JP4580906B2 - Natto filling machine - Google Patents

Description

  The present invention relates to a natto filling apparatus for filling a container with a predetermined amount of natto.

Natto is weighed with a measuring bowl and then filled into a container. Containers are sent to a container conveyor at a fixed pitch. In the conventional natto filling device, when filling natto into a container, the container conveyor is temporarily stopped, natto is dropped from the weighing basket and filled into the container, and then the container to be filled is transported to the filling section of the weighing basket. During this time, a certain amount of natto is weighed in a weighing bowl. In addition, as this kind of natto filling apparatus, patent document 1 is mentioned, for example.
JP-A-6-156425

  The above prior art has a problem that production efficiency is poor because the container conveyor is intermittently driven.

  The subject of this invention is providing the natto filling apparatus which can aim at the improvement of production efficiency.

Claim 1 of the present invention for solving the above-mentioned problems is a measuring rod unit having a plurality of measuring rods at a constant pitch, and is arranged below the measuring rod and arranged at the same pitch as the pitch of the measuring rod. In a natto filling apparatus comprising a container transport conveyor for transporting containers, and an upper shutter plate and a lower shutter plate disposed to be openable and closable on an upper surface and a lower surface of the weighing basket , the container transport conveyor is continuously constant. Driven at a speed, the weighing basket unit is reciprocally driven so as to be reciprocally movable in a direction parallel to the transport direction of the container transport conveyor, and is driven synchronously in the same direction as the container transport conveyor. By filling the container with the natto being weighed in the weighing basket, the weighing basket unit will move until the next container to be filled moves to the synchronization start position with the weighing basket unit, the container transport conveyor, and so on. Weighed a certain amount of natto the metering boxes between its moves with the flow returns to the period start position, the metering squares is driven by driving means as divided into two parts to open and close, closing the lower shutter plate, the upper shutter It is characterized in that it is closed when the plate is opened and natto is supplied, natto is supplied to the container, the lower shutter plate is opened, and the natto is opened when the upper shutter plate is closed .

  A second aspect of the present invention for solving the above-mentioned problems is that, in the first aspect, the weighing tub unit and the container transport conveyor are driven by a single drive source so that the weighing tub unit is driven back and forth. It is characterized by being continuously driven at a constant speed.

  A third aspect of the present invention for solving the above-described problems is that, in the first aspect, the weighing basket unit and the container transport conveyor are driven by separate drive sources, respectively, and the weighing basket unit is the same as the container transport conveyor. When driven in the direction, both the driving sources are driven synchronously.

  Since the container is filled with natto from the weighing basket while the container conveyor is driven at a constant speed, and a predetermined amount of natto is weighed in the weighing basket, the productivity is excellent.

  An embodiment of the natto filling apparatus of the present invention will be described with reference to FIGS. In the present embodiment, the weighing basket unit 10, the natto guide part 40 disposed above and below the weighing basket unit 10, the unit support part 50 that supports the weighing basket unit 10 and the natto guide part 40, It is comprised from the container conveyance conveyor 60 which conveys the container 61, and the drive part 70 which drives the unit support part 50 and the container conveyance conveyor 60. FIG. Next, the structure of each part will be described.

  First, the structure of the weighing basket unit 10 will be described with reference to FIGS. The measuring rods 11A and 11B are divided into two and are fixed to the measuring rod support plates 12A and 12B, respectively. This embodiment shows a case where six measuring rods 11A and 11B are provided. Actuating levers 13A and 13B are fixed to both ends of the measuring rod support plates 12A and 12B, and the operating levers 13A and 13B are connected to operating rods of air cylinders 15A and 15B fixed to the supporting frame plates 14A and 14B. Has been. Both sides of the support frame plates 14A and 14B are integrally fixed by a support frame plate 16. The operating levers 13A and 13B are slidably provided on the guide plates 17A and 17B, and the guide plates 17A and 17B are fixed to the support frame plate 16.

  A pair of upper shutter plates 20A and 20B are provided on the upper surfaces of the weighing scales 11A and 11B, respectively. It is fixed to. Air cylinders 22A and 22B are fixed to the upper shutter support plates 21A and 21B, and the air cylinders 22A and 22B are fixed to the support frame plates 14A and 14B. The upper shutter support plates 21A and 21B are slidably inserted into guide bars 23A and 23B fixed to the support frame plates 14A and 14B.

