CN113547005A - Positive and negative bending equipment of section bar of variable camber - Google Patents
Positive and negative bending equipment of section bar of variable camber Download PDFInfo
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- CN113547005A CN113547005A CN202110841781.7A CN202110841781A CN113547005A CN 113547005 A CN113547005 A CN 113547005A CN 202110841781 A CN202110841781 A CN 202110841781A CN 113547005 A CN113547005 A CN 113547005A
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- 238000005452 bending Methods 0.000 title claims abstract description 141
- 230000007246 mechanism Effects 0.000 claims abstract description 56
- 238000003825 pressing Methods 0.000 claims description 99
- 230000005540 biological transmission Effects 0.000 claims description 36
- 238000013519 translation Methods 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 14
- 238000009434 installation Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 7
- 230000000712 assembly Effects 0.000 claims description 2
- 238000000429 assembly Methods 0.000 claims description 2
- 238000012545 processing Methods 0.000 abstract description 23
- 230000001360 synchronised effect Effects 0.000 description 11
- 238000012546 transfer Methods 0.000 description 8
- 239000010720 hydraulic oil Substances 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 230000000149 penetrating effect Effects 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000007723 transport mechanism Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D7/00—Bending rods, profiles, or tubes
- B21D7/16—Auxiliary equipment, e.g. for heating or cooling of bends
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/02—Advancing work in relation to the stroke of the die or tool
- B21D43/04—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
- B21D43/08—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by rollers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D7/00—Bending rods, profiles, or tubes
- B21D7/08—Bending rods, profiles, or tubes by passing between rollers or through a curved die
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D7/00—Bending rods, profiles, or tubes
- B21D7/14—Bending rods, profiles, or tubes combined with measuring of bends or lengths
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- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The invention provides a positive and negative bending device of a variable-curvature section, which comprises: the conveying mechanism and the profile positive and negative bending mechanism; the conveying mechanism conveys the section in a pressure conveying mode; the profile positive and negative bending mechanism comprises a first forming wheel assembly, a second forming wheel assembly and a forming wheel distance driving assembly; the first forming wheel assembly is provided with a first forming wheel, and the second forming wheel assembly is provided with a second forming wheel; the first forming wheel can make circular motion by taking the center of the second forming wheel as a circle center, and the second forming wheel can make circular motion by taking the center of the first forming wheel as a circle center; the first forming wheel assembly and the second forming wheel assembly adjust the distance between the first forming wheel assembly and the second forming wheel assembly through the forming wheel distance driving assembly; the position between the first forming wheel and the second forming wheel is used as a section bending station which is arranged opposite to the conveying mechanism. The automatic bending machine realizes automatic conveying of the section bar and automatic forward bending and/or reverse bending of the section bar, thereby realizing automatic bending processing of the section bar.
Description
Technical Field
The invention relates to the technical field of profile processing, in particular to profile positive and negative bending equipment with variable curvature.
Background
In the traditional section bending process, the bending forming of the section cannot realize the forming of any bending angle, the secondary forming is mainly assisted by manpower, the labor capacity of workers is large, and the production rate is low. Especially for profiles with larger or thicker diameters, the labor intensity of the workers is very high and often the desired curved shape cannot be achieved.
In order to meet the profile bending process, profile bending devices with variable curvature are available on the market, and most of the profile bending devices utilize the relative position change and the rotary motion of working rolls to enable the profile to generate continuous plastic deformation according to the principle of three-point rounding so as to obtain profile workpieces with preset shapes. However, the section bending equipment on the market can only carry out the same-direction variable-curvature bending on the section, and if the section needs to be processed in two directions, two feeding processes are required: firstly, pressing a forward arc on a profile workpiece, and then taking out the profile workpiece to change the direction and position to press a reverse arc. The processing mode is troublesome, time-consuming and labor-consuming, and the bent section bar can meet the design requirement only by repeatedly adjusting the placing angle of the section bar for many times, and the precision of the transition position of the positive arc and the negative arc cannot be ensured, so that the processing quality and the precision of the section bar are influenced.
In addition, the conveying mechanism of the existing section bending equipment can only realize the function of conveying the section, and the conveying mechanism has single function and low practicability, so that the requirement of bending the existing section cannot be met.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide the profile positive and negative bending equipment with variable curvature; the equipment for positively and negatively bending the section can realize automatic transmission of the section and automatic positive bending and/or reverse bending of the section, thereby realizing automatic bending processing of the section; meanwhile, the profile positive and negative bending equipment can realize the positive bending and/or the reverse bending of the profile with variable curvature, thereby improving the profile bending efficiency and the quality of the profile bending processing.
In order to achieve the purpose, the invention is realized by the following technical scheme: a variable-curvature profile positive and negative bending device is characterized in that: the method comprises the following steps: the profile forward and backward bending mechanism is used for bending the profile;
the conveying mechanism conveys the section bar in a pressure conveying mode;
the profile positive and negative bending mechanism comprises a first forming wheel assembly, a second forming wheel assembly and a forming wheel distance driving assembly; the first forming wheel assembly is provided with a first forming wheel, and the second forming wheel assembly is provided with a second forming wheel; the first forming wheel can make circular motion by taking the center of the second forming wheel as a circle center, and the second forming wheel can make circular motion by taking the center of the first forming wheel as a circle center; the first forming wheel assembly and the second forming wheel assembly adjust the distance between the first forming wheel assembly and the second forming wheel assembly through a forming wheel distance driving assembly; the position between the first forming wheel and the second forming wheel is used as a section bending station, and the section bending station is arranged opposite to the conveying mechanism; when the bending machine works, the relative positions of the first forming wheel assembly and the second forming wheel assembly are controlled and adjusted, so that the variable-curvature positive and negative bending of the section is realized.
In the scheme, the conveying mechanism conveys the section in a pressure conveying mode, so that the section can be effectively and quickly conveyed. In addition, the first forming wheel and the second forming wheel can perform circular motion around each other and adjust the distance between the first forming wheel and the second forming wheel, so that the profile at the profile bending station can be bent in the forward direction and the reverse direction, the curvature of the forward and reverse bending of the profile can be adjusted according to the processing requirement, the variable-curvature forward and reverse bending processing of the profile can be realized on the same platform equipment, the bending processing efficiency is improved, the smooth transition of forward and reverse arcs is ensured, and the quality of the bending processing of the profile is improved.
The conveying mechanism conveys the section bar in a pressure conveying mode, and the pressure conveying mode comprises the following steps: the conveying mechanism comprises a first pressing wheel assembly with a plurality of first pressing wheels and a second pressing wheel assembly with a plurality of second pressing wheels, and the first pressing wheels of the first pressing wheel assembly and the second pressing wheels of the second pressing wheel assembly are arranged in a staggered mode; the position between the first pressing wheel assembly and the second pressing wheel assembly is used as a conveying station of the section; the first pressing wheel of the first pressing wheel assembly is a power wheel, and the second pressing wheel of the second pressing wheel assembly can horizontally move along the vertical direction of the conveying direction of the section; during operation, the distance between the second pressing wheel and the first pressing wheel is adjusted, the first pressing wheel is controlled to rotate, and the sectional material is conveyed and subjected to stress removal pretreatment.
The conveying mechanism can adjust the distance between the second pressing wheel and the first pressing wheel along the vertical direction of the conveying direction of the section according to the bending parameters (the bending parameters comprise the bending direction, the bending curvature and the like) of the subsequent bending forming of the section, and can convey and bend the section in the rotating process of the second pressing wheel, so that the section conveyed at the conveying station is deformed and then straightened, and the stress-removing pretreatment of the section is realized. The section bar conveyed by the conveying mechanism can be bent and formed at one time in the subsequent bending processing, so that the bending efficiency and the bending quality of the section bar are improved.
The first pinch roller assembly further comprises a first pinch roller driving device and a pinch roller transmission device; the first pinch roller driving device is connected with the first pinch roller through a first pinch roller transmission device, so that the pinch rollers are driven to rotate synchronously;
the first pinch roller transmission device comprises an input gear, a driving gear and a transmission gear set; the driving gears are equal in number to the first pressing wheels and are connected with a same shaft of the pressing wheels, and the driving gears are meshed with the transmission gear set; the input gear is connected with an output shaft of the driving device of the pinch roller and is meshed with the driving gear, so that the pinch roller is driven to rotate synchronously.
The invention also comprises a combined pressing wheel component and an auxiliary pressing wheel component; the auxiliary pinch roller assembly and the pinch roller assembly are arranged at the same side and in parallel and are provided with auxiliary pinch rollers, and the auxiliary pinch rollers are power wheels rotating synchronously with the pinch rollers; and the combined pinch roller assembly is arranged on the same side as the pinch roller assembly II and is provided with a combined pinch roller, and the combined pinch roller can horizontally move along the vertical direction of the conveying direction of the section bar. The conveying mechanism can perform compensation correction and/or clamping conveying on the section bar again through the combined pressing wheel assembly and the auxiliary pressing wheel assembly.
The combined pinch roller component also comprises a combined pinch roller driving device, a combined pinch roller sliding seat, a combined pinch roller bottom plate and a combined pinch roller transmission device; the combined pinch roller bottom plate is arranged on the combined pinch roller sliding seat, and the combined pinch roller is connected with the combined pinch roller bottom plate; the combined pinch roller driving device is connected with the combined pinch roller sliding seat through the combined pinch roller transmission device, so that the combined pinch roller on the combined pinch roller sliding seat is driven to horizontally move along the vertical direction of the profile conveying direction;
the combined pinch roller assembly further comprises a combined pinch roller shaft and a bearing; the combined pressing wheel base plate is provided with a mounting hole, the combined pressing wheel penetrates through the combined pressing wheel shaft, and the combined pressing wheel shaft is connected with the mounting hole through a bearing;
the installation hole is formed in the center line of the combined pinch roller base plate, and the combined pinch roller and the auxiliary pinch roller which are installed on the installation hole are arranged oppositely; when the device works, the auxiliary pinch roller and the pinch roller are controlled to rotate synchronously, so that the section bar is clamped and conveyed;
or the mounting hole is arranged on the central line of the combined pinch roller base plate in a deviation manner, and the combined pinch roller and the auxiliary pinch roller which are arranged on the mounting hole are arranged in a staggered manner; during operation, the distance between the combined pressing wheel and the auxiliary pressing wheel is adjusted, and the auxiliary pressing wheel and the pressing wheel are controlled to rotate synchronously, so that auxiliary pretreatment on the section is realized.
The profile positive and negative bending mechanism further comprises a rotating assembly for driving the first forming wheel assembly and the second forming wheel assembly to rotate, and the rotating assembly is provided with a rotating base; the first forming wheel assembly and the second forming wheel assembly are arranged on the rotating base through forming wheel distance driving assemblies respectively.
The relative position of the first forming wheel assembly and the second forming wheel assembly is adjusted through control, and the relative position refers to that: the forming wheel distance driving assembly is controlled to drive the second forming wheel assembly to the center of the rotating base, and the rotating assembly is controlled to drive the first forming wheel to rotate around the second forming wheel; and/or controlling the forming wheel distance driving assembly to adjust the distance from the first forming wheel assembly to the second forming wheel assembly, so as to adjust the relative positions of the first forming wheel assembly and the second forming wheel assembly;
or, the relative position of the first forming wheel assembly and the second forming wheel assembly is adjusted by controlling: the forming wheel distance driving assembly is controlled to drive the first forming wheel assembly to the center of the rotating base, and the rotating assembly is controlled to drive the second forming wheel to rotate around the first forming wheel; and/or controlling the forming wheel distance driving assembly to adjust the distance from the second forming wheel assembly to the first forming wheel assembly, so as to adjust the relative positions of the first forming wheel assembly and the second forming wheel assembly.
