CN216103646U - Composite hose of secondary injection head - Google Patents
Composite hose of secondary injection head Download PDFInfo
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- CN216103646U CN216103646U CN202121166113.0U CN202121166113U CN216103646U CN 216103646 U CN216103646 U CN 216103646U CN 202121166113 U CN202121166113 U CN 202121166113U CN 216103646 U CN216103646 U CN 216103646U
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Abstract
The utility model discloses a composite hose of a secondary injection head, which comprises a hose body and an injection head, wherein the injection head comprises a primary injection molding hose shoulder and a secondary injection molding part which are respectively injected at the opening part of the hose body; the primary injection molding pipe shoulder comprises an inner arc surface part, the top end of the outer wall of the inner arc surface part is provided with a boss part, the outer wall surface of the inner arc surface part is attached to the inner wall surface of the pipe body at the opening part position, and the side surface of the boss part is attached to the section of the pipe body at the opening part position; the post injection molding comprises integrated into one piece's mouth of pipe portion and the secondary pipe shoulder of moulding plastics, and the secondary pipe shoulder of moulding plastics includes outer cambered surface portion and connecting portion, and connecting portion connect between mouth of pipe portion and outer cambered surface portion, and the thickness of connecting portion is greater than the thickness of outer cambered surface portion, and the interior wall of outer cambered surface portion is laminated with the outer wall of pipe shaft in the oral area position, and the bottom surface of connecting portion is laminated with the top surface of boss portion. The utility model has the advantage of stable sealing performance, and has the functions of high temperature resistance, paste resistance and ether cracking solvent resistance.
Description
Technical Field
The utility model relates to a composite hose, in particular to a composite hose of a secondary injection head.
Background
The technology of composite flexible tubes is used in daily chemical packaging from the last 90 years, mainly in toothpaste packaging, and with the gradual development of the technology, the technology has great advantages in cost and product performance, and the technology gradually starts to be used in food packaging, medicine packaging and cosmetic packaging after 21 st century to replace the original aluminum tubes and extrusion tubes.
The injection head technology of the existing composite hose is often one-step molding, namely, after a composite sheet is made into a hose body of the composite hose, the injection head of the composite hose is directly injected at the opening part of the hose body in a one-step molding mode, and the injection head has the following defects: the joint between the pipe shoulder and the pipe body of the injection head is directly exposed on the outer surface of the composite hose, and after the high-temperature and high-humidity environment and the penetration of paste in the composite hose, the joint has the risk of cracking, so that the connection sealing performance of the pipe shoulder and the pipe body is damaged, and the substances in the pipe are leaked or deteriorated.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is as follows: provides a composite hose of a secondary injection head.
The technical scheme adopted by the utility model is as follows:
the utility model provides a compound hose of secondary injection head, includes pipe shaft and injection head, the pipe shaft is made by the compound sheet material of multilayer, its characterized in that: the injection head comprises a primary injection molding pipe shoulder and a secondary injection molding part which are respectively injected at the opening part of the pipe body; the one-time injection molding pipe shoulder comprises an inner arc surface part, the top end of the outer wall of the inner arc surface part is provided with a boss part, the outer wall surface of the inner arc surface part is attached to the inner wall surface of the pipe body at the opening part, and the side surface of the boss part is attached to the section of the pipe body at the opening part; the secondary injection molding part comprises an integrally formed pipe orifice part and a secondary injection molding pipe shoulder, the secondary injection molding pipe shoulder comprises an outer arc surface part and a connecting part, the connecting part is connected between the pipe orifice part and the outer arc surface part, the thickness of the connecting part is larger than that of the outer arc surface part, namely the connecting part forms a bottom surface which is not connected with the outer arc surface part, the inner wall surface of the outer arc surface part is in the orifice part position and the outer wall surface laminating of the pipe body, and the bottom surface of the connecting part is laminated with the top surface of the boss part.
Therefore, the utility model can completely wrap the opening position of the tube body by utilizing the primary injection molding tube shoulder and the secondary injection molding part, prevents the joint seam of the composite hose tube shoulder and the tube body from being exposed in the air or contacting with the content of the composite hose, has the advantage of stable sealing performance, and plays the roles of high temperature resistance, paste resistance and ether cracking resistance.
Preferably: the primary injection molding pipe shoulder and the secondary injection molding part are both formed by injection molding of PE materials.
As a preferred embodiment of the present invention: the multilayer composite sheet is formed by compounding an outer layer, a first bonding layer, an intermediate layer, a second bonding layer and a heat-sealing inner layer from outside to inside in sequence, the outer layer is a polypropylene PP (polypropylene) high-transparency layer or a polyester PET (polyethylene terephthalate) high-transparency layer, the intermediate layer is an aluminum foil layer with high metal brightness or an aluminum-plated material layer with high metal brightness, the aluminum-plated material layer is aluminum-plated PET, aluminum-plated PP or aluminum-plated PE, and the intermediate layer is a high-gloss silicon-plated polyester PET layer or a high-gloss polyester PET layer. Therefore, the transparency of the outer layer is very high, which is several times or dozens of times higher than that of the polyethylene material used conventionally, so that the highlight and high-gloss effect of the middle layer can be exposed, and the mechanical strength of the pipe body can be improved by the selected outer layer material.
Preferably: the first bonding layer is a polyurethane glue layer or a terpolymer resin layer, and the second bonding layer is a polyethylene resin layer.
As a preferred embodiment of the present invention: the multilayer composite sheet is formed by sequentially compounding an outer layer, a first bonding layer, a middle layer, a second bonding layer and a heat-sealing inner layer from outside to inside, wherein the outer layer is a VISTA AXX special elastomer, the middle layer is any one of an aluminum foil, an aluminum-plated material layer and a silicon-plated material layer, and the heat-sealing inner layer is a heat-sealable polyethylene material layer. Therefore, the composite hose can form a soft touch feeling similar to leather by arranging the outer layer of the soft touch material consisting of the VISTA AXX special elastomer on the outermost layer of the composite hose, can be ensured to bear harsher external environment influence in circulation and packaging, can be ensured not to deform and smooth and can be prevented from the phenomenon that the quality guarantee period is reduced due to the permeation of the content of the composite hose; moreover, compared with the existing composite hose, the cost is only improved by 0.05%.
Preferably: the first bonding layer and the second bonding layer are any one of a polyethylene resin layer, a terpolymer resin layer and a polyurethane glue layer.
As a preferred embodiment of the present invention: the multilayer composite sheet is formed by sequentially compounding an outer layer, a first bonding layer, a middle layer, a second bonding layer and a heat-sealing inner layer from outside to inside, and either one or both of the compounding surface of the outer layer and the compounding surface of the heat-sealing inner layer are provided with honeycomb-shaped groove textures. Therefore, the interlayer peeling strength between the outer layer and the middle layer and between the heat-sealing inner layer and the middle layer can be greatly improved.
Preferably: the depth of the honeycomb groove texture is between 0.8 μm and 1.2 μm.
Preferably: the outer layer is any one of a polyethylene film, a polypropylene film and a polyester film; the middle layer is a nylon material layer or a polyester material layer; the heat-seal inner layer is a polyethylene film.
Preferably: the first bonding layer is any one of a polyethylene resin layer, a terpolymer resin layer and a polyurethane glue layer, and the second bonding layer is any one of a polyethylene resin layer, a terpolymer resin layer and a polyurethane glue layer.
Compared with the prior art, the utility model has the following beneficial effects:
the utility model adopts the primary injection molding pipe shoulder and the secondary injection molding part to respectively inject the injection head at the mouth position of the pipe body, can completely wrap the mouth position of the pipe body by utilizing the primary injection molding pipe shoulder and the secondary injection molding part, avoids the joint seam of the pipe shoulder and the pipe body of the composite hose from being exposed in the air or contacting with the content of the composite hose, has the advantage of stable sealing performance, and plays the roles of high temperature resistance, paste resistance and ether cracking resistance solvent.
Drawings
The utility model is described in further detail below with reference to the following figures and specific examples:
FIG. 1 is a schematic structural view of the composite hose of the present invention;
FIG. 2 is an exploded view of a cross-sectional structure of the composite hose of the present invention;
FIG. 3 is a schematic cross-sectional view of the once-injection shoulder of the present invention being injection molded onto a tube body;
FIG. 4 is a schematic cross-sectional view of the utility model as an over-molded part is being injection molded onto the body;
fig. 5 is a schematic cross-sectional structure of a multilayer composite sheet in the present invention.
Detailed Description
The present invention will be described in detail with reference to the following embodiments and the accompanying drawings to help those skilled in the art to better understand the inventive concept of the present invention, but the scope of the claims of the present invention is not limited to the following embodiments, and all other embodiments obtained without inventive work by those skilled in the art will fall within the scope of the present invention without departing from the inventive concept of the present invention.
In the description of the present invention, it is to be understood that the terms "top" and "bottom" are used merely for convenience in describing the present invention or to simplify the description, and are not intended to indicate or imply any particular orientation required by the present invention and therefore should not be considered as limiting the present invention.
Example one
As shown in fig. 1 to 4, the utility model discloses a composite hose of a secondary injection head, which comprises a hose body 1 and an injection head, wherein the hose body 1 is made of multilayer composite sheets, and is characterized in that: the injection head comprises a primary injection molding pipe shoulder 2 and a secondary injection molding part 3 which are respectively injected at the opening part position 1a of the pipe body 1; the once injection molding pipe shoulder 2 comprises an inner arc surface part 2-1, the top end of the outer wall of the inner arc surface part 2-1 is provided with a boss part 2-2, the outer wall surface of the inner arc surface part 2-1 is attached to the inner wall surface of the pipe body 1 at the opening part position 1a, and the side surface 2-2a of the boss part 2-2 is attached to the section 1b of the pipe body 1 at the opening part position 1 a; the secondary injection molding part 3 comprises a pipe opening part 3-1 and a secondary injection molding pipe shoulder 3-2 which are integrally formed, the secondary injection molding pipe shoulder 3-2 comprises an outer arc surface part 3-2-1 and a connecting part 3-2-2, the connecting part 3-2-2 is connected between the pipe opening part 3-1 and the outer arc surface part 3-2-1, the thickness of the connecting part 3-2-2 is larger than that of the outer arc surface part 3-2-1, namely the connecting part 3-2-2 forms a bottom surface 3-2-2a which is not connected with the outer arc surface part 3-2-1, the inner wall surface of the outer arc surface part 3-2-1 is attached to the outer wall surface of the pipe body 1 at the opening part position 1a, and the bottom surface 3-2-2a of the connecting part 3-2-2 is attached to the boss part 2-2 Top surface 2-2 b.
Therefore, the utility model can utilize the primary injection molding pipe shoulder 2 and the secondary injection molding part 3 to completely wrap the mouth part position 1a of the pipe body 1, prevents the joint of the pipe shoulder and the pipe body of the composite hose from being exposed in the air or contacting with the content of the composite hose, has the advantage of stable sealing performance, and plays the roles of high temperature resistance, paste resistance and ether cracking resistance solvent.
The above is a basic implementation manner of the first embodiment, and further optimization, improvement and limitation may be performed on the basis of the basic implementation manner:
preferably: the primary injection molding pipe shoulder 2 and the secondary injection molding part 3 are both formed by injection molding of PE materials.
Example two
On the basis of the first embodiment, the second embodiment further adopts the following preferred structure:
the composite hose of the present invention can adopt a pipe body 1 made of any multilayer composite sheet, as shown in fig. 5, the present invention discloses several of the multilayer composite sheets with special effects:
the multilayer composite sheet is formed by compounding an outer layer A, a first bonding layer B, an intermediate layer C, a second bonding layer D and a heat-sealing inner layer E from outside to inside in sequence, wherein the outer layer A is a polypropylene PP (polypropylene) high-transparency layer or a polyester PET (polyethylene terephthalate) high-transparency layer, the intermediate layer C is an aluminum foil layer with high metal brightness or an aluminum-plated material layer with high metal brightness, the aluminum-plated material layer is aluminum-plated PET, aluminum-plated PP or aluminum-plated PE, and the intermediate layer C is a high-brightness silicon-plated polyester PET layer or a high-brightness polyester PET layer. Therefore, the transparency of the outer layer A is very high, which is several times or dozens of times higher than that of the polyethylene material which is used conventionally, the highlight and high-gloss effect of the middle layer C can be exposed, and the mechanical strength of the pipe body can be improved by the selected material of the outer layer A.
Preferably: the first bonding layer B is a polyurethane glue layer or a terpolymer resin layer, and the second bonding layer D is a polyethylene resin layer.
And secondly, the multilayer composite sheet is formed by compounding an outer layer A, a first bonding layer B, a middle layer C, a second bonding layer D and a heat-sealing inner layer E from outside to inside in sequence, wherein the outer layer A is a VISTA AXX special elastomer, the middle layer C is any one of an aluminum foil, an aluminum-plated material layer and a silicon-plated material layer, and the heat-sealing inner layer E is a heat-sealable polyethylene material layer. Therefore, the composite hose can form a soft touch feeling similar to leather by arranging the outer layer of the soft touch material consisting of the VISTA AXX special elastomer on the outermost layer of the composite hose, can be ensured to bear harsher external environment influence in circulation and packaging, can be ensured not to deform and smooth and can be prevented from the phenomenon that the quality guarantee period is reduced due to the permeation of the content of the composite hose; moreover, compared with the existing composite hose, the cost is only improved by 0.05%.
Preferably: the first bonding layer B and the second bonding layer D are any one of a polyethylene resin layer, a terpolymer resin layer and a polyurethane glue layer.
And thirdly, the multilayer composite sheet is formed by compounding an outer layer A, a first bonding layer B, a middle layer C, a second bonding layer D and a heat-sealing inner layer E from outside to inside in sequence, and either or both of the composite surface of the outer layer A and the composite surface of the heat-sealing inner layer E are provided with honeycomb-shaped groove textures. Therefore, the interlayer peeling strength between the outer layer and the middle layer and between the heat-sealing inner layer and the middle layer can be greatly improved.
Preferably: the depth of the honeycomb groove texture is between 0.8 μm and 1.2 μm.
Preferably: the outer layer A is any one of a polyethylene film, a polypropylene film and a polyester film; the middle layer C is a nylon material layer or a polyester material layer; the heat-sealing inner layer E is a polyethylene film.
Preferably: the first bonding layer B is any one of a polyethylene resin layer, a terpolymer resin layer and a polyurethane glue layer, and the second bonding layer D is any one of a polyethylene resin layer, a terpolymer resin layer and a polyurethane glue layer.
The present invention is not limited to the above embodiments, and various other equivalent modifications, substitutions and alterations can be made without departing from the basic technical concept of the utility model as described above, according to the common technical knowledge and conventional means in the field.
Claims (10)
1. The utility model provides a compound hose of secondary injection head, includes pipe shaft (1) and injection head, pipe shaft (1) is made by the compound sheet material of multilayer, its characterized in that: the injection head comprises a primary injection molding pipe shoulder (2) and a secondary injection molding part (3) which are respectively injected at the opening position (1a) of the pipe body (1); the once injection molding pipe shoulder (2) comprises an inner arc surface part (2-1), the top end of the outer wall of the inner arc surface part (2-1) is provided with a boss part (2-2), the outer wall surface of the inner arc surface part (2-1) is attached to the inner wall surface of the pipe body (1) at the opening part position (1a), and the side surface (2-2a) of the boss part (2-2) is attached to the section (1b) of the pipe body (1) at the opening part position (1 a); the secondary injection molding part (3) is composed of a pipe opening part (3-1) and a secondary injection molding pipe shoulder (3-2) which are integrally molded, the secondary injection molding pipe shoulder (3-2) comprises an outer arc surface part (3-2-1) and a connecting part (3-2-2), the connecting part (3-2-2) is connected between the pipe opening part (3-1) and the outer arc surface part (3-2-1), the thickness of the connecting part (3-2-2) is larger than that of the outer arc surface part (3-2-1), the inner wall surface of the outer arc surface part (3-2-1) is attached to the outer wall surface of the pipe body (1) at the opening part position (1a), and the bottom surface (3-2-2a) of the connecting part (3-2-2) is attached to the top surface (2-2b) of the boss part (2-2).
2. The composite hose of the secondary injection head of claim 1, wherein: the primary injection molding pipe shoulder (2) and the secondary injection molding part (3) are both formed by injection molding of PE materials.
3. The composite hose of the secondary injection head according to claim 1 or 2, wherein: multilayer composite sheet is formed by outer (A), first tie coat (B), intermediate level (C), second tie coat (D), heat-seal inlayer (E) complex in proper order from outside to inside, outer (A) is the high stratum lucidum of polypropylene PP material or the high stratum lucidum of polyester PET material, intermediate level (C) is the aluminium foil layer or aluminizes the material layer, intermediate level (C) is silicon-plated polyester PET layer or polyester PET layer.
4. The composite hose of the secondary injection head of claim 3, wherein: the first bonding layer (B) is a polyurethane glue layer or a terpolymer resin layer, and the second bonding layer (D) is a polyethylene resin layer.
5. The composite hose of the secondary injection head according to claim 1 or 2, wherein: the multilayer composite sheet is formed by compounding an outer layer (A), a first bonding layer (B), an intermediate layer (C), a second bonding layer (D) and a heat-sealing inner layer (E) from outside to inside in sequence, wherein the outer layer (A) is a VISTA AXX special elastomer, the intermediate layer (C) is any one of an aluminum foil, an aluminum-plated material layer and a silicon-plated material layer, and the heat-sealing inner layer (E) is a heat-sealable polyethylene material layer.
6. The composite hose of the secondary injection head of claim 5, wherein: the first bonding layer (B) and the second bonding layer (D) are any one of a polyethylene resin layer, a terpolymer resin layer and a polyurethane glue layer.
7. The composite hose of the secondary injection head according to claim 1 or 2, wherein: the multilayer composite sheet is formed by sequentially compounding an outer layer (A), a first bonding layer (B), a middle layer (C), a second bonding layer (D) and a heat-sealing inner layer (E) from outside to inside, and either or both of the compounding surface of the outer layer (A) and the compounding surface of the heat-sealing inner layer (E) are provided with honeycomb-shaped groove textures.
8. The composite hose of the secondary injection head of claim 7, wherein: the depth of the honeycomb groove texture is between 0.8 μm and 1.2 μm.
9. The composite hose of the secondary injection head of claim 7, wherein: the outer layer (A) is any one of a polyethylene film, a polypropylene film and a polyester film; the middle layer (C) is a nylon material layer or a polyester material layer; the heat-sealing inner layer (E) is a polyethylene film.
10. The composite hose of the secondary injection head of claim 7, wherein: the first bonding layer (B) is any one of a polyethylene resin layer, a terpolymer resin layer and a polyurethane glue layer, and the second bonding layer (D) is any one of a polyethylene resin layer, a terpolymer resin layer and a polyurethane glue layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121166113.0U CN216103646U (en) | 2021-05-27 | 2021-05-27 | Composite hose of secondary injection head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121166113.0U CN216103646U (en) | 2021-05-27 | 2021-05-27 | Composite hose of secondary injection head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216103646U true CN216103646U (en) | 2022-03-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121166113.0U Active CN216103646U (en) | 2021-05-27 | 2021-05-27 | Composite hose of secondary injection head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216103646U (en) |
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2021
- 2021-05-27 CN CN202121166113.0U patent/CN216103646U/en active Active
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