JPS6228045B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to an ascending conveyance device that conveys objects to be conveyed upward.

[Technical background of the invention]

This type of device can easily extend the conveyance distance, has excellent conveyance capacity, and can be easily connected to the carry-in conveyor and the carry-out conveyor. a frame having a section and forming a conveyance path between the carrying-in section and the carrying-out section; and a frame arranged at equal intervals on the carrying path and carrying-out section of the frame and capable of moving forward and backward from the outside with respect to the carrying path and the carrying-out section. A plurality of supports are formed on the frame and normally extend into the conveyance path and the unloading section, and the frame is arranged at equal intervals along the conveyance path and is formed to be able to move up and down along the conveyance path. A plurality of vertically movable bodies are formed to move forward and backward from the outside of the path and normally extend into the conveyance path, and the plurality of vertically movable bodies are raised and lowered, and as they rise, objects to be conveyed are transported from the loading section through each support body. an elevating drive mechanism for a vertically movable body that is intermittently scooped up and conveyed to a carry-out section; and when the vertically movable body is raised, the conveyed object scooped up from the carry-in section and the lower support by the vertically movable body passes through the upper support. At this time, each support is retracted to the outside of the conveyance path and the unloading section, and after the conveyed object has passed, each support is advanced into the conveyance path and the unloading section to remove the conveyed object on the vertically movable body when the vertically movable body is lowered. A retraction drive mechanism for the support body received by the upper support body, and a conveyed object supported by the lower support body and the loading section after the conveyed object is received by the upper support body when the vertically movable body is lowered. An ascending conveyance device is proposed which is equipped with a retraction drive mechanism for vertically movable bodies that retracts each vertically movable body to the outside of a conveyance path when passing an object, and advances each vertically movable body into the conveyance path after passing an object to be conveyed. It was done.

[Problems with background technology]

In such an ascending conveyance device, multiple vertically moving bodies are raised and lowered in synchronization, and moved forward and backward in synchronized fashion, so these drive mechanisms tend to be complex, and the timing of advances and retreats must also be precise. As a result, the control becomes complicated and the operation tends to become uncertain.

[Purpose of the invention]

The present invention has been made in view of the above-mentioned points, and it is an object of the present invention to simplify the drive mechanism of the vertically movable body, simplify its control, and provide an ascending conveyance device that operates reliably.

[Summary of the invention]

The present invention provides the above-mentioned elevating conveyance device, in which the plurality of vertically moving bodies are pivoted at equal intervals at their base ends to elevating rods that are supported by the frame so as to be able to rise and lower, and each of the vertically movable bodies has an interlocking rod. By raising and lowering the lifting rod with the lifting drive mechanism, each vertically moving body is synchronously driven up and down, and each vertically moving body is moved forward and backward in synchronization by the interlocking rod. However, normally, its tip end advances into the conveyance path due to its own weight, and the evacuation drive mechanism of the vertically movable body moves the movable side opposite to the fixed side of the parallelogram link with one side fixed to the frame. It is provided as an operating guide, and normally this operating guide advances to a position relative to the tip of the vertically movable body due to its own weight, and when the vertically movable body rises, this operating guide is pushed by the tip of the vertically movable body and retreats. In addition, when the vertically movable body is lowered, the tip of the vertically movable body comes into contact with this operating guide and retreats to the outside of the conveyance path.With this configuration, the vertically movable body can synchronize its elevation and retreat, respectively. At the same time, the forward and backward movement can be mechanically linked to the vertical movement.

[Embodiments of the invention]

Next, the present invention will be specifically explained based on an embodiment shown in the drawings.

In FIGS. 1 to 3, 1 is a frame, and this frame 1 is constructed by connecting four columns 2 at predetermined intervals in the vertical direction with horizontal rods 3. is set, and an unloading section 5 is set above, and this loading section 4
A vertical conveyance path 6 is formed between the conveyance path 6 and the unloading section 5, and four vertical guide frames 7 supported by the frame 1 via support members (not shown) are arranged at the four corners of the conveyance path 6. has been done.

11 and 12 are supports, and these supports 11 and 12
are arranged at equal intervals in the vertical direction on both sides of the conveyance path 6 and the carry-out section 5.

