WO2020063207A1 - Reinforcing bar hoop bending machine - Google Patents

Abstract

A reinforcing bar hoop bending machine, comprising a traction wheel set (3), a traction length metering wheel set (4), and a traction straightening mechanism. The traction straightening mechanism is provided between the traction wheel set and the traction length metering wheel set; the traction straightening mechanism comprises at least two driving wheels (5) and at least one driven wheel (6); the driving wheels and the driven wheels are provided in a staggered manner; a gap allowing a reinforcing bar (10) to pass through is provided between each two adjacent driving wheel and driven wheel. The hoop bending machine can stably pull the reinforcing bar while straightening the reinforcing bar, thereby preventing the reinforcing bar from slipping and twisting, and improving later counting and metering accuracy.

Description

Rebar bending hoop machine

This application claims priority from a Chinese patent application with a filing date of September 25, 2018 and an application number of 201811115969.8, 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

The steel bar bending machine is an automatic processing equipment that bends the raw steel wire rod and steel bar into different shapes of steel bars. It is widely used in urban construction, rail and transportation construction. As shown in FIG. 1, the steel bar bending machine in the related art includes a horizontal straightening device 100, a traction mechanism 200, a longitudinal straightening mechanism 300, a shearing mechanism 400, and a bending mechanism 500, which are arranged in order from left to right. The mechanism 200 includes two sets of power wheels 201 and two sets of compaction wheels 202. Among the two sets of compaction wheels 202, the compaction wheels 202 close to the shearing mechanism 400 also have a length counting function, and may be referred to as length measuring wheels 203.

During operation, as shown in FIG. 2, usually two reinforcing bars 10 are inserted into the grooves between the two sets of power wheels 201 and the compaction wheels 202 respectively. The compaction wheels 202 compact the reinforcing steel 10 on the power wheels 201. , Rely on the friction between the steel bar 10 and the power wheel 201 to feed. Because of the diameter deviation of the two reinforcing bars 10 (as shown in FIG. 3, after the pressing wheel 202 is pressed down, the reinforcing bar 10 on the right side is compacted, and the reinforcing bar 10 on the left side is not compacted) or Ribs, at least one of the two reinforcing bars 10 may slip because they are not compacted during the work, scratching the reinforcing bars 10 and the power wheel 201, causing the compaction wheel 202 and the power wheel 201 to be damaged too quickly; At least one of the reinforcing bars 10 slips or the two reinforcing bars 10 slip to different degrees, so the two reinforcing bars 10 are not synchronized when advancing, resulting in a large dimensional deviation and a large error in the length of the processed reinforcing bars 10. In addition, during the machining of the steel bar bending hoop, the steel bar 10 is easily twisted, and the direction of the twisting is shown by the arrowed curve in FIG. 4, which affects the aesthetics of the product and product sales, and has low economic efficiency. Increasing the pressing force of the pinch roller 202 can reduce slippage, but it will cause the steel bar 10 to be crushed and flattened. At the same time, excessive pressing force will cause the structure of the pinch wheel 202, the power wheel 201, and the support bearing. Damaged too quickly.

Summary of the Invention

The application provides a reinforcing bar bending machine, which can prevent the reinforcing bar from slipping.

An embodiment provides a steel bar bending machine including a traction wheel set, a traction meter long wheel set, and a traction straightening mechanism. The traction straightening mechanism is disposed between the traction wheel set and the traction meter long wheel set. Wherein, the traction straightening mechanism includes at least two driving wheels and at least one driven wheel, the driving wheels and the driven wheels are staggered, and adjacent driving wheels and the driven wheels are provided between The gap through which the reinforcing bars pass.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a structural schematic diagram of a reinforcing bar bending hoop machine in the related art; FIG.

2 is a sectional view taken along the line C-C in FIG. 1;

3 is an enlarged view of a partial structure at D in FIG. 2;

4 is a schematic diagram of a twisting direction of a reinforcing bar in a reinforcing bar bending hoop machine in the related art;

5 is a schematic structural diagram of a reinforcing bar bending machine provided by an embodiment of the present application;

FIG. 6 is a top view of a reinforcing bar bending machine provided by an embodiment of the present application; FIG.

7 is a cross-sectional view taken along A-A in FIG. 5;

8 is a sectional view taken along the line B-B in FIG. 5;

FIG. 9 is a schematic diagram of a shape of a reinforcing bar provided in a reinforcing bar bending machine according to an embodiment of the present application.

detailed description

This embodiment discloses a reinforcing bar bending hoop machine. As shown in FIG. 5 to FIG. 9, the steel bar bending machine includes a traction wheel group 3 and a traction meter long wheel group 4. A traction straightening mechanism is provided between the traction wheel group 3 and the traction meter long wheel group 4. The straight mechanism includes at least two driving wheels 5 and at least one driven wheel 6, the driving wheels 5 and the driven wheels 6 are located on both sides of the reinforcing steel 10 and are staggered, and the reinforcing steel 10 passes between the adjacent driving wheels 5 and the driven wheels 6. Too. The traction wheel set 3, the traction gauge long wheel set 4 and the traction straightening mechanism are all mounted on a box 8 and the box 8 is mounted on a frame 40. In one embodiment, the driving wheel 5 of the traction straightening mechanism is mounted on the box 8 through a driving shaft 51, and the driving shaft 51 is connected to the driving device; the driven wheel 6 is mounted on the box 8 through the driven shaft.

The driving wheel 5 and the driven wheel 6 are staggered, which can stably pull the reinforcing bar 10 while straightening the reinforcing bar 10 to prevent the reinforcing bar 10 from slipping and improve the accuracy of later counting and metering. The traction wheel group 3 includes at least a pair of driving wheels 5 and The driven wheel 6, the driving wheel 5 and the driven wheel 6 form a counter pressure wheel structure, which facilitates the threading and traction of the reinforcing steel 10. The steel bar bending hoop machine has a simple and reasonable structure, low cost, convenient installation, stable work, low noise, and energy saving.

Traction straightening mechanism includes a first group of traction straightening mechanism 1 and a second group of traction straightening mechanism 2, the movement path of the reinforcing bar 10 in the first group of traction straightening mechanism 1 and the movement of the second group of traction straightening mechanism 2 The path is set at a non-zero included angle. The arrow in FIG. 9 shows the direction in which the reinforcing bar 10 moves in a climbing shape during traction and straightening. That is, the center line of the driving wheel 5 of the first group of traction straightening mechanism 1 and the center line of the driving wheel 5 of the second group of traction straightening mechanism 2 are arranged at a predetermined angle, which can be stable while straightening the reinforcing bar 10 Ground rebar 10 is prevented to prevent the rebar 10 from being twisted when being towed, the surface quality of the rebar 10 is improved, and the efficiency is improved. At the same time, the horizontal straightening mechanism in the bending machine in the related technology is also omitted.

The driving device is connected to the driving shaft 51 of any driving wheel 5 in the traction straightening mechanism. As shown in FIG. 7, a driving gear 52 is provided on the driving shaft 51, and a gear meshing with the driving gear 52 is provided on one side of the driving gear 52. The transition gear 53 and the transmission gear 52 transmit the power of the driving device to the adjacent driving wheel 5 through the transition gear 53, and the transmission gear 52 is disposed in the casing 8. In an embodiment, the above-mentioned structure of the gear pair to transmit power may also be replaced with a structure such as a transmission chain or a timing belt, and the function of transmitting the driving force is the same.

As shown in FIGS. 5 and 6, the driving device includes a motor 91, a first timing pulley 92, a timing belt 93, and a second timing pulley 94. The timing belt 93 is wound around the first timing pulley 92 and the second timing pulley. The outer side of 94; the second timing pulley 94 is installed on the output shaft of the motor 91. The first timing pulley 92 is provided with a traction spindle 95. The first timing pulley 92 is connected to the traction straightening mechanism through the traction spindle 95. A driving shaft 51 of a driving wheel 5. Positioning grooves are provided on the first timing belt pulley 92 and the second timing belt pulley 94 to prevent the timing belt 93 from shifting, thereby ensuring the smoothness of power transmission.

The diameter of the first timing pulley 92 is larger than the diameter of the second timing pulley 94, and it has a deceleration effect, so that the high-speed rotation of the motor 91 becomes a relatively low-speed rotation when it is transmitted to the driving pulley 5, which can effectively increase the torque of the driving device.

Based on the above structure, the steel bar bending machine further includes at least one straightening and fine-tuning wheel group 7 to improve the straightening quality of the steel bar 10. As shown in FIG. 5, the straightening fine adjustment wheel set 7 is disposed between the second group of traction straightening mechanisms 2 and the traction gauge long wheel set 4, and is mounted on the box 8. The position of the straightening and fine-tuning wheel set 7 in the vertical direction is adjustable to meet the use requirements of the reinforcing bars 10 of different diameters.

The straightening and fine-tuning wheel set 7 includes at least two fine-tuning driving wheels 71 and at least one fine-tuning driven wheel 72 and a pressing slider 73. The fine-tuning driving wheel 71 and the fine-tuning driven wheels 72 are located on both sides of the steel bar 10 and The fine adjustment driving wheel 71 and the fine adjustment driven wheel 72 are staggered. As shown in FIG. 8, the fine adjustment driving wheel 71 is mounted on the casing 8 through the fine adjustment driving wheel shaft 711. As shown in FIG. 5, the center of the fine adjustment driven wheel 72 and the center of the driven wheel 6 of the second group of traction and straightening mechanism 2 are located on the same horizontal plane, so that the reinforcing bar 10 is more straight. The fine adjustment driven wheel 72 is installed on the pressing slider 73, and the pressing slider 73 is installed on the box 8 and can move along the box 8 in a vertical direction.

In actual installation, the straightening fine adjustment wheel group 7 and the second group of traction straightening mechanism 2 can be set according to the meshing pitch of the same adjacent transmission gear, so the straightening fine adjustment wheel group 7 and the second group of traction straightening mechanism 2 A driving wheel 5 can be shared at the junction position. In an embodiment, the straightening and fine-tuning wheel set 7 can also be installed independently without intersecting with the traction straightening mechanism 2 of the second group.

As shown in FIG. 8, the fine adjustment driving wheel 71 is provided with two grooves 74 through which the reinforcing steel 10 passes. The fine adjustment driven wheel 72 adopts a split structure, and includes two sub driven wheels 721 arranged close to the side of the wheel. Each sub driven wheel 721 is provided with an axle 75, and the number of the pressing sliders 73 is two. Each sub driven wheel 721 is installed on the corresponding pressing slider 73 through the wheel 75, and the two pressing sliders are respectively. 73 are independent of each other, and are all installed on the box body 8 and can move in a vertical direction along the box body 8. In the process of processing two-line reinforcing bars, when one or two reinforcing bars 10 sag, the corresponding driven roller 721 on the corresponding side can be appropriately depressed, and the reinforcing bars 10 can recover straight lines. When one or two reinforcing bars 10 are upturned, The sub-driven wheel 721 on the corresponding side is appropriately raised, and the reinforcing steel bar 10 can return to a straight line.

In order to achieve the effect of energy saving and reduce the volume of the equipment, the first group of traction straightening mechanism 1, the second group of traction straightening mechanism 2, the traction wheel group 3, the traction gauge long wheel group 4 and the straightening fine adjustment wheel group 7 are all composed of Driven by the same drive.

The reinforcing bar bending machine provided in this embodiment further includes a material guiding mechanism 50, a shearing mechanism 20, and a bending mechanism 30. The material guiding mechanism 50 is disposed on one side of the traction wheel set 3 and is configured to introduce the reinforcing steel 10, and the shearing mechanism. 20 is provided between the traction gauge long wheel set 4 and the bending mechanism 30. The working process of the steel bar bending machine is: the steel bar 10 reaches the traction wheel group 3 through the guide mechanism 50, and the driven wheel 6 and the driving wheel 5 of the traction wheel group 3 cooperate to compact the steel bar 10; any driving wheel of the traction straightening mechanism 5 Rotate under the drive of the driving device, so that the traction steel bar 10 enters the first group of traction straightening mechanism 1 and the second group of traction straightening mechanism 2; ; Set the straightening length required for the steel bar 10, start the motor 91, and transmit the power through the timing belt 93 to drive the traction spindle 95 to rotate. The traction spindle 95 drives the driving shaft 51 to rotate through the meshing of the transmission gear 52 and the transition gear 53, thereby achieving All the driving wheels 5 rotate synchronously; the straightened steel bars 10 enter the shearing mechanism 20 and the bending mechanism 30 in sequence.

Claims (10)

A steel bar bending machine includes a traction wheel set (3), a traction gauge long wheel set (4), and a traction straightening mechanism, and the traction straightening mechanism is provided on the traction wheel set (3) and the traction gauge Between long wheel sets (4), wherein the traction straightening mechanism includes at least two driving wheels (5) and at least one driven wheel (6), the driving wheel (5) and the driven wheel (6) Staggered, a gap is provided between the adjacent driving wheel (5) and the driven wheel (6) through which the reinforcing steel (10) passes. The reinforcing bar bending machine according to claim 1, wherein the traction straightening mechanism comprises a first group of tractions which are sequentially arranged between the traction wheel set (3) and the traction gauge long wheel set (4) The straightening mechanism (1) and the second group of traction straightening mechanisms (2), the movement path of the reinforcing bar (10) in the first group of traction straightening mechanisms (1) and the reinforcing bar (10) are in The non-zero included angle between the movement paths in the second group of traction straightening mechanisms (2) is described. The reinforcing bar bending machine according to claim 2, further comprising at least one set of straightening and fine adjusting wheels (7), the straightening and fine adjusting wheels (7) are arranged in the second group of traction and straightening mechanisms ( 2) Between the traction gauge long wheel set (4), the position of the straightening fine adjustment wheel set (7) is adjustable in the vertical direction. The reinforcing bar bending machine according to claim 3, wherein the straightening fine adjustment wheel set (7) comprises at least two fine adjustment driving wheels (71) and at least one fine adjusting driven wheel (72), The adjusting driving wheel (71) and the fine adjusting driven wheel (72) are staggered. The steel bar bending machine according to claim 4, wherein the center of the finely-adjusted driven wheel (72) and the center of the driven wheel (6) in the second group of traction straightening mechanisms (2) are located On the same level. The steel bar bending machine according to claim 4, further comprising a box body (8), the straightening fine adjustment wheel set (7) further comprising a pressing slider (73), and the fine adjustment driven wheel (72) Mounted on the compression slider (73), the compression slider (73) is mounted on the box (8) and is arranged to move in a vertical direction along the box (8). The steel bar bending machine according to claim 6, wherein the fine adjustment driving wheel (71) is provided with two grooves (74) through which the steel bar (10) passes; the fine adjustment driven wheel (72) includes two sub driven wheels (721), each of which is provided with an axle (75), and the number of the pressing slider (73) is two, and The driven wheels (721) are respectively mounted on the pressing slider (73) through the wheel shaft (75), and the two pressing sliders (73) are arranged to be independently installed on the casing (8). ) And move along the box (8) in the vertical direction. The reinforcing bar bending machine according to any one of claims 1 to 7, further comprising a driving device, a transmission gear (52), and a transition gear (53), wherein the driving wheel (5) is provided with a driving shaft (51) The driving device is connected to the driving shaft (51) of any of the driving wheels (5) in the traction straightening mechanism, and the transmission gear (52) is arranged on the driving shaft (51) The transition gear (53) is arranged to mesh with the transmission gear (52) to transmit the power of the driving device to the adjacent driving wheel (5). The reinforcing bar bending machine according to claim 8, wherein the driving device comprises a motor (91), a first timing belt pulley (92), a timing belt (93), and a second timing belt pulley (94), A timing belt (93) is wound on the outside of the first timing belt pulley (92) and the second timing belt pulley (94); the second timing belt pulley (94) is arranged to be mounted on the motor (91) ) Output shaft, the first timing belt pulley (92) is provided with a traction spindle (95), the first timing belt pulley (92) and the traction straightening mechanism through the traction spindle (95) The driving shaft (51) of any one of the driving wheels (5) is connected. The rebar bending machine according to claim 9, wherein a diameter of the first timing pulley (92) is larger than a diameter of the second timing pulley (94).

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