JPH056055Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention mixes out-of-out pachinko balls collected from a game machine with abrasive grains in a lower tank, and then lifts and polishes them while stirring them in a polishing cylinder. The polished pachinko balls are sorted by the upper sorting device and then supplied to the game machine, and the abrasive particles sorted from the pachinko balls fall down the descent path and are directly returned to the lower tank, or if the abrasive particles become dirty. This is an abrasive grain switching control for a pachinko ball transport device that has an abrasive grain circulation path in which the falling direction is changed to an auxiliary path, the abrasive grains are guided to an abrasive grain cleaning machine, and the clean abrasive grains from which dirt has been removed are returned to the lower tank. Regarding the mechanism.

(Prior art) Conventionally, to remove dirt from pachinko balls used in pachinko machines in pachinko parlors and medals used in pachislot machines, water and detergent were used to stir and wash them. Recently, a pachinko ball lifting device has been developed that mixes pachinko balls and medals with synthetic resin or rubber abrasive particles, stirs the mixture, and uses the synergistic effect of friction and heat generation to adsorb dirt to the abrasive particles.

The above-mentioned pachinko ball lifting device is installed on each island in the amusement park, and depending on how dirty the abrasive particles are, the abrasive particles are taken out from the device and washed with an abrasive particle washer and reused. Alternatively, a method was adopted in which the abrasive grains were replaced with new abrasive grains.

(Problem that the invention aims to solve) However, in order to replace or clean the abrasive grains of the pachinko ball lifting device installed on each island of the pachinko game center, the clerk must do it after the store closes and the pachinko ball lifting device is installed. Preparation work to remove the play table of the part,
Next, it takes labor and time to take out the dirty abrasive particles and perform a cleaning process using an abrasive particle washer, return the abrasive particles after cleaning into the device, and restore the play table after the work is completed. Therefore, there has been a demand for the development of a pachinko ball lifting device equipped with an abrasive grain washer that can remotely control the flow of abrasive grains to clean them without removing the dirty abrasive grains.

In order to solve the above-mentioned problems, this invention has developed an abrasive grain switching control for a pachinko ball transport device that can clean the abrasive grains without taking them out by automatically switching the flow of abrasive grains by remote control. The purpose is to provide a mechanism.

(Means for solving the problem) In order to achieve the above object, the abrasive grain switching control mechanism of the pachinko ball transport device of the present invention mixes the collected pachinko balls with abrasive grains in the lower tank, and Pachinko balls and abrasive grains are sorted by the upper sorting device, and the abrasive grains either fall down the descent path and return directly to the lower tank, or the direction in which the abrasive grains fall is In a pachinko ball lifting device that forms an abrasive grain circulation path in which the abrasive grains washed by the abrasive grain cleaner are returned to the lower tank by switching from the descending path to the auxiliary path, below the branching point of the auxiliary path of the descending path. A blocking plate is provided with a passing window for abrasive grains to pass through, and a drop window similar to the passing window of the blocking plate is provided at the rear with a sliding groove in the front and is clamped to the blocking plate for reciprocating movement. A slide that includes an opening/closing plate and a rotating disk that is shaft-mounted on the blocking plate and rotationally driven by a motor, and engages with the slide groove at an eccentric position of the rotating disk to convert the opening/closing plate into forward and backward movement. A pin is provided protrudingly, and a step-like step section is provided on one part of the outer periphery of the rotating disk toward the rotating shaft, and a limit switch that slides on the outer periphery of the rotating disk and is switched at the step section is rotated. A switching device is provided on the blocking plates on both sides of the outer periphery sandwiching the disk in the center, and when the slide pin of the rotary disk rotated by the motor rotates approximately 180 degrees by pressing the button on the external changeover switch. The opening/closing plate is moved backward → forward (the abrasive grain passage window is open → closed) or forward → retreat (the abrasive grain passage window is closed → open), and the rotating disc rotates approximately 180 degrees. The motor is configured to stop and control the motor by alternately switching the limit switches on both sides.

