CN211443006U

CN211443006U - Packaging machine

Info

Publication number: CN211443006U
Application number: CN201921638995.9U
Authority: CN
Inventors: 刘红
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-09-27
Filing date: 2019-09-27
Publication date: 2020-09-08
Anticipated expiration: 2029-09-27

Abstract

The utility model discloses a packaging machine, which comprises a frame, wherein a feeding device, a material poking device, a heat sealing device and a packaging bag forming device are arranged on the frame, the frame comprises a workbench, the packaging bag forming device comprises an unreeling mechanism and a bag forming device, and the unreeling mechanism is arranged below the workbench; the bag forming device comprises a forming plate, a positioning pin is arranged on the upper surface of the forming plate, a gap adjusting plate is further arranged on the forming plate, an adjusting groove is formed in the gap adjusting plate, and the positioning pin is sleeved in the adjusting groove. The utility model discloses a place wrapping bag forming device in the below of workstation to the packaging film enters into the bagging apparatus from the below of work, adopts this structure after, more is applicable to and carries out secondary packing to the material of a plurality of independent little packings. Meanwhile, the bag forming machine can meet the requirements of packaging materials with different widths by being formed into a bag.

Description

Packaging machine

Technical Field

The utility model relates to an automatic change equipment, especially automatic packaging equipment of food.

Background

The material packaging machine replaces the traditional manual packaging, has the characteristics of high speed, neat and attractive packaging and the like, saves manpower and improves the production efficiency. In food packaging, the packaging machine can effectively reduce the contact of human bodies to food and increase cleanness and sanitation. In food packaging, reciprocating packaging machines are increasingly used. The common packing machines in the market at present generally include material feeding unit, group material device, wrapping bag forming device, indulge sealing device and violently seal the device. The material is fed from the feeding device, the packaging film is formed in the packaging bag forming device, then the material is pushed into the packaging bag from the feeding device by the material poking device, then the lower bottom surface of the packaging bag is sealed by the longitudinal sealing device, and then the front end and the rear end of the packaging bag are sealed by the transverse sealing device. Thereby completing the packaging of the material.

In the existing packaging machine, packaging films are unreeled from the upper part of a feeding platform and then enter the packaging machine, and the packaging machine with the structure is called as an upper-film-feeding packaging machine. For some foods, the upper film-feeding packaging machine is difficult to meet the production requirement, so that the packaging machine for unreeling the packaging film from the lower part of the feeding platform is needed.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: a film-feeding packaging machine is provided.

The utility model provides a solution of its technical problem is: a packaging machine comprises a rack, wherein a feeding device, a material poking device, a heat sealing device and a packaging bag forming device are arranged on the rack, the rack comprises a workbench, the packaging bag forming device comprises an unreeling mechanism and a bag forming device, and the unreeling mechanism is arranged below the workbench; the bag forming device comprises a bag forming device base, bag forming device moving seats are arranged on the left side and the right side of the bag forming device base, the bag forming device moving seats are connected with the bag forming device base in a sliding mode through a bag forming adjusting mechanism, forming plates are arranged on the bag forming device moving seats, forming arc surfaces are arranged at the front ends of the forming plates, and a shelf is arranged between the two bag forming device moving seats; the forming plate comprises an upper surface, a positioning pin is arranged on the upper surface of the forming plate, a gap adjusting plate is further arranged on the forming plate, an adjusting groove is formed in the gap adjusting plate, and the positioning pin is sleeved in the adjusting groove.

The utility model has the advantages that: the utility model discloses a place wrapping bag forming device in the below of workstation to the packaging film enters into the bagging apparatus from the below of work, then the packaging film folds into the wrapping bag of rectangle in the bagging apparatus, and the upper surface at the shelf is pasted to the lower wall of this wrapping bag, and the lateral surface of profiled sheeting is being pasted to two lateral walls about the wrapping bag, and the upper surface of wrapping bag passes the adjustment tank, then through the outer vertical sealing device of peripheral hardware with the upper surface encapsulation of wrapping bag, thereby form a confined cartridge packing wrapping bag. Then the material enters the material stirring device from a feeding device at the rear part, and then is pushed into the cylindrical packaging bag by the material stirring device, the sealing strip required for heat sealing of the packaging bag is arranged at the upper end of the material, the heat sealing device seals the upper end, the front end and the rear end of the packaging bag, and then the packaging of the material can be completed. After adopting this structure, be more applicable to and carry out secondary packing to a plurality of independent small-size packing's material. Meanwhile, when the movable seat of the bag forming device is adjusted, the two forming plates are driven to be close to or far away from each other, so that the width of the packaging bag can be changed to meet the requirements of packaging materials with different widths; after the distance between the forming plates is changed, the gap through which the upper end of the packaging bag passes can be adjusted through the gap adjusting plate, so that the packaging bag has a better packaging effect when passing through the heat sealing device.

As a further improvement of the above technical solution, the forming plate comprises a side surface, a height adjusting groove is formed in the side surface, an adjusting pin is arranged on the bag former moving seat, and the adjusting pin penetrates through the height adjusting groove; the included angle between the length direction of the height adjusting groove and the horizontal direction is a, the forming arc surface of the forming plate comprises a front inclined surface, the included angle between the front inclined surface and the horizontal direction is b, and the included angle a is the same as the included angle b; the adjusting grooves of the gap adjusting plate are two, the two adjusting grooves are parallel to each other, and the upper surface of the forming plate is also provided with two positioning pins. The height of the formed packaging bag can be adjusted through the height adjusting groove and the adjusting pin.

As a further improvement of the technical scheme, a supporting arm extending outwards is fixedly arranged on the side face of the front end of the forming plate. The packaging film entering the forming plate can be unfolded by a certain entering angle by utilizing the supporting arm, so that the forming quality of the packaging bag is improved.

As a further improvement of the above technical scheme, the material stirring device comprises a material stirring rack, the material stirring rack is fixedly connected with the rack, two side plates are arranged on the material stirring rack, two conveying chains are arranged between the two side plates, a connecting plate is arranged between the two conveying chains, and a material stirring plate is arranged on the connecting plate; be equipped with the mount pad between connecting plate and the conveyor chain, the mount pad is articulated with the conveyor chain, the connecting plate is fixed on the mount pad, dial the material device and still include the linking arm, the middle part of mount pad is articulated with the conveyor chain, the one end of linking arm is articulated with the conveyor chain, and one end is articulated with the one end of mount pad in addition.

The utility model discloses a set up the connecting plate between two conveyor chains, then install the switch-plate on the connecting plate, utilize conveyor chain to drive switch-plate cyclic shift to utilize the switch-plate to dial a plurality of materials. And through increasing the linking arm, utilize the linking arm to make the mount pad more stable when the upset.

As a further improvement of the technical scheme, the material stirring device further comprises a servo motor, a driving wheel is mounted on the side plate, the servo motor is connected with the driving wheel through a driving shaft, the number of the driving wheels is two, and the driving wheel is connected with the conveying chain.

As a further improvement of the above technical scheme, the feeding device comprises a feeding rack, the feeding rack is fixedly connected with the rack, a feeding platform is arranged on the feeding rack, the feeding platform is located in the workbench, feeding chains are arranged on the left side and the right side of the feeding platform, and a plurality of push rods are arranged between the two feeding chains.

The feeding chains are arranged on the two sides of the feeding platform, the plurality of push rods are erected between the two feeding chains, and materials on the feeding platform are pushed by the push rods. Because the length of push rod is greater than feeding platform's width, consequently when the push rod promoted forward, the material homoenergetic that is located feeding platform can be promoted forward, and the material homoenergetic of same row is promoted by same push rod moreover, and the effect of propelling movement is good.

As a further improvement of the above technical scheme, a support guide rail is arranged on the left side and/or the right side of the feeding platform; the support guide rail is used for providing support force for the push rod, so that the gravity of the push rod does not directly act on the chain, and the chain is prevented from being stressed and deformed. The feeding machine frame is also provided with a width adjusting mechanism, and the width adjusting mechanism is arranged on the feeding platform; the width of the feeding channel of the feeding platform is adjusted by the width adjusting mechanism so as to meet the requirement of no material. The feeding channel refers to a space for placing materials in the feeding platform when the materials are arranged side by side in the feeding process, and the maximum width of the feeding channel is equal to the width of the feeding platform.

A movable plate is arranged at the front end of the feeding platform, the feeding chain comprises a corner position, the corner position is located above the movable plate, the rear end of the movable plate is hinged with the feeding rack, and an elastic connecting piece is arranged between the movable plate and the feeding rack; under normal conditions, the movable plate keeps flush with the feeding platform under the action of the elastic connecting piece, so that materials can smoothly transit from the feeding platform to the next procedure. When the push rod needs to move from top to bottom, the push rod passes through the movable plate, the push rod pushes the movable plate to turn over, so that a space is avoided, the push rod passes through the space, and after the push rod passes through the space, the movable plate rebounds under the action of the elastic connecting piece, and materials are prevented from falling into a rack of the packaging machine from the movable plate.

The feeding machine is characterized in that a supporting base is further arranged on the feeding machine frame, the supporting base is fixed below the feeding platform, and the conveying chain is abutted to the upper surface of the supporting base. When the push rod moves below the feeding platform, the support base is utilized to provide support force for the push rod.

As a further improvement of the above technical solution, the heat sealing device includes a longitudinal sealing mechanism and a pre-sealing mechanism, the pre-sealing mechanism is located in front of the longitudinal sealing mechanism, the pre-sealing mechanism includes a pre-sealing base, two heating blocks are mounted on the pre-sealing base, each of the two heating blocks includes a contact surface, the two contact surfaces are against each other, a plurality of vent holes are arranged on the contact surfaces, the pre-sealing mechanism further includes an air supply pipe, and the air supply pipe is communicated with the vent holes; the pre-sealing mechanism further comprises two swing rods, the middle parts of the swing rods are in shaft connection with the base, the heating block is fixed at the bottoms of the swing rods, and the two swing rods are meshed together through gears.

The utility model discloses an increase a mechanism of sealing in advance in the place ahead of traditional indulging the mechanism, utilize the heating piece that seals in advance to preheat the packaging film for the packaging film can encapsulate better after entering into to indulge the mechanism. In order to prevent the packaging film from being adhered to the contact surface of the heating block, the air vent is added on the contact surface, and then the air vent is conducted, so that an air gap is formed between the packaging film and the contact surface of the heating block, and the packaging film can smoothly enter the longitudinal sealing mechanism. And when the packaging machine stops working, the swing rod can be controlled to swing, so that the two heating blocks of the pre-sealing mechanism can be separated from each other, and the heating blocks are prevented from heating the packaging film at all times.

As a further improvement of the above technical solution, the heat sealing device further includes a longitudinal sealing adjustment mechanism, the longitudinal sealing adjustment mechanism is located at the front end of the pre-sealing mechanism, the longitudinal sealing adjustment mechanism includes an adjustment frame, the adjustment frame is fixedly connected to the frame, the adjustment frame is provided with a first longitudinal sealing roller and a second longitudinal sealing roller, the adjustment frame further includes an opening and closing device, the opening and closing device is connected to the first longitudinal sealing roller, the longitudinal sealing adjustment mechanism further includes a swinging device, the swinging device is mounted on the adjustment frame, the second longitudinal sealing roller is mounted on the swinging device, and the swinging device enables the second longitudinal sealing roller to overturn along the front-back direction relative to the first longitudinal sealing roller.

