CN200991736Y

CN200991736Y - Automatic reinforcing-bar cutting machine

Info

Publication number: CN200991736Y
Application number: CN 200620160109
Authority: CN
Inventors: 项顺林
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-11-29
Filing date: 2006-11-29
Publication date: 2007-12-19
Anticipated expiration: 2016-11-29

Abstract

The utility model relates to an automatic reinforcing steel bar cutter which comprises a crank, a connecting bar, a cut head arranged on the connecting bar, and a control device. One end of the crank is connected with a belt pulley; the center of the belt pulley is provided with a shaft housing; the shaft housing and the end of the crank are sleeved with a spring; one end of the spring is fixed on the end of the crank while the other end is connected with an electromagnet. The utility model solves the problem of the automatic control of any spot when cutting. The utility model has the advantages of compact structure, light attack and little abrasion which can realize automatic on-off control of any position and can be widely applied to the control of cutters and to the field of automatic on-off control of tiny punches.

Description

A kind of automatic bar cropper

Technical field

The utility model relates to a kind of reinforcing bar automatic disconnecting device, and particularly a kind of crankshaft connecting rod system that utilizes is realized the device that automatic clutch cuts off.

Background technology

At present, bar cutting equipment comprises and manual cut and cut automatically, mostly is crankshaft connecting rod system greatly on the cutting apparatus market automatically, and because of loading and unloading with cut off scale and need temporary parking, the interruption and the joint of its driving force are realized by clutch.Existing bar cropper comprises bent axle, and connecting rod is installed in the cutter head on the connecting rod, and the control device composition, the general use of bent axle clutch for clutch control rolled key, cross bar key, modes such as tooth edge realize clutch for clutch control, and this wherein also comprises many small-sized punch press automatic punching machine devices, and the weak point of its existence is, not only active force is concentrated inadequately, and because speed discrepancy is bigger, easily cause brinelling, and in a week, can only on set point, realize clutch for clutch control, be difficult to realize automation, in real time control.

Summary of the invention

Its purpose of the utility model just is to provide a kind of automatic bar cropper, has compact conformation, impacts for a short time, and it is low to wear and tear, and the characteristics of long service life can realize the automatic clutch control of optional position.

The technical scheme that realizes above-mentioned purpose and take is: comprise bent axle, the eccentric part of bent axle one end is installed connecting rod, crankshaft two end connects housing through bearing block, last connecting rod connects the lower link that cutter head is equipped with in the bottom through universal joint, the bent axle other end connects the transmission device of being made up of belt and motor through belt pulley, and control device is formed, the described belt pulley center connecting bushing that is installed on the bent axle, the end of axle sleeve and bent axle is with spring, spring one end is fixed on the bent axle end, the spring other end connects electromagnet, spring to screw direction consistent with the direction of belt pulley rotation.

Compared with prior art the utlity model has following advantage:

1,, thereby have the characteristics little, that wearing and tearing are low of impacting because the clutch design of having adopted the flat wire spring to hold axle sleeve tightly and unclamp axle sleeve, and the automatic clutch control of joining and can realize the optional position with electromagnet.

2, owing to adopted the fixedly connected bent axle of flat wire spring one end, an end connects the structural design of electromagnet, thereby has compact conformation, and can realize automatic control, and is simple, convenient.

3,, thereby have the automaticity height owing to the interlock control of having adopted travel switch and electromagnet, and equipment handling safety, reliable, long service life, simple in structure, cost is low, is easy to safeguard.

Description of drawings

The utility model is described in further detail below in conjunction with accompanying drawing.

Fig. 1 is this apparatus structure principle schematic;

Fig. 2 is this device control device electrical schematic diagram.

Specific embodiments

Its structure of this device embodiment as shown in Figure 1, comprise bent axle 6, the eccentric part of bent axle 6 one ends is installed connecting rod 5, crankshaft two end connects housing 10 through bearing block 7, last connecting rod 5 connects the lower link 8 that cutter head 13 is equipped with in the bottom through universal joint, bent axle 6 other ends connect the transmission device of being made up of belt 16 and motor 17 through belt pulley 4, and control device, the described belt pulley 4 center fixation connecting bushings 3 that are installed on the bent axle 6, the end of axle sleeve 3 and bent axle 6 is with spring 1, spring 1 one ends are fixed on bent axle 6 ends, and spring 1 other end connects electromagnet 2, spring 1 to screw direction consistent with the direction of belt pulley 4 rotations.

Described spring 1 is a flat wire spring 1, is enclosed within outside axle sleeve 3 and the bent axle 6, and the one end is fixed on the bent axle 6, and the other end connects electromagnet 2, and its rotation direction and belt pulley 4 rotation directions are consistent.

Be socketed with stage clip 9 on the described lower link 8, stage clip 9 is enclosed within on the lower link 8, and an end is fixed on housing 10 and lower link 8 bayonet socket positions, is parked in top dead centre when making bent axle 6 static.

Side at housing 10 connects right angle track 12, right angle track 12 is vertical with lower link 8 directions of motion, and correspondence is installed in material mouthful 15 positions, the travel switch 11 of adjustable position is installed on the right angle track 12, and join with control device, can realize that any scale cuts, and realize cutting off automatically the reinforcing bar that any scale requires with electromagnet 2 control interlocks.

In housing 10, corresponding to the position of last cutter head 13, its lower end is equipped with lower cutter 14, is easier to cut off.

Described device is horizontal to be installed on the pedestal, and the reinforcing bar that from front to back impulsive force will have been cut off when utilizing cutter head to cut off hits the right angle track, and the travel switch 11 that at this moment is installed on the right angle track is closed once more, prepares for cut off next time.

Described control device comprises travel switch K1 and electromagnet K4, it controls electric principle as shown in Figure 2, civil power is exported one the tunnel connect triode V2 colelctor electrode after resistance R 3 through connecing triode V1 triode V1 colelctor electrode behind the travel switch K1 through its control end after rectification, the filtering, and connect the controllable silicon T control utmost point, another road connects triode V2 base stage behind resistance R 4, R5, controllable silicon T anode connects civil power behind electromagnet K4.

Its operation principle

After starting, motor 17 rotates, drive belt pulley 4 and axle sleeve 3 rotations through belt 16, electromagnet 2 not energisings this moment, an end of flat wire spring 1 is blocked in the activity glossoptosis of electromagnet 2, since flat wire spring 1 to screw the direction that direction and belt pulley 4 rotate consistent, this moment the flat wire spring 1 firmly by pine, be in releasing orientation, belt pulley 4 drives axle sleeve 3 and rotates on bent axle 6, and this moment, bent axle 6 remained static.

When the reinforcing bar of being cut is entered between cutter head 13 and the lower cutter 14 from left to right by material mouth 15, arrive on the right angle track 12, and during impact stroke switch 11, this moment, travel switch K1 disconnected, triode V1, V2 ends, C point current potential raises, at this moment controllable silicon T control electrode potential raises, controllable silicon T conducting, the electric adhesive of electromagnet K4, discharged by the flat wire spring 1 that electromagnet 2 blocks this moment, because the direction of belt pulley 4 rotations is consistent with the direction that flat wire spring 1 screws, at this moment the axle sleeve 3 on the flat wire spring 1 locking belt pulley 4 because an end of flat wire spring is fixed on the bent axle 6, thereby drives bent axle 6 and rotates, through last connecting rod 5 and lower link 8, bent axle 6 is moved to lower dead center by top dead centre, promotes lower link 8 and 13 motions of last cutter head simultaneously, thereby cuts off reinforcing bar.Meanwhile C point high potential charges to capacitor C 1 through resistance R 4 in the control circuit, triode V2 saturation conduction when delay capacitor C1 current potential reaches certain value, A point current potential descends, controllable silicon T control electrode potential descends, controllable silicon T ends, electromagnet K4 dead electricity, this moment, bent axle 6 was crossed lower dead center, owing to electromagnet 2 dead electricity, its activity glossoptosis, when bent axle 6 rotated a circle, flat wire spring 1 was blocked again, unclamped bent axle 6, at this moment bent axle 6 stops operating, stage clip 9 is parked in top dead centre when making bent axle 6 static, prepares for work next time, during the knocking-on right angle of the reinforcing bar that has cut off track, at this moment travel switch K1 is closed once more, triode V1 conducting, the C point becomes electronegative potential, and capacitor C 1 is prepared for work next time through the discharge of resistance R 4 to C points.

Therewith repeatedly, can realize cutting off automatically reinforcing bar.

This device can also as long as described upward cutter head 13 and lower cutter 14 are replaced by upper trimming die and following punch die, promptly can be used as small-sized punch press and use as the automatic clutch control of small-sized punch press.

Claims

1, a kind of automatic bar cropper, comprise bent axle (6), the eccentric part of bent axle (6) one ends is installed connecting rod (5), crankshaft two end connects housing (10) through bearing block (7), last connecting rod (5) connects the lower link (8) that cutter head (13) are equipped with in the bottom through universal joint, bent axle (6) other end connects the transmission device of being made up of belt (16) and motor (17) through belt pulley (4), and control device is formed, it is characterized in that, described belt pulley (4) the center connecting bushing (3) that is installed on the bent axle (6), the end of axle sleeve (3) and bent axle (6) is with spring (1), spring (1) one end is fixed on bent axle (6) end, another termination electromagnet (2) of spring (1), spring (1) to screw the direction that direction and belt pulley (4) rotate consistent.

2, a kind of automatic bar cropper according to claim 1 is characterized in that, described spring (1) is flat wire spring (1).

3, a kind of automatic bar cropper according to claim 1 is characterized in that, is with stage clip (9) on the described lower link (8).

4, a kind of automatic bar cropper according to claim 1, it is characterized in that, side at housing (10) connects right angle track (12), right angle track (12) is vertical with lower link (8) direction of motion, and correspondence is installed in material mouthful (15) position, right angle track (12) is gone up the travel switch (11) that adjustable position is installed, and joins with control device.

5, a kind of automatic bar cropper according to claim 1 is characterized in that, described device is horizontal to be installed on the pedestal.

6, according to claim 1 or 4 described a kind of automatic bar croppers, it is characterized in that, described control device comprises travel switch K1 (11) and electromagnet K4 (2), civil power connects triode V1 base stage through its control end after rectification, the filtering behind travel switch K1, triode V1 colelctor electrode is exported one the tunnel and connect triode V2 colelctor electrode after resistance R 3, and connect the controllable silicon T control utmost point, and another road connects triode V2 base stage behind resistance R 4, R5, and controllable silicon T anode connects civil power behind electromagnet K4.