JP2012163404A - Separable weighing machine and method of weighing load of measurement object using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a separable weighing machine which is made compact and is capable of properly maintaining the load measurement accuracy of a measurement object.SOLUTION: A separable weighing machine 100 includes: a pair of platforms 30 and 40 disposed so as to face each other with a separation region 20 therebetween; a plurality of load cells LC1 to LC8 which support the platforms 30 and 40 from under respectively and are capable of measuring a load of a measurement object 10 on the platforms 30 and 40; and a linking device which forms a link between the platforms 30 and 40 and releases the link. When a lateral load in a direction perpendicular to a carrying direction 200 acts on the platforms 30 and 40 by the load of the measurement object 10, movement of the platforms 30 and 40 based on the lateral load is stopped by formation the link.

Description

  The present invention relates to a separation type weighing machine and a load weighing method using the separation type weighing machine. In particular, the present invention relates to a technology for connecting a platform of the above-described separation type weighing machine.

  In equipment for moving articles (objects to be weighed) made of coiled metal wire, metal plate, etc. (for example, steel strip wound in a coil shape) on the transport path using the transport device in the factory facility, In many cases, a weighing machine that can measure the load of the object to be weighed is incorporated in the middle of the conveyance path. This is convenient because the load of the object to be weighed can be measured during the conveyance of the object to be weighed.

  And, in such a weighing machine, conventionally, a weighing machine (for example, refer to Patent Document 1; hereinafter, abbreviated as “integrated weighing machine” if necessary) on which a platform for placing an object to be weighed is integrated. 2. Description of the Related Art There is known a weighing machine (for example, refer to Patent Document 2; hereinafter, abbreviated as “separated weighing machine” as necessary) in which a platform on which an object is to be placed is separated.

JP 2000-131125 A Japanese Utility Model Publication No. 6-25732

  However, the integrated weighing machine of Patent Document 1 tends to increase the size of the integrated platform, which increases the cost of the weighing machine including the foundation work.

  On the other hand, in the separation type weighing machine of Patent Document 2, for example, as shown in FIG. 7 of the same publication, a lateral load in a direction perpendicular to the conveyance direction of the object to be weighed is applied to each of the pair of platforms. If the usage pattern of the weighing machine acting on the weighing machine is taken, the load weighing accuracy of the object to be weighed by the weighing machine may be lowered. Specifically, since each of these platforms is supported by the load cell, the lateral load causes the platforms to swing in the direction separating the platforms (that is, the load cell is tilted). This is a factor that reduces the load weighing accuracy of the object to be weighed. Although the influence of such a lateral load can be reduced by using the steady rest device, the influence of the lateral load cannot always be completely eliminated by the steady rest device alone. And, for example, if the mounting table hits the side wall of the installation base due to such lateral shaking of the mounting table, the weighing of the object to be weighed cannot be ensured with high accuracy in the weighing machine.

  The present invention has been made in view of such circumstances, and an object of the present invention is to provide a separation type weighing machine capable of downsizing the weighing machine and appropriately maintaining load weighing accuracy of an object to be weighed. . Another object of the present invention is to provide a method for measuring the load of an object to be weighed using such a separation type weighing machine.

  In order to solve the above-described problems, the present invention supports a pair of mounting tables opposed to each other with a predetermined separation area and the above-mentioned mounting table from below, and also loads the objects to be weighed on the above-mentioned mounting table. A plurality of load detectors that can be measured, and a connection device that forms and releases the connection between the tables described above, and a lateral load in a direction perpendicular to the conveying direction by the load of the object to be weighed When the above described table acts on the above-mentioned table, a separation type weighing machine is provided in which the movement of the table described above based on the lateral load is prevented by the formation of the connection.

  With such a configuration, in the separation type weighing machine of the present invention, the inconvenience that the platform moves due to the lateral load (for example, the inconvenience that it moves so as to affect the load weighing accuracy of the weighing object by the weighing machine) is eliminated. As a result, in the separation type weighing machine, it is possible to appropriately eliminate the factor that reduces the load weighing accuracy of the object to be weighed. In addition, since the separation type platform can be built into the weighing machine while preventing the load weighing accuracy of the object to be measured, high measurement accuracy is possible for the load weighing of the object to be weighed by the weighing machine. The machine can be made compact.

  In addition, the separation type weighing machine of the present invention may further include a transport device that transports the object to be weighed in the transport direction. And when the said conveyance apparatus approachs into the said separation area, and when the said conveyance apparatus retracts | saves from the said separation area, you may cancel | release the connection of the above-mentioned stand using the said connection apparatus.

  With this configuration, in the separation-type weighing machine of the present invention, the separation-type platform can be incorporated into the weighing machine while ensuring the conveyance path of the conveyance device on which the object is loaded. Therefore, it is possible to achieve high measurement accuracy and to make the weighing machine compact.

  In the separation-type weighing machine according to the present invention, the connecting device may further include a movable body connected to each of the above-described tables and a driving device that drives the movable body. And the link mechanism of the said movable body may be used for the formation of the said connection, and the cancellation | release of the said connection.