The principle of driving the first forming wheel assembly and the second forming wheel assembly to rotate is as follows: the first forming wheel/the second forming wheel is arranged at the center of the rotating base by adopting the principle that the central angular speed is not changed, the second forming wheel/the first forming wheel positioned on the rotating base is driven to rotate around the first forming wheel/the second forming wheel through the rotating base, and the distance between the first forming wheel assembly and the second forming wheel assembly can be adjusted according to the processing requirement during processing. The invention adopts a simple mechanical structure to realize the positive and negative bending of the section with variable curvature.
The forming wheel distance driving assembly comprises a first forming wheel distance driving device and a second forming wheel distance driving device which are identical in structure; the first forming wheel distance driving device and the second forming wheel distance driving device respectively comprise a forming wheel distance adjusting driving piece, a gear transmission piece and a lead screw transmission piece; the forming wheel distance adjusting driving piece is connected with the screw rod driving piece through a gear driving piece, the screw rod driving piece of the first forming wheel distance driving device is connected with the first forming wheel assembly, the screw rod driving piece of the second forming wheel distance driving device is connected with the second forming wheel assembly, the first forming wheel assembly is driven to move by the first forming wheel distance driving device, and the second forming wheel assembly is driven to move by the second forming wheel distance driving device.
The profile positive and negative bending mechanism further comprises a translation assembly for driving the first forming wheel assembly and the second forming wheel assembly to translate; the rotating base is arranged on the translation assembly. The first forming wheel assembly and the second forming wheel assembly can be translated through the translation assembly, so that the position of a section bending station is adjusted, and the section bending station can be correspondingly matched with a front section feeding mechanism.
The profile positive and negative bending mechanism further comprises an upward bending assembly for pushing the profile to bend upwards; the upward bending assembly is arranged at the rear end of the section bending station along the section conveying direction. The upward bending assembly can bend the section subjected to forward and reverse bending processing upwards, so that the forward and reverse bending mechanism of the section has the characteristic of three-dimensional processing, and the three-dimensional processing can be realized on the same operation platform, thereby improving the practicability of the section bending processing.
The principle of the conveying mechanism for preprocessing the section bar is as follows: the invention adopts the bending parameters after the section bar is formed to adjust the distance between the second pressing wheel and the first pressing wheel, namely, the track route of the subsequent forming is set to adjust and set the position of the second pressing wheel. Therefore, the transmitted section bar can be bent to deform the section bar, and the section bar is transmitted according to the track route to realize the stress-relief pretreatment. In the pretreatment process, each pressing wheel I and each pressing wheel II enable the profile to be bent and deformed, and the profile is repeatedly bent for multiple times to eliminate the unevenness of curvature, so that the bending curvature gradually decreases from large to small, and the profile raw material is straightened.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. the variable-curvature section bar forward and backward bending equipment can realize automatic conveying of the section bars and automatic forward bending and/or backward bending of the section bars, so that automatic bending processing of the section bars is realized; meanwhile, the profile positive and negative bending equipment can realize the positive bending and/or the reverse bending of the profile with variable curvature, thereby improving the profile bending efficiency and the quality of the profile bending processing.
2. The conveying mechanism can convey the section and can carry out stress-relief pretreatment on the section to be bent, so that the subsequent section can be bent and formed at one time, and the bending efficiency and the bending quality of the section are improved.
Drawings
FIG. 1 is a schematic view of a profile positive and negative bending apparatus according to the present invention;
FIG. 2 is a first schematic diagram of a forward and backward bending mechanism of a profile in the forward and backward bending apparatus according to the present invention (wherein, the arrow indicates the direction of profile transport);
FIG. 3 is a second schematic view of a forward and backward bending mechanism of the sectional material in the forward and backward bending apparatus of the sectional material of the present invention;
FIG. 4 is an internal schematic view of a forward and backward bending mechanism of the sectional material in the forward and backward bending device of the sectional material of the present invention;
FIG. 5 is a schematic view of a transfer mechanism in the forward and backward bending apparatus for a profile according to the present invention;
FIG. 6 is an internal schematic view of a transfer mechanism in the forward and backward bending apparatus for profiles according to the present invention;
FIG. 7 is a schematic top view of a transfer mechanism in the apparatus for positive and negative bending of a profile according to the present invention;
FIG. 8 is a schematic side view of the transfer mechanism of the apparatus for positive and negative bending of a profile according to the present invention;
FIG. 9 is a schematic view of the inside of a second pinch roller assembly of the transfer mechanism in the forward and backward bending apparatus for profiles according to the present invention;
FIG. 10 is an internal schematic view of a combination hold-down wheel assembly of an embodiment of a transport mechanism;
FIG. 11 is a schematic view of a combined pinch roller base plate of an embodiment;
FIG. 12 is a schematic view of a base plate of a combined pinch roller of an embodiment;
FIG. 13 is a schematic top view of a transfer mechanism according to a second embodiment;
FIG. 14 is a schematic top view of a third transport mechanism according to an embodiment;
wherein, 1 is a machine base, 2 is a profile positive and negative bending mechanism, 2.1 is a first forming wheel component, 2.1.1 is a first forming wheel, 2.1.2 is a first forming wheel shaft, 2.1.3 is a first forming wheel seat, 2.2 is a second forming wheel component, 2.2.1 is a second forming wheel, 2.2.2 is a second forming wheel shaft, 2.2.3 is a second forming wheel seat, 2.3 is a rotary base, 2.4 is a hydraulic motor I, 2.5 is a gear pair, 2.6 is a rotary connecting seat, 2.7 is a hydraulic motor II, 2.8 is a gear transmission piece, 2.9 is a lead screw transmission piece, 2.10 is a linear guide rail I, 2.11 is a linear guide rail III, 2.12 is a translational seat, 2.13 is a translational flange, 2.15 is a translational hydraulic oil cylinder, 2.16 is a hydraulic oil cylinder, 2.17 is a connecting seat, 2.18 is a linear guide rail II, 2.11 is a linear guide rail rotating seat, 2.19 is a speed measuring gear rotating seat, 2.22.26 is a speed measuring gear rotating seat, 2.23.26 is a synchronous belt wheel shaft sleeve, 2.26 is a belt wheel is a synchronous encoder, 2.2.2.2.2.2.2.2.2.2.2.2.2.2.2.2.2.2.2.2.2.2.2.2.2.15 is a synchronous belt wheel sleeve, 2.27 is a synchronous belt, 3 is a transmission mechanism, 3.1 is a first pinch roller, 3.2 is a second pinch roller, 3.3 is a workbench, 3.4 is a first pinch roller hydraulic motor, 3.5 is an input gear, 3.6 is a drive gear, 3.7 is a drive gear set, 3.8 is a pinch roller two-step motor, 3.9 is a second pinch roller sliding seat, 3.10 is a second pinch roller mounting shaft, 3.11 is a first screw rod, 3.12 is an auxiliary pinch roller, 3.13 is a combined pinch roller, 3.14 is a combined pinch roller stepping motor, 3.15 is a combined pinch roller sliding seat, 3.16 is a combined pinch roller bottom plate, 3.17 is a combined pinch roller shaft, 3.18 is a second screw rod, 3.19 is a bearing, 3.20 is a mounting hole, 3.21 is an auxiliary drive gear, 3.22 is an auxiliary drive gear set, 4 is a material supporting component, 4.1 is a material supporting wheel, 4.2 is a support, 4.3 is an adjustable speed measuring component, 5.6 speed measuring wheel component, 1.6 is a pinch roller shaft, and a speed measuring wheel is an encoder, 6.4 is a spring, 6.5 is a speed measuring mounting seat, and 6.6 is a supporting plate.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Example one
As shown in fig. 1 to 11, the apparatus for forward and backward bending of a variable curvature profile of the present invention comprises: the bending machine comprises a machine base 1, a conveying mechanism 3 for conveying the section bar and a section bar positive and negative bending mechanism 2 for bending the section bar, wherein the conveying mechanism 3 conveys the section bar in a pressure conveying mode and is arranged on the machine base 1; the profile positive and negative bending mechanism 2 comprises a first forming wheel assembly 2.1, a second forming wheel assembly 2.2 and a forming wheel distance driving assembly. The first forming wheel assembly 2.1 is provided with a first forming wheel 2.1.1, the second forming wheel assembly 2.2 is provided with a second forming wheel 2.2.1, wherein the first forming wheel 2.1.1 can make circular motion by taking the center of the second forming wheel 2.2.1 as the circle center, the second forming wheel 2.2.1 can make circular motion by taking the center of the first forming wheel 2.1.1 as the circle center, the first forming wheel assembly 2.1 and the second forming wheel assembly 2.2 adjust the distance between the first forming wheel assembly 2.1 and the second forming wheel assembly 2.2 through a forming wheel distance driving assembly, the position between the first forming wheel assembly 2.1.1 and the second forming wheel assembly 2.2.1 is used as a section bending station, and the section bending station is arranged opposite to the conveying mechanism 3; when the bending machine works, the relative positions of the first forming wheel assembly 2.1 and the second forming wheel assembly 2.2 are controlled and adjusted, so that the variable-curvature positive and negative bending of the section is realized.
The invention also comprises a rotating assembly for driving the first forming wheel assembly 2.1 and the second forming wheel assembly 2.2 to rotate, wherein the rotating assembly comprises a rotating base 2.3, a first hydraulic motor 2.4, a gear pair 2.5 and a rotating connecting seat 2.6, the first hydraulic motor 2.4 is connected with the gear pair 2.5, the rotating base 2.3 is coaxially connected with the rotating connecting seat 2.6, and the first hydraulic motor 2.4 drives the rotating connecting seat 2.6 to rotate through the gear pair 2.5 so as to drive the rotating base 2.3 to rotate. And the first forming wheel assembly 2.1 and the second forming wheel assembly 2.2 are respectively arranged on the rotating base 2.3 through a forming wheel distance driving assembly.
The relative positions of the first forming wheel assembly 2.1 and the second forming wheel assembly 2.2 are adjusted through control, namely: the forming wheel distance driving assembly is controlled to drive the second forming wheel assembly 2.2 to the center of the rotating base 2.3, and the rotating assembly is controlled to drive the first forming wheel 2.1.1 to rotate around the second forming wheel 2.2.1; and/or controlling the forming wheel distance driving assembly to adjust the distance from the first forming wheel assembly 2.1 to the second forming wheel assembly 2.2, so as to adjust the relative positions of the first forming wheel assembly 2.1 and the second forming wheel assembly 2.2. Alternatively, the above-mentioned adjusting the relative positions of the first forming wheel assembly 2.1 and the second forming wheel assembly 2.2 by controlling means: the forming wheel distance driving assembly is controlled to drive the first forming wheel assembly 2.1 to the center of the rotating base 2.3, and the rotating assembly is controlled to drive the second forming wheel 2.2.1 to rotate around the first forming wheel 2.1.1; and/or controlling the forming wheel distance driving assembly to adjust the distance from the second forming wheel assembly 2.2 to the first forming wheel assembly 2.1, so as to adjust the relative positions of the first forming wheel assembly 2.1 and the second forming wheel assembly 2.2.
The first forming wheel assembly 2.1 of the invention further comprises a first forming wheel axle 2.1.2 and a first forming wheel seat 2.1.3, wherein the first forming wheel axle 2.1.2 is connected with the first forming wheel seat 2.1.3 through a bearing, and the first forming wheel 2.1.1 is mounted on the first forming wheel axle 2.1.2. The second formed wheel assembly 2.2 further comprises a second formed wheel axle 2.2.2 and a second formed wheel seat 2.2.3, wherein the second formed wheel axle 2.2.2 is connected to the second formed wheel seat 2.2.3 by a bearing and the second formed wheel 2.2.1 is mounted on the second formed wheel axle 2.2.2.
The forming wheel distance driving assembly comprises a first forming wheel distance driving device and a second forming wheel distance driving device which are identical in structure, wherein each of the first forming wheel distance driving device and the second forming wheel distance driving device comprises a hydraulic motor II 2.7, a gear transmission piece 2.8, a lead screw transmission piece 2.9, a linear guide rail I2.10 and a sliding block, the press motor II 2.7 is connected with the lead screw transmission piece 2.9 through the gear transmission piece 2.8, the lead screw transmission piece 2.9 of the first forming wheel distance driving device is connected with the first forming wheel assembly 2.1, the lead screw transmission piece 2.9 of the second forming wheel distance driving device is connected with the second forming wheel assembly 2.2, and therefore the first forming wheel assembly 2.1 is driven to move by the press motor II 2.7 of the first forming wheel distance driving device, and the second forming wheel assembly 2.2 is driven to move by the press motor II 2.7 of the second forming wheel distance driving device. The first linear guide rails 2.10 are arranged on two sides of the screw rod transmission piece 2.9, and the first forming wheel assembly 1 is in sliding connection with the first linear guide rails 2.10 of the first forming wheel distance driving device through sliding blocks; the second forming wheel assembly 2.2 is connected with the linear guide rail one 2.10 of the second forming wheel distance driving device in a sliding mode through a sliding block.
The positive and negative bending mechanism 2 for the section bar further comprises a translation assembly for driving the first forming wheel assembly 2.1 and the second forming wheel assembly 2.2 to translate, wherein the translation assembly comprises a linear guide rail III 2.11, a translation seat 2.12, a translation flange 2.13 and a translation hydraulic oil cylinder 2.15, the translation seat 2.12 is in sliding connection with the linear guide rail III 2.11 through a sliding block, and the translation hydraulic oil cylinder 2.15 is connected with the translation seat 2.12 through the translation flange 2.13, so that the translation seat 2.12 is driven to translate on the linear guide rail III 2.11. And the rotating base 2.3 is arranged on the translation seat 2.12, the invention can realize the translation of the first forming wheel component 2.1 and the second forming wheel component 2.2 through the translation component, thereby adjusting the position of the section bending station and being correspondingly matched with a front section feeding mechanism.
The profile positive and negative bending mechanism 2 of the invention further comprises an upward bending component for pushing the profile to bend upwards, and the upward bending component is arranged at the rear end of the profile bending station along the profile conveying direction (an arrow in figure 2). The upward bending assembly can bend the section subjected to forward and reverse bending processing upwards, so that the forward and reverse bending mechanism of the section has the characteristic of three-dimensional processing, and the three-dimensional processing can be realized on the same operation platform, thereby improving the practicability of the section bending processing. Specifically, the upward bending assembly comprises a hydraulic oil cylinder 2.16, a connecting seat 2.17, a linear guide rail two 2.18, a rotating base 2.19, a rotating seat 2.20, a rotating shaft sleeve 2.21 and a wheel shaft 2.22 for supporting the profile, wherein the rotating seat 2.20 is connected with the rotating base 2.19 through the rotating shaft sleeve 2.21, and the wheel shaft 2.22 is arranged on the rotating seat 2.20, so that the wheel shaft 2.22 can rotate according to the shape of the profile to fit the profile. The rotating base 2.19 is connected with the linear guide rail 2.18 in a sliding mode through a sliding block, so that the horizontal position of the wheel shaft 2.22 can be automatically adjusted according to the position of the section bar. The second linear guide rail 2.18 is arranged on the connecting seat 2.17, and the hydraulic oil cylinder 2.16 is connected with the connecting seat 2.17 to drive the connecting seat 2.17 to ascend, so that the wheel shaft 2.22 is attached to the section bar and bends the section bar upwards. In order to improve the lifting stability of the connecting seat 2.17, a guide rod 2.23 penetrating through the connecting seat 2.17 is further arranged.
The positive and negative bending mechanism 2 of the section bar of the invention further comprises a detection component and a controller for detecting the rotating speed of the first forming wheel component 2.1 or the second forming wheel component 2.2, wherein the detection component comprises an encoder 2.24 connected with the controller, two synchronous belt wheels 2.26, a synchronous belt 2.27 and a speed measuring gear 2.25 in transmission connection with the rotary connecting seat 2.6, one synchronous belt wheel 2.26 is coaxially connected with the speed measuring gear 2.25, the other synchronous belt wheel 2.26 is coaxially connected with the encoder 2.24, the two synchronous belt wheels 2.26 are connected through the synchronous belt 2.27, the detection of the rotating angle of the first forming wheel component 2.1 or the second forming wheel component 2.2 on the rotary component through the encoder 2.24 is realized, and an operator can obtain rotating parameters through the controller.
The conveying mechanism comprises a workbench 3.3, a first pinch roller assembly with four pinch rollers I3.1 and a second pinch roller assembly with four pinch rollers II 3.2, wherein the first pinch roller assembly and the second pinch roller assembly are arranged on the workbench 3.3, and the first pinch roller 3.1 of the first pinch roller assembly and the second pinch roller 3.2 of the second pinch roller assembly are arranged in a staggered manner; and the position between the first pressing wheel assembly and the second pressing wheel assembly is used as a conveying station of the section. A first pinch roller 3.1 of a first pinch roller assembly is a power wheel, and a second pinch roller 3.2 of a second pinch roller assembly can horizontally move along the vertical direction of the conveying direction of the section; during operation, the distance between the second pressing wheel 3.2 and the first pressing wheel 3.1 is adjusted, and the first pressing wheel 3.1 is controlled to rotate, so that the sectional material is conveyed and subjected to stress removal pretreatment.
Specifically, the first pinch roller assembly further comprises a first pinch roller hydraulic motor 3.4, an input gear 3.5, a driving gear 3.6 and a transmission gear set 3.7, wherein the driving gear 3.6 and the first pinch roller 3.1 are equal in number and are coaxially connected with the first pinch roller 3.1, the first pinch roller 3.1 penetrates through a mounting shaft, the mounting shaft is connected with the workbench 3.3 through a bearing, the driving gear 3.6 is in meshing connection with the transmission gear set 3.7, the input gear 3.5 is connected with an output shaft of the first pinch roller hydraulic motor 3.4 and is in meshing connection with two of the driving gears 3.6, and synchronous rotation of the first pinch roller 3.1 is driven.
