CN204123597U - The fixed structure of a kind of core rod and core rod ring - Google Patents
The fixed structure of a kind of core rod and core rod ring Download PDFInfo
- Publication number
- CN204123597U CN204123597U CN201420467046.XU CN201420467046U CN204123597U CN 204123597 U CN204123597 U CN 204123597U CN 201420467046 U CN201420467046 U CN 201420467046U CN 204123597 U CN204123597 U CN 204123597U
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- core rod
- ring
- rod ring
- counter sink
- die lip
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Abstract
The utility model relates to packaging for foodstuff technical field of mold, aims to provide the fixed structure of a kind of core rod and core rod ring.The fixed structure of this kind of core rod and core rod ring is as the parting syndeton of bottle embryo injection moulded components, bottle embryo injection moulded components comprises core rod, core rod ring and die lip, the outside centre position of core rod is provided with a step, one end of core rod is also provided with counter sink, counter sink is communicated to step surface from one end of core rod, core rod ring is in circular core rod ring, one side end face of core rod ring is provided with screwed hole, core rod Ring current distribution through hole energy interference fit is enclosed within core rod, core rod ring utilizes screw to be locked on core rod by the screwed hole on the counter sink on core rod and core rod ring, the other end of core rod ring is provided with a bellmouth, one end of die lip is provided with the step surface of taper.Core rod ring in the utility model is low as consumable accessory replacement cost, and the interference fit of core rod and core rod ring makes the positioning precision between die lip and core rod higher, the better quality of moulding.
Description
Technical field
The utility model is about packaging for foodstuff technical field of mold, particularly the fixed structure of a kind of core rod and core rod ring.
Background technology
The assembling of interference fit is loaded in the external member (orifice) of reduced size by the internal member of large-size (shaft member).Interference fit can bear larger axial force, moment of torsion and dynamic loading, and application is very extensive, the such as connection of gear, shaft coupling, flywheel, belt pulley and axle, the connection etc. of bearing and bearing holder (housing, cover).Because it plants to be fixedly connected with, therefore require correct mutual alignment and securing member during assembling, also require intensity and the precision of not damaging parts during assembling, load simple, convenient and rapid.Interference fit requires that the material of part can with the stress caused by maximum interference, and the bonding strength of cooperation should be guaranteed when minimum interference.Conventional assembly method has press-fit, hot matching method, cold matching method.
Along with the development of food packaging industry, the whole world is increasing to the demand of plastic products, and product design also becomes increasingly complex.Contained by bottle base injection machine list mold, chamber number gets more and more, and present technology has developed into the highest 192 chambeies, will reach very high dimensional accuracy etc. and require also more and more harsher in limited space.
The parting of injection mold has two places, and one is between die lip and core rod, and another is between die lip and die cavity.For rotary body product, the axiality between these forming parts requires very high, otherwise product there will be the defects such as such as dislocation, overlap at forming surface place.During reality is produced, such defect again right and wrong is usually shown in.
Utilize cone match concentric to ensure in prior art, and core rod also coordinates with core rod seat, its advantage is that parting is good, and product is easily full of, and exhaust is also relatively better, part processing material-saving, but this cone match and Same Part have the design of the important cooperation in two places, required precision is too high, and difficulty of processing is large, wayward in the margin of tolerance of regulation, make final quality of fit can not be too high.
Utility model content
Main purpose of the present utility model is to overcome deficiency of the prior art, provide a kind of can improve positioning precision between die lip and core rod core rod and the fixed structure of core rod ring.For solving the problems of the technologies described above, solution of the present utility model is:
There is provided the fixed structure of a kind of core rod and core rod ring, as the parting syndeton of bottle embryo injection moulded components, bottle embryo injection moulded components comprises core rod, core rod ring and die lip;
Described core rod is for the shaping core of bottle base inner chamber, and the outside centre position of core rod is provided with a step, and one end of core rod is also provided with at least one counter sink, and counter sink is communicated to step surface from one end of core rod;
Described core rod ring is in circular core rod ring, one side end face of core rod ring is provided with at least one screwed hole, core rod Ring current distribution through hole energy interference fit is enclosed within core rod, and maximum interference amount is 0.025mm, minimum interference amount is 0.01mm, and a side end face of core rod ring is close to the step surface of core rod coordinate, core rod ring utilizes screw to be locked on core rod by the screwed hole on the counter sink on core rod and core rod ring; The other end of core rod ring is provided with a bellmouth;
The inner chamber of described die lip is for the shaping part of bottle base oral area, and one end of die lip is provided with the step surface of taper, for coordinating fixing with the bellmouth of core rod ring.
As further improvement, the counter sink on described core rod is provided with two, and the screwed hole on core rod ring is provided with two.
As further improvement, the size range of described core rod Ring current distribution through hole (and cooperation position of core rod) (is determined according to the size of bottle base grammes per square metre) between Φ 23mm ~ Φ 57mm.
Operation principle of the present utility model: by this fixed form of core rod and core rod ring, core rod ring is set on step corresponding to core rod after adding thermal expansion, and the screwed hole on core rod ring is aimed at the counter sink on core rod, then screw down, form interference fit with core rod after core rod ring cooling meat, then can ensure that core rod ring can not depart from core rod; The conical surface of die lip one end coordinates with the conical hole of core rod ring, and in folding mold process, the wearing and tearing of this mating surface are relatively more serious, therefore core rod ring is consumable accessory.
