JP4322583B2 - Granule weighing device, packaging device, and manufacturing method of package - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a granular material measuring device, a packaging device, and a method for manufacturing a package. In particular, the present invention relates to a weighing device that measures granular materials having different volumes with a single weighing rod, a packaging device that packages the granular material measured by the weighing device, and a packaging method that packages the granular material using the packaging device.
[0002]
[Prior art]
In order to measure granular materials represented by powders and granular chemicals, a method of measuring with a measuring rod has been conventionally used. As shown in FIG. 4, the measuring rod 1 is a stainless steel rectangular parallelepiped having a space having a volume of granular material to be weighed. Similarly, a stainless steel holder 2 is installed on the top of the measuring rod 1, and the holder 2 is provided with a through hole connected to the space of the measuring rod 1. When the granular material is poured from the through hole and the through hole of the holder 2 is in communication with the space of the measuring rod 1, the space of the measuring rod 1 is filled with the granular material.
[0003]
A shutter 4 is installed under the measuring rod 1. The shutter 4 also has a through hole communicating with the space of the measuring rod 1. When the space of the measuring rod 1 and the through hole of the shutter 4 communicate with each other, the granular material filled in the space of the measuring rod 1 falls through the through hole of the shutter 4. Therefore, the measuring rod 1 reciprocates horizontally, the space of the measuring rod 1 communicates with the through hole of the holder 2 and the space of the measuring rod 1 is filled with the particulate matter, and the space of the measuring rod 1 The process of dropping the particulate matter filling the space in communication with the through hole of the shutter 4 is repeated.
[0004]
However, if the bulk density of the granular material changes when the weight is specified for packaging, the above-described measuring device using the measuring rod that measures by volume cannot measure the granular material with the correct weight. Therefore, a weighing basket having a space with a different volume is prepared in advance, and the weighing basket is replaced according to a change in the bulk density, and is weighed.
[0005]
[Patent Literature]
None
[0006]
[Problems to be solved by the invention]
However, it is inefficient to replace the weighing rod every time the bulk density of the granular material changes, and since the weighing rod is precisely processed, a large number are prepared to cope with the change in the bulk density. This was not economically favorable. Then, this invention is providing the measuring device which can measure the granular material from which a volume differs with one measuring rod. Moreover, it is providing the packaging apparatus of the granular material provided with the measuring device.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, the weighing device 20 according to the invention described in claim 1 includes a first plane 21d and a second plane 21e parallel to the first plane 21d as shown in FIG. And a space 21a into which the granular material is fed from the first plane 21d side is formed so as to penetrate between the first plane 21d and the second plane 21e, and has a protrusion 26a that enters and exits the space 21a. A measuring rod 21; located on the first plane 21d side, formed with a through hole 22a communicating with the space 21a, and a holder 22 that slides on the first plane 21d; located on the second plane 21e side In addition, a through hole 24a communicating with the space 21a is formed, and a second flat surface 21e and a shutter 24 that slides are provided.
[0008]
If comprised in this way, since the volume of the space of a measuring rod changes by entering / exiting a projection part, the volume which should be measured with one measuring rod can be changed. The flat surface only needs to be flat enough to slide relative to each other as described above, and the parallelism between the first plane and the second plane of the weighing rod is not strictly parallel. The parallelism that can move while sliding on the plane of the shutter.
[0009]
  further, Claims1In the weighing device 20 according to the invention described in FIG. 1, for example, as shown in FIG.The granular material fed into the space 21a is a substance having an angle of repose that wraps around the lower side of the protrusion 26a without a gap;The protrusion 26a is a rod 26 penetrating a surface other than the first flat surface 21d and the second flat surface 21e among the surfaces forming the space 21a.The depth of entering and exiting the space 21a is adjusted by rotating around the axis.It is configured.
[0010]
  If comprised in this way, the entrance / exit of a projection part can be adjusted from the outer side of a measuring rod.
