JPS5837824B2 - Measuring and extrusion equipment for linear foods - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a metering and extruding device for linear foods such as spaghetti, macaroni, rice noodles, rusame, etc., and in particular, a piston is installed at the rear end of a cylinder with a die attached to the tip. , by extruding the dough fed into the cylinder while metering it with the extrusion stroke of the piston,
Shaping and weighing linear food products are performed at the same time.

Conventionally, this type of linear food has been formed by simply extruding the material from a die using an extruder.

Therefore, when heat treating or other treatments are applied to produce a product, separate weighing work is required. Conventionally, people were assigned to the production line to manually weigh each product. It was sent to processes such as heat treatment.

However, according to the conventional method, not only the manufacturing cost increases because the measurement is done manually, but also the manufacturing efficiency is not good.Furthermore, there are disadvantages in terms of food hygiene. In some cases, the compressive force was not always sufficient, resulting in air bubbles being mixed into the product and resulting in poor quality products.

Therefore, the present invention aims to eliminate all of these conventional drawbacks, and its purpose is to simultaneously extrude and measure the material, and its purpose is to improve the accuracy of said measurement. Moreover, the purpose is to reduce the amount of air contained in the material as much as possible.

That is, this application discloses a first extruder 6 in which a screw shaft 4 connected to a rotational drive source 3 is built into a first sill 2 having an extrusion port 1 at the tip thereof, and a material receiving port 5 is provided at an appropriate location. and the second one with die 7 attached to the tip.
A piston 10 connected to a forward/backward drive source 9 is slidably installed at the rear end of the cylinder 8, and an on-off valve 11 is installed in the middle of the second cylinder 8, and further between the piston 10 and the on-off valve 11. and a second extruder 12 in which the extrusion port 1 of the first extruder 6 is connected, and the forward and backward drive source 9 is controlled so that the extrusion stroke due to the forward movement of the piston 10 always maintains a set distance. , the piston 10 is retractable when the screw shaft rotates 40 times, and the on-off valve 1
1 is closed, and when the screw shaft 4 is stopped, the on-off valve 1 is closed.
1 is opened and the piston 10 is pushed forward by the forward movement drive source 9 and the on-off valve 11.
A linear food measuring and extruding device characterized in that the driving source 14 is connected to the rotary driving source 3 is defined as a specific invention, and as a combined invention, a first device having an extrusion port 1 at the tip thereof is defined as a specified invention.
The cylinder 2 has a built-in screw shaft 4 connected to a rotational drive source 3, and a first extruder 6 with a material receiving port 5 at an appropriate location, and a second cylinder 8 with a die 7 attached to its tip. A piston 10 connected to a forward/backward drive source 9 is slidably installed at the end, and a second cylinder 8
An on-off valve 11 is installed in the middle of the piston 10, and an extrusion port 1 of the first extrusion me' is connected between the piston 10 and the on-off valve 11. 1 is eccentrically opened in a part of the inner end surface 15 of the first cylinder 2, and the distal end surface 16 of the screw shaft 4 is brought into sliding contact with the inner end surface 15 of the extrusion port 1, so that the extrusion port is opened by 40 rotations of the screw shaft. Furthermore, the forward/backward drive source 9 is controlled so that the extrusion stroke due to the forward movement of the piston 10 always maintains a set distance, and when the screw shaft 4 rotates, the piston 10
is retractable, the on-off valve 11 is closed, and when the screw shaft 4 is stopped, the on-off valve 11 is opened, the piston 10 is pushed forward, and the screw shaft 4 is controlled to close the extrusion port 1. To provide a metering and extruding device for a linear food product, which is characterized in that a drive source 9, a drive source 14 for an on-off valve 11, and a rotary drive source 3 are connected.

Next, the present invention will be explained according to illustrated embodiments.

First, to explain the configuration, 6 is a first extruder, which has a screw shaft 4 built into a first cylinder 2 having an extrusion port 1 at the tip, and a material receiving port 5 at the rear end. , a hosopa 1γ is installed in the material receiving port 5.

The rear end protrusion of the screw shaft 4 is provided with bearings 18 and 19 that cantilever the screw shaft 4, a chain sprocket 20, and a cam 21.

The chain sprocket 20 is connected to the rotational drive source 3 via a chain 22 and a reduction gear 23.

As the rotational drive source 3, a motor equipped with a clutch and a brake is used here.

The cam 21 has a disc shape and has a concave portion at one location on its circumference, and a limit switch L is located on the circumference including this concave portion.
SI is in contact.

A small gap is formed between the first cylinder 2 and the outer periphery of the screw shaft 4, so that the air contained in the material compression can be vented toward the material receiving port 5.

In addition, since the diameter of the first cylinder 2 on the extrusion port 1 side is smaller, the gap becomes smaller sequentially at the extrusion port 1, and the material compression force at the extrusion port 1 is smaller than that at the receiving port 51all. It has become.

The extrusion port 1 of the first cylinder 2 is opened in a part of the inner end surface 15 of the first cylinder 2 at a position eccentric to the inner end surface 15, and more specifically, in the upper half of the inner end surface 15. The opening is in the shape of a sector with an obtuse angle cross section.

On the other hand, the distal end surface 16 of the screw shaft 4 has a semicircular shape and is in sliding contact with the inner end surface, so that the extrusion port 1 is opened and closed by 40 rotations of the screw shaft.

The positional relationship between the cam 21 and the limit switch LSI is set so that the extrusion port 1 is closed when the screw shaft 4 is stopped.

12 is a second extruder, which has a piston 10 slidably installed at the rear end of a second cylinder 8 with a die 7 attached to its tip, and an on-off valve in the middle of the second cylinder 8. 1
1 is installed, and a first extruder ?1 is installed between the piston 10 and the on-off valve 11. The extrusion ports 1 are continuous.

The first cylinder 2 of the first extruder 6 and the second cylinder of the second extruder 12
Although it intersects with the cylinder 8 at a right angle, it does not necessarily have to be at a right angle.

The piston 10 is connected to a forward/backward drive source 9.

The forward/backward drive source 9 is a cylinder device here, and a piston 10 is fixed to the tip of a piston rod 24 thereof.

The piston rod 24 is provided with a gauge 25 along its axial direction, which is graduated with slits.
A flange 26 is fixed.

A sensor 27 faces the gauge 25, and the piston rod 2
It is detected by the advance and retreat of 4 and the number of scale marks passing through the distance.

The sensor 27 is connected to a counter 28 to count the number of scale marks read by the sensor 27.

Additionally, the locus of the flange 26 includes a limit switch LS.
2, LS 3 is coming.

The limit switch LS2 is such that when the piston 10 reaches the retraction limit, the flange 26
The flange 26 of the limit switch LS3 is in contact with the limit switch LS3 when the piston 10 reaches its forward limit.

Further, the cylinder device serving as the forward/backward drive source 9 has a front chamber open and only a rear chamber connected to the pressure source via an electromagnetic switching valve 29.

The on-off valve 11 is made of a cylindrical body, is rotatably attached to the second cylinder 8, and is penetrated by a hole 30 having the same diameter as the inner diameter of the second cylinder 8, so that the on-off valve 11 can be rotated 90 degrees. Opens and closes the front and back.

A lever 31 is fixed to the on-off valve 11 and is connected to a drive source 14.

The drive source 14 consists of a cylinder device, and an electromagnetic switching valve 32 is interposed between it and the pressure source.

A cutter 33 faces the surface of the die 7 and cuts the material extruded from the die 7.

The cutter 33 is fixed to a piston rod 35 of a cylinder device serving as a forward/backward drive source 34, and the forward/backward drive source 34 is connected to a pressure source via an electromagnetic switching valve 36.

each solenoid of electromagnetic switching valves 29, 32, 340 connected to the forward/backward driving sources 14, 29, 34;
Are the limit switches LSI, LS2, LS3, the rotational drive source 3, and the counter 28 in the control circuit 13? tied together.

During preliminary operation of the device, this control circuit 13 (1) enables the operation of the limit switch LSI by operating the limit switch LS 2 (2)
Open the on-off valve 11 (3) Issue a command to move the piston 10 forward (downward), issue a command to stop the screw shaft 4 by operating the limit switch LSI, and operate the limit switch LS3, (1) (2) Close the on-off valve 11 (3) Operate the cutter 33 (4) Issue a command to start the screw shaft 4. It is configured to do this.

