CN217102148U - Unstacker - Google Patents

Abstract

The utility model discloses a unstacker, including the side bearer that is located the direction of delivery both sides of conveyer, be provided with respectively on two side bearers and lift the mechanism, lift the mechanism including rotationally setting up two pivots on the crossbeam of side bearer, connect support arm and linkage arm respectively in the every pivot, connect the gangbar between two linkage arms, gangbar and two linkage arm pin joints, one of them linkage arm still pin joint one is located the one end of the drive arrangement between two pivots, drive arrangement's other end pin joint is on the support, two support arms of drive arrangement drive rotate between primary importance and second place in step, and the rotation reverse phase of two support arms is opposite. The swing opposite direction of two support arms of cylinder drive is passed through to this scheme, on the basis of saving the power supply, can avoid the both sides contact of support arm and tray effectively, thereby can make two support arms be close to the both ends assurance support's of tray stability simultaneously, and drive arrangement is located and is favorable to simplifying the structure between two pivots.

Description

Unstacker

Technical Field

The utility model belongs to the technical field of tray split equipment and specifically relates to unstacker.

Background

The unstacker is equipment for splitting stacked trays, for example, a structure shown in application No. 202120024035.4, and the unstacker adopts four cylinders to drive four supporting pin shafts to support the stacked trays, and the structure adopts a large number of cylinders, so that the equipment cost and the energy consumption cost are high.

Also as shown in application No. 201910196917.6, it drives four de-stacking bars by means of two cylinders, but this configuration, in which the two de-stacking bars on the same side rotate in the same direction, causes the two de-stacking bars on the same side to easily interfere with the risers on both sides of the pallet, and it makes the de-stacking bars generally in the middle of the pallet, which supports relatively less stably.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an unstacker in order to solve the above-mentioned problem that exists among the prior art.

The purpose of the utility model is realized through the following technical scheme:

the unstacker comprises side frames positioned at two sides of a conveyor in the conveying direction, wherein lifting mechanisms are respectively arranged on the two side frames, each lifting mechanism comprises two rotating shafts which are rotatably arranged on a cross beam of the side frame, each rotating shaft is respectively connected with a supporting arm and a linkage arm, a linkage rod is connected between the two linkage arms, the linkage rod is pivoted with the two linkage arms, one linkage arm is also pivoted with one end of a driving device positioned between the two rotating shafts, the other end of the driving device is pivoted on a support, the driving device drives the two supporting arms to synchronously rotate between a first position and a second position, the rotation directions of the two supporting arms are opposite, and the supporting arms extend to the position above the conveying surface of the conveyor at the first position; in the second position, the support arm is located outside of the conveyor.

Preferably, in the unstacker, the linkage rod is connected with the linkage arm through a rod end joint bearing.

Preferably, in the unstacker, the rotating shaft is arranged on the cross beam through a bearing with a seat positioned above and below the cross beam.

Preferably, in the unstacker, one of the linkage arms is in an S shape or a Z shape, the other linkage arm is in an L shape, the S-shaped or Z-shaped linkage arm is coaxially connected with a rotating shaft, a first end of the linkage arm, which is deviated to the outer side of the side frame, is pivoted with the driving device, a second end of the linkage arm is pivoted with one end of the linkage rod, the other end of the linkage rod is pivoted with the rotating shaft, which is deviated to the outer side of the side frame, of the L-shaped linkage rod, and the other end of the L-shaped linkage rod is pivoted with the other rotating shaft.

Preferably, in the unstacker, the conveyor comprises two belt conveying mechanisms arranged at intervals, and a limiting plate positioned above the conveying surface of each belt conveying mechanism is arranged on the outer side of the belt conveying mechanism.

Preferably, in the unstacker, the rollers at both ends of the belt conveying mechanism are respectively arranged on end heads in a rotatable manner, and the end heads are arranged on the mounting beam of the belt conveying mechanism in a manner of moving along the conveying direction of the belt conveying mechanism.

Preferably, in the unstacker, a jacking mechanism is arranged between the two belt conveying mechanisms.

Preferably, in the unstacker, the jacking mechanism comprises a supporting table, the supporting table is driven to jack through a first air cylinder and a second air cylinder, the first air cylinder is fixed on the base, an air cylinder shaft of the first air cylinder faces upwards and is connected with a lifting plate, the lifting plate is provided with the second air cylinder, and the second air cylinder is located below the lifting plate, extends to the upper part of the lifting plate and is connected with the supporting table.

Preferably, in the unstacker, a group of limiting cylinders which are positioned at two sides of the jacking mechanism and close to the limiting plates are arranged at the inner side of each side frame, and the group of limiting cylinders are perpendicular to the conveying surface of the conveyor.

The utility model discloses technical scheme's advantage mainly embodies:

this scheme realizes two support arm swings of a cylinder drive through special connecting rod structure, makes the swing opposite direction of two support arms, on the basis of saving the power supply, for syntropy wobbling support arm structure, can avoid the both sides contact of support arm and tray effectively, thereby can make two support arms be close to the both ends assurance support's of tray stability simultaneously, drive arrangement is located and is favorable to simplifying the structure between two pivots.

The linkage arm and the linkage rod are connected through the rod end joint bearing, so that the connection structure is simpler, and the driving is more stable.

This scheme is through pivot of two upper and lower tape seat bearing installations, and the pivot is longer so that the installation of other structures in time, guarantees the validity of countershaft support simultaneously.

The end of the belt conveying mechanism is movably connected with the mounting beam, so that the assembly and maintenance of the belt conveying mechanism are facilitated.

Two cylinders of the jacking mechanism are located between the lifting plate and the base, and the jacking mechanism is more beneficial to improving the compactness of equipment and saves the installation space compared with the existing structure.

Drawings

FIG. 1 is a perspective view of the unstacker of the present invention;

FIG. 2 is an enlarged view of area A of FIG. 1;

fig. 3 is a perspective view of the conveyor of the present invention;

FIG. 4 is a perspective view of the tip of the present invention;

FIG. 5 is a cross-sectional view of the connection of the end head to the mounting beam of the present invention;

fig. 6 is a perspective view of the jacking mechanism of the present invention.

Detailed Description

Objects, advantages and features of the present invention will be illustrated and explained by the following non-limiting description of preferred embodiments. These embodiments are merely exemplary embodiments for applying the technical solutions of the present invention, and all technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the scope of the present invention.

In the description of the embodiments, it should be noted that the terms "center", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the embodiment, the operator is used as a reference, and the direction close to the operator is a proximal end, and the direction away from the operator is a distal end.

Example 1

The unstacker disclosed by the present invention is explained with reference to the accompanying drawings, as shown in fig. 1, it includes a conveyor 1, a jacking mechanism 2 and side frames 3 located at both sides of the conveying direction of the conveyor 1, two of the side frames 3 are connected by a connecting beam, and two of the side frames are respectively provided with a lifting mechanism 4, as shown in fig. 2, the lifting mechanism 4 is higher than the conveying surface of the conveyor 1, the lifting mechanism 4 includes two rotating shafts 41 rotatably arranged on the cross beam 31 of the side frame 3, each of the rotating shafts 41 is respectively connected with a supporting arm 42 and a linkage arm 43, the supporting arm is L-shaped, a linkage rod 44 is connected between the two linkage arms 43, the linkage rod 44 is pivoted with the two linkage arms 43, one of the linkage arms is also pivoted with one end of a driving device 45 located between the two rotating shafts 41, the other end of the driving device 45 is pivoted on a support 46, the support is positioned on the outer side of the cross beam, the driving device 45 drives the two supporting arms 42 to rotate synchronously between a first position and a second position, the rotation directions of the two supporting arms 42 are opposite, and in the first position, the supporting arms 42 extend to be above the conveying surface of the conveyor 1; in the second position, the support arm 42 is located outside the conveyor 1.

The structure can drive the two supporting arms 42 to synchronously swing through one air cylinder, meanwhile, the swinging directions of the two supporting arms 42 are opposite, the supporting arms 42 can be effectively prevented from contacting with the two sides of the tray in the swinging process, meanwhile, the supporting arms can be close to the two sides of the tray as far as possible, so that the supporting stability is ensured, and the mounting space required by the lifting mechanism is smaller relative to a structure rotating in the same direction.

As shown in fig. 2, the rotating shaft 41 is disposed on the cross beam 31 through the bearing with seat 47 located above and below the cross beam 31, which enables the rotating shaft 41 to be disposed longer and to have better support. Meanwhile, one of the linkage arms 43 is S-shaped or Z-shaped, the linkage arm 43 is coaxially connected with a rotating shaft 41, a first end 48 of the linkage arm 43, which is biased to the outer side of the side frame 3, is pivoted with the driving device 45, and a second end 49 (end biased to the inner side of the side frame) of the linkage arm is pivoted with one end of the linkage rod 44. The other linkage arm 43 is L-shaped, and has one end 410 pivotally connected to the other rotating shaft 41 and the other end 411 biased toward the outer side of the side frame 3 and pivotally connected to one end of the linkage rod 44.