Further, like the weighing device according to the invention described in claim 2, the weighing device according to claim 1 may be configured to have a plurality of the rods having different thicknesses.
[0011]
In order to achieve the above object, the granular material wrapping device according to the third aspect of the present invention includes, for example, as shown in FIG. 3, the weighing device 20 according to the first or second aspect; and the weighing device 20. A filling device 31 that fills the tube 90 with the particulate matter weighed in; and a sealing device 40 that transversely seals the tube 90 filled with the particulate matter; The cutting device 60 is provided.
[0012]
If comprised in this way, the packaging apparatus provided with the weighing | measuring apparatus of the granular material which can change the volume which should be measured with one measuring bowl is provided.
[0013]
In order to achieve the above object, a manufacturing method of a package according to a fourth aspect of the present invention includes a step of supplying the granular material to the granular material packaging apparatus according to the third aspect; And a step of taking out the package.
[0014]
If comprised in this way, a granular material will be supplied to the packaging apparatus provided with the measuring device of the granular material which can change the volume which should be measured with one measuring bowl, and a granular material will be packaged by this packaging apparatus, and this packaging Since the package packaged by the apparatus is taken out, a packaging method suitable for manufacturing a package including a granular material having a variable volume is provided.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings. In each figure, the same or equivalent devices are denoted by the same reference numerals, and redundant description is omitted.
[0016]
First, with reference to the cross-sectional view of FIG. 1, a spherical adsorbent charcoal weighing device according to the first embodiment of the present invention will be described. The measuring rod 21 is a metal rectangular parallelepiped, and a space 21a corresponding to the volume of the spherical adsorbed coal to be measured opens in two parallel planes 21d and 21e facing each other. The measuring bowl 21 is installed so that the space 21a opens in the vertical direction with the flat surface 21d facing up. The space 21a has a cylindrical shape because it is easy to manufacture and is preferable. However, the space 21a may have another shape. In addition, the measuring bowl 21 may have a disk shape, an elliptical plate shape, or other shapes as long as it has two parallel planes 21d and 21e with open spaces. The measuring rod 21 is preferably made of stainless steel because it is less susceptible to damage by spherical adsorbent charcoal, but may be made of other metals, or may be made of a hard material such as engineering plastic instead of metal. Even so, it may have hardness and lightness. Since the upper surface 21d and the lower surface 21e of the measuring rod 21 slide with the holder 22 and the shutter 24, respectively, it is preferable to be formed of wear-resistant materials 21b and 21c. Here, sliding includes not only the case where the surfaces rub against each other, but also the case where the surfaces move relatively while maintaining a slight gap between the two surfaces.
[0017]
A through hole 21f is provided in the horizontal direction from the space 21a. A rod 26 is inserted into the through hole 21f from the outside of the measuring rod. The distal end portion 26a of the rod 26 protrudes into the space 21a. A screw head is provided at the outer end of the rod 26, and the screw is cut at a portion excluding the tip 26a. A screw is also cut in the portion closer to the outside of the through hole 21f and meshes with the rod screw. By rotating the screw head, the insertion depth of the rod 26 is adjusted. That is, the distal end portion 26a enters and exits the space 21a. The insertion depth may be adjusted by attaching a nut to the outside of the through hole 21f and combining it with the screw of the rod 26 without being threaded into the through hole 21f. Alternatively, the insertion depth of the rod 26 may be adjusted by another mechanism.
[0018]
Alternatively, instead of inserting the rod 26 into the through hole 21f, for example, a short rod may be inserted into a recess provided in the side wall of the space 21a, and a protrusion whose head protrudes into the space 21f may be provided. . In this case, since the height of the protrusion cannot be adjusted from the outside, the adjustment of the volume of the space, that is, the adjustment of the height of the protrusion, is performed by removing the measuring rod 21 from the measuring device. It is possible to weigh spherical adsorbed charcoal with different bulk densities with the above measuring rod.
[0019]
The rod 26 is made of metal, but the portion protruding into the space 21a of the tip end portion 26a is preferably made of a wear-resistant material typified by ceramics in order to reduce wear due to spherical adsorbed charcoal. Further, the whole rod 26 may be made of ceramics, or the portion other than the tip may be made of plastic.
[0020]
Near the opening of the through hole 21f to the space 21a, the tip end portion 26a of the rod 26 and the through hole 21f are fitted tightly with almost no gap. This is because the spherical adsorbed charcoal or fine powder produced when the spherical adsorbed charcoal is worn out does not enter between the through hole 21f and the rod 26.
[0021]
As shown in the X direction arrow view of FIG. 1, the measuring rod 21 is installed so as to be movable in the horizontal direction by a wheel 25a attached to the measuring rod and a fixed rail 25b, and is moved by an actuator (not shown). And reciprocates in the horizontal direction. Other methods such as a linear guide and a linear bearing may be used as a support method that enables horizontal movement.
[0022]
A holder 22 is installed in contact with the upper surface 21 d of the measuring bowl 21. The holder 22 is a rectangular parallelepiped made of acetal resin or polyether ether ketone. Even a material other than an acetal resin or polyether ether ketone can be suitably used if it is formed of a material having hardness, wear resistance and a low friction coefficient. Or you may form with metals, such as stainless steel. Moreover, even if it is not a rectangular parallelepiped, it should just have the plane which touches the measuring rod 21. FIG. The holder 22 is formed with a through hole 22 a penetrating from the surface in contact with the measuring rod 21 to the upper surface. The through hole 22a preferably has the same shape as the space 21a of the measuring rod 21, but it does not have to be the same shape.
[0023]
The holder 22 is restrained from moving in the horizontal direction by a guide (not shown) and is held so as not to be inclined. The holder 22 is pushed downward by a spring (not shown) from the upper surface. Is in contact with the measuring rod so as to press the upper surface 21d.
[0024]
A shutter 24 is installed under the measuring rod 21 with a slight clearance d. The shutter 24 is a metal rectangular parallelepiped whose upper surface is a plane parallel to the lower surface 21 e of the measuring bowl 21. The shutter 24 is preferably formed of stainless steel, but may be formed of another metal or a material having hardness such as engineering plastic. Further, the shutter 24 may not be a rectangular parallelepiped as long as the upper surface thereof is a plane parallel to the lower surface 21e of the measuring bowl 21. The shutter 24 is formed with a through hole 24 a penetrating from the surface in contact with the measuring rod 21 to the lower surface. The through hole 24a preferably has the same cross section as the space 21a of the measuring rod 21, but may not have the same shape as long as it is larger than the space 21a.
[0025]
Next, the operation of the weighing device will be described with reference to the cross-sectional view of FIG. As shown in FIG. 2 (a), when the measuring rod 21 is in a position where the space 21a and the through hole 22a communicate with each other, the spherical adsorbed charcoal is discharged from the filling nozzle 16 having the tip on or in the through hole 22a. Be dropped. The spherical adsorbed charcoal passes through the through hole 22a and enters the space 21a of the measuring rod 21. The lower opening of the space 21a is closed by the upper surface of the shutter 24, and spherical adsorbed charcoal accumulates in the space 21a. More spherical adsorbed charcoal filling the space 21a falls from the filling nozzle 16, and the portion overflowing from the space 21a accumulates in the through hole 22a.
[0026]
As shown in FIG. 2 (b), the measuring rod 21 starts to move in the horizontal direction when spherical adsorbed charcoal slightly accumulates in the through holes 22a. In FIG. 2B, it starts to move in the direction of the arrow. Then, the upper opening of the space 21 a is gradually covered with the holder 22. The spherical adsorbed charcoal overflowing the through hole 22a is left behind in the through hole 22a, and the lower opening of the through hole 22a is gradually blocked by the upper surface 21d of the measuring rod 21, and eventually remains in the through hole 22a. Note that the spherical adsorbed charcoal may continue to fall from the filling nozzle 16 after the measuring rod 21 starts to move, or the flow of the spherical adsorbed charcoal may be stopped by a valve or the like.
[0027]
The space 21a is in a state where the lower opening is closed by the upper surface of the shutter 24 and the upper opening is closed by the lower surface of the holder 22, and the spherical adsorbed charcoal moves as the measuring rod moves. To do.
[0028]
As shown in FIG. 2 (c), when the measuring rod 21 moves and the lower opening of the space 21a overlaps the upper opening of the through hole 24a of the shutter 24, the spherical adsorbed charcoal in the space 21a is , It begins to fall through the through hole 24a. The through hole 24a communicates with a chute pipe (not shown) at its lower opening, and the spherical adsorbed charcoal is sent to the subsequent work.
[0029]
When the entire surface of the lower opening of the space 21a overlaps the through hole 24a, all the spherical adsorbed charcoal in the space 21a falls. Thereafter, the measuring rod 21 returns to the opposite direction, and the lower opening of the space 21a is again blocked by the upper surface of the shutter 24, and then the upper opening of the space 21a and the lower side of the through hole 22a of the holder 22 The openings overlap. Then, the spherical adsorbed charcoal previously left in the through hole 22a falls into the space 21a, and further, the spherical adsorbed charcoal starts to fall into the space 21a from the filling nozzle 16. By repeating the above operation, the spherical adsorbed coal corresponding to the volume of the space 21a of the measuring rod 21 is weighed and sent to the subsequent work. In addition, the measurement with the measuring rod 21 is performed about 30 to 50 times per minute.
[0030]
The amount of spherical adsorbed coal to be weighed is often specified by weight. In order to measure the granular adsorption end defined by weight with the above-mentioned measuring device, the bulk density of the spherical adsorption charcoal is examined, the volume is converted from the weight, and the measurement is performed with the measuring rod 21 having the space 21a corresponding to the volume. There is a need to. However, the bulk density of the spherical adsorbed charcoal varies slightly during the production of the spherical adsorbed charcoal, and changes somewhat.
[0031]
Therefore, the rod 26 is moved into and out of the space 21a to increase or decrease the volume of the space 21a. That is, if the rod 26 protrudes longer in the space 21a, the volume of the space 21a decreases accordingly, and if the protrusion of the rod 26 becomes shorter, the volume of the space 21a increases correspondingly.
[0032]
In particular, the spherical adsorbed carbon to be weighed has a characteristic that one grain has a true spherical shape and a repose angle of almost 0 (zero), and even if a rod protrudes in the space 21a. Because it goes around the bottom without any gaps, a precise volume of spherical adsorbed charcoal is weighed.
[0033]
In addition, a method of changing the thickness of the space 21a by changing the thickness by using thin weighing rods in order to change the volume of the space 21a can be considered. In addition, it may bite the spherically adsorbed charcoal and its fine powder due to slippage, and it is not suitable for high hardness granular materials such as the spherical adsorbed charcoal. It is effective to adjust the volume.
[0034]
The number of bars is not limited to one, and if there are a plurality of bars, the volume adjustment amount increases accordingly. It is preferable to have rods with different thicknesses because a thick rod can be used to adjust the volume largely, and a thin rod can be used to adjust the volume small.
[0035]
Next, a packaging device according to a second embodiment of the present invention will be described with reference to the schematic diagram of FIG. FIG. 3 shows a spherical adsorption charcoal packaging apparatus including the weighing device 20 according to the first embodiment of the present invention.
[0036]
A hopper 10 is provided on the weighing device 20. The hopper 10 is a container having a wide open upper part and a shape that becomes narrower as it goes down. The lower end is opened and is connected to the filling nozzle 16. A heater 12 is installed in the hopper, and spherical adsorbed charcoal, which is the contents of the hopper, is heated to 60 to 80 ° C.
[0037]
The filling nozzle 16 under the hopper 10 is a thin tube, and is configured to send out the spherical adsorbed charcoal stored in the hopper little by little. The lower end of the filling nozzle 16 enters the through hole 22a of the holder 22 and is opened.
