CN111572870A - Food wholesale packaging machine with automatic punching and cutting mechanism - Google Patents

Abstract

The invention discloses a food wholesale packaging machine with an automatic punching and cutting mechanism, which drives a first screw rod and a second screw rod to rotate through an output shaft of a third motor, the first screw rod and the second screw rod respectively drive two connecting blocks to move oppositely so as to drive an upper hot pressing plate and a lower hot pressing plate to move oppositely, a punching head group on the upper hot pressing plate and a punching head group on the lower hot pressing plate punch a packaging bag, a transverse blade cuts the packaging bag, the upper hot pressing plate and the lower hot pressing plate simultaneously carry out hot pressing on the packaging bag so as to seal the packaging bag, the sealed packaging bag is conveyed out of a packaging frame, through the arrangement of the structure, the punching head group and the transverse blade of the automatic punching and cutting mechanism of the food wholesale packaging machine can move and adjust simultaneously to punch and cut the packaging bag, the structure is simple, the punching head group and the transverse blade are arranged on the upper hot pressing plate so as to facilitate cutting and punching as to carry out hot pressing on two, the package is heat sealed at the time of cutting.

Description

Food wholesale packaging machine with automatic punching and cutting mechanism

Technical Field

The invention relates to the technical field of food packaging production, in particular to a food wholesale packaging machine with an automatic punching and cutting mechanism.

Background

With the continuous development of social economy, the living standard of people is increasingly improved, the requirements on living quality are increasingly high, compared with the traditional eating habits of eating mountains and drinking water in mountains and waters, people begin to choose to taste various foods in different places, more and more instant bagged foods enter the visual field of people, and the requirements on the packaging of the foods are increasingly high. In the process of packaging food, packaging bags need to be used, in the process of packaging food, strip-shaped packaging bags need to be cut according to the specified length, and in some packaging bags, punching operation needs to be carried out.

Patent document (CN201911352310.9) discloses an automatic punching and cutting device for a food packaging machine, which can realize continuous punching operation on packaging bags through the matching design of a cylinder and a punch, greatly improve the efficiency of punching the packaging bags, meet different processing requirements of people on the packaging bags, and adjust punching positions to realize punching on packaging bags with different sizes; and cutting mechanism's cooperation design, the automatic cutout to the wrapping bag is realized to the cooperation of cutting knife one and cutting knife two, and this food packaging machinery can only pack solitary food in proper order, and packing efficiency is not high, and this food packaging machinery does not take the measures of sealing to the wrapping bag simultaneously, and the cutting and the unable synchronization that punches a hole to the wrapping bag go on.

Disclosure of Invention

The invention aims to provide a food wholesale packaging machine with an automatic punching and cutting mechanism, which solves the following technical problems: (1) the packaging bags on the packaging bag roller sequentially pass through the first guide roller and the second guide roller, food to be packaged is placed on the conveying belts along two sides of the raised line in pairs, the first motor is matched with the commutator to drive one of the driving rollers to rotate, the two driving rollers drive the conveying belts to convey the food to be packaged, meanwhile, the second motor output shaft drives the packaging bag roller to rotate, the packaging bag roller drives the first guide roller and the second guide roller to rotate through the gears and the chains, the packaging bags are conveyed, the food to be packaged is conveyed to the packaging bags on the packaging frame through the conveying belts, the packaging bags continue to convey the food, the first air cylinder piston rod pushes the longitudinal blade downwards, the longitudinal blade penetrates through the gaps of the adjacent limiting rods on the chains at two sides to cut the packaging belts, the packaging bags are cut into two pieces, and the problem that the food wholesale packaging machine in the prior art can only package single, the packaging efficiency is not high; (2) the food at two sides is respectively conveyed through two packaging bags, the piston rods of the second cylinders on the two fixing frames shrink, the two moving plates are matched with the two pull rods and the rotating plates to move in opposite directions, the two moving plates drive the two arc-shaped cylinders to move in opposite directions through the hot pressing blocks, the packaging bags are extruded into a cylindrical shape by the two arc-shaped cylinders, the two sides of the packaging bags extend to the two hot pressing blocks, and the two hot pressing blocks seal the packaging bags, so that the technical problem that the sealing effect of a food wholesale packaging machine in the prior art is poor is solved; (3) carry on through the wrapping bag and carry to between supreme hot pressboard and the lower hot pressboard, third motor output shaft drives first lead screw, the second lead screw rotates, first lead screw, the second lead screw drives two connecting blocks respectively and moves in opposite directions, and then drive the hot pressboard and move in opposite directions with lower hot pressboard, go up the hot pressboard and punch a hole the first group to punching a hole to the wrapping bag with the head of punching a hole on the hot pressboard down, horizontal blade is to carrying out the wrapping bag cutting, go up the hot pressboard simultaneously and carry out the hot pressing to the wrapping bag with lower hot pressboard, make the wrapping bag sealed, the wrapping bag after the sealed is carried out the packing frame, the problem of the unable synchronous go on of cutting and punching a hole of.

