CN211807733U - Die holder for reducing resistance of runner of double-tube die - Google Patents
Die holder for reducing resistance of runner of double-tube die Download PDFInfo
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- CN211807733U CN211807733U CN201922323345.1U CN201922323345U CN211807733U CN 211807733 U CN211807733 U CN 211807733U CN 201922323345 U CN201922323345 U CN 201922323345U CN 211807733 U CN211807733 U CN 211807733U
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- flow channel
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- semicircular
- die holder
- resistance
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Abstract
The utility model relates to a tubular product mould technical field, more specifically relates to a reduce die holder of double-barrelled mould runner resistance. The die holder comprises an upper plate and a lower plate which are detachably connected, wherein the lower end face of the upper plate and the upper end face of the lower plate are provided with fishtail-shaped semicircular runners, and the two semicircular runners are matched to form a fishtail-shaped circular runner. The utility model discloses in, form the circular runner of fish tail form after the cooperation of two sets of semi-circular runners, the circular runner of fish tail form is streamlined transition, and the resistance is few, and the melt can be fast through circular runner, and when having avoided long-time production, the deposit appears in the melt, decomposes carbonization phenomenon, has effectively improved production efficiency and qualification rate.
Description
Technical Field
The utility model relates to a tubular product mould technical field, more specifically relates to a reduce die holder of double-barrelled mould runner resistance.
Background
The conventional die head runner of the PVC-U spool double-tube die is a linear Y-shaped runner, the resistance of a PVC melt when entering a die holder runner after being plasticized by a screw extruder is large, the PVC melt is produced for a long time, and the melt is easy to decompose and carbonize due to stagnation, so that the appearance and the performance of a product are influenced.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an it is big to overcome the runner resistance of above-mentioned prior art die holder, causes the melt to decompose carbonization phenomenon because of the stagnation easily to influence the problem of product appearance and performance, provide a die holder that reduces double-barrelled mould runner resistance.
In order to solve the technical problem, the utility model discloses a technical scheme is: the die holder comprises an upper plate and a lower plate which are detachably connected, wherein the lower end face of the upper plate and the upper end face of the lower plate are provided with fishtail-shaped semicircular runners, and the two semicircular runners are matched to form a fishtail-shaped circular runner.
In the technical scheme, the fishtail-shaped circular flow channel is formed after the two groups of semicircular flow channels are matched, the fishtail-shaped circular flow channel is in streamline transition, the resistance is low, the molten material can quickly pass through the circular flow channel, the phenomena of deposition, decomposition and carbonization of the molten material during long-time production are avoided, and the production efficiency and the qualification rate are effectively improved.
Preferably, the semicircular flow channel comprises a first flow channel, a second flow channel and a third flow channel, wherein the first flow channel and the second flow channel are arranged oppositely, and the third flow channel is communicated with the first flow channel and the second flow channel.
Preferably, one end of the first flow channel is provided with a first semicircular structure, one end of the second flow channel is provided with a second semicircular structure, the other end of the first flow channel and the other end of the second flow channel are communicated with one end of the third flow channel, and the other end of the third flow channel is provided with a third semicircular structure.
Preferably, the inner walls of the first flow passage, the second flow passage and the third flow passage are all smooth structures.
Preferably, the first flow channel and the second flow channel are symmetrically arranged, and the third flow channel is arranged on a symmetry axis of the first flow channel and the second flow channel.
Preferably, the joints of the first flow passage, the second flow passage and the third flow passage are in smooth transition.
Preferably, the upper plate and the lower plate are connected through a thread structure, and threaded holes are correspondingly formed in the upper plate and the lower plate and located on two sides of the semicircular flow channel.
Preferably, the upper plate and the lower plate are provided with positioning holes at two sides of the semicircular flow channel correspondingly.
Compared with the prior art, the beneficial effects are:
the utility model discloses in, form the circular runner of fish tail form after the cooperation of two sets of semi-circular runners, the circular runner of fish tail form is streamlined transition, and the resistance is few, and the melt can be fast through circular runner, when having avoided long-time production, the deposit appears in the melt, decomposes carbonization phenomenon, has effectively improved production efficiency and qualification rate.
Drawings
Fig. 1 is a bottom view of an upper plate in the die holder of the present invention;
FIG. 2 is a top view of the lower plate of the die holder of the present invention;
FIG. 3 is a front view of the middle mold base of the present invention;
in the drawings: the structure comprises an upper plate 1, a lower plate 2, a semicircular flow channel 3, a first semicircular structure 5, a second semicircular structure 6, a third semicircular structure 7, a threaded hole 8, a positioning hole 9, a first flow channel 31, a second flow channel 32 and a third flow channel 33.
Detailed Description
The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are the terms "upper", "lower", "left", "right", "long", "short", etc. indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore the terms describing the positional relationship in the drawings are only for illustrative purposes and are not to be construed as limiting the present patent, and those skilled in the art will understand the specific meaning of the terms according to their specific circumstances.
The technical solution of the present invention is further described in detail by the following specific embodiments in combination with the accompanying drawings:
example 1
As shown in fig. 1 to 3, a die holder for reducing flow channel resistance of a double-tube die comprises an upper plate 1 and a lower plate 2 which are detachably connected, wherein fishtail-shaped semicircular flow channels 3 are respectively arranged on the lower end surface of the upper plate 1 and the upper end surface of the lower plate 2, and the two groups of semicircular flow channels 3 are matched to form a fishtail-shaped circular flow channel. The two groups of semicircular runners 3 form a fishtail-shaped circular runner after being matched, the fishtail-shaped circular runner is in streamline transition, the resistance is low, the molten material can quickly pass through the circular runner, the phenomena of deposition, decomposition and carbonization of the molten material during long-time production are avoided, and the production efficiency and the qualified rate are effectively improved. It should be noted that the fishtail structure is similar to the Y-shaped structure, except that the inner wall of the fishtail structure is in streamline transition, and the resistance is small when the molten material flows in the inner wall of the fishtail structure. The melt material enters a fishtail-shaped circular flow channel of the die holder after being extruded from the extruder, and is extruded to the splitter plate and a molding die to extrude a product.