(Function) In the present invention, when the remote-controllable changeover switch is pressed, the slide pin of the rotary disc rotated by the motor moves backwards and forwards through the opening and closing plate through the slide groove (the abrasive grain passage window opens and closes). ) or forward → backward (the abrasive grain passage window is closed → open), and
The motor stops at the stepped part of the rotating rotary disk by switching the limit switches on both sides alternately every half turn, so that the falling abrasive grains are removed from the passing window ``open''.
When the abrasive grains are closed, the abrasive grains are returned directly to the lower tank, and the abrasive grains are cleaned by the abrasive grain washer and then returned to the lower tank when the passing window is closed. Just by operating it, you can always get beautifully polished pachinko balls.

Furthermore, this pachinko ball transport device installed on each island can be operated all at once from a central control panel inside the prize counter, reducing the labor burden on store staff after the store closes, increasing the personnel efficiency of amusement hall management. Appropriately successful.

(Embodiment) An embodiment of the abrasive particle switching control mechanism of the pachinko ball transport device according to the present invention will be described in detail based on the drawings.

Figures 1A and 1B are partially cutaway perspective views showing the internal structure of this device, Figures 2 and 3 are plan views showing the operating state of the opening/closing plate, and Figures 4 and 5 are views of the opening/closing plate. FIG. 6 is an external view of the pachinko ball lifting device to which the present invention is applied, FIG. 7 is an electric circuit diagram, and FIG. 8 is an operation chart of the main parts.

In the pachinko ball lifting device A shown in Fig. 6, the collected pachinko balls are mixed with abrasive grains in a lower tank B, lifted and polished in a polishing cylinder C while being stirred, and pachinko balls are removed by a sorting device D in the upper part. The balls and abrasive grains are sorted out, and the abrasive grains fall down the descent path 1 and are directly returned to the lower tank B for reuse. An auxiliary path 2 is provided which branches into a bifurcated shape midway near the center of the descending path 1 and leads to the abrasive grain washer E. When the abrasive grains become heavily contaminated and need to be cleaned, this auxiliary path 2 is used to remove the abrasive grains from the abrasive grains when the switching device F blocks the abrasive grains falling in the descending path 1. A passage leading to the washing machine E,
The washed abrasive grains are returned to the lower tank B and reused.

The switching device F described above is configured as explained below. As shown in Figures 1A and 1B,
A blocking plate 3 is provided immediately below where the auxiliary path 2 of the descending path 1 branches.

This blocking plate 3 has a rectangular passage window 5 in the center through which abrasive grains pass, and is made up of two upper and lower plates with a space 4 between them, and a notch 6 is formed at the front end. , straddle this notch 6 and insert the underframe 10.
is attached (see Figures 2 and 3).

Reference numeral 7 denotes an opening/closing plate which is reciprocatably mounted in the space 4 of the blocking plate 3. A slit groove 9 is bored in the shape of a horizontally long hole near the tip of the opening/closing plate 7.
A drop window 8 similar to the passage window 5 is bored in a rectangular shape. This drop window 8 has an opening/closing plate 7 and a blocking plate 3.
It is provided at a position and size that matches the passage window 5 of the blocking plate 3 when it is completely inserted into the space 4.

11 is installed rigidly on the underframe 10 by a motor,
A rotating disk 13 is attached to the tip of a rotating shaft 12 that protrudes below the underframe 10. A stepped portion 14 is formed at one portion of the periphery of the rotary disk in a stepped manner toward the rotating shaft 12, and a slide pin 15 is protruded from the lower surface of the stepped portion 14 at an eccentric position. This slide pin 15 engages in the slide groove 9 of the opening/closing plate 7 to move the opening/closing plate 7 back and forth.

That is, it constitutes a linear motion conversion means that moves the opening/closing plate 7 back and forth in accordance with the rotational movement of the slide pin 15 of the rotary disk 13 rotated by the motor 11.

Limit switches a and b are installed on the blocking plates 3 on both sides of the outer periphery of the rotating disk 13 in opposing positions with a phase of approximately 180 degrees, and the respective actuators a ₁ and b ₁ are in sliding contact with the outer periphery of the rotating rotating disk 13. , the limit switches a and b alternately and precisely switch at the stepped portion 14 every approximately 180 degrees that the rotating disk 13 makes a half turn, and the motor 11 stops, and at this stop, the opening/closing plate 7 closes the passage window in the forward position. or the rotating disk 13 so as to accurately operate the passage window “open” in the retreat position.
The mounting positional relationship between the slide pin 15, its stepped portion 14, and the limit switches a and b is set accurately.

