JPH0635144Y2 - Weigher - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention is directed to a rectangular load-carrying part and four load detectors arranged so as to individually receive the squares of the load-carrying part. And a weigher with.

[Conventional technology]

Such a weighing machine is used to measure the weight of a walking animal such as a cow or a vehicle such as a truck. In the past, for example, the weighing machine can be disassembled and assembled, and the measured object placing section is also provided. , For example, in the form of a deck,
The load detectors were connected to the squares of the deck-shaped object-carrying part to assemble the entire weighing machine (for example, the microbalance of Japanese Utility Model Application No. 54-55095 (No. 55-154430)). See the film).

[Problems to be solved by the device]

A weighing machine for weighing large animals such as cows and weighing large animals, trucks, etc. is large enough to hold the entire object to be measured and has sufficient strength to withstand a large weight. Therefore, the weight of the entire weighing machine, especially the weight of the object to be measured is considerably increased.

Therefore, in the above-mentioned conventional technology, in order to install the device, after the measured object placing part, that is, the entire deck is assembled, the entire assembled deck is lifted by a cargo handling machine such as a crane, and in that state, four load detection parts are provided. It is necessary to position and adjust each of them separately with respect to the deck, and then connect each load detection unit to the deck.As a result, the installation work of the weighing scale requires a special cargo handling machine and manpower. At the same time as work, there is a disadvantage that the installation work time becomes long,
Improvement was desired.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a weighing machine that can favorably carry and install work.

[Means for Solving the Problems]

A weighing machine according to the present invention is a weighing machine having a rectangular measurement object placing portion and four load detecting portions arranged so as to separately receive the respective squares of the measurement object placing portion,
The feature is that the measurement object mounting portion is composed of a pair of elongated frame bodies along the long side direction thereof and a plurality of mounting plates divided in the long side direction, and both ends of each frame body. Each of the parts is detachably connected to the load detection part, and each mounting plate is
Removably mounted on the pair of frame bodies, in response to the front and rear ends of the measurement object mounting portion in the long side direction, along the short side direction of the measurement object mounting portion, and a pair of loads. A pair of plate-shaped bases provided with a mounting portion for the detection unit is provided, and the four load detection units are detachably assembled to each of the pair of plate-shaped bases. The effects are as follows.

[Action]

The weigher can be divided into a pair of elongated frame bodies, a plurality of mounting plates, four load detection units, and a pair of plate-shaped bases.
Therefore, it is possible to perform transportation work while handling individual items that are extremely lightweight compared to the entire scale, and also in the installation work, first install a pair of plate-shaped bases, and then load the four loaders on the plate-shaped bases. Assembling the detection unit, connecting a pair of long frames to the load detection unit, and placing multiple mounting plates on the pair of long frames, it is extremely lightweight compared to the entire weighing machine. It is possible to carry out work while handling various individual articles.

Further, in the above-mentioned installation work, it is even possible to align and install a pair of plate-shaped bases at both front and rear ends in the long side direction of the measured object placing part in a state along the short side direction of the measured object placing part. For example, the installation positions of the four load detection units are adjusted by assembling the load detection units with the pair of mounting units provided on each plate-shaped base.

[Effect of device]

Therefore, according to the present invention, it is possible to favorably perform the transportation work and the installation work while handling the individual articles that are divided into the light weight, and further, it is possible to easily adjust the installation position of the load detection unit. In the technology, the work of installing a weighing machine requires a special cargo handling machine or manpower, which is a large scale work, and the disadvantage that the installation work time becomes long is solved, and the carrying work and the installation work do not use a special cargo handling machine. It became possible to do well even by one person.

〔Example〕

Hereinafter, the case where the embodiment of the present invention is applied to weighing of cows will be described with reference to the drawings.

As shown in FIG. 7, a cattle weight measuring device is provided in the middle of a walkway where cattle are customarily used for walking, such as between a barn and a pasture.

This weight measuring device is equipped with an inlet chute (1) for guiding cows.
And a weighing section (S) having a weighing machine (2) and an outlet chute (3) for guiding the cow, and the cow is the weighing machine (2).
The static weight value of the cow is measured as it walks and passes by.

The entrance chute (1) and the exit chute (3) are constructed by providing fences (1A) and (3A), which are framed pipe frames, on both left and right sides of the passage at an interval that allows one cow to pass through. The cows can walk with peace of mind while looking at the surroundings.

Further, the entrance chute (1) is for guiding one by one from the herd of cows gathered in the waiting area to the entrance of the weighing machine (2), and is a portion close to the weighing machine (2). Is bent so as to form a substantially right angle so that the cow can enter the weighing machine (2) while walking along a right-angled path. In other words, by bending the walking path of the cow,
The weigher (2) is designed to prevent the trouble that two cows enter the weighing machine at the same time and the succeeding cow from cutting in from the side of the preceding cow. The outlet chute (3) is linearly provided so as to be located on an extension line of the linear walking path on the weighing machine (2) so that the cow after weighing can easily exit. is there.

As shown in FIG. 1 and FIG. 2, the weighing section (S) sequentially fetched and loaded the weighing value data of the guided cow while walking on the weighing machine (2). Measurement processing unit (H) that calculates the static weight value of the cow from the weighing value data
Is provided, an entrance gate (G ₁ ) and an exit gate (G ₂ ) are provided at the entrance side and the exit side of the weighing machine (2), and both sides of the weighing machine (2) are provided. A fence (4) is provided which is located on the side and regulates the walking direction of the cow so that the cow walks along a straight line on the weighing machine.

By the way, the total length of the weigher (2) is set to 3 m so that the cow can walk a few steps (for example, 3 to 6) while the whole is placed, and the space between the left and right fences (4) is one. It is set to allow cows to pass through it (for example, 70 to 80 cm).

Next, the weighing machine (2) will be described in detail mainly with reference to FIGS. 3, 5, and 6.

The weighing machine (2) is attached to a pair of front and rear plate-like bases (5) installed on the inlet side and the outlet side,
It is provided with a rectangular measurement object placing part (2A) and four load detecting parts (2B) arranged so as to respectively receive the respective squares of the placing part (2A). That is, the pair of plate-shaped bases (5) are arranged along the short side direction of the measurement object placing part (2A) corresponding to the front and rear ends of the measurement object placing part (2A) in the long side direction. It is provided in the state.

The load detector (2B) is a plate-shaped load cell receiver (6)
And a load cell (7) fixed to the load cell receiver (6) by a bolt.

The measurement object placing part (2A) is composed of a pair of elongated frame bodies (8) along the long side direction thereof, and four placing plates (9) divided in the long side direction, Both end portions of each frame body (8) are detachably connected to the load detection section (2B), and the mounting plates (9) are detachably placed on the pair of frame bodies (8). There is.

To explain each part, the pair of bases (5)
Is fixed to the road surface with anchor bolts (10).
The load cell receivers (6) are bolted to the left and right ends of these bases (5). That is, the pair of plate-shaped bases (5) includes the load cell receivers (6) as mounting portions for the pair of load detection portions. A stepped pin (11) having a large-diameter portion in the longitudinal middle portion is inserted into each load cell (7) in a removable manner, and the long frame body (8) is attached to the head of the pin (11). It is fitted so that it can be inserted and removed freely. A pair of side frames (12) for connecting the pair of long frame bodies (8) at the front and rear ends are installed.
When fitting the elongated frame body (8) to the stepped pin (11), a rubber pad (13) and a washer (14) are provided in two layers inside the elongated frame body (8). Through hole (1
It has a structure in which the head of the pin (11) is inserted into 5),
As a result, the high frequency vibration generated when the cow walks is absorbed. By the way, a hole is formed in a portion of the long frame body (8) corresponding to the pin (11),
By seeing the pin (11) through this hole, the work of fitting the elongated frame body (8) into the pin (11) is facilitated.

A rubber mat (16) is provided on the upper surface of the placing plate (9) to prevent the cow's feet from slipping and to reduce the impact when stepped on.
Are attached by adhesion. The mats (16) located on the inlet side and the outlet side of each mounting plate (9) are
The extension part (16a) is extended to the inlet side or the outlet side, and covers the end sides of the inclined bases (17) arranged in front of and behind the weighing machine (2). As a result, mud and stones are prevented from entering the gap between the weighing machine (2) and the tilt table (17). Further, an angle member (18) which serves as positioning and reinforcement by contact with the elongated frame body (8) is attached to the lower surface of the mounting plate (9).

In this way, the weighing machine (2) can be divided into the measurement object placing section (2A) and the load detecting section (2B), and the measurement object placing section (2A) includes a pair of long frame bodies (8) and four pieces. Since it can be divided into the mounting plate (9) and the mounting plate (9), it is possible to perform the transportation work and the installation work satisfactorily even by one person while handling individual articles that weigh significantly compared to the total weight. .

Next, the gates (G ₁ ) and (G ₂ ) are shown in FIGS.
It will be described with reference to the drawings.

However, since both gates (G ₁ ) and (G ₂ ) have basically the same structure, the entrance gate (G ₁ ) will be described as a representative, and the exit gate (G ₂ ) will be described as necessary.

The entrance gate (G ₁ ) includes a gate-shaped frame (19), a pair of left and right doors (20) that open and close in a sliding manner, and the doors (2).
0) and a door opening / closing mechanism (21) for opening and closing. The portal frame (19) has a bottom flange fixed to both ends of the base (5) by bolts.

The door (20) is formed in a horizontal lattice shape with a plurality of horizontal pipe frames (20a) so as to improve the visibility of the cow and not make the cow feel uneasy, and the weight and cost are reduced. Considering that, the part corresponding to the feet of the cow is omitted. However, if the part corresponding to the feet of the cow is omitted in this way, there is a risk that the cow will thrust its neck into the gap, so in order to avoid this, try blindfolding the lower part of the door (20). A board (20b) is attached.

The horizontal frame portion (19) above the portal frame (19)
Brackets (22) are provided at both left and right ends of (a), and stoppers (23) are provided at the center of the horizontal frame portion (19a). These brackets (22) and stoppers (23)
A round bar-shaped upper slide rail (24) is penetratingly supported in the and. This upper slide rail (24) has a door (2
The bosses (25) welded to the left and right upper parts of (0) are slidably fitted on the outside. On the other hand, a pair of left and right vertical frame portions (19b) of the portal frame (19) are provided with locking pieces (26) for slidably locking the lower end edge of the door (20). Therefore, the door (20) is slidably supported in a suspended state.

Further, as shown in FIG. 4, the horizontal frame portion (19
A sprocket (27) rotatable about the longitudinal axis is provided on each of the left and right ends of (a), and a chain (28) is wound around these sprockets (27). Then, each of the pair of path portions of the chain (28) is separately connected to the inner bosses (25) of the left and right doors (20) to form the chain (28).
The left and right doors (20) are configured to slide in the opposite directions in accordance with the rotation of the, so that the left and right doors (20) are simultaneously opened and closed.

The door opening / closing mechanism (21) includes a first operation lever (29) as an opening / closing operation tool provided on a vertical frame portion (19b) of a gate frame (19) so as to be vertically swingable, and the first operation lever. The swing arm (30) attached to the support shaft (29a) of (29) and the swing arm (30) and the boss (25) on the inner side of the left door (20) are erected and connected. It is composed of a push-pull link (31). Then, when the first operation lever (29) is manually swung downward, the push-pull link (31) is pulled leftward as the swing arm (30) swings outward, and the left door is opened. (20) is to be opened. Of course, as described above, the left and right doors (20) are interlockingly connected so as to slide simultaneously in opposite directions,
The right door (20) will also be opened. A spring (32) for pulling and urging the door (20) toward the closing side is provided between the inner boss (25) to which the push-pull link (31) is connected and the lateral frame portion (19a). Is installed, and when the first operation lever (29) is released, the left and right doors (20) are returned to the closed position regulated by the stopper (23).

