CN109285564B - Record player with automatic arm return function - Google Patents
Record player with automatic arm return function Download PDFInfo
- Publication number
- CN109285564B CN109285564B CN201811301785.0A CN201811301785A CN109285564B CN 109285564 B CN109285564 B CN 109285564B CN 201811301785 A CN201811301785 A CN 201811301785A CN 109285564 B CN109285564 B CN 109285564B
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- 230000007246 mechanism Effects 0.000 claims abstract description 98
- 238000000034 method Methods 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 7
- 230000009471 action Effects 0.000 claims description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 7
- 230000006872 improvement Effects 0.000 description 8
- 230000005236 sound signal Effects 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B3/00—Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor
- G11B3/02—Arrangements of heads
- G11B3/10—Arranging, supporting, or driving of heads or of transducers relatively to record carriers
- G11B3/12—Supporting in balanced, counterbalanced or loaded operative position during transducing, e.g. loading in direction of traverse
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B3/00—Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor
- G11B3/02—Arrangements of heads
- G11B3/10—Arranging, supporting, or driving of heads or of transducers relatively to record carriers
- G11B3/12—Supporting in balanced, counterbalanced or loaded operative position during transducing, e.g. loading in direction of traverse
- G11B3/20—Supporting in balanced, counterbalanced or loaded operative position during transducing, e.g. loading in direction of traverse by elastic means, e.g. spring
- G11B3/24—Supporting in balanced, counterbalanced or loaded operative position during transducing, e.g. loading in direction of traverse by elastic means, e.g. spring acting to decrease pressure on record
Landscapes
- Holding Or Fastening Of Disk On Rotational Shaft (AREA)
- Automatic Disk Changers (AREA)
Abstract
The invention provides a record player with an automatic arm returning function, which comprises a circuit board, a tone arm mechanism, a record disc and a motor, wherein the circuit board, the tone arm mechanism, the record disc and the motor are arranged on a fixing frame; when the turntable moves to the innermost side of the record or drives a reset key mechanism of the automatic arm returning mechanism, the first switch is restored to a normally open state, and the automatic arm returning mechanism drives the tone arm of the tone arm mechanism to lift and return to a starting position. The invention adopts the automatic arm returning mechanism, when the record is finished or reset, the automatic arm returning mechanism drives the tone arm of the tone arm mechanism to lift and return to the initial position, the tone arm does not need to be manually moved away, the contact time of the record head and the record is not prolonged, and the invention has the advantages of convenient use, prolonged service life, improved performance of the record player and the like.
Description
Technical Field
The invention relates to the technical field of record players, in particular to a record player with an automatic arm returning function.
Background
A record player is a relatively mature and classical sound playing device. The broadcasting principle is as follows: the record has an arc-shaped notch corresponding to the sound carved on the plane of the record by acoustic method. Then placing the record on the turntable of the record player for rotation, and enabling the needle to be in contact with the surface of the record, so as to read the corresponding sound signal, amplify the signal and play back the sound signal in the record. The tone arm of many existing record players does not have the function of automatic retraction, and the record needs to be moved away from the record by a person after the record is finished, so that the record is contacted with the record for a long time, the abrasion of the record and the damage of the record are easily caused for a long time, the service life is shortened, and the record is inconvenient to use.
Disclosure of Invention
In order to overcome the above problems, the present invention provides a jukebox with an automatic arm return function that is convenient to use and has a prolonged service life.
The technical scheme of the invention is as follows: the utility model provides a record player with automatic arm returning function, which comprises a circuit board, a tone arm mechanism, a record disc and a motor which are arranged on a fixing frame, wherein the fixing frame is also provided with the automatic arm returning mechanism and a first switch which is in a normally open state, the first switch and the motor are respectively and electrically connected with a circuit on the circuit board, after the first switch is closed, the motor drives the record disc to rotate, and a record head of the tone arm mechanism is contacted with a record disc on the record disc; when the turntable moves to the innermost side of the record or drives a reset key mechanism of the automatic arm returning mechanism, the first switch is restored to a normally open state, and the automatic arm returning mechanism drives the tone arm of the tone arm mechanism to lift and return to a starting position.
As an improvement to the invention, the automatic arm returning mechanism comprises the reset key mechanism, a force arm, a rotary disc, a motion control mechanism, an arm returning moving piece and a tone arm moving control piece, wherein a reset push rod of the reset key mechanism is used for driving the force arm to rotate, the middle position of the force arm and the rotary disc are respectively and rotatably connected with the fixed frame, and the motion control mechanism is arranged on the rotary disc; one end of the arm of force drives motion control mechanism moves, under motion control mechanism's effect, the axis of rotation of turntable drive the carousel rotates, the carousel drive return arm moving part removes, return arm moving part is kept away from the one end of turntable will the tone arm lifts up, the carousel passes through tone arm removes the control piece and drives the tone arm returns home position.
As an improvement of the invention, the device further comprises a start button mechanism, wherein the start button mechanism drives the first switch to be closed.
As an improvement of the invention, the start button mechanism comprises a start button, a start push rod, a first start rotating member, a switch driving member, a second start rotating member, a first elastic member and a first torsion spring, wherein the first start rotating member, the switch driving member and the second start rotating member are respectively connected with the fixed frame in a rotating way, two ends of the start push rod are respectively connected with one ends of the start button and the first start rotating member, two ends of the first elastic member are respectively connected with one ends of the fixed frame and the first start rotating member, two ends of the first torsion spring are respectively arranged on the fixed frame and the switch driving member, one end of the second start rotating member is connected with one position on the other end of the switch driving member in a rotating way, and the other end of the second start rotating member is matched with the rotary table; when one end of the switch driving piece is clamped on the other end of the first starting rotating piece, the first switch is in a normally open state; when the start button drives the first start rotating piece to rotate through the start push rod, one end of the switch driving piece is released from the other end of the first start rotating piece, and the other end of the switch driving piece is abutted against the first switch to enable the first switch to be closed; the rotary table drives the switch driving piece to rotate through the second starting rotating piece, so that one end of the switch driving piece is clamped on the other end of the first starting rotating piece.
As an improvement of the invention, the motion control mechanism comprises a first motion control piece and a second motion control piece, wherein the first motion control piece and the second motion control piece are arranged in a vertically stacked mode, one end of the first motion control piece and one end of the second motion control piece are respectively and rotatably connected with the fixed frame, a gap is arranged on the rotary table, a motion control part of the first motion control piece and a part of a rotating gear on the rotating shaft are positioned in the gap, and one end of the force arm drives the motion control part to abut against the rotating gear through the second motion control piece, so that the rotating gear is meshed with side teeth on the side wall of the rotary table and drives the rotary table to rotate; after the turntable rotates for a circle, the rotating gear drives the first movement control piece to move through the second movement control piece, so that the movement control part is far away from the rotating gear in the notch.
As an improvement of the invention, an inner ring track groove, an intermediate ring track groove, an outer ring track and a crescent driving piece are arranged on the lower surface of the turntable, the lower end of a moving shaft is connected with the crescent driving piece, the upper end of the moving shaft penetrates through the turntable, a load baffle is arranged on the upper end of the moving shaft, a second elastic piece is sleeved on the moving shaft between the load baffle and the turntable, the inner ring track groove and the intermediate ring track groove are partially overlapped, an inner ring deep groove is arranged in the inner ring track groove, an intermediate ring deep groove is arranged in the intermediate ring track groove, and a partial groove of the intermediate ring deep groove is overlapped with the inner ring deep groove.
The invention further comprises a rotating seat which is rotationally connected with the fixed frame, the middle position of the tone arm moving control piece is rotationally connected with the rotating seat up and down, a control rod at one end of the tone arm moving control piece is positioned in the inner ring track groove or the outer ring track, and the other end of the tone arm moving control piece is rotationally connected with the rotating control piece of the tone arm mechanism.
As an improvement of the invention, a first slot hole and a second slot hole are respectively arranged at two ends of the return arm moving piece, the rotating shaft is positioned in the first slot hole, an upper bulge and a lower bulge are respectively arranged on the upper surface and the lower surface of the return arm moving piece, the upper bulge is positioned in the outer ring track, two ends of a third elastic piece are respectively connected with the fixed frame and the return arm moving piece, and an arm lifting structure is arranged at one end of the return arm moving piece, which is far away from the turntable.
The invention further comprises a second switch electrically connected with the circuit and a power rotating piece rotationally connected with the fixed frame, wherein the second switch is in a normally closed state, the second switch is used for controlling the connection of a power supply, the second switch is arranged on the power rotating piece, a sliding rod of the power rotating piece is arranged in the second slot hole, the return arm moving piece drives the power rotating piece to rotate through the sliding rod, and in the rotating process, the singing arm mechanism enables the second switch to be opened.
The invention further comprises an arm lifting mechanism which is arranged on the fixing frame, and the pause button mechanism or the lifting mechanism drives the arm lifting mechanism to lift the tone arm.
As an improvement of the present invention, the tone arm mechanism includes a tone arm base, the tone arm and the turntable provided on the tone arm, the tone arm is provided on the tone arm base, the tone arm base is provided on the mount, and a rotation control member is provided on the tone arm base.
The invention adopts the automatic arm returning mechanism and the first switch, when the record is finished or reset, the first switch is in a normally open state, the automatic arm returning mechanism drives the tone arm of the tone arm mechanism to lift and return to the initial position, the tone arm is not required to be manually moved away, the contact time of the record head and the record is not prolonged, and the invention has the advantages of convenient use, prolonged service life, improved performance of the record player and the like.
Drawings
Fig. 1 is a perspective view of the present invention.
Fig. 2 is a schematic perspective view of another view of fig. 1.
Fig. 3 is a perspective view of the automatic arm returning mechanism of fig. 1.
Fig. 4 is a schematic perspective view of another view of fig. 3.
Fig. 5 is an exploded view of fig. 4.
Wherein: 1. a fixing frame; 11. a motor; 12. a rotating shaft; 13. rotating the gear; 2. a tone arm mechanism; 21. a tone arm; 22. a record head; 23. rotating the control member; 24. a tone arm seat; 31. a reset key mechanism; 311. a reset key; 312. resetting the push rod; 32. force arm; 321. resisting the notch; 322. a pushing structure; 33. a turntable; 331. side teeth; 332. a notch; 333. an inner ring track groove; 3331. an inner ring deep groove; 334. a middle ring track groove; 3341. a middle ring deep groove; 335. a crescent driving piece; 3351. a load-carrying baffle; 336. an outer ring track; 3361. a first outer ring track; 3362. a second outer ring track; 3363. a third outer ring trace; 337. a movement limiting protrusion; 34. a motion control mechanism; 341. a first motion control; 3411. a motion control unit; 3412. limiting notch; 342. a second motion control member; 3421. a lower moving protrusion; 3422. an upper moving protrusion; 35. a return arm moving member; 351. a first slot; 352. a second slot; 353. a lower protrusion; 354. an arm lifting structure; 36. a tone arm movement control member; 361. a control lever; 4. starting a key mechanism; 41. starting a key; 42. starting a push rod; 43. a first start rotation member; 44. a switch driving member; 45. a second start rotation member; 46. a first elastic member; 451. a side pushing member; 51. a second switch; 52. a power source rotating member; 53. a slide bar; 6. an arm lifting mechanism; 61. an arm lifting piece; 62. a fourth elastic member; 63. a lift arm shaft; 64. lifting arm limiting parts; 71. a pause button; 72. suspending the push rod; 73. suspending the rotating member; 8. a speed regulating key; 100. a first switch; 101. a third elastic member; 200. a circuit board.
Detailed Description
In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or component to be referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of the two components. It will be understood by those of ordinary skill in the art that the terms described above are in the specific sense of the present invention.
Referring to fig. 1 to 5, fig. 1 and 2 disclose a jukebox with an automatic arm returning function, fig. 3 and 4 disclose a structure of an automatic arm returning mechanism, and fig. 5 is a schematic diagram of an exploded structure of the automatic arm returning mechanism. The electric gramophone comprises a circuit board 200, a tone arm mechanism 2, a gramophone (not shown) and a motor 11 which are arranged on a fixed frame 1, wherein the fixed frame 1 is also provided with an automatic tone arm mechanism and a first switch 100 which is in a normally open state, the first switch 100 and the motor 11 are respectively and electrically connected with a circuit on the circuit board 200, after the first switch 100 is closed, the motor 11 drives the gramophone to rotate, and a gramophone head 22 of the tone arm mechanism 2 is contacted with a gramophone record on the gramophone; when the turntable platter 22 is moved to the innermost side of a record or the reset key mechanism 31 of the arm mechanism is actuated, the first switch 100 is restored to a normally open state and the arm mechanism drives the arm 21 of the arm mechanism 2 to lift and return to a home position.
In this embodiment, the circuit provided on the circuit board 200 is a prior art, and is commercially available, and the present invention does not improve the circuit structure, and the main function of the circuit is to control the operation of the motor 11, the processing of audio signals, and the playing of sound, and the circuit also has a rotation speed control function.
In this embodiment, the motor 11 drives the turntable through a belt, the turntable is mounted on the rotating shaft 12, the rotating shaft 12 is rotatably connected with the fixing frame 1, the rotating shaft 12 rotates along with the turntable, and the rotating gear 13 is disposed on the rotating shaft 12.
In this embodiment, the automatic arm returning mechanism includes the reset key mechanism 31, a force arm 32, a turntable 33, a motion control mechanism 34, an arm returning moving member 35 and a tone arm moving control member 36, a reset push rod 312 of the reset key mechanism 31 is used for driving the force arm 32 to rotate, the middle position of the force arm 32 and the turntable 33 are respectively connected with the fixing frame 1 in a rotating way, and the motion control mechanism 34 is disposed on the turntable 33; one end of the arm 32 drives the motion control mechanism 34 to move, under the action of the motion control mechanism 34, the rotating shaft 12 of the turntable drives the turntable 33 to rotate, the turntable 33 drives the return arm moving member 35 to move, one end of the return arm moving member 35 away from the turntable lifts the tone arm 21, and the turntable 33 drives the tone arm 21 to return to the initial position through the tone arm moving control member 36.
The arm of force 32 with the lower surface rotation of mount 1 is connected, the other end of arm of force 32 is provided with and withstands breach 321, be provided with pushing structure 322 on the lateral wall of the other end of arm of force 32. One end of the force arm 32 is bent through the fixing frame 1, two ends of the force arm 32 form an included angle in projection, and the included angle ranges from more than or equal to 110 degrees to less than or equal to 140 degrees.
The reset key mechanism 31 includes a reset key 311 and a reset push rod 312, where the reset key 311 is connected to one end of the reset push rod 312, and the other end of the reset push rod 312 is disposed opposite to the pushing structure 322.
The turntable 33 is arranged on the upper surface of the fixed frame 1, side teeth 331 are arranged on the side wall of the turntable 33, and a notch 332 is arranged on the turntable 33. An inner ring track groove 333, an intermediate ring track groove 334, an outer ring track 336 and a crescent driving piece 335 are arranged on the lower surface of the turntable 33, the lower end of a moving shaft (not marked) is connected with the crescent driving piece 335, the upper end of the moving shaft passes through the turntable 33, a load baffle 3351 is arranged on the upper end of the moving shaft, a second elastic piece (not marked) is sleeved on the moving shaft between the load baffle 3351 and the turntable 33, the load baffle 3351 is contacted with the lower surface of the turntable, and the crescent driving piece 335 is arranged at a position between the inner ring track groove 333 and the intermediate ring track groove 334.
On the turntable 33, the inner ring track groove 333 and the middle ring track groove 334 are partially overlapped, an inner ring deep groove 3331 is provided in the inner ring track groove 333, a middle ring deep groove 3341 is provided in the middle ring track groove 334, and a partial groove of the middle ring deep groove 3341 is overlapped with the inner ring deep groove 3331. The depth of the inner ring deep groove 3331 is equal to the depth of the middle ring deep groove 3341, the depth of the inner ring deep groove 3331 is larger than the depth of the inner ring track groove 333 at other positions, and the depth of the middle ring deep groove 3341 is larger than the depth of the middle ring track groove 334 at other positions.
On the turntable 33, the outer ring track 336 includes a first outer ring track 3361, a second outer ring track 3362 and a third outer ring track 3363, the first outer ring track 3361, the second outer ring track 3362 and the third outer ring track 3363 are sequentially connected in a ring shape, and the movement radii of the first outer ring track 3361, the second outer ring track 3362 and the third outer ring track 3363 are sequentially reduced.
The motion control mechanism 34 includes a first motion control member 341 and a second motion control member 342, the first motion control member 341 and the second motion control member 342 are disposed in a vertically stacked manner, and one end of the first motion control member 341 and one end of the second motion control member 342 are rotatably connected to the fixing frame 1, respectively. The motion control part 3411 of the first motion control member 341 and a part of the rotating gear 13 on the rotating shaft 12 are located in the notch 332, and one end of the arm 32 drives the motion control part 3411 to abut against the rotating gear 13 through the second motion control member 342, so that the rotating gear 13 is meshed with the side teeth 331 on the side wall of the rotating disc 33 and drives the rotating disc 33 to rotate; after the turntable 33 rotates one turn, the rotation gear 13 drives the first movement control member 341 to move through the second movement control member 342, so that the movement control portion 3411 is away from the rotation gear 13 in the notch 332.
In the motion control mechanism 34, a lower motion protrusion 3421 and an upper motion protrusion 3422 are respectively disposed on the lower surface and the upper surface of the second motion control member 342, and a limit notch 3412 is disposed on the first motion control member 341. The lower movement boss 3421 is disposed in the notch 332, the upper movement boss 3422 is disposed in the limit notch 3412, the movement limit boss 337 is disposed on the turntable 33, and the movement limit boss 337 is disposed in the limit notch 3412.
The two ends of the return arm moving member 35 are respectively provided with a first slot hole 351 and a second slot hole 352, the rotating shaft 12 is located in the first slot hole 351, the upper surface and the lower surface of the return arm moving member 35 are respectively provided with an upper protrusion and a lower protrusion 353, the upper protrusion is located in the outer ring track 336, two ends of the third elastic member 101 are respectively connected with the fixed frame 1 and the return arm moving member 35, one end, far away from the turntable 33, of the return arm moving member 35 is provided with an arm lifting structure 354, the arm lifting structure 354 is in a bent shape, and the return arm moving member 35 moves back and forth on the upper surface of the fixed frame 1.
In this embodiment, the device further includes a start button mechanism 4, where the start button mechanism 4 drives the first switch 100 to be closed.
The start button mechanism 4 includes a start button 41, a start push rod 42, a first start rotating member 43, a switch driving member 44, a second start rotating member 45, a first elastic member 46, and a first torsion spring (not labeled), where the first start rotating member 43, the switch driving member 44, and the second start rotating member 45 are respectively rotatably connected to the fixed frame 1, two ends of the start push rod 42 are respectively connected to one ends of the start button 41 and the first start rotating member 43, two ends of the first elastic member 46 are respectively connected to one ends of the fixed frame 1 and the first start rotating member 43, two ends of the first torsion spring are respectively disposed on the fixed frame 1 and the switch driving member 44, one end of the second start rotating member 45 is rotatably connected to one position on the other end of the switch driving member 44, and the other end of the second start rotating member 45 is matched with the turntable 33; when one end of the switch driving member 44 is clamped on the other end of the first starting rotation member 43, the first switch 100 is in a normally open state; when the start button 41 drives the first start rotating member 43 to rotate through the start push rod 42, one end of the switch driving member 44 is released from the other end of the first start rotating member 43, and the other end of the switch driving member 44 abuts against the first switch 100 to close the first switch 100; the rotary plate 33 drives the switch driving member 44 to rotate through the second starting rotation member 45, so that one end of the switch driving member 44 is clamped on the other end of the first starting rotation member 43. A side pushing member 451 is provided on the second starting rotation member 45, and the side pushing member 451 is configured to push one end of the arm 32.
In this embodiment, the device further includes a rotating base (not visible in the drawing), the rotating base is rotatably connected to the fixing frame 1, the middle position of the tone arm moving control member 36 is rotatably connected to the rotating base up and down, a control lever 361 at one end of the tone arm moving control member 36 is located in the inner ring track slot 333 or the outer ring track 336, the other end of the tone arm moving control member 36 is rotatably connected to the rotating control member 23 of the tone arm mechanism 2, and the crescent driving piece 335 is used for controlling whether the control lever 361 moves in the inner ring track slot 333 or moves in the outer ring track 336.
In this embodiment, the device further includes a second switch 51 electrically connected to the circuit and a power rotating member 52 rotationally connected to the fixing frame 1, where the second switch 51 is in a normally closed state, the second switch 51 is used to control the power to be turned on, the second switch 51 is disposed on the power rotating member 52, a sliding rod 53 of the power rotating member 52 is disposed in the second slot 352, and the arm returning moving member 35 drives the power rotating member 52 to rotate through the sliding rod 53, and in the rotating process, the tone arm mechanism 2 makes the second switch 51 open.
In this embodiment, the device further includes an arm lifting mechanism 6, the arm lifting mechanism 6 is disposed on the fixing frame 1, and the pause button 71 mechanism or the lifting mechanism drives the arm lifting mechanism 6 to lift the tone arm 21.
The arm lifting mechanism 6 comprises an arm lifting member 61, a fourth elastic member 62 and an arm lifting shaft 63, the arm lifting member 61 is arranged at the upper end of the arm lifting shaft 63, the lower end of the arm lifting shaft 63 passes through the fixing frame 1 and is positioned below the fixing frame 1, an arm lifting limiting member 64 is arranged at the lower end of the arm lifting shaft 63, and the fourth elastic member 62 is sleeved on the arm lifting shaft 63 between the fixing frame 1 and the arm lifting limiting member 64.
The pause button 71 mechanism comprises a pause button 71, a pause push rod 72 and a pause rotating member 73, wherein the pause button 71 is connected with one end of the pause push rod 72, the other end of the pause push rod 72 is connected with the pause rotating member 73, and the pause rotating member 73 pushes the arm lifting member 61 to lift the singing arm 21.
In this embodiment, the tone arm mechanism 2 includes a tone arm seat 24, the tone arm 21, and the tone head 22 disposed on the tone arm 21, the tone arm 21 is disposed on the tone arm seat 24, the tone arm seat 24 is disposed on the mount 1, and a rotation control member 23 is disposed on the tone arm seat 24.
In this embodiment, the electronic device further includes a speed adjusting button 8, the speed adjusting button 8 is electrically connected to the circuit, and the speed adjusting button 8 is used for adjusting the rotation speed of the motor 11.
The working process of the invention is as follows:
the disc is placed on the turntable, the turntable is pressed against the load lock 3351, the moving axis moves downward, and the crescent-shaped driving piece 335 also moves downward.
1. When the start button 41 is pressed, the start push rod 42 pushes the first start rotating member 43 to rotate, and the extended end of the start push rod 42 pushes the pushing structure 322 of the arm 32, so that the arm 32 rotates. The first elastic member 46 is elongated and applies a force in a reverse direction to the first rotation starting member 43, and one end of the switch driving member 44 is engaged with the other end of the first rotation starting member 43 before the first rotation starting member 43 rotates. After the first starting rotation member 43 rotates, one end of the switch driving member 44 is released from the other end of the first starting rotation member 43, the torsion spring drives the switch driving member 44 to rotate, and the other end of the switch driving member 44 abuts against the first switch 100 to close the first switch 100. Due to the rotation of the switch driving member 44, the second starting rotation member 45 also rotates synchronously, the other end of the second starting rotation member 45 toggles the crescent driving plate 335 to move away from the rotation center of the turntable 33, and the crescent driving plate 335 blocks the outer ring track 336.
The first switch 100 is closed, the circuit transmits a control signal to the motor 11, the motor 11 starts to operate, and the motor 11 drives the turntable. The tone arm 21 moves onto the record and the turntable head 22 contacts and moves over the record. As the turntable 22 moves over a record, and as the tone arm 21 swings, the lever 361 of the tone arm movement control member 36 is positioned in the inner annular deep groove 3331 and the rotational control member 23 rotates relative to the tone arm movement control member 36.
When the record is played, the first rotating protrusion on the rotating control member 23 abuts against the other end of the arm 32, so that the arm 32 rotates, one end of the arm 32 acts on the lower moving protrusion 3421, so that the lower moving protrusion 3421 moves, the second moving control member 342 and the upper moving protrusion 3422 also move along with the movement of the upper moving protrusion 3422, and the upper moving protrusion 3422 drives the first moving control member 341 to move, so that the movement control portion 3411 abuts against the rotating gear 13, so that the rotating gear 13 engages with the side teeth 331 on the side wall of the turntable 33 and drives the turntable 33 to rotate. After the turntable 33 rotates one turn, the rotation gear 13 drives the first movement control member 341 to move through the second movement control member 342, so that the movement control portion 3411 is away from the rotation gear 13 in the notch 332.
During the rotation of the turntable 33, the upper projection of the return arm moving member 35 moves in the outer ring locus 336, so that the return arm moving member 35 moves back and forth on the upper surface of the fixed frame 1, and the third elastic member 101 always applies a pulling force to the return arm moving member 35 to move toward the turntable 33. When the arm returning moving member 35 moves in a direction away from the turntable 33, the arm lifting structure 354 abuts on the arm lifting shaft 63, the arm lifting shaft 63 drives the arm lifting member 61 to move upward, and the arm lifting member 61 lifts the tone arm 21. The lower protrusion 353 of the return arm moving member 35 drives the other end of the switch driving member 44 to move, that is, the switch driving member 44 rotates, and the other end of the switch driving member 44 is far away from the first switch 100, the first switch 100 is in a normally open state, one end of the switch driving member 44 rotates, and the first elastic member 46 drives the first starting rotating member 43 to rotate, so that one end of the switch driving member 44 is clamped on the other end of the first starting rotating member 43. Since the first switch 100 is in a normally open state, the motor 11 stops operating.
When the arm returning moving member 35 moves away from the turntable 33, the second slot 352 drives the slide rod 53 of the power rotating member 52 to move, so that the power rotating member 52 rotates, and during the rotation, the second switch 51 is opened by the second rotation protrusion of the rotation control member 23, and the circuit is cut off.
During the rotation of the turntable 33, after the arm lifting member 61 lifts the tone arm 21, the control lever 361 of the tone arm movement control member 36 leaves the inner ring deep groove 3331, the control lever 361 moves in the inner ring track groove 333, and according to the lever principle, the other end of the tone arm movement control member 36 is tightly pressed against the rotation control member 23. As the control lever 361 moves in the inner ring track groove 333, the tone arm movement control member 36 rotates, and the other end of the tone arm movement control member 36 drives the rotation control member 23 to rotate, thereby driving the tone arm 21 to move, so that the tone arm 21 is lifted and returns to the initial position.
2. When the reset button is pressed, the reset pushrod 312 pushes against the pushing structure 322, causing the arm 32 to rotate until the tone arm 21 lifts and returns to the home position. The specific working process is the same as the above process, and the same working process will not be described here. The difference is that the crescent shaped driving piece 335 blocks the inner ring track slot 333 and the control lever 361 moves in the outer ring track 336 slot.
When the pause button 71 is pressed, the pause button 71 drives the pause push rod 72 to move, the pause push rod 72 pushes the pause rotating member 73 to rotate, and the pause rotating member 73 pushes the arm lifting member 61 to lift the tone arm 21.
Because the automatic arm returning mechanism and the first switch are adopted, when the record is finished or reset, the first switch is in a normally open state, the automatic arm returning mechanism drives the tone arm of the tone arm mechanism to lift and return to the initial position, the tone arm is not required to be manually removed, the contact time between the record head and the record is not prolonged, and the record head has the advantages of convenience in use, prolonged service life, performance improvement of a record player and the like.
It should be noted that, for the detailed explanation of the above embodiments, the purpose of explaining the present invention is to be interpreted as a better explanation of the present invention, but these descriptions should not be construed as limiting the present invention for any reason, in particular, the respective features described in the different embodiments may also be arbitrarily combined with each other to constitute other embodiments, and these features should be understood as being applicable to any one embodiment, except for the explicitly contrary descriptions.
Claims (6)
1. The utility model provides an automatic play machine of arm function returns, includes circuit board, tone arm mechanism, turntable and motor that set up on the mount, its characterized in that: the automatic arm returning mechanism and the first switch in a normally open state are further arranged on the fixing frame, the first switch and the motor are respectively and electrically connected with a circuit on the circuit board, after the first switch is closed, the motor drives the turntable to rotate, and a turntable head of the arm returning mechanism is in contact with a record on the turntable; when the turntable moves to the innermost side of a record or drives a reset key mechanism of the automatic arm returning mechanism, the first switch is restored to a normally open state, and the automatic arm returning mechanism drives a tone arm of the tone arm mechanism to lift and return to a starting position;
the automatic arm returning mechanism comprises a reset key mechanism, a force arm, a rotary disc, a motion control mechanism, an arm returning moving piece and a tone arm moving control piece, wherein a reset push rod of the reset key mechanism is used for driving the force arm to rotate, the middle position of the force arm and the rotary disc are respectively and rotatably connected with the fixing frame, and the motion control mechanism is arranged on the rotary disc; one end of the arm of force drives the motion control mechanism to move, under the action of the motion control mechanism, the rotating shaft of the turntable drives the turntable to rotate, the turntable drives the return arm moving part to move, the return arm moving part lifts the tone arm away from one end of the turntable, and the turntable drives the tone arm to return to the initial position through the tone arm moving control part;
the record player with the automatic arm returning function further comprises a start button mechanism, wherein the start button mechanism drives the first switch to be closed;
an inner ring track groove, an intermediate ring track groove, an outer ring track and a crescent driving piece are arranged on the lower surface of the rotary table, the lower end of a moving shaft is connected with the crescent driving piece, the upper end of the moving shaft penetrates through the rotary table, a load baffle is arranged on the upper end of the moving shaft, a second elastic piece is sleeved on the moving shaft between the load baffle and the rotary table, the inner ring track groove and the intermediate ring track groove are partially overlapped, an inner ring deep groove is arranged in the inner ring track groove, an intermediate ring deep groove is arranged in the intermediate ring track groove, and the partial groove of the intermediate ring deep groove is overlapped with the inner ring deep groove.
2. The jukebox of claim 1, wherein: the starting key mechanism comprises a starting key, a starting push rod, a first starting rotating piece, a switch driving piece, a second starting rotating piece, a first elastic piece and a first torsion spring, wherein the first starting rotating piece, the switch driving piece and the second starting rotating piece are respectively connected with the fixed frame in a rotating way, two ends of the starting push rod are respectively connected with one ends of the starting key and the first starting rotating piece, two ends of the first elastic piece are respectively connected with one ends of the fixed frame and the first starting rotating piece, two ends of the first torsion spring are respectively arranged on the fixed frame and the switch driving piece, one end of the second starting rotating piece is connected with one position on the other end of the switch driving piece in a rotating way, and the other end of the second starting rotating piece is matched with the rotary table; when one end of the switch driving piece is clamped on the other end of the first starting rotating piece, the first switch is in a normally open state; when the start button drives the first start rotating piece to rotate through the start push rod, one end of the switch driving piece is released from the other end of the first start rotating piece, and the other end of the switch driving piece is abutted against the first switch to enable the first switch to be closed; the rotary table drives the switch driving piece to rotate through the second starting rotating piece, so that one end of the switch driving piece is clamped on the other end of the first starting rotating piece.
3. The jukebox of claim 1, wherein: the motion control mechanism comprises a first motion control piece and a second motion control piece, wherein the first motion control piece and the second motion control piece are arranged in a vertically stacked mode, one end of the first motion control piece and one end of the second motion control piece are respectively in rotary connection with the fixed frame, a gap is formed in the rotary table, a motion control part of the first motion control piece and one part of a rotating gear on the rotating shaft are located in the gap, one end of the force arm drives the motion control part to abut against the rotating gear through the second motion control piece, and therefore the rotating gear is meshed with side teeth on the side wall of the rotary table and drives the rotary table to rotate; after the turntable rotates for a circle, the rotating gear drives the first movement control piece to move through the second movement control piece, so that the movement control part is far away from the rotating gear in the notch.
4. The jukebox of claim 1, wherein: the tone arm moving control device also comprises a rotating seat which is rotationally connected with the fixed frame, the middle position of the tone arm moving control piece is rotationally connected with the rotating seat up and down, and a control rod at one end of the tone arm movement control member is positioned in the inner ring track groove or the outer ring track, and the other end of the tone arm movement control member is rotatably connected with the rotation control member of the tone arm mechanism.
5. The jukebox of claim 1, wherein: the rotary arm moving part comprises a rotary disc, a fixed frame, a rotary disc, a rotary shaft, an outer ring track, a first slot hole and a second slot hole which are respectively arranged at two ends of the rotary arm moving part, the rotary shaft is positioned in the first slot hole, an upper protrusion and a lower protrusion are respectively arranged on the upper surface and the lower surface of the rotary arm moving part, the upper protrusion is positioned in the outer ring track, two ends of the third elastic part are respectively connected with the fixed frame and the rotary arm moving part, and an arm lifting structure is arranged at one end of the rotary disc, which is far away from the rotary disc, of the rotary arm moving part.
6. The jukebox of claim 5, wherein: the power supply rotating part is electrically connected with the circuit, the second switch is in a normally-closed state, the second switch is used for controlling the connection of a power supply, the second switch is arranged on the power supply rotating part, a sliding rod of the power supply rotating part is arranged in the second slot hole, the arm returning moving part drives the power supply rotating part to rotate through the sliding rod, and in the rotating process, the tone arm mechanism enables the second switch to open.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811301785.0A CN109285564B (en) | 2018-11-02 | 2018-11-02 | Record player with automatic arm return function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811301785.0A CN109285564B (en) | 2018-11-02 | 2018-11-02 | Record player with automatic arm return function |
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| CN109285564A CN109285564A (en) | 2019-01-29 |
| CN109285564B true CN109285564B (en) | 2023-10-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811301785.0A Active CN109285564B (en) | 2018-11-02 | 2018-11-02 | Record player with automatic arm return function |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115171740A (en) * | 2022-08-09 | 2022-10-11 | 深圳市君兰电子有限公司 | Record player capable of automatically adjusting rotating speed |
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| CN209056280U (en) * | 2018-11-02 | 2019-07-02 | 深圳市佳音王科技股份有限公司 | The automatic phonograph for returning arm function |
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| GB775956A (en) * | 1955-09-02 | 1957-05-29 | Emil Knecht | Improvements in or relating to disc record players |
| WO1980002770A1 (en) * | 1979-06-04 | 1980-12-11 | Kato Electric & Machinary Co | Device for moving tone arm |
| CN2054557U (en) * | 1988-09-30 | 1990-03-14 | 佛山市电动工具厂 | Electronic device for phonograph halfway pickup-returning |
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| CN109285564A (en) | 2019-01-29 |
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