CN109910266B - Forming die of EPS sheet production system - Google Patents
Forming die of EPS sheet production system Download PDFInfo
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- CN109910266B CN109910266B CN201910262893.XA CN201910262893A CN109910266B CN 109910266 B CN109910266 B CN 109910266B CN 201910262893 A CN201910262893 A CN 201910262893A CN 109910266 B CN109910266 B CN 109910266B
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- eps
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 36
- 238000007664 blowing Methods 0.000 claims abstract description 13
- 238000000465 moulding Methods 0.000 claims abstract description 10
- 230000007246 mechanism Effects 0.000 claims abstract description 9
- 238000001816 cooling Methods 0.000 claims abstract description 4
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 15
- 238000010586 diagram Methods 0.000 description 5
- 238000007789 sealing Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000009966 trimming Methods 0.000 description 2
- 239000002912 waste gas Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009323 psychological health Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention provides a forming die of an EPS sheet production system, which comprises a core sleeve fixedly connected with an extruder of the EPS sheet production system, wherein a cavity extending from front to back is arranged in the core sleeve, and the front end of the cavity is communicated with an outlet of the extruder; a mold core is arranged in the cavity, and a flow passage with an annular cross section, which gradually becomes smaller from front to back, is enclosed between the wall surface of the cavity and the mold core; the rear side of the core sleeve is provided with a rear plug, a conical gap is arranged between the front end of the rear plug and the rear end of the core sleeve, and the gap is communicated with the flow channel; and a blowing mechanism for cooling the EPS sheets. The molding die can extrude the EPS material output from the extruder in a sheet form to form an EPS sheet.
Description
Technical Field
The invention relates to the technical field of EPS sheet production, in particular to a forming die of an EPS sheet production system.
Background
When the general KT board production system is used for producing the KT board, PS particles are firstly foamed through an extruder and then extruded into a forming die to prepare a board core, then films (or stickers) are stuck on two sides of the board core, and then the KT board finished product is obtained after fixed-width trimming and fixed-length trimming. The process of foaming and forming the plate core by using PS particles can generate a large amount of waste gas, the waste gas can cause bad working environment after being emitted to a production workshop, and the physical and psychological health of workers is influenced. Therefore, there is a need for a production system capable of producing EPS sheets to provide EPS sheets, in which there is a need for a molding die provided at the outlet of an extruder to extrude EPS material in a sheet form to form EPS sheets.
Disclosure of Invention
In view of the above-described drawbacks of the related art, an object of the present invention is to provide a molding die of an EPS sheet production system capable of extruding an EPS material fed out in an extruder in a sheet form to form an EPS sheet.
In order to achieve the above purpose, the invention adopts the following technical scheme:
A forming die of an EPS sheet production system comprises a core sleeve fixedly connected with an extruder of the EPS sheet production system, wherein a cavity extending from front to back is arranged in the core sleeve, and the front end of the cavity is communicated with an outlet of the extruder; a mold core is arranged in the cavity, and a flow passage with an annular cross section, which gradually becomes smaller from front to back, is enclosed between the wall surface of the cavity and the mold core; the rear side of the core sleeve is provided with a rear plug, a conical gap is arranged between the front end of the rear plug and the rear end of the core sleeve, and the gap is communicated with the flow channel; and a blowing mechanism for cooling the EPS sheets.
In the forming die of the EPS sheet production system, the blowing mechanism comprises a wind ring sleeved at the rear end of the core sleeve and a blower for blowing air to the wind ring; the periphery of the air ring is uniformly provided with a plurality of air inlets along the circumferential direction, the rear side surface of the air ring is provided with an annular air outlet, and the air blower supplies air to all the air inlets simultaneously through the air conveying pipe.
In the forming die of the EPS sheet production system, the cross section of the cavity is circular; the die core comprises a circular mounting part, a first cylindrical part, a truncated cone part and a second cylindrical part, wherein the circular mounting part is used for being connected and fixed with the core sleeve, the truncated cone part is gradually reduced from front to back; the mounting part is provided with a plurality of through holes communicated with the front surface and the rear surface, and the rear plug is arranged at the rear end of the second cylindrical part.
In the forming die of the EPS sheet production system, the width of the gap is adjustable.
In the forming die of the EPS sheet production system, the rear end of the second cylindrical part is provided with external threads, the center of the rear plug is provided with a mounting hole which is matched with the second cylindrical part, the front part of the mounting hole is a unthreaded hole, and the rear part of the mounting hole is provided with internal threads; the rear plug is in threaded connection with the rear end of the second cylindrical part through the internal thread and is locked through a locking screw.
In the forming die of the EPS sheet production system, the die core further comprises a conical flow guide part arranged at the front end of the mounting part.
In the forming die of the EPS sheet production system, the core sleeve comprises a front sleeve body fixedly connected with the extruder, a middle sleeve body connected to the rear end of the front sleeve body, and a rear sleeve body connected to the rear end of the middle sleeve body; the front sleeve body, the middle sleeve body and the rear sleeve body are provided with subcavities which form the cavity; the rear end face of the front sleeve body and the front end face of the middle sleeve body are provided with mounting grooves, and the mounting parts of the mold cores are clamped through the mounting grooves.
In the forming die of the EPS sheet production system, an annular clamping groove is formed in the peripheral surface of the rear sleeve body, and the rear sleeve body is fixed at the rear end of the middle sleeve body through two semicircular clamping rings; one end of the semicircular clamping ring is clamped with the annular clamping groove, and the other end of the semicircular clamping ring is connected with the middle sleeve body through a screw.
In the forming die of the EPS sheet production system, a sealing ring is arranged between the rear sleeve body and the middle sleeve body.
The beneficial effects are that:
The invention provides a forming die of an EPS sheet production system, which is characterized in that during operation, EPS materials are extruded into a cavity of a core sleeve from an extruder and move from front to back, and are extruded in a conical shape from a conical gap after passing through a flow passage between the wall surface of the cavity and a mold core, and the extruded materials are cooled by wind blown out by a blowing mechanism to form an EPS sheet. It can be seen that the forming die enables the EPS material output in the extruder to be extruded in sheet form to form an EPS sheet.
Drawings
Fig. 1 is a schematic structural diagram of a molding die of the EPS sheet production system provided by the invention.
Fig. 2 is a schematic structural diagram of a mold core in a molding mold of the EPS sheet production system provided by the invention.
Fig. 3 is a schematic structural diagram of a rear plug in a forming mold of the EPS sheet production system provided by the invention.
Fig. 4 is a schematic structural view of a rear sleeve and a semicircular clasp in a forming die of the EPS sheet production system provided by the invention.
Fig. 5 is a schematic structural diagram of a front sleeve body and a middle sleeve body in a forming mold of the EPS sheet production system provided by the invention.
Fig. 6 is a schematic structural diagram of an air ring in a forming mold of the EPS sheet production system provided by the invention.
Detailed Description
The invention provides a forming die of an EPS sheet production system, which is used for making the purposes, technical schemes and effects of the invention clearer and more definite, and further detailed description of the invention is provided below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Herein, rear refers to the direction along which the material moves, i.e., the right side in fig. 1, front and rear are reversed.
Referring to fig. 1-6, the molding die of the EPS sheet production system provided by the invention comprises a core sleeve 1 fixedly connected with an extruder of the EPS sheet production system, wherein a cavity 1.1 extending from front to back is arranged in the core sleeve, and the front end of the cavity is communicated with an outlet of the extruder; a mold core 2 is arranged in the cavity, and a flow passage 1.1a with an annular cross section, which gradually becomes smaller from front to back, is formed between the wall surface of the cavity and the mold core; the rear side of the core sleeve is provided with a rear plug 3, a conical gap 4 is arranged between the front end of the rear plug and the rear end of the core sleeve, and the gap is communicated with the flow channel 1.1a; a blowing mechanism 5 for cooling the EPS sheet 90 is also included.
During operation, EPS material is extruded from the extruder into the cavity of the core sleeve and moves from front to back (according to the broken line arrow in fig. 1), and is extruded in a conical shape in a conical gap after passing through a flow channel between the wall surface of the cavity and the mold core, the extruded material is cooled by wind blown by the blowing mechanism to form an EPS sheet, the EPS sheet is guided by the guide cylinder 91 at the rear and further cooled to form a cylindrical EPS sheet, and finally the EPS sheet is cut along the length direction by a cutter and flattened to be wound. It can be seen that the forming die enables the EPS material output in the extruder to be extruded in sheet form to form an EPS sheet.