The exit gate (G ₂ ) has a structure that is symmetrical with the entrance gate (G ₁ ) in the front-rear direction, and a detailed description thereof will be omitted. However, the second operation lever (33) as an opening / closing operation tool for operating the exit gate (G ₂ ) is
It is provided on the inlet side of the weighing machine (2) together with the operation lever (29). That is, the support shaft (33) of the second operation lever (33)
a) is installed so as to span the portal frame (19) of the entrance gate (G ₁ ) and the portal frame (34) of the exit gate (G ₂ ), and the entrance gate of the support shaft (33 a) is provided. (G
₁ ) The 2nd operation lever (33) is attached nearby.

Therefore, the worker can open and close both gates (G ₁ ) and (G ₂ ) while continuing to be located on the inlet side of the weighing machine (2).

Next, a description will be given of the configuration in which the cow is made to walk along the linear walking path on the weighing machine (2).

As described above, fences (4) are provided on both the left and right sides of the weighing machine (2), and the side fences (38) are provided below the fences (4).
Is provided. The fence (4) is provided to restrict lateral movement of the body of the cow, and the fence (3
8) is provided to restrict the lateral movement of the foot of the cow.

The fence (4) is lying lattice shape coupled with four horizontal pipe frame arranged around the vertical pipe frame (35a) in the vertical direction (35b), portal frame of the entrance gate (G ₁₎ Vertical frame part (19b) of (19) and exit gate (G
₂ ) The vertical frame part (34b) of the gate frame (34),
For each of the central columns (37) located in the middle of them, U
It is fixed using a letter bolt (36). By connecting the entrance gate (G ₁ ) and the exit gate (G ₂ ) with the fence (4) in this way, they are made into an integrated structure, which makes it possible to improve their installation strength. .

By the way, if the cow's walking direction is restricted only by the fence (4), there is a risk that the calf will turn unnecessarily, and the body of the cow easily contacts the fence (4). The contact makes it easy to cause an error in the measured value. For this reason, the widthwise fence (38) is provided to avoid such inconvenience. The side fence (38) has a rectangular loop-shaped main frame formed by a pipe frame, a plurality of reinforcing pipe frames (41) arranged in the front-rear direction, and a plate (38a) on the entire inner surface. It is formed, and is suspended from the horizontal pipe frame (35b) at the bottom of the fence (4) so as to be swingable. And by adjusting the swing, left and right side fences (38)
You can adjust the interval according to the size of the cow. More specifically, as shown in FIG. 5, a supporting frame (3
9) is fixed, and pin receiving brackets (40) are attached to both ends of this support frame (39). A plate-shaped adjusting fitting (42) is pivotally attached to the lower end of the reinforcing pipe frame (41) of the side fence (38). The pin receiving bracket (40) and the adjustment fitting (42) are pin-connected to each other so that the swing of the side fence (38) is restricted, and the adjustment fitting (42) has a large number of pin holes. (42a) is drilled. Therefore, when adjusting the distance between the left and right side fences (38), it can be easily performed by changing the pin hole (42a) used for connection.

By the way, the side fence (38) substantially changes the passage of cattle without changing the width of the fence (4), but even if it is narrow, it approaches from both sides like a normal fence. There is no pressure to come, so there is an advantage that cows do not feel anxious.

As shown in FIG. 8, a stand (43) is provided upright near the inlet side of the weighing machine (2). An instrument box (B) accommodating the measurement processing unit (H) is provided in the front open box-shaped casing (44) fixed to the upper part of the stand (43) by using two bolts to adjust forward and backward tilting. Supported as possible. Further, a printer mounting table (45) is provided on the lateral side of the casing (44), on which a printer (46) for printing the identification number of the cow and the determined static weight value is mounted. There is. The printer mounting table (45) is swingably provided via a hinge (47), and when not in use, it is swung upward to cover the upper surface of the casing (44) so that it can be stored compactly. is there.

