Bag feeding type vacuum packaging machine

Abstract

The invention provides a bag feeding type vacuum packaging machine and relates to the technical field of vacuum packaging, the bag feeding type vacuum packaging machine comprises a packaging machine bottom plate and a packaging bag feeding assembly, a packaging machine bottom shell is fixedly installed at the lower end of the packaging machine bottom plate, and a plurality of packaging machine bottom shell supporting columns are fixedly installed at the lower end of the packaging machine bottom shell; a station rotating disc set is arranged in the middle of the packaging machine bottom plate. Semi-opened packaging bags which are machined are placed on the packaging bag feeding assembly 2, the packaging bags are transferred to the station rotating disc set 8 one by one through negative pressure adsorption, then the packaging bags are transferred to the next station through rotation, the packaging bags are lifted through the negative pressure bag opening lifting rod 12, the negative pressure suction head 13 is pressed on the edges of upper openings of the packaging bags, and then the packaging bags are opened. And the station rotating disc group 8 sucks the edge of the lower opening under negative pressure, the packaging bag is opened, and then the materials are bagged, the step stations are clear, the machining precision is accurate, the problems existing in the prior art can be effectively solved, and the packaging failure rate is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of vacuum packaging, and specifically relates to a bag - type vacuum packaging machine. Background Art

[0002] The bag - type vacuum packaging machine can automatically convey the packaging bags from the bag - feeding part to the bag - filling part to load the packaging items into the vacuum bags, and then convey the bags filled with items to the vacuum - pumping part to pump out the air in the bags. After reaching the predetermined vacuum degree, the sealing process is completed. It can also be filled with nitrogen or other mixed gases and then the sealing process is completed. The bag - type vacuum packaging machine is often used in the food industry because after vacuum packaging, food can be antioxidized, thus achieving the purpose of long - term preservation. For example, a bag - type vacuum packaging machine with a roll - shaped heat - shrinkable bag - type automatic bag - feeding device with the application number CN202120791889.5. When the above - mentioned technical solution is specifically implemented, since the bag - forming process and the packaging process are mixed together, it is extremely easy for the materials to get stuck in the hot - melted gap during packaging, resulting in a great reduction in the sealing performance due to the appearance of gaps in the hot - melting. Therefore, mixing the bag - forming and packaging steps will lead to an increase in the defective rate and a decrease in the packaging success rate. Summary of the Invention

[0003] Aiming at the deficiencies of the prior art, the present invention provides a bag - type vacuum packaging machine, which solves the problems raised in the background art.

[0004] To achieve the above purposes, the present invention is realized through the following technical solutions: A bag - type vacuum packaging machine includes a packaging machine bottom plate and a packaging bag feeding assembly. The lower end of the packaging machine bottom plate is fixedly installed with a packaging machine bottom shell. The lower end of the packaging machine bottom shell is fixedly installed with several packaging machine bottom shell support columns. A working - station rotating disc group is arranged in the middle of the packaging machine bottom plate;

[0005] The packaging bag feeding assembly is fixedly installed on the upper surface of the packaging machine bottom plate and is located on one side of the working - station rotating disc group.

[0006] Preferably, a processing circle lower support ring is fixedly installed on the upper surface of the packaging machine bottom plate and is located outside the working - station rotating disc group. Several processing circle support columns are fixedly installed on the upper surface of the processing circle lower support ring. A packaging support ring is fixedly installed at the upper ends of the processing circle support columns.

[0007] Preferably, several packaging station brackets are arranged on the upper surface of the packaging machine bottom plate and are located outside the working - station rotating disc group. A blanking conveyor belt is fixedly installed on the upper end of one of the packaging station brackets, and a vacuum pump is fixedly installed on the upper end of another packaging station bracket. A hot - melt sealing machine is arranged above the vacuum pump.

[0008] Preferably, a material transfer table is integrally provided at the rear end of the packaging station bracket. At both ends of the upper surface of the material transfer table, first bag-supporting cylinders are fixedly installed. A second bag-supporting cylinder is fixedly installed at the output end of the first bag-supporting cylinder, and a bag-supporting dial plate is provided at the output end of the second bag-supporting cylinder.

