CN203818538U - Double-wall pipe manufacturing die - Google Patents
Double-wall pipe manufacturing die Download PDFInfo
- Publication number
- CN203818538U CN203818538U CN201420105225.9U CN201420105225U CN203818538U CN 203818538 U CN203818538 U CN 203818538U CN 201420105225 U CN201420105225 U CN 201420105225U CN 203818538 U CN203818538 U CN 203818538U
- Authority
- CN
- China
- Prior art keywords
- wall
- inwall
- die sleeve
- double
- sleeve
- 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.)
- Withdrawn - After Issue
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/30—Extrusion nozzles or dies
- B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
- B29C48/335—Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles
- B29C48/337—Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles the components merging at a common location
- B29C48/338—Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles the components merging at a common location using a die with concentric parts, e.g. rings, cylinders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
Abstract
The utility model discloses a double-wall pipe manufacturing die. The die comprises an inner wall die and an outer wall die, wherein the inner wall die is used for forming an inner wall; the outer wall die is used for forming an outer wall; the inner wall die comprises an inner wall outer sleeve; a feeding section of outer wall raw materials is arranged on the outer wall of the inner wall outer sleeve and comprises a first ring groove, a single-end spiral groove, a second ring groove and a multi-end spiral groove which are formed from the feeding end to the discharge end in sequence; the lead of the single-end spiral groove is greater than that of the multi-end spiral groove. The die has the beneficial effects that the outer wall raw materials passing through the first ring groove enter the single-end spiral groove and plasticization of the raw materials is enhanced under the action of the spiral groove with greater lead, and then the outer wall raw materials are approximately averaged by the second ring groove along the circumferential direction and enter the multi-end spiral groove to prevent excessive plasticization of the raw materials; the outer wall of the original inner wall outer sleeve can be improved and the feeding section is arranged, thus effectively improving plasticization of the raw materials and then obtaining pipe bodies with high outer surface strength and good smooth finish.
Description
Technical field
the utility model relates to a kind of double-wall pipe Pipe making mold.
Background technology
along with improving constantly that user requires, the intensity of tubulation outer surface and fineness require more and more higher, this just needs plastic raw materials can reach suitable plasticizing rate before tubulation discharging, in conventional art, in double-wall pipe Pipe making mold, outer wall raw material almost moves along straight channel entering after outer wall runner, do not have raw material plasticizing capacity is carried out to improved function, cause goods to satisfy the demands.
Utility model content
for the technical deficiency of above-mentioned existence, the purpose of this utility model is to provide a kind of double-wall pipe Pipe making mold, and it arranges feed zone that can raw material plasticizing rate on outer wall runner, has effectively improved outer surface intensity and the fineness of goods.
for solving the problems of the technologies described above, the utility model adopts following technical scheme:
a kind of double-wall pipe Pipe making mold, comprise the inwall mould that is used to form inwall, be used to form the outer wall mold of outer wall, described inwall mould comprises inwall core rod, inwall die sleeve and shunting support, between described inwall core rod and described inwall die sleeve, form inwall runner, described shunting support has inner ring and the outer ring being connected with described inner ring by shunting muscle, described inwall core rod comprises the spreader of a side that is connected to described inner ring, be connected to inwall inner sleeve and the inwall core of the opposite side of described inner ring in turn, described spreader, inner ring, inwall inner sleeve, inwall core coaxially distributes successively, described inwall die sleeve comprises the tail die sleeve with inwall charging aperture of the periphery that is set in described spreader, be set in the inwall overcoat of the periphery of described inwall inner sleeve, be set in the inwall mouth mould of the periphery of described inwall core, between described inwall core and described inwall mouth mould, form inwall discharging opening, described outer wall mold comprises outer wall core rod and outer wall die sleeve, between described outer wall core rod and described outer wall die sleeve, form outer wall runner, described outer wall core rod comprises the feed zone on the part outer wall that is formed on described inwall overcoat, be set in the outer wall inner sleeve of the periphery of the described inwall overcoat of part, be set in the outer wall core of the periphery of described inwall mouth mould, described feed zone, outer wall inner sleeve, outer wall core coaxially distributes successively, described outer wall die sleeve comprises the middle die sleeve being axially connected mutually with described tail die sleeve, the outer wall overcoat being axially connected mutually with described middle die sleeve, between described outer wall core and described outer wall overcoat, form outer wall discharging opening, on described middle die sleeve, radially offer outer wall charging aperture, described feed zone comprises the first cannelure of offering successively to the direction of the outer ring away from described, single head helicla flute, the second cannelure and multi-head spiral groove, described single head spiral fluted helical pitch is greater than the helical pitch of multi-head spiral groove, the first described cannelure and described outer wall charging aperture connect.
preferably, the width of the first described cannelure is greater than the width of the second described cannelure.
preferably, the axle center of described inner ring offers screwed hole, and described spreader is threaded in this screwed hole.
preferably, the periphery of described outer wall overcoat is provided with the adjusting part for it being carried out to aligning.
preferably, described adjusting part comprises circumferentially equally distributed many bolts, and each described bolt radially extends.
preferably, the end of described outer wall overcoat has the protruding eaves circumferentially forming to external expansion, the ring-type pressing plate that section is L-type is fixedly mounted on the corresponding end of described middle die sleeve, between pressing plate described in described protruding eaves axial clamp is held in and described middle die sleeve, bolt described in many is arranged on described pressing plate, and the inner end of each described bolt is pushed against on the outer peripheral face of described protruding eaves.
preferably, described inwall puts outward has one section of external screw thread, and described outer wall inner sleeve is by internal thread and this external screw thread assembly connection of end.
preferably, described inner ring is connected on the end face of described inwall inner sleeve by many axially extended the first screws, and the first screw described in these is uniformly distributed circumferentially.
preferably, between described tail die sleeve and described middle die sleeve, be connected by many axially extended the second screws, the second screw described in these is uniformly distributed circumferentially.
the beneficial effects of the utility model are: at the feed zone of outer wall runner, the first cannelure is set, single head helicla flute, the second helicla flute and multi-head spiral groove, and make single head spiral fluted helical pitch be greater than the helical pitch of multi-head spiral groove, the first cannelure and outer wall charging aperture connect, outer wall raw material through the first cannelure enters single head helicla flute, under its larger helical pitch spiral fluted effect, strengthen the plasticizing of raw material, then circumferentially roughly divide equally and enter multi-head spiral groove through the second cannelure edge again, prevent the plasticizing that raw material is excessive, the design can improve at the outer wall of original inwall overcoat, offer feed zone, thereby effectively improve the plasticizing of raw material, and then the intensity that obtains outer surface is high and the good body of fineness.
Brief description of the drawings
the structural representation (axially analysing and observe) that accompanying drawing 1 is double-wall pipe Pipe making mold of the present utility model.
in accompanying drawing: 1, shunting support; 2, inwall runner; 3, inner ring; 4, outer ring; 5, shunting muscle; 6, spreader; 7, inwall inner sleeve; 8, inwall core; 9, inwall charging aperture; 10, tail die sleeve; 11, inwall overcoat; 12, inwall mouth mould; 13, inwall discharging opening; 14, outer wall runner; 15, feed zone; 16, outer wall inner sleeve; 17, outer wall core; 18, middle die sleeve; 19, outer wall overcoat; 20, outer wall discharging opening; 21, outer wall charging aperture; 22, the first cannelure; 23, single head helicla flute; 24, the second cannelure; 25, multi-head spiral groove; 26, bolt; 27, protruding eaves; 28, pressing plate; 29, the first screw; 30, the second screw.
