CN220373880U - Cooling device for hot melt adhesive film production - Google Patents
Cooling device for hot melt adhesive film production Download PDFInfo
- Publication number
- CN220373880U CN220373880U CN202321570886.4U CN202321570886U CN220373880U CN 220373880 U CN220373880 U CN 220373880U CN 202321570886 U CN202321570886 U CN 202321570886U CN 220373880 U CN220373880 U CN 220373880U
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- Prior art keywords
- cooling
- opening
- blowing
- air
- control sheet
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- 238000001816 cooling Methods 0.000 title claims abstract description 77
- 239000004831 Hot glue Substances 0.000 title claims abstract description 28
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 15
- 238000007664 blowing Methods 0.000 claims abstract description 41
- 230000001105 regulatory effect Effects 0.000 claims abstract description 26
- 230000000712 assembly Effects 0.000 claims description 15
- 238000000429 assembly Methods 0.000 claims description 15
- 229920000742 Cotton Polymers 0.000 claims description 7
- 238000009423 ventilation Methods 0.000 claims description 4
- 238000004804 winding Methods 0.000 abstract description 5
- 230000037303 wrinkles Effects 0.000 abstract description 5
- 239000004033 plastic Substances 0.000 abstract description 2
- 239000004743 Polypropylene Substances 0.000 description 13
- 239000000463 material Substances 0.000 description 10
- -1 polypropylene Polymers 0.000 description 8
- 229920001155 polypropylene Polymers 0.000 description 8
- 230000003044 adaptive effect Effects 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 6
- 239000002318 adhesion promoter Substances 0.000 description 6
- 238000006116 polymerization reaction Methods 0.000 description 6
- 238000007789 sealing Methods 0.000 description 6
- 229910000077 silane Inorganic materials 0.000 description 6
- 238000004378 air conditioning Methods 0.000 description 5
- 239000003963 antioxidant agent Substances 0.000 description 5
- 230000003078 antioxidant effect Effects 0.000 description 5
- 229920006026 co-polymeric resin Polymers 0.000 description 5
- 229920001577 copolymer Polymers 0.000 description 5
- 238000002425 crystallisation Methods 0.000 description 5
- 230000008025 crystallization Effects 0.000 description 5
- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical group C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000009833 condensation Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000012768 molten material Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- 239000000110 cooling liquid Substances 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000012943 hotmelt Substances 0.000 description 2
- 238000004898 kneading Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000010345 tape casting Methods 0.000 description 2
- 239000002313 adhesive film Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Landscapes
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model relates to a cooling device for hot melt adhesive film production, which relates to the technical field of plastic cooling and comprises a blowing device, a plurality of cold air self-adaptive regulating devices and a cooling circulation device, wherein the blowing device is provided with a plurality of blowing openings between a winding mechanism and a forming mechanism, the cooling circulation device is provided with cooling pipes which are spanned on the blowing openings, the cold air self-adaptive regulating devices are arranged on the cooling pipes, the opening of the cold air self-adaptive regulating devices is changed along with the wind speed of each blowing opening, the opening of the cold air self-adaptive regulating devices is small when the wind speed of the blowing opening is high, the opening of the cold air self-adaptive regulating devices is large when the wind speed of the blowing opening is small, the film forming quality is good, and wrinkles are not easy to occur.
Description
Technical Field
The utility model relates to the technical field of plastic cooling, in particular to a cooling device for hot melt adhesive film production.
Background
In the existing polyester hot melt adhesive molding process, molten materials are extruded from an extruder to a molding mechanism, the molding mechanism comprises a cooling roller and a coating box, a gap for a film to pass through is formed between the coating box and the cooling roller, then the film flows out from the gap, is cooled and crystallized immediately to form a film, and is rolled by a rolling mechanism through a series of cooling processes, but folds can occur in the crystallization process due to uneven cooling, slower crystallization speed and the like, the folds are easy to generate bubbles when the hot melt adhesive film is used to influence the bonding effect, and the appearance of the product is unsightly due to the folds. Wrinkles generated by the slow crystallization rate also cause the problem of uneven film thickness after film formation.
Disclosure of Invention
In order to overcome the technical defects in the prior art, the cooling device for hot melt adhesive film production provided by the utility model has the advantages of good film forming quality and difficult occurrence of wrinkles.
The technical scheme adopted by the utility model is as follows:
the cooling device for hot melt adhesive film production comprises a blowing device, a plurality of cold air self-adaptive regulating devices and a cooling circulation device, wherein the blowing device is provided with a plurality of blowing openings, the cooling circulation device is provided with cooling pipes which span over the blowing openings, each cold air self-adaptive regulating device is arranged on the cooling pipe, the opening of the cold air self-adaptive regulating device is changed along with the air speed of each blowing opening, the opening of the cold air self-adaptive regulating device is small when the air speed of the blowing opening is large, the opening of the cold air self-adaptive regulating device is large when the air speed of the blowing opening is small, a diversion cotton rope is wound on the cooling pipe, and the two ends of the cooling pipe are high, middle and low.
Preferably, the self-adaptive control device for cold air comprises two control sheet assemblies which are symmetrically arranged, the two control sheet assemblies are rotatably arranged on the cooling pipe, the control sheet assemblies are separated from each other at the bottom of the cooling pipe when in a free state, and the bottoms of the control sheet assemblies are mutually close to each other until mutually abutting when the air blowing device blows air.
Preferably, the control piece subassembly includes wind-guiding control piece and aperture feedback torsional spring, the torsion direction of aperture feedback torsional spring makes two wind-guiding control pieces break away from each other, and two wind-guiding control pieces all articulate on the cooling tube.
Preferably, each of the air guiding control sheets is provided with an air guiding surface inclined to the direction of the other air guiding control sheet.
Preferably, each air guiding control sheet is provided with a basic ventilation grid.
The beneficial effects of the utility model are as follows:
the cooling circulation device is provided with cooling pipes which transversely span the air outlets, the cooling circulation device circulates the cooling liquid to the cooling pipes, the air blown by the air outlets is cooled down to the cooling pipes, the air conditioning adaptive regulating devices are arranged on the cooling pipes, the opening degree of the air conditioning adaptive regulating devices is changed along with the air speeds of the air outlets, the opening degree of the air conditioning adaptive regulating devices is small when the air speeds of the air outlets are high, and the opening degree of the air conditioning adaptive regulating devices is large when the air speeds of the air outlets are low, so that the effect is formed, namely, the air speeds of the air outlets are low, the opening degree of the air conditioning adaptive regulating devices is high, and more air flows are forced to flow from the cooling pipes, so that the air speeds of the air outlets can be sufficiently cooled down, and the sufficient rapid and uniform cooling of the material can be ensured in all areas of the material, and the wrinkles are reduced.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model.
Fig. 2 is an enlarged schematic view of the structure at a in fig. 1.
FIG. 3 is a schematic diagram of the closed-loop structure of the adaptive control device.
Fig. 4 is a schematic diagram of a structure of the cold air adaptive control device when the opening degree is maximum.
FIG. 5 is a schematic view of the position of the water tank.
Fig. 6 is a schematic view of a diversion cotton rope structure.
Reference numerals illustrate:
11. a forming mechanism; 12. a winding mechanism;
21. a blowing device; 211. blowing an air port; 22. a cold air self-adaptive regulating device; 221. a control plate assembly; 2211. air guide control slices; 22111. an air guiding surface; 22112. a base ventilation grille; 2212. an opening feedback torsion spring; 23. a cooling circulation device; 231. a cooling tube; 2311. a diversion cotton rope; 232. a compressor; 24. a water tank.
Detailed Description
The utility model is further described below with reference to the accompanying drawings:
as shown in fig. 1-6, this embodiment provides a cooling device for hot melt adhesive film production, the cooling device is a component of a hot melt adhesive film production apparatus, the hot melt adhesive film production apparatus further includes an extruder for heating and extruding, a forming mechanism 11 for forming a molten material, and a winding mechanism 12 for winding up the hot melt adhesive film, the cooling device includes a blower 21, a plurality of cold air self-adaptive regulating devices 22, and a cooling circulation device 23, the blower 21 is provided with a plurality of air blowing ports 211 directed between the winding mechanism 12 and the forming mechanism 11, the air blown out by the air blowing ports 211 can accelerate crystallization of the molten material, the formation of film forming folds due to deformation of the material which is not completely cooled, the cooling circulation device 23 has a cooling pipe 231 which spans over each air blowing port 211, the cooling circulation device 23 pumps the cooling liquid to the cooling pipe 231, the air blown out by the air blowing ports 211 is cooled down to the cooling pipe 231, each cold air self-adaptive regulating device 22 is installed on the cooling pipe 231, the opening degree of each cold air self-adaptive regulating device 22 is changed along with each air blowing 211 wind speed, the opening of each air self-adaptive device 22 is small when the opening degree of the wind speed of the air blowing port 211 is large, the opening degree of the air self-adaptive device is small when the opening degree of the wind speed of the air opening 211 is small, the opening degree of the air speed of the air self-adaptive wind speed is small enough to form a large enough when the cooling effect is small when the opening degree of the cooling pipe is small, and the cooling air is more well has a sufficient cooling effect and can be well cooled when the opening and has a sufficient opening and has been formed.
