CN217226660U - Film blowing machine rotary die head suitable for starch biodegradable material - Google Patents
Film blowing machine rotary die head suitable for starch biodegradable material Download PDFInfo
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- CN217226660U CN217226660U CN202220048416.0U CN202220048416U CN217226660U CN 217226660 U CN217226660 U CN 217226660U CN 202220048416 U CN202220048416 U CN 202220048416U CN 217226660 U CN217226660 U CN 217226660U
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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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W90/00—Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas [GHG] emissions mitigation
- Y02W90/10—Bio-packaging, e.g. packing containers made from renewable resources or bio-plastics
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Abstract
The utility model discloses a be suitable for inflation film manufacturing machine rotary die head of starch biodegradable material, including outer die sleeve, spiral mandrel and driving motor, be equipped with the rotatory mandrel of first rotatory mandrel and second in the outer die sleeve, and the lower extreme and the outer die sleeve fixed connection of first rotatory mandrel, be equipped with sealing device between the rotatory mandrel of first rotatory mandrel and second, a plurality of tooth's sockets have been seted up to equal circumference on the inner wall of the rotatory mandrel of first rotatory mandrel and second, first rotatory mandrel inner gearing has first gear, install the second gear in the rotatory mandrel of second. Has the advantages that: the sealing device can reduce the friction force between the first rotating core mould and the second rotating core mould on the premise of not changing the diameter of the flow channel, and ensure the sealing property between the first rotating core mould and the second rotating core mould, and the second rotating core mould and the first rotating core mould have opposite rotating directions, so that the uniformity of material mixing can be further improved, and the internal stress of the material can be reduced.
Description
Technical Field
The utility model relates to a film blowing technical field especially relates to a be suitable for inflation film manufacturing machine rotary die head of starch biodegradable material.
Background
Starch biodegradable material has the characteristics of high viscosity, mobility is poor, shear stress increases in the blown film process, traditional blown film die head is difficult to make its accurate shaping, the pressure when having proposed one kind in the patent document with application number CN201921262178.8 and can releasing plastify material feeding makes the material intensive mixing, the blown film machine rotary die head of accurate shaping, but foretell blown film machine rotary die head structure is comparatively simple and crude, only once establish the process of pressure and release pressure, the mixing effect is relatively poor, and the material can produce a large amount of heats because of frictional force in mixing process, it is difficult to carry out even cooling to the material inside only to rely on the cooling water course of periphery, for this reason, we propose a blown film machine rotary die head who is suitable for starch biodegradable material.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving among the prior art starch biodegradable material viscosity height, mobility poor, be difficult to the misce bene, strengthen at blown film in-process shear stress, the heat of production is many, only relies on the cooling water course of periphery to be difficult to the problem of carrying out evenly cooling to the material is inside, and the inflation film manufacturing machine rotary die who is suitable for starch biodegradable material that provides.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a be suitable for inflation film manufacturing machine rotary die head of starch biodegradable material, includes outer die sleeve, spiral mandrel and driving motor, be equipped with first rotatory mandrel and the rotatory mandrel of second in the outer die sleeve, and the lower extreme and the outer die sleeve fixed connection of first rotatory mandrel, be equipped with sealing device between the rotatory mandrel of first rotatory mandrel and second, still be equipped with in the outer die sleeve in coordination with pressure device, driving motor's output shaft fixedly connected with transmission shaft.
Further, a feed inlet is fixedly formed in the outer die sleeve, a buffer groove is formed between the outer die sleeve and the first rotary core die, the feed inlet is communicated with the buffer groove, a cooling channel is spirally formed in the outer die sleeve, and the cooling channel is coaxial with the first rotary core die.
Further, a flow passage is formed between the outer die sleeve and the spiral core die, between the first rotary core die and between the outer die sleeve and the second rotary core die, and the flow passage is communicated with the buffer groove.
A plurality of tooth grooves are circumferentially formed in the inner walls of the first rotating core die and the second rotating core die, a first gear is meshed in the first rotating core die, a second gear is mounted in the second rotating core die, a plurality of third gears are symmetrically meshed between the second gear and the first rotating core die, and the transmission shaft is in interference fit with the first gear and the second gear.
Further, the cooperative pressurizing device comprises an annular pressurizing pipe arranged in the outer die sleeve, the distance between the outer side wall of the annular pressurizing pipe and the spiral core die is smaller than the distance between the inner side wall of the outer die sleeve and the spiral core die, and the annular pressurizing pipe is communicated with a liquid inlet pipe and a liquid outlet pipe in a sealing mode.
Further, sealing device includes annular seal piece, first adapter and second adapter, first adapter links to each other with the one end of first gear is fixed, the one end fixed connection of second adapter and second gear, equal circumference is provided with a plurality of balls between first adapter and second adapter and the annular seal piece.
Furthermore, a sealing bearing is hermetically arranged between the second rotary core mold and the spiral core mold, and one end of the transmission shaft, which is far away from the second rotary core mold, is fixedly connected with the spiral core mold.
The utility model has the advantages of it is following: the sealing device can reduce the friction force between the first rotating core mould and the second rotating core mould on the premise of not changing the diameter of the flow channel, and ensure the sealing property between the first rotating core mould and the second rotating core mould, and the second rotating core mould and the first rotating core mould have opposite rotating directions, so that the uniformity of material mixing can be further improved, and the internal stress of the material can be reduced; when the material flows through the annular pressurizing pipe, the contact area between the material and the annular pressurizing pipe is relatively increased, so that the temperature of the material can be quickly regulated and controlled, and the temperature of the material before extrusion is in an optimal temperature range; by establishing pressure and releasing pressure twice, the material can have more uniform temperature, pressure and flow rate, so as to improve the film forming quality.
Drawings
FIG. 1 is a schematic structural view of a rotary die head of a film blowing machine suitable for starch biodegradable materials, which is provided by the present invention;
FIG. 2 is a schematic structural view of an annular sealing block part in a rotary die head of a film blowing machine suitable for starch biodegradable materials, which is provided by the utility model;
fig. 3 is a top view of the second gear and the third gear in the rotary die head of the film blowing machine suitable for starch biodegradable materials according to the present invention.
In the figure: the device comprises an outer die sleeve 1, a flow channel 2, a spiral core die 3, a liquid inlet pipe 4, a liquid outlet pipe 5, a sealing bearing 6, a cooling channel 7, a buffer groove 8, an annular sealing block 9, a first rotary core die 10, a driving motor 11, a transmission shaft 12, a first gear 13, a feed inlet 14, a second gear 15, an annular pressurizing pipe 16, a second rotary core die 17, a third gear 18, balls 19, a second adapter 20 and a first adapter 21.
Detailed Description
Referring to fig. 1-3, a film blowing machine rotary die head suitable for starch biodegradable materials comprises an outer die sleeve 1, a spiral core die 3 and a driving motor 11, wherein a first rotary core die 10 and a second rotary core die 17 are arranged in the outer die sleeve 1, the lower end of the first rotary core die 10 is fixedly connected with the outer die sleeve 1, a sealing device is arranged between the first rotary core die 10 and the second rotary core die 17, a plurality of tooth grooves are circumferentially arranged on the inner walls of the first rotary core die 10 and the second rotary core die 17, the tooth grooves are used for being meshed with a first gear 13 or a third gear 18, the first gear 13 is internally meshed with the first rotary core die 10, the second gear 15 is arranged in the second rotary core die 17, a plurality of third gears 18 are symmetrically meshed between the second gear 15 and the first rotary core die 10, a transmission shaft 12 is fixedly connected with an output shaft of the driving motor 11, and the transmission shaft 12 is connected with the first gear 13, The second gears 15 are all in interference fit so that the transmission shaft 12 can drive the first rotary core mould 10 or the second rotary core mould 17 to rotate, the rotation directions of the first rotary core mould 10 and the second rotary core mould 17 are opposite, and a cooperative pressurizing device is also arranged in the outer mould sleeve 1.
A feed inlet 14 is fixedly formed in the outer die sleeve 1, a buffer groove 8 is formed between the outer die sleeve 1 and the first rotary core die 10, the feed inlet 14 is communicated with the buffer groove 8, the buffer groove 8 releases pressure during material feeding to enable the material to reach a free and uniform state, a cooling channel 7 is spirally arranged in the outer die sleeve 1, the cooling channel 7 is coaxial with the first rotary core die 10, and as shown in fig. 1, cooling liquid in the cooling channel 7 can flow circularly through an external pressurizing device and a temperature adjusting device (the pressurizing device and the temperature adjusting device are in the prior art and not shown in the figure), so that the problem of temperature rise of the material caused by friction is solved.
A flow channel 2 is formed between the outer die sleeve 1 and the spiral core die 3, the first rotary core die 10 and the second rotary core die 17, the flow channel 2 is communicated with the buffer groove 8, and the material moves outwards through the flow channel 2 and is finally discharged from the end part of the spiral core die 3, so that the extrusion film blowing molding is realized.
The cooperative pressurizing device comprises an annular pressurizing pipe 16 arranged in the outer die sleeve 1, the distance between the outer side wall of the annular pressurizing pipe 16 and the spiral core die 3 is smaller than the distance between the inner side wall of the outer die sleeve 1 and the spiral core die 3, namely, the distance is narrowed through a flow passage 2 at the annular pressurizing pipe 16, and the annular pressurizing pipe 16 is in sealed communication with a liquid inlet pipe 4 and a liquid outlet pipe 5.
The sealing device comprises an annular sealing block 9, a first adapter 21 and a second adapter 20, wherein the first adapter 21 is fixedly connected with one end of a first gear 13, the second adapter 20 is fixedly connected with one end of a second gear 15, a plurality of balls 19 are circumferentially arranged between the first adapter 21 and the annular sealing block 9 as well as between the second adapter 20 and the annular sealing block, and the sealing device is arranged to reduce the friction force between the first rotating core mould 10 and the second rotating core mould 17 and ensure the sealing performance between the first rotating core mould 10 and the second rotating core mould 17 on the premise of not changing the diameter of the flow channel 2.
A sealing bearing 6 is hermetically arranged between the second rotary core mould 17 and the spiral core mould 3, and one end of the transmission shaft 12 far away from the second rotary core mould 17 is fixedly connected with the spiral core mould 3.
After the starch biodegradable material is preplasticized by a screw extruder, the material enters the buffer tank 8 from the feed inlet 14, the feeding pressure is released, so that the material reaches a free and uniform state, and then the material flows into the runner 2 and moves towards the spiral core mold 3;
in the material flowing process, cooling liquid circularly flows in the cooling channel 7 all the time to reduce the temperature of the material, and the main purpose is to transfer heat generated by friction outwards to prevent the material from being burnt and denatured, thereby maintaining the stable quality of the material;
the driving motor 11 drives the first gear 13 and the second gear 15 to rotate through the transmission shaft 12, so that the first rotating core mold 10 and the second rotating core mold 17 synchronously rotate to stir and mix the materials, and uneven material flow caused by excessive viscosity of the starch biodegradation material is avoided;
when the material flows through the annular pressurizing pipe 16, the flow channel 2 for the material to pass through is narrowed, so that the contact area between the material and the annular pressurizing pipe 16 is relatively increased, at the moment, liquid at a certain temperature enters the annular pressurizing pipe 16 from the liquid inlet pipe 4 and then is discharged out of the annular pressurizing pipe 16 from the liquid outlet pipe 5, the temperature of the material can be quickly regulated, and the temperature of the material before extrusion is in an optimal temperature range;
after the material passes through the annular pressurizing pipe 16, the diameter of the flow channel 2 returns to normal, the material releases the pressure again, and the material can have more uniform temperature, pressure and flow velocity by establishing and releasing the pressure for the second time, so that the film forming quality is improved.