Detailed description of the invention
below in conjunction with embodiment shown in the drawings, the utility model is described in detail below:
as shown in Figure 1, a kind of double-wall pipe Pipe making mold, comprise be used to form inwall inwall mould, be used to form the outer wall mold of outer wall, inwall mould comprises inwall core rod, inwall die sleeve and shunting support 1, between inwall core rod and inwall die sleeve, form inwall runner 2, shunting support 1 has inner ring 3 and the outer ring 4 being connected with inner ring 3 by shunting muscle 5, inwall core rod comprise a side that is connected to inner ring 3 spreader 6, be connected to inwall inner sleeve 7 and the inwall core 8 of the opposite side of inner ring 3 in turn, spreader 6, inner ring 3, inwall inner sleeve 7, inwall core 8 coaxially distribute successively, inwall die sleeve comprises the tail die sleeve 10 with inwall charging aperture 9 of the periphery that is set in spreader 6, be set in the inwall overcoat 11 of the periphery of inwall inner sleeve 7, be set in the inwall mouth mould 12 of the periphery of inwall core 8, between inwall core 8 and inwall mouth mould 12, form inwall discharging opening 13, outer wall mold comprises outer wall core rod and outer wall die sleeve, between outer wall core rod and outer wall die sleeve, form outer wall runner 14, outer wall core rod comprises the feed zone 15 on the part outer wall that is formed on inwall overcoat 11, be set in the outer wall inner sleeve 16 of the periphery of part inwall overcoat 11, be set in the outer wall core 17 of the periphery of inwall mouth mould 12, feed zone 15, outer wall inner sleeve 16, outer wall core 17 coaxially distributes successively, outer wall die sleeve comprises the middle die sleeve 18 being axially connected mutually with tail die sleeve 10, the outer wall overcoat 19 being axially connected mutually with middle die sleeve 18, between outer wall core 17 and outer wall overcoat 19, form outer wall discharging opening 20, the outer wall mouth mould in conventional art is equivalent to one-body molded on the corresponding end of outer wall overcoat 19, on middle die sleeve 18, radially offer outer wall charging aperture 21, feed zone 15 comprises to the first cannelure 22 of offering successively away from the direction of outer ring 4, single head helicla flute 23, the second cannelure 24 and multi-head spiral groove 25, the helical pitch of single head helicla flute 23 is greater than the helical pitch of multi-head spiral groove 25, and the first cannelure 22 connects with outer wall charging aperture 21.
further particularly, the width of the first above-mentioned cannelure 22 is greater than the width of the second cannelure 24, the axle center of inner ring 3 offers screwed hole, spreader 6 is threaded in this screwed hole, the periphery of outer wall overcoat 19 is provided with the adjusting part for it being carried out to aligning, adjusting part comprises circumferentially equally distributed many bolts 26, each bolt 26 radially extends, the end of outer wall overcoat 19 has the protruding eaves 27 circumferentially forming to external expansion, the ring-type pressing plate 28 that section is L-type is fixedly mounted on the corresponding end of middle die sleeve 18, protruding eaves 27 axial clamp are held between pressing plate 28 and middle die sleeve 18, many bolts 26 are arranged on pressing plate 28, the inner end of each bolt 26 is pushed against on the outer peripheral face of protruding eaves 27, on inwall overcoat 11, there is one section of external screw thread, outer wall inner sleeve 16 is by internal thread and this external screw thread assembly connection of end, inner ring 3 is connected on the end face of inwall inner sleeve 7 by many axially extended the first screws 29, these first screws 29 are uniformly distributed circumferentially, between tail die sleeve 10 and middle die sleeve 18, be connected by many axially extended the second screws 30, these second screws 30 are uniformly distributed circumferentially, in addition, on tail die sleeve 10, be provided with another adjusting part for shunting support 1 being carried out to aligning.
design of the present utility model arranges the first cannelure 22 at the feed zone 15 of outer wall runner 14, single head helicla flute 23, the second helicla flute and multi-head spiral groove 25, and the helical pitch that makes single head helicla flute 23 is greater than the helical pitch of multi-head spiral groove 25, the first cannelure 22 connects with outer wall charging aperture 21, outer wall raw material through the first cannelure 22 enters single head helicla flute 23, under its larger helical pitch spiral fluted effect, strengthen the plasticizing of raw material, then circumferentially roughly divide equally and enter multi-head spiral groove 25 through the second cannelure 24 edges again, prevent the plasticizing that raw material is excessive, the design can improve at the outer wall of original inwall overcoat 11, offer feed zone 15, thereby effectively improve the plasticizing of raw material, and then the intensity that obtains outer surface is high and the good body of fineness.
above-described embodiment is only explanation technical conceive of the present utility model and feature, and its object is to allow person skilled in the art can understand content of the present utility model and implement according to this, can not limit protection domain of the present utility model with this.All equivalences of doing according to the utility model spirit change or modify, within all should being encompassed in protection domain of the present utility model.
Claims (9)
1. a double-wall pipe Pipe making mold, it is characterized in that: comprise the inwall mould that is used to form inwall, be used to form the outer wall mold of outer wall, described inwall mould comprises inwall core rod, inwall die sleeve and shunting support, between described inwall core rod and described inwall die sleeve, form inwall runner, described shunting support has inner ring and the outer ring being connected with described inner ring by shunting muscle, described inwall core rod comprises the spreader of a side that is connected to described inner ring, be connected to inwall inner sleeve and the inwall core of the opposite side of described inner ring in turn, described spreader, inner ring, inwall inner sleeve, inwall core coaxially distributes successively, described inwall die sleeve comprises the tail die sleeve with inwall charging aperture of the periphery that is set in described spreader, be set in the inwall overcoat of the periphery of described inwall inner sleeve, be set in the inwall mouth mould of the periphery of described inwall core, between described inwall core and described inwall mouth mould, form inwall discharging opening, described outer wall mold comprises outer wall core rod and outer wall die sleeve, between described outer wall core rod and described outer wall die sleeve, form outer wall runner, described outer wall core rod comprises the feed zone on the part outer wall that is formed on described inwall overcoat, be set in the outer wall inner sleeve of the periphery of the described inwall overcoat of part, be set in the outer wall core of the periphery of described inwall mouth mould, described feed zone, outer wall inner sleeve, outer wall core coaxially distributes successively, described outer wall die sleeve comprises the middle die sleeve being axially connected mutually with described tail die sleeve, the outer wall overcoat being axially connected mutually with described middle die sleeve, between described outer wall core and described outer wall overcoat, form outer wall discharging opening, on described middle die sleeve, radially offer outer wall charging aperture, described feed zone comprises the first cannelure of offering successively to the direction of the outer ring away from described, single head helicla flute, the second cannelure and multi-head spiral groove, described single head spiral fluted helical pitch is greater than the helical pitch of multi-head spiral groove, the first described cannelure and described outer wall charging aperture connect.
2. double-wall pipe Pipe making mold according to claim 1, is characterized in that: the width of the first described cannelure is greater than the width of the second described cannelure.
3. double-wall pipe Pipe making mold according to claim 1, is characterized in that: the axle center of described inner ring offers screwed hole, described spreader is threaded in this screwed hole.
4. double-wall pipe Pipe making mold according to claim 1, is characterized in that: the periphery of described outer wall overcoat is provided with the adjusting part for it being carried out to aligning.
5. double-wall pipe Pipe making mold according to claim 4, is characterized in that: described adjusting part comprises circumferentially equally distributed many bolts, and each described bolt radially extends.
6. double-wall pipe Pipe making mold according to claim 5, it is characterized in that: the end of described outer wall overcoat has the protruding eaves circumferentially forming to external expansion, the ring-type pressing plate that section is L-type is fixedly mounted on the corresponding end of described middle die sleeve, between pressing plate described in described protruding eaves axial clamp is held in and described middle die sleeve, bolt described in many is arranged on described pressing plate, and the inner end of each described bolt is pushed against on the outer peripheral face of described protruding eaves.
7. double-wall pipe Pipe making mold according to claim 1, is characterized in that: described inwall puts outward has one section of external screw thread, and described outer wall inner sleeve is by internal thread and this external screw thread assembly connection of end.
8. double-wall pipe Pipe making mold according to claim 1, is characterized in that: described inner ring is connected on the end face of described inwall inner sleeve by many axially extended the first screws, and the first screw described in these is uniformly distributed circumferentially.
9. double-wall pipe Pipe making mold according to claim 1, is characterized in that: between described tail die sleeve and described middle die sleeve, be connected by many axially extended the second screws, the second screw described in these is uniformly distributed circumferentially.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420105225.9U CN203818538U (en) | 2014-03-10 | 2014-03-10 | Double-wall pipe manufacturing die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420105225.9U CN203818538U (en) | 2014-03-10 | 2014-03-10 | Double-wall pipe manufacturing die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203818538U true CN203818538U (en) | 2014-09-10 |
Family
ID=51474080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420105225.9U Withdrawn - After Issue CN203818538U (en) | 2014-03-10 | 2014-03-10 | Double-wall pipe manufacturing die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203818538U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103935009A (en) * | 2014-03-10 | 2014-07-23 | 苏州金纬机械制造有限公司 | Double-wall pipe production mold |
-
2014
- 2014-03-10 CN CN201420105225.9U patent/CN203818538U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103935009A (en) * | 2014-03-10 | 2014-07-23 | 苏州金纬机械制造有限公司 | Double-wall pipe production mold |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140910 Effective date of abandoning: 20160511 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20140910 Effective date of abandoning: 20160511 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |