KR101797994B1 - Conveyor - Google Patents

Abstract

The conveyor according to the present invention includes a front fixed rail, a rear fixed rail provided parallel to the front fixed rail, and a rear fixed rail provided movably in parallel with the front fixed rail between the front fixed rail and the rear fixed rail A rear moving rail provided between the front moving rail and the rear fixing rail so as to be movable in parallel with the rear fixing rail; a sensing unit for sensing a position of the front moving rail and the rear moving rail; And a controller for selecting a home position of the front moving rail and the rear moving rail based on the position of the front moving rail and the rear moving rail sensed by the sensing unit and selecting the home position of the front moving rail and the rear moving rail, And a control unit for moving the rail.

Description

Conveyor {CONVEYOR}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a conveyor, and more particularly, to a dual lane conveyor capable of adjusting a width of a lane.

2. Description of the Related Art In general, a component mounting apparatus is an apparatus for mounting various electronic products on a printed circuit board. A printed circuit board is transferred to a work zone in a component mounting apparatus by a conveyor apparatus. Are mounted at their respective positions.

Recently, in order to improve the productivity, a dual lane system in which two printed circuit boards simultaneously enter the work zone and simultaneously mounts and discharges the components on the two printed circuit boards is used, and the dual lane width adjustment A conveyor that can be used as a general purpose for a printed circuit board having various sizes has been developed and used.

A conveyor capable of adjusting the width of the dual lane generally includes a rail fixed to the front and rear, respectively, and two moving rails reciprocating therebetween, and the width of the dual lane is adjusted through two movable rails .

However, in the case of using the dual lane type conveyor, there is no function of detecting the position of the two movable rails when the conveyor is operated for the first time or when the conveyor is rebooted due to an error or the like, Two possible rails should be relocated.

Further, even when the function of moving two movable rails to the home position is included at the time of reloading the conveyor, there is no function of detecting the position of the two movable rails, so that the movable two rails are moved to the home position During the course of the process, two rails collide with each other or an error recurs when moving to the home position.

Also, the home position of the dual conveyor is normally set so that two movable rails are positioned at the center. In order to transport a large printed circuit board, one lane of the dual lane is controlled to be wide and the other lane is minimized, There is an inconvenience that two rails returning to the home position must be moved again.

Korean Patent Laid-Open No. 10-2010-0001174 (published on Jan. 11, 2010)

The present invention provides a conveyor for detecting a position of two movable rails and controlling a movable rail by selecting one of various home positions according to the positions of the two detected rails.

The problems to be solved by the present invention are not limited to the above-mentioned problems, and other matters not mentioned can be clearly understood by those skilled in the art from the following description.

According to an aspect of the present invention, there is provided a conveyor including a front fixed rail, a rear fixed rail provided parallel to the front fixed rail, and a rear fixed rail provided between the front fixed rail and the rear fixed rail, A rear moving rail provided movably in parallel with the rear fixed rail between the forward moving rail and the rear fixed rail, and a rear moving rail provided between the front moving rail and the rear fixed rail, A sensing unit for sensing a position of the movable rail; a selection unit for selecting a home position of the forward movement rail and the backward movement rail based on the positions of the forward movement rail and the rear movement rail sensed by the sensing unit, And a control unit for moving the front moving rail and the rear moving rail He said,

Wherein the control unit includes a dual lane home position in which the forward movement rail and the rearward movement rail are located at a central portion between the front fixed rail and the rear fixed rail, the forward movement rail and the rear movement rail are adjacent to the front fixed rail And a rear single lane home position in which the front moving rail and the rear moving rail are positioned adjacent to the rear fixing rail are selected as the home position.

According to an aspect of the present invention, there is provided a conveyor including a front fixed rail, a rear fixed rail provided parallel to the front fixed rail, and a rear fixed rail provided between the front fixed rail and the rear fixed rail, A rear movable rail provided movably in parallel with the rear fixed rail between the front movable rail and the rear fixed rail, and a rear movable rail movable between a front fixed rail and a rear fixed rail, A first linear dog extending from a central portion between the fixed rails in the direction of the rear fixed rail, a second linear dog extending from the central portion in the direction of the front fixed rail, and a second linear dog extending between the central portion and the front fixed rail A first front dog for marking a forward limit position of the forward movement rail, A second front dog provided between the first front dog and the center portion for marking a forward limit position of the rearward movement rail, and a second front dog provided between the center portion and the rear fixed rail to cover the rear limit position of the rearward movement rail, A second rear dog provided between the first rear dog and the center portion for marking a rear limit position of the forward travel rail and a second rear dog provided on the forward travel rail, A second sensor provided on the forward movement rail for sensing the first linear dog and a second sensor provided on the rearward movement rail for detecting the second rear dog and the second rear dog, A fourth sensor for detecting the second linear dog, and a third sensor for detecting the first linear sensor, the second sensor, the third sensor, And based on the detection result of said fourth sensor and a controller to determine a position of the forward movement and the backward movement the rail and the rail, providing a control sequence for the forward movement and the backward movement rail rail.

Other specific details of the invention are included in the detailed description and drawings.

According to the present invention, since the conveyor itself grasps the positions of the forward moving rails and the rear moving rails and selects the home position most suitable for the position of each of the rails and moves each of the rails to the corresponding home position, The rails and the rear travel rails can be moved to the home position.

It is also possible to determine the position of the front moving rail and the rear moving rail by itself and determine whether the conveyor is operating in the dual lane mode or the single lane mode on the basis of the position and determine whether each rail is in the home position So that continuity of work is ensured and efficiency and productivity are improved.

The effects according to the present invention are not limited by the contents exemplified above, and more various effects are included in the specification.

1 is a view schematically showing a conveyor according to an embodiment of the present invention.
2 is a schematic view illustrating a dual lane home position state of a conveyor according to an embodiment of the present invention.
FIG. 3 is a schematic view illustrating a rear single-lane home position state of the conveyor according to the embodiment of the present invention.
4 is a schematic view illustrating a front single-lane home position state of the conveyor according to the embodiment of the present invention.
5 is a view schematically showing a state in which the output values of the first sensor and the third sensor of the conveyor according to the embodiment of the present invention are 0 and the output values of the second sensor and the fourth sensor are 1, respectively.
6 is a view schematically showing a state in which the output values of the first sensor, the second sensor, the third sensor and the fourth sensor of the conveyor according to the embodiment of the present invention are zero.
7 is a view schematically showing a state in which the output value of the second sensor of the conveyor according to the embodiment of the present invention is 1 and the output values of the first sensor, the third sensor and the fourth sensor are zero.
8 is a view schematically showing a state in which the output values of the first sensor and the fourth sensor of the conveyor according to the embodiment of the present invention are 0 and the output values of the second sensor and the third sensor are 1, respectively.
9 is a view schematically showing a state in which the output value of the first sensor, the second sensor and the third sensor of the conveyor according to the embodiment of the present invention is 1 and the output value of the fourth sensor is 0. FIG.
10 is a view schematically showing a state in which the output values of the first sensor and the second sensor of the conveyor according to the embodiment of the present invention are 1 and the output values of the third sensor and the fourth sensor are 0, respectively.
11 is a view schematically showing a state in which the output value of the fourth sensor of the conveyor according to the embodiment of the present invention is 1 and the output values of the first sensor, the second sensor and the third sensor are zero.
12 is a view schematically showing a state in which the output values of the first sensor and the fourth sensor of the conveyor according to the embodiment of the present invention are 1 and the output values of the second sensor and the third sensor are 0, respectively.
13 is a view schematically showing a state in which the output value of the second sensor of the conveyor according to the embodiment of the present invention is 0 and the output values of the first sensor, the third sensor and the fourth sensor are 1. FIG.
FIG. 14 is a view schematically showing a state in which the output values of the first sensor and the second sensor of the conveyor according to the embodiment of the present invention are 0, and the output values of the third sensor and the fourth sensor are 1, respectively.
15 is a view schematically showing a state in which the output values of the first sensor and the third sensor of the conveyor according to the embodiment of the present invention are 1 and the output values of the second sensor and the fourth sensor are 0, respectively.
16 is a view schematically showing a state in which the output value of the first sensor of the conveyor according to the embodiment of the present invention is 1 and the output values of the second sensor, the third sensor and the fourth sensor are zero.
17 is a view schematically showing a state in which the output value of the third sensor of the conveyor according to the embodiment of the present invention is 1 and the output values of the first sensor, the second sensor and the fourth sensor are zero.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention and the manner of achieving them will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Is provided to fully convey the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

Although the first, second, etc. are used to describe various elements, components and / or sections, it is needless to say that these elements, components and / or sections are not limited by these terms. These terms are only used to distinguish one element, element or section from another element, element or section. Therefore, it goes without saying that the first element, the first element or the first section mentioned below may be the second element, the second element or the second section within the technical spirit of the present invention.

The terminology used herein is for the purpose of illustrating embodiments and is not intended to be limiting of the present invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. As used herein, the terms "comprises" and / or "made of" means that a component, step, operation, and / or element may be embodied in one or more other components, steps, operations, and / And does not exclude the presence or addition thereof.

Unless defined otherwise, all terms (including technical and scientific terms) used herein may be used in a sense commonly understood by one of ordinary skill in the art to which this invention belongs. Also, commonly used predefined terms are not ideally or excessively interpreted unless explicitly defined otherwise.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

1 is a view schematically showing a conveyor according to an embodiment of the present invention.

1, the conveyor 1 according to the embodiment of the present invention includes a front fixed rail 10, a front movable rail 11, a rear fixed rail 20, and a rear movable rail 21 do.

The front fixed rail 10 and the front movable rail 11 form a front lane on which a substrate (not shown) is moved and the rear fixed rail 20 and the rear movable rail 21 form a rear lane on which the substrate is moved do.

The front moving rail 11 is parallel to the front fixed rail 10 and movably provided between the front fixed rail 10 and the rear fixed rail 20. [

The rear moving rail 21 is parallel to the rear fixed rail 20 and is movably provided between the forward moving rail 11 and the rear fixed rail 20. [

That is, although the forward movement rail 11 and the rearward movement rail 21 are movably provided, the forward movement rail 11 is always positioned in front of the rearward movement rail 21.

The front fixed rail 10 and the rear fixed rail 20 are fixed to a base (not shown) on which the conveyor 1 is installed and the front movable rail 11 and the rear movable rail 21 (Not shown) provided between the front fixed rail 10 and the rear fixed rail 20 so as to be movable between the front fixed rail 10 and the rear fixed rail 20. [

A driving motor (not shown) for driving the front moving rail 11 and the rear moving rail 21 may be provided. The forward moving rail 11 and the rear moving rail A power transmission device (not shown) may be provided to move the rail 21 forward or backward.

Since the components not shown in the above description are obvious to those skilled in the art, drawings and description thereof will be omitted.

The conveyor 1 according to the embodiment of the present invention senses the positions of the front moving rail 11 and the rear moving rail 21 and detects the positions of the front moving rail 11 and the rear moving rail 21 in the home position And a sensing unit that senses whether or not the sensing unit is positioned in the sensing unit.

The sensing unit includes a first sensor 41 and a second sensor 42 provided on the front moving rail 11, a third sensor 43 and a fourth sensor 44 provided on the rear moving rail 21, A first linear dog 35, a second linear dog 36, a first front dog 31, a second front dog 33, a first rear dog 35, and a second rear dog 35, which are provided between the rail 10 and the rear fixed rail 20, A dog 34 and a second rear dog 32, and a first sensing unit 130 and a second sensing unit 120.

The first linear dog 35 is a linear member extending from the central portion between the front fixed rail 10 and the rear fixed rail 20 to the rear fixed rail 20 and the second linear dog 36 is fixed to the front fixed And may be a linear member extending from the central portion between the rail 10 and the rear fixed rail 20 to the front fixed rail 10.

The first linear dog 35 and the second linear dog 36 are provided in a substantially vertical direction with respect to the front fixed rail 10 and the rear fixed rail 20 so that the front movable rail 11 and the rear movable rail 21, As shown in FIG.

The first front dog 31 is provided between the center portion between the front fixed rail 10 and the rear fixed rail 20 and the front fixed rail 10 to mark the forward limit position of the front movable rail 11 . Preferably, the first front dog 31 may be provided adjacent to the front fixed rail 10.

The second front dog 33 is provided between the central portion between the front fixed rail 10 and the rear fixed rail 20 and the first front dog 31 so as to cover the forward limit position of the rear movable rail 21. [ have.

The first rear dog 34 can be provided between the center portion between the front fixed rail 10 and the rear fixed rail 20 and the rear fixed rail 20 to mark the rear limit position of the rear movable rail 21 . Preferably, the first rear dog 34 may be provided adjacent the rear fixed rail 20.

The second rear dog 32 is provided between the center portion between the front fixed rail 10 and the rear fixed rail 20 and the first rear dog 34 so as to cover the rear limit position of the front movable rail 11. [ have.

The first sensor 41 senses the first front dog 31 or the second rear dog 32 in accordance with the movement of the forward movement rail 11 and the second sensor detects the movement of the forward movement rail 11 And senses the first linear dog 35.

The third sensor 43 detects the second front dog 33 or the first rear dog 34 in accordance with the movement of the rear moving rail 21 and the fourth sensor detects the rear moving rail 21 according to the movement of the rear moving rail 21. [ And senses the second linear dog 36.

The first sensor 41 and the second sensor 42 are connected to the first sensing unit 130 and the third sensor 43 and the fourth sensor 44 are connected to the second sensing unit 120 do.

The first sensing unit 130 senses whether the first front dog 31 or the second rear dog 32 of the first sensor 41 is sensed and the first linear dog 35 of the second sensor 42 senses And the second sensing unit 120 determines whether or not the second front dog 33 or the first rear dog 34 of the third sensor is sensed and the second linear dog 36 of the fourth sensor is sensed, .

The first sensing unit 130 sets the output value of the first sensor 41 to 1 when the first sensor 41 senses the first front dog 31 or the second rear dog 32, 1 sensor 41 can not detect any of the first front dog 31 and the second rear dog 32, the output value of the first sensor 41 can be set to zero.

In the same manner, when the second sensor 42 senses the first linear dog 35, the first sensing unit 130 sets the output value of the second sensor 42 to 1 and the second sensor 42 Can not detect the first linear dog 35, the output value of the second sensor 42 can be set to zero.

The second sensing unit 120 sets the output value of the third sensor 43 to 1 when the third sensor 43 senses the second front dog 33 or the first rear dog 34, 3 sensor 43 can not detect any one of the second front dog 33 and the first rear dog 34, the output value of the third sensor 43 can be set to zero.

In the same manner, when the fourth sensor 44 senses the second linear dog 36, the second sensing unit 120 sets the output value of the fourth sensor 44 to 1 and the fourth sensor 44 Can not detect the second linear dog 36, the output value of the fourth sensor 44 can be set to zero.

