CN112850106A - Material conveying mechanism - Google Patents

Material conveying mechanism Download PDF

Info

Publication number
CN112850106A
CN112850106A CN202110012559.6A CN202110012559A CN112850106A CN 112850106 A CN112850106 A CN 112850106A CN 202110012559 A CN202110012559 A CN 202110012559A CN 112850106 A CN112850106 A CN 112850106A
Authority
CN
China
Prior art keywords
opening
door
closing
rotating shaft
material carrier
Prior art date
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.)
Granted
Application number
CN202110012559.6A
Other languages
Chinese (zh)
Other versions
CN112850106B (en
Inventor
祝利群
柏磊
邵婕文
李新军
靳占勇
何汉涛
许小明
程毅梅
方忻
王燕伶
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Institute of Atomic of Energy
Original Assignee
China Institute of Atomic of Energy
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by China Institute of Atomic of Energy filed Critical China Institute of Atomic of Energy
Priority to CN202110012559.6A priority Critical patent/CN112850106B/en
Publication of CN112850106A publication Critical patent/CN112850106A/en
Application granted granted Critical
Publication of CN112850106B publication Critical patent/CN112850106B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G47/00Article or material-handling devices associated with conveyors; Methods employing such devices
    • B65G47/74Feeding, transfer, or discharging devices of particular kinds or types
    • B65G47/88Separating or stopping elements, e.g. fingers
    • B65G47/8807Separating or stopping elements, e.g. fingers with one stop
    • B65G47/8823Pivoting stop, swinging in or out of the path of the article
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05FDEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00Power-operated mechanisms for wings

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Power-Operated Mechanisms For Wings (AREA)

Abstract

The invention relates to a material conveying mechanism, which comprises a linkage door opening and closing mechanism, a conveying line and an automatic stopping mechanism, wherein the linkage door opening and closing mechanism is arranged on the conveying line; the linkage door opening and closing mechanism comprises an opening and closing door, a rotating shaft part, a material carrier and a connecting rod part; the switch door is installed through the rotating shaft part and can rotate around the rotating shaft of the rotating shaft part; the connecting rod part comprises a connecting rod; two ends of the connecting rod are respectively connected with the material carrier and the opening and closing door so as to link the opening and closing process of the opening and closing door with the in-out process of the material carrier; two ends of the connecting rod are respectively connected to the material carrier and the opening and closing door through self-aligning roller bearings; the material carrier moves out of the switch door and then is in butt joint with a conveying line to transfer the material to the conveying mechanism; the automated stop mechanism is arranged on the material carrier and/or on the transport line to prevent or allow transport of material. The invention has the following beneficial effects: the invention can realize the door opening and closing action and the feeding or discharging of materials through a set of driving device, thereby saving the manufacturing cost and reducing the failure rate of the mechanism.

Description

Material conveying mechanism
Technical Field
The invention belongs to the field of machinery, and particularly relates to a material conveying mechanism.
Background
At present, when the door opening and closing functions of feeding materials into or out of the door are realized, mutually independent action systems are often adopted, namely a set of driving devices is arranged for the door opening action, and a set of driving devices is arranged for carriers for feeding the materials into or out of the door. Adopt this kind of mutually independent actuating system, need set up two sets of drive arrangement, increased manufacturing cost, and the fault incidence is higher, can lead to the safety problem in some occasions, for example carry out nuclear material and detect, when the door of measuring room is closed, but the drive arrangement of material carrier breaks down, does not send into the door with the material, will lead to the material to be long-time outside the measuring room this moment, if the material contains stronger radioactivity, probably has the radiation safety problem, also can influence work efficiency simultaneously.
The following problems arise when using a rigidly connected linkage mechanism to link the switching door with the material carrier. When the door weight of switch is great, because the action of gravity for the switch door causes flexible deformation to the countershaft when rotating, makes the rotation action of switch door not smooth and easy wearing and tearing, and rigid rotating-structure makes the switch door leave the gap easily (close not tight promptly) after closing easily, and this kind of gap often can increase the interference of environment to accurate measurement to and the change of material position, thereby influences measuring accuracy.
In addition, in the process of conveying the materials, the materials are often suspended at partial positions on the conveying line to perform certain operations, and then the materials are conveyed continuously after the operations are completed. For the pause of the material, an automatic stopping mechanism is usually used in practical application.
In the prior art, the blocking mechanism mainly comprises a driving motor and a blocking plate, in the material conveying process, when a material enters the blocking position, the driving motor rotates to drive the blocking plate to rotate to enter the blocking position, and when the material needs to be released, the driving motor reversely rotates to drive the blocking plate to rotate to enter the releasing position. By adopting the mode, the impact force of the stop plate on stopping the material can be completely applied to the driving motor, and the driving motor is not stressed on bearing the axial impact force, so that in the mode, the service life of the driving motor can be greatly reduced due to the long-time repeated bearing of the axial impact force, the failure occurrence rate is improved, and the normal operation of a production line is influenced.
In view of the above, the present invention is particularly proposed.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a material conveying mechanism, and the technical scheme can realize the door opening and closing action and the feeding or discharging of materials through a set of driving device, thereby saving the manufacturing cost and reducing the failure occurrence rate of the mechanism; the door can bear a larger mass, the door can be opened and closed smoothly, the service life is long, and the sealing effect is good after the door is closed; and can guarantee the material on the material carrier through automatic gear stop mechanism.
The technical scheme of the invention is as follows:
a material conveying mechanism comprises a linkage door opening and closing mechanism, a conveying line and an automatic stopping mechanism;
the linkage door opening and closing mechanism comprises an opening and closing door, a rotating shaft part, a material carrier and a connecting rod part; the opening and closing door is installed through the rotating shaft part and can rotate around the rotating shaft of the rotating shaft part so as to realize opening and closing of the opening and closing door; the connecting rod part comprises a connecting rod; two ends of the connecting rod are respectively connected with the material carrier and the opening and closing door so as to link the opening and closing process of the opening and closing door with the in-out process of the material carrier;
two ends of the connecting rod are respectively connected to the material carrier and the opening and closing door through self-aligning roller bearings so as to realize self-aligning under the condition that the rotating shaft part is stressed and bent to ensure smooth rotation and tight closing of the opening and closing door;
the material carrier moves out of the switch door and then is in butt joint with a conveying line to transfer the material to the conveying mechanism;
the automated stop mechanism is arranged on the material carrier and/or on the transport line to prevent or allow transport of material.
Further, in the material transporting mechanism, the linked door opening and closing mechanism further comprises a slide rail; the material carrier is arranged on the sliding rail in a sliding mode.
Furthermore, foretell material transport mechanism, the switch door is two divisions of doors, two divisions of doors respectively through two connecting rods with the material carrier rotates to be connected.
Further, in the material conveying mechanism, the two connecting rods are respectively connected to the two sides of the material carrier so as to balance the stress positions of the material carrier.
Further, in the material conveying mechanism, the driving device is in driving connection with the switch door.
Further, in the material transporting mechanism, the automatic stopping mechanism comprises a driving motor, a reversing structure and a stopping plate; the driving motor drives the stopping plate to switch between a stopping position and a releasing position through a reversing mechanism; the axial direction of a driving shaft of the driving motor is perpendicular to the stress direction of the stop plate when the stop plate stops so as to reduce the axial impact force applied to the driving motor.
Further, in the above material conveying mechanism, the reversing structure includes a worm and a worm wheel which are engaged with each other; the worm wheel is fixedly connected with the rotating shaft to drive the rotating shaft to rotate; the stop plate is arranged on the rotating shaft and is switched between a stop position and a release position along with the rotation of the rotating shaft; the worm is in driving connection with a driving shaft of the driving motor; the axial direction of the rotating shaft is vertical to the axial direction of the worm.
Further, in the material conveying mechanism, the worm wheel is of a non-full-circular petal-shaped structure.
Further, in the material conveying mechanism, the rotating shaft is connected with the worm gear through a key; the stop plate is connected with the rotating shaft through a key.
Further, in the material conveying mechanism, the driving motor is mounted on the base.
The invention has the following beneficial effects:
1. the switch door is rotatably connected with one end of the connecting rod, the other end of the connecting rod is rotatably connected with a material carrier, linkage of the switch door and the material carrier is achieved through the connecting rod, when the switch door is opened, the material carrier moves out of the door in a linkage mode, and when the switch door is closed, the material carrier moves into the door in a linkage mode. Therefore, only one set of driving device is arranged, the door opening and closing action and the feeding or the discharging of materials can be realized, the manufacturing cost is saved, and the failure rate of the mechanism is reduced.
2. The automatic stopping mechanism can temporarily store the material on the material carrier, and is beneficial to keeping stability when the material enters and exits the switch door.
3. Two ends of the connecting rod part are respectively provided with a self-aligning roller bearing. According to the characteristics of the self-aligning roller bearing, the self-aligning roller bearing has good self-aligning performance, and the bearing can still be normally used when the rotating shaft is stressed and bent or mounted in a non-concentric mode, so when the weight of the opening and closing door is larger, the rotating shaft is stressed and bent when the opening and closing door rotates, the opening and closing door can still rotate smoothly due to the self-aligning effect of the self-aligning roller bearing and is not easy to wear, and when the door is closed, the door can be closed under the self-aligning effect of the self-aligning roller bearing, and the closing is tighter.
4. The material carrier is arranged on the sliding rail in a sliding mode, so that the material carrier can move along the sliding rail, the reliability and accuracy of the movement of the material carrier are improved, and the failure rate of the mechanism is reduced.
5. The driving device is arranged on the switch door, and the driving force can be better distributed through driving the switch door (the switch door has larger mass relative to the material carrier), so that the failure rate of the connecting rod part is reduced.
6. The opening and closing door is a double-opening door, and the two connecting rods are rotatably connected with the material carrier, so that the movement reliability of the mechanism can be improved, and the fault rate is reduced.
7. The driving motor drives the stop plate to act through the reversing structure, so that the axial impact force of the driving motor is avoided, the service life of the driving motor is prolonged, and the worm and gear transmission is reliable and accurate.
8. Through the meshing of the worm gear and the worm, when the blocking plate receives impact force, the impact force acts on the worm gear and is born by the meshing part of the worm gear and the worm, and the impact on the driving shaft is greatly relieved.
9. The worm wheel is of a non-full-circle petal-shaped structure, so that the production and manufacturing cost can be saved, and the occupied space of the worm wheel can be saved.
Drawings
Fig. 1 is a schematic structural diagram of a material conveying mechanism of the present invention.
Fig. 2 is a schematic structural diagram of a linked door opening and closing mechanism.
Fig. 3 is a schematic structural view of the link portion.
Fig. 4 is a schematic structural view of the automatic stop mechanism.
FIG. 5 is a schematic view of the AA direction in FIG. 4.
In the above drawings, 1, opening and closing a door; 2. a rotating shaft part; 3. a link section; 3.1, connecting rods; 3.2, a first self-aligning roller bearing; 3.3, a second self-aligning roller bearing; 4. a material carrier; 5. a slide rail; 6. an automatic gear stop mechanism; 6.1, a base; 6.2, driving a motor; 6.3, a worm; 6.4, a worm gear; 6.5, stop board.
Detailed Description
The invention is described in detail below with reference to the figures and examples.
As shown in fig. 1, the invention provides a material conveying mechanism, which comprises a linkage door opening and closing mechanism, a conveying line and an automatic stopping mechanism 6; the material carrier 4 of the linked door opening and closing mechanism is butted with a conveying line after moving out of the door opening and closing 1 so as to transfer the material to the conveying mechanism; the automatic stop mechanism 6 is arranged on the material carrier 4 and/or on the transport line to prevent or allow transport of material.
As shown in fig. 2, the linked door opening and closing mechanism includes a door opening and closing part 1, a rotating shaft part 2, a material carrier 4 and a connecting rod part 3; the switch door 1 is installed through the rotating shaft part 2 and can rotate around the rotating shaft of the rotating shaft part 2 to realize the opening and closing of the switch door 1; the link portion 3 comprises a link 3.1 (shown in fig. 3); two ends of the connecting rod 3.1 are respectively connected with the material carrier 4 and the opening and closing door 1 so as to link the opening and closing process of the opening and closing door 1 and the in-out process of the material carrier 4. The switch door 1 is connected with the one end rotation of connecting rod 3.1, and the other end rotation of connecting rod 3.1 is connected with material carrier 4, realizes the linkage of switch door 1 and material carrier 4 through connecting rod 3.1, and when the switch door 1 was opened, material carrier 4 linked motion was outside the door, and when the switch door 1 was closed, material carrier 4 linked motion was inside the door. Therefore, only one set of driving device is arranged, the action of opening and closing the door 1 and the feeding or discharging of materials can be realized, the manufacturing cost is saved, and the failure rate of the mechanism is reduced.
As shown in fig. 3, two ends of a connecting rod 3.1 are respectively connected to the material carrier 4 and the switch door 1 through self-aligning roller bearings (a first self-aligning roller bearing 3.2 and a second self-aligning roller bearing 3.3) to realize self-aligning under the condition that the rotating shaft part 2 is stressed and bent so as to ensure smooth opening and closing of the switch door 1. The self-aligning roller bearing has good self-aligning performance, and the bearing can still be normally used when the rotating shaft is stressed and bent or is installed to be non-concentric, so when the weight of the switch door is larger, the rotating shaft of the switch door 1 is stressed and bent when the switch door rotates, but the switch door 1 can still realize smooth rotation and is not easy to wear due to the self-aligning effect of the self-aligning roller bearing, and when the door is closed, the switch door can be closed under the self-aligning effect of the self-aligning roller bearing, and the closing is tighter.
In fig. 2, the linked door opening and closing mechanism of the present invention further includes a slide rail 5; the material carrier 4 is arranged on the sliding rail 5 in a sliding mode, so that the material carrier 4 can move along the sliding rail 5, the reliability and the accuracy of the movement of the material carrier 4 are improved, and the failure rate of the mechanism is reduced.
When the material carrier 4 is driven by the driving device to move from the outside of the switch door 1 to the inside of the switch door 1 along the slide rail 5, the switch door 1 enters a closed state from an open state through the linkage of the connecting rod part 3, the automatic stopping mechanism 6 is started to stop the material on the material carrier 4, and the material is prevented from sliding out of the material carrier 4;
when the material carrier 4 is driven by the driving device to move to the outside of the switch door 1 along the slide rail 5 from the outside of the switch door 1, the switch door 1 enters an open state from a closed state through the linkage of the connecting rod part 3, the automatic stopping mechanism 6 is closed, and the released material slides out of the material carrier 4.
In this embodiment, drive arrangement with switch door 1 drive connection, through drive switch door 1 (switch door 1 has bigger quality for material carrier 4), distribution drive power that can be better reduces the fault rate of connecting rod portion 3. The switch door 1 is preferably a double door which is rotatably connected with the material carrier 4 through two connecting rods. The two connecting rods are respectively connected to two sides of the material carrier 4 to balance the stress position of the material carrier 4. Therefore, the movement reliability of the mechanism can be increased, and the fault occurrence rate is reduced.
As shown in fig. 4 and 5, the automatic gear stopping mechanism 6 includes a drive motor 6.2, a reversing structure, and a stop plate 6.5; the driving motor 6.2 drives the stopping plate 6.5 to switch between a stopping position and a releasing position through a reversing mechanism; the axial direction of the driving shaft of the driving motor 6.2 is perpendicular to the stress direction of the stop plate 6.5 when the stop plate is stopped so as to reduce the axial impact force on the driving motor 6.2.
In the embodiment, the reversing structure comprises a worm 6.3 and a worm wheel 6.4 which are meshed with each other; the worm wheel 6.4 is fixedly connected with the rotating shaft to drive the rotating shaft to rotate; the stop plate 6.5 is mounted on the rotating shaft to be switched between a stop position and a release position as the rotating shaft rotates; the worm 6.3 is in driving connection with a driving shaft of the driving motor 6.2; the axial direction of the rotating shaft is vertical to the axial direction of the worm 6.3.
Specifically, the rotating shaft is connected with the worm wheel 6.4 through a key; and the stop baffle 6.5 is connected with the rotating shaft through a key. The driving motor 6.2 is arranged on the base 6.1.
In order to save the production cost and the occupied space, the worm wheel 6.4 is of a non-full-circular petal-shaped structure.
The automatic gear stopping mechanism 6 of the invention has the following working process:
when the driving motor 6.2 rotates forwards, the worm 6.3 fixedly connected with the driving motor is driven to rotate, the worm 6.3 rotates to drive the worm wheel 6.4 to rotate, the worm wheel 6.4 drives the stop plate 6.5 to rotate through the rotating shaft, and when the stop plate 6.5 reaches the stop position, the driving motor 6.2 stops rotating. When the blocking plate 6.5 is impacted by the impact force from the material, the impact force is transmitted to the worm wheel 6.4 through the rotating shaft and cannot act on the driving motor 6.2, so that the service life of the driving motor 6.2 is prolonged, the use cost is saved, the worm and gear transmission is reliable and accurate, and the blocking position precision of the blocking plate 6.5 cannot be influenced.
After the gear stop work is finished, the driving motor 6.2 rotates reversely to drive the worm 6.3 fixedly connected with the driving motor to rotate, the worm 6.3 rotates to drive the worm wheel 6.4 to rotate, the worm wheel rotates to drive the gear stop plate 6.5 fixedly connected with the driving motor to rotate, and when the gear stop plate 6.5 reaches the release position, the driving motor 6.2 stops rotating.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.

Claims (10)

1. A material conveying mechanism is characterized by comprising a linkage door opening and closing mechanism, a conveying line and an automatic stopping mechanism;
the linkage door opening and closing mechanism comprises an opening and closing door, a rotating shaft part, a material carrier and a connecting rod part; the opening and closing door is installed through the rotating shaft part and can rotate around the rotating shaft of the rotating shaft part so as to realize opening and closing of the opening and closing door; the connecting rod part comprises a connecting rod; two ends of the connecting rod are respectively connected with the material carrier and the opening and closing door so as to link the opening and closing process of the opening and closing door with the in-out process of the material carrier;
two ends of the connecting rod are respectively connected to the material carrier and the opening and closing door through self-aligning roller bearings so as to realize self-aligning under the condition that the rotating shaft part is stressed and bent to ensure smooth rotation and tight closing of the opening and closing door;
the material carrier moves out of the switch door and then is in butt joint with a conveying line to transfer the material to the conveying mechanism;
the automated stop mechanism is arranged on the material carrier and/or on the transport line to prevent or allow transport of material.
2. The material transport mechanism of claim 1, wherein the linked door opening and closing mechanism further comprises a slide rail; the material carrier is arranged on the sliding rail in a sliding mode.
3. A linked door opening and closing mechanism according to claim 1, wherein said door is a double door, each of which is rotatably connected to said material carrier by two links.
4. A linked door opening and closing mechanism as claimed in claim 3, wherein two links are respectively connected to both sides of said material carrier to equalize the force-receiving positions of said material carrier.
5. A linked door opening and closing mechanism according to claim 1, wherein a drive means is drivingly connected to said opening and closing door.
6. The material transport mechanism of any one of claims 1-5, wherein the automatic catch mechanism comprises a drive motor, a reversing structure, and a catch plate; the driving motor drives the stopping plate to switch between a stopping position and a releasing position through a reversing mechanism; the axial direction of a driving shaft of the driving motor is perpendicular to the stress direction of the stop plate when the stop plate stops so as to reduce the axial impact force applied to the driving motor.
7. The material transport mechanism of claim 6, wherein the reversing structure comprises an intermeshing worm and worm gear; the worm wheel is fixedly connected with the rotating shaft to drive the rotating shaft to rotate; the stop plate is arranged on the rotating shaft and is switched between a stop position and a release position along with the rotation of the rotating shaft; the worm is in driving connection with a driving shaft of the driving motor; the axial direction of the rotating shaft is vertical to the axial direction of the worm.
8. The material transport mechanism of claim 7, wherein the worm gear is a non-fully circular lobed configuration.
9. The material transport mechanism of claim 7, wherein the shaft is keyed to the worm gear; the stop plate is connected with the rotating shaft through a key.
10. The material transport mechanism of claim 7, wherein the drive motor is mounted on the base.
CN202110012559.6A 2021-01-06 2021-01-06 Material conveying mechanism Active CN112850106B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110012559.6A CN112850106B (en) 2021-01-06 2021-01-06 Material conveying mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110012559.6A CN112850106B (en) 2021-01-06 2021-01-06 Material conveying mechanism

Publications (2)

Publication Number Publication Date
CN112850106A true CN112850106A (en) 2021-05-28
CN112850106B CN112850106B (en) 2022-04-05

Family

ID=76004285

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110012559.6A Active CN112850106B (en) 2021-01-06 2021-01-06 Material conveying mechanism

Country Status (1)

Country Link
CN (1) CN112850106B (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3015203A1 (en) * 1980-04-19 1981-10-29 Hermann 8404 Wörth Kronseder Bottle conveyor with star wheel lockable to stop bottles - has wheel carried on support with limited parallel movement against damper
CN206447268U (en) * 2017-01-23 2017-08-29 襄阳新火炬科技有限公司 A kind of automatic conveyor line switch valve system
CN209427688U (en) * 2018-11-27 2019-09-24 河北工业职业技术学院 Stop gauge
CN209973646U (en) * 2019-04-19 2020-01-21 广州市民彩新材料科技有限公司 Automatic pipe feeding and storing mechanism for hose packaging
CN210890692U (en) * 2019-09-20 2020-06-30 广州市雄云视听设备有限公司 Hidden projection device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3015203A1 (en) * 1980-04-19 1981-10-29 Hermann 8404 Wörth Kronseder Bottle conveyor with star wheel lockable to stop bottles - has wheel carried on support with limited parallel movement against damper
CN206447268U (en) * 2017-01-23 2017-08-29 襄阳新火炬科技有限公司 A kind of automatic conveyor line switch valve system
CN209427688U (en) * 2018-11-27 2019-09-24 河北工业职业技术学院 Stop gauge
CN209973646U (en) * 2019-04-19 2020-01-21 广州市民彩新材料科技有限公司 Automatic pipe feeding and storing mechanism for hose packaging
CN210890692U (en) * 2019-09-20 2020-06-30 广州市雄云视听设备有限公司 Hidden projection device

Also Published As

Publication number Publication date
CN112850106B (en) 2022-04-05

Similar Documents

Publication Publication Date Title
US8028820B2 (en) Device for storing objects
JP2018521244A (en) Motor operated vertical moving gate
CN112850106B (en) Material conveying mechanism
CN220411879U (en) Conveying device
CN101929133B (en) Shear door machine for automatic ticket checker
JP2016084027A (en) Movable door device
CN111348378A (en) Logistics package climbing mechanism
CN109720972A (en) Elevator cage door machine device
CN106763813A (en) A kind of electric check valve with position instruction
CN108516358B (en) Spiral arm anti-falling device and spiral car unloader
CN112854963A (en) Linkage door opening and closing mechanism
CN216232236U (en) Sealed bottom door of hopper car
CN100473491C (en) Parts assembling and unassembling equipment, and industrial assembling and unassembling machine containing the same
CN2212571Y (en) Reciprocating scraper conveyer
CN114132726A (en) Conveying and carrying rotary device with centering function
CN209874875U (en) Cabin door mounting structure and vertical double-door film coating machine
CN219688761U (en) Hopper door opening and closing mechanism of bagged material loading machine
US3680685A (en) Safety conveyor
CN211596540U (en) Prevent trailing convertible floodgate machine
CN201762674U (en) Scissors type door machine of automatic ticket checking machine
CN219991043U (en) Cam type lifting device
CN219928643U (en) Stop mechanism of speed reducer
CN219179978U (en) Self-locking gate mechanism
CN219887862U (en) Synchronous motion double-door-plate mechanism
CN219506991U (en) Product centering mechanism and conveying device

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant