CN212563873U

CN212563873U - Control device for reinforcing steel bar hoop bending machine

Info

Publication number: CN212563873U
Application number: CN202021203582.0U
Authority: CN
Inventors: 冯广建
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-06-24
Filing date: 2020-06-24
Publication date: 2021-02-19
Anticipated expiration: 2030-06-24

Abstract

The utility model discloses a control device of a reinforcing steel bar hoop bending machine, which comprises a reversing valve and a linkage mechanism, when the reinforcing steel bar hoop bending machine needs to be stacked, a driving piece is utilized to drive a rotating shaft to rotate, the rotating shaft drives a first swing arm and a second swing arm to swing simultaneously when rotating, so that the first swing arm can swing to a position corresponding to a stroke rod, the second swing arm swings to a position corresponding to the reversing valve, when the stroke rod moves to the first swing arm position, the first swing arm can be pushed to swing, the rotating shaft is rotated, the second swing arm is driven to swing and trigger the reversing valve, thus, the reversing valve is triggered in a proper operation node through the linkage mechanism, a hydraulic oil circuit is switched through the reversing valve, the control of two hydraulic cylinders to complete the stacking work, the problem of stacking of the hoop bending machine is effectively solved, the control device is suitable for the reinforcing steel bar hoop bending machine, the stacking can be performed without manual operation, the structure is practical and reliable.

Description

Control device for reinforcing steel bar hoop bending machine

Technical Field

The utility model relates to a reinforcing bar processing equipment technical field, in particular to reinforcing bar hoop bending machine controlling means.

Background

The stirrup is a common building material in the building industry, and a hoop bending machine is generally used for bending a steel bar into the stirrup. According to the utility model patent of the applicant, the publication number is CN209792473U, the patent name is linkage shift two-way steel bar hoop bending machine, and the steel bar can be bent to form the stirrup by utilizing the linkage shift two-way steel bar hoop bending machine. In the process of bending the reinforcing steel bar, in order to enable the two end corners to be overlapped together to form the rectangular frame, the two ends of the reinforcing steel bar need to be dislocated in the final bending step, so that the material overlapping is facilitated. The concrete operation is that the hoop bending machine bends the reinforcing steel bar to form a plurality of bent angles, so that the reinforcing steel bar can be bent to form a frame, when the hoop bending machine bends the last bent angle of the reinforcing steel bar, the other end of the reinforcing steel bar is manually pulled up to form a certain inclination angle, so that the two ends of the reinforcing steel bar can be overlapped together when the last bent angle is finished, material overlapping is realized, time and labor are wasted in manual operation, the requirements on physical strength and experience of operators are high, the labor intensity is high, the working efficiency is low, and potential safety hazards exist.

Because this hoop bending machine only has a pneumatic cylinder, and bent angle and fold material operation can not be accomplished simultaneously to single pneumatic cylinder, even if increase the pneumatic cylinder and can satisfy driven power requirement, nevertheless lack to corresponding coordinated control device, also can't control two pneumatic cylinders cooperations and operate, consequently still need solve this reinforcing bar hoop bending machine's control problem.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a curved hoop machine controlling means of reinforcing bar can carry out the oil circuit through link gear control switching-over valve and switch, can realize controlling two pneumatic cylinder cooperations and accomplish to fold the material, effectively solves the curved hoop machine and folds the problem of material, and the structure is practical reliable.

According to the utility model discloses a reinforcing bar hoop bending machine controlling means of embodiment includes:

the reversing valve is used for switching a hydraulic oil way;

the linkage mechanism comprises a driving piece, a rotating shaft and a stroke rod, a first swing arm and a second swing arm are arranged on the rotating shaft, the rotating shaft is driven by the driving piece to rotate, so that the first swing arm swings to the position corresponding to the stroke rod, the second swing arm swings to the position corresponding to the reversing valve, and the stroke rod can move to the position of the first swing arm and push the first swing arm to swing, so that the second swing arm triggers the reversing valve to switch oil paths.

According to some embodiments of the utility model, be equipped with on the first swing arm be used for with the first touching wheel of stroke pole touching, be equipped with on the second swing arm be used for with the second touching wheel of switching-over valve touching.

According to some embodiments of the utility model, be equipped with on the second swing arm and be used for making the first reset spring that the second swing arm resets.

According to the utility model discloses a some embodiments, still be equipped with on the second swing arm and be used for the restriction second swing arm swing angle's spacing screw.

According to the utility model discloses a some embodiments, the switching-over valve includes valve body and case, be equipped with oil inlet, oil-out and oil discharge port on the valve body, the case can be followed the valve body inner chamber removes, with will the oil inlet with the oil circuit of oil discharge port intercommunication switches into the oil inlet with the oil circuit of oil-out intercommunication.

According to some embodiments of the utility model, the one end of case extends to the outside of valve body form with the trigger end that the second swing arm corresponds.

According to some embodiments of the utility model, be equipped with in the valve body and be used for making the second reset spring that the case resets.

According to some embodiments of the present invention, further comprising:

the first hydraulic cylinder is used for providing driving force for bending the steel bar;

the second hydraulic cylinder is used for providing a driving force for stacking the reinforcing steel bars;

the oil outlet end of the first hydraulic cylinder is connected with the oil inlet, the oil inlet end of the second hydraulic cylinder is connected with the oil outlet, and the first hydraulic cylinder is matched with the second hydraulic cylinder to stack the reinforcing steel bars when the linkage mechanism triggers the reversing valve.

According to some embodiments of the utility model, the link gear still includes the stroke support, the stroke support with the actuating lever of first pneumatic cylinder is connected, the stroke pole with the stroke leg joint.

According to some embodiments of the utility model, the driving piece includes pedal and first connecting rod, the one end of first connecting rod with pedal is articulated, the other end with the pivot is articulated.

According to the utility model discloses curved hoop machine controlling means of reinforcing bar has following technological effect at least:

when the steel bar hoop bending machine needs to perform material stacking operation, the driving piece is utilized to drive the rotating shaft to rotate, the rotating shaft drives the first swing arm and the second swing arm to swing simultaneously when rotating, so that the first swing arm can swing to a position corresponding to the stroke rod, meanwhile, the second swing arm swings to a position corresponding to the reversing valve, namely, the first swing arm and the second swing arm are in a state to be triggered, at the moment, the steel bar hoop bending machine continues to perform bending and bending angle operation, the stroke rod can move towards the direction of the first swing arm, when the stroke rod moves to the position of the first swing arm, the first swing arm can be pushed to swing, so that the rotating shaft rotates, so that the second swing arm is driven to swing and trigger the reversing valve, in this way, the reversing valve is triggered in a proper operation node through the linkage mechanism, the hydraulic oil way is switched through the reversing valve, the material stacking work can be completed by controlling the two hydraulic cylinders to cooperate, the hoop bending machine is suitable for a reinforcing steel bar hoop bending machine, material stacking is carried out without manual operation, and the structure is practical and reliable.

Additional features and advantages of the application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the application.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic view of an overall structure of a reinforcing bar hoop bending machine according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a bending state of the reinforcing steel bar by the reinforcing steel bar hoop bending machine according to an embodiment of the present invention;

fig. 3 is a schematic structural view illustrating a state of jacking up a reinforcing bar in the reinforcing bar hoop bending machine according to an embodiment of the present invention;

fig. 4 is a schematic structural view of a state of completing material stacking in the reinforcing bar hoop bending machine according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a stacking mechanism according to an embodiment of the present invention;

FIG. 6 is a cross-sectional view of the stacking mechanism in the direction A-A of FIG. 5 in a standby state;

FIG. 7 is a schematic cross-sectional view of the stacking mechanism in the A-A direction of FIG. 5 in a raised state;

fig. 8 is a schematic structural diagram of a reinforcing bar hoop bending machine control device according to an embodiment of the present invention;

fig. 9 is a schematic view of a connection structure of a hydraulic oil passage according to an embodiment of the present invention;

fig. 10 is a schematic cross-sectional view of a reversing valve according to an embodiment of the present invention in a standby state;

fig. 11 is another schematic cross-sectional view of the reversing valve in a standby state according to an embodiment of the present invention;

fig. 12 is a schematic cross-sectional view of a reversing valve according to an embodiment of the present invention in a triggered state;

fig. 13 is a schematic view of a connection structure of a first hydraulic cylinder and a stroke bracket according to an embodiment of the present invention;

fig. 14 is a schematic structural diagram of a linkage mechanism according to an embodiment of the present invention;

fig. 15 is a schematic structural diagram of a linkage mechanism according to an embodiment of the present invention in a standby state;

fig. 16 is a schematic structural diagram of a linkage mechanism according to an embodiment of the present invention in a state to be triggered;

fig. 17 is a schematic structural view illustrating a state of the link mechanism triggering the directional control valve according to an embodiment of the present invention.

Reference numerals:

a reinforcing bar hoop bending machine 10;

reinforcing steel bars 20;

the bending mechanism 100, the turntable 110, the center pin 111, the eccentric pin 112, the first hydraulic cylinder 120, the stroke support 121, the reverse stop pin plate 130, the forward stop pin plate 140 and the second pedal 150;

the stacking mechanism 200, a top plate 210, a second hydraulic cylinder 220, a second driving rod 221, a top rod 230, a thimble 231, a loop bar 232, a third return spring 240, a guide wheel set 250, a guide rod 260 and a guide seat 270;

a rack 300, a worktop 310;

the reversing valve 400, the valve body 410, the oil inlet 411, the oil outlet 412, the oil discharge port 413, the valve core 420 and the trigger end 421;

the linkage mechanism 500, a rotating shaft 510, a first swing arm 511, a second swing arm 512, a third swing arm 513, a first touch wheel 514, a second touch wheel 515, a first return spring 516, a limit screw 517, a travel lever 520, a first pedal 530, a first connecting rod 540 and a second connecting rod 550.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, if there are first, second, third, etc. described, it is only for the purpose of distinguishing technical features, and it is not understood that relative importance is indicated or implied or that the number of indicated technical features is implicitly indicated or that the precedence of the indicated technical features is implicitly indicated.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper and lower directions, is the orientation or positional relationship shown on the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that unless there is an explicit limitation, the words such as setting, installing, connecting, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meaning of the above words in the present invention by combining the specific contents of the technical solutions.

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the embodiments described below are some, not all embodiments of the present invention.

A reinforcing bar hoop bending machine 10 according to an embodiment of the present invention is described with reference to fig. 1 to 17.

Referring to fig. 1 and 2, a reinforcing bar hoop bending machine 10 according to an embodiment of the present invention includes a bending mechanism 100 and a stacking mechanism 200. The bending mechanism 100 is used for bending the reinforcing steel bar 20 to form a bending angle, and the bending mechanism 100 can bend the reinforcing steel bar 20 to form a plurality of bending angles, so that the reinforcing steel bar 20 is bent to form a square stirrup. The stacking mechanism 200 is used to bend one end of the reinforcing bar 20 into an inclined shape, so that the two ends of the reinforcing bar 20 can be stacked in a staggered manner.

Specifically, as shown in fig. 1, the bending mechanism 100 includes a rotary plate 110, a first driving device and a positioning assembly, the rotary plate 110 is provided with a center pin 111 and an eccentric pin 112, the center pin 111 is located at a central axis of the rotary plate 110, the eccentric pin 112 is located at a position on the rotary plate 110 away from the central axis, and the center pin 111 is spaced from the eccentric pin 112 by a certain distance. It can be understood that the reinforcing bar 20 is placed between the center pin 111 and the eccentric pin 112, when the rotating disc 110 rotates, the reinforcing bar 20 is positioned by the positioning assembly, and the reinforcing bar 20 can be clamped and bent by the cooperation of the center pin 111 and the eccentric pin 112, so that the reinforcing bar 20 is bent to form a bend angle.

Wherein, the bending mechanism 100 can be forward or backward buckle reinforcing bar 20, and locating component can cooperate and all can fix a position reinforcing bar 20 when forward and backward buckling, and first drive arrangement adopts the drive of first pneumatic cylinder 120, and the bending mechanism 100 in this embodiment can refer to the publication number for CN209792473U, and the patent name is the two-way reinforcing bar hoop bending machine 10's that the linkage shifts utility model patent, and concrete structure and theory of operation refer to above-mentioned utility model patent disclosure's content, and the here is no longer repeated.

Referring to fig. 1, the stacking mechanism 200 includes a top plate 210 and a second driving device, the bending mechanism 100 and the stacking mechanism 200 are both mounted on the machine frame 300, wherein the turntable 110 and the positioning assembly are located on the working platform 310 of the machine frame 300, and the second driving device drives the top plate 210 to move in a direction perpendicular to the working surface of the turntable 110, i.e. the top plate 210 can be lifted up in a direction perpendicular to the working platform 310. When the stacking mechanism 200 is in a standby state, the top plate 210 is located on the working table 310 and does not extend out of the working table 310; when the stacking mechanism 200 is operated, the second driving device drives the top plate 210 to extend upward, so as to lift the reinforcing bars 20 on the work table 310 upward.

Referring to fig. 2, it can be understood that the bending mechanism 100 is spaced apart from the stacking mechanism 200, and the bending mechanism 100 performs a bending operation on one end of the reinforcing bar 20, so as to position the reinforcing bar 20 when the bending mechanism 100 clamps the reinforcing bar 20, so that one end of the reinforcing bar 20 can be fixed at the position of the turntable 110; the other end of the rebar 20 is located just above the top plate 210. Therefore, as shown in fig. 3, when the top plate 210 jacks up the reinforcing bars 20, the reinforcing bars 20 can tilt upwards, so that the two ends of the reinforcing bars 20 are dislocated, and thus, when the bending mechanism 100 completes the last bend angle, the two ends of the reinforcing bars 20 can be just overlapped together, thereby realizing automatic overlapping, as shown in fig. 4. And the angle that roof 210 jack-up reinforcing bar 20 perk is fixed a position accurately, makes the both ends of reinforcing bar 20 can be close to the coincide, need not manual operation bending reinforcing bar 20, greatly reduced workman's intensity of labour, the operation is more labour saving and time saving, effectively improves production efficiency, and the security also obtains guaranteeing.

Referring to fig. 5, in some embodiments, the second driving device includes a ram 230 and a second hydraulic cylinder 220, a second driving rod 221 driven by hydraulic pressure to extend and retract is disposed in the second hydraulic cylinder 220, a lower end of the ram 230 is connected to the second driving rod 221, and an upper end of the ram 230 is connected to the top plate 210. Specifically, the second hydraulic cylinder 220 is fixed on the frame 300 and located below the working table 310, a through hole for the rod 230 to pass through is formed in the working table 310, and the bottom of the second hydraulic cylinder 220 is connected to an oil supply pipe. During operation, second hydraulic cylinder 220 promotes ejector pin 230 through second drive pole 221 and upwards stretches out, and jack-up roof 210 up through ejector pin 230 to promote the upwards perk of reinforcing bar 20, utilize the pneumatic cylinder as drive power, have higher drive strength, can promote the upwards perk of reinforcing bar 20 fast, stable in structure is reliable.

Referring to fig. 6 and 7, in the present embodiment, the top rod 230 includes a sleeve rod 232 and a thimble 231, the sleeve rod 232 is sleeved outside the thimble 231, a lower end of the sleeve rod 232 is connected to the second driving rod 221, and a top end of the thimble 231 extends out of an upper end of the sleeve rod 232 and is connected to a bottom of the top plate 210. Set up direction wheelset 250 in the outside of loop bar 232, it is concrete, direction wheelset 250 includes left leading wheel and right leading wheel, left leading wheel and right leading wheel installation are located table 310's bottom surface and correspond with the through-hole, loop bar 232 passes from the clearance between left leading wheel and the right leading wheel, under the guide effect of direction wheelset 250, make loop bar 232 can smooth pass through, can reduce the friction between loop bar 232 and the through-hole on the one hand, on the other hand can play the positioning action.

