JPS59205560A - Manufacture of projection target and device thereof - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention 1 relates to means for manufacturing and supplying targets used in conventional clay shooting competitions in the vicinity of a shooting machine, and involves press-molding using wood chips as the target material. It is.

As is well known, targets used in clay shooting competitions are made by kneading pitch etc. into clay and forming it into a shallow bowl shape with 7 lunges according to prescribed rules. will be crushed by shooting and scattered on the shooting range Grassund, and if the competition @ degree is high, 6
Since the amount of target fragments in the composition will accumulate, it is necessary to increase the amount of these from the grund, which naturally requires a lot of expense, and it is also necessary to bury them to dispose of the target fragments that have become rubble. Many inconveniences have arisen, such as the need to secure land for construction.

However, this target I-1: Due to the conditions of the competition rules and the location where it is used, only targets made in the United States are used, and targets made of materials to replace this are not yet in a state where they can be put to practical use.

Therefore, although some attempts have been made to create targets that are similar to conventional clay targets when in use and can be easily cleaned up after shooting, there are still many targets formed from shooting ranges. It has some problems and has not reached the stage where it can be put into practical use.

The present invention was made in view of the current situation, and uses water as the main raw material, which can be left for seven days without having to melt and clean up after a shooting competition, to form ice and make wooden targets. The object of the present invention is to provide a method and device for supplying a target ejector with as little influence from the outside air as possible, and which can be used rationally as a flying target. .

In the present invention, wood pieces crushed to an appropriate particle size are prepared and supplied to a raw material receiving section of a target molding machine that rotates intermittently near a target dispensing machine. A male mold and a female mold for target molding were both movable up and down in the receiving part, and were assembled at equal intervals of 1d, and in this molding machine, the male mold placed on the lower side of the cylinder was lowered. In this state, the required amount of crushed wood pieces is put into the cylinder, and then the female die from the upper side is inserted into the cylinder and pressed down, and pressed into the desired shape with the upper and lower drawing racks to form the specified wooden piece. After that, the male mold is raised to the highest position, and the upper surface of the target molded in the center of the female mold, which has been connected to the vacuum pump via a switching valve, is raised to the female mold side. The target released from the mold is fed directly or via a chute to the projection position of the target dispensing machine, and when releasing the target molded and held by this female mold, the vacuum suction force is released and the target is placed on the supporting position. These operations are sequentially performed during intermittent separation.

In addition, in the present invention, as a device for continuously supplying ice targets to a target thrower, a vertical axis is provided on the machine stand installed near the target thrower. A rotary support plate that is supported and rotates intermittently is provided, and a plurality of press cylinders are arranged equally on the circumference drawn with a required radius on the rotary support plate, and a lower part of the press cylinder is placed in the cylinder. A lower mold that is raised and lowered by a cam is inserted into the press cylinder, and an upper mold that is operated by a power cylinder is disposed above each press cylinder so that it can be freely inserted into and removed from the press cylinder. The operating power cylinder of the 77 can be moved intermittently by a linear reciprocating drive body a required distance outward from the center of rotation of the aircraft, so that it advances and retreats at a position facing the projection part of the target thrower. , and at least one intake/exhaust hole is bored in the Kooto of the upper mold, and this intake/exhaust hole is connected to a pressure reduction source and a pressurized air supply source via a switching valve, so that the press cylinder is not exposed to any pressure. The inserted lower mold for molding is at the lowest position at the crushed ice receiving round position, and at the highest level at the position just before the supply position to the dispensing machine. The mold is lowered after the crushed wood receiving position and placed at the supply position to the projection section of the dispensing machine or directly there.
The structure is equipped with a control mechanism that controls the height to rise.

The periphery of the rotary support plate on which the press cylinder is arranged or the outer periphery of the cylinder is kept insulated or kept in a low-temperature atmosphere so that the molded product is hardly affected by the outside temperature.

Hereinafter, the present invention will be described in detail with reference to the drawings regarding one embodiment.
Figures 1 to 6 show a specific example of a device for carrying out the method of the present invention, which is mounted on a base so as to be installed adjacent to the target projection part of a conventional clay discharger. A vertical shaft (2) stands in the center of the base (1), and this vertical shaft (
2) A rotating support plate (3) that can be freely rotated via a bearing in the center.
is supported, and the rotary support plate (3) has a plurality of press cylinders (lO) equally divided at a required radius from the center (eight in the example) and arranged with their axes perpendicular to IB. . The inner diameter of each press cylinder is approximately equal to the outer diameter of the target to be obtained, and the length is dimensioned to have a capacity sufficiently larger than the required amount of granulated water pieces that will be the raw material for molding. Lower mold (11) f which becomes a predetermined target forming male mold from the lower side
: It is slidably inserted, an operation support rod (1) is integrally attached to the center of the lower side, and a cam roller is rotatably attached to the lower end of this operation support rod (1) via a fork piece 04. This cam roller (C) is in contact with an annular cam (4) of 1ζ shape with continuous vertical difference so that 10 subordinate molds (11) can perform the required operation wJ on the base (1). Rotating support plate (
3), transmission is transmitted on the cam (4).

Above each press cylinder (10) of the rotary support plate (3), the press cylinder! Suitable from the top of 10+
The base bosses +g+ are fixed to the rotating support plate (3) at intervals of J, and the support body (6) has radially protruding arms (6') (the whole may be a P] plate). A saw cylinder glyph for operating the upper die is respectively installed upright, and the piston rond Y6 lower part of the saw cylinder 11 is located at the upper 4 which is a female die facing the lower die 111!
4) is housed in the upper mold opening, and at least one ventilation hole (1) is drilled into the upper mold opening toward its downward center. The hoses for long-term care are being stretched by hand, and each intake and exhaust hose (+m
is connected to a vacuum pump (not shown) and a pressurized air supply source via switching valves housed in the upper part of the vertical shaft I21, respectively, at required intervals.

In addition, 6 upper die operation power cylinders 5) il-1, 2nd
As shown in Figures 4 to 6, an arm (6) protruding from the support 15) is supported in a reciprocating manner in the radial direction, and the arm (6') Cylinder + 10) and the buff cylinder for upper die operation (in order to match the shaft center with the country, the sliding flange Ju
By making contact with the positioning piece provided on the underside of the arm (5), the 6 pieces are aligned, and the length from the straight line to the tip is bifurcated, and the Suri-kiri 7 lunge Uη is the arm (5). 6) It engages with the guide groove 1181 provided on the lower side to enable sliding, and is designed to absorb the reaction force during pressing. Then, between the same side of the seven sliding langes dη at the center of the machine body and the support boss (g), a driving body (for example, an air cylinder) for preventing the upper mold from moving laterally is placed at a length of 7 inches. Connect the power cylinder for operating the upper mold and upper tJ!, J41 to J81 before guiding the arm.
d to move outward.

The rotary support plate (3) and the support body (5) for each power cylinder as described above are connected to the ratchet gear t21+K attached to the lower center of the rotary support plate (3) by air. An intermittent assist operation mechanism that can rotate the required four-way rotation angle using a shilling (or other reciprocating part or cutting body). is being done. Then, on the outer side of the recirculation support embankment facing the target/receiving position relative to the projection blade of the target ejector, there is a 1 (Include a pair of guide rails (towards) that can support and guide the upper type operating power cylinder, 7 lunges, and the required length of the base (1)
The support is provided so that it can communicate with the guide groove and cheek of the arm 15'. A chute □□□ that can be used to inject the required amount of crushed water pieces into the press cylinder 110) is provided in the cold area so as to be able to aim at the direction of the cut from the operation part.

Note that the upper mold fits into the piston rod 151 of the power cylinder 051 at the most advanced position via the sliding flange 07) by the driver along the aforementioned friend guide Vζ.
The device is installed so that the lowered position of 14) is on the projection vane of the target ejector, and the device is installed in relation to the position 1d.
Each cutting operation and each operation of the intake and exhaust fluids connected to the upper mold 041 are performed by switching the supply and discharge of pressure fluid using a switching valve according to a preset order. Each time the rotary support plate (3) and the support body (5) are rotated by one displacement angle, pressurized fluid is supplied to and discharged from each part by opening the switching valve. (6) The attached power cylinder is configured to rotate in a retracted state.

Next, a description will be given of the operation #J up to the point where the target is supplied to the ejector by the apparatus of the present invention.

First, a small crusher is used to send out wood chips from an ice maker (or a stocker for small ice cubes) installed at a separate location (which may be installed adjacent to the device of the present invention if necessary). The ice is then crushed into thin pieces, which are conveyed to the apparatus of the present invention via a conveying pipe, and the required amount is fed into the press shilling Wakkanai from the chute □□□. The amount of ice chips (a) to be fed is measured in advance by a measuring device (for example, a rotary scale) installed in front of the chute □□□, and the pieces are fed into the cylinder (101) via the chute C112. At this point, the female lower mold (11) is located at the inner bottom of the press cylinder (10), and the upper mold (u4) is located above (see FIG. 7). K like this and a thin piece of ice (a)
While the press cylinder 1lQl that has received the press cylinder 1lQl is displaced one pitch vJ, the upper mold α is lowered by the operation of the power cylinder for operating the upper mold on the side of the support (6), and the upper mold
(I4) is inserted into the cylinder head, Mayu lower type +11)
is also pushed up in the upward direction by the cam (4) via the cam roller Ll4. Then, during the next one pitch, the lower die (11) was pushed up through the upper die 041 by the power cylinder tilt and the cam roller (1 pitch) by the cam (4), and the lower die (11) was put into the press cylinder (lO). The thin ice pieces (a) are compressed on both the upper and lower sides by the upper mold U< and the lower mold -11),
The compressive force of both dies forms the mold into a predetermined shape with a spacing commensurate with the required stroke (see FIG. 9). When making this, the thin pieces of wood (a) are strongly compressed, and as the pieces join together, some of them melt due to the friction caused by the pressure and the liquefaction effect of the compression, and each piece of wood joins together. At the same time as they are molded, all the pieces of mesh immediately freeze and become a single piece, and at this time, the air contained between the pieces of ice is compressed and mixed together as fine air bubbles. If necessary, the visual effect during projection can be enhanced by adding something like stone powder.

In this way, when the small ice pieces are compressed into the acid form and the required target (T) is formed, as shown in FIG. When the lower mold Hu'H and the upper mold I are moved to their original positions, the upper mold; Switching valve! Connected through the four cylinders, the top surface of the molded target (T) is connected to the upper mold (14
The lower mold (11) quickly returns to its original position. In addition, just before the position opposite to the supply position to the target release machine, the upper mold (1 荀 is a press shilling:
10) The molded target (T) is made to stay inside and is kept on standby, preventing it from coming into contact with the outside air.

Next, while the upper mold 114) rotates one pitch and reaches the supply position, the upper mold 114) operates the bass cylinder (field 1).
(Figure 11). When the supply position is reached, the driver (air cylinder) Nishiki receives the 111 operation command and slides, 1η all arms (55 guide grooves J4 K G, exactly opposite to the target thrower side) A cut was made on the side of the guide rail to be relayed, and when the drive sapling II curved one stroke, it reached the top of the projection blade (A) of the target thrower (shown in Fig. 12 A). With the driving body lifting operation τ stopped, move the u-bar saw cylinder/national piston rod 04 down and place the target (T) secured on the lower surface of the upper die in a position close to the upper surface of the projection blade (4). (shown by the chain line (A) in Figure 12).When this state is reached, the suction action by the vacuum pump via the suction and exhaust hose connected to the top of the tank is removed at a separate location. The automatic switching valve (not shown) is activated to stop the operation, and then the pressure air source is switched on to blow out pressurized air from the upper mold and Oka ventilation holes IQ, and the standard (T ) is placed on the top surface of the projection blade body). Immediately after the supply of this molding target is finished, the upper mold t14) rises, and the power cylinder (+51 sliding flange η) is pulled back from the guide rail diagram into the guide groove ui of the arm product by the driver 4. When the last retreat is completed, the sliding movement 7 lunge Ilη
The rear end comes into contact with the positioning piece ul+iq, and the center of the power cylinder matches the center of the press cylinder (1 (support)), and the power cylinder stops and returns to the standby state. (6) Press cylinder i0] in the next position sequentially as it rotates with
Targets are created one after another by repeating the process, and then supplied to the throwing machine.

In order to carry out the method of the present invention smoothly, the outer periphery of the press sill attached to the rotary support plate or its surroundings should be provided with heat insulating and cooling means (7) in a manner that does not interfere with operation. It is preferable to cover the entire area with a heat insulator.

As described above, according to the present invention, the target is shaped by ice,
In order to be able to immediately supply it to the target ejector and use it for shooting competitions, it is possible to place it as a small device next to the target ejector and use it for shooting competitions, and it is formed by mixing conventional pitch etc. This solved the problems associated with clay targets, was relatively low cost, and could be manufactured in the required quantity at the launch site for immediate use, making it possible to process targets rationally. In the case of a good wooden target, the air trapped inside the compression molded special part becomes fine bubbles and is mixed together as shown in Figure 13, so when the target is shot, these bubbles (b) cause a whitening state. Then,
Since the flight of the target can be clearly seen, the desired objective can be achieved without any hindrance.

Note that if it is not possible to directly supply and place the target molded product from the molding machine to the discharge machine, a chute may be interposed so that the target molded product can be supplied to a predetermined position of the projection blade.

In addition, in accordance with the spirit of the present invention, the present invention is not limited to the above embodiment, and it is also possible to configure the target dispensing machine so that it is distributed and supplied to one adjacent target dispensing machine, and in this case, the press It is configured to increase the distribution of cylinders, and if necessary, the molded target is transferred to one of the dispensing machines by a relay conveyance mechanism.

What is necessary is to supply it to the projection vane position.

Furthermore, in an appropriate section before supplying the shaped target to the projection blade of the throwing machine, a gas body is used to cool the unshaped target to lower its temperature; It is more effective if the shape is stabilized while being supplied to the projection blade and being projected. Note that the gas used in this operation is preferably as inert as possible.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, and are shown in @1 Figure t.
: The original (7) ice? ! FIG. 2 is a plan view of FIG. 1, FIG. 3 is a diagram showing the intermittent feed mechanism, and FIG. 4 is a longitudinal cross-sectional view of the main parts of the target manufacturing method. 5 is a view showing the lateral feed mechanism of the upper mold operating section, FIG. 6 is a W-VI view of FIG. 4, and FIGS. Diagram showing the operation mode up to supply, 1st
Figure 3 is a longitudinal cross-sectional view of the obtained target. +1)...base (2)...vertical
Shaft (3)...Rotating support plate (4)...Ka
(5)...Support for each part for upper die operation (6)...7-A (101...Press cylinder 111)...Lower die +12
1... Operation support rod 1131... Cam roller
11 (capital)...Kamibori (kawa...power cylinder for upper die operation 6...piston rond (1→...iii)
'A Hole, 6...Hose for intake and exhaust Jη...
・Sliding flange (119...positioning piece (1
Hiroshi...Guide Groove-1...Driver for lateral movement
Hanging...Intermittent rotation operation mechanism diagram...Guide rail
II+... Sahot (9)... Shoot
Switching valve (a)...Small water fragment (
1))...Bubble (T)...Target (
A)...Projection blade agent Masayuki Miki, Figure 7, Figure 8, Figure 10

Claims (1)

[Claims] 1. Wood chips crushed to an appropriate particle size are supplied to a raw material receiving section of a target molding machine that operates intermittently near the target dispensing machine, and the target molding machine is configured to receive cylinder-shaped pieces of wood. A plurality of sets of male and female molds for target molding are arranged at equal positions so as to be vertically movable, and when the male mold placed at the lower side of the press cylinder in this molding machine is lowered, A required amount of crushed wood chips is put into the cylinder, and then a female die is inserted into the cylinder from above and pressed down into the desired shape with an up-and-down die to form a predetermined wooden target, followed by a male die. After raising the target to the upper level, the upper surface of the target formed in the center of the female mold, which was previously connected to a negative pressure source via a switching valve, was adsorbed to the mold and raised, and the M-shaped target was changed from the male mold to the upper surface. A method for manufacturing a projection target, characterized by supplying and placing the target onto the projection blade of a target projection machine directly or via a chute after releasing suction and holding by a female die, and performing these operations sequentially while moving intermittently. . 2. A rotary support plate whose center is supported by a vertical shaft and rotates intermittently is installed on the base placed near the target thrower, and a target is drawn with the required radius on the rotary support plate. A plurality of press cylinders are arranged equally on the circumference, and a male lower die that is lifted and lowered by a cam is inserted into the press cylinder, and the lower die is inserted into the press cylinder at the upper position of the press cylinder. The upper die, which is a female die that is operated by a power cylinder, is removably fitted to the press cylinder, and the upper die and the operating power cylinder are spaced a required distance outward from the center of rotation of the machine body in a straight line. The upper mold is made to be intermittently movable by a reciprocating drive body so as to move forward and backward at a position facing the projection part of the target thrower, and at least one ventilation hole is provided in the center of the upper mold through a switching valve. The lower die inserted into the press silling is placed at the lowest position at the shredded wood receiving position and at the highest level just before the supply position to the projector. It is characterized by having a control mechanism in which a throwing roller with a connected spout end is associated with a cam, and the upper die is controlled to descend after the shredded wood piece receiving position and rise just before the supply position to the throwing machine. Projection target manufacturing equipment.