CN205130343U - Double -walled bellows forming mechanism - Google Patents
Double -walled bellows forming mechanism Download PDFInfo
- Publication number
- CN205130343U CN205130343U CN201520772221.0U CN201520772221U CN205130343U CN 205130343 U CN205130343 U CN 205130343U CN 201520772221 U CN201520772221 U CN 201520772221U CN 205130343 U CN205130343 U CN 205130343U
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- Prior art keywords
- enlarging
- half module
- inwall
- wall
- die cavity
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Abstract
The utility model relates to a bellows form -ing technology field, a double -walled bellows forming mechanism who provides. This mechanism includes the ripple make -up machine, extruder head and plug, the last inner wall runner that is equipped with of extruder head, intermediate layer air flue and outer wall runner, be equipped with the flaring air flue between extruder head and plug, the outer wall pipe extruded in outer wall runner and inner wall runner and inner wall of tube base are between plug and the make -up machine during shaping, make the flaring air flue stop to blow, strengthen the atmospheric pressure of intermediate layer air flue simultaneously, the gas that the intermediate layer air flue gushed out sticiss the inner wall of tube base on the plug, thereby the double -walled bellows that makes the shaping go out has glossy inner wall.
Description
Technical field
The utility model relates to corrugated pipe forming technical field, provides a kind of double-walled corrugated pipe forming machine structure especially.
Background technology
Existing liquid conducting pipes mainly adopts concrete duct, cast-iron pipe.But weight is large, inwall is rough, transfer efficiency is not high, Corrosion Protection is poor shortcoming that concrete duct, cast-iron pipe exist.
The moulding process of existing plastic conduit mainly adopts fashion of extrusion, blowing mode completes.Extruder equipment is large and heavy, and wastage of material is serious; Blowing mode refers to that plastic conduit raw material becomes fluidization by cylindrical die, and the plastic conduit of first one-step forming and mold outer surface form certain the air gap, and form continuous conduit under pressure.
Double-wall corrugated pipe is a kind of novel tube with circulus outer wall and smooth internal walls, in the blow-moulding process of plastic conduit, plastic conduit inwall fails fully to contact with the outer surface of mould, the inner surface of plastic conduit is made to there is certain roughness, have impact on the speed of plastic conduit conveying fluid on the one hand, reduce transfer efficiency, plastic conduit inwall outward appearance is not good enough on the other hand, does not have aesthetic feeling.
Utility model content
(1) technical problem that will solve
The purpose of this utility model is to provide a kind of shaping mechanism that can mold smooth inner wall double-wall corrugated pipe.
(2) technical scheme
For achieving the above object, the utility model provides a kind of double-walled corrugated pipe forming machine structure, comprising:
Corrugation forming machine, described corrugation forming machine comprises the first enlarging half module along the first annular orbital motion and multiple first half module, and along second circular orbit run the second enlarging half module and multiple second half module, described first enlarging half module is corresponding with the second enlarging half module to be arranged, multiple described first half module is corresponding with multiple described second half module to be arranged, be formed between mould closing section between described first circular orbit and described second circular orbit, the the first enlarging half module moved in described mould closing section forms annular enlarging die cavity with the second enlarging half module matched moulds, move to the ripple forming die cavity that the first half module in described mould closing section and the second half module matched moulds form annular, each die cavity axial seal is connected to form molding space,
Cross-head, described cross-head is axially plugged in described molding space, between the inwall of described cross-head and described molding space, there is annular gap, along the moving direction of described die cavity, described cross-head is circumferentially with successively the outer wall runner of annular, interlayer air flue and inwall runner, described outer wall runner is used for extruding outer wall pipe, and described interlayer air flue is communicated with the first airway, and described first airway is provided with the first air valve; Described interlayer air flue is used for the inwall described outer wall pipe being blowed to described molding space, and described inwall runner is used for extruding inwall pipe; And
Plug, described mandrel axis is to being plugged in described molding space, between the inwall of described plug and described molding space, there is annular gap, on the moving direction of described die cavity, described plug is positioned at the front of described cross-head, the enlarging air flue of annular is formed between described plug and described cross-head, described enlarging air flue is communicated with the second airway, described enlarging air flue is used for the inwall when described enlarging die cavity moves to, described inwall pipe being blowed to described enlarging die cavity, make inwall pipe and the pressing of outer wall pipe, described second airway is provided with the second air valve.
Preferably, the airflow direction in described first airway is adjustable.
