JP2022097231A - Load traverse transport mechanism on de-stacking device - Google Patents

Abstract

To provide a load traverse transport mechanism on a de-stacking device that solves such problems with a conventional de-stacking device as it needs to take a larger occupying area, and load has a risk of falling during transfer depending on the shape of the load.SOLUTION: The load traverse transport mechanism of the de-stacking device includes: a load supply conveyor at the longitudinal position in the pickup circulation direction of the load; and a one-plane load transport conveyor that supplies the picked-up load in a one-plane unit to the downstream. The de-stacking device includes: a bottom lift; a slat conveyor unit provided above the bottom lift and formed of slats on parts in a constant length of the right and left chains in the circulation direction; and a holding mechanism that is provided above the slat conveyor unit and holds the one-plane load from the side face.SELECTED DRAWING: Figure 1

Description

The present invention relates to a lateral movement transport mechanism for loads in a step disassembling device that laterally moves the loads stacked on a pallet in units of one plane and conveys them to a predetermined facility downstream.

Conventionally, a step disassembling device has been used in which a load stacked on a pallet is laterally moved in units of one plane (hereinafter, also referred to as a one-plane load) and transported to a predetermined facility downstream. This is usually composed of three compartments of moving components. First, in the first compartment, among the multiple stages of loads stacked in the pallet case, the uppermost load is supplied to the second compartment for gripping and transporting, which is the next process. It consists of a first section lift unit, and then in the second section, it consists of a second section lateral movement lift unit that conveys the load that has been grasped and transported to the third section downstream in one plane unit, and in the third section, it consists of one plane unit. It consists of a third compartment lift unit that takes out the load from the second compartment, moves it laterally, and transfers it to a downstream conveyor.

As a step-disassembling device including such a three-section moving component, for example, one disclosed in Patent Document 1 is known.

The step disassembling device disclosed in Patent Document 1 includes a plurality of conveyors for transporting a group of articles loaded on a pallet, an elevating platform (first section) for raising and lowering a conveyor on which the group of articles is placed, and an elevated article. It consists of a transfer device (second section) that grips and transfers the uppermost aggregate from the group from four sides, and an unloading conveyor (third section) that unloads and sends out the gripped aggregate to the transfer destination. Has been done.

Japanese Unexamined Patent Publication No. 2009-2152026

However, for example, the conventional step-disassembling device disclosed in Patent Document 1 is composed of three sections including a conveyor, an elevating table, a transfer device, and an unloading conveyor, so that the entire device becomes large-scale and the occupied area of each device is increased. It is necessary to take a large amount, and there is a risk that the load will be dropped and damaged due to vibration and inertial force due to lateral movement when the transfer device grips and conveys the one-plane load. In other words, the conventional step-disassembling device cannot perform a reliable gripping and holding function due to the shape of the load and vibration during transportation, and the posture of the load becomes unstable during the transfer, so that the load cannot be transferred in a correct order. There was a risk of falling in the middle of. In particular, since it is composed of three sections, there is a high possibility that the load will fall and be damaged due to vibration during transfer due to the large transfer points and transfer distances.

The present invention is a step-off device in which a load supply conveyor and a one-plane load transfer conveyor that supplies a picked-up one-plane unit load downstream are arranged at front and rear positions in the load pickup flow direction. A lower lift provided at the bottom of the machine frame to raise and lower the load, a slat conveyor unit arranged above the lower lift, and slat conveyors erected at a fixed length in the flow direction of the left and right chains, and a slat conveyor. It is intended to provide a lateral movement transport mechanism for a load in a step-off device, which is arranged above the unit and comprises a gripping mechanism for gripping a one-plane load from the side surface.

In addition, the slat conveyor unit is composed of a horizontal conveyor section and a vertical conveyor section by bending the conveyor body at a suspension angle portion, and the horizontal conveyor section is located substantially directly below the upper gripping mechanism and accompanies the rotation of the conveyor body. It is characterized in that the front-rear length of the slats is configured to be substantially opposite to the front-rear length of the load in one plane unit gripped by the gripping mechanism.

According to the invention according to claim 1, the lateral movement transport mechanism of the load in the step-off device is a step-off device, and the step-off device is a lower lift provided at the lower part of the machine frame for raising and lowering the load, and a lower part. A slat conveyor unit that is placed above the lift and has slats erected at a fixed length in the flow direction of the left and right chains, and a slat conveyor unit that is placed above the slat conveyor unit to grip a flat load from the side. The slat conveyor unit is composed of a mechanism, and the slat conveyor unit is the uppermost load that has risen from the lower lift due to the slat being erected as part of the conveyor flow process. It rises from between the chains to just below the grip mechanism.

The load on the uppermost layer is in a state where the side surface is gripped by the gripping mechanism directly above and gripped by the gripping mechanism. In such a state, the load below the flat load on the uppermost layer is separated and descends downward while being placed on the lower lift. Next, the slat conveyor unit is moved to move the conveyor to a position where the load on the uppermost layer can be received by the slat, and the slat is displaced to a position below the gripping mechanism. Then, if the conveyor is further rotated, the uppermost layer load on the slat is transferred to the one-plane load transfer conveyor at the other end.

In this way, the one-plane load on the uppermost layer of the load initially loaded on the pallet is gripped by the gripping mechanism in the vertical positional relationship between the slat conveyor unit and the lower lift below it, and is transferred onto the slat. Since the conveyor unit transports the product to the next process, a one-plane load conveyor for downstream supply, the uppermost layer of the load is collaborated with the lower lift, the slat conveyor unit, and the gripping mechanism, which are arranged vertically at one position. The load can be picked up and transferred to a predetermined position, which has the effect of being able to pick up and transport the load efficiently by occupying the place of the device, and also because the flat slats receive and transport the top layer load. There is an effect that a reliable gripping and transporting function can be achieved.

Further, according to the invention of claim 2, the slat conveyor unit is composed of a horizontal conveyor portion and a vertical conveyor portion by bending the conveyor main body at a suspension angle portion, and the horizontal conveyor portion is an abbreviation for an upper gripping mechanism. Since it is located directly below and the front-rear length of the slats is configured to be substantially opposite to the front-rear length of the load in one plane unit gripped by the gripping mechanism as the conveyor body rotates, it rises with the operation timing of the conveyor. By adjusting the timing of slat loading of the upper layer load, it is possible to reduce the occupied area of the device as much as possible with the minimum operating mechanism and to improve the efficiency of the transfer work of the stacked load.

It is a front view for demonstrating the structure of the lateral movement transport mechanism of a load in the step disassembling apparatus which concerns on this embodiment. It is a figure explaining the state which formed the vertical conveyor part by the conveyor body which concerns on this embodiment. It is a figure explaining the state which formed the parallel conveyor part by the conveyor main body which concerns on this embodiment. It is a perspective view explaining the structure of the conveyor body which concerns on this embodiment. It is a front view explaining the supply form of the step disassembling device which concerns on this embodiment. It is a front view explaining the carry-out form of the step disassembling device which concerns on this embodiment. It is a front view explaining how the step disassembling device which concerns on this embodiment supplies a one-plane load to a downstream one-plane load transfer conveyor. It is a front view explaining the form in which a plurality of one-plane load conveyors are provided up and down. It is a perspective view explaining the structural example of the left-right chain. It is a perspective view explaining the structural example of the left-right chain. It is a front view explaining the shape example of a conveyor body.

The gist of the present invention is a step-off device in which a load supply conveyor and a one-plane load transfer conveyor that supplies a picked-up one-plane unit load downstream are arranged at front and rear positions in the load pickup flow direction. Is a lower lift provided at the lower part of the machine frame for raising and lowering the load, and a slat conveyor unit arranged above the lower lift and having a loading surface erected at a fixed length in the flow direction of the left and right chains. The conveyor belt conveyor unit is arranged above the slat conveyor unit and comprises a gripping mechanism for gripping a one-plane load from the side surface.

In addition, the slat conveyor unit is composed of a horizontal conveyor section and a vertical conveyor section by bending the conveyor body at a suspension angle portion, and the horizontal conveyor section is located substantially directly below the upper gripping mechanism and accompanies the rotation of the conveyor body. It is characterized in that the front-rear length of the slats is configured to be substantially opposite to the front-rear length of the load in one plane unit gripped by the gripping mechanism.

Therefore, the present invention devises the configuration of the step-off device in the step-off device arranged between the supply conveyor arranged upstream and the one-plane load transfer conveyor arranged downstream. As a result, it is possible to reduce the occupied area as much as possible and prevent the load from being damaged due to the load falling. Hereinafter, an example of the embodiment of the present invention will be described in detail with reference to the drawings.

The present embodiment relates to the lateral movement transport mechanism A of the load in the step disassembling device 12.

As shown in FIG. 1, at the front and rear positions of the step disassembling device 12 in the pick-up distribution direction of the load, a load supply conveyor 10 and a one-plane load transfer conveyor 11 that supplies the picked-up one-plane unit load C downstream are provided. It is arranged.

Further, although the one-plane load transfer conveyor 11 of the present embodiment is arranged on the opposite side of the load supply conveyor 10 with the step disassembling device 12 interposed therebetween, the one-plane load transfer conveyor 11 is arranged in the same direction as the load supply conveyor 10. It may be arranged, or the load supply conveyor 10 and the one-plane load transfer conveyor 11 may be arranged so as to be arranged at a substantially right angle in a plan view.

As shown in FIG. 1, the step disassembling device 12 moves the lower lift 20 provided at the lower part of the machine frame for raising and lowering the load B and the load on the lower lift 20 to the one-plane load transfer conveyor 11. It is composed of the lateral movement transport mechanism A of the above. The lateral movement transfer mechanism A is arranged above the lower lift 20 and above the slat conveyor unit 30 and the slat conveyor unit 30 which is configured by erection the slat 35 on a fixed length portion of the left and right chains 34 in the distribution direction. It is characterized in that it is provided and is configured by a gripping mechanism 50 that grips the one-plane load C from the side surface.

Further, the slat conveyor unit 30 provided in the lateral movement transport mechanism A of the step disassembling device 12 is composed of a horizontal conveyor portion and a vertical conveyor portion by bending the conveyor main body at a suspension angle portion, and the horizontal conveyor portion is gripped upward. It is located directly under the mechanism so that the front-back length of the slats is at least substantially opposite to the front-back length of the load in one plane unit gripped by the gripping mechanism (preferably longer than the front-back length) as the conveyor body rotates. It is characterized by being configured in.

In other words, the lateral movement transfer mechanism A of the load in the step disassembling device 12 according to the present embodiment has a configuration of a slat conveyor unit 30 for carrying out the one-plane load C to the one-plane load transfer conveyor 11 and a slat conveyor unit. The biggest feature is that the configuration of the gripping mechanism 50 on which the one-plane load C is placed is devised.

The load supply conveyor 10 powers a pallet P on which a load (hereinafter referred to as a load B) stacked so as to have a rectangular shape in a plan view is carried by power, and supplies the pallet P to the stage disassembling device 12 in the next process. It is a device for. The load supply conveyor 10 is not particularly limited as long as it has dimensions and power capable of transporting and moving the load B and the pallet P, and for example, a belt conveyor, a roller conveyor, a chain conveyor, or the like can be adopted.

The step disassembling device 12 separates the one-plane load C located on the uppermost surface of the layered load B supplied from the load supply conveyor 10 from the other load B and transfers it to the downstream one-plane load transfer conveyor 11. It is a device for. In the step disassembling device 12, various devices constituting the step disassembling device 12 are installed in a machine frame formed by vertically and horizontally combining frames made of metal (for example, iron or the like) and partitioning them into a square shape. It is configured.

As specific various devices of the step-displacement device 12, as shown in FIG. 1, a lower lift 20 in which the load B on the pallet P conveyed from the load supply conveyor 10 can be vertically moved up and down, and a step-displacement device A gripping mechanism 50 is arranged at the uppermost stage of the twelve, and a one-plane load C of the load B displaced by the ascending movement of the lower lift 20 can be gripped from four side surfaces, and is arranged below the gripping mechanism 50. There is a slat conveyor unit 30 that carries out the uppermost one-plane load C gripped by the gripping mechanism 50 to the one-plane load transfer conveyor 11 in the next process.

