CN1984766B - Thermal crystallization system of saturated polyester hollow body and its heating method - Google Patents
Thermal crystallization system of saturated polyester hollow body and its heating method Download PDFInfo
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- CN1984766B CN1984766B CN2004800435296A CN200480043529A CN1984766B CN 1984766 B CN1984766 B CN 1984766B CN 2004800435296 A CN2004800435296 A CN 2004800435296A CN 200480043529 A CN200480043529 A CN 200480043529A CN 1984766 B CN1984766 B CN 1984766B
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- hollow body
- saturated polyester
- heating
- heater group
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 115
- 238000002425 crystallisation Methods 0.000 title claims abstract description 90
- 230000008025 crystallization Effects 0.000 title claims abstract description 89
- 229920000728 polyester Polymers 0.000 title claims abstract description 54
- 229920006395 saturated elastomer Polymers 0.000 title claims abstract description 54
- 238000000034 method Methods 0.000 title description 6
- 230000001678 irradiating effect Effects 0.000 claims abstract description 19
- 238000005286 illumination Methods 0.000 claims description 17
- 230000001105 regulatory effect Effects 0.000 claims description 10
- 230000003760 hair shine Effects 0.000 claims description 3
- 229910052736 halogen Inorganic materials 0.000 abstract description 18
- 150000002367 halogens Chemical class 0.000 abstract description 17
- 238000009987 spinning Methods 0.000 abstract 2
- 230000031700 light absorption Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 7
- 230000015572 biosynthetic process Effects 0.000 description 5
- 238000005755 formation reaction Methods 0.000 description 5
- 238000005524 ceramic coating Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000000071 blow moulding Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000009998 heat setting Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000002087 whitening effect Effects 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B13/00—Conditioning or physical treatment of the material to be shaped
- B29B13/02—Conditioning or physical treatment of the material to be shaped by heating
- B29B13/023—Half-products, e.g. films, plates
- B29B13/024—Hollow bodies, e.g. tubes or profiles
- B29B13/025—Tube ends
-
- 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
- B29C71/00—After-treatment of articles without altering their shape; Apparatus therefor
- B29C71/0063—After-treatment of articles without altering their shape; Apparatus therefor for changing crystallisation
-
- 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
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
- B29C35/0805—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation
- B29C2035/0827—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation using UV radiation
-
- 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
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
- B29C35/0805—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation
-
- 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
- B29C71/00—After-treatment of articles without altering their shape; Apparatus therefor
- B29C71/02—Thermal after-treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2067/00—Use of polyesters or derivatives thereof, as moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/25—Solid
- B29K2105/253—Preform
- B29K2105/258—Tubular
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
- B29K2995/0037—Other properties
- B29K2995/0041—Crystalline
Abstract
A system can crystallize a saturated polyester hollow body uniformly by heating it while kept spinning depending on temperature rise characteristics resulting from the shape, thickness and light absorption rate at the neck part, and which improves energy efficiency by condensing irradiation light at a part to be crystallized. In the thermal crystallization system (1) of a saturated polyester hollow body for crystallizing the mouth part (11) of a spinning perform (10) by irradiating the mouth part (11) with light from a heater unit (30) thereby heating the mouth part (11), the heater unit (30) comprises a halogen lamp (31), a reflector (32), and a position adjusting means (40) for freely adjusting the irradiation angle of the horizontal distance and the vertical distance relative to the mouth and neck parts of the saturated polyester hollow body, the halogen lamp (31) and the reflector (32), a plurality of heater units (3) being arranged in parallel along the conveying route of the saturated polyester hollow body, through the adjusting means (40) the irradiation positions of the plurality of heater units (30) relative to the mouth and neck parts being different, and the adjusting means (40) beginning to irradiate according to the temperature rise characteristics of the mouth and neck parts.
Description
Technical field
What the present invention relates to is the heating crystallization device and the heating means thereof of saturated polyester hollow body; And then specify, the mouth neck portion that should utilize sealing such as lid that end preform (preform) or bottle, cup etc. are arranged that related is will be formed by the saturated polyester of PET etc. heats also the heating crystallization device and the heating means thereof of the saturated polyester hollow body of crystallization.
Background technology
By the bottle that saturated polyester forms, be through the amorphous tissue that will be usually forms by injection molding forming etc. have end preform to stay the part that should become mouth neck portion after, carry out biaxial stretch blow molding and produced.
This bottle, its flange part, main part and bottom are by molecular orientation, and the container characteristics of its transparency, air-tightness, intensity, resistance to impact etc. is outstanding; And then, the bottle of these flange parts, main part and bottom heat setting is had, these parts are difficult to take place the advantage of the distortion that causes because of contraction when hot filling.
Yet because the mouth neck portion of container is still the state of amorphous tissue, therefore mouth neck portion integral body or screw division etc. deform when carrying out hot filling, and sealing is impaired easily.
In order to overcome this shortcoming, suggestion makes the hardness of mouth neck portion and the technology (patent documentation 1) that hear resistance improves through mouth neck portion heating and crystallization with preform or container.
In addition, in order mouth neck portion to be deformed and to make its crystallization effectively, suggestion then improves heating-up temperature and carries out the technology of heating crystallization (patent documentation 2) after mouth neck portion was heated with low temperature in the phase I.
And then suggestion utilizes a plurality of near infrared ray heaters of arranging along the preform carrying path, with the technology of the crystallization method of mouth neck portion heating crystallization; Should technology, the interior outside of heating gate neck (patent documentation 3) equably if adopt.
In addition, existing Heater group is, penetrated by the reflection of light that the near infrared ray heater of having implemented ceramic coating on the side demifacet and reflecting plate constitute.
This near infrared ray heater is arranged side by side in above-below direction two places of the substantial middle portion in reflecting plate curved surface field.In addition, the reflecting plate tunnel-shaped that adopts curved surface that cylinder is split along central shaft and prolong in tangential direction from the both ends of this curved surface.
Through adopting this shape, the irradiates light that irradiates from the near infrared ray heater is by ceramic coating and baffle reflection, or is not reflected and directly emits to portion's of being heated (patent documentation 4).
And then, disclose the mouth spigot that does not extend except that the bulge of lower end as the albefaction part, simultaneously, with the bulge that does not extend of mouth spigot lower end as the technology (patent documentation 5) of albefaction PET bottle partly not.Should technology if adopt, the albefaction part of mouthful spigot has sufficient resistance to impact when hear resistance improves; And then the not albefaction part of through port spigot lower end can obtain the flexibility of appropriateness, thereby can prevent in packing job etc., is applied in excessive power and the generation of damaged unfavorable condition.
Patent documentation 1: special fair 3-67499 communique
Patent documentation 2: special fair 3-26646 communique
Patent documentation 3: special fair 5-9261 communique
Patent documentation 4: special fair 6-22876 communique
Patent documentation 5: special fair 4-79901 communique
Summary of the invention
But; Though existing Heater group ceramic coating and reflecting plate reflect irradiates light; But because general radial ground shines to the irradiation side, therefore depart from mouth neck portion and irradiated irradiates light is many, be difficult to irradiates light only is concentrated on the part that needs heating crystallization.
In addition, the mouth neck portion of saturated polyester hollow body is provided with screw thread and neck ring etc. on the periphery of the bottom of mouth neck portion, have the dissimilar complicated shape of wall thickness, and the problems referred to above are obviousization further.And then, also must heat equably in a circumferential direction.
In addition, from the point that the energy effectively utilizes, also require to improve.
The present invention is in order to solve above-mentioned all problems; It is a kind of that its purpose is to provide; Through under the state that makes the saturated polyester hollow body rotation; Irradiates light is concentrated on the part of desiring heating crystallization, and the temperature-raising characteristic that can determine according to shape, wall thickness, rerum natura and the absorptivity by mouth neck portion heats, thereby realizes the heating crystallization device and the heating means thereof of the saturated polyester hollow body of even crystallization.
In order to reach this purpose; The heating crystallization device of saturated polyester hollow body of the present invention is; Through under the state that makes above-mentioned saturated polyester hollow body rotation; To penetrate in the mouth neck portion of saturated polyester hollow body and heat from the illumination of Heater group, make the heating crystallization device of the saturated polyester hollow body of above-mentioned mouth neck portion crystallization; And constitute; Above-mentioned Heater group be provided with the heating gate neck heating lamp, make the concentrator of the light optically focused that irradiates from this heating lamp and adjust position regulating member freely with respect to the irradiating angle of the distance of the horizontal direction mouth neck portion of above-mentioned saturated polyester hollow body, above-mentioned heating lamp and concentrator and vertical direction and above-below direction; And be arranged side by side a plurality of along the transport path of above-mentioned saturated polyester hollow body above-mentioned Heater group; Make a plurality of above-mentioned Heater group different through above-mentioned position regulating member, and begin irradiation according to the temperature-raising characteristic of above-mentioned mouth neck portion for the irradiation position of above-mentioned mouth neck portion.
Like this, owing to can effectively illumination be penetrated on mouth neck portion, therefore can effectively utilize the energy of heating lamp main body, thereby can reduce dissipated power.In addition and since can emphasis heating want the point that heats, therefore can control heating condition accurately.And then, because light is illuminated under the state that makes the saturated polyester hollow body rotation, therefore can carry out uniform heating in a circumferential direction.
In addition, the present invention constitutes, and the position of a plurality of above-mentioned Heater group is adjusted into the light of above-mentioned each Heater group of temperature-raising characteristic irradiation that determines according to shape, wall thickness and absorptivity by above-mentioned mouth neck portion.
Like this and since for irradiation only roughly evenly the words crystallization of the light of luminous intensity uneven mouth neck portion can take place, can want the point that heats according to the heating of temperature-raising characteristic emphasis, therefore can realize further crystallization uniformly.In addition, crystallization control degree accurately, thus can obtain desirable characteristic.
In addition, the present invention constitutes, and the position of a plurality of above-mentioned Heater group is adjusted into, and the light of above-mentioned each Heater group is with the order optically focused of top, center section part and the hypomere portion of above-mentioned mouth neck portion.
In addition, the present invention constitutes, and the position of a plurality of above-mentioned Heater group is adjusted into, and the light of above-mentioned each Heater group is with the central authorities of above-mentioned mouth neck portion, the order optically focused of periphery.
In addition; The heating means of saturated polyester hollow body of the present invention are; Use the heating crystallization device of above-mentioned saturated polyester hollow body; Through under the state that makes above-mentioned saturated polyester hollow body rotation, will penetrate in the mouth neck portion of saturated polyester hollow body and heat from the illumination of Heater group, make the heating means of the saturated polyester hollow body of above-mentioned mouth neck portion crystallization; Be that the configuration of above-mentioned Heater group is a plurality of, make the focal position of the light in a plurality of Heater group different, and the method that begins to heat according to the temperature-raising characteristic of above-mentioned mouth neck portion.
Like this, the present invention also is effectively as heating means, and owing to can effectively illumination be penetrated on mouth neck portion, therefore can effectively utilize the energy of heating lamp, can reduce dissipated power.And then, because light is illuminated under the state that makes the saturated polyester hollow body rotation, therefore can carry out uniform heating in a circumferential direction.
In addition, the present invention does, with the order focusing of the optically focused focus of above-mentioned mouth neck portion with top, center section part and the hypomere portion of above-mentioned mouth neck portion, and the method that heats with the order of top, center section part and hypomere portion.
In addition, the present invention does, with the optically focused focus near on the part at above-mentioned mouth neck portion axle center, then focusing and the method that heats on than the part in this focus the place ahead.
Like this, can begin albefaction, can prevent to be covered the generation that temperature-raising characteristic reduces such unfavorable condition because of light from part near the axle center.
Like above detailed description,,, therefore can improve energy efficiency owing to can effectively illumination be penetrated on mouth neck portion if adopt the heating crystallization device and the heating means thereof of saturated polyester hollow body of the present invention.And then, because light is illuminated under the state that makes the saturated polyester hollow body rotation, therefore can carry out uniform heating in a circumferential direction.
And then, because the temperature-raising characteristic that can determine according to shape, wall thickness and the absorptivity by mouth neck portion is easily adjusted luminous intensity, therefore can make further crystallization equably of mouth neck portion.In addition, also can high accuracy and easily control the degree of crystallinity of mouth neck portion each several part.
Description of drawings
Fig. 1 representes the approximate vertical view of the heating crystallization device of the saturated polyester hollow body that example of the present invention relates to.
The outline elevation of the Heater group of the heating crystallization device of the saturated polyester hollow body that Fig. 2 a representes to be used to explain that example of the present invention relates to.
Fig. 2 b representes to comprise the summary lateral view of Heater group of the cut-away section A-A of Fig. 2 a.
Fig. 3 a representes to explain the summary lateral view of the irradiating state of primary heater group.
Fig. 3 b representes to explain the summary lateral view of the irradiating state of secondary heater group.
Fig. 3 c representes to explain the summary lateral view of the irradiating state of the 3rd Heater group.
Fig. 3 d representes to explain the summary lateral view of the irradiating state of the 4th Heater group.
Fig. 3 e representes to explain the summary lateral view of the irradiating state of the 5th and the 6th Heater group.
Fig. 3 f representes to explain the summary lateral view of the irradiating state of the 7th and the 8th Heater group.
Symbol description
1 heating crystallization device
9 irradiates lights
10 preforms
11 oral areas
12 neck rings
13 screw threads
14 end differences
20 delivery section
21 turntables
22 chain-linked conveyers
23 feeding machines
24 discharge machines
25,26 heating fields
30 (the Heater group of 30a～30f)
31 Halogen lamp LEDs
32 reflecting plates
33 baskets
40 position regulating members
41 parent plates
42 vertical direction movable plates
43a, 45a, 47a bolt
43b, 45b locking nut
44 horizontal direction movable plates
46 link parts
210 supports
The specific embodiment
Below, with reference to accompanying drawing each example that the present invention suits is described.
(the heating crystallization device of saturated polyester hollow body)
Fig. 1 representes the approximate vertical view of the heating crystallization device of the saturated polyester hollow body that example of the present invention relates to.
In Fig. 1; Heating crystallization device 1 constitutes; Be provided with the delivery section 20 of conveying as the preform 10 of the PET bottle of saturated polyester hollow body; With through irradiates light 9 being shone in as the oral area 11 of the preform 10 of the mouth neck portion of saturated polyester hollow body and heat, make a plurality of Heater group 30a～30f of oral area 11 crystallization.
In addition, heating crystallization device 1 is usually as the heating part of preform crystallization system (not shown) and be used.And the heating crystallization device 1 that the present invention relates to is not limited to be used in the situation of preform crystallization system.
(delivery section)
In addition, though delivery section 20 is not shown, be to use known means.For example, support 210 is provided with pinion, and the assigned position in heating field 25,26 is provided with tooth bar.Thus, through heating field 25,26 o'clock, owing to pinion and tooth bar engagement are rotated, so preform 10 to be being that the state of center rotation is transferred with the longitudinal axis at preform 10, and in a circumferential direction by heating equably.And free-wheeling system is not limited to said mechanism.
(Heater group)
The outline elevation of the Heater group of the heating crystallization device of the saturated polyester hollow body that Fig. 2 a representes to be used to explain that example of the present invention relates to.
In addition, Fig. 2 b representes to comprise the summary lateral view of Heater group of the cut-away section A-A of Fig. 2 a.
In Fig. 2 a, 2b, Heater group 30 constitutes, and in the basket 33 of elongated rectangular case shape, contains bar-shaped Halogen lamp LED 31 and reflecting plate 32 as heating lamp, and is supported through position regulating member 40.And the illumination position of each Heater group 30a～30f is different, and other formations are roughly the same.
In addition, so-called " Halogen lamp LED " is meant, in sealing gas, added the infrared lamp of inert gas and micro-halogen species, in this example, uses the near infrared Halogen lamp LED 31 of irradiation.
And employed heating lamp is not limited to Halogen lamp LED 31, for example, also can use through illumination and inject the capable general infrared lamp that heats etc.In addition, heating lamp is not limited to bar-like shape.
Reflecting plate 32 forms the bending with certain focus shown in Fig. 2 b, be on the two dimension the irradiates light that irradiates from Halogen lamp LED 31 9 reflection, and be concentrated on the shape on any F point (illumination point) of oral area 11.Thereby, shown in Fig. 2 a, be the irradiates light 9 that irradiates from bar-shaped Halogen lamp LED 31 be reflected into wire on the three-dimensional.
Like this, Heater group 30 can be penetrated the most of illumination except that a part of light that irradiates from Halogen lamp LED 31 in oral area 11, thereby energy efficiency is enhanced, can reduce dissipated power.
In addition, through reducing dissipated power, for example, it is also passable Heater group 30 not to be carried out water-cooled, can make simple structureization, can seek the reduction of cost of equipment.
And then, through effectively irradiates light 9 being shone in oral area 11, for example, do not utilize the heating of hot blast passable yet, structure is further oversimplified.
And, though not shown, also can on reflecting plate 32, form fin, cooling effectiveness is improved.
This basket 33 is supported the both ends of Halogen lamp LEDs 31, though and not shown, draw the feed cable of Halogen lamp LED 31 from both ends of the surface.
Like this; Heater group 30a～30f is provided with the position regulating member 40 of above-mentioned formation; And can easily set the position relation of basket 33 and oral area 11 through this position regulating member 40, can irradiates light 9 be shone on the assigned position of oral area 11 with the luminous intensity of regulation.In addition, therefore Heater group 30a～30f can be sought the reduction of manufacturing cost expense because structure oversimplifies.
And position regulating member 40 is not limited to above-mentioned formation, so long as be concentrated on the assigned position of oral area 11 through the luminous intensity with regulation, the mechanism that can heat oral area 11 gets final product.In addition, the adjustment of luminous intensity is not only the position relation of control heater group, for example, also can control the voltage of Halogen lamp LED 31.
And, in this example, the number of Heater group is illustrated as eight, but is not limited to this.In addition,, also can this field be utilized as the heating field, ask thereby can seek to save sky though on the peripheral part of the turntable 21 on right side, be not provided with Heater group.
In addition, heating crystallization device 1 constitutes, and makes the illumination position that utilizes Heater group 30a～30f different.Like this, because each Heater group 30a～30f can heat the established part of oral area 11, therefore can high accuracy and easily control the degree of crystallinity of oral area 11 each several parts.
At this, with each Heater group 30a～30f, the temperature-raising characteristic according to shape, wall thickness and absorptivity by the oral area 11 of preform 10 determine shines on the assigned position of oral area 11 irradiates light 9 for good with the luminous intensity of regulation; Like this, for irradiation only roughly evenly the words crystallization of the light of luminous intensity uneven oral area 11 can take place, can want the point that heats according to the heating of temperature-raising characteristic emphasis, therefore can realize further crystallization uniformly.In addition, desiring to make under the degree of crystallinity part condition of different, the crystallization control degree can obtain desirable characteristic accurately.
In addition, so-called " temperature-raising characteristic " is meant, illumination penetrated the specific temperature rise of each one of mouth neck portion when mouth neck portion has carried out heating.For example, the preform 10 of PET bottle is formed with screw thread 13 on the top of oral area 11, be formed with end difference 14 on the center section part, and the bottom is formed with neck ring 12.Therefore, the temperature-raising characteristic of the part that wall thickness is thick diminishes, and temperature is difficult for rising.
In addition, with respect to 10 water white transparencies of the preform before the crystallization, be changed to white after the crystallization, absorptivity changes.Therefore, become big and temperature sharply rises from the part temperature-raising characteristic of water white transparency state albefaction, and on the other hand, the part that the part irradiates light 9 through albefaction is covered utilizes the temperature-raising characteristic of irradiates light 9 sharply to diminish.
That is to say that so-called " according to temperature-raising characteristic " be meant, the meaning of " consider temperature-raising characteristic, with evenly the illuminate condition of crystallization ".
Next, with reference to accompanying drawing the illuminate condition of each Heater group 30a～30f and the action of heating crystallization device 1 are described.And the illuminate condition and the action of the heating crystallization device that the present invention relates to are not limited thereto.
(primary heater group)
At first, Fig. 3 a representes to explain the summary lateral view of the irradiating state of primary heater group 30a.
In Fig. 3 a, primary heater group 30a is adjusted to, and irradiates light 9 is concentrated on the center of top of oral area 11.That is to say that Heater group 30a is with the state towards horizontal direction, be set in the top of oral area 11 and approach on the position of oral area 11.
Next, Fig. 3 b representes to explain the summary lateral view of the irradiating state of secondary heater group 30b.
In Fig. 3 b, secondary heater group 30b is adjusted to, and irradiates light 9 is concentrated on the top periphery of oral area 11.That is to say that Heater group 30b compares with Heater group 30a, be set in the horizontal direction from oral area 11 away from the position on.
The irradiates light 9 of heating crystallization device 1 through irradiating from Heater group 30b, the screw thread 13 of emphasis heating and crystallization oral area 11.
Next, Fig. 3 c representes to explain the summary lateral view of the irradiating state of the 3rd Heater group 30c.
In Fig. 3 c, the 3rd Heater group 30c is adjusted to, and irradiates light 9 is concentrated on the center section part central authorities of oral area 11.That is to say that Heater group 30c compares with Heater group 30b, be set in the horizontal direction near on the oral area 11 and the position of moving downwards.
Next, Fig. 3 d representes to explain the summary lateral view of the irradiating state of the 4th Heater group 30d.
In Fig. 3 d, the 4th Heater group 30d is adjusted to, and irradiates light 9 is concentrated on the center section part periphery of oral area 11.That is to say that Heater group 30d compares with Heater group 30c, be set in the horizontal direction from oral area 11 away from the position on.
The irradiates light 9 of heating crystallization device 1 through irradiating from Heater group 30d, the end difference 14 of emphasis heating and crystallization oral area 11.
Next, Fig. 3 e representes to explain the summary lateral view of the irradiating state of the 5th and the 6th Heater group 30e.
In Fig. 3 e, the 5th and the 6th Heater group 30e is adjusted to, and irradiates light 9 is concentrated on the hypomere portion periphery of oral area 11 from oblique upper.That is to say that Heater group 30e compares with Heater group 30d, be set in the horizontal direction from oral area 11 away from and the position of moving and rotating downwards to the top on.
Next, Fig. 3 f representes to explain the summary lateral view of the irradiating state of the 7th and the 8th Heater group 30f.
In Fig. 3 f, the 7th and the 8th Heater group 30f is adjusted to, and irradiates light 9 is concentrated on the central authorities of hypomere portion of oral area 11 from oblique upper.That is to say that Heater group 30f compares with Heater group 30e, be set in the horizontal direction on the position near oral area 11.
The irradiates light 9 of heating crystallization device 1 through irradiating from Heater group 30f integrally heats the end face and the outer peripheral face of oral area 11, and promotes crystallization.And Heater group 30f has been arranged side by side two.
Like this, therefore the heating crystallization device 1 of the saturated polyester hollow body of this example owing to can shine the light optically focused that irradiates from Halogen lamp LED 31 on the oral area 11 as heating target with irradiates light 9, thereby can improve energy efficiency effectively.
In addition, owing to shine on the assigned position of oral area 11 according to the temperature-raising characteristic of oral area 11 irradiates light with the regulation luminous intensity, therefore, even, also can realize further crystallization uniformly for example for different, the complex-shaped oral area 11 of wall thickness.
And then, on one side,, therefore can carry out uniform heating in a circumferential direction Yi Bian irradiates light 9 is shone on oral area 11 owing to can make preform 10 rotations.
First embodiment
Next, first embodiment to above-mentioned heating crystallization device 1 describes.
In the present embodiment, use heating crystallization device 1 (number of Heater group is 20), the oral area 11 of heating preform 10, and make oral area 11 crystallization.At this moment, heating crystallization device 1 the most compatibly is set at the illumination position to be changed on level and vertical two directions, and makes the roughly integrally crystallization of oral area 11 do, the average crystallite degree is about 35 percents by volume.And initial preform temperature is about 35 ℃, and be about two minutes heat time heating time.
In the above-mentioned heating crystallization device 1, the dissipated power of Heater group 30 adds up to 40KW.With respect to this, using existing heating crystallization device to make with roughly the same condition under the situation of oral area 11 crystallization, the dissipated power of Heater group adds up to 120kW.That is to say that heating crystallization device 1 can economize on electricity about 67% with the dissipated power of Heater group 30.
Second embodiment
Next, second embodiment to above-mentioned heating crystallization device 1 describes.
In the present embodiment, use the most compatibly to be set at the heating crystallization device 1 that the illumination position changes in the horizontal direction, the oral area 11 of heating preform 10, and make oral area 11 crystallization.And other conditions and first embodiment are roughly the same.
In the above-mentioned heating crystallization device 1, the dissipated power of Heater group 30 adds up to 45KW.That is to say that heating crystallization device 1 can economize on electricity about 63% with the dissipated power of Heater group 30.
In addition, the heating crystallization device 1 of present embodiment the most compatibly is set at the illumination position to change in the horizontal direction, but is not limited to this formation, for example, also can adopt to be set at the formation that the illumination position is changed in vertical direction.
(heating means of saturated polyester hollow body)
The heating means of this example, and be through making preform 10 rotations, and meanwhile will shine in the oral area 11 of preform 10 from the irradiates light 9 of Heater group 30 and heat, thus make the heating means of the saturated polyester hollow body of oral area 11 crystallization; Be through will being concentrated on the assigned position of oral area 11 from the light of Heater group 30 luminous intensity with regulation, thus the method for heating oral area 11.
Like this, owing to, can reduce the light of not incident oral area 11, therefore can improve energy efficiency, thereby can reduce dissipated power through being concentrated on oral area 11 from the light that Halogen lamp LED 31 irradiates.
In addition, through the focal length of adjustment, can adjust luminous intensity with respect to oral area 11.That is to say, diminish as if the irradiated area that focal length is adjusted into irradiates light 9, then the luminous intensity grow; On the contrary, become big if focal length is adjusted into irradiated area, then luminous intensity dies down.Like this, can easily regulate the luminous intensity of the assigned position of oral area 11, can control accurately and add heat energy.
In addition, in general, the oral area 11 complex-shaped, that wall thickness is different or absorptivity is different, the temperature-raising characteristic in each one is different.For example, under the heated situation of light through the even luminous intensity as sunshine, the part that wall thickness is thick, its part near thermal source heats up easily, and stow away from heat is difficult to heat up more more.
Like this, if the unsettled words of heating condition, the inadequate part mechanical strength of crystallization step-down; In addition, too the part of crystallization becomes fragile and deforms, and requires further crystallization equably thus.
Therefore, be good to shine according to the temperature-raising characteristic in each one of oral area 11 control in the luminous intensity of the light of each one; If like this, for example, even, also can make the temperature curve of each one consistent for the oral area 11 of complicated shape, therefore crystallization equably.
For example, if with respect to the part albefaction of thermal source the place ahead, then the rear part that covered of light heats up through the heat conduction, and temperature-raising characteristic diminishes.In this case, for light is not covered, with at first with the focal length of optically focused to part in the wings, and forwards be heated to be good at leisure from the rear.
In addition; So that light preferentially is concentrated on the difficult part that arrives of the light of oral area 11 is good; Under oral area 11 situation that absorptivity changes through heating whitening or variable color, can should change thus, heat effectively according to the variation or the utilization of absorptivity.
And then; As stated, using the reflecting plate 32 with certain focus as concentrator, the method that the position is set and/or direction is set of adjustment Halogen lamp LED 31 and reflecting plate 32 is good; Like this, can easily irradiates light 9 be shone on the assigned position of oral area 11 with the luminous intensity of regulation.
More than; Heating crystallization device and heating means thereof to saturated polyester hollow body of the present invention; Show with desirable example to be illustrated, but the present invention certainly carries out various changes within the scope of the invention and implements not only for due to above-mentioned example.
For example; The heating crystallization device 1 of above-mentioned example according to the shape set of the oral area 11 of preform 10 Heater group 30a～30f; But be not limited to above-mentioned setting, also can replace Heater group 30a, 30b and Heater group 30c, 30d, or increase and decrease the number of each Heater group.
Utilize possibility in the industry
The heating crystallization device and the heating means thereof of saturated polyester hollow body of the present invention, its heating target are not limited to the oral area 11 of the preform 10 of PET bottle, for example, also can suitably be used on the mouth neck portion of container beyond the PET bottle etc.
Claims (7)
1. the heating crystallization device of a saturated polyester hollow body; Be through under the state that makes above-mentioned saturated polyester hollow body rotation; To penetrate in the mouth neck portion of saturated polyester hollow body and heat from the illumination of Heater group; Thereby make the device of above-mentioned mouth neck portion crystallization; It is characterized in that constituting, said Heater group is provided with: the concentrator of heating lamp, the light optically focused that will irradiate from this heating lamp and adjust position regulating member freely with respect to the irradiating angle of the distance of the horizontal direction mouth neck portion of above-mentioned saturated polyester hollow body, above-mentioned heating lamp and concentrator and vertical direction and above-below direction, and
Be arranged side by side a plurality of along the transport path of above-mentioned saturated polyester hollow body said Heater group; Make a plurality of above-mentioned Heater group different through above-mentioned position regulating member, and begin irradiation according to the temperature-raising characteristic of above-mentioned mouth neck portion for the irradiation position of above-mentioned mouth neck portion.
2. the heating crystallization device of saturated polyester hollow body as claimed in claim 1; It is characterized in that; The position of a plurality of said Heater group is adjusted into, and the temperature-raising characteristic that determines according to shape, wall thickness and absorptivity by above-mentioned mouth neck portion shines the light of above-mentioned each Heater group.
3. the heating crystallization device of saturated polyester hollow body as claimed in claim 2; It is characterized in that; The position of a plurality of said Heater group is adjusted into, and the light of above-mentioned each Heater group is with the order optically focused of top, center section part and the hypomere portion of above-mentioned mouth neck portion.
4. the heating crystallization device of saturated polyester hollow body as claimed in claim 2 is characterized in that, the position of a plurality of said Heater group is adjusted into, and the light of above-mentioned each Heater group is with the central authorities of above-mentioned mouth neck portion, the order optically focused of periphery.
5. the heating means of a saturated polyester hollow body; Use the heating crystallization device of the described saturated polyester hollow body of claim 1; Through under the state that makes above-mentioned saturated polyester hollow body rotation, will penetrate in the mouth neck portion of saturated polyester hollow body and heat from the illumination of Heater group, thereby make the heating means of above-mentioned mouth neck portion crystallization; It is characterized in that
Said Heater group configuration is a plurality of, make the focal position of the light in a plurality of Heater group different, and begin heating according to the temperature-raising characteristic of above-mentioned mouth neck portion.
6. the heating means of saturated polyester hollow body as claimed in claim 5 is characterized in that,
The optically focused focus of said mouth neck portion is focused with the order of top, center section part and the hypomere portion of above-mentioned mouth neck portion, and heat with the order of top, center section part and hypomere portion.
7. the heating means of saturated polyester hollow body as claimed in claim 5 is characterized in that,
Make the optically focused focus near the part at said mouth neck portion axle center, then focusing and heating on than the part in this focus the place ahead.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2004/010709 WO2006011201A1 (en) | 2004-07-28 | 2004-07-28 | Thermal crystallization system of saturated polyester hollow body and its heating method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1984766A CN1984766A (en) | 2007-06-20 |
| CN1984766B true CN1984766B (en) | 2012-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2004800435296A Expired - Fee Related CN1984766B (en) | 2004-07-28 | 2004-07-28 | Thermal crystallization system of saturated polyester hollow body and its heating method |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP4577311B2 (en) |
| CN (1) | CN1984766B (en) |
| WO (1) | WO2006011201A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008060572A1 (en) * | 2008-12-04 | 2010-06-10 | Krones Ag | Apparatus for heating plastic containers and resonator therefor |
| CH702464A1 (en) * | 2009-12-23 | 2011-06-30 | Alpla Werke | Preform for producing plastic containers in a two-stage stretch blow molding process. |
| KR101694797B1 (en) | 2010-12-21 | 2017-01-11 | 삼성전자주식회사 | Method of operating a three-dimensional image sensor |
| JP6668672B2 (en) * | 2015-10-14 | 2020-03-18 | 大日本印刷株式会社 | Preform, method for producing preform, apparatus for crystallizing preform, plastic bottle, and method for producing filler |
| JP6907754B2 (en) * | 2017-06-23 | 2021-07-21 | 大日本印刷株式会社 | Preform heating device and preform heating method |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60927A (en) * | 1983-06-17 | 1985-01-07 | Mitsubishi Plastics Ind Ltd | Crystallizing method of mouth part of bottle |
| JPS60125650A (en) * | 1983-12-13 | 1985-07-04 | Hokkai Can Co Ltd | Blushing method of mouth of container made of polyethylene terephthalate resin and device thereof |
| JPH0622874B2 (en) * | 1987-06-10 | 1994-03-30 | 東洋製罐株式会社 | Heating method for polymer resin moldings |
| JPH0622876B2 (en) * | 1988-07-25 | 1994-03-30 | 東洋製罐株式会社 | Holder, driving core and cooling device in preform crystallizer |
| JPH11235751A (en) * | 1998-02-20 | 1999-08-31 | Ueno Hiroshi | Crystallization of plastic molded object |
-
2004
- 2004-07-28 CN CN2004800435296A patent/CN1984766B/en not_active Expired - Fee Related
- 2004-07-28 JP JP2006527734A patent/JP4577311B2/en active Active
- 2004-07-28 WO PCT/JP2004/010709 patent/WO2006011201A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| WO2006011201A1 (en) | 2006-02-02 |
| JP4577311B2 (en) | 2010-11-10 |
| JPWO2006011201A1 (en) | 2008-05-01 |
| CN1984766A (en) | 2007-06-20 |
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