CN106273072A - The breaking method of a kind of prepreg tape waste material and the device of use - Google Patents
The breaking method of a kind of prepreg tape waste material and the device of use Download PDFInfo
- Publication number
- CN106273072A CN106273072A CN201510323017.5A CN201510323017A CN106273072A CN 106273072 A CN106273072 A CN 106273072A CN 201510323017 A CN201510323017 A CN 201510323017A CN 106273072 A CN106273072 A CN 106273072A
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- China
- Prior art keywords
- prepreg tape
- waste material
- guide roller
- tape waste
- cutting
- Prior art date
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Classifications
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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
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/52—Mechanical processing of waste for the recovery of materials, e.g. crushing, shredding, separation or disassembly
-
- 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
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
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- Reinforced Plastic Materials (AREA)
Abstract
The invention discloses the breaking method of a kind of prepreg tape waste material, comprise the following steps: first prepreg tape waste material is cut into band, then band is ground into prepreg tape particle.The invention also discloses the device that the breaking method of a kind of above-mentioned prepreg tape waste material is used, including cutting unit and pulverizing unit；Described unit of cutting is the device cut for prepreg tape waste material, and described pulverizing unit is for pulverizing from the device cutting unit band out.Described unit of cutting includes unreeling roll shaft, front pilot unit, cutting device, rear pilot unit and wrap-up, and said modules is sequentially connected with.Described pulverizing unit includes feeding mouth, cutting mechanism, motor and discharging opening；Described feeding mouth, cutting mechanism, motor and discharging opening are sequentially connected with from top to bottom.The present invention can prepare the prepreg tape waste material particle with certain physical property and shape efficiently while realizing prepreg tape waste recovery, and does not produce second time public hazards.
Description
Technical field
The invention belongs to composite waste recovery reutilization technology field, relate to the breaking method of a kind of waste material and the device of use.
Background technology
Continuous fiber reinforced thermoplastic resin base prepreg tape is to be formed as matrix as reinforcement and thermoplastic resin by continuous fiber
Composite, as continuous glass fibre strengthen polypropylene prepreg tape, continuous carbon fibre strengthen polyamide prepreg tape etc..Even
Continuous fiber-reinforced thermoplastic resin base prepreg tape itself has preferable mechanical performance, and the prepreg tape waste material produced in production process is same
Sample also has preferable mechanical performance, and therefore prepreg tape waste material also has good application potential.Prepreg tape waste material is due to size not
One, wellability is poor, and dry silk is more, typically can not directly utilize, and is substantially and is discarded in warehouse as waste material, the most not only
Waste resource, occupy memory space, also substantially increase production cost.
In view of such present situation, prepreg tape waste material is pulverized, apply in other products as feed back the most again, nothing
Opinion be in terms of environmental protection for, or in terms of economizing on resources from the point of view of, be all a useful thing.Prepreg tape is not only given up by this
Material is turned waste into wealth, and also solves the storage of prepreg tape waste material and the problem of processing, as prepreg tape particle carries out direct pressing plate, general
Prepreg tape particle adds in extruder as feed back.Owing to prepreg tape waste material is the same with prepreg tape, there is preferable mechanical performance,
Pulverize more difficulty, there is presently no relevant breaking method and apparatus system and prepreg tape waste material is carried out relevant treatment.
Summary of the invention
In order to fill up the blank of prior art, it is an object of the invention to provide the breaking method of a kind of prepreg tape waste material.
It is a further object to provide the device that the breaking method of a kind of above-mentioned prepreg tape waste material is used.
To achieve these goals, the technical solution used in the present invention is as follows:
The breaking method of a kind of prepreg tape waste material, comprises the following steps: first prepreg tape waste material is cut into band, then by bar
Band is ground into prepreg tape particle.
The width of described band is 5～50mm.
Described prepreg tape particle be shaped as strip, its width is 2～30mm, a length of 10～100mm.
