JPH03147671A - Workpiece loading device - Google Patents

Abstract

PURPOSE:To secure safety in the taking-out work by constituting a workpiece loading table so that a loaded workpiece is shifted to the receiving position of a receiving member or more in the taking-out operation for the loaded workpiece. CONSTITUTION:When an operator turns-ON a workpiece taking-out switch, a CPU shifts a receiving member 33 to a retreat position, and a table lift motor 37 is turned continuously in the reverse direction, and a main table 38 and a subtable 40 are raised to the initial positions, together with a holding base 34. When the holding base 34 returns to the initial position, and a rising position detection switch 45a is turned ON, the CPU opens a solenoid valve through a driving circuit, and projects the cylinder rod 39a of a table cylinder 39 upward. Accordingly, the subtable 40 shifts upward from the advance position of a receiving member 33, i.e., from a receiving position, holding a workpiece W, and in this state, the operator takes out the workpiece W loaded on the subtable 40.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a workpiece loading device that sequentially loads workpieces such as springs discharged from a processing device.

[Prior Art] Conventionally, as this type of device, for example,
It is known that this method is applied to a device for gluing cloth shown in Japanese Patent No. 585.

FIGS. 6 and 7 are diagrams showing this conventional apparatus. In the figures, 1 is a supply station, 2 is a heating press station, 3 is a cooling station, and 4 is a workpiece loading device. They are sequentially arranged in the frame 5 according to the cloth conveyance direction.

Furthermore, an endless conveyor belt 6 is provided in the frame 5 to convey the workpiece W from the supply station l through the heating press station 2 and the cooling station 3 to the workpiece a mounting device 4. The conveyor belt 6 is also driven by the drive roll 7.

A set of two workpieces, Wl and W2, placed on the conveyor belt 6 from the supply station 1 are sent to the heated press station 2, where they are placed between the conveyor belt 6 and the covering belt 9 installed on the cylinder 8. At the same time as being pressed,
It is heated by the heating action of a heating rod 8a provided in the cylinder 8. As a result, the workpieces Wl and W2 are bonded together, and then the cooling plate 10 of the cooling station 3
After being sent upwards and cooled, it is sent to the workpiece loading device 4. At this time, the workpiece loading device 4 is waiting near the comb-shaped receiving member 11 or the conveyor belt 6, as shown in FIG. is delivered onto the receiving member ll. Then, the processed product Wl.

When the front end of W2 comes into contact with the screen-shaped workpiece regulating body 12 fitted with the receiving member 11, a photoelectric switch (not shown) is turned on. In response, the receiving member 11 moves in the direction of arrow A and retreats from the lower surface of the workpieces Wl, W2, and the workpieces Wl, W2 descend onto the table plate 13.

Then, immediately tighten the plate 14 or the table plate 13.
The workpieces Wl and W2 placed on the plate 13 are held down, and in response, the table plate 1
3 is lowered by the thickness of the placed workpiece, and then
Upon tightening again, the plate 14 and the receiving member 11 return to their initial positions, ready for loading the next workpiece.

As described above, processing %JW1. is sent out from the cooling station 3. W2 are sequentially stacked on the table plate 13.

By the way, the table plate 13. Receiving member 11
, the workpiece regulating body 12 and the tightening plate 14 are both supported by a traveling frame 16 via a support 15, etc., and this traveling frame 16 is capable of linear movement along a guide rail 17. . Then, when taking out the workpieces Wl and W2 loaded on the table plate 13 as described above, the respective members 11, 12, 13, and 14 are moved integrally with the traveling frame 16 as shown in FIG. While moving the receiving member 11 to the position indicated by the dashed dotted line, the receiving member 11 is moved in the direction of arrow A, and the tightening plate 14 is moved upward, and in this state, the operator takes out the workpiece W.

[Problems to be Solved by the Invention] As described above, in the conventional apparatus, when taking out the workpiece W, the receiving member 11 is retracted from the workpiece W so as not to interfere with one operation. , at this time, the hand of one worker is at the protruding position of the receiving member 11, that is,
The receiving member 11 is held out at the position when it is moved in the A direction. Therefore, if the receiving member 11 inadvertently protrudes during the take-out operation due to malfunction of the control system, for example, a photoelectric switch (not shown) that sends a movement command for the receiving member 11 is turned on due to some reason,
This could hit the worker's hand, posing a risk of injury to the worker. In particular, when the receiving member 11 has a comb blade shape as described above, there is a risk of a major accident.

This invention was developed by focusing on the problems of the conventional device, and it is possible to not only load workpieces reliably but also safely and easily take out mashed workpieces. The purpose is to provide cargo loading equipment.

[Means for Solving the Problems] The present invention provides a receiving member that moves between a workpiece receiving position and a predetermined retreat position in synchronization with the ejection operation of a processing device by a receiving member driving means, and a receiving member that moves between a receiving position and a predetermined retracted position. A workpiece regulating body that comes into contact with the end of the workpiece placed on the workpiece when the workpiece is evacuated, separates the workpiece from the workpiece, and causes the workpiece to fall, and workpieces that fall sequentially from the receiving member are stacked. a workpiece loading table to be held; a first table driving means for moving the workpiece loading table in a direction intersecting the advance/retreat direction of the workpiece receiving member; and control means for controlling the first table driving means so that the workpiece is positioned above the receiving position when the receiving position is reached.

In addition to the control when the workpiece reaches a predetermined planting amount, the control means may also include control when the cloth loading table is moved from the vicinity of the workpiece receiving member in synchronization with each workpiece discharge operation of the processing device. The first table driving means may be controlled to sequentially process the fabric by a predetermined thickness.

[Function] In this invention, the receiving member moves to the retreat position after holding the workpiece discharged from the processing device. On this occasion,
The workpiece placed on the receiving member falls downward as its front end abuts against the cloth regulating body, and is loaded and held on the workpiece loading table at the first position. Thereafter, when the number of workpieces loaded and held on the workpiece loading table reaches a predetermined amount, the control means or the driving means is controlled so that the workpieces loaded on the workpiece loading table are evacuated from the receiving position. Move the loading table. Therefore, the operator does not have to reach out to the protruding position of the receiving member when taking out the workpieces loaded on the loading table.
Retrieval work can be carried out in extremely safe conditions.

[Embodiments of the Invention] Hereinafter, embodiments of the workpiece loading device according to the present invention will be described with reference to FIGS. 1 to 5.

FIG. 1 is a side view showing a state in which an embodiment of the workpiece loading device according to the present invention is applied to an adhesive device that applies heat and pressure processing to fabrics stacked together via an adhesive.

In the figure, 20 is a supply station 21. This bonding device consists of a bonding device main body 23 consisting of a heating and pressurizing station 22, and a cooling station 24 separate from this main body. While being transported, a heating cylinder (not shown) provided at the heating and pressing station performs pressure and heating processing, and then the cooling station 2
4.

Furthermore, in the cooling station 24, the workpiece sent out from the heating and pressurizing station 22 is received by a conveyor 22a, and after being cooled by passing through a cooling air blower 22b, it is discharged from a discharge section 22c. .

In addition, 25 is a shelf for stocking workpieces provided in the supply station 21, 26 is a drive stop switch, and 27 is a full capacity indicator lamp that lights up when the workpiece loading capacity is full in the workpiece loading device, which will be described later. . In addition, the adhesive device 2
For example, as shown in FIGS. 4(a) and 4(b), the workpiece W processed by 0 is a collar part (outer material) Wal or a cuff part (outer material) Wbl of a Y-shirt through adhesive. Interlining Wa2. There are also products in which Wb2 is bonded together.

On the other hand, 28 is a workpiece W discharged from the bonding device 20.
This is a loading device for loading vi, and as shown in FIG. 2, it is 4III&.

In the figure, 29 is a frame having inclined surfaces 29a and 29b, 30 is a cylinder (receiving member driving means) attached to the inclined surface 29a of the frame 29 via a mounting member 31, and the cylinder loft 30a is indicated by #. Inclined surface 29a
It appears in parallel with the. Reference numeral 31a denotes a movable body that is movable in a straight line along a guide rail 32 provided on the inclined surface 29a, and this movable body 31a
The cylinder rod 30a of the cylinder 30 is provided on the upper surface of the cylinder 30.
An arm portion 31b having one end connected to is provided protrudingly,
It appears and disappears together with the cylinder rod 30a.

Furthermore, a receiving member 33 having a comb blade shape is protruded from the front end of the moving body 3.
A receiving position indicated by a dashed line due to the appearance and retraction movement of 1a,
It is possible to move to the retracted position shown by the solid line. Reference numeral 34 denotes a U-shaped holding stand that covers the inclined surface 29b of the frame 29, and a roller 34a attached to this holding stand 34.
, 34b, it is possible to move up and down along the inclined M surface 29b. 35 is a bearing 36 protruding from the inclined surface 29b.
, 36, and is held parallel to the inclined surface 29b, and the threaded portion 35a of the ball screw shaft 35 has the holding base 3
The nut 34c protruding from 4 is screwed into the nut 34c.

