Short polypropylene fiber weighing and dispersing device

Abstract

The utility model discloses a short polypropylene fiber weighing and dispersing device which comprises a frame body, a storage hopper is arranged at the upper end of the frame body, a discharging pipe is arranged at a discharging port of the storage hopper, partition plates distributed at equal intervals are longitudinally connected into the discharging pipe in a sliding mode, baffles are transversely connected to the lower end of the discharging pipe in a sliding mode, the two baffles are symmetrical left and right, a weighing plate is installed at the lower end of the frame body, and the weighing plate corresponds to the vertical position of the discharging pipe. According to the short polypropylene fiber weighing and dispersing device, dispersed short polypropylene fibers are guided to be discharged from a plurality of flow channels at a constant speed, the discharging speed of the short polypropylene fibers is conveniently controlled by controlling the number of the short polypropylene fiber discharging flow channels, and the short polypropylene fiber weighing and dispersing device is convenient to use and high in practicability. The influence of the discharging speed of the short polypropylene fibers on the weighing result is reduced, so that the weighing of the short polypropylene fibers is more accurate.

Description

Technical Field

[0001] The utility model relates to the technical field of short polypropylene fiber weighing, in particular to a short polypropylene fiber weighing and dispersing device. Background Art

[0002] Short polypropylene fiber is a synthetic fiber spun from isotactic polypropylene obtained by polymerization of propylene. This fiber has extremely stable chemical properties, is resistant to strong acids and alkalis, and has weak thermal conductivity. When added to mortar or concrete, it can effectively control the microcracks caused by temperature changes and other factors in the initial plastic shrinkage stage of mortar and concrete, prevent and inhibit the formation and development of cracks, and greatly improve the crack resistance, impermeability, impact resistance and seismic resistance of concrete. When using short polypropylene fiber, it is necessary to use a weighing device to weigh it to ensure the accuracy of the amount of short polypropylene fiber used; in the prior art, because short polypropylene fiber is easy to hold Therefore, when weighing short polypropylene fibers, it is necessary to first use a dispersing device to break up the short polypropylene fibers to achieve uniform feeding of the short polypropylene fibers. When the weighing weight is about to reach the specified value, the discharging of the short polypropylene fibers is stopped according to the discharging speed of the short polypropylene fibers to achieve automatic weighing of the short polypropylene fibers. However, in the weighing process, some short polypropylene fiber dispersing devices will adopt a large-diameter single-channel discharging. Although the smooth discharging of the short polypropylene fibers is guaranteed, it is not convenient to control the discharging speed, and it is easy for the short polypropylene fibers to be discharged too fast, affecting the accuracy of the short polypropylene fiber weighing. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the existing defects and provide a short polypropylene fiber weighing and dispersing device, which guides the dispersed short polypropylene fibers to be discharged from multiple flow channels at a uniform speed. By controlling the number of the short polypropylene fiber discharge flow channels, the discharge speed of the short polypropylene fibers can be conveniently controlled, so that the weighing of the short polypropylene fibers is more accurate, and the problems in the background technology can be effectively solved.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a short polypropylene fiber weighing and dispersing device, comprising a frame;

[0005] Frame: A storage hopper is provided at the upper end thereof, a discharge pipe is provided at the discharge port of the storage hopper, the interior of the discharge pipe is longitudinally slidably connected with partition plates distributed at equal intervals, the lower end of the discharge pipe is transversely slidably connected with baffles, the two baffles are symmetrical, a weighing plate is installed at the lower end of the frame, the weighing plate corresponds to the vertical position of the discharge pipe, the upper end of the storage hopper is rotatably connected with a dispersion roller through a rotating shaft, guides the dispersed short polypropylene fibers to be discharged from multiple flow channels at a uniform speed, and by controlling the number of short polypropylene fiber discharge flow channels, it is convenient to control the discharge speed of the short polypropylene fibers, reduce the influence of the discharge speed of the short polypropylene fibers on the weighing result, and make the weighing of the short polypropylene fibers more accurate.

[0006] Furthermore, a PLC controller is provided at the right end of the frame, and an input end of the PLC controller is electrically connected to an external power supply to control the start and stop of the entire device.

[0007] Furthermore, a collecting box is provided at the lower end of the frame, and a weighing plate is vertically slidably connected to the inside of the collecting box. Weight sensors are provided at the four corners of the bottom wall of the collecting box. The detection ends of the weight sensors are fixedly connected to the weighing plate. The output end of the weight sensor is electrically connected to the input end of the PLC controller to weigh the short polypropylene fibers.

[0008] Furthermore, connecting plates are respectively provided between the end heads of the partition plates, sliding columns are respectively provided between the two connecting plates, the sliding columns are slidably connected to the guide support plates on the left and right sides of the discharge pipe, springs are provided between the guide support plates and the connecting plates, the springs are respectively movably mounted on the outer arc surfaces of the sliding columns to provide guiding support for the forward and backward reciprocating movement of the partition plates.

[0009] Furthermore, it also includes a vibration motor, which is arranged on the surface of the front connecting plate, and the input end of the vibration motor is electrically connected to the output end of the PLC controller to provide power for the reciprocating movement of the partition plate.

[0010] Furthermore, electric push rods are provided on the left and right sides of the discharge pipe, and the electric push rods are fixedly connected to adjacent baffles respectively. The input end of the electric push rod is electrically connected to the output end of the PLC controller to provide power for the movement of the baffle.

[0011] Furthermore, the ends of the rotating shafts of the dispersion rollers are provided with worm wheels, the upper end of the frame is rotatably connected to a worm, the worm wheels are meshingly connected to the worm, the upper end of the frame is provided with a drive motor, the rear ends of the output shaft of the drive motor and the rear end of the worm are provided with gears, the two gears are meshingly connected, and the input end of the drive motor is electrically connected to the output end of the PLC controller to provide power for the rotation of the dispersion roller.

[0012] Compared with the prior art, the utility model has the following advantages:

[0013] The dispersed short polypropylene fibers fall downward under the separation of the partition plate. The vibration motor is started through the PLC controller to make the partition plate move back and forth to vibrate the short polypropylene fibers, so that the discharge of the short polypropylene fibers is smoother and the uniform falling of the short polypropylene fibers is ensured. As the weighing result gradually approaches the set value, the electric push rod is started to adjust the distance between the two baffles to control the number of short polypropylene fiber discharge channels and thus the discharge speed. When the weighing weight reaches the set value, the discharge channels are completely closed to guide the dispersed short polypropylene fibers to be discharged at a uniform speed from multiple channels. By controlling the number of short polypropylene fiber discharge channels, the discharge speed of the short polypropylene fibers can be conveniently controlled, reducing the influence of the discharge speed of the short polypropylene fibers on the weighing result and making the weighing of the short polypropylene fibers more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a structural schematic diagram of the front view cross section of the overall device of the utility model;

[0016] Figure 3 It is a structural schematic diagram of the discharge pipe of the utility model.

[0017] In the figure: 1 frame, 2 storage hopper, 3 discharge pipe, 4 partition plate, 5 baffle, 6 weighing plate, 7 dispersion roller, 8 collection box, 9 weight sensor, 10 PLC controller, 11 connecting plate, 12 slide column, 13 spring, 14 vibration motor, 15 electric push rod, 16 worm gear, 17 worm, 18 gear, 19 driving motor. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-3 , This embodiment provides a technical solution: a short polypropylene fiber weighing and dispersing device, including a frame 1;

