JPH057552Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The disclosed technology belongs to the technical field of the structure of a device that performs semi-automatic weighing of products such as potatoes to a set weight.

<Summary of the gist> This invention is a semi-automatic type combination weighing device for products such as potatoes, etc., in which multiple heads are arranged horizontally. There is a weighing section in front of the weighing section, and in front of it there is a carry-out section.For each head of the pool section and weighing section, there are a plurality of supports for the product, and from the pool section to the weighing section, and from the weighing section to the carrying-out section. A combination weighing device in which a forwarding body for conveying products in a walking beam manner is interposed and protrudes upward from the support body during operation, and is linked to an elevating device and a horizontal advance/retreat device so as to perform a forward feeding action. In particular, the pool part and the measuring part support bodies have a large number of plate-like panels each having a concave top surface and are provided vertically, and the support bodies are provided between the plate-like panels of these supports. A concave shape is also formed on the upper surface of the plate-like panel of the forwarding body, and the vertical plate-like panel of the unloading section is connected to the frame via an elevating device and a horizontal advance/retreat device, so that it can be freely advanced. This invention relates to a combination weighing device in which the tilting state of the device can be selectively raised or lowered by a turning and raising device.

<Prior art> As is well known, in the secondary market, many products such as foodstuffs are traded in supermarkets, etc., and these various products are generally packaged in packaging or bags. However, in many cases, products are packed in packages, bags, etc. by a set weight rather than the number of items, and are traded in a kind of standard manner.

Regarding products stored in package cages and bags, it is of course necessary to avoid the actual weight being less than the set weight displayed, but on the other hand, if the actual weight is greater than the set weight, the supplier must Therefore, it is desirable to store products with the actual weight according to the set weight.In order to deal with this, so-called so-called Combination weighing devices are becoming widely used.

Therefore, when using the seed combination weighing device, it is easy to handle the sliding of relatively small cluster-like products such as peanuts and potato chips in the internal mechanism of the device, and it is easy to handle the falling of products in the internal mechanism of the device. It is convenient to use automatic processing for reasons such as the fact that normal distribution is likely to be taken in the measurement of The process is combined from the hopper to the corresponding weighing hopper, and after weighing, the lower collecting chute is connected to the packaging device.

On the other hand, for block-shaped products such as potatoes and peanuts, their size is larger than that of peanuts, and the process of removing them from falling may cause significant damage to the product or reduce the inertial force. Due to the size, there is a risk of damaging the mechanical parts of the device, and processes such as size alignment are often required, which inevitably requires manual intervention. Unlike the fully automatic type combination weighing device, we had to use a semi-automatic type due to the placement of the workers doing the manual work, and each head was arranged horizontally due to the position of the workers. As a mechanism of the combination weighing device, a weighing section is arranged adjacent to the tip of the pool section on the front side, and an ejection section for taking out the product to the packaging process etc. is further provided at the tip. ing.

Therefore, this kind of semi-automatic type combination weighing device that handles block-shaped products such as potatoes is different from the fully automatic type combination weighing device mentioned above.
In order to prevent damage to the product or equipment, it is not possible to use the sliding method, and therefore, as a matter of course, a horizontal movement process is required, so it is not possible to transfer the product from the pool section to the weighing section while it is still in place. There is a mode that uses a kind of walking beam method.

An example of such a semi-automatic walking beam combination weighing device for block-shaped large-sized products such as potatoes and potatoes is the invention described in Japanese Patent Application Laid-Open No. 118163/1983, which has a pool part and a weighing part. A large number of advancing bodies of walking beams that move up and down and move back and forth are interposed between a number of supports arranged in a horizontal direction, and a set target is determined by selecting the weight detected by the weighing section A horizontal feed-out action is applied to the forwarding bodies of each head selected to match the weight value or to have a minimum excess amount, so that the products in the weighing section are transferred to the conveying section, and the products in the pool section are transferred. is arranged to be forwarded to the measuring section in an interlocked manner.

