JPS61254417A - Method and apparatus for reversing and loading article - Google Patents

Abstract

PURPOSE:To provide the automation of changing the arrangement and posture of an article and loading same by lifting up an article with a reversing arm, and then reversing the reversing arm substantially in a 90 deg. arc centering round a horizontal shaft. CONSTITUTION:When a work 1 of the front row reaches a designated position below a reversing machine 3, a delivery conveyer 6 is stopped. When an elevating cylinder 15 is operated to once lower an elevating plate 17 and then drawn up same, the respective adsorption discs 21 absorb the laid work 1 and lift up same. When the elevating plate 17 reaches the upper 1 limit, a motor 20 is operated so that a rotary shaft 19 is turned substantially in a 90 deg. arc to put the work in the vertical state. In such condition, a base plate 11 is advanced by a travelling cylinder 13, and the cylinder 15 is again operated by the forward end of the plate to lower the elevating plate 17. At the lower limit, the adsorption plates 21 release the work 1 to place the work 1 in the vertical state on a loading conveyer 8.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to a method and apparatus for loading powder press-molded products and various other articles into various containers such as a fireproof container called a sagger. This invention relates to a method of simultaneously performing alignment according to containers during loading, and to II.

Conventional Technology As is well known, sintered crystals are produced by pressing raw material powder such as ferrite or ceramics to create a compact, which is then fired, but the main focus of the pressing process is uniform and sufficient pressure. Furthermore, in the firing process, the main focus is on preventing dimensional deviations due to shrinkage and efficient heating, so depending on the shape of the fired crystals to be obtained, it may be necessary to change the posture of the green compact in each process. That is, taking as an example a green compact (hereinafter referred to as a work) 1 with a C-shaped cross section (arc-shaped cross section) shown in FIG. is large relative to the thickness in degrees Celsius, so in the pressurizing process using a press, in order to pressurize the entire body sufficiently and uniformly,
It is necessary to apply pressure so that the workpiece 1 is placed horizontally as shown in FIG. On the other hand, in the firing process, in order to avoid changes in the cross-sectional shape due to its own weight and to improve heating efficiency, the saggers are placed vertically as shown in Figures 8 and 9, and packed at a constant pitch. It needs to be arrayed inside. When sending such a dangerous workpiece 1 to the firing process, in order to avoid the danger of workers getting close to the press machine, the workpiece 1 should be removed from the press machine, for example, by the upper mold of the press machine. Conventionally, this has been done using a take-out machine equipped with a large number of suction cups inserted between the workpieces and the lower mold, but loading the workpieces 1 into the sagger 2 requires changing the direction of the workpieces 1 and rearranging them with closer spacing. Moreover, since the work 1 described above is extremely susceptible to impact and is brittle, it is difficult to perform the process using mechanical force, and the process has been performed manually.

Problems to be Solved by the Invention However, in the past, loading the workpiece 1 into the sagger 2 had to be done manually, so at least one worker was assigned to one or two presses. There was a problem that became an obstacle to efforts to rationalize and save labor. In addition, the workpieces 1 are taken out from the press machine and transported in large numbers at the same time, whereas the loading of the workpieces into the sagger is done manually, so there is a large difference in work speed. The loading of the workpiece 1 requires speed, and as a result, combined with the simple nature of the work, there is a high risk that the handling of the workpiece 1 will be messy, causing damage to its corners, and reducing the quality of the product. In addition, the arrangement of the workpieces 1 within the injury 2 becomes non-uniform, resulting in variations in firing, which also poses a risk of degrading the quality of the product.

SUMMARY OF THE INVENTION In view of the above circumstances, it is an object of the present invention to provide a method and apparatus capable of automating the loading of articles that involve changes in posture and pitch in an arrayed state.

Measures for Solving Problems a The method of the present invention involves lifting up a horizontally placed target article sent by a carry-out conveyor from a pre-process such as a press by a reversing arm at the terminal end of the carry-out conveyor, and Rotate the inversion arm approximately 90 degrees around the horizontal axis.
``The article is rotated and reversed to the wi-placed state, and the article is placed on the loading conveyor following the unloading conveyor, and each time the article is transferred in this way, the loading conveyor is moved to a predetermined position.
After moving by a pitch and transferring a predetermined number of articles in line at a fixed pitch, the loading conveyor is run, and at the end thereof, the articles on the loading conveyor are lifted by a loading machine that reciprocates in the width direction of the loading conveyor. This method is characterized by loading the container into a predetermined container.

Furthermore, the apparatus of the present invention is arranged between a carry-out conveyor that conveys the target article from a previous process and a loading conveyor disposed following the carry-out conveyor, in which the article is lifted by a reversing arm, and the reversing arm is moved approximately 90 degrees centering on a horizontal axis. A rotating reversing machine is installed so that it can reciprocate between the upper parts of each conveyor, and a loading machine is installed at the end of the loading conveyor to load the articles into containers placed adjacent to the conveyor. It is characterized by certain things.

Accordingly, according to the method and apparatus of the present invention, articles sent horizontally are lifted from the output conveyor by the reversing arm of the reversing machine, and the reversing arm rotates approximately 90'' around the horizontal axis. ttL by moving
The posture can be changed to a lying state. Then, the reversing machine moves to the loading conveyor side and places the article vertically on the loading conveyor, after which the loading conveyor moves by one predetermined pitch. By repeating these operations, the articles are arranged at a constant pitch on the loading conveyor. After a predetermined number of articles are transferred to the loading conveyor, the loading conveyor continuously travels to convey a group of articles, and at the end of the loading conveyor, a loading rack lifts the vertically arranged articles and transfers them into containers. Load. In that case, the pitch of the articles is set appropriately by changing the stop position of the loading machine.

Example Next, this invention will be explained in detail.

First, to explain the apparatus according to the present invention, FIGS. 1 to 3 show the reversing machine 13, FIGS. 4 and 5 show the loading machine 4, and FIG. 6 roughly shows the reversing machine 3 and the loading machine. The overall layout of the device incorporating Akebono 4 is shown. The device shown in these figures is for loading the workpiece 1 shown in FIG. 7 into the sagger 2 shown in FIGS. 8 and 9, and press-forms the raw material powder as shown in FIG. Take out the work 1 obtained from the press t15 and place it on the carry-out conveyor 6! 17 is press! It is provided adjacent to 15. The extractor 7 has a configuration similar to that commonly used in the past, and has a large number of vacuum suction or magnetic suction configurations. ! (not shown), which is inserted into the inside of the press tIa5, and the workpiece 1 is taken out by suction and lifting. Therefore, the workpieces 1 are conveyed by the carry-out conveyor 6 in a horizontal state while being arranged inside the press machine 5. A loading conveyor 8 is arranged following the unloading conveyor 6, and an inversion tI13 is provided between the upper end of the unloading conveyor 6 and the upper end of the loading conveyor 8.
is provided.

That is, a pair of left and right guide bars 9 extend from above the terminal end of the unloading conveyor 6 to above the loading conveyor 8, and align both front and rear ends of the machine frame 1 so that they are parallel to these conveyors 6.8.
0, and its guide bar 9
The board 11 is attached to the rear end of the machine frame 10 (the left end in FIG. ), and its rod 14 is connected to the substrate 11. Also, the board 11
An elevating cylinder 15 is attached downward to the center of the rod, and an elevating plate 17 guided vertically by a guide 16 is attached to the lower end of the rod. Bearings 18 are provided hanging down on both the left and right sides of the front end side (right side (Ilg) in FIG. ,
Further, one end of the rotating shaft 19 is connected to a motor 20 suspended from the lifting plate 17. A reversing arm 22 having a suction cup 21 at its tip for vacuum or magnetic suction of the workpiece 1 is attached to the rotating shaft 19 at the same pitch as the workpieces arranged in the width direction on the upper surface of the carry-out conveyor 6. ing.

In addition, since the holding position of the workpiece 1 becomes higher when the reversing arm 22 rotates from a vertical state to a horizontal state,
The loading conveyor 8 is installed at a slightly higher position than the unloading conveyor 6.

On the other hand, a loading section 114 provided at the terminal end of the loading conveyor 8
The configuration is such that each row along the length of the loading conveyor 8 is sucked and lifted up, and loaded onto the sagger 2. That is, as shown in FIGS. 4 and 5, a pair of rails 23 are installed above the terminal end of the loading conveyor 8 along its width direction.
A trolley 25 with a loading cylinder 24 mounted downward is installed on the rail 23, and the lower end of the rod of the loading cylinder 24 is capable of suctioning or holding multiple workpieces 1 at the same time. A clamping chuck portion 26 is attached. Mosagar 2 is
It is arranged adjacent to the loading conveyor 8 and below between the rails 23 . Adsorption or clamping may be selected depending on the shape and material of the workpiece.

Next, the operation of the apparatus configured as described above, that is, the loading method of the present invention will be explained.

As shown in FIG. 1, the workpieces 1 taken out from the press machine 5 by the takeout machine 7 are placed horizontally with their arcuate surfaces facing downward, and are arranged in a matrix and transported by the takeout conveyor 6. Work 1 in the front row is reversed 11
When the conveyor 6 reaches a predetermined position below 3, the conveyor 6 stops. Such a stopping operation can be performed by detecting the position of the workpiece 1 using a detector such as a phototube or a proximity switch. At this time, the substrate 1 of the inversion 613
1 is at the backward end, each reversing arm 22 is directed downward, and the suction plate 21 is positioned above the workpiece 1 in the front row. Therefore, the lifting cylinder 15 operates to temporarily move the lifting plate 17 When lifted up after being lowered, each suction cup 21 suctions and lifts the horizontally placed work 1. When the lifting plate 17 reaches its upper limit, the motor 20 operates to rotate the rotary shaft 19 by approximately 90 degrees, and accordingly, the downward reversing arm 22 enters the state shown by the chain line in Fig. M1, so that the workpiece 1 is It will be oriented vertically. In this state, the substrate 11 is moved forward by the traveling cylinder 13, and the lifting cylinder 15 operates again at the roadside in front of it to lower the lifting plate 17, and at the lower limit, the suction cup 21 releases the suction of the workpiece 1 (
As a result, the workpiece 1 is placed vertically on the loading conveyor 8.

Thereafter, the substrate 11 is moved backward by the traveling cylinder 13, and the reversing arm 22 is rotated downward again. In the meantime, the outdoor conveyor 6 moves forward, and the second
The workpiece 1 in the row is moved below the suction cup 21,
Further, the loading conveyor 8 moves forward by a predetermined pitch in order to place the works 1 in the second row in two rows close to each other vertically.

The lifting plate 17, the reversing arm 22, and the substrate 1
1 performs the series of operations described above, the second g
The 4Jth workpieces 1 are arranged vertically on the loading conveyor 8.

When all the workpieces 1 on the unloading conveyor 6 are transferred to the II placement state on the loading conveyor 8 by carrying out the above operations, the loading conveyor 8 continuously operates to transfer the group of works 1 that have been completely transferred. 10. Above the end of the loading conveyor 8, there is a platform for loading l1M4] lI
25 is waiting, and its chuck part 26 is located above the works 1 lined up in the feeding direction at the side end of the loading conveyor 8 on the injury 2 side. When the loading conveyor 8 stops, the loading cylinder 24 operates to lower the chuck part 26 and then lift it up, thereby sucking and lifting one row of works 1 lined up in the feeding direction, which is carried by the cart 25. The workpiece 1 is transported to a predetermined position on the sagger 2 by running on the rail 23, and then the loading cylinder 24 lowers the chuck part 26 and the chuck part 26 releases the suction of the workpiece 1, so that the workpiece 1 is placed in the sagger 2. loaded. After pulling up the chuck part 26, the carriage 25 returns and stops when the chuck part 26 reaches above the workpieces 1 in the next row. Then, the chuck section 26 and the carriage 25 operate as described above to transport the work 1 to the sagger 2. In that case, by stopping the cart 25 slightly earlier than in the previous case, the workpieces 1 of the next row are loaded into the injury 2 by approaching the preceding row of workpieces. Such control of the stop position and reciprocating movement of the trolley 25 can be easily performed by a sequencer having a limit switch, a counter, etc.

The same applies to the control tll of each conveyor 6.8.

As a result of the above-mentioned series of operations, the posture of the workpiece 1 is changed from the horizontal position to the vertical position, and the arrangement pitch in the feeding direction in the l1M position is narrowed, so that the workpiece 1 is roughly loaded into the sagger 2. The array pitch in the left and right direction is reduced.

Effects of the Invention As is clear from the above description, according to the method and apparatus of the present invention, it is possible to automate the loading of articles into a predetermined container, which involves changing the arrangement posture and changing the arrangement pitch on the left and right sides. Therefore, if it is adopted for loading compacted compacts into a sagger, it can be streamlined and save labor, and when the object is a fragile product that needs to be fired, such as a compacted compact. In this way, it is possible to effectively eliminate inconveniences such as damage at the corners during loading into a container such as a sagger, and non-uniform firing due to disordered arrangement.

[Brief explanation of the drawing]

FIG. 1 is a schematic vertical cross-sectional view showing an example of a reversing machine at gA position according to the present invention, FIG. 2 is a view taken along the m-ml arrow in FIG. 1,
Fig. 3 is a plan view of the reversing machine, Fig. 4 is a schematic front view of the loading machine, Fig. 5 is a schematic side view thereof, Fig. 6 is an overall layout, and Fig. 7 is an example of the target article. 8 is a plan view showing the arrangement in a sagger, which is an example of a container, and FIG. 9 is a partially cutaway front view thereof. 1... Workpiece, 2... Container, 3... Reversing machine,
4...Loading machine, 6...Transfer conveyor, 8.
...Loading conveyor, 11... Board, 13...
Traveling cylinder, 19...Rotating shaft, 20...
Motor, 21... Suction cup, 22... Reversing arm, 24... Loading cylinder, 25... Dolly,
26... Chuck part. Applicant Kawatetsu Techno Research Co., Ltd. Agent Patent Attorney Yutaka 1) Hisashi Take (and 1 other person) Figure 1 Figure 2 Figure 3 Figure 6 Figure 9 Higo] 2

Claims (2)

[Claims] (1) The target article is conveyed horizontally from the previous process by an unloading conveyor, and the article is lifted up by a reversing arm at the end of the unloading conveyor, and then the reversing arm is turned approximately 90 degrees around the horizontal axis. Then, the articles are placed vertically on a loading conveyor that follows the unloading conveyor, and the loading conveyor is moved by a predetermined pitch each time an article is transferred, so that a predetermined number of articles are arranged at a fixed pitch and transferred. After that, a loading conveyor is run, and at a terminal end of the loading conveyor, the article is lifted by a loading machine that reciprocates in the width direction of the loading conveyor, and the article is loaded into a predetermined container. (2) A loading conveyor that transports the target article to a loading position is arranged following the unloading conveyor that conveys the target article from the previous process, and a reversing arm that lifts the article on the unloading conveyor is arranged approximately 90 degrees centering on the horizontal axis. A reversing machine configured to rotate is arranged to reciprocate between the terminal end of the unloading conveyor and the starting end of the loading conveyor, and further lifts the articles on the loading conveyor and transfers them to a predetermined container. An apparatus for reversing and loading articles, characterized in that a loading machine is arranged to reciprocate between the terminal end of the loading conveyor and a container arranged adjacent thereto.