JP6157922B2 - Combining scale article transport structure - Google Patents

Description

The present invention relates to an article transport structure for use in the combination weigher.

  In the combination weigher, for example, as shown in Patent Document 1, articles that are objects to be weighed supplied from above the center are dispersed and conveyed radially by a vibration-driven dispersion feeder, and are arranged around the dispersion feeder. Is transferred to the linear feeder and is further vibrated and conveyed outward by the linear feeder. A plurality of supply hoppers are disposed below the conveyance ends of the plurality of linear feeders, and weighing hoppers are respectively disposed below the supply hoppers.

  The articles conveyed by each linear feeder are respectively loaded into the corresponding supply hoppers, and then supplied from the supply hoppers to the corresponding weighing hoppers. The weights of the articles supplied to the respective weighing hoppers are measured, and the respective weighing hoppers are measured. Various combinations of the weight values of the articles supplied to the weighing hopper are selected, a weighing hopper whose combined total weight value is within a predetermined weight range and closest to the target combination weight value is selected, and an article is selected from the selected weighing hopper. The discharged and discharged articles slide down the collecting chute and are discharged from a discharge port provided at the lower part of the collecting chute.

JP 2013-7596 A

  With such a combination weigher, when handling articles that are long and easy to get entangled, such as bean sprouts, torn squid, string-like jelly confectionery, snack confectionery, etc. Retention is likely to occur. That is, since the linear feeder is radially arranged so as to surround the dispersion feeder, the trough of the linear feeder has a narrower width on the start end side in the transport direction on the dispersion feeder side than the width on the end side. That is, it has an outward spreading shape. For this reason, on the start end side, an elongated article is easily entangled between side guides erected from both ends of the trough in the width direction. Further, as shown in FIG. 2 of Patent Document 1, the side guide of the trough is formed so as to gradually become higher from the start end side to the end side in the transfer direction. As a result, the article is more likely to stay on the starting end side.

  In this way, in the case of an article that is slender and easily entangled, when the article is transferred from the dispersion feeder to the linear feeder, the article is easily entangled and stays at the boundary between both feeders. Cannot be supplied smoothly, and there is a problem that the weighing processing capacity and the weighing accuracy are lowered.

  The present invention has been made paying attention to such a situation, and an article transport structure capable of smoothly transporting articles from a dispersion feeder to a linear feeder without stagnation and a combination weigher including the same. The purpose is to provide.

  In order to achieve the above object, the present invention is configured as follows.

(1) The article conveying structure of the combination weigher of the present invention is arranged in a radial manner around a dispersion feeder that vibrates a conical top cone and conveys the article on the top cone to a peripheral portion. A plurality of rectilinear feeders that vibrate the trough and convey articles on the trough outward, a plurality of supply hoppers that temporarily hold and discharge the articles from the plurality of rectilinear feeders, A combination weigher that includes a plurality of weighing hoppers that temporarily hold the articles discharged from the supply hopper and weigh the weight of the articles, and that performs a combination operation based on a weighing value of the articles that are weighed by the weighing hopper A transport structure for the article,
Between the dispersion feeder and the plurality of linear feeders, the top cone and the trough are fixedly arranged in a non-contact state, and includes a guide chute that does not vibrate ,
The guide chute has a guide surface inclined downward toward the outside, and guides the article carried from the peripheral portion of the top cone to the trough by the guide surface and carries it out . ,
A side plate corresponding to the width of each trough of the plurality of linear feeders is provided upright on the guide surface of the guide chute .

  According to the present invention, the article vibrated and conveyed by the top cone of the dispersion feeder is carried into the guide chute, and the subsequent article is subsequently carried into the guide chute so that the article on the guide chute is inclined downward. It is pushed out and conveyed so as to gradually slide outward along the surface, and is carried out to the trough of the linear feeder.

The position at which the article is transported from the guide chute to the trough of the straight feeder, i.e., the position at which the article is transferred to the trough, is the conventional position at which the article is directly transferred from the dispersion feeder to the trough, i.e., the start end of the trough. Instead, it can be the downstream position of the trough in the article conveyance direction. At this downstream position, the width of the outwardly expanded trough is wider than the starting end, and therefore the distance between the side guides erected from both ends in the width direction of the trough is increased, and the article is Even if it is slender and easily entangled, it does not entangle across the side guides of the trough in a bridge shape and is smoothly carried into each trough.
In addition, the articles carried on the guide chute from the top cone of the dispersion feeder are smoothly guided toward the troughs while the movement is regulated by the side plates so as to correspond to the widths of the troughs, As in the conventional example in which an article is directly transferred from a dispersion feeder to a trough, it is possible to prevent an elongated article from being entangled between adjacent troughs.
According to the present invention, even if it is an elongated article that is easily entangled with each other, it is smoothly moved from the top cone of the dispersion feeder to the trough of each linear feeder via the guide chute without staying, and each supply hopper corresponding to each linear feeder and Articles can be smoothly supplied to each weighing hopper, and highly accurate weighing can be performed.

  (2) In a preferred embodiment of the present invention, the angle of inclination of the guide surface of the guide chute is larger than the angle of inclination of the conical top cone.

  According to this embodiment, an article carried into the guide chute from the top cone of the dispersion feeder and pushed and moved by the following article smoothly slides down along the guide surface that is steeper than the cone-shaped top cone, and the straight feeder Carried out to the trough.

  (3) In another embodiment of the present invention, an end portion of the guide chute for carrying out the article to the trough extends above the trough so as to overlap a part of the trough. .

  According to this embodiment, since the end portion on the carry-out side of the guide chute extends to a position overlapping above a part of the start end side of the trough, the end portion on the carry-out side of the guide chute has an outwardly expanded trough. It will face a wide part, and even if the article is elongated, there is no entanglement across the bridge shape between the side guides erected from both ends of the trough width direction, It will be smoothly carried into the trough.

  Moreover, the conventional trough can be used as it is simply by positioning the end portion on the carry-out side of the guide chute so as to overlap a part of the start end side of the conventional trough.

  As described above, according to the present invention, even if the article is slender and easily entangled, the movement of the article from the top cone of the dispersion feeder to the trough of the straight feeder can be smoothly performed without staying through the guide chute. Can do.

It is a schematic diagram which shows schematic structure of the combination scale which concerns on one Embodiment of this invention. It is a top view of the dispersion | distribution feeder of FIG. 1, a guide chute, and a rectilinear feeder. It is a perspective view of the dispersion | distribution feeder of FIG. 1, a guide chute, and some linear advance feeders. It is a disassembled perspective view of the part of the dispersion | distribution feeder and guide chute of FIG.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a schematic diagram showing a schematic configuration of a combination weigher according to an embodiment of the present invention.

  The combination weigher of this embodiment includes a dispersion feeder 2 in the center of the upper part of the apparatus, which disperses articles (not shown), which are objects to be weighed and dropped from the supply apparatus 1, radially by vibration. The dispersion feeder 2 includes a conical top cone 3 and an excitation mechanism 4 that drives the top cone 3 to vibrate.

  The articles to be weighed are not particularly limited, but are suitable for combinatorial weighing of articles that are elongated and easily entangled, such as bean sprouts, split squid, string-like jelly confectionery, snack confectionery, and the like.

  The supply device 1 conveys an article supplied from a belt conveyor (not shown) by vibration and drops and supplies it to the central portion of the top cone 2 of the dispersion feeder 2. In the dispersion feeder 2, the top cone 3 is driven to vibrate, and the article supplied to the central part is conveyed toward the peripheral part. Around the dispersion feeder 2, a plurality of rectilinear feeders 5 that linearly convey articles conveyed by vibration to the periphery of the top cone 3 further outward are arranged radially. The linear feeder 5 includes a trough (feeder pan) 6 on which an article is placed and a vibration mechanism 7 that drives the trough 6 to vibrate.

  A supply hopper 8 is disposed below the conveyance end of each trough 6 of each linear feeder 5, and a weighing hopper 9 is disposed below each supply hopper 8.

  Under the supply hopper 8 and the weighing hopper 9, a closing gate 8a and a discharging gate 9a that can be opened and closed are respectively provided. The supply hopper 8 receives an article conveyed by the linear feeder 5 and dropped and discharged from the end of the conveyance. When the weighing hopper 9 disposed below the empty hopper 9 becomes empty, the feeding gate 8a is opened to drop and discharge the article. Into the weighing hopper 9.

  Each weighing hopper 9 is connected to a weight sensor 10 such as a load cell that measures the weight of an article in the hopper, and weighing data from each weight sensor 10 is output to the control device 11.

  Articles discharged from the weighing hopper 9 are guided downward by the collective chute 12 to the center of the apparatus, and are put into a collective hopper 13 disposed below the collective hopper 12 to be temporarily stored.

  The control device 11 variously combines the weight values of the articles supplied to the respective weighing hoppers 9, and sets the weighing hoppers 9 whose combined total weight value is within a predetermined weight range and is the closest combination to the target combined weight value. The selected article is discharged from the selected weighing hopper 9, the discharged article slides down the collecting chute 12 and is temporarily stored in the collecting hopper 13, and a discharge request signal is sent to the control device 11 from a packaging machine (not shown). When the input is made, the discharge gate 13a of the collecting hopper 13 is controlled to be opened and sent to the lower packaging machine.

  In the combination weigher of this embodiment, a series of rectilinear feeder 5, supply hopper 8, and weighing hopper 9 are arranged 20 in the circumferential direction, and each of the right half 10 and the left half 10 is individually provided. Combination weighing is performed. Further, as shown in the plan view of FIG. 2, a central partition 14 is projected on the upper surface of the top cone 3 in the dispersion feeder 2, so that articles supplied from above the center are divided into a left half and a right half. Are distributed and transported.

  In this embodiment, even if the article is elongated and easily entangled, the article is entangled at the boundary between the feeders 2 and 5 when transferred from the top cone 3 of the dispersion feeder 2 to the trough 6 of the linear feeder 5. The article conveying structure from the dispersion feeder 2 to the linear feeder 5 is configured as follows.

  That is, as shown in FIG. 1, the guide inclined downward toward the outside between the lower edge of the top cone 3 of the dispersion feeder 2 and the upper end side in the conveying direction of the trough 6 of the linear feeder 5. A chute 15 is installed.

  2 is a plan view of the dispersion feeder 2, the guide chute 15 and the rectilinear feeder 5, FIG. 3 is a perspective view in which a part of the rectilinear feeder 5 is omitted, and FIG. 4 is an exploded perspective view thereof. is there.

  The guide chute 15 is made of, for example, stainless steel, and the guide chute 15 is formed in an annular shape as a whole. The guide chute 15 has a guide surface 15b inclined downward toward the outside, and has a low cylindrical truncated cone shape. As shown in FIG. 1, the downward inclination angle α of the guide chute 15 with respect to the horizontal plane of the guide surface 15b is set larger than the downward inclination angle β of the conical top cone 3 of the dispersion feeder 2 with respect to the horizontal plane. Yes.

  As shown in FIGS. 2 to 4, the guide chute 15 has a short side plate corresponding to the side guides 6 a erected on both ends in the width direction of the trough 6 of each linear feeder 5, as shown in FIGS. 2 to 4. 15a is erected. Each side plate 15a is formed so that the height from the guide surface 15b gradually increases toward the outside.

Further, as shown in FIG. 4, mounting pieces 16 project from the four circumferential directions of the guide chute 15 toward the center, and at the case 17 of the vibration mechanism 4 that vibrates and drives the top cone 3 of the dispersion feeder 2. The support plate 18 is connected and fixed, and the mounting piece 16 is bolted to the support plate 18 via a pair of brackets 19 so that the guide chute 15 can vibrate the top cone 3 and the trough. 6 is fixedly arranged in a non-contact state. Since the guide chute 15 is not connected to the vibration mechanism 4 of the top cone 3, it does not vibrate.

  The article conveying structure of this embodiment is configured as described above, and the article that is vibrated and conveyed by the top cone 3 of the dispersion feeder 2 is carried into a guide chute 15 that is fixedly arranged, and the subsequent article is guided. By continuing to carry in the chute 15, the articles on the guide chute 15 are gradually pushed out and conveyed so as to slide along the inclined guide surface 15 b and carried out onto the trough 6 of the linear feeder 5. At this time, since the guide chute 15 is overlapped and positioned above the start end side of the trough 6, the carry-out end of the guide chute 15 faces a portion where the width of the trough 6 is large, and the article is elongated. However, the side portions erected at both ends in the width direction of the trough 6 do not get entangled across the id 6a and are smoothly fed into the trough 6.

  At this time, the article carried into the guide chute 15 from the top cone 3 and pushed and moved by the following article moves so as to smoothly slide down along the guide surface 15b of the guide chute 15 steeply inclined from the top cone 3. I will go.

  Further, since the side plate 15a corresponding to the side guide 6a of the trough 6 of each linear feeder 5 is erected on the guide surface 15b of the guide chute 15, the articles whose lateral movement is restricted by the side plate 15a Thus, it is guided smoothly to each trough 6 of the linear feeder 5, and it is possible to prevent the slender article from being entangled between the adjacent troughs 6.

  Furthermore, in this embodiment, the position of the top cone 3 is raised compared to the conventional example, and the guide chute 15 is arranged below the peripheral edge of the top cone 3 and above the start end side in the conveying direction of the trough 6 of the linear feeder 5. The conventional dispersion feeder 2 and the straight feeder 5 can be used as they are.

(Other embodiments)
The present invention can also be implemented in the following forms.

( 1 ) The guide chute 15 is configured such that a side plate 15a is provided radially on the upper surface of a series of annular umbrella-shaped members, or a plurality of parts manufactured in the circumferential direction are annularly connected, etc. Can be configured.

( 2 ) The trough 6 of the linear feeder 5 may be a dedicated trough with a shorter start end in the transport direction.

DESCRIPTION OF SYMBOLS 2 Dispersing feeder 3 Top cone 4 Exciting mechanism 5 Straight feeder 6 Trough 7 Exciting mechanism 8 Supply hopper 9 Weighing hopper 12 Collecting chute 13 Collecting hopper 15 Guide chute 15a Side plate 15b Guide surface 17 Case

Claims (3)

A dispersion feeder that vibrates a cone-shaped top cone and conveys an article on the top cone to a peripheral portion, and is arranged radially around the dispersion feeder, and the trough is vibrated so that an article on the trough A plurality of rectilinear feeders that transport the squeeze outward, a plurality of supply hoppers that temporarily hold and discharge the articles from the plurality of rectilinear feeders, and temporarily hold the articles discharged from the plurality of supply hoppers A plurality of weighing hoppers for weighing the article,
The article transport structure of a combination weigher that performs a combination operation based on a weighing value of an article to be weighed by the weighing hopper,
Between the dispersion feeder and the plurality of linear feeders, the top cone and the trough are fixedly arranged in a non-contact state, and includes a guide chute that does not vibrate ,
The guide chute has a guide surface inclined downward toward the outside, and guides the article carried from the peripheral portion of the top cone to the trough by the guide surface and carries it out . ,
A side plate corresponding to the width of each trough of the plurality of linear feeders is erected on the guide surface of the guide chute.
An article conveying structure of a combination weigher characterized by the above. The inclination angle of the guide surface of the guide chute is larger than the inclination angle of the conical top cone,
The article transport structure of the combination weigher according to claim 1. An end portion of the guide chute for carrying out the article to the trough extends above the trough so as to overlap a part of the trough.
The article conveying structure of the combination weigher according to claim 1 or 2.

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