KR100426052B1 - Cart for stacking freight - Google Patents

Abstract

The present invention relates to a cargo loading truck, and in particular, a transport device that moves along the rail and a lift device that moves left and right and loads or unloads cargo is configured to be mounted on the transport apparatus to transport cargo using a pallet. Cargo loading truck configured to detect the height and width of the loading box regardless of the type of truck so that one load can be loaded or unloaded on a truck at the same time or on a pallet basis. It is about. Such a truck can be actively operated regardless of the size and height of the cargo box because the multiple trucks are properly connected or individually used to transport the cargo in accordance with the length of the truck.

Description

Cargo for Cargo Loading {CART FOR STACKING FREIGHT}

The present invention relates to a cargo loading truck, and in particular, a transport device that moves along the rail and a lift device that moves left and right and loads or unloads cargo is configured to be mounted on the transport apparatus to transport cargo using a pallet. Cargo loading truck configured to detect the height and width of the loading box regardless of the type of truck so that one load can be loaded or unloaded on a truck at the same time or on a pallet basis. It is about.

In general, the cargo loading system discharges the finished product through the production process through a conveying device such as a conveyor after the production process is carried out by a person to manually transport the goods to load in the vehicle for cargo transportation.

That is, the finished article is discharged out of the production line by the conveyor, and the discharged article is packaged in a packing unit and transferred back to the loading place by the conveyor. The cargo thus transported is transported by a cargo vehicle such as a truck to deliver another place of loading or goods to another place, and the cargo carried by the conveyor for such transportation is carried by a worker directly to the freight vehicle to be loaded on the vehicle. Doing.

In recent years, the development of automation equipment has been developed according to the development of technology, and the cargo discharged by the conveying device is loaded at a suitable position by a robot, and then the workers load the cargo into the freight vehicle by manual work, or the freight vehicle If it is far away, the forklift is used to transport the cargo and load it in the freight vehicle.

As such, in a system for transferring cargo to transport cargo, many workers have to carry the cargo directly through several steps, which exposes them to the risk of safety accidents occurring during the operation, and the cost according to the number of workers. There is a problem that arises.

Some of these problems are solved through equipment such as robots and forklifts, but equipment such as robots are not only expensive equipment but also precision machines. There is a problem.

When using equipment such as a forklift, pallets must be used for cargo transportation, and pallets of different sizes according to the size of the vehicle must be used. Due to the problem to be done, the work efficiency is greatly reduced.

In addition, even if the forklift is used as described above, in order to load the cargo to the freight vehicle, the problem still remains that the operator must carry the cargo directly loaded.

The present invention is to overcome the above-mentioned conventional problems, an object of the present invention relates to a freight loading carriage, and in particular, the transfer device and the left and right moving and moving the cargo along the rail to load or unload cargo The lifting device is designed to be mounted on the conveying device so that the trucks carrying pallets can be loaded or unloaded one cargo at the same time or pallets, regardless of the type of truck. It is to provide a cargo loading truck which is configured to detect and load the cargo in an appropriate loading standard.

Still another object of the present invention is to detect the width of the pallet on which the cargo is loaded on the truck with a sensor to adjust the distance between the transport vehicle, and also to adjust the loading state according to the stop position of the truck have.

Further, another object of the present invention is to change the position of the cylinder for causing the lifter to flow up and down to reduce the moment of the lift device mounted on the vehicle, and to change the connection means of the lifter damage of the vehicle loaded with cargo Is in preventing.

One feature according to the present invention for achieving the object of the present invention is a conveyor for transporting cargo to a position close to the loading compartment of the freight vehicle and on the rails and the rail embedded in the ground on both sides of the conveyor In a carriage used for a cargo loading system constituted by a mounted carriage, the carriage is erected vertically at both side ends of the plate-shaped base 111 and has a guide groove 113 of constant length along the inner surface longitudinal direction. The side plate 112, the wheel 117 having a guide 116 mounted at the four corners of the lower surface of the base 111, and a spiral hole 119 formed at the center of the lower surface of the base. Slider 118 having, and the fixed groove 121 of the "슬라이딩" shape that is mounted on the guide groove 113 and slides up and down and connected to the upper portion and one upper end of the fixing plate 121 A lifter 120 comprising a pair of tongs 123 extending forwardly from the cylinder, and a cylinder mounted on the front upper end surface of the base and connected by the lifter and the hinge; And a base frame having wheels mounted at four corners of the lower surface, a screw bar mounted in a longitudinal direction to the base frame, and mounted at one side lower portion of the base frame to one end of the screw bar by gears or belts. A motor to be connected, a drive motor mounted to both of the longitudinal wheels, a cylinder mounted perpendicularly to the longitudinal direction of the central lower surface of the base frame, and a connector mounted to the side of the base frame opposite the rod of the cylinder; It is comprised by the conveying apparatus.

The lifter is erected in the longitudinal direction on the base, the fixing plate is connected to the top, a pair of forceps extending forward from one side upper end of the fixing plate, a cradle formed in the rear portion of the fixing plate, and formed in the longitudinal direction on the side portion It is configured to include a plurality of guide protrusions, which is rotatably mounted on the upper portion of the fixing plate by a hinge, the dog is formed with a locking jaw at the front end, and a cylinder mounted on the cradle and connected to the other end of the dog. desirable.

And, the lifter is connected to the position where the rod end of the cylinder is close to the rear end of the tongs of the lifter, the width (or diameter) of the guide protrusion is formed slightly less than the width of the guide groove, and also the back of the side plate The load sensor is mounted on, the sensor support is formed on the back of the guide groove so that the lifter is rotated at an angle around the rod end of the cylinder, it may be configured to detect the load of the cargo loaded on the lifter.

In addition, the lift device may be configured to further include a sensor on the front of the lift device to control the driving of the motor connected to the screw bar for adjusting the distance between the freight vehicle and the lift device.

In addition, the drive motor may include a gearbox so that the movement is easy and stable when the transfer device moves on the bent rail.

Preferably, the transfer device has a position sensor mounted at a position adjacent to the connector.

1 is a view showing a schematic configuration of a loading system equipped with a cargo for transport according to the present invention,

Figure 2 is a front view for showing the structure of the cargo-carrying vehicle according to the invention,

3A is a front sectional view partially cut away to show the structure of a lift device that is one component of the carriage shown in FIG. 2, FIG.

3b is a side view of the lift device,

3c is a plan view of the lift apparatus,

Figure 4a is a front view for showing the structure of the transport device which is one component of the carriage shown in Figure 2,

4b is a bottom view of the conveying apparatus,

FIG. 5A is a perspective view of a clamp mounted to the bottom surface of the carriage shown in FIGS. 4A and 4B;

5B is a cross-sectional view showing a state in which the clamp is engaged with the rail,

6a to 6f is a view showing a state in which the cargo-carrying truck according to the present invention is operated.

* Description of the main parts of the drawings *

100 ... truck 110 ... lift

111 ... Base 112 ... Side Plate

113 ... guide groove 114 ... sensor support

115 ... Cradle 116 ... Guide

117 ... Wheels 118 ... Sliders

119 ... hole 120 ... lifter

121 ... fixing plate 122 ... guide protrusion

123 ... tongs 124 ... hinge

125a, 125b ... load sensor, sensor 130 ... dog

131 ... hinge 132 ... jamming jaw

141,142,143 ... cylinder 150 ... feeder

151 ... Base frame 152 ... Rail

153 ... screw bar 154 ... wheels

155 ... gearbox 156 ... drive motor

157 ... End Connection 158 ... Position Sensor

161,162 ... Cylinder 170 ... Motor

180 ... clamp 181 ... base

182 ... holes 183 ...

200 ... conveyor 300 ... rail

400 ... freight vehicles 500 ... freight

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

Referring to FIG. 1, there is schematically shown a cargo loading system equipped with a freight loading carriage according to the present invention.

The system includes a conveyor (200) for transporting the cargo (500) to a position close to the loading compartment of the cargo vehicle (400) and a rail (300) and the rail (300) embedded in the ground on both sides of the conveyor (200). It is composed of a transport vehicle 100 mounted on.

Referring to the operation of such a cargo loading system schematically, the freight vehicle 400 is stopped between the rails 300 installed on both sides for loading or unloading the cargo 500.

Thereafter, when the cargo 500 is transferred by the conveyor 200, the transport vehicle 100 mounted on the rail 300 is moved along the rail 300 to lift the cargo 500 to move the cargo vehicle ( The cargo 500 is loaded in the storage compartment of 400).

As described above, the kenveyer 200 for carrying the cargo is the same as the conventional configuration, and thus, the following description is omitted, and the configuration of the transport vehicle 100 according to the present invention is as follows.

2, there is shown a transport vehicle 100 according to the present invention, the transport vehicle 100 is moved to the left and right along the rail 300, the transport device 150 and the upper portion of the transport device 150 It is equipped with a lift device 110 that moves forward and backward, and loads or unloads the cargo 500.

As shown in FIGS. 3A to 3C, the lift apparatus 110 is equipped with side plates 112 which are vertically mounted at both side ends of the plate-shaped base 111. Guide grooves 113 having a predetermined length along the longitudinal direction is formed on the inner surface.

In addition, a sensor support 114 is formed at the rear of the guide groove 113 in parallel with the guide groove 113 to support the load sensor 125a mounted to the lifter 120 described below.

In addition, a wheel 117 is mounted on the lower surface of the base 111 in a form surrounded by the four corner guides 116. The wheel 117 is a rail 152 of the transfer apparatus 150 described below. The guide 116 is positioned to slide on the upper surface of the), and the guide 116 is configured to surround the rail 152 so that the wheel 117 does not escape upward, downward, left, and right on the rail.

In addition, a slider 118 is mounted at a central portion of the lower surface of the base 111, and the slider 118 has a hole having a spiral formed therein in a direction corresponding to the longitudinal direction of the rail 152 of the transfer device 150 ( 119). The slider 118 is connected to the screw bar 153 mounted on the upper portion along the longitudinal direction of the conveying device 150 to be described below to slide the transport vehicle 100 along the rail 152 of the conveying device 150 Make it possible.

The guide groove 113 formed in the side plate 112 of the lift device 110 is mounted with a lifter 120 which slides up and down by the operation of the cylinder 141, and the lifter 120 is formed vertically. It has a fixing plate 121 is connected to the top and a pair of tongs 123 extending forward from the upper end of one side of the fixing plate 121, the cradle 115 is formed on the rear portion of the fixing plate 121.

In addition, a guide protrusion 122 corresponding to the guide groove 113 is formed in a side portion of the fixing plate 121, and the width (or diameter) of the guide protrusion 122 is the guide groove 113. Slightly less than the width of the c) is configured such that the lifter 120 can be rotated at a slight angle (about 2 to 5 degrees) about the rod end of the cylinder 141 as described below. In addition, the rod end of the cylinder 141 is connected to a position close to the rear end of the forceps 123 of the lifter 120.

Thus allowing the lifter 120 connected to the rod of the cylinder 141 to rotate (or, precisely, the tindle movement) at an angle is described below when the lifter 120 descends to unload the cargo 500. Likewise, the load is stopped by the operation of the sensor 125a, but in actual operation, an error occurs in the operation. This is to prevent the loading compartment of the freight vehicle 500 is pressed and damaged by the lowering of the lifter 120 by such an error.

In addition, connecting the rod end of the cylinder 141 to the rear end of the tongs 123 of the lifter 120 to minimize the moment generated by the load of the cargo 500 placed on the tongs 123. For sake.

In addition, the dog 130 is located on the upper surface of the tongs 123 to push the cargo 500 to be loaded to an appropriate position, the dog 130 is a connecting portion for connecting the upper portion of the fixing plate 121 Is rotatably mounted by the hinge 131 on one side of, the engaging end 132 is formed at the front end of the dog 130. In addition, rods of the respective cylinders 142 and 143 are connected to the other end of the dog 130, and the cylinders 142 and 143 are mounted on the holder 115 connected to the rear side of the fixing plate 121 in the horizontal direction.

In addition, a cylinder 141 is mounted on the front upper end surface of the base 111, and the rod of the cylinder 141 is hinged to the center lower surface of the connecting portion to which the upper portion of the fixing plate 121 is connected. Connected.

The mounting position of the above-described load sensor 125a may be changed, and is preferably mounted at a position capable of detecting the weight of the cargo 500 placed on the forceps 123 of the lifter 120.

In addition, a sensor 125b is mounted on the front portion of the lift device 110 to adjust the distance between the freight vehicle 400 on which the cargo 500 is loaded and the lift device 110. That is, when the lift device 110 is moved along the rail 152 of the transfer device 150 described below, the screw bar described below so as to maintain a proper distance between the storage compartment and the lift device 110 The driving of the motor 170 connected to the 153 is controlled.

If the lift device 110 does not control the degree of movement on the rail 152 of the feeder 150, when the freight vehicle 400 stops between the rails 300, it is usually not constantly stopped, but always slightly Since the vehicle is stopped in a stiff state, the side surfaces of the transport vehicle 100 and the freight vehicle 400 are not kept in parallel with each other.

Therefore, the reason for adjusting the distance between the freight vehicle 400 and the lift device 110 by using the sensor 125b is that when the cargo 500 is loaded, the loaded cargo 500 is not loaded at an appropriate position. This is because the lift device 110 mounted on the vehicle 100 needs to separately adjust the moving distance on the rail 152 of the transfer device 150.

Although the sensor 125b is shown mounted on the front part of the base 111 in FIG. 3A, the sensor 125b may be changed to be mounted at an appropriate position capable of detecting the width of the pallet.

The transfer device 150 is composed of a base frame 151 having a rail 152 in the longitudinal direction on the upper surface. The screw bar 153 is rotatably mounted along the longitudinal direction of the base frame 151 so that the carriage 100 mounted on the upper portion of the rail 152 may move along the longitudinal direction.

The screw bar 153 is connected to the slider 118 mounted to the lower portion of the above-described lift device 110, the one end of the screw bar 153 is mounted to one lower side of the base frame 151 The motor 170 is connected by a gear or a belt to allow the screw bar 153 to rotate forward or reverse by the driving force of the motor 170 to move the carriage 100 along the longitudinal direction.

In addition, wheels 154 are mounted at four corners of the base frame 151 so that the transfer device 150 may be mounted on the rails 300, and both wheels in the longitudinal direction of the wheels 154 may be mounted. A drive motor 156 having a gearbox 155 is connected to 154.

The gear box 155 and the drive motor 156 are mounted to the lower portion of the base frame 151, the gear box 155 is a gear box for shifting the speed of the transfer device 150 ( When the 150 moves on the bent rail 300, the movement is easy to operate to be stable. The gear box 155 and the drive motor 156 may be configured using a transmission known in the art.

In addition, a cylinder 161 is mounted on the center lower surface of the base frame 151 perpendicular to the longitudinal direction, and a connector 157 is mounted on the side of the base frame 151 opposite to the rod of the cylinder 161. The position sensor 158 is mounted at a position adjacent to the connector 157.

The rod of the cylinder 161 mounted on the lower portion of the base frame 151 is connected to the connector 157 mounted on the side of the base frame 151 of the other transfer device 150 to adjust the distance between the transfer devices 150. Done.

The position sensor 158 is operated to adjust the distance between the transfer device 150, such a distance control between the transfer device 150 is spaced apart from the base frame 151 of the other transfer device 150 The control unit (not shown) controls the operation of the cylinder 161 by the signal of the position sensor 158 for detecting the. The reason for adjusting the distance between the conveying device 150 in this way is because the width of the pallet used in the prior art is divided into two largely depending on the amount of cargo to be loaded tongs 123 of the lift device 110 is used This is to ensure proper insertion according to the width of the pallet.

6A to 6B, the operation of the present invention having the configuration as described above will be described with reference to FIGS. 6A to 6B. When stopped to the place, the transfer device 150 operates the cylinder 161 by detecting the width of the pallet to adjust the distance between each transfer device 150.

Then, the lifter device 110 moves forward to insert the tongs 123 into the pallet. At this time, the clamp 180 mounted on one side of the transfer device 150 (lower back of the base frame 151) is When the lifter device 110 lifts the cargo 500 by the operation of the cylinder 162, the carriage 100 is inclined to one side (front) by the load of the cargo 500. To prevent them.

When the lifter device 110 moves backward in the lifted state of the cargo 500 to stabilize the distribution of the load, the clamp 180 is released from the rail 300, and the transfer device 150 is a cargo vehicle ( Move to the stowage position of 400).

In this position, the clamp 180 is engaged with the rail 300 again, and the lift apparatus 110 moves forward and stops at the loading compartment position, where the distance at which the lift apparatus 110 moves is set in advance. Will move by.

The lift device 110 is lowered to place the cargo 500 in the loading compartment of the freight vehicle 400, in which the load detection sensor 125a mounted to the rear of the fixed plate 121 of the lift device 110 By detecting the load of the cargo 500 by the load of the cargo 500 is "0" the moment the operation of the cylinder 141 is stopped.

The lift device 110 which has stopped descending stops by reversing the distance by a predetermined predetermined value, and then operates the cylinders 142 and 143 to rotate the dog 130 in contact with the tongs 123, and then lifts the device again. Advance 110. At this time, the sensor 125b mounted on the front of the lift device 110 detects the position of the load compartment of the freight vehicle 400 and the distance between the lift device 110 and maintains the distance as much as a predetermined distance. The device 110 is advanced. By the above operation, the cargo 500 is loaded without leaving the loading compartment of the freight vehicle 400.

Afterwards, the transfer device 150 is moved back to the lift device 110, the dog 130 is raised, and the conveyor 200 is located after the clamp 180 is released from the rail 300. Come back.

As described above, the freight loading truck according to the present invention does not require a separate worker in one step, it is possible to prevent the risk of safety accidents occurring during the operation, and also to reduce the cost according to the number of personnel It also has the advantage that it can be easily applied to palettes of various sizes.

In addition, one cargo can be loaded or unloaded at the same time or on a pallet basis, and the lifter can be controlled by a sensor and can be rotated to a certain angle so that regardless of the type of truck. The advantage is that the cargo can be loaded to the appropriate loading standard.

Since the position of the cylinder that allows the lifter to flow up and down is closely connected to the position where the cargo is loaded, the moment generated in the lift device is reduced, and thus the cargo can be loaded with less force.

What has been described above is only one embodiment for carrying out the present invention, and the present invention is not limited to the above-described embodiment, and the present invention is made without departing from the gist of the present invention as claimed in the following claims. Anyone with ordinary knowledge in the field will have the technical spirit of the present invention to the extent that various modifications can be made.

Claims (6)

In a truck for use in a cargo loading system consisting of a conveyor for transporting cargo to a position close to the loading compartment of the cargo vehicle, a rail 300 buried in the ground on both sides of the conveyor and a carriage mounted on the rail , The carriage 500 includes a side plate 112 that is vertically erected at both side ends of the plate-shaped base 111 and has a guide groove 113 of a constant length along an inner surface longitudinal direction, and the base ( A slider 118 having a wheel 117 having a guide 116 mounted at four corners of the bottom surface of the 111, a spiral hole 119 mounted at a center portion of the base bottom surface, and the guide groove 113. And a lifter 120 including a pair of forceps 123 extending forward from one upper end of the fixed plate 121 and the upper and lower sliding plates connected to the upper and lower sides of the fixed plate 121. A lift device (110) mounted to the front upper end surface of the base (111) and including a cylinder (141) connected by the lifter (120) and the hinge (124); And The rail 152 is mounted on the upper surface in the longitudinal direction, and the base frame 151 on which the wheels 154 are mounted on the four corners of the lower surface, and the screw bar 153 mounted on the base frame 151 along the longitudinal direction. ), A motor 170 mounted on one side lower portion of the base frame 151 and connected to one end of the screw bar 153 by a gear or a belt, and mounted on both side wheels 154 in the longitudinal direction. The driving motor 156, the cylinder 161 mounted perpendicularly to the longitudinal direction of the central lower surface of the base frame 151, and the side of the base frame 151 opposite the rod of the cylinder 161. Transfer device 150 comprising a connector 157 to be; Cargo loading carriage, characterized in that consisting of. According to claim 1, wherein the fixing plate 121 is formed on the rear portion of the holder 115, a plurality of guide protrusions 122 are formed in the side portion in the longitudinal direction and is rotatably mounted by the hinge 131 on the front and It is provided with a dog 130 is formed on the end engaging jaw 132, the cradle 115 is a cargo loading, characterized in that coupled to the cylinder (142,143) connected to the other end of the dog 130 For trucks. According to claim 1, The lifter 120 is connected to the position where the rod end of the cylinder 141 is close to the rear end of the forceps 123 of the lifter 120, the width of the guide protrusion 122 (Or diameter) is slightly smaller than the width of the guide groove 113, the load sensor 125a is mounted on the back of the side plate 112, the sensor support 114 on the back of the guide groove 113 ) Is formed so that the lifter 120 is rotated at a predetermined angle around the rod end of the cylinder 141, and the load-carrying car, characterized in that for detecting the load of the cargo 500 loaded on the lifter 120 . The lift apparatus of claim 1, wherein the lift apparatus 110 controls the driving of the motor 170 connected to the screw bar 153 to adjust the distance between the freight vehicle 400 and the lift apparatus 110. Cargo loading truck, characterized in that it further comprises a sensor (125b) in the front portion of (110). The method of claim 1, wherein the drive motor 156 is a cargo loading, characterized in that it comprises a gear box 155 so that the movement is easy and stable when the transfer device 150 moves on the bent rail 300 Carrier. The freight transport vehicle of claim 1, wherein the transfer device (150) further comprises a position sensor (158) mounted at a position adjacent to the connector (157).