CN214113982U - Transfer chain buffer memory device - Google Patents

Abstract

The application discloses a conveying line caching device which comprises a spline placing frame, wherein a plurality of stations for placing splines in parallel are arranged above the spline placing frame; the sample strip conveying mechanism comprises a sample strip conveying plate and a push plate positioned above the sample strip conveying plate; the push plate is connected with the slide way in a sliding way and can move along the direction of the sample strip conveying plate under the driving of the driving device; the first lifting mechanism is used for lifting the sample strip to move from one station above the sample strip placing rack to the direction of the sample strip conveying mechanism to an adjacent station; and the second lifting mechanism is used for lifting the splines to move to an adjacent station from a station above the spline rack to the direction of the spline conveying mechanism, or lifting the splines to move to the spline conveying mechanism from the spline rack. This application has realized the transportation operation to the spline of buffer memory on the spline rack through the lifting mechanism that two sets of lifting cylinders and push-and-pull cylinder constitute for when the difference in operating speed is great between two stations, unnecessary spline can get into next process in an orderly manner.

Description

Transfer chain buffer memory device

Technical Field

The utility model relates to a steel manufacturing process equipment technical field, in particular to transfer chain buffer memory device.

Background

In most current steel manufacturing industries, a conveying chain mode is adopted for conveying steel splines between two stations far away from each other, for example, after a steel plate is cut into the splines by a sizing shear, the splines need to be transferred onto the conveying chain by a robot, and the splines are conveyed to the next station by the conveying chain for cutting and other operations.

However, the conveying chain adopts a linear conveying mode, and the conveying space is narrow, so that the conveying chain is greatly limited in specific application. For example, the existing conveying chain can only convey one sample strip at a time, if more sample strips are cut by sizing in a short time and the conveying chain is slow in running speed, the robot must wait for the previous sample strip to completely move out of a station when placing the next sample strip, which can cause the robot not to transfer the sample strips cut at the previous station in time, so that the situation of sample strip accumulation is caused, and if the sample strips are excessively accumulated, a production accident that the sample strips overturn is easy to occur; if the robot puts next spline on the conveying chain in advance, easily result in the spline in the transportation, crooked downwards when the junction of conveying chain and next station, there is the risk that can't pass through or block.

SUMMERY OF THE UTILITY MODEL

The application provides a transfer chain buffer memory device to among the solution prior art, the spline that transmission spline leads to easily between the station far away of two distances piles up, spline can't pass through or block the problem.

In a first aspect, the present application provides a conveyor line buffer device, including:

placing a sample strip rack; a plurality of stations for placing splines in parallel are arranged above the spline placing frame;

the sample strip conveying mechanism is positioned on one side of the sample strip placing frame and is arranged in parallel with the placed sample strips;

the first lifting mechanisms are positioned on two sides of the spline placing rack and used for lifting splines to move to an adjacent station from a station above the spline placing rack to the direction of the spline conveying mechanism;

the second lifting mechanisms are located on two sides of the spline rack and located between the first lifting mechanisms and the spline conveying mechanisms and used for lifting splines from one station above the spline rack to one adjacent station in the direction of the spline conveying mechanisms, or lifting the splines from the spline rack to the spline conveying mechanisms.

In some embodiments, the spline transfer mechanism comprises a spline transfer plate and a push plate located above the spline transfer plate; one side of the sample strip conveying plate is provided with a slide way, and one end of the slide way is provided with a driving device; the push plate is connected with the slide way in a sliding manner and can move along the direction of the spline conveying plate under the driving of the driving device;

in some embodiments, the first lift mechanism comprises:

a first push-pull cylinder;

the first movable base is positioned on one side of the output end of the first push-pull air cylinder and is connected with the output end of the first push-pull air cylinder through a first connecting rod;

the first lifting cylinder is fixed on the first movable base; the output end of the first lifting cylinder is vertically arranged upwards;

the first sample strip supporting plate is positioned above the first lifting cylinder and is fixedly connected with the output end of the first lifting cylinder; the upper end surface of the first spline supporting plate can be higher or lower than the horizontal plane of the spline placing frame under the driving of the first lifting air cylinder.

First removal base below is equipped with first gyro wheel, first lifting mechanism still includes:

the first rail is laid in the direction perpendicular to the spline conveying mechanism; the first roller slides along the first track.

In some embodiments, the second lift mechanism comprises:

a second push-pull cylinder;

the second movable base is positioned on one side of the output end of the second push-pull air cylinder and is connected with the output end of the second push-pull air cylinder through a second connecting rod;

the second lifting cylinder is fixed on the second movable base; the output end of the second lifting cylinder is vertically arranged upwards;

the second spline supporting plate is positioned above the second lifting cylinder and is fixedly connected with the output end of the second lifting cylinder; the upper end surface of the second spline supporting plate can be higher or lower than the horizontal surface of the spline placing frame under the driving of the second lifting air cylinder.

Second removes the base below and is equipped with the second gyro wheel, the second lifts the mechanism and still includes:

the second rail is laid in the direction perpendicular to the spline conveying mechanism; the second roller slides along the second track.

In some embodiments, two first rails and two second rails are provided, and the first rails are staggered from the second rails.

In some embodiments, a plurality of spline positioning blocks are detachably connected to one side of the spline transfer plate, which is close to the spline placing rack; the distance between the end face of the spline positioning block and the slide way is adjustable.

In some embodiments, the first and second lifting mechanisms are each capable of lifting splines located on at least two stations simultaneously.

In a second aspect, the present application provides a conveyor line buffer device, including:

placing a sample strip rack; a plurality of stations for placing splines in parallel are arranged above the spline placing frame;

the sample strip conveying mechanism is positioned on one side of the sample strip placing frame and is arranged in parallel with the placed sample strips;

the first lifting mechanisms are positioned on two sides of the spline placing rack and used for lifting splines to move to an adjacent station from a station above the spline placing rack to the direction of the spline conveying mechanism; or lifting a spline from the spline placing frame to the spline conveying mechanism.

In some embodiments, the spline transfer mechanism comprises a spline transfer plate and a push plate located above the spline transfer plate; one side of the sample strip conveying plate is provided with a slide way, and one end of the slide way is provided with a driving device; the push plate is connected with the slide way in a sliding manner and can move along the direction of the spline conveying plate under the driving of the driving device;

in some embodiments, the first lift mechanism comprises:

a first push-pull cylinder;

the first movable base is positioned on one side of the output end of the first push-pull air cylinder and is connected with the output end of the first push-pull air cylinder through a first connecting rod;

the first lifting cylinder is fixed on the first movable base; the output end of the first lifting cylinder is vertically arranged upwards;

the first sample strip supporting plate is positioned above the first lifting cylinder and is fixedly connected with the output end of the first lifting cylinder; the upper end surface of the first spline supporting plate can be higher or lower than the horizontal plane of the spline placing frame under the driving of the first lifting cylinder;

first removal base below is equipped with first gyro wheel, first lifting mechanism still includes:

the first rail is laid in the direction perpendicular to the spline conveying mechanism; the first roller slides along the first track.

This application lifts the mechanism through two sets of cylinders of lifting and push-and-pull cylinder constitution and has realized the transportation operation to the spline of buffer memory on the spline rack for when the difference of running speed is great between two stations, unnecessary spline can get into next process in an orderly manner, and, the device that this application provided can improve the stability that the spline transported the in-process, avoids irregularly putting the poor problem of spline through rate that causes.

Drawings

In order to more clearly explain the technical solution of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without any creative effort.

Fig. 1 is a schematic structural diagram of a conveying line buffer device according to the present application;

FIG. 2 is a side view of the device of FIG. 1;

fig. 3 is a partial structural view of a first lifting mechanism in a transfer line buffer device according to the present application;

fig. 4 is a partial structural view of a second lifting mechanism in the transfer line buffer device according to the present application;

fig. 5 is a schematic view illustrating a spline transfer mechanism in a transfer line buffer device according to an embodiment of the present application;

FIG. 6 is a schematic diagram of the operation of the first lifting mechanism;

fig. 7 is a schematic diagram of the operation process when the spline number is the maximum allowable value.

Detailed Description

Example one

Fig. 1 is a schematic structural diagram of a conveying line buffer device according to the present application;

as can be seen from fig. 1, an embodiment of the present application provides a conveyor line buffer apparatus including:

the sample strip placing rack 1 is used for placing cached steel sample strips 100 (sample strips are hereinafter abbreviated as sample strips), and the sample strip placing rack 1 can be designed into a rack body structure in various forms, such as being formed by welding or screwing angle steel; the top of spline rack 1 is provided with a plurality of station of parallel placing the spline, as shown in figure 1, when the spline is placed on spline rack 1, adopts the parallel mode of putting side by side, but inwards sets up a plurality of stations adjacently along putting the direction, and the quantity of station is equal to the quantity that spline rack 1 can put the spline at most.

The spline conveying mechanism is positioned on one side of the spline placing frame 1 and is arranged in parallel with the placed splines and used for conveying the splines cached on the spline placing frame 1 to the next station, and in a feasible embodiment, the spline conveying mechanism comprises a spline conveying plate 4 and a push plate 5 positioned above the spline conveying plate 4; a slide way 41 is arranged on one side of the sample strip conveying plate 4, a driving device 42 is arranged at one end of the slide way 41, and the driving device 42 can be driven by a motor and other equipment; the push plate 5 is connected with the slide rail 41 in a sliding manner and can move along the direction of the spline conveying plate 4 under the driving of the driving device 42; the specific working process is that when the sample strip is transferred to the sample strip conveying plate 4, the driving device 42 is started, the driving push plate 5 positioned at one end can be moved to the other end, and the sample strip is driven to move out of the sample strip conveying plate 4.

The first lifting mechanisms 2 are positioned on two sides of the spline rack 1 and used for lifting splines to move to an adjacent station from a station above the spline rack 1 to the direction of the spline conveying mechanism;

and the second lifting mechanisms 3 are positioned on two sides of the spline rack 1, positioned between the first lifting mechanisms 2 and the spline conveying mechanisms and used for lifting splines from a station above the spline rack 1 to the adjacent station in the direction of the spline conveying mechanisms or lifting splines from the spline rack 1 to the spline conveying mechanisms.

In this embodiment, first lifting mechanism 2 and second lifting mechanism 3 are all actuating mechanisms that are used for changing the position of spline on spline rack 1, and concrete working method does, and the spline backup pad initial position of first lifting mechanism or second lifting mechanism is located below the spline rack top surface, when the spline has been placed to spline rack top, can lift up the spline along the vertical direction earlier by first lifting mechanism or second lifting mechanism, and the distance of a station is removed to spline transport mechanism's direction again, and then put down the spline along the vertical direction again, make the spline place again in spline rack 1 top, and like this, the locating position of spline on spline rack 1 has just inwards removed a station.

In this embodiment, the number of stations above spline rack 1 has decided the spline number that the device of this application can cache, and the number that first lifting mechanism 2 and second lifting mechanism 3 can transport the spline respectively simultaneously depends on the width of its spline backup pad, and is general, and first lifting mechanism 2 and second lifting mechanism 3 have at least the ability of transporting two splines respectively.

Further, as can be seen from fig. 2 and 3, in a possible embodiment, the first lifting mechanism 2 includes:

the first push-pull air cylinder 21 is used for driving other parts to move along the direction towards the spline conveying mechanism and move for a distance of one station at a time;

and a first moving base 22 located on one side of the output end of the first push-pull cylinder 21 and connected with the output end of the first push-pull cylinder 21 through a first connecting rod 23 for carrying other components of the first lifting mechanism, wherein the first moving base 22 can reciprocate along the direction towards the spline transfer mechanism under the driving of the first push-pull cylinder 21.

A first lift cylinder 24 fixed to the first movable base 22; the output end of the first lifting cylinder 24 is arranged vertically upwards and used for driving the first sample strip supporting plate 25 to move upwards or downwards in the vertical direction, so that the surface of the first sample strip supporting plate 25 can be higher or lower than the top surface of the sample strip placing rack 1.

