CN112249432B

CN112249432B - Opening device, film sealing and packaging machine and film sealing and packaging method

Info

Publication number: CN112249432B
Application number: CN202011223393.4A
Authority: CN
Inventors: 吴沐台; 李炎球; 颜均华; 孙晓武; 武才春
Original assignee: Guangdong Siweike Technology Co ltd
Current assignee: Guangdong Siweike Technology Co ltd
Priority date: 2020-11-05
Filing date: 2020-11-05
Publication date: 2022-04-01
Anticipated expiration: 2040-11-05
Also published as: CN112249432A

Abstract

The invention discloses an opening device, a film sealing packaging machine and a film sealing packaging method, which comprise a first substrate, an opening seat penetrating the center of the first substrate and a film passing assembly arranged around the opening seat, wherein an upward convex bag pre-opening plate is clamped at the top of the opening seat, a roller train is arranged on the periphery of the opening seat, a bag opening and closing sheet is connected to the bottom of the opening seat through a torsion spring, and the film passing assembly is matched with the roller train to enable a packaging film to be supported out of a square opening. The invention has compact structure and small occupied space, and effectively avoids the risk of foreign matters entering the bag by adopting a vertical packaging structure, and has good film sealing effect.

Description

Opening device, film sealing and packaging machine and film sealing and packaging method

Technical Field

The invention relates to the technical field of plastic cup packaging equipment, in particular to an opening device, a film sealing packaging machine and a film sealing packaging method.

Background

With the continuous improvement of the living standard of people, the demand of various convenient foods is increased, which further pulls the rapid development of the food packaging industry in China.

The film sealing package for cans, cylinders and irregular foods in the market at present adopts the following two modes: one method is to manually bag, then manually fill inert gas and finally manually seal the membrane, and the method needs a plurality of operators to simultaneously bag, fill and seal the membrane, so that the working efficiency is extremely low, the consistency is poor, and the mass production and processing are difficult to carry out; the other type is a pillow type packaging machine, and the device occupies a large space, has large limitation on film materials, and cannot realize PE material film sealing. In addition, pillow type packagine machine is trilateral membrane of sealing, and the fold appears easily in the product after sealing the membrane, influences product appearance, also perhaps appears sealing the insecure condition of membrane mouth, and when needs inflated in toward the wrapping bag, the membrane structure that seals the membrane of the trilateral membrane of pillow type packagine machine can't reach the filling effect simultaneously.

Therefore, the development of a packaging machine which is efficient, compact, and low-cost, and can perform automatic bag opening and filling with inert gas is urgently needed.

Disclosure of Invention

The present invention is directed to solving the above problems and providing an opening device.

The present invention also aims to provide a film sealing and packaging machine including the opening device.

The present invention is also directed to a film sealing and packaging method performed by the film sealing and packaging machine.

The technical scheme adopted by the invention for realizing the purpose is as follows:

the utility model provides an opening device, includes first base plate, runs through the opening seat that sets up in this first base plate central authorities and centers on the membrane assembly that sets up all around the opening seat, the card is equipped with the bellied bag board of opening in advance that makes progress in opening seat top, is provided with the roller train around this opening seat along being provided with, has the bag piece that opens and shuts through torsional spring coupling in this opening seat bottom, the membrane assembly that crosses with the roller train cooperation makes the packaging film prop out square opening.

Preferably, the opening seat comprises a first top wall and a first side wall connected to the periphery of the top wall, a clamping groove is transversely formed in the first top wall, plate taking grooves are formed in the first top wall and communicated with the clamping groove at intervals for conveniently taking out the pre-opened bag plate, an installation groove is formed in the first side wall in a concave mode towards the opening seat, the pre-opened bag plate is arranged in the clamping groove, and the roller set is arranged in the installation groove;

the roller group comprises supporting ribs which are connected in the mounting groove and are arranged in pairs up and down in parallel, a rotating shaft which penetrates through the supporting ribs and a first wheel which is sleeved on the rotating shaft;

the bag opening and closing piece is positioned between the first side walls at the two opposite ends of the opening seat and extends back to the opening seat, the bag opening and closing piece comprises a first opening and closing piece and a second opening and closing piece which are hinged to the bottom of the opening seat through the torsion spring, the first opening and closing piece and the second opening and closing piece are arranged in a splayed structure, and the opening distance between the first opening and closing piece and the second opening and closing piece is larger than the distance between the first side walls at the two opposite ends of the opening seat.

