JPS62151230A - Metallic die replacing and containing device in press machine - Google Patents

Abstract

PURPOSE:To transfer smoothly a metallic die among a press machine, a lifting device, and each containing shelf, and to replace the metallic die in a short time, by providing a metallic die lifting device, and a metallic die containing shelf of plural stages in the vicinity of a press machine, and providing a lift part carrying device, and a shelf part carrying device, on the lifting device and the containing shelf, respectively. CONSTITUTION:A lifting device 6 provided with a lifting table 11 which can ascend and descend is provided in the vicinity of a press machine 1, and a containing shed 101 having a containing shelf 103 of plural stages for containing a metallic die is provided on one side or both sides of the lifting device 6. Subsequently, a lift part carrying device 19 provided with a hook part so that it can execute a reciprocating motion to the press machine 1 is provided on the lifting table 11. Also, a shelf part carrying device 119 provided with a hook part 141 so that it can execute a reciprocating motion to the lifting table 11 is provided on each containing shelf 103. Also, this constitution is provided with a stopper part on a prescribed position of the lifting table 11 and each containing shelf.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) This invention relates to a mold exchange storage device in a press machine.
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(Prior Art) Conventionally, when replacing molds in this type of press machine, a crane or the like is used to replace the molds, and the molds are stored in a hangar separate from the press machine and located a distance away.

(Problems to be solved by the invention) However, in recent years, 'i-press machines have become larger, the molds used have also become larger, and there has been a tendency for pressed products to be produced in large quantities in small quantities per second. For this reason, having a mold hangar at a location separate from the conventional press machine has the problem of increasing the time required to replace molds and lowering production efficiency.

(Means for Solving the Problems) The present invention has been made to solve the above-mentioned problems of the conventional technology.The present invention has been made in order to solve the above-mentioned problems of the conventional technology. The primary purpose of this invention is to provide a device for exchanging and storing gold in a press machine, which can automatically perform delivery and shorten the time required to exchange the mold, and can safely store the mold. [11 lowering device with a lifting table that can be lowered near the press machine, and a storage with multiple tiers of storage shelves for storing molds on one or both sides of this 4 o'clock device. A lifting table is provided with a lift unit 112 feeding device provided with a hook portion so as to be reciprocally movable toward the press machine, and each storage shelf of the hangar is provided with a lift unit 112 that is provided with a hook portion so as to be movable back and forth toward the press machine. A shelf conveying device is provided with a hook part that can be reciprocated, and each hook part is provided with a pushing bar for pushing the mold and a retracting hook for unclamping and clamping the fijlfL type. 1) A reel clamp device for operating the retraction hook to the unclamp/clamp position 1a is provided on the rear side of the rear portion of the rift conveying device, and on the front side of each of the shelf conveying devices. The retracting hook is set to the unclamping/clamping position; the unclamping amount operated at step d is set to step 1, and stoppers are installed at predetermined positions of the elevating table and each storage shelf, and further,
The second purpose is to connect the hydraulic circuit of the mold exchange storage device to the hydraulic circuit of the press machine, and use the operating force of the press machine to provide the required hydraulic power to the mold exchange storage device, which has a large hydraulic power. The object of the present invention is to provide a mold exchange storage device for a press machine that can save energy by storing pressure in a pressure accumulator.

(Embodiment) Next, an embodiment of the present invention will be described according to the drawings. In the figure, 1 is a press machine. On one side of the press machine 1, there is a bed 2 and a mold 185 for replacement. A transfer table 3 is provided, and a guide rail for a bolster 4 is provided on one of the transfer tables 3, and a mold exchange F8 storage device 5 is arranged in parallel via this transfer table 3. .

Reference numeral 5 denotes the above-mentioned mold exchange/storage device (hereinafter simply referred to as the exchange device), and the exchange device 5 is located on both sides of the yI unloading device 6 and the unloading device if 6, which are disposed close to the transfer table 3. Storage shelves 103 with multiple stages (three stages are illustrated in this example)
It consists of a hangar 101 with a

What about 7? A hydraulic cylinder for the gastric tube of the IVT device 6,
There is a pit recessed in the floor surface shown in the center of the cylinder frame \8 installed on the base side between the corresponding four-piece racks 102 of the left and right hangars 101. -9 is vertically housed and removed, and the light width 1 of the rod 10 of the hydraulic cylinder 7 has a pedal force shape. /The descending daple 11 is attached. A guide 1n13 is attached to each corner of this elevating table 11, which is fitted onto a guide rod 12 installed vertically along the pillar 102 of the hangar 101, and the rod 10 expands and contracts to hold and guide the lending table 11 horizontally. is configured to do so. Furthermore, a relief recess 14 is provided in the surface of the table 11 facing the hangar 101 as shown in the figure.

