged on one side of the transmission plate, two groups of mounting plates are arranged on the front side of the transmission plate, a telescopic assembly for assisting the telescopic connection of the mounting plate is arranged between the mounting plate and the transmission plate, two groups of heat-sealing plates for heat-sealing with the soup bag packaging bag body are arranged between the two groups of mounting plates, the two groups of mounting plates and the heat-sealing plates are slidably connected by a sliding assembly, the trimming knife is provided with multiple groups of grinding strips for grinding the edges and corners of the soup bag packaging bag body after trimming, a cleaning assembly for cleaning the surface of the grinding strips is arranged on the transmission plate, and a pushing assembly for pushing the heat-sealing plate during the trimming and grinding of the soup bag packaging bag body is arranged between the transmission plate and the heat-sealing plate.

[0006] Preferably, the cleaning component includes a fixing frame fixed to the back side of the transmission plate, a mounting tube is fixed on the fixing frame, a plurality of groups of air blowing nozzles are arranged and mounted on the mounting tube, an air outlet end of each group of the air blowing nozzles is arranged toward the grinding strip, and an inflation component for inflating the inside of the mounting tube is arranged between the mounting tube and the mounting frame.

[0007] Preferably, a plurality of groups of the inflatable components are arranged between the mounting tube and the mounting frame, and the plurality of groups of the inflatable components are arranged in a transverse arrangement.

[0008] Preferably, the inflation assembly includes a piston tube installed on a mounting tube, the interior of the piston tube is slidably connected to a piston plate, one end of the piston tube is slidably connected to a transmission rod, both ends of the transmission rod are respectively fixed to the mounting frame and the piston plate, a first one-way valve is fixed inside the piston tube, an air intake pipe is fixed on the piston tube, and a second one-way valve is installed inside the air intake pipe.

[0009] Preferably, the conducting direction of the first one-way valve and the second one-way valve is from the outside of the air intake pipe to the inside of the mounting pipe.

[0010] Preferably, the telescopic assembly includes a sleeve fixed on the transmission plate, a sliding rod is slidably connected to the sleeve, one end of the sliding rod is fixed to the mounting plate, and a first spring is sleeved on the outer side of the sleeve.

[0011] Preferably, the sliding assembly includes a U-shaped frame fixed on the mounting plate, a guide rod is fixed on the U-shaped frame, two groups of connecting plates are slidably connected to the guide rod, the two groups of connecting plates are respectively fixed to one side of the two groups of heat sealing plates, and a second spring is sleeved on the outer side of the guide rod, and the two ends of the second spring are respectively set to resist the two groups of connecting plates.

[0012] Preferably, the pushing assembly comprises a strip plate fixed to the upper end of the heat sealing plate, the strip plate has an inclined surface on one side close to the transmission plate, a fixing block is fixed to the upper end of the transmission plate, and a driving pin for pushing against the inclined surface is fixed to one side of the fixing block.

[0013] Preferably, the transmission assembly includes symmetrically arranged round rods fixed between two groups of mounting frames, the transmission plate is slidably connected to the two groups of round rods, a rectangular plate is fixed to the lower end of the transmission plate, a mounting seat is fixed to the lower end of the mounting frame, and a cylinder for pushing the rectangular plate is installed on the mounting seat.

[0014] Compared with the prior art, the present invention has the following beneficial effects: After the soup bag packaging bag body is packaged and edge-sealed, the present invention uses a trimming knife and multiple sets of grinding strips to cut and grind the soup bag packaging bag body, thereby eliminating the sharpness of the edge of the soup bag packaging bag body and avoiding scratching fingers or other injuries during the use of the packaging bag. After the trimming and grinding, the cleaning component is used to maintain the cleanliness of the trimming knife and the grinding strips, further facilitating the trimming knife to perform trimming and grinding operations on the soup bag packaging bag body more efficiently and with higher quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall appearance structure of the present invention; Figure 2 It is a schematic diagram of the sealing assembly structure of the present invention; Figure 3 It is a schematic diagram of the transmission assembly structure of the present invention; Figure 4 It is a schematic diagram of the positional relationship between the sealing component and the soup packaging bag of the present invention; Figure 5 It is a schematic diagram of the position relationship of the transmission plate, the mounting plate and the heat sealing plate of the present invention; Figure 6 It is a schematic diagram of the structure of the sliding assembly of the present invention; Figure 7 It is a schematic diagram of the telescopic assembly structure of the present invention; Figure 8 It is a schematic diagram of the position relationship between the transmission plate and the cutter of the present invention; Fig. 9 It is a schematic diagram of the structure of the driving component of the present invention; Fig.10 It is a schematic diagram of the cleaning component and the inflation component structure of the present invention.

