CN215151700U - Combined structure of barrel screw - Google Patents
Combined structure of barrel screw Download PDFInfo
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- CN215151700U CN215151700U CN202121203032.3U CN202121203032U CN215151700U CN 215151700 U CN215151700 U CN 215151700U CN 202121203032 U CN202121203032 U CN 202121203032U CN 215151700 U CN215151700 U CN 215151700U
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- feeding
- screw
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Abstract
The utility model provides a composite structure of barrel screw rod, includes barrel and two conical screw, is provided with awl biperforations in barrel middle part axial, and the screw rod includes the body of rod and spiral shell arris, and the spiral shell arris divide into feed zone, melting section and ejection of compact section, and the body of rod and spiral shell arris are by length-diameter ratio be 1:26, the blank is a conical body, the two ends of the conical body are planes with circular cross sections, the diameter of a tail end plane circle is 2 times of that of a top end plane circle, the middle of the top end plane is provided with a conical head, the middle of the tail end plane is provided with a transmission convex column, annular grooves are axially distributed on the outer surface of the conical body at intervals, the outer surface of the conical body which is 0-200 mm away from the tail end plane is a polishing section which is formed by inward grinding by 0.5mm through a grinding device, and the polishing section is in smooth transition with the rest parts of the outer surface of the conical body. The utility model has the advantages that: the feeding is smooth, the blocking condition at the feeding end is avoided, and the material handling capacity is large.
Description
Technical Field
The utility model relates to an injection molding machine preparation technical field especially indicates a integrated configuration of a section of thick bamboo screw rod.
Background
The prior Chinese utility model patent with the application number of CN201420226723.9 entitled tapered twin-screw of a machine barrel discloses a tapered twin-screw of a machine barrel, which comprises a screw rod body; the two ends of the screw rod body are respectively a big end and a small end; the screw rod body consists of 5 screw rod sections with different screw pitches; the screw section is arranged between the large end and the small end; the size of the big end is 66.88 mm; the size of the small end is 29.7-29.9 mm. The conical double screw of the machine barrel of the utility model increases the size of the big end and slightly reduces the size of the small end, thereby improving the compression ratio of the screw; the existing machine can be used without great change, thereby improving the plasticizing performance and accelerating the production efficiency. However, the screw rib at the feeding part of the conical twin screw is easy to cause blockage when the screw rib is matched with the inner hole of the cylinder due to the larger diameter, so the structure of the conical twin screw needs to be further improved.
Disclosure of Invention
The utility model aims to solve the technical problem that it is smooth to provide a feeding to above-mentioned prior art current situation, avoids the feed end putty condition to take place, and the integrated configuration of the big barrel screw rod of material handling capacity.
The utility model provides a technical scheme that above-mentioned technical problem adopted does: this integrated configuration of barrel screw rod, including barrel and two toper screw rods, be provided with the awl double-pass hole that can pass the screw rod in barrel middle part axial, the screw rod includes the body of rod and sets up the spiral shell arris on body of rod surface, the spiral shell arris divide into feed section, melting section and ejection of compact section, its characterized in that: the rod body and the screw arrises are formed by a length-diameter ratio of 1:26, the blank is a conical body, the two ends of the conical body are planes with circular cross sections, the diameter of a tail end plane circle is 2 times of that of a top end plane circle, a conical head is arranged in the middle of the top end plane, a transmission convex column is arranged in the middle of the tail end plane, annular grooves for segmented processing are axially distributed on the outer surface of the conical body at intervals, a polishing section which is formed by inwards grinding the outer surface of the conical body 0-200 mm away from the tail end plane by a grinding device is arranged on the outer surface of the conical body, and the polishing section is in smooth transition with the rest parts of the outer surface of the conical body.
As an improvement, the feeding section is a double-spiral edge, the feeding section comprises a feeding section, a feeding section and a feeding section, the feeding section and the feeding section are sequentially connected end to end, and the spiral edge intervals of the feeding section, the feeding section and the feeding section are sequentially reduced.
