CN109849373B - Carbon fiber prepreg actuating device for automatic carbon fiber laying machine - Google Patents
Carbon fiber prepreg actuating device for automatic carbon fiber laying machine Download PDFInfo
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- CN109849373B CN109849373B CN201910074708.4A CN201910074708A CN109849373B CN 109849373 B CN109849373 B CN 109849373B CN 201910074708 A CN201910074708 A CN 201910074708A CN 109849373 B CN109849373 B CN 109849373B
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- 229920000049 Carbon (fiber) Polymers 0.000 title claims abstract description 34
- 239000004917 carbon fiber Substances 0.000 title claims abstract description 34
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 34
- 230000000712 assembly Effects 0.000 claims abstract description 6
- 238000000429 assembly Methods 0.000 claims abstract description 6
- 230000006835 compression Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- 238000005520 cutting process Methods 0.000 abstract description 7
- 239000002184 metal Substances 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 230000009471 action Effects 0.000 description 4
- 239000002131 composite material Substances 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- 230000003068 static effect Effects 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000012636 effector Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
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- Reinforced Plastic Materials (AREA)
- Inorganic Fibers (AREA)
- Preliminary Treatment Of Fibers (AREA)
Abstract
A carbon fiber prepreg actuating device for a carbon fiber automatic wire laying machine relates to the technical field of carbon fiber automatic wire laying machines, and specifically comprises an anvil plate wheel assembly; the chopping board wheel assembly comprises a group of chopping board wheel frames, the chopping board wheel frames are arranged on the automatic wire laying machine, a plurality of groups of chopping board wheels are arranged on the chopping board wheel frames side by side, an air expansion shaft is arranged below the chopping board wheel assembly, one end of the air expansion shaft is connected with a motor main shaft, two ends of the air expansion shaft are arranged on the automatic wire laying machine through bearing seats, a plurality of groups of cams are arranged on the air expansion shaft, carbon fiber prepreg yarn paths pass through between the cams and the chopping board wheels, a group of carbon fiber prepreg cutters are further arranged on the cams, and a group of trigger cylinder assemblies are arranged beside the air expansion shaft; the invention has few impact load on parts during operation, so that less chips are generated, and no direct collision of metal to metal exists, thereby reducing the requirements of cutter materials and prolonging the service lives of cutters and cutting boards.
Description
Technical Field
The invention relates to the technical field of automatic carbon fiber wire laying machines, in particular to a carbon fiber prepreg actuating device for an automatic carbon fiber wire laying machine.
Background
Automatic wire laying technology has been widely used and developed over the last three decades and has become a typical representation of composite material forming automation technology. Compared with the automatic tape laying technology, the automatic wire laying technology has better adaptability and can be used for manufacturing composite material parts with complex curved surfaces. The basic principle of the automatic wire laying machine is as follows: the method is characterized in that multi-tow unidirectional prepreg slitting narrow belts are used as raw materials, a plurality of prepreg tows are clustered into a piece of prepreg filaments with variable width under a flexible compression roller, and the prepreg filaments are attached to the surface of a core die through a wire laying head under the action of certain temperature and pressure to finish automatic laying of a composite material component. Compared with the automatic tape laying technology, the automatic wire laying technology has better adaptability and can be used for manufacturing composite material parts with complex curved surfaces;
when the wire cutter of the current automatic wire spreading machine completes the wire cutting work, the wire cutter collides with a metal chopping board at high speed, so that the service life of elements (including the cutter and the chopping board) is shorter, and the hardness of the cutter is greatly required. In addition, the clearance of the cutter guide groove of the existing automatic wire laying machine is small, chip accumulation is easy to occur, frequent shutdown cleaning of equipment is caused, and equipment productivity is reduced.
Disclosure of Invention
The invention overcomes the defects of the prior art and provides the carbon fiber prepreg actuating device for the automatic carbon fiber wire laying machine. According to the invention, the motor drives the air expansion shaft to rotate, the air expansion shaft is inflated to expand to drive the cam to rotate, in the process of rotating the cam, a path passes through between the cam and the chopping board wheel, two groups of positioning grooves are processed on the cam, a group of carbon fiber prepreg cutters are further arranged on the cam to rotate to corresponding positions, the carbon fiber prepreg filaments are cut off, the shredding mode is closer to extrusion by static pressure, the parts have almost no impact load, so that less cuttings are produced, no direct collision of metal to metal exists, the requirements on cutter materials are reduced, the service lives of cutters and chopping boards are prolonged, the requirements on cutter materials and heat treatment are reduced, and the equipment cost is reduced. In addition, the mechanism has no narrow gap which is easy to accumulate chips, so that the chip cleaning problem is solved, and the equipment reliability is provided.
The technical scheme of the invention is as follows:
a carbon fiber prepreg actuating device for a carbon fiber automatic wire laying machine comprises an anvil plate wheel assembly; the chopping block wheel assembly comprises a group of chopping block wheel frames, the chopping block wheel frames are arranged on an automatic wire laying machine, a plurality of groups of chopping block wheel frames are arranged on the chopping block wheel frames side by side, an air expansion shaft is arranged below the chopping block wheel assemblies, one end of the air expansion shaft is connected with a motor spindle, two ends of the air expansion shaft are arranged on the automatic wire laying machine through bearing seats, a plurality of groups of cams are arranged on the air expansion shaft, carbon fiber prepreg yarn paths penetrate through the cams and the chopping block wheel frames, two groups of positioning grooves are formed in the cams, a group of carbon fiber prepreg cutters are further arranged on the cams, a group of trigger cylinder assemblies are arranged beside the air expansion shaft, each trigger cylinder assembly comprises a group of cylinder frames, a plurality of groups of trigger cylinders are arranged on the cylinder frames, and a group of positioning protrusions are arranged at the movable ends of the trigger cylinders and are matched with the positioning grooves in the cams.
Further, the chopping board wheel is pre-tightened through a compression spring.
Further, the number of the cams is the same as that of the chopping board wheels, and the positions of the cams are vertically corresponding to the positions of the chopping board wheels.
Further, the number of the trigger cylinders is the same as that of the cams, and the positions of the trigger cylinders correspond to each other.
Compared with the prior art, the invention has the following beneficial effects:
the invention has no too small gap and chute which are easy to cause the accumulation of the cutting chips, so that the invention does not need to stop and clean regularly, and has higher productivity;
the energy of shredding is derived from the elastic potential energy of the compression spring, and the air cylinder only plays a role of a trigger and does not provide shredding energy, so that no instantaneous air flow requirement is met for the air cylinder, and the air cylinder of the trigger can use a direct-acting valve, so that the response time of the direct-acting valve is short, and the flow is small; the air expansion shaft can be inflated in advance before the cam moves, and meanwhile, the stroke of the trigger cylinder is extremely short, so that the response time of the whole air path is greatly shortened; can be reduced from more than 15ms to about 5 ms;
because the end effector inevitably generates speed fluctuation in the automatic laying process, and every 100mm/s speed fluctuation is generated, the pneumatic delay of every 1ms generates a laying error of 0.1mm, and the maximum allowable error in the laying process is only 1mm, the rapidness of the mechanism improves the laying precision, and the requirement on precision compensation is greatly reduced;
the invention integrates three functions of yarn cutting, yarn feeding and yarn stopping in the machine head of the original automatic yarn laying machine into the same mechanism, thereby ensuring that the control is more concise
The invention has the advantages that the shredding effect is irrelevant to the tension of the yarn, and the mechanism has smaller size, thereby reducing the size of the yarn laying head, and the characteristics improve the process adaptability and the equipment accessibility, so that the invention is particularly suitable for laying a negative curvature curved surface.
Drawings
FIG. 1 is an overall isometric view of the present invention;
FIG. 2 is an overall exploded view of the present invention;
FIG. 3 is a schematic view of the free state structure of the carbon fiber prepreg circuit of the present invention;
FIG. 4 is a schematic view showing a yarn cutting state structure of a carbon fiber prepreg yarn path according to the present invention;
FIG. 5 is a schematic view showing a yarn-stopping state structure of the carbon fiber prepreg yarn path of the present invention;
fig. 6 is an overall isometric view of the cam of the present invention.
1-anvil wheel assembly; 2-an air expansion shaft; 3-cams; 4-a trigger cylinder assembly; 11-a chopping board wheel frame; 12-anvil plate wheel; 13-compressing a spring; 31-positioning grooves; 32-a carbon fiber prepreg cutter; 41-cylinder frame; 42-trigger cylinder.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings.
Referring to fig. 1 to 6, a carbon fiber prepreg actuating device for an automatic carbon fiber laying machine disclosed in this embodiment includes an anvil wheel assembly 1; the chopping block wheel assembly 1 comprises a group of chopping block wheel frames 11, the chopping block wheel frames 11 are arranged on an automatic wire laying machine, a plurality of groups of chopping block plate wheels 12 are arranged on the chopping block wheel frames 11 side by side, an air expansion shaft 2 is arranged below the chopping block wheel assembly 1, two ends of the air expansion shaft 2 are arranged on the automatic wire laying machine through bearing seats, a plurality of groups of cams 3 are arranged on the air expansion shaft 2, carbon fiber prepreg yarn paths penetrate through between the cams 3 and the chopping block wheels 12, two groups of positioning grooves 31 are formed in the cams 3, a group of carbon fiber prepreg cutters 32 are further arranged on the cams 3, a group of trigger cylinder assemblies 4 are arranged beside the air expansion shaft 2, each trigger cylinder assembly 4 comprises a group of cylinder frames 41, a plurality of groups of trigger cylinders 42 are arranged on the cylinder frames 41, a group of positioning protrusions 43 are arranged at movable ends of the trigger cylinders 42, and the positioning protrusions 43 are matched with the positioning grooves 31 on the cams 3.
Specifically, the anvil wheel 12 is preloaded by a compression spring 13.
Specifically, the number of cams 3 is the same as the number of chopping board wheels 12 and the positions thereof are up and down corresponding.
Specifically, the number of the trigger cylinders 42 is the same as the number of the cams 3 and the positions thereof correspond to each other.
The working process of the invention comprises the following steps:
the inflatable shaft 2 is driven by a motor to rotate; on the air expansion shaft 2, a row cam 3 is arranged corresponding to the position of each yarn in the carbon fiber prepreg yarn path; a corresponding chopping board wheel is arranged above each cam 3, the chopping board wheels are pre-tensioned by a compression spring, and a prepreg yarn path passes through between the cams 3 and the chopping board wheels; when the inflatable shaft is inflated, the cam 3 rotates along with the inflatable shaft under the action of friction force; by designing the profile of the cam 3 and arranging the carbon fiber prepreg cutter 32 on the cam, the distance between the cam 3 and the anvil plate wheel is changed in the process of one rotation of the cam; the prepreg is in a clamped, free or cut-off state with the change of the distance; a trigger cylinder 42 is arranged on one side of the cam 3, when the trigger cylinder 42 pushes a positioning protrusion 43 to be clamped into a groove on the cam 3, the cam 3 is in a static state, and the inflatable shaft 2 is not inflated to avoid excessive friction; when the trigger cylinder 42 is retracted under the condition that the inflatable shaft 2 is inflated, the cam 3 is locked with the inflatable shaft 2 and starts to rotate along with the inflatable shaft 2, and when the positioning groove 31 on the cam 3 moves to the trigger cylinder 42 again, the trigger cylinder 42 pushes the positioning protrusion 43 to be clamped into the cam 3 again so as to be static; the combined action of the air cylinder and the air expansion shaft can be used for controlling the cyclic reciprocation of the state, thereby completing the actions of yarn stopping, yarn feeding and yarn cutting.
The connection mentioned in the present invention is divided into a fixed connection and a detachable connection, the fixed connection (i.e. non-detachable connection) includes, but is not limited to, a conventional fixed connection manner such as a hemmed connection, a rivet connection, an adhesive connection, a welded connection, etc., the detachable connection includes, but is not limited to, a conventional detachable manner such as a threaded connection, a snap connection, a pin connection, a hinge connection, etc., and when a specific connection manner is not explicitly limited, at least one connection manner can be found in the existing connection manner by default, so that the function can be achieved, and a person skilled in the art can select the connection according to needs. For example: the fixed connection is welded connection, and the detachable connection is hinged connection.
The above embodiments are only illustrative of the present patent and do not limit the protection scope thereof, and those skilled in the art can also change the parts thereof, which are within the protection scope of the present patent without exceeding the spirit of the present patent.
Claims (1)
1. A carbon fiber prepreg actuating device for automatic shop silk machine of carbon fiber, its characterized in that: comprises an anvil plate wheel assembly (1); the chopping block wheel assembly (1) comprises a group of chopping block wheel frames (11), the chopping block wheel frames (11) are arranged on an automatic wire laying machine, a plurality of groups of chopping block plate wheels (12) are arranged on the chopping block wheel frames (11) side by side, a pneumatic shaft (2) is arranged below the chopping block wheel assembly (1), two ends of the pneumatic shaft (2) are arranged on the automatic wire laying machine through bearing seats, a plurality of groups of cams (3) are arranged on the pneumatic shaft (2), a carbon fiber prepreg yarn path passes through between the cams (3) and the chopping block wheels (12), two groups of positioning grooves (31) are formed in the cams (3), a group of carbon fiber prepreg cutters (32) are further arranged on the cams (3), a group of trigger cylinder assemblies (4) are arranged beside the pneumatic shaft (2), the trigger cylinder assemblies (4) comprise a group of cylinder frames (41), a plurality of groups of trigger cylinders (42) are arranged on the cylinder frames (41), a group of positioning protrusions (43) are arranged at movable ends of the trigger cylinders (42), and the positioning protrusions (43) are matched with the positioning protrusions (43);
the chopping board wheel (12) is pre-tightened through a compression spring (13);
the number of the cams (3) is the same as that of the chopping board wheels (12) and the positions of the cams are up and down corresponding to each other;
the number of the trigger air cylinders (42) is the same as that of the cams (3) and the positions of the trigger air cylinders correspond to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910074708.4A CN109849373B (en) | 2019-01-25 | 2019-01-25 | Carbon fiber prepreg actuating device for automatic carbon fiber laying machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910074708.4A CN109849373B (en) | 2019-01-25 | 2019-01-25 | Carbon fiber prepreg actuating device for automatic carbon fiber laying machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109849373A CN109849373A (en) | 2019-06-07 |
| CN109849373B true CN109849373B (en) | 2023-12-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910074708.4A Active CN109849373B (en) | 2019-01-25 | 2019-01-25 | Carbon fiber prepreg actuating device for automatic carbon fiber laying machine |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112606432B (en) * | 2020-11-30 | 2022-02-11 | 浙江大学 | A tape laying device for combined material preimpregnation area shaping manufacturing |
| CN113050736B (en) * | 2021-06-02 | 2021-09-03 | 成都飞机工业（集团）有限责任公司 | Method for detecting stiffness of prepreg by automatic fiber placement |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL6403218A (en) * | 1963-03-25 | 1964-09-28 | ||
| CN102963010A (en) * | 2012-11-28 | 2013-03-13 | 西安交通大学 | Shearing mechanism of resin-based fiber placement system |
| CN104669646A (en) * | 2013-11-30 | 2015-06-03 | 林世平 | Manufacturing equipment for fused and co-extruded fiber felt enhanced multilayered composite board and application method thereof |
| CN206306501U (en) * | 2016-12-19 | 2017-07-07 | 北京雅努斯磨具有限公司 | A kind of fiberglass-based panel moulding apparatus |
| CN108237707A (en) * | 2017-12-28 | 2018-07-03 | 北京航空航天大学 | Carbon fiber bundle clamping/shearing/can be achieved and resend the mechanism arrangement of function |
| CN108995242A (en) * | 2018-10-24 | 2018-12-14 | 浙江德毅隆科技股份有限公司 | A kind of composite material grid manufacturing equipment, manufacturing method and its grid |
| CN109228413A (en) * | 2018-10-26 | 2019-01-18 | 常州新创航空科技有限公司 | A kind of core material shaping equipment and its tensile strength control method |
| CN209409353U (en) * | 2019-01-25 | 2019-09-20 | 肖睿 | A kind of carbon fiber prepreg acting device for carbon fiber automatic fiber placement machine |
-
2019
- 2019-01-25 CN CN201910074708.4A patent/CN109849373B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL6403218A (en) * | 1963-03-25 | 1964-09-28 | ||
| CN102963010A (en) * | 2012-11-28 | 2013-03-13 | 西安交通大学 | Shearing mechanism of resin-based fiber placement system |
| CN104669646A (en) * | 2013-11-30 | 2015-06-03 | 林世平 | Manufacturing equipment for fused and co-extruded fiber felt enhanced multilayered composite board and application method thereof |
| CN206306501U (en) * | 2016-12-19 | 2017-07-07 | 北京雅努斯磨具有限公司 | A kind of fiberglass-based panel moulding apparatus |
| CN108237707A (en) * | 2017-12-28 | 2018-07-03 | 北京航空航天大学 | Carbon fiber bundle clamping/shearing/can be achieved and resend the mechanism arrangement of function |
| CN108995242A (en) * | 2018-10-24 | 2018-12-14 | 浙江德毅隆科技股份有限公司 | A kind of composite material grid manufacturing equipment, manufacturing method and its grid |
| CN109228413A (en) * | 2018-10-26 | 2019-01-18 | 常州新创航空科技有限公司 | A kind of core material shaping equipment and its tensile strength control method |
| CN209409353U (en) * | 2019-01-25 | 2019-09-20 | 肖睿 | A kind of carbon fiber prepreg acting device for carbon fiber automatic fiber placement machine |
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| Publication number | Publication date |
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| CN109849373A (en) | 2019-06-07 |
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