As shown in FIG. 2, the linkage rod 44 is connected with the linkage arms 43 through the rod end joint bearing 412, and in such a structure, the rod end joint bearing has a larger adjusting space, so that the linkage rod 44 can more easily drive the two linkage arms 43 to move together.

The conveyor 1 may adopt a known feasible structure, such as a roller conveyor, and the jacking mechanism 2 may adopt a known feasible structure, which is not described in detail herein.

As shown in fig. 1, each of the inner sides of the side frames 3 is provided with a set of limiting cylinders 32 of the limiting plates 15 located on both sides of the jacking mechanism 2, and the set of limiting cylinders 32 is perpendicular to the conveying surface of the conveyor 1, so that the stacked trays can be effectively prevented from inclining to both sides of the conveying direction of the conveyor 1 due to vibration when the stacked trays are lifted, and the risk of toppling is avoided.

When the unstacker works, the supporting arm 42 is located at the second position in the initial state, at this time, the conveyor 1 conveys the stacked trays to the lifting mechanism 4, and then the jacking mechanism 2 jacks up all the trays on the conveyor 1 to the position where the height of the tray on the second layer is matched with that of the supporting arm 42 of the lifting mechanism 4. The drive means 45 then drives the support arms 42 from the second position to the first position, in which case the four support arms 42 project into the bottom or interior of the second layer of trays, the jacking mechanism 2 then drives the trays of the first layer on the jacking mechanism to move downwards to the conveyor 1 and output outwards, then, the jacking mechanism 2 jacks up all the trays lifted by the supporting arms 42 again, the drive means 45 then drives the support arm 42 from the first position to the second position, in which case, the jacking mechanism 2 moves the pallet which is currently in the lowermost tier down to a position below the support arm 42 but above the conveyor 1, then, the driving device 45 drives the supporting arm 42 to switch to the second state again, so as to hold the tray which is currently on the second layer and the upper layer, then, the jacking mechanism 2 descends to drop the tray thereon back to the conveyor 1 for output. The above process is repeated until all the trays are output one by the conveyor 1.

Example 2

This embodiment differs from embodiment 1 described above in that: as shown in fig. 3, the conveyor 1 includes two belt conveyor 11 that the clearance set up, and two belt conveyor 11 set up on support 12, and every belt conveyor 11's the outside is provided with the limiting plate 15 that is located its transport face top, two limiting plate 15 can restrict the position of the tray of piling up on the conveyor effectively to guarantee the position accuracy of tray and climbing mechanism 2 and lifting mechanism 4.

As shown in fig. 3 to 5, each belt conveying mechanism 11 includes a mounting beam 13 disposed on the support 12, the mounting beam 13 includes a U-shaped main body 14, a notch of the U-shaped main body 14 faces downward, two limit slats 115 extending along a length direction of the U-shaped main body 14 are disposed above the U-shaped main body 14, and a support limit plate 112 is further disposed between the two limit slats on a top plate of the U-shaped main body 14. The two ends of the mounting beam 13 are respectively provided with a roller 16, the rollers 16 are respectively arranged on an end head 17 in a rotation manner, and the end head 17 is clamped on the mounting beam of the belt conveying mechanism 11. The end head 17 comprises two vertical plates 18 connected together, a coaxial mounting hole for mounting the roller 16 is formed on the two vertical plates 18, a baffle plate 19 corresponding to the two limit slat 115 is formed at the position close to the upper end of the inner side of the two vertical plates 18, and the baffle plate 19 is attached to the outer side of the corresponding limit slat 115, so that the two limit slat 115 and the baffle plate 19 can be matched to limit the position of the end head 17. The inner side of the end head 17 is further provided with an abutting plate 110 positioned below the end head, a gap is kept between the top of the abutting plate 110 and the bottom of the baffle plate 19, the gap is equivalent to the thickness of a top plate 114 of the U-shaped main body 14, the top plate of the U-shaped main body 14 is inserted into the gap, so that the top of the abutting plate 110 abuts against the bottom of the top plate 114, the bottom of the baffle plate 19 abuts against the top surface of the top plate 114, and a supporting platform 113 on the end head abuts against the bottom surface of the top plate 114.

