CN207772376U - PET hollow grid plate extrusion dies - Google Patents
PET hollow grid plate extrusion dies Download PDFInfo
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- CN207772376U CN207772376U CN201820165175.1U CN201820165175U CN207772376U CN 207772376 U CN207772376 U CN 207772376U CN 201820165175 U CN201820165175 U CN 201820165175U CN 207772376 U CN207772376 U CN 207772376U
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Abstract
The utility model discloses a kind of PET hollow grid plates extrusion die, belongs to extrusion moulding technical field, the technical issues of solving to be not easy to draw before shaping after the sheet extrusion that the extrusion die of the prior art has；The PET hollow grid plate extrusion dies include the die body of upper, middle and lower three set gradually, and the first and second runner for having between these three die bodys and into and out of material mouth, wherein, presetting device is fixedly installed in upper and lower die body front end, this presetting device has vacuum unit and cooling unit；The utility model will be in liquid highly viscous PET raw materials by vacuumize and cooling and shaping by the way that this presetting device is arranged, the sheet material for forming solid-state, having some strength so that the plank come out from extrusion die is easy to draw；In addition, the die lip configurations of the utility model are smaller, it is readily disassembled, mold core can be changed and be cleared up after need to only disassembling die lip, operation is more convenient.
Description
Technical field
The utility model is related to extrusion moulding technical field, more particularly to a kind of PET hollow grid plates extrusion die.
Background technology
The extruding production line of existing production hollow grid plate, squeezes out hollow grid plate, by vacuum by extrusion die
Sizing forms product.With reference to the accompanying drawings 1 and attached drawing 2 shown in, existing extrusion die be disposed with upper die body 11, middle die body 12,
Lower mold body 13, a pair of of die lip 14, mold core 15, heating rod 16 and terminal box 17, upper and lower die body and this pass through between die lip 14
Trip bolt 141 is fixed, and mold core 15 is arranged in middle die body 12, the structural volume mistake during assembly and disassembly due to this to die lip
Greatly, it needs that after dismantling entire die lip mold core 15 could be replaced, while die lip trip bolt 141 is from extrusion die feed end
One side direction penetrates upper and lower die body and is connect again with each die lip, and extrusion die feed end is positioned at the opposite side of each die lip
It is provided with terminal box, needs while dismantle terminal box and heating rod when dismantling each die lip；It, can only be by adjusting when discharging uneven
Each area's temperature of extrusion die and die lip micromatic setting control, and the amplitude of accommodation is fairly limited；Further, since PET raw materials are in high temperature
Molten condition is in a liquid state as water, can not be pulled into stock mould, although stock mould itself carries cooling and vacuum extractor,
But due to stock mould and its secured adjusted device inner space very little after stock mould is close to die lip, traction difficulty is higher, and
And since the PET material viscosities under high temperature fused state are higher, it is easily sticked to die lip surface after raw material depanning, also increases and leads
The difficulty drawn.
Utility model content
In order to solve the above-mentioned technical problem, the purpose of this utility model is to provide after one kind enabling to sheet extrusion and shapes
Before be easy to traction PET hollow grid plate extrusion dies.
In order to realize the purpose of above-mentioned utility model, the utility model adopts the following technical solution：
A kind of PET hollow grid plates extrusion die, including the upper die body, middle die body and the lower mold body that set gradually, in described
Die body has first flow between upper, the middle die body, has in described, between lower mold body between the upper and lower die body
Second flow channel has between the upper and lower die body and is respectively connected with logical feed inlet, the upper and lower mould with first and second runner
Have between body and intersect the discharge port being compiled at one with first and second runner, in described between the upper and lower die body
The front end of die body is provided with mold core, and the front end of the upper and lower die body is movably set with respectively for adjusting the discharge port
The die lip of oral area size, presetting device is fixedly installed on each die lip, and each presetting device includes having to take out
The pre-setting ontology of vacuum unit and cooling unit, the vacuum unit include being arranged on the pre-setting ontology at least
One air admission hole and at least one venthole are located at the pre-setting body interior and distinguish phase with the air admission hole and venthole
Logical bleed-off passage, the cooling unit include at least one inlet opening being arranged on the pre-setting ontology and at least one
Apopore, positioned at the pre-setting body interior and the cooling water flow conduits that are communicated respectively with the inlet opening and apopore.
In above-mentioned technical proposal, it is preferred that the front end of the upper and lower die body is respectively provided with the first groove, the die lip
It is slidably arranged in first groove, there is die lip regulating device between the front end and the die lip of the upper and lower die body,
The die lip regulating device includes being rotatably arranged on the first adjusting bolt of the upper and lower die body front end respectively, and described first
Adjusting bolt is threadedly coupled with the die lip.
In above-mentioned technical proposal, it is preferred that first groove is being closed on second in the upper and lower die body front end
Groove, the interior sliding of second groove are provided with the choked flow stick for adjusting the first and second runner width, the upper and lower mould
There is choked flow stick regulating device between the front end of body and the choked flow stick.
In above-mentioned technical proposal, it is preferred that the choked flow stick regulating device includes being rotatably arranged on the upper and lower mould respectively
Second adjusting bolt of body front end, second adjusting bolt are threadedly coupled with the choked flow stick.
In above-mentioned technical proposal, it is preferred that the bottom of the pre-setting ontology offers multiple pumping slots, it is multiple it is described into
Stomata is opened in the trench bottom of the multiple pumping slot.
In above-mentioned technical proposal, it is preferred that the multiple pumping slot, the multiple air admission hole and the multiple venthole
Uniform intervals are arranged on the pre-setting ontology respectively, and multiple ventholes are connected with a vacuum pump.
In above-mentioned technical proposal, it is preferred that uniform intervals are arranged in respectively for multiple inlet openings, multiple apopores
On the pre-setting ontology, multiple inlet openings are connected with a water pump.
In above-mentioned technical proposal, it is preferred that the pre-setting ontology is coated with not positioned at one side end face of the air admission hole
Adhesive coating layer.
In above-mentioned technical proposal, it is preferred that the non-sticking lining is teflon material.
In above-mentioned technical proposal, it is preferred that the pre-setting ontology has a heat dam, is filled with and protects in the heat dam
Adiabator.
The utility model obtains following advantageous effect compared with prior art：The utility model is filled by the way that pre-setting is arranged
It sets, will be vacuumized in liquid highly viscous PET raw materials process and cooling and shaping, the sheet material for forming solid-state, having some strength make
The plank come out from extrusion die is obtained to be easy to draw；In addition, the die lip configurations of the utility model are smaller, be readily disassembled, only need by
Mold core can be changed and cleared up by die lip after disassembling, and operation is more convenient.
Description of the drawings
Attached drawing 1 is the extrusion die cross-sectional view of the prior art；
Attached drawing 2 is the die lip trip bolt and heating rod structural schematic diagram of the extrusion die of the prior art；
Attached drawing 3 is the utility model PET hollow grid plate extrusion die cross-sectional views；
Attached drawing 4 is the presetting device stereoscopic schematic diagram of the utility model PET hollow grid plate extrusion dies；
Attached drawing 5 is the presetting device schematic side view of the utility model PET hollow grid plate extrusion dies；
Attached drawing 6 is the A-A diagrammatic cross-sections of attached drawing 5；
Attached drawing 7 is the B-B diagrammatic cross-sections of attached drawing 5；
Wherein：11, upper die body；12, middle die body；13, lower mold body；14, die lip；141, die lip fixing screws；15, mold core；
16, heating rod；17, terminal box；100, PET hollow grid plates extrusion die；10, first flow；20, second flow channel；21, upper mold
Body；22, middle die body；23, lower mold body；24, mold core；25, die lip；26, die lip regulating device；261, the first adjusting bolt；27, it hinders
Flow stick；28, choked flow stick regulating device；281, the second adjusting bolt；31, feed inlet；32, discharge port；4, presetting device；41、
Pre-setting ontology；411, it is evacuated slot；412, non-sticking lining；413, heat dam；42, vacuum unit；421, air admission hole；422, go out
Stomata；423, bleed-off passage；43, cooling unit；431, inlet opening；432, apopore；433, cooling water flow conduits；53, spiral shell is fastened
Nail；7, heating device.
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 PET shown in attached drawing 3
The overlying relation of hollow grid plate extrusion die is corresponding, front and back position relationship and the hollow grid of PET shown in attached drawing 3
The left and right position relationship of plate extrusion die is corresponding；In the present embodiment, " PET " refers to polyethylene terephthalate,（English
Text：Polyethylene terephthalate, abbreviation PET）, polyethylene terephthalate is most main in thermoplastic polyester
The kind wanted, is commonly called as polyester resin；" Teflon " refers to polytetrafluoroethylene (PTFE)（Poly-tetra-fluoroethylene is abbreviated as
PTFE）, commonly referred to as " non-sticking lining " or " material easy to clean ", this material has antiacid alkali resistant, resists various organic solvents
Feature is practically insoluble in all solvents, is ideal coating.
With reference to the accompanying drawings 1 and attached drawing 2 shown in, existing extrusion die is disposed with upper die body 11, middle die body 12, lower mold body
13, a pair of of die lip 14, mold core 15, heating rod 16 and terminal box 17, upper and lower die body and this is solid by die lip between die lip 14
Determine the fixation of screw 141, mold core 15 is arranged in middle die body 12, the structural volume mistake during assembly and disassembly due to this to die lip
Greatly, it needs that after dismantling entire die lip mold core 15 could be replaced, while die lip fixing screws 141 are from extrusion die feed end
One side direction penetrates upper and lower die body and is connect again with each die lip, and extrusion die feed end is positioned at the opposite side of each die lip
It is provided with terminal box, needs while dismantle terminal box and heating rod when dismantling each die lip；It, can only be by adjusting when discharging uneven
Each area's temperature of extrusion die and die lip micromatic setting control, and the amplitude of accommodation is fairly limited；Further, since PET raw materials are in high temperature
Molten condition is in a liquid state as water, can not be pulled into stock mould, although stock mould itself carries cooling and vacuum extractor,
But due to stock mould and its secured adjusted device inner space very little after stock mould is close to die lip, traction difficulty is higher, and
And since the PET material viscosities under high temperature fused state are higher, it is easily sticked to die lip surface after raw material depanning, also increases and leads
The difficulty drawn.
With reference to the accompanying drawings shown in 3, the hollow grid plate extrusion die 100 of the utility model includes the upper die body set gradually
21, middle die body 22 and lower mold body 23.Wherein, middle die body 22 has first-class between upper and lower die body between upper, middle die body
Road 10, in, there is second flow channel 20 between lower mold body, have between upper and lower die body with the first and second runner be respectively connected with it is logical into
Material mouth 31 is being equipped with mold core 24 between upper and lower die body, wherein the front end of middle die body 22 positioned at the front end of middle die body 22
With mounting groove, mold core 24 is inlaid in mounting groove.In order to enable the first and second runner can faster, evenly reach production
Required temperature is both provided with heating device 7, in this implementation to solve the problems, such as that discharging is uneven in the die body of upper, middle and lower three
In example, which is the electrically heated rod in each die body.Have and the first and second runner phase between upper and lower die body
The front end of the discharge port 32 being intersected at one, upper and lower die body is being separately provided for adjusting discharging at discharge port 32
The die lip 25 of 32 oral area sizes of mouth, the front end of upper and lower die body are respectively provided with the first groove, and it is recessed that die lip 25 is slidably arranged in first
In slot, it includes difference to have die lip regulating device 26, this die lip regulating device 26 between the front end and die lip 25 of upper and lower die body
It is rotatably arranged on the first adjusting bolt 261 of upper and lower die body front end, the first adjusting bolt 261 is threadedly coupled with die lip 25.This
Sample one can expand discharge port outward along the front end of upper and lower die body respectively by the first adjusting bolt 261 to adjust die lip 25
32 or discharge ports 32 are inwardly reduced, to adapt to the plastic products of production different size, for example, size is different, thickness difference etc..
When installation, it is provided with trip bolt 53 between the front end and die lip of upper and lower die body, this is in order to which die lip 25 to be separately fixed at
On the front end of upper and lower die body, in addition, die lip 25 is fixedly mounted on by this trip bolt 53 in the first groove, inciting somebody to action in this way
When die lip 25 is disassembled from upper and lower die body, there is no need to dismantle heating rod and terminal box, such structure makes die lip 25
Dismounting it is more convenient, in addition, when replacing and clearing up mold core 24, it is only necessary to by die lip 25 from the front end of upper and lower die body
Portion disassembles respectively, and such structure makes the replacement of mold core 24 and cleaning more convenient.For the ease of adjust first,
Mass flow in two runners so that material can speed uniformly squeeze out, improve the surface quality of product, upper and lower die body
The first groove is being closed on the second groove in front end, and the interior sliding of the second groove is provided with wide for adjusting the first and second runner
Narrow choked flow stick 27 has choked flow stick regulating device 28 between the front end and choked flow stick 27 of upper and lower die body.The choked flow stick is adjusted
Device 28 includes the second adjusting bolt 281 for being rotatably arranged on upper and lower die body front end respectively, the second adjusting bolt 281 and resistance
Stick 27 is flowed to be threadedly coupled.So, choked flow stick 27 can be adjusted respectively along upper and lower die body by the second adjusting bolt 281
Front end screws out outward or inside precession, so that the first and second runner broadens or narrows.In addition, choked flow stick 27 is located next to mould
Lip 25 is installed, and installation and removal are all more convenient.
In addition, presetting device 4 is fixedly installed on each die lip 25, it is each predetermined in conjunction with shown in attached drawing 4 and attached drawing 5
Type device 4 includes the pre-setting ontology 41 for having vacuum unit 42 and cooling unit 43, due to the temperature at discharge port 32 compared with
Height, pre-setting ontology 41 have a heat dam 413, this heat dam 413 be located at at the faying face of die lip 25, in heat dam 413
Filled with thermal insulation material, transmission of the heat of extrusion die to presetting device 4 is thus prevented and reduced, is ensureing to cool down
Reduce the thermal loss of extrusion die while effect again.In addition, in order to prevent highly viscous PET raw materials may occur it is viscous
Mould phenomenon（Mold sticking herein refers to that the PET raw materials under the condition of high temperature are in molten condition, under the conditions of no cooling treatment easily
With die lip adhesion, increase traction difficulty）, one is coated between contact surface of the bottom of pre-setting ontology 41 in PET raw materials
Layer non-sticking lining 412, in the present embodiment, the non-sticking lining 412 are mainly teflon material.
With reference to the accompanying drawings shown in 6, cooling unit 43 includes multiple inlet openings 431 for being arranged on pre-setting ontology 41 and multiple
Apopore 432, positioned at cooling water flow conduits pre-setting ontology 41 inside and communicated respectively with inlet opening 431 and apopore 432
433.Uniform intervals are arranged on pre-setting ontology 41 respectively for multiple inlet openings 431, multiple apopores 432, multiple inlet openings 431
It is connected with a water pump.Heat is taken away by flowing water in cooling water flow conduits 433, to achieve the purpose that cooling PET raw materials.
With reference to the accompanying drawings shown in 7, vacuum unit 42 includes multiple air admission holes 421 for being arranged on pre-setting ontology 41 and more
A venthole 422, positioned at bleed-off passage pre-setting ontology 41 inside and communicated respectively with air admission hole 421 and venthole 422
423,.The bottom of pre-setting ontology 41 offers multiple pumping slots 411, and multiple air admission holes 421 are opened in multiple pumping slots 411
Trench bottom.Uniform intervals are arranged in pre-setting sheet respectively for multiple pumping slots 411, multiple air admission holes 421 and multiple ventholes 422
On body 41, multiple ventholes 422 are connected with a vacuum pump.The gas in vacuum tank is taken away by vacuum pump, it will using negative pressure
The raw material after cooling of extrusion die outflow is close to pre-setting ontology 41, to achieve the purpose that cooling and shaping.
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 (10)
1. a kind of PET hollow grid plates 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, have the between upper, the middle die body
One runner（10）, in described, there is second flow channel between lower mold body（20）, have between the upper and lower die body with described first,
Two runners are respectively connected with logical feed inlet（31）, have to intersect with first and second runner between the upper and lower die body and be compiled in one
The discharge port at place（32）, positioned at the middle die body between the upper and lower die body（22）Front end be provided with mold core（24）, institute
The front end for stating upper and lower die body is movably set with respectively for adjusting the discharge port（32）The die lip of oral area size（25）, respectively
The die lip（25）On be fixedly installed presetting device（4）, each presetting device（4）Including with vacuum unit
（42）And cooling unit（43）Pre-setting ontology（41）, the vacuum unit（42）Including being arranged in the pre-setting ontology
（41）On at least one air admission hole（421）With at least one venthole（422）, be located at the pre-setting ontology（41）It is internal and
With the air admission hole（421）And venthole（422）The bleed-off passage communicated respectively（423）, the cooling unit（43）Including setting
It sets in the pre-setting ontology（41）On at least one inlet opening（431）With at least one apopore（432）, be located at it is described pre-
Sizing ontology（41）It is internal and with the inlet opening（431）And apopore（432）The cooling water flow conduits communicated respectively（433）.
2. PET hollow grid plates extrusion die according to claim 1, it is characterised in that：The front end of the upper and lower die body
Portion is respectively provided with the first groove, the die lip（25）It is slidably arranged in first groove, the front end of the upper and lower die body
There is die lip regulating device between the die lip（26）, the die lip regulating device（26）It is described including being rotatably arranged on respectively
First adjusting bolt of upper and lower die body front end（261）, first adjusting bolt（261）With the die lip（25）Screw thread connects
It connects.
3. PET hollow grid plates extrusion die according to claim 2, it is characterised in that：The upper and lower die body front end
There is the second groove closing on first groove, slide and be provided with for adjusting described first and second in second groove
The choked flow stick of runner width（27）, the front end of the upper and lower die body and the choked flow stick（27）Between have choked flow stick adjust
Device（28）.
4. PET hollow grid plates extrusion die according to claim 3, it is characterised in that：The choked flow stick regulating device
（28）The second adjusting bolt including being rotatably arranged on the upper and lower die body front end respectively（281）, second adjusting bolt
（281）With the choked flow stick（27）It is threadedly coupled.
5. PET hollow grid plates extrusion die according to claim 1, it is characterised in that：The pre-setting ontology（41）
Bottom offer multiple pumping slots（411）, multiple air admission holes（421）It is opened in the multiple pumping slot（411）Slot
Bottom.
6. PET hollow grid plates extrusion die according to claim 5, it is characterised in that：The multiple pumping slot
（411）, the multiple air admission hole（421）And the multiple venthole（422）Uniform intervals are arranged in the pre-setting respectively
Ontology（41）On, multiple ventholes（422）It is connected with a vacuum pump.
7. PET hollow grid plates extrusion die according to claim 1, it is characterised in that：Multiple inlet openings
（431）, multiple apopores（432）Uniform intervals are arranged in the pre-setting ontology respectively（41）On, multiple water inlets
Hole（431）It is connected with a water pump.
8. PET hollow grid plates extrusion die according to claim 1, it is characterised in that：The pre-setting ontology（41）
Positioned at the air admission hole（421）One side end face is coated with non-sticking lining（412）.
9. PET hollow grid plates extrusion die according to claim 8, it is characterised in that：The non-sticking lining（412）For
Teflon material.
10. PET hollow grid plates extrusion die according to claim 1, it is characterised in that：The pre-setting ontology（41）
With a heat dam（413）, the heat dam（413）It is interior to be filled with thermal insulation material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820165175.1U CN207772376U (en) | 2018-01-31 | 2018-01-31 | PET hollow grid plate extrusion dies |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820165175.1U CN207772376U (en) | 2018-01-31 | 2018-01-31 | PET hollow grid plate extrusion dies |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207772376U true CN207772376U (en) | 2018-08-28 |
Family
ID=63212081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820165175.1U Active CN207772376U (en) | 2018-01-31 | 2018-01-31 | PET hollow grid plate extrusion dies |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207772376U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108327218A (en) * | 2018-01-31 | 2018-07-27 | 苏州杰威尔精密机械有限公司 | PET hollow grid plate extrusion dies |
| CN111086184A (en) * | 2019-12-20 | 2020-05-01 | 江门市辉隆塑料机械有限公司 | Process and equipment for extruding and coating low-melt-strength plastic |
-
2018
- 2018-01-31 CN CN201820165175.1U patent/CN207772376U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108327218A (en) * | 2018-01-31 | 2018-07-27 | 苏州杰威尔精密机械有限公司 | PET hollow grid plate extrusion dies |
| CN111086184A (en) * | 2019-12-20 | 2020-05-01 | 江门市辉隆塑料机械有限公司 | Process and equipment for extruding and coating low-melt-strength plastic |
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