[0016] In the figure: 1, soup bag packaging bag body; 2, trimming knife; 201, arc knife; 301, machine body; 302, feeding cylinder; 303, edge sealing machine; 401, mounting frame; 402, transmission plate; 403, heat sealing plate; 501, round rod; 502, rectangular plate; 503, mounting seat; 504, cylinder; 6, mounting plate; 701, sleeve; 702, slide rod; 703, first spring; 801, U-shaped frame; 802, guide Rod; 803, connecting plate; 804, second spring; 9, grinding strip; 1001, strip plate; 1002, inclined plane; 1003, fixing block; 1004, transmission pin; 1101, fixing frame; 1102, mounting pipe; 1103, air blowing nozzle; 1201, piston tube; 1202, piston plate; 1203, transmission rod; 1204, first one-way valve; 1205, air inlet pipe; 1206, second one-way valve. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] Example: See Figure 1-Figure 10 , a packaging bag trimming device for soup bag processing shown in the figure includes a trimming knife 2 arranged on one side of the packaging machine for trimming the soup bag packaging bag body 1 after packaging, and arc-shaped knives 201 are arranged on both sides of the trimming knife 2 to assist in rounding the corners of the soup bag packaging bag body 1. The packaging machine includes a body 301, and a feeding cylinder 302 for feeding and conveying soup bags is arranged on one side of the body 301. The soup bag packaging bag body 1 is sleeved on the outside of the feeding cylinder 302, and an edge sealing machine 303 for sealing the corners of the soup bag packaging bag body 1 is installed on one side of the body 301; It should be noted that the edge banding machine 303 and the feeding cylinder 302 on the machine body 301 are conventional technical means in the technical field, and their working principles and installation methods are not described in detail here; The machine body 301 further includes a sealing assembly for sealing the bottom of the soup bag packaging bag body 1, the sealing assembly includes two sets of mounting frames 401 fixed on one side of the machine body 301, two sets of transmission plates 402 are arranged between the two sets of mounting frames 401, the mounting frames 401 are provided with a transmission assembly for transmitting the transmission plates 402, the trimming knives 2 are fixed on the transmission plates 402, and two sets of trimming knives 2 are symmetrically arranged on one side of the transmission plates 402; It is worth noting that: by using two sets of symmetrically arranged trimming knives 2, it is convenient to perform trimming processing on the soup bag packaging bag body 1 after packaging and the heat-sealed lower end at the same time; Two groups of mounting plates 6 are arranged on the front side of the transmission plate 402, and a telescopic assembly for assisting the mounting plates 6 in telescopic connection is arranged between the mounting plates 6 and the transmission plate 402. Two groups of heat-sealing plates 403 for heat-sealing with the soup bag packaging bag body 1 are arranged between the two groups of mounting plates 6, and the two groups of mounting plates 6 are slidably connected to the heat-sealing plates 403 via a sliding assembly; It is worth noting here that: two groups of heat-sealing plates 403 are arranged symmetrically up and down on one side of the transmission plate 402, so four groups of heat-sealing plates 403 are arranged between the two groups of transmission plates 402, and the heat-sealing plate 403 on one side abuts against one side of the soup bag packaging bag body 1 during the heat-sealing process; The trimming knife 2 is provided with a plurality of grinding strips 9 for grinding the edges and corners of the soup bag packaging bag body 1 after trimming, the transmission plate 402 is provided with a cleaning component for cleaning the surface of the grinding strips 9, and a pushing component for pushing the heat sealing plate 403 during the trimming and grinding process of the soup bag packaging bag body 1 is provided between the transmission plate 402 and the heat sealing plate 403; It should be noted here that: after the soup bag packaging bag body 1 is packaged and edge-sealed, the soup bag packaging bag body 1 is cut and ground by means of a trimming knife 2 and a plurality of grinding strips 9, so as to eliminate the sharpness of the edge of the soup bag packaging bag body 1 and avoid scratching fingers or causing other injuries during the use of the packaging bag. After the trimming and grinding, the cleanliness of the trimming knife 2 and the grinding strips 9 is maintained by means of a cleaning component, so as to further facilitate the trimming and grinding operations of the soup bag packaging bag body 1 by the trimming knife 2 more efficiently and with higher quality.