Compared with prior art, the beneficial effects of the utility model are:
Core rod ring is low as consumable accessory replacement cost, and the interference fit of core rod and core rod ring makes the positioning precision between die lip and core rod higher, the better quality of moulding.
Accompanying drawing explanation
Fig. 1 is general structure of the present utility model.
Fig. 2 is the structure chart of core rod in the utility model.
Fig. 3 is the structure chart of core rod ring in the utility model.
Fig. 4 is the structure chart of die lip in the utility model.
Reference numeral in figure is: 1 core rod; 2 core rod rings; 3 die lips; 4 bottle bases.
Detailed description of the invention
Below in conjunction with accompanying drawing and detailed description of the invention, the utility model is described in further detail:
Bottle embryo injection moulded components comprises core rod 1, core rod ring 2 and die lip 3, and this patent provides the fixed structure of core rod 1 as shown in Figure 1 with core rod ring 2, as the parting syndeton of bottle embryo injection moulded components.
Core rod 1 is for the shaping core of bottle base 4 inner chamber, and the outside centre position of core rod 1 is provided with a step, and one end of core rod 1 is also provided with two counter sinks, and counter sink is communicated to step surface from one end of core rod 1.
Core rod ring 2 is in circular core rod ring 2, one side end face of core rod ring 2 is provided with two screwed holes, the central through hole energy interference fit of core rod ring 2 is enclosed within core rod 1, according to the size of bottle base 4 grammes per square metre, the scope of the basic size of this cooperation position is Φ 23mm ~ Φ 57mm maximum interference amount is 0.025mm, minimum interference amount is 0.01mm, and a side end face of core rod ring 2 is close to the step surface of core rod 1 coordinate, core rod ring 2 utilizes screw to be locked on core rod 1 by the screwed hole on the counter sink on core rod 1 and core rod ring 2; The other end of core rod ring 2 is provided with a bellmouth.
The inner chamber of die lip 3 is that one end of die lip 3 is provided with the step surface of taper for bottle base 4 oral area shaping part, for coordinating fixing with the bellmouth of core rod ring 2.
During work: core rod ring 2 is set to after adding thermal expansion on the step of core rod 1 correspondence, and the screwed hole on core rod ring 2 is aimed at the counter sink on core rod 1, then screw down, interference fit is formed with core rod 1 after core rod ring 2 cooling meat, then can ensure that core rod ring 2 can not depart from core rod 1, but also can ensure that core rod 1 and core rod ring 2 have very high concentricity; The conical surface of die lip 3 one end coordinates with the bellmouth of core rod ring 2, in folding mold process, the wearing and tearing of this mating surface are more serious, in this fixed form, core rod ring 2 is low as consumable accessory replacement cost, and the interference fit of core rod 1 and core rod ring 2 finally makes the concentricity between die lip 3 and core rod 1 higher.
Finally, it should be noted that above what enumerate is only specific embodiment of the utility model.Obviously, the utility model is not limited to above embodiment, can also have a lot of distortion.All distortion that those of ordinary skill in the art can directly derive or associate from content disclosed in the utility model, all should think protection domain of the present utility model.
Claims (3)
1. a fixed structure for core rod and core rod ring, as the parting syndeton of bottle embryo injection moulded components, is characterized in that, bottle embryo injection moulded components comprises core rod, core rod ring and die lip;
Described core rod is for the shaping core of bottle base inner chamber, and the outside centre position of core rod is provided with a step, and one end of core rod is also provided with at least one counter sink, and counter sink is communicated to step surface from one end of core rod;
Described core rod ring is in circular core rod ring, one side end face of core rod ring is provided with at least one screwed hole, core rod Ring current distribution through hole energy interference fit is enclosed within core rod, and maximum interference amount is 0.025mm, minimum interference amount is 0.01mm, and a side end face of core rod ring is close to the step surface of core rod coordinate, core rod ring utilizes screw to be locked on core rod by the screwed hole on the counter sink on core rod and core rod ring; The other end of core rod ring is provided with a bellmouth;
The inner chamber of described die lip is for the shaping part of bottle base oral area, and one end of die lip is provided with the step surface of taper, for coordinating fixing with the bellmouth of core rod ring.
2. the fixed structure of a kind of core rod according to claim 1 and core rod ring, is characterized in that, the counter sink on described core rod is provided with two, and the screwed hole on core rod ring is provided with two.
3. the fixed structure of a kind of core rod according to claim 1 and core rod ring, is characterized in that, the size range of described core rod Ring current distribution through hole is between Φ 23mm ~ Φ 57mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420467046.XU CN204123597U (en) | 2014-08-18 | 2014-08-18 | The fixed structure of a kind of core rod and core rod ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420467046.XU CN204123597U (en) | 2014-08-18 | 2014-08-18 | The fixed structure of a kind of core rod and core rod ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204123597U true CN204123597U (en) | 2015-01-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420467046.XU Active CN204123597U (en) | 2014-08-18 | 2014-08-18 | The fixed structure of a kind of core rod and core rod ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204123597U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111300753A (en) * | 2018-12-11 | 2020-06-19 | 赫斯基注塑系统有限公司 | Mold, mold assembly and stack member |
-
2014
- 2014-08-18 CN CN201420467046.XU patent/CN204123597U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111300753A (en) * | 2018-12-11 | 2020-06-19 | 赫斯基注塑系统有限公司 | Mold, mold assembly and stack member |
| CN111300753B (en) * | 2018-12-11 | 2022-07-29 | 赫斯基注塑系统有限公司 | Mold, mold assembly and stack member |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |