JPS5921717B2 - Strip feeding device to press - Google Patents

Description

[Detailed description of the invention] The present invention relates to a terminal device for strip material.

Conventionally, devices have been announced that automatically feed multiple pieces of coil material into a press machine one after another.

(Patent Publication No. 47-10152: Method and Apparatus for Automatic Stamping Processing) However, with this method, only two pieces of coil material can be attached at a time, and the disposal of the remaining material at the end of the material requires considerable ingenuity. There are unavoidable flaws. There is also a method of making a notch at the end of the coil material and the next tip, fitting it into each other, and sending it to the press as a continuous material, but with this method, when the press punching part comes to the fitting part, it will be cut into pieces. There are drawbacks. As described above, there is no effective device for continuously and automatically feeding a large number of coil materials.

Also, butt welding the ends of the material together before sending it out is already common in continuous rolling lines at steel mills, but as with pressed materials, the thickness and width of the material are greater than conventional welding. However, in order to satisfy these conditions, the structure becomes complicated, and the reality is that it is not used in press processing. The present invention uses a large number of preset strip coil materials (
It involves a device that overlaps each end of metal materials and shears them, butts the rear ends and welds them together, then sends them to a press machine and presses them continuously.It involves a set of many coils. It is possible to repeat the operation fully automatically until the material runs out. Another object of the invention is to provide a device that overlaps each other's ends, cuts them simultaneously, and welds the pressed material without removing it. Another object of the present invention is to provide an apparatus having a structure in which a leading end is held on a coil material loading table in order to continue feeding a large number of coil materials one after another.

An embodiment of the present invention will be described in detail below.

FIG. 1 is an overall schematic diagram of the apparatus of the present invention, where a is a press machine;
b is a material end welding device, c is a coil material feeding device,
d is the coil material preparation table. FIG. 2 is a perspective view of the coil material preparation stand in FIG. 1. To explain one embodiment of the present invention shown in FIGS. 3 to 5, two guide rods 29 are attached to the main body 1 of the device parallel to the nut 28, and the guide rods move along the guide rods. There is a lower turret 6,
A lower blade 5 and a welding backing metal 7 are fixed to this.

Further, four vertical guide rods 3 are press-fitted and fixed to the lower tool rest in order to support the ceiling plate 2 and to guide the upper tool rest 12. An upper blade 4 is fixed to the upper tool rest, and a cylinder 15 performs terminal cutting. The end of the coil material 80e, which was previously fed into the press machine, is stopped so that a certain amount of gas remains from the lower blade as shown in FIG. The material 80e is clamped by the clamper 24 to actuate the cylinder 25 with the clamp rod 22. Next, as shown in the figure, the tip of the newly fed material 80f (to the coil material feeding section) is fed so that a certain amount of the tip of the material 80f is removed from the lower blade 5 and remains as gas. In that case, first, the lever 36 guides the leading end of the succeeding material 80f upward to the cylinder 37 so that it rests on the preceding material 80e. After the guidance is completed, the lever 36 slips under the clamper holder 23a. The material 80f fed into the fixed position is clamped by the clamper 24a. In this state, the ends of both materials are cut by the engagement of the upper blade 4 and the lower blade 5. The terminal scraps of the cut material 80e fall under their own weight and enter the scrap receiving box 33. Further, since the terminal scrub of the material 80f remains on the material 80e, it is suctioned and lifted by the rubber suction cup 10 attached to the presser plate 11 via the material presser spring 9 at the same time as the upper tool rest is raised. The rubber disk is connected to a vacuum pump 14 through a flexible hose 13. The scrap falls off by passing air through the rubber suction cup.
Next, the lower tool post is pushed forward by the lateral movement cylinder 35 and stops when it hits the side of the clamper holder 23a. In this case, the cutting edge of the strip material 80f is cut by the lower blade 5.
It moves while being pushed up by the pushing up cylinder 30 for a short while so as not to get caught. The upper tool rest 12 and the welding torch 8 move in conjunction with the lower tool rest 6.
The amount of movement is such that the tip of the welding torch 8 just matches the cut line of the strip material. Thereafter, the terminal scraps sucked up by the rubber suction cup are placed on a conveyor 38, passed over a comparer 39, and are discharged to the outside. The welding torch 8 is fixed to a torch moving table 21 and rotated by a feed motor 55 along a hardening guide rod 19 fixed to the ceiling plate 2 via a support 18 .

It is moved onto the strip material by the feed screw 17. 20
indicates ball pairing.

The torch moving table 21 includes a pressure cylinder 54, a rotation stopper 56, pressure rollers 51 and 52, and a roller holder 5.
3 is attached. The pressure roller 51 is used to press the ends of the materials 80e and 80f while rolling them to align their positions during welding, and the other pressure roller 52 is used to crush welding gas etc. generated by welding after welding. It is a roller.

The electrical cord connecting to the welding torch and the air hose for the pressurized cylinder pass through the welding torch carriage and are held in the cable guide chain 16 for free and effortless movement.

The material width guide 45 is fixed to the piston rod of an air cylinder 43, which is fixed to the cylinder holder 42, and can be adjusted to match the material width by loosening the bolt 41 and using the screw 46.

50 indicates a coil spring for lifting the clamper 24.

The pace plate 34 is a plate that supports the main body 1 of the apparatus, and is fitted into a dovetail groove as shown in the figure.The pace plate 34 is a plate that supports the main body 1 of the apparatus and is inserted into a dovetail groove as shown in the figure. The entire device is movable.

This allows the position of the weld line to be changed arbitrarily for pressed products, which is a feature of this device. Figures 6 to 9 show embodiments of a coil material feeding device and a coil material loading table, in which the material feeding device is attached to a repeller pedestal 65 and driven by a chain drive by a deceleration motor 72, which also serves to straighten the material. Material 8 fed out by shedding roller 71
0 passes between the upper guide plate 77 and the lower guide plate 78 and is sent out over the material receiving plate 79.

The deceleration motor 72 is rotated and stopped by limit switches 75 and 76 fixed to the upper and lower guide plates, and when a material touches the detection needle of the limit switch 75, the motor rotates and touches another limit switch 76. and stop.

The coil material preparation table base 66 is placed on two hardened rods 81 via a ball pairing 94, and has a structure in which the hardened rods can be moved along. In this figure, six coil materials can be inserted, but the number of inserted coils can be freely determined at the time of design, and any number of coils can be used. The coil materials are separated from each other by side plates 84 and 85 to prevent the coil materials from collapsing with the width guide. , Figures 8 and 9 show the structure for automatically sequentially moving the coil material preparation table pace 66, which plays an important role, at a fixed pitch in this device, and the two guide rods 97 are levelers. The block 100 is held on the pedestal 65 side and is moved along the guide rod by a cylinder 95.
This amount of movement (cylinder stroke) corresponds to the pitch of the groove cut into the base 66, and the dot 99 at the tip of the piston rod engages the groove of the base 66 to feed at a constant pitch. A positioning pin 10 is attached to the tip of the piston rod of the small cylinder 101 fixed to the mounting plate 103.
2, by which the base 66 is positioned. Figures 10 to 12 show how to handle the tip of the coil material, which plays an important role in this device. As shown in the perspective view of Fig. 2, when inserting the coil material into the coil material loading table in advance, it is necessary to hold each tip end between two rollers. This is an important point in order to automatically connect to -71.

The pinch rollers 90, 91 are supported by side plates 84 or 85, and the shaft 67 of the pinch roller 90 with lever 68 is supported by a presser plate 86 with a spring force. 87
indicates a bolt, and 88 indicates a coil spring.

A pairing 89 is installed between the shaft 67 and the pinch roller 90. Since the shaft 67 is an eccentric shaft, the lever 68
By tilting up or down, the two pinch rollers -9
A gap is created between 0 and 91, allowing the material to be inserted. The pinch rollers 90, 91, etc. are integrally constructed in the storage part, and one gear that meshes with the gear is installed on the fixed side. The geared pinch roller 91 is a drive-side roller for feeding the tip of the pinched material to the delivery roller 71, and power is transmitted by the drive gear 69 on the drive shaft 69. The drive gear support box 70 is moved up and down by a cylinder 74 at a certain angle with the deceleration motor 73 as a fulcrum, and transmits and releases the power between the drive gear and the geared pinch roller. The power of the motor 73 is transmitted to the drive gear by a chain (not shown) that passes through the drive gear support box and surrounds the motor 73 and the drive gear. 13 to 16 show another method of FIG. 10, in which an opening/closing plate 113 is fixed to a scissor plate 112 via a spring spring.

The material is sandwiched between them as shown in the figure. Reference numeral 114 indicates a mounting bolt, and reference numeral 115 indicates a coil spring.

The scissor plate 112 is fitted into the groove of the side plate 84a,
And it is pulled downward by a tension spring 116. By using the support plate 118 as a fulcrum and protruding the cylinder 117, the rocking plate 110 lifts the hook plate 111 upward. The leading edge of the material is thus connected to the delivery roller 71. Further, when the cylinder 117 is actuated, the opening/closing plate 1
Since the material 13 ascends along the groove of the side plate 84a, it is released from being sandwiched between the scissor plate and the opening/closing plate, allowing the material to freely pass between them. Figure 15 shows holder 121
This is an example of holding by a rubber suction cup 120 attached to the
FIG. 16 shows an example of holding by an electromagnet 122.

Conventionally, when welding cut sections of a coiled strip material together, it is necessary to cut the coiled strip material exactly at right angles to the edge of the strip material in order to match the surfaces of the cut sections. However, in the device of the present invention detailed above,
When the preceding coiled strip runs out while the strip is being fed to the press, the starting end of the subsequent coiled strip is overlapped with the end of the preceding coiled strip. Since the cut surfaces of the preceding coiled strip and the following coiled strip coincide even if they are not exactly perpendicular to the edge of the strip, it is easy to weld the butted strips together, and it is also easier to weld the strips against the clamper. Since the turret and welding torch work together, a reliable weld can be obtained.

[Brief explanation of drawings]

FIG. 1 is a general schematic view of the apparatus of the present invention, and FIG. 2 is a perspective view of a coil material preparation table. Figures 3 to 5 are explanatory diagrams of the material end welding device. Figure 3 is a front view showing the BB cross section in Figure 5, and Figure 4 is a side view showing the arrow P view in Figure 3. FIG. 5 is a plan view taken along line AA of FIG. 3. Figures 6 to 16 are views of the coil material feeding device and the coil material preparation stand, with Figure 6 being a side view, Figure 7 being a front view, Figure 8 being a plan view, and Figure 9 being a side view. D-D in Figure 8
A cross section is shown. Figures 10-12 are partially enlarged views, Figures 13-1
FIG. 6 is a diagram illustrating another method of FIG. 10. In the figure, 1 is the main body of the device, 6 is the lower turret, 8 is the welding torch, 1
2 is an upper tool rest, 17 is a drive device, 24, 25, 24a,
25a is a clamper, and 35 is a drive device.

Claims (1)

[Claims] 1. A device main body, a clamper fixed to the device main body and capable of tightening the starting end of the following band material, and a clamper capable of tightening the terminal end of the preceding band material, and a cylinder provided on the device main body to tighten the subsequent band material. A lever that guides the tip of the strip material upward, a lower tool rest that can be moved by a predetermined distance by a drive device installed in the device main body, an upper tool rest that is interlocked with the lower tool rest, and an upper tool rest that is also linked with the lower tool rest. a welding torch arranged at a distance in the longitudinal direction of the strip material by the predetermined distance with respect to the upper tool post; a drive device for moving the welding torch in the width direction of the strip material; A device for welding ends of strip material, comprising a device for removing upper end scraps produced after overlapping and cutting of materials.