Preferably, described first breather line with can the blower fan of double-direction control air-flow be connected.
Preferably, comprise multiple ripple forming die cavity in described molding space, on the moving direction of described die cavity, described cross-head is positioned at the end of described molding space.
Preferably, the sidewall of described first enlarging half module, the second enlarging half module, the first half module and the second half module all offers multiple aspirating hole, and multiple described aspirating hole is connected with air extractor.
Preferably, water-cooled module is provided with in described plug.
Based on a double-wall corrugated pipe forming method for the double-walled corrugated pipe forming machine structure described in above-mentioned any one, comprise the following steps:
S1, move past until described ripple forming chamber, enlarging die cavity is when moving to described cross-head, reduces the air pressure of interlayer air flue, by enlarging air flue inwall pipe blown to be expanded to bond with outer wall pipe simultaneously;
S2, move past until described enlarging die cavity, ripple forming chamber is when moving to described cross-head, increase the air pressure of interlayer air flue, make enlarging air flue stop voltage supply simultaneously, while making interbedded gas outer wall pipe be blown the sidewall being labelled to ripple forming chamber, inwall pipe is overlayed the surface to plug.
Preferably, the air pressure size of interlayer air flue is regulated by the first air valve; The air pressure size of enlarging air flue is regulated by the second air valve.
Preferably, in step S2, provide negative pressure by enlarging air flue, inwall pipe is fitted with the inwall of plug more closely.
(3) beneficial effect
A kind of double-walled corrugated pipe forming machine structure that the utility model provides, comprise corrugation forming machine, cross-head and plug, cross-head is provided with inwall runner, interlayer air flue and outer wall runner, enlarging air flue is provided with between cross-head and plug, when the outer wall pipe extruded in outer wall runner and inwall runner and inwall pipe shaping between plug and forming machine time, enlarging air flue is made to stop blowing, strengthen the air pressure of interlayer air flue simultaneously, inwall pipe is pressed on plug by the gas that interlayer air flue gushes out, thus make the double-wall corrugated pipe molded have smooth inwall.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the double-walled corrugated pipe forming machine structure enlarging state of the utility model embodiment;
Fig. 2 is the schematic diagram of the double-walled corrugated pipe forming machine structure tube wall completed state of the utility model embodiment.
Reference numeral:
1, the first enlarging half module; 2, the first half module; 3, cross-head; 31, outer wall runner; 32, interlayer air flue; 33, inwall runner; 34, enlarging air flue; 35, outer wall pipe; 36, inwall pipe; 4, plug; The moving direction of M, die cavity.
Detailed description of the invention
Below in conjunction with drawings and Examples, detailed description of the invention of the present utility model is described in further detail.Following examples for illustration of the utility model, but are not used for limiting scope of the present utility model.
In description of the present utility model, except as otherwise noted, term " on ", D score, " top ", " bottom ", the orientation of the instruction such as " longitudinal direction " or state relation be based on orientation shown in the drawings or state relation, only the utility model and simplified characterization for convenience of description, instead of the device of instruction or hint indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.
In description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, term " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be directly be connected, also indirectly can be connected by intermediary.For the ordinary skill in the art, concrete condition the concrete meaning of above-mentioned term in the utility model can be understood.
Shown in index map 1 and Fig. 2, the utility model embodiment provides a kind of PE double-walled corrugated pipe forming machine structure, belongs to the mechanism of a core in PE double-wall corrugated pipe production line, and mechanism comprises corrugation forming machine, cross-head 3 and plug 4.
Corrugation forming machine comprises and being driven by transmission mechanism, along a first enlarging half module 1 and multiple first half module 2 of the first annular orbital motion, and the second enlarging half module and multiple second half module that run along the second circular orbit is driven by another transmission mechanism, the diameter of the inner chamber of the first enlarging half module 1 and the second enlarging half module is greater than the intracavity diameter of the first half module 2 and the second half module, the inwall of the first half module 2 and the second half module all offers the semi-circular groove of multiple tracks for shaped outer wall ripple, first enlarging half module 1 is identical with the quantity of the second enlarging half module, is one, corresponding with the rotational orientation on the second circular orbit at the first circular orbit, multiple first half module 2 is identical with the quantity of multiple second half module, the rotational orientation one_to_one corresponding on the first circular orbit and the second circular orbit, be formed between first circular orbit and the second circular orbit between mould closing section, it is straight line section between the mould closing section of the present embodiment, the the first enlarging half module 1 moved in mould closing section forms annular enlarging die cavity with the second enlarging half module matched moulds, move to the ripple forming die cavity that the first half module 2 in mould closing section and the second half module matched moulds form annular, first half module 2 and the second half module Zhong Ge road semi-circular groove docking, form the cannelure that multiple tracks is used for shaping corrugated outer wall, between each adjacent die cavity between shaping area, axial seal crimping forms molding space, namely when in shaping interval be an enlarging die cavity and multiple ripple forming die cavity time, between enlarging die cavity and adjacent ripple forming die cavity, axial seal crimps, when being only multiple ripple forming die cavity in shaping interval, axial seal crimping between adjacent ripple forming die cavity.
Cross-head 3 is axially plugged in molding space, between cross-head 3 and the inwall of molding space, there is annular gap, along the moving direction M of die cavity, cross-head 3 is circumferentially with successively the outer wall runner 31 of annular, interlayer air flue 32 and inwall runner 33, outer wall runner 31 is for extruding outer wall pipe 35; Interlayer air flue 32 is communicated with the first airway, and the first airway is arranged on the inside of cross-head 3, and the first airway is provided with the first air valve; Interlayer air flue 32 is for blowing to the inwall of molding space by outer wall pipe 35, inwall runner 33 is for extruding inwall pipe 36;
Plug 4 is axially plugged in molding space, between plug 4 and the inwall of molding space, there is annular gap, on the moving direction M of die cavity, plug 4 is positioned at the front of cross-head 3, plug 4 and cross-head 3 can connect as one, and be formed with the enlarging air flue 34 of annular between plug 4 and cross-head 3, enlarging air flue 34 is communicated with the second airway, second airway is arranged on the inside of cross-head 3, and the second airway is provided with the second air valve; Inwall pipe 36, for when enlarging die cavity moves to, is blowed to the inwall of enlarging die cavity by enlarging air flue 34, makes inwall pipe 36 and outer wall pipe 35 pressing.
The present embodiment additionally provides a kind of double-wall corrugated pipe forming method, comprises the following steps:
S1, move past until ripple forming chamber, enlarging die cavity is when moving to cross-head 3, reduces the air pressure of interlayer air flue 32, by enlarging air flue 34 inwall pipe 36 blown to be expanded to bond with outer wall pipe 35 simultaneously;
S2, move past until enlarging die cavity, ripple forming chamber is when moving to cross-head 3, increase the air pressure of interlayer air flue 32, make enlarging air flue 34 stop voltage supply simultaneously, while making interbedded gas outer wall pipe 35 be blown the sidewall being labelled to ripple forming chamber, inwall pipe 36 is overlayed the surface to plug 4.
Owing to gushing out without gas in enlarging air flue 34, inwall pipe 36 is firm once extruding the outer surface being pressed to plug 4 by the gas in interlayer air flue 32 from inwall runner 33, can effectively prevent injecting gas between inwall pipe 36 and plug 4, thus make the bellows inwall at shaping place smooth, smooth; The surface of plug 4, preferably through smooth treatment, makes the inwall that molds more smooth, and is provided with water-cooled module in the inside of plug 4, makes inwall pipe 36 can rapid solidification, reduces the friction between plug 4, thus better avoids occurring fold.
The sidewall of the first enlarging half module 1, second enlarging half module, the first half module 2 and the second half module all offers multiple aspirating hole, multiple aspirating hole is connected with air extractor, for when outer wall pipe 35 is affixed to the inwall of each die cavity, air between outer wall pipe 35 and mould intracavity wall is extracted out, make outer wall pipe 35 more fit in mould intracavity wall, make ripple outer wall shaping more regular.
Outer wall pipe 35, in each cannelure in ripple forming chamber, solidifies the outer ripple forming double-wall corrugated pipe; Outer wall pipe 35 and the gap of inwall pipe 36 between ripple forming chamber and plug 4 are by pressing; Inwall pipe 36 attaches to catch a cold after on plug 4 and solidifies, and because inwall pipe 36 closely crimps with plug 4 outer wall, and the outer wall of plug 4 is smooth, therefore the inner wall smooth that molds of inwall pipe 36.
Preferably, first breather line with can the blower fan of double-direction control air-flow be connected, even if the airflow direction in the first airway is adjustable, when operating procedure S2, enlarging air flue 34 does not only provide outside air pressure, and negative pressure can be provided by enlarging air flue 34, inwall pipe 36 is fitted with the inwall of plug 4 more closely, and then molds more smooth inwall.
