CN219401807U - Three-roller plate bending machine - Google Patents

Abstract

The utility model provides a three-roller plate bending machine, which relates to the technical field of plate processing and comprises a bottom plate, wherein two supporting plates are welded at the upper end of the bottom plate, square holes are formed in one side of each supporting plate in a penetrating manner, an upper roller is arranged between the two supporting plates, two lower rollers are arranged below the upper rollers, a second motor is fixedly arranged at the upper end of the bottom plate, a rotating rod is fixedly arranged at the output end of the second motor, a driving gear II is fixedly arranged at the outer side of the rotating rod and at the positions of the two ends, racks are meshed at one end of each driving gear II, a baffle is arranged between the two racks, and two ends of each baffle are respectively fixed with one ends of the two racks. According to the utility model, through the arrangement of the motor II and the baffle, the problems of uneven two ends, oblique joint lines and the like of the steel pipe after the rolling is completed are avoided, so that the qualification rate of the three-roller rolling machine is improved.

Description

Three-roller plate bending machine

Technical Field

The utility model relates to the technical field of plate processing, in particular to a three-roller plate bending machine.

Background

The upper roller of the three-roller veneer reeling machine vertically moves up and down through the action of hydraulic oil in the hydraulic cylinders on the pistons at the central symmetrical positions of the two lower rollers, and the final gear of the auxiliary transmission device drives gears on the two lower rollers to mesh for rotating, so that torque is provided for reeling the metal plate, the metal plate is continuously bent for a plurality of times, permanent plastic deformation is generated, and the metal plate is reeled into the required cylinder, cone and other shapes, but the three-roller veneer reeling machine has some defects in the use process.

In the prior art, for example, chinese patent No.: the three-roller plate bending machine of CN102632115B has two lower rollers mounted separately on one swinging block, the base of the swinging block is one rigid beam, and the lower rollers and the carrier roller are mounted on the rigid beam with swinging hinged seat below. The two lower roller swinging blocks are all installed on the same base in a hinged mode, the positions of the two lower roller swinging blocks are symmetrical to the plane of the up-down movement track of the central line of the upper roller, and the swinging of the two lower roller swinging blocks is controlled by an oil cylinder. The two lower rollers can swing at will, the center distance of each other can be adjusted, and meanwhile, the two lower rollers are always supported by the carrier roller.

At present, when a steel plate is fed between an upper roller and a lower roller by a three-roller plate bending machine on the market, the steel plate is easy to skew under the action of friction force, two ends of a steel pipe after plate bending is finished are uneven, and a joint line is skew, so that the welding and subsequent use of the joint of the steel pipe are influenced.

Disclosure of Invention

The utility model aims to solve the problems that when a three-roller plate bending machine in the prior art feeds a steel plate between an upper roller and a lower roller, the steel plate is easy to skew under the action of friction force, so that two ends of a steel pipe after plate bending is finished are uneven, and a joint line is skew, thereby influencing welding and subsequent use of a joint of the steel pipe.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: the three-roller plate bending machine comprises a bottom plate, two support plates are welded at the upper end of the bottom plate, square holes are formed in one side of each support plate in a penetrating mode, two upper rollers are arranged between the support plates, two lower rollers are arranged below the upper rollers, a second motor is fixedly arranged at the upper end of the bottom plate, a rotating rod is fixedly arranged at the output end of the second motor, a driving gear II is fixedly arranged at the outer side of the rotating rod and located at the positions of two ends, racks are meshed at one end of each driving gear II, a baffle is arranged between the racks, and two ends of the baffle are respectively fixed with one ends of the racks.

Preferably, the upper end welding of bottom plate has limiting plate one, the upper end welding of bottom plate has limiting plate two, one side of baffle with one side sliding connection of limiting plate one, the opposite side of baffle with one side sliding connection of limiting plate two.

Preferably, a hydraulic cylinder is welded in the square hole, a first bearing seat is fixedly arranged at the lower end of the hydraulic cylinder, and two ends of the upper roller are respectively connected with the two first bearing seats in a rotating mode.

Preferably, two round holes are formed in one side of the supporting plate in a penetrating mode, and two ends of the lower roller are respectively connected with the inner portions of the four round holes in a rotating mode.

Preferably, a first motor is fixedly arranged at the upper end of the bottom plate, a first driving gear is fixedly arranged at the output end of the first motor, driven gears are meshed with two ends of the first driving gear, and one ends of the two lower rollers are respectively fixed with the two driven gears.

Preferably, the outer side of the rotating rod is rotatably connected with two second bearing seats, and the lower ends of the two second bearing seats are fixed with the upper end of the bottom plate.

Compared with the prior art, the utility model has the advantages and positive effects that,

1. according to the utility model, through the arrangement of the motor II and the baffle, the problems of uneven two ends, oblique joint lines and the like of the steel pipe after the rolling is completed are avoided, so that the qualification rate of the three-roller rolling machine is improved.

