CN114803307B

CN114803307B - Circulation elevator

Info

Publication number: CN114803307B
Application number: CN202210543464.1A
Authority: CN
Inventors: 陈海锋
Original assignee: Zhejiang Risun Intelligent Technology Co ltd
Current assignee: Zhejiang Risun Intelligent Technology Co ltd
Priority date: 2022-05-19
Filing date: 2022-05-19
Publication date: 2023-12-05
Anticipated expiration: 2042-05-19
Also published as: CN114803307A

Abstract

The invention provides a circulating elevator, which is provided with a goods conveying rack on a chain, wherein the elevator comprises an automatic upper rack section and an automatic lower rack section, the automatic upper rack section is provided with an automatic upper rack mechanism, the chain drives the goods conveying rack to take away a carrier from the automatic upper rack mechanism, the automatic lower rack section is provided with a second chain wheel, the chain runs around the second chain wheel, and the automatic lower rack section is provided with an automatic lower rack mechanism; the automatic unloading mechanism comprises a connection rail, the input end of the connection rail is provided with a connection part, the connection part is positioned on a channel of the delivery frame running from the highest point of the second sprocket to the descending section, the top end surface of the connection part is inclined downwards from the second sprocket to the connection rail, the highest point of the connection part is lower than the highest point of the second sprocket, and the height difference between the connection part and the connection part is greater than the height of the carrier hook bending part. The invention realizes automatic loading and unloading of the carrier without manual operation, and realizes automatic transfer of the carrier on different rails.

Description

Circulation elevator

Technical Field

The invention relates to the technical field of conveying, in particular to a circulating lifter.

Background

Currently, when conveying objects, inclined lifting devices are used to lift the objects to a high position, and then the objects are transferred to a conveying line rail. Such lifting devices occupy a large area and are not suitable for use in situations where there is a high demand for space, such as supermarkets, shops, etc. At this time, the vertical elevator with smaller occupied area becomes a better choice.

Chinese patent application 201610764045.5 discloses a vertical lift delivery system. The automatic feeding device comprises upright posts which are longitudinally distributed, wherein power circulation chains are longitudinally distributed along the trend of the upright posts at the upright posts, and one end of a feeding rack is fixedly connected to the power circulation chains; the center of stand is provided with a recess along the trend of stand, and power cycle chain installs in the recess. The carrier, such as a hanger, is manually hung on the delivery rack, and then lifted to the joint with the delivery line, and the hanger on the delivery rack automatically slides into the connection rail of the delivery line. Therefore, the vertical lift cannot be used for automatically loading the carrier. The upper portion of the goods delivery rack is provided with a movable tongue, the lower edge of one side of the movable tongue, which is close to the upright post, is provided with a group of movable rollers, the upper portion of the goods delivery rack, which is close to the suspension end, is provided with a goods delivery nozzle, the lower edge of one end of the goods delivery nozzle is connected with the goods delivery rack through a goods delivery nozzle rotating shaft, one end of the goods delivery nozzle is close to the upper edge to form an impact position, the most other end of the goods delivery nozzle is in a suspended shape, the goods delivery nozzle swings by taking the goods delivery nozzle rotating shaft as a circle center, one end of the goods delivery nozzle is connected with a reset spring, a positioning slope block is arranged above the upright post, the positioning slope block protrudes out of the upright post, the inner side of the positioning slope block is connected with the upright post, and the lower edge of the outer side forms an inclined plane. The goods delivery frame is lifted and meets the positioning slope piece, the slope pushes the movable tongue to stretch out forwards through the roller on the movable tongue, the rear end of the goods delivery mouth is pushed to enable the goods delivery mouth to rotate around the rotating shaft, and when the slope is toppled, the goods delivery mouth is turned over to pour out a container and just enters the inlet of the intelligent sorting conveying line. The vertical hoisting machine sends the carrier on the goods conveying rack into the conveying line through a triggering mechanism, the structure of the goods conveying rack is complex, and the assembly is difficult.

Disclosure of Invention

In order to realize automatic transfer of the carrier on different rails, the invention provides the circulating elevator which realizes automatic loading and unloading of the carrier without manual operation.

