CN112644030A

CN112644030A - Silica gel waterproof environment-friendly food bag and preparation method thereof

Info

Publication number: CN112644030A
Application number: CN202011397816.4A
Authority: CN
Inventors: 陈云程
Original assignee: Dongguan Chuang Bisheng Silicone Products Co Ltd
Current assignee: Dongguan Chuang Bisheng Silicone Products Co Ltd
Priority date: 2020-12-03
Filing date: 2020-12-03
Publication date: 2021-04-13

Abstract

The invention discloses a preparation method of a silica gel waterproof environment-friendly food bag, which comprises the following steps: (1) providing a silica gel material, and respectively preparing a left shell and a right shell by means of a die-casting forming die, wherein one side of the left shell is provided with a clamping structure, and one side of the right shell is provided with a locking structure which can be sealed with the clamping structure; (2) coating the remaining three sides of the left shell or/and the right shell with silica gel glue; (3) correspondingly pasting the left shell and the right shell, and clamping the bonding position of the left shell and the right shell by using a clamp to position the bonding position; (4) cooling and fixing to form the food bag. The bag is made of silica gel materials and belongs to an environment-friendly food bag. Prepare left shell and right shell respectively through die-casting forming die, then bond fixedly with both through silica gel glue, do not adopt one shot forming's mode, can realize that seal structure is more complicated, improve its waterproof performance, utilize the clip to stereotype after pasting, both convenient can realize again that left shell and right shell paste stably.

Description

Silica gel waterproof environment-friendly food bag and preparation method thereof

Technical Field

The invention relates to the technical field of food bags, in particular to a silica gel waterproof environment-friendly food bag and a preparation method thereof.

Background

The sealed bag can be used for the internal and external packaging of various small articles (ornaments, hardware and toys). The sealed bag produced with food-grade material can be used to store various kinds of food, tea, marine products, etc. and has the functions of preventing moisture, smell, water and insect and preventing the scattering of articles.

Along with the reinforcing of environmental protection consciousness, the plastic bag has been restricted to use, adopts the silica gel material at present mostly, and the silica gel material is nontoxic tasteless, the thermostability is good, chemical property is stable for place food safety and health, and the silica gel material has higher mechanical strength, and is more firm than in the plastic bag, can hold heavier article. Currently, the food bag includes a bag body, bag body integrated into one piece, and the bag body has an open end, and the open end can be sealed. When the sealing portion is complicated, it is difficult to achieve integral molding, and therefore, it is necessary to provide a method for manufacturing a sealing bag which is not integrally molded.

Disclosure of Invention

The invention aims to provide a silica gel waterproof environment-friendly food bag and a preparation method thereof.

In order to achieve the purpose, the invention discloses a preparation method of a silica gel waterproof environment-friendly food bag, which comprises the following steps:

(1) providing a silica gel material, and respectively preparing a left shell and a right shell by means of a die-casting forming die, wherein one side of the left shell is provided with a clamping structure, and one side of the right shell is provided with a locking structure which can be sealed with the clamping structure;

(2) coating the remaining three sides of the left shell or/and the right shell with silica gel glue;

(3) correspondingly pasting the left shell and the right shell, and clamping the bonding position of the left shell and the right shell by using a clamp to position the bonding position;

(4) cooling and fixing to form the food bag.

Compared with the prior art, the preparation method of the waterproof environment-friendly silica gel food bag adopts silica gel materials for preparation, and belongs to the environment-friendly food bag. Prepare left shell and right shell respectively through die-casting forming die, then bond fixedly with both through silica gel glue, do not adopt one shot forming's mode, can realize that seal structure is more complicated, improve its waterproof performance, utilize the clip to stereotype after pasting, both convenient can realize again that left shell and right shell paste stably.

Preferably, the die-casting forming die comprises a left shell forming die and a right shell forming die, the left shell forming die is used for preparing the left shell, the right shell forming die is used for preparing the right shell,

the left shell forming die comprises a first upper die plate and a first lower die plate matched with the first upper die plate, the first upper die plate is provided with a plurality of first upper die cavities, the first lower die plate is provided with a plurality of first lower die cavities correspondingly matched with the first upper die cavities, the first upper die cavities and the first lower die cavities form a left forming die cavity of the left shell, and the first upper die cavity is provided with a first part forming a clamping structure in the left shell;

the right side shell forming die includes the second cope match-plate pattern and with second cope match-plate pattern complex second lower bolster, the second cope match-plate pattern has a plurality of second and goes up the die cavity, the second lower bolster have with a plurality of the second goes up the die cavity and corresponds a plurality of second lower die cavities of complex, the second go up the die cavity with the die cavity forms the right shaping die cavity of right side shell under the second, the second goes up the die cavity and is equipped with locking structure's second portion in the right side shell.

Preferably, the first upper mold cavity comprises a first left forming mold cavity, a second left forming mold cavity, a third left forming mold cavity and a fourth left forming mold cavity which are arranged in an array, and the first left forming mold cavity is respectively arranged in axial symmetry with the second left forming mold cavity and the fourth left forming mold cavity and in central symmetry with the third left forming mold cavity;

the first lower die cavity comprises a fifth left forming die cavity, a sixth left forming die cavity, a seventh left forming die cavity and an eighth left forming die cavity which are arranged in an array, and the fifth left forming die cavity is respectively arranged in axial symmetry with the sixth left forming die cavity and the eighth left forming die cavity and in central symmetry with the seventh left forming die cavity;

the fifth left forming die cavity, the sixth left forming die cavity, the seventh left forming die cavity and the eighth left forming die cavity are respectively and correspondingly matched with the first left forming die cavity, the second left forming die cavity, the third left forming die cavity and the fourth left forming die cavity.

Preferably, the second upper mold cavity comprises a first right forming mold cavity, a second right forming mold cavity, a third right forming mold cavity and a fourth right forming mold cavity which are arranged in an array, and the first right forming mold cavity, the second right forming mold cavity and the fourth right forming mold cavity are arranged in an axial symmetry manner and are arranged in a central symmetry manner with the third right forming mold cavity;

the second lower die cavity comprises a fifth right forming die cavity, a sixth right forming die cavity, a seventh right forming die cavity and an eighth right forming die cavity which are arranged in an array, and the fifth right forming die cavity, the sixth right forming die cavity and the eighth right forming die cavity are arranged in axial symmetry and are arranged in central symmetry with the seventh right forming die cavity;

the fifth right forming die cavity, the sixth right forming die cavity, the seventh right forming die cavity and the eighth right forming die cavity are correspondingly matched with the first right forming die cavity, the second right forming die cavity, the third right forming die cavity and the fourth right forming die cavity respectively.

Preferably, the first portion includes a first convex portion, a second convex portion and a concave portion located between the first convex portion and the second convex portion, the second portion includes a first engaging portion, a second engaging portion and a third engaging portion, a first locking portion engaged with the first convex portion is formed between the first engaging portion and the second engaging portion, a second locking portion engaged with the second convex portion is formed between the second engaging portion and the third engaging portion, and the second engaging portion is inserted into the concave portion.

Preferably, the first upper template is provided with a first guide sleeve, and the first lower template is provided with a first guide column matched with the first guide sleeve;

the second upper template is provided with a second guide sleeve, and the second lower template is provided with a second guide column matched with the second guide sleeve.

Preferably, the first guide column is in a conical structure; the second guide post is of a conical structure.

Preferably, the remaining three sides of the left shell or the right shell are glued by means of a gluing device, the gluing device comprises a gluing device, a positioning device, a working platform, a driving part and a support, the positioning device is fixed on the working platform, the driving part is installed on the support to drive the gluing device to move, the left shell or the right shell is positioned in the positioning device, and the gluing device is used for gluing the gluing position in the positioning device.

Preferably, the positioning device comprises a positioning body, a positioning cavity in a quadrilateral structure is concavely arranged in the positioning body, an opening is formed in one side of the positioning body, which is located in the positioning cavity, grooves are formed in the other three sides of the positioning body, which are located in the positioning cavity, the grooves and the positioning cavity are in a stepped structure, and the distance from the bottom of each groove to the upper surface of the positioning body is smaller than the distance from the bottom of each positioning cavity to the upper surface of the positioning body; the gluing device is used for gluing the part of the left shell or the right shell, which is positioned in the groove.

Correspondingly, the silica gel waterproof environment-friendly food bag is also provided and is prepared by the preparation method of the silica gel waterproof environment-friendly food bag.

Drawings

Fig. 1 is a schematic structural view of a first upper template in the present invention.

Fig. 2 is a schematic structural view of the first lower template of the present invention.

Fig. 3 is a schematic structural view of a left shell molding die according to the present invention.

Fig. 4 is an enlarged view of a point a in fig. 1.

Fig. 5 is a schematic structural view of a second upper template in the present invention.

FIG. 6 is a schematic structural view of a second lower template according to the present invention.

Fig. 7 is a schematic structural view of a right shell forming die of the present invention.

Fig. 8 is an enlarged view at B in fig. 5.

Fig. 9 is a schematic structural view of the bonding apparatus of the present invention.

Fig. 10 is a schematic structural view of a positioning device in the bonding apparatus of the present invention.

Fig. 11 is a top view of the positioning device of fig. 10.

Description of the symbols:

a left shell molding die 100a, a first upper die plate 10a, a first upper cavity 11a, a first left molding cavity 111a, a second left molding cavity 113a, a third left molding cavity 115a, a fourth left molding cavity 117a, a first portion 13a, a first protrusion 131a, a second protrusion 133a, a recess 135a, a first guide sleeve 15a, a left molding cavity 17a, a first lower die plate 20a, a first lower cavity 21a, a fifth left molding cavity 211a, a sixth left molding cavity 213a, a seventh left molding cavity 215a, an eighth left molding cavity 217a, a first guide post 23a,

a right shell molding die 100b, a second upper die plate 10b, a second upper die cavity 11b, a first right molding die cavity 111b, a second right molding die cavity 113b, a third right molding die cavity 115b, a fourth right molding die cavity 117b, a second portion 13b, a first engaging portion 131b, a second engaging portion 133b, a third engaging portion 135b, a first locking portion 137b, a second locking portion 139b, a second guide sleeve 15b, a right molding die cavity 17b, a second lower die plate 20b, a second lower die cavity 21b, a fifth right molding die cavity 211b, a sixth right molding die cavity 213b, a seventh right molding die cavity 215b, an eighth right molding die cavity 217b, a second guide post 23b,

the gluing device comprises a gluing device 100, a gluing device 10, a positioning device 30, a positioning body 31, a positioning cavity 311, an arc-shaped structure 312, an opening part 313, a groove 315, a working platform 50, a driving part 70, a support 90, a first support 91, a second support 93 and a transverse support 95.

Detailed Description

In order to explain technical contents, structural features, and objects and effects of the present invention in detail, the following detailed description is given with reference to the accompanying drawings in conjunction with the embodiments.

The application discloses a preparation method of a silica gel waterproof environment-friendly food bag, which comprises the following steps:

(4) cooling and fixing to form the food bag.

Wherein, the food bag adopts silica gel material preparation, belongs to the environmental protection material. The left shell and the right shell are prepared by firstly swinging, pressing and casting glue by means of a die-casting forming die, a clamping structure is arranged on one side of the left shell, a locking structure is arranged on one side of the right shell, the remaining three sides of the left shell and the right shell are coated with silica gel glue for bonding and fixing, one side of the remaining clamping structure or one side of the locking structure is not coated with glue and is clamped and fixed through the clamping structure and the locking structure, the process is not prepared by adopting a one-step forming structure, the left shell and the right shell are respectively prepared, and therefore, in the preparation process, the clamping structure and the sealing structure can be prepared more complexly, hermetically and waterproof.

Referring to fig. 1 to 8, the die-casting mold includes a left shell forming mold 100a and a right shell forming mold 100b, the left shell forming mold 100a is used for preparing a left shell, and the right shell forming mold 100b is used for preparing a right shell. The left shell forming mold 100a includes a first upper mold plate 10a and a first lower mold plate 20a matched with the first upper mold plate 10a, the first upper mold plate 10a has a plurality of first upper mold cavities 11a, the first lower mold plate 20a has a plurality of first lower mold cavities 21a correspondingly matched with the plurality of first upper mold cavities 11a, the first upper mold cavities 11a and the first lower mold cavities 21a form a left shell left forming mold cavity 17a, and the first upper mold cavities 11a are provided with first portions 13a forming a clamping structure in the left shell. The right shell forming die 100b comprises a second upper die plate 10b and a second lower die plate 20b matched with the second upper die plate 10b, the second upper die plate 10b is provided with a plurality of second upper die cavities 11b, the second lower die plate 20b is provided with a plurality of second lower die cavities 21b correspondingly matched with the plurality of second upper die cavities 11b, the second upper die cavities 11b and the second lower die cavities 21b form a right forming die cavity 17b of the right shell, and the second upper die cavities 11b are provided with second parts 13b forming a locking structure in the right shell. When the silica gel material is put into the first upper mold cavity 11a, the first lower mold cavity 21a is matched with the first upper mold cavity, and the left shell is obtained through hot press molding, and the right shell can be prepared in the same way. Especially, a plurality of first upper die cavities 11a and a plurality of first lower die cavities 21a are correspondingly matched to obtain a plurality of left forming die cavities 17a, a plurality of left shells can be formed at one time, the left shells are suitable for the right shells in the same way, and the production efficiency is effectively improved. And the left shell structure and the right shell structure formed by the first part 13a and the second part 13b can be clamped to realize sealing. The left shell forming die 100a is used for preparing a left shell, the right shell forming die 100b is used for preparing a right shell, a plurality of left forming die cavities 17a for preparing the left shell and right forming die cavities 17b for preparing the right shell are arranged, and the left shell forming die and the right shell forming die are prepared in the same batch, so that the production efficiency is improved.

Referring to fig. 1-2, the first upper mold cavity 11a includes a first left molding cavity 111a, a second left molding cavity 113a, a third left molding cavity 115a and a fourth left molding cavity 117a arranged in an array, and the first left molding cavity 111a, the second left molding cavity 113a and the fourth left molding cavity 117a are arranged in axial symmetry and are arranged in central symmetry with the third left molding cavity 115 a; the first lower mold cavity 21a includes a fifth left molding cavity 211a, a sixth left molding cavity 213a, a seventh left molding cavity 215a and an eighth left molding cavity 217a arranged in an array, and the fifth left molding cavity 211a, the sixth left molding cavity 213a and the eighth left molding cavity 217a are arranged in axial symmetry and are arranged in central symmetry with the seventh left molding cavity 215 a; the arrangement structure of the first left forming die cavity 111a, the second left forming die cavity 113a, the third left forming die cavity 115a and the fourth left forming die cavity 117a can ensure that the material in each forming die cavity is uniform, and the quality of a product obtained by one-step forming is stable. The fifth left molding cavity 211a, the sixth left molding cavity 213a, the seventh left molding cavity 215a, and the eighth left molding cavity 217a are respectively and correspondingly engaged with the first left molding cavity 111a, the second left molding cavity 113a, the third left molding cavity 115a, and the fourth left molding cavity 117 a.

Referring to fig. 5-6, the second upper mold cavity 11b includes a first right molding cavity 111b, a second right molding cavity 113b, a third right molding cavity 115b and a fourth right molding cavity 117b arranged in an array, and the first right molding cavity 111b, the second right molding cavity 113b and the fourth right molding cavity 117b are axially symmetric and are centrosymmetric with the third right molding cavity 115 b; the second lower mold cavity 21b includes a fifth right molding cavity 211b, a sixth right molding cavity 213b, a seventh right molding cavity 215b and an eighth right molding cavity 217b arranged in an array, and the fifth right molding cavity 211b, the sixth right molding cavity 213b and the eighth right molding cavity 217b are arranged in axial symmetry and are arranged in central symmetry with the seventh right molding cavity 215 b; fifth right molding cavity 211b, sixth right molding cavity 213b, seventh right molding cavity 215b, and eighth right molding cavity 217b are correspondingly mated with first right molding cavity 111b, second right molding cavity 113b, third right molding cavity 115b, and fourth right molding cavity 117b, respectively.

Referring to fig. 3 and 7, the first upper mold plate 10a is provided with a first guide sleeve 15a, and the first lower mold plate 20a is provided with a first guide post 23a engaged with the first guide sleeve 15 a. When the mold is closed, the first guide post 23a is inserted into the first guide sleeve 15a, so that the first upper mold plate 10a and the first lower mold plate 20a can be quickly and stably closed. Preferably, the first guide post 23a is tapered to further improve the stability and efficiency of mold clamping. Similarly, the second upper template 10b is provided with a second guide sleeve 15b, and the second lower template 20b is provided with a second guide column 23b matched with the second guide sleeve 15 b. When the die is closed, the second guide column 23b is inserted into the second guide sleeve 15b, so that the second upper die plate 10b and the second lower die plate 20b can be quickly and stably closed. Preferably, the second guide post 23b has a tapered structure. Further, a first water seal 18a is provided between the first upper mold plate 10a and the first lower mold plate 20a, and after the first upper mold plate 10a and the first lower mold plate 20a are opened, the first water seal 17a is opened by means of an oil cylinder or an air cylinder, so that the left shell is taken out. Similarly, a second water sealing buckle 18b is arranged between the second upper template 10b and the second lower template 20b, and after the second upper template 10b and the second lower template 20b are opened, the second water sealing buckle 18b is opened by an oil cylinder or an air cylinder, so that the right shell is taken out.

Referring to fig. 4 and 8, the first portion 13a includes a first protrusion 131a, a second protrusion 133a, and a recess 135a located between the first protrusion 131a and the second protrusion 133a, the second portion 13b includes a first engaging portion 131b, a second engaging portion 133b, and a third engaging portion 135b, a first locking portion 137b engaged with the first protrusion 131a is formed between the first engaging portion 131b and the second engaging portion 133b, a second locking portion 139b engaged with the second protrusion 133a is formed between the second engaging portion 133b and the third engaging portion 135b, and the second engaging portion 133b is inserted into the recess 135 a. The clamping structure and the locking structure formed by the first portion 13a and the second portion 13b are used for realizing the clamping of the left shell and the right shell, and the formed double-layer locking structure improves the waterproof performance.

Referring to fig. 9, the remaining three sides of the left shell or the right shell are glued by the gluing device 100, the gluing device 100 includes a gluing device 10, a positioning device 30, a working platform 50, a driving part 70 and a bracket 90, the positioning device 30 is fixed on the working platform 50, the driving part 70 is installed on the bracket 90 to drive the gluing device 10 to move, the left shell or the right shell is positioned in the positioning device 30, and the gluing device 10 glues the gluing part in the positioning device 30. Further, the bracket 90 includes a first bracket 91, a second bracket 93, and a cross bracket 95 located between the first bracket 91 and the second bracket 93, the work platform 50 is located below the cross bracket 95, and the driving portion 70 is located on the cross bracket 95.

Referring to fig. 10-11, the positioning device 30 includes a positioning body 31, a positioning cavity 311 having a quadrilateral structure is recessed in the positioning body 31, an opening 313 is formed on one side of the positioning body 31 located in the positioning cavity 311, grooves 315 are formed on three sides of the positioning body 31 located in the positioning cavity 311, the grooves 315 and the positioning cavity 311 have a stepped structure, and a distance from a bottom of the groove 315 to an upper surface of the positioning body 31 is smaller than a distance from a bottom of the positioning cavity 311 to the upper surface of the positioning body 31; the gluing device 10 can be used to glue the portion of the product to be glued located inside the recess 315. Because the gluing device 100 adopts the gluing device 10 to glue the part in the groove 315, the gluing is stable and uniform, and the production efficiency and the quality are effectively improved. That is to say, place left shell or right shell in location chamber 311, wait that the rubber coating is partial to be located recess 315, then wait to rubber coating the partial rubber coating with the help of rubber coating device 10 along the direction that sets up of recess 315 and carry out the rubber coating, can realize the rubber coating fast, also can realize rubber coating even to improve production efficiency and guarantee product quality stability. It can also be understood that the driving portion 70 can be implemented by using a driving cylinder or a sliding rail, the driving cylinder is controlled by a controller to slide along the shape of the groove 315, in the sliding process, the glue coating device 10 drives the glue contained in the glue coating device to coat the glue coating portion of the product in the groove 315 according to the designed amount, so as to ensure uniform glue coating, in the actual process, different requirements of the product on the glue can be realized by setting the sliding speed of the driving portion 70 and the glue output amount of the glue coating device 10, which is not described in detail herein.

In a preferred embodiment, the width of the opening 313 is smaller than the width of the corresponding side of the positioning cavity 311, the opening 313 is used for placing the part of the left or right shell which does not need glue, i.e. the sealing opening is not adhered by glue, and the width of the opening 313 is smaller than the width of the side of the positioning cavity 311, so that the sealing performance of the food bag can be improved.

In a preferred embodiment, the positioning cavity 311 has an arc-shaped structure 312 between two adjacent sides. In this embodiment, the arc structures 312 are respectively disposed between two adjacent sides of the four sides of the positioning cavity 311, i.e. 4 arc structures 312 are disposed, so that when the positioning cavity 311 is placed in a left shell or a right shell, wrinkles are avoided, the gluing position is stable, and the gluing device 10 can glue evenly.

The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the present invention, therefore, the present invention is not limited by the appended claims.

Claims

1. A preparation method of a silica gel waterproof environment-friendly food bag is characterized by comprising the following steps:

(4) cooling and fixing to form the food bag.

2. The method of making a silicone waterproof and environmental friendly food bag according to claim 1, wherein the die casting molds comprise a left shell forming mold for making a left shell and a right shell forming mold for making a right shell,

3. The method of making a silicone waterproof and environmental friendly food bag of claim 2, wherein said first upper mold cavity includes first, second, third and fourth left forming mold cavities arranged in an array, and said first left forming mold cavity is arranged axially symmetrically with said second and fourth left forming mold cavities, respectively, and arranged centrally symmetrically with said third left forming mold cavity;

the first lower die cavity comprises a fifth left forming die cavity, a sixth left forming die cavity, a seventh left forming die cavity and an eighth left forming die cavity which are arranged in an array, and the fifth left forming die cavity, the sixth left forming die cavity and the eighth left forming die cavity are arranged in an axial symmetry manner and are arranged in a central symmetry manner with the seventh left forming die cavity;

4. The method of making a silicone waterproof and environmentally friendly food bag of claim 2, wherein said second upper mold cavity includes first right forming mold cavity, second right forming mold cavity, third right forming mold cavity and fourth right forming mold cavity arranged in an array, and said first right forming mold cavity is arranged axially symmetrically with said second right forming mold cavity and said fourth right forming mold cavity, respectively, and arranged centrosymmetrically with said third right forming mold cavity;

5. The method of making a silicone waterproof environmentally friendly groat bag of claim 2, wherein said first portion includes a first protrusion, a second protrusion and a recess between said first protrusion and said second protrusion, said second portion includes a first engaging portion, a second engaging portion and a third engaging portion, a first locking portion cooperating with said first protrusion is formed between said first engaging portion and said second engaging portion, a second locking portion cooperating with said second protrusion is formed between said second engaging portion and said third engaging portion, and said second engaging portion is inserted into said recess.

6. The method of making a silicone waterproof environmental food bag of claim 2 wherein said first upper template has a first guide sleeve and said first lower template has a first guide post cooperating with said first guide sleeve;

7. The method of making a silicone waterproof food bag according to claim 6 wherein said first guide post is of a tapered configuration; the second guide post is of a conical structure.

8. The method of making a silicone waterproof eco-friendly food bag according to claim 1 wherein the remaining three sides of the left or right shell are glued by means of a gluing device comprising a gluing device, a positioning device, a work platform, a driving part and a bracket, the positioning device being fixed to the work platform, the driving part being mounted to the bracket to drive the gluing device to move, the left or right shell being positioned in the positioning device, the gluing device gluing the glued area in the positioning device.

9. The method of claim 8, wherein the positioning device comprises a positioning body having a positioning cavity with a quadrilateral configuration recessed therein, the positioning body has an opening at one side of the positioning cavity, the positioning body has grooves at three other sides of the positioning cavity, the grooves and the positioning cavity have a stepped configuration, and the distance from the bottom of the groove to the upper surface of the positioning body is less than the distance from the bottom of the positioning cavity to the upper surface of the positioning body; the gluing device is used for gluing the part of the left shell or the right shell, which is positioned in the groove.

10. A silica gel waterproof eco-friendly food bag characterized by being manufactured by the method of manufacturing the silica gel waterproof eco-friendly food bag according to any one of claims 1 to 9.