JP4887428B2 - Raw material quantitative supply apparatus and method - Google Patents

Description

  The present invention relates to a raw material quantitative supply apparatus and method, and more particularly, to a raw material quantitative supply apparatus and method for cutting and supplying a gelatinized raw material into a predetermined quantity and mass so as to have a predetermined size and mass.

  Conventionally, as a method for supplying a fixed amount of raw material, a method has been used in which a raw material kneaded by hand is divided into raw materials by a worker having a predetermined mass with a scale. However, in such manual supply of raw materials, there is a high possibility that foreign materials will be mixed into the raw materials, and defects will occur frequently during the production of the final product due to density reduction due to the inflow of air into the kneaded raw materials, resulting in mass production In some cases, the efficiency is low.

  As a method for improving the manual work as described above, a method has been developed in which a raw material is formed into a predetermined width and thickness by an extruder and then cut into a desired length using a fishing line or a line. However, this method has a problem in that the fishing line or line that is the cutting means is frequently cut, which reduces the work efficiency in mass production, and the cut fishing line or line is mixed with the gelatinized raw material. There is a problem that it may lead to defects.

  Recently, with reference to known processes used in the manufacture of confectionery, candy, ramen, etc., a method has been developed for cutting a sheeted raw material into quadrilaterals using vertical and horizontal knives. However, this method has a problem that a variation in the size of the raw material occurs due to a control error of the pitch of the horizontal knife, and a variation in the weight of the raw material occurs due to the phenomenon that the raw material is pushed by the knife.

  Accordingly, the present invention has been made to solve the above-described problems, and its object is to provide a unit raw material in which weight variation is minimized by continuously supplying a raw material having a constant pressure. Then, it is intended to provide a raw material quantitative supply device and method that are optimized for automation and mass production by blocking the contact between the supplied raw material and the outside air.

  In order to achieve the above object, an apparatus for quantitatively supplying raw materials according to an embodiment of the present invention includes a raw material providing unit that provides a gelatinized raw material, and an extruder that compresses the raw material provided from the raw material providing unit with a screw. The raw material compressed from the extruder is filled into the raw material charging port, and the raw material charged in the raw material charging port is discharged by a punching rod that reciprocates in the raw material charging port, and cut into a predetermined shape and mass. A unit quantitative cutting machine that provides unit raw materials, a transport unit that transports unit raw materials discharged from the unit quantitative cutting machine, and a mass measuring unit that measures the mass of the unit raw materials transported by the transport unit; ,including.

  The extruder includes a first extruder that includes a first screw that primarily compresses the raw material provided from the raw material providing unit, and a secondary raw material that is attached to the rear end of the first extruder. You may make it include the 2nd extruder containing the 2nd screw which pressurizes.

  In addition, the diameter of the second screw may gradually increase along the direction of travel of the raw material, and the second extruder may include an orifice at the rear stage of the second screw.

  Moreover, the 1st screw of the said 1st extruder may consist of 2 steps | paragraphs.

  In addition, a pressure control sensor may be further provided between the second extruder and the unit quantitative cutting machine.

  The unit fixed quantity cutting machine includes a rotating shaft, a rotating plate that is attached to the rotating shaft and includes a plurality of raw material inlets to which the raw material compressed by the second extruder is supplied. And a punching rod that is inserted into the raw material inlet of the rotating plate and reciprocates to discharge the raw material supplied to the raw material inlet to the lower side of the rotating plate.

  In addition, the unit fixed quantity cutting machine may further include a guide rotating plate that is mounted on the rotating shaft above the rotating plate and includes a guide hole through which the punching rod penetrates at a position corresponding to the raw material inlet. .

  In addition, the unit fixed quantity cutting machine includes an elastic member installed between a flange formed at the upper end of the punching rod and the guide rotating plate, and is positioned on the punching rod and compressed by the elastic member. You may make it further contain the height adjustment board which applies force.

  Further, the height adjusting plate includes a pressing portion projecting downward on one side, the height can be adjusted and the mass of the unit raw material can be changed, and the pressing portion can be changed when the rotating plate rotates. A reciprocating motion of the punching rod may be provided.

  The holding portion includes a descending section in which the height gradually increases in the rotation direction of the rotating plate to lower the punching rod, a holding section for keeping the maximum height of the descending section constant, and And a rising section in which the height gradually decreases with the rotation direction of the rotating plate from the holding section to raise the punching rod.

  The mass measuring unit may further include a return unit that returns the unit raw material that deviates from the set standard to the extruder when the measured unit raw material mass deviates from the set standard.

  To achieve the above object, a raw material quantitative supply method according to an embodiment of the present invention includes a step of providing a gelatinized raw material, and a step of continuously extruding the provided raw material using a screw. Measuring the pressure of the extruded raw material and changing the number of revolutions of the screw according to the pressure to control the pressure of the extruded raw material, and a plurality of the extruded raw materials are arranged. Providing the raw material charging port; discharging the raw material filled in the raw material charging port with a punching rod that reciprocates in the raw material charging port; and forming a unit raw material; and mass of the discharged unit raw material. Measuring.

  The extruding step includes a first extruding step in which the raw material is preliminarily compressed by a first screw, and a second extruding step in which the preliminarily compressed raw material is reextruded by a second screw. Also good.

  Further, the step of forming the unit raw material includes rotating a rotating plate mounted on a rotating shaft and provided with the raw material charging port around the rotating plate, and passing the punching rod that rotates together with the rotating plate through a predetermined point. It may consist of restoring the original position again after discharging the raw material filled in the raw material charging port by lowering.

  The raw material quantitative supply method may further include a step of returning the unit raw material that deviates from the set standard when the measured mass of the unit raw material deviates from the set standard.

  The raw material quantitative supply apparatus and method according to the present invention minimizes the mass standard variation of the supplied unit raw material, thereby reducing the defect rate of products manufactured from the unit raw material, and the initial process of the unit raw material through a short process line. The holding degree can be held for a long time, and the working efficiency is increased, which is advantageous for automation and mass production.

It is a figure which shows roughly the fixed_quantity | feed_rate supply apparatus of the raw material by embodiment of this invention. It is sectional drawing which shows the 1st extruder and 2nd extruder by embodiment of this invention. It is an expanded sectional view of the 2nd extruder by the embodiment of the present invention. It is sectional drawing which shows the 1st extruder and 2nd extruder by other embodiment of this invention. It is a perspective view which shows the unit fixed quantity cutting machine by embodiment of this invention. It is a perspective view which shows the unit fixed quantity cutting machine by embodiment of this invention. It is a perspective view which shows the mass measurement part by embodiment of this invention. It is a block diagram which shows the process step of the fixed quantity supply apparatus of the raw material by embodiment of this invention.

  Hereinafter, a raw material quantitative supply apparatus and method according to embodiments of the present invention will be described in detail with reference to the accompanying drawings.

  FIG. 1 is a diagram schematically showing a raw material quantitative supply apparatus according to an embodiment of the present invention.

  Referring to FIG. 1, a raw material supply apparatus 100 according to an embodiment of the present invention includes a raw material providing unit 10, a first extruder 20, a second extruder 30, a unit quantitative cutting machine 40, a transport unit 50, and a mass. A measurement unit 60 is included.

  The raw material providing unit 10 mixes the gelatinized raw material and includes a raw material storage unit 12 and a raw material mixer 14. The raw material storage unit 12 stores a composition such as starch or cereal such as fine powder, and the raw material mixer 14 supplies the composition stored in the raw material storage unit 12 and uniformly mixes with water to gelatinize. Formed raw materials.

  As the raw material mixer 14, a composition comprising a double jacket mixer in which the composition is mixed with the gelatinized raw material within a range of about 70 ° C. to 100 ° C. may be used.

