CN102189630A - Manufacture method of seamless sleeve-shaped article with thermoplastic material - Google Patents
Manufacture method of seamless sleeve-shaped article with thermoplastic material Download PDFInfo
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- CN102189630A CN102189630A CN2010101277475A CN201010127747A CN102189630A CN 102189630 A CN102189630 A CN 102189630A CN 2010101277475 A CN2010101277475 A CN 2010101277475A CN 201010127747 A CN201010127747 A CN 201010127747A CN 102189630 A CN102189630 A CN 102189630A
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Abstract
The invention relates to a manufacture method of a seamless sleeve-shaped article with a thermoplastic material; according to the invention, a plurality of seamless sleeve-shaped articles having single openings can be formed on a plurality of outer rims of moulds, which move in an orbit. The manufacture method of the seamless sleeve-shaped article with the thermoplastic material comprises the following steps: a hot melting and coating step: with utilization of at least two sets of extrusion mechanisms, providing a raw material of a thermoplastic material, which is in a hot melt liquid state, and coating the raw material of the thermoplastic material on an outer rim of a mould; a heating and condensing step: making the mould passing through a heating mechanism and heating the raw material of the thermoplastic material on the surface of the mould so as to form a film-type and sleeve-shaped article having even thickness, and then cooling the raw material of the thermoplastic material for setting; a crimping step : a lower margin of the opening of the sleeve-shaped article with the thermoplastic material as the raw material is rolled into a round rim; and a demoulding step: stripping the sleeve-shaped article from the mould.
Description
Technical field
The present invention relates to a kind of seamless shell-like thing manufacture method of thermoplasticity material, relate in particular to and utilize the manufacturing of thermoplasticity material to have the method for single opening, jointless shell-like thing.
Background technology
The method of existing manufacturing rubber-like film shell-like thing (object that only has an end opening as jettisonable gloves, fingerstall, condom and balloon etc.) is to form object with the liquid natural or synthetic rubber of mould dipping.Existing primary raw material such as natural rubber, nitrite butadiene rubber (nitrile butadiene), chloroprene rubber (chloroprenerubber) and polyisoprene rubber (polyisoprene rubber) etc. are emulsion state, and objects such as surfactant, various chemical impurities have been comprised, and this surfactant, chemical impurity all need to be filtered off guaranteeing quality of finished, and the process of leaching need expend a large amount of water and manpower, time cost.Moreover, need to add materials such as sulphur, promoter, catalyst in the existing manufacture process, to cause the user to produce allergic phenomena, and inserting the covalent bond that can strengthen between the raw molecule behind the above-mentioned element links, promote the physical strength of material, its process is called chemical crosslinking (chemical cross-linking) or sulfuration (vulcanization).But then, finish crosslinked material and be difficult to reverse reduction (and incuring a considerable or great expense), cause the difficulty of recycling.
Thermoplastic elastomer is recyclable and have the characteristic of rubber and can have more efficient, the rubber phase more more environmental protection natural or artificial with tradition by the processing of traditional plastics manufacture method.Therefore industry is risen and is used thermoplastic elastomer to substitute the trend of traditional rubber.
United States Patent (USP) U.S.6 121, No. 366,6,639, No. 007,7,148, discloses for No. 283 to utilize and has soaked styrene agglomerate copolymer (styrene block copolymer) to make the method for slim elasticity thing.United States Patent (USP) U.S.6 discloses a kind of dipping polyurethane (polyurethane) to make the method for slim elasticity thing 720, No. 049.United States Patent (USP) U.S.3,124, No. 807,4,776, No. 921,5,833, No. 915,5,997, No. 676 and 6,243, provide a kind of mode No. 875, it utilizes two-layer polyolefin elastomer (polyolefin elastomer) or polyurethane elastomer (polyurethane elastomer) film, produces jointed gloves or other thin articles.United States Patent (USP) U.S.4,034, No. 036,4,358, No. 420,6,213, No. 123,6,350, No. 231 and 6,579, provide a kind of method No. 582, pre-formation thing that elongates or provide the air pressure mode to put on a preheating is provided for it, to form the slim shell-like object of condom or fingerstall and so on along tubular die.United States Patent (USP) U.S. provides a kind of ejaculation hollow forming (injection blow molding) method of utilizing the polymer manufacturing elasticity synthetic rubber gloves of PPG for the 5th, 640, No. 720.Yet the method causes uneven film thickness.United States Patent (USP) U.S.4 provides a kind of ejection forming method that is used to make the electrical protection gloves 921, No. 672, and this method can only be made thicker gloves.United States Patent (USP) U.S.4,687, No. 531 is a kind of method of making slim shell-like object, be to utilize the sprinkling thermoplastic to be shaped in the inwall of a mould, but this mode is difficult to make undersized slim shell-like thing.United States Patent (USP) U.S.4,434, No. 126,6,649, No. 116 and 6,890, the powder coated method that is used to make the slim thing of thermoplastic elastomer is provided for No. 475, the gap of powder particle size influences the quality of film, for example may produce defectives such as pin hole or uneven thickness, and will guarantee that the powder particle gap will expend cost very much in very little scope.In addition, need to supply with liquid nitrogen cooling thermoplastic elastomer so that its hardening can be ground, the program of this cooling also expends cost very much.
Based on to the not anaphylactic demand of cost of material, recuperability, health, and highly automated production, save water, the energy, can form the requirement of three-dimensional (solid) form, the means of above-mentioned each prior art moulding still can't be finished above-mentioned most of requirement, therefore have much room for improvement.
Summary of the invention
Because above-mentioned the deficiencies in the prior art, first purpose of the present invention is to provide a kind of and makes the manufacture method that has lip, jointless film shell-like thing in solid, flexible, the single opening, and utilizes continuous, lower-cost manufacturing step to realize.
Second purpose of the present invention is to use than environmental protection, do not stimulate human body, avoids using the material of chemical additive to replace traditional elastomeric material.
The present invention is a kind of seamless shell-like thing manufacture method of thermoplasticity material, make along a plurality of mould outer rims of an orbital motion and form a plurality of seamless shell-like things with single opening, this method comprises: the heat seeling coating step, and utilize at least two group extrusion mechanisms to provide the thermoplasticity material raw material that is the hot melt liquid state to be coated on this mould outer rim; Heating makes this mould heat its surperficial thermoplasticity material raw material by a heating arrangements with condensing steps, makes this thermoplasticity material raw material cooling to form the uniform film shape of thickness shell-like thing again; Volume lip step, the thermoplasticity material raw material that will be positioned at shell-like thing opening lower edge is rolled into round edge; Demoulding step is peeled off this mould with this shell-like thing.
By above-mentioned steps, can use thermoplasticity material raw material and become jointless shell-like thing, and can avoid using the material that is detrimental to health at die shape.
Description of drawings
Fig. 1 is the flow chart of steps () of this method;
Fig. 2 is the flow chart of steps (two) of this method;
Fig. 3 is for implementing the structural scheme of mechanism of this method;
Fig. 4-1 is this shell-like states of matter sample schematic diagram (one);
Fig. 4-2 is the local amplification profile of Fig. 4-1;
Fig. 5 is this shell-like states of matter sample schematic diagram (two);
Fig. 6 is this shell-like states of matter sample schematic diagram (three); And
Fig. 7 is this shell-like states of matter sample schematic diagram (four).
The specific embodiment
The present invention is a kind of seamless shell-like thing manufacture method of thermoplasticity material, make along a plurality of mould outer rims of an orbital motion and rotation and form a plurality of seamless shell-like things with single opening, see also Fig. 1, this method has mainly comprised heat seeling coating step 11, heating and condensing steps 12 and demoulding step 13.Wherein, this heat seeling coating step 11 is to utilize at least two group extrusion mechanisms to provide the thermoplasticity material raw material that is the hot melt liquid state to be coated on this mould outer rim, makes and forms the structure of double-layer films at least on this mould.Then this heating makes this thermoplasticity material raw material hot melt kenel slightly in a flowable with 12 of condensing steps by to the heating of the semi-finished product on this mould, the rotation of this mould of arranging in pairs or groups and make the more uniform distribution of thermoplasticity material raw material, cooling and shaping then afterwards.After this shell-like thing on this mould is moulding, and this demoulding step 13 that continues is peeled off this mould with this shell-like thing.The last shell-like thing mould of the demoulding can be again be got back to the production shell-like thing that originally step continues automation along the production line track.
In above-mentioned step, also can add other means, as shown in Figure 2, it is more to apply the amount of thermoplasticity material raw material on mould in this heat seeling coating step 11, therefore may have excessive thermoplasticity material raw material on this mould, therefore before beginning heating and condensing steps 12, can carry out clout drippage step 14 earlier, this clout drippage step 14 makes this mould except along this orbital motion, also this mould to one drippage attitude of displacement is dripped unnecessary thermoplasticity material raw material on this mould, this drippage attitude is to make this mould be vertical subvertical attitude and drip unnecessary thermoplasticity material raw material, the drippage attitude can slight inclination, except dripping unnecessary thermoplasticity material raw material, also can make average being distributed on the mould of thermoplasticity material raw material.This clout drippage step 14 can be carried out in heat seeling coating step 11 back that finishes, and interts perhaps that the execution clout drips step 14 after be coated with wherein one deck thermoplasticity material raw material.After through the unnecessary thermoplasticity material raw material of grace time drippage, this mould then enters heating and condensing steps 12 by a heating arrangements, this step makes the thermoplasticity material raw material heating of this heating arrangements to this die surface, make this thermoplasticity material raw material hot melt state slightly in a flowable, and the rotation of collocation mould makes the thermoplasticity material raw material of uneven thickness mobile average with short its thickness.Make this thermoplasticity material raw material cooling to form the uniform film shape of thickness shell-like thing after leaving this heating arrangements; Wherein Leng Que mode can be by being exposed to lower the temperature under the room temperature or lower the temperature in watering on the mould (then being finished product after need waiting for its drying again).Also comprise volume lip step 15 behind this heating and the condensing steps 12, the thermoplasticity material raw material that will be positioned at shell-like thing opening lower edge is rolled into round edge, forms the lip of shell-like thing.
Owing to experience its surperficial resistance when stickiness and wearing can be made us feeling in existing rubber product surface, and the shell-like thing that above-mentioned steps provides can improve the shortcoming of above-mentioned prior art.Because above-mentioned steps forms two thin layers by the coating of at least two group extrusion mechanisms, therefore can in the shell-like thing that is shaped, form different senses of touch and different friction by outer surface, inner surface can have more level and smooth surface to be dressed with convenient, and the outside is then more tough, friction is higher so that grasp article.In sum, the described step of Fig. 1 and Fig. 2 can be made the better shell-like thing of characteristic, and what use is hot plastomer's raw material and avoid injuring the health of user or manufacturer, has more the recyclable good characteristic that utilizes again.
See also Fig. 3, this figure is depicted as enforcement schematic diagram of the present invention, is depicted as a plurality of moulds 29 are finished above-mentioned steps in each different institutions flow process.Begin to introduce prior to upper left side in the drawing, a plurality of moulds 29 utilize existing structure such as motor or conveying mechanism and run on the track (not shown), and make this mould 29 continuous rotations.And this heat seeling coating step 11 has been used at least two group extrusion mechanisms 21,22, and the present invention does not limit the kenel of those extrusion mechanisms 21,22, can use heat outputting plastic material raw material to be the extrusion mechanism 21 of vaporific sprinkling; Or heat outputting plastic material raw material is the extrusion mechanism 22 that the heavy curtain shape waters pouring; Perhaps heat outputting plastic material raw material is vaporific sprinkling and heavy curtain shape respectively and waters at least two group extrusion mechanisms 21,22 of drenching combination.Further, this extrusion mechanism 22 also can be the common extrusion mechanism that extrudes the multilayer material simultaneously, and the above structure of one deck is provided in the thermoplasticity material raw material that then provides the heavy curtain shape to water pouring.Therefore the first thermoplasticity material raw material 31 that these extrusion mechanism 21 sprinklings are the hot melt state forms skims at this mould 29 in these mould 29 outer rims.Next then provide by another extrusion mechanism 22 to be the second thermoplasticity material raw material 32 that the heavy curtain shape flows out, this mould 29 has been coated with one deck second thermoplasticity material raw material 32 on the surface by this extrusion mechanism 22.So far the prepattern aspect that has comprised two laminate structures on this mould 29.After this extrusion mechanism 22, can impel the thermoplasticity material raw thickness on the mould 29 more even by this clout drippage step 14, and make unnecessary raw material drippage, therefore in above-mentioned extrusion mechanism 21, have a drip area 23 after 22 for thermoplasticity material raw material drippage unnecessary on the mould 29, this mould 29 drips unnecessary thermoplasticity material raw material except also be moved to an approaching drippage attitude vertically downward along this orbital motion on this mould 29 in this drip area 23, but these mould 29 slight inclination are but not real vertical, and so the rotation of attitude collocation mould 29 also can make prepattern and not equally distributed thermoplasticity material raw material flow and make its more uniform being distributed on this mould 29.After this clout drippage step 14, this mould 29 sprays the extrusion mechanism 21 of the 3rd thermoplasticity material raw material 33 again through another, through these mould 29 surface coverage after this extrusion mechanism 21 the 3rd thermoplasticity material raw material 33 and form the structure of three thin layers.Then 29 on this mould enters a baker 24 heating, and sufficient heating of process and collocation mould 29 rotate and make the thermoplasticity material raw material of uneven thickness mobile average with short its thickness.Finish heating and condensing steps 12 by the cooling of water sprinkler 25 and dryer 26 again, so far this shell-like thing is finalized the design, and has intensity, elasticity and the appropriate surperficial friction of abundance because of the structure of three thin layers.Make this shell-like thing add upper lip in this still selectable this volume lip step 15 of carrying out again.By a mould emptier 27 shell-like thing finished product is peeled off mould 29 more at last.The track of these mould 29 operations of above-mentioned confession is the loop of a circulation, those moulds 29 are continued after demoulding step 13 carry out first step, reach quick, a large amount of production of automation, and also utilize at least one waste recovery mechanism 28 to collect the thermoplasticity material raw material that is not applied on this mould 29 when carrying out heat seeling coating step 11, to make full use of material, reduce meaningless expending.
Above-mentioned steps and mechanism's manufactured finished see also Fig. 4-1 and Fig. 4-2, shell-like thing shown in Fig. 4-1 is gloves 801 aspects, these gloves 801 have the lip of single opening and openend, Fig. 5-2 also illustrates the structure that its section has comprised three thin layers, this three thin layer is respectively to be coated with first in regular turn on mould 29 in the process of making, the second and the 3rd thermoplasticity material raw material 31,32,33, and this first, the second and the 3rd thermoplasticity material raw material 31,32,33 can have different composition, make this first, the second and the 3rd thermoplasticity material raw material 31,32,33 characteristics respectively have difference slightly.Though first, second and the 3rd thermoplasticity material raw material 31,32,33 have difference slightly, this first, second and the 3rd thermoplasticity material raw material 31,32,33 comprised at least 50% thermoplastic elastomer (thermoplastic elastomer).The shell-like thing of this moulding can be gloves 801 (being shown in Fig. 4-1), condom 802 (being shown in Fig. 5), fingerstall 803 (being shown in Fig. 6), balloon 804 (being shown in Fig. 7) etc., depends on the design form of this mould 29.
First, second that said method uses and the 3rd thermoplasticity material raw material 31,32,33 have comprised at least 50% thermoplastic elastomer (Thermoplastic Elastomer), and this thermoplastic elastomer can be selected from a kind of in the following material: polyurethane elastomer (polyurethaneelastomer), polystyrene block copolymer (polystyrene block copolymers), polyolefin elastomer (polyolefin elastomer).
This thermoplasticity material raw material also can comprise polyethylene (polyethyrene) or polypropylene (polypropyrene) or antioxidant (antioxidant) or stabilizing agent (stabilizer), anti-caking auxiliary agent (anti-blocking agent) or demolding aids (mold release agent) or materials such as filler or colorant except thermoplastic elastomer.
Comprehensive above-mentioned technology, the advantage that the present invention reached is as follows:
1. can save the water and the energy that expend in the production, reduce cost;
2. use thermoplastic elastomer raw material can have environmental protection, the user is difficult for benefits such as allergy;
3. make no seam, three-dimensional shell-like thing, finished product has elasticity, is difficult for breaking;
4. can form lip in the lump, ease of use is simplified and increased to operation.
Above-mentioned method and enforcement body have realized purpose of the present invention fully, and obviously are better than prior art.Though the present invention discloses as above with preferred embodiment; right its is not in order to limit the present invention; any those skilled in the art; without departing from the spirit and scope of the present invention; and a little change and the retouching done; all should be covered by among the present invention, so protection scope of the present invention is as the criterion when looking the accompanying Claim book person of defining.
Claims (9)
1. the seamless shell-like thing manufacture method of a thermoplasticity material makes along a plurality of mould outer rims of an orbital motion and rotation and forms a plurality of seamless shell-like things with single opening, it is characterized in that described method comprises:
Heat seeling coating step (11): utilize at least two group extrusion mechanisms (21,22) to provide the thermoplasticity material raw material that is the hot melt liquid state to be coated on described mould outer rim;
Heating and condensing steps (12): described mould is rotated to form the uniform film shape of thickness shell-like thing with the collocation mould its surperficial thermoplasticity material raw material heating by a heating arrangements, make described thermoplasticity material raw material cooling again;
Demoulding step (13): described shell-like thing is peeled off described mould.
2. the seamless shell-like thing manufacture method of thermoplasticity material according to claim 1 is characterized in that, heat seeling coating step (11) utilizes heat outputting plastic material raw material to be the extrusion mechanism (21) of vaporific sprinkling.
3. the seamless shell-like thing manufacture method of thermoplasticity material according to claim 1 is characterized in that, heat seeling coating step (11) utilizes heat outputting plastic material raw material to be the extrusion mechanism (22) that the heavy curtain shape waters pouring.
4. the seamless shell-like thing manufacture method of thermoplasticity material according to claim 1, it is characterized in that heat seeling coating step (11) utilizes heat outputting plastic material raw material to be vaporific sprinkling respectively and the heavy curtain shape waters at least two group extrusion mechanisms (21,22) of drenching combination.
5. the seamless shell-like thing manufacture method of thermoplasticity material according to claim 1 is characterized in that, also comprise a volume lip step (15) behind described heating and the condensing steps (12): the thermoplasticity material raw material that will be positioned at shell-like thing opening lower edge is rolled into round edge.
6. the seamless shell-like thing manufacture method of thermoplasticity material according to claim 1 is characterized in that described thermoplasticity material raw material comprises at least 50% thermoplastic elastomer.
7. the seamless shell-like thing manufacture method of thermoplasticity material according to claim 6 is characterized in that described thermoplastic elastomer is polystyrene block copolymer or its mixture.
8. the seamless shell-like thing manufacture method of thermoplasticity material according to claim 6 is characterized in that described thermoplastic elastomer is polyolefin elastomer or its mixture.
9. the seamless shell-like thing manufacture method of thermoplasticity material according to claim 6 is characterized in that described thermoplastic elastomer is polyurethane elastomer or its mixture.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101277475A CN102189630A (en) | 2010-03-08 | 2010-03-08 | Manufacture method of seamless sleeve-shaped article with thermoplastic material |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010101277475A CN102189630A (en) | 2010-03-08 | 2010-03-08 | Manufacture method of seamless sleeve-shaped article with thermoplastic material |
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| CN102189630A true CN102189630A (en) | 2011-09-21 |
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| CN2010101277475A Pending CN102189630A (en) | 2010-03-08 | 2010-03-08 | Manufacture method of seamless sleeve-shaped article with thermoplastic material |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103909599A (en) * | 2012-12-28 | 2014-07-09 | 萨玛派格德国有限公司 | Method and device for producing plastic parts from a plastic material in powder form |
| CN113306123A (en) * | 2021-06-29 | 2021-08-27 | 苏州恩硕无尘科技有限公司 | Shaping method for rubber glove wall of dust-free room |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3094704A (en) * | 1960-09-29 | 1963-06-25 | Plastomeric Products Corp | Plastic glove |
| CN1065588A (en) * | 1991-04-08 | 1992-10-28 | 王朝社 | Glove for washing |
| CN1374985A (en) * | 1999-09-15 | 2002-10-16 | 克拉通聚合物研究有限公司 | Elastomeric film grade thermoplastic polymer compositions having improved elastic performance |
| CN1812730A (en) * | 2003-07-02 | 2006-08-02 | 安塞尔保健产品有限责任公司 | Textured surface coating for gloves and method of making |
-
2010
- 2010-03-08 CN CN2010101277475A patent/CN102189630A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3094704A (en) * | 1960-09-29 | 1963-06-25 | Plastomeric Products Corp | Plastic glove |
| CN1065588A (en) * | 1991-04-08 | 1992-10-28 | 王朝社 | Glove for washing |
| CN1374985A (en) * | 1999-09-15 | 2002-10-16 | 克拉通聚合物研究有限公司 | Elastomeric film grade thermoplastic polymer compositions having improved elastic performance |
| CN1812730A (en) * | 2003-07-02 | 2006-08-02 | 安塞尔保健产品有限责任公司 | Textured surface coating for gloves and method of making |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103909599A (en) * | 2012-12-28 | 2014-07-09 | 萨玛派格德国有限公司 | Method and device for producing plastic parts from a plastic material in powder form |
| CN103909599B (en) * | 2012-12-28 | 2017-01-04 | 萨玛派格德国有限公司 | For being manufactured the method and apparatus of working of plastics by powdered plastics material |
| CN113306123A (en) * | 2021-06-29 | 2021-08-27 | 苏州恩硕无尘科技有限公司 | Shaping method for rubber glove wall of dust-free room |
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Application publication date: 20110921 |