2. According to the utility model, the baffle is fixed at the current position through the arrangement of the first limiting plate and the second limiting plate, the position of the baffle cannot be deviated due to larger external force, the distance between the first limiting plate and the lower roller is a fixed value, the distance between the first limiting plate and the lower roller can be calculated easily, when the first motor is controlled to coil the steel plate back and forth on the plate bending machine, the rotation time of the first motor is calculated conveniently, the steel plate cannot be separated from the plate bending machine due to the fact that one end of the steel plate moves between the two lower rollers, and potential safety hazards are avoided.

Drawings

FIG. 1 is a schematic perspective view of a three-roll bending machine according to the present utility model;

FIG. 2 is a schematic diagram of a three-roll plate bending machine according to the present utility model;

FIG. 3 is a schematic view of a three-roll plate bending machine according to the present utility model;

fig. 4 is a side view of a part of the structure of the three-roller plate bending machine according to the present utility model.

Legend description: 1. a bottom plate; 2. a support plate; 3. square holes; 4. a hydraulic cylinder; 5. a first bearing seat; 6. an upper roller; 7. a motor I; 8. a first driving gear; 9. a driven gear; 10. a lower roller; 11. a motor II; 12. a rotating lever; 13. a driving gear II; 14. a rack; 15. a baffle; 16. a first limiting plate; 17. a limiting plate II; 18. and a bearing seat II.

Detailed Description

In order that the above objects, features and advantages of the utility model will be more clearly understood, a further description of the utility model will be rendered by reference to the appended drawings and examples. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, however, the present utility model may be practiced otherwise than as described herein, and therefore the present utility model is not limited to the specific embodiments of the disclosure that follow.

In the embodiment 1, as shown in fig. 1-4, the utility model provides a three-roller plate bending machine, which comprises a bottom plate 1, wherein two support plates 2 are welded at the upper end of the bottom plate 1, one side of each support plate 2 is provided with a square hole 3 in a penetrating manner, an upper roller 6 is arranged between the two support plates 2, two lower rollers 10 are arranged below each upper roller 6, a second motor 11 is fixedly arranged at the upper end of the bottom plate 1, a rotating rod 12 is fixedly arranged at the output end of the second motor 11, a driving gear 13 is fixedly arranged at the outer side of the rotating rod 12 and at the positions of the two ends, racks 14 are meshed at one end of each driving gear 13, a baffle 15 is arranged between the two racks 14, two ends of each baffle 15 are respectively fixed with one end of each rack 14, a hydraulic cylinder 4 is welded inside each square hole 3, a first bearing seat 5 is fixedly arranged at the lower end of each hydraulic cylinder 4, and two ends of each upper roller 6 are respectively connected with the inner parts of the first bearing seats 5 in a rotating manner.

The effect that its whole embodiment 1 reaches is, before the veneer reeling machine operation, need place the assigned position with the steel sheet, first start motor No. two 11, make motor No. two 11's output drive dwang 12 make clockwise rotation, thereby drive two driving gear two 13 make clockwise rotation, two driving gear two 13 can drive two racks 14 respectively and upwards move, thereby drive baffle 15 upwards motion, push the steel sheet between upper roller 6 and two lower rollers 10, make the one end of steel sheet align baffle 15's one end, make motor No. two 11 reverse again, make motor No. two 11's output drive dwang 12 make anticlockwise rotation, and then drive two driving gear two 13 make anticlockwise rotation, make two racks 14 downwards motion, thereby drive baffle 15 downwards motion, when baffle 15's upper end is less than the lower extreme of steel sheet, close motor No. 11, can begin the veneer reeling operation, make the steel pipe after the veneer reeling is accomplished, can not cause both ends uneven and seam line scheduling problem, thereby the qualification rate of three-roller veneer reeling machine has been improved.

In the embodiment 2, as shown in fig. 1-4, a first limiting plate 16 is welded at the upper end of the bottom plate 1, a second limiting plate 17 is welded at the upper end of the bottom plate 1, one side of the baffle 15 is slidably connected with one side of the first limiting plate 16, the other side of the baffle 15 is slidably connected with one side of the second limiting plate 17, two bearing seats 18 are rotatably connected to the outer side of the rotating rod 12, the lower ends of the two bearing seats 18 are fixed to the upper end of the bottom plate 1, two round holes are formed in one side of the supporting plate 2 in a penetrating manner, two ends of the two lower rollers 10 are rotatably connected with the interiors of the four round holes respectively, a first motor 7 is fixedly arranged at the upper end of the bottom plate 1, a first driving gear 8 is fixedly arranged at the output end of the first motor 7, driven gears 9 are meshed with two ends of the first driving gear 8, and one ends of the two lower rollers 10 are respectively fixed to the two driven gears 9.

