CN219570584U

CN219570584U - High-rigidity ultra-smooth vacuum chuck for record player

Info

Publication number: CN219570584U
Application number: CN202320233449.7U
Authority: CN
Inventors: 马元中
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-02-16
Filing date: 2023-02-16
Publication date: 2023-08-22
Anticipated expiration: 2033-02-16

Abstract

The utility model discloses a high-rigidity ultra-smooth vacuum sucker for a record player, which comprises a base body, wherein the middle of the base body is a central positioning shaft, the bottom of the base body is provided with a mounting groove matched with a bearing, the upper surface of the base body is provided with a groove, a ceramic sucker is nested in an air passage recess reserved on the upper surface of the base body, and the periphery of the ceramic sucker is in sealing connection with the base body. At least two circles of annular air passage grooves are formed in the surface of the substrate under the ceramic sucker, and the adjacent annular air passage grooves are communicated through a plurality of radial air passage grooves. The annular air passage groove closest to the central shaft is a first annular air passage groove, and negative pressure air passages communicated with the mounting groove are uniformly distributed in the first annular air passage groove. The ceramic sucker has air permeability, and utilizes the characteristics of the material of the ceramic sucker to form omnibearing uniform lamination between the record and the ceramic sucker, so that the whole stress of the record is balanced, the evenness of the record surface is greatly improved, and the accuracy of needle tracking is also improved.

Description

High-rigidity ultra-smooth vacuum chuck for record player

Technical Field

The utility model belongs to the technical field of sound equipment, and particularly relates to a vacuum chuck for placing a black glue record on a record player in a sound system.

Background

Vibration is known to be an important factor affecting the sound quality of a record player. In the conventional design of record players, when a record is played, the record is generally directly placed on a turntable, the record and the turntable are not tightly combined, the record is easy to slide, and excessive vibration which is also more liable to be negatively affected is generated. Such as drums and gongs, are sounded by vibration of a single material. The record is made of bakelite, is light and elastic, and can generate harmful vibration during the running of the record. Meanwhile, the record is light and thin and is more easily influenced by external vibration, such as sound waves, motors and the like. These superimposed vibrations will be transmitted to the stylus, severely affecting the play effect. Later designs have also had vacuum chucks to solve the problem of record and substrate bonding. However, two negative pressure air holes or a cross-shaped 4-way negative pressure small air passage are simply reserved on the surface of the matrix, so that the stress on the surface of a record is not uniform, gaps are formed between the record and the turntable, the unstressed part of the record is easy to warp upwards, the harmful vibration amplitude is increased, and the playing sound effect is seriously influenced. Meanwhile, the design of the turntable does not consider the resonance problem of the substrate, and the conduction of harmful vibration can not be fundamentally solved.

Disclosure of Invention

In view of this, the present utility model provides a high-rigidity ultra-smooth vacuum chuck for a record player, which makes technical innovation with respect to the conventional chuck. A plurality of annular air passage grooves are uniformly formed in a sucker base body, the adjacent annular air passage grooves are communicated through a plurality of radial air passage grooves, and then a vacuum ceramic sucker is installed on the upper surface of the base body. Thus, when playing the record, the record is placed on the high-rigidity ultra-smooth ceramic sucker, and the ceramic sucker has air permeability. When a record is played, the air flow is firstly uniformly sucked downwards by the ceramic sucker in a negative pressure way, and then flows among the annular air passage grooves, the radial air passage grooves and the air passages, so that the suction force of the record is uniform and omnibearing by the air permeability of the ceramic material, the record is uniformly stressed, and the gap between the record and the turntable is effectively reduced. Because the gaps can add excessive harmful vibrations, the tracking of the tiny needle itself is severely affected. Meanwhile, the high-rigidity sucker provides a firm high-rigidity chassis support for the thin and elastic vinyl record, so that more harmful vibration is avoided, even if the vinyl record is deformed, the vinyl record can be tightly attached to the surface of the high-rigidity ultra-smooth sucker, and redundant harmful vibration caused by record deformation is greatly reduced.

The utility model is realized by the following technical scheme:

the utility model provides a high rigidity ultra-smooth vacuum chuck for record player, includes the base member, is central location axle in the middle of the base member, is provided with the mounting groove that matches with the bearing in the base member bottom, is provided with the recess at the base member upper surface, and ceramic chuck nestification is in the air flue recess that the base member upper surface reserved, is sealing connection between ceramic chuck and the base member around. At least two circles of annular air passage grooves are formed in the surface of the substrate under the ceramic sucker, and the adjacent annular air passage grooves are communicated through a plurality of radial air passage grooves. The annular air passage groove closest to the central shaft is a first annular air passage groove, and negative pressure air passages communicated with the mounting groove are uniformly distributed in the first annular air passage groove.

