JP2010185865A - Combination weighing apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a combination weighing apparatus capable of effectively preventing unintended sliding of a product material out of a trough. <P>SOLUTION: Each conveying unit 50 has a trough 3 and a plurality of spiral members 5A and 5B. The trough 3 has an inside edge positioned below a distribution table 2 and an outside edge positioned above a weighing hopper 7. The spiral members 5A and 5B are placed at predetermined spaces SA and SB from the inside surface of the trough 3. The spiral members 5A and 5B are configured and arranged to be rotatably driven to convey a product material 100 from the inside edge of the trough 3 toward the outside edge of the trough 3. The spiral members 5A and 5B are configured and arranged to stop movement of the product material 100 on external peripheral surfaces 72 when they are not rotatably driven. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a combination weighing device.

  The following Patent Document 1 discloses a combination weighing device according to the background art. The combination weighing device includes a conical dispersion table and a plurality of troughs arranged in a circle around the dispersion table. A core is disposed in each trough, and a spiral transfer screw is wound around the outer surface of the core. By rotating the core by the motor, the transfer screw is also rotated. Articles supplied from the dispersing table to the inner end of the trough are pushed from behind by a rotating transfer screw and conveyed toward the outer end of the trough.

US Patent Application Publication No. 2006/0196701

  While the transfer screw performs the function of pushing the article from the rear as described above when rotating, if the trough is arranged in a forward tilted posture, it supports the article to be slid down from the trough from the front when stopped. The function of suppressing the slipping of articles from the trough.

  In the combination weighing device disclosed in Patent Document 1, only one transfer screw is arranged corresponding to one trough. Therefore, the tip of the transfer screw does not return to the original position unless the transfer screw rotates once (360 degrees). That is, the dispersion period is 360 degrees. Therefore, if the trough is arranged in a forward tilt posture, depending on the position of the tip of the transfer screw when the rotation is stopped, a situation in which the sliding of the article from the trough cannot be suppressed may occur. If the trough is arranged in a forward leaning posture, the transfer screw can be suppressed when the transfer screw is stopped at a position where the tip contacts the article. This is because, when stopped, the article cannot be supported from the front by the tip, and sliding of the article cannot be suppressed.

  The present invention has been made in view of such circumstances, and an object of the present invention is to obtain a combination weighing device that can effectively regulate the discharge of unintended articles from the trough.

  The combination weighing device according to the first aspect of the present invention includes a dispersion unit that radially disperses a massive article having flexibility that has been input from above, and a plurality of units arranged on a circumference around the dispersion unit. A combination weighing device comprising a conveying means and a plurality of weighing hoppers arranged on a circumference around the plurality of conveying means, wherein each of the plurality of conveying means is positioned below the dispersing means. A trough having an inner end portion and an outer end portion located above the weighing hopper, and an inner surface of the trough, and is arranged with a predetermined clearance from the inner end portion of the trough by being driven to rotate. A plurality of spiral members that convey the article toward the outer end of the trough, and the spiral member stops discharging of the article from the trough by the outer peripheral surface when the spiral member is not rotated. It is an.

  According to the combination weighing device according to the first aspect, the spiral member stops the discharge of the article from the trough by the outer peripheral surface when the spiral member is not rotated. Thereby, it becomes possible to regulate the discharge | emission of the unintended goods from a trough. Moreover, a plurality of spiral members are arranged corresponding to one trough. Therefore, the circumference virtually defined at the outer end portion of the trough (the circumference defined as the rotation locus of the outer end of the spiral member) is divided by the plurality of outer ends of the plurality of spiral members. Therefore, when the rotational drive of the spiral member is stopped, the article is highly likely to come into contact with one of the outer ends of the plurality of spiral members, so that the unintentional discharge of the article from the trough is effectively regulated. It becomes possible.

  The combination weighing device according to the second aspect of the present invention is the combination weighing device according to the first aspect, in particular, the spiral member is an article between its outer peripheral surface and the inner surface of the trough at its outer end. , The discharge of the article from the trough is stopped during the non-rotation drive.

