JPS63154515A - Package unloading device - Google Patents

Abstract

PURPOSE:To enable unloading of packages having different diameters while alingning the centers, in a package unloader for bobbin winder, by receiving a package onto a frame turnable between two positions and detecting the diameter of the package based on the displacement of a clamp member when the package is clamped by said clamp member. CONSTITUTION:A package P is mounted onto a receiving member 5 of a frame 3 having a sliding member 4 being held at a predetermined height, then a plate 33 and a slide block 32 are lowered by means of a hydraulic cylinder 36 so as to operate clamp members 6, 7 through coupling rods 27, 28. Here, the lowering amount of the side block 32 varies in proportion to the diameter of the package P. Consequently, the lowering amount of the package P when the sliding member 4 is lowered through a chain 13 and a sensor 39 is operated to stop the lowering varies in accordance with the diameter of the package and the central positions are aligned. With such arrangement, packages having different diameters can be unloaded with the centers thereof being aligned.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a package unloading device.

[Conventional technology]

Pancakes produced in a winding machine such as an automatic wine goo are transported to the next process by various transport means.

For example, a device in which pan cages are suspended and transferred one by one by a hanger running along a ceiling rail is disclosed in Japanese Utility Model Publication No. 55-34187, Japanese Patent Publication No. 54-2402, and the like.

[Problem that the invention seeks to solve]

When conveying packages by such an overhead conveyor, it is necessary to unload the packages from the conveyor to a predetermined position in the next process, such as a package inspection station or a packaging station, and such unloading equipment is also required. Various proposals have been made.

On the other hand, with recent high-mix, low-volume production systems, the number of pan cages suspended on the overhead conveyor is not limited to one type, and multiple types of packages are conveyed at the same time. That is, packages of different shapes, sizes, colors, counts, etc. are conveyed in order or at random.

Therefore, when unloading the various packages mentioned above, a problem arises when unloading packages with different thread waste diameters. For example, the axial center of the package should be oriented in the transport direction while the package is being transported, and after unloading, the axial center should be reversed so that the axial center is always located at the fixed position of the processing station in a vertical state. This is not possible with an unloading device that simply repeats an l-pattern operation, and it is particularly troublesome to align the axis of the package in a device that unloads the package while supporting the thread waste surface of the package.

The present invention aims to solve the above problem, and exhibits a particularly remarkable effect when packages of different sizes are transported in a random order without making any adjustments to pan cages of different sizes. It provides an unloading device.

[Means for solving problems]

A main body frame that can be rotated to two positions around one axis, a slide member that can slide up and down with respect to the frame, a package receiving material that receives the pan cage thread layer surface provided on the sliding member, and a package receiving material that receives the surface of the pan cage yarn layer provided on the sliding member; It consists of a pair of movable clamp members that clamp the pan cage, and furthermore, the downward movement of the slide member is automatically adjusted in accordance with the amount of displacement of the clamp members based on the difference in package diameter.

[Effect]

The difference in package diameter corresponds to the amount of displacement of a clamp piece that clamps the outer layer of the package, and the amount of descent of the slide member that supported the clamp piece follows the amount of displacement of the clamp piece,
Adjust the amount of descent of the slide member so that the position where the slide member that clamps the package descends from the package receiving position and stops is always at the same position as the center of rotation of the main body frame and the axis of the package at the station side pancage transfer position. is automatically adjusted, and the adjustment is determined from the amount of displacement of the clamp piece in contact with the outer layer of the package.
This allows it to follow even if the size of the package changes steplessly.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings.

In FIGS. 1 and 2, the unloading device (1) has a main body frame (3) fixed to a rotating shaft (2) that can rotate, and a main body frame (3) that can be slid up and down with respect to the frame (3). A slide member (4), a fixed package receiver (5) installed on the slide member (4), a movable pan cage clamp member (6), (7), and the clamp member (
6) Conversion mechanism (8) for converting the amount of displacement caused by the package diameter in (7) into the amount of descent of the slide member.
Consists of etc.

The rotating shaft (2) supports the main body frame (3), and the shaft (
Sprockets (9) and (10) are fixed to the main body frame (3), another sprocket (11) rotates freely about the shaft (2), and the sprocket (11) is screwed to the main body frame (3). ) has been done. Therefore, the rotation of the sprocket (9) causes the shaft (2) to rotate, thereby rotating the lifting chain (13) inside the main body frame.

Due to the rotation of the sprocket (11), the shaft (2) does not rotate, but the main body frame (3) pivots around the shaft (2).

A bearing (14) is fixed to the main body frame (3),
A shirt l-(15) integral with the slide member (4) is supported through the bearing (14). above shirt) (1
5) The lower end is connected by a chain (13) and metal fitting (17) that are placed between the sprockets (10) and (16), so that the shaft (15) moves up and down as the chain (13) rotates in the forward and reverse directions. .

Further, the slide member (4) is connected to the shaft (15).
), and on the bracket (18) there is a package support material (5) that supports the lower surface of the yarn layer of the pan cage suspended from the ceiling hanger, and a support material. (5) Clamp members (6) and (7) are provided from both sides of the outer periphery of the yarn layer to clamp the package placed on the yarn layer. The clamp members (6) and (7) have a valley-shaped contact surface with the pan cage, and one of the clamp members (6) and (7) has a valley-shaped contact surface with the pan cage.
7) is a lever (19) (20) that is pivoted (21) (2
2), and the other ends of the levers (19) and (20) are pivoted (23) and (24) to the plate (2) erected on the bracket (18) to form a link mechanism, and the clamp member (7 ) performs a parallel movement.

Similarly, the other clamp member (6) also has a lever (25) (
26) forms a link mechanism.

Furthermore, one end of a rod (27) (28) for adjusting the amount of descent of the slide member is supported (29) (30) between the levers (20) (26), and the rod (27)
The other end of (2B) is a slide block (
Connected to the plate (33) integrated with (32) (34) (3
5) It has been done. In addition, the above rod (27) (2
B) and the connection point (2) with the lever (20) (26)
9) Connection point (3) with (30) and plate (33)
4) The position (35), that is, the inclination angle of the rods (27) and (28), can be set experimentally or theoretically based on the principle described below.

That is, the difference i1) in the movement amount of the clamp members (6) and (7) caused by the diameter difference of the package (PI) (β2) approximately corresponds to the diameter difference of 2, that is, the package (PI)
(β2) center point (C1) (C2) is approximately equal to the difference (7 points). Therefore, the above movement amount (β1) is transferred via the lever (20) and the rod (27) to the connection point (34) at the lower end of the rod.
) is converted into the vertical movement amount (12), and the above movement amount 1t
) (#2) is equal to the difference (p).
) are connected to the lever (20) and the plate (33).
).

The rods (27) (2B) also have a mechanism as a drive transmission rod for transmitting the drive of the fluid cylinder (36) to the clamp members (6) (7), and are attached downward to the bracket (8). Fixed fluid cylinder (36
The piston rod (37) of the slide block (
32) and L-shaped play) (3B).

Further, the main body frame (3) is provided with a structure in which the slide block (32) is detected and the slide block (32) is
A proximity sensor (39) is provided to stop the vehicle at a fixed position. That is, when the slide block (32) is stopped at the sensor (39) position, the center of the package held by the clamp member is a constant distance from the center of rotation of the two-body frame (3) regardless of the size of the package. .

As shown in the third figure, the proximity sensor (39) detects the lower end surface (40) of the slide block (32) and
) to stop its descent.

In FIG. 4, the arrangement relationship among the unloading device (1), the overhead conveyor (41), and the handle/cage processing station (42) is shown. That is, the package (P), which is conveyed with the thread waste surface placed on the hanger (43) of the overhead conveyor (41), is transported by the unloading device (
Once stopped at a predetermined position above 1), the receiver on the slide member of the aforementioned unloading device is transferred onto the material (5) and clamped, and then the package (P) is lowered when the slide member is lowered. Descend to the position indicated by the two-dot chain line (Pa). The distance (L) between the center of the package at this position and the pivot axis (2) is
Pan cage insertion tray (4) on the station (42) side
4) The distance (L) between the center of the peg (45) and the pivot axis is equal. The motor (Ml) is for raising and lowering the slide member, the motor (M2) is for rotating the main body frame (3), and the main frame (3) is moved from the vertical position of the two-dot chain line position (3a) to the solid line position (3). Rotate to horizontal position.

An example of the above hanger (43) is shown in Fig. 5.6. Cheno (47) running along the ceiling rail (46)
The nozzle (43) suspended from the package is formed by package supporting rods (50) (51), (52) (53) installed between the front and rear frames (4B) (49) in the running direction, As shown in Fig. 5, the space between the rods (50) and (51) is opened by a size that allows the receiving material of the unloading device (Fig. 1 (5)) to pass through, and the package (PI) (P2) is The thread layer surface is placed on the rods (50) and (51) while being transported.

(P2) is a package having a larger diameter than the package (Pl), and therefore, the position of the central axis of the package during transportation differs depending on the size of the package. Note that the rising position of the receiving material (5) is constant, and it rises to the position (5) indicated by the two-dot chain line in FIG. By running only the hanger (43) in this state, the package is delivered onto the receiving material (5).

The unloading operation by the unloading device as described above will be explained next.

In Fig. 7, when unloading a small-diameter package (PL), the slide member (4) rises to a certain height H) from the shaft (2), and the package on the hanger is moved to the receiving material (5).
Receive above.

That is, the pan cage (Pl) at the solid line position in FIG. 7 corresponds to the small diameter package (Pla) in FIG.

The receiving position for the large-diameter package is also at the position H) where the slide member (4) is at the same height as shown in FIG. When the slide member rises to the above height (), the clamp members (6) and (7) are in the solid line position in Figure 1, and the piston rod (37) of the fluid cylinder (36) is in the most retracted position. .

When the package (Pl) shown in FIG. 7 is placed on the receiving material (5), the fluid cylinder (36) is activated and the plate (3)
3) The slide block (32) is lowered and moved in parallel to the position where the clamp members (6) and (7) are pressed against the outer peripheral surface of the package (Pl) by the link mechanism via the connecting rods (27) and (28). . At this time, the amount of descent of the slide block (32) varies in proportion to the package diameter. That is, in the case of a small diameter package (PI), when the slide member (4) is located at a height H) and the clamp member clamps, the slide block (32) is lowered to the position shown by the solid line in FIG. In this state, next the cheno (1
3), the slide member (4) is lowered by the reverse rotation of the slide member (4), and a fluid cylinder (36) integrated with the slide member (4);
The slide block (32) etc. are also lowered at the same time, and a part of the slide block (32), that is, the lower end surface (4) in this embodiment, is lowered.
0) is a proximity sensor (39) fixed to the main body frame (3).
) so that the descent stops when the sensor (3) is reached.
The motor (Fig. 4 (Ml)) is stopped by the signal 9). At the position where the slide member (4) stops, the receiving material (5)
The distance (L) is between the center (C1) of the upper package (Pl) and the pivot axis (2) of the main body frame (3).

On the other hand, in the case of the large-diameter package (P2) shown in Figure 8, the package receiving position of the receiving material (5) is at the same height (H) position as in the case of the small-diameter package, but the clamp member (6) (7
) when clamping the pan cage (P2), that is, the amount of advancement of the piston rod (37) of the fluid cylinder (36) for clamping is different, and therefore the amount of descent of the slide block (32) is different from that of the small diameter package. The difference is smaller than that in the case of , and the difference is equal to the height difference (A) between the centers of the packages on the receiving material at the package receiving position as described above. That is, the difference in movement of the slide member (FIG. 1 (j!2)) is equal to the distance difference (β) between the centers of the packages.

Therefore, in FIG. 8, the slide member (4) descends with the pan cage clamped, and the slide block (
32) descends to the proximity sensor (39) position, and when it stops, it reaches position (4a) and the pan cage (P2) on the receiving material (5)
The distance between the center (C2) of the main body frame (3) and the pivot axis (2) of the main body frame (3) is the same distance (L) as in the case of the small diameter pancage (Pl).

Next, as shown in FIG.
By rotating 90 degrees around the pivot axis (2),
) whose center is located at a distance (L) from the package (
Pl) or (P2) can be transferred to the peg (45) of the package loading tray (44) at a fixed position on the ground side station. As shown in Figure 4, when the package (P) is rotated 90 degrees, it is located slightly above the tray, and when the clamp members (6) and (7) are released, the package (Pb) falls slightly. It is designed to be inserted into the peg (45).

That is, the upper end of the peg (45) is formed with a tapered surface, and the slight deviation between the center of the package and the center of the peg is automatically corrected by the self-aligning action of the tapered surface.
is inserted into the peg (45).

〔Effect of the invention〕

As described above, in the present invention, even packages of different diameters conveyed by an overhead conveyor can be loaded and unloaded at the same fixed position hepaso cage center on the ground side. It is possible to unload the load without shifting the center of the load, which is particularly effective in high-mix, low-volume production systems.

[Brief explanation of the drawing]

Figure 1 is a front view showing an embodiment of the device of the present invention, Figure 2 is a side view of the same, Figure 3 is a side view showing the relationship between the slide block and the proximity sensor, and Figure 4 is the unloading device of the present invention. 5 is a front view showing an example of a package transfer hanger, 6 is a side view of the same, and 7 and 8 are unloading devices. FIG. 7 is an explanatory diagram showing the operation of a small-diameter package, and FIG. 8 is an explanatory diagram showing a case of a large-diameter package. (1)...Unloading device (2)...Rotating shaft (3)...Body frame (4)...Slide member (5)...Package receiving material (6) (7)・Clamp member (32) ・Slide block (39) ・Sensor (P ) (PI) (P2) ・Pan cage continuation R 7J"J

Claims (1)

[Claims] A main body frame that can be rotated to two positions around one axis, a sliding member that slides up and down with respect to the frame, a package receiving material provided on the sliding member that receives the surface of the package yarn layer, and a package on the receiving material. It consists of a pair of movable clamp members that clamp, a slide block that is displaced in relation to the movement of the clamp members, and a sensor that is provided on the main body frame and detects the lowering end of the slide block. A package unloading device characterized in that the amount changes in accordance with the amount of displacement of a clamp member based on a difference in package diameter.