Claims (7)
1. The utility model provides a be suitable for inflation film manufacturing machine rotary die head of starch biodegradable material, includes outer die sleeve (1), spiral mandrel (3) and driving motor (11), its characterized in that, be equipped with first rotatory mandrel (10) and second rotatory mandrel (17) in outer die sleeve (1), and the lower extreme and outer die sleeve (1) fixed connection of first rotatory mandrel (10), be equipped with sealing device between first rotatory mandrel (10) and second rotatory mandrel (17), still be equipped with pressure device in coordination in outer die sleeve (1), the output shaft fixedly connected with transmission shaft (12) of driving motor (11).
2. The film blowing machine rotary die head suitable for the starch biodegradable materials according to claim 1, characterized in that a feed inlet (14) is fixedly arranged on the outer die sleeve (1), a buffer groove (8) is arranged between the outer die sleeve (1) and the first rotary core die (10), the feed inlet (14) is communicated with the buffer groove (8), a cooling channel (7) is spirally arranged in the outer die sleeve (1), and the cooling channel (7) is coaxial with the first rotary core die (10).
3. The rotary die head of the film blowing machine suitable for the starch biodegradable materials is characterized in that a flow channel (2) is formed between the outer die sleeve (1) and the spiral core die (3), the first rotary core die (10) and the second rotary core die (17), and the flow channel (2) is communicated with the buffer groove (8).
4. The rotary die head of the film blowing machine suitable for the starch biodegradable materials according to claim 1, wherein a plurality of tooth grooves are circumferentially formed on the inner walls of the first rotary core die (10) and the second rotary core die (17), a first gear (13) is engaged in the first rotary core die (10), a second gear (15) is installed in the second rotary core die (17), a plurality of third gears (18) are symmetrically engaged between the second gear (15) and the first rotary core die (10), and the transmission shaft (12) is in interference fit with the first gear (13) and the second gear (15).
5. The rotary die head of the film blowing machine suitable for the starch biodegradable materials, according to the claim 1, characterized in that the cooperative pressurizing device comprises an annular pressurizing pipe (16) installed in the outer die sleeve (1), the distance between the outer side wall of the annular pressurizing pipe (16) and the spiral core die (3) is smaller than the distance between the inner side wall of the outer die sleeve (1) and the spiral core die (3), and the annular pressurizing pipe (16) is in sealed communication with the liquid inlet pipe (4) and the liquid outlet pipe (5).
6. The rotary die head of the film blowing machine suitable for the starch biodegradable materials, according to the claim 4, is characterized in that the sealing device comprises an annular sealing block (9), a first adapter (21) and a second adapter (20), the first adapter (21) is fixedly connected with one end of the first gear (13), the second adapter (20) is fixedly connected with one end of the second gear (15), and a plurality of balls (19) are circumferentially arranged between the first adapter (21) and the annular sealing block (9) and between the second adapter (20) and the annular sealing block (9).
7. The rotary die head of the film blowing machine suitable for the starch biodegradable materials is characterized in that a sealing bearing (6) is hermetically arranged between the second rotary core die (17) and the spiral core die (3), and one end, far away from the second rotary core die (17), of the transmission shaft (12) is fixedly connected with the spiral core die (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220048416.0U CN217226660U (en) | 2022-01-10 | 2022-01-10 | Film blowing machine rotary die head suitable for starch biodegradable material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220048416.0U CN217226660U (en) | 2022-01-10 | 2022-01-10 | Film blowing machine rotary die head suitable for starch biodegradable material |
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| Publication Number | Publication Date |
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| CN217226660U true CN217226660U (en) | 2022-08-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220048416.0U Active CN217226660U (en) | 2022-01-10 | 2022-01-10 | Film blowing machine rotary die head suitable for starch biodegradable material |
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| CN (1) | CN217226660U (en) |
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- 2022-01-10 CN CN202220048416.0U patent/CN217226660U/en active Active
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