CN217514517U - Die cavity structure with movable insert and bottle blowing die - Google Patents
Die cavity structure with movable insert and bottle blowing die Download PDFInfo
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- CN217514517U CN217514517U CN202220957403.5U CN202220957403U CN217514517U CN 217514517 U CN217514517 U CN 217514517U CN 202220957403 U CN202220957403 U CN 202220957403U CN 217514517 U CN217514517 U CN 217514517U
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Abstract
The utility model provides a die cavity structure and bottle blowing mould with movable mold insert, the utility model belongs to bottle blowing mould technical field, including two mutually supporting die cavity half moulds and at least one mold insert, the die cavity half mould has the first shaping surface of part body shape of restricting the container at least, the mold insert has the second shaping surface of part body shape of restricting the container at least, the die cavity half mould is seted up the storage tank that can hold the mold insert, be equipped with elastic construction between mold insert and the storage tank; the insert is configured to: the insert protrudes out of the first molding surface at least under the pressure action of the elastic structure; and the elastic structure is compressed under the pressure action of the container blank and retracts to the accommodating groove; the first forming surface and the second forming surface form a forming surface which at least limits the shape of the main body of the container part, the wall thickness of the container formed by blowing is uniform, and the problem that the wall thickness of the container after blowing is not uniform due to the fact that radial displacement of the container along the circumferential direction is not uniform in the process of blowing the container with an irregular shape is solved.
Description
Technical Field
The utility model belongs to the technical field of the bottle blowing mould, concretely relates to die cavity structure and bottle blowing mould with movable mold insert.
Background
In the prior art, a container is formed by blowing a container blank in a bottle blowing mold, and in the blowing process, the heated container blank is attached to a cavity after axial displacement and radial displacement under the stretching action to form the container.
For irregularly-shaped containers (such as containers with rectangular, oval and oblong radial sections) with inconsistent radial displacement along the circumferential direction, taking a container with a rectangular radial section as an example, the radial section of the container has long sides and short sides, and the long sides and the short sides have inconsistent radial displacement along the circumferential direction when the container is formed; the plastic of the part of the container blank forming the long side remains relatively ductile and continues to stretch, having a thinner thickness with respect to the short side, resulting in the problem of uneven wall thickness of the blow formed container.
In addition, for a specific container (such as a container with a handle), when blowing, the local wall thickness of the container needs to be increased, and the traditional bottle blowing mold and bottle blowing method are difficult to realize or control.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model provides a die cavity structure and a bottle blowing die with movable mold inserts.
The utility model provides a technical scheme that its technical problem adopted is:
a mold cavity structure with a movable mold insert comprises two mold cavity half molds and at least one mold insert, wherein the two mold cavity half molds and the at least one mold insert are matched with each other, the mold cavity half molds are provided with first molding surfaces at least limiting part of the main body shape of a container, the mold inserts are provided with second molding surfaces at least limiting part of the main body shape of the container, the mold cavity half molds are provided with accommodating grooves capable of accommodating the mold inserts, and an elastic structure is arranged between the mold inserts and the accommodating grooves; the insert is configured to: the insert protrudes out of the first molding surface at least under the pressure action of the elastic structure; and the elastic structure is compressed under the pressure action of the container blank and retracts to the accommodating groove; the first and second moulding surfaces form moulding surfaces defining at least the shape of the body of the container part.
As a further improvement of the utility model, the two ends of the elastic structure are respectively connected and/or abutted on the bottom of the accommodating groove and the back of the insert.
As a further improvement of the utility model, the elastic structure is a spring.
As a further improvement, the first connection blind hole that is used for holding the elastic structure tip is offered to the bottom of storage tank, the external diameter looks adaptation of the aperture of first connection blind hole and the corresponding tip of elastic structure.
As a further improvement, the second that is used for holding the elastic construction tip is offered at the back of mold insert and is connected the blind hole, the aperture of blind hole and the external diameter looks adaptation of the corresponding tip of elastic construction are connected to the second.
As a further improvement, the direction through-hole has been seted up along the flexible direction of mold insert to the bottom of storage tank, the back of mold insert be equipped with the guide post of direction through-hole looks adaptation, the guide post slides and sets up in the direction through-hole.
As a further improvement of the utility model, the elastic structure is arranged outside the guide post in a surrounding manner.
As a further improvement, the utility model discloses be equipped with the adapter sleeve hole in the guide post, elastic construction sets up downtheholely at the adapter sleeve, the outside of die cavity half mould be equipped with the support column of adapter sleeve hole looks adaptation, it is downthehole that the support column extends to the adapter sleeve, elastic construction's one end is passed through the support column and is spacing.
As a further improvement, the blind hole is connected to the third in the support column, the one end of elastic construction is passed through the third and is connected the blind hole spacing.
Based on the mold cavity structure with the movable insert, the invention further provides a bottle blowing mold, which comprises a bottom mold and the mold cavity structure, wherein the bottom mold is used for limiting the shape of the bottom of the container.
The utility model has the advantages that: when the container with irregular shape is blown, the insert is not subjected to the expansion pressure of the container blank, the second molding surface of the insert protrudes out of the first molding surface of the mold cavity half die under the elastic force of the elastic structure, and the part of the container with longer radial displacement along the circumferential direction is contacted with the second molding surface of the insert along with the expansion of the container blank by stretching and blowing, thereby being cooled in advance, slowing down the ductility of the plastic cement of the longer part of the radial displacement, compressing the elastic structure of the insert to retract into the containing groove under the action of the expansion pressure of the container blank in the continuous blowing process of the container blank, so that the first forming surface and the second forming surface form a forming surface at least for limiting the shape of the container body, the wall thickness of the container formed by blowing is uniform, the problem that the container with irregular shape is not formed in the blowing process, the problem of uneven wall thickness after blowing of the container arises due to the non-uniform radial displacement of the container in the circumferential direction.
In addition, when some specific container blowing is carried out, the specific part can be cooled in advance through the insert, the ductility of the plastic of the specific part is reduced, and the local wall thickness of the container is increased.
Drawings
The invention will be further explained with reference to the drawings and the embodiments below:
FIG. 1 is a schematic view of a mold cavity structure with an insert in a retracted state according to an embodiment;
FIG. 2 is a schematic view of an embodiment of a mold cavity configuration with an extended mold insert;
FIG. 3 is a schematic view of an installation structure of the elastic structure according to the first embodiment;
FIG. 4 is a schematic view showing an installation structure of the elastic structure according to the second embodiment;
FIG. 5 is an exploded view of FIG. 4;
FIG. 6 is a schematic view showing an installation structure of the elastic structure according to the third embodiment;
FIG. 7 is an exploded view of FIG. 6;
FIG. 8 is a schematic view showing an installation structure of the elastic structure according to the fourth embodiment;
FIG. 9 is a schematic view showing the mounting structure of the fifth embodiment of the elastic structure;
FIG. 10 is an exploded view of FIG. 9;
FIG. 11 is a schematic view showing an installation structure of the elastic structure according to the sixth embodiment;
fig. 12 is an exploded view of fig. 11.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention.
The first embodiment is as follows:
as shown in fig. 1 to 3, the present embodiment discloses a cavity structure with a movable insert, which includes two cavity half dies 1 and at least one insert 2, which are matched with each other, where the cavity half die 1 has a first molding surface 3 defining at least a part of a main body shape of a container, the insert 2 has a second molding surface 4 defining at least a part of a main body shape of a container, the cavity half die 1 is provided with an accommodating groove 5 capable of accommodating the insert 2, and an elastic structure 6 is provided between the insert 2 and the accommodating groove 5; the insert 2 is configured to: the insert 2 protrudes from the first molding surface 3 at least under the pressure of said resilient structure 6; and the compression elastic structure 6 retracts into the containing groove 5 under the pressure of the container blank, and the first molding surface 3 and the second molding surface 4 form a molding surface which at least limits the shape of the main body of the container part; in the molding process, the elastic structure 6 forces the insert 2 to protrude out of the first molding surface 3 under the action of elasticity, the insert 2 compresses the elastic structure 6 to retract into the accommodating groove 5 under the action of the expansion pressure of the container blank, and the insert 2 retracts into the accommodating groove 5; when the axial side surface of the insert has a partial molding surface, the insert is in a state of being partially protruded from the accommodating groove, and the first molding surface 3 and the second molding surface 4 constitute a molding surface defining at least the shape of the container body. When the irregular-shape container is blown, the insert 2 is not subjected to the expansion pressure of the container blank in the initial state, the second molding surface 4 of the insert 2 protrudes out of the first molding surface 3 of the cavity half mold 1 under the elastic force of the elastic structure 6, the part of the container with longer radial displacement along the circumferential direction is contacted with the second molding surface 4 of the insert 2 along with the expansion of the container blank by stretching and blowing, so that the container is cooled in advance, the plastic ductility of the part with longer radial displacement is reduced, the elastic structure 6 is compressed to retract into the accommodating groove 5 under the expansion pressure of the container blank in the continuous blowing process of the container blank, the first molding surface 3 and the second molding surface 4 form molding surfaces at least limiting the shape of the container body, and the wall thickness of the container formed by blowing is uniform.