The invention provides a circulating elevator, which comprises a chain, wherein a goods conveying rack is arranged on the chain, and is characterized in that: the lifter comprises an automatic upper frame section and an automatic lower frame section, wherein the automatic upper frame section is provided with an automatic upper frame mechanism, the chain drives the goods conveying frame to take away the carrier from the automatic upper frame mechanism, the automatic lower frame section is provided with a second chain wheel, the chain runs around the second chain wheel, and the automatic lower frame section is provided with an automatic lower frame mechanism;

the automatic unloading mechanism comprises a connection rail, the input end of the connection rail is provided with a connection part, the connection part is positioned on a channel of the delivery frame running from the highest point of the second sprocket to the descending section, the top end surface of the connection part is inclined downwards from the second sprocket to the connection rail, the highest point of the connection part is lower than the highest point of the second sprocket, and the height difference between the connection part and the connection part is greater than the height of the bending part of the carrier hook; when the delivery rack is operated to the automatic unloading section, the carrier on the delivery rack is hung on the connecting part.

According to the invention, the carrier is taken away from the automatic loading mechanism by utilizing the movable goods conveying frame, so that the automatic loading is realized, when the goods conveying frame moves to the highest point of the second chain wheel with the carrier, the carrier hook can cross the cross-over part due to the design of the height of the bending part of the carrier hook and the height difference between the cross-over part and the second chain wheel, and after the carrier hook crosses the cross-over part, the carrier hook can be hung on the cross-over part along with the descending of the goods conveying frame, and the carrier slides downwards by virtue of gravity, so that the automatic unloading is realized.

The connecting part can be integrally formed with the connecting rail to form a part of the connecting rail, the connecting part can also be in split design, the connecting part is a connecting plate arranged at the input end of the connecting rail, the split design is adopted to save cost, the connecting rail is provided with a track with a general structure, and the connecting plate is arranged at the end part of the connecting rail, so that the connecting part can be better applied to various scenes, and particularly, the improvement of the existing elevator is realized. One end of the cross plate on the other side is arranged on the frame below the chain wheel, and the other end of the cross plate is connected with the connecting rail, so that the mounting precision of the connecting rail can be improved.

Generally, the connecting plate is narrower, and the connecting rail is wider, so that the carrier hook can conveniently move from the connecting plate to the connecting rail, and inclined surfaces are arranged on two sides of one end, connected with the connecting plate, of the connecting rail, so that ordered transition is realized.

The shape of the cross plate is not particularly limited in the present invention, as long as the bottom of the cross plate does not interfere with the carrier. In the preferred embodiment of the invention, the width of the cross plate in the up-down direction is made as wide as possible, so that the overall stability is improved, and a carrier avoiding groove for avoiding the carrier is required to be arranged at the bottom of the cross plate, so that interference is avoided.

Preferably, the cross plate passes through the frame from the lower part of the second sprocket and is provided with a sprocket avoiding notch for avoiding the second sprocket.

Preferably, the connecting rail is provided with a slot, and the connecting plate is inserted into the slot, so that the connecting plate and the slot are convenient to butt-joint and install.

Preferably, the connection rail is obliquely arranged, and a blocking point is arranged on the connection rail.

The automatic loading mechanism comprises a guide rail, wherein the guide rail is inclined downwards towards the direction of the output end of the guide rail, a baffle plate is rotatably arranged at the output end of the guide rail, a protrusion on the baffle plate extends out of the upper surface of the guide rail, the free end of the baffle plate is positioned in a descending channel of the delivery frame, when the delivery frame moves downwards, the delivery frame pushes the baffle plate to rotate downwards, so that the protrusion on the baffle plate is flush with or lower than the upper surface of the guide rail, a carrier on the baffle plate falls onto the delivery frame, and a reset spring for promoting the baffle plate to reset is further arranged on the baffle plate.

The carrier is blocked by the bulges on the baffle plate on the inclined guide rail, when the delivery rack moves downwards, the carrier is pushed to rotate downwards by abutting against the baffle plate, the bulges on the baffle plate release the blocking of the carrier and release the carrier, and the carrier slides downwards on the inclined guide rail by means of gravity and falls onto the delivery rack, so that automatic loading is realized.

In order to further improve stability and ensure that the carrier can accurately fall onto the delivery rack in the falling process, the output end of the guide rail is provided with the extension part, the extension part is provided with the avoidance groove for the delivery rack to pass through, after the carrier is placed by the baffle plate, the carrier moves along the extension part, and the delivery rack can continuously move downwards, so that the delivery rack can move to the lower part of the carrier, and after the carrier moves to the free end of the extension part and is separated from the extension part, the carrier can stably fall onto the delivery rack.

In order to enable the delivery frame to better push the baffle, the free end of the baffle is provided with the connecting block, the delivery frame is used for pushing the connecting block to replace the direct pushing of the baffle, and the contact surface is increased. The rear end of the avoidance groove is provided with a fixed block, the baffle is rotatably arranged on the fixed block, the free end of the baffle is provided with a connecting block, and the reset spring is respectively connected with the connecting block and the fixed block; the delivery frame pushes the connecting block to drive the baffle to rotate.

The baffle plate is provided with a limiting protrusion which limits the rotating stroke of the baffle plate when the baffle plate is reset, so that the baffle plate is prevented from rebounding excessively when the baffle plate is reset; the extension part can be further provided with a limiting groove, the side part of the connecting block is provided with a limiting piece, the limiting piece is inserted into the limiting groove, and the limiting piece and the limiting groove are matched to limit the rotating stroke.

Preferably, the number of the baffles is 2, and the baffles are respectively arranged at two sides of the fixed block and the connecting block.

The invention has a first sprocket on the automatic loading section, around which the chain runs; the automatic loading mechanism comprises a guide rail, an avoidance groove for the passing of the delivery goods shelf is formed in the output end of the guide rail, a blocking point is formed in the guide rail at the avoidance groove, and when the delivery goods shelf moves upwards, the delivery goods shelf takes away the carrier stopped at the blocking point; the position of the guide rail is lower than that of the first sprocket, the carrier comprises a vertical part and a carrier body, and the vertical distance from the blocking point to the highest point of the first sprocket is smaller than or equal to the height of the vertical part of the carrier.

The guide rail is arranged on the lifting section of the chain, and the carrier on the guide rail can be directly taken away by the lifting carrier. The invention skillfully utilizes the relation between the distance from the blocking point to the highest point of the first chain wheel and the height of the vertical part of the carrier, thereby avoiding interference. If the distance is greater than the height of the vertical part of the carrier, the carrier body collides with the lower part of the guide rail in the lifting process and needs to be lifted continuously, the interference of the carrier body and the guide rail is seriously incapable of running, the distance is equal to the height of the vertical part of the carrier, the carrier enters a descending stage after collision although collision occurs, the carrier descends along with the carrier, the integral running is not influenced, and the distance is preferably smaller than the height of the vertical part of the carrier, and the carrier cannot collide at the moment.

Preferably, the output end of the guide rail is provided with an extension part, the avoidance groove and the baffle point are arranged on the extension part, the extension part can be designed integrally with the guide rail, and the extension part can also be designed in a split mode, preferably in a split mode, so that the structure of the guide rail is not changed.

Preferably, 1 blocking point is respectively arranged at two sides of the avoidance groove.

In order to avoid the carrier to touch the guide rail during the descending section, the descending section of the chain is pulled to be obliquely arranged towards the outer side of the first chain wheel at the first chain wheel, and the carrier is driven by the chain to obliquely descend.

Preferably, the guide rail is an inclined guide rail, and is inclined downwards towards the output end direction of the guide rail, and the carrier can be stopped by the gravity slideway.

Preferably, a release mechanism is arranged on the guide rail, the release mechanism is provided with a second carrier detection device, and the second carrier detection device is used for detecting whether carriers exist at the release mechanism.

Preferably, the chain is installed in a chain guide rail, and limiting blocks are arranged on two sides of the chain guide rail corresponding to the output end of the guide rail.

Preferably, the limiting block is mounted on the chain guide rail through a connecting plate; the guide rail is installed on a first support piece, and the first support piece is connected with the connecting plate.

Preferably, the carrier is perpendicular to the surface of the sprocket around which the chain is looped.

Preferably, the outer circumference of the delivery frame is provided with an annular groove, or a plurality of annular grooves are arranged at intervals along the length direction of the delivery frame. The delivery frame is fixed on the chain, can not rotate relatively, when the chain arrives at the sprocket department and turns to, produces relative rotation between the couple of carrier and the delivery frame, owing to be the groove of annular structure, the couple is in the inslot all the time, can not drop.

According to the invention, the carrier can be transferred between different tracks by arranging the automatic loading mechanism and the automatic unloading mechanism. The automatic loading mechanism and the automatic unloading mechanism can adopt a mode of being high and low, so that the carrier is lifted from a low position to a high position, or is transported from the high position to the low position, and the carrier transfer between the tracks with the same height can be realized at the same height.

Drawings

FIG. 1 is a schematic diagram of the structure of the present invention;

FIG. 2 is a schematic view of a first mechanism of the present invention;

FIG. 3 is a side view of the first racking mechanism of the present invention;

FIG. 4 is a schematic view of the structure of the chain guide at the upper frame of the present invention;

FIG. 5 is a schematic view of the structure of the endless chain and the pallet feeding device of the present invention;

FIG. 6 is a schematic view of the components of the first angled rail of the racking mechanism of the present invention;

FIG. 7 is an assembly view of the angled rail extension and the stop plate of the first racking mechanism of the present invention;

FIG. 8 is an exploded view of FIG. 7 in accordance with the present invention;

FIG. 9 is a schematic view of the lower frame mechanism of the present invention;

FIG. 10 is a state diagram of the carrier of the racking mechanism of the present invention when it is running to the highest point of the arc segment;

FIG. 11 is a view of the lower rack mechanism carrier of the present invention when it is supported by the cross plate;

FIG. 12 is a view of the carrier of the racking mechanism of the present invention when the carrier is separated from the carrier by the carrier of the racking mechanism supported by the transfer plate;

FIG. 13 is a schematic view of the structure of the splice plate of the present invention;

FIG. 14 is a schematic view of the structure of the inclined docking rail of the present invention;

FIG. 15 is a schematic view of a second embodiment of the present invention;

FIG. 16 is a front view of FIG. 15 in accordance with the present invention;

FIG. 17 is a schematic view of the components of the angled rail of the second racking mechanism of the present invention;

fig. 18 is a schematic structural view of the carrier of the present invention.

In the figure: 1-a frame; 2-a chain; 3-sprocket; 3.1-a first sprocket; 3.2-a second sprocket; 4-delivering the goods shelf; 4.1-annular grooves; 5-a chain guide; 6-wear strips; 7-limiting blocks; 8-connecting plates;

10-an automatic racking mechanism; 11-a guide rail; 11.1-extensions; 11.2-blocking point; 11.3-limit grooves; 12-baffle; 13-a return spring; 14-fixing blocks; 14.1-pin shafts; 14.2-limit protrusions; 15-connecting blocks; 15.1-limiting parts; 16-a first carrier detection device; 17-release mechanism; 18-a second carrier detection device; 19-a first support;

20-an automatic unloading mechanism; 21-a crossover plate; 21.1-sprocket relief notch; 21.2-top end face; 21.3-a carrier avoidance slot; 22-connecting rails; 22.1-slots; 22.2-blocking point; 22.3-inclined plane; 23-full detection device; 24-a second support;

30-a carrier; 30.1-vertical; 30.2-carrier body.

Detailed Description

As shown in fig. 1, the present invention provides a circulating elevator capable of automatically loading and unloading. Comprises a frame 1 and a chain 2. The frame 1 is provided with a plurality of chain wheels 3 (the chain wheels comprise a driving chain wheel, a driven chain wheel, a turning chain wheel and a tensioning chain wheel), one chain wheel 3 is connected with a motor, and the chain 2 is wound on the chain wheel 3 and driven by the chain wheel to do circular motion. The chain 2 in fig. 1 is not only distributed vertically but also laterally under the guidance of the sprocket 3.

As shown in fig. 5, the chain 2 is provided with a carrier rack 4, and the carrier rack 4 is perpendicular to the plane of the sprocket, so that the carrier will not topple over on the carrier rack, whether it is a lifting section or a lowering section. The outer periphery of the goods conveying rack 4 is provided with annular grooves 4.1 at intervals along the length direction, and hooks of the carrier are hung in the annular grooves 4.1 to avoid falling off of the carrier.

As shown in fig. 1 and 4, the chain guide 5 is further included, a wear strip 6 is provided in the chain guide 5, and the vertical chain 2 is provided in the wear strip 6.

As shown in fig. 1, the circulating elevator is provided with an automatic loading mechanism 10 and an automatic unloading mechanism 20 at a high position and an automatic loading mechanism at a low position, so that the carrier is transferred from the high position to the low position. The automatic loading mechanism can also be arranged at the low position, and the automatic unloading mechanism is arranged at the high position, so that the carrier can be transferred from the low position to the high position. The automatic loading mechanism and the automatic unloading mechanism can be arranged at the same height, so that the carrier can be transferred between different rails at the same height.

Example 1:

as shown in fig. 2 and 3, the automatic loading mechanism is arranged at the descending section, and no specific position is required between the automatic loading mechanism and the chain wheel.

The guide rail 11 is obliquely arranged and is inclined downwards towards the direction of the output end of the guide rail 11, the baffle 12 is rotatably arranged at the output end of the guide rail 11, the middle part of the baffle 12 is provided with a bulge, and the bulge extends out of the guide rail 11, so that the carrier is blocked. The free end of the baffle 12 extends towards the chain 2 and is located in the lowering channel of the conveyor rack 4. The carrier 4 moves downward, the free end of the hanging end abuts against the free end of the baffle 12, so that the baffle 12 is caused to rotate downward, the protrusions of the baffle 12 are hidden in the guide rail 11 (the protrusions are flush with or lower than the surface of the inclined guide rail), and the carrier is released and slides onto the carrier 4 by gravity. A return spring 13 is arranged between the guide rail 11 and the baffle plate 12, and after the delivery frame 4 continues to move downwards and is separated from the baffle plate 12, the baffle plate 12 is reset by means of the return spring 13, and the protrusions of the baffle plate extend out of the inclined guide rail to block the carrier.

Specifically, as shown in fig. 6, 7 and 8, the output end of the guide rail 11 is connected with an extension portion 11.1, and the extension portion and the guide rail 11 may be integral or separate. The extending part 11.1 is provided with a vertically penetrating avoiding groove, a fixed block 14 is arranged in the avoiding groove, one ends of two baffles 12 are rotatably arranged at two sides of the fixed block 14 through pin shafts 14.1, free ends of the two baffles 12 are arranged at two sides of a connecting block 15 through screws (namely limiting parts 15.1), and a reset spring 13 is connected between the fixed block 14 and the connecting block 15. When the goods conveying rack 4 moves downwards, the goods conveying rack passes through the avoiding groove and is in contact with the connecting block 15, so that the baffle is driven to rotate. Limiting protrusions 14.2 are arranged on two sides of the fixed block 14, the baffle 12 continuously rotates upwards under the elastic force of the reset spring 13, and the limiting protrusions 14.2 limit the rotating stroke of the baffle 12 during reset. The extension part is provided with a limit groove 11.3, the end part of the limit piece 15.1 is inserted into the limit groove 11.3, and the limit groove 11.3 is matched with the limit piece 15.1 to play a role in limiting the rotating stroke of the baffle 12 during reset. It should be noted that, the extension portion shown in fig. 8 forms 2 plate structures on two sides of the avoidance groove, in some application scenarios, the extension portion may have only one side plate structure, when only one side plate structure is provided, the extension portion is staggered with the moving channel of the goods delivery rack, so that the goods delivery rack is not blocked, and the avoidance groove through which the goods delivery rack passes in the invention is naturally formed.

As shown in fig. 6, a first carrier detecting device 16 is installed at the position where the barrier 12 blocks the carrier, and is used for detecting whether the carrier stops at the barrier 12, a release mechanism 17 is installed at the upstream of the guide rail 5, and a second carrier detecting device 18 is installed at the position of the release mechanism 17, and is used for detecting whether the carrier stops at the position of the release mechanism 17. When the first carrier detecting device 16 detects that no carrier is at the blocking position of the baffle plate, and the second carrier detecting device 18 detects that a carrier is at the releasing mechanism 17, the releasing mechanism is controlled to release one carrier to the blocking position of the baffle plate. The first carrier detecting device 16 may not be provided, and when a carrier is present at the releasing mechanism 17, one carrier may be released to the protrusion of the baffle 12 at intervals of time, and the released interval time may be equal to or longer than the interval between the two racks divided by the running speed of the chain.

As shown in fig. 4, the limiting blocks 7 are arranged on the two sides of the shelf conveying channel at the upper shelf position, namely at the position corresponding to the output end of the guide rail 11, and are easy to swing when the clothes hanger is hung, and the limiting blocks play a role in protection. The stopper 7 is installed in chain guide 5 both sides through connecting plate 8, and guide rail 11 is installed on the first support piece 19 of L type, and first support piece 19 is connected with one of them connecting plate to improve assembly accuracy and whole rigidity.

