JP5748707B2 - Device for detecting missing parts in a gaming machine production line - Google Patents

Description

  The present invention relates to a missing part detection apparatus provided in a gaming machine production line.

  A pachinko machine, which is a typical gaming machine, assembles the main components (components) such as an outer frame, a middle frame, a game board, and a front frame, as well as the main components such as the middle frame, the front frame, and the game board. A large number of parts such as various control devices, movable effect devices, and light effect devices are assembled to the members. Thus, in the production line of pachinko machines composed of a plurality of members and parts, in order to efficiently perform a plurality of assembly steps, a plurality of assembly stations are connected by a conveying means such as a roller conveyor, and main components are connected. A plurality of parts are sequentially supplied by a conveying means, and a large number of parts are automatically assembled by an automatic assembling machine at each assembling station, or are manually assembled by an operator (see, for example, Patent Document 1). ).

JP 2002-36074 A

  When the parts are assembled to the main constituent members at the assembly station, if the parts are not sufficiently fixed or engaged with the main constituent members, the parts may fall off the main constituent members. In addition, in pachinko machines, stickers (parts) such as seal seals that seal board cases and information stickers that display model information, etc. are applied, and if the sticking power of these stickers is weak, The patch sometimes fell off from the main constituent member. And if the main components with some parts dropped are transported to the next assembly station and another parts are assembled, it will not be possible to confirm whether the parts have fallen out, and finally defective products There has been a demand for a device that can detect whether or not a part has fallen off.

  That is, an object of the present invention is to provide a dropped part detection device for a gaming machine manufacturing line that can detect that a part has dropped from a component in the gaming machine manufacturing line.

In order to overcome the above-mentioned problems and achieve the intended purpose, the invention according to claim 1 of the present application provides:
A missing part detection device provided in a gaming machine production line (10) in which various parts (18) are assembled to a component (16),
A fall object receptacle (22) disposed below the gaming machine production line (10) and opening upward;
The falling object receiver (22) is moved from the origin position toward the regulating wall (34a, 36a) along the inner bottom surface of the falling object receiver (22), thereby falling object receiver (22). A moving member (24) for bringing the inner part (18) toward the regulating wall (34a, 36a);
Drive means (26) for moving the moving member (24);
Detection means (28, 30) for detecting that the moving member (24) is located at a detection position close to the regulation wall (34a, 36a);
Determining means (64) for determining the presence of the component (18) when the condition that the moving member (24) should move to the detection position is satisfied, when the detecting means (28, 30) is not detected And the summary.

  According to the first aspect of the present invention, it is possible to detect, with a simple configuration, that a part has dropped from a component member.

In the invention according to claim 2, the detection means (28, 30) is provided as a pair separated in a direction intersecting the moving direction of the moving member (24),
The determination means (64) determines that the moving member (24) is located at a detection position when both of the pair of detection means (28, 28/30, 30) are in a detection state. The gist is to be set as follows.
According to the second aspect of the present invention, the parts received by the fallen object receptacle are brought into contact with a position that is biased to one side intersecting the moving direction of the moving member, so that the moving member is inclined in the direction intersecting the moving direction. Even in such a case, the presence of the component can be reliably detected.

In the invention according to claim 3, the falling object receptacle (22) is disposed below an assembly station (S) provided in the gaming machine production line (10),
The drive means (26) is driven after moving the component (16) from the assembly station (S), and the determination is made before the next component (16) is supplied to the assembly station (S). The gist is that the means (64) is configured to determine the presence or absence of the part (18).
According to the invention of claim 3, it is possible to specify the component member from which the part has dropped.

The gist of the invention according to claim 4 is that the upper surface of the moving member (24) is formed in an arc shape protruding upward.
According to the fourth aspect of the present invention, it is possible to prevent the component dropped from the component member from being placed on the upper surface of the moving member, and to reliably receive and detect the component in the falling object container.

  According to the omission part detection apparatus of the gaming machine production line according to the present invention, it is possible to detect the omission of parts from the constituent members.

