CN214395310U - Extrusion forming device for plastic pipeline production and processing - Google Patents
Extrusion forming device for plastic pipeline production and processing Download PDFInfo
- Publication number
- CN214395310U CN214395310U CN202022496587.3U CN202022496587U CN214395310U CN 214395310 U CN214395310 U CN 214395310U CN 202022496587 U CN202022496587 U CN 202022496587U CN 214395310 U CN214395310 U CN 214395310U
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- screw
- screw rod
- extrusion
- barrel
- machine barrel
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- 238000001125 extrusion Methods 0.000 title claims abstract description 46
- 239000004033 plastic Substances 0.000 title claims abstract description 32
- 229920003023 plastic Polymers 0.000 title claims abstract description 32
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 13
- 239000003638 chemical reducing agent Substances 0.000 claims description 8
- 238000000071 blow moulding Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 abstract description 14
- 239000000155 melt Substances 0.000 abstract description 8
- 238000002844 melting Methods 0.000 abstract description 4
- 230000008018 melting Effects 0.000 abstract description 4
- 239000000758 substrate Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 2
- 239000012768 molten material Substances 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003756 stirring Methods 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 utility model discloses an extrusion device is used in plastic pipe way production and processing, which comprises a substrate, the upper end fixed mounting of base plate has the barrel, one side inner wall of barrel rotates installs first screw rod, the one end fixedly connected with second screw rod of first screw rod, the one end fixedly connected with third screw rod of second screw rod, the thread groove interval of first screw rod is less than the thread groove interval of second screw rod, the thread groove interval of second screw rod is less than the thread groove interval of third screw rod, fixed mounting has two sets of annular plates in the barrel, and a set of annular plate is located first screw rod and second screw rod junction, and another set of annular plate is located second screw rod and third screw rod junction. The utility model makes the extrusion propulsion speed of each section different, achieves the purpose of prolonging the extrusion time of the melt from the head, and makes the extrudate more uniform; the extrusion pressure is increased, the material melting is accelerated, the material melting is more uniform, and the quality of the formed product is higher.
Description
Technical Field
The utility model relates to a plastic conduit processing equipment technical field specifically is a plastic pipe is extrusion device for production and processing.
Background
The plastic pipeline forming equipment mostly adopts an extrusion principle, after plastic is added into a machine barrel of an extruder from a hopper, the plastic is forcibly pushed to the direction of a machine head by screw threads along with the rotation of a screw rod, and the volume between the screw threads is gradually reduced, so that the advancing material is subjected to great pressure and is heated by a heat source of the machine barrel; in addition, when the plastic is subjected to forces such as compression, shearing, and stirring during movement, a large amount of heat is generated by friction with the cylinder, the screw, and the plastic molecules. The plastic in the cylinder is heated continuously, the physical state of the plastic is gradually changed from a glass state to a high elastic state and finally to a viscous state, so that the plastic is completely plasticized; because the screw rod is constantly and constantly rotated, the plasticized material is extruded from the die opening of the machine head in equal pressure and equal quantity to form a plastic product with a certain shape, and the plastic product is cooled and shaped to complete the extrusion molding work.
In general, the following mixing phenomena occur in the melt, in particular in the melt conveying section: firstly, the components in the material system are uniformly dispersed and mixed, and the components refer to resin and various additives. The second is thermal mixing because the temperature of the first melted material is the highest and the temperature of the second melted material is the lowest during extrusion, and the temperature of the interface between the solid and the melt is just the melting point of the plastic. If the melt is extruded from the head too early, the extrudate will be uneven in all parts, and if the extrudate is light, the extrudate will have color difference and deformation, and if the extrudate is heavy, the extrudate will crack. The extrusion advancing speed of each section of most screws of the existing pipeline extrusion forming device is the same, so that the extrusion time of a molten material from a machine head is too early, the extrusion materials are not uniform everywhere, if the rotating speed of the screws is slowed down, the extrusion process of each section is slowed down, and the processing speed is influenced, so that the extrusion forming device for producing and processing the plastic pipelines needs to be provided.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an extrusion device is used in plastic pipe production and processing, the extrusion advancing speed that can make the fuse-element carry the section is less, can make the material melt more evenly to solve the problem of proposing among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: an extrusion molding device for plastic pipeline production comprises a base plate, a machine barrel is fixedly arranged at the upper end of the base plate, a first screw is rotatably arranged on the inner wall of one side of the machine barrel, one end of the first screw is fixedly connected with a second screw, one end of the second screw is fixedly connected with a third screw, the screw groove space of the first screw is smaller than that of the second screw, the screw groove space of the second screw is smaller than the screw groove space of the third screw, two groups of annular plates are fixedly arranged in the machine barrel, one group of annular plates is positioned at the joint of the first screw and the second screw, the other group of annular plates is positioned at the joint of the second screw and the third screw, the extrusion device is characterized in that an extrusion hole is formed in the annular plate, one end of the machine barrel is communicated with a blow molding machine through a connecting pipe, a feed port is communicated with the machine barrel, and the feed port is located above the first screw rod.
