CN104802387B - Reducing mold on pipe production line - Google Patents
Reducing mold on pipe production line Download PDFInfo
- Publication number
- CN104802387B CN104802387B CN201510211607.9A CN201510211607A CN104802387B CN 104802387 B CN104802387 B CN 104802387B CN 201510211607 A CN201510211607 A CN 201510211607A CN 104802387 B CN104802387 B CN 104802387B
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- CN
- China
- Prior art keywords
- mold
- core
- production line
- pipe production
- mouth mold
- 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.)
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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
-
- 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
- B29C48/325—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles being adjustable, i.e. having adjustable exit sections
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention belongs to the field of pipe production lines, in particular to a reducing mold on a pipe production line. The reducing mold on the pipe production line comprises a neck mold and a core mold that are mounted on an extruder body. The reducing mold is characterized by further comprising an end plate and an entirety columnar core mold end head, wherein the end plate is detachably fixed at an extrusion end of the neck mold; a penetrable hole communicated with the neck mold is formed in the end plate; a center convex column is fixedly arranged at one end of the core mold end head and provided with external threads; a tightening part to tightly screw the external threads is arranged at the other end of the core mold end head; internal threads matched with the external threads are formed at one end, close to the neck mold, of the core mold; the center convex column of the core mold end head penetrates through the penetrable hole and is in threaded connection with the core mold; a main body part of the core mold end head traverses into the penetrable hole; and a clearance for extruding a pipe is reserved between the main body part and an internal wall of the penetrable hole. The reducing mold on the pipe production line is more convenient and quicker to use and can improve production efficiency.
Description
Technical field
The invention belongs to pipe production line field, and in particular to the reducing mold on a kind of pipe production line.
Background technology
Pipe production line is the streamline for tubing production.Mainly it is configured with：Automatic charging machine, extruder extrudes mould
Tool, vacuum sizing spraying box, traction machine, cutting machine, rickstand etc..Above-mentioned extrusion die is installed at cross-head, in pipe
When material is produced, Jing compactings, melting, the polyethylene of mixing homogenizing, polypropylene or polrvinyl chloride, screw rod in extruded machine in extruder
Push extrusion die and extruding pipe material to, therefore part is built in the pass that extrusion die is tube forming.
At present, extrusion die includes mouth mold and core in prior art；Wherein, the mouth mold is fixed on extruder body
On, the core is through the mouth mold and is fixed on extruder body, and there is a circle to use between the core and the mouth mold
In the gap of extruding pipe material.Above-mentioned extrusion die need to also wrap up in set heating collar, the heating collar in production and application in mouth mold outer surface
Mouth mold is heated and for keeping mouth mold in tubing raw material mobility.But existing extrusion die is in production and application
There is following weak point：
1st, because in existing extrusion die mouth mold and core be plug die, when producing the tubing of different tube diameters, need to be to extrusion
Mould is changed, and mold changing every time not only takes, and also needs to expend gap of more energy for adjusting mouth mold and core（The gap
For the thickness of tubing is obtained）, therefore have impact on the production efficiency of tubing.
2nd, mouth mold volume is larger in existing extrusion die, heavier-weight（About 10kg）, replacement operation is not only inconvenient, also deposits
Have and the potential safety hazard for pricking foot is easily fallen in Renewal process.
3rd, all need first to dismantle the heating collar that mouth mold outer surface wraps up in set before mold changing every time, subsequently just can be changed the mold；And then lead
Cause the replacing construction of mold changing long（Need 10 to 15 minutes）And because frequently dismounting again so that heating collar is easily damaged.
4th, extrusion die change finish after, need to start again heating collar mouth mold is re-started be heated to it is temperature required, should plus
Thermal process need to take about 30 points to 1 hour.
To sum up, the extrusion die Renewal process of prior art will be loaded down with trivial details, have a strong impact on the production efficiency of tubing.
The content of the invention
For above-mentioned the deficiencies in the prior art, the technical problem to be solved is：There is provided one kind to use more
For convenient, it is possible to increase the reducing mold on the pipe production line of production efficiency.
In order to solve above-mentioned technical problem, following technical scheme is present invention employs：
Reducing mold on a kind of pipe production line, including mouth mold and core on extruder body；Also include
End plate, the end plate is detachably secured to the extruding end of the mouth mold, has on the end plate and is worn with the mouth mold insertion
Hole；Also include an overall core termination being in the form of a column, one end of the core termination is installed with center projection, the center projection
With external screw thread, the core termination other end has tightens portion for what external screw thread was screwed；The neighbouring mouth on the core
One end of mould has the female thread matched with the external screw thread；The center projection of the core termination through it is described perforation and with institute
State core threaded connection；The main part of the core termination is traversed the perforation and is left for squeezing between the perforation inwall
Go out the gap of tubing.