Through increasing indulge and seal adjustment mechanism, change the contact angle who indulges two vertical seal rollers that seal adjustment mechanism for the packaging film has an effort in vertical direction when two vertical seal rollers of process, thereby changes the membrane of eating degree of depth of wrapping bag.

As a further improvement of the technical scheme, the heat sealing device comprises a reciprocating transverse sealing mechanism.

The reciprocating transverse sealing mechanism mainly comprises a port of an outer product package, the port cutting and the sealing are realized through the vertical reciprocating motion of the upper cutter seat and the lower cutter seat, the vertical reciprocating motion of the upper cutter seat and the lower cutter seat is realized by driving a synchronous gear on the cutter seats through a driving motor, the reciprocating packaging machine is especially designed for higher packaging materials, the length of the packaging bag is shorter than that of a common pillow type packaging machine, and the packaged finished product is more compact and more attractive.

Drawings

In order to more clearly illustrate the technical solution in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is clear that the described figures represent only some embodiments of the invention, not all embodiments, and that a person skilled in the art can also derive other designs and figures from these figures without inventive effort.

Fig. 1 is a perspective view of the present invention;

fig. 2 is a front view of the present invention;

FIG. 3 is a schematic perspective view of the bag forming device of the present invention;

FIG. 4 is a front view of the bag former of the present invention;

FIG. 5 is a top view of the bag former of the present invention;

fig. 6 is a schematic structural view of the feeding device of the present invention;

fig. 7 is a schematic view of a partial structure of the feeding device of the present invention;

fig. 8 is a schematic perspective view of the kick-out device of the present invention;

fig. 9 is a schematic perspective view of the pre-sealing mechanism of the present invention;

fig. 10 is a perspective view of the adjusting mechanism of the present invention.

Detailed Description

The conception, the specific structure, and the technical effects produced by the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the features, and the effects of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and other embodiments obtained by those skilled in the art without inventive labor based on the embodiments of the present invention all belong to the protection scope of the present invention. The preferred embodiment of the present invention is shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution. Meanwhile, all technical characteristics in the invention can be interactively combined on the premise of not conflicting with each other.

Referring to fig. 1 to 2, a packaging machine comprises a frame 1, wherein a feeding device 2, a material stirring device 3, a heat sealing device 4 and a packaging bag forming device 5 are arranged on the frame, the frame 1 comprises a workbench 11, the packaging bag forming device 5 comprises an unwinding mechanism 51 and a bag forming device 6, and the unwinding mechanism 51 is arranged below the workbench 11; the bag forming device 6 comprises a bag forming device base 61, bag forming device moving seats 62 are arranged on the left side and the right side of the bag forming device base 61 respectively, the bag forming device moving seats 62 are connected with the bag forming device base 61 in a sliding mode through bag forming adjusting mechanisms 67, each bag forming adjusting mechanism 67 comprises a screw rod 671, a screw hole is formed in each bag forming device moving seat 62, and the screw rods 671 are connected with the screw holes in a threaded mode. The bag forming adjustment mechanism 67 further includes a guide rail 672, and the bag former moving base 62 slides on the guide rail 672. The forming plate 63 is arranged on the bag former moving seat 62, the front end of the forming plate 63 is provided with a forming arc surface, a shelf 64 is arranged between the two bag former moving seats 62, the shelf 64 is placed on the upper surface of the bag former moving seat 62, the two forming plates 63 are positioned on two sides of the shelf 64, the shelf 64 is utilized to support materials, and the shelf 64 is not fixedly connected with the two forming plates 63, so that when the forming plate 63 is adjusted left and right, the shelf 64 is not influenced; the forming plate 63 comprises an upper surface, a positioning pin 631 is arranged on the upper surface of the forming plate, a gap adjusting plate 65 is further arranged on the forming plate 63, an adjusting groove 651 is arranged on the gap adjusting plate 65, and the positioning pin 631 is sleeved in the adjusting groove 651.

Further as a preferred embodiment, the forming plate 63 includes a side surface, a height adjusting slot 632 is provided on the side surface, an adjusting pin 621 is provided on the bag former moving seat 62, and the adjusting pin 621 passes through the height adjusting slot 632; an included angle a between the length direction of the height adjusting groove 632 and the horizontal direction, the forming arc surface of the forming plate 63 comprises a front inclined surface, an included angle b between the front inclined surface and the horizontal direction, and the included angle a is the same as the included angle b; the gap adjusting plate 65 has two adjusting grooves 651, the two adjusting grooves 651 are parallel to each other, and the upper surface of the forming plate 63 is also provided with two positioning pins.

In a further preferred embodiment, the front end of the forming plate 63 is fixed at its side with an outwardly extending arm 66. The gap adjustment plate 65 is further provided with a guide rod 652.

As a further preferable embodiment, the material stirring device 3 includes a material stirring frame 31, the material stirring frame 31 is fixedly connected to the frame 1, two side plates 311 are disposed on the material stirring frame 31, two conveying chains 32 are disposed between the two side plates 311, a connecting plate 33 is disposed between the two conveying chains 32, and a material stirring plate 34 is disposed on the connecting plate 33; be equipped with mount pad 35 between connecting plate 33 and the conveying chain 32, connecting plate 33 is fixed on mount pad 35, dial material device 3 still includes linking arm 36, the middle part and the conveying chain 32 of mount pad 35 are articulated, the one end and the conveying chain 32 of linking arm 36 are articulated, and one end is articulated with the one end of mount pad 35 in addition.

Further as a preferred embodiment, the kick-out device 3 further includes a servo motor 37, the side plate 311 is provided with a driving wheel 312, the servo motor 37 is connected with the driving wheel 312 through a driving shaft, there are two driving wheels 312, and the driving wheel 312 is connected with the conveying chain 32. In operation, the servo motor 37 drives the driving wheel 312 to rotate, the driving wheel 312 drives the conveying chains 32 to move, and the material-shifting plate 34 installed between the two conveying chains 32 moves along with the movement of the conveying chains 32. And because the middle part of mount pad 35 articulates on conveying chain 32, consequently mount pad 35 can take place to overturn relatively conveying chain 32, and the one end of mount pad 35 is articulated with linking arm 36 again, and the other one end of linking arm 36 articulates on conveying chain 32, of course, the articulated position of mount pad 35 and conveying chain 32 is different with the articulated position of linking arm 36 and two 32 of transport, according to the length of linking arm 36, select suitable articulated position can. When the connecting plate 33 transits from the upper part to the lower part of the conveying chain 32, the connecting arm 36 can control the mounting seat 35 to rotate, so that the mounting seat 35 drives the connecting plate 33 to rotate by 180 degrees, and better thrust can be provided when materials are pushed.

In some embodiments, the kickoff stand 31 further includes an adjusting plate 313, the adjusting plate 313 is provided with a longitudinal mounting groove and a transverse connecting groove, and the side plate 311 is fixed on the connecting groove of the adjusting plate 313 through a bolt. And the material poking device 3 can be arranged on the rack 1 through the longitudinal installation groove, so that the installation height of the material poking device 3 can be adjusted.

As a preferred embodiment, the feeding device 2 includes a feeding frame 21, the feeding frame 21 is fixedly connected to the frame 1, a feeding platform 22 is disposed on the feeding frame 21, the feeding platform 22 is located in the working table 11, feeding chains (not shown) are disposed on left and right sides of the feeding platform 22, and a plurality of push rods 23 are disposed between the two feeding chains.

