JP6796940B2 - Nail gun for manufacturing game machines - Google Patents

Description

The present invention relates to a nail gun for manufacturing a game machine, particularly a nail gun for manufacturing a pachinko machine.

A large number of nails are driven into the game board, especially the game board for pachinko. There is an apparatus described in Patent Document 1 as a device for driving a large number of nails in this way. The device of Patent Document 1 is composed of a table on which a game board is positioned and mounted, and a set of a nail holder mechanism, a hammer mechanism and a nail supply mechanism arranged above the table, and a position for driving a nail based on nailing data. The game board is moved vertically and horizontally in a plane according to the order, the predetermined position of the game board is positioned and stopped below the nail holder mechanism, and the nails supplied from the nail supply unit to the nail holder mechanism are moved to the game board by the hammer mechanism. It is something to be driven into. In the above device, the nailing angle is a constant angle substantially perpendicular to the game board.

In recent years, there has been a demand for finely changing the nailing angle depending on the position of the nail in order to control the falling path of the driven steel ball. In addition, it can be changed to the optimum nailing angle in order to cope with the slight warping, expansion and contraction, etc. of the veneer plate game board, or in response to the position deviation, angle deviation, etc. of the pilot hole in the resin game board. It came to be required to do so.
Therefore, a spacer or the like is inserted on the mounting surface of the column that supports the entire assembly of the nail holder mechanism, the hammer mechanism, and the nail supply mechanism to change the nailing angle. This has a problem that it takes time to insert a spacer or the like so as to have a desired angle. Therefore, the device of Patent Document 2 has been developed, and although it discloses that the nail holding device 40 is tilted to drive a nail, the tilt angle is not easily changed.

Japanese Unexamined Patent Publication No. 10-108947 Japanese Unexamined Patent Publication No. 2000-245907

In view of the above problems, an object of the present invention is to provide a nailing device for a game machine capable of easily changing the nailing angle.

According to the invention of claim 1.
A game board holding table on which the game board can be placed and the game board can be positioned and held at a desired position,
A nail supply mechanism that supplies nails and
A first nail holder that holds the nails supplied by the nail supply mechanism, and
A second nail holder that receives a nail from the first nail holder and moves to a nailing point,
A hammer mechanism for driving a nail held in the second nail holder into a predetermined position on the game board,
A nailing mechanism holding frame in which the first nail holder and the hammer mechanism are coupled,
In addition to being attached to the nailing mechanism holding frame, it is provided with an angle adjusting support mechanism for adjusting and supporting the angle of the nailing mechanism holding frame with respect to the game board holding table.
The angle adjustment support mechanism
A first angle adjusting mechanism that rotates the nailing mechanism holding frame around a fulcrum axis, and
It has a second angle adjusting mechanism for holding the nailing mechanism holding frame rotated by the first angle adjusting mechanism.
Nail guns for manufacturing game machines are provided.

According to the invention of claim 2.
It said first angle adjusting Seiki structure causes the one before Symbol nailing mechanism support frame at a position between one we release the fulcrum shaft on the side of against the game board holding table rotation of the fulcrum shaft,
The second angle adjustment mechanism that holds the front Symbol nailing mechanism holding frame on the other positions between whether we release the fulcrum shaft on the side of the fulcrum shaft.

According to the invention of claim 3.
At least one of the said second angle adjusting mechanism of the first angle adjusting mechanism, a wedge mechanism, is constituted by any one of a linear motion mechanism and a non-circular cam mechanism.

According to the invention of claim 4.
The first angle adjusting mechanism includes a motor that rotationally drives the fulcrum shaft.
The second angle adjusting mechanism holds the nailing mechanism holding frame at a position separated from the fulcrum shaft on the other side of the fulcrum shaft .

According to the invention of claim 5.
Having the second angle adjusting Seiki structure spring.

According to the invention of claim 6.
Wherein the position of the game board holding table, the angle of the nailing mechanism holding frame, further Ru a control device that adjusts based on the stored data.

According to the invention of claim 7.
Wherein said data to be stored in the control device, as measured by the measuring device you corrected by data processed by the image processing apparatus.

It is a figure which shows schematicly about the whole structure of this invention. (A) It is a figure before tilting of the nailing mechanism holding frame of 1st Embodiment. (B) It is a figure after tilting of the nailing mechanism holding frame of 1st Embodiment. (A) It is a figure before tilting of the nailing mechanism holding frame of 2nd Embodiment. (B) It is a figure after tilting of the nailing mechanism holding frame of 2nd Embodiment. (A) It is a figure before tilting of the nailing mechanism holding frame of 3rd Embodiment. (B) It is a figure after tilting of the nailing mechanism holding frame of 3rd Embodiment. (A) It is a figure before tilting of the nailing mechanism holding frame of 4th Embodiment. (B) It is a figure after tilting of the nailing mechanism holding frame of 4th Embodiment. It is a flowchart of nailing by the apparatus of this invention including the correction of data.

First, with reference to FIG. 1, the overall structure of the apparatus according to the present invention will be described.
What is indicated by 1 is the base frame. A game board holding table 2 is arranged on the base frame 1. The game board holding table 2 includes a first portion 3 fixed to the base frame 1 and a second portion 4 moved on the first portion 3 in the XY directions by a moving device (not shown). Here, the X direction is the direction perpendicular to the drawing, and the Y direction is the left-right direction of the drawing.
A game board 5 into which a nail is driven is installed at a predetermined position on the upper surface of the second portion 4 by a positioning means (not shown).

The nailing mechanism holding frame is indicated by reference numeral 6. A fulcrum shaft 7 is fixed to the nailing mechanism holding frame 6. The fulcrum shaft 7 is rotatably supported by two bearings 8 fixed on the outermost sides in the width direction extending in the direction perpendicular to the drawing with respect to the base frame 1, and the nailing mechanism holding frame 6 Is rotatable around the center P of the fulcrum shaft 7.

Above the nailing mechanism holding frame 6, the nail supply mechanism 10 for supplying nails, the first nail holder 20 for holding the supplied nails, and the nails received from the first nail holder 20, move forward and downward to nail. A second nail holder 25 that moves to a striking point and holds a nail, and a hammer mechanism 30 that strikes the held nail are arranged. The nail supply mechanism 10 includes a parts feeder 11 for storing a large amount of nails and a nail transfer unit 12 for transferring the nails to the first nail holder 20, both of which are attached to the nail driving mechanism holding frame 6.
Since the first nail holder 20 is also composed of many elements, the details are omitted and the whole is shown as a polygon, but the chuck that actually holds the nail is shown by 21.
Since the hammer mechanism 30 is also composed of many elements, the details are omitted and the whole is shown as a quadrangle, but the hammer for actually driving the nail is shown by 31.
The chuck 21 and the hammer 31 are set so that the nail is tilted and driven by a minute angle (around 5 degrees) indicated by α without adjusting the angle according to the present invention.

The up-and-down double-headed arrow 100R indicates a first angle adjusting mechanism that moves to change the angle of the nailing mechanism holding frame 6 with the center P of the fulcrum shaft 7 as a fulcrum.
The up-and-down double-headed arrow 100L is a second angle adjusting mechanism that moves to change the angle of the nailing mechanism holding frame 6 with the center P of the fulcrum shaft 7 as a fulcrum.
The details of the first angle adjusting mechanism 100R and the second angle adjusting mechanism 100L will be described in detail below for each embodiment.
In addition, what is shown by 50 in FIG. 1 is a control device that adjusts each mechanism, and stores data for nailing, for example, data such as where and how much tilted driving is performed. It also includes a storage device.

2A and 2B are diagrams for explaining the structure and operation of the angle adjustment in the first embodiment. The 110R indicates the first wedge, and the 110L indicates the second wedge.
Two guides 111R are attached to the lower surface of the first wedge 110R, and the guides 111R are slidably arranged on the rail 101 provided on the upper surface of the base frame 1. The first wedge 110R can be moved in the left-right direction in the drawing by a ball screw 112R rotated by the first servomotor 113R. The first wedge 110R has a wedge slope 114R rising to the right in the figure.

Similarly, the second wedge 110L is provided with two guides 111L on the lower surface thereof, and the guides 111L are slidably arranged on the rail 101 provided on the upper surface of the base frame 1.
A rod of a cylinder 119 attached to the first wedge 110 R is attached to the second wedge 110L, and the second wedge 110L can be moved left and right by the cylinder 119. The second wedge 110L also has the same wedge slope 114L as the first wedge 110R, which rises to the right in the figure.
On the lower surface of the nailing mechanism holding frame 6, a first follower 115R including a rotatable roller is provided on the right side of the fulcrum P, and a similar second follower 115L is provided on the left side of the fulcrum P. The first follower 115R and the second follower 115L are illustrated in circles.

(If you alpha + beta) when changing the angle as shown in FIG. 2 (B), to move the second wedge 11 0L rightward shorten the rod of the cylinder 119, then move the first wedge 110R to the left To do . Then first follower 115R is climbing the wedge slopes 114 R of the first wedge 110R, resulting raised right β fraction of the fulcrum of the nailing mechanism support frame 6, the left decreases β min, nailing mechanism holding frame 6 Tilt to the left by β minutes. Therefore, both the nail and the hammer 31 held by the chuck 21 above it are tilted to the left by β. Then put the rod of the cylinder 119, the second wedge 11 0 L moves to the left, by striking the second follower 115L, inclined nailing mechanism holding frame 6 is held. Since the game board 5 is held at an invariant angle, the nail is driven onto the game board 5 with an increased inclination.
The first wedge 110R and the second wedge 110L is because it is connected through the rod of the cylinder 119, which are both movable in the left and right by ball screw 112R is rotated by servo motor 1 13R. However, when moving, the rod of the cylinder 119 is contracted to release the tilt holding, the left-right movement of the first wedge 110R determines the tilt angle, and the second wedge 110L plays a role of holding the tilt by advancing the cylinder rod. The roles of the first wedge and the second wedge can be reversed.

A pilot hole is machined in advance on the game board 5, and the position thereof is stored in the control device 50, so that the game board 5 is positioned. The required nail driving angle at each position is also stored in the control device, the amount of movement of the first wedge 110R is calculated according to the required nail driving angle, and the first wedge 110R is moved accordingly. The desired tilt angle is obtained. The second wedge 110L moves forward after retreating to maintain the inclination.
In FIG. 2A, the nail is normally driven at a nailing inclination angle α, but in the case of FIG. 2B, the nail is driven at an inclination angle α + β including the inclination angle β of the nailing mechanism holding frame 6.
It is also possible to actually measure the pilot hole of the game board with a camera or the like and match the data stored in the control device 50 with the data measured by the image processing device, correct the stored data, and hit the data. Is.

(A) and (B) of FIG. 3 are diagrams for explaining the structure and operation of the angle adjustment in the second embodiment.
In this second embodiment, the lower surface of the nailing mechanism holding frame 6 is provided with a first protrusion receiving portion 125R on the right side of the fulcrum P and a second protrusion receiving portion 125L on the left side of the fulcrum P.
What is indicated by 120R is the first linear motion device, and what is indicated by 120L is the second linear motion device. The first linear motion device 120R has a servomotor 121R fixed to the base frame 1 and a ball screw 122R driven by the servomotor 121R and moved in the vertical direction in the drawing, and a hemispherical portion 123R at the upper end of the ball screw 122R. Is attached and presses against the first protrusion receiving portion 125R.
The second linear motion device 120L is a large-capacity cylinder.

As shown in FIG. 3B, when the angle is changed (when α + β is set), the rod of the second linear motion device 120L cylinder is contracted to release the tilt holding, and the first linear motion device 120R is operated. Raise the ball screw 122R and push the first protrusion receiving portion 125R with the hemispherical portion 123R at the upper end to raise the portion on the right side of the fulcrum P of the nailing mechanism holding frame 6, determine the inclination accuracy of β, and then perform the second linear motion. The inclination angle of α + β is maintained by raising the cylinder rod of the device 120L and pressing it against the second protrusion receiving portion 125L.

The movement amount of the first linear motion device 120R is calculated according to the nail driving angle required in the control device 50 (see FIG. 1), and the first linear motion device 120R is moved accordingly to hold the nail driving mechanism holding frame. The desired tilt angle of 6 is obtained. The second linear motion device 120L serves to maintain the tilt angle.
Similar to the first embodiment, in FIG. 3A, the nail is normally driven at the nailing inclination angle α, but in the case of FIG. 3B, the inclination angle β of the nailing mechanism holding frame 6 is set. It is driven with the added inclination angle α + β.

As the second linear motion device 120L, a wedge mechanism directly connected to the cylinder shown in FIG. 4 described later and mounted on an LM (linear motion) guide may be used, or a highly elastic spring mechanism shown in FIG. 5 may also be used.