[0020] The frame 1: a storage hopper 2 is provided at the upper end thereof for storing short polypropylene fibers. A discharge pipe 3 is provided at the discharge port of the storage hopper 2 for facilitating the discharge of the short polypropylene fibers from the storage hopper 2. The interior of the discharge pipe 3 is longitudinally and slidably connected with partition plates 4 distributed at equal intervals. The partition plates 4 are used to separate the short polypropylene fibers, which facilitates the control of the discharge speed of the short polypropylene fibers. The partition plates 4 are moved back and forth to vibrate the short polypropylene fibers to ensure that the short polypropylene fibers fall at a uniform speed. The lower end of the discharge pipe 3 is laterally and slidably connected with baffle plates 5. The two baffle plates 5 are symmetrical on the left and right. The baffle plates 5 are used to block the short polypropylene fibers. The discharge speed of the short polypropylene fibers is controlled by controlling the distance between the two short polypropylene fibers. A weighing plate 6 is installed at the lower end to weigh the short polypropylene fibers. The weighing plate 6 corresponds to the vertical position of the discharge pipe 3. The upper end of the storage hopper 2 is connected to a dispersion roller 7 through a rotating shaft to disperse the short polypropylene fibers and make the discharge of the short polypropylene fibers smoother. A PLC controller 10 is provided at the right end of the frame 1 to control the start and stop of the entire device. The input end of the PLC controller 10 is electrically connected to an external power supply. A collecting box 8 is provided at the lower end of the frame 1. The weighing plate 6 is vertically slidably connected to the inside of the collecting box 8. Weight sensors 9 are provided at the four corners of the bottom wall of the collecting box 8. The detection ends of the weight sensors 9 are fixedly connected to the weighing plate 6. The output ends of the weight sensors 9 are electrically connected to the input end of the PLC controller 10. The short polypropylene fibers are discharged when they leave the discharge pipe. The tube 3 falls onto the surface of the weighing plate 6, and the weight sensor 9 is used to weigh the weight of the short polypropylene fibers on the surface of the weighing plate 6. A connecting plate 11 is provided between the ends of the partition plate 4, and a sliding column 12 is provided between the two connecting plates 11. The sliding column 12 is slidably connected to the guide support plates on the left and right sides of the discharge tube 3. A spring 13 is provided between the guide support plate and the connecting plate 11. The spring 13 is movably sleeved on the outer arc surface of the sliding column 12, and the longitudinal sliding of the sliding column 12 and the guide support plate provides a guide support for the movement of the partition plate 4. Under the elastic force of the spring 13, the back and forth reciprocating movement of the partition plate 4 is more stable. A vibration motor 14 is also included. The vibration motor 14 is arranged on the surface of the connecting plate 11 on the front side, and the input end of the vibration motor 14 is electrically connected to At the output end of the PLC controller 10, power is provided for the reciprocating movement of the partition plate 4. Electric push rods 15 are provided on the left and right sides of the discharge pipe 3. The electric push rods 15 are respectively fixedly connected to the adjacent baffles 5. The input end of the electric push rod 15 is electrically connected to the output end of the PLC controller 10 to provide power for the movement of the baffle 5. The end of the rotating shaft of the dispersion roller 7 is provided with a worm gear 16. The upper end of the frame 1 is rotatably connected with a worm 17. The worm gear 16 is meshed with the worm 17. A drive motor 19 is provided at the upper end of the frame 1. A gear 18 is provided at the rear end of the output shaft of the drive motor 19 and the rear end of the worm 17. The two gears 18 are meshed. The input end of the drive motor 19 is electrically connected to the output end of the PLC controller 10. The drive motor 19 is started.The output shaft of the driving motor 19 drives the lower gear 18 to rotate, and through the meshing connection of the two gears 18, the upper gear 18 drives the worm 17 to rotate, and through the meshing connection between the worm 17 and the worm wheel 16, the worm wheel 16 drives the dispersion roller 7 to rotate.

[0021] The working principle of the short polypropylene fiber weighing and dispersing device provided by the utility model is as follows: when in use, the short polypropylene fibers are poured into the storage hopper 2, and the driving motor 19 is started through the PLC controller 10. The output shaft of the driving motor 19 drives the gear 18 on the lower side to rotate. Through the meshing connection of the two gears 18, the gear 18 on the upper side drives the worm 17 to rotate. Through the meshing connection of the worm 17 and the worm wheel 16, the worm wheel 16 drives the dispersion roller 7 to rotate. All the dispersion rollers 7 rotate synchronously to disperse the short polypropylene fibers. Under the action of gravity, the dispersed short polypropylene fibers are discharged from the discharge pipe 3. During the discharge process, under the separation of the partition plate 4, the short polypropylene fibers fall downward from multiple flow channels. At the same time, the vibration motor 14 is started to overcome the elastic force of the spring 13, so that the partition plate 4 The short polypropylene fibers are vibrated by reciprocating forward and backward movements, so that the discharge of the short polypropylene fibers is smoother and the uniform falling of the short polypropylene fibers is ensured. After leaving the discharge pipe 3, the short polypropylene fibers fall to the surface of the weighing plate 6. The weight of the short polypropylene fibers on the surface of the weighing plate 6 is weighed by the weight sensor 9. As the weighed weight gradually approaches the set value, the electric push rod 15 is started, and the telescopic end of the electric push rod 15 drives the two baffles 5 to move relative to each other. The baffles 5 are used to block the falling of the short polypropylene fibers, and the number of the short polypropylene fiber discharge flow channels is controlled to gradually reduce the discharge speed of the short polypropylene fibers. When the weighed weight reaches the set value, the two baffles 5 contact each other to close the lower end of the discharge pipe 3, block the discharge of the short polypropylene fibers, and make the weighing of the short polypropylene fibers more accurate.

