CN219750208U - Envelope device and packaging production line - Google Patents

Abstract

The utility model provides a bag sealing device and a packaging production line, and relates to the field of bagging and packaging. The bag sealing device comprises a first film supplying mechanism, a second film supplying mechanism, a forming mechanism, a cutting and cutting mechanism and a vacuum sealing traction mechanism, wherein the first film supplying mechanism and the second film supplying mechanism are positioned on one side of the forming mechanism, and the cutting and cutting mechanism and the vacuum sealing traction mechanism are positioned on the other side of the forming mechanism; the forming mechanism comprises a bag edge heat sealing assembly; the vacuum sealing traction mechanism comprises a vacuumizing assembly, a bag opening heat sealing assembly and a traction assembly. The bag edge heat-sealing assembly in the forming mechanism carries out heat-pressing sealing on the region corresponding to the bag edge on the two layers of film materials, and after the vacuumizing assembly vacuumizes the bag at the head end, the bag opening heat-sealing assembly carries out heat-pressing sealing on the bag opening of the bag, and the cutting and cutting mechanism cuts the bag from other bags, so that the bag is completely formed. The bag forming and the product packaging are automatically completed simultaneously, so that the product packaging process is simplified, and the production efficiency can be improved.

Description

Envelope device and packaging production line

Technical Field

The utility model relates to the field of bagging and packaging, in particular to a bag sealing device and a packaging production line.

Background

The existing bagging and packaging process is often divided into the steps of forming packaging bags, putting products into the packaging bags, vacuumizing the packaging bags and the like, one or more of the steps are finished in a semi-automatic mode, production efficiency is low, the conditions of uneven sealing and air leakage after the products are packaged and packaged are easy to occur, and yield is low.

Disclosure of Invention

In order to solve the problem of low production efficiency of the existing bagging and packaging process, one of the purposes of the utility model is to provide a bag sealing device.

The utility model provides the following technical scheme:

the bag sealing device comprises a first film supplying mechanism, a second film supplying mechanism, a forming mechanism, a cutting and cutting mechanism and a vacuum sealing traction mechanism, wherein the first film supplying mechanism and the second film supplying mechanism are positioned on one side of the forming mechanism, and the cutting and cutting mechanism and the vacuum sealing traction mechanism are positioned on the other side of the forming mechanism;

the forming mechanism comprises a bag edge heat sealing assembly;

the vacuum sealing traction mechanism comprises a vacuumizing assembly, a bag opening heat sealing assembly and a traction assembly.

As a further alternative scheme for the bag sealing device, the vacuumizing assembly is arranged at the traction end of the traction assembly, and comprises a clamping piece and a clamping driving piece;

the clamping pieces are arranged in pairs, at least one clamping piece is arranged at the driving end of the clamping driving piece, an annular sealing gasket is arranged in the clamping area of at least one clamping piece, and a groove is formed in the sealing surface of at least one sealing gasket.

As a further alternative to the bag sealing device, the bag edge heat sealing assembly includes a first heat sealing member and a first heat sealing driving member, the first heat sealing member has two first heat sealing portions parallel to each other and a second heat sealing portion connected to the two first heat sealing portions, the first heat sealing members are arranged in pairs, and at least one of the first heat sealing members is arranged at the driving end of the first heat sealing driving member.

As a further alternative scheme of the bag sealing device, the forming mechanism further comprises a first pressing component and a second pressing component, the first pressing component is located on one side, facing away from the cutting and cutting mechanism, of the bag edge heat sealing component, and the second pressing component is located on the other side of the bag edge heat sealing component.

As a further alternative scheme of the bag sealing device, the forming mechanism further comprises a horizontal sucking and leveling plate, and an adsorption area is arranged on the upper surface of the sucking and leveling plate.

As a further alternative to the bag sealing device, the forming mechanism further comprises a film tensioning assembly, and the film tensioning assembly is located at one side of the bag edge heat sealing assembly, which is away from the cutting and cutting mechanism.

As a further alternative to the bag sealing device, the cutting and cutting mechanism includes a cutting assembly and a bag clamping assembly, and the bag clamping assembly is located at a side of the cutting assembly facing the forming mechanism.