FIGS. 4A and 4B are diagrams for explaining the structure and operation of the angle adjustment in the third embodiment.
In this third embodiment, a non-circular cam is used on one side and a wedge is used on the other side.
Indicated by 130L is a non-circular cam. The non-circular cam 130L is coupled to a shaft 131L rotatably supported by the base frame 1, and a belt gear 132L is also coupled to the shaft 131L. The belt gear 132L is connected to the belt gear 136L coupled to the shaft 134L of the motor 133L fixed to the base frame 1 by a timing belt 137L.
In the third embodiment, on the lower surface of the nailing mechanism holding frame 6, a first follower 135R including a roller that can rotate to the right side of the fulcrum P is provided on the lower surface of the fulcrum P, as in the first embodiment. A similar second follower 135L is provided on the left side.
By rotating the non-circular cam 130L, the distance from the center of the shaft 131L at the point in contact with the second follower 135L changes, and the second follower 135L moves up and down accordingly to change the angle of the nailing mechanism holding frame. .. The wedge 130R is configured to move left and right by moving in and out of the cylinder rod 139 in the same manner as the second wedge described above.

(B) of FIG. 4 shows that when the angle is changed (when α + β is set), the cylinder rod 139 is first retracted, the wedge 130R is moved to the right, and the nailing mechanism holding frame 6 is held. To release. Next, by rotating the non-circular cam 130L and changing the nailing mechanism holding frame 6 to a predetermined angle β, the second follower 135L is lowered in this case, and the angle of the nailing mechanism holding frame 6 becomes α + β. The cylinder rod 139 is advanced again, the wedge 130R is moved to the left, and the wedge 130R is brought into contact with the first follower 135R to hold the angle of the nailing mechanism holding frame 6 at α + β. As the angle holding mechanism, the linear motion mechanism directly connected to the cylinder shown in FIG. 3 or the highly elastic spring mechanism shown in FIG. 5 can also be used.

The amount of rotation of the non-circular cam 130R is calculated according to the nail driving angle required in the control device 50 (see FIG. 1), and the non-circular cam 130L is moved accordingly to the desired nailing mechanism holding frame 6. The tilt angle is obtained. The wedge 130R serves to maintain the inclination angle.
Similar to the first embodiment, in FIG. 4A, the nail is normally driven at the nailing inclination angle α, but in the case of FIG. 4B, the inclination angle β of the nailing mechanism holding frame 6 is added. It is driven with an inclination angle of α + β.

FIGS. 5A and 5B are diagrams for explaining the structure and operation of the angle adjustment in the fourth embodiment.
This fourth embodiment has a rotation mechanism 140 that directly rotates the fulcrum shaft 7 passing through the fulcrum P of the nailing mechanism holding frame 6. First. A fulcrum shaft 7 passing through a fulcrum P of the nailing mechanism holding frame 6 is extended, and a first gear 141 is attached to the fulcrum shaft 7. The first gear 141 meshes with a second gear 142 having a small diameter attached to an intermediate shaft 145 supported by a bearing (not shown) attached to the base frame 1. A third gear 143 having a large diameter is also attached to the intermediate shaft 145. The third gear 143 meshes with a small-diameter fourth gear 144 attached to a shaft 147 of a motor 146 (not shown) attached to the base frame 1.

When the shaft 147 of the motor 146 is rotated counterclockwise (counterclockwise), the fourth gear 144 also rotates counterclockwise (counterclockwise), the third gear 143 rotates clockwise, the second gear 142 also rotates clockwise, and the first The gear rotates counterclockwise, and the nailing mechanism holding frame 6 rotates counterclockwise to a downward-sloping state.

On the other hand, what is shown by 140S is a highly elastic spring mechanism. The reaction force when the spring mechanism 140S is nailed is received, and the nailing mechanism holding frame 6 is prevented from rotating more than it is rotated by the rotating mechanism 140.
The amount of rotation of the motor 146 according to the nail driving angle required in the control device 50 (see FIG. 1) is calculated, the motor 146 is rotated accordingly, and the desired inclination angle of the nailing mechanism holding frame 6 is set. can get.

As described above, the first to fourth embodiments have been described, but in any case, they are installed in pairs at the outermost ends on both sides in the axial direction extending in the direction perpendicular to the figure of FIG. 1 with respect to the base frame 1. To. Further, based on these, various combinations not described can be made, and modifications can be made within a range not contrary to the gist of the present invention. For example, in the first embodiment, the wedges can be used in opposite directions, or a combination of the wedge and the servomotor can be used. Further, the angle holding mechanism can be combined with a wedge mechanism directly connected to the cylinder, a linear motion mechanism by the cylinder, and a highly elastic spring device.

It is possible to execute nailing while measuring the data stored in the control device 50 with the measuring device and correcting it with the data processed by the image processing device, and the flowchart is shown in FIG. I will explain it.
In step 1, the nail data is read. In step 2, N is set to 1 as the initial value. In step 3, it is determined whether or not image measurement is necessary for the Nth nail. If an affirmative judgment is made in step 3, the process proceeds to step 4, and if a negative judgment is made, the process proceeds to step 7.
In step 4, the image is moved to the image measurement position of the Nth nail, in step 5, the image of the Nth nail is measured, in step 6, the Nth nail position correction calculation is performed, and the process proceeds to step 7.
In step 7, the nail is moved to the position of the Nth nail, and in step 8, the Nth nail is driven and the process proceeds to step 9.
In step 9, it is determined whether or not the final nail driving is completed. If affirmative judgment is made, the process proceeds to step 10 to return to the origin position, and then the process proceeds to step 12 to end. If a negative determination is made, N is incremented to N + 1 in step 11 and the process returns to step 3.

1 Base frame 2 Table 5 Game board 6 Nail driving mechanism holding frame 10 Nail supply mechanism 12 Nail transfer part 20 1st nail holder 25 2nd nail holder 30 Hammer mechanism 31 Hammer 50 Control device 60 Image processing camera 100R 1st angle adjustment Mechanism 100L 2nd angle adjustment mechanism 110R 1st wedge 110L 2nd wedge 115R 1st follower 115L 2nd follower 120R 1st linear motion device 120L 2nd linear motion device 121R Servo motor 122R Ball screw 130R Wedge 130L Non-circular cam 133L Motor 137L Belt 140 Rotation mechanism 140S Spring mechanism 141, 142, 143, 144, 145 Gear 146 Motor P fulcrum

Claims (7)

A game board holding table on which the game board can be placed and the game board can be positioned and held at a desired position,
A nail supply mechanism that supplies nails and
A first nail holder that holds the nails supplied by the nail supply mechanism, and
A second nail holder that receives a nail from the first nail holder and moves to a nailing point,
A hammer mechanism for driving a nail held in the second nail holder into a predetermined position on the game board,
A nailing mechanism holding frame in which the first nail holder and the hammer mechanism are coupled,
In addition to being attached to the nailing mechanism holding frame, it is provided with an angle adjusting support mechanism for adjusting and supporting the angle of the nailing mechanism holding frame with respect to the game board holding table.
The angle adjustment support mechanism
A first angle adjusting mechanism that rotates the nailing mechanism holding frame around a fulcrum axis, and
It has a second angle adjusting mechanism for holding the nailing mechanism holding frame rotated by the first angle adjusting mechanism.
Nail gun for manufacturing game machines. It said first angle adjusting Seiki structure causes the one before Symbol nailing mechanism support frame at a position between one we release the fulcrum shaft on the side of against the game board holding table rotation of the fulcrum shaft,
The second angle adjustment mechanism that holds the front Symbol nailing mechanism holding frame on the other positions between whether we release the fulcrum shaft on the side of the fulcrum shaft,
請Motomeko game machine for the production of nailing machine according to 1. At least one of the said second angle adjusting mechanism and the first angle adjusting mechanism, a wedge mechanism, is constituted by any one of a linear motion mechanism and a non-circular cam mechanism, for a game machine manufactured according to請Motomeko 2 Nail gun. The first angle adjusting mechanism includes a motor that rotationally drives the fulcrum shaft.
The second angle adjusting mechanism holds the nailing mechanism holding frame at a position separated from the fulcrum shaft on the other side of the fulcrum shaft.
請Motomeko game machine for the production of nailing machine according to 1. Having the second angle adjusting Seiki structure spring,請Motomeko 2 or game machine for manufacturing nailer according to 4. The position of the game board holding table, the angle of the nailing mechanism holding frame, the stored data in the Ru further comprising a control device on the basis of adjustment, the gaming machine according to any one of 5請Motomeko 1 Nail gun for manufacturing. The data stored in the control device, as measured by the measuring device for correcting the data processed by the image processing apparatus, a game machine for producing nailer according to請Motomeko 6.

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