[0022] It is worth noting that the PLC controller 10 disclosed in the above embodiment can use the NX7 model PLC controller, and the weight sensor 9, vibration motor 14, electric push rod 15 and drive motor 19 can be freely configured according to the actual application scenario. The weight sensor 9 can use the SLC610 model weighing sensor, the vibration motor 14 can use the 1027 model vibration motor, the electric push rod 15 can use the LAM1 model electric push rod, and the drive motor 19 can use the 42BYHJ01 model stepping reduction motor. The PLC controller 10 controls the weight sensor 9, the vibration motor 14, the electric push rod 15 and the drive motor 19 using methods commonly used in the prior art.

[0023] The above are only embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A short polypropylene fiber weighing and dispersing device, characterized in that: It comprises a frame (1); The frame (1) is provided with a storage hopper (2) at its upper end, a discharge pipe (3) is provided at the discharge port of the storage hopper (2), the interior of the discharge pipe (3) is longitudinally slidably connected with partition plates (4) distributed at equal intervals, the lower end of the discharge pipe (3) is transversely slidably connected with baffles (5), the two baffles (5) are symmetrical, a weighing plate (6) is installed at the lower end of the frame (1), the weighing plate (6) corresponds to the vertical position of the discharge pipe (3), and the upper end of the storage hopper (2) is rotatably connected with a dispersion roller (7) via a rotating shaft.

2. A short polypropylene fiber weighing and dispersing device according to claim 1, characterized in that: A PLC controller (10) is provided at the right end of the frame (1), and an input end of the PLC controller (10) is electrically connected to an external power supply.

3. A short polypropylene fiber weighing and dispersing device according to claim 2, characterized in that: A collecting box (8) is provided at the lower end of the frame (1), a weighing plate (6) is vertically slidably connected inside the collecting box (8), weight sensors (9) are provided at the four corners of the bottom wall of the collecting box (8), the detection ends of the weight sensors (9) are fixedly connected to the weighing plate (6), and the output end of the weight sensor (9) is electrically connected to the input end of the PLC controller (10).

4. A short polypropylene fiber weighing and dispersing device according to claim 2, characterized in that: A connecting plate (11) is provided between the ends of the partition plate (4), a sliding column (12) is provided between the two connecting plates (11), the sliding column (12) is slidably connected to the guide support plates on the left and right sides of the discharge pipe (3), a spring (13) is provided between the guide support plate and the connecting plate (11), and the spring (13) is movably sleeved on the outer arc surface of the sliding column (12).

5. A short polypropylene fiber weighing and dispersing device according to claim 4, characterized in that: It also includes a vibration motor (14), which is arranged on the surface of the front connection plate (11), and the input end of the vibration motor (14) is electrically connected to the output end of the PLC controller (10).

6. A short polypropylene fiber weighing and dispersing device according to claim 2, characterized in that: The left and right sides of the discharge pipe (3) are both provided with electric push rods (15), the electric push rods (15) are respectively fixedly connected to the adjacent baffles (5), and the input end of the electric push rod (15) is electrically connected to the output end of the PLC controller (10).

7. A short polypropylene fiber weighing and dispersing device according to claim 2, characterized in that: The ends of the rotating shafts of the dispersion rollers (7) are provided with worm wheels (16), the upper end of the frame (1) is rotatably connected with a worm (17), the worm wheels (16) are meshingly connected with the worm (17), the upper end of the frame (1) is provided with a driving motor (19), the rear ends of the output shaft of the driving motor (19) and the rear ends of the worm (17) are provided with gears (18), the two gears (18) are meshingly connected, and the input end of the driving motor (19) is electrically connected to the output end of the PLC controller (10).

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