The cold air self-adaptive regulating device 22 comprises two control sheet assemblies 221 which are symmetrically arranged, the two control sheet assemblies 221 are rotatably arranged on the cooling pipe 231, when the control sheet assemblies 221 are in a free state, the bottoms of the cooling pipe 231 are separated from each other, when the air blowing device 21 blows air, the bottoms of the control sheet assemblies 221 are mutually close until being mutually abutted to enable the cold air self-adaptive regulating device 22 to be closed, when the control sheet assemblies 221 are in the free state, the air blowing opening 211 is in a state without wind out, the air blowing device 21 is started, the air blowing opening 211 blows air towards the cooling pipe 231, the bottoms of the control sheet assemblies 221 are mutually close under the influence of wind force of the air blowing opening 211, the wind speeds of the air blowing opening 211 cannot be consistent due to the fact that the air blowing device 21 is provided with a plurality of air blowing openings 211 crossing the forming mechanism 11, wind fluctuation can also occur when the air blowing device 21 runs, and the uniform heat dissipation of materials is realized by controlling the cold air flow through the control sheet assemblies 221 due to the fact that the speed of the materials passes through the forming mechanism 11 is relatively high.
The control sheet component 221 comprises an air guiding control sheet 2211 and an opening feedback torsion spring 2212, the two air guiding control sheets 2211 are separated from each other due to the torsion direction of the opening feedback torsion spring 2212, the two air guiding control sheets 2211 are hinged to the cooling pipe 231, each air guiding control sheet 2211 is provided with an air guiding surface 22111 inclined towards the direction of the other air guiding control sheet 2211, the air guiding surfaces 22111 incline towards the other air guiding control sheet 2211, each air guiding control sheet 2211 is provided with a basic ventilation grid 22112, after the air outlet 211 is exhausted, the air flow pushes the air guiding surfaces 22111 to overcome the opening feedback torsion spring 2212 and rotate, and attention is paid to the fact that the rotation direction of the air guiding surfaces 22111 enables the two air guiding surfaces 22111 to approach each other to reduce the opening of the two control sheet components 221, so that uniform cooling of materials is realized, and the phenomenon of wrinkles is reduced.
A screen changer for filtering impurities is arranged between the extruder and the forming mechanism 11, and is used for filtering the extruder to the forming mechanism 11.
The cooling pipe 231 is wound with the diversion cotton rope 2311, the two ends of the cooling pipe 231 are high and low in the middle, the cooling pipe 231 is connected with the compressor 232, a heat exchange medium between the connecting pipe and the compressor 232 is Freon, the compressor 232 utilizes the gas-liquid conversion heat exchange of Freon to belong to the prior art, no more is asleep, warm and humid air flow can generate condensation water when passing through the cooling pipe 231, the cotton rope is wound on the cooling pipe 231, and the two ends of the cooling pipe 231 are high and low in the middle, so that the condensation water can be concentrated in the middle of the cooling pipe 231 along the diversion cotton rope 2311, and the condensation water is finally discharged into the water containing groove 24 preset by the blowing device 21.
The crease-resistant hot-melt adhesive film is produced by using the cooling device for hot-melt adhesive film production, and the raw material formula of the crease-resistant hot-melt adhesive film adopts the raw material formula of the hot-melt adhesive film for compounding the polypropylene honeycomb panel disclosed in Chinese patent publication No. CN105647434A, and comprises the following materials in percentage by weight: 40% -70% of low-melting-point ternary polymerization polypropylene, 20% -40% of ethylene-propylene or ethylene-butene copolymer, 5% -20% of C5/C9 copolymer resin, 2% -15% of high-molecular-weight PP wax, 2% -8% of sealing silane adhesion promoter and 1% -2% of antioxidant.
Wherein the melting point of the ternary polymerization polypropylene is 90-120 ℃.
The preparation method of the crease-resistant hot melt adhesive film adopts the hot melt adhesive film for compounding the polypropylene honeycomb panel disclosed in Chinese patent publication No. CN105647434A and comprises the following specific steps: placing 40% -70% of low-melting-point ternary polymerization polypropylene, 20% -40% of ethylene-propylene or ethylene-butene copolymer, 5% -20% of C5/C9 copolymer resin, 2% -15% of high-molecular-weight PP wax and 1% -2% of antioxidant in a kneader for banburying treatment, adding a sealing silane adhesion promoter with the total amount of 2% -8% for kneading treatment after the system is melted, discharging after kneading for 5-8 min, performing water ring granulation treatment to obtain hot melt rubber particles, extruding the hot melt rubber particles by a screw extruder, and performing tape casting treatment to obtain the crease-resistant hot melt adhesive film by using the molding mechanism 11.
The hot melt adhesive film of the formula system has good film forming property and quick crystallization, is not easy to deform and fold due to incomplete cooling and forming of the film, is beneficial to producing the adhesive film by adopting a tape casting process, does not need lining paper, has low cost and is beneficial to popularization.
Wherein, the same specific proportion of the amount of the sealing silane adhesion promoter added each time is adopted in the following examples.
Embodiment one:
the crease-resistant hot melt adhesive film comprises the following materials in percentage by weight: 50% of low-melting-point ternary polymerization polypropylene, 30% of ethylene-propylene or ethylene-butene copolymer, 15% of C5/C9 copolymer resin, 5%o of a sealing silane adhesion promoter, 2%o of an antioxidant and the balance of high-molecular-weight PP wax. Embodiment two:
the crease-resistant hot melt adhesive film comprises the following materials in percentage by weight: 70% of low-melting-point ternary polymerization polypropylene, 20% of ethylene-propylene or ethylene-butene copolymer, 5% of C5/C9 copolymer resin, 8%o of a sealing silane adhesion promoter, 1%o of an antioxidant and the balance of high-molecular-weight PP wax. Embodiment III:
the crease-resistant hot melt adhesive film comprises the following materials in percentage by weight: 40% of low-melting-point ternary polymerization polypropylene, 30% of ethylene-propylene or ethylene-butene copolymer, 20% of C5/C9 copolymer resin, 8%o of a sealing silane adhesion promoter, 2%o of an antioxidant and the balance of high-molecular-weight PP wax.
While the basic principles and main features of the utility model and advantages of the utility model have been shown and described, it will be understood by those skilled in the art that the present utility model is not limited by the foregoing embodiments, which are described in the foregoing description merely illustrate the principles of the utility model, and various changes and modifications may be made therein without departing from the spirit and scope of the utility model as defined in the appended claims and their equivalents.
Claims (5)
1. The cooling device for hot melt adhesive film production is characterized by comprising a blowing device, a plurality of cold air self-adaptive regulating devices and a cooling circulation device, wherein the blowing device is provided with a plurality of blowing openings, the cooling circulation device is provided with cooling pipes which span over the blowing openings, each cold air self-adaptive regulating device is arranged on the cooling pipe, the opening of each cold air self-adaptive regulating device is changed along with the wind speed of each blowing opening, the opening of each cold air self-adaptive regulating device is small when the wind speed of the blowing opening is large, the opening of each cold air self-adaptive regulating device is large when the wind speed of the blowing opening is small, a diversion cotton rope is wound on the cooling pipe, and the two ends of the cooling pipe are high, middle and low.
2. The cooling device for hot melt adhesive film production according to claim 1, wherein the cold air self-adaptive control device comprises two control sheet assemblies which are symmetrically arranged, the two control sheet assemblies are rotatably arranged on the cooling pipe, the control sheet assemblies are separated from each other at the bottom of the cooling pipe when in a free state, and the bottoms of the control sheet assemblies are close to each other until abutting each other when the air blowing device blows air.
3. The cooling device for hot melt adhesive film production according to claim 2, wherein the control sheet assembly comprises an air guide control sheet and an opening feedback torsion spring, and the torsion direction of the opening feedback torsion spring enables the two air guide control sheets to be separated from each other, and the two air guide control sheets are both hinged on the cooling pipe.
4. The cooling device for hot melt adhesive film production according to claim 3, wherein each of the air guiding control sheet is provided with an air guiding surface inclined in the direction of the other air guiding control sheet.
5. A cooling apparatus for hot melt adhesive film production according to claim 3, wherein each of said air guiding control sheet is provided with a base ventilation grill.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321570886.4U CN220373880U (en) | 2023-06-20 | 2023-06-20 | Cooling device for hot melt adhesive film production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321570886.4U CN220373880U (en) | 2023-06-20 | 2023-06-20 | Cooling device for hot melt adhesive film production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220373880U true CN220373880U (en) | 2024-01-23 |
Family
ID=89568015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321570886.4U Active CN220373880U (en) | 2023-06-20 | 2023-06-20 | Cooling device for hot melt adhesive film production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220373880U (en) |
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2023
- 2023-06-20 CN CN202321570886.4U patent/CN220373880U/en active Active
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| GR01 | Patent grant |