CN117446274A - Automatic vacuum packaging machine - Google Patents

Abstract

The invention discloses an automatic vacuum packaging machine, which comprises a feeding conveying line, a packaging conveying line, a bag moving module, a bag opening and feeding module, a positioning fixture module and a vacuumizing and sealing module, wherein the automatic actions of product feeding conveying, packaging bag feeding conveying, bag opening, product bag feeding, vacuumizing, sealing and the like improve the working efficiency, and the positioning fixture module can ensure the position of a packaging bag and assist in realizing the actions of smoothly opening the bag, inserting a bag supporting rod group into the packaging bag and the like; the smoothing ruler of the smoothing component in the bag can smooth the bag opening, and the smoothing upper pressing strip and the smoothing lower pressing strip of the smoothing component outside the bag can smooth the outer surface of the bag opening, so that the sealing quality and the sealing quality during vacuumizing are improved.

Description

Automatic vacuum packaging machine

Technical Field

The invention relates to the technical field of bag packaging machinery, in particular to an automatic vacuum packaging machine.

Background

In a vacuum packaging machine, when a packaging bag is fed to a bag opening station through a suction nozzle, the position of the packaging bag is judged through an inductor, or the position of the packaging bag is limited through a positioning plate, and then the bag opening operation is executed, so that the packaging bag is simply positioned before the bag opening operation is executed, and is not positioned in the bag opening process, the packaging bag is easily shifted, the bag opening effect is influenced, and the smooth entering of a bag supporting rod is influenced;

in addition, after the product is filled into the packaging bag, the vacuumizing action and the sealing action of the bag opening are required to be carried out on the packaging bag, and when the vacuumizing and the sealing are carried out on the existing equipment, the bag opening is not well leveled or smoothed, so that the sealing effect is poor when the vacuumizing is carried out, and the sealing quality is poor.

Disclosure of Invention

The invention aims to provide an automatic vacuum packaging machine which realizes automatic packaging and improves working efficiency.

To achieve the purpose, the invention adopts the following technical scheme:

an automatic vacuum packaging machine comprising:

a feeding conveying line provided with a feeding station;

the packaging conveying line is provided with a bag feeding station, a bag opening station and a vacuum sealing station;

the bag carrying module is arranged at one side of the bag loading station of the packaging conveying line;

the bag opening and feeding module is arranged on one side of a bag opening station of the packaging conveying line and comprises a bag opening assembly, a bag supporting assembly and a pushing and feeding assembly, and the pushing and feeding assembly is connected with the feeding conveying line;

the positioning fixture module is arranged between the packaging conveying line and the bag opening feeding module and comprises a positioning fixture assembly, a connecting rod assembly, a synchronous driving assembly, a positioning driving piece and a base;

wherein the connecting rod assembly is of a multi-connecting rod structure; connecting rod assemblies are arranged at two ends of the base, and the two connecting rod assemblies are respectively connected with a positioning clamp assembly; a synchronous driving assembly is arranged between the two connecting rod assemblies; the positioning driving piece drives the connecting rod assembly to move;

the vacuumizing sealing module is arranged on one side of the vacuum sealing station of the packaging conveying line and comprises a vacuumizing assembly, a sealing assembly and a sealing assembly;

the vacuum pumping assembly comprises a vacuum tube, and the vacuum tube can move along the Y-axis direction; the sealing assembly comprises an upper sealing strip and a lower sealing strip which are oppositely arranged, and the upper sealing strip and the lower sealing strip can both perform lifting movement; the seal comprises an upper seal strip and a lower seal strip which are oppositely arranged, and the upper seal strip and the lower seal strip can both conduct lifting movement.

In some embodiments, the bag handling module comprises a handling suction nozzle, a handling Z-axis feeding mechanism and a handling X-axis feeding mechanism which are connected in sequence; the bag carrying module further comprises a bag bin.

In some embodiments, the bag opening assembly comprises a bag opening upper suction nozzle and a bag opening lower suction nozzle which are oppositely arranged, wherein the bag opening upper suction nozzle is connected with a bag opening Z-axis upper cylinder, and the bag opening lower suction nozzle is connected with a bag opening Z-axis lower cylinder;

the bag supporting assembly comprises a first transverse plate and a first vertical plate; the first transverse plate is in driving connection with the first vertical frame through a Y-axis feeding mechanism of the rod group;

the two first vertical plates are symmetrically arranged at two ends of the first transverse plate, and the two first vertical plates realize synchronous relative movement along the X-axis direction through the X-axis feeding mechanism of the rod group;

the two first vertical plates are provided with a bag supporting rod group, the bag supporting rod group comprises an upper supporting rod and a lower supporting rod, the lower supporting rod is fixedly connected to the lower end of the first vertical plate, the upper supporting rod is connected to the upper end of the first vertical plate, and the upper supporting rod realizes movement in the Z-axis direction through a supporting rod Z-axis feeding mechanism;

the pushing and feeding assembly comprises a pushing plate, and the pushing plate is in driving connection with the pushing X-axis feeding mechanism.

In some embodiments, the positioning fixture assembly comprises a positioning finger cylinder and a positioning clamp block, the positioning clamp block is in driving connection with the positioning finger cylinder;

the connecting rod assembly comprises a first connecting rod, a second connecting rod, a third connecting rod and a fourth connecting rod which are sequentially hinged; the upper end of the first connecting rod is connected with the positioning clamp assembly; the third connecting rod is connected with the base.

In some embodiments, the synchronous drive assembly includes a first linkage rod, a second linkage rod, a first gear, a second gear, a third linkage rod, and a fourth linkage rod connected in sequence;

one end of the first linkage rod is hinged with the middle part of the first connecting rod of one connecting rod assembly, and the other end of the first linkage rod is hinged with one end of the second linkage rod; the other end of the second linkage rod is linked with the first gear; the first gear is meshed with the second gear; the second gear is linked with one end of the third linkage rod; the other end of the third linkage rod is hinged with one end of the fourth linkage rod; the other end of the fourth linkage rod is hinged with the middle part of the first connecting rod of the other connecting rod assembly;

the middle part of the second linkage rod is connected with the edge part of the first gear;

one end of the third linkage rod is connected with the central shaft of the second gear, and the middle part of the third linkage rod is connected with the edge part of the second gear.

In some embodiments, the vacuum sealing module further comprises a bag interior smoothing assembly, wherein the bag interior smoothing assembly comprises two smoothing rules, and the two smoothing rules are arranged relatively, and can move relatively along the X-axis direction and move along the Y-axis direction.

In some embodiments, the in-bag smoothing assembly further comprises a smoothing X-axis feed mechanism comprising a first synchronization belt, a first smoothing drive cylinder, a first synchronization connection block, and a second synchronization connection block;

one section of the first synchronous belt is connected with a first synchronous connecting block, and the first synchronous connecting block is connected with one smoothing ruler;

the other section of the first synchronous belt is connected with a second synchronous connecting block, and the second synchronous connecting block is connected with the other smoothing ruler;

the output end of the first smoothing driving cylinder is connected with the first synchronous connecting block.

In some embodiments, the vacuum sealing module further comprises two oppositely disposed out-of-bag smoothing assemblies, the two out-of-bag smoothing assemblies being movable along the X-axis direction and along the Y-axis direction;

the bag outer smoothing assembly comprises a smoothing upper pressing bar and a smoothing lower pressing bar which are oppositely arranged.

In some embodiments, the device further comprises a synchronous moving clamp module;

the synchronous moving clamp module is arranged on one side of the packaging conveying line far away from the bag feeding module;

the synchronous moving clamp module comprises a synchronous clamp assembly, a relative motion assembly, a synchronous moving Z-axis feeding mechanism, a synchronous moving Y-axis feeding mechanism and a synchronous moving X-axis feeding mechanism which are connected in sequence;

the synchronous clamp assemblies are oppositely arranged, and the relative movement assembly drives the two synchronous clamp assemblies to perform relative movement.

In some embodiments, the relative motion assembly includes a rotating lever, a first swing lever, a second swing lever, a first X-axis moving plate, a second X-axis moving plate, a relative motion driving cylinder, and a base plate;

the first X-axis moving plate and the second X-axis moving plate are movably arranged on two sides of the substrate;

the first X-axis moving plate and the second X-axis moving plate are both provided with synchronous clamp assemblies;

the rotating rod can be rotatably connected to the base plate;

one end of the rotating rod is hinged with one end of the first swinging rod, and the other end of the first swinging rod is hinged with the first X-axis moving plate;

the other end of the rotating rod is hinged with one end of a second swinging rod, and the other end of the second swinging rod is hinged with a second X-axis moving plate;

one end of the relative motion driving cylinder is connected with the base plate, and the other end of the relative motion driving cylinder is connected with the first X-axis moving plate.

The invention has the beneficial effects that: the positioning fixture module can ensure the position of the packaging bag, and the actions of smoothly opening the packaging bag, inserting the bag supporting rod group into the packaging bag and the like are realized in an auxiliary manner;

the smoothing ruler of the bag internal smoothing assembly can smooth the bag opening, and the smoothing upper pressing strip and the smoothing lower pressing strip of the bag external smoothing assembly can smooth the outer surface of the bag opening, so that the sealing quality and the sealing quality during vacuumizing are improved;

the synchronous moving clamp module can always clamp the edge of the packaging bag in the process of feeding the packaging bag which is positioned at the bag opening station and filled with the product to the vacuum sealing station, so that the relative position of the packaging bag is limited, the opening state of the bag opening of the packaging bag is maintained, and the bag opening of the packaging bag can be leveled.

Drawings

Fig. 1 is a top view of an automatic vacuum packing machine of the present invention;

FIG. 2 is a block diagram of an automatic vacuum packing machine according to the present invention;

FIG. 3 is a block diagram of a bag handling module according to the present invention;

fig. 4 is a top view of a part of the structure of the packing machine of the present invention;

FIG. 5 is an isometric view of FIG. 4;

FIG. 6 is a block diagram of the bag opening and feeding module and the positioning fixture module of the present invention;

FIG. 7 is a block diagram of the bag opening and feeding module of the present invention;

FIG. 8 is a block diagram of a bag opening assembly of the bag opening feed module of the present invention;

FIG. 9 is another view of the bag opening and feeding module of the present invention;

FIG. 10 is a block diagram of a push feed assembly of the bag opening feed module of the present invention;

FIG. 11 is a front view of the positioning fixture module of the present invention;

FIG. 12 is a rear view of the positioning fixture module of the present invention;

FIGS. 13-16 are flowcharts illustrating operations of the positioning jig module according to the present invention;

fig. 17 is a top view showing a part of the structure of a packing machine of the present invention;

FIG. 18 is an isometric view of FIG. 17;

FIG. 19 is a block diagram of a vacuum sealing module according to the present invention;

FIG. 20 is another view of the vacuum sealing module of the present invention;

FIG. 21 is a block diagram of the evacuation assembly, the in-bag smoothing assembly, and the out-of-bag smoothing assembly of the present invention;

FIG. 22 is another view of the view block diagram of FIG. 21;

FIG. 23 is a block diagram of the evacuation assembly and in-bag smoothing assembly of the present invention;

FIG. 24 is another view of the evacuation assembly and in-bag smoothing assembly of the present invention;

FIG. 25 is a block diagram of an out-of-bag smoothing assembly of the present invention;

FIG. 26 is a schematic diagram of the action of the smoothing ruler of the out-of-bag smoothing assembly of the present invention;

FIG. 27 is a schematic illustration of the action of the upper and lower smoothing beads of the out-of-bag smoothing assembly of the present invention;

FIG. 28 is a block diagram of a synchronous moving clamp module according to the present invention;

FIG. 29 is a block diagram of a relative motion assembly of the synchronous moving clamp module of the present invention;