It is a schematic perspective view which shows the fallen component detection apparatus of the game machine manufacturing line which concerns on the preferred Example of this invention. It is a schematic plan view which shows the missing part detection apparatus which concerns on an Example. It is a schematic side view which shows the missing component detection apparatus which concerns on an Example. It is a schematic sectional drawing shown by the AA line of FIG. It is a schematic side view which shows the state which has arrange | positioned the drop-off component detection apparatus below the assembly station. It is a control block diagram of the missing part detection apparatus according to the embodiment. It is explanatory drawing which shows operation | movement of the drop-off component detection apparatus based on an Example, Comprising: (a) shows the state which does not detect a component when a moving member moves to a 2nd detection position from a 1st detection position, (b) , (c) shows a state in which the component is detected by moving the moving member from the first detection position to the second detection position, and (d) is when the moving member moves from the second detection position to the first detection position. A state in which no part is detected is shown, and (e) and (f) show a state in which the part is detected by moving the moving member from the second detection position to the first detection position. It is a flowchart of the missing part detection process performed by the missing part detection apparatus according to the embodiment. It is a flowchart following step S11 in FIG.

  Next, the dropped part detecting device of the gaming machine production line according to the present invention will be described in detail below with reference to the accompanying drawings by giving a preferred embodiment. In the embodiment, a pachinko machine that plays a game using a pachinko ball (game ball) will be described as an example.

  FIG. 1 is a schematic perspective view showing a dropout component detection device 12 of a gaming machine production line 10 according to an embodiment. FIG. 5 shows a dropout component detection device 12 of a transport conveyor 14 constituting the game machine production line 10. It is the schematic which shows the state arrange | positioned below. The gaming machine production line 10 is configured by arranging a transport conveyor 14 as a transport means for transporting main structural members (constituent members) 16 constituting a pachinko machine in a required layout. An assembly station S for assembling various components 18 to the member 16 is set. In the gaming machine production line 10, the main constituent member 16 is transported to the assembly station S by the transport conveyor 14 and stopped, and the main constituent member 16 in which the assembly of the parts 18 has been completed at the assembly station S is downstream by the transport conveyor 14. Configured to transport to the side. Here, the main component member 16 constituting the pachinko machine is the main component member when the various components 18 are assembled to the middle frame, the front frame, or the game board. In the state where the front frame is assembled to the middle frame, and when various parts 18 are further assembled to the middle frame and the front frame, the members in the state where the front frame is assembled to the middle frame are the main constituent members. In the state where the front frame and the game board are further assembled to the middle frame, and when various components 18 are further assembled to the middle frame, the front frame and the game board, the front frame and the game board are assembled to the middle frame. The assembled member becomes the main component member 16. That is, the main component member 16 refers to a member that serves as a base on which various components 18 are assembled when a pachinko machine is manufactured. The part 18 is not only a game part itself such as a decorative body, a movable body, and a lamp lens assembled to the main component member 16, but also a screw or the like for fixing these game parts to the main component member 16. Also included are stickers such as a sealing sticker for sealing the fixing means and an information sticker for displaying model information.

  As shown in FIG. 5, the conveyor 14 is a roller conveyor that is rotatably provided with a plurality of rollers 14 a that are spaced apart in the conveying direction of the main component 16, and carries the main component 16 in an upright position. It is configured as follows. Above the transport conveyor 14, a plurality of support rollers (not shown) that support the upper ends of the main components 16 placed on the conveyor 14 are arranged side by side in the transport direction. The main component 16 placed on the roller 14a is configured to be conveyed downstream by the conveyor 14 with its upper end supported by a support roller. The assembly station S is provided with detection means (not shown) capable of detecting the main component 16 conveyed by the transfer conveyor 14, and the transfer conveyor 14 is detected when the detection means detects the main component 16. Is configured so that the main component 16 can be stopped at the assembly station S. The assembly station S is provided with a carry-out sensor 20 (see FIG. 6) for detecting that the main component 16 has moved (unloaded) downstream from the assembly station S. The carry-out sensor 20 will be described later. The control means 58 is electrically connected.

  As shown in FIG. 5, when the various parts 18 are assembled at the assembly station S below the assembly station S (game machine production line 10) with the transport conveyor 14 in between, the parts 18 that have dropped out are received. A missing part detection device 12 that can be detected in this manner is provided. As shown in FIG. 1 or FIG. 3, the dropout component detection device 12 includes a rectangular fallen object receiver 22 that opens upward, a moving member 24 that moves inside the fallen object receiver 22, and the moving member. A driving motor 26 as a driving means for reciprocating the motor 24, and a first detection switch (first detecting means) 28 capable of detecting that the moving member 24 moved by the driving motor 26 is located at the first detection position, 28 and second detection switches (second detection means) 30 and 30 that can detect that the moving member 24 moved by the drive motor 26 is located at the second detection position.

  As shown in FIGS. 1 and 2, the fallen object receiver 22 has a box-like shape formed by raising four plates 34, 36, 38, 38 at a predetermined length from the periphery of a rectangular bottom plate 32. The upper opening size of the falling object receptacle 22 is set to a size that can accommodate the entire assembly station S, and is a part 18 that has fallen from the main component 16 located in the assembly station S. In the container 22. In the embodiment, the plates 34, 36 that face each other in the moving direction of the moving member 24 in the falling object receiver 22 are designated as the first plate 34 and the second plate 36, and the left-right direction intersecting the moving direction of the moving member 24 The opposing plates 38, 38 are referred to as side plates 38, 38. It should be noted that a shock absorbing material that prevents the component 18 that has fallen off from the main component member 16 from bouncing on the inner bottom surface (the upper surface of the bottom plate 32) of the fallen object receiver 22 or the fallen object receiver 22 itself is attached. It is preferable to form with a buffer material.

  As shown in FIGS. 1 and 4, the moving member 24 faces a container of a pair of side plates 38, 38 that are opposed to each other in the left-right direction intersecting the moving direction of the moving member 24 inside the falling object receptacle 22. A rectangular plate-like member extending between the inner walls 38a, 38a, and the moving member 24 is moved along the inner bottom surface of the bottom plate 32 by the rotational drive of the drive motor 26. The first plate 34 and the second plate 36 facing each other are configured to reciprocate between the first inner wall 34a and the second inner wall 36a facing the container. Further, gaps that allow smooth movement of the moving member 24 are defined between the left and right end surfaces and the lower end surface of the moving member 24 and the corresponding inner walls 38a, 38a and the inner bottom surface. This gap is set to be smaller than the size of the smallest part 18 to be assembled to the main component 16 at the assembly station S, and the part 18 received in the fallen object receiver 22 is moved to the first inner wall by the movement of the moving member 24. 34a or the second inner wall 36a.

  The moving member 24 includes a support portion 40 facing above the fallen object receiver 22, and both end portions in the longitudinal direction of the support portion 40 are on the left and right side plates of the fallen object receiver 22 as shown in FIGS. 2 and 4. It extends outward from 38,38. At each end portion in the longitudinal direction of the support portion 40, a leg portion 42 is provided so as to hang downward, and a carriage portion 44 is provided at the lower end of the leg portion 42. A plurality (two in the embodiment) of wheels 44a are rotatably disposed on the carriage unit 44, and the wheels 44a are configured to be supported by a guide rail 46, which will be described later, so as to be capable of rolling. Further, as shown in FIG. 3, the upper surface of the support portion 40 is formed in an arc shape that protrudes upward (in the embodiment, an arc shape in a cross section in the thickness direction), and is dropped from the main component 16 of the assembly station S. The component 18 is configured to be prevented from being placed on the upper surface of the support portion 40.

  A pair of guide rails 46, 46 extending in the moving direction of the moving member 24 are arranged in parallel on the left and right outer sides sandwiching the fallen object receptacle 22, and each guide rail 46 has a pair of guide rails 46, as shown in FIG. A guide groove 46 a that opens upward is formed to extend in the moving direction of the moving member 24. As shown in FIG. 4, the wheels 44 a of the cart portions 44 in the moving member 24 are supported in a guide groove 46 a of the corresponding guide rail 46 so as to be able to roll. The two cart portions 44, 44 are connected to an operating mechanism 48 connected to the drive motor 26, and the actuating mechanism 48 is operated by the drive motor 26, whereby the pair of cart portions 44, 44 correspond to the guides. It is configured to move along the rails 46, 46. As shown in FIG. 3, the operating mechanism 48 includes a pair of pulleys (rotators) 50 and 50 that are spaced apart in the front-rear direction across the guide rails 46, and an endless belt ( Cable body) 52, and each endless belt 52 is connected to a corresponding cart 44. The pulleys 50, 50 facing in the left-right direction are connected by a rotating shaft 54 and are configured to rotate integrally. The drive motor 26 connected to one rotating shaft 54 causes the pulleys 50, 50 to rotate forward. By rotating in the reverse direction, the carriage parts 44, 44 move along the guide rails 46, 46 via the endless belts 52, 52, and the moving member 24 approaches the first inner wall 34a of the first plate 34. The second detection position is configured to reciprocate between the first detection position and the second detection position near the second inner wall 36a of the second plate 36.

