JPH10120211A - Carry-out method of workpiece inspection device and carry-out mechanism thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To separate and carry out a workpiece in which an upper part bites a lower part surely by pressing the accumulated, thick, and sheetlike workpiece from above, then pulling it up by sucking an end part thereof, flowing gas into a clearance caused between a lower workpiece and it, and lifting the workpiece by separating them. SOLUTION: When a workpiece 1 which is a thick and sheetlike object is separated and conveyed in a workpiece detection device, its lowering is stopped at a place where a lower end of a pressing body 3 comes into contact with a workpiece 1 at an uppermost step due to the operation of an ascent and descent drive source 20. Moreover, at the same time, a link bar 24 presses and lowers an oscillation end part of a sucking body 2 to suck due to suction force of a pressure reduction nozzle 13 when an sucking pad 11 comes into contact with an end part of the workpiece 1 at the uppermost step. After that, the ascent and descent drive source 20 is operated reversely to pull up the oscillation end part of a suction main body 10, the workpiece 1 is bent by using a contact part with the pressing body 3 as a boundary, and gas is blown into a clearance between the workpieces 1 formed in this way from a gas jet part 4 to separate the workpieces 1 instantaneously.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an unloading method and a unloading mechanism for a work inspecting apparatus, and more particularly to a method for separating and unloading a work having a high degree of adhesion, which is a thick sheet and is superposed. And an unloading mechanism.

[0002]

2. Description of the Related Art There have conventionally been proposed many unloading mechanisms for separating and feeding sheet-like workpieces supplied one after another. One of them is the work unloading section (B ') shown in FIGS. Briefly, (a) shows that the adsorbent (2 ') is located just above the front end of the uppermost work (1') of the overlapping works (1 ') (1'). 50 ') is in contact with the front end portion. (b) is a state in which the adsorbent (2 ') is adsorbed on the front end portion of the work (1'). (c) is a state in which the adsorbent (2 ') slightly moves toward the rear end of the work (1') while adsorbing the front end of the work (1 ') and moves the moving roller (5).
The work (1 ′) is bent between the position (0 ′) and the suction position, and a gap is formed between the uppermost work (1 ′) and the next work (1 ′). (d), the moving roller (50 ') moves toward the rear end of the work (1') while holding the position where the work (1 ') has moved toward the rear end, and the gap between the upper and lower works ( 1 ') is in a state of being expanded throughout. In (e), when the moving roller (50 ') reaches the rear end of the work (1'), a gap is formed between the upper and lower works (1 '), and the two are completely separated. (f) is a state in which the suction body (2 ') is lifted with the front end portion of the work (1') sucked, and the upper feed roller (51 ') and the lower feed roller are moved.
(52 ') with the front end of the work (1') sandwiched,
The work (1 ') is carried out to the next step by the rotation of the upper feed roller (51').

[0003]

In this method, the uppermost work (1 ') is deflected to create a gap between the uppermost work (1') and the lower work (1 '). It is intended to eliminate the negative pressure generated between the lower work (1 ') and the lower work (1') when it is carried out, but it is formed by punching out a thick sheet-like work (1 '), for example, a paper box. In the case of a blank, the upper and lower workpieces (1 ') over the entire circumference of the workpiece (1')
Since they are engaged with each other, it is almost impossible to bend only the uppermost work (1 '). In particular, the work (1 ')
If there are notches or folds in the edges, or if the edges are not just rectangular but are cut intricately along the entire circumference, it is almost impossible to deal with the above method It is.

Therefore, a work (1) having a complicated shape formed by stamping out a paper box, formed of a thick sheet, and having upper and lower works (1 ') engaged with each other over the entire circumference. ') An effective means of separation and unloading was required. The present invention has been made in view of such a demand.

[0005]

According to a first aspect of the present invention, there is provided a method for carrying out a work inspecting apparatus (A), comprising the steps of: "pressing or pressing a laminated thick sheet-like work (1) from above; At the same time, the end of the work (1) is suctioned, and then the end is pulled up, and a portion from the pressed portion to the suction portion is bent to form a gap between the work (1) and the lower work (1). (1) and the work below
The gas (1) is introduced into the space (1) to separate it, and then the adsorbed work (1) is lifted up and carried out to the next process. "

A work inspecting apparatus (A) according to claim 2
The method of unloading is as follows: `` After sucking the end of the stacked thick sheet-like work (1) or simultaneously with suction, press the work (1) from above, and then suck the work (1) The gap between the lower part and the work (1) is formed by bending the part from the pressing part to the suction part by raising the end part, and the work (1) and the lower part are sucked by blowing gas to the gap. A gas is introduced into and separated from the work (1) to separate it, and then the adsorbed work (1) is lifted and carried out to the next process. "

[0007] According to this, the work (1) is held down from above, and the end of the work (1) is sucked and pulled up, or the work (1) is sucked and the work (1) is lifted. Pressing from above, pulling up the end in that state, the part from the pressed part to the suction part is bent and the lower work (1)
A gap is created between By blowing gas into this gap, it is possible to separate the upper and lower works (1) that have been firmly engaged by the pressure. The sucked work (1) is lifted by wind pressure by being separated, and is carried out to the next process in that state.

A work inspection apparatus (A) according to claim 3
The unloading mechanism implements the unloading method described above. “The pressing body that presses the stacked thick sheet-like work (1) from above”
(3), an adsorbent (2) that lifts the end after adsorbing the end of the work (1), and a curved portion formed from the pressed portion to the adsorbed portion by lifting the adsorbent (2). Work below
(1) A gas jet that blows gas into the gap created between
(4), an elevating unit (5) that lifts the pressing body (3) and the adsorbing body (2) together with the sucked work (1), and a transport unit that unloads the lifted work (1) to the next process And (6) ".

[0009]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. The work inspection apparatus (A) of the present invention is roughly divided into a work unloading section (B), a work inspection section (C), a sorting section (D), and a non-defective product storage section.
(E), a defective product storage section (F) and a frame (G).

The work unloading section (B) is further divided into an elevating section (5) and a transport section (6). As shown in FIG. 2, the elevating unit (5) has a linear rail (18) installed vertically on a base plate (28) attached to a mounting plate (70), and a lower linear rail attached to the linear rail (18). A guide (16) and an upper linear guide (17) are mounted to be able to move up and down. A pressing body (3) is fixed to the lower linear guide (16) via a spacer (19), and its lower end is formed in an arc-shaped cross section.

An adsorbent (2) is provided below the pressing body (3) with a swing shaft (1).
It is pivotally mounted at 4). The adsorbent (2) is shown in FIG.
As can be seen from 1, 12, a suction body (10) having a forked leg (10a) and a suction pad (11) attached to the lower surface of the swinging end of the suction body (10) are provided. Yes, bifurcated legs (1
0a) is fixed to a swing shaft (14) rotatably inserted into the pressing body (3) via a bearing. Also, the adsorbent
At the swinging end of (2), a suction hole (12) is formed in parallel with the suction surface of the suction pad (11), and is formed on the upper surface of the suction body (10). It communicates with the reduced pressure nozzle (13). Support shaft from the side of the suction body (10)
(15) is protruded, and a link bar (24) is rotatably mounted. For the suction pad (11), a soft material such as rubber or sponge is used in order to enhance the adhesion to the work (1).

On the other hand, a driving source mounting portion (25) is fixed to the upper linear guide (17), and the upper end of the link rod (24) is connected to the driving source mounting portion (25) via a link shaft (26). Is mounted to be rotatable. An elevating drive source (20) formed of, for example, a cylinder is attached to the base plate (28), and its rod (21) is fixed to the drive source attachment portion (25). Slide shaft from drive source mounting part (25)
(22) is vertically suspended, is slidably inserted into a slide hole (19a) formed in the spacer (19), and is disposed between the drive source mounting portion (25) and the lower linear guide (16). A spring (23) loosely fitted to the slide shaft (22) is provided to apply a resilient force in a direction to separate the drive source mounting portion (25) and the spacer (19) from each other. At the lower end of the slide shaft (22), a large-diameter stopper (27) is provided.

A mounting plate (30) is suspended from an end of the base plate (28), and compressed air flows toward the vicinity of the uppermost stage of the work (1) (1) loaded on the lift table (31). And a sensor (29) for detecting the uppermost position of the work (1).

The transport section (6) is installed on the downstream side near the elevating section (5), and a pressure reducing box (71) having a lower surface opening is installed on a side surface of the mounting plate (70). The ceiling of the decompression box (71) is provided with a decompression port (72).
The inside of (71) is always kept under reduced pressure. Mounting plate
On the upper part of (70), for example, a rotary drive source (65) such as a motor
Is installed, and a transport pulley is installed in the decompression box (71).
(61) (62) and a drive pulley (63) are provided, a drive gear (67) attached to a drive shaft of a rotary drive source (65), and a shaft (69) of the drive pulley (63). The transmission gear (68) is connected to a driven gear (68) by a transmission belt (66), and transmits the rotational force of the rotary drive source (65) to the drive pulley (63).

