JPH06339906A - Concrete product producing apparatus - Google Patents

Abstract

PURPOSE:To produce a uniform concrete product having good quality in good yield by simple operation. CONSTITUTION:A memory part 4 storing a first table calculating the number N of rotations to the height (h) of the concrete product produced by a model molding form 2 differentiated only in height and a second table calculating a variable angle theta based on the number N of rotations and exciting force F, a data input part 5 inputting the mount wt. W wherein the height (h) and the wt. of the concrete product and the wt. of the molding form 2 are added and the system wt. (w) of the vibration stand of a variable vibrator 1 and a control part 6 calculating the number N of rotations in the first table 1 of the memory part 4 on the basis of the height (h) from the data input part 5 and calculating the exciting force F becoming vibration acceleration (n) of 1-2 on the basis of the total wt. wherein the mount wt. W and system wt. (w) from the data input part 5 are added and controlling the driving a variable vibrator 1 on the basis of the variable angle theta of the second table of the memory part 4 corresponding to the calculated exciting force F and the number of rotations and the calculated number N of rotations are provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a concrete product manufacturing apparatus for manufacturing a comparatively large concrete product while vibrating a molding frame or the like with a variable vibrator.

[0002]

2. Description of the Related Art Generally, when manufacturing concrete products, in order to manufacture better concrete products, the mold should be uniformly filled with concrete, and the concrete filled in the mold should be deaerated and degassed. Need to bubble. In this way, the mold is uniformly filled with concrete, and in order to deaerate and defoam the concrete, the vibration of a vibration having a predetermined amplitude is applied to the mold and the concrete filled in the mold using a vibrator. It is necessary to give a vibration force.

Here, a plurality of, for example, two, which can change appropriate vibrations and intersecting angles corresponding to the weight of the molding die and the weight of the concrete filled in the molding die, and the like.
An appropriate vibration force due to a combined eccentric load of two eccentric weights will be described. First, let m be the synthetic mass of the eccentric weight,
The combined eccentric distance of the eccentric weight is r, the number of revolutions of the vibrator, that is, the rotating shaft is N, the angular velocity of the rotating shaft is ω (radian), and the weight of the concrete form (including the pallet) is the weight of the concrete product. Letting W be the mounting weight obtained by adding, and w be the system weight of the vibration table of the variable vibrator, the exciting force F is

[Equation 3] Becomes

Further, the vibration acceleration n received by concrete (concrete product), molding form, etc. is

[Equation 4] Becomes Furthermore, the amplitude S is

[Equation 5] Becomes

From the above equations (4) and (5), in order to keep the vibration acceleration n constant, the mounting weight W and the system weight w are set.
It is understood that the exciting force F may be increased or decreased according to the sum of the above, and that the rotational speed N may be increased or decreased to increase or decrease the exciting force F. Therefore, even if the placement weight W and the system weight w are changed by changing the type of the concrete product, if the exciting force F is kept constant, the vibration acceleration n and the amplitude S applied to the concrete are changed. Since the vibration force F, vibration acceleration n, and amplitude S suitable for the concrete product are lost, the rotation speed N and the eccentric weight intersect so that the vibration force F, vibration acceleration n, and amplitude S are suitable for the concrete product. It is necessary to change the angle, ie the variable angle.

The higher the height of the concrete product and the higher the frequency of vibration, the greater the amount of vibration attenuation. Therefore, the vibration frequency (rotation speed N) is reduced to reduce the vibration. While reducing the effect, synthetic mass m
And the combined eccentric distance r is increased to make the vibration acceleration n constant. Also, taking into consideration the state of mixing up of concrete (slump value), the rotation speed N is adjusted so that the exciting force F, the vibration acceleration n and the amplitude S suitable for the concrete product are obtained.
And it is necessary to change the variable angle.

As described above, the variable vibrator capable of changing the exciting force F and the like changes the variable angle of the shaft rotated by the power of the motor, for example, a pair of eccentric weights attached to the rotary shaft, to change the composite mass. m and the combined eccentric distance r are changed. Then, the one in which the combined eccentric load can be changed without stopping the motor to change the exciting force F and the like, for example, the one described in Japanese Patent Publication No. 4-1826, and the motor can be stopped. It has been proposed to change the combined eccentric load to change the exciting force F and the like.