The first sample strip supporting plate 25 is positioned above the first lifting cylinder 24 and is fixedly connected with the output end of the first lifting cylinder 24; the upper end surface of the first spline support plate 25 can be driven by the first lifting cylinder 24 to be higher or lower than the level of the spline rack 1. Further, in order to ensure stability during transportation of the splines, in a preferred embodiment, the upper surface of the first spline support plate 25 is further provided with projections 251 for spacing the stations apart so that the splines after transportation are kept in a parallel state.

Further, as shown in fig. 3, in an embodiment, a first roller 221 is disposed below the first moving base 22, and the first lifting mechanism 2 further includes:

a first rail 26 laid in a direction perpendicular to the spline transfer mechanism; the first roller 221 slides along the first rail 26, and the roller and rail structure can stabilize the first movable base 22 in reciprocating movement, so that the splines are prevented from overturning, changing the position and interfering with subsequent transportation.

In the present embodiment, the second lifting mechanism 3 has a similar structure to the first lifting mechanism 2, and as can be seen from fig. 2 and 4, the second lifting mechanism 3 includes:

a second push-pull cylinder 31;

a second movable base 32 located on one side of the output end of the second push-pull cylinder 31 and connected to the output end of the second push-pull cylinder 31 through a second connecting rod 33;

a second lift cylinder 34 fixed to the second movable base 32; the output end of the second lifting cylinder 34 is vertically arranged upwards;

the second spline supporting plate 35 is positioned above the second lifting cylinder 34 and is fixedly connected with the output end of the second lifting cylinder 34; the upper end surface of the second spline support plate 35 may be higher or lower than the level of the spline rack 1 by the driving of the second lift cylinder 34.

Further, a second roller 321 is disposed below the second moving base 32, and the second lifting mechanism 3 further includes:

a second rail 36 laid in a direction perpendicular to the spline transfer mechanism; the second roller 321 slides along the second rail 36.

The functions of the components in the second lifting mechanism 3 can be correspondingly explained in the first lifting mechanism 2, and are not described in detail herein.

In the embodiment of the present application, the driving control of the first push-pull cylinder 21, the second push-pull cylinder 31, the first lift cylinder 24, and the second lift cylinder 34 may be performed by a software program, or may be performed manually, but is not limited thereto, for example, the time for automatically starting may be set by a preset program, the transporting operation from the first station to the second station may be automatically performed after the first station is placed for several seconds, or the transporting operation may be performed after a signal for placing a sample strip is obtained from the previous station.

And it should be understood that the first push-pull cylinder 21, the second push-pull cylinder 31, the first lift cylinder 24, and the second lift cylinder 34 in the present application all have a power supply, an external power supply or an external power supply, or all have power supplied by a unified control system.

Furthermore, the first rail 26 and the second rail 36 are both provided with two rails, and the first rail 26 and the second rail 36 are staggered, so that the first lifting mechanism 2 and the second lifting mechanism 3 do not affect each other when working simultaneously.

Further, as can be seen from fig. 5, in a feasible embodiment, a plurality of spline positioning blocks 43 are detachably connected to one side of the spline transmission plate 4 close to the spline placement frame 1, and the fixing manner between the spline positioning blocks and the spline positioning blocks can be various, such as bolt fixing, bolt fixing and the like; the distance from the end face of the spline positioning block 43 to the slide rail 41 is adjustable, so that splines conveyed to the upper side of the spline transfer plate 4 can be aligned by the spline positioning block 43, and the operation of the next process is facilitated.

The working process of the transfer line buffer device provided by the present application can be illustrated by fig. 6: in the figure, five stations (indicated by (1), (2), (3), (4), and (5), respectively) are illustrated as an example, wherein the first lifting mechanism 2 can perform spline conveying operations at the positions of the stations (1), (2), and (3), and the second lifting mechanism 3 performs spline conveying operations at the positions of the stations (4) and (5). When three splines are placed on the spline placing frame 1 (position (a) in fig. 6), at this time, the first lifting mechanism 2 needs to be driven to complete inward conveying operation, firstly, the first lifting cylinder 24 drives the first spline supporting plate 25 to ascend and lift the splines (position (b) in fig. 6), then the first push-pull cylinder 21 drives the first moving base 22 to integrally move inward by a distance of one station, so that the splines are respectively located above (2), (3) and (4) (position (c) in fig. 6), finally, the first lifting cylinder 24 drives the first spline supporting plate 25 to descend and make the splines fall on the spline placing frame (position (d) in fig. 6), and then, the first push-pull cylinder 21 drives the first moving base 22 to integrally move outward by a distance of one station, so far, one conveying operation of the first lifting mechanism 2 is finished.

When the number of the splines cached on the caching device is the maximum containable value, the second lifting mechanism 3 needs to be adopted to complete the operation of transferring the splines on the spline placing rack to the spline conveying mechanism, and the specific operation process can be illustrated by fig. 7: similarly, for example, with five stations, when five splines are placed on the spline placement frame (position (a) in fig. 7), at this time, the second lifting mechanism 3 needs to be driven to complete the inward conveying operation, the second lifting cylinder 34 drives the second spline support plate 35 to ascend and lift the splines (position (b) in fig. 7), then the second push-pull cylinder 31 drives the second moving base 32 to move inward by the distance of one station as a whole, so that the splines originally located at positions (4) and (5) are located above positions (5) and (6) respectively (position (c) in fig. 7), the second lifting cylinder 34 drives the second spline support plate 35 to descend and make the splines fall on the spline placement frame and the spline transfer plate respectively, at this time, because the push plate needs to be waited to push the splines to be sent to the next procedure, the second push-pull cylinder 31 cannot drive the second moving base 32 to return to the next procedure temporarily, the spline conveying operation of the stations (1), (2) and (3) by the first lifting mechanism can be executed firstly, the specific steps are shown as (e) - (g) in fig. 7, and the specific process can be referred to the description in fig. 6; and finally, after the sample strip is pushed to the next procedure by the push plate, the first push-pull air cylinder and the second push-pull air cylinder can simultaneously drive the first movable base and the second movable base to return to the original position, so that the operation of integrally and inwardly conveying is completed. The idle station (1) can continue to carry new splines.

The utility model provides a problem that spline transported efficiency can effectively be solved to buffer memory device, for example, the mode that assumes the spline to adopt the conveying chain between two stations in front and back needs 30s, and adopts the buffer memory device of this application, from a station on the spline rack inwards remove a station only need 5s, like this, when needs transport the spline to next cutting station, the device of this application can accomplish 5s and carry a spline promptly, and prior art can only transport one in 30s, obviously greatly improved efficiency.

Simultaneously, when last station functioning speed was very fast, when next station operation was slow or became slowly suddenly, this application can realize the buffer memory function owing to set up the station of a plurality of buffer memory splines, has avoided the spline to pile up the problem.

According to the technical scheme, the application provides a conveyor line caching device which comprises a spline placing frame; a plurality of stations for placing splines in parallel are arranged above the spline placing frame; the sample strip conveying mechanism is positioned on one side of the sample strip placing frame and is arranged in parallel with the placed sample strips, and comprises a sample strip conveying plate and a push plate positioned above the sample strip conveying plate; one side of the sample strip conveying plate is provided with a slide way, and one end of the slide way is provided with a driving device; the push plate is connected with the slide way in a sliding manner and can move along the direction of the spline conveying plate under the driving of the driving device; the first lifting mechanisms are positioned on two sides of the spline placing rack and used for lifting splines to move to an adjacent station from a station above the spline placing rack to the direction of the spline conveying mechanism; the second lifting mechanisms are located on two sides of the spline rack and located between the first lifting mechanisms and the spline conveying mechanisms and used for lifting splines from one station above the spline rack to one adjacent station in the direction of the spline conveying mechanisms, or lifting the splines from the spline rack to the spline conveying mechanisms. This application lifts the mechanism through two sets of cylinders of lifting and push-and-pull cylinder constitution and has realized the transportation operation to the spline of buffer memory on the spline rack for when the difference of running speed is great between two stations, unnecessary spline can get into next process in an orderly manner, and, the device that this application provided can improve the stability that the spline transported the in-process, avoids irregularly putting the poor problem of spline through rate that causes.