As shown in FIGS. 4 to 6, the plurality of supports 11 disposed on both sides of the conveyance path 6 are arranged so that the tips and middle portions of the pair of arms 13 are connected to the plate member 14 and the round bar. It is composed of 15 connected parts,
The base end of the arm 13 is rotatably supported by the horizontal rod 3 of the frame 1 via a shaft 16 and a pair of bearings 17, and normally the arm 13 is attached to the horizontal rod 3 by its own weight at a stopper 18. The tip of the round bar 15 extends into the conveyance path 6.
When pushed upward, it rotates outward and upward about the shaft 16, and its tip part retreats to the outside of the conveyance path 6.

Further, although not described in detail, the uppermost support body 12 disposed on both sides of the carrying-out section 5 has two front and rear supports at its tip.
A pair of sprocket wheels 21 are pivotally supported, and an endless chain 2 is attached to the pair of sprocket wheels 21.
2 is wound, and this endless chain 22 is the support body 12.
It is configured to be rotated by a motor 23 provided in the frame 1, and is constructed of a conveyor, and its base end is rotatable on the horizontal rod 3 of the frame 1, similar to the above-mentioned upper support 11. It is supported by the endless chain 2 at its tip due to its own weight.
2 has advanced into the unloading section 5, but when it is pushed upward, it rotates outward and upward around its base end, and the endless chain 22 at its tip retreats to the outside of the unloading section 5. I'm starting to do that.

Reference numeral 31 denotes a vertically movable body, and the vertically movable body 31 is arranged at equal intervals in the vertical direction on both sides of the conveyance path 6 and located in front and behind the supports 11 and 12.

The vertically movable body 31 is formed to be able to move up and down along the conveyance path 6. That is, as shown in FIGS. 4 to 6, each vertically movable body 31 is pivotally attached to an elongated plate-shaped lifting rod 32 with a shaft 33,
The elevating rod 32 is engaged with a vertical guide rail 34 attached to the horizontal rod 3 of the frame 1 via a guide roller 35. In addition, 3
Reference numerals 6 and 37 denote sliding members provided on the guide rail 34, respectively, and serve to smoothly move the elevating rod 32 up and down.

In addition, due to its own weight, the vertically movable body 31 normally comes into contact with a pin-shaped stopper 38 protruding from the lifting rod 32 at the outer lower part of its base end, and its tip advances into the conveyance path 6. However, when it is pushed upward, it rotates outward and upward about the shaft 33, and its tip part retreats to the outside of the conveyance path 6. The forward and backward movements are
By connecting the vertically moving bodies 31 of each stage to the lifting rod 32 via a shaft 40, the vertically movable bodies 31 of each stage are synchronously performed.

Reference numeral 41 denotes an elevating drive mechanism for the vertically movable body 31. This elevating drive mechanism 41 is provided below the loading section 4, and engages the output shaft of a motor 42 with a vertical main shaft 43 via a bevel gear. The upper end is engaged with a horizontal crankshaft 44 via a bevel gear, a crank arm 45 is attached to both ends of this crankshaft 44, and a roller is pivotally supported at the tip of this crank arm 45. A crank rail 46 having a substantially U-shaped cross section is engaged with a pair of front and rear lifting rods 32 erected on both sides of the conveyance path 6.
When the motor 42 is driven, the main shaft 43
Then, the crankshaft 44 rotates, and the crank arms 45 on both sides rotate, whereby the horizontal crank rails 46 on both sides rise and fall, and the vertically movable body 31 moves up and down. They are designed to rise and fall in sync.

