CN207983947U - Heating structure in a kind of double-wall corrugated pipe extrusion die - Google Patents
Heating structure in a kind of double-wall corrugated pipe extrusion die Download PDFInfo
- Publication number
- CN207983947U CN207983947U CN201820013716.9U CN201820013716U CN207983947U CN 207983947 U CN207983947 U CN 207983947U CN 201820013716 U CN201820013716 U CN 201820013716U CN 207983947 U CN207983947 U CN 207983947U
- Authority
- CN
- China
- Prior art keywords
- support tube
- helicla flute
- extrusion die
- heating element
- double
- 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.)
- Active
Links
Landscapes
- Resistance Heating (AREA)
- Pipe Accessories (AREA)
Abstract
The utility model discloses heating structures in a kind of double-wall corrugated pipe extrusion die, heating element including strip and the temperature controller for controlling temp of heating element, it is inserted with support tube in the central passage of extrusion die, it is equipped in support tube into water return pipeline, the lateral wall of the support tube is equipped with storage tank and at least one helicla flute, the outer end face being located on the outer end perforation support tube of the helicla flute outside central passage, the heating element is embedded in helicla flute, it is embedded with temperature control element in the storage tank, the heating element and temperature control element are electrically connected with temperature controller respectively.The utility model facilitates the installation of pipe with small pipe diameter double-wall corrugated pipe extrusion die internal heater, to be conducive to improve the production efficiency and yield rate of double-wall corrugated pipe.
Description
Technical field
The utility model is related to plastic molding machinery technical fields, more particularly, in a kind of double-wall corrugated pipe extrusion die
Heating structure.
Background technology
Double-wall corrugated pipe is a kind of novel tube with cyclic structure outer wall and smooth internal walls, and operating temperature is subzero
Between 40 DEG C to 60 DEG C, and intensity is high, and anti-seismic performance is strong, and the resistance of fluids within pipes is small, fast due to its superior performance
Speed is widely applied.Double-wall corrugated pipe is generally by extrusion molding, in the prior art, double-wall corrugated for producing
The internal heater of cast aluminum heaters or mica heater etc is usually set in the central passage of the extrusion die of pipe.However work as
When the caliber of double-wall corrugated pipe is smaller, also correspondingly reduced for producing the size of extrusion die of double-wall corrugated pipe, and squeeze
Go out in the central passage of die head also to need to wear corresponding water inlet and therefore water return pipeline is difficult in the central passage of extrusion die
The internal heater for being arranged and installing existing cast aluminum heaters or mica heater etc, in particular, when the length of central passage
When degree is longer, the above problem can be more serious, and the extrusion die without setting internal heater can greatly influence double-wall corrugated pipe
Yield rate and production efficiency.
Utility model content
Purpose of the utility model is to solve for being molded present in the double-wall corrugated pipe extrusion die of pipe with small pipe diameter
The problem of difficult yield rate and production efficiency to influence double-wall corrugated pipe is arranged in internal heater, provides a kind of double-wall corrugated
Heating structure in pipe extrusion die facilitates the installation of pipe with small pipe diameter double-wall corrugated pipe extrusion die internal heater, to be conducive to carry
The production efficiency and yield rate of high double-wall corrugated pipe.
To achieve the goals above, the utility model uses following technical scheme：
Heating structure in a kind of double-wall corrugated pipe extrusion die, including the heating element of strip and for controlling heating element
The temperature controller of temperature, support tube is inserted in the central passage of extrusion die, is equipped in support tube into water return pipeline, institute
The lateral wall for stating support tube is equipped with storage tank and at least one helicla flute, is located on the outer end perforation support tube of the helicla flute
Outer end face outside central passage, the heating element are embedded in helicla flute, and temperature control element, institute are embedded in the storage tank
It states heating element and temperature control element is electrically connected with temperature controller respectively.
A support tube is arranged in the utility model in the central passage of extrusion die, and is set on the lateral wall of support tube
Helicla flute is set, in this way, the strip heating element of electric heating item etc can be easily helically embedded in helicla flute by we, so
Support tube is inserted into the central passage of extrusion die again afterwards, to greatly simplify the installation of heating element.In particular, for
Diameter is smaller, for the longer extrusion die of length, and the technical solution of the utility model can ensure that extrusion die is conveniently set up
Inner heating device, and can also easily being worn into water return pipeline in support tube, at the same avoid heating element with into return pipe
Being in direct contact between road.Since heating element is embedded in helicla flute, make heating element can be to extrusion die capitiform
At heating evenly.It can be understood that by the effect of temperature control element and temperature controller, we can accurately control heating unit
The heating temperature of part, and the temperature control element being arranged in the storage tank of support tube lateral wall can accurate inductive heating element to squeezing out
The heating temperature of die head.