A belt (not shown) looped between the two rollers 16 effectively keeps the two ends 17 from separating from the mounting beam 13. The supporting shaft 111 where one roller 16 in the belt conveying mechanism is located is connected with a structure for driving the roller to rotate, and the structure for driving the roller 16 to rotate is known in the art and is not described in detail herein. Of course, the two belt conveying mechanisms 11 may also share one motor, that is, the support shafts of the two rollers at the same end of the two belt conveying mechanisms 11 may be a shaft or connected through a connecting shaft, and the support shaft may be connected to the motor.

Example 3

This embodiment differs from embodiments 1 and 2 described above in that: as shown in fig. 6, the jacking mechanism 2 includes a supporting table 21, the supporting table 21 is driven to jack by a first cylinder 22 and a second cylinder 23, the first cylinder 22 is fixed on a base 24, a cylinder shaft of the first cylinder is upward and connected with a lifting plate 25, the lifting plate 25 is provided with the second cylinder 23, the second cylinder 23 is located below the lifting plate 25, the cylinder shaft of the second cylinder extends to above the lifting plate 25 and is connected with the supporting table 21, the lifting plate 25 and the supporting table are respectively connected with a guide mechanism formed by a guide shaft and a guide sleeve, and the specific structure of the guide mechanism is not described herein. This structure enables the first cylinder 22 and the second cylinder 23 to be located between the lifting plate 25 and the base 24, and thus reduces the space required for installation to some extent, and improves compactness.

The utility model has a plurality of implementation modes, and all technical schemes formed by adopting equivalent transformation or equivalent transformation all fall within the protection scope of the utility model.

Claims (7)

1. Unstacker, including the side bearer that is located the direction of delivery both sides of conveyer, two be provided with respectively on the side bearer and lift mechanism, its characterized in that: the lifting mechanism comprises two rotating shafts which are rotatably arranged on a cross beam of the side frame, each rotating shaft is respectively connected with a supporting arm and a linkage arm, a linkage rod is connected between the two linkage arms, the linkage rod is pivoted with the two linkage arms, one linkage arm is also pivoted with one end of a driving device positioned between the two rotating shafts, the other end of the driving device is pivoted on the support, the driving device drives the two supporting arms to synchronously rotate between a first position and a second position, the rotation directions of the two supporting arms are opposite, and at the first position, the supporting arms extend to the position above the conveying surface of the conveyor; in the second position, the support arm is located outside of the conveyor.

2. An unstacker according to claim 1, characterized in that: the linkage rod is connected with the linkage arm through a rod end joint bearing.

3. An unstacker according to claim 1, characterized in that: the rotating shaft is arranged on the cross beam through a bearing with a seat positioned above and below the cross beam.

4. An unstacker according to claim 1, characterized in that: one of the linkage arms is S-shaped or Z-shaped, the other linkage arm is L-shaped, the S-shaped or Z-shaped linkage arm is coaxially connected with a rotating shaft, a first end of the linkage arm, which is deviated to the outer side of the side frame, is pivoted with the driving device, a second end of the linkage arm is pivoted with one end of the linkage rod, the other end of the linkage rod is pivoted with a rotating shaft, which is deviated to the outer side of the side frame, of the L-shaped linkage rod, and the other end of the L-shaped linkage rod is pivoted with the other rotating shaft.

5. An unstacker according to any one of claims 1 to 4, wherein: the conveyer includes the belt conveyor who two clearances set up, and every belt conveyor's the outside is provided with the limiting plate that is located its conveying face top.

6. An unstacker according to claim 5, wherein: the jacking mechanism is arranged between the two belt conveying mechanisms and comprises a supporting table, the supporting table is driven to jack through a first air cylinder and a second air cylinder, the first air cylinder is fixed on the base, an air cylinder shaft of the first air cylinder faces upwards and is connected with a lifting plate, the lifting plate is provided with a second air cylinder, and the second air cylinder is located below the lifting plate, extends to the upper portion of the lifting plate and is connected with the supporting table.

7. An unstacker according to claim 6, wherein: and a group of limiting cylinders which are positioned at two sides of the jacking mechanism and close to the limiting plates are arranged on the inner side of each side frame, and the group of limiting cylinders are perpendicular to the conveying surface of the conveyor.

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