CN102069562A - Sealed cap provided with guard ring and injection molding tool and method for producing the same - Google Patents
Sealed cap provided with guard ring and injection molding tool and method for producing the same Download PDFInfo
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- CN102069562A CN102069562A CN2010101050531A CN201010105053A CN102069562A CN 102069562 A CN102069562 A CN 102069562A CN 2010101050531 A CN2010101050531 A CN 2010101050531A CN 201010105053 A CN201010105053 A CN 201010105053A CN 102069562 A CN102069562 A CN 102069562A
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- Prior art keywords
- closing cover
- injection moulding
- main body
- moulding tool
- core members
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Classifications
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- 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
- B29C45/4407—Removing or ejecting moulded articles for undercut articles by flexible movement of undercut portions of the articles
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- 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
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- 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
- B29L2031/565—Stoppers or lids for bottles, jars, or the like, e.g. closures for containers
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention relates to a sealed cap provided with a guard ring and an injection molding tool and method for producing the same. According to the injection molding tool used for producing a sealed cap, in the production of the sealed cup, a guard ring is formed on the sealed cap main body into one piece via one ore more holding connecting sheets. The injection molding tool firstly comprises an external forming piece used for forming an external contour of the sealed cap and a core piece used fro forming the internal of the internal contour of the sealed cap. The core piece is provided with sections used for forming the internal contour of the sealed cap main body and sections used for forming the internal contour of the guard ring, in a transition region between the sections forming the sealed cap main body and the sections forming the guard rings, the core piece is provided with one or more hollow forming parts used for forming one ore more holding connecting sheets. According to the injection molding tool in the invention comprising at least one sliding piece provided with a receiving surface, the sliding piece can slide to one or more hollow forming parts via the receiving surface.
Description
Technical field
The present invention relates to a kind of injection moulding tool, be used for producing the closing cover of the relieving ring (Garantiering) that has moulding integratedly.In addition, the present invention relates to a kind ofly be used for producing the method for such closing cover and relate to this closing cover.
Background technology
(for example by DE 42 07 996 C2, WO 93/00270 A1, DE 36 22108 A1 and DE 42 14 151 A1) are known by prior art: construct the default drawing crack line (Sollrei β linie) that is used for relieving ring by cutting process on closing cover.The shortcoming of this settling mode is, needs other operation after the casting mold of closing cover for this reason.
Known by WO 94/14672 A1: by additional operation with relieving ring at the situation compacted under of heat to closing cover.
By prior art, for example known equally: that the synthetic material ring is arranged on the closing cover that is made of metal as relieving ring by DE 32 27 510 A1, DE 32 06 245 A1 and DE 8,220 978 U1.The high cost of synthetic material ring ground structure, and have lower member, this lower member links to each other with upper-part by keeping contact pin.Compare with upper-part, this lower member has littler diameter and has default drawing crack line.
In addition, by prior art, for example known: as closing cover to be carried out in the framework of injection moulding, on closing cover, be configured with the default drawing crack line that is used for relieving ring by DE 690 30 586 T2, DE 196 13 364 C1, DE 40 16 350 C2, CH 669 556 A5 and FR 2 426 617 A1.At this, between the end face of the end face of relieving ring and closing cover main body, be configured with maintenance contact pin.Keep contact pin moulding, outside profiled member to have corresponding hollow forming portion in order to make, just as especially the hollow forming portion as shown in Fig. 7 of CH 669 556 A5.The shortcoming of this settling mode is: the closing cover that casting mold forms can only be with the spending that increases from being used for keeping the hollow forming portion of contact pin to take out at default drawing crack line place.For described content is simplified, the known sliding part that is used for injection moulding tool, this sliding part have the hollow forming portion that is used to keep contact pin, wherein, this hollow forming portion is orientated in the following way, that is, can sliding part be removed from the closing cover that casting mold forms by simple slippage.But this settling mode needs the hollow forming portion of high cost ground structure.
Summary of the invention
With the prior art is starting point, and task of the present invention is, the closing cover that has relieving ring is provided, and the default drawing crack line of closing cover can hang down cost ground and produce.For this reason, also the injection moulding tool and the method that are fit to that is used for producing closing cover described.