The transport pulleys (61) and (62) are located below the drive pulley (63) and are rotatably connected to a pulley mounting shaft (73) via bearings. A plurality of semicircular grooves (59) are formed around the transport pulleys (61) and (62) and the drive pulley (63), and the transport pulleys (61) ( A drive belt (64) is hung between the drive pulley (62) and the drive pulley (63), and a transfer belt (60) is provided between the transfer pulleys (61) and (62) in the remaining semicircular groove (59). Suspended. The transport belt (60) traveling between the transport pulleys (61) and (62) and the drive belt (64) slightly protrude from the lower surface of the opening of the decompression box (71), and
The vehicle travels while adsorbing (1).

A work is provided below the lifting / lowering section (5) and the transport section (6).
A lift table (31) for stacking (1) and intermittently lifting the work (1) in accordance with the unloading of the work (1) is provided, and the rear end of the work (1) is a front end guide plate (32). Thus, both sides of the work (1) are guided by the side guide plates (33).

A number of upstream conveying rollers (38) are provided downstream of the work unloading section (B), and an upstream feed belt is provided.
In (37), the work (1) is driven to move to the downstream side. A front contact stopper (36) is disposed at the downstream end of the upstream transport roller section (38) so as to be able to be turned upside down, and abuts against the front end of the work (1) that has been sent to perform positioning. It has become. The inspection zone (42) is located near the downstream side of the front stopper (36), and the illumination unit (41) and the camera (40) are installed directly above the inspection zone (42). Make up. The camera (40) is the camera lift (3
It is attached to the frame (G) so that it can be raised and lowered according to 9). A downstream transport roller section (44) is provided downstream of the inspection zone (42), and the downstream transport roller section (44) has a downstream feed belt.
(43) is suspended to transport the work (1) further downstream.

A sorting section (D) is provided downstream of the work inspection section (C), and a suction box (45) having a lower surface opening is provided. A ceiling suction belt (46) extends along the lower surface of the opening. It is designed to run. A defective product storage section (F) is provided below the ceiling suction belt (46) to receive the defective product (1b). A jogger (47) is provided at the exit of the sorting unit (D), and the non-defective product (1a) is sent to the non-defective product storage unit (E) via the jogger (47). A non-defective product lift section (48) is installed in the non-defective product storage section (E), and the non-defective product (1a) is loaded and intermittently descends.

The work (1) to be applied to the work inspection apparatus (A) is not limited in its shape and thickness. However, as in the case of a paper box blank, a large number of thick papers are stacked once. This is particularly effective for separating a product in which the formed laminate has a complicated shape and the upper and lower works (1) are engaged with each other over the entire circumference. FIG. 14 shows an example of the work (1), which is a blank for a paper box having a complicated shape in which cuts (7) and folds (8) are formed.

Next, the operation of the workpiece inspection device (A) will be described. The work (1) is loaded on the lift base (31), the lift base (31) is raised, and stopped at a position where the upper end of the work (1) is detected by the sensor (29). At this time, the lifting drive source (20)
Rod (21) is retracted into the lifting drive source (20), so that the lower linear guide (16) and the upper linear guide
(17) is raised above the linear rail (18),
The lower end of the pressing body (3) and the suction pad (11) of the suction body (2) are kept apart from the uppermost work (1). << Figure 3
reference"

The uppermost work (1) detected by the sensor (29)
Is stopped at the position to be sucked, and then
(20) is operated, and the rod (21) projects from the lifting drive source (20) to lower the upper linear guide (17) and the lower linear guide (16) along the linear rail (18). When the lower end of the pressing body (3) contacts the uppermost work (1), the lowering of the pressing body (3) stops. The contact position of the pressing body (3) with the work (1) is not particularly limited, but in this embodiment, the top of the first fold (8) as viewed from the suction end side of the work (1) is selected. Have been. << See Fig. 4 >>

Since the rod (21) continues to protrude after the pressing body (3) stops, the upper linear guide (17) further descends together with the rod (21). As a result, the slide shaft (22) is pushed down against the elastic force of the spring (23), and the stopper (27) moves away from the lower surface of the spacer (19). At the same time, the link rod (24) pivotally attached to the drive source mounting part (25) is
The swinging end of the suction body (2) is pushed down via (15), and the suction pad (11) contacts the end of the uppermost work (1). The position is shown by a broken line in FIG. 14, and the position is a suction position by the suction hole (12). Since the suction hole (12) is always kept in a decompressed state by the decompression nozzle (13), when the suction pad (11) comes into contact with or comes close to the work (1), the suction force of the suction pad (11) is used.
Adsorb to the end of (1). << See Fig. 5 >>

The suction hole (12) of the suction pad (11) is the work (1).
When the rod (2) is
Retract the upper linear guide (1) into the vertical drive source (20).
7) is raised. As a result, the drive source mounting portion (25) and the drive source mounting portion (25) attached to the upper linear guide (17)
The link rod (24) pivotally connected to is pulled up, and the swinging end of the suction body (10) is pulled up. On the other hand, pressing body (3)
Remains in contact with the work (1), and as a result, the work (1) is bent at the contact portion with the pressing body (3), and the end of the uppermost work (1) is attached to the suction side end of the work (1). A gap is formed between the work (1). << See Fig. 6 >>

At the place where the gap is formed, the gas ejection part (4)
Is operated to blow gas into the gap. The blowing gas is usually compressed air, but it is more preferable that the blowing air is ionized for removing static electricity. Further, the blown gas may be continuously blown out from the gas blowout section (4). As a result, even if the compressed gas is bitten by punching between the uppermost work (1) and the work (1) immediately below the compressed gas, the compressed gas is broken and separated. Needless to say, the timing of separation is not constant depending on the biting strength, the pressing state of the pressing body (3) and other various factors. In this case, the compressed air blown into the gap due to the presence of the front end guide plate (32) and the side guide plate (33) does not escape outside, and the front end guide plate (32), the side guide plate (33),
The space between the upper and lower works (1) acts like a kind of air pocket, and causes the work (1) to be instantaneously separated.

During this time, the rod (21) continues to be drawn into the lifting drive source (20), but the spacer (23)
(19) remains pressed down, and the drive source
Only the workpiece (25) rises and bends at the contact position of the workpiece (1) with the pressing body (3) as described above, but the stopper (27) is The lifting of the spacer (19) is started at the place where it contacts the lower surface, and the drive source mounting part (25)
It is raised with. Then, the adsorbed work (1) is completely separated from the next work (1) by the pressure of the compressed air as described above, so that the work (1) floats without any resistance as the pressing body (3) rises. . Then, since the lower surface of the opening of the decompression box (71) of the conveyance section (6) is in a decompression state, the work (1) is moved from between the conveyance belt (60) and the drive belt (64) into the decompression box (71). With the flow of air being sucked into the vacuum belt (71),
(60) and the drive belt (64). Since the transport belt (60) and the drive belt (64) run at the same speed,
As soon as (1) comes into contact with the transport belt (60) and the drive belt (64), the work (1) is transported downstream. At this time,
The depressurizing nozzle (13) is released to the atmosphere and the suction state is released, so that the work (1) is not obstructed from being transported to the downstream side. << See Fig. 7 >>

The work (1) conveyed to the downstream side passes between the upstream conveying roller portions (38), and its front end abuts on a front contact stopper (36) rising at the downstream end thereof, thereby positioning the work (1). After that, the work (1) is transported further downstream by the fall of the front contact stopper (36) and the inspection zone
After passing through (42), the image of the surface recorded by the camera (40) at the time of passing is digitized and compared with the basic pattern. If the recorded digital pattern matches the basic pattern, the work (1) is determined to be non-defective, and if not, it is determined to be defective. The work (1) that has passed through the inspection zone (42) passes through the downstream transport roller section (44) and reaches the sorting section (D), where the suction box (45) sucks the upper surface of the work (1), It is transported downstream by the ceiling suction belt (46). If the work (1) is a non-defective product (1a), it passes through the sorting unit (D) as it is, enters the non-defective product storage unit (E) via the jogger (47), and is placed on the non-defective product lift table (48). You.

If the work (1) is determined to be defective (1b), it is forcibly dropped while traveling through the sorting section (D) and stored in the defective storage section (F). In this way, the works (1) of the work carrying-out section (B) are separated and carried out one by one, and the quality of the printing state on the surface is determined and sorted.

Although it has been described above that the pressing body (3) comes into contact with the work (1), it is not always necessary to make contact with the work (1). )
You only have to touch the tip of the Lift stand (31) or good lift stand
(48) is preferably moved up and down by the thickness of the work (1) every time the work (1) is carried out and carried in, but it is not always necessary to do so, and after a certain number of carry-outs and carry-ins are performed. The lift table (31) or the non-defective product lift table (48) may be moved up and down. In this case, as described above, the pressing body (3) stopped at the lowermost end may not contact the work (1).

The case where the pressing body (3) comes into contact with the work (1) before the adsorbing body (2) has been described in the embodiment, but is not limited to this. And the adsorbent (2) are simultaneously brought into contact with or close to the work (1) to adsorb the work (1) to the suction pad (11) of the adsorbent (2), and thereafter, the work (1)
At the same time, the swinging end of the adsorbent (2) is pulled up and the suction side end of the work (1) is bent to form a gap, and a compressed gas is blown into the gap to separate the upper and lower works (1). Thereafter, the suction body (2) and the pressing body (3) may be lifted together with the work (1), or the suction pad (2) of the suction body (2) may be reversed in the case shown in the above embodiment. 11) Work before pressing body (3)
(1) is brought into contact with or close to (1) to adsorb to the suction end of the work (1), and then, the pressing body (3) is brought into contact with or adsorbed to the work (1), and then the swing of the adsorbent (2) The gap may be formed between the upper and lower works (1) by raising the end.

[0030]

According to the present invention, the end of the work is sucked and pulled up while the work is pressed from above, or the work is pressed from above while the end of the work is sucked, and the end is pressed in this state. As a result, the portion from the pressing portion to the suction portion bends to form a gap between the workpiece and the lower workpiece, and the gas is blown into the gap to separate the upper and lower workpieces firmly engaged by the pressure. This has made it possible to easily and reliably separate individual workpieces, which were difficult to separate by the conventional method.

[Brief description of the drawings]

FIG. 1 is a schematic front view showing the entire apparatus of the present invention.

FIG. 2 is a perspective view of a main part of a work discharge section of the apparatus of the present invention.

FIG. 3 is a front view showing a state before a workpiece is separated in a workpiece discharge section of the apparatus of the present invention.

FIG. 4 is a front view showing a state in which a lower end of a pressing body is brought into contact with a work in a work discharge portion of the apparatus of the present invention;

FIG. 5 is a front view showing a state in which a lower end of a pressing body and a suction pad are brought into contact with a work in a work discharge portion of the apparatus of the present invention;

FIG. 6 is a front view showing a state in which the suction body is lifted while adsorbing the work to the suction pad while the lower end of the pressing body is in contact with the work in the work discharge section of the apparatus of the present invention;

FIG. 7 is a front view showing a state in which the work is lifted and brought into contact with the belt of the decompression box in the work unloading section of the apparatus of the present invention.

FIG. 8 is a side view of the work discharge section of the apparatus of the present invention when viewed from the right side in the drawing.

FIG. 9 is a side view of the work unloading section of the apparatus of the present invention as viewed from the right side when cut at the drive source mounting section and the bifurcated leg of the suction body.

FIG. 10 is a side view when the work discharge section of the apparatus of the present invention is cut from the suction hole portion of the suction body and viewed from the right side.

FIG. 11 is a cross-sectional view of the adsorbent used in the apparatus of the present invention, which is cut at a suction hole portion.

FIG. 12 is a bottom view of the adsorbent used in the apparatus of the present invention, which is partially cut at a portion of a swing shaft.

FIG. 13 is a vertical cross-sectional view of a transfer unit used for a work discharge unit of the apparatus of the present invention.

FIG. 14 is a plan view of an example of a work applied to the apparatus of the present invention.

FIGS. 15A to 15E are explanatory diagrams of the operation of the conventional example.

[Explanation of symbols]

 (A) Work inspection device (B) Blank unloading unit (C) Blank inspection unit (D) Sorting unit (E) Good storage unit (F) Defective storage unit (1) Work (1a) … Good product (1b)… Defective product (2)… Adsorbent (3)… Pressing body (4)… Suction ejection part (5)… Elevating part

Claims (3)

[Claims] 1. After pressing a stacked thick sheet-like work from above, or simultaneously with pressing, the end of the work is sucked, and then the end is pulled up, and the part from the pressed part to the sucked part is bent. A gap is created between the workpiece and the work below, and a gas is blown between the workpiece and the work below that are adsorbed by blowing gas into the gap to separate the workpiece. A method for unloading a workpiece inspection device, wherein the method is lifted and then unloaded to the next process. 2. After the end of the laminated thick sheet-shaped work is sucked or held at the same time as the suction, the work is pressed from above, and then the suction end of the work is pulled up to move from the pressed portion to the sucked portion. Bending a portion to create a gap between the lower work and blowing the gas into the gap to allow the gas to flow into and separate from the work being sucked and the lower work, and then being sucked. A method of unloading a workpiece inspection device, wherein a workpiece is lifted and transported to the next process. 3. A pressing body that presses a stacked thick sheet-like work from above, an adsorbing body that suctions an end of the work and then pulls up the end, and suctions the pressing part by pulling up on the adsorbing body. A gas ejecting part for blowing gas into a gap formed between the curved part over the part and the lower work, an elevating part for lifting the pressing body and the adsorbent together with the sucked work, and a next step for the lifted work. And a transport section for transporting the workpiece to a workpiece inspection apparatus.