CN217318938U - Confluence core for PVC foaming board die - Google Patents
Confluence core for PVC foaming board die Download PDFInfo
- Publication number
- CN217318938U CN217318938U CN202123252808.3U CN202123252808U CN217318938U CN 217318938 U CN217318938 U CN 217318938U CN 202123252808 U CN202123252808 U CN 202123252808U CN 217318938 U CN217318938 U CN 217318938U
- Authority
- CN
- China
- Prior art keywords
- waist groove
- core
- waist
- confluence
- groove
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model discloses a PVC foaming board is confluence core for mould, the package core comprises a core body, the inside at least two feed channels that are provided with of core, the feed channel merges at the core other end and forms the discharge way, the discharge way both sides are provided with first waist groove and second waist groove respectively, second waist groove (4) in first waist groove all are provided with inflation locking structure. The utility model discloses a reform transform into the waist slotted hole with circular location pinhole, not only can prevent circumferential direction, can also prevent that the barrel locating pin is because the unsafe factor of machining precision is different with each barrel producer barrel locating pin size, unable and pinhole cooperation.
Description
Technical Field
The utility model relates to a part for the extrusion moulding equipment especially relates to a PVC foaming board confluence core for mould.
Background
The confluence core is an indispensable part in the conical double-extruder, and is connected with a machine barrel of the extruder in the use process, and is positioned by a counter bore and a boss of the machine barrel and prevented from rotating so as to ensure that the machine barrel and a confluence core flow passage can be normally butted well.
However, in the actual production and use process, because of the machining precision and errors of the positioning pins of the cylinder manufacturers and the positioning pin holes of the confluence core manufacturers, the position sizes of the positioning pins of the cylinders of the cylinder manufacturers are different, the cylinder positioning pins cannot be matched, and the confluence core cannot be correctly installed and used.
Disclosure of Invention
According to the technical problem to be solved, the confluence core for the PVC foaming board die is provided.
In order to realize the above-mentioned purpose, the utility model discloses a PVC foaming board is confluence core for mould, the package core comprises a core body, the inside at least two feed passages that are provided with of core, the feed passage merges at the core other end and forms the ejection of compact way, ejection of compact way both sides are provided with first waist groove and second waist groove respectively, the second waist groove in first waist groove all is provided with inflation locking structure.
Furthermore, the expansion locking structure comprises a hydraulic oil hole and an oil cavity, the oil cavity is located in the core body and surrounds the waist groove, the oil cavity is not communicated with the notch of the waist groove, the hydraulic oil hole is communicated with the oil cavity, and a thin wall is arranged between the oil cavity and the waist groove.
Furthermore, the thickness of the thin wall at the straight edge is one third of that of the circular arc thin wall.
Furthermore, the thin wall at the straight edge is provided with a plurality of bulges on the waist groove surface.
Furthermore, the distance between the centers of the first waist groove and the second waist groove is 6-12mm, and the width is 16.0-16.1 mm.
Furthermore, the center-to-center distance between the first waist groove and the second waist groove is 10mm in length, and the width is 16.1mm
Furthermore, the included angle between the merging ends of the feeding channels is 30 degrees.
Has the advantages that: the utility model discloses a PVC foaming board is confluence core for mould, through changing into the waist slotted hole with circular locating pin hole, not only can prevent circumferential rotation, can also prevent the barrel locating pin because of the inaccurate factor of machining precision, and also the barrel locating pin position size of each barrel producer is different, can't cooperate with confluence core pin hole; the expansion locking structure arranged in the waist groove can reduce the risk of falling off from the machine barrel.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a structural diagram of the present invention.
Fig. 2 is a side view of the present invention.
Fig. 3 is a cross-sectional view of the present invention taken along line D-D.
Fig. 4 is a cross-sectional view of the present invention taken along line E-E.
In the figure: 1 is a core body; 2 is a first waist groove; 3 is a feeding channel; 4 is a second waist groove; 5 is a discharging channel; 6 is a hydraulic oil hole; and 7 is an oil chamber.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the scope of the present invention.
As shown in fig. 1-4, the confluence core for the PVC foam board mold comprises a core body, wherein at least two feeding channels 3 are arranged inside the core body 1, the feeding channels 3 are combined at the other end of the core body 1 to form a discharging channel 5, a first waist groove 2 and a second waist groove 4 are respectively arranged at two sides of the discharging channel 5, and the second waist groove 4 of the first waist groove 2 is provided with an expansion locking structure.
Wherein, during the combination, first waist groove 2 and/or second waist groove 4 on the core 1 cup joint in the locating pin on the barrel to fasten all around through the bolt, first waist groove 2 and second waist groove 4 play limiting displacement on the one hand, prevent circumferential direction, on the other hand plays and compensaties barrel locating pin position degree, machining precision and error action, after the locating pin got into in first waist groove 2 and/or the second waist groove 4, inflation locking mechanism passed through injection hydraulic oil extrusion thin wall and then increaseed the laminating dynamics with the locating pin.
The expansion locking structure comprises a hydraulic oil hole 6 and an oil cavity 7, wherein the oil cavity 7 is positioned in the core body 1 and surrounds the waist groove, the oil cavity 7 is not communicated with the notch of the waist groove, the hydraulic oil hole 6 is communicated with the oil cavity 7, and a thin wall is arranged between the oil cavity 7 and the waist groove.
Wherein the thin wall can be expanded quickly after hydraulic oil is injected into the oil cavity 7.
The thickness of the thin wall at the straight edge is one third of that of the arc thin wall, so that the elasticity required by expansion can be met, and oil can be prevented from entering the notch.
The thin wall at the straight edge is provided with a plurality of bulges on the surface of the waist groove, so that the friction force is increased through the bulges, and the connection between the waist groove and the positioning pin is enhanced.
The first waist groove 2 and the second waist groove 4 are 6-12mm in length and 16.0-16.1mm in width.
The first waist groove 2 and the second waist groove 4 are 10mm in length and 16.1mm in width.
The distance between the first waist groove 2 and the second waist groove 4 is the same, so that the universality of the upper and lower 180-degree rotary installation of the confluence core is ensured, the length of the first waist groove 2 and the second waist groove 4 is set to be 6-10mm, and the width of the first waist groove 2 and the second waist groove 4 is set to be 16.0-16.1mm, so that the positioning pin can still be matched with the positioning pin when the processing precision is insufficient and has an error in the processing process or when the positions of the positioning pins of the machine barrel are different.
The included angle between the merging ends of the feeding channels 3 is 30 degrees.
Wherein, the included angle of the merging end of the feeding channel 3 is set to be 30 degrees, so that the material can have a better compression ratio.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities.
The above examples are merely illustrative of the present invention and should not be construed as limiting the scope of the present invention, and all designs identical or similar to the present invention are within the scope of the present invention.
Claims (7)
1. The utility model provides a PVC foaming board confluence core for mould, includes the core, its characterized in that: the core body (1) is inside to be provided with two at least feed channels (3), feed channel (3) merge at the core body (1) other end and form out material way (5), it says (5) both sides and is provided with first waist groove (2) and second waist groove (4) respectively to go out material, second waist groove (4) of first waist groove (2) all are provided with inflation locking structure.
2. The confluence core for PVC foam board mold as claimed in claim 1, wherein: the expansion locking structure comprises a hydraulic oil hole (6) and an oil cavity (7), wherein the oil cavity (7) is located in the core body (1) and surrounds the waist groove, the oil cavity (7) is not communicated with the opening of the waist groove, the hydraulic oil hole (6) is communicated with the oil cavity (7), and a thin wall is arranged between the oil cavity (7) and the waist groove.
3. The confluence core for PVC foam board mold as set forth in claim 2, wherein: the thickness of the thin wall at the straight edge is one third of that of the circular arc thin wall.
4. The confluence core for a mold of PVC foaming board according to claim 3, wherein: the thin wall at the straight edge is provided with a plurality of bulges on the waist groove surface.
5. The confluence core for a PVC foam board mold as set forth in claim 1, wherein: the center distance between the first waist groove (2) and the second waist groove (4) is 6-12mm in length, and the width is 16.0-16.1 mm.
6. The confluence core for a mold of PVC foaming board according to claim 5, wherein: the length of the center distance between the first waist groove (2) and the second waist groove (4) is 10mm, and the width of the first waist groove and the second waist groove is 16.1 mm.
7. The confluence core for PVC foam board mold as claimed in claim 1, wherein: the included angle between the merging ends of the feeding channels (3) is 30 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123252808.3U CN217318938U (en) | 2021-12-22 | 2021-12-22 | Confluence core for PVC foaming board die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123252808.3U CN217318938U (en) | 2021-12-22 | 2021-12-22 | Confluence core for PVC foaming board die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217318938U true CN217318938U (en) | 2022-08-30 |
Family
ID=82989485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123252808.3U Active CN217318938U (en) | 2021-12-22 | 2021-12-22 | Confluence core for PVC foaming board die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217318938U (en) |
-
2021
- 2021-12-22 CN CN202123252808.3U patent/CN217318938U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101678594B (en) | Method for the production of a container made of thermoplastic plastic by extrusion blow molding and connection element for use in such a method | |
| CN108405824B (en) | Special structure of extrusion pin of die casting mold | |
| CN217318938U (en) | Confluence core for PVC foaming board die | |
| US5773109A (en) | Hollow, resin mechanical part having a shaft integrally formed therewith and an injection molding method for producing the same | |
| WO1996012613A1 (en) | Blow injection molding method of integral shaft type body of rotation, and blow molded product | |
| KR920005525B1 (en) | Plastic molded product | |
| CN210061698U (en) | Rubber sealing element mould | |
| CN217346448U (en) | Prevent into gluey ox horn and go out unedged mould | |
| CN102458793B (en) | Method for producing molded article and molding device | |
| CN219600235U (en) | Injection mold | |
| CN218083864U (en) | Double-colored injection molding machine fixed die plate | |
| CN214562565U (en) | Template, mould and injection molding machine | |
| CN205467091U (en) | Mechanism of loosing core of oblique slider of slider upper band | |
| CN216139331U (en) | Anti-collision mold | |
| JPS62227715A (en) | Injection mold | |
| CN111266463A (en) | Novel inner star wheel forming die structure | |
| CN218985564U (en) | Injection mold | |
| CN214294216U (en) | Injection mold of combined lamp body | |
| CN217777569U (en) | Double-color double-mold structure | |
| CN211165052U (en) | Automobile mould down tube hole precision finishing mechanism | |
| EP0927618A1 (en) | Metal mold for producing a synthetic resin molded product free of burrs | |
| CN219171512U (en) | Iron core section injection mold roof fixed establishment | |
| CN114750361B (en) | Sealing rubber insert structure of double-color mold and use method thereof | |
| EP1839838B1 (en) | Ejecting apparatus for an injection molding machine | |
| CN213947382U (en) | High-wear-resistance rubber extrusion die |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |