Continuous conveying and bending device for copper pipes

Abstract

The utility model discloses a copper pipe continuous conveying and bending device which comprises a conveying roller set and a bending roller arranged on the outlet side of the conveying roller set. The conveying roller groups comprise an upper row and a lower row which are arranged in parallel; wherein at least one row of conveying rollers can move up and down so as to approach or leave the other row of conveying rollers; and the bending roller can move up and down. According to the copper pipe conveying and bending device with the mechanism, when a copper pipe arrives, the upper row of conveying rollers and the lower row of conveying rollers are relatively close to clamp the copper pipe, and meanwhile the conveying rollers start to rotate to be used for conveying the copper pipe. And after the end of the copper pipe runs to the bending roller, the bending roller ascends to bend the end of the copper pipe, and the subsequent copper pipe is bent according to the preset radian. Besides, it can be foreseen that the bending radian of the copper pipe can be controlled according to the lifting height of the bending roller, so that the equipment has higher adaptability, and bending and winding work of copper pipes of various models can be carried out.

Description

TECHNICAL FIELD

[0001] The utility model belongs to copper pipe manufacturing technical field especially relates to a copper pipe continuous conveying complete bending device. BACKGROUND

[0002] The precise copper pipe is often used in the refrigeration or heat supply pipeline, can be used in different environments, especially in the white household appliance field application is the most widely used, such as in the condenser of air conditioner, and it is one of the best connecting pipelines.

[0003] After the copper bar is rolled into pipe material, the copper pipe needs to be bent and then re-wound for transportation between processes.

[0004] The prior art Chinese patent application CN201210247971.7 discloses a discharging system of planetary pipe mill, which is used for winding copper pipe into shape, comprising output rollers, a bending conveying device, a turning roller and a winding roller arranged in sequence; wherein the output rollers are arranged in pairs above and below, and the copper pipe is clamped between the output rollers; the turning roller is specifically two and is arranged in staggered position; the winding roller is located below the bending conveying device.

[0005] In the above prior art, the position of the bending conveying device cannot be adjusted. That is, the bending angle is fixed, which makes the whole device less adaptable. In addition, since the bending conveying device cannot be adjusted, the copper pipe end needs to be pre-bent manually before entering the bending conveying device for subsequent bending of the copper pipe, which is relatively inconvenient to operate. UTILITY MODEL CONTENTS

[0006] Therefore, the utility model provides a copper pipe continuous conveying bending device, the bending roller position can be adjusted so that the copper pipe can be bent with various radian, and the copper pipe end does not need to be pre-bent.

[0007] To solve the above technical problems, the technical scheme of the utility model is as follows: a copper pipe continuous conveying bending device, comprising a conveying roller group and a bending roller arranged at the outlet side of the conveying roller group; the conveying roller group comprises two rows of upper and lower conveying rollers arranged in parallel; wherein at least one row of conveying rollers can move up and down to approach or move away from the other row of conveying rollers; the bending roller can move up and down.

[0008] As an improvement, the conveying roller group is driven to rotate by a driving mechanism; and the power transmission between the driving mechanism and the conveying roller can be switched on and off, so that the conveying roller can actively rotate for conveying the copper pipe, or passively rotate under the driving of the copper pipe to support the copper pipe.

[0009] As an improvement, the driving mechanism is a servo motor.

[0010] As a kind of preferred, the servo motor is provided with pneumatic clutch between conveying roller, so that the connection between servo motor and conveying roller can be on-off.

[0011] As an improvement, the upper conveying roller is arranged on the mounting plate, the mounting plate is provided with vertical column at end, vertical track is arranged on vertical column, the mounting plate can move up and down along track, and conveying roller lifting drive cylinder for driving mounting plate to move up and down is further included.

[0012] As a kind of preferred, the upper conveying roller is three, and the lower conveying roller is two.

[0013] As an improvement, the first two of the upper conveying roller correspond to the position of the lower conveying roller, and the interval of the first two of the upper conveying roller is greater than the interval of the second and third of the upper conveying roller, and the interval between the curved roller and the second lower conveying roller is less than the interval between the second and third upper conveying rollers.

[0014] As an improvement, the second and third upper conveying rollers are linked by chain, and the two lower conveying rollers are linked by chain.

[0015] As an improvement, the curved roller can slide up and down along the track vertically arranged on the bracket, and curved roller lifting drive cylinder for driving curved roller to slide up and down is further included.

[0016] As an improvement, photoelectric switch I for controlling the operation of conveying roller group is arranged in front of the conveying roller group, and photoelectric switch II for controlling the operation of curved roller is arranged between the conveying roller group and the curved roller.

[0017] The utility model has the advantages that:

[0018] The copper pipe conveying and bending device with the above mechanism can clamp the copper pipe by the relative approach of the upper and lower conveying rollers when the copper pipe arrives, and the conveying rollers start to rotate for conveying the copper pipe. When the end of the copper pipe reaches the curved roller, the curved roller rises to bend the end of the copper pipe, and the subsequent copper pipes are all bent according to the preset arc. In addition, it can be foreseen that the arc of the copper pipe bending can be controlled according to the lifting height of the curved roller, so that the equipment has stronger adaptability and can perform the bending and winding work of various types of copper pipes. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a three-dimensional structure schematic diagram of the utility model.