  According to the combination weighing device according to the second aspect, the spiral member sandwiches the article between its outer peripheral surface and the inner surface of the trough at the outer end portion thereof, so that the article from the trough can be driven at the time of non-rotation driving. Regulate emissions. Thereby, discharge | emission of the articles | goods from a trough can be effectively controlled at the time of the non-rotation drive of a spiral member.

  The combination weighing device according to a third aspect of the present invention is the combination weighing device according to the first aspect. Particularly, the spiral member hooks an article by its outer end, so that the spiral member can be removed from the trough during non-rotation driving. The discharge of the article is stopped.

  According to the combination weighing device according to the third aspect, the spiral member stops the discharge of the article from the trough during the non-rotation driving by hooking the article with the outer end thereof. Thereby, discharge | emission of the article | item from a trough can be effectively controlled at the time of the non-rotation drive of a spiral member.

  According to the present invention, it is possible to effectively regulate the discharge of unintended articles from the trough.

It is a top view which shows typically the whole structure of the combination weighing | measuring apparatus which concerns on embodiment of this invention. It is the figure which abbreviate | omitted illustration of the distribution table from FIG. It is a side view which shows typically the whole structure of a combination weighing device. It is a top view which shows the structure of one conveyance means. It is a front view which shows the structure of one conveyance means. It is a perspective view which shows a part of structure of a spiral member. It is a front view which shows the structure of the conveying means which concerns on a 1st modification. It is a top view which shows the external appearance structure of the dispersion | distribution table which concerns on a 2nd modification. It is a side view which shows the external appearance structure of the distribution table which concerns on a 2nd modification. It is a side view which shows the internal structure of a dispersion | distribution table by seeing through a slope part among the structures shown in FIG. It is a front view which shows the structure of one conveyance means. It is a side view which shows the structure of one conveyance means. It is a front view which shows the 1st example of the condition where the articles | goods are conveyed. It is a side view which shows the 1st example of the condition where the articles | goods are conveyed. It is a side view which shows the 1st example of the condition where the articles | goods were conveyed to the outer edge part of the trough. It is a side view which shows the 2nd example of the condition where the articles | goods are conveyed. It is a side view which shows the 2nd example of the condition where the articles | goods were conveyed to the outer edge part of the trough. It is a side view which shows the 3rd example of the condition where the articles | goods are conveyed. It is a side view which shows the 3rd example of the condition where the articles | goods were conveyed to the outer edge part of the trough. It is a side view which shows the 4th example of the condition where the articles | goods were conveyed to the outer edge part of the trough.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In addition, the element which attached | subjected the same code | symbol in different drawing shall show the same or corresponding element.

  FIG. 1 is a top view schematically showing the overall configuration of a combination weighing device 1 according to an embodiment of the present invention. 2 is a diagram in which the distribution table 2 is omitted from FIG. FIG. 3 is a side view schematically showing the overall configuration of the combination weighing device 1. As shown in FIGS. 1 to 3, the combination weighing device 1 includes a dispersion table 2, a conveyance unit 50, a pool hopper 4, a weighing hopper 7, and a collecting chute 8.

  The distribution table 2 is disposed at the approximate center of the main body of the combination weighing device 1. The conveying means 50 is arranged side by side on the circumference around the dispersion table 2. As shown in FIGS. 1 and 2, in the example of the present embodiment, the combination weighing device 1 includes twelve conveying means 50. However, the number of conveying means 50 is not limited to 12 and may be other plural. The pool hoppers 4 are arranged side by side on the circumference around the plurality of transport means 50. That is, the plurality of pool hoppers 4 are arranged in a circular pattern. The pool hopper 4 is arranged corresponding to each of the plurality of transport means 50. Therefore, in the example of the present embodiment, the combination weighing device 1 includes twelve pool hoppers 4. The weighing hoppers 7 are arranged side by side on the circumference around the plurality of conveying means 50 below the pool hopper 4. That is, the plurality of weighing hoppers 7 are arranged in a circular pattern. The weighing hopper 7 is arranged corresponding to each of the plurality of pool hoppers 4. Therefore, in the example of the present embodiment, the combination weighing device 1 includes twelve weighing hoppers 7. The collective chute 8 is disposed below the weighing hopper 7.

  4 and 5 are a top view and a front view, respectively, showing the structure of one transport means 50. FIG. In FIG. 5, the conveying means 50 is viewed from the outer end side of the trough 3 toward the inner end side. The remaining conveying means 50 not shown in FIGS. 4 and 5 has the same structure as that in FIGS. As shown in FIGS. 4 and 5, the conveying means 50 includes a trough 3 and a plurality (two in the example of FIGS. 4 and 5) spiral members 5 </ b> A and 5 </ b> B. The spiral members 5A and 5B are arranged in a positional relationship that divides the 360 degree dispersion period into two equal parts (including almost equal parts, and so on). That is, as shown in FIG. 5, the spiral members 5A and 5B have the circumference R virtually defined at the outer end portion of the trough 3 (that is, as the rotation locus of the outer ends 8A and 8B of the spiral members 5A and 5B). Is arranged in a positional relationship that bisects the outer ends 8A and 8B of the spiral members 5A and 5B. 1 to 3, the spiral member 5A is indicated by a solid line and the spiral member 5B is indicated by a broken line in order to clarify the distinction between the spiral member 5A and the spiral member 5B.

  As shown in FIG. 3, the inner end of the trough 3 is located below the outer peripheral edge of the dispersion table 2, and the outer end of the trough 3 is located above the pool hopper 4. Since the pool hopper 4 is located above the weighing hopper 7, the outer end portion of the trough 3 is also located above the weighing hopper 7. The trough 3 has a shape in which substantially the upper half of the cylinder is cut off. Accordingly, the trough 3 has a bottom surface defined as the inner surface of the cylinder and an open top surface. Also, the outer peripheral edge of the dispersion table 2 is positioned almost directly above the conveying means 50, so that articles discharged from the outer peripheral edge of the dispersion table 2 are delivered to the conveying means 50 with almost no drop. It is.

  The spiral members 5 </ b> A and 5 </ b> B are rotatably disposed on the bottom surface of the trough 3. The inner ends of the spiral members 5A and 5B are fixed to the rotary shaft 6. When the rotary shaft 6 is rotationally driven by a motor (not shown), the spiral members 5A and 5B are rotationally driven in a direction to push out articles in the trough 3 from the inner end portion of the trough 3 toward the outer end portion. As described above, the spiral members 5A and 5B are arranged in a positional relationship that bisects the 360 degree dispersion period. Therefore, referring to FIG. 5, the outer end 8 </ b> B is positioned at the lowest point of the trough 3 by rotating the rotary shaft 6 180 degrees from the state where the outer end 8 </ b> A is positioned at the lowest point of the trough 3. It becomes.

  Moreover, as shown in FIG. 3, the trough 3 is inclinedly arranged in a forward leaning posture so that the outer end portion is positioned below the inner end portion. As a result, the bottom surface of the trough 3 is defined as a downward slope from the inner end portion toward the outer end portion. However, the trough 3 may be arranged in a horizontal posture without tilting forward.

  FIG. 6 is a perspective view showing a part of the structure of the spiral member 5A. As shown in FIG. 6, the spiral member 5A has a circular cross-sectional shape. Thereby, compared with the spiral member which has a rectangular cross-sectional shape, while being able to improve cleaning property, damage to articles | goods can be avoided or suppressed. The structure of the spiral member 5B is the same as this.

  Hereinafter, the operation of the combination weighing device 1 will be described with reference to FIGS. Articles to be weighed (for example, food such as raw meat) are dropped from the upper side of the dispersion table 2 into the central portion of the upper surface of the dispersion table 2. The articles placed on the dispersion table 2 slide down the slope of the dispersion table 2 while being radially dispersed by the dispersion table 2 that is rotationally driven, and are discharged from the outer peripheral edge of the dispersion table 2 to be stored in each trough 3. Supplied to the end from above.

  In each transport means 50, the spiral members 5A and 5B are driven to rotate intermittently. Further, since the core is not disposed in the inner space of the spiral members 5A and 5B, the spiral members 5A and 5B are hollow. Accordingly, the articles supplied from the dispersal table 2 to the inner end of the trough 3 fall on the bottom surface of the trough 3 through the gap between the spiral member 5A and the spiral member 5B, and then are rotated and driven by the spiral members 5A and 5B. The bottom slope of the trough 3 is conveyed from the inner end portion toward the outer end portion by sliding down the down slope while being pushed from behind. The article that has not dropped from the gap between the spiral member 5A and the spiral member 5B is conveyed on the spiral members 5A and 5B.

  Since articles such as raw meat are soft and absorb vibrations, it is difficult to convey them by means of a conveying means (so-called vibration feeder) that conveys articles by vibration. On the other hand, in the conveying means 50 according to the present embodiment, the article can be efficiently conveyed by the interaction between the pressing from behind by the spiral members 5A and 5B and the sliding of the descending slope. Moreover, in a state where the rotational drive of the spiral members 5A and 5B is stopped, the spiral members 5A and 5B function as a stopper for stopping unintended slipping of the article. Therefore, the spiral members 5A and 5B are driven to rotate in the transport means 50 corresponding to the pool hopper 4 in which articles are not stored, and the spiral members 5A and 5B are rotated in the transport means 50 corresponding to the pool hopper 4 in which articles are stored. By not rotationally driving 5B, it is possible to supply the article aiming at the pool hopper 4 that needs to supply the article. As a result, appropriate combination weighing can be realized.

  The articles discharged from the conveying means 50 are supplied to the pool hopper 4 and temporarily stored in the pool hopper 4. The articles discharged from the pool hopper 4 are supplied to the weighing hopper 7 and temporarily stored in the weighing hopper 7, and the weight thereof is weighed by weighing means (not shown) such as a load cell. Then, among all the weighing hoppers 7 that store the articles, a combination of hoppers that realizes a weight value that matches or is closest to the target weight is obtained by calculation, and the selected one or a plurality of weighing hoppers 7 are stored in the selected one. The stored items are discharged. The articles discharged from the weighing hopper 7 are collected by the collecting chute 8 and discharged from the combination weighing device 1 toward downstream equipment (not shown).

  Thus, according to the combination weighing device 1 according to the present embodiment, two spiral members 5A and 5B are arranged corresponding to one trough 3, and the two spiral members 5A and 5B are They are arranged in a positional relationship that bisects the dispersion period. Therefore, the circumference R virtually defined by the outer end portion of the trough 3 is divided into two equal parts by the plurality of outer ends 8A and 8B of the two spiral members 5A and 5B. Accordingly, when the rotation of the spiral members 5A and 5B is stopped, the article is likely to come into contact with the vicinity of the outer ends 8A and 8B of the two spiral members 5A and 5B. It is possible to effectively suppress slipping of the article that is not performed.

<First Modification>
FIG. 7 is a front view showing the structure of the conveying means 50 according to the first modification. In the above embodiment, the two spiral members 5A and 5B are arranged corresponding to one trough 3, but in this modification, the three spiral members 5A to 5C corresponding to one trough 3 are arranged. Is arranged. The spiral members 5A to 5C are arranged in a positional relationship that divides the dispersion period of 360 degrees into three equal parts (substantially including three equal parts, and so on). That is, as shown in FIG. 7, the spiral members 5 </ b> A to 5 </ b> C have a circumference R virtually defined at the outer end portion of the trough 3 by the outer ends 8 </ b> A, 8 </ b> B, 8 </ b> C of the spiral members 5 </ b> A, 5 </ b> B, 5 </ b> C. It is arranged in a positional relationship that divides into three equal parts. Thereby, from the state where the outer end 8A is located at the lowest point of the trough 3, by rotating the rotary shaft 6 120 degrees, the outer end 8B is located at the lowest point of the trough 3, and the outer end 8B is From the state where the trough 3 is located at the lowest point, the rotating shaft 6 rotates 120 degrees, so that the outer end 8C is located at the lowest point of the trough 3.

  According to this modified example, when the rotation of the spiral members 5A to 5C is stopped, the possibility that the article contacts the vicinity of one of the outer ends 8A to 8C of the three spiral members 5A to 5C is further increased. For this reason, it is possible to more effectively suppress the unintended slipping of the article from the trough 3.

  It is also possible to arrange four or more spiral members corresponding to one trough 3.

<Second Modification>
8 and 9 are a top view and a side view, respectively, showing the external structure of the distribution table 2 according to the second modification. FIG. 10 is a side view showing the internal structure of the dispersion table 2 by seeing through the slope portion 60 of the structure shown in FIG. As shown in FIGS. 8 to 10, the dispersion table 2 includes a slope portion 60, a shaft 61, a top cover 62, a rod 63, and a frame 64.

  The inclined surface portion 60 has an outer shape of a hollow eccentric cone whose apex position is eccentric from the center of the bottom surface of the opening. The frame 64 has a disk-like outer shape, and the frame 64 and the slope portion 60 are fixed to each other by joining the peripheral edge of the frame 64 to the side surface of the slope portion 60 from the inside by welding or the like. Further, the upper end of the rod 63 is fixed to the top portion of the slope portion 60 and the lower end of the rod 63 is fixed to the frame 64, whereby the fixation between the frame 64 and the slope portion 60 is reinforced. A fixed portion between the upper end of the rod 63 and the top of the slope portion 60 is covered with a top cover 62. Further, the upper end of the shaft 61 is fixed to the center of the bottom surface of the frame 64. The lower end of the shaft 61 is connected to a drive unit (not shown) such as a motor. When the shaft 61 is rotationally driven by the drive unit, the power is transmitted to the frame 64 via the shaft 61, and as a result, the dispersion table 2 is rotationally driven.

  Referring to FIG. 10, the axis A <b> 2 that penetrates the rod 63 in the vertical direction is shifted in a predetermined direction by a distance L from the axis A <b> 1 that penetrates the shaft 61 in the vertical direction. That is, in the dispersion table 2 according to this modification, the apex of the slope portion 60 is eccentric in a predetermined direction with respect to the rotation center of the dispersion table 2 (substantially equal to the center of the opening bottom of the slope portion 60).

  Referring to FIG. 9, the article 100 is dropped onto the slope portion 60 from above the rotation center of the dispersion table 2 as indicated by an arrow Y1. After that, the article 100 slides down on the slope portion 60 in a direction generally away from the top of the slope portion 60 as indicated by an arrow Y2, and is discharged from the dispersion table 2. Thus, the direction in which the article 100 is discharged from the dispersion table 2 is generally defined by the position of the dispersion table 2 (the position of the top of the slope portion 60). Therefore, the position of the dispersion table 2 is positioned by rotational driving so that the article 100 is discharged toward the transport means 50 corresponding to the pool hopper 4 in which the article 100 is not stored, and then the article is placed on the slope portion 60. By dropping and dropping 100, the article 100 can be supplied from the dispersion table 2 to the conveying means 50.

<Third Modification>
FIGS. 11 and 12 are a front view and a side view, respectively, showing the structure of one transport means 50. In FIG. 12, the internal structure of the conveying unit 50 is illustrated by seeing through one side wall 3 </ b> B of the trough 3. As shown in FIGS. 11 and 12, the trough 3 includes a bottom surface 3A having a substantially semicircular cross-sectional shape and a pair of side walls 3B extending upward from both ends of the bottom surface 3A. A gap SA is provided between the bottom surface 3A and the spiral members 5A and 5B, and a gap SB is provided between the side wall 3B and the spiral members 5A and 5B. Each of the spiral members 5A and 5B has an inner peripheral surface 71 that is a surface closer to the rotation center and an outer peripheral surface 72 that is a surface farther from the rotation center. As shown in FIG. 12, the outer ends 8 </ b> A and 8 </ b> B of the spiral members 5 </ b> A and 5 </ b> B protrude slightly outward from the outer end of the trough 3.

  FIGS. 13 and 14 are a front view and a side view, respectively, showing a first example of a situation in which the article 100 is being conveyed by the conveying means 50. The article 100 is a massive article (for example, raw meat) having flexibility. As shown in FIG. 14, the size of the article 100 is about 3 to 5 times the composite pitch of the spiral members 5A and 5B (about 1.5 to 2.5 times the pitch of the spiral members 5A and 5B). Accordingly, since the article 100 is unlikely to fall from the gap between the spiral member 5A and the spiral member 5B, the article 100 has a gap SB between the side wall 3B and the spiral members 5A, 5B when the spiral members 5A, 5B are driven to rotate. There is a high possibility that it will be transported.

  FIG. 15 is a side view showing a first example of a situation where the article 100 is conveyed to the outer end portion of the trough 3 corresponding to FIG. In this situation, when the rotational driving of the spiral members 5A and 5B is stopped, the spiral members 5A and 5B function as a stopper for restricting unintentional discharge of the article 100 from the trough 3. That is, the article 100 is sandwiched between the outer peripheral surface 72 of the spiral members 5A and 5B and the inner surface of the side wall 3B of the trough 3 at the outer ends of the spiral members 5A and 5B. A force in a direction substantially orthogonal to the transport direction (that is, a direction from the outer peripheral surface 72 toward the side wall 3B) is applied from the outer peripheral surface 72 of the spiral members 5A and 5B. Further, when the article 100 is placed on the outer peripheral surface 72 of the spiral members 5A and 5B at the outer ends of the spiral members 5A and 5B, the article 100 is substantially orthogonal to the conveyance direction of the article 100. A frictional force in the direction (upward in this case) is applied from the outer peripheral surface 72 of the spiral members 5A and 5B. Since the article 100 is held by the force applied from the outer peripheral surface 72, as shown in FIG. 15, the article 100 is not discharged from the trough 3 when the rotational drive of the spiral members 5A and 5B is stopped. Thus, spiral member 5A, 5B stops discharge | emission of the articles | goods 100 from the trough 3 by the outer peripheral surface 72 at the time of the non-rotation drive. Thereby, it is possible to regulate the unintended discharge of the article 100 from the trough 3. In addition, as described above, two spiral members 5A and 5B are arranged corresponding to one trough 3, and the two spiral members 5A and 5B are arranged in a positional relationship that bisects the dispersion period. ing. Therefore, when the rotational driving of the spiral members 5A and 5B is stopped, the article 100 is highly likely to be sandwiched between the outer end portion of either of the spiral members 5A and 5B and the inner surface of the trough 3. Therefore, the unintended discharge of the article 100 from the trough 3 can be effectively regulated.

  FIG. 16 is a side view showing a second example of the situation where the article 100 is being conveyed by the conveying means 50. Here, an example in which the thickness of the article 100 is as thin as the gap SA is shown. When the article 100 is thin, the article 100 goes from the gap SB to the gap SA, and the spiral members 5A and 5B are driven to rotate, so that the article 100 follows the gap SA between the bottom surface 3A and the spiral members 5A and 5B. May be transported.

  FIG. 17 is a side view showing a second example of the situation in which the article 100 is conveyed to the outer end of the trough 3 corresponding to FIG. In this situation, when the rotational driving of the spiral members 5A and 5B is stopped, the spiral members 5A and 5B function as a stopper for restricting unintentional discharge of the article 100 from the trough 3 as described above. That is, the article 100 is sandwiched between the outer peripheral surface 72 of the spiral members 5A and 5B and the inner surface of the bottom surface 3A of the trough 3 at the outer ends of the spiral members 5A and 5B. A force in a direction substantially orthogonal to the conveying direction (that is, a direction from the outer peripheral surface 72 toward the bottom surface 3A) is applied from the spiral members 5A and 5B. Since the article 100 is held by this force, the article 100 is not discharged from the trough 3 in a state where the rotational driving of the spiral members 5A and 5B is stopped as shown in FIG. Thus, spiral member 5A, 5B stops discharge | emission of the articles | goods 100 from the trough 3 by the outer peripheral surface 72 at the time of the non-rotation drive. Thereby, it is possible to regulate the unintended discharge of the article 100 from the trough 3. Moreover, similarly to the above, the unintentional discharge of the article 100 from the trough 3 is effectively restricted due to the two spiral members 5A and 5B being arranged corresponding to the single trough 3. can do.

