CN114603838A - Mixing section device for extruder - Google Patents
Mixing section device for extruder Download PDFInfo
- Publication number
- CN114603838A CN114603838A CN202210124054.3A CN202210124054A CN114603838A CN 114603838 A CN114603838 A CN 114603838A CN 202210124054 A CN202210124054 A CN 202210124054A CN 114603838 A CN114603838 A CN 114603838A
- Authority
- CN
- China
- Prior art keywords
- screw
- screw rod
- shell
- mixing section
- head
- 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.)
- Pending
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
- B29C55/28—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of blown tubular films, e.g. by inflation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/252—Drive or actuation means; Transmission means; Screw supporting means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/505—Screws
Abstract
The invention relates to a mixing section device for an extruder, which comprises a shell, a screw rod body and a screw rod head; one end of the shell is provided with a feed inlet, and the other end of the shell is provided with a discharge outlet; the inner wall of the shell is provided with a plurality of heaters; the screw rod body is horizontally and rotatably arranged in the shell; the shell is provided with a driving device, and the rotation of the screw rod body is realized under the driving of the driving device; the other end of the screw rod body is provided with a connecting part; one end of the screw head is provided with a connecting hole in an inward concave manner, and the screw head is detachably fixed on the connecting part on the screw body through the connecting hole; the screw head and the screw body share the same axis; the screw rod body drives the screw rod head to rotate. According to the mixing section device for the extruder, the mixing section is made into a split type, the screw head can be detached and replaced, and the mixing effect is good.
Description
Technical Field
The invention relates to the technical field of blow molding equipment, in particular to a mixing section device for an extruder.
Background
Extruders are commonly used to heat and melt a solid input material (e.g., plastic, or thermoplastic material) and extrude the material in a flowable or molten state. The extruded material is directed into a die and subsequently cooled and solidified to form an article having a shape defined by the die.
The key parts of the extruder are a screw and a machine barrel, the screw rotates in the machine barrel and mainly has the functions of conveying, compacting, melting and plasticizing raw materials into a molten state and extruding molten plastic fluid to advance to complete injection molding, and the foaming plate is formed by uniformly mixing a foaming agent and the molten material in the extruder and then extruding, but the problems that part of raw materials in the extruder are not completely melted and the foaming agent and the molten material are not uniformly mixed exist at present, so that the product quality is reduced.
In order to solve the above problems, the present applicant proposed a kneading block device for an extruder.
Disclosure of Invention
The invention aims to provide a mixing section device for an extruder, wherein the mixing section is made into a split type, a screw head can be detached and replaced, and the mixing effect is good.
In order to achieve the purpose of the invention, the mixing section device for the extruder comprises a shell, a screw rod body and a screw head;
a feed inlet is formed in one end of the shell, and a discharge outlet is formed in the other end of the shell; a plurality of heaters are arranged on the inner wall of the shell;
the screw rod body is horizontally and rotatably arranged in the shell; the shell is provided with a driving device, and the rotation of the screw rod body is realized under the driving of the driving device;
the other end of the screw rod body is provided with a connecting part; one end of the screw head is provided with a connecting hole in an inwards concave manner, and the screw head is detachably fixed on the connecting part on the screw body through the connecting hole; the screw head and the screw body share the same axis; the screw rod head is driven to rotate by the screw rod body.
Preferably, the driving device is a servo motor.
Preferably, the output end of the clothes motor is connected with a reduction gearbox, the input end of the reduction gearbox is connected with the output end of the clothes motor, and the output end of the reduction gearbox is connected with one end of the screw rod body.
Preferably, an adjusting gasket is further sleeved between the bottom of the screw head and the connecting part.
Preferably, a plurality of groups of first protruding tooth modules are arranged on the screw head at equal intervals along the axial direction of the screw head, each group of first protruding tooth modules comprises a plurality of first protruding teeth, and the first protruding teeth are arranged on the screw head in an annular array mode.
