JP5615524B2 - Weight inspection device - Google Patents

Description

  The present invention relates to a weight inspection apparatus that measures the weight of an article while being transferred on a conveyor.

  Conventionally, for example, a weighing machine such as a combination weigher, a packaging machine, and an inspection device are used in a production line of a factory that weighs and packages articles such as potato chips and candy within a predetermined weight range and ships them to the market. (X-ray foreign matter detection device, metal detector, weight inspection device, etc.), a sorting device, and a boxing device are provided.

  In such a production line, the inspection apparatus performs processing corresponding to a predetermined inspection while conveying the articles conveyed from the packaging machine or the like by a conveyor, and based on the processing result, for example, it is a non-defective product or a defective product. The determination result (inspection result) is passed to the sorting device, and in the sorting device, the articles determined as defective are excluded from the conveyor, and the articles determined as non-defective are downstream. Configured to be sent to other devices.

  Among the inspection devices, some weight inspection devices include a weighing conveyor for measuring the weight while conveying an article and a feeding conveyor for feeding the article to the weighing conveyor (for example, Patent Document 1). , 2).

  In addition, an electrical component storage box with an operation indicator for displaying the operation of the weight inspection device and inspection results is attached to the left or right hand side with respect to the conveying direction of both conveyors, thereby achieving compactness. There are things with different configurations. In the case of this configuration, the operation indicator is an electrical component storage box so that the front of the operation indicator faces the both conveyors so that the operator can see the articles conveyed on both conveyors and the operation indicator from the same side. Is attached. A control device is stored in the electrical component storage box, and the control device is connected to a conveyor driving motor of a feeding conveyor, a weighing conveyor, or the like by a wiring cable.

JP-A-9-304165 JP-A-6-26916

  The weight inspection apparatus as described above is usually attached to an electrical component storage box having an operation indicator on the upper part so that a feeding conveyor and a weighing conveyor are arranged on the front side of the operation indicator in the manufacturing factory. The assembled state is then shipped to a dealer or customer in this assembled state.

  A weight inspection apparatus sold in a store may have to change the conveyance direction of an article to the opposite direction depending on the production line in which it is used. In some cases, it is necessary to change the conveyance direction of the article in the reverse direction by changing the production line at the customer site.

  Thus, when the conveyance direction of articles | goods must be changed, there exist the method of removing an electrical equipment storage box and attaching to an opposite side, and the method of removing a measurement conveyor and a feeding conveyor and changing a position. When the electrical component storage box is attached to the opposite side, work such as wiring removal and reconnection is also required. In addition, when the positions of the weighing conveyor and the feeding conveyor are switched, the work of removing and reconnecting the wiring, and the height of the feeding surface of the weighing conveyor and the feeding conveyor should be the same level. Height adjustment work is required. Furthermore, in this case, it is necessary to perform a re-inspection to confirm that a predetermined weighing accuracy is obtained. Either way, it is difficult for dealer employees and customers to do the work, and the employees of the manufacturing plant do business trips. It takes time and requires several hours of work.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a weight inspection apparatus that can easily and quickly change an article conveyance direction.

In order to achieve the above object, a weight inspection apparatus according to the present invention is arranged adjacent to a downstream side of an infeed conveyor that conveys an article in one direction and is conveyed from the infeed conveyor. A weight inspection apparatus comprising: a weighing conveyor that conveys the article in one direction; and a weighing unit that supports the weighing conveyor and measures the weight of the article on the weighing conveyor;
A support plate that supports the weighing unit and the feeding conveyor in a state of supporting the weighing conveyor is detachably attached to a gantry by an attaching means.

  According to this configuration, since the weighing conveyor, the weighing unit, and the feeding conveyor are supported by one support plate, the conveyance direction of the article can be changed simply by removing the support plate from the gantry and changing the direction 180 degrees. The direction can be reversed, and the conveyance direction of the article can be easily changed in a short time.

  In addition, an electrical component storage box having an operation indicator for displaying the measurement result of the weighing unit attached to the upper part is in the vicinity of the feeding conveyor and the weighing conveyor, and the operation indicator is the feeding conveyor and Arranged to face the feeding conveyor and the conveyor side of the weighing conveyor above the weighing conveyor, the electrical component storage box includes an upper casing portion in the upper portion and a lower casing portion in the lower portion. And the upper housing part may be configured to be folded along the lower housing part.

  According to this configuration, even when the electrical component storage box is disposed in the vicinity of the feeding conveyor and the weighing conveyor, the electrical component storage box is folded so that the upper housing portion is along the lower housing portion. By doing so, it is possible to easily change the direction of the support plate for reversing the transport direction.

  The present invention has the above-described configuration, and produces an effect that, in the weight inspection apparatus, an operation of changing the article conveyance direction can be performed easily and in a short time.

It is a perspective view which shows the external appearance of the weight inspection apparatus of embodiment of this invention. It is a top view of the weight inspection apparatus of the embodiment of the present invention. (A) is the side view of the weight inspection apparatus seen from the arrow A direction in FIG. 1, (b) is the side view of the weight inspection apparatus seen from the arrow B direction in FIG. It is a perspective view which shows the method to change the conveyance direction of the weight inspection apparatus of embodiment of this invention.

  Hereinafter, preferred embodiments 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 the drawings, and redundant description thereof is omitted. Further, the present invention is not limited to the following embodiment.

(Embodiment)
FIG. 1 is a perspective view showing an appearance of a weight inspection apparatus according to an embodiment of the present invention. In this figure, the conveyor belt 30 (see FIG. 4) of the weighing conveyor Cw is not shown. FIG. 2 is a plan view of the same weight inspection apparatus, in which the conveyor belts 70 and 30 (see FIG. 4) of the feeding conveyor Cs and the weighing conveyor Cw are not shown. 3A is a side view of the weight inspection apparatus viewed from the direction of arrow A in FIG. 1, and FIG. 3B is a side view of the weight inspection apparatus viewed from the direction of arrow B in FIG. FIG. 4 is a perspective view showing a method for changing the transport direction of the same weight inspection apparatus.

  The weight inspection apparatus according to the present embodiment includes a gantry 1, a surface plate (support plate) 2 attached to the gantry 1, a feed conveyor Cs, a weighing conveyor Cw, a weighing unit 6 (FIG. 3), and an article. A detection sensor 25 and an electrical component storage box 10 are provided.

  In this weight inspection apparatus, for example, an article that is an object to be inspected that has been conveyed from a conveyor (not shown) arranged in front of the feeding conveyor Cs to the feeding conveyor Cs is transferred from the feeding conveyor Cs to the weighing conveyor Cw. It is transferred to. It is detected by the article detection sensor 25 that the article has been transferred from the feed conveyor Cs to the weighing conveyor Cw, and the weighing unit 6 that supports the weighing conveyor Cw when the article has been transferred to a predetermined position on the weighing conveyor Cs. The weight is measured by the weight sensor 63 (FIG. 3), and a weight signal from the weight sensor 63 is input to the control device 111.

  An operation indicator 110 is attached to the upper part of the front surface of the electrical component storage box 10 so as to be fitted therein, and a control device 111 and drive circuits for the motors of the feeding conveyor Cs and the weighing conveyor Cw (not shown). Etc.) are stored. The detection signal from the article detection sensor 25 and the weighing signal from the weight sensor 63 are input to the control device 111.

  The control device 111 is composed of, for example, a microcomputer, and controls the operation of the weight inspection device, for example, controls the driving and stopping of the feeding conveyor Cs and the weighing conveyor Cw via a motor driving circuit (not shown). Do. Further, the detection signal of the article detection sensor 25 and the measurement signal of the weight sensor 63 are input to the control device 111. Further, the control device 111 determines, based on the weight of the article weighed by the weight sensor 63, which weight range the predetermined weight range belongs to, and the determination result is the actual weight. The data is transmitted to a sorting device arranged at the subsequent stage of the inspection device. The control device 111 inputs a signal from the operation indicator 110 and outputs a signal such as data to be displayed on the display panel 110 a to the operation indicator 110.

  The operation indicator 110 is configured by using, for example, a touch panel display and the like, and is an input means for performing operations such as operation start and operation stop of the weight inspection apparatus, and articles that are measurement results input from the control device 111. Display means for displaying the weight value and the like on the display panel 110a.

  Hereinafter, the structure of the weight inspection apparatus will be described in detail.

  A surface plate 2 is detachably attached to the gantry 1 with bolts 2B as attachment means. A feed conveyor Cs is attached to the surface plate 2, and a weighing unit 6 that supports the weighing conveyor Cw is attached. An electrical component storage box 10 is also attached to the gantry 1.