The high-rigidity ultra-smooth vacuum chuck for the record player is characterized in that the substrate is a metal substrate.

The high-rigidity ultra-smooth vacuum chuck for the record player is characterized in that the annular air passage groove is five circles.

The high-rigidity ultra-smooth vacuum chuck for the record player is characterized in that the basal body is also provided with a lip groove, and the lip sleeve is clamped in the lip groove.

The high-rigidity ultra-smooth vacuum sucker for the record player is characterized in that the lip edge is a rubber lip edge, and the rubber lip edge is stuck into the lip edge groove and then is glued in the lip edge groove.

The high-rigidity ultra-smooth vacuum chuck for the record player is a microporous vacuum ceramic chuck.

The utility model provides a high-rigidity ultra-smooth vacuum chuck for a record player. The traditional sucker is modified, a plurality of annular air passage grooves are uniformly formed in a sucker substrate, the adjacent annular air passage grooves are communicated through a plurality of radial air passage grooves, and then a ceramic sucker is installed on the upper surface of the substrate. Thus, when playing a record, the record is placed on the ceramic vacuum chuck. The ceramic sucker has air permeability, and utilizes the characteristics of the material of the ceramic sucker to form omnibearing uniform lamination between the record and the ceramic sucker, so that the whole stress of the record is balanced, the evenness of the record surface is greatly improved, and the accuracy of needle tracking is also improved. When a record is played, the airflow is firstly uniformly sucked downwards by the ceramic sucker under negative pressure. The negative pressure air flow flows among the annular air passage grooves, the radial air passage grooves and the air passages, so that the suction force on the record disc is uniform and omnibearing negative pressure air flow is generated by the air permeability of the ceramic material, and the record disc is uniformly stressed. Meanwhile, the high-rigidity ceramic sucker provides a firm chassis support for the thin and elastic vinyl record, avoids more harmful vibration, can be tightly attached to the surface of the high-rigidity sucker even if the vinyl record is deformed, and greatly reduces redundant harmful vibration caused by record deformation.

Drawings

Fig. 1 is a schematic diagram of the structure of the utility model.

Fig. 2 is a cross-sectional view A-A of fig. 1.

FIG. 3 is a schematic structural view of the substrate of the present utility model.

Fig. 4 is a B-B cross-sectional view of fig. 3.

Wherein reference numerals are as follows:

1. the base body, 2, a first annular air passage groove, 3, a base body air passage, 4, a central positioning shaft, 5, a mounting hole, 6, an annular air passage groove, 7, a radial air passage groove, 8, a mounting groove, 9, a ceramic sucker, 10, a lip, 11 and a lip groove.

Detailed Description

As shown in fig. 1-4, a high-rigidity ultra-smooth vacuum chuck for a record player comprises a substrate 1, a central positioning shaft 4 is arranged in the middle of the substrate, a mounting groove 8 matched with a bearing is formed in the bottom of the substrate, a groove is formed in the upper surface of the substrate, a ceramic chuck 9 is nested in the groove in the upper surface of the substrate, the periphery of the ceramic chuck is in sealing connection with the substrate, at least two circles of annular air passage grooves 6 are formed in the upper surface of the substrate below the ceramic chuck, adjacent annular air passage grooves are communicated through a plurality of radial air passage grooves 7, the annular air passage groove closest to a central shaft is a first annular air passage groove 2, and negative pressure air passages 3 communicated with the mounting groove are uniformly distributed in the first annular air passage groove.

The utility model relates to a high-rigidity ultra-smooth vacuum chuck for a record player, wherein the substrate is a metal substrate.

The utility model relates to a high-rigidity ultra-smooth vacuum chuck for a record player, which is characterized in that the grooves of an annular air passage are five circles.

The utility model relates to a high-rigidity ultra-smooth vacuum chuck for a record player, wherein a base body is also provided with a rubber lip groove 11, and a lip 10 is sleeved and clamped in the lip groove 11.

In the experiment, the lip adopts a rubber lip, and the rubber lip sleeve is clamped in the lip groove and is glued in the lip groove.

The utility model relates to a high-rigidity ultra-smooth vacuum chuck for a record player, which is a microporous vacuum ceramic chuck. The ceramic sucker itself has air permeability. Because the ceramic sucker has air permeability, the suction force is more uniform, the ceramic sucker is attractive, and the manufacturing cost is high. Meanwhile, the small-diameter black rubber record can be used, and no airflow noise is generated.

In the base body, a plurality of radial air passage grooves 7 between adjacent annular air passage grooves are uniformly arranged in a radial shape by taking a central shaft as a center.

In the experiment, the annular air passage groove is four or five circles. Of course, the type of the sucker can change the specification according to the size of negative pressure, and the number of the annular airway groove is increased by a plurality of circles when the negative pressure is large.

The working process of the utility model is as follows:

when in use, as shown in fig. 1-4, the bearing is arranged in the mounting groove 8 of the sucker base body by using the bolts to penetrate through the bearing and the mounting hole 5 of the utility model, the record is placed on the ceramic sucker, then the lip sleeve is clamped into the lip groove, the lip sleeve is stuck into the lip groove, the effect of being glued in the lip groove is better, when the air compressor is started, negative pressure is generated in the air channel 3, the central shaft is taken as the center, air flows from the annular air channel groove far away from the central shaft and the radial air channel groove to the first annular air channel groove and the air channel in sequence, negative pressure suction is generated between all the annular air channel grooves and the record and between all the radial air channel grooves and the record, and the annular air channel grooves are uniformly distributed on the base body, and the ceramic sucker is attached on the base body, so that the air flow on the upper part of the ceramic sucker is uniformly sucked from the surface of the ceramic sucker to the annular air channel groove and the radial air channel groove, and then the air compressor is fed by the air channel, and the record can be uniformly stressed and firmly adsorbed on the ceramic sucker. Even if the deformed black glue record is deformed, the black glue record can be smoothly sucked on the surface of the high-rigidity ceramic sucker, redundant harmful vibration caused by record deformation can be effectively avoided, and the playing effect can be obviously improved. Because the material of ceramic sucker has the gas permeability, its suction is more even, and is pleasing to the eye moreover, even the minor diameter record also can play, can not produce the air current noise moreover.

The utility model makes technical innovation on the traditional sucker. The utility model relates to a high-rigidity ultra-smooth vacuum chuck for a record player, which is characterized in that a plurality of annular air passage grooves are uniformly formed on a chuck base body, the adjacent annular air passage grooves are communicated through a plurality of radial air passage grooves, and then a vacuum ceramic chuck is arranged on the upper surface of the base body. Thus, when playing the record, the record is placed on the high-rigidity ultra-smooth ceramic sucker, and the ceramic sucker has air permeability. When a record is played, the air flow is firstly uniformly sucked downwards by the ceramic sucker in a negative pressure way, and then flows among the annular air passage grooves, the radial air passage grooves and the air passages, so that the suction force of the record is uniform and omnibearing by the air permeability of the ceramic material, the record is uniformly stressed, and the gap between the record and the turntable is effectively reduced. Because the gaps can add excessive harmful vibrations, the tracking of the tiny needle itself is severely affected. Meanwhile, the high-rigidity sucker provides a firm high-rigidity chassis support for the thin and elastic vinyl record, so that more harmful vibration is avoided, even if the vinyl record is deformed, the vinyl record can be tightly attached to the surface of the high-rigidity ultra-smooth sucker, and redundant harmful vibration caused by record deformation is greatly reduced.

The technical means disclosed by the scheme of the utility model is not limited to the technical means disclosed by the embodiment, and also comprises the technical scheme formed by any combination of the technical features. It should be noted that modifications and adaptations to the utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be within the scope of the present utility model.

Claims

1. The utility model provides a high rigidity ultra-smooth vacuum chuck for record player, includes base member (1), is central location axle (4) in the middle of the base member, is provided with mounting groove (8) that match with the bearing in the base member bottom, its characterized in that: the ceramic sucker is characterized in that an air passage groove is formed in the upper surface of the base body, a ceramic sucker (9) is nested in the air passage groove, the periphery of the ceramic sucker is in sealing connection with the base body, at least two circles of annular air passage grooves (6) are formed in the surface of the base body under the ceramic sucker, the adjacent annular air passage grooves are communicated through a plurality of radial air passage grooves (7), the annular air passage groove closest to the central shaft is a first annular air passage groove (2), and negative pressure air passages (3) communicated with the mounting groove are uniformly distributed in the first annular air passage groove.

2. The high-rigidity ultra-smooth vacuum chuck for a record player according to claim 1, wherein: the matrix is a metal matrix.

3. The high-rigidity ultra-smooth vacuum chuck for a record player according to claim 1, wherein: the annular air passage groove is five circles.

4. The high-rigidity ultra-smooth vacuum chuck for a record player according to claim 1, wherein: the base body is also provided with a lip groove (11), and the lip (10) is clamped in the lip groove.

5. The high-rigidity ultra-smooth vacuum chuck for a record player according to claim 4, wherein: the lip is a rubber lip, and the rubber lip is stuck into the lip groove and then is adhered in the lip groove by using an adhesive.

6. The high-rigidity ultra-smooth vacuum chuck for a record player according to claim 1, wherein: the ceramic sucker is a microporous vacuum ceramic sucker.