阅读说明：本技术 一种拉链自立袋生产工艺 (Production process of zipper self-standing bag ) 是由 杨帆 于 2020-11-27 设计创作，主要内容包括：本发明涉及一种拉链自立袋生产工艺,包括以下步骤:S1,包装膜成型；S2,封边,利用伺服牵袋装置牵引膜材送至导向机构,由导向机构将膜材折叠后依次进行底封、拉链封、拉链头封、竖封以及冷封工序；S3,切割成型；S4,灌装物料,将包装袋经开袋、灌装以及展袋工序后进行封口处理,采用上热封装置与上冷封装置依次对包装袋进行上热封口与上封口冷却；S5,检验包装。本发明能够自动完成拉链自立袋的成型、制袋、开袋、计量填充以及封口的包装工艺,适用于各种热封性的多层复合膜的包装材料的包装设计,降低了生产成本,提高了生产效率。(The invention relates to a production process of a zipper self-standing bag, which comprises the following steps of S1, forming a packaging film; s2, sealing edges, pulling the film material to a guide mechanism by using a servo bag pulling device, and folding the film material by the guide mechanism to sequentially carry out bottom sealing, zipper head sealing, vertical sealing and cold sealing; s3, cutting and forming; s4, filling materials, sealing the packaging bag after bag opening, filling and bag unfolding processes, and sequentially carrying out upper heat sealing and upper seal cooling on the packaging bag by adopting an upper heat sealing device and an upper cold sealing device; and S5, checking and packaging. The invention can automatically complete the packaging processes of forming, bag making, bag opening, metering filling and sealing of the zipper self-standing bag, is suitable for the packaging design of various packaging materials of multilayer composite films with heat sealability, reduces the production cost and improves the production efficiency.)

1. A production process of a zipper self-standing bag is characterized by comprising the following steps: the method comprises the following steps:

s1, forming a packaging film, mounting the packaging film on a film winding drum, and conveying the packaging film to a punching device for punching through a film frame placing device;

s2, sealing edges, pulling the film material to a guide mechanism by using a servo bag pulling device, and folding the film material by the guide mechanism to sequentially carry out bottom sealing, zipper head sealing, vertical sealing and cold sealing;

s3, cutting and forming, namely cutting a V-shaped opening at the sealed edges at the two sides of the bag by adopting a die on the easy-tearing device, and cutting the appearance shape of the film with a fixed length by a die punching cutter;

s4, filling materials, sealing the packaging bag after bag opening, filling and bag unfolding processes, and sequentially performing upper heat sealing and upper sealing cooling on the packaging bag by adopting an upper heat sealing device and an upper cold sealing device;

and S5, checking and packaging, placing the sealed and cooled packaging bags on a conveying belt by a bag receiving mechanism for conveying, and packaging and warehousing for storage after the packaging bags are checked to be qualified.

2. The process for producing a zipper stand pouch according to claim 1, wherein: in step S2:

s2a, bottom sealing, namely, performing heat sealing molding on the bottom of the bag after the W is folded by a bottom sealing knife of a bottom sealing device;

s2b, sealing the zipper, namely heating the zipper by a zipper sealing knife of the zipper sealing device, and welding the zipper at a position with a specified height on the inner side of the bag;

s2c, sealing the zipper head, heating the zipper head by a zipper sealing knife of the zipper sealing device, and flattening the zipper welded at the sealing positions at the two sides of the bag;

s2d, vertically sealing, namely sealing edges of the packaging bag by a sealing knife of a vertical sealing device and heating, and welding the films with the sealed edges at two sides of the packaging bag together to form the sealed edges of the bag;

s2e, cold sealing, namely rapidly cooling the sealed edge of the bag through a sealing knife of a vertical sealing cooling device, flattening the sealed edge of the two side films of the bag which are welded together, and enabling the sealed edge to be flat and attractive.

3. The process for producing a zipper stand pouch according to claim 1, wherein: a color code detection device is installed between the servo bag pulling device and the easy tearing device, an electric eye on the color code detection device positions a color code on the film, and transmits a position signal to the servo bag pulling device, so that the servo bag pulling device pulls according to the width position of the color code.

4. The process for producing a zipper stand pouch according to claim 1, wherein: in step S4, the filling material includes the steps of:

s4a, opening the bag, lifting the formed packaging bag to a vacuum suction bag through a clamping lifting device, and sequentially carrying out bag separation, auxiliary bag opening and air blowing treatment;

s4b, filling, namely filling the materials into the packaging bag by adopting a double-powder blanking device or a measuring cup particle filling device, wherein the materials can be in a powder shape, a paste shape, a particle shape or a liquid shape;

and S4c, unfolding the bag, flattening the edge of the packaging bag filled with the material through a bag unfolding device, and then conveying the packaging bag to an upper sealing device for sealing.