Therefore, by rotating this ball screw shaft 35,
The holding table 34 is adapted to move up and down along the inclined surface 29b. Reference numeral 37 denotes a table lift motor (first table driving means) for rotating the ball screw shaft 35, and the rotation shaft 37a is connected to the lower end of the ball screw shaft 35 via a coupling 37b. . 38 is a main table fixed to the upper surface of the holding table 34, 39 is a table cylinder (second table driving means) fixed to this main table 38, and the cylinder rod 3
9a can appear and retract from a through hole 38b formed in the mounting surface 38a of the main table 38, and its upper end is always (in the cylinder OFF state) above the mounting surface 38.
It is located on the same plane as a. Reference numeral 40 designates a sub-table as a workpiece loading table fixed to the upper end of this cylinder rod 39a, which is provided in parallel with the main table 38 and overlaps with the main table 38 when the table cylinder 39 is in the OFF state. There is.

Reference numeral 41 denotes a screen-shaped workpiece regulating body attached so as to protrude upward from the side end placement surface 38a of the main table 38. It is provided at the boundary line of this workpiece regulating body 41.

Further, 42 is a guide plate that guides the workpiece W discharged from the cooling station 24 to the receiving member 33 at the receiving position, and has a plurality of slits for light passage. Reference numeral 43 denotes a workpiece detector for detecting whether or not a workpiece W is present on the guide plate 42, which includes a light emitter/receiver 43a located above the guide plate 42 and a workpiece detector provided below the guide plate 42. When there is no workpiece W on the guide plate 42, that is, when the slit of the guide plate 42 is not covered, the light emitted from the light emitting part of the light emitter/receiver 43a is reflected by the 1 reflecting plate 43b and received by the light receiving part of the light emitter/receiver 43a, so the light emitter/receiver 43a is
N, and when the slit of the guide plate 42 is covered by the workpiece W, the light emitter/receiver 43a and the reflector plate 43b
Since the optical path between the
becomes.

Reference numerals 44a and 44b denote a forward position detection switch and a backward position detection switch for detecting whether the receiving member 33 is in the receiving position or in the retracted position, respectively. ,−
It is turned on and off depending on whether the device is in the immersive state (indicated by the solid line in FIG. 2) or in the immersive state (indicated by the solid line in FIG. 2).

45a and 45b are the main table 38 or the raised position (second
These are a rise detection switch and a fall detection switch that detect whether the holding table 34 is in the raised position (indicated by the solid line in the figure) or in the lowered position (indicated by the dotted chain line in the figure), respectively. It is designed to turn on and off depending on whether it is in the lowered position or not.

FIG. 3 is a block diagram showing the control system circuit in this embodiment, and in the figure, 46 is a CPU 46a.

A well-known microcomputer as a control means consisting of ROM 46b, RAM 46c, etc. is shown.

The CPU 46a of the microcomputer 46 includes the light emitter/receiver 43a, the forward position detection switch 44a, the backward position detection switch 44b, and the up position confirmation switch 45a.
, lowering position confirmation switch 45b, drive stop switch 2
6. Output signals from a setting timer 47 and a workpiece take-out switch 48 are also input.

The setting timer 47 is used to set the operation timing of the receiving member 3B and the main table 38, and the workpiece take-out switch 48 is used to send out a product take-out command.

Furthermore, drive circuits 49, 50, 51, and 52 for driving the respective drive units described above are connected to the output side of the CPU 46a. Among these, 49 is a drive circuit for a solenoid valve 54 interposed between the cylinder 30 and air [53, 50 is a drive circuit for the table lift motor 37, and 51 is a full capacity indicator lamp 2.
7, a drive circuit for various indicators 55, 52 is a solenoid valve 5 interposed between the table cylinder 39 and the air source 53;
This is the No. 6 drive circuit.

Next, a series of workpiece loading operations of the workpiece loading device having the above configuration will be explained.

In the initial state, the receiving member 33 is connected to the workpiece regulating body 41
The main table 38 is in a more rearward retracted position, and the main table 38 is in the highest position (both shown by solid lines in FIG. 2). Then, the drive stop switch 26 is turned on, the cylinder 30 is activated, and the receiving member 33 is advanced to the receiving position. Next, from the cooling station 24 of the processing device 20, the conveyor 22a
The workpiece W conveyed by the guide plate 42 reaches the receiving member 33, further slides down along the inclined surface of the receiving member 33, and its front end abuts the workpiece regulating body and is held. At this time, when the workpiece W passes over the guide plate 42, the output of the light emitter/receiver 43a changes from an ON signal to an OFF signal. After the time has elapsed, the solenoid valve 54 is closed, and the cylinder rod 30a of the cylinder 30 is closed.
is retracted, and the receiving member 33 is moved to a retracted position (indicated by a solid line in FIG. 2) behind the workpiece regulating body 41. Note that the delay time for retracting the receiving member 33 after receiving the OFF signal of the light emitting/receiving path 43a is as follows:
This is the time required for the workpiece to come into contact with the workpiece regulating body 41.