Preferably, the upper end fixed mounting of base plate has two sets of bracing pieces, and two sets of all seted up the mounting hole on the bracing piece, the barrel joint is in two sets of mounting holes.
Preferably, the other end of the first screw is fixedly connected with a rotating rod, one side of the machine barrel is provided with a bearing, and the rotating rod is inserted into the bearing.
Preferably, the upper end fixed mounting of base plate has the motor, the one end of motor output shaft is rotated and is connected with the speed reducer, the one end and the dwang fixed connection of speed reducer output shaft.
Preferably, an annular filter screen is fixedly mounted in the machine barrel, one end of the third screw penetrates through the annular filter screen, and a gap is formed between the third screw and the annular filter screen.
Preferably, the cylinder is communicated with an exhaust valve, and the exhaust valve is positioned above the third screw.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses a be provided with first screw rod, second screw rod and third screw rod, and the screw groove interval of the three increases in proper order, makes the extrusion pressure of first screw rod be greater than the second screw rod in the extrusion process, and the extrusion pressure of second screw rod is greater than the third screw rod, makes the extrusion propulsion speed of each section different, has reached the purpose of extension melt from the aircraft nose extrusion time, makes the extrudate more even;
2. the utility model discloses a set up the annular plate to be provided with on the annular plate and extrude the hole, make the material that does not melt completely can't pass through the annular plate, further make extrusion pressure increase, material melting with higher speed makes the material melt more even, and shaping product quality is higher.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the annular plate of the present invention;
fig. 3 is a schematic view of the ring-shaped filter screen of the present invention.
In the figure: 1. a substrate; 2. a support bar; 3. a barrel; 4. a first screw; 5. a second screw; 6. a third screw; 7. rotating the rod; 8. a speed reducer; 9. a motor; 10. an annular plate; 11. a connecting pipe; 12. a feed inlet; 13. a blow molding machine; 14. an exhaust valve; 15. an annular filter screen; 16. a bearing; 17. and extruding the holes.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: an extrusion forming device for plastic pipeline production comprises a base plate 1, two groups of support rods 2 are fixedly mounted at the upper end of the base plate 1, mounting holes are formed in the two groups of support rods 2, and a machine barrel 3 is clamped in the two groups of mounting holes;
the other end of the first screw rod 4 is fixedly connected with a rotating rod 7, one side of the machine barrel 3 is provided with a bearing 16, the rotating rod 7 is inserted in the bearing 16, the upper end of the base plate 1 is fixedly provided with a motor 9, one end of an output shaft of the motor 9 is rotatably connected with a speed reducer 8, and one end of an output shaft of the speed reducer 8 is fixedly connected with the rotating rod 7;
drive dwang 7 through motor 9 and rotate to drive first screw rod 4 and rotate, speed reducer 8 can be used to reduce dwang 7 rotational speed, in order to avoid first screw rod 4 rotational speed too fast, cause the extrusion effect relatively poor.
One end of the first screw rod 4 is fixedly connected with a second screw rod 5, one end of the second screw rod 5 is fixedly connected with a third screw rod 6, the pitch of the screw grooves of the first screw rod 4 is smaller than that of the screw grooves of the second screw rod 5, and the pitch of the screw grooves of the second screw rod 5 is smaller than that of the screw grooves of the third screw rod 6;
the screw groove intervals of the first screw rod 4, the second screw rod 5 and the third screw rod 6 are sequentially increased, so that the extrusion pressure of the first screw rod 4 is greater than that of the second screw rod 5, the extrusion propulsion speed of each section is different, the purpose of prolonging the extrusion time of the melt from a machine head is achieved, and the extrudate is more uniform
An annular filter screen 15 is fixedly arranged in the machine barrel 3, one end of the third screw 6 penetrates through the annular filter screen 15, and a gap is formed between the third screw 6 and the annular filter screen 15;
the non-melted materials can be filtered by the annular filter screen 15, and the annular filter screen 15 can cut bubbles, so that the bubbles in the melt are reduced, and the product quality is improved.
Two groups of annular plates 10 are fixedly installed in the machine barrel 3, one group of annular plates 10 is positioned at the joint of the first screw rod 4 and the second screw rod 5, the other group of annular plates 10 is positioned at the joint of the second screw rod 5 and the third screw rod 6, extrusion holes 17 are formed in the annular plates 10, and one end of the machine barrel 3 is communicated with a blow molding machine 13 through a connecting pipe 11;
a feed inlet 12 is communicated with the machine barrel 3, the feed inlet 12 is positioned above the first screw 4, a vent valve 14 is communicated with the machine barrel 3, and the vent valve 14 is positioned above the third screw 6.
The plastic material is fed through the feed port 12 and the gas in the melt is discharged through the gas discharge valve 14, thereby preventing the formation of bubbles in the molded product during extrusion.
The working principle is as follows: after plastics are added into the feeding hole 12 and enter the space of the machine barrel 3, the motor 9 is started, the plastics are pushed by the first screw rod 4 to be extruded forwards, after the plastics enter the machine barrel 3, every time the screw rod rotates for one rotation, all the plastics are conveyed forwards by a lead, the screw groove intervals of the first screw rod 4, the second screw rod 5 and the third screw rod 6 are sequentially increased, the extrusion pressure of the first screw rod 4 is larger than that of the second screw rod 5 in the extrusion process, the extrusion pressure of the second screw rod 5 is larger than that of the third screw rod 6, the extrusion propulsion speeds of all sections are different, the purpose of prolonging the extrusion time of the molten materials from the machine head is achieved, and the plastics enter the blow molding machine after the machine barrel 3 to be cooled and blow molded.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides an extrusion device is used in plastic pipe production and processing, includes base plate (1), its characterized in that: the upper end of the base plate (1) is fixedly provided with a machine barrel (3), the inner wall of one side of the machine barrel (3) is rotatably provided with a first screw (4), one end of the first screw (4) is fixedly connected with a second screw (5), one end of the second screw (5) is fixedly connected with a third screw (6), the screw groove interval of the first screw (4) is smaller than that of the second screw (5), the screw groove interval of the second screw (5) is smaller than that of the third screw (6), two groups of annular plates (10) are fixedly arranged in the machine barrel (3), one group of annular plates (10) are positioned at the joint of the first screw (4) and the second screw (5), the other group of annular plates (10) are positioned at the joint of the second screw (5) and the third screw (6), extrusion holes (17) are formed in the annular plates (10), one end of the machine barrel (3) is communicated with a blow molding machine (13) through a connecting pipe (11), a feed inlet (12) is communicated with the machine barrel (3), and the feed inlet (12) is positioned above the first screw (4).
2. The extrusion molding apparatus for manufacturing plastic pipes as claimed in claim 1, wherein: the upper end fixed mounting of base plate (1) has two sets of bracing pieces (2), and is two sets of all seted up the mounting hole on bracing piece (2), barrel (3) joint is in two sets of mounting holes.
3. The extrusion molding apparatus for manufacturing plastic pipes as claimed in claim 1, wherein: the other end fixedly connected with dwang (7) of first screw rod (4), bearing (16) are installed to one side of barrel (3), dwang (7) are pegged graft in bearing (16).
4. The extrusion molding apparatus for manufacturing plastic pipes as claimed in claim 3, wherein: the upper end fixed mounting of base plate (1) has motor (9), the one end of motor (9) output shaft is rotated and is connected with speed reducer (8), the one end and dwang (7) fixed connection of speed reducer (8) output shaft.
5. The extrusion molding apparatus for manufacturing plastic pipes as claimed in claim 1, wherein: fixed mounting has annular filter screen (15) in barrel (3), annular filter screen (15) are run through to the one end of third screw rod (6), and are equipped with the clearance between third screw rod (6) and annular filter screen (15).
6. The extrusion molding apparatus for manufacturing plastic pipes as claimed in claim 1, wherein: an exhaust valve (14) is communicated with the machine barrel (3), and the exhaust valve (14) is positioned above the third screw (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022496587.3U CN214395310U (en) | 2020-11-02 | 2020-11-02 | Extrusion forming device for plastic pipeline production and processing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022496587.3U CN214395310U (en) | 2020-11-02 | 2020-11-02 | Extrusion forming device for plastic pipeline production and processing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214395310U true CN214395310U (en) | 2021-10-15 |
Family
ID=78033361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022496587.3U Expired - Fee Related CN214395310U (en) | 2020-11-02 | 2020-11-02 | Extrusion forming device for plastic pipeline production and processing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214395310U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114986846A (en) * | 2022-05-27 | 2022-09-02 | 安徽戴家工艺有限公司 | Polyethylene foaming extrusion molding device and method |
-
2020
- 2020-11-02 CN CN202022496587.3U patent/CN214395310U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114986846A (en) * | 2022-05-27 | 2022-09-02 | 安徽戴家工艺有限公司 | Polyethylene foaming extrusion molding device and method |
| CN114986846B (en) * | 2022-05-27 | 2024-04-12 | 安徽戴家实业股份有限公司 | Polyethylene foaming extrusion molding device and method |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211015 |