CN115489959A - Conveying device suitable for folding door of railway gondola car - Google Patents
Conveying device suitable for folding door of railway gondola car Download PDFInfo
- Publication number
- CN115489959A CN115489959A CN202211215433.XA CN202211215433A CN115489959A CN 115489959 A CN115489959 A CN 115489959A CN 202211215433 A CN202211215433 A CN 202211215433A CN 115489959 A CN115489959 A CN 115489959A
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- Prior art keywords
- conveying
- conveyor
- trigger signal
- chain plate
- folding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G43/00—Control devices, e.g. for safety, warning or fault-correcting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G17/00—Conveyors having an endless traction element, e.g. a chain, transmitting movement to a continuous or substantially-continuous load-carrying surface or to a series of individual load-carriers; Endless-chain conveyors in which the chains form the load-carrying surface
- B65G17/06—Conveyors having an endless traction element, e.g. a chain, transmitting movement to a continuous or substantially-continuous load-carrying surface or to a series of individual load-carriers; Endless-chain conveyors in which the chains form the load-carrying surface having a load-carrying surface formed by a series of interconnected, e.g. longitudinal, links, plates, or platforms
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G17/00—Conveyors having an endless traction element, e.g. a chain, transmitting movement to a continuous or substantially-continuous load-carrying surface or to a series of individual load-carriers; Endless-chain conveyors in which the chains form the load-carrying surface
- B65G17/30—Details; Auxiliary devices
- B65G17/46—Means for holding or retaining the loads in fixed position on the load-carriers, e.g. magnetic
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2203/00—Indexing code relating to control or detection of the articles or the load carriers during conveying
- B65G2203/02—Control or detection
- B65G2203/0208—Control or detection relating to the transported articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2203/00—Indexing code relating to control or detection of the articles or the load carriers during conveying
- B65G2203/04—Detection means
- B65G2203/042—Sensors
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Conveyors (AREA)
Abstract
The application discloses conveyor suitable for railway gondola car door is folded paper. When the foldout is conveyed, the conveying device firstly places the foldout on a foldout supporting baffle surrounded by the foldout supporting baffle and the conveying belt chain plate. When a folding supporting baffle in a certain bearing isolation space is conveyed to be close to the proximity inductive switch in the process of driving and conveying the chain plates of the conveying belt, a first trigger signal is generated, and the first trigger signal stops driving the driving mechanism; when the hinge in the bearing isolation space is close to the proximity inductive switch and is released, a second trigger signal is generated, and the second trigger signal enables the driving mechanism to recover driving. Because the distance induction of the bearing isolation space is realized by depending on the proximity inductive switch, the on-off of the conveying belt chain plate is controlled, and the intermittent conveying is realized, so that the conveying of batch materials is met.
Description
Technical Field
The application relates to the technical field of door folding processing, in particular to a conveying device suitable for folding a door of a railway gondola car.
Background
In the related technology, a conveying device is not designed aiming at a vehicle door hinge, and other belt type drives by friction force and cannot transfer high power; the accurate transmission ratio cannot be ensured due to the sliding in the transmission; sliding loss: when the belt runs, the belt wheel and the driven wheel lose speed due to elastic sliding formed by the tension difference of the two sides of the belt wheel and the corresponding deformation difference. Will cause to skid when transshipping, make the motion of belt be in unstable state, efficiency sharply descends, and the wearing and tearing aggravation seriously influences the shortcoming such as life-span of belt. In addition, the moving speed of the roller belt conveyor is not controlled, the roller belt conveyor is easy to collide, the requirements of mass stable transportation cannot be met, meanwhile, the operation steps of a welding workstation need to enable the conveyor to operate intermittently, an ordinary conveying device is still difficult to realize under the condition that a control system is not added, and therefore special design is needed for conveying equipment applied to the field.
Disclosure of Invention
In view of this, the application provides a conveyor suitable for railway flatcar door folding, can realize intermittently transporting to satisfy the transportation of batch material.
The application provides a conveyor suitable for railway gondola car door is folded paper includes:
a conveying belt chain plate driven by the driving mechanism to generate conveying action;
the folding supporting baffles are convexly arranged on the conveying belt chain plate and linearly arranged along the conveying direction of the conveying belt chain plate, and the folding supporting baffles and the conveying belt chain plate enclose a bearing isolation space for accommodating folds;
and a proximity sensing switch located near an end of the conveyor link in the conveying direction, the proximity sensing switch being configured to generate a first trigger signal when the folding support flap in each of the load-bearing partitioned spaces is conveyed near the proximity sensing switch, the first trigger signal causing the driving mechanism to stop driving, or to generate a second trigger signal when the folding support flap near the proximity sensing switch is released, the second trigger signal causing the driving mechanism to resume driving.
Optionally, the conveying belt chain plate is provided with a groove, and the groove is used for inserting the folding supporting baffle.
Optionally, the folding shelf is used for accommodating the folding supporting baffle blanked by the bearing isolation space.
Optionally, the conveyor belt chain plate is provided with a chain feed mechanism for feeding a chain of the conveyor belt chain plate.
Optionally, the folding supporting baffle comprises a plurality of supporting baffle units arranged in parallel and at intervals, and the supporting baffle units are arranged on the conveying belt chain plate in an outward extending manner.
The conveying device suitable for the door hinge of the railway truck is provided, when the hinge is conveyed, the hinge is firstly placed on the hinge supporting baffle surrounded by the hinge supporting baffle and the conveying belt chain plate. When a folding supporting baffle in a certain bearing isolation space is conveyed to be close to the proximity inductive switch in the process of driving and conveying the chain plates of the conveying belt, a first trigger signal is generated, and the first trigger signal stops driving of the driving mechanism; when the hinge in the bearing isolation space is close to the proximity inductive switch and is released, a second trigger signal is generated, and the second trigger signal enables the driving mechanism to recover driving. Because the distance induction of the bearing isolation space is realized by depending on the proximity inductive switch, the on-off of the conveying belt chain plate is controlled, and the intermittent conveying is realized, so that the conveying of batch materials is met.
Drawings
The technical solution and other advantages of the present application will become apparent from the detailed description of the embodiments of the present application with reference to the accompanying drawings.
Fig. 1 is a schematic perspective view of a conveying device according to an embodiment of the present application.
Fig. 2 is a structural diagram of a perspective view of a conveying device according to an embodiment of the present disclosure.
Fig. 3 is an exploded view of a conveying apparatus according to an embodiment of the present application.
Wherein the elements in the figures are identified as follows:
1. a folding shelf; 2. a hinge support baffle; 3. folding; 4. a conveying belt chain plate; 5. a sprocket; 6. a chain tensioning mechanism; 7. a proximity sensing switch; 8. a conveyor belt control box; 9. a motor; 10. a conveyor belt chain.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application 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 application.
In the description of the present application, it is to be understood that the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically, electrically or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
The following disclosure provides many different embodiments or examples for implementing different features of the application. In order to simplify the disclosure of the present application, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.
Referring to fig. 1-3, the present application provides a conveyor apparatus for a railroad gondola door hinge 3, which can be adapted for a railroad gondola door hinge 3, but can also be used for other larger objects.
Although the subject matter of the present invention is described with reference to the word "door hinge 3" for a railway truck, these words have a definition of the transported object on their surface. However, these words are to be understood as a context of use, which is merely an exemplary illustration and does not constitute a substantial limitation of the present application to transporting materials. Any other form of object is also applicable to the technical solution of the present application. For convenience of description, the hinge 3 of the door of the railway truck will be described as an example, and the illustration of the form of other non-hinges 3 and the like is omitted to avoid brevity.
The above-mentioned conveyor includes:
a conveying belt chain plate 4 driven by a chain wheel 5 driving mechanism to generate conveying action;
a plurality of folding supporting baffles 2, which are arranged on the conveyor chain plate 4 in an outward extending manner, wherein the folding supporting baffles 2 and the conveyor chain plate 4 enclose a carrying isolation space for accommodating the folding 3;
and a proximity sensor switch 7 located near an end of the conveyor link plate 4 in the conveying direction, the proximity sensor switch 7 being configured to generate a first trigger signal when the fold supporting flapper 2 in each of the carrying compartments is conveyed close to the proximity sensor switch 7, the first trigger signal causing the driving mechanism to stop driving, or to generate a second trigger signal when the approach sensor switch 7 of the fold 3 is released, the second trigger signal causing the driving mechanism to resume driving.
As used herein and as is readily appreciated, conveyor belt link 4 refers to a chain and link plate equipped chain transfer body.