The melting section comprises a melting section, a melting section and a melting section, wherein the melting section, the melting section and the melting section are single spiral edges, the melting section is a triple spiral edge, the melting section and the melting section are connected together end to end, and the melting section, the melting section and the melting section are sequentially arranged in a separated mode.
Further improved, the tail part of the first melting section and the second melting section are provided with reflux grooves.
The discharging section comprises a first discharging section, a second discharging section and a third discharging section, the first discharging section, the second discharging section and the third discharging section are sequentially connected end to end, and the distances between the spiral edges of the first discharging section, the second discharging section and the third discharging section are sequentially increased.
Further improvement, the widths of the spiral edges of the first discharging section, the second discharging section and the third discharging section are sequentially increased.
As an improvement, the machine barrel consists of a machine barrel section, a machine barrel section and a machine barrel section, wherein an air outlet of the machine barrel is positioned at the joint of the machine barrel section and the machine barrel section, an alloy layer is arranged on the inner wall of the machine barrel section, corresponding alloy sleeves are arranged in inner holes of the machine barrel section and the machine barrel section in a penetrating mode, and a temperature control pipe installation groove is arranged on the outer wall of the machine barrel section.
In a further refinement, the barrel section includes a first barrel section and a second barrel section, the diameter of the first barrel section being greater than the diameter of the second barrel section.
In a further improvement, the three cylinder sections comprise a third cylinder section and a fourth cylinder section, the diameter of the third cylinder section is larger than that of the fourth cylinder section, and the temperature control pipe installation groove is formed in the fourth cylinder section.
In a further improvement, the temperature control pipe mounting groove is a spiral groove.
Compared with the prior art, the utility model has the advantages of: the blank with the length-diameter ratio of 1:26 is adopted for screw processing, the prepared screw is longer, the retention time of materials on the screw can be prolonged, the combined structure of the machine barrel screw can process more materials in the same time, and the material processing efficiency is improved; directly set up the polishing section on the idiosome, need not to handle on the screw rod that makes, processing operation is simpler to the feed end screw thread arris diameter ratio of the screw rod that obtains through the idiosome preparation is less than 0.5mm than prior art, can effectively avoid screw thread arris shutoff barrel inner chamber, avoids the feed end putty condition to take place, realizes smooth feeding.
Drawings
FIG. 1 is a sectional view of a blank for manufacturing a screw rod along a plane of a central axis according to an embodiment of the present invention;
FIG. 2 is a front perspective view of the screw made in FIG. 1;
FIG. 3 is a front perspective view of the cooperating barrel of FIG. 2;
FIG. 4 is a side elevational view of FIG. 3;
FIG. 5 is another side elevational view of FIG. 3;
fig. 6 is an enlarged view of a portion I in fig. 2.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments.
As shown in fig. 1 to 6, the combined structure of barrel screw of this embodiment includes a barrel and two conical screws, a conical double-pass hole 32 capable of passing through the screws is axially arranged in the middle of the barrel, the screws include a rod body 1 and a screw rib arranged on the surface of the rod body 1, the screw rib is divided into a feeding section a, a melting section B and a discharging section C, the rod body 1 and the screw rib are formed by a length-diameter ratio of 1:26, the blank 2 is a conical body, the two ends of the conical body are planes with circular cross sections, the diameter of a tail end plane circle is 2 times of that of a top end plane circle, the middle of the top end plane is provided with a conical head 21, the middle of the tail end plane is provided with a transmission convex column 22, annular grooves 23 for subsection processing are axially distributed on the outer surface of the conical body at intervals, the outer surface of the conical body which is 0-200 mm away from the tail end plane is a polishing section D which is formed after being inwardly ground by a grinding device by 0.5mm, and the polishing section D is in smooth transition with the rest parts of the outer surface of the conical body. The aspect ratio is the ratio of the diameter of the top plane of the cone to the axial length of the cone. The length of the screw is 3593mm, wherein the length of the screw ridge section is 3225 mm. The length of the conical head 21 is 53 mm. The width of the annular groove 23 is 28 mm.
The feeding section A is double spiral ribs, the feeding section A comprises a feeding section A1, a feeding section A2 and a feeding section A3, the feeding section A1, the feeding section A2 and the feeding section A3 are sequentially connected end to end, and the spiral rib intervals of the feeding section A1, the feeding section A2 and the feeding section A3 are sequentially reduced. The length of the feed section A1 was 490mm, the length of the feed section A2 was 250mm, and the length of the feed section A3 was 265 mm. The pitch L1 of the flights of the first feeding section is 42.5mm, the pitch L2 of the flights of the second feeding section is 36mm, and the pitch L3 of the flights of the third feeding section is 32 mm. The screw width K1 of the feeding first section is 12.8mm, the screw width K2 of the feeding second section is 10.5mm, and the screw width K3 of the feeding third section is 9.7 mm.
The melting section B comprises a melting section B1, a melting section B2, a melting section B3 and a melting section B4, the melting section B1, the melting section B2 and the melting section B3 are single spiral edges, the melting section B4 is a triple spiral edge, the melting section B1 and the melting section B2 are connected together end to end, and the melting section B2, the melting section B3 and the melting section B4 are sequentially arranged in a separated mode. A reflux groove 11 is provided at the tail of the first melting section B1 and the second melting section B2. The length L4 of the reflux groove 11 was 380mm, the flight width K4 of the three melted segments was 16.3mm, and the flight pitch L5 of the three melted segments was 48 mm. The width K5 of the flight of the four melted sections was 21.7mm, and the pitch L6 of the flight of the four melted sections was 78 mm.
The discharging section C is a three-spiral-edge structure, the discharging section C comprises a discharging section C1, a discharging section C2 and a discharging section C3, the discharging section C1, the discharging section C2 and the discharging section C3 are sequentially connected end to end, and the spiral-edge intervals of the discharging section C1, the discharging section C2 and the discharging section C3 are sequentially increased. The screw widths of the first discharging section C1, the second discharging section C2 and the third discharging section C3 are increased in sequence. The pitch L7 of the screw ribs of the first discharging section is 42.5mm, the pitch L8 of the screw ribs of the second discharging section is 36mm, and the pitch L9 of the screw ribs of the third discharging section is 32 mm. The screw width K6 of the first discharging section is 12.8mm, the screw width K7 of the second discharging section is 10.5mm, and the screw width K8 of the third discharging section is 9.7mm
The machine barrel consists of a machine barrel section E, a machine barrel section F and a machine barrel section G, an air outlet of the machine barrel is positioned at the joint of the machine barrel section F and the machine barrel section G, an alloy layer is arranged on the inner wall of the machine barrel section E, corresponding alloy sleeves 33 are arranged in inner holes of the machine barrel section F and the machine barrel section G in a penetrating mode, and a temperature control pipe installation groove 31 is arranged on the outer wall of the machine barrel section G. The barrel section F includes a first barrel section F1 and a second barrel section F2, the first barrel section F1 having a diameter greater than the diameter of the second barrel section F2. The three cylinder sections G comprise a third cylinder section G1 and a fourth cylinder section G2, the diameter of the third cylinder section G1 is larger than that of the fourth cylinder section G2, and the temperature control pipe installation groove 31 is arranged on the fourth cylinder section G2. The temperature control pipe installation groove 31 is a spiral groove. The length of the first barrel section E is 915mm, the length of the second barrel section F is 1035mm, the length of the third barrel section G is 1320mm, the length of the first barrel section F1 is 560mm, the length of the fourth barrel section G2 is 680mm, the aperture of the conical double through hole on one side of the feed port of the barrel is 232.68mm, and the aperture of the conical double through hole on one side of the discharge port of the barrel is 115 mm.
Claims (10)
1. The utility model provides a composite structure of barrel screw rod, includes barrel and two conical screw rod, is provided with awl double-through hole (32) that can pass the screw rod in barrel middle part axial, the screw rod includes the body of rod (1) and sets up the spiral shell arris on body of rod (1) surface, the spiral shell arris divide into feed section (A), melting section (B) and ejection of compact section (C), its characterized in that: the rod body (1) and the screw edges are formed by a structure that the length-diameter ratio is 1:26, the blank body (2) is a conical body, the two ends of the conical body are planes with circular cross sections, the diameter of a tail end plane circle is 2 times that of a top end plane circle, a conical head (21) is arranged in the middle of the top end plane, a transmission convex column (22) is arranged in the middle of the tail end plane, annular grooves (23) for subsection processing are axially distributed on the outer surface of the conical body at intervals, a polishing section (D) formed after the conical body with the distance of 0-200 mm from the tail end plane is inwards ground by a grinding device by 0.5mm is arranged on the outer surface of the conical body, and the polishing section (D) is in smooth transition with the rest parts of the outer surface of the conical body.
2. The composite structure of claim 1, wherein: the feeding section (A) is double-spiral, the feeding section (A) comprises a feeding section (A1), a feeding section (A2) and a feeding section (A3), the feeding section (A1), the feeding section (A2) and the feeding section (A3) are sequentially connected end to end, and spiral intervals of the feeding section (A1), the feeding section (A2) and the feeding section (A3) are sequentially reduced.
3. The composite structure of claim 2, wherein: the melting section (B) comprises a melting section (B1), a melting section (B2), a melting section (B3) and a melting section (B4), the melting section (B1), the melting section (B2) and the melting section (B3) are single spiral edges, the melting section (B4) is three spiral edges, the melting section (B1) and the melting section (B2) are connected together end to end, and the melting section (B2), the melting section (B3) and the melting section (B4) are sequentially arranged in a separated mode.
4. The composite structure of claim 3, wherein: a reflux groove (11) is arranged at the tail part of the first melting section (B1) and the second melting section (B2).
5. The composite structure of claim 4, wherein: the material discharging section (C) is a three-screw-edge structure, the material discharging section (C) comprises a material discharging section (C1), a material discharging section (C2) and a material discharging section (C3), the material discharging section (C1), the material discharging section (C2) and the material discharging section (C3) are sequentially connected end to end, and screw-edge intervals of the material discharging section (C1), the material discharging section (C2) and the material discharging section (C3) are sequentially increased.
6. The composite structure of claim 5, wherein: the screw widths of the first discharging section (C1), the second discharging section (C2) and the third discharging section (C3) are increased in sequence.
7. The composite structure according to any one of claims 1 to 6, wherein: the machine barrel is composed of a machine barrel section (E), a machine barrel section (F) and a machine barrel section (G), wherein an exhaust port of the machine barrel is located at the joint of the machine barrel section (F) and the machine barrel section (G), an alloy layer is arranged on the inner wall of the machine barrel section (E), corresponding alloy sleeves (33) penetrate through inner holes of the machine barrel section (F) and the machine barrel section (G), and a temperature control pipe installation groove (31) is formed in the outer wall of the machine barrel section (G).
8. The composite structure of claim 7, wherein: the barrel section (F) includes a first barrel section (F1) and a second barrel section (F2), the diameter of the first barrel section (F1) being greater than the diameter of the second barrel section (F2).
9. The composite structure of claim 8, wherein: the three cylinder sections (G) comprise a third cylinder section (G1) and a fourth cylinder section (G2), the diameter of the third cylinder section (G1) is larger than that of the fourth cylinder section (G2), and the temperature control pipe installation groove (31) is formed in the fourth cylinder section (G2).
10. The composite structure of claim 9, wherein: the temperature control pipe installation groove (31) is a spiral groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121203032.3U CN215151700U (en) | 2021-05-28 | 2021-05-28 | Combined structure of barrel screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121203032.3U CN215151700U (en) | 2021-05-28 | 2021-05-28 | Combined structure of barrel screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215151700U true CN215151700U (en) | 2021-12-14 |
Family
ID=79376341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121203032.3U Active CN215151700U (en) | 2021-05-28 | 2021-05-28 | Combined structure of barrel screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215151700U (en) |
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2021
- 2021-05-28 CN CN202121203032.3U patent/CN215151700U/en active Active
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