CN116766480A - Bubble filling process of vehicular headrest - Google Patents
Bubble filling process of vehicular headrest Download PDFInfo
- Publication number
- CN116766480A CN116766480A CN202310875081.9A CN202310875081A CN116766480A CN 116766480 A CN116766480 A CN 116766480A CN 202310875081 A CN202310875081 A CN 202310875081A CN 116766480 A CN116766480 A CN 116766480A
- Authority
- CN
- China
- Prior art keywords
- foaming
- film
- headrest
- sponge
- leather sheath
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000005429 filling process Methods 0.000 title claims abstract description 7
- 238000005187 foaming Methods 0.000 claims abstract description 97
- 239000010985 leather Substances 0.000 claims abstract description 77
- 239000000463 material Substances 0.000 claims abstract description 66
- 238000002347 injection Methods 0.000 claims abstract description 62
- 239000007924 injection Substances 0.000 claims abstract description 62
- 239000006260 foam Substances 0.000 claims abstract description 46
- 239000004744 fabric Substances 0.000 claims abstract description 35
- 230000005587 bubbling Effects 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 21
- 238000009958 sewing Methods 0.000 claims description 12
- 239000002994 raw material Substances 0.000 claims description 6
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 3
- 239000012948 isocyanate Substances 0.000 claims description 3
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 claims description 3
- 229920000570 polyether Polymers 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 238000005520 cutting process Methods 0.000 abstract description 6
- 230000007547 defect Effects 0.000 description 2
- 230000001815 facial effect Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
- B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
- B29C44/18—Filling preformed cavities
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
- B29L2031/3005—Body finishings
- B29L2031/3023—Head-rests
Landscapes
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
The invention provides a foam filling process of a headrest for a vehicle, which belongs to the technical field of headrest production and comprises the following steps: s1: attaching a comfort sponge to the headrest leather surface to form a foam filling leather sleeve with a foam filling cavity, wherein a PU film is attached to the inner side of the comfort sponge; s2: adjusting the injection joint of the PU film to extend out of the outer side of the bubble filling leather sheath, and putting the injection joint into a prefabricated mold with a corresponding shape; s3: controlling an injection head of a foaming device to be inserted into the injection joint of the PU film, and injecting foaming materials into the PU film through the injection head; s4: judging whether the injected foaming material meets the preset foaming requirement, if not, continuing to fill according to the foaming requirement, and if so, controlling to take out the headrest product from the prefabricated die after the preset time. The headrest production process has the advantages that the headrest is formed in the PU film through direct foaming, so that the forming efficiency is guaranteed, and the processing efficiency of the foaming leather sheath is guaranteed through cutting the fabric and the comfort sponge.
Description
Technical Field
The invention relates to the technical field of headrest production, in particular to a bubbling process of a vehicle headrest.
Background
In the processing and production process of the automobile headrest, the fabric is required to be cut according to the preset specification, meanwhile, the sponge is cut, then the leather sheath is sewn, meanwhile, a foaming material is poured into a mould with a prefabricated shape, after the material is cured, the material is taken out, and the leather sheath is sleeved on the foaming sponge in a manual mode, so that the automobile headrest product is formed.
In the existing headrest production process, the leather sheath and the sponge are often processed and produced separately and then assembled together, so that the adhesiveness between the leather sheath and the sponge is poor, the time and equipment cost required by processing the sponge are wasted, the sponge in the headrest is filled into the leather sheath after being foamed in advance through the prefabricated mold, and a large amount of labor and time cost can be wasted when the leather sheath is used for wrapping the foamed sponge.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, provides a foam filling process of a headrest for a vehicle, and solves the technical problems of complex process, low efficiency, manual cladding and poor quality stability in the production of the conventional headrest.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the foam filling process of the headrest for the vehicle is characterized by comprising the following steps of:
s1: attaching a comfort sponge to the headrest leather surface to form a foam filling leather sleeve with a foam filling cavity, wherein a PU film is attached to the inner side of the comfort sponge;
s2: adjusting the injection joint of the PU film to extend out of the outer side of the bubble filling leather sheath, and putting the injection joint into a prefabricated mold with a corresponding shape;
s3: controlling an injection head of a foaming device to be inserted into the injection joint of the PU film, and injecting foaming materials into the PU film through the injection head;
s4: judging whether the injected foaming material meets the preset foaming requirement, if not, continuing to fill according to the foaming requirement, and if so, controlling to take out the headrest product from the prefabricated die after the preset time.
Further, in the step S1, attaching a comfort sponge to the headrest skin surface to form a bubbling skin cover having a bubbling cavity, the bubbling skin cover further comprising:
the skin pasting machine is controlled to paste the comfortable sponge on the fabric of the leather surface, and then the fabric is cut into a shape corresponding to the bubble filling leather sheath;
controlling a sewing machine to sew the cut fabric into the bubble filling leather sheath, wherein one side of the bubble filling leather sheath corresponding to the injection joint is in an unsewn state;
and controlling the PU film to be led into the foam filling cavity from the unsewn side of the foam filling leather sheath.
Further, in the step S1, attaching a comfort sponge to the headrest skin surface to form a bubbling skin cover having a bubbling cavity, the bubbling skin cover further comprising:
the skin pasting machine is controlled to paste the comfortable sponge on the fabric of the leather surface, and then the fabric is cut into a shape corresponding to the bubble filling leather sheath;
controlling the PU film to be placed on the surface of the cut fabric corresponding to the foaming chamber, and enabling the injection joint of the PU film to extend out of one side of the cut fabric corresponding to the foaming chamber;
and controlling a sewing machine to sew the cut fabric put into the PU film into the bubble filling leather sheath, wherein one side of the bubble filling leather sheath corresponding to the injection joint is in an unsewn state.
Further, the comfortable sponge is soft sponge with the thickness of 5-20 mm.
Further, the leather surface of the headrest is made of PU material.
Further, in S2, the adjusting step is performed to make the injection joint of the PU film extend out of the outer side of the bubble filling leather sheath and put into a prefabricated mold with a corresponding shape, and then the method further includes:
locking the injection joint of the PU film to enable the injection joint to extend out of the prefabricated mold.
Further, in the step S3, before the injection head of the foam filling device is controlled to be inserted into the injection joint of the PU film, the step further includes adjusting the position of the PU film to make the PU film correspond to the shape of the foam filling chamber.
Further, in the step S3, injecting a foaming material into the PU film through the injection head, further includes:
controlling the high-pressure oil pressure of the foaming equipment to be in the range of 15-20Mpa, controlling the pressure of material A forming the foaming material to be in the range of 10-14Mpa, the pressure of material B to be in the range of 7-11Mpa, and controlling the temperature of the raw material of the foaming material which is subjected to the high-pressure oil pressure to be in the range of 27-48 ℃ and outputting the raw material from the injection head.
Further, the material A is polyether, and the material B is isocyanate.
Further, in S4, determining whether the injected foaming material meets a predetermined foaming requirement includes:
judging whether the foaming material injected into the PU film reaches a preset amount corresponding to the foaming of the foaming chamber or not and judging whether the foaming material in the foaming chamber is completely cured and shaped or not.
The invention has the beneficial effects that:
(1) According to the invention, the comfortable sponge is attached to the headrest leather surface and then subjected to cutting and sewing treatment, so that the sewing process of the bubble filling leather sheath is simple, the comfortable sponge is compounded before the facial sheath is cut, the sponge does not need to be singly cut, and the time cost and the equipment cost increased by cutting the sponge are reduced.
(2) According to the invention, the PU film is filled into the foaming cavity and then is transferred into the prefabricated mold to be filled with the foaming material, so that the foaming material is foamed, cured and formed in the sealed prefabricated mold, the headrest surface sleeve is placed in the foaming mold to foam, the headrest product quality is stable, and the headrest assembly has good comfort.
In summary, the headrest production process of the invention ensures the molding efficiency by directly foaming the headrest in the PU film, and ensures the processing efficiency of the foaming leather sheath by cutting the fabric and the comfort sponge.
Drawings
FIG. 1 is a flow chart of the bubbling process of the present invention;
FIG. 2 is a front view of the bubble head restraint of the present invention;
fig. 3 is a cross-sectional view of the bubble head rest of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
As shown in fig. 1, a foam filling process of a headrest for a vehicle includes the following steps:
s1: attaching a comfort sponge to the headrest leather surface to form a foam filling leather sleeve with a foam filling cavity, wherein a PU film is attached to the inner side of the comfort sponge;
s2: adjusting the injection joint of the PU film to extend out of the outer side of the bubble filling leather sheath, and putting the injection joint into a prefabricated mold with a corresponding shape;
s3: controlling an injection head of a foaming device to be inserted into the injection joint of the PU film, and injecting foaming materials into the PU film through the injection head;
s4: judging whether the injected foaming material meets the preset foaming requirement, if not, continuing to fill according to the foaming requirement, and if so, controlling to take out the headrest product from the prefabricated die after the preset time.
In an embodiment of the invention, in the foaming production process of the headrest for the vehicle, the fabric for manufacturing the leather surface of the headrest is cut into the shape corresponding to the foaming leather sheath in advance, so that the comfort sponge is attached to the leather surface of the headrest, and the comfort sponge can be adhered to the fabric in advance and then cut. Or the fabric can be cut and then attached by the comfort sponge, then the fabric is sewn into a foam filling leather sheath with a foam filling cavity, or the fabric can be cut and sewn, and then the comfort sponge and the PU film are filled into the foam filling leather sheath to form the foam filling cavity. When the PU film is put into the filling leather sheath to be sewn, the position of the injection joint of the PU film needs to be adjusted, and the injection joint is preferably arranged at one side of the bottom of the filling leather sheath to extend out, and then the filling leather sheath is put into a prefabricated mould for injecting and foaming materials. Then the injection head of the foam filling equipment is controlled to be inserted into the injection joint of the PU film, the foam filling equipment is controlled to inject foaming materials into the PU film, the headrest surface sleeve is placed in the foaming mold for foaming, the headrest product quality is stable, and the headrest assembly is good in comfort. When the foaming material is injected, whether the foaming material is discharged into the PU film according to a preset quantity or not and whether the foaming time in the prefabricated mold meets the preset foaming requirement or not are considered, after the preset foaming requirement is met, the formed foaming headrest is controlled to be taken out of the prefabricated mold, and then the foaming treatment of the next group of filling leather sleeves is carried out, so that the foaming treatment is repeated.
In the step S1, attaching a comfort sponge to the headrest skin surface to form a bubbling skin cover having a bubbling chamber, and further comprising:
the skin pasting machine is controlled to paste the comfortable sponge on the fabric of the leather surface, and then the fabric is cut into a shape corresponding to the bubble filling leather sheath;
controlling a sewing machine to sew the cut fabric into the bubble filling leather sheath, wherein one side of the bubble filling leather sheath corresponding to the injection joint is in an unsewn state;
and controlling the PU film to be led into the foam filling cavity from the unsewn side of the foam filling leather sheath.
In one embodiment of the invention, the comfortable sponge is firstly attached to the fabric of the leather face and then cut, so that the process is simple, the comfortable sponge is compounded before the face cover is cut, the sponge does not need to be cut alone, the headrest face cover is placed in the foaming mold for foaming, the headrest product quality is stable, and the headrest assembly is comfortable. Meanwhile, the PU film can be guided into the foaming chamber, and then the foaming material is filled into the PU film.
In the step S1, attaching a comfort sponge to the headrest skin surface to form a bubbling skin cover having a bubbling chamber, and further comprising:
the skin pasting machine is controlled to paste the comfortable sponge on the fabric of the leather surface, and then the fabric is cut into a shape corresponding to the bubble filling leather sheath;
controlling the PU film to be placed on the surface of the cut fabric corresponding to the foaming chamber, and enabling the injection joint of the PU film to extend out of one side of the cut fabric corresponding to the foaming chamber;
and controlling a sewing machine to sew the cut fabric put into the PU film into the bubble filling leather sheath, wherein one side of the bubble filling leather sheath corresponding to the injection joint is in an unsewn state.
In an embodiment of the invention, the PU film is put on the cut fabric in advance in the sewing process, and then the sewing is carried out, so that the positioning of the PU film quilt is more accurate.
The comfortable sponge is soft sponge with the thickness of 5-20 mm. The thickness of the comfort sponge is preferably 10mm.
The leather surface of the headrest is made of PU material. The fabric made of PU material is used as the outer skin material of the headrest, so that the durability and the comfort of the headrest can be ensured.
In the step S2, the injection joint of the PU film is adjusted to extend out of the foam filling leather sheath and put into a prefabricated mold with a corresponding shape, and then the method further includes:
locking the injection joint of the PU film to enable the injection joint to extend out of the prefabricated mold.
In this embodiment, through the injection joint that utilizes manipulator etc. locking PU film, with injection joint stretch out prefabricated mould again, can be convenient for realize filling the injection head of bubble equipment and can accurate butt joint to injection joint, carry out the filling of foaming material.
In the step S3, before the injection head of the foam filling device is inserted into the injection joint of the PU film, the method further includes adjusting the position of the PU film to make the PU film correspond to the shape of the foam filling chamber.
In this embodiment, the PU film may be guided to correspond to the shape of the bubble chamber by extending into the PU film encased in the bubble sheath with an extending rod, tab, or the like.
In the step S3, injecting a foaming material into the PU film through the injection head, further including:
controlling the high-pressure oil pressure of the foaming equipment to be in the range of 15-20Mpa, controlling the pressure of material A forming the foaming material to be in the range of 10-14Mpa, the pressure of material B to be in the range of 7-11Mpa, and controlling the temperature of the raw material of the foaming material which is subjected to the high-pressure oil pressure to be in the range of 27-48 ℃ and outputting the raw material from the injection head.
In an embodiment of the invention, the mixing degree of the material A and the material B can be ensured by ensuring the injection pressure of the material A and the material B to the high-pressure machine, and the injection pressure of the foaming material into the PU film can be conveniently ensured by the output pressure of the high-pressure machine. In this embodiment, the high-pressure oil pressure is preferably 18Mpa, the injection pressure of the material a is preferably 12Mpa, and the injection pressure of the material b is preferably 9Mpa.
The material A is polyether, and the material B is isocyanate.
In the step S4, determining whether the injected foaming material meets a predetermined foaming requirement includes:
judging whether the foaming material injected into the PU film reaches a preset amount corresponding to the foaming of the foaming chamber or not and judging whether the foaming material in the foaming chamber is completely cured and shaped or not.
In an embodiment of the present invention, whether to continue filling of the foaming material may be determined by according to a predetermined foaming material discharge amount. Meanwhile, after filling is completed, the need is determined to wait for the prefabricated mold to be completely closed for molding for 1-6min for curing, and then the molded headrest is taken out of the prefabricated mold under control.
As shown in fig. 2 and 3, 1 is a foam filling leather sheath, a U-shaped rigid column 5 is inserted into the foam filling leather sheath 1, a comfort sponge 2 is attached to the inner side of the foam filling leather sheath 1, a PU film 3 is attached to the inner side of the comfort sponge 2, one end of the PU film 3 extends out of one side of the bottom of the foam filling leather sheath 1, and the inner cavity of the PU film 3 is filled with cured foaming material to form the foam filling headrest of the invention.
In conclusion, the comfortable sponge is attached to the headrest leather surface and then subjected to cutting and sewing treatment, so that the sewing process of the foam filling leather sheath is simple, the comfortable sponge is compounded before the facial sheath is cut, the sponge does not need to be cut separately, and the time cost and the equipment cost increased by cutting the sponge are reduced. After the PU film is filled into the foaming cavity, the PU film is transferred into the prefabricated mold, and foaming materials are filled into the prefabricated mold, so that the foaming materials are foamed, cured and molded in the sealed prefabricated mold, the headrest face cover is placed in the foaming mold for foaming, the headrest product quality is stable, and the headrest assembly is good in comfort. Therefore, the invention effectively overcomes various defects in the prior art and has high industrial utilization value
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (10)
1. The foam filling process of the headrest for the vehicle is characterized by comprising the following steps of:
s1: attaching a comfort sponge to the headrest leather surface to form a foam filling leather sleeve with a foam filling cavity, wherein a PU film is attached to the inner side of the comfort sponge;
s2: adjusting the injection joint of the PU film to extend out of the outer side of the bubble filling leather sheath, and putting the injection joint into a prefabricated mold with a corresponding shape;
s3: controlling an injection head of a foaming device to be inserted into the injection joint of the PU film, and injecting foaming materials into the PU film through the injection head;
s4: judging whether the injected foaming material meets the preset foaming requirement, if not, continuing to fill according to the foaming requirement, and if so, controlling to take out the headrest product from the prefabricated die after the preset time.
2. A process for the bubbling of a vehicular headrest according to claim 1, wherein,
in the S1, the comfort sponge is attached to the headrest leather surface to form a foam filling leather sheath with a foam filling cavity, and the foam filling leather sheath further comprises:
the skin pasting machine is controlled to paste the comfortable sponge on the fabric of the leather surface, and then the fabric is cut into a shape corresponding to the bubble filling leather sheath;
controlling a sewing machine to sew the cut fabric into the bubble filling leather sheath, wherein one side of the bubble filling leather sheath corresponding to the injection joint is in an unsewn state;
and controlling the PU film to be led into the foam filling cavity from the unsewn side of the foam filling leather sheath.
3. A process for the bubbling of a vehicular headrest according to claim 1, wherein,
in the S1, the comfort sponge is attached to the headrest leather surface to form a foam filling leather sheath with a foam filling cavity, and the foam filling leather sheath further comprises:
the skin pasting machine is controlled to paste the comfortable sponge on the fabric of the leather surface, and then the fabric is cut into a shape corresponding to the bubble filling leather sheath;
controlling the PU film to be placed on the surface of the cut fabric corresponding to the foaming chamber, and enabling the injection joint of the PU film to extend out of one side of the cut fabric corresponding to the foaming chamber;
and controlling a sewing machine to sew the cut fabric put into the PU film into the bubble filling leather sheath, wherein one side of the bubble filling leather sheath corresponding to the injection joint is in an unsewn state.
4. A process for the bubbling of a headrest for vehicles according to claim 2 or 3, characterized in that,
the comfortable sponge is soft sponge with the thickness of 5-20 mm.
5. A process for the bubbling of a vehicular headrest according to claim 4, wherein,
the leather surface of the headrest is made of PU material.
6. A process for the bubbling of a vehicular headrest according to claim 1, wherein,
in the step S2, the injection joint of the PU film is adjusted to extend out of the foam filling leather sheath and put into a prefabricated mold with a corresponding shape, and then the method further includes:
locking the injection joint of the PU film to enable the injection joint to extend out of the prefabricated mold.
7. A process for the bubbling of a vehicular headrest according to claim 1, wherein,
in the step S3, before the injection head of the foam filling device is controlled to be inserted into the injection joint of the PU film, the method further includes adjusting the position of the PU film to enable the PU film to correspond to the shape of the foam filling chamber.
8. A process for the bubbling of a vehicular headrest according to claim 1, wherein,
in the step S3, injecting a foaming material into the PU film through the injection head, and further including:
controlling the high-pressure oil pressure of the foaming equipment to be in the range of 15-20Mpa, controlling the pressure of material A forming the foaming material to be in the range of 10-14Mpa, the pressure of material B to be in the range of 7-11Mpa, and controlling the temperature of the raw material of the foaming material which is subjected to the high-pressure oil pressure to be in the range of 27-48 ℃ and outputting the raw material from the injection head.
9. A process for the bubbling of a vehicular headrest according to claim 1, wherein,
the material A is polyether, and the material B is isocyanate.
10. A process for the bubbling of a vehicular headrest according to claim 1, wherein,
in the step S4, determining whether the injected foaming material meets a predetermined foaming requirement includes:
judging whether the foaming material injected into the PU film reaches a preset amount corresponding to the foaming of the foaming chamber or not and judging whether the foaming material in the foaming chamber is completely cured and shaped or not.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310875081.9A CN116766480A (en) | 2023-07-17 | 2023-07-17 | Bubble filling process of vehicular headrest |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310875081.9A CN116766480A (en) | 2023-07-17 | 2023-07-17 | Bubble filling process of vehicular headrest |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116766480A true CN116766480A (en) | 2023-09-19 |
Family
ID=87993060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310875081.9A Pending CN116766480A (en) | 2023-07-17 | 2023-07-17 | Bubble filling process of vehicular headrest |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116766480A (en) |
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2023
- 2023-07-17 CN CN202310875081.9A patent/CN116766480A/en active Pending
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