CN110587356A - Conveying device for machining of mechanical parts and operation method - Google Patents
Conveying device for machining of mechanical parts and operation method Download PDFInfo
- Publication number
- CN110587356A CN110587356A CN201910871371.XA CN201910871371A CN110587356A CN 110587356 A CN110587356 A CN 110587356A CN 201910871371 A CN201910871371 A CN 201910871371A CN 110587356 A CN110587356 A CN 110587356A
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- transmission
- conveying
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- belt
- sensor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q7/00—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q7/00—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting
- B23Q7/10—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting by means of magazines
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Conveyors (AREA)
Abstract
The invention discloses a conveying device and an operation method for machining mechanical parts, wherein the conveying device comprises a feeding device, a first conveying belt positioned at the lower end of a discharge port of the feeding device, a detection device arranged on the tail end of the first conveying belt, a buffer mechanism positioned below the tail end of the first conveying belt and a second conveying belt, the detection device is used for detecting unqualified products of the mechanical parts during machining and cleaning the unqualified products in time, and the second conveying belt is used for conveying the qualified products to perform the next machining process. The invention is used among all machining processes of mechanical parts, can detect the mechanical parts machined in the previous step, and conveys the mechanical parts to the next machining process after detection.
Description
Technical Field
The invention relates to the technical field of machine manufacturing and use, in particular to a transmission device and an operation method for machining mechanical parts.
Background
The nut is a fastener with a driving system and internal threads, is designed to be combined with an external thread fastener to fix and lock fittings, has different designs and classifications on opposite sides or shapes according to the use condition and functions, and is matched with a screw, a bolt and a bolt to be used for connecting and fastening parts.
In traditional nut course of working, will punch a hole with the panel that nut width and panel thickness are the same and draw materials, then punch a hole once more on the material of punching out and tap the screw thread, form the nut, and panel can have the condition that thickness differs unavoidably, and the nut of making like this can cause the inconsistent condition of width.
Disclosure of Invention
Therefore, in order to solve the above-mentioned disadvantages, the present invention provides a conveying device and an operating method for mechanical parts during a machining process, wherein the conveying device can not only convey the machined parts to facilitate the next machining process, but also detect the thickness of the parts during the conveying process to screen out the parts with too large thickness.
The invention is realized in such a way, a transmission device used in the machining of mechanical parts is constructed, and the transmission device comprises a feeding device, a first transmission belt positioned at the lower end of a discharge port of the feeding device, a detection device arranged on the tail end of the first transmission belt, a buffer mechanism positioned below the tail end of the first transmission belt and a second transmission belt, wherein the feeding device comprises a feeding hopper, a transmission block, a support frame, a support plate, a spring, a vibration motor and a bolt connection; the left end lower part of the first transmission belt is provided with a driving motor, a speed reducer and belt transmission, the speed reducer is fixedly arranged on a connecting frame at the left lower end of the first transmission belt through a support, the first transmission belt is fixed on the ground through a plurality of supporting columns and supporting foot plates, the connecting frame is arranged between adjacent supporting columns, the detection device is two same infrared sensors, the sensor A is arranged on a support at the right end of the first transmission belt, the sensor B is arranged on another support which is symmetrical relative to the transmission belt, the side of the sensor B is also provided with an alarm device, the buffer mechanism is composed of a buffer plate, a side baffle, an air cylinder, a supporting shoe and a rotating shaft, the left end lower part of the buffer plate is arranged on a telescopic rod of the air cylinder, and the air cylinder is arranged on the supporting column at the rightmost end of the first transmission belt, the right-hand member below of buffer board is through pivot and the supporting shoe swing joint who supports the pivot in the upper left side of second transmission band, the side shield install the upper end both sides of buffer board.
Furthermore, a chute for supporting the transmission block is formed in the supporting plate, the transmission block is kept in an inclined state after the transmission block is installed on the chute, an arc groove is formed in the upper end of the transmission block along the inclined surface, and the bolt is connected with the supporting plate in a fixed mode through two sides of the arc groove.
Furthermore, the sliding grooves used for installing the sliding side baffles are formed in the upper end faces of the front support and the rear support of the first conveying belt, the sliding grooves used for installing the height limiting devices are formed in the front end faces of the front support and the rear support of the first conveying belt, the front side baffle and the rear side baffle are installed on the front side and the rear side of the first conveying belt below the tail end of the conveying block, the fixed side baffles are installed in the sliding grooves and are fixedly connected through limiting blocks inside the sliding grooves, the height limiting devices are arranged at the rear ends of the fixed side baffles, and the sliding side baffles are installed at the rear ends of the height limiting devices.
Furthermore, the height limiting device comprises two mounting columns, a fixing block and a slender shaft, wherein the two mounting columns are respectively mounted at the rear end of the fixed side baffle and fixed inside a sliding groove of the front end face of the first transmission belt through bolts, grooves are formed in the front end faces of the two mounting columns, a plurality of strip-shaped holes for penetrating through the slender shaft are further formed in the upper left end in the grooves of the mounting columns, the fixing block is connected with one end of the slender shaft, and threads are formed in the other end of the slender shaft. The slender shaft penetrates through the first transmission belt through the fixing block and the nut to be fixedly connected in the grooves of the two mounting columns.
Furthermore, the side baffle consists of a supporting layer and a protective layer, and the supporting layer and the protective layer are connected together through a T-shaped groove.
A transmission operation method for mechanical part machining is implemented as follows; when the device works, mechanical parts processed in the previous procedure are placed in the feeding hopper, then the vibration motor and the driving motor are started, the first conveying belt and the second conveying belt start to work, the parts fall onto the first conveying belt below through the feeding hopper and the conveying blocks at a constant speed under the vibration effect of the vibration motor and are slowly conveyed to the height limiting device, if two overlapped parts are on the first conveying belt, the overlapped parts can be scraped off by the slender shaft in the height limiting device, and the subsequent detection device is prevented from causing false detection; when spare part transports to detection device, because sensor A and sensor B are the symmetry installation, if the spare part is when the transmission because the spare part is too high and the infrared ray that two sensors of separation sent out, the sensor can be through the first transmission area bring out of external circuit control stop motion to start alarm device reminds the staff in time to handle, if the infrared ray of spare part transmission time does not have the separation sensor, then can be through the buffer board of terminal below, fall to the second transmission area on, transmit to next manufacturing procedure.
The invention has the following beneficial effects:
the conveying device is simple in structure and reasonable in design, is used for conveying parts to the next working procedure after one working procedure is finished, and can also be used for detection.
According to the invention, the vibrating motor is reasonably designed to ensure that mechanical parts cannot be clamped at the bottom of the hopper when the hopper falls into the conveying block, and meanwhile, a plurality of parts can fall onto a lower conveying belt at a constant speed during conveying.
Through reasonable design limit for height device can guarantee that spare part will two overlapping spare parts break away before detecting, prevent to cause the false retrieval.
The height of the part can be detected through a reasonably designed detection device.
Support layer and protective layer can guarantee through reasonable design side shield that the side shield neither harms the spare part surface, still have certain stability, prevent that the spare part from being kept off by limit for height device after knocking side shield because of rolling.
The side baffle can be conveniently installed by reasonably designing the connection relation between the supporting layer on the side baffle and the protective layer.
The height between the slender shaft and the transmission band can be adjusted through a plurality of stripe holes in the reasonable design height limiting device, so that the device is convenient to adapt to various parts.
The height limiting device and the sliding side baffle can be conveniently moved left and right through reasonably designing the sliding groove.
The inclination degree of the buffer plate can be adjusted by reasonably designing the air cylinder at the lower end of the buffer plate, and the buffer plate can be used for various parts and occasions.
In addition, the operation method of the conveying device used for machining the mechanical parts comprises the following steps that during work, the mechanical parts machined in the previous procedure are placed in the feeding hopper, then the vibration motor and the driving motor are started, the first conveying belt and the second conveying belt start to work, the parts fall onto the first conveying belt below through the feeding hopper and the conveying block at a constant speed under the vibration effect of the vibration motor and are slowly conveyed to the height limiting device, if two overlapped parts are arranged on the first conveying belt, the slender shaft in the height limiting device can scrape the overlapped parts, and therefore false detection caused by a subsequent detection device is prevented; when spare part transports to detection device, because sensor A and sensor B are the symmetry installation, if the spare part is when the transmission because the spare part is too high and the infrared ray that two sensors of separation sent out, the sensor can be through the first transmission area bring out of external circuit control stop motion to start alarm device reminds the staff in time to handle, if the infrared ray of spare part transmission time does not have the separation sensor, then can be through the buffer board of terminal below, fall to the second transmission area on, transmit to next manufacturing procedure.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the invention;
FIG. 2 is a top plan view of the invention of FIG. 1;
FIG. 3 is a left side view of the first conveyor belt of FIG. 1 of the invention;
FIG. 4 is a right side view of the feed device of FIG. 1 of the present invention;
FIG. 5 is an enlarged view of a portion of the invention at A in FIG. 1;
FIG. 6 is an enlarged view of a portion of the invention at B in FIG. 1;
FIG. 7 is an enlarged partial cross-sectional view taken at C of FIG. 1 of the present invention;
FIG. 8 is a schematic cross-sectional view of the side dam of FIG. 1 of the present invention.