[0020] Figure 2 It is another three-dimensional structure schematic diagram of the utility model.

[0021] Marked in the figure: 1 conveying roller, 2 transmission roller, 3 stand, 4 track, 5 conveying roller lifting driving cylinder, 6 servo motor, 7 support, 8 bending roller lifting driving cylinder, 9 track, 10 mounting plate, 11 pneumatic clutch. DETAILED DESCRIPTION

[0022] In order for those skilled in the art to better understand the technical scheme of the utility model, the utility model will be further described in detail below in combination with specific embodiments.

[0023] As shown in Figure 1 , Figure 2 The utility model provides a copper pipe continuous conveying bending device, including conveying roller group and setting in conveying roller group export side's bending roller 2, conveying roller group includes parallelly arranged upper and lower two rows, wherein at least one row conveying roller 1 can move up and down to be close to or go to another row conveying roller 1, bending roller 2 can move up and down.

[0024] When there is copper pipe, the upper and lower two rows of conveying rollers are relatively close to clamp the copper pipe, and the conveying rollers start to rotate for conveying the copper pipe. When the end of the copper pipe runs to the bending roller, the bending roller 2 rises to bend the end of the copper pipe, and the subsequent copper pipes are all bent according to the preset radius. In addition, it can be foreseen that the radius of the copper pipe bending can be controlled according to the lifting height of the bending roller 2, so that the equipment has stronger adaptability and can perform bending and winding work on copper pipes of various models.

[0025] In this embodiment, the upper row of conveying rollers 1 is selected to be liftable. Specifically, the upper row of conveying rollers 1 is arranged on the mounting plate 10, the end of the mounting plate 10 is provided with a stand 3, the stand 3 is vertically provided with a track 4, the mounting plate 10 can move up and down along the track 4, and further comprising a conveying roller lifting driving cylinder 5 for driving the mounting plate 4 to move up and down.

[0026] Through the conveying roller lifting driving cylinder 5, all the upper row of conveying rollers 1 can be driven to descend to clamp and transport the copper pipe.

[0027] In this embodiment, the conveying roller 1 group is driven to rotate by a driving mechanism, and the power transmission between the driving mechanism and the conveying roller 1 can be switched on and off, so that the conveying roller 1 can be actively rotated for conveying the copper pipe, or can be passively rotated under the driving of the copper pipe to support the copper pipe. When the end of the copper pipe is not connected with the winding mechanism, the copper pipe needs the power provided by the conveying roller group to run. When the copper pipe is connected with the winding mechanism, the power of the winding mechanism can make the copper pipe continue to run, at this time, the conveying roller group does not need to convey the copper pipe any more, and at this time, the conveying roller group mainly plays a supporting role for the copper pipe. Therefore, the power between the conveying roller 1 and its driving mechanism in this embodiment can be switched on and off according to the requirement.

[0028] More specifically, in this embodiment, the driving mechanism is a servo motor 6, which can more precisely control the rotation of the conveying roller, thereby controlling the speed of the copper tube to match the output speed of the rolling mill. A pneumatic clutch 11 is provided between the servo motor 6 and the conveying roller 1, so that the connection between the servo motor 6 and the conveying roller 1 can be switched on and off.

[0029] The pneumatic clutch 11 is a device that uses compressed air as a power source to control the engagement and disengagement of the clutch. Its basic working principle is to control the engagement and disengagement of the clutch discs through the action of compressed air, thereby achieving the transmission or disconnection of power. The working process of the pneumatic clutch 11 includes:

[0030] Initial state: In the absence of compressed air supply, the clutch is disengaged. This means there is no power transmission between the drive shaft (usually the motor shaft) and the driven shaft.

[0031] Engagement process: When compressed air is introduced into the clutch through the air pipe, the air pressure acts on the piston or diaphragm, causing it to move. This movement compresses the clutch plates, thereby connecting the drive shaft and driven shaft, and realizing the transmission of power.

[0032] Separation process: When compressed air is released, the piston or diaphragm returns to its original position under the action of a spring or other reset mechanism, the clutch disc disengages, the connection between the drive shaft and the driven shaft is broken, and power transmission stops.

[0033] The purpose of setting a starting clutch 11 between the servo motor 6 and the conveyor roller 1 is to disconnect the hard connection between the servo motor 6 and the conveyor roller 1 when the conveyor roller 1 does not require power, so as to avoid the conveyor roller 1 driving the servo motor 6 to rotate passively, thereby causing wear on the servo motor 6.

