Quantitative material distribution device for PC production line

Abstract

The utility model relates to the technical field of concrete distributing devices, in particular to a quantitative distributing device for a PC production line. Comprising a walking mechanism, a control table arranged on one side of the walking mechanism, a hopper arranged above the walking mechanism, a material distribution mechanism arranged at the bottom of the hopper, a height adjusting mechanism arranged on one side of the hopper and a cleaning mechanism arranged on one side of the material distribution mechanism. The material distributing mechanism comprises a stirring spiral roller arranged in the hopper, a stirring motor arranged at one end of the stirring spiral roller, a material distributing wheel arranged below the stirring spiral roller, a material distributing motor, a material falling insertion plate set arranged below the material distributing wheel and a material falling air cylinder set arranged on one side of the material falling insertion plate set. The quantitative material distribution device for the PC production line has the advantages of being high in working efficiency, even in material distribution, wide in application range, high in automation degree, good in material distribution quality, long in service life and the like.

Description

Technical Field

[0001] This utility model relates to the technical field of concrete placing devices, and in particular to a quantitative placing device for PC production lines. Background Technology

[0002] PC production lines are assembly lines used in component factories to carry out PC component formwork, reinforcement placement, pouring, vibration, pre-curing, and maintenance operations. Currently, because concrete placing machines do not have precise placement capabilities, component factories generally use manual buttons to control placement, which affects production efficiency. In-depth research on placement devices and control systems to achieve automatic and precise placement of PC components is a problem that prefabricated building industry engineers must solve.

[0003] Chinese patent CN213732555U discloses a quantitative concrete placing machine for uniform concrete distribution, including a placing machine frame, a mixing device, a feeding device, and a discharging device. The mixing device is installed on the placing machine frame and has a mixing discharge hole. The feeding device is slidably installed on the placing machine frame and has an integral metering hole. The discharging device slides along the bottom of the feeding device to seal the bottom of the metering hole. The feeding device has an integral mixing discharge sealing plate, which slides below the mixing discharge hole to ensure that the concrete raw materials are uniform and do not separate.

[0004] However, the vertical position of the hopper in this technical solution is not adjustable, it is only applicable to a single type of mold, and its application range is small. Furthermore, the metering hole may become clogged after long-term use due to the viscosity of concrete or the large size of the particles, resulting in uneven material distribution and low metering accuracy. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a quantitative material distribution device for PC production lines. The device adjusts the vertical position of the hopper through a height adjustment mechanism, enabling it to handle various working scenarios. Combined with a mixing spiral roller, it can evenly push the concrete slurry in the hopper to the material distribution wheel, which then evenly distributes the slurry into the mold, effectively avoiding the problem of uneven material distribution.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A quantitative material distribution device for a PC production line includes: a traveling mechanism, a control console disposed on one side of the traveling mechanism, a hopper disposed above the traveling mechanism, and a material distribution mechanism disposed at the bottom of the hopper. It also includes: a height adjustment mechanism disposed on one side of the hopper and a cleaning mechanism disposed on one side of the material distribution mechanism. The material distribution mechanism includes: a stirring spiral roller disposed inside the hopper, a stirring motor disposed at one end of the stirring spiral roller, a material distribution wheel disposed below the stirring spiral roller, a material distribution motor disposed at one end of the material distribution wheel, a material dropping plate assembly disposed below the material distribution wheel, and a material dropping cylinder assembly disposed on one side of the material dropping plate assembly.

[0008] Preferably, the traveling mechanism includes: a lateral traveling component for controlling the hopper to move laterally, and a longitudinal traveling component disposed above the lateral traveling component for controlling the hopper to move longitudinally.

[0009] Preferably, the lateral travel assembly includes: a plurality of vertically arranged columns, a plurality of crossbeams arranged between the columns, two first guide rails arranged on the crossbeams, a first servo motor arranged on one side of the first guide rail, a first gear arranged at the output end of the first servo motor, a first rack arranged on the adjacent side of the first guide rail and meshing with the first gear, a receiving rod slidably connected above the first guide rail, and a second guide rail arranged on the receiving rod.

[0010] Preferably, the receiving rod is provided with the longitudinal traveling component.

[0011] Preferably, the longitudinal travel assembly includes: a movable seat slidably connected to the second guide rail, a second servo motor disposed on one side of the second guide rail, a second gear disposed at the output end of the second servo motor, and a second rack disposed on the adjacent side of the second guide rail and meshing with the second gear.

[0012] Preferably, the movable seat is fixedly connected to the hopper and the height adjustment mechanism respectively.

[0013] Preferably, the height adjustment mechanism includes: a support frame for mounting the hopper and disposed above the movable seat, a height adjustment motor disposed on the upper surface of the movable seat, a drive shaft disposed at both ends of the height adjustment motor, a gearbox disposed at the end of the drive shaft, and a lifting assembly disposed on one side of the gearbox.

[0014] Preferably, the lifting assembly includes: a trapezoidal screw disposed at the output end of the gearbox and a trapezoidal nut disposed on the support frame and adapted to the trapezoidal screw.

[0015] Preferably, the fabric roller is a star-shaped roller.

[0016] Preferably, the cleaning mechanism includes: a water spray pipe for rinsing the hopper and a vibrator disposed on the outside of the hopper.

[0017] The beneficial effects of this utility model are as follows:

[0018] (1) This utility model can achieve precise adjustment of the amount of material to be laid through the precise control of the material drop plate group and the material drop cylinder group, and further ensure the uniformity of the material. The stirring motor and the material laying motor control the operation of the spiral roller and the material laying wheel respectively, and can independently adjust the stirring and material laying speed according to the actual production needs to achieve automated operation. The design of the height adjustment mechanism and the material drop plate group makes it adaptable to molds of different heights and shapes, and has good versatility.

[0019] (2) By controlling the running direction and position of the transverse walking component and the longitudinal walking component, and coordinating with the opening and closing timing control of the hopper feeding port, this utility model can achieve uniform feeding, realize flexible movement of the equipment, improve the applicability and work efficiency of the equipment, and the walking mechanism can move on the PC production line according to the instructions of the control console to realize automatic feeding, reduce manual intervention, and improve production efficiency.

[0020] (3) This utility model controls the lifting process of the hopper by using a trapezoidal screw and a trapezoidal nut. The whole process is simple to operate, convenient to use, and highly efficient. The trapezoidal thread also has high transmission accuracy, which can achieve precise height adjustment. It also has a certain self-locking performance, which can effectively prevent the support frame from sliding due to external force during the lifting process. In addition, the trapezoidal thread has a strong load-bearing capacity, which can meet the weight requirements of the hopper.

[0021] (4) This utility model installs a cleaning mechanism on one side of the hopper, specifically including: a water spray pipe for rinsing the hopper and a vibrator set on the outside of the hopper, so as to keep the hopper clean, extend the service life of the equipment, ensure the quality of the material, and the vibrator can help with material feeding during the component casting process, thereby improving work efficiency.

[0022] In summary, this utility model has the advantages of high work efficiency, uniform fabric distribution, wide applicability, high degree of automation, good fabric quality, and long service life. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 for Figure 1 Enlarged view of point A;

[0025] Figure 3 for Figure 1 Enlarged view of point B;

[0026] Figure 4 This is a top view of the present invention;

[0027] Figure 5 This is a side view of the present invention;

[0028] Figure 6 for Figure 5 Enlarged view of point C;

[0029] Figure 7 This is a schematic diagram of the overall structure of the hopper of this utility model;

[0030] Figure 8 This is a schematic diagram of the internal structure of the hopper of this utility model;

[0031] Figure 9 This is a structural block diagram of the fabric control system of this utility model. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0034] Example

[0035] like Figures 1-9As shown, this embodiment provides a quantitative material distribution device for a PC production line, suitable for the production of various PC components, such as precast wall panels and floor slabs, and capable of meeting different production needs. It includes: a traveling mechanism 1, a control console 2 located on one side of the traveling mechanism 1, a hopper 3 located above the traveling mechanism 1 for storing concrete slurry, and a material distribution mechanism 4 located at the bottom of the hopper 3. It also includes: a height adjustment mechanism 5 located on one side of the hopper 3 and a cleaning mechanism 6 located on one side of the material distribution mechanism 4. The material distribution mechanism 4 includes: a stirring spiral roller 41 located inside the hopper 3, a stirring motor 42 located at one end of the stirring spiral roller 41, a material distribution wheel 43 located below the stirring spiral roller 41, a material distribution motor 44 located at one end of the material distribution wheel 43, and a material distribution device located below the material distribution wheel 43. The material feeding mechanism 4 includes a square material feeding plate assembly 45 and a material feeding cylinder assembly 46 located on one side of the material feeding plate assembly 45. A flowing mold table 7 is installed below the material feeding mechanism 4. The mixing spiral roller 41 can evenly push the concrete slurry in the hopper 3 to the material feeding wheel 43, which then evenly distributes the slurry into the mold, effectively avoiding uneven material distribution and minimizing material distribution error. Through precise control of the material feeding plate assembly 45 and the material feeding cylinder assembly 46, the material distribution amount can be accurately adjusted, further ensuring the uniformity of material distribution. The mixing motor 42 and the material feeding motor 44 control the operation of the spiral roller and the material feeding wheel 43 respectively, and the mixing and material feeding speeds can be independently adjusted according to actual production needs, achieving automated operation. The design of the height adjustment mechanism 5 and the material feeding plate assembly 45 allows them to adapt to molds of different heights and shapes, exhibiting excellent versatility.

[0036] The walking mechanism 1 includes a transverse walking component 11 for controlling the hopper 3 to move laterally and a longitudinal walking component 12 disposed above the transverse walking component 11 for controlling the hopper 3 to move longitudinally. By controlling the running direction and position of the transverse walking component 11 and the longitudinal walking component 12, and coordinating with the opening and closing timing of the material feeding port of the hopper 3, uniform material feeding can be achieved, enabling flexible movement of the equipment, improving the applicability and working efficiency of the equipment. Furthermore, the walking mechanism 1 can move on the PC production line according to the instructions of the control console 2, realizing automatic material feeding, reducing manual intervention, and improving production efficiency.

[0037] Meanwhile, the lateral travel assembly 11 includes: a plurality of vertically arranged columns 111, a plurality of crossbeams 112 arranged between the columns 111, two first guide rails 113 arranged on the crossbeams 112, a first servo motor 114 arranged on one side of the first guide rail 113, a first gear 115 arranged at the output end of the first servo motor 114, a first rack 116 arranged on the adjacent side of the first guide rail 113 and meshing with the first gear 115, a receiving rod 117 slidably connected above the first guide rail 113, and a second guide rail 118 arranged on the receiving rod 117, wherein the longitudinal travel assembly 12 is provided on the receiving rod 117.

[0038] In this embodiment, the longitudinal walking component 12 includes: a movable seat 121 slidably connected to the second guide rail 118, a second servo motor 122 disposed on one side of the second guide rail 118, a second gear 123 disposed at the output end of the second servo motor 122, and a second rack 124 disposed on the adjacent side of the second guide rail 118 and meshing with the second gear 123. Its overall structure is simple and easy to assemble and disassemble.

[0039] In this embodiment, the movable seat 121 is fixedly connected to the hopper 3 and the height adjustment mechanism 5, which improves the adaptability of the equipment and enables it to cope with various working scenarios.

[0040] In this embodiment, the height adjustment mechanism 5 includes: a support frame 51 for mounting the hopper 3 and disposed above the movable seat 121; a height adjustment motor 53 disposed on the upper surface of the movable seat 121; a transmission shaft 54 ​​disposed at both ends of the height adjustment motor 53; a gearbox 55 disposed at the end of the transmission shaft 54; and a lifting assembly 56 disposed on one side of the gearbox 55. After the height adjustment motor 53 is started, it transmits power to the gearbox 55 through the transmission shaft 54. The output shaft of the gearbox 55 is a trapezoidal screw 561. A trapezoidal nut 562 is welded and fixed on the hopper 3 frame. When the screw rotates, the trapezoidal nut 562 can drive the hopper 3 frame to lift as a whole.

[0041] In this embodiment, the lifting assembly 56 includes: a trapezoidal screw 561 disposed at the output end of the gearbox 55 and a trapezoidal nut 562 disposed on the support frame 51 and adapted to the trapezoidal screw 561. Because the trapezoidal thread has high transmission accuracy, it can achieve precise height adjustment and also has a certain self-locking performance, which can effectively prevent the support frame 51 from sliding due to external force during the lifting process. In addition, the trapezoidal thread has strong load-bearing capacity, which can meet the weight requirements of the hopper 3.

[0042] In this embodiment, the material distribution wheel 43 is a star-shaped wheel, with an 8mm-10mm gap between it and the inclined section of the hopper 3 wall. During the rotation of the star-shaped wheel, a relatively closed space with a volume of L is formed with the inclined section of the hopper 3. Each rotation of the star-shaped wheel forces 4L of concrete slurry into the material drop area. The star-shaped wheel is driven by a stepper motor. By controlling the number of rotations of the star-shaped wheel, quantitative material distribution can be achieved.

[0043] In this embodiment, to ensure structural strength, the hopper 3 is made of steel plates with a thickness of more than 8mm welded into a box-shaped structure. A high-strength wear-resistant liner is fixed to the inner side of the lower end of the hopper 3 with bolts to prevent the wall of the hopper 3 from thinning due to long-term friction during slurry mixing and material distribution. A T-shaped material drop chute is set at the bottom of the hopper 3, and material distribution is achieved by controlling the opening and closing of the insert plate group through a cylinder.

[0044] In this embodiment, the slurry in the hopper 3 is generally distributed in a quasi-normal pattern with a high center and low ends. It needs to be conveyed to both ends by the stirring spiral roller 41 to achieve uniform distribution of the slurry along the length of the hopper 3. At the same time, stirring prevents the concrete from segregating or solidifying, improves the fluidity of the concrete, and facilitates the slurry to fall into the distribution area. That is, the slurry that is uniformly distributed by the stirring spiral roller 41 falls down into the distribution area below through the gap between the stirring spiral roller 41 and the wall of the hopper 3. After the slurry enters the dropping area, by controlling the opening and closing time, position and number of the dropping cylinder group 46, and coordinating with the relative movement of the distribution device and the mold table 7, the concrete can be accurately placed into the mold.

[0045] In this embodiment, in order to move the slurry accumulated in the middle of the hopper 3 to both ends, the stirring spiral roller 41 needs to be designed into two sections along the middle of the length of the hopper 3, with the left section spiraling to the right and the right section spiraling to the left. The stirring motor 42 drives the stirring spiral roller 41 to rotate, and the stirring spiral roller 41 pushes the slurry to both ends.

[0046] In this embodiment, the cleaning mechanism 6 includes a water spray pipe 61 for rinsing the hopper 3 and a vibrator 62 disposed on the outside of the hopper 3, so as to keep the hopper 3 clean, extend the service life of the equipment, and ensure the quality of the fabric.

[0047] In this embodiment, after each work shift, the inner wall of the hopper 3 must be rinsed immediately. The high-pressure water flow and vibration can remove most of the adhering concrete. If the concrete slump is too small and the material does not fall smoothly during the component pouring process, the vibrator 62 must also be turned on to help with the material discharge.

[0048] In this embodiment, the control console 2 contains a fabric control system. Specifically, the control system host has a drawing recognition function. The user directly inputs CAD drawings into the control system, and the system assembles the recognized component shape, volume, notch position, and other information into machine language through an encoder to control the opening and closing time of the fabric device, thereby achieving effective control of the fabric quantity and position.

[0049] Of course, since CAD drawing input and recognition technology solves the problem of obtaining component information and establishes a data model that the system can recognize for a specific component, the concrete slurry must be placed in the mold cavity to form, so a mold installation origin position that the system can recognize needs to be established.

[0050] In addition, when the PC production line mold table 7 reaches the stop point of the material placement and vibration station, the photoelectric sensor sends a signal, the PLC controller cuts off the power to the drive motor, and stops the mold table 7 at the designated position of the material placement station. A mold placement origin point is also set on the mold table 7, which is generally located to the left front of the operator's position. No matter what component is being produced, the mold placement must start from the mold placement origin point. This point is also the starting point and reset point of the material placement operation of the material placement device.

[0051] The working process of this embodiment is as follows: When the material placement operation begins, under the control of the PLC system, the material placement device controls the position of the material placement device relative to the material placement origin by calculating the rotation of the first servo motor 114 and the second servo motor 122 according to the identified component information model. The height of the material placement port is adjusted by controlling the rotation of the height adjustment motor to adapt to different component heights. The material placement amount is controlled by calculating the rotation of the material placement motor 44 and the material placement wheel 43. During the process, the stirring motor 42 rotates at low speed to improve the state of the concrete slurry and continuously deliver the slurry to both ends of the hopper 3, ensuring that the star wheel metering area is always filled with slurry. The opening and closing time of the material dropping cylinder and the material dropping plate are controlled by the solenoid valve group, that is, the working state of the material dropping cylinder group 46 and the material dropping plate group 45 is controlled, so as to realize the precise placement of concrete slurry in the mold cavity. After the placement of a single component is completed, the material placement device returns to the material placement origin, realizing one material placement operation cycle. The material placement control system has a reset function. After reset, the material placement device automatically returns to the material placement origin position.

[0052] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A dosing device for a PC production line, comprising: The walking mechanism, the console arranged on one side of the walking mechanism, the hopper arranged above the walking mechanism, the distributing mechanism arranged at the bottom of the hopper, characterized in that further comprising: the height adjusting mechanism arranged on one side of the hopper and the cleaning mechanism arranged on one side of the distributing mechanism, the distributing mechanism comprising: the stirring spiral roller arranged inside the hopper, the stirring motor arranged at one end of the stirring spiral roller, the distributing wheel arranged below the stirring spiral roller, the distributing motor arranged at one end of the distributing wheel, the blanking plug plate group arranged below the distributing wheel and the blanking cylinder group arranged on one side of the blanking plug plate group.

2. The apparatus according to claim 1, wherein The walking mechanism comprises: a transverse walking assembly for controlling the hopper to move transversely and a longitudinal walking assembly arranged above the transverse walking assembly for controlling the hopper to move longitudinally.

3. The apparatus according to claim 2, wherein The transverse walking assembly comprises: a plurality of vertical columns arranged vertically, a plurality of cross beams arranged between the columns, two first guide rails arranged on the cross beams, a first servo motor arranged on one side of the first guide rails, a first gear arranged at the output end of the first servo motor, a first rack arranged on the adjacent side of the first guide rail and engaged with the first gear, a bearing rod slidingly connected above the first guide rail, and a second guide rail arranged on the bearing rod.

4. The apparatus according to claim 3, wherein The bearing rod is provided with the longitudinal walking assembly.

5. The apparatus according to claim 4, wherein The longitudinal walking assembly comprises: a moving seat slidingly connected to the second guide rail, a second servo motor arranged on one side of the second guide rail, a second gear arranged at the output end of the second servo motor, and a second rack arranged on the adjacent side of the second guide rail and engaged with the second gear.

6. The apparatus according to claim 5, wherein The moving seat is fixedly connected with the hopper and the height adjusting mechanism respectively.

7. The apparatus according to claim 6, wherein The height adjusting mechanism comprises: a support frame for mounting the hopper and arranged above the moving seat, a height adjusting motor arranged on the upper surface of the moving seat, a transmission shaft arranged at both ends of the height adjusting motor, a gearbox arranged at the end of the transmission shaft, and a lifting assembly arranged on one side of the gearbox.

8. The apparatus according to claim 7, wherein The lifting assembly comprises: a trapezoidal screw arranged at the output end of the gearbox and a trapezoidal nut arranged on the support frame and matched with the trapezoidal screw.

9. The apparatus according to claim 8, wherein The model of the distributing wheel is a star wheel.

10. The apparatus according to claim 1, wherein The cleaning mechanism comprises: a water spray pipe for flushing the hopper and a vibrator arranged outside the hopper.

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