As used herein and as will be readily appreciated, the drive mechanism includes the motor 9, as well as the motor 9 power transmission element or the like.
As used herein, the "when the above-mentioned hinge 3 is released near the proximity sensitive switch 7" occurs when the operator discharges the hinge 3 in a certain load-bearing isolated space in which the proximity sensitive switch 7 generates the first trigger signal, and the hinge 3 which can be sensed by the proximity sensitive switch 7 does not exist in the load-bearing isolated space.
It is contemplated by those skilled in the art that the formation of the sensing signal with the proximity sensing switch 7 is accomplished under a complimentary sensing coupling. As a reference realization, the inductive coupling is integrated with the proximity inductive switch 7, i.e. the inductive coupling is assembled with the proximity inductive switch 7. In this case, the proximity switch 7 and the inductive coupling member correspond to the fitting relationship between the probe signal transmitter and the probe signal receiver. This mating relationship may be a sensor that is widely used to sense door opening and closing.
As a reference implementation, the inductive coupling is provided separately from the proximity inductive switch 7. As an exemplary implementation of the layout position of the inductive coupling, a folding support flap 2 is arranged in a front position in the load-bearing insulation space. As another exemplary implementation of the layout position of the inductive coupling, it is arranged at a non-edge position in the load-bearing isolation space.
As used herein "is protruding on said conveyor link 4 and is linearly arranged in the conveying direction of the conveyor link 4", the expression implicitly discloses that a plurality of load-bearing insulation spaces are arranged one behind the other in the conveying direction of the conveyor link 4. This ensures that the load bearing isolated spaces are sensed by the proximity sensing switches 7 on a batch-by-batch basis. Here, "batch" may be sensed one by the proximity sensing switch 7, i.e. each time a certain load-bearing isolated space located at the most forward position is sensed. Of course, several proximity switches 7 may be sensed simultaneously, that is, some (for example, two or three) load-bearing isolation spaces located at the most front position at a time are sensed, and in actual operation, the sensing distance threshold of the proximity switches 7 and the accommodating length of the load-bearing isolation spaces (i.e., the length of the load-bearing isolation spaces) may be set to achieve "one by one" or "one by one".
As an exemplary implementation of the "folding support flapper 2 protruding from the conveyor link plate 4", the conveyor link plate 4 is provided with a groove for inserting the folding support flapper 2.
Therefore, the folio supporting baffle 2 can be flexibly inserted into the grooves at different front and rear positions as required by inserting the grooves, so as to control the accommodating length of the bearing isolation space.
As an alternative to the insertion of the groove, a bolt or a snap connection may be used.
As an exemplary implementation of the specific configuration of the folding supporting flap 2, the folding supporting flap 2 comprises a plurality of parallel and spaced supporting bar units, which are arranged extending outward on the conveyor chain plate 4.
Therefore, the folding supporting baffle 2 is ensured to be detachable or changeable through the arrangement of intervals among the supporting baffle units.
In order to facilitate the blanking of the load bearing isolation space sensed by the proximity sensing switch 7 by an operator, the folding shelf device also comprises a folding shelf 1 for accommodating the folding supporting baffle 2 blanked by the load bearing isolation space.
Thus, the cut-off folded sheets 3 are stored on the folding shelf 1 to facilitate welding without affecting the conveyance of the folded sheets 3 carrying the separation space at the rear position.
It is conceivable that the first trigger signal or the second trigger signal may be received by the belt control box 8, so that the belt control box 8 generates a command for controlling the start and stop of the driving mechanism.
Of course, the belt control box 8 may also be omitted, in case the motor 9 of the drive mechanism employs a servo drive.
In order to ensure the operation stability of the conveyor link plate 4, the conveyor link plate 4 is provided with a chain feed mechanism 6 for feeding the chain of the conveyor link plate 4.
Here, the chain tension mechanism 6 may be a chain Zhang Jinqi which is widely used in the field of a conveyor chain.
The operation of the present application, folder 3 transport, will now be described with respect to a common application scenario. It should be noted that this common embodiment is not to be taken as an identification basis for understanding the essential features of the technical problem to be solved as claimed in the present application, which is merely exemplary.
When an operator starts the equipment, the motor 9 drives the conveyer belt chain 10 to operate and pushes the foldout 3 to advance by means of the baffle support on the chain plate, the baffle of the foldout 3 at the forefront is close to the proximity sensing switch 7 slowly and the distance reaches the trigger value set by the system, the conveyer belt control box 8 sends a stop signal to the motor 9 to stop the motor 9, at the moment, the operator can detach the foldout 3 at the next batch and temporarily place the foldout 3 on the foldout object placing frame 1, the baffle of one group of foldout 3 on the conveyer belt is pulled down after the foldout 3 is completely welded, the equipment is restarted after the proximity switch senses, the next group of foldout 3 is conveyed to the side of the operator, and then the action is cyclically repeated and so on.
When the device has the condition that the conveying is unstable due to the fact that a chain plate of the chain is loosened, the chain tensioning mechanism 6 can be manually adjusted to enable the conveying belt to be in a tightened state so as to guarantee stable operation in the conveying process, and if the device fails, the joint control system of the welding workstation automatically closes equipment in operation immediately.
It should be reminded that the conveying device of the application has the following advantages:
the structure is compact, and the external space is saved; the expansibility is good, and the length of the conveying device of the foldout 3 can be controlled at will according to the power of the motor 9; the conveying mechanism has the advantages of fewer mechanical parts, low failure rate, lower later maintenance cost and more economic advantages compared with other conveying mechanisms; the equipment has large carrying capacity, can keep the folding supporting baffle 2 with wider distance by removing part of the folding supporting baffle 2 of the folding 3, can also convey other objects with larger volume, and causes that the folding supporting baffle 2 can flexibly change the size of the conveyed object and ensure the conveying stability thereof, thereby realizing multifunctional conveying capacity; the appearance is concise and elegant, and both the working capacity and the aesthetic feeling of mechanical design products are taken into consideration; the high power cannot be transmitted by friction transmission; the sliding in the transmission can not ensure the accurate transmission ratio; sliding loss: when the belt runs, the belt wheel and the driven wheel lose speed due to elastic sliding formed by the tension difference of the two sides of the belt wheel and the corresponding deformation difference. The belt is slipped when overloaded, so that the movement of the belt is in an unstable state, the efficiency is rapidly reduced, the abrasion is aggravated, the service life of the belt is seriously influenced, and the like; the moving speed is not controlled, and collision is easy to occur; the long-time mass conveying of the conveyer belt chain plate 4 is ensured, and the stability and the safety of the conveyer belt chain plate 4 are ensured by the grooves; on the premise of saving the cost, the working efficiency is improved.
The above description is only for the preferred embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application.
Claims (5)
1. A conveyor apparatus for a door hinge of a railway truck, comprising:
a conveying belt chain plate driven by the driving mechanism to generate conveying action;
the folding supporting baffles are convexly arranged on the conveying belt chain plate and are linearly arranged along the conveying direction of the conveying belt chain plate, and the folding supporting baffles and the conveying belt chain plate enclose a bearing isolation space for accommodating folds;
and a proximity sensing switch located near an end of the conveyor link in the conveying direction, the proximity sensing switch being configured to generate a first trigger signal when the fold in each of the load-bearing compartments is conveyed close to the proximity sensing switch, the first trigger signal causing the driving mechanism to stop driving, or to generate a second trigger signal when the fold in the load-bearing compartment is released close to the proximity sensing switch, the second trigger signal causing the driving mechanism to resume driving.
2. The conveying apparatus as claimed in claim 1, wherein the conveyor belt link plates are formed with recesses for inserting the folding support flapper.
3. The conveyor apparatus of claim 1 further comprising a fold shelf for receiving a fold support fence blanked by said load bearing insulation space.
4. The conveyor apparatus as claimed in claim 1, wherein the conveyor link plates are provided with chain tensioning mechanisms for tensioning the chains of the conveyor link plates.
5. The conveying apparatus as claimed in claim 1, wherein the folding support flapper includes a plurality of support bar elements arranged in parallel and spaced apart, the support bar elements being arranged to extend outwardly on the conveyor flight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211215433.XA CN115489959A (en) | 2022-09-30 | 2022-09-30 | Conveying device suitable for folding door of railway gondola car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211215433.XA CN115489959A (en) | 2022-09-30 | 2022-09-30 | Conveying device suitable for folding door of railway gondola car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115489959A true CN115489959A (en) | 2022-12-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211215433.XA Pending CN115489959A (en) | 2022-09-30 | 2022-09-30 | Conveying device suitable for folding door of railway gondola car |
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| CN (1) | CN115489959A (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0034335A1 (en) * | 1980-02-14 | 1981-08-26 | Torvale Engineering Limited | A new or improved shuttle conveyor |
| JPH09309609A (en) * | 1996-05-20 | 1997-12-02 | Shibuya Kogyo Co Ltd | Workpiece transferring device having phase adjusting mechanism |
| DE202005008996U1 (en) * | 2005-03-04 | 2005-09-15 | Tiani Automationstechnik Gmbh | Transporter for IC engine connecting rods comprises guide rails which support their big ends and endless chain mounted below them with pairs of lugs mounted on each link which contact small ends and move connecting rods along |
| CN101563279A (en) * | 2006-12-14 | 2009-10-21 | 莱特拉姆有限责任公司 | Systems and methods for providing an improved timing conveyor |
| CN102834337A (en) * | 2010-03-09 | 2012-12-19 | I.M.A.工业机械自动装置股份公司 | Transporting apparatus |
| CN204508121U (en) * | 2015-01-19 | 2015-07-29 | 广东顺德博硕涂装技术有限公司 | Folding drying alley |
| CN210213964U (en) * | 2019-06-19 | 2020-03-31 | 迈巴赫机器人（昆山）有限公司 | Carton conveying line |
| CN212244940U (en) * | 2020-04-10 | 2020-12-29 | 海丰县星际动漫科技发展有限公司 | Packing carton conveyor |
| CN213706755U (en) * | 2020-11-23 | 2021-07-16 | 东莞市劲腾精彩空气处理技术有限公司 | Tank chain transmission mechanism |
| KR20210147617A (en) * | 2020-05-29 | 2021-12-07 | 두솔메카트로닉스 주식회사 | Automatic feeder of roasted laver |
| CN215401071U (en) * | 2021-07-27 | 2022-01-04 | 广州贝晓德智能科技有限公司 | Product conveying device |
| WO2022015219A1 (en) * | 2020-07-16 | 2022-01-20 | Norden Machinery Ab | Device for feeding carton stacks |
-
2022
- 2022-09-30 CN CN202211215433.XA patent/CN115489959A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0034335A1 (en) * | 1980-02-14 | 1981-08-26 | Torvale Engineering Limited | A new or improved shuttle conveyor |
| JPH09309609A (en) * | 1996-05-20 | 1997-12-02 | Shibuya Kogyo Co Ltd | Workpiece transferring device having phase adjusting mechanism |
| DE202005008996U1 (en) * | 2005-03-04 | 2005-09-15 | Tiani Automationstechnik Gmbh | Transporter for IC engine connecting rods comprises guide rails which support their big ends and endless chain mounted below them with pairs of lugs mounted on each link which contact small ends and move connecting rods along |
| CN101563279A (en) * | 2006-12-14 | 2009-10-21 | 莱特拉姆有限责任公司 | Systems and methods for providing an improved timing conveyor |
| CN102834337A (en) * | 2010-03-09 | 2012-12-19 | I.M.A.工业机械自动装置股份公司 | Transporting apparatus |
| CN204508121U (en) * | 2015-01-19 | 2015-07-29 | 广东顺德博硕涂装技术有限公司 | Folding drying alley |
| CN210213964U (en) * | 2019-06-19 | 2020-03-31 | 迈巴赫机器人（昆山）有限公司 | Carton conveying line |
| CN212244940U (en) * | 2020-04-10 | 2020-12-29 | 海丰县星际动漫科技发展有限公司 | Packing carton conveyor |
| KR20210147617A (en) * | 2020-05-29 | 2021-12-07 | 두솔메카트로닉스 주식회사 | Automatic feeder of roasted laver |
| WO2022015219A1 (en) * | 2020-07-16 | 2022-01-20 | Norden Machinery Ab | Device for feeding carton stacks |
| CN213706755U (en) * | 2020-11-23 | 2021-07-16 | 东莞市劲腾精彩空气处理技术有限公司 | Tank chain transmission mechanism |
| CN215401071U (en) * | 2021-07-27 | 2022-01-04 | 广州贝晓德智能科技有限公司 | Product conveying device |
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