Also, a plurality of rollers 16 are moved from the top surface of the table 11 by hydraulic pressure at predetermined intervals (an interval at which the mold 185 can be placed) around the center J/l2c1.02 of the table 11.
Hydraulic die lifter 1 that can float approximately 2N
5 is disposed in a buried manner, and 1. A rear buffer roller 17 is provided, and the roller 18 is formed to have the same diameter when the roller 16 of the die lifter 15 is activated and floated. J
Additionally, a lift section conveying device 19 is disposed on the table 11 along the center line C1.

This lift part conveyance device 19 is a device for drawing the mold from the press machine 1 and pushing the mold to the press machine,
Guide part 20, drive part 21 and hook part 41
It's been drained.

Reference numeral 20 denotes the above-mentioned guide portion, which is arranged flat (32) at predetermined intervals centering on the center line C1.
0 is formed symmetrically, so to explain one guide part 20, 21 is a bracket 1-, and 21 is a bracket 1- that is placed at multiple locations (in this example, 3 locations δp) at predetermined intervals on the same installation path.
A reinforcing member 22 having a substantially C-shaped surface is provided oppositely between the brackets 1 and 21.
At the same time, on the upper surface of both reinforcing part shrines 22, an approximately J-shaped idle rail 23 is provided with its guide rails 24 facing each other. Further, a thin channel par 25 is disposed on the lower surface side of the reinforcing n1 material 22 with its groove portion 26 facing each other. The right side (opposite side of the press machine 1) of the guide part 20 arranged in this way is installed to extend from the end of the table 11, and the guide part 20 is installed in an overhanging manner via a bracket at the same end. A portion 2γ is provided.

28 is a frame of the drive unit 21, and the side wall 28 of the peripheral frame 28
A hydraulic motor 29 is attached to a, and this hydraulic motor 2
A small gear 31 is keyed on the rotating shaft 30 of 9.

Further, an intermediate shaft 32 is rotatably supported between the side wall 28a and the corresponding side wall 28b, and a gear 33 and a gear 34 that mesh with the small gear 31 are keyed to the intermediate shaft 32, and the side A drive shaft 35 is rotatably supported between 128b and the corresponding side 28c, and the same shaft 35 has l! A drive gear 36 that meshes with the width 34 is mounted. Also,
This drive shaft 35 extends laterally from the side walls 28b and 28c, and has drive chain wheels 31 keyed at both ends thereof in alignment with the center of the guide section 20. (Press machine 7 side) is provided with a take-up mechanism 38 which rotatably supports a driving chain wheel 37 and a corresponding driven chain 39 and whose position can be adjusted. A chain 40 is hung between the ends of the chain 40, and a pair of hook parts 41 and hook bodies 42 are connected between the ends of the chain 40, respectively.

41 is the above-mentioned hook part, which is a pair of hooks (A
42 are connected by a connecting plate 61.

This hook rest 42 is composed of a movable body 43, a pushing bar 47, and a retracting hook 55. This movable body 43 is mainly composed of a block body that can move between the guide rails 23, and a rising portion 4 is provided at the contact part of the block body (on the right side in the figure).
4 is provided, and a screw hole is provided on the upper side of the rising portion 44.
There is one through hole on the bottom side. Further, a shaft 45 is attached after 114 of the block body, and a row 546 that rolls on the guide 24 of the guide rail 23 is attached to both ends of the coaxial shaft 45, and the upper surface of this movable body 43 is used for pushing. Bar 47 has been removed. The pushing bar 47 has a predetermined length, has four parts 48 on both left and right sides of its upper surface, and is formed into a substantially convex cross-section.
0 is attached and is attached via a mounting bolt 51 so that its position can be adjusted in the forward 1!2h direction. At the rear end of the push-in bar 47 mounted in this way, a screw hole is screwed that aligns with the through hole ji +iQ in the raised part 44 of the body 43 to be transferred, and a lower adjustment bolt screwed into the screw hole 1- is provided. j) 2 is 0
It is inserted through the through hole of the upper part 44 and screwed together.
When it is spirally pressed by the rising part 44, it becomes 5, 0 rising B (
The upper adjustment bolt 53 is screwed into the screw hole +*a, and its base presses the end surface of the movable body 43 and presses the pushing bar 47.
It is installed so that it can be held horizontally. A retraction hook 55 is pivoted to the push-in bar 48 via a shaft 54 . This retracting hook 55 can be fitted into the part where the recess 47 of the pushing bar is formed.
The cross section is U-shaped, and its tip side extends a predetermined length from the tip of the pushing bar 47, and the nine ends thereof have a guide surface for a predetermined claw on the front side facing downward. 57a
A claw body 57 is formed, and a proximity switch 58 for detecting engagement of the claw body 51 with the mold is embedded in the base of the claw body 51. Further, engagement pins 59 are provided on both sides of the lower part of the shaft 54 to which the hook 55 is pivotally attached, and a spring member (double torsion spring) 60 is attached to the shaft 54. i
The retraction knock 55 is moved downward (-JM) centering on the hood 54.The ends of the chain 40 are respectively connected to the front and back of the hook rest 42 formed in this way, and this hook Knock 55 for retraction of holiday 42
A connecting plate 61 connects the upper surfaces of the connecting plates 6 and 6.
A blocking plate 62 with an arcuate surface 63 on the right is vertically disposed approximately at the center of the plate 1 . In addition, in one of the knock rests 42 connected to the continuous cape 3 in this way, in order to prevent A-bar run and to prevent the impact of positioning and stopping +15 when the knock part 41 moves forward and backward, the outer surface of the pushing bar 47 is provided with a lateral side. A backward end detection plate 64 is provided that extends to the rear end, and a pushing bar 47
A forward end detection plate 65 is vertically installed on the lower surface of the rear end detection plate 64 , and a bracket 66 that extends laterally and has a long hole 61 at the tip end is attached to the side surface of the rear end of the outer guide rail 23 . A proximity switch 68 for backward deceleration and a proximity switch 69 for backward end detection are provided in the elongated hole 61 so that their positions can be adjusted.
An elongated hole 70 is provided through the iyigli side of the elongated hole 10.
A proximity switch 11 for forward deceleration and a proximity switch 72 for front I end detection are provided inwardly so as to be able to be installed opposite to the forward end detection plate 64 . Hook portions 41 are provided at predetermined positions at the front and rear of the lift portion conveyance equipment 19 arranged in this manner.
front unclamping device 7 for unclamping and clamping the retracting hook 55 to the locking part 186 of the mold 185;
3 and a rear unclamp device 14 are provided.

