Compact metering weightlessness scale with single screw and double screws capable of being quickly disassembled, assembled and exchanged

Abstract

The invention relates to a compact metering weightlessness scale with single and double screws capable of being quickly disassembled, assembled and exchanged. Comprising a fixed seat, a straight barrel type hopper used for storing materials, a square hopper arranged at the bottom end of the straight barrel type hopper, a weighing platform component used for weighing the materials, a drum type horizontal stirring rod used for stirring the materials, a screw rod used for conveying the materials and a transmission assembly installed on the fixed seat. The driving device is used for driving the transmission assembly to operate; the speed reducer is mounted on one side of the transmission assembly; a hopper cover is mounted at the top end of the straight-barrel-type hopper; the square hopper is arranged on the other side of the transmission assembly. The technical problems that in the prior art, due to the fact that two weightlessness scales are different in structure and connector size, the original whole system arrangement needs to be overturned, inconvenience is caused, the replacement cost is amazing, in addition, a screw rod is a quick-wear part and needs to be maintained and replaced, and meanwhile the screw rod of the original structure is also inconvenient to disassemble and assemble are solved.

Description

Technical Field

[0001] The present invention relates to the field of metering loss-in-weight scales, and in particular to a compact metering loss-in-weight scale with quick disassembly, assembly and interchangeability of single and double screws. Background Art

[0002] The commonly used metering loss-in-weight scales in the existing market are usually of two types: single-screw and double-screw. The single-screw metering loss-in-weight scale is usually used for granular materials, and the double-screw metering loss-in-weight scale is usually used for powder materials. This means that if the material state changes during the customer's production, another type of metering loss-in-weight scale needs to be replaced. Due to the differences in the structures and interface dimensions of the two loss-in-weight scales, it is necessary to overthrow the original entire system layout, which is very inconvenient and the replacement cost is astonishing. In addition, the screw is a vulnerable part that needs to be maintained and replaced, and it is also very inconvenient to disassemble and assemble the screw in the original structure. Summary of the Invention

[0003] By providing a compact metering loss-in-weight scale with quick disassembly, assembly and interchangeability of single and double screws in the embodiments of the present application, the technical problems in the prior art solutions are solved, that is, due to the differences in the structures and interface dimensions of the two loss-in-weight scales, it is necessary to overthrow the original entire system layout, which is very inconvenient and the replacement cost is astonishing. In addition, the screw is a vulnerable part that needs to be maintained and replaced, and it is also very inconvenient to disassemble and assemble the screw in the original structure.

[0004] The technical solutions adopted in the embodiments of the present application are as follows:

[0005] A compact metering loss-in-weight scale with quick disassembly, assembly and interchangeability of single and double screws, comprising a fixed seat, a straight cylindrical hopper for storing materials, a square hopper arranged at the bottom end of the straight cylindrical hopper, a weighing platform component for weighing materials, a drum-type horizontal stirring rod for stirring materials, a screw for conveying materials, a transmission component installed on the fixed seat, a driving device for driving the transmission component to operate, and a speed reducer installed on one side of the transmission component; a hopper cover is installed at the top end of the straight cylindrical hopper; the square hopper is arranged on the other side of the transmission component; the transmission component is installed on the fixed seat; the fixed seat is installed on the weighing platform component; the drum-type horizontal stirring rod and the screw are both arranged on the transmission component drive shaft; the output shaft of the driving device is in transmission connection with the speed reducer, and the output shaft of the speed reducer is in transmission connection with the transmission component drive shaft; a discharge pipe is connected to the bottom end of the square hopper; a blanking port is arranged on the discharge pipe.

[0006] A further technical solution is as follows: The transmission assembly includes a transmission cover, a horizontal stirring shaft, a driven shaft, a transmission chain, a driving sprocket, a driven sprocket, a mounting plate, a transmission shaft assembly, and a driven shaft sleeve; the transmission cover is mounted on the fixed seat; the mounting plate is detachably mounted on one side of the transmission cover; the horizontal stirring shaft and the transmission shaft assembly are both rotatably connected to the fixed seat; one end of the horizontal stirring shaft is drivingly connected to the drum-type horizontal stirring rod, and a first coupling is provided at the other end of the horizontal stirring shaft; one end of the transmission shaft assembly is drivingly connected to the screw, and a second coupling is provided at the other end of the transmission shaft assembly; the first coupling is provided on the output shaft of the reducer; the second coupling is provided on the driven shaft; the driven shaft is mounted on the mounting plate through the driven shaft sleeve; the driving sprocket is arranged around the output shaft of the reducer; the driven sprocket is arranged around the driven shaft; the transmission chain is wound around the driving sprocket and the driven sprocket; the reducer is mounted on the mounting plate.

[0007] A further technical solution is as follows: The weighing platform component includes a bellows-type housing, a weighing sensor, a sensor gasket, and a base; the bellows-type housing is mounted on the base; the fixed seat is arranged on the top of the bellows-type housing; the weighing sensor is mounted in the inner cavity of the bellows-type housing, and the bottom end of the weighing sensor is connected with the sensor gasket; the sensor gasket is arranged on the base.

[0008] A further technical solution is as follows: Four groups of rubber pads arranged in a rectangular array are provided at the bottom of the base.

[0009] A further technical solution is as follows: The driving device is a motor.

[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 settings of the fixed seat, straight-tube hopper, square hopper, weighing platform component, drum-type horizontal stirring rod, screw, transmission component, driving device and reducer, through the cooperative design of the detachable mounting plate and the coupling, the drive shaft component and the screw form an independent module. By adopting the split structure of sprocket chain drive and driven shaft sleeve, the physical decoupling of the power transmission system and the executing component is realized. During maintenance, only the mounting plate needs to be disassembled to complete the replacement of the screw, and the disassembly and assembly efficiency is significantly improved compared with the traditional structure. Through the integrated design of the transmission cover, the interfaces of the single / double screw system are standardized. Through the coupling size adaptation technology, the plug-and-play of screws of different specifications is realized. Three major breakthroughs have been achieved in the field of metering loss-in-weight scales through mechanical innovation: for the first time, the physical compatibility of the single and double screw systems has been completed, the modular quick-change drive structure has been pioneered, and the coordinated control of high-precision dynamic weighing and complex material handling has been realized. Therefore, the technical problems in the existing technical solutions are solved. Due to the differences in the structures and interface sizes of the two loss-in-weight scales, the entire original system layout needs to be overturned, which is very inconvenient, the replacement cost is astonishing, and in addition, the screw is a vulnerable part that needs maintenance and replacement, and it is also very inconvenient to disassemble and assemble the screw in the original structure. Description of the Drawings

[0012] Figure 1 It is a schematic diagram of the overall structure of a compact single / double screw quick-disassembly, replacement and interchangeable metering loss-in-weight scale in an embodiment of the present invention.

[0013] Figure 2 It is a cross-sectional view of the overall structure of a compact single / double screw quick-disassembly, replacement and interchangeable metering loss-in-weight scale in an embodiment of the present invention.

[0014] Figure 3 It is a partial schematic diagram for showing the transmission component in an embodiment of the present invention.

[0015] In the figure: 1. Mounting base plate; 2. Straight-tube hopper; 21. Hopper cover; 3. Square hopper; 31. Discharge pipe; 32. Feeding port; 4. Weighing platform component; 41. Bellows-type housing; 42. Weighing sensor; 43. Sensor gasket; 44. Base; 441. Rubber pad; 5. Drum-type horizontal stirring rod; 6. Screw; 7. Transmission component; 70. First coupling; 701. Second coupling; 71. Transmission cover; 72. Horizontal stirring shaft; 73. Driven shaft; 74. Transmission chain; 75. Driving sprocket; 76. Driven sprocket; 77. Mounting plate; 78. Drive shaft component; 79. Driven shaft sleeve; 8. Driving device; 9. Reducer. Detailed Embodiments

[0016] The embodiment of the present application provides a compact single-screw and double-screw metering loss-in-weight scale with quick disassembly and interchangeability, thereby solving the technical problems in the prior art solution that the differences in the structures and interface sizes of the two loss-in-weight scales require the overturning of the original entire system layout, which is very inconvenient and has an alarming replacement cost. In addition, the screw is a wearing part that requires maintenance and replacement, and the original structure is also inconvenient to disassemble and assemble the screw.

[0017] The technical solution in the embodiment of the present application is to solve the above problems, and the overall idea is as follows:

[0018] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0019] A compact single-screw and double-screw quick-disassembly and interchangeable metering loss-in-weight scale, such as Figure 1 , Figure 2 and Figure 3 As shown, it includes a fixed base 1, a straight-cylinder hopper 2 for storing materials, a square hopper 3 arranged at the bottom of the straight-cylinder hopper 2, a weighing platform component 4 for weighing materials, a drum-type horizontal stirring rod 5 for stirring materials, a screw 6 for conveying materials, a transmission assembly 7 installed on the fixed base 1, a driving device 8 for driving the transmission assembly 7 to operate, and a reducer 9 installed on one side of the transmission assembly 7. A hopper cover 21 is installed at the top of the straight-cylinder hopper 2. The square hopper 3 is arranged on the other side of the transmission assembly 7. The transmission assembly 7 is installed on the fixed base 1. The fixed base 1 is installed on the weighing platform component 4. The drum-type horizontal stirring rod 5 and the screw 6 are both arranged on the transmission shaft of the transmission assembly 7. The driving device 8 is preferably a motor. The output shaft of the driving device 8 is connected to the reducer 9, and the output shaft of the reducer 9 is connected to the transmission shaft of the transmission assembly 7. A discharge pipe 31 is connected to the bottom of the square hopper 3. A discharge port 32 is arranged on the discharge pipe 31.

