Weight inspection apparatus

The weight inspection device addresses the issue of twisting and rigidity in conventional stands by using a base structure with four support pillars and a wide base member, enhancing accuracy and cleanliness.

JP2025176206APending Publication Date: 2025-12-03ISHIDA CO LTD
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Patent Information

Application Number
JP2025158323
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2025-09-24
Publication Date
2025-12-03

AI Technical Summary

Technical Problem

Conventional weight inspection equipment stands are prone to twisting due to a pair of leg members connected by two rail-like members, leading to decreased rigidity and weighing accuracy.

Method used

A weight inspection device with a base structure featuring at least four support pillars and a base member spanning across beams, ensuring a base width equal to or greater than the bottom width of the conveying and weighing unit, which reduces twisting and enhances rigidity.

Benefits of technology

The improved rigidity prevents twisting, thereby increasing weighing accuracy and facilitating easy drainage and cleanliness of the base member.

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Abstract

To provide a weight inspection apparatus that enables weight reduction while increasing rigidity of a frame.SOLUTION: A weight inspection apparatus 100 includes: a conveyance-and-weighing unit 20 for measuring the weight of an inspection object P while conveying the inspection object P in a conveyance direction TD; and a frame 50 for supporting the conveyance-and-weighing unit 20. The frame 50 has at least four support columns 51 and 52 disposed at positions that do not overlap the conveyance-and-weighing unit 20 in a plan view, and the upper ends of the support columns 51 and 52 are as hight as a conveyance surface 24a of the conveyance-and-weighing unit 20.SELECTED DRAWING: Figure 10
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Description

[Technical Field]

[0001] The present invention relates to a weight checker. [Background technology]

[0002] Conventionally, a weight inspection device is known that measures the weight of an object to be inspected while transporting it and supplies the object to a downstream device. The weight inspection device includes an intake unit that takes in the object to be inspected and a weighing unit that detects the weight of the object to be inspected supplied from the intake unit. The intake unit and the weighing unit are supported by a stand. For example, as described in Patent Document 1, the stand includes a pair of inverted U-shaped leg members arranged at a predetermined distance in the transport direction (X-axis direction in Patent Document 1), and two rail-like members fixed on the pair of leg members and extending in the transport direction. The rail-like members are fixed to the horizontal portions of the leg members by welding or the like. The rail-like members support a weighing box of the weighing unit and an intake box of the intake unit.

[0003] In the device of Patent Document 1, a load cell, which is a strain-generating body, is attached inside a weighing box. One fixed end of the load cell is fixed inside the weighing box, and the other free end of the load cell supports the weighing conveyor via a motor box that houses a drive motor and a pair of support members. In the weighing section, the weight of the weighing conveyor itself and the weight of the object to be inspected are transmitted to the free end of the load cell via the support members, motor box, etc. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 5064973 Summary of the Invention [Problem to be solved by the invention]

[0005] In the conventional stand structure of weight inspection equipment, a pair of leg members is connected by two rail-like members, which makes the stand prone to twisting. A structure that is prone to twisting can lead to a decrease in the stand's rigidity and can also lead to a decrease in weighing accuracy.

[0006] An object of the present invention is to provide a weight checker that can improve weighing accuracy while ensuring rigidity by using a mount structure that is less likely to cause twisting. [Means for solving the problem]

[0007] A weight inspection device according to one embodiment of the present invention comprises a transporting and weighing unit that weighs an object to be inspected while transporting the object in a transport direction, and a base that supports the transporting and weighing unit. The base has at least four support pillars arranged in a position that does not overlap with the transporting and weighing unit in a planar view, at least two beams connected to two of the support pillars that are aligned in a width direction perpendicular to the transport direction, and a base member that is spanned between the at least two beams and supports the transporting and weighing unit. The base width, which is the widthwise dimension of the base member, is equal to or greater than the bottom width, which is the widthwise dimension at the bottom end of the transporting and weighing unit.