  FIG. 18 is a side view showing a third example of the situation where the article 100 is being conveyed by the conveying means 50. Here, an example in which the article 100 is dropped from the gap between the spiral member 5A and the spiral member 5B is shown. In this case, when the spiral members 5A and 5B are rotationally driven, the article 100 is conveyed on the inner peripheral surface 71 of the spiral members 5A and 5B.

  FIG. 19 is a side view showing a third example of the situation in which the article 100 is conveyed to the outer end portion of the trough 3 corresponding to FIG. In this situation, when the rotational driving of the spiral members 5A and 5B is stopped, the spiral members 5A and 5B function as a stopper for restricting unintentional discharge of the article 100 from the trough 3 as described above. That is, a frictional force is generated on the contact surface between the inner peripheral surface 71 of the spiral member 5A, 5B and the article 100 at the outer ends of the spiral members 5A, 5B, and this frictional force is relative to the conveying direction of the article 100. The force is applied to the article 100 from the spiral members 5A and 5B as a force in a direction substantially orthogonal (that is, a direction from the inner peripheral surface 71 toward the rotation center of the spiral members 5A and 5B). Since the sliding of the article 100 is suppressed by this frictional force, the article 100 is not discharged from the trough 3 in a state where the rotational drive of the spiral members 5A and 5B is stopped as shown in FIG. Moreover, since the two spiral members 5A and 5B are arranged corresponding to one trough 3, a larger frictional force is applied to the article 100, so that an unintended article from the trough 3 100 emissions can be effectively controlled.

  FIG. 20 is a side view showing a fourth example of a situation in which the article 100 is conveyed to the outer end portion of the trough 3. In this situation, when the rotational driving of the spiral members 5A and 5B is stopped, the spiral members 5A and 5B function as a stopper for restricting unintentional discharge of the article 100 from the trough 3 as described above. That is, the article 100 is held by hooking the article 100 with the outer ends 8A and 8B of the spiral members 5A and 5B. As a result, as shown in FIG. 20, in the state where the rotational drive of the spiral members 5A and 5B is stopped. The article 100 is not discharged from the trough 3. Thus, spiral member 5A, 5B stops discharge | emission of the goods 100 from the trough 3 by outer end 8A, 8B including the outer peripheral surface 72 at the time of the non-rotation drive. Thereby, it is possible to regulate the unintended discharge of the article 100 from the trough 3. In addition, since the two spiral members 5A and 5B are arranged corresponding to one trough 3, the article 100 is hooked by the outer ends 5A and 5B of either of the spiral members 5A and 5B. Is likely to be. Therefore, the unintended discharge of the article 100 from the trough 3 can be effectively regulated.

  In the third modification, the example in which two spiral members 5A and 5B are arranged corresponding to one trough 3 has been described. However, the spiral member arranged corresponding to one trough 3 is described. The number of is arbitrary.

DESCRIPTION OF SYMBOLS 1 Combination measuring apparatus 2 Dispersing table 3 Trough 5A-5C Spiral member 7 Weighing hopper 8A-8C Outer end 50 Conveying means

Claims (3)

Dispersing means for radially dispersing a lump of flexible articles charged from above,
A plurality of conveying means arranged on a circumference around the dispersing means;
A combination weighing device comprising a plurality of weighing hoppers arranged on a circumference around the plurality of conveying means,
Each of the plurality of transport means is
A trough having an inner end located below the dispersing means and an outer end located above the weighing hopper;
A plurality of spiral members that are arranged with a predetermined gap between the inner surface of the trough and convey articles from the inner end of the trough toward the outer end of the trough by being driven to rotate;
The spiral weighing device is a combination weighing device that stops discharging articles from the trough by the outer peripheral surface when the spiral member is not rotated.   2. The spiral member according to claim 1, wherein the spiral member stops the discharge of the article from the trough during non-rotation driving by sandwiching the article between the outer peripheral surface and the inner surface of the trough at an outer end portion thereof. Combination weighing device. The combination weighing device according to claim 1, wherein the spiral member stops the discharge of the article from the trough when the spiral member is driven to rotate by hooking the article with an outer end thereof.

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