CN112354883A - Steel pipe classification device - Google Patents
Steel pipe classification device Download PDFInfo
- Publication number
- CN112354883A CN112354883A CN202011143965.8A CN202011143965A CN112354883A CN 112354883 A CN112354883 A CN 112354883A CN 202011143965 A CN202011143965 A CN 202011143965A CN 112354883 A CN112354883 A CN 112354883A
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- CN
- China
- Prior art keywords
- steel pipe
- rotating plate
- frame body
- sorting
- channel
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/04—Sorting according to size
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/36—Sorting apparatus characterised by the means used for distribution
- B07C5/361—Processing or control devices therefor, e.g. escort memory
- B07C5/362—Separating or distributor mechanisms
Abstract
The invention relates to the technical field of machine manufacturing, and discloses a steel pipe sorting device which comprises a sorting frame, a driving device and a tray trolley, wherein the sorting frame is arranged on the tray trolley; the sorting frame comprises a frame body, at least one rotating plate and at least two fixed plates fixedly connected to the frame body, wherein each fixed plate is sequentially arranged in a downward inclination mode from the first end portion to the second end portion of the frame body, the upper surfaces of the fixed plates are located in the same inclined plane, a channel for a steel pipe to pass through is reserved between the fixed plates, and the rotating plate is rotatably connected to the fixed plates or the frame body; the driving device is arranged on the fixed plate or the frame body and is connected with the rotating plate and used for driving the rotating plate to turn over up and down so that the rotating plate covers or opens the channel; the tray trolley is arranged below the frame body and used for bearing the steel pipe falling from the channel. The steel pipe classifying device provided by the invention can automatically classify steel pipes, and improves the classifying efficiency.
Description
Technical Field
The invention relates to the technical field of machine manufacturing, in particular to a steel pipe sorting device.
Background
In the ship construction process, steel pipes need to be classified according to the lengths of the steel pipes, so that subsequent production and processing are facilitated. At the present stage, the working personnel need to constantly carry different steel pipes to the corresponding storage areas, so as to facilitate the subsequent processing and production. The manual classification mode can increase the labor intensity of workers, is low in efficiency, is difficult to meet the requirement of rapid ship production, and cannot adapt to the development trend of ship construction.
Disclosure of Invention
The purpose of the invention is: provided is a steel pipe classification device which can automatically classify steel pipes and improve classification efficiency.
In order to achieve the aim, the invention provides a steel pipe sorting device which comprises a sorting frame, a driving device and a tray trolley, wherein the sorting frame is arranged on the tray trolley;
the sorting frame comprises a frame body, at least one rotating plate and at least two fixed plates fixedly connected to the frame body, wherein each fixed plate is sequentially arranged from a first end part to a second end part of the frame body in a downward inclined mode, the upper surface of each fixed plate is located in the same inclined plane, a channel for a steel pipe to pass through is reserved between the fixed plates, and the rotating plate is rotatably connected to the fixed plates or the frame body;
the driving device is arranged on the fixed plate or the frame body, is connected with the rotating plate and is used for driving the rotating plate to turn over up and down so that the rotating plate covers or opens the channel;
the tray trolley is arranged below the frame body and used for bearing the steel pipe falling from the channel.
Preferably, at least three pulleys are arranged on the bottom side of the tray trolley.
Preferably, the device further comprises a sliding rail, and each pulley is connected to the sliding rail in a sliding manner.
Preferably, the material rack is detachably connected to the tray trolley.
Preferably, the driving device is a cylinder.
Preferably, the tray trolley further comprises a controller, the controller is mounted on the frame body, and the controller is electrically connected with the driving device and the tray trolley respectively.
Preferably, the device further comprises a detection device for detecting the length of the steel pipe, and the detection device is electrically connected with the controller.
Preferably, the sorting device further comprises a shunting guide frame, and the shunting guide frame is arranged at the second end part of the sorting frame.
As the preferred scheme, still include driving motor and two at least drive chains, driving motor sets up on the reposition of redundant personnel guide frame, drive chain with driving motor's output is connected for the transportation steel pipe.
Compared with the prior art, the steel pipe classifying device provided by the invention has the beneficial effects that: the upper surfaces of the fixing plates are all positioned in the same inclined plane, so that the steel pipe can roll from the first end part to the second end part of the frame body by means of the gravity of the steel pipe. The rotating plate is rotatably connected to the fixed plate or the frame body and is connected with the driving device, and the driving device can control the rotating plate to turn over up and down, so that the rotating plate covers or opens the channel. When the rotating plate covers the channel, the steel pipe rolls from the surfaces of the rotating plate and the fixed plate and is output from the second end part of the frame body to the next process. When the rotating plate is turned downwards, the steel pipe rolls to the upper part of the channel and falls onto the tray trolley from the channel. This steel pipe sorter can be classified more than two kinds of steel pipes effectively through setting up the inclined plane and controlling the rotor plate upset, realizes automatic high-efficient classification, has saved the manpower, has improved classification efficiency, can accelerate the cycle of shipbuilding.