Preferably, the membrane crossing assembly comprises a membrane crossing cylinder, a first connecting piece connected to one end of the membrane crossing cylinder in a sliding manner and a membrane pressing base fixed to one end of the opening base, wherein one end of the membrane crossing cylinder is transversely provided with a first sliding groove, a first sliding block is arranged in the first sliding groove in a sliding fit manner, the first sliding block is fixed to the first connecting piece, a cylinder shaft of the membrane crossing cylinder is back to the first connecting piece, one end of the membrane pressing base is connected with the membrane pressing base, and the membrane pressing base comprises a second wheel corresponding to the second wheel arranged between the two first wheels of the roller set.

The utility model provides a seal membrane packagine machine, is including supplying membrane device, being located this above-mentioned opening device who supplies membrane device one side, being located the relative both sides of this opening device and being close to the draw membrane device of this opening device bottom, set up in this draw the material handling device of membrane device one side and correspond draw membrane device and have the membrane device of sealing of vertical pillar, supply membrane device through be banded seal membrane with opening device connects draw and remove and be provided with the material loading mouth on the board between membrane device, the material handling device.

Preferably, the film drawing device comprises a first moving mechanism which is arranged at a distance from the vertical support column and is arranged longitudinally, a first moving seat which is connected with a second sliding block of the first moving mechanism, a first air cylinder which is fixed on the first moving seat, a film clamping air cylinder which is connected with an air cylinder shaft of the first air cylinder, a first clamping block which is fixed at one end of the film clamping air cylinder close to the opening device and a second clamping block which is connected with a third sliding block of the film clamping air cylinder, the opening device is fixed on the first moving mechanism, the cylinder shaft of the first cylinder is arranged towards the opening device, the first clamping block is close to one end of the opening device and extends towards the opening device in a bending mode, the second clamping block is close to one end of the first clamping block and extends towards the opening device in a bending mode, and transverse ribs are transversely arranged on the contact surface of the second clamping block and the first clamping block.

Preferably, be provided with the material transporting device in the board, and be provided with the liftout device corresponding to material transporting device end, material loading mouth, the material transporting device includes second moving mechanism, connects the second on this second moving mechanism's fourth slider and sets up the screens that are used for fixed plastic cup on this second moving seat, the liftout device includes third moving mechanism, connects the third on this third moving mechanism's fifth slider and removes the seat and connect the liftout portion that is used for jack-up plastic cup on this third moving seat, works as when the second removes the seat and removes to just facing the position of material loading mouth, liftout portion with screens, the axis of material loading mouth overlaps.

Preferably, bag expanding devices are arranged around the feeding port at intervals, each bag expanding device comprises a second cylinder and a third cylinder, the second cylinder is longitudinally fixed on the machine table, the third cylinder is connected to the cylinder shaft of the second cylinder, the cylinder shaft of the second cylinder faces the opening device and penetrates through the machine table, the cylinder shaft of the third cylinder faces the feeding port, a third moving seat is connected to the cylinder shaft of the third cylinder, a bag expanding plate is connected to the third moving seat, one end, close to the feeding port, of the bag expanding plate bends and extends towards the opening device to form a bending portion, an air duct is formed in the bending portion, an air inlet communicated with the air duct is formed in the side wall of the bending portion, and an air outlet communicated with the air duct is formed in the top of the bending portion.

Preferably, the material moving device includes a fourth moving mechanism, a fourth moving seat connected to a sixth sliding block of the fourth moving mechanism, a fourth cylinder provided on the fourth moving seat, a fifth moving seat connected to the fourth cylinder, a double-head cylinder provided on the fifth moving seat, and clasping blocks respectively connected to cylinder shafts of the double-head cylinder, a support frame provided in parallel on the fourth moving seat, a first guide rail provided at one end of the support frame facing the opening device, a seventh sliding block provided on the first guide rail in sliding fit, and the seventh sliding block connected to the fifth moving seat.

Preferably, the film sealing device comprises a fixed seat, an eighth cylinder, a sixth moving seat and a film sealing lug, the fixed seat is oppositely arranged on the vertical strut and the first moving mechanism, the eighth cylinder is fixed on the fixed seat, a cylinder shaft of the eighth cylinder is arranged towards the opening device, the sixth moving seat is connected to the cylinder shaft of the eighth cylinder, the film sealing lug is connected to the sixth moving seat, and a heating pipe transversely penetrates through the film sealing lug;

the film cutting cylinder is arranged on the fixing seat at the upper end of the vertical support and located above the eighth cylinder, the cylinder shaft of the film cutting cylinder faces the opening device, and the cylinder shaft of the film cutting cylinder is connected with a cutter.

The film sealing and packaging method implemented by the film sealing and packaging machine comprises the following steps:

installing the sealing film into the film supply device, and pulling the head end of the sealing film onto the opening device for opening, so that the head end of the sealing film forms a square opening;

the film pulling device clamps the sealing film with the square opening and moves downwards until the head end of the sealing film with the square opening reaches the position of the feeding port;

the plastic cup enters the sealing film through the feeding port, the material moving device moves to the feeding port, and the plastic cup and the sealing film are tightly held together;

the film sealing device is started, the sealing film at the upper end is cut off, and then the sealing film is heated;

the material carrying device holds the packaged plastic cup tightly and moves to a blanking position for blanking.

The invention has the beneficial effects that: the invention is an integrated machine for opening bags, sealing films and packaging, which realizes the purposes of automatically opening bags of a cylindrical film, automatically filling a product into the bag, automatically filling nitrogen or ozone, and finally automatically sealing and discharging the bag; in addition, the film sealing and packaging machine has low operation noise and low operation cost, and can meet the requirement of large-batch product packaging.

The invention is further described with reference to the following figures and examples.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

FIG. 1 is a schematic structural diagram A of an opening device according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram B of an opening device according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a film sealing and packaging machine according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of an opening device and a film drawing device according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a material conveying device, a material conveying device and a material ejecting device provided in the embodiment of the present invention;

fig. 6 is a schematic structural diagram of one of the film sealing devices according to the embodiment of the present invention.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "first", "second" and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the description of the present invention, it should be understood that 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 connected" to another element, there are no intervening elements present.

Referring to fig. 1 to 2, in an alternative embodiment, the opening device includes a first substrate, an opening seat 1 penetrating through the center of the first substrate, and a membrane assembly 2 surrounding the opening seat 1, wherein a bag pre-opening plate 11 protruding upward is clamped at the top of the opening seat 1, a roller set 12 is arranged along the periphery of the opening seat 1, a bag opening and closing sheet 13 is connected to the bottom of the opening seat 1 through a torsion spring, and the membrane assembly 2 cooperates with the roller set 12 to support a packaging membrane to form a square opening.

When the film bag is used for the first time, the film bag is pulled to the position of the opening seat 1, the film bag is opened, the bag pre-opening plate 11 extends into the film bag, and the film bag is driven by the film passing component 2 and is transferred downwards, and the film bag is matched with the roller set 12 through the film passing component 2, so that the film bag can keep the opening state continuously.

Specifically, because the quality of the cylinder film is very light, and the cylinder film after opening is easy to be attached, in order to avoid the situation, the opening device is provided with the membrane passing assembly 2 around the opening seat 1, so as to be used for clamping one surface of the cylinder film in cooperation with the roller group 12, meanwhile, the membrane passing assembly 2 comprises four membrane passing cylinders, and the four membrane passing cylinders can press four surfaces of the cylinder film, so that the square opening of the cylinder film can be effectively kept, the square opening of the cylinder film is ensured to be always in an open state during packaging, a plastic cup can enter the cylinder film for packaging, the packaging efficiency and the packaging quality are improved, and the situation that the cylinder film is overlapped is avoided;

in addition, the bag opening and closing piece 13 arranged at the bottom of the opening seat 1 is used for expanding the distance between the two opposite ends of the tube film, so that the tube film is prevented from being attached again after passing through the film assembly 2, the packaging quality and the packaging efficiency of the tube film are ensured, the overlapping of the tube film is effectively avoided, the bag opening and closing piece 13 is hinged together through a torsion spring, and the elasticity of the torsion spring can support the bag opening and closing piece 13, so that the opening of the tube film is always kept in an opening state.

Referring to fig. 1 to 2, in another alternative embodiment of the opening device, the opening seat 1 includes a first top wall and a first side wall connected to the periphery of the top wall, the first top wall is transversely provided with a clamping groove 111, the first top wall is provided with plate taking grooves 112 communicated with the clamping groove 111 at intervals for conveniently taking out the pre-opened bag plate 11, the first side wall is provided with an installation groove 113 recessed toward the opening seat 1, the pre-opened bag plate 11 is clamped in the clamping groove 111, and the roller set 12 is arranged in the installation groove 113;

specifically, the clamping groove 111 is used for fixing the pre-opening bag plate 11, so that the pre-opening bag plate 11 cannot deviate from the center randomly in the bag opening process, the pre-opening bag plate 11 has certain rigidity, so that the pre-opening bag plate 11 cannot be bent in the opening process, and a light-weight groove is arranged in the middle of the pre-opening bag plate 11 and is used for reducing the weight of the pre-opening bag plate 11, facilitating the lifting of the pre-opening bag plate 11 and facilitating the replacement of the pre-opening bag plate 11;

in addition, mounting groove 113 in opening seat 1 provides an inside sunken position for wheel train 12, makes opening seat 1's overall structure seem compacter to when making the section of thick bamboo membrane through opening seat 1, the section of thick bamboo membrane can more laminate opening seat 1's first lateral wall, makes section of thick bamboo membrane can not excessive outer expanding tensile deformation, guarantees the quality of section of thick bamboo membrane, and then guarantees plastic cup packaging quality.

The roller group 12 includes a pair of support ribs 121 connected to the mounting groove 113 and arranged in pairs up and down, a rotating shaft penetrating the pair of support ribs 121, and a first wheel 122 sleeved on the rotating shaft;

specifically, a pair of support ribs 121 has two, totally two pairs of support ribs 121, each pair of support ribs 121 goes through the pivot, and the cover is equipped with first wheel 122 in the pivot, support ribs 121 are used for supporting the wheel, play and connect and make first wheel 122 move pivoted effect smoothly, and two first wheels 122 interval settings, make and have certain space clearance between two first wheels 122, and this space clearance cooperates with the second wheel on the pressure membrane seat, when the section of thick bamboo membrane passes through pressure membrane seat and roller train 12, the skew can not appear in the section of thick bamboo membrane, overlap the circumstances such as, make the section of thick bamboo membrane smoothly transfer downwards, further protect the section of thick bamboo membrane not damaged.

In addition, the opening seat 1 penetrates through the first base plate, two rolling shafts are connected to the lower surface of the first base plate, and the rolling shafts are arranged close to the side wall of the lower end of the opening seat 1 and used for enabling the cylinder film to be transferred downwards, improving the smoothness of transferring the cylinder film and ensuring that the cylinder film cannot be excessively pulled and deformed.

The bag opening and closing sheet 13 is located between the first side walls at the two opposite ends of the opening seat 1 and extends back to the opening seat 1, the bag opening and closing sheet 13 comprises a first opening and closing sheet and a second opening and closing sheet which are hinged to the bottom of the opening seat 1 through the torsion spring, the first opening and closing sheet and the second opening and closing sheet are arranged in a splayed structure, and the opening distance between the first opening and closing sheet and the second opening and closing sheet is larger than the distance between the first side walls at the two opposite ends of the opening seat 1.

Specifically, the length of opening bag and opening piece 13 is unanimous with the length of opening seat 1 to opening bag and opening piece 13 lower extreme is buckled a little inwards, makes first piece, the second lateral surface lower extreme that closes the piece of opening, and the piece is closed to the second, and when the section of thick bamboo membrane closed the piece through first piece, the second, the section of thick bamboo membrane is drawn first and is closed the arc structure department that the piece was closed to the second, can guarantee on the one hand that the square opening of section of thick bamboo membrane opens, and on the other hand can protect the section of thick bamboo membrane not to destroy. The included angle between the first folding piece and the second folding piece and the cylinder film is too large, so that the cylinder film is not transferred downwards too smoothly, the cylinder film is easier to damage, and the cylinder film is more attached to the first folding piece and the second folding piece through the arc-shaped structures of the first folding piece and the second folding piece.

Referring to fig. 1 to 2, in another alternative embodiment of the opening device, the film passing assembly 2 includes a film passing cylinder 21, a first connecting member 22 slidably connected to one end of the film passing cylinder 21, and a film pressing base 23 fixed to one end of the first connecting member 22 facing the opening base 1, one end of the film passing cylinder 21 is transversely provided with a first sliding slot, a first sliding block is slidably fitted in the first sliding slot, the first sliding block is fixed to the first connecting member 22, a cylinder shaft of the film passing cylinder 21 is connected to one end of the first connecting member 22 facing away from the film pressing base 23, and the film pressing base 23 includes a second wheel 24 correspondingly disposed between two first wheels 122 of the roller set 12.

Specifically, the number of the film passing cylinders 21 is four, and the four film passing cylinders 21 are matched with the roller groups 12 on the opening seat 1 to press the cylindrical film, so that the four surfaces of the square opening of the cylindrical film are respectively pressed by the film passing cylinders 21 and smoothly move downwards; the cooperation of first spout and first slider makes press mold seat 23 can stably move towards opening seat 1, and at the in-process that the section of thick bamboo membrane was pulled down, press mold seat 23 can not receive the influence that the section of thick bamboo membrane was pulled down and produce the circumstances such as rock, and then improves opening device's stability.

Referring to fig. 3 to 6, in an alternative embodiment, the film sealing and packaging machine includes a film supplying device 3, the opening device 4 located on one side of the film supplying device 3, a film pulling device 5 located on two opposite sides of the opening device 4 and near the bottom of the opening device 4, a carrying device 6 located on one side of the film pulling device 5, and a film sealing device 7 corresponding to the film pulling device 5 and having a vertical pillar, wherein the film supplying device 3 is connected to the opening device 4 through a strip-shaped sealing film, and a feeding port 8 is provided on a machine table between the film pulling device 5 and the carrying device 6.

