Concrete PC component placing equipment

Abstract

The present invention discloses a concrete PC component material distribution equipment. The material distribution frame of the present invention is provided with a material distribution trolley that moves longitudinally, the material distribution trolley is provided with a material distribution trolley that moves laterally, a spiral material distribution machine driven by a material distribution motor is fixed at the lower part of the material distribution trolley, and an image acquisition device is fixed on the spiral material distribution machine. The image acquisition device is connected to a programmable computer for transmission. The programmable computer receives the image information of the mold from the image acquisition device before distributing the material; and compares it with the pre-stored image information to obtain the material distribution speed of the material distribution motor obtained according to the mold cavity volume under the corresponding image and control the material distribution motor to rotate the material according to the material distribution speed. The present invention accurately identifies the specific mold through the camera equipment, accurately obtains the material distribution speed required by the mold, makes the material distribution volume consistent with the mold cavity volume, realizes accurate material distribution, and solves the problem that the material distribution equipment is not uniform and accurate enough.

Description

Technical Field

[0001] The invention relates to a concrete PC component distribution device, belonging to the production field of PC components. Background Art

[0002] PC components are prefabricated concrete parts, which are important components of prefabricated buildings. They are prefabricated in factories and then assembled on construction sites. The factory-based production standards are unified, the quality is high, and the production environment is superior with less dust pollution. The rise of prefabricated buildings and the emergence of PC components have greatly improved the quality of buildings and shortened the construction time of buildings. The production of PC components is done by laying concrete materials in molds and then curing them. During the production process, concrete materials need to be laid in the molds. The existing distribution equipment is divided into two types: paving and spiral. Among them, the paving type distribution machine has a serious problem of uneven distribution; although the spiral distribution machine distributes evenly, it still has the problem of uneven and inaccurate distribution. Summary of the invention

[0003] The purpose of the present invention is to provide a concrete PC component distribution equipment to solve the problem that the distribution equipment in the prior art is not uniform and accurate enough.

[0004] In order to achieve the above purpose, the present invention adopts the following technical scheme: a concrete PC component distribution equipment, including a distribution frame arranged on a ground foundation, the distribution frame has two parallel longitudinal guide rails, a distribution trolley moving longitudinally on the longitudinal guide rails is provided between the two longitudinal guide rails, the distribution trolley has two parallel transverse guide rails, a distribution trolley moving transversely on the transverse guide rails is provided between the two transverse guide rails, a spiral distribution machine driven by a distribution motor for distribution is fixed at the lower part of the distribution trolley, an image acquisition device is fixed on the spiral distribution machine, the image acquisition device is connected to a programmable computer for transmission, and the programmable computer receives image information of the mold from the image acquisition device before distribution; and compares it with the pre-stored image information to obtain the distribution speed of the distribution motor obtained according to the mold cavity volume under the corresponding image and control the distribution motor to rotate the distribution according to the distribution speed.

[0005] The spiral feeder is also provided with a distance measuring device for measuring vertical distance. The distance measuring device measures the distance between the concrete material surface and the distance measuring device after the feeder trolley completes the feed stroke L and transmits it to the programmable computer. The programmable computer compares the distance with the pre-stored distance under the corresponding image, and obtains the distance difference between the two when the distance is greater than the pre-stored distance. At the same time, the mold cross-sectional area value under the image is called and multiplied by the distance difference to obtain the filling volume A1, and the filling speed of the feeder motor during filling is obtained according to the formula N1=A1V / (BL) and the feeder motor is controlled to fill the material at the speed, wherein: V is the moving speed of the feeder trolley; B is the feed volume per rotation of the feeder motor.

[0006] The cloth rotation speed is obtained according to N=AV / (BL) and pre-stored in the corresponding picture, wherein: L is the cloth stroke of the cloth trolley; A is the cloth volume in the corresponding image; V is the moving speed of the cloth trolley; and B is the cloth volume per rotation of the cloth motor.

[0007] The programmable computer controls the speed of the cloth-making motor through the frequency converter. The digital signal from the programmable computer is converted into an analog signal through a D / A converter. The output end of the D / A converter is connected to the frequency control end of the frequency converter to control the output frequency of the frequency converter and thus control the speed of the cloth-making motor.

[0008] The image acquisition device is a CCD camera.

[0009] The distance measuring device is a laser distance measuring device.

[0010] The present invention can accurately identify a specific mold through a camera device, and accurately obtain the cloth rotation speed required by the mold, so that the cloth volume is consistent with the mold cavity volume, and accurate cloth is achieved, solving the problem that the cloth equipment does not distribute the cloth uniformly and accurately.

