CN210475110U

CN210475110U - Roll bending machine

Info

Publication number: CN210475110U
Application number: CN201921350241.3U
Authority: CN
Inventors: 居志明
Original assignee: Nanjing Prendi Machinery Co Ltd
Current assignee: Nanjing Prendi Machinery Co Ltd
Priority date: 2019-08-19
Filing date: 2019-08-19
Publication date: 2020-05-08
Anticipated expiration: 2029-08-19

Abstract

The utility model discloses a roll bender uses in the technical field of section bar processing, and its technical scheme main points are: the automatic feeding device comprises a workbench, two driving rotating wheels, a pre-pressing wheel and a feeding device for driving the pre-pressing wheel to move along the width direction of the workbench, wherein a driving motor for driving the driving rotating wheels to rotate is arranged in an inner cavity of the workbench, and a driving mechanism for driving the driving rotating wheels to move along the length direction of the workbench is arranged in the inner cavity of the workbench; the driving mechanism comprises an installation block fixedly arranged in the inner cavity of the workbench along the length direction, two driving motors are connected to the installation block in a sliding manner, a stepping motor is arranged in the inner cavity of the workbench, a push rod is arranged between the output end of the stepping motor and the driving motors, and two ends of the push rod are respectively hinged with the output end of the stepping motor and the driving motors; has the technical effects that: the operator can conveniently move the position of the driving rotating wheel to bend the section into the arc required by production.

Description

Roll bending machine

Technical Field

The utility model relates to a technical field of section bar processing, in particular to bending roll machine.

Background

The roll bending machine is also called as an arc bending machine, and Chinese patent with publication number CN208527922U discloses a steel bar arc bending machine for arc correction, which comprises a traction wheel set driven by a servo motor and a pre-pressing bending wheel controlled by a feeding device for pre-pressing, wherein the traction wheel set comprises two traction wheels, the traction wheels are respectively connected through mandrels, the mandrels are hinged and fixed on a frame, one mandrel is driven by the servo motor, and the other mandrel moves at the same speed with the mandrel through a transmission device. When the device works, the traction wheel set is contacted with the outer arc edge of the steel bar curved part, the inner arc edge of the steel bar curved part is contacted with the pre-pressing curved wheel, and the pre-pressing curved wheel controls the pre-pressing depth through the feeding device.

However, the distance between the two traction wheels and the pre-pressing bending wheel on the reinforcing steel bar bending machine for arc correction is fixed, the radian of the pre-pressing bending wheel of the reinforcing steel bar is controlled by adjusting the position of the traction wheels, and the requirement of production and processing is difficult to meet.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a roll bending machine, its advantage is: the operator of being convenient for removes through the position to two initiative runners, realizes carrying out the crooked of different radians to the section bar, has satisfied the demand of production.

The above technical purpose of the present invention can be achieved by the following technical solutions: a roll bending machine comprises a workbench, two driving rotating wheels and a pre-pressing wheel which are arranged above the workbench, and a feeding device for driving the pre-pressing wheel to move between the two driving rotating wheels, wherein the pre-pressing wheel moves along the width direction of the workbench, the two driving rotating wheels are symmetrically arranged around the pre-pressing wheel, a driving motor for driving the driving rotating wheels to rotate is arranged in an inner cavity of the workbench, a driving mechanism for driving the driving rotating wheels to move along the length direction of the workbench is arranged in the inner cavity of the workbench, and a strip-shaped through groove for the two driving rotating wheels to move is formed in the workbench along the length direction; actuating mechanism includes and sets firmly along length direction the installation piece in the inner chamber of workstation, two driving motor slides and connects on the installation piece, install step motor in the inner chamber of workstation, step motor symmetry sets up two between the driving motor, be equipped with the push rod between step motor's output and the driving motor, the both ends of push rod are connected with step motor's output and driving motor are articulated respectively.

Through above-mentioned technical scheme, when the operator need remove the position of two initiative runners and control the crooked radian of initiative runner and pre-compaction wheel pair section bar, the operator starts step motor, step motor's output drive push rod carries out linear motion, two push rods are rotatory around the articulated department of push rod and motor output, and promote driving motor and remove along the length direction of installation piece, make the position of initiative runner take place to remove, make the interval along the horizontal direction between initiative runner and the pre-compaction wheel change. Set up like this, the operator of being convenient for removes the position of initiative runner at workstation length direction to the operator of being convenient for places the section bar and rotates the initiative and pre-compaction between the wheel with the section bar and bend into required radian, has satisfied operator's processing demand, makes the initiative rotate and pre-compaction wheel be applicable to the radian of bending the section bar into the difference, has enlarged the application scope of this roll bending machine.

The utility model discloses further set up to: the automatic stepping machine is characterized in that two moving blocks are connected to the workbench in a sliding mode along the length direction, a fixed block is fixedly connected to one side, opposite to each other, of each moving block on the workbench, a screw rod penetrates through the fixed block and is fixedly connected with the moving blocks, nuts are connected to two sides of the fixed block on the screw rod in a threaded mode, a micro switch used for controlling the stepping motor is installed on one side, facing the driving rotating wheel, of each moving block, and when the driving rotating wheel touches the micro switch, the stepping motor stops working.

According to the technical scheme, the micro switch is called a sensitive switch, and is a switch in which external mechanical force acts on an action reed through a transmission element to enable a fixed contact and a movable contact at the tail end of the switch to be quickly connected or disconnected. When the position of the active rotating wheel is moved, an operator moves the moving block to a required position through the matching of the screw and the nut, then the stepping motor is started to drive the driving motor to drive the active rotating wheel to move until the active rotating wheel touches the micro switch, and at the moment, the micro switch controls the stepping motor to stop working. By the arrangement, the micro switch is timely touched after the position of the active rotating wheel is moved to the required position, so that the stepping motor is controlled to stop driving the driving motor to drive the active rotating wheel to move, and the moving accuracy of the active rotating wheel is ensured.

The utility model discloses further set up to: two groups of graduated scales are symmetrically arranged on the workbench along the length direction relative to the feeding device, and the graduated scales are perpendicular to the moving block.

Through the technical scheme, the arrangement of the graduated scale facilitates that an operator directly moves the moving block to a required position by directly contrasting the graduated scale when moving the position of the moving block, so that the moving accuracy of the moving block is ensured, and the moving efficiency of the moving block is improved.

The utility model discloses further set up to: the mounting block has seted up the spout towards one side of driving motor along length direction, driving motor's bottom rigid coupling has the slider, the slider restriction is in the spout.

Through the technical scheme, the slide block and the slide groove are arranged, so that when the stepping motor pushes the driving motor to move, the driving motor connected with the slide block always moves along the slide groove, the moving direction of the driving motor is guided, and the stability of the driving motor in moving is guaranteed.

The utility model discloses further set up to: one side of the sliding block facing the groove bottom of the sliding groove is connected with a ball in a rolling mode, and the ball is abutted against the groove bottom of the sliding groove.

Through above-mentioned technical scheme, the setting of ball for sliding friction between slider and the spout is transformed into rolling friction, has reduced the frictional force between slider and the spout, thereby is convenient for the push rod to promote driving motor and remove along the installation piece.

The utility model discloses further set up to: the utility model discloses a section bar supporting device, including workstation, pivot, mount pad, pivot.

Through above-mentioned technical scheme, the setting of back shaft need not the handheld section bar that is crooked between initiative runner and pre-compaction wheel of operator, has played the effect of supporting to the section bar that is crooked between initiative runner and pre-compaction wheel, has saved the manpower.

The utility model discloses further set up to: the two supporting shafts are symmetrically arranged relative to the pre-pressing wheel and are obliquely arranged towards the direction far away from the pre-pressing wheel.

Through above-mentioned technical scheme, the section bar takes place crooked and crooked towards the direction of pre-compaction wheel along with pre-compaction wheel moves between two initiative runners, and the both ends of section bar shorten along with the bending distance, and the interval between two back shafts reduces from the direction that is close to the pre-compaction wheel gradually this moment to make the section bar support on the back shaft all the time at crooked in-process, guaranteed the stability of supporting the section bar.

The utility model discloses further set up to: and the shaft surfaces of the driving rotating wheel and the pre-pressing wheel are fixedly provided with metal wear-resistant layers made of alloy steel.

Through above-mentioned technical scheme, alloy steel has very high hardness and wearability, chooses alloy steel for use to make the metal wearing layer, is favorable to increasing the wearability of initiative runner and pre-compaction wheel axial plane, has reduced the possibility that the surface friction with the section bar and is worn and torn when initiative runner and pre-compaction wheel are long-term to the section bar bending, is favorable to prolonging the life of initiative runner and pre-compaction wheel.

To sum up, the utility model discloses following beneficial effect has:

1. the positions of the two driving rotating wheels can be conveniently adjusted by an operator according to the processing requirement, so that the pre-pressing wheel and the driving rotating wheels can bend the section into corresponding radians;

2. the accuracy of carrying out position movement on the driving rotating wheel is enhanced, so that the radian of the section bending by the pre-pressing wheel and the driving rotating wheel is the same as the production requirement, and the accuracy of the radian of the section bending is ensured.

Drawings

Fig. 1 is a schematic view of the overall structure of the present embodiment.

Fig. 2 is a schematic structural diagram of a driving mechanism in the inner cavity for embodying the table in the present embodiment.

Fig. 3 is an enlarged view of a portion a in fig. 2.

Fig. 4 is a schematic structural diagram of a metal wear-resistant layer on the driving wheel in this embodiment.

Fig. 5 is a schematic structural diagram for embodying the slide groove and the slide block on the mounting block and the ball on the slide block in the present embodiment.

Reference numerals: 1. a work table; 2. a driving runner; 3. a pre-pressing wheel; 4. a feed device; 5. a cylinder; 6. a drive motor; 7. an inner cavity; 8. a drive mechanism; 9. a strip-shaped through groove; 10. mounting blocks; 11. a stepping motor; 12. a push rod; 13. a moving block; 14. a fixed block; 15. a screw; 16. a nut; 17. a microswitch; 18. a graduated scale; 19. a chute; 20. a slider; 21. a ball bearing; 22. a mounting seat; 23. a support shaft; 24. a metal wear layer.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example (b): a roll bending machine, refer to fig. 1, comprising a worktable 1, two driving wheels 2 and a pre-pressing wheel 3 arranged above the worktable 1, and a feeding device 4 driving the pre-pressing wheel 3 between the two driving wheels 2 and moving along the width direction of the worktable 1. In this embodiment, the feeding device 4 comprises a cylinder 5, and the pre-pressing wheel 3 is rotatably connected to the output end of the cylinder 5. The two driving rotating wheels 2 are symmetrically arranged about the pre-pressing wheel 3, and a driving motor 6 (figure 2) for rotating the driving rotating wheels 2 is arranged in an inner cavity 7 (figure 2) of the workbench 1.

Referring to fig. 1, a supporting shaft 23 for supporting the profile is arranged on each of the sides of the two driving rotating wheels 2, which face away from each other, of the workbench 1, mounting seats 22 are welded to the two ends of the supporting shaft 23 of the workbench 1, and the two ends of the supporting shaft 23 are respectively rotatably connected to the two mounting seats 22. The two support shafts 23 are symmetrically disposed about the pre-pressing wheel 3 and obliquely disposed toward a direction away from the pre-pressing wheel 3. During operation, the operator places the section bar between two initiative runners 2 and pre-compaction wheel 3 and supports on back shaft 23, then the operator starts driving motor 6 and drives initiative runner 2 rotatory to start 5 drive pre-compaction wheels 3 and remove along the width direction of workstation 1 of cylinder, make the section bar become required radian towards one side of pre-compaction wheels 3 by the bending, the section bar is towards one side sunken bending of pre-compaction wheels 3. In the process of bending the section bar, the distance between the two ends of the section bar is gradually reduced, and the distance between the two ends of the section bar is gradually reduced as the distance between the two support shafts 23 is gradually reduced towards the pre-pressing wheel 3, so that the section bar is always supported on the support shafts 23, the section bar is not required to be manually supported, and the stability of the section bar support is ensured.

The welding parcel has one deck metal wearing layer 24 (figure 4) on the axial plane of initiative runner 2 and pre-compaction wheel 3, metal wearing layer 24 is for selecting alloy steel to make for use, and alloy steel has very high hardness and wearability, selects for use alloy steel to make metal wearing layer 24's setting, has reduced the long-term surperficial friction with the section bar and the possibility of being worn and torn when carrying out the bending to the section bar of initiative runner 2 and pre-compaction wheel 3, is favorable to prolonging the life of initiative runner 2 and pre-compaction wheel 3.

Referring to fig. 2, a driving mechanism 8 for driving the driving wheels 2 to move along the length direction of the workbench 1 is arranged in an inner cavity 7 of the workbench 1, and a strip-shaped through groove 9 (fig. 1) for the two driving wheels 2 to move is formed in the workbench 1 along the length direction; the driving mechanism 8 comprises an installation block 10 fixedly arranged in the inner cavity 7 of the workbench 1 along the length direction, a sliding groove 19 is formed in one side, facing the driving motor 6, of the installation block 10 along the length direction, a sliding block 20 (shown in figure 5) is welded at the bottom of the driving motor 6, the sliding block 20 is limited in the sliding groove 19, and the driving motor 6 is connected to the installation block 10 in a sliding mode through the matching of the sliding block 20 and the sliding groove 19.

Referring to fig. 2, two ends of the mounting block 10 along the length direction are respectively welded on the side wall of the inner cavity 7 of the workbench 1, and the output ends of the two driving motors 6 are respectively coaxially connected with the driving rotating wheel 2. Install a step motor 11 in the inner chamber 7 of workstation 1, step motor 11 installs the below at installation piece 10, and step motor 11 symmetry sets up between two driving motor 6, and step motor 11's output is worn to establish and is equipped with push rod 12 between installation piece 10 and the driving motor 6, and the both ends of push rod 12 are connected with step motor 11's output and driving motor 6 are articulated respectively.

Referring to fig. 2, in operation, according to the requirement of production and processing, an operator starts the stepping motor 11, and the output end of the stepping motor 11 makes linear motion, so that the two push rods 12 rotate around the hinge joint between the push rod 12 and the output end of the stepping motor 11, at this time, the push rod 12 rotates around the hinge joint between the push rod 12 and the driving motor 6, and drives the driving motor 6 and a sliding block 20 (fig. 5) welded on the driving motor 6 to move along a sliding groove 19 (fig. 5) on the mounting block 10, so that the distance between the driving rotating wheel 2 and the pre-pressing wheel 3 on the workbench 1 changes, so that the profile is bent to the radian required for production between the driving rotating wheel 2 and the pre-pressing wheel 3. Since the slide block 20 is connected with the ball 21 (fig. 5) in a rolling manner on the side facing the bottom of the slide groove 19, the ball 21 abuts against the bottom of the slide groove 19. The balls 21 are arranged so that sliding friction between the slider 20 and the slide groove 19 is converted into rolling friction when the slider 20 moves along the slide groove 19, which is beneficial to reducing the friction resistance between the slider 20 and the slide groove 19.

Referring to fig. 2 and 3, two moving blocks 13 are connected to the workbench 1 in a sliding manner along the length direction, a fixing block 14 is welded to one side of the workbench 1, which is opposite to the two moving blocks 13, a screw 15 penetrates through the fixing block 14, the screw 15 and one side of the moving block 13, which is opposite to the driving rotating wheel 2, are welded and fixed, nuts 16 are connected to two sides of the fixing block 14 on the screw 15 in a threaded manner, and a micro switch 17 for controlling the stepping motor 11 is installed on one side of the moving block 13, which faces the driving rotating wheel 2. The microswitch 17 is also called a sensitive switch, and is a switch in which an external mechanical force acts on an action reed through a transmission element to quickly connect or disconnect a fixed contact and a movable contact at the tail end of the microswitch. Two sets of scales 18 are symmetrically arranged on the workbench 1 along the length direction relative to the feeding device 4, and in the embodiment, the moving block 13 is positioned above the scales 18 and is vertical to the moving block 13.

Referring to fig. 2 and 3, before the stepping motor 11 is driven to the driving motor 6 and the driving pulley 2, the operator rotates the nuts 16 in a direction away from the fixed block 14, then moves the moving block 13 by the screw 15, and moves the moving block 13 to a desired position against the scale 18, and then the operator screws the two nuts 16 against the fixed block 14, so that the position of the moving block 13 is fixed. Then, an operator starts the stepping motor 11 through the micro switch 17 to work, the stepping motor 11 drives the driving motor 6 and the driving rotating wheel 2 to move towards the moving block 13 along the length direction of the workbench 1, and when the driving rotating wheel 2 touches the micro switch 17, the stepping motor 11 stops working. Set up like this, be favorable to guaranteeing the precision to the removal of initiative runner 2 to guarantee that the radian that pre-compaction wheel 3 and initiative runner 2 are crooked accords with the production requirement with the section bar, guaranteed the quality of processing.

The method comprises the following operation steps: before working, an operator moves the position of the driving wheel 2 according to production requirements. Before moving, an operator moves the moving block 13 to a required position by matching the nut 16 and the screw 15 with the graduated scale 18, then the stepping motor 11 is started, the output end of the stepping motor 11 drives the push rod 12 to move, and the two ends of the push rod 12 rotate around the hinged position of the push rod 12, the stepping motor 11 and the driving motor 6, so that the driving motor 6 drives the driving rotating wheel 2 to move along the strip-shaped through groove 9 on the workbench 1 until the driving rotating wheel 2 touches the micro switch 17 on the moving block 13, the stepping motor 11 stops working, and the position of the driving rotating wheel 2 stops moving. Then the operator places the section bar between two initiative runners 2 and pre-compaction wheel 3 and supports on back shaft 23 to start driving motor 6 drive initiative runner 2 rotatory, start 5 drive pre-compaction wheels 3 simultaneously and move along the width direction orientation of workstation 1 near the direction of initiative runner 2, the section bar is extruded by pre-compaction wheel 3 between rotatory initiative runner 2 and pre-compaction wheel 3 and is crooked into required radian this moment, the demand of having satisfied production and processing.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. A roll bending machine which is characterized in that: the device comprises a workbench (1), two driving rotating wheels (2) and a pre-pressing wheel (3) which are arranged above the workbench (1), and a feeding device (4) for driving the pre-pressing wheel (3) to move between the two driving rotating wheels (2), wherein the pre-pressing wheel (3) moves along the width direction of the workbench (1), the two driving rotating wheels (2) are symmetrically arranged relative to the pre-pressing wheel (3), a driving motor (6) for driving the driving rotating wheels (2) to rotate is arranged in an inner cavity (7) of the workbench (1), a driving mechanism (8) for driving the driving rotating wheels (2) to move along the length direction of the workbench (1) is arranged in the inner cavity (7) of the workbench (1), and a strip-shaped through groove (9) for the two driving rotating wheels (2) to move is formed in the workbench (1) along the length direction;

actuating mechanism (8), including setting firmly along length direction installation piece (10), two in inner chamber (7) of workstation (1) slide and connect on installation piece (10), install step motor (11) in inner chamber (7) of workstation (1), step motor (11) symmetry sets up two between drive motor (6), be equipped with between the output of step motor (11) and drive motor (6) push rod (12), the both ends of push rod (12) are connected with step motor's (11) output and drive motor (6) are articulated respectively.

2. The roll bending machine according to claim 1, wherein: the automatic stepping mechanism is characterized in that two moving blocks (13) are connected to the workbench (1) in a sliding mode along the length direction, fixed blocks (14) are fixedly connected to one sides, back to back, of the two moving blocks (13) on the workbench (1), screw rods (15) penetrate through the fixed blocks (14), the screw rods (15) are fixedly connected with the moving blocks (13), nuts (16) are connected to the two sides of the fixed blocks (14) on the screw rods (15) in a threaded mode, micro switches (17) used for controlling the stepping motors (11) are installed on the moving blocks (13) towards one sides of the driving rotating wheels (2), and when the driving rotating wheels (2) touch the micro switches (17), the stepping motors (11) stop working.

3. The roll bending machine according to claim 2, wherein: two groups of graduated scales (18) are symmetrically arranged on the workbench (1) along the length direction relative to the feeding device (4), and the graduated scales (18) are vertical to the moving block (13).

4. The roll bending machine according to claim 1, wherein: the mounting block (10) is provided with a sliding groove (19) towards one side of the driving motor (6) along the length direction, a sliding block (20) is fixedly connected to the bottom of the driving motor (6), and the sliding block (20) is limited in the sliding groove (19).

5. The roll bending machine according to claim 4, wherein: the sliding block (20) is connected with a ball (21) in a rolling mode towards one side of the bottom of the sliding groove (19), and the ball (21) is abutted against the bottom of the sliding groove (19).

6. The roll bending machine according to claim 1, wherein: the utility model discloses a section bar support device, including workstation (1), workstation (2) are equipped with back shaft (23) that are used for supporting the section bar on workstation (1) on one side of carrying on the back of the body of two initiative runners (2), workstation (1) has mount pad (22) at the both ends rigid coupling of back shaft (23), the both ends of back shaft (23) are rotated respectively and are connected on two mount pads (22).

7. The roll bending machine according to claim 6, wherein: the two supporting shafts (23) are symmetrically arranged relative to the pre-pressing wheel (3) and are obliquely arranged towards the direction far away from the pre-pressing wheel (3).

8. The roll bending machine according to claim 1, wherein: and the shaft surfaces of the driving rotating wheel (2) and the pre-pressing wheel (3) are fixedly provided with metal wear-resistant layers (24), and the metal wear-resistant layers (24) are made of alloy steel.