CN208164294U - A kind of degradable film bolt special - Google Patents
A kind of degradable film bolt special Download PDFInfo
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- CN208164294U CN208164294U CN201820741856.8U CN201820741856U CN208164294U CN 208164294 U CN208164294 U CN 208164294U CN 201820741856 U CN201820741856 U CN 201820741856U CN 208164294 U CN208164294 U CN 208164294U
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- thread segment
- groove depth
- spiral groove
- thread
- degradable film
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Abstract
The utility model discloses a kind of degradable film bolt specials, successively include connection part, charging portion, fusing department and metering homogenizing portion, connection part includes keyway and reverse thread section；Charging portion includes equidistant the first thread segment for waiting depth；Fusing department includes the second thread segment of equidistant gradual change, and the spiral groove depth of the second thread segment is not more than the spiral groove depth of the first thread segment, and is gradually reduced along the spiral groove depth of the second thread segment of direction far from charging portion；Metering homogenizing portion includes the equidistant third thread segment and mixing section for waiting depth, the spiral groove depth of third thread segment is not more than the spiral groove depth of the second thread segment, mixing section includes several deflectors of the center post rod coaxially to connect with third thread segment and center post rod along week setting, and water conservancy diversion direction is parallel with center post rod axis.The utility model meets the requirement of degradable film material to greatest extent, can be improved the machinery and processing performance, light transmittance and mist degree of produced degradable film, while can reduce film production energy consumption.
Description
Technical field
The utility model belongs to thin film fabrication techniques field, in particular to a kind of degradable film bolt special.
Background technique
Degradative plastics industry faces China's agriculture, rural areas and farmers, the energy and environmentally friendly three big themes directly.Degradative plastics currently on the market is thin
There are many membrane product type, but every kind of degradation plastic film only has characteristic outstanding, comprehensive performance such as machine in one aspect
There is also such or such deficiencies for tool performance, processing performance, light transmittance etc., such as：
(1) existing degradable films are thicker, generally higher than 10um；
(2) existing degradable films elongation is lower, unidirectionally less than 400%；
(3) existing degradable films Blown-film line line speed is also relatively low, is 20-40m/min (rice is per minute)；
(4) existing degradable films mist degree is relatively high, reaches 18.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of degradable film bolt special, can expire to greatest extent
The production requirement of sufficient degradable film improves film production quality.
In order to solve the above technical problems, technical solution used by the utility model is：
A kind of degradable film bolt special successively includes connection part, charging portion, fusing department and measures homogenizing portion, described
Connection part includes keyway and reverse thread section；The charging portion includes equidistant the first thread segment for waiting depth；The fusing department includes
Second thread segment of equidistant gradual change, second thread segment connects with first thread segment and outer diameter and first thread segment
Identical, the spiral groove depth of second thread segment is not more than the spiral groove depth of first thread segment, and along far from the charging
The spiral groove depth of second thread segment described in the direction in portion is gradually reduced；The metering homogenizing portion includes the equidistant third screw thread for waiting depth
Section and mixing section, and second thread segment connects and outer diameter is identical as second thread segment for the third thread segment, described
The spiral groove depth of third thread segment is not more than the spiral groove depth of second thread segment, and the mixing section includes and the third spiral shell
Several deflectors that the center post rod and the center post rod that line section coaxially connects are arranged along week, water conservancy diversion direction and the newel
Rod axis is parallel.
In the above-mentioned technical solutions, keyway is used to transmit torque, and reverse thread section is used to that material is pushed to advance, and prevents material
It generates and moves back after addition；The spiral groove depth of first thread segment is larger, and bottom diameter is deeper, convenient for increasing feeding quantity；With turning for screw rod
Dynamic, material is transported to fusing department；Material during the motion, i.e., because friction generate heat and barrel heater conduction heat due to
It is heated；Second thread segment outer diameter of fusing department is constant, spiral groove depth from depth to shallow, bottom diameter from depth to shallow so that processing and manufacturing
It is easy, while material and machine barrel contact area are big, heat-transfer effect is good, so that material is when fusing department is run, material temperature is easier to
More than its fusing point, material is gradually molten to viscosity flow shape by pellet solid-like；It can be to material by the spiral groove depth variation of fusing department
The characteristics of material plays compression, and preferably volume becomes smaller after adaptation material molten, while convenient for coming back the gas in material
Charging portion guarantees that material sufficiently melts, and is not in not molten and superfusion phenomenon；The spiral groove depth and bottom diameter of third thread segment compared with
Shallowly, further the temperature of molten material, pressure etc. are homogenized, barrier screen is not designed in this part, prevents shearing from causing
The fracture of material molecule chain, reduces the mechanical performance of film article；Melted material is delivered to mixing section by third thread segment, in water conservancy diversion
Under the action of plate, further it is homogenized melting material simultaneously, material flow is transitioned into direct current shape and is uniformly delivered to by contorted
Die head.
Changed by above-mentioned screw channel, the shearing force in production process can be reduced, it is intermolecular not destroy degradable material
Connective stability solves the problems, such as that degradable material is sheared intolerant to plasticizing, is therefore particularly suitable for the production of degradable material film.
From the foregoing, it will be observed that above-mentioned technical proposal can be improved film production quality and efficiency, film production energy consumption is reduced.
As the further improvement of technical solutions of the utility model, the length in the charging portion is 500 to 700mm, described
The spiral groove depth of first thread segment is 5 to 15mm, and the outer diameter of first thread segment is 55 to 75mm, convenient for increasing feeding quantity.
As the further improvement of technical solutions of the utility model, the length of the fusing department is 650 to 800mm, is guaranteed
Material sufficiently can be heated and be melted in this part, and material temperature is easier to be more than its fusing point, so that material is by pellet solid
Shape is gradually molten to viscosity flow shape.
As the further improvement of technical solutions of the utility model, the length in the metering homogenizing portion is 500 to 700mm,
The spiral groove depth of the third thread segment is 3 to 10mm, guarantees the abundant homogenizing of temperature, pressure of molten material etc..Institute
The length for stating mixing section is 100 to 200mm, guarantees that material flow can be conveyed by contorted good transition to direct current shape and uniformly
To die head.
As the further improvement of technical solutions of the utility model, the inside screw offers blind hole along axis, for
Cooling circulating water is injected, to prevent material from crossing thermal degradation.
To sum up, the utility model meets the requirement of degradable film material to greatest extent, can be improved produced drop
Degrading film machinery, processing performance and light transmittance and mist degree require to meet slimming, improve film quality, while can
Reduce film production energy consumption.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of specific embodiment of the present invention.
Fig. 2 be in Fig. 1 mixing section along perpendicular to center post rod axis schematic cross-section.
In figure：1, connection part；1.1, keyway；1.2, reverse thread section；2, charging portion；3, fusing department；4, measure homogenizing portion；
4.1, third thread segment；4.2, mixing section；4.3, deflector；5, blind hole.
Specific embodiment
As shown in Figure 1, the degradable film bolt special from one end successively include connection part 1, charging portion 2, fusing department 3 with
And metering homogenizing portion 4, connection part 1 include keyway 1.1 and reverse thread section 1.2, wherein keyway 1.1 is matched with key, for passing
Dynamic torque is passed, reverse thread section 1.2 is used to that material is pushed to advance, generates and move back after preventing material to be added；Charging portion 2 include etc.
Away from equal the first deep thread segment, i.e., the spiral groove depth of entire first thread segment is constant, reverse thread section 1.2 and the first thread segment phase
Neighbour, reverse thread section 1.2 is between charging portion 2 and keyway 1.1；Second thread segment of the fusing department 3 including equidistant gradual change, second
Thread segment integrally connects with the first thread segment and outer diameter is constant, i.e., the second thread segment is identical as the outer diameter of the first thread segment, and second
The spiral groove depth of thread segment is not more than the spiral groove depth of the first thread segment, and along the second thread segment of direction far from charging portion 2
Spiral groove depth is gradually reduced；Measuring homogenizing portion 4 includes the equidistant third thread segment 4.1 and mixing section 4.2 for waiting depth, third thread segment
4.1 integrally connect and outer diameter is constant with the second thread segment, i.e., third thread segment 4.1 is identical as the outer diameter of the second thread segment, entirely
The spiral groove depth of third thread segment 4.1 is constant and is not more than the spiral groove depth of the second thread segment, and mixing section 4.2 includes and third spiral shell
The center post rod and center post rod that line section 4.1 coaxially connects (are arranged three along several deflectors 4.3 of week setting in present embodiment
A deflector 4.3), along several channels are provided with week on each deflector 4.3, the channel one on each deflector 4.3 is a pair of
It answers, as depicted in figs. 1 and 2.The water conservancy diversion direction of deflector 4.3 is parallel with center post rod axis.
Wherein, the length in charging portion 2 is 500 to 700mm, and the spiral groove depth of the first thread segment is 5 to 15mm, the first screw thread
The outer diameter of section is 55 to 75mm；The length of fusing department 3 is 650 to 800mm；The length for measuring homogenizing portion 4 is 500 to 700mm, is mixed
The length for refining section 4.2 is 100 to 200mm, and the spiral groove depth of third thread segment 4.1 is 3 to 10mm.
Using the degradable film bolt special carry out film production when, the spiral groove depth of the first thread segment is larger, bottom diameter compared with
It is deep, convenient for increasing feeding quantity；With the rotation of screw rod, material is transported to fusing department 3；Material during the motion, i.e., because rubbing
It wipes the heat of the heat generated and barrel heater conduction and is heated；Second thread segment outer diameter of fusing department 3 is constant, spiral groove depth by
It shoaling deeply, from depth to shallow, so that processing and manufacturing is easy, while material and machine barrel contact area are big, and heat-transfer effect is good for bottom diameter, thus
When fusing department 3 is run, material temperature is easier to be more than its fusing point material, and material is gradually molten to viscosity flow shape by pellet solid-like；
Compression can be played to material by the spiral groove depth variation of fusing department 3, volume becomes smaller after preferably adapting to material molten
The characteristics of, while convenient for the gas in material is come back charging portion 2, guarantee that material sufficiently melts, is not in not molten and superfusion
Phenomenon；It follows that fusing department 3 is a pith, the variation of screw channel, bottom diameter etc. plays the role of vital；
The spiral groove depth and bottom diameter of third thread segment 4.1 are shallower, are further homogenized the temperature of molten material, pressure etc., this portion
Divide and do not design barrier screen, prevented shearing from material molecule chain being caused to be broken, and reduced the mechanical performance of film article；Melted material
Mixing section 4.2 is delivered to by third thread segment 4.1, under the action of deflector 4.3, is further homogenized melting material simultaneously, it will
Material flow is transitioned into direct current shape and is uniformly delivered to die head by contorted.
Changed by above-mentioned screw channel, the shearing force in production process can be reduced, it is intermolecular not destroy degradable material
Connective stability solves the problems, such as that degradable material is sheared intolerant to plasticizing, is therefore particularly suitable for the production of degradable material film.
(i.e. inside the center column of screw rod) offers blind hole 5 along axis inside the degradable film bolt special, injects cold
But recirculated water, to prevent material from crossing thermal degradation during by screw rod transmission.
The degradable film bolt special is suitable for the life of various degradable films (such as degradable film of PPC, PPAT material)
It produces, the thickness of the film product for the film blow blowing unit institute output being assembled into using the degradable film bolt special can be by existing
10um be reduced to 4 to 6um；Film elongation rate is increased to 600% to 700% by existing 400%；Film Haze then can be low
In 15, it can achieve 12 to 14；The quality and production efficiency of film are improved, while reducing film production energy consumption.
Such as the film of PPAT+PLA mixed materials, the film that is assembled into using the degradable film bolt special
Blown-film line can be reduced to compared to other film productions machinery, the thickness of the film product of institute's output by existing 10um
4um, elongation improve 50%, and mist degree can be down to 13 by existing 18, and line speed can be increased to by existing 25m
50m or more, and can reach 70m, realize that film is not likely to produce fracture while speed of production is promoted.
The utility model is further illustrated above in conjunction with the drawings and specific embodiments, but the utility model is simultaneously
It is not limited to above embodiment, within the knowledge of one of ordinary skill in the art, this can also not departed from
Various changes can be made under the premise of utility model objective.
Claims (6)
1. a kind of degradable film bolt special, it is characterised in that：Successively include connection part (1), charging portion (2), fusing department (3) with
And metering homogenizing portion (4), articulated connection (1) includes keyway (1.1) and reverse thread section (1.2)；The charging portion (2) includes
It is equidistant to wait the first deep thread segment；The fusing department (3) includes the second thread segment of equidistant gradual change, second thread segment and institute
State that the first thread segment connects and outer diameter is identical as first thread segment, the spiral groove depth of second thread segment is no more than described
The spiral groove depth of first thread segment, and gradually along the spiral groove depth of the second thread segment described in the direction far from the charging portion (2)
Reduce；Metering homogenizing portion (4) includes the equidistant third thread segment (4.1) for waiting depth and mixing section (4.2), the third screw thread
And second thread segment connects and outer diameter is identical as second thread segment for section (4.1), the spiral shell of the third thread segment (4.1)
Groove depth is not more than the spiral groove depth of second thread segment, and the mixing section (4.2) includes and the third thread segment (4.1)
Several deflectors (4.3) that the center post rod coaxially to connect and the center post rod are arranged along week, water conservancy diversion direction and the center
Mast axis is parallel.
2. degradable film bolt special according to claim 1, it is characterised in that：The length of the charging portion (2) is 500
To 700mm, the spiral groove depth of first thread segment is 5 to 15mm.
3. degradable film bolt special according to claim 1 or 2, it is characterised in that：The outer diameter of first thread segment
It is 55 to 75mm.
4. degradable film bolt special according to claim 1, it is characterised in that：The length of the fusing department (3) is 650
To 800mm.
5. degradable film bolt special according to claim 1, it is characterised in that：The length of metering homogenizing portion (4)
It is 500 to 700mm, the length of the mixing section (4.2) is 100 to 200mm, the spiral groove depth of the third thread segment (4.1)
It is 3 to 10mm.
6. according to claim 1, degradable film bolt special described in any one of 2,4,5, it is characterised in that：In the screw rod
Portion offers blind hole (5) along axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820741856.8U CN208164294U (en) | 2018-05-18 | 2018-05-18 | A kind of degradable film bolt special |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820741856.8U CN208164294U (en) | 2018-05-18 | 2018-05-18 | A kind of degradable film bolt special |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208164294U true CN208164294U (en) | 2018-11-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820741856.8U Active CN208164294U (en) | 2018-05-18 | 2018-05-18 | A kind of degradable film bolt special |
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| Country | Link |
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| CN (1) | CN208164294U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108422649A (en) * | 2018-05-18 | 2018-08-21 | 山东莱芜新甫冠龙塑料机械有限公司 | A kind of degradable film bolt special |
-
2018
- 2018-05-18 CN CN201820741856.8U patent/CN208164294U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108422649A (en) * | 2018-05-18 | 2018-08-21 | 山东莱芜新甫冠龙塑料机械有限公司 | A kind of degradable film bolt special |
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