Example two

Similar to the embodiment, the present application also provides another transfer line buffer device, including:

a sample strip placing rack 1; a plurality of stations for placing splines in parallel are arranged above the spline placing frame 1;

the sample strip conveying mechanism is positioned on one side of the sample strip placing frame 1 and is arranged in parallel with the placed sample strips, and in a feasible embodiment, the sample strip conveying mechanism comprises a sample strip conveying plate 4 and a push plate 5 positioned above the sample strip conveying plate 4; a slide way 41 is arranged on one side of the sample strip conveying plate 4, and a driving device 42 is arranged at one end of the slide way 41; the push plate 5 is connected with the slide rail 41 in a sliding manner and can move along the direction of the spline conveying plate 4 under the driving of the driving device 42;

the first lifting mechanisms 2 are positioned on two sides of the spline rack 1 and used for lifting splines to move to an adjacent station from a station above the spline rack 1 to the direction of the spline conveying mechanism; or lifting a spline from the spline placing frame 1 to the spline conveying mechanism.

Different from the conveyor line caching device in the first embodiment, the device provided in this embodiment only uses one lifting mechanism to realize the transportation function of the spline, and the same technical effects are also achieved.

Further, the first lifting mechanism 2 includes:

a first push-pull cylinder 21;

a first movable base 22 located at one side of the output end of the first push-pull cylinder 21 and connected to the output end of the first push-pull cylinder 21 through a first connecting rod 23;

a first lift cylinder 24 fixed to the first movable base 22; the output end of the first lifting cylinder 24 is vertically arranged upwards;

the first sample strip supporting plate 25 is positioned above the first lifting cylinder 24 and is fixedly connected with the output end of the first lifting cylinder 24; the upper end surface of the first spline supporting plate 25 can be driven by the first lifting air cylinder 24 to be higher or lower than the horizontal surface of the spline placing frame 1;

a first roller 221 is disposed below the first movable base 22, and the first lifting mechanism 2 further includes:

a first rail 26 laid in a direction perpendicular to the spline transfer mechanism; the first roller 221 slides along the first rail 26.

Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.

Claims (10)

1. A conveyor line buffer device, comprising:

a sample strip placing rack (1); a plurality of stations for placing splines in parallel are arranged above the spline placing frame (1);

the sample strip conveying mechanism is positioned on one side of the sample strip placing frame (1) and is arranged in parallel with the placed sample strips;

the first lifting mechanisms (2) are positioned on two sides of the spline placing frame (1) and are used for lifting splines to move to an adjacent station from a station above the spline placing frame (1) to the direction of the spline conveying mechanism;

and the second lifting mechanisms (3) are positioned on two sides of the spline rack (1), positioned between the first lifting mechanism (2) and the spline conveying mechanism and used for lifting splines from one station above the spline rack (1) to the adjacent station in the direction of the spline conveying mechanism or lifting splines from the spline rack (1) to the spline conveying mechanism.

2. The conveyor line buffer device according to claim 1, characterized in that the spline transfer mechanism includes a spline transfer plate (4) and a push plate (5) located above the spline transfer plate (4); one side of the sample strip conveying plate (4) is provided with a slide way (41), and one end of the slide way (41) is provided with a driving device (42); the push plate (5) is connected with the slide way (41) in a sliding mode and can move along the direction of the spline transmission plate (4) under the driving of the driving device (42).