<Problem to be solved by the invention> However, in the above-mentioned conventional semi-automatic type combination weighing device, since the upper surface of the support and the advance member is flat, the weight of the potatoes, etc. The product is unstable and easily rolls and transfers to the next head during loading or forwarding operations, and as mentioned above, the product must be fed manually. Although there is a need for this to be done, there is little point in manually transporting the weighed products from the delivery section to the next stage, such as a belt conveyor, since the combination weighing has already been completed, and this reduces work efficiency. Due to disadvantages such as deterioration of efficiency, reduction in efficiency, and countermeasures for labor saving, it is recommended to use an inclined chute with the unloading section fixed (for example,
95230) to discharge the product from the weighing section to a belt conveyor, etc., because the difference in slope between the base and tip of the inclined chute is large, the belt conveyor for the next stage of conveyance is It has to be set low, and there is a problem in that the overall system is not compatible.

In addition, in the case of using such a fixed inclined chute, in order to ensure the baton-touching of the product from the weighing section to the unloading section, it is necessary to take a large lifting stroke of the forwarding body, making the entire device larger and more compact. I had the inconvenience of going against the grain.

The purpose of this invention is to solve the problems of the semi-automatic combination weighing device based on the above-mentioned conventional technology, in which each head is placed horizontally, and the weighing device weighs a set weight of relatively large products such as block-shaped peas and potatoes. This is a technical issue that should be addressed, and the entire device can be made more compact.Moreover, the work from weighing to the next stage packaging can be automatically and accurately carried out, maintenance and inspection are easy, and in addition, the product It is an object of the present invention to provide an excellent combination weighing device that is beneficial to the field of weighing technology in the distribution industry by preventing damage to the device or equipment.

<Means/effects for solving the problem> In order to solve the above-mentioned problem, the structure of this invention, which is based on the scope of the above-mentioned utility model registration claim, is to solve the above-mentioned problem. For example, a worker places block-shaped products such as oysters and potatoes in the same size as possible on each support of a large number of vertical plate-like panels with concave top surfaces in the pool area. By pressing the start button, the advancing member of the plate-like panel, which is also vertical and has a concave top surface and is provided between the supporting member and each supporting member of the measuring section adjacent to the supporting member, is moved to each head. The product placed on the support of the pool section is moved upwards and forwards by being integrally connected to a lifting device such as an air cinder and a horizontal advance/retreat device such as an air cylinder, which are provided separately for each unit. The products are transferred all at once to the top surface of the concave plate-like panel in a stable posture, and the products are placed and supplied again into the empty pool area.
During that time, the weight of each head is measured by a weight detection device such as a load cell installed through the support of the weighing section, and the detected weight is input to a microcomputer and calculated, resulting in the set target weight value. When a combination of heads with weights that are equal or have the minimum excess weight is determined, the advancing body of each head selected for the combination is raised by the lifting device and moved into a walking beam shape by the horizontal advancement device. During this time, the next product is placed in the empty part of the head selected for the combination weighing in the pool section, and only the product in the head that participated in the combination selection of the weighing section is transferred to the unloading section. At the unloading section, a vertical plate-like panel receives the products that have been combined and weighed, and is erected at an angle by a swivel hoisting device connected to the frame.The state of the inclination can be selected to be slow or fast, allowing the products to be smoothly transferred to the conveyor. This technology takes technical measures to make the entire device more compact by transporting it to a package, etc., and transferring it to the next stage, such as a package.

<Example> Next, an example of this invention will be described below based on the drawings.

Reference numeral 1 denotes a semi-automatic horizontally arranged combination weighing device which is the gist of this invention. An operation panel 3 is located near one side of the box-shaped frame 2 on which the rollers that can be moved and the feet for setting the machine in place are installed.
is provided with a numeric keypad, a digital display, etc., and between the side panels 4, a large number of heads 5, for example 10 heads, etc. are provided in the horizontal direction.
Each head 5 has a pool part 6 of the supply part on the front side, a measuring part 7 adjacent to the front part thereof, and a measuring part 7 in the front part thereof. is provided with a carry-out section 8, in which, for example, potatoes 9 as a product are placed and forward-feeding weighing and forward-feeding removal are performed, and the work of placing potatoes 9 on the pool section 9 is carried out at a third stage. As shown in the figure, the worker 10 carries out the work, while the unloading section 8
A belt conveyor device 10' transports the products from the container to the packaging process (not shown), and the products are transported from the pool section 6
The forwarding of the product potatoes 9 from the weighing section 7 to the weighing section 7 and from the weighing section 7 to the carrying-out section 8 is carried out automatically as described below in a so-called semi-automatic manner.

Each head 5 has a predetermined thin plate-like panel 11, 12 made of aluminum or stainless steel and vertically formed with a valley-shaped concave upper end.
A set number of pool sections 6 and measuring sections 7 are attached to the apparatus via brackets 14 and 15.

At the boundary between each head 5, partitioning panels 11' and 12' having flat top surfaces are fixed to brackets 14 and 15 at a set height higher than each of the plate-like panels 11 and 12.

Further, in the carrying-out section 8, a plate-like panel 13 having a flat upper surface is pivotably supported on a set multi-bracket 16 via a pin 17.

And each of those plate-like panels 11,1
2 is mounted directly on the frame 2 in the pool section 6, and cantilevered on the strain body of a well-known load cell 19 as a weight measuring device mounted on the frame 2 in the weighing section 7, as shown in FIG. It is mounted with support.

In addition, the plate-like panels 11 and 12 in the pool part 6 and the measuring part 7 are formed with a downward concave part A toward the center thereof, so that they are fixed to the frame 2 and are fixed to the product's potatoes 9. In contrast, a support body is formed that reliably maintains the set posture.

At the same time, the plate-like panel 13 is removed at the unloading section 8.
The top surface is flat and has a chute function to make it easier to eject the potatoes 9.

The lower support shafts 17 and 1 are connected to the frame 2.
Links 18 and 18' (one is omitted in FIG. 1 because they are mechanically the same) are slidably disposed at one end of the link 7' in the longitudinal direction at a set angle. , are connected by a horizontal link 20 via upper support shafts 17'', 17'' to form a kind of parallel four-point link, and the horizontal link 20 is capable of parallel movement and sliding; An air cylinder 22 as a horizontal advance/retreat device fixed to the frame 2 is linked to the link 18 via an auxiliary link 21 supported by a pin, allowing the four-point link to swing back and forth at a predetermined angle in parallel movement. That's what I do.

The support shaft 1 at the upper end of each link 18, 18'
A dogleg-shaped bell crank 23, 23 is pivotally supported on each head 5 at 7'', 17'', and a rod 24 is pivotally connected between each rear end thereof.
At each front end there is a pool section 6, a measuring section 7, and an unloading section 8.
The above-mentioned plate-like panels 11, 1 can move up and down freely with respect to each plate-like panel 11, 12, 13, and move back and forth relative to each other.
Similarly to 2 and 13, a plate-shaped panel 25 made of aluminum or stainless steel and serving as a thin forward feeder is connected with a pin pivot, and a front bell crank 23
The front end of each link 18 is pivotally connected via a bracket 27 to an air cylinder 26 serving as a lifting device which is pivotally supported on the lower support shaft 17 of the corresponding link 18 .

Note that the upper surface of the plate-like panel 25 of the forwarding body is the measuring part 7, the plate-like panel 12 of the pool part 6,
A concave portion B corresponding to the concave portion A of No. 11 is formed in a valley shape.

Then, as shown in FIG. 1, the air cylinder 26
One is provided for each head 5, so that each head 5 can independently raise and lower the plate-like panel 25 of the advance member.

Therefore, in each head 5, the plate-like panels 25, 25, . 26, the pool part 6, measuring part 7,
The panels 11, 12, 13 (of the unloading section 8) are moved up and down from below the level of the upper ends thereof to an upper set height, and the links 21, 18, 18′,
Through the horizontal link 20, the pool section 6, the measuring section 7,
(to the plate-like panels 11 and 12 of the unloading section 8),
In addition, the forwarding action is performed in synchronization with all air cylinders 26 and 13, and the synchronous action of both air cylinders 26 and 22 causes the pool part 6, measuring part 7, (unloading part 8)
A kind of walking beam effect can be performed on the panels 11, 12, and 13 synchronously with respect to each other.

Of course, the air cylinder 22 can make the spool of the switching valve (not shown) neutral and inactive, and operate only the plate-like panel 25 of the advance body to move up and down in relation to the pool section 6 and the measuring section 7. It is also done like that.

Each air cylinder 26 of the lifting/lowering device is electrically connected to a control device (not shown) with a built-in microcomputer, and the head 5 which participates in combined weighing.
Only the air cylinder 26 of the horizontal movement device is configured to expand and contract, and the air cylinder 22 of the horizontal movement device is configured to operate at all times.

