CN114309153B - Equipment for bending profile steel - Google Patents
Equipment for bending profile steel Download PDFInfo
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- CN114309153B CN114309153B CN202111496471.2A CN202111496471A CN114309153B CN 114309153 B CN114309153 B CN 114309153B CN 202111496471 A CN202111496471 A CN 202111496471A CN 114309153 B CN114309153 B CN 114309153B
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 65
- 239000010959 steel Substances 0.000 title claims abstract description 65
- 238000005452 bending Methods 0.000 title claims abstract description 42
- 238000007599 discharging Methods 0.000 claims abstract description 68
- 239000000463 material Substances 0.000 claims abstract description 52
- 230000005540 biological transmission Effects 0.000 claims abstract description 40
- 230000000694 effects Effects 0.000 abstract description 9
- 238000013459 approach Methods 0.000 abstract description 4
- 239000004677 Nylon Substances 0.000 description 6
- 229920001778 nylon Polymers 0.000 description 6
- 230000001960 triggered effect Effects 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 241000276425 Xiphophorus maculatus Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
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- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The invention relates to the technical field of steel processing, in particular to a steel bending device, which comprises a processing box, a base, a positioning box, a control box and a guide post, wherein the processing box is arranged on the base, the positioning box is arranged in the processing box, a feeding channel for steel to pass through is arranged on the positioning box, the guide post is arranged in the processing box and is positioned at one side of the positioning box, and the control box is arranged in the processing box and further comprises: the material conveying belt is arranged on the processing box and is positioned at one side of the material feeding channel; the bending execution module is arranged in the processing box and is used for bending steel materials; the discharging module is also arranged in the processing box and used for discharging the bent steel products out of the processing box and storing the steel products; the transmission module is arranged between the bending execution module and the discharging module; the automatic stripping device has the advantages that the automatic stripping effect is realized, the auxiliary stripping at one side by manpower is avoided, the automatic effect of the whole device is improved, and the probability of safety accidents caused by the fact that workers approach processing equipment is reduced.
Description
Technical Field
The invention relates to the technical field of steel processing, in particular to equipment for bending profile steel.
Background
According to the smelting quality of steel, the section steel is divided into common section steel and high-quality section steel. The common section steel is divided into large section steel, medium section steel and small section steel according to the existing metal product catalogue. The common section steel can be divided into I-steel, channel steel, angle steel, round steel and the like according to the section shape.
In the process of processing and producing plate-shaped steel, bending treatment is required to be performed on the steel so as to obtain a U-shaped part structure, so that related bending equipment is required.
After traditional bending equipment bends the platy shaped steel, need the staff to take out the shaped steel after bending the processing manually, it is very inconvenient, degree of automation is low, and the staff closely approaches equipment for a long time also has the potential safety hazard.
Disclosure of Invention
The invention aims to provide a device for bending profile steel, which solves the problems in the prior art.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the utility model provides a shaped steel is buckled and is used equipment, includes processing case, base, positioning box, control box and guide post, processing case sets up on the base, and the positioning box sets up in processing incasement, is equipped with the pan feeding passageway that supplies the steel to pass on the positioning box, the guide post sets up in processing incasement and is located one side of positioning box, and the control box sets up in processing incasement, still includes:
the material conveying belt is arranged on the processing box and is positioned at one side of the material feeding channel;
the bending execution module is arranged in the processing box and is used for bending steel materials;
the discharging module is also arranged in the processing box and used for discharging the bent steel products out of the processing box and storing the steel products; and
the transmission module is arranged between the bending execution module and the discharging module, and the bending execution module can control the discharging module to synchronously work through the transmission module during working.
The application further adopts the technical scheme that: a plurality of rotating rollers are movably arranged in the feeding channel.
The application further adopts the technical scheme that: the bending execution module comprises:
the pushing column is movably arranged in a guide rail formed in the processing box;
the turntable is movably arranged in the processing box and is connected with the pushing column through a driving arm, and the driving arm is connected with the processing box through a tension spring;
the power element is arranged in the processing box, and the output end of the power element is connected with the turntable; and
the opening and closing control unit is arranged between the turntable and the positioning box and used for controlling the opening and closing of the power element.
The application further adopts the technical scheme that: the opening and closing control unit comprises a first conducting strip, a second conducting strip and a conducting block;
the first conducting strip and the second conducting strip are both arranged on the turntable, the conducting blocks are arranged on the positioning box, and the conducting blocks are positioned on the moving paths of the first conducting strip and the second conducting strip.
The application further adopts the technical scheme that: the discharging module comprises a discharging seat, an air cylinder, a discharging plate and a locking unit;
the material discharging seat is arranged in the processing box, the material discharging plate is movably arranged on the material discharging seat and is connected with the material discharging seat through a cylinder, the cylinder is connected with the pushing column through a transmission module, the locking unit is arranged between the material discharging plate and the material discharging seat and can fix the position of the material discharging plate on the material discharging seat, and one side of the base is provided with the material storing box.
The application further adopts the technical scheme that: the locking unit comprises a clamping column, a plurality of clamping grooves and an adjusting element;
the clamping columns are movably arranged on the discharging plate and are elastically connected with each other, the adjusting element is arranged between the clamping columns and the discharging plate and can adjust the positions of the clamping columns, the adjusting element is electrically connected with the opening and closing control unit, and the clamping grooves are formed in the discharging seat and located on the moving path of the clamping columns.
The application further adopts the technical scheme that: the transmission module includes:
the transmission box is arranged on the processing box, and a transmission medium is filled between the transmission box and the fixed end of the air cylinder;
the piston is movably arranged in the transmission case and is elastically connected with the transmission case, and the piston is connected with the push column through a soft piece; and
the sliding plate is movably arranged in a pre-storing cavity formed in the transmission case, and the sliding plate is elastically connected with the inner wall of the pre-storing cavity.
Compared with the prior art, the technical scheme provided by the embodiment of the invention has the following beneficial effects:
according to the embodiment of the invention, by adopting a linkage structure, the material discharging module can be controlled to synchronously work by utilizing the transmission module while the bending execution module works, so that the material discharging module is prevented from obstructing the bending work of the material discharging module in the bending process, and after the bending is completed, the material discharging module can timely discharge bent section steel into the material storage box, the effect of automatic material stripping is realized, the auxiliary separation of a worker at one side is avoided, the automation effect of the whole device is improved, and the probability of safety accidents caused by the approach of workers to processing equipment is reduced.
Drawings
FIG. 1 is a schematic view of a medium-sized steel bending apparatus according to an embodiment of the present invention;
FIG. 2 is an enlarged schematic view of the structure at A of the apparatus for bending medium-sized steel according to the embodiment of the present invention;
FIG. 3 is an enlarged schematic view of the structure of the middle-sized steel bending apparatus according to the embodiment of the present invention at the position B;
FIG. 4 is an enlarged schematic view of the structure at C in the apparatus for bending medium-sized steel according to the embodiment of the present invention;
fig. 5 is an assembly view of a discharging module in an apparatus for bending medium-sized steel according to an embodiment of the present invention.
Reference numerals in the schematic drawings illustrate:
the device comprises a 1-processing box, a 2-base, a 3-material conveying belt, a 4-positioning box, a 5-storage box, a 6-rotating roller, a 7-guide column, an 8-guide rail, a 9-pushing column, a 10-tension spring, an 11-rotating disc, a 12-stepping motor, a 13-driving arm, a 14-first conducting sheet, a 15-second conducting sheet, a 16-conducting block, a 17-material discharging seat, an 18-cylinder, a 19-material discharging plate, a 20-clamping groove, a 21-clamping column, a 22-electromagnetic ring, a 23-transmission box, a 24-piston, a 25-nylon rope, a 26-pre-storing cavity, a 27-sliding plate and a 28-control box.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art without making any inventive effort, based on the embodiments of the present invention are within the scope of the present invention, and the present invention is further described below with reference to the embodiments.
Referring to fig. 1-5, in one embodiment of the present application, a device for bending a section steel includes a processing box 1, a base 2, a positioning box 4, a control box 28 and a guide post 7, where the processing box 1 is disposed on the base 2, the positioning box 4 is disposed in the processing box 1, a feeding channel for passing through a steel is disposed on the positioning box 4, the guide post 7 is disposed in the processing box 1 and is located at one side of the positioning box 4, and the control box 28 is disposed in the processing box 1, and further includes:
the material conveying belt 3 is arranged on the processing box 1 and is positioned at one side of the material feeding channel;
the bending execution module is arranged in the processing box 1 and is used for bending steel materials;
the discharging module is also arranged in the processing box 1 and is used for discharging the bent steel products out of the processing box 1 and storing the steel products; and
the transmission module is arranged between the bending execution module and the discharging module, and the bending execution module can control the discharging module to synchronously work through the transmission module during working.
In a specific case of this embodiment, a plurality of rotating rollers 6 are movably disposed in the feeding channel.
In another specific case of this embodiment, the bending execution module includes:
the pushing column 9 is movably arranged in a guide rail 8 formed in the processing box 1;
the turntable 11 is movably arranged in the processing box 1 and is connected with the push column 9 through the driving arm 13, and the driving arm 13 is connected with the processing box 1 through the tension spring 10;
the power element is arranged in the processing box 1, and the output end of the power element is connected with the turntable 11; and
and the opening and closing control unit is arranged between the turntable 11 and the positioning box 4 and is used for controlling the opening and closing of the power element.
It should be noted that, the power element may be a stepper motor 12 or a servo motor, in this embodiment, the power element is preferably a stepper motor 12, the stepper motor 12 is disposed in the processing box 1, and the output end of the stepper motor 12 is connected to the turntable 11, and the specific model of the stepper motor 12 is not specifically limited herein, and may be adjusted accordingly according to the actual processing strength.
The specific explanation is that the opening and closing control unit comprises a first conducting strip 14, a second conducting strip 15 and a conducting block 16;
the first conductive sheet 14 and the second conductive sheet 15 are both arranged on the turntable 11, the conductive block 16 is arranged on the positioning box 4, and the conductive block 16 is positioned on the moving paths of the first conductive sheet 14 and the second conductive sheet 15.
It should be noted that, a time delay device (not shown in the drawing) is disposed in the control box 28, and the time delay device is electrically connected to the on-off control unit.
During practical application, a worker places steel to be processed on the material conveying belt 3, pulls the steel into the positioning box 4 through the material conveying belt 3 and stretches out a certain margin for bending work, then the control box 28 controls the stepping motor 12 to work to drive the rotary table 11 to rotate clockwise in the direction shown in fig. 1, the push post 9 is driven to move along the guide rail 8 and collide with the steel under the action of the driving arm 13, the steel is bent under the action of the guide post 7, the push post 9 can be driven to synchronously work and store force while moving, the second conducting strip 15 and the conducting block 16 are contacted, the stepping motor 12 is triggered to be powered off, the driving arm 13 is reset under the action of elastic restoring force of the tension spring 10, the bent steel can be triggered to be ejected by the discharging module, the automatic stripping effect is realized, and when the driving lever arm is reset, the first conducting strip 14 and the conducting block 16 are contacted again, the stepping motor 12 is triggered to automatically recover to be powered on and work after a period of time under the action of the time delay device.
Referring to fig. 1, 2, 3 and 5, as another preferred embodiment of the present application, the discharging module includes a discharging seat 17, a cylinder 18, a discharging plate 19 and a locking unit;
the material discharging seat 17 is arranged in the processing box 1, the material discharging plate 19 is movably arranged on the material discharging seat 17 and is connected with the material discharging seat through the air cylinder 18, the air cylinder 18 is connected with the pushing column 9 through the transmission module, the locking unit is arranged between the material discharging plate 19 and the material discharging seat 17 and can fix the position of the material discharging plate 19 on the material discharging seat 17, and the material storage box 5 is arranged on one side of the base 2.
In this embodiment, the locking unit includes a clamping post 21, a plurality of clamping grooves 20 and an adjusting element;
the clamping columns 21 are movably arranged on the discharging plate 19 and are elastically connected with each other, the adjusting elements are arranged between the clamping columns 21 and the discharging plate 19 and can adjust the positions of the clamping columns 21, the adjusting elements are electrically connected with the opening and closing control units, and the clamping grooves 20 are arranged on the discharging seat 17 and are located on the moving paths of the clamping columns 21.
It should be noted that the adjusting element may be a linear motor, an electric cylinder, or a hydraulic cylinder, so long as the position of the clamping post 21 on the discharge plate 19 can be adjusted, and in this embodiment, the adjusting element is preferably a set of electromagnetic rings 22, and the opposite surfaces of the clamping post 21 and the discharge plate 19 are both provided with the electromagnetic rings 22.
In practical application, when the push column 9 moves, the cylinder 18 can be controlled to shrink through the transmission module, the discharge plate 19 is driven to move rightwards as shown in fig. 1, and when the conductive block 16 is contacted with the second conductive sheet 15, under the action of the time delay device, the electromagnetic ring 22 is controlled to be electrified for a period of time and then automatically cut off, so that when the tension spring 10 drives the driving arm 13 and the push column 9 to reset, the clamping column 21 is clamped into the clamping groove 20 to fix the position of the discharge plate 19, and when the push column 9 is completely reset, the electromagnetic ring 22 is powered off, the cylinder 18 is instantaneously stretched to drive the discharge plate 19 to pop out and discharge bent steel into the storage box 5, and thus the automatic stripping function is realized instead of workers.
Referring to fig. 1, 4 and 5, as another preferred embodiment of the present application, the transmission module includes:
the transmission case 23 is arranged on the processing case 1, and transmission media are filled between the transmission case 23 and the fixed ends of the cylinder 18;
the piston 24 is movably arranged in the transmission case 23 and is elastically connected with the transmission case, and the piston 24 is connected with the push column 9 through a soft piece; and
the sliding plate 27 is movably arranged in the pre-storing cavity 26 formed in the transmission case 23, and the sliding plate 27 is elastically connected with the inner wall of the pre-storing cavity 26.
Without limitation, the transmission medium in this embodiment may be nitrogen, hydrogen or normal air, and is not specifically limited in this embodiment.
In addition, the soft member in this embodiment may be a steel rope, a nylon rope 25 or a belt, and in this embodiment, the soft member is preferably a nylon rope 25, and the nylon rope 25 is connected between the piston 24 and the push post 9.
In practical application, when the push column 9 moves along the guide rail 8, the piston 24 can be driven to move along the transmission case 23 through the action of the nylon rope 25, the air cylinder 18 is driven to shrink under the action of air pressure, so that the push plate is prevented from obstructing bent steel, after bending, the conductive block 16 is contacted with the second conductive sheet 15, the electromagnetic ring 22 is triggered to instantly electrify and attract the clamping column 21 to be inserted into the clamping groove 20 to limit the position of the discharge plate 19, at the moment, the air in the transmission case 23 extrudes the sliding plate 27 and stores in the pre-storing cavity 26 under the action of the tension spring 10, so that the pre-storing work of a transmission medium is realized, and under the action of the time delay, the electromagnetic ring 22 is automatically powered off after a period of time, at the moment, the air cylinder 18 is enabled to instantly stretch to eject the discharge plate 19 under the action of elastic restoring force between the sliding plate 27 and the cavity 26, so that the bent steel is pushed into the storage case 5, the automatic stripping effect is realized, the automatic auxiliary stripping effect is avoided, namely, the automatic auxiliary stripping by the side is improved, the probability of approaching the processing equipment is reduced, and the safety accident is caused by the processing personnel.
The working principle of the application is as follows:
the staff puts the steel to be processed on the material conveying belt 3, pull the steel into the positioning box 4 through the material conveying belt 3 and stretch out a certain margin for bending work, then the control box 28 controls the stepping motor 12 to work to drive the turntable 11 to rotate clockwise as shown in figure 1, under the action of the driving arm 13, the pushing post 9 is driven to move along the guide rail 8 and collide with the steel, under the action of the guide post 7, the steel is bent, when the pushing post 9 moves along the guide rail 8, the piston 24 can be driven to move along the transmission box 23 under the action of the nylon rope 25, the cylinder 18 is driven to shrink under the action of the air pressure, thereby avoiding the obstruction of the pushing plate on the bent steel, and after the bending treatment, the contact between the conductive block 16 and the second conductive sheet 15 triggers the instant electrifying phase suction of the electromagnetic ring 22 to insert the clamping post 21 into the clamping groove 20 to limit the position of the discharging plate 19, at this time, when the driving arm 13 and the piston 24 are driven to reset under the action of the tension spring 10, the air in the transmission case 23 extrudes the sliding plate 27 and stores in the pre-storing cavity 26, thus realizing pre-storing work of transmission media, and under the action of the time delay device, the electromagnetic ring 22 is automatically powered off after being electrified for a period of time, at this time, under the action of elastic restoring force between the sliding plate 27 and the pre-storing cavity 26, the air cylinder 18 is enabled to be instantaneously stretched to eject the discharging plate 19, so that bent steel is pushed into the storage box 5, the effect of automatic discharging is realized, the auxiliary separation of manpower is avoided, namely, the automatic effect of the whole device is improved, the probability of safety accidents caused by the approach of workers to processing equipment is reduced, and when the driving lever arm is reset, the first conducting strip 14 and the conducting block 16 are contacted again under the action of the time delay device, the stepper motor 12 is triggered to automatically resume power on and operate after a period of time.
The invention and its embodiments have been described above by way of illustration and not limitation, and the invention is illustrated in the accompanying drawings and described in the drawings in which the actual structure is not limited thereto. Therefore, if one of ordinary skill in the art is informed by this disclosure, the structural mode and the embodiments similar to the technical scheme are not creatively designed without departing from the gist of the present invention.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (2)
1. The utility model provides a shaped steel is buckled and is used equipment, includes processing case, base, positioning box, control box and guide post, processing case sets up on the base, and the positioning box sets up in processing incasement, is equipped with the pan feeding passageway that supplies the steel to pass on the positioning box, the guide post sets up in processing incasement and is located one side of positioning box, and the control box sets up in processing incasement, its characterized in that still includes:
the material conveying belt is arranged on the processing box and is positioned at one side of the material feeding channel;
the bending execution module is arranged in the processing box and is used for bending steel materials;
the discharging module is also arranged in the processing box and used for discharging the bent steel products out of the processing box and storing the steel products; and
the transmission module is arranged between the bending execution module and the discharging module, and the bending execution module can control the discharging module to synchronously work through the transmission module when in work;
the bending execution module comprises:
the pushing column is movably arranged in a guide rail formed in the processing box;
the turntable is movably arranged in the processing box and is connected with the pushing column through a driving arm, and the driving arm is connected with the processing box through a tension spring;
the power element is arranged in the processing box, and the output end of the power element is connected with the turntable; and
the opening and closing control unit is arranged between the turntable and the positioning box and used for controlling the opening and closing of the power element;
the discharging module comprises a discharging seat, an air cylinder, a discharging plate and a locking unit;
the material discharging seat is arranged in the processing box, the material discharging plate is movably arranged on the material discharging seat and is connected with the material discharging seat through a cylinder, the cylinder is connected with the pushing column through a transmission module, the locking unit is arranged between the material discharging plate and the material discharging seat and can fix the position of the material discharging plate on the material discharging seat, and one side of the base is provided with a material storage box;
the transmission module includes:
the transmission box is arranged on the processing box, and a transmission medium is filled between the transmission box and the fixed end of the air cylinder;
the piston is movably arranged in the transmission case and is elastically connected with the transmission case, and the piston is connected with the push column through a soft piece; and
the sliding plate is movably arranged in a pre-storing cavity formed in the transmission case, and is elastically connected with the inner wall of the pre-storing cavity;
the opening and closing control unit comprises a first conducting strip, a second conducting strip and a conducting block;
the first conducting strip and the second conducting strip are both arranged on the turntable, the conducting block is arranged on the positioning box, and the conducting block is positioned on the moving paths of the first conducting strip and the second conducting strip;
the locking unit comprises a clamping column, a plurality of clamping grooves and an adjusting element;
the clamping columns are movably arranged on the discharging plate and are elastically connected with each other, the adjusting element is arranged between the clamping columns and the discharging plate and can adjust the positions of the clamping columns, the adjusting element is electrically connected with the opening and closing control unit, and the clamping grooves are formed in the discharging seat and located on the moving path of the clamping columns.
2. The apparatus for bending steel according to claim 1, wherein a plurality of rotating rollers are movably disposed in the feed passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111496471.2A CN114309153B (en) | 2021-12-09 | 2021-12-09 | Equipment for bending profile steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111496471.2A CN114309153B (en) | 2021-12-09 | 2021-12-09 | Equipment for bending profile steel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114309153A CN114309153A (en) | 2022-04-12 |
| CN114309153B true CN114309153B (en) | 2024-04-05 |
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ID=81050598
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111496471.2A Active CN114309153B (en) | 2021-12-09 | 2021-12-09 | Equipment for bending profile steel |
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| Country | Link |
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| CN (1) | CN114309153B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117840273A (en) * | 2024-03-07 | 2024-04-09 | 泉州凯业装配式建筑有限公司 | Full-automatic positioning numerical control plate bending machine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005011887A1 (en) * | 2003-08-01 | 2005-02-10 | Sanoh Industrial Co., Ltd. | Pipe bender |
| CN110449533A (en) * | 2019-09-17 | 2019-11-15 | 陈烁 | It is not easily broken the electrode apparatus for bending of electrode |
| CN111250571A (en) * | 2020-01-15 | 2020-06-09 | 浙江强伟五金有限公司 | High-efficient curtain rod bender |
| CN211275999U (en) * | 2019-11-28 | 2020-08-18 | 芜湖和齐模具有限公司 | Steel pipe bending machine capable of automatically transferring loads |
| CN112705598A (en) * | 2020-12-11 | 2021-04-27 | 安徽科达汽车轴瓦有限公司 | Compression device capable of automatically pushing and compacting for steel pipe machining |
-
2021
- 2021-12-09 CN CN202111496471.2A patent/CN114309153B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005011887A1 (en) * | 2003-08-01 | 2005-02-10 | Sanoh Industrial Co., Ltd. | Pipe bender |
| CN110449533A (en) * | 2019-09-17 | 2019-11-15 | 陈烁 | It is not easily broken the electrode apparatus for bending of electrode |
| CN211275999U (en) * | 2019-11-28 | 2020-08-18 | 芜湖和齐模具有限公司 | Steel pipe bending machine capable of automatically transferring loads |
| CN111250571A (en) * | 2020-01-15 | 2020-06-09 | 浙江强伟五金有限公司 | High-efficient curtain rod bender |
| CN112705598A (en) * | 2020-12-11 | 2021-04-27 | 安徽科达汽车轴瓦有限公司 | Compression device capable of automatically pushing and compacting for steel pipe machining |
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| Publication number | Publication date |
|---|---|
| CN114309153A (en) | 2022-04-12 |
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