[0019] Preferably, the cleaning assembly includes a fixing frame 1101 fixed to the back of the transmission plate 402, a mounting tube 1102 is fixed to the fixing frame 1101, a plurality of groups of air blowing nozzles 1103 are arranged and installed on the mounting tube 1102, the air outlet end of each group of air blowing nozzles 1103 is arranged toward the grinding strip 9, and an inflation assembly for inflating the inside of the mounting tube 1102 is arranged between the mounting tube 1102 and the mounting frame 401; It should be noted here that: through the inflation assembly, the gas entering into the mounting tube 1102 is blown out toward the multiple groups of grinding strips 9 on the trimming knife 2 through multiple groups of blowing nozzles 1103, and the packaging bag debris remaining on the trimming knife 2 during the cutting and grinding process is blown out and separated by the blown gas, thereby maintaining the cleanliness of the trimming knife 2 and the grinding strips 9, and further facilitating the trimming and grinding operations of the soup bag packaging bag body 1 by the trimming knife 2 more efficiently and with high quality.

[0020] Preferably, multiple groups of inflatable components are arranged between the mounting tube 1102 and the mounting frame 401, and the multiple groups of inflatable components are arranged in a horizontal arrangement; It should be noted here that the efficiency of inflation is ensured by using multiple sets of inflation components.

[0021] Preferably, the inflation assembly includes a piston tube 1201 installed on the mounting tube 1102, the piston tube 1201 is slidably connected to a piston plate 1202, one end of the piston tube 1201 is slidably connected to a transmission rod 1203, both ends of the transmission rod 1203 are respectively fixed to the mounting frame 401 and the piston plate 1202, a first one-way valve 1204 is fixed to the piston tube 1201, an air intake pipe 1205 is fixed to the piston tube 1201, and a second one-way valve 1206 is installed inside the air intake pipe 1205; It should be noted here that: in the process of driving the transmission plate 402 to move towards each other, the piston plate 1202 is pulled to move inside the piston tube 1201 through the transmission rod 1203. Since the conduction direction of the first one-way valve 1204 and the second one-way valve 1206 is from the outside of the intake pipe 1205 to the inside of the mounting pipe 1102, in the process of pulling the piston plate 1202 to move inside the piston tube 1201 through the transmission rod 1203, negative pressure is generated between the first one-way valve 1204, the second one-way valve 1206 and the piston plate 1202. Under the action of pressure, the outside Part of the gas is sucked into the interior of the piston tube 1201 through the air inlet pipe 1205. After the trimming and grinding of the soup bag packaging bag body 1 is completed, the transmission plate 402 is driven to reset. During the resetting process, the piston plate 1202 is pushed to move inside the piston tube 1201 through the transmission rod 1203. During the movement, the air sucked into the piston tube 1201 is pushed into the interior of the mounting tube 1102 through the first one-way valve 1204. The gas entering the mounting tube 1102 is blown out toward the multiple groups of grinding strips 9 on the trimming knife 2 through multiple groups of blowing nozzles 1103.

[0022] Preferably, the conducting direction of the first one-way valve 1204 and the second one-way valve 1206 is from the outside of the air intake pipe 1205 to the inside of the installation pipe 1102; It should be noted here that the setting of the conduction direction makes it easier to guide the intake air.

[0023] Preferably, the telescopic assembly includes a sleeve 701 fixed on the transmission plate 402, a slide rod 702 is slidably connected to the sleeve 701, one end of the slide rod 702 is fixed to the mounting plate 6, and a first spring 703 is sleeved on the outer side of the sleeve 701; It should be noted here that: the sleeve 701 and the slide rod 702 facilitate the telescopic connection between the transmission plate 402 and the mounting plate 6, and the first spring 703 facilitates the reset of the transmission plate 402 and the mounting plate 6 after the telescopic movement.

[0024] Preferably, the sliding assembly includes a U-shaped frame 801 fixed on the mounting plate 6, a guide rod 802 is fixed on the U-shaped frame 801, two groups of connecting plates 803 are slidably connected to the guide rod 802, the two groups of connecting plates 803 are respectively fixed to one side of the two groups of heat sealing plates 403, and a second spring 804 is sleeved on the outer side of the guide rod 802, and the two ends of the second spring 804 are respectively set against the two groups of connecting plates 803; It should be noted here that: through the sliding connection between the guide rod 802 on the U-shaped frame 801 and the connecting plate 803, the movement of the heat sealing plate 403 after being subjected to force can be slidably guided, and the second spring 804 can be used to support the initial positions of the two groups of heat sealing plates 403, and the second spring 804 can be used to reset the heat sealing plate 403 after movement.