[0038]
As described above, the holder 22 is combined with the measuring rod 21 that reciprocates horizontally underneath and the shutter 24 below it, and further combined with the spring 23 that presses the holder 22 against the lower measuring rod 21, so that the measuring device 20. Is configured. The spring 23 is provided in order to prevent the spherical adsorbed charcoal from entering between the holder 22 and the measuring rod 21 and causing the surface to be damaged. The spring 23 may not be provided.
[0039]
The lower opening of the through hole 24 a of the shutter 24 is connected to the chute pipe 31. The chute pipe 31 has a funnel shape in which the upper part spreads in order to receive the spherical adsorbed charcoal falling from the through hole 24a, and the lower part is a thin pipe. The lower end of the chute pipe 31 is open.
[0040]
Under the chute pipe 31, a tubular tube 90 that wraps the spherical adsorbed charcoal is placed with the mouth open upward. The tube 90 is a flat tape-like sheet formed in a tubular shape under the chute pipe 31. As will be described later, the tube 90 is sealed in the transverse direction, and is shaped like a bag with the sealed portion at the bottom.
[0041]
A sealing device 40 for sealing the seat 90 in the transverse direction is provided below the opening of the chute pipe 31. The sealing device 40 is sandwiched between the top seal bars 41 to heat-press the tube 90 containing the spherical adsorbed charcoal in a transverse direction with a predetermined length. The top seal bar 41 is configured to sandwich the tube 90 from both sides while two metal blocks whose tips are flattened to heat-press the tube 90 are heated by a heater. The top seal bar 41 is pulled downward while sandwiching the tube 90 so that the sealed portion is positioned at the bottom of the next bag for containing the spherical adsorbed charcoal.
[0042]
In conjunction with the movement of the top seal bar 41 of the sealing device 40, the narrow pressure device 50 disposed immediately below the sealing device operates. The narrow pressure device is used for extruding the air in the tube 90 by sandwiching the portion of the tube 90 that is closed by the sealing device 40 with the air bleeding guide 51 in order to prevent the packaged product from expanding due to temperature rise. Device. The air vent guide 51 has a tube 90 containing spherical adsorbent charcoal in which the bag 90 is filled with spherical adsorbent charcoal, and the upper part protrudes and the lower part retracts so that the upper part of the tube 90 is flattened so that nothing enters. It has a shape. The top seal bar 41 and the air bleeding guide 51 are arranged so as to sandwich the tube 90 in the same direction.
[0043]
Under the narrow pressure device 50, a tube 90 containing spherical adsorbent charcoal is cut at a sealed location, and a bag 91 containing the spherical adsorbent charcoal is cut into single or plural packages 92. A device 60 is provided. The cutting device 60 is configured such that two blades cut with the tube 90 interposed therebetween. In addition, in the package 92 in which a plurality of bags 91 each containing spherical adsorbent charcoal are connected, a perforation may be made so as to be easily separated by hand at a seal portion that is not cut, and the cutting device 60 is used for cutting. There may be a blade that is cut at equal intervals on the blade edge and operates at a timing different from that of the blade.
[0044]
A cradle 61 is disposed under the cutting device 60. The cradle 61 is a flat plate installed at an angle, and the cut package 92 is dropped at an angle, and the impact at the time of dropping is reduced. The cradle 61 is provided with a shock prevention roller 62 for further reducing the falling speed. The shock prevention roller 62 is installed so that the package 92 passes between the two cylindrical rollers when the package 92 slides and falls on the cradle 61. Since the package 92 rotates the roller as it passes between the two rollers, its drop speed is reduced. The shock prevention roller 62 may be a single roller, or instead of providing the shock prevention roller 62, a method for reducing the falling speed, for example, a measure for increasing the friction on the cradle 61 may be taken. Good.
[0045]
A cooling device 70 is installed at the tip of the cradle 61. In the cooling device 70, a holder 72 that holds the package 92 in an inclined state is disposed on the conveyor 71, and moves together with the movement of the conveyor. The holder 72 may be a plate erected on the conveyor 71 or may be a bar. The holder 72 holds the thin surface of the package 92 perpendicular to the moving direction. By holding in this way, many packages 92 can be held with the same conveyor length. The package 92 naturally falls at the position where the conveyor 71 is reversed at the end opposite to the position of the cradle 61. The package 92 that has fallen naturally enters a container for packing the package 92, and is packed and shipped.
[0046]
Then, with reference to FIG. 3, the manufacturing method of the package 92 of spherical adsorption charcoal is demonstrated. The spherical adsorbed charcoal is supplied to the hopper 10 from the opened upper portion and temporarily stored in the hopper 10. The spherical adsorbed charcoal stored in the hopper 10 is heated to 60 to 80 ° C. by the heater 12 while being stored. Alternatively, the spherical adsorbed charcoal may be heated to 60 to 80 ° C. through warm air from a heating device in the hopper 10. The temperature rise after packaging causes the contents of the package 92 to expand, forming a void in the bag 91 and raising the presumed maximum temperature to prevent the spherical adsorbed charcoal from moving inside. It is for packaging above.
[0047]
The spherical adsorbed charcoal gradually descends through the hopper 10 and flows from the lower end to the filling nozzle 16. The inner diameter of the filling nozzle 16 is selected so that spherical adsorbed charcoal passes through the filling nozzle 16 and is sent out from the hopper 10 appropriately. A valve for adjusting the amount to be delivered may be provided in the filling nozzle 16.
[0048]
As described above, the spherical adsorbed charcoal is measured from the filling nozzle 16 through the holder 22 to a predetermined amount by the measuring rod 21 and then sent from the shutter 24 to the chute pipe 31.
[0049]
At the same time as the spherical adsorbed charcoal is supplied to the hopper 10, the sheet wound on the roll is drawn out at a predetermined speed, is formed into a cylindrical shape around the lower end of the chute pipe 31, and the overlapping portion is thermocompression bonded. As a result, the tube 90 is formed. As will be described later, the tube 90 is sealed in a transverse direction at a predetermined location by the sealing device 40. The tube 90 is formed into a bag shape with the sealed portion at the bottom, and is placed in a shape having an opening in the direction of the lower end opening of the chute pipe 31.
[0050]
The spherically adsorbed charcoal weighed by the metering device 20 is dropped from the chute pipe 31 into the bag-like tube 90 and is deposited in the lower part of the bag. Then, the air bleeding guide 51 of the narrow pressure device 50 sandwiches the bag-shaped part from both sides and pushes out the air inside. Almost at the same time as the air is evacuated by the narrow pressure device 50, the portion immediately above the portion where the air is evacuated by the narrow pressure device 50 is sealed in the transverse direction by the sealing device 40. The tube 90 is made of a multilayer film having a sealable plastic film as an inner layer, and can be thermocompression bonded by being sandwiched between heated top seal bars 41.
[0051]
The top seal bar 41 moves downward by the length of one spherical adsorbed charcoal while sandwiching the tube 90. By this movement, the sealed portion containing the spherical adsorbed charcoal becomes the bottom of the next bag-like portion of the tube 90.
[0052]
The bags 91 filled with spherical adsorbed charcoal and sealed in the transverse direction are, for example, one bag or three bags, and are cut at the sealing portion by the cutting device 60. When a plurality of bags are cut together as one piece, it is easy to separate them by hand by being sandwiched between blades with notches at equal intervals in the blade tips at the seals between the bags. Perforations may be added.
