JPS649094B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION When manufacturing cores for motor cores using an automatic press, the present invention continuously conveys punched round cores and scraps on a conveyor at a substantially constant conveyance speed.
The present invention relates to an apparatus for separating the scrap on the conveyor and taking out the round core after the round core continues to be conveyed and is transferred to a transfer conveyor disposed above the conveyor. Traditionally, scrap has been taken out by punching only the round core in the punching process of an automatic press and winding up the scrap, and by separating the scrap in the punching process.Generally speaking, scrap is separated because post-processing is easy. Many laws are used. Examples of this type of conventional method are shown in Figures 1 and 2.
As shown in FIG. In FIG. 1, after a coiled material 11 is attached to an uncoiler 12, the bending of the coiled material 11 is straightened by a bending straightener 13, and the coiled material 11 is inserted into a press mold 15 through a roller feeder 14. The coil material 11 is fed to a predetermined length by the operation of the roller feeder 14 which is interlocked with the movement of the press 16, and then
As shown in the figure, the round core 21 is punched out from the coil material 11, and the scrap 22 is cut off.
is drawn onto the conveyor 17 by the feeding of the coil material 11. The relative positions of the priss mold 15 and the conveyor 17 are shown in FIG.
Press mold 15 so that the round core 21 can be easily transferred.
It is placed close to the lower die and is transported to a predetermined position. A core accumulating device 19a comprising a core bridging plate 18a and a mandrel in front of the conveyor 17
and a core abutting plate 18b. The round cores 21 conveyed on the conveyor 17 are dropped via the core bridging plate 18a, hit against the core abutment plate 18b, and are guided through the core holes with a mandrel to be accumulated. The scraps 22 are dropped between the conveyor 17 and the core bridging plate 18a and stored in a scrap receiver 19b provided below. In this method, when the scrap is conveyed on the conveyor, it tends to fall and cross the core bridging plate, which may obstruct the insertion of the round core into the mandrel, or may fall around the core accumulator due to uncertain insertion. There are many things to do. Therefore, there were drawbacks such as the need for human resources for monitoring and low productivity. The object of the present invention is to eliminate the above-mentioned drawbacks, to separate the scraps during transportation, and to automatically take out the round cores and accumulate them in a core accumulating device.

According to the present invention, a device separates scrap from round cores and scraps punched by an automatic press and continuously conveyed horizontally at a substantially constant speed on a conveyor having a magnetic roller, and takes out and loads the round cores. A trap is provided with a magnet roller having a width narrower than the diameter of the round core and a gap between both sides of the conveyor in the middle of conveyance, and a trap located in front of the trap that is slightly lower than the upper surface of the magnet roller. a conveyor provided with a scrap abutment stopper and a chute arranged at the same position, and a conveyor disposed parallel to the conveyor horizontally in front of the conveyor and vertically above the conveyor; It consists of a transfer conveyor equipped with a magnet roller having stronger magnetism than the conveyor, a pushing device, a positioning device, and a proximity switch, and a round core accumulating device placed below the transfer conveyor. The trap allows the core to sag to the left and right under its own weight, hits a stopper, and guides the core to the chute. Only the round core passes through the trap and is transferred from the transfer conveyor to the transfer conveyor. After that, the core is positioned by the positioning device. This is achieved by a core extracting device for round cores which operates the ejecting device in response to a signal from the proximity switch to eject the round cores from the magnet roller and collect them in the round core accumulating device. Furthermore, the level of the transport conveyor can be adjusted by a vertical operation mechanism consisting of a worm gear and an operation mechanism, and the magnetic roller arranged in the trap is rotatably supported independently of the conveyor drive device. is valid. Furthermore, the ejecting device of the transfer conveyor is equipped with an air cylinder and a core ejecting plate at the tip of the air cylinder to maintain the round core in a horizontal state and eject it vertically downward from the magnet roller. It is valid.

Embodiments of the present invention will be described below based on the drawings. FIG. 4a is a side view of a core extraction device for round cores shown in an embodiment of the present invention, and FIG. 4b is a plan view. In the figure, the conveyor 41 includes a magnetic roller 41 equipped with a sprocket 41a on the end surface.
b, chains 41c, 41d, and a variable speed motor 42, and is provided on a pedestal 44 equipped with a vertical operation mechanism 43 so that the height of the conveyance start position can be adjusted. The variable speed motor 42 is mounted on the conveyor and has a sprocket 42a on the motor shaft, and rotates a specific magnet roller 41b shaft through a chain 41d.
The chain 41c is driven to rotate the magnet roller 41b on the conveyor 41. Further, this conveyor 41 is provided with a trap 41g which is removed from the drive range of the chain 41c during conveyance and is composed of magnet rollers 41e and 41f shorter than the outer diameter of the core being conveyed.
1g is provided with an opening 41h and a scrap abutting stopper 41i, and the scrap abutting stopper 41i
is arranged at a position slightly lower than the upper surface of the magnet roller 41b. 44a and 44b are conveyor supports, which are equipped with pinch rollers 44c and 44d, and support the conveyor 41 by pressing a support plate 41j provided on the lower surface of the conveyor 41 from above and below, and the conveyor support 44a is mounted on the pedestal 44, The conveyor receiver 44b is supported by the vertical operation mechanism 43. The vertical operation mechanism 43 is provided on the pedestal 44 and includes a worm 43a and a worm wheel 43.
A worm wheel 43b and a shaft portion 44c of a conveyor receiver 44b are screwed together, and the conveyor receiver 44b can be moved vertically via the worm wheel 43b by turning the worm 43a by operating a handle 43c. Reference numeral 45 designates a chute, which is disposed below the conveyor 41 and mounted on the pedestal 4 so that the scraps falling from the opening 41h of the conveyor 41 can be guided and stored in the scrap container 45a.
It is attached to 4. The conveyor 46 for transferring the round core 21 includes a magnet roller 46b having a sprocket 46a on the end face, a chain 46c,
46d and a variable speed motor 47, and is disposed above the conveyor 41 in the conveying direction, with a conveyance start position overlapping the front part of the conveyor 41. Transfer conveyor 4
A variable speed motor 47 and a device 48 for ejecting the round core 21 are disposed on the shaft 6. A sprocket 47a is provided on the shaft of the variable speed motor 47, and a shaft of a specific magnet roller 46b is rotated through a chain 46d. The chain 46c is driven so that the magnet roller 46b on the transfer conveyor 46 rotates. The separating device 48 for the round core 21 is an air cylinder with a separating plate 48a provided at the tip of the cylinder, which operates vertically in the vertical direction from the gap between the rollers 46b and 46, and conveys the round core 21 while hanging downward on the transfer conveyor 46. The round core 21 is made to be able to be pushed apart. The positioning device 49 is a transfer conveyor 46
The stopper 49a is positioned at the rear of the handle 49 so that it can stop the round core 21 being conveyed on the conveyor 46.
It can be moved horizontally by operating b. A worm 49c is provided on the handle 49b shaft, a worm wheel 49a engages with the worm 49c, and a stopper 49a shaft is screwed onto the worm wheel 49d shaft.By operating the handle 49b, the worm 49c is rotated, and the worm wheel 4
9d is rotated so that the stopper 49a shaft can be moved. The core integration device 50 is a mandrel 5
The mandrel 50a of the core accumulating device 50 is placed almost directly below the shaft of the cutting cylinder 48 of the core 21 at a position close to the lower surface of the roller 46b on the transfer conveyor 46. There is.

To take out the round core 21 into this core accumulating device 50, the coil material 11 is removed using an automatic press 16 shown in FIG.
The vertical operation mechanism 43 is operated by operating the handle 43c so that the scrap 22 and the punched round core 21 are transported on the transport conveyor 41, and the height of the transport start position of the conveyor 41 is adjusted. . Next, the conveyor 41 and transfer conveyor 46 are operated by the variable speed motors 42 and 47 to adjust the conveyance speed, and then when the automatic press 16 is operated, the scraps 22 and cores 21 are transferred to the conveyor 46. 41 at a substantially constant speed. When the scrap 22 and the round core 21 being conveyed on the conveyor 41 pass over the magnet roller 41e whose width is narrower than the diameter of the round core of the trap 41g on the conveyor 41,
Both ends of the scrap 22 in the longitudinal direction protrude from the magnet roller 41e and sag, and due to the inertia of the scrap being conveyed, the sagging ends forcefully abut against the scrap abutting stopper 41i and open the opening 41h.
fall from A chute 45 receives the falling scraps 22 and guides them to a scrap container 45a for storage. When the round core 21 passes over the magnet roller 41e of the trap 41g, it protrudes from the magnet roller 41e, but even if both ends sag, it is very slight and the scrap abutment stopper 41
The magnetic rollers 41f to 41b do not hit i.
The paper is then transferred to the conveyor 41 and continues to be transported on the conveyor 41. The round core 21 conveyed on the conveyor 41 is transported to a chute 45 disposed on the front end surface of the conveyor 41.
The conveyance is stopped at the edge of the conveyor, and the conveyor is attracted to the magnetic roller 46b of the transfer conveyor 46 disposed above, and is conveyed while being suspended downward. The round core 21 conveyed on the transfer conveyor 46 is transferred to the transfer conveyor 4 by the operation of the air cylinder 48 that separates the round core 21.
The transport stop position of the round core 21 is adjusted by operating the handle 49b so that the round core 21 is pushed away from above and is guided and stacked by the mandrel 50a of the core stacking device 50 with the shaft hole of the round core 21 disposed below. It is stopped on the conveyor 46 by a stopper 49a. A proximity switch 46e is provided on the transfer conveyor 46, and after confirming that there is a round core 21 stopped on the transfer conveyor 46, the round core ejection cylinder 48 is activated to remove the tip of the cylinder. The round core 21 is pushed away from above and below the transfer conveyor 46 by the pushing-off plate 48a. The falling round cores 21 are guided by the mandrel 50a of the core accumulating device 50 in their shaft holes, and are accumulated on the cart 50b. The core accumulating device 50 that has completed accumulating the round cores 21 is pulled out together with the cart 50b and transported to the next process.

As described above, this device separates scrap on a conveyor, transports round cores onto a transfer conveyor, once stops transporting the cores, and then drops the cores horizontally from above to below. It is possible to provide a core extraction device for round cores that can be reliably integrated and improve productivity. In addition, a hole is implanted in the mandrel of the round core accumulating device to match the groove of the core shaft hole, and by providing a condorel rotation mechanism, it is possible to align the grooves of the round cores after core accumulation.

[Brief explanation of drawings]

Figure 1 is a schematic diagram showing the round core production method and the conventional method of scrapping and removing the core.
Figure 2 is a plan view of a round core and scrap produced from coil material, and Figure 3 is a layout diagram of a conventional round core punching press die and conveyor.
4 is a plan view, FIG. 3b is a side view, FIG. 4 is a layout diagram of a round core take-out device according to an embodiment of the present invention, FIG. 4a is a side view, and FIG. 4b is a plan view. 16... Automatic press, 21... Round core, 22... Scrap, 41... Conveyor, 41b, 46b
...Magnetic roller, 41g...Trap, 41h
...opening, 41i...scrap abutment stopper,
42, 47... Variable speed motor, 43... Vertical operation mechanism, 43a, 49c... Worm, 43b, 49d
...Worm wheel, 43c, 49b...Operation handle, 45...Drop chute, 45a...Scrap container, 46...Transfer conveyor, 48...Ejecting device, 49...Core positioning device, 49a...
Stopper, 50... Core accumulating device, 50a... Mandrel, 50b... Cart.

Claims (1)

[Claims] 1. Scrap is separated from round cores and scraps that have been punched out by an automatic press and continuously conveyed horizontally at a substantially constant speed on a conveyor equipped with a magnetic roller, and the round cores are taken out and loaded. The apparatus includes a trap equipped with a magnetic roller having a width narrower than the diameter of the round core and a gap between both sides of the conveyor in the middle of conveyance, and a trap provided in front of the trap from the upper surface of the magnetic roller. A conveyor is provided with a scrap abutment stopper, an opening, and a chute arranged at a slightly lower position, and a magnetic field stronger than that of the conveyor is placed in front of the conveyor in the horizontal direction and upward in the vertical direction. a transfer conveyor having a magnetic roller, a pushing device, a positioning device, and a proximity switch;
It consists of a round core accumulating device placed below the transfer conveyor, and the scrap is allowed to sag to the left and right under its own weight by the trap, hits a stopper, and is guided to the chute, and only the round cores pass through the trap. After the round core is transferred from the transport conveyor to the transfer conveyor, the positioning device positions the round core, and the ejecting device is actuated by the signal from the proximity switch to eject the round core from the magnet roller. A round core take-out device characterized in that the round cores are collected in a core collection device. 2. In the device according to claim 1,
The level of the conveyor can be adjusted using a vertical operation mechanism consisting of a worm gear and an operation mechanism.
A core takeout device for round cores, characterized in that a magnet roller disposed in the trap is rotatably supported independently of a conveyor drive device. 3. In the device according to claim 1,
The pushing-off device for the transfer conveyor is equipped with an air cylinder and a core pushing-off plate at the tip of the air cylinder to keep the round core in a horizontal state and push it vertically downward away from the magnetic roller. Features: Core extraction device for round cores.