JP2939475B2 - Honing equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a honing apparatus (abrasive spraying apparatus), and more particularly, to a granular material (abrasive).
The present invention relates to a honing device capable of detecting clogging or the like in forced conveyance of a sheet.

[0002]

2. Description of the Related Art As is well known, a honing apparatus (or an abrasive spraying apparatus) is used, for example, when a matte pattern is formed on a surface of a metal product. As this type of honing device, for example,
As disclosed in, for example, Japanese Patent Publication No. 24, a cyclone type honing apparatus or a self-weight settling type honing apparatus is known.

FIG. 4 is a cross-sectional view showing an example of the configuration of a honing apparatus, in which 1 is a powder container for accommodating powder (abrasive), and 2 is a powder container in the powder container 1. An injection nozzle 4 for forcibly injecting the granular material 3 conveyed through the granular material transport path 2 onto the surface to be processed;
Reference numeral 5 denotes a powder / particle recovery means for transferring and recovering the powder / particles 3 injected from the injection nozzle into the powder / particle storage tank 1.

[0004] The honing apparatus is designed to meet the demands for expanding the range of application and the field of performance and to meet the demands for performance.
As shown in Japanese Utility Model Publication No. 333424, Japanese Utility Model Publication No. 5-24454, etc., there have been developed ones with various improvements and ideas. For example, a honing apparatus capable of automatically performing a surface treatment on a workpiece surface according to a preset program has been developed.

[0005]

However, in the case of the known honing apparatus, the following problems are recognized. That is, the honing device has been functionally improved and improved in response to practical demands.
Often, the flow of the powder 3 conveyed through the powder conveyance path 2 becomes uneven. Here, the flow of the granular material 3 may be uneven, in other words, the granular material 3 may be clogged in the granular material transport path 2 or the like, and as a result, a uniform honing process may be secured. There is also a possibility that the honing device may be operated or driven even if the processing is not performed (the finish processing is uneven) or the predetermined processing is not progressing due to the clogging of the powdery granules 3. In other words, it is not a practically satisfactory means in terms of always securing required honing processing and efficient honing processing, or economically securing highly reliable processing.

The present invention has been made on the basis of the above circumstances, and it is possible to easily and surely detect the clogging of a granular material in a granular material conveying path and take an appropriate countermeasure to efficiently perform high-quality honing processing. An object of the present invention is to provide a honing device that can be performed well.

[0007]

According to the present invention, there is provided a honing apparatus comprising: a granular material storage tank; a granular material transport path for forcibly transporting the granular material in the granular material storage tank; An injection nozzle for forcibly injecting the granules conveyed on the conveyance path to the surface to be processed, and a granule collection means for transferring and collecting the granules ejected from the injection nozzle into the granule storage tank. In the honing apparatus provided, a vibration sensing mechanism for detecting a forced conveying flow of the granular material as vibration is disposed in the granular material transport path, and an alarm is issued according to a non-sensing time of the vibration sensing mechanism. It is characterized in that an alarm generating means for generating an alarm is provided.

[0008]

In the honing apparatus according to the present invention, the powder (forcibly injected) which is forcibly injected and which hones the surface to be processed is conveyed (flowed) in the process of being forcibly conveyed through the powder / particle conveying path.
The condition is constantly checked by the vibration sensing mechanism, and an alarm is issued when an abnormality occurs. In other words, the granules forcedly conveyed in the granule conveying path are clogged and conveyed (flow) in the granule conveying path.
If the vibration is stopped or greatly reduced, the vibration accompanying the forced conveyance (fluidity) force of the granular material is also stopped or greatly reduced in conjunction with it. It is possible to easily avoid non-uniform processing, unnecessary processing operations, and the like.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS.

FIG. 1 is a cross-sectional view schematically showing a main part of a honing apparatus according to the present invention, wherein 1 is a powder container for storing powder (abrasive material), and 2 is the powder. This is a powder / particle transport path composed of, for example, a hard metal pipe for forcibly transporting the powder / particle 3 in the body container 1. Reference numeral 4 denotes an injection nozzle such as a hard metal nozzle for forcibly ejecting the conveyed powder 3 onto the surface of the workpiece through the powder / particle conveyance path 2 and reference numeral 5 denotes a powder or granule ejected from the injection nozzle 3 is a powder / particle recovery means for transferring and collecting the powder / particles 3 into the powder / particle storage tank 1. Here, the powder / particle recovery means 5 is, for example, a screw conveyor, a spring feeder, a fan, or the like, and forcibly ejects the powder / particle 3 for honing the surface of the workpiece (object). It is configured to be transferred / collected into the unit 1 and used repeatedly.

Further, reference numeral 6 denotes a vibration sensing mechanism interposed in the powdery material conveying path 2, and reference numeral 7 denotes an alarm means provided adjacent to the vibration sensing mechanism 6. Here, as shown in cross section in FIG. 2, the vibration sensing mechanism 6 is interposed (arranged) in the granular material conveying path 2, and an alarm means 7 is connected and arranged to the vibration sensing mechanism 6. . That is, the vibration sensing mechanism 6
A rod-like body or a plate-like body having a thickness that does not substantially impede the flow of the powdery material being forcibly conveyed, a vibration sensor (vibration detector) 6a formed in a length, and Vibration sensor 6b arranged corresponding to the vibration direction plane of vibration sensor 6a
Is provided. Then, the tip of the vibration sensor 6a of the vibration sensing mechanism 6 is mounted in the granular material transport path 2 through an insertion hole 2a formed in the side wall of the granular material transport path 2, while the insertion hole An O-ring 8 is arranged between the inner wall surface 2a and mounted and supported in a sealed form. Here, the material and shape of the vibration sensor 6a may be appropriately selected depending on the type of the granular material, the flow velocity of the granular material, and the like. In general,
Taking into account the wear due to the impact of the granular material, it is desirable to use a material of high rigidity, such as steel or ceramics, which is hard and easy to transmit vibration, and the thickness or width is at most 1/3 of the diameter of the granular material transport path 2.
The length may be about or several mm, such that the leading end reaches the center of the diameter of the granular material conveying path 2.

The vibration sensor 6b includes a vibration sensor 6a
(The flow axis direction of the granular material transport path 2) is attached as a detection direction. In this configuration, the powder material conveying path 2
The vibration sensor 6a generates vibration with the O-ring 8 as a fulcrum due to the flow of the granular material conveyed, and the vibration is efficiently transmitted to the vibration sensor 6b. Here, while being transmitted to the vibration sensor 6b, it indicates that the granular material is steadily transported along the granular material transport path 2, and the vibration sensor
When the transmission of the vibration to 6b is stopped, it indicates that the granular material 3 has been clogged in the granular material transport path 2. When the vibration sensor 6b stops transmitting vibration, the vibration transmission stop time (interval) is detected by the timer 7a, and when a certain time or a certain integration time has elapsed, the alarm 7b is linked with the timer 7a. It is configured to issue an alarm. The mounting position of the vibration sensing mechanism 6 is determined in consideration of other mechanisms of the honing device, for example, the structure of the powdery material storage tank 1, so that the original function of clog detection can be more effectively performed. Select as appropriate. Next, an operation example of the honing apparatus having the above-described configuration will be described.

FIG. 3 is a flowchart for the honing apparatus according to this embodiment. When the honing process is started, the timer 7a connected to the vibration sensor 6b of the vibration sensing mechanism 6 is reset. In this state, the granular material 3 in the granular material storage tank 1 is forcibly transported through the granular material transport path 2, and the granular material 3 is injected to the surface of the workpiece through the injection nozzle 4, and the required honing is performed. Apply processing. Here, when the granular material 3 is constantly conveyed in the granular material conveying path 2 and normal honing is performed, the vibration is continuously transmitted from the vibration sensor 6a of the vibration sensing mechanism 6 to the vibration sensor 6b. The horning process is continued while the timer 7a is reset. On the other hand, if the powder / particle transport path 2 enters an abnormal transport state due to clogging of the powder / particle 3 or the like, the vibration sensor
Since the transmission of vibration from 6a to vibration sensor 6b stops or takes an interval, the timer 7a starts counting, and after a certain period of time (for example, about 5 seconds), the time is up and the alarm 7b operates automatically. Then, the clogging of the granular material 3 is warned.

The present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the invention. For example, in the above embodiment, the output of the vibration sensor 7 is on-off, but it is also possible to determine clogging as an analog output from the magnitude of the analog output. In addition, the alarm means may be configured to notify by an indicator light or a rotating light, for example, instead of the alarm device.

[0015]

As can be seen from the above embodiment and the general description, according to the honing apparatus according to the present invention, when the granular material as the processing agent is clogged in the granular material conveying path, And it can detect promptly. That is, it is possible to reliably prevent the polishing process of the uneven pattern due to the uneven flow amount of the powder or the honing process which is wasteful (inability of the honing process due to clogging). Moreover, the clogging detection (sensing) of the granular material is
Since the clogging is notified in conjunction with the alarm means, when the driving source of the honing device is controlled using this interlocking, an automatic control operation becomes possible. Further, in this configuration, since there is no increase in the size of the honing device or complicated operation, there are many advantages in terms of practicality, in combination with the fact that the highly reliable honing process can be always performed. It can be said that it brings.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing an example of a main part configuration of a honing device according to the present invention.

FIG. 2 is an enlarged sectional view showing a vibration sensing mechanism of the honing device shown in FIG. 1;

FIG. 3 is a flowchart for explaining an example of use and operation of the honing device according to the present invention.

FIG. 4 is a cross-sectional view showing a configuration of a main part of a conventional honing device.

[Explanation of symbols]

1 ... powder and granular material storage tank 2 ... powder and particle transport path 2a
... Insertion hole 3... Granular material 4... Injection nozzle 5... Granular material collecting means 6... Vibration sensing mechanism
6a… Vibrator 6b… Vibration sensor 7…
... Alarm means 7a ... Timer 7b ... Alarm 8
...... O-ring

Continuation of front page (56) References JP-A-2-131187 (JP, A) JP-A-60-131358 (JP, U) JP-A-62-81566 (JP, U) JP-A-3-33424 (JP) , Y2) Jiko 5-24454 (JP, Y2) (58) Fields investigated (Int. Cl. ⁶ , DB name) B24C 7/00

Claims (2)

(57) [Claims] 1. A powder and granular material storage tank, a powder and granular material transport path for forcibly transporting the powder and granular material in the powder and granular material storage tank, and a powder and granular material transported through the powder and granular material transport path are processed. A honing device comprising: an injection nozzle forcibly injecting the powder onto a surface; and a powder and granular material recovery means for transferring and recovering the powder and granular material injected from the injection nozzle into the powder and granular material storage tank. In the transport path , the vibrations against which
A motion sensor is protruded, a vibration sensing mechanism for detecting the vibration of the vibration sensor is provided, and alarm means for activating an alarm in accordance with a non-sensing time of the vibration sensing mechanism is provided. Honing equipment. 2. A vibration sensing mechanism, vibrator, honing device of claim 1, wherein that you are configured by the vibration sensor in contact with the O-ring and vibrator serving as a fulcrum of the vibrator.