JPH07324969A - Mixing material weighing system - Google Patents

Abstract

PURPOSE:To shorten the mixing time while weighing accurately by providing a plurality of machines for weighing respective mixing materials and means for comparing a current weighed value with a value weighed in the preceding process. CONSTITUTION:The mixing material weighing system IA comprises a body 1 and a CPU wherein the body 1 comprises four tanks 27-210 for storing the mixing materials, four cans for receiving the mixing materials and transferring on a conveyor, transferring means, i.e., six conveyors 62, 611-615, a photoelectric switch for controlling them, and four weighing machines 816-819. The CPU is provided with a comparing means, i.e., a weighed value table. Since the mixing material weighing system 1A comprises four weighing machines 816-819 for weighing the mixing materials individually, the working time can be shortened. Furthermore, since first to fourth weighed value tables for comparing the values weighed through the weighing machines corresponding to second and subsequent processes with values weighed in the preceding process are provided, measurement can be made in the process line resulting in an efficient and accurate weighing of mixing material.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a compounding agent metering device. Specifically, the present invention relates to a compounding agent measuring device for measuring a compounding agent compounded in rubber or plastic.

[0002]

When kneading compounding agents for rubber products and plastic products, various compounding agents are compounded depending on the application. For example, in rubber products, in addition to sulfur powder, accelerators such as slaked lime and magnesium oxide, softening agents such as mineral oil and fats, reinforcing agents such as carbon black and calcium carbonate, and other compounding agents may be specified according to the purpose. Blended in proportion.

However, in the prior art, the measurement of the above-mentioned compounding agent was an artificial work by an operator using an analog type platform scale or a digital type platform scale, and therefore any one of many types of compounding agents was selected. In some cases, the amount of the compounding agent was excessive or deficient due to forgetting to compound the compounding agent or making an incorrect measurement.

Therefore, the control device is made to memorize the kind of compounding agent required for each kind of rubber, the compounding amount and the allowable range of its error, and the control device is made to check the measuring work so that all compounding agents can be measured. A weighing device (for example, see Japanese Utility Model Laid-Open No. 59-104034) that displays the completion of weighing when completed, or a weighing device that can measure the total weighing accuracy with other materials ( For example, refer to Japanese Examined Patent Publication No. 4-65762), etc., and it became possible to automate the measurement. However,
The former measuring device had a structure in which all of the compounding agents were measured by one metering machine, and therefore it took a lot of time to prepare a plurality of compounding agents.

On the other hand, in the latter measuring device, since a plurality of measuring machines are provided so that each compounding agent can be individually measured, the working time can be shortened as compared with the former. However, since a mechanism for checking the once-measured value is not provided, there is a possibility that the desired kneading may not be performed when a trouble occurs in the weighing machine itself and accurate measurement cannot be performed. Therefore, it is conceivable to remove the weighed product from the process line and calibrate it, but this would take a long time for the preparation, which is not preferable in terms of productivity.

[0006]

The present invention has been invented in view of the above problems, and the problem to be solved is not only accurate measurement is possible but also the preparation time is short. An object of the present invention is to provide a compounding agent supply device which is completed.

[0007]

Means for Solving the Problems The compounding agent supply device of the present invention solves the above problems and is as follows. That is, the compounding agent supply device of the present invention,
A plurality of storage containers arranged in the order of steps and for storing the compounding agent, a plurality of transport containers which receive the compounding agent stored in these storage containers and are transported along the process line, and these transport containers Corresponding to the plurality of storage containers in order to measure the weight of the transport means for transporting to the location corresponding to the plurality of storage containers, the transport container transported by the transport means and the compounding agent put therein. A plurality of weighing machines arranged in parallel, a detecting means for detecting the movements of these weighing machines and the conveying means, and a weighing value measured by a weighing machine corresponding to at least the second step or more of the plurality of weighing machines. And a comparison means for comparing the measured value in the previous process.

[0008]

Therefore, according to the compounding agent supply device of the present invention,
Since a plurality of weighing machines for individually weighing each compounding agent are provided, the working time can be shortened. In addition, since there is a comparison means for comparing the measured value measured by the measuring machine corresponding to at least the second step or more among the plurality of measuring machines with the measured value in the step immediately before that, the process line Among them, it becomes possible to calibrate the measured value in the previous process.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the accompanying drawings with reference to the accompanying drawings. 1 and 2 are conceptual views of the compounded agent weighing device of the present invention, wherein FIG. 1 is a side view, FIG. 2 is a plan view, and FIG. 3 is a conceptual view for explaining a characteristic part of the present invention. Is.

The compounding agent measuring device 1A comprises a main body 1 and a computer system (not shown) as a control unit.
The main body 1 is located on the upper part of the apparatus and is a step (the step here is a step of sequentially mixing different compounding agents into the cans 4, 4, 4, ..., Which will be described later. Details will be described later.). A plurality of tanks (four in this embodiment) arranged in order, and tanks 2 ₇ 2 ₈ 2 ₉ 2 ₁₀ as storage containers for storing compounding agents not shown, and these tanks 2 ₇・ 2 ₈・ 2 ₉
・ Tank 2 ₇ to receive compound stored in 2 ₁₀
Cans 4 and 4 as a plurality of transfer containers placed below 2 ₈ 2 ₉ 2 ₁₀ and transferred along a process line (a line along the flow direction of the white arrow in FIG. 1) by a conveyor described later. , And the cans 4, 4, 4, ... for transporting these cans 4, 4, 4, ... to the location corresponding to the tank 2 ₇ , 2 ₈ , 2 ₉ , 2 _10. that several conveyors 6 _{2.6 11.6} as a carrying means (the six in the embodiment)
And _{12.6 13.6 14} - 6 _15, these conveyors 6 _{2.6 11}
· Cans 4 carried by 6 ₁₂ · 6 ₁₃ · 6 ₁₄ · 6 ₁₅
・ 4 ・ 4 ・ ... and a plurality of tanks arranged corresponding to the tanks 2 ₇ 2 ₈ 2 ₉ 2 ₁₀ (4 in this embodiment) for weighing the ingredients contained therein. ) Weighing machine 8 ₁₆
· 8 and ₁₇ · 8 ₁₈ · 8 _19, these weighing machine 8 _16, 8 _17, 8
_{18.8 19} and the conveyor 6 _{2.6 11.6 12.6 13.6 14}
The optoelectronic switches 10 ₂₄ , 10 ₂₅ , 10 ₂₆ , 10 ₂₆ , 10 ₂₇ as a plurality of detecting means for controlling the movement of 6 ₁₅ .

The tanks 2 ₇ 2 ₈ 2 ₉ 2 ₁₀ have the same shape, and a funnel-shaped opening 11 is formed in substantially the lower half of the tubular state. The compound stored inside is discharged. The tank 2 ₇ first step a step of placing the formulation in the can 4 from the second step the step of placing the formulation from the tank 2 ₈ in the can 4, and so on to the tank 2 ₉ and tank 2 ₁₀
The steps of adding the compounding agent to the can 4 are referred to as the third step and the fourth step, respectively.

The cans 4, 4, 4, ... Have a wide-mouth shape so as to easily receive the compounding agent from the tank 2. In addition,
In order to explain the function and effect of the present invention, the tank 2 ₇
Can 4 when transported to the location corresponding to 2 ₈ 2 ₉ 2 ₁₀
Is referred to as a can 4 ₃ 4 ₄ 4 ₅ 4 ₆ for convenience, and the can 4 before being transported to the process corresponding to the tank 2 ₇ , that is, the can 4 in which the compounding agent is not yet contained, is a can. as it is referred to as 4 _1, and be described below.

Conveyor 6 ₂・ 6 ₁₁・ 6 ₁₂・ 6 ₁₃・ 6 ₁₄・
Numeral 6 ₁₅ is a divided belt conveyor or roller conveyor arranged in the flow direction of the line and having a structure having a space in the center. Then, so as to correspond to the space portion of the conveyor 6 ₂ and other conveyors except the conveyer 6 ₁₅ 6 _{1 1} - 6 ₁₂ - 6 ₁₃ - 6 _{14, 12,} the conveyor 6 ₁₁ - 6
Weighing machines 8 ₁₆ and 8 ₁₇ are provided in the lower portions of 6 ₁₃ and 6 ₁₄ , respectively.
・ 8 ₁₈・ 8 ₁₉ are arranged. Note that the reference numeral 12 _20/1
The one shown is 2 _21, 12 _22, 12 _23, conveyor 6 ₁₁ - 6
A respective separate motor provided in _{12.6 13.6 14.} Although not shown, the conveyors 6 ₂ and 6 ₁₅ are also provided with motors for driving them.
Then, at the same time as starting the conveyor 6 ₂ by a motor, not the illustrated corresponds to the conveyor 6 _2, start all conveyor 6 _{11.6 12.6 13.6 14} - 6 _15.

[0014] weighing machine 8 _16, 8 _17, 8 _18, 8 _19, can 4 _3, 4 ₄ Part arm 8 ₁₆ ', 8 _17', 8 ₁₈ ', 8 _19' up and down the space 4 _5, 4 ₆ is adapted to weigh.
Further, when the weighing by the weighing machine 8 ₁₆ 8 ₁₇ 8 ₁₈ 8 ₁₉ exceeds a desired value, an alarm mechanism (not shown) is provided to warn the operator of that fact.

Optoelectronic switch 10 ₂₄ , 10 ₂₅ , 10 ₂₆ ,
When the light emitted from the opto-electronic switches 10 ₂₄ to 10 ₂₇ is blocked by the cans 4 ₃ 4 ₄ 4 ₅ 4 ₆ respectively, 10 ₂₆ 10 ₂₇ each motor 12 ₂₀ 12 ₂₁ 12 ₂₂ 12 ₂₃ and a signal for stopping the movement of each conveyor 6 by automatically stopping the motor (not shown) for driving the conveyors 6 ₂ and 6 ₁₅ to the computer system as the control means.

A computer system (not shown) as control means is electrically connected to the main body 1 to operate the main body 1. The computer system stores in advance necessary data, such as the type and amount of compounding agent required for each type of rubber and the allowable range of the error, and the measurement work based on these necessary data. Is checked.

Further, FIG. 3 shows a weighing value table as a comparing means provided in the computer system, which has the same number of the first measuring machines 8 ₁₆ 8 ₁₇ 8 ₁₈ 8 ₁₉ as the first measuring table.
There are four weight value tables from the weight value table to the fourth weight value table. The first weighing value table to the fourth weighing value table are denoted by reference numerals 13 ₁ , 13 ₂ , 13 ₃ ,.
13 ₄ and each of these tables 13 ₁ , 13 ₂ , 13 ₃
The value measured by the weighing machine 8 ₁₆ 8 ₁₇ 8 ₁₈ 8 ₁₉ is stored in 13 ₄ . The stored value is compared with the measured value in the immediately preceding process except the measured value related to the weighing machine 8 ₁₆ . That is, at least the second of the plurality of weighing machines 8 ₁₆ 8 ₁₇ 8 ₁₈ 8 ₁₉
The measured values measured by the weighing machines 8 ₁₇ , 8 ₁₈ and 8 ₁₉ corresponding to the above steps are compared with the measured values in the preceding step. Specifically, the weighing value of the weighing machine 8 _{17 and} the weighing value of the weighing machine 8 _16; the weighing value of the weighing machine 8 _{18 and} the weighing value of the weighing machine 8 _17; the weighing value of the weighing machine 8 ₁₉ and the weighing machine 8 ₁₈ Are compared.

The operational effects of the compounding agent metering device 1 thus constructed will be described in the order of steps. [First Step] (1) The can 4 ₁ not containing the compounding agent is conveyed to the conveyer 6 ₁₁ by the conveyer 6 ₂ and becomes the can 4 _3, and then the optoelectronic switch 10 ₂₄ is shielded by the can 4 ₃ . Then, the motor 12 ₂₀ stops and the can 4 ₃ also stops. Stop position of the can 4 ₃ is a portion where the can 4 ₃ corresponding to the weighing machine 8 ₁₆ (hereinafter, the position where each can 4 is metered by weighing machine called "metering position".). After that, the weighing machine 8 ₁₆
Arm 8 ₁₆ 'moves upward in the space of conveyor 6 ₁₁ ,
When only the weight of the can 4 ₃ is measured, the measured value is stored as the empty can weighing value C in the first weighing machine table 13 ₁ .

(2) When the empty can weighing value C is stored in the first weighing machine table 13 ₁ , the empty can 4 ₃ is opened from the opening 11 of the tank 2 _7.
The compounding agent will be supplied until a fixed amount is reached. The light weight value of the compounding agent at this time is also stored in the first weighing machine table 13 ₁ as the weighing value 14 ₁ . At that time, if the measured value 14 ₁ is out of the allowable range, the above-mentioned alarm (not shown) sounds to inform the operator and the tank 2 ₇
The supply of the compounding agent is automatically stopped.

(3) If the measured value 14 ₁ is within the allowable range, the arm 8 ₁₆ ′ of the weighing machine 8 ₁₆ descends, and then the conveyor 6 ₂
・ 6 ₁₁・ 6 ₁₂・ 6 ₁₃・ 6 ₁₄・ 6 ₁₅ are driven, and the can 4 ₃ moves toward the weighing position corresponding to the tank 2 _8.
4 will be transported as much as possible. Simultaneously can 4 ₁
Is conveyed to the can 4 ₃ as much as possible toward the weighing position corresponding to the tank 2 ₇ . Similarly, the succeeding cans 4 ₁ are sequentially conveyed, but the following description will be given for the sake of simplification of the description.
Only about.

[Second Step] (4) Next, the can 4 ₃ is transferred to the conveyor 6 by the conveyor 6 ₁₁ .
Can 4 ₄ next is carried to _12, the light emitted from the optoelectronic switch 10 ₂₅ is tricks shielding by the can 4 _4, the motor 12 ₂₁
Stops and the can 4 ₄ stops at the weighing position corresponding to the weighing machine 8 ₁₇ . After such suspension, weighing 14 ₁ empty cans weighing value C of the first weighing machine table 13 _1, a second weighing machine table 13 ₂
And the arm 8 ₁₇ ′ of the weighing machine 8 ₁₇ is transferred to the can 4 ₄
The space of the conveyor 6 ₁₂ is moved upward in order to weigh.

(5) Then, before supplying the compounding agent in the tank 2 ₈ to the can 4 ₄ , the weighing machine 8 ₁₇ weighs the can 4 ₄ . Metric 14 at this time ₁ 'is shifted transferred metered value from the first weighing machine table 13 ₁ to the second weighing machine table 13 ₂ 14 ₁
And the sum of the empty can weight value C. In this case, the value of the measured value 14 ₁ ′ should be the same as or approximately the same as the sum of the measured value 14 ₁ and the empty can weighing value C. If there is a large difference between the two, the weighing machine 8 ₁₆ or the weighing machine 8 ₁₇ is determined to be abnormal by the computer (not shown),
An alarm sounds to inform the operator of this. At the same time, the compounding agent metering device 1 stops its operation.

(6) Measured value 1 compared in (5)
When 4 ₁ ′ is equal to or approximately the same as the sum of the measured value 14 ₁ and the empty can measured value C, the can 4 ₄ is supplied with the compounding agent in the tank 2 ₈ until a fixed amount is reached. The measured value of the weight of the compounding agent at this time is stored in the second weighing machine table 13 ₂ as the measured value 14 ₂ . At this time, if the measured value 14 ₂ is out of the allowable range, the alarm (not shown) sounds to notify the operator and the compounding agent measuring apparatus 1 stops its operation.

(7) If the measured value 14 ₂ is within the allowable range, the arm 8 ₁₇ ′ of the weighing machine 8 ₁₇ descends, and the conveyor 6 thereafter.
_{2.6 11.6 12.6 13.6 14} - 6 ₁₅ cans 4 ₄ together with the driving of
Is transported as much as possible to the can 4 ₅ toward the next weighing position corresponding to the tank 2 ₉ .

[Third Step] (8) Next, the can 4 ₄ is transferred to the conveyor 6 by the conveyor 6 ₁₂ .
Is transported to the ₁₃ cans 4 ₅ next, when the light emitted from the optoelectronic switch 10 ₂₆ is blocked by the can 4 _5, the motor 22 is stopped, can 4 ₅ stops the weighing position corresponding to the metering device 8 ₁₈ . After the stop, the weighing value 14 _{2 of} the second weighing machine table 13 ₂ is shift-transferred to the third weighing machine table ₁ 13 ₃ , and the arm 8 ₁₈ ′ of the weighing machine 8 ₁₈ moves upward in the space portion of the conveyor 6 _13. To move.

[0026] (9) the weighing machine 8 ₁₈ before supplying cans 4 ₅ to the tank 2 ₉ compounding ingredients weighing the can 4 _5. The weight value 14 ₂ ′ at this time is the sum of the weight value 14 ₂ and the weight value 14 ₁ and the empty can weight value C, which are shift-transferred from the second weighing machine table 13 ₂ to the third weighing machine table 13 ₃ . Be compared. Weighing value 1
4 ₂ 'is the weight value 14 ₂ and the weight value 14 which are shift-transferred from the second weighing machine table 13 ₂ to the third weighing machine table 13 _3.
It should be equal to or almost the same as the sum of ₁ and the empty can weighing value C. If there is a large difference, the weighing machine 8 ₁₇ or the weighing machine 8
_The computer (not shown) determines that there is an abnormality in ₁₈ , and an alarm sounds to notify the operator of this. At the same time, the compounding agent metering device 1 stops its operation.

(10) If the measured value 14 ₂ 'compared in (9) is equal to or substantially the same as the sum of the measured value 14 ₂ , the measured value 14 ₁ and the empty can measured value C, the tank 4 in the can 4 ₅ 2 ₉ of formulations for supplying to constant. The measured value of the weight of the compounding agent at this time is the measured value 14 ₃ and the third weighing machine table 1
It is stored in 3 ₃ . At this time, if the measured value 14 ₃ is out of the allowable range, the alarm (not shown) sounds to notify the operator and the compounding agent measuring apparatus 1 stops its operation.

(11) If the measured value 14 ₃ is within the allowable range, the arm 8 ₁₈ ′ of the weighing machine 8 ₁₈ descends, and the conveyor 6 ₂・ 6 ₁₁・ 6 ₁₂・ 6 ₁₃・ 6 ₁₄・ 6 ₁₅ thereafter. The can 4 ₅ moves toward the next weighing position corresponding to the tank 2 ₁₀ as the can 4 ₆ is driven.
It will be transported as much as possible.

[Fourth Step] (12) Next, the can 4 ₅ is conveyed to the conveyor 6 ₁₄ by the conveyor 6 ₁₃ to become the can 4 ₆ , and the optoelectronic switch 10 _{27 is provided.}
Upon exiting the light is blocked by the can 4 _6, motor 23
Stops and the can 4 ₆ stops at the weighing position corresponding to the weighing machine 8 ₁₉ . After the stop, the weight value 14 _{3 of} the third weighing machine table 13 ₃ is shift-transferred to the fourth weighing machine table 13 ₄ , and the arm 8 ₁₉ ′ of the weighing machine 8 ₁₉ moves upward in the space portion of the conveyor 6 _14. To do.

[0030] (13) the weighing machine 8 ₁₉ before supplying formulation of can 4 ₆ to the tank 2 ₁₀ meters the cans 4 _6. The weighing value 14 ₃ ′ at this time is shifted and transferred from the third weighing machine table 13 ₃ to the fourth weighing machine table 13 ₄ to the weighing value 14 ₃ , the weighing value 14 ₂ , the weighing value 14 _1, and the empty can weighing value C. The sum of and is compared by the computer. The measured value 14 ₃ 'is
3rd weighing machine table 13 ₃ to 4th weighing machine table 13 ₄
It should be equal to or almost the same as the sum of the weight value 14 ₃ and the weight value 14 ₂ and the weight value 14 ₁ and the empty can weight value C that have been shifted and transferred to the weighing machine 8 ₁₈ or the weighing machine 8 ₁₈ believed that there is an abnormality in the machine 8 _19, inform the operator sounds the alarm at that time. At the same time, the compounding agent metering device 1 stops its operation.

(14) When the measured value 14 ₃ 'compared in (13) is equal to or almost the same as the measured value 14 ₃ , the can 4 ₆ is supplied with the compounding agent in the tank 2 ₁₀ until a fixed amount is reached.
The measured value of the weight of the compounding agent at this time is stored in the fourth measuring machine table 13 ₄ as the measured value 14 ₄ . At this time, the alarm sounds to inform the operator that the measured value 14 ₄ is out of the allowable range, and the compounding agent measuring apparatus 1 stops its operation.

(15) If the measured value 14 ₄ is within the allowable range, the arm 8 ₁₉ ′ of the weighing machine 8 ₁₉ descends, and the conveyor 6 ₂・ 6 ₁₁・ 6 ₁₂・ 6 ₁₃・ 6 ₁₄・ 6 ₁₅ thereafter. The can 4 ₆ moves from the conveyor 6 ₁₄ to the conveyor 6 ₁₅ with the driving of, and the weighing operation is completed.

Therefore, according to the compounding agent supply device 1, a plurality of weighing machines 8 ₁₆ , 8 ₁₇ , 8 ₁₈ for individually weighing each compounding agent are provided.
・ Because it is equipped with 8 ₁₉ , work time can be shortened. Also, the weighing machine 8 _17, 8 _18, corresponding to more than at least a second step of the plurality of the weighing machine 8 _16, 8 _17, 8 _18, 8 ₁₉
No. 1 to 8 as a comparison means for comparing the measured value measured by 8 ₁₉ with the measured value in the immediately preceding process.
Since the fourth measurement value tables 13 _{1 to} 13 ₄ are included, the measurement values in the previous process can be calibrated in the process line. Therefore, the production efficiency can be improved and the weighing can be performed more accurately than the conventional technique.

[0034]

According to the compounding agent measuring apparatus of the present invention, not only accurate metering is possible but also the compounding time can be shortened.

[Brief description of drawings]

FIG. 1 is a conceptual side view of a compounding agent metering device.

FIG. 2 is a plan view of FIG.

FIG. 3 is a conceptual diagram for explaining a characteristic part of the present invention.

[Explanation of symbols]

1 compounding agent measuring device 2 ₇ storage container 2 ₈ storage container 2 ₉ storage container 2 ₁₀ storage container 4 transfer container 6 ₂ transfer means 6 ₁₁ transfer means 6 ₁₂ transfer means 6 ₁₃ transfer means 6 ₁₄ transfer means 6 ₁₅ transfer means 8 ₁₆ Weighing machine 8 ₁₇ Weighing machine 8 ₁₈ Weighing machine 8 ₁₉ Weighing machine 10 ₂₄ Detecting means 10 ₂₅ Detecting means 10 ₂₆ Detecting means 10 ₂₆ Detecting means 10 ₂₇ Detecting means 13 ₁ First weighing value table 13 ₂ Second weighing value table 13 ₃ 3rd weighing value table 13 ₄ 4th weighing value table

Claims (1)

[Claims] 1. A plurality of storage containers which are arranged in the order of steps and for storing a compounding agent, and a plurality of transfer containers which receive the compounding agents stored in these storage containers and are conveyed along a process line, A transport means for transporting these transport containers to a location corresponding to the plurality of storage containers, and a plurality of the transport containers transported by the transport means and the plurality of transport containers for weighing the compounding agent put therein. By a plurality of weighing machines arranged corresponding to the storage container, a detection means for detecting the movement of these weighing machines and the transport means, and a weighing machine corresponding to at least the second step or more of the plurality of weighing machines. A compounding agent measuring device having a comparing means for comparing a measured measured value with a measured value in a step immediately preceding the measured value.