In the figure: 1. a feed hopper; 2. A support plate; 3. a support frame; 4. a support leg plate; 5. a support pillar; 6. a support; 7. a drive motor; 8. Connecting by bolts; 9. a cylinder; 10. a second conveyor belt; 11. a support block; 12. a buffer plate; 13. a first conveyor belt; 14. an alarm device; 15. a sensor B; 16. a sliding groove; 17. sliding side guards; 18. mounting a column; 19. fixing a side baffle; 20. belt transmission; 21. a connecting frame; 22. a sensor A; 23. a transmission block; 24. a speed reducer; 25. an elongated shaft; 26. a spring; 27. a vibration motor; 28. a fixed block; 29. a rotating shaft.
Detailed Description
The present invention will be described in detail with reference to fig. 1 to 8, and the technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a transmission device for machining mechanical parts by improvement, which can be implemented as follows: a conveying device used in machining of mechanical parts comprises a feeding device, a first conveying belt 13 located at the lower end of a discharge port of the feeding device, a detection device installed at the tail end of the first conveying belt 13, and a buffer mechanism and a second conveying belt 10 located below the tail end of the first conveying belt 13, wherein the feeding device comprises a feeding hopper 1, a conveying block 23, a supporting frame 3, a supporting plate 2, a spring 26, a vibration motor 27 and a bolt connection 8, the feeding hopper 1 is fixedly connected above the left end of the conveying block 23, the lower end of the supporting frame 3 is fixed on the ground, the upper end of the supporting frame is fixedly connected with the supporting plate 2 through the spring 26, the supporting plate 2 is connected with the conveying block 23 through the bolt connection 8, and the vibration motor 27 is fixedly connected to the bottom of the middle end of the conveying; a driving motor 7, a speed reducer 24 and a belt transmission 20 are installed below the left end of the first transmission belt 13, the speed reducer 24 is fixedly installed on a connecting frame 21 at the left lower end of the first transmission belt 13 through a support 6, the first transmission belt 13 is fixed on the ground through a plurality of supporting columns 5 and supporting foot plates 4, the connecting frame 21 is installed between the adjacent supporting columns 5, the detection device is two identical infrared sensors, a sensor A22 is installed on a support at the right end of the first transmission belt 13, a sensor B15 is installed on another support of the sensor A22 which is symmetrical relative to the transmission belt, an alarm device 14 is also installed beside the sensor B15, the buffer mechanism is composed of a buffer plate 12, a side baffle plate 19, a cylinder 9, a supporting block 11 and a rotating shaft 29, the lower part of the left end of the buffer plate 12 is installed on an expansion link of the cylinder 9, the cylinder 9 is installed on the supporting column 5 at the rightmost end of the first transmission belt 13, the lower part of the right end of the buffer plate 12 is movably connected to the upper left of the second conveyor belt 10 through a rotating shaft 29 and a supporting block 11 supporting the rotating shaft 29, and the side baffles 19 are arranged on two sides of the upper end of the buffer plate 12.
In this embodiment, the supporting plate 2 is provided with a chute for supporting the transmission block 23, the transmission block 23 is kept in an inclined state after the transmission block 23 is installed on the chute, the upper end of the transmission block 23 is provided with an arc groove along the inclined surface, and the bolt connection 8 is fixedly connected with the supporting plate 2 through two sides of the arc groove.
In this embodiment, the front and rear supports of the first conveyor belt 13 are provided with sliding grooves for mounting sliding side guards 17, the front supports of the front and rear supports of the first conveyor belt 13 are provided with sliding grooves 16 for mounting height limiting devices, the front and rear sides of the first conveyor belt 13 below the end of the conveying block 23 are provided with fixed side guards 19, the fixed side guards 19 are mounted in the sliding grooves and are fixedly connected through limiting blocks inside the sliding grooves, the rear end of each fixed side guard 19 is provided with a height limiting device, and the rear end of each height limiting device is provided with a sliding side guard 17.
In this embodiment, the height limiting device includes two erection columns 18, fixed block 28 and slender axle 25, two erection columns 18 install respectively in fixed side shield 19 rear end, fix through bolted connection 8 inside the sliding tray 16 of terminal surface before the first conveyer belt 13, the recess has been seted up to the preceding terminal surface of two erection columns 18, a plurality of bar holes that are used for passing slender axle 25 are still seted up to the upper left end in the erection column recess, fixed block 28 is connected to slender axle 25 one end, and the other end is seted up threadedly. The elongated shaft 25 is fixedly connected in the grooves of the two mounting posts 18 through the first transmission belt 13 by a fixing block 28 and a nut.
In this embodiment, the side baffle is composed of a support layer and a protective layer, and the support layer and the protective layer are connected together through a T-shaped groove.
Before the operation, the height between the elongated shaft 25 and the first conveyor belt 13 in the height limiting device, the distance between the height limiting device and the fixed side fence 19, and the inclination degree of the buffer plate 12 are previously adjusted.
During operation, the mechanical parts processed in the previous procedure are placed in the feeding hopper 1, then the vibration motor 27 and the driving motor 7 are started, the first transmission belt 13 and the second transmission belt 13 start to work, the parts fall onto the first transmission belt 13 below through the feeding hopper 1 and the transmission block 23 at a constant speed under the vibration effect of the vibration motor 27 and are slowly transmitted to the height limiting device, if two overlapped parts are on the first transmission belt 13, the parts overlapped on the parts can be scraped off by the slender shaft 25 in the height limiting device, and the false detection caused by the following detection device is prevented.
When the spare part transports detection device, because sensor A22 and sensor B15 are the symmetry installation, if the spare part is when the transmission because the spare part is too high and the infrared ray that two sensors of separation sent out, the sensor can be through the stop motion of external circuit control first conveyer belt 13 to start alarm device 14, remind the staff in time to handle, if the infrared ray of spare part transmission time do not have separation sensor, then can pass through buffer board 12 of terminal below, fall on second conveyer belt 10, transmit to next manufacturing procedure.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. A transmission device used in the machining of mechanical parts is characterized in that; comprises a feeding device, a first conveying belt (13) positioned at the lower end of a discharge port of the feeding device, a detection device arranged at the tail end of the first conveying belt (13), a buffer mechanism positioned below the tail end of the first conveying belt (13) and a second conveying belt (10), the feeding device comprises a feeding hopper (1), a transmission block (23), a support frame (3), a support plate (2), a spring (26), a vibration motor (27) and a bolt connection (8), the feeding hopper (1) is fixedly connected above the left end of the transmission block (23), the lower end of the supporting frame (3) is fixed on the ground, the upper end is fixedly connected with the supporting plate (2) through a spring (26), the supporting plate (2) is connected with the transmission block (23) through a bolt (8), the vibration motor (27) is fixedly connected to the bottom of the middle end of the transmission block (23); the left end below of first conveyer belt (13) is installed driving motor (7), reduction gear (24) and belt drive (20), reduction gear (24) pass through support (6) fixed mounting be in on link (21) of first conveyer belt (13) left lower extreme, first conveyer belt (13) are fixed on the ground by a plurality of support columns (5) and support sole (4), link (21) are installed to between adjacent support column (5), detection device is two the same infrared ray sensor, sensor A (22) are installed on the right-hand member support of first conveyer belt (13), sensor B (15) are installed on another support of sensor A (22) for the conveyer belt symmetry, alarm device (14) are still installed to sensor B's (15) next door, buffer gear is by buffer board (12), side shield (19), Cylinder (9), supporting shoe (11) and pivot (29) are constituteed, install the left end below of buffer board (12) on the telescopic link of cylinder (9), install cylinder (9) above support column (5) of the rightmost end of first conveyer belt (13), the right-hand member below of buffer board (12) is through pivot (29) and supporting shoe (11) swing joint of support pivot (29) in the upper left side of second conveyer belt (10), side shield (19) are installed the upper end both sides of buffer board (12).
2. The conveying device for machining the mechanical part according to claim 1, wherein; offer the chute that is used for supporting transmission piece (23) on backup pad (2), make transmission piece (23) keep the tilt state after chute installation transmission piece (23), the arc groove has been seted up along the inclined plane in the upper end of transmission piece (23), bolted connection (8) pass through arc groove both sides with backup pad (2) keep fixed connection.
3. The conveying device for machining the mechanical part according to claim 1, wherein; the sliding groove that is used for installing slip side shield (17) is seted up to the fore-and-aft support up end of first conveyer belt (13), sliding groove (16) that are used for installing limit for height device are seted up to the fore-end face of the fore-and-aft support of first conveyer belt (13), fixed side shield (19) are installed to both sides around on first conveyer belt (13) of transmission piece (23) terminal below, fixed side shield (19) install in the sliding groove, keep fixed connection through the stopper of sliding groove inside, the rear end of fixed side shield (19) has the limit for height device, slip side shield (17) are installed to limit for height device rear end.
4. A transfer device for use in machining of mechanical parts according to claim 3, wherein; the height limiting device comprises two mounting columns (18), a fixing block (28) and a slender shaft (25), the two mounting columns (18) are respectively mounted at the rear ends of the fixed side baffles (19) and fixed inside a sliding groove (16) on the front end face of the first conveying belt (13) through bolts (8), grooves are formed in the front end faces of the two mounting columns (18), a plurality of strip-shaped holes used for penetrating through the slender shaft (25) are further formed in the upper left ends of the mounting column grooves, one end of the slender shaft (25) is connected with the fixing block (28), and threads are formed in the other end of the slender shaft (25);
the slender shaft (25) is fixedly connected in the grooves of the two mounting columns (18) through a fixing block (28) and a nut which penetrate through the first transmission belt (13).
5. A transfer device for use in machining of mechanical parts according to claim 3, wherein; the side baffle consists of a supporting layer and a protective layer, and the supporting layer and the protective layer are connected together through a T-shaped groove.
6. A transmission operation method used in mechanical part machining is characterized in that; the method is implemented as follows; when the automatic height limiting device works, mechanical parts processed in the previous procedure are placed in a feeding hopper (1), then a vibration motor (27) and a driving motor (7) are started, a first conveying belt (13) and a second conveying belt (13) start to work, the parts fall onto the lower first conveying belt (13) through the feeding hopper (1) and a conveying block (23) at a constant speed under the vibration effect of the vibration motor (27), and are slowly conveyed to a height limiting device, if two overlapped parts are on the first conveying belt (13), a slender shaft (25) in the height limiting device can scrape the overlapped parts, and the subsequent detection device is prevented from causing false detection; when spare part transports to detection device, because sensor A (22) and sensor B (15) are the symmetry installation, if the spare part is when the transmission because the spare part is too high and the infrared ray that two sensors of separation sent out, the sensor can be through external circuit control first transmission band (13) stop motion, and start alarm device (14), remind the staff in time to handle, if the spare part does not have the infrared ray of separation sensor when transmitting, then can fall on second transmission band (10) through buffer board (12) of terminal below, transmit to next manufacturing procedure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910871371.XA CN110587356B (en) | 2019-09-16 | 2019-09-16 | Conveying device for machining of mechanical parts and operation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910871371.XA CN110587356B (en) | 2019-09-16 | 2019-09-16 | Conveying device for machining of mechanical parts and operation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110587356A true CN110587356A (en) | 2019-12-20 |
| CN110587356B CN110587356B (en) | 2021-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910871371.XA Active CN110587356B (en) | 2019-09-16 | 2019-09-16 | Conveying device for machining of mechanical parts and operation method |
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| Country | Link |
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| CN (1) | CN110587356B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001054835A (en) * | 1999-08-18 | 2001-02-27 | Nippei Toyama Corp | Pallet stocker |
| CN202499519U (en) * | 2012-03-21 | 2012-10-24 | 浙江森王食品有限公司 | Self-help flattened transmission feeding device |
| CN205650474U (en) * | 2016-05-31 | 2016-10-19 | 陈昊书 | System for detect product superelevation in batches |
| CN207434614U (en) * | 2017-11-03 | 2018-06-01 | 广州科里时机械工程有限公司 | Container bulk material loading system |
| CN208888912U (en) * | 2018-11-14 | 2019-05-21 | 西南交通大学 | Coin tiling transmission mechanism |
-
2019
- 2019-09-16 CN CN201910871371.XA patent/CN110587356B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001054835A (en) * | 1999-08-18 | 2001-02-27 | Nippei Toyama Corp | Pallet stocker |
| CN202499519U (en) * | 2012-03-21 | 2012-10-24 | 浙江森王食品有限公司 | Self-help flattened transmission feeding device |
| CN205650474U (en) * | 2016-05-31 | 2016-10-19 | 陈昊书 | System for detect product superelevation in batches |
| CN207434614U (en) * | 2017-11-03 | 2018-06-01 | 广州科里时机械工程有限公司 | Container bulk material loading system |
| CN208888912U (en) * | 2018-11-14 | 2019-05-21 | 西南交通大学 | Coin tiling transmission mechanism |
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| CN110587356B (en) | 2021-04-09 |
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