Further as a preferred embodiment, the left side and the right side of the feeding platform 22 are both provided with a support rail 24; the feeding rack 21 is also provided with a width adjusting mechanism 25, and the width adjusting mechanism 25 is installed on the feeding platform 22; a movable plate 26 is arranged at the front end of the feeding platform 22, the feeding chain comprises a corner position, the corner position is located above the movable plate 26, the rear end of the movable plate 26 is hinged with the feeding rack 21, and an elastic connecting piece is arranged between the movable plate 26 and the feeding rack 21; the feeding machine is characterized in that a supporting base is further arranged on the feeding machine frame 21, the supporting base is fixed below the feeding platform, and the feeding chain is abutted to the upper surface of the supporting base.

Further preferably, a buffer table is arranged at the front end of the kick-out stand. The buffer table is located at the rear end of the feeding rack 21. The feeding device 2 sends the materials into the cache table from the feeding platform, and the material shifting device 3 can shift and push the materials of the cache table according to actual production requirements. For example, the material can be pushed by dialing the material once, or the material can be pushed again after the material reaches the buffer platform twice. When the two-time material shifting and pushing is needed, the mounting position of the material shifting device 3 can be adjusted through the adjusting plate 313, so that the starting position of the material shifting plate 34 moves forward, and a plurality of materials can be shifted at one time.

Further as a preferred embodiment, the width adjusting mechanism 25 includes a screw 251, two sliding seats 252 and a cover plate 253, the screw 251 penetrates through the feeding frame 21 from left to right, the two sliding seats 252 are respectively installed at the left and right sides of the feeding platform 22, the sliding seats 252 are in threaded connection with the screw 251, the cover plate 253 is fixed on the sliding seats 252, and the cover plate 253 includes an inner side plate, which is located above the push rod 23. When the screw 251 is rotated, the screw drives the two sliders 252 to move toward or away from each other, so that the cover plate 252 also moves in the left-right direction. The width of the feed channel of the feed platform 22 can be adjusted by means of the inner side plate of the cover plate 253. And the cover 253 is higher than the push rod 23, so that the cover 253 does not affect the operation of the push rod 23 when moving.

Further as a preferred embodiment, the heat sealing device 4 includes a longitudinal sealing mechanism 41 and a pre-sealing mechanism 42, the pre-sealing mechanism 42 is located in front of the longitudinal sealing mechanism 41, the pre-sealing mechanism 42 includes a pre-sealing base 421, two heating blocks 422 are mounted on the pre-sealing base 421, each of the two heating blocks 422 includes a contact surface, the two contact surfaces are abutted against each other, a plurality of vent holes are formed on the contact surfaces, the pre-sealing mechanism 42 further includes an air supply pipe, and the air supply pipe is communicated with the vent holes; the pre-sealing mechanism 42 further comprises two swing rods 423, the middle parts of the swing rods 423 are coupled with the sealing base 421, the heating block 422 is fixed at the bottom parts of the swing rods 423, and the two swing rods 423 are engaged together through gears.

Further, as a preferred embodiment, the heat sealing device 4 further includes a longitudinal sealing adjusting mechanism 43, the longitudinal sealing adjusting mechanism 43 is located at the front end of the pre-sealing mechanism 42, the longitudinal sealing adjusting mechanism 43 includes an adjusting frame 431, the adjusting frame 431 is fixedly connected with the frame 1, the adjusting frame 431 is provided with a first longitudinal sealing roller 432 and a second longitudinal sealing roller 433, the adjusting frame 431 further includes an opening and closing device 434, the opening and closing device 434 is connected with the first longitudinal sealing roller 432, and opening and closing of the two longitudinal sealing rollers can be realized through the opening and closing device 434. The longitudinal sealing adjusting mechanism 43 further includes a swinging device 435, the swinging device 435 is mounted on the adjusting frame 431, the second longitudinal sealing roller 433 is mounted on the swinging device 435, and the swinging device 435 allows the second longitudinal sealing roller 433 to overturn in the front-back direction relative to the first longitudinal sealing roller 432. The swinging device 435 includes an adjusting base 4351 and a support 4352, the support 4352 is fixed on the frame 431, the adjusting base 4351 is connected with the support 4352 through a rotating shaft 4353, the second longitudinal sealing roller 433 is fixedly installed on the adjusting base 4351, and one end of the rotating shaft 4353 is provided with a rotating handle 4354. The adjusting mechanism 43 further comprises a screw 4355, the support 4352 is further provided with a screw hole, the screw 4355 is in threaded connection with the screw hole, the upper end of the screw is hinged to the rotating handle, and the lower end of the screw is provided with a handle.

