CN207772377U - Dual channel PVC foam plate extrusion die - Google Patents
Dual channel PVC foam plate extrusion die Download PDFInfo
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- CN207772377U CN207772377U CN201820166547.2U CN201820166547U CN207772377U CN 207772377 U CN207772377 U CN 207772377U CN 201820166547 U CN201820166547 U CN 201820166547U CN 207772377 U CN207772377 U CN 207772377U
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- foam plate
- pvc foam
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- dual channel
- extrusion die
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Abstract
The utility model discloses a kind of dual channel PVC foam plate extrusion die, belong to plastic extrusion technical field, the technical problem that the production efficiency that has of PVC foam plate extrusion die that solves the prior art is not high, product quality is bad, the dual channel PVC foam plate extrusion die of the utility model eliminates throttle bar structure and upper and lower die lip configurations, coldplate compared with the prior art, reduce the dead angle of junction, die internal runner lines are more smooth, production efficiency higher；By the way that at least one compression unit and at least one enlarging section are arranged on first flow and second flow channel so that material discharges, and speed is uniform, and product surface is more bright and clean, and product quality is more preferable.
Description
Technical field
The utility model is related to plastic extrusion technical field, more particularly to a kind of dual channel PVC foam plate extrusion die.
Background technology
PVC foam plate has the characteristics such as waterproof, fire-retardant, acid and alkali-resistance, mothproof, light, heat preservation, sound insulation, damping, be timber,
The ideal substitute of aluminium, composite board, is with a wide range of applications.PVC foam plate is produced by extrusion die.Root
Shown in attached drawing 1, the dual channel foamed board extrusion die of the prior art includes upper die body 11, middle die body 12, lower mold body 13, mold core
14, wherein upper die body 11 and lower mold body 13 is equipped with choked flow stick 15, is respectively used to adjust the gap of first flow and second flow channel,
To adjust the flow of material.It is designed with die lip 16 in upper die body 11 and lower mold body 13, the plate for adjusting production different model
Material.Die lip is equipped with coldplate 17, the surface skining hardness for adjusting plank.PVC dual channel foamed board extrusion dies before this
Head is all made of electric heating tube in drier stick 18 to control the temperature of each heating zone of die head.
However, existing extrusion die using when need to adjust the position of throttle bar and die lip and replace different coolings
Plate, to adapt to the needs of working condition.During the adjustment, rejection rate can be increased, production cost is improved, also reduce simultaneously
Working efficiency；It is high to production line operation individual skill level requirement when existing extrusion die uses simultaneously, nonetheless, adjusting
In whole process, also still it is difficult to hold the uniformity of flow, causes the surface of plank skinning cortex not clean, be also easy to produce mechanical item
Line；Existing dual channel PVC foam plate extrusion die is heated using built-in stainless steel electrically heated rod, and such mode of heating is one
Determine the more difficult temperature for accurately controlling die head in degree, temperature change bounce is big, to keep the molten condition of raw material different, leads
Each point stress is different after causing plank to go out die orifice cooling, warping phenomenon occurs, while PVC material is more sensitive to temperature, is easy
Overheating problem is caused, to make raw material decomposes, changes the original characteristic of raw material.
Utility model content
In order to solve the above-mentioned technical problem, the purpose of this utility model is to provide a kind of production efficiency higher, product quality
Better dual channel PVC foam plate extrusion die.
In order to realize the purpose of above-mentioned utility model, the utility model adopts the following technical solution：
A kind of dual channel PVC foam plate extrusion die, including the upper die body, middle die body and the lower mold body that set gradually, it is described
Middle die body has first flow, the middle die body between the upper and lower die body between the upper die body and the middle die body
There is second flow channel between the lower mold body, have between the upper and lower die body be respectively connected with first and second runner it is logical
Feed inlet, have between the upper and lower die body and intersect the discharge port being compiled at one with first and second runner, it is described above and below
It is being fixedly installed mold core positioned at the front end of the middle die body between die body, is being had at least one on first and second runner
Enlarging section at compression unit and at least one, be provided in the upper and lower die body for respectively to the first and second runner heat supply plus
Thermal, the front end of the upper and lower die body have the regulating tank for adjusting the discharge port size, the upper and lower die body
Front end be provided with and the matched regulating part of the regulating tank.
In above-mentioned technical proposal, it is preferred that the heating device includes being separately positioned in the upper and lower die body and being used for
It is passed through the thermal trough of the heat conduction medium of cycle, the both ends of the thermal trough have the thermal hole being connected with the external world.
In above-mentioned technical proposal, it is preferred that the heat conduction medium is water/oil.
In above-mentioned technical proposal, it is preferred that the mold core have the pumping slot that is communicated respectively with first and second runner with
And the aspirating hole communicated with the pumping slot.
In above-mentioned technical proposal, it is preferred that there is multiple compression units and multiple enlarging sections, phase on first and second runner
There are one enlarging sections for tool between adjacent two compression units.
In above-mentioned technical proposal, it is preferred that there is the first compression unit, the successively from back to front on first and second runner
One enlarging section, the second compression unit, the second enlarging section, third compression unit, third enlarging section.
In above-mentioned technical proposal, it is preferred that the section of the regulating tank takes the shape of the letter U.
In above-mentioned technical proposal, it is preferred that the regulating part is the adjusting screw being threadedly coupled with the regulating tank.
The utility model obtains following advantageous effect compared with prior art：The dual channel PVC foam plate of the utility model
Extrusion die eliminates throttle bar structure and upper and lower die lip configurations, coldplate compared with the prior art, reduces the dead of junction
Angle, die internal runner lines are more smooth, production efficiency higher；By the way that at least one is arranged on first flow and second flow channel
A compression unit and at least one enlarging section so that material discharges, and speed is uniform, and product surface is more bright and clean, and product quality is more preferable.
Description of the drawings
Attached drawing 1 is the dual channel foamed board extrusion die structural schematic diagram of the prior art；
Attached drawing 2 is the schematic cross-section of the utility model dual channel PVC foam plate extrusion die；
Attached drawing 3 is the flow passage structure schematic diagram of the utility model dual channel PVC foam plate extrusion die；
Wherein：11, upper die body；12, middle die body；13, lower mold body；14, mold core；15, choked flow stick；16, die lip；17, cooling
Plate；18, electrically heated rod；100, dual channel PVC foam plate extrusion die；21, upper die body；22, middle die body；23, lower mold body；24、
Mold core；25, heating device；251, thermal trough；252, thermal hole；26, regulating tank；27, regulating part；31, first flow；32,
Two runners；33, feed inlet；34, discharge port；A, the first compression unit；B, the first enlarging section；C, the second compression unit；D, the second amplification
Portion；E, third compression unit；F, third enlarging section.
Specific implementation mode
For technology contents, construction feature, institute's reached purpose and effect of utility model is described in detail, below in conjunction with implementation
Example simultaneously coordinates attached drawing to be described in detail.Wherein, the overlying relation described in the present embodiment and attached double fluid shown in Fig. 2
The overlying relation of road PVC foam plate extrusion die is corresponding, the front and back position relationship and attached double fluid shown in Fig. 2
The left and right position relationship of road PVC foam plate extrusion die is corresponding.
With reference to the accompanying drawings shown in 1, the dual channel foamed board extrusion die of the prior art include upper die body 11, middle die body 12, under
Die body 13, mold core 14, wherein upper die body 11 and lower mold body 13 are equipped with choked flow stick 15, are respectively used to adjust first flow and second
The gap of runner, to adjust the flow of material.It is designed with die lip 16 in upper die body 11 and lower mold body 13, for adjusting production not
With the plank of model.Die lip is equipped with coldplate 17, the surface skining hardness for adjusting plank.PVC dual channels hair before this
Bubble plate extrusion die is all made of electric heating tube in drier stick 18 to control the temperature of each heating zone of die head.However, existing extrusion die
It needs to adjust the position of throttle bar and die lip when use and replaces different coldplates.To adapt to the needs of working condition, adjusting
During whole, rejection rate can be increased, improve production cost, while also reducing working efficiency；Existing extrusion die simultaneously
It is high to production line operation individual skill level requirement when use, nonetheless, during adjustment, also still it is difficult to hold stream
The uniformity of amount causes the surface of plank skinning cortex not clean, is also easy to produce mechanical striped；Existing dual channel PVC foam plate squeezes
Go out die head to heat using built-in stainless steel electrically heated rod, such mode of heating is more difficult to a certain extent accurately to control die head
Temperature, temperature change bounce is big, to keep the molten condition of raw material different, plank is caused to go out each point stress after die orifice cooling
It is different, warping phenomenon occurs, while PVC material is more sensitive to temperature, be easy to cause overheating problem, to make raw material point
Solution, changes the original characteristic of raw material.
With reference to the accompanying drawings shown in 2, the dual channel PVC foam plate extrusion die 100 of the utility model is upper including setting gradually
Die body 21, middle die body 22 and lower mold body 23, wherein middle die body 22 between upper and lower die body, upper die body 21 and middle die body 22 it
Between there is first flow 31, there is second flow channel 32 between middle die body 22 and lower mold body 23, have between upper and lower die body and the
One, two runners are respectively connected with logical feed inlet 33, and feed inlet 33 is located at the rear end of upper and lower die body；Have between upper and lower die body
Intersect the discharge port 34 being compiled at one with the first and second runner, discharge port 34 is located at the front end of upper and lower die body.Upper and lower die body it
Between be fixedly installed mold core 24 positioned at the front end of middle die body 22, the front end of middle die body 22 is provided with caulking groove, and mold core 24 is solid
Surely it is inlaid in caulking groove.In order to ensure the production technology temperature of material in the first and second runner, it is arranged in upper and lower die body useful
In the heating device 25 for giving the first and second runner heat supply respectively, wherein heating device 25 includes being separately positioned on the upper and lower mould
The thermal trough 251 of heat conduction medium in vivo and for being passed through cycle, the both ends of thermal trough 251 have the heat conduction being connected with the external world
Hole 252, in the present embodiment, heat conduction medium are water or oil, preferably oil, and deep fat is passed through come to the first and second runner by cycle
Heat supply, can be by external oily die temperance control device come Precise Control of Oil Temperature, and then realizes to the accurate temperature adjustment of the first and second runner, makes
In the first and second runner temperature be more uniformly distributed, avoid generating PVC molten conditions because temperature change bounce is big and differing and raw material paste
Expect phenomenon（Raw material thickener phenomenon herein refer to raw material due to high temperature decompose equal feed changes primary characteristic the phenomenon that）, this
Outside, PVC foam board assembly line is equipped with die heater mostly, and the purchase of electrically heated rod can be saved by way of this oil heating
It sets and replaces, energy consumption and cost are lower.For the ease of adjusting the size of discharge port 33, simplifying dual channel PVC foam plate extrusion die
First 100 structure considers, to adapt to the product of production different size（Such as the product that thickness, size differ）, in upper and lower die body
Front end be provided with the regulating tank 26 for adjusting 33 size of discharge port, the front end of upper and lower die body is provided with and regulating tank
26 matched regulating parts 27, in the present embodiment, regulating part 27 are the adjusting screw being threadedly coupled with regulating tank 26.Regulating tank
26 section takes the shape of the letter U, and adjusting screw is by precession or screws out regulating tank 26, and then adjusts discharge port 33 and increase or reduce.It compares
In the prior art, the dual channel PVC foam plate extrusion die 100 of the present embodiment can manufacture the product of different size, eliminate
The case where replacing die lip and coldplate back and forth, it is simple in structure, it can easily be accommodated.
With reference to the accompanying drawings shown in 3, the dual channel PVC foam plate extrusion die 100 in the present embodiment eliminates the knot of choked flow stick
Structure adjusts the flow of the first and second runner by being provided with multiple compression units and multiple enlarging sections on the first and second runner,
In, there are one enlarging sections for setting between two neighboring compression unit.In the present embodiment, it is preferred that on the first and second runner after
It is disposed with the first compression unit A, the first enlarging section B, the second compression unit C, the second enlarging section D, third compression unit E, forward
Three enlarging section F.First and second runner passes through the structure design of this three stage compression amplification, in order to keep material discharging speed uniform,
In addition, the lines of the first and second runner are more smooth, reduce the dead angle of junction, it is thus possible to improve product surface is bright and clean
Degree.May be retained when material in first and second runner converges at discharge port 33, between two strands of materials has gas, therefore, in mould
The aspirating hole for being provided with the pumping slot communicated respectively with the first and second runner on core 24 and being communicated with this pumping slot, for evacuating
The gas retained between material in first and second runner when discharge port 33 converges so that the material in the first and second runner is going out
When converging at material mouth 33 it is compound more closely, improve the quality of product.
Above-described embodiment is only the technical concepts and features for illustrating the utility model, and its object is to allow be familiar with technique
Personage can understand the content of the utility model and implement according to this, the scope of protection of the utility model can not be limited with this.
It is all according to equivalent change or modification made by the spirit of the present invention, should be covered within the scope of the utility model.
Claims (8)
1. a kind of dual channel PVC foam plate extrusion die, it is characterised in that：Including the upper die body set gradually（21）, middle die body
（22）And lower mold body（23）, the middle die body（22）Between the upper and lower die body, the upper die body（21）With the middle mould
Body（22）Between have first flow（31）, the middle die body（22）With the lower mold body（23）Between have second flow channel
（32）, have between the upper and lower die body and be respectively connected with logical feed inlet with first and second runner（33）, the upper and lower mould
Have between body and intersects the discharge port being compiled at one with first and second runner（34）, positioned at institute between the upper and lower die body
State middle die body（22）Front end be fixedly installed mold core（24）, have on first and second runner at least one compression unit and
Enlarging section at least one is provided in the upper and lower die body for respectively to the heating device of the first and second runner heat supply
（25）, the front end of the upper and lower die body has for adjusting the discharge port（33）The regulating tank of size（26）, it is described it is upper,
The front end of lower mold body is provided with and the regulating tank（26）Matched regulating part（27）.
2. dual channel PVC foam plate extrusion die according to claim 1, it is characterised in that：The heating device（25）
Thermal trough including being separately positioned on the heat conduction medium in the upper and lower die body and for being passed through cycle（251）, the thermal trough
（251）Both ends have and the extraneous thermal hole being connected（252）.
3. dual channel PVC foam plate extrusion die according to claim 2, it is characterised in that：The heat conduction medium be water/
Oil.
4. dual channel PVC foam plate extrusion die according to claim 1, it is characterised in that：The mold core（24）Have
The pumping slot communicated respectively with first and second runner and the aspirating hole communicated with the pumping slot.
5. dual channel PVC foam plate extrusion die according to claim 1, it is characterised in that：On first and second runner
With multiple compression units and multiple enlarging sections, there are one enlarging sections for tool between two neighboring compression unit.
6. dual channel PVC foam plate extrusion die according to claim 1, it is characterised in that：On first and second runner
There is the first compression unit successively from back to front（A）, the first enlarging section（B）, the second compression unit（C）, the second enlarging section（D）, third
Compression unit（E）, third enlarging section（F）.
7. dual channel PVC foam plate extrusion die according to claim 1, it is characterised in that：The regulating tank（26）'s
Section takes the shape of the letter U.
8. dual channel PVC foam plate extrusion die according to claim 7, it is characterised in that：The regulating part（27）For
With the regulating tank（26）The adjusting screw of threaded connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820166547.2U CN207772377U (en) | 2018-01-31 | 2018-01-31 | Dual channel PVC foam plate extrusion die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820166547.2U CN207772377U (en) | 2018-01-31 | 2018-01-31 | Dual channel PVC foam plate extrusion die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207772377U true CN207772377U (en) | 2018-08-28 |
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ID=63211940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820166547.2U Active CN207772377U (en) | 2018-01-31 | 2018-01-31 | Dual channel PVC foam plate extrusion die |
Country Status (1)
| Country | Link |
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| CN (1) | CN207772377U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112873800A (en) * | 2020-12-25 | 2021-06-01 | 重庆瑞霆塑胶有限公司 | Film extrusion casting equipment |
| CN113829603A (en) * | 2021-09-29 | 2021-12-24 | 宜兴留森模具制造有限公司 | Double-flow-channel PVC (polyvinyl chloride) foaming plate die without splicing seams |
-
2018
- 2018-01-31 CN CN201820166547.2U patent/CN207772377U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112873800A (en) * | 2020-12-25 | 2021-06-01 | 重庆瑞霆塑胶有限公司 | Film extrusion casting equipment |
| CN113829603A (en) * | 2021-09-29 | 2021-12-24 | 宜兴留森模具制造有限公司 | Double-flow-channel PVC (polyvinyl chloride) foaming plate die without splicing seams |
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