[0008] In this weight inspection device, a base section with a base width equal to or larger than the bottom width of the conveying and weighing section is spanned across the beam section. Because this base section supports the conveying and weighing section, twisting is less likely to occur than in conventional structures using two rail-shaped members. Furthermore, the base section with a large base width ensures rigidity. As a result of preventing twisting and increasing rigidity, weighing accuracy is also improved.

[0009] The base member includes a top panel that forms the installation surface on which the transporting and weighing unit is installed, and a pair of side panels connected to both ends of the top panel in the width direction, and the underside between the lower ends of the side panels may be open. In this case, when the stand is washed with water, water is less likely to accumulate on the base member. Because of its excellent drainage properties, it is easy to keep it dry.

[0010] The lower ends of the side plates may be formed with folded plates that are folded inward in the width direction. In this case, the base member not only has excellent drainage properties during cleaning, but the folded plates also further increase the strength of the base member.

[0011] The conveying and weighing unit includes an intake conveyor and a weighing conveyor, with a gap formed between the intake conveyor and the weighing conveyor, and the base member includes a top panel that forms the installation surface on which the conveying and weighing unit is installed, with an opening provided in the top panel so as to overlap a position below the gap in the conveying direction. When cleaning the platform with water, water falls from between the box provided below the intake conveyor and the box provided below the weighing conveyor, but this water can be quickly drained (allowed to fall) without stagnation in the base member. This also reduces the accumulation of debris on the base member. [Effects of the Invention]

[0012] According to the present invention, twisting is less likely to occur and rigidity is ensured. As a result of preventing twisting and increasing rigidity, weighing accuracy is also improved. [Brief explanation of the drawings]

[0013] [Figure 1] FIG. 1 is a front view of a weight inspection device according to an embodiment. [Figure 2] FIG. 2 is a perspective view of the weight checker of FIG. 1. [Figure 3] FIG. 2 is a side view (as seen from the upstream side) of the weight checker of FIG. 1. [Figure 4] FIG. 2 is an enlarged front view showing the vicinity of the conveying and measuring unit. [Figure 5] FIG. 2 is a plan view of the platform and the transport and weighing unit. [Figure 6] FIG. 10 is a perspective view showing a state in which the intake conveyor unit and the weighing conveyor unit are removed. [Figure 7] FIG. [Figure 8] FIG. [Figure 9] FIG. [Figure 10] FIG. 10 is a perspective view showing a measuring section fixed to a base member. DETAILED DESCRIPTION OF THE INVENTION

[0014] A weight inspection device 100 according to one embodiment will be described below with reference to the drawings. In the description of the drawings, the same elements are given the same reference numerals, and duplicate explanations will be omitted. In the following description, the terms "upper" and "lower" correspond to the up and down vertical directions as shown in FIG. 1, and the terms "upstream" and "downstream" refer to the upstream and downstream directions in the conveying direction TD of the inspection object P.

[0015] The weight inspection device 100 is an apparatus that transports an inspection object P supplied from the upstream side to the downstream side and inspects whether the weight of the inspection object P is within an allowable range. As shown in FIG. 1 , the weight inspection device 100 mainly includes a transporting and weighing unit 20, a main body unit 40, and a stand 50.

[0016] The transport and weighing unit 20 is attached to a stand 50, and has an intake unit 10 arranged on the upstream side (left side in the figure) and a weighing device 30 arranged on the downstream side (right side in the figure).

[0017] The intake unit 10 of the transporting and weighing unit 20 receives and transports the object to be inspected P from the upstream side, and delivers the object to be inspected P to the weighing device 30 located downstream. The intake unit 10 includes an intake conveyor (intake conveyor unit) 11 and a drive unit 15.

[0018] The intake conveyor 11 has a conveyor frame 12, a drive roller 13A, a driven roller 13B, and a transport belt 14. The conveyor frame 12 is supported by a pair of support members 61 arranged on the front and rear sides of the intake conveyor 11. The drive roller 13A and the driven roller 13B are rotatably attached to the upstream and downstream sides of the conveyor frame 12 in the transport direction TD, respectively. The transport belt 14 is an endless belt that is wound around the drive roller 13A and the driven roller 13B.

