JPH0313420A - Pallet loader - Google Patents

Abstract

PURPOSE:To reduce a loading load at a high place position through the simplification of pushers, by constituting a carrying in conveyor with rollers, and constituting a relay support body with support rods whose direction agrees with the axis of a roller, and constituting pushers by providing push-moving pieces which are movable to a loading territory between rollers, and between support rods. CONSTITUTION:Works are sent into a carrying in territory 1, and a carriage plate 39 is positioned at the carrying in territory 1, and an ascent/descent frame 33 is ascended, and push-moving pieces 45 are projected onto rollers 11 through the cutout portions 14 of a carrying in conveyor frame 12 and the spaces 13 of rollers 11, and are positioned at the back of works. Next, the carriage plate 39 is moved to a relay territory 2, and works are transferred to support rods 22. Next, the descent of the ascent/descent frame 33 and the retreat of the carriage plate 39 are conducted, and the next works are similarly sent in. And, when works enough for a one step quantity are all present on support rods 22, the carriage plate 39 is moved to a loading territory 3, and a collective transfer to the loading territory 3 is made by means of push-moving pieces 45. As a result, pushers can be simplified.

Description

[Detailed description of the invention] [Purpose of the invention] (Industrial application field) The present invention relates to a pallet loading device.

(Prior art) As a conventional pallet loading device, the
There is one shown in Publication No. 97.

In this pallet loading device, items for one row of the loading pattern are transferred from the carry-in conveyor in the carry-in area onto the relay support (layer plate) in the relay area (alignment area) using the carry-in pusher. By repeating the operation, the items for one layer of the loading pattern are aligned on the support in the relay area, and then the items for one layer on the support are moved to the loading area (loading area) by the relay pusher (layer pusher). ) onto the conveyor (carriage), then lower the conveyor to the loading area directly above the pallet (or directly above the lower items that were previously transferred onto the pallet), and then move the conveyor By moving the conveyor from the loading area to the relay area with the stopper advanced to the relay area side of the upper one-tiered items, the conveyor is pulled out from below the one-tiered items. Accordingly, one tier of items is loaded onto the pallet (or on top of the lower tier of items that were previously transferred onto the pallet).

(Problems to be Solved by the Invention) The conventional pallet loading device described above has a carry-in pusher that moves the items for one row of the loading pattern to a high position, and a carry-in pusher that moves the items for one row of the loading pattern to a high position. Because it is necessary to provide a moving relay pusher (layer pusher), the load is large, and in particular, the relay pusher is able to move one stage of goods all at once from the relay area (alignment area) to the loading area (loading area).
As a result, the entire drive mechanism including the drive source becomes large and complicated, which causes an increase in the load applied at high locations.

The present invention has been made in view of these points, and in a pallet loading device, the relay pusher that moves the goods from the transfer area to the loading area can be simplified together with the carry-in pusher that moves the goods from the carry-in area to the transfer area. The purpose of this is to reduce the load on high-altitude locations.

[Structure of the invention]

(Means for Solving the Problems) The present invention includes a carry-in conveyor 4 that conveys articles W to a high position in a carry-in area 1, a carry-in pusher 45 that sends out the articles W on this carry-in conveyor 4 to a relay area 2, , this carry-in pusher 45
A relay support body 21 that receives the goods W sent out by the relay area 2 in the relay area 2, and a relay pusher 45 that sends the goods W on the relay support body 21 to the loading area 3 in front of the relay area 2. The goods W sent out by the relay pusher 45 are received in the loading area 3, conveyed downward, and horizontally moved between the loading area 3 and the rear thereof in order to be pulled out from below the conveyed items W. Possible loading carrier 39
and a pallet conveyor 5 for conveying the pallet (P) to a lower position in the loading area 3, and for loading the goods W conveyed by the conveyor 39 onto the pallet P conveyed to the loading area 3. In the pallet loading device, the carry-in conveyor 4 of the carry-in area 1 is equipped with a stopper 55 that allows the goods W on the conveyor 39 located in the loading area 3 to move forward and backward with respect to the relay area 2 side. A plurality of rollers 11 whose direction coincides with the moving direction of the article W by the carry-in pusher 45 and the relay pusher 45 are pivotally supported on the conveyor frame 12, and a plurality of notches corresponding to the gaps 13 between the plurality of rollers 11 are provided. 14 is formed from the lower part of the conveyor frame 12 to the side of the relay area 2, and the relay support 21 of the relay area 2 is axially aligned with the plurality of rollers 11 of the carry-in conveyor 4. Consisting of a plurality of support rods 22 that coincide with each other and face toward the loading area 3 from the side of the conveyor frame 12 of the conveyor frame 12 of the loading conveyor 4, the loading pusher and the relay pusher The gap 13 between the rollers 11 of this conveyor 4
Corresponding to the gaps 23 between the plurality of notches 14 of the conveyor frame 12 and the plurality of support rods 22 of the relay support 21, from the carrying-in area 1 side of the loading conveyor 39 to the upper side. It is made up of a plurality of protruding protrusions 45.

(Function) In the pallet loading device of the present invention, when the article W is conveyed onto the carry-in conveyor 4 in the carry-in area 1, the conveyor 39 is raised below the carry-in conveyor 4.
The plurality of pushing protrusions 45 constituting the upper carry-in pusher and relay pusher are connected to the plurality of notches 14 of the conveyor frame 12.
The rollers 11 are made to protrude upward from the gaps 13 between the plurality of rollers 11, and then the conveyor 39 is moved from the carry-in area 1 to the alignment area 2, so that the plurality of rollers 11 are Push the upper item W to transfer this item W from the carry-in conveyor 4 in the carry-in area 1 onto the support body 21 in the relay area 2, and by this transfer, the goods for one stage of the loading pattern are transferred. When the Ws are aligned on the support body 21, the plurality of pushing protrusions 4 constituting the carry-in pusher and the relay pusher on the conveyor body 39
5 is a gap 23 between a plurality of support rods 22 constituting the support body 21
The transport body 39 is in a state of being protruded above the support rod 22 from
By moving the goods W from the transit area 2 to the loading area 3, the goods W for one stage on the plurality of support rods 22 are moved by the plurality of pushing protrusions 45.
to transfer this one stage of items W onto the carrier 39 that moves from the transit area 2 to the loading area 3, and then move the carrier 39 directly above the pallet P in the loading area 3. (or directly above the lower-tiered item W that was transferred earlier onto the pallet P), and with the stopper 55 advanced to the relay area 2 side of the one-tiered item W on this carrier 39, By moving the carrier 39 from the loading area 3 to the transit area 2, the carrier 39 is pulled out from below the one-stage article W, thereby allowing the one
The items W corresponding to the tiers are loaded onto the pallet P (or onto the lower tier items W that were previously transferred onto the pallet P).

(Embodiment) An embodiment of the pallet loading device of the present invention will be described with reference to the drawings.

First, an overview will be briefly explained with reference to FIGS. 4 to 6.

1 is the loading area for the goods W to be loaded, 2 is the transit area for the goods W,
3 is a loading area for the goods W, these areas are set on a straight line in plan view, and the tip of the carry-in conveyor 4 is disposed from the side with respect to the high position of the carry-in area 1. ,
An intermediate portion of the pallet conveyor 5 is arranged from the opposite side to the lower position of the loading area 3.

Then, the carry-in conveyor 4 transports the goods W to a high position in the carry-in area 1, and the pallet conveyor 5 transports the goods W to a high position in the carry-in area 1.
is transported to a lower position in the loading area 3, and when multiple items W for one row of the loading pattern are arranged on the carry-in conveyor 4 of the loading area 1, the items W for this one row are collectively transported to the front. Move to relay area 2, repeat this operation, and when the items W in a predetermined row for one stage of the loading pattern are lined up in relay area 2, the items W for one stage are collectively transferred to the loading area 3 in front. The machine moves to , descends and loads onto pallet P. When the loading of a predetermined stage is completed, the pallet P loaded with the goods W is carried out from the loading area 3 to one side by the pallet conveyor 5, and another pallet P is loaded from the other side instead. It is designed to be transported to Area 3.

Next, details will be explained with reference to FIGS. 1 to 3.

The carry-in conveyor 4 arranged in the carry-in area 1 is a drive-type roller conveyor in which a large number of rollers 11 are pivotally supported on a conveyor frame 12, and the large number of rollers 11 are driven and rotated by a drive mechanism (not shown). The axial direction of the rollers 11 faces the relay area 2 and the loading area 3, and the conveyor frame 12 in the carry-in area 1 has a plurality of notches 14 corresponding to the gaps 13 between the plurality of rollers 11.
2 to the side of the conveyor frame 12 on the relay area 2 side.

A plate-shaped stopper 15 whose position can be adjusted is provided on the roller 11 at the tip of the carry-in conveyor 4, and a plate-shaped stopper 15 that retracts from below the roller is placed at a position before entering the carry-in area 1. A stopper 16 is provided.

Further, the relay area 2 is provided with a fork body 21 as a relay support for supporting the article W transferred from the carry-in conveyor 4 of the carry-in area 1. This fork body 2
1 corresponds to the plurality of rollers 11 of the above-mentioned carry-in conveyor 4, and aligns the axial direction with the rollers 11 so as to move the carry-in conveyor 4.
It consists of a plurality of support rods 22 attached to the side of the conveyor frame 12 on the relay area 2 side, and the plurality of support rods 22
extend horizontally from the carry-in conveyor 4 toward the front loading area 3, and are provided in parallel with each other with a predetermined gap 24 in between. is attached via a mounting piece 25.

The plurality of support rods 22 of this fork body 21 are in line with the corresponding rollers 11, and the gap 23 between the plurality of support rods 22 is equal to the gap 13 between one number of rollers 11 of the carry-in conveyor 4. and communicates in a straight line with the plurality of notches 14 of the conveyor frame 12.

Further, a pair of pillars 27 on both sides are vertically arranged on both sides near the boundary between the relay area 2 and the loading area 3, and a shaft 28 is rotatably mounted between the rear parts of the pair of pillars 27 on both sides. A plate-shaped stopper 29 for the relay area 2 is attached to this shaft 28, and by rotating the shaft 28 with an air cylinder 30 attached to one of the supports 27, this stopper 29 can be moved horizontally. It descends below 28 and advances to the tip of the fork body 21, or rises in front of the pongee 28 and retreats from the tip of the fork body 21.

Further, located below the shaft 28 of the stopper 29, an elevating frame 33 is supported between the pair of pillars 27 so as to be able to rise and fall in a horizontal state by a guide rail or a guide roller (not shown). This elevating frame 33 has a U-shape with side frame parts 34 along both sides of the carry-in area 1, transit area 2, and loading area 3, and a front frame part 35 along the front part of the loading area 3. A motor 36 shown in FIGS. 4 and 6 installed at the upper end of one of the pillars 27 allows the robot to move up and down while maintaining a horizontal state through interlocking shafts, sprockets, chains, etc. There is.

Then, between the side frames 34 on both sides of the lift frame 33, one stage of goods W to be moved from above the fork body 21 of the relay area 2 to the loading area 3 in the front is received and conveyed to the pallet P below. A carriage plate 39 serving as a conveying body is supported horizontally and movably in the front and rear directions along the side frame portion 34.

This carriage plate 39 is one side frame portion 3 of the elevator frame 33.
A motor (not shown) provided at the front end of the frame 4 allows horizontal movement in the front-rear direction.

The upper surface of this carriage plate 39 is located above the lower side of the conveyor frame 12 of the carry-in conveyor 4 and the lower side of the support rod 22 constituting the fork body 21 when the lifting frame 33 is raised to its upper limit. The height is set to be slightly lower than the height.

Further, on the upper surface of the rear end of the carriage plate 39 on the carry-in area 1 side, there are pushing pieces 45 as a plurality of pushing protrusions, which are arranged in the gaps 13 between the plurality of rollers 11 of the carry-in conveyor 4, and in the gaps 13 between the plural rollers 11 of the carry-in conveyor 4, A plurality of cutouts 14 in the conveyor frame 12 of No. 4
The plurality of pushing pieces 45 are attached at predetermined intervals corresponding to the gaps 23 between the plurality of support rods 22 constituting the fork body 21. One row of items W is transferred to the fork body 2 in the forward relay area 2.
1, and also constitutes a relay pusher that moves one stage of items W on the fork body 21 of this relay area 2 to the loading area 3 in front.

Note that the upper end portions of the plurality of pushing pieces 45 are connected to the lifting frame 3.
3 is set to be at a position higher than the upper side of the roller 11 and the upper side of the support rod 22 by a predetermined dimension when it is raised to the upper limit.

Further, for the loading area 3, a plate-shaped front lock body 48 is provided inside the front frame portion 35 of the lifting frame 33, and in front of the side frame portions 34 on both sides of the lifting frame 33. A plate-shaped side lock body 49 is provided on the inside of each section, and these front lock bodies 48 and side lock bodies 49 on both sides are provided at corresponding positions on the lifting frame 33. The air cylinder 50 allows the vehicle to move forward and backward with respect to the loading area 3.

Furthermore, a comb-shaped plate-shaped stopper 55 for the loading area 3 is provided between the intermediate portions of the side frames 34 on both sides of the lifting frame 3;
This stopper 55 is rotated downward by air cylinders (not shown) attached to the side frames 34 on both sides, and the loading area 3
The stopper 55 is designed to move forward to the rear side or to retreat by rotating rearward and upward, and the lower edge when the stopper 55 is in the lowered state is provided with the carry-in pusher on the carriage plate 39 and the lower edge. Notches 56 are formed for the plurality of pushing pieces 45 that constitute the relay pusher.

The lower edge of the stopper 55 in the lowered state is set to be slightly higher than the upper surface of the carriage plate 39, and in this state, the plurality of notches 56 of the stopper 55 are aligned with the carriage plate 39. A plurality of pushing pieces 45 on 39
It is designed to allow the passage of.

With this configuration, the articles W are loaded in the following manner.

First, the items W to be transported to the loading area 1 by the loading conveyor 4 are transported through the stopper 16 on the condition that a predetermined number of items W for one row of the loading pattern are not in the loading area 1. The article W enters zone 1 and is stopped by the stopper 15, and the article W stopped by the stopper 15 causes subsequent articles W to stop in order.

When a predetermined number of items W corresponding to one row of the loading pattern are arranged in the carry-in area 1, the following items W are stopped by the stopper 16, and in this state, as shown in FIG. 3(A), the carriage With the plate 39 located in the carry-in area 1, the lifting frame 3
3 is raised by the motor 36 shown in FIGS. 4 and 6, and as shown in FIG. The plurality of pushing pieces 45 protrude above the rollers 11 from the gaps 13 between the plurality of notches 14 of the conveyor frame 12 and the plurality of rollers Il, and the plurality of pushing pieces 45 are attached to the side opposite to the relay area 2 of one row of articles W. Located in

After this, as shown in FIG. 3(C), the carriage plate 39
are advanced from the carry-in area 1 to the relay area 2 by a motor (not shown), and along with this movement, the plurality of pushing pieces 45 on the carriage plate 39 push the articles W for one row on the plurality of rollers 11 of the carry-in conveyor 4. all at once, and move the items W for this one row.
are transferred from the carry-in conveyor 4 in the carry-in area 1 onto the plurality of support rods 22 forming the fork body 21 in the relay area 2.

Then, lower the elevating frame 33 a little, as shown in Fig. 3 (D).
As shown in FIG.
After removing the carriage plate 39 from the gap 23 between the plurality of support rods 22 of the fork body 21, move the carriage plate 39 from the relay area 2 to the carry-in area 1.
Then, with a predetermined number of items W for the next row arranged on the carry-in conveyor 4 in the carry-in area 1, the lift frame 33 is raised again, as shown in FIG. 3(E). , carriage plate 39
By protruding the upper plurality of pushing pieces 45 above the rollers 11 of the carry-in conveyor 4 and further advancing the carriage plate 39 from the carry-in area 1 to the relay area 2, the next row of items W is transferred to the carry-in area. 1 onto the fork body 21 in the relay area 2.

By repeating these operations, Figure 3 (F)
As shown in , when transferring the last row of items W in the loading pattern for one stage from the carry-in conveyor 4 in the carry-in area 1 to the fork body 21 in the relay area 2, the carriage plate 39 is
Move to loading area 3.

Then, in the relay area 2, the plurality of pushing pieces 45 constituting the relay pusher on the carriage plate 39 protrude above the support rod 22 from the gap 23 of the support rod 22 of the fork body 2I of the relay area 2. One stage of goods W can be pushed directly to the loading area 3 with the pushing piece 45, and along with this, one stage of goods W can be transferred as shown in Fig. 3 (G). The articles W for one stage are transferred from the fork body 21 in area 2 onto a carriage plate 39 that moves to the loading area 3, and the articles W for one stage are moved to the loading area 3 on the carriage plate 39.

Then, the elevating frame 33 is lowered, and as shown in FIG.
(Next time, it will be directly above the lower item W that was transferred onto the pallet P first).

Next, the front lock body 48 and the side lock bodies 49 on both sides
is advanced to the front and both sides of one stage of the article W on the carriage plate 39 by each air cylinder 50, and the stopper 55 is moved to the front and both sides of one stage of the article W on the carriage plate 39 by the air cylinder (not shown). It advances to the rear of the relay area 2 side of the items W, thereby positioning the items W for one stage from all sides and maintaining the aligned state.

Next, the carriage plate 39 retreats from the loading area 3 to the relay area 2, and as a result of this movement, the carriage plate 39 is pulled out from below one stage of the items W, as shown in FIG. 39 is loaded onto the pallet P (next time, on top of the lower-tiered items W that were previously transferred onto the pallet P).

By repeating this loading of the items W one tier at a time, the items W are loaded onto the pallet P in a predetermined loading pattern and into a predetermined number of tiers.

〔Effect of the invention〕

As described above, according to the present invention, there is a carry-in pusher that transfers the goods from the carry-in conveyor in the carry-in area onto the support body in the transfer area, and a carry-in pusher that transfers the goods from the carry-in conveyor in the carry-in area onto the support body in the transfer area, and a carry-in pusher that transfers the articles from the carry-in conveyor in the carry-in area onto the support body in the transfer area, and a load pusher that transfers the goods from the carry-in conveyor in the carry-in area onto the support body in the transfer area, and the load pusher that transfers the goods from the carry-in conveyor in the carry-in area to the support body in the relay area. Both relay pushers, which move the goods to the loading area and transfer them onto the conveyor, can be configured with only a plurality of pushing projections protruding from the conveyor, so that the pushing of the goods is carried out directly on the conveyor. This is done in conjunction with the movement of the vehicle, and there is no particular need for a dedicated drive source or drive mechanism for both, making it possible to significantly reduce the load applied at high locations.

[Brief explanation of drawings]

The drawings show one embodiment of the pallet loading device of the present invention, in which Fig. 1 is a plan view of the main parts, Fig. 2 is a side view thereof, Fig. 3 is an explanatory diagram of its operation, and Fig. 4 is a plan view of the whole. , FIG. 5 is a side view thereof, and FIG. 6 is a front view thereof. W... Goods, P... Pallet, 1... Loading area, 2... Transfer area, 3... Loading area, 4... Loading conveyor, 5... Pallet conveyor, 11... O-ra, 12...・Conveyor frame, 13.. Gap, 14.. Notch, 21.. Fork body as a support body, 22. Support rod, 23.. Gap,
39φ. Carriage plate as a conveyor, 45. Pushing piece as a pushing protrusion forming the carry-in pusher and the relay pusher, 55. Stopper. G'/) Figure 223

Claims (1)

[Claims] (1) A carry-in conveyor that transports items to a high position in the carry-in area, a carry-in pusher that sends the goods on this carry-in conveyor to a relay area, and a relay conveyor that receives the goods sent out by this carry-in pusher in the relay area. A support, a relay pusher that sends out the items on this relay support to a loading area in front of the relay area, and a relay pusher that receives the items sent out by the relay pusher in the loading area and transports them downward. a loading conveyor capable of raising and lowering and moving horizontally between a loading area and the rear thereof in order to pull out items from below; a pallet conveyor that conveys the pallet to a lower position in the loading area;
In order to load the items carried by the carrier onto the pallet carried to the loading area, a stopper is provided that can move forward and backward toward the relay area side of the items on the carrier located in the loading area. In the pallet loading device, the carry-in conveyor in the carry-in area has a plurality of rollers that are pivotally supported on the conveyor frame, the axial direction of which is aligned with the movement direction of the goods by the carry-in pusher and the relay pusher; It consists of a roller conveyor in which a plurality of notches corresponding to the gaps between the conveyor frames are formed from the lower part of the conveyor frame to the side of the relay area, and the relay support in the relay area is connected to the plurality of rollers of the carry-in conveyor. It consists of a plurality of support rods that are aligned in the axial direction and face the loading area from the side of the conveyor frame of the conveyor frame of the loading area, and the loading pusher and the relay pusher are connected to the loading area of the plurality of rollers of the loading conveyor. from the loading area side of the loading conveyor to the upper side, corresponding to the gaps between the conveyor frame of the conveyor frame of the loading conveyor and the gaps between the support rods of the relay support. A pallet loading device comprising a plurality of protruding pushing protrusions.