In the unloading section 8, a collar 29 fitted into a pin 28 provided at the bottom of the bracket 16 is inserted.
Links 30 and 31 are pivotally connected to each other by a pin, and the upper end of the link 31 is pivotally supported via a pin 32 to the base of the plate-like panel 13 whose upper surface is flat.

Further, another link 33 is fixed to the collar 29 and is pivotally supported by a pin on the upper end of the rod 34.
is connected to an air cylinder 35 which is connected to a lower bracket pivotally supported by the support shaft 17.

Similarly to the air cylinder 26, the air cylinder 35 is provided for each head 5.
Therefore, the plate-shaped panel 13 in the unloading section 8 of each head can be selectively pivoted and raised between a gentle slope state and a steep slope state as shown by the solid line and the dashed-dotted line in FIG. It is designed to be
Further, the air cylinders 26 and 35 operate according to the actuation signal corresponding to each head 5 for which the combined measurement is determined in the measurement unit 7 of the load cell 19.
By operating the air cylinder 35 with a set time delay with respect to 6, the unloading section 8 of the forward feeding body 25 is operated in a trajectory 36 shown in FIG.
The plate-shaped panel 13 is loaded from the upper side to the lower side, and the plate-shaped panel 13 is placed in the solid line state in FIG. The potatoes 9 are discharged onto the conveyor device 10' by rising from a gentle slope to a steep slope indicated by a dashed line.

As shown in FIGS. 2 and 3, the conveyor device 10' is a transfer conveyor provided laterally at a portion opposite to a collection conveyor 37 provided horizontally symmetrically with respect to the center of the delivery section 8. 38, the combined and weighed potatoes 9, 9, . . . are discharged into a bucket 40 provided on a stand 39, and transported to a packaging process as appropriate.

In the above configuration, when the semi-automatic combination weighing device 1 is used for combination weighing of the potatoes 9,
As shown in FIG. 3, an operator 10 is located on the side of the pool section 6 of the supply section, and first, all the plate-shaped panels 11, 11 of the heads 5, 5, .
For the concave part A of ......
By manually supplying and placing ..., and pressing the start switch on the operation panel 3, the air cylinder 2
2, 26, 26, . . . operate synchronously according to a predetermined program via a control device (not shown) to move the plate-like panel 25 as a forwarding body spanning the pool section 6 and the measuring section 7 to each pool section. 6, Measuring part 7,
Each plate-shaped panel 1 extends over the base of the carrying-out section 8.
1, 11..., 12, 12..., 13, 13...
The locus 36 in Figure 2 protrudes upward from the bottom between
As shown in the figure, the walking beam rotates and moves forward, and then sinks downward and returns, making a walking beam operation. Therefore, all the heads 5, 5... of the pool section 6
In the plate-like panels 11, 11 of the support body...
...The potatoes 9, 9 of all the products placed in the upper concave portion A are all transferred at once by each plate-like panel 25 of the forwarding body to the plate-like panel of the support body of the measuring section 7 in front of it. 12, 12, . . . on the concave portions A in a stable posture in parallel movement, and does not roll laterally.

After that, the air cylinders 26 of the elevating device of each head 5 stop, and only the air cylinders 22 of the horizontal advance/retreat device expand and contract in a fixed cycle, so that each panel 25 of the advancing body is held in a horizontal state on the support. The lower side of each panel 11, 13 of the product can only move back and forth without coming into contact with the potatoes 9, 9, . . . .

Therefore, the worker 10 in front of the pool section 6 manually places the potatoes 9, 9... of all the products on each head 5, 5... of the pool section 6 again, thereby starting the initial operation. When the operator 10 presses the continuous button on the operation panel 3, the weight detection function of the load cell 19 of each head 5 of the weighing section 7 is started via the control device according to a predetermined program, and the detection The weight is input to the microcomputer, calculation is performed, and a predetermined combined weighing operation is started.