The semicircular flow channel 3 comprises a first flow channel 31, a second flow channel 32 and a third flow channel 33 which is opposite to the first flow channel 31 and the second flow channel 32.
In addition, one end of the first flow channel 31 is provided with a first semicircular structure 5, one end of the second flow channel 32 is provided with a second semicircular structure 6, the other end of the first flow channel 31 and the other end of the second flow channel 32 are communicated with one end of the third flow channel 33, and the other end of the third flow channel 33 is provided with a third semicircular structure 7. It should be noted that the upper plate 1 and the first semicircular structure 5 on the lower plate 2 are matched to form a circular structure, the upper plate 1 and the second semicircular structure 6 on the lower plate 2 are matched to form a circular structure, and the upper plate 1 and the third semicircular structure 7 on the lower plate 2 are matched to form a circular structure.
The inner walls of the first flow channel 31, the second flow channel 32 and the third flow channel 33 are all smooth structures. Here, the inner walls of the first flow channel 31, the second flow channel 32 and the third flow channel 33 are all smooth structures, so that resistance of the melt during passing can be reduced, and the melt can rapidly pass through the mold base.
The first flow channel 31 and the second flow channel 32 are symmetrically disposed, and the third flow channel 33 is disposed on the symmetry axis of the first flow channel 31 and the second flow channel 32.
The joints of the first flow passage 31, the second flow passage 32 and the third flow passage 33 are in smooth transition. In addition, the arrangement can reduce the resistance of the molten material when the molten material passes through, so that the molten material can rapidly pass through the die holder.
In addition, the upper plate 1 is connected with the lower plate 2 through a thread structure, and threaded holes 8 are correspondingly formed in the upper plate 1 and the lower plate 2 and located on two sides of the semicircular flow channel 3. The upper plate 1 and the lower plate 2 are connected through the threaded holes 8 and the screws, so that the upper plate 1 and the lower plate 2 can be conveniently mounted and dismounted.
And positioning holes 9 are correspondingly formed in the upper plate 1 and the lower plate 2 and positioned at two sides of the semicircular flow channel 3. In this embodiment, the setting of locating hole 9 is convenient for the installation between upper plate 1 and hypoplastron 2, guarantees the installation accuracy of upper plate 1 and hypoplastron 2 in the installation, guarantees that the semicircular runner 3 of upper plate 1, hypoplastron 2 does not have the dislocation phenomenon, stops the burning material that the dislocation problem arouses, causes the production waste product.
It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (8)
1. The utility model provides a reduce die holder of double-barrelled mould runner resistance which characterized in that: the fishtail-shaped circular flow channel structure comprises an upper plate (1) and a lower plate (2) which are detachably connected, wherein the lower end face of the upper plate (1) and the upper end face of the lower plate (2) are respectively provided with a fishtail-shaped semicircular flow channel (3), and the two semicircular flow channels (3) are matched to form the fishtail-shaped circular flow channel.
2. The die holder for reducing the flow resistance of a double tube die as set forth in claim 1, wherein: the semicircular flow channel (3) comprises a first flow channel (31), a second flow channel (32) and a third flow channel (33) which is communicated with the first flow channel (31) and the second flow channel (32).
3. The die holder for reducing the flow resistance of a dual tube die as set forth in claim 2, wherein: one end of the first flow channel (31) is provided with a first semicircular structure (5), one end of the second flow channel (32) is provided with a second semicircular structure (6), the other end of the first flow channel (31) and the other end of the second flow channel (32) are communicated with one end of a third flow channel (33), and the other end of the third flow channel (33) is provided with a third semicircular structure (7).
4. The die holder for reducing the flow resistance of a dual tube die as set forth in claim 2, wherein: the inner walls of the first flow passage (31), the second flow passage (32) and the third flow passage (33) are all of smooth structures.
5. The die holder for reducing the flow resistance of a dual tube die as set forth in claim 2, wherein: the first flow channel (31) and the second flow channel (32) are symmetrically arranged, and the third flow channel (33) is arranged on the symmetry axis of the first flow channel (31) and the second flow channel (32).
6. The die holder for reducing the runner resistance of a double tube die as set forth in claim 5, wherein: the joints of the first flow passage (31), the second flow passage (32) and the third flow passage (33) are in smooth transition.
7. The die holder for reducing the flow resistance of a dual tube die as set forth in claim 1, wherein: the upper plate (1) is connected with the lower plate (2) through a thread structure, and threaded holes (8) are correspondingly formed in the upper plate (1) and the lower plate (2) and located on two sides of the semicircular flow channel (3).
8. The die holder for reducing the flow resistance of a dual tube die of claim 7, wherein: the upper plate (1) and the lower plate (2) are correspondingly provided with positioning holes (9) at two sides of the semicircular flow channel (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922323345.1U CN211807733U (en) | 2019-12-20 | 2019-12-20 | Die holder for reducing resistance of runner of double-tube die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922323345.1U CN211807733U (en) | 2019-12-20 | 2019-12-20 | Die holder for reducing resistance of runner of double-tube die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211807733U true CN211807733U (en) | 2020-10-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922323345.1U Active CN211807733U (en) | 2019-12-20 | 2019-12-20 | Die holder for reducing resistance of runner of double-tube die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211807733U (en) |
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2019
- 2019-12-20 CN CN201922323345.1U patent/CN211807733U/en active Active
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