Above-mentioned task by be used for being used to producing closing cover, solved according to the injection moulding tool of claims 1.In addition, this task by be used for producing closing cover, solved according to the method for appended claim 9 arranged side by side and by closing cover according to appended claim 10 arranged side by side.
Injection moulding tool according to the present invention is used to produce closing cover, and in this closing cover, relieving ring is molded on this closing cover main body integratedly.Disregarding under the situation of relieving ring, the closing cover main body constitutes complete closing cover.But relieving ring is molded on the closing cover main body integratedly by the maintenance contact pin of one or more drawing cracks.But the maintenance contact pin of these one or more drawing cracks constitutes default drawing crack line, and is configured on the lower limb of closing cover main body, and wherein, this edge is not subject to the edge bottom of closing cover main body; For example have when being used for the outstanding ring of chimeric closing cover main body when the closing cover main body., keep contact pin just can form by the endless belt as long as but the maintenance contact pin of relieving ring by unique drawing crack is molded on the closing cover main body integratedly.
Injection moulding tool at first comprises the outside profiled member of the exterior contour that is used for forming closing cover.Outside profiled member limits the outer surface of closing cover main body and the outer surface of relieving ring to the full extent, and should can partly or entirely form by sliding part by the outside profiled member.In addition, injection moulding tool according to the present invention comprises the internal core spare that is used for forming the closing cover in-profile.Core members has the section of the in-profile moulding that is used for making the closing cover main body.In addition, core members has the section of the in-profile moulding that is used for making relieving ring.At the section that makes the moulding of closing cover main body and make in the transitional region between the section of relieving ring moulding, core members has the one or more hollow forming portion that is used for making one or more maintenance contact pin moulding.This one or more hollow forming portion is the one or more concave structures in the surface of core members, and the structure of this spill limits at least one basic part of the shape of the outside of one or more maintenance contact pin.In addition, injection moulding tool according to the present invention comprises that at least one has the sliding part that holds face, and holding face by means of this can be with the sliding part slippage to one or more hollow forming portion.Therefore, one or more sliding parts can with its hold the face slippage on core members or slippage near core members.Hold face moulding in the following way, that is, this holds face and can cooperate accurately slippage at least one section of the periphery in transition zone from the outside, and at this, or touches the periphery of core members, or keeps apart from the default very little spacing of core members.At this, it is hollow being used for making the one or more hollow forming portion of one or more maintenance contact pin moulding to keep.Hold face and form the termination portion of one or more hollow forming portion, this termination portion defines those hollow forming portions on its radially external side of core members.One or more sliding parts, for example two or four sliding parts separate closing cover main body to be formed and relieving ring to be formed, thus the space between the upper surface of the lower surface of closing cover main body and relieving ring keeps not having material.In contrast, one or more maintenance contact pin are constructed in the inner space of closing cover.Simultaneously sliding part can also be partly or is entirely constituted outside profiled member.
With respect to prior art, injection moulding tool according to the present invention has following advantage: one or more sliding parts do not have the labyrinth that is used for making maintenance contact pin moulding.As holding face, sliding part can have smooth surface, and this surface has the cross section of hollow arc.
One or more sliding parts preferably have the face of holding, and this holds face and all surrounds the transitional region of core members with it on whole periphery.The closing cover main body that assurance will be to be made is separated fully with relieving ring thus, thereby relieving ring is only linked to each other with the closing cover main body by the maintenance contact pin of core members moulding by one or more treating.
Core members preferably has the surface of circular cylindrical shell shell-like on transitional region, be suitable for having the closing cover of circular cross section such as the surface of this circular cylindrical shell shell-like, is particularly suitable for rotating closure member.
In first preferred implementation, core members has just what a hollow forming portion.The cannelure that this hollow forming portion is extended to by the periphery along core members in the transitional region of core members forms.
In second preferred implementation, core members has a plurality of being used for makes the hollow forming portion that keeps the contact pin moulding, and in the transition zone, for example moulding is in the surface of circular cylindrical shell shell-like as the groove moulding in these hollow forming portions.At this, vertically preferably being orientated of groove in the mode of the axis that is parallel to core members.
For the surface of the circular cylindrical shell shell-like of the transitional region that can hold core members, one or more sliding parts hold the cross section that face preferably has the open circles arc respectively.The equal diameters on the surface of the circular cylindrical shell shell-like of the diameter of the cross section of open circles arc and core members, thus the transitional region of core members can be held by the face form fit ground that holds of one or more sliding parts.At this, do not including under the situation of groove, transitional region is touched by the face that holds of one or more sliding parts on whole periphery.Hold face and hide groove, thereby the hollow forming portion of structure tubulose is used for making maintenance contact pin moulding.
Preferably have two sliding parts according to injection moulding tool of the present invention, these two sliding parts hold the cross section that face has hollow semicircular arc respectively.Two sliding parts can hold half periphery of the transitional region of core members respectively, and move on on the core members from two opposed sideslips with hanging down cost, are used for making according to injection moulding tool according to the present invention and prepare the casting closing cover.
Hold face and preferably have the hollow forming portion of cylindrical valve jacket ball cap (Zylindermantelkalotte) respectively, so that can plane formula ground hold the surface of circular cylindrical shell shell-like of the transitional region of core members.
Be used for making and keep the groove of contact pin moulding can have profile arbitrarily.Preferably, groove has semi-cylindrical hollow forming portion respectively, and thus, maintenance contact pin to be formed can be shifted out from groove easily.In other preferred implementation, groove has trapezoidal cross section respectively, wherein, and compares towards the cross section at the transition part place of the section that makes the relieving ring moulding, and is littler towards the cross section at the transition part place of the section that makes the moulding of closing cover main body.For example, cross section can be constructed in the following way, promptly, cross section is diminishing on the direction of the transition part of the section that makes the moulding of closing cover main body continuously, for example in the following way, that is, the bottom side of the trapezoidal shape of cross section shortens being linearly on the direction of the transition part of the section that makes the moulding of closing cover main body.Guarantee in this embodiment: the maintenance contact pin to be formed of the closing cover that will produce by means of injection moulding tool when opening closing cover for the first time in transition part place drawing crack towards the closing cover main body, thereby keep contact pin to be retained on the relieving ring, keep contact pin to have littler damage risk like this.Be different from settling mode, in this settling mode,, can also realize long maintenance contact pin, so that for example guarantee very little drawing crack power by means of settling mode according to the present invention by being cut into default drawing crack line from prior art.
The surface of the circular cylindrical shell shell-like of the transitional region of core members preferably is not limited to transitional region.In this case, on the surface that on the direction of the section that makes the moulding of closing cover main body, is connected to the circular cylindrical shell shell-like of same diameter.In the same way, on the surface of the circular cylindrical shell shell-like that on the direction of the section that makes the relieving ring moulding, is connected to same diameter.But such embodiment has guaranteed the release property that is easy to of closing cover to be made.In addition, guarantee that one or more maintenance contact pin to be formed intactly are among the inside of closing cover.
The method according to this invention is used to produce closing cover, and this closing cover has relieving ring, but the maintenance contact pin of this relieving ring by one or more drawing cracks is molded on the lower limb of closing cover main body integratedly.In order to carry out this method, at first for example provide aforesaid according to injection moulding tool of the present invention.Prepare to be used for the injection moulding tool of injection moulding process for this reason; For example can be on the transitional region of core members with one or more sliding part slippages.Can load injection moulding tool with the synthetic material of liquid state, for example the synthetic material with the liquefaction after the heating loads, and by means of the pressure that increases this synthetic material is imported in the injection moulding tool.And then, the synthetic material sclerosis, for example sclerosis in the following way promptly, makes the synthetic material cooling.The synthetic material that has hardened constitutes closing cover to be produced in injection moulding tool inside.Injection moulding tool can be opened then, and take out closing cover.
The special advantage of the method according to this invention is: the structure of the production of closing cover, especially default drawing crack line does not need other operation, for example cutting process.
Closing cover according to the present invention has relieving ring, but the maintenance contact pin of this relieving ring by one or more drawing cracks is molded on the lower limb of closing cover main body integratedly.Closing cover according to the present invention is good in the following way, that is, for example this closing cover can be produced by aforesaid the method according to this invention.Therefore, this closing cover has gap freely between the upper surface of the lower surface of closing cover main body and relieving ring after producing, and this is not worked in the closing cover blank that casting mold forms by cutting or similar processing mode in the gap freely.But this end face has as lower surface, just as existing surface in injection-molded finished.Simultaneously, one or more maintenance contact pin are arranged in the inside of closing cover, and do not protrude into or just protrude into a little in the space between the end face of the end face of closing cover main body and relieving ring and go.
Description of drawings
With reference to the accompanying drawings, by to drawing additional advantages of the present invention, details and improvement project according to the preferred implementation of injection moulding tool of the present invention and according to the following description of a plurality of preferential embodiments of closing cover of the present invention.Wherein:
Fig. 1 illustrates the profile of preferred implementation under open mode according to injection moulding tool of the present invention;
Fig. 2 is illustrated in the injection moulding tool shown in Fig. 1 under the closure state;
The view that Fig. 3 cuts open with part illustrates the injection moulding tool shown in Fig. 2;
Fig. 4 illustrates the perspective view of the internal structure of the injection moulding tool shown in Fig. 1;
Fig. 5 illustrates the other profile of the injection moulding tool shown in Fig. 1;
Fig. 6 illustrates first preferred implementation according to closing cover of the present invention with profile;
Fig. 7 illustrates second preferred implementation according to closing cover of the present invention with profile; And
Fig. 8 illustrates the 3rd preferred implementation according to closing cover of the present invention with profile.
The specific embodiment
Fig. 1 illustrates the profile of preferred implementation under open mode according to injection moulding tool of the present invention that is used for producing closing cover.At first comprise tool framework 01 according to injection moulding tool of the present invention, first and foremost, outside profiled member 02 is enclosed in this tool framework 01.Outside profiled member 02 is used to make the exterior contour moulding of closing cover to be produced.Shown in diagram in can find out the columniform hollow forming portion 03 that is used for making the moulding of closing cover main body.Columniform hollow forming portion 03 has the moulding portion 04 that is used for forming grasping face on the surface of closing cover to be produced.
In addition, injection moulding tool comprises the internal core spare 06 of the in-profile that is used for forming closing cover to be produced.Internal core spare 06 has columniform shape basically, and first and foremost has the structure (shown in Figure 5) of the thread forming that is used for making closing cover to be produced.
In as lower plane, in this plane, can be configured with the default drawing crack line of closing cover according to cross sectional arrangement shown in the injection moulding tool of the present invention.In this plane, injection moulding tool according to the present invention has two sliding parts 07, and described sliding part 07 is movably disposed within tool framework 01 inside.These two sliding parts 07 especially can slippage on core members 06, thus, have two sliding parts 07 that hold face 08 and touch core members 06.This holds face 08 and has hollow semicircular cross section (non-according to the diagram shown in the correct proportions) respectively, is used for surrounding fully on periphery columniform core members 06.Hold face 08 and preferably do not have similar structure, this holds face 08 thereby can hang down the production of cost ground.
In the plane of two sliding parts 07, core members 06 has equally distributed groove 09 on periphery in its columniform surface.This groove has semicircular cross section, thereby this groove constitutes semi-cylindrical hollow forming portion.Groove 09 with the direction of the central axes orientation of the cylindrical shape of core members 06 on extend.
Fig. 2 is illustrated in the injection moulding tool shown in Fig. 1 under the closure state.Under closure state, two sliding parts 07 on core members 06, the plane of two sliding parts 07 in fully on periphery surround core members 06 thereby hold face 08 with the mode slippage that touches.The surface of the circular cylindrical shell shell-like of core members 06 is held face 08 by two fully and touches in the plane of two sliding parts 07.Thus, groove 09 is covered, thereby constructs the pipe that has semi-circular cross-section.
Fig. 3 illustrates the other cross section of the injection moulding tool shown in Fig. 2.In order to find out a plurality of grooves 09, part illustrates core members 06 with dissecing.Can find out also that thus groove 09 is from extending to the core members 06 at the contact-making surface that holds between face 08 and the core members 06, and just in time not enter in the outside profiled member 02.