On the front of the instrument box (B), there is a first display (48)
In addition to the second display section (49), a numeric keypad (5
0), ON / OFF key (51) for instructing the start and end of weighing,
(52), various keys such as a print key (53) for instructing the printing of the printer (46). A buzzer (54) is provided in the instrument box (B). The first display section (48) displays the identification number of the cow input by the ten-key (50), the weighing value data that is read at any time, and the second display section (49) displays the calculation. The static weight value of the selected cow is displayed.

Here, the operation of the weighing section (S) and its operating procedure will be briefly described.

The cow is guided by the entrance chute (1) and the entrance gate (G ₁ )
When you come to the front, press the numeric keypad (50) to enter the identification number of the cow you read. After finishing the input, operate the first operation lever (29) to open the entrance gate (G ₁ ) and place the cow on the weighing machine (2). Once the cow is on the balance (2), close the entrance gate (G ₁ ). When the static weight value is obtained by the measurement processing unit (H), the buzzer (54) operates to notify the end of weighing. Then, the outlet gate (G ₂ ) is opened to lower the cow from the weighing machine (2), the print key (53) is pressed, and the static weight value displayed on the second display section (49) is printed with the cow identification number. Print it on (46).

Next, the measurement processing unit (H) will be described in detail.

This measurement processing unit (H), as shown in FIG.
The input means (55) for receiving the weighing value signal (analog electric signal) to which the detection signals of the individual load cells (7) are added, and the received weighing value signal are sequentially fetched and stored as time-series weighing value data to store the static weight value. Central control unit (5
It consists of 6).

The input means (55) includes an amplifier (55A) that amplifies the weighing value signal, a low-pass filter (55B) that smoothes the output of the amplifier, and an A / D that quantizes the smoothed signal at a predetermined sampling time. It consists of a D converter (55C).

The central controller (56) is a memory (56A) for storing time-series weighted value data of sampled weighted values, and a gait periodicity evaluation means (56B) for calculating gait periodicity from the time-series weighted value data. , Valid data section setting means (56C) for setting a valid data section (T) from time series weighing value data based on the gait periodicity, and an animal walking from the time series weighing value data in the valid data section (T) It consists of a calculation means (56D) for calculating the static weight value of
The main component is a microcomputer.

Next, the procedure for determining the static weight of a cow walking on the weighing machine (2) will be described.

FIG. 10 is a graph of an amplifier output of an analog signal indicating a weighing value sent from the load cell (7) as a cow walks on the weighing machine (2). In this graph, the area indicated by a is a state in which only the front paws of the walking animal are on the scale (2), and the area indicated by b is a state in which the total weight of the cow is on the scale (2), The area indicated by c is a state in which only the hind legs of the cow are on the scale (2).

The output of this amplifier is passed through a low pass filter (55B),
The signal becomes a smoothed signal as shown in FIG. FIG. 12 is an enlarged view of the area indicated by b above. From this figure, it can be understood how the analog weight value signal is sampled and quantized.

After the weighing is started, when the quantized weighing value data (hereinafter simply referred to as weighing value data) becomes larger than a set value (K) which is slightly larger than the weight of the weighing machine (2), the cow weighs. The weighing value data is sequentially stored in the memory (56A) as a sampling sequence as if the user started riding on the vessel (2). The storage is continued until a fixed time (T ₀ ) for storing the sample data has elapsed from the start of storage.

Next, the gait periodicity evaluation means (56B) obtains the maximum value: W _max from the stored sampling data, and from this, a data group in a predetermined range, the maximum value in this embodiment,
The data group having a value of 90% or more is regarded as the weighing value data group when the total weight load of cattle is on the weighing machine (2). In this embodiment, 0.9 is multiplied, but the value (n) to be multiplied can be a number greater than 0.8 and less than 1.

The gait periodicity evaluation means (56B) further evaluates the gait periodicity by examining the maximum value from the weighed value data group. In the case shown in FIG. 12, the maximum value is
There are five of W1, W8, W15, W23, W29.

Next, the valid data section setting means (56C) sets the valid data section (T) with the time point at which the first maximum value W1 appears as the starting point and the time point at which the maximum value W29 appears a plurality of times, here the fourth time, as the end point. Will be set.

However, in the setting of this valid data section, how many walking cycles are included can be set in advance depending on the type of walking animal, the natural frequency of the weighing machine (2), and the like.

The sampling data in the valid data section (T) set in this way are averaged by the computing means (56D), and the static weight value of the cow walking on the weighing machine (2) is calculated. By this measurement, for example, an animal weighing 1000 kg can be detected with an accuracy within an error of 1 kg.

[Another embodiment]

Various modifications can be made to the specific configurations of the elongated frame body (8) and the mounting plate (9) that form the measurement object placing section (2A), and various changes to the specific configuration of the load detecting section (2B).

Further, an elastic body such as rubber is interposed between the mounting plate (9) and the elongated frame body (8) to suppress rattling of the mounting plate (9) and to damp high frequency vibrations. Is also effective.
In that case, the elastic body may be interposed over the entire contact surface between the mounting plate (9) and the elongated frame body (8), or may be partially interposed.

Although the weighing machine (2) for measuring the weight of the cow is exemplified in the above-mentioned embodiment, the present invention can be applied to a device for measuring the weight of other animals such as pigs and vehicles such as trucks.

By the way, to measure the weight of walking animals, weigh scale (2)
Various means can be used to determine the weight of the animal from the measured weight data. That is, as described in the above embodiment, if the weight of the animal is obtained from the weight value data obtained with the walking while the animal is actively walking, the weight of a large number of animals can be efficiently measured. However, various means can be used, such as a means for stopping the animal on the weighing machine (2) and determining the weighted value of the stopped state as the weight of the animal.

In the claims of utility model registration, reference numerals are given for convenience of the drawing, but the present invention is not limited to the structure of the attached drawings by this entry.

[Brief description of drawings]

The drawings show an embodiment of a weighing machine according to the present invention. FIG. 1 is a side view of a weighing unit equipped with a weighing machine, FIG. 2 is a front view thereof, and FIG. 3 is a partially cutaway plan view of the weighing machine. FIG. 4 is a plan view showing a door opening / closing operation structure, FIG. 5 is a front view showing a mounting portion of a load detecting portion, FIG. 6 is a side view showing the same portion, and FIG. 7 is a schematic plane view of a weight measuring device. Fig. 8 is a front view showing the installation configuration of the measurement processing unit, and Fig. 9 is a block diagram of the measurement processing unit.
FIG. 10 is a diagram showing a weighed value analog signal, FIG. 11 is a diagram showing a signal after a low-pass filter is applied to the signal of FIG. 10, and FIG.
FIG. 12 is an enlarged view showing a sampling state of the main part of FIG. (2A) …… Measuring object placement part, (2B) …… Load detection part,
(8) …… Long frame, (9) …… Platform, (5) ……
Plate-shaped base, (6) ... Mounting part.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor, Tomasa Kawabata 1-1-1, Hama, Amagasaki City, Hyogo Prefecture, Kubota Iron Works Co., Ltd. (56) References Actual public Sho 53-54283 (JP, Y2)

Claims (1)

[Scope of utility model registration request] 1. A rectangular object mounting part (2A), and four load detecting parts (2B) arranged so as to separately receive the respective squares of the object mounting part (2A). In the weighing machine, the measurement object placing section (2A) includes a pair of elongated frame bodies (8) extending along a long side direction thereof and a plurality of placing plates (9) divided in the long side direction. ), Each end of each frame (8) is detachably connected to the load detector (2B), and each mounting plate (9) is attached to the pair of frames (8). It is detachably mounted and the measurement object mounting part (2A)
A pair of plates corresponding to the front and rear ends in the long side direction, along the short side direction of the measurement object placing section (2A), and provided with a pair of load detecting section mounting sections (6). A scale-shaped base (5) is provided, and the four load detection parts (2B) are detachably assembled to the pair of plate-shaped bases (5).