JPH049059Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a device for stopping a magazine at a blank supply station in a stack feeder that supplies blanks loaded in the magazine to a press machine, and in particular, The present invention relates to a device in which a plurality of stacked blanks are loaded in a magazine.

[Background technology and its problems] In a stack feeder of a press machine, for example, a magazine loaded with blank stacks circulates through a magazine running path formed in a square shape, and when the magazine stops at a blank supply station, the magazine is The blank is fed into the press machine. If the blank is large, the number of blank stacks loaded in the magazine is one, but if the blank is small, multiple blank stacks are stacked in the magazine in order to increase work efficiency. loaded.

When a plurality of stacked blanks are loaded in a magazine in this way, in order to feed blanks from each stacked blank to the press machine, the magazine must be stopped by aligning each stacked blank with the blank supply station. It will not happen.

In the prior art disclosed in Japanese Utility Model Publication No. 60-108441, the magazine is stopped by aligning the stacked blanks with the blank supply station by the amount of drive of a drive device consisting of a motor, a chain, etc. However, according to this conventional technique, there is a risk that the magazine may run in a hurry due to the inertia of the magazine and the drive device, and the magazine may not stop accurately at a predetermined position.

[Purpose of the invention] The purpose of the invention is to provide a magazine stopping device for a stack feeder that can stop the magazine by accurately aligning each stack of blanks loaded in the magazine with a blank supply station. It's there.

[Means and actions for solving problems]

In order to achieve this objective, the present invention stops a traveling magazine loaded with blank stacks at a blank supply station, and at this station, a stack feeder feeds blanks from the magazine to a press machine. A plurality of stacked blanks can be stacked side by side in the magazine running direction, and the magazine running path includes a stopper means for positioning and stopping the magazine, and detecting the magazine running position to operate the stopper means and stop the drive of the magazine running device. A detection device is provided, and the detection device has at least the same number of detection sections as the plurality of blank stacks and arranged in the magazine running direction, so that the magazine can be connected to each blank stack and the blank supply station. I am trying to match it and stop it.

As described above, in the present invention, in addition to stopping the driving of the magazine traveling device, the magazine is positioned and stopped by operating the stopper means, so that the magazine is accurately stopped at the blank supply station for each stack of blanks. You will be able to do this.

A first detecting means for actuating a stopper means for the detecting device, and a second detecting means for stopping the driving of the magazine traveling device.
Both of these detecting means have the detecting portion, and the magazine is provided with engaging portions such as pins in at least the same number as the number of blank stacks arranged in the magazine running direction, and the stopper means is arranged in the magazine traveling direction. The engaging part has a swingable lever that engages from the front side in the magazine traveling direction, and the lever is activated by a signal from the first detection means before the engaging part that the lever engages reaches the position of the lever. After that, as the magazine travels, the engaging portion is engaged with the lever, and the driving of the magazine traveling device is stopped by a signal from the second detection means.

According to this, the engaging part moves as the magazine travels toward the lever that has been swung in advance to enable engagement with the engaging part, and the magazine is moved by the engagement between the engaging part and the lever. Since the magazine is stopped at a certain position, the magazine can be stopped at an accurate position.

When the number of blank stacks loaded in the magazine is changed, the number of the detection parts and the engaging parts of the first detection means and the second detection means is set to be the same as the maximum number of blank stacks. The arrangement position of the engaging part is set to a position corresponding to the stacking position of the blank stack, and the interval between the detecting parts of the first detecting means and the second detecting means is set to be the same as the interval between the engaging parts.

According to this, when changing the number of blank laminates, the detection parts of the first detection means, the second detection means,
A part of the engaging portion can be used redundantly, and the member can be used for multiple purposes.

〔Example〕

FIG. 1 is a view of the disk feeder seen from the side of the press machine, and FIG. 2 is a plan view thereof. As shown in FIG. 2, the stack feeder is provided with stations A to F in a square shape, and the magazine M moves through the stations A, B, C, D, E, and F in this order. The stack feeder is equipped with three magazines M, and the station A is a blank loading station for loading the blank stack 2 shown in FIG. A large number of blanks 1 are stacked on top of each other, and the sides are held by supports 3.
Station D is blank 1 of blank laminate 2.
This is a blank feeding station for feeding blanks from the top to the press machine 4 shown in FIG.

As shown in FIGS. 3 to 5, the magazine M has a wheel 6 attached to the lower surface of a plate-shaped main body 5 via a wheel holding member 7, and a pin holding member 9 is attached to the lower surface of the main body 5. A pin 8 is fixed thereto, and a rack member 10 is also fixed thereon. pin 8
are 3 pieces 8A, 8B, at equal intervals in the magazine running direction.
8C, and the rack member 10 extends in the magazine running direction. A large hole 11 is formed in the center of the main body 5,
Elongated small holes 12 are formed on both sides of the magazine in the magazine running direction.

As is clear from FIG. 1, the rails 13 constituting the magazine running path of station A shown in FIG.
As shown in the diagram, there is a magazine M on the tip side of station A.
A stopper means 14 is provided for stopping the station A at the station A. This stopper means 14 has a structure in which a lever 15 swings in a cylinder 17 about a shaft 16.

A first cart 19 is arranged between stations B and C so as to be able to reciprocate along a rail 18.
A rail 20 is provided which becomes connected to the rail 13 of station A when the station A reaches the station A, and the magazine M reaches the station B by being transferred from the rail 13 to the rail 20. A stop member 21 for stopping the magazine M is provided at the end of the station B.

At the end of the first truck 19 on the station A side, there is a backstop means 22 for preventing the magazine M from retreating.
As shown in FIG. 6, this backstop means 22 is provided with a stopper pin 24 which is urged upwardly by a spring 25 and is movable up and down on the upper part of a shaft body 23, and the upper surface of the stopper pin 24 is attached to the station A. Since the magazine M is sloped downward to the side, the magazine M is allowed to travel from station A to station B, but is prevented from traveling to the opposite side.
A roller 2 is attached to the lower part of the shaft body 23 via an arm 27.
8 is attached, and this roller 28 is connected to the rail 18
comes into contact with a cam 29 provided on the side surface of the cam 29. Shaft body 2
3 is given a downward biasing force by a spring 26, so that the roller 28 is always in contact with the cam 29, but as shown in FIG. 2, the cam 29 extends to the station C and its tip is cut diagonally downward. Therefore, when the first cart 19 reaches the station C, the roller 28 is released from contact with the cam 29. As shown in FIG. 6, a locking member 30A at the lower end of the shaft 30 whose upper end is connected to the stopper pin 24 is locked to the lower surface of the arm 27, so that when the contact between the roller 28 and the cam 29 is released, spring 26
The stopper pin 24 is also pushed down by the shaft 23, arm 27, and shaft 30 that are pushed down.
As a result, the magazine M placed on the first cart 19 and reaching the station C becomes ready to travel toward the station D side.

As shown in FIG. 2, a motor 31 is installed between stations B and C, and a pinion 32 is fixed to the output shaft of this motor 31. As shown in FIG. 6, a rack member 36 is connected to a wheel holding member 34 to which one of the left and right wheels 33 of the first truck 19 is attached via a connecting member 35, and a rack member 36 is connected to the wheel holding member 34 to which one of the left and right wheels 33 of the first truck 19 is attached. This rack member 36 meshes with the pinion 32, and the motor 31 rotates forward and backward, so that the wheels 33 of the first truck 19 are aligned with the rail 1.
8 to reciprocate between stations B and C.

The first truck 19 is provided with a pinion 37, which is connected to the rack member 1 of the magazine M.
meshes with 0. As shown in Figure 2, the pinion 37 is connected to the shaft 3.
It is connected to the clutch half body 39 via 8,
The clutch half 39 has a protrusion 39A. The clutch half 39 forms a pair with a clutch half 40 disposed on the station C side, and the clutch half 40 has a recess 40A into which the protrusion 39A fits. Both clutch halves 39 and 40 constitute a clutch means 41, and as shown in FIG.
When the sprocket 44, which is fitted together and thus connected to the shaft 42, is rotated, the clutch half 40 rotates together with the sprocket 43. The spring force of a spring 45 interposed between the clutch half body 40 and the sprocket 43 acts on the clutch half body 40.
0 is always biased toward the clutch half body 39 side.

As shown in Figure 2, the motor 46 is attached to the sprocket 44.
A chain 47 extending from the station D meshes with the sprocket 43, and a sprocket 49 disposed at the station D is connected to the sprocket 43 via a chain 48. A sprocket 51 and a pinion 52 are provided on the shaft 50 of the sprocket 49, a sprocket 54 disposed between stations D and E is connected to the sprocket 51 via a chain 53, and a pinion 56 is provided on the shaft 55 of the sprocket 54. is provided.

The above rack member 10, pinion 37, clutch means 41, motor 46, pinions 52, 56, etc. constitute a magazine traveling device 57 for traveling the magazine M from station C to station E. As shown in Figure 7, station D has magazine M.
A stopper means 58 is arranged for positioning and stopping the station D at the station D.
Reference numeral 8 denotes a lever 5 that engages with the pin 8 of the magazine M.
9 and a cylinder 61 for swinging the lever 59 about a shaft 60.

As shown in FIG. 2, a first detection means 62 and a second detection means 63, which constitute a detection device for detecting the traveling position of the magazine M, are arranged at the station D.
These first detection means 62 and second detection means 63 are three detection parts 62A and 62, both of which are optical sensors.
These detectors are connected to the rail 6 at station D.
They are arranged at the same intervals as the pins 8A, 8B, and 8C of the magazine M in the extending direction of the magazine M, that is, the magazine running direction. The first detection means 62 detects the tip of the main body 5 of the magazine M and operates the stopper means 58, and the second detection means 63 detects the tip of the pin holding member 9 of the magazine M and operates the stopper means 58. This is to stop the driving of the traveling device 57.

Side brake means 6 are provided on both sides of the rail 64.
Brake members 66 and 67 constituting station D
A braking force is applied to the magazine M entering the magazine M.

As shown in FIG. 7, a roller 69 is rotatably attached to the upper end of a column 68 that supports the pinion 56, and when the magazine M travels from station D to E, the roller 69 is attached to the lower surface of the main body 5 of the magazine M. We're starting to come into contact.

As shown in FIG. 2, a second cart 70 is disposed between stations E and F so as to be able to reciprocate along a rail 71, and as shown in FIG. A frame body 76 having a rectangular plane is provided on the upper part of a bogie main body 75 which is composed of wheel holding members 73 and a connecting member 74 that connects these wheel holding members 73, and the rails 71 of this frame body 76 The two orthogonal members are rails 77, and when the second carriage 70 reaches the station E, the rails 77 are connected to the rails 64 forming the magazine running path of the station D.

The frame body 76 is connected to the bogie body 75 via links 78 and 79 provided two on each side of the frame body 76, and the frame body 75, the frame body 76 and the links 78,
The connection with 79 is made by rotatable shafts 80-83. The links 78 and 79 can swing left and right in FIG. 8 about shafts 80 and 82, and when the links 78 and 79 swing to the left under the weight of the frame 76 as shown in FIG. The rail 77 is supported in contact with the upper surface 73A of the wheel holding member 73, and at this time, the rail 77 is inclined downward with respect to the traveling direction of the magazine M traveling from the station D to the station E due to the unequal length links 78 and 79. On the other hand, when the links 78 and 79 swing to the right about the shafts 80 and 82 and stand substantially upright, the rail 77 inclines in the opposite direction.

As shown in FIG. 2, a stop member 84 is provided at the end of the station E, and this stop member 84 moves from the rail 64 of the station D to the rail 7 of the second truck 70.
This is to stop the magazine M loaded on station E at station E.

A motor 85 is disposed between stations E and F, and a pinion 86 fixed to the output shaft of the motor 85 meshes with a rack member 87 attached to the truck body 75 of the second truck 70. Since the rack member 87 extends in the direction of the stations E and F,
The second cart 70 is rotated by the forward and reverse rotation of the motor 85.
moves back and forth between stations E and F. 8th
As shown in the figure, a roller 88 is rotatably attached to the station D and A side ends of the rail 77 of the frame body 76, and this roller 88 moves from the rail 77 of the second cart 70 that has reached the station F to the station A as described later. This is to allow the magazine M to be smoothly transferred onto the rail 13 of the.