  The gantry 1 connects the four leg portions 11 to 14, the connecting portions 15 and 16 connecting the two leg portions, the connecting portion 15 and the connecting portion 16, and the surface plate 2 is attached 2. And horizontal frames 17 and 18 of the book. Further, one of the horizontal frames 17 is provided with arms 21 and 22, and a protection bar-like member 19 is attached to the distal ends of the arms 21 and 22. Similarly, the arms 23 and 24 are also attached to the other horizontal frame 18, and a protective rod-like member 20 is attached to the tips of the arms 23 and 24. An article detection sensor 25 using a photoelectric sensor is attached to the rod-shaped members 19 and 20 in order to detect that an article has been transferred from the feeding conveyor Cs to the weighing conveyor Cw. Further, the gantry 1 has a frame 27 that connects the leg portions 12 and 14, and the electrical component storage box 10 is fixed on the frame 27.

  As shown in FIG. 2, the weighing conveyor Cw includes a weighing conveyor body 3, a motor 4, and a weighing conveyor receiver 5.

  The weighing conveyor body 3 includes a driving roller 33 to which the rotation of the motor 4 is transmitted via a timing belt or the like, a driven roller 34, conveyor frames 31 and 32 that rotatably support the driving roller 33 and the driven roller 34, The conveyor belt 30 (FIG. 4) stretched around the driving roller 33 and the driven roller 34 is provided. Reference numeral 41 denotes a timing belt cover.

  The weighing conveyor receiving portion 5 includes four side plates 51 to 54. A hook portion 51 a (FIG. 1) is provided on the upper portion on one end side of the side plate 51 on the front surface side, and a pin 35 projecting from one end portion of the conveyor frame 31 is engaged with the hook portion 51 a. The upper side plate and the other end of the conveyor frame 31 are fixed by a patch lock 37, whereby the side plate 51 and the conveyor frame 31 are fixed. Similarly, the hook portion provided on the upper end of one side of the side plate 52 on the back side is engaged with the pin 36 projecting from the conveyor frame 32, and the other end side is fixed by the patchon lock 38. 52 and the conveyor frame 32 are fixed. The motor 4 is fixed inside the side plate 52. The weighing conveyor main body 3 is attached to the weighing conveyor receiving portion 5 as described above. The lower ends of the side plates 53 and 54 are bent to form bottom plate portions 53a and 54a, respectively.

  The feed conveyor Cs is a conveyor for feeding articles to the weighing conveyor Cw, and includes a feed conveyor body 7, a motor 8, and a feed conveyor receiving portion 9.

  The feeding conveyor body 7 has the same configuration as the weighing conveyor body 3, and includes a driving roller 73, a driven roller 74, a driving roller 73, and a driven roller 74 to which the rotation of the motor 8 is transmitted via a timing belt or the like. Conveyor frames 71 and 72 that are rotatably supported, and a conveyor belt 70 (FIG. 4) stretched around a drive roller 73 and a driven roller 74 are provided. Reference numeral 81 denotes a timing belt cover.

  The feeding conveyor receiving unit 9 has the same configuration as the weighing conveyor receiving unit 5 and includes four side plates 91 to 94. In addition, the feed conveyor body 7 is attached to the feed conveyor receiver 9 in the same manner as in the weighing conveyor receiver 5 and the weighing conveyor body 3. That is, the pin 75 of the conveyor frame 71 is engaged with the hook portion of the side plate 91 on the front side, and the side plate 91 and the conveyor frame 71 are fixed by fixing the patchon lock 77, and the hook portion of the side plate 92 on the back side is fixed. While the pins 76 of the conveyor frame 72 are engaged, the side plate 92 and the conveyor frame 72 are fixed by fixing the patch lock 78. The motor 8 is fixed inside the side plate 92. Further, the lower ends of the side plates 93 and 94 are bent to form bottom plate portions 93a and 94a, respectively.

  Next, as shown in FIG. 3A, in the weighing conveyor Cw, each of the bottom plate portions 53a and 54a of the weighing conveyor receiving portion 5 is fixed to the two load receiving portions 64 of the weighing unit 6 with bolts 66 (FIG. 2). Has been.