FIG. 30 is another view of the relative motion assembly of the synchronous moving clamp module of the present invention;

FIG. 31 is a flow chart of the operation of the synchronous moving gripper unit of the present invention for simultaneously gripping a moving bag and flattening the mouth of the bag at the vacuum sealing station;

wherein: 100-product; 200-packaging bags; 1-a feed conveyor line; 1 a-a feeding station; 1 b-entering a bag pushing station; 2-a packaging conveying line; 2a, a bag loading station; 2 b-a bag opening station; 2 c-a vacuum sealing station;

3-a bag carrying module; 31-carrying suction nozzles; 32-carrying an X-axis feeding mechanism; 33-carrying a Z-axis feeding mechanism; 30-a bag bin;

4-a bag opening feeding module; 41-pushing the feeding component; 411-push plate; 412-pushing the X-axis feed mechanism; 42-a bag opening assembly; 421-opening a bag and arranging a suction nozzle; 422-opening a lower suction nozzle; 423-opening a Z-axis upper cylinder; 424-opening a Z-axis lower cylinder; a 43-bag-opening assembly; 431-bag-stay bar group; 4311-upper brace; 4312-lower stay;

432-a strut Z-axis feed mechanism; 433—a lever set X-axis feed mechanism; 4331-a first screw; 434—a lever set Y-axis feed mechanism; 435-a first cross plate; 436-first riser; 44-a first stand;

5-positioning a clamp module; 51-a positioning jig assembly; 511-positioning a finger cylinder; 512-positioning clamping blocks; 53-a connecting rod assembly; 531-first link; 532-a second link; 533-third link; 534-fourth link; 54-synchronous drive assembly; 541-a first linkage bar; 542-second linkage rod; 543-first gear; 544-a second gear; 545-third linkage rod; 546-fourth linkage rod; 55-base; 56-positioning the driving member;

6-synchronously moving the clamp module; 61-synchronizing the clamp assembly; 611-synchronizing finger cylinders; 612-synchronizing clamping blocks; 62—a relative motion assembly; 621-rotating the rod; 622—a first swing lever; 623-a second swing lever; 624-a first X-axis moving plate; 625-a second X-axis moving plate; 626-relative motion drive cylinder; 627-substrate; 63-synchronously moving the X-axis feeding mechanism; 64-synchronously moving the Y-axis feeding mechanism; the method comprises the steps of carrying out a first treatment on the surface of the 65-synchronously moving the Z-axis feeding mechanism;

7-vacuumizing and sealing the module; 71-vacuumizing assembly; 711-vacuum tube; 712-vacuum Y-axis cylinder; 72-in-bag smoothing assembly; 721-pacifying rule; 722-smoothing the X-axis feeding mechanism; 7221-a first timing belt; 7222-first smoothing drive cylinder; 7223-first synchronization connection block; 7224-a second synchronized connection block; 73-an out-of-bag smoothing assembly; 731-smoothing the upper batten; 732-smoothing the lower bead; 733-a second smooth driving cylinder; 74-vacuumizing a Y-axis moving plate; 75-vacuumizing a Y-axis feeding mechanism; 76-a seal assembly; 761-applying a sealing strip; 762-lower sealing strips; 763-upper seal cylinder; 764-lower seal cylinder; 77-a closure assembly; 771-upper sealing strip; 772-lower sealing strip; 773-upper seal cylinder; 774-lower seal cylinder.

Detailed Description

The invention is described in further detail below with reference to the accompanying drawings.

Referring to fig. 1 and 2, an automatic vacuum packing machine includes:

the feeding conveyor line 1 is provided with a feeding station 1a for conveying or feeding the product 100, and after the product 100 is placed in the feeding station 1a, the feeding conveyor line 1 conveys or feeds the product 100 to a bag-in pushing station 1b; wherein, the feeding conveying line 1 can be a structure of matching a belt with a motor;

the packaging conveying line 2 is provided with a bag feeding station 2a, a bag opening station 2b and a vacuum sealing station 2c and is used for conveying or feeding packaging bags 200, and the packaging bags 200 positioned at the bag feeding station 2a are sequentially conveyed or fed to the bag opening station 2b and the vacuum sealing station 2c; wherein, the packaging conveying line 2 can be a structure of matching a belt with a motor;

a bag carrying module 3 arranged at one side of the upper bag station 2a of the packaging conveying line 2 and used for carrying the packaging bag 200 to the upper bag station 2a of the packaging conveying line 2;

the bag opening and feeding module 4 is arranged at one side of the bag opening station 2b of the packaging conveying line 2 and is used for executing the actions of opening, bag opening, product pushing and the like of the packaging bag 200;

the positioning fixture module 5 is arranged between the packaging conveying line 2 and the bag opening and feeding module 4, and is used for clamping and positioning the packaging bag 200 when the bag opening and feeding module 4 performs actions such as bag opening, pushing of the product 100 and the like;

the vacuumizing and sealing module 7 is arranged on one side of the vacuum sealing station 2c of the packaging conveying line 2 and is used for performing sealing vacuumizing and sealing actions of the packaging bag 200;

and the synchronous moving clamp module 6 can always clamp the edge of the packaging bag 200 in the process of feeding the packaging bag 200 which is positioned at the bag opening station 2b and filled with the product 100 to the vacuum sealing station 2c, thereby limiting the relative position of the packaging bag 200, maintaining the opening state of the bag opening of the packaging bag 200 and leveling the bag opening of the packaging bag 200;

therefore, the packaging machine can realize automatic actions such as product feeding and conveying, packaging bag feeding and conveying, bag opening, product bag entering, vacuumizing, sealing and the like, and improves the working efficiency.