The limit switches a and b used in this embodiment use pin push button type actuators a ₁ and b ₁ , and the action of the actuator of one limit switch and the stepped portion 14 of the rotating disk 13 will be described in detail. This actuator operates by sliding on the outer periphery of the rotating disk 13, and when it comes to a step 14 cut perpendicularly to the outer periphery of the rotating disk 13 in a step-like manner, the actuator instantly protrudes and switches with high precision. Furthermore, the shape of the stepped portion 14 in which the movement after operation is cut off at right angles in a stepwise manner creates a mechanical time advance to prevent malfunctions of the electric circuit (FIG. 7).

16 is a changeover switch that starts the motor 11, opens and closes the passage window 5, and switches the descent path 1;
It is a push-button switch whose contacts operate in conjunction with each other to self-hold, and the motor 11 is started only by operating this switch, and the lomit switches a and b are operated at the stepped portion 14 of the rotary disk 13 to stop the motor 11.

That is, the abrasive grains used to polish the pachinko balls are directly returned to the lower tank B from the descending path 1, or sent to the abrasive grain cleaning machine E through the auxiliary path 2, where the dirt on the abrasive grains is cleaned and the abrasive grains are returned to the lower tank B. The changeover of the polishing falling direction can be easily performed by the changeover switch 16, which constitutes a changeover control means for the descending path 1.

Next, the operation chart of the main parts in FIG. 8 will be explained with reference to the electric circuit diagram in FIG. 7.

In Fig. 7, 16 is an illuminated push button changeover switch whose contacts 1a and 1b are interlocked and alternately operated to indicate "open" and "closed"; a and b are limit switches; 11 is a motor; Indicates when the opening/closing plate moves forward and the abrasive grain passing window is “closed”.

The vertical axis in FIG. 8 shows the push-on position of the push button switch 16, which is a control device, and the motor
1 and limit switches a and b “ON” and “OFF”
operation, opening/closing operation of the passing window 5, and rotating disk 1
3, and the horizontal axis shows an outline of their temporal relationship based on the point in time when the changeover switch 16 is turned on.

Note that t ₁ and t ₂ are limit switches a and b.
The actuators a ₁ and b ₁ are located at the step 1 of the rotating disk 13.
4, the movement from the "OFF" position to the "ON" position is compensated for by the stepped shape to show the mechanical time delay.

First, when you press the changeover switch 16, "Open" is displayed on the illumination surface, and the 1a contact turns "ON".
Contact b is turned "OFF" and self-held, and limit switch b is turned "ON" at the same time, so the electric circuit forms a closed circuit, the motor 11 is turned "ON", and the rotating disk 13 starts rotating. Rotates approximately 180 degrees and stops. During this time, the opening/closing plate 7
At the same time as the motor moves backward, the stepped portion 14 rotates to the position of the limit switch b, and the actuator _b1 protrudes into the recessed portion of the stepped portion 14 and the limit switch b is turned "OFF", so that the motor 11 is turned "OFF" and rotation stops. In this state, the opening/closing plate 7 retreats and the passing window 5 of the blocking plate 3 matches the drop window 8 of the opening/closing plate 7, so the abrasive grains flow down the descent path 1 and directly into the lower tank B.
(Fig. 1A, Fig. 2,
(See Figure 4).

Next, when you press the changeover switch 16 again, "Closed" is displayed on the illumination surface, and the 1a contact turns "OFF".
Since the contact b is turned "ON" and self-held, and the limit switch a is turned "ON" at the same time, a closed circuit is formed in which the motor 11 is turned "ON", and the rotating disk 13 starts rotating. This rotating disk 13 is an abbreviation
While rotating 180 degrees, the opening/closing plate 7 advances through the slide groove 9 in which the slide pin 15 is engaged, and the stepped portion 14 rotates, and the actuator _a1 protrudes from the stepped portion 14, so that the limit switch a is turned “OFF” and the rotation of the motor 11 stops. In this state, the opening/closing plate 7 moves forward and the passage window 5 of the blocking plate 3
is blocked by the opening/closing plate 7, and the abrasive particles flow down from the descending path 1 through the auxiliary path 2 and are guided to the abrasive particle washer E, forming an abrasive particle circulation path in which the washed abrasive particles flow back to the lower tank B. (See Figures 1B, 3, and 5).

As explained above, the changeover switch 16 controls the opening and closing of the passage window 5 by driving the changeover device F.
used an alternate operation type in which the contacts 1a and 1b operate alternately to prevent malfunctions, but a double-throw type double-push button switch with an "open" and "close" display button may also be used. The purpose of the present invention is not hindered by the type of changeover switch.

(Effect of the invention) As explained above, in the present invention, when the changeover switch is pressed, the slide pin of the rotary disk rotated by the motor advances the opening/closing plate through the slide groove (the abrasive grain passage window closes) or At the same time, the step part of the rotating rotating disc is moved back (the window through which the abrasive grains pass is opened), and the motor is stopped by switching the limit switches on both sides alternately every half turn, so that the abrasive grains that fall are passed through the window through which the abrasive grains fall. The abrasive grain switching control is performed so that when the pass window is set to "open", the flow is returned directly to the lower tank, and when the passage window is "closed", the abrasive grain is returned to the lower tank via the abrasive grain washer, so the switch can be operated according to the degree of contamination of the abrasive grains. This has the effect of ensuring that pachinko balls are always beautifully polished, and that this device installed on each island can be operated all at once from a central control panel, reducing the labor burden on store staff after the store closes. is large.

[Brief explanation of the drawing]

Figures 1A and 1B are partially cutaway perspective views showing the internal structure of this device, Figures 3 and 4 are plan views showing the operating state of the opening/closing plate, and Figures 5 and 6 are views of the opening/closing plate. FIG. 7 is a side view showing the operating state, FIG. 7 is an electric circuit diagram, and FIG. 8 is an operation chart of the main parts. 1... Descending path, 2... Auxiliary path, 3... Blocking plate,
5... Passing window, 7... Opening/closing plate, 8... Falling window, 9
...Slide groove, 11 ... Motor, 13 ... Rotating disk, 14 ... Step portion, 15 ... Slide pin, 1
6...Switching switch, a, b...Limit switch, A...Pachinko ball lifting device, B...Lower tank, C: Polishing cylinder, D: Sorting device, E: Polishing grain washer, F...Switching Device.

Claims (1)

[Scope of Claim for Utility Model Registration] Collected pachinko balls are mixed with abrasive grains in a lower tank, pumped and polished while stirring in a polishing cylinder, and pachinko balls and abrasive grains are separated by a sorting device in the upper part. Either the abrasive grains fall down the descent path and return directly to the lower tank, or the direction in which the abrasive grains fall is switched from the descent path to the auxiliary path and the cleaned abrasive grains are returned to the lower tank via the abrasive grain washer. In a pachinko ball lifting device forming an abrasive grain circulation path, provided below an auxiliary path branch point of the descending path,
A shielding plate having a passage window through which abrasive grains pass, and an opening/closing plate having a drop window similar to the passage window of the shielding plate at the rear and a sliding groove at the front and being reciprocatably clamped to the shielding plate. , a rotating disk is provided which is axially mounted on the blocking plate and is rotationally driven by a motor, and a slide pin that engages with the slide groove and converts the opening/closing plate into forward and backward movement is protruded at an eccentric position of the rotating disk. At the same time, a step-like stepped portion is provided at one part of the outer periphery of the rotating disk toward the rotating shaft, and a limit switch that slides on the outer periphery of the rotating rotating disk and is switched at the stepped portion is provided with the rotating disk centered. A switching device is provided on the blocking plates on both sides of the outer periphery sandwiching the switch, and when the slide pin of the rotating disc rotated by the motor rotates approximately 180 degrees, the switching device opens and closes every time the slide pin of the rotary disk rotated by the motor rotates approximately 180 degrees. When the rotating disk rotates approximately 180 degrees, the stepped portions on both sides move backward → forward (the abrasive grain passage window is open → closed) or forward → retreat (the abrasive grain passage window is closed → open). An abrasive grain switching control mechanism for a pachinko ball transport device characterized by controlling a motor to stop by alternately switching a limit switch.