JPS645512Y2 - - Google Patents

Description

[Detailed explanation of the invention] [Industrial application field] This invention is based on the idea that purified compressed air is blown onto green onions, other chives, spinach, etc. that have been harvested prior to shipment to the market, and the resulting pressure causes them to stick together. In addition to removing the soil and withered leaves,
Furthermore, in the case of green onions, the present invention relates to an improvement in an automatic peeling and cleaning machine for green onions, etc., for peeling the outer skin and cleaning the green onions without involving manual labor.

[Conventional technology]

2. Description of the Related Art As part of efforts to improve the efficiency of agricultural work, so-called automatic peeling machines are known that spray clean compressed air on harvested green onions and the like to peel off the outer skin.

For example, Utility Model Publication No. 59-17194 by the present applicant,
This is the invention of Utility Model Publication No. 61-3352 and Utility Model Publication No. 62-16863.

[Problem that the invention attempts to solve]

By the way, in such conventional automatic peeling machines, the jet noise of the compressed air jetted out from the jet nozzle during work is emitted into the atmosphere, which not only has a negative impact on the worker, but also has a negative impact on the surrounding area. However, there were some shortcomings that contributed to noise pollution. According to actual measurements, the injection sound was over 100 phons.

Therefore, as a means to suppress such noise, a tunnel-shaped soundproofing device in which the inner surface of the air passage of the high-speed airflow injected from the injection nozzle is lined with sound-absorbing material, as disclosed in Japanese Utility Model Application Publication No. 114696/1980, etc. has been devised.

However, in the soundproofing device according to this invention, the injection nozzle, which is the source of the noise, remains exposed on the table, and only the air passage away from the injection nozzle is covered with a tunnel-shaped soundproofing device.

Therefore, even the soundproofing devices that have been well-developed have not been able to sufficiently exhibit their noise suppression effects.

The present invention has been devised for the purpose of providing an automatic peeling and cleaning machine that can effectively suppress noise that restricts work efficiency.

[Means for solving problems]

In order to eliminate the above-mentioned drawbacks, the features of the configuration adopted by the present invention are as follows: First, a cylindrical soundproof room is constructed in which the entire inner peripheral wall is lined with sound absorbing material, and the ceiling of the cylindrical soundproof room is The part corresponding to the above is configured and attached to a removable lid body. The front end of this cylindrical soundproof chamber is formed as an insertion port for the object, and the rear end is formed as an outlet for discharging the epidermis, etc. detached from the object.

Next, a jet nozzle for compressed air passing through a purifier is provided in the cylindrical soundproof chamber adjacent to the insertion port. That is, the ejection nozzle is provided so as to be located within the cylindrical soundproof chamber, and the structure is such that the noise generated from the ejection nozzle is confined within the cylindrical soundproof chamber as much as possible.

Moreover, a horizontal guide plate is provided on the lower edge of the insertion opening.
In addition, the front edge of the guide plate is bent round and installed so that the front edge is positioned in front of the jet nozzle to prevent the jet noise from the jet nozzle from radiating toward the insertion port. The reason is that it has a unique structure.

[Effect]

Since the present invention is configured as described above, noise is suppressed when the object is inserted through the insertion port, compressed air is jetted out from the jet nozzle, and the epidermis, etc. is peeled off.

That is, in the present invention, the jet nozzle, which is the source of noise generation, is covered with a soundproof chamber, and the noise is confined within the soundproof chamber, so that the soundproofing effect is higher than that of the conventional method.

Furthermore, a horizontal guide plate is attached to the lower edge of the insertion port of the object, that is, the object to be processed, and the front edge of this guide plate is bent roundly, and the front edge is positioned in front of the spout of the jet nozzle. This structure prevents noise from being dissipated to the outside from the insertion port.

〔Example〕

Next, the proposed structure will be explained in detail based on an example. First, as shown in FIG. has been done. As the sound absorbing material 2, a soft porous material such as urethane foam is used.

Furthermore, the part corresponding to the ceiling of the cylindrical soundproof room 1 and the part constituting the object insertion opening 3 are constructed with a lid 1' structure that can be separated and removed from the main body, as shown in FIG. It has a structure that allows it to be fastened and integrated with the main body using 4.

Reference numeral 5 is an outlet for discharging the epidermis, etc., peeled off from the object at the rear end of the cylindrical soundproof chamber 1, and 6 is a storage bag for the same.
A pair of jet nozzles 7 are attached to the bottom of the cylindrical soundproof chamber 1 adjacent to the object insertion port 3 so as to face each other. That is, the jet nozzle 7, which is a source of noise, is covered with the cylindrical soundproof chamber 1. The object is inserted through the insertion opening 3 so as to be set between the jet nozzles 7 in the cylindrical soundproof chamber 1.

Further, the blowing nozzles 7 are fixedly attached to elongated holes 8 formed in the bottom of the cylindrical soundproof chamber 1 so that the blowing direction of compressed air and the facing distance can be adjusted. That is, the ejection nozzle 7 is inserted into the elongated hole 8, its directionality and position are regulated, and then the set screw 9 is tightened and fixed. When the set screw 9 is loosened, the jet nozzle 7 becomes free.

Next, as shown in FIG. 1, the object insertion opening 3 has a guide plate 10 attached to the lower edge of the insertion opening 3, which serves as a guide when inserting the object.

Then, as shown in FIG. 2, the front edge 1 of the guide plate 10
1, that is, the side of the cylindrical soundproof chamber 1 is bent round and stopped before the spout of the jet nozzle 7.
The reason is to prevent the ejected air from hitting the guide plate 10 and the reflected sound from radiating outside from the insertion port 3.

Furthermore, the front end of the cylindrical soundproof chamber 1, that is, the front end of the lid body 1', is cut into a U-shape as shown in FIG. 12 are provided.

A transparent sound insulating plate 13 is placed over the viewing window 12 and the insertion port 3 to block noise escaping from the cylindrical soundproof chamber 1 to the outside. 14
is a hinge for reversibly attaching the sound insulating plate 13 to the cylindrical sound insulating chamber 1.

Next, a detection sensor 15 for detecting an object is provided on the side of the insertion port 3.

Figure 3 shows the installation procedure, in which the base end of the arm 17 is tiltably pivoted to the machine frame 16 that supports the cylindrical soundproof room 1, and the detection sensor 15 can be slid in the axial direction on the upper end. It is installed according to the instructions.
That is, by adjusting the tilt of the armrest 17, moving the detection sensor 15 in the axial direction, and adjusting its mounting position, the position of the search line transmitted can be adjusted up and down.

As the detection sensor 15, a reflective photoelectric sensor is used, which detects the confirmation of the target object by irradiating the object with synchrotron radiation and receiving the reflected light of the radiation light. are doing. Of course, it is also possible to use an ultrasonic type sensor other than the photoelectric type as the detection sensor. The mechanism for feeding back the detection signal to the on-off control valve provided in the compressed air supply pipe system to control the stoppage of compressed air supply is the same as the configuration of the conventional device.

In addition, a compressor is used as the supply source of compressed air, and a purification device is installed in the supply pipe system connecting the compressor and the jet nozzle 7 to remove oil, moisture, etc. from the compressed air to make clean compressed air. The structure is also the same as that of conventional automatic peeling machines.

Since the present invention is configured as described above,
First, the lid 1', which corresponds to the ceiling of the cylindrical soundproof room 1, is removed by loosening the wing nut 4, and the direction and position of the compressed air injection are adjusted according to the object to be soundproofed. After that, the lid 1' is attached to complete the cylindrical soundproof room 1.

A guide plate 10 is provided with a detection sensor 15 that similarly detects the object at the lower edge of the object insertion opening 3.
Using this as a reference, the arm 17 is tilted and adjusted vertically so that the search line is included in the detection area of the object. The lock nut shown in the figure is for fixing the arm 17 and the detection sensor 15 after adjustment, and has a wing nut structure.

When the above preparations are completed, the object, for example a green onion, is inserted into the cylindrical soundproof chamber 1 through the insertion opening 3 with the root first.

Next, when the leaf tip side of the green onion is set on the guide plate 10, the detection signal from the detection sensor 15 is fed back to the opening/closing control valve installed in the compressed air supply pipe, and the compressed air is blown onto the target object. Start peeling work. Since the blowout time of compressed air is set in advance in the opening/closing control valve, the blowing of compressed air automatically stops after blowing compressed air for a predetermined period of time. At the same time as stopping, pull out the object from the insertion port 3,
Complete a given processing task.

[Effect of idea]

Since the present invention is constructed as described above, the noise that was conventionally generated during work is absorbed by the sound absorbing material 2 lined within the cylindrical soundproof chamber 1. In particular, this invention has a high noise suppression effect because the injection nozzle 7, which is the source of noise, is enclosed and installed within the cylindrical soundproof chamber 1.

Furthermore, since some of the sounds emitted to the outside from the insertion port 3 and the viewing window 12 are blocked by the sound insulating plate 13, the noise is not emitted to the outside more than necessary. Furthermore, the front end edge 10' of the guide plate 10 attached to the lower edge of the insertion port 3 is roundly curved, and its position is restricted to be located in front of the outlet of the outlet nozzle 7. , the injected air reaches the guide plate 10
In this case, the reflected sound will not be radiated to the outside from the insertion port 3. Therefore, the peeling work can be done for a long time and does not cause noise pollution. Actual measurements showed that the reduction was reduced to less than 1/3 of the conventional level.

Next, it is of course possible to adjust the position and direction of the injection nozzle 7 that blows compressed air to the target object, as well as the detection sensor 15 that detects the presence of the target object, to an appropriate position according to the target object. be. Therefore, a wide variety of objects can be processed efficiently. In other words, it is possible to further expand the functions of conventional automatic peeling machines and to fully demonstrate its power as an automatic peeling machine with high soundproofing effects and high work efficiency.

[Brief explanation of drawings]

Fig. 1 is a partially cutaway perspective view of the automatic peeling and purifying device according to the present invention, Fig. 2 is an exploded perspective view of the cylindrical soundproof chamber, and Fig. 3 is a cross-section of the jet nozzle attachment part. The front view and FIG. 4 are side views of the detection sensor mounting portion. 1... Cylindrical soundproof chamber, 2... Sound absorbing material, 3... Insertion port, 4... Butterfly nut, 5... Outlet, 6... Storage bag, 7... Spout nozzle, 8... Long hole, 9...Set screw, 10...Guide plate, 10'...Front edge of guide plate, 11...Front edge of guide plate, 12...Peep window, 1
3... Sound insulation board, 14... Hinge, 15... Detection sensor, 16... Machine frame, 17... Arm, 18... Lock nut.

Claims (1)

[Scope of utility model registration request] The part corresponding to the ceiling of the cylindrical soundproof chamber lined with sound-absorbing material is configured as a removable lid, and the front end of this cylindrical soundproof chamber is used as the insertion opening for the object.
Automatic peeling of green onions, etc., in which the rear end is formed as a discharge port, a compressed air jet nozzle is installed near the insertion port, and a detection sensor for detecting an object is installed on the side of the insertion port. In the purifier, the jet nozzle is installed in a cylindrical soundproof chamber, a horizontal guide plate is attached to the lower edge of the insertion opening, and the front edge of the guide plate is bent round, An automatic peeling and purifying machine for green onions, etc., characterized in that the front edge of the spout nozzle is regulated and installed so that it is positioned in front of the spout.