Referring to fig. 3, the structure and principle of the bag carrying module 3 are described:

the bag carrying module 3 comprises a carrying suction nozzle 31, a carrying Z-axis feeding mechanism 33 and a carrying X-axis feeding mechanism 32 which are connected in sequence; the transporting Z-axis feeding mechanism 33 and the transporting X-axis feeding mechanism 32 may be linear motors, cylinders, or the like;

the bag carrying module 3 further comprises a bag bin 30, wherein the bag bin 30 is used for stacking the packaging bags 200;

the carrying suction nozzle 31 carries the package 200 in the bag magazine 30 to the bag loading station 2a of the package conveyance line 2.

Referring to fig. 4 to 10, the structure and principle of the bag opening and feeding module 4 are described:

the bag opening and feeding module 4 comprises a bag opening assembly 42, a bag opening assembly 43 and a pushing and feeding assembly 41;

referring to fig. 7, the bag opening assembly 42 includes a bag opening upper suction nozzle 421 and a bag opening lower suction nozzle 422 which are disposed opposite to each other, the bag opening upper suction nozzle 421 is connected to a bag opening Z-axis upper cylinder 423, and the bag opening lower suction nozzle 422 is connected to a bag opening Z-axis lower cylinder 424; thus, the upper pouch suction nozzle 421 and the lower pouch suction nozzle 422 can move up and down, the upper pouch suction nozzle 421 can suck the upper surface of the package bag, and the lower pouch suction nozzle 422 can suck the lower surface of the package bag and then move away from each other, thereby opening the package bag 200.

Referring to fig. 8 and 9, the bag-opening assembly 43 includes a first cross plate 435 and a first riser 436;

the first transverse plate 435 is connected with the first stand 44 through a rod group Y-axis feeding mechanism 434 and moves along the Y-axis, wherein the rod group Y-axis feeding mechanism 434 may be a cylinder or an electric cylinder structure, and a guide rod may be disposed between the first transverse plate 435 and the first stand 44;

the two first risers 436 are symmetrically arranged at two ends of the first transverse plate 435, and the two first risers 436 realize synchronous relative movement along the X-axis direction through the rod group X-axis feeding mechanism 433, namely mutual approaching and moving away, wherein the rod group X-axis feeding mechanism 433 comprises a first screw rod 4331, a motor, a belt and other matching structures, the first screw rod 4331 is provided with two sections of threads which are respectively arranged at the left end and the right end, the thread directions of the two sections of threads are opposite, the two sections of threads are respectively provided with a nut block, the two thread blocks are respectively connected with the two first risers 436, and the motor drives the first screw rod 4331 to rotate through the belt;

the two first risers 436 are both provided with a bag-supporting rod group 431, the bag-supporting rod group 431 comprises an upper supporting rod 4311 and a lower supporting rod 4312, the lower supporting rod 4312 is fixedly connected to the lower end of the first risers 436, the upper supporting rod 4311 is movably connected to the upper end of the first risers 436, the upper supporting rod 4311 can move in the Z-axis direction through a supporting rod Z-axis feeding mechanism 432, namely, the upper supporting rod 4311 can move up and down relative to the lower supporting rod 4312, wherein the supporting rod Z-axis feeding mechanism 432 can be of a belt and motor structure, the motor drives the belt to rotate, the belt is connected with a sliding block, the sliding block is connected with the upper supporting rod 4311, and the arrangement of the guide rail and the sliding block is beneficial to improving the accuracy and smoothness of the movement, and of the supporting rod Z-axis feeding mechanism 432 can also adopt a cylinder or an electric cylinder or a screw motor and other structures.

Thus, the bag-supporting rod group 431 moves in the X-axis direction by the rod group X-axis feeding mechanism 433, moves closer to and away from each other in the Y-axis direction by the rod group Y-axis feeding mechanism 434, and moves up and down the upper support rod 4311 relative to the lower support rod 4312 in the Z-axis direction by the support rod Z-axis feeding mechanism 432, thereby inserting the bag-supporting rod group 431 into the mouth of the package bag 200, opening the mouth of the package bag 200, maintaining the mouth shape or state of the package bag 200, and pushing the product 100 into the package bag 200 smoothly.

Referring to fig. 10, the pushing feeding assembly 41 includes a pushing plate 411 and a pushing X-axis feeding mechanism 412, the pushing plate 411 pushes the product 100 located at the bag pushing station 1b into the packaging bag 200 through the pushing X-axis feeding mechanism 412, where the pushing X-axis feeding mechanism 412 may be a belt and motor structure, the motor drives the belt to rotate, the belt is connected with a slider, the slider is connected with the pushing plate 411, and the arrangement of the guide rail and the slider is beneficial to improving the accuracy and smoothness of the movement, and of course, the pushing X-axis feeding mechanism 412 may also adopt a cylinder or an electric cylinder or a screw rod and motor matching structure.

Referring to fig. 11 and 12, the structure and principle of the positioning jig module 5 are described:

the positioning fixture module 5 comprises a positioning fixture assembly 51, a connecting rod assembly 53, a synchronous driving assembly 54, a positioning driving piece 56 and a base 55;

the connecting rod assembly 53 is of a multi-connecting rod structure;

the two ends of the base 55 are respectively provided with a connecting rod assembly 53, and the two connecting rod assemblies 53 are respectively connected with a positioning clamp assembly 51, which can be understood that the positioning clamp assembly 51 and the connecting rod assembly 53 are symmetrically arranged at the two ends of the base 55;

a synchronous driving component 54 is arranged between the two connecting rod components 53 to realize synchronous symmetrical movement;

the positioning driving piece 56 drives the connecting rod assembly 53 to move.

Therefore, when the packaging bag 200 is fed to the bag opening station 2b of the packaging conveying line 2, the two positioning clamp assemblies 51 are driven to move relatively close to each other and move upwards through the cooperation of the connecting rod assemblies 53 and the synchronous driving assemblies 54, then the edges of the packaging bag 200 are clamped, and then the positioning clamp assemblies 51 continue to move relatively close to each other and move upwards through cooperation with the bag opening feeding module 4, so that the bag opening action of the packaging bag 200 is assisted. Therefore, the positioning fixture module 5 can fix the position of the packaging bag 200 and assist in bag opening, thereby improving the success rate of bag opening.

The positioning fixture assembly 51 comprises a positioning finger cylinder 511 and a positioning clamping block 512, wherein the positioning clamping block 512 is in driving connection with the positioning finger cylinder 511, and the positioning finger cylinder 511 drives the two positioning clamping blocks 512 to realize clamping and loosening actions.

The link assembly 53 includes a first link 531, a second link 532, a third link 533, and a fourth link 534, where the first link 531, the second link 532, the third link 533, and the fourth link 534 are sequentially hinged to form a parallelogram four-link structure, and the two positioning clamp assemblies 51 can be driven to approach each other and move upwards by an upward rotation manner;

the upper end of the first link 531 is connected to the positioning jig assembly 51; the third link 533 is connected to the base 55.

The second link 532 is the same length as the fourth link 534; the first link 531 and the third link 533 are disposed vertically. Thereby, the first link 531 can be kept vertical while the link assembly 53 is rotated, so that the angle of the positioning jig assembly 51, i.e., the horizontally disposed state, can be maintained.

The synchronous drive assembly 54 includes a first linkage rod 541, a second linkage rod 542, a first gear 543, a second gear 544, a third linkage rod 545, and a fourth linkage rod 546 connected in sequence;

one end of the first linkage rod 541 is hinged to a middle portion of the first link 531 of one of the link assemblies 53, and the other end of the first linkage rod 541 is hinged to one end of the second linkage rod 542; the other end of the second link 542 is linked with the first gear 543; the first gear 543 meshes with the second gear 544; the second gear 544 is coupled to one end of the third linkage rod 545; the other end of the third linkage rod 545 is hinged with one end of a fourth linkage rod 546; the other end of the fourth link 546 is hinged to the middle portion of the first link 531 of the other link assembly 53.

Wherein the other end of the second linkage rod 542 is connected with the central shaft of the first gear 543, and the middle part of the second linkage rod 542 can be connected with the edge part of the first gear 543 by a pin or a screw, etc., so as to realize linkage;

one end of the third linkage rod 545 is connected to a central shaft of the second gear 544, and a middle portion of the third linkage rod 545 may be connected to an edge portion of the second gear 544 by a pin, a screw, or the like, thereby achieving linkage.

The first linkage rod 541 and the fourth linkage rod 546 have the same length, the second linkage rod 542 and the third linkage rod 545 have the same length, and the first gear 543 and the second gear 544 are identical, so that the manufacturing is facilitated, and the two positioning jig assemblies 51 are driven to perform synchronous symmetrical movement.

The output end of the positioning drive 56 is hinged to the end of the first linkage rod 541 near the second linkage rod 542.

The positioning driving member 56 may be an air cylinder or an electric cylinder, and when the positioning driving member 56 performs telescopic motion, the first linkage rod 541 is driven to move, so as to drive the connecting rod assembly 53 to rotate, and further drive one of the positioning fixture assemblies 51 to move, and meanwhile, the synchronous driving assembly 54 can synchronously drive the other positioning fixture assembly 51 to move simultaneously, so that synchronous symmetrical motion of the two positioning fixture assemblies 51 is realized.

Working principle: referring to fig. 13 to 16, when a packing bag is fed to a bag opening station 2b through a packing conveyor line 2, two positioning jig assemblies 51 clamp both edges of the packing bag 200, then an upper bag opening suction nozzle 421 and a lower bag opening suction nozzle 422 move close to the packing bag 200 and suck the upper and lower surfaces of the packing bag 200 respectively, then the upper bag opening suction nozzle 421 moves upward to perform a bag opening action, at this time, the lower bag opening suction nozzle 422 can move slightly downward or remain motionless, and at the same time, the two positioning jig assemblies 51 move close to each other and upward to realize the bag opening process, the positioning jig assemblies 5 clamp the packing bag 200 all the time, prevent the packing bag 200 from shifting, falling and the like, ensure smooth bag opening, and assist in forming a certain bag opening shape, facilitate the smooth insertion of the bag opening rod groups 431 into the packing bag 200, then the two bag opening rod groups 431 insert into the packing bag, the two bag opening rod groups 431 move away from each other, and the upper bag opening rod 4311 move upward, so that the bag opening of the packing bag 200 is approximately rectangular, and finally, the feeding assembly 41 pushes the product into the packing bag 200, and realizes automatic bag opening and bag opening action;

therefore, the positioning fixture module 5 always clamps the edge of the packaging bag 200 before opening the packaging bag, during the opening operation, the bag opening operation and the product filling operation, so as to ensure the correct position of the packaging bag 200, realize the smooth opening and the insertion of the bag opening rod group 431 into the packaging bag, and the like, achieve the purpose of assisting the smooth completion of the above operations, and improve the opening effect and quality.

Referring to fig. 17 to 25, the structure and principle of the vacuum sealing module 7 are described:

the vacuumizing sealing module 7 comprises a vacuumizing assembly 71, a bag internal smoothing assembly 72, a sealing assembly 76 and a sealing assembly 77;

the vacuum pumping assembly 71 includes a vacuum pipe 711, the vacuum pipe 711 being connected to a vacuum pump, the vacuum pipe 711 being movable in the Y-axis direction;

the in-bag leveling assembly 72 comprises leveling feet 721, wherein two leveling feet 721 are oppositely arranged, and the two leveling feet 721 can perform relative movement along the X-axis direction and move along the Y-axis direction;

the sealing assembly 76 comprises an upper sealing strip 761 and a lower sealing strip 762 which are oppositely arranged, and the upper sealing strip 761 and the lower sealing strip 762 can perform lifting movement;

the seal comprises an upper seal strip 771 and a lower seal strip 772 which are oppositely arranged, and the upper seal strip 771 and the lower seal strip 772 can both perform lifting movement.