5. The process for producing a zipper stand-up pouch according to claim 4, wherein: the upper seal is a twice upper heat sealing process, the first upper heat sealing process is used for heat sealing the zipper, and the second upper heat sealing process is used for heat sealing the edge of the packaging bag.

6. The process for producing a zipper stand pouch according to claim 1, wherein: put membrane frame device and include servo drawing membrane device, color code detector, rectifying system and straining device, the color code detector respectively in servo drawing membrane device and punching device connects, rectifying system in straining device's below is installed the roller, ultrasonic sensor is installed to the below of roller.

7. The process for producing a zipper stand-up pouch according to claim 6, wherein: the production flow of wrapping bag adopts the zip fastener packagine machine to accomplish, zip fastener packagine machine control is connected with PLC and touch-sensitive screen, the touch-sensitive screen with the PLC electricity is connected.

8. The process for producing a zipper stand-up pouch according to claim 7, wherein: magnetic strips are fixed on two sides of the zipper and embedded in the packaging bag.

Technical Field

The invention relates to the technical field of self-supporting bags, in particular to a production process of a zipper self-supporting bag.

Background

A self-supporting bag (Doypack) refers to a flexible package with a horizontal support structure at the bottom, which does not rest on any support and which can stand on its own whether the bag is open or not. Zipped stand-up pouches can also be reclosed and repeatedly opened, which is not suitable for packaging liquids and volatile substances due to the non-closure and limited strength of the closure provided by the zippers.

In the prior art, for example, chinese patent publication No. CN110104314A discloses a self-standing bag and a method for manufacturing the same, which relates to the field of packaging technology, and comprises a bag body; the bag top is arranged at the top of the bag body, and the edge of the bag top is adhered to the top of the bag body; the bag bottom is arranged at the bottom of the bag body, and the edge of the bag bottom is adhered to the bottom of the bag body; the cover mouth hole is formed in the bag body.

The above prior art solutions have the following drawbacks: although the technical scheme solves the technical problems that in the prior art, the glass bottle and the easy-to-pull can are heavy in weight and high in transportation cost, and a round hole at the bottom of the bag is easy to damage when the large-capacity bag falls off in the conventional production process, so that the bag loses the self-standing effect. However, the method is only a method for preparing the self-standing bag, and when the materials are packaged, a special filling machine is needed to open the self-standing bag for filling the materials, so that the production cost is increased, time and labor are wasted, and the working efficiency is reduced to a certain extent.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a production process of a zipper self-standing bag, which can automatically complete the packaging procedures of forming, bag making, bag opening, metering filling and sealing of the zipper self-standing bag, reduce the production cost and improve the working efficiency.

The above object of the present invention is achieved by the following technical solutions:

a production process of a zipper self-standing bag comprises the following steps:

s1, forming a packaging film, mounting the packaging film on a film winding drum, and conveying the packaging film to a punching device for punching through a film frame placing device;

s2, sealing edges, pulling the film material to a guide mechanism by using a servo bag pulling device, and folding the film material by the guide mechanism to sequentially carry out bottom sealing, zipper head sealing, vertical sealing and cold sealing;

s3, cutting and forming, namely cutting a V-shaped opening at the sealed edges at the two sides of the bag by adopting a die on the easy-tearing device, and cutting the appearance shape of the film with a fixed length by a die punching cutter;

s4, filling materials, sealing the packaging bag after bag opening, filling and bag unfolding processes, and sequentially performing upper heat sealing and upper sealing cooling on the packaging bag by adopting an upper heat sealing device and an upper cold sealing device;

and S5, checking and packaging, placing the sealed and cooled packaging bags on a conveying belt by a bag receiving mechanism for conveying, and packaging and warehousing for storage after the packaging bags are checked to be qualified.

Through the technical scheme, the packaging process of forming, bag making, bag opening, metering filling and sealing of the zipper self-standing bag can be automatically completed, and the packaging process is suitable for packaging designs of various heat-sealing multilayer composite film packaging materials, reduces the production cost and improves the production efficiency. The cold sealing treatment is carried out before and after the heat sealing process is carried out after the filling, so that the structural strength of the sealing position of the packaging bag is effectively improved, and the packaging quality of the product is improved; on the other hand, the product produced by the process has the advantages of low bag leakage rate, smooth and attractive packaging effect and no material clamping at the sealed edge.

