Packaging bag for two-component polymer polystyrene foam

Abstract

The utility model discloses a packaging bag for two-component polymer polystyrene foam, which comprises a bag main body, a separator, a protective part and an external bayonet, the bag main body is provided with an outer bag body and an inner bag body arranged in the outer bag body, and the inner bag body is locally connected with the outer bag body in a hot-pressing and fitting manner; the partition piece is arranged on the bag main body and can divide an inner cavity of the inner bag body into at least two containing cavities which are not communicated with each other, and the containing cavities are used for containing glue; moreover, the separator can deform under the action of external force, so that the at least two accommodating cavities are communicated with each other; the protective piece is detachably arranged on the partition piece in a covering mode so as to protect the partition piece; one end of the external bayonet is sealed and is fixedly inserted into one of the accommodating cavities, and the other end of the external bayonet is used for being connected with a sealing cover or a rubber nozzle. The packaging bag is novel and reasonable in structure, an operator can easily, conveniently and uniformly mix various types of glue, and the packaging bag is easy to master, easy and convenient to operate, time-saving and labor-saving, good in mixing quality and high in foaming ratio.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging bags, in particular to a packaging bag for two-component polymer foaming glue. Background Art

[0002] Two-component foam is a room temperature curing foam polymer material with excellent fire resistance and flexibility of use. It has good insulation and sealing properties, can resist high temperatures and limit hazards such as smoke, fire, and exhaust gas.

[0003] Regarding the packaging methods of two-component foam adhesive, there are currently three main types: double-barrel canning method, double-tube packaging method, and single-tube packaging method.

[0004] Among them, although the double-barrel canning method can achieve a more uniform mixing of the glue, it requires manual pouring of the materials and then mixing and stirring, which is time-consuming and labor-intensive, and is not suitable for hanging on the wall for use.

[0005] Although the double-tube installation method is more convenient to use, the mixing port is short and the mixing effect is not good, which affects the foaming ratio.

[0006] Although the single-tube packaging method is convenient for mixing and extrusion, its use steps are cumbersome and complicated, with a high error rate and high learning and use costs.

[0007] In view of this, the present utility model is proposed. Summary of the invention

[0008] In order to overcome the above-mentioned defects, the utility model provides a packaging bag for two-component polymer foam glue, which has a novel, reasonable and simple structure. The operator can easily and conveniently achieve uniform mixing of multiple different types of glue. It is easy to get started, easy to operate, saves time and effort, and has good mixing quality and high foaming ratio.

[0009] The utility model adopts the following technical solution to solve the technical problems: a packaging bag for two-component polymer foam adhesive, comprising a bag main body, a separator, a protective member and an external snap-on, wherein the bag main body is provided with an outer bag body and an inner bag body built into the outer bag body, and the inner bag body is partially connected to the outer bag body by hot pressing and bonding; the separator is provided on the bag main body, and can separate the inner cavity of the inner bag body into at least two mutually uncommunicating receiving cavities, and the receiving cavities are used to receive glue; moreover, the separator can also be deformed under the action of external force, so that at least two of the receiving cavities are connected to each other; the detachable cover of the protective member is provided on the separator to protect the separator; one end of the external snap-on is sealed and fixedly inserted into one of the receiving cavities, and the other end of the external snap-on is used to connect a sealing cover or a glue nozzle.

[0010] As a further improvement of the present invention, the separator is a diaphragm structure formed by heat-sealing the bag body.

[0011] As a further improvement of the present invention, the diaphragm structure is composed of two diaphragms arranged opposite to the bag body, and the two diaphragms can be connected in a sealing manner or can be separated under the action of an external force.

[0012] As a further improvement of the present invention, when the two membranes are sealed and connected, the peeling force between the two membranes is 5-30N.

[0013] As a further improvement of the present invention, the separator is configured as at least one strip; and the shape of the separator is selected from at least one of a straight strip and a wavy shape.

[0014] As a further improvement of the utility model, the outer bag body is provided with a bag body A, a bag opening A provided on one side of the bag body A, and a bag bottom A integrally and sealedly connected to the other side of the bag body A; the inner bag body is provided with a bag body B, a bag opening B provided on one side of the bag body B, and a bag bottom B integrally and sealedly connected to the other side of the bag body B;

[0015] Among them, the peripheral edge of the bag body B is partially connected to the bag body A by heat pressing; the bag opening B is partially connected to the bag opening A by heat sealing, so that the inner cavity of the outer bag body is formed into a closed cavity structure, and the bag opening B has a socket portion for inserting one end of the external clamp; the bag bottom B is not connected to the bag bottom A, and a gap is left.

[0016] As a further improvement of the present invention, the diaphragm structure is arranged on the bag body A and the bag body B.

[0017] As a further improvement of the present invention, a clamping strip is provided on the outer surface of the outer bag body and close to the separator;

[0018] The protective member comprises a sealing strip, and the sealing strip is disposed outside the partition and is clamped with the clamping strip.

[0019] As a further improvement of the utility model, one end of the external bayonet is inserted into the socket portion and is sealed and fixedly connected to the socket portion; the other end of the external bayonet is formed with a threaded section for connection with a sealing cover or a nozzle.

[0020] As a further improvement of the present invention, the shapes of the outer bag body and the inner bag body match each other; and both the outer bag body and the inner bag body are made of ethylene acrylic acid copolymer material; in addition, the protective member and the external bayonet are made of polypropylene material.

[0021] The beneficial effects of the utility model are as follows: ① The utility model innovatively sets a separator on the bag body, and by means of the separator, on the one hand, a plurality of mutually unconnected receiving cavities can be formed on the bag body to accommodate a variety of different types of glue; on the other hand, it can be easily realized that the plurality of receiving cavities are interconnected under the action of external force, so as to achieve uniform mixing of a variety of different types of glue. Therefore, compared with the prior art, the structure of the packaging bag of the utility model is novel, reasonable and simple, and the operator can easily and conveniently achieve uniform mixing of a variety of different types of glue, that is: using the packaging bag to mix glue is not only simple to use, easy to operate, time-saving and labor-saving, but also has good mixing quality and high foaming ratio, which well meets the market demand. ② The utility model also provides a protective member on the outer cover of the separator, which can prevent the separator from being accidentally touched and causing accidental mixing of glue, thereby improving the safety of the packaging bag in non-use states such as transportation. ③ The utility model is also equipped with an external clamp, which can facilitate the filling, extrusion and use of glue, and does not require cutting the bag mouth and poor extrusion like other bagged products. ④ The packaging bag of the utility model is not limited to the field of glue packaging, but can also be applied to other technical fields, such as food, coatings and other fields. It has a wide range of applications and strong versatility. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic structural diagram of a packaging bag for two-component polymer foam as shown in Example 1 of the utility model;

[0023] Figure 2 for Figure 1 A schematic diagram of a partial cross-sectional structure of the packaging bag shown;

[0024] Figure 3 for Figure 1 A schematic diagram of the forming relationship between the separator and the bag body in the packaging bag;

[0025] Figure 4 It is a schematic diagram of the partial cross-sectional structure of a packaging bag for two-component polymer foam shown in Example 2 of the utility model.

[0026] Combined with the accompanying drawings, the following description is given:

[0027] 1. Bag body; 10. Outer bag body; 100. Bag body A; 101. Bag bottom A;

[0028] 11. Inner bag body; 110. Accommodating cavity; 111. Bag body B; 112. Bag bottom B;

[0029] 113, socket; 12, card strip; 2, separator; 20, diaphragm; 3, protective part;

[0030] 4. External bayonet. DETAILED DESCRIPTION

[0031] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.

[0032] Embodiment 1:

[0033] Please see attached Figure 1 To Attachment Figure 3 As shown, this embodiment 1 provides a packaging bag for two-component polymer foam glue, which mainly includes a bag body 1, a separator 2, a protective member 3 and an external snap-on 4, wherein the bag body 1 is provided with an outer bag body 10 and an inner bag body 11 built into the outer bag body 10, and the inner bag body 11 is partially connected to the outer bag body 10 by hot pressing; the separator 2 is arranged on the bag body 1, and can divide the inner cavity of the inner bag body 11 into at least two mutually unconnected receiving cavities 110, and the receiving cavities 110 are used to receive glue; moreover, the separator 2 can also be deformed under the action of external force so that at least two of the receiving cavities 110 are connected to each other; the detachable cover of the protective member 3 is arranged on the separator 2 to protect the separator 2; one end of the external snap-on 4 is sealed and fixedly inserted into one of the receiving cavities 110, and the other end of the external snap-on 4 is used to connect a sealing cover or a glue nozzle.

[0034] Combined with the above structural description of the packaging bag, it can be known that the packaging method and the use method of the packaging bag are respectively:

[0035] Definition: Two-component polymer foam consists of A glue and B glue.

[0036] ① The packaging method of the packaging bag is:

[0037] S1: providing a semi-finished packaging bag, which includes the bag body 1 and the external clamping port 4 arranged on the bag body 1;

[0038] S2: using a filling machine to inject a predetermined amount of glue A from the external clamping port 4 into the inner cavity of the inner bag body 11;

[0039] Then, the separator 2 is formed on the bag body 1 to separate the inner cavity of the inner bag body 11 into two mutually unconnected receiving cavities 110; it can be understood that at this time, one of the receiving cavities 110 has been filled with glue A;

[0040] S3: Using the filling machine again, a predetermined amount of glue B is injected from the external clamping port 4 into the remaining receiving cavity 110; thus, the filling operation of glue A and glue B is completed;

[0041] Note: Before using the filling machine to fill glue, a proper amount of gas is usually first filled into the bag body 1 to expand the bag body 1; this is beneficial to the filling operation of the glue, and on the other hand, it can prevent the entire inner cavity of the inner bag body 11 from being contaminated with glue A when filling glue A, thereby ensuring the smooth filling operation of glue B;

[0042] S4: Install a sealing cover on the external clamping port 4 and cover the protective member 3 on the partition 2; thus, the packaging operation of the two-component polymer foam is completed.

[0043] ②The method of using the packaging bag is:

[0044] S1: The operator tears the protective member 3 off the packaging bag;

[0045] S2: The operator applies external force to the separator 2, such as gently tearing or kneading the separator 2, so that the separator 2 is deformed and broken, so that the two receiving chambers 110 are connected, and the glue A and the glue B are mixed; of course, in order to evenly mix the glue A and the glue B, the operator also needs to knead the bag body 1 by hand, which is equivalent to stirring and mixing the glue A and the glue B;

[0046] S3: After the glue A and the glue B are evenly mixed, the operator removes the sealing cover from the external bayonet 4 and installs the glue nozzle on the external bayonet 4, and then the glue can be used.

[0047] From the above, it can be seen that ① the utility model innovatively sets a separator on the bag body, and by means of the separator, on the one hand, a plurality of mutually unconnected receiving cavities can be formed on the bag body to accommodate a variety of different types of glue; on the other hand, it can be easily realized that the plurality of receiving cavities are interconnected under the action of external force, so as to achieve uniform mixing of a variety of different types of glue. Therefore, compared with the prior art, the structure of the packaging bag of the utility model is novel, reasonable and simple, and the operator can easily and conveniently achieve uniform mixing of a variety of different types of glue, that is: using the packaging bag to mix glue is not only simple to use, easy to operate, time-saving and labor-saving, but also has good mixing quality and high foaming ratio, which well meets the market demand. ② The utility model also provides a protective member on the outer cover of the separator, which can prevent the separator from being accidentally touched and causing accidental mixing of glue, thereby improving the safety of the packaging bag in non-use states such as transportation. ③ The utility model is also equipped with an external clamp, which can facilitate the filling, extrusion and use of glue, and does not require cutting the bag mouth and poor extrusion like other bagged products. ④ The packaging bag of the utility model is not limited to the field of glue packaging, but can also be applied to other technical fields, such as food, coatings and other fields. It has a wide range of applications and strong versatility.

