CN2743059Y

CN2743059Y - Eccentric cutting mechanism of reinforced bar clip bending machine

Info

Publication number: CN2743059Y
Application number: CN 200420085684
Authority: CN
Inventors: 陈振东
Original assignee: Tianjin Jianke Mechanical Products Co Ltd
Current assignee: Tianjin Jianke Mechanical Products Co Ltd
Priority date: 2004-11-29
Filing date: 2004-11-29
Publication date: 2005-11-30
Anticipated expiration: 2014-11-29

Abstract

The utility model discloses an eccentric cutting mechanism of a reinforced bar clip bending machine, which relates to an anti-reinforced bar clip bending machine, particularly an improvement for the cutting mechanism of the reinforced bar clip bending machine. An electric motor of the utility model is fixed at the upper part of a shearing base through a bolt. The rotor of the electric motor is connected with an eccentric axis by keys. The eccentric axis is fixed at the upper part of the shearing base through a bearing. The eccentric end of the eccentric axis is rotatablely fixed at the upper end of a support arm. The lower end of the support arm can be rotatablely supported at the end part of a shearing arm. The other end of the shearing arm is fixed at the lower part of the shearing base. A movable bit tool is fixed in a lying knife slit opened in the shearing arm. A dead knife is fixed at the lower end of the stationary base. The shearing surface of the movable bit tool can be matched with the outlet thread surface of the dead knife tightly. The stationary base can be fixed at the lower part of the shearing base by bolts. The utility model simplifies complicated driving devices, such as tooth gears, etc. The utility model decreases equipment cost and greatly enhances work efficiency.

Description

The centering type shut-off mechanism of stirrup bender

Technical field

The utility model relates to a kind of to stirrup bender, particularly the improvement that the shut-off mechanism of stirrup bender is carried out.

Background technology

Under the situation of building industry fast development at present, people are increasing to the demand of reinforcing bar, so reinforcing bar processing enterprise is more and more higher to the requirement of reinforcing bar working (machining) efficiency.Stirrup bender is a kind of important steel bar processing machinery, under standing state, the shut-off mechanism of stirrup bender mainly adopts two kinds of structures: the one, and hydraulic cutter mechanism, though adopt this kind cutting mechanism simple in structure, easy to operate, but the greatest problem of its existence is that action is insensitive, and inefficiency obviously can not satisfy steel bar processing machinery and produce high efficiency requirement; Another kind is electronic cutting mechanism, and it mainly is to drag corresponding gear drive by a motor, further drags two cover tool rest mechanisms more respectively and does relative motion simultaneously, finishes the shearing to reinforcing bar.Though above-mentioned electronic mode high efficiency, but owing to need make two tool rests make move toward one another simultaneously, make the structure of the cutting mechanism complexity very that becomes, make maintenance to the machinery more complicated that becomes, and not only increased mechanical cost, also increased the processing cost of reinforcing bar simultaneously.

Technology contents

The purpose of this utility model is by a kind of centering type shut-off mechanism of stirrup bender is provided, the operating efficiency of stirrup bender shut-off mechanism is greatly improved, more make its structure obtain simplifying, reduced the cost of above-mentioned machinery, and then solved the problem that exists in the above-mentioned background technology.

The purpose of this utility model realizes in the following manner: in the centering type shut-off mechanism of described stirrup bender, motor is by the top of bolting in the shearing base, the rotor of described motor is connected with key with eccentric shaft, and eccentric shaft is by the top of bearing fixing in the shearing base; The rotating upper end of being fixed in support arm of the eccentric end of eccentric shaft; The rotating end that is supported in shear arm, the lower end of support arm; The other end of described shear arm is fixed in the bottom of shearing base; Movable cutter head is fixed in the cutter groove of leaving in the shear arm for sleeping in, and dead knife is fixed in the lower end of firm banking, and the shear surface of described movable cutter head can closely cooperate with the wire vent face of dead knife; Firm banking can bolting in the bottom of shearing base.

The lower end of described support arm is provided with fixing hole, can be by bearing pin with the rotating connection hole of being fixed in described shear arm end, the lower end of support arm.

The upper end of described support arm can be fixed in the eccentric end of described eccentric shaft by bearing or copper sheathing.It can swing up and down along with the rotation of eccentric shaft.

The lower end of described support arm axially is connected by bearing pin with the end of shear arm, and the other end of shear arm can pass through fixed axis, is fixed in the through hole that is provided with under the firm banking.

Be provided with in the described firm banking and described rotor dead knife silk rolling hole in the same way, reinforcing bar can pass this silk rolling hole.

In above-mentioned syndeton, in fact described support arm plays the effect of connecting rod, when support arm swings up and down with the running of eccentric shaft, can drive shear arm is that fulcrum is swung with the fixed axis, and then can drive relative the moving up and down of movable blade generation that is arranged at the shear arm other end, and jointly the reinforcing bar that passes dead knife silk rolling hole is sheared with the dead knife that is fixed in the firm banking lower end.

Said structure of the present utility model has omitted complicated transmission mechanisms such as gear, makes the structure of stirrup bender cutting mechanism more simple, and the maintenance of equipment and maintenance process are greatly simplified, and have reduced the cost of equipment.Simultaneously, owing to adopted electronic cutting mechanism, the operation of equipment is more simplified, operating efficiency greatly improves than the hydraulic cutter mechanism in the background technology.

Description of drawings

Accompanying drawing 1 is the structural representation of a kind of embodiment of the utility model;

Accompanying drawing 2 is the right view of accompanying drawing 1.

In the accompanying drawing, the through hole 12 of eccentric shaft 1, eccentric end 2, bearing 3, support arm 4, fixing hole 5, support arm fixing hole 6, pivot pin 7, shear arm 8, shear arm connecting hole 9, shear arm fixed axis 10, firm banking 11, firm banking, crouch cutter groove 13, movable cutter head 14, movable cutter head shear surface 15, dead knife 16, dead knife wire vent face 17, reinforcing bar 18, dead knife silk rolling hole 19, motor 20, bolt 21, shearing base 22, key 23, bearing 24, bolt 25, bolt 26, macropore 27.

Embodiment

Below in conjunction with accompanying drawing a kind of embodiment of the present utility model is specified.

Embodiment:

As shown in drawings, motor 20 is fixed in the top of shearing base 22 by bolt 21.The rotor of described motor is connected with key 23 with eccentric shaft 1, realizes that motor drags the rotation of eccentric shaft.Described eccentric shaft is fixed in the macropore 27 of shearing base top by bearing 24.The eccentric end 2 of eccentric shaft is stretched out outside the described shearing base, and is supported in by bearing 3 in the fixing hole 5 of vertically disposed support arm 4 upper ends.

The other end of described support arm is connected with pivot pin 7 with the shear arm connecting hole 9 of horizontally disposed shear arm 8 ends by support arm fixing hole 6, and is supported in this tie point.Above-mentioned pin connected construction, can make support arm and/or shear arm is that the strong point relatively rotates with this tie point.

The other end of described shear arm is fixed in the through hole 12 of firm banking by shear arm fixed axis 10.Have the cutter groove 13 that crouches in the described shear arm, movable cutter head 14 can conventional mode be fixed in this cutter groove for sleeping in.

The structure of firm banking 11 and shape as shown in drawings, it can bolt 25 be fixed in the bottom of described shearing base, its middle part is provided with a horizontally disposed dead knife silk rolling hole 19 of running through firm banking, processed reinforcing bar 18 can pass this hole.

In the outside of firm banking, be fixed with dead knife 16 with bolt 26, dead knife wire vent face 17 can be corresponding with movable cutter head shear surface 15.

During work, the driven by motor eccentric shaft rotates, and swings up and down thereby drive support arm.When support arm is upwards swung, the movable blade that is fixed in the shear arm other end is moved downward, and shear the reinforcing bar that stretches out in the dead knife silk rolling hole jointly with dead knife.After finishing shear action, eccentric shaft can continue to drive support arm and move downward, and then drives movable blade and move upward, and forms the edge of a knife again, waits for that reinforcing bar enters the edge of a knife once more, repeats next shear action.

Claims

1. the centering type shut-off mechanism of stirrup bender, motor in the top of shearing base, is characterized in that the rotor of described motor is connected with key with eccentric shaft by bolting; Eccentric shaft is by the top of bearing fixing in the shearing base; The rotating upper end of being fixed in support arm of the eccentric end of eccentric shaft; The rotating end that is supported in shear arm, the lower end of support arm; The other end of described shear arm is fixed in the bottom of shearing base; Movable cutter head is fixed in the cutter groove of leaving in the shear arm for sleeping in, and dead knife is fixed in the lower end of firm banking, and the shear surface of described movable cutter head can closely cooperate with the wire vent face of dead knife; Described firm banking can bolting in the bottom of shearing base.

2. the centering type shut-off mechanism of stirrup bender according to claim 1 is characterized in that the lower end of described support arm is provided with fixing hole, can be with the rotating connection hole of being fixed in described shear arm end, the lower end of support arm.

3. the centering type shut-off mechanism of stirrup bender according to claim 1 is characterized in that the upper end of described support arm can be by bearing or the rotating eccentric end that is fixed in described eccentric shaft of copper sheathing.

4. the centering type shut-off mechanism of stirrup bender according to claim 1, the lower end that it is characterized in that described support arm can axially be connected by bearing pin with the end of shear arm, the other end of shear arm can pass through fixed axis, is fixed in the through hole that is provided with under the firm banking.

5. the centering type shut-off mechanism of stirrup bender according to claim 1 is characterized in that being provided with in the described firm banking and described rotor dead knife silk rolling hole in the same way, and reinforcing bar can pass this silk rolling hole.