In addition, according to the present invention, after the connection between the pair of platforms is released using the connection device, the conveying device on which the object to be weighed is loaded into the separation region between the above-described tables, and then the connection device. To form a connection between the aforementioned tables,
The load receiving unit is lowered using a load detector that lowers the object to be weighed using the transport device and places the object to be loaded on the load receiving unit of the pair of mounts, and supports the pair of mounts. Measure the load of the object to be weighed on the surface (however, as will be described later, after weighing the object to be weighed, the object to be weighed is removed from the load receiving portions of the pair of platforms by using the transport device. Further, there is also provided a method for measuring the load of the object to be weighed using a separation type weighing machine that carries the conveying device carrying the object to be weighed out of the weighing machine area (that is, out of the separation area).

  As described above, in the method for measuring the load of the object to be weighed according to the present invention, the inconvenience that the platform moves due to the lateral load (for example, the inconvenience that it moves so as to affect the load weighing accuracy of the object to be weighed by the weighing machine) can be solved. As a result, it is possible to appropriately eliminate the factor that decreases the load weighing accuracy of the object to be weighed. In addition, it is possible to measure the load of the object to be weighed using a weighing machine that uses a separate platform while preventing the load weighing accuracy of the object to be weighed. Measurement accuracy is possible and the weighing machine can be made compact. In addition, the load of the object to be weighed can be measured using a weighing machine that uses a separate type of platform while ensuring the transfer path on the carry-in side of the transfer device. The weighing machine can be made compact.

  Further, in the method for measuring a load of an object to be weighed according to the present invention, the object to be weighed after the load measurement is lifted by using the transport device, and the object to be weighed is removed from the load receiving portions of the pair of platforms. The connection device may be used to release the connection, and then the transfer device on which the object to be weighed is loaded may be carried out of the separation region.

  As described above, the load of the object to be weighed can be measured by using a weighing machine that uses a separation-type platform while securing the carry-out side conveyance path of the conveying device. Accuracy can be achieved and the weighing machine can be made compact.

  ADVANTAGE OF THE INVENTION According to this invention, while achieving compactization of a weighing machine, the separation type weighing machine which can maintain the load weighing precision of a to-be-measured object appropriately is obtained. In addition, according to the present invention, a method for measuring the load of an object to be weighed using such a separation type weighing machine can be obtained.

FIG. 1 is a diagram showing a configuration example of a separation type weighing machine according to an embodiment of the present invention. In FIG. 1, the figure which looked at the separation-type weighing machine from the conveyance direction of the to-be-measured object is shown. FIG. 2 is a diagram showing a configuration example of the separation type weighing machine according to the embodiment of the present invention. FIG. 2 shows a side view (HH view) of the separation type weighing machine of FIG. FIG. 3 is a diagram showing a configuration example of the separation type weighing machine according to the embodiment of the present invention. FIG. 3 shows a plan view (VV view) of the separation type weighing machine of FIG. FIG. 4 is a diagram illustrating an operation example of the separation-type weighing machine according to the embodiment of the present invention.

  Hereinafter, specific configuration examples and operation examples of the separation type weighing machine according to the embodiment of the present invention will be described with reference to the drawings.

  In the following description, the same or corresponding elements are denoted by the same reference symbols throughout all of the drawings, and redundant description thereof may be omitted.

  In addition, the following specific description merely illustrates the features of the separation type weighing machine. For example, when the following specific examples are described with appropriate reference numerals attached to the same or corresponding terms as the terms specifying the separation type weighing machine, the specific components are the corresponding separation components. It is an example of the component of a type | mold weighing machine.

  For example, as a specific example of the “coupling device”, “first coupling devices 50F and 60F” and “second coupling devices 50B and 60B” are illustrated below, but the present invention is not limited thereto. As in Modification 2 to be described later, the link member used to connect the left and right mounting tables 30 and 40 may be arranged on only one side.

  In addition, the above-mentioned “releasing the connection between the tables using the connection device” does not necessarily use both of the following “first connection devices 50F and 60F” and “second connection devices 50B and 60B”. This does not mean that the connection between the left and right platforms 30 and 40 is released. When the coil car 70 enters the separation region 20 between the left and right platforms 30 and 40 as in Modification Example 5 described later, the connection between the left and right platforms 30 and 40 is released using the first coupling devices 50F and 60F. You can just do it. In addition, when the coil car 70 is retracted from the separation region 20 between the left and right mounting tables 30 and 40, the connection between the left and right mounting tables 30 and 40 may be simply released using the second connecting devices 50B and 60B.

  Furthermore, in the following specific description, “load cells LC1, LC2, LC3, LC4” are exemplified as “load detectors” for the left platform 30, and “load detectors” for the right platform 40 are illustrated. Although “LC5, LC6, LC7, LC8” is illustrated, the present invention is not limited to this. As in Modification Example 4 described later, the total number of load cells may be six (that is, three for each of the platforms).

  Therefore, the characteristics of the separation type weighing machine are not limited by the following specific description.

(Embodiment)
1, FIG. 2 and FIG. 3 are diagrams showing a configuration example of a separation type weighing machine according to an embodiment of the present invention. 1, the figure which looked at the separation type weighing machine 100 from the conveyance direction of the to-be-measured object 10 is shown. FIG. 2 shows a side view (HH view) of the separation type weighing machine 100 of FIG. FIG. 3 shows a plan view (VV view) of the separation type weighing machine 100 of FIG.

  As shown in FIGS. 1, 2, and 3, the separation type weighing machine 100 of the present embodiment includes a pair of a left mounting table 30 and a right mounting table 40 that are opposed to each other with a separation region 20 therebetween, and left and right mountings thereof. The bases 30 and 40 are connected to each other, the connection is released, and the connection devices disposed near the ends of the left and right mounting bases 30 and 40 are provided. Further, the separation type weighing machine 100 is configured to be able to convey the object to be weighed 10 (for example, a coiled steel strip) in the conveying direction 200 and also includes a conveying device disposed below the left and right mounting tables 30 and 40. .

  Here, a transport form of the object to be weighed 10 is shown in which the central axis of the coiled object to be weighed 10 and the transport direction 200 of the object to be weighed 10 are parallel to each other.

  Further, when the separation-type weighing machine 100 of FIG. 1 is viewed in plan (FIG. 3), rectangular pits 25 </ b> A are formed on the surface of the installation base 25. As shown in FIGS. 1, 2, and 3, the left and right platforms 30, 40, the coupling device, and the transport device are arranged in the pit 25 </ b> A. Note that such a separation-type weighing machine 100 has a depth of the pit 25A as compared with an integrated weighing machine (for example, see FIG. 6 of Patent Document 1) in which the platform is integrated and disposed below. There is an advantage that it can be formed shallow, and this can save the installation cost of the separation type weighing machine 100 including the foundation work.

  Here, for convenience of the following description, in FIGS. 1, 3, and 3, the object to be weighed 10 is conveyed with the conveyance direction 200 of the object to be weighed 10 to the separation-type weighing machine 100 as the “front-back direction”. By moving from the “front” to the “rear” by the apparatus, the transfer device on which the object 10 is placed can be carried into the separation area 20 of the separation type weighing machine 100 and can be carried out from the separation area 20. .

  In addition, the direction in which the gravity of the object to be weighed is “vertical direction”, and the gravity of the object to be weighed acts from “upper” to “lower”.

  Further, the direction orthogonal to the “front-rear direction” and the “vertical direction” is defined as “left-right direction” (however, this direction may be referred to as “horizontal direction”). In the “direction”, the left mounting table 30 and the right mounting table 40 are separated.

  Moreover, in FIG. 1, the form of the connection apparatus when the connection between the left and right mounting bases 30 and 40 is formed is illustrated by a solid line, and the form of the connection apparatus when the connection between the left and right mounting bases 30 and 40 is released. Is shown by a two-dot chain line, and for the purpose of facilitating understanding of the form of the connection device of both, the form of the connection device when the connection between the left and right mounting bases 30, 40 is released is shown shifted upward. ing.

  Hereinafter, the configuration of each part of the separation type weighing machine 100 will be described in more detail with reference to the drawings.

[Configuration of left and right mounting table and load cell]
First, regarding the configuration of the left and right platforms 30, 40 of the separation type weighing machine 100 of the present embodiment and the arrangement configuration of the load cells LC1, L2, L3, LC4, LC5, L6, L7, LC8 that support the left and right platforms 30, 40. State.

  When the separable weighing machine 100 of the present embodiment is viewed in plan (FIG. 3), the left platform 30 has a front end 31F and a rear end extending in the left-right direction with the right end 31R and the left end 31L extending in the front-rear direction as long sides. It is comprised by the rectangular board member which made the part 31B the short side. The right platform 40 is configured by a rectangular plate member having a right end portion 41R and a left end portion 41L extending in the front-rear direction as long sides and a front end portion 41F and a rear end portion 41B extending in the left-right direction as short sides. Yes. That is, as shown in FIG. 1 and FIG. 3, the right end portion 31 </ b> R of the left mounting base 30 and the left end portion 41 </ b> L of the right mounting base 40 respectively form opposing surfaces in the separation region 20.

  As shown in FIG. 1, in the left mounting table 30, the upper corner portion of the right end portion 31 </ b> R is chamfered, and this chamfered portion functions as a load receiving portion 32 for an object to be weighed. Further, also in the right mounting table 40, the upper corner portion of the left end portion 41L is chamfered, and this chamfered portion functions as a load receiving portion 42 for an object to be weighed. Thus, in the separation type weighing machine 100 of the present embodiment, when the pair of left and right platforms 30 and 40 are viewed from the conveyance direction 200 (FIG. 1), the left and right platforms 30 and 40 that support the object to be weighed 10. The load receiving portions 32 and 42 are inclined in a tapered shape. Therefore, when the object to be weighed 10 is placed on the load receiving portions 32 and 42 of the left and right platforms 30 and 40, the lateral load in the direction perpendicular to the conveyance direction 200 of the object to be weighed 10 is caused by the load of the object to be weighed 10 There is a problem of acting on each of the platforms 30 and 40, and a countermeasure for this problem will be described later.

  In addition, as shown in FIGS. 1, 2 and 3, in the separation type weighing machine 100 of the present embodiment, four load cells LC1, L2, L3, LC4 (the number of load cells is as shown in Modification 4 described later). 3 may be provided; the same applies hereinafter) are arranged on the installation base 25 below the left platform 30 at the four corners of the left platform 30.

  As a result, the left mounting base 30 is in a state in which the left mounting base 30 can swing sideways (that is, in a state in which the load cells LC1, L2, L3, and LC4 can tilt), and the load cells LC1, LC2, and LC3 on the installation base 25. , Supported from below by LC4.

  In addition, as shown in FIGS. 1, 2 and 3, each of the four load cells LC5, L6, L7 and LC8 (the number of load cells may be three as in Modification 4 described later; the same applies hereinafter) In the four corners of the right mounting base 40, they are arranged on the installation base 25 below the right mounting base 40.

  As a result, the right mounting table 40 is loaded with the load cells LC5, LC6, LC7 on the installation base 25 in a state in which the right mounting table 40 can swing sideways (that is, in a state where the load cells LC5, L6, L7, LC8 can tilt). , LC8 is supported from below.

[Configuration of connecting device]
Next, the configuration of the connecting device of the separation type weighing machine 100 of the present embodiment will be described.

  As described above, in the separation type weighing machine 100 of the present embodiment, the connection between the left and right platforms 30 and 40 can be formed by using a connection device, and the connection can also be released.

  As shown in FIGS. 1, 2, and 3, such a connecting device includes a pair of first connecting devices 50 </ b> F and 60 </ b> F arranged on the front side of the separation type weighing machine 100, and the rear side of the separation type weighing machine 100. And a pair of second coupling devices 50B and 60B.

  However, the second coupling devices 50B and 60B are structurally the same as the first coupling devices 50F and 60F, respectively.

  Therefore, in FIG. 1, FIG. 2, and FIG. 3, the same reference numerals are assigned to the same constituent elements of the second connecting devices 50B and 60B as those of the first connecting devices 50F and 60F. is doing. Hereinafter, a detailed description of the configuration of the first coupling devices 50F and 60F will be described, and the description of the configuration of the second coupling devices 50B and 60B will be omitted or simplified.

  As shown in FIGS. 1, 2 and 3, the first connecting device 50F is fixed to the left mount 30 and the movable body 59 connected to the front end portion 31F of the left mount 30 (however, the fixing means is illustrated). Is omitted), and an air cylinder 51 (driving device) capable of driving the movable body 59 is provided. On the other hand, as shown in FIGS. 1, 2, and 3, the first connecting device 60 </ b> F is fixed to the movable body 69 connected to the front end portion 41 </ b> F of the right mounting base 40 and the right mounting base 40 (however, the fixing means). Is omitted), and an air cylinder 61 (driving device) capable of driving the movable body 69 is provided.

  And the movable body 59 of the 1st connection apparatus 50F is provided with the plate-shaped bracket member 53, the rod-shaped link member 54, and the substantially cylindrical stopper member 55, as shown in FIG. On the other hand, as shown in FIG. 1, the movable body 69 of the first coupling device 60F includes a plate-like bracket member 63 and a rod-like link member 64 in which a substantially cylindrical stopper hole 65 is formed. As described above, in the separation type weighing machine 100 according to the present embodiment, the link member 54 and the link member 64 are arranged in each of the first coupling device 50F and the first coupling device 60F, but the present invention is not limited thereto. For example, as in Modification Example 2 described later, a link member used to connect the left and right platforms 30 and 40 may be arranged on only one side (the same applies to the second coupling devices 50B and 60B).

  As shown in FIGS. 1 and 3, in the first coupling device 50F, the bracket member 53 of the movable body 59 is coupled to the tip end portion of the piston rod 52 of the air cylinder 51 via the rotating shaft 53A, and the movable body. 59 is fixed near the center of the lower surface of the link member 54. Further, the link member 54 of the movable body 59 is connected to the front end portion 31F of the left mounting table 30 via the rotation shaft 54A in the vicinity of the right end portion 31R of the left mounting table 30 (see FIGS. 2 and 3). ). Then, as shown in FIG. 1, a thin wall portion 54B is formed at the distal end portion of the link member 54, as shown in FIG. 1, and the stopper portion 55 is provided at the central portion of the thin wall portion 54B. It has been.

  On the other hand, as shown in FIGS. 1 and 3, in the first coupling device 60F, the bracket member 63 of the movable body 69 is coupled to the tip end portion of the piston rod 62 of the air cylinder 61 via the rotating shaft 63A. The movable body 69 is fixed near the center of the lower surface of the link member 64. Further, the link member 64 of the movable body 69 is connected to the front end portion 41F of the right mounting table 40 via the rotation shaft 64A in the vicinity of the left end portion 41L of the right mounting table 40 (see FIGS. 2 and 3). ). Then, at the distal end portion of the link member 56, the lower surface is cut away to form a thin portion 64B as shown in FIG. 1, and the stopper hole 65 is formed at the center of the thin portion 64B. Has been.

  As shown in FIG. 1 (solid line), when the piston rod 62 of the air cylinder 61 is extended, the link member 64 of the movable body 69 in the first connecting device 60F causes the rotation shaft 64A to be moved based on the driving force of the air cylinder 61. Swing upward (swing movement) to the center. Then, the link member 64 is arranged in the horizontal direction in the separation region 20 between the left and right platforms 30 and 40. In this state, as shown in FIG. 1 (solid line), when the piston rod 52 of the air cylinder 51 extends, the link member 54 of the movable body 59 in the first coupling device 50F is based on the driving force of the air cylinder 51. It swings upward (swings) around the rotation shaft 54A. Then, the link member 54 is also arranged in the horizontal direction in the separation region 20. At this time, the thin portion 54B of the link member 54 overlaps the thin portion 64B of the link member 64, and the stopper portion 55 of the movable body 59 fits into the stopper hole 65 of the movable body 69.

  Although detailed illustration is omitted, also in the second coupling device 60B, when the piston rod 62 of the air cylinder 61 extends, the link member 64 of the movable body 69 rotates based on the driving force of the air cylinder 61. It swings upward (swings) about the shaft 64A. Then, the link member 64 is arranged in the horizontal direction in the separation region 20. In this state, in the second connecting device 50B, when the piston rod 52 of the air cylinder 51 extends, the link member 54 of the movable body 59 swings upward about the rotation shaft 54A based on the driving force of the air cylinder 51. Move (swing movement). Then, the link member 54 is arranged in the horizontal direction in the separation region 20. At this time, the thin portion 54B of the link member 54 overlaps the thin portion 64B of the link member 64, and the stopper portion 55 of the movable body 59 fits into the stopper hole 65 of the movable body 69.

  By the way, as shown in FIG. 1, when the object to be weighed 10 is placed on the load receiving portions 32 and 42 of the left and right platforms 30 and 40, the object to be weighed 10 is perpendicular to the conveyance direction 200 of the object to be weighed 10 by the load. A lateral load in the direction acts on each of the left and right platforms 30 and 40. That is, since the load receiving portions 32 and 42 of the left and right mounting bases 30 and 40 are inclined in a tapered shape, when the object 10 is placed on the inclined surface (tapered surface) of the load receiving portions 32 and 42, the left mounting is performed. The lateral load applied to the platform 30 and the lateral load applied to the right platform 40 act in the direction of separating the left and right platforms 30 and 40 from each other.

  Therefore, in the separation type weighing machine 100 of the present embodiment, as shown in FIGS. 1 and 3, the left-side swing of the left platform 30 based on such a lateral load (load cells LC1, LC2, LC3, LC4 is tilted to the left), and the right-side mount 40 is swayed in the right direction (the load cells LC5, LC6, LC7, LC8 are tilted to the right) according to the first coupling device 50F and the first coupling device 60F. It is blocked by the formation of a connection at the front end portions 31F and 41F of the bases 30 and 40. Such lateral vibration is also prevented by the formation of the connection at the rear end portions 31B and 41B of the left and right mounting bases 30 and 40 based on the second connection device 50B and the second connection device 60B.

  As described above, the inconvenience that the left platform 30 and the right platform 40 are moved due to the lateral load (for example, the inconvenience that the weighing platform moves so as to affect the load weighing accuracy of the object to be weighed) can be eliminated. In the type weighing machine 100, the factor that the load weighing accuracy of the object to be weighed 10 decreases can be appropriately eliminated.

  Thus, in the separation type weighing machine 100 of the present embodiment, the link mechanism (here, the link member 54 and the stopper member 55) of the movable body 59 of the first connecting device 50F and the second connecting device 50B, and the first The link mechanism (here, the link member 64 and the stopper hole 65) of the movable body 69 of the first connecting device 60F and the second connecting device 60B is used to form a connection between the left and right mounting tables 30 and 40.

  On the other hand, as shown in FIG. 1 (two-dot chain line), when the piston rod 52 of the air cylinder 51 is contracted, the link member 54 of the movable body 59 in the first connecting device 50F is based on the driving force of the air cylinder 51. It swings downward (swings) around the rotation shaft 54A. Then, the thin portion 54B of the link member 54 is separated from the thin portion 64B of the link member 64, and the stopper portion 55 of the movable body 59 is detached from the stopper hole 65 of the movable body 69. The link member 54 of the movable body 59 is erected in the vertical direction outside the separation region 20. In this state, as shown in FIG. 1 (two-dot chain line), when the piston rod 62 of the air cylinder 61 is contracted, the link member 64 of the movable body 69 in the first coupling device 60F becomes the driving force of the air cylinder 61. Based on this, it swings downward (swing movement) around the rotation shaft 64A. Then, the link member 64 of the movable body 69 is also erected in the vertical direction outside the separation region 20.

  Thereby, the front-end part of the isolation | separation area | region 20 between the left-right mounting bases 30 and 40 is open | released. Therefore, the conveyance device (coil car 70) on which the object to be weighed 10 is placed can enter the separation region 20 (see FIG. 4A described later).

  Although detailed illustration is omitted, also in the second coupling device 50B, when the piston rod 52 of the air cylinder 51 contracts, the link member 54 of the movable body 59 rotates based on the driving force of the air cylinder 51. It swings downward (swings) about the shaft 54A. Then, the thin portion 54B of the link member 54 is separated from the thin portion 64B of the link member 64, and the stopper portion 55 of the movable body 59 is detached from the stopper hole 65 of the movable body 69. The link member 54 of the movable body 59 is erected in the vertical direction outside the separation region 20. In this state, when the piston rod 62 of the air cylinder 61 contracts in the second coupling device 60B, the link member 64 of the movable body 69 swings downward about the rotation shaft 64A based on the driving force of the air cylinder 61. Move (swing movement). Then, the link member 64 of the movable body 69 is also erected in the vertical direction outside the separation region 20.

  Thereby, the rear end portion of the separation region 20 between the left and right mounting tables 30 and 40 is opened. Therefore, the conveyance device (coil car 70) on which the object to be weighed can be retracted from the separation region 20 (see FIG. 4C described later).

  In this way, in the separation type weighing machine 100 of the present embodiment, the connection at the front end portions 31F, 41F between the left and right platforms 30, 40 is released using the first connection device 50F and the first connection device 60F. Can do. In addition, the connection at the rear end portions 31B and 41B of the left and right mounting bases 30 and 40 can be released using the second connection device 50B and the second connection device 60B.

  That is, the link mechanism (here, the link member 54 and the stopper member 55) of the movable body 59 of the first coupling device 50F and the second coupling device 50B, and the movable body 69 of the first coupling device 60F and the second coupling device 60B. The link mechanism (here, the link member 64 and the stopper hole 65) is used to release the connection between the left and right mounting tables 30 and 40.

[Conveyor configuration]
Next, the configuration of the transport device of the separation type weighing machine 100 of the present embodiment will be outlined.

  As shown in FIGS. 1, 2, and 3, the device for transporting the object to be weighed 10 is a coil car that can carry a coil-shaped object to be weighed 10 and travel on a rail (not shown) extending in the transport direction 200. A self-propelled carriage 70) is provided.

  As shown in FIG. 1, the coil car 70 is configured to be able to travel in a striped groove formed in the pit 25 </ b> A in the transport direction 200, and as shown in FIGS. 2 and 3, the left and right mounting base 30. , 40 is configured to pass through the separation region 20.

  However, the configuration of such a transport device is already known (for example, see FIG. 1 of Patent Document 1). Therefore, description of the detailed configuration of the transport apparatus is omitted here.

[Operation of remote weighing machine]
Hereinafter, an operation example of the separation-type weighing machine 100 of the present embodiment will be described with reference to the drawings.

  FIG. 4 is a diagram illustrating an operation example of the separation-type weighing machine according to the embodiment of the present invention.

  Here, as an initial state of the separation type weighing machine 100, the first connection devices 50F and 60F are used to form the connection at the front end portions 31F and 41F of the left and right mounting tables 30 and 40, and the second connection Assume that the devices 50B and 60B are used to form connections at the rear end portions 31B and 41B of the left and right mounting tables 30 and 40.

  First, as shown to Fig.4 (a), the connection in the front end parts 31F and 41F of the left-right mounting bases 30 and 40 is cancelled | released using the 1st connection apparatuses 50F and 60F. Then, since the front end portion of the separation region 20 between the left and right platforms 30 and 40 is opened, the coil car 70 on which the object to be weighed 10 is placed moves in the conveyance direction 200 of the object to be weighed, so that the coil car 70 can be carried into the separation region 20 between the left and right platforms 30, 40.

  Thereafter, the coil car 70 on which the object to be weighed 10 is placed stops at the center of the separation-type weighing machine 100 (that is, the center of the left and right platforms 30 and 40 in the front-rear direction) (see FIGS. 2 and 3).

  And as shown in FIG.4 (b), by lowering | hanging the to-be-measured object 10 using the coil car 70, the to-be-measured object 10 can be mounted on the load receiving parts 32 and 42 of the right-and-left mounting bases 30 and 40. FIG. . At this time, the first connecting devices 50F and 60F are used to form the connection at the front end portions 31F and 41F between the left and right mounting tables 30 and 40 again. In this case, the second connecting devices 50B and 60B form the connection at the rear end portions 31B and 41B of the left and right mounting bases 30 and 40 while maintaining the initial state of the separation type weighing machine 100.

  As described above, in the separation type weighing machine 100 according to the present embodiment, the left platform 30 is laterally shaken in the left direction based on the lateral load of the object to be measured 10 (the left tilting of the load cells LC1, LC2, LC3, and LC4), and , The right side table 40 swings in the right direction (the right tilting of the load cells LC5, LC6, LC7, LC8), respectively, based on the first connecting device 50F and the first connecting device 60F. It is blocked by the formation of the connection at the portions 31F and 41F. Such lateral vibration is also prevented by the formation of the connection at the rear end portions 31B and 41B of the left and right mounting bases 30 and 40 based on the second connection device 50B and the second connection device 60B.

  In this state, using the load cells LC1, LC2, LC3, LC4, LC5, LC6, LC7, LC8, the load of the object to be weighed 10 placed on the load receiving portions 32, 42 of the left and right platforms 30, 40 is measured.

  Next, as shown in FIG. 4C, the object to be weighed 10 is removed from the load receiving portions 32 and 42 of the left and right platforms 30 and 40 by raising the object to be weighed 10 using the coil car 70. At this time, the connection at the rear end portions 31B and 41B of the left and right mounting bases 30 and 40 is released using the second connecting devices 50B and 60B. Then, since the rear end portion of the separation region 20 between the left and right platforms 30 and 40 is opened, the coil car 70 on which the object to be weighed 10 is loaded moves in the transport direction 200 of the object to be weighed. The coil car 70 can be carried out from the separation region 20 between the left and right mounting tables 30 and 40. In this case, the first connecting devices 50F and 60F form the connection at the front end portions 31F and 41F of the left and right mounting tables 30 and 40 while maintaining the state of the separation type weighing machine 100 of FIG. ing.

  As described above, the separation-type weighing machine 100 according to the present embodiment supports the pair of left and right mounting tables 30 and 40 facing each other across the separation region 20 and the left and right mounting tables 30 and 40 from below, Load cells LC1, LC2, LC3, LC4, LC5, LC6, LC7, LC8 capable of measuring the load of the object to be weighed on the pedestals 30 and 40 (load detectors: The number may be six) and the first connecting devices 50F and 60F that perform the formation of the connection between the left and right mounting bases 30 and 40 and the release of the connection (as in Modification 2 described later) The link member used for connecting the left and right mounting bases 30 and 40 may be connected to only one side as in the second modification device 50B and 60B (which will be described later). May be arranged And, equipped with a.

  In the separation type weighing machine 100 of the present embodiment, even when a lateral load in a direction perpendicular to the conveyance direction 200 of the object to be weighed 10 acts on the left and right platforms 30, 40 due to the load of the object to be weighed 10. Movement of the left and right platforms 30, 40 based on a lateral load is prevented by forming a connection between the left and right platforms 30, 40 based on the first coupling devices 50F, 60F and the second coupling devices 50B, 60B. Has been.

  As a result, the inconvenience that the left platform 30 and the right platform 40 move due to the lateral load (for example, the inconvenience that the weighing platform moves so as to affect the load weighing accuracy of the object to be weighed) can be eliminated. In the type weighing machine 100, the factor that the load weighing accuracy of the object to be weighed 10 decreases can be appropriately eliminated. In addition, since the left and right platforms 30 and 40 can be incorporated into the separation type weighing machine 100 while preventing the load weighing accuracy of the object to be weighed 10 from being lowered, high measurement accuracy can be obtained for load weighing of the object to be weighed by the weighing machine. This is possible and the weighing machine can be made compact.

  Further, in the separation type weighing machine 100 of the present embodiment, when the coil car 70 on which the object 10 is placed enters the separation area 20 and when the coil car 70 is retracted from the separation area 20, the first connection The connection between the left and right platforms 30 and 40 is released using the devices 50F and 60F and the second connection devices 50B and 60B. However, when the coil car 70 enters the separation region 20 between the left and right platforms 30 and 40 as in Modification 5 described later, the left and right platforms 30 and 40 are connected to each other using the first coupling devices 50F and 60F. You may just cancel. In addition, when the coil car 70 is retracted from the separation region 20 between the left and right mounting tables 30 and 40, the connection between the left and right mounting tables 30 and 40 may be simply released using the second connecting devices 50B and 60B.

  Thereby, since the left and right platforms 30 and 40 can be incorporated into the separation type weighing machine 100 while securing the conveyance path of the coil car 70, high measurement accuracy is possible for load weighing of the objects to be weighed by the weighing machine, and The weighing machine can be made compact.

  From the foregoing description, many modifications and other embodiments of the present invention are obvious to one skilled in the art. Accordingly, the above description should be construed as illustrative only, and its structure and / or function can be modified in various ways. For example, the following modifications can be illustrated.

[First Modification]
In the separation type weighing machine 100 of the present embodiment, the air cylinder is exemplified as the driving device of the first coupling devices 50F and 60F and the second coupling devices 50B and 60B, but is not limited thereto. Such driving may be hydraulic cylinder driving or motor driving.

[Second Modification]
In the separation type weighing machine 100 of the present embodiment, the right and left two link members 54 and 64 are used as the link mechanism of the first coupling devices 50F and 60F and the second coupling devices 50B and 60B. Absent. Such a link member can be substituted by using a single bar or arm. Further, the link member may be fixed by a stopper so that the link member can move smoothly.

[Third Modification]
In the separation type weighing machine 100 of the present embodiment, the first connecting device 50F and the second connecting device 50B on the left side and the first connecting device 60F and the second connecting device 60B on the right side are driven. Instead of driving, one-sided driving may be used.

[Fourth Modification]
In the separation type weighing machine 100 of the present embodiment, four load cells LC1, LC2, LC3, LC4 and four load cells LC5, LC6, LC7, LC8 are respectively provided at the lower four corners of the left and right platforms 30, 40, respectively. However, it is not limited to this. For example, such left and right mounting tables 30 and 40 may be supported by three load cells for each of the left and right mounting tables 30 and 40.

[Fifth Modification]
In the operation example of the separation type weighing machine 100 of the present embodiment, when the front end portion of the separation region 20 between the left and right platforms 30 and 40 is opened (see FIG. 4A), the second coupling devices 50B and 60B In the initial state of the separation type weighing machine 100, the connection at the rear end portions 31B and 41B of the left and right mounting bases 30 and 40 is formed, but this is not restrictive. In this case, the connection between the rear end portions 31B and 41B of the left and right mounting bases 30 and 40 may be released using the second connecting devices 50B and 60B, or the left and right mounting bases 30 and 40 as in the present embodiment. You may maintain formation of the connection in the rear-end parts 31B and 41B of each other. That is, the open state of the rear end portion of the separation region 20 is arbitrary.

  Similarly, when the rear end portion of the separation region 20 between the left and right mounts 30 and 40 is opened (see FIG. 4C), the first coupling devices 50F and 60F are separated from each other as shown in FIG. The connection at the front end portions 31F and 41F between the left and right platforms 30 and 40 is formed in the state of the weighing machine 100, but this is not a limitation. In this case, the first connection devices 50F and 60F may be used to release the connection between the front end portions 31F and 41F of the left and right mounting tables 30 and 40, or the left and right mounting tables 30 and 40 may be connected to each other as in the present embodiment. The formation of the connection at the front end portions 31F and 41F may be maintained. That is, the open state of the front end portion of the separation region 20 is arbitrary.

[Sixth Modification]
In the separation type weighing machine 100 of the present embodiment, as the link mechanisms of the first coupling devices 50F and 60F and the second coupling devices 50B and 60B, the two left and right link members 54 and 64 are raised in the same direction. Although the example which forms both connection and cancels both connection by falling to the same direction was shown, it is not restricted to this. For example, the two link members on the left and right may be configured to be connected or disconnected by raising or lowering in different directions.

  Specifically, the left link member 54 in FIG. 1 may be lowered and the right link member 64 may be lifted to release the connection between the two. In this state, the right link member 64 may be lowered and the left link member 54 may be raised to form a connection therebetween.

  INDUSTRIAL APPLICABILITY The present invention can provide a separation type weighing machine that can achieve a compact weighing machine and can appropriately maintain load weighing accuracy of an object to be weighed. Therefore, this invention can be utilized for the separation-type weighing machine which measures the load of a to-be-measured object (coiled steel strip) in the middle of the conveyance.

10 Object 20 Separation area 25 Installation base 25A Pit 25B Installation base side wall 30 Left platform 31L Left platform left end 31R Left platform right end 31F Left platform front end 31B Left platform rear end 32 Left load table 40 Right load table 41L Right table left end 41R Right table right end 41F Right table front end 41B Right table rear end 42 Right table load receiver 50F , 60F First coupling device 50B, 60B Second coupling device 51, 61 Air cylinder 52, 62 Piston rod 53, 63 Bracket member 53A, 63A Bracket member rotation shaft 54, 64 Link member 54A, 64A Link member rotation shaft 54B 64B Thin portions 59, 69 of the link member Movable body 55 Stopper member 65 Stopper hole 100 Separating type weighing machine 200 Conveying direction

Claims (5)

A pair of platforms placed opposite to each other with a predetermined separation area;
A plurality of load detectors that support each of the aforementioned table from below and that can measure the load of the object to be weighed on the table,
A connecting device for forming the connection between the tables and releasing the connection;
With
When a lateral load in a direction perpendicular to the conveying direction acts on the table by the load of the object to be weighed, the movement of the table described above based on the lateral load is prevented by the formation of the connection. Type weighing machine. A transport device that transports the object to be weighed in the transport direction;
The connection of the above-mentioned stand is canceled using the connection device when the conveyance device enters the separation region and when the conveyance device retracts from the separation region. Separate weighing machine. The coupling device further includes a movable body coupled to each of the above-mentioned tables, and a drive device that drives the movable body,
The separation type weighing machine according to claim 1 or 2, wherein the link mechanism of the movable body is used for forming the connection and releasing the connection. After releasing the connection between the pair of mounts using the connecting device, the transport device on which the object to be weighed is loaded into the separation region between the above described stands, and then using the connecting device. Form a connection between each other,
The load receiving unit is lowered using a load detector that lowers the object to be weighed using the transport device and places the object to be loaded on the load receiving unit of the pair of mounts, and supports the pair of mounts. Measure the load of the object to be weighed on
A method for measuring the load of an object to be weighed using a separate weighing machine. While lifting the object to be weighed after the load measurement using the transport device to remove the weighing object from the load receiving portion of the pair of mounting bases, to release the connection using the connecting device,
The method for measuring a load of an object to be weighed according to claim 4, wherein the transfer device carrying the object to be weighed is unloaded from the separation region.

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