Preferably, a pin sleeve is fixed in the casing through a bolt, and the screw head is sleeved in the pin sleeve; a plurality of groups of second protruding tooth modules are arranged on the inner wall of the pin sleeve along the axis direction of the pin sleeve, each group of second protruding tooth modules comprises a plurality of second protruding teeth, and the second protruding teeth are arranged in the pin sleeve in an annular array mode; the screw head is sleeved on the pin sleeve, and a first protruding tooth module is arranged between every two adjacent second protruding tooth modules.
Compared with the prior art, the mixing section device for the extruder disclosed by the invention further has the following advantages:
(1) the method is different from the mixing section of a common extruder: the mixing section is made into a split type, the screw head can be detached from the screw body, and the screw head can be detached and replaced; the screw head and the pin sleeve can be designed so as to adapt to different products and different raw materials;
(2) simple structure, convenient operation is swift.
Drawings
FIG. 1 is a schematic structural view of a kneading block apparatus for an extruder according to the present embodiment;
FIG. 2 is an enlarged view of a portion A of FIG. 1;
fig. 3 is a schematic structural view of the screw body in the embodiment;
FIG. 4 is an enlarged view of a portion B of FIG. 3;
FIG. 5 is a schematic structural view of a screw head in the present embodiment;
fig. 6 is a schematic structural view of the pin bush in this embodiment.
Detailed Description
The invention is further described below with reference to the following figures and specific examples.
As shown in fig. 1, a mixing section device for an extruder comprises a machine shell 1, a screw body 2 and a screw head 6;
as shown in fig. 1, a feed inlet 3 is arranged at one end of the casing 1, and a discharge outlet 4 is arranged at the other end of the casing 1; a plurality of heaters are arranged on the inner wall of the shell 1;
the screw rod body 2 is horizontally and rotatably arranged in the machine shell 1; as shown in fig. 3, a driving device is disposed on the housing 1, and the screw body 2 is driven by the driving device to rotate. In this embodiment, the driving device is a servo motor. Furthermore, the output end of the clothes motor is connected with a reduction gearbox, the input end of the reduction gearbox is connected with the output end of the clothes motor, and the output end of the reduction gearbox is connected with one end of the screw rod body; so set up, can control the rotational speed of private clothes motor accurately.
As shown in fig. 4, a connecting portion 8 is provided at the other end of the screw body 2; as shown in fig. 5, one end of the screw head 6 is provided with a connecting hole 10 in an inward concave manner, and the screw head 6 is detachably fixed on the connecting portion 8 of the screw body 2 through the connecting hole 10; the screw head 6 and the screw body 2 share the same axis; the screw head 6 is driven to rotate by the screw body 2.
In this embodiment, the bottom of the screw head 6 and the connecting portion 8 are further sleeved with an adjusting gasket 7, so that the length difference of the screw head 6 caused by the problem of machining precision can be made up, and the molten raw material can be conveniently conveyed.
Firstly, raw materials of plastic products are poured into the machine shell 1 through the feeding hole 3 on the machine shell 1, the screw body 2 rotates under the driving of the driving device, the raw materials are heated by the heater on the inner wall of the machine shell 1 to be melted into molten state, and are conveyed forwards under the driving of the screw body 2, and finally, the raw materials are discharged through the discharging hole 4 on the machine shell 1.
In this embodiment, as shown in fig. 2 and 5, a plurality of sets of first protrusion tooth modules are arranged on the screw head 6 at equal intervals along the axial direction thereof, each set of first protrusion tooth modules includes a plurality of first protrusion teeth 9, and the plurality of first protrusion teeth 9 are arranged on the screw head 6 in an annular array manner, so that the path through which the raw material flows can be lengthened, and the uniformity of the raw material mixture can be further ensured.
Further, as shown in fig. 2 and 6, a pin sleeve 5 is fixed in the casing 1 through a bolt, and the screw head 6 is sleeved in the pin sleeve 5; a plurality of groups of second protruding tooth modules are arranged on the inner wall of the pin sleeve 5 along the axial direction of the pin sleeve, each group of second protruding tooth module comprises a plurality of second protruding teeth 11, and the plurality of second protruding teeth 11 are arranged in the pin sleeve 5 in an annular array manner; the screw head 6 is sleeved on the pin sleeve 5, and a first raised tooth module is arranged between every two adjacent second raised tooth modules; in this way, the path through which the raw materials flow can be further extended, and the effect of kneading the raw materials can be further improved.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (6)
1. A mixing section device for an extruder is characterized by comprising a shell, a screw rod body and a screw rod head;
a feed inlet is formed in one end of the shell, and a discharge outlet is formed in the other end of the shell; a plurality of heaters are arranged on the inner wall of the shell;
the screw rod body is horizontally and rotatably arranged in the shell; the shell is provided with a driving device, and the rotation of the screw rod body is realized under the driving of the driving device;
the other end of the screw rod body is provided with a connecting part; one end of the screw head is provided with a connecting hole in an inwards concave manner, and the screw head is detachably fixed on the connecting part on the screw body through the connecting hole; the screw head and the screw body share the same axis; the screw rod body drives the screw rod head to rotate.
2. The mixing section apparatus for an extruder according to claim 1, wherein said driving means is a servo motor.
3. The mixing section device for the extruder as claimed in claim 2, wherein the output end of the motor for private clothes is connected with a reduction box, the input end of the reduction box is connected with the output end of the motor for private clothes, and the output end of the reduction box is connected with one end of the screw rod body.
4. The mixing section device for the extruder according to claim 1, wherein an adjusting shim is further sleeved between the bottom of the screw head and the connecting portion.
5. A mixing section apparatus for an extruder as claimed in claim 1, wherein said screw head has a plurality of sets of first raised tooth modules equally spaced along its axis, each set of said first raised tooth modules including a plurality of first raised teeth, said plurality of first raised teeth being disposed on said screw head in an annular array.
6. The mixing section device for the extruder according to claim 5, wherein a pin sleeve is fixed in the casing through a bolt, and the screw head is sleeved in the pin sleeve; a plurality of groups of second protruding tooth modules are arranged on the inner wall of the pin sleeve along the axis direction of the pin sleeve, each group of second protruding tooth modules comprises a plurality of second protruding teeth, and the second protruding teeth are arranged in the pin sleeve in an annular array mode; the screw head is sleeved on the pin sleeve, and a first protruding tooth module is arranged between every two adjacent second protruding tooth modules.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210124054.3A CN114603838A (en) | 2022-02-10 | 2022-02-10 | Mixing section device for extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210124054.3A CN114603838A (en) | 2022-02-10 | 2022-02-10 | Mixing section device for extruder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114603838A true CN114603838A (en) | 2022-06-10 |
Family
ID=81858216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210124054.3A Pending CN114603838A (en) | 2022-02-10 | 2022-02-10 | Mixing section device for extruder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114603838A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111633949A (en) * | 2020-06-30 | 2020-09-08 | 苏州同大机械有限公司 | Screw structure of plasticizing charging barrel |
| CN213808394U (en) * | 2020-12-08 | 2021-07-27 | 温州瑞创紧固件制造有限公司 | Screw rod |
-
2022
- 2022-02-10 CN CN202210124054.3A patent/CN114603838A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111633949A (en) * | 2020-06-30 | 2020-09-08 | 苏州同大机械有限公司 | Screw structure of plasticizing charging barrel |
| CN213808394U (en) * | 2020-12-08 | 2021-07-27 | 温州瑞创紧固件制造有限公司 | Screw rod |
Non-Patent Citations (1)
| Title |
|---|
| 高级技工学校机械类教材编审委员会组织: "《机械制造工艺与装备》", 中国劳动出版社 * |
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