[0053]
The package 92 cut by the cutting device 60 slides down on the cradle 61 and is dropped to the cooling device 70 after the dropping speed is reduced by the shock prevention roller 62. Since the falling speed to the cooling device 70 is slow, it is possible to prevent the bottom seal of the package 92 from being damaged by the impact at the time of dropping. The package 92 sent to the cooling device 70 is moved over the cooling device by the conveyor 71 over a period of 3 to 5 minutes while being held in an inclined state by the holder 72. The package 92 may be moved at room temperature by the conveyor 71, or may be moved while being blown with cold air. During this time, the spherical adsorbed coal heated to 60 to 80 ° C. and maintaining the temperature by the hopper 10 is cooled to substantially room temperature. By being cooled, the package is squeezed and the spherical adsorbed charcoal does not move in the packaged bag 91.
[0054]
When it is transferred to the end by the conveyor 71, the package 92 naturally falls due to the movement around the lower side of the conveyor 71. A box for packing is prepared at the dropped position, and when a predetermined quantity of the package 92 is stored in the box, the whole box is carried out.
[0055]
Here, the spherical adsorption charcoal which is measured by the weighing device of the first embodiment of the present invention or packaged by the packaging device of the second embodiment will be described. Spherical adsorbed charcoal is a porous spherical carbonaceous material having a diameter of 0.05 to 1 mm and a bulk density of 0.51 ± 0.04 g / ml. Spherical adsorption charcoal varies in the degree of development of pores inside charcoal depending on the degree of activation in the production process. Moreover, the fluctuation of the particle size also affects the bulk density. Due to these factors, the bulk density varies. The bulk density is typically measured by the method of JIS K1474-5.7.
[0056]
Heretofore, spherical adsorbent charcoal has been taken up and explained as a granular material to be weighed and packaged. However, the measuring device, the packaging device and the manufacturing method of the package according to the present invention also apply to other granular materials. Applicable. In particular, it can be suitably used for a granular material having a particle diameter of about 0.05 to 1 mm and a true spherical shape and a small angle of repose.
[0057]
【The invention's effect】
As described above, according to the present invention, there is provided a measuring device capable of measuring granular materials having different volumes with one measuring rod. Moreover, since the packaging apparatus provided with this weighing | measuring apparatus can measure the granular material from which a volume differs with one measuring bowl, it is suitable for packaging the granular material from which a volume differs.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view illustrating a weighing device according to a first embodiment of the present invention.
FIG. 2 is a cross-sectional view illustrating the operation of the weighing device according to the first embodiment of the present invention.
FIG. 3 is a schematic diagram illustrating a packaging device according to a second embodiment of the present invention.
FIG. 4 is a cross-sectional view illustrating a conventional weighing device.
[Explanation of symbols]
20 Weighing device
21 Weighing bowl
21a space
21f Through hole
22 Holder
23 Spring
24 Shutter
26 sticks
31 Chute pipe
40 Sealing device
50 Narrow pressure device
60 cutting device
61 cradle
62 Shock prevention roller

Claims (4)

A first plane and a second plane parallel to the first plane, and a space into which the granular material is fed from the first plane side is between the first plane and the second plane. A measuring rod having a protrusion formed therethrough and entering and exiting the space;
A holder located on the first plane side, having a through hole communicating with the space, and sliding with the first plane;
The second is located on the side of the plane, the space is formed with a through hole that communicates, e Bei a shutter which slides with said second plane;
The granular material fed into the space is a substance having an angle of repose that goes around to the lower side of the protrusion without gaps;
The protrusion is a bar penetrating the surface other than the first plane and the second plane among the surfaces forming the space, and the depth of entering and exiting the space is adjusted by rotating around the axis. Configured to be;
Weighing device. It said rod having different thicknesses be multiple inborn, metering device according to claim 1. A weighing device according to claim 1 or claim 2;
A filling device that fills the tube with the granular material measured by the weighing device;
A sealing device for transversely sealing the tube filled with the particulate matter;
A cutting device for cutting the tube at the sealed region to form a package;
Granular packaging equipment. Supplying the granular material to the granular material packaging apparatus according to claim 3;
Packaging the granular material with the packaging device;
Removing the package;
A method of manufacturing a package.

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