CN115848706A - Vacuum packaging machine - Google Patents

Abstract

The application discloses a vacuum packaging machine which comprises a machine body, a feeding mechanism, a rotating mechanism, a plurality of vacuum packaging mechanisms, a discharging conveying belt and a transferring mechanism, wherein each vacuum packaging mechanism comprises an air suction cover, a lower plate, an opening and closing device and a pair of bag clamping plates; the sliding block is transversely arranged on the first sliding rail through a linear actuator; the sucking disc, it is installed and is used for snatching the wrapping bag at the sliding block tip, ejection of compact conveyer belt is perpendicular with the hypoplastron that is in ejection of compact position, through adopting above-mentioned technical scheme, in daily use, accomplish the evacuation of wrapping bag and seal the back, extract air lid and hypoplastron are opened, the sliding block is to two hypoplastrons to be close to, the sucking disc snatchs the wrapping bag, then remove to ejection of compact conveyer belt, the bottom of the rectangular shape of wrapping bag this moment is perpendicular with ejection of compact conveyer belt's direction of delivery, when dropping on the ejection of compact conveyer belt of operation, must fall backward, make the gesture of each wrapping bag unanimous, make things convenient for the unloading.

Description

Vacuum packaging machine

Technical Field

The invention relates to a vacuum packaging machine.

Background

The vacuum packaging machine can automatically pump out the air in the packaging bag, and the sealing process is completed after the preset vacuum degree is reached. Or filling nitrogen or other mixed gas, and then finishing the sealing process. Vacuum packaging machines are often used in the food industry because after vacuum packaging, food is resistant to oxidation, thereby achieving long-term storage.

The existing vacuum packaging machine is generally provided with a frame, a feeding mechanism, a vacuum packaging mechanism and a discharging mechanism, for example, the invention patent of China with publication number CN114711380B discloses a vacuum packaging process for rice dumplings, which discloses a two-in-one novel bag feeding type vacuum packaging machine, comprising a case, a control panel, a prefabricated bag placing mechanism, a rice dumpling leaf tray mechanism, a rice dumpling leaf placing mechanism, a plurality of equidistantly distributed material placing rotary drums, a plurality of equidistantly distributed material clamping mechanisms, a bag clamping rotating mechanism, a liquid injection mechanism, a rotating mechanism and a discharging crawler machine, wherein the vacuum sealing mechanism comprises a vacuum box body, a support plate, a rotating base, a linear bearing, an air suction opening, a vacuum air pump, an air pipe connection, a sealing ejector rod, a sealing silica gel strip, a bag clamping plate, a vacuum pressure gauge, a box cover, a opening and closing push rod and a sealing heating strip, so as to realize continuous feeding, bagging, vacuum packaging and discharging, but still has the following defects:

1. the discharging crawler machine and the rotating track of the rotating mechanism are arranged in a tangent mode, packaging bags which are packaged are flat and the bottom ends of the packaging bags are usually long-strip-shaped, when the packaging bags fall down, the bottom ends of the packaging bags are parallel to the moving direction of the discharging crawler machine, when the packaging bags are in contact with the discharging crawler machine, the packaging bags can turn left or right unpredictably, the packaging bags cannot be guaranteed to be located at the same position on the discharging crawler machine, and the boxing efficiency of a subsequent automatic boxing machine is affected;

2. the bag clamping plate is not provided with a locking mechanism to ensure that the packaging belt is firmly clamped, and the articles in the packaging bag easily drop when the mass of the articles is large.

Disclosure of Invention

The present invention is directed to solving one of the technical problems of the prior art.

The application provides a vacuum packaging machine, include organism, feed mechanism, rotary mechanism, a plurality of vacuum packaging mechanism, still include:

the discharging conveyer belt is arranged on the machine body, and one end of the discharging conveyer belt extends outwards of the machine body;

the transfer mechanism is used for transferring the packaged packaging bags to the discharging conveying belt;

wherein, the lower part of the packaging bag which is moved to the discharging conveyer belt by the transfer mechanism is vertical to the moving direction of the discharging conveyer belt.

The vacuum packaging mechanism comprises:

the air extraction cover is movably arranged on the top of the rotating mechanism through a pair of parallel support arms;

the lower plate is arranged in the middle of the rotating mechanism in a turnover mode through a hinge;

the opening and closing device is used for driving the opening and closing of the air suction cover and the lower plate;

a pair of bag clamping plates which can be installed on the upper surface of the lower plate in a turnover mode.

The transfer mechanism includes:

the first sliding rail is arranged above the discharging conveying belt through a rack;

the sliding block can be transversely arranged on the first sliding rail through the straight actuator;

the sucking disc is arranged at the end part of the sliding block and used for grabbing the packaging bag;

the slide rail is parallel to the discharge conveying belt, and the discharge conveying belt is perpendicular to the lower plate at the discharge position.

The device that opens and shuts includes:

one end of the connecting rod is hinged with one of the parallel supporting arms;

the top rod is movably arranged on the rotating mechanism in a lifting way, and the top end of the top rod is hinged with the connecting rod;

one end of the swing arm is hinged with the bottom of the rotating mechanism, and the other end of the swing arm is hinged with the bottom end of the ejector rod;

and the linkage device is used for enabling the ejector rod to ascend when passing through the transfer mechanism and the feeding mechanism.

