Conversion device for packaging stations of vacuum packaging machine

Abstract

The utility model relates to the technical field of vacuum packaging machine equipment, and discloses a vacuum packaging machine packaging station conversion device which comprises a working table, a conversion mechanism is arranged at the top of the working table, a connecting mechanism is arranged at the bottom of the conversion mechanism, and a discharging mechanism is arranged on the left side of the top of the working table. The switching mechanism comprises connecting frames, the connecting frames are fixedly connected to the periphery of the outer wall of the workbench, and hollow boxes are fixedly connected to the top ends of the connecting frames. According to the packaging station switching device, the packaging station switching effect is achieved through cooperation of an electric push rod, a sawtooth strip, a first gear, a first driving bevel gear, a third rotating rod, a first connecting belt, an arc-shaped rod and a containing station, and the packaging station switching effect is achieved through cooperation of a second worm, a second worm gear, a special-shaped rod, a second connecting rod, a right-angle plate, an air pump, an air inlet pipe and a suction cup. And the effect of full-automatic discharging of the packaged packaging bags is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum packaging machine equipment, in particular to a conversion device for a packaging station of a vacuum packaging machine. Background Art

[0002] The vacuum packaging machine is a semi-automatic vacuum packaging equipment. You only need to press the vacuum chamber cover to automatically complete the entire process of vacuuming, sealing, printing and exhausting according to the set program. Vacuum packaging is also called decompression packaging. It is to extract all the air in the packaging container and seal it to maintain a highly decompressed state in the bag. The scarce air is equivalent to the low oxygen effect, thereby achieving the purpose of keeping food fresh and free of disease and decay.

[0003] The existing vacuum packaging machine achieves the effect of vacuum packaging by evacuating the packaging bag through a set program. However, the existing vacuum packaging machine usually performs packaging work in a single station, and the station cannot switch operations to the next step after packaging, which makes it difficult to meet the needs of use. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a conversion device for the packaging station of a vacuum packaging machine, aiming to improve the problem in the prior art that when the vacuum packaging machine is used, the station cannot be converted to perform the next step after packaging.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a conversion device for a packaging station of a vacuum packaging machine, comprising a workbench, a conversion mechanism is arranged on the top of the workbench, a connecting mechanism is arranged on the bottom of the conversion mechanism, and a material discharge mechanism is arranged on the left side of the top of the workbench;

[0006] The conversion mechanism includes a connecting frame, the outer wall of the workbench is fixedly connected to the connecting frame, the top of the connecting frame is fixedly connected to a hollow box, the rear side of the inner wall of the hollow box is fixedly connected to an electric push rod, the output end of the electric push rod is fixedly connected to a movable rod, the front and rear ends of the right side of the inner wall of the hollow box are fixedly connected to a first fixed rod, the left end of the first fixed rod is fixedly connected to a fixed sleeve, the front end of the movable rod passes through the fixed sleeve, the middle left part of the movable rod is fixedly connected to a sawtooth bar, the middle part of the bottom end of the inner wall of the hollow box is rotatably connected to a second rotating rod, and the top of the second rotating rod is fixedly connected to the first Gear, the first gear is meshed with the sawtooth bar, the top wall of the first gear is fixedly connected with the first worm, the first rotating rod is rotatably connected to the middle and upper part of the right side of the inner wall of the hollow box, the left end of the first rotating rod is fixedly connected to the first worm wheel, the first worm is meshed with the first worm wheel, the left side of the first worm wheel is fixedly connected with the first connecting rod, the left end of the first connecting rod is fixedly connected with the first driving bevel gear, a third rotating rod is arranged on the left side of the middle part of the bottom end of the inner wall of the hollow box, the top of the third rotating rod is fixedly connected with the first driven bevel gear, and the first driven bevel gear is meshed with the first driving bevel gear.

[0007] As a further description of the above technical solution:

[0008] The first gear is connected with the drive gear of the driving member, and the second gear is connected with the drive gear of the driving member, and the second gear is connected with the drive gear of the driving member, and the second gear is connected with the drive gear of the driving member.

[0009] As a further description of the above technical solution:

[0010] The connecting mechanism includes a second driving pulley, a second driving pulley is fixedly connected to the middle part of the fifth rotating rod, the second driving pulley is connected to the second driven pulley through a second connecting belt, the outer wall of the second connecting belt is fixedly connected to a first tooth, the front and rear sides of the middle part of the top wall of the workbench are rotatably connected to a sixth rotating rod, the top end of the sixth rotating rod on the rear side is fixedly connected to a third driven pulley, the top end of the sixth rotating rod on the front side is fixedly connected to the third driving pulley, the third driven pulley is connected to the third driving pulley through a third connecting belt, the outer wall of the third connecting belt is fixedly connected to a second tooth, and the second tooth is meshingly connected to the first tooth.

[0011] As a further description of the above technical solution:

[0012] The unloading mechanism includes a tenth rotating rod, a tenth rotating rod is rotatably connected to the left end of the rear side of the top wall of the workbench, a fifth gear is fixedly connected to the top of the tenth rotating rod, a second fixed rod is fixedly connected to the top wall of the fifth gear, a second fixed rod is fixedly connected to the bottom end of the second fixed rod is fixedly connected to the second active bevel gear, a fixed plate is fixedly connected to the left side of the inner wall of the workbench, a second worm is fixedly connected to the right side of the fixed plate, a second driven bevel gear is fixedly connected to the right side of the second worm, and the second driven bevel gear is meshed with the second active bevel gear, a seventh rotating rod is rotatably connected to the rear side of the workbench, a second worm gear is fixedly connected to the front end of the seventh rotating rod, a special-shaped rod is fixedly connected to the front side of the second worm gear, and a second fixing ring is installed at the front end of the outer wall of the special-shaped rod, an eighth rotating rod is rotatably connected to the left end of the workbench, a right-angle plate is rotatably connected to the front end of the eighth rotating rod, a ninth rotating rod is rotatably connected to the middle and lower part of the front side of the right-angle plate, and a first fixing ring is installed on the outer side of the ninth rotating rod, and the first fixing ring is connected to the second fixing ring through a second connecting rod.

[0013] As a further description of the above technical solution:

[0014] An air pump is installed on the left side of the middle of the top of the workbench, the input end of the air pump is connected to an air inlet pipe, the front side of the air inlet pipe is connected to a connecting pipe, the ends of the air inlet pipe and the connecting pipe are connected to suction cups, the front and rear ends of the left side of the right-angle plate are fixedly connected with pull ring rods, the air inlet pipe and the connecting pipe respectively pass through the corresponding pull ring rods, and the output end of the air pump is connected to an air outlet pipe.

[0015] As a further description of the above technical solution:

[0016] A slip ring is fixedly connected to the bottom of the outer wall of the third gear, a ring groove is opened at the front right end of the workbench, the slip ring is slidably connected to the ring groove, and a control switch is installed at the front left end of the workbench, and the control switch is electrically connected to the electric push rod and the air pump respectively.

[0017] As a further description of the above technical solution:

[0018] The top wall of the hollow box is fixedly connected with a plurality of strips at equal intervals, and the plurality of strips are connected through filter plates.

[0019] As a further description of the above technical solution:

[0020] The bottom wall of the workbench is fixedly connected with a bracket, and a stabilizing block is installed at the end of the bracket.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, the effect of packaging station conversion is achieved through the cooperation of the electric push rod, the sawtooth bar, the first gear, the first worm, the first worm wheel, the first active bevel gear, the third rotating rod, the first connecting belt, the arc rod and the placement station, and the packaging operation is carried out at multiple stations, which is easier to meet the needs of use.

[0023] 2. In the utility model, through the cooperation of the second active bevel gear, the second driven bevel gear, the second worm, the second worm wheel, the special-shaped rod, the second connecting rod, the right-angle plate, the air pump, the air inlet pipe and the suction cup, the effect of fully automatic unloading of the packaged bags is achieved, thereby reducing the labor of manual unloading and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a front view of a conversion device for a packaging station of a vacuum packaging machine proposed by the utility model;

[0025] Figure 2 A three-dimensional diagram of a conversion device for a packaging station of a vacuum packaging machine proposed by the utility model;

[0026] Figure 3 A schematic diagram of a conversion mechanism of a conversion device for a packaging station of a vacuum packaging machine proposed by the utility model;

[0027] Figure 4 This is a schematic diagram of a connection mechanism of a conversion device for a packaging station of a vacuum packaging machine proposed by the utility model;

[0028] Figure 5 This is a schematic diagram of a material unloading mechanism of a conversion device for a packaging station of a vacuum packaging machine proposed by the utility model;

[0029] Figure 6 The utility model is a schematic diagram of the workbench structure of a conversion device for a packaging station of a vacuum packaging machine.

[0030] Legend:

[0031] 1. Workbench; 2. Conversion mechanism; 201. Electric push rod; 202. First rotating rod; 203. Hollow box; 204. Movable rod; 205. First fixed rod; 206. Fixed sleeve; 207. Sawtooth bar; 208. Second rotating rod; 209. First gear; 210. Third rotating rod; 211. First driven bevel gear; 212. First driving bevel gear; 213. First connecting rod; 214. First worm; 215. First Worm gear; 216, connecting frame; 217, first driving pulley; 218, first connecting belt; 219, first driven pulley; 220, fourth rotating rod; 221, third gear; 222, placing station; 223, arc rod; 224, second gear; 225, fifth rotating rod; 3, connecting mechanism; 301, second driving pulley; 302, second connecting belt; 303, third driving pulley; 304, third connecting belt; 305, second tooth; 306, sixth rotating rod; 307, third driven pulley; 308, first tooth; 309, second driven pulley; 4, unloading mechanism; 401, second fixed rod; 402, second driven bevel gear; 403, second worm; 404, second worm wheel; 405, seventh rotating rod; 406, special-shaped rod; 407, right-angle plate; 408, eighth rotating rod; 409, ninth rotating rod; 410, pull rod Ring rod; 411, air inlet pipe; 412, connecting pipe; 413, suction cup; 414, air outlet pipe; 415, first fixed ring; 416, air pump; 417, second connecting rod; 418, second fixed ring; 419, tenth rotating rod; 420, fifth gear; 421, second active bevel gear; 422, fixed plate; 5, slip ring; 6, ring groove; 7, filter plate; 8, strip plate; 9, bracket; 10, stabilizing block; 11, control switch. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] Reference Figure 1-6 The utility model provides an embodiment: a conversion device for a packaging station of a vacuum packaging machine, comprising a workbench 1, a conversion mechanism 2 is arranged on the top of the workbench 1, a connecting mechanism 3 is arranged on the bottom of the conversion mechanism 2, and a material discharge mechanism 4 is arranged on the left side of the top of the workbench 1;

[0034] The conversion mechanism 2 includes a connecting frame 216, the outer wall of the workbench 1 is fixedly connected with the connecting frame 216, the top of the connecting frame 216 is fixedly connected with the hollow box 203, the rear side of the inner wall of the hollow box 203 is fixedly connected with the electric push rod 201, the output end of the electric push rod 201 is fixedly connected with the movable rod 204, the front and rear ends of the right side of the inner wall of the hollow box 203 are fixedly connected with the first fixed rod 205, the left end of the first fixed rod 205 is fixedly connected with the fixed sleeve 206, and the electric push rod is opened. 201 is telescopic and pushes the movable rod 204 to slide in the fixed sleeve 206. The front end of the movable rod 204 penetrates the fixed sleeve 206. The middle left part of the movable rod 204 is fixedly connected with a sawtooth bar 207. The middle part of the bottom end of the inner wall of the hollow box 203 is rotatably connected with a second rotating rod 208. The top of the second rotating rod 208 is fixedly connected with a first gear 209. The first gear 209 is meshed with the sawtooth bar 207. The top wall of the first gear 209 is fixedly connected with a first worm 214. The sawtooth bar 207 installed on the moving rod 204 meshes with the first gear 209 to drive the first gear 209, the second rotating rod 208 and the first worm 214 to rotate. The first rotating rod 202 is rotatably connected to the middle and upper part of the right side of the inner wall of the hollow box 203. The left end of the first rotating rod 202 is fixedly connected to the first worm wheel 215. The first worm 214 is meshed with the first worm wheel 215. When the first worm 214 rotates, it meshes with the first worm wheel 215 to drive the first worm wheel 214. 5 rotates, the left side of the first worm gear 215 is fixedly connected with the first connecting rod 213, the left end of the first connecting rod 213 is fixedly connected with the first active bevel gear 212, and the first connecting rod 213 and the first active bevel gear 212 rotate together, a third rotating rod 210 is arranged on the left side of the middle part of the bottom end of the inner wall of the hollow box 203, the top end of the third rotating rod 210 is fixedly connected with the first driven bevel gear 211, and the first driven bevel gear 211 is meshedly connected with the first active bevel gear 212.

[0035] The end of the third rotating rod 210 passes through the hollow box 203 and is fixedly connected to the first driving pulley 217. The bottom wall of the first driving pulley 217 is fixedly connected to the fifth rotating rod 225. The third rotating rod 210, the first driving pulley 217 and the fifth rotating rod 225 are synchronously rotated through the meshing transmission of the first driving bevel gear 212 and the first driven bevel gear 211. The rear side of the bottom wall of the hollow box 203 is rotatably connected to the fourth rotating rod 220. The bottom end of the fourth rotating rod 220 is fixedly connected to the first driven pulley 219. The first driving pulley 217 is connected to the first driven pulley 219 through the first connecting belt 218. The middle and lower part of the outer wall of the fifth rotating rod 225 is fixedly connected to the second gear 224. The front side of the second gear 224 is meshed with the The third gear 221 is connected to the fourth rotating rod 220, and the second gear 224 is meshed with the third gear 221 for transmission when the fifth rotating rod 225 rotates. The end of the fourth rotating rod 220 is fixedly connected to the second driven pulley 309, and the first driven pulley 219 and the second driven pulley 309 are driven to rotate through the connection transmission of the first connecting belt 218. The second driven pulley 309 and the bottom wall of the third gear 221 are fixedly connected with an arc rod 223. The ends of the two arc rods 223 penetrate the workbench 1 and are fixedly connected with the placement station 222, so that the two arc rods 223 rotate away from the placement station 222, and the packaging bags that have been packaged on the placement station 222 are converted to achieve the effect of packaging station conversion.

[0036] The connecting mechanism 3 includes a second driving pulley 301, the middle part of the fifth rotating rod 225 is fixedly connected with the second driving pulley 301, the second driving pulley 301 is connected to the second driven pulley 309 through the second connecting belt 302, when the first driven pulley 219 and the first driving pulley 217 rotate, the second driving pulley 301 and the second driven pulley 309 are synchronously driven to rotate, the outer wall of the second connecting belt 302 is fixedly connected with the first tooth 308, synchronously driving the second connecting belt 302 and the first tooth 308 to rotate, the middle part of the top wall of the workbench 1 is rotatably connected with the front and rear sides thereof The sixth rotating rod 306, the top end of the rear sixth rotating rod 306 is fixedly connected with the third driven pulley 307, the top end of the front sixth rotating rod 306 is fixedly connected with the third driving pulley 303, the third driven pulley 307 is connected to the third driving pulley 303 through the third connecting belt 304, the outer wall of the third connecting belt 304 is fixedly connected with the second teeth 305, the second teeth 305 are meshingly connected with the first teeth 308, and the meshing transmission of the first teeth 308 and the second teeth 305 drives the third connecting belt 304, the third driving pulley 303 and the third driven pulley 307 to rotate synchronously.

[0037] The unloading mechanism 4 includes a tenth rotating rod 419, and the tenth rotating rod 419 is rotatably connected to the left end of the rear side of the top wall of the workbench 1, and the top of the tenth rotating rod 419 is fixedly connected to the fifth gear 420, and the top wall of the fifth gear 420 is fixedly connected to the second fixed rod 401, and the bottom end of the second fixed rod 401 is fixedly connected to the second active bevel gear 421, and the second fixed rod 401 and the second active bevel gear 421 are driven to rotate through the meshing transmission of the second tooth 305 and the fifth gear 420, and a fixed plate 422 is fixedly connected to the left side of the inner wall of the workbench 1, and the right side of the fixed plate 422 is fixedly connected to the second worm 403, and the right side of the second worm 403 is fixedly connected to the second driven bevel gear 402, and the second driven bevel gear 402 is meshed with the second active bevel gear 421, and the second driven bevel gear 402 and the second worm 403 are driven to rotate through the meshing transmission of the second active bevel gear 421 and the second driven bevel gear 402. The rear side of the workbench 1 is rotatably connected with a seventh rotating rod 405, the front end of the seventh rotating rod 405 is fixedly connected with a second worm gear 404, the front side of the second worm gear 404 is fixedly connected with a special-shaped rod 406, and the special-shaped rod 406 is rotated and moved by the meshing transmission of the second worm gear 403 and the second worm gear 404, and a second fixing ring 418 is installed at the front end of the outer wall of the special-shaped rod 406. The left end of the workbench 1 is rotatably connected with an eighth rotating rod 408, and the eighth rotating rod 408 is fixedly connected with a second worm gear 404. The front end is rotatably connected to a right-angle plate 407, and the middle and lower front part of the right-angle plate 407 is rotatably connected to a ninth rotating rod 409. The outer side of the ninth rotating rod 409 is installed with a first fixing ring 415. At the same time, the second fixing ring 418, the second connecting rod 417, the first fixing ring 415 and the ninth rotating rod 409 are pulled, and the first fixing ring 415 is connected to the second fixing ring 418 through the second connecting rod 417, so that the right-angle plate 407 swings on the eighth rotating rod 408.

[0038] An air pump 416 is installed on the left side of the middle of the top of the workbench 1, and the input end of the air pump 416 is connected to the air inlet pipe 411, and the front side of the air inlet pipe 411 is connected to the connecting pipe 412, and the ends of the air inlet pipe 411 and the connecting pipe 412 are connected to the suction cup 413. At the same time, the air pump 416 drives the air inlet pipe 411, the connecting pipe 412 and the suction cup 413 to intake air, and the front and rear ends of the left side of the right-angle plate 407 are fixedly connected with the pull ring rod 410, so that the swinging suction cup 413 is adsorbed onto the packaging bag that has completed the station conversion, and the air inlet pipe 411 and the connecting pipe 412 respectively pass through the corresponding pull ring rod 410, and the output end of the air pump 416 is connected to the air outlet pipe 414, and the inhaled air is discharged through the air outlet pipe 414, thereby realizing the effect of fully automatic unloading of the packaged packaging bags.

[0039] A slip ring 5 is fixedly connected to the bottom of the outer wall of the third gear 221. A ring groove 6 is opened at the front right end of the workbench 1. The slip ring 5 is slidably connected to the ring groove 6. When the third gear 221 rotates, the slip ring 5 slides in the ring groove 6, so that the rotation process of the third gear 221 is smoother. A control switch 11 is installed at the front left side of the workbench 1. The control switch 11 is electrically connected to the electric push rod 201 and the air pump 416 respectively, and is used to control the opening and closing of the electric push rod 201 and the air pump 416.

[0040] The top wall of the hollow box 203 is fixedly connected with a plurality of strips 8 at equal intervals. The plurality of strips 8 are connected by filter plates 7. When the device is working, heat energy is dissipated through the filter plates 7, and the filter plates 7 can isolate the falling dust.

[0041] A bracket 9 is fixedly connected to the bottom wall of the workbench 1 for supporting the device. A stabilizing block 10 is installed at the end of the bracket 9 to increase the stability of the device when it is placed.

[0042] Working principle: Turn on the electric push rod 201 to extend and retract, and push the movable rod 204 to slide in the fixed sleeve 206. At the same time, the sawtooth bar 207 installed on the movable rod 204 meshes with the first gear 209 to drive the first gear 209, the second rotating rod 208 and the first worm 214 to rotate. When the first worm 214 rotates, it meshes with the first worm wheel 215 to drive the first worm wheel 215 to rotate, and at the same time, the first connecting rod 213 and the first active bevel gear 212 are rotated. The meshing transmission of the first active bevel gear 212 and the first driven bevel gear 211 is connected to the third rotating rod 210, the first active pulley 217 and the fifth rotating rod 225 The first driven pulley 219 and the second driven pulley 309 are driven to rotate synchronously through the connection transmission of the first connecting belt 218. When the fifth rotating rod 225 rotates, the second gear 224 and the third gear 221 are meshed and transmitted, so that the two arc rods 223 and the placement station 222 rotate in opposite directions. When the third gear 221 rotates, the slip ring 5 slides in the ring groove 6, so that the rotation process of the third gear 221 is smoother, and the packaging bags that have been packaged on the placement station 222 are converted to the station, thereby achieving the effect of packaging station conversion, and packaging operations are performed at multiple stations, which is easier to meet the needs of use, and on the first driven pulley 21 When the first driving pulley 217 rotates, the second driving pulley 301 and the second driven pulley 309 are synchronously driven to rotate, and the second connecting belt 302 and the first tooth 308 are synchronously driven to rotate. The meshing transmission between the first tooth 308 and the second tooth 305 drives the third connecting belt 304, the third driving pulley 303 and the third driven pulley 307 to rotate synchronously. The meshing transmission between the second tooth 305 and the fifth gear 420 drives the second fixing rod 401 and the second driving bevel gear 421 to rotate. The meshing transmission between the second driving bevel gear 421 and the second driven bevel gear 402 drives the second driven bevel gear 402 to rotate. The second worm 403 rotates, and the special-shaped rod 406 rotates and moves through the meshing transmission of the second worm 403 and the second worm wheel 404, and at the same time, the second fixed ring 418, the second connecting rod 417, the first fixed ring 415 and the ninth rotating rod 409 are pulled, so that the right-angle plate 407 swings on the eighth rotating rod 408, and at the same time, the air pump 416 drives the air intake pipe 411, the connecting pipe 412 and the suction cup 413 to intake air, so that the swinging suction cup 413 is adsorbed onto the packaging bag that has completed the station conversion, and the equipment for the next processing step can be installed on the left side of the conversion device, so that the packaging bag is unloaded into another processing equipment, thereby achieving the effect of fully automatic unloading of the completed packaging bags.

[0043] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A conversion device for a packaging station of a vacuum packaging machine, comprising a workbench (1), characterized in that: A conversion mechanism (2) is provided on the top of the workbench (1), a connection mechanism (3) is provided on the bottom of the conversion mechanism (2), and a material discharge mechanism (4) is provided on the left side of the top of the workbench (1); The conversion mechanism (2) comprises a connecting frame (216), the outer wall of the workbench (1) is fixedly connected to the connecting frame (216) on all sides, the top of the connecting frame (216) is fixedly connected to a hollow box (203), the rear side of the inner wall of the hollow box (203) is fixedly connected to an electric push rod (201), the output end of the electric push rod (201) is fixedly connected to a movable rod (204), the front and rear ends of the right side of the inner wall of the hollow box (203) are fixedly connected to a first fixed rod (205), the left end of the first fixed rod (205) is fixedly connected to a fixed sleeve (206), the front end of the movable rod (204) passes through the fixed sleeve (206), the middle left part of the movable rod (204) is fixedly connected to a sawtooth bar (207), the middle part of the bottom end of the inner wall of the hollow box (203) is rotatably connected to a second rotating rod (208), and the top end of the second rotating rod (208) is fixedly connected to a first gear (209), the first gear (209) is meshingly connected with the sawtooth bar (207), the top wall of the first gear (209) is fixedly connected with a first worm (214), the middle and upper part of the right side of the inner wall of the hollow box (203) is rotatably connected with a first rotating rod (202), the left end of the first rotating rod (202) is fixedly connected with a first worm wheel (215), the first worm (214) is meshingly connected with the first worm wheel (215), the left side of the first worm wheel (215) is fixedly connected with a first connecting rod (213), the left end of the first connecting rod (213) is fixedly connected with a first driving bevel gear (212), a third rotating rod (210) is arranged on the left side of the middle part of the bottom end of the inner wall of the hollow box (203), the top end of the third rotating rod (210) is fixedly connected with a first driven bevel gear (211), and the first driven bevel gear (211) is meshingly connected with the first driving bevel gear (212).

2. The conversion device for a packaging station of a vacuum packaging machine according to claim 1, characterized in that: The end of the third rotating rod (210) passes through the hollow box (203) and is fixedly connected to the first driving pulley (217); the bottom wall of the first driving pulley (217) is fixedly connected to the fifth rotating rod (225); the rear side of the bottom wall of the hollow box (203) is rotatably connected to the fourth rotating rod (220); the bottom end of the fourth rotating rod (220) is fixedly connected to the first driven pulley (219); the first driving pulley (217) is connected to the first driven pulley (219) via a first connecting belt (218). The lower middle portion of the outer wall of the fifth rotating rod (225) is fixedly connected to a second gear (224), the front side of the second gear (224) is meshingly connected to a third gear (221), the end of the fourth rotating rod (220) is fixedly connected to a second driven pulley (309), the bottom walls of the second driven pulley (309) and the third gear (221) are both fixedly connected to an arc rod (223), and the ends of the two arc rods (223) both pass through the workbench (1) and are fixedly connected to a placement station (222).

3. The conversion device for a packaging station of a vacuum packaging machine according to claim 2, characterized in that: The connecting mechanism (3) comprises a second driving pulley (301), the middle part of the fifth rotating rod (225) is fixedly connected to the second driving pulley (301), the second driving pulley (301) is connected to the second driven pulley (309) via a second connecting belt (302), the outer wall of the second connecting belt (302) is fixedly connected to the first tooth (308), the front and rear sides of the middle part of the top wall of the workbench (1) are rotatably connected to the sixth rotating rod (306), the top end of the rear side of the sixth rotating rod (306) is fixedly connected to the third driven pulley (307), the top end of the front side of the sixth rotating rod (306) is fixedly connected to the third driving pulley (303), the third driven pulley (307) is connected to the third driving pulley (303) via a third connecting belt (304), the outer wall of the third connecting belt (304) is fixedly connected to the second tooth (305), and the second tooth (305) is meshingly connected to the first tooth (308).

4. The conversion device for a packaging station of a vacuum packaging machine according to claim 1, characterized in that: The unloading mechanism (4) comprises a tenth rotating rod (419), the tenth rotating rod (419) is rotatably connected to the left end of the rear side of the top wall of the workbench (1), the top of the tenth rotating rod (419) is fixedly connected to the fifth gear (420), the top wall of the fifth gear (420) is fixedly connected to the second fixed rod (401), the bottom end of the second fixed rod (401) is fixedly connected to the second active bevel gear (421), the left side of the inner wall of the workbench (1) is fixedly connected to a fixed plate (422), the right side of the fixed plate (422) is fixedly connected to the second worm (403), the right side of the second worm (403) is fixedly connected to the second driven bevel gear (402), the second driven bevel gear (402) is meshingly connected to the second active bevel gear (421), and the The rear side of the workbench (1) is rotatably connected to a seventh rotating rod (405), the front end of the seventh rotating rod (405) is fixedly connected to a second worm gear (404), the front side of the second worm gear (404) is fixedly connected to a special-shaped rod (406), the front end of the outer wall of the special-shaped rod (406) is installed with a second fixing ring (418), the left end of the workbench (1) is rotatably connected to an eighth rotating rod (408), the front end of the eighth rotating rod (408) is rotatably connected to a right-angle plate (407), the middle and lower part of the front side of the right-angle plate (407) is rotatably connected to a ninth rotating rod (409), the outer side of the ninth rotating rod (409) is installed with a first fixing ring (415), and the first fixing ring (415) is connected to the second fixing ring (418) via a second connecting rod (417).

5. The conversion device for a packaging station of a vacuum packaging machine according to claim 4, characterized in that: An air pump (416) is installed on the left side of the middle of the top of the workbench (1); the input end of the air pump (416) is connected to an air inlet pipe (411); the front side of the air inlet pipe (411) is connected to a connecting pipe (412); the ends of the air inlet pipe (411) and the connecting pipe (412) are both connected to a suction cup (413); the front and rear ends of the left side of the right-angle plate (407) are both fixedly connected to a pull ring rod (410); the air inlet pipe (411) and the connecting pipe (412) respectively penetrate the corresponding pull ring rod (410); and the output end of the air pump (416) is connected to an air outlet pipe (414).

6. The conversion device for a packaging station of a vacuum packaging machine according to claim 2, characterized in that: A slip ring (5) is fixedly connected to the bottom of the outer wall of the third gear (221); a ring groove (6) is provided at the front right end of the workbench (1); the slip ring (5) is slidably connected to the ring groove (6); a control switch (11) is installed at the front left end of the workbench (1); the control switch (11) is electrically connected to the electric push rod (201) and the air pump (416), respectively.

7. The conversion device for packaging stations of a vacuum packaging machine according to claim 1, characterized in that: A plurality of strip plates (8) are fixedly connected to the top wall of the hollow box (203) at equal intervals, and the plurality of strip plates (8) are connected via a filter plate (7).

8. The conversion device for packaging stations of a vacuum packaging machine according to claim 1, characterized in that: A bracket (9) is fixedly connected to the bottom wall of the workbench (1), and a stabilizing block (10) is installed at the end of the bracket (9).

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