  A pair of lower shutter plates 30A, 30B corresponding to the three measuring rods 11A, 11B are disposed on the lower surfaces of the weighing rods 11A, 11B. The lower shutter plates 30A, 30B are respectively provided with a lower shutter support plate 31A, It is fixed to 32B. The operating rods of the air cylinders 32A and 32B are fixed to the lower shutter support plates 31A and 32B, and the air cylinders 32A and 32B are fixed to the support frame plates 14A and 14B. The lower shutter support plates 31A and 32B are slidably inserted into guide bars 33A and 33B fixed to the support frame plates 14A and 14B.

  Next, the natto guide part 40 will be described with reference to FIGS. A passage frame body 41 is disposed immediately above the upper shutter plates 20A and 20B, and the passage frame body 41 is fixed to a support plate 42 fixed to the support frame bodies 14A and 14B. The passage frame body 41 is supplied with natto from the inclined flange portion 44 in the hopper 43. Directly below the lower shutter plates 30A and 30B, passage cylinders 46 fixed to the support plate 45 are arranged corresponding to the measuring rods 11A and 11B, and the support plate 45 is fixed to the support frames 14A and 14B. The support plate 47 is fixed. A container 61 that is transported by a container transport conveyor 60 is disposed below the passage cylinder 46.

  Next, the structure of the unit support 50 will be described with reference to FIGS. Both sides of the support frame 14 </ b> A are fixed to an L-shaped support plate 51, and the support plate 51 is fixed to a moving plate 52. A vibrating body 53 is fixed to the moving plate 52, and a hopper 43 and an inclined flange portion 44 are mounted on the vibrating body 53. A slider 54 is fixed to the lower surface of the moving plate 52 in parallel with the conveying direction of the container 61, and the slider 54 is slidably fitted into the guide plate 55. The guide plate 55 is fixed to a base plate 58 fixed to the upper surfaces of the front plate 56 and the rear plate 57.

  Next, the structure of the container transport conveyor 60 will be described. The container 61 is held by a carrier 63 fixed to a chain 62, and the chain 62 is wound around a drive sprocket 64 and a driven sprocket 65. The conveyor drive shaft 66 of the drive sprocket 64 is driven by a drive unit 70 which will be described later. Here, the container 61 is conveyed by being held by the carrier 63 at the same pitch as the pitch of the weighing scales 11A and 11B.

  Next, the structure of the drive unit 70 will be described with reference to FIG. A rotation shaft 73 of a speed reducer 72 connected to the output shaft of the motor 71 is disposed in parallel with the conveyor drive shaft 66. An intermediate shaft 74 and a cam shaft 75 are disposed between the rotary shaft 73 and the conveyor drive shaft 66 in parallel with the conveyor drive shaft 66, and both ends of the intermediate shaft 74 and the cam shaft 75 are connected to the front plate 56 and the rear plate. 57 is rotatably supported. Sprockets 76 and 77 are fixed to the rotary shaft 73 and the intermediate shaft 74, and a chain 78 is spanned between the sprockets 76 and 77. Sprockets 79 and 80 are fixed to the intermediate shaft 74 and the conveyor drive shaft 66, and a chain 81 is stretched between the sprockets 79 and 80. Sprockets 82 and 83 are fixed to the intermediate shaft 74 and the cam shaft 75, and a chain 84 is spanned between the sprockets 82 and 83.

  A groove cam 90 is fixed to the cam shaft 75, and a cam follower 91 is fitted in the cam groove of the groove cam 90, and the cam follower 91 is rotatably supported by a lever 92. A support shaft 93 is fixed to the lower end portion of the lever 92, and the support shaft 93 is rotatably supported by a fixed portion of a device (not shown). An operating lever 94 is fixed to the lower surface of the moving plate 52, and the upper end of the lever 92 and the operating lever 94 are rotatably supported at both ends of the connecting lever 95. Here, when the groove cam 90 is rotated halfway (180 degrees), the movable plate 52, that is, the passage cylinder 46 is synchronized with the container transport conveyor 60 (at the same speed) as shown in FIGS. The container 61 is moved by three containers 61 to be conveyed by the container conveyor 60, returns to the original start position by the remaining half rotation of the groove cam 90, and corresponds to the container 61 that supplies natto.