[0025] Preferably, the pushing assembly includes a strip plate 1001 fixed to the upper end of the heat sealing plate 403, a side of the strip plate 1001 close to the transmission plate 402 is provided with an inclined surface 1002, a fixing block 1003 is fixed to the upper end of the transmission plate 402, and a driving pin 1004 for pushing against the inclined surface 1002 is fixed to one side of the fixing block 1003; It should be noted here that: during the process of the trimming knife 2 trimming and grinding the soup bag packaging bag body 1, as the transmission plate 402 moves, the transmission pin 1004 on the fixed block 1003 is abutted against the inclined surface 1002 on the strip plate 1001. During the abutment, the sliding guiding action of the sliding assembly causes the strip plate 1001 and the heat sealing plate 403 to move toward the trimming knife 2 after being stressed. Since the heat sealing plate 403 always remains abutted against the outer side of the soup bag packaging bag body 1 during the movement of the trimming knife 2, the heat sealing plate 403 moves toward the trimming knife 2, pushing the corners of the soup bag packaging bag body 1 after trimming to abut against the grinding strip 9 on the trimming knife 2 with greater force, thereby further improving the effect of grinding the corners of the soup bag packaging bag body 1.

[0026] Preferably, the transmission assembly includes round rods 501 symmetrically arranged and fixed between two groups of mounting frames 401, a transmission plate 402 is slidably connected to the two groups of round rods 501, a rectangular plate 502 is fixed at the lower end of the transmission plate 402, a mounting seat 503 is fixed at the lower end of the mounting frame 401, and a cylinder 504 for pushing the rectangular plate 502 is installed on the mounting seat 503; It should be noted here that: the transmission effect of the cylinder 504 on the rectangular plate 502 facilitates the driving of the rectangular plate 502 and the transmission plate 402 to move. During the movement of the transmission plate 402, it is guided by two groups of round rods 501 so that the transmission plate 402 is horizontally transmitted between the two groups of mounting frames 401.

[0027] In this scheme: a packaging bag trimming device for soup bag processing comprises the following steps: During the process of the packaging machine packaging the soup bag, the soup bag packaging bag body 1 is sleeved on the outside of the feeding tube 302 and conveyed downward. During the conveying process, the side edges of the soup bag packaging bag body 1 are sealed by the edge sealing machine 303, and then the two sets of transmission plates 402 are driven to move closer to each other between the two sets of mounting frames 401 through the transmission component. During the movement of the two sets of transmission plates 402 closer to each other, the heat sealing plate 403 is driven to move through the connection between the telescopic component and the mounting plate 6 and the transmission action of the guide component. During the movement, the heat sealing plate 403 on one side of the transmission plate 402 is abutted against one side of the soup bag packaging bag body 1. The four groups of heat-sealing plates 403 between the moving plates 402 are pressed against the two sides of the soup bag packaging bag body 1 for heating, and the lower end of the soup bag packaging bag body 1 is heat-sealed. Under the cooperation of the edge sealing machine 303 and the heat-sealing plates 403, the sides and the lower end of the soup bag packaging bag body 1 are sealed. After the sealing is completed, the soup bag is put into the inside of the feeding tube 302 and falls into the inside of the soup bag packaging bag body 1. After the dropping is completed, the soup bag packaging bag body 1 is driven to descend. After the descent is completed, the heat-sealing plates 403 are driven again to press against the outer side of the soup bag packaging bag body 1 to seal the upper end of the soup bag packaging bag body 1, and the packaging operation of the soup bag packaging bag body 1 is further completed. In the process of driving the heat sealing plate 403 to abut against the outer side of the soup bag packaging bag body 1 to perform heat sealing operation on the upper and lower ends of the soup bag packaging bag body 1, after the heat sealing plates 403 on both sides abut against the soup bag packaging bag body 1, the transmission plate 402 is continued to be driven to move closer to each other. Because the heat sealing plates 403 on both sides abut against the two sides of the soup bag packaging bag body 1 and maintain the abutment limit, the transmission plate 402 continues to move, causing the transmission plate 402 to move toward the heat sealing plate 403. During the movement, the transmission plate The trimming knife 2 on 402 passes through between the two sets of heat-sealing plates 403 on one side and contacts the soup bag packaging bag body 1. The trimming knife 2 is used to cut the soup bag packaging bag body 1 after the sealing and packaging is completed. In the process of cutting and separating, the trimming knife 2 is fixed with arc-shaped knives 201 on both sides. The arc-shaped corners are cut on the soup bag packaging bag body 1 by the arc-shaped knives 201, eliminating the sharpness of the edge of the soup bag packaging bag body 1, avoiding scratching fingers or causing other injuries during the use of the packaging bag, and as The movement of the trimming knife 2 causes the multiple groups of grinding strips 9 on the trimming knife 2 to abut against the corners of the soup bag packaging bag body 1 after trimming, and the corners of the soup bag packaging bag body 1 are ground to ensure that the sharpness of the soup bag packaging bag body 1 is reduced after trimming. In addition, during the process of the trimming knife 2 trimming and grinding the soup bag packaging bag body 1, as the transmission plate 402 moves, the transmission pin 1004 on the fixed block 1003 abuts against the inclined surface 1002 on the strip plate 1001. During the process of resisting each other, the sliding guide function of the sliding assembly causes the stressed strip plate 1001 and the heat sealing plate 403 to move toward the trimming knife 2. Since the heat sealing plate 403 always resists against the outer side of the soup bag packaging bag body 1 during the movement of the trimming knife 2, the heat sealing plate 403 moves toward the trimming knife 2, pushing the edge of the soup bag packaging bag body 1 after trimming to resist the grinding strip 9 on the trimming knife 2 with greater force, further improving the effect of grinding the edge of the soup bag packaging bag body 1. In the process of driving the transmission plate 402 to move towards each other, the piston plate 1202 is pulled to move inside the piston tube 1201 through the transmission rod 1203. Since the conduction direction of the first one-way valve 1204 and the second one-way valve 1206 is from the outside of the air inlet pipe 1205 to the inside of the mounting tube 1102, in the process of pulling the piston plate 1202 to move inside the piston tube 1201 through the transmission rod 1203, negative pressure is generated between the first one-way valve 1204, the second one-way valve 1206 and the piston plate 1202. Under the action of pressure, part of the external gas is sucked into the interior of the piston tube 1201 through the air inlet pipe 1205. After the trimming and grinding of the soup bag packaging bag body 1 is completed, the driving The transmission plate 402 is reset, and during the resetting process, the piston plate 1202 is pushed to move inside the piston tube 1201 by the transmission rod 1203. During the movement, the air sucked into the piston tube 1201 is pushed into the interior of the mounting tube 1102 through the first one-way valve 1204. The gas entering the interior of the mounting tube 1102 is blown out toward the multiple groups of grinding strips 9 on the trimming knife 2 through multiple groups of blowing nozzles 1103. The packaging bag debris remaining on the trimming knife 2 during the cutting and grinding process is blown out and separated by the blown gas, thereby maintaining the cleanliness of the trimming knife 2 and the grinding strips 9, and further facilitating the trimming and grinding operations of the soup bag packaging bag body 1 by the trimming knife 2 more efficiently and with higher quality.

[0028] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A packaging bag trimming device for soup bag processing, comprising: A trimming knife (2) is arranged on one side of the packaging machine for trimming the soup bag packaging bag body (1) after packaging, and arc-shaped knives (201) are arranged on both sides of the trimming knife (2) to assist in rounding the corners of the soup bag packaging bag body (1). The packaging machine comprises a machine body (301), and a feeding cylinder (302) for feeding and conveying soup bags is arranged on one side of the machine body (301). The soup bag packaging bag body (1) is sleeved on the outside of the feeding cylinder (302), and an edge sealing machine (303) for sealing the corners of the soup bag packaging bag body (1) is installed on one side of the machine body (301); It is characterized by further comprising: A sealing assembly for sealing the bottom of a soup bag packaging bag body (1) is arranged on a machine body (301), the sealing assembly comprising two groups of mounting frames (401) fixed on one side of the machine body (301), two groups of transmission plates (402) are arranged between the two groups of mounting frames (401), a transmission assembly for transmitting the transmission plates (402) is arranged on the mounting frames (401), the trimming knives (2) are fixed on the transmission plates (402), and two groups of trimming knives (2) are symmetrically arranged on one side of the transmission plates (402), two groups of mounting plates (6) are arranged on the front side of the transmission plates (402), and a transmission assembly for assisting the mounting plates (6) and the transmission plates (402) is arranged between the mounting plates (6) and the transmission plates (402). The mounting plate (6) is telescopically connected to the mounting plate (6); two groups of heat-sealing plates (403) for heat-sealing with the soup bag packaging bag body (1) are arranged between the two groups of mounting plates (6); the two groups of mounting plates (6) and the heat-sealing plates (403) are slidably connected via a sliding assembly; the trimming knife (2) is provided with a plurality of groups of grinding strips (9) for grinding the edges and corners of the soup bag packaging bag body (1) after trimming; the transmission plate (402) is provided with a cleaning assembly for cleaning the surface of the grinding strips (9); and a pushing assembly for pushing the heat-sealing plate (403) during the trimming and grinding process of the soup bag packaging bag body (1) is arranged between the transmission plate (402) and the heat-sealing plate (403).

2. The packaging bag trimming device for soup dumpling processing according to claim 1, characterized in that: The cleaning component comprises a fixing frame (1101) fixed to the back of the transmission plate (402), a mounting tube (1102) being fixed to the fixing frame (1101), a plurality of groups of air blowing nozzles (1103) being arranged and mounted on the mounting tube (1102), the air outlet end of each group of the air blowing nozzles (1103) being arranged toward the grinding strip (9), and an inflation component for inflating the interior of the mounting tube (1102) being arranged between the mounting tube (1102) and the mounting frame (401).

3. The packaging bag trimming device for soup dumpling processing according to claim 2, characterized in that: The inflatable components are arranged in multiple groups between the mounting tube (1102) and the mounting frame (401), and the multiple groups of inflatable components are arranged in a transverse arrangement.

4. The packaging bag trimming device for soup dumpling processing according to claim 3, characterized in that: The inflation assembly comprises a piston tube (1201) mounted on a mounting tube (1102); the piston tube (1201) is slidably connected to a piston plate (1202) inside; one end of the piston tube (1201) is slidably connected to a transmission rod (1203); the two ends of the transmission rod (1203) are respectively fixed to a mounting frame (401) and a piston plate (1202); a first one-way valve (1204) is fixed inside the piston tube (1201); an air intake pipe (1205) is connected and fixed to the piston tube (1201); and a second one-way valve (1206) is installed inside the air intake pipe (1205).

5. The packaging bag trimming device for soup dumpling processing according to claim 4, characterized in that: The conducting direction of the first one-way valve (1204) and the second one-way valve (1206) is from the outside of the air intake pipe (1205) to the inside of the installation pipe (1102).

6. The soup bag processing packaging bag trimming device according to claim 1, characterized in that: The telescopic assembly comprises a sleeve (701) fixed on a transmission plate (402), a slide rod (702) being slidably connected to the sleeve (701), one end of the slide rod (702) being fixed to a mounting plate (6), and a first spring (703) being sleeved on the outer side of the sleeve (701).

7. The soup bag processing packaging bag trimming device according to claim 6, characterized in that: The sliding assembly comprises a U-shaped frame (801) fixed on a mounting plate (6), a guide rod (802) fixed on the U-shaped frame (801), two groups of connecting plates (803) slidably connected to the guide rod (802), the two groups of connecting plates (803) being respectively fixed to one side of two groups of heat sealing plates (403), a second spring (804) being sleeved on the outer side of the guide rod (802), and two ends of the second spring (804) being respectively arranged to abut against the two groups of connecting plates (803).

8. The soup bag processing packaging bag trimming device according to claim 1, characterized in that: The pushing assembly comprises a strip plate (1001) fixed to the upper end of the heat sealing plate (403); a side of the strip plate (1001) close to the transmission plate (402) is provided with an inclined surface (1002); a fixing block (1003) is fixed to the upper end of the transmission plate (402); and a driving pin (1004) for pushing against the inclined surface (1002) is fixed to one side of the fixing block (1003).

9. The soup bag processing packaging bag trimming device according to claim 1, characterized in that: The transmission assembly comprises symmetrically arranged round rods (501) fixed between two groups of mounting frames (401); the transmission plate (402) is slidably connected to the two groups of round rods (501); a rectangular plate (502) is fixed at the lower end of the transmission plate (402); a mounting seat (503) is fixed at the lower end of the mounting frame (401); and a cylinder (504) for pushing the rectangular plate (502) is installed on the mounting seat (503).

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