In the conventional pillow type packaging machine, the outer surfaces of the two heat sealing rollers of the longitudinal sealing mechanism 41 are parallel to each other, so that the packaging film provides a horizontal acting force when passing through the heat sealing rollers, in this embodiment, by adding an adjusting mechanism 43 in front of the longitudinal sealing mechanism 41, the adjusting mechanism 43 enables the second longitudinal sealing roller 433 to overturn forwards and backwards relative to the first longitudinal sealing roller 432 by arranging the second longitudinal sealing roller 433 on the frame 431 through the swinging device 435, while the outer surfaces of the two longitudinal sealing rollers of the adjusting mechanism 43 are not parallel any more due to the overturning of the second longitudinal sealing roller 433, when the second longitudinal sealing roller 433 overturns forwards, the outer surface of the second longitudinal sealing roller 433 is equivalent to incline downwards, when the packaging film passes through the two longitudinal sealing rollers, a downward acting force is generated, so that the film-cutting depth of the packaging film is larger after passing through the longitudinal sealing rollers, after packaging, the packaging bag is more compact with the packaging support inside; on the contrary, when the second longitudinal sealing roller 433 overturns backwards, the outer surface of the second longitudinal sealing roller 433 is equivalent to incline upwards, and the packaging film passes through the two longitudinal sealing rollers and has an upward acting force, so that the film eating depth of the packaging film is reduced after the packaging film passes through the longitudinal sealing rollers.

Further in the preferred embodiment, the heat sealing device 4 includes a reciprocating cross sealing mechanism 44.

While the preferred embodiments of the present invention have been described in detail, it will be understood by those skilled in the art that the invention is not limited to the details of the embodiments shown, but is capable of various modifications and substitutions without departing from the spirit of the invention.

Claims

1. The utility model provides a packaging machine, includes the frame, be equipped with material feeding unit in the frame, dial material device, sealing device and wrapping bag forming device, its characterized in that: the machine frame comprises a workbench, the packaging bag forming device comprises an unreeling mechanism and a bag forming device, and the unreeling mechanism is arranged below the workbench; the bag forming device comprises a bag forming device base, bag forming device moving seats are arranged on the left side and the right side of the bag forming device base, the bag forming device moving seats are connected with the bag forming device base in a sliding mode through a bag forming adjusting mechanism, forming plates are arranged on the bag forming device moving seats, forming arc surfaces are arranged at the front ends of the forming plates, and a shelf is arranged between the two bag forming device moving seats; the forming plate comprises an upper surface, a positioning pin is arranged on the upper surface of the forming plate, a gap adjusting plate is further arranged on the forming plate, an adjusting groove is formed in the gap adjusting plate, and the positioning pin is sleeved in the adjusting groove.

2. The packaging machine of claim 1, wherein: the forming plate comprises a side surface, a height adjusting groove is formed in the side surface, an adjusting pin is arranged on the bag former moving seat, and the adjusting pin penetrates through the height adjusting groove; the included angle between the length direction of the height adjusting groove and the horizontal direction is a, the forming arc surface of the forming plate comprises a front inclined surface, the included angle between the front inclined surface and the horizontal direction is b, and the included angle a is the same as the included angle b; the adjusting grooves of the gap adjusting plate are two, the two adjusting grooves are parallel to each other, and the upper surface of the forming plate is also provided with two positioning pins.

