JP3226911B2 - Packaging skid manufacturing equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for manufacturing a packaging skid (hereinafter, simply referred to as a skid manufacturing apparatus). More specifically, the present invention relates to an apparatus for automatically manufacturing a skid, which can be called a bottom plate of a packing box for packing an object at the time of export or the like.

[0002]

2. Description of the Related Art A conventional packing skid is disclosed in
One disclosed in Japanese Patent No. 618173 is known.
As shown in FIG. 7A and FIG.
Reference numeral 1 denotes a part of a packing box of the motorcycle B, in which a plurality of sliding members 103 are fixed on a lower surface of a thin rectangular steel plate (hereinafter also referred to as a floor plate) 102 at intervals. Skid guards 104 are fixedly provided on both sides of the upper surface of the floor panel, and a plurality of frame members 105 are fixedly mounted in a direction perpendicular to the skid guards 104 so as to extend between the two skid guards 104. . Furthermore, brackets 106 and 107 for fixing the motorcycle are fixed on the upper surface of the floor plate as needed at positions corresponding to the front and rear wheels of the motorcycle to be packed.

The lubricating member 103 is formed from a thin steel plate by press molding. Sliding material 10 for floor plate 102
At the time of fixing 3, first, an operator positions the lubricating material 103 on one surface of the floor plate 102, and performs temporary attachment with a welding machine as it is. The floor plate 102 has a skid guard 10 in advance.
4 is also temporarily attached. Next, the worker checks the floor plate 10
2 is placed on the conveyor of the spot welding line. Floorboard 1
In reference numeral 02, the sliding material 103 is fixed to the floor plate 102 by a spot welding machine while being conveyed on the conveyor. Further downstream of the line, skid guard 104, frame 105,
The bracket 106, 107 and the like are fixed and the skid 10
Completed as 1. At the downstream end of the spot welding line, the skid is transferred to the packaging frame assembly line. Then, the motorcycle B is placed and fixed on the skid 101,
After that, columns 108 are provided at the four corners and both sides of the skid 101.
Is fixed, and the top frame 109 is fixed over the upper ends of all the supporting columns 108, so that the packing frame 11 in which the motorcycle B is packed is mounted.
0 is completed.

[0004]

Heretofore, the upper surface of the conveyor of the spot welding line, that is, the surface on which the floor plate 102 is placed, has substantially the same height as the upper surface of the conveyor of the packing frame assembly line. . This is because there is no need to turn the skid on the spot welding line,
This is because it is convenient to slide it from the spot welding line to the top of the conveyor on the packaging frame assembly line.

The conveyor surface of the spot welding line and the conveyor surface of the packing frame assembling line are lower than the height of the above-mentioned work table for temporarily attaching a sliding material. This is because, in the packaging frame assembly line, the position where the assembly work of the worker is higher than the mounting position of the skid, while the position where the assembly work of the worker is the mounting position of the skid on the tacking work table. Because it is.

Therefore, the worker who has performed the tacking work of the lubricating material needs to carefully lower the floor plate 102 to the conveyor surface of the spot welding line at a low position by his / her own hand. This can cause a decrease in productivity and an increase in the burden on workers.

SUMMARY OF THE INVENTION The present invention has been made to solve such a problem, and a skid capable of moving a floor plate (skid) from an upstream end to a downstream end of a skid conveying line without greatly burdening an operator's hand. The purpose of the present invention is to provide a manufacturing apparatus.

[0008]

Means for Solving the Problems] skid manufacturing apparatus of the present invention, a transport line for conveying in a substantially horizontal state floorboards, disposed conveying line, to grip the floor
And a bar material is fixed to the floor plate by welding.
And a bar material welding device for
Are gripping means for gripping the floorboard, and the gripping means is
A moving platform that is attached and reciprocates along the transport direction
And the movable gantry has a gripped floor plate.
It is configured to move in the transport direction while stopping for each set.
The gripping means is perpendicular to the front-back direction of the floorboard.
Contact member that can abut the contact part
Contact position with the contact point of the above from the front
Swinging means for swinging back and forth between the
The outer part is located at the position where the contact part of the floorboard is sandwiched by the contact member.
And a locking member that is elastically lowered by a force .

