CN2088005U - Vertical reinforcement bar hoop bender - Google Patents

Abstract

The utility model discloses a vertical reinforcement bar hoop bender, belonging to the technical field of construction machines. The vertical reinforcement bar hoop bender is composed of a machine frame, a vertical working disc, a chain wheel, a chain, gears, and a transmission system. The working disc is provided with a positioning mechanism (a positioning hole and a positioning pin), and the back face of the working disc is provided with a cam and a brake which can enable the working disc to be automatically reset. The utility model has the advantages that the positioning is convenient, and the angle of the bending of a reinforcement bar can be optionally adjusted within range of 0 to 180 DEG; the reset of the working disc can be automatically completed without the power; the material taking and material placing work of the working disc is safe in the static state; the power loss of the power is little.

Description

Vertical reinforcement bar hoop bender

The present invention relates to a kind of building machinery, be specially a kind of stirrup bender, can reinforcing bar bending hoop in 0-180 ° of scope is arbitrarily angled.

Reinforcing steel bar hoop bending machinery generally is made up of power, dynamic transfer system and several parts of work disk.Existing stirrup bender generally back and forth rotates work he dish by driver chuck linkage and gear drive, in the rotary course of disk, makes bar bending.The shortcoming of this mechanism is (1) drive train power loss height.(2) resetting of disk of work also needs power drive.(3) disk blowing work in rotation is dangerous.(4) the reinforcing steel bar hoop bending angle depends on the centre distance of connecting rod slider and driver chuck, adjusts cumbersome.

The design's purpose is to provide a kind of convenient bending hoop angle of regulating, the vertical type steel-bar hoop bender of work safety, and its design scheme is as follows:

Power drive system is taked one-level sprocket wheel and one-level gear drive, and a Clutch Control is arranged on the splined shaft between sprocket wheel and the gear, is rotated by gear driven work disk.Have along the pivoted housing of disk radiai adjustment on the work disk, and the adjustable alignment pin of outer circumference, the shelves flitch is fixed on the frame motionless, during operation, reinforcing bar is placed between grade flitch and the central post, starts motor, close clutch, axle sleeve rotates with the work disk.At this moment be fulcrum with the central post, the moment of torsion of shelves flitch and pivoted housing be power with bar bending, alignment pin is determining crooked angle, when bar bending during to predetermined angular, alignment pin is opened clutch, work disk and power disengaging.

Back side base bearing at the work disk has put a cam structure, this cam is connected with a wire spring, this cam rotates with the work disk spring is drawn back during work, once work disk and power break away from, the disk backward rotation of under the Hui Li of this spring, working, cam automatically resets the work disk jack-up skidding mechanism, so that at halted state material taking and blowing.

This device compared with prior art has the following advantages (1) location conveniently, can make bending hoop angle regulated at will in 0-180 ° of scope of reinforcing bar; (2) resetting of disk of work do not need power, finishes automatically; (3) the work disk is got material and blowing work safety in inactive state; (4) power attenuation of power is few.

Below in conjunction with the embodiment accompanying drawing this invention is described in further detail.

Fig. 1 is the vertical portion structure chart of vertical type steel-bar hoop bender, (double as Figure of abstract).

Fig. 2 is the front view of work disk.

Fig. 3 is the back view of work disk.

See that Fig. 1 vertical type steel-bar hoop machine is made up of work disk 11, dynamic transfer system 14 and the frame 19 that supports entire machine.Protruding the position referring to the center of Fig. 2 work disk is work top, outer 2 extends to all toothings, with the work top vertical direction some locating holes 3 are arranged on 2 circumference of outer, it is fixing that other has an alignment pin 29 can insert in arbitrary locating hole, and the determining positions of alignment pin the angle of bending hoop reinforcing bar.Work disk 11 is supported on the main shaft 8 of upper rack, and bearing 9 and bearing cover 10 are arranged between main shaft and disc centre, is fixed with central post 7 in disc centre near the work top direction, and the work disk can be the center rotation with main shaft 8 and central post 7.Front at the work disk has a recess-mounted pivoted housing axle and pivoted housing 4 along a radial direction, and can be along the fixing position of pivoted housing axle and pivoted housing of this groove radiai adjustment, the shelves flitch 5 that is positioned on the work top is fixed on the top of frame 12 by shelves material slide-bar and cover, is regulated the height of shelves flitch by regulating handle 1.

Dynamic transfer system is to be driven by motor 21, and motor is supported on the motor cabinet 20.The end of motor reel is fixed with minor sprocket 22, this minor sprocket drives hinge wheel 24 by chain 23, and the center fixation of hinge wheel 24 is at the left end of a splined shaft 12, splined shaft 12 is fixed on the middle part of frame again by bearing 25 and bearing support 27, be fixed with travelling gear 15 at the splined shaft other end, all gears of this travelling gear 15 and work disk outer are toe joint mutually.One jaw clutch 16 is arranged in the centre of splined shaft, this clutch is controlled its clutches by trip(ping) lever 17 by clutch fork 26, trip(ping) lever 17 is fixed on the frame 19 by fixed block 18 and fixed block 30, and the alignment pin 29 that is positioned at the work disc circumference in addition can bump out clutch by clutch collision block 28.

Brakes work disk the back referring to Fig. 3, Fig. 1, Brake Block 32 is fixed on the frame has braking slide-bar 31 in it, this slide-bar can slide up and down in Brake Block 32, and the lower end of slide-bar has a slip steamboat 34 its upper ends that brake block 33 and braking rubber brake rubber block 36 are arranged.Fix a cam 6 on the bearing cover 10 between work disk and the frame main shaft 8, a cam and a wire spring are fixed, and the other end of spring is fixed on the frame.But the slip steamboat 34 of brakes contacts with this cam and rolling on it.

During operation, between reinforcing bar centering post 7 that will bending hoop and the shelves flitch 5, determine the position of alignment pin 29 according to the angle of reinforcing bar needs bending hoop.Starter motor, and handle trip(ping) lever 17 and make clutch 16 closures, sprocket wheel rotates together by pivoted housing 4 fixing on spline shaft gear drive work disk and the disk.Making reinforcing bar is fulcrum with fixed central post, is that power makes reinforcing steel bar hoop bending with the moment of torsion of shelves flitch and pivoted housing, and when the bending hoop angle fixed to the top, alignment pin 29 is about to collide clutch collision block 28, makes clutch separation, cuts off the outer power of work disk immediately.The cam that is positioned on the bearing cover 10 draws back wire spring fixed thereon with the rotation of work disk the time, outside the work disk is losing during power, the disk backward rotation of under the effect of spring, working, cam is jack-up braking slide-bar 31 gradually, and give bigger frictional resistance of work disk by brake block and rafter glue brake rubber block, the work disk of making stops 4 in position, so that inactive state material taking and blowing.

Claims (2)

1, a kind of stirrup bender, contain the work disk, dynamic transfer system and a Vertical Rack, power transmission is to drive hinge wheel 24 by motor 21 through minor sprocket 22 and chain 23, hinge wheel links to each other with travelling gear 15 by splined shaft 12, work disk 11 outer week tooth with travelling gear 15 toe joint mutually, the center of work disk is fixed on the main shaft 8 of frame by bearing 9 and bearing cover 10, there is a jaw clutch at the middle part of splined shaft 12, it is characterized in that on the outer circumference of work disk some locating holes 3 and alignment pin 29 being arranged, this alignment pin can turn to the top when deciding angle with the work disk, alignment pin can collide clutch collision block 28, and jaw clutch is thrown off.

2, stirrup bender as claimed in claim 1, the bearing cover 10 that it is characterized in that work disk 11 back sides is a cam structure, but being fixed on, this cam jack-up on the frame work disk is played the braking slide-bar and the brake block of braking action, cam is fixedlyed connected with a wire spring 35, and the other end of spring 35 is fixed on the frame.