Vibration blanking hopper and automatic blanking device

Abstract

The vibration blanking hopper comprises a hopper body, a discharging port is formed in the hopper body, a push-pull rod is arranged on the hopper body, a spring is arranged on the push-pull rod in a sleeving mode, a baffle is arranged on the discharging port, the baffle is installed on the push-pull rod, a positioning part is arranged on the push-pull rod, and the positioning part is arranged on the hopper body. The positioning part is connected with the hopper body, the spring is located on the positioning part, and the spring can be compressed or reset by moving the push-pull rod in the axial direction so as to drive the baffle to be communicated with or disconnected from the discharging port. According to the vibration blanking hopper, the size of the discharging port can be adjusted, the blanking speed can be controlled, the discharging port can be conveniently closed in time after the blanking amount meets the requirement, blanking overweight is prevented, the discharging port can be completely blocked, and in the transferring process of the hopper body, materials can be prevented from being spilled out of the discharging port. The utility model further provides an automatic blanking device. The automatic blanking device comprises the vibration blanking hopper and also has the beneficial effects.

Description

Technical Field

[0001] The present application relates to the technical field of automatic sample preparation equipment, and in particular to a vibrating material dropping hopper and an automatic material dropping device. Background Art

[0002] When testing materials such as coal, ore, biomass, and medicines, we usually need to make the samples into powder and weigh a certain mass of powder samples according to different test methods.

[0003] The automatic sample adding and weighing device with vibrating feeding currently used has the outlet end of the guide trough of the vibrator facing the weighing container, and the weighing container is placed on the balance. Its working process is as follows: Pour the sample powder into the inlet end of the guide trough, and rely on the vibrator to drive the guide trough to vibrate, so that the sample powder moves from the inlet end to the outlet end on the guide trough, and finally falls into the weighing container. At the same time, the balance records the weight change of the weighing container. When the weight of the sample powder in the weighing container reaches the specified weight range, the vibrator stops vibrating and the sample addition is completed. However, the outlet end of the guide trough is open, and the sample is easy to spill out from the outlet end, and the opening size of the outlet end cannot be adjusted, and then the falling material speed cannot be adjusted. When the falling material reaches the required quality, the coal flow cannot be cut off in time, which easily leads to overweight.

[0004] Therefore, how to provide a vibrating feeding hopper that can adjust the size of the feeding opening according to needs so as to control the feeding speed and prevent the material from spilling is a technical problem that needs to be solved urgently by those skilled in the art. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a vibrating material dropping hopper and an automatic material dropping device, which can control the material dropping speed by adjusting the size of the material dropping port. It is also convenient to close the material dropping port in time after the material dropping amount reaches the requirement to prevent the material from being overweight. The material dropping port can also be completely isolated. During the transfer of the hopper body, the material can be prevented from spilling out of the material dropping port.

[0006] The technical solution provided by the utility model is as follows:

[0007] A vibrating drop hopper comprises a hopper body, a discharge port is arranged on the hopper body, a push-pull rod is arranged on the hopper body, a spring is sleeved on the push-pull rod, a baffle is arranged on the discharge port, the baffle is mounted on the push-pull rod, a positioning part is provided on the push-pull rod, the positioning part is connected to the hopper body, the spring is located in the positioning part, and the push-pull rod is moved axially to compress or reset the spring to drive the baffle to connect or disconnect the discharge port.

[0008] Furthermore, the discharge port is located at the bottom of one end of the hopper body, the baffle is vertically arranged inside the hopper body to divide the inside of the hopper body into a loading area and an end discharge area, and the lower part of the baffle is located in the discharge port, the spring compression can make the baffle close to the end of the hopper body so that the discharge port is connected with the loading area, and the spring reset can make the baffle away from the end of the hopper body so that the discharge port is separated from the loading area.

[0009] Furthermore, a first guide sleeve and a second guide sleeve are respectively provided at both ends of the hopper body, and both ends of the push-pull rod are inserted into the first guide sleeve and the second guide sleeve.

[0010] Furthermore, the positioning portion includes a positioning sleeve, one end of the positioning sleeve passes through the end of the hopper body and is installed in the first guide sleeve and can move axially relative to the first guide sleeve, a first step is provided at the end of the positioning sleeve away from the first guide sleeve, the spring sleeve is provided on the positioning sleeve and is located between the first step and the hopper body, the baffle is fixed on the end of the positioning sleeve away from the first guide sleeve, and a second step is provided on the push-pull rod, the second step is used to contact the positioning sleeve when the push-pull rod moves close to the first guide sleeve to push the positioning sleeve to compress the spring and drive the baffle to move.

