Automatic powder metering device

Abstract

This utility model discloses an automatic powder metering device, relating to the field of powder metering equipment technology. It aims to solve the problem that after prolonged use, the friction between the baffle and the guide hole of the support frame may gradually increase, leading to inaccurate metering. The device includes a base plate and a support frame, with two sets of support frames. The base plate is located between the two sets of support frames, and a metering mechanism is mounted on the base plate. A feed hopper is connected to the base plate via the support frame. A baffle for controlling the output of the feed hopper is also mounted on the support frame. The metering mechanism is connected to the baffle via a linkage mechanism. A guide hole adapted to the position and size of the baffle is provided on the support frame. An electric push rod receives an electrical signal and automatically pushes the baffle, quickly closing the feed hopper outlet. After metering, the electric push rod automatically resets, preventing direct contact between the metering component and the baffle, thus avoiding inaccurate metering caused by increased friction between the baffle and the support frame after prolonged use.

Description

Technical Field

[0001] This utility model relates to the field of powder metering equipment technology, and in particular to an automatic powder metering device. Background Technology

[0002] There are many types of powder material metering equipment on the market. Chinese patent CN202420986335.4 discloses an automatic powder metering device. This device uses a weighing component to rotate in a balanced manner by gravity difference, thereby realizing automatic powder metering. This device improves the automation level of powder metering to a certain extent. However, in actual use, after the device has been used for a long time, the friction between the baffle and the support frame may gradually increase, leading to inaccurate metering.

[0003] Therefore, this application provides an automatic powder metering device to meet the requirements. Utility Model Content

[0004] The purpose of this application is to provide an automatic powder metering device, which aims to solve the problem that after the equipment has been used for a long time, the friction between the baffle and the support frame may gradually increase, leading to inaccurate metering.

[0005] To achieve the above objectives, this application provides the following technical solution: an automatic powder metering device, comprising a base plate and a support frame, wherein two sets of support frames are provided, and the base plate is located between the two sets of support frames. A metering mechanism is provided on the base plate, and a feed hopper is connected to the base plate through the support frame. The metering mechanism further includes a placement seat, a weighing box, and a counterweight. Two sets of placement seats are provided, and the weighing box and the counterweight are respectively placed in the two placement seats. The weighing box is located below the feed hopper. A baffle for controlling the output of the feed hopper is also provided on the support frame. The metering mechanism is connected to the baffle through a linkage mechanism. A guide hole adapted to the position and size of the baffle is provided on the support frame, and the baffle slides in the guide hole. The linkage mechanism further includes an on / off component and a sliding component. The on / off component is connected to the baffle, and the sliding component is connected to the metering mechanism. The metering mechanism and the baffle are connected through the linkage mechanism, thereby improving the accuracy of metering.

[0006] Preferably, the sliding assembly further includes a fixed block and a sliding bracket. The fixed block is connected to the support frame, and the fixed block has a sliding hole for the sliding bracket to slide up and down. The sliding bracket is a rectangular frame, and a second adjusting screw is threaded onto the sliding bracket, so that the device can be adjusted more conveniently and quickly.

[0007] Preferably, the switching assembly further includes a first connecting plate and a second connecting plate, which are connected to the support frame. A first adjusting screw is threaded onto the first connecting plate, and an electric push rod is connected to one end of the second connecting plate. The electric push rod corresponds to the position of the baffle. An arc-shaped conductive sheet is connected to the other end of the second connecting plate. The position of the arc-shaped conductive sheet is adapted to the position of the first adjusting screw. The baffle is controlled by the electric push rod, resulting in fast response and high control accuracy.

[0008] Preferably, the first adjusting screw and the second adjusting screw are located on the same axis, the arc-shaped conductive sheet is located between the first adjusting screw and the second adjusting screw, the sliding bracket and the first connecting plate are both provided with threaded holes, and the first adjusting screw and the second adjusting screw are both connected with adjusting nuts, making the adjustment of the adjusting screw more convenient.

[0009] Preferably, a connecting rod is connected to the placement base, and a through hole is provided on the support frame for the movement of the connecting rod, with the position of the connecting rod corresponding to that of the sliding bracket.

[0010] Preferably, a guide rod is connected to the baffle, the guide rod passes through two sets of support frames and is connected to a lever, and a guide groove is provided on the baffle. The width of the guide groove is adapted to the width of the support frame, which facilitates the manual reset operation of the baffle and improves the stability of the baffle movement.

[0011] In summary, the technical effects and advantages of this utility model are as follows:

[0012] In this invention, an electric push rod receives an electrical signal and automatically pushes the baffle to quickly close the outlet of the feed hopper. After metering is completed, the electric push rod can automatically reset, so that the metering component and the baffle no longer directly contact and interact, thus avoiding the problem of inaccurate metering caused by the increase of friction between the baffle and the support due to long-term use.

[0013] In this invention, an auxiliary manual reset mechanism is formed by a set paddle and a guide rod, which makes the baffle reset operation easier and faster, and improves the efficiency of powder metering. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2This is a schematic diagram of the metering mechanism structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the linkage mechanism structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the baffle structure of this utility model.

[0019] In the diagram: 1. Base plate; 2. Support frame; 3. Feed hopper; 4. Measuring mechanism; 5. Linkage mechanism; 6. Baffle; 44. Placement seat; 45. Weighing box; 46. Counterweight; 51. Connecting rod; 52. Fixing block; 53. Sliding bracket; 54. First connecting plate; 55. First adjusting screw; 56. Second adjusting screw; 57. Arc-shaped conductive sheet; 58. Second connecting plate; 59. Electric push rod; 61. Guide groove; 62. Guide rod; 63. Pulley. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0021] refer to Figure 1-4 An automatic powder metering device is shown, comprising a base plate 1 and a support frame 2. The support frame 2 is provided in two sets and is located on both sides of the base plate 1. A metering mechanism 4 is provided on the base plate 1. A feed hopper 3 is connected to the support frame 2. A baffle 6 is provided between the feed hopper 3 and the metering mechanism 4. The baffle 6 slides on the support frame 2. A guide hole adapted to the baffle 6 is opened on the support frame 2. The baffle 6 is connected to a lever 63 through a guide rod 62. The baffle 6 slides in the guide hole on one set of support frames 2. The guide rod 62 slides in the other set of support frames 2, and the lever 63 is located on the outside of the support frame 2. Placement seats 44 are provided on both sides of the metering mechanism 4. One set of placement seats 44 contains a weighing box 45, and the other set of placement seats 44 contains a counterweight 46. The weighing box 45 is located on the same side as the feed hopper 3. The placement seat 44 on the other side is connected to the baffle 6 through a linkage mechanism 5.

[0022] As one embodiment of this invention, to avoid the baffle 6 affecting the metering effect of the metering mechanism 4, the linkage mechanism 5 further includes a sliding component and a switching component. The switching component includes a first connecting plate 54 and a second connecting plate 58. The first connecting plate 54 and the second connecting plate 58 are connected to the support frame 2. A first adjusting screw 55 is threaded onto the first connecting plate 54. A wire in the first connecting plate 54 is connected to the first adjusting screw 55. One end of the second connecting plate 58 is connected to an electric push rod 59, which corresponds to the position of the baffle 6. The other end of the second connecting plate 58 is connected to an arc-shaped conductive sheet 57. Both the first connecting plate 54 and the second connecting plate 58 are provided with wires. One end of the wire in the second connecting plate 58 is connected to the electric push rod 59, and the other end is connected to the arc-shaped conductive sheet 57. The position of the arc-shaped conductive sheet 57 corresponds to the position of the first adjusting screw 55. Correspondingly, the sliding assembly also includes a fixed block 52 and a sliding bracket 53. The fixed block 52 is connected to the support frame 2. The fixed block 52 has a sliding hole for the sliding bracket 53 to slide up and down. The sliding bracket 53 is a rectangular frame. The second adjusting screw 56 is threadedly connected to the sliding bracket 53. The placement seat 44 is connected to a connecting rod 51. The support frame 2 has a through hole for the connecting rod 51 to move. The position of the connecting rod 51 corresponds to that of the sliding bracket 53. When the counterweight 46 rises due to the increase of material in the weighing box 45 on the other side of the metering mechanism 4, the placement seat 44 on the same side of the counterweight 46 lifts the sliding bracket 53 upward through the connecting rod 51, which drives the second adjusting screw 56 to lift the arc-shaped conductive sheet 57 to the first adjusting screw 55, so that the wires in the first connecting plate 54 and the second connecting plate 58 are electrically connected, so that the electric push rod 59 pushes the baffle 6 to close the outlet of the feed hopper 3.

[0023] In one embodiment of this invention, to facilitate easy adjustment of the range of the device, the first adjusting screw 55 and the second adjusting screw 56 are located on the same axis, and the arc-shaped conductive plate 57 is located between the first adjusting screw 55 and the second adjusting screw 56. Both the sliding bracket 53 and the first connecting plate 54 are provided with threaded holes, and adjusting nuts are connected to both the first adjusting screw 55 and the second adjusting screw 56. By rotating the second adjusting screw 56, the distance between the sliding bracket 53 and the fixed block 52 is adjusted, thereby controlling the required stroke for the adjusting connecting rod 51 to contact the sliding bracket 53. By rotating the first adjusting screw 55, the distance between the first adjusting screw 55 and the arc-shaped conductive plate 57 is adjusted, thereby controlling the required stroke for the arc-shaped conductive plate 57 to contact the first adjusting screw 55.

[0024] As one implementation method in this embodiment, in order to more conveniently and quickly reset the device after the weighing box 45 is replaced after the measurement is completed, a guide rod 62 is connected to the baffle 6. The guide rod 62 passes through two sets of support frames 2 and is connected to a lever 63. A guide groove 61 is provided on the baffle 6. The width of the guide groove 61 is adapted to the width of the support frame 2, so as to achieve quick reset and improve the stability of the baffle 6 when it moves.

[0025] The working principle of this utility model is as follows: First, connect the wire to the first adjusting screw 55. Then, place the weighing box 45 and the counterweight 46 in their corresponding seats 44. Next, adjust the first adjusting screw 55 and the second adjusting screw 56 according to the required measurement. After adjustment, lock them using their corresponding adjusting nuts. Then, powdery materials such as laundry detergent can be added to the feed hopper 3. The material falls into the weighing box 45 through the outlet of the feed hopper 3. As the material in the weighing box 45 increases, under the action of the measuring mechanism 4, the counterweight 46 and its corresponding seat 44 gradually rise, driving the connecting rod 51 to move in the through hole. As the counterweight 46 gradually rises, the connecting rod 51 moves upward under the action of the seat 44 until it contacts the sliding bracket 53. The connecting rod 51 then lifts the sliding bracket 53 upward. The second adjusting screw 56 is driven to lift the arc-shaped conductive plate 57 upwards until it contacts the first adjusting screw 55. After contact, the wires in the first connecting plate 54 and the second connecting plate 58 are connected, so that the electric push rod 59 receives an output signal. The electric push rod 59 pushes the baffle 6, so that the baffle 6 and the guide rod 62 slide in the guide hole on the support frame 2 to the outlet of the feed hopper 3, thus sealing the outlet of the feed hopper 3. After that, the operator can replace the weighing box 45. After the replacement is completed, the metering mechanism 4 automatically resets under the action of gravity, and the electric push rod 59 retracts synchronously. Then, the operator manually pushes the lever 63, which drives the baffle 6 to move through the guide rod 62, so that the position of the baffle 6 is reset. After the reset, the material in the feed hopper 3 can continue to be output to the weighing box 45 for the next measurement.

[0026] The electromechanical connections involved in this utility model are common practices used by those skilled in the art, and technical inspiration can be obtained through a limited number of experiments; they are common knowledge.

[0027] Components not described in detail in this article are existing technologies.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., 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. An automatic powder metering device, comprising a base plate (1) and a support frame (2), wherein the support frame (2) is provided in two sets, the base plate (1) is located between the two sets of the support frames (2), a metering mechanism (4) is provided on the base plate (1), and a feed hopper (3) is connected to the base plate (1) through the support frame (2). The metering mechanism (4) further comprises a placement seat (44), a weighing box (45), and a counterweight (46). The placement seat (44) is provided in two sets, the weighing box (45) and the counterweight (46) are respectively placed in the two placement seats (44), and the weighing box (45) is located below the feed hopper (3), characterized in that: The support frame (2) is also provided with a baffle (6) for controlling the output of the feed hopper (3). The metering mechanism (4) is connected to the baffle (6) through a linkage mechanism (5). The support frame (2) is provided with a guide hole that matches the position and size of the baffle (6). The baffle (6) slides in the guide hole. The linkage mechanism (5) further includes an on / off component and a sliding component. The on / off component is connected to the baffle (6), and the sliding component is connected to the metering mechanism (4).

2. The automatic powder metering device according to claim 1, characterized in that: The sliding assembly further includes a fixed block (52) and a sliding bracket (53). The fixed block (52) is connected to the support frame (2). The fixed block (52) has a sliding hole for the sliding bracket (53) to slide up and down. The sliding bracket (53) is a rectangular frame. A second adjusting screw (56) is threaded onto the sliding bracket (53).

3. The automatic powder metering device according to claim 2, characterized in that: The switching assembly further includes a first connecting plate (54) and a second connecting plate (58). The first connecting plate (54) and the second connecting plate (58) are connected to the support frame (2). A first adjusting screw (55) is threaded onto the first connecting plate (54). One end of the second connecting plate (58) is connected to an electric push rod (59). The electric push rod (59) corresponds to the position of the baffle (6). The other end of the second connecting plate (58) is connected to an arc-shaped conductive sheet (57). The position of the arc-shaped conductive sheet (57) is adapted to the position of the first adjusting screw (55).

4. The automatic powder metering device according to claim 3, characterized in that: The first adjusting screw (55) and the second adjusting screw (56) are located on the same axis. The arc-shaped conductive sheet (57) is located between the first adjusting screw (55) and the second adjusting screw (56). The sliding bracket (53) and the first connecting plate (54) are both provided with threaded holes. The first adjusting screw (55) and the second adjusting screw (56) are both connected with adjusting nuts.

5. The automatic powder metering device according to claim 3, characterized in that: A connecting rod (51) is connected to the placement seat (44), and a through hole is provided on the support frame (2) for the moving of the connecting rod (51). The position of the connecting rod (51) corresponds to that of the sliding bracket (53).

6. The automatic powder metering device according to claim 1, characterized in that: A guide rod (62) is connected to the baffle (6). The guide rod (62) passes through two sets of support frames (2) and is connected to a lever (63). A guide groove (61) is provided on the baffle (6). The width of the guide groove (61) is adapted to the width of the support frame (2).

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