CN221417375U - Double-screw extrusion device for EPDM sponge production - Google Patents
Double-screw extrusion device for EPDM sponge production Download PDFInfo
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- CN221417375U CN221417375U CN202323312358.1U CN202323312358U CN221417375U CN 221417375 U CN221417375 U CN 221417375U CN 202323312358 U CN202323312358 U CN 202323312358U CN 221417375 U CN221417375 U CN 221417375U
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- extrusion
- screw
- side wall
- rotating shaft
- feeding
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- 238000001125 extrusion Methods 0.000 title claims abstract description 91
- 229920002943 EPDM rubber Polymers 0.000 title claims abstract description 46
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 14
- 239000002994 raw material Substances 0.000 claims abstract description 27
- 239000000463 material Substances 0.000 claims abstract description 18
- 238000003756 stirring Methods 0.000 claims abstract description 10
- 230000002093 peripheral effect Effects 0.000 claims abstract description 6
- 238000012546 transfer Methods 0.000 claims description 9
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 2
- 230000006978 adaptation Effects 0.000 claims 1
- 230000007246 mechanism Effects 0.000 abstract description 7
- 235000012438 extruded product Nutrition 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 3
- 235000017491 Bambusa tulda Nutrition 0.000 description 3
- 241001330002 Bambuseae Species 0.000 description 3
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 3
- 239000011425 bamboo Substances 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 238000005187 foaming Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Landscapes
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model relates to the technical field of EPDM rubber sponge production, in particular to a double-screw extrusion device for EPDM rubber sponge production, which comprises an extrusion box, a box cover, a material guiding middle rotary drum and a material feeding conical drum, wherein a rotatable first rotating shaft is longitudinally arranged in the material feeding conical drum, a plurality of stirring plates are arranged at equal intervals on the part of the peripheral side wall of the first rotating shaft, which is positioned in the material feeding conical drum, a rotatable second rotating shaft is transversely arranged in the material guiding middle rotary drum, and a plurality of material guiding plates are connected to the part of the peripheral side wall of the second rotating shaft, which is positioned in the material guiding middle rotary drum. According to the utility model, through the longitudinal material guide of the stirring plate and the transverse material guide of the material guide plate, the problem that the feed inlet is blocked due to the fact that the feed inlet of the feed mechanism is smaller in EPDM rubber and sponge raw materials is avoided, so that the phenomenon of idle extrusion in an extrusion device in an extrusion box is avoided, the quality of extruded products is kept uniform, and the overall working efficiency of the extrusion device is improved.
Description
Technical Field
The utility model relates to the technical field of EPDM rubber sponge production, in particular to a double-screw extrusion device for EPDM sponge production.
Background
The EPDM rubber sponge material is widely applied to the fields of automobiles, building houses, aviation, aerospace, military and the like because of excellent performances of buffering, compression, sealing, heat preservation, sound insulation and the like, the main raw materials of the existing EPDM rubber sponge foaming material are EPDM rubber and other raw materials, the EPDM rubber and other raw materials are mixed through proportioning and a series of processing, and are vulcanized and foamed at a high temperature and high pressure by a vulcanizing press to form a sponge, the initial forming is needed to be completed through an extrusion forming process in the early stage of forming and foaming of the EPDM rubber and other raw materials, the coloring and mixing of the sponge can be completed in the process, the double screw extrusion device is the most widely applied, and the EPDM rubber and sponge raw materials enter the double screw extrusion device through a feeding device in the actual extrusion process, are heated and are formed after extrusion.
The existing double-screw extrusion device is generally configured with a feeding mechanism for use, namely, multi-raw-material mixing and multi-raw-material double-screw extrusion are completed in the same set of device, but because the raw materials of the EPDM rubber sponge comprise PDM rubber and sponge raw materials, a certain molding volume is provided before feeding, so that when the EPDM rubber sponge is intensively fed into the feeding mechanism, the problem of blockage of the feeding port is easy to occur due to the fact that the feeding port of the feeding mechanism is smaller, and the phenomenon of idle extrusion occurs in the double-screw extrusion device, the quality of extruded products is difficult to keep uniform finally, and the overall working efficiency of the double-screw extrusion device is reduced.
Therefore, it is necessary to invent a twin screw extruder for EPDM sponge production to solve the above problems.
Disclosure of utility model
In order to solve the defects of the prior art, the utility model aims to provide the double-screw extrusion device for producing the EPDM sponge, which solves the problem that the feeding hole is blocked easily due to the fact that the feeding hole of the feeding mechanism is smaller in the prior art, so that the phenomenon of idle extrusion occurs in the double-screw extrusion device, finally, the quality of extruded products is difficult to be kept uniform, and the problem that the overall working efficiency of the double-screw extrusion device is reduced is solved.
In order to achieve the above object, the present utility model adopts the following technical scheme:
The utility model provides a double screw extrusion device is used in EPDM sponge production, is including the top for open end and can carry out the extrusion case of pay-off extrusion to EPDM rubber sponge raw materials, demountable installation in the case lid of extrusion case top, locate in the left guide of case lid top rotary drum and locate the feed cone section of thick bamboo that the feed transfer drum top just the top is the feed end, vertically be provided with rotatable first pivot in the feed cone section of thick bamboo, the equidistant a plurality of stirring boards that are provided with of part that first pivot week lateral wall is located the feed cone section of thick bamboo, transversely be provided with rotatable second pivot in the guide rotary drum, the part that second pivot week lateral wall is located the feed transfer drum is connected with a plurality of stock guide.
As a preferable scheme of the utility model, the top end of the feeding cone is detachably abutted with a top cover plate, the top cover plate divides the top opening end of the feeding cone into two feeding holes, and the first rotating shaft is rotatably arranged in the center of the top cover plate in a penetrating manner.
As a preferable scheme of the utility model, screw rods are arranged at symmetrical positions of the left side wall of the extrusion box in a rotating way, one end of each screw rod positioned in the extrusion box is in rotating contact with the right side wall of the extrusion box, the two screw rods are opposite in rotation, and a spiral blade capable of feeding and extruding the EPDM rubber sponge from left to right is sleeved on the part of the peripheral side wall of each screw rod positioned in the extrusion box.
As a preferable scheme of the utility model, an extrusion hole is formed in the center of the right side wall of the extrusion box, and an extruder head pipe is detachably arranged at the position of the right side wall of the extrusion box, which is matched with the extrusion hole.
As a preferable scheme of the utility model, the left end of the screw rod is connected with a driving connecting shaft, clamping blocks are arranged at the positions, adapting to each screw rod, of the right side wall of the extrusion box, and the right end of the screw rod is rotationally clamped with the clamping blocks.
As a preferable scheme of the utility model, the center of the top cover plate is detachably embedded with a first bearing, the first rotating shaft is rotatably arranged in the first bearing in a penetrating manner, one side wall of the guide rotating cylinder is detachably embedded with a second bearing, the second rotating shaft is rotatably arranged in the second bearing in a penetrating manner, the symmetrical positions of the left side wall of the extrusion box are detachably embedded with third bearings, and the two screw rods are respectively rotatably arranged in the corresponding third bearings in a penetrating manner.
In the technical scheme, the utility model has the technical effects and advantages that:
According to the utility model, the feeding mechanism is arranged into two sections, namely the feeding cone and the middle guide drum, so that EPDM rubber and sponge raw materials sequentially pass through the feeding cone and the middle guide drum from top to bottom, then enter the extrusion box to finish double-screw extrusion operation, in the feeding process, when the EPDM rubber and sponge raw materials enter the feeding cone, the stirring plate is driven to rotate in the feeding cone through the rotation of the first rotation shaft, on one hand, the feeding rate of the EPDM rubber and sponge raw materials is improved, on the other hand, the problem of bottom blockage caused by continuous reduction of the section size of the feeding cone can be avoided, then the EPDM rubber and sponge raw materials in the middle guide drum are driven by the second rotation shaft, the stirring plate continuously rotates, the overall discharging rate of the EPDM rubber and sponge raw materials is further improved on the premise of avoiding the blockage of the discharging, and finally, the transverse guiding of the EPDM rubber and the sponge raw materials through the longitudinal guiding plate is avoided, the problem that the feeding port of the EPDM rubber and the sponge raw materials are blocked is smaller, and the problem of uniform extrusion efficiency is avoided, and the whole extrusion efficiency is improved, and the whole extrusion device is kept.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic plan elevation view of the present utility model;
FIG. 3 is a schematic plan top view of the present utility model;
FIG. 4 is a schematic view of the cross-sectional structure of the portion A-A of FIG. 2 according to the present utility model;
FIG. 5 is a schematic view showing a cross-sectional structure at B-B in FIG. 3 according to the present utility model.
Reference numerals illustrate:
1. Extruding the box; 2. a case cover; 3. a material guiding middle rotary drum; 4. a feed cone; 5. a top cover plate; 6. a first rotating shaft; 7. a stirring plate; 8. a second rotating shaft; 9. a material guide plate; 10. a screw; 11. a helical blade; 12. a clamping block; 13. driving the connecting shaft; 14. extruding the hole; 15. an extruder head tube; 16. a first bearing; 17. a second bearing; 18. and a third bearing.
Description of the embodiments
The utility model is further described below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present utility model, and are not intended to limit the scope of the present utility model.
The utility model provides a double-screw extrusion device for producing an EPDM sponge, which is shown in figures 1-5, and comprises an extrusion box 1, a box cover 2, a middle guide rotary drum 3 and a feeding conical drum 4, wherein the top end of the extrusion box 1 is open, the extrusion box can be used for feeding and extruding EPDM rubber sponge raw materials, the box cover 2 is detachably arranged at the top end of the extrusion box 1, the middle guide rotary drum 3 is arranged at the left side of the top end of the box cover 2, the feeding conical drum 4 is arranged at the top end of the middle guide rotary drum 3 and is provided with a feeding end, a rotatable first rotating shaft 6 is longitudinally arranged in the feeding conical drum 4, a plurality of stirring plates 7 are uniformly arranged on the part of the peripheral side wall of the first rotating shaft 6, which is positioned in the feeding conical drum 4, a rotatable second rotating shaft 8 is transversely arranged in the middle guide rotary drum 3, a plurality of guide plates 9 are connected to the part of the peripheral side wall of the second rotating shaft 8, and the screw 10 can be driven in a rotating way by separate motors, so that the cooperation work is realized on the premise of meeting the work needs, and the motors are not shown in the figures.
The butt has lamina tecti 5 can be dismantled on feed cone 4 top, and lamina tecti 5 cuts apart into two feed inlets with the top open end of feed cone 4, and first pivot 6 rotates and wears to locate lamina tecti 5 center, and lamina tecti 5 can cut apart into two feed inlets with the top open end of feed cone 4, has both realized the multiposition function of feeding, and on the other hand can avoid single feed inlet to appear the problem of jam easily.
Screw rod 10 is worn to the equal rotation of extrusion case 1 left side wall symmetry position, and screw rod 10 is located the one end of extrusion case 1 and the butt of rotating of extrusion case 1 right side wall, two screw rods 10 turn to in opposite directions, and screw rod 10 week lateral wall is located the partial cover of extrusion case 1 and is equipped with screw blade 11 that can carry out left-hand right pay-off extrusion to the EPDM rubber sponge, the turn to of two screw rods 10 is opposite for the turn to of two screw blade 11 is opposite, thereby makes two screw rods 10 carry out operations such as free right pay-off, heating and extrusion to EPDM rubber and sponge raw and other materials at reverse synchronous pivoted in-process.
An extrusion hole 14 is formed in the center of the right side wall of the extrusion box 1, an extrusion head pipe 15 is detachably mounted at the position, matched with the extrusion hole 14, of the right side wall of the extrusion box 1, EPDM rubber and sponge raw materials which finish extrusion operation are extruded from the extrusion box 1 through the extrusion hole 14, then corresponding further heating treatment is finished through the extrusion head pipe 15, and finally the materials are discharged.
The left end of the screw rod 10 is connected with a driving connecting shaft 13, clamping blocks 12 are arranged at the position of the right side wall of the extrusion box 1, which is matched with each screw rod 10, the right end of the screw rod 10 is rotationally clamped with the clamping blocks 12, the driving connecting shaft 13 can facilitate connection, fixation and maintenance and disassembly between the screw rod 10 and a motor, and the clamping blocks 12 can ensure that the screw rod 10 rotates stably in the extrusion box 1.
The center of the top cover plate 5 is detachably embedded with a first bearing 16, the first rotating shaft 6 rotates to penetrate through the first bearing 16, one side wall of the rotary drum 3 in the material guiding is detachably embedded with a second bearing 17, the second rotating shaft 8 rotates to penetrate through the second bearing 17, symmetrical positions of the left side wall of the extrusion box 1 are detachably embedded with a third bearing 18, the two screws 10 respectively rotate to penetrate through the corresponding third bearings 18, and the first bearing 16, the second bearing 17 and the third bearings 18 can respectively ensure stable rotation of the first rotating shaft 6, the second rotating shaft 8 and the screws 10, so that mechanical abrasion caused by rotation is weakened to the greatest extent.
