CN107758253B

CN107758253B - Accumulation conveyor

Info

Publication number: CN107758253B
Application number: CN201711097827.9A
Authority: CN
Inventors: 孟繁冲; 崔正琦; 王枫博
Original assignee: Shanghai Fengxian Saikeli Automobile Mould Technology Application Co ltd; Shanghai Superior Die Technology Co Ltd
Current assignee: Shanghai Fengxian Saikeli Automobile Mould Technology Application Co ltd; Shanghai Superior Die Technology Co Ltd
Priority date: 2017-11-09
Filing date: 2017-11-09
Publication date: 2023-11-24
Anticipated expiration: 2037-11-09
Also published as: CN107758253A

Abstract

The invention relates to the technical field of conveyors, in particular to a stacking conveyor, which comprises a machine body, a conveying trolley, a turnover device and a blocking and positioning device, wherein a transmission chain, a driving sprocket and a guide rail are arranged on the machine body; the turnover device comprises a head wheel which is rotatably arranged in a turnover area of the guide rail, a plurality of buckling units are uniformly arranged on the outer circumference of the head wheel, each buckling unit comprises two first blind holes which are circumferentially arranged on the outer circumference of the head wheel at intervals, two elastic clamping assemblies which are respectively arranged in the two first blind holes and are protruded out of the outer circumference of the head wheel, and a clamping space which is formed between the two elastic clamping assemblies, the elastic clamping assemblies can stretch out and draw back along the radial direction of the head wheel, and a clamping block which can be clamped and positioned in the clamping space is arranged on the conveying trolley. Can ensure that the conveying trolley can accurately and stably turn over according to the turning route when turning over.

Description

Accumulation conveyor

Technical Field

The invention relates to the technical field of conveyors, in particular to a power and free conveyor.

Background

The accumulation conveyor is widely applied to the material conveying, and is the first choice for vast enterprises to improve the production efficiency and reduce the labor intensity.

Most of the conventional conveyors have complex structures and unstable performances, and particularly when a conveying trolley runs on a guide rail and passes through a turnover area of the conveying trolley, the problem that the trolley cannot safely and stably turn is often caused, and conveying is forced to be performed on time. Therefore, there is a need for a stacker conveyor that can ensure accurate and stable turning of a conveyor carriage along a turning route when turning on a guide rail.

Disclosure of Invention

The technical problem to be solved by the invention is to provide the accumulation conveyor which can ensure that the conveying trolley can accurately and stably turn over according to the turning route when turning over and turning over on the guide rail, so as to overcome the defects in the prior art.

In order to solve the technical problems, the invention adopts the following technical scheme: the utility model provides an accumulation type conveyor, includes fuselage, travelling bogie, turning device and stops positioner, is equipped with drive chain, drive chain wheel that drives drive chain circulation operation and locates the guide rail of drive chain both sides with drive chain parallely on the fuselage, and the travelling bogie passes through the running roller to be supported on the guide rail and can follow the guide rail operation under drive chain's drive, stops positioner and is used for realizing the location of travelling bogie on the guide rail; the turnover device comprises a head wheel which is rotatably arranged in a turnover area of the guide rail, a plurality of buckling units are uniformly arranged on the outer circumference of the head wheel, each buckling unit comprises two first blind holes which are circumferentially arranged on the outer circumference of the head wheel at intervals, two elastic clamping assemblies which are respectively arranged in the two first blind holes and are protruded out of the outer circumference of the head wheel, and a clamping space which is formed between the two elastic clamping assemblies, the elastic clamping assemblies can stretch out and draw back along the radial direction of the head wheel, and a clamping block which can be clamped and positioned in the clamping space is arranged on the conveying trolley.

Preferably, two clamping blocks are arranged on the conveying trolley at intervals along the running direction of the conveying trolley, and the two clamping blocks can be simultaneously and respectively clamped and positioned in the clamping spaces of the two adjacent clamping units.

Preferably, the elastic clamping assembly comprises a first spring and a telescopic plunger, one end of the first spring is connected with the bottom wall of the first blind hole, the other end of the first spring is connected with one end of the telescopic plunger, and the other end of the telescopic plunger protrudes out of the outer circumferential surface of the head wheel.

Preferably, the telescopic plunger protrudes from one end face of the outer circumferential face of the head wheel to form an arc-shaped face matched with the outer circumferential face of the head wheel.

Preferably, a plurality of notches corresponding to the buckling units one by one are arranged on the outer circumference of the head wheel, and two first blind holes of the buckling units are formed in the bottom wall of the notch; the base comprises a horizontal part which is attached to the bottom wall of the notch and a vertical part which extends vertically from the middle of the horizontal part, one end face of the vertical part, which is far away from the horizontal part, is positioned on the circumference of the outer circumference of the head wheel, two sliding spaces are formed between the vertical part and two side walls of the notch, and a first through hole which corresponds to and is communicated with the first blind hole is formed in the horizontal part; the telescopic plunger comprises a telescopic column and a sliding plug, one end of the telescopic column stretches into the first blind hole through the first through hole to be connected with the first spring, the other end of the telescopic column is connected with the sliding plug, and the sliding plug is slidably arranged in the sliding space and protrudes out of the vertical portion.

Preferably, two ends of the conveying trolley are respectively provided with a baffle plate, the blocking positioning device comprises a horizontally arranged support plate, a blocking positioning mechanism is respectively arranged above the support plate at the positions corresponding to the two baffle plates, and the blocking positioning mechanism is provided with a first station for blocking the baffle plates to stop the conveying trolley and a second station for releasing the baffle plates to enable the conveying trolley to continue to run; the two ends of the bidirectional telescopic rod are respectively connected with the two blocking and positioning mechanisms through a connecting rod assembly and drive the two blocking and positioning mechanisms to synchronously switch between the first station and the second station.

Preferably, the connecting rod assembly comprises a transmission rod which is horizontally arranged and a reversing rod which is obliquely arranged, one end of the transmission rod is connected with one movable end of the bidirectional telescopic rod, the other end of the transmission rod is hinged with one end of the reversing rod, the other end of the reversing rod is hinged with the blocking positioning mechanism, and the bidirectional telescopic rod drives the reversing rod to swing and drives the blocking positioning mechanism to rotate between the first station and the second station.

Preferably, the transmission rod is detachably connected with the movable end of the bidirectional telescopic rod.

Preferably, a second through hole is respectively arranged above the support plate at the positions corresponding to the two baffle plates, the blocking and positioning mechanism comprises a support, a rotating shaft, a first baffle wheel, a second baffle wheel and an elastic positioning assembly, the rotating shaft is rotatably arranged on the support and positioned above the second through hole, the axis of the rotating shaft is parallel to the running direction of the conveying trolley, and the connecting rod assembly is hinged with the rotating shaft; the first baffle wheel and the second baffle wheel are axially spaced and are arranged on the rotating shaft in a staggered manner along the circumferential direction; the elastic positioning component can be arranged on the rotating shaft in a telescopic way along the radial direction of the rotating shaft and is positioned between the first baffle wheel and the second baffle wheel, the elastic positioning component and the first baffle wheel are positioned on the same axial plane of the rotating shaft and form a blocking positioning space with the first baffle wheel, and the baffle plate on the conveying trolley can be clamped and positioned in the blocking positioning space.

Preferably, a hysteresis damper is arranged in the middle of the conveying trolley, and a driving chain wheel meshed with the driving chain is arranged on the main shaft of the hysteresis damper.

Compared with the prior art, the invention has obvious progress:

clamping blocks on the conveying trolley are matched and clamped with clamping units on the head wheels of the turnover device, clamping of the clamping units to the clamping blocks is guaranteed through self elastic force of two elastic clamping assemblies in the clamping units, the head wheels and the conveying trolley synchronously run and turn over, and the conveying trolley can be ensured to accurately and stably turn over and run according to a turnover route when turning over and turning over in a turnover area of the guide rail.

Drawings

Fig. 1 is a schematic diagram of the overall structure of an accumulation conveyor according to an embodiment of the present invention.

Fig. 2 is a schematic operation diagram of the turning device according to the embodiment of the present invention.

Fig. 3 is a schematic partial cross-sectional view of a nose wheel in a tilting device according to an embodiment of the invention.

Fig. 4 is a schematic view of the structure of the embodiment of the present invention with the headwheels removed at the rail flip area.

Fig. 5 is a schematic perspective view of a blocking positioning device according to an embodiment of the present invention.

Fig. 6 is an enlarged schematic view of the portion a in fig. 5.

Fig. 7 is a schematic front view of a blocking positioning device according to an embodiment of the present invention.

Fig. 8 is a schematic cross-sectional view taken along B-B in fig. 7.

Fig. 9 is a schematic structural view of a conveying cart according to an embodiment of the present invention.

Fig. 10 is an exploded view of the sprocket and hysteresis damper assembly of the transfer cart in accordance with an embodiment of the present invention.

In the figure:

100. fuselage 200, conveying trolley

300. Turning device 400 and blocking positioning device

101. Drive chain 102, guide rail

103. Turning region 104, track

105. Drive sprocket 106, drive shaft

107. Support 108, second spring

109. Card 110, leading-in surface

112. Blocking surface 113, leading surface

114. Swing arm 115 and guide block

116. Driven sprocket 117, driven shaft

201. Roller 202 and clamping block

203. Drive sprocket 204, baffle

205. Hysteresis damper 206, spindle

207. Drive sprocket shaft 208, mounting hole

209. Fixing piece 210, third through hole

211. Second sleeve

301. Head wheel 302, buckle unit

303. First blind hole 304, elastic clamping assembly

305. Clamping space 306, first spring

307. Telescoping plunger 308, telescoping column

309. Sliding plug 310, boss

311. Gap 312, sliding space

313. Base 314, horizontal portion

315. Vertical part 316, first through hole

401. Support plate 402, second through hole

403. Blocking positioning mechanism 404, support

405. First shaft sleeve 406, rotary shaft

407. Second blind hole 408, small diameter hole

409. Large diameter hole 410, first catch wheel

411. Second catch wheel 412 blocks the positioning space

413. Third spring 414, locating pin

415. Limiting block 416 and bidirectional telescopic rod

417. Cylinder 418, piston rod

419. Mounting seat 420 and transmission rod

421. Reversing lever 422, lock nut

423. Hinge 424 and connecting block

Detailed Description

The following describes the embodiments of the present invention in further detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and are not intended to be limiting.

In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, in the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.

As shown in fig. 1 to 10, one embodiment of the accumulation conveyor of the present invention. The accumulation conveyor of this embodiment includes a main body 100, a conveying cart 200, a turning device 300, and a blocking positioning device 400.

As shown in fig. 1, a driving chain 101 and a driving sprocket 105 for driving the driving chain 101 to circulate are provided on a machine body 100, the driving sprocket 105 is provided on a driving shaft 106, the driving shaft 106 is connected with a driving member (not shown in the figure), the driving shaft 106 is driven to rotate by the driving member, thereby driving the driving sprocket 105 to rotate, the driving chain 101 is meshed with the driving sprocket 105, and the driving chain 101 is driven to circulate by the rotation of the driving sprocket 105. The driving member may be a motor. The driving sprocket 105 and the driving shaft 106 are disposed at one end of the driving chain 101, the driven sprocket 116 and the driven shaft 117 are disposed at the other end of the driving chain 101, and the driven sprocket 116 and the driven shaft 117 are driven to rotate together by the circulating operation of the driving chain 101. A guide rail 102 parallel to the drive chain 101 is provided on each side of the drive chain 101. Rollers 201 (see fig. 2) are respectively arranged at two ends of the conveying trolley 200, and the conveying trolley 200 is supported on the guide rail 102 through the rollers 201 and can run along the guide rail 102 under the drive of the transmission chain 101. The conveying trolley 200 is provided with a drive sprocket 203 (see fig. 2) engaged with the drive chain 101, and the drive sprocket 203 is provided in the middle of the conveying trolley 200. The transmission chain wheel 203 on the transmission trolley 200 is meshed with the transmission chain 101, so that the transmission trolley 200 can circularly run along with the transmission chain 101. The rail 102 has a turn-over region 103 (see fig. 2) for turning over the transport carriage 200, and at the turn-over region 103 of the rail 102, the rollers 201 of the transport carriage 200 run in a turn-over path of the turn-over region 103 of the rail 102. The turning device 300 is matched with the roller 201 of the conveying trolley 200, and is used for ensuring that the turning route of the conveying trolley 200 is accurately and stably turned and reversed.

As shown in fig. 2, the turning device 300 of the present embodiment includes a head wheel 301, where the head wheel 301 is rotatably disposed in the turning area 103 of the guide rail 102, and preferably, in the present embodiment, the axis of the head wheel 301 is perpendicular to the running direction of the conveying trolley 200. A plurality of snap units 302 are uniformly provided on the outer circumference of the head wheel 301, and each snap unit 302 includes two first blind holes 303 (see fig. 3) provided on the outer circumference of the head wheel 301 at intervals in the circumferential direction, and the axes of the first blind holes 303 are parallel to the radial direction of the head wheel 301, preferably, the two first blind holes 303 are arranged symmetrically with respect to a straight line where the diameter of the head wheel 301 is located. Two elastic clamping components 304 are respectively arranged in the two first blind holes 303, the elastic clamping components 304 protrude out of the outer circumferential surface of the head wheel 301, a clamping space 305 is formed between the two elastic clamping components 304, and the elastic clamping components 304 can stretch out and draw back along the radial direction of the head wheel 301. The conveying trolley 200 is provided with a clamping block 202, and the clamping block 202 can be clamped and positioned in the clamping space 305. When the conveying trolley 200 moves to the overturning area 103 along the guide rail 102, the clamping block 202 on the conveying trolley 200 is contacted with one clamping unit 302 on the head wheel 301, and one elastic clamping assembly 304 in the clamping unit 302 is compressed, so that the elastic clamping assembly 304 is compressed into the first blind hole 303 along the radial direction of the head wheel 301, and the clamping block 202 can enter the clamping space 305; after the clamping block enters the clamping space 305, the elastic clamping assembly 304 compressed into the first blind hole 303 automatically rebounds and stretches due to the disappearance of the external force acted on the clamping block 1, so that the clamping block 202 is clamped and positioned in the clamping space 305 together with the other elastic clamping assembly 304, the clamping of the clamping block 202 by the clamping unit 302 is ensured by the self elastic force of the two elastic clamping assemblies 304, the head wheel 301 and the conveying trolley 200 synchronously run and overturn, and the conveying trolley 200 can be ensured to accurately and stably overturn and run according to an overturning route when the overturning area 103 of the guide rail 102 overturns and turns.

Further, in the present embodiment, two clamping blocks 202 are disposed on the conveying trolley 200 along the running direction of the conveying trolley 200 at intervals, and the two clamping blocks 202 can be simultaneously and respectively clamped and positioned in the clamping spaces 305 of the two adjacent clamping units 302. When the conveying trolley 200 moves to the overturning area 103 along the guide rail 102, the two clamping blocks 202 can be matched and clamped with the clamping spaces 305 of the two adjacent clamping units 302 on the head wheel 301 in sequence, and can be clamped and positioned with the clamping spaces 305 of the two clamping units 302 in the overturning operation process, so that the clamping strength between the head wheel 301 and the conveying trolley 200 can be enhanced, and the overturning accuracy and stability of the conveying trolley 200 are further ensured.

Further, in the present embodiment, the head wheels 301 at the turning areas 103 of the two guide rails 102 are each provided on the same drive shaft 106 as the drive sprocket 105. After the clamping block 202 on the conveying trolley 200 is matched and clamped with the clamping unit 302 on the head wheel 301, the head wheel 301 and the conveying trolley 200 can synchronously run and turn over by the rotation of the driving shaft 106.

Preferably, as shown in fig. 3, the elastic clamping assembly 304 in this embodiment includes a first spring 306 and a telescopic plunger 307, where the first spring 306 and the telescopic plunger 307 are both telescopically disposed in the first blind hole 303 along the axial direction of the first blind hole 303, one end of the first spring 306 is connected to the bottom wall of the first blind hole 303, the other end of the first spring 306 is connected to one end of the telescopic plunger 307, and the other end of the telescopic plunger 307 protrudes from the outer circumferential surface of the head wheel 301. That is, in a natural state, the telescopic plungers 307 are supported by the first springs 306 and protrude from the outer circumferential surface of the head wheel 301, and the two telescopic plungers 307 of one fastening unit 302 protrude from between both ends of the outer circumferential surface of the head wheel 301 to form the fastening space 305. When the telescopic plunger 307 is pressed in contact with the clamping block 202 on the conveying trolley 200, the first spring 306 is compressed, the telescopic plunger 307 is retracted into the first blind hole 303, the clamping block 202 can enter the clamping space 305, then the clamping block 202 is not acted on the telescopic plunger 307 any more, and the first spring 306 is extended to rebound and reset. In order to ensure that the clamping block 202 can smoothly enter the clamping space 305, preferably, the length of the telescopic plunger 307 should be smaller than the depth of the first blind hole 303, so that the telescopic plunger 307 can be completely retracted into the first blind hole 303. Further, the end surface of the telescopic plunger 307 protrudes from the outer circumferential surface of the head wheel 301 to form an arc surface matched with the outer circumferential surface of the head wheel 301, so that when the telescopic plunger 307 is retracted into the first blind hole 303, a smooth transition is formed between the end surface of the telescopic plunger 307 and the outer circumferential surface of the head wheel 301, and the conveying trolley 200 can further conveniently and smoothly enter the clamping space 305.

Further, in the present embodiment, a plurality of notches 311 corresponding to the fastening units 302 are disposed on the outer circumference of the head wheel 301, and two first blind holes 303 of the fastening units 302 are formed on the bottom wall of the notches 311. The notch 311 is internally provided with a base 313, the base 313 comprises a horizontal part 314 attached to the bottom wall of the notch 311 and a vertical part 315 extending vertically from the middle part of the horizontal part 314, one end surface of the vertical part 315 far away from the horizontal part 314 is positioned on the circumference where the outer circumferential surface of the head wheel 301 is positioned, two sliding spaces 312 are formed between the vertical part 315 and two side walls of the notch 311, and the horizontal part 314 is provided with a first through hole 316 which corresponds to and is communicated with the first blind hole 303. The telescopic plunger 307 comprises a telescopic column 308 and a sliding plug 309, one end of the telescopic column 308 extends into the first blind hole 303 through the first through hole 316 to be connected with the first spring 306, the other end of the telescopic column 308 is connected with the sliding plug 309, the sliding plug 309 is slidably arranged in the sliding space 312 and protrudes out of the vertical portion 315 of the base 313, and the sliding plug 309 also protrudes out of the outer circumference of the head wheel 301. Two sliding plugs 309 of one fastening unit 302 protrude between the vertical portion 315 of the base 313 and two ends of the outer circumferential surface of the head wheel 301 to form a fastening space 305. Thus, the telescopic plunger 307 can be effectively supported and guided by sliding the telescopic column 308 in the first through hole 316 on the horizontal portion 314 of the base 313 and sliding the sliding plug 309 in the sliding space 312 between the vertical portion 315 of the base 313 and the side wall of the notch 311.

Preferably, in this embodiment, the diameter of the first through hole 316 on the horizontal portion 314 of the base 313 is smaller than the diameter of the first blind hole 303, the boss 310 extends radially from the outer peripheral surface of the end of the telescopic column 308 extending into the first blind hole 303, and the boss 310 is engaged with the horizontal portion 314 of the base 313, so that the telescopic column 308 can be limited in extension, i.e. the telescopic plunger 307 is limited in extension, so that the telescopic plunger 307 is prevented from protruding beyond the outer peripheral surface of the head wheel 301 to be unfavorable for engaging with the clamping block 202 on the conveying trolley 200, and the first spring 306 is allowed to be in a precompressed state in a natural state, thereby ensuring stable support of the telescopic plunger 307 by the first spring 306.

Further, as shown in fig. 4, a support 107 is provided on the guide rail 102 at a position corresponding to the turning device 300, a second spring 108 is hung on the support 107, and a clamping plate 109 is hung on the lower end of the second spring 108. I.e. the upper end of the second spring 108 is connected to the support 107 and the lower end of the second spring 108 is connected to the upper end of the clamping plate 109. The guide rail 102 has a track 104 contacting with the roller 201 of the conveying trolley 200, the clamping plate 109 is located above the track 104 of the guide rail 102, a space for passing through the roller 201 of the conveying trolley 200 is formed between the lower end of the clamping plate 109 and the track 104, and the clamping plate 109 can block the running of the roller 20 on the track 104 under the action of the elastic force of the second spring 108. That is, when the conveying trolley 200 moves to the overturning area 103 along the guide rail 102, the roller 201 of the conveying trolley 200 contacts with the lower end of the clamping plate 109 above the track 104 of the guide rail 102, and is blocked by the clamping plate 109 to stop the operation, so that the matching time can be reserved for the clamping connection of the clamping block 202 on the conveying trolley 200 and the clamping unit 302 on the head wheel 301, and after the clamping block 202 on the conveying trolley 200 is clamped and positioned with the clamping unit 302 on the head wheel 301, under the action of the driving shaft 106, the roller 201 of the conveying trolley 200 forcedly overcomes the acting force of the second spring 108 to push the clamping plate 109 to compress the second spring 108 and rise, so that the roller 201 can pass between the clamping plate 109 and the track 104 of the guide rail 102 to start overturning. Therefore, the clamping block 202 on the conveying trolley 200 can be effectively clamped with the clamping unit 302 on the head wheel 301, and the overturning stability is ensured.

Preferably, in this embodiment, the upper end of the clamping plate 109 connected to the second spring 108 extends out of a swing arm 114 along the running direction of the conveying trolley 200, and one end of the swing arm 114 away from the clamping plate 109 is hinged to the support 107. When the clamping plate 109 rises or naturally sags under the action of external force, the swing arm 114 swings with the clamping plate, so that the clamping plate 109 moves up and down and is guided and supported. Further, in this example, a guide block 115 is further provided on the support 107, a guide chute extending up and down is provided on the guide block 115, and one side of the clamping plate 109 is slidably provided in the guide chute of the guide block 115 up and down, so that the stability of the up and down movement of the clamping plate 109 can be further ensured.

Preferably, in the present embodiment, the lower end surface of the card 109 includes a leading surface 110, a blocking surface 112, and a trailing surface 113 in order along the running direction of the conveying cart 200, and the blocking surface 112 is a stepped surface facing the conveying cart 200. When the roller 201 of the conveying trolley 200 moves to the clamping plate 109, the roller is guided between the clamping plate 109 and the track 104 of the guide rail 102 by the guiding surface 110 of the clamping plate 109 and is blocked by the blocking surface 112 of the clamping plate 109; when the roller 201 of the carriage 200 forcibly overcomes the force of the second spring 108, it is guided out of the guide surface 113 of the card 109 against the stopper of the stopper surface 112.

The blocking positioning device 400 of the present embodiment is used to achieve positioning of the transportation cart 200 on the rail 102. The two ends of the conveying trolley 200 are respectively provided with a baffle 204, and in the actual working process, the conveying trolley 200 is provided with a plurality of conveying units, and each conveying trolley 200 is a conveying unit. The blocking positioning device 400 of the present embodiment is used to realize positioning one by one, releasing the conveyance carriage 200, and blocking the subsequent conveyance carriage 200.

Specifically, as shown in fig. 5, the blocking and positioning device 400 of the present embodiment includes a horizontally disposed support plate 401, and a blocking and positioning mechanism 403 is disposed above the support plate 401 at positions corresponding to two blocking plates 204 of the transportation cart 200, where the blocking and positioning mechanism 403 has a first station for blocking the blocking plates 204 to stop the transportation cart 200 and a second station for releasing the blocking plates 204 to allow the transportation cart 200 to continue to run. A bidirectional telescopic rod 416 is arranged below the support plate 401 at a position between the two blocking and positioning mechanisms 403, two ends of the bidirectional telescopic rod 416 are respectively connected with the two blocking and positioning mechanisms 403 through a connecting rod assembly, and the bidirectional telescopic rod 416 drives the two blocking and positioning mechanisms 403 to synchronously switch between the first station and the second station, so that positioning and releasing of the conveying trolley 200 are realized. The blocking and positioning device 400 of the embodiment synchronously drives the two blocking and positioning mechanisms 403 to move through one bidirectional telescopic rod 416, can ensure stable and accurate blocking and positioning of the conveying trolley 200, has small occupied space and more compact structure, is beneficial to enhancing the stability of the blocking and positioning device 400 in working, and has the advantages of simple and reasonable structural design and safe and reliable performance.

Preferably, the bidirectional telescopic rod 416 in this embodiment is a bidirectional cylinder, and the bidirectional cylinder includes a cylinder body 417 parallel to the support plate 401 and a piston rod 418 horizontally penetrating the cylinder body 417, and two ends of the piston rod 418 are respectively connected to one connecting rod assembly. The horizontal movement of the piston rod 418 can drive the connecting rod assemblies at the two ends to move along with the horizontal movement, and drive the two blocking and positioning mechanisms 403 to synchronously switch between the first station and the second station. Of course, the bidirectional telescopic rod 416 of the present invention is not limited to the bidirectional cylinder of the present embodiment, but may be another type of bidirectional telescopic rod, such as a hydraulic cylinder or an electric push rod.

Further, the bi-directional telescopic rod 416 in the present embodiment is disposed below the support plate 401 through a mounting seat 419. That is, a mounting seat 419 is arranged below the support plate 401, and the bidirectional telescopic rod 416 is fixedly arranged on the mounting seat 419. The setting position of the mounting seat 419 can be accurately calculated and determined according to the horizontal distance between the two blocking and positioning mechanisms 403 and the size of the connecting rod assembly, so that the stable and accurate blocking and positioning of the conveying trolley 200 can be ensured, and meanwhile, the compact and reasonable structure is ensured.

Preferably, the link assembly in this embodiment includes a horizontally disposed transmission rod 420 and an obliquely disposed reversing rod 421, one end of the transmission rod 420 is connected to a movable end of the bidirectional telescopic rod 416, the other end of the transmission rod 420 is hinged to one end of the reversing rod 421, the other end of the reversing rod 421 is hinged to the blocking positioning mechanism 403, and the bidirectional telescopic rod 416 drives the reversing rod 421 to swing and drives the blocking positioning mechanism 403 to rotate between the first station and the second station. In this embodiment, two ends of the piston rod 418 of the bidirectional cylinder are respectively connected with a transmission rod 420, when the piston rod 418 of the bidirectional cylinder moves horizontally, the two transmission rods 420 are driven to move horizontally in the same direction, and the two reversing rods 421 are driven to swing in the same direction, so that the two blocking and positioning mechanisms 403 are driven to rotate in the same direction, and synchronous rotation of the two blocking and positioning mechanisms 403 between the first station and the second station is realized.

Further, a drive link 420 is removably coupled to the movable end of the bi-directional telescoping rod 416. In this embodiment, the transmission rod 420 is detachably connected to the piston rod 418 of the bi-directional cylinder, whereby the connection position of the transmission rod 420 to the piston rod 418 of the bi-directional cylinder can be adjusted. Preferably, the transmission rod 420 is connected with the piston rod 418 of the bidirectional cylinder through a lock nut 422.

Preferably, in the present embodiment, a second through hole 402 is formed above the support plate 401 at positions corresponding to the two blocking pieces 204 of the transportation cart 200, respectively. As shown in fig. 6, the blocking positioning mechanism 403 includes a support 404, a rotating shaft 406, a first catch wheel 410, a second catch wheel 411, and an elastic positioning assembly. The rotating shaft 406 is rotatably arranged on the support 404, the rotating shaft 406 is positioned above the second through hole 402 of the support plate 401, the axis of the rotating shaft 406 is parallel to the running direction of the conveying trolley 200, the reversing rod 421 in the connecting rod assembly is hinged with the rotating shaft 406 through the hinge 423, and under the driving action of the piston rod 418 of the bidirectional cylinder, the swinging of the reversing rod 421 can drive the rotating shaft 11 to rotate. Preferably, a first sleeve 405 is disposed between the two ends of the shaft 406 and the support 404. The first catch wheel 410 and the second catch wheel 411 are disposed on the rotating shaft 406 at axial intervals and in a circumferentially offset manner. In the initial state, the first blocking wheel 410 is in a vertical state and is located right above the rotating shaft 406, the second blocking wheel 411 is in an inclined state and is located at the side of the rotating shaft 406, when the conveying trolley 200 moves to the blocking positioning device 400 in this embodiment, the blocking sheet 204 on the conveying trolley 200 abuts against the first blocking wheel 410 and is blocked by the first blocking wheel 410 to stop moving, so that the positioning of the conveying trolley 200 can be realized, that is, the blocking positioning mechanism 403 can block the blocking sheet 204 to stop moving the conveying trolley 200 at the first station. When the conveying trolley 200 needs to be released, the bidirectional cylinder drives the rotating shaft 11 to rotate, so as to drive the first baffle wheel 410 and the second baffle wheel 411 to rotate, so that the first baffle wheel 410 is in an inclined state and is positioned at the side of the rotating shaft 406, and the second baffle wheel 411 is in a vertical state and is positioned right above the rotating shaft 406, at this time, the first baffle wheel 410 leaves the baffle 204 on the conveying trolley 200, so that the conveying trolley 200 can continue to move forward, and the second baffle wheel 411 can abut against the baffle 204 of the next conveying trolley 200 to block the next conveying trolley 200, thereby preventing the following conveying trolley 200 from directly passing through following the preceding conveying trolley 200, and realizing the releasing of the conveying trolley 200 and the blocking of the following conveying trolley 200, namely, the blocking positioning mechanism 403 can release the baffle 204 to enable the conveying trolley 200 to continue to move. The elastic positioning component can be telescopically arranged on the rotating shaft 406 along the radial direction of the rotating shaft 406 and positioned between the first baffle wheel 410 and the second baffle wheel 411, the elastic positioning component and the first baffle wheel 410 are positioned on the same axial plane of the rotating shaft 406 and form a blocking positioning space 412 (see fig. 8) with the first baffle wheel 410, and the blocking piece 204 on the conveying trolley 200 can be clamped and positioned in the blocking positioning space 412, so that the stability of blocking positioning of the blocking positioning mechanism 403 on the conveying trolley 200 can be ensured.

Further, in this embodiment, the rotating shaft 406 is a hexagonal prism, and the first blocking wheel 410 and the second blocking wheel 411 are respectively disposed on two adjacent faces of the hexagonal prism, so that an included angle of 60 ° is formed between the axis of the first blocking wheel 410 and the axis of the second blocking wheel 411, and the rotating shaft 11 is driven to rotate by 60 ° by one action of the bidirectional cylinder, so that the face where the first blocking wheel 410 is located and the face where the second blocking wheel 411 is located are faced upwards in turn, and accurate control can be achieved.

Further, as shown in fig. 7 and 8, in the present embodiment, a second blind hole 407 is radially formed on the outer peripheral surface of the rotating shaft 406, and the second blind hole 407 and the first baffle wheel 410 are located on the same surface of the hexagonal rotating shaft 406. The elastic positioning assembly comprises a third spring 413 and a positioning pin 414 which are arranged in the second blind hole 407, the third spring 413 and the positioning pin 414 are all arranged in the second blind hole 407 in a telescopic way along the axial direction of the second blind hole 407, one end of the third spring 413 is connected with the bottom wall of the second blind hole 407, the other end of the third spring 413 is connected with the positioning pin 414, the positioning pin 414 protrudes out of the peripheral surface of the rotating shaft 406, and a blocking positioning space 412 is formed between the positioning pin 414 and the first blocking wheel 410. When the transfer cart 200 is moved to the elastic positioning assembly, the positioning pin 414 compresses the third spring 413 and retracts into the second blind hole 407 under the pressure of the flap 204 on the transfer cart 200, allowing the flap 204 on the transfer cart 200 to enter the blocking positioning space 412. When the baffle plate 204 on the conveying trolley 200 enters the blocking positioning space 412, the baffle plate 204 does not act on the positioning pin 414 any more, the third spring 413 stretches to rebound and reset the positioning pin 414, and the baffle plate 204 on the conveying trolley 200 is clamped in the blocking positioning space 412 by the positioning pin 414, so that the shaking on the conveying trolley 200 can be prevented, and the positioning stability is ensured.

In order to enable the baffle 204 on the conveying trolley 200 to smoothly enter the blocking positioning space 412, preferably, the upper end face of the positioning pin 414 protruding from the outer peripheral surface of the rotating shaft 406 presents an upward slope along the running direction of the conveying trolley 200, which is beneficial for gradually pressing the positioning pin 414 into the second blind hole 407 while the baffle 204 of the conveying trolley 200 runs.

Further, the second blind hole 407 is stepped, the stepped second blind hole 407 includes a small diameter hole 408 with a smaller diameter and a large diameter hole 409 with a larger diameter from the bottom wall to the opening, the third spring 413 is telescopically arranged in the small diameter hole 408, the positioning pin 414 is movably arranged in the large diameter hole 409, and the positioning pin 414 abuts against a step surface between the small diameter hole 408 and the large diameter hole 409, so that a limiting effect can be achieved on the action of retracting the positioning pin 414 into the second blind hole 407.

Further, in the present embodiment, the upper end of the positioning pin 414 protruding from the outer peripheral surface of the rotating shaft 406 has two vertically opposite side surfaces along the axial direction of the rotating shaft 406, and a limiting block 415 is disposed on one side of the positioning pin 414 away from the first baffle wheel 410 and is in mating connection with the side surfaces, so that the positioning pin 414 can be prevented from rotating.

In addition, in this embodiment, a connection block 424 is respectively provided at both ends of the support plate 401, and the connection block 424 is used for being connected with the body 100 of the stacking conveyor of this embodiment, so as to mount the blocking positioning device 400 of this embodiment on the body 100 of the stacking conveyor.

As shown in fig. 9, rollers 201 are respectively disposed at two ends of the conveying trolley 200 in the present embodiment, the rollers 201 are used for supporting on the guide rail 102, and the rollers 201 can run along the guide rail 102. Preferably, two rollers 201 may be disposed at both ends of the conveying trolley 200, and the two rollers 201 are spaced along the extending direction of the guide rail 102 and cooperate with the guide rail 102, so that the supporting and guiding effects of the guide rail 102 on the conveying trolley 200 can be enhanced. The hysteresis damper 205 is installed in the middle of the conveying trolley 200, and the driving sprocket 203 is installed on the main shaft 206 of the hysteresis damper 205, and the driving sprocket 203 is used for being meshed with the driving chain 101. When the conveying trolley 200 of the embodiment is mounted on the guide rails 102, the conveying trolley 200 is transversely placed between the two guide rails 102, rollers 201 at two ends of the conveying trolley 200 are supported on the corresponding guide rails 102, and meanwhile, a transmission chain wheel 203 in the middle of the conveying trolley 200 is meshed with the transmission chain 101. Since the driving sprocket 203 is mounted on the main shaft 206 of the hysteresis damper 205, the hysteresis damper 205 can provide a damping force for the rotation of the driving sprocket 203, and the damping force can prevent the driving sprocket 203 from rotating when the driving chain 101 moves circularly, so that the driving sprocket 203 can move along with the driving chain 101, thereby driving the conveying trolley 200 to move along with it, and further driving the roller 201 to move along the guide rail 102, so as to realize the integral operation of the conveying trolley 200. When the conveying trolley 200 moves to the pause station, the blocking positioning device 400 blocks the conveying trolley 200 to prevent the conveying trolley from continuing to move, and at the moment, the conveying trolley 200 is subjected to the blocking force of the blocking positioning device 400 to exceed the damping force of the hysteresis damper 205 acting on the transmission chain wheel 203, so that the transmission chain wheel 203 overcomes the damping force and rotates under the action of the transmission chain 101 and does not move along with the transmission chain 101, and the conveying trolley 200 also stops moving immediately, thereby realizing the pause operation of the conveying trolley 200. Therefore, the conveying trolley 200 of the embodiment can completely avoid friction damage of the driving sprocket 203 in the working process, can prolong the service life of the conveying trolley, greatly reduce the tool replacement frequency, save the labor time and reduce the maintenance replacement cost.

Preferably, as shown in fig. 10, in the present embodiment, the drive sprocket 203 is supported on a drive sprocket shaft 207, and the drive sprocket shaft 207 is connected to a main shaft 206 of the hysteresis damper 205. The drive sprocket 203 is fixedly mounted on the drive sprocket shaft 207, and the damping force provided by the hysteresis damper 205 directly acts on the drive sprocket shaft 207, and the rotation of the drive sprocket 203 is controlled by controlling the rotation of the drive sprocket shaft 207. In this embodiment, the drive sprocket 203 is keyed to the drive sprocket shaft 207.

To ensure that a sufficient damping force is provided to the drive sprocket 203, in this embodiment, the two ends of the drive sprocket shaft 207 are preferably connected to one hysteresis damper 205, and the two hysteresis dampers 205 together provide a damping force to one drive sprocket 203, so that the reliability of the operation of the conveying trolley 200 can be ensured.

In order to enhance the stability of the overall structure of the conveying trolley 200, preferably, in this embodiment, the conveying trolley 200 is provided with a fixing piece 209, the fixing piece 209 is provided with a third through hole 210, and the connection part of the main shaft 206 of the hysteresis damper 205 and the transmission chain wheel shaft 207 is supported in the third through hole 210 of the fixing piece 209, so that the connection strength of the hysteresis damper 205 and the transmission chain wheel shaft 207 can be increased, and the reliability and stability of the connection of the hysteresis damper 205 and the transmission chain wheel shaft 207 can be ensured. For clarity, only one end of drive sprocket shaft 207 is shown in fig. 2 and 3 as mated with fastener 209. In practice, a corresponding fixing element 209 may be provided at the connection of the main shaft 206 and the drive sprocket shaft 207 of each hysteresis damper 205.

Further, in this embodiment, a mounting hole 208 is formed on an end surface of the drive sprocket shaft 207, and the main shaft 206 of the hysteresis damper 205 is connected to the mounting hole 208 of the drive sprocket shaft 207, that is, the main shaft 206 of the hysteresis damper 205 extends into the mounting hole 208 of the drive sprocket shaft 207 and is connected to the mounting hole 208 in a matching manner. A second bushing 211 is disposed within the third bore 210 of the mounting member 209 and the end of the drive sprocket shaft 207 mates with the second bushing 211, i.e., the end of the drive sprocket shaft 207 is received within the second bushing 211. Thereby, the connection of the main shaft 206 of the hysteresis damper 205 with the drive sprocket shaft 207 and the supporting fixation of the connection of the main shaft 206 of the hysteresis damper 205 with the drive sprocket shaft 207 in the third through hole 210 of the fixture 209 are achieved.

To increase the stability of the transmission, it is preferable that the transmission sprocket 203 in the present embodiment is provided with two transmission sprockets 203 spaced apart in the direction in which the transmission chain 101 extends. Both driving sprockets 203 are engaged with the driving chain 101, whereby the driving force can be increased, ensuring smooth running of the transporting carriage 200. In this embodiment, two ends of two driving sprockets 203 are connected to one hysteresis damper 205, and a corresponding fixing member 209 is provided at the connection between the main shaft 206 of each hysteresis damper 205 and the driving sprocket shaft 207. Preferably, the two fixing members 209 located on the same side of the transmission chain 101 may be provided as a single piece, which may further increase the compactness and stability of the overall structure of the transfer cart 200.

In summary, in the stacking conveyor of this embodiment, through the matching and clamping connection between the clamping block 202 on the conveying trolley 200 and the clamping unit 302 on the head wheel 301 of the turning device 300, the clamping of the clamping block 202 by the clamping unit 302 is ensured by the self elastic forces of the two elastic clamping assemblies 304 in the clamping unit 302, so that the head wheel 301 and the conveying trolley 200 can synchronously run and turn over, and the conveying trolley 200 can be ensured to accurately and stably turn over and run according to the turning route when the turning area 103 of the guide rail 102 turns over and turns over. According to the blocking and positioning device 400 of the accumulation conveyor, two blocking and positioning mechanisms 403 are synchronously driven to move through one bidirectional telescopic rod 416, so that the two blocking and positioning mechanisms 403 are synchronously switched between the first station and the second station, positioning and releasing of the conveying trolley 200 are realized, stable and accurate blocking and positioning of the conveying trolley 200 can be ensured, the occupied position space is small, the structure is more compact, the stability of the blocking and positioning device 400 in working is enhanced, and the blocking and positioning device has the advantages of simple and reasonable structural design and safe and reliable performance. In the conveying trolley 200 of the accumulation conveyor of the embodiment, the driving sprocket 203 is arranged on the main shaft 206 of the hysteresis damper 205, the hysteresis damper 205 can provide damping force for the rotation of the driving sprocket 203, and when the driving chain 101 moves circularly, the damping force can prevent the driving sprocket 203 from rotating, so that the driving sprocket 203 can move along with the driving chain 101, thereby driving the conveying trolley 200 to move; when the conveying trolley 200 moves to the pause station to be blocked, the blocking force of the conveying trolley 200 exceeds the damping force of the hysteresis damper 205 acting on the driving sprocket 203, so that the driving sprocket 203 overcomes the damping force and rotates under the action of the driving chain 101 and does not move along with the driving chain 101, and the conveying trolley 200 also stops moving immediately. Therefore, the conveying trolley 200 of the embodiment can completely avoid friction damage of the driving sprocket 203 in the working process, can prolong the service life of the conveying trolley, greatly reduce the tool replacement frequency, save the labor time and reduce the maintenance replacement cost.

The foregoing is merely a preferred embodiment of the present invention, and it should be noted that modifications and substitutions can be made by those skilled in the art without departing from the technical principles of the present invention, and these modifications and substitutions should also be considered as being within the scope of the present invention.