Further, the air blowing mechanism 5 comprises an air ring 5.1 sleeved at the rear end of the core sleeve 1 and an air blower 5.2 for blowing air to the air ring; the circumference of the air ring is uniformly provided with a plurality of air inlets 5.1a along the circumferential direction, the rear side surface of the air ring is provided with an annular air outlet 5.1b, and the air blower supplies air to all the air inlets simultaneously through the air delivery pipe. Wind enters the wind ring from each wind inlet along the radial direction and then finally is sprayed out backward from the wind outlet (the wind moves along the solid arrows in fig. 1), and the sprayed wind is uniform in the circumferential direction, so that the sheet is uniformly cooled.
Referring to fig. 1, the front part of the wall surface of the sleeve hole of the wind ring 5.1 for being sleeved with the core sleeve 1 is a truncated cone surface, the rear end of the truncated cone surface is smaller than the front end, and the truncated cone surface has a diversion effect, so that radial wind can be more smoothly converted into backward blowing wind, and the uniformity of the wind is improved.
Specifically, as shown in fig. 1 and 2, the cross section of the cavity 1.1 is circular; the mold core 2 comprises a circular mounting part 2.1, a first cylindrical part 2.2, a truncated cone part 2.3 and a second cylindrical part 2.4 which are gradually reduced from front to back, wherein the circular mounting part is used for being connected and fixed with the core sleeve 1; the mounting part is provided with a plurality of through holes 2.2a communicated with the front surface and the rear surface, and the rear plug 3 is arranged at the rear end of the second cylindrical part. The mould core is fixed in the cavity through the mounting part, and EPS material passes through the mounting part from the via hole 2.2a, so that the mounting part does not influence the EPS material to move in the cavity.
Preferably, the width of the gap 4 (i.e., the distance between the front end surface of the rear plug and the rear end surface of the core sleeve) is adjustable. By adjusting the width, the thickness of the EPS sheet can be adjusted, so that EPS sheets of different thicknesses can be produced by the same molding die.
Specifically, as shown in fig. 1 and 3, an external thread 2.4a is arranged at the rear end of the second cylindrical part 2.4, a mounting hole 3.1 adapted to the second cylindrical part is arranged at the center of the rear plug 3, the front part of the mounting hole is a unthreaded hole, and an internal thread is arranged at the rear part of the mounting hole; the rear plug is in threaded connection with the rear end of the second cylindrical part through the internal thread and is locked through a locking screw 3.2. Here, a threaded bore 3.3 is radially provided in the rear plug, in which the locking screw 3.2 is arranged. When the width of the gap 4 needs to be adjusted, the locking screw is unscrewed, then the front and rear positions of the rear plug are adjusted by rotating the rear plug, and finally the locking screw is re-screwed.
Further, the mold core 2 further comprises a conical flow guiding part 2.5 arranged at the front end of the mounting part 2.1, so that the moving resistance of the EPS material in the cavity can be reduced, and smooth movement of the EPS material is ensured.
Referring to fig. 1, the core sleeve 1 comprises a front sleeve body 1.2 fixedly connected with an extruder, a middle sleeve body 1.3 connected to the rear end of the front sleeve body, and a rear sleeve body 1.4 connected to the rear end of the middle sleeve body; the front sleeve body, the middle sleeve body and the rear sleeve body are provided with sub-cavities, and the sub-cavities form the cavity 1.1; the rear end face of the front sleeve body and the front end face of the middle sleeve body are provided with mounting grooves 1.5 and are used for clamping the mounting part 2.1 of the mold core 2.
The subchamber of the front sleeve body 1.2 is cylindrical, and the front end of the front sleeve body is provided with a flange part which is fixedly connected with the extruder through a screw; the front part of the subchamber of the middle sleeve body 1.3 is cylindrical, the rear part is in a truncated cone shape with a big front part and a small rear part, the first cylindrical part 2.2 and the truncated cone part 2.3 of the mold core 2 are arranged in the subchamber, so that a gradually-reduced flow passage is formed, and the middle sleeve body is fixedly connected with the front sleeve body 1.2 through a screw; the sub-cavity of the rear sleeve body 1.4 is cylindrical, the diameter of the sub-cavity is not larger than that of the rear end of the sub-cavity of the middle sleeve body 1.3, and the second cylindrical part 2.4 of the mold core 2 is arranged in the sub-cavity of the rear sleeve body 1.4 in a penetrating manner.
Further, an annular clamping groove 1.4a is formed in the peripheral surface of the rear sleeve body 1.4, and the rear sleeve body is fixed at the rear end of the middle sleeve body 1.3 through two semicircular clamping rings 1.6; one end of the semicircular clamping ring is clamped with the annular clamping groove, and the other end of the semicircular clamping ring is connected with the middle sleeve body through a screw. Here, the rear end of the semicircular snap ring 1.6 is provided with a protrusion 1.6a adapted to the annular clamping groove 1.4a, the protrusion 1.6a being clamped in the annular clamping groove. The semicircular clamping ring can be assembled and disassembled, and the rear sleeve bodies with different inner diameters can be replaced to change the size of the flow passage, so that the production requirements of EPS sheets with different thicknesses are met.
In addition, be provided with sealing washer 1.7 between the cover body 1.4 and the well cover body 1.3 behind, as shown in fig. 1, can play sealed effect on the one hand, avoid EPS material to flow out from the clearance between the cover body behind and the well cover body, on the other hand, because the sealing washer has elasticity, after semi-circular snap ring installs, the back cover body can compress tightly the sealing washer to eliminate the gap reliably, avoid the back cover body to take place to rock.
It will be understood that equivalents and modifications will occur to those skilled in the art based on the present invention and its spirit, and all such modifications and substitutions are intended to be included within the scope of the present invention.
Claims (4)
1. The forming die of the EPS sheet production system is characterized by comprising a core sleeve fixedly connected with an extruder of the EPS sheet production system, wherein a cavity extending from front to back is arranged in the core sleeve, and the front end of the cavity is communicated with an outlet of the extruder; a mold core is arranged in the cavity, and a flow passage with an annular cross section, which gradually becomes smaller from front to back, is enclosed between the wall surface of the cavity and the mold core; the rear side of the core sleeve is provided with a rear plug, a conical gap is arranged between the front end of the rear plug and the rear end of the core sleeve, and the gap is communicated with the flow channel; the device also comprises a blowing mechanism for cooling the EPS sheets;
The cross section of the cavity is circular; the die core comprises a circular mounting part, a first cylindrical part, a truncated cone part and a second cylindrical part, wherein the circular mounting part is used for being connected and fixed with the core sleeve, the truncated cone part is gradually reduced from front to back; the mounting part is provided with a plurality of through holes communicated with the front surface and the rear surface, and the rear plug is arranged at the rear end of the second cylindrical part;
The width of the gap is adjustable;
The rear end of the second cylindrical part is provided with external threads, the center of the rear plug is provided with a mounting hole which is matched with the second cylindrical part, the front part of the mounting hole is a unthreaded hole, and the rear part of the mounting hole is provided with internal threads; the rear plug is in threaded connection with the rear end of the second cylindrical part through the internal thread and is locked through a locking screw;
The core sleeve comprises a front sleeve body fixedly connected with the extruder, a middle sleeve body connected to the rear end of the front sleeve body, and a rear sleeve body connected to the rear end of the middle sleeve body; the front sleeve body, the middle sleeve body and the rear sleeve body are provided with subcavities which form the cavity; the rear end face of the front sleeve body and the front end face of the middle sleeve body are provided with mounting grooves, and the mounting parts of the mold cores are clamped through the mounting grooves;
The peripheral surface of the rear sleeve body is provided with an annular clamping groove, and the rear sleeve body is fixed at the rear end of the middle sleeve body through two semicircular clamping rings; one end of the semicircular clamping ring is clamped with the annular clamping groove, and the other end of the semicircular clamping ring is connected with the middle sleeve body through a screw.
2. The molding die of the EPS sheet production system according to claim 1, wherein the blowing mechanism includes a blower ring fitted over a rear end of the core sleeve, and a blower for blowing air to the blower ring; the periphery of the air ring is uniformly provided with a plurality of air inlets along the circumferential direction, the rear side surface of the air ring is provided with an annular air outlet, and the air blower supplies air to all the air inlets simultaneously through the air conveying pipe.
3. The molding die of the EPS sheet production system of claim 1, wherein the mold core further comprises a tapered flow guide portion provided at a front end of the mounting portion.
4. The molding die of the EPS sheet production system according to claim 1, wherein a seal ring is provided between the rear sleeve body and the middle sleeve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910262893.XA CN109910266B (en) | 2019-04-02 | 2019-04-02 | Forming die of EPS sheet production system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910262893.XA CN109910266B (en) | 2019-04-02 | 2019-04-02 | Forming die of EPS sheet production system |
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| CN109910266A CN109910266A (en) | 2019-06-21 |
| CN109910266B true CN109910266B (en) | 2024-04-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910262893.XA Active CN109910266B (en) | 2019-04-02 | 2019-04-02 | Forming die of EPS sheet production system |
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1509488A (en) * | 1965-07-16 | 1968-01-12 | Modern Plastic Machinery Corp | Improvements to extrusion dies used for the production of puffed films |
| US5333538A (en) * | 1991-05-02 | 1994-08-02 | Kabushiki Kaisha Kobe Seiko Sho | Food extruder machine |
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| CN102791776A (en) * | 2010-01-12 | 2012-11-21 | 绿岩有限责任公司 | Paper-like film and process for making it |
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| CN204183887U (en) * | 2014-09-30 | 2015-03-04 | 常州膜邦新材料科技有限公司 | A kind of extrusion device of biaxial stretching film base band |
| CN205202082U (en) * | 2015-11-27 | 2016-05-04 | 开封树杰模具有限公司 | Inner chamber coextru -lamination extrusion tooling |
| CN206106317U (en) * | 2016-10-25 | 2017-04-19 | 连云港德翔新材料有限公司 | Extrude calender at a high speed suitable for rubber |
| CN106827447A (en) * | 2017-01-24 | 2017-06-13 | 邓明财 | Extrusion head assembly, part of the die head and mould for plastics |
| CN107283787A (en) * | 2017-05-25 | 2017-10-24 | 金杯电工衡阳电缆有限公司 | A kind of modified cross-head mould |
| CN209869345U (en) * | 2019-04-02 | 2019-12-31 | 佛山市高明爱博广告装饰材料有限公司 | Forming die of EPS sheet production system |
-
2019
- 2019-04-02 CN CN201910262893.XA patent/CN109910266B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1509488A (en) * | 1965-07-16 | 1968-01-12 | Modern Plastic Machinery Corp | Improvements to extrusion dies used for the production of puffed films |
| US5333538A (en) * | 1991-05-02 | 1994-08-02 | Kabushiki Kaisha Kobe Seiko Sho | Food extruder machine |
| US5845929A (en) * | 1994-05-21 | 1998-12-08 | Petri Ag | Covering means for air-bag-collision-safety means as well as process for the production thereof |
| CN102791776A (en) * | 2010-01-12 | 2012-11-21 | 绿岩有限责任公司 | Paper-like film and process for making it |
| CN202965152U (en) * | 2012-12-07 | 2013-06-05 | 仙居县聚源橡塑设备制造有限公司 | Extruding machine head with vacuumizing structure |
| CN204183887U (en) * | 2014-09-30 | 2015-03-04 | 常州膜邦新材料科技有限公司 | A kind of extrusion device of biaxial stretching film base band |
| CN205202082U (en) * | 2015-11-27 | 2016-05-04 | 开封树杰模具有限公司 | Inner chamber coextru -lamination extrusion tooling |
| CN206106317U (en) * | 2016-10-25 | 2017-04-19 | 连云港德翔新材料有限公司 | Extrude calender at a high speed suitable for rubber |
| CN106827447A (en) * | 2017-01-24 | 2017-06-13 | 邓明财 | Extrusion head assembly, part of the die head and mould for plastics |
| CN107283787A (en) * | 2017-05-25 | 2017-10-24 | 金杯电工衡阳电缆有限公司 | A kind of modified cross-head mould |
| CN209869345U (en) * | 2019-04-02 | 2019-12-31 | 佛山市高明爱博广告装饰材料有限公司 | Forming die of EPS sheet production system |
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