  Next, the operation will be described. First, the operation of the weighing basket unit 10 and the natto guide unit 40 will be described. Natto placed in the hopper 43 with the lower shutter plates 30A and 30B closed and the upper shutter plates 20A and 20B opened is dropped and supplied to the measuring rods 11A and 11B from the inclined flange portion 44 and the passage frame 41. Is done. Next, the operating rods of the air cylinders 22A and 22B project to close the upper shutter plates 20A and 20B, and a predetermined amount of natto is weighed in the weighing rods 11A and 11B. Subsequently, the operating rods of the air cylinders 32A and 32B are retracted, and the operating rods of the air cylinders 15A and 15B are also retracted. When the air cylinders 32A and 32B are operated, the lower shutter plates 30A and 30B are opened. Further, when the air cylinders 15A and 15B are operated, the weighing basket support plates 12A and 12B are moved outward, and the natto storage capacity of the weighing baskets 11A and 11B is expanded. Thereby, the natto of the measuring baskets 11A and 11B is filled into the container 61 through the passage cylinder 46.

  Thereafter, the air cylinders 32A, 32B and the air cylinders 15A, 15B operate in the opposite direction to close the lower shutter plates 30A, 30B, and at the same time, the measuring rods 11A, 11B are also closed. Subsequently, the air cylinders 22A and 22B operate in the opposite direction to the above, and the upper shutter plates 20A and 20B are opened. In this way, the weighing baskets 11A and 11B are divided into two parts, and when the lower shutter plates 30A and 30B are opened to fill the container 61 with the natto in the weighing baskets 11A and 11B, the weighing baskets 11A and 11B are opened to store the natto. Since the volume is increased, there is no resistance to the weighing rods 11A and 11B, the natto falls smoothly, and the sticking to the weighing rods 11A and 11B is prevented.

  Next, the operation of the drive unit 70, which is a feature of the present invention, will be described. When the motor 71 rotates and the sprocket 76 rotates in the direction of arrow A, the intermediate shaft 74 rotates in the same direction via the chain 78 and the sprocket 77. The conveyor drive shaft 66 also rotates in the same direction via the sprocket 79, the chain 81, and the sprocket 80, and the cam shaft 75 rotates in the same direction via the sprocket 82, the chain 84, and the sprocket 83. That is, the conveyor drive shaft 66 and the cam shaft 75 rotate in the same direction. When the conveyor drive shaft 66 is rotated in the direction of arrow A, the container 61 is conveyed in the direction of arrow B by the chain 62.

  When the cam shaft 75 rotates, the lever 92 swings along the cam groove of the groove cam 90 with the support shaft 93 as a fulcrum. The movement of the lever 92 is transmitted to the weighing pad unit 10 and the natto guide part 40 (the passage frame body 41, the hopper 43, and the inclined pad part 44) via the connecting lever 95, the operating lever 94, the moving plate 52, and the vibrating body 53. . As described above, the half-rotation of the groove cam 90 causes the weighing basket unit 10 and the natto guide portion 40 to be driven in the same direction and at the same speed in synchronization with the container transport conveyor 60. With the remaining half rotation of the groove cam 90, the weighing basket unit 10 and the natto guide portion 40 return to their original positions.

  While the weighing basket unit 10 moves in synchronization with the container transport conveyor 60 by half rotation of the groove cam 90, the container 61 is filled with natto that has been weighed in the weighing baskets 11A and 11B. That is, as explained in the section of the operation of the weighing basket unit 10 and the natto guide unit 40, the upper shutter plates 20A and 20B and the lower shutter plates 30A and 30B are closed, and predetermined natto is weighed in the weighing baskets 11A and 11B. The lower shutter plates 30 </ b> A and 30 </ b> B are opened while the weighing basket unit 10 moves in synchronization with the container transport conveyor 60 as described above. In the present embodiment, natto is filled into six containers 61 at a time from the six measuring rods 11A, 11B through the passage cylinder 46. Accordingly, while the weighing basket unit 10 and the container transport conveyor 60 move synchronously, as shown in FIGS. 4 (a) to 4 (b), 6 passage cylinders 46A, 46B,. The individual containers 61A, 61B,... 61F are filled with natto.

  With the remaining half rotation of the groove cam 90, the weighing basket unit 10 and the natto guide portion 40 return to their original positions. That is, the passage cylinders 46A, 46B,... 46F are in the state shown in FIG. In this way, a predetermined amount of natto is weighed in the weighing baskets 11A and 11B while the weighing basket unit 10 and the natto guide unit 40 return to their original positions. That is, as explained in the section of the operation of the weighing basket unit 10 and the natto guide section 40, the lower shutter plates 30A and 30B are closed, the upper shutter plates 20A and 20B are opened, and natto is supplied to the weighing baskets 11A and 11B. Later, the upper shutter plates 20A and 20B are closed, and a predetermined amount of natto is weighed in the weighing baskets 11A and 11B. In this case, the container transport conveyor 60 rotates at a constant speed. Therefore, the passage cylinders 46A, 46B,... 46F are moved as shown in FIG. 4C while the containers 61G, 61H,. Return to the original sync position. By repeating this series of operations, natto is continuously supplied to the container 61.

  Thus, while the container transport conveyor 60 is driven at a constant speed, the container 61 is filled with natto from the weighing baskets 11A and 11B, and a predetermined amount of natto is weighed in the weighing baskets 11A and 11B. Excellent in properties.

In the above embodiment, the weighing boxes 11A, 11B has been described the case of providing six, it has good long 1 or more. To synchronously drive the or weighing squares unit 10 and the container conveyor 60, although using one motor 71, respectively using a separate motor weighing squares unit 10 and the container conveyor 60, from the weighing boxes unit 10 You may make it drive both motors synchronously when filling the container 61 with natto.

It is a perspective view which shows schematic structure of one Embodiment of the natto filling apparatus of this invention. It is a longitudinal cross-sectional view. It is a top view of a weighing rod unit. It is explanatory drawing which shows the relationship between a measuring bowl and a container.

Explanation of symbols

10 weighing rod unit 20A, 20B upper shutter plate 30A, 30B lower shutter plate 40 natto guide portion 41 passage frame 43 hopper 44 inclined rod portion 46 (46A, 46B... 46F) passage cylinder 50 unit support portion 52 moving plate 53 Vibrating body 54 Slider 55 Guide plate 60 Container conveying conveyor 61 (61A, 61B...) Container 70 Driving unit 71 Motor 73 Rotating unit 75 Cam shaft 78, 81, 84 Chain 90 Groove cam 91 Cam follower 94 Actuating lever 95 Connecting lever

Claims (3)

A weighing rod unit having a plurality of weighing rods at a constant pitch, a container transport conveyor disposed below the weighing rod and carrying containers arranged at the same pitch as the weighing rod, an upper surface of the weighing rod, and In the natto filling apparatus comprising an upper shutter plate and a lower shutter plate disposed on the lower surface so as to be openable and closable , the container transport conveyor is continuously driven at a constant speed, and the weighing bowl unit is configured to be the container transport conveyor. The reciprocating drive is provided so as to be able to reciprocate in a direction parallel to the transport direction of the container, and the container is filled with natto that is driven synchronously in the same direction as the container transport conveyor and is measured in the weighing basket, The weighing basket unit returns to the synchronization start position until the container to be filled moves to the synchronization start position with the weighing basket unit, the container transport conveyor, and the movement Ryomasu to the metering a certain amount of natto, the metering squares is driven by driving means as divided into two parts to open and close, when the lower shutter plate is closed, the upper shutter plate natto is supplied open The natto filling apparatus is characterized in that the natto filling device is closed, the natto is supplied to the container, the lower shutter plate is opened, and the natto is opened when the upper shutter plate is closed .   The natto according to claim 1, wherein the weighing basket unit and the container conveyor are driven by a single drive source so that the weighing basket unit is reciprocated and the container conveyor is continuously driven at a constant speed. Filling equipment.   The weighing basket unit and the container transport conveyor are driven by separate drive sources, respectively, and when the weighing basket unit is driven in the same direction as the container transport conveyor, both the drive sources are driven synchronously. The natto filling apparatus according to claim 1.

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