CN218227783U - Centering adjustment structure of cable extrusion die - Google Patents
Centering adjustment structure of cable extrusion die Download PDFInfo
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- CN218227783U CN218227783U CN202222076021.4U CN202222076021U CN218227783U CN 218227783 U CN218227783 U CN 218227783U CN 202222076021 U CN202222076021 U CN 202222076021U CN 218227783 U CN218227783 U CN 218227783U
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Abstract
The scheme discloses a centering adjustment structure of a cable extrusion die, which comprises an extruder head, a die core and a die sleeve, wherein the die core is fixed on the extruder head, the die sleeve is adjustably fixed outside the die core, and the centering adjustment structure also comprises a positioning sleeve and a positioning shaft; the radial section of the positioning sleeve is in a ring shape, a stepped hole is coaxially arranged in the positioning sleeve, the diameter of the upstream section of the stepped hole is large, the diameter of the downstream section of the stepped hole is small, and the positioning shaft is coaxially fixed on the downstream section; the positioning shaft is inserted into the downstream end opening of the mold core in a matching manner; the downstream end surface of the die sleeve is provided with a positioning groove, the positioning groove is annular, and the annular axis is collinear with the axis of the die sleeve; the positioning sleeve and the positioning groove form a matching splicing relation. The beneficial effect of this scheme is: the fluctuation of manual experience is eliminated, the objective structure is adopted to realize reliable centering effect, and the use is convenient.
Description
Technical Field
The utility model belongs to the field of machinery, specifically a structure is adjusted in extrusion die centering of cable.
Background
In the processing technology of the insulating layer and the sheath layer of the cable, the extrusion die is basically split, the die core and the die sleeve are connected through the shunt, the die core is adopted for fixing, and the die sleeve is positioned by adjusting the force of four fixing bolts for fixing the die sleeve, so that the concentricity of the extruded material is adjusted and controlled. For example, chinese patent document CN215417694U discloses a "coaxial cable strippable sheath extrusion die" in 2021, 1, 4, which includes a die core and a die sleeve that are matched with each other, when the die core and the die sleeve are matched with each other to form the die, an annular sheath extrusion space is formed between the die core and the die sleeve, two protruding nibs extending into the annular sheath extrusion space are provided at intervals on an outer wall of a front end of the die core along a circumferential direction, and two openings are formed on an inner wall of a sheath when the two protruding nibs are used for extruding the sheath. The sheath extruded on the coaxial cable by the coaxial cable strippable sheath extrusion die with the structure can be relatively easily torn without tearing a rope during installation. In this type of traditional structure, centering adjustment operation mainly relies on artifical experience, therefore the effect of adjusting varies from person to person, hardly realizes standardization and datamation, even if operating personnel have the production experience of many years and also need adjust repeatedly, both extravagant adjustment time, also wasted a large amount of raw and other materials.
SUMMERY OF THE UTILITY MODEL
Based on the problem, the utility model provides a structure is adjusted in cable extrusion mould centering has got rid of the volatility of artificial experience, adopts objective structure cooperation to realize reliable centering effect, and it is convenient to use moreover.
All parts involved in the present solution are coaxially arranged, and, unless otherwise specified, the definitions of axial, radial and circumferential directions mentioned hereinafter are the same for each part.
In order to realize the purpose of the invention, the utility model adopts the following technical proposal: a centering adjustment structure of a cable extrusion die comprises an extruder head, a die core and a die sleeve, wherein the die core is fixed on the extruder head, the die sleeve is adjustably fixed outside the die core,
the positioning device also comprises a positioning sleeve and a positioning shaft;
the radial section of the positioning sleeve is in a ring shape, a stepped hole is coaxially arranged in the positioning sleeve, the diameter of the upstream section of the stepped hole is large, the diameter of the downstream section of the stepped hole is small, and the positioning shaft is coaxially fixed on the downstream section;
the positioning shaft is inserted into the downstream end opening of the mold core in a matching manner;
a positioning groove is arranged on the downstream end surface of the die sleeve, the positioning groove is annular, and the axis of the annular is collinear with the axis of the die sleeve;
the positioning sleeve and the positioning groove form a matching splicing relation.
Preferably, a shaft bushing is arranged between the positioning sleeve and the positioning shaft.
Preferably, the sidewall of the positioning sleeve is provided with a positioning sleeve side air hole which penetrates along the axial direction.
Preferably, a shaft bushing cover plate is detachably provided on the downstream end face of the positioning sleeve.
Preferably, the side wall of the bush cover plate is provided with a bush cover plate side air hole which penetrates in the axial direction, and the bush cover plate side air hole corresponds to the position of the positioning sleeve side air hole.
Preferably, the positioning sleeve side air holes are located in the width center of the downstream end face ring of the positioning sleeve, the diameter of the positioning sleeve side air holes is 1-3mm, the number of the positioning sleeve side air holes is 4~6, and the positioning sleeve side air holes are evenly distributed on the circumference at equal angles.
Preferably, the device also comprises a fastening sleeve; the adapter sleeve is connected with the fixed die sleeve and the extruder head in a bridging manner.
Preferably, the depth of the positioning groove is 1 to 3mm greater than the length of the positioning sleeve.
Preferably, the thickness of the side wall of the upstream section of the positioning sleeve stepped hole is 3-10mm.
Preferably, the thickness of the shaft bushing is 3 to 5mm.
Preferably, the length of the positioning shaft is greater than the sum of the length of an inner hole of the mold core, the thickness of the shaft bushing and the thickness of the bushing cover plate by 100-150mm.
The cable extrusion die centering adjustment structure designed by the technical scheme comprises an extruder head, a die core, a die sleeve, a positioning shaft and the like. The die core is typically threaded onto the flow splitter of the extruder head; the locating sleeve is of a cylindrical structure, a stepped hole is coaxially formed in the locating sleeve, two ends of the locating sleeve are communicated, the upstream section is large in diameter, and the downstream section is small in diameter. And the end surface of the downstream end of the die sleeve is coaxially provided with an annular positioning groove, and the upstream section of the positioning sleeve is in adaptive splicing with the positioning groove. The outside parcel of location axle has the shaft liner, cup joints the downstream section at the position sleeve, and simultaneously, the location axle is enough long, and the upper reaches section of location axle is pegged graft with the low reaches end opening adaptation of mold core. Such design sets up the position sleeve through the location axle and is set up to be concentric with the downstream end opening of mold core, and the cooperation of the upper reaches section of rethread position sleeve through-hole and constant head tank sets up the die sleeve to concentric with the position sleeve to realized not relying on artificial experience and can guaranteeing the concentric setting of mold core and die sleeve.
The shaft bushing cover plate is used for fixing the axial direction of the shaft bushing. The fastening sleeve is used for fixing the die sleeve which is arranged concentrically with the extruder head.
The positions of the positioning sleeve side air holes correspond to the positions of the shaft bushing cover plate side air holes, and the number and the aperture are the same. When the locating sleeve is inserted into or pulled out of the locating groove, the locating sleeve side air hole and the bushing cover plate side air hole are matched to form an exhaust passage, so that the locating sleeve can be assembled and disassembled conveniently.
The die sleeve is concentric with the die core and can be drawn out of the positioning shaft after being fixed by the fastening sleeve, the positioning sleeve is disassembled, and the extrusion die can be used for plastic extrusion operation.
In addition, through the location axle of changing different diameters, this scheme can the mold core of the different bores of adaptation.
To sum up, the beneficial effects of the utility model are that: the fluctuation of manual experience is eliminated, the reliable centering effect is realized by adopting objective structure matching, and the use is convenient.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a partial exploded view of FIG. 1;
FIG. 3 is an axial cross-sectional view of the locating sleeve;
FIG. 4 is a left side view of the positioning sleeve;
fig. 5 is a schematic structural view of the positioning sleeve, the shaft bushing, the positioning shaft and the shaft bushing cover plate which are removed.
Wherein: the die comprises an extruder head 1, a die core 2, a die sleeve 3, a positioning groove 4, a fastening sleeve 5, a positioning sleeve 6, a positioning sleeve side air hole 7, a shaft bushing 8, a positioning shaft 9, a shaft bushing cover plate 10 and a shaft bushing cover plate side air hole 11.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description.
Examples
The embodiment shown in fig. 1 is a centering adjustment structure of a cable extrusion die, and can be widely applied to the processing technology of an insulating layer and a sheath layer of a cable.
As shown in fig. 2, the centering adjustment structure of the cable extrusion die of the present embodiment includes main components such as an extrusion head 1, a die core 2, a die sleeve 3, a fastening sleeve 5, a positioning sleeve 6, and a positioning shaft 9. Wherein, the mold core 2 is fixed on the shunt of the extruder head 1 through threaded connection. The downstream end surface of the die sleeve 3 is provided with a positioning groove 4, and the positioning groove 4 is a coaxial annular groove. As shown in fig. 3 and 4, the positioning sleeve 6 is a cylindrical structure with two through ends, a stepped hole is concentrically arranged in the middle, the diameter of the upstream section is large, the hole wall is thin, and the diameter of the downstream section is small, and the hole wall is thick. The hole wall of the upstream section of the stepped hole of the positioning sleeve 6 can be inserted into the positioning groove 4 in an adaptive manner. The downstream section of the stepped hole of the positioning sleeve 6 is fixed with a positioning shaft 9 through a shaft bushing 8, and the positioning shaft 9 is inserted with the outlet of the downstream end of the mold core 2 in a matching way.
The lateral wall of the locating sleeve 6 is provided with a locating sleeve side air hole 7 which is through along the axial direction, the position of the locating sleeve side air hole is located in the width center of the downstream end face of the locating sleeve 6, the diameter of the locating sleeve side air hole is 3mm, the number of the locating sleeve side air holes is 4, and the locating sleeve side air hole is evenly distributed on the circumference at equal angles. A shaft bushing cover plate 10 for fixing the shaft bushing 8 is further arranged outside the downstream side end face of the positioning sleeve, a shaft bushing cover plate side air hole 11 is formed in the shaft bushing cover plate 10, and the position, the number and the size of the shaft bushing cover plate side air hole 11 correspond to the positioning sleeve side air hole 7.
The fastening sleeve 5 is bridged over the fixed die sleeve 3 and the extruder head 1 and is used for fixing the die sleeve 3 which is arranged concentrically with the extruder head 1.
In this example, the thickness of the side wall of the upstream section of the stepped hole of the positioning sleeve 6 is 10mm; the depth of the positioning groove 4 is 3mm greater than the length of the positioning sleeve 6; the thickness of the shaft bushing 8 is 3mm, the size of an inner hole needs to correspond to that of the inner hole of the mold core 2, and the size deviation is 0-0.02 mm; the length of the positioning shaft 9 is greater than the sum of the length of the inner hole of the mold core 2, the thickness of the shaft bushing 8 and the thickness of the shaft bushing cover plate 10 by 100mm; the size deviation of the outer hole of the positioning groove 4 is 0-0.02 mm, the size deviation of the inner hole is-0.02-0 mm, the size deviation of the outer ring of the upstream section of the stepped hole of the positioning sleeve 6 is-0.02-0 mm, and the size deviation of the inner ring is 0-0.02 mm.
The centering adjustment steps of this example are as follows:
firstly, the mold core 2 is fixed on a flow divider of the extruder head 1 through threaded connection, then the adaptive positioning shaft 9 is selected, the mold core is fixed at the downstream section of a stepped hole of the positioning sleeve 6 through the fixing shaft bushing 8, then the positioning sleeve 6 is matched with the positioning groove 4 in an inserting manner, the mold sleeve 3 is fixed with the positioning sleeve 6, then the mold sleeve 3 is fixed with the extruder head 1 through the fastening sleeve 5 in a bridging manner, the position of the mold sleeve 3 is fixed, finally the positioning shaft 9 and the positioning sleeve 6 are drawn out, the centering setting is completed, the state at the moment is as shown in fig. 5, and the extrusion mold can be used for plastic extrusion.
Claims (10)
1. A centering adjustment structure of a cable extrusion die comprises an extrusion head (1), a die core (2) and a die sleeve (3), wherein the die core (2) is fixed on the extrusion head (1), the die sleeve (3) is adjustably fixed outside the die core (2),
the device also comprises a positioning sleeve (6) and a positioning shaft (9);
the radial section of the positioning sleeve (6) is in a circular ring shape, a stepped hole is coaxially arranged in the positioning sleeve, the diameter of the upstream section of the stepped hole is large, the diameter of the downstream section of the stepped hole is small, and a positioning shaft (9) is coaxially fixed on the downstream section;
the positioning shaft (9) is inserted into the downstream end opening of the mold core (2) in a matching manner;
a positioning groove (4) is arranged on the downstream end surface of the die sleeve (3), the positioning groove (4) is annular, and the annular axis is collinear with the axis of the die sleeve (3);
the positioning sleeve (6) and the positioning groove (4) form an adaptive splicing relation.
2. A cable extrusion die centering adjustment structure according to claim 1, wherein a shaft bushing (8) is provided between the positioning sleeve (6) and the positioning shaft (9).
3. A cable extrusion die centering adjustment structure according to claim 1 or 2, wherein a positioning sleeve side air hole (7) is formed on the side wall of the positioning sleeve (6) in an axially through manner.
4. A cable extrusion die centering adjustment structure according to claim 3, wherein the downstream end face of the positioning sleeve (6) is removably provided with a bushing cover plate (10).
5. A cable extrusion die centering adjustment structure according to claim 4, characterized in that the side wall of the shaft bushing cover plate (10) is provided with a shaft bushing cover plate side air hole (11) which penetrates through along the axial direction, and the position of the shaft bushing cover plate side air hole (11) corresponds to the position of the positioning sleeve side air hole (7).
6. The centering adjustment structure of the cable extrusion die as claimed in claim 3, wherein the positioning sleeve side air holes (7) are located in the width center of the downstream end face of the positioning sleeve (6), have a diameter of 1 to 3mm, are 4~6 in number, and are uniformly arranged at equal angles on the circumference.
7. A cable extrusion die centering adjustment structure according to claim 1 or 2, further comprising a fastening sleeve (5); the fastening sleeve (5) is bridged and fixed with the die sleeve (3) and the extruder head (1).
8. A cable extrusion die centering adjustment structure according to claim 1 or 2, wherein the depth of the positioning groove (4) is 1 to 3mm greater than the length of the positioning sleeve (6).
9. A cable extrusion die centering adjustment structure as claimed in claim 1 or 2, wherein the thickness of the side wall of the upstream section of the stepped hole of the positioning sleeve (6) is 3 to 10mm.
10. The cable extrusion die centering adjustment structure as claimed in claim 2, wherein the thickness of the shaft bushing (8) is 3 to 5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222076021.4U CN218227783U (en) | 2022-08-05 | 2022-08-05 | Centering adjustment structure of cable extrusion die |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222076021.4U CN218227783U (en) | 2022-08-05 | 2022-08-05 | Centering adjustment structure of cable extrusion die |
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| CN218227783U true CN218227783U (en) | 2023-01-06 |
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| CN202222076021.4U Active CN218227783U (en) | 2022-08-05 | 2022-08-05 | Centering adjustment structure of cable extrusion die |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117549532A (en) * | 2023-12-09 | 2024-02-13 | 青岛新大成塑料机械有限公司 | Extruder head for extruder, extrusion equipment and replacement method thereof |
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2022
- 2022-08-05 CN CN202222076021.4U patent/CN218227783U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117549532A (en) * | 2023-12-09 | 2024-02-13 | 青岛新大成塑料机械有限公司 | Extruder head for extruder, extrusion equipment and replacement method thereof |
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