The second pinch roller assembly further comprises a second pinch roller stepping motor 3.8, a second pinch roller sliding seat 3.9, a second pinch roller mounting shaft 3.10, a first lead screw 3.11 and a first nut, wherein the second pinch roller 3.2 is arranged on the second pinch roller mounting shaft 3.10 in a penetrating mode, the second pinch roller mounting shaft 3.10 is arranged on the second pinch roller sliding seat 3.9 through a bearing, the first nut is arranged on the first lead screw 3.11 in a penetrating mode and connected with the second pinch roller sliding seat 3.9, the second pinch roller stepping motor 3.8 is connected with the first lead screw 3.11, and the first lead screw 3.11 is driven to rotate to drive the second pinch roller 3.2 on the second pinch roller sliding seat 3.9 to horizontally move along the vertical direction of the profile conveying direction.
The combined pressing wheel assembly and the pressing wheel assembly are arranged on the same side, are parallel to each other and are provided with two auxiliary pressing wheels 3.12, the auxiliary pressing wheels 3.12 are power wheels which rotate synchronously with the first pressing wheels 3.1, the combined pressing wheel assembly and the pressing wheel assembly are arranged on the same side and are provided with two combined pressing wheels 3.13, and the combined pressing wheels 3.13 can horizontally move along the vertical direction of the profile conveying direction. The conveying mechanism of the embodiment can clamp and convey the profile through the combined pressing wheel assembly and the auxiliary pressing wheel assembly.
The combined pinch roller assembly further comprises a combined pinch roller stepping motor 3.14, a combined pinch roller sliding seat 3.15, a combined pinch roller base plate 3.16, a combined pinch roller shaft 3.17, a screw rod II 3.18, a bearing 3.19 and a nut II, wherein the combined pinch roller base plate 3.16 is arranged on the combined pinch roller sliding seat 3.15, the combined pinch roller base plate 3.16 is provided with a mounting hole 3.20, the combined pinch roller 3.13 penetrates through the combined pinch roller shaft 3.17, and the combined pinch roller shaft 3.17 is connected with the mounting hole 3.20 through the bearing 3.19. The second nut penetrates through the second screw rod 3.18 and is connected with the second combined pressing wheel sliding seat 3.15, and the second combined pressing wheel stepping motor 3.14 is connected with the second screw rod 3.18, so that the second screw rod 3.18 is driven to rotate to drive the second combined pressing wheel 3.13 on the second combined pressing wheel sliding seat 3.15 to horizontally move along the vertical direction of the profile conveying direction.
The auxiliary pinch roller assembly further comprises an auxiliary driving gear 3.21 and an auxiliary transmission gear set 3.22, the auxiliary driving gear 3.21 and the auxiliary pinch rollers 3.12 are equal in number and are coaxially connected with the auxiliary pinch rollers 3.12, the auxiliary pinch rollers 3.12 penetrate through a mounting shaft, the mounting shaft is connected with the workbench 3 through a bearing, the auxiliary driving gear 3.21 is respectively meshed and connected with the auxiliary transmission gear set 3.22 and the transmission gear set 3.7, and when the first pinch roller 3.1 rotates, the auxiliary driving gear 3.21 can be driven to synchronously rotate.
In the embodiment, the mounting holes 3.20 of the two combined pinch roller base plates 3.16 are both arranged on the central line of the combined pinch roller base plate 3.16, and the two combined pinch rollers 3.13 respectively arranged on the mounting holes 3.20 are arranged opposite to the auxiliary pinch rollers 3.12; during operation, the two auxiliary pinch rollers 3.13 and the pinch roller I3.1 are controlled to synchronously rotate, so that the section bar is clamped and conveyed. The position of the combined pinch roller 3.13 can be adjusted according to the width of the profile.
The invention also comprises a material supporting component 4 for supporting the section bar, wherein the material supporting component 4 is arranged at the inlet end of the conveying station and comprises a material supporting wheel 4.1, a support 4.2 and an adjustable support frame 4.3, the support 4.2 is connected with the workbench 3.3, the material supporting wheel 4.1 is arranged on the adjustable support frame 4.3 through a wheel shaft, and the adjustable support frame 4.3 is in adjustable connection with the support 4.2, so that the position of the material supporting wheel 4.1 is adjustable.
The invention also comprises a pinch roller component 5 for assisting the profile conveying; this pinch roller subassembly 5 sets up the front end at the transfer station along section bar direction of transfer, pinch roller subassembly 5 and pinch roller subassembly homonymy and side by side.
The invention also comprises a speed measuring component 6 for detecting the conveying length of the section bar, wherein the speed measuring component 6 comprises a speed measuring wheel 6.1, a speed measuring wheel shaft 6.2, a speed measuring encoder 6.3, a support plate 6.6 and a speed measuring installation seat 6.5, the speed measuring installation seat 6.5 is formed by connecting two plates through pin shafts, a spring 6.4 for buffering is arranged between the two plates, the support plate 6.6 is arranged on the workbench 3.3 and props against the speed measuring installation seat 6.5, the speed measuring wheel shaft 6.2 is arranged on the speed measuring installation seat 6.5 in a penetrating mode, one end of the speed measuring wheel shaft 6.2 is connected with the speed measuring encoder 6.3, the other end of the speed measuring wheel shaft is connected with the speed measuring wheel 6.1, and the speed measuring wheel 6.1 extends into the conveying station to rotate synchronously with the conveyed section bar.
Example two
The present embodiment is different from the first embodiment only in that: as shown in fig. 12 and 13, the mounting holes 3.20 of the two combined pinch roller base plates 3.16 of the present embodiment are disposed on the center line of the combined pinch roller base plate 3.16, and the combined pinch rollers 3.13 mounted on the mounting holes 3.20 are disposed in a staggered manner with the auxiliary pinch rollers 3.12. During operation, the distance between the combined pressing wheel 3.13 and the auxiliary pressing wheel 3.12 can be adjusted according to bending parameters (bending direction, bending curvature and the like) of subsequent bending forming of the section, the auxiliary pressing wheel 3.12 and the first pressing wheel 3.1 are controlled to rotate synchronously, auxiliary pretreatment on the section is achieved, and the mode can compensate and correct the section again.
Other structures of the present embodiment are consistent with the present embodiment.
EXAMPLE III
The present embodiment is different from the first embodiment only in that: as shown in fig. 14, in the present embodiment, the mounting hole 3.20 of one combined pinch roller base plate 3.16 is disposed offset to the center line of the combined pinch roller base plate 3.16, the combined pinch roller 3.13 mounted on the mounting hole 3.20 and the auxiliary pinch roller 3.12 are disposed in a staggered manner, and the view of the combined pinch roller base plate is shown in fig. 12. The mounting holes 3.20 of the other combined pinch roller base plate 3.16 of the embodiment are all arranged on the central line of the combined pinch roller base plate 3.16, the two combined pinch rollers 3.13 respectively mounted on the mounting holes 3.20 are arranged opposite to the auxiliary pinch rollers 3.12, and the diagram of the combined pinch roller base plate is shown in fig. 11.
During operation, the distance between one combined pressing wheel 3.13 and the auxiliary pressing wheel 3.12 can be adjusted according to the bending parameters of the subsequent bending forming of the section, the position of the other combined pressing wheel 3.13 can be adjusted according to the width of the section, the auxiliary pressing wheel 3.12 and the first pressing wheel 3.1 are controlled to rotate synchronously, the auxiliary pretreatment and clamping transmission of the section are achieved, and the section can be compensated and corrected again through one combined pressing wheel 3.13.
Other structures of the present embodiment are consistent with the present embodiment.
The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.
Claims (10)
1. A variable-curvature profile positive and negative bending device is characterized in that: the method comprises the following steps: the profile forward and backward bending mechanism is used for bending the profile;
the conveying mechanism conveys the section bar in a pressure conveying mode;
the profile positive and negative bending mechanism comprises a first forming wheel assembly, a second forming wheel assembly and a forming wheel distance driving assembly; the first forming wheel assembly is provided with a first forming wheel, and the second forming wheel assembly is provided with a second forming wheel; the first forming wheel can make circular motion by taking the center of the second forming wheel as a circle center, and the second forming wheel can make circular motion by taking the center of the first forming wheel as a circle center; the first forming wheel assembly and the second forming wheel assembly adjust the distance between the first forming wheel assembly and the second forming wheel assembly through a forming wheel distance driving assembly; the position between the first forming wheel and the second forming wheel is used as a section bending station, and the section bending station is arranged opposite to the conveying mechanism; when the bending machine works, the relative positions of the first forming wheel assembly and the second forming wheel assembly are controlled and adjusted, so that the variable-curvature positive and negative bending of the section is realized.
2. The variable curvature profile positive and negative bending apparatus of claim 1, wherein: the conveying mechanism conveys the section bar in a pressure conveying mode, and the pressure conveying mode comprises the following steps: the conveying mechanism comprises a first pressing wheel assembly with a plurality of first pressing wheels and a second pressing wheel assembly with a plurality of second pressing wheels, and the first pressing wheels of the first pressing wheel assembly and the second pressing wheels of the second pressing wheel assembly are arranged in a staggered mode; the position between the first pressing wheel assembly and the second pressing wheel assembly is used as a conveying station of the section; the first pressing wheel of the first pressing wheel assembly is a power wheel, and the second pressing wheel of the second pressing wheel assembly can horizontally move along the vertical direction of the conveying direction of the section; during operation, the distance between the second pressing wheel and the first pressing wheel is adjusted, the first pressing wheel is controlled to rotate, and the sectional material is conveyed and subjected to stress removal pretreatment.
3. The variable curvature profile positive and negative bending apparatus of claim 2, wherein: the first pinch roller assembly further comprises a first pinch roller driving device and a pinch roller transmission device; the first pinch roller driving device is connected with the first pinch roller through a first pinch roller transmission device, so that the pinch rollers are driven to rotate synchronously;
the first pinch roller transmission device comprises an input gear, a driving gear and a transmission gear set; the driving gears are equal in number to the first pressing wheels and are connected with a same shaft of the pressing wheels, and the driving gears are meshed with the transmission gear set; the input gear is connected with an output shaft of the driving device of the pinch roller and is meshed with the driving gear, so that the pinch roller is driven to rotate synchronously.
4. The variable curvature profile positive and negative bending apparatus according to claim 2 or 3, wherein: the device also comprises a combined pressing wheel assembly and an auxiliary pressing wheel assembly; the auxiliary pinch roller assembly and the pinch roller assembly are arranged at the same side and in parallel and are provided with auxiliary pinch rollers, and the auxiliary pinch rollers are power wheels rotating synchronously with the pinch rollers; and the combined pinch roller assembly is arranged on the same side as the pinch roller assembly II and is provided with a combined pinch roller, and the combined pinch roller can horizontally move along the vertical direction of the conveying direction of the section bar.