Referring to fig. 3 to 6, in another alternative embodiment of the film sealing and packaging machine, the film drawing device 5 includes a first moving mechanism 51 spaced from and arranged longitudinally along the vertical support, a first moving base 52 connected to a second slide block of the first moving mechanism 51, a first air cylinder 53 fixed to the first moving base 52, a film clamping air cylinder 54 connected to an air cylinder shaft of the first air cylinder 53, a first clamping block 55 fixed to an end of the film clamping air cylinder 54 close to the opening device 4, and a second clamping block 56 connected to a third slide block of the film clamping air cylinder 54, the opening device 4 is fixed to the first moving mechanism 51, the air cylinder shaft of the first air cylinder 53 is arranged toward the opening device 4, the end of the first clamping block 55 close to the opening device 4 is bent and extended toward the opening device 4, and the end of the second clamping block 56 close to the first clamping block 55 is bent and extended toward the opening device 4, the contact surface of the second clamping block 56 and the first clamping block 55 is transversely provided with a transverse rib.

Specifically, the first moving mechanism 51 is a mechanism for driving the first moving base 52 to move up and down, wherein the first moving mechanism 51 may be a pulley transmission mechanism driven by a motor, a servo linear motor, or a screw transmission mechanism, as long as the first moving base 52 can move up and down, and the first moving mechanism 51 is a common mechanical moving mechanism, and therefore will not be described in detail herein. Further, in the present embodiment, the first moving mechanism 51 is a pulley transmission mechanism driven by a motor; the second slider is driven by the first moving mechanism 51 and slides on a guide rail on the first moving mechanism 51.

The first moving mechanisms 51 are provided in two and arranged in parallel, and the first moving seats 52 on the first moving mechanisms 51 on both sides are always kept moving on the same horizontal plane, so that the film clamping air cylinders 54 can be kept to clamp the cylindrical film and move downwards, and the surface of the cylindrical film can be kept horizontal and neat without wrinkling.

In addition, the first air cylinder 53 is used for driving the film clamping air cylinder 54 to move towards the tube film, and the first air cylinder 53 is arranged to adapt to packaging tube films with different sizes or different types, so that the adaptability of the packaging machine is improved.

The first clamping block 55 and the second clamping block 56 on the film clamping cylinder 54 are matched together to clamp the film, the first moving mechanism 51 moves downwards to enable the film to move downwards, and the transverse ribs on the second clamping block 56 are used for increasing the friction force between the film and the first clamping block 55 to enable the film to be clamped on the first clamping block 55 and the second clamping block 56.

Referring to fig. 3 to 6, in another alternative embodiment of the film sealing and packaging machine, a material conveying device 9 is disposed in a machine table, and an ejecting device 9a is disposed corresponding to the end of the material conveying device 9 and the material loading port 8, the material conveying device 9 includes a second moving mechanism 91, a second moving seat connected to a fourth sliding block of the second moving mechanism 91, and a retaining block 92 disposed on the second moving seat and used for fixing a plastic cup, the ejecting device 9a includes a third moving mechanism 9a1, a third moving seat connected to a fifth sliding block of the third moving mechanism 9a1, and an ejecting portion 9a2 connected to the third moving seat and used for ejecting the plastic cup, when the second moving seat moves to a position facing the material loading port 8, the ejecting portion 9a2 overlaps with a central axis of the retaining block 92 and the material loading port 8.

Specifically, the second moving mechanism 91 and the third moving mechanism 9a1 may be a pulley transmission mechanism driven by a motor, a servo linear motor, or a screw transmission mechanism as long as the moving function can be achieved, and the second moving mechanism 91 and the third moving mechanism 9a1 are common mechanical moving mechanisms, and therefore will not be described in detail herein. In this embodiment, the second moving mechanism 91 and the third moving mechanism 9a1 are pulley transmission mechanisms driven by a motor, wherein the second moving mechanism 91 includes a second guide rail, the fourth slider is slidably connected to the second guide rail, and the fourth slider is driven by the second moving mechanism 91; the third moving mechanism 9a1 includes a third rail, a fifth slider is slidably connected to the third rail, and the fifth slider is driven by the third moving mechanism 9a 1.

Screens 92 is including being the fixed part of "C" style of calligraphy structure and passing the gag lever post on the fixed part, and the gag lever post interval sets up on the fixed part, and the quantity of gag lever post is four to be arranged in holding the plastics cup in four gag lever posts, and place on the fixed part.

In addition, the fixing portion of the "C" shaped structure is provided with a notch for allowing the ejecting portion 9a2 of the ejecting device 9a to pass through, so as to eject the plastic cup in the blocking position 92 upward and to feed the plastic cup to the feeding opening 8.

When the plastic cup packaging machine is used, the material conveying device 9 carries out material loading at the last processing station, so that a plastic cup to be packaged is loaded into the clamping position 92, the material conveying device 9 is conveyed to the position below the feeding port 8 from the last processing station and is right opposite to the position of the feeding port 8, at this time, the material ejecting device 9a is also opposite to the position of the feeding port 8, the material ejecting part 9a2 is positioned below the clamping position 92, the third moving mechanism 9a1 of the material ejecting device 9a moves upwards to drive the material ejecting part 9a2 to move upwards, at this time, the material ejecting part 9a2 is in contact with the plastic cup positioned at the lowest end in the clamping position 92 and pushes the plastic cup upwards to enter the feeding port 8 until the plastic cup is completely pushed into a cylindrical film.

Referring to fig. 3 to 6, in another alternative embodiment, the film sealing and packaging machine is provided with bag expanding devices at intervals around the feeding opening 8, the bag expanding device comprises a second cylinder b1 longitudinally fixed on the machine table and a third cylinder b2 connected to the cylinder shaft of the second cylinder b1, the cylinder axis of the second cylinder b1 is arranged toward the opening device 4 and penetrates through the machine table, the cylinder shaft of the third cylinder b2 is arranged towards the feeding port 8, the cylinder shaft of the third cylinder b2 is connected with a third moving seat, the third moving seat is connected with a bag expanding plate b3, one end of the bag expanding plate b3, which is close to the feeding opening 8, is bent and extended towards the opening device 4 to form a bent part, a ventilation pipeline is formed in the bent part, the side wall of the bent part is provided with an air inlet b4 communicated with the air duct, and the top of the bent part is provided with an air outlet b5 communicated with the air duct.

Specifically, the second cylinder b1 is used for adjusting the position of the third cylinder b2 upwards and enabling the bag expanding plate b3 to enter the tubular film, and the third cylinder b2 is used for driving the bag expanding plate b3 to move towards the opposite ends of the tubular film to expand and open the tubular film opening when the bag expanding plate b3 enters the tubular film.

In addition, one of the bag expanding plates b3 is used for expanding the opening of the cartridge film, and the other is used as a channel for filling nitrogen or ozone into the cartridge film. Due to the structural arrangement of the bag expanding plate b3, the structure is compact, the arrangement of an additional inflating mechanism is saved, the air inlet b4, the air outlet b5 and the air pipeline are directly integrated into the bag expanding plate b3, the inflating mechanism is further simplified, the bag opening is expanded, the inflating operation is carried out, and the production and packaging time is saved.

When the film clamping cylinder 54 clamps a film to the position of the feeding port 8, the second cylinder b1 is started to push the third cylinder b2 to move upwards, and the bag expanding plate b3 of the third cylinder b2 enters the film, the cylinder shaft of the third cylinder b2 drives the bag expanding plate b3 to move towards the inner surface of the film, so that the bag expanding plate b3 supports the inner surface of the film and opens the opening, the ejecting device 9a ejects the plastic cup into the film, and the inflating device inflates the film through the air inlet b 4.

Referring to fig. 3 to 6, in another alternative embodiment of the film sealing and packaging machine, the material handling device 6 includes a fourth moving mechanism 60, a fourth moving seat 61 connected to a sixth sliding block of the fourth moving mechanism 60, a fourth cylinder 62 arranged on the fourth moving seat 61, a fifth moving seat 63 connected to the fourth cylinder 62, a double-headed cylinder 64 arranged on the fifth moving seat 63, and clasping blocks 65 respectively connected to cylinder shafts of the double-headed cylinder 64, a support frame is arranged on the fourth moving seat 61 in parallel, a first guide rail is arranged at one end of the support frame facing the opening device 4, a seventh sliding block is slidably fitted on the first guide rail, and the seventh sliding block is connected to the fifth moving seat 63.

Specifically, the fourth moving mechanism 60 may be a pulley transmission mechanism driven by a motor, a servo linear motor, or a screw transmission mechanism, as long as the moving function is achieved, and the fourth moving mechanism 60 is a common mechanical moving mechanism, and therefore, will not be described in detail herein. In the present embodiment, the fourth moving mechanism 60 is a gear and toothed belt transmission mechanism. The gear is meshed with the toothed belt through the rotation of the motor driving gear, so that the fourth moving mechanism 60 drives the fourth moving seat 61 to move stably, and the purpose of stable material conveying and carrying is achieved.

The cylinder axis of the fourth cylinder 62 is disposed toward the fourth movable base 61, and is connected to the fourth movable base 61, and the fifth movable base 63 is fixed to the cylinder body of the fourth cylinder 62.

In addition, the two clasping blocks 65 are symmetrically arranged along the two opposite ends of the double-head cylinder 64, and the two clasping blocks 65 have the same structure, wherein the clasping positions of the clasping blocks 65 are arranged in a semicircular arc shape so as to clasp the plastic cup and fit the shape of the plastic cup, so that the plastic cup is prevented from being flattened or crushed; in addition, a limiting column is longitudinally arranged on the clasping block 65 in a penetrating manner and used for limiting the plastic cups, so that the plastic cups are kept in a vertical row, and a circular gasket horizontally arranged at the bottom of the limiting column is used for supporting the plastic cups.

When the packaging machine is used, when the filling of the cylinder film is completed, the fourth moving mechanism 60 drives the fourth moving seat 61 to move towards the position of the feeding port 8, when the holding block 65 reaches the packaging position, the holding block 65 holds the packaging film to be connected with the plastic cup under the driving of the double-head cylinder 64, the film clamping cylinder 54 is loosened and reset at the moment, the film sealing device 7 seals and cuts the upper end and the lower end of the packaging film, the packaging plastic cup is completed, the fourth moving mechanism 60 drives the fourth moving seat 61 to be far away from the position of the feeding port 8 and move towards the blanking device, when the blanking groove is reached, the double-head cylinder 64 loosens the holding block 65, and the plastic cup after the packaging falls into the blanking device.

The blanking device comprises a blanking channel and a blanking platform connected to the blanking channel, a material pushing cylinder is arranged at one end of the blanking platform, a cylinder shaft of the material pushing cylinder is arranged towards the blanking platform, so that a plastic cup used for packaging the blanking channel is pushed into the blanking platform, the blanking platform is arranged in an inclined mode, and one end of the material pushing cylinder is inclined back to the blanking platform.

Referring to fig. 3 to 6, in another alternative embodiment of the film sealing and packaging machine, the film sealing device 7 includes a fixed seat 70, an eighth cylinder 71, a sixth movable seat 72 and a film sealing protrusion 73, the fixed seat 70 is oppositely disposed on the vertical pillar and the first movable mechanism 51, the eighth cylinder 71 is fixed on the fixed seat 70, a cylinder axis of the eighth cylinder 71 is disposed toward the opening device 4, the sixth movable seat 72 is connected to a cylinder axis of the eighth cylinder 71, the film sealing protrusion 73 is connected to the sixth movable seat 72, and a heating pipe transversely penetrates through the film sealing protrusion 73;

specifically, in the present embodiment, the film sealing devices 7 are disposed oppositely and respectively disposed on the first moving mechanism 51 and the vertical support, wherein the film sealing device 7 at the upper end of the vertical support is provided with a cutter for cutting the cylindrical film.

When the film sealing device is used, the eighth cylinder 71 is fixed on the fixed seat 70, the eighth cylinder 71 drives the sixth moving seat 72 to move towards the direction of the film, the film sealing lug 73 at one end of the vertical support is in contact with the film sealing lug 73 on the first moving mechanism 51 during film sealing, the tooth-shaped structures on the film sealing lugs 73 are matched with each other, the heating pipe in the film sealing lug 73 is heated to 100 degrees for film sealing, and after the film sealing is finished, the film cutting cylinder is started and the upper end of the film is cut off.

A film cutting cylinder 74 is arranged on the fixing seat 70 positioned at the upper end of the vertical support, the film cutting cylinder 74 is positioned above the eighth cylinder 71, the cylinder shaft of the film cutting cylinder 74 is arranged towards the opening device 4, and a cutting knife 75 is connected to the cylinder shaft of the film cutting cylinder 74.

installing the sealing film into the film supply device 3, and pulling the head end of the sealing film onto the opening device 4 for opening, so that the head end of the sealing film forms a square opening;

the film pulling device 5 clamps the sealing film with the square opening and moves downwards until the head end of the sealing film with the square opening reaches the position of the feeding port 8;

the plastic cup enters the sealing film through the feeding port 8, the material carrying device 6 moves to the position of the feeding port 8, and the plastic cup and the sealing film are tightly held together;

the film sealing device 7 is started, the sealing film at the upper end is cut off, and then the sealing film is heated;

the material carrying device 6 holds the packaged plastic cup tightly and moves to a blanking position for blanking.

This seal membrane packagine machine collects and opens bag, automatic inflation and automatic packing as an organic whole automatically, realizes high automatic packing purpose to whole seal membrane packaging method is swift simple, need not to take manual operation, reduces greatly and seals membrane packing time, and then promotes production efficiency.