[0011] The present invention detects whether the concrete surface after the distribution is completed meets the distribution requirements, that is, whether the mold cavity has been filled with concrete materials. If the mold cavity is not filled with concrete materials, the distance measured by the distance measuring device will be larger than the pre-stored distance. At this time, the volume of the material to be replenished is obtained through the cross-sectional area of ​​the mold cavity, and the replenishment speed is obtained for replenishment, thereby further ensuring the accuracy of the replenishment and solving the problem of the distribution equipment's material distribution being not uniform and accurate enough. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a state diagram of the cloth cart of the embodiment of the present invention at one end of the mold;

[0013] Figure 2 This is a state diagram of the cloth cart of the embodiment of the present invention at the other end of the mold;

[0014] Figure 3 is a schematic diagram of the three-dimensional structure of an embodiment of the present invention;

[0015] Figure 4 is a front view of an embodiment of the present invention;

[0016] Figure 5 1 is a control principle diagram of an embodiment of the present invention. DETAILED DESCRIPTION

[0017] An embodiment of a concrete PC component placing device, in Figure 1-Figure 5In the figure, the material distribution frame 1 has two longitudinal guide rails 2, which are parallel to each other and fixed on the ground by a column. Two parallel sets of mold platform running wheels 3 are arranged below the two longitudinal guide rails 2. The two sets of mold platform running wheels 3 are located between the two longitudinal guide rails 2. The mold platform 4 is arranged on the mold platform running wheels 3. Every few mold platform running wheels have a driving wheel driven by a motor, so that the mold platform 4 can move on the mold platform running wheels. The mold platform is composed of a plurality of mold platforms that move on the mold platform running wheels in sequence. A mold 5 is arranged on each mold platform 4, and the mold 5 moves with the mold platform. Between the two longitudinal guide rails 2, there is a material distribution trolley 6 that moves longitudinally on the longitudinal guide rails 2. The material distribution trolley 6 has two parallel transverse guide rails 7. Between the two transverse guide rails 7, there is a material distribution trolley 8 that moves transversely on the transverse guide rails 7. A spiral distribution machine 9 is fixed at the bottom of the distribution trolley 8. The spiral distribution machine 9 is driven by a material distribution motor 13. The above technical contents are all existing technologies and will not be described in detail here. A CCD camera 10 and a laser distance measuring device 11 are fixedly arranged on one side of the spiral feeder 9, and the sides of the CCD camera 10 and the laser distance measuring device 11 are arranged perpendicular to the longitudinal guide rail. A programmable computer 12 is fixedly arranged on the other side of the spiral feeder 9. Figure 5 As shown, the CCD camera 10 is connected to the programmable computer 12 for transmission, and transmits image information to the programmable computer 12. The programmable computer pre-stores images of each mold that needs to be laid. When the mold moves to the front of the spiral cloth distributing machine with the mold platform, the CCD camera 10 will scan the mold, and the programmable computer will receive the image information of the mold before the cloth is laid, and find the corresponding pre-stored information after comparing it with the pre-stored image information, obtain the cloth speed under the corresponding image, and control the cloth distributing motor to rotate the cloth according to the cloth speed. The cloth distributing method and cloth control of the spiral cloth distributing machine in this embodiment are the same as the control method in the prior art, and will not be described in detail here. The cloth distributing speed in this embodiment is obtained based on the volume of the mold cavity, and its formula is: the cloth distributing speed is obtained based on N=AV / (BL) and pre-stored in the corresponding picture, where: L is the cloth distributing stroke of the cloth distributing trolley; A is the cloth volume under the corresponding image; V is the moving speed of the cloth distributing trolley; B is the cloth volume per rotation of the cloth distributing motor.

[0018] The laser distance measuring device 11 is used to measure the vertical distance. After the material distribution vehicle completes the material distribution stroke L, the distance between the concrete material surface and the distance measuring device is measured and transmitted to the programmable computer. The so-called material distribution stroke refers to the distance traveled by the material distribution vehicle to complete a mold. The programmable computer compares the distance between the received concrete material surface and the distance measuring device with the pre-stored distance under the corresponding image. The pre-stored distance is the distance that the laser distance measuring device should measure after the mold cavity is filled with concrete. When the distance between the received concrete material surface and the distance measuring device is greater than the pre-stored distance, the distance difference between the two is obtained. At the same time, the mold cross-sectional area value under the image is called and multiplied by the distance difference to obtain the filling volume A1, and the filling speed of the material distribution motor during filling is obtained according to the formula N1=A1V / (BL) and the material distribution motor is controlled to fill the material according to the speed, where: V is the moving speed of the material distribution vehicle; B is the material distribution volume per rotation of the material distribution motor. The filling process is also the same as the material distribution process in the prior art, which is actually a material distribution process, but the material distribution speed is slower.

[0019] The programmable computer controls the speed of the cloth-making motor by using a frequency converter 17. The digital signal from the programmable computer is converted into an analog signal by a D / A converter 18. The output end of the D / A converter 18 is connected to the frequency control end of the frequency converter to control the output frequency of the frequency converter and thus control the speed of the cloth-making motor. Figure 5 As shown, the control signal from the programmable computer is a binary digital signal, which is converted into an analog signal after passing through the D / A converter 18, and outputs a voltage value to be added to the frequency control end of the inverter, thereby controlling the output frequency of the inverter to achieve the purpose of controlling the speed of the cloth motor. This is a conventional motor speed control method.