  A pair of first holding members 56 are disposed on the outer surface of the first plate 34 of the falling object receptacle 22 so as to be separated from each other in the left-right direction, and each first holding member 56 is connected to the control means 58. A first detection switch 28 is provided. A mechanical limit switch is employed as the first detection switch 28, and the first detection switch 28 is in a state where the moving member 24 is located at a first detection position close to the first inner wall 34a. The end portion (one end portion) 44 is positioned so as to be detectable (see FIGS. 7A and 7B). The first detection position where the moving member 24 approaches the first inner wall 34a is set according to the size of the part 18 assembled to the main component member 16 in the gaming machine production line 10, In a state where the component 18 is sandwiched between the first inner wall 34a and the moving member 24 (see FIG. 7 (f)), the first detection switch 28 cannot detect the end of the carriage portion 44, and the first inner wall In a state in which the part 18 is not sandwiched between the moving member 24 and the moving member 24 (see FIGS. 7A and 7B), the first detection switch 28 can detect (ON) the end of the carriage unit 44. What is necessary is just to be a thing, and it is not limited to the state which the moving member 24 contact | abuts to the 1st inner wall 34a.

  A pair of second holding members 60, 60 are disposed on the outer surface of the second plate 36 in the falling object receptacle 22 so as to be separated from each other in the left-right direction, and each second holding member 60 is connected to the control means 58. The second detection switch 30 is disposed. A mechanical limit switch is used as the second detection switch 30, and the second detection switch 30 is positioned in the second detection position near the second inner wall 36 a in the state where the carriage unit 24 is located. The end portion 44 (the other end portion) is positioned at a position where it can be detected. The second detection position where the moving member 24 approaches the second inner wall 36a is a state in which the component 18 is sandwiched between the second inner wall 36a and the moving member 24, similarly to the first detection position (FIG. 7). In (c), the second detection switch 30 cannot detect the end of the carriage portion 44, and the component 18 is not sandwiched between the second inner wall 36a and the moving member 24 (FIG. 7 (d)). ), (e)), the second detection switch 30 is only required to be able to detect (ON) the end portion of the carriage 44, and is limited to the state in which the moving member 24 is in contact with the second inner wall 36a. Is not to be done. In the embodiment, when the moving member 24 moves from the first detection position toward the second detection position, the first detection position becomes the origin position, the second inner wall 36a becomes a restriction wall, and the movement member 24 When moving from the second detection position toward the first detection position, the second detection position becomes the origin position and the first inner wall 34a becomes the restriction wall.

  As shown in FIG. 6, the drive motor 26 is connected to the control means 58 for controlling the drop-off component detection device 12, and the first detection switches 28, 28, the second detection switches 30, 30 and the carry-out sensor are connected. 20 is electrically connected. The control means 58 is electrically connected to an alarm means 62 such as a lamp or a buzzer. The control means 58 detects or does not detect the first detection switches 28 and 28 and the second detection switches 30 and 30. The drive motor 26 and the alarm means 62 are controlled according to the detection state. Further, the control unit 58 is moved by driving the determination unit (determination unit) 64 and the drive motor 26 that determine the presence or absence of a missing part depending on the detection or non-detection state of the first detection switch 28 and the second detection switch 30. A timer 66 is provided for measuring the time from when the member 24 starts moving. Then, after confirming that the main component member 16 has been carried out from the assembly station S based on the signal from the carry-out sensor 20, the control means 58 drives the drive motor 26 to move the moving member 24. Thus, before the next main component 16 arrives at the assembly station S, it can be determined whether or not there is a missing part.

  The determination unit 64 is set to determine that the moving member 24 is located at the first detection position when both the pair of first detection switches 28 and 28 are in the detection state (ON state). When the pair of second detection switches 30 and 30 are both in the detection state (ON state), it is set to determine that the moving member 24 is located at the second detection position. In addition, the control means 58 includes a storage unit (not shown) that stores various data, and in the storage unit, the moving speed of the moving member 24 that is moved by the drive motor 26, the first detection position, and the second detection position. The set time required for the moving member 24 to move between the first detection position and the second detection position calculated from the separation distance is stored. In the embodiment, the set time required for the moving member 24 to move between the first detection position and the second detection position is a condition that the moving member 24 should move from the origin position to the detection position. The This set time is required for the moving member 24 to move between the first detection position and the second detection position in consideration of the reaction speed of the drive motor 26, the movement resistance of the carriages 44, 44, and the like. It is set longer than the calculation time. In the embodiment, the set time required for the moving member 24 to move from the first detection position to the second detection position is referred to as a first set time (first condition), and the moving member 24 performs the second detection. The set time required to move from the position to the first detection position will be distinguished from the second set time (second condition).

(Effects of Example)
Next, the operation of the missing part detection device 12 of the gaming machine production line 10 according to the above-described embodiment will be described.

  When the detection means detects that the main structural member 16 transported by the transport conveyor 14 has arrived at the assembly station S, the transport conveyor 14 stops and the positioning of the main structural member 16 is stopped at the assembly station S. In this state, various parts 18 are assembled to the main component 16 by an automatic assembling machine or an operator. When the assembly of the parts 18 at the assembly station S is completed, the transfer conveyor 14 is started and the main components 16 are carried out of the assembly station S downstream. In addition, the conveyance conveyor 14 is comprised so that it may be started by the input of the completion signal output, for example from the automatic assembly machine, or the completion signal output when an operator depresses a completion switch.

  When the component 18 is assembled to the main component 16 at the assembly station S, or when the main component 16 is unloaded from the assembly station S, the component 18 is fixed, engaged or stuck to the main component 16. Is insufficient, the component 18 may fall off the main component 16. The dropped part 18 falls downward from the gap between the rollers 14a and 14a in the conveyor 14 or from the outside of the conveyor 14 and is received by the falling object receiver 22. Then, in the falling part detection device 12, it is possible to determine whether or not the part 18 has dropped from the main component member 16 by moving the moving member 24 inside the fallen object receiver 22.

  Next, the missing part detection process executed by the missing part detection device 12 will be described with reference to the flowcharts of FIGS.

  In step S1 of FIG. 8, it is determined whether or not the main component 16 has been unloaded from the assembly station S by the unloading sensor 20, and if affirmative (YES), the process proceeds to step S2 and a pair of first detection switches. It is determined whether both 28 and 28 are in the detection state (ON state). If the determination is affirmative (YES), the process proceeds to step S3. That is, if both of the pair of first detection switches 28 and 28 are in the detection state, the moving member 24 is located at the first detection position as shown by the solid line in FIGS. 7 (a) and 7 (b). The control means 58 drives and controls the drive motor 26 in the forward rotation direction, whereby the moving member 24 moves forward toward the second detection position. In step S4, the moving member 24 starts moving (starts normal rotation of the drive motor 26) and simultaneously starts measurement by the timer 66.

  In step S5, the determination unit 64 determines whether both of the pair of second detection switches 30 and 30 are in the detection state (ON state). If the determination is affirmative (YES), the timer 66 is reset in step S6. After that, the drive motor 26 is stopped (step S7), and the process is terminated. That is, if both of the pair of second detection switches 30 and 30 are in the detection state, the moving member 24 is in an appropriate posture at the second detection position as shown by a solid line in FIGS. The determination unit 64 determines that the part 18 is not received by the falling object receiver 22.

  On the other hand, if step S5 is negative (NO), it is determined in step S8 whether or not a preset first set time has elapsed. If negative (NO), the process returns to step S5. Repeat the flow. If the pair of second detection switches 30 and 30 are both in the detection state (ON state) and the determination in step S8 is affirmative (YES), the determination unit 64 sets the component 18 to the fallen object receiver 22. It is determined that it is accepted (step S9). That is, as shown in FIGS. 7B and 7C, when the component 18 is received by the falling object receptacle 22, the component 18 is moved by the moving member 24 that moves from the first detection position to the second detection position. The component 18 is brought close to the second inner wall 36a and sandwiched between the second inner wall 36a and the moving member 24, so that the moving member 24 moves to the second detection position even after the first set time has elapsed. The second detection switches 30 and 30 are in a state where the end portion of the carriage unit 44 cannot be detected (non-detection state). Accordingly, in this case, in step S10, the control means 58 activates the alarm means 62 to notify that there is a missing part, resets the timer 66, stops the drive motor 26, and ends the process.

  If step S2 is negative (NO), the process proceeds to step S11, where it is determined whether both of the pair of second detection switches 30 and 30 are in the detection state (ON state), and affirmative (YES). In this case, the process proceeds to step S12. That is, if both of the pair of second detection switches 30 and 30 are in the detection state, the moving member 24 is located at the second detection position as shown by the solid line in FIGS. 7D and 7E. The control means 58 drives and controls the drive motor 26 in the reverse direction, so that the moving member 24 moves forward toward the first detection position. In step S13, the moving member 24 starts moving (starts reverse rotation of the drive motor 26), and at the same time, measurement by the timer 66 is started.

  In step S14, the determination unit 64 determines whether both of the pair of first detection switches 28, 28 are in the detection state (ON state). If the determination is affirmative (YES), the timer 66 is reset in step S6. Then, the drive motor 26 is stopped (step S7), and the process is terminated. That is, if both of the pair of first detection switches 28 and 28 are in the detection state, the moving member 24 is in an appropriate posture at the first detection position as shown by a solid line in FIGS. The determination unit 64 determines that the part 18 is not received by the falling object receiver 22.

  On the other hand, if step S14 is negative (NO), it is determined in step S15 whether a preset second set time has elapsed. If negative (NO), the process returns to step S14. Repeat the flow. If the pair of first detection switches 28, 28 are both in the detection state (ON state) and the determination in step S15 is affirmative (YES), the determination unit 64 sets the component 18 to the fallen object receiver 22. It is determined that it is accepted (step S9). That is, as shown in FIGS. 7E and 7F, when the component 18 is received by the falling object receiver 22, the component 18 is moved by the moving member 24 that moves from the second detection position to the first detection position. When the component 18 is sandwiched between the first inner wall 34a and the moving member 24, the moving member 24 moves to the first detection position even after the second set time has elapsed. Thus, the first detection switches 28 and 28 are in a state where the end portion of the carriage unit 44 cannot be detected (non-detection state). Accordingly, in this case, in step S10, the control means 58 activates the alarm means 62 to notify the presence of a missing part, reset the timer 66, stop the drive motor 26, and end the process.

  If step S11 in FIG. 8 is negative (NO), the process proceeds to step S16 in FIG. That is, when both step S2 and step S11 are negative (NO), the control means 58 determines that the moving member 24 is located between the first detection position and the second detection position. In S16 to Steps S18 and S25, the same processes as in Steps S3 to S5 and S8 are performed. In step S18, it is determined whether both of the pair of second detection switches 30 and 30 are in the detection state (ON state). If the determination is affirmative (YES), the timer 66 is reset in step S19. In step S20, the drive motor 26 is driven in the reverse direction, and in step S21, the timer 66 starts measuring. In the state where the moving member 24 is located between the first detection position and the second detection position, the exact position of the moving member 24 cannot be determined, but the position of the moving member 24 (the origin position). ) From the start of the movement of the moving member 24 toward the second detection position until it reaches the second detection position is shorter than the first set time. If the part 18 is not received in the region between the second inner wall 36a and the moving member 24 (normal state), the second detection switches 30 and 30 detect before the first set time elapses. In this state, it is possible to detect the absence of missing parts.

  Next, in step S <b> 22, the determination unit 64 determines whether both of the pair of first detection switches 28 and 28 are in the detection state (ON state). If step S22 is affirmative (YES), the timer 66 is reset in step S23, then the drive motor 26 is stopped (step S24), and the process is terminated. That is, if both step S18 and step S22 are affirmative (YES), the moving member 24 is positioned in an appropriate posture at the first detection position and the second detection position, and the determination unit 64 receives the falling object. It is determined that the part 18 is not received in the container 22.

  On the other hand, when the first set time has elapsed without the pair of second detection switches 30 and 30 being in the detection state (No in step S25), and the pair of first detection switches 28 and 28 are not in the detection state. When two set times have elapsed (No at Step S28), the determination unit 64 determines that the part 18 is received by the falling object receiver 22 (Step S26). That is, when the component 18 is received by the falling object receptacle 22, the first inner wall 34a or the second inner wall corresponding to the component 18 by the moving member 24 that moves between the first detection position and the second detection position. The set time elapses without the moving member 24 moving to the first detection position or the second detection position because the part 18 is sandwiched between the inner walls 34a, 36a and the moving member 24. It will be. Accordingly, in this case, in step S27, the control means 58 activates the alarm means 62 to notify the presence of a missing part, reset the timer 66, stop the drive motor 26, and end the process.

  As described above, it is possible to detect that the part 18 has dropped from the main component 16 of the assembly station S by a simple configuration in which the moving member 24 is reciprocated inside the fallen object receiver 22. Further, since the pair of first detection switches 28 and 28 and the pair of second detection switches 30 and 30 are disposed apart from each other in the longitudinal direction of the moving member 24, the position of the component 18 that has fallen on the fallen object receiver 22 is provided. Therefore, even when the moving member 24 is inclined in the longitudinal direction with respect to the moving direction, it is possible to reliably detect the presence of a missing part. That is, when the component 18 is biased and positioned on either the left or right side in the fallen object receiver 22, the other side is inclined in the moving direction with respect to the side of the moving member 24 that contacts the component 18. However, only one of the first detection switches 28 or the second detection switches 30 is considered to be in the detection state, but both the first detection switches 28 and 28 or both the second detection switches 30 and 30 are in the detection state. Since it is configured not to determine that there is no missing part unless it occurs, it is possible to prevent erroneous detection. Further, in the embodiment, the missing part detection process is executed on the condition that the main component 16 is carried out from the assembly station S, and the presence or absence of the missing part is detected before the next main component 16 arrives at the assembly station S. Therefore, it is possible to specify from which main component 16 the component 18 detected in the dropped component detection process is dropped.

  Here, in the missing part detection device 12, when the missing part detection process is started, the moving member 24 is basically stopped at either the first detection position or the second detection position. Although it is set, it is conceivable that the component 18 is stopped between the first detection position and the second detection position due to the detection of the component 18 in the previous missing component detection process. In this case, in this embodiment, when the moving member 24 is not detected by either the first detection switch 28 or the second detection switch 30 in the missing part detection process, the moving member 24 is set to the first detection position and the second detection position. Since it is configured to reciprocate between the detection positions, the component 18 can be reliably detected if the component 18 dropped from the main component member 16 is received by the fallen object receiver 22.

  In a state where the moving member 24 is located between the first detection position and the second detection position (see FIG. 5), the component 18 that has fallen off from the main component member 16 of the assembly station S is placed on the moving member 24. May fall. In the embodiment, since the upper surface of the support portion 40 constituting the upper portion of the moving member 24 is formed in an arc shape that protrudes upward as shown in FIG. Even when it falls to the upper surface of the support portion 40, the component 18 is prevented from remaining on the upper surface of the support portion 40, so that the component 18 is securely placed inside the fallen object receiver 22. Can be dropped on the bottom.

(Change example)
The present application is not limited to the configuration of the above-described embodiment, and other configurations can be appropriately employed.
(1) In the embodiment, a pair of the first detection switch and the second detection switch are provided. However, one first detection switch and one second detection switch may be provided.
(2) In the embodiment, the cart part is detected by the first detection switch and the second detection switch. However, the moving member itself, the support part and the leg part that move integrally with the moving member are detected. A configuration may be employed.
(3) In the embodiment, the contact type limit switch is used as the detecting means for detecting the first detection position and the second detection position of the moving member. However, a non-contact type sensor or switch such as a photoelectric sensor or a magnetic sensor is used. Can be adopted.
(4) In the embodiment, a mechanism in which an endless belt and a pulley are combined is adopted as an operating mechanism for transmitting the power of the drive motor to the moving member. However, as the operating mechanism, a mechanism in which an endless chain and a sprocket are combined is used. A mechanism that converts the rotational motion of the drive motor into a linear motion by a combination of the rope body and the rotating body may be employed. Further, a mechanism that converts the rotational motion of the drive motor into a linear motion via a known mechanism such as a link mechanism can be employed. Further, it is possible to adopt a configuration in which a fluid pressure cylinder is employed as the driving means, and the moving member is reciprocally moved by the fluid pressure cylinder directly or via an operating mechanism such as a link mechanism.
(5) In the embodiment, in the missing part detection process, as a condition that the moving member should move from the origin position to the detection position (first detection position, second detection position), from the time when the movement member starts to move However, the present invention is not limited to this. For example, a pulse motor (stepping motor) is employed as the drive motor, the number of pulses output to the pulse motor is counted by a counter, and the moving member is moved between the first detection position and the second detection position by the pulse motor. When the counter counts the number of pulses corresponding to the above, it may be determined that there is a missing part depending on whether the first detection switch or the second detection switch is in the detection state. That is, the number of pulses counted by the counter can be set as the condition.
(6) In the embodiment, the presence / absence of a missing part is determined based on the set time and the state of the detection switch. For example, a load detection unit capable of detecting a load applied to the drive motor is used. When a preset load (a load generated when movement of the moving member is restricted) is detected, if the corresponding detection switch is not in the detection state, it is determined that there is a missing part. It may be. That is, when the moving member is normally positioned at the first detection position or the second detection position, the load applied to the drive motor increases because the movement of the moving member is restricted by the detection switch or the inner wall. If the detection switch is in the detection state when the load increases, it is determined that there is no part. On the other hand, in a state in which the component is sandwiched between the moving member and the corresponding first inner wall or second inner wall, the moving member moves before the detection switch detects the first detection position or the second detection position. Since the load applied to the drive motor is increased by being regulated by the parts, it is only necessary to determine whether there is a missing part based on the change in the load and the state of the detection switch. That is, parameters such as time, number of pulses, load, etc. that change in relation to the movement status of the moving member are set, and monitoring means (including timer, counter, Load detection means, etc.), and a determination unit (determination means) may be used to determine the presence / absence of a component based on the parameters monitored by the monitoring means and the detection / non-detection state of the detection switch.
(7) In the embodiment, it is configured to start the movement of the moving member in the dropped part detection device and execute the dropped part detection process on condition that the main component is carried out from the assembly station. The moving member may be configured to always reciprocate between the first detection position and the second detection position regardless of the movement of the main constituent member.
(8) In the embodiment, whether the moving member is moved from the first detection position to the second detection position and whether the moving member is moved from the second detection position to the first detection position are checked for the presence / absence of missing parts. Although it is configured to detect, it is possible to adopt a configuration in which any one of the detection positions is set as the origin position and the presence / absence of a missing part is detected only when the position is always moved from the origin position to the other detection position. In other words, after the moving member located at the origin position is moved to the detection position and the presence / absence of the missing part is detected, the moving member is returned to the origin position to wait for the next detection process. Well, according to this configuration, the detection means can be reduced and the configuration can be simplified.
(9) In the flow of the missing part detection process of the embodiment, whether or not the set time (condition that the moving member has moved to the detection position) has elapsed after confirming the detection / non-detection state of the detection switch. However, when the set time has elapsed, the detection / non-detection state of the detection switch may be confirmed.
(10) The flow starting from step S16 in FIG. 9 is set as the initial operation of the reset process when the missing component detection device is turned on or after it is determined that there is a component, and the moving member is positioned at the first detection position. May be.
(11) In the embodiment, the control unit is configured to activate the alarm unit when the determination unit determines that there is a part, but further outputs an abnormal signal to the control device that controls the entire gaming machine production line. The main component from which the part has dropped from the discharge part provided in the line is discharged out of the line, or the main component from which the part has been dropped is marked by the mark applying means provided in the line. Also good.
(12) In the embodiment, the fallen object receiver has a rectangular box shape, and the moving member has been described as being configured to reciprocate between one wall and the other wall. The movement form of the member is not limited to this. For example, the falling object receiver is formed in a circular box shape, and the moving member set to have a length substantially the same as the radius of the falling object receiver is configured to rotate around the center of the falling object receiver. A restriction wall extending radially from the center in the receiver protrudes from the inner bottom surface, and the moving member is rotated between one surface (origin position) in the circumferential direction of the restriction wall and the other surface. A configuration may be employed. That is, the moving member may be any member that can move the entire inside of the fallen object receptacle and can move the parts received by the fallen object receptacle to the wall.
(13) In the embodiment, the upper surface of the moving member is formed in an arc shape, so that it is difficult to place components on the upper surface of the moving member. It may be a shape.
(14) In the embodiment, the case where the dropped part detection device is arranged below the assembly station has been described. However, it may be below the game machine production line, and the main part between the assembly station and the assembly station in the production line may be used. The structure which has arrange | positioned the falling-part detection apparatus below the area | region where a structural member is conveyed with a conveyance conveyor may be sufficient.
(15) In the embodiment, the case where the main component member is conveyed while being erected by the conveyance conveyor has been described, but the main component member may be conveyed while being laid down.

10 Pachislot machine production line 16 Main components (components)
18 parts 22 falling object receptacle 24 moving member 26 drive motor (drive means)
28 First detection switch (detection means)
30 Second detection switch (detection means)
34a First inner wall (regulatory wall)
36a Second inner wall (regulatory wall)
64 determination unit (determination means)
S assembly station

Claims (4)

A missing part detection device provided in a gaming machine production line in which various parts are assembled to a component,
A falling object receiver disposed below the gaming machine production line and opening upward;
A moving member that moves the parts in the fallen object receiver to the restriction wall by moving from the origin position toward the restriction wall along the inner bottom surface of the fallen object receiver in the fallen object receiver;
Driving means for moving the moving member;
Detecting means for detecting that the moving member is located at a detection position close to the restriction wall;
A game machine manufacturing line comprising: a determination unit that determines presence of a component when the detection unit is not detected when a condition that the moving member should move to a detection position is satisfied Missing parts detector. A pair of the detection means are provided apart from each other in a direction intersecting the moving direction of the moving member,
2. The omission of the gaming machine production line according to claim 1, wherein the determination unit is set to determine that the moving member is located at a detection position when both of the pair of detection units are in a detection state. Component detection device. The fallen object receptacle is disposed below an assembly station provided in the gaming machine production line,
2. The drive unit is driven after moving a component from the assembly station, and the determination unit is configured to determine whether there is a component before a next component is supplied to the assembly station. Or the missing part detection apparatus of the game machine manufacturing line of 2.   The fallen component detection device of the gaming machine manufacturing line according to any one of claims 1 to 3, wherein an upper surface of the moving member is formed in an arc shape protruding upward.

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