CN221112791U - Double-screw plastic extruder - Google Patents
Double-screw plastic extruder Download PDFInfo
- Publication number
- CN221112791U CN221112791U CN202323149758.5U CN202323149758U CN221112791U CN 221112791 U CN221112791 U CN 221112791U CN 202323149758 U CN202323149758 U CN 202323149758U CN 221112791 U CN221112791 U CN 221112791U
- Authority
- CN
- China
- Prior art keywords
- extrusion
- stub bar
- filter
- double
- screw
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 229920003023 plastic Polymers 0.000 title claims abstract description 52
- 239000004033 plastic Substances 0.000 title claims abstract description 52
- 238000001125 extrusion Methods 0.000 claims abstract description 65
- 230000007246 mechanism Effects 0.000 claims abstract description 25
- 238000001914 filtration Methods 0.000 claims description 31
- 239000011148 porous material Substances 0.000 claims description 23
- 238000007599 discharging Methods 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 12
- 239000000463 material Substances 0.000 abstract description 17
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 5
- 230000001105 regulatory effect Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 230000010485 coping Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000013618 particulate matter Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
Landscapes
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model belongs to the technical field of plastic production equipment, and particularly relates to a double-screw plastic extruder, which comprises: a base, on which a console is arranged; the double-screw extrusion mechanism comprises an extrusion stub bar and a screw driving motor; the feeding mechanism is arranged on the double-screw extrusion mechanism and used for conveying molten plastics; further comprises: the material head switching piece comprises a material head disc arranged at the extrusion material head, and the material head disc can switch different extrusion material heads through rotation; compared with the prior art, the utility model effectively improves the practicability and the working efficiency of the double-screw plastic extruder.
Description
Technical Field
The utility model belongs to the technical field of plastic production equipment, and particularly relates to a double-screw plastic extruder.
Background
The double screw plastic extruder is one kind of mechanical equipment for plastic processing industry and its operation principle and technological features are that through the interaction of two screws, plastic grains are heated, melted, mixed and extruded. The double-screw extruder plays an important role in the fields of plastic product production, plastic composite material preparation, plastic recycling and the like, and simultaneously promotes development and application of novel plastic materials, the technical characteristics of the double-screw extruder comprise double-screw rotation, temperature control and die extrusion, the double-screw rotation enables conveying, melting and mixing of plastic particles to be realized, uniformity and consistency of plastic blocks are ensured, the temperature control can accurately regulate a heating area, melting temperature and processing quality of plastic are ensured, the die extrusion is performed, the die is designed and the extruder operates, molten plastic is formed into a required plastic product through an extrusion port of the die, and compared with the traditional single-screw extruder, the double-screw extruder has the advantages of higher production efficiency, lower energy consumption, lower maintenance cost, higher product quality and the like, and meanwhile, the application field of the double-screw extruder is continuously expanded, and the application fields of the double-screw extruder comprise a plurality of fields such as construction, electronics, automobiles and the like;
The utility model discloses a double screw plastic extruder as disclosed in the patent of application number CN202211188060.1, its structure includes base case, power machine, control cabinet, extrusion tube, and this kind of current double screw extruder is in the use, and the discharge head shape of extrusion tube is fixed, can't satisfy not extruding of equidimension and the extrusion of different shapes, and the change of stub bar is not convenient enough, leads to the practicality and the work efficiency of double screw plastic extruder lower, and the particle impurity in the molten plastics is blockked up the discharge head easily simultaneously, from this needs to make the improvement.
Disclosure of utility model
The utility model aims at solving the technical problems and provides a double-screw plastic extruder so as to improve the practicability and the working efficiency of the double-screw plastic extruder.
In view of this, the present utility model provides a twin screw plastic extruder comprising:
The base is provided with a control console;
the double-screw extrusion mechanism comprises an extrusion stub bar and a screw driving motor;
The feeding mechanism is arranged on the double-screw extrusion mechanism and used for conveying molten plastics;
Further comprises:
The material head switching piece comprises a material head disc arranged at the extrusion material head, and the material head disc can switch different extrusion material heads through rotation;
wherein, the twin-screw extrusion mechanism sets up on the base.
In the technical scheme, through the arrangement of the stub bar switching piece, when the extrusion of different sizes and the extrusion of different shapes are handled, the stub bar disc is rotated to switch different extrusion stub bars so as to meet the extrusion of different sizes and the extrusion of different shapes.
In the above technical solution, further, the stub bar switching member further includes:
The fixed shaft is arranged on the side wall of the extrusion material head;
The discharging holes are uniformly distributed on the stub bar disc at intervals along the circumferential direction of the stub bar disc;
The clamping grooves are uniformly distributed on the circumferential surface of the stub bar disc at intervals along the circumferential direction of the stub bar disc and correspond to the discharging holes one by one;
the elastic clamping rod is arranged on the surface of the extrusion stub bar and is positioned at one side of the stub bar disc;
The material head plate is rotatably arranged on the fixed shaft, the inner side surface of the material head plate is attached to the surface of the extruded material head, the extruded material head can be communicated with a corresponding discharging hole on the material head plate, and the elastic clamping rod can be matched with a corresponding clamping groove.
In the above technical solution, further, the feeding mechanism further includes:
The feeding end of the feeding pipe is internally provided with a first filtering pore plate, and the feeding end of the feeding pipe is provided with an internal thread;
The feeding end of the filter pipe is communicated with an external molten plastic source, and the discharging end of the filter pipe is provided with external threads matched with the internal threads;
The second filtering pore plate is rotatably arranged at the discharge end of the filtering pipe;
The adjusting groove is arranged on the surface of the filter pipe, and an adjusting rod for adjusting the second filter pore plate is movably arranged in the adjusting groove;
The filter holes on the second filter pore plate are in one-to-one correspondence with the filter holes on the first filter pore plate, and the second filter pore plate can be mutually attached to the first filter pore plate.
In the above technical solution, further, the method further includes:
the auxiliary grooves are arranged on the side wall of the adjusting groove and are uniformly distributed at intervals along the circumferential direction;
the auxiliary elastic clamping blocks are arranged on the side walls of the adjusting rods and can be matched with the auxiliary grooves.
In the above technical solution, further, the method further includes:
The sealing ring is arranged between the filter pipe and the second filter pore plate and used for preventing molten plastics from entering the connecting surface of the filter pipe and the second filter pore plate;
The deformation groove is arranged on the pressure-bearing surface of the sealing ring;
The pressure-bearing part is arranged in the deformation groove and can deform under pressure.
The beneficial effects of the utility model are as follows:
1. extrusion of different sizes and extrusion of different shapes can be met through the arrangement of the stub bar switching piece, and the practicability and the working efficiency of the double-screw plastic extruder are effectively improved;
2. Particulate impurities in the molten plastic can be effectively filtered through improvement of the feeding mechanism, and blockage of the extrusion stub bar is prevented;
3. the filter effect can be effectively controlled through the arrangement of the first filter pore plate and the second filter pore plate, different filter requirements are met, and the practicability of the double-screw plastic extruder is further improved.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a schematic structural diagram of an embodiment of the present utility model.
FIG. 2 is a schematic view of the structure of the stub bar tray of the present utility model.
FIG. 3 is a schematic view of the structure of the regulating tank of the present utility model.
Fig. 4 is a schematic structural diagram of the first filter orifice plate and the second filter orifice plate in the matching state.
Fig. 5 is a schematic structural diagram of embodiment 4 of the present utility model.
FIG. 6 is a schematic view of a seal ring structure according to the present utility model.
The label in the figure is:
1-base, 2-twin screw extrusion mechanism, 20-extrusion stub bar, 21-screw driving motor, 3-feed mechanism, 30-inlet pipe, 31-first filtration orifice plate, 32-filtration pipe, 33-second filtration orifice plate, 34-adjustment tank, 35-adjusting rod, 36-auxiliary tank, 37-auxiliary elastic clamping block, 4-stub bar switching piece, 40-stub bar dish, 41-fixed axle, 42-discharge hole, 43-clamping groove, 44-elastic clamping rod, 5-sealing ring, 6-deformation tank, 7-pressure-bearing portion.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present application, it is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments in accordance with the present application. For ease of description, the dimensions of the various features shown in the drawings are not drawn to actual scale. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
Example 1:
The embodiment of the application provides a double-screw plastic extruder, which comprises: the base 1, the base 1 is provided with a console; a twin screw extrusion mechanism 2, the twin screw extrusion mechanism 2 comprising an extrusion head 20 and a screw drive motor 21; a feeding mechanism 3, wherein the feeding mechanism 3 is arranged on the double-screw extrusion mechanism 2 and is used for conveying molten plastics;
Further comprises: a head switching member 4, the head switching member 4 including a head plate 40 provided at the extrusion head 20, the head plate 40 being rotatable to switch different extrusion heads 20;
wherein the twin screw extrusion mechanism 2 is provided on the base 1.
In this embodiment, by setting the stub bar switching member, when coping with extrusion of different sizes and extrusion of different shapes, the rotating stub bar disc 40 switches different extrusion stub bars 20 so as to satisfy extrusion of different sizes and extrusion of different shapes.
Example 2:
the present embodiment provides a twin-screw plastic extruder, which has the following technical features in addition to the technical scheme including the above embodiment, and the stub bar switching member 4 further includes: a fixed shaft 41, the fixed shaft 41 being provided on a side wall of the extrusion head 20; the plurality of discharging holes 42, the shapes and the sizes of the plurality of discharging holes 42 are different, and the plurality of discharging holes 42 are uniformly distributed on the stub bar disc 40 at intervals along the circumferential direction of the stub bar disc 40; the clamping grooves 43 are uniformly distributed on the circumferential surface of the stub bar disc 40 at intervals along the circumferential direction of the stub bar disc 40 and correspond to the discharging holes 42 one by one; an elastic clamping rod 44, wherein the elastic clamping rod 44 is arranged on the surface of the extrusion stub bar 20 and is positioned at one side of the stub bar disc 40;
Wherein, the stub bar disc 40 is rotatably disposed on the fixed shaft 41, the inner surface of the stub bar disc 40 is attached to the surface of the extrusion stub bar 20, the extrusion stub bar 20 can be communicated with the corresponding discharge hole 42 on the stub bar disc 40, and the elastic clamping rod 44 can be matched with the corresponding clamping groove 43.
Moreover, the fixed shaft is located directly below the extrusion head 20, and the plurality of discharge holes 42 may include a circular large discharge hole 42, a circular small discharge hole 42, a circular porous discharge hole 42, a polygonal porous discharge hole 42, etc., and the elastic clamping rod 44 may be mounted on the surface of the extrusion head 20 in a conventional manner, for example, by providing a mounting seat on the surface of the extrusion head 20, where the elastic clamping rod 44 is fixedly mounted, and the telescopic end of the elastic clamping rod 44 faces the head tray 40.
In this embodiment, when coping with extrusion of different sizes and extrusion of different shapes, the stub bar disc 40 is rotated to drive the positions of the plurality of discharge holes 42 on the stub bar disc 40 to change, so that the discharge holes 42 punched out of different shapes are matched with the extrusion stub bar, and extrusion of different sizes and extrusion of different shapes are further satisfied, in the rotating process of the stub bar disc 40, the elastic clamping rod 44 is separated from the clamping groove 43 corresponding to the current discharge hole 42 first, and is matched with the clamping groove 43 corresponding to the downward-moving discharge hole 42 once along with the rotation of the stub bar disc 40, thereby assisting a user to control the rotation of the stub bar disc 40, playing the roles of positioning and limiting the rotating disc.
Example 3:
The present embodiment provides a twin-screw plastic extruder having the following technical features in addition to the technical scheme including the above embodiment, and the feeding mechanism 3 further includes: the feed pipe 30, the feed end of the feed pipe 30 is internally provided with a first filtering orifice plate 31, and the feed end of the feed pipe 30 is provided with internal threads; the feeding end of the filter tube 32 is communicated with an external molten plastic source, and the discharging end of the filter tube 32 is provided with external threads matched with the internal threads; the second filtering orifice plate 33, the second filtering orifice plate 33 is rotatably arranged at the discharge end of the filtering tube 32; the adjusting groove 34 is arranged on the surface of the filter tube 32, and an adjusting rod 35 for adjusting the second filter orifice plate 33 is movably arranged in the adjusting groove 34;
Wherein, the filter holes on the second filter hole plate 33 are in one-to-one correspondence with the filter holes on the first filter hole plate 31, and the second filter hole plate 33 can be mutually attached to the first filter hole plate 31.
Further comprises: a plurality of auxiliary grooves 36, wherein the auxiliary grooves 36 are arranged on the side wall of the adjusting groove 34 and are uniformly distributed at intervals along the circumferential direction; the auxiliary elastic clamping blocks 37 are arranged on the side walls of the adjusting rods 35 and can be matched with the auxiliary grooves 36.
Moreover, the discharge end of the filter plate is provided with an annular groove for installing the second filter orifice plate 33, one side of the second filter orifice plate 33 facing the filter plate is provided with an annular extension plate, the second filter orifice plate 33 is rotatably connected to the discharge end of the filter tube 32 through the cooperation of the annular extension plate and the annular groove, the regulating groove 34 is communicated with the annular groove, the regulating groove 34 is arranged along the circumferential extension of the filter tube 32, the regulating rod 35 is connected with the annular extension plate of the second filter orifice plate 33, the positions of the auxiliary grooves 36 correspond to the alignment degree of the filter holes on the first filter orifice plate 31 and the second filter orifice plate 33, and at least three auxiliary grooves 36 in the auxiliary grooves 36 correspond to the three positions of the complete alignment, half alignment and complete non-alignment of the filter holes on the first filter orifice plate 31 and the second filter orifice plate 33 respectively.
In this embodiment, through the arrangement of the first filtering orifice plate 31 and the second filtering orifice plate 33, when molten plastics passes through the filtering pipe 32 and the feeding pipe 30, particulate matter impurities in the molten plastics can be filtered by the first filtering orifice plate 31 and the second filtering orifice plate 33, so that the extrusion head 20 is prevented from being blocked by particulate matter, when the filtering requirement of the molten plastics is changed, the second filtering orifice plate 33 is driven to rotate by the adjusting rod 35, so that the originally completely aligned filtering orifices on the first filtering orifice plate 31 and the second filtering orifice plate are staggered, the filtering precision is changed, different filtering requirements are met, and the auxiliary groove 36 and the auxiliary elastic clamping block 37 can further help a user to identify the current filtering precision, so that the working efficiency is effectively improved.
Example 4:
The embodiment provides a twin-screw plastic extruder, which includes the following technical features in addition to the technical scheme of the above embodiment, and further includes: a sealing ring 5, the sealing ring 5 being arranged between the filter tube 32 and the second filter orifice 33 for preventing molten plastic from entering into the connection surface of the filter tube 32 and the second filter orifice 33; the deformation groove 6 is arranged on the pressure-bearing surface of the sealing ring 5; the pressure-bearing part 7, the pressure-bearing part 7 is set up in the deformation groove 6, the pressure-bearing part 7 can take place deformation under pressure.
Moreover, the seal ring 5 is located on the inner side surface of the annular extension plate of the second filter orifice 33, and the seal ring 5 is disposed concentrically with the filter tube 32.
In this embodiment, the sealing ring 5 can effectively prevent the molten plastic from entering between the second filter orifice plate 33 and the filter tube 32 and affecting the adjustment of the second filter orifice plate 33, and meanwhile, the pressure-bearing portion 7 can deform when receiving pressure so as to squeeze the deformation groove 6, so that the sealing ring 5 expands to two sides, thereby improving the sealing performance along with the pressure change, and further preventing the molten plastic from entering between the second filter orifice plate 33 and the filter tube 32 and affecting the adjustment of the second filter orifice plate 33.
The embodiments of the present application have been described above with reference to the accompanying drawings, in which the embodiments of the present application and features of the embodiments may be combined with each other without conflict, the present application is not limited to the above-described embodiments, which are merely illustrative, not restrictive, of the present application, and many forms may be made by those of ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are protected by the present application.
Claims (5)
1. A twin screw plastic extruder comprising:
A base (1), wherein a console is arranged on the base (1);
the double-screw extrusion mechanism (2), wherein the double-screw extrusion mechanism (2) comprises an extrusion head (20) and a screw driving motor (21);
A feeding mechanism (3), wherein the feeding mechanism (3) is arranged on the double-screw extrusion mechanism (2) and is used for conveying molten plastics;
characterized by further comprising:
A head switch (4), the head switch (4) comprising a head disc (40) arranged at the extrusion head (20), the head disc (40) being rotatable to switch different extrusion heads (20);
Wherein the double-screw extrusion mechanism (2) is arranged on the base (1).
2. A twin screw plastic extruder according to claim 1, wherein the stub bar switch (4) further comprises:
A fixed shaft (41), the fixed shaft (41) being provided on a side wall of the extrusion head (20);
The shapes and the sizes of the discharge holes (42) are different, and the discharge holes (42) are uniformly distributed on the stub bar disc (40) at intervals along the circumferential direction of the stub bar disc (40);
The clamping grooves (43) are uniformly distributed on the circumferential surface of the stub bar disc (40) at intervals along the circumferential direction of the stub bar disc (40) and correspond to the discharging holes (42) one by one;
An elastic clamping rod (44), wherein the elastic clamping rod (44) is arranged on the surface of the extrusion stub bar (20) and is positioned at one side of the stub bar disc (40);
The device comprises a fixed shaft (41), a stub bar disc (40) is rotatably arranged on the fixed shaft (41), the inner side surface of the stub bar disc (40) is attached to the surface of an extrusion stub bar (20), the extrusion stub bar (20) can be communicated with a corresponding discharging hole (42) on the stub bar disc (40), and an elastic clamping rod (44) can be matched with a corresponding clamping groove (43).
3. A twin screw plastic extruder according to claim 2, wherein the feeding mechanism (3) further comprises:
The device comprises a feed pipe (30), wherein a first filter pore plate (31) is arranged in the feed end of the feed pipe (30), and an internal thread is arranged at the feed end of the feed pipe (30);
The feeding end of the filter pipe (32) is communicated with an external molten plastic source, and the discharging end of the filter pipe (32) is provided with external threads matched with the internal threads;
The second filtering pore plate (33), the said second filtering pore plate (33) rotates and sets up in the discharge end of the filter tube (32);
The adjusting groove (34) is formed in the surface of the filter pipe (32), and an adjusting rod (35) for adjusting the second filter pore plate (33) is movably arranged in the adjusting groove (34);
Wherein, the filtration pore on the second filtration pore plate (33) corresponds with the filtration pore on the first filtration pore plate (31) one by one, second filtration pore plate (33) can laminate each other with first filtration pore plate (31).
4. A twin screw plastic extruder as defined in claim 3, further comprising:
The auxiliary grooves (36) are arranged on the side wall of the adjusting groove (34) and are uniformly distributed at intervals along the circumferential direction;
the auxiliary elastic clamping blocks (37) are arranged on the side walls of the adjusting rods (35) and can be matched with the auxiliary grooves (36).
5. A twin screw plastic extruder as defined in claim 3, further comprising:
A sealing ring (5), wherein the sealing ring (5) is arranged between the filter pipe (32) and the second filter pore plate (33) and is used for preventing molten plastics from entering a connecting surface of the filter pipe (32) and the second filter pore plate (33);
The deformation groove (6) is formed in the pressure bearing surface of the sealing ring (5);
The pressure-bearing part (7), pressure-bearing part (7) sets up in deformation groove (6), pressure-bearing part (7) can take place deformation under pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323149758.5U CN221112791U (en) | 2023-11-21 | 2023-11-21 | Double-screw plastic extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323149758.5U CN221112791U (en) | 2023-11-21 | 2023-11-21 | Double-screw plastic extruder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221112791U true CN221112791U (en) | 2024-06-11 |
Family
ID=91344008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323149758.5U Active CN221112791U (en) | 2023-11-21 | 2023-11-21 | Double-screw plastic extruder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221112791U (en) |
-
2023
- 2023-11-21 CN CN202323149758.5U patent/CN221112791U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN221112791U (en) | Double-screw plastic extruder | |
| CN201538025U (en) | Multi-product extrusion molding device | |
| CN102039658B (en) | Integral extruding machine and molding process thereof | |
| CN201538027U (en) | Large-scale polymer product extrusion molding device | |
| EP2109525A1 (en) | Extruder with means for adjusting a width of extruded object | |
| CN219095852U (en) | Multiple extrusion device | |
| CN212312720U (en) | Filtering device for plastic extruder | |
| CN212400301U (en) | Preservative film extruder die head structure | |
| CN211250954U (en) | Novel double-screw granulator | |
| CN218342777U (en) | Extruder of thermoplastic production usefulness | |
| CN220390256U (en) | Filtering device of extruder | |
| CN202439206U (en) | Non-stop screen exchanger for polypropylene waste material extruder by adopting sequential screwing method | |
| CN214726343U (en) | Extruder head capable of quickly replacing net | |
| RU2422275C1 (en) | Method of producing structural polycarbonate sheet | |
| CN220576561U (en) | Pipe production extrusion equipment | |
| CN220841371U (en) | Extrusion mechanism is used in production of car plastic products | |
| CN219522963U (en) | Extruder for PPR pipe fitting machining | |
| CN216578712U (en) | EP optical lens sheet granulator | |
| CN212920348U (en) | Particle extruder die head with adjustable extrusion shape | |
| CN215040115U (en) | Quick assembling and disassembling structure for extruder head filter screen | |
| CN220052835U (en) | Wood-plastic plate extrusion molding machine | |
| CN220349009U (en) | Improved double-screw extruder for producing plastic products | |
| CN216182744U (en) | Extrusion film blowing device for environment-friendly degradable film | |
| CN201538028U (en) | Integral extruder | |
| CN217514501U (en) | Plastic granules extruder convenient to ejection of compact |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant |