CN102745556A - Mechanical expansion shaft of air control C-shaped rings - Google Patents
Mechanical expansion shaft of air control C-shaped rings Download PDFInfo
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- CN102745556A CN102745556A CN2012102688303A CN201210268830A CN102745556A CN 102745556 A CN102745556 A CN 102745556A CN 2012102688303 A CN2012102688303 A CN 2012102688303A CN 201210268830 A CN201210268830 A CN 201210268830A CN 102745556 A CN102745556 A CN 102745556A
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Abstract
The invention discloses a mechanical expansion shaft of air control C-shaped rings, which is used for metal and non-metal foil and a film-shaped coiled material and is suitable for production of an aluminium strip and foil. In order to solve the problem of compressibility of an expanded strip, no foundation in friction of an slope expansion block and low precision and structural strength in the existing gasbag type and slope-to-slope type mechanical expansion shaft, the invention provides a novel slope-to-round structure with automatically retracting capacity to replace the typical slope-to-slope old-fashioned structure; the novel slope-to-round structure comprises a main shaft pipe and an expansion mechanism; a plurality cone-shaped wedge pipes and a plurality of C-shaped rings are symmetrically sleeved on the expansion mechanism; and propulsion of the cone-shaped wedge pipes in opposite directions lead the C-shaped rings with a plurality of anti-skidding blades on the conical surface in a sleeving way to expand outward, so as to become secondary mechanical increasing force to tightly clamp a core rolling pipe. According to the invention, the slope-to-round structure is small in radial size, so that the strength of the expansion shaft is enhanced; the radial run-out error of the shaft is reduced due to disappearance of gaps between the blades and the shaft during the clamping; and the mechanical expansion shaft is applicable to the production for rolling thick pipe cores in wide roll width.
Description
Technical field
The present invention relates to a kind of gas control C shape circle mechanical type expanding shaft, belong to the technical field of metal and non-metal paper tinsel, membranaceous coiled material bundling processing axle.
Background technology
In metal and non-metal paper tinsel, membranaceous coiled material and aluminium strip, aluminium foil processing; Become big wide cut coiled material bundling the program of the finished product coiled material of different in width to be: will roll up the core pipe earlier and be through on the winding off spindle; Then with the bloated axle of different swelling modes and disalignment header structure, be clamped in and accomplish uncoiling between the folder axle of reel rotation and batch.
The winding off spindle that three kinds of versions are arranged at present, a kind of is that volume core pipe is through on the solid axle that does not have the breathing function, or has volume core pipe straight end-face key, clamps with nut.The method with volume core pipe tolerance clearance of dwindling this solid axle owing to utilize improves batches precision; The tooling cost of therefore rolling up the core pipe is high; It is contradiction that the gap is reduced with smoking axle light; It is usually used in carefully rolling up batching in the work of core pipe, wide cut rewinding, weak point be batch low precision, volume core pipe end is worn key, is inconvenient to roll up the adjustment centering and the operation of core pipe.
In order to improve the precision of this type winding off spindle, the applicant once declared two utility model patents, and the patent No. is respectively: ZL201020127985.1 ZL201020589518.0
A kind of in addition: be the bloated axle of air bag that the breathing function is arranged in the conventional use, its advantage is that volume core pipe adjustment centering is convenient, and weak point is the compressibility owing to gas, causes the coiled material radial runout in batching, thereby influences the raising of precision.Spindle tube circumference commonly used has the deep trouth of 5 to 12 elongated installation air bags; This does not have the intensity that has reduced axle with fixed attention; Own wt has strengthened again unsettledly to be taken out axle operation and makes the bending shaft distortion, also exists the axle tension force little in addition, skids with air bag gas leakage easily, problems such as the bar distortion does not bounce back expand.
In order to solve the deficiency that the bloated axle of above two kinds of structures exists, the not mechanical type expanding shaft of roll coil of strip core end key has appearred in the prior art, and for example: the patent No. is: 200620030689.3 utility models " High-accuracy Balling and Expanding Axle "; It adopts the typical structure of inclined-plane to the inclined-plane; The tension force of this class formation axle depends on the conformability that the slotted hole axial dimension is closed in every group of ramp blocks stub end size and the institute every assembly that will install, could guarantee that each ramp blocks can both participate in bloated outward; This makes tooling cost high; Ramp blocks itself does not have retraction function in addition, because there are tolerance clearance in bloated core and elongated main shaft, the shaft runout that therefore expands has influenced the raising of axle precision.This type inclined-plane is to the machinery of the ramp structure axle that expands, the radial dimension of piece is big because the inclined-plane expands, and has compressed the design space of the center diameter of axle, has influenced the expand raising of flexural strength of axle of this class formation.