The present invention in a preferred example may be further configured to: in step S2:

s2a, bottom sealing, namely, performing heat sealing molding on the bottom of the bag after the W is folded by a bottom sealing knife of a bottom sealing device;

s2b, sealing the zipper, namely heating the zipper by a zipper sealing knife of the zipper sealing device, and welding the zipper at a position with a specified height on the inner side of the bag;

s2c, sealing the zipper head, heating the zipper head by a zipper sealing knife of the zipper sealing device, and flattening the zipper welded at the sealing positions at the two sides of the bag;

s2d, vertically sealing, namely sealing edges of the packaging bag by a sealing knife of a vertical sealing device and heating, and welding the films with the sealed edges at two sides of the packaging bag together to form the sealed edges of the bag;

s2e, cold sealing, namely rapidly cooling the sealed edge of the bag through a sealing knife of a vertical sealing cooling device, flattening the sealed edge of the two side films of the bag which are welded together, and enabling the sealed edge to be flat and attractive.

Through the technical scheme, the packaging bag forms the self-standing bag after the processes of bottom sealing, zipper head sealing, vertical sealing and cold sealing, so that the sealing performance of the self-standing bag is improved, the stability of the zipper fixed on the packaging bag is improved, and the product quality is improved.

The present invention in a preferred example may be further configured to: a color code detection device is installed between the servo bag pulling device and the easy tearing device, an electric eye on the color code detection device positions a color code on the film, and transmits a position signal to the servo bag pulling device, so that the servo bag pulling device pulls according to the width position of the color code.

Through the technical scheme, the color mark detection device is used for positioning the color mark on the film, so that the servo bag pulling device pulls according to the width position of the color mark, the accuracy of the pulling position is improved, the phenomenon that the self-supporting bag leaks due to position deviation is avoided, and the yield of the self-supporting bag is improved.

The present invention in a preferred example may be further configured to: in step S4, the filling material includes the steps of:

s4a, opening the bag, lifting the formed packaging bag to a vacuum suction bag through a clamping lifting device, and sequentially carrying out bag separation, auxiliary bag opening and air blowing treatment;

s4b, filling, namely filling the materials into the packaging bag by adopting a double-powder blanking device or a measuring cup particle filling device, wherein the materials can be in a powder shape, a paste shape, a particle shape or a liquid shape;

and S4c, unfolding the bag, flattening the edge of the packaging bag filled with the material through a bag unfolding device, and then conveying the packaging bag to an upper sealing device for sealing.

Through above-mentioned technical scheme, fill again after opening the bag and blowing the processing, compare in traditional opening directly fill behind the bag, the filling volume that can effectual control material reduces the error of measurement, has improved the quality of packing simultaneously. And the filling machine can fill the materials in different states in the packaging bag, thereby greatly widening the filling field and improving the practicability. After filling, the edge of the packaging bag is flattened through the bag unfolding device, so that on one hand, subsequent sealing treatment is facilitated, and on the other hand, the flatness and attractiveness of the packaging bag are improved.

The present invention in a preferred example may be further configured to: the upper seal is a twice upper heat sealing process, the first upper heat sealing process is used for heat sealing the zipper, and the second upper heat sealing process is used for heat sealing the edge of the packaging bag.

Through above-mentioned technical scheme, leakproofness in the wrapping bag can be guaranteed to two heat-sealings for the material is difficult for flowing out from the gap, thereby has improved the shelf life of the material in the self-reliance bag.

The present invention in a preferred example may be further configured to: put membrane frame device and include servo drawing membrane device, color code detector, rectifying system and straining device, the color code detector respectively in servo drawing membrane device and punching device connects, rectifying system in straining device's below is installed the roller, ultrasonic sensor is installed to the below of roller.

Through the technical scheme, the packaging film is unfolded under the traction of the servo film drawing device, the electric eye of the color mark detector tracks and positions the color marks, and position signals are transmitted to the servo film drawing device and the punching device. The servo film drawing device controls the length of traction, and the punching device punches a round hole formed in the bottom on the film. The film with the bottom hole passes through the tensioning mechanism and then bypasses the roller of the deviation correcting system. The ultrasonic sensor installed below the roller can detect the swing amplitude of the film edge. When the front and back drift of the film exceeds the detection of the ultrasonic sensor, the deviation rectifying system moves the film in the opposite direction under the guide of the ultrasonic sensor, and the deviation rectifying system stops when the position of the film is adjusted to the middle position. The film passes through the bottom W-shaped folding device and is conveyed to the right under the traction of the servo bag pulling device.

The present invention in a preferred example may be further configured to: the production flow of wrapping bag adopts the zip fastener packagine machine to accomplish, zip fastener packagine machine control is connected with PLC and touch-sensitive screen, the touch-sensitive screen with the PLC electricity is connected.

Through above-mentioned technical scheme, the workman is through adjusting the touch-sensitive screen, and the touch-sensitive screen sends control signal instruction to PLC, adjusts control through PLC to the zipper packagine machine, and intelligent degree is high, and simple and convenient, easily operation have promoted the production efficiency of wrapping bag greatly.

The present invention in a preferred example may be further configured to: magnetic strips are fixed on two sides of the zipper and embedded in the packaging bag.

Through the technical scheme, the setting of magnetism strip not only can further increase the leakproofness of stand-up pouch, and the consumer forgets when sealing up the zip fastener after taking the stand-up pouch apart simultaneously, and the both sides magnetism strip that is located the wrapping bag opening part can be together the automatic absorption to make the wrapping bag closed, avoided the stand-up pouch after unsealing to receive the pollution, humanized design has improved the practicality greatly.

In summary, the invention includes at least one of the following beneficial technical effects:

1. the invention can automatically complete the packaging processes of forming, bag making, bag opening, metering filling and sealing of the zipper self-standing bag, is suitable for the packaging design of various packaging materials of multilayer composite films with heat sealability, reduces the production cost and improves the production efficiency. The cold sealing treatment is carried out before and after the heat sealing process is carried out after the filling, so that the structural strength of the sealing position of the packaging bag is effectively improved, and the packaging quality of the product is improved; on the other hand, the product produced by the process has the advantages of low bag leakage rate, smooth and attractive packaging effect and no material clamping at the sealed edge.

2. The packaging bag forms the self-standing bag after the processes of bottom sealing, zipper head sealing, vertical sealing and cold sealing, so that on one hand, the sealing performance of the self-standing bag is improved, on the other hand, the stability of the zipper fixed on the packaging bag is improved, and the product quality is improved.

3. The color mark detection device is used for positioning the color marks on the film, so that the servo bag pulling device pulls according to the width positions of the color marks, the accuracy of the pulling position is improved, the phenomenon that the self-supporting bag leaks due to position deviation is avoided, and the yield of the self-supporting bag is improved.

Drawings

FIG. 1 is a schematic flow diagram of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, the production process of the zipper self-standing bag disclosed by the invention comprises the following steps:

s1, forming the packaging film, mounting the packaging film on a film winding drum, and conveying the packaging film to a punching device for punching through a film frame placing device;

s2, sealing edges, pulling the film material to a guide mechanism by using a servo bag pulling device, and folding the film material by the guide mechanism to sequentially carry out bottom sealing, zipper head sealing, vertical sealing and cold sealing;

s3, cutting and forming, namely cutting a V-shaped opening at the sealed edges at the two sides of the bag by adopting a die on the easy-tearing device, and cutting the appearance shape of the film with a fixed length by a die punching cutter;

s4, filling materials, sealing the packaging bag after bag opening, filling and bag unfolding processes, and sequentially carrying out upper heat sealing and upper seal cooling on the packaging bag by adopting an upper heat sealing device and an upper cold sealing device;

and S5, checking and packaging, placing the sealed and cooled packaging bags on a conveying belt by a bag receiving mechanism for conveying, and packaging and warehousing for storage after the packaging bags are checked to be qualified.

Wherein, in step S2:

s2a, bottom sealing, namely, performing heat sealing molding on the bottom of the bag after the W is folded by a bottom sealing knife of a bottom sealing device;

s2b, sealing the zipper, namely heating the zipper by a zipper sealing knife of the zipper sealing device, and welding the zipper at a position with a specified height on the inner side of the bag;

s2c, sealing the zipper head, heating the zipper head by a zipper sealing knife of the zipper sealing device, and flattening the zipper welded at the sealing positions at the two sides of the bag;

s2d, vertically sealing, namely sealing edges of the packaging bag by a sealing knife of a vertical sealing device and heating, and welding films with the sealed edges at two sides of the packaging bag together to form the sealed edges of the bag;

s2e, cold sealing, namely rapidly cooling the sealed edge of the bag through a sealing knife of a vertical sealing cooling device, and flattening the sealed edge with films welded together at two sides of the bag to make the sealed edge smooth and beautiful.

The packaging bag forms the self-standing bag after the processes of bottom sealing, zipper head sealing, vertical sealing and cold sealing, so that on one hand, the sealing performance of the self-standing bag is improved, on the other hand, the stability of the zipper fixed on the packaging bag is improved, and the product quality is improved.