The effect achieved in the whole embodiment 2 is that before the steel plate is not completely aligned, when one corner of the steel plate contacts the baffle 15, force still needs to be applied to the steel plate, the other corner also contacts the baffle 15, and the larger force received by the baffle 15 from the steel plate is transferred to the first limit plate 16 and the second limit plate 17, so that the baffle 15 is fixed at the current position and cannot deviate in position due to larger external force, the distance between the first limit plate 16 and the lower roller 10 is a fixed value, the distance of the part of the steel plate beyond the lower roller 10 can be calculated easily, the rotation time of the first motor 7 is calculated conveniently when the first motor 7 is controlled to curl the steel plate back and forth on the plate bending machine, the steel plate is not separated from the plate bending machine due to the fact that one end of the steel plate moves between the two lower rollers 10, and potential safety hazards are avoided.

Working principle: before the plate bending machine works, the steel plate is required to be placed at a designated position, the second motor 11 is started firstly, the output end of the second motor 11 drives the rotating rod 12 to rotate clockwise, so that the two driving gears 13 are driven to rotate clockwise, the two driving gears 13 respectively drive the two racks 14 to move upwards, the baffle 15 is driven to move upwards, the steel plate is pushed between the upper roller 6 and the two lower rollers 10, before the steel plate is not completely aligned, after one corner of the steel plate contacts the baffle 15, the other corner still needs to be applied with force, the baffle 15 is also contacted with the baffle 15, the larger force from the steel plate is applied to the first 16 and the second 17 limiting plates, so that the baffle 15 is fixed at the current position and cannot deviate in position due to larger external force, after one end of the steel plate aligns one end of the baffle 15, the motor No. two 11 is made to rotate reversely, the output end of the motor No. two 11 drives the rotating rod 12 to rotate anticlockwise, the driving gears No. two 13 are driven to rotate anticlockwise, the racks No. two 14 move downwards, the baffle 15 is driven to move downwards, when the upper end of the baffle 15 is lower than the lower end of the steel plate, the motor No. two 11 is closed, plate rolling operation can be started, the distance between the limiting plate No. one 16 and the lower roller 10 is a fixed value, the distance between the steel plate and the lower roller 10 can be calculated easily, the rotating time of the motor No. one 7 is calculated conveniently when the motor No. one 7 is controlled to enable the steel plate to curl back and forth on the plate rolling machine, and the steel plate is not separated from the plate rolling machine due to the fact that one end of the steel plate moves between the two lower rollers 10, so that potential safety hazards are avoided.

The present utility model is not limited to the above-mentioned embodiments, and any equivalent embodiments which can be changed or modified by the technical content disclosed above can be applied to other fields, but any simple modification, equivalent changes and modification made to the above-mentioned embodiments according to the technical substance of the present utility model without departing from the technical content of the present utility model still belong to the protection scope of the technical solution of the present utility model.

Claims (6)

1. The three-roller plate bending machine comprises a bottom plate (1), and is characterized in that: the upper end welding of bottom plate (1) has two backup pads (2), square hole (3) have been seted up in one side of backup pad (2) run through, two be provided with between backup pad (2) upper roller (6), the below of upper roller (6) is provided with two lower rolls (10), the upper end fixed mounting of bottom plate (1) has No. two motors (11), the output fixed mounting of No. two motors (11) has dwang (12), the outside of dwang (12) just is located the equal fixed mounting in both ends position department and has driving gear two (13), the one end meshing of driving gear two (13) has rack (14), two be provided with baffle (15) between rack (14), the both ends of baffle (15) are fixed with the one end of two rack (14) respectively.

2. The three-roll bending machine of claim 1, wherein: the upper end welding of bottom plate (1) has limiting plate one (16), the upper end welding of bottom plate (1) has limiting plate two (17), one side of baffle (15) with one side sliding connection of limiting plate one (16), the opposite side of baffle (15) with one side sliding connection of limiting plate two (17).

3. The three-roll bending machine of claim 1, wherein: the inside welding of square hole (3) has pneumatic cylinder (4), the lower extreme of pneumatic cylinder (4) has bearing frame one (5), the both ends of upper roller (6) respectively with two the inside rotation connection of bearing frame one (5).

4. The three-roll bending machine of claim 1, wherein: two round holes are formed in one side of the supporting plate (2) in a penetrating mode, and two ends of the lower roller (10) are respectively connected with the inner portions of the four round holes in a rotating mode.

5. The three-roll bending machine of claim 1, wherein: the motor I (7) is fixedly arranged at the upper end of the bottom plate (1), the driving gear I (8) is fixedly arranged at the output end of the motor I (7), driven gears (9) are meshed at two ends of the driving gear I (8), and one ends of the two lower rollers (10) are respectively fixed with one ends of the two driven gears (9).

6. The three-roll bending machine of claim 2, wherein: the outer side of the rotating rod (12) is rotatably connected with two bearing seats II (18), and the lower ends of the two bearing seats II (18) are fixed with the upper end of the bottom plate (1).