CN115923084B - Melt extruder - Google Patents
Melt extruder Download PDFInfo
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- CN115923084B CN115923084B CN202310089075.0A CN202310089075A CN115923084B CN 115923084 B CN115923084 B CN 115923084B CN 202310089075 A CN202310089075 A CN 202310089075A CN 115923084 B CN115923084 B CN 115923084B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention is applicable to the relevant field of plastic product processing, and provides a melt extruder, which comprises: the device comprises a support frame and an extrusion cylinder arranged on the support frame, wherein the extrusion cylinder is respectively provided with a feed pipe and a discharge port; the screw assembly is arranged in the extrusion cylinder; the screw rod assembly comprises a first half screw rod, a second half screw rod and a supporting box, the supporting box is in running fit with the extrusion barrel, a driving assembly for driving the supporting box to rotate is further arranged on the supporting frame, the first half screw rod and the second half screw rod are in sliding fit with the supporting box, a pushing piece is further arranged between the first half screw rod and the second half screw rod, the pushing piece comprises a push pipe, a push rod and an expansion rod, the expansion rod is used for connection between the push rod and the first half screw rod and between the push rod and the second half screw rod, and a first storage groove for storing the expansion rod is further formed in the push rod.
Description
Technical Field
The invention relates to the field related to plastic product processing, in particular to a melt extruder.
Background
In the process of producing plastic products, a melt extruder is generally used, and the melt extruder relies on pressure and shearing force generated by rotation of a screw, so that materials in a molten state can be sufficiently plasticized and uniformly mixed, and then molded through a die.
The screw structure in the existing melt extruder is more traditional, so that even mixing of molten materials is difficult to realize, and the production quality of plastic products is seriously affected. Therefore, in view of the above-mentioned current situation, there is an urgent need to provide a melt extruder to overcome the shortcomings in the current practical applications.
Disclosure of Invention
The invention aims to provide a melt extruder which aims to solve the problems in the technical background.
The present invention is achieved by a melt extruder comprising:
the device comprises a support frame and an extrusion cylinder arranged on the support frame, wherein the extrusion cylinder is respectively provided with a feed pipe and a discharge port;
the screw assembly is arranged in the extrusion cylinder; the screw rod assembly comprises a first half screw rod, a second half screw rod and a supporting box, the supporting box is in running fit with the extruding cylinder, a driving assembly used for driving the supporting box to rotate is further arranged on the supporting frame, the first half screw rod and the second half screw rod are in sliding fit with the supporting box, a pushing piece is further arranged between the first half screw rod and the second half screw rod, the pushing piece comprises a pushing pipe, a pushing rod and an expansion rod, the expansion rod is used for being connected between the pushing rod and the first half screw rod and between the pushing rod and the second half screw rod, a first storage groove used for storing the expansion rod is further formed in the pushing rod, the expansion rod is connected with the pushing rod through a rotating shaft, sliding fit is achieved between the pushing pipe and the supporting box, one end of the pushing pipe is connected with the pushing rod, and the other end of the pushing pipe is connected with the pushing assembly.
Compared with the prior art, the invention has the beneficial effects that:
the drive assembly drives the first half screw rod and the second half screw rod of installing on supporting the box and rotate for first half screw rod and the second half screw rod produce centrifugal force, and cooperation pushing assembly is through driving the push tube, make push tube push rod to the mode of discharge gate one side motion, the extension pole will promote first half screw rod and the second half screw rod one end motion of keeping away from the push rod, thereby make first half screw rod and the expansion of second half screw rod, make and form stirring structure between first half screw rod, second half screw rod and the extension pole, and can enlarge the stirring scope, drive assembly is through driving supporting the box and last pivoted mode, can drive first half screw rod, second half screw rod and extension pole realization to the stirring of molten material, treat that molten material evenly mixes the back, push assembly will drive push tube and push rod to one side motion of keeping away from the discharge gate, make first half screw rod and second half screw rod laminating each other, and cooperation driving assembly drives the mode of supporting the continuous pivoted of box, can extrude the molten material in the section of thick bamboo through the discharge gate, the setting of screw rod assembly, it is comparatively traditional to have avoided current screw rod structure, the comparatively to realize the plastics product that the molten material is comparatively seriously influences quality of mixing.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a schematic view of the screw assembly according to the embodiment of the present invention in an expanded state.
Fig. 3 is a schematic partial structure of a pushing member according to an embodiment of the present invention.
Fig. 4 is a schematic cross-sectional view of fig. 2 at a.
Fig. 5 is an enlarged schematic view of the structure at B in fig. 2.
In the accompanying drawings: the device comprises a 1-supporting frame, a 2-driving motor, a 3-telescopic part, a 4-control switch, a 5-linkage plate, a 6-linkage part, a 7-fixing frame, an 8-guide pipe, a 9-push pipe, a 10-rotating pipe, an 11-extrusion cylinder, a 12-supporting box, a 13-feeding pipe, a 14-first half screw, a 15-second half screw, a 16-cooling box, a 17-circulating pipe, a 18-discharge hole, a 19-circulating pump, a 20-pressing block, a 21-push rod, a 22-expansion rod, a 23-water spraying block, a 24-first storage groove, a 25-rotating shaft, a 26-water spraying hole, a 27-second storage groove and a 28-eccentric rod.
Description of the embodiments
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Specific implementations of the invention are described in detail below in connection with specific embodiments.
Referring to fig. 1 to 5, a melt extruder according to an embodiment of the present invention includes:
the device comprises a support frame 1 and an extrusion barrel 11 arranged on the support frame 1, wherein a feed pipe 13 and a discharge hole 18 are respectively arranged on the extrusion barrel 11;
a screw assembly mounted within the extrusion barrel 11; the screw assembly comprises a first half screw 14, a second half screw 15 and a supporting box 12, wherein the supporting box 12 is in running fit with the extrusion barrel 11, a driving assembly used for driving the supporting box 12 to rotate is further arranged on the supporting frame 1, the first half screw 14 and the second half screw 15 are in sliding fit with the supporting box 12, a pushing piece is further arranged between the first half screw 14 and the second half screw 15, the pushing piece comprises a push tube 9, a push rod 21 and an expansion rod 22, the expansion rod 22 is used for connecting the push rod 21 with the first half screw 14 and the push rod 21 with the second half screw 15, a first storage groove 24 used for storing the expansion rod 22 is further arranged on the push rod 21, the expansion rod 22 is connected with the first half screw 14 and the second half screw 15 through a rotating shaft 25, the push tube 9 is in sliding fit with the supporting box 12, one end of the push tube 9 is connected with the push rod 21, and the other end of the push tube 9 is connected with the push rod 21.
In the embodiment of the invention, the first half screw 14 and the second half screw 15 are jointed to form a complete screw, after the first half screw 14 and the second half screw 15 are jointed to each other, the complete screw is positioned at the center of the supporting box 12, during processing, molten materials are led into the extrusion cylinder 11 through the feeding pipe 13, the driving component drives the first half screw 14 and the second half screw 15 which are arranged on the supporting box 12 to rotate, so that the first half screw 14 and the second half screw 15 generate centrifugal force, and the pushing component is matched with the pushing component, the pushing pipe 9 pushes the push rod 21 to move towards one side of the discharge hole 18, the expansion rod 22 pushes the first half screw 14 and the second half screw 15 to move towards one end far away from the push rod 21, so that the first half screw 14 and the second half screw 15 are unfolded, a stirring structure is formed between the first half screw 14, the second half screw 15 and the expansion rod 22, and a stirring range can be enlarged, the driving component can drive the first half screw 14, the second half screw 15 and the expansion rod 22 to continuously rotate in a mode, the first half screw 14 and the second half screw 15 and the expansion rod 22 to generate centrifugal force, the pushing component is matched with the pushing component to realize that the push rod 21 moves towards one side of the discharge hole 18, the molten materials are mixed evenly, the problem that the molten materials are difficult to be mixed is continuously and the extrusion material is continuously arranged at one side of the end far away from the push rod 18, and the end of the expansion rod is driven by the expansion rod 22, and the expansion component is matched with the first half screw 15, and the sealing component is driven to evenly; wherein grooves for accommodating the push rod 21 are formed in the first half screw 14 and the second half screw 15.
In one embodiment of the present invention, referring to fig. 1 and 2, the driving assembly includes a driving motor 2, a linkage member 6, and a rotating tube 10, wherein the rotating tube 10 is in a running fit with the extrusion cylinder 11, the rotating tube 10 is connected with a supporting box 12, the driving motor 2 is mounted on the supporting frame 1, the linkage member 6 is used for connecting the driving motor 2 and the rotating tube 10, and the rotating tube 10 is in a sliding fit with the pushing tube 9; wherein the linkage member 6 can adopt a combined structure of a belt wheel and a driving belt.
In this embodiment, the driving motor 2 is matched with the linkage member 6, so as to drive the rotary tube 10 to rotate, thereby driving the support box 12 connected with the rotary tube 10 to rotate, and further realizing the driving of the screw assembly; wherein the driving motor 2 can be a servo motor or a stepping motor.
In one embodiment of the present invention, referring to fig. 1 and 2, the pushing assembly includes a telescopic member 3 and a linkage plate 5, one end of the linkage plate 5 is slidably matched with the support frame 1, the other end of the linkage plate 5 is rotatably matched with the push tube 9, the telescopic member 3 is mounted on the support frame 1, and the telescopic end of the telescopic member 3 is connected with the linkage plate 5;
the telescopic piece 3 is an electric push rod.
In this embodiment, the telescopic member 3 achieves the action on the push tube 9 by driving the linkage plate 5 to slide on the support frame 1, so as to achieve the movement of the push tube 9 in the telescopic direction of the telescopic member 3, and further push the push rod 21 to move in the extrusion barrel 11.
In one embodiment of the present invention, referring to fig. 1-4, the push rod 21 has a diamond structure, and the interior of the push rod 21 is hollow;
the push rod 21 is communicated with the push tube 9, the push tube 9 is also connected with a guide tube 8, and a nozzle is arranged in the first storage groove 24;
the push pipe 9 is also provided with a water spraying block 23, the water spraying block 23 is communicated with the push pipe 9, the support box 12 is provided with a plurality of groups of water spraying holes 26, and the water spraying block 23 is provided with nozzles matched with the water spraying holes 26.
In this embodiment, the linkage plate 5 is provided with a fixing frame 7 for fixing the conduit 8, the conduit 8 is in rotary sealing connection with the push pipe 9, and the water spraying hole 26 is internally provided with a one-way valve, so that molten materials in the extrusion barrel 11 can be prevented from flowing into the supporting box 12; the two tips of the diamond-shaped structure of the push rod 21 face the first half screw rod 14 and the second half screw rod 15 respectively, so that molten materials between gaps can be extruded conveniently when the push rod 21 contacts the first half screw rod 14 and the second half screw rod 15, after the push pipe 9 pushes the water spraying block 23 to contact the water spraying hole 26, the cleaning liquid (the cleaning liquid can be water) is conveyed into the push pipe 9 by the guide pipe 8, the cleaning liquid is sprayed out through the water spraying hole 26 and the nozzles in the first storage groove 24, and meanwhile, the driving assembly drives the supporting box 12 to rotate, and therefore the inside of the extruding cylinder 11 and the cleaning of the first half screw rod 14 and the second half screw rod 15 are achieved, the inside of the extruding cylinder 11 can be kept clean conveniently, and the cleaning liquid is recycled conveniently.
In an embodiment of the present invention, referring to fig. 4, an eccentric rod 28 is further installed on the push tube 9, and a second receiving groove 27 for receiving the eccentric rod 28 is formed in the support box 12.
In this embodiment, the pushing component can realize the adjustment to the eccentric rod 28 position through the mode that drives push tube 9 motion, when eccentric rod 28 is located second and accomodates inslot 27, eccentric rod 28 follows second and accomodates inslot 27 synchronous rotation, can not produce eccentric force, when eccentric rod 28 and second accomodate inslot 27 separation, under push tube 9 pivoted condition, can produce certain eccentric force for push tube 9 drives push rod 21 and produces the vibration, and then improves first half screw rod 14, second half screw rod 15 and extension pole 22 to the stirring effect of molten material, makes the more even of molten material mixing, improves the processingquality of plastic part.
In one embodiment of the present invention, referring to fig. 1 and 2, the cooling device further comprises a cooling assembly, the cooling assembly comprises a cooling tank 16, a circulating pipe 17 and a circulating pump 19, the cooling tank 16 is installed on the extrusion barrel 11, the cooling tank 16 is near one end of the discharge port 18, the circulating pipe 17 is installed in the cooling tank 16, the circulating pump 19 is connected with the circulating pipe 17, and a control assembly for controlling the working state of the circulating pump 19 is further arranged on the pushing assembly;
the control assembly comprises a control switch 4 and a pressing block 20, wherein the control switch 4 is arranged on the support frame 1 through a vertical plate, the pressing block 20 is arranged on the linkage plate 5, the control switch 4 is a pressing type switch, and the control switch 4 is electrically connected with the circulating pump 19.
In this embodiment, after the molten materials in the extrusion barrel 11 are uniformly mixed, the telescopic piece 3 will push the linkage plate 5 to move to one side of the control switch 4, and the pressing block 20 installed on the linkage plate 5 will realize the pressing of the control switch 4, so that the circulating pump 19 is electrified, at this time, the cooling liquid will circulate in the circulating pipe 17, the cooling treatment of one end of the extrusion barrel 11 close to the discharge hole 18 can be realized, the extrusion molding of the molten materials in the discharge hole 18 is facilitated, and the production quality of plastic products is improved.
In summary, the working principle of the invention is as follows: during processing, molten materials are led into the extrusion cylinder 11 through the feeding pipe 13, the driving component drives the first half screw 14 and the second half screw 15 which are arranged on the supporting box 12 to rotate, so that the first half screw 14 and the second half screw 15 generate centrifugal force, and the driving component is matched with the pushing pipe 9, so that the pushing pipe 9 pushes the push rod 21 to move towards one side of the discharge hole 18, the expansion rod 22 pushes the first half screw 14 and the second half screw 15 to move towards one end far away from the push rod 21, so that the first half screw 14 and the second half screw 15 are unfolded, a stirring structure is formed among the first half screw 14, the second half screw 15 and the expansion rod 22, the stirring range can be enlarged, the driving component can drive the first half screw 14, the second half screw 15 and the expansion rod 22 to stir the molten materials in a continuous rotation mode by driving the supporting box 12, and after the molten materials are evenly mixed, the driving component drives the pushing pipe 9 and the push rod 21 to move towards one side far away from the discharge hole 18, so that the first half screw 14 and the second half screw 15 are mutually matched with the second half screw 15, and the supporting box 12 is matched with the driving component to drive the supporting box 12 to rotate, and the molten materials can be continuously extruded out of the extrusion cylinder 11 through the discharge hole 18;
the telescopic piece 3 realizes the action on the push pipe 9 by driving the linkage plate 5 to slide on the support frame 1, so that the push pipe 9 moves in the telescopic direction of the telescopic piece 3, and the push rod 21 is pushed to move in the extrusion barrel 11;
the two tips of the diamond-shaped structure of the push rod 21 face the first half screw rod 14 and the second half screw rod 15 respectively, so that molten materials between gaps are conveniently extruded when the push rod 21 contacts the first half screw rod 14 and the second half screw rod 15, after the push pipe 9 pushes the water spraying block 23 to contact the water spraying hole 26, the guide pipe 8 starts to convey cleaning liquid into the push pipe 9, the cleaning liquid is sprayed out through the water spraying hole 26 and the nozzles in the first storage groove 24, and meanwhile, the driving assembly drives the supporting box 12 to rotate, and further, the cleaning of the inside of the extruding cylinder 11 and the cleaning of the first half screw rod 14 and the second half screw rod 15 are realized, so that the inside of the extruding cylinder 11 can be kept clean, and the cleaning is convenient to recycle;
the pushing assembly can realize the adjustment of the position of the eccentric rod 28 by driving the pushing tube 9 to move, when the eccentric rod 28 is positioned in the second accommodating groove 27, the eccentric rod 28 synchronously rotates along with the second accommodating groove 27, no eccentric force is generated, and when the eccentric rod 28 is separated from the second accommodating groove 27, certain eccentric force is generated under the condition that the pushing tube 9 rotates, so that the pushing tube 9 drives the pushing rod 21 to vibrate, and the stirring effect of the first half screw 14, the second half screw 15 and the expansion rod 22 on molten materials is improved;
after the molten materials in the extrusion barrel 11 are uniformly mixed, the telescopic piece 3 pushes the linkage plate 5 to move towards one side of the control switch 4, the pressing block 20 arranged on the linkage plate 5 presses the control switch 4, so that the circulating pump 19 is electrified, at the moment, cooling liquid circularly flows in the circulating pipe 17, cooling treatment of one end, close to the discharge port 18, of the extrusion barrel 11 can be realized, extrusion molding of the molten materials in the discharge port 18 is facilitated, and the production quality of plastic products is improved.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (6)
1. The utility model provides a melt extruder, includes the support frame and installs the extrusion section of thick bamboo on the support frame, be provided with inlet pipe and discharge gate on the extrusion section of thick bamboo respectively, its characterized in that still includes:
the screw assembly is arranged in the extrusion cylinder; the screw rod assembly comprises a first half screw rod, a second half screw rod and a supporting box, the supporting box is in running fit with the extrusion barrel, a driving assembly used for driving the supporting box to rotate is further arranged on the supporting frame, the first half screw rod and the second half screw rod are in sliding fit with the supporting box, a pushing piece is further arranged between the first half screw rod and the second half screw rod, the pushing piece comprises a push pipe, a push rod and an expansion rod, the expansion rod is used for being connected between the push rod and the first half screw rod and between the push rod and the second half screw rod, a first storage groove used for storing the expansion rod is further formed in the push rod, the expansion rod is connected with the first half screw rod and the second half screw rod through rotating shafts, the push pipe is in sliding fit with the supporting box, one end of the push pipe is connected with the push rod, and the other end of the push pipe is connected with the pushing assembly;
the driving assembly comprises a driving motor, a linkage piece and a rotating pipe, wherein the rotating pipe is in running fit with the extrusion cylinder, the rotating pipe is connected with the supporting box, the driving motor is arranged on the supporting frame, the linkage piece is used for connecting the driving motor with the rotating pipe, and the rotating pipe is in sliding fit with the pushing pipe;
the pushing assembly comprises a telescopic piece and a linkage plate, one end of the linkage plate is in sliding fit with the support frame, the other end of the linkage plate is in running fit with the push pipe, the telescopic piece is arranged on the support frame, and the telescopic end of the telescopic piece is connected with the linkage plate;
the telescopic piece is an electric push rod.
2. The melt extruder of claim 1 wherein the ram is diamond shaped and the ram is hollow.
3. The melt extruder of claim 1, wherein the push rod is in communication with a push tube, and the push tube is further connected with a conduit, and a nozzle is disposed in the first receiving groove;
the push pipe is also provided with a water spraying block which is communicated with the push pipe, the support box is provided with a plurality of groups of water spraying holes, and the water spraying block is provided with a nozzle matched with the water spraying holes.
4. The melt extruder of claim 1, wherein the push tube is further provided with an eccentric rod, and the support box is provided with a second accommodating groove for accommodating the eccentric rod.
5. The melt extruder of claim 1, further comprising a cooling assembly comprising a cooling tank, a circulation pipe and a circulation pump, wherein the cooling tank is mounted on the extrusion barrel, the cooling tank is near one end of the discharge port, the circulation pipe is mounted in the cooling tank, the circulation pump is connected with the circulation pipe, and the pushing assembly is further provided with a control assembly for controlling the working state of the circulation pump.
6. The melt extruder of claim 5, wherein the control assembly comprises a control switch and a pressing block, the control switch is mounted on the support frame through a vertical plate, the pressing block is mounted on the linkage plate, the control switch is a push switch, and the control switch is electrically connected with the circulating pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310089075.0A CN115923084B (en) | 2023-02-09 | 2023-02-09 | Melt extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310089075.0A CN115923084B (en) | 2023-02-09 | 2023-02-09 | Melt extruder |
Publications (2)
| Publication Number | Publication Date |
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| CN115923084A CN115923084A (en) | 2023-04-07 |
| CN115923084B true CN115923084B (en) | 2023-05-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202310089075.0A Active CN115923084B (en) | 2023-02-09 | 2023-02-09 | Melt extruder |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009255393A (en) * | 2008-04-16 | 2009-11-05 | Minoru Kasei Kk | Extruder of tubular plastic |
| CN205767387U (en) * | 2016-05-26 | 2016-12-07 | 长兴盘峰塑料制品厂（普通合伙） | A kind of double screw extruder |
| CN111497188A (en) * | 2020-04-30 | 2020-08-07 | 桂林理工大学 | Plasticizing device of rubber extruder |
| CN111546602A (en) * | 2020-07-02 | 2020-08-18 | 河南邦特威机电设备有限公司 | Injection molding particle extruder capable of improving plasticizing degree |
| CN216299946U (en) * | 2021-10-07 | 2022-04-15 | 傅仁义 | Extrusion screw open-close type self-cleaning injection molding machine |
| CN218366390U (en) * | 2022-07-13 | 2023-01-24 | 四川溢彩塑胶制品有限公司 | Plastic production is with extruder of convenient clearance |
-
2023
- 2023-02-09 CN CN202310089075.0A patent/CN115923084B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009255393A (en) * | 2008-04-16 | 2009-11-05 | Minoru Kasei Kk | Extruder of tubular plastic |
| CN205767387U (en) * | 2016-05-26 | 2016-12-07 | 长兴盘峰塑料制品厂（普通合伙） | A kind of double screw extruder |
| CN111497188A (en) * | 2020-04-30 | 2020-08-07 | 桂林理工大学 | Plasticizing device of rubber extruder |
| CN111546602A (en) * | 2020-07-02 | 2020-08-18 | 河南邦特威机电设备有限公司 | Injection molding particle extruder capable of improving plasticizing degree |
| CN216299946U (en) * | 2021-10-07 | 2022-04-15 | 傅仁义 | Extrusion screw open-close type self-cleaning injection molding machine |
| CN218366390U (en) * | 2022-07-13 | 2023-01-24 | 四川溢彩塑胶制品有限公司 | Plastic production is with extruder of convenient clearance |
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| CN115923084A (en) | 2023-04-07 |
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