51 is a retraction drive mechanism for the supports 11 and 12, and this retraction drive mechanism 51 is connected to the main shaft 43 rotated by the motor 42 of the elevating drive mechanism 41.
The lower end of the horizontal cam shaft 52 is connected via a bevel gear.
A cam 53 is attached to both ends of the camshaft 52, and a drive rod 54, which has a roller that engages with the cam 53 and is pivoted to its lower end, is attached to a bearing 55 on the horizontal rod 3 on both sides of the frame 1. As shown in FIGS. 4 to 6, the drive rod 54 is supported by actuators 56 and 57 so as to be freely raised and lowered.
2, the main shaft 43 and camshaft 52 rotate, causing the cams 53 on both sides to rotate, thereby raising and lowering the drive rods 54 on both sides. A plurality of actuating bodies 56 provided at the upper end of the drive rod 54 push upward the round bars 15 of the plurality of supports 11 disposed on both sides of the conveyance path 6. The body 57 pushes the conveyor-like supports 12 disposed on both sides of the carrying out section 5 upward, so that the supporting bodies 11 and 12 are synchronously retracted to the outside of the conveying path 6 and the carrying out section 5. It's summery. Note that 58 is a rotation stopper for the drive rod 54.

Reference numeral 61 denotes a retraction drive mechanism for the vertically movable body 31, which is provided on the upper part of the frame 1, and has four wires on the outside of the conveyance path 6, as shown in FIGS. 5 and 6. A support rod 62 is erected from the frame 1 via a support member (not shown), and an operating guide 64 is pivotally connected to the support rod 62 via a pair of upper and lower rotating rods 63 to form a parallelogram link. At the same time, a stopper 6 for the lower part of the lower rotating rod 63
5 is attached to the support rod 62, and the vertically moving body 3 is driven by the motor 42.
1 rises, the vertical movable body 31 at the top comes into contact with the lower end surface of the actuating guide 64 and is pushed upward, rotating the actuating guide 64 outward and upward, and in this state, the top end of the vertical movable body 31 is moved outward. The side is the actuation guide 64
Thereafter, the actuation guide 64 moves inward and downward under its own weight, returns to rotation, and is stopped by the stopper 65. When the vertically movable body 31 descends, the actuating guide 64 The bottom surface of the tip comes into contact with the top surface of the actuation guide 64 and the vertical moving body 3
1 rotates outward and upward and retreats to the outside of the conveyance path 6. In this state, the tip of the vertically movable body 31 slides on the outer surface of the actuation guide 64 and passes upward, and then the vertically movable body 31 is designed to rotate back inward and downward under its own weight and advance into the conveyance path 6, and the movement of the vertically movable body 31 at the top stage is transmitted to the vertically movable body 31 at each stage below via the interlocking rod 39. Ru.

71 is a carry-in conveyor; this carry-in conveyor 71
is provided from the front of the frame 1 toward the loading section 4, and a pair of front and rear pulleys 73 are provided on the machine frame 72 on both sides.
The endless belt 74 is wound between the front and rear pulleys 73, and a stopper 75 is provided at the tip of the belt, and a motor (not shown) moves the endless belt 74 on both sides.
4 is now being circulated. Note that the width of the carry-in conveyor 71 is narrower than the interval between the vertically movable bodies 31 on both sides in the advanced state.

A conveyor (not shown) is connected to the carry-in conveyor 71, and a conveyor (not shown) is provided in front or behind the uppermost support body 12, which is made up of the conveyor, to be connected in the advanced state. There is.

P is a pallet as an object to be transported, and an article W can be placed on the upper part of this pallet P.

Next, the operation of this device will be explained with reference to FIG.

The pallet P is carried from a conveyor (not shown) to the carry-in conveyor 71, and the belt 7 of the carry-in conveyor 71
4, it is brought into contact with the stopper 75 and placed on standby in the carry-in section 4.

The motor 42 is driven to rotate the crank arm 45 of the elevating drive mechanism 41 of the vertically movable body 31.

This causes the crank arm 45 to move as shown in FIG. 7A.
When the rotation starts from the state A and moves to C, the vertically movable body 31 at each stage rises from A to C in FIG. Palette P
scoop up and raise it.

At the same time, the cam 53 of the evacuation drive mechanism 51 of the supports 11 and 12 also starts rotating from the state shown in FIG. , as shown in FIG.
At 57, each of the supports 11 and 12 is retracted to the outside of the conveyance path 6 and the unloading section 5, so that the supports 11 and 12 do not interfere with the pallet P and the goods W that are being raised, and the pallet P is prevented from passing. After that, at the position C, the drive rod 54 is lowered to move each support 11, 1
2 advances into the conveyance path 6 and the unloading section 5 due to its own weight.

In addition, at this time, the vertically moving body 31 at the topmost stage also moves to the seventh position.
In Figures B and E, it ascends from A to C and passes through the operation guide 64 of the evacuation drive mechanism 61 of the vertically movable body 31, but at this time, as shown in Figure 7F, it is activated by the rise of the vertically movable body 31. When the guide 64 retreats outward and the vertically movable body 31 is in the state C, the actuating guide 64 comes off from the vertically movable body 31 and the actuating guide 6
4 returns to its original state as shown in FIG. 7G due to its own weight.

Then, when the crank arm 45 further rotates from the state C in FIG. 7A and returns to the state A, the vertical moving bodies 31 at each stage descend from C to A in FIG. 7B, and during this time, the At the position of
Then, before each vertically movable body 31 passes the pallet P transferred to the first stage support 11 and the next pallet P and article W newly conveyed to the carry-in conveyor 71, In FIG.
The vertically movable body 31 of each lower stage is slid on the outer surface of the actuation guide 64 and lowered while retracted outward, and is pivotally connected to the vertically movable body 31 of the uppermost stage via an interlocking rod 39. After the vertically movable body 31 in the uppermost stage moves down to the operating guide 64 after each vertical movable body 31 passes through the pallet P, it becomes a state where it retreats outward like a wrench and descends without being interfered with by the pallet P and the goods W. The vertically movable bodies 31 of each stage move out of the conveyance path 6 due to their own weight.

By repeating these operations, the pallets P and articles W carried into the carry-in section 4 are sequentially and intermittently transferred to the upper support 11, and then ascended to the support 12 of the carry-out section 5. transport.

Then, the pallet P and the articles W placed on the support body 12 of the unloading section 5 are moved by the motor 2 of the support body 12.
The chain 22 rotated by the chain 3 is carried out to the front or rear conveyor (not shown).

In this way, the pallets P carried into the carrying section 4
, by raising and lowering the vertically movable body 31, the upper support body 1
1 and transported to the support body 12 of the unloading section 5, even if the conveyance path 6 is long, by increasing the number of intermediate supports 11, the stroke of the vertically movable body 31 can be reduced. There is no need to lengthen the carrier, and even if the number of intermediate supports 11 is increased, the conveyance capacity will not be reduced.

When carrying in the pallets P, the pallets P are scooped up from below by the vertical moving body 31 in the carrying-in section 4, so there is a considerable degree of freedom in the installation height of the carrying-in conveyor 71, and the connection with other conveyors is extremely easy. This is easy, and since the pallet P is placed from above by the vertical moving body 31 in the carry-out section when carrying out the pallet P, there is a considerable degree of freedom in the installation height of the support body 12 constituted by the conveyor. Connection with other conveyors is also extremely easy.

Also, one motor 42 allows the vertically moving body 31 to
, and the supports 11 and 12 are moved forward and backward, and the movement of the vertically movable body 31 is performed by a non-powered link mechanism using the vertical movement, thereby reducing the initial cost and operating cost. It is inexpensive, and since each operation is mechanically linked, control is also extremely simple.

In addition, in this embodiment, the support body 12 of the unloading section 5
Since the pallet P is constructed with a conveyor, the pallet P conveyed to the unloading section 5 can be conveyed immediately, and other conveying means such as a pusher is not required. Therefore, when installing it on an existing logistics line, it is only necessary to connect it to another conveyor.

In addition, in the above-mentioned embodiment, as shown in FIGS. 8 and 9, the round bars 15 of the supports 11 at each stage
A cylindrical roller 81 may be rotatably fitted to the roller 81, and the round bar 15 may be pushed by the operating body 56 of the retraction drive mechanism 51. Eleven round bars 15 may be connected by an interlocking rod 82 to synchronize the operations of the supports 11 at each stage. In this case, only one operating body 56 of the retracting drive mechanism 51 may be used. You can also do it. Note that 83 is a stopper ring attached to the round bar 15.

Further, in the embodiment described above, the topmost unloading section 5
Although only the support body 12 is constructed by a conveyor, the other supports can be constructed by a conveyor. In this way, the pallet P can be transported at any support position in the middle of the conveyance path 6. It can be brought in and taken out.

〔Effect of the invention〕

According to the present invention, in an ascending conveyance device in which an object to be conveyed in a carry-in section is sequentially transferred to an upper support body by lifting and lowering of a vertically movable body and then lifted and conveyed to an unloading section, a plurality of vertically movable bodies are pivoted on a lifting rod. The vertically moving bodies are moved up and down in complete synchronization with one drive mechanism, and each vertically moving body is connected via the interlocking lever, so each vertically moving body is The vertically moving body moves forward and backward in perfect synchronization with one drive mechanism,
Moreover, since the drive mechanism that performs this forward and backward movement is constructed with a link mechanism, there is no need for a drive source, and it is linked to the lifting and lowering movements, resulting in a simplified device and simple control. A working device can be provided.

In addition, in this ascending conveyance device, the support body retreats from the conveyed object when the conveyed object is raised by the vertically moving body, and the vertically movable body retreats from the conveyed object on the support when the vertically movable body descends. , the transported object will not be damaged.

[Brief explanation of the drawing]

1 to 7 show an embodiment of the ascending conveyance device of the present invention, in which FIG. 1 is a front view thereof, FIG. 2 is a plan view thereof, FIG. 3 is a side view thereof, and FIG. 5 is a partially enlarged front view of the same, FIG. 5 is a partially enlarged plan view of the same, FIG. 6 is a partially enlarged side view of the same, FIG. 7 is an explanatory view of its operation, and FIGS. 8 and 9 show modified examples thereof. 8 is a partially enlarged front view thereof, and FIG. 9 is a partially enlarged plan view thereof. DESCRIPTION OF SYMBOLS 1... Frame, 4... Carrying-in part, 5... Carrying-out part, 6... Conveyance path, 11, 12... Support body, 31
... Vertical moving body, 32 ... Elevating rod, 39 ... Interlocking rod, 41 ... Elevating drive mechanism, 51 ... Evacuation drive mechanism, 61 ... Evacuation drive mechanism, 64 ... Operation guide, P ... Object to be transported Palette as.

Claims (1)

[Scope of Claims] 1. A frame having a carry-in section at the bottom and a carry-out section at the top, with a conveyance path formed between the carry-in section and the carry-out section; A plurality of supports are arranged in the frame and are formed to be able to move forward and backward from the outside with respect to the conveyance path and the unloading section, and always extend into the conveying path and the unloading section, and are arranged at equal intervals along the conveying path of the frame. a plurality of vertically movable bodies that are installed in the conveyance path and are formed to be able to rise and fall freely along the conveyance path, and that are formed to be able to move forward and backward from the outside with respect to the conveyance path, and that are normally advanced into the conveyance path; an elevating drive mechanism for a vertically movable body that lifts and lowers the conveyed object intermittently from the loading section to the unloading section via each support and conveys the object; When the transported object scooped up from the support passes through the upper support, each support is evacuated to the outside of the transport path and the unloading section, and after the transported object has passed, each support is moved to the transport path and unloaded. a retraction drive mechanism for a support that causes an object to be transported on the vertically movable body to be received by the upper support when the vertically movable body is lowered; When the rear vertically movable body passes the lower support and the conveyed object supported by the carry-in section, each vertically movable body is retracted to the outside of the conveyance path, and after passing the conveyed object, each vertically movable body is moved to the conveyance path. and a retraction drive mechanism for the vertically movable bodies to be advanced. The vertical moving bodies are synchronously driven up and down by raising and lowering the lifting rod with the lifting drive mechanism, and each vertically moving body is synchronously moved up and down by the interlocking rod. It advances and retreats, and its tip always advances into the conveyance path due to its own weight, and the evacuation drive mechanism of the vertically movable body has a movable side opposite to the fixed side of the parallelogram link whose one side is fixed to the frame. as an operating guide, and this operating guide is normally advanced to a position relative to the tip of the vertically movable body due to its own weight,
When the vertically movable body ascends, this operating guide is pushed by the tip of the vertically movable body and retreats, and when the vertically movable body descends, the tip of the vertically movable body contacts this operating guide and retreats to the outside of the conveyance path. An ascending conveyance device featuring: