KR101609350B1 - Pallet load system - Google Patents

Pallet load system Download PDF

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Publication number
KR101609350B1
KR101609350B1 KR1020150091487A KR20150091487A KR101609350B1 KR 101609350 B1 KR101609350 B1 KR 101609350B1 KR 1020150091487 A KR1020150091487 A KR 1020150091487A KR 20150091487 A KR20150091487 A KR 20150091487A KR 101609350 B1 KR101609350 B1 KR 101609350B1
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KR
South Korea
Prior art keywords
pallet
lift
feeder
vertical portions
carrier
Prior art date
Application number
KR1020150091487A
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Korean (ko)
Inventor
이남순
Original Assignee
이남순
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Priority to KR1020150091487A priority Critical patent/KR101609350B1/en
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Publication of KR101609350B1 publication Critical patent/KR101609350B1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
    • B65G47/02—Devices for feeding articles or materials to conveyors
    • B65G47/04—Devices for feeding articles or materials to conveyors for feeding articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G61/00—Use of pick-up or transfer devices or of manipulators for stacking or de-stacking articles not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
    • B65G2201/02—Articles
    • B65G2201/0267—Pallets

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Intermediate Stations On Conveyors (AREA)

Abstract

The present invention relates to a pallet transport system, which transports a pallet to a conveyor-type feeder while minimizing a transportation distance without using a forklift at various kinds of logistics sites, and prevents damage to the feeder and the pallet during transportation of the pallet, And the like.
A pallet transport system according to the present invention comprises: a lift (10) for raising a pallet to a transport height; And a conveying means that is reciprocally movable between a feeder for feeding the pallet to an archive or a production line and the lift and for conveying the pallet raised to the conveying height by the lift to the feeder, A lift frame (11) arranged along the up and down longitudinal direction, which is a rising direction of the pallet, a carrier (12) vertically mounted on right and left vertical portions of the lift frame, elevating means (13) And a fork (14) mounted on the pallet so as to protrude toward the pallet through forward and backward means and connected to the pallet and then raised together with the carrier to raise the pallet to the carrying position of the carrying means.

Description

[0001] PALLET LOAD SYSTEM [

The present invention relates to a pallet transportation system, and more particularly, to a pallet transportation system in which a pallet containing the product is transported (storage, shipment, transportation, etc.) To a conveyor type feeder.

The confectionery / baking system is configured such that a series of processes such as dough, fermentation, baking, and packaging are continuous. The finished product, the semi-finished product, and the raw material through each process are configured to be transferred through a conveyor. For example, The pallet 1 is transported to the conveyor-type feeder 3 through the forklift 4, as shown in FIG. 1, since the weight of the pallet containing the finished product is very heavy, On a conveyor-type feeder (3).

Therefore, since the forklift is frequently reciprocated inside the confectionery / baking factory to transport the pallet 1 to the conveyor-type feeder 3, the worker frequently collides with the forklift 4, The bottom of the fork 4a of the forklift 4 hits the conveyor-type feeder 3 when the pallet 1 is placed on the conveyor-type feeder 3 and the conveyor- There is a problem that the leading end portion of the fork 4a is inserted into the conveyor-type feeder 3 while moving to the feeder 3, and the conveyor-type feeder 3 is broken. Particularly, since the pallet 1 is mounted on the conveyor-type feeder 3 by the driver of the forklift 4, the pallet 1 is mounted on the conveyor-type feeder 3 when the driver of the forklift 4 is immature. There is a problem that it takes a long time to do.

In addition, since the conventional pallet transportation system requires only excavation of the ground, it requires a lot of basic work such as excavation process, and in particular, it is very unrealistic to construct the pallet transportation system by excavating the slab in two or more floors, It has many problems.

These problems arise not only in bakery / confectionery factories but also in various logistics sites using pallets.

Patent Document 10-1019401 discloses a pallet transferring unit for transferring a pallet on which a plurality of fruit baskets are placed, a transfer input unit for sequentially discharging the fruit baskets transferred from the pallet transferring unit one by one, and a fruit basket A pallet loading part for loading the removed pallets, a first transfer part for sequentially transferring the fruit baskets discharged from the transfer charging part one by one, a ring rotating part for rotating the rings of the fruit basket conveyed along the first transfer part, A second transfer unit for transferring the empty fruit basket back and returning to the original state in the reverse rotation unit, a third transfer unit for transferring the fruit basket returned to the original state in the second transfer unit, A fruit basket for loading the fruit basket transferred from the third transfer unit, A transport system-part mounting, is intended to carry the pallet to the pallet transfer unit which appears in the manner according to the fork lift, that is to display the above-described problems in the course of a forklift, the pallet loaded on the pallet transfer unit.

Patent No. 10-1019401

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems and it is an object of the present invention to provide a pallet transportation system for safely transporting a pallet without using a forklift in the course of transporting pallets containing articles in various logistics processes to a conveyer- have.

A pallet transport system according to the present invention comprises: a lift for raising a pallet to a transport height; And a conveying means that is reciprocally movable between a feeder for feeding the pallet to an archive or a production line and the lift and for conveying the pallet raised to the conveying height by the lift to the feeder, A frame arranged along a vertical direction, which is an upward direction of the pallet, a carrier vertically movably mounted on right and left vertical portions of the frame, a lifting means for lifting and lowering the carrier, And a fork which is inserted into the pallet and connected to the carrier, and is raised together with the carrier to raise the pallet to the carrying position of the carrying means.

According to the pallet transportation system of the present invention, pallets containing articles are transported by a forklift to a conveyor-type feeder (not shown) when various kinds of logistics processes (for example, storage of finished products produced in the confectionery / baking process, transportation of materials and semi-finished products, , The pallet loaded on the ground through the lift is raised to the same conveying height as the conveyor-type feeder, and the pallet is supplied to the conveyor-type feeder through the conveyer carriage to mount the pallet on the conveyor-type feeder. Therefore, it is possible to prevent breakage of the conveyor type feeder and to prevent a safety accident caused by a collision between a worker and a forklift.

Further, since the lift is built on the ground without excavation of the ground, the construction is very easy and the effect is also applied to the slab of two or more floors.

In addition, there is also an effect of preventing a safety accident of a worker by not using a forklift.

In addition, since both the lifting and lowering of the lift and the movement of the carriage are performed along a predetermined route, and the automation is performed without an operator, the mounting operation of the pallet is performed quickly, thereby improving the productivity.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a view showing a conveying process of a confectionery bakery product according to the prior art. FIG.
2 is a perspective view of a pallet carrying system according to the present invention;
3 to 8 are views showing a pallet transportation process by the pallet transportation system according to the present invention.

As shown in FIG. 1, the pallet transportation system according to the present invention can be applied to various products (2) [all of the products handled in finished warehouses, intermediate products, materials, bakeries, The pallet 1 is transported to another place (including a cold storage freezer, a next production line, a transportation vehicle, etc.), and a lift 10 for lifting a pallet 1 seated on the ground, And a conveyance truck 20 for conveying the raised pallet 1 to the lift 10 to a feeder 2 (a roller conveyor or the like by supplying the pallet 1 to a storage or a next production line).

The lift 10 lifts the pallet 1 supplied through the handkerchief 5 or the like to a height at which the pallet 1 is mounted on the carrier truck 20 and is mounted on the lift frame 11 and the lift frame 11 A pair of left and right forks 14 for lifting and lowering the pallet 1 through the carrier 12 and forcing the pallet 1 therebetween.

The lift frame 11 is constituted by left and right vertical portions 11a which are placed or anchored at the bottom of the floor and a ceiling portion 11b connecting the upper portions of the vertical portions 11a. And it is easy to apply to a slab having two or more layers.

The left and right vertical portions 11a are each formed with a space in which the pallet 1 is seated therebetween, and each of them is composed of, for example, a pair of vertical bars and one or more horizontal bars connected between the vertical bars.

The ceiling portion 11b is composed of, for example, a rectangular frame connecting the vertical portions of the vertical portions 11a and at least one reinforcing bar formed in the rectangular frame.

The lift frame 11 can be configured in various ways to provide space for installation of the carrier 12 and the elevating means 13. [

The carrier 12 is mounted on the left and right vertical portions 11a of the lift frame 11 so as to be vertically movable, and a pair of forks 14 are respectively installed on the facing surfaces.

The carrier 12 has a different structure depending on the configuration of the elevating means 13 and is, for example, in the form of a block disposed between a pair of vertical bars of the left and right vertical portions 11a.

The elevating means 13 is supported by the motor 13a and the right and left vertical portions 11a of the lift frame 11 so as to be rotatable in the longitudinal direction and rotatable in place, And a screw nut 13c screwed to the screw bolt 13b and fixed to the carrier 12.

The motor 13a is a bidirectional motor so that both of the lifting and lowering of the carrier 12 is possible.

One or more screw bolts 13b are provided on each of the right and left vertical portions 11a of the lift frame 11 and receive bi-directional rotational force through the motor 13a to rotate in the upward direction or the downward direction.

The screw nut 13c is rotatably installed on the carrier 12, and the screw bolt 13b is screwed into the screw nut 13c.

It is preferable that two or more screw bolts 13b are provided on each of the right and left vertical portions 11a for stable elevating and lowering operation of the carrier 12 and two or more screw bolts It is possible to drive all the screw bolts 13b through the single motor 13a without discriminating all the right and left vertical portions 11a even if the vertical portions 11b of the lift frame 11 are applied, And a screw bolt 13b is connected to the motor so as to transmit power through a gear or a belt.

In addition, one or more guide rods 13d may be applied separately from the screw bolts 13b for stable elevation operation of the carrier 12 without twisting.

The guide rods 13c are vertically arranged vertically on the left and right vertical portions 11a of the lift frame 11 and are fixed to the lift frame 11 at the upper and lower portions while penetrating the carrier 12, It prevents shaking.

The fork 14 raises the pallet 1 that is seated on the ground in the lift frame 11 to the carrying height by the carrying carriage 20 and a pair of left and right pairs mounted on the right and left pair of carriers 12 And ascends through the carrier 12 in the state where the pallet 1 is in the forked state, and conversely falls to the forking position of the pallet 1 through the carrier 12. [

To this end, the fork 14 is in a position that does not interfere with the setting of the pallet 1 in the raised position (resting on the ground between the left and right vertical portions 11a) and protruding toward the pallet 1 through the forward / And the pallet 1 is inserted into a hole or groove formed in the pallet 1 so that the pallet 1 is forked.

For example, the fork 14 has a cylindrical shape and is mounted in the carrier 12 so as to protrude and retract. Two or more of the forks 14 are provided at left and right sides of the carrier 12 at regular intervals to stably support the pallet 1 do.

The fork 14 is formed of a tapered end surface (conical shape or the like) inclined with respect to the end portion. When the pallet 1 is to be forked (the fork is inserted into the pallet) The pallet 1 is moved through the tapered section so that a strong fork is formed.

The forward / backward means is, for example, a forward / backward cylinder 15 (hydraulic cylinder or the like). The forward and backward cylinders 15 are mounted on the carrier 12 and project the fork 14 toward the pallet 1 and on the contrary to the opposite side of the pallet 1.

Therefore, the forward / backward means is not limited to the forward / backward cylinder 15, and all the actuators capable of moving forward and backward of the fork 14, such as a solenoid, a rack / pinion, etc., can be used. Further, the guide rod may be configured so that the fork 14 is moved back and forth without twisting.

On the other hand, the fork 14 may have a cylindrical shape protruding from the carrier 12, but may be fixed to the forward / backward block 12a mounted on the carrier 12 so as to be movable forward and backward, It is also possible to advance the pallet 1 for forking.

When the pallet 1 is placed on the ground in the lift frame 11 by means of a forklift or the like, the fork 14 forks the pallet 1, The distance between the right and left vertical portions 11a is greater than the lateral width of the pallet 1 in order to prevent collision between the pallet 1 and the left and right vertical portions 11a in the process of being inserted between the right and left vertical portions 11a, The pallet 1 can be moved to either side of the left and right sides of the pallet 1. In this case, the fork 14 on one side of the left and right sides may not be inserted into the pallet 1, .

The pallet alignment tool 16 aligns the pallet 1 so that the pallet 1 is disposed at the center between the left and right vertical portions 11a of the lift frame 11 and is arranged at the bottom of the left and right vertical portions 11a toward the ground It may be a plate that is inclined downward toward the center. Therefore, the pallet 1 is disposed at the center of the left and right vertical portions 11a while descending toward the ground along the inclination of the pallet aligning tool 16, so that the left and right forks 14 are inserted into the pallet 1 with the same length Forked.

The pallet aligning tool 16 aligns the pallet 1 in the right position between the left and right vertical portions 11a and also when the pallet 1 enters between the left and right vertical portions 11a, And includes an entry guide portion 16a so as to enter the center between the left and right vertical portions 11a.

The entrance guide portion 16a protrudes from the left and right vertical portions 11a of the lift frame 11 and is formed at an angle widening toward the outside while going to the end portion.

The pallet aligning tool 16 is installed inside the fork 14 in a state where the fork 14 is inserted and has an opening portion corresponding to the fork 14 so that the fork 14 protrudes toward the pallet 1. [ Where holes are formed or where the forks 14 do not interfere.

In addition, a stopper for inserting the pallet 1 into the correct position may also be applied.

The stopper may be a stopper bracket protruding in a direction facing each other at the left and right vertical portions 11a, for example, to prevent the pallet 1 from moving forward at the bottom of the vertical portions 11a. Of course, this is a position where the stopper carriage does not interfere with traveling into the right and left vertical portions 11a.

The conveying carriage 20 conveys the pallet 1 raised to the supply position of the feeder 3 by the lift 10 to the feeder 3 and is configured to reciprocate between the lift 10 and the feeder 3 do.

The carriage 20 is used together with the rail 21 to allow rapid movement through the shaping of the movement path.

A rail 21 is provided at the bottom between the lift frame 10 and the feeder 3.

The rail 21 can be installed only to the point where it does not interfere with the pallet 1 and only the wheels 22 of the transportation bogie 20 are not separated. Of course, it is also possible that the rail 21 is installed to the end in the lift 10 so that the pallet 1 is raised on the rail 21.

The rail 21 can have various shapes such as a straight line, a curved line, a straight line and a curved line combination.

The carriage 20 is provided with a wheel 22 which rolls along the rail 21 at the bottom.

The carrier truck 20 is reciprocally moved between the lift frame 11 and the feeder 3 along the rail 21 by the manual operation of the operator and is reciprocated by a self drive motor for forcibly rotating the wheel 22 in both directions. It is also possible to do.

On the other hand, the pallet 1 mounted on the conveying carriage 20 is conveyed to the roller conveyer type feeder 3, and both the conveyance by the operator and the conveyance by the electric type are possible.

In the latter case, a conveyor belt 23 for conveying the pallet 1 to the feeder 3 is provided at the upper part of the conveyor truck 20. The conveyor belt 23 may be a chain belt that is installed in an endless track on the top of the conveyance carriage 20 and is rotated by a driving motor.

The conveyor belt 23 can also be replaced by a push rod that pushes the pallet 1 mounted on the conveying carriage 20 to the feeder 3 for supply.

The push rod is linearly moved by the hydraulic cylinder and pushes the pallet (1) to carry it over the feeder (3). The feeder 3 may be a roller conveyor that rotates through power and conveys and supplies the pallet 1 to another place. Therefore, it is also possible that the pushrod conveys only a part of the pallet 1 to the feeder 3.

If the elevation height of the pallet 10 by the lift 10 and the elevation height of the pallet 1 by the feeder 3 are equal to each other, the conveyance carriage 20 is manufactured and operated at the same height. However, if the feed height of the pallet 1 varies by the feeder 3, the height of the fork 14 and the height of the carriage 20 should be adjusted to match the feed height of the feeder 3, The height of the transporting carriage 14 can be easily changed in accordance with the structure of the elevating means and the height of the transporting carriage 20 can be adjusted by adjusting the height of the transporting belt 24 applied to the transporting carriage 20. [

The present invention can automate all processes from the step of forging the pallet 1 to the step of feeding the pallet 1 to the feeder 3 after the pallet 1 is fed to the lift 10, The sensors can be installed for each process and pallet forking - carriage carriage entry - pallet loading - carriage return carriage - pallet feeding can be automated based on sensor detection values. Of course, each process can be performed by manual operation or switch operation of the operator.

The operation of the pallet transport system according to the present invention is as follows.

1. Pallet supply (see FIG. 3).

The pallet 1 containing the product 2 can be placed on the ground in the lift frame 11 of the lift 10 (the separate support plate can be mounted on the ground to receive the pallet 1) through the handkerchief 5 Supply.

The pallet 1 carried by the handkerchief 5 will enter a state close to the ground and the pallet 1 is moved to the lift frame 11 through the entry guide 16a of the pallet aligning tool 16. [ The pallet 1 is guided to the center between the left and right vertical portions 11a along the inclination of the pallet aligning tool 16 and is seated on the ground do.

Conventionally, since a pallet is directly transported to a conveyor, a forklift must be used. However, the present invention does not use a forklift because the work is completed by placing the pallet on the lift using the handkerchief 5.

2. Palette fork (see FIG. 4).

When the pallet 1 is set at the raised position of the lift frame 11, the fork 14 is advanced by the forward and backward cylinder 15 toward the pallet 1 and inserted into the pallet 1,

3. Pallet rise (see FIG. 5).

When the forking of the pallet 1 by the fork 14 is completed, the screw bolt 13b is rotated in one direction (the upward direction of the carrier 12) by the motor 13a of the elevating means 13, 13b, the carrier 12 rises as the screw nut 13c rotates. The pallet 1 is raised by the rise of the carrier 12. [

4. Carriage entry (see Fig. 6).

The pallet 1 moves up to the bottom of the pallet 1 along the rail 21 after the pallet 1 has risen. The carriage 20 moves along the rail 21 to the bottom of the pallet 1 through the wheel 22 rotating by the driving force of the driving motor.

5. With pallet.

When the fork 14 is retracted from the pallet 1 through the forward and backward cylinders 15, the pallet 1 naturally falls and is mounted on the conveyor belt 24 of the carriage 20.

6. Pallet supply (see FIG. 7).

The carriage 20 is moved toward the feeder 3 (same as the movement toward the lift 10, and the stage drive motor is rotated in the opposite direction) and stops in front of the feeder 3. The carrier 12 descends to the ground and waits for the next pallet 1 to rise while the carrier truck 20 moves from the lift 10 to the feeder 3.

Then, the conveyor belt 23 is rotationally driven to convey the pallet 1 to the feeder 3.

A plurality of pallets 1 are continuously supplied while repeating the above process.

1: pallet, 2: product
10: lift, 11: frame
12: carrier, 13: elevating means
14: fork, 15: forward / backward cylinder
16: pallet alignment port, 20: carriage carriage
21: rail, 22: wheel
23: Carrying belt,

Claims (4)

A lift (10) for raising the pallet to a transport height;
A feeder (3) for feeding the pallet to a storage room, a vehicle or a manufacturing line, and a conveying means provided for reciprocating between the lift and the pallet raised to a conveying height by the lift In addition,
The lift
Vertical left and right vertical portions 11a arranged in a vertical direction, which is a rising direction of the pallet, with a space larger than the left and right width of the pallet 1 so that the pallet is supported on the floor at the bottom, A lift frame 11 constituted by a ceiling portion 11b connecting the upper portion of the lift frame 11a and a pair of right and left carriers 12 vertically mounted on the right and left vertical portions of the lift frame, (13), which is mounted to the carrier so as to protrude toward the pallet through forward and rearward means, is inserted into both right and left sides of the pallet, and then rises together with the carrier to raise the pallet to the carrying position of the carrying means A pair of left and right forks (14), a pair of left and right forks (14) formed on opposite sides of the left and right vertical portions of the lift frame Including the opening (16),
The pallet aligning hole is formed at a bottom portion of the right and left vertical portions 11a so as to be inclined downward toward the center while being directed toward the ground. The pallet is disposed at the center of the left and right vertical portions 11a, So that the forks (14) on both sides are inserted into the pallet with the same length. delete The pallet transporting system of claim 1, wherein the pallet aligning opening includes an entry guide inclined at an angle widening toward the outside on an entry side of the pallet, so that the pallet enters the center of the lift frame. The transporting device according to any one of claims 1 to 3, wherein the transporting means comprises: a rail formed at the bottom between the lift frame and the feeder; a transporting carriage (20) linearly reciprocating along the rail through drive means; And a conveyor belt (23) mounted to and supporting a pallet supported by a fork of the lift, the conveyor belt conveying the pallet to the feeder.
KR1020150091487A 2015-06-26 2015-06-26 Pallet load system KR101609350B1 (en)

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Application Number Priority Date Filing Date Title
KR1020150091487A KR101609350B1 (en) 2015-06-26 2015-06-26 Pallet load system

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Application Number Priority Date Filing Date Title
KR1020150091487A KR101609350B1 (en) 2015-06-26 2015-06-26 Pallet load system

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190113237A (en) * 2018-03-28 2019-10-08 전자부품연구원 Pallet feeders and system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190113237A (en) * 2018-03-28 2019-10-08 전자부품연구원 Pallet feeders and system
KR102106433B1 (en) * 2018-03-28 2020-05-29 전자부품연구원 Pallet feeders and system

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