JP3435564B2 - Stripping method in long onion cutting and stripping machine - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for peeling / peeling a long green onion and a peeling machine for removing green onion and other deposits by compressed air sprayed from a nozzle.

[0002]

2. Description of the Related Art As disclosed in Japanese Patent Application No. 8-8886, the applicant of the present application cuts off roots and leaf tips, which are unnecessary parts of harvested green onion, and cuts them with compressed air to remove skin and other substances. We propose a long green onion cutting and peeling machine that continuously performs a blow process, which is a process of peeling and removing the adhered substances. This onion cutting and peeling machine conveys the onion in a horizontal state, performs a cutting process to cut the root and leaf tips at a desired length, and then from the leaf tip side of the onion to the root side. Compressed air is blown so as to flow along with, and a blow process is performed to blow away the skin and other deposits attached to the onion. In this blowing process, compressed air having a constant pressure is jetted and sprayed from a nozzle fixed to the leaf tip side of the long onion.

[0003]

However, in the above-mentioned machine for cutting and peeling green onion, the stem (meat) on the leaf tip side of the onion is
Since the hardness of the tissue is soft compared to the meat on the root side, compressed air with a pressure that can blow away all the skin and other deposits from the leaf tip side to the root side is sprayed on the long onion. The pressure on the leaf tip side was too strong, and the meat on the leaf tip side was damaged. By the way, it was impossible to blow off the peels and adhered substances on the root side with compressed air having a pressure that does not damage the meat on the leaf tip side.

In view of the above, the present invention reduces the amount of compressed air sprayed on the soft tissue portion on the leaf side of the onion.
The amount of spray is increased to the root portion where the tissue is hard, so that the long green onion can be effectively peeled off so as not to damage the dough.

[0005]

The method for removing peeling of onion of the present invention, which has solved the above-mentioned problems, is a method for removing the peel and deposits of onion by blowing compressed air sprayed from a nozzle onto the onion. In a peeling treatment method in a cutting and peeling processing machine of onion, a step of transporting the above-mentioned onion with a leaf tip portion and a root cut with a bucket, and the root side of the transported onion,
While lifting with the rear end support portion where the elastic member is fixed to the upper portion, the leaf tip side is lifted and fixed with the front end support portion where the elastic member is fixed to the upper portion, and the cylinder rod from the root side of the onion. the moved, the elastic member of the rear supporting portion by the tip portion of the cylinder rod Shirindaro
A step of inclining in the advancing direction of the pad, inserting the onion into the cylinder rod from the root side, and covering the onion.
By moving the cylinder rod, the nozzle provided on the cylinder rod is controlled to move along the root side from the leaf tip side of the onion, and while the nozzle is moved, And a step of increasing the spraying force of the compressed air sprayed on the long green onion.

At this time, the step of controlling the movement of the nozzle along the root side from the leaf tip side of the long green onion, the step of detecting the position of the nozzle to be movement-controlled, and the position of the detected nozzle. Accordingly, the step of adjusting the pressure of the compressed air so that the blowing force of the compressed air sprayed on the onion to be peeled increases, and the compressed air with the increased blowing force is passed through the nozzle to the onion. And a step of injecting.

Further, according to the step of controlling the movement of the nozzle along the root side from the leaf tip side of the long green onion, the step of detecting the position of the nozzle whose movement is controlled, and the position of the detected nozzle. The step of adjusting the moving speed of the nozzle so that the blowing force of the compressed air blown onto the onion to be peeled is increased, and the compressed air having the increased blowing force is jetted to the onion through the nozzle. It is also possible to have a step.

Further, the step of controlling the movement of the nozzle along the root side from the leaf tip side of the long green onion, the step of detecting the position of the nozzle to be movement-controlled, and the position of the detected nozzle. Accordingly, a step of adjusting the moving speed of the nozzle so that the blowing force of the compressed air blown to the onion to be peeled increases, and the compressed air having the increased blowing force is jetted to the onion through the nozzle. And a step of performing.

On the other hand, the property of the onion to be stripped is detected, and based on the detected property of the onion to be stripped,
At least one of the pressure of the compressed air and the speed of the nozzle may be adjusted.

Further, the blowing force of the compressed air can be increased stepwise or continuously.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a peeling treatment method in a cutting and peeling treatment machine for long green onion according to the present invention will be described in detail below. FIG. 1 is a schematic diagram of a long-green onion cutting / peeling processing machine for performing long-green onion peeling processing according to the present invention.