As shown in fig. 9, 10, 11, 12 and 13, the automatic unloading mechanism is arranged at the junction of the highest point of the second sprocket 3.2 and the descending section, and is positioned on a channel of the conveying rack running from the highest point of the second sprocket 3.2 to the descending section, and the junction plate 21 is positioned below the highest point of the second sprocket 3.2. The automatic unloading mechanism comprises a cross plate 21 arranged below the highest point of the second chain wheel 3.2, one end of the cross plate 21 is connected with the frame 1, and the other end is connected with a connecting rail 22. One end of the connecting plate 21 connected with the frame 1 passes through the lower part of the second sprocket wheel 3.2, and a sprocket wheel avoiding notch 21.1 for avoiding the sprocket wheel is arranged on the connecting plate. The top end of the cross plate 21 is provided with a top end surface 21.2 which is inclined downwards from the second chain wheel 3.2 to the connecting rail, and the lower end of the cross plate 21 is provided with a carrier avoiding groove 21.3 for avoiding the carrier. The highest point of the cross plate 21 is lower than the highest point of the second sprocket 3.2, and the height difference between the two points is required to be greater than the height h1 of the curved portion of the carrier hook (as shown in fig. 18, the height of the curved portion refers to the height difference from the end point (free end) of the carrier hook to the highest point of the carrier hook). As shown in fig. 10, the height difference between the two points is greater than the height of the curved portion of the carrier hook, so that the carrier hook can pass over the top end of the intersection plate 21 to smoothly complete the intersection. In connection with fig. 10, 11 and 12, when the carrier 4 runs along the downward section of the sprocket wheel, at the high point of the second sprocket wheel 3.2, the carrier hook passes over the top end of the cross plate 21, so that the carrier hook is positioned above the cross plate 21, the carrier 4 continues to run downwards, the carrier hook contacts the top end of the cross plate 21, at this time, the carrier hook is supported by the cross plate 1, the carrier continues to run downwards and separate from the carrier hook, and the carrier slides onto the connecting rail 22 along the downward inclined top end surface of the cross plate 21.

As shown in fig. 14, the connection end of the connection rail 22 and the cross plate 21 is provided with a vertical slot 22.1, and the other end of the cross plate 21 is inserted into the slot 22.1. Inclined surfaces are arranged on two sides of one end of the connecting rail 22 connected with the connecting plate 21. The connection rail 22 is arranged obliquely, and a blocking point 22.2 is arranged at the low point of the oblique connection rail 22. The connection rail 22 is provided with a full detection device 23, and the full detection device 23 continuously detects signals to indicate that the connection rail is full of the carrier, so that the operation of the elevator should be stopped, and the carrier is prevented from being continuously downloaded.

The above-described cross plate 21 and the cross rail are designed as separate bodies, and the cross plate 21 may be a part of the cross rail, that is, the cross rail input end has a cross portion, and the structure of the cross portion is the same as that of the cross plate 21. The joint plate 8 may be omitted, and the end of the joint rail 5 may be a joint portion extending below the sprocket 3.

The connection rail 5 is mounted on an L-shaped second support 24, and the second support 24 is connected with the frame 1, thereby improving assembly accuracy and overall rigidity.

The inclined guide rail 11 and the inclined connection rail 22 can be connected with the guide rail of the horizontal conveying line, so that the transfer of the carriers on the guide rails of different horizontal conveying lines is realized.

Example 2:

the automatic racking mechanism of the present embodiment is the same as that of embodiment 1, and the automatic racking mechanism is different from embodiment 1.

As shown in fig. 15, 16 and 17, the automatic racking mechanism is located at the junction of the lifting section and the first sprocket 3.1, and the guide rail 11 is located lower than the first sprocket 3.1. The guide rail 11 faces the chain 2, the output end of the guide rail 11 is provided with a vertically penetrating avoidance groove, and one side or two sides of the avoidance groove are provided with blocking points 11.2 for blocking the carrier. The stop points 11.2 are located on both sides of the lifting channel of the conveyor rack 4. The goods delivering rack 4 moves upwards, and the suspension end passes through the avoiding groove from bottom to top, so that the carrier at the baffle point 11.2 is taken away and hung on the goods delivering rack 4.