That is, in the first initial operation, the plate-like panels 1 of the supports of all the heads 5 of the measuring section 7
2, 12...The weight of the products 9, 9... placed in the upper concave portion A is determined by each corresponding load cell 1.
9, the detected weight value is electrically input to the microcomputer and calculated, and the combination of heads 5, 5, etc. that is equal to the set target weight value or has a weight value that is the closest plus the minimum amount of excess is determined. The air cylinder 26 of each selected head 5 is extended by the control device, and as a result, the links 18, 18' and the horizontal link 2 are expanded as described above.
0, bell cranks 23, 23, and brackets 27, each plate-shaped panel 25 as a forwarding body is connected to each plate-shaped panel 11, 11, 12, 12, . The products on the panels 12, 12 of the support body of the weighing section 7 of the head 5, which protrude upward from the lower side from between the two and participate in the combination weighing, are carried out by the action of a walking beam. Transferred to the base of each of the plate-like panels 13, 13 in a gently inclined position shown by the solid line of the support of the pool part 8, and also to the combination of the plate-like panels 11, 11... of the support of the pool part 6. The plate-shaped panel 12 of the support of the weighing section 7,
12 . . . correspondingly synchronously and similarly transferred by the walking beam action, and the air cylinders 26,
Due to the retracting action of 22, the plate-like panels 13, 13, . . . , 12, 12, .

Therefore, each head 5 participating in the combined weighing
each plate-like panel 12 of the support of the metering section 7,
12... and the plate-shaped panels 11, 11... of each support of the pool section 6... The products above, the potatoes 9, 9..., are sent to the front with a phase shift, so that the work The person 10 places the next products 9, 9 in the concave part A on the support panel 11, 11 of the head 5 which became empty after participating in the combination weighing in the pool part 6.
... is placed manually.

Then, the air cylinder 26 is returned to its original state via a control device (not shown), and the forwarding body 25 is retracted from the upper side to the lower side of the plate-like panel 13 of the carrying-out section 8, and the product potatoes 9 are transferred to the carrying-out section. 8 plate-like panels 1
3, the air cylinder 35 expands, and the plate-shaped panel 13 changes from the gentle slope shown by the solid line to the steep slope shown by the dashed-dot line through the rod 34 and the links 33, 31, and 30, with the plate panel 13 centered around the pin 17. Therefore, as shown in Figs. 2 and 3, the Nojiya potatoes 9, 9, etc., which are the products to be weighed in combination, wait at the lower side of their tips and rotate. The packaged products are quickly discharged onto collecting conveyors 37, 37, and then discharged into a bucket 40 by transport conveyors 38, 38, and are appropriately transferred to the next packaging process.

Then, when the air cylinder 35 retracts at a predetermined timing, the plate-like panel 13 of the unloading section 8 returns from the steeply inclined state shown by the dashed line to the gently inclined state shown by the solid line due to the above-mentioned reverse operation, and is reset to the initial state. The cycle of combinatorial metering described above is repeated.

During this time, each panel 25 of the advancing body that performs each walking beam action, and the panels 11, 11..., 12, 12... of the products and potatoes 9, 9... of each support body are in a concave shape. Since it is placed in section A and transferred in a stable posture, it will not be damaged.

Also, overall, from the support 11 of the pool section 6 to the support 12 of the weighing section 7, and from the supports 12, 12... of the weighing section 7 to the plate-like panels 13, 13... of the carrying-out section 8. The walking beam action from bottom to top and from top to bottom of the plate-like panels 25, 25 of the advancing body against The plate-like panels 25, 25... of the support body No. 5 are the panels 11, 11... of the support bodies of the pool section 6, measuring section 7, and carrying-out section 8.
..., 12, 12..., 13, 13..., it only moves back and forth below the level of the top, and therefore the products that do not participate in the combination 9, 9... The walking beam effect on ... is not involved.

By repeating such operations semi-automatically, the worker 10 on the near side can measure the plate-shaped panels 11, 11, etc. It is sufficient to replenish the products 9, 9, . . . only in the concave portion A.

In this way, the plate-shaped panel 2 as a forwarding body corresponding to the head 5 participating in the combination weighing
5, 25... transfer the products 9, 9... from the pool section 6 to the weighing section 7 and from the weighing section 7 to the unloading section 8 under the action of the walking beam, and perform combined weighing. As shown in FIG. 1, the panels 25, 25, . It only moves.

Incidentally, it goes without saying that the embodiment of this invention is not limited to the above-mentioned embodiment.
Various configurations can be adopted, such as providing a pair of panels on the left and right sides and making the plate-like panels 13, 13, . . . of all the heads 5 rise and fall at the same time.

It goes without saying that the target products can also be ham, apples, vegetables, fish, meat, etc. in addition to potatoes.

<Effects of the invention> As described above, according to this invention, in a semi-automatic type combination weighing device in which each head is arranged horizontally, each support and a forwarding member that acts as a walking beam with respect to the support are placed on the upper surface. By using a thin vertical plate-like panel with a concave shape, the contact area for contacting and supporting the product from below is significantly reduced in a linear manner. At this time, the posture of the product is stable and the product can be placed and transferred smoothly. Therefore, transfer from the pool section to the weighing section, from the weighing section to the unloading section, etc. is performed reliably, and there is no problem with combined weighing. This is an excellent effect.

The plate-like panel in the unloading section is supported by pins on the frame and connected to a rotating lifting device such as an air cylinder. By selectively tilting the weighed product from the weighing section to a steep tilting state after it is baton-touched by the walking beam action, the product is not only smoothly transported to the next stage of the belt conveyor, etc. , there is no need to set the position in a fixed position and steeply incline from the beginning, and the height of the next stage belt conveyor, etc. relative to the base does not have to be extremely low, which improves workability. An excellent effect is achieved in that the size of the weighing device can be designed to be reasonable.

In addition, since the plate-like panels of the weighing section and the plate-like panels of the unloading section do not have to be in a fixed positional relationship with each other, they do not interfere with each other, making it easier to transfer products, and making work easier. This has the excellent effect of improving efficiency.

In this way, the product placement and transition surface of the plate-like panel from the pool section to the weighing section is formed in a concave shape, and the attitude of the carrying out section from the weighing section to the carrying out section changes from a gently inclined state to a steeply inclined state. Because it is changeable, the product is not placed in an unreasonable position from the initial placement of the product in the pool area until it is transported to the next process, and the product is always placed, transferred, and transported in a stable position. Moreover, excellent effects are achieved in that the product is not damaged, and even if the thickness of each plate-shaped panel is reduced, each plate-shaped panel is not damaged and its durability is improved.

Furthermore, since the entire device is made more compact,
It does not require a small space at the installation location, has the effect of eliminating interference with other equipment, etc., and allows the equipment to have as many horizontally arranged heads as possible within the worker's work range. , the excellent effect of improving the combined weighing accuracy of the device is produced.

[Brief explanation of the drawing]

The drawings are explanatory diagrams of one embodiment of this invention, in which Fig. 1 is a partially enlarged schematic transparent side view of the mechanism, Fig. 2 is an overall schematic side view, Fig. 3 is a plan view of the same, and Fig. 4 is a front view of the same. It is. 6... Pool part, 7... Measuring part, 5... Head, 11, 12... Support body, 25... Advance body, 2
6...Elevating device, 22...Horizontal advance/retreat device, 1...
Combination weighing device, 11, 12, 13, 25...Plate-shaped panel, 2...Frame, 35...Swivel undulating device, A...Concave portion.

Claims (1)

[Claims for Utility Model Registration] (1) The pool part on the near side and the measuring part provided in the front part each have a plurality of heads, and each head has a number of fixed supports and each of the supports. It consists of a forward feeding body which is interposed between the two and whose positions are fixed to each other and which rotates in the front and back direction.The forward feeding body has an elevating device and a horizontal advance/retreat device connected to the frame, and further includes a mechanism for each measuring section. In a combination weighing device having a dispensing section at the end, the supporting body and the forwarding section are formed of a vertical plate-shaped panel having a concave upper edge, and the discharging section has a vertical plate-shaped panel. 1. A combination weighing device, characterized in that it is connected to a swinging/levying device provided on a frame, and its inclination state can be selected to be fast or slow. (2) The above utility model registration request is characterized in that the advancing body is integrally and continuously formed from the pool part to the measuring part, and the upper surface is formed in a concave shape with respect to the pool part and the measuring part. Combination weighing device according to scope 1. (3) The combination weighing device according to claim 1, wherein the upper surface of the plate-like panel of the carrying-out section is formed into a flat surface. (4) The combination weighing device as set forth in claim 1 of the above utility model registration claim, characterized in that a pivot center is provided in the middle of the plate-like panel of the unloading section.