73 and 14 are the unclamping devices described above, and since both devices 73 and 74 have almost the same configuration, to explain the front unclamping Vid, this device 73 has the hook 8.
It is disposed below the connecting plate 61 when the I141 stops at the forward end, and is 15! A support frame 1 which is a bracket formed in an oval shape and is provided approximately at the center of the rising piece.
Hydraulic cylinder γ7 is installed upward via 6 1),
At the end of the rod 18, a horizontally pushing plate 79 is attached.
1 is attached, and guide rods 80 are provided on the lower surface of both ends of the push-up plate 19, and the guide rods 80 are fitted into guide tubes 81 provided at both ends of the bracket 15 to control the operation of the hydraulic cylinder 17. It is held horizontally by the number 794 of the push-down and the top 'F' is started. Place 73 on this Anklan 7
．． Knocks for retracting the left and right lift parts 41 for the operation of 74! ＋! l It is moved up and down by the LJ actuating plate 62 via the connecting plate 61 and is unclamped and clamped to the locking part 186 of the mold 185. This unclamping/clamping motion fl is achieved by providing an arcuate surface 63 on the lower surface of the f'l moving plate 62, so that the retraction knock 55 can operate extremely smoothly and reliably.

Reference numeral 82 denotes lift lock parts, which are provided at four locations close to the guide tube 13 of the lifting table 11, and when stopped at each storage shelf 103, lift locks are provided close to the supports 102 of the storage 411103. 182 and the storage shelf 10
This is to align and maintain the roller 106 surface of the conveyance roller 104 of No. 3 and the roller 16 surface of the hydraulic die-litter at the same position. A guide block 83b with a hole 84 installed thereon is attached, and a mounting plate 86 on which a hydraulic cylinder 85 is attached is attached to the rear end of the block 83b. Hole 8
4 is screwed onto the rotary body 88, and a member 89 is installed horizontally on the tip side of the movable body 88 to engage and abut the pedestal 182. .Also,;
A guide groove 90 that engages with the tip of a kite bin 91 screwed from the side of the guide block 83 is recessed in the outer periphery of the learning body 88 along its axis, so that the receiver always holds the member 89 horizontally. (1'4) Each hydraulic cylinder 8 of the thus formed lift 1]
The diagonal hydraulic cylinder 85 is equipped with a proximity switch (not shown).
is attached to detect the operating state.

Reference numerals 92 and 93 denote grooves 1 to flange portions which are stepped in the vicinity of the relief recess 14 and are used to position the mold 185 and prevent overrun.A stopper bin 95 is attached to the tip of the rod of the hydraulic cylinder 94. The stopper pin 95 is slidably provided on the guide cylinder 96 and is provided on the upper surface of the table 11 so as to be retractable. Similarly, there are stoppers 9γ on both sides of the front side of the rear unclamping device 74.
, 98 are provided, respectively.

In addition, on one of the corresponding corners of the lifting table 11,
．． A light emitter 99 and a light receiver 100 are arranged opposite each other and are configured to detect the presence or absence of a mold 185 on the daple 11.

Next, to explain the storage jp101, this storage J
iflO1 is installed on both sides R and L of the Gino time device 6, and both storage @ 1 (H1?,, 1011 are both formed in the same configuration. 102 is the support of the hangar 101, and the lifting device The table 11 is mounted on the support 102 on the 6th side.
A guide support 12 for guiding up and down is installed vertically, and a plurality of storage shelves 103 (in this example, three stages are illustrated) are formed in one layer at t between the supports 102, and each storage shelf 1
03 respectively have a conveyance roller 104 and a shelf conveyance device?
ff119 is provided.

Reference numeral 105 denotes a beam member horizontally suspended between the supports 102, and a conveyance roller 104 is disposed parallel to the center line C2 of the table 11 between the two beam parts 44105. Lift section transport device d1
Al + pressure type die lifter 75 arranged perpendicular to 9
and each roller 106 thereof is disposed on the same line as
The surface is set at the same level as the height at which the roller 16 of the die lifter 15 is operated. In addition, this conveyance roller 104
In between is the center I! A shelf conveying device 119 is arranged along 2C2. Since this shelf conveyance device 119 is provided with almost the same configuration as the lift conveyance device 19, the outline thereof will be explained using the number 100 and the same member number fJ. That is, the guide part 120 is disposed along the center line C2, and the guide part 12G is provided with a guide rail 123 opposite to it. ), and a drive part 127 is disposed on the side of the extension part, and the drive shaft 1 of this drive part 127
A drive chain wheel 137 aligned with the center of the guide portion 120 is keyed at both ends of the guide portion 35 . Further, on the table 11 side of the guide portion 120, a drive chain wheel 131 and a corresponding driven chain wheel 139 are provided with a drive chain wheel 139 whose positions can be adjusted.
Each is provided with both chains! Hook bodies 142, which form a pair of hook parts 141, are connected between the ends of chains 140 hung on chains 137 and 139, respectively. In this hook body 142, a pushing bar 147 is provided on a movable body 143 so that its position can be adjusted through a long hole 150, and the pushing bar 141 has a claw body 157 at its tip and a proximity switch 58 is embedded therein. Retraction hook 155 is shaft 1
54, and the retractable hook
155 is connected (J99) by the spring part 0160.

Connecting #1161 is connected between the retracting hooks 155 of both hook bodies 142 formed in this way to form a knocking portion 141, and this connecting plate 16
An actuating plate 162 with a circular arc surface 163G: 1 is attached to the lower surface of the cylinder 1 with a circular arc surface 163G like a hook 41 and R). Further, a proximity switch 1 for backward deceleration is provided at the rear of the guide rail 123 inside one guide portion 120.
A proximity switch 171 for forward deceleration and a proximity switch 1 for forward end detection are provided at the front of the guide rail 123.
72 is arranged, and each proximity switch 168, 169.1 is provided on the side of the pushing bar 141 of the hook body 142.
The detection plate 164 opposite to 71 and 172 has been removed.

Reference numeral 173 is an unclamping device provided below the connecting plate 161 when the hook portion 141 is stopped at the forward end at the front part (17/lowering table 11 side) of the shelf conveyance device 119, and this unclamping device 173 and J3, it is formed to have almost the same configuration as the front unclamping device 73 of the lifting table 11. In other words, the hydraulic cylinder 117 is located at the center of the front surface of the beam portion 44105, facing upward via the support frame 17G. A push-up plate 179 is installed horizontally at the end of the rod 178, and guide rods 180 are vertically installed below both ends of the push-up plate 179. 180 is inserted into guide cylinders 181 provided on the left and right sides of the hydraulic cylinder 177.

182 is a lift lock part 82 provided on the lifting table 11
These pedestals are provided close to the pillars 102 on the left and right front surfaces of the beam members 105 on the side of the lifting table 11. Further, a stopper pin 183 is provided on the side of the guide portion 120 of the beam member 105 on the rear side. Further, 184 is a phototube arranged on the shelf 103.

Next, a hydraulic circuit between the exchange device 5 and the press machine 1 configured as described above will be explained.

190 is a frame body of a press machine, and a cylinder 192 is attached to the center of an upper frame 191 of the frame body 190, and balance cylinders 193 are attached to both sides of the cylinder 192. Slide body 19 is attached to the lower end of the tube 194.195.
6 is attached, and an upper mold 185a is attached to the lower surface of the slide body 196.

Further, on the upper surface side of the table 191 of the frame body 190, a lower mold 185b is provided with a mounting number corresponding to the upper mold 185a. Further, 198 is a directional switching valve of the main cylinder 192, which is connected to the Ura B source 200 via a pipe 199, and its pipe 201 is connected to the piston side of the main cylinder 192, and the other pipe 202 is connected to the main cylinder 192. cylinder 1
A pilot check valve 203 is disposed in this piping 202, and a pilot check valve 203 is connected to the piston 199 side of the piston 92.
A switching valve 205 is disposed in the piping 204 connected between the two.