The purpose of the invention can be realized by the following technical scheme:

a food wholesale packaging machine with an automatic punching and cutting mechanism comprises a material conveying frame and a packaging frame, wherein the material conveying frame and the packaging frame are arranged adjacently, two driving rollers are arranged on the material conveying frame, the two driving rollers are in transmission connection through a conveying belt, and a convex strip is arranged on the conveying belt;

the packaging rack is provided with a packaging bag roller, a first guide roller and a second guide roller, the packaging bag roller, the first guide roller and the second guide roller are respectively provided with two gears, the packaging bag roller, the first guide roller and the second guide roller are connected with two chains through six gears in a transmission manner, a plurality of limiting rods are symmetrically arranged on opposite surfaces of the two chains, a packaging top shell is arranged on the packaging rack, a first air cylinder is arranged on the packaging top shell, and a longitudinal blade is arranged at the end part of a piston rod of the first air cylinder;

two fixing frames are arranged in the packaging top shell, two fixing strips are arranged on the fixing frames, two moving plates are arranged between the two fixing strips in a sliding mode, a positioning plate is arranged between the two fixing strips, a rotating plate is rotatably arranged on the positioning plate, two pull rods are rotatably connected to the rotating plate and are respectively rotatably connected with the two moving plates, hot pressing blocks are arranged on the lower surfaces of the moving plates, and two arc-shaped cylinders are symmetrically arranged at the bottoms of the two hot pressing blocks;

be provided with the cutting mechanism that punches a hole in the packing topshell, the cutting mechanism that punches a hole includes hot pressboard, lower hot pressboard, go up hot pressboard, lower hot pressboard sliding connection curb plate, go up hot pressboard, two connecting blocks are connected respectively to hot pressboard down, the connecting block slides and sets up in the set casing, the set casing internal rotation is provided with first lead screw, second lead screw, first lead screw rotates the connecting block that is located upper portion, the second lead screw rotates the connecting block that is located the lower part, it is provided with first group, the horizontal blade of punching a hole respectively to go up hot pressboard lower surface both sides.

Further, two drive rollers set up respectively in material carriage both sides, the commutator is installed to material carriage one side, and the first motor output shaft of commutator input shaft, one of them drive roller of commutator output shaft connection, the sand grip is installed in conveyer belt surface intermediate position.

Further, first guide roll, second guide roll set up in the coplanar, the wrapping bag roller sets up in first guide roll, second guide roll below, two gears on wrapping bag roller, first guide roll, the second guide roll all set up in being close to both sides position, and a plurality of gag lever posts are equidistant to be installed on the chain, are equipped with the space between a plurality of gag lever posts of two chain opposite faces, the wrapping bag roller is used for installing the wrapping bag, the output shaft of second motor is connected to wrapping bag roller one end, the second motor is installed in packing frame one side.

Furthermore, the packaging top shell is arranged above the first guide roller and the second guide roller, the first air cylinder piston rod penetrates through the top of the packaging top shell, and the longitudinal blade is arranged at the end part of the first air cylinder piston rod through the cutter holder.

Further, the fixing frame is fixed at the top of the inner wall of the packaging top shell, the two fixing strips are parallel to each other and fixed at the bottom of the fixing frame, a sliding rail is installed at the bottom of each fixing strip, two sliding blocks are installed on the upper surface of the movable plate, and the movable plate is connected with the sliding rails on the two fixing strips through the two sliding blocks in a sliding mode.

Furthermore, the rotating plate is provided with a shaft rod, the rotating plate is rotatably connected with the positioning plate through the shaft rod, the two pull rods are centrosymmetrically connected with the two sides of the rotating plate, the fixing frame is provided with two second cylinders, and the end parts of piston rods of the two second cylinders are connected with one of the moving plates.

Further, install the slide rail on the curb plate, go up hot pressboard, lower hot pressboard homonymy tip and all install the slider, go up hot pressboard, lower hot pressboard and all pass through slider sliding connection curb plate, the curb plate is installed outside packing top shell.

Further, first lead screw, second lead screw are vertically to be set up in the set casing, the set casing is fixed in packing top shell outer wall, first lead screw and second lead screw fixed connection, first lead screw is the same with second lead screw thread number and screw thread opposite direction, the third motor is installed at the set casing top, third motor output shaft runs through the set casing and connects first lead screw, and the slider is all installed to two connecting block both sides, install two slide rails in the set casing, the connecting block passes through two slide rails of two slider sliding connection.

Further, punch a hole first group and constitute for a plurality of punching heads that equidistant setting, set up on the hot pressboard down with punch a hole first group and horizontal blade assorted recess, packing top shell both sides all are provided with the opening.

Further, the food wholesale packaging machine works as follows:

the method comprises the following steps: the packaging bags on the packaging bag roller sequentially pass through the first guide roller and the second guide roller, the food to be packaged is placed on the conveying belts in pairs along two sides of the raised line, the first motor is matched with the commutator to drive one of the driving rollers to rotate, the two driving rollers drive the conveying belts to convey the food to be packaged, meanwhile, the second motor output shaft drives the packaging bag roller to rotate, the packaging bag roller drives the first guide roller and the second guide roller to rotate through the gears and the chains, and then the packaging bags are conveyed, so that the packaging bags on the packaging bag roller can be cut into two pieces by the food wholesale packaging machine of the automatic punching and cutting mechanism, the two pieces of food can be packaged simultaneously, and the packaging efficiency is high;

step two: when packaged food is conveyed to a packaging bag on a packaging frame by a conveying belt, the packaging bag continues to convey the food, a first air cylinder piston rod pushes a longitudinal blade downwards, the longitudinal blade penetrates through a gap between adjacent limiting rods on chains on two sides to cut the packaging bag into two pieces, the two packaging bags respectively convey the food on the two sides, second air cylinder piston rods on two fixing frames contract, two moving plates are matched with two pull rods and a rotating plate to move oppositely, the two moving plates drive two arc-shaped cylinders to move oppositely through hot pressing blocks, the two arc-shaped cylinders extrude the packaging bag into a cylindrical shape, two sides of the packaging bag extend to the two hot pressing blocks, and the two hot pressing blocks seal the packaging bag, so that the two arc-shaped cylinders of the food wholesale packaging machine of the automatic punching and cutting mechanism can automatically extrude the packaging bag into the cylindrical shape and seal the packaging bag while extruding, the sealing effect is better;

step three: the packaging bag is continuously conveyed between the upper hot pressing plate and the lower hot pressing plate, the output shaft of the third motor drives the first screw rod and the second screw rod to rotate, the first screw rod and the second screw rod respectively drive the two connecting blocks to move oppositely so as to drive the upper hot pressing plate and the lower hot pressing plate to move oppositely, the punching head groups on the upper hot pressing plate and the lower hot pressing plate punch the packaging bag, the transverse blade cuts the packaging bag, the upper hot pressing plate and the lower hot pressing plate hot press the packaging bag simultaneously, so that the packaging bag is sealed, the sealed packaging bag is conveyed out of the packaging frame, the punching head group and the transverse blade of the automatic punching cutting mechanism of the food wholesale packaging machine can move and adjust simultaneously to punch and cut the packaging bag, meanwhile, the structure is simple, the punching head group and the transverse blade are arranged on the upper hot pressing plate, so that the cutting and the punching can be convenient, and the two sides, the package is heat sealed at the time of cutting.

The invention has the beneficial effects that:

(1) the invention relates to a food wholesale packaging machine with an automatic punching and cutting mechanism, which comprises a first guide roller and a second guide roller, wherein packaging bags on a packaging bag roller sequentially pass through the first guide roller and the second guide roller, food to be packaged is placed on a conveying belt along two sides of a raised line in pairs, a first motor is matched with a commutator to drive one of driving rollers to rotate, the two driving rollers drive the conveying belt to convey the food to be packaged, an output shaft of a second motor drives the packaging bag roller to rotate, the packaging bag roller drives the first guide roller and the second guide roller to rotate through gears and chains, the packaging bags are conveyed, the food to be packaged is conveyed onto the packaging bags on a packaging frame by the conveying belt, the packaging bags continue to convey the food, a piston rod of a first air cylinder downwards pushes a longitudinal blade, the longitudinal blade passes through a gap between adjacent limiting rods on the chains at two sides to cut the, through the structure arrangement, the food wholesale packaging machine of the automatic punching and cutting mechanism can cut the packaging bags on the packaging bag roller into two pieces, so that two pieces of food can be packaged simultaneously, and the packaging efficiency is high;

(2) the two packaging bags respectively convey food on two sides, the piston rods of the second cylinders on the two fixing frames shrink, the two moving plates are matched with the two pull rods and move oppositely to the rotating plates, the two moving plates drive the two arc-shaped cylinders to move oppositely through the hot pressing blocks, the two arc-shaped cylinders extrude the packaging bags into a cylindrical shape, two sides of the packaging bags extend to the two hot pressing blocks, and the two hot pressing blocks seal the packaging bags;

(3) the packaging bag is continuously conveyed between the upper hot pressing plate and the lower hot pressing plate, the third motor output shaft drives the first screw rod and the second screw rod to rotate, the first screw rod and the second screw rod respectively drive the two connecting blocks to move oppositely so as to drive the upper hot pressing plate and the lower hot pressing plate to move oppositely, the punching head groups on the upper hot pressing plate and the lower hot pressing plate punch holes on the packaging bag, the transverse blade cuts the packaging bag, the upper hot pressing plate and the lower hot pressing plate hot press the packaging bag simultaneously, so that the packaging bag is sealed, the sealed packaging bag is conveyed out of the packaging frame, through the structure, the punching head groups and the transverse blade of the automatic punching cutting mechanism of the food wholesale packaging machine can move and adjust simultaneously to punch holes and cut the packaging bag, and simultaneously, the structure is simple, the punching head groups and the transverse blade are arranged on the upper hot pressing plate to facilitate cutting and punching of the two sides of the packaging bag, the package is heat sealed at the time of cutting.

Drawings

The invention will be further described with reference to the accompanying drawings.

Fig. 1 is a schematic structural view of a food wholesale packaging machine with an automatic punching and cutting mechanism according to the present invention;

FIG. 2 is a view of the internal structure of the top packaging shell of the present invention;

FIG. 3 is a side view of the upper platen of the present invention;

FIG. 4 is a schematic structural view of the punch cutting mechanism of the present invention;

FIG. 5 is an internal structural view of the fixing case of the present invention;

FIG. 6 is a block diagram of the arced barrel of the present invention;

FIG. 7 is a bottom view of the mount of the present invention;

FIG. 8 is a schematic view of the installation of the chain of the present invention;

FIG. 9 is an installation view of the drive roller of the present invention;

FIG. 10 is a view of the installation of the conveyor belt of the present invention

In the figure: 1. a material conveying frame; 2. a packaging frame; 3. a first motor; 4. a drive roller; 5. a conveyor belt; 6. a convex strip; 7. a second motor; 8. packaging bag rollers; 9. a first guide roller; 10. a second guide roller; 11. a chain; 12. a limiting rod; 13. packaging the top shell; 14. a first cylinder; 15. a longitudinal blade; 16. a fixed mount; 17. a fixing strip; 18. moving the plate; 19. hot pressing blocks; 20. an arc-shaped cylinder; 21. positioning a plate; 22. a rotating plate; 23. a pull rod; 24. a second cylinder; 25. a punching and cutting mechanism; 251. a side plate; 252. a stationary case; 253. an upper hot pressing plate; 254. a lower hot pressing plate; 255. a punching head group; 256. a transverse blade; 257. a first lead screw; 258. connecting blocks; 259. a second lead screw; 26. a third motor.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-10, the present invention is a food wholesale packaging machine with an automatic punching and cutting mechanism, including a material conveying frame 1 and a packaging frame 2, wherein the material conveying frame 1 and the packaging frame 2 are arranged adjacently, two driving rollers 4 are arranged on the material conveying frame 1, the two driving rollers 4 are in transmission connection through a conveying belt 5, and a protruding strip 6 is arranged on the conveying belt 5;