The lower lift 20 is interlocked and connected by a transmission cable 23 interlocked with a rotating body 60 pivoted at the upper left and right ends of the machine frame and an elevating motor 22 on one side, and a pallet is operated by the operation of the transmission cable 23. It is configured so that the inside of the machine frame can be vertically moved up and down with P placed.

The step disassembling device 12 of the present embodiment performs step disassembling of the load B on the pallet P through the following steps. That is,
(1) The pallet P on which the load B is placed moves from the load supply conveyor 10 to the lower lift 20 of the step disassembling device 12.
(2) The elevating motor 22 winds up the transmission cable 23 by rotating the rotating body 60 in the ascending direction. As the transmission cable 23 is wound up, the lower lift 20 rises toward the gripping mechanism 50 arranged above the step disassembling device 12.
(3) The gripping mechanism 50 grips the one-plane load C constituting the uppermost surface of the load B on the pallet P that has risen together with the lower lift 20 from four side surfaces.
(4) The elevating motor 22 pays out the transmission cable 23 by rotating the rotating body 60 in the downward direction. As the transmission cable is extended, the lower lift 20 descends toward the lower side of the step disassembling device 12.
(5) When the lower lift 20 is lowered, the one-plane load C gripped by the gripping mechanism 50 and the load B remaining on the pallet P are separated.
(6) The slat conveyor unit 30 rises toward a load receiving position near the bottom of the one-plane load C gripped by the gripping mechanism 50. Further, the slat 35 of the slat conveyor unit 30 moves so as to face the one-plane load C with the ascending movement.
(7) The gripping mechanism 50 places the one-plane load C on the slat 35 of the slat conveyor unit 30.
(8) The slat conveyor unit 30 that has received the one-plane load C adjusts the position so that the height of the slat conveyor unit 30 is substantially the same as the height of the one-plane load transfer conveyor 11, which is the next step of the stage disassembling device 12, and then the slat 35 is used. The one-plane load C is moved and carried out to the one-plane load transfer conveyor 11.

As shown in FIG. 1, the conveyor body 36 included in the sprocket unit 30 has a drive shaft 31 capable of rotating in a direction in which the one-plane load C is discharged toward the one-plane load transfer conveyor 11, and a drive shaft 31. A driven shaft 32 that rotates following movement, a sprocket 33 arranged at the left and right ends of the drive shaft 31 and the driven shaft 32, a left and right chain 34 arranged so as to mesh with the sprocket 33, and a left and right chain 34. It is provided with a slats 35 erected in a part as a component.

Specifically, as shown in FIG. 4, the conveyor body 36 includes one drive shaft 31, a driven shaft 32a arranged in the vertical direction of the drive shaft 31, and a driven shaft 32b arranged in the horizontal direction of the driven shaft 32a. The left and right chains 34 (hereinafter, the left and right chains are also referred to as the left chain 34L and the right chain 34R) are suspended to form an overall inverted L shape. The drive shaft 31 and the driven shaft 32 (32a, 32b) are configured to be longer in the longitudinal direction than the front-rear width of the load B (one-plane load C). Further, the width of the space between the driven shaft 32a and the driven shaft 32b is configured to be longer than the left-right width of the load B (one-plane load C). Further, as shown in FIG. 10, the conveyor body 36 can be freely selected from a substantially square shape or a U shape having a driven shaft 32c in the horizontal direction of the drive shaft 31.

The conveyor body 36 is composed of slats 35 having an article placing function erected between the left and right chains 34. The slats 35 having an article placing function erected between the left and right chains 34 may have, for example, square pipe-shaped slats, round pipe-shaped slats, or mesh-shaped plate-shaped slats, and slats having various shapes and structures. Can be considered. In short, the structure of the slats 35 described in the present specification is erected between the left and right chains 34 that rotate in this way, and the shape structure thereof does not matter as long as it has an article placing function.