Described prepreg tape waste material is continuous fiber reinforced thermoplastic resin base prepreg tape waste material；It is preferably continuous glass fibre and strengthens poly-
Propylene prepreg tape waste material, continuous glass fibre strengthen polyethylene terephthalate prepreg tape waste material or continuous glass fibre strengthens poly-
Mutual-phenenyl two acid bromide two alcohol ester's prepreg tape waste material.
The device that the breaking method of a kind of above-mentioned prepreg tape waste material is used, including cutting unit and pulverizing unit；
Described unit of cutting is the device cut for prepreg tape waste material,
Described pulverizing unit is for pulverizing from the device cutting unit band out.
Described unit of cutting includes unreeling roll shaft, front pilot unit, cutting device, rear pilot unit and wrap-up, above-mentioned group
Part is sequentially connected with.
The described number unreeling roll shaft is one, unreels the mode that unreels of roll shaft for passively to unreel.
Described front pilot unit is circular to guide steel rider, including the first guide roller, the second guide roller and the 3rd guide roller, and described the
One end of one guide roller is attached with the described roll shaft that unreels, the other end of described first guide roller and the one of described second guide roller
End connects, and the other end of described second guide roller is connected with one end of described 3rd guide roller, the other end of described 3rd guide roller
It is connected with one end of described cutting device.
Described cutting device includes that cylinder blade roll shaft and carry-over pinch rolls, described cylinder blade roll shaft are arranged on front pilot unit and traction
Between roller, described carry-over pinch rolls are arranged between cylinder blade roll shaft and rear pilot unit；Preferably, on described cylinder blade roll shaft
Being provided with multiple cylinder blade, the plurality of cylinder blade equidistant arrangement, quantity is 5～24, between two farthest cylinder blades
Distance be 750mm.
Described rear pilot unit is circular to guide steel rider, including the 4th guide roller, the 5th guide roller and the 6th guide roller, and described the
One end of four guide rollers is connected with the other end of described cutting device, the other end of described 4th guide roller and described 5th guide roller
One end connect, the other end of described 5th guide roller respectively with the lower row's wind-up roll in described wrap-up, described 6th guide
One end of roller connects, and the other end of described 6th guide roller is connected with the upper row's wind-up roll in described wrap-up.
Described wrap-up includes the quantity of wind-up roll in row's wind-up roll and lower row's wind-up roll, upper row's wind-up roll and lower row's wind-up roll
It is 6～25.
Described pulverizing unit includes feeding mouth, cutting mechanism, motor and discharging opening；Described feeding mouth, cutting mechanism, motor and
Discharging opening is sequentially connected with from top to bottom.
Described cutting mechanism includes shearing chamber, moving knife roller, ledger-plate and screen cloth, and described shearing chamber is positioned in the middle of frame, described dynamic
Rotor is positioned at the center shearing chamber, and described ledger-plate is fixed in frame, and described screen cloth is positioned at bottom shearing chamber.
Being fixed with multiple cutting blade on described moving knife roller, the quantity of described cutting blade is 3, and the rotating speed of described moving knife roller is
500～1000r/min.
The quantity of described ledger-plate is 2.
Described screen cloth is provided with several sieve apertures being shaped as approximate ellipsoidal, and the width of described sieve aperture is 10～30mm, a length of
50～80mm, the spacing between several sieve apertures is 10～30mm, is 2～30mm to ensure the prepreg tape particle width pulverized,
A length of 10～100mm, thus it is effectively kept the high-strength characteristic of prepreg tape.
Owing to using technique scheme, the present invention has the following advantages and beneficial effect:
The present invention can prepare efficiently while realizing prepreg tape waste recovery have certain physical property and shape prepreg tape give up
Material particle, and do not produce second time public hazards, successfully will be difficult to the continuous fiber reinforced thermoplastic resin base prepreg tape waste material pulverized
Pulverized.
The method of the present invention the thermoplastic resin-based prepreg tape waste powder produced can be broken into width 2～30mm, length exists
The prepreg tape particle of 10～100mm, and it has been effectively kept the high-strength characteristic of prepreg tape.
Accompanying drawing explanation
The structural representation cutting unit in the device that the breaking method of the prepreg tape waste material that Fig. 1 is the embodiment of the present invention is used
Figure.
The structural representation of the pulverizing unit in the device that the breaking method of the prepreg tape waste material that Fig. 2 is the embodiment of the present invention is used
Figure.
Fig. 3 is the structural representation of screen cloth.
Wherein: 1 for unreel roll shaft, 2 be the first guide roller, 3 be the second guide roller, 4 be the 3rd guide roller, 5 for carry-over pinch rolls,
6 for cylinder blade roll shaft, 7 be the 4th guide roller, 8 be the 5th guide roller, 9 be the 6th guide roller, 10 for wrap-up, 11
For feeding mouth, 12 be cutting blade, 13 for moving knife roller, 14 for ledger-plate, 15 for shear chamber, 16 for screen cloth, 17 for motor,
18 is discharging opening.
Detailed description of the invention
The present invention is further detailed explanation for illustrated embodiment below in conjunction with the accompanying drawings.
Embodiment 1
The pulverizing of a kind of continuous glass fiber reinforced polypropylene prepreg tape waste material, gives up continuous glass fiber reinforced polypropylene prepreg tape
Material is placed on and unreels on roll shaft 1, under the traction of carry-over pinch rolls 5, prepreg tape waste material through front pilot unit (the first guide roller 2,
Second guide roller the 3, the 3rd guide roller 4) enter cutting device afterwards and cut, in regulation cutting device on cylinder blade roll shaft 6
The spacing of 24 cylinder blades is 30mm, 24 cylinder blade equidistant arrangement, in order to by prepreg tape waste material wide for 750mm
Cut into 25 bands wide for 30mm, the band after cutting through after pilot unit (the 4th guide roller the 7, the 5th guide roller 8,
6th guide roller 9) after be wrapped on upper row's wind-up roll and lower row's wind-up roll of wrap-up 10.Prepreg tape scrap ribbon after cutting
Band is put in pulverizer by the feeding mouth 11 of pulverizing unit, and prepreg tape scrap ribbon band enters shears servo-actuated rotor 13 behind chamber 15
Rotating, regulation moving knife roller 13 rotating speed is 1000r/min, enables prepreg tape waste material band 3 cutting blades 12 and 2
Pulverize under the shear action of the ledger-plate 14 on fixed frame, when prepreg tape particle width is close to sieve aperture width 30mm, long
Spend close to during mesh-length 80mm can by draining to discharging opening 18 under the sieve aperture on screen cloth 16, prepare width 2～30mm,
Length 10～100mm continuous glass fiber reinforced polypropylene prepreg tape particle.
Embodiment 2
The pulverizing of a kind of continuous glass fibre REINFORCED PET prepreg tape waste material, is placed on waste material and unreels on roll shaft, leading at carry-over pinch rolls
Under drawing, prepreg tape waste material enters after front pilot unit (the first guide roller, the second guide roller, the 3rd guide roller) and cuts dress
Putting and cut, in regulation cutting device, on cylinder blade roll shaft, the spacing of 5 cylinder blades is 20mm, 5 cylinder blades
Equidistant arrangement, in order to prepreg tape waste material wide for 120mm is cut into 6 bands wide for 20mm, the band after cutting through after lead
The upper row's wind-up roll and the lower row that are wrapped in wrap-up after unit (the 4th guide roller, the 5th guide roller, the 6th guide roller) receive
On winding up roller.Prepreg tape waste material band after cutting is put in pulverizer by the feeding mouth of pulverizing unit, prepreg tape waste material band
Entering servo-actuated rotor after shearing chamber to rotate, the dynamic axle rotational speed of regulation is 750r/min, enables prepreg tape waste material band 3
Pulverize under the shear action of the ledger-plate on individual cutting blade and 2 fixed frames, when prepreg tape particle width is close to sieve aperture width
Degree 20mm, length can prepare width exist by draining to discharging opening under the sieve aperture on screen cloth close to during mesh-length 65mm
2～20mm, length 10～70mm continuous glass fibre REINFORCED PET prepreg tape particle.
Embodiment 3
A kind of continuous glass fibre strengthens the pulverizing of PBT prepreg tape waste material, is placed on by waste material and unreels on roll shaft, leading at carry-over pinch rolls
Under drawing, prepreg tape waste material enters after front pilot unit (the first guide roller, the second guide roller, the 3rd guide roller) and cuts dress
Putting and cut, in regulation cutting device, on cylinder blade roll shaft, the spacing of 17 cylinder blades is 5mm, 17 cylinder blades
Equidistant arrangement, in order to prepreg tape waste material wide for 90mm is cut into 18 bands wide for 5mm, the band after cutting through after lead
The upper row's wind-up roll and the lower row that are wrapped in wrap-up after unit (the 4th guide roller, the 5th guide roller, the 6th guide roller) receive
On winding up roller.Prepreg tape waste material band after cutting is put in pulverizer by the feeding mouth of pulverizing unit, prepreg tape waste material band
Entering servo-actuated rotor after shearing chamber to rotate, the dynamic axle rotational speed of regulation is 500r/min, enables prepreg tape waste material band 3
Pulverize under the shear action of the ledger-plate on individual cutting blade and 2 fixed frames, when prepreg tape particle width taps into sieve aperture width
Degree 10mm, length can prepare width exist by draining to discharging opening under the sieve aperture on screen cloth close to during mesh-length 50mm
2～5mm, length strengthens PBT prepreg tape particle at the continuous glass fibre of 10～60mm.
Embodiment 4
The device that the breaking method of a kind of above-mentioned prepreg tape waste material is used, including cutting unit and pulverizing unit；Cutting unit is
The device cut for prepreg tape waste material, pulverizing unit is for pulverizing from the device cutting unit band out.
As it is shown in figure 1, the device that used of the breaking method of prepreg tape waste material that Fig. 1 is the embodiment of the present invention cuts unit
Structural representation.Cut unit to include unreeling roll shaft 1, front pilot unit, cutting device, rear pilot unit and wrap-up
10, said modules is sequentially connected with.Wherein: the number unreeling roll shaft 1 is one, the mode that unreels of roll shaft 1 is unreeled for passively to put
Volume；Front pilot unit is circular guiding steel rider, and including the first guide roller the 2, second guide roller 3 and the 3rd guide roller 4, first leads
Being attached with unreeling roll shaft 1 to one end of roller 2, the other end of the first guide roller 2 and one end of the second guide roller 3 connect,
The other end of the second guide roller 3 and one end of the 3rd guide roller 4 connect, the other end of the 3rd guide roller 4 and the one of cutting device
End connects.Cutting device includes cylinder blade roll shaft 6 and carry-over pinch rolls 5, and cylinder blade roll shaft 6 is arranged on front pilot unit and leads
Between pick-up roll 5, carry-over pinch rolls 5 are arranged between cylinder blade roll shaft 6 and rear pilot unit；Preferably, cylinder blade roll shaft 6
Being provided with multiple cylinder blade, multiple cylinder blade equidistant arrangement, quantity is 5～24, between two farthest cylinder blades
Distance is 750mm.Rear pilot unit is circular guiding steel rider, including the 4th guide roller the 7, the 5th guide roller 8 and the 6th guiding
Roller 9, one end of the 4th guide roller 7 is connected with the other end of cutting device, the other end of the 4th guide roller 7 and the 5th guide roller 8
One end connect, the other end of the 5th guide roller 8 respectively with the lower row's wind-up roll in wrap-up 10, the one of the 6th guide roller 9
End connects, and the other end of the 6th guide roller 9 is connected with the upper row's wind-up roll in wrap-up 10.Wrap-up 10 includes row
In wind-up roll and lower row's wind-up roll, upper row's wind-up roll and lower row's wind-up roll, the quantity of wind-up roll is 6～25.
As in figure 2 it is shown, the pulverizing unit in the device that used of the breaking method of prepreg tape waste material that Fig. 2 is the embodiment of the present invention
Structural representation.Pulverizing unit includes feeding mouth 11, cutting mechanism, motor 17 and discharging opening 18；Feeding mouth 11, shearing
Mechanism, motor 17 and discharging opening 18 are sequentially connected with from top to bottom.Wherein: cutting mechanism include shear chamber 15, moving knife roller 13,
Ledger-plate 14 and screen cloth 16, shear chamber 15 and be positioned in the middle of frame, and moving knife roller 13 is positioned at the center shearing chamber 15, ledger-plate 14
Being fixed in frame, screen cloth 16 is positioned at bottom shearing chamber 15.Multiple cutting blade 12, cutting blade it is fixed with on moving knife roller 13
The quantity of 12 is 3, and the rotating speed of moving knife roller 13 is 500～1000r/min, and the quantity of ledger-plate 14 is 2.
As it is shown on figure 3, Fig. 3 is the structural representation of screen cloth.Screen cloth 16 is provided with several sieve apertures being shaped as approximate ellipsoidal,
The width of sieve aperture is 10～30mm, a length of 50～80mm, and the spacing between several sieve apertures is 10～30mm, to ensure powder
Broken prepreg tape particle width is 2～30mm, a length of 10～100mm, thus is effectively kept the high-strength characteristic of prepreg tape.
The above-mentioned description to embodiment is to be understood that for ease of those skilled in the art and apply the present invention.It is familiar with
These embodiments obviously easily can be made various amendment by the personnel of art technology, and should General Principle described herein
Use in other embodiments without through performing creative labour.Therefore, the invention is not restricted to embodiment here, this area skill
Art personnel should be at the protection model of the present invention according to the announcement of the present invention, the improvement made without departing from scope and amendment
Within enclosing.
Claims (10)
1. the breaking method of a prepreg tape waste material, it is characterised in that: comprise the following steps: first prepreg tape waste material is cut into
Band, is then ground into prepreg tape particle by band.
The breaking method of prepreg tape waste material the most according to claim 1, it is characterised in that: the width of described band is
5～50mm.
The breaking method of prepreg tape waste material the most according to claim 1, it is characterised in that: the shape of described prepreg tape particle
For strip, its width is 2～30mm, a length of 10～100mm.
The breaking method of prepreg tape waste material the most according to claim 1, it is characterised in that: described prepreg tape waste material is continuous
Fiber-reinforced thermoplastic resin base prepreg tape waste material；It is preferably continuous glass fiber reinforced polypropylene prepreg tape waste material, continuous glass
Fiber reinforcement polyethylene terephthalate prepreg tape waste material or continuous glass fibre strengthen polybutylene terephthalate (PBT) prepreg tape
Waste material.
5. the device that the breaking method of the arbitrary described prepreg tape waste material of Claims 1-4 is used, it is characterised in that:
Including cutting unit and pulverizing unit；
Described unit of cutting is the device cut for prepreg tape waste material,
Described pulverizing unit is for pulverizing from the device cutting unit band out.
The device that the breaking method of prepreg tape waste material the most according to claim 5 is used, it is characterised in that cut described in:
Unit includes unreeling roll shaft (1), front pilot unit, cutting device, rear pilot unit and wrap-up (10), and said modules depends on
Secondary connection.
The device that the breaking method of prepreg tape waste material the most according to claim 6 is used, it is characterised in that unreel described in:
The number of roll shaft (1) is one, unreels the mode that unreels of roll shaft (1) for passively to unreel；
Or, described front pilot unit is circular guiding steel rider, leads including the first guide roller (2), the second guide roller (3) and the 3rd
To roller (4), one end of described first guide roller (2) is attached with the described roll shaft (1) that unreels, described first guide roller (2)
The other end be connected with one end of described second guide roller (3), the other end of described second guide roller (3) is led with the described 3rd
Connecting to one end of roller (4), the other end of described 3rd guide roller (4) is connected with one end of described cutting device；
Or, described cutting device includes cylinder blade roll shaft (6) and carry-over pinch rolls (5), and described cylinder blade roll shaft (6) is arranged
Between front pilot unit and carry-over pinch rolls (5), described carry-over pinch rolls (5) are arranged on cylinder blade roll shaft (6) and rear pilot unit
Between；Preferably, described cylinder blade roll shaft (6) is provided with multiple cylinder blade, the plurality of cylinder blade equidistant arrangement,
Quantity is 5～24, and the farthest distance between two cylinder blades is 750mm；
Or, described rear pilot unit is circular guiding steel rider, leads including the 4th guide roller (7), the 5th guide roller (8) and the 6th
To roller (9), one end of described 4th guide roller (7) is connected with the other end of described cutting device, described 4th guide roller (7)
The other end be connected with one end of described 5th guide roller (8), the other end of described 5th guide roller (8) respectively with described receipts
Lower row's wind-up roll in winding apparatus (10), one end of described 6th guide roller (9) connect, described 6th guide roller (9)
The other end is connected with the upper row's wind-up roll in described wrap-up (10)；
Or, described wrap-up (10) includes receiving in row's wind-up roll and lower row's wind-up roll, upper row's wind-up roll and lower row's wind-up roll
The quantity of winding up roller is 6～25.
The device that the breaking method of prepreg tape waste material the most according to claim 5 is used, it is characterised in that: described pulverizing
Unit includes feeding mouth (11), cutting mechanism, motor (17) and discharging opening (18)；Described feeding mouth (11), cutting mechanism,
Motor (17) and discharging opening (18) are sequentially connected with from top to bottom.
The device that the breaking method of prepreg tape waste material the most according to claim 8 is used, it is characterised in that: described shearing
Mechanism includes shearing chamber (15), moving knife roller (13), ledger-plate (14) and screen cloth (16), and described shearing chamber (15) is positioned at machine
In the middle of frame, described moving knife roller (13) is positioned at the center shearing chamber (15), and described ledger-plate (14) is fixed in frame, institute
State screen cloth (16) and be positioned at shearing chamber (15) bottom；
Or, it is preferred that it is fixed with multiple cutting blade (12), the quantity of described cutting blade (12) on described moving knife roller (13)
Being 3, the rotating speed of described moving knife roller (13) is 500～1000r/min；
Or, it is preferred that the quantity of described ledger-plate (14) is 2.
The device that the breaking method of prepreg tape waste material the most according to claim 9 is used, it is characterised in that: described sieve
Net (16) is provided with several sieve apertures being shaped as approximate ellipsoidal；Preferably, the width of described sieve aperture is 10～30mm, long
Degree is 50～80mm, and the spacing between several sieve apertures is 10～30mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510323017.5A CN106273072A (en) | 2015-06-12 | 2015-06-12 | The breaking method of a kind of prepreg tape waste material and the device of use |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510323017.5A CN106273072A (en) | 2015-06-12 | 2015-06-12 | The breaking method of a kind of prepreg tape waste material and the device of use |
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|---|---|
| CN106273072A true CN106273072A (en) | 2017-01-04 |
Family
ID=57650566
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510323017.5A Pending CN106273072A (en) | 2015-06-12 | 2015-06-12 | The breaking method of a kind of prepreg tape waste material and the device of use |
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| CN (1) | CN106273072A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107081199A (en) * | 2017-06-20 | 2017-08-22 | 芜湖夏鑫新型材料科技有限公司 | Diaphragm slitter edge apparatus for crushing and treating |
| CN109250561A (en) * | 2018-10-09 | 2019-01-22 | 浙江辰鸿纺织品科技股份有限公司 | Roller shutter synchronizes cutting machine |
| CN111908208A (en) * | 2020-09-16 | 2020-11-10 | 江西若邦科技股份有限公司 | Cover tape slitting tool |
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| CN111908208B (en) * | 2020-09-16 | 2021-11-09 | 江西若邦科技股份有限公司 | Cover tape slitting tool |
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Application publication date: 20170104 |