[0009] Above the material transfer table, a negative-pressure bag-opening lifting rod is provided, and a negative-pressure suction head is fixedly installed at the output end of the negative-pressure bag-opening lifting rod.

[0010] Preferably, the bag loading assembly includes: a loading angle iron frame, a suspension rod fixing table, a frame fixing suspension rod, a height-limiting frame, a frame side border, a width-limiting plate adjusting seat, a width-limiting plate adjusting screw rod, and a bag width-limiting sliding plate.

[0011] Four of the loading angle iron frames are fixedly installed on the upper surface of the packaging machine bottom plate. A suspension rod fixing table is fixedly installed at the upper end of the loading angle iron frame. A frame fixing suspension rod is fixedly inserted through the suspension rod fixing table. A height-limiting frame is fixedly installed at the lower end of the frame fixing suspension rod, and a frame side border is integrally provided on the side of the height-limiting frame.

[0012] A width-limiting plate adjusting seat is integrally provided on the side of the frame side border. A width-limiting plate adjusting screw rod is inserted through the width-limiting plate adjusting seat, and two bag width-limiting sliding plates are provided on the width-limiting plate adjusting screw rod.

[0013] Preferably, a clamping adjustment seat is integrally provided on the side of the frame side border. A clamping adjustment screw rod is inserted through the clamping adjustment seat, and a bag pressing plate is provided at the front end of the clamping adjustment screw rod.

[0014] Preferably, loading arms are fixedly installed inside two of the loading angle iron frames. An electric rotating rod is provided between the loading arms. A loading driving rod is fixedly installed at the lower end of the electric rotating rod, and driving rod connecting shafts are rotatably installed inside the loading driving rods.

[0015] A negative-pressure loading table is rotatably installed between the driving rod connecting shafts.

[0016] Preferably, a swing rod rotating seat is also rotatably installed inside the loading arm. An upper loading swing rod is rotatably installed inside the swing rod rotating seat. A swing rod connecting shaft is rotatably installed inside the lower end of the upper loading swing rod, and the swing rod connecting shaft is rotatably installed on the negative-pressure loading table.

[0017] Negative-pressure loading holes are provided at the upper end of the negative-pressure loading table.

[0018] Preferably, the station rotating disc group includes: a station rotating disc, a rotating disc driving motor, a bag limiting frame, and a station negative-pressure fixing hole.

[0019] The rotating disk driving motor is fixedly installed on the upper surface of the bottom plate of the packaging machine. A working station rotating disk is fixedly installed on the side of the rotating disk driving motor. A group of two packaging bag limiting frames are fixedly installed on the working station rotating disk. A working station negative pressure fixing hole is provided between each group of the packaging bag limiting frames and on the upper surface of the working station rotating disk.

[0020] Preferably, a negative pressure connection cabin is fixedly installed in the middle of the lower surface of the working station rotating disk. A number of negative pressure connection pipes are fixedly connected to the side of the negative pressure connection cabin. The outer ends of the negative pressure connection pipes are fixedly connected to an orbital negative pressure cabin.

[0021] The present invention provides a bag - feeding vacuum packaging machine, which has the following beneficial effects:

[0022] In the present invention, the semi - open packaging bags that have been processed are placed on the packaging bag loading component 2. Through negative pressure adsorption, the packaging bags are transferred to the working station rotating disk group 8 one by one. Then, they are rotated to transfer the packaging bags to the next working station. The negative pressure opening lifting rod 12 is lifted and lowered to press the negative pressure suction head 13 against the upper edge of the packaging bag opening, while the working station rotating disk group 8 sucks the lower edge by negative pressure to open the packaging bag. Then, the materials are bagged. The steps of the present invention are clearly defined in the working stations and the processing accuracy is accurate, which can effectively improve the problems existing in the prior art and reduce the packaging failure rate.