Preferably, the quantity of the helicla flute is 2, and it is spaced apart on the circumferencial direction of support tube, spiral
The inside and outside both ends of slot penetrate through the interior outer end face of support tube respectively, and 2 helicla flutes are passing through lead-over groove at support tube inner face
It is connected, the storage tank is located at the centre position of central passage length direction, and one is additionally provided on the lateral wall of support tube
Spiral helicine guiding groove, the outer end face of described guiding groove one end perforation support tube, the other end are connected to storage tank, in the guiding groove
Connecting wire equipped with connection temperature control element and temperature controller.
Since support pipe surface is equipped with 2 helicla flutes, in this way, we can make the heating element of strip first by the outer of support tube
End is embedded to inner end in a helicla flute, is then embedded after bending at lead-over groove in another helicla flute, to make to add
Two control terminals of thermal element are respectively positioned on the outer end of support tube, have not only facilitated the arrangement of circuit, but also be conducive to the uniform of heating element
Heating.And temperature control element is embedded the connecting wire in the guiding groove of support pipe surface by helical form and is connected with temperature controller,
So as to make to form uniform spacing between connecting wire and heating element.
Preferably, the heating element is glass fibre heating tape.Glass fibre heating tape both has good insulation
Performance and high temperature resistance, and it can be easily bent winding, to be conducive to the arrangement in support pipe surface.
Preferably, being wound with Furtulon high temperature adhesive tape on the outside of support tube.Furtulon high temperature adhesive tape can bear to heat
The high temperature that element generates, while preferable insulation protection can be formed to heating element, so that heating element is formed one with support tube
It is whole, facilitate support tube to be plugged into the central passage of extrusion die.
Preferably, the cross section of the helicla flute is rectangular, the central passage madial wall of extrusion die is equipped with and spiral shell
Spin slot corresponding limiting slot is embedded with the insulation strip of elasticity in limiting slot, and the height of the insulation strip is more than the depth of limiting slot,
To make insulation strip be higher by the side limit of limiting slot in helicla flute and compress the heating element in helicla flute.
In this scenario, limiting slot corresponding with the helicla flute of support tube is set on central passage madial wall, and is being limited
Setting height is more than the insulation strip of limit groove depth in slot, in this way, insulation strip be higher by limiting slot part can enter it is corresponding
Heating element is compressed in helicla flute, you can good positioning and insulation are formed to heating element, while being connected across limiting slot and spiral shell
Insulation strip between spin slot is conducive to make to form reliable positioning between support tube and extrusion die.
Therefore, the utility model has the advantages that：Facilitate pipe with small pipe diameter double-wall corrugated pipe extrusion die internal heater
Installation, to be conducive to improve double-wall corrugated pipe production efficiency and yield rate.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of the utility model.
Fig. 2 is a kind of structural schematic diagram of support tube.
Fig. 3 is another partial structural diagram of the utility model.
Fig. 4 is a kind of structural schematic diagram of insulation strip.
In figure：1, extrusion die 11, central passage 12, limiting slot 2, support tube 21, helicla flute 22, accommodating
Slot 23, lead-over groove 24, guiding groove 3, heating element 4, temperature control element 5, into water return pipeline 6, insulation strip 61,
Crimp item 62, transition strips 621, notch.
Specific implementation mode
The utility model is further described with specific implementation mode below in conjunction with the accompanying drawings.
As shown in Figure 1 and Figure 2, heating structure in a kind of double-wall corrugated pipe extrusion die has one at the center of extrusion die
The central passage 11 of a cylinder specifically includes the heating element 3 of strip, for the temperature control element 4 of sensing temperature and for controlling
The temperature controller of temp of heating element processed（It is not shown in figure）, cylindrical support tube is inserted in the central passage of extrusion die
2, it is equipped in support tube into water return pipeline 5, heating element and temperature control element are arranged on support tube lateral wall.It can manage
Solution, heater element tool is there are two control terminal, and the control terminal of heater element should be electrically connected with temperature controller, and temperature control element then has
One signal output end, the signal output end should be electrically connected with temperature controller.In this way, when we set heating temperature on temperature controller
After degree, you can start heating element fever, temperature control element exports a corresponding electric signal after sensing temperature to temperature controller；
When the temperature of heating element reaches setting value, temperature controller can add according to the electric signal control of the temperature control element output received
The working condition of thermal element, to make the temperature of heating element control in the range of setting.Due to being used for form double wall ripple
The extrusion die of pipe and corresponding temp of heating element control mode belong to the prior art, therefore, are not done in the present embodiment
More descriptions.
For the ease of installation, a storage tank 22 and at least one helicla flute can be arranged in we on the lateral wall of support tube
21, the outer end face of the outer end perforation support tube of helicla flute, and the heating element of strip is embedded in helicla flute.In addition, temperature control is first
Part is arranged in storage tank, and heating element and temperature control element are electrically connected by connecting wire with temperature controller respectively.It needs to illustrate
It is that the cross section of helicla flute is preferably rectangular, consequently facilitating heating element is embedded；Thermocouple can be used in temperature control element, and
And the point midway that central passage length direction is corresponded on support tube should be preferably arranged in storage tank, to be conducive to accurately
Control the heating temperature of heating element.In addition, support tube, which is located at one end in central passage, in the present embodiment is known as inner end,
One end outside central passage is known as outer end.
When installation, the heating element of heating wire one kind first first can be helically embedded the spiral in support pipe surface by we
In slot, then support tube is inserted into the central passage of extrusion die again, can be worn into water return pipeline in support tube at this time.
Certainly, as shown in Fig. 2, also two helicla flutes can be arranged on the surface of support tube in we, and two helicla flutes exist
It is spaced apart on the circumferencial direction of support tube, the inside and outside both ends of helicla flute penetrate through the interior outer end face of support tube, two spirals respectively
Slot is being connected at support tube inner face by lead-over groove 23.In this way, we can first be incited somebody to action by the outer end of support tube to inner end
Heating element is embedded in first helicla flute, is then embedded in lead-over groove after the inner end of the helicla flute is by heating element bending
It is interior, it will from the inside to the outside be embedded in Article 2 helicla flute after heating element bending again later, to make two of heating element
Control terminal is respectively positioned on the outer end of support tube, to facilitate arrangement and the connection of the connecting wire of connection heating element and temperature controller, and
And increase the layout density of support pipe surface heating element, to be conducive to being evenly heated for heating element again.
Analogously, a spiral helicine guiding groove 24, guiding groove one can be also arranged in we on the lateral wall of support tube
The outer end face of end perforation support tube, the other end are connected to storage tank, the connection of connection temperature control element and temperature controller are arranged in guiding groove
Conducting wire.Preferably, the screw pitch of guiding groove should be equal with the screw pitch of helicla flute, and two helicla flutes are in the circumferencial direction of support tube
On be uniformly distributed.And guiding groove is then arranged between two helicla flutes, and guiding groove is equal with the spacing of two helicla flutes.
Preferably, glass fibre heating tape can be used in heating element, to make heating element have good insulation performance
And high temperature resistance, and can easily be bent wound on support pipe surface.
In addition, we can also wind Furtulon high temperature adhesive tape on the outside of support tube, to make heating element, temperature control element etc.
An entirety is formed in support tube, support tube is facilitated to insert as arrived in the central passage of extrusion die, and heat safe Teflon is high
Warm adhesive tape can form heating element preferable insulation protection and fixation, and heating element is avoided to be taken off out of support tube helicla flute
Go out.
As a kind of alternative solution to Furtulon high temperature adhesive tape, as shown in figure 3, we can be logical at the center of extrusion die
Limiting slot corresponding with helicla flute 12 is set on road madial wall, that is to say, that limiting slot and helicla flute are combined together structure at this time
At a helical duct.The insulation strip 6 of elasticity is embedded in limiting slot, the height of the insulation strip is more than the depth of limiting slot, from
And the inner side limiting-position that insulation strip is higher by limiting slot is made to compress the heating unit in helicla flute on the inside of insulation strip at this time in helicla flute
Part makes heating element reliable location, and is conducive to improve the insulation performance of heating element, due to distinguishing inside and outside insulation strip
It is connected across in helicla flute and limiting slot, therefore is conducive to make to form reliable axially position between support tube and extrusion die.
Specifically, insulation strip can be installed in limiting slot by the following method：
A. two helicla flutes and a lead-over groove are processed on the lateral wall of support tube, two helicla flutes are in support tube
Circumferencial direction on be spaced apart, lead-over groove is set, and is set between the helicla flute close to support tube inner face, it is preferable that lead-over groove
Semicircular in shape, to make the both ends of lead-over groove be connect respectively with helicla flute rounding off；
B. it is produced using insulation strip made of silicon rubber with molded method, as shown in figure 4, insulation strip includes
Two spiral helicine crimping items 61 and the transition strips 62 being integrally attached between the end of two crimping items, crimp item
Central diameter should be less than the central diameter of helicla flute, it is preferable that the central diameter for crimping item is the half of helicla flute central diameter to 3/4ths.
In addition, the height of crimping item should be greater than the depth of limiting slot, it is preferable that crimping the height of item should wait plus the thickness of heating element
The depth of helicla flute is added in the depth of limiting slot, to enable crimping item reliably to compress the heating element in helicla flute；
C. heating element is embedded in first helicla flute, then will be embedded in lead-over groove after heating element bending,
It by heating element bending and is embedded in Article 2 helicla flute again；
D. it struts first in insulation strip crimping item and is embedded it from outside to inside in first helicla flute, so
Transition strips are embedded in lead-over groove afterwards, then struts the Article 2 crimping article in insulation strip and is embedded it from the inside to the outside the
In two helicla flutes, item is crimped at this time and shrinks generation elasticity, to closely cover the heating element in helicla flute, crimping therein
Item is higher by helicla flute；
E., support tube inner end is aligned to the central passage of extrusion die, is higher by the crimping item alignment of support tube outer surface
Limiting slot on heart channel, then axials advancement support tube on one side rotate while, and the crimping item on support tube enters spiral shell at this time
In the limiting slot for revolving shape.In order to avoid the interference of transition strips, a notch 621 can be arranged in the outside of transition strips in we, to
The height of transition strips is set to be less than the height of crimping item, to ensure that transition strips are trapped in lead-over groove completely；
F. when support tube axial advancement in place when, crimp and fitted in limiting slot on the outside of item, crimping item be higher by limiting slot
Inner side limiting-position in helicla flute and compress the heating element in helicla flute, to complete the installation of insulation strip.
Claims (5)
1. heating structure in a kind of double-wall corrugated pipe extrusion die, including the heating element of strip and for controlling heating element temperature
The temperature controller of degree, characterized in that be inserted with support tube in the central passage of extrusion die, be equipped in support tube into return water
The lateral wall of pipeline, the support tube is equipped with storage tank and at least one helicla flute, the outer end perforation support of the helicla flute
The outer end face being located on pipe outside central passage, the heating element are embedded in helicla flute, and temperature is embedded in the storage tank
Element is controlled, the heating element and temperature control element are electrically connected with temperature controller respectively.
2. heating structure in a kind of double-wall corrugated pipe extrusion die according to claim 1, characterized in that the helicla flute
Quantity be 2, and be spaced apart on the circumferencial direction of support tube, the inside and outside both ends of helicla flute penetrate through support tube respectively
Interior outer end face, 2 helicla flutes are being connected at support tube inner face by lead-over groove, and the storage tank is located at central passage
The centre position of length direction is additionally provided with a spiral helicine guiding groove, described guiding groove one end on the lateral wall of support tube
The outer end face of support tube is penetrated through, the other end is connected to storage tank, the company of connection temperature control element and temperature controller is equipped in the guiding groove
Connect conducting wire.
3. heating structure in a kind of double-wall corrugated pipe extrusion die according to claim 1, characterized in that the heating unit
Part is glass fibre heating tape.
4. heating structure in a kind of double-wall corrugated pipe extrusion die according to claim 1, characterized in that outside support tube
Side is wound with Furtulon high temperature adhesive tape.
5. heating structure in a kind of double-wall corrugated pipe extrusion die according to claim 1, characterized in that the helicla flute
Cross section it is rectangular, the central passage madial wall of extrusion die is equipped with limiting slot corresponding with helicla flute, and limiting slot embeds
If flexible insulation strip, the height of the insulation strip is more than the depth of limiting slot, to make insulation strip be higher by the one of limiting slot
Lateral spacing position is in helicla flute and compresses the heating element in helicla flute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820013716.9U CN207983947U (en) | 2018-01-03 | 2018-01-03 | Heating structure in a kind of double-wall corrugated pipe extrusion die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820013716.9U CN207983947U (en) | 2018-01-03 | 2018-01-03 | Heating structure in a kind of double-wall corrugated pipe extrusion die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207983947U true CN207983947U (en) | 2018-10-19 |
Family
ID=63818859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820013716.9U Active CN207983947U (en) | 2018-01-03 | 2018-01-03 | Heating structure in a kind of double-wall corrugated pipe extrusion die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207983947U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108297377A (en) * | 2018-01-03 | 2018-07-20 | 浙江双林机械股份有限公司 | A kind of double-wall corrugated pipe extrusion die inner heating device |
| CN111070613A (en) * | 2020-01-06 | 2020-04-28 | 姚春祥 | Electromagnetic heating extruder equipment for PVC composite pipe |
-
2018
- 2018-01-03 CN CN201820013716.9U patent/CN207983947U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108297377A (en) * | 2018-01-03 | 2018-07-20 | 浙江双林机械股份有限公司 | A kind of double-wall corrugated pipe extrusion die inner heating device |
| CN108297377B (en) * | 2018-01-03 | 2019-12-20 | 浙江双林机械股份有限公司 | Heating device in double-wall corrugated pipe extrusion die head |
| CN111070613A (en) * | 2020-01-06 | 2020-04-28 | 姚春祥 | Electromagnetic heating extruder equipment for PVC composite pipe |
| CN111070613B (en) * | 2020-01-06 | 2020-12-08 | 嘉兴金旅燕科技有限公司 | Electromagnetic heating extruder equipment for PVC composite pipe |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2033491B1 (en) | A heat transfer device | |
| CN207983947U (en) | Heating structure in a kind of double-wall corrugated pipe extrusion die | |
| CN201333799Y (en) | Convenient temperature control energy-saving heater for plastic processing machinery | |
| CN108297377A (en) | A kind of double-wall corrugated pipe extrusion die inner heating device | |
| CN210722571U (en) | Segmented Cable Cooling System | |
| CN205228057U (en) | Online steel wire quick drying device | |
| CN201052651Y (en) | Material cylinder device for plastics extrusion machine | |
| CN206743575U (en) | A kind of high-performance electric heating tube | |
| CN201463219U (en) | Rapid spiral casing heating device | |
| CN204787287U (en) | Add fever type water heater water pipe | |
| CN205265937U (en) | Heat power adjustable carbon fiber line that generates heat | |
| CN104159342A (en) | Electric heating steel pipe of heat exchanger | |
| CN212996241U (en) | Heating toilet cover with internal polymerization electric heating element | |
| CN2343906Y (en) | PTC automatic temp.-limiting electric heating blanket | |
| CN221611594U (en) | Heating device | |
| CN211831209U (en) | Sectional heater | |
| CN201333800Y (en) | Nanometer energy-saving infrared heater for plastic processing machinery | |
| CN203472124U (en) | Cooling device of extruder | |
| CN214947282U (en) | Frost crack prevention water pipe | |
| CN208090937U (en) | Air energy thermal source pumps the air energy low-temperature auxiliary electromagnetic heating device of heating equipment | |
| CN207395176U (en) | A kind of ring shaped conductor electromagnetic heater | |
| CN215337046U (en) | liquid heater | |
| CN221082729U (en) | Combined heating type ceramic atomizing core | |
| CN106552306A (en) | A kind of heater for tube for transfusion heating tail end and preparation method thereof | |
| CN218196850U (en) | Oil temperature conduction unit type heating device for die head of pearl wool extruder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: Hangzhou City, Zhejiang province 311100 Yuhang District of Yuhang Economic Development Zone No. 111 Tian He Lu Patentee after: Zhejiang double forest environment Limited by Share Ltd Address before: Hangzhou City, Zhejiang province 311100 Yuhang District of Yuhang Linping Economic Development Zone No. 111 Tian He Lu Patentee before: Zhejiang two woods machinery limited company |