Further, during the main operation of the device, the control circuit 13 controls the limit switch LS when the predetermined addition of the counter 28 is completed.
A command is issued to enable the operation of counter 28.
Upon completion of the predetermined subtraction, (1) closes the on-off valve 11, (2) activates the cutter 35, (3) sets the counter 28 to addition, (4) issues a command to rotate the screw shaft 4, and then closes the limit switch. Through its operation, the LSI (1) stops the screw shaft 40 rotations (
2) The counter 28 is subtracted. (3) The piston 10 is advanced and lowered. (4) The on-off valve 11 is opened.

Next, the operation of this device will be explained.

First, do a preliminary run.

This supplies the primarily mixed material into the hopper 17 and rotates the screw shaft 4.

At this time, the piston 10 is moved back to a position in front of the limit switch L82, and the on-off valve 11 is closed.

There, the material is fed into the first cylinder 2 via the hopper 17 and the material receiving port 5.

Then, the material is pressed and moved in one direction of the extrusion port by the screw shaft 4.

At this time, the material is compressed between the screw shaft 4 and the first cylinder 2.

In this compression, the diameter of the first cylinder 2 is gradually reduced to the diameter of the extrusion port 1, and the extrusion port 1 is a screwdriver. Shaft 4
This is because the front end surface 16 of the front end face 16 repeatedly opens and closes.

That is, the diameter of the first cylinder 2 is reduced as described above, and the extrusion port 1 is opened during one half rotation of the semicircular front end surface 16, and the extrusion port 1 is opened during the remaining half rotation. This is because the material is sequentially moved toward the extrusion port 1 by the screw shaft 4 even during this closed state.

By this compression, the density of the material becomes uniform, and the air contained therein is degassed and released from the gap between the screw shaft 4 and the first cylinder 2 toward the material receiving port 5.

The material thus compressed is fed through the extrusion port 1 into the second cylinder 8 and falls onto the die 7 .

Then, when the materials are sequentially supplied and the second cylinder 8 is filled with the materials, the materials push up the piston 10 and actuate the limit switch LS2.

The operation of the limit switch LS2 enables the operation of the limit switch LSI.

Therefore, if the cam 21 continues to rotate at an angle of less than 360 degrees and the limit switch LSI falls into the recess,
The limit switch LSI is activated, the rotational drive source 3 is stopped, and the screw shaft 4 is stopped.

At this time, the tip end surface 16 of the screw shaft 4 closes the extrusion port 1.

In addition, due to the operation of the limit switch LS2, the electromagnetic switching valve 29 is switched, the advance/retreat drive source 9 is operated, and the piston 10 moves forward.

As a result, the material in the second cylinder 8 is pressed and extruded from the die 7.

At this time, the extrusion port 1 is located at the front end surface 16 of the screw shaft 4.
Since the first cylinder 2 is closed, the material does not return into the first cylinder 2.

The material extruded by the die 7 cannot be turned into a product at this stage because air is mixed in the second cylinder 8.

When the piston 10 descends and the flange 26 contacts the limit switch LS3, this is activated and the electromagnetic switching valve 29
By switching the forward and backward drive source 9, the forward movement of the piston 10 is stopped.

At this time, since the rear chamber of the electromagnetic switching valve 29 is open and the front chamber is always open, the piston 10 is in a free state.

In addition, due to the operation of the switch LS3, the electromagnetic switching valve 32 is switched and the forward/backward drive source 14 is activated.
Close 1.

At the same time, the electromagnetic switching valve 36 is switched, the advance/retreat drive source 34 is activated, the canter 33 moves once, and the die 7? Cut the material that is being extruded.

In addition, the rotational drive source 3 rotates the screw shaft 4 via the reducer 23, the chain 22, and the chain sprocket 20, so that the material is delivered to the extrusion port 1 within the first cylinder 2.
It is compressed and moved in the above-mentioned direction, and is supplied from the extrusion port 1 into the second cylinder 8.

Due to this material supply into the second cylinder 8, the pressure inside the second cylinder 8 increases and the piston 1 becomes free.
Push 0 up and back.