[0048] The specific structure of the packaging bag described in this embodiment is described in detail below.

[0049] First, let us discuss the bag body 1 .

[0050] Please continue to refer to the attached Figure 1 To Attachment Figure 3 As shown, in this embodiment, the outer bag body 10 is provided with a bag body A100, a bag opening A provided on one side of the bag body A100, and a bag bottom A101 integrally and sealedly connected to the other side of the bag body A100.

[0051] The inner bag body 11 is provided with a bag body B111, a bag opening B provided on one side of the bag body B111, and a bag bottom B112 integrally and sealedly connected to the other side of the bag body B111.

[0052] Among them, the peripheral part of the bag body B111 is connected to the bag body A100 by hot pressing; the part of the bag opening B is heat-sealed to the bag opening A, so that the inner cavity of the outer bag body 10 is formed into a closed cavity structure, and the bag opening B has a socket part 113 for inserting one end of the external clamp 4; the bag bottom B112 is not connected to the bag bottom A101, and a gap is left.

[0053] The utility model adopts an inner and outer bag structure, which can, on the one hand, greatly enhance the overall strength of the bag body 1; on the other hand, if the inner bag 11 is accidentally ruptured when the separator 2 is deformed by applying external force, the glue can flow into the outer bag 10 to continue mixing and using, thereby avoiding product waste.

[0054] Further preferably, the shapes of the outer bag body 10 and the inner bag body 11 match each other, for example, the outer bag body 10 and the inner bag body 11 both adopt a square structure; of course, the present invention is not limited to this shape, and can be determined according to product design requirements.

[0055] In addition, the outer bag body 10 and the inner bag body 11 are preferably made of ethylene acrylic acid copolymer (EAA) material. Of course, the present invention is not limited to the above materials. According to product design requirements, materials such as LDPE, LLDPE, MLLDPE, CPP, VMCPP, EVA, E-MAA, EMA, or EBA can also be used. They all have good heat sealing, transparency, adaptability, permeability resistance and other functions, and can meet the packaging requirements of the product, so they are not described in detail here.

[0056] For further optimization, please refer to the attached Figure 2As shown, a clip strip 12 is provided on the outer surface of the outer bag body 10 and close to the partition 2 for installation of the protective member 3 .

[0057] Next, let us discuss the separator 2 .

[0058] Please continue to refer to the attached Figure 1 To Attachment Figure 3 As shown, in this embodiment, the separator 2 is a membrane structure formed by heat-sealing the bag body 1. That is, the separator 2 and the bag body 1 are an integrated structure.

[0059] The diaphragm structure can be further described as follows: the diaphragm structure is composed of two diaphragms 20 arranged opposite to the bag body 1, and the two diaphragms 20 can be connected in a sealed manner or separated under the action of an external force. It can be understood that based on the above description of the structure of the bag body 1, each of the diaphragms 20 is actually a part of the bag body A100 and a part of the bag body B111 connected together by heat sealing (that is, the diaphragm structure is arranged / formed on the bag body A100 and the bag body B111). For details, see the attached Figure 3 shown.

[0060] Further preferably, in view of the requirement for the volume of the receiving cavity 110, the diaphragm structure is arranged at the middle position of the bag body A100 and the bag body B111.