In connection with fig. 16, 18, the vertical distance H from the stop point 11.2 to the highest point of the first sprocket 3.1 should be less than or equal to the height H2 of the vertical portion 30.1 of the carrier 30. If the two are equal, when the chain rotates to the highest point of the first chain wheel 3.1, the carrier body 30.2 hung on the delivery frame can touch the bottom of the guide rail, then the chain rotates to the descending section, and the carrier descends without affecting the whole operation. If H is less than the height H2, the carrier body will not touch the bottom of the guide rail when the chain rotates to the highest point of the first sprocket. Both the situations can avoid the interference between the carrier body and the guide rail to influence the operation when the carrier is lifted to the highest point of the first chain wheel. The carrier shown in fig. 18 is a hanger, the vertical part is a hanger rod which is commonly seen by people, the carrier body 30.2 is a hanger, and the carrier can also be a carrier with other structures such as a hanging basket and the like, which are not described one by one. As shown in fig. 16, in the descending section, the chain is inclined from the highest point of the first sprocket to the outside of the first sprocket, so that the chain is inclined downwards from the highest point, after the carrier is taken from the guide rail 11 by the delivery frame 4, the carrier moves downwards obliquely after passing through the highest point of the first sprocket, so that the carrier is far away from the guide rail 11, the carrier is prevented from continuing to move upwards to interfere with the guide rail, in fig. 16, the direction-changing sprocket is arranged in the position of the middle part of the chain, the chain 2 can wind on the direction-changing sprocket, the chain is pulled to the outside of the first sprocket 3.1 by the direction-changing sprocket wheel, and the chain 2 can move downwards obliquely.

Specifically, as shown in fig. 6, the output end of the guide rail 5 is connected with an extension portion 5.1, and the extension portion and the guide rail 5 may be integral or separate. The avoidance groove and the baffle point are arranged on the extension part 5.1. It should be noted that, the extension portion shown in fig. 6 forms 2 plate structures on two sides of the avoidance groove, in some application scenarios, the extension portion may have only one side plate structure, when only one side plate structure is provided, the extension portion is staggered with the moving channel of the goods delivery rack, so that the goods delivery rack is not blocked, and the avoidance groove through which the goods delivery rack passes in the invention is naturally formed.

As shown in fig. 17, the guide rail 11 is arranged obliquely, and the carrier can slide down to the stop point 11.2 by means of gravity. A release mechanism 17 is mounted upstream of the stop point 11.2, and a second carrier detection device 18 is mounted at the release mechanism 17 for detecting whether a carrier is present at the release mechanism 17. When the second carrier detecting device 18 detects that a carrier is located at the releasing mechanism 17, the releasing mechanism is controlled to release one carrier to the position of the blocking point 11.2 at intervals, and the release interval must be greater than or equal to the interval between two delivering racks divided by the running speed of the chain, wherein the carrier at the blocking point 11.2 is taken away by the delivering rack 4 when the carrier is released.

In combination with fig. 4, at the upper frame, namely, at the corresponding position of the output end of the guide rail 11, two sides of the goods conveying rack channel are provided with limiting blocks 7, the limiting blocks 7 are installed at two sides of the chain guide rail 5 through connecting plates 8, the guide rail 11 is installed on a first supporting piece 19 in an L shape, and the first supporting piece 19 is connected with one connecting plate, so that the assembly precision and the overall rigidity are improved.

Claims

1. The utility model provides a circulation lift, includes the chain, install on the chain and send goods shelves, its characterized in that: the lifter comprises an automatic upper frame section and an automatic lower frame section, wherein the automatic upper frame section is provided with an automatic upper frame mechanism, the chain drives the goods conveying frame to take away the carrier from the automatic upper frame mechanism, the automatic lower frame section is provided with a second chain wheel, the chain runs around the second chain wheel, and the automatic lower frame section is provided with an automatic lower frame mechanism;

the automatic unloading mechanism comprises a connection rail, the input end of the connection rail is provided with a connection part, the connection part is positioned on a channel of the delivery frame running from the highest point of the second sprocket to the descending section, the top end surface of the connection part is inclined downwards from the second sprocket to the connection rail, the highest point of the connection part is lower than the highest point of the second sprocket, and the height difference between the connection part and the connection part is greater than the height of the bending part of the carrier hook; when the delivery rack bypasses the top of the second chain wheel and moves to the automatic unloading section, the carrier on the delivery rack is hung on the connecting part.

2. The endless lift as recited in claim 1 wherein: the connecting part is a connecting plate arranged at the input end of the connecting rail.