Referring to fig. 1, in step S4, filling the material includes the steps of:

s4a, opening the bag, lifting the formed packaging bag to a vacuum suction bag through a clamping lifting device, and sequentially carrying out bag separation, auxiliary bag opening and air blowing treatment;

s4b, filling, namely filling the materials into a packaging bag by adopting a double-powder blanking device or a measuring cup particle filling device, wherein the materials can be in a powder shape, a paste shape, a particle shape or a liquid shape;

and S4c, unfolding the bag, flattening the edge of the packaging bag filled with the material through a bag unfolding device, and then conveying the packaging bag to an upper sealing device for sealing.

The filling is carried out after the bag opening and air blowing treatment, compared with the traditional method of directly filling after the bag opening, the filling quantity of materials can be effectively controlled, the metering error is reduced, and the packaging quality is improved. And the filling machine can fill the materials in different states in the packaging bag, thereby greatly widening the filling field and improving the practicability. After filling, the edge of the packaging bag is flattened through the bag unfolding device, so that on one hand, subsequent sealing treatment is facilitated, and on the other hand, the flatness and attractiveness of the packaging bag are improved.

A color code detection device is installed between the servo bag pulling device and the easy tearing device, an electric eye on the color code detection device positions a color code on the film, and transmits a position signal to the servo bag pulling device, so that the servo bag pulling device pulls according to the width position of the color code. The color mark detection device is used for positioning the color marks on the film, so that the servo bag pulling device pulls according to the width positions of the color marks, the accuracy of the pulling position is improved, the phenomenon that the self-supporting bag leaks due to position deviation is avoided, and the yield of the self-supporting bag is improved.

In this embodiment, go up to seal and be twice last heat-seal process, heat-seal process carries out the heat-seal to the zip fastener on the first time, and heat-seal process carries out the heat-seal to the border of wrapping bag on the second time. The tightness in the packaging bag can be guaranteed through twice heat sealing, so that the materials are not easy to flow out of the gaps, and the quality guarantee period of the materials in the self-supporting bag is prolonged.

Further, put membrane frame device and include servo drawing membrane device, color code detector, deviation correcting system and straining device, the color code detector is connected in servo drawing membrane device and punching device respectively, and the roller is installed to deviation correcting system in straining device's below, and ultrasonic sensor is installed to the below of roller.

The packaging film is unfolded under the traction of the servo film pulling device, the color marks are tracked and positioned by the electric eyes of the color mark detector, and position signals are transmitted to the servo film pulling device and the punching device. The servo film drawing device controls the length of traction, and the punching device punches a round hole formed in the bottom on the film. The film with the bottom hole passes through the tensioning mechanism and then bypasses the roller of the deviation correcting system.

The ultrasonic sensor installed below the roller can detect the swing amplitude of the film edge. When the front and back drift of the film exceeds the detection of the ultrasonic sensor, the deviation rectifying system moves the film in the opposite direction under the guide of the ultrasonic sensor, and the deviation rectifying system stops when the position of the film is adjusted to the middle position. The film passes through the bottom W-shaped folding device and is conveyed to the right under the traction of the servo bag pulling device.

The production flow of the packaging bag is completed by adopting a zipper packaging machine, the zipper packaging machine is in control connection with a PLC and a touch screen, and the touch screen is electrically connected with the PLC. The workman is through adjusting the touch-sensitive screen, and the touch-sensitive screen sends control signal instruction to PLC, carries out regulation control to the zipper packagine machine through PLC, and intelligent degree is high, and simple and convenient, easily operation have promoted the production efficiency of wrapping bag greatly.

Wherein, the two sides of the zipper are fixed with magnetic strips which are embedded in the packaging bag. The setting of magnetism strip not only can further increase the leakproofness of self-reliance bag, and the consumer forgets when sealing the zip fastener after taking the self-reliance bag apart simultaneously, and the both sides magnetism strip that is located the wrapping bag opening part can adsorb together by automatic to make the wrapping bag closed, avoided the self-reliance bag after unsealing to receive the pollution, humanized design has improved the practicality greatly.

The implementation principle of the embodiment is as follows: the invention can automatically complete the packaging processes of forming, bag making, bag opening, metering filling and sealing of the zipper self-standing bag, is suitable for the packaging design of various packaging materials of multilayer composite films with heat sealability, reduces the production cost and improves the production efficiency. The cold sealing treatment is carried out before and after the heat sealing process is carried out after the filling, so that the structural strength of the sealing position of the packaging bag is effectively improved, and the packaging quality of the product is improved; on the other hand, the product produced by the process has the advantages of low bag leakage rate, smooth and attractive packaging effect and no material clamping at the sealed edge.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.