[0020] exist Figure 5 In the embodiment, the feeding control of the spiral feeder is also integrated in the programmable computer. The feeding signal output by the programmable computer, that is, the signal for starting feeding, is output by the programmable computer and then turned on through the photoelectric coupler 14, wherein the photoelectric coupler is used to isolate and prevent the interference of the industrial frequency power supply to the computer system. The normally open contact of the relay J is closed to drive the AC contactor KM1, and the normally open contact of KM1 is closed to control the solenoid valve coil, and then the solenoid valve 16 controls the opening of the feeding port to realize the start of feeding of the spiral feeder. When feeding is finished, the programming computer no longer outputs signals, and the solenoid valve controls the closing of the feeding port. The feeding control is consistent with the feeding control in the prior art.

[0021] The cloth speed in this embodiment is obtained according to N=AV / (BL) and pre-stored in the corresponding picture, where: L is the cloth travel of the cloth cart; A is the cloth volume in the corresponding image; V is the moving speed of the cloth cart; B is the cloth volume per rotation of the cloth motor. In other embodiments, the accurate cloth speed corresponding to each mold can also be obtained through experiments.

[0022] The image acquisition device in this embodiment is a CCD camera. In other embodiments, other industrial camera devices of different types may also be selected.

[0023] The distance measuring device in this embodiment is a laser distance measuring device. In other embodiments, other industrial distance measuring devices of different types may also be selected.

[0024] When in use, first obtain the image information of a batch of molds that need to be laid and pre-store it in the programmable computer. Because different projects require different molds, and the same project also requires multiple types of molds, mold identification is required when laying. This identification process is completed by the camera. When the camera scans an image that is consistent with a pre-stored image, the programmable computer locks the image and calls the data information under the image. This data information can be pre-stored in the database. The programmable computer can call the database information. In the laying stage, the pre-stored fabric speed is directly called. After the programmable computer calls the corresponding fabric speed, it outputs a control signal, and the frequency converter makes the fabric motor lay the fabric at this speed. After the material is laid, the programmable computer receives the distance data from the laser distance measuring device and calls the distance data under the mold image being laid. The data called can also be the data pre-stored in the database, and the two data are compared. If the received data is greater than the pre-stored data, the data difference is obtained, and the cross-sectional area of ​​the mold cavity under the mold image being laid is called, and it is multiplied by the data difference to obtain the volume of the material to be replenished, and the filling speed of the material motor during the filling is obtained according to the formula N1=A1V / (BL) and the material motor is controlled to fill the material according to the speed, where: V is the moving speed of the material cart; B is the volume of the material per rotation of the material motor. Of course, V and B are fixed data pre-entered into the program. The control of the filling speed is the same as the control of the material speed, both through the frequency converter. The operation completed by the programmable computer is completed through a customized program, and the programming can be completed using computer programming languages ​​such as matlab, Python, c or c++, and the specific program code does not need to be repeated.

[0025] In this embodiment, the cloth rotation speed is directly pre-stored. In other embodiments, the cloth rotation speed can also be calculated by pre-storing the mold cross-sectional area and the mold depth.

Claims

1. A concrete PC component placing device, comprising a placing frame arranged on a ground foundation, the placing frame having two parallel longitudinal guide rails, a placing trolley moving longitudinally on the longitudinal guide rails between the two longitudinal guide rails, the placing trolley having two parallel transverse guide rails, a placing trolley moving transversely on the transverse guide rails between the two transverse guide rails, a spiral placing machine driven by a placing motor for placing materials is fixed at the bottom of the placing trolley, characterized in that: The spiral material distribution machine is fixedly provided with an image acquisition device, which is connected to a programmable computer for transmission. The programmable computer receives image information of the mold from the image acquisition device before the material is distributed; The spiral feeder is also provided with a distance measuring device for measuring the vertical distance. The distance measuring device measures the distance between the concrete surface and the distance measuring device after the feed truck completes the feed stroke L and transmits it to the programmable computer. The programmable computer compares the distance with the pre-stored distance under the corresponding image, and obtains the distance difference between the two when the distance is greater than the pre-stored distance. At the same time, the mold cross-sectional area value under the image is called and multiplied by the distance difference to obtain the filling volume. The product A1 is obtained, and the feeding speed of the cloth motor during feeding is obtained according to the formula N1=A1V / (BL) and the cloth motor is controlled to feed at the speed, wherein: V is the moving speed of the cloth trolley; B is the cloth volume per rotation of the cloth motor, the cloth speed is obtained according to N=AV / (BL) and pre-stored in the corresponding picture, wherein: L is the cloth stroke of the cloth trolley; A is the cloth volume under the corresponding image; V is the moving speed of the cloth trolley; B is the cloth volume per rotation of the cloth motor, the image acquisition device is a CCD camera, and the distance measuring device is a laser distance measuring device.

2. The concrete PC component placing equipment according to claim 1 is characterized in that: The programmable computer controls the speed of the cloth-making motor through the frequency converter. The digital signal from the programmable computer is converted into an analog signal through a D / A converter. The output end of the D / A converter is connected to the frequency control end of the frequency converter to control the output frequency of the frequency converter and thus control the speed of the cloth-making motor.

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