[0020] The transmission assembly 7 includes a transmission cover 71, a horizontal stirring shaft 72, a driven shaft 73, a transmission chain 74, a driving sprocket 75, a driven sprocket 76, a mounting plate 77, a transmission shaft assembly 78 and a driven shaft sleeve 79. The transmission cover 71 is installed on the fixed seat 1. The mounting plate 77 is detachably installed on one side of the transmission cover 71. Both the horizontal stirring shaft 72 and the transmission shaft assembly 78 are rotatably connected to the fixed seat 1. One end of the horizontal stirring shaft 72 is drivingly connected to the drum-type horizontal stirring rod 5, and a first coupling 70 is provided at the other end of the horizontal stirring shaft 72. One end of the transmission shaft assembly 78 is drivingly connected to the screw 6, and a second coupling 701 is provided at the other end of the transmission shaft assembly 78. The first coupling 70 is provided on the output shaft of the speed reducer 9. The second coupling 701 is provided on the driven shaft 73. The driven shaft 73 is installed on the mounting plate 77 through the driven shaft sleeve 79. The driving sprocket 75 is arranged around the output shaft of the speed reducer 9. The driven sprocket 76 is arranged around the driven shaft 73. The transmission chain 74 is wound around the driving sprocket 75 and the driven sprocket 76. The speed reducer 9 is installed on the mounting plate 77.

[0021] When the output shaft of the speed reducer 9 rotates, it can drive the driving sprocket 75 to rotate, and then can drive the transmission chain 74 and the driven sprocket 76 to rotate simultaneously. By the rotation of the driven sprocket 76, the driven shaft 73 can be driven to rotate. Since one end of the horizontal stirring shaft 72 is drivingly connected to the drum-type horizontal stirring rod 5, and a first coupling 70 is provided at the other end of the horizontal stirring shaft 72, one end of the transmission shaft assembly 78 is drivingly connected to the screw 6, and a second coupling 701 is provided at the other end of the transmission shaft assembly 78, the first coupling 70 is provided on the output shaft of the speed reducer 9, and the second coupling 701 is provided on the driven shaft 73, the drum-type horizontal stirring rod 5 and the screw 6 can be rotated simultaneously by the rotation of the output shaft of the speed reducer 9.

[0022] The weighing table component 4 includes a bellows-type housing 41, a weighing sensor 42, a sensor gasket 43 and a base 44. The bellows-type housing 41 is installed on the base 44. The fixed seat 1 is arranged on the top of the bellows-type housing 41. The weighing sensor 42 is installed in the inner cavity of the bellows-type housing 41, and a sensor gasket 43 is connected to the bottom end of the weighing sensor 42. The sensor gasket 43 is arranged on the base 44. The bellows-type housing 41 has a certain free expansion and contraction property in the natural state, so as to isolate the influence of the upper and lower bolt connections on the weighing sensor 42 during metering and batching.

[0023] Four groups of rubber pads 441 are arranged in a rectangular array at the bottom of the base 44. Through the arrangement of the rubber pads 441, the whole equipment can be protected during transportation.

[0024] The control unit controls the driving device 8 (motor) to feed the lower end equipment such as an extruder, a mixer, a reactor, etc. at a set flow rate. The output shaft of the driving device 8 (motor) drives the output shaft of the reducer 9 to rotate. Since the output shaft of the reducer 9 is connected to the transmission assembly 7, and the drum-type horizontal stirring rod 5 and the screw 6 are both arranged on the transmission shaft of the transmission assembly 7, the drum-type horizontal stirring rod 5 and the screw 6 can be rotated by the output rotation of the reducer 9. By rotating the drum-type horizontal stirring rod 5 and the screw 6 in the square hopper 3, the material can be sequentially discharged from the square hopper 3 along the discharge pipe 31 and through the discharge port 32. The whole process is a dynamic weighing and metering process. Since the mounting plate 77 is detachably mounted on one side of the transmission cover 71, when the screw 6 needs to be replaced, the staff only needs to open the mounting plate 77 and remove the second coupling 701, and the transmission shaft assembly 78 and the screw 6 can be directly removed, and the screw can be directly replaced. The whole replacement process is very convenient, which is convenient for the staff to operate.

[0025] Due to the use of the fixed seat 1, straight barrel hopper 2, square hopper 3, weighing platform component 4, drum-type horizontal stirring rod 5, screw 6, transmission assembly 7, drive device 8 and reducer 9, the drive shaft assembly 78 and screw 6 form an independent module through the matching design of the detachable mounting plate 77 and the coupling, and the physical decoupling of the power transmission system and the actuator is achieved by adopting the separate structure of sprocket chain transmission and driven shaft sleeve 79. During maintenance, the screw 6 can be replaced by removing the mounting plate 77, which significantly improves the disassembly and assembly efficiency compared to the traditional structure. The integrated design of the transmission cover 71 standardizes the interface of the single / double screw system. Through the coupling size adaptation technology, plug-and-play of screws of different specifications can be achieved. Through mechanical innovation, three major breakthroughs have been achieved in the field of metering loss-in-weight scales: the physical compatibility of single and double screw systems has been achieved for the first time, the modular quick-change transmission structure has been pioneered, and the coordinated control of high-precision dynamic weighing and complex material processing has been achieved. This has solved the technical problems in the existing technical solutions that due to the differences in the structures and interface sizes of the two loss-in-weight scales, the original entire system layout needs to be overturned, which is very inconvenient and the replacement cost is staggering. In addition, the screw is a wearing part that requires maintenance and replacement, and the original structure is also inconvenient to disassemble and assemble the screw.

[0026] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0027] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention is also intended to include these modifications and variations.

Claims

1. A compact single-screw and double-screw quick-disassembly and interchangeable weight loss scale, characterized in that: The invention comprises a fixed seat (1), a straight-cylinder hopper (2) for storing materials, a square hopper (3) arranged at the bottom of the straight-cylinder hopper (2), a weighing platform component (4) for weighing materials, a drum-type horizontal stirring rod (5) for stirring materials, a screw (6) for conveying materials, a transmission assembly (7) installed on the fixed seat (1), a driving device (8) for driving the transmission assembly (7) to operate, and a reducer (9) installed on one side of the transmission assembly (7); a hopper cover (21) is installed at the top of the straight-cylinder hopper (2); the square hopper (3) is provided with a The square hopper (3) is arranged on the other side of the transmission component (7); the transmission component (7) is mounted on the fixed seat (1); the fixed seat (1) is mounted on the weighing platform component (4); the drum-type horizontal stirring rod (5) and the screw (6) are both arranged on the transmission shaft of the transmission component (7); the output shaft of the driving device (8) is connected to the reducer (9), and the output shaft of the reducer (9) is connected to the transmission shaft of the transmission component (7); the bottom end of the square hopper (3) is connected to a discharge pipe (31); and a discharge port (32) is arranged on the discharge pipe (31).

2. A compact single-screw and double-screw quick-disassembly and interchangeable weight-loss scale as claimed in claim 1, characterized in that: The transmission assembly (7) comprises a transmission cover (71), a horizontal stirring shaft (72), a driven shaft (73), a transmission chain (74), a driving sprocket (75), a driven sprocket (76), a mounting plate (77), a transmission shaft assembly (78) and a driven shaft sleeve (79); the transmission cover (71) is mounted on a fixed seat (1); the mounting plate (77) is detachably mounted on one side of the transmission cover (71); the horizontal stirring shaft (72) and the transmission shaft assembly (78) are both rotatably connected to the fixed seat (1); one end of the horizontal stirring shaft (72) is transmission-connected to the drum-type horizontal stirring rod (5), and the other end of the horizontal stirring shaft (72) is provided with a first coupling (70); the transmission shaft assembly One end of the member (78) is drivingly connected to the screw rod (6), and the other end of the transmission shaft assembly (78) is provided with a second coupling (701); the first coupling (70) is provided on the output shaft of the reducer (9); the second coupling (701) is provided on the driven shaft (73); the driven shaft (73) is mounted on the mounting plate (77) through the driven shaft sleeve (79); the driving sprocket (75) is arranged around the output shaft of the reducer (9); the driven sprocket (76) is arranged around the driven shaft (73); the transmission chain (74) is wound around the driving sprocket (75) and the driven sprocket (76); and the reducer (9) is mounted on the mounting plate (77).

3. A compact single-screw and double-screw quick-disassembly and interchangeable weight-loss scale as claimed in claim 1, characterized in that: The weighing platform component (4) comprises an accordion-type cover (41), a weighing sensor (42), a sensor gasket (43) and a base (44); the accordion-type cover (41) is installed on the base (44); the fixing seat (1) is arranged on the top of the accordion-type cover (41); the weighing sensor (42) is installed in the inner cavity of the accordion-type cover (41), and the bottom end of the weighing sensor (42) is connected to the sensor gasket (43); the sensor gasket (43) is arranged on the base (44).

4. A compact single-screw and double-screw quick-disassembly and interchangeable weight-loss scale as claimed in claim 3, characterized in that: Four groups of rubber pads (441) arranged in a rectangular array are arranged at the bottom of the base (44).

5. A compact single-screw and double-screw quick-disassembly and interchangeable weight-loss scale as claimed in claim 1, characterized in that: The driving device (8) is a motor.

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