Due to the backward movement of the receiving member 33, the workpiece W falls onto the sub-table 40 located below and is held while being regulated by the workpiece regulating body 41 at the front end. Further, when the receiving member 33 moves backward and the output of the backward position detection switch 44b changes from an OFF signal to an ON signal, the CPU 46a rotates the table lift motor 37 in the forward direction for a predetermined period of time via the drive circuit 50 accordingly.

As a result, the ball screw shaft 35 rotates, and the main table 38 and the sub-table 40 are lowered together with the holding table 34 by the amount equal to the workpiece. In addition, the table lift motor 37
The driving time is set in advance by the timer setting unit 47 depending on the operator or the thickness of the workpiece W.

Thereafter, the receiving member 33 returns to the receiving position by the protruding action of the cylinder 30 and prepares for receiving the next workpiece W.

By repeating the above operations, the workpieces W discharged from the processing device 20 are sequentially loaded onto the sub-table 40. Then, when the holding table 34 reaches the lowest position and the load on the sub-table 40 becomes full, the output of the lowering position detection switch 45b changes from OFF to ON, and upon receiving this, the CPU 46a turns on the drive circuit. 51 to prompt the operator to take out the workpiece by lighting the full quantity indicator lamp 27 or driving a buzzer (not shown).

This notification action prompts the operator to switch the workpiece removal switch 4.
8, the CPU 46a first closes the solenoid valve 54, retracts the cylinder rod 30a of the cylinder 30, and moves the receiving member 33 to the retracted position. Next, the table lift motor 37 is continuously rotated in the opposite direction via the drive circuit 50 to raise the main table 38 and the sub table 40 together with the holding table 34 to the initial position. Then, the holding base 34 returns to the initial position, and the elevated position detection switch 4
5a is turned ON, the CPU 46a opens the solenoid valve 56 via the drive circuit 52, and causes the cylinder rod 39a of the table cylinder 39 to protrude upward. As a result, the sub-table 40 holds the workpiece W while the receiving member 3
3, and in this state, the operator takes out the workpiece W loaded on the sub-table 40. Therefore, in this take-out operation, the worker can take out the workpiece W without reaching out to the receiving position, which is the forward position of the receiving member 33, so that the workpiece W cannot be taken out due to a malfunction of the control system, etc. While working, in the unlikely event that
Even if the receiving member 33 protrudes, there is no risk of it colliding with the worker's hand, and work safety is ensured.

Furthermore, even if the second table driving means 39 is omitted in FIG. 2, when the workpieces W loaded on the sub-table 40 reach their full capacity, the first table driving means 37 drives the workpieces W loaded on the sub-table 40. If it is located above the receiving position, the same effect as the above-mentioned structure can be obtained and the structure can be simplified.

However, it is necessary to return the sub-table 40 to the initial position after the workpiece is taken out.

In the above embodiment, the detection of whether the workpieces W loaded on the sub-table 40 have reached the full capacity is carried out by the holding table 3.
4, the detection is performed based on whether or not the lowest position has been reached, that is, whether the lowering position switch 45b is turned on, but other means may also be used to detect the full load. It is. For example, it is also possible to count the number of times the receiving member 33 moves to the retracted position using the CPU 46a, etc., and determine whether or not it is full based on whether or not the count value reaches a predetermined value. It is.

In that case, the count value may be incremented every time the evacuation position detection switch 44b is turned on. Also, 1
When lowering the sub-table 40 each time, the level of the upper surface of the laminate on the sub-table 40 is detected using an optical sensor, etc., and the sensor turns ON (or
FF).

Furthermore, in the above embodiment, when taking out the workpiece W,
The sub-table 40 may be made to protrude above the receiving position of the receiving member 33, or the sub-table may be moved in another direction, for example in the horizontal direction, to evacuate the aa processed SW from the receiving position. . This can be realized, for example, by configuring a main table and a sub-table as shown in FIG. That is, the main table 38
A pair of rails 38A are provided on the upper surface of the holder 38A, which extend in a direction perpendicular to the direction in which the receiving member 33 moves forward and backward.

38B is provided, and this rail 38A.

Both sides of the sub-table 57 are movably fitted into 38B. Further, a cylinder rod 59a of a cylinder 59 is connected to one end of the sub-table 57, and when the workpiece loading amount on the sub-table 57 becomes full, the first
After the sub table 57 is positioned above the above-mentioned receiving position by the table driving means 37, the cylinder 59
By protruding the cylinder rod 59a in the direction of arrow B, the sub table 57 is moved and the workpieces loaded on the table are taken out.

Even if the sub-table 57 is moved in the horizontal direction in this manner, the workpiece W can be safely taken out as in the above embodiment.

Further, in the above embodiment, the case where the workpiece loading device according to the present invention is applied to loading workpieces discharged from a bonding device is explained as an example, but the present invention can also be applied to other devices. and is not particularly limited to the above embodiments.

[Effects of the Invention] As explained above, according to the workpiece loading device according to the present invention, while reciprocating the receiving member between the receiving position and the retreat position, the workpiece discharged from the processing device is reliably loaded into the workpiece. It can be loaded onto the loading table, and
When taking out the loaded workpieces, the workpiece at table can be moved to a position above the receiving position of the receiving member for the workpieces that have been aaed thereto.

The operator can take out the workpiece without reaching out to the receiving position of the receiving member.

Therefore, even if the receiving member were to protrude to the receiving position during the unloading operation due to a malfunction of the control system, there is no risk of the object colliding with the operator's hand, thereby improving safety during the unloading operation. can be ensured.

[Brief explanation of the drawing]

Fig. 1 is a side view showing an embodiment of the present invention applied to a bonding device, Fig. 2 is a side view showing an embodiment of the invention, and Fig. 3 is a control system circuit in the same embodiment. Block diagram, FIG. 4(a). (b) is a perspective view showing an example of a workpiece processed by the bonding device shown in FIG. b) is the same figure as (a)
), FIG. 6 is a side view showing a conventional technique, and FIG. 7 is a plan view of the device shown in FIG. 6. 20... Processing device 30... Cylinder (receiving member driving means) 33.
... Workpiece receiving member 37 ... Table lift motor (first table driving means) 39 ... Table cylinder (second table driving means) 40 ... Sub-table (workpiece loading table) 41
... Workpiece regulating body 57 ... Sub-table 59 ... Cylinder (third table driver stage) Applicant Shuuki Co., Ltd. Fig. 4 (a) (b)

Claims (4)

[Claims] (1) A workpiece loading device that sequentially loads cloth-like workpieces discharged from a predetermined processing device, and moves back and forth between a receiving position for receiving the workpiece discharged from the processing device and a predetermined retreat position. a workpiece receiving member provided so as to be able to receive the workpiece; a receiving member driving means for moving the workpiece receiving member forward and backward in synchronization with the workpiece discharging operation of the processing device; and a receiving member drive means provided at a boundary position between the receiving position and the retreat position. , a workpiece regulating body that comes into contact with an end of the workpiece placed on the receiving member to separate the member and the workpiece and causes the workpiece to fall when the receiving member is retracted, and a workpiece that falls sequentially from the receiving member; a workpiece loading table that holds incoming workpieces in a stack and is movable in a direction intersecting the advancing and retracting direction of the workpiece receiving member; a first table driving means for moving the workpiece loading table; and control means for controlling the first table driving means so that the workpiece on the loading table is positioned above the receiving position when the workpiece loading amount on the loading table reaches a predetermined amount. Workpiece loading device. (2) The workpiece loading table is raised and lowered by the first table driving means, and when the workpiece loading amount on the loading table reaches a predetermined amount, the table is positioned below the receiving position of the receiving member. 2. The workpiece loading device according to claim 1, wherein the second table driving means is controlled to raise the workpiece and further raise the workpiece to above the above position. (3) The workpiece loading table is provided so as to be horizontally movable by the third table driving means, and the control means controls the workpiece loading table by the first table driving means when the workpiece loading amount on the loading table reaches a predetermined amount. Claim (1) characterized in that the workpiece on the table is raised to a position above the receiving position, and the workpiece loading table is controlled from this position.
1) The workpiece loading device described above. (4) The control means is configured to drive the first table so that the workpiece loading table is sequentially lowered by a predetermined cloth thickness from the vicinity of the workpiece receiving member in synchronization with each workpiece discharge operation of the processing device. In addition to controlling the means, the number of times the workpiece is loaded onto the workpiece loading table is counted, and when the count value reaches a preset count value, it is determined that the workpiece loading amount has reached a predetermined amount. The workpiece loading device according to any one of claims (1) to (3), characterized in that the workpiece loading device performs the following.