[0019] The drive unit 15 drives the intake conveyor 11. The drive unit 15 has a drive motor 16 and a motor box 17. The drive motor 16 rotates the drive roller 13A. The motor box 17 houses the drive motor 16. The motor box 17 is fixed to a base member 58 of the stand 50 (described in detail later) via a support member 61. The motor box 17 may also be fixed directly to the base member 58 of the stand 50. The drive motor 16 transmits a driving force to the drive roller 13A via a timing belt 18, causing the drive roller 13A to rotate. This causes the conveyor belt 14 to rotate between the drive roller 13A and the driven roller 13B, and the inspection object P on the conveyor belt 14 is conveyed to the conveying and weighing unit 20.

[0020] The weighing device 30 of the transporting and weighing section 20 weighs the weight of the inspection object P while transporting the inspection object P handed over from the intake section 10. The weighing device 30 includes a transport section 20A and a weighing section 20B. The transport section 20A transports the inspection object P. The transport section 20A includes a transport conveyor (weighing conveyor section) 21 and a drive section 25.

[0021] In this embodiment, the conveying direction TD of the transfer conveyor 21 is horizontal and is the same as the conveying direction TD of the intake conveyor 11. The transfer conveyor 21 has a conveyor frame 22, a drive roller 23A, a driven roller 23B, and a conveying belt 24. The conveyor frame 22 is supported by a pair of support members 62 arranged on the front and rear sides of the conveying and weighing section 20. The drive roller 23A and the driven roller 23B are rotatably attached to the upstream and downstream sides of the conveyor frame 22 in the conveying direction TD, respectively. The conveying belt 24 is an endless belt wound around the drive roller 23A and the driven roller 23B.

[0022] The drive unit 25 drives the transport conveyor 21. The drive unit 25 has a drive motor 26 and a motor box 27. The drive motor 26 rotates the drive roller 23A. The motor box 27 houses the drive motor 26. The motor box 27 is fixed to the base member 58 of the stand 50 via a support member 62. The motor box 27 may be fixed directly to the base member 58 of the stand 50. The drive motor 26 transmits a driving force to the drive roller 23A via a timing belt 28, causing the drive roller 23A to rotate. This causes the transport belt 24 to rotate between the drive roller 23A and the driven roller 23B, and the inspection object P on the transport belt 24 is transported downstream.

[0023] The weighing unit 20B weighs the weight of the object P to be inspected on the transporting unit 20A. The weighing unit 20B includes a load cell 31 and a weighing box 32. The load cell 31 detects a change in strain caused by the object P to be inspected being placed on the transporting unit 20A, and measures the weight of the object P to be inspected placed on the transporting unit 20A. The weighing box 32 is fixed to the base member 58 of the stand 50. The weighing box 32 houses the load cell 31.

[0024] The main body 40 is disposed behind the weighing device 30. The main body 40 has a housing 41, a control unit 42, a display operation unit 43, and a power switch 44. The main body 40 is fixed to the lower beam 55 of the stand 50.

[0025] The housing 41 is a vertically long housing extending in the vertical direction. The control unit 42 is housed inside the housing 41. The control unit 42 controls the operation of each unit of the weight inspection device 100. The control unit 42 is composed of, for example, a CPU, a ROM, a RAM, etc. The control unit 42 receives a weighing signal output from the load cell 31 and determines whether the weighing value indicated by the weighing signal is within a predetermined allowable range.

[0026] The display operation unit 43 is provided on the top of the housing unit 41. The screen 43a of the display operation unit 43 displays information related to the weighing performed by the weighing device 30. For example, the screen 43a of the display operation unit 43 displays the results of the judgment made by the control unit 42. The power switch 44 turns the power of the weight inspection device 100 on and off.

[0027] Next, with reference to FIGS. 1 to 5 and 7, the configuration of the platform 50 and the relative positions of the components of the platform 50 and the transporting and weighing unit 20 will be described. As shown in FIGS. 1 to 3, the platform 50 supports the transporting and weighing unit 20. That is, the platform 50 supports both the intake unit 10 and the weighing device 30. The platform 50 has four support columns 51, 52 erected on the installation surface (ground) F of the weight inspection apparatus 100. The four support columns 51, 52 extend linearly, for example, in the vertical direction and are parallel to each other. More specifically, the platform 50 has a pair of left support columns 51 disposed on the upstream side and a pair of right support columns 52 disposed on the downstream side. The pair of left support columns 51 are disposed so as to be spaced apart at a predetermined interval in the width direction (front-rear direction) perpendicular to the transport direction TD. The pair of right support columns 52 are disposed so as to be spaced apart at a predetermined interval in the width direction (front-rear direction) perpendicular to the transport direction TD. The four support columns 51, 52 are arranged at the vertices of a rectangle in plan view. The distance between the pair of left support columns 51 and the distance between the pair of right support columns 52 are, for example, equal, and the transporting and weighing unit 20 is contained within this front-to-rear distance range. As shown in FIG. 5, the four support columns 51, 52 are arranged in positions that do not overlap with the transporting and weighing unit 20 in plan view. The four support columns 51, 52 are arranged around the transporting and weighing unit 20 (around it in the horizontal direction). Each of the support columns 51, 52 is made of, for example, a circular tubular member made of metal.

[0028] In the following description, of the pair of left support columns 51, the one located on the front side may be referred to as the left support column 51A, and the one located on the rear side may be referred to as the left support column 51B. Of the pair of right support columns 52, the one located on the front side may be referred to as the right support column 52A, and the one located on the rear side may be referred to as the right support column 52B. As described above, the left support column 51A, left support column 51B, right support column 52A, and right support column 52B are parallel to one another and extend, for example, in the vertical direction. In this embodiment, the heights (i.e., lengths) of the left support column 51A, left support column 51B, right support column 52A, and right support column 52B are equal to each other, with respect to the installation surface F.

[0029] The platform 50 has a pair of upper beams (first beams) 53 and a pair of lower beams 55 connected to a left support column 51 and a right support column 52 aligned in the transport direction TD. As shown in FIGS. 2 and 7, the upper beam 53 is connected to, for example, an upper end 51a of the left support column 51 and an upper end 52a of the right support column 52. The lower beam 55 is connected to, for example, a lower portion 51b of the left support column 51 and a lower portion 52b of the right support column 52. Each of the upper beam 53 and the lower beam 55 is made of, for example, a metal rectangular tubular member. Either or both of the upper beam 53 and the lower beam 55 may be a member with a C-shaped cross section that opens downward.

[0030] In the following description, the front one of the pair of upper beam portions 53 may be referred to as the upper beam portion 53A, and the rear one as the upper beam portion 53B. The front one of the pair of lower beam portions 55 may be referred to as the lower beam portion 55A, and the rear one as the lower beam portion 55B. One upper beam portion 53A and one lower beam portion 55A are fixed to the left support column 51A and the right support column 52A, which are aligned in the conveying direction TD. One upper beam portion 53B and one lower beam portion 55B are fixed to the left support column 51B and the right support column 52B, which are aligned in the conveying direction TD. The housing portion 41 of the main body portion 40 is attached to the lower beam portion 55B via a bracket 47. The upper beam portion 53A, the upper beam portion 53B, the lower beam portion 55A, and the lower beam portion 55B are parallel to one another and extend, for example, horizontally. The upper beam portion 53A, the upper beam portion 53B, the lower beam portion 55A, and the lower beam portion 55B have the same length.

[0031] The platform 50 includes a left horizontal beam (second beam) 56 connected to a pair of left support columns 51 aligned in the width direction (front-rear direction), and a right horizontal beam (second beam) 57 connected to a pair of right support columns 52 aligned in the width direction (front-rear direction). The left horizontal beam 56 and the right horizontal beam 57 are fixed to the vertical centers of the left support columns 51 and the right support columns 52. The left horizontal beam 56 and the right horizontal beam 57 both extend horizontally and are located at a height between the upper beam 53 and the lower beam 55. The height of the left horizontal beam 56 is lower than the height of the left support column 51A and the height of the left support column 51B. The height of the right horizontal beam 57 is lower than the height of the right support column 52A and the height of the right support column 52B. Each of the left horizontal beam 56 and the right horizontal beam 57 is formed, for example, from a circular tubular member made of metal. The left horizontal beam section 56 and the right horizontal beam section 57 are parallel to each other and extend, for example, horizontally. The length of the left horizontal beam section 56 and the length of the right horizontal beam section 57 are equal. The height of the left horizontal beam section 56 and the height of the right horizontal beam section 57 are equal.

[0032] The platform 50 further includes a base member 58 spanning between the left horizontal beam 56 and the right horizontal beam 57. The base member 58 extends, for example, horizontally. The base member 58 extends, for example, parallel to the installation surface F. The base member 58 is made of, for example, a metal member with a C-shaped cross section that opens downward. The base member 58 includes a flat top panel 81. The motor box 17 of the drive unit 15, the motor box 27 of the drive unit 25, and the weighing box 32 are fixed to the top panel 81 of the base member 58 using appropriate fastening members (bolts and nuts, screws, etc.). The top panel 81 is an attachment surface or installation surface for attaching the transporting and weighing unit 20 to the platform 50. A rectangular opening 81e having an area approximately 1 / 2 to 1 / 4 of the area of ​​the top panel 81 is formed in the central region of the top panel 81 (see also FIG. 8).

[0033] The upper beam portion 53, the lower beam portion 55, the left horizontal beam portion 56, and the right horizontal beam portion 57 are connected to the support portions 51 and 52, respectively, by, for example, welding. The base member 58 is connected to the left horizontal beam portion 56 and the right horizontal beam portion 57 by, for example, welding. Note that the connection method is not limited to welding, and may be, for example, adhesive bonding, or a fixing bracket or the like and a fastening member.

[0034] As shown in Fig. 5, in the frame 50, the two upper beam sections 53 (upper beam section 53A and upper beam section 53B) and the left horizontal beam section 56 and right horizontal beam section 57 form a quadrangle in a plan view. In a plan view, the conveying and weighing section 20 is disposed within (within) the quadrangle formed by the two upper beam sections 53 and the left horizontal beam section 56 and right horizontal beam section 57. More specifically, as shown in Fig. 6, in a plan view, the motor box 17, the motor box 27, and the weighing box 32 are disposed within (within) the quadrangle formed by the two upper beam sections 53 and the left horizontal beam section 56 and right horizontal beam section 57.

[0035] More specifically, in the frame 50, the left horizontal beam section 56 and the right horizontal beam section 57 are both shorter than the upper beam section 53. In other words, the quadrangle formed by the four (four sides) frame-shaped beam sections, namely the pair of upper beam sections 53, the left horizontal beam section 56, and the right horizontal beam section 57, is a rectangle. The pair of upper beam sections 53 are a pair of long-side beam sections that form the long sides of the rectangle. The left horizontal beam section 56 and the right horizontal beam section 57 are a pair of short-side beam sections that form the short sides of the rectangle.

[0036] 1 to 4, the conveying and weighing unit 20 is supported by a base member 58. That is, the intake unit 10 and the weighing device 30 are supported by the base member 58. In other words, the conveying and weighing unit 20 is supported by the left horizontal beam unit 56 and the right horizontal beam unit 57 via the base member 58.

[0037] 1 and 4, the conveying surface 14a of the conveying belt 14 of the intake conveyor 11 and the conveying surface 24a of the conveying belt 24 of the transport conveyor 21 are located at the same height. In other words, the conveying surfaces 14a and 24a are located on the same plane. The object P to be inspected is transferred from the conveying surface 14a to the conveying surface 24a, and a gap X having a minute width (length in the transport direction TD) is formed between the intake conveyor 11 and the transport conveyor 21.