Therefore, the contact member swings to the inoperative position.
When re-gripping new floorboards sequentially,
The transport direction is simple and does not hinder floor transport.
Can be reliably positioned. Also, only the contact members
The gripping device is simple and compact because of the swinging mechanism.
Configuration. As a result, conveyor unit transport
Requires extensive equipment to reciprocate along the direction
do not do.

[0010] The contact portion of the floorboard is the front edge of the floorboard.
And the front of the sliding material borrowed from the underside of the floorboard.

[0011] Further, the transport lines are arranged in series with each other.
Consisting of a plurality of conveyor units
Out of multiple conveyor units
Receiving conveyor that receives the floorboard and transports it downstream
Unit and the lowermost stage to make the floorboard a downstream process
At least one of the discharge conveyor units to discharge
The unit is configured to be able to move up and down
Preferred is a skid manufacturing apparatus.

The reason is that in various processes for manufacturing floorboards,
Work position (height of the position where the floorboard is placed)
In any case, the transfer line receiving conveyor unit and
And / or the discharge conveyor unit is raised and lowered
Because the floorboard can be delivered at the same height
It is. As a result, the labor of the worker is reduced.

[0013]

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a skid manufacturing apparatus according to the present invention will be described based on an embodiment shown in the accompanying drawings. FIG. 1A is a plan view showing an embodiment of the skid manufacturing apparatus of the present invention, and FIG. 1B is a front view thereof.

In the embodiment shown in FIG. 1, a skid transport line 10 composed of three independent endless track conveyors, chain conveyor units 1, 2, and 3, which are arranged in series, and a spot welding apparatus 20 are provided. An example of a manufacturing apparatus provided with the apparatus is shown. Hereinafter, the chain conveyor units are referred to as a first conveyor 1, a second conveyor 2, and a third conveyor 3, respectively. In the figure, reference numeral 10a denotes an endless track zone (chain) of the chain conveyor unit.
Reference symbol b denotes a sprocket wheel for driving the chain 10a, which is rotated by a servomotor 10c (see also FIGS. 3 and 4), and is disposed on all the conveyors 1, 2, and 3, respectively. Things.
The spot welding device 20 is disposed between the second conveyor 2 and the third conveyor 3.

A floor plate Y (see FIG. 2) on which a plurality of lubricating materials L are preliminarily attached at predetermined intervals to a lower surface of a tacking worktable E, which is an upstream process of the skid transfer line 10, is provided. It is placed on the upper surface of the first conveyor 1, which is the receiving conveyor. Skid guards G are already fixed to both sides of the floor plate Y. Then, in order, second,
In the process of being conveyed to the third conveyor, the lubricating material L is fixed to the lower surface of the floor plate Y by the spot welding device 20.

As shown in FIG. 3, the first conveyor 1 has a gantry 5 having legs 4 at four corners, a conveyor main body 6 disposed on the gantry 5, and a vertically moving conveyor main body 6. And two drive cylinders 7 as elevators. The drive cylinder 7 includes a main body 7a having a beam 8a extending between a pair of front legs 4 and a pair of rear legs 4a.
They are respectively attached to the center of the beam 8b passed between them. The rod 7b of each drive cylinder 7 is fixed to the center of a beam 9a fixed to the front part and the center of a beam (not shown) fixed to the rear part on the lower surface of the conveyor main body 6, respectively. That is, the cylinder body 7a is fixed to the gantry 5, and the rod 7b is fixed to the conveyor body 6. The legs 4 serve as guides for guiding the conveyor body 6 up and down, and guided members 10d, each of which is nested in the guides, project from four corners of the conveyor body 6. As the lift, a known linear drive such as an electric motor and a ball screw may be used instead of the drive cylinder.

In FIG. 1, when the first conveyor 1 of the lifting type receives a floor plate Y from a tacking work table E,
The conveyer main body 6 is raised until the floor plate mounting surface thereof coincides with the floor plate mounting surface of the temporary work table E. Then, the worker can move the floor plate Y from the tacking work table E onto the first conveyor 1 without requiring much labor.

As shown in FIG. 1, each conveyor 1, 2, 3
Is provided with a floor plate pressing device 11 for positioning the floor plate on the conveyor. This floor plate pressing device 1
1 is disposed on one side of each of the conveyors 1, 2, and 3, and elastically presses the conveyed floorboard Y against the side wall W on the other side of the conveyor, thereby forming a right angle to the conveyance direction. This is for positioning in a direction (hereinafter, also referred to as a lateral direction). This floor plate pressing device 11 is attached to all the conveyors 1, 2, and 3, and all the floor plate pressing devices 11 have substantially the same configuration. Of course, the floor slab pressing device 11 need not always be provided on all conveyors. For example, third conveyor 3
And the floor plate Y may be positioned by the floor plate pressing device 11 of the second conveyor 2 during welding.

The floor plate pressing device 11 will be described with reference to the second conveyor 2 shown in FIG. On the side of the conveyor, a pair of pressing arms 12 spaced apart in the transport direction is disposed so as to extend in the lateral direction. A pressing plate 13 extending along the conveying direction of the conveyor is attached to the distal ends of both pressing arms 12 via a spring member 12a. The pressing plate 13 is a member for contacting the side edge of the floor plate Y and pressing the floor plate Y against the side wall W of the conveyor. This side wall W becomes a reference position for positioning in the lateral direction. With the interposition of the spring member 12a,
An excessive load is prevented from being applied to the floor plate during the pressing. The pressing plate 13 is moved by a ball screw 15 rotated by a servomotor 14 so as to approach and separate from the side wall W of the conveyor. The amount of movement of the pressing arm 12 for pressing the floor plate is determined based on a position signal (corresponding to the width dimension of the floor plate Y) corresponding to the type of the motorcycle (corresponding to the width dimension of the floor plate Y) sent from a control device (not shown). Controlled as a quantity.

As shown in FIG. 1, the third conveyor 3, that is, the conveyor 3 downstream of the spot welding device 20, is provided with a holding device 30 for holding the floor plate Y and moving it while stopping at a predetermined welding position. Have been. That is, the gripping device 30 is conveyed to the second conveyor 2 and is positioned at the front end of the floor plate Y positioned in the width direction by the floor plate pressing device 11 (the front end is located at the position of the spot welding device). ) Is gripped by the gripping portion 31, and is conveyed while stopping the welding positions at a plurality of places on the floor plate Y at positions corresponding to the spot welding devices 20. In other words, it is a device for positioning the floor board Y in the transport direction.

As shown in FIGS. 1 and 5, in the present embodiment, the gripping device 30 is disposed on the third conveyor 3 so as to be able to reciprocate in the transport direction. Specifically, the gripping device 30 is provided with a servomotor 32, and a rack 34 is laid on the third conveyor 3 below the conveyor body 33 in the transport direction. The gripping device 30 is slidably engaged with a guide rail (not shown), and
2a is engaged with the rack 34.

The gripping device 30 has a support arm 35 extending upstream, and the grip portion 31 is formed near the tip of the support arm 35. As a result, when the gripper 30 is located at the most upstream end of the reciprocating stroke, that is, at the upstream end of the third conveyor 3, the gripper 31 grips the floor plate front end at the position of the spot welding device. Can be.

The movement of the holding device 30 holding the floor plate Y in the downstream direction is based on a position signal (corresponding to an installation interval of the sliding material of the floor plate Y) corresponding to the type of the motorcycle sent from a control device (not shown). Is controlled as the rotation amount of the servo motor 32 determined in advance.

As shown in FIG. 6, the grip portion 31 has a swingable contact member 36 and a locking mechanism 37 which is elastically lowered by an external force. The contact member 36 has a substantially L-shape, and a contact portion 36a is formed at the tip thereof. The abutment member 36 is pivotally supported by a stand 38 fixed to the tip of the support arm 35 so as to be swingable, and is swingably driven by a drive cylinder 39 disposed on the support arm 35. The contact member 36 has a contact portion 3
6a is swung between an operating position where it comes into contact with the front surface of the front sliding material L of the floor plate Y that has been transported, and a lower non-operating position where the floor plate Y does not interfere when the floor plate Y is transported further downstream. Since the drive cylinder 39 displaces the small contact member 36 by a short stroke, a small drive cylinder can be used.

