CN212528627U - Parallel multi-outlet extrusion flow channel - Google Patents
Parallel multi-outlet extrusion flow channel Download PDFInfo
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- CN212528627U CN212528627U CN202021292493.8U CN202021292493U CN212528627U CN 212528627 U CN212528627 U CN 212528627U CN 202021292493 U CN202021292493 U CN 202021292493U CN 212528627 U CN212528627 U CN 212528627U
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Abstract
The utility model discloses a parallel many exports extrude runner, including cope match-plate pattern and lower bolster, cope match-plate pattern and lower bolster are connected, wherein: an inlet area, a pre-distribution area, a partition area and an outlet area are respectively arranged between the upper template and the lower template, the inlet area, the pre-distribution area, the partition area and the outlet area are sequentially connected, the inlet area is located at the top end of the pre-distribution area, the partition area is located at the tail end of the pre-distribution area, and the pre-distribution area is communicated with the outlet area. The utility model has the advantages that: the structure can uniformly distribute the melt in the pre-distribution area by using the pre-distribution area and the partition area in a combined way, and the melt is divided into a plurality of material flows by the partition area according to the proportion to be extruded out, so that the design of the pre-distribution area is simplified, the length of the pre-distribution area is shortened, and the whole volume is reduced.
Description
Technical Field
The utility model relates to a plastics extrusion tooling technical field, concretely relates to parallel many exports extrude runner.
Background
In the field of plastic extrusion hollow molding, in some cases, one extruder simultaneously extrudes a plurality of parisons, and the parisons enter a plurality of die cavities to be synchronously cooled and molded into a plurality of same products. The process of forming a plurality of parisons from a plastic melt in an extruder is carried out in an extrusion die comprising two parts: an inlet, a plurality of outlet branching portions and a plurality of parison forming portions of identical construction, the inlet of each parison forming portion being connected to one outlet of the branching portions.
Since multiple cavities are operating simultaneously, multiple parison extrusion rates are required to be consistent. Besides installing a throttling device at each outlet area of the flow dividing channel, the flow dividing is uniform, and if the speed difference of the outlets is too large, the throttling device is difficult to adjust. Therefore, the flow dividing channels are generally designed in a way of 1/2, 2/4, 4/8. When the number of parisons is 3, 5, 6, 7, 9, 10, it is difficult for the flow channel itself to ensure a uniform parison outlet flow rate, and the difficulty of adjusting the restriction device increases. When the number of parisons exceeds 10, especially a prime number, the split runner becomes very long and the runner design becomes very difficult.
Disclosure of Invention
The utility model discloses solve foretell technical problem and provide one kind and can distribute the fuse-element evenly in pre-distribution district to implement through the subregion and divide into the stranded material stream in proportion and extrude, thereby make pre-distribution district design simplification and shorten pre-distribution district length, make the parallel multi-outlet's of whole volume reduction effect the runner of extruding.
According to the utility model discloses an it is so realized: the extrusion runner of parallel many exports, including cope match-plate pattern and lower bolster, cope match-plate pattern and lower bolster are connected, wherein: an inlet area, a pre-distribution area, a partition area and an outlet area are respectively arranged between the upper template and the lower template, the inlet area, the pre-distribution area, the partition area and the outlet area are sequentially connected, the inlet area is located at the top end of the pre-distribution area, the partition area is located at the tail end of the pre-distribution area, and the pre-distribution area is communicated with the outlet area.
Particularly, a corner part is arranged between the dividing regions.
Specifically, screws are arranged between the upper template and the lower template, and the screws are respectively distributed at the edge of the pre-distribution area and the position between the partition areas.
The upper template is provided with a positioning pin, and two ends of the positioning pin are respectively inserted into the upper template and the lower template.
Specifically, the pre-distribution area is in any one of a clothes hanger shape, a T shape, a fishtail shape and a heart shape.
Specifically, the cross section of the outlet area is one of a circle, a square, a flat and a trapezoid.
Specifically, the inlet area, the pre-distribution area, the partition area and the outlet area are arranged on a plane.
The utility model has the advantages that: the structure can uniformly distribute the melt in the pre-distribution area by using the pre-distribution area and the partition area in a combined way, and the melt is divided into a plurality of material flows by the partition area according to the proportion to be extruded out, so that the design of the pre-distribution area is simplified, the length of the pre-distribution area is shortened, and the whole volume is reduced.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings.
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is the connecting structure schematic diagram of the upper template and the lower template of the utility model.
The reference numerals as shown in the drawings are as follows:
the device comprises an inlet area 1, a pre-distribution area 2, a partition area 3, an outlet area 4, an upper template 5, a lower template 6, screws 7 and positioning pins 8.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
The following describes the extrusion runner with multiple outlets in parallel according to the embodiment of the present invention with reference to fig. 1 to 2, including an upper template 5 and a lower template 6, where the upper template 5 and the lower template 6 are connected, where: an inlet area 1, a pre-distribution area 2, a partition area 3 and an outlet area 4 are respectively arranged between the upper template 5 and the lower template 6, the inlet area 1, the pre-distribution area 2, the partition area 3 and the outlet area 4 are sequentially connected, the inlet area 1 is located at the top end of the pre-distribution area 2, the partition area 3 is located at the tail end of the pre-distribution area 2, and the pre-distribution area 2 is communicated with the outlet area 4.
The structure is used by combining the pre-distribution area 2 and the partition area 3, wherein the inlet area 1 is connected with an extruder, the outlet area 4 is connected with a parison, the extruder can uniformly distribute melt in the pre-distribution area, the pre-distribution area is uniformly dispersed, and the partition area is used for dividing the melt into a plurality of material flows in proportion to extrude, and the material flows respectively enter the parison and are formed, so that the design of the pre-distribution area 2 is simplified, the length of the pre-distribution area 2 is shortened, and the whole volume is reduced.
The outlet area 4 has no quantity limitation in the structure, and the total length of the predistribution area 2 is shorter, so that the upper template 5 and the lower template 6 have smaller volume and lighter weight. When the number of the parisons is odd or even prime, the structure can ensure that the material flow velocity in each parison is consistent. The more the number of the parisons of the structure is, the more obvious the advantages of the structure are.
Between the partition areas 3, a corner portion 301 is provided. The corner 301 is acute or obtuse. The corner 301 divides the flow so that it is extruded into the outlet zone 4. In addition, a screw 7 is arranged between the upper template 5 and the lower template 6, and the screws 7 are respectively distributed at the edge of the pre-distribution area 2 and the position between the partition areas 3. The screws 7 can fix the upper template 5 and the lower template 6 together, and the distribution of the screws 7 is beneficial to stress dispersion and melt leakage. Furthermore, the upper template 5 is provided with a positioning pin 8, and two ends of the positioning pin 8 are respectively inserted into the upper template 5 and the lower template 6. The positioning pins 8 are used for positioning to displace the upper template 5 or the lower template 6.
The pre-distribution area 2 of the utility model is one of a clothes hanger shape, a T shape, a fish tail shape and a heart shape. The outlet area 4 is one of circular, square, flat and trapezoidal in cross section. The inlet area 1, the pre-distribution area 2, the partition area 3 and the outlet area 4 are arranged on a plane.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (7)
1. Parallel many exports extrude runner, including cope match-plate pattern (5) and lower bolster (6), cope match-plate pattern (5) are connected with lower bolster (6), its characterized in that: be equipped with between cope match-plate pattern (5) and lower bolster (6) respectively and distinguish (1), pre-distribution district (2), subregion (3) and export district (4), entrance district (1), pre-distribution district (2), subregion (3) and export district (4) are connected gradually, entrance district (1) is located the top position of pre-distribution district (2), subregion (3) is located the tail end position of pre-distribution district (2), pre-distribution district (2) is linked together with export district (4).
2. The parallel multi-outlet extrusion flow channel of claim 1, wherein: a corner (301) is arranged between the divided areas (3).
3. The parallel multi-outlet extrusion flow channel of claim 1, wherein: screws (7) are arranged between the upper template (5) and the lower template (6), and the screws (7) are respectively distributed at the positions between the edge of the pre-distribution area (2) and the dividing area (3).
4. The parallel multi-outlet extrusion flow channel of claim 1, wherein: the upper die plate (5) is provided with a positioning pin (8), and two ends of the positioning pin (8) are respectively inserted into the upper die plate (5) and the lower die plate (6).
5. The parallel multi-outlet extrusion flow channel of claim 1, wherein: the pre-distribution area (2) is in any one of a clothes hanger shape, a T shape, a fishtail shape and a heart shape.
6. The parallel multi-outlet extrusion flow channel of claim 1, wherein: the cross section of the outlet area (4) is one of circular, square, flat and trapezoidal.
7. The parallel multi-outlet extrusion flow channel of claim 1, wherein: the inlet area (1), the pre-distribution area (2), the partition area (3) and the outlet area (4) are arranged on the same plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021292493.8U CN212528627U (en) | 2020-07-06 | 2020-07-06 | Parallel multi-outlet extrusion flow channel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021292493.8U CN212528627U (en) | 2020-07-06 | 2020-07-06 | Parallel multi-outlet extrusion flow channel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212528627U true CN212528627U (en) | 2021-02-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021292493.8U Active CN212528627U (en) | 2020-07-06 | 2020-07-06 | Parallel multi-outlet extrusion flow channel |
Country Status (1)
| Country | Link |
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| CN (1) | CN212528627U (en) |
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2020
- 2020-07-06 CN CN202021292493.8U patent/CN212528627U/en active Active
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