Air bag in the top inflatable axle and mechanical type outer cone in the axle core that expands that expands has a common ground: be exactly execution above them bar and the inner cone inclined-plane piece that expands that expands be metallo-, or by the elastomeric material manufacturing.In order to obtain bigger tension force, will increase axial bars number, piece number in the manufacturing strengthening frictional area to the volume core bore that expanded, and this and increase the mutual contradiction of intensity of the axle that expands.For the internal diameter of the volume core pipe that expanded, they are that whoever does not destroy the radial friction contact of whose degree of finish face-to-face, are the swellings of no foundation and self-lock ability.Under the pulling of coiling tension, occur skidding, coiled material radial runout, plate face neglect and tightly neglect pine, end face staggered floor, speed and put forward the phenomenon of not coming up and happen occasionally.
Summary of the invention
According to above deficiency of the prior art; The technical matters that the present invention will solve is: a kind of gas control C shape circle mechanical type expanding shaft in the processing that batches that is specially adapted to extra heavy pipe core commonly used in aluminium strip, the paper tinsel processing, wide format is provided, rolls up the phenomenon that skidding appears in the core pipe when having avoided bundling.
The technical solution adopted for the present invention to solve the technical problems is: described gas control C shape circle mechanical type expanding shaft, and it is characterized in that: comprise spindle tube and the transmission side spindle nose, the active side spindle nose that are installed in the spindle tube two ends, spindle tube is set with awl wedge pipe group and meta pipe outward; The meta pipe is fixed on the middle part of spindle tube; Awl wedge pipe group symmetry is installed in the both sides of meta pipe, and awl wedge pipe group is formed by connecting at least two awl wedge pipes in order, and the front end of awl wedge pipe is a conical head; Conical head is towards the meta pipe; Be with C shape circle on the conical head, outermost awl wedge pipe is connected with spindle tube through connecting device, and outermost awl wedge pipe connects pneumatic pushing mechanism.
During use, can will roll up the core pipe at the either side of expanding shaft and put on, then expanding shaft hung on reel; Promote outermost awl wedge pipe and bore wedge Guan Zuxiang meta tube side to moving through pneumatic pushing mechanism, there is stopping of end face the C shape circle front that is enclosed within on the conical head, and internal diameter has the promotion of conical head; And thus one group promote one group; Impel the outer of C shape circle to expand, thereby accomplish fixing between spindle tube and the volume core pipe, can carry out bundling work.After bundling finishes, oppositely promote awl wedge pipe group again through air operated control, make it break away from the meta pipe, because C shape circle has retraction voluntarily, thereby make C shape circle external diameter break away from the internal diameter of volume core pipe.
Described pneumatic pushing mechanism comprises piston rod, cylinder and charge valve, is provided with the piston rod of left and right two symmetries in the spindle tube, captives joint with connecting device in the outer end of piston rod; Every piston rod at least one group of cylinder that be installed in series from outside to inside; Every group of cylinder is made up of two cylinder end caps and the cylinder piston between two cylinder end caps, and cylinder end cap is captiveed joint with spindle tube, and the cylinder piston is fixed through elastic spring and piston rod; The contact position of cylinder end cap and cylinder piston and piston rod, spindle tube all is equipped with seal ring; Charge valve is installed in the endoporus of transmission side spindle nose, and corresponding charge valve is provided with two pores in the transmission side spindle nose, two pores respectively with the spindle tube tube wall in free air diffuser, exhaust passage communicate; Free air diffuser, exhaust passage communicate with the chamber, two ends of cylinder inner casing piston respectively, and the spindle tube middle part is provided with free vent.Spindle tube itself is an axis, also is cylinder barrel.
Described connecting device is the straight pin that runs through outermost awl wedge pipe, and the corresponding circle pin is provided with strip hole on spindle tube.
Be provided with screw auxiliary connection groove in the described awl wedge pipe, two adjacent awl wedge pipes pass screw auxiliary connection groove through the screw auxiliary connection and link together.In the work, the wedge pipe unification of respectively boring of awl wedge pipe group is retreated, and, improved work efficiency with retraction and swelling that the shortest Stroke Control C shape is enclosed.
Described C shape enclose an end prolong the circle center position be extended with the circle key; Correspondence ring head key offers a circle keyway and on spindle tube, has at least one long keyway on the conical head of awl wedge pipe; A circle key of C shape circle passes a circle keyway and is installed in the long keyway of spindle tube; Awl wedge pipe and C shape are enclosed on spindle tube, can only move vertically and can not rotate.The length and the quantity of awl wedge pipe will be decided according to the length of rouleau fabric width degree and expanding shaft in the product.
Distance between a described circle key and the other end circle tail is 10-50mm; On the external diameter surface of C shape circle, be provided with Non-slip material, C shape ring cross-section is rounded, and at least one plane is perhaps arranged on circle; The external diameter of C type circle is less than the external diameter of pipe of awl wedge pipe, to store the retraction elasticity dynamics of self.
Said Non-slip material is made up of a plurality of continuous semi arches or concave station, and the spacing between adjacent semi arch or the concave station is 0.1-10mm.Through continuous semi arch or concave station, on C shape circle outside face, constituted numerous anti-skidding swords.Just in time opposite with the bloated axle of machinery on bloated axle of existing air bag and inclined-plane by the method that increases frictional area; The present invention is through changing the size of C shape circle external diameter; Make anti-skidding sword and volume core pipe closed contact, the inclined-plane through conical head has produced the secondary mechanical reinforcement to C shape circle, to produce the clamping force more than several tons; Under equal propelling thrust, the horizontal chucking degree of C shape circle is much more firm than large-area friction swelling.When practical application, Non-slip material can also adopt other shape of removing above-mentioned shape.
Evenly have a plurality of axial grooves on the conical head of said awl wedge pipe front end, the rear end of awl wedge pipe is provided with and the corresponding limit dais of conical head.Its purpose is in order an elastomeric space to be set for the C shape circle be enclosed within on the conical head, in order to the influence of the difference in internal diameters that overcomes volume core pipe to clamping force, make adjacent and volume core pipe that the internal diameter gap there are differences also can swelling, clip.In addition, this elastomeric space can be eliminated awl wedge pipe and spindle tube tolerance clearance again, thus the raising expanding shaft batch precision and reliability.
Described charge valve is installed in the mounting hole of transmission side spindle nose through circlip.Between the nose end of transmission side spindle nose and spindle tube free air diffuser, exhaust passage, be provided with the flat rubber cushion sealing of cambered surface.Wherein, Described charge valve is the two-position three way charge valve, comprises inflation spool, spool base, sealing column and spool spring, and sealing column is installed in the inflation spool through the spool spring and is positioned at the central hole of inflation spool; Inflation spool and the sealing of spool base are installed as one; The spool base is provided with block hole, and block hole is communicated with two pores in inflation spool annular seal space and the transmission side spindle nose, and the plane that the spool base contacts with the transmission side spindle nose is provided with air discharge duct and packing groove; Be provided with the ring seal plain cushion in the packing groove, the ring seal plain cushion is close to pore through the valve body spring.Two pores are connected with free air diffuser, the exhaust passage of spindle tube respectively, thereby realize filling, exitting with the centre hole with the inflation spool, make and fill, exit soon, compare more convenient to operate, quick with air sac breathing axle.
The length of said awl wedge pipe and with the number of configured of C shape circle combination, decide according to minimum fabric width degree and the length of expanding shaft that product is rolled up in the core pipe.
Except above-mentioned points, in this expanding shaft, what, the size of thrust of cylinder number of pistons, volume width of cloth diameter, weight and the compressed-air actuated size of carrying in batching according to expanding shaft are confirmed; Cylinder piston and cylinder end cap in the spindle tube preferentially adopt the engineering plastics processing and manufacturing, only are air bag 2/3 of the axles that expands thereby make the weight of this expanding shaft, and the alleviating to help reducing an of weight taken out the aerial bending of axle suspension, thereby helps the maintenance of a precision.The both ends of the surface of meta pipe are symmetrically arranged with same limit dais, in the middle of the meta pipe screw via hole are arranged, thereby fix through screw and spindle tube.Also the meta pipe can be set on the spindle tube, and directly promote to bore the awl wedge pipe of wedge Guan Zuzhong by an end of spindle tube to the other end, be to obtain bigger tension force, batches bigger coiled material, also can change air operated control into fluid control.
The beneficial effect that the present invention had is:
1, this gas control C shape circle mechanical type expanding shaft is rational in infrastructure, through in spindle tube, increasing the cylinder piston, can obtain bigger propelling thrust, realizes the one-time mechanical reinforcement;
2, on the conical head of awl wedge pipe C shape circle is set, this inclined-plane is to the chucking structure of circle, because radial dimension is little; Elongated spindle tube external diameter is big; Make that the bending resistance torsion stiffness of whole expanding shaft is big, the unique design of the C shape circle in this expanding shaft can produce the clamping force more than several tons; Realize the secondary mechanical reinforcement, can also repair simultaneously by the out of roundness of external diameter in the volume core pipe that expands;
3, the design of conical head, axial groove and internal diameter platform in the awl wedge pipe can be eliminated the tolerance clearance of awl wedge pipe and spindle tube, can balanced respectively roll up the influence of the difference in internal diameters of core pipe to clamping force simultaneously, thus the raising expanding shaft batch precision and reliability;
4, cylinder piston in the spindle tube and cylinder end cap adopt double containment, have improved the leak free reliability, are suitable for the occasion of anticyclonic pressure, long-time pressurize use;
5, the filling of expanding shaft, exhaust be with a hole, with at one end, and fill, the vent ratio air bag type expanded shaft is fast, the time lacks, and is easy to operate;
6, design of the present invention and processing lay particular emphasis on gauge members such as using spring, and are processed as the master with lathe, grinding machine, so efficient is high, precision is high, cost is low.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the block diagram of C shape circle among the present invention;
Fig. 3 is the sectional axonometric drawing of awl wedge pipe among the present invention;
Fig. 4 is the block diagram of spindle tube among the present invention;
Fig. 5 is the sectional axonometric drawing of outermost awl wedge pipe among the present invention;
Fig. 6 is the partial enlarged drawing at I position among Fig. 1;
Fig. 7 is the sectional axonometric drawing of inflation spool among Fig. 6;
Fig. 8 is the block diagram of spool base among Fig. 6.
Among the figure: 1, transmission side spindle nose; 1.1, pore; 1.2, pore; 2, spindle nose key; 3, outermost awl wedge pipe; 3.1, front end face; 3.2, the internal diameter platform; 3.3, axial groove; 3.4, the circle keyway; 3.5, screw auxiliary connection groove; 3.6, conical head; 3.7, external diameter of pipe; 3.8, the adjustment hole; 3.9, cylinder pin hole; 3.10, bore; 3.11, undercut; 4, straight pin; 5, strip hole; 6, screw auxiliary connection; 7, C shape circle; 7.1, semi arch; 7.2, anti-skidding sword; 7.3, the circle key; 7.4, the circle tail; 8, awl wedge pipe; 8.1, front end face; 8.2, the internal diameter platform; 8.3, axial groove; 8.4, the circle keyway; 8.5, screw auxiliary connection groove; 8.6, conical head; 8.7, external diameter of pipe; 8.8, the adjustment hole; 8.9, bore; 8.10, limit dais; 8.11, aft end face; 8.12, undercut; 9, spindle tube; 9.1, inwall; 9.2, free air diffuser; 9.3, the exhaust passage; 9.4, internal diameter end keyway; 9.5, the spindle tube external diameter; 9.6, strip hole; 9.7, the cylinder end cap fixed orifice; 9.8, long keyway; 9.9, free vent; 10, meta pipe; 11, volume core pipe; 12, active side spindle nose; 13, screw; 14, piston rod; 15, cylinder end cap; 16, elastic spring; 17, cylinder piston; 18, seal ring; 19, the flat rubber cushion of cambered surface; 20, charge valve; 20.1, the spool base; 20.1.1, air discharge duct; 20.1.2, the packing groove; 20.1.3, block hole; 20.2, the valve body spring; 20.3, circlip; 20.4, the inflation spool; 20.4.1, guiding surface; 20.4.2, turn to groove; 20.4.3, centre hole; 20.4.4, annular seal space; 20.5, sealing column; 20.6, the spool spring; 20.7, the ring seal plain cushion.
The specific embodiment
Below in conjunction with accompanying drawing embodiments of the invention are done and to be further described:
As shown in Figure 1, gas control C shape circle mechanical type expanding shaft comprises spindle tube 9; Spindle tube 9 two ends are separately installed with transmission side spindle nose 1, active side spindle nose 12 through spindle nose key 2, spindle tube 9 outer awl wedge pipe group and the meta pipes 10 of being set with, and meta pipe 10 is fixed on the middle part of spindle tube 9; The both ends of the surface of meta pipe 10 are symmetrically arranged with same limit dais; There is the screw via hole centre, and awl wedge pipe group symmetry is installed in the both sides of meta pipe 10, and awl wedge pipe group is formed by connecting at least two awl wedge pipes 8 in order; The front end of awl wedge pipe 8 is a conical head; Conical head is with C shape circle 7 towards meta pipe 10 on the conical head, straight pin 4 runs through outermost awl wedge pipe 3 and is connected with spindle tube 9 and pneumatic pushing mechanism.
During use; Can will roll up the core pipe at the either side of expanding shaft puts on; Then expanding shaft is hung on reel, promote outermost awl wedge pipe 3 through pneumatic pushing mechanism and move, make C shape enclose 7 swellings with awl wedge Guan Zuxiang meta pipe 10 directions; Thereby accomplish fixing between spindle tube 9 and the volume core pipe 11, can carry out bundling work.After bundling finished, the reverse again awl wedge pipe group that promotes made it break away from meta pipe 9, because the external diameter of C shape circle 7 less than the external diameter of pipe 8.7 of awl wedge pipe, itself has the characteristic of retraction voluntarily, thereby made C shape enclose the internal diameter that 7 external diameters have broken away from volume core pipe 11.
Wherein:
Pneumatic pushing mechanism comprises piston rod 14, cylinder and charge valve 20; Be provided with the piston rod 14 of left and right two symmetries in the spindle tube 9; Captive joint with straight pin 4 through screw 13 in the outer end of piston rod 14, every piston rod 14 at least one group of cylinder that be installed in series from outside to inside, and every group of cylinder is made up of two cylinder end caps 15 and the cylinder piston 17 between two cylinder end caps 15; Cylinder end cap 15 is captiveed joint with spindle tube 9 through fastener; Cylinder piston 17 is fixing with piston rod 14 through elastic spring 16, and cylinder end cap 15 and cylinder piston 17 all are equipped with seal ring 18 with the contact position of piston rod 14, spindle tube 9, and charge valve is installed in the endoporus of transmission side spindle nose 1; Corresponding charge valve is provided with two pores 1.1,1.2 (as shown in Figure 6) in transmission side spindle nose 1; Pore 1.1, pore 1.2 respectively with spindle tube 9 tube walls in free air diffuser 9.2, exhaust passage 9.3 communicate, free air diffuser 9.2, exhaust passage 9.3 communicate with the chamber, two ends of spindle tube 9 inner casing pistons respectively, spindle tube middle part is provided with free vent 9.9.Wherein, connecting device is the straight pin 4 that runs through outermost awl wedge pipe 3, and corresponding circle pin 4 is provided with strip hole 5 on spindle tube 9.Wherein, spindle tube 9 itself is an axis, also is cylinder barrel.
C shape coil structures is as shown in Figure 2, and C shape is enclosed an end and prolonged the circle center position and be extended with a circle key 7.3, and the distance between circle a key 7.3 and the other end circle tail 7.4 is 10-50mm, on the external diameter surface that C shape is enclosed, is provided with Non-slip material.Wherein, C shape ring cross-section is rounded, and at least one plane is perhaps arranged on circle, and the external diameter of C type circle can further increase and roll up the clamping force between the core pipe less than the external diameter of pipe 8.7 of awl wedge pipe 8 effectively when the swelling of C shape circle.Wherein, Non-slip material is made up of a plurality of continuous semi arches or concave station, and the spacing between adjacent semi arch or the concave station is 0.1-10mm, adopts semi arch 7.1 in the present embodiment, through continuous semi arch 7.1, on C shape circle outside face, has constituted numerous anti-skidding swords 7.2.Just in time opposite with the bloated axle of machinery on bloated axle of existing air bag and inclined-plane by the method that increases frictional area; The present invention is through changing the size of C shape circle external diameter; Make anti-skidding sword 7.2 and volume core pipe 11 closed contacts; Inclined-plane through conical head 8.6 has produced the secondary mechanical reinforcement to C shape circle, and under equal propelling thrust, the horizontal chucking degree of C shape circle is much more firm than large-area friction swelling.Non-slip material can also adopt other shape of removing above-mentioned shape.
Awl wedge tubular construction is as shown in Figure 3; The front end face of conical head 8.6 is towards meta pipe 10 in the awl wedge pipe 8; Offer an axial groove 8.3 and a circle keyway 8.4 on the conical head 8.6 of awl wedge pipe 8; A circle key 7.3 of C shape circle 7 is inserted in and passes a circle keyway 8.4 from front end face 8.1 and is installed in the long keyway 9.8 that spindle tube 9 offers; In awl wedge pipe 8, be provided with screw auxiliary connection groove 8.5, screw auxiliary connection 6 passes a circle key 7.3 of C shape circle, the neutral gear between the circle tail 7.4, through screw auxiliary connection groove 8.5 two adjacent awl wedge pipes 8 is linked together; For the elastomeric supporting of radially formation that makes conical head 8.6, conical head 8.6 madial walls are provided with internal diameter platform 8.2, the influence when in order to the difference in internal diameters that overcomes volume core pipe 11 C shape being enclosed 7 swellings; Stop in order to enclose 7 one for the C shape that is sleeved on the conical head 8.6; Impel its outer expanding; The aft end face 8.11 of corresponding awl wedge pipe 8 madial wall in its back-end is provided with limit dais 8.10; The degree of depth between aft end face 8.11 and the limit dais 8.10 has formed C shape and has enclosed the stroke of 7 breathing; Limit dais 8.10 madial walls have constituted one and have been used for cooperating the bore of installing 8.9 with the spindle tube external diameter 9.5 of spindle tube 9, and easy to use when connecting for screw auxiliary connection 6, corresponding screw auxiliary connection groove 8.5 is offering adjustment hole 8.8 and on awl wedge pipe 8 madial walls, offering undercut 8.12 on the awl wedge pipe 8.During use, two adjacent awl wedge pipes are linked together, the wedge pipe unification of respectively boring of awl wedge pipe group is retreated, and, improved work efficiency with retraction and swelling that the shortest Stroke Control C shape is enclosed through screw auxiliary connection 6.Through axial groove 8.3 and internal diameter platform 8.2; In promoting the chucking process; Can eliminate the tolerance clearance of awl wedge pipe 8 and spindle tube 9, also balanced simultaneously respectively roll up the influence of the difference in internal diameters of core pipe 11 to clamping force, that has also improved expanding shaft simultaneously batches precision and reliability.Wherein, the cone angle of the conical head 8.6 of awl wedge pipe 8 is greater than 27 °.
Outermost awl wedge tubular construction is as shown in Figure 5; Also comprise front end face 3.1, internal diameter platform 3.2, axial groove 3.3, a circle keyway 3.4, screw auxiliary connection groove 3.5, conical head 3.6, adjustment hole 3.8 and undercut 3.11; Different with other awl wedge pipes is; On outermost awl wedge pipe, be provided with cylinder pin hole 3.9, and external diameter of pipe 3.7 same internal diameters less than volume core pipe 11, bore 3.10 cooperates installation with the spindle tube external diameter 9.5 of spindle tube 9.
The spindle tube structure is as shown in Figure 4; Inwall 9.1 two ends of spindle tube 9 are provided with the internal diameter end keyway 9.4 that spindle nose key 2 usefulness are installed; Be provided with free air diffuser 9.2 and exhaust passage 9.3 in the tube wall of spindle tube 9; Also be provided with at least one long keyway 9.8 that cooperates with a C shape circle circle key 7.3 on the spindle tube, cooperate the strip hole 9.6 of radial symmetry also with straight pin 4 and fixedly mount the cylinder end cap fixed orifice 9.7 that cylinder end cap is used; Except above-mentioned points, also be provided with the free vent 9.9 that the spindle tube inner chamber communicates with ambient atmosphere on the spindle tube.
The length of said awl wedge pipe 8 and with the number of configured of C shape circle 13 combinations, decide according to minimum fabric width degree and the length of expanding shaft that product is rolled up in the core pipe 11.
Except above-mentioned points, in this expanding shaft, what, the size of thrust of cylinder piston 17 quantity, volume width of cloth diameter, weight and the compressed-air actuated size of carrying in batching according to expanding shaft are confirmed; Cylinder pistons 17 in the spindle tube 9 preferentially use the engineering plastics processing and manufacturing with cylinder end caps 15, only are 2/3 of bloated of air bags thereby make the weight of this expanding shaft, and the alleviating to help reducing an of weight taken out the aerial bending of axle suspension, thereby helps the maintenance of a precision.Also meta pipe 10 can be set on the spindle tube 9, and directly promote to bore the awl wedge pipe 8 of wedge Guan Zuzhong by an end of spindle tube 9 to the other end, be to obtain bigger tension force, batches bigger coiled material, also can change air operated control into fluid control.
The use and the principle of present embodiment are following:
(1) need swelling volume core pipe 11 and when needing work when expanding shaft:
The retracted state of as shown in Figure 1 is C shape circle mechanical type expanding shaft through on the expanding shaft, is put into volume core pipe 11 between the clamping conehead of reel to expanding shaft again, about adjustment roll up core pipe 11, make its both sides end face with the foil end face that will batch align.
The inflation of charge gun is chewed; The guiding surface 20.4.1 of the inflation spool 20.4 through two position three-way valve; Lean at gas filed centre hole 20.4.3 place, the projection of charge gun both sides is stuck in and turns in the groove 20.4.2 simultaneously, and 90 ° are rotated inflation spool 20.4 and pull charge gun; Gas is chewed and is penetrated the compressed air stream of a length by operator's control; The centre hole 20.4.3 of air communication gas overcharging spool 20.4 pushes sealing column 20.5 open and enters in the annular seal space 20.4.4, and enters in the free air diffuser 9.2 of spindle tube 9 through block hole 20.1.3, ring seal plain cushion 20.7.Air-flow enters into the left chamber of expanding shaft left side cylinder piston and the right chamber of right side cylinder piston by pore road 9.2.
Under the drive of expanding shaft both sides cylinder piston 17, both sides piston rod 14 promotes outermost awl wedge pipe 3 through straight pin 4, makes conical head 8.6 in a plurality of awl wedge pipes 8 push meta pipe 10 places of expanding shaft to.The C shape circle 7 that one circle encloses, under the promotion of conical head 3.6,8.6, tens on each C shape circle 7 is anti-skidding sword 7.2 along sword, along the axis propelling of volume core pipe 11, makes C shape enclose 7 external diameters and increases, and is that chisel edge laterally is clamped on the internal diameter of volume core pipe 11 at last.
Meanwhile, the right chamber and the left chamber gas of opposite side cylinder piston of expanding shaft left side cylinder piston are entered in the following air discharge duct 20.1.1 of two-position three way charge valve 20 spool bases 20.1 by the exhaust passage 9.3 of spindle tube 9, are discharged in the atmosphere and go.
(2) need exhaust when expanding shaft, when from volume core pipe 11, releasing expanding shaft:
After batching completion, 90 ° are rotated inflation spool 20.4 in the opposite direction, and pull charge gun; Gas is chewed and penetrated the compressed air stream of a length by operator's control, and is the same with fwd swelling air-flow, also is through the two-position three way charge valve; But changed individual direction; Entered in the exhaust passage 9.3, air-flow enters into the expand right chamber of axle left side cylinder piston and the left chamber of right side cylinder piston simultaneously, two outermost awl wedge pipes 3 of piston rod 14 last drives; And, drive each awl wedge pipe 8 and retreat to the left and right sides of axle through each screw auxiliary connection 6.
Meanwhile, the left chamber of expanding shaft left side cylinder piston, the gas that stops in the right chamber of expanding shaft right side cylinder piston is discharged in the atmosphere among the spool base air discharge duct 20.1.1 by the two-position three way charge valve 20 of Fig. 6 from former road and goes.
Because conical head 8.6 is drawn back, make C shape circle 7 break away from the promotion of conical head, the elasticity of itself bounces back voluntarily, has broken away from the internal diameter of volume core pipe 11, and operator can in the volume core pipe 11 that has the material volume, be released expanding shaft at any end of expanding shaft.
The outside promotion of two piston rods 14 overcomes the weight of expanding shaft self, and pulling is respectively bored the wedge pipe and retreated; Needed strength is very little; Under the situation of multi-cylinder piston combination, use a cylinder piston to participate in retraction less, can the save compressed air, and improve the retraction speed of expanding shaft.
Claims (10)
1. a gas control C shape is enclosed the mechanical type expanding shaft; It is characterized in that: comprise spindle tube (9) and be installed in transmission side spindle nose (1), the active side spindle nose (12) at spindle tube (9) two ends; Outer awl wedge pipe group and the meta pipe (10) of being set with of spindle tube (9), meta pipe (10) is fixed on the middle part of spindle tube (9), and awl wedge pipe group symmetry is installed in the both sides of meta pipe (10); Awl wedge pipe group is formed by connecting at least two awl wedge pipes (8) in order; The front end of awl wedge pipe (8) is conical head (8.6), and conical head (8.6) is with C shape circle (7) towards meta pipe (10) on the conical head (8.6); Outermost awl wedge pipe (3) is connected with spindle tube (9) through connecting device, and outermost awl wedge pipe (3) connects pneumatic pushing mechanism.
2. gas control C shape circle mechanical type expanding shaft according to claim 1; It is characterized in that: described pneumatic pushing mechanism comprises piston rod (14), cylinder and charge valve; Be provided with the piston rod (14) of left and right two symmetries in the spindle tube (9); Captive joint with connecting device in the outer end of piston rod (14); Every piston rod (14) at least one group of cylinder that be installed in series from outside to inside; Every group of cylinder is made up of two cylinder end caps (15) and the cylinder piston (17) that is positioned between two cylinder end caps (15), and cylinder end cap (15) is captiveed joint with spindle tube (9), and cylinder piston (17) is fixing through elastic spring (16) and piston rod (14); Cylinder end cap (15) and cylinder piston (17) all are equipped with seal ring (18) with the contact position of piston rod (14), spindle tube (9); Charge valve (20) is installed in the endoporus of transmission side spindle nose (1), and corresponding charge valve (20) is provided with two pores (1.1), (1.2) in transmission side spindle nose (1), two pores (1.1), (1.2) respectively with spindle tube (9) tube wall in free air diffuser (9.2), exhaust passage (9.3) communicate; Free air diffuser (9.2), exhaust passage (9.3) communicate with the chamber, two ends of cylinder inner casing piston (17) respectively, and spindle tube (9) middle part is provided with free vent (9.9).
3. gas control C shape circle mechanical type expanding shaft according to claim 1 and 2; It is characterized in that: described connecting device is the straight pin (4) that runs through outermost awl wedge pipe (8), and corresponding circle pin (4) is provided with strip hole (9.6) on spindle tube (9).
4. gas control C shape circle mechanical type expanding shaft according to claim 1; It is characterized in that: be provided with screw auxiliary connection groove (3.5) in the described awl wedge pipe (8), adjacent two awl wedge pipes (8) pass screw auxiliary connection groove (3.5) through screw auxiliary connection (6) and link together.
5. gas control C shape circle mechanical type expanding shaft according to claim 1; It is characterized in that: described C shape circle (7) one ends prolong the circle center position and are extended with a circle key (7.3); Correspondence ring head key (7.3) offers a circle keyway (8.4) and on spindle tube (9), has at least one long keyway (9.8) on the conical head (8.6) of awl wedge pipe (8), a circle key (7.3) of C shape circle passes a circle keyway (8.4) and is installed in the long keyway (9.8) of spindle tube.
6. gas control C shape circle mechanical type expanding shaft according to claim 5, it is characterized in that: the distance between a described circle key (7.3) and the other end circle tail (7.4) is 10-50mm, on the external diameter surface of C shape circle (7), is provided with Non-slip material.
7. gas control C shape circle mechanical type expanding shaft according to claim 6, it is characterized in that: said Non-slip material is made up of a plurality of continuous semi arches or concave station, and the spacing between adjacent semi arch or the concave station is 0.1-10mm.
8. gas control C shape circle mechanical type expanding shaft according to claim 1; It is characterized in that: evenly have a plurality of axial grooves (8.3) on the conical head (8.6) of said awl wedge pipe (8) front end; On the inwall of conical head (8.6), be provided with an internal diameter platform (8.2), the rear end of awl wedge pipe (8) is provided with limit dais (8.10).
9. gas control C shape circle mechanical type expanding shaft according to claim 2, it is characterized in that: described charge valve (20) is installed in the mounting hole of transmission side spindle nose (1) through circlip (20.3).
10. according to claim 2 or 9 described gas control C shape circle mechanical type expanding shafts; It is characterized in that: described charge valve (20) is the two-position three way charge valve; Comprise inflation spool (20.4), spool base (20.1), sealing column (20.5) and spool spring (20.6); Sealing column (20.5) is installed in the inflation spool (20.4) through spool spring (20.6) and is positioned at the centre hole (20.4.3) of inflating spool (20.4) and locates; Inflation spool (20.4) is installed as one with spool base (20.1) sealing; Spool base (20.1) is provided with block hole (20.1.3); Block hole (20.1.3) is communicated with two pores (1.1) (1.2) in inflation spool annular seal space (20.4.4) and the transmission side spindle nose (1); The plane that spool base (20.1) contacts with transmission side spindle nose (1) is provided with air discharge duct (20.1.1) and packing groove (20.1.2), is provided with ring seal plain cushion (20.7) in the packing groove (20.1.2), and ring seal plain cushion (20.7) is close to pore through valve body spring (20.2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210268830.3A CN102745556B (en) | 2012-07-31 | 2012-07-31 | Mechanical expansion shaft of air control C-shaped rings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210268830.3A CN102745556B (en) | 2012-07-31 | 2012-07-31 | Mechanical expansion shaft of air control C-shaped rings |
Publications (2)
| Publication Number | Publication Date |
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| CN102745556A true CN102745556A (en) | 2012-10-24 |
| CN102745556B CN102745556B (en) | 2014-09-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210268830.3A Expired - Fee Related CN102745556B (en) | 2012-07-31 | 2012-07-31 | Mechanical expansion shaft of air control C-shaped rings |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103738757A (en) * | 2014-01-28 | 2014-04-23 | 江阴市申港电讯器材厂 | Air expansion sleeve |
| CN104787624A (en) * | 2014-01-22 | 2015-07-22 | 株式会社东伸 | Winding shaft of sheets, winding method of sheets with a low tension, and air tight structure of piston used for such the winding method |
| CN112607499A (en) * | 2021-01-06 | 2021-04-06 | 重庆赛铃科技有限公司 | Rotating shaft with braking function and pay-off device with rotating shaft |
| CN112722988A (en) * | 2021-01-06 | 2021-04-30 | 重庆赛铃科技有限公司 | Linkage shaft for cable reel and cable unfolding lifting device |
| CN114251346A (en) * | 2020-09-23 | 2022-03-29 | 日星机械工业株式会社 | Friction shaft structure |
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| CN202729475U (en) * | 2012-07-31 | 2013-02-13 | 柳燕明 | Air control C-shaped circle mechanical expansion and shrink shaft |
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| CN2560614Y (en) * | 2002-07-12 | 2003-07-16 | 宋伯祥 | Spliced expanding block pneuamtic friction taking-up axle |
| CN2734703Y (en) * | 2004-10-29 | 2005-10-19 | 西南铝业（集团）有限责任公司 | Aluminium foil cutting and winding expand axle |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104787624A (en) * | 2014-01-22 | 2015-07-22 | 株式会社东伸 | Winding shaft of sheets, winding method of sheets with a low tension, and air tight structure of piston used for such the winding method |
| TWI642613B (en) * | 2014-01-22 | 2018-12-01 | 日商東伸股份有限公司 | Sheet pick-up reel, low tension sheet pick-up method, and airtight structure of piston for executing the low tension sheet pick-up method |
| CN103738757A (en) * | 2014-01-28 | 2014-04-23 | 江阴市申港电讯器材厂 | Air expansion sleeve |
| CN114251346A (en) * | 2020-09-23 | 2022-03-29 | 日星机械工业株式会社 | Friction shaft structure |
| CN112607499A (en) * | 2021-01-06 | 2021-04-06 | 重庆赛铃科技有限公司 | Rotating shaft with braking function and pay-off device with rotating shaft |
| CN112722988A (en) * | 2021-01-06 | 2021-04-30 | 重庆赛铃科技有限公司 | Linkage shaft for cable reel and cable unfolding lifting device |
| CN112722988B (en) * | 2021-01-06 | 2022-11-15 | 国网甘肃省电力公司金昌供电公司 | Linkage shaft for cable reel and cable unfolding lifting device |
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|---|---|
| CN102745556B (en) | 2014-09-24 |
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Address after: 072750 Hebei Zhuozhou Huabei Aluminum Co., Ltd. retirement Office Applicant after: Liu Yanming Address before: 301, room 1, unit 215, building No. 136, South Gate Street, Zhuozhou, Baoding, Hebei 072750, China Applicant before: Liu Yanming |
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