CN217196873U - Die cavity structure with sealing structure and bottle blowing die - Google Patents
Die cavity structure with sealing structure and bottle blowing die Download PDFInfo
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- CN217196873U CN217196873U CN202220684427.8U CN202220684427U CN217196873U CN 217196873 U CN217196873 U CN 217196873U CN 202220684427 U CN202220684427 U CN 202220684427U CN 217196873 U CN217196873 U CN 217196873U
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Abstract
The utility model provides a die cavity structure and bottle blowing mould with seal structure, includes two die cavity half moulds of mutually supporting, the die cavity half mould has shaping face and die joint, the upper end of shaping face is equipped with jaw portion, its characterized in that: the die joint is equipped with seal structure in nip portion below, seal structure is used for blockking gas and gets into the shaping face through the die joint when two die cavity half moulds are in the compound die state, and at the blowing in-process, the gas that escapes from bottle base oral area receives blockking of bottle base support ring and seal structure, can transversely escape along seal structure, avoids getting into the shaping face through the compound die clearance between the die joint, guarantees the shaping effect of bottle, guarantees the structural strength of bottle simultaneously.
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 seal structure.
Background
The prior bottle blowing machine supports the support ring A of the bottle blank through the clamping opening during bottle blowing, so that the bottle blank main body is positioned in the mold cavity of the bottle blowing mold; certainly, for a bottle blowing mold with the clamping opening part and the mold cavity in an integrated structure, the clamping opening part is positioned at the upper end part of the mold cavity, and the upper end surface of the mold cavity and the upper end surface of the clamping opening part support a support ring A of a bottle blank; pressing the pressing surface C of the pressing head B on the top surface of the mold cavity, stretching the bottle blank to the bottom of the mold cavity by contacting the bottom of the bottle blank with the stretching rod, injecting compressed gas in the stretching process of the stretching rod, blowing the bottle blank with the help of the compressed gas to enable the bottle blank to be tightly attached to the mold cavity wall of the mold, and cooling and shaping to obtain the bottle.
The part from the bottle opening to the main body is called a bottle shoulder, a gap is formed between the support ring A and the inner ring surface D of the abutting head B and possibly caused by dislocation of the clamping opening parts of the two die cavity half dies, in the blowing process, when the two die cavity half dies are in a die closing state, gas escaping from the bottle blank opening part E is diffused to the bottle shoulder or even a forming surface corresponding to a bottle body through the gap, and as the temperature of the escaping gas is lower than that of the bottle blank, the temperature of the bottle body plastic corresponding to the forming surface is reduced due to the influence of the gas, so that the flowability of the corresponding plastic of the part is reduced, and the strength of the part is reduced; meanwhile, the escaped gas enters the forming surface and acts with the external pressure generated between the forming surface and the die cavity, and the fluidity caused by cooling is reduced, so that the bottle body is not full after blowing is finished, and the defect of the shape is formed.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model provides a can block that gas gets into the profile through the die joint with seal structure, ensure the die cavity structure and the bottle blowing mould of shaping container shaping effect and shaping quality.
The utility model provides a technical scheme that its technical problem adopted is:
the utility model provides a die cavity structure with seal structure, includes two die cavity half moulds of mutually supporting, the die cavity half mould has shaping face and die joint, the upper end of shaping face is equipped with the nip portion, its characterized in that: and a sealing structure is arranged below the clamping opening part of the parting surface and is used for blocking gas from entering the molding surface through the parting surface when the two die cavity half moulds are in a die closing state.
As a further improvement, the seal structure includes a first seal structure and a second seal structure which are respectively located the profile both sides, the first seal structure includes a concave position which is close to the position of the nip portion at the parting surface of one of the mold cavity half-module and is provided with a convex position and corresponds the convex position at another mold cavity half-module, convex position and concave position phase adaptation, be provided with first sealing strip in convex position and/or the concave position, first seal structure transversely extends at the parting surface.
As a further improvement of the utility model, when the convex position is matched with the concave position, the sealing of the part of the concave position in the axial direction is at least provided.
As a further improvement, a sealing gap is formed between the convex position and the concave position for the first sealing strip to be extruded and deformed and filled, and the first sealing strip is filled into the sealing gap.
As a further improvement of the present invention, the top of the protruding portion is provided with an extrusion portion for extruding the first sealing strip to deform the first sealing strip to fill the sealing gap, and the extrusion portion is protruded from the top of the protruding portion.
As a further improvement of the present invention, the second sealing structure is the same as the first sealing structure.
As a further improvement, the convex position of the first sealing structure and the convex position of the second sealing structure are disposed in the same mold cavity half mold, and the concave position of the first sealing structure and the concave position of the second sealing structure are disposed in another mold cavity half mold.
As a further improvement, the convex position of the first sealing structure and the concave position of the second sealing structure are disposed in the same mold cavity half mold, and the concave position of the first sealing structure and the convex position of the second sealing structure are disposed in another mold cavity half mold.
As the utility model discloses further improvement, second seal structure includes that the position that the die joint of its one of them die cavity half mould is close to the nip portion sets up the recess and sets up the second sealing strip in the recess, the second sealing strip is equipped with protrusion in the sealed laminating portion of die joint.
Based on the die cavity structure that has seal structure that the aforesaid provided, the utility model discloses still provide a bottle blowing mould, including die block and foretell die cavity structure, forming container's surface is injectd in die cavity structure and the die block cooperation.
The beneficial effects of the utility model are that: the utility model discloses a set up seal structure in the die joint of die cavity, at the blowing in-process, receive stopping of bottle base support ring and seal structure from the gas of bottle base oral area effusion, can transversely escape along seal structure, avoid getting into the shaping face through the compound die clearance between the die joint, guarantee the shaping effect of bottle, guarantee the structural strength of bottle simultaneously. Additionally, the utility model discloses a first seal structure seals through setting up first sealing strip between protruding position and concave position, and first seal structure transversely extends in the die joint, thereby make the bottle base in the blowing in-process, first seal structure transversely blocks the gas of separating from bottle base oral area effusion, flow direction through changing gas, make and shift out gas and transversely shift out, and at die cavity compound die in-process, under the mating reaction of protruding position and concave position, can realize the compound die location, guarantee that die cavity compound die position is accurate, further guarantee the shaping effect and the shaping quality of bottle.
Drawings
The present invention is further described below with reference to the accompanying drawings and embodiments:
FIG. 1 is a schematic structural view of a prior art mold cavity configuration;
FIG. 2 is a schematic structural view of a cavity structure of the present embodiment;
FIG. 3 is a schematic structural view of the cavity structure of the present embodiment in a clamped state;
FIG. 4 is a schematic view of an installation structure of the first sealing strip in the embodiment where the top of the convex portion is integrally pressed against the concave portion;
FIG. 5 is a schematic view of an installation structure of the present embodiment in which the pressing portion presses the first sealing strip in the concave portion;
FIG. 6 is a schematic diagram of a mold cavity structure in which the first sealing structure and the second sealing structure of the present embodiment have the same structure, and two convex portions are disposed on the same mold cavity half and two concave portions are disposed on the other mold cavity half;
FIG. 7 is a schematic diagram of a mold cavity structure in a case where the first sealing structure and the second sealing structure of the present embodiment adopt different structures;
FIG. 8 is a schematic view of an installation structure of the second sealing strip of the present embodiment in which the cross section is an ellipse and the cross section of the groove is a major elliptical arc;
FIG. 9 is a schematic view of an installation structure of the second sealing strip of this embodiment, in which the cross section of the second sealing strip is triangular and the cross section of the groove is trapezoidal;
FIG. 10 is a schematic view of an installation structure of the second sealing strip of the present embodiment, in which the cross section of the second sealing strip is a trapezoid with an additional arch shape, and the cross section of the groove is a trapezoid;
FIG. 11 is a schematic view of an installation structure of the second sealing strip of the present embodiment in which the cross section is a square additional semicircular protrusion limit and a square additional semicircular groove limit is provided on the cross section of the groove;
FIG. 12 is a schematic view of the mounting structure of the groove section of the present embodiment in a shape that does not restrict the second sealing strip in a direction perpendicular to the parting plane.
