CN2468625Y

CN2468625Y - Machine for straightening and cutting steel bar

Info

Publication number: CN2468625Y
Application number: CN 00268912
Authority: CN
Inventors: 孟进礼; 卫青珍; 范明亮; 范宝兰
Original assignee: MACHINE FACTORY TAIYUAN HEAVY MACHINERY COLLEGE
Current assignee: MACHINE FACTORY TAIYUAN HEAVY MACHINERY COLLEGE
Priority date: 2000-12-29
Filing date: 2000-12-29
Publication date: 2002-01-02
Anticipated expiration: 2010-12-29

Abstract

The utility model relates to a machine for straightening and cutting steel bar, pertaining to technique field of steel bar processing machinery. The utility model is characterized in that a big belt pulley 19 and a straightening tube 20 are connected with a straight tooth type small gear 14 which can drive an eccentric shaft of a cutting mechanism; the cutting mechanism comprises an eccentric shaft, a swing stem, a pulling rod, a moving blade and a static blade which are all arranged on a cutting mechanism support 12 which can move on the stander; the reinforcing steel bar cutting function is finished through an eccentric connecting bar mechanism; the cutting mechanism is replaced through springs 25, 27, 7 and 17. The utility model has the advantages and active effects of simplified structure, small volume, light weight, low cost and flexible carrying. Compared with the similar machines, the utility model has one second volume, one third weight and one second cost.

Description

Concrete-bar straightening-cutting machine

The utility model belongs to the steel bar processing machinery technical field, is specifically related to a kind of concrete-bar straightening-cutting machine with bar straightening and cut-out.

At present, the concrete-bar straightening-cutting machine kind of using is more both at home and abroad, straightening, cut-out and transmission mechanism all are not quite similar, be that straightening and cutting mechanism are carried out work by two power drive systems drives respectively mostly, machine construction is more complicated all, bulky, weight is big, cost is high, the carrying not nimble.In " reinforcing steel bar machinery and give stress machinery service manual " book of publishing by China Construction Industry Press, GT3/8 shaped steel muscle aligning cutting-off device, adopted form by a motor drives straightening and cut-out two cover mechanisms, but its adopts is belt, bevel gear, and the multistage type of belt drive of roller gear, and the structure of machine is not simplified effectively.

The utility model purpose is for meeting the market requirement, and a kind of designs simplification is provided, volume is little, in light weight, cost is low, the nimble concrete-bar straightening-cutting machine of carrying.

The utility model purpose is achieved in that he is by the powered rotation system, straightening mechanism and cutting mechanism are formed, it is characterized in that motor is connected as a single entity with the straight-tooth pinion that can drive the rotation of cutting mechanism eccentric shaft by big belt pulley and the straightening drum that belt transmission drives, the facewidth of straight-tooth pinion is greater than the facewidth of the straight-tooth gear wheel that is meshed with it, the cutting mechanism that is driven by gear drive comprises eccentric shaft, fork, pull bar joins the moving knife bar that also can move with cutting with scissors mutually with fork in the slideway on the cutting mechanism bearing, unified all being installed in of cutting blade and ledger-plate can be on the cutting mechanism bearing that moves on the fixed frame slideway, the pull bar intermediate point is supported on the fulcrum on the cutting mechanism bearing, the one end is used for manual pulling, the other end can promote fork around its bearing pin swing, the fork upper end can contact with eccentric shaft, the lower end links by bearing pin and the cutting blade that can move up and down in the slideway on the cutting mechanism bearing, cutting blade is fixed on the lower end of moving knife bar, on the respective point on the cutting mechanism bearing, be equipped with three and can make pull bar, the spring of fork homing, on the respective point of fixed frame, the spring that can make cutting mechanism bearing homing is installed.

Advantage of the present utility model and good effect are that designs simplification, volume are little, in light weight, cost is low, carrying is nimble.The machine volume is 1/2 of an equipment of the same type, and weight is 1/3 of equipment of the same type, and cost is 1/2 of an equipment of the same type.

Description of reference numerals:

Fig. 1 is the utility model transmission work schematic diagram

Fig. 2 is that the A of cutting mechanism among Fig. 1 is to view

Among the figure: 1-motor 2-belt transmission 3-straight-tooth gear wheel 4-eccentric shaft

Tie point 7-spring on the 5-roller 6-cutting mechanism bearing

Tie point 10-moving knife bar on the 8-fork 9-fork

11-cutting blade 12-cutting mechanism bearing 13-ledger-plate

Slideway on the 14-straight-tooth pinion 15-frame

Tie point 17-spring on the 16-cutting mechanism bearing

Tie point 19-big belt pulley 20-straightening drum on the 18-frame

21-guider 22-reinforcing bar 23-roller 24-pull bar

Fulcrum 27-spring on the 25-spring 26-cutting mechanism bearing

Tie point 29-bearing pin on the 28-cutting mechanism bearing

Slideway 31-reinforcing bar section 32-reference column on the 30-cutting mechanism bearing

The embodiment explanation:

As Fig. 1, shown in Figure 2, the utility model architectural feature is that big belt pulley 19 is to be connected as a single entity with straightening drum 20 and straight-tooth pinion 14, cutting mechanism comprises eccentric shaft 4, pull bar 24, fork 8, moving knife bar 10, cutting blade 11 and ledger-plate 13 unified all being installed in can be on the cutting mechanism bearings 12 that slides on the slideway on the fixed frame 15, pull bar 24 intermediate points are supported on the fulcrum 26 on the cutting mechanism bearing 12, the other end is equipped with roller 23 can promote fork 8 around bearing pin 29 swings, fork 8 upper ends are equipped with roller 5 and contact with the off-centre of eccentric shaft 4, the lower end links by bearing pin 29 and the moving knife bar 10 that can move up and down in the slideway on the cutting mechanism bearing 12 30, and cutting blade 11 is fixed on the lower end of moving knife bar 10.Spring 27 1 ends are connected with pull bar 24, the other end is connected with tie point 28 on the cutting mechanism bearing 12, spring 25 1 ends are connected with fork 8, the other end is connected with fulcrum 26 on the cutting mechanism bearing 12, spring 7 one ends are connected with fork 8, the other end is connected with tie point 6 on the cutting mechanism bearing 12, and spring 17 1 ends are connected with tie point 16 on the cutting mechanism bearing 12, and the other end is connected with tie point 18 on the fixed frame.

When motor 1 drove big belt pulley 19 rotations by belt transmission 2, straightening drum 20 and straight-tooth pinion 14 rotated together, and at this moment, straightening mechanism can carry out straightening with reinforcing bar 22, and simultaneously, straight-tooth gear wheel 3 drives eccentric shafts 4 and rotates.When needs are sheared reinforcing bar, the right-hand member of pulling pull bar 24 turns right, the left end head of pull bar 24 is pushed fork 8 to upright position by roller 23 and is close to the reference column 32 that is fixed on the cutting mechanism bearing 12, at this moment, under the promotion of eccentric shaft 4 off-centre, by roller 5 fork 8 and moving knife bar 10 in the slideway 30 on cutting mechanism bearing 12, are driven cutting blade 10 and move downward, with the bar cutting in the ledger-plate 13.Because reinforcing bar 22 still travels forward non-stop in shear history, so shearing is servo-actuated, promptly in shear history, cutting mechanism bearing 12 rises with reinforcing bar 22-and travels forward.At this moment, the facewidth produces between cog axial slip (facewidth of straight-tooth pinion 14 is 2 to 2.5 times of straight-tooth wheel facewidth) less than the straight-tooth gear wheel 3 of the straight-tooth pinion facewidth that is meshed with it with straight-tooth pinion 14.When shearing is over, under spring 17 effects, cutting mechanism bearing 12 is returned to original position, under spring 27 effects, pull bar 24 is returned to dotted line position, under spring 25 effects, fork 8 is returned to dotted line position, under spring 7 effects, fork 8 drives on moving knife bar 10 and the cutting blade 11 and moves, and is returned to not clipped position.

Claims

1, a kind of concrete-bar straightening-cutting machine, be by motor, reducing gear, straightening mechanism and cutting mechanism are formed, it is characterized in that driving straightening drum (20) and the straight-tooth pinion (14) that is connected as a single entity with big belt pulley (19) by belt transmission (2) by motor (1), cutting mechanism comprises eccentric shaft (4), fork (8), pull bar (24) with fork (8) cut with scissors mutually the connection, the moving knife bar (10) that can in the slideway (30) on the cutting mechanism bearing (12), move, cutting blade (11) and ledger-plate (13) are all unified to be installed in can be on the cutting mechanism bearing (12) that slides on the slideway on the fixed frame 15, pull bar (24) intermediate point is supported on the fulcrum (26) on the cutting mechanism bearing (12), the other end is equipped with and can promotes the roller (23) of fork (8) around bearing pin (29) swing, fork (8) upper end be equipped with can with the contacted roller of eccentric shaft (5), the lower end links by bearing pin (29) and the moving knife bar (10) that can move in the slideway (30) on the cutting mechanism bearing (12), cutting blade (11) is fixed on the lower end of moving knife bar (10), spring (27) one ends are connected with pull bar (24), the other end is connected with tie point (28) on the cutting mechanism bearing (12), spring (25) one ends are connected with fork (8), the other end is gone up fulcrum (26) with cutting mechanism bearing (12) and is connected, spring (7) one ends are connected with fork (8), the other end is connected with tie point (6) on the cutting mechanism bearing (12), spring 17 1 ends are connected with tie point 6 on the cutting mechanism bearing 12, and the other end is connected with tie point 18 on the fixed frame.

2, concrete-bar straightening-cutting machine according to claim 1, it is characterized in that shearing follower is to make the facewidth of the facewidth of the axially movable straight-tooth gear wheel of between cog (3) less than straight-tooth pinion (14) with the straight-tooth pinion (14) that is fixed on the frame, can be connected with tie point 18 on the frame by spring 17 at the cutting mechanism bearing 12 that moves on the slideway on the fixed frame 15 simultaneously.

3, concrete-bar straightening-cutting machine according to claim 2, the facewidth that it is characterized in that straight-tooth pinion (14) are 2 to 2.5 times of straight-tooth gear wheel (3) facewidth.