[0023] After the bagging is completed, the working station is rotated. The heat - melting sealing machine 18 seals the opening of the packaging bag. After starting the vacuum pump 7 to pump out the air, the heat - melting sealing machine 18 immediately performs heat - melting sealing. Then, the working station is switched again, and the packaged finished products are unloaded through the transmission of the blanking conveyor belt 6.

[0024] Among them, the packaging bags are stacked together and placed on the height - limiting frame 204. The interval between the two packaging bag width - limiting sliding plates 208 above them is adjusted to the width suitable for the packaging bags by rotating the width - limiting plate adjusting screw rod 207. Then, the position of the front - end packaging bag pressing plate 211 is adjusted by rotating the rear - end clamping adjusting screw rod 210, so that the packaging bags can be neatly stacked together. Then, the electric rotating rod 213 is started to rotate repeatedly, which can drive the lower - end feeding driving rod 214 to rotate, and then drive the negative pressure feeding table 219 to swing. The lowermost packaging bag is drawn out through the negative pressure feeding holes 220 on it, and then the adsorption is cancelled, and it slides to the working station rotating disk group 8. This is repeated to complete the loading of the packaging bags.

[0025] Among them, it is connected to an external vacuum pump through the negative pressure connection cabin 806 to generate negative pressure. The negative pressure is connected to the orbital negative pressure cabin 805 through the negative pressure connection pipe 807, so that negative pressure is also generated in the working station negative pressure fixing hole 804 at the upper end of the orbital negative pressure cabin 805 to adsorb the packaging bags. In the working station for unloading, it is not connected to facilitate unloading. Description of the Drawings

[0026] Figure 1 This is a schematic structural diagram of the first perspective of the present invention;

[0027] Figure 2 Schematic diagram of the structure of the second viewing angle in the present invention;

[0028] Figure 3 Schematic diagram of the structure of the present invention from a third perspective;

[0029] Figure 4 This is a schematic structural diagram of the packaging bag loading assembly of the present invention from a first perspective;

[0030] Figure 5 This is a structural schematic diagram of the packaging bag loading assembly of the present invention from a second perspective;

[0031] Figure 6 This is a schematic structural diagram of the packaging bag loading assembly of the present invention from a third perspective;

[0032] Figure 7 This is a schematic structural diagram of the workstation rotating disc assembly from the first perspective of the present invention;

[0033] Figure 8 This is a structural schematic diagram of the workstation rotating disk group from a second perspective in the present invention.

[0034] Among them, 1. packaging machine bottom plate; 2. packaging bag feeding assembly; 201. feeding angle iron frame; 202. boom fixing platform; 203. frame fixing boom; 204. height limit frame; 205. frame side frame; 206. width limit plate adjustment seat; 207. width limit plate adjustment screw; 208. packaging bag width limit sliding plate; 209. clamping adjustment seat; 210. clamping adjustment screw; 211. packaging bag clamping plate; 212. feeding support arm; 213. electric rotating rod; 214. feeding drive rod; 215. drive rod connecting shaft; 216. swing rod rotating seat; 217. feeding swing rod; 218. swing rod connecting shaft; 219. negative pressure feeding platform; 220. negative pressure Feeding hole; 3. Packaging machine bottom shell; 4. Packaging machine bottom shell support column; 5. Packaging station bracket; 6. Unloading conveyor belt; 7. Vacuum pump; 8. Station rotating disc group; 801. Station rotating disc; 802. Rotating disc drive motor; 803. Packaging bag limit frame; 804. Station negative pressure fixing hole; 805. Track negative pressure cabin; 806. Negative pressure connecting cabin; 807. Negative pressure connecting pipe; 9. Processing circle lower support ring; 10. Processing circle support column; 11. Packaging support ring; 12. Negative pressure bag opening lifting rod; 13. Negative pressure suction head; 14. Material conveying platform; 15. First bag supporting cylinder; 16. Second bag supporting cylinder; 17. Bag supporting plate; 18. Hot melt sealing machine. DETAILED DESCRIPTION