[0011] Furthermore, a connecting portion is provided at one end of the push-pull rod, and the connecting portion is used to connect to a first driving mechanism, and the first driving mechanism is used to drive the push-pull rod to move axially.

[0012] Furthermore, at least one material blocking tooth is arranged at intervals along the axial direction on the push-pull rod, and the material blocking tooth is used to stir the material in the hopper body when the push-pull rod moves along the axial direction.

[0013] Furthermore, the cross section of the hopper body is V-shaped or U-shaped.

[0014] An automatic material dropping device comprises a vibrator and the above-mentioned vibration material dropping hopper, wherein the vibrator is arranged at the lower part of a hopper body of the vibration material dropping hopper and is used to vibrate the hopper body to drop materials.

[0015] Furthermore, the automatic material delivery device also includes a turntable and a second driving mechanism connected to the turntable, the turntable is located on the lower side of the hopper body, the turntable is circumferentially provided with at least two material receiving positions, the material receiving positions are used to place material containers, and the second driving mechanism is used to drive the turntable to rotate so that the material container is located directly below the discharge port of the hopper body.

[0016] Furthermore, the automatic material dropping device also includes a lifting mechanism and a weighing mechanism, the lifting mechanism is arranged at the lower part of the turntable, the weighing mechanism is arranged directly below the discharge port, a clamping ring is arranged on the material receiving position, the material container is placed in the clamping ring, the material container is in a shape of being larger at the top and smaller at the bottom, the lifting mechanism is used to drive the turntable to descend so that the material container is placed on the weighing mechanism and the clamping ring is separated from the side wall of the material container, and after the weighing is completed, the turntable is driven to rise so that the material container is separated from the weighing mechanism.

[0017] The vibrating material dropping hopper and automatic material dropping device provided by the utility model move the push-pull rod axially to compress the spring so that the baffle moves relative to the material discharge port. The size of the material discharge port can be controlled by controlling the moving distance of the push-pull rod, thereby controlling the material dropping speed. After the material dropping is completed, the spring is reset, so that the baffle completely blocks the material discharge port to prevent the material from spilling out of the material discharge port. Since the size of the material discharge port is adjustable, it is also convenient to close the material discharge port in time after the material dropping amount reaches the requirement to prevent the material from being overweight. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 This is a schematic diagram of the structure of the vibrating drop hopper in the embodiment of the utility model;

[0020] Figure 2 It is an axial cross-sectional view of the vibrating drop hopper in the embodiment of the utility model;

[0021] Figure 3 It is a schematic structural diagram of the automatic blanking device in the embodiment of the utility model.

[0022] Figure numerals: hopper body 1, discharge port 2, push-pull rod 3, spring 4, baffle 5, first guide sleeve 6, second guide sleeve 7, positioning sleeve 8, first step 9, second step 10, connecting part 11, material blocking teeth 12, vibrator 13, turntable 14, material receiving position 15, first driving mechanism 16, second driving mechanism 17, lifting mechanism 18, weighing mechanism 19, material container 20. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below. Obviously, the described embodiments are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0024] It should be noted that when an element is referred to as being "fixed on" or "set on" another element, it can be directly on the other element or indirectly set on the other element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0025] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0026] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "multiple" and "several" mean two or more, unless otherwise clearly and specifically defined.

[0027] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which this application can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in this application without affecting the effects and purposes that can be achieved by this application.

[0028] “Axial direction” in the present application refers to the length direction of the push-pull rod 3 , or the extension direction of the push-pull rod 3 ; “axial direction of the hopper body 1 ” refers to the length direction of the hopper body 1 , that is, along the length direction of the push-pull rod 3 .

[0029] like Figure 1 and Figure 2As shown, a vibrating drop hopper provided in this embodiment includes a hopper body 1, a discharge port 2 is arranged on the hopper body 1, a push-pull rod 3 is arranged on the hopper body 1, a spring 4 is sleeved on the push-pull rod 3, a baffle 5 is arranged on the discharge port 2, the baffle 5 is installed on the push-pull rod 3, a positioning part is provided on the push-pull rod 3, the positioning part is connected to the hopper body 1, the spring 4 is located in the positioning part, and the push-pull rod 3 is moved axially to compress or reset the spring 4 to drive the baffle 5 to connect or disconnect the discharge port 2.

[0030] The vibrating drop hopper provided in this embodiment has a hopper body 1 with a certain length, a push-pull rod 3 is arranged at both ends of the hopper body 1 along the length direction of the hopper body 1, a discharge port 2 is arranged at the bottom of the hopper body 1, and a spring 4 is limited in a positioning portion. By pushing or pulling the push-pull rod 3 by an external force, the push-pull rod 3 moves axially and compresses the spring 4, and the push-pull rod 3 drives the baffle 5 to move relative to the discharge port 2. By controlling the moving distance of the push-pull rod 3, the size of the discharge port 2 can be controlled. The hopper body 1 causes the material to fall from the discharge port 2 by vibration, thereby controlling the drop. The speed of the material is controlled, and after the material is dropped, the push-pull rod 3 is moved in the opposite direction, and the spring 4 is reset, so that the baffle 5 completely blocks the discharge port 2, and due to the elastic force of the spring 4, the baffle 5 is not easy to be moved under the condition of no external force, and the baffle 5 always keeps the state of blocking the discharge port 2, which can prevent the material from spilling out of the discharge port 2. Since the size of the discharge port 2 is adjustable, when the discharge quality is close to the required quality, the discharge port 2 is reduced, so that the discharge port 2 is closed in time after the drop amount reaches the requirement, to prevent the drop material from continuing to fall from the discharge port 2 and causing the material to be overweight.

[0031] In this embodiment, the discharge port 2 is preferably located at the bottom of one end of the hopper body 1, the baffle 5 is vertically arranged inside the hopper body 1 to divide the inside of the hopper body 1 into a charging area and an end discharge area, and the lower part of the baffle 5 is located in the discharge port 2, the compression of the spring 4 can make the baffle 5 close to the end of the hopper body 1 so that the discharge port 2 is connected with the charging area, and the reset of the spring 4 can make the baffle 5 away from the end of the hopper body 1 so that the discharge port 2 is separated from the charging area. The discharge port 2 is set at one end of the hopper body 1, the baffle 5 is perpendicular to the axial direction of the hopper body 1, and the baffle 5 has a suitable width, which can divide the inside of the hopper body 1 into a charging area and an end discharge area along the axial direction. The push-pull rod 3 is moved axially to compress the spring 4 and bring the baffle 5 closer to the discharging end of the hopper body 1, so that the loading area is connected with the discharging port 2. The hopper body 1 vibrates, and the material moves from the loading area of ​​the hopper body 1 to the end discharging area and falls from the discharging port 2. After the discharge amount reaches the requirement, the push-pull rod 3 is moved in the opposite direction, the spring 4 is reset, and the baffle 5 is close to the loading area, so that the discharging port 2 is separated from the loading area.

[0032] In order to facilitate the installation of the push-pull rod 3 on the hopper body 1, in this embodiment, the two ends of the hopper body 1 are respectively provided with a first guide sleeve 6 and a second guide sleeve 7, and the two ends of the push-pull rod 3 are inserted into the first guide sleeve 6 and the second guide sleeve 7. The first guide sleeve 6 is provided on the outside of one end of the hopper body 1, and the second guide sleeve 7 is provided on the outside of the other end. The push-pull rod 3 is inserted into the hopper body 1, and the two ends are respectively located in the first guide sleeve 6 and the second guide sleeve 7. The push-pull rod 3 can move relative to the first guide sleeve 6 and the second guide sleeve 7 along the axial direction.

[0033] Preferably, in this embodiment, the positioning portion includes a positioning sleeve 8, one end of the positioning sleeve 8 passes through the end of the hopper body 1 and is installed in the first guide sleeve 6 and can move axially relative to the first guide sleeve 6, a first step 9 is provided at the end of the positioning sleeve 8 away from the first guide sleeve 6, the spring 4 is sleeved on the positioning sleeve 8 and is located between the first step 9 and the hopper body 1, the baffle 5 is fixed on the end of the positioning sleeve 8 away from the first guide sleeve 6, and a second step 10 is provided on the push-pull rod 3, the second step 10 is used to contact the positioning sleeve 8 when the push-pull rod 3 moves close to the first guide sleeve 6, and push the positioning sleeve 8 to compress the spring 4 and drive the baffle 5 to move.

[0034] In this embodiment, the positioning sleeve 8, the first step 9 and the baffle 5 are integrally formed, and the baffle 5 and the first step 9 are integrally arranged. Of course, the positioning sleeve 8, the first step 9 and the baffle 5 can also be separately arranged. The push-pull rod 3 and the second step 10 are integrally formed, one end of the push-pull rod 3 is located in the positioning sleeve 8, the second step 10 is located outside the positioning sleeve 8, one end of the positioning sleeve 8 passes through the end of the hopper body 1 and is located in the first guide sleeve 6, and the spring 4 is sleeved on the positioning sleeve 8 and is located between the first step 9 and the material head body. When discharging, the push-pull rod 3 is moved toward one end of the first guide sleeve 6, and the second step 10 of the push-pull rod 3 contacts the end of the positioning sleeve 8 and pushes the positioning sleeve 8 to approach the first guide sleeve 6. At the same time, the first step 9 on the positioning sleeve 8 squeezes the spring 4 to compress the spring 4, and the baffle 5 fixed with the positioning sleeve 8 moves toward the first guide sleeve 6 at the same time, so that the discharge port 2 is connected with the loading area.

[0035] In order to move the push-pull rod 3 axially to realize automatic discharging, in this embodiment, a connecting portion 11 is provided at one end of the push-pull rod 3, and the connecting portion 11 is used to connect the first driving mechanism 16, and the first driving mechanism 16 is used to drive the push-pull rod 3 to move axially. Specifically, the first driving mechanism 16 can be a cylinder, an electric cylinder or other driving mechanism that can perform linear telescopic expansion and contraction. The connecting portion 11 of the push-pull rod 3 can be fixedly connected to the first driving mechanism 16, and the connecting portion 11 can also be connected to the first driving mechanism 16 by a quick connection method for disassembly and installation. The first driving mechanism 16 can be set at either end of the push-pull rod 3. In this embodiment, the first driving mechanism 16 is set at the end of the push-pull rod 3 away from the discharge port 2. The first driving mechanism 16 extends to push the push-pull rod 3 to compress the spring 4 to connect the discharge port 2, and the first driving mechanism 16 retracts to pull the push-pull rod 3 to reset the spring 4 to separate the discharge port 2.

[0036] In the present embodiment, at least one material-blocking tooth 12 is preferably arranged at intervals along the axial direction on the push-pull rod 3, and the material-blocking tooth 12 is used to stir the material in the hopper body 1 when the push-pull rod 3 moves along the axial direction. The number of material-blocking teeth 12 can be determined according to the size of the hopper body and the size of the loading amount. Specifically, three material-blocking teeth 12 are fixedly arranged at intervals along the axial direction on the push-pull rod 3, and there is a gap between the material-blocking teeth 12 and the side of the hopper body 1 for the material to pass through. When the push-pull rod 3 moves back and forth along the axial direction, it drives the material-blocking teeth 12 to move along the axial direction. The material-blocking teeth 12 can stir the material in the hopper body 1, break up the material, and prevent the material from falling in blocks, which helps to reduce the amount of material entering the discharge port 2 and facilitates the precise control of the discharge amount; at the same time, the material can be mixed, which can effectively avoid the segregation of the material. Preferably, there is a certain distance between the second step 10 and the positioning sleeve 8. The push-pull rod 3 is moved axially back and forth. When the second step 10 does not squeeze and push the positioning sleeve 8, the baffle 5 will not open the discharge port 2. The movement of the push-pull rod 3 drives the material blocking teeth 12 to move, which can stir and break up the material and make the material mixed evenly.

[0037] More preferably, the cross section of the hopper body 1 is V-shaped or U-shaped. The interior of the hopper body 1 is wide at the top and narrow at the bottom, and the cross section of the hopper body 1 is V-shaped or U-shaped, which facilitates the material to gather at the bottom of the hopper body 1 and then move the material to the discharge port 2.

[0038] like Figure 3 As shown, this embodiment also provides an automatic material dropping device, including a vibrator 13 and the above-mentioned vibration material dropping hopper, wherein the vibrator 13 is arranged at the lower part of the hopper body 1 of the vibration material dropping hopper to vibrate the hopper body 1 to drop materials.