In addition, the mold cavity structure of the embodiment can also be applied to the blowing of a specific container, and the specific part is cooled in advance through the mold insert 2, so that the plastic ductility of the specific part is reduced, and the local wall thickness of the container is increased.
In this embodiment, two ends of the elastic structure 6 are directly connected and/or abutted to the bottom of the accommodating groove 5 and the back of the insert 2, respectively. The elastic structure 6 is a spring.
Example two:
the implementation of the present embodiment is substantially the same as that of the first embodiment, and the differences are as follows: as shown in fig. 4 and 5, a first connecting blind hole 7 for accommodating an end of the elastic structure 6 is formed at the bottom of the accommodating groove 5, and the aperture of the first connecting blind hole 7 is adapted to the outer diameter of the corresponding end of the elastic structure 6; the aperture of the first connecting blind hole 7 cannot hinder the local telescopic action of the elastic structure 6, and preferably clearance fit is adopted between the elastic structure 6 and the first connecting blind hole 7; the back of the insert 2 is provided with a second connecting blind hole 8 for accommodating the end part of the elastic structure 6, and the aperture of the second connecting blind hole 8 is matched with the outer diameter of the corresponding end part of the elastic structure 6; similarly, the elastic structure 6 and the second connecting blind hole 8 are in clearance fit; thereby facilitating the connection of the elastic structure 6; in order to further improve the convenience of connecting the elastic structure 6, a guide column or a connecting seat with a connecting hole is arranged at the bottom of the first connecting blind hole 7 and the bottom of the second connecting blind hole 8, and the tail end of the elastic structure 6 is inserted into the connecting hole, so that the elastic structure is connected to the bottom of the first connecting blind hole 7 and the bottom of the second connecting blind hole 8.
Example three:
the implementation of the present embodiment is substantially the same as that of the second embodiment, and the differences are as follows: as shown in fig. 6 and 7, a guide through hole 9 is formed in the bottom of the accommodating groove 5 along the extension direction of the insert 2, a guide post 10 adapted to the guide through hole 9 is arranged on the back of the insert 2, the guide post 10 is slidably disposed in the guide through hole 9, the guide post 10 is disposed in the middle of the back of the insert 2, and the elastic structure 6 is disposed on the periphery of the guide post 10.
Example four:
the implementation of the present embodiment is substantially the same as that of the third embodiment, and the differences are as follows: as shown in fig. 8, the elastic structure 6 is disposed around the outside of the guide post 10.
Example five:
the implementation of the present embodiment is substantially the same as that of the fourth embodiment, and the differences are as follows: as shown in fig. 9 and 10, a connecting sleeve hole 11 is formed in the guide post 10, the elastic structure 6 is disposed in the connecting sleeve hole 11, a supporting post 12 adapted to the connecting sleeve hole 11 is disposed outside the mold cavity half mold 1, the supporting post 12 extends into the connecting sleeve hole 11, one end of the elastic structure 6 is limited by the supporting post 12, the connecting sleeve hole 11 may be a through hole or a blind hole structure, and when the connecting sleeve hole 11 is a through hole structure, the other end of the elastic structure 6 is limited by the bottom of the accommodating groove 5; when the connecting sleeve hole 11 is a blind hole structure, the other end of the elastic structure 6 is limited by the connecting sleeve hole 11.
Example six:
the implementation of the present embodiment is substantially the same as that of the fifth embodiment, and the differences are as follows: as shown in fig. 11 and 12, a third connecting blind hole 13 is provided in the supporting column 12, and one end of the elastic structure 6 is limited by the third connecting blind hole 13.
Example seven:
based on the mold cavity structure with the movable insert disclosed by the embodiment, the embodiment also discloses a bottle blowing mold, which comprises a bottom mold and the mold cavity structure, wherein the bottom mold is used for limiting the shape of the bottom of the container. The combination between the bottom mold and the above-described mold cavity structure may be performed in any manner known in the art and will not be described herein.
The above description is only the preferred embodiment of the present invention, and the technical solutions of the objects of the present invention are all within the protection scope of the present invention as long as the objects are achieved by the substantially same means.
Claims (10)
1. The utility model provides a die cavity structure with movable mold insert which characterized in that: the mold comprises two mutually matched mold cavity half molds and at least one insert, wherein the mold cavity half molds are provided with first molding surfaces which at least limit part of the main body shape of a container, the insert is provided with second molding surfaces which at least limit part of the main body shape of the container, the mold cavity half molds are provided with accommodating grooves which can accommodate the inserts, and elastic structures are arranged between the inserts and the accommodating grooves; the insert is configured to: the insert protrudes out of the first molding surface at least under the pressure action of the elastic structure; and the elastic structure is compressed under the pressure action of the container blank and retracts to the accommodating groove; the first and second moulding surfaces form moulding surfaces defining at least the shape of the body of the container part.
2. The cavity structure with a movable insert according to claim 1, wherein: and two ends of the elastic structure are respectively connected and/or abutted against the bottom of the accommodating groove and the back of the insert.
3. The cavity structure with a movable insert according to claim 1, wherein: the elastic structure is a spring.
4. The cavity structure with the movable insert according to claim 1, wherein: the bottom of the accommodating groove is provided with a first connecting blind hole for accommodating the end part of the elastic structure, and the aperture of the first connecting blind hole is matched with the outer diameter of the corresponding end part of the elastic structure.
5. The cavity structure with a movable insert according to claim 1, wherein: the back of the insert is provided with a second connecting blind hole for accommodating the end part of the elastic structure, and the aperture of the second connecting blind hole is matched with the outer diameter of the corresponding end part of the elastic structure.
6. The cavity structure with a movable insert according to claim 1, wherein: the bottom of the accommodating groove is provided with a guide through hole along the telescopic direction of the insert, the back of the insert is provided with a guide column matched with the guide through hole, and the guide column is arranged in the guide through hole in a sliding manner.
7. The cavity structure with a movable insert according to claim 6, wherein: the elastic structure is arranged outside the guide post in a surrounding mode.
8. The cavity structure with the movable insert according to claim 6, wherein: the mold cavity half mold is characterized in that a connecting sleeve hole is formed in the guide column, the elastic structure is arranged in the connecting sleeve hole, a supporting column matched with the connecting sleeve hole is arranged outside the mold cavity half mold, the supporting column extends into the connecting sleeve hole, and one end of the elastic structure is limited through the supporting column.
9. The cavity structure with the movable insert according to claim 8, wherein: the support column is internally provided with a third connecting blind hole, and one end of the elastic structure is limited through the third connecting blind hole.
10. The bottle blowing mold is characterized in that: a mould cavity structure as claimed in any one of claims 1 to 9 comprising a base mould for defining the shape of the bottom of the container and a mould cavity structure as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220957403.5U CN217514517U (en) | 2022-04-23 | 2022-04-23 | Die cavity structure with movable insert and bottle blowing die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220957403.5U CN217514517U (en) | 2022-04-23 | 2022-04-23 | Die cavity structure with movable insert and bottle blowing die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217514517U true CN217514517U (en) | 2022-09-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220957403.5U Active CN217514517U (en) | 2022-04-23 | 2022-04-23 | Die cavity structure with movable insert and bottle blowing die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217514517U (en) |
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2022
- 2022-04-23 CN CN202220957403.5U patent/CN217514517U/en active Active
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