[0035] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0036] As Figures 1 to 3 shown, an embodiment of the present invention provides a bag - feeding vacuum packaging machine, which includes a packaging machine bottom plate 1 and a packaging bag feeding assembly 2. A packaging machine bottom shell 3 is fixedly installed at the lower end of the packaging machine bottom plate 1, and a plurality of packaging machine bottom shell support columns 4 are fixedly installed at the lower end of the packaging machine bottom shell 3. A station rotating disc group 8 is arranged in the middle of the packaging machine bottom plate 1; the packaging bag feeding assembly 2 is fixedly installed on the upper surface of the packaging machine bottom plate 1 and on one side of the station rotating disc group 8. A processing ring lower support ring 9 is fixedly installed on the upper surface of the packaging machine bottom plate 1 and on the outer circle of the station rotating disc group 8. A plurality of processing ring support columns 10 are fixedly installed on the upper surface of the processing ring lower support ring 9, and a packaging support ring 11 is fixedly installed at the upper ends of the processing ring support columns 10. A plurality of packaging station brackets 5 are arranged on the upper surface of the packaging machine bottom plate 1 and on the outer circle of the station rotating disc group 8. A blanking conveyor belt 6 is fixedly installed on the upper end of one of the packaging station brackets 5, a vacuum pump 7 is fixedly installed on the upper end of another packaging station bracket 5, a hot - melt sealing machine 18 is arranged above the vacuum pump 7, and a material transfer table 14 is integrally arranged at the rear end of another packaging station bracket 5. First bag - supporting cylinders 15 are fixedly installed at both ends of the upper surface of the material transfer table 14, a second bag - supporting cylinder 16 is fixedly installed at the output end of the first bag - supporting cylinder 15, and a bag - supporting dial plate 17 is fixedly installed at the output end of the second bag - supporting cylinder 16; a negative - pressure bag - opening lifting rod 12 is arranged above the material transfer table 14, and a negative - pressure suction head 13 is fixedly installed at the output end of the negative - pressure bag - opening lifting rod 12.

[0037] In the above - mentioned technical solution, by placing the semi - open packaging bags that have been processed on the packaging bag feeding assembly 2, and through negative - pressure adsorption, the packaging bags are transferred to the station rotating disc group 8 one by one. Then, by rotation, the packaging bags are transferred to the next station, and through the lifting of the negative - pressure bag - opening lifting rod 12, the negative - pressure suction head 13 is pressed on the upper - mouth edge of the packaging bag, while the station rotating disc group 8 sucks the lower - mouth edge by negative pressure to open the packaging bag, and then the material is bagged. The steps of the present invention are clearly defined, and the processing accuracy is accurate, which can effectively improve the problems existing in the prior art and reduce the packaging failure rate;

[0038] After the bagging is completed, rotate the working station. At the opening of the packaging bag with the hot melt sealer 18, start the vacuum pump 7 to evacuate the air, and then start the hot melt sealer 18 immediately for hot melt sealing. Subsequently, rotate the working station again and drive through the blanking conveyor belt 6 to unload the packaged finished products.