The slat 35 of the present embodiment is configured by erection of a slat 35a having a square cross section on a chain 34a with an attachment which is adopted as a left and right chain 34.

As shown in FIG. 9, the attached chain 34a includes a cylindrical chain roller 70 among the conveyor members constituting the conveyor body 36 and a side plate 71 on which the chain roller 70 is mounted, and is provided on the left and right sides. On at least one side of the left and right long edge portions of the side plate 71, a connecting plate 72 formed by bending the upper edge portion so as to project horizontally is formed (FIG. 9A is on the left side, FIG. 9). (B) is a diagram showing a chain 34a with an attachment in which connecting plates 72 are formed on both the left and right sides.) The connecting plate 72 is connected to the left and right end edges of the slats 35 via the screw holes 73.

In the slat 35 in the present embodiment, the end edge portion of the slat 35a having a square cross section is connected and fixed to the horizontal connecting plate 72 by a screw body via the screw hole 73.

In this way, by adopting the attached chain 34a for the left and right chains 34, it is possible to manufacture the step disassembling device 12 in which the length of the slats 35 is adjusted according to the dimensions of the one-plane load C to be conveyed. .. Note that FIG. 2A shows a plan view of the conveyor body 36 in which the slat 35 is displaced to the vertical conveyor portion 38, and FIG. 2B shows a state in which the slat 35 is displaced to the vertical conveyor portion 38. The front view of the conveyor main body 36 of is shown. Further, FIG. 3 (a) shows a plan view of the conveyor main body 36 in a state where the horizontal conveyor portion 37 described later is formed, and FIG. 3 (b) shows a front view of the conveyor main body 36 in a state where the horizontal conveyor portion 37 is formed. show.

The slats 35 follow the left and right chains 34 and become deformable like vertical, flat, and bent along the suspended shape of the left and right chains 34. Further, it can be freely configured as long as it has a length, width (vertical width in the plan view of FIGS. 2A and 3A) and strength on which the one-plane load C can be placed by the gripping mechanism 50. can. As an example, the slats 35 can be formed into a rectangular shape in a plan view having a width of 1200 cm and a length of 1200 cm by suspending a plurality of metal square pipes having a length of 20 mm, a width of 30 mm, and a depth of 1200 mm on the left and right chains 34.

Further, as the slats 35, resin or rubber can be adopted as a material as long as it satisfies the desired strength and durability. For example, if the object to be transported is a lightweight object, the manufacturing cost can be reduced by adopting the slat 35 made of a resin material. Further, if the metal slats 35 as in the present embodiment are adopted, even if the object to be transported is a heavy object, it is possible to deal with it, and the frequency of complicated maintenance such as repair is as small as possible. Can be.

Further, the conveyor body 36 having a substantially inverted L-shape as a whole is not limited to an inverted L-shape as a suspension shape, but may have an overall substantially rectangular shape as shown in FIG. 10 or a substantially U-shaped suspension shape. However, among the suspended forms, the meshing corners with the sprocket 33 are all suspended forms that form an inverted L-shaped chain. Note that FIG. 10A shows a state in which the slats 35 are located on the horizontal conveyor portion 37 in the conveyor body 36 configured in a substantially rectangular shape, and FIG. 10B shows a conveyor configured in a substantially rectangular shape. The main body 36 shows a state in which the slats 35 are located on the vertical conveyor portion 38.

Further, as a characteristic of the conveyor body 36, since the slat 35 is erected between the left and right chains 34 at a constant front-rear width in the conveyor flow direction, the portion where the slat 35 is not erected is loaded between the left and right chains 34. The passage space 39 is formed, and the one-plane load C raised by the lower lift 20 passes through the space between the load passage spaces 39 and faces the gripping mechanism 50 above the one-plane load C. In this way, the width between the left chain 34L and the right chain 34R forming the load passage space 39 is set to a width that does not interfere with the width of the one-plane load C of the load B when the lower lift 20 rises.

Since a slat 35 having a certain front-rear length toward the conveyor flow direction is formed in a part of the conveyor main body 36 having the load passage space 39, a flat surface that passes through the load passage space 39 from below and rises. The load C is placed on the slats 35 which have been transported horizontally.

That is, the uppermost one-plane load C that has passed through the load passage space 39 and has risen is in a state of ensuring a sufficient distance from the load B remaining on the pallet P after being gripped by the gripping mechanism 50. Next, the separated one-plane load C is placed on the slat 35 of the slat conveyor unit 30 that has moved to the vicinity of the bottom with the operation of ascending to the load receiving position of the slat conveyor unit 30.

The state in which a sufficient distance is secured between the one-plane load C gripped by the gripping mechanism 50 and the load B remaining on the pallet P means that the one-plane load C gripped by the gripping mechanism 50 is larger than the load passing space 39. It is located above, and the load B remaining in the lower lift 20 is located below the load passage space 39. Further, it means that the one-plane load C and the load B are in a position where they do not collide with the slats 35 which are driven by the operation of the left and right chains 34.

As described above, the conveyor body 36 has a configuration in which the load passage space 39 is formed by installing the slats 35 only in a part between the left and right chains 34. Since the conveyor body 36 is provided with the load passage space 39, the gripping mechanism 50 arranged above the slat conveyor unit 30 can grip the one-plane load C conveyed by the lower lift 20.

Specifically, as shown in FIG. 5, the slat conveyor unit 30 displaces the slat 35 toward the vertical conveyor portion 38 when the lower lift 20 rises, and the lower lift between the left and right chains 34 in the horizontal conveyor portion 37. A load passage space 39 that does not interfere with the ascent and descent of the 20 is formed. Therefore, the load B raised by the lower lift 20 rises inside the device 12 without interfering with the slats 35 in order to pass through the load passage space 39. This makes it possible to grip the one-plane load C on the gripping mechanism 50. Note that FIG. 5 is a front view illustrating a state in which the conveyor body 36 has changed to a supply form.

When the lower lift 20 passes through the load passage space 39 and rises to near the lower side of the gripping mechanism 50 arranged at the uppermost stage of the step disassembling device 12, the gripping mechanism 50 forms a one-plane load forming the uppermost layer of the load B. Grasp the four sides of C.

The gripping mechanism 50 includes a plate-shaped gripping member 51 arranged on the peripheral edge of a substantially square shape so as to face the load B, and the gripping member 51 fluctuates inward to move the one-plane load C into four. Grip from the side.

The gripping force of the gripping mechanism 50 can be freely changed according to the exterior material and the number of gripping objects constituting the one-plane load C, but does not damage the exterior (and contents) of the gripping object. It is preferable to set the gripping force to a certain degree.

Further, the gripping mechanism 50 may be provided with a configuration in which the one-plane load C can be smoothly carried out to the one-plane load transfer conveyor 11 in the next process. That is, among the gripping members 51 provided in the gripping mechanism 50, at least the gripping member 51a arranged on the one-plane load transfer conveyor 11 side is opened outward with the shaft 52 provided at the upper edge thereof as a base point. Since the lower end of the gripping member 51 is located above the height of the one-plane load C placed on the slat 35, the structure does not collide with the one-plane load C carried out to the one-plane load transfer conveyor 11. Can also be provided. According to such a configuration, in order to prevent the gripping member 51a from interfering with the movement of carrying out the one-plane load C, the arrangement of a plurality of loads constituting the one-plane load C may be broken or the load may fall from the slat 35. You can prevent it from happening. Moreover, since the one-plane load transfer conveyor 11 can be arranged at substantially the same height as the gripping mechanism 50, the one-plane load C can be smoothly carried out, and the step-off device 12 and the one-plane load transfer conveyor 11 can be arranged. It is possible to more freely select the positional relationship in which the above is arranged.

Here, the slat conveyor unit 30 is provided with an elevating device 40 that allows the conveyor body 36 to be elevated and lowered in the vertical direction to finely adjust the height.

The elevating device 40 may have a configuration in which the height of the conveyor body 36 can be adjusted, and as an example, as shown in FIGS. 1 and 8, a drive shaft 41 rotated by a power source and a drive shaft 41 below the drive shaft 41 are used. A driven shaft 42 arranged, a sprocket 43 arranged at the left and right ends of the drive shaft 41 and the driven shaft 42, and a vertical suspension chain 44 arranged so as to mesh with the sprocket 43 are provided, and the drive shaft 41 is provided. The rotation of the sprocket can be configured to drive the driven shaft 42 via the vertical suspension chain 44.

The vertical suspension chain 44 of the elevating device 40 is connected to the end of the conveyor body 36, and the height of the conveyor body 36 can be adjusted upward and downward according to the movement of the vertical suspension chain 44 due to the rotation of the drive shaft 41.

As described above, since the slat conveyor unit 30 is provided with the elevating device 40, the conveyor body 36 can approach the bottom of the one-plane load C gripped by the gripping mechanism 50, so that the one-plane loading mechanism 50 can approach the bottom. The distance when the load C is placed on the slat 35 can be made as small as possible, the impact of dropping on the slat 35 can be prevented, and the load can be prevented from being damaged.

Therefore, when the lower lift 20 descends downward to secure a sufficient distance between the one-plane load C gripped by the gripping mechanism 50 and the load B remaining on the pallet P, the conveyor body 36 is lifted. By 40, it rises to near the bottom of the one-plane load C. Further, as the conveyor body 36 rises, as shown in FIG. 6, the slats 35 move to the horizontal conveyor portion 37 due to the rotation of the left and right chains 34. Note that FIG. 6 is a front view illustrating a state on which the slats 35 in the conveyor body 36 are about to receive the one-plane load C gripped by the gripping mechanism 50.

As a result, the one-plane load C gripped by the gripping mechanism 50 is placed on the slats 35. Specifically, the gripping member 51 is released outward to release the gripping of the flat load C, and the flat load C is placed on the slat 35 that has moved to the position of the horizontal conveyor portion 37.

The gripping mechanism 50 in the present embodiment separates the one-plane load C from the load B of the pallet P at a predetermined position above the slat conveyor unit 30, or places the one-plane load C on the slat 35 of the slat conveyor unit 30. It is configured to operate only by doing. As a result, the gripping mechanism 50 does not move up, down, left, or right while gripping the one-plane load C, so that the one-plane load C falls from the gripping mechanism 50 due to vibration during movement or inertial force at the time of starting or stopping. It is possible to eliminate the risk of doing so.

As described above, since the slat conveyor unit 30 forms the slat 35 in a part of the flow direction and the other part forms the load passage space 39, the one-plane load C to be carried up from the lower lift 20 is carried out. When facing the load passage space 39, it rises without interfering with the conveyor body 36, waits for the gripping operation of the gripping mechanism 50, and if the gripping mechanism 50 is started to be gripped, the uppermost one-plane load is loaded. Only C is picked up, and the load B in the lower layers is restored to its original position by the descent of the lower lift 20.

The one-plane load transfer conveyor 11 is a device for supplying the one-plane load C transferred by the stage disassembling device 12 downstream. As the one-plane load transfer conveyor 11, the one having the same configuration as the load supply conveyor 10 may be adopted.

Further, in the present embodiment, one flat load transfer conveyor 11 is provided as shown in FIG. 1, but the configuration is not limited to this. That is, as shown in FIG. 8, a plurality of one-plane load transfer conveyors 11 can be arranged at different heights.

Here, if a plurality of one-plane load transport conveyors 11 are configured to be connected to different transport destinations, the selection of which transport destination the one-plane load C is to be delivered to is performed by raising and lowering the slat conveyor unit 30. Therefore, it is possible to freely perform step-off work that can be appropriately changed according to the circumstances of the transportation destination such as the type of luggage and the stacking method.

According to the lateral movement transport mechanism A of the load in the step-disassembling device of the present embodiment described above, the step-disassembling device 12 includes a lower lift 20 provided at the lower part of the machine frame for raising and lowering the load B, and a lower lift 20. The slat conveyor unit 30 is arranged above and the slat 35 is erected on a fixed length portion in the flow direction of the left and right chains 34, and the slat conveyor unit 30 is arranged above the slat conveyor unit 30 to grip a flat load from the side surface. By forming the grip mechanism 50 together with the gripping mechanism 50, the area occupied by the installation can be made as small as possible.

Specifically, the first section for supplying the one-plane load by the conventional step disassembling device, the second section for carrying the one-plane load C gripped and conveyed from the first section to the downstream, and the one-plane load C. The step disassembling device 12 of the present embodiment is above the first compartment (lower lift 20) as shown in FIG. 1, while it is composed of a third compartment that is taken out from the second compartment and transferred to the conveyor. A second section (slat conveyor unit 30) is provided, and the structure is such that the second section (slat conveyor unit 30) is carried out to the adjacent third section (one-plane load transfer conveyor 11).

As described above, the step-disassembling device 12 of the present embodiment has a configuration in which the step-disassembling work and the delivery / transporting work to the next process, which have been performed in the conventional first section and the second section, can be performed in one section. Therefore, the work area occupied by each section can be made as small as possible.

Further, according to the lateral movement transport mechanism A of the load in the step disassembling device of the present embodiment, the gripping mechanism 50 is arranged above the slat conveyor unit 30 so that the elevating position of the slat conveyor unit 30 can be adjusted. It is possible to prevent the one-plane load C from falling due to a large step, and it is possible to shorten the time required for one step disassembling process.

Specifically, since the slat conveyor unit 30 provided with the elevating device 40 can approach the lower part of the gripping mechanism 50, the gripping mechanism 50 does not need to move up, down, left and right while gripping the one-plane load C. .. As a result, it is possible to prevent the one-plane load C from falling due to the inertial force due to the movement or stop of the gripping mechanism 50 and the vibration during the movement.

Further, in the conventional gripping mechanism 50, even if it is changed up, down, left and right, it can only move slowly in order to prevent the load from falling. By performing the one-plane load C by the slat conveyor unit 30 as in the present embodiment, it is possible to perform step disassembling by agile operation without dropping the one-plane load C. That is, by disposing the gripping mechanism 50 above the slat conveyor unit 30, the time required for each step disassembling step can be made as short as possible.

A Lateral moving transport mechanism 10 Load supply conveyor 11 One-plane load transport conveyor 12 Step disassembling device 20 Lower lift 21 Top structure 22 Lifting motor 23 Transmission cable 30 Slat conveyor unit 31 Drive shaft 32 Driven shaft 33 Sprocket 34 Left and right chain 34a Chain with attachment 35 Slat 36 Conveyor body 37 Horizontal conveyor 38 Vertical conveyor 39 Load passage space 40 Elevating mechanism 41 Drive shaft 42 Driven shaft 43 Sprocket 44 Vertical suspension chain 50 Grip mechanism 51 Grip member 52 Shaft 60 Rotating body 70 Chain roller 71 Side plate 72 Connecting plate 73 Screw hole B Load C Flat load P Pallet

Claims (2)

In a step-off device in which a load supply conveyor and a one-plane load transfer conveyor that supplies a picked-up one-plane unit load downstream are arranged at front and rear positions in the load pickup distribution direction.
The step disassembling device is a slat conveyor provided above the lower lift provided at the bottom of the machine frame to raise and lower the load, and slat is erected at a fixed length in the distribution direction of the left and right chains. With the unit,
A lateral movement transport mechanism for a load in a step disassembling device, which is arranged above a slat conveyor unit and comprises a gripping mechanism for gripping a flat load from the side surface. The slat conveyor unit consists of a horizontal conveyor section and a vertical conveyor section by bending the conveyor body at the suspension angle portion, and the horizontal conveyor section is located substantially directly below the upper gripping mechanism and moves back and forth between the slat as the conveyor body rotates. The lateral movement transport mechanism for a load in the step disassembling device according to claim 1, wherein the length is configured to be substantially opposite to the front-rear length of the load in one plane unit gripped by the gripping mechanism.

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