  The weighing unit 6 has four weight sensors 63 each consisting of a load cell attached to the inside of the casing 61, and the weight sensor 63 detects four loads on the four load receiving portions 64. A load receiving bracket (not shown) for connecting the individual load receiving portions 64 is provided, and this load receiving bracket is attached to the weight sensor 63. The casing 61 is fixed to a metal plate 62 provided with holes through which the four cargo receiving portions 64 are inserted, and the metal plate 62 is fixed to the surface plate 2 with two bolts 65 (see also FIG. 2). ). As shown in FIG. The surface plate 2 is provided with a large opening 2c for inserting the measuring unit 6 from above.

  Next, as shown in FIG. 3B, the feed conveyor Cs includes two bottom plate portions 93a and 94a, with the bottom plate portions 93a and 94a of the feed conveyor receiving portion 9 floating from the surface plate 2. The bolt 90 is fixed to the surface plate 2.

  With the above configuration, the weighing conveyor Cw is supported by the weighing unit 6, and the weighing unit 6 is fixed to the surface plate 2. A feed conveyor Cs is fixed to the surface plate 2.

  The surface plate 2 is fixed to the horizontal frames 17 and 18 of the gantry 1 by five bolts 2B (FIG. 4), and can be detached from the gantry 1 by removing the ten bolts 2B. The surface plate 2 is provided with handle portions 2a and 2b in which both edge portions facing in the width direction of the conveyors Cs and Cw are bent downward.

  In the electrical component storage box 10, the upper upper housing part 10 a and the lower lower housing part 10 b are connected by two hinges 101, and the lower housing part 10 b is fixed on the frame 27 of the gantry 1. ing. And the both side surfaces of the upper part of the lower housing | casing part 10b are being fixed to the two attachment members 28 attached to one rod-shaped member 20 with the volt | bolt 102. FIG. Further, both side surfaces of the lower portion of the upper casing portion 10a are fixed to the two mounting members 28 with bolts 103. When the bolts 103 are removed, the upper casing portion 10a is only connected to the lower casing by the two hinges 101. As shown in FIG. 4, the upper casing portion 10a can be rotated to be in a state along the lower casing portion 10b.

  Further, a hole (not shown) provided on the front surface side of the lower housing portion 10b and a lateral hole 18a (FIG. 4) provided in the center of the horizontal frame 18 are a conduit (preca tube) 104 (FIG. 3). The wiring cables 105 (FIG. 4) and the like connected to the motors 4 and 8 and the weight sensor 63 are connected to the control device 111 in the electrical component storage box 10 through the conduit 104. Here, the wiring cables connected to the motors 4 and 8 are drawn out below the surface plate 2 through holes provided in the surface plate 2, and the wiring cables connected to the weight sensor 63 are connected to the weighing unit 6. The wiring cables are bundled under the center of the surface plate 2, and further bundled at the center of the surface plate 2, and further connected to the control device 111 in the electrical component storage box 10 through the conduit 104. Yes.

  In the weight inspection apparatus configured as described above, an operation in the case where the conveyance direction of the article is changed in the reverse direction will be described.

  First, the bolts 103 that fix both side surfaces of the lower portion of the upper housing portion 10a of the electrical component storage box 10 are removed, and the upper housing portion 10a is rotated to move along the lower housing portion 10b, as shown in FIG. Make it in a state of being allowed to. As a result, the electrical component storage box 10 is folded.

  Next, all the bolts 2B fixing the surface plate 2 are removed, and the surface plate 2 is lifted upward by holding the handle portions 2a, 2b of the surface plate 2, and after turning 180 degrees, the horizontal frame 17 , 18 and attach all the bolts 2B.

  Thereafter, the upper housing portion 10a of the electrical component storage box 10 is placed on the lower housing portion 10b, and the two bolts 103 are attached.

  As described above, the work for changing the conveying direction of the article is completed. This operation can be performed in about several minutes to 10 minutes, and the operation time can be greatly shortened. In addition, since the feeding conveyor Cs and the weighing conveyor Cw are integrally changed in direction, it is not necessary to adjust the height of the conveying surface between the feeding conveyor Cs and the weighing conveyor Cw, and the weighing accuracy needs to be re-inspected. Absent.

  In the present embodiment, since the weighing conveyor Cw and the weighing unit 6 and the feeding conveyor Cs are supported on one surface plate 2, it is only necessary to remove the surface plate 2 from the gantry 1 and change the direction 180 degrees. The conveyance direction of the article can be reversed, and the conveyance direction of the article can be changed easily and in a short time. In addition, since the work is easy, it can be done by employees and customers of the store.

  Furthermore, in this embodiment, the upper housing | casing part 10a is retracted below by making the electrical equipment storage box 10 arrange | positioned in the vicinity of the feeding conveyor Cs and the measurement conveyor Cw into the folded state shown in FIG. And the direction change of the surface plate 2 can be easily performed.

  In this embodiment, in order to make it easier to hold the surface plate 2, the surface plate 2 is bent to provide the handle portions 2 a and 2 b, but a handle may be attached to the surface plate 2. When the surface plate 2 is bent and the handle portions 2a and 2b are provided as in the present embodiment, it contributes to the improvement of the strength of the surface plate 2.

  Moreover, in this embodiment, although the surface plate 2 was fixed with the volt | bolt 2B, it is not restricted to this. For example, you may make it fix the surface plate 2 to the mount frame 1 using a Patchon lock.

  The article detection sensor 25 may also be configured to be fixed to the surface plate 2 via an attachment member or the like. The article detection sensor 25 is attached so as to detect articles on a substantially boundary between the feeding conveyor body 7 and the weighing conveyor body 3, but by fixing the article detection sensor 25 to the surface plate 2, the feeding conveyor Even if the transport direction is changed when the main body 7 and the weighing conveyor body 3 are different in length, it is not necessary to change the attachment position of the article detection sensor 25. In other words, if the article detection sensor 25 is not fixed to the surface plate 2, the attachment position of the article detection sensor 25 can be changed by changing the transport direction when the lengths of the feeding conveyor body 7 and the weighing conveyor body 3 are different. Must be changed. In the present embodiment, the article detection sensor 25 is not fixed to the surface plate 2, but the lengths of the feeding conveyor body 7 and the weighing conveyor body 3 are equal, and therefore the article detection sensor 25 of the article detection sensor 25 is changed even if the conveyance direction is changed. There is no need to change the mounting position.

  Note that when the transport direction is reversed, the wiring cable 105 is twisted. If this causes a load on the connection portion of the wiring cable 105 and a problem such as poor connection occurs, connect the connector in the middle of the wiring cable 105. It may be configured to be connectable and disconnectable. Or you may make it reduce the load to the connection part of the wiring cable 105 by using a highly flexible cable.

  INDUSTRIAL APPLICATION This invention is useful as a weight inspection apparatus etc. which can perform the change operation | work of the conveyance direction of articles | goods easily and in a short time.

Cs Feeding conveyor Cw Weighing conveyor 1 Base 2 Surface plate (support plate)
2B Bolt 6 Weighing unit 10 Electrical component storage box 10a Upper housing portion 10b Lower housing portion 25 Article detection sensor 28 Mounting member 101 Hinge 102, 103 Bolt 110 Operation indicator 110a Display panel

Claims (4)

An infeed conveyor that conveys articles in one direction, a weighing conveyor that is arranged adjacent to the downstream side of the infeed conveyor, and that conveys articles conveyed from the infeed conveyor in the one direction, and the weighing conveyor And a weighing unit comprising a weighing unit for weighing the article on the weighing conveyor,
A support plate that supports the weighing unit and the feeding conveyor in a state of supporting the weighing conveyor is detachably attached to a gantry by attachment means ,
The weight inspection apparatus , wherein the support plate is detachably attached to the gantry by the attachment means even if the orientation of the support plate is changed by 180 degrees in order to change the conveyance direction of the article in the reverse direction . The article detection sensor for detecting an article transferred from the feeding conveyor to the weighing conveyor on a substantially boundary between the feeding conveyor and the weighing conveyor is fixed to the support plate. Weight inspection device. The gantry has two parallel horizontal frames extending in the conveying direction of the article,
  The weight inspection apparatus according to claim 1, wherein the support plate is detachably attached to the two horizontal frames. The gantry has two parallel horizontal frames extending in the conveying direction of the article,
The support plate is detachably attached to the two horizontal frames,
The weighing unit is disposed below the support plate and between the two horizontal frames,
An electrical component storage box in which an operation indicator for displaying the measurement result of the weighing unit is attached to the upper portion, and the operation indicator is located above the feeding conveyor and the weighing conveyor, and is connected to the feeding conveyor and the weighing conveyor. The weight inspection apparatus according to claim 1, wherein the weight inspection apparatus is fixed to the frame so as to face a conveyor side.

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