[0034] In some embodiments, the upper conveyor roller 1 has three rollers, and the lower conveyor roller 1 has two rollers. The first two rollers of the upper conveyor roller 1 (from...) Figure 1 (Counting from right to left) Corresponding to position 1 of the lower row of conveyor rollers, the distance between the first two of the upper row of conveyor rollers 1 is greater than the distance between the second and third; the distance between the bending roller 2 and the second lower row of conveyor rollers 1 is less than the distance between the second and third upper row of conveyor rollers 1. The first two of the upper row of conveyor rollers 1 and the lower row of conveyor rollers 1 are mainly used for transporting copper tubes, while the third conveyor roller 1 in the upper row of conveyor rollers 1 also serves to assist in bending in conjunction with the bending roller 2. In addition, in order to reduce the power source, the second and third upper row of conveyor rollers 1 are linked by a chain; the two lower row of conveyor rollers 1 are linked by a chain.

[0035] In order to achieve the lifting and lowering of the bending roller 2, the bending roller 2 can slide up and down along the vertically arranged track 9 on the support 7; it also includes a bending roller lifting and lowering drive cylinder 8 for driving the bending roller 2 to slide up and down.

[0036] In order to realize automation, photoelectric switch I is arranged in front of the conveying roller group to control the operation of the conveying roller group; photoelectric switch II is arranged between the conveying roller group and the bending roller 2 to control the operation of the bending roller. When the photoelectric switch I is triggered, the upper conveying roller moves downward to clamp the copper pipe, and the conveying pipe starts to rotate to convey the copper pipe. When the photoelectric switch II is triggered, the bending roller rises to bend the copper pipe.

[0037] The working process of the utility model is as follows:

[0038] The conveying roller 1 starts to run, and the copper pipe enters the conveying roller group. The upper conveying roller 1 is driven by the conveying roller lifting drive cylinder 5 to press down to clamp and convey the copper pipe. When the copper pipe reaches the bending roller 2 (the initial height of the bending roller 2 is flush with the lower conveying roller 1), the bending roller 2 rises (the rising height is set in advance) to pre-bend the copper pipe. The bent copper pipe continues to climb into the vertical coiling drum slot to complete the early action of vertical coiling.

[0039] The above is only the preferred embodiment of the utility model, and it should be pointed out that the above preferred embodiment should not be regarded as the limitation of the utility model, and the protection scope of the utility model should be limited by the scope defined by the claims. For ordinary skilled persons in the technical field, several improvements and refinements can be made without departing from the spirit and scope of the utility model, and these improvements and refinements should also be regarded as the protection scope of the utility model.

Claims

1. A continuous feed bending apparatus for copper tube, characterized by: The conveying roller group comprises two rows of upper and lower conveying rollers arranged in parallel, at least one row of the conveying rollers can move up and down to approach or move away from the other row of the conveying rollers, and the bending roller can move up and down.

2. A continuous conveying and bending device for copper tubes according to claim 1, characterized in that: The conveying roller group is driven to rotate by a driving mechanism, and power transmission between the driving mechanism and the conveying rollers can be switched, so that the conveying rollers can be actively rotated for conveying the copper pipe or passively rotated to support the copper pipe under the driving of the copper pipe.

3. A continuous conveying and bending device for copper tubes according to claim 2, characterized in that: The driving mechanism is a servo motor.

4. A continuous conveying and bending device for copper tubes according to claim 3, characterized in that: A pneumatic clutch is arranged between the servo motor and the conveying rollers, so that the connection between the servo motor and the conveying rollers can be switched.

5. A continuous conveying and bending device for copper tubes according to claim 1, characterized in that: The upper row of conveying rollers is arranged on a mounting plate, an end of the mounting plate is provided with a vertical column, a track is vertically arranged on the vertical column, the mounting plate can move up and down along the track, and a conveying roller lifting driving air cylinder for driving the mounting plate to move up and down is further arranged.

6. A continuous conveying and bending device for copper tubes according to claim 1, characterized in that: The upper row of conveying rollers comprises three conveying rollers, and the lower row of conveying rollers comprises two conveying rollers.

7. A continuous conveying and bending device for copper tubes according to claim 1, characterized in that: The first two conveying rollers in the upper row correspond to the positions of the lower row of conveying rollers, the distance between the first two conveying rollers in the upper row is greater than the distance between the second and third conveying rollers in the upper row, and the distance between the bending roller and the second conveying roller in the lower row is less than the distance between the second and third conveying rollers in the upper row.

8. A continuous conveying and bending device for copper tubes according to claim 6, characterized in that: The second and third conveying rollers in the upper row are connected by a chain, and the two conveying rollers in the lower row are connected by a chain.

9. A continuous conveying and bending device for copper tubes according to claim 1, characterized in that: The bending roller can slide up and down along a track vertically arranged on a support, and a bending roller lifting driving air cylinder for driving the bending roller to slide up and down is further arranged.

10. A continuous conveying and bending device for copper tubes according to claim 9, characterized in that: An optical switch I for controlling the operation of the conveying roller group is arranged in front of the conveying roller group, and an optical switch II for controlling the operation of the bending roller is arranged between the conveying roller group and the bending roller.

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