Through the above-described configuration, the sensing unit senses the forward movement rail 11 and the rear movement rail 21 (see FIG. 2) through the output values of the first sensor 41, the second sensor 42, the third sensor 43 and the fourth sensor 44, , And can detect whether the front moving rail 11 and the rear moving rail 21 are positioned at the home position. A detailed description thereof will be described later.

The conveyor 1 according to the embodiment of the present invention further includes a control unit 110, a display unit 140, and an input unit 150.

The control unit 110 receives the output values of the first sensor 41, the second sensor 42, the third sensor 43 and the fourth sensor 44 from the first sensing unit 130 and the second sensing unit 120 It is necessary to grasp the positions of the front moving rail 11 and the rear moving rail 21 and to move the front moving rail 11 and the rear moving rail 21 to the home position suitable for the found position . The control unit 110 controls the forward movement rail 11 and the rear movement rail 21 according to the output values of the first sensor 41, the second sensor 42, the third sensor 43 and the fourth sensor 44, The home position control sequence of the home position control sequence may be input in advance.

The display unit 140 displays various kinds of information about the conveyor 1. For example, the output values of the first sensor 41, the second sensor 42, the third sensor 43, and the fourth sensor 44 are displayed. Based on the output values, the forward movement rail 11 and the rear movement rail 11, It is possible to display the position of the display unit 21.

The input unit 150 can control the forward movement rail 11 and the rear movement rail 21 in response to an instruction from the operator when a separate control sequence other than the control sequence previously stored in the control unit 110 is required .

The conveyor 1 according to the embodiment of the present invention is formed by the front lane formed by the front fixed rail 10 and the front movable rail 11 and the rear fixed rail 20 and the rear movable rail 21 It is possible to use the dual lane mode in which the rear lane is activated and the substrate is moved to the front lane and the rear lane, respectively.

When used in the dual lane mode, the forward movement rail 11 can be moved so that the width of the front lane is shifted to the front lane, and the width of the rear lane is moved to the rear lane. The rear moving rail 21 can be moved and arranged to correspond to the width.

Also, the conveyor 1 according to the embodiment of the present invention can be switched to the forward single lane mode in which only the front lane is activated and the rear lane is inactivated to move the substrate only to the front lane. For this purpose, the rear moving rail 21 can be moved on the first rear dog 34, and the front moving rail 11 can be moved and arranged corresponding to the width of the substrate moving to the front lane.

Also, in the conveyor 1 according to the embodiment of the present invention, only the rear lane is activated and the front lane is inactivated, so that the mode can be switched to the rear single lane mode in which the substrate is moved only in the rear lane. For this purpose, the front moving rail 11 can be moved on the first front dog 31, and the rear moving rail 21 can be moved and arranged corresponding to the width of the substrate moving to the rear lane.

The front single lane mode or the rear single lane mode can be used when the substrate to be moved is wide and it is difficult to move to the dual lane mode or when the equipment arranged on both sides of the conveyor 1 is a single lane equipment.

The conveyor 1 according to the embodiment of the present invention provides three home positions of a dual lane home position, a front single lane home position, and a rear single lane home position.

FIG. 2 is a schematic view showing a dual lane home position state of a conveyor according to an embodiment of the present invention. FIG. 3 is a schematic view of a rear single lane home position state of a conveyor according to an embodiment of the present invention And FIG. 4 is a view schematically showing a front single-lane home position state of the conveyor according to the embodiment of the present invention.

2, the dual lane home position is a state in which the forward movement rail 11 and the rearward movement rail 21 are located at the central portion. Specifically, when the forward movement rail 11 is positioned at the first linear dog 35 , And the rear moving rail 21 is positioned adjacent to the rear end of the second linear dog 36. The rear linear movement of the second linear dog 36 can be set in a state in which the rear movable rail 21 is positioned adjacent to the rear end of the second linear dog 36. [ 2, the output values of the first sensor 41, the second sensor 42, the third sensor 43, and the fourth sensor 44 are all zero.

When the forward movement rail 11 is on the first linear dog 35, the control unit 110 moves the forward movement rail 11 forward, The forward movement rail 11 can be stopped and the forward movement rail 11 can be positioned at the dual lane home position at the moment when the output value of the forward movement rail 42 is switched from 1 to 0. If necessary, the control unit 110 may move the forward movement rail 11 further forward and / or backward to place it in the dual lane home position.

When the forward moving rail 11 is not positioned on the first linear dog 35, the control unit 110 moves the forward moving rail 11 backward, The forward movement rail 11 is stopped at a moment when the output value of the sensor 42 is switched from 0 to 1 and then the forward movement rail 11 is moved forward by a predetermined distance or the output value of the second sensor 42 The forward movement rail 11 can be stopped and the forward movement rail 11 can be positioned at the dual lane home position at the instant of switching from 1 to 0.

When the rear moving rail 21 is on the second linear dog 36, the control unit 110 moves the rear moving rail 21 rearward and moves the rear moving rail 21 to the fourth The rear moving rail 21 can be stopped and the rear moving rail 21 can be positioned in the dual lane home position at the moment when the output value of the sensor 44 is switched from 1 to 0. If necessary, the control unit 110 may further move the rearward movement rail 21 forward and / or backward to place the rearward movement rail 21 in the dual lane home position.

When the rear moving rail 21 is not positioned on the second linear dog 36, the control unit 110 moves the rear moving rail 21 toward the front and moves the fourth moving rail 21, which is output by the second sensing unit 120, The rearward movement rail 21 is moved backward by a predetermined distance after stopping the rearward movement rail 21 at the moment when the output value of the sensor 44 is switched from 0 to 1 or the output value of the fourth sensor 44 The rear moving rail 21 can be stopped and the rear moving rail 21 can be positioned at the dual lane home position.

2, the dual rail home position is such that the forward travel rail 11 is located on the front end of the first linear dog 35 and the rear travel rail 21 is located on the rear end of the second linear dog 36 As shown in FIG. In this case, the output values of the first sensor 41 and the third sensor 43 are 0, and the output values of the second sensor 42 and the fourth sensor 44 are 1, respectively.

In this case, when the forward movement rail 11 is not positioned on the first linear dog 35, the control unit 110 moves the forward movement rail 11 backward, The forward movement rail 11 can be stopped and the forward movement rail 11 can be positioned at the dual lane home position at the moment when the output value of the second sensor 42 outputted from the second sensor 42 is switched from 0 to 1. [ If necessary, the control unit 110 may move the forward movement rail 11 further forward and / or backward to place it in the dual lane home position.

When the forward movement rail 11 is on the first linear dog 35, the control unit 110 moves the forward movement rail 11 toward the front and moves the forward movement rail 11 forward The front moving rail 11 is stopped at a moment when the output value of the second sensor 42 is switched from 1 to 0 and then the front moving rail 11 is moved backward by a predetermined distance, The forward movement rail 11 can be stopped and the forward movement rail 11 can be positioned at the dual lane home position when the output value is switched from 0 to 1. [

When the rear moving rail 21 is not positioned on the second linear dog 36, the controller 110 moves the rear moving rail 21 toward the front, 4 sensor 44 is switched from 0 to 1, the rear moving rail 21 can be stopped and the rear moving rail 21 can be positioned at the dual lane home position. If necessary, the control unit 110 may further move the rearward movement rail 21 forward and / or backward to place the rearward movement rail 21 in the dual lane home position.

When the rear moving rail 21 is on the second linear dog 36, the control unit 110 moves the rear moving rail 21 rearward, When the output value of the fourth sensor 44 is changed from 1 to 0, the rearward movement rail 21 is stopped and then the rearward movement rail 21 is moved forward by a predetermined distance, The rear moving rail 21 can be stopped and the rear moving rail 21 can be positioned at the dual lane home position at the instant of switching from 0 to 1.

Hereinafter, for convenience of explanation, it is assumed that the state shown in FIG. 2 is assumed to be a dual lane home position.

3, the rear single-lane home position is a state in which the front moving rail 11 and the rear moving rail 21 are positioned adjacent to the front fixed rail, specifically, the front moving rail 11, The rearward movement rail 21 is positioned adjacent to the rear end of the first front dog 31 and the rearward movement rail 21 is positioned adjacent to the rear end of the second front dog 33. [ 3, the output values of the first sensor 41, the second sensor 42, and the third sensor 43 become zero, and the output value of the fourth sensor 44 becomes one.

The forward movement rail 11 can not approach the front fixed rail 10 beyond the first front dog 31 in a general situation. The control unit 110 controls the forward movement rail 11 to move forward when the output value of the first sensor 41 output from the first sensing unit 130 is changed from 0 to 1 while the forward movement rail 11 is moved forward The forward movement rail 11 is moved backward by a predetermined distance or the forward movement rail 11 is stopped at the moment when the output value of the first sensor 41 is switched from 1 to 0, The rail 11 can be positioned at the rear single lane home position.

When the forward movement rail 11 is located on the first front dog 31 in a special situation, the control unit 110 moves the forward movement rail 11 backward and outputs the forward movement rail 11, which is output by the first sensing unit 130 The forward movement rail 11 can be stopped and the forward movement rail 11 can be positioned at the backward single lane home position at the moment when the output value of the first sensor 41 is switched from 1 to 0. If necessary, the controller 110 may further move the front moving rail 11 forward and / or backward to position the rear moving rail 11 in the rear single lane home position.

Further, the rearward movement rail 21 can not approach the front fixed rail 10 beyond the second front dog 33. The control unit 110 moves the rear moving rail 21 forward and at the moment when the output value of the third sensor 43 output by the second sensing unit 120 changes from 0 to 1, The rear moving rail 21 is moved backward by a predetermined distance or the rear moving rail 21 is stopped at the moment when the output value of the third sensor 43 is switched from 1 to 0, The rail 21 can be positioned at the rear single-lane home position.

When the rear moving rail 21 is positioned on the second front dog 33 in a special situation, the control unit 110 moves the rear moving rail 21 backward and outputs the rear moving rail 21 The rear travel rail 21 can be stopped and the rear travel rail 21 can be positioned at the rear single lane home position at the moment when the output value of the third sensor 43 is switched from 1 to 0. If necessary, the controller 110 may further move the rearward movement rail 21 forward and / or backward to position the rearward movement rail 21 in the rear single lane home position.

3, the single lane home position is a state in which the front moving rail 11 is positioned above the first front dog 31 and the rear moving rail 21 is positioned above the second front dog 33 Can be set. In this case, the output values of the first sensor 41, the third sensor 43, and the fourth sensor 44 are 1, and the output value of the second sensor 42 is zero.

In this case, the controller 110 moves the forward movement rail 11 forward, and at the moment when the output value of the first sensor 41 output by the first sensing unit 130 changes from 0 to 1, The moving rail 11 can be stopped and the front moving rail 11 can be positioned at the rear single lane home position. If necessary, the controller 110 may further move the front moving rail 11 forward and / or backward to position the rear moving rail 11 in the rear single lane home position.

The control unit 110 controls the rear moving rails 21 to move forward when the output value of the third sensor 43 output from the second sensing unit 120 is changed from 0 to 1 while the rear moving rail 21 is moved forward Can be stopped and the rear moving rail 21 can be positioned at the rear single lane home position. If necessary, the controller 110 may further move the rearward movement rail 21 forward and / or backward to position the rearward movement rail 21 in the rear single lane home position.

Hereinafter, for convenience of explanation, it is assumed that the state shown in Fig. 3 is the rear single rail home position.

4, the front single-lane home position is a state in which the front moving rail 11 and the rear moving rail 21 are positioned adjacent to the rear fixed rail, specifically, the front moving rail 11, Is positioned adjacent to the front end of the second rear dog 32 and the rearward movement rail 21 is positioned adjacent to the front end of the first rear dog 34. [ 4, the output values of the first sensor 41, the third sensor 43, and the fourth sensor 44 become zero, and the output value of the second sensor 42 becomes one.

In the normal situation, the front moving rail 11 can not pass over the second rear dog 32 and approach the rear fixed rail 20. [ The controller 110 moves the forward movement rail 11 backward and at the moment when the output value of the first sensor 41 output by the first sensing unit 130 changes from 0 to 1, The forward movement rail 11 is moved forward by a predetermined distance or the forward movement rail 11 is stopped at the moment when the output value of the first sensor 41 is switched from 1 to 0 to move the forward movement rail 11 forward The rail 11 can be positioned at the front single lane home position.

The control unit 110 moves the front moving rail 11 forward and outputs the front moving rail 11 while the front moving rail 11 is positioned on the second rear dog 32 in a special situation The forward movement rail 11 can be stopped and the forward movement rail 11 can be positioned at the front single lane home position at the moment when the output value of the first sensor 41 is switched from 1 to 0. If necessary, the controller 110 may further move the front moving rail 11 forward and / or backward to position the rear moving rail 11 in the rear single lane home position.

Further, the rear moving rail 21 can not pass the first rear dog 34 and can not approach the rear fixing rail 20. The controller 110 moves the rear moving rail 21 to the rear and moves the rear moving rail 21 at a moment when the output value of the third sensor 43 output from the second sensing unit 120 is changed from 0 to 1 The rear moving rail 21 is moved forward by a predetermined distance or the rear moving rail 21 is stopped at the moment when the output value of the third sensor 43 is switched from 1 to 0 to move the rear moving rail 21 backward The rail 21 can be positioned at the front single-lane home position.

When the rear moving rail 21 is positioned on the first rear dog 34 in a special situation, the control unit 110 moves the rear moving rail 21 forward and outputs it to the second sensing unit 120 The rear moving rail 21 can be stopped and the rear moving rail 21 can be positioned at the front single lane home position at the moment when the output value of the third sensor 43 is switched from 1 to 0. If necessary, the controller 110 may further move the rearward movement rail 21 forward and / or backward to position the rearward movement rail 21 in the rear single lane home position.

4, the single lane home position is such that the forward travel rail 11 is located above the second rear dog 32 and the rear travel rail 21 is located above the first rear dog 34 Can be set. In this case, the output values of the first sensor 41, the second sensor 42, and the third sensor 43 are 1, and the output value of the fourth sensor 44 becomes zero.

In this case, the control unit 110 moves the forward movement rail 11 backward, and at the moment when the output value of the first sensor 41 output by the first sensing unit 130 changes from 0 to 1, The moving rail 11 can be stopped and the front moving rail 11 can be positioned at the front single lane home position. If necessary, the controller 110 may further move the front moving rail 11 forward and / or backward to position the front moving rail 11 in the front single lane home position.

The controller 110 controls the rear moving rails 21 to move backward at the moment when the output value of the third sensor 43 output from the second sensing unit 120 is changed from 0 to 1 while the rear moving rail 21 is moved backward, The rear moving rail 21 can be positioned at the front single lane home position. If necessary, the controller 110 may further move the rearward movement rail 21 forward and / or backward to position the rearward movement rail 21 in the front single lane home position.

The control unit 110 includes a first sensor 41, a second sensor 42, a third sensor 43, and a fourth sensor 44, which are output by the first sensing unit 130 and the second sensing unit 120, The forward movement rail 11 and the rearward movement rail 21 can be moved by selecting the most suitable home position among the above three home positions.

Hereinafter, for convenience of explanation, it is assumed that the state shown in FIG. 4 is assumed as the forward single rail home position.

On the other hand, in the conveyor 1 according to the embodiment of the present invention, four sensors are outputted as 1 or 0, so that there are 16 cases in which detection is possible.

Table 1 below shows all the cases in which the output values of the first sensor 41, the second sensor 42, the third sensor 43 and the fourth sensor 44 are distinguished.

The first sensor The second sensor Third sensor Fourth sensor Remarks CASE 1 0 One 0 One CASE 2 0 0 0 0 CASE 3 0 One 0 0 CASE 4 0 One One 0 CASE 5 One One One 0 CASE 6 One One 0 0 CASE 7 0 0 0 One CASE 8 One 0 0 One CASE 9 One 0 One One CASE 10 0 0 One One CASE 11 One 0 One 0 CASE 12 One 0 0 0 CASE 13 0 0 One 0 CASE 14 One One One One Can not occur CASE 15 One One 0 One Can not occur CASE 16 One 0 One One Can not occur

However, CASE 14 to CASE 16 are cases in which the forward movement rail 11 is located behind the rearward movement rail 21 and can not be generated in the conveyor 1 according to the embodiment of the present invention.

Therefore, the case of CASE 1 to CASE 13 in Table 1 will be described below.

5 is a view schematically showing a state in which the output values of the first sensor and the third sensor of the conveyor according to the embodiment of the present invention are 0 and the output values of the second sensor and the fourth sensor are 1, respectively.

5 shows a representative example of CASE 1 in which the front moving rail 11 and the rear moving rail 21 are both positioned on the first linear dog 35 and the second linear dog 36 to be.

CASE 1 is generated when the forward movement rail 11 and the rearward movement rail 21 are stopped by a trouble or the like while moving to the dual lane home position shown in FIG. 2, or when the forward movement rail 11 and the rearward movement rail 21 are stopped And the like.

Therefore, when initializing the forward movement rail 11 and the rearward movement rail 21 in the CASE 1 to the home position, it is preferable to select the dual lane home position as the home position.

Accordingly, when the first sensing unit 130 and the second sensing unit 120 detect the state of CASE 1, the control unit 110 controls the forward movement rail 11 and the forward movement rail 11 in the dual lane home position shown in FIG. And controls the movement of the rear moving rail 21.

CASE 1 is a case where the forward movement rail 11 is on the first linear dog 35 and the rear movement rail 21 is on the second linear dog 36. Therefore, Is moved adjacent to the front end of the first linear dog (35), and the rear moving rail (21) is moved adjacent to the rear end of the second linear dog (36). The detailed description thereof has been described above with reference to FIG. 2, and therefore will not be described.

The control unit 110 moves the forward movement rail 11 and the rear movement rail 21 at the same time because the movement directions of the forward movement rail 11 and the rear movement rail 21 are opposite to each other and there is no possibility of collision between them, .

6 is a view schematically showing a state in which the output values of the first sensor, the second sensor, the third sensor and the fourth sensor of the conveyor according to the embodiment of the present invention are zero.

6 shows a representative example of CASE 2 in which the front moving rail 11 is located between the first linear dog 35 and the second front dog 33 and the rear moving rail 21 is located between the first linear dog 35 and the second front dog 33, And is positioned between the second linear dog 36 and the second rear dog 32.

CASE 2 can be generated when the forward movement rail 11 and the rearward movement rail 21 are positioned at the dual lane home position shown in FIG. 2, or when the forward movement rail 11 and the rearward movement rail 21 stop due to trouble during use in the dual lane mode.

Therefore, in CASE 2, when initializing the forward movement rail 11 and the rearward movement rail 21 to the home position, it is preferable to select the dual lane home position as the home position.

Therefore, when the situation of the case 2 is detected by the first sensing unit 130 and the second sensing unit 120, the controller 110 controls the forward movement rail 11 and the forward movement rail 11 in the dual lane home position shown in FIG. And controls the movement of the rear moving rail 21.

CASE 2 is the case where the forward travel rail 11 is not on the first linear dog 35 and the rear travel rail 21 is not on the second linear dog 36. Therefore, 11 are moved adjacent to the front end of the first linear dog 35 and the rear moving rail 21 is moved adjacent to the rear end of the second linear dog 36. [ The detailed description thereof has been described above with reference to FIG. 2, and therefore will not be described.

The control unit 110 moves the forward movement rail 11 and the rear movement rail 21 simultaneously because the movement directions of the forward movement rail 11 and the rear movement rail 21 are opposite to each other and there is no possibility of collision with each other, .

7 is a view schematically showing a state in which the output value of the second sensor of the conveyor according to the embodiment of the present invention is 1 and the output values of the first sensor, the third sensor and the fourth sensor are zero.

7 shows a representative example of the CASE 3 in which the front moving rail 11 and the rear moving rail 21 are positioned in front of the second rear dog 32 and the first linear dog 35, It is located above.

CASE 3 can be generated when the forward movement rail 11 and the rearward movement rail 21 are stopped by a trouble or the like during use in the forward single lane mode or when the forward movement rail 11 and the rearward movement rail 21 are stopped by a trouble or the like while moving to the forward single lane home position .

Therefore, when CASE 3 initializes the forward movement rail 11 and the rearward movement rail 21 to the home position, it is preferable to select the front single-lane home position as the home position.

Therefore, when the situation of CASE 3 is detected by the first sensing unit 130 and the second sensing unit 120, the control unit 110 controls the forward movement rail 11 to move to the forward single lane home position shown in FIG. And the rear moving rail 21 are moved.

That is, the control unit 110 moves the front moving rail 11 rearward to be adjacent to the front end of the second rear dog 32 and moves the rear moving rail 21 rearward to move the first rear dog 34 ) Adjacent to the front end. A detailed description thereof has been given above with reference to FIG.

In case of CASE 3, since the moving directions of the forward moving rail 11 and the rear moving rail 21 are the same, both the forward moving rail 11 and the rear moving rail 21 may collide with each other . Accordingly, the controller 110 may move the rearward movement rail 21 to the front single-lane home position, and then move the forward movement rail 11 to the forward single-lane home position.

Or the control unit 110 moves the rearward movement rail 11 to the dual lane home position and then moves the rearward movement rail 21 to the dual lane home position and again moves the rearward movement rail 21 to the front single lane home position , And then the control for moving the forward moving rail 11 to the forward single lane home position can be performed.

8 is a view schematically showing a state in which the output values of the first sensor and the fourth sensor of the conveyor according to the embodiment of the present invention are 0 and the output values of the second sensor and the third sensor are 1, respectively.

8 shows a representative example of CASE 4 in which the front travel rail 11 is located in front of the second rear dog 32 and is located above the first linear dog 35 and is located on the rear travel rail 21 are positioned on the first rear dog 34. [

CASE 4 can be generated when the forward movement rail 11 and the rearward movement rail 21 are stopped by a trouble or the like during use in the forward single lane mode or when they are stopped by a trouble or the like while moving to the forward single lane home position .

Therefore, when CASE 4 initializes the forward movement rail 11 and the rearward movement rail 21 to the home position, it is preferable to select the front single-lane home position as the home position.

Therefore, when the state of CASE 4 is detected by the first sensing unit 130 and the second sensing unit 120, the controller 110 controls the forward movement rail 11 to move to the forward single lane home position shown in FIG. And the rear moving rail 21 are moved.

CASE 4 is a special situation in which the rearward movement rail 21 is located on the first rear dog 34 and the control unit 110 moves the frontward movement rail 11 rearward to the front end of the second rear dog 32 And the rear moving rail 21 is moved forward to be positioned adjacent to the front end of the first rear dog 34. [ A detailed description thereof has been given above with reference to FIG.

In the case of CASE 4, since the moving directions of the forward moving rail 11 and the rear moving rail 21 are close to each other and both are located adjacent to each other, when the both are simultaneously controlled, the forward moving rail 11 and the rear moving A collision of the rails 21 may occur. Accordingly, the controller 110 may move the rearward movement rail 21 to the front single-lane home position, and then move the forward movement rail 11 to the forward single-lane home position.

Or the control unit 110 moves the rearward movement rail 11 to the dual lane home position and then moves the rearward movement rail 21 to the dual lane home position and again moves the rearward movement rail 21 to the front single lane home position , And then the control for moving the forward moving rail 11 to the forward single lane home position can be performed.

9 is a view schematically showing a state in which the output value of the first sensor, the second sensor and the third sensor of the conveyor according to the embodiment of the present invention is 1 and the output value of the fourth sensor is 0. FIG.

9 shows a representative example of CASE 5 in which the front travel rail 11 is located above the second rear dog 32 and the rear travel rail 21 is located above the first rear dog 34 State.

CASE 5 can be generated when the forward movement rail 11 and the rearward movement rail 21 stop due to a trouble or the like while moving to the front single lane home position.

Therefore, when CASE 5 initializes the forward movement rail 11 and the rearward movement rail 21 to the home position, it is preferable to select the front single-lane home position as the home position.

Therefore, when the CASE 5 is detected by the first sensing unit 130 and the second sensing unit 120, the controller 110 controls the forward movement rail 11 to move to the forward single lane home position shown in FIG. And the rear moving rail 21 are moved.

CASE 5 is a special situation in which the rearward movement rail 21 is positioned above the first rear dog 34 and the frontward movement rail 11 is located above the second rear dog 32. The control unit 110 controls the forward movement rail 11 Is positioned to be adjacent to the front end of the second rear dog 32 and the rear moving rail 21 is moved forward to be positioned adjacent to the front end of the first rear dog 34. [ A detailed description thereof has been given above with reference to FIG.

In the case of CASE 5, since the forward movement rails 11 and the rearward movement rails 21 are moved in the same direction but both are located adjacent to each other, when both are controlled simultaneously, the forward movement rails 11 and the rear movement rails 21 21 may occur.

The control unit 110 moves the forward movement rail 11 forward by a predetermined distance avoiding the collision of the forward movement rail 11 during the movement of the rear movement rail 21, And the rear moving rail 21 can be moved to the front single lane home position.

Or the control unit 110 moves the rearward movement rail 11 to the dual lane home position and then moves the rearward movement rail 21 to the dual lane home position and again moves the rearward movement rail 21 to the front single lane home position , And then the control for moving the forward moving rail 11 to the forward single lane home position can be performed.

10 is a view schematically showing a state in which the output values of the first sensor and the second sensor of the conveyor according to the embodiment of the present invention are 1 and the output values of the third sensor and the fourth sensor are 0, respectively.

10 shows a representative example of CASE 6 in which the forward travel rail 11 is located above the second rear dog 32 and the rear travel rail 21 is located adjacent to the first rear dog 34 Respectively.

CASE 6 can also be generated when the forward movement rail 11 and the rearward movement rail 21 are stopped by a trouble or the like while moving to the front single lane home position.

Therefore, when CASE 6 initializes the forward movement rail 11 and the rearward movement rail 21 to the home position, the front single-lane home position can be selected as the home position.

Therefore, when the situation of the case 6 is detected by the first sensing unit 130 and the second sensing unit 120, the controller 110 controls the forward movement rail 11 to move to the forward single lane home position shown in FIG. And the rear moving rail 21 can be controlled.

CASE 6 is a special situation in which the forward travel rail 11 is located on the second rear dog 32 and the control unit 110 moves the forward travel rail 11 forward to the front end of the second rear dog 32 And the rear moving rail 21 can be moved rearward and positioned adjacent to the front end of the first rear dog 34. [ A detailed description thereof has been given above with reference to FIG.

In this case, since the moving directions of the forward moving rail 11 and the rear moving rail 21 are opposite to each other, it is possible to control the forward moving rail 11 and the rear moving rail 21 to move simultaneously. However, since both are located adjacent to each other, it is also possible to control the forward movement rail 11 and the rearward movement rail 21 to move to the forward single lane home position after the forward movement rail 11 is moved forward by a predetermined distance.

Or the control unit 110 moves the rearward movement rail 11 to the dual lane home position and then moves the rearward movement rail 21 to the dual lane home position and again moves the rearward movement rail 21 to the front single lane home position , And then the control for moving the forward moving rail 11 to the forward single lane home position can be performed.

On the other hand, when the rear moving rail 21 moves beyond the first rear dog 34 due to a shock or the like during movement to the front single lane home position, the same sensor result combination as CASE 6 is output.

10, the rearward movement rail 21 is mistakenly positioned in front of the first rearward dog 34, and when the control unit 110 moves the rearward movement rail 21 rearward as described above, If the control is performed, the equipment will be damaged.

Accordingly, in order to prevent such a problem, the control unit 110 moves the forward moving rail 11 to the dual lane home position and then moves the rear moving rail 21 It is possible to control to move to the dual lane home position. Alternatively, the control unit 110 may perform control to move the forward movement rail 11 and the rear movement rail 21 sequentially to the dual rail home position, and then move the forward movement rail 11 and the rear movement rail 21 to the forward single lane home position.

When two situations are possible, such as CASE 6, a possible situation is displayed through the display unit 140. After the operator visually confirms the condition of the conveyor 1, the operator selects one of the two situations through the input unit 150 The control unit 110 can select a home position suitable for the input state.

11 is a view schematically showing a state in which the output value of the fourth sensor of the conveyor according to the embodiment of the present invention is 1 and the output values of the first sensor, the second sensor and the third sensor are zero.

11 shows a representative example of the CASE 7 in which the front moving rail 11 and the rear moving rail 21 are positioned behind the second front dog 33 and the second linear dog 36 is positioned behind the second front dog 33. [ It is located above.

The CASE 7 can be generated when the forward movement rail 11 and the rearward movement rail 21 are stopped by a trouble or the like during use in the rear single-lane mode or when they are stopped by a trouble or the like while moving to the backward single lane home position .

Therefore, when CASE 7 initializes the forward movement rail 11 and the rearward movement rail 21 to the home position, it is preferable to select the backward single lane home position as the home position.

Therefore, when the state of the case 7 is detected by the first sensing unit 130 and the second sensing unit 120, the control unit 110 controls the forward movement rail 11 to move to the backward single lane home position shown in FIG. And the rear moving rail 21 are moved.

That is, the control unit 110 moves the front moving rail 11 forward and moves the rear moving rail 21 forward so as to be adjacent to the front end of the first front dog 31, ) Adjacent to the front end. The detailed description thereof has been described above with reference to FIG.

In case of CASE 7, since the moving directions of the forward moving rail 11 and the rear moving rail 21 are the same, when the both are simultaneously controlled, collision between the forward moving rail 11 and the rear moving rail 21 may occur . Accordingly, the controller 110 may move the rearward movement rail 11 to the rear single-lane home position, and then move the rearward movement rail 21 to the rear single-lane home position.

Or the control unit 110 moves the rear moving rail 21 to the dual lane home position and then moves the forward moving rail 11 to the dual lane home position and again moves the forward moving rail 11 to the rear single lane home position And then moves the forward moving rail 11 to the backward single lane home position.

12 is a view schematically showing a state in which the output values of the first sensor and the fourth sensor of the conveyor according to the embodiment of the present invention are 1 and the output values of the second sensor and the third sensor are 0, respectively.

12 shows a representative example of CASE 8 in which the front moving rail 11 is positioned on the first front dog 31 and the rear moving rail 21 is positioned on the rear side of the second front dog 33 And is positioned above the second linear dog 36. As shown in Fig.

The CASE 8 can be generated when the forward movement rail 11 and the rearward movement rail 21 are stopped by a trouble or the like during use in the rear single lane mode or when they are stopped by a trouble or the like while moving to the backward single lane home position .

Therefore, when CASE 8 initializes the forward movement rail 11 and the rearward movement rail 21 to the home position, it is preferable to select the backward single lane home position as the home position.

Therefore, when the state of the CASE 8 is detected by the first sensing unit 130 and the second sensing unit 120, the controller 110 controls the forward movement rail 11 to the backward single lane home position shown in FIG. And the rear moving rail 21 are moved.

CASE 8 is a special situation in which the front moving rail 11 is located on the first front dog 31 and the control unit 110 moves the front moving rail 11 rearward to the rear end of the first front dog 31 And the rear moving rail 21 is moved forward to be positioned adjacent to the rear end of the second front dog 33. [ The detailed description thereof has been described above with reference to FIG.

In the case of CASE 8, since the moving directions of the forward moving rail 11 and the rear moving rail 21 are close to each other and both are located adjacent to each other, in the case of controlling both the front moving rails 11 and the rear moving rails 21, A collision of the rails 21 may occur. Accordingly, the controller 110 may move the rearward movement rail 11 to the rear single-lane home position, and then move the rearward movement rail 21 to the rear single-lane home position.

The control unit 110 moves the rear moving rail 11 to the dual lane home position and then moves the forward moving rail 21 to the dual lane home position and moves the forward moving rail 21 to the rear single lane home position And then moves the rear moving rail 11 to the rear single lane home position.

13 is a view schematically showing a state in which the output value of the second sensor of the conveyor according to the embodiment of the present invention is 0 and the output values of the first sensor, the third sensor and the fourth sensor are 1. FIG.

13 shows a representative example of CASE 9 in which the front moving rail 11 is located on the first front dog 31 and the rear moving rail 21 is located on the second front dog 33 State.

CASE 9 can be generated when the forward movement rail 11 and the rearward movement rail 21 stop due to a trouble or the like while moving to the rear single lane home position.

Therefore, when CASE 9 initializes the forward movement rail 11 and the rearward movement rail 21 to the home position, it is preferable to select the backward single lane home position as the home position.

Therefore, when the CASE 9 is detected by the first sensing unit 130 and the second sensing unit 120, the controller 110 controls the forward movement rail 11 to move to the rear single lane home position shown in FIG. And the rear moving rail 21 are moved.

CASE 9 is a special situation in which the forward travel rail 11 is located on the first front dog 31 and the rear travel rail 21 is located on the second front dog 33. The control unit 110 controls the forward travel rails 11 Is moved rearward to be adjacent to the rear end of the first front dog 31 and the rear moving rail 21 is moved rearward to be positioned adjacent to the rear end of the second front dog 33. [ The detailed description thereof has been described above with reference to FIG.

In the case of CASE 9, since the forward movement rail 11 and the rearward movement rail 21 are moved in the same direction but both are located adjacent to each other, when controlling both the frontward movement rail 11 and the rearward movement rail 21 21 may occur.

The control unit 110 moves the rearward movement rail 21 rearward by a predetermined distance avoiding the collision of the rearward movement rail 21 while the forward movement rail 11 moves, And the rear moving rail 21 are moved to the rear single lane home position.

Or the control unit 110 moves the rear moving rail 21 to the dual lane home position and then moves the forward moving rail 11 to the dual lane home position and again moves the forward moving rail 11 to the rear single lane home position And then moves the rearward movement rail 21 to the rear single-lane home position.

FIG. 14 is a view schematically showing a state in which the output values of the first sensor and the second sensor of the conveyor according to the embodiment of the present invention are 0, and the output values of the third sensor and the fourth sensor are 1

14 shows a representative example of the CASE 10 in which the front moving rail 11 is located adjacent to the first front dog 31 and the rear moving rail 21 is positioned adjacent to the second front dog 33, It is located above.

CASE 10 can also be generated when the forward movement rail 11 and the rear movement rail 21 are stopped by a trouble or the like while moving to the rear single lane home position.

Therefore, when CASE 10 initializes the forward movement rail 11 and the rearward movement rail 21 to the home position, the home position can be selected as the backward single lane home position.

Therefore, when the first sensing unit 130 and the second sensing unit 120 detect the state of the CASE 10, the controller 110 controls the forward movement rail 11 to move to the rear single-lane home position shown in FIG. And the rear moving rail 21 can be controlled.

CASE 10 is a special situation in which the rearward movement rail 21 is located on the second front dog 33. The control unit 110 moves the forward movement rail 11 forward and moves the rearward movement rail 11 forward So that the rear moving rail 21 can be moved rearward and positioned adjacent to the rear end of the second front dog 33. [ The detailed description thereof has been described above with reference to FIG.

In this case, since the moving directions of the forward moving rail 11 and the rear moving rail 21 are opposite to each other, it is possible to control the forward moving rail 11 and the rear moving rail 21 to move simultaneously. However, since both are located adjacent to each other, it is also possible to control the forward movement rail 11 and the rear movement rail 21 to move to the rear single lane home position after the rearward movement rail 21 is moved backward by a predetermined distance.

Or the control unit 110 moves the rear moving rail 21 to the dual lane home position and then moves the forward moving rail 11 to the dual lane home position and again moves the forward moving rail 11 to the rear single lane home position And then moves the rearward movement rail 21 to the rear single-lane home position.

On the other hand, when the forward moving rail 11 passes over the first front dog 31 due to an impact or the like during movement to the rear single lane home position, the same sensor result combination as CASE 10 is output.

14, the forward movement rail 11 is mistakenly positioned behind the first front dog 31, and the control unit 110 moves the forward movement rail 11 forward If the control is performed, the equipment will be damaged.

Accordingly, in order to prevent such a problem, the controller 110 moves the rear moving rail 21 to the dual lane home position in the case of CASE 10, and then moves the front moving rail 11 It is possible to control to move to the dual lane home position. Alternatively, the control unit 110 may perform control to sequentially move the rearward movement rail 21 and the forward movement rail 11 to the dual rail home position, and then move the rearward movement rail 21 and the forward movement rail 11 to the backward single lane home position

When two situations are possible, such as CASE 10, a possible situation is displayed through the display unit 140. After the operator visually confirms the condition of the conveyor 1, the operator selects one of the two situations through the input unit 150 The control unit 110 can select a home position suitable for the input state.

15 is a view schematically showing a state in which the output values of the first sensor and the third sensor of the conveyor according to the embodiment of the present invention are 1 and the output values of the second sensor and the fourth sensor are 0, respectively.

15 shows a representative example of CASE 11 in which the front moving rail 11 is located on the first front dog 31 and the rear moving rail 21 is located on the first rear dog 34 State.

CASE 11 can be generated when the forward movement rail 11 and the rear movement rail 21 are stopped by a trouble or the like while moving to the front single lane home position, the rear single lane home position, or the dual lane home position, It is difficult to determine the state of the conveyor 1.

Therefore, when CASE 11 initializes the forward movement rail 11 and the rearward movement rail 21 to the home position, any one of the forward single lane home position, the backward single lane home position, or the dual lane home position can be selected as the home position have.

Or the front moving rail 11 is moved to the rear single lane home position and the rear moving rail 21 is moved to the front single lane home position As shown in FIG. In this case, since the distance between the forward movement rail 11 and the rearward movement rail 21 is relatively wide, the forward movement rail 11 and the rear movement rail 21 can be controlled to move simultaneously.

16 is a view schematically showing a state in which the output value of the first sensor of the conveyor according to the embodiment of the present invention is 1 and the output values of the second sensor, the third sensor and the fourth sensor are zero.

16 shows a representative example of CASE 12 in which the forward travel rail 11 is located on the first front dog 31 and the rear travel rail 21 is located on the second linear dog 36 2 rear dogs 32, as shown in Fig.

The CASE 12 may also occur when the forward movement rail 11 and the rearward movement rail 21 are stopped by a trouble or the like while moving to the front single lane home position, the rear single lane home position, or the dual lane home position, It is difficult to determine the state of the conveyor 1.

Therefore, in CASE 12, when initializing the forward movement rail 11 and the rearward movement rail 21 to the home position, any one of the forward single lane home position, the rear single lane home position, or the dual lane home position can be selected as the home position have.

Or the front movable rail 11 is moved to the rear single lane home position and the rear movable rail 21 can be controlled to move to the front single lane home position.

Or the front moving rail 11 is moved to the rear single lane home position and the rear moving rail 21 can be controlled to move to the dual lane home position.

17 is a view schematically showing a state in which the output value of the third sensor of the conveyor according to the embodiment of the present invention is 1 and the output values of the first sensor, the second sensor and the fourth sensor are zero.

17 shows a representative example of the CASE 13 in which the front moving rail 11 is located between the first linear dog 35 and the second front dog 33 and the rear moving rail 21 is located between the first linear dog 35 and the second front dog 33, And is positioned above the first rear dog 34.

The CASE 13 may also occur when the forward movement rail 11 and the rearward movement rail 21 are stopped by a trouble or the like while moving to the front single-lane home position, the rear single-lane home position, or the dual lane home position, It is difficult to determine the state of the conveyor 1.

Therefore, in CASE 13, when the forward movement rail 11 and the rearward movement rail 21 are initialized to the home position, any one of the forward single lane home position, the rear single lane home position, or the dual lane home position can be selected as the home position have.

Or the front movable rail 11 is moved to the rear single lane home position and the rear movable rail 21 can be controlled to move to the front single lane home position.

Or the front moving rail 11 is moved to the dual lane home position and the rear moving rail 21 can be controlled to move to the front single lane home position.

When it is difficult to determine the state of the conveyor 1 before the stop by only the present positions of the forward movement rail 11 and the rear movement rail 21 as in CASE 11 to CASE 13, the control unit 110 controls the display unit 140 Displays the current position of the conveyor 1 and displays the home positions where the front and rear moving rails 11 and 21 can move to allow the user to select a specific home position through the input unit 150 Lt; / RTI >

As described above, the conveyor 1 according to the embodiment of the present invention provides three basic home positions of the dual lane home position, the front single lane home position, and the rear single lane home position.

The forward movement rail 11 is moved to the rear single lane home position and the rear movement rail 21 is moved to the forward single lane home position by applying three basic home positions, The rear moving rail 21 is moved to the front single lane home position and the front moving rail 11 is moved to the rear single lane home position while the rear moving rail 21 is moved to the dual lane groove And three additional home positions in a state of being moved to a position.

The first sensor 41 senses the first front dog 31 or the second rear dog 32 and the second sensor 42 senses the first linear dog 35. The first sensor 41 senses the first front dog 31 or the second rear dog 32, A third sensor 43 for detecting the position of the front moving rail 11 and sensing the first rear dog 34 or the second front dog 33 and a second sensor 38 for sensing the second linear dog 36 The fourth sensor 44 may be mounted on the rear moving rail 21 to detect the position of the rear moving rail 21. [

The positions of the front moving rail 11 and the rear moving rail 21 sensed through the output values of the first sensor 41, the second sensor 42, the third sensor 43 and the fourth sensor 44 The front moving rail 11 and the rear moving rail 21 can be moved to a home position suitable for the base.

That is, before the conveyor 1 is stopped, it is checked whether it is operating in the dual lane mode, the forward single lane mode, the backward single lane mode, or the home position, and the home position corresponding thereto The front moving rail 11 and the rear moving rail 21 can be selectively moved.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, You will understand. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive.

1: Conveyor 10: Front fixed rail
11: forward movement rail 20: rear fixed rail
21: rear moving rail 31: first front dog
32: second rear dog 33: second front dog
34: first rear dog 35: first linear dog
36: second linear dog 41: first sensor
42: second sensor 43: third sensor
44: fourth sensor

Claims (14)

Front fixed rail;
A rear fixed rail provided parallel to the front fixed rail;
A front movable rail movably disposed between the front fixed rail and the rear fixed rail in parallel with the front fixed rail;
A rear moving rail movably disposed between the front moving rail and the rear fixing rail in parallel with the rear fixing rail;
A sensing unit sensing a position of the front moving rail and the rear moving rail;
The sensing unit may select the home positions of the forward movement rail and the rear movement rail based on the positions of the forward movement rail and the rear movement rail and to move the forward movement rail and the rear movement rail to the selected home position And a control unit for moving the control unit,
Wherein,
A dual lane home position in which the front moving rail and the rear moving rail are located at a central portion between the front fixed rail and the rear fixed rail,
A rear single lane home position in which the forward movement rail and the rear movement rail are located adjacent to the front fixed rail,
And a front single lane home position in which the front moving rail and the rear moving rail are positioned adjacent to the rear fixed rail as the home position,
The sensing unit includes:
A first linear dog extending from the center portion toward the rear fixed rail;
A second linear dog extending from the central portion in the direction of the front fixed rail;
A first front dog disposed between the central portion and the front fixed rail for marking a forward limit position of the forward moving rail;
A second front dog disposed between the first front dog and the center portion and marking a forward limit position of the rear travel rail;
A first rearward dog provided between the central part and the rear fixed rail for marking a rear limit position of the rearward movement rail;
A second rear dog provided between the first rear dog and the center portion and marking a rear limit position of the forward travel rail;
A first sensor provided on the forward movement rail for sensing the first front dog or the second rear dog;
A second sensor provided on the forward moving rail for sensing the first linear dog;
A third sensor provided on the rear moving rail for sensing the second front dog or the first rear dog,
And a fourth sensor mounted on the rearward movement rail for sensing the second linear dog. The method according to claim 1,
When the sensing portion senses that the front moving rail is located between the front fixed rail from the central portion and the rear moving rail is located between the rear fixed rail and the central portion,
Wherein the controller selects the dual lane home position with the home position. The method according to claim 1,
When the sensing portion senses that the front moving rail and the rear moving rail are located between the front fixed rail and the central portion,
Wherein the control unit selects the rear single lane home position with the home position. The method according to claim 1,
When the sensing portion senses that the front moving rail and the rear moving rail are located between the rear portion fixed rail and the center portion,
Wherein the control unit selects the front single lane home position with the home position. delete delete delete delete delete delete delete delete delete delete

Images