Usually, the long onion N is continuously subjected to a peeling treatment after the leaf tip portion and the root are cut by the cutting treatment. In the device shown in FIG. 1, a front support shaft 10 having sprockets 11 at the front left and right ends, and a rear support shaft 20 having sprockets 21 at the rear left and right ends are pivotally supported. A chain 31 is wound between sprockets 11 and 21 which are respectively supported by the front and rear support shafts 10 and 20, and buckets 15, 15 ... Having a U-shaped side surface are continuously provided on the chain 31. It is attached to the to form a kind of bucket conveyor. Further, a drive motor M is fixed below one end of the rear support shaft 20, and a sprocket 24 fixed to a rotation shaft 23 of the drive motor M and a sprocket 22 fixed to one end of the rear support shaft 20. A chain 32 is wrapped around. When the drive motor M is drive-controlled, the sprocket 24
Is rotated to control the movement of the chain 32, and the chain 31 is further interlocked to control the movement, so that the bucket 15
Is sent backwards.

Further, between the front support shaft 10 and the rear support shaft 20, disk-shaped cutters 35 are arranged at both left and right ends. The cutter 35 is connected to a drive motor (not shown), and the rotation of the cutter 35 is controlled by driving and controlling the drive motor. The long onions N conveyed one by one by the bucket 15 are cut into leaf lengths and roots by a rotating cutter 35 to have a desired length, and then peeled.

FIG. 2 is a partially cutaway side view of the peeling processing section in the apparatus shown in FIG. The stripping processing section includes a cylinder 41, a cylinder rod 42 provided on the cylinder 41, and a rodless cylinder 50. A dust collecting hood 45 is detachably attached to one end of the cylinder 41 for catching the skin and other adhered substances peeled off from the long onion N without scattering to the surroundings.

The rodless cylinder 50 is framed by left and right end plates 51 and 52 and an upper support member 56, and has both ends fixed to the plates 51 and 52. The cylinder tube 53 is parallel to the cylinder tube 53. Guide shafts 54 and 55, which are respectively disposed above and below the cylinder tube 53, and a slide portion 60.
It consists of and.

As shown in FIGS. 2 and 3, the slide portion 60 includes a slide block 61 fixed to the cylinder tube 53, a holding member 63 for holding the cylinder rod 42, a slide block 61 and a holding member 63. And a fixing member 62 for connecting. The position of the slide block 61 is moved by controlling the drive of the cylinder tube 53.

Further, as shown in FIG. 4, on the inner peripheral surface of the cylinder rod 42 on the tip side, three nozzles 43,
43, 43 are arranged rearward. From the tip of these nozzles 43, compressed air whose pressure is appropriately adjusted is jetted so that the blowing force of the compressed air blown to the onion to be peeled off is increased. Therefore, as described above, the position of the slide block 61 is moved along the root side from the leaf tip side of the long onion N, so that the position is adjusted from the leaf tip side of the long onion N along the root side. Compressed compressed air is blown from the plurality of nozzles 43, 43, 43.

As shown in FIG. 2, the support member 56 has four auto switches 71, 72, 73, which are a front end auto switch 71, a rear end auto switch 74, a low pressure blow auto switch 72 and a high pressure blow auto switch 73. 7
4 is fixed. Specifically, as will be described later, these auto switches 71, 72, 73, 74 are used for detecting the nozzle 43 to be moved and for switching the pressure of the compressed air for increasing the pressure of the compressed air.

The peeling processing section is provided with a rear end support section 80 for lifting the root side of the long onion N and a front end support section 90 for lifting and fixing the leaf tip side of the long onion N.
FIG. 5A shows the structure of the rear end support portion 80.
The configuration of the front end support portion 90 is shown in (b). Rear end support 8
Reference numeral 0 denotes a fixing member 81, a supporting shaft 82 fixed to the fixing member 81, and an elastic member 8 fixed to an upper portion of the supporting shaft 82.
3 and 3. In addition, the front end support 90 has a fixing member 91.
A supporting shaft 92 fixed to the fixing member 91, an elastic member 93 fixed to an upper portion of the supporting shaft 92, and the plate 5
1 and an elastic member 94 disposed at the lower end portion thereof. The elastic members 83, 93, 94 are elastic enough to support the meat of the long onion N without damaging it, and are made of rubber or sponge.

When the long green onion N, which has been cut as described above, is conveyed backward and the traveling of the bucket 15 is stopped, FIG.
As shown in FIG. 4, the spindles 82 and 92 are vertically driven and controlled by a driving device (not shown), so that the long onion N is lifted upward in a horizontal state. At this time, the leaf tips of the long onion N are fixed in the vertical direction by the elastic members 93 and 94. The lifted onion N is covered by the cylinder rod 42 pushed out from the cylinder 41. Specifically, as shown in FIG. 7, the elastic member 83 is tilted in the traveling direction by the tip portion of the cylinder rod 42 and inserted into the cylinder rod 42 from the root side of the long onion N. After this, as shown in FIG. 8, after the cylinder rod 42 covers the leaf tip side of the long green N, the cylinder rod 42 moves rearward, and as will be described later in detail, injection from the nozzle 43 is performed. Compressed air pressure is controlled to control long onion N
It is sprayed on and peeled off the peel and other deposits of long green N.

Next, FIG. 9 shows a schematic block configuration of a control system of the peeling processing section of the long green N. The control system of the peeling processing section receives signals from the respective auto switches of the front end auto switch 71, the rear end auto switch 74, the low pressure blow auto switch 72 and the high pressure blow auto switch 73 shown in FIG. Based on this, the position of the nozzle 43 fixed to the cylinder rod 42 is detected, and a signal for adjusting the voltage according to the output signal from the nozzle position detection unit 3 which outputs a predetermined signal and a nozzle position detection unit 3 is detected. A voltage adjusting unit 4 for outputting and an air pressure adjusting unit 5 for adjusting the pressure of the compressed air based on the voltage from the voltage adjusting unit 4 are provided. The air pressure adjusting unit 5 is provided with a blow solenoid valve (proportional control valve), and compressed air controlled through the blow solenoid valve is jetted from the nozzle 43 and blown onto the long green N.

The output signal from the nozzle position detector 3 is sent to the drive device for the cylinder tube 53 shown in FIG. In this drive device, the slide block 61 is moved and controlled by driving and controlling the cylinder tube 53 according to an input signal. As a result, the cylinder rod 42 is moved, and the position of the nozzle 43 fixedly mounted on the cylinder rod 42 is also moved.

Next, the sequence operation of the peeling process of the long onion N will be described with reference to FIGS. 2 and 10. First,
The cut onion N is conveyed to the downstream side, and when the detection switch or the like detects that the onion N has reached the lateral position of the opening of the cylinder rod 42 (step 10).
1), the drive motor M is turned off, the brake unit of the drive motor M is activated, and the traveling of the bucket 15 is stopped. Fixing member 81 of rear end supporting portion 80 and front end supporting portion 9
The fixing member 91 of 0 is controlled to move upward by a driving device (not shown), and the long onion N is lifted upward in a horizontal state. At this time, the leaf tips of the long onion N are elastic members 9
It is fixed from above and below by 3,94.

Thereafter, the cylinder tube 53 is driven and controlled, and the slide block 61 is moved to the front of the onion N, that is, to the leaf tip side. This slide block 61
The cylinder rod 42 moves from the root side of the long onion N to the leaf tip side in conjunction with the movement of the long onion N.
2 is inserted inside (step 102).

When the slide block 61 passes through the front end auto switch 71, the front end auto switch 71
Is turned on (step 103), and the signal from the front end auto switch 71 is sent to the nozzle position detector 3. The nozzle position detection unit 3 detects that the front end auto switch 71 is ON based on the sent signal, and sends a nozzle movement stop signal to the drive device for the cylinder tube 53. As a result, the drive of the cylinder tube 53 is controlled and the movement of the slide block 61 is stopped. That is, the movement of the nozzle 43 is stopped (step 104).

After that, the slide block 61 is moved to the rear side of the onion N, that is, to the root side, and the cylinder rod 4 is moved.
The nozzle 43 fixed to No. 2 is also moved backward (step 105).

When the slide block 61 passes through the low pressure blow auto switch 72, the low pressure blow auto switch 72 is turned on (step 106), and a signal from the low pressure blow auto switch 72 is sent to the nozzle position detection unit 3. The nozzle position detection unit 3 detects that the low pressure blow auto switch 72 is ON, and sends a low pressure blow processing signal to the voltage adjustment unit 4. The voltage adjusting unit 4 sends a voltage for supplying low-pressure compressed air to the air pressure adjusting unit 5, based on the sent low-pressure blow processing signal. In the air pressure adjusting unit 5, the blow solenoid valve is opened to send low-pressure compressed air to the nozzle 43, so that compressed air having a relatively low pressure is jetted from the nozzle 43. As a result, peels and adhered substances in the vicinity of the leaf tips of the long onion N are peeled off to the root side. At this time, the skin and the like in the vicinity of the leaf tips are relatively soft, so that even with compressed air having a weak pressure, the skin can be sufficiently stripped.

When the slide block 61 passes through the high pressure blow auto switch 73, the high pressure blow auto switch 73 is turned on (step 107), and a signal from the high pressure blow auto switch 73 is sent to the nozzle position detection section 3. The nozzle position detection unit 3 detects that the high-pressure blow auto switch 73 is ON, and sends a high-pressure blow processing signal to the voltage adjustment unit 4. The voltage adjusting unit 4 sends a voltage for supplying high-pressure compressed air to the air pressure adjusting unit 5 based on the sent high-pressure blow processing signal. In the air pressure adjusting unit 5, the pressure of the compressed air injected from the nozzle 43 is increased by opening the electromagnetic valve for blowing and sending the high pressure compressed air to the nozzle 43. As a result, the blowing process for peeling off the skin near the leaf side of the long onion N with the compressed air having a relatively low pressure is followed by the blowing process with the compressed air with the increased pressure, and the vicinity of the root of the long onion N. Peel off the relatively hard skin and deposits.

After that, when the slide block 61 passes the rear end auto switch 74, the rear end auto switch 74
Is turned on (step 108), and the signal from the rear end auto switch 74 is sent to the nozzle position detector 3. The nozzle position detector 3 detects that the rear end auto switch 74 is ON and sends a blow process stop signal to the voltage adjuster 4. The voltage adjusting unit 4 stops the voltage supply to the air pressure adjusting unit 5 based on the blow processing stop signal sent. As a result, the air pressure adjusting unit 5 closes the blow solenoid valve, so that the supply of compressed air to the nozzle 43 is stopped. Further, since the nozzle position detection unit 3 sends a nozzle movement stop signal to the drive device for the cylinder tube 53, the drive of the cylinder tube 53 is controlled, and the movement of the slide block 61, that is, the movement of the nozzle 43 is stopped (step). 109).

After this, the nozzle 43 fixedly mounted on the cylinder rod 42 stands by (step 110), and when the next onion N is sent to the lateral position of the cylinder rod 42, the peeling shown in steps 101 to 109 is performed. The processing is done automatically.

By presetting the above operation procedure in the sequence controller, the peeling process can be performed by adjusting the pressure of the compressed air injected from the nozzle according to the position of the nozzle with respect to the onion N. .

In the above embodiment, the pressure of the compressed air is increased in order to increase the blowing force of the compressed air blown on the onion to be peeled. However, for example, by reducing the speed of the nozzle, It is possible to increase the spraying force of the compressed air sprayed on the long green onion to be stripped. Furthermore, by adjusting both the pressure of the compressed air and the speed of the nozzle, it is possible to increase the spraying force of the compressed air sprayed on the long green onion to be peeled.

Further, the pressure of the compressed air, that is, the switching of the blowing force of the compressed air blown to the onion to be peeled is not limited to two steps, and the blow auto switch installed is increased to change the blowing force of the compressed air. It is possible to adjust in two or more steps. Further, the blowing force of the compressed air can be continuously adjusted without performing such stepwise adjustment. Further, since the installation position of the blow auto switch is variable, the switching position of the blowing force of the compressed air blown on the onion can be arbitrarily changed.

On the other hand, in the present invention, the blowing force of the compressed air is increased while the nozzle is moved, but it does not prevent the blowing force of the compressed air from being decreased during that time. That is, it is possible to adopt a mode in which the blowing force of the compressed air is temporarily reduced while the nozzle is being moved, and then the blowing force of the compressed air is increased.

Furthermore, a sensor for detecting properties such as thickness and length of the onion to be peeled is provided, the property of the onion to be stripped is detected, and the onion to be peeled is determined based on the detected property of the onion. and adjusts the blowing force of the blowing Ru compressed air.

[0036]

As described above, according to the present invention,
The nozzle that injects compressed air to the onion is moved along the root side from the leaf tip side of the onion, and the compressed air injected from the nozzle is adjusted according to the position of the compressed air sprayed on the onion. By adjusting the spraying force, the amount of compressed air sprayed on the soft tissue part of the onion leaf side is decreased, and the sprayed amount is increased on the hard root part, and You can peel long green onions efficiently without damaging them.

[Brief description of drawings]

FIG. 1 is a schematic diagram of an apparatus for cutting and peeling green onion for performing the peeling treatment on green onion according to the present invention.

