Quantitative and controllable blanking gate valve for powder
By setting a material inlet with a pointed structure on the slide valve core and using a driver to drive the slide valve core to move laterally, the problem that existing slide valves cannot accurately control small or micro amounts of powder is solved, and accurate weighing and efficient conveying of powder are achieved.
Patent Information
- Application Number
- CN202423314086.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2034-12-31
AI Technical Summary
Existing slide gate valves cannot achieve precise control over small or trace amounts of powder, resulting in poor practicality.
A feed gate valve with controllable powder quantity is designed. By setting a feed port with a sharp corner structure on the valve core and using an actuator to drive the valve core to move laterally, the opening degree can be adjusted and precisely controlled by the cooperation of multiple discharge ports and feed ports.
It enables precise weighing and small- or micro-volume control of powder materials, improving the efficiency and practicality of powder material conveying.
Smart Images
Figure CN223560587U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the plug-in valve technical field, concretely relates to a powder ration controllable blanking plug-in valve. BACKGROUND
[0002] In the powder metering device, the powder is discharged from the silo to the bucket elevator and other conveying equipment, and a plug-in valve is arranged between the silo and the conveying equipment to control the on-off of the discharge.
[0003] In the prior art, a plug-in valve usually has a plug plate that can move horizontally, and a rectangular material conveying port is arranged on the plug plate. During the horizontal movement of the plug plate, the material conveying port can correspond to the material leakage port arranged in the plug-in valve to ensure that the opening of the material conveying port can be adjusted, thereby realizing the quantitative control of the powder. However, during the control of the discharge of the plug plate, it is impossible to ensure the control of a small amount or a trace amount of powder, and accurate weighing cannot be performed. UTILITY MODEL CONTENTS
[0004] The utility model embodiment provides a powder ration controllable blanking plug-in valve, which aims to solve the poor practicability of the existing plug-in valve caused by the inability to adapt to the control of a small amount or a trace amount of powder.
[0005] To achieve the above-mentioned purpose, the utility model adopts the technical scheme of providing a powder ration controllable blanking plug-in valve, which comprises:
[0006] A valve seat has a material conveying cavity, the top end of the material conveying cavity is provided with a feeding port, and the bottom end is provided with a discharging port; a partition is arranged in the valve seat, and a material leakage port is arranged on the partition;
[0007] A plug-in valve core is arranged in the material conveying cavity and in sliding contact with the partition, and a material conveying port corresponding to the material leakage port is arranged on the plug-in valve core; one end of the material conveying port is provided with a pointed corner structure extending outward along the moving direction of the plug-in valve core;
[0008] A driver is arranged on the valve seat and connected with the plug-in valve core to drive the plug-in valve core to move horizontally.
[0009] In a possible implementation manner, the material leakage port is provided with a plurality of material leakage ports, and the material leakage ports are arranged at intervals in the moving direction of the plug-in valve core.
[0010] In a possible implementation manner, the material conveying port is provided with a plurality of material conveying ports, and the material conveying ports are arranged at intervals along the moving direction of the plug-in valve core.
[0011] In a possible implementation manner, the interval distance of any two adjacent material leakage ports is equal to the length of the material conveying port in the moving direction of the plug-in valve core.
[0012] The distance between any two adjacent material inlets is equal to the length of the material outlet in the direction of movement of the slide valve core.
[0013] In one possible implementation, the feed port includes a rectangular opening and a triangular opening communicating with the rectangular opening, the triangular opening being the pointed structure; the rectangular opening and the triangular opening are combined to form a pentagonal opening.
[0014] In one possible implementation, the discharge port is rectangular.
[0015] In one possible implementation, the valve seat includes:
[0016] A lower fixing plate is horizontally arranged, and the central part of the lower fixing plate is the partition; a feeding funnel is connected to the bottom of the lower fixing plate.
[0017] An upper fixing plate is located above the lower fixing plate and is parallel to and spaced apart from the lower fixing plate; a receiving cylinder is connected to the top of the upper fixing plate, and the upper fixing plate has a through hole communicating with the receiving cylinder;
[0018] The middle rectangular frame is located between the lower fixed plate and the upper fixed plate, and is fixedly connected to the lower fixed plate and the upper fixed plate. The middle rectangular frame, the lower fixed plate and the upper fixed plate enclose a sliding space for the limiting sliding of the insert valve core.
[0019] In one possible implementation, the lower fixing plate, the upper fixing plate, and the intermediate rectangular frame are connected by bolts.
[0020] In this implementation, the valve seat is designed to connect to both the hopper and the conveying equipment. The slide valve core within the valve seat slides under the drive of the actuator, ensuring the feed port aligns with the discharge port, allowing for opening adjustment and accommodating quantitative powder feeding. The feed port features a pointed structure, enabling fine-tuning of the opening after the feed port and discharge port align, thus accommodating small or micro-volume powder control, ensuring accurate weighing, and offering strong practicality. Attached Figure Description
[0021] Figure 1 A schematic diagram of the structure of the powder metering controllable feed gate valve provided in this embodiment of the utility model;
[0022] Figure 2 A top view of the powder metering controllable feed gate valve provided in this embodiment of the utility model;
[0023] Figure 3 for Figure 2 A schematic diagram of the AA-direction cross-sectional structure of the powder metering controllable feed gate valve provided in the embodiment;
[0024] Explanation of reference numerals in the attached figures:
[0025] 10. Valve seat; 11. Lower fixed plate; 12. Upper fixed plate; 13. Middle rectangular frame; 14. Feeding funnel; 15. Receiving cylinder; 16. Feeding chamber; 17. Feeding port; 20. Slide valve core; 21. Feeding port; 22. Sharp corner structure; 30. Driver. Detailed Implementation
[0026] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0027] Please refer to the following: Figure 1 and Figure 2 The present invention provides a controllable powder feeding gate valve. The controllable powder feeding gate valve includes a valve seat 10, a gate valve core 20, and a driver 30. The valve seat 10 has a material transfer chamber 16, with an inlet at the top and an outlet at the bottom. A partition is provided in the valve seat 10, and a leakage port 17 is provided on the partition. The gate valve core 20 is disposed in the material transfer chamber 16 and slides in contact with the partition. The gate valve core 20 has a material transfer port 21 corresponding to the leakage port 17. Along the moving direction of the gate valve core 20, one end of the material transfer port 21 has an outwardly extending pointed structure 22. The driver 30 is disposed on the valve seat 10 and connected to the gate valve core 20 to drive the gate valve core 20 to move laterally.
[0028] The powder metering controllable discharge gate valve provided in this embodiment, compared with the prior art, allows for separate connection of the valve seat 10 to the hopper and conveying equipment. The gate valve core 20 in the valve seat 10 slides under the drive of the driver 30, ensuring that the feed port 21 corresponds to the discharge port 17, thus adjusting the opening degree to accommodate metered powder discharge. The feed port 21 has a pointed structure 22, allowing for fine-tuning of the opening degree after the feed port 21 and discharge port 17 are engaged, thus adapting to small or micro-volume powder control, ensuring accurate weighing, and offering strong practicality.
[0029] In this embodiment, the driver 30 only drives the slide valve core 20 to move linearly. Therefore, the driver 30 can be an electric push rod or other components that can be driven linearly. This technology is prior art and will not be described in detail here.
[0030] In some embodiments, the aforementioned discharge port 17 can be adopted as follows: Figures 2 to 3 The structure shown. See also Figures 2 to 3Multiple material discharge ports 17 are provided, and each material discharge port 17 is spaced apart in the moving direction of the slide valve core 20.
[0031] Multiple material discharge ports 17 are provided to ensure that they correspond to the material conveying ports 21, thereby ensuring the efficiency of powder conveying.
[0032] In some embodiments, the aforementioned feed port 21 may be as follows: Figures 2 to 3 The structure shown. See also Figures 2 to 3 Multiple material transfer ports 21 are provided, and each material transfer port 21 is spaced apart along the moving direction of the slide valve core 20.
[0033] Each material conveying port 21 corresponds one-to-one with each of the aforementioned material leakage ports 17, which can ensure a reduction in the sliding stroke of the slide valve core 20, while also ensuring that multiple ports can simultaneously convey powder, thereby improving the efficiency of powder conveying.
[0034] In some embodiments, the aforementioned material transfer port 21 and material discharge port 17 can be adopted as follows: Figure 2 The structure shown. See also Figure 2 The distance between any two adjacent discharge ports 17 is equal to the length of the material transmission port 21 in the moving direction of the slide valve core 20.
[0035] This structure ensures that after the slide plate valve core 20 slides relative to the partition until each material conveying port 21 disengages from its corresponding material leakage port 17, the material conveying ports 21 and the material leakage ports 17 are misaligned. At this time, the slide plate valve core 20 and the partition form an interception structure in the material conveying chamber 16, stopping the material feeding. When the slide plate valve core 20 moves to one side, the material conveying port 21 will overlap with the corresponding material leakage port 17, thereby realizing the downward transmission of powder. The structure is simple and highly practical.
[0036] In some embodiments, the aforementioned feed port 21 may be adopted as follows: Figure 3 The structure shown. See also Figure 3 The material conveying port 21 includes a rectangular opening and a triangular opening connected to the rectangular opening. The triangular opening has a pointed corner structure 22. The rectangular opening and the triangular opening are combined to form a pentagonal opening.
[0037] As the material inlet 21 moves with the slide valve core 20 and the opening of the material outlet 17 gradually decreases, the overlapping area between the material inlet 21 and the material outlet 17 will gradually decrease. The triangular opening ensures that the area of the overlapping area shrinks gradually and non-linearly within a unit of time, thereby ensuring the control of small or minute amounts of powder.
[0038] In some embodiments, the aforementioned discharge port 17 can be adopted as follows: Figure 3 The structure shown. See also Figure 3The material discharge port 17 is rectangular, and this structure ensures compatibility with the material transfer port 21.
[0039] In some embodiments, the valve seat 10 may be adopted as follows: Figure 1 and Figure 2 The structure shown. See also Figure 1 and Figure 2 The valve seat 10 includes a lower fixed plate 11, an upper fixed plate 12, and a middle rectangular frame 13. The lower fixed plate 11 is horizontally arranged, and its central part is a partition. A feeding funnel 14 is connected to the bottom of the lower fixed plate 11. The upper fixed plate 12 is located above the fixed plate and is parallel to and spaced apart from the lower fixed plate 11. A receiving cylinder 15 is connected to the top of the upper fixed plate 12, and the upper fixed plate 12 has a through hole communicating with the receiving cylinder 15. The middle rectangular frame 13 is located between the lower fixed plate 11 and the upper fixed plate 12, and is fixedly connected to both the lower fixed plate 11 and the upper fixed plate 12. The middle rectangular frame 13, the lower fixed plate 11, and the upper fixed plate 12 enclose a sliding space for the limit sliding of the slide valve core 20.
[0040] The combination of the upper fixing plate 12, the lower fixing plate 11, and the middle rectangular frame 13 facilitates the installation of the slide valve core 20 and also facilitates the opening of the leakage port 17. The structure is simple, easy to manufacture, and highly practical.
[0041] It should be noted that when the actuator 30 is an electric push rod, a sliding hole needs to be provided on the rectangular frame for the telescopic end of the electric push rod to pass through. Simultaneously, the slide valve core 20 is also a rectangular plate adapted to the rectangular frame. The slide valve core 20 is located above the lower fixed plate 11 and is in sliding contact with the lower fixed plate 11. A beveled portion can be provided at the end of the rectangular plate away from the actuator 30. The beveled portion is angled upwards to ensure that when the slide valve core 20 moves away from the actuator 30, the powder in front is pushed upwards through the beveled portion, preventing the slide valve core 20 from being intercepted by the powder.
[0042] In some embodiments, the lower fixing plate 11, the upper fixing plate 12, and the intermediate rectangular frame 13 can be adopted as follows: Figure 1 The structure shown. See also Figure 1 The lower fixing plate 11, the upper fixing plate 12, and the middle rectangular frame 13 are connected by bolts.
[0043] This connection method is easy to operate and has a strong connection strength.
[0044] In this embodiment, flange connection surfaces can be provided on both the lower fixing plate 11 and the upper fixing plate 12, and multiple holes for bolts to pass through are provided in a ring on the rectangular frame.
[0045] 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 feed gate valve with controllable powder metering, characterized in that, include: The valve seat has a material transfer chamber, with a material inlet at the top and a material outlet at the bottom; the valve seat has a partition, and a material leakage outlet is provided on the partition. A slide valve core is disposed in the material transfer chamber and slides in contact with the partition. The slide valve core is provided with a material transfer port that corresponds to the material leakage port. Along the moving direction of the slide valve core, one end of the material transfer port is provided with an outwardly extending pointed structure. An actuator, disposed on the valve seat and connected to the slide valve core, drives the slide valve core to move laterally.
2. The powder metering controllable feed gate valve as described in claim 1, characterized in that, The material leakage port is provided in multiple ways, and each material leakage port is spaced apart in the moving direction of the slide valve core.
3. The powder metering controllable feed gate valve as described in claim 2, characterized in that, The material transfer port is provided in multiple ways, and each material transfer port is spaced apart along the moving direction of the slide valve core.
4. The powder metering controllable feed gate valve as described in claim 3, characterized in that, The distance between any two adjacent discharge ports is equal to the length of the material transfer port in the direction of movement of the slide valve core; The distance between any two adjacent material inlets is equal to the length of the material outlet in the direction of movement of the slide valve core.
5. The powder metering controllable feed gate valve as described in any one of claims 1-4, characterized in that, The material transfer port includes a rectangular opening and a triangular opening communicating with the rectangular opening, wherein the triangular opening has a pointed corner structure; the rectangular opening and the triangular opening are combined to form a pentagonal opening.
6. The powder metering controllable feed gate valve as described in any one of claims 1-4, characterized in that, The discharge port is rectangular.
7. The powder metering controllable feed gate valve as described in any one of claims 1-4, characterized in that, The valve seat includes: A lower fixing plate is horizontally arranged, and the central part of the lower fixing plate is the partition; a feeding funnel is connected to the bottom of the lower fixing plate. An upper fixing plate is located above the lower fixing plate and is parallel to and spaced apart from the lower fixing plate; a receiving cylinder is connected to the top of the upper fixing plate, and the upper fixing plate has a through hole communicating with the receiving cylinder; The middle rectangular frame is located between the lower fixed plate and the upper fixed plate, and is fixedly connected to the lower fixed plate and the upper fixed plate. The middle rectangular frame, the lower fixed plate and the upper fixed plate enclose a sliding space for the limiting sliding of the insert valve core.
8. The powder metering controllable feed gate valve as described in claim 7, characterized in that, The lower fixing plate, the upper fixing plate, and the middle rectangular frame are connected by bolts.