The linkage device includes:

the guide frame is semicircular, is arranged between the rotating mechanism and the machine body, and is concentric with the rotating mechanism;

the guide groove is arranged at the top of the outer side wall of the guide frame and comprises an ascending section, a holding section and a descending section;

the guide blocks are respectively and fixedly arranged on the inner side walls of the swing arms;

wherein, the guide block is kept away from the swing arm end and can be with guide slot sliding fit, and ascending section, holding section and descending section set gradually according to rotary mechanism's optional direction.

The vacuum packaging mechanism further comprises:

one end of each rotating shaft is fixedly connected with the corresponding bag clamping plate, and the other end of each rotating shaft movably penetrates through the lower plate and extends out of the bottom of the lower plate;

the middle part of the first connecting plate is fixedly arranged on one rotating shaft;

the second connecting plate is triangular, and one end of the inner side of the second connecting plate is fixedly arranged on the other rotating shaft;

one end of the linkage arm is hinged with one end of the inner side of the second connecting plate, and the other end of the linkage arm is hinged with the outer side end of the second connecting plate;

the driving unit is used for driving the second connecting plate to rotate around the corresponding rotating shaft;

and the locking unit is used for locking after the driving unit drives the second connecting plate to rotate.

Further comprising:

the sleeve is fixedly arranged at the bottom end of the lower plate and sleeved outside any rotating shaft;

the locking cavity is arranged at the lower end of the rotating shaft corresponding to the sleeve;

the locking grooves are symmetrically arranged on the inner wall of the locking cavity;

the pair of through grooves are symmetrically arranged at the top of the inner wall of the locking cavity and correspond to the locking grooves;

the pair of locking blocks can be movably inserted into the corresponding through grooves respectively and can be in inserting fit with the corresponding locking grooves;

the first spring is arranged between the adjacent end parts of the pair of locking blocks;

and a locking unit for disengaging the pair of locking blocks from the locking grooves when the lower plate moves to correspond to the transfer mechanism.

The locking unit includes:

the lifting plate is arranged in the locking cavity in a lifting and sliding manner;

the cover ring is fixedly arranged at the lower end of the rotating shaft;

the upper end of the supporting block is fixedly arranged on the bottom surface of the lifting plate, and the lower end of the supporting block is spherical and extends out of the locking cavity after penetrating through the ring cover;

the bottom ends of the unlocking blocks are fixedly arranged on the top surface of the lifting plate, and the top ends of the unlocking blocks are inwards inclined;

the unlocking grooves are respectively arranged on the bottom surfaces of the locking blocks and have the same shape as the upper ends of the corresponding unlocking blocks;

and the upright post is fixedly arranged on the top surface of the machine body and is positioned between the rotating mechanism and the transferring mechanism.

The locking unit further includes:

the pair of reset arc grooves are symmetrically arranged on the side wall of the upper part of the inner cavity of the sleeve;

the pair of reset sliding blocks are symmetrically arranged on the outer wall of the rotating shaft and are respectively in sliding fit with the corresponding reset arc grooves;

a pair of reset springs respectively installed between each reset arc groove and the corresponding reset slide block;

wherein, the reset spring is extruded when the corresponding reset slide block rotates clockwise.

The drive unit includes:

the second sliding rail is fixedly arranged at the top of the machine body and is arranged below the lower plate positioned at the loading position;

the rack can be slidably arranged on the second sliding rail;

the rotating wheel is rotatably arranged at the top of the machine body, and a first tooth group for driving the rack is arranged in three quarters of the peripheral side of the rotating wheel and is driven by a first driving motor;

the balance wheel is semicircular, a second tooth set used for being in transmission with the rack is arranged on the arc side, and the straight side is rotatably arranged on the machine body through a pin shaft;

the two ends of the tension spring are connected with the top surface of the balance wheel and the top of the machine body and are used for applying clockwise tension to the balance wheel;

one end of the shifting rod is fixedly arranged at the top of the pin shaft, and the top of the other end of the shifting rod is provided with a shifting block for shifting the far end of the connecting plate.

The invention has the following beneficial effects:

1. through the arrangement of the discharging conveying belt, the first sliding rail, the sliding block and the sucking disc which are vertically arranged with the vacuum packaging mechanism at the discharging position, the packaged packaging bag falls down towards the same direction when falling onto the discharging conveying belt, so that the subsequent blanking is convenient;

2. through the arrangement of the pair of parallel support arms, the connecting rod, the ejector rod, the swing arm, the guide frame, the guide groove and the guide block, the air exhaust cover and the lower plate are automatically opened when approaching the discharging conveyer belt and automatically closed after passing through the discharging conveyer belt and the feeding mechanism, the electric control is not needed, the control is realized through a pure mechanical structure, and the control difficulty is reduced;

3. through the arrangement of a pair of rotating shafts, a first connecting plate, a second connecting plate, a linkage arm, a sleeve, a locking cavity, a pair of locking grooves, a pair of through grooves, a pair of locking blocks, a first spring, a lifting plate, a cover ring, a support block, a pair of unlocking blocks, a pair of unlocking grooves, an upright post, a pair of reset arc grooves, a pair of reset sliders and a pair of reset springs, when a packaging bag is clamped by a pair of bag clamping plates, the positions of the pair of bag clamping plates are fixed, and when a corresponding air suction cover and the corresponding lower plate move to the corresponding positions of a discharging conveying belt, the pair of bag clamping plates are automatically opened, so that the pair of bag clamping plates keep the clamping force on the packaging bag in a non-blanking step, and the packaging bag is prevented from falling;

4. through the matching arrangement of the sliding rail II, the rack, the driving motor I, the rotating wheel, the tooth group I, the balance wheel, the tooth group II, the tension spring, the shifting rod and the shifting block, the shifting rod can be reset after swinging by taking the pin shaft as an original point only by controlling the starting and stopping of the driving motor I, the swinging stroke is fixed, and the phenomenon that adjacent parts are damaged due to excessive swinging of the shifting rod cannot occur.

Drawings

FIG. 1 is a perspective view of a vacuum packaging machine in an embodiment of the present application;

FIG. 2 is a schematic view of the housing and the top structure thereof according to the embodiment of the present disclosure;

FIG. 3 is an enlarged view of a portion A of FIG. 2;

FIG. 4 is a schematic view of the structure of the guide frame, the guide groove and the guide block in the embodiment of the present application;

FIG. 5 is a schematic structural diagram of a vacuum packaging mechanism in an embodiment of the present application;

FIG. 6 is a schematic view of a structure of the driving unit and the second connecting plate according to an embodiment of the present disclosure;

FIG. 7 is a schematic structural diagram of a driving unit according to an embodiment of the present application;

FIG. 8 is a schematic cross-sectional view taken along line B-B of FIG. 6;

fig. 9 is a schematic cross-sectional view taken along the direction C-C in fig. 8.

Reference numerals

1-machine body, 2-feeding mechanism, 3-rotating mechanism, 301-support column, 302-rotating disc, 303-gear ring, 304-gear, 305-driving motor II, 4-vacuum packaging mechanism, 401-suction cover, 402-parallel support arm, 403-lower plate, 404-hinge, 405-bag clamping plate, 406-locking cavity, 407-locking groove, 408-through groove, 409-locking block, 410-spring I, 411-barometer, 412-negative pressure tube, 413-heating strip, 414-rotating shaft, 415-connecting plate I, 416-connecting plate II, 417-linkage arm, 418-sleeve, 5-discharging conveying belt, 6-transfer mechanism, 601-sliding rail I, 602-machine frame, 603-sliding block, 604-straight actuator 605-sucker, 7-opening and closing device, 701-connecting rod, 702-ejector rod, 703-swing arm, 8-linkage device, 801-guide frame, 802-guide groove, 802 a-ascending section, 802 b-retaining section, 802 c-descending section, 803-guide block, 9-drive unit, 901-sliding rail II, 902-rack, 903-rotating wheel, 904-first tooth group, 905-balance, 906-second tooth group, 907-tension spring, 908-deflector rod, 909-pin shaft, 910-shifting block, 911-limit stop, 10-locking unit, 1001-lifting plate, 1002-cover ring, 1003-unlocking block, 1004-unlocking groove, 1005-resetting arc groove, 1006-resetting slide block, 1007-resetting spring, 1005-resetting spring, 1008-anti-loosening grooves, 1009-anti-loosening columns, 1010-spring II, 1011-through holes, 1012-unlocking columns, 1013-supporting blocks and 1014-vertical columns.

Detailed Description

The technical solutions in the embodiments of the present application will be described below clearly with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived from the embodiments in the present application by a person skilled in the art, are within the scope of protection of the present application.

The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application may be practiced in sequences other than those illustrated or described herein, and that the terms "first," "second," and the like are generally used herein in a generic sense and do not limit the number of terms, e.g., the first term can be one or more than one. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.

The server provided by the embodiment of the present application is described in detail below with reference to the accompanying drawings through specific embodiments and application scenarios thereof.

Example 1:

as shown in fig. 1 and 5, an embodiment of the present application provides a vacuum packaging machine, which includes a machine body 1, a feeding mechanism 2, a rotating mechanism 3, a plurality of vacuum packaging mechanisms 4, and a discharging conveyor belt 5, which is installed on the machine body 1, and one end of which extends outward from the machine body 1; and the transfer mechanism 6 is used for transferring the packaged packaging bags to the discharging conveying belt 5, and the lower parts of the packaging bags moved to the discharging conveying belt 5 by the transfer mechanism 6 are vertical to the moving direction of the discharging conveying belt 5.

Further, the vacuum packaging mechanism 4 comprises an air pumping cover 401 movably mounted on the top of the rotating mechanism 3 through a pair of parallel support arms 402; a lower plate 403 which is rotatably mounted in the middle of the rotating mechanism 3 by a hinge 404; an opening and closing device 7 for driving the opening and closing of the suction cover 401 and the lower plate 403; a pair of bag holding plates 405 is mounted on the upper surface of the lower plate 403 in a reversible manner.

Further, the transfer mechanism 6 comprises a first slide rail 601 which is arranged above the discharging conveyor belt 5 through a frame 602; a sliding block 603 which is transversely arranged on the first sliding rail 601 through a straight actuator 604; and the sucking disc 605 is arranged at the end part of the sliding block 603 and used for grabbing the packaging bag, the sliding rail and the discharging conveyer belt 5 are mutually parallel, and the discharging conveyer belt 5 is vertical to the lower plate 403 at the discharging position.

In the embodiment of the present application, due to the above-mentioned structure, the transfer mechanism 6 drives each vacuum packaging mechanism 4 to rotate counterclockwise, the discharge conveyor 5 and the feeding mechanism 2 are arranged around the transfer mechanism 6 at intervals counterclockwise in the circumferential direction, the pumping cover 401 and the lower plate 403 of the vacuum packaging mechanism 4 at the position corresponding to the discharge conveyor 5 are opened under the cooperation of the opening and closing device 7 and the parallel support arm 402, the sliding block 603 is driven by the linear actuator 604 to approach the lower plate 403 of the vacuum packaging mechanism 4, the suction cup 605 sucks the packaged packaging bag, at the same time, the pair of bag clamping plates 405 is opened, the linear actuator 604 operates to move the sliding block 603 above the discharge conveyor 5, when the packaging bag moves above the discharge conveyor 5, the suction cup releases the grabbing of the packaging bag, the packaging bag freely falls to the top of the discharge conveyor 5, and the width direction of the bottom end of the packaging bag is perpendicular to the conveying direction of the discharge conveyor 5, therefore, when the packaging bag falls to the top of the discharge conveyor 5, the lower end moves away from the machine body 5, the upper end falls down to the machine body 1, and at the same time, the rotating mechanism 3 operates again to make the packaging bag 4 move into the vacuum packaging mechanism 4 and the vacuum packaging bag loading mechanism 401 and the packaging bag 2, the vacuum packaging mechanism 4 and the packaging bag loading mechanism 2 are continuously operates, and the packaging bag, the packaging bag loading mechanism 2, and the packaging bag, and the packaging mechanism 2 are loaded in parallel support arm 402;

the straight actuator 604 is a straight cylinder or hydraulic cylinder;

the rotating mechanism 3 comprises a support column 301, a rotary table 302, a gear ring 303, a gear 304 and a second driving motor 305, the rotary table 302 is fixedly installed at the top end of the support column 301, the support column 301 is rotatably installed at the top of the machine body 1, the gear ring 303 is installed on the outer wall of the support column 301, the gear 304 is in transmission connection with the gear ring 303 and is fixedly connected with an output shaft of the second driving motor 305, and the second driving motor 305 is fixedly installed on the machine body 1;

the air suction cover 401 is further provided with an air pressure gauge 411 and a negative pressure pipe 412, and the top surface of the lower plate 403 is further provided with a sealing and heating strip 413.

Example 2:

as shown in fig. 2 to 5, in the present embodiment, in addition to the structural features of the previous embodiments, the opening and closing device 7 includes a connecting rod 701 having one end hinged to one of the parallel arms 402; the top rod 702 is movably arranged on the rotating mechanism 3 in a lifting way, and the top end of the top rod is hinged with the connecting rod 701; one end of the swing arm 703 is hinged with the bottom of the rotating mechanism 3, and the other end is hinged with the bottom end of the top rod 702; and a linkage 8 for raising the lift rod 702 when it passes through the transfer mechanism 6 and the feed mechanism 2.

Further, the linkage 8 includes a guide frame 801, which is semicircular, disposed between the rotating mechanism 3 and the machine body 1, and disposed concentrically with the rotating mechanism 3; a guide groove 802, which is provided on the top of the outer sidewall of the guide frame 801, and includes an ascending section 802a, a holding section 802b, and a descending section 802c; the guide blocks 803 are respectively fixedly mounted on the inner side walls of the swing arms 703, the ends of the guide blocks 803, which are far away from the swing arms 703, can be in sliding fit with the guide grooves 802, and the ascending section 802a, the holding section 802b and the descending section 802c are sequentially arranged along the optional direction of the rotating mechanism 3.

In this embodiment of the application, due to the above structure, the guiding frame 801 is disposed between the rotating mechanism 3 and the discharging conveyor belt 5 and the feeding mechanism 2, and meanwhile, the holding section 802b of the guiding groove 802 corresponds to the discharging conveyor belt 5 and the feeding mechanism 2, when the vacuum packaging mechanism 4 moves towards the discharging conveyor belt 5, the corresponding guiding block 803 enters the ascending section 802a, and with the continued movement of the vacuum packaging mechanism 4, the corresponding guiding block 803 slides from the ascending section 802a to the holding section 802b, correspondingly, the swing arm 703 also swings around its hinge point with the rotating mechanism 3, the other end pushes the top rod 702 to ascend, so that the connecting rod 701 pushes the pair of parallel arms 402 to ascend, so that the pumping cover 401 is separated from the lower plate 403, and the lower plate 403 that is not pressed by the pumping cover 401 swings around the corresponding hinge 404, the outer end falls, the inner end rises to incline the upper surface of the lower plate 403, the rotating mechanism 3 continues to act, so that after the air suction cover 401 and the lower plate 403 complete the actions of blanking and loading through the discharging conveyer belt 5 and the loading mechanism 2, the guide block 803 slides from the holding section 802b to the descending section 802c, the horizontal height of the holding section 802b on the descending section 802c continuously descends along with the continuous operation of the rotating mechanism 3, correspondingly, the swing arm 703 also swings around the hinge point of the swing arm 703 and the rotating mechanism 3, the other end of the swing arm, the ejector rod 702, the connecting rod 701, the pair of parallel support arms 402 and the air suction cover 401 all descend under the action of gravity, the inner end of the descending air suction cover 401 is contacted with the inner end of the lower plate 403 to drive the inner plate to swing around the hinge 404 until the air suction cover 401 and the lower plate 403 are folded, and the guide block 803 is separated from the descending section 802c.