  In the present invention, the gelatinized raw material means a raw material obtained by mixing a composition containing starch such as fine powder or cereal with water with a soft state.

  The first extruder 20 and the second extruder 30 are supplied with the gelatinized raw material from the raw material mixer 14 and compress the raw material at a predetermined pressure.

  The unit fixed quantity cutting machine 40 cuts the raw material compressed from the extruders 20 and 30 into a predetermined shape and mass, and discharges the unit raw material.

  The conveyance part 50 conveys the unit raw material discharged from the unit fixed quantity cutting machine 40 to one direction, and supplies this unit raw material to the other apparatus which needs it. The conveyance part 50 may be comprised from the conveyor belt. In the unit raw material transfer process as described above, the mass measuring unit 60 measures whether or not the mass of the unit raw material to be transferred is within a set range.

  FIG. 2 is a sectional view showing a first extruder and a second extruder according to an embodiment of the present invention, and FIG. 3 is an enlarged sectional view of a second extruder according to an embodiment of the present invention.

  Referring to FIG. 2, the first extruder 20 includes a first housing 21, a first screw 22 located in the first housing 21, and a first power that provides power so that the first screw 22 rotates. A motor 23 is included. The raw material is compressed by the rotation of the first screw 22 while passing through the space between the first housing 21 and the first screw 22. As the first screw 22, a conical screw, a single screw, a twin screw or the like may be used, but a conical screw is advantageous in terms of cost.

  The raw material preliminarily compressed by the first screw 22 is compressed again by the second extruder 30 connected to the rear end of the first extruder 20. Similarly to the first extruder 20, the second extruder 30 also provides the second housing 31, the second screw 32 positioned in the second housing 31, and the second screw 32 that provides power so that the second screw 32 rotates. A motor 33 is included.

  As described above, the reason why the raw material is compressed in two stages using the first extruder 20 and the second extruder 30 is that when only the second extruder 30 is used without using the first extruder 20. This is because the pressure of the raw material to be controlled by the second extruder 30 is changed abruptly, making it difficult to control the pressure of the raw material constant. That is, compressing the raw material stepwise is advantageous for the constant pressure control of the raw material.

Referring to FIG. 3, the second screw 32 of the second extruder 30 is configured to gradually increase in diameter along the raw material traveling direction (indicated by an arrow in FIG. 3). More specifically, the second screw 32 has the smallest diameter D1 of the first shaft portion 321 which is a portion into which the raw material flows, and the second shaft portion 322 which is an intermediate portion has the second smallest diameter D2 and the raw material. The diameter D3 of the third shaft portion 323, which is the portion from which the water flows out, is the largest. (D1 <D2 <D3)
Therefore, the space S1 between the first shaft portion 321 and the second housing 31 is the largest, the space S2 between the second shaft portion 322 and the second housing 31 is the next largest, and the third shaft portion 323 The space S3 between the second housing 31 is the smallest. (S1>S2> S3) The 2nd screw 32 comprised as mentioned above compresses a raw material in steps according to the number of layers.

  As the second screw 32, it is preferable to use a single screw in consideration of cost.

  The second extruder 30 includes an orifice 34 at the rear stage of the second screw 32 in order to apply a sufficient pressure to the raw material.

  A pressure control sensor 35 is provided at the rear stage of the second extruder 30, and the pressure control sensor 35 measures and controls the pressure of the raw material that is compressed from the second extruder 30. That is, the pressure control sensor 35 sends a signal to the second motor 33 to reduce the rotational speed when the pressure of the raw material flowing out from the second extruder 30 is higher than the set pressure, and the second extruder 30 When the pressure of the flowed out raw material is lower than the set pressure, a signal is sent to the second motor 33 to increase the rotational speed. The pressure of the raw material is adjusted by changing the rotational speed of the second screw 32 in accordance with the variable rotational speed of the second motor 33.

  The pressure control sensor 35 as described above can keep the pressure of the raw material constant within a predetermined pressure range (for example, 3 to 8 bar).

  FIG. 4 is a cross-sectional view showing a first extruder and a second extruder according to another embodiment of the present invention.

  Referring to FIG. 4, the first extruder 70 includes two stages and includes a horizontal extruder 72 and a vertical extruder 74. As a result, the extruder includes three stages including the second extruder 30. The number of stages is appropriately adjusted according to the ingredients of the raw material, physical properties, and the pressure of the raw material.

  5 and 6 are perspective views showing a unit quantitative cutting machine according to an embodiment of the present invention.

  Referring to FIGS. 5 and 6, the unit fixed quantity cutting machine 40 includes a rotation shaft 41, a rotation plate 42, a punching rod 43, a guide rotation plate 44, an elastic member 45, a height adjustment plate 46, and a pressing portion 47. .

  The rotating shaft 41 is connected to a motor (not shown) to provide power, and the rotating plate 42 and the guide rotating plate 44 are integrally installed on the rotating shaft 41 and rotate together when the rotating shaft 41 rotates. To do.

  The circular rotating plate 42 is provided at the lower part of the rotating shaft 41 and includes a plurality of raw material inlets 421 arranged at equal intervals along the periphery thereof. The raw material inlet 421 functions like a frame that is filled with the raw material extruded from the second extruder 30 and forms the shape of the raw material.

  The punching rod 43 is inserted into the raw material inlet 421 of the rotating plate 42 at a predetermined depth, and reciprocates by a pressing portion 47 described later.

  More specifically, the punching rod 43 is provided with a piston 431 at the lower end inserted into the raw material charging port 421, and this piston 431 moves back and forth while contacting the inner layer 422 of the raw material charging port 421. The raw material provided to the inlet 421 is discharged below the rotating plate 42. Thereby, the raw material is formed into a unit raw material having a predetermined shape and mass.

  Further, a flange portion 432 extended outward is formed at the upper end portion of the punching rod 43, and an elastic member 45 to be described later is fixed.

  A guide rotating plate 44 is installed at the intermediate portion of the punching rod 43. The guide rotating plate 44 includes a guide hole through which the punching rod 43 penetrates at a position corresponding to the raw material inlet 421. The guide rotating plate 44 has a function of guiding the linear motion of the punching rod 43 so that the reciprocating motion of the punching rod 43 is smoothly performed.

  The elastic member 45 is installed between the flange portion 432 of the punching rod 43 and the guide rotating plate 44 and applies an elastic force to the punching rod 43. The elastic member 45 may use a spring as an example.

  The height adjusting plate 46 is located at the upper end of the punching rod 43 and compresses the elastic member 45. The height adjustment plate 46 can adjust the height in the vertical direction, and the fixed height of the punching rod 43 is determined by the position of the height adjustment plate 46. Therefore, if the height adjustment plate 46 is increased, the punching rod 43 is raised by the restoring force of the elastic member 45, and the insertion depth of the punching rod 43 inserted into the raw material inlet 421 of the rotating plate 42 is small. Become. When the insertion depth of the punching rod 43 is reduced, the available space of the raw material input port through which the raw material can be supplied increases. That is, the mass of the unit raw material can be changed according to the height of the height adjusting plate 46.

  On one side of the height adjusting plate 46, a pressing portion 47 is provided that protrudes downward and provides a reciprocating motion to the punching rod 43. That is, the punching rod 43 reciprocates by the height of the pressing portion 47 when it hits the pressing portion 47 when the rotating plate 42 rotates.

  The pressing portion 47 includes a descending section 471, a holding section 472, and an ascending section 473. The lowering section 471 lowers the punching rod 43 as the height H gradually increases in the rotation direction of the rotating plate 42 (indicated by an arrow in FIG. 5). The holding section 472 holds the descending height of the punching rod 43 for a certain period of time by keeping the maximum height of the descending section 471 constant. The raising section 473 raises the punching rod 43 by gradually decreasing the height from the holding section 472 along the rotation direction of the rotating plate 42.

  In the present embodiment, the descending section 471 and the ascending section 473 are straight lines, but may be composed of curves.

  The operation of the unit quantitative cutting machine 40 will be described. When the rotating shaft 41 connected to the motor rotates, the rotating plate 42, the punching rod 43 and the guide rotating plate 44 rotate simultaneously. At this time, when the rotating punching rod 43 hits the pressing portion 47, the punching rod 43 descends by the height of the pressing portion 47 and pushes the raw material supplied to the raw material charging port 421 downward. Thereafter, when the punching rod 43 passes the pressing portion 47, the punching rod 43 returns to the original position again by the restoring force of the elastic member 45. By repeating such a process, the unit raw material is continuously discharged.

  FIG. 7 is a perspective view illustrating a mass measuring unit according to an embodiment of the present invention.

  Referring to FIG. 7, the mass measurement unit 60 includes a mass detection sensor 61 that measures the mass of the unit raw material conveyed by the conveyance unit 50. The mass detection sensor 61 measures whether or not the mass of the unit raw material is within the set reference mass range. Further, when the mass of the unit raw material is out of the set range, the mass measuring unit 60 blows off the unit raw material out of the range toward the return unit 63 using an apparatus such as the air gun 62. The return part 63 returns the unit raw material blown away to the first extruder 20 side.

  FIG. 8 is a diagram showing process steps of a raw material quantitative supply apparatus according to an embodiment of the present invention.

  Explaining the process of the raw material quantitative supply apparatus described so far, the raw material quantitative supply apparatus supplies unit raw materials by the following method.

  Referring to FIG. 8, the raw material quantitative supply method according to the present invention will be described. The composition stored in the raw material storage unit 12 is supplied to the raw material mixer 14 to form a gelatinized raw material. The converted raw material is continuously compressed while passing through the first extruder 20 and the second extruder 30. At this time, the extruding stage by the first extruder 20 may consist of two stages.

  The pressure of the compressed raw material is detected by the pressure control sensor 35. Based on the measured pressure, the pressure control sensor 35 sends a signal to the second motor 33 of the second extruder 30 to adjust the number of rotations and adjust the pressure of the raw material being compressed.

  The extruded raw material is provided to a plurality of raw material inlets 421 provided in a unit raw material cutting machine 40, and the raw material filled in the raw material inlet 421 reciprocates in the raw material inlet 421. Thus, the unit raw material is formed.

  It is measured whether or not the discharged unit raw material meets a set mass standard, and if it meets the standard, the unit raw material is supplied to an alignment device or the like, and the measured unit raw material mass deviates from the set standard. In this case, it is returned to the first extruder 20. By repeating such a process, the unit raw material is continuously supplied.

  The preferred embodiments of the present invention have been described above. However, the present invention is not limited to these embodiments, and various modifications may be made within the scope of the claims, the detailed description of the invention, and the attached drawings. Needless to say, such modifications are also within the scope of the present invention.

  The present invention provides a raw material quantitative supply apparatus and method optimized for automation and mass production.

DESCRIPTION OF SYMBOLS 10 Raw material provision part 20 1st extruder 22 1st screw 30 2nd extruder 32 2nd screw 40 Unit fixed quantity cutting machine 42 Rotating plate 43 Punching rod 44 Guide rotating plate 45 Elastic member 46 Height adjusting plate 47 Pressing part 50 Conveying unit 60 Mass measuring unit 100 Raw material quantitative supply device

Claims (17)

A raw material providing unit for providing gelatinized raw materials;
An extruder for compressing the raw material provided from the raw material providing unit with a screw;
A unit filled with a raw material input port compressed from the extruder and discharged into a predetermined shape and mass by discharging the raw material charged in the raw material input port by a punching rod that reciprocates in the raw material input port A unit quantitative cutting machine that provides raw materials;
A transport unit for transporting the unit raw material discharged from the unit quantitative cutting machine;
A mass measuring unit for measuring the mass of the unit raw material conveyed by the conveying unit;
A raw material supply device including The extruder is
A first extruder including a first screw that primarily compresses the raw material provided from the raw material providing unit; and a second screw that is attached to a rear end of the first extruder and secondarily pressurizes the raw material. Including a second extruder,
The raw material fixed-quantity supply apparatus of Claim 1 containing this.   3. The raw material quantitative supply device according to claim 2, wherein a diameter of the second screw gradually increases along a traveling direction of the raw material.   The raw material quantitative supply apparatus according to claim 2, wherein the second extruder includes an orifice at a rear stage portion of the second screw.   The raw material quantitative supply device according to claim 2, wherein the first screw of the first extruder has two stages.   The raw material quantitative supply apparatus according to claim 2, further comprising a pressure control sensor between the second extruder and the unit quantitative cutter. The unit quantitative cutting machine is:
A rotation axis;
A rotating plate equipped with the rotating shaft and provided with a plurality of raw material charging ports to which the raw material compressed by the second extruder is supplied along the periphery,
A punching rod that is inserted into the raw material charging port of the rotating plate and reciprocates and discharges the raw material supplied to the raw material charging port below the rotating plate;
The raw material fixed-quantity supply apparatus of Claim 2 containing this. The unit quantitative cutting machine is:
8. The raw material quantitative supply device according to claim 7, further comprising a guide rotary plate mounted on the rotary shaft at the upper part of the rotary plate and provided with a guide hole through which the punching rod passes at a position corresponding to the raw material charging port. The unit quantitative cutting machine is:
An elastic member installed between a flange portion formed on an upper end portion of the punching rod and the guide rotating plate; and a height adjusting plate which is located on the punching rod and applies a compressive force to the elastic member;
The raw material fixed-quantity supply apparatus of Claim 8 containing this.   10. The raw material quantitative supply device according to claim 9, wherein the height adjusting plate includes a pressing portion protruding downward on one side, and the mass of the unit raw material can be changed by adjusting the height.   The raw material quantitative supply device according to claim 10, wherein the pressing portion provides a reciprocating motion of the punching rod when the rotating plate rotates. The pressing portion is
A descending section in which the punching rod is lowered by gradually increasing the height in the rotation direction of the rotating plate;
A holding section that keeps the maximum height of the descending section constant;
A rising section in which the height gradually decreases from the holding section with the rotation direction of the rotating plate to raise the punching rod;
The quantitative supply apparatus of the raw material of Claim 11 containing this.   The raw material according to claim 1, wherein the mass measuring unit further includes a return unit that returns the unit raw material that deviates from the set standard to the extruder when the measured mass of the unit raw material deviates from the set standard. Metering device. Providing a gelatinized raw material;
Continuously extruding the provided raw material using a screw;
Measuring the pressure of the extruded material and changing the number of revolutions of the screw according to the pressure to control the pressure of the extruded material;
Providing the extruded raw material to a plurality of arranged raw material inlets;
Discharging the raw material charged in the raw material inlet by a punching rod that reciprocates in the raw material inlet to form a unit raw material;
Measuring the mass of the discharged unit raw material;
A method for quantitatively supplying raw materials including The extruding step includes
The quantitative feed of the raw material according to claim 14, comprising a first extrusion stage in which the raw material is preliminarily compressed by a first screw, and a second extrusion stage in which the preliminarily compressed raw material is extruded again by a second screw. Method. The step of forming the unit raw material includes
The raw material charging port is filled by rotating a rotating plate that is mounted on a rotating shaft and provided with the raw material charging port around the rotating plate, and lowering the punching rod that rotates together with the rotating plate when passing through a predetermined point. The raw material quantitative supply method according to claim 15, wherein the raw material is discharged and then restored to the original position again.   The raw material quantitative supply method according to claim 16, further comprising a step of returning the unit raw material that deviates from the set standard when the measured mass of the unit raw material deviates from the set standard.

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