[0039] Specifically, the hopper body 1 can be fixedly connected to the vibrator 13, or can be connected to the vibrator 13 by a quick connection. The vibrator 13 drives the hopper body 1 to vibrate, so that the material in the hopper body 1 moves to the discharge hopper for dropping. After the amount of dropped material reaches the requirement, the vibration is stopped and the discharge port 2 is disconnected. The automatic dropping device includes the above-mentioned vibrating dropping hopper, which also has the beneficial effects of the above-mentioned dropping hopper. The size of the discharge port 2 and the speed of dropping can be controlled. After the dropping is completed, the baffle 5 always keeps the state of isolating the discharge port 2, which can prevent the material from spilling out of the discharge port 2, and is convenient for timely closing the discharge port 2 after the amount of dropped material reaches the requirement, so as to prevent the dropped material from continuing to fall from the discharge port 2 and causing the material to be overweight.

[0040] Preferably, the automatic material dropping device further comprises a turntable 14 and a second driving mechanism 17 connected to the turntable 14, the turntable 14 is located at the lower side of the hopper body 1, the turntable 14 is provided with at least two material receiving positions 15 along the circumference, the material receiving positions 15 are used to place material containers 20, and the second driving mechanism 17 is used to drive the turntable 14 to rotate so that the material container 20 is located directly below the material outlet 2 of the hopper body 1. The material container 20 is specifically a crucible, and the second driving mechanism 17 is preferably a driving motor, which is transmission-connected to the central axis of the turntable 14 and is used to drive the central axis to rotate, thereby driving the turntable 14 to rotate as a whole, so that the material containers 20 on the material receiving positions 15 of the turntable 14 are rotated to the directly below the material outlet 2 in sequence to receive the material.

[0041] More preferably, the automatic blanking device also includes a lifting mechanism 18 and a weighing mechanism 19, the lifting mechanism 18 is arranged at the lower part of the turntable 14, the weighing mechanism 19 is arranged directly below the discharge port 2, a clamping ring is arranged on the material receiving position 15, the material container 20 is placed in the clamping ring, the material container 20 is in a shape of larger top and smaller bottom, the lifting mechanism 19 is used to drive the turntable 14 to descend so that the material container 20 is placed on the weighing mechanism 19 and the clamping ring is separated from the side wall of the material container 20, and after the weighing is completed, the turntable 14 is driven to rise to separate the material container 20 from the weighing mechanism 19. The material container 20 is in the shape of a cup or an inverted cone with a larger upper part and a smaller lower part. The bottom of the material container 20 is flat so that the material container 20 can be placed on the weighing mechanism 19. The material container 20 is placed in the clamping ring of the material receiving position 15. The clamping ring clamps the side wall of the material container 20 to stably support the material container 20. The material container 20 will not fall during the rotation of the turntable 14. In order to make the clamping ring more stably support the material container 20, an annular protrusion is provided on the outer side of the material container 20. The material container 20 is placed in the clamping ring and the clamping ring abuts on the annular protrusion. The lifting mechanism 18 can drive the turntable 14 to rise or fall as a whole. The weighing mechanism 19 is used to weigh the weight of the material container 20 in real time during the material receiving process of the material container 20, so as to obtain the weight information of the material in the material container 20 in real time. The lifting mechanism 18 and the weighing mechanism 19 can adopt the existing technology, which will not be repeated here.

[0042] The working process of the automatic material discharge device is as follows: the baffle 5 of the vibrating material discharge hopper is in an initial closed state; the second driving mechanism 17 drives the turntable 14 to rotate, driving the crucible of the material container 20 to rotate to just below the discharge port 2; the lifting mechanism 18 drives the turntable 14 to descend, so that the bottom of the material container 20 is placed on the weighing mechanism 19, and the weighing mechanism 19 weighs the empty material container 20. Since the material container 20 is larger at the top and smaller at the bottom, at this time, although the clamping ring is still sleeved on the outer side of the material container 20, it is detached from the side wall of the material container 20, and the clamping ring will not affect the weighing of the material container 20 by the weighing mechanism 19; the push-pull rod 3 is moved axially back and forth, so that the material blocking teeth 12 on the push-pull rod 3 stir and break up the material, so that the material is evenly mixed; the push-pull rod 3 is further moved axially to cause the baffle 5 to open the discharge port 2, and Start the vibrator 13, the material moves toward the discharge port 2 under vibration and falls into the material container 20 below, and the weighing mechanism 19 weighs the material container 20 and the material therein in real time; when the material dropping speed is too fast or the material needs to be stirred again, adjust the first drive mechanism 16 to control the moving distance of the push-pull rod 3 so that the baffle 5 is in a suitable position, or close the discharge port 2, move the push-pull rod 3 back and forth to make the material blocking teeth 12 stir the material, and then perform the material dropping operation again; when the material dropping quality meets the requirements, turn off the vibrator 13, reset the second drive mechanism 17 and the baffle 5, close the discharge port 2 to end the material dropping; the lifting mechanism 18 drives the turntable 14 to rise to the rotating position, and the second drive mechanism 17 drives the turntable 14 to rotate so that the next material container 20 is directly below the discharge port 2, and the next material dropping weighing operation is performed.

[0043] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A vibrating hopper, characterized in that: It includes a hopper body, which is provided with a discharge port, a push-pull rod is provided on the hopper body, a spring is sleeved on the push-pull rod, a baffle is provided on the discharge port, the baffle is installed on the push-pull rod, a positioning part is provided on the push-pull rod, the positioning part is connected to the hopper body, the spring is located in the positioning part, and the push-pull rod is moved axially to compress or reset the spring to drive the baffle to connect or disconnect the discharge port.

2. The vibrating feeding hopper according to claim 1, characterized in that: The discharge port is located at the bottom of one end of the hopper body, the baffle is vertically arranged inside the hopper body to divide the inside of the hopper body into a loading area and an end discharge area, and the lower part of the baffle is located in the discharge port, the spring compression can make the baffle close to the end of the hopper body so that the discharge port is connected with the charging area, and the spring reset can make the baffle away from the end of the hopper body so that the discharge port is separated from the charging area.

3. The vibrating hopper according to claim 2, characterized in that: The two ends of the hopper body are respectively provided with a first guide sleeve and a second guide sleeve, and the two ends of the push-pull rod are inserted into the first guide sleeve and the second guide sleeve.

4. The vibrating feeding hopper according to claim 3, characterized in that: The positioning portion includes a positioning sleeve, one end of the positioning sleeve passes through the end of the hopper body and is installed in the first guide sleeve and can move axially relative to the first guide sleeve, a first step is provided at the end of the positioning sleeve away from the first guide sleeve, the spring sleeve is provided on the positioning sleeve and is located between the first step and the hopper body, the baffle is fixed on the end of the positioning sleeve away from the first guide sleeve, the push-pull rod is provided with a second step, the second step is used to contact the positioning sleeve when the push-pull rod moves close to the first guide sleeve, push the positioning sleeve to compress the spring and drive the baffle to move.

5. The vibrating feeding hopper according to any one of claims 1 to 4, characterized in that: A connecting portion is provided at one end of the push-pull rod, and the connecting portion is used to connect to a first driving mechanism, and the first driving mechanism is used to drive the push-pull rod to move axially.

6. The vibrating feeding hopper according to claim 5, characterized in that: At least one material blocking tooth is arranged at intervals along the axial direction on the push-pull rod, and the material blocking tooth is used to stir the material in the hopper body when the push-pull rod moves along the axial direction.

7. The vibrating feeding hopper according to any one of claims 1 to 4, characterized in that: The cross section of the hopper body is V-shaped or U-shaped.

8. An automatic blanking device, characterized in that: It comprises a vibrator and the vibration dropping hopper according to any one of claims 1 to 7, wherein the vibrator is arranged at the lower part of the hopper body of the vibration dropping hopper to vibrate the hopper body to drop materials.

9. The automatic blanking device according to claim 8, characterized in that: It also includes a turntable and a second driving mechanism connected to the turntable, the turntable is located on the lower side of the hopper body, the turntable is circumferentially provided with at least two material receiving positions, the material receiving positions are used to place material containers, and the second driving mechanism is used to drive the turntable to rotate so that the material container is located directly below the discharge port of the hopper body.

10. The automatic blanking device according to claim 9, characterized in that: It also includes a lifting mechanism and a weighing mechanism, wherein the lifting mechanism is arranged at the lower part of the turntable, and the weighing mechanism is arranged directly below the discharge port. A clamping ring is arranged on the material receiving position, and the material container is placed in the clamping ring. The material container is in a shape of being larger at the top and smaller at the bottom. The lifting mechanism is used to drive the turntable to descend so that the material container is placed on the weighing mechanism and the clamping ring is separated from the side wall of the material container, and after weighing is completed, the turntable is driven to rise so that the material container is separated from the weighing mechanism.

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