Combined metering device

Abstract

The present invention relates to a combination metering device, which can effectively implement a countermeasure against the adhesion of articles at low cost. In one embodiment, the combination metering device comprises: a plurality of hoppers that receive articles input from the outside and discharge them downstream after temporarily retaining the articles; a discharge chute that receives the articles discharged from the hoppers and causes the articles to slide further downstream; an acquisition unit that acquires the weight values ​​of the articles retained in each hopper; and a control unit that performs a combination calculation based on the weight values ​​acquired by the acquisition unit and discharges the articles from the hopper determined by the combination calculation to the discharge chute, wherein the discharge chute has a first slide surface and a second slide surface, the first slide surface has a plurality of openings, the second slide surface blocks a part of the openings and is arranged at a position closer to the inside of the discharge chute than the first slide surface, and the second slide surface is formed continuously with the first slide surface on the upstream side, left side, and right side of the opening.

Description

Technical Field

[0001] The invention relates to a combined metering device. Background Art

[0002] Conventionally, there is known a technique that uses a louver structure as a countermeasure against adhesion of articles to a discharge chute (for example, refer to Patent Document 1).

[0003] Patent Document 1: WO2014 / 067533A1

[0004] However, in the above-mentioned technology, processing is performed on both sides of the discharge chute, but there is a problem that processing on the side where the articles do not flow is only costly and has no effect on the adhesion of the articles. Summary of the invention

[0005] Therefore, the present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a combination weighing device that can effectively implement a countermeasure against article adhesion at low cost.

[0006] The gist of a combined weighing device in one embodiment is that it comprises: a plurality of hoppers for receiving articles introduced from the outside and discharging the articles downstream after temporarily retaining the articles; a discharge chute for receiving the articles discharged from the hoppers and causing the articles to slide further downstream; an acquisition unit for acquiring weight values ​​of the articles retained in each of the hoppers; and a control unit for performing a combined calculation based on the weight values ​​acquired by the acquisition unit, and causing the articles to be discharged from the hopper determined by the combined calculation to the discharge chute, wherein the discharge chute has a first sliding surface and a second sliding surface, the first sliding surface has a plurality of openings, the second sliding surface blocks a portion of the openings, and is arranged at a position closer to the inside of the discharge chute than the first sliding surface, and the second sliding surface is formed continuously with the first sliding surface on the upstream side, left side, and right side of the opening.

[0007] The gist of a combined weighing device in one embodiment is that it comprises: a plurality of hoppers for receiving articles thrown in from the outside and discharging the articles downstream after temporarily retaining the articles; a discharge chute for receiving the articles discharged from the hoppers and causing the articles to slide further downstream; an acquisition unit for acquiring weight values ​​of the articles retained in each of the hoppers; and a control unit for performing combined calculation based on the weight values ​​acquired by the acquisition unit, and discharging the articles from the hopper determined by the combined calculation to the discharge chute, wherein the discharge chute has a plurality of protrusions on a surface for conveying the articles, and an opening is formed at the downstream end of the plurality of protrusions, extending from the surface to the back.

[0008] Effects of the Invention

[0009] According to the present invention, it is possible to provide a combination weighing device capable of effectively achieving a countermeasure against article adhesion at low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a figure which shows schematically the combination metering device 1 which concerns on one embodiment.

[0011] Figure 2 This is a diagram showing an example of a flow path surface inside the discharge chute 9 of the combination metering device 1 according to one embodiment.

[0012] Figure 3 yes Figure 2 Magnified view of area A in FIG.

[0013] Figure 4 yes Figure 3 XX section view in.

[0014] Description of Reference Numerals

[0015] 1…combined metering device; 2…dispersed feeder; 3…radiation feeder; 4…storage hopper; 4a…door; 5…metering hopper; 5a, 5b…door; 6…auxiliary hopper; 6a…door; 7…distribution chute; 9…discharge chute; 30…control unit; 40…head; 50…acquisition unit; 90…supply conveyor; 91…first sliding surface (surface); 91A…opening; 92…second sliding surface (protrusion); 92L…left side plane; 92R…right side plane; 92U…upper side plane; 93…back side; 100…spraying unit. DETAILED DESCRIPTION

[0016] Hereinafter, with reference to the accompanying drawings, the preferred embodiments of the present invention will be described in detail. In addition, in the description of the following drawings, the same or similar parts are marked with the same or similar reference numerals. However, the drawings are schematic, and it should be noted that the ratios of the various dimensions are different from the actual ratios. Therefore, the specific dimensions, etc. should be judged in reference to the following description. In addition, the drawings may also contain parts with different dimensional relationships and ratios. In this specification and the drawings, for elements that actually have the same function and structure, the same reference numerals are marked to omit repeated descriptions, and elements that are not directly related to the present invention are omitted from the drawings.

[0017] (First Embodiment)

[0018] Below, refer to Figure 1 to Figure 4 , a combination metering device 1 according to a first embodiment of the present invention will be described.

[0019] Figure 1 1 is a diagram schematically showing a combination metering device 1 according to the present embodiment. Figure 2FIG. 1 is a diagram showing an example of a flow path surface inside the discharge chute 9 of the combination metering device 1 of the present embodiment. Figure 3 yes Figure 2 A magnified view of area A in Figure 4 yes Figure 3 XX section view in.

[0020] like Figure 1 As shown, the combination weighing device 1 of this embodiment includes a dispersed feeder 2, n heads 40, a discharge chute 9, an acquisition unit 50, and a control unit 30. n is a natural number greater than or equal to 1, and may be a natural number greater than or equal to 2. n is 14, for example.

[0021] The head 40 is configured in a ring shape when viewed from above. The head 40 is composed of a first head 40-1 to an nth head 40-n. The first head 40-1 to the nth head 40-n are arranged counterclockwise in a top view in the order of numbers. Here, "ring shape" includes a circular ring shape, a polygonal ring shape, etc. In this embodiment, the head 40 configured in a circular ring shape is described as an example.

[0022] The head 40 includes the radiation feeder 3, the storage hopper 4, the weighing hopper 5, the auxiliary hopper 6, and the distribution trough 7. Therefore, the radiation feeder 3, the storage hopper 4, the weighing hopper 5, the auxiliary hopper 6, and the distribution trough 7 are also arranged in a ring shape in a plan view.

[0023] The dispersed feeder 2 is a flat conical member. Articles are supplied to the dispersed feeder 2 by a supply conveyor 90 disposed above the dispersed feeder 2. The dispersed feeder 2 vibrates the upper surface of the dispersed feeder 2 by an electromagnet (not shown) disposed at the lower portion of the dispersed feeder 2. The dispersed feeder 2 disperses the articles supplied to the upper surface in the circumferential direction while conveying them in the radial direction, and supplies the articles to each radiation feeder 3.

[0024] Each radiation feeder 3 is a sheet metal member formed by bending a stainless steel plate and is arranged radially around the dispersion feeder 2 .

[0025] Each radiation feeder 3 is configured so that the conveying surface is vibrated by an electromagnet (not shown) provided at the lower portion of the radiation feeder 3. Each radiation feeder 3 is configured so that the article is conveyed outward by the vibration of the conveying surface.

[0026] In addition, each radiation feeder 3 is configured to supply articles to the hopper 4 of the head 40 to which it belongs.

[0027] The conveying capacity of the radial feeder 3 can be adjusted by the vibration intensity (vibration amplitude) and vibration time of the conveying surface. Therefore, by adjusting the vibration intensity and vibration time, the weight value of the articles supplied to each storage hopper 4 can be within a predetermined range.

[0028] Each hopper 4 is disposed below the front end of the corresponding radiation feeder 3. Each hopper 4 is configured to temporarily hold or discharge the article supplied from the radiation feeder 3.

[0029] The hopper 4 is provided with a door 4a for opening and closing the bottom of the hopper 4 and a stepping motor (not shown) for driving the door 4a.

[0030] The door 4a is configured to open and close by controlling a stepping motor through the control unit 30. The storage hopper 4 is configured to hold articles inside the storage hopper 4 when the door 4a is closed, and to discharge articles into the weighing hopper 5 of the head 40 to which it belongs when the door 4a is opened.

[0031] The weighing hopper 5 is configured to temporarily receive articles for weighing of the articles, and to distribute and discharge the weighed articles in either the first direction FD or the second direction SD.

[0032] Each weighing hopper 5 is arranged directly below the storage hopper 4 of the head 40 to which it belongs. The weighing hopper 5 is configured to hold the articles supplied from the storage hopper 4 and to measure the weight value of the articles.

[0033] The weighing hopper 5 is provided with doors 5 a and 5 b for opening and closing the bottom of the weighing hopper 5 , and a stepping motor (not shown) for driving the doors 5 a and 5 b .

[0034] The weighing hopper 5 is configured to hold articles inside the weighing hopper 5 when both doors 5a and 5b are closed. This state is a state in which the weighing hopper 5 temporarily receives articles.

[0035] The weighing hopper 5 is configured to distribute and discharge weighed articles in either the first direction FD or the second direction SD by opening one of the doors 5a and 5b.

[0036] The weighing hopper 5 is configured to sort and discharge the articles in the first direction FD when the door 5 b is open, and to discharge the articles into the auxiliary hopper 6 of the head 40 to which the weighing hopper 5 belongs.

[0037] On the other hand, the weighing hopper 5 is configured to sort and discharge the articles in the second direction SD when the door 5 a is open, and to discharge the articles into the sorting slot 7 of the head 40 to which the weighing hopper 5 belongs.

[0038] The auxiliary hopper 6 is configured to temporarily receive the articles discharged in the first direction FD and discharge the received articles downstream. Each auxiliary hopper 6 is arranged below the weighing hopper 5 of the head 40 to which it belongs, near the center of the combined weighing device 1 .

[0039] The auxiliary hopper 6 is configured to temporarily hold or discharge the articles supplied from the weighing hopper 5 .

[0040] The auxiliary hopper 6 has an openable and closable door 6a. Specifically, the auxiliary hopper 6 is provided with a door 6a for opening and closing the bottom of the auxiliary hopper 6.

[0041] The auxiliary hopper 6 is configured to hold articles inside the auxiliary hopper 6 when the door 6a is closed. This state is a state in which the auxiliary hopper 6 temporarily receives articles.

[0042] On the other hand, the auxiliary hopper 6 is configured to discharge articles to the discharge chute 9 in a state where the door 6 a is opened.

[0043] Furthermore, the auxiliary hopper 6 may be provided with a weighing sensor so as to be able to measure the weight value of the articles accumulated in the auxiliary hopper 6 .

[0044] Here, the weighing hopper 5 and the auxiliary hopper 6 constitute a plurality of hoppers, and the plurality of hoppers receive objects thrown in from the outside, temporarily retain them, and then discharge them downstream.

[0045] The distribution trough 7 is configured to discharge the articles discharged in the second direction SD to the downstream side. Each distribution trough 7 is arranged below the weighing hopper 5 of the head 40 to which it belongs and on the outer side of the combined weighing device 1 .

[0046] The distribution trough 7 switches positions by the driving unit. The distribution trough 7 is configured to discharge the articles discharged in the second direction SD to the discharge chute 9 in the first position and to discharge the articles discharged in the second direction SD to the outside of the discharge chute 9 (outside the system) in the second position.

[0047] The articles discharged from the auxiliary hopper 6 and the distribution chute 7 slide down the discharge chute 9. That is, the discharge chute 9 is configured to discharge the articles downstream.

[0048] The discharge chute 9 is configured to collect and discharge downward the articles discharged from the weighing hopper 5 and the auxiliary hopper 6 determined by the combination calculation performed by the control unit 30 described later. The articles discharged from the discharge chute 9 are supplied to a subsequent packaging device or the like.

[0049] That is, the discharge chute 9 is configured to receive the articles discharged from the weighing hopper 5 and the auxiliary hopper 6 and to cause them to slide further downstream.

[0050] The acquisition unit 50 is configured to acquire weight values ​​of the articles accumulated in each weighing hopper 5 and each auxiliary hopper 6 .

[0051] Specifically, the acquisition unit 50 may be configured to acquire a weight value measured by a weighing sensor of the weighing hopper 5 as the weight value of the article accumulated in the weighing hopper 5 .

[0052] In addition, the acquisition unit 50 can also be configured to, when the auxiliary hopper 6 is provided with a metering sensor, acquire the weight value measured by the metering sensor; when the auxiliary hopper 6 is not provided with a metering sensor, acquire the weight value of the items retained in the metering hopper 5 immediately before the metering hopper 5 opens the door 5b to distribute the items in the first direction FD and discharges them, as the weight value of the items retained in the auxiliary hopper 6.

[0053] The control unit 30 is configured to perform a combination calculation based on the weight values ​​of the articles acquired by the acquisition unit 50 , and discharge the articles from the weighing hopper 5 and the auxiliary hopper 6 determined by the combination calculation to the discharge chute 9 .

[0054] Below, refer to Figure 2 to Figure 4 Next, an example of the flow path surface on the inner side I of the discharge chute 9 of the combination metering device 1 of the present embodiment will be described.

[0055] Figure 2 The discharge chute 9 is shown in a state where the flow path surface on the inner side I is deployed upward. Figure 2 As shown in FIG. 1 , the flow path surface on the inner side I of the discharge chute 9 is subjected to louver processing over the entire surface.

[0056] In the following, in this embodiment, the case of implementing louver processing on the flow surface of the inner side I of the discharge chute 9 is used as an example for explanation, but the present invention is not limited to this example, and can also be applied to the case of implementing louver processing on any surface (flow surface) where articles slide down by their own weight, such as the dispersed feeder 2, the radial feeder 3, the storage hopper 4 (door 4a), the metering hopper 5 (doors 5a, 5b), the auxiliary hopper 6 (door 6a), and the inner side I of the distribution trough 7.

[0057] like Figure 3 As shown, the discharge chute 9 has a first sliding surface 91 and a second sliding surface 92 .

[0058] Here, if Figure 3 as well as Figure 4 As shown, the first sliding surface 91 has a plurality of openings 91A.

[0059] In addition, if Figure 4 As shown, the second sliding surface 92 is configured to block a portion of the opening 91A. Figure 4 As shown, the second slide surface 92 is arranged at a position closer to the inner side I of the discharge chute 9 than the first slide surface 91 .

[0060] In addition, if Figure 3 As shown, the second slide-down surface 92 is formed continuously with the first slide-down surface 91 on the upstream side U, the left side L, and the right side R of the opening 91A.

[0061] Specifically, if Figure 3 As shown, the second sliding surface 92 has a left side plane 92L, a right side plane 92R, and an upper side plane 92U.

[0062] Here, if Figure 3 As shown, the left side flat surface 92L is formed to stand from the first slide-down surface 91 toward the inner side I on the left side L of the opening 91A.

[0063] In addition, if Figure 3 As shown, the right side flat surface 92R is formed to stand from the first slide-down surface 91 toward the inner side I on the right side R of the opening 91A.

[0064] In addition, if Figure 3 As shown, the upper plane 92U is formed to connect the left side plane 92L and the right side plane 92R.

[0065] In the flow path surface on the inner side I of the discharge chute 9, as shown in FIG. Figure 4 As shown, the article slides down from the upper side U to the lower side D along the first sliding surface 91 and the upper plane 92U of the second sliding surface 92 by its own weight.

[0066] In other words, if Figure 3 As shown, the discharge chute 9 has a plurality of protrusions 92 on a surface 91 for conveying articles. An opening 92A is formed at a downstream end 92E of the plurality of protrusions 92, which extends from the surface 91 toward the back surface 93.

[0067] According to the above structure, since a second sliding surface (protrusion) 92 composed of a left plane 92L, a right plane 92R and an upper plane 92U is provided, the contact area between items with high adhesion (objects to be measured) and the flow surface of the discharge chute 9 can be reduced, thereby reducing the adhesion of the items and reducing the measuring error.

[0068] Furthermore, according to the above-described configuration, since the opening 91A is provided on the first sliding surface (surface) 91 , air can enter through the opening 91A, thereby reducing the adhesion of objects.

[0069] Furthermore, since the left flat surface 92L and the right flat surface 92R are provided on the second slide surface 92 , it is possible to reduce the leakage of water contained in the articles to the outside O of the discharge chute 9 .

[0070] Here, if Figure 1 As shown, the combination metering device 1 of this embodiment may further include a discharge portion 100 .

[0071] like Figure 4 As shown, the ejection portion 100 is configured to eject air from the outside O toward the inside I of the discharge chute 9 in the opening 91A.

[0072] According to this configuration, the air ejected from the ejection unit 100 can further reduce the adhesion of objects.

[0073] According to the combination weighing device 1 of the present embodiment, it is possible to effectively implement measures against adhesion of articles at low cost.

[0074] The present invention is described in detail using the above-mentioned embodiments, but it is obvious to those skilled in the art that the present invention is not limited to the embodiments described in this specification. The present invention can be implemented as a modification and variation without departing from the gist and scope of the present invention determined by the description of the claims. Therefore, the description of this specification is for the purpose of illustration and does not have any restrictive meaning on the present invention.

Claims

1. A combined metering device comprising: A plurality of hoppers for receiving objects thrown in from the outside and discharging the objects downstream after temporarily retaining the objects; a discharge chute, receiving the articles discharged from the hopper and allowing the articles to slide further downstream; An acquisition unit, which acquires the weight value of the articles stored in each of the hoppers; as well as a control unit that performs a combination calculation based on the weight value acquired by the acquisition unit, and discharges the article from the hopper determined by the combination calculation to the discharge chute, The discharge chute has a first sliding surface and a second sliding surface, The first sliding surface has a plurality of openings. The second sliding surface blocks a portion of the opening and is arranged at a position closer to the inner side of the discharge chute than the first sliding surface. The second sliding surface is formed continuously with the first sliding surface on the upstream side, the left side, and the right side of the opening. The second sliding surface has: A left plane, rising from the first sliding surface toward the inner side on the left side of the opening; a right side plane, rising from the first sliding surface toward the inner side on the right side of the opening; as well as The upper plane connects the left plane and the right plane.

2. The combined metering device according to claim 1, wherein: The combined metering device further includes a blowout portion configured to blow out air from the outside of the discharge chute toward the inside in the opening.

3. A combined metering device comprising: A plurality of hoppers for receiving objects thrown in from the outside and discharging the objects downstream after temporarily retaining the objects; a discharge chute, receiving the articles discharged from the hopper and allowing the articles to slide further downstream; An acquisition unit, which acquires the weight value of the articles stored in each of the hoppers; as well as a control unit that performs a combination calculation based on the weight value acquired by the acquisition unit, and discharges the article from the hopper determined by the combination calculation to the discharge chute, The discharge chute has a plurality of protrusions on the surface where the articles are conveyed. An opening extending from the front surface toward the back surface is formed at the downstream end of the plurality of protrusions, The protrusion has: A left side plane, standing from the surface toward the inside on the left side of the opening; a right side plane, standing from the surface toward the inner side on the right side of the opening; as well as The upper plane connects the left plane and the right plane.

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