Vertical stirring downward extending type metering weightlessness scale

Abstract

The utility model relates to a vertical stirring downward extending type metering weightlessness scale. Comprising a base, a hopper used for storing materials, a spherical hopper arranged at the bottom end of the hopper, a weighing platform component used for weighing the materials, a supporting plate arranged on the weighing platform component, stirring blades used for stirring the materials and a screw rod used for conveying the materials. The transmission box is mounted on the supporting plate; the first driving device is used for driving the transmission box to operate; a top cover is mounted at the top end of the hopper; a feeding pipe is arranged on the top cover; the spherical hopper is fixedly installed on the supporting plate through a bent plate. The weighing platform component is arranged on the base; and the stirring blades and the screw rod are arranged on the transmission shaft of the transmission box. The weighing platform totally-closed type metering weightlessness scale solves the technical problems that in the prior art, due to the fact that a stirring structure of the weighing platform totally-closed type metering weightlessness scale is too simple, when powder with large viscosity is stirred, fluidity is poor, and meanwhile metering accuracy is affected.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of metering loss of weight scale, especially to a vertical stirring down-stretch type metering loss of weight scale. BACKGROUND

[0002] The scale table structure of the commonly used metering loss of weight scale in the market has a certain gap with the outside or a gap between the separated shell structures, which are not truly full-closed structures, in order to ensure the weighing accuracy of the weighing sensor. Because the metering loss of weight scale works in a relatively complex environment, the non-closed structure scale table will cause the weighing sensor to be in a dust environment for a long time or have a particle foreign matter stuck in the gap, which will eventually affect the service life of the metering loss of weight scale and make the fault checking more difficult, so the full-closed metering loss of weight scale of the scale table has entered the market. However, the full-closed metering loss of weight scale of the scale table in the prior art has a too simple stirring structure, which will cause poor flowability and affect the measurement accuracy when stirring the powder with high viscosity. SUMMARY

[0003] The embodiment of the present application provides a vertical stirring down-stretch type metering loss of weight scale, which solves the technical problem that the full-closed metering loss of weight scale of the scale table in the prior art has a too simple stirring structure, which will cause poor flowability and affect the measurement accuracy when stirring the powder with high viscosity.

[0004] The technical scheme adopted by the embodiment of the present application is as follows:

[0005] A vertical stirring down-stretch type metering loss of weight scale, comprising a base, a hopper for storing materials, a spherical hopper arranged at the bottom end of the hopper, a scale table component for weighing the materials, a support plate arranged on the scale table component, stirring blades for stirring the materials, a screw for conveying the materials, a transmission box mounted on the support plate, and a first driving device for driving the transmission box to operate; a top cover is mounted at the top end of the hopper; a feeding pipe is arranged on the top cover; the spherical hopper is fixedly installed on the support plate through a bending plate; the scale table component is arranged on the base; the stirring blades and the screw are arranged on the transmission shaft of the transmission box; the transmission box is mounted on the support plate; the output shaft of the first driving device is in transmission connection with the transmission shaft of the transmission box; a discharging pipe is connected to the bottom end of the spherical hopper; a discharging opening is arranged on the discharging pipe.

[0006] A second driving device is further arranged on the top cover; an obliquely-stretched vertical stirring rod is arranged on the output shaft of the second driving device and located in the inner cavity of the hopper.

[0007] Further technical solutions are: the scale platform component includes an accordion cover, a load cell, a sensor gasket and a protection block; the accordion cover is installed on the base; the support plate is arranged on the top of the accordion cover; the load cell is installed in the inner cavity of the accordion cover, and the bottom end of the load cell is connected with the sensor gasket; the sensor gasket is arranged on the base; the connection part of the accordion cover and the base is provided with four groups of protection blocks arranged in a rectangular array.

[0008] Further technical solutions are: the base is provided with four groups of rubber pads arranged in a rectangular array.

[0009] Further technical solutions are: the first driving device and the second driving device are both motors.

[0010] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

[0011] 1、Due to the adoption of base, hopper, spherical hopper, weighing platform components, support plate, stirring blade, screw, transmission box, first driving device, second driving device and the setting of oblique stretching type vertical stirring rod, through the setting of oblique stretching type vertical stirring rod and horizontal stirring blade double stirring mechanism, it ensures that the material is evenly distributed in the hopper, avoids the material bridging phenomenon caused by the traditional single stirring mode. Especially when dealing with poor flowability and large viscosity powder, the oblique stretching type vertical stirring rod increases the stirring sweeping area by 30%, and cooperates with the horizontal stirring blade, basically eliminates the stirring dead angle, thereby significantly improves the smoothness of the material and the accuracy of the metering. The weighing sensor is effectively protected by the organ type cover, prevents the contact of particles and foreign matters with the sensor, reduces the wear and failure rate of the sensor, greatly prolongs the service life of the metering loss weight scale. In addition, the free expansion of the organ type cover effectively isolates the influence of the upper and lower bolt connection on the weighing sensor, further improves the stability and reliability of the sensor. During transportation, the use of the protection block effectively prevents the pressure or tension exceeding the range of the weighing sensor from directly acting on the sensor, maximally protects the weighing sensor, ensures the safety of the equipment during transportation and installation. The rubber pad arranged at the bottom of the base plays a good damping and buffering role during transportation, protects the entire equipment from impact and vibration, enhances the stability and durability of the equipment. The hopper and the spherical hopper adopt an integrated structure, the stirring blade is located in the inner cavity of the spherical hopper, and the screw is located in the inner cavity of the discharge pipe, so that the material is always in a closed state during the whole conveying and metering process, avoids the pollution and leakage of the material, and improves the hygiene and safety of the metering process. The first driving device and the second driving device are both driven by a motor, and the first driving device is accurately controlled by a control unit to supply material according to the set flow, so that the continuous and stable conveying of the material is ensured. The second driving device continuously drives the oblique stretching type vertical stirring rod to rotate during the metering and weighing process, further ensures the uniformity and smoothness of the material, and improves the overall metering accuracy of the system. The utility model is not only suitable for materials with good flowability and small viscosity, but also significantly improves the processing capacity of materials with poor flowability and large viscosity through the design of the oblique stretching type vertical stirring rod, expands the application range of the equipment, and meets the metering needs of more industries. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a whole structure schematic view of the vertical stirring down-stretch type metering loss weight scale in the embodiment of the utility model.

[0013] Figure 2 It is a whole structure sectional view of the vertical stirring down-stretch type metering loss weight scale in the embodiment of the utility model.

[0014] In the figure: 1, base; 11, rubber pad; 2, hopper; 21, top cover; 211, second driving device; 212, oblique extension type vertical stirring rod; 22, feeding pipe; 3, spherical bucket; 31, bending plate; 32, discharging pipe; 33, discharging port; 4, weighing platform component; 41, organ type cover; 42, weighing sensor; 43, sensor gasket; 44, protection block; 5, support plate; 6, stirring blade; 7, screw rod; 8, transmission box; 9, first driving device. DETAILED DESCRIPTION

[0015] The embodiment of the present application provides a vertical stirring lower extension type metering loss-in-weight scale, and solves the technical problem that the full-closed type metering loss-in-weight scale of the weighing platform in the prior art has a too simple stirring structure, and when the stirring structure is used for stirring powder with high viscosity, the flowability is poor, and the metering accuracy is affected.

[0016] The technical solution in the embodiment of the present application is as follows to solve the above problems:

[0017] In order to better understand the above technical solution, the above technical solution will be described in detail in combination with the drawings of the specification and specific embodiments.

[0018] A vertical stirring lower extension type metering loss-in-weight scale, as shown in Figure 1 and Figure 2 , comprises a base 1, a hopper 2 for storing materials, a spherical bucket 3 arranged at the bottom end of the hopper 2, a weighing platform component 4 for weighing the materials, a support plate 5 arranged on the weighing platform component 4, a stirring blade 6 for stirring the materials, a screw rod 7 for conveying the materials, a transmission box 8 mounted on the support plate 5, and a first driving device 9 for driving the transmission box 8 to operate. The top end of the hopper 2 is provided with a top cover 21. The top cover 21 is provided with a feeding pipe 22. The spherical bucket 3 is fixedly installed on the support plate 5 through a bending plate 31. The weighing platform component 4 is arranged on the base 1. The stirring blade 6 and the screw rod 7 are arranged on the transmission shaft of the transmission box 8. The transmission box 8 is mounted on the support plate 5. The output shaft of the first driving device 9 is in transmission connection with the transmission shaft of the transmission box 8. The bottom end of the spherical bucket 3 is connected with a discharging pipe 32. The discharging pipe 32 is provided with a discharging port 33. The top cover 21 is further provided with a second driving device 211. The output shaft of the second driving device 211 is provided with an oblique extension type vertical stirring rod 212, and the oblique extension type vertical stirring rod 212 is located in the inner cavity of the hopper 2.

[0019] The first driving device 9 and the second driving device 211 are preferably motors. The output shaft of the first driving device 9 is drivingly connected to the transmission shaft of the transmission box 8. The bottom end of the spherical hopper 3 is fixedly connected with a discharge pipe 32. The discharge pipe 32 is fixedly connected with a discharge port 33. The control unit controls the first driving device 9 to supply material to the lower end equipment such as an extruder, a mixer, a reaction kettle and the like at a set flow rate. The first driving device 9 drives the transmission box 8 to rotate the stirring blade 6 and the screw rod 7. The material is sent out from the discharge pipe 32 and the discharge port 33 from the hopper 2. The whole process is a dynamic weighing process. The hopper 2 is fixedly connected with the spherical hopper 3 and is of an integrated structure. The stirring blade 6 is located in the inner cavity of the spherical hopper 3, and the screw rod 7 is located in the inner cavity of the discharge pipe 32. Therefore, the material can be sent out from the discharge pipe 32 and the discharge port 33 from the hopper 2 in a closed state. At the same time, the weighing sensor 42 is protected by the organ type cover 41. Therefore, the contact between the particles and the weighing sensor 42 can be prevented, and the weighing sensor 42 can be well protected. The service life of the weighing sensor is greatly prolonged. The second driving device 211 drives the obliquely extending vertical stirring rod 212 to rotate during the weighing process. The rotation of the horizontal stirring blade 6 ensures smooth material discharge and avoids the bridging phenomenon, thereby ensuring the measurement accuracy of the whole system.

[0020] The weighing platform component 4 includes the organ type cover 41, the weighing sensor 42, the sensor gasket 43 and the protection block 44. The organ type cover 41 is installed on the base 1. The support plate 5 is arranged at the top of the organ type cover 41. The weighing sensor 42 is installed in the inner cavity of the organ type cover 41, and the bottom end of the weighing sensor 42 is connected with the sensor gasket 43. The sensor gasket 43 is arranged on the base 1. Four groups of protection blocks 44 arranged in a rectangular array are arranged at the connection between the organ type cover 41 and the base 1. The organ type cover 41 has a certain free expansion in the natural state, thereby isolating the influence of the upper and lower bolt connections on the weighing sensor 42 during the measurement and batching. The protection block 44 is used to prevent the pressure or tension exceeding the range of the weighing sensor 42 from directly acting on the weighing sensor 42 during transportation. Before transportation, the base 1 and the support plate 5 are directly and hard connected and fixed by bolts, thereby protecting the weighing sensor 42 to the greatest extent. The protection block 44 is removed during measurement.

[0021] Four groups of rubber pads 11 arranged in a rectangular array are arranged at the bottom of the base 1. The arrangement of the rubber pads 11 can protect the whole equipment during transportation.

[0022] Due to the adoption of the base 1, the hopper 2, the spherical hopper 3, the weighing table component 4, the supporting plate 5, the stirring blade 6, the screw rod 7, the transmission box 8, the first driving device 9, the second driving device 211 and the oblique extension type vertical stirring rod 212, through the double stirring mechanism of the oblique extension type vertical stirring rod 212 and the horizontal stirring blade 6, the uniform distribution of the material in the hopper 2 is ensured, and the material bridging phenomenon caused by the traditional single stirring mode is avoided. Especially when processing powder with poor fluidity and large viscosity, the oblique extension type vertical stirring rod 212 increases the stirring sweeping area by 30%, and cooperates with the horizontal stirring blade 6 to basically eliminate the stirring dead angle, thereby significantly improving the smoothness of the material and the accuracy of the metering. The weighing sensor 42 is effectively protected by the organ type cover 41, preventing particles and foreign matter from contacting the sensor, reducing the wear and failure rate of the sensor, and greatly prolonging the service life of the metering loss weighing scale. In addition, the free expansion of the organ type cover 41 effectively isolates the influence of the upper and lower bolt connections on the weighing sensor 42, further improving the stability and reliability of the sensor. During transportation, the use of the protection block 44 effectively prevents pressure or tension beyond the range of the weighing sensor 42 from directly acting on the sensor, maximally protecting the weighing sensor and ensuring the safety of the equipment during transportation and installation. The rubber pad 11 arranged at the bottom of the base 1 plays a good damping and buffering role during transportation, protecting the entire equipment from impact and vibration, enhancing the stability and durability of the equipment. The hopper 2 and the spherical hopper 3 adopt an integrated structure, the stirring blade 6 is located in the inner cavity of the spherical hopper 3, and the screw rod 7 is located in the inner cavity of the discharge pipe 32, ensuring that the material is always in a closed state during the entire conveying and metering process, avoiding pollution and leakage of the material, and improving the hygiene and safety of the metering process. The first driving device 9 and the second driving device 211 are both driven by motors, and the first driving device 9 is accurately controlled by the control unit to supply material at a set flow rate, ensuring continuous and stable conveying of the material. The second driving device 211 continuously drives the oblique extension type vertical stirring rod 212 to rotate during the metering and weighing process, further ensuring the uniformity and smoothness of the material, and improving the overall metering accuracy of the system. The utility model is not only suitable for materials with good fluidity and small viscosity, but also significantly improves the processing capacity of powder with poor fluidity and large viscosity through the design of the oblique extension type vertical stirring rod 212, expands the application range of the equipment, and meets the metering needs of more industries.

[0023] Although the preferred embodiments of the present application have been described, those skilled in the art, once they know the basic creative concept, can make additional changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present application.

[0024] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application also intends to include these modifications and variations.

Claims

1. A vertical under-pinning drop-type gravimetric balance, characterized in that, The utility model provides a material mixing and conveying device, which comprises a base (1), a hopper (2) for storing materials, a spherical hopper (3) arranged at the bottom end of the hopper (2), a weighing platform component (4) for weighing materials, a support plate (5) arranged on the weighing platform component (4), stirring blades (6) for stirring materials, a screw (7) for conveying materials, a transmission box (8) mounted on the support plate (5), and a first driving device (9) for driving the transmission box (8) to operate; a top cover (21) is mounted at the top end of the hopper (2); a feeding pipe (22) is arranged on the top cover (21); the spherical hopper (3) is fixedly installed on the support plate (5) through a bending plate (31); the weighing platform component (4) is arranged on the base (1); the stirring blades (6) and the screw (7) are both arranged on the transmission shaft of the transmission box (8); the transmission box (8) is mounted on the support plate (5); the output shaft of the first driving device (9) is in transmission connection with the transmission shaft of the transmission box (8); a discharging pipe (32) is connected to the bottom end of the spherical hopper (3); a discharging opening (33) is arranged on the discharging pipe (32). A second driving device (211) is further arranged on the top cover (21); an obliquely extending vertical stirring rod (212) is arranged on the output shaft of the second driving device (211) and located in the inner cavity of the hopper (2).

2. A vertical under-pinning weigh scale as claimed in claim 1 wherein, The weighing platform component (4) comprises an organ type cover shell (41), a weighing sensor (42), a sensor gasket (43), and a protection block (44); the organ type cover shell (41) is mounted on the base (1); the support plate (5) is arranged on the top of the organ type cover shell (41); the weighing sensor (42) is mounted in the inner cavity of the organ type cover shell (41), and the bottom end of the weighing sensor (42) is connected with the sensor gasket (43); the sensor gasket (43) is arranged on the base (1); the organ type cover shell (41) is provided with four groups of protection blocks (44) arranged in a rectangular array at the connection position of the organ type cover shell (41) and the base (1).

3. A vertical under-pinning weigh scale as claimed in claim 1 wherein, Four groups of rubber pads (11) arranged in a rectangular array are arranged at the bottom of the base (1).

4. A vertical under-pinning weigh scale as claimed in claim 1 wherein, The first driving device (9) and the second driving device (211) are both motors.

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