When the 7 langes 26 contact the limit switch LS2 due to the retraction of the piston 10, this is actuated and enables the actuation of the limit switch LSI as described above. stop the rotation.

Further, while opening the on-off valve 11, the piston 10 is moved forward to extrude the material in the second cylinder 8 from the die 7.

In preliminary operation, limit switches LSI, LS2, LS
The above action is repeated several times by the action in step 3.

As a result, the material in the second cylinder 8 is also sufficiently compressed to have a uniform density and is also degassed.

Thus, at the end of the preliminary operation, the first and second cylinders 2, 8 are filled with compressed material.

After the preliminary operation, the main operation is performed. First, the screw shaft 4 is rotated several times to feed the material into the second cylinder 8, thereby causing the piston 10 to be slightly retracted from its forward limit.

This is the starting position of the piston 10.

Then, the counter 28 is preset to a value corresponding to the forward distance of the piston 10, that is, the material extrusion distance from the second cylinder 8, for example "10", and the sensor 21 is made to detect the position of the gauge 25 at this time. is the numerical value rOJ and set it at the addition position.

Then, the screw shaft 4 is rotated.

Due to the 40 rotations of the screw shaft, the material is compressed in the first cylinder 2 and fed from the extrusion port 1 into the second cylinder 8.

This increases the amount of material in the second cylinder 8, so
Piston 10 retreats.

At this time, since the gauge 25 retreats together with the piston 10, the sensor 27 detects the amount passing through the scale, and the counter 28 counts.

The counter 28 starts from the above-mentioned "0" and adds the amount passing through the scale in the order of "1", "2", "3", etc. until it reaches the preset value "10".

Therefore, the piston 10 will now be retracted by a distance corresponding to the numerical value "10".

Then, when the counter 28 counts the numerical value "10", the control circuit is activated to put the limit switch LSI into an operable state.

If the limit switch LSI has fallen into the recess of the cam 21 at this time, it will operate immediately, but if it has not fallen, it will not operate yet and the screw shaft 4
continues to rotate.

Then, when the screw shaft 40 rotates within an angle of less than 360 degrees, the recess of the cam 21 reaches the limit switch LSI, which falls into the recess and the limit switch LSI is activated.

When the screw shaft 4 rotates after the counter 28 counts the number "10" and until the limit switch LSI is activated, the material is continuously supplied to the second cylinder 8, so the piston 10 retreats. Then, the counter 28 further adds to the numerical value "10" to obtain, for example, the numerical value "10".
Count 12.

Thus, at this stage, the screw shaft 4 is stopped by the operation of the limit switch LSI, and the front end surface 1 of the screw shaft 4 is stopped.
6 is in a state where the extrusion port 1 is closed, and the counter 28 is counting the number "12".

Then, by operating the limit switch LSI, the counter 28 is set to subtraction, the on-off valve 11 is opened, and the piston 10 is moved forward.

As the piston 10 moves forward, the material in the cylinder 8 is also extruded through the die 7 and formed.

As the piston 10 moves forward, the gauge 25 also moves forward, and the sensor 27 detects the amount passing through the scale, and the counter 2
8 subtracts.

That is, in the above example, the numerical value "12" is sequentially changed to "11".
”, “10”, “9”, etc. until the number is subtracted by the preset value 1 1 0J.
That is, the preset value "10" is subtracted from the numerical value "112" counted at the time of addition until the numerical value "2" is obtained, and the subtraction ends when the numerical value "2" is reached.

Therefore, the amount of material pushed out from the die 7 by the advance of the piston 10 is equivalent to the preset value "10".

When the subtraction of the counter 28 is completed, the control circuit 13 is activated by the command from the counter 28, the on-off valve 11 is closed, the cutter 35 is operated once, and the predetermined number, thickness, and length of the extruded product from the die γ are extruded. Cut the linear material.

Further, the counter 28 is set to addition, and the screw shaft 4 rotates to supply material from the first cylinder 2 to the second cylinder 8.

The above operation is thus repeated. At this time, the piston 10 moves backward as described above, but the counter 28 starts addition from the value "2" at the end of the previous subtraction, "3",
Count "4", "5", etc.