Thus, the product 100 is packed into the packaging bag 200, and is fed to the vacuum sealing station 2c under the action of the packaging conveying line 2, the vacuum tube 711 and the smoothing ruler 721 move along the Y-axis direction simultaneously or sequentially and are inserted into the packaging bag 200, then, referring to fig. 26, the two smoothing rulers 721 move relatively far away along the X-axis direction to smooth the mouth of the packaging bag 200, then, the upper sealing strip 761 and the lower sealing strip 762 move relatively up and down, namely move relatively close to each other to clamp the mouth of the packaging bag 200, then, the vacuum pump starts vacuumizing, after reaching a set vacuum value, the vacuum tube 711 withdraws from the packaging bag 200, then, the upper sealing strip 771 and the lower sealing strip 772 move relatively up and down, namely move relatively close to each other to clamp and seal the mouth of the packaging bag 200, thus, the vacuumizing sealing action is completed, automatic vacuumizing and sealing are realized, and the working efficiency is improved, wherein the bag smoothing assembly 72 can smooth the mouth, which is beneficial to improving the sealing and sealing quality, and improving the packaging quality.

Referring to fig. 23 and 24, the in-bag smoothing assembly 72 further includes a smoothing X-axis feed mechanism 722, the smoothing X-axis feed mechanism 722 including a first synchronization belt 7221, a first smoothing drive cylinder 7222, a first synchronization connection block 7223, and a second synchronization connection block 7224;

the first synchronous belt 7221 is wound on the two rollers, one section of the first synchronous belt 7221 is connected with the first synchronous connecting block 7223, and the first synchronous connecting block 7223 is connected with one of the smoothing rulers 721;

the other section of the first timing belt 7221 is connected to a second timing connection block 7224, and the second timing connection block 7224 is connected to another leveling rod 721;

the output end of the first smooth driving cylinder 7222 is connected to the first synchronous connection block 7223.

Thus, the first timing belt 7221 allows the two leveling rods 721 to perform a synchronous relative motion in the X-axis direction.

Referring to fig. 21, 22 and 25, the vacuum sealing module 7 further includes two oppositely disposed bag-outside smoothing assemblies 73, and the two bag-outside smoothing assemblies 73 can move along the X-axis direction and along the Y-axis direction;

the bag out-smoothing assembly 73 includes a smoothing upper bead 731 and a smoothing lower bead 732 that are disposed opposite.

Thus, before the sealing assembly 76 seals the mouth of the package bag 200, referring to fig. 27, the upper leveling bead 731 and the lower leveling bead 732 are moved above and below the mouth along the Y-axis direction, and then the upper leveling bead 731 and the lower leveling bead 732 are moved relatively far away from and closer to or reciprocate along the X-axis direction synchronously or successively to level the outer surface of the mouth of the package bag 200.

The bag external smoothing assembly 73 further comprises a second smoothing driving cylinder 733, the smoothing upper pressing bar 731 and the smoothing lower pressing bar 732 are both in driving connection with the output end of the second smoothing driving cylinder 733, and the smoothing upper pressing bar 731 and the smoothing lower pressing bar 732 are driven to move along the X-axis direction through the second smoothing driving cylinder 733.

Further describing, referring to fig. 21, the vacuum sealing module 7 further includes a vacuum Y-axis moving plate 74 and a vacuum Y-axis feeding mechanism 75, and the vacuum Y-axis feeding mechanism 75 drives the vacuum Y-axis moving plate 74 to move along the Y-axis;

the evacuation assembly 71, the in-bag smoothing assembly 72, and the out-of-bag smoothing assembly 73 are all assembled to an evacuation Y-axis moving plate 74.

Thereby, the evacuation module 71, the in-bag smoothing module 72 and the out-bag smoothing module 73 are driven to move and feed in the Y-axis direction by the evacuation Y-axis moving plate 74. The vacuum-pumping Y-axis feeding mechanism 75 may be a structure of matching a belt with a motor, the motor drives the belt to rotate, and the belt drives the vacuum-pumping Y-axis moving plate 74 to move.

Further to illustrate, referring to fig. 23, the vacuum pumping assembly 71 further includes a vacuum Y-axis cylinder 712, an output end of the vacuum Y-axis cylinder 712 is connected to the vacuum tube 711, and the vacuum Y-axis cylinder 712 drives the vacuum tube 711 to move along the Y-axis direction, so that the vacuum tube 711 can be independently controlled to insert into or withdraw from the packaging bag 200;

the front end of the vacuum tube 711 may be flat to facilitate easy insertion into the package 200 and to facilitate better sealing of the mouth by the seal assembly 76.

Referring to fig. 28 to 31, the structure and principle of the synchronous moving jig module 6 are described:

in the process of feeding the packaging bag 200 filled with the product 100 from the bag opening station 2b to the vacuum sealing station 2c, in order to maintain the position of the packaging bag 200 and the opening state of the bag mouth, a synchronous moving clamp module 6 is arranged, and even if the synchronous moving clamp module 6 is not arranged, the subsequent vacuumizing and sealing actions are not influenced, but the success rate and quality of vacuumizing and sealing can be further improved by arranging the synchronous moving clamp module 6;

referring to fig. 28, the synchronous moving jig module 6 is provided at a side of the package transfer line 2 remote from the bag feeding module 4;

the synchronous moving clamp module 6 comprises a synchronous clamp assembly 61, a relative motion assembly 62, a synchronous moving Z-axis feeding mechanism, a synchronous moving Y-axis feeding mechanism and a synchronous moving X-axis feeding mechanism 63 which are connected in sequence;

the two synchronous clamp assemblies 61 are oppositely arranged, and the two synchronous clamp assemblies 61 are driven to move relatively by the relative movement assembly 62.

The synchronous clamp assembly 61 comprises a synchronous finger cylinder 611 and a synchronous clamping block 612, wherein the synchronous finger cylinder 611 drives the synchronous clamping block 612 to perform clamping and loosening actions; the synchronous moving X-axis feeding mechanism 63 may be a linear motor or a belt and motor matching structure, the synchronous moving Y-axis feeding mechanism may be a cylinder structure, and the synchronous moving Z-axis feeding mechanism may be a cylinder structure;

working principle: referring to fig. 31, after the product 100 is packed into the packaging bag 200, the edge of the packaging bag 200 is clamped by the synchronous clamp assembly 61, then the packaging bag 200 filled with the product 100 and located at the bag opening station 2b is fed to the vacuum sealing station 2c by the synchronous clamp assembly 61 and the packaging conveying line 2 synchronously, namely, the feeding speed of the synchronous moving X-axis feeding mechanism 63 and the packaging conveying line 2 is the same, the packaging bag 200 is fed from the bag opening station 2b to the vacuum sealing station 2c, the edge of the packaging bag 200 is always clamped by the synchronous clamp assembly 61, so that the relative position of the packaging bag 200 is fixed, the opening state of the bag opening of the packaging bag 200 is maintained, the vacuum tube 711 of the vacuumizing sealing module 7 at the rear station and the insertion of the smoothing rule 721 are facilitated, the vacuum tube 711 and the smoothing rule 721 are ensured to be smoothly inserted into the packaging bag 200, and before sealing, the synchronous clamp assembly 61 can make relative distance movement to smooth the bag opening of the packaging bag 200, and the bag opening of the packaging bag 200 can be matched with the bag inner smoothing assembly 72 and the bag outer smoothing assembly 73, namely, after the smoothing rule 721 is inserted into the packaging bag 200, the bag opening is further smoothed, and the bag opening of the packaging bag 200 is further smoothed, and the sealing quality is further smoothed, and the bag opening is further smoothed, and the sealing is further smoothed.

Referring to fig. 29 and 30, the relative movement assembly 62 includes a rotation lever 621, a first swing lever 622, a second swing lever 623, a first X-axis moving plate 624, a second X-axis moving plate 625, a relative movement driving cylinder 626, and a base plate 627;

the first X-axis moving plate 624 and the second X-axis moving plate 625 are movably disposed on two sides of the substrate 627; the first X-axis moving plate 624 and the second X-axis moving plate 625 may be connected to the substrate 627 through a guide rod;

the first X-axis moving plate 624 and the second X-axis moving plate 625 are provided with a synchronizing fixture assembly 61;

the rotation lever 621 is rotatably connected to the base plate 627;

one end of the rotating rod 621 is hinged to one end of the first swing rod 622, and the other end of the first swing rod 622 is hinged to the first X-axis moving plate 624;

the other end of the rotating rod 621 is hinged to one end of the second swing rod 623, and the other end of the second swing rod 623 is hinged to the second X-axis moving plate 625;

one end of the relative movement driving cylinder 626 is connected to the base plate 627, and the other end of the relative movement driving cylinder 626 is connected to the first X-axis moving plate 624.

When the relative movement driving cylinder 626 drives the first X-axis moving plate 624 to move, the first X-axis moving plate 624 is synchronously driven to move through the sequential power transmission of the first swing rod 622, the rotating rod 621 and the second swing rod 623, so that the two synchronous clamp assemblies 61 can synchronously move relatively.

What has been disclosed above is but a few embodiments of the present invention. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit of the invention.

Claims (10)

1. An automatic vacuum packing machine, comprising:

a feeding conveying line (1) is provided with a feeding station (1 a);

a packaging conveying line (2) provided with a bag loading station (2 a), a bag opening station (2 b) and a vacuum sealing station (2 c);

the bag carrying module (3) is arranged at one side of the bag loading station (2 a) of the packaging conveying line (2);

the bag opening feeding module (4) is arranged on one side of a bag opening station (2 b) of the packaging conveying line (2), the bag opening feeding module (4) comprises a bag opening assembly (42), a bag opening assembly (43) and a pushing feeding assembly (41), and the pushing feeding assembly (41) is connected with the feeding conveying line (1);

the positioning fixture module (5) is arranged between the packaging conveying line (2) and the bag opening feeding module (4), and the positioning fixture module (5) comprises a positioning fixture assembly (51), a connecting rod assembly (53), a synchronous driving assembly (54), a positioning driving piece (56) and a base (55);

wherein the connecting rod assembly (53) is of a multi-connecting rod structure; the two ends of the base (55) are respectively provided with the connecting rod assemblies (53), and the two connecting rod assemblies (53) are respectively connected with the positioning clamp assembly (51); the synchronous driving assembly (54) is arranged between the two connecting rod assemblies (53); the positioning driving piece (56) drives the connecting rod assembly (53) to move;

the vacuumizing sealing module (7) is arranged on one side of the vacuum sealing station (2 c) of the packaging conveying line (2), and the vacuumizing sealing module (7) comprises a vacuumizing assembly (71), a sealing assembly (76) and a sealing assembly (77);

wherein the vacuum-pumping assembly (71) comprises a vacuum tube (711), the vacuum tube (711) being movable along the Y-axis direction; the sealing assembly (76) comprises an upper sealing strip (761) and a lower sealing strip (762) which are oppositely arranged, and the upper sealing strip (761) and the lower sealing strip (762) can both perform lifting movement; the sealing comprises an upper sealing strip (771) and a lower sealing strip (772) which are oppositely arranged, and the upper sealing strip (771) and the lower sealing strip (772) can both perform lifting movement.

2. An automatic vacuum packaging machine according to claim 1, wherein the bag handling module (3) comprises a handling suction nozzle (31), a handling Z-axis feeding mechanism (33) and a handling X-axis feeding mechanism (32) which are connected in sequence;

the bag carrying module (3) further comprises a bag bin (30).

3. An automatic vacuum packaging machine according to claim 1, wherein the bag opening assembly (42) comprises a bag opening upper suction nozzle (421) and a bag opening lower suction nozzle (422) which are oppositely arranged, the bag opening upper suction nozzle (421) is connected with a bag opening Z-axis upper cylinder (423), and the bag opening lower suction nozzle (422) is connected with a bag opening Z-axis lower cylinder (424);

the bag-supporting assembly (43) comprises a first transverse plate (435) and a first vertical plate (436); the first transverse plate (435) is in driving connection with the first stand (44) through a rod group Y-axis feeding mechanism (434);

the two first vertical plates (436) are symmetrically arranged at two ends of the first transverse plate (435), and the two first vertical plates (436) realize synchronous relative movement along the X-axis direction through the rod group X-axis feeding mechanism (433);

the two first vertical plates (436) are respectively provided with a bag supporting rod group (431), each bag supporting rod group (431) comprises an upper supporting rod (4311) and a lower supporting rod (4312), the lower supporting rods (4312) are fixedly connected to the lower ends of the first vertical plates (436), the upper supporting rods (4311) are connected to the upper ends of the first vertical plates (436), and the upper supporting rods (4311) realize movement in the Z-axis direction through a supporting rod Z-axis feeding mechanism (432);

the pushing feeding assembly (41) comprises a pushing plate (411), and the pushing plate (411) is in driving connection with the pushing X-axis feeding mechanism (412).

4. An automatic vacuum packaging machine according to claim 1, wherein the positioning jig assembly (51) comprises a positioning finger cylinder (511) and a positioning clamp block (512), the positioning clamp block (512) being in driving connection with the positioning finger cylinder (511);

the connecting rod assembly (53) comprises a first connecting rod (531), a second connecting rod (532), a third connecting rod (533) and a fourth connecting rod (534) which are sequentially hinged;

the upper end of the first connecting rod (531) is connected with the positioning clamp assembly (51);

the third link (533) is connected to the base (55).

5. The automatic vacuum packing machine according to claim 1, wherein the synchronous driving assembly (54) comprises a first linkage rod (541), a second linkage rod (542), a first gear (543), a second gear (544), a third linkage rod (545) and a fourth linkage rod (546) which are sequentially connected;

one end of the first linkage rod (541) is hinged with the middle part of a first connecting rod (531) of one connecting rod assembly (53), and the other end of the first linkage rod (541) is hinged with one end of a second linkage rod (542);

the other end of the second linkage rod (542) is linked with the first gear (543);

the first gear (543) is meshed with a second gear (544);

the second gear (544) is linked with one end of a third linkage rod (545);

the other end of the third linkage rod (545) is hinged with one end of a fourth linkage rod (546);

the other end of the fourth linkage rod (546) is hinged with the middle part of a first connecting rod (531) of the other connecting rod assembly (53);

the other end of the second linkage rod (542) is connected with the central shaft of the first gear (543), and the middle part of the second linkage rod (542) is connected with the edge part of the first gear (543);

one end of the third linkage rod (545) is connected with the central shaft of the second gear (544), and the middle part of the third linkage rod (545) is connected with the edge part of the second gear (544).

6. An automatic vacuum packaging machine according to claim 1, wherein the vacuum sealing module (7) further comprises an in-bag smoothing assembly (72), the in-bag smoothing assembly (72) comprises smoothing rules (721), the smoothing rules (721) are oppositely arranged in two, and the two smoothing rules (721) can move relatively along the X-axis direction and move along the Y-axis direction.

7. The automatic vacuum packaging machine according to claim 6, wherein the in-bag smoothing assembly (72) further comprises a smoothing X-axis feeding mechanism (722), the smoothing X-axis feeding mechanism (722) comprising a first timing belt (7221), a first smoothing drive cylinder (7222), a first timing connection block (7223) and a second timing connection block (7224);

a section of the first synchronous belt (7221) is connected with a first synchronous connecting block (7223), and the first synchronous connecting block (7223) is connected with one smoothing ruler (721);

the other section of the first synchronous belt (7221) is connected with a second synchronous connecting block (7224), and the second synchronous connecting block (7224) is connected with another smoothing ruler (721);

the output end of the first leveling driving cylinder (7222) is connected with a first synchronous connecting block (7223).

8. An automatic vacuum packaging machine according to claim 1, characterized in that the vacuum sealing module (7) further comprises two oppositely arranged bag outer smoothing assemblies (73), the two bag outer smoothing assemblies (73) being movable in the X-axis direction and in the Y-axis direction;

the bag external smoothing assembly (73) comprises a smoothing upper pressing bar (731) and a smoothing lower pressing bar (732) which are oppositely arranged.

9. An automatic vacuum packaging machine according to claim 1, further comprising a synchronous moving gripper module (6);

the synchronous moving clamp module (6) is arranged on one side of the packaging conveying line (2) away from the bag opening feeding module (4);

the synchronous moving clamp module (6) comprises a synchronous clamp assembly (61), a relative motion assembly (62), a synchronous moving Z-axis feeding mechanism, a synchronous moving Y-axis feeding mechanism and a synchronous moving X-axis feeding mechanism (63) which are connected in sequence;

two synchronous clamp assemblies (61) are oppositely arranged, and the relative movement assembly (62) drives the two synchronous clamp assemblies (61) to perform relative movement.

10. The automatic vacuum packing machine according to claim 9, wherein the relative movement assembly (62) includes a rotation lever (621), a first swing lever (622), a second swing lever (623), a first X-axis moving plate (624), a second X-axis moving plate (625), a relative movement driving cylinder (626), and a base plate (627);

the first X-axis moving plate (624) and the second X-axis moving plate (625) are movably arranged on two sides of the substrate (627);

the first X-axis moving plate (624) and the second X-axis moving plate (625) are both provided with the synchronous clamp assembly (61);

the rotating rod (621) is rotatably connected to the base plate (627);

one end of the rotating rod (621) is hinged with one end of the first swinging rod (622), and the other end of the first swinging rod (622) is hinged with the first X-axis moving plate (624);

the other end of the rotating rod (621) is hinged with one end of a second swinging rod (623), and the other end of the second swinging rod (623) is hinged with a second X-axis moving plate (625);

one end of the relative motion driving cylinder (626) is connected with the base plate (627), and the other end of the relative motion driving cylinder (626) is connected with the first X-axis moving plate (624).