3. The endless lift as recited in claim 2 wherein: inclined surfaces are arranged on two sides of one end, connected with the connecting plate, of the connecting rail.

4. A circulation lift as claimed in claim 2 or claim 3, wherein: the bottom of the intersecting plate is provided with a carrier avoiding groove for avoiding the carrier.

5. A circulation lift as claimed in claim 2 or claim 3, wherein: the cross plate passes through the second sprocket from the lower part and is arranged on the frame, and a sprocket avoiding notch for avoiding the second sprocket is arranged on the cross plate.

6. A circulation lift as claimed in claim 2 or claim 3, wherein: the connecting rail is provided with a slot, and the connecting plate is inserted into the slot.

7. The endless lift as recited in claim 1 wherein: the automatic loading mechanism comprises a guide rail, the guide rail is inclined downwards towards the direction of the output end of the guide rail, a baffle is rotatably arranged at the output end of the guide rail, a protrusion on the baffle protrudes out of the upper surface of the guide rail, the free end of the baffle is located in a descending channel of the delivery frame, the delivery frame moves downwards, the delivery frame pushes the baffle to rotate downwards, so that the protrusion on the baffle is flush with or lower than the upper surface of the guide rail, a carrier on the baffle falls onto the delivery frame, and a reset spring for promoting the baffle to reset is further arranged on the baffle.

8. The endless lift as recited in claim 7 wherein: the output end of the guide rail is provided with an extension part, and the extension part is provided with an avoidance groove for the goods delivery frame to pass through.

9. The endless lift as recited in claim 8 wherein: the rear end of the avoidance groove is provided with a fixed block, the baffle is rotatably arranged on the fixed block, the free end of the baffle is provided with a connecting block, and the reset spring is respectively connected with the connecting block and the fixed block; the delivery frame pushes the connecting block to drive the baffle to rotate.

10. The endless lift as recited in claim 9 wherein: the fixed block is provided with a limiting bulge for limiting the rotation stroke of the baffle during reset; and/or the extension part is provided with a limiting groove, and the side part of the connecting block is provided with a limiting piece which is inserted into the limiting groove.

11. The endless lift as recited in claim 9 wherein: the number of the baffles is 2, and the baffles are respectively arranged on two sides of the fixed block and the connecting block.

12. The endless lift as recited in claim 1 wherein: the automatic racking section has a first sprocket about which the chain runs; the automatic loading mechanism comprises a guide rail, an avoidance groove for the passing of the delivery goods shelf is formed in the output end of the guide rail, a blocking point is formed in the guide rail at the avoidance groove, and when the delivery goods shelf moves upwards, the delivery goods shelf takes away the carrier stopped at the blocking point; the position of the guide rail is lower than that of the first sprocket, the carrier comprises a vertical part and a carrier body, and the vertical distance from the blocking point to the highest point of the first sprocket is smaller than or equal to the height of the vertical part of the carrier.

13. The endless lift as recited in claim 12, wherein: the output end of the guide rail is provided with an extension part, and the avoidance groove and the baffle point are arranged on the extension part.

14. The endless lift as recited in claim 13, wherein: and 1 blocking point is respectively arranged at two sides of the avoidance groove.

15. The endless lift as recited in claim 12, wherein: at the first sprocket, the descending strand of the chain is pulled to be disposed obliquely outward of the first sprocket.

16. The endless lift as recited in claim 12, wherein: the guide rail is an inclined guide rail and is inclined downwards towards the direction of the output end of the guide rail.

17. The endless lift as recited in any one of claims 7-16, further characterized by: the guide rail is provided with a release mechanism, the release mechanism is provided with a second carrier detection device, and the second carrier detection device is used for detecting whether carriers exist at the release mechanism.

18. The endless lift as recited in any one of claims 7-16, further characterized by: the chain is installed in the chain guide rail, corresponds to the guide rail output, the both sides of chain guide rail are provided with the stopper.

19. The endless lift as recited in claim 18, wherein: the limiting block is arranged on the chain guide rail through a connecting plate; the guide rail is installed on a first support piece, and the first support piece is connected with the connecting plate.

20. The endless lift as recited in claim 1 wherein: the conveying rack is perpendicular to the surface of a sprocket wheel around which the chain is wound.

21. The endless lift as recited in claim 1 wherein: the periphery of the delivery frame is provided with an annular groove, or a plurality of annular grooves are arranged at intervals along the length direction of the delivery frame.