Then, when the numerical value reaches "10", the limit switch LSI is activated in the same manner as described above, and the addition is continued until the limit switch LSI falls into the recess of the cam 21 and the screw shaft 4 stops.

Therefore, the value added by the counter 28 will be a value of "10" or more, but the value that causes "10" is proportional to the amount that the screw shaft 4 extrudes with less than one rotation, so it is not a too large value. Must not be.

Since the amount of material extruded by the piston 10 is exactly the amount corresponding to the numerical value "10" as determined by the counter 28, the same amount is always extruded by the die 7 as well.

By adjusting the amount of extrusion from the dies 7 by adjusting a numerical value preset in the counter 28, the adjusted amount of material is repeatedly extruded from the dies.

As is clear from the above, according to the present invention, the material extrusion stroke due to the forward movement of the piston is always constant regardless of the material receiving stroke distance due to the retraction of the piston, so the amount of material extruded from the die is always constant. The same amount.

Therefore, according to the present invention, since the material is weighed at the same time as extrusion, there is no need to weigh the material after extrusion, and the material can be directly supplied to the next process such as heat treatment.

Further, according to the present invention, the extrusion port for extruding the material from the first cylinder to the second cylinder is sometimes opened and sometimes closed during one rotation of the screw shaft.
Since the material can be strongly compressed within the cylinder, the density of the material can be made uniform and the gas can be effectively degassed.

Therefore, the quality of the material is improved, and since the extrusion port of the first cylinder is closed when the piston extrudes the material, the material in the second cylinder does not enter the first cylinder.

Therefore, the accuracy of the amount of material extruded by the viston is further ensured.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view showing an embodiment of the present invention. In the figure, 1 is an extrusion port, 2 is a first cylinder, 3 is a rotational drive source, 4 is a screw shaft, 5 is a material receiving port, 6 is a first extruder, 7 is a die, 8 is a second cylinder, 9 10 is a forward/backward drive source, 10 is a piston, 11 is an on-off valve, 12 is a second extruder, 13 is a control circuit, 14 is a drive source for the on-off valve, 15 is an inner end surface, and 16 is a tip end surface.

Claims (1)

[Claims] 1. A first cylinder having an extrusion port at its tip has a built-in screw shaft connected to a rotational drive source, and
A first extruder is provided with a material receiving port at an appropriate location, and a piston connected to a reciprocating drive source is slidably installed at the rear end of a second cylinder with a die attached to the tip, and a piston is slidably installed in the middle of the second cylinder. A second extruder is provided with an on-off valve in the first part, and an extrusion port of the first extruder is connected between the piston and the on-off valve.
The extruder controls the forward and backward drive source so that the extrusion stroke caused by the forward movement of the piston always maintains a set distance, and when the screw shaft rotates, the piston can move back and the on-off valve closes, stopping the screw shaft. Measuring and extrusion of linear food products, characterized in that a control circuit for controlling the on-off valve to open at times and the piston to push forward is connected to the advance/retreat drive source, the on-off valve drive source, and the rotational drive source. Device. 2. A first cylinder having an extrusion port at the tip has a built-in screw shaft connected to a rotational drive source, and
A first extruder is provided with a material receiving port at a suitable location, and a piston connected to a forward/backward drive source is slidably installed at the rear end of a second cylinder with a die attached to the tip, and a piston is slidably installed in the middle of the second cylinder. A second extruder is constructed by installing an on-off valve in the first extruder and connecting the extrusion port of the first extruder between the piston and the on-off valve.
The extruder has an extrusion port that is eccentrically opened in a part of the inner end surface of the first cylinder, and the tip surface of the screw shaft is brought into sliding contact with the inner end surface of the extrusion port, so that the extrusion port is opened eccentrically in a part of the inner end surface of the first cylinder, and the tip surface of the screw shaft is brought into sliding contact with the inner end surface of the extrusion port. The extrusion port is configured to open and close, and furthermore, the forward and backward drive source is controlled so that the extrusion stroke caused by the forward movement of the piston always maintains a set distance, and when the screw shaft rotates, the piston can move back and the opening/closing valve closes. When the screw shaft is stopped, the on-off valve opens, the piston is pushed forward, and the screw shaft closes the extrusion port. A metering extrusion device for linear foods, characterized in that