On the other hand, on the support arm 35, on the upstream side of the abutting member 36, the above-mentioned locking mechanism 37 for locking to the sliding material L of the floor plate Y to lock the floor plate Y with the abutting member 36. Are arranged. The locking mechanism 37 includes a locking member 37b that can be elastically lowered by interposing an elastic member 37a such as a coil spring below. The distance between the front end face 37c of the locking member 37b and the contact portion 36a is slightly larger than the thickness of the sliding material L at the frontmost portion of the floor plate Y. The upper surface of the locking member 37b is formed as an inclined surface 37d inclined backward. The locking mechanism 37 includes a stopper 37e for positioning the contact member 36 that has reached the operation position.

When the gripping device 30 is located at the upstream end of the third conveyor 3, the abutting member 36 is in the upright position. Then, the front edge of the lower end of the foremost sliding material L of the conveyed floor plate Y presses the inclined surface 37d to lower the locking member 37b. The front edge of the lubricating material L is
Immediately before the sliding member L comes into contact with the contact portion 36a,
b, the pressing force of the locking member 37b is released, and the locking member 37b is raised by the restoring force of the elastic member 37a. At this time, the locking member 37b enters the upstream side of the sliding material L.
As a result, the floor plate Y holds the portion of the sliding material L
Is gripped. At this point, the floor plate Y is initially positioned in the transport direction. Thereafter, the floor plate Y is conveyed downstream by the gripping device 30 while stopping at a position corresponding to the welding gun 21 of the spot welding device 20 at each welding point of the plurality of lubricating materials L. That is, the positioning of the floor plate Y in the transport direction is performed for each welding.

When the welding of the lubricating material L for one floor plate Y is completed, the gripping device 30 has moved to the most downstream position of the third conveyor 3. At that time, the gripping device 30
The contact member 36 swings down to the non-operating position to release the grip on the floor plate Y, and the welded floor plate Y is transported downstream. On the other hand, the gripping device 30 returns to the position at the upstream end of the third conveyor 3 with the contact member 36 swinging down to the non-operating position. Then, the abutting member 36 is erected to the operating position again and waits for the arrival of the next floor plate Y.

As shown in FIG. 1, a pair of spot welding devices 20 are provided on both sides between the second conveyor 3 and the third conveyor 3. In the present embodiment, one is a fixed welding machine 21 and the other is a movable welding machine 22. Then, the lubricating material L extending in the width direction of the floor plate Y is spot-welded on one side to the floor plate Y by the fixed welder 21 and the other side is spot-welded to the floor plate Y by the movable welder 22 from the middle.
The movable welding machine 22 is configured to be able to move in the lateral direction according to the type of the motorcycle (according to the width dimension of the floor plate Y). In this embodiment, each of the welding machines 21 and 22 has six welding guns 23.

As described above, the floor plate Y is connected to the floor plate pressing device 11.
As a result, it is pressed against the side wall W of the conveyor (the side wall on which the fixed welding machine 21 is disposed), so that the welding position by the fixed welding machine 21 is already positioned. A servo motor 24 and a ball screw 25 are provided to move the movable welding machine 22 in the lateral direction according to the width of the floor plate Y. The movement of the movable welding machine 22 is controlled as a rotation amount of a servomotor 24 determined based on a position signal (corresponding to the width dimension of the floor plate Y) corresponding to the type of the motorcycle (corresponding to the width of the floor plate Y) sent from a control device (not shown).

In the above embodiment, the motorcycle is taken as an example of the article to be packed. However, the object to be packed is not limited to the motorcycle.

[0032]

According to the skid manufacturing apparatus of the present invention, the floor plate (skid) can be moved from the upstream end to the downstream end of the skid transfer line without much trouble of the operator.

[Brief description of the drawings]

FIG. 1A is a plan view showing an embodiment of a skid manufacturing apparatus according to the present invention, and FIG. 1B is a front view thereof.

2 (a) is a plan view showing an example of a skid manufactured by the skid manufacturing apparatus of FIG. 1, and FIG. 2 (b)
Is a front view, and FIG. 2C is a side view.

3 (a) is a plan view showing an example of a first conveyor provided with a lifting mechanism in the skid manufacturing apparatus of FIG. 1, and FIG. 3 (b) is a front view thereof. (c) is a side view thereof.

4 (a) is a plan view showing an example of a second conveyor provided with a floor plate pressing device in the skid manufacturing apparatus of FIG. 1, and FIG. 4 (b) is a side view.

FIG. 5 is a front view schematically showing a gripping device provided on a third conveyor of FIG. 1;

FIG. 6 is a partially cutaway front view showing a grip portion in the grip device of FIG. 5;

7 (a) is a front view showing an example of a conventional motorcycle packaging frame, and FIG. 7 (b) is a sectional view taken along line VII-VII of FIG. 7 (a) showing a skid of the packaging frame. It is.

[Explanation of symbols]

 1 ··· First conveyor 2 ··· Second conveyor 3 ··· Third conveyor 4 ··· Legs 5 ··· Stand 6 ··· Conveyor body 7 ··· Drive Cylinder 7a Main body (of driving cylinder) 7b Rod (of driving cylinder) 8a, 8b ... Beam 9a ... Beam 10 ... Skid transport line 10a ... ··· Chain 10b ··· Sprocket wheel 10c ··· Servo motor 10d ··· Guided member 11 ··· Floor plate pressing device 12 ··· Press arm 12a ··· Spring member 13 ··· Press plate 14 ··· Servo motor 15 ··· Ball screw 20 ··· Spot welding device 21 ··· Fixed welding machine 22 ··· Movable welding machine 23 ··· Welding gun 24 ··· ..Servo motor 25 Ball screw 30 ···· Grip device 31 ··· Grip unit 32 ··· Servo motor 32a ··· Pinion 33 ··· Conveyor body 34 ··· Rack 35 ··· Support arm 36 ··· · Contact member 36a · · · Contact portion 37 · · · Locking mechanism 37a · · · Elastic member 37b · · · Locking member 37c · · · Front end face 37d · · · Slope 37e Stopper 38 Stand 39 Drive cylinder B Bracket E Temporary work table G Skid guard L Slipper S ..Skids W ........ Side walls Y ... Slabs

────────────────────────────────────────────────── ─── Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI B65G 47/52 B65G 47/52 B // B65D 19/28 B65D 19/28 Z (72) Inventor Kazunobu Morada Akashi, Hyogo Prefecture 1-1, Kawasaki-cho, Akashi Plant of Kawasaki Heavy Industries, Ltd. (56) References JP-A-61-209830 (JP, A) JP-A-52-10980 (JP, A) JP-A-2-120421 (JP, U) JP-A-5-41640 (JP, U) JP-A-2-7928 (JP, U) Patent 2618173 (JP, B2) (58) Fields investigated (Int. Cl. ⁷ , DB name) B23P 19 / 00-21/00 B65G 47/52 B65D 19/28

Claims (2)

(57) [Claims] 1. A a conveying line for conveying in a substantially horizontal state floorboards, disposed conveying line, the gripping device for gripping a floor plate
And a bar material for fixing the bar material to the floor plate by welding
A welding device , wherein the gripping device comprises: gripping means for gripping a floor plate;
A gripping means is attached and reciprocates along the transport direction
And the movable gantry stops at each welded portion of the gripped floorboard.
The gripping means is configured to move in the conveying direction, and the
A contact member that can contact the
Non-operation that cannot contact the working position that contacts the contact part from the front
Swing means for reciprocatingly swinging to and from the contact position,
With an external force
And a locking member that is resiliently lowered . 2. The transfer lines are arranged in series with each other.
Consisting of multiple conveyor units
Of the several conveyor units, the floor
Receiving conveyor unit that receives plates and transports them downstream
To discharge floorboard to downstream process
At least one of the discharge conveyor units
2. The packaging skid manufacturing apparatus according to claim 1, wherein the knit is configured to be moved up and down .