According to the utility model, the feeding mechanism is arranged into two sections, namely the feeding cone 4 and the guiding transfer cylinder 3, so that EPDM rubber and sponge raw materials sequentially pass through the feeding cone 4 and the guiding transfer cylinder 3 from top to bottom and then enter the extrusion box 1 to finish extrusion operation, in the feeding process, when the EPDM rubber and sponge raw materials enter the feeding cone 4, the stirring plate 7 is driven to rotate in the feeding cone 4 through the rotation of the first rotating shaft 6, on one hand, the blanking rate of the EPDM rubber and sponge raw materials is improved, on the other hand, the problem of bottom blockage caused by continuous reduction of the cross section size of the feeding cone 4 can be avoided, then the EPDM rubber and sponge raw materials enter the guiding transfer cylinder 3, the whole blanking rate of the EPDM rubber and sponge raw materials is further improved on the premise of avoiding blanking blockage by continuously rotating the plurality of the guiding plates 9, and finally, the phenomenon of uniform extrusion quality of the whole extrusion device is avoided by the longitudinal guiding of the stirring plate 7 and the transverse guiding of the guiding plate 9, the EPDM rubber and sponge raw materials is prevented from being blocked by the rotation of the second rotating shaft 8, and the whole extrusion device is prevented from the problem of the extrusion device is avoided, and the phenomenon that the whole extrusion device is prevented from being blocked by the feeding device is extruded, and the whole extrusion device is prevented from the problem is prevented from the phenomenon that the whole extrusion device is extruded device is caused to be relatively low, and has a lower quality.
The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and variations could be made by those skilled in the art without departing from the technical principles of the present utility model, and such modifications and variations should also be regarded as being within the scope of the utility model.
Claims (6)
1. Double screw extrusion device is used in production of EPDM sponge, its characterized in that: including top be open end and can carry out extrusion case (1) that pay-off was extruded to EPDM rubber sponge raw materials, demountable installation in case lid (2) on extrusion case (1) top, locate lid (2) left guide transfer cylinder (3) and locate in the guide feed cone (4) that rotary cylinder (3) top and top are the feed end, vertically be provided with rotatable first pivot (6) in feed cone (4), the part equidistant a plurality of stirring boards (7) that are located feed cone (4) of first pivot (6) week lateral wall, transversely be provided with rotatable second pivot (8) in guide transfer cylinder (3), the part that second pivot (8) week lateral wall is located guide transfer cylinder (3) is connected with a plurality of guide plates (9).
2. The twin-screw extrusion device for EPDM sponge production as claimed in claim 1, wherein: the top end of the feeding cone (4) is detachably connected with a top cover plate (5), the top opening end of the feeding cone (4) is divided into two feeding holes by the top cover plate (5), and the first rotating shaft (6) is rotatably arranged in the center of the top cover plate (5).
3. The twin-screw extrusion device for EPDM sponge production as claimed in claim 2, wherein: screw rods (10) are arranged in the symmetrical positions of the left side wall of the extrusion box (1) in a rotating mode, one end of each screw rod (10) located in the extrusion box (1) is in rotating butt with the right side wall of the extrusion box (1), the two screw rods (10) are opposite in steering, and spiral blades (11) capable of feeding and extruding the EPDM rubber sponge from left to right are sleeved on the parts of the peripheral side walls of each screw rod (10) located in the extrusion box (1).
4. The twin-screw extrusion device for EPDM sponge production as claimed in claim 1, wherein: extrusion hole (14) have been seted up at extrusion case (1) right side wall center, just extrusion case (1) right side wall adaptation extrusion hole (14) position department detachably installs extruder head pipe (15).
5. A twin screw extrusion apparatus for EPDM sponge production as claimed in claim 3, wherein: the left end of the screw rod (10) is connected with a driving connecting shaft (13), clamping blocks (12) are arranged at positions, matched with each screw rod (10), of the right side wall of the extrusion box (1), and the right end of the screw rod (10) is rotationally clamped with the clamping blocks (12).
6. The twin-screw extruder for EPDM sponge production of claim 5, wherein: the center of the top cover plate (5) is detachably embedded with a first bearing (16), the first rotating shaft (6) is rotatably arranged in the first bearing (16), one side wall of the material guiding transfer cylinder (3) is detachably embedded with a second bearing (17), the second rotating shaft (8) is rotatably arranged in the second bearing (17) in a penetrating manner, the symmetrical positions of the left side wall of the extrusion box (1) are detachably embedded with the third bearings (18), and the two screw rods (10) are respectively rotatably arranged in the corresponding third bearings (18) in a penetrating manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323312358.1U CN221417375U (en) | 2023-12-06 | 2023-12-06 | Double-screw extrusion device for EPDM sponge production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323312358.1U CN221417375U (en) | 2023-12-06 | 2023-12-06 | Double-screw extrusion device for EPDM sponge production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221417375U true CN221417375U (en) | 2024-07-26 |
Family
ID=92015308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323312358.1U Active CN221417375U (en) | 2023-12-06 | 2023-12-06 | Double-screw extrusion device for EPDM sponge production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221417375U (en) |
-
2023
- 2023-12-06 CN CN202323312358.1U patent/CN221417375U/en active Active
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