CN104070638B - The injection molding forming method of container, container and the die injection moulding of container - Google Patents

The injection molding forming method of container, container and the die injection moulding of container Download PDF

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Publication number
CN104070638B
CN104070638B CN201310632166.0A CN201310632166A CN104070638B CN 104070638 B CN104070638 B CN 104070638B CN 201310632166 A CN201310632166 A CN 201310632166A CN 104070638 B CN104070638 B CN 104070638B
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China
Prior art keywords
mentioned
neck
slide cores
main body
container
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Expired - Fee Related
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CN201310632166.0A
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Chinese (zh)
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CN104070638A (en
Inventor
仲野克德
白崎修司
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HATA Co Ltd
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HATA Co Ltd
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Publication of CN104070638A publication Critical patent/CN104070638A/en
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Expired - Fee Related legal-status Critical Current
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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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/26—Moulds
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/40—Removing or ejecting moulded articles
    • B29C45/44—Removing or ejecting moulded articles for undercut articles
    • B29C45/4435—Removing or ejecting moulded articles for undercut articles using inclined, tiltable or flexible undercut forming elements driven by the ejector means
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/26—Moulds
    • B29C45/33—Moulds having transversely, e.g. radially, movable mould parts
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/26—Moulds
    • B29C45/36—Moulds having means for locating or centering cores
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D99/00—Subject matter not provided for in other groups of this subclass
    • B29D99/0096—Producing closure members for containers, e.g. closure caps or stoppers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D11/00—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of plastics material
    • B65D11/02—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of plastics material of curved cross-section
    • B65D11/06—Drums or barrels
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C2045/1486—Details, accessories and auxiliary operations
    • B29C2045/14901—Coating a sheet-like insert smaller than the dimensions of the adjacent mould wall
    • B29C2045/14918—Coating a sheet-like insert smaller than the dimensions of the adjacent mould wall in-mould-labelling
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/26—Moulds
    • B29C45/36—Moulds having means for locating or centering cores
    • B29C2045/363—Moulds having means for locating or centering cores using a movable core or core part
    • 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
    • B29L2031/56—Stoppers or lids for bottles, jars, or the like, e.g. closures

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

The present invention is container, the injection molding forming method of container and the die injection moulding of container, by injection mo(u)lding to the inner side at container body have back-off, the container of wide-mouth carries out shaping, improve the air-tightness of container, and manufacture container with low cost.Die injection moulding (200) possesses: have for the neck (112) of shaping container body (110) inner peripheral surface to opening portion (117) end (118), in the neck of circumferential continuous print first forming surface side form (90); Side form (90) in through neck, and be used for being shaped towards first slide cores (50) of the inner peripheral surface continuous print back-off (114) of the inner peripheral surface in the cylinder portion (111) of container body (110) and neck (112) and the second slide cores (60); And side form (90) in through neck, and be configured in by a pair first slide cores (50) and a pair second slide cores (60) round region in pellet (70).

Description

The injection molding forming method of container, container and the die injection moulding of container
Technical field
The present invention relates to container, the injection molding forming method of container and the die injection moulding of container.In more detail, container of the present invention is wide-mouth, has back-off (Japanese: ア ン ダ ー カ ッ ト) in the inner side of container body.Injection molding forming method of the present invention and die injection moulding are used for the manufacture of such container.
Background technology
Past, as filling such as butyraceous cosmetic, used for cosmetic container, the container of known wide-mouth.The container of wide-mouth, is formed primarily of container body, gasket seal and cap.
Cap is installed in the neck of container body.The also known container making container body roughly the same with the external diameter of cap.The container body of such container, is provided with difference at the external diameter of cylinder portion and neck.As arranged difference in the cylinder portion of container body and the external diameter of neck, then at the outer peripheral face of container body, form the part (shoulder) that external diameter changes from neck to cylinder portion.
In the container being formed with shoulder, the inner peripheral surface that there is shoulder has the type of back-off and does not have the type of back-off.The inner peripheral surface of shoulder does not have the type of back-off, although cylinder portion external diameter compared with neck is large, internal diameter is changeless from cylinder portion to neck.This type, because there is no back-off, so, when shaping by injection mo(u)lding means, easily carry out the withdrawing pattern of mould.But the wall thickness in the cylinder portion of container body is thickening compared with the wall thickness of neck, the use quantitative change of resin is many.In addition, because be heavy wall, so resin is difficult to cooling curing during injection mo(u)lding, injection mo(u)lding is time-consuming.Therefore, there is manufacturing cost high and be difficult to provide with low cost the problem of container.
On the other hand, the inner peripheral surface of shoulder has the type of back-off, and the degree of depth of back-off is larger, then can be formed thinner by the wall thickness in the cylinder portion of container body, can reduce the use amount of resin.In addition, as wall thickness is thin, then resin easy cooling curing during injection mo(u)lding, can shorten the time of injection mo(u)lding.Therefore, manufacturing cost suppressed, provide container to become possibility with low cost.But, because there is back-off, so, become difficulty at the withdrawing pattern being carried out shaping situation bed die by injection mo(u)lding.As had by the manufacture of injection mo(u)lding means back-off, the technology of the container of wide-mouth, known such as patent document 1,2.
In the injection molding technology of patent document 1,2, the withdrawing pattern of mould is undertaken by so-called pressure withdrawing pattern.Specifically, after be filled with resin in the die cavity of die injection moulding, before resin cooling curing, carry out die sinking, the mould larger compared with the internal diameter of opening portion from the opening portion drawing of the neck of the container body as formed body carries out withdrawing pattern.By the withdrawing pattern that this forces withdrawing pattern to carry out, there is following such problem.
First, force withdrawing pattern because be made opening portion be out of shape before the complete cooling curing of resin to carry out the withdrawing pattern of mould, so, be difficult to obtain the formed products of the shape of the forming surface verily having reproduced mould.Particularly, because the dimensional accuracy step-down of the opening portion of container body, so the air-tightness under the state of installing cap is low.Such as, for the container of the filling of cosmetic, being arranged on by cap under the state on container body, require high air-tightness.This be in order under the environment being placed on indoor high temperature with the state being filled with cosmetic when also can prevent from being caused by the expansion of content, internal gas content, internal gas leakage.But the dimensional accuracy as the opening portion of container body is low, even if then adopt gasket seal, also in air-tightness, deviation is produced for each product.Therefore, as the withdrawing pattern by forcing withdrawing pattern to carry out container body, be then difficult to meet the air-tightness be required.
In addition, force withdrawing pattern, as dark step-like in made by back-off, then the withdrawing pattern of mould becomes difficulty, so, need back-off by shallow and level and smooth Surface forming, make withdrawing pattern easy.Because the restriction of the degree of depth of back-off, shape, sometimes can not the wall thickness in the cylinder portion of container body be formed fully thin, form unnecessary wall thickness part at the inner peripheral surface of shoulder.Therefore, the use amount of resin can not be cut down, be difficult to manufacture with low cost.
Further, force withdrawing pattern, because be made opening portion be out of shape before the complete cooling curing of resin, carry out the withdrawing pattern of mould, so, these multiple condition of molding on opportunity of the temperature of resin, withdrawing pattern must be managed according to precision target.As departed from condition of molding, then there is defective work.But, because be difficult to manage multiple conditions of molding according to precision target, how do disqualification rate and all uprise, so, be difficult to manufacture with low cost.
That is, as the inner side being molded over container body by injection mo(u)lding have back-off, the technology of the container of wide-mouth, past, the known technology by forcing withdrawing pattern to carry out withdrawing pattern, but be difficult to the air-tightness meeting containers demand in pressure withdrawing pattern.In addition, in pressure withdrawing pattern, be also difficult to manufacture container with low cost.
In addition, as injection mo(u)lding have back-off, the technology of the container of wide-mouth, the also injection molding technology of the so-called telescopic core of known use.Telescopic core is by being extracted by centrepin, the mould of the halved core cut undergauge to the inside.As used telescopic core, then can make mould undergauge when withdrawing pattern, so, do not force withdrawing pattern just can carry out withdrawing pattern to mould.But, as used telescopic core, then there is the problem forming parting line on container body in the position corresponding with the divisional plane of telescopic core.As the opening portion of the neck at container body, particularly form parting line in the end of opening portion, then because parting line small concavo-convex, the contact of gasket seal, cap becomes uneven, air-tightness declines, and there is the problem that content, the internal gas position from contact step-down spills.
Patent document 1: Japanese Unexamined Patent Publication 2003-155020 publication
Patent document 2: Japanese Unexamined Patent Publication 2005-112444 publication
Summary of the invention
The present invention, makes to solve above-mentioned problem.1st object of the present invention, be by injection mo(u)lding to the inner side at container body have back-off, the container of wide-mouth carries out shaping, and improves the air-tightness of container.2nd object of the present invention manufactures container with low cost.
The problem that will solve of the present invention as described above, is described the means for solving this problem below.
That is, the die injection moulding of the container of the 1st invention is the die injection moulding having the container of back-off in the inner side of container body; Wherein:
Possess side form in neck, a pair first slide cores, a pair second slide cores, and pellet;
Side form in this neck, have for the neck of shaping container body inner peripheral surface to opening portion end, in circumferential continuous print first forming surface;
These a pair first slide cores, side form in through above-mentioned neck, and, there is the second forming surface, this second forming surface is used for the part of inner peripheral surface in the cylinder portion of shaping said vesse main body, and from the inner peripheral surface in the cylinder portion of said vesse main body to a part for the inner peripheral surface continuous print back-off of above-mentioned neck;
These a pair second slide cores, side form in through above-mentioned neck, and, there is the 3rd forming surface, 3rd forming surface is used for the part of inner peripheral surface in the cylinder portion of shaping said vesse main body, and from the inner peripheral surface in the cylinder portion of said vesse main body to a part for the inner peripheral surface continuous print back-off of above-mentioned neck;
This pellet, side form in through above-mentioned neck, and, be configured in by above-mentioned a pair first slide cores and above-mentioned a pair second slide cores round region in;
Relatively moved to first direction relative to above-mentioned pellet with side form in above-mentioned neck by above-mentioned a pair first slide cores, thus make above-mentioned second forming surface move to the radially inner side more leaning on the neck of above-mentioned container body than above-mentioned first forming surface of side form in above-mentioned neck;
Then, by above-mentioned a pair second slide cores relative to side form, above-mentioned first slide cores and above-mentioned pellet in above-mentioned neck relatively to the movement further of above-mentioned first direction, thus make above-mentioned 3rd forming surface move to above-mentioned first forming surface than side form in above-mentioned neck more by the radially inner side of neck of above-mentioned container body.
The die injection moulding of the container of the 2nd invention is the die injection moulding of the container of the 1st invention; Wherein:
Above-mentioned first slide cores possesses the first support of side form in through above-mentioned neck, and above-mentioned second slide cores possesses the second support of side form in through above-mentioned neck; Further, fixed die, the first sliding panel is also possessed, and the second sliding panel;
This fixed die is fixed above-mentioned pellet;
This first sliding panel, can move to above-mentioned first direction relative to above-mentioned fixed die, keep side form in above-mentioned neck, further, in above-mentioned neck between side form to make above-mentioned first support of above-mentioned a pair first slide cores keep above-mentioned first support of above-mentioned a pair first slide cores along the mode radially slided freely of the neck of said vesse main body;
This second sliding panel, can move to above-mentioned first direction relative to above-mentioned fixed die and above-mentioned pellet, above-mentioned second support of above-mentioned a pair second slide cores is kept along the mode radially slided freely of the neck of said vesse main body to make above-mentioned second support of above-mentioned a pair second slide cores
Moved to above-mentioned first direction relative to above-mentioned fixed die by above-mentioned first sliding panel and above-mentioned second sliding panel, thus side form in above-mentioned a pair first slide cores and above-mentioned neck is relatively moved to first direction relative to above-mentioned pellet, and the radially inner side making above-mentioned first support of above-mentioned a pair first slide cores upwards state the neck of container body relative to side form in above-mentioned neck moves, above-mentioned second forming surface of above-mentioned a pair first slide cores is made to move to the radially inner side more leaning on the neck of above-mentioned container body than above-mentioned first forming surface of side form in above-mentioned neck,
Then, by above-mentioned second sliding panel relative to above-mentioned fixed die and above-mentioned first sliding panel to the movement further of above-mentioned first direction, thus make above-mentioned a pair second slide cores relative to side form in above-mentioned neck, above-mentioned first slide cores and above-mentioned pellet are relatively to the movement further of above-mentioned first direction, and, above-mentioned second support of above-mentioned a pair second slide cores is made upwards to state moving axially of the second support relative to side form in above-mentioned neck, above-mentioned 3rd forming surface of above-mentioned a pair second slide cores is made to move to the radially inner side more leaning on the neck of above-mentioned container body than above-mentioned first forming surface of side form in above-mentioned neck.
The die injection moulding of the container of the 3rd invention is the die injection moulding of the container of the 2nd invention; Wherein:
Above-mentioned pellet, also has the fifty percentth profile, the first sliding surface, and the second sliding surface, fifty percentth profile is general square shape, for the central portion of the inner face of the bottom of shaping said vesse main body, this first sliding surface contacts with above-mentioned first slide cores, and this second sliding surface contacts with above-mentioned second slide cores;
Above-mentioned a pair first slide cores, also there is the sixty percentth profile, the 3rd sliding surface, with the 4th sliding surface, sixty percentth profile in the inner face of the bottom of the said vesse main body that is shaped, clip by the shaping part part in opposite directions of above-mentioned fifty percentth profile, 3rd sliding surface contacts with the first sliding surface of above-mentioned pellet, and the 4th sliding surface contacts with above-mentioned second slide cores;
Above-mentioned a pair second slide cores, also there is the seventy percentth profile and the 5th sliding surface, seventy percentth profile in the inner face of the bottom of the said vesse main body that is shaped, by the shaping part of above-mentioned fifty percentth profile and by the part beyond the shaping part of above-mentioned sixty percentth profile, the second sliding surface and above-mentioned first slide cores of the 5th sliding surface and above-mentioned pellet contact;
Above-mentioned a pair first slide cores, when carrying out moving so that when making above-mentioned second forming surface be in the radially inner side of the neck of said vesse main body compared with above-mentioned first forming surface of side form in above-mentioned neck, above-mentioned 4th sliding surface being contacted with above-mentioned a pair second slide cores and moves;
Above-mentioned a pair second slide cores, when carrying out moving so that when making above-mentioned 3rd forming surface be in the radially inner side of the neck of said vesse main body compared with above-mentioned first forming surface of side form in above-mentioned neck, above-mentioned 5th sliding surface being contacted with above-mentioned a pair first slide cores and moves.
The container of the 4th invention is the container having back-off in the inner side of container body; Wherein:
The inner peripheral surface in the cylinder portion of the inner face in the bottom of said vesse main body, said vesse main body, with the inner peripheral surface in the cylinder portion from said vesse main body on the inner peripheral surface continuous print back-off of above-mentioned neck, there are the multiple parting lines produced by the forming surface being divided into multiple die injection mouldings;
Above-mentioned parting line, by a pair first slide cores, a pair second slide cores, and be configured in by above-mentioned a pair first slide cores and above-mentioned a pair second slide cores round region in pellet formed;
Parting line is not had from the inner peripheral surface of the neck of said vesse main body to the end of opening portion.
The container of the 5th invention, has back-off in the inner side of container body;
On the inner face of the bottom of said vesse main body, there are the multiple parting lines produced by the forming surface being divided into multiple die injection mouldings;
Parting line is not had from the inner peripheral surface of the neck of said vesse main body to the end of opening portion;
It is characterized in that of this container:
The die injection moulding of shaping said vesse main body, has the fifty percentth profile, the sixty percentth profile, and the seventy percentth profile; Fifty percentth profile is general square shape, for the central portion of the inner face of the bottom of shaping said vesse main body, sixty percentth profile, for in the inner face of the bottom of the said vesse main body that is shaped, clip by the shaping part part in opposite directions of above-mentioned fifty percentth profile, seventy percentth profile, for in the inner face of the bottom of the said vesse main body that is shaped, by the shaping part of above-mentioned fifty percentth profile and by the part beyond the shaping part of above-mentioned sixty percentth profile
The parting line of the inner face of the bottom of said vesse main body, there is the first parting line produced by above-mentioned fifty percentth profile and above-mentioned sixty percentth profile, the second parting line produced by above-mentioned fifty percentth profile and above-mentioned seventy percentth profile, and the 3rd parting line produced by above-mentioned sixty percentth profile and above-mentioned seventy percentth profile.
The container of the 6th invention, has back-off in the inner side of container body;
The inner peripheral surface in the cylinder portion of the inner face in the bottom of said vesse main body, said vesse main body, with the inner peripheral surface in the cylinder portion from said vesse main body on the inner peripheral surface continuous print back-off of above-mentioned neck, there are the multiple parting lines produced by the forming surface being divided into multiple die injection mouldings;
Parting line is not had from the inner peripheral surface of the neck of said vesse main body to the end of opening portion;
It is characterized in that of this container:
The die injection moulding of shaping said vesse main body, possesses side form in neck, pellet, a pair first slide cores, and a pair second slide cores;
Side form in this neck, have for the shaping neck from said vesse main body inner peripheral surface to opening portion end, in circumferential continuous print first forming surface;
This pellet, have the central portion of the inner face of the bottom for shaping said vesse main body, the fifty percentth profile of general square shape;
These a pair first slide cores, there is the sixty percentth profile and the second forming surface, sixty percentth profile in the inner face of the bottom of the said vesse main body that is shaped, clip by the shaping part part in opposite directions of above-mentioned fifty percentth profile, this second forming surface be used for shaping from by the shaping partial continuous of above-mentioned sixty percentth profile, the part of the inner peripheral surface in the cylinder portion of said vesse main body, and from the inner peripheral surface in the cylinder portion of said vesse main body to a part for the inner peripheral surface continuous print back-off of above-mentioned neck;
These a pair second slide cores, there is the seventy percentth profile and the 3rd forming surface, seventy percentth profile in the inner face of the bottom of the said vesse main body that is shaped, by the shaping part of above-mentioned fifty percentth profile and by the part beyond the shaping part of above-mentioned sixty percentth profile, 3rd forming surface be used for shaping from by the shaping partial continuous of above-mentioned seventy percentth profile, the part of the inner peripheral surface in the cylinder portion of said vesse main body, and from the inner peripheral surface in the cylinder portion of said vesse main body to a part for the inner peripheral surface continuous print back-off of above-mentioned neck
On the inner face of the bottom of said vesse main body, there is the first parting line produced by above-mentioned pellet and above-mentioned first slide cores, the second parting line produced by above-mentioned pellet and above-mentioned second slide cores, and the 3rd parting line produced by above-mentioned first slide cores and above-mentioned second slide cores;
On the inner peripheral surface continuous print back-off of the inner peripheral surface in the cylinder portion with said vesse main body and above-mentioned neck, there is the tetrad segregation types line produced by above-mentioned first slide cores and above-mentioned second slide cores.
The container of the 7th invention, this container uses the die injection moulding of the container of the invention of any one in the 1st to the 3rd to carry out shaping.
The injection molding forming method of the container of the invention of the 8th, be the use of the die injection moulding of the container of the invention of any one in the 1st to the 3rd, the injection molding forming method of container;
Wherein:
Above-mentioned die injection moulding also comprises main body outer side mold, and this main body outside mould has the 4th forming face of the outer peripheral face in the cylinder portion for shaping said vesse main body;
Be included in before type intracavitary administration synthetic resin with the operation of the mode label allocation around the second forming surface of above-mentioned first slide cores and the 3rd forming surface of the second slide cores.
The container of the invention of the 9th is the container of the invention of any one in the 4th to the 7th;
Wherein:
The label that outer peripheral face roughly around the cylinder portion of said vesse main body encloses is carried out in-molded;
The both ends of above-mentioned label are not overlapping, and this part is observed confirmation unit as the remaining quantity of content.
According to the present invention, by injection mo(u)lding to the inner side at container body have back-off, the container of wide-mouth carries out shaping, can obtain the formed products of the shape of the forming surface verily reproducing mould.In addition, the inner peripheral surface of the neck of container body, to the end of opening portion, does not form parting line.Therefore, the contact of gasket seal, cap becomes even, can make the container that air-tightness is high.In addition, thinning by the wall thickness of the back-off part and cylinder portion that make container body, the use amount of resin can be cut down, and, disqualification rate can be made to decline, so, container can be manufactured with low cost.
Accompanying drawing explanation
Fig. 1 is the side view of the container 100 of embodiments of the present invention.
Fig. 2 (A) is the sectional view of the state of having installed lid 120 on the container body 110 of container 100 through gasket seal 130, and (B) is the sectional view of the state that lid 120 and gasket seal 130 have been pulled down by container body 110.
Fig. 3 be the die injection moulding 200 of the container 100 of embodiments of the present invention is described analyse and observe schematic drawing.
Fig. 4 be cut off with the direction orthogonal with Fig. 3, die injection moulding 200 is described analyse and observe schematic drawing.
Fig. 5 be under the state by die injection moulding 200 matched moulds, the combination of first slide cores 50, second slide cores 60 and pellet 70 is described overlooks schematic drawing.
Fig. 6 be the die sinking operation of die injection moulding 200 is described analyse and observe schematic drawing.
Fig. 7 be cut off with the direction orthogonal with Fig. 6, die injection moulding 200 die sinking operation is described analyse and observe schematic drawing.
Fig. 8 be the die sinking operation of die injection moulding 200 is described analyse and observe schematic drawing.
Fig. 9 be cut off with the direction orthogonal with Fig. 8, die injection moulding 200 die sinking operation is described analyse and observe schematic drawing.
Figure 10 be the die sinking operation of die injection moulding 200 is described analyse and observe schematic drawing.
Figure 11 be cut off with the direction orthogonal with Figure 10, die injection moulding 200 die sinking operation is described analyse and observe schematic drawing.
Figure 12 (A) is the side view of container body 110 and label 150, and (B) is the side view of the state representing one-body molded label 150 on container body 110.
Figure 13 (A) is the sectional view having cut off container body 110 in short transverse, and (B) is the top view of the inner face of the bottom 119 representing container body 110.
Detailed description of the invention
Die injection moulding 200 and the injection molding forming method of the container 100 of use figure to the example as embodiments of the present invention, the container body 110 for injection mo(u)lding container 100 are described.First, the outline of Fig. 1 to container 100 is used to be described.
As shown in Figure 1 and Figure 2, container 100, for the container of the butyraceous cosmetic of filling, plastic wide-mouth.Container 100, has container body 110, cap 120 and gasket seal 130.
Container body 110, has a portion 111, neck 112 and shoulder 113.Shoulder 113 is parts that external diameter and internal diameter change from neck 112 to cylinder portion 111.On the inner peripheral surface of shoulder 113, form the back-off 114 that the internal diameter D2 from the internal diameter D1 of the opening portion 117 of neck 112 to cylinder portion 111 is changed.By formed back-off 114, can make the wall thickness T 1 of the resin of neck 112 and the wall thickness T 2 of the resin in cylinder portion 111 roughly the same.In addition, make under the state being arranged on container body 110 by cap 120, container body 110 diminishes with the step of cap 120.The cross sectional shape of neck 112 is circular, and the outer peripheral face of neck 112 is formed the pin thread 115 for installing cap 120.
On the bottom 119 of container body 110, be formed with recess 116.Recess 116 is shapes chimeric with the protuberance 122 on the top being formed in cap 120.When the container 100 that overlap is multiple, chimeric by the protuberance 122 of the recess 116 with cap 120 that make container body 110, overlapping container 100 becomes and is difficult to landing.
Cap 120, is formed with the negative thread 121 corresponding with pin thread 115 at inner peripheral surface.Gasket seal 130 is installed in inner side.
The material of gasket seal 130, can use such as based on the material of the material of rubber series, based on the material of the material of resin system.Dimensional accuracy as the end 118 of the dimensional accuracy of the opening portion 117 of the neck 112 of container body 110, particularly opening portion 117 is low, or is formed with parting line, even if then use gasket seal 130 to keep air-tightness.But, in the container 100 of the present embodiment, because use die injection moulding 200 described below to carry out shaping, so the dimensional accuracy of the opening portion 117 of neck 112 is high, in addition, because the inner peripheral surface of the neck 112 of container body 110 does not form parting line to the end 118 of opening portion 117, so the contact of gasket seal 130, cap 120 becomes even, can improve air-tightness.
As shown in figure 12, on the outer peripheral face in the cylinder portion 111 of container 100, by in-mold label shaping, the one-body molded label 150 describing ProductName, manufacturing nation, using method etc.In-molded, be widely used technology in injection mo(u)lding, blow molding.In the container 100 of the present embodiment, by using the die injection moulding 200 of following explanation to carry out container molding main body 110, can by in-mold label shaping by one-body molded for label 150 on container body 110.Label 150, by OPP(polypropylene) etc. film formed.
By label 150 one-body molded on container body 110, there is no need for the secondary operations of the decorative appearance of container body 110, the processing of such as printing, hot stamping etc., can manufacture container 100 with low cost.
The container 100 of the present embodiment, as shown in Figure 1 and Figure 2, the outer peripheral face in the cylinder portion 111 of container body 110 goes curved that is slightly expanding and that slightly heaved laterally along with from side direction shoulder 113 side, bottom 119.Therefore, the shape of label 150 as illustrated in fig. 12, and is not only rectangle, but has made the shape of the outer peripheral face along container body 110.Figure 12 A is the figure of the position of the label 150 of the short transverse representing container body 110.Label 150, from the state of Figure 12 A as Figure 12 B, one-body molded under the state that the mode of enclosing with the outer peripheral face one roughly around container body 110 is wound with.As illustrated in fig. 12, the shape of label 150, specifically, the first long limit 151 of label 150 and the second long limit 152 bend in the mode that neck 112 side to container body 110 is outstanding respectively.In addition, the first minor face 153 and the second minor face 154 of label 150 is slightly bending in the mode that the circumference to container body 110 is outstanding respectively.Therefore, as shown in Figure 12 B, at label 150 by under one-body molded state on the outer peripheral face of container body 110, first long limit 151 and the second long limit 152 configure abreast with neck 112 and bottom 119 respectively, first minor face 153 and the second minor face 154 configure mutually substantially in parallel, and the outward appearance of container 100 becomes good.
In the present embodiment, as shown in Figure 12 B, make the first minor face 153 of label 150 not overlapping with the second minor face 154, form gap 155, the remaining quantity that also this gap 155 can be used as cosmetic observes confirmation unit.Such as, form container body 110 by the resin that light transmission is high, label 150 made with the painted film of the mode of light transmission step-down.By by one-body molded for label 150 on container body 110, the first minor face 153 of label 150 and the gap 155 of the second minor face 154 become the window part with light transmission, so, this gap 155 become cosmetic remaining quantity observe confirmation unit.
Next, the die injection moulding 200 being used for injection mo(u)lding container 100 is described.Below, as shown in Fig. 3 to Figure 11, using configure fixed die 10 that side as downside, configuration is described as that side of the main body outer side mold 40 of But moving die as upside.In addition, if the direction that the first slide cores 50 is slided is left and right directions, the direction that the second slide cores 60 is slided is fore-and-aft direction.In addition, the form of die injection moulding 200, is not limited to the embodiment of following explanation.
About the means of each several part action being made die injection moulding 200 by forming machine, known means can be used, omit detailed description and diagram.
In the following description, " demoulding ", means the state that the forming surface of mould have left from formed body.In addition, " withdrawing pattern ", means and mould is passed through from the back-off of formed body, the state taken out by mould.
Fig. 3, Fig. 4, Fig. 5, represent the state of die injection moulding 200 by matched moulds.Die injection moulding 200, is formed primarily of side form 90 in fixed die 10, first sliding panel 20, second sliding panel 30, main body outer side mold 40, first slide cores 50, second slide cores 60, pellet 70, neck outer side mold 80 and neck.
As being described the outline of die injection moulding 200, then by a pair first slide cores 50 and a pair second slide cores 60 round region in configure pellet 70.Side form 90 in a pair first slide cores 50, a pair second slide cores 60 and the through necks of pellet 70.Side form 90 in neck, has first forming surface 91 of inner peripheral surface to the end 118 of opening portion 117 of the neck 112 of shaping container body 110.First slide cores 50, has the sixty percentth profile 54 of a part for the inner face of the second forming surface 51 of a part for the inner peripheral surface in the cylinder portion 111 of forming containers main body 110 and the bottom 119 of forming containers main body 110.Second slide cores 60, has the seventy percentth profile 63 of a part for the inner face of the 3rd forming surface 61 of a part for the inner peripheral surface in the cylinder portion 111 of forming containers main body 110 and the bottom 119 of forming containers main body 110.Main body outer side mold 40, has the 4th forming face 41 of the outer peripheral face of container molding main body 110.Pellet 70, has the fifty percentth profile 74 of a part for the inner face of the bottom 119 of forming containers main body 110.
In addition, pellet 70, has the first sliding surface 71 contacted with the first slide cores 50 and the second sliding surface 72 contacted with the second slide cores 60.First slide cores 50, has the 3rd sliding surface 55 contacted with the first sliding surface 71 of pellet 70 and the 4th sliding surface 56 contacted with the second slide cores 60.Second slide cores 60, has the 5th sliding surface 64 contacted with the first slide cores 50 with the second sliding surface 72 of pellet 70.
Next, the structure of die injection moulding 200 is specifically described.Fixed die 10, has the part of cross sectional shape roughly matrix.In the inside of roughly convex portions, configure the second sliding panel 30 and pellet 70.In the upside of fixed die 10, configure the first sliding panel 20.First sliding panel 20, when shifting from the state (with reference to Fig. 3, Fig. 4) by matched moulds to the state (with reference to Fig. 8 to Figure 11) of die sinking, can be relatively mobile to upside (first direction) relative to fixed die 10.In first sliding panel 20 pairs neck, side form 90 and a pair first slide cores 50 keep.
Side form 90 in neck, is fixed on the first sliding panel 20.In neck, side form 90 has the first forming surface 91.First forming surface 91, the inner peripheral surface of the neck 112 of shaping container body 110 is to the end 118 of opening portion 117.First forming surface 91, continuous in the circumference of the inner peripheral surface of neck 112.So-called " continuous in circumference ", means that the first forming surface 91 is formed by the mould of continuous print one, does not form parting line.Thus, make the dimensional accuracy from the inner peripheral surface of neck 112 to the end 118 of opening portion 117 of the container body 110 as formed body good, and make not form parting line.
First slide cores 50, has the second forming surface 51 and the sixty percentth profile 54.Second forming surface 51, a part for the circumference of the inner peripheral surface in the cylinder portion 111 of container molding main body 110, and a part for circumference with the inner peripheral surface continuous print back-off 114 of neck 112.Sixty percentth profile 54, in the inner face of the bottom 119 of forming containers main body 110, clip the part part be in opposite directions shaped by the fifty percentth profile 74 of pellet 70.
First slide cores 50 has the first support 52.The inner side of side form 90 in the through neck of first support 52.The end of the first support 52, to make the radial direction of the first slide cores 50 first forming surface 91 of side form 90 in neck, namely as the mode radially slided freely of the neck 112 of the container body 110 of formed body, is clipped by side form 90 in the first sliding panel 20 and neck.
First slide cores 50, has the 3rd sliding surface 55 contacted with the first sliding surface 71 of pellet 70 and the 4th sliding surface 56 contacted with the second slide cores 60.First slide cores 50, form as follows, namely, when shifting from the state (with reference to Fig. 3 to Fig. 5) by matched moulds to the state (with reference to Fig. 8, Fig. 9) of die sinking, by relatively mobile to upside (first direction) relative to pellet 70, becoming can along the first sliding surface 71 of pellet 70 and the second slide cores 60 to the radial direction medial movement of side form in neck 90.
In neck, the upside of side form 90 configures neck outer side mold 80.Neck outer side mold 80, the outer peripheral face of the neck 112 of container molding main body 110 and pin thread 115.Neck outer side mold 80, when die sinking, as Fig. 4 and move in front-rear direction as shown in Figure 7.In addition, after the die sinking having carried out neck outer side mold 80, omit the diagram of neck outer side mold 80 at Fig. 6, Fig. 8 and Figure 10.
Second sliding panel 30, when shifting from the state (with reference to Fig. 3, Fig. 4) by matched moulds to the state (with reference to Fig. 8 to Figure 11) of die sinking, can be relatively mobile to upside (first direction) relative to fixed die 10.Second sliding panel 30, keeps a pair second slide cores 60.
Second slide cores 60, has the 3rd forming surface 61 and the seventy percentth profile 63.3rd forming surface 61, a part for the circumference of the inner peripheral surface in the cylinder portion 111 of container molding main body 110, and a part for circumference with the inner peripheral surface continuous print back-off 114 of neck 112.Seventy percentth profile 63, be used for forming containers main body 110 bottom 119 inner face in, part beyond the part that is shaped by the fifty percentth profile 74 of pellet 70 and the part be shaped by the sixty percentth profile 54 of the first slide cores 50.
Second slide cores 60 has the second support 62.Second support 62, through in the hole 92 be formed obliquely in neck on side form 90.Second support 62, can retreat along hole 92.The end of the second support 62, with the radial direction of the first forming surface 91 of side form in neck 90, namely as the mode radially slided freely of the neck 112 of the container body 110 of formed body, is maintained on the second sliding panel 30.
Second slide cores 60, has the 5th sliding surface 64 contacted with the second sliding surface 72 and first slide cores 50 of pellet 70.Second slide cores 60, form as follows, namely, when the state (with reference to Figure 10, Figure 11) from the state (from Fig. 3 to Fig. 5) by matched moulds to die sinking shifts, relatively moved to upside (first direction) relative to side form in neck 90 and pellet 70 by the second sliding panel 30, becoming can along the hole 92 of side form in neck 90 to the radial direction medial movement of side form in neck 90.In addition, now, the second slide cores 60 contacts with the first slide cores 50, while relatively mobile to upside (first direction) relative to side form 90 in the first slide cores 50, pellet 70 and neck.
Pellet 70, is fixed on the inside of fixed die 10.Pellet 70, side form 90 in through second sliding panel 30 and neck.Pellet 70, be configured in by a pair first slide cores 50 and a pair second slide cores 60 round region in.On the top of pellet 70, be formed with the fifty percentth profile 74, first sliding surface 71 and the second sliding surface 72.
Fifty percentth profile 74 is general square shape, for the central portion of the inner face of the bottom 119 of container molding main body 110.First sliding surface 71, with a pair first slide cores 50 in opposite directions, contact with the first slide cores 50.Second sliding surface 72, with a pair second slide cores 60 in opposite directions, contact with the second slide cores 60.On the first sliding surface 71, the ridge 73 of Formation cross-section T-shaped.Ridge 73, and is formed in groove 53 in the first slide cores 50, cross section T-shaped and engages.Engaged with ridge 73 by groove 53, the first slide cores 50 can along the first sliding surface 71 of pellet 70 to the radial direction medial movement of side form in neck 90.
In the upside of the first sliding panel 20, configure main body outer side mold 40.Main body outer side mold 40 has the 4th forming face 41.4th forming face 41, for the outer peripheral face in the cylinder portion 111 of container molding main body 110.Main body outer side mold 40 is provided with running channel portion 42, and running channel portion 42 for injecting the synthetic resin melted in die cavity C.Main body outer side mold 40, in order to be adsorbed on by label in the 4th forming face 41 when carrying out in-mold label shaping, the 4th forming face 41 is provided with the suction hole (not shown) of multiple absorption.
Next, the action of the injection mo(u)lding undertaken by die injection moulding 200 is described.Fig. 3, Fig. 4, represent state die injection moulding 200 matched moulds being defined die cavity C.Die cavity C, is made up of side form 90 in main body outer side mold 40, first slide cores 50, second slide cores 60, pellet 70, neck outer side mold 80 and neck.When carrying out in-molded, with the mode Winding tag around the first slide cores 50 and the second slide cores 60 before matched moulds.After by die injection moulding 200 matched moulds, by the suction hole (not shown) of the absorption be formed on main body outer side mold 40, label is adsorbed in the 4th forming face 41.In this case, in die cavity C, the synthetic resin melted is injected from running channel portion 42.After injected synthetic resin in die cavity C, shift to die sinking operation under the state at container body 110 cooling curing as formed body.
Next, the die sinking operation of die injection moulding 200 is described.First, as shown in Figure 6, Figure 7, main body outer side mold 40 is moved upward, and neck outer side mold 80 moves in front-rear direction.Thus, main body outer side mold 40 is by the outer peripheral face demoulding in the cylinder portion 111 from the container body 110 as formed body.In addition, neck outer side mold 80, by the outer peripheral face demoulding of the neck 112 from the container body 110 as formed body.
Then, as shown in Figure 8, Figure 9, relative to fixed die 10, the first sliding panel 20 and the second sliding panel 30 are relatively mobile to upside (first direction).Because pellet 70 is fixed on fixed die 10, so, a pair first slide cores 50, relatively mobile to upside (first direction) relative to pellet 70 with side form in neck 90.First slide cores 50, as relatively mobile to upside (first direction) relative to pellet 70, then along the first sliding surface 71 of pellet 70 to the radial direction medial movement of side form in neck 90.Then, second forming surface 51 of the first slide cores 50, move to the first forming surface 91 than side form in neck 90 more by the radially inner side of neck 112 of container body 110, move to than the inner peripheral surface by the shaping neck 112 of the first forming surface 91 of side form in neck 90 more by inside radial direction.Now, the first slide cores 50 makes the 4th sliding surface 56 contact with the second slide cores 60 to move.
Thus, the second forming surface 51 of the first slide cores 50, by the inner peripheral surface in the cylinder portion 111 from the container body 110 as formed body and back-off 114 demoulding.In this case, the first slide cores 50 becomes opening portion 117 withdrawing pattern of the neck 112 by the container body 110 as formed body.
Then, as shown in Figure 10, Figure 11, relatively move to upside (first direction) further relative to fixed die 10 and the first sliding panel 20, second sliding panel 30.Second slide cores 60, relatively move to upside (first direction) further relative to side form in neck 90, first slide cores 50 and pellet 70, further, the second support 62 of the second slide cores 60 is relative to side form in neck 90 moving axially to the second support 62.So, 3rd forming surface 61 of the second slide cores 60, move to the first forming surface 91 than side form in neck 90 more by the radially inner side of neck 112 of container body 110, move to than the inner peripheral surface by the shaping neck 112 of the first forming surface 91 of side form in neck 90 more by inside radial direction.Now, the second slide cores 60, makes the 5th sliding surface 64 contact with the first slide cores 50 and moves.
Thus, the second slide cores 60, by the inner peripheral surface in the cylinder portion 111 from the container body 110 as formed body and back-off 114 demoulding.In this case, the second slide cores 60 becomes opening portion 117 withdrawing pattern of the neck 112 by the container body 110 as formed body.
In addition, second slide cores 60, when by from container body 110 demoulding as formed body time, relatively mobile to upside (first direction) relative to side form 90 in the first slide cores 50, pellet 70 and neck, so, as the container body 110 of formed body in the mode ejected by the second slide cores 60 by withdrawing pattern.That is, even if do not arrange ejecting mechanism separately, also withdrawing pattern can be carried out from side form 90 in the first slide cores 50, pellet 70 and neck to the container body 110 as formed body.After this, as the container body 110 of formed body by not shown withdrawing device from the second slide cores 60 withdrawing pattern, the die sinking operation of die injection moulding 200 terminates.
The container 100 manufactured by above-mentioned die injection moulding 200, forms the multiple parting lines produced by the forming surface being divided into multiple die injection mouldings 200 on the inner peripheral surface continuous print back-off 114 of neck 112 at the inner peripheral surface in the inner face of the bottom 119 of container body 110, the inner peripheral surface in the cylinder portion 111 of container body 110 and the cylinder portion 111 of container body 110.On the other hand, the inner peripheral surface of the neck 112 of container body 110, to the end 118 of opening portion 117, does not form parting line.
As being more specifically described, then at the inner face of the bottom 119 of container body 110, form the first parting line PL1 produced by pellet 70 and the first slide cores 50, the second parting line PL2 produced by pellet 70 and the second slide cores 60, and the 3rd parting line PL3 produced by the first slide cores 50 and the second slide cores 60.Inner peripheral surface in the cylinder portion 111 of container body 110 and with on the inner peripheral surface continuous print back-off 114 of neck 112, forms the tetrad segregation types line PL4 produced by the first slide cores 50 and the second slide cores 60.The inner peripheral surface of the neck 112 of container body 110 to the end 118 of opening portion 117, because of shaping by the first forming surface 91 of side form in neck 90, so parting line is not formed.
According to the container 100 of the present embodiment be explained above, die injection moulding 200 and injection molding forming method, there is following such effect.
The inner peripheral surface of the neck 112 of container body 110 is to the end 118 of opening portion 117, because of shaping by having side form 90 in the neck of circumferential continuous print first forming surface 91, so, can precision well the shaping inner peripheral surface from neck 112 to the end 118 of opening portion 117.In addition, because do not form parting line in the end 118 of opening portion 117, so, gasket seal 130 can be made to contact equably, can air-tightness be improved.
The inner peripheral surface in the cylinder portion 111 of container body 110 and the inner peripheral surface continuous print back-off 114 with neck 112, by the first slide cores 50 and the second slide cores 60 shaping.First slide cores 50 and the second slide cores 60, because being moved under than side form in neck 90 state more in the inner part by withdrawing pattern, so, pressure withdrawing pattern is not become during withdrawing pattern, because do not make the opening portion 117 of neck 112 be out of shape, so, can precision well the shaping inner peripheral surface from neck 112 to the end 118 of opening portion 117.
A pair first slide cores 50, when carrying out moving so that when the second forming surface 51 is in the radially inner side of neck 112 of container body 110 compared with the first forming surface 91 of side form in neck 90, the 4th sliding surface 56 being contacted with a pair second slide cores 60 and moves.A pair second slide cores 60, when carrying out moving so that when the 3rd forming surface 61 is in the radially inner side of neck 112 of container body 110 compared with the first forming surface 91 of side form in neck 90, the 5th sliding surface 64 being contacted with a pair first slide cores 50 and moves.By such movement, can make in the operation of die sinking the first slide cores 50, second slide cores 60 and pellet 70 compact, so, even if the degree of depth not increasing back-off 114 also can carry out withdrawing pattern.
Above, embodiments of the present invention are illustrated, but the invention is not restricted to above-mentioned embodiment, can various change be carried out.
Description of reference numerals:
100 containers
200 die injection mouldings
10 fixed dies
20 first sliding panels
30 second sliding panels
40 main body outer side molds
41 the 4th forming faces
42 running channel portions
50 first slide cores
51 second forming surface
52 first supports
53 grooves
54 the sixty percentth profiles
55 the 3rd sliding surfaces
56 the 4th sliding surfaces
60 second slide cores
61 the 3rd forming surface
62 second supports
63 the seventy percentth profiles
64 the 5th sliding surfaces
70 pellets
71 first sliding surfaces
72 second sliding surfaces
73 ridges
74 the fifty percentth profiles
80 neck outer side molds
Side form in 90 necks
91 first forming surface
92 holes
C die cavity
110 container bodies
111 portions
112 necks
113 shoulders
114 back-offs
115 pin threads
116 recesses
117 opening portions
118 ends
Bottom 119
120 caps
121 negative threads
122 protuberances
130 gasket seals
150 labels
151 first long limits
152 second long limits
153 first minor faces
154 second minor faces
155 gaps
PL1 first parting line
PL2 second parting line
PL3 the 3rd parting line
PL4 tetrad segregation types line

Claims (9)

1. a die injection moulding for container is the die injection moulding having the container of back-off in the inner side of container body; It is characterized in that: possess side form in neck, a pair first slide cores, a pair second slide cores and pellets;
Side form in this neck, have for the neck of shaping container body inner peripheral surface to opening portion end, in circumferential continuous print first forming surface;
These a pair first slide cores, side form in through above-mentioned neck, and, there is the second forming surface, this second forming surface is used for the part of circumference for the inner peripheral surface in the cylinder portion of shaping said vesse main body, and from the inner peripheral surface in the cylinder portion of said vesse main body to a part for the circumference of the inner peripheral surface continuous print back-off of above-mentioned neck;
These a pair second slide cores, side form in through above-mentioned neck, and, there is the 3rd forming surface, 3rd forming surface is used for the part of circumference for the inner peripheral surface in the cylinder portion of shaping said vesse main body, and from the inner peripheral surface in the cylinder portion of said vesse main body to a part for the circumference of the inner peripheral surface continuous print back-off of above-mentioned neck;
This pellet, side form in through above-mentioned neck, and, be configured in by above-mentioned a pair first slide cores and above-mentioned a pair second slide cores round region in,
Relatively moved to first direction relative to above-mentioned pellet with side form in above-mentioned neck by above-mentioned a pair first slide cores, thus make above-mentioned second forming surface move to the radially inner side more leaning on the neck of above-mentioned container body than above-mentioned first forming surface of side form in above-mentioned neck;
Then, by above-mentioned a pair second slide cores relative to side form, above-mentioned first slide cores and above-mentioned pellet in above-mentioned neck relatively to the movement further of above-mentioned first direction, thus make above-mentioned 3rd forming surface move to above-mentioned first forming surface than side form in above-mentioned neck more by the radially inner side of neck of above-mentioned container body.
2. the die injection moulding of container according to claim 1, is characterized in that: above-mentioned first slide cores possesses the first support of side form in through above-mentioned neck, and above-mentioned second slide cores possesses the second support of side form in through above-mentioned neck; Further, above-mentioned injection mould also possesses fixed die, the first sliding panel and the second sliding panel;
This fixed die is fixed above-mentioned pellet;
This first sliding panel, can move to above-mentioned first direction relative to above-mentioned fixed die, keep side form in above-mentioned neck, further, in above-mentioned neck between side form to make above-mentioned first support of above-mentioned a pair first slide cores keep above-mentioned first support of above-mentioned a pair first slide cores along the mode radially slided freely of the neck of said vesse main body;
This second sliding panel, can move to above-mentioned first direction relative to above-mentioned fixed die and above-mentioned pellet, above-mentioned second support of above-mentioned a pair second slide cores is kept along the mode radially slided freely of the neck of said vesse main body to make above-mentioned second support of above-mentioned a pair second slide cores
Moved to above-mentioned first direction relative to above-mentioned fixed die by above-mentioned first sliding panel and above-mentioned second sliding panel, thus side form in above-mentioned a pair first slide cores and above-mentioned neck is relatively moved to first direction relative to above-mentioned pellet, and the radially inner side making above-mentioned first support of above-mentioned a pair first slide cores upwards state the neck of container body relative to side form in above-mentioned neck moves, above-mentioned second forming surface of above-mentioned a pair first slide cores is made to move to the radially inner side more leaning on the neck of above-mentioned container body than above-mentioned first forming surface of side form in above-mentioned neck,
Then, by above-mentioned second sliding panel relative to above-mentioned fixed die and above-mentioned first sliding panel to the movement further of above-mentioned first direction, thus make above-mentioned a pair second slide cores relative to side form in above-mentioned neck, above-mentioned first slide cores and above-mentioned pellet are relatively to the movement further of above-mentioned first direction, and, above-mentioned second support of above-mentioned a pair second slide cores is made upwards to state moving axially of the second support relative to side form in above-mentioned neck, above-mentioned 3rd forming surface of above-mentioned a pair second slide cores is made to move to the radially inner side more leaning on the neck of above-mentioned container body than above-mentioned first forming surface of side form in above-mentioned neck.
3. the die injection moulding of container according to claim 2, it is characterized in that: above-mentioned pellet, also there is the fifty percentth profile, the first sliding surface and the second sliding surface, fifty percentth profile is general square shape, for the central portion of the inner face of the bottom of shaping said vesse main body, this first sliding surface contacts with above-mentioned first slide cores, and this second sliding surface contacts with above-mentioned second slide cores;
Above-mentioned a pair first slide cores, also there is the sixty percentth profile, the 3rd sliding surface and the 4th sliding surface, sixty percentth profile in the inner face of the bottom of the said vesse main body that is shaped, clip by the shaping part part in opposite directions of above-mentioned fifty percentth profile, 3rd sliding surface contacts with the first sliding surface of above-mentioned pellet, and the 4th sliding surface contacts with above-mentioned second slide cores;
Above-mentioned a pair second slide cores, also there is the seventy percentth profile and the 5th sliding surface, seventy percentth profile in the inner face of the bottom of the said vesse main body that is shaped, by the shaping part of above-mentioned fifty percentth profile and by the part beyond the shaping part of above-mentioned sixty percentth profile, the second sliding surface and above-mentioned first slide cores of the 5th sliding surface and above-mentioned pellet contact;
Above-mentioned a pair first slide cores, when carrying out moving so that when making above-mentioned second forming surface be in the radially inner side of the neck of said vesse main body compared with above-mentioned first forming surface of side form in above-mentioned neck, above-mentioned 4th sliding surface being contacted with above-mentioned a pair second slide cores and moves;
Above-mentioned a pair second slide cores, when carrying out moving so that when making above-mentioned 3rd forming surface be in the radially inner side of the neck of said vesse main body compared with above-mentioned first forming surface of side form in above-mentioned neck, above-mentioned 5th sliding surface being contacted with above-mentioned a pair first slide cores and moves.
4. a container is the container having back-off in the inner side of container body; To it is characterized in that: the inner peripheral surface in the cylinder portion of the inner face in the bottom of said vesse main body, said vesse main body and from the inner peripheral surface in the cylinder portion of said vesse main body to the inner peripheral surface continuous print back-off of above-mentioned neck that there are the multiple parting lines produced by the forming surface being divided into multiple die injection mouldings;
Above-mentioned parting line, by a pair first slide cores, a pair second slide cores and be configured in by above-mentioned a pair first slide cores and above-mentioned a pair second slide cores round region in pellet formed;
Parting line is not had from the inner peripheral surface of the neck of said vesse main body to the end of opening portion.
5. a container, has back-off in the inner side of container body;
On the inner face of the bottom of said vesse main body, there are the multiple parting lines produced by the forming surface being divided into multiple die injection mouldings;
Parting line is not had from the inner peripheral surface of the neck of said vesse main body to the end of opening portion;
It is characterized in that of this container:
The die injection moulding of shaping said vesse main body, has the fifty percentth profile, the sixty percentth profile and the seventy percentth profile; Fifty percentth profile is general square shape, for the central portion of the inner face of the bottom of shaping said vesse main body, sixty percentth profile, for in the inner face of the bottom of the said vesse main body that is shaped, clip by the shaping part part in opposite directions of above-mentioned fifty percentth profile, seventy percentth profile, for in the inner face of the bottom of the said vesse main body that is shaped, by the shaping part of above-mentioned fifty percentth profile and by the part beyond the shaping part of above-mentioned sixty percentth profile
The parting line of the inner face of the bottom of said vesse main body, there is the first parting line produced by above-mentioned fifty percentth profile and above-mentioned sixty percentth profile, the second parting line produced by above-mentioned fifty percentth profile and above-mentioned seventy percentth profile, and the 3rd parting line produced by above-mentioned sixty percentth profile and above-mentioned seventy percentth profile.
6. a container, has back-off in the inner side of container body;
The inner peripheral surface in the cylinder portion of the inner face in the bottom of said vesse main body, said vesse main body and from the inner peripheral surface in the cylinder portion of said vesse main body to the inner peripheral surface continuous print back-off of above-mentioned neck, has the multiple parting lines produced by the forming surface being divided into multiple die injection mouldings;
Parting line is not had from the inner peripheral surface of the neck of said vesse main body to the end of opening portion;
It is characterized in that of this container:
The die injection moulding of shaping said vesse main body, possesses side form in neck, pellet, a pair first slide cores and a pair second slide cores;
Side form in this neck, have for the shaping neck from said vesse main body inner peripheral surface to opening portion end, in circumferential continuous print first forming surface;
This pellet, have the central portion of the inner face of the bottom for shaping said vesse main body, the fifty percentth profile of general square shape;
These a pair first slide cores, there is the sixty percentth profile and the second forming surface, sixty percentth profile in the inner face of the bottom of the said vesse main body that is shaped, clip by the shaping part part in opposite directions of above-mentioned fifty percentth profile, this second forming surface be used for shaping from by the shaping partial continuous of above-mentioned sixty percentth profile, the part of the inner peripheral surface in the cylinder portion of said vesse main body, and from the inner peripheral surface in the cylinder portion of said vesse main body to a part for the inner peripheral surface continuous print back-off of above-mentioned neck;
These a pair second slide cores, there is the seventy percentth profile and the 3rd forming surface, seventy percentth profile in the inner face of the bottom of the said vesse main body that is shaped, by the shaping part of above-mentioned fifty percentth profile and by the part beyond the shaping part of above-mentioned sixty percentth profile, 3rd forming surface be used for shaping from by the shaping partial continuous of above-mentioned seventy percentth profile, the part of the inner peripheral surface in the cylinder portion of said vesse main body, and from the inner peripheral surface in the cylinder portion of said vesse main body to a part for the inner peripheral surface continuous print back-off of above-mentioned neck
On the inner face of the bottom of said vesse main body, the 3rd parting line that there is the first parting line produced by above-mentioned pellet and above-mentioned first slide cores, the second parting line produced by above-mentioned pellet and above-mentioned second slide cores and produced by above-mentioned first slide cores and above-mentioned second slide cores;
On the inner peripheral surface continuous print back-off of the inner peripheral surface in the cylinder portion with said vesse main body and above-mentioned neck, there is the tetrad segregation types line produced by above-mentioned first slide cores and above-mentioned second slide cores.
7. a container, is characterized in that: this container uses the die injection moulding of the container described in any one in claim 1 to 3 to carry out shaping.
8. the container according to any one in claim 4 to 7, is characterized in that:
The label that outer peripheral face roughly around the cylinder portion of said vesse main body encloses is carried out in-molded;
The both ends of above-mentioned label are not overlapping, and this part is observed confirmation unit as the remaining quantity of content.
9. an injection molding forming method for container, is characterized in that: the method be the use of the die injection moulding of the container described in any one in claims 1 to 3, the injection molding forming method of container; Above-mentioned die injection moulding also comprises main body outer side mold, and this main body outside mould has the 4th forming surface of the outer peripheral face in the cylinder portion for shaping said vesse main body;
The method be included in before type intracavitary administration synthetic resin with the operation of the mode label allocation around the second forming surface of above-mentioned first slide cores and the 3rd forming surface of the second slide cores.
CN201310632166.0A 2013-03-29 2013-12-02 The injection molding forming method of container, container and the die injection moulding of container Expired - Fee Related CN104070638B (en)

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