Therefore, when manufacturing each concrete product, the number of rotations at the time of manufacturing each concrete product,
The variable angle, slump value, etc. are manually set to appropriate values each time based on, for example, the excitation force F of the second table (excitation force table) shown in FIG. 3, and the excitation force suitable for each concrete product is set. By setting F, vibration acceleration n, and amplitude S, a better concrete product is manufactured.

[0009]

When manufacturing each concrete product, the conventional concrete product manufacturing apparatus manually rotates each concrete product on the basis of the number of revolutions, the variable angle, the slump value, etc. at the time of manufacturing each concrete product. The number and variable angle are set. Therefore, when manufacturing multiple concrete products, for example, cyclically, it is necessary to manually set the rotation speed and the variable angle each time the concrete products change.
The operation becomes troublesome.

If the rotational speed and the variable angle are set incorrectly, the concrete product will be defective. Although various variable vibrators that can change the exciting force by changing the combined eccentric load have been proposed, such variable vibrators can be used to easily operate the rotation speed and the variable angle. No concrete product manufacturing apparatus has been proposed so far, which is capable of setting a concrete product and capable of manufacturing a concrete product of uniform quality.

The present invention has been made in order to meet the above-mentioned demands, and provides a concrete product manufacturing apparatus which is easy to operate and is capable of manufacturing a concrete product of uniform quality with good yield. Is.

[0012]

According to the present invention, a molding form mounted on a variable vibrator and concrete filled in the molding form are provided with a vibration corresponding to the rotation speed of the variable vibrator and a plurality of eccentric weights. In a concrete product manufacturing device that manufactures multiple concrete products by deaerating and defoaming the concrete while appropriately applying the vibration force due to the combined eccentric load with a changed angle with the variable vibrator, only the height is changed. The memory for storing the number of revolutions with respect to the height of each concrete product manufactured by the model molding form in the first table, and the second table for determining the angles of a plurality of weights based on the number of revolutions and the vibration force, that is, the variable angle Section, the height of the concrete product to be manufactured, the mounting weight obtained by adding the weight of the concrete product to be manufactured and the weight of its molding form, and the system weight of the vibration table of the variable vibrator. Based on the height from the data input section for inputting the data, the number of rotations is obtained from the first table of the storage section, and the total weight obtained by adding the mounting weight from the data input section and the system weight is calculated. Based on the obtained exciting force and the rotational speed, the variable vibrator of the second table of the storage unit corresponding to the obtained exciting force and the rotational speed is controlled based on the obtained rotational speed. And a control unit.

The storage unit stores, as a first table, the number of rotations with respect to the height of the concrete product manufactured by the two model molding forms having different heights, and the control unit stores the number of rotations with respect to the first unit. The number of rotations corresponding to the height from the data input section is obtained based on the straight line defined by the data of one table. Further, the data input section includes a height sensor that detects and outputs the height of the concrete product to be manufactured.

Further, the data input section is provided with a weight sensor for detecting and outputting the weight placed on the molding frame. The data input unit includes a molding frame sensor that detects and outputs the number of molding frames, and the control unit controls the weight obtained by multiplying the mounting weight from the data input unit by the number of molding frames from the molding frame sensor. Is the mounting weight. The storage unit stores the first table for each slump value, and the data input unit can also input the slump value of concrete,
The control unit obtains the rotation speed in the first table of the storage unit based on the slump value and the height from the data input unit.

Further, the storage unit stores the first table of set slump values, the data input unit can also input the slump value of concrete, and the control unit stores the first table of the storage units based on the height from the data input unit. The rotation speed is obtained from one table, and the exciting force F that gives a predetermined vibration acceleration is obtained based on the total weight, and is corrected based on the slump value D _s from the data input section and the slump value D _i set in the storage section. The value f is calculated by the equation (6),

[Equation 6] However, α is a proportional constant, and after obtaining the corrected excitation force F _o using the correction value f and the excitation force F by the equation (7),

[Equation 7] The variable vibrator is drive-controlled based on the corrected exciting force F _o, the variable angle of the second table of the storage unit corresponding to the calculated rotation speed, and the calculated rotation speed.

The storage unit stores the system weight as a third table. Further, the control unit is the first
At least one of the third to third tables is stored. Furthermore, the first table and the second table are stored in the storage unit.
The data of the table or / and the third table is stored, or the first table, the second table or / of the storage unit is stored.
And a data setting correction unit for correcting the data of the third table. Further, a display unit is provided for displaying the number of rotations and the variable angle, the height, the total weight, the vibration force, the slump value, and / or the number of molding frames, which drive and control the variable vibrator based on the control of the control unit. Is.

[0017]

The control unit according to the present invention obtains the rotational speed from the first table of the storage unit based on the height from the data input unit, and also obtains the exciting force that provides a predetermined vibration acceleration based on the total weight. Then, a variable angle is obtained on the second table based on the obtained rotational speed and the excitation force (including the corrected excitation force corrected by the slump value), and the variable vibrator is driven and controlled at the obtained variable angle and the obtained rotational speed. To do. Each data in the storage unit is set and corrected by the data setting correction unit. Further, each data when driving and controlling the variable vibrator is displayed on the display unit.

[0018]

1 is a block diagram showing a schematic structure of a concrete product manufacturing apparatus according to an embodiment of the present invention, and FIG. 2 is a data table diagram schematically showing an example of data in a first table of a storage unit. 3 is a data table diagram schematically showing an example of data in the second table of the storage unit. In these figures, 1 indicates a variable vibrator, for example, Japanese Patent Publication No. 4-
As described in Japanese Patent No. 1826, it is possible to change the exciting force, the vibration acceleration and the amplitude due to the combined eccentric load without stopping the motor.

Reference numeral 2 denotes a molding frame mounted on the variable vibrator 1, which is used for manufacturing a predetermined concrete product. Reference numeral 3 denotes a data setting correction unit, which is the height h of the concrete product (molding form 2), the slump value of the concrete, the rotation speed N of the variable vibrator 1, the exciting force F, the variable angle θ and the drive control time, the molding The number of molding molds of the mold 2 can be set, and the set data can be corrected.

Reference numeral 4 denotes a storage unit for storing each data input from the data setting / correction unit 3 as first and second tables shown as an example in FIGS. Reference numeral 5 denotes a data input section, which is the height h of the concrete product, the mounting weight W obtained by adding the weight of the concrete product and the weight of the molding form 2, the system weight w of the vibrating table of the variable vibrator 1, the concrete slump. The value, the number of molding forms, the amount of concrete for each concrete product, etc. are input. Reference numeral 6 denotes a control unit, which controls the variable vibrator 1 based on the output of the data input unit 5 as will be described later, and causes the display unit 7 to display the control contents of the variable vibrator 1 and the like.

The first table shown in FIG. 2 will be described. Molding molds 2 for producing concrete products having heights h ₁ to h _n are made of the same material and have the same thickness. It is a model molding form made. Then, it is shown that the proper rotation speed N when the concrete product having the height h _i (i = 1 to n) is manufactured is the rotation speed N _i . The rotation speeds N _{1 to} N _n are optimum values that satisfy the vibration acceleration n when the slump value obtained empirically is 8, for example.

Next, referring to the second table of FIG. 3, if two of the rotational speed N, the exciting force F and the variable angle θ are known, the remaining rotational speed N, the exciting force F or the variable angle θ is obtained. This is a vibrating force table that can be used, but in the present invention, it is used to obtain the variable angle θ based on the rotational speed N and the vibrating force F. The data in the second table is unique to each variable vibrator 1.

Next, the production of concrete products will be described. First, each data obtained empirically by manufacturing each concrete product of height h ₁ to h _n with a model molding form, for example, each appropriate rotation speed at the slump value 8 shown in FIG. Data and the like are input from the data setting correction unit 3 and stored in the storage unit 4. With each data stored in the storage unit 4 in this way, the molding frame 2 is placed and fixed on the variable vibrator 1 using a predetermined device.