The turntable 302 is provided with a notch (not shown) for lifting the top rod 702.

Example 3:

in the present embodiment, as shown in fig. 5, fig. 6 and fig. 8, in addition to the structural features of the previous embodiments, the vacuum packaging mechanism 4 further includes a pair of rotating shafts 414, one end of each of which is fixedly connected to the corresponding bag clamping plate 405, and the other end of each of which is movably inserted through the lower plate 403 and extends out of the bottom of the lower plate 403; a first connecting plate 415, the middle part of which is fixedly arranged on one rotating shaft 414; a second connecting plate 416 which is triangular, and one end of the inner side of the second connecting plate is fixedly arranged on the other rotating shaft 414; one end of the linkage arm 417 is hinged with one end of the inner side of the second connecting plate 416, and the other end of the linkage arm 417 is hinged with the end of the outer side of the second connecting plate 416; the driving unit 9 is used for driving the second connecting plate 416 to rotate around the corresponding rotating shaft 414; and the locking unit 10 is used for locking after the driving unit 9 drives the second connecting plate 416 to rotate.

Further, the device also comprises a sleeve 418 which is fixedly arranged at the bottom end of the lower plate 403 and is sleeved outside any rotating shaft 414; a locking chamber 406 provided at a lower end of the rotation shaft 414 corresponding to the sleeve 418; a pair of locking grooves 407 symmetrically arranged on the inner wall of the locking cavity 406; a pair of through grooves 408 symmetrically arranged on the top of the inner wall of the locking cavity 406 and corresponding to the locking grooves 407; a pair of locking blocks 409 which are movably inserted into the corresponding through grooves 408 respectively and can be in inserted fit with the corresponding locking grooves 407; a first spring 410 disposed between adjacent ends of the pair of locking blocks 409; and a lock unit 10 for disengaging the pair of lock pieces 409 from the lock grooves 407 when the lower plate 403 is moved to correspond to the transfer mechanism 6.

In this embodiment of the present application, due to the above-mentioned structure, when the feeding mechanism 2 moves the packaging bag to the surface of the lower plate 403, the driving unit 9 drives the second connecting plate 416 to swing around the rotating shaft 414 installed on itself, and at this time, the linkage arm 417 operates simultaneously, and pulls the connecting plate to swing around the rotating shaft 414 installed on itself, and at this time, the rotating directions of the pair of rotating shafts 414 are opposite, so that the pair of bag clamping plates 405 swing towards the surface of the lower plate 403, in this process, one of the rotating shafts 414 rotates in the sleeve 418, and the packaging bag is clamped and fixed on the surface of the lower plate 403, at this time, the pair of locking blocks 409 move to the position corresponding to the pair of locking grooves 407, and under the action of the first spring 410, the outer ends of the pair of locking blocks 409 are inserted into the corresponding locking grooves 407, so that the sleeve 418 and the corresponding rotating shaft 414 are fixed, and at the same time, because the rotating shaft 414 cannot rotate, the pair of bag clamping plates 416 and the other rotating shaft 414, which is in transmission connected with the first connecting plate 415, the second connecting plate 416 and the linkage arm 417, cannot swing, so that the clamping force of the packaging bag clamping plates 403 can be kept before the packaging bag is completely sealed and moved to the position corresponding to the position of the discharging conveyor belt 5, and even the lower plate, thereby preventing the packaging bag 405 from shifting;

when the air suction cover 401 and the lower plate 403 are opened and move to the position corresponding to the discharging conveyer belt 5, the locking unit 10 and the transfer mechanism 6 operate simultaneously, when the transfer mechanism 6 grabs the packaged packaging bag, the locking unit 10 acts to enable the pair of locking blocks 409 to move towards the direction far away from the corresponding locking grooves 407 until the locking blocks 409 are separated from the corresponding locking grooves 407, so that the rotating shafts 414 can rotate, the pair of bag clamping plates 405 release the clamping of the packaging bag, the transfer mechanism 6 operates subsequently, the packaging bag moves towards the discharging conveyer belt 5, meanwhile, the packaging bag stirs the pair of bag clamping plates 405 to enable the rotating shafts 414 to rotate, at the moment, the pair of locking blocks 409 and the corresponding locking grooves 407 are staggered, and then the transfer mechanism 6 transfers the packaged packaging bag to the discharging conveyer belt 5.

Example 4:

as shown in fig. 6, 8 and 9, in the present embodiment, in addition to including the structural features of the foregoing embodiment, the locking unit 10 includes a lifting plate 1001 which is slidably mounted in a locking chamber 406 in a liftable manner; a cover ring 1002 fixedly installed at a lower end of the rotation shaft 414; a support block 1013, the upper end of which is fixedly installed on the bottom surface of the lifting plate 1001 and the lower end of which is spherical, and which passes through the ring cover and extends out of the locking cavity 406; a pair of unlocking blocks 1003, the bottom ends of which are fixedly arranged on the top surface of the lifting plate 1001 and the top ends of which are inclined inwards; a pair of unlocking slots 1004, which are respectively arranged on the bottom surface of each locking block 409 and have the same shape as the upper end of the corresponding unlocking block 1003; and a column 1014 fixedly installed on the top surface of the machine body 1 between the rotating mechanism 3 and the transferring mechanism 6.

Further, the locking unit 10 further includes a pair of anti-loosening grooves 1008 disposed at the top end of the locking cavity 406 and corresponding to the unlocking blocks 1003, respectively; a pair of anti-slip columns 1009 slidably mounted in the corresponding anti-slip grooves 1008; a pair of second springs 1010 respectively arranged between the inner ends of the anti-falling columns 1009 and the corresponding inner ends of the anti-loosening grooves 1008; a pair of through holes 1011 respectively penetrating the locking blocks 409 up and down to communicate the corresponding anti-loosening grooves 1008 and the unlocking grooves 1004; a pair of unlocking posts 1012 are slidably mounted in the respective anti-loosening grooves 1008 and through holes 1011.

Further, the locking unit 10 further includes a pair of reset arc grooves 1005 symmetrically disposed on the upper side wall of the inner cavity of the sleeve 418; a pair of reset sliding blocks 1006, symmetrically arranged on the outer wall of the rotating shaft 414, and respectively in sliding fit with the corresponding reset arc grooves 1005; and the pair of return springs 1007 are respectively installed between each return arc groove 1005 and the corresponding return slide block 1006, and the return springs 1007 are extruded when the corresponding return slide blocks 1006 rotate clockwise.

In this embodiment of the present application, due to the above structure, when the lower plate 403 moves to the position corresponding to the discharging conveyor belt 5, the lower end of the support block 1013 contacts the upper end of the column 1014 and is pushed by the column 1014 to move into the locking cavity 406, the lifting plate 1001 and the pair of unlocking blocks 1003 rise in the locking cavity 406, each unlocking block 1003 first pushes the corresponding unlocking column 1012 to rise until each anti-falling column 1009 is pushed into the corresponding anti-loosening groove 1008 by the corresponding unlocking column 1012, at this time, each second spring 1010 is compressed and shortened, the top surface of each unlocking column 1012 is flush with the upper end surface of the corresponding locking block 409, the lower end is flush with the unlocking groove 1004, at this time, the top end of the unlocking block simultaneously abuts against the lower end of the unlocking column 1012 and the inner side wall of the unlocking groove 1004, the lifting plate 1001 continues to rise, each unlocking block 1003 rises together with the lifting plate 1001 and cooperates with each unlocking groove 1004, so that the corresponding locking block 409 moves away from the corresponding locking groove 407 until each locking block 409 disengages from the corresponding locking groove 407, at this time, each second spring 1010 releases the elastic potential energy to make the corresponding locking block 417 rotate in the corresponding pair of the corresponding locking groove 415 and the corresponding locking clamp link arm 416, at this time, so that the corresponding locking plate 409 and the corresponding pair of the corresponding locking block 409 rotate in the corresponding locking groove 409 and the corresponding locking link clamp groove 414;

when the blanking is completed and the corresponding lower plate 403 moves to the feeding mechanism 2, the support blocks 1013 are separated from the upright posts 1014, the lifting plate 1001, the unlocking blocks 1003 and the unlocking columns 1012 all descend under the action of gravity, at the moment, the first spring 410 releases elastic potential energy, the outer ends of the pair of locking blocks 409 are abutted with the inner wall of the sleeve 418, and at the moment, the lower ends of the pair of locking columns are also abutted with the top surfaces of the corresponding locking blocks 409 under the action of the second springs 1010;

when the feeding is finished, the driving unit 9 operates to drive the pair of rotating shafts 414 to rotate, in the process, the pair of reset sliding blocks 1006 rotate along with the corresponding rotating shafts 414, so that the reset springs 1007 are compressed to store elastic potential energy until the packaging bag is fixed on the upper surface of the lower plate 403 by the pair of bag clamping plates 405, at the moment, the locking blocks 409 correspond to the locking grooves 407, the outer ends of the locking grooves 407 are inserted into the corresponding locking grooves 407 under the action of the first spring 410, and the lower ends 1011 of the loosening columns are inserted into the corresponding through holes 1011 under the action of the second springs 1010, so that the fixing of the pair of rotating shafts 414 is finished.

The cover ring 1002 is mounted by welding.