5. The variable curvature profile positive and negative bending apparatus of claim 4, wherein: the combined pinch roller component also comprises a combined pinch roller driving device, a combined pinch roller sliding seat, a combined pinch roller bottom plate and a combined pinch roller transmission device; the combined pinch roller bottom plate is arranged on the combined pinch roller sliding seat, and the combined pinch roller is connected with the combined pinch roller bottom plate; the combined pinch roller driving device is connected with the combined pinch roller sliding seat through the combined pinch roller transmission device, so that the combined pinch roller on the combined pinch roller sliding seat is driven to horizontally move along the vertical direction of the profile conveying direction;
the combined pinch roller assembly further comprises a combined pinch roller shaft and a bearing; the combined pressing wheel base plate is provided with a mounting hole, the combined pressing wheel penetrates through the combined pressing wheel shaft, and the combined pressing wheel shaft is connected with the mounting hole through a bearing;
the installation hole is formed in the center line of the combined pinch roller base plate, and the combined pinch roller and the auxiliary pinch roller which are installed on the installation hole are arranged oppositely; when the device works, the auxiliary pinch roller and the pinch roller are controlled to rotate synchronously, so that the section bar is clamped and conveyed;
or the mounting hole is arranged on the central line of the combined pinch roller base plate in a deviation manner, and the combined pinch roller and the auxiliary pinch roller which are arranged on the mounting hole are arranged in a staggered manner; during operation, the distance between the combined pressing wheel and the auxiliary pressing wheel is adjusted, and the auxiliary pressing wheel and the pressing wheel are controlled to rotate synchronously, so that auxiliary pretreatment on the section is realized.
6. The variable curvature profile positive and negative bending apparatus of claim 1, wherein: the profile positive and negative bending mechanism further comprises a rotating assembly for driving the first forming wheel assembly and the second forming wheel assembly to rotate, and the rotating assembly is provided with a rotating base; the first forming wheel assembly and the second forming wheel assembly are arranged on the rotating base through forming wheel distance driving assemblies respectively.
7. The variable curvature profile positive and negative bending apparatus of claim 6, wherein: the relative position of the first forming wheel assembly and the second forming wheel assembly is adjusted through control, and the relative position refers to that: the forming wheel distance driving assembly is controlled to drive the second forming wheel assembly to the center of the rotating base, and the rotating assembly is controlled to drive the first forming wheel to rotate around the second forming wheel; and/or controlling the forming wheel distance driving assembly to adjust the distance from the first forming wheel assembly to the second forming wheel assembly, so as to adjust the relative positions of the first forming wheel assembly and the second forming wheel assembly;
or, the relative position of the first forming wheel assembly and the second forming wheel assembly is adjusted by controlling: the forming wheel distance driving assembly is controlled to drive the first forming wheel assembly to the center of the rotating base, and the rotating assembly is controlled to drive the second forming wheel to rotate around the first forming wheel; and/or controlling the forming wheel distance driving assembly to adjust the distance from the second forming wheel assembly to the first forming wheel assembly, so as to adjust the relative positions of the first forming wheel assembly and the second forming wheel assembly.
8. The variable curvature profile positive and negative bending apparatus of claim 1, wherein: the forming wheel distance driving assembly comprises a first forming wheel distance driving device and a second forming wheel distance driving device which are identical in structure; the first forming wheel distance driving device and the second forming wheel distance driving device respectively comprise a forming wheel distance adjusting driving piece, a gear transmission piece and a lead screw transmission piece; the forming wheel distance adjusting driving piece is connected with the screw rod driving piece through a gear driving piece, the screw rod driving piece of the first forming wheel distance driving device is connected with the first forming wheel assembly, the screw rod driving piece of the second forming wheel distance driving device is connected with the second forming wheel assembly, the first forming wheel assembly is driven to move by the first forming wheel distance driving device, and the second forming wheel assembly is driven to move by the second forming wheel distance driving device.
9. The variable curvature profile positive and negative bending apparatus of claim 6, wherein: the profile positive and negative bending mechanism further comprises a translation assembly for driving the first forming wheel assembly and the second forming wheel assembly to translate; the rotating base is arranged on the translation assembly.
10. The variable curvature profile positive and negative bending apparatus of claim 6, wherein: the profile positive and negative bending mechanism further comprises an upward bending assembly for pushing the profile to bend upwards; the upward bending assembly is arranged at the rear end of the section bending station along the section conveying direction.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110841781.7A CN113547005B (en) | 2021-07-26 | 2021-07-26 | Positive and negative bending equipment of section bar of variable camber |
| PCT/CN2021/143457 WO2023005151A1 (en) | 2021-07-26 | 2021-12-31 | Device for bending profile forward and backward at variable curvature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110841781.7A CN113547005B (en) | 2021-07-26 | 2021-07-26 | Positive and negative bending equipment of section bar of variable camber |
Publications (2)
| Publication Number | Publication Date |
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| CN113547005A true CN113547005A (en) | 2021-10-26 |
| CN113547005B CN113547005B (en) | 2022-10-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110841781.7A Active CN113547005B (en) | 2021-07-26 | 2021-07-26 | Positive and negative bending equipment of section bar of variable camber |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN113547005B (en) |
| WO (1) | WO2023005151A1 (en) |
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| CN113814334A (en) * | 2021-10-29 | 2021-12-21 | 国网冀北电力有限公司廊坊供电公司 | Cable bending device |
| CN114798849A (en) * | 2022-06-20 | 2022-07-29 | 潍坊达创数控设备有限公司 | Special-shaped metal frame forming machine |
| CN115041556A (en) * | 2022-08-15 | 2022-09-13 | 潍坊达创数控设备有限公司 | Metal section molding machine |
| WO2023005151A1 (en) * | 2021-07-26 | 2023-02-02 | 广州高谱机械科技有限公司 | Device for bending profile forward and backward at variable curvature |
| CN117960912A (en) * | 2024-03-05 | 2024-05-03 | 广东元晟智能装备制造有限公司 | Five-roller rounding machine for angle iron and rounding method |
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Also Published As
| Publication number | Publication date |
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| CN113547005B (en) | 2022-10-04 |
| WO2023005151A1 (en) | 2023-02-02 |
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Address after: 820 Tian'an Technology Development Building, No. 555 North Panyu Avenue, Donghuan Street, Panyu District, Guangzhou City, Guangdong Province, 511400 Patentee after: GUANGZHOU G CLEF MECHANICAL TECHNOLOGY Co.,Ltd. Address before: 511499 709, building 14, Tian'an headquarters center, No. 555, North Panyu Avenue, Donghuan street, Panyu District, Guangzhou City, Guangdong Province Patentee before: GUANGZHOU G CLEF MECHANICAL TECHNOLOGY Co.,Ltd. |
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