[0039] As Figure 1 、 Figures 4 to 6 shown, the packaging bag loading assembly 2 includes: loading angle iron frames 201, hanger fixing platforms 202, frame fixing hangers 203, height limiting frames 204, frame side borders 205, width limiting plate adjusting seats 206, width limiting plate adjusting lead screws 207, packaging bag width limiting sliding plates 208; the four loading angle iron frames 201 are fixedly installed on the upper surface of the packaging machine base plate 1, the upper ends of the loading angle iron frames 201 are fixedly installed with hanger fixing platforms 202, the frame fixing hangers 203 are fixedly inserted on the hanger fixing platforms 202, the lower ends of the frame fixing hangers 203 are fixedly installed with height limiting frames 204, and the frame side borders 205 are integrally arranged on the side surfaces of the height limiting frames 204; the width limiting plate adjusting seats 206 are integrally arranged on the side surfaces of the frame side borders 205, the width limiting plate adjusting lead screws 207 are inserted through the width limiting plate adjusting seats 206, two packaging bag width limiting sliding plates 208 are arranged on the width limiting plate adjusting lead screws 207, the clamping adjusting seats 209 are integrally arranged on the side surfaces of the frame side borders 205, the clamping adjusting lead screws 210 are inserted through the clamping adjusting seats 209, and the packaging bag pressing plates 211 are arranged at the front ends of the clamping adjusting lead screws 210. Among them, two loading support arms 212 are fixedly installed inside the loading angle iron frames 201, an electric rotating rod 213 is arranged between the loading support arms 212, the lower end of the electric rotating rod 213 is fixedly installed with a loading driving rod 214, and driving rod connecting shafts 215 are rotatably installed inside the loading driving rods 214; a negative pressure loading platform 219 is rotatably installed between the driving rod connecting shafts 215, a swing rod rotating seat 216 is also rotatably installed inside the loading support arms 212, an upper loading swing rod 217 is rotatably installed inside the swing rod rotating seat 216, a swing rod connecting shaft 218 is rotatably installed inside the lower end of the upper loading swing rod 217, and the swing rod connecting shaft 218 is rotatably installed on the negative pressure loading platform 219; negative pressure loading holes 220 are arranged at the upper end of the negative pressure loading platform 219.

[0040] In the above technical solution, the packaging bags are stacked together and placed on the height-limiting frame 204. The distance between the two packaging bag width-limiting sliding plates 208 on it is adjusted to the width suitable for the packaging bags by rotating the width-limiting plate adjusting screw rod 207. Subsequently, the position of the front-end packaging bag pressing plate 211 is adjusted by rotating the clamping adjusting screw rod 210 at the rear end, so that the packaging bags can be neatly stacked together. Then, the electric rotating rod 213 is started to rotate repeatedly, so as to drive the feeding driving rod 214 at the lower end to rotate, thereby driving the negative-pressure feeding table 219 to swing. The lowermost packaging bag is extracted through the negative-pressure feeding holes 220 on it, and then slides to the station rotating disc group 8 by canceling the adsorption. This process is repeated to complete the feeding of the packaging bags.

[0041] As Figure 1 , Figure 7 Figure 8 As shown in the figure, the station rotating disc group 8 includes: a station rotating disc 801, a rotating disc driving motor 802, a packaging bag limiting frame 803, and a station negative-pressure fixing hole 804. The rotating disc driving motor 802 is fixedly installed on the upper surface of the bottom plate 1 of the packaging machine. The station rotating disc 801 is fixedly installed on the side of the rotating disc driving motor 802. A packaging bag limiting frame 803 in groups of two is fixedly installed on the station rotating disc 801. A station negative-pressure fixing hole 804 is opened between each group of the packaging bag limiting frames 803 and on the upper surface of the station rotating disc 801. A negative-pressure connection cabin 806 is fixedly installed in the middle of the lower surface of the station rotating disc 801. A plurality of negative-pressure connection pipes 807 are fixedly connected to the side of the negative-pressure connection cabin 806. The outer ends of the negative-pressure connection pipes 807 are fixedly connected to an orbital negative-pressure cabin 805.

[0042] In the above technical solution, negative pressure is generated by connecting the negative-pressure connection cabin 806 to an external vacuum pump. The negative pressure is connected to the orbital negative-pressure cabin 805 through the negative-pressure connection pipe 807, so that negative pressure is also generated in the station negative-pressure fixing hole 804 at the upper end of the orbital negative-pressure cabin 805 to adsorb the packaging bags. During the feeding station, it is not connected to facilitate feeding.

[0043] Working principle:

[0044] In the present invention, the semi-open packaging bags that have been processed are placed on the packaging bag feeding assembly 2. Through negative-pressure adsorption, the packaging bags are transferred to the station rotating disc group 8 one by one. Subsequently, they are rotated and transferred to the next station. The negative-pressure opening and lifting rod 12 is lifted and lowered to press the negative-pressure suction head 13 against the upper edge of the packaging bag opening, while the station rotating disc group 8 sucks the lower edge by negative pressure to open the packaging bag, and then the materials are bagged. The steps of the present invention are clearly defined and the processing accuracy is accurate, which can effectively improve the problems existing in the prior art and reduce the packaging failure rate.

[0045] After the bagging is completed, rotate the working station. At the opening of the packaging bag with the hot melt sealer 18, start the vacuum pump 7 to evacuate, and then start the hot melt sealer 18 to immediately perform hot melt sealing. Subsequently, rotate the working station again and convey through the blanking conveyor belt 6 to discharge the packaged finished products;

[0046] Among them, stack the packaging bags together and place them on the height-limiting frame 204. Adjust the interval between the two packaging bag width-limiting sliding plates 208 above it to the width suitable for the packaging bag by rotating the width-limiting plate adjusting screw rod 207. Then rotate the clamping adjusting screw rod 210 at the rear end to adjust the position of the front packaging bag pressing plate 211, so that the packaging bags can be neatly stacked together. After that, start the electric rotating rod 213 to rotate repeatedly, so as to drive the lower feeding driving rod 214 to rotate, and then drive the negative pressure feeding table 219 to swing. Extract the lowermost packaging bag through the negative pressure feeding holes 220 on it, and slide to the working station rotating disc group 8 by canceling the adsorption. Repeat this process to complete the feeding of the packaging bags;

[0047] Among them, connect to an external vacuum pump in the negative pressure connection chamber 806 to generate negative pressure, and connect to the track negative pressure chamber 805 through the negative pressure connection pipe 807, so that negative pressure is also generated in the working station negative pressure fixing hole 804 at the upper end of the track negative pressure chamber 805 to adsorb the packaging bag. At the blanking working station, it is not connected to facilitate blanking.

[0048] Obviously, the above-mentioned embodiments of the present invention are only examples for clearly explaining the present invention, rather than limitations on the implementation manners of the present invention. For those of ordinary skill in the art, other different forms of changes or variations can be made based on the above description. It is impossible to list all the implementation manners here. Any obvious changes or variations derived from the technical solutions of the present invention still fall within the protection scope of the present invention.

Claims

1. A bag - feeding vacuum packaging machine, comprising a packaging machine base plate (1) and a packaging bag feeding component (2), characterized in that, The lower end of the bottom plate (1) of the packaging machine is fixedly installed with a bottom shell (3) of the packaging machine. The lower end of the bottom shell (3) of the packaging machine is fixedly installed with a number of support columns (4) for the bottom shell of the packaging machine. A working station rotating disc group (8) is arranged in the middle of the bottom plate (1) of the packaging machine; The packaging bag feeding assembly (2) is fixedly installed on the upper surface of the bottom plate (1) of the packaging machine and is located on one side of the working station rotating disc group (8).

2. The bag-feeding type vacuum packaging machine according to claim 1, wherein On the upper surface of the bottom plate (1) of the packaging machine and on the outer circle of the working station rotating disc group (8), a lower support ring (9) for the processing circle is fixedly installed. On the upper surface of the lower support ring (9) for the processing circle, a number of support columns (10) for the processing circle are fixedly installed. The upper ends of the support columns (10) for the processing circle are fixedly installed with a packaging support ring (11).

3. The bag-feeding type vacuum packaging machine according to claim 2, characterized in that, On the upper surface of the bottom plate (1) of the packaging machine and on the outer circle of the working station rotating disc group (8), a number of packaging working station brackets (5) are arranged. On the upper end of one of the packaging working station brackets (5), a blanking conveyor belt (6) is fixedly installed. On the upper end of another packaging working station bracket (5), a vacuum pump (7) is fixedly installed. Above the vacuum pump (7), a hot melt sealing machine (18) is arranged.

4. The bag-feeding vacuum packaging machine according to claim 3, characterized in that, At the rear end of another packaging working station bracket (5), a material transfer table (14) is integrally provided. At both ends of the upper surface of the material transfer table (14), a first bag-supporting air cylinder (15) is fixedly installed. On the output end of the first bag-supporting air cylinder (15), a second bag-supporting air cylinder (16) is fixedly installed. On the output end of the second bag-supporting air cylinder (16), a bag-supporting dial plate (17); Above the material transfer table (14), a negative pressure bag-opening lifting rod (12) is arranged. On the output end of the negative pressure bag-opening lifting rod (12), a negative pressure suction head (13) is fixedly installed.

5. The bag-feeding type vacuum packaging machine according to claim 4, characterized in that, The packaging bag feeding assembly (2) includes: a feeding angle iron frame (201), a suspension rod fixing table (202), a frame fixing suspension rod (203), a height-limiting frame (204), a frame side border (205), a width-limiting plate adjusting seat (206), a width-limiting plate adjusting screw rod (207), and a packaging bag width-limiting sliding plate (208); Four of the feeding angle iron frames (201) are fixedly installed on the upper surface of the bottom plate (1) of the packaging machine. The upper end of the feeding angle iron frame (201) is fixedly installed with a suspension rod fixing table (202). The frame fixing suspension rod (203) is fixedly inserted on the suspension rod fixing table (202). The lower end of the frame fixing suspension rod (203) is fixedly installed with a height-limiting frame (204). The frame side border (205) is integrally provided on the side surface of the height-limiting frame (204); The width-limiting plate adjusting seat (206) is integrally provided on the side surface of the frame side border (205). The width-limiting plate adjusting screw rod (207) is inserted on the width-limiting plate adjusting seat (206). Two packaging bag width-limiting sliding plates (208) are arranged on the width-limiting plate adjusting screw rod (207).

6. The bag-feeding vacuum packaging machine according to claim 5, characterized in that, The clamping adjusting seat (209) is integrally provided on the side surface of the frame side border (205). The clamping adjusting screw rod (210) is inserted on the clamping adjusting seat (209). The front end of the clamping adjusting screw rod (210) is provided with a packaging bag pressing plate (211).

7. The bag-feeding type vacuum packaging machine according to claim 6, characterized in that Two of the inner sides of the feeding angle iron frames (201) are fixedly installed with feeding support arms (212). An electric rotating rod (213) is arranged between the feeding support arms (212). The lower end of the electric rotating rod (213) is fixedly installed with a feeding driving rod (214). Driving rod connecting shafts (215) are rotatably installed on the inner sides of the feeding driving rods (214). A negative pressure feeding table (219) is rotatably installed between the driving rod connecting shafts (215).

8. The bag-feeding vacuum packaging machine according to claim 7, characterized in that, A swing rod rotating seat (216) is also rotatably installed on the inner side of the feeding support arm (212). A feeding swing rod (217) is rotatably installed on the inner side of the swing rod rotating seat (216). A swing rod connecting shaft (218) is rotatably installed on the inner side of the lower end of the feeding swing rod (217), and the swing rod connecting shaft (218) is rotatably installed on the negative pressure feeding table (219). Negative pressure feeding holes (220) are arranged on the upper end of the negative pressure feeding table (219).

9. The bag - type vacuum packaging machine according to claim 8, wherein, The station rotating disc group (8) includes: a station rotating disc (801), a rotating disc driving motor (802), a packaging bag limiting frame (803), and a station negative pressure fixing hole (804). The rotating disc driving motor (802) is fixedly installed on the upper surface of the bottom plate (1) of the packaging machine. The station rotating disc (801) is fixedly installed on the side of the rotating disc driving motor (802). Packaging bag limiting frames (803) in groups of two are fixedly installed on the station rotating disc (801). Station negative pressure fixing holes (804) are formed between each group of the packaging bag limiting frames (803) and on the upper surface of the station rotating disc (801).

10. The bag - feeding vacuum packaging machine according to claim 9, characterized in that, A negative pressure connection cabin (806) is fixedly installed in the middle of the lower surface of the station rotating disc (801). A number of negative pressure connection pipes (807) are fixedly connected to the side of the negative pressure connection cabin (806). The outer ends of the negative pressure connection pipes (807) are fixedly connected to a track negative pressure cabin (805).

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