As a further alternative scheme of the bag sealing device, the cutting assembly comprises a cutting knife, a cutting driving piece and a cutting seat, wherein the cutting knife is arranged at the driving end of the cutting driving piece, the cutting seat is provided with a guide groove, and the guide groove is arranged along the driving direction of the cutting driving piece.

As a further alternative to the bag sealing device, the bag sealing device further comprises a material receiving mechanism, and the material receiving mechanism is positioned at one side of the vacuum sealing traction mechanism, which is away from the forming mechanism.

Another object of the utility model is to provide a packaging line.

The utility model provides the following technical scheme:

the packaging production line comprises a feeding device and the bag sealing device, wherein the feeding device is positioned at one side of the forming mechanism, which faces the first film feeding mechanism.

The embodiment of the utility model has the following beneficial effects:

when the bag sealing device works, the first film supplying mechanism and the second film supplying mechanism respectively supply film materials to the forming mechanism. The two layers of film material are used as two sides of the bag, respectively, and the product is placed on the lower layer of film material before the lower layer of film material is fed to the achievement mechanism. The bag edge heat sealing assembly in the forming mechanism carries out heat pressing sealing on the areas corresponding to the bag edges on the two layers of film materials, so that the bag is formed preliminarily. At this time, the product is already in the preliminary formed bags, and the sequentially formed bags are connected in series end to end as a whole. After the vacuumizing assembly in the vacuum sealing traction mechanism vacuumizes the bag at the head end, the bag opening heat-sealing assembly carries out heat-pressing sealing on the bag opening of the bag, so that the sealed package of the product is realized. In addition, the traction assembly pulls the bag to move forward and pass over the cutting and cutting mechanism, and the cutting and cutting mechanism cuts the bag from other bags so as to enable the bag to be completely molded. And the like, the vacuum sealing traction mechanism and the cutting and cutting mechanism vacuumize, seal and cut the bags one by one. The bag forming and the product packaging are automatically completed simultaneously, so that the product packaging process is simplified, and the production efficiency can be improved.

In order to make the above objects, features and advantages of the present utility model more comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 shows a schematic overall structure of a bag sealing device according to an embodiment of the present utility model;

fig. 2 is a schematic structural view of a forming mechanism in a bag sealing device according to an embodiment of the present utility model;

fig. 3 is a schematic structural view of a vacuum sealing traction mechanism in a bag sealing device according to an embodiment of the present utility model;

fig. 4 is a schematic structural view of a cutting mechanism in a bag sealing device according to an embodiment of the present utility model;

fig. 5 shows a schematic structural diagram of a vacuum pumping assembly in a bag sealing device according to an embodiment of the present utility model;

FIG. 6 shows an enlarged schematic view at A in FIG. 5;

fig. 7 is a schematic view showing an overall structure of a packaging line according to an embodiment of the present utility model.

Description of main reference numerals:

10-a bag sealing device; 20-a frame; 30-feeding device; 40-product; 50-film material; 100-a first film supply mechanism; 200-a second film feeding mechanism; 300-forming mechanism; 310-bag edge heat seal assembly; 311-first heat seal; 311 a-heating couple; 312-a first heat seal drive; 320-forming a bracket; 330-a first hold down assembly; 331-a first compression member; 332-a first compression drive; 340-a second hold-down assembly; 341-a second pressing member; 342-a second compression drive; 350-sucking and leveling plate; 360-film tensioning assembly; 361-mount; 362-fixed roller; 363-a movable roller; 364-spring; 400-cutting and cutting mechanism; 410-cutting a bracket; 420-a cutting assembly; 421-cutting blade; 422-cutting the driving member; 423-cutting seat; 424-move down cylinder; 425-up-shift cylinder; 430-a pouch clamping assembly; 431-propulsion cylinder; 432-clamping the bag clamping jaw; 500-vacuum sealing traction mechanism; 510-a vacuum-pumping assembly; 511-a clamp; 511 a-a gasket; 511 b-groove; 512-grip drive; 520-a bag heat seal assembly; 521-second heat seal; 522-a second heat seal drive; 530-a traction assembly; 531-servo motor; 532-pulley set; 533—a traction frame; 600-working platform; 700-a receiving mechanism.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used in the description of the templates herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Example 1

Referring to fig. 1, the present embodiment provides a bag-sealing apparatus 10 for packaging a product 40. The bag sealing device 10 comprises a first film feeding mechanism 100, a second film feeding mechanism 200, a forming mechanism 300, a cutting and cutting mechanism 400 and a vacuum sealing traction mechanism 500, wherein the first film feeding mechanism 100 and the second film feeding mechanism 200 are positioned on one side of the forming mechanism 300, and the cutting and cutting mechanism 400 and the vacuum sealing traction mechanism 500 are positioned on the other side of the forming mechanism 300.

Referring to fig. 2 and 3, the forming mechanism 300 includes a side heat seal assembly 310, and the vacuum sealing pulling mechanism 500 includes a vacuum pump assembly 510, a side heat seal assembly 520, and a pulling assembly 530.

When the envelope device 10 is in operation, the first film supply mechanism 100 and the second film supply mechanism 200 respectively supply the film material 50 to the forming mechanism 300. The two layers of film stock 50 serve as the two sides of the bag, respectively, and the product 40 is placed on the lower layer of film stock 50 before the lower layer of film stock 50 reaches the forming mechanism 300. The bag edge heat seal assembly 310 in the forming mechanism 300 performs a heat press seal on the two layers of film material 50 in the region corresponding to the bag edge to form the bag initially. At this point, the product 40 is already in the initially formed bag and the sequentially formed bags are connected in series end to end. After the vacuumizing assembly 510 in the vacuum sealing traction mechanism 500 vacuumizes the bag at the head end, the bag mouth heat-sealing assembly 520 performs heat-pressing sealing on the bag mouth of the bag, so that the sealed package of the product 40 is realized. In addition, the pulling assembly 530 pulls the bag forward and over the cutoff cutting mechanism 400, and the cutoff cutting mechanism 400 cuts the bag from the other bags to completely shape the bag. Similarly, the vacuum seal pulling mechanism 500 and the cutting and slitting mechanism 400 vacuum, seal, and slit the bag one by one. The bag forming and the product 40 packaging are automatically completed simultaneously, so that the product 40 packaging process is simplified, and the production efficiency can be improved.

Example 2

Referring to fig. 1, the present embodiment provides a bag sealing device 10, and in particular, an automatic packaging and vacuumizing bag sealing device 10 for packaging and sealing a product 40 (such as a mobile phone glass). The envelope device 10 includes a work platform 600, a first film supply mechanism 100, a second film supply mechanism 200, a forming mechanism 300, a cutting and slitting mechanism 400, a vacuum sealing traction mechanism 500, and a receiving mechanism 700.

The working platform 600 is horizontally disposed, and the forming mechanism 300 and the cutting mechanism 400 are both disposed on the working platform 600. The forming mechanism 300, the cutting and slicing mechanism 400, the vacuum sealing traction mechanism 500 and the material receiving mechanism 700 are arranged along a first direction, and are schematically shown in the X direction. The first film feeding mechanism 100 and the second film feeding mechanism 200 are both located at one side of the forming mechanism 300 facing away from the cutting and slicing mechanism 400, the first film feeding mechanism 100 is located above the working platform 600, and the second film feeding mechanism 200 is located below the working platform 600.

Wherein, the first film feeding mechanism 100 feeds the upper layer film material 50, and the second film feeding mechanism 200 feeds the lower layer film material 50. The two layers of film stock 50 are respectively used as two surfaces of the bag, pass through the forming mechanism 300 and the cutting and dividing mechanism 400 along the first direction and extend to the position of the vacuum sealing traction mechanism 500, and the product 40 is placed on the lower layer of film stock 50 before the lower layer of film stock 50 reaches the forming mechanism 300. In the subsequent processing, the vacuum sealing traction mechanism 500 pulls the two-layer film material 50 and the product 40 on the lower-layer film material 50 to move on the working platform 600. When the two layers of film materials 50 pass through the forming mechanism 300, the forming mechanism 300 performs hot-press sealing on the region, corresponding to the edges of the bags, on the two layers of film materials 50, so that the bags are formed preliminarily. On this basis, the vacuum sealing traction mechanism 500 firstly vacuumizes the inside of the bag through the bag opening of the bag, then thermally presses and seals the bag opening of the bag, and simultaneously pulls the bag to move forward and pass through the cutting and dividing mechanism 400, and cuts the bag by cutting and dividing. Finally, the bags are collected by a take-up mechanism 700.

Specifically, the work platform 600 is sequentially divided into a feeding station, a forming station, and a cutting station along the first direction. Accordingly, the molding mechanism 300 is disposed at the molding station and the cutting and slitting mechanism 400 is disposed at the slitting station.

In addition, the lower film material 50 supplied by the second film supplying mechanism 200 passes through the feeding station, the forming station and the cutting station in this order. As the lower film stock 50 passes through the loading station, the product 40 is placed on the lower film stock 50, moving with the lower film stock 50 in the first direction.

Specifically, the first film feeding mechanism 100 and the second film feeding mechanism 200 store a whole roll of film material 50 (e.g., plastic film, etc.) for bag forming, respectively. The film material 50 is unreeled under the traction of the vacuum sealing traction mechanism 500, and a roller can be arranged to adjust the moving path of the film material 50 in the unreeling process.

Referring to fig. 2, in particular, the forming mechanism 300 includes a forming frame 320, a side heat seal assembly 310, a first hold down assembly 330, a second hold down assembly 340, a suction plate 350, and a film tensioning assembly 360. The forming bracket 320 and the suction plate 350 are fixedly connected with the working platform 600, and the bag edge heat seal assembly 310, the first compression assembly 330, the second compression assembly 340 and the film tensioning assembly 360 are arranged on the forming bracket 320.

The bag edge heat sealing assembly 310 is used for performing heat pressing sealing on the region corresponding to the bag edge on the two layers of film materials 50. The first pressing component 330 and the second pressing component 340 are used for tightly attaching and tightening the two layers of film materials 50, and the sucking and flattening plate 350 is used for sucking and flattening the lower layer of film material 50, which is beneficial to improving the heat sealing quality. The film tensioning assembly 360 is used to tension the upper film 50.

The bag edge heat seal assembly 310 is composed of a first heat seal 311 and a first heat seal driving member 312, the first heat seals 311 are arranged in pairs, at least one first heat seal 311 is arranged at the driving end of the first heat seal driving member 312, and the first heat seal driving member 312 is fixedly arranged on the forming bracket 320.

Further, the first heat seal 311 has two first heat seal portions and one second heat seal portion. The two first heat-seal portions are parallel to each other and to the first direction, and are used for heat-press sealing the areas of the two film materials 50 corresponding to the side edges of the bags. The second heat-seal portions are perpendicular to the first heat-seal portions and connect the two first heat-seal portions for heat-press-sealing the regions of the two-sided film material 50 corresponding to the bottom edges of the bag.

In use, one of the first heat seals 311 is located above the two layers of film stock 50 and the other first heat seal 311 is located below the two layers of film stock 50. At least one first heat seal 311 is moved by the first heat seal driving member 312, the two first heat seals 311 are drawn toward each other, and the two film materials 50 in the middle are heat-sealed by pressing, so that the bag is preliminarily formed.

In some embodiments, the first heat seal drivers 312 employ air cylinders and are arranged in pairs. One of the first heat seal driving members 312 is a heat seal pressing cylinder, and the first heat seal member 311 located above the two layers of film material 50 is disposed at the driving end of the heat seal pressing cylinder. The other first heat seal driving member 312 is a heat seal rising cylinder, and the first heat seal member 311 positioned below the two layers of film material 50 is disposed at the driving end of the heat seal rising cylinder. The heat-seal pressing cylinder and the heat-seal rising cylinder are simultaneously operated to drive the two first heat-seal pieces 311 to be simultaneously closed to the two layers of film materials 50.

In some embodiments, the first heat seal 311 is a brass material, and the first heat seal 311 is configured in a square frame. Further, the first heat seal 311 has heating couples 311a embedded in three sides, and is heated by the heating couples 311 a.

Optionally, a temperature sensor is disposed on the first heat seal 311 to detect the temperature of the first heat seal 311, and the temperature is controlled within the temperature range with the best heat seal effect.

The first pressing assembly 330 is located on a side of the bag edge heat seal assembly 310 facing away from the cutting and slitting mechanism 400, and is composed of a first pressing member 331 and a first pressing driving member 332. The first pressing driving member 332 is fixedly disposed on the forming support 320, the first pressing member 331 is disposed at the driving end of the first pressing driving member 332, and the first pressing member 331 is located above the upper film material 50.

Similarly, the second pressing assembly 340 is located on the side of the pouch edge heat seal assembly 310 facing the cut-and-slit mechanism 400, and is composed of a second pressing member 341 and a second pressing driving member 342. The second pressing driving member 342 is fixedly disposed on the forming support 320, the second pressing member 341 is disposed at the driving end of the second pressing driving member 342, and the second pressing member 341 is located above the upper film material 50.

When in use, the first pressing driving member 332 drives the first pressing member 331 to press down, and the second pressing driving member 342 drives the second pressing member 341 to press down, so that the two layers of film materials 50 located in the middle of the two first heat sealing members 311 are tightly adhered together, and the two layers of film materials 50 are tightly stretched. On this basis, when the first heat sealing piece 311 performs heat-press sealing on the two layers of film materials 50, the sealing is more uniform, and the condition that sealing folds leak air can not occur, thereby being beneficial to improving the heat sealing quality.

In some embodiments, the first compression drive 332 and the second compression drive 342 each employ an air cylinder. The first pressing member 331 is a cylinder, and is rotatably connected to the driving end of the first pressing driving member 332. The rollers are in flexible contact with the upper film material 50 during the pressing process, and can adapt to products 40 with different heights.

The suction plate 350 is horizontally arranged and is positioned on the inner periphery of the first heat sealing piece 311 below the two layers of film materials 50, and an adsorption area is arranged on the upper surface of the suction plate 350.

When the film material 50 carrying the product 40 moves to the forming station, the lower film material 50 is sucked and fixed by the sucking and sucking plate 350, so that the lower film material 50 is prevented from floating, the lower film material 50 is kept flat, the bag is formed neatly, and the heat sealing quality is improved.

In some embodiments, the upper surface of the suction plate 350 is provided with a plurality of mutually perpendicular and staggered suction grooves 511b, and the suction grooves 511b are communicated with a vacuum generator to form a suction area.

The film tensioning assembly 360 is located on one side of the bag edge heat sealing assembly 310 facing away from the cutting and slitting mechanism 400 and above the first pressing assembly 330, and the film tensioning assembly 360 is composed of a mounting seat 361, a fixed roller 362, a movable roller 363 and a spring 364.

Wherein, mount 361 is fixedly connected with molding bracket 320. The fixed roller 362 and the movable roller 363 are parallel to each other and rotatably provided on the mount 361, and the movable roller 363 is slidably fitted to the mount 361 in the direction of the connecting line between itself and the fixed roller 362. One end of the spring 364 is connected to the roller shaft of the movable roller 363, and the other end is connected to the mount 361.

In use, the upper layer film material 50 unwound by the first film supply mechanism 100 passes between the fixed roller 362 and the movable roller 363 and is in close contact with the movable roller 363. When the tension on the upper film 50 decreases, the pressure from the upper film 50 applied by the movable roller 363 decreases, and the spring 364 urges the movable roller 363 toward the fixed roller 362, so that the upper film 50 is kept tensioned. When the tension on the upper film material 50 increases, the pressure from the upper film material 50 applied by the movable roller 363 increases, so that the upper film material 50 is properly loosened by overcoming the elastic force of the spring 364 and keeping away from the fixed roller 362, and the upper film material 50 is prevented from being damaged due to the excessive tension.

Referring to fig. 4, in particular, the cutting and slitting mechanism 400 includes a cutting bracket 410, a cutting assembly 420, and a pouch clamping assembly 430. The cutting bracket 410 is fixedly connected with the working platform 600, the cutting assembly 420 and the bag clamping assembly 430 are both arranged on the cutting bracket 410, and the bag clamping assembly 430 is positioned on one side of the cutting assembly 420 facing the forming mechanism 300.

The two layers of film material 50 are processed by the forming mechanism 300 to form a plurality of bags which are connected in series end to end, and each bag moves forward along the first direction under the traction of the vacuum sealing traction mechanism 500. After the bag at the head passes over the cutting mechanism 400, the bag clamping assembly 430 clamps the second bag and the cutting assembly 420 separates the bag at the head from the remaining bags. At this time, the original second bag becomes the head end bag, and is clamped and fixed by the clamping bag assembly 430, so that the second bag cannot retract, and the second bag waits for the vacuum sealing traction mechanism 500 to reset and then to be pulled.

The cutting assembly 420 is composed of a cutting blade 421, a cutting driving member 422, and a cutting seat 423. The cutting driving piece 422 and the cutting knife 421 are located above the bag, the cutting driving piece 422 is arranged on the cutting bracket 410, and the cutting knife 421 is arranged at the driving end of the cutting driving piece 422. The cutting seat 423 is located below the bag, and the cutting seat 423 is disposed on the cutting bracket 410 and opposite to the cutting blade 421. The cutting seat 423 has a guide groove 511b on a surface facing the cutting blade 421, and the guide groove 511b is provided along a driving direction of the cutting driving member 422.

In use, the cutting drive 422 drives the cutting blade 421 in the second direction to move within the guide slot 511b to cut the bag. In the cutting process, the cutting seat 423 supports the bag, so that the cutting knife 421 and the bag can stably have a force, the bag can be cut by the cutting knife 421, and the guiding groove 511b keeps away the cutting knife 421.

The second direction is the width direction of the bag, and is perpendicular to the first direction, and is schematically indicated by the Y direction in the figure.

In some embodiments, the cutting drive 422 employs an air cylinder.

Optionally, the cutting assembly 420 further includes a downshifting cylinder 424 and an upshifting cylinder 425. The downward moving cylinder 424 and the upward moving cylinder 425 are fixedly connected with the cutting bracket 410, the cutting driving piece 422 is fixedly arranged at the driving end of the downward moving cylinder 424, and the cutting seat 423 is fixedly arranged at the driving end of the upward moving cylinder 425.

When the bag needs to be cut, the downward moving cylinder 424 drives the cutting driving piece 422 and the cutting knife 421 to move downward, and the upward moving cylinder 425 drives the cutting seat 423 to move upward, so that the knife edge of the cutting knife 421 is embedded into the guide groove 511b. After the cutting is finished, the downward moving air cylinder 424 drives the cutting driving piece 422 and the cutting knife 421 to move upwards for resetting, and the upward moving air cylinder 425 drives the cutting seat 423 to move downwards for resetting, so that the vacuum sealing traction mechanism 500 is convenient for traction of the bag.

The bag clamping assembly 430 is composed of a pushing cylinder 431 and a bag clamping jaw 432, and the pushing cylinder 431 and the bag clamping jaw 432 are disposed in pairs on both sides of the bag in the second direction. The pushing cylinder 431 is fixedly arranged on the cutting bracket 410, and the bag clamping jaw 432 is arranged at the driving end of the pushing cylinder 431.

In use, the bag gripping jaw 432 is driven by the propulsion cylinder 431 to move in a second direction towards the bag and then grip the bag.

Referring specifically to fig. 3, vacuum seal traction mechanism 500 includes an evacuation assembly 510, a bag heat seal assembly 520, and a traction assembly 530. Wherein both the evacuation assembly 510 and the bag heat seal assembly 520 are disposed at the pulling end of the pulling assembly 530.

Referring to fig. 5 and 6, the vacuum pumping unit 510 is composed of a clamping member 511 and a clamping driving member 512. The holders 511 are arranged in pairs, with one holder 511 being located above the bag and the other holder 511 being located below the bag. In addition, at least one clamping member 511 is disposed on the driving end of the clamping driving member 512, and the clamping driving member 512 is fixedly disposed on the traction end of the traction assembly 530. An annular gasket 511a is provided in the clamping area of at least one clamping member 511, and a groove 511b is provided on the sealing surface of at least one gasket 511 a.

Wherein, the inner periphery of the sealing pad 511a forms a cavity for vacuumizing, and the cavity is communicated with an external vacuum generator through a pipeline. A groove 511b provided on the sealing surface communicates the cavity with the outside of the gasket 511 a.

In use, the at least one gripping member 511 is moved towards the bag by the gripping drive member 512. The two clamping members 511 cooperate to clamp the bag at the head end and to position the mouth of the bag in the cavity.

In one aspect, the grip 511 and grip drive 512 move with the pulling end of the pulling assembly 530, and are capable of pulling the bag in a first direction.

On the other hand, since the sealing surface of the gasket 511a is provided with the groove 511b communicating the cavity with the outside of the gasket 511a, the mouth of the bag can be prevented from being completely closed by the two clamps 511. When the external vacuum generator evacuates the cavity, the air inside the bag can be evacuated through the slot 511b, thereby evacuating the bag.

In some embodiments, the clamping driving members 512 are cylinders, and the clamping driving members 512 are disposed in pairs to respectively drive the two clamping members 511. In addition, sealing gaskets 511a are arranged in the clamping areas of the two clamping pieces 511, and densely arranged grooves 511b are arranged on the sealing gaskets 511a of the clamping pieces 511 above the bags.

Referring again to fig. 3, the bag heat seal assembly 520 is comprised of a second heat seal 521 and a second heat seal driver 522. The second heat seal driver 522 is fixedly attached to the pulling end of the pulling assembly 530 and is positioned above the bag, and the second heat seal 521 is fixedly disposed on the driving end of the second heat seal driver 522. Accordingly, the holder 511 located below the bag is provided with a groove 511b which mates with the second heat seal 521.

When the vacuumizing assembly 510 vacuumizes the bag, the second heat-seal driving member 522 drives the second heat-seal member 521 to move downward, so as to press the mouth portion of the bag into the groove 511b, and heat-seal the mouth of the bag, thereby realizing the sealed package of the product 40.

In some embodiments, the second heat seal driver 522 employs an air cylinder and the second heat seal 521 is a brass material.

The traction assembly 530 is comprised of a servo motor 531, a pulley set 532, and a traction frame 533. The output end of the servo motor 531 is connected with a belt pulley in a belt pulley set 532, and a belt in the belt pulley set 532 is connected with a traction frame 533. The pulling frame 533 serves as a pulling end of the pulling assembly 530, and both the vacuum assembly 510 and the bag heat seal assembly 520 are disposed on the pulling frame 533.

In use, the servo motor 531 drives the pulley to rotate, which in turn drives the traction frame 533 to move in a first direction via the belt.

With the clamping member 511 in the evacuation assembly 510 clamping the bag at the head end, the pulling assembly 530 moves the evacuation assembly 510 in a first direction, which is capable of pulling the formed bag and the unformed film stock 50 in translation in the first direction, and powering the transport of the film stock 50.

In short, when the above-mentioned bag sealing device 10 is operated, the first film feeding mechanism 100 feeds the upper film material 50, and the second film feeding mechanism 200 feeds the lower film material 50. As the lower film stock 50 passes through the loading station, the product 40 is placed on the lower film stock 50, moving with the lower film stock 50 in the first direction. The bag edge heat seal assembly 310 in the forming mechanism 300 performs heat press sealing on the two layers of film material 50 in the area corresponding to the bag edge, so that the bags are formed preliminarily, and the heads and the tails of the bags formed preliminarily are connected in series. The vacuum assembly 510 in the vacuum seal pulling mechanism 500 clamps the bag at the head end and the pulling assembly 530 pulls each bag in a first direction through the vacuum assembly 510. During the moving process, the vacuum pumping assembly 510 is used for vacuumizing the bag at the head end, and then the bag heat sealing assembly 520 is used for sealing the bag at the head end. When the bag at the head end passes over the cutting and dividing mechanism 400, the traction assembly 530 stops moving, and the cutting assembly 420 in the cutting and dividing mechanism 400 divides the bag from other bags, so that the bag is completely formed. The evacuation assembly 510 releases the fully formed bag and then resets to the trim cut mechanism 400 to pinch the remaining bag and continues to be pulled by the pulling assembly 530. The fully formed bags are then collected by the receiving mechanism 700.

Similarly, the vacuum seal pulling mechanism 500 and the cutting and slitting mechanism 400 vacuum, seal, and slit the bag one by one. The bag forming and the product 40 packaging are automatically completed simultaneously, so that the secondary forming processing of the bag is saved, only the original plastic film for bag forming is needed, the film supplementing times are small, the supplementing speed is high, the product 40 packaging process is simplified, and the production efficiency can be improved. In this process, the pulling component 530 pulls the bag through the vacuumizing component 510 to move, so that the film material 50 can be straightened and tensioned, the toughness of the formed film of the bag can be increased, and the forming quality of the bag can be improved.

Referring to fig. 7, the present embodiment further provides a packaging production line, which includes a frame 20, a feeding device 30, and the above-mentioned bag sealing device 10. Wherein, the feeding device 30 and the bag sealing device 10 are both arranged on the frame 20, and the feeding device 30 is positioned at one side of the forming mechanism 300 facing the first film feeding mechanism 100, and the feeding device 30 is used for placing the product 40 on the lower film material 50 when the lower film material 50 passes through the feeding station.

Optionally, the bag sealing devices 10 are arranged in pairs, forming a double station packaging line.

Any particular values in all examples shown and described herein are to be construed as merely illustrative and not a limitation, and thus other examples of exemplary embodiments may have different values.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

The above examples merely represent a few embodiments of the present utility model, which are described in more detail and are not to be construed as limiting the scope of the present utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model.

Claims (10)

1. The bag sealing device is characterized by comprising a first film feeding mechanism (100), a second film feeding mechanism (200), a forming mechanism (300), a cutting and cutting mechanism (400) and a vacuum sealing traction mechanism (500), wherein the first film feeding mechanism (100) and the second film feeding mechanism (200) are positioned on one side of the forming mechanism (300), and the cutting and cutting mechanism (400) and the vacuum sealing traction mechanism (500) are positioned on the other side of the forming mechanism (300);

the forming mechanism (300) comprises a bag edge heat seal assembly (310);

the vacuum seal traction mechanism (500) comprises a vacuumizing assembly (510), a bag opening heat sealing assembly (520) and a traction assembly (530).

2. The bag closure device according to claim 1, wherein the evacuation assembly (510) is arranged at a pulling end of the pulling assembly (530), the evacuation assembly (510) comprising a clamping member (511) and a clamping drive member (512);

the clamping pieces (511) are arranged in pairs, at least one clamping piece (511) is arranged at the driving end of the clamping driving piece (512), an annular sealing gasket (511 a) is arranged in the clamping area of at least one clamping piece (511), and a groove (511 b) is formed in the sealing surface of at least one sealing gasket (511 a).

3. The bag sealer of claim 1 wherein the bag side heat seal assembly (310) comprises a first heat seal (311) and a first heat seal drive (312), the first heat seal (311) having two first heat seals parallel to each other and a second heat seal connecting the two first heat seals, the first heat seals (311) being arranged in pairs, at least one of the first heat seals (311) being disposed at a drive end of the first heat seal drive (312).

4. A bag sealer as claimed in claim 1, 2 or 3, wherein the forming mechanism (300) further comprises a first compression assembly (330) and a second compression assembly (340), the first compression assembly (330) being located on one side of the bag side heat seal assembly (310) facing away from the cut-out cutter mechanism (400), the second compression assembly (340) being located on the other side of the bag side heat seal assembly (310).

5. A bag-sealing arrangement according to claim 1, 2 or 3, characterized in that the forming means (300) further comprises a horizontal suction plate (350), the upper surface of the suction plate (350) being provided with suction areas.

6. A bag sealer as claimed in claim 1, 2 or 3, wherein the forming mechanism (300) further comprises a film tensioning assembly (360), the film tensioning assembly (360) being located on a side of the bag side heat seal assembly (310) facing away from the cut-out cutting mechanism (400).

7. A bag closure device according to claim 1, 2 or 3, wherein the cutting and slitting mechanism (400) comprises a cutting assembly (420) and a bag clamping assembly (430), the bag clamping assembly (430) being located on a side of the cutting assembly (420) facing the forming mechanism (300).

8. The bag sealing device according to claim 7, wherein the cutting assembly (420) comprises a cutting knife (421), a cutting driving piece (422) and a cutting seat (423), the cutting knife (421) is arranged at the driving end of the cutting driving piece (422), the cutting seat (423) is provided with a guide groove (511 b), and the guide groove (511 b) is arranged along the driving direction of the cutting driving piece (422).

9. The bag closure apparatus according to claim 1, wherein the bag closure apparatus (10) further comprises a receiving means (700), the receiving means (700) being located on a side of the vacuum sealing traction means (500) facing away from the forming means (300).

10. A packaging line, characterized by comprising a feeding device (30) and a bag closure device (10) according to any of claims 1-9, the feeding device (30) being located on the side of the forming mechanism (300) facing the first film feeding mechanism (100).