Weighing metering hopper

Abstract

The utility model relates to the technical field of mixer accessories, in particular to a weighing metering hopper which comprises a shell and a weighing unit installed in the shell, a weighing plate is arranged on the periphery of the weighing unit, a supporting plate is arranged on the inner wall of the shell, the weighing plate is oppositely arranged above the supporting plate, and a weighing sensor is installed between the weighing plate and the supporting plate. The weighing unit comprises a discharging container and a spiral piece, the weighing plate is arranged on the periphery of the discharging container, a cross beam is arranged on the top of the discharging container, a shaft rod located at the axis position of the discharging container is rotationally connected to the cross beam, a sliding block sleeves the shaft rod in a sliding mode, the spiral piece is fixedly arranged on the periphery of the sliding block, and a transmission motor is fixedly installed on the cross beam. The output end of the transmission motor is in transmission connection with the shaft rod through a transmission belt. According to the weighing and metering hopper, through the rotatable spiral pieces, the spiral pieces can move to the tops of wood fiber stacks, the wood fiber stacks are compacted through the gravity of the sliding blocks and the spiral pieces, and gaps between the wood fiber stacks are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of mixer accessories, in particular to a weighing and metering hopper. Background Art

[0002] In the papermaking industry, accurate weighing and metering of papermaking raw materials is a key link to ensure paper quality and production efficiency. For example, the patent with announcement number CN214526494U discloses a new type of metering device for papermaking chemicals. When receiving materials, the electromagnetic valve is opened, and the materials in the hopper are discharged from the discharge pipe to the metering pipe. With the cooperation of the support plate and the metering pipe, the weighing sensor can be used for weighing. When the weight of the powder in the metering pipe reaches the set value, the electromagnetic valve is immediately closed, and then the electric push rod drives the support plate to move to the left, thereby discharging the materials in the metering pipe, and the metering of materials is more accurate and convenient.

[0003] The previous metering hopper design was relatively simple and could not effectively compact the wood fiber pile. Due to the characteristics of the wood fiber itself, such as its fluffy and irregular shape, it is easy to form uneven accumulation in an ordinary hopper, resulting in large gaps between the wood fiber piles. The amount of wood fiber that can be accommodated is limited, which greatly limits the amount of wood fiber that can be weighed in a single weighing. Utility Model Content

[0004] In order to solve the problem that the existing hopper lacks a compacting mechanism, resulting in the weighing space inside the hopper not being effectively utilized, the utility model provides a weighing and metering hopper, which can move the spiral blade to the top of the wood fiber pile through a rotatable spiral blade, and compacts the wood fiber pile by the gravity of the slider and the spiral blade, thereby reducing the gaps between the wood fiber piles.

[0005] The utility model provides a weighing and metering hopper, including a shell and a weighing unit installed inside the shell, a weighing plate is arranged on the periphery of the weighing unit, a support plate is arranged on the inner wall of the shell, the weighing plate is relatively arranged above the support plate, a weighing sensor is installed between the weighing plate and the support plate, the weighing unit includes a feeding container and a spiral piece, the weighing plate is arranged on the periphery of the feeding container, a crossbeam is arranged on the top of the feeding container, a shaft located at the axial center of the feeding container is rotatably connected to the crossbeam, a slider is slidably sleeved on the shaft, and the spiral piece is fixedly arranged on the periphery of the slider. The spiral piece is driven to rotate by the shaft, so that the wood fiber enters the bottom of the barrel along the spiral piece, and at the same time, the spiral piece can move upward along the shaft to the top of the wood fiber pile under the thrust of the wood fiber pile, and the wood fiber is compacted by the gravity of the slider and the spiral piece to reduce the gaps between the wood fibers.

[0006] Furthermore, a transmission motor is fixedly mounted on the crossbeam, and the output end of the transmission motor is connected to the shaft rod through a transmission belt. The transmission motor drives the shaft rod to rotate, that is, drives the spiral piece to rotate.

[0007] Furthermore, the sliding sleeve on the shaft rod is provided with a limiting ring, the limiting ring is placed below the slider, and a locking screw is provided on the limiting ring. The lowest position of the spiral piece is limited by the cooperation of the limiting ring and the locking screw.

[0008] Further, the shaft rod is sleeved with a spring on its periphery, and the spring is placed between the slide block and the crossbeam. Through the thrust of the spring, the pressure applied by the spiral piece to the wood fiber pile can be increased.

[0009] Furthermore, a compression spring ring is slidably arranged on the shaft rod through an adjusting member, and the compression spring ring is placed above the spring. The compression amplitude of the spring can be adjusted by adjusting the position of the compression spring ring on the shaft rod.

[0010] Furthermore, the adjusting member includes an adjusting screw and an adjusting ring screwed on the adjusting screw, the compression spring ring is fixedly connected to the adjusting ring through a connecting block, a cavity for accommodating the adjusting screw and the adjusting ring is provided in the shaft, a sliding groove for longitudinal movement of the connecting block is provided on the outer wall of the shaft, the sliding groove is connected to the cavity, the adjusting screw passes through the crossbeam and is provided with an adjusting handwheel. The position of the compression spring ring on the shaft is adjusted by the cooperation of the adjusting screw and the adjusting ring.

[0011] Furthermore, the material discharge container comprises a barrel, a weighing plate is arranged on the outer periphery of the barrel, the lower end of the barrel is conical and fixedly connected with a material discharge pipe, and an electric control valve is installed on the material discharge pipe. Material discharge is controlled by the electric control valve.

[0012] Furthermore, a cover plate is fixedly connected above the shell, and a feed port is arranged on the cover plate, and the feed port is opposite to the barrel. The wood fiber is poured from the feed port and then enters the barrel for weighing and feeding.

[0013] The beneficial effects of the utility model are:

[0014] The utility model provides a weighing and metering hopper. A rotatable spiral piece is arranged in a barrel so that the spiral piece can move upward to the top of the wood fiber pile under the thrust of the wood fiber pile, and the wood fiber pile is compacted by the gravity of a slider and the spiral piece to reduce the gaps between the wood fiber piles, so that a larger amount of wood fiber can be stored in a feeding container, thereby achieving the purpose of weighing and metering more wood fibers. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the specific implementation of the utility model or the technical solution in the prior art, the drawings required for use in the specific implementation or the prior art description will be briefly introduced below. Obviously, the drawings described below are some implementations of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 It is a schematic diagram of the external structure of the hopper;

[0017] Figure 2 It is a schematic diagram of the internal structure of the hopper;

[0018] Figure 3 It is a planar structural diagram inside the barrel;

[0019] Figure 4 It is a three-dimensional structural diagram inside the barrel;

[0020] Figure 5 It is a schematic diagram of the structure of the regulating member;

[0021] In the figure, 1. housing, 2. weighing plate, 3. support plate, 4. weighing sensor, 5. unloading container, 6. spiral sheet, 7. crossbeam, 8. shaft rod, 9. slider, 10. transmission motor, 11. transmission belt, 12. limit ring, 13. locking screw, 14. spring, 15. compression spring ring, 16. adjusting screw, 17. adjusting ring, 18. connecting block, 19. adjusting hand wheel, 20. unloading pipe, 21. electric control valve, 22. cover plate, 23. feed port. DETAILED DESCRIPTION

[0022] The technical solution of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all of the embodiments.

[0023] In order to reduce the gaps between wood fibers and store more wood fibers in the barrel, a weighing and metering hopper is designed, such as Figure 1 and 2 As shown, it includes a housing 1 and a weighing unit installed inside the housing 1, a weighing plate 2 is arranged on the periphery of the weighing unit, a supporting plate 3 is arranged on the inner wall of the housing 1, the weighing plate 2 is relatively arranged above the supporting plate 3, and a weighing sensor 4 is installed between the weighing plate 2 and the supporting plate 3. Among them, two groups of weighing plates 2, supporting plates 3 and weighing sensors 6 are correspondingly arranged, and are symmetrically arranged on both sides of the weighing unit. The weight of the weighing unit can be detected by the weighing sensor 6, and the weight of the raw materials fed can be measured by calculating the weight difference before and after the weighing unit is fed.

[0024] Specifically, the weighing unit includes a feeding container 5 and a spiral piece 6, the weighing plate 2 is arranged on the periphery of the feeding container 5, a crossbeam 7 is arranged on the top of the feeding container 5, a shaft rod 8 located at the axial position of the feeding container 5 is rotatably connected to the crossbeam 7, a slider 9 is slidably sleeved on the shaft rod 8, the spiral piece 6 is fixedly arranged on the periphery of the slider 9, a transmission motor 10 is fixedly installed on the crossbeam 7, and the output end of the transmission motor 10 is transmission-connected to the shaft rod 8 through a transmission belt 11.

[0025] During the wood fiber feeding process, the transmission motor 10 is started to drive the shaft 8 to rotate, and the shaft 8 drives the spiral piece 6 to rotate counterclockwise, so that the rotating spiral piece 6 can move upward under the thrust between it and the wood fiber and move to the top of the wood fiber pile inside the feeding container 5. At this time, the wood fiber pile is compacted by the gravity of the slider 9 and the spiral piece 6, reducing the gap between the wood fiber piles, so that more wood fibers can be stored inside the feeding container 5, thereby achieving the purpose of weighing and measuring more wood fibers.

[0026] The feeding container 5 includes a barrel, a weighing plate 2 is arranged on the outer periphery of the barrel, the lower end of the barrel is conical and fixedly connected with a feeding pipe 20, and an electric control valve 21 is installed on the feeding pipe 20. After the wood fiber enters the barrel, it can be weighed by the weighing sensor 6. After the weighing is completed, the electric control valve 21 is opened, and the material can be discharged through the feeding pipe 20.

[0027] A cover plate 22 is fixedly connected to the upper part of the housing 1, and a feed port 23 is arranged on the cover plate 22, and the feed port 23 is opposite to the barrel. The wood fiber is poured into the feed port 23, and the wood fiber enters the barrel.

[0028] like Figure 3 and 4 As shown, in order to reduce the friction damage to the barrel caused by the spiral blade 6 contacting the tapered lower end of the barrel, a sliding sleeve on the shaft 8 is provided with a limit ring 12, which is placed under the slider 9 and has a locking screw 13.

[0029] After the height of the limit ring 12 is adjusted, the minimum height of the slider 9 can be limited by the limit ring 12, and then the locking screw 13 is rotated so that the locking screw 13 and the shaft 8 are abutted against each other, so that the lowest position of the slider 9 and the spiral sheet 6 can be limited.

[0030] A spring 14 is sleeved around the shaft rod 8, and the spring 14 is placed between the slider 9 and the crossbeam 7. Under the thrust of the spring 14, the pressure applied by the spiral piece 6 to the wood fiber pile can be increased to further compact the wood fiber pile.

[0031] A compression spring ring 15 is slidably arranged on the shaft rod 8 through an adjusting member, and the compression spring ring 15 is placed above the spring 14. The position of the compression spring ring 15 can be adjusted by the adjusting member, and after the position adjustment of the compression spring ring 15 is completed, the compression amplitude of the spring 14 can be adjusted.

[0032] like Figure 5As shown, specifically, the adjusting member includes an adjusting screw 16 and an adjusting ring 17 screwed on the adjusting screw 16, the compression spring ring 15 is fixedly connected to the adjusting ring 17 through a connecting block 18, a cavity for accommodating the adjusting screw 16 and the adjusting ring 17 is provided in the shaft 8, a sliding groove for longitudinal movement of the connecting block 18 is provided on the outer wall of the shaft 8, the sliding groove is communicated with the cavity, the adjusting screw 16 passes through the cross beam 7 and is provided with an adjusting hand wheel 19. By rotating the adjusting hand wheel 19 to drive the adjusting screw 16 to rotate, the compression spring ring 15 can be driven to move longitudinally through the adjusting ring 17, and after the movement is completed, the position of the compression spring ring 15 can be locked by the thread, and the stability is good.

[0033] The above description is only illustrative rather than restrictive of the present invention. Those skilled in the art will understand that many modifications, changes or equivalents may be made without departing from the spirit and scope defined by the appended claims, but all will fall within the scope of protection of the present invention.

Claims

1. A weighing and metering hopper, comprising a housing (1) and a weighing unit installed inside the housing (1), wherein a weighing plate (2) is arranged on the periphery of the weighing unit, a supporting plate (3) is arranged on the inner wall of the housing (1), the weighing plate (2) is arranged relatively above the supporting plate (3), and a weighing sensor (4) is installed between the weighing plate (2) and the supporting plate (3). Features: The weighing unit comprises a material discharging container (5) and a spiral blade (6), the weighing plate (2) is arranged on the periphery of the material discharging container (5), a crossbeam (7) is arranged on the top of the material discharging container (5), a shaft (8) located at the axial center of the material discharging container (5) is rotatably connected to the crossbeam (7), a slider (9) is slidably sleeved on the shaft (8), and the spiral blade (6) is fixedly arranged on the periphery of the slider (9).

2. A weighing and metering hopper according to claim 1, characterized in that: A transmission motor (10) is fixedly mounted on the crossbeam (7), and an output end of the transmission motor (10) is transmission-connected to the shaft rod (8) via a transmission belt (11).

3. A weighing and metering hopper according to claim 2, characterized in that: The sliding sleeve on the shaft rod (8) is provided with a limiting ring (12), the limiting ring (12) is placed below the sliding block (9), and a locking screw (13) is provided on the limiting ring (12).

4. A weighing and metering hopper according to claim 3, characterized in that: A spring (14) is sleeved on the outer periphery of the shaft rod (8), and the spring (14) is placed between the slider (9) and the crossbeam (7).

5. A weighing and metering hopper according to claim 4, characterized in that: A compression spring ring (15) is slidably arranged on the shaft rod (8) via an adjusting member, and the compression spring ring (15) is placed above the spring (14).

6. A weighing and metering hopper according to claim 5, characterized in that: The adjusting member comprises an adjusting screw (16) and an adjusting ring (17) screwed on the adjusting screw (16); the compression spring ring (15) is fixedly connected to the adjusting ring (17) via a connecting block (18); a cavity for accommodating the adjusting screw (16) and the adjusting ring (17) is provided in the shaft (8); a sliding groove for longitudinal movement of the connecting block (18) is provided on the outer wall of the shaft (8); the sliding groove is communicated with the cavity; the adjusting screw (16) passes through the cross beam (7) and is provided with an adjusting hand wheel (19).

7. A weighing and metering hopper according to claim 1, characterized in that: The material discharge container (5) comprises a barrel, the weighing plate (2) is arranged on the periphery of the barrel, the lower end of the barrel is conical and is fixedly connected to a material discharge pipe (20), and an electric control valve (21) is installed on the material discharge pipe (20).

8. A weighing and metering hopper according to claim 7, characterized in that: A cover plate (22) is fixedly connected to the upper part of the housing (1), and a feed port (23) is provided on the cover plate (22), wherein the feed port (23) is opposite to the barrel.

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