As shown in FIG. 2, a lift means 89 is disposed on the side of the station F where the second carriage 70 is stopped. 9 and 10 show this lifting means 89. FIG. A cylinder 91 is installed facing upward between the two side wall members 90, and a connecting member 93 is connected to the piston rod 91A of this cylinder 91 via a joint 92.
are connected to each other, and a plate-shaped lifting member 94 is connected to both ends of the connecting member 93. Since the elevating member 94 is provided with a roller 96 that fits into the vertical guide groove 95A of the guide member 95 attached to the side wall member 90, the elevating member 94 is guided by the guide member 95 by the expansion and contraction movement of the cylinder 91. It moves up and down while being touched. As shown in FIG. 9, the elevating member 94 has an arm portion 94A extending toward the station A, and when the elevating member 94 rises, a roller 97 attached to the tip of the arm portion 94A moves the rear part of the frame 76 of the second truck 70. is pushed up, and the links 78,
79 is adapted to swing to the right in FIGS. 8 and 9 about shafts 80 and 82.

As shown in FIGS. 2 and 7, a lift device 98 for pushing up the blank stack 2 from the magazine M is arranged below the station D. It has a head 100. The main head 99 consists of a large head 99A and a small head 99B inside the large head 99A.

FIG. 12 shows the specific structure of the lift device 98, in which a small head 99 is attached to the top of the main rod 102 connected to the piston rod 101A of the cylinder 101.
B is fixed. A projecting member 103 is attached to the main rod 102 at the lower part of the small head 99B, and this projecting member 103 has an oval shape in plan view as shown in FIGS. 13 and 14. A rectangular hole 104 is formed in the center of the large head 99A.
The length of one side of 04 is the arcuate portion 10 of the projection member 103.
3A, and the length of the other side of the hole 104 is longer than the length including the arcuate portion 103A of the projection member 103. As shown in FIG. 12, a gear 105 is fixed to the lower surface of the large head 99A, and a gear 107 fixed to the output shaft of a motor 106 meshes with this gear 105, causing the motor 106 to rotate forward and backward. The large head 99A rotates 90 degrees as shown in FIGS. 13 and 14. When the state shown in FIG. 13 is reached, the large head 99A is engaged with the small head 99B, and when the cylinder 101 is extended and operated, the large head 99A rises together with the small head 99B, and the first
4, the large head 99A is disengaged from the small head 99B, and the cylinder 101
Due to the extension operation, only the small head 99B rises. The gears 105, 107, etc. described above constitute a large/small head engaging/disengaging means 108 for engaging and disengaging the large/small heads 99A, 99B.

As shown in Fig. 12, the main rod 102 has a bolt 10.
A connecting member 110 is connected at 9, and this connecting member 1
A sub rod 111 having the sub head 100 attached to the top thereof is connected to the head 10 via a head selection means 112. The head selection means 112 is the cylinder 1
As shown in FIG. 15, the slider 114, which horizontally slides along the groove 115A of the guide member 115, has a small circular hole 116 and a large circular hole 117 through which the sub rod 111 passes vertically. are formed in a continuous state, and the small circular hole 116 is connected to the sub rod 1.
The large circular hole 117 is smaller than the ring-shaped projection 111A of No. 11, and the large circular hole 117 is larger than the ring-shaped projection 111A.
When the sub rod 111 is fitted into the small circular hole 116, the sub rod 111 and the connecting member 110 are connected via the slider 114, and when the sub rod 111 is fitted into the large circular hole 117, the slider 1
The connection between the sub rod 111 and the connecting member 110 by the cylinder 113 is released, and both the main head 99 and the sub head 100 rise due to the movement position of the slider 114 by the cylinder 113.
It is now possible to select a case where only 9 rises or a case where only 9 rises.

As shown in FIGS. 1 and 7, above stations C to E are rails 11 supported horizontally by supports 118.
9 is provided, and a base 12 is mounted on this rail 119.
0 is placed movably. A holding tool 121 and a magnetic separator 122 for the blank 1 are attached to the base stand 120, and the holding tool 121 retreats when the blank stack 2 is pushed up from the magazine M by the lift device 98 and the blank 1 rises. When blank 1 passes, move forward and blank 1
hold. The magnetic separator 122 is the hold tool 1
The upper and lower blanks 1 that have passed through 21 are separated by magnetic force. The base stand 120 is 2
One base 120 is station D.
When in use, the other base 120, which has been returned to the retracted position, has a holding tool 121 and a magnetic type at a position corresponding to the shape, size, etc. of the blank to be used for the next press operation. Work is performed to attach the separator 122, and setup work for the next press work is performed during the press work.

As shown in FIG. 1, a pick-up means 124 equipped with a vacuum cup 123 is provided directly above the station D, and is movable up and down.
Place the blank 1 from the base 120 into the vacuum cup 1.
23 to pick up the blank 1 and supply it to the press machine 4, which is a transfer press machine.

Next, we will discuss the effect.

At the station A, the magazine M is stopped by being stopped by the lever 15 of the stopper means 14, and while the magazine M is stopped in this way, the blank stack 2 is loaded onto the magazine M by a crane or the like (not shown). . After the loading work of the blank laminate 2 is completed, the lever 15 is operated by the control device.
is swung by a cylinder 17, thereby causing the magazine M to self-propel by its own weight along a rail 13 that is inclined downward toward the station B side. At this time, the first truck 19 has reached the station B, and the magazine M is transferred from the rail 13 to the rail 20 of the first truck 19 while pushing down the stop pin 24 of the backstop means 22.

The magazine M placed on the rail 20 of the first truck 19 is stopped when its tip abuts against the stop member 21, and at this time the rack member 10 is engaged with the pinion 37. Magazine M is on the first trolley 19
When it is detected by the detector 125 shown in FIG. The lever 15 is returned to its original state by the cylinder 17.

While the first truck 19 is traveling toward the station C, the magazine M is prevented from moving backward by the backstop means 22, and from moving forward by the stopper member 20A at the tip of the rail 20.
is sent to station C without falling off the first cart 19.

When the first carriage 19 reaches the station C, the contact between the roller 28 of the backstop means 22 and the cam 29 is released as described above, allowing the magazine M to travel toward the station D side, and the first carriage 19 The clutch half 39 is the clutch half 4
0, the protrusion 39A and recess 40A of these clutch halves 39 and 40 fit together, and the clutch means 41 becomes connected. When the clutch half body 39 comes into contact with the clutch half body 40, the convex portion 39A and the concave portion 4
Even if 0A is not fitted immediately, the clutch half 40 is fitted to the spline shaft portion 42A of the shaft 42 while being constantly biased by the spring 45 as shown in FIG. After the clutch half body 40 has retreated in the axial direction, when the clutch half body 40 is rotated by the motor 46 as described later, the convex portion 3
9A and the recess 40A are aligned, the clutch half 40 is moved forward by the spring 45 and the clutch means 41 is connected.

The magazine M waits while being placed on the first cart 19 at the station C until all the blanks from the preceding magazine are supplied to the press machine 4 at the station D. When all the blanks from the preceding magazine are supplied to the press machine, the motor 46 is rotated by operation of the control device, and the magazine traveling device 57 starts to be driven. That is, the chain 47 and sprockets 44, 4 are driven by the motor 46.
3. The chain 48, sprockets 49, 51, chain 53, and sprocket 54 are driven, and the leading magazine M of the station D is sent out to the station E side by the rotating pinions 52, 56, and the driving force of the motor 46 is transferred to the clutch means. 41 to the pinion 37 of the first truck 19, the magazine M having the rack member 10 that meshes with this pinion 37 starts traveling toward the station D, and the magazine M is transmitted to the pinion 37 of the first truck 19
The rack member 10 of the magazine M is transferred from the rail 20 of the magazine M to the rail 64 of the station D.
meshes with the pinion 52.

The magazine M receives the braking force of the handbrake means 65 while traveling along the rail 64, and is also braked by the first detection means 62 and the second detection means 63 of the detection device arranged on the magazine running path constituted by the rail 64. When the magazine traveling position is detected, the stopper means 58 is activated and the magazine traveling device 57 is stopped.

To explain this specifically, when one blank stack 2 is loaded in the magazine M as shown in FIG.
Among 2A to 2C, the central detection section 62B is the magazine M.
detects the tip of the main body 5, and in response to this detection signal, the lever 59 is activated by the cylinder 61 of the stopper means 58.
is forced to swing upward. At this time, the central pin 8B of the three pins 8A to C of the magazine M, which serve as the engaging portion with which the lever 59 engages, has not reached the position of the lever 59, and the lever 59 has the pin 8B on the lever. Pin 8B before reaching position 59
It becomes possible to engage with. After this, the magazine traveling device 57 continues to drive the pin 8.
B engages with a lever 59, and the magazine M is positioned at the station D by the lever 59 that engages with the pin 8B from the front side in the magazine running direction. At this time, the three detection units 63A to 63A of the second detection means 63
The central detection section 63B of the magazine M detects the tip of the pin holding member 9 of the magazine M, and the motor 46 of the magazine traveling device 57 is stopped based on this detection signal. Therefore, the magazine M is accurately positioned and stopped at the station D by the operation of the stopper means 58 and the drive stop of the magazine traveling device 57.

Next, the blank stack 2 of the magazine M is lifted up to the base 120 by the lift device 98.
At this time, the positional relationship of the large head 99A with respect to the small head 99B of the lift device 98 is as shown in FIG. 13, and the positional relationship of the slider 114 with respect to the sub rod 111 is as shown in FIG. 101 is extended and actuated, the small head 99B, large head 99A, and sub-head 100 rise together, and these heads pass through the large hole 11 and small hole 12 of the magazine M to release the blank 1 having a large area. Blank laminate 2 consisting of
definitely push up. The plurality of blanks 1 on the upper part of the pushed-up blank stack 2 are placed on the base stand 12
0 through the holding device 121 and the magnetic separator 1
22 into upper and lower parts, the uppermost blank 1 is sucked by a vacuum cup 123 of a pick-up means 124, and supplied to a press machine 4. Base stand 1
Each time a blank 1 is supplied from the magazine M, the lift device 98 pushes the blank up from the magazine M onto the base stand 120.

As described above, the magazine M by the lift device 98
While the blank stack 2 is being pushed up, the first cart 19 is driven by the motor 31 and returned to the station B, where it waits for the next magazine to arrive.

In the above, since the front and rear directions of the magazines M at the stations A and D do not change, the blank loading work and the pressing work described above are facilitated.

As shown in FIG. 16, when two blank stacks 2 are loaded in the magazine M in a line-up in the magazine running direction, when the magazine M runs toward the station D, the first detection means 62
The detection section 62C detects the tip of the main body 5 of the magazine M and swings the lever 59 of the stopper means 68. After this, the pin 8A engages with the lever 59, and the detection section 63C of the second detection means 63 swings. When detecting the tip of the pin holding member 9, the driving of the magazine traveling device 57 is stopped. At this time, the blank stack 2A on the front side (left side in FIG. 16) coincides with the station D, and the magazine M is stopped. Next, the lift device 98 begins to push up the blank stack 2A, but at this time, the large and small head engaging/disengaging means 108 of the lift device 98 has established the positional relationship of the large head 99A with respect to the small head 99B as shown in FIG. Since the slider 14 is slid by the head selection means 112 and the sub rod 101 is fitted into the large circular hole 117 in FIG. 15, when the cylinder 101 is extended and operated, only the small head 99B rises and The small head 99B passes through the small hole 12 of the magazine M to produce a blank stack 2 consisting of blanks having a small area.
Push up A.

When the blank of the blank laminate 2A runs out,
The magazine traveling device 57 is driven again and the magazine M
runs, the tip of the main body 5 of the magazine M is detected by the detection section 62A of the first detection means 62, and the tip of the pin holding member 9 is detected by the detection section 63 of the second detection means 63.
By being detected at A, the magazine M is stopped at a position where the rear blank stack 2B coincides with the station D by engagement between the lever 59 and the pin 8C. As before, this rear blank stack 2B is placed in the small head 99B of the lift device 98.
is pushed up.

FIG. 17 shows a case where three blank stacks 2 are loaded in the magazine M in a line in the blank traveling direction. In this case, the detection section 62C of the first detection means 62, the detection section 63C of the second detection means 63, and the pin 8A are used to align the front blank stack 2A with the station D and stop the magazine M. , the detection part 62B of the first detection means 62, the detection part 63B of the second detection means 63, and the pin 8B are used to align the center blank stack 2B and the station D and stop the magazine M. The detection section 62A of the first detection means 62, the detection section 63A of the second detection means 63, and the pin 8C are used to align the blank stack 2C with the station D and stop the magazine M.

As mentioned above, in order to freely change the number of blank stacked bodies 2 loaded in the magazine M, the number of each detection section of the first detection means 62 and the second detection means 63,
The number of pins 8 in the magazine M is the same as the maximum number of stacked blanks 2, the position of each pin 8 is set to correspond to the loading position of the stacked blanks, and the pins 8 are placed at the same intervals as the spacing between these pins 8. By arranging each detection section of the first detection means 62 and the second detection means 63 in the magazine running path, the blank stack 2
When changing the number of pins and detection parts, some of these pins and detection parts can be used redundantly, making it possible to realize dual use of members.

In addition, the pin holding member 9 is used not only as a member for providing the pin 8 in the magazine M, but also as a member for causing the second detection means 63 to detect the magazine travel position, so in this respect as well, the pin holding member 9 is used as a member for providing the pin 8 in the magazine M. Dual use has been achieved.

When the work of supplying blanks from the magazine M to the press machine 4 at the station D is completed, the motor 46 of the magazine traveling device 57 is driven by the operation of the control device, and the pinions 52 and 56 are rotated. The magazine M is connected from the pinion 52 to the rack member 1.
As the driving force of the motor 46 is transmitted to the rack member 10, the rack member 10 travels toward the station E side, and the rack member 10 meshes with the pinion 56. At this time, the first carriage 70 has reached the station E, and therefore the magazine M is transferred from the rail 64 to the rail 77 of the second carriage 70.
transferred to.

At this time, as shown in FIG. 8, the links 78 and 79 of the second truck 70 are in a state of being swung to the left by the weight of the frame 76, so the rail 77 is tilted downward toward the magazine running side, so that the rail 77 is not resting on the rail 77. Even after the magazine M is disengaged from the rack member 10 and the pinion 56, it continues to run until its tip abuts against the stop member 84 shown in FIG. Note that even if the rail 77 on which the magazine M is transferred is inclined downward as described above, the roller 69 shown in FIG. 7 contacts the lower surface of the main body 5 of the magazine M to support the magazine M. This can prevent the pinion 56 from being deeply engaged.

When the magazine M is transferred onto the rail 77 of the second truck 70 and reaches the station E, this is detected by the detector 126 shown in FIG. Detector 126
The motor 46 is stopped by a signal from the station F, and the motor 85 is driven, so that the second cart 70 moves toward the station F side. During this time, the magazine M is prevented from moving forward by the stopper member 77A at the tip of the rail 77, and from moving backward by the inclination of the rail 77, thereby preventing the magazine M from falling off the second truck 70.

When the second cart 70 reaches the station F, the cylinder 91 of the lift means 89 is activated to extend, and the arm portion 9 of the elevating member 94 rises as shown by the chain line in FIG.
The roller 97 provided at 4A is connected to the frame 7 of the second truck 70.
Push up the rear part of 6, which causes links 78, 7
9 swings around shafts 80 and 82 to tilt the rail 77 downward toward the station A side.

As a result, as shown in FIG. 1, the rail 77 has the same inclination angle as the rail 13 of station A and is connected to this rail 13, and the magazine M travels under its own weight and is transferred to the rail 13. Note that even if the magazine M starts running before the rail 77 is connected to the rail 13, that is, when there is a gap between the rail 77 and the rail 13, the wheel holding member 7 is attached to the roller 88 provided at the tip of the rail 77. The wheels 6 of the magazine M are connected to the rails 77 and 13 so that
The magazine M does not fall into the gap between the two, and the magazine M is smoothly transferred onto the rail 13.

The magazine M that has been placed on the rail 13 moves by itself due to its own weight and is pushed to the lever 1 of the stopper means 14.
5 until the tip is locked. On the other hand, in the lift means 89, the cylinder 91 is operated to contract, and the second cart 70 is returned to the station E by the drive of the motor 85. The blank stack 2 is loaded on the magazine M stopped at the station A by the lever 15 of the stop means 14 in the same manner as described above, and the same operation as described above is repeated in the same manner.

In the present embodiment described above, the press machine 4 was a transfer press machine, but in the present invention, the press machine 4
It can also be applied when the machine is a normal press machine.

Furthermore, although the magazine traveling device 57 is made up of a sprocket and a chain, this device may be made of, for example, a cylinder, a belt, or a pulley, and its structure is arbitrary.

The lift device 98 is composed of a main head 99 and a sub-head 100, and the main head 99 is composed of a large head 99A and a small head 99B. Although the head can be selected accordingly, the same head may be used to push up the blank stacks 2 even if the number of blank stacks 2 is changed. However, with the configuration of this embodiment, it becomes possible to appropriately select and use the head according to the area of the blank 1, and the work of pushing up the blank stack 2 can be carried out reliably.

Furthermore, in this embodiment, the magazine M is provided with wheels 6 to allow the magazine M to run along the rail, but the magazine path is a conveyor system in which rotatable rollers are lined up, and the magazine is run on this conveyor. The present invention can also be applied to such cases.

Further, the operation of the stopper means for positioning and stopping the magazine M at the blank supply station and the driving stop of the magazine traveling device are performed by a signal from the detection section of the same detection device, and the stopper means is used to clamp or press a part of the magazine. It is also possible to have a structure that

[Effect of idea]

According to the present invention, in addition to stopping the drive of the magazine traveling device, the magazine is positioned and stopped by operating the stopper means, so that the magazine can be accurately stopped at the blank supply station for each stack of blanks. It becomes like this.

[Brief explanation of the drawing]

Figure 1 is a view of the disk stack feeder seen from the side of the press machine, Figure 2 is a plan view of the disk feeder, Figure 3 is a plan view of the magazine, and Figure 4 is the same as Figure 3. - Line sectional view, Figure 5 is the same as Figure 3 -
6 is a sectional view taken along the - line in FIG. 2, FIG. 7 is a sectional view taken along the - line in FIG. 2, FIG. 8 is a sectional view taken along the - line in FIG. Figure 10 is a cross-sectional view taken along the line -1 in Figure 9.
1 is a diagram showing a state in which the clutch means shown in FIG. 2 is connected, FIG. 12 is a partially sectional front view showing the structure of the lift device, and FIG. 13 is a sectional view taken along the line -- in FIG. 12. Figure 14 shows the lift device in the 14th position.
Diagram 15 showing when the state is different from that shown in the diagram.
The figure is a sectional view taken along the line -- in FIG. 12, and FIGS. 16 and 17 are sectional views showing a state in which a plurality of stacked blanks are loaded in the magazine. 1...Blank, 2...Blank laminate, 4...
...Press machine, 8...Pin which is an engaging part, 19...
...First truck, 22...Backstop means, 41
...Clutch means, 57...Magazine traveling device,
58... Stopper means, 59... Lever, 62...
...First detection means, 63... Second detection means, 70...
...Second truck, 89...Lift means, 98...Lift device, M...Magazine, A...Blank loading station, D...Blank supply station.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) In a stack feeder in which a magazine loaded with blank stacks is disposed in a movable manner, the magazine is stopped at a blank supply station, and the blanks are fed to a press machine. The magazine is capable of stacking a plurality of blank stacks in a magazine running direction, and a stopper means for positioning and stopping the magazine on a magazine running path is provided, and the stopper means is actuated by detecting the magazine running position on the magazine running path. Further, a detection device for stopping the drive of the magazine traveling device is provided, and this detection device has at least the same number of detection portions as the plurality of blank stacks and arranged in the magazine traveling direction, so that the magazines are separated from each other. A magazine stopping device for a disk feeder, characterized in that the stacked blanks and the blank feeding station are brought into alignment and stopped. (2) Utility Model Registration Scope of Claim 1 In claim 1, the detection device includes a first detection device that operates the stopper device and a second detection device that stops the drive of the magazine traveling device, and these detection devices both have the detection section, the magazine is provided with at least the same number of engagement sections as the plurality of blank stacks arranged in the magazine running direction, and the stopper means is attached to the engagement section on the front side in the magazine running direction. The lever has a swingable lever that engages with the lever, and this lever swings in response to a signal from the first detection means before the engaging part that engages the lever reaches the lever position, and the lever swings to engage with the engaging part. A magazine stopping device for a stack feeder, characterized in that the engaging portion is engaged with the lever and the drive of the magazine traveling device is stopped in response to a signal from a second detecting means. (3) Utility model registration In claim 2, the number of blank stacks loaded in the magazine is changeable, and the detection portion and the engagement portion of the first detection means and the second detection means are The number of blank stacks is the same as the maximum number of blank stacks, the position of the engaging portion is set to correspond to the stacking position of the blank stack, and the distance between the detection units of the first detection means and the second detection unit is A magazine stopping device for a disk feeder, characterized in that the spacing between the engaging portions is the same as the spacing between the engaging portions.