Multiple ripple forming die cavity is preferably included in molding space, on the moving direction M of each die cavity, cross-head 3 is positioned at the end of molding space, thus after making the inwall of double-wall corrugated pipe shaping, can slide a distance along plug 4 again, the process of this slip not only makes the solidification morphology regional stability of inside and outside wall, but also the inwall of bellows can be made more smooth by the friction of a segment distance.
The above is only preferred embodiment of the present utility model; should be understood that; for those skilled in the art; under the prerequisite not departing from the utility model know-why; can also make some improvement and replacement, these improve and replace and also should be considered as protection domain of the present utility model.
Claims (6)
1. a double-walled corrugated pipe forming machine structure, is characterized in that, comprising:
Corrugation forming machine, described corrugation forming machine comprises the first enlarging half module (1) along the first annular orbital motion and multiple first half module (2), and along second circular orbit run the second enlarging half module and multiple second half module, described first enlarging half module (1) is corresponding with the second enlarging half module to be arranged, multiple described first half module (2) is corresponding with multiple described second half module to be arranged, be formed between mould closing section between described first circular orbit and described second circular orbit, the the first enlarging half module (1) moved in described mould closing section forms annular enlarging die cavity with the second enlarging half module matched moulds, move to the first half module (2) in described mould closing section and the second half module matched moulds forms annular ripple forming die cavity, each die cavity axial seal is connected to form molding space,
Cross-head (3), described cross-head (3) is axially plugged in described molding space, between described cross-head (3) and the inwall of described molding space, there is annular gap, along the moving direction of described die cavity, described cross-head (3) is circumferentially with successively the outer wall runner (31) of annular, interlayer air flue (32) and inwall runner (33), described outer wall runner (31) is for extruding outer wall pipe (35), described interlayer air flue (32) is communicated with the first airway, described first airway is provided with the first air valve, described interlayer air flue (32) is for blowing to the inwall of described molding space by described outer wall pipe (35), described inwall runner (33) is for extruding inwall pipe (36), and
Plug (4), described plug (4) is axially plugged in described molding space, between described plug (4) and the inwall of described molding space, there is annular gap, on the moving direction of described die cavity, described plug (4) is positioned at the front of described cross-head (3), the enlarging air flue (34) of annular is formed between described plug (4) and described cross-head (3), described enlarging air flue (34) is communicated with the second airway, described enlarging air flue (34) is for blowing to the inwall of described enlarging die cavity by described inwall pipe (36) when described enlarging die cavity moves to, make inwall pipe (36) and outer wall pipe (35) pressing, described second airway is provided with the second air valve.
2. double-walled corrugated pipe forming machine structure according to claim 1, is characterized in that, the airflow direction in described first airway is adjustable.
3. double-walled corrugated pipe forming machine structure according to claim 2, is characterized in that, described first breather line with can the blower fan of double-direction control air-flow be connected.
4. double-walled corrugated pipe forming machine structure according to claim 1, is characterized in that, comprises multiple ripple forming die cavity in described molding space, and on the moving direction of described die cavity, described cross-head (3) is positioned at the end of described molding space.
5. double-walled corrugated pipe forming machine structure according to claim 1, it is characterized in that, the sidewall of described first enlarging half module (1), the second enlarging half module, the first half module (2) and the second half module all offers multiple aspirating hole, and multiple described aspirating hole is connected with air extractor.
6. double-walled corrugated pipe forming machine structure according to claim 1, is characterized in that, described plug is provided with water-cooled module in (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520772221.0U CN205130343U (en) | 2015-09-30 | 2015-09-30 | Double -walled bellows forming mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520772221.0U CN205130343U (en) | 2015-09-30 | 2015-09-30 | Double -walled bellows forming mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205130343U true CN205130343U (en) | 2016-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520772221.0U Expired - Fee Related CN205130343U (en) | 2015-09-30 | 2015-09-30 | Double -walled bellows forming mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205130343U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115782031A (en) * | 2023-02-09 | 2023-03-14 | 浙江建华集团盛太塑料有限公司 | Pearl cotton production equipment and process |
-
2015
- 2015-09-30 CN CN201520772221.0U patent/CN205130343U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115782031A (en) * | 2023-02-09 | 2023-03-14 | 浙江建华集团盛太塑料有限公司 | Pearl cotton production equipment and process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160406 Termination date: 20170930 |
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| CF01 | Termination of patent right due to non-payment of annual fee |