Reducing mold on the pipe production line of the present invention, when using, mouth mold and core is arranged on extruder body,
Subsequently set heating collar can be wrapped up in outside mouth mold.Corresponding end plate and core termination are selected further according to the tubing model that need to be produced.
Because the tubing raw material in mouth mold most after the main part of Jing cores termination traverse in the perforation and stay between the perforation inwall
There is the gap for extruding pipe material to extrude, therefore working as need to change different-diameter（Model）Tubing when, without the need for pulling down heating collar after it is right
Extrusion die is integrally changed, and need to only change the end plate in structure and core termination can be used to produce different tubing realizations
The reducing of production tubing.Therefore the present invention is a kind of can fast change and for producing the reducing mold of different tube diameters tubing.This
Outward, the reducing mold on pipe production line of the invention, also has the advantage that：
1st, can be used to produce the tubing of different model because changing end plate and core termination, compared to stomodaeum mould and core
Speech, end plate and core termination small volume, it is lightweight, change very convenient, and be difficult, because dropping again, to improve when changing
The safety of operation.
2nd, after using the reducing mold on the pipe production line of the present invention, corresponding end can be selected according to different tubing
Plate and core termination and quick installation, and in this process, without the need for dismantling the heating collar that set is wrapped up in mouth mold, saved operation
Time, and the process can foreshorten to most fast only need 150 seconds, substantially increase production operation efficiency.
3rd, also because the process for changing end plate and core termination is not required to dismantle the heating collar that set is wrapped up in mouth mold so that dismounting or/
After end plate and core termination is installed, starting heating collar heating i.e. can quickly so that required for die temperature reaches
Ask.
Used as improvement, the extruding end of the mouth mold is provided with multiple screwed holes being uniformly distributed circumferentially, and has on the end plate
There is installing hole corresponding with the screwed hole, the end plate is realized being detachably fixed being connected by connecting bolt and the mouth mold.
So, you can the dismounting to end plate is realized by dismounting connecting bolt, it is convenient and swift.
Preferably, the portion of tightening is that the cross recess depression or regular polygon arranged on the end face of the core termination is recessed
Cave.
So, using the rotation tightening tool matched with cross recess depression or regular polygon depression, you can to core
Termination carries out rotation and tightens.
Preferably, the portion of tightening is many angle heads arranged on the end face of the core termination.
So, using the spanner matched with many angle heads, you can carry out rotation to core termination and tighten.
Used as improvement, the extruding end of the mouth mold also has a boss, with the connection mask of the mouth mold on the end plate
Have and realize the depression that male-female engagement is connected with the boss.
So, when end plate is connected with the extruding end of mouth mold, depression on end plate can be passed through and is realized with the boss at die extrusion end
The spacing connection of male-female engagement so that end plate is more easy to fix in position, saves in prior art because of readjustment mouth mold and core caused by mold changing
It is used for the link in the gap of extruding pipe material between mould.
Used as improvement, the aperture of one end of the neighbouring mouth mold gradually increases to form an enlarging in the perforation.
Convergence and water conservancy diversion of the setting of enlarging beneficial to the raw material for being used for extruding pipe material in mouth mold, beneficial to guarantee extruding pipe material
Quality.
Used as improvement, the core termination is provided with one end diameter of the center projection and is gradually reduced to form a conical surface.
The effect of the conical surface is identical with the effect of above-mentioned enlarging.
Used as improvement, the core termination is provided with one end of the center projection and is additionally provided with a round platform, the middle cardiac prominence
Post is located at round platform central authorities；Have female one end on the core to be additionally provided with for falling into for the round platform and realize recessed
The convex lower concave part being connected.
So, core termination round platform, can fall in the lower concave part of core, realize both spacing companies of male-female engagement
Connect, and then ensure the accurate installation of core termination, be so more conducive to save in prior art because caused by mold changing readjustment mouth mold with
It is used for the link in the gap of extruding pipe material between core.
Description of the drawings
Fig. 1 is the structural representation of the reducing mold on the pipe production line of the present invention.
Fig. 2 is the structural representation of mouth mold in the reducing mold on the pipe production line of the present invention.
Fig. 3 is the structural representation of the reducing mold core mould on the pipe production line of the present invention.
Fig. 4 is the structural representation of the reducing mold end plates on the pipe production line of the present invention.
Fig. 5 is the sectional view of Fig. 4.
Fig. 6 is the structural representation of the reducing mold core mould termination on the pipe production line of the present invention.
Fig. 7 is the sectional view of Fig. 6.
Fig. 8 is the structural representation of the reducing mold core mould termination another embodiment on the pipe production line of the present invention
Figure.
It is labeled as in figure：1 mouth mold, 11 screwed holes, 12 boss, 2 cores, 21 female threads, 22 lower concave parts, 3 end plates, 31 wear
Hole, 32 installing holes, 33 depressions, 34 enlargings, 4 core terminations, 41 center projections, 42 hexagon depressions, 43 conical surfaces, 44 round platforms, 45
Turret head, 5 heating collars.
Specific embodiment
Below in conjunction with the accompanying drawings the present invention is described in further detail.
As shown in Figures 1 to 7, the reducing mold on a kind of pipe production line, including the mouth on extruder body
Mould 1 and core 2；
Also include end plate 3, the end plate 3 is detachably secured to the extruding end of the mouth mold 1, has on the end plate 3
With the perforation 31 of the insertion of the mouth mold 1；
Also include an overall core termination 4 being in the form of a column, one end of the core termination 4 is installed with center projection 41, institute
Center projection 41 is stated with external screw thread, the other end of core termination 4 has tightens portion for what external screw thread was screwed；
One end of the neighbouring mouth mold 1 has the female thread 21 matched with the external screw thread on the core 2；The core
The center projection 41 of termination 4 is threadedly coupled through the perforation 31 and with the core 2；The main part of the core termination 4
Traverse the perforation 31 and gap for extruding pipe material is left between the inwall of perforation 31.
The extruding end of the mouth mold 1 is provided with multiple screwed holes 11 being uniformly distributed circumferentially, and has and institute on the end plate 3
The corresponding installing hole 32 of screwed hole 11 is stated, the end plate 3 is realized being detachably fixed being connected by connecting bolt and the mouth mold 1.
The portion of tightening is the hexagon depression 42 arranged on the end face of core termination 4.
The extruding end of the mouth mold 1 also has a boss 12, with the connection mask of the mouth mold 1 on the end plate 3
Have and realize the depression 33 that male-female engagement is connected with the boss 12.
The aperture of one end of the neighbouring mouth mold 1 gradually increases to form an enlarging 34 in the perforation 31.
The core termination 4 is provided with one end diameter of the center projection 41 and is gradually reduced to form a conical surface 43.Specifically
During enforcement, the maximum gauge place end face of the preferably conical surface 43 overlaps with the minimum diameter place end face of the enlarging 34.So
One, can play and optimal collect effect, it is ensured that the material tool more preferably compactness of extruding pipe material, and then improve pipe material product
Quality.
The core termination 4 is provided with one end of the center projection 41 and is additionally provided with a round platform 44, the center projection 41
It is central positioned at the round platform 44；The one end with female thread 21 is additionally provided with for falling into simultaneously for the round platform 44 on the core 2
Realize the lower concave part 22 that male-female engagement connects.
Reducing mold on aforementioned tubes production line, when using, first-selection selects corresponding according to the tubing that need to be produced
End plate 3 and core termination 4.Subsequently the end plate 3 chosen and core termination 4 are installed（Erection sequence is in no particular order）.
When carrying out the installation of end plate 3, first by the concavo-convex connection of boss 12 of the depression 33 on end plate 3 and the extruding end of mouth mold 1 can subsequently use
Connecting bolt realizes the quick and precisely positioning of end plate 3.When the installation of core termination 4 is carried out, by the middle cardiac prominence of core termination 4
The round platform 44 that the one end of the alignment core 2 of post 41 with female thread 21 is screwed in core termination 4 is recessed with the lower concave part 22 on core 2
It is convex be connected after realize being accurately positioned for core termination 4.And then save in prior art because mouth mold 1 and core 2 positioning not
Standard causes that the link in gap between the two need to be adjusted, and then it is efficiency to improve.Subsequently, the heating that the outer surface of mouth mold 1 wraps up in set is started
Circle 5 is heated to temperature required.
When needing to be used to produce the tubing of different-diameter using the extruder, only end plate 3 and core termination 4 need to be carried out
Change, i.e., can realize reducing.And in Renewal process, be also not required to dismantle the heating collar 5 in mouth mold 1, not only beneficial to energy-conservation,
The replacing efficiency of mould is improve, good technique effect is served.
Reducing mold on aforementioned tubes production line can be transformed directly come real by the extrusion die to prior art
It is existing.So, while can guarantee that above-mentioned technique effect, additionally it is possible to reduce the cost of implementation of technical optimization, therefore be adapted at this
Promote and use energetically in field.
Another embodiment：
Part different from the embodiment described above is：The portion of tightening is six arranged on the end face of core termination 4
Angle head 45（As shown in Figure 8）.
So, you can tighten fixation by realize core termination 4 using spanner.
The above is only the preferred embodiment of the present invention, need to point out be, for those skilled in the art are without departing from this skill
On the premise of art scheme, some deformations and improvement can also be made, above-mentioned deformation and improved technical scheme equally should be considered as
Enter this application claims scope.
Claims (8)
1. the reducing mold on a kind of pipe production line, including mouth mold and core on extruder body；Its feature exists
In also including end plate, the end plate is detachably secured to the extruding end of the mouth mold, has and the mouth mold on the end plate
The perforation of insertion；Also include an overall core termination being in the form of a column, one end of the core termination is installed with center projection, described
Center projection has external screw thread, and the core termination other end has tightens portion for what external screw thread was screwed；It is adjacent on the core
One end of the nearly mouth mold has the female thread matched with the external screw thread；The center projection of the core termination is worn through described
Core threaded connection described in Kong Bingyu；The main part of the core termination is traversed the perforation and is stayed between the perforation inwall
There is the gap for extruding pipe material.
2. the reducing mold on pipe production line according to claim 1, it is characterised in that the extruding end of the mouth mold sets
There are multiple screwed holes being uniformly distributed circumferentially, there is installing hole corresponding with the screwed hole, the end plate on the end plate
Realize being detachably fixed being connected by connecting bolt and the mouth mold.
3. the reducing mold on pipe production line according to claim 1 and 2, it is characterised in that the portion of tightening be
The cross recess depression arranged on the end face of the core termination or regular polygon depression.
4. the reducing mold on pipe production line according to claim 1 and 2, it is characterised in that the portion of tightening be
The many angle heads arranged on the end face of the core termination.
5. the reducing mold on pipe production line according to claim 1, it is characterised in that the extruding end of the mouth mold is also
With a boss, have with the joint face of the mouth mold on the end plate and realize the depression that male-female engagement is connected with the boss.
6. the reducing mold on the pipe production line according to claim 1 or 2 or 5, it is characterised in that adjacent in the perforation
The aperture of one end of the nearly mouth mold gradually increases to form an enlarging.
7. the reducing mold on the pipe production line according to claim 1 or 2 or 5, it is characterised in that the core termination
One end diameter for being provided with the center projection is gradually reduced to form a conical surface.
8. the reducing mold on the pipe production line according to claim 1 or 2 or 5, it is characterised in that the core termination
The one end for being provided with the center projection is additionally provided with a round platform, and the center projection is located at round platform central authorities；On the core
Have female one end and be additionally provided with for falling into for the round platform and realize the lower concave part that male-female engagement connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510211607.9A CN104802387B (en) | 2015-04-29 | 2015-04-29 | Reducing mold on pipe production line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510211607.9A CN104802387B (en) | 2015-04-29 | 2015-04-29 | Reducing mold on pipe production line |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104802387A CN104802387A (en) | 2015-07-29 |
| CN104802387B true CN104802387B (en) | 2017-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510211607.9A Active CN104802387B (en) | 2015-04-29 | 2015-04-29 | Reducing mold on pipe production line |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105058741B (en) * | 2015-09-16 | 2017-10-24 | 成都爆米花信息技术有限公司 | A kind of bidirectional feed Rubber Extruder |
| CN105108995B (en) * | 2015-09-16 | 2017-09-22 | 成都爆米花信息技术有限公司 | A kind of Rubber Extruder |
| CN105538682B (en) * | 2015-12-27 | 2018-05-01 | 西安航天复合材料研究所 | A kind of jet pipe heat insulation layer winding shaping frock |
| CN109203417A (en) * | 2017-07-05 | 2019-01-15 | 新疆天业（集团）有限公司 | The dedicated modified cross head of CPVC tubing |
| CN112549499A (en) * | 2020-12-23 | 2021-03-26 | 临海伟星新型建材有限公司 | Diameter changing device of specification dn63-dn20 for PP-R pipe and method for producing pipe across caliber of diameter changing device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3205822B2 (en) * | 1993-06-17 | 2001-09-04 | 西川ゴム工業株式会社 | Sectional shape variable extrusion molding method |
| CN2882971Y (en) * | 2006-01-20 | 2007-03-28 | 郑汀 | Mould of extruding blowet |
| CN204054600U (en) * | 2014-08-14 | 2014-12-31 | 惠州市德胜电线有限公司 | The external extrusion die of a kind of double-decker sheath |
| CN204673989U (en) * | 2015-04-29 | 2015-09-30 | 重庆伟星新型建材有限公司 | Reducing mold on pipe production line |
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| CN104802387A (en) | 2015-07-29 |
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