[0024] Then, if the concrete product of the height h _i is mold frame 2, the height h _i from the data input unit 5, and operates the start button to input the mounting置重amount W and system weight w, control The section 6 finds the rotation speed N _i in the first table of the storage section 4 corresponding to the height h _i from the data input section 5, and adds the mounting weight W from the data input section 5 and the system weight w. A predetermined vibration acceleration n based on the total weight, for example, 1
The exciting force F which is a value of ~ 2 is obtained by the equation (8),

[Equation 8] The variable vibrator 1 is driven and controlled, for example, for 2 minutes based on the obtained excitation force F and the variable angle θ of the second table of the storage unit 4 corresponding to the determined rotation speed N _i , and the height h
_{Since i} , the number of molding frames 1, the total weight, the number of revolutions N _i and the variable angle θ are displayed on the display unit 7, a specified amount of concrete with a slump value of 8 is supplied from the hopper (not shown) to the molding frame 2 during this period. To do.

After confirming the finished state of each concrete product manufactured by driving and controlling the variable vibrator 1 as described above, if there is a concrete product with a poor finished state, the concrete product is finished. According to the state, the proper rotation speed N _i of the first table is input from the data setting correction unit 3 and the corresponding data in the storage unit 4 is corrected.

As described above, according to the embodiment of the present invention, the concrete product is manufactured by the simple operation of inputting the height h, the mounting weight W, the system weight w, etc. from the data input section 5. Adjustable vibrator 1
Since it is possible to drive and control the concrete, it is possible to produce a concrete product of uniform quality with good yield. Since each data in the storage unit 4 can be set and corrected from the data setting correction unit 3, by storing the data in which various conditions such as the shape of the molding frame 2 are added to the storage unit 4, High quality concrete products can be manufactured with high yield. Further, since each data is displayed on the display unit 7, it is possible to confirm the drive control state of the variable vibrator 1 by displaying the data, and the display data is used as a reference material when the data in the storage unit 4 is corrected. Can be

FIG. 4 is a block diagram showing a schematic structure of a concrete product manufacturing apparatus according to another embodiment of the present invention. The same parts as those in FIG. In FIG. 3, reference numeral 5a denotes an input unit, which outputs the input concrete slump value or the like to the control unit 6. 5
Reference numeral b denotes a height sensor, which detects, for example, the upper end of the molding frame 2 and outputs the height h to the control unit 6, or reads a bar code attached to a predetermined portion of the molding frame 2 to determine the height h. It is output to the control unit 6.

Reference numeral 5c denotes a weight sensor, which is, for example, a bar code reader which reads a bar code attached to a predetermined portion of the molding frame 2 and outputs the mounting weight W to the control section 6.
Reference numeral 5d denotes a molding frame sensor, which is moved in a direction parallel to the side surface of the variable vibrator 1 and is mounted on the variable vibrator 1 to detect the number of molding frames of the fixed molding frame 2, and the control unit 6 is detected. It is what is output. The input unit 5a, the height sensor 5b, the weight sensor 5c, and the molding frame sensor 5d constitute a data input unit. The start button for starting the control of the control unit 6 is provided in the input unit 5a or the control unit 6.

When the data input section is constructed as in the embodiment of FIG. 4, the height h, the mounting weight W, and the number of molding frames are the height sensor 5b, the weight sensor 5c, the molding frame sensor 5d to the control section 6. Is output to obtain the required mounting weight W by multiplying the mounting weight W by the number of molding frames, the input error of the height h and the mounting weight W is eliminated, and the yield is improved. The operation becomes even easier.

In the above embodiment, the first table for each model forming mold is stored in the storage unit 4, but the number of revolutions N for two typical model forming forms is stored in the first table. Alternatively, the rotation speed N with respect to the height h from the data input unit 6 may be stored based on the straight line defined by the data of the first table. In addition, although the first and second tables are stored in the storage unit 4 as an example, if it is not necessary to correct each data, the first table and / or the second table may be stored in the control unit 6. Can also obtain the same effect.

Further, the system weight w has been described as an example in which it is inputted from the data input section 5 or the input sections 5a and 5aa, but when the system weight w is stored in the storage section 4 or the control section 6 as a third table, the system weight w is stored. You can eliminate typing mistakes in w,
The yield is improved and the operation is much easier. Although the first table has been described as one slump value, the slump value of concrete may fluctuate, so the first table is stored for each slump value, and the control unit 6 controls the data input unit 5 from the data input unit 5. Since the number of rotations corresponding to the slump value and the height can be obtained from the first table, the slump value can also be dealt with, so that a concrete product of higher quality can be manufactured with high yield.

The first table has one set slump value, and the control unit 6 controls the slump value D from the data input unit 5.
_The correction value f is calculated based on _s and the set slump value D _i (9).
Calculated by the formula,

[Equation 9] However, α is a proportional constant, and using this correction value f, the corrected excitation force F _o of the excitation force F that makes the vibration acceleration n 1 to 2 at the rotation speed N found in the first table is expressed by the formula (10). After asking

[Equation 10] With the configuration in which the variable vibrator 1 is drive-controlled based on the corrected excitation force F _o, the variable angle θ of the second table corresponding to the obtained rotation speed N, and the obtained rotation speed N, the slump value can be also controlled. Since they can be dealt with, it is possible to manufacture higher quality concrete products with high yield.

Further, the data input unit 5 or the input units 5a, 5 is used even though the data needs to be input.
If necessary data is not input from aa, the display unit 7
By making a warning display prompting the user to input the data, it is possible to reduce data input mistakes.

[0034]

As described above, according to the present invention, an appropriate condition for manufacturing the concrete product can be obtained by a simple operation of inputting height, placement weight, system weight and the like from the data input section. Since the variable vibrator can be driven and controlled, it is possible to manufacture uniform and high-quality concrete products with high yield. Since the height sensor, the weight sensor, and the molding die sensor are provided in the data input unit, the height, the mounting weight, and the number of molding die frames are supplied from each sensor to the control unit, so that a data input error can be prevented. As the yield is improved, the operation becomes even easier.

Further, since the data for each slump value is stored in the first table, it is possible to correspond to the slump value, so that it is possible to manufacture a concrete product of higher quality with a good yield. Further, the first table is set as one set slump value, a correction value is obtained based on the slump value from the data input unit and the set slump value, and the corrected excitation force of the excitation force is obtained using this correction value. After that, since the variable vibrator is driven and controlled based on the corrected excitation force, the variable angle of the second table corresponding to the calculated rotation speed, and the calculated rotation speed, the slump value can also be supported. Therefore, a higher quality concrete product can be manufactured with high yield.

Since each data can be set and corrected by the data setting / correction unit, by storing the data in consideration of various conditions such as the shape of the molding form, a concrete product of higher quality can be produced at a high yield. Can be manufactured well. Also, since each data is displayed on the display unit, it is possible to confirm the drive control status of the variable vibrator by displaying this data, and use the display data as a reference material when modifying the data in the storage unit. You can

[Brief description of drawings]

FIG. 1 is a block diagram showing a schematic configuration of a concrete product manufacturing apparatus according to an embodiment of the present invention.

FIG. 2 is a data table diagram schematically showing an example of data in a first table of a storage unit.

FIG. 3 is a data table diagram schematically showing an example of data in a second table of a storage unit.

FIG. 4 is a block diagram showing a schematic configuration of a concrete product manufacturing apparatus according to another embodiment of the present invention.

[Explanation of symbols]

 1 Variable Vibration Machine 2 Mold Forming 3 Data Setting Modifying Unit 4 Memory 5 Data Inputting 5a Input 5b Height Sensor 5c Weight Sensor 5d Molding Form Sensor 6 Control 7 Display

Claims (11)

[Claims] 1. A synthetic eccentric in which a molding form mounted on a variable vibrator and concrete filled in the molding form are vibrated corresponding to the number of revolutions of the variable vibration and a plurality of eccentric weight angles are changed. In a concrete product manufacturing device that manufactures a plurality of concrete products by deaerating and defoaming the concrete while appropriately applying an exciting force due to a load with the variable vibrator, a model molding form that differs only in height A storage unit for storing the number of revolutions with respect to the height of the concrete product to be manufactured in 1. in the first table, and the second table for obtaining the angles of the plurality of weights, that is, the variable angles based on the number of revolutions and the exciting force; The height of the concrete product, the mounting weight obtained by adding the weight of the concrete product to be produced and the weight of the molding form thereof, and the system of the vibrating table of the variable vibrator. Based on the data input section for inputting the quantity and the first table of the storage section based on the height from the data input section, the number of rotations was obtained, and the mounting weight and the system weight from the data input section were added. An exciting force that provides a predetermined vibration acceleration is obtained based on the total weight, and the variable vibration of the second table of the storage unit corresponding to the obtained exciting force and the number of rotations and the obtained number of rotations are used. A concrete product manufacturing apparatus, comprising: a control unit for driving and controlling the machine. 2. The concrete product manufacturing apparatus according to claim 1, wherein the storage unit stores the number of rotations with respect to the height of the concrete product manufactured by two model molding forms having different heights, respectively. The concrete product is stored as a table, and the control unit obtains a rotation speed corresponding to a height from the data input unit based on a straight line defined by the data of the first table of the storage unit. Manufacturing equipment. 3. The concrete product manufacturing apparatus according to claim 1, wherein the data input unit includes a height sensor that detects and outputs the height of the concrete product to be manufactured. Concrete product manufacturing equipment characterized in that 4. The concrete product manufacturing apparatus according to any one of claims 1 to 3, wherein the data input unit detects and outputs a placement weight described in the molding frame. A concrete product manufacturing apparatus comprising: 5. The concrete product manufacturing apparatus according to claim 1, wherein the data input unit includes a molding frame sensor that detects and outputs the number of molding frames, and the control unit. A concrete product manufacturing apparatus, wherein a weight obtained by multiplying a mounting weight from the data input unit by a number of molding frames from the molding frame sensor is a mounting weight. 6. The concrete product manufacturing apparatus according to claim 1, wherein the storage unit stores a first table for each slump value, and the data input unit stores the slump value of the concrete. The concrete product manufacturing apparatus, wherein the control unit obtains the rotation speed in the first table of the storage unit based on the slump value and the height from the data input unit. 7. The concrete product manufacturing apparatus according to claim 1, wherein the storage unit stores a first table of set slump values, and the data input unit stores slump values of the concrete. The control unit obtains the rotational speed in the first table of the storage unit based on the height from the data input unit, and obtains the excitation force F that provides a predetermined vibration acceleration based on the total weight. At the same time, the correction value f is set to (1) based on the slump value D _s from the data input unit and the set slump value D _{i of the} storage unit.
Calculated by the formula, However, α is a proportional constant. After the corrected excitation force F _o is obtained by the equation (2) using the correction value f and the excitation force F, A concrete product manufacturing method, characterized in that the variable vibrator is drive-controlled based on the corrected excitation force F _o and the variable angle of the second table of the storage unit corresponding to the calculated rotation speed, and the calculated rotation speed. apparatus. 8. The concrete product manufacturing apparatus according to any one of claims 1 to 7, wherein the storage unit stores a system weight as a third table. . 9. The concrete product manufacturing apparatus according to claim 1, wherein the control unit stores at least one of a first table to a third table. Concrete product manufacturing equipment. 10. The concrete product manufacturing apparatus according to claim 1, wherein the storage unit stores data of the first table, the second table, and / or the third table, or the storage. A concrete product manufacturing apparatus, comprising: a data setting correction unit that corrects the data of the first table, the second table, and / or the third table of the section. 11. The concrete product manufacturing apparatus according to claim 1, wherein a rotation speed and a variable angle for driving and controlling the variable vibrator,
A concrete product manufacturing apparatus, comprising a display unit for displaying height, total weight, vibration force, slump value and / or the number of molding forms under the control of the control unit.