Fig. 4 illustrates the internal structure of the injection moulding tool shown in Fig. 1 with perspective view.What especially illustrate is, the hollow forming portion that in injection moulding tool, constructs, and these hollow forming radicals by which characters are arranged in traditional Chinese dictionaries comprise the hollow forming portion 11 that is used for relieving ring, groove 09 and moulding portion 04 earlier.Two sliding parts 07 and described sliding part 07 are shown in addition with respect to the layout that is configured in the hollow forming portion in the injection moulding tool.
Fig. 5 illustrates the other cross section of the injection moulding tool shown in Fig. 1.Shown cross sectional arrangement is in as lower plane, and the axis of symmetry of core members 06 is located in this plane.The hollow forming portion that is present in the injection moulding tool is shown again.In order to make the relieving ring moulding, externally profiled member 02 and and core members 06 between be configured with the hollow forming portion 11 of hollow cylinder.In addition, in the hollow forming portion 12 that is used for shown in this diagram in the threaded line of the inside of closing cover.It can also be seen that the hollow forming portion 13 that uses at the sealing lip of the annular of the inside of closing cover.Under the situation of the hollow forming portion 12 that not very is used for threaded line, the hollow forming portion 03 that constitutes the closing cover main body has identical inside diameter and identical outer dia with the hollow forming portion 11 that constitutes relieving ring.Do not include under the situation of groove 09, the diameter that the surface of core members 06 with circular cylindrical shell shell-like in the zone of groove 09, the diameter on the surface of this circular cylindrical shell shell-like equal the diameter of the core members 06 in the zone of the hollow forming portion 11 that is used for relieving ring and equal be used for the core members 06 in hollow forming portion 03 regional of closing cover main body.
In the embodiment shown in the injection moulding tool, the pour point (not shown) is arranged on the inboard of hollow forming portion.With shown in arrangement compare, the hollow forming portion that is used for forming closing cover can also arrange in the mode of rotating 180 ° with respect to injection moulding tool, thus with this pour point from externally-arranged to hollow forming portion.
Fig. 6 illustrates first preferred implementation according to closing cover of the present invention with profile.This closing cover at first comprises closing cover main body 16, and relieving ring 17 is molded on this closing cover main body 16 integratedly.Closing cover main body 16 has the shape of the hollow cylinder of one-sided closure basically, is configured with threaded line 18 and sealing lip 19 on the inboard of this closing cover main body 16.Relieving ring 17 has the shape of hollow cylinder equally, wherein, and the equal diameters of the diameter of the hollow cylinder shape of closing cover main body 16 and the hollow cylinder shape of relieving ring 17.
Relieving ring 17 is molded on the closing cover main body 16 with the maintenance contact pin of 21 forms ringwise integratedly by unique.Endless belt 21 is configured to ring, and this ring works as presetting the drawing crack line towards the transition part of closing cover main body 16 or towards the transition part of relieving ring 17.The outer dia of the ring that forms by endless belt 21 is the same big with the interior diameter of the hollow cylinder shape of closing cover main body 16 and relieving ring 17.Therefore, endless belt 21 is arranged in the inside of closing cover.Therefore, the gap between the upper surface of the lower surface of closing cover main body 16 and relieving ring 17 does not have material.
With 21 towards rake 22 closing cover main body 16 and have annular respectively towards the transition part place of relieving ring 17, guarantee thus: transition part has very narrow cross section, and therefore can be easily with relieving ring 17 drawing cracks.In addition, on the direction that also has on the peripheral direction of its hollow forming portion cylinder form at the axis of symmetry of its hollow forming portion cylinder form, all has constant material thickness with 21.
Relieving ring 17 is molded on the closing cover main body 16 as unique maintenance contact pin by endless belt 21, and is provided for producing closing cover at the injection moulding tool shown in Fig. 1 to 5, a plurality of maintenance contact pin of structure in this closing cover.
Fig. 7 illustrates second preferred implementation according to closing cover of the present invention with profile.This embodiment at first is equal at embodiment shown in Figure 6.Difference is, with 21 on the direction of the axis of symmetry of its hollow cylinder shape, especially has the material thickness that reduces on the direction of closing cover main body 16, will preset the drawing crack line thus and be limited to transition part place towards closing cover main body 16.