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 embodiment is as follows:
as shown in fig. 1 to 12, the present embodiment discloses a mold cavity structure with a sealing structure 5, which includes two mold cavity half molds 1 that are matched with each other, where the mold cavity half molds 1 have a molding surface 2 and a parting surface 3, a clamping opening portion 4 is provided at an upper end of the molding surface 2, a sealing structure 5 is provided below the clamping opening portion 4 of the parting surface 3, the sealing structure 5 is used to block gas from entering the molding surface 2 through the parting surface 3 when the two mold cavity half molds 1 are in a mold closing state, a spacing distance S between one end of the sealing structure 5 close to the molding surface 2 and the molding surface 2 is within a range of 3-6mm, and the other end of the sealing structure 5 extends in the parting surface 3, to a top surface of the mold cavity half mold 1 or to a side surface of the mold cavity half mold 1. In the blowing process, the gas that escapes from the bottle base oral area receives stopping of bottle base support ring and seal structure 5, can transversely escape along seal structure 5, avoids getting into shaping face 2 through the compound die clearance between the die joint 3, guarantees the shaping effect of bottle, guarantees the structural strength of bottle simultaneously. The sealing structure 5 comprises a first sealing structure 51 and a second sealing structure 52 which are respectively positioned at two sides of the molding surface 2, the first sealing structure 51 comprises a convex position 511 arranged at a position, close to the clamping opening part 4, of the parting surface 3 of one mold cavity half die 1 and a concave position 512 arranged at the other mold cavity half die 1 corresponding to the convex position 511, the convex position 511 is matched with the concave position 512, a first sealing strip 513 is arranged in the convex position 511 and/or the concave position 512, and the first sealing structure 51 transversely extends on the parting surface 3. Therefore, in the blowing process of the bottle blank, the first sealing structure 51 transversely blocks the gas escaping from the mouth of the bottle blank, the moving gas is transversely moved out by changing the flow direction of the gas, and in the die cavity die assembly process, under the matching action of the convex position 511 and the concave position 512, the die assembly positioning can be realized, the die assembly position of the die cavity is ensured to be accurate, and the forming effect and the forming quality of the bottle are further ensured.
In a preferred embodiment, when the convex portion 511 is matched with the concave portion 512, a sealing gap 514 for filling the first sealing strip 513 by extrusion deformation is formed between the convex portion 511 and the concave portion 512, and the first sealing strip 513 is filled into the sealing gap 514 to provide sealing of at least a part of the concave portion 512 in the axial direction. The sealing gap 514 is located on the upper side and/or the lower side of the convex position 511, part of the first sealing strip 513 is filled in the sealing gap 514, the convex position 511 and the parting surface 3 can be of an integral structure, and the first sealing strip can be fixed on the parting surface 3 in a post-fixing mode through welding, bolt connection, embedding, material increase and the like. The scheme of the first sealing strip 513 being extruded and deformed to fill the sealing gap 514 can be selected from the following two schemes:
1. the top of the convex portion 511 is wholly pressed against the first sealing strip 513 at the bottom of the concave portion 512, at this time, the sum of the heights of the convex portion 511 and the first sealing strip 513 is greater than the depth of the concave portion 512, for example, the difference between the heights of the convex portion 511 and the first sealing strip 513 is 0.1-3mm, the convex portion 511 presses and deforms the first sealing strip 513, the concave portion 512 is filled with the first sealing strip 513, and meanwhile, part of the first sealing strip 513 is filled into the sealing gap 514, so that the sealing performance of the first sealing structure 51 is better.
2. The top of the convex position 511 is provided with an extruding part 515 which is used for extruding the first sealing strip 513 to enable the first sealing strip 513 to deform and fill the sealing gap 514, the extruding part 515 protrudes from the top of the convex position 511, when the die cavity is closed, the convex position 511 enters the concave position 512, the extruding part 515 is pressed against the first sealing strip 513 at the bottom of the concave position 512 to enable the first sealing strip 513 to deform, so that the first sealing strip 513 fills the sealing gap 514, and preferably, the outer side faces of the extruding parts 515 of the first sealing strip 513 are contacted to seal at least part of the concave position 512 in the axial direction.
In specific implementation, the second sealing structure 52 and the first sealing structure 51 may be configured in the same structure or in different structures. When the second seal structure 52 is the same as the first seal structure 51, there are two embodiments:
1. the convex portion 511 of the first sealing structure 51 and the convex portion 511 of the second sealing structure 52 are disposed in the same cavity mold half 1, and the concave portion 512 of the first sealing structure 51 and the concave portion 512 of the second sealing structure 52 are disposed in the other cavity mold half 1.
2. The convex portion 511 of the first sealing structure 51 and the concave portion 512 of the second sealing structure 52 are disposed in the same cavity mold half 1, and the concave portion 512 of the first sealing structure 51 and the convex portion 511 of the second sealing structure 52 are disposed in the other cavity mold half 1.
When the second seal structure 52 is different from the first seal structure 51, the second seal structure 52 may be the following embodiments: the second sealing structure 52 comprises a groove 521 arranged at a position, close to the nip portion 4, of the parting surface 3 of one of the mold cavity halves 1, and a second sealing strip 522 arranged in the groove 521, wherein the second sealing strip 522 is provided with a sealing attaching portion 523 protruding from the parting surface 3. When the mold is closed, the second sealing strip 522 is pressed against the parting surface 3 of the other cavity half 1, thereby sealing the cavity. On the cross-sectional shape of the groove 521, the cross section of the groove 521 may be an arc, a major elliptical arc, a trapezoid, or the like, which can constrain the shape of the first sealing strip 522 in the direction perpendicular to the parting plane 3, the first sealing strip 522 has a corresponding cross-sectional shape, the first sealing strip 522 is placed in the groove 521, and cannot be removed in the direction perpendicular to the parting plane 3, and the first sealing strip 522 is stably installed; in addition, the cross section of the groove 521 may also be a rectangle or other shapes that cannot constrain the first sealing strip 522 along the direction perpendicular to the parting plane 3, the first sealing strip 522 is provided with pressing edges 524 along both sides of the direction of the groove 521, a pressing sheet 525 is used to press the pressing edges 524, the pressing sheet 525 is provided with a through hole, the bottom of the groove 521 is correspondingly provided with a counter bore, a locking screw 526 is installed in the through hole and the counter bore to fix the pressing sheet 525 to the bottom of the groove 521, further fix the first sealing strip 522 in the groove 521, and the middle of the first sealing strip 522 protrudes out of the parting plane 3.
Based on the mold cavity structure disclosed by the embodiment, the embodiment also discloses a bottle blowing mold, which comprises a bottom mold and the mold cavity structure, wherein the mold cavity structure and the bottom mold are matched to limit the outer surface of the molded container. Two die cavity half-moulds 1 of the die cavity structure are respectively arranged on the two die carriers, and the two die cavity half-moulds 1 are driven to open and close through the two die carriers.
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 seal structure, includes two die cavity half moulds of mutually supporting, the die cavity half mould has profile and die joint, the upper end of profile is equipped with jaw portion, its characterized in that: and a sealing structure is arranged below the clamping opening part of the parting surface and is used for blocking gas from entering the molding surface through the parting surface when the two die cavity half moulds are in a die closing state.
2. The cavity structure with a sealing structure according to claim 1, wherein: the sealing structure comprises a first sealing structure and a second sealing structure which are respectively positioned on two sides of a forming surface, the first sealing structure comprises a convex position and a concave position, the convex position is arranged at a position, close to a clamping opening, of a parting surface of one die cavity half die, the concave position is arranged at the position, corresponding to the convex position, of the other die cavity half die, the convex position is matched with the concave position, a first sealing strip is arranged in the convex position and/or the concave position, and the first sealing structure transversely extends on the parting surface.
3. The cavity structure with a sealing structure according to claim 2, wherein: the male portion and the female portion cooperate to provide at least a partial female seal in an axial direction.
4. A cavity structure with a sealing structure according to claim 3, wherein: a sealing gap for the first sealing strip to be extruded, deformed and filled is formed between the convex position and the concave position, and part of the first sealing strip is filled into the sealing gap.
5. The cavity structure with a sealing structure according to claim 4, wherein: the top of protruding position is equipped with the extrusion portion that is used for extrudeing first sealing strip and makes first sealing strip warp and fill sealed clearance, the extrusion portion is protruding from protruding position top.
6. A cavity structure having a sealing structure according to any one of claims 2 to 5, wherein: the second sealing structure has the same structure as the first sealing structure.
7. The cavity structure with a sealing structure according to claim 6, wherein: the convex position of the first sealing structure and the convex position of the second sealing structure are arranged in the same mold cavity half mold, and the concave position of the first sealing structure and the concave position of the second sealing structure are arranged in the other mold cavity half mold.
8. The cavity structure with a sealing structure according to claim 6, wherein: the convex position of the first sealing structure and the concave position of the second sealing structure are arranged in the same mold cavity half mold, and the concave position of the first sealing structure and the convex position of the second sealing structure are arranged in the other mold cavity half mold.
9. A cavity structure with a sealing structure according to any one of claims 2 to 5, wherein: the second sealing structure comprises a groove and a second sealing strip arranged in the groove, wherein the groove is arranged at a position, close to the clamping opening, of the parting surface of one of the mold cavity half dies, and the second sealing strip is provided with a sealing joint part protruding out of the parting surface.
10. A bottle blowing mold is characterized in that: comprising a bottom mold and the mold cavity structure of any of claims 1-9, the mold cavity structure and the bottom mold cooperating to define an outer surface of a molding container.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220684427.8U CN217196873U (en) | 2022-03-25 | 2022-03-25 | Die cavity structure with sealing structure and bottle blowing die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220684427.8U CN217196873U (en) | 2022-03-25 | 2022-03-25 | Die cavity structure with sealing structure and bottle blowing die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217196873U true CN217196873U (en) | 2022-08-16 |
Family
ID=82756996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220684427.8U Active CN217196873U (en) | 2022-03-25 | 2022-03-25 | Die cavity structure with sealing structure and bottle blowing die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217196873U (en) |
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2022
- 2022-03-25 CN CN202220684427.8U patent/CN217196873U/en active Active
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