[0061] Further preferably, in the heat sealing operation, when the two film sheets 20 are sealed and connected, the peeling force between the two film sheets 20 is 5 to 30 N, and can be further preferably 15 to 20 N. By optimizing the heat sealing process, the peeling force between the two film sheets 20 is 5 to 30 N, which can ensure the sealing degree between the two adjacent receiving cavities 110 and facilitate the operator to easily separate the two film sheets 20 during use.

[0062] Further preferably, the separator 2 is configured as at least one strip; and the separator 2 is in the shape of a straight strip.

[0063] Next, let's talk about the protective member 3 and the external bayonet 4 .

[0064] Please continue to refer to the attached Figure 1 and attached Figure 2 As shown, in this embodiment, the protective member 3 protects the partition 2 to prevent the partition 2 from being accidentally touched and causing accidental mixing of glue, thereby improving the safety of the packaging bag in non-use conditions such as transportation.

[0065] In this embodiment, the protective member 3 has the following structure: the protective member 3 includes a sealing strip, the sealing strip is covered outside the partition 2 and is clamped with the clamping strip 12 .

[0066] And further preferably, the protective member 3 is made of polypropylene material. Of course, according to product design requirements, the protective member 3 can also be made of PET, HDPE, or PVC and other materials, which will not be described in detail here.

[0067] Please continue to refer to the attached Figure 1 and attached Figure 2 As shown, in this embodiment, the external bayonet 4 mainly serves the function of docking with a filling machine, a sealing cover or a nozzle.

[0068] In this embodiment, one end of the external bayonet 4 is inserted into the socket portion 113 and is sealed and fixedly connected to the socket portion 113; the other end of the external bayonet 4 is formed with a threaded section for connecting with a sealing cover or a nozzle.

[0069] In addition, further preferably, the external bayonet 4 is also made of polypropylene. Of course, according to product design requirements, the external bayonet 4 can also be made of PET, HDPE, or PVC, etc., which will not be described in detail here.

[0070] In addition, the diameter of the external bayonet 4 can be configured to be between 10 and 30 mm, such as conventional sizes such as 10 mm, 13 mm, 15 mm, 20 mm, or 25 mm, so as to be compatible with most nozzles on the market, thereby improving the versatility and ease of use of the packaging bag.

[0071] Embodiment 2:

[0072] The second embodiment also provides a packaging bag for two-component polymer foam. Compared with the first embodiment, the main difference of the second embodiment is that the shape of the separator 2 is different from that of the first embodiment.

[0073] For details, please refer to the attached Figure 4 As shown, in this embodiment 2, the shape of the separator 2 is wavy. Furthermore, the wavy shape can be preferably a square wave, a sine wave, a triangle wave, etc., which is not limited in the present invention.

[0074] Different from the straight-strip separator 2 provided in Example 1, the separator 2 in this Example 2 is designed to be wavy in shape, which can make the separator 2 easier to peel off and make the glue mixing operation simpler and more labor-saving.

[0075] Note: In addition to the above-mentioned differences, the specific structures of the bag body 1, the protective member 3 and the external snap-on 4 in the packaging bag structure described in this embodiment 2, as well as the molding method of the separator 2, can all adopt the same technical means as in embodiment 1, so they will not be described here.

[0076] In summary, the packaging bag for two-component polymer foam glue of the utility model has a novel, reasonable and simple structure, and the operator can easily and conveniently achieve uniform mixing of multiple different types of glues, which is easy to use, easy to operate, time-saving and labor-saving, and has good mixing quality and high foaming ratio, which well meets the market demand. Moreover, the packaging bag of the utility model has good protective effect, wide application field and strong versatility.

[0077] In the above description, many specific details are described to facilitate a full understanding of the present invention. However, the above description is only a preferred embodiment of the present invention. The present invention can be implemented in many other ways different from those described herein, so the present invention is not limited by the specific implementation disclosed above. At the same time, any person familiar with the technical field can make many possible changes and modifications to the technical solution of the present invention by using the methods and technical contents disclosed above without departing from the scope of the technical solution of the present invention, or modify it into an equivalent embodiment of equivalent changes. Any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the scope of protection of the technical solution of the present invention.

Claims

1. A packaging bag for two-component polymer foam, characterized in that: The bag body (1) comprises a bag main body (1), a partition (2), a protective member (3) and an external snap-on connector (4), wherein the bag main body (1) is provided with an outer bag body (10) and an inner bag body (11) built into the outer bag body (10), and the inner bag body (11) is partially connected to the outer bag body (10) by heat-pressing bonding; The separator (2) is arranged on the bag body (1) and is capable of dividing the inner cavity of the inner bag body (11) into at least two mutually incommunicable receiving cavities (110), wherein the receiving cavities (110) are used to receive glue; moreover, the separator (2) is also capable of deforming under the action of an external force so that at least two of the receiving cavities (110) are mutually communicated; The protective member (3) is detachably covered on the partition (2) to protect the partition (2); One end of the external bayonet (4) is sealed and fixedly inserted into one of the receiving cavities (110), and the other end of the external bayonet (4) is used to connect to a sealing cover or a nozzle.

2. The packaging bag for two-component polymer foam according to claim 1, characterized in that: The separator (2) is a membrane structure formed by heat-sealing the bag body (1).

3. The packaging bag for two-component polymer foam according to claim 2, characterized in that: The diaphragm structure is composed of two diaphragms (20) arranged opposite to each other on the bag body (1); the two diaphragms (20) can be connected in a sealing manner or can be separated under the action of an external force.

4. The packaging bag for two-component polymer foam according to claim 3, characterized in that: When the two membrane sheets (20) are sealed and connected, the peeling force between the two membrane sheets (20) is 5 to 30N.

5. The packaging bag for two-component polymer foam according to claim 2, characterized in that: The separator (2) is configured as at least one strip; and the shape of the separator (2) is selected from at least one of a straight strip shape and a wavy shape.

6. The packaging bag for two-component polymer foam according to claim 2, characterized in that: The outer bag body (10) is provided with a bag body main body A (100), a bag opening A provided on one side of the bag body main body A (100), and a bag bottom A (101) integrally and sealedly connected to the other side of the bag body main body A (100); The inner bag body (11) is provided with a bag body main body B (111), a bag opening B provided on one side of the bag body main body B (111), and a bag bottom B (112) integrally and sealedly connected to the other side of the bag body main body B (111); Part of the periphery of the bag body B (111) is connected to the bag body A (100) by heat-pressing; a part of the bag opening B is connected to the bag opening A by heat-sealing, so that the inner cavity of the outer bag body (10) is formed into a closed cavity structure, and the bag opening B has a socket portion (113) for inserting one end of the external clamp (4); the bag bottom B (112) is not connected to the bag bottom A (101), and a gap is left.

7. The packaging bag for two-component polymer foam according to claim 6, characterized in that: The diaphragm structure is disposed on the bag body A (100) and the bag body B (111).

8. The packaging bag for two-component polymer foam according to claim 2, characterized in that: A clamping strip (12) is provided on the outer surface of the outer bag body (10) and at a position close to the partition (2); The protective member (3) comprises a sealing strip, which is arranged outside the partition member (2) and is clamped with the clamping strip (12).

9. The packaging bag for two-component polymer foam according to claim 6, characterized in that: One end of the external bayonet (4) is inserted into the socket portion (113) and is sealed and fixedly connected to the socket portion (113); The other end of the external bayonet (4) is formed with a threaded section for connection with a sealing cover or a nozzle.

10. The packaging bag for two-component polymer foam according to claim 1, characterized in that: The shapes of the outer bag body (10) and the inner bag body (11) match each other; and both the outer bag body (10) and the inner bag body (11) are made of ethylene acrylic acid copolymer material; In addition, the protective piece (3) and the external bayonet (4) are both made of polypropylene material.

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