Fig. 8 illustrates the 3rd preferred implementation according to closing cover of the present invention with profile.This embodiment at first is equal at embodiment shown in Figure 6.Difference is only have rake 22 at the transition part place towards closing cover main body 16 with 21, will preset the drawing crack line thus and be limited to this transition part place.
Reference numerals list:
01 tool framework
02 outside profiled member
03 is used for the hollow forming section of closing cover main body
04 moulding section
05 -
06 core members
07 sliding part
08 holds face
09 groove
10?-
11 are used for the hollow forming portion of relieving ring
12 are used for the hollow forming portion of threaded line
13 are used for the hollow forming portion of sealing lip
14?-
15?-
16 closing cover main bodys
17 relieving rings
18 threaded line
19 sealing lips
20?-
21 endless belts
22 rakes
Claims (12)
1. be used for producing the injection moulding tool of closing cover, described closing cover has relieving ring (17), and described relieving ring (17) is molded on the lower limb of closing cover main body (16) integratedly by the maintenance contact pin (21) of one or more energy drawing crack, and described injection moulding tool comprises:
-be used for forming the outside profiled member (02) of the exterior contour of described closing cover;
-being used for forming the core members (06) of inside of the in-profile of described closing cover, described core members (06) is at the section that makes described closing cover main body (16) moulding and make in the transitional region between the section of described relieving ring (17) moulding and have the one or more hollow forming portions (09) that are used for making one or more described maintenance contact pin (21) moulding; And
-at least one has the sliding part (07) that holds face (08), described sliding part (07) slippage can be arrived in one or more described hollow forming portions (09) by means of the described face (08) that holds.
2. injection moulding tool according to claim 1, it is characterized in that, what a described hollow forming portion is inner described core members (06) just have in described transitional region, described hollow forming portion is extended to the annular in the transitional region of described core members (06) by the periphery along described core members (06) groove forms.
3. injection moulding tool according to claim 1, it is characterized in that, inner described core members (06) has a plurality of described hollow forming portions (09) in described transitional region, and described core members (06) has the surface of circular cylindrical shell shell-like in described transitional region, groove (09) moulding that forms described hollow forming portion is in the surface of described circular cylindrical shell shell-like, wherein, one or more described sliding parts (07) can arrive on the described core members (06) with the mode slippage that touches described transitional region by means of the face (08) that holds of described sliding part (07).
4. injection moulding tool according to claim 3, it is characterized in that, one or more described sliding parts (07) described held the cross section that face (08) has the open circles arc respectively, wherein, the described face (08) that holds is arranged with surface that holds described circular cylindrical shell shell-like and the mode that hides described groove (09) under the state that touches described core members (06).
5. injection moulding tool according to claim 4 is characterized in that, described injection moulding tool has two described sliding parts (07), wherein, describedly holds the cross section that face (08) has hollow semicircular arc respectively.
6. according to the described injection moulding tool of one of claim 3 to 5, it is characterized in that described groove (09) has semi-cylindrical described hollow forming portion respectively.
7. according to the described injection moulding tool of one of claim 3 to 5, it is characterized in that, described groove has trapezoidal cross section respectively, wherein, with compare towards the cross section at the transition part place of the described section that makes described relieving ring (17) moulding, littler towards the cross section at the transition part place of the described section that makes described closing cover main body (16) moulding.
8. according to the described injection moulding tool of one of claim 1 to 7, it is characterized in that, respectively the surface of the circular cylindrical shell shell-like of same diameter is connected on the surface of the described circular cylindrical shell shell-like of the described transitional region on the direction of described section on the direction of the described section that makes described closing cover main body (16) moulding and that make described relieving ring (17) moulding.
9. be used for producing the method for closing cover, comprise the following steps:
-injection moulding tool is provided, preferably provide according to the described described injection moulding tool of one of claim 1 to 8, described injection moulding tool is configured to make the forming part of described closing cover, described closing cover has relieving ring (17), and described relieving ring (17) is molded on the lower limb of closing cover main body (16) integratedly by the maintenance contact pin (21) of one or more energy drawing crack;
-load described injection moulding tool with liquid synthetic material;
-described synthetic material is hardened;
-open described injection moulding tool; And
-take out described closing cover.