Claims

1. The utility model provides an accumulation conveyor which is characterized by, includes fuselage (100), travelling bogie (200), turning device (300) and blocks positioner (400), be equipped with drive chain (101) on fuselage (100), drive sprocket (105) of drive chain (101) circulation operation and with drive chain (101) locate guide rail (102) of drive chain (101) both sides in parallel, travelling bogie (200) are supported on guide rail (102) through running roller (201) and can follow under the drive of drive chain (101) guide rail (102), block positioner (400) are used for realizing travelling bogie (200) location on guide rail (102); the turnover device (300) comprises a head wheel (301) rotatably arranged in a turnover area (103) of the guide rail (102), a plurality of buckling units (302) are uniformly arranged on the outer circumference of the head wheel (301), each buckling unit (302) comprises two first blind holes (303) which are circumferentially arranged on the outer circumference of the head wheel (301) at intervals, two elastic clamping assemblies (304) which are respectively arranged in the two first blind holes (303) and protrude out of the outer circumference of the head wheel (301), and a clamping space (305) which is formed between the two elastic clamping assemblies (304), the elastic clamping assemblies (304) can stretch along the radial direction of the head wheel (301), and a clamping block (202) which can be clamped and positioned in the clamping space (305) is arranged on the conveying trolley (200); when the conveying trolley (200) moves to the overturning area (103) along the guide rail (102), the clamping block (202) on the conveying trolley (200) is in contact with one clamping unit (302) on the head wheel (301), and one elastic clamping assembly (304) in the clamping unit (302) is compressed, so that the elastic clamping assembly (304) is compressed into a first blind hole (303) along the radial direction of the head wheel (301), and the clamping block (202) enters the clamping space (305); after the clamping block (202) enters the clamping space (305), the elastic clamping assembly (304) compressed into the first blind hole (303) automatically rebounds and stretches due to the disappearance of external force acted on the clamping block (202), so that the clamping block (202) is clamped and positioned in the clamping space (305) together with the other elastic clamping assembly (304), and the clamping of the clamping block (202) by the clamping unit (302) is ensured by the self elastic force of the two elastic clamping assemblies (304).

2. The stacking conveyor according to claim 1, wherein two clamping blocks (202) are arranged on the conveying trolley (200) at intervals along the running direction of the conveying trolley (200), and the two clamping blocks (202) can be simultaneously and respectively clamped and positioned in the clamping spaces (305) of two adjacent clamping units (302).

3. The accumulation conveyor as in claim 1 or 2 in which the elastic clamping assembly (304) comprises a first spring (306) and a telescoping plunger (307), one end of the first spring (306) being connected to the bottom wall of the first blind hole (303) and the other end being connected to one end of the telescoping plunger (307), the other end of the telescoping plunger (307) protruding beyond the outer circumference of the head wheel (301).

4. A stacking conveyor as claimed in claim 3, wherein the telescopic plunger (307) protrudes from an end surface of the outer circumferential surface of the head wheel (301) to form an arc surface matched with the outer circumferential surface of the head wheel (301).

5. A stacking conveyor according to claim 3, wherein a plurality of notches (311) corresponding to the buckling units (302) one by one are arranged on the outer circumference of the head wheel (301), and two first blind holes (303) of the buckling units (302) are formed in the bottom wall of the notches (311); a base (313) is arranged in the gap (311), the base (313) comprises a horizontal part (314) which is attached to the bottom wall of the gap (311) and a vertical part (315) which extends vertically from the middle part of the horizontal part (314), one end face of the vertical part (315) away from the horizontal part (14) is positioned on the circumference of the outer circumference of the head wheel (301), two sliding spaces (312) are formed between the vertical part (315) and two side walls of the gap (311), and a first through hole (316) which corresponds to and is communicated with the first blind hole (303) is formed in the horizontal part (314); the telescopic plunger (307) comprises a telescopic column (308) and a sliding plug (309), one end of the telescopic column (308) stretches into the first blind hole (303) through the first through hole (316) to be connected with the first spring (306), the other end of the telescopic column is connected with the sliding plug (309), and the sliding plug (309) is slidably arranged in the sliding space (312) and protrudes out of the vertical portion (315).

6. The accumulation conveyor as in claim 1 wherein two ends of the conveying trolley (200) are respectively provided with a baffle plate (204), the blocking positioning device (400) comprises a horizontally arranged support plate (401), a blocking positioning mechanism (403) is respectively arranged above the support plate (401) at the positions corresponding to the two baffle plates (204), and the blocking positioning mechanism (403) has a first station for clamping the baffle plates (204) to stop the conveying trolley (200) and a second station for releasing the baffle plates (204) to continue the conveying trolley (200); the two-way telescopic rods (416) are arranged below the support plates (401) at positions between the two blocking and positioning mechanisms (403), and two ends of each two-way telescopic rod (416) are respectively connected with the two blocking and positioning mechanisms (403) through a connecting rod assembly and drive the two blocking and positioning mechanisms (403) to synchronously switch between the first station and the second station.

7. The accumulation conveyor as in claim 6 wherein the linkage assembly comprises a horizontally disposed drive rod (420) and an obliquely disposed reversing rod (421), one end of the drive rod (420) being connected to a movable end of the reversing rod (416) and the other end being hinged to one end of the reversing rod (421), the other end of the reversing rod (421) being hinged to the blocking positioning mechanism (403), the reversing rod (421) driving the reversing rod (421) to oscillate and the blocking positioning mechanism (403) to rotate between the first and second stations.

8. The accumulation conveyor as in claim 7 in which the drive link (420) is removably connected to the movable end of the bi-directional telescoping rod (416).

9. The accumulation conveyor as in claim 6 wherein a second through hole (402) is provided above the support plate (401) at positions corresponding to the two blocking pieces (204), the blocking positioning mechanism (403) comprises a support (404), a rotating shaft (406), a first blocking wheel (410), a second blocking wheel (411) and an elastic positioning assembly, the rotating shaft (406) is rotatably provided on the support (404) and above the second through hole (402), and the axis of the rotating shaft (406) is parallel to the running direction of the conveying trolley (200), and the connecting rod assembly is hinged with the rotating shaft (406); the first baffle wheel (410) and the second baffle wheel (411) are axially spaced and are arranged on the rotating shaft (406) in a staggered manner along the circumferential direction; the elastic positioning component can be arranged on the rotating shaft (406) in a telescopic manner along the radial direction of the rotating shaft (406) and is positioned between the first baffle wheel (410) and the second baffle wheel (411), the elastic positioning component and the first baffle wheel (410) are positioned on the same axial plane of the rotating shaft (406) and form a blocking positioning space (412) with the first baffle wheel (410), and the baffle sheet (204) on the conveying trolley (200) can be clamped and positioned in the blocking positioning space (412).

10. The accumulation conveyor as in claim 1 in which a hysteresis damper (205) is mounted in the middle of the conveyor trolley (200), the main shaft (206) of the hysteresis damper (205) being mounted with a drive sprocket (203) that meshes with the drive chain (101).