CN101433938B

CN101433938B - Mechanism for shearing steel bar straightening and shearing machine

Info

Publication number: CN101433938B
Application number: CN2008102461543A
Authority: CN
Inventors: 何川
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-12-25
Filing date: 2008-12-25
Publication date: 2010-06-23
Anticipated expiration: 2028-12-25
Also published as: CN101433938A

Abstract

The invention discloses a shearing mechanism for a reinforcing steel adjusting cutter. The mechanism is provided with a dimensioning block and a positioning baffle plate which can limit a shearing pedestal. A reinforcing steel bar to be sheared is precisely cut at the required length each time by a shearing opening which is formed by a fixed cutter body and a movable cutter body in the shearing pedestal, so that the blanking length of the reinforcing steel bar is precise and errorless, and raw materials can be greatly saved; simultaneously, due to arrangement of offsetting pressure springs and lifting rods, the movable cutter body can be guaranteed to stably reset in time, so as to perform next shearing action, the consistency of the shearing motion is guaranteed. The shearing mechanism for the reinforcing steel adjusting cutter has low cost, and can guarantee high-efficiency and continuous operation of the machine; and the length of the sheared reinforcing steel bar is precise.

Description

The cutting mechanism of concrete-bar straightening-cutting machine

Technical field:

The present invention relates to a kind of cutting mechanism, the cutting mechanism in specifically a kind of concrete-bar straightening-cutting machine.

Background technology:

The cutting mechanism of employed concrete-bar straightening-cutting machine has two kinds in the market: a kind of is the gear mesh cut, this mechanism is on two mutual meshed gears, be separately installed with a shear-blade, when gear turns to two blade opposite positions, the reinforcing bar after the straightening cut off.Because, two shearing gears are cut off the elimination of the motion coherence behind the reinforcing bar, be the wheel disc and the ring control of stopping that is mounted on the gear shaft other end, wheel disc is braked by the frictional force between two peripheries at the ring endoporus of stopping, cut off reinforcing bar at every turn after, the position that shear-blade stopped is not constant, so, cause the insurmountable defective of this kind cutting mechanism to be, cutting length always has 20～30 (millimeter) error, and raw material have been wasted.Another kind is a hydraulic cutter formula cutting mechanism, and the defective that this kind mechanism mainly exists is can not sheared length be shorter than the following reinforcing bar of 500 (millimeters), and this mechanism adds the expense that hydraulic oil just needs 2000-4000 unit, has increased use cost.

Summary of the invention:

For overcoming the defective of prior art, the object of the present invention is to provide the cutting mechanism in a kind of concrete-bar straightening-cutting machine that can accurately shear out the Len req reinforcing bar.

Technical solution problem of the present invention adopts following technical scheme:

The cutting mechanism of concrete-bar straightening-cutting machine is characterized in that, described cutting mechanism has:

One cross section is the Cut Block of " mouth " font;

One lower end extends to the Cut Block inner chamber and can make vertical reciprocating moving knife body at this inner chamber, the seat that bears that described moving knife body upper end can be permanently connected one " L " shape, this bear seat directly over be provided with red seat by crank-driven, when bearing seat when mobile to the right, red seat can impact and bear seat and make it descending;

Can the be permanently connected stationary knife body of a hollow of the left side wall of Cut Block, one end of stationary knife body extends laterally to the Cut Block inner chamber and forms sheared edge with the sidewall of its end face and moving knife body, the other end of stationary knife body passes wallboard and can be socketed with regularly and is used to guide reinforcing bar to enter the guide cylinder of stationary knife body and Cut Block inner chamber, guide cylinder is socketed with return spring outward, this return spring right-hand member is spacing with wallboard, and left end is spacing to be socketed in the outer adjustment nut of guide cylinder;

The right side wall of Cut Block can pass for reinforcing bar, and be fixedly connected with the retainer slide bar in the outer right wall of Cut Block, the scale piece of steel bar end of can conflicting that on the retainer slide bar, can be permanently connected, and the frame that is positioned at the Cut Block right side is provided with the locating stop piece that can limit the shift length of Cut Block.

Be socketed with recoil press spring bearing the periphery of a bottom surface to the moving knife body between the Cut Block end face, the upper and lower end of described recoil press spring forms spacing to bear seat and Cut Block respectively.

At red seat with bear and also be provided with shadoof between the seat, the lower end of shadoof is threadedly connected to bears on the seat, the upper end of shadoof has a bulb, this bulb extends in the intrinsic vallecular cavity of red seat, the vertical section of described vallecular cavity is handstand " protruding " font, the external diameter of bulb is greater than the width of vallecular cavity bottom stenosis vallecular cavity, and the gap contacts between the upper surface, both sides of the bottom of bulb and stenosis vallecular cavity.

Described red seat is positioned at the guide bracket that connects firmly on wallboard, the lower end of connecting rod is connected by lever pin and red seat are active, the upper end of connecting rod is connected with bent axle and by crank-driven, below red seat, be provided with the piece that dashes that vertically protrudes in the red seat body, be sheared seat and drive when moving right when bearing seat, described impact the high-end place of bearing seat of " L " shape and make towards piece bear seat to drive the moving knife body descending.

Described moving knife body is down " U " shape, is fixedly connected with a blade below moving knife body body knee, forms sheared edge between the end face of the sidewall of described blade and stationary knife body.

The right side wall of described Cut Block is and the bolted Cut Block shrouding of Cut Block body that the Cut Block shrouding is fixedly connected with a wearing plate towards the one side of Cut Block inner chamber.

Compared with the prior art, beneficial effect of the present invention is embodied in:

1, is transported to guide cylinder when walking to scale piece place when reinforcing bar by stationary knife body, Cut Block inner chamber, reinforcing bar promote the scale piece and drive retainer slide bar, Cut Block simultaneously, bear seat, guide cylinder moves to right, block until the Cut Block catch that is positioned, the high-end place that bear seat this moment is positioned under piece, towards piece impact bearing seat and to drive the moving knife body descending, sheared edge is cut off reinforcing bar, the constant distance that moves to right because of Cut Block, so can be accurately, shear out the reinforcing bar of Len req consistently.

2, adopt dual measure to guarantee to bear a timely return, in the moment that reinforcing bar is cut off, return spring drives guide cylinder, Cut Block, moving knife body, bears seat, and the retainer slide bar return that moves to left simultaneously, meanwhile, bear the seat under the effect of recoil press spring with the up return of moving knife body, when if the not enough situation of recoil press spring elastic force occurring, red seat can be mentioned return with bearing seat by shadoof, thereby can guarantee to bear seat playback in time so that carry out next shear action.

3, the right side wall of Cut Block is detachable Cut Block shrouding, be convenient to process Cut Block on the one hand, can between Cut Block shrouding and moving knife body, install wearing plate additional easily on the other hand, avoid repeated friction between Cut Block inwall and the moving knife body, prolong the service life of each parts greatly.

Description of drawings:

Fig. 1 is a front view of the present invention.

Fig. 2 is the A-A cutaway view of Fig. 1.

Number in the figure: 1 Cut Block, 2,2 ' frid, 3 moving knife bodies, 4 bear seat, 5 red seats, 6 reinforcing bars, 7 wallboards, 8 guide brackets, 9 connecting rods, 10 lever pins, 11 bent axles, 12 stationary knife bodies, 13 guide cylinders, 14 return springs, 15 adjust nut, 16 retainer slide bars, 17 scale handles, 18 scale pieces, 19,19 ' locating stop piece, 20 recoil press springs, 21 shadoofs, 22 blades, 23 Cut Block shroudings, 24 wearing plates, 51 towards piece.

Below pass through the specific embodiment, and the invention will be further described in conjunction with the accompanying drawings.

The specific embodiment, non-limiting examples is as described below:

Embodiment: Fig. 1, shown in 2, the described cutting mechanism that is used in the concrete-bar straightening-cutting machine of present embodiment, Cut Block 1 is arranged at two parallel frids 2 of frame, 2 ' between to guarantee that it can make left and right sides rectilinear motion, the cross section of Cut Block is " mouth " font, the lower end of moving knife body 3 extends to the Cut Block inner chamber and can do vertically to move back and forth at this inner chamber, the upper end of moving knife body 3 be threaded (but certainly also key connect or other forms of can be fixedly connected) in the lower end of bearing seat 4, bear seat and be " L " shape, the piece 51 that dashes of red seat 5 lower ends impacts less than bearing seat 4 under the non-shearing condition, under the shearing condition promptly when bearing seat 4 when moving a certain distance to the right, can impact the high-end place of bearing seat towards piece 51 makes it drive moving knife body 3 descending cut-out reinforcing bars 6, shown in Figure 1, red seat 5 is positioned at the guide bracket 8 that connects firmly on wallboard 7, the lower end of connecting rod 9 is by

lever pin

10 and 5 active connections of red seat, the upper end of connecting rod 9 is connected with bent axle 11 and by crank-driven, when bent axle 11 was driven and rotated by actuating unit, connecting rod 11 drove red seat 5 and pumps in guide bracket 8.

Fig. 1, shown in 2, the be threaded stationary knife body 12 of a hollow of the left side wall of Cut Block 1, one end of stationary knife body extends laterally to the Cut Block inner chamber and forms sheared edge with the sidewall of its end face and moving knife body 3, the other end of stationary knife body 12 passes wallboard 7, and be connected to guide cylinder 13 at stationary knife body 12 external thread sleeves, be used to guide reinforcing bar 6 to enter the inner chamber of stationary knife body 12 and Cut Block 1, the guide cylinder 13 outer return springs 14 that are socketed with, this return spring right-hand member is spacing with wallboard 7, certainly, (generally should between return spring 14 and wallboard 7, spring shim be set,) return spring 14 left ends are spacing to be socketed in the outer adjustment nut 15 of guide cylinder 13, under the non-shearing condition, because of the effect of return spring 14, the left side wall of Cut Block 1 abuts against on the wallboard 7 all the time.Shown in Figure 2, the right side wall of Cut Block 1 can pass for reinforcing bar 6, and be fixedly connected with retainer slide bar 16 in the outer right wall of Cut Block, on retainer slide bar 16 by the scale handle 17 scale piece 18 that has been permanently connected, can be according to the position of the length setting scale piece of reinforcing bar to be cut, when conflicting to scale piece 18 in the termination of reinforcing bar 6, the scale piece drives retainer slide bar 16, and then drive Cut Block 1, stationary knife body 12, moving knife body 3, bear seat 4, guide cylinder 13 moves to right synchronously, be set at frid 2 until Cut Block 1, the locating stop piece 19 of 2 ' termination, 19 ' institute is blocked, (certainly, locating stop piece also can set firmly with frame on), the high-end place that bear seat this moment is positioned at towards the below of piece 51, bear that seat 4 is impacted and to drive moving knife body 3 descending, the formed sheared edge of moving knife body sidewall and stationary knife body end face is cut off reinforcing bar 6, in a flash cut at reinforcing bar, return spring 14 drives guide cylinder 13, stationary knife body 12, Cut Block 1, moving knife body 3, bear seat 4 returns that move to left synchronously, meanwhile, bearing seat 4 and recoil press spring 20 between the Cut Block 1 will bear the seat jack-up that makes progress and reset, for the elastic force that prevents recoil press spring not enough, shown in Figure 1, as distinctive feature of the present invention, at red seat 5 with bear seat and also be provided with shadoof 21 between 4, the lower end of shadoof is threadedly connected to bears on the seat 4, the upper end of shadoof has a bulb, this bulb extends in the intrinsic vallecular cavity of red seat, the vertical section of this vallecular cavity is handstand " protruding " font, the external diameter of bulb is greater than the width of vallecular cavity bottom stenosis vallecular cavity, and the gap contacts between the upper surface, both sides of the bottom of bulb and stenosis vallecular cavity, promptly there is minim gap, when red seat 5 is driven when up by connecting rod 9, shadoof 21 hardening capacity ground will bear 4 and mention and reset to carry out next shear action.

As a further improvement on the present invention, moving knife body 3 is down " U " shape, below moving knife body body knee, be fixedly connected with a blade 22, it is by wear-resisting, sharp material made, form sheared edge between the end face of the sidewall of blade 22 and stationary knife body 12, avoid directly forming sheared edge, both can save material cost, also can prolong the service life of shearing parts by the moving knife body.

As step improvement more of the present invention, the right side wall of Cut Block 1 is and the bolted Cut Block shrouding 23 of Cut Block body, Cut Block shrouding 23 is fixedly connected with a wearing plate 24 towards the one side of Cut Block inner chamber, when moving knife body 3 when the Cut Block inner chamber back and forth moves up and down, directly with the wearing plate friction, contact, can prolong the service life of Cut Block on the one hand greatly, be easy to processing and fabricating on the other hand and go out Cut Block.

Claims

1. the cutting mechanism of concrete-bar straightening-cutting machine is characterized in that, described cutting mechanism has:

One cross section is the Cut Block (1) of " mouth " font;

One lower end extends to the Cut Block inner chamber and can make vertical reciprocating moving knife body (3) at this inner chamber, bear (4) that described moving knife body upper end is permanently connected one " L " shape, this bear seat directly over be provided with the red seat (5) that drives by bent axle (11), when bearing seat when mobile to the right, red seat can impact and bear seat and make it descending;

The be permanently connected stationary knife body (12) of a hollow of the left side wall of Cut Block (1), one end of stationary knife body extends laterally to the Cut Block inner chamber and forms sheared edge with the sidewall of its end face and moving knife body, the other end of stationary knife body (12) passes wallboard (7) and is socketed with regularly and is used to guide reinforcing bar to enter the guide cylinder (13) of stationary knife body (12) and Cut Block (1) inner chamber, guide cylinder is socketed with return spring (14) outward, this return spring right-hand member is spacing with wallboard (7), and left end is spacing to be socketed in the outer adjustment nut (15) of guide cylinder;

The right side wall of Cut Block (1) can supply reinforcing bar (6) to pass, and be fixedly connected with retainer slide bar (16) in the outer right wall of Cut Block, the scale piece (18) of steel bar end of can conflicting that on the retainer slide bar, is permanently connected, and the frame that is positioned at the Cut Block right side is provided with the locating stop piece (19,19 ') that can limit the shift length of Cut Block.

2. the cutting mechanism of concrete-bar straightening-cutting machine according to claim 1, it is characterized in that, be socketed with recoil press spring (20) to the periphery of the moving knife body (3) between Cut Block (1) end face bearing seat (4) bottom surface, the upper and lower end of described recoil press spring is spacing to bear the formation of seat (4) and Cut Block (1) respectively.

3. the cutting mechanism of concrete-bar straightening-cutting machine according to claim 2, it is characterized in that, at red seat (5) with bear seat and also be provided with shadoof (21) between (4), the lower end of shadoof is threadedly connected to bears on the seat (4), the upper end of shadoof has a bulb, this bulb extends in the intrinsic vallecular cavity of red seat, the vertical section of described vallecular cavity is handstand " protruding " font, the external diameter of bulb is greater than the width of vallecular cavity bottom stenosis vallecular cavity, and the gap contacts between the upper surface, both sides of the bottom of bulb and stenosis vallecular cavity.

4. according to the cutting mechanism of claim 1 or 3 described concrete-bar straightening-cutting machines, it is characterized in that, described red seat (5) is positioned at the guide bracket (8) that connects firmly on wallboard (7), the lower end of connecting rod (9) is by lever pin (10) and active connection of red seat (5), the upper end of connecting rod is connected with bent axle (11) and by crank-driven, be provided with in the below of red seat (5) vertically protrude in the red seat body dash piece (51), be sheared seat (1) and drive when moving right when bearing seat (4), described impact the high-end place of bearing seat of " L " shape and make towards piece (51) bear seat (4) to drive moving knife bodies (3) descending.

5. the cutting mechanism of concrete-bar straightening-cutting machine according to claim 1, it is characterized in that, described moving knife body (3) is down " U " shape, is fixedly connected with a blade (22) below moving knife body body knee, forms sheared edge between the end face of the sidewall of described blade and stationary knife body (12).

6. the cutting mechanism of concrete-bar straightening-cutting machine according to claim 1, it is characterized in that, the right side wall of described Cut Block (1) is and the bolted Cut Block shrouding of Cut Block body (23) that the Cut Block shrouding is fixedly connected with a wearing plate (24) towards the one side of Cut Block inner chamber.