FIG. 2 is a partially cutaway side view of a peeling processing section in the apparatus shown in FIG.

FIG. 3 is a perspective view of a slide portion in the peeling processing portion shown in FIG.

FIG. 4 is a vertical sectional view of a tip end portion of a cylinder rod.

5A is a configuration diagram of a rear end support portion, and FIG. 5B is a configuration diagram of a front end support portion.

FIG. 6 is a side view showing a state in which the onion is lifted in the peeling processing section shown in FIG.

FIG. 7 is a transverse cross-sectional view showing a state when the long green onion has started to be inserted into the cylinder rod in the peeling processing section shown in FIG.

FIG. 8 is a transverse cross-sectional view showing a state where blow processing is being performed in the peeling processing section shown in FIG.

FIG. 9 is a schematic block diagram of a control system of the peeling processing section shown in FIG.

FIG. 10 is a flowchart showing a sequence operation of peeling processing of long green onion.

[Explanation of symbols]

3 Nozzle position detector 4 Voltage adjustment section 5 Air pressure adjustment unit 10 Front support shaft 20 Rear support shaft 11, 21, 22, 24 sprockets 15 buckets 23 rotation axis 31, 32 chains 35 cutter 41 cylinders 42 Cylinder rod 43 nozzles 45 Dust collection hood 50 rodless cylinder 51,52 plate 53 cylinder tube 54, 55 guide shaft 56 Support member 60 Slide part 61 slide block 62 fixing member 63 holding member 80 Rear end support 90 Front end support 81, 91 fixing member 82,92 spindle 83,93,94 elastic member M drive motor

Claims (7)

(57) [Claims] 1. Cutting of green onion, which removes peels and adherents of long green onion by blowing compressed air sprayed from a nozzle onto the long green onion.
In a peeling treatment method in a peeling treatment machine, a step of transporting the leaf onion and the root on which the root is cut with a bucket, and a root end side of the transported onion, a rear end having an elastic member fixed to an upper portion thereof. Along with lifting with the support part, the leaf tip side is lifted and fixed with the front end support part where the elastic member is fixed to the upper part, and the cylinder rod is moved from the root side of the onion, and the elasticity of the rear end support part is increased. A step of inclining a member in a traveling direction of the cylinder rod by a tip end portion of the cylinder rod, inserting the onion into the cylinder rod from a root side to cover the onion, and moving the cylinder rod. The step of controlling the movement of the nozzle provided on the cylinder rod from the leaf tip side of the long onion along the root side, and while peeling the nozzle while moving the nozzle. Leek and a step of increasing the blowing force of the compressed air blown onto the, stripping processing method leek, characterized in that the. 2. The method for peeling a long onion according to claim 1, wherein the step of controlling the movement of the nozzle from the leaf tip side of the long onion along the root side, and the position of the nozzle being movement controlled. And a step of adjusting the pressure of the compressed air so that the blowing force of the compressed air sprayed on the onion to be peeled increases according to the detected position of the nozzle, and the blowing force. And a step of injecting the compressed air having an increased amount into the onion through the nozzle. 3. The method for peeling an onion according to claim 1, wherein the step of controlling the movement of the nozzle from the leaf tip side of the onion along the root side, and the position of the nozzle to be controlled for movement. And a step of adjusting the moving speed of the nozzle so that the blowing force of the compressed air blown to the onion to be peeled is increased according to the detected position of the nozzle, and the blowing force is And a step of injecting the increased compressed air into the onion through the nozzle, the method for peeling off the onion. 4. A method of stripping the onion according to claim 1, wherein the nozzle is controlled to move along the root side from the leaf tip side of the onion, and the position of the nozzle to be controlled for movement. And a step of adjusting the pressure of the compressed air and the moving speed of the nozzle according to the detected position of the nozzle so that the blowing force of the compressed air blown to the onion to be peeled increases. And a step of injecting the compressed air having the increased spraying force into the long green onions through the nozzles, the peeling treatment method for long green onions. 5. The property of the onion to be peeled off is detected, and at least one of the pressure of the compressed air and the speed of the nozzle is adjusted based on the detected property of the onion to be peeled off. The method for peeling long green onions according to any one of claims 1 to 4, characterized in that 6. The method for peeling long green onions according to claim 1, wherein the blowing force of the compressed air is increased stepwise. 7. The method for peeling long green onions according to claim 1, wherein the blowing force of the compressed air is continuously increased.