Example 5:

as shown in fig. 6 and 7, in the present embodiment, in addition to the structural features of the previous embodiment, the driving unit 9 includes a second sliding rail 901, which is fixedly installed on the top of the machine body 1 and is disposed below the lower plate 403 at the loading position; the rack 902 can be slidably arranged on the second sliding rail 901; the rotating wheel 903 is rotatably arranged at the top of the machine body 1, a first tooth group 904 for transmission with the rack 902 is arranged in three quarters of the peripheral side of the rotating wheel, and the rotating wheel is driven by a first driving motor; a balance 905 which is in a semicircular shape, a second tooth set 906 used for being in transmission with the rack 902 is arranged on the arc side, and the straight side is rotatably arranged on the machine body 1 through a pin roll 909; a tension spring 907, the two ends of which are connected with the top surface of the balance wheel 905 and the top of the machine body 1, and used for applying clockwise tension to the balance wheel 905; and the shifting rod 908 is fixedly arranged at the top of the pin shaft 909 at one end, and a shifting block 910 for shifting the far end of the second connecting plate 416 is arranged at the top of the other end.

Further, the driving unit 9 further includes a limit stop 911, which is fixedly installed on the top of the machine body 1 and is used for matching with the straight side of the balance 905 to limit the rotation angle of the balance 905.

In this embodiment of the present application, due to the above-mentioned structure, when the lower plate 403 moves to a position corresponding to the feeding mechanism 2, and the feeding mechanism 2 moves the packaging bag to the surface of the upper plate, the first driving motor operates, the rotating wheel 903 rotates, the first tooth set 904 on the peripheral wall thereof is in transmission fit with the rack 902, the rack 902 is pushed in the direction of the balance 905, the second tooth set 906 on the arc side of the balance 905 is in transmission fit with the rack 902, the balance 905, the pin 909 and the rod 908 rotate clockwise around the circumference of the pin 909, the rod 908 swings towards the distal end of the second connecting plate 416, the distal end of the second connecting plate 416 is pushed, the second connecting plate 416 drives the rotating shaft 414 mounted thereon to rotate, meanwhile, the second connecting plate 416 pulls the first connecting plate 415 through the linkage arm, the rotating shaft 414 connected with the first connecting plate 415 to rotate simultaneously, the tension spring 907 is extended along with the rotation of the rotating disc 302 until the first tooth set 904 is separated from the rack 902, at this time, the pair of bag clamping plates 405 fixes the upper plate 409 on the upper plate 409, the outer end of the packaging bag, the outer end of each block is locked to the corresponding rotating shaft 905, the rotating shaft 905 is locked to the corresponding position of the rotating wheel 902, the vacuum stop 908, the vacuum stop dog 908 is not pulled by the vacuum lever 903, and the vacuum stop dog 908, the vacuum lever 903 is not pulled by the vacuum stop dog 903, and the vacuum lever 903, and the vacuum stop dog 908, the vacuum lever 903, the vacuum stop dog 908, the vacuum bar 903 is not rotating shaft 903 is moved around the vacuum bar 903, and the vacuum stop dog 903.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and mechanisms in the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functionality involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the present embodiments are not limited to those precise embodiments, which are intended to be illustrative rather than restrictive, and that various changes and modifications may be effected therein by one skilled in the art without departing from the scope of the appended claims.

Claims (10)

1. The utility model provides a vacuum packaging machine, includes organism (1), feed mechanism (2), rotary mechanism (3), a plurality of vacuum packaging mechanism (4), its characterized in that still includes:

the discharging conveyer belt (5) is arranged on the machine body (1), and one end of the discharging conveyer belt extends out of the machine body (1);

the transfer mechanism (6) is used for transferring the packaged packaging bags to the discharging conveying belt (5);

wherein, the lower part of the packaging bag moved to the discharging conveyer belt (5) by the transfer mechanism (6) is vertical to the moving direction of the discharging conveyer belt (5).

2. A vacuum packaging machine according to claim 1, characterized in that said vacuum packaging mechanism (4) comprises:

the air pumping cover (401) is movably arranged at the top of the rotating mechanism (3) through a pair of parallel support arms (402);

a lower plate (403) which is installed in the middle of the rotating mechanism (3) through a hinge (404) in a turnover mode;

an opening and closing device (7) for driving the opening and closing of the air suction cover (401) and the lower plate (403);

a pair of bag clamping plates (405) which can be installed on the upper surface of the lower plate (403) in a turnover mode.

3. A vacuum packaging machine according to claim 2, characterized in that said transfer mechanism (6) comprises:

the first sliding rail (601) is installed above the discharging conveying belt (5) through a rack (602);

a sliding block (603) which is transversely arranged on the first sliding rail (601) through a straight actuator (604);

a suction cup (605) mounted on an end of the slide block (603) for grasping the packaging bag;

the sliding rail is parallel to the discharging conveying belt (5), and the discharging conveying belt (5) is perpendicular to the lower plate (403) at the discharging position.

4. A vacuum packaging machine as claimed in claim 2 or 3, characterized in that said opening and closing means (7) comprise:

a connecting rod (701) with one end hinged with one of the parallel support arms (402);

the top rod (702) is movably arranged on the rotating mechanism (3) in a lifting way, and the top end of the top rod is hinged with the connecting rod (701);

one end of the swing arm (703) is hinged with the bottom of the rotating mechanism (3), and the other end of the swing arm is hinged with the bottom end of the ejector rod (702);

and the linkage device (8) is used for enabling the ejector rod (702) to ascend when passing through the transfer mechanism (6) and the feeding mechanism (2).

5. A vacuum packaging machine according to claim 4, characterized in that said linkage (8) comprises:

the guide frame (801) is semicircular, is arranged between the rotating mechanism (3) and the machine body (1), and is concentric with the rotating mechanism (3);

a guide groove (802) which is arranged on the top of the outer side wall of the guide frame (801) and comprises an ascending section (802 a), a holding section (802 b) and a descending section (802 c);

the guide blocks (803) are respectively and fixedly arranged on the inner side wall of each swing arm (703);

the end, far away from the swing arm (703), of the guide block (803) can be in sliding fit with the guide groove (802), and the ascending section (802 a), the holding section (802 b) and the descending section (802 c) are sequentially arranged along the optional direction of the rotating mechanism (3).

6. A vacuum packaging machine according to claim 2 or 3, characterized in that said vacuum packaging mechanism (4) further comprises:

one end of each rotating shaft (414) is fixedly connected with the corresponding bag clamping plate (405), and the other end of each rotating shaft movably penetrates through the lower plate (403) and extends out of the bottom of the lower plate (403);

the middle part of the connecting plate I (415) is fixedly arranged on one of the rotating shafts (414);

a second connecting plate (416) which is triangular, and one end of the inner side of the second connecting plate is fixedly arranged on the other rotating shaft (414);

one end of the linkage arm (417) is hinged with one end of the inner side of the second connecting plate (416), and the other end of the linkage arm is hinged with the end of the outer side of the second connecting plate (416);

the driving unit (9) is used for driving the second connecting plate (416) to rotate around the corresponding rotating shaft (414);

and the locking unit (10) is used for locking after the driving unit (9) drives the second connecting plate (416) to rotate.

7. The vacuum packaging machine as claimed in claim 6, further comprising:

the sleeve (418) is fixedly arranged at the bottom end of the lower plate (403) and sleeved outside any rotating shaft (414);

a locking chamber (406) provided at a lower end of the rotation shaft (414) corresponding to the sleeve (418);

a pair of locking grooves (407) symmetrically arranged on the inner wall of the locking cavity (406);

the pair of through grooves (408) are symmetrically arranged at the top of the inner wall of the locking cavity (406) and correspond to the locking grooves (407);

a pair of locking blocks (409) which are movably inserted into the corresponding through grooves (408) respectively and can be in inserted fit with the corresponding locking grooves (407);

a first spring (410) disposed between adjacent ends of a pair of the locking blocks (409);

and a locking unit (10) for disengaging the pair of locking pieces (409) from the locking grooves (407) when the lower plate (403) moves to correspond to the transfer mechanism (6).

8. The vacuum packaging machine according to claim 7, characterized in that said locking unit (10) comprises:

a lifting plate (1001) which is installed in the locking cavity (406) in a lifting and sliding manner;

a cover ring (1002) fixedly mounted on a lower end of the rotating shaft (414);

the upper end of the supporting block (1013) is fixedly arranged on the bottom surface of the lifting plate (1001), and the lower end of the supporting block is spherical and extends out of the locking cavity (406) through the ring cover;

the bottom ends of the unlocking blocks (1003) are fixedly arranged on the top surface of the lifting plate (1001), and the top ends of the unlocking blocks are inwards inclined;

a pair of unlocking grooves (1004) which are respectively arranged on the bottom surface of each locking block (409) and have the same shape as the upper end of the corresponding unlocking block (1003);

and the upright column (1014) is fixedly arranged on the top surface of the machine body (1) and is positioned between the rotating mechanism (3) and the transferring mechanism (6).

9. The vacuum packaging machine according to claim 8, characterized in that said locking unit (10) further comprises:

the pair of reset arc grooves (1005) are symmetrically arranged on the side wall of the upper part of the inner cavity of the sleeve (418);

the pair of reset sliding blocks (1006) are symmetrically arranged on the outer wall of the rotating shaft (414) and are respectively in sliding fit with the corresponding reset arc grooves (1005);

a pair of reset springs (1007) respectively installed between each reset arc groove (1005) and the corresponding reset sliding block (1006);

wherein the return springs (1007) are all pressed when the corresponding return slide block (1006) rotates clockwise.

10. A vacuum packaging machine as claimed in claim 2 or 3, characterized in that said drive unit (9) comprises:

the second sliding rail (901) is fixedly installed at the top of the machine body (1) and is arranged below the lower plate (403) at the feeding position;

the rack (902) is slidably mounted on the second sliding rail (901);

the rotating wheel (903) is rotatably arranged at the top of the machine body (1), a first tooth group (904) for transmission with the rack (902) is arranged in three quarters of the peripheral side of the rotating wheel, and the rotating wheel is driven by a first driving motor;

the balance wheel (905) is semicircular, a second tooth set (906) used for being in transmission with the rack (902) is arranged on the arc side, and the straight side is rotatably arranged on the machine body (1) through a pin shaft (909);

the two ends of the tension spring (907) are connected with the top surface of the balance wheel (905) and the top of the machine body (1) and used for applying clockwise tension to the balance wheel (905);

and one end of the shifting rod (908) is fixedly arranged at the top of the pin shaft (909), and the top of the other end of the shifting rod (908) is provided with a shifting block (910) for shifting the far end of the second connecting plate (416).

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