The invention is an integrated machine for opening bags, sealing films and packaging, which realizes the purposes of automatically opening bags of a cylindrical film, automatically filling a product into the bag, automatically filling nitrogen or ozone, and finally automatically sealing and discharging the bag; in addition, the film sealing and packaging machine has low operation noise and low operation cost, and can meet the requirement of large-batch product packaging.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The foregoing is merely a preferred embodiment of the invention and is not intended to limit the invention in any manner. Those skilled in the art can make numerous possible variations and modifications to the present teachings, or modify equivalent embodiments to equivalent variations, without departing from the scope of the present teachings, using the methods and techniques disclosed above. Therefore, all equivalent changes made according to the shape, structure and principle of the present invention without departing from the technical scheme of the present invention shall be covered by the protection scope of the present invention.

Claims

1. A film sealing and packaging machine is characterized by comprising a film supplying device, an opening device, a film pulling device, a material moving device and a film sealing device, wherein the opening device is positioned on one side of the film supplying device, the film pulling device is positioned on two opposite sides of the opening device and is close to the bottom of the opening device, the material moving device is arranged on one side of the film pulling device, the film sealing device corresponds to the film pulling device and is provided with a vertical support, the film supplying device is connected with the opening device through a strip-shaped sealing film, and a feeding hole is formed in a machine table between the film pulling device and the material moving device;

the bag expanding device is arranged at intervals around the feeding port and comprises a second cylinder and a third cylinder, the second cylinder is longitudinally fixed on the machine table, the third cylinder is connected to the cylinder shaft of the second cylinder, the cylinder shaft of the second cylinder faces the opening device and penetrates through the machine table, the cylinder shaft of the third cylinder faces the feeding port, a third moving seat is connected to the cylinder shaft of the third cylinder, a bag expanding plate is connected to the third moving seat, one end, close to the feeding port, of the bag expanding plate bends and extends towards the opening device to form a bending portion, a ventilation pipeline is formed in the bending portion, an air inlet communicated with the ventilation pipeline is formed in the side wall of the bending portion, and an air outlet communicated with the ventilation pipeline is formed in the top of the bending portion.

2. The film sealing and packaging machine according to claim 1, wherein the film drawing device comprises a first moving mechanism disposed in a longitudinal arrangement and spaced from the vertical support, a first moving base connected to a second slide block of the first moving mechanism, a first cylinder fixed to the first moving base, a film clamping cylinder connected to a cylinder shaft of the first cylinder, a first clamping block fixed to one end of the film clamping cylinder close to the opening device and a second clamping block connected to a third slide block of the film clamping cylinder, the opening device is fixed to the first moving mechanism, the cylinder shaft of the first cylinder is disposed toward the opening device, one end of the first clamping block close to the opening device bends and extends toward the opening device, one end of the second clamping block close to the first clamping block bends and extends toward the opening device, the contact surface of the second clamping block and the first clamping block is transversely provided with a transverse rib.

3. The film sealing and packaging machine as claimed in claim 1, wherein a material transporting device is disposed in the machine table, and an ejecting device is disposed corresponding to the end of the material transporting device and the material loading port, the material transporting device includes a second moving mechanism, a second moving seat connected to a fourth sliding block of the second moving mechanism, and a retaining position for fixing the plastic cup and disposed on the second moving seat, the ejecting device includes a third moving mechanism, a third moving seat connected to a fifth sliding block of the third moving mechanism, and an ejecting portion connected to the third moving seat and used for ejecting the plastic cup, and when the second moving seat moves to a position facing the material loading port, the ejecting portion overlaps with the central axis of the retaining position and the material loading port.

4. The film sealing and packaging machine according to claim 1, wherein the carrying device comprises a fourth moving mechanism, a fourth moving base connected to a sixth sliding block of the fourth moving mechanism, a fourth cylinder provided on the fourth moving base, a fifth moving base connected to the fourth cylinder, a double-headed cylinder provided on the fifth moving base, and clasping blocks respectively connected to cylinder shafts of the double-headed cylinder, wherein a support frame is provided in parallel on the fourth moving base, a first guide rail is provided at one end of the support frame facing the opening device, a seventh sliding block is slidably fitted on the first guide rail, and the seventh sliding block is connected to the fifth moving base.

5. The film sealing and packaging machine according to claim 2, wherein the film sealing device comprises a fixed seat, an eighth cylinder, a sixth movable seat and a film sealing projection, the fixed seats are oppositely arranged on the vertical support and the first moving mechanism, the eighth cylinder is fixed on the fixed seat, a cylinder shaft of the eighth cylinder is arranged towards the opening device, the sixth movable seat is connected to a cylinder shaft of the eighth cylinder, the film sealing projection is connected to the sixth movable seat, and a heating pipe transversely penetrates through the film sealing projection;

6. A film sealing and packaging method performed by the film sealing and packaging machine according to any one of claims 1 to 5, comprising: