WO2020029988A1

WO2020029988A1 - Steel bar curving and bending machine

Info

Publication number: WO2020029988A1
Application number: PCT/CN2019/099547
Authority: WO
Inventors: 陈振东
Original assignee: 建科机械（天津）股份有限公司
Priority date: 2018-08-09
Filing date: 2019-08-07
Publication date: 2020-02-13
Also published as: KR102407347B1; KR20200085330A; CN109047571B; CN109047571A

Abstract

A steel bar curving and bending machine, comprising: a machine frame (1); an curving portion (2) disposed on the machine frame (1) and configured to curve a steel bar (10) to form an arc; a bending portion (3) disposed on the machine frame (1) and configured to bend the steel bar (10) to form a hook, the bending portion (3) being located on the feeding side or the discharging side of the curving portion (2), or the bending portions (3) being provided on both the feeding side and the discharging side of the curving portion (2); and a slide rail (4) disposed on the machine frame (1), the extending direction of the slide rail (4) being vertical to the feeding direction, and the bending portion (3) being slidably connected to the slide rail (4).

Description

Rebar bending machine

This application claims priority from a Chinese patent application with a filing date of August 9, 2018 and an application number of 201810901589.0, the entire contents of which are incorporated herein by reference.

Technical field

The present application relates to the technical field of steel bar processing equipment, for example, to a steel bar bending machine.

Background technique

During the construction of tunnels and subways, after the shield machine excavates the round holes, multiple arc-shaped shield segments are needed to fix the round holes, providing a solid and safe space for subsequent projects. The shield segment is an arc-shaped shield segment of different sizes formed by the combination of the shield cage of the shield segment and concrete anchoring. The shield segment steel reinforcement cage includes the main members such as the main reinforcement skeleton, longitudinal reinforcement and hoop reinforcement. Generally, the main tendon skeleton includes an outer main tendon and an inner main tendon, wherein both ends of the inner main tendon need to be bent into a hook shape, and the middle part needs to have a preset radian to meet the needs of use. In the related technology, in order to make the straight steel bar meet the above requirements, generally the straight steel bar is firstly curved through the arc bending machine, and after the steel bar is bent, the bending machine hook is used. However, the process of reversing the order in the process of bending the hooks of the steel bars requires laborious labor, and the production efficiency is relatively low.

Summary of the invention

This application proposes a steel bar bending machine, which can improve the efficiency of steel bar bending and bending.

An embodiment provides a bending and bending machine for steel bars, including: a frame; an arc portion provided on the frame and configured to bend the steel bar; a bending portion provided on the frame and provided In order to hook the reinforcing steel bar, the bending portion is located on a feeding side or a discharging side of the bending portion, or the bending portion is provided on the feeding side and the discharging side of the bending portion; And the slide rail are arranged on the frame, the extending direction of the slide rail is perpendicular to the feeding direction, and the bending part is slidably connected with the slide rail.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic structural diagram of a steel bar bending and bending machine according to an embodiment of the present application; FIG.

FIG. 2 is a partially enlarged view at A in FIG. 1; FIG.

FIG. 3 is a schematic structural diagram when a first end of a reinforcing bar is provided according to an embodiment of the present application; FIG.

FIG. 4 is a schematic structural diagram of a second end of a reinforcing bar provided according to an embodiment of the present application when it is bent.

Among them, 1, the frame; 2, the curved part; 3, the curved part; 4, the slide rail; 5, the first drive device; 6, the first detection device; 7, the second detection device; 8, the positioning portion; 9 Clamping section; 10. Rebar;

11, threaded holes; 12, support;

21. Adjusting wheels; 22. Traction wheels; 23. Second driving device;

31. Bending cabinet; 32. Bending mandrel; 33. Bending shaft;

81, positioning seat; 82, automatic pin; 821, first cylinder; 822, locking pin;

91. The first clamping member; 92; The second clamping member; 93; The third driving device.

detailed description

As shown in FIG. 1 to FIG. 4, this embodiment provides a steel bar bending machine. The steel bar bending machine realizes continuous production for the steel bars 10 that require both arcing and hooks, and does not require sequential work. As shown in FIG. 1, the steel bar bending machine includes a frame 1, a curved portion 2, a curved portion 3, a slide rail 4, a first driving device 5, a first detection device 6, a second detection device 7, and a controller. .

Among them, as shown in FIGS. 1 and 3, the curved portion 2 is fixed on the frame 1 and is configured to perform curved arcs on the reinforcing steel 10. The slide rail 4 is disposed on the rack 1. The extending direction of the slide rail 4 is perpendicular to the feeding direction. The direction indicated by the arrow in FIG. 3 is the feeding direction. The bending part 3 can hook the reinforcing steel bar 10. The bending part 3 is connected to the first driving device 5 and is slidably connected to the slide rail 4. The bending part 3 can be driven along the slide rail to the curved part 2 by the driving of the first driving device 5. 4Swipe. The support base 12 is fixed on the frame 1, and the first driving device 5 is fixed on the support base 12.

In this embodiment, there are two curved portions 3, and the two curved portions 3 are respectively located on the feeding side and the discharging side of the curved portion 2, and are arranged symmetrically to each other. The number of the first detection devices 6 is one, and the first detection device 6 is disposed on the feeding side of the curved portion 2. The number of the second detection devices 7 is two, and the two second detection devices 7 are respectively connected to the two bending portions 3. However, the number of the bending portions 3 is not limited to two, and may be one. The bending portion 3 is only provided on the feeding side or the discharging side of the curved portion 2, and the corresponding second detection device 7 is one.

The controller is electrically connected to the arc bending part 2, the bending part 3, the slide rail 4, the first driving device 5, the first detecting device 6 and the second detecting device 7, respectively, so as to realize automatic control of the bending arc and bending process, so as to improve Productivity.

As shown in FIGS. 1 and 3, the first detection device 6 is disposed on the feeding side of the curved portion 2 and is disposed to detect the position of the reinforcing bar 10. The first detection device 6 includes a detection head, and the detection head is arranged upward. When the rebar 10 feed moves above the detection head, the detection head detects the rebar 10 feed, and the first detection device 6 transmits a feed signal to the controller. , The controller controls the action of the curved part 2 and prepares to bend the steel bar 10. When the reinforcing bar 10 continues to move, and the detection head cannot detect the reinforcing bar 10, the first detection device 6 will generate an alarm signal, and transmit the alarm signal to the controller, and the controller controls the corresponding component action. The first detection device 6 may be in various forms, such as a photoelectric switch or a piezoelectric switch. Wherein, upper and upper refer to the upper in FIG. 1 and FIG. 3.

The second detection device 7 is disposed on a side of the curved portion 3 away from the curved portion 2, and the second detection device 7 is disposed to detect whether the reinforcing bar 10 has reached a predetermined bending position. A telescopic device is connected to the second detection device 7. The second detection device 7 has a detection position and a non-detection position. The telescopic device drives the second detection device 7 to move between the detection position and the non-detection position. In this embodiment, the preset bending position is located on the bending part 3, and when the second detection device 7 is in the detection position, when the reinforcing bar 10 touches the second detecting device 7, it indicates that the reinforcing bar 10 has reached the preset bending position. The second detection device 7 may send a reminder signal to the controller, and the controller controls the bending of the bending portion 3 according to the reminder signal. The second detection device 7 may be a piezoelectric switch, or may be another device capable of detecting the position of the reinforcing bar 10 according to the specific situation.

As shown in FIG. 1, FIG. 3, and FIG. 4, the steel bar bending machine in this embodiment further includes two positioning portions 8, and the two positioning portions 8 are respectively connected to the bending portion 3 and the bending portion on the feed side of the bending portion 2. The curved portion 3 on the discharge side of the arc portion 2 is correspondingly disposed, and the two positioning portions 8 are symmetrically disposed. As shown in FIG. 2, the positioning portion 8 includes a positioning base 81 and an automatic pin 82. The positioning base 81 is disposed at a preset positioning position of the frame 1. The automatic pin 82 is connected to the bending portion 3 and can be connected to the positioning base 81. The rack 1 is provided with a plurality of connection positions. The plurality of connection positions are arranged along the extension direction of the slide rail 4. The positioning base 81 can be detachably connected to different connection positions on the rack 1. In this embodiment, the connection position includes a threaded hole 11, and the positioning base 81 is connected to the preset positioning position through the cooperation of the screw and the threaded hole 11. When the position of the positioning base 81 is changed, the screws can be fixed to different connection positions. The automatic pin 82 in this embodiment includes a first cylinder 821 and a locking pin 822, wherein the first cylinder 821 is fixed on the bending portion 3, a piston rod of the first cylinder 821 is connected to the locking pin 822, and the first cylinder 821 The axis of the piston rod coincides with the axis of the locking pin 822. The positioning base 81 is provided with a positioning hole, and the locking pin 822 can be protruded into the positioning hole by the driving of the first air cylinder 821. Since the position of the positioning base 81 relative to the frame 1 has been determined, after the locking pin 822 extends into the positioning hole, the position of the bent portion 3 connected to the automatic pin 82 is also determined. Wherein, the preset positioning position of the positioning base 81 is selected according to the bending preset position of the bending part 3. After the automatic pin 82 is connected to the positioning base 81, the bending part 3 is required to be just a position capable of bending the reinforcing bar 10.

As shown in FIG. 3, the curved portion 2 of this embodiment includes an adjustment wheel 21, two traction wheels 22 spaced apart along the feeding direction, and a second driving device 23. The second driving device 23 is drivingly connected to the traction wheel 22. The surface of the traction wheel 22 is in contact with the rebar 10 and can drive the rebar 10 to move. The center of the adjustment wheel 21 is located on the symmetry line of the two traction wheels 22. The center of the adjustment wheel 21 and the center of the two traction wheels 22 are distributed in a triangle. The second driving device 23 can drive the adjustment wheel 21 to reciprocate along a line of symmetry of the two traction wheels 22. The adjusting wheel 21 is driven close to the two traction wheels 22 under the driving of the second driving device 23. While the steel bars 10 driven by the two traction wheels 22 are moving, the pressure of the adjusting wheels 21 is achieved, so that the steel bars 10 are within a preset range. Bend out in radians. The structure of the curved portion 2 is not limited to the cooperation of one adjustment wheel 21 and two traction wheels 22, but also the cooperation of two adjustment wheels 21 and one traction wheel 22. At this time, the center of the traction wheel 22 is at two The symmetry line of the adjustment wheel 21.

The bending portion 3 in this embodiment includes a bending case 31 and a bending mandrel 32 and a bending shaft 33 provided on the bending case 31. The bending case 31 is slidably connected to the slide rail 4, and the bending case 31 and the first drive Device 5 is connected. A gap is provided between the bending mandrel 32 and the bending shaft 33 to allow the reinforcing steel bar 10 to pass through. The surface of the bending mandrel 32 and the surface of the bending shaft 33 are in contact with the reinforcing bar 10, and the bending mandrel 32 and the bending shaft 33 are in contact with each other. With the cooperation, the reinforcing bar 10 is bent, so that the reinforcing bar 10 forms a hook.

As the reinforcing bar 10 may shake during the bending process, the bending quality of the reinforcing bar 10 may be affected. As shown in FIG. 1 and FIG. 3, in order to prevent the steel bar 10 from shaking during the bending process, the steel bar bending machine in this embodiment further includes a clamping portion 9 including a first clamping member 91 and a first Two clamping members 92, the first clamping member 91 is connected with a third driving device 93, and the first clamping member 91 is driven by the third driving device 93 to be able to move relative to the second clamping member 92, that is, the first clamping member 91 can be close to or away from the second clamping member 92. When the first clamping member 91 and the second clamping member 92 are close to each other, the reinforcing bars 10 placed between them can be clamped.

The first driving device 5, the second driving device 23, and the third driving device 93 may be a cylinder or a motor.

The working process of the steel bar bending machine in this embodiment is as follows:

In the initial state, when the bending portion 3 is in the initial position, the height of the bending portion 3 is lower than the position when the bending portion 3 bends the reinforcing bar 10. The reinforcing bar 10 is fed in the feeding direction by the feeding opening of the reinforcing bar bending machine. When the first detecting device 6 detects the reinforcing bar 10, the adjusting wheel 21 is driven by the second driving device 23 along the two traction wheels 22. The line of symmetry is close to the traction wheel 22; when the reinforcing bar 10 is fed to the preset position, the adjusting wheel 21 can just push down the reinforcing bar 10, and as the traction wheel 22 continuously drives the reinforcing bar 10, the adjusting wheel 21 bends the reinforcing bar 10 within the preset range. At the same time, the curved portion 3 provided on the discharge side of the curved portion 2 is connected to a positioning base 81 at a preset positioning position, and the second detection device 7 on the discharge side of the curved portion 2 is adjusted to a detection position. At this time, the reinforcing bar 10 continues to move in the feeding direction under the traction of the traction wheel 22, and when the first end of the reinforcing bar 10 touches the second detection device 7 on the discharge side of the curved portion 2, the second detection device 7 After leaving the detection position, the traction wheel 22 stops traction and clamps the reinforcing bar 10 through the clamping portion 9, and then the controller controls the bending portion 3 on the discharge side of the curved portion 2 to bend the first end of the reinforcing bar 10 (refer to FIG. 3). . After the bending of the first end of the reinforcing bar 10 is completed, the bending part 3 on the discharge side of the bending part 2 returns to the initial position, the reinforcing bar 10 continues to be driven forward by the traction wheel 22, and the adjusting wheel 21 continues to bend the reinforcing bar 10. When the first detection device 6 cannot detect the reinforcing bar 10, the traction wheel 22 drives the reinforcing bar 10 to move in the reverse direction. The bending part 3 provided on the feeding side of the curved part 2 and the positioning seat 81 on the feeding side of the curved part 2 are connected, and the second detection device 7 on the feeding side of the curved part 2 is adjusted to the detection position. When the second detection device 7 is touched in the moving direction, the second detection device 7 leaves the detection position, the traction wheel 22 stops pulling, the clamping portion 9 clamps the reinforcing bar 10, and then the controller controls the curved portion of the curved portion 2 on the feed side. 3 Bend the second end of the reinforcing bar 10 (refer to FIG. 4). After the bending is completed, the curved portion 3 on the feed side of the curved portion 2 returns to the initial position. The adjusting wheel 21 returns to the initial position of the adjusting wheel 21 under the driving of the second driving device 23, and the automatic grabbing device takes out the reinforcing steel bar 10.

The steel bar bending machine proposed in this embodiment is provided with a curved portion 2 and a curved portion 3 on the frame 1 at the same time, and can complete the bending and bending of the steel bar 10 without reversing work. Labor intensity has improved production efficiency.

Claims

A reinforced arc bending machine includes:

Frame (1);

The curved part (2) is arranged on the frame (1) and is configured to perform curved arcs on the reinforcing bars (10);

The bending part (3) is arranged on the frame (1) and is configured to hook the reinforcing steel bar (10). The bending part (3) is located on the feeding side of the bending part (2). The curved portion (3) is provided on either the discharge side or the feed side and the discharge side of the curved portion (2); and

A slide rail (4) is arranged on the frame (1), the extending direction of the slide rail (4) is perpendicular to the feeding direction, and the curved portion (3) is slidably connected with the slide rail (4) .
The bending and bending machine for steel bars according to claim 1, further comprising a positioning portion (8), the positioning portion (8) comprising a positioning base (81) and an automatic pin (82), the frame (1) is provided with There is a preset positioning position, the positioning base (81) is set at the preset positioning position, the automatic pin (82) is connected to the bending portion (3), and the automatic pin (82) can be connected with all The positioning base (81) is connected.
The steel bar bending machine according to claim 2, wherein the frame (1) is provided with a plurality of connection positions, and the plurality of connection positions are arranged along an extension direction of the slide rail (4), so that The positioning base (81) is configured to be detachably connected to the connection position different from that on the frame (1).
The bending and bending machine for steel bars according to claim 2, further comprising a first detection device (6), the first detection device (6) being disposed on a feeding side of the curved portion (2), and the A first detection device (6) is provided to detect the position of the reinforcing bar (10).
The bending and bending machine for steel bars according to claim 4, further comprising a second detection device (7), the second detection device (7) being arranged at the bending portion (3) away from the bending portion (2) On one side, the bending portion (3) includes a bending preset position, and the second detection device (7) is configured to detect whether the reinforcing bar (10) has reached the bending preset position.
The rebar bending machine according to claim 1, further comprising a clamping portion (9), the clamping portion (9) comprising a first clamping member (91) and a second clamping member (92), The first clamping member (91) is arranged to move relative to the second clamping member (92) to approach or move away from the second clamping member (92).
The bending and bending machine for steel bars according to claim 1, further comprising a first driving device (5), the first driving device (5) being connected to the bending portion (3) and arranged to drive the bending portion (3) moving along the slide rail (4).
The bending and bending machine for steel bars according to claim 7, wherein the bending part (2) comprises an adjustment wheel (21), two traction wheels (22) spaced apart along the feeding direction, and a second driving device ( 23), the outer peripheral surface of the traction wheel (22) is in contact with the reinforcing bar (10) and the traction wheel (22) is arranged to drive the reinforcing bar (10) to move, and the center of the adjusting wheel (21) is located at On the line of symmetry of the two traction wheels (22), and the center of the adjustment wheel (21) and the center of the two traction wheels (22) are distributed in a triangle, the second driving device (23) is provided To drive the adjustment wheel (21) to reciprocate along the line of symmetry.
The steel bar bending machine according to claim 1, wherein the bending portion (3) comprises a bending machine housing (31), a bending mandrel (32) and a bending machine provided on the bending machine housing (31). A shaft (33), the curved casing (31) and the slide rail (4) are slidably connected, and the rebar (10) is provided between the curved mandrel (32) and the curved shaft (33) ) Through the gap, so that the bending mandrel (32) and the bending shaft (33) cooperate to hook the steel bar (10).
The bending arc bending machine for steel bars according to claim 1, wherein the number of the bending portions (3) is two, and the two bending portions (3) are respectively provided in the bending portions (2). Feed side and discharge side.