CN113643726A

CN113643726A - Vinyl disc device

Info

Publication number: CN113643726A
Application number: CN202111120402.1A
Authority: CN
Inventors: 袁义菊
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-09-18
Filing date: 2021-09-18
Publication date: 2021-11-12

Abstract

The invention relates to the field of disc recorders, and adopts the technical scheme that: the utility model provides a vinyl record device, includes the gramophone, the gramophone includes the needle base and connects the needle point in needle base one end, the needle point includes stage body and centrum, the great one end of stage body links to each other with the needle base, the less one end of stage body links to each other with the centrum, the contained angle between stage body hypotenuse and the centrum hypotenuse of needle point axial cross-section is the obtuse angle. The needle head of the stylus can be attached to the shape of the groove, and the audio data in the groove of the record can be read by utilizing the junction of the cone and the table body, so that the stylus is in more subtle contact with the groove, and the tone quality and the playing effect are better.

Description

Vinyl disc device

Technical Field

The invention relates to the field of disc recorders, in particular to a vinyl record device.

Background

A record player is a playback device which is mainly composed of record, stylus, head, arm and so on, wherein the stylus follows the modulation of the track on the record, and the resulting mechanical movement of vibration is transmitted to the transducer element of the head during the rotation of the record, so that it is converted into corresponding audio signals. The needle tip of the stylus on the market at present is mainly divided into two types of circular structure and oval structure, and the needle tip of the two types of structures has relatively poor effect of reading the audio signal in the groove of the record.

Disclosure of Invention

The invention aims to provide a vinyl record device, the contact between a stylus and a groove of the device is finer, and the tone quality and the playing effect are better.

In order to achieve the purpose of the invention, the technical scheme adopted by the invention is as follows: the utility model provides a vinyl record device, includes the gramophone, the gramophone includes the needle base and connects the needle point in needle base one end, the needle point includes stage body and centrum, the great one end of stage body links to each other with the needle base, the less one end of stage body links to each other with the centrum, the contained angle between stage body hypotenuse and the centrum hypotenuse of needle point axial cross-section is the obtuse angle.

Preferably, the table body is a circular table, and the cone body is a cone.

Preferably, the included angle between the generatrix of the circular truncated cone and the axis is set, and the included angle between the generatrix of the circular truncated cone and the axis is set.

Preferably, the disc player further comprises a tone arm, a tone head and a disc holder, wherein the tone head is connected to one end of the tone arm, and the other end of the tone arm is arranged on the disc holder; the other end of the needle base is connected with the bottom wall of the phonograph head, an adjusting mechanism used for automatically adjusting needle pressure of the needle point is arranged on the phonograph seat, and the adjusting mechanism comprises a pressure measuring component and a pressure adjusting component.

Preferably, the pressure measuring assembly comprises a mounting sleeve in a U-shaped structure, and the mounting sleeve is clamped on the singing head; an inner cavity is formed in one arm of the mounting sleeve, a push rod is connected to the top of the inner cavity, a T-shaped rod is connected to the driving end of the push rod, the push rod drives the T-shaped rod to reciprocate in the vertical direction in the inner cavity, the rod part of the T-shaped rod penetrates through the bottom wall of the inner cavity and extends to the outside of the mounting sleeve, and a pressure sensor is arranged on the rod part of the T-shaped rod;

the T-shaped rod part positioned below the pressure sensor is of a pointed structure.

Preferably, the pressure regulating assembly comprises a jacket arranged on the tone arm, a first magnetic plate is arranged on the lower surface of the jacket, a second magnetic plate is arranged below the jacket, the polarity of the lower surface of the first magnetic plate is the same as that of the upper surface of the second magnetic plate, a pair of guide holes are formed in the second magnetic plate, guide rods penetrate through the guide holes, and the bottom ends of the guide rods are fixed on the tone seat;

the CD seat is provided with a pressure regulating box, the top and the bottom in the pressure regulating box are respectively and fixedly provided with an upper electromagnet and a lower electromagnet, and the upper electromagnet and the lower electromagnet generate mutually attracted magnetic fields; a Z-shaped pressure regulating plate is arranged outside the pressure regulating box, an upper transverse section of the pressure regulating plate extends into a position between the upper electromagnet and the lower electromagnet in the pressure regulating box from an opening arranged at one side of the pressure regulating box, the upper transverse section of the pressure regulating plate is made of a magnetic material, and the polarity of the upper surface of the upper transverse section is the same as that generated by the upper electromagnet;

the end part of the lower transverse section of the pressure regulating plate is connected with the second magnetic plate, a hinged seat hinged with the lower transverse section is arranged at the inclined section of the lower transverse section close to the pressure regulating plate, and the hinged seat is fixed on the record seat.

Preferably, the first magnetic plate and the second magnetic plate are both arc-shaped.

Preferably, the end connection of lower horizontal section has U-shaped splint, both sides around the second magnetic sheet are established to two arm clamps of U-shaped splint, the middle part of both sides wall all is equipped with the spliced pole around the second magnetic sheet to be equipped with the bar groove corresponding with the spliced pole on two arms of U-shaped splint, the spliced pole is inserted and is established in the bar inslot.

Preferably, the turntable head is provided with a dial plate.

The beneficial effects of the invention are concentrated and expressed as follows: the needle head of the stylus can be attached to the shape of the groove, and the audio data in the groove of the record can be read by utilizing the junction of the cone and the table body, so that the stylus is in more subtle contact with the groove, and the tone quality and the playing effect are better.

Drawings

FIG. 1 is a schematic illustration of a stylus configuration according to the present invention;

FIG. 2 is a schematic view of the overall structure of the present invention;

FIG. 3 is a view from A-A of the structure shown in FIG. 2;

FIG. 4 is a view from the B-B direction of the structure shown in FIG. 2;

FIG. 5 is a schematic view of a second magnetic plate according to the present invention;

fig. 6 is a schematic view of a U-shaped clamp plate structure of the present invention.

Detailed Description

In order to make the technical solutions of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1 to 6, a vinyl record apparatus includes a stylus, the stylus includes a needle base 1 and a needle tip connected to one end of the needle base 1, in this embodiment, the needle tip is made of artificial diamond/diamond or natural diamond, the needle base 1 is a cylinder structure made of metal, the height of the whole stylus is preferably 1mm, the height of the stylus can be selected according to actual requirements, the needle tip includes a table 2 and a cone 3, the larger end of the table 2 is connected to the needle base 1, the smaller end of the table 2 is connected to the cone 3, and an included angle between the inclined edge of the table 2 and the inclined edge of the cone 3 in the axial section of the needle tip is an obtuse angle; the table body 2 is preferably a circular table, the cone body 3 is a cone, the included angle between the bus of the circular table and the axis is 30 degrees, the included angle between the bus of the cone and the axis is 60 degrees, namely, the included angle between two symmetrical bevel edges of the circular table is 60 degrees, the included angle between two symmetrical bevel edges of the cone is 120 degrees, and the junction of the circular table and the cone is used for reading data information in a groove on a record, so that the junction of the needle point is thinner, the contact between the needle point and the record groove is finer, the tone quality and the playing effect are better, and the abrasion resistance is better; and the 120-degree cone 3 design can prevent the probe tip from probing the bottom, and the 60-degree table 2 design can also be used for chip removal on the groove of the record.

Furthermore, the needle pressure of the stylus needs to be adjusted before the stylus is placed on the record, and the needle pressure is adjusted conveniently and accurately, so that the vinyl record device further comprises a tone arm 4, a tone head 5 and a record seat 6, wherein the tone head 5 is connected to one end of the tone arm 4, and the other end of the tone arm 4 is installed on the record seat 6; the other end of needle base 1 links to each other with the diapire of record head 5, be equipped with the adjustment mechanism who is used for automatically regulated needle point acupressure on the record seat 6, adjustment mechanism includes pressure measurement subassembly and pressure regulating subassembly, and wherein pressure measurement subassembly is used for indirect measurement needle point acupressure, and the pressure regulating subassembly is used for accurate adjustment needle point acupressure.

Specifically, the pressure measuring assembly comprises a mounting sleeve 7 in a U-shaped structure, namely the mounting sleeve 7 is provided with two arms, the mounting sleeve 7 is clamped on the turntable 5, and the mounting sleeve 7 can be stably mounted on the turntable 5 by using a locking screw 26; an inner cavity 8 is arranged in one arm of the mounting sleeve 7, a push rod 9 is connected to the top of the inner cavity 8, the push rod 9 adopts a miniature electric push rod 9 and is pushed to and fro in the vertical direction, a T-shaped rod 10 is connected to the driving end of the push rod 9, the push rod 9 drives the T-shaped rod 10 to do reciprocating motion in the vertical direction in the inner cavity 8, the rod part of the T-shaped rod 10 penetrates through the bottom wall of the inner cavity 8 and extends to the outside of the mounting sleeve 7, a pressure sensor 11 is arranged on the rod part of the T-shaped rod 10, namely the pressure sensor 11 is connected with the upper part and the lower part of the T-shaped rod 10, when the push rod 9 pushes the T-shaped rod 10 to the lowest position, namely the head part of the T-shaped rod 10 is abutted against the lower surface of the inner cavity 8, the bottom end of the T-shaped rod 10 and the bottom end of the needle point are positioned on the same horizontal plane, and the bottom of the T-shaped rod 10 is also in a pointed structure and the same as the needle point structure of a stylus in order to accurately measure the needle pressure, after the pressure is adjusted, the push rod 9 is reset, and the T-shaped rod 10 moves upwards to reset.

Further, currently, for adjusting the needle pressure of the needle point, a user usually utilizes a counterweight for adjusting one end of the tone arm 4 far away from the tone needle to change the needle pressure, which is inconvenient, and after the counterweight is changed, the tone arm 4 rotates, so that the rotation resistance of the rotation shaft is increased, so that the lateral pressure applied to the needle point is increased, so that the abrasion of the needle point is accelerated, and secondly, because the adjustment range of the needle pressure is relatively small, usually several newtons or several tens of newtons, in order to improve the accuracy of the adjustment, the pressure adjusting assembly includes a jacket 12 disposed on the tone arm 4, a lower surface of the jacket 12 is provided with a first magnetic plate 13, and a second magnetic plate 14 is disposed below the jacket 12, a polarity of a lower surface of the first magnetic plate 13 is the same as a polarity of an upper surface of the second magnetic plate 14, so that the first magnetic plate 13 and the second magnetic plate 14 repel each other, and the height of the second magnetic plate 14 can be adjusted, the regulation of the repelling force of the first magnetic plate 13 is changed, so that the needle pressure regulation of the needle point is realized, the tone arm 4 rotates in the working process, in order to ensure the uniform stress in the whole process, the first magnetic plate 13 and the second magnetic plate 14 are both arc-shaped, and a uniform magnetic field is generated between the first magnetic plate 13 and the second magnetic plate 14, so that the needle pressure of the needle point is ensured to be unchanged in the moving process, meanwhile, the first magnetic plate 13 and the second magnetic plate 14 are regulated in a non-contact mode, the rotation resistance borne by the tone arm 4 in the rotating process can be reduced, the abrasion of the needle point is further reduced, and the service life of the needle point is prolonged; a pair of guide holes 15 are formed in the second magnetic plate 14, guide rods 16 penetrate through the guide holes 15, the bottom ends of the guide rods 16 are fixed on the record carrier 6, and the guide holes 15 and the guide rods 16 enable the second magnetic plate 14 to be adjusted in the vertical direction;

further, since the magnitude of the acupressure is finely adjusted, the force for adjusting the second magnetic plate 14 is also relatively fine, which is inconvenient for controlling the adjustment force, and in order to facilitate controlling the adjustment force, the adjustment force is amplified in the present embodiment, specifically, a pressure regulating box 17 is installed on the record carrier 6, an upper electromagnet 18 and a lower electromagnet 19 are respectively fixedly installed at the top and the bottom inside the pressure regulating box 17, and the upper electromagnet 18 and the lower electromagnet 19 generate mutually attracted magnetic fields; a Z-shaped pressure regulating plate 20 is arranged outside the pressure regulating box 17, the upper transverse section of the pressure regulating plate 20 extends into the space between the upper electromagnet 18 and the lower electromagnet 19 in the pressure regulating box 17 from an opening 26 arranged at one side of the pressure regulating box 17, the upper transverse section of the pressure regulating plate 20 is made of a magnetic material, and the polarity of the upper surface of the upper transverse section is the same as that generated by the upper electromagnet 18;

the end part of the lower transverse section of the pressure regulating plate 20 is connected with the second magnetic plate 14, the inclined section of the lower transverse section, which is close to the pressure regulating plate 20, is provided with a hinge seat 21 hinged with the lower transverse section, and the hinge seat 21 is fixed on the record seat 6; therefore, the pressure regulating plate 20 and the hinged seat 21 form a lever structure, the pressure regulating plate 20 between the hinged seat 21 and the second magnetic plate 14 is a pressure regulating arm, the pressure regulating plate 20 between the hinged seat 21 and the pressure regulating box 17 is a pressure applying arm, and the pressure applying arm is smaller than the pressure regulating arm, so that the pressure applying force applied by the pressure applying arm is greater than the pressure regulating force of the pressure regulating arm, the pressure regulating force is amplified, and the control difficulty of the pressure regulating force is reduced; secondly, the upper electromagnet 18 and the lower electromagnet 19 generate mutually attracted magnetic fields, and the polarity of the upper surface of the upper transverse section is the same as that generated by the upper electromagnet 18, so that the applied pressure on the upper transverse section is the difference between the repulsive force of the upper electromagnet 18 to the upper transverse section and the repulsive force of the lower electromagnet 19 to the upper transverse section, and the magnitude of the repulsive force to the upper transverse section is changed by changing the magnetic force of the upper electromagnet 18 or the lower electromagnet 19, so that the applied pressure is changed.

Furthermore, the end portion of the lower transverse section is connected with a U-shaped clamping plate 22, two arms of the U-shaped clamping plate 22 are clamped on the front side and the rear side of the second magnetic plate 14, connecting columns 23 are arranged in the middles of the front side wall and the rear side wall of the second magnetic plate 14, strip-shaped grooves 24 corresponding to the connecting columns 23 are arranged on the two arms of the U-shaped clamping plate 22, the connecting columns 23 are inserted in the strip-shaped grooves 24, namely, adjusting force is applied to the middle position of the second magnetic plate 14, and therefore the second magnetic plate 14 can be adjusted conveniently.

Further, a dial plate 25 is provided on the cartridge 5 to facilitate movement of the tone arm 4.

It should be noted that, for simplicity of description, the above-mentioned embodiments of the method are described as a series of acts or combinations, but those skilled in the art should understand that the present application is not limited by the order of acts described, as some steps may be performed in other orders or simultaneously according to the present application. Further, those skilled in the art should also appreciate that the embodiments described in the specification are preferred embodiments and that the acts and elements referred to are not necessarily required in this application.

Claims

1. A vinyl record device comprising a stylus, characterized in that: the stylus comprises a needle base (1) and a needle point connected to one end of the needle base (1), the needle point comprises a table body (2) and a cone body (3), one end, larger than the table body (2), of the table body is connected with the needle base (1), one end, smaller than the table body (2), of the table body is connected with the cone body (3), and an included angle formed between the inclined edge of the table body (2) of the axial cross section of the needle point and the inclined edge of the cone body (3) is an obtuse angle.

2. The vinyl recording apparatus of claim 1, wherein: the table body (2) is a circular table, and the cone body (3) is a cone.

3. The vinyl recording apparatus of claim 2, wherein: the included angle between the generatrix of the circular truncated cone and the axis is 30 degrees, and the included angle between the generatrix of the circular truncated cone and the axis is 60 degrees.

4. The vinyl recording apparatus of claim 1, wherein: the disc-type disc player also comprises a tone arm (4), a tone head (5) and a disc seat (6), wherein the tone head (5) is connected with one end of the tone arm (4), and the other end of the tone arm (4) is arranged on the disc seat (6); the other end of needle base (1) links to each other with the diapire of record head (5), be equipped with the adjustment mechanism who is used for automatically regulated needle point acupressure on record seat (6), adjustment mechanism includes pressure measurement subassembly and pressure regulating assembly.

5. The vinyl recording apparatus of claim 4, wherein: the pressure measuring assembly comprises a mounting sleeve (7) in a U-shaped structure, and the mounting sleeve (7) is clamped on the record head (5); an inner cavity (8) is arranged in one arm of the mounting sleeve (7), a push rod (9) is connected to the top of the inner cavity (8), the driving end of the push rod (9) is connected with a T-shaped rod (10), the push rod (9) drives the T-shaped rod (10) to reciprocate in the vertical direction in the inner cavity (8), the rod part of the T-shaped rod (10) penetrates through the bottom wall of the inner cavity (8) and extends to the outside of the mounting sleeve (7), and a pressure sensor (11) is arranged on the rod part of the T-shaped rod (10);

the rod part of the T-shaped rod (10) positioned below the pressure sensor (11) is of a pointed structure.

6. The vinyl recording apparatus of claim 4, wherein: the pressure regulating assembly comprises a jacket (12) arranged on the tone arm (4), a first magnetic plate (13) is arranged on the lower surface of the jacket (12), a second magnetic plate (14) is arranged below the jacket (12), the polarity of the lower surface of the first magnetic plate (13) is the same as that of the upper surface of the second magnetic plate (14), a pair of guide holes (15) are formed in the second magnetic plate (14), guide rods (16) penetrate through the guide holes (15), and the bottom ends of the guide rods (16) are fixed on the tone seat (6);

the CD seat (6) is provided with a pressure regulating box (17), the top and the bottom in the pressure regulating box (17) are respectively and fixedly provided with an upper electromagnet (18) and a lower electromagnet (19), and the upper electromagnet (18) and the lower electromagnet (19) generate mutually attracted magnetic fields; a Z-shaped pressure regulating plate (20) is arranged outside the pressure regulating box (17), the upper transverse section of the pressure regulating plate (20) extends into a position between an upper electromagnet (18) and a lower electromagnet (19) in the pressure regulating box (17) from an opening (26) arranged at one side of the pressure regulating box (17), the upper transverse section of the pressure regulating plate (20) is made of a magnetic material, and the polarity of the upper surface of the upper transverse section is the same as that generated by the upper electromagnet (18);

the end part of the lower transverse section of the pressure regulating plate (20) is connected with the second magnetic plate (14), the inclined section of the lower transverse section, which is close to the pressure regulating plate (20), is provided with a hinged seat (21) hinged with the lower transverse section, and the hinged seat (21) is fixed on the record seat (6).

7. The vinyl recording apparatus of claim 6, wherein: the first magnetic plate (13) and the second magnetic plate (14) are both arc-shaped.

8. The vinyl recording apparatus of claim 6, wherein: the end connection of lower horizontal section has U-shaped splint (22), both sides around second magnetic sheet (14) are established in the clamp of two arms of U-shaped splint (22), the middle part of both sides wall all is equipped with spliced pole (23) around second magnetic sheet (14) to be equipped with on two arms of U-shaped splint (22) with spliced pole (23) corresponding bar groove (24), spliced pole (23) are inserted and are established in bar groove (24).

9. The vinyl recording apparatus of claim 4, wherein: the pickup (5) is provided with a dial plate (25).