Referring to fig. 5, in order to further improve the moving stability of the top plate 210, a guide rod 260 is disposed at the bottom of the top plate 210, a guide seat 270 matched with the guide rod 260 is disposed at the bottom surface of the working table 310, and when the top plate 210 is pushed upwards by the top rod 230 to move, the guide rod 260 can slide along the guide seat 270 to perform a positioning and guiding function. For example, a guide groove may be formed in the guide holder 270, and the guide bar 260 may be movable along the guide groove, so that the top plate 210 may be stably moved in a vertical direction, thereby preventing the top plate 210 from being displaced.

Referring to fig. 1 to 4, in some embodiments, a third return spring 240 is disposed outside the push rod 230, an upper end of the third return spring 240 is connected to the push rod 230, a lower end of the third return spring 240 is connected to the frame 300, and the push rod 230 can be returned to an original position by an elastic force of the third return spring 240. Specifically, the outside of loop bar 232 is connected with two third reset springs 240, when second actuating lever 221 drive thimble 231 upward movement, loop bar 232 moves and tensile third reset spring 240 along with thimble 231 together, make third reset spring 240 produce decurrent effort, second pneumatic cylinder 220 oil discharge after reinforcing bar 20 accomplishes to fold the material, under third reset spring 240's spring action, loop bar 232 moves down and resets fast, thereby make roof 210 also reset, and simple structure is practical, and manual operation is not needed.

In some embodiments, the positioning assembly includes a baffle and a third driving device, the third driving device drives the baffle to swing to cooperate with the center pin 111 and the eccentric pin 112 to bend the steel bar 20, wherein the baffle includes a reverse baffle 130 and a forward baffle 140, specifically, the positioning assembly can refer to the linkage displacement baffle disclosed in the utility model with the publication number CN209792473U, which is not described in detail herein.

Referring to fig. 8 to 17, a control device according to an embodiment of the present invention is described, and the present invention is applied to a reinforcing bar hoop bending machine 10 according to an embodiment of the present invention.

Referring to fig. 8, the utility model discloses controlling means includes switching-over valve 400 and link gear 500, and switching-over valve 400 is through advancing the first pneumatic cylinder 120 of oil union coupling, through going out oil union coupling second pneumatic cylinder 220 to carry out the oil discharge through oil discharge pipe, switching-over valve 400 is used for switching the oil circuit direction, and link gear 500 is used for triggering switching-over valve 400, makes switching-over valve 400 can switch the oil circuit.

Referring to fig. 9, specifically, the oil inlet pipe is connected to the oil outlet end of the first hydraulic cylinder 120, the oil inlet end of the first hydraulic cylinder 120 is connected to an oil pump, and the oil pump is used for providing hydraulic oil. The oil outlet pipe is connected to the oil inlet end of the second hydraulic cylinder 220, and the oil discharge pipe is connected to the oil tank, so that the hydraulic oil of the first hydraulic cylinder 120 and the second hydraulic cylinder 220 can be discharged back to the oil tank. When the bending mechanism 100 normally works, the reversing valve 400 controls the oil inlet pipe to be communicated with the oil discharge pipe, that is, the hydraulic oil of the first hydraulic cylinder 120 can sequentially flow back to the oil tank through the oil inlet pipe and the oil discharge pipe to discharge the oil, at this time, the second hydraulic cylinder 220 does not work, and the stacking mechanism 200 and the linkage mechanism 500 are both in a standby state. When the material stacking mechanism 200 needs to be started, the reversing valve 400 is triggered through the linkage mechanism 500, the oil path of the hydraulic oil flowing through the oil inlet pipe and the oil discharge pipe is switched to the oil path of the oil inlet pipe and the oil discharge pipe, that is, the hydraulic oil is conveyed to the second hydraulic cylinder 220, so that the second hydraulic cylinder 220 starts to work. The structure of the inlet, outlet and discharge pipes is not shown in the drawings.

It should be noted that, because the folding mechanism 200 needs to cooperate with the bending mechanism 100 to position the reinforcing steel bars 20 when operating, when the second hydraulic cylinder 220 enters into operation, the first hydraulic cylinder 120 is still in an operating state, and at this time, the oil pump continuously supplies oil to the first hydraulic cylinder 120, so that the first hydraulic cylinder 120 and the second hydraulic cylinder 220 can cooperate to operate.

When the bending mechanism 100 works, the reinforcing steel bar 20 is bent into a plurality of bending angles through the bending mechanism 100; when the last bend angle is bent, the reversing valve 400 is triggered through the linkage mechanism 500, the oil way is switched to enable the stacking mechanism 200 to start working, the top plate 210 is driven through the second hydraulic cylinder 220 to jack up the reinforcing steel bar 20, the reinforcing steel bar 20 is tilted to form a certain inclination angle, and the positioning is accurate; then, the reinforcing steel bar 20 is bent through the bending mechanism 100 to complete the final bending angle, so that two ends of the reinforcing steel bar 20 can be overlapped in a staggered mode, automatic material stacking is achieved, manual operation is not needed for stacking the reinforcing steel bar 20, labor intensity of workers is greatly reduced, time and labor are saved, production efficiency is effectively improved, and operation safety is also improved.

Referring to fig. 10 to 12, in some embodiments, the reversing valve 400 includes a valve body 410 and a valve core 420, the valve core 420 is telescopically disposed in an inner cavity of the valve body 410, an oil inlet 411, an oil outlet 412 and an oil discharge port 413 are disposed on the valve body 410, and the oil inlet 411, the oil outlet 412 and the oil discharge port 413 are all communicated with the inner cavity. Wherein, the oil inlet 411 is connected with an oil inlet pipe, the oil outlet 412 is connected with an oil outlet pipe, and the oil discharge port 413 is connected with an oil discharge pipe. It can be understood that, as shown in fig. 10 and 11, the valve core 420 is in a standby state, in which the oil inlet 411 is communicated with the oil outlet 413, the oil outlet 412 is closed, and the hydraulic oil of the first hydraulic cylinder 120 enters the inner cavity of the valve body 410 through the oil inlet pipe and is discharged to the oil outlet pipe through the oil outlet 413, so as to flow back to the oil tank. As shown in fig. 12, the valve core 420 is in a state of waiting to be triggered, at this time, the oil inlet 411 is communicated with the oil outlet 412, the oil outlet 413 is closed, the hydraulic oil of the first hydraulic cylinder 120 enters the inner cavity of the valve body 410 through the oil inlet pipe and is discharged to the oil outlet pipe through the oil outlet 412, and the hydraulic oil is delivered to the second hydraulic cylinder 220 through the oil outlet pipe, so that the second hydraulic cylinder 220 starts to operate.

The valve core 420 can move telescopically along the inner cavity of the valve body 410, and the communication between the oil inlet 411 and the oil outlet 412 and the oil discharge port 413 is controlled through the movement of the valve core 420. One end of the valve element 420 extends to the outside of the valve body 410 to form an activation end 421, and when the linkage mechanism 500 touches the activation end 421, the valve element 420 can be pushed to move to change the position, so as to achieve the purpose of controlling and switching the oil path. As shown in fig. 12, when the linkage mechanism 500 touches the trigger end 421, the valve element 420 contracts toward the inner cavity, and the state of the communication between the oil inlet 411 and the oil outlet 413 is switched to the state of the communication between the oil inlet 411 and the oil outlet 412, so as to change the direction of the oil path, and the oil path switching efficiency is high, and the structure is practical and reliable. It will be appreciated that a second return spring (not shown) is provided within the valve body 410 for returning to allow the valve spool 420 to return after the linkage 500 is moved away from the trigger end 421.

Referring to fig. 14 to 17, in some embodiments, the linkage 500 includes a driving member, a rotating shaft 510 and a trip lever 520, wherein the rotating shaft 510 is rotatably mounted on the frame 300, the driving member is connected to the rotating shaft 510, the rotating shaft 510 can be driven to rotate by the driving member, and the trip lever 520 is connected to the first driving device.

Referring to fig. 14, specifically, a first swing arm 511, a second swing arm 512, and a third swing arm 513 are disposed on the rotating shaft 510, and the first swing arm 511, the second swing arm 512, and the third swing arm 513 all extend along the radial direction of the axis of the rotating shaft 510, wherein a first touch wheel 514 is disposed on the first swing arm 511, a second touch wheel 515 is disposed on the second swing arm 512, the first swing arm 511 and the second swing arm 512 are disposed at two symmetrical sides of the rotating shaft 510, and are substantially in a lever structure, the driving member is connected to the third swing arm 513, and the stroke rod 520 is connected to the first driving device. It can be understood that the first driving device drives the rotating disc 110 to rotate to a proper position, so that the center pin 111 and the eccentric pin 112 are engaged to clamp the reinforcing bars 20 for positioning, and therefore, the first driving device and the second driving device need to be controlled by the linkage 500 to be engaged to perform the stacking operation. It should be noted that, as shown in fig. 13, a stroke support 121 is disposed on the first hydraulic cylinder 120, a first driving rod is disposed on the first hydraulic cylinder 120, the stroke support 121 is connected to the first driving rod, the rotary table 110 is driven to rotate by the stroke support 121, the stroke rod 520 is connected to the stroke support 121, so that the stroke rod 520 can move along with the stroke support 121, and the specific connection structure and the working principle of the stroke support 121 and the first hydraulic cylinder 120 can refer to the stroke support 121 and the power component disclosed in the utility model with the publication number CN209792473U, which is not described herein in detail.

In this embodiment, the linkage 500 has two states, including a standby state and a to-be-triggered state. In the standby state, as shown in fig. 15, the driving member does not operate, the rotating shaft 510 does not rotate, and the first touch wheel 514 is spaced apart from the stroke lever 520 by a certain distance, so that the stroke lever 520 does not contact the first touch wheel 514 during the movement process, and the second touch wheel 515 does not contact the trigger end 421 of the direction valve 400.

As shown in fig. 16, the to-be-triggered state is that, when the bending mechanism 100 starts to bend the reinforcing bar 20 by the last bending angle, the linkage mechanism 500 is activated, the rotating shaft 510 is driven to rotate by the driving element, and the rotating shaft 510 rotates to make the first swing arm 511 and the second swing arm 512 swing, so that the first touch wheel 514 moves to the position of the moving path of the stroke rod 520, and at the same time, the second touch wheel 515 moves to the position close to the trigger end 421; as shown in fig. 17, when the stroke lever 520 moves to the position of the first touch wheel 514, the stroke lever 520 jacks up the first touch wheel 514, and at this time, the first swing arm 511 swings upward, and at the same time, the second swing arm 512 swings downward, so that the second touch wheel 515 moves downward and touches the trigger end 421, thereby triggering the directional valve 400 to perform an operation of switching the oil path.

It can be understood that, the stroke rod 520 moves along with the movement of the stroke support 121, the moving stroke of the stroke rod 520 can be set to a rotation angle capable of being matched with the rotary table 110, so that when the stroke rod 520 moves to the position of the first jacking touch wheel 514, the rotary table 110 rotates to a certain angle to enable the center pin 111 and the eccentric pin 112 to clamp the steel bar 20, the reversing valve 400 switches an oil way at the moment, oil is supplied to the second hydraulic cylinder 220, the second hydraulic cylinder 220 starts to work, accurate control over the steel bar hoop bending machine 10 is achieved, the bending mechanism 100 and the material stacking mechanism 200 can be better matched to complete material stacking operation, the operation is efficient and rapid, and the production efficiency is effectively improved.

In order to enable the second swing arm 512 to reset, a first reset spring 516 is arranged on the second swing arm 512, the first reset spring 516 is positioned above the second touch wheel 515, the lower end of the first reset spring 516 is connected with the second swing arm 512, and the upper end of the first reset spring 516 is connected with the bracket. When the second swing arm 512 swings downward, the second touch wheel 515 presses the trigger end 421, and the first return spring 516 generates an upward elastic force. After the stacking is completed, the stroke rod 520 is far away from the first touch wheel 514, and the second swing arm 512 is reset under the action of the first reset spring 516, so that the first swing arm 511 is also reset, and the linkage mechanism 500 is restored to the standby state.

Referring to fig. 15, a limit screw 517 is disposed on the second swing arm 512, and the limit screw 517 is located on the upper side of the second swing arm 512, it can be understood that the lower end of the limit screw 517 is connected to the second swing arm 512, and the upper end of the limit screw 517 is a free end and corresponds to the rack 300, when the second swing arm 512 rotates counterclockwise around the rotating shaft 510, the second swing arm 512 is limited within a certain rotation angle by the limit of the limit screw 517, and the second swing arm 512 is prevented from deviating from the working area.

Referring to fig. 8, in some embodiments, a driving member is used which includes a first pedal 530 and a first link 540, and one end of the first link 540 is hinged to the first pedal 530 and the other end is hinged to the third swing arm 513. The first connecting rod 540 is moved downwards by the operation of the first pedal 530, and the first connecting rod 540 drives the rotating shaft 510 to rotate, so that the linkage mechanism 500 enters a state to be triggered, and the operation is simple and safe.

In an embodiment, the driving member further includes a second link 550, and the first pedal 530 is connected to the oil pump through the second link 550. Specifically, the oil pump is provided with a switch valve for controlling the opening or closing of the oil pump, it can be understood that when the switch valve is opened, the oil pump delivers hydraulic oil to the first hydraulic cylinder 120, so that the first hydraulic cylinder 120 starts to operate, when the switch valve is closed, the first hydraulic cylinder 120 stops operating, and the hydraulic oil flows back to the oil tank through the oil return pipe. In the material stacking process, the linkage mechanism 500 enters a standby state by operating the first pedal 530, and meanwhile, the second connecting rod 550 triggers and opens the switch valve of the oil pump, so that the oil pump starts to supply oil, the first hydraulic cylinder 120 starts to work and drives the turntable 110 to bend the reinforcing steel bar 20, and then the operation flows of the embodiments shown in fig. 15 to 17 are sequentially completed, so that the automatic material stacking operation is completed, and the operation is simple, convenient and quick.

It should be noted that, in the embodiment, the bending mechanism 100 is operated and started by the second pedal 150, and it is described in detail in the pedal structure disclosed in the utility model with the publication number of CN209792473U, the first pedal 530 of the linkage mechanism 500 and the second pedal 150 of the bending mechanism 100 are provided independently, and they do not interfere with each other, so that the operation is simple.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims

1. A control device for a reinforcing steel bar hoop bending machine is characterized by comprising:

the reversing valve is used for switching a hydraulic oil way;

2. The control device for the reinforcing bar hoop bending machine according to claim 1, wherein a first touch wheel for touching the stroke rod is provided on the first swing arm, and a second touch wheel for touching the reversing valve is provided on the second swing arm.

3. The control device for the reinforcing bar hoop bending machine according to claim 2, wherein a first return spring for returning the second swing arm is provided on the second swing arm.

4. The control device for the reinforcing bar hoop bending machine according to claim 3, wherein a limit screw for limiting the swing angle of the second swing arm is further provided on the second swing arm.

5. The control device of the steel bar hoop bending machine according to claim 1, wherein the reversing valve comprises a valve body and a valve core, an oil inlet, an oil outlet and an oil outlet are arranged on the valve body, the valve core can move along the inner cavity of the valve body so as to switch an oil path of the oil inlet communicated with the oil outlet into an oil path of the oil inlet communicated with the oil outlet.

6. The control device for the reinforcing bar hoop bending machine according to claim 5, wherein one end of the valve core extends to the outer side of the valve body to form an activation end corresponding to the second swing arm.

7. A control device for a steel bar hoop bending machine according to claim 5, wherein a second return spring for returning the valve core is provided in the valve body.

8. The control device for a reinforcing bar hoop bending machine according to claim 5, further comprising:

9. The control device for a reinforcing bar hoop bending machine according to claim 8, wherein the linkage mechanism further comprises a stroke bracket connected to the driving rod of the first hydraulic cylinder, and the stroke rod is connected to the stroke bracket.

10. The control device for the reinforcing bar hoop bending machine according to claim 1, wherein the driving member comprises a pedal and a first connecting rod, one end of the first connecting rod is hinged with the pedal, and the other end of the first connecting rod is hinged with the rotating shaft.