3. Conveyor line buffer device according to claim 2, characterized in that the first lifting mechanism (2) comprises:

a first push-pull cylinder (21);

the first movable base (22) is positioned on one side of the output end of the first push-pull air cylinder (21) and is connected with the output end of the first push-pull air cylinder (21) through a first connecting rod (23);

a first lifting cylinder (24) fixed on the first movable base (22); the output end of the first lifting cylinder (24) is vertically arranged upwards;

the first sample strip supporting plate (25) is positioned above the first lifting cylinder (24) and is fixedly connected with the output end of the first lifting cylinder (24); the upper end surface of the first spline supporting plate (25) can be driven by the first lifting cylinder (24) to be higher or lower than the horizontal surface of the spline placing rack (1);

a first roller (221) is arranged below the first movable base (22), and the first lifting mechanism (2) further comprises:

a first rail (26) laid in a direction perpendicular to the spline transfer mechanism; the first roller (221) slides along the first rail (26).

4. Conveyor line buffer device according to claim 3, characterized in that the second lifting mechanism (3) comprises:

a second push-pull cylinder (31);

a second movable base (32) which is positioned on one side of the output end of the second push-pull cylinder (31) and is connected with the output end of the second push-pull cylinder (31) through a second connecting rod (33);

a second lifting cylinder (34) fixed on the second movable base (32); the output end of the second lifting cylinder (34) is vertically arranged upwards;

the second spline supporting plate (35) is positioned above the second lifting cylinder (34) and is fixedly connected with the output end of the second lifting cylinder (34); the upper end surface of the second spline supporting plate (35) can be driven by the second lifting air cylinder (34) to be higher or lower than the horizontal surface of the spline placing frame (1);

a second roller (321) is arranged below the second movable base (32), and the second lifting mechanism (3) further comprises:

a second rail (36) laid in a direction perpendicular to the spline transfer mechanism; the second roller (321) slides along the second rail (36).

5. Conveyor line buffer device according to claim 4, characterized in that two tracks are provided for each of the first track (26) and the second track (36), the first track (26) being arranged offset with respect to the second track (36).

6. The conveyor line caching device according to claim 5, wherein a plurality of spline positioning blocks (43) are detachably connected to one side, close to the spline placement rack (1), of the spline transfer plate (4); the distance between the end face of the spline positioning block (43) and the slide way (41) is adjustable.

7. Conveyor line buffer device according to claim 1, characterized in that the first lifting mechanism (2) and the second lifting mechanism (3) are each capable of lifting splines located on two stations at least simultaneously.

8. A conveyor line buffer device, comprising:

a sample strip placing rack (1); a plurality of stations for placing splines in parallel are arranged above the spline placing frame (1);

the sample strip conveying mechanism is positioned on one side of the sample strip placing frame (1) and is arranged in parallel with the placed sample strips;

the first lifting mechanisms (2) are positioned on two sides of the spline placing frame (1) and are used for lifting splines to move to an adjacent station from a station above the spline placing frame (1) to the direction of the spline conveying mechanism; or lifting a spline from the spline placing frame (1) to the spline conveying mechanism.

9. The conveyor line buffering device according to claim 8, characterized in that the spline transfer mechanism includes a spline transfer plate (4) and a push plate (5) located above the spline transfer plate (4); one side of the sample strip conveying plate (4) is provided with a slide way (41), and one end of the slide way (41) is provided with a driving device (42); the push plate (5) is connected with the slide way (41) in a sliding mode and can move along the direction of the spline transmission plate (4) under the driving of the driving device (42).

10. Conveyor line buffer device according to claim 8 or 9, characterized in that the first lifting mechanism (2) comprises:

a first push-pull cylinder (21);

the first movable base (22) is positioned on one side of the output end of the first push-pull air cylinder (21) and is connected with the output end of the first push-pull air cylinder (21) through a first connecting rod (23);

a first lifting cylinder (24) fixed on the first movable base (22); the output end of the first lifting cylinder (24) is vertically arranged upwards;

the first sample strip supporting plate (25) is positioned above the first lifting cylinder (24) and is fixedly connected with the output end of the first lifting cylinder (24); the upper end surface of the first spline supporting plate (25) can be driven by the first lifting cylinder (24) to be higher or lower than the horizontal surface of the spline placing rack (1);

a first roller (221) is arranged below the first movable base (22), and the first lifting mechanism (2) further comprises:

a first rail (26) laid in a direction perpendicular to the spline transfer mechanism; the first roller (221) slides along the first rail (26).

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