the packaging frame 2 is provided with a packaging bag roller 8, a first guide roller 9 and a second guide roller 10, the packaging bag roller 8, the first guide roller 9 and the second guide roller 10 are respectively provided with two gears, the packaging bag roller 8, the first guide roller 9 and the second guide roller 10 are connected with two chains 11 through six gear transmissions, a plurality of limiting rods 12 are symmetrically arranged on opposite surfaces of the two chains 11, the packaging frame 2 is provided with a packaging top shell 13, the packaging top shell 13 is provided with a first air cylinder 14, and the end part of a piston rod of the first air cylinder 14 is provided with a longitudinal blade 15;

two fixing frames 16 are arranged in the packaging top shell 13, two fixing strips 17 are arranged on the fixing frames 16, two moving plates 18 are arranged between the two fixing strips 17 in a sliding mode, a positioning plate 21 is arranged between the two fixing strips 17, a rotating plate 22 is arranged on the positioning plate 21 in a rotating mode, two pull rods 23 are connected to the rotating plate 22 in a rotating mode, the two pull rods 23 are respectively connected to the two moving plates 18 in a rotating mode, hot pressing blocks 19 are arranged on the lower surface of each moving plate 18, and two arc-shaped cylinders 20 are symmetrically arranged at the bottoms of;

be provided with cutting mechanism 25 that punches a hole in packing top shell 13, cutting mechanism 25 that punches a hole includes last hot pressboard 253, lower hot pressboard 254, go up hot pressboard 253, lower hot pressboard 254 sliding connection curb plate 251, go up hot pressboard 253, two connecting blocks 258 are connected respectively to lower hot pressboard 254, connecting block 258 slides and sets up in set casing 252, the internal rotation of set casing 252 is provided with first lead screw 257, second lead screw 259, first lead screw 257 rotates and connects the connecting block 258 that is located the upper portion, second lead screw 259 rotates and connects the connecting block 258 that is located the lower part, it is provided with punch a hole first group 255 respectively to go up hot pressboard 253 lower surface both sides, horizontal blade 256.

Specifically, two drive rollers 4 set up respectively in 1 both sides of material carriage, and the commutator is installed to 1 one side of material carriage, and the commutator input shaft is connected the 3 output shafts of first motor, and the commutator output shaft is connected one of them drive roller 4, and sand grip 6 is installed in 5 surface intermediate positions of conveyer belt. First guide roll 9, second guide roll 10 sets up in the coplanar, wrapping bag roller 8 sets up in first guide roll 9, second guide roll 10 below, wrapping bag roller 8, first guide roll 9, two gears on the second guide roll 10 all set up in being close to both sides position, a plurality of gag lever posts 12 equidistant install on chain 11, be equipped with the space between a plurality of gag lever posts 12 of two 11 opposite faces of chain, wrapping bag roller 8 is used for installing the wrapping bag, the output shaft of second motor 7 is connected to 8 one end of wrapping bag roller, second motor 7 is installed in 2 one sides of packing frame. The packaging top shell 13 is arranged above the first guide roller 9 and the second guide roller 10, a piston rod of the first air cylinder 14 penetrates through the top of the packaging top shell 13, and the longitudinal blade 15 is installed at the end part of the piston rod of the first air cylinder 14 through a cutter seat. The fixed frame 16 is fixed on the top of the inner wall of the package top shell 13, the two fixed strips 17 are fixed on the bottom of the fixed frame 16 in parallel, a sliding rail is installed at the bottom of the fixed strip 17, two sliding blocks are installed on the upper surface of the movable plate 18, and the movable plate 18 is connected with the sliding rails on the two fixed strips 17 in a sliding mode through the two sliding blocks. The rotating plate 22 is provided with a shaft rod, the rotating plate 22 is rotatably connected with the positioning plate 21 through the shaft rod, the two pull rods 23 are centrosymmetrically connected with two sides of the rotating plate 22, the fixed frame 16 is provided with two second cylinders 24, and the end parts of the piston rods of the two second cylinders 24 are connected with one of the moving plates 18. The side plates 251 are provided with slide rails, the ends of the upper hot pressing plate 253 and the lower hot pressing plate 254 on the same side are provided with slide blocks, the upper hot pressing plate 253 and the lower hot pressing plate 254 are connected with the side plates 251 in a sliding mode through the slide blocks, and the side plates 251 are arranged outside the packaging top shell 13. First lead screw 257, second lead screw 259 is vertically to set up in set casing 252, set casing 252 is fixed in the outer wall of packing top shell 13, first lead screw 257 and second lead screw 259 fixed connection, first lead screw 257 is the same and screw thread opposite direction with second lead screw 259 screw thread number, third motor 26 is installed at the set casing 252 top, third motor 26 output shaft runs through set casing 252 and connects first lead screw 257, the slider is all installed to two connecting block 258 both sides, install two slide rails in the set casing 252, connecting block 258 is through two slide rails of two slider sliding connection. The punching head group 255 is composed of a plurality of punching heads arranged at equal intervals, grooves matched with the punching head group 255 and the transverse blade 256 are formed in the lower hot pressing plate 254, and openings are formed in two sides of the packaging top shell 13.

Referring to fig. 1 to 10, the food wholesale packaging machine with an automatic punching and cutting mechanism of the present embodiment works as follows:

the method comprises the following steps: the packaging bags on the packaging bag roller 8 sequentially pass through the first guide roller 9 and the second guide roller 10, the food to be packaged is placed on the conveying belt 5 in pairs along two sides of the raised strip 6, the first motor 3 is matched with the commutator to drive one of the driving rollers 4 to rotate, the two driving rollers 4 drive the conveying belt 5 to convey the food to be packaged, meanwhile, the output shaft of the second motor 7 drives the packaging bag roller 8 to rotate, and the packaging bag roller 8 drives the first guide roller 9 and the second guide roller 10 to rotate through the gear and the chain 11 so as to convey the packaging bags;

step two: when packaged food is conveyed to a packaging bag on a packaging frame 2 by a conveying belt 5, the packaging bag continues to convey the food, a piston rod of a first air cylinder 14 pushes a longitudinal blade 15 downwards, the longitudinal blade 15 penetrates through a gap between adjacent limiting rods 12 on chains 11 on two sides to cut the packaging bag into two pieces, the two packaging bags respectively convey the food on the two sides, piston rods of second air cylinders 24 on two fixing frames 16 contract, two moving plates 18 move oppositely by matching with two pull rods 23 and a rotating plate 22, the two moving plates 18 drive two arc-shaped cylinders 20 to move oppositely through hot pressing blocks 19, the two arc-shaped cylinders 20 extrude the packaging bag into a cylindrical shape, two sides of the packaging bag extend to the two hot pressing blocks 19, and the two hot pressing blocks 19 seal the packaging bag;

step three: the packaging bag is continuously conveyed to a position between the upper hot pressing plate 253 and the lower hot pressing plate 254, an output shaft of the third motor 26 drives the first screw rod 257 and the second screw rod 259 to rotate, the first screw rod 257 and the second screw rod 259 respectively drive the two connecting blocks 258 to move oppositely, further the upper hot pressing plate 253 and the lower hot pressing plate 254 are driven to move oppositely, the packaging bag is punched by the punching head group 255 on the upper hot pressing plate 253 and the lower hot pressing plate 254, the packaging bag is cut by the transverse blade 256, the packaging bag is hot-pressed by the upper hot pressing plate 253 and the lower hot pressing plate 254, the packaging bag is sealed, and the sealed packaging bag is conveyed out of the packaging frame 2.

The foregoing is merely exemplary and illustrative of the present invention and various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the scope of the invention as defined in the following claims.

Claims (10)

1. The food wholesale packaging machine with the automatic punching and cutting mechanism is characterized by comprising a material conveying frame (1) and a packaging frame (2), wherein the material conveying frame (1) and the packaging frame (2) are arranged adjacently, two driving rollers (4) are arranged on the material conveying frame (1), the two driving rollers (4) are in transmission connection through a conveying belt (5), and a raised line (6) is arranged on the conveying belt (5);

the packaging machine is characterized in that a packaging bag roller (8), a first guide roller (9) and a second guide roller (10) are arranged on the packaging frame (2), two gears are respectively arranged on the packaging bag roller (8), the first guide roller (9) and the second guide roller (10), the packaging bag roller (8), the first guide roller (9) and the second guide roller (10) are connected with two chains (11) through six gear transmissions, a plurality of limiting rods (12) are symmetrically arranged on opposite surfaces of the two chains (11), a packaging top shell (13) is arranged on the packaging frame (2), a first air cylinder (14) is arranged on the packaging top shell (13), and a longitudinal blade (15) is arranged at the end part of a piston rod of the first air cylinder (14);

two fixing frames (16) are arranged in the packaging top shell (13), two fixing strips (17) are mounted on the fixing frames (16), two moving plates (18) are arranged between the two fixing strips (17) in a sliding mode, a positioning plate (21) is mounted between the two fixing strips (17), a rotating plate (22) is mounted on the positioning plate (21) in a rotating mode, two pull rods (23) are connected to the rotating plate (22) in a rotating mode, the two pull rods (23) are respectively connected with the two moving plates (18) in a rotating mode, hot pressing blocks (19) are mounted on the lower surface of each moving plate (18), and two arc-shaped cylinders (20) are symmetrically mounted at the bottoms of the two hot pressing;

be provided with cutting mechanism (25) punches a hole in packing top shell (13), cutting mechanism (25) punches a hole includes hot pressboard (253), hot pressboard (254) down, go up hot pressboard (253), hot pressboard (254) sliding connection curb plate (251) down, go up hot pressboard (253), hot pressboard (254) down and connect two connecting blocks (258) respectively, connecting block (258) slide to set up in set casing (252), set casing (252) internal rotation is provided with first lead screw (257), second lead screw (259), connecting block (258) that are located the upper portion are rotated in first lead screw (257), second lead screw (259) are rotated and are connected connecting block (258) that are located the lower part, it is provided with punch a head group (255), horizontal blade (256) respectively to go up hot pressboard (253) lower surface both sides.

2. The food wholesale packaging machine with the automatic punching and cutting mechanism is characterized in that two driving rollers (4) are respectively arranged on two sides of a material conveying frame (1), a commutator is arranged on one side of the material conveying frame (1), an input shaft of the commutator is connected with an output shaft of a first motor (3), the output shaft of the commutator is connected with one of the driving rollers (4), and the convex strip (6) is arranged in the middle of the outer surface of the conveying belt (5).

3. The food wholesale packaging machine with the automatic punching and cutting mechanism is characterized in that the first guide roller (9) and the second guide roller (10) are arranged on the same plane, the packaging bag roller (8) is arranged below the first guide roller (9) and the second guide roller (10), two gears on the packaging bag roller (8), the first guide roller (9) and the second guide roller (10) are arranged at positions close to two sides, a plurality of limiting rods (12) are arranged on the chain (11) at equal intervals, a gap is formed between the limiting rods (12) of opposite surfaces of the two chains (11), the packaging bag roller (8) is used for installing a packaging bag, one end of the packaging bag roller (8) is connected with an output shaft of the second motor (7), and the second motor (7) is arranged on one side of the packaging frame (2).

4. The food wholesale packaging machine with the automatic punching and cutting mechanism is characterized in that the packaging top shell (13) is arranged above the first guide roller (9) and the second guide roller (10), the piston rod of the first air cylinder (14) penetrates through the top of the packaging top shell (13), and the longitudinal blade (15) is mounted at the end of the piston rod of the first air cylinder (14) through a cutter seat.

5. The food wholesale packaging machine with the automatic punching and cutting mechanism is characterized in that the fixed frame (16) is fixed on the top of the inner wall of the top packaging shell (13), the two fixed strips (17) are fixed on the bottom of the fixed frame (16) in parallel, sliding rails are installed at the bottoms of the fixed strips (17), two sliding blocks are installed on the upper surface of the movable plate (18), and the movable plate (18) is connected with the sliding rails on the two fixed strips (17) in a sliding mode through the two sliding blocks.

6. The food wholesale packaging machine with the automatic punching and cutting mechanism is characterized in that a shaft rod is installed on the rotating plate (22), the rotating plate (22) is rotatably connected with the positioning plate (21) through the shaft rod, two pull rods (23) are centrosymmetrically connected with two sides of the rotating plate (22), two second air cylinders (24) are installed on the fixed frame (16), and the piston rods of the two second air cylinders (24) are connected with one moving plate (18) at the end part.

7. The food wholesale packaging machine with the automatic punching and cutting mechanism is characterized in that a sliding rail is mounted on the side plate (251), a sliding block is mounted at the end part of the upper hot pressing plate (253) and the end part of the lower hot pressing plate (254) on the same side, the upper hot pressing plate (253) and the lower hot pressing plate (254) are connected with the side plate (251) in a sliding mode through the sliding block, and the side plate (251) is mounted outside the packaging top shell (13).

8. The food wholesale packaging machine with the automatic punching and cutting mechanism is characterized in that the first lead screw (257) and the second lead screw (259) are longitudinally arranged in the fixed shell (252), the fixed shell (252) is fixed on the outer wall of the packaging top shell (13), the first lead screw (257) is fixedly connected with the second lead screw (259), the first lead screw (257) and the second lead screw (259) have the same thread number and the opposite thread directions, the top of the fixed shell (252) is provided with the third motor (26), an output shaft of the third motor (26) penetrates through the fixed shell (252) to be connected with the first lead screw (257), two sliding blocks are arranged on two sides of the two connecting blocks (258), two sliding rails are arranged in the fixed shell (252), and the connecting blocks (258) are slidably connected with the two sliding rails through the two sliding blocks.

9. The food wholesale packaging machine with the automatic punching and cutting mechanism is characterized in that the punching head group (255) consists of a plurality of punching heads which are arranged at equal intervals, grooves matched with the punching head group (255) and the transverse blades (256) are formed in the lower hot pressing plate (254), and openings are formed in two sides of the packaging top shell (13).

10. The food wholesale packaging machine with the automatic punching and cutting mechanism according to claim 1, wherein the food wholesale packaging machine works as follows:

the method comprises the following steps: the packaging bags on the packaging bag roller (8) sequentially pass through the first guide roller (9) and the second guide roller (10), two pairs of food to be packaged are placed on the conveying belt (5) along two sides of the raised line (6), the first motor (3) is matched with the commutator to drive one of the driving rollers (4) to rotate, the two driving rollers (4) drive the conveying belt (5) to convey the food to be packaged, meanwhile, the output shaft of the second motor (7) drives the packaging bag roller (8) to rotate, and the packaging bag roller (8) drives the first guide roller (9) and the second guide roller (10) to rotate through the gears and the chain (11) so as to convey the packaging bags;

step two: food to be packaged is conveyed to packaging bags on a packaging frame (2) by a conveying belt (5), the packaging bags continue to convey the food, a piston rod of a first air cylinder (14) pushes a longitudinal blade (15) downwards, the longitudinal blade (15) penetrates through gaps of adjacent limiting rods (12) on chains (11) on two sides to cut the packaging belts, the packaging bags are cut into two pieces, the two packaging bags respectively convey the food on the two sides, piston rods of second air cylinders (24) on two fixing frames (16) shrink, two movable plates (18) are matched with two pull rods (23) to move towards a rotating plate (22), the two moving plates (18) drive the two arc-shaped cylinders (20) to move in opposite directions through the hot pressing blocks (19), the packaging bags are extruded into a cylindrical shape by the two arc-shaped cylinders (20), the two sides of the packaging bags extend to the two hot pressing blocks (19), and the packaging bags are sealed by the two hot pressing blocks (19);

step three: the wrapping bag is carried on to between last hot pressboard (253) and lower hot pressboard (254), third motor (26) output shaft drives first lead screw (257), second lead screw (259) rotate, first lead screw (257), second lead screw (259) drive two connecting blocks (258) respectively and move in opposite directions, and then drive hot pressboard (253) and lower hot pressboard (254) and move in opposite directions, go up hot pressboard (253) and punch a hole first group (255) on lower hot pressboard (254) and punch a hole the wrapping bag, horizontal blade (256) are to carrying out the wrapping bag cutting, go up hot pressboard (253) and lower hot pressboard (254) simultaneously and carry out the hot pressing to the wrapping bag, make the wrapping bag sealed, the wrapping bag after the sealed is carried out packing frame (2).

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