Background technology
High-strength high-modulus polyethylene fiber (hereinafter referred polyethylene fibre) also claims ultra-high molecular weight polyethylene (UHMWPE) fiber or elongation chain (ECPE) polyethylene fibre, is meant that relative molecular mass is in (1~6) * 10
6Polyethylene, the ultra high molecular weight polyethylene fiber of after spinning-super drawing, making.
Polyethylene fibre is the high-performance fiber of extensive use after carbon fiber, aramid fiber (Kevlar) fiber; High-strength high-modulus polyethylene fiber reinforced composite (hereinafter referred polyethylene fiber reinforced compound material) is compared with other fibre reinforced composites, have light weight, shock-resistant, dielectric properties advantages of higher, bringing into play very important effect in fields such as modernized war and Aero-Space, marine site defence, weaponrys.Simultaneously, this fiber also has broad application prospects in fields such as automobile, boats and ships, medicine equipment, athletic sports appliances.Therefore, polyethylene fiber reinforced compound material is just extremely paid attention to from coming out, and develops very fast.
The preparation process of polyethylene fiber reinforced compound material often relates to sectioning.
As everyone knows, through before spin, after technological process such as to spin resulting be the individual layer composite (being composited by layer of polyethylene fiber and matrix material) that is web-like, in order to obtain having the composite of sufficient intensity and modulus, need the above-mentioned individual layer composite that is web-like is cut into the suitable sheet of specification, then the above-mentioned individual layer composite of multi-disc is stacked, and under suitable temperature and pressure, make it compound as a whole.
The way of sectioning is in the prior art, and the polyethylene fiber reinforced compound material that at first will be web-like launches predetermined length, it is laterally cut off with scissors by the operator then, so just obtains a slice and is roughly square polyethylene fiber reinforced compound material.
Obviously, operation each time only can provide a slice polyethylene fiber reinforced compound material in the above-mentioned prior art, and its production efficiency is very low, thereby makes sectioning become the bottleneck that restriction whole process of production production efficiency improves; In today that production automation degree improves day by day, it is more and more serious that the problems referred to above seem.
Therefore, how improving the efficient of sectioning in the polyethylene fiber reinforced compound material preparation process, is the present technical issues that need to address of those skilled in the art.
Summary of the invention
The purpose of this invention is to provide a kind of chopper and slicer, be used to cut web-like high-strength high-modulus polyethylene fiber reinforced composite, this equipment can significantly improve the efficient of sectioning in the polyethylene fiber reinforced compound material preparation process.Another object of the present invention provides a kind of web-like high-strength high-modulus polyethylene fiber reinforced composite dicing method that is used to cut.
For solving the problems of the technologies described above, the invention provides a kind of chopper and slicer, be used to cut web-like high-strength high-modulus polyethylene fiber reinforced composite, comprising: pedestal; Wind-up roll is articulated in described pedestal and is supported by described pedestal; Fastener is fixedlyed connected with described wind-up roll, is fixedly connected on the outer peripheral face of described wind-up roll in order to the end with described web-like high-strength high-modulus polyethylene fiber reinforced composite; Cutter sweep, can along the outer peripheral face of described wind-up roll and described wind-up roll axially on move; Preferably, described wind-up roll comprises central rotating shaft and at least three group spokes; Every group of spoke includes first spoke and second spoke, both are fixedly connected on the two ends of described central rotating shaft respectively, and perpendicular with described central rotating shaft substantially, the terminal cross bar that parallels with described central rotating shaft of fixedlying connected of described first spoke and second spoke; Described wind-up roll articulates by described central rotating shaft and described pedestal; Preferably, the end of described first spoke and second spoke is provided with connecting hole, and described cross bar is fixedlyed connected with second spoke with described first spoke by described connecting hole and bolt located therein; Preferably, the Long Circle of the cross section of described connecting hole for radially extending along described wind-up roll is so that adjust the spacing of described cross bar and described central rotating shaft.
Preferably, the cross bar between any one group of spoke further comprises first cross bar and second cross bar, and both keep suitable spacing; Described fastener comprises above-mentioned first cross bar and second cross bar, and the fastening bolt that is arranged at both both ends respectively; Described fastening bolt runs through above-mentioned first cross bar and second cross bar simultaneously, so that adjust both spacings.
Preferably, the fixedly connected swing arm of any end of described central rotating shaft.
Preferably, described pedestal further comprises the let off roll bearing that has suitable spacing with described wind-up roll; When being placed into described let off roll bearing, let off roll parallels over against described wind-up roll and both.
Preferably, described pedestal further comprises the slide plate of being located at described wind-up roll top, and described slide plate has the chute that axially is provided with along described wind-up roll; Described cutter sweep is connected in the described chute, thereby can slide along described chute.
Relative above-mentioned background technology, the chopper and slicer that is used to cut web-like high-strength high-modulus polyethylene fiber reinforced composite provided by the present invention, comprise pedestal, wind-up roll, fastener and cutter sweep, described wind-up roll is articulated in described pedestal and is supported by described pedestal; Described fastener is connected with described wind-up roll, is fixedly connected on the outer peripheral face of described wind-up roll in order to the end with described web-like high-strength high-modulus polyethylene fiber reinforced composite; Described cutter sweep can along the outer peripheral face of described wind-up roll and described wind-up roll axially on move.Therefore, can be at first the free end of the web-like high-strength high-modulus polyethylene fiber reinforced composite of slice be fixedly connected on the outer peripheral face of described wind-up roll, rotate described wind-up roll at least 720 degree then, thereby make the outer peripheral face of described wind-up roll twine two-layer described web-like high-strength high-modulus polyethylene fiber reinforced composite at least; At last by described cutter sweep axially the web-like high-strength high-modulus polyethylene fiber reinforced composite that its outer peripheral face twined is cut off along described wind-up roll.Like this, one time cutting operation promptly can obtain at least two described polyethylene fiber reinforced compound materials, and therefore the effect frequency of sectioning will obtain remarkable must the raising.
The specific embodiment
Core of the present invention provides a kind of chopper and slicer, is used to cut web-like high-strength high-modulus polyethylene fiber reinforced composite, and this equipment can significantly improve the efficient of sectioning in the polyethylene fiber reinforced compound material preparation process.Another core of the present invention provides a kind of web-like high-strength high-modulus polyethylene fiber reinforced composite dicing method that is used to cut.
In order to make those skilled in the art person understand the present invention program better, the present invention is described in further detail below in conjunction with drawings and embodiments.
Please refer to Fig. 1, Fig. 1 is the structural representation of a kind of specific embodiment of chopper and slicer provided by the present invention.
In a kind of specific embodiment, chopper and slicer provided by the present invention comprises pedestal 1, and pedestal 1 can be welded by the metal or alloy material.Described chopper and slicer also comprises wind-up roll 2, and wind-up roll 2 is articulated on the pedestal 1, and is supported by pedestal 1; Specifically, can be supported the central rotating shaft 21 of wind-up roll 2 by the wind-up roll bearing 11 of pedestal 1, both link positions are provided with bearing, thereby wind-up roll 2 can be rotated with respect to wind-up roll bearing 11.
Wind-up roll 2 can be a cylinder, and its bottom surface can be that circle, ellipse or its outer peripheral face of regular polygon can be used for twining described high-strength high-modulus polyethylene fiber reinforced composite.
Please also refer to Fig. 2, Fig. 2 is the structural representation of a kind of specific embodiment of wind-up roll provided by the present invention.
In a kind of specific embodiment, wind-up roll 2 provided by the present invention comprises central rotating shaft 21 and the spoke that is provided with in groups.
Described spoke comprises three groups at least, and every group of spoke includes first spoke 22 and second spoke 23.First spoke 22 and second spoke 23 are fixedly connected on the two ends of central rotating shaft 21 respectively, and both are perpendicular with central rotating shaft 21 substantially.
In the specific embodiment shown in Figure 2, first spoke 22 is positioned at the left end of central rotating shaft 21, and second spoke 23 is positioned at the right-hand member of central rotating shaft 21; The difference that should be pointed out that both only is to be provided with the position, and others can be identical.
In the specific embodiment shown in Figure 2, described spoke comprises six groups, and as previously mentioned, the spokes that are provided with more than three groups or three groups all are fine.
The spoke at central rotating shaft 21 left and right two ends preferably evenly is provided with.As shown in Figure 2, the left end of central rotating shaft 21 has the six roots of sensation first spoke 22, therefore, preferably all becomes 60 degree angles between the first adjacent spoke 22; At this moment, second spoke 23 of central rotating shaft 21 right-hand members also should evenly distribute.Obviously, wind-up roll 2 comprises under the situation of three groups of spokes, preferably all becomes 120 degree angles between the first adjacent spoke 22, second spoke 23.
As previously mentioned, every group of described spoke includes first spoke 22 and second spoke 23 that is positioned at central rotating shaft 21 left and right two ends, and cross bar 24 can be set between both ends; Cross bar 24 obviously should be parallel to central rotating shaft 21, and its effect is to support described high-strength high-modulus polyethylene fiber reinforced composite.The number of cross bar 24 equates with the group number of described spoke; The specific embodiment shown in Figure 2 has six roots of sensation cross bar 24.
Wind-up roll 2 in the specific embodiment shown in Figure 2 is a framework in essence, but its function is identical with the wind-up roll that is cylinder; In the case, " outer peripheral face " of described wind-up roll 2 means cross bar 24 outer surface of central rotating shaft 21 dorsad.Cross bar 24 outer surface of central rotating shaft 21 dorsad can be an arcwall face.
Wind-up roll 2 articulates with the wind-up roll bearing 11 of its central rotating shaft 21 with pedestal 1, therefore, can be further at the fixedly connected swing arm 4 of any end of central rotating shaft 21, by rotate swing arm 4 can so that wind-up roll 2 around its central rotating shaft 21 rotations.Adopt manual mode to drive wind-up roll 2 rotations comparatively flexibly, accurately, operate also very convenient.
Certainly, also can pass through 2 rotations of driven by motor wind-up roll, specific implementation this paper repeats no more.
Chopper and slicer provided by the present invention also comprises fastener.
Please refer to Fig. 3, Fig. 4 is the structural representation of a kind of specific embodiment of fastener provided by the present invention.
In a kind of specific embodiment, fastener provided by the present invention is arranged between first spoke 22 and second spoke 23 of any one group of spoke, described fastener specifically comprises first cross bar 241 and second cross bar 242, and both all are parallel to the central rotating shaft 21 of wind-up roll 2.First cross bar 241 and second cross bar 242 should keep suitable spacing, and both both ends are provided with fastening bolt 5 and fastening nut 6 respectively; Fastening bolt 5 runs through first cross bar 241 and second cross bar 242 simultaneously.
First cross bar 241 and second cross bar 242 should have suitable elasticity, so turn fastening nut 6 promptly can be adjusted the spacing of first cross bar 241 and second cross bar 242.
In fact, first cross bar 241 and second cross bar 242 are made the as a whole function that realizes cross bar 24,, can substitute any one cross bar 24 with first cross bar 241 and second cross bar 242 that is.
Can at first the end of described web-like high-strength high-modulus polyethylene fiber reinforced composite be inserted in the gap between first cross bar 241 and second cross bar 242, dwindle above-mentioned gap by turn fastening nut 6 then, the end of described web-like high-strength high-modulus polyethylene fiber reinforced composite can be fixedly connected on the outer peripheral face of wind-up roll 2, described high-strength high-modulus polyethylene fiber reinforced composite just can be wound in its outer peripheral face when therefore, wind-up roll 2 rotated.
Chopper and slicer provided by the present invention also comprises the cutter sweep (not shown).
The concrete form of described cutter sweep there is no too much restriction, if its can along the outer peripheral face of wind-up roll 2 and wind-up roll 2 axially on the shift position.Specifically, described cutter sweep can be conventional scissors, by operator's direct control; Described cutter sweep also can be conventional electric slicer, can move on predetermined track.
Also please refer to Fig. 1, slide plate 3 can be set above wind-up roll 2, slide plate 3 supports by support 13, thereby keeps its position.The middle part of slide plate 3 is provided with chute 31, and chute 31 is along the axial setting of wind-up roll 2.
Above-mentioned cutter sweep can be connected in the described chute 31, thereby affiliated cutter sweep can be along the axially reciprocating of wind-up roll 2 under the driving of external force.Specifically how to realize above-mentioned clamping, how to drive the content that described cutter sweep belongs to prior art, this paper repeats no more.
During sectioning, at first the free end of the web-like high-strength high-modulus polyethylene fiber reinforced composite of slice is fixedly connected on the outer peripheral face of wind-up roll 2 by described fastener, rotate wind-up roll 2 at least seven 120 degree then, thereby make the outer peripheral face of wind-up roll 2 twine two-layer described web-like high-strength high-modulus polyethylene fiber reinforced composite at least; At last by described cutter sweep axially the web-like high-strength high-modulus polyethylene fiber reinforced composite that its outer peripheral face twined is cut off along wind-up roll 2.Like this, one time cutting operation promptly can obtain at least two described polyethylene fiber reinforced compound materials, and therefore the effect frequency of sectioning will obtain remarkable must the raising.
Can further improve above-mentioned chopper and slicer.
Please refer to Fig. 4, Fig. 4 is the schematic side view of the another kind of specific embodiment of wind-up roll provided by the present invention.
As previously mentioned, the end of first spoke 22 is fixedlyed connected with an end of cross bar 24.Particularly, connecting hole 221 can be set at the end of first spoke 22, bolt 222 further is set in the connecting hole 221; First spoke 22 is fixedly connected in cross bar 24 by connecting hole 221 and bolt 222.Second spoke 23 is identical therewith with the connected mode of cross bar 2.This connected mode dismounting operation is fairly simple, convenient.
In order to adapt to the requirement of different section sizes, preferably can adjust the radius or the girth of wind-up roll 2 outer peripheral faces.
For this reason, can be further the cross section of connecting hole 221 be made as along wind-up roll 2 (direction shown in the arrow among Fig. 4) Long Circle of extending radially, with the spacing (in fact this spacing is exactly the spacing of bolt 222 and central rotating shaft 21) of adjusting cross bar 4 and central rotating shaft 21 easily, thereby satisfy different section dimensional requirements.
In addition, as shown in Figure 1, let off roll bearing 12 can also further be set, on pedestal 1 so that support the let off roll of described high-strength high-modulus polyethylene fiber reinforced composite.When being placed into let off roll in the let off roll bearing 12, described let off roll should parallel over against wind-up roll 2 and with wind-up roll 2, can guarantee that like this in the wrapup procedure of wind-up roll 2, described high-strength high-modulus polyethylene fiber reinforced composite can be wrapped in the outer peripheral face of wind-up roll 2 open and flatly.
Please refer to Fig. 5, Fig. 5 is the flow chart of a kind of specific embodiment of dicing method provided by the present invention.
In a kind of specific embodiment, the dicing method that is used to cut web-like high-strength high-modulus polyethylene fiber reinforced composite provided by the present invention may further comprise the steps:
Step S11 is fixedly connected on the free end of the web-like high-strength high-modulus polyethylene fiber reinforced composite of slice the outer peripheral face of wind-up roll.
Step S12 rotates described wind-up roll at least 720 degree, thereby makes the outer peripheral face of described wind-up roll twine two-layer described web-like high-strength high-modulus polyethylene fiber reinforced composite at least.
Step S13 is along axially cutting off the web-like high-strength high-modulus polyethylene fiber reinforced composite that its outer peripheral face twined of described wind-up roll.
By dicing method provided by the present invention, one time cutting operation promptly can obtain at least two described polyethylene fiber reinforced compound materials, and therefore the effect frequency of sectioning will obtain remarkable must the raising.
Please refer to Fig. 6, Fig. 6 is the flow chart of the another kind of specific embodiment of dicing method provided by the present invention.
In the another kind of specific embodiment, the dicing method that is used to cut web-like high-strength high-modulus polyethylene fiber reinforced composite provided by the present invention may further comprise the steps:
Step S21 is fixedly connected on the free end of the web-like high-strength high-modulus polyethylene fiber reinforced composite of slice the outer peripheral face of wind-up roll.
Step S22, adjustment is wound with the position of the let off roll of web-like high-strength high-modulus polyethylene fiber reinforced composite, and it is paralleled with described wind-up roll.
Step S23 rotates described wind-up roll at least 720 degree, thereby makes the outer peripheral face of described wind-up roll twine two-layer described web-like high-strength high-modulus polyethylene fiber reinforced composite at least.
Step S24 is along axially cutting off the web-like high-strength high-modulus polyethylene fiber reinforced composite that its outer peripheral face twined of described wind-up roll.
More than be used to cut web-like high-strength high-modulus polyethylene fiber reinforced composite chopper and slicer and dicing method is described in detail to provided by the present invention.Used specific case herein principle of the present invention and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of claim of the present invention.