Reference numeral 206 is the base piping to the complete conversion 'c15, and this section 5 piping 206 is connected to the piping 201 connected to the lower chamber of the lifting oil tank cylinder 7 of the lifting device 6, the lifting table 11, and each storage shelf 103. It is branched into a pipe 208 which is connected to a hydraulic motor 29.129 of an installed transport device 19.119. Note that piping to other hydraulic moving parts has been omitted. A pilot check valve 209 and a directional switching valve 210 are disposed in this arrangement @ 201, and a switching valve 211 is connected to the pylon 1 check valve 209, and a directional switching valve 210 is connected to the pylon 1 check valve 209.
When solenoid SO [6 of 10 is activated, hydraulic cylinder 7
The rod 10 is raised upward, and at the same time as the solenoid SO[7 is activated, the solenoid 5OL8 of the switching valve 211 is activated, and the rod 10 is lowered.

Additionally, the piping 208 includes a safety valve 212 and a directional switching valve 213.
The solenoid SO[9 of the directional control valve 213
, 10, the hydraulic motors 29, 129 are rotated in forward and reverse directions. In addition, a pressure switch 2 is attached to this base pipe 20G.
14 and a pressure accumulator 215 having a predetermined capacity, that is, a capacity sufficient to operate each hydraulic actuating part of the exchange device 5. A check valve 217 is connected to the pipe 216, and a check valve 217 is disposed in the pipe 216. Further, a pipe 218 is provided on the input side of the pipe 216 and the pipe 204, and a pilot check valve 219 and a switching valve 220 are provided in the pipe 218. Also,
A pipe 221 connected to the pipe 199 is arranged between the a/) 3215 of the pipe 218 and the check valve 217, and a check valve 222 and a switching valve 223 are arranged in the pipe 221, and the pressure is accumulated. When the pressure switch 214 detects that the pressure inside the container 215 is below the current pressure, the solenoid SO[4 of the switching valve 223 is activated to replenish the pressure oil.

Next, the operation of this embodiment configured as described above will be explained.

First, when replacing the mold 185, press machine 1
After being removed, the IC mold 185 is placed on the bolster 4 with the upper mold and lower mold superimposed on each other, and is moved to the transfer table 3 and placed on standby. In this case, the adventure table 11 is located at the bottom storage (ll 103), and the adventure table 11
The lift lock part 82 provided in the shelf 103 is activated.
It is locked on standby 182 and is on standby. When the replacement start button on the operation panel (not shown) is turned on in this state, the presence or absence of the mold 185 on the table is detected by the light emitter 99 and light receiver arranged on the table 11, and it is confirmed that there is no mold 185 on the table. When this happens, the hydraulic pressure of the lift section conveyance device 19 [-Y2
9 is actuated, the hook portion 41 is moved forward, while the oil F1°
The roller 16 is lifted up by the die lift 15 and aligned with the upper surface of the buffer roller 17 and the bolster 4. And 1) Forward wheeze detection pump G attached to the hook portion 41 that is advanced! When r is detected by the proximity switch 11 for forward deceleration disposed at the front part of the guide section 20, the rotation of the Mlll upper pressure motor 29 becomes closer due to this detection signal, and then the proximity switch for forward end detection When the detection plate 65 is detected by 72, the hydraulic Tanabata 29 is stopped, and the knock part 41 is stopped.
It will stop immediately. During the advancement and deceleration process of the hook portion 41, when the distal ends of the retraction hooks 55 of the left and right hook bodies 42 come into contact with the engaging portions 186 of the mold 185, the hooks 55 are moved to the guide surfaces 51a7 at their distal ends. 186, the hook 55 is rotated upward about @54 against the spring member 60, and the claw body 57 of the hook 55 is clamped to the locking part 186 at the position where the hook part 41 is stopped. Further, the tip of the pushing bar 41 is brought close to and in contact with the locking portion 186. When the retracting hook 55 is clamped to the locking part and this is confirmed by the proximity switch 58, the stopper part 97 provided on the rear side of the device 19.
98 is activated, the slider bin 95 is protruded from the soil surface of the table 11, and overrun of the mold 185 is prevented, and the hydraulic motor 29 of the drive section 21 is reversed, and the hook section 41 is retracted. The mold 185 is drawn onto the lifting table 11.

After the retraction end detection plate 64 attached to the hook part 41 is disposed on the guide part 20, the proximity switch 6 for deceleration is installed.
When detected by B, the hydraulic pressure E-29 is decelerated and the hook part 41 is also decelerated.Furthermore, when the backward end detection 64 is detected by the six proximity switches for backward end detection, the hydraulic motor 29 is decelerated. Then, the hook part 41 is stopped, and the mold 185 is thereby transferred onto the lifting table 11. When the proximity switch 69 for detecting the backward end detects the detection plate 64, the stopper part The stopper pins 92 and 93 and the front unclamp device 13 are raised to prevent the mold 185 from falling.When these stopper parts 92 and 93 are operated, the lift lock part 82
is activated, the lock with the pedestal 182 is released, and the lifting hydraulic cylinder 7 is operated upward. This upward movement is performed at the initial stage of operation when the photocells 1 arranged in each storage shelf 103 are
84 confirms whether the mold 185 is stored or not.
For example, when the Nα3 storage shelf 103 of the storage room 101R is empty, when the lifting table 11 is raised to the No. 3 position, the lift lock 8i 182 is activated and the roller of the hydraulic die lifter 15 of the table 11 is lifted. The surface of conveyance roller 104 is aligned with the surface of roller 106 and locked. When it is confirmed that the mold 185 is placed again in this state, the drive section 127 of the mBI transport head device 9 disposed on the storage shelf 103 of N03 is activated and the hook section 141 is moved forward. Ru. And hook part 141
The hook portion 141 is decelerated when the detection plate 164 attached to the guide rail 123 is detected by the proximity switch 171 for forward deceleration, and further detected by the proximity switch 172 for forward end detection. Hydraulic pressure 7-
129 is stopped and the knock unit 141 is also stopped. During the advancement and deceleration process of the hook portion 141, the hook 155 for retracting the hook body 142 is made of gold A+ 185 and the locking portion 186
be clamped to. And this clamp knocks 1
When confirmed by the proximity switch 58 buried in 55,
Shelf No. 3 of the lifting table 11.
Stopper pin 9 of collar portion 93 and stopper portion 97.98
When 5 is used, the rear unclamping device 74 of the table 11 is operated to release the retracting hook 55.
is unclamped. After that, drive section 1 of shelf No. 3
27 is reversed, the hook part 141 is retreated, and the gold 'J' 185 is drawn toward the shelf 103 side. Then, the detection plate 161 provided on this hook portion 141 detects 'JI!
When detected by the proximity switch 168 for backward deceleration, the hydraulic motor 129 of the drive unit 127 is rotated slowly, and when detected by the proximity switch 169 for backward detection, the d11 pressure motor 129 is stopped and the hook is Section 141
It is stopped F. When the drive unit 127 is stopped, the unclamping device 173 provided at the front of the shelf transport H place 119 rises and also serves as a stopper to prevent the mold 185 from falling.

Next, if there is a mold 185 for a customer on a storage shelf storing molds 185 to be attached to the press machine 1, for example, the shelf 103 of Nα2 of the storage JII 101L, the lift table 11 is not engaged with the lift 1 cock part 82. It is released and lowered to the position of storage shelf 103 No. 2. In addition, during this descent, the rear part of the lifting table 11? Clamp device 141J
When it is lowered and the hook part 41 is returned to its original state, 6
Then, the lowered stopper portion 93 and stopper pins 95 of the stopper portions 97 and 98 on the III Nα3 side are moved upward and lowered. Then, when the lifting table 11 is stopped at the No. 2 storage shelf 103, the lit lock part 82 is activated and locked, and the presence or absence of the mold 185 on the W clear table 11 is confirmed, and the absence of the mold 185 is confirmed. When this is confirmed, the rear unclamping device 14 of the lifting table 11 is moved upward, and the retracting hook 55 of the hook portion 41, which is held at the rear position, is moved upward and held at the unclamping position. The stopper parts 92, 97 and 98 on the No. 2 storage shelf 103 side of the storage 1011 are moved down and the mold 185
Completed preparation for acceptance. After that, N (12 shelves 10
The drive section 121 of the No. 3 transport device M119 is driven. As a result, the hook body 141 is moved forward, and in this case, the retraction hook 155 is 1 gold! :! 185 is clamped to the IF portion 186. The mold 185 is pushed forward by the pushing bar 147 by this 11-step advance, and when the detection plate 164 is detected by the proximity switch 171 for forward deceleration, the rotation of the hydraulic motor 129 is slowed down, and the proximity switch 112 for forward end detection When detected, the hook body 141 is stopped and the mold 185 is transferred onto the lifting table 11.

With the stop of this hook body 141, N of the boundary table 11 is
o, 2 on the shelf 103 side (・Brim portion 92, 97, 98
When the is moved up, the rear 31j uncran 1 device 14
is moved down and the retracting hook 55 is clamped to the locking part 186 of gold M18!1, and when this clamping is confirmed by the proximity switch 58, the No. 2 shelf 103
The unclamping device 173 moves upward and the retraction hook 1
55 is unclamped and the hook body 141t is moved back. And the lift lock part 8 of the W Lff table 11
2 is unlocked, the lifting table 11 is lowered to dry, and is stopped 1 at the lower limit position F ((position of the storage shelf 103 of Nα1).
The lit lock part 82 is locked again to the pedestal 182 of 4i1103 of Nα1. When this locking is completed, the front unclamping device 73 and the stopper section 92.93 are moved F, and the driving section 27 of the conveying device 19 is accordingly driven, and as the block pot 41 moves forward, the pushing bar 47 is moved to the mold. 185 is pushed onto the bolster 4 waiting on the transfer table 3, and when the forward end detection plate 65 is detected by the forward end detection proximity switch 72, the hook body 41 is stopped and the mold 185 is pushed onto the bolster 4. It will be transferred to. This hook body 41
When this is stopped, the front unclamping device 13 is moved upward to unclamp the retracting hook 55 of the hook body 41, and when this is confirmed, the hook body 41 is retreated to complete the replacement of the mold 185. .

As described above, according to the complete conversion v11 of this example, the mold 185 having ff1l can be transferred to the press machine 1, the lifting table 11, and the storage @ 103 phase η1m automatically and extremely smoothly and safely. Molds can be exchanged efficiently in an extremely short time, and the molds can be stored safely.

Next, to explain the hydraulic system, the balance cylinder 1 provided on both sides of the main cylinder 192 of the press machine 1
93 corresponds to the pressure of the exchange device 5, so the directional control valve 1
98 and the solenoid S01.2 of the switching valve 205. SOL
, 3 are turned on, pressure oil flows into the piston side of the main cylinder 192 via the pipe 201, and pressure oil in the pipe 204 in which the switching valve 205 is installed flows into the pilot check valve 20.
3 is opened, the pressure oil on the piston rod side of the main cylinder 192 is released into the oil tank, and the piston rod 194 of the main cylinder 192 is lowered, and the slide body 196b connected thereto is moved down along the frame body 190. The blank placed on the 5 mold 185bf is on the upper stand/1jp18!
1a and a lower mold 185b for press molding. Therefore, the balance cylinders 193 on both sides of the main cylinder 192 have their piston rods 195 connected to the slide body 19.
6, the lowering operation of the main cylinder 192 causes the screw rod 195 to be lowered, thereby compressing the oil on the 1111 screw rod 195 side and passing it through the pipe 216 to the pressure accumulator. 215 at one pressure, and then, at the same time as the solenoid SO[1 of the directional control valve 198 is turned on, the balance cylinder 1
Piping 2 connected to the piston rod 194 side at the bottom of 93
The solenoid SO 5 of the switching valve 220 disposed at 18 is operated, and the pilot check valve 219 is opened.

Therefore, the pressure 7111 flows into the piston rod 194 side of the main cylinder 192 through the piping 202, and the piston rod 194 moves upward. The piston 195b of the balance cylinder 193 is integrally mounted on the upper part 195b of the balance cylinder 193. This piston rod 195 Fl/V
As a result, the chamber on the side of the screw 1-rod 195 is connected to the oil tank T by the pilot check valve 219, so that the Hll of the oil tank T is sucked into the palm on the side of the piston rod 195.

Then, the main cylinder 192 is moved down again, and the balance cylinder 193 is placed on the screw 1-on rod 19 ( ) side.
11 is made high pressure and stored in the pressure accumulator 215, and the following press observation 1 is 1ffn 215 in the press molding method-J filter process.
Hydraulic energy sufficient to operate the exchange device 5 can be stored within the exchange device 5, and thereby the exchange device 5 can be driven and searched, and energy can be saved.

Although each drive unit of the exchange device 5 in the above embodiment is illustrated as being connected to the pressure accumulator 215 connected to the balance cylinder 193 of the press machine 1, it may also be configured to be connected to an independent hydraulic power source 9. Above arf'? A215 is connected to each driving part of the exchanging device 5, but for example, the hydraulic drive part of the IR structure for placing the blank on the mold 185 and taking out the press-formed product, the hydraulic pressure of the conveyance device for the blank and the press-molded product, etc. Applicable to drive parts.

(Effect of the invention) Now, does the present invention work in close proximity to a press machine? I can move F
/ unloading device equipped with a unloading table, and this 7 / unloading; is provided with a hook part that can be moved back towards the press machine (a hook part is provided with a lift part conveying device), and each storage shelf of the hangar is provided with a hook part that can be moved back and forth towards the adventure table side. A shelf conveying device is provided with a hook portion, and each hook portion is provided with a pushing bar for pushing the mold and a retracting hook for unclamping and clamping the mold. A seven-clamp device is provided on the front and rear sides of the lift transport device to unclamp and cut the retracting hook to the unclamp/clamp position, and a seven-clamp device is provided on the surface side of each shelf transport device to unclamp/unclamp the retracting hook. By setting up an unclamp H part that operates at the clamp position, and by installing a stopper part at a predetermined position of the front hd field lifting bull and each storage υj, a mold having a small size H1 can be created. Transfer between the press machine, the adventure table, and the storage rack can be carried out automatically and extremely smoothly and safely, and the mold can be exchanged efficiently in an extremely short period of time. Molds can be safely stored.

In addition, each device of the mold exchange storage device and each hydraulic actuator of the stopper section are connected to a pressure accumulator, and the pressure accumulator is
It is connected to the bushi press machine cylinder described in η by a piping equipped with a check valve on the piston rod side of a balance cylinder installed in parallel via a slide body, and there is a connection between the balance cylinder and the oil tank only for the rise of the main cylinder. to I
A piping equipped with a valve that allows oil to be sucked into the piston rod side of the balance cylinder when the main cylinder is released is installed, and when the main cylinder is lowered, the oil on the piston rod side of the balance cylinder is drawn into the OiJ storage pressure accumulator. By adopting a configuration that includes high-pressure feeding, the press forming process of the press machine (
Ura LE energy sufficient to operate the mold exchange storage device can be stored in the pressure accumulator, and the mold exchange storage device can be driven and operated using this energy, saving energy. As a replacement storage device, its contribution to industry is extremely large.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, and FIG. 1 is a front view of the press machine and the mold exchange storage device without showing their arrangement, FIG. 2 is a side view of the same, and FIG. 3 is a front view of the mold exchange storage device. Figure 4 is a plan view, Figure 5 is a plan view of the beam/descent table, Figure 6 is a front view of the i-adventure table, Figure 7 is a side view,
Fig. 8 is a front view of the beam 71 to section 1 feeding device, Fig. 9 is a plan view as well, Fig. 10 is a sectional view taken along the line ■-■ in Fig. 8, and Fig. 11
The figure is a line sectional view of Fig. 8, and Fig. 12 is a line sectional view of Fig. 8.
-IV line sectional view, Fig. 13 is a plan view of the drive section, Fig. 14 is a side view, Fig. 15 is a front view of the unclamping device, Fig. 16 is a plan view of the lift lock section, Fig. 17 Figure 18 is the front view, Figure 19 is the front view of the storage shelf, Figure 20 is the same.
1 is a front view of the shelf conveyance device, FIG. 22 is a plan view thereof, FIG. 23 is a sectional view taken along the line II-[ of FIG. 22, and FIG. 24 is a hydraulic piping diagram. 1...Press If 6...¥1 Descending device 1
1... Back sewing table 19... Lift section conveyance device 41... Hook section 41
...Pushing bar! )5...Retraction hook 73...Front unclamp device 74...Rear unclamp device 92, 93.97.98...Stopper part 101...
・Storage T! II 103...Storage shelf 119
... Detail conveyance device 141 ... Hook part 147
... Pushing bar 155 ... Retraction hook 173 ... Unclamping device 183 ... Slipper bin 192 ... Main cylinder 193 ... Balance cylinder

Claims (2)

[Claims] (1) Providing an elevating device with an elevating table that can be moved up and down in close proximity to the press machine, and a storage having multiple storage shelves that can store molds on one or both sides of this elevating device, The lift table is provided with a lift conveyor device having a hook part so as to be movable back and forth toward the press machine, and each storage shelf of the hangar is provided with a lift section conveyor device so as to be movable back and forth toward the lift table. A shelf conveying device provided with hook portions is provided, and each of the hook portions is provided with a pushing bar for pushing the mold and a retracting hook for unclamping and clamping the mold, and the lift portion is conveyed. An unclamp device that operates the retracting hook to the unclamp/clamp position is provided on the front and rear sides of the device, and an unclamp device that operates the retracting hook to the unclamp/clamp position is provided on the front side of each shelf transport device. 1. A mold exchange/storage device for a press machine, characterized in that an unclamping device is provided, and a stopper portion can be installed at a predetermined position of the elevating table and each storage shelf. (2) The mold exchange storage device includes an elevating device that is equipped with a lifting table that can be moved up and down, and a storage that has multiple storage shelves that can store molds on one or both sides of the elevating device; The elevating table is provided with a lift portion conveying device that is provided with a hook portion that can reciprocate toward the press machine, and each storage shelf of the hangar is provided with a hook portion that is reciprocally movable toward the elevating table side. A shelf conveying device, and each of the hooks is provided with a pushing bar for pushing the mold and a retracting hook for unclamping and clamping the mold, and the retracting device is provided on the front and rear sides of the lift conveying device. the lifting table; and a stopper section disposed at a predetermined position of each storage shelf, each hydraulic actuator of each of the devices and the stopper section is connected to a pressure accumulator, and the pressure accumulator is connected to the main cylinder of the press machine via a slide body. The piston rod side of the balance cylinder is connected to the piston rod side of the balance cylinder arranged in parallel, and the piston rod of the balance cylinder is connected between the balance cylinder and the oil tank by opening only to the rise of the main cylinder. A piping provided with a valve capable of sucking oil is arranged on the side, and oil on the piston rod side of the balance cylinder is fed at high pressure into the pressure accumulator when the main cylinder is lowered. A mold exchange storage device for press machines.