Drawings
Fig. 1 is a perspective view of a steel pipe sorting apparatus according to an embodiment of the present invention;
FIG. 2 is a side view of a sorting shelf and a holding tray of an embodiment of the invention.
In the figure, 1, a pallet trolley; 2. a material rack; 3. a sorting rack; 31. a frame body; 32. a rotating plate; 33. a fixing plate; 4. a pulley; 5. a controller; 6. a shunt guide frame; 7. a transmission chain.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the description of the present invention, it should be understood that the terms used in the present invention are used in the description of the present invention, and it should be understood that the terms "upper", "lower", "vertical", "bottom", "inner", and the like used in the present invention are used in the orientation or positional relationship indicated in the drawings, which are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
It should be understood that the terms "first", "second", "third", "fourth", etc. are used herein to describe various information, but the information should not be limited to these terms, and these terms are only used to distinguish one type of information from another. For example, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information, without departing from the scope of the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1 and 2, a steel pipe sorting apparatus according to a preferred embodiment of the present invention includes a sorting frame 3, a driving device (not shown in the drawings), and a pallet carriage 1; the sorting frame 3 comprises a frame body 31, at least one rotating plate 32 and at least two fixing plates 33 fixedly connected to the frame body 31, wherein each fixing plate 33 is sequentially arranged in a downward inclination manner from the first end part to the second end part of the frame body 31, the upper surfaces of the fixing plates 33 are positioned in the same inclined plane, a channel for a steel pipe to pass through is reserved between the fixing plates 33, and the rotating plate 32 is rotatably connected to the fixing plates 33 or the frame body 31; the driving device is arranged on the fixed plate 33 or the frame body 31, connected with the rotating plate 32 and used for driving the rotating plate 32 to turn up and down, so that the rotating plate 32 covers or opens the channel; the tray trolley 1 is arranged below the frame body 31 and used for receiving the steel pipes falling from the channel.
Based on above-mentioned technical scheme, the both ends of fixed plate 33 all with support body 31 fixed connection, the height of fixed plate 33 is from the first end of support body 31 to the second end of support body 31 downward sloping setting gradually for the steel pipe can roll to the other end from the one end of classified shelf 3. In actual production, a worker may place a bracket or a tray or the like for carrying steel pipes at the second end of the frame body 31 to catch a certain kind of steel pipe. The rotating plate 32 on the sorting frame 3 is positioned above the channel and is hinged on any one of the fixing plates 33 adjacent to the rotating plate through a rotating shaft. The rotating plate 32 is connected to the output of the driving device. A channel is reserved between any two fixing plates 33 and can be communicated with the tray trolley 1 arranged below the frame body 31. The tray trolley 1 can contain one or more types of steel pipes. When more than two kinds of steel pipes roll from the first end of the sorting frame 3, a worker controls the driving device to enable the rotating plate 32 to overturn downwards, the channel is opened, and the steel pipe of one kind falls under the influence of self gravity and falls from the channel. When another kind of steel pipe is about to roll to the channel top, the staff controls the driving device to drive the rotating plate 32 to turn upwards, the rotating plate 32 covers the channel, at this moment, the upper surface of the rotating plate 32 and the upper surface of the fixing plate 33 are located in the same plane, the steel pipe can roll on the surface of the rotating plate 32 and roll out from the second end of the frame body 31, and automatic classification of the steel pipe is realized. The rotating plate 32 is driven to overturn by the driving device, more than two types of steel pipes can be effectively classified by utilizing the inclined plane formed by the fixing plate 33, and when the finished product rolls on the inclined plane, the classification can be completed, the efficiency is higher, the ship production requirement can be met, the ship building period is shortened, and the efficient ship production beat is formed. And this steel pipe sorter need not adopt artificial mode to classify, and the staff no longer need a plurality of steel pipes of manual transport, has reduced staff's intensity of labour.
The tray trolley 1 is connected below the sorting frame 3 in a sliding mode, when the tray trolley 1 is full of steel pipes, a worker can push out the tray trolley 1, and after the tray trolley 1 is emptied, the tray trolley 1 is pushed to the position right below the frame body 31. The bottom side of the tray trolley 1 is provided with at least three pulleys 4, and the sliding of the tray trolley 1 is realized through the pulleys 4. The shape of tray dolly 1 in this embodiment is the cuboid, and its bottom side is connected with four pulleys 4, and each pulley 4 is located four angles of tray dolly 1 respectively, can the stable support tray dolly 1. The steel tube sorting device further comprises a slide rail (not shown in the figure), and each pulley 4 is connected to the slide rail in a sliding manner. The number of slide rails is two, and two slide rails are close to the first end and the second end of support body 31 respectively. The sliding rails are arranged to limit the moving direction of the tray trolley 1, so that the tray trolley 1 can move stably and cannot tilt.
In order to make the steel pipe sorting apparatus capable of discriminating a plurality of kinds of steel pipes, the number of the rotating plates 32 and the number of the passages are two or more. The tray trolley 1 is detachably connected with material racks 2, and the number of the material racks 2 is the same as that of the channels. In the classification process, each material frame 2 corresponds to each channel one by one, and the material frames 2 are positioned under the channels. When the first type of steel pipe starts to roll from the first end of the frame body 31, the worker can control one of the driving devices to drive the corresponding rotating plate 32 to turn downwards, so that the steel pipe falls onto one of the material frames 2 from the corresponding channel. When the second type steel pipe starts to roll from the first end of the frame body 31, the worker can control another driving device to drive the corresponding rotating plate 32 to turn downwards, so that the steel pipe falls onto another material frame 2 from the corresponding channel. When the third type of steel pipes start to roll from the first end of the frame body 31, the worker can control the corresponding driving device to drive the corresponding rotating plate 32 to turn upwards, so that the steel pipes roll to the second end of the frame body 31 from above the rotating plate 32, and classification of the steel pipes is realized.
Specifically, the driving device is a cylinder, the cylinder is vertically installed on one side of the fixed plate 33, and a piston rod of the cylinder is hinged with the rotating plate 32. When the piston rod of the cylinder stretches out downwards, the rotating plate 32 can be driven to turn downwards, and when the piston rod of the cylinder contracts upwards and resets, the rotating plate 32 turns upwards along with the piston rod of the cylinder. The rotation of the rotating plate 32 can be effectively controlled by driving the rotating plate 32 to turn over by the air cylinder.
Preferably, the steel pipe sorting device further comprises a controller 5, the controller 5 is installed on the frame body 31, and the controller 5 is electrically connected with the driving device and the tray trolley 1 respectively. When the number of the rotating plates 32 is two or more, the controller 5 is electrically connected to each driving device, respectively. The controller 5 may be a PLC control system. The turnover condition of each rotating plate 32 can be simultaneously controlled by the operator only by controlling the controller 5, and the operator does not need to open or close a plurality of driving devices one by one, thereby further facilitating the operation of the operator and reducing the labor intensity. The controller 5 can also control the tray trolley 1 to move on the sliding rail, and workers do not need to manually push the tray trolley 1, so that labor is saved. More preferably, the steel pipe sorting apparatus further includes a detecting device 9 (not shown in the drawings) for detecting the steel pipe, the detecting device being electrically connected to the controller 5. The detection device may be a length measuring sensor, which is installed at the first end of the frame body 31, and is capable of detecting the length of the steel pipe rolled from the fixing plate 33, and feeding the length data back to the controller 5, and the controller 5 classifies the steel pipe according to the data, and timely controls the corresponding driving device to drive the corresponding rotating plate 32 to overturn, thereby realizing classification. Through installation detection device for this steel pipe sorter can realize closed-loop control, the high-efficient categorised steel pipe of full automatization.
In addition, steel pipe sorting device still includes reposition of redundant personnel guide 6, and reposition of redundant personnel guide 6 sets up the second tip at classified shelf 3. The diversion guide 6 is used for receiving and guiding out a steel pipe of a certain type. The steel pipe sorting device further comprises a driving motor (not shown in the figure) and at least two transmission chains 7, the driving motor is arranged on the shunting guide frame 6, and the transmission chains 7 are connected with the output end of the driving motor and used for conveying steel pipes. The output shaft of the driving motor is connected with one end of the transmission chain 7, and can drive the transmission chain 7 to move on the shunt guide frame 6. The transmission chain 7 is provided with a plurality of grooves for placing steel pipes, and the grooves can limit the steel pipes to roll and have a positioning effect. The steel pipe that rolls from the second end of support body 31 drops to the drive chain 7 of reposition of redundant personnel guide frame 6 on, and in the steel pipe fell into the recess, driving motor can be connected with controller 5 electricity, and controller 5 control driving motor drive chain 7 rotates, drives the steel pipe and removes to next process.
In this embodiment, both ends of the fixing plate 33 are fixedly connected to the frame body 31, the number of the fixing plates 33 is five, four channels are formed between the five fixing plates 33, and the first channel, the second channel, the third channel and the fourth channel are sequentially marked from the first end to the second end of the frame body 31. The number of rotating plates 32 is the same as the number of channels, and the number of rotating plates 32 is also four, which can be referred to as a first rotating plate 32, a second rotating plate 32, a third rotating plate 32, and a fourth rotating plate 32. The rotating plate 32 on the sorting frame 3 is positioned above the channel and is hinged on any one of the fixing plates 33 adjacent to the rotating plate through a rotating shaft. The rotating plates 32 are connected to output ends of the driving devices, and the number of the driving devices may correspond to the number of the rotating plates 32 one by one, and is recorded as a first driving device, a second driving device, a third driving device, and a fourth driving device.
The working process of the invention is as follows:
in the non-operating state, each rotating plate 32 is in an upwardly-turned state, and the upper surface of the rotating plate 32 and the upper surface of the fixed plate 33 are the same inclined surface. The material rack 2 can be provided with codes, and different material racks 2 are provided with different codes. Four material racks 2 are arranged on the same tray trolley 1 and are marked as a first material rack 2, a second material rack 2, a third material rack 2 and a fourth material rack 2.
For example, when five kinds of steel pipes need to be divided, the controller 5 controls the tray trolley 1 to move to the position below the frame body 31 along the slide rail, and at the moment, the material frames 2 placed on the tray trolley 1 correspond to the channels one to one and are located right below the channels. The detection device detects the lengths of the plurality of steel pipes and feeds data back to the controller 5, and the controller 5 judges the type of the steel pipe according to data analysis and controls the corresponding driving device to drive the corresponding rotating plate 32 to rotate. For example, the controller 5 detects that the steel pipe belongs to the first category, controls the first driving device to drive the first rotating plate 32 to turn downwards, and automatically falls into the first material rack 2 through the first channel when the steel pipe rolls to the upper part of the first channel. The controller 5 detects that the steel pipe is of the second type, and controls the first driving device to drive the first rotating plate 32 to be turned upward, so that the first rotating plate 32 is returned to be positioned in the same slope as the fixed plate 33. Meanwhile, the controller 5 controls the second driving device to drive the second rotating plate 32 to turn downwards, and when the steel pipe passes through the first rotating plate 32 and rolls to the upper part of the second channel, the steel pipe falls into the second material rack 2 from the second channel. When the steel pipe belongs to the third category, the controller 5 controls the first driving means and the second driving means to drive the first rotating plate 32 and the second rotating plate 32 to be turned upwards, and the first rotating plate 32 and the second rotating plate 32 are reset and positioned in the same slope as the fixed plate 33. Meanwhile, the controller 5 controls the third driving device to drive the third rotating plate 32 to turn downwards, and when the steel pipe passes through the first rotating plate 32 and the second rotating plate 32 and rolls to the upper part of the third channel, the steel pipe falls into the third material rack 2 from the third channel. Similarly, when the steel pipe belongs to the fourth category, the steel pipe sequentially passes through the upper parts of the first rotating plate 32, the second rotating plate 32 and the third rotating plate 32, and falls into the fourth material rack 2 from the fourth channel. When the steel pipe belongs to the fifth category, the controller 5 controls the plurality of driving devices to drive the rotating plates 32 to keep an upward-turning state, the steel pipe rolls onto the transmission chain 7 on the diversion guide frame 6 from the fixed plate 33 and the rotating plates 32, falls into the groove, is transported to the next process, and is continuously processed. Because material frame 2 and tray dolly 1 detachably are connected, also be that material frame 2 places on tray dolly 1, when the steel pipe quantity in material frame 2 was enough many, the staff can change material frame 2 on the tray dolly 1.
To sum up, the embodiment of the invention provides a steel pipe sorting device, wherein the upper surfaces of the fixing plates are all positioned in the same inclined plane, so that the steel pipes can roll from the first end part to the second end part of the frame body by means of the gravity of the steel pipes. The rotating plate is rotatably connected to the fixed plate or the frame body and is connected with the driving device, and the driving device can control the rotating plate to turn over up and down, so that the rotating plate covers or opens the channel. When the rotating plate covers the channel, the steel pipe rolls from the surfaces of the rotating plate and the fixed plate and is output from the second end part of the frame body to the next process. When the rotating plate is turned downwards, the steel pipe rolls to the upper part of the channel and falls onto the tray trolley from the channel. This steel pipe sorter can be classified more than two kinds of steel pipes effectively through setting up the inclined plane and controlling the rotor plate upset, realizes automatic high-efficient classification, has saved the manpower, has improved classification efficiency, can accelerate the cycle of shipbuilding.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (9)
1. A steel pipe sorting device is characterized by comprising a sorting frame, a driving device and a tray trolley;
the sorting frame comprises a frame body, at least one rotating plate and at least two fixed plates fixedly connected to the frame body, wherein each fixed plate is sequentially arranged from a first end part to a second end part of the frame body in a downward inclined mode, the upper surface of each fixed plate is located in the same inclined plane, a channel for a steel pipe to pass through is reserved between the fixed plates, and the rotating plate is rotatably connected to the fixed plates or the frame body;
the driving device is arranged on the fixed plate or the frame body, is connected with the rotating plate and is used for driving the rotating plate to turn over up and down so that the rotating plate covers or opens the channel;
the tray trolley is arranged below the frame body and used for bearing the steel pipe falling from the channel.
2. The steel tube sorting device according to claim 1, wherein the bottom side of the pallet carriage is provided with at least three pulleys.
3. The steel tube sorting device according to claim 2, further comprising a slide rail, wherein each of the pulleys is slidably coupled to the slide rail.
4. The steel tube sorting device according to any one of claims 1 to 3, further comprising a material rack detachably connected to the tray cart.
5. The steel pipe sorting apparatus of claim 1, wherein the driving means is a cylinder.
6. The steel tube sorting device according to claim 1, further comprising a controller, wherein the controller is mounted on the frame body, and the controller is electrically connected with the driving device and the tray trolley respectively.
7. The steel pipe sorting device according to claim 6, further comprising a detecting device for detecting a length of the steel pipe, wherein the detecting device is electrically connected to the controller.
8. The steel pipe sorting apparatus of claim 1, further comprising a diversion guide provided at a second end of the sorting rack.
9. The steel tube sorting device according to claim 8, further comprising a driving motor and at least two transmission chains, wherein the driving motor is arranged on the diversion guide frame, and the transmission chains are connected with an output end of the driving motor and used for transporting the steel tubes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011143965.8A CN112354883A (en) | 2020-10-22 | 2020-10-22 | Steel pipe classification device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011143965.8A CN112354883A (en) | 2020-10-22 | 2020-10-22 | Steel pipe classification device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112354883A true CN112354883A (en) | 2021-02-12 |
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ID=74511743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011143965.8A Pending CN112354883A (en) | 2020-10-22 | 2020-10-22 | Steel pipe classification device |
Country Status (1)
| Country | Link |
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| CN (1) | CN112354883A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08119655A (en) * | 1994-10-17 | 1996-05-14 | Nippon Electric Glass Co Ltd | Sorter of glass tube |
| CN205701494U (en) * | 2016-04-27 | 2016-11-23 | 宁波正元铜合金有限公司 | A kind of can the equipment of automatic sorting round metal bar |
| CN109821759A (en) * | 2019-03-04 | 2019-05-31 | 江苏统联科技股份有限公司 | Device for measuring length of steel pipe |
| CN209935288U (en) * | 2019-02-27 | 2020-01-14 | 重庆康世德源科技实业有限公司 | Pipe fitting length integral type detection device |
| CN111153167A (en) * | 2020-03-02 | 2020-05-15 | 潍坊市三建集团有限公司 | Steel pipe sorting machine |
| CN210936030U (en) * | 2019-09-12 | 2020-07-07 | 天津市彬荣钢管有限公司 | Steel pipe sorting device |
-
2020
- 2020-10-22 CN CN202011143965.8A patent/CN112354883A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08119655A (en) * | 1994-10-17 | 1996-05-14 | Nippon Electric Glass Co Ltd | Sorter of glass tube |
| CN205701494U (en) * | 2016-04-27 | 2016-11-23 | 宁波正元铜合金有限公司 | A kind of can the equipment of automatic sorting round metal bar |
| CN209935288U (en) * | 2019-02-27 | 2020-01-14 | 重庆康世德源科技实业有限公司 | Pipe fitting length integral type detection device |
| CN109821759A (en) * | 2019-03-04 | 2019-05-31 | 江苏统联科技股份有限公司 | Device for measuring length of steel pipe |
| CN210936030U (en) * | 2019-09-12 | 2020-07-07 | 天津市彬荣钢管有限公司 | Steel pipe sorting device |
| CN111153167A (en) * | 2020-03-02 | 2020-05-15 | 潍坊市三建集团有限公司 | Steel pipe sorting machine |
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Application publication date: 20210212 |