3. The packaging machine of claim 1, wherein: and a supporting arm extending outwards is fixedly arranged on the side surface of the front end of the forming plate.

4. The packaging machine of claim 1, wherein: the material shifting device comprises a material shifting rack, the material shifting rack is fixedly connected with the rack, two side plates are arranged on the material shifting rack, two conveying chains are arranged between the two side plates, a connecting plate is arranged between the two conveying chains, and a material shifting plate is arranged on the connecting plate; be equipped with the mount pad between connecting plate and the conveyor chain, the mount pad is articulated with the conveyor chain, the connecting plate is fixed on the mount pad, dial the material device and still include the linking arm, the middle part of mount pad is articulated with the conveyor chain, the one end of linking arm is articulated with the conveyor chain, and one end is articulated with the one end of mount pad in addition.

5. The packaging machine of claim 4, wherein: the material stirring device further comprises a servo motor, driving wheels are mounted on the side plates, the servo motor is connected with the driving wheels through driving shafts, the number of the driving wheels is two, and the driving wheels are connected with the conveying chain; the front end of the material poking rack is provided with a buffer platform.

6. The packaging machine of claim 1, wherein: the feeding device comprises a feeding rack, the feeding rack is fixedly connected with the rack, a feeding platform is arranged on the feeding rack and is located in the workbench, feeding chains are arranged on the left side and the right side of the feeding platform, and a plurality of push rods are arranged between the feeding chains.

7. The packaging machine of claim 6, wherein: the left side and/or the right side of the feeding platform are/is provided with a supporting guide rail; the feeding machine frame is also provided with a width adjusting mechanism, and the width adjusting mechanism is arranged on the feeding platform; a movable plate is arranged at the front end of the feeding platform, the feeding chain comprises a corner position, the corner position is located above the movable plate, the rear end of the movable plate is hinged with the feeding rack, and an elastic connecting piece is arranged between the movable plate and the feeding rack; the feeding machine is characterized in that a supporting base is further arranged on the feeding machine frame, the supporting base is fixed below the feeding platform, and the feeding chain is abutted to the upper surface of the supporting base.

8. The packaging machine of claim 1, wherein: the heat sealing device comprises a longitudinal sealing mechanism and a pre-sealing mechanism, wherein the pre-sealing mechanism is positioned in front of the longitudinal sealing mechanism and comprises a pre-sealing base, two heating blocks are arranged on the pre-sealing base, both the two heating blocks comprise contact surfaces, the two contact surfaces are mutually abutted, a plurality of vent holes are formed in the contact surfaces, the pre-sealing mechanism further comprises an air supply pipe, and the air supply pipe is communicated with the vent holes; the pre-sealing mechanism further comprises two swing rods, the middle parts of the swing rods are in shaft connection with the pre-sealing base, the heating block is fixed at the bottoms of the swing rods, and the two swing rods are meshed together through gears.

9. The packaging machine of claim 1, wherein: the heat sealing device further comprises a longitudinal sealing adjusting mechanism, the longitudinal sealing adjusting mechanism is located at the front end of the pre-sealing mechanism and comprises an adjusting rack, the adjusting rack is fixedly connected with the rack, a first longitudinal sealing roller and a second longitudinal sealing roller are arranged on the adjusting rack, the adjusting rack further comprises an opening and closing device, the opening and closing device is connected with the first longitudinal sealing roller, the longitudinal sealing adjusting mechanism further comprises a swinging device, the swinging device is installed on the adjusting rack, the second longitudinal sealing roller is installed on the swinging device, and the swinging device enables the second longitudinal sealing roller to overturn along the front-back direction relative to the first longitudinal sealing roller.

10. A packaging machine according to any one of claims 1 to 9, wherein: the heat sealing device comprises a reciprocating transverse sealing mechanism.