CN2031319U - Reinforcement stirrup bending machine - Google Patents

Abstract

The utility model belongs to the machining field of metallic fiber material, relating to a special equipment for bending the building steel bar spiral hoop. The utility model comprises a feeding chuck (2) and a bending angle mechanism (3). The bending angle mechanism (3) comprises a swing arm 9 (22), a shaft (24) which is arranged on the swing arm (22) and can do axial movement relative to the swing arm (22) and an inclined plane (27) contacted with the shaft (24). The swing arm (22) folds the steel bar at a certain angle when swinging and the shaft (24) ascends along the inclined plane (27) at the same time. The supporting pin on the shaft (24) bends the steel bar upward at a spiral angle. The reciprocating translation of the feeding chuck and the swinging movement of the swing arm are realized by the two groups of cam wheel and the swinging rod mechanism respectively.

Description

Reinforcement stirrup bending machine

The utility model relates to a kind of equipment of making reinforcing bar spiral hoop for building, belongs to the manufacture field of metal wire rod.

Polygon reinforcing bar spiral hoop is an achievement in research recently, is used among concrete column, the beam.It is compared with currently used discontinuous assembling reinforcement hoop has many advantages, particularly particularly outstanding aspect shock resistance.But up to the present the special equipment of this reinforcing bar spiral hoop does not also appear making.Still adopt manual method to bend now.

Task of the present utility model provides a kind of special equipment that bends regular polygon reinforcing bar spiral hoop.

Solution of the present utility model is: the reinforcing bar spiral hoop that is provided bends machine and is made up of frame, the feeding chuck that can do to move back and forth and transmission mechanism thereof, swing type reinforcing bar bent angle mechanism and transmission mechanism thereof, motor and speed reducer structure.The structure of said swing type reinforcing bar bent angle mechanism is as follows: it has a swing arm around the dead axle swing; Be equipped with in the end of swing arm one relatively swing arm make axially movable axle, this axle is vertical with feed direction, axle is provided with the fulcrum post that supports reinforcing bar; Also have in addition one with the contacted inclined-plane of axle that is located at above-mentioned swing arm end, in order to control the lift of spiral hoop.The transmission mechanism of above-mentioned said feeding chuck is identical with the transmission mechanism of swing type reinforcing bar bent angle mechanism, and all the connecting rod that matches by cam, with cam, the fork that links to each other with connecting rod and the screw mechanism of regulating the fork position of the fulcrum are formed.

The motor via reducer structure drives the cam rotation, and drives the fork swing by connecting rod, moves back and forth thereby drive the feeding chuck, and reinforcing bar is sent to swing type reinforcing bar bent angle mechanism off and on.The feeding chuck can adopt common reciprocating machine chuck or electromagnetic chuck.In like manner, the swing arm of swing type reinforcing bar bent angle mechanism swings back and forth under another organizes the drive of the transmission mechanism that cam, connecting rod and fork form.The every swing of swing arm once just with bar bending once.In the process of swing arm moment reinforcement, the axle that is located at the swing arm end axially rises along above-mentioned inclined-plane, again reinforcing bar is bent upwards an angle (being lead angle) by the fulcrum post that is located at the supporting reinforcing bar on this.The bending of reinforcing bar was synthesizing around two vertical axis bendings when in fact swing arm was swung.Above-mentioned feeding and bending hocket, and just reinforcing bar can be bent into required regular polygon spiral hoop.The angle (being the drift angle of regular polygon) of feed length (being the length of side of regular polygon) and swing arm swing is by the amplitude of fluctuation decision of the fork in the transmission mechanism.And the amplitude of fork swing can be regulated by the position that aforesaid screw mechanism changes the fork fulcrum.

Advantage of the present utility model is the size of the reinforcing bar spiral hoop that bends and shape is accurate, productivity ratio is higher.Owing to adopt the crooked thereby required power of swing less.In addition, because feed length and bent angle are adjustable, so can bend the regular polygon spiral hoop of different sizes and limit number.

Below in conjunction with accompanying drawing content of the present utility model is described in detail.

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the structure chart of feeding chuck.

Fig. 3 is the left view of Fig. 2.

Fig. 4 is the structure chart of swing type bent angle mechanism.

As shown in Figure 1, the reinforcing bar spiral hoop machine that bends is made up of the transmission mechanism 4 of frame 1, feeding chuck 2, bent angle mechanism 3, feeding chuck 2, transmission mechanism 5, motor 6 and the reduction box 7 of bent angle mechanism 3.The transmission mechanism 4 of feeding chuck 2 is made up of cam 8, follower link 10 and fork 11.One end and the connecting rod 10 of fork 11 are hinged, and the other end is that the shift fork structure links to each other with feeding chuck 2.When motor 6 rotated by reduction box 7 driving cams 8, follower link 10 moved back and forth, and drove fork 11 around its fulcrum 12 swings, thereby drove feeding chuck 2 along 13 reciprocating motions of the track on the frame 1.There are a chute 14 and slide block 15 in the middle part of fork 11, and fulcrum 12 is located on the slide block 15 and with feed screw nut 16 and is connected.Rotational lead screw 17 can make slide block 15 move along chute 14, and move thereupon the position of fulcrum 12, thereby can change the amplitude of fluctuation of fork 11, reaches the purpose of regulating feed length.The structure of bent angle transmission mechanism 5 is identical with the transmission mechanism 4 of feeding chuck.It is made up of cam 9, follower link 18, fork 19.During cam 9 rotations, fork 19 is around its fulcrum 20 swings.The position of fulcrum 20 is equally also regulated by leading screw 21, regulates the amplitude of fluctuation of fork 19 according to this.Drive a bent angle swing arm 22 during fork 19 swings around its fulcrum 23 swings, the vertical pivot 24 of its end is swung thereupon, makes reinforcing bar 25 bend to certain angle (being the drift angle of regular polygon) around fulcrum 23.Above-mentioned vertical pivot 24 is the ends that are sleeved on swing arm 22, there is an inclined-plane 27 its lower end, therefore, and when swing arm 22 drives vertical pivot 24 swings, vertical pivot 24 27 risings along the inclined-plane simultaneously rely on the fulcrum post 26 on the vertical pivot 24 again reinforcing bar 25 upwards to be bent an angle (being lead angle).After swing arm 22 repositions, 2 feedings again of feeding chuck, swing arm 22 is swung once more then, and so circulation just is bent into reinforcing bar 25 required regular polygon spiral hoop.

Above-mentioned feeding chuck 2 can adopt Fig. 2, structure shown in Figure 3.It has between a fixed nip 30 and movable clamp port 31, two jaws and is provided with reseting pressuring spring 32.An eccentric briquetting 33 is arranged above movable clamp port 31.When eccentric briquetting 33 can compress movable clamp port 31 or loosen during beat to the right or left.The beat of eccentric briquetting 33 utilizes stroke collision block 34,35 to control.

The concrete structure of bent angle mechanism 3 as shown in Figure 4.Swing arm 22 is made of L shaped two support arms 37,38, support plate 41 links into an integrated entity by securing member 42 and swing arm 22.The end of support arm 37 is provided with a ball pin 39, and inserts in the shift fork 40 of fork 19 upper ends.The end of support arm 38 is equipped with one can axially movable vertical pivot 24, and vertical pivot 24 contacts with swash plate 44 by the roller 43 of lower end.One end of swash plate 44 is hinged on the rack table, and its inclination angle can be regulated by screw rod 45.When fork 19 is swung left, drive swing arms 22 by ball pin 39 and swing left, so vertical pivot 24 as the force, swing arm fulcrum 23 bends reinforcing bar 25 as fulcrum.Simultaneously, vertical pivot 24 rises along swash plate 44 again, again reinforcing bar 25 is upwards bent an angle by the fulcrum post on the vertical pivot 24 26.When therefore, swing arm 22 is swung is to finish the drift angle of regular polygon spiral hoop and the bending work of lead angle simultaneously.

Claims (1)

1, a kind of reinforcing bar spiral hoop bends machine, it is characterized in that having:

(1) frame 1.

(2) the feeding chuck 2 that can do to move back and forth.

(3) swing type steel disk bent angle mechanism 3, it comprises

(31) swing arms 22 around dead axle 23 swings,

(32) be located at the swing arm end and relatively swing arm do axially movable spools 24,

(321) this axle 24 is vertical with feed direction,

(322) axle 24 is provided with the fulcrum post 26 of supporting reinforcing bar,

(33) with the swing arm end the axle 24 contacted inclined-planes 27,

(4) transmission mechanism 4 of feeding chuck 2, it comprises

(41) cam 8,

(42) connecting rod 10 that cooperates with cam 8,

(43) fork 11 that links to each other with connecting rod 10,

(44) screw mechanism of adjusting fork 11 position of the fulcrum,

(5) transmission mechanism 5 of swing type reinforcing bar bent angle mechanism 3, it comprises

(51) cam 9,

(52) connecting rod 18 that cooperates with cam 9,

(53) fork 19 that links to each other with connecting rod 18,

(54) screw mechanism of adjusting fork 19 position of the fulcrum,

(6) motor 16,

(7) reducing gear 7.

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