[0038] The height of the upper beam portion 53A connected to the upper end portion 51a of the left support portion 51A and the upper end portion 52a of the right support portion 52A is equal to the height of the upper beam portion 53B connected to the upper end portion 51a of the left support portion 51B and the upper end portion 52a of the right support portion 52B. In this embodiment, the heights of the upper beam portions 53A and 53B are the same as the heights of the conveying surfaces 14a and 24a. In other words, assuming that the installation surface F is a flat plane, the distance from the installation surface F to the upper end surfaces (upper ends) 53c of the upper beam portions 53A and 53B is equal to the distance from the installation surface F to the conveying surfaces 14a and 24a. The upper end surfaces 53c of the upper beam portions 53A and 53B are flush with the upper end surfaces of the two left support portions 51 and the two right support portions 52.

[0039] The platform 50 is provided with four support columns, namely, a left support column 51 and a right support column 52, surrounding the transporting and weighing unit 20. As shown in Fig. 5, the transporting and weighing unit 20 is disposed between the right support column 52A and the upper beam column 53B in the front-to-rear direction. In addition, when viewed from above, the transporting and weighing unit 20 is disposed between the left horizontal beam column 56 and the right horizontal beam column 57 in the left-right direction (transport direction TD).

[0040] As shown in FIG. 2 , the upper beams 53A and 53B are disposed to the sides of the conveyor belts 14 and 24. This arrangement allows the upper beams 53A and 53B, which are part of the platform 50, to function as protective members for the intake conveyor 11 and the transport conveyor 21. In a conventional configuration in which the platform 50 is disposed below the transporting and weighing unit 20, support arms extending in the front-to-rear and up-to-down directions are attached to inverted U-shaped legs, and bumper members are provided at the upper ends of the support arms. The bumper members extending in the transport direction serve to protect the transport unit of the transporting and weighing unit. In the weight inspection device 100 of this embodiment, the upper beam 53 is provided to bridge the upper ends (or upper portions) of two support columns aligned in the transport direction TD, protecting the transport unit 20A (transport conveyor 21) of the transporting and weighing unit 20. Separate members such as the conventional support arms are not required; a part of the platform 50 functions as a bumper.

[0041] 8 and 9, the base member 58 includes a top panel 81 that forms an installation surface on which the conveying and weighing unit 20 is installed, and a pair of side panel parts 82 connected to both ends of the top panel part 81 in the width direction. Furthermore, the lower surface between the lower ends of the pair of side panel parts 82 is open, forming an open part 85. The height of the open part 85 may be positioned within the range of the diameter of the right horizontal beam part 57 (and the left horizontal beam part 56), for example. Furthermore, a pair of folded plate parts 83 that are folded in the width direction (front-rear direction) are formed at the lower end of the side panel part 82.

[0042] In the weight inspection device 100, as shown in FIG. 10 , the base width W1, which is the widthwise dimension of the base member 58, is larger than the bottom width W2, which is the widthwise dimension of the weighing box 32 that constitutes the bottom end of the transporting and weighing unit 20. The base width W1 may be equal to the bottom width W2. The phrase "the base width W1 is equal to the bottom width W2" includes cases where the base width W1 is the same as the bottom width W2, but also includes cases where the base width W1 differs from the bottom width W2 but the difference is very small. The phrase "the base width W1 is equal to the bottom width W2" has the same meaning as "the base width W1 is approximately equal to the bottom width W2." In this case, the difference between the base width W1 and the bottom width W2 is less than 5% of the bottom width W2. The base width W1 may also be slightly smaller than the bottom width W2.

[0043] The base width W1 of the base member 58 is constant. The same magnitude relationship as above also holds true between the base width W1 of the base member 58 and the lower end width, which is the widthwise size of the motor box 17, which is the widthwise size of the weighing box 32 that constitutes the lower end of the conveying and weighing unit 20 (see FIG. 3).

[0044] According to the weight inspection device 100 of this embodiment, a base member 58 having a base width W1 equal to or larger than the bottom width W2 of the conveying and weighing unit 20 is bridged across the left horizontal beam unit 56 and the right horizontal beam unit 57. Because this base member 58 supports the conveying and weighing unit 20, twisting is less likely to occur than in a conventional structure using two rail-shaped members. Furthermore, the base member 58 having a large base width W1 ensures rigidity. As a result of preventing twisting and increasing rigidity, weighing accuracy is also improved.

[0045] The base member 58 includes a top panel 81 that forms the installation surface on which the transporting and weighing unit 20 is installed, and a pair of side panel parts 82 connected to both ends of the top panel part 81 in the width direction, with the underside between the lower ends of the side panel parts 82 being open. This makes it difficult for water to accumulate on the base member 58 when washing the stand 50 with water. Excellent drainage (water drainage) makes it easy to keep the base member dry.

[0046] A folded plate portion 83 is formed at the lower end of the side plate portion 82, folded inward in the width direction. The base member 58 not only has excellent drainage properties during cleaning, but the folded plate portion 83 also further increases the strength of the base member 58.

[0047] An opening 81e is provided in the top panel 81 so as to overlap a position below the gap X in the transport direction TD. When the platform 50 is washed with water, water falls between the motor box 17 provided below the intake conveyor 11 and the motor box 27 provided below the transport conveyor 21, but this water can be quickly drained (allowed to fall) without being retained in the base member 58. Furthermore, the accumulation of dust on the base member 58 can be reduced.

[0048] Although the embodiments of the present invention have been described above, the present invention is not limited to the above embodiments. For example, the gap X may be omitted. The pair of bent plate portions 83 may be omitted. The base member 58 may have various cross sections, but the base width W1 of the base member 58 has the above-described relationship with the bottom width W2 of the transporting and weighing unit 20.

[0049] The configuration of the conveying and weighing unit can also be modified in various ways. For example, a configuration in which the weighing box is incorporated into the conveying unit may be adopted. Even in this case, the base width W1, which is the widthwise dimension of the base member 58, is equal to or greater than the bottom width W2, which is the widthwise dimension of the bottom end of the conveying and weighing unit 20.

[0050] The intake unit 10 may be omitted. In that case, the base 50 may support only the weighing device 30. In the base 50, the lower beam unit 55 may be omitted.

[0051] The quadrangle formed by the four beam sections in plan view may be a square. [Explanation of symbols]

[0052] 10...intake section, 11...intake conveyor (intake conveyor section), 20...transport and weighing section, 20B...weighing section, 21...transport conveyor (weighing conveyor section), 50...frame, 51, 51A, 51B...left support section, 52, 52A, 52B...right support section, 53, 53A, 53B...upper beam section (first beam section), 55, 55A, 55B...lower beam section, 56...left horizontal beam section (second beam section), 57...right horizontal beam section (second beam section), 58...base member, 81...top panel section, 82...side panel section, 83...folded panel section, F...installation surface, TD...transport direction, P...object to be inspected, W1...base width, W2...bottom end width, X...gap section.

Claims

1. a conveying and weighing unit that conveys the object to be inspected in a conveying direction while weighing the object; a platform supporting the conveying and weighing unit, The frame is At least four support columns are disposed at positions that do not overlap with the conveying and weighing section in a plan view, The height of each upper end of the support column is equal to the height of the conveying surface of the conveying and weighing unit. Weight checking equipment.

2. the transporting and weighing unit includes an intake unit that receives and transports the object to be inspected from the upstream side and delivers the object to the downstream side, and a weighing device that weighs the object to be inspected while transporting the object delivered from the intake unit, and is attached to the platform; The weight checker according to claim 1.

3. the platform includes a pair of beam portions connected to two of the support columns that are aligned in the transport direction, The height of the upper end of at least one of the beam sections is equal to the height of the conveying surface of the conveying and weighing section.

3. The weight inspection device according to claim 1 or 2.

Citation Information

Patent Citations

  • JP1975064973A