10. closing cover, described closing cover has relieving ring (17), described relieving ring (17) is molded on the lower limb of closing cover main body (16) integratedly by the maintenance contact pin (21) of one or more energy drawing crack, wherein, between the upper surface of the lower surface of described closing cover main body (16) and described relieving ring (17), there is free clearance, it is characterized in that, described free clearance is not to be worked in the described closing cover main body (16) by cutting or similar processing mode, thereby the described upper surface of the described lower surface of described closing cover main body (16) and described relieving ring (17) has respectively as lower surface, described surface just as described in closing cover injection-molded finished the existing surface.
11. closing cover according to claim 10, it is characterized in that, one or more described maintenance contact pin (21) are arranged in the inside of described closing cover, and do not protrude into or just protrude into a little in the described gap between the end face of the end face of described closing cover main body (16) and described relieving ring (17) and go.
12. according to claim 10 or 11 described closing covers, described closing cover can be produced by method according to claim 9.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102009044643A DE102009044643A1 (en) | 2009-11-24 | 2009-11-24 | Locking cap with guarantee ring as well as injection mold and process for its production |
| DE102009044643.5 | 2009-11-24 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102069562A true CN102069562A (en) | 2011-05-25 |
| CN102069562B CN102069562B (en) | 2014-05-21 |
Family
ID=43587409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010105053.1A Expired - Fee Related CN102069562B (en) | 2009-11-24 | 2010-01-27 | Sealed cap provided with guard ring and injection molding tool and method for producing the same |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102069562B (en) |
| DE (1) | DE102009044643A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108778666A (en) * | 2016-03-14 | 2018-11-09 | 萨克米伊莫拉机械合作社合作公司 | There are the device and method of the lid of anti-theft ring for injection molding |
| RU2802088C1 (en) * | 2022-01-24 | 2023-08-22 | Максим Владиславович Ларин | Sealing means with overpressure protection |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1432210A1 (en) * | 1963-02-14 | 1969-03-20 | Hopf A Metallwerke Kg | Vessel with a closure member in the form of a cap or a stopper |
| GB2172239A (en) * | 1985-03-12 | 1986-09-17 | Mardon Illingworth | Method and mould for a cap with a tamper-evident band |
| DE3622108A1 (en) * | 1986-07-02 | 1988-01-07 | Alcoa Gmbh Verpackwerke | PLASTIC SCREW CAP FOR CONTAINERS |
| CN87211117U (en) * | 1987-01-22 | 1988-09-21 | 约翰森和乔根森塑料有限公司 | Thin-wall container closure assembly |
| CH669556A5 (en) * | 1986-01-16 | 1989-03-31 | Obrist Ag Crown | Injection moulds for screw closure caps |
| CN2113947U (en) * | 1991-12-25 | 1992-08-26 | 陈林春 | Counterfeit-proof bottle top |
| FR2775959A1 (en) * | 1998-03-13 | 1999-09-17 | Plastiques De France Ind | Tamper-proof drinks bottle cap in two-color plastic with integral anti-tamper ring |
| US6325227B1 (en) * | 2000-03-20 | 2001-12-04 | Phoenix Closures, Inc. | Tamper-indicating closure with horizontal undercuts |
| JP2004359254A (en) * | 2003-06-02 | 2004-12-24 | Nihon Tetra Pak Kk | Cap device |
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| GB1446505A (en) * | 1974-03-27 | 1976-08-18 | Montgomery Son Ltd Daniel | Moulding apparatus |
| IT1166774B (en) | 1978-05-26 | 1987-05-06 | Plastivit Sa | PLASTIC MATERIAL CAP AND TOOL FOR ITS INJECTION FORMING |
| DE3206245A1 (en) | 1982-02-20 | 1983-09-01 | Alcoa Deutschland Gmbh Verpackungswerke, 6520 Worms | Construction kit for a cap-type closure |
| DE3227510C3 (en) | 1982-07-23 | 1995-09-07 | Alcoa Gmbh Verpackwerke | Plastic tamper-evident ring for tamper-evident closure for metallic screw caps and assembly procedure for the tamper-evident ring |
| DE8220978U1 (en) | 1982-07-23 | 1983-01-05 | Alcoa Deutschland Gmbh Verpackungswerke, 6520 Worms | Kit with a plastic ring for a cap, in particular made of metal for containers with a threaded neck or undercuts |
| US4938679A (en) * | 1989-05-18 | 1990-07-03 | Cores Unlimited, A Partnership | Collapsible core for molding closures having interrupted interior threads and the like |
| AU656314B2 (en) | 1989-12-28 | 1995-02-02 | Innovative Closures, Inc. | Tamper evident caps and methods for producing such caps |
| DE4016350A1 (en) | 1990-05-21 | 1991-11-28 | Frank Schellenbach | METHOD AND DEVICE FOR REMOVING A GUARANTEE TAPE FROM A CAP |
| DE59208436D1 (en) | 1991-06-29 | 1997-06-05 | Alcoa Gmbh Verpackwerke | PLASTIC LOCK FOR CONTAINERS WITH ORIGINALITY SECURING ELEMENT |
| GB9205374D0 (en) * | 1992-03-12 | 1992-04-22 | Metal Closures Group Ltd | Container closures |
| DE4207996C2 (en) | 1992-03-13 | 1995-03-09 | Alcoa Gmbh Verpackwerke | Screw cap |
| DE4214151C2 (en) | 1992-04-29 | 1995-11-09 | Alcoa Gmbh Verpackwerke | Container closure |
| AU668797B2 (en) | 1992-12-22 | 1996-05-16 | Crown Cork Ag | Warranty closure and method of manufacturing it |
| GB2295143B (en) * | 1995-03-03 | 1998-04-22 | Massmould Holdings | Closure device |
| DE19613364C1 (en) | 1996-04-03 | 1997-11-20 | Weis Kg | Screw cap made of plastic and process for its manufacture |
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2009
- 2009-11-24 DE DE102009044643A patent/DE102009044643A1/en not_active Withdrawn
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2010
- 2010-01-27 CN CN201010105053.1A patent/CN102069562B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1432210A1 (en) * | 1963-02-14 | 1969-03-20 | Hopf A Metallwerke Kg | Vessel with a closure member in the form of a cap or a stopper |
| GB2172239A (en) * | 1985-03-12 | 1986-09-17 | Mardon Illingworth | Method and mould for a cap with a tamper-evident band |
| CH669556A5 (en) * | 1986-01-16 | 1989-03-31 | Obrist Ag Crown | Injection moulds for screw closure caps |
| DE3622108A1 (en) * | 1986-07-02 | 1988-01-07 | Alcoa Gmbh Verpackwerke | PLASTIC SCREW CAP FOR CONTAINERS |
| CN87211117U (en) * | 1987-01-22 | 1988-09-21 | 约翰森和乔根森塑料有限公司 | Thin-wall container closure assembly |
| CN2113947U (en) * | 1991-12-25 | 1992-08-26 | 陈林春 | Counterfeit-proof bottle top |
| FR2775959A1 (en) * | 1998-03-13 | 1999-09-17 | Plastiques De France Ind | Tamper-proof drinks bottle cap in two-color plastic with integral anti-tamper ring |
| US6325227B1 (en) * | 2000-03-20 | 2001-12-04 | Phoenix Closures, Inc. | Tamper-indicating closure with horizontal undercuts |
| JP2004359254A (en) * | 2003-06-02 | 2004-12-24 | Nihon Tetra Pak Kk | Cap device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108778666A (en) * | 2016-03-14 | 2018-11-09 | 萨克米伊莫拉机械合作社合作公司 | There are the device and method of the lid of anti-theft ring for injection molding |
| US10974872B2 (en) | 2016-03-14 | 2021-04-13 | Sacmi Cooperativa Meccanici Imola Societa' Cooperativa | Apparatus and method for injection moulding a cap with a tamperproof ring |
| CN108778666B (en) * | 2016-03-14 | 2021-04-16 | 萨克米伊莫拉机械合作社合作公司 | Device and method for injection moulding a cap with a tamper-evident ring |
| RU2802088C1 (en) * | 2022-01-24 | 2023-08-22 | Максим Владиславович Ларин | Sealing means with overpressure protection |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102069562B (en) | 2014-05-21 |
| DE102009044643A1 (en) | 2011-05-26 |
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