Cement powder material precision feeding device

Abstract

The application belongs to the technical field of cement production and discloses a powder vibration precise feeding device, which comprises a straight vibrating machine, wherein an installation plate is arranged on the straight vibrating machine; a vibrating trough is fixed to the straight vibrating machine through the installation plate; the lower surface of the end of the vibrating trough is provided with a discharge port, a swing plug assembly is hung and connected to the discharge port, and an active gap is formed between the swing plug assembly and the discharge port under the vibration of the straight vibrating machine. The swing plug is connected by a flexible rope, so that high-frequency vibration does not occur due to the influence of equipment vibration, a vibration frequency difference is generated between the swing plug and the high-frequency vibration of the vibrating trough, the swing plug continuously swings under the guidance of the flexible rope due to the influence of gravity, the material is continuously stirred, and the material will not be accumulated in the discharge port to cause discharging disorder.

Description

Technical Field

[0001] The present invention belongs to the technical field of cement production, and in particular relates to a precise feeding device for cement powder materials. Background Art

[0002] The cement mortar strength test is an important test to determine its strength and evaluate whether the quality of cement meets the quality requirements for engineering applications. When making cement mortar, there is a certain ratio of cement, standard sand and water in each pot of mortar. According to the standard requirements of the national standard GB / T17671-2021, the required amount of cement should be 450g±2g. In traditional cement mortar production, materials can be manually added or subtracted for weighing to ensure that the cement quality meets the target requirements. In the automated production of cement mortar and weighing of cement mass, if the mass of material grabbed at one time is too large, the weight of the material needs to be reduced to achieve the target mass, but the mechanical structure to achieve this method is relatively complex. The optimal solution should be continuous feeding, and the feeding action can be stopped when the weighing mass reaches the target value. In order to achieve the above-mentioned action, it is necessary to ensure that the material falls smoothly during normal feeding, and there will be no material bursting out at startup or interruption in the middle of the process, and no residual material falls when stopping, affecting the weighing quality.

[0003] Existing similar devices have the following disadvantages: First, when there is a large amount of material in the feeding trough, the material will burst out at the moment of initial startup, and the material may easily be scattered outside the storage container; second, if a large amount of material accumulates at the discharge port during transportation, the discharge port will be blocked and normal discharge will be impossible; third, after stopping, if there is still material in the vibrating trough, the remaining material may fall, and the accuracy of the quality cannot be guaranteed. Summary of the Invention

[0004] The purpose of the present invention is to provide a precise feeding device for cement powder materials to solve the above-mentioned technical problems.

[0005] In order to solve the above technical problems, the specific technical solution of a cement powder material precision feeding device of the present invention is as follows:

[0006] A powder vibration feeding device includes a straight vibrator, which is equipped with a mounting plate; a vibration trough is fixed to the straight vibrator through the mounting plate; the lower surface of the end of the vibration trough has a discharge port, and a suspended pendulum plug assembly is suspended on the discharge port, and the suspended pendulum plug assembly forms a movable gap with the discharge port under the vibration action of the straight vibrator.

[0007] Furthermore, the tail of the vibration trough is designed to be wide-mouthed and the opening gradually narrows along the feeding direction.

[0008] Furthermore, the mounting plate is designed to be sloped, and the downward direction of the slope is the feeding direction.

[0009] Furthermore, the discharge port at the narrow end of the vibration trough is designed as a circular hole.

[0010] Furthermore, the pendulum plug assembly includes a bracket, a flexible rope and a pendulum plug, the bracket is fixedly connected to the narrow end of the vibration trough, the flexible rope is vertically fixed on the bracket, the pendulum plug is fixedly connected to the end of the flexible rope, and the pendulum plug is coaxial with the circular hole of the discharge port in a naturally falling state, so that the discharge port forms a circular discharge channel, and the pendulum plug is affected by its own weight and continuously swings under the guidance of the flexible rope, continuously stirring the material.

[0011] Furthermore, the swing plug includes a rotating body and a plunger, the rotating body is fixedly connected above the plunger, the rotating body is arranged in a vibration trough above the discharge port, the plunger is closely connected to the discharge port, and the diameter of the rotating body is larger than the diameter of the plunger to prevent the swing plug assembly from falling out of the discharge port.

[0012] Furthermore, the rotating body is designed to be conical with a pointed top and a round bottom.

[0013] Furthermore, the plunger is a cylinder, the axial cross-sectional area of ​​the plunger is 1 / 2 to 2 / 3 of the opening area of ​​the discharge port, and the length of the plunger is 5-10 cm.

[0014] Furthermore, a material receiving container is placed below the discharge port.

[0015] Furthermore, when the device is not started, the discharge port is in a closed state, the plunger and the discharge port are relatively stationary, and a circular outlet is formed between the two. The material is accumulated due to its own interaction force and is stuck in the discharge port and cannot fall; when the device is started, the vibration trough produces high-frequency vibration under the action of the direct vibrator, and the plunger and the discharge port move relative to each other, and the plunger continues to stir the material in the discharge port, and the material falls smoothly and continuously into the receiving container under continuous stirring; after the required material target weight is reached, the device is closed, and at this time the plunger returns to a relatively stationary state with a small gap circular outlet formed with the discharge port, and the material stops falling.

[0016] The cement powder material precision feeding device of the present invention has the following advantages:

[0017] The mounting plate between the direct vibrating machine and the vibrating trough is designed with a slope, with the downhill direction being the feeding direction, which can appropriately add a certain amount of power to the material conveying, making the material conveying faster;

[0018] The wide-mouth design at the tail of the vibrating trough can prevent the material from being spilled to a certain extent, and at the same time, it can store excess material in the trough for future use; the opening gradually narrows along the feeding direction, which can make the material more concentrated at the discharge port and the receiving container does not need to have a large opening design to complete the material receiving;

[0019] The swinging plug is designed as a rotating body with a pointed cone at the top and a cylindrical bottom. This can prevent excessive material from accumulating on the swinging plug, causing blockage and preventing it from moving freely, which affects the normal passage of the material through the discharge port. The lower conical surface of the swinging plug can serve as a discharge guide, directing the material toward the discharge port. The diameter of the cylinder at the bottom is smaller than the diameter of the discharge port, which ensures normal discharge and prevents the swinging plug from hitting the edge of the discharge port and being ejected out of the discharge port during operation.

[0020] The cylindrical part at the lower end of the swing plug forms a circular outlet with the discharge port, which can avoid the situation where the discharge port is suddenly ejected due to the concentrated discharge area. At the same time, due to the viscous nature of cement powder, when the equipment stops, the powder material accumulates near the circular outlet, and the interaction between them will stop the discharge action in time.

[0021] The pendulum plug cooperates with the discharge port, and under the influence of the vibration of the direct vibration machine, the material will continue to fall to complete the discharge action;

[0022] The pendulum plug is connected by a flexible rope, so it will not produce high-frequency vibration due to the influence of equipment vibration, which will produce a frequency difference with the high-frequency vibration of the vibrating trough. At the same time, the pendulum plug is affected by its own weight and swings continuously under the guidance of the flexible rope, continuously stirring the material, so the material will not accumulate in large quantities at the discharge port and cause discharge problems. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic structural diagram of the cement powder material precision feeding device of the present invention;

[0024] Figure 2 This is a schematic diagram of the position structure of the discharge port and the swing plug assembly of the present invention;

[0025] Figure 3 It is a schematic structural diagram of the pendulum plug assembly of the present invention;

[0026] Explanation of the marks in the figure: 1. Direct vibrating machine; 2. Mounting plate; 3. Vibrating material trough; 4. Material receiving container; 5. Suspended pendulum plug assembly; 51. Bracket; 52. Flexible rope; 53. Suspended pendulum plug; 531. Rotating body; 532. Plunger. DETAILED DESCRIPTION

[0027] In order to better understand the purpose, structure and function of the present invention, the following is a further detailed description of a cement powder material precision feeding device of the present invention in conjunction with the accompanying drawings.

[0028] like Figure 1 Figure 2As shown, a precise feeding device for cement powder materials of the present invention includes a direct vibrating machine 1, on which a mounting plate 2 is installed; a vibrating trough 3 is fixed to the direct vibrating machine 1 through the mounting plate 2; the tail of the vibrating trough 3 is designed with a wide mouth and the opening gradually narrows along the feeding direction; the lower surface of the narrow end of the vibrating trough 3 has a discharge port, and a hanging plug assembly 5 is suspended above the discharge port, and a material receiving container 4 can be placed below the discharge port, and a movable gap is formed between the hanging plug assembly 5 and the discharge port under the vibration action of the direct vibrating machine 1.

[0029] The aforementioned mounting plate 2 used as a link is designed to be sloped, and the downward direction of the slope is the feeding direction, which can provide greater power for material transportation and enable the material to reach the discharge port quickly.

[0030] The tail of the aforementioned vibration trough 3 is designed with a wide mouth, so a large amount of material can be stored in the vibration trough for use, and the wide mouth design can prevent the material from leaking during the placement process; the vibration trough 3 gradually closes its opening along the feeding direction, which can make the material more concentrated during discharge and reduce the size design limitations of the receiving container 4 required for large-area discharge.

[0031] The discharge port at the narrow end of the vibrating trough 3 is designed as a circular hole, which can cooperate with the lower end of the swing plug 53. When the device is not started, the lower conical surface of the swing plug assembly 3 and the discharge port form a relatively static fit with a small gap circular ring outlet. The material is accumulated due to its own interaction force and is stuck in the discharge port and cannot fall.

[0032] like Figure 3 As shown, the aforementioned swing plug assembly 5 includes a bracket 51, a flexible rope 52 and a swing plug 53. The bracket 51 is fixedly connected to the narrow end of the vibrating trough 3, the flexible rope 52 is vertically fixed to the bracket 51, and the swing plug 53 is fixedly connected to the end of the flexible rope 52. The swing plug 53 is coaxial with the circular hole of the discharge port in a naturally falling state, so that the discharge port forms a circular discharge channel, which can effectively avoid the situation where the material splashes when the equipment starts after the discharge is concentrated; the swing plug 53 is connected by a flexible rope 6, and will not produce high-frequency vibration due to the influence of equipment vibration, which will produce a frequency difference with the high-frequency vibration of the vibrating trough 3. At the same time, the swing plug 53 is affected by its own weight and continuously swings under the guidance of the flexible rope 6, continuously stirring the material, which can avoid the situation where a large amount of material accumulates at the discharge port and the discharge is not smooth.

[0033] The swing plug 53 includes a rotating body 531 and a plunger 532. The rotating body 531 is fixedly connected above the plunger 532. The rotating body 531 is arranged in the vibrating trough 3 above the discharge port. The diameter of the rotating body 531 is larger than the diameter of the plunger 532 to prevent the swing plug 53 from falling out of the discharge port. The rotating body 531 is designed to be conical with a pointed top and a rounded bottom. The pointed top design can effectively prevent the material from accumulating above the swing plug assembly and blocking it, causing discharge problems. The plunger 532 is connected to the discharge port. Preferably, the plunger 532 is a cylinder. The axial cross-sectional area of ​​the plunger 532 is 1 / 2 to 2 / 3 of the area of ​​the discharge port opening; preferably, the length of the plunger 532 is 5-10 cm. This allows the material to pass through the discharge port normally while the swing plug 53 will not fall out of the discharge port.

[0034] When the device is not activated, the discharge port is closed, and the swinging plug assembly 3 tightly cooperates with the discharge port to prevent material from falling out. When the device is activated, the direct vibrating machine 1 leads the vibrating trough 3 to vibrate at a high frequency, and the swinging plug 53 and the discharge port move relative to each other. The plunger 532 continuously stirs the material in the discharge port, and the material falls smoothly and continuously into the receiving container 4 under continuous stirring. When the target weight of the material is reached, the device is closed, and the plunger 532 returns to a relatively static state with a small gap to form a circular outlet, and the material stops falling.

[0035] During the continuous feeding process, the aforementioned swing plug 53 will make reciprocating motion up and down at the discharge port under the action of vibration, so as to timely and effectively clear the material and avoid the accumulation of material at the discharge port to form a blockage and cause unsmooth discharge.

[0036] It will be understood that the present invention is described by way of some embodiments, and it will be appreciated by those skilled in the art that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are intended to be protected by the present invention.

Claims

1. A cement powder material precision feeding device, comprising a straight vibrating machine (1), wherein a mounting plate (2) is mounted on the straight vibrating machine (1); a vibrating trough (3) is fixed to the straight vibrating machine (1) via the mounting plate (2); a discharge port is provided on the lower surface of the end of the vibrating trough (3), and the device is characterized in that: A suspending plug assembly (5) is suspended and connected to the discharge port, and a movable gap is formed between the suspending plug assembly (5) and the discharge port under the vibration action of the direct vibration machine (1); the suspending plug assembly (5) comprises a bracket (51), a flexible rope (52) and a suspending plug (53), the bracket (51) is fixedly connected to the narrow end of the vibration trough (3), the flexible rope (52) is vertically fixed to the bracket (51), the suspending plug (53) is fixedly connected to the end of the flexible rope (52), and the suspending plug (53) is in a naturally falling state and is in contact with the discharge port. The circular holes are coaxial, so that the discharge port forms a circular discharge channel; the discharge port at the narrow end of the vibration trough (3) is designed as a circular hole, and the suspension plug (53) includes a rotating body (531) and a plunger (532), the rotating body (531) is fixedly connected above the plunger (532), the rotating body (531) is arranged in the vibration trough (3) above the discharge port, the plunger (532) is closely connected to the discharge port, and the diameter of the rotating body (531) is larger than the diameter of the plunger (532), so as to prevent the suspension plug assembly (5) from falling out of the discharge port.

2. The cement powder material precision feeding device according to claim 1, characterized in that: The tail of the vibration trough (3) is designed to have a wide opening, and the opening gradually closes along the feeding direction.

3. The cement powder material precise feeding device according to claim 1, characterized in that: The mounting plate (2) is designed to be sloped, and the downward direction of the slope is the feeding direction.

4. The cement powder material precision feeding device according to claim 1, characterized in that: The rotating body (531) is designed to be conical with a pointed top and a round bottom.

5. The cement powder material precise feeding device according to claim 1, characterized in that: The plunger (532) is a cylinder, and the axial cross-sectional area of ​​the plunger (532) is 1 / 2 to 2 / 3 of the opening area of ​​the discharge port; the length of the plunger (532) is 5-10 cm.

6. The cement powder material precise feeding device according to claim 1, characterized in that: A material receiving container (4) is placed below the discharge port.

7. The cement powder material precise feeding device according to claim 5, characterized in that: When the device is not started, the plunger (532) and the discharge port are relatively stationary, forming a circular ring outlet between the two. The material is accumulated due to its own interaction force and is stuck in the discharge port and cannot fall. When the device is started, the vibration trough (3) generates high-frequency vibration under the action of the direct vibration machine (1), and the plunger (532) and the discharge port move relative to each other. The plunger (532) continuously stirs the material in the discharge port, and the material falls smoothly and continuously into the receiving container (4) under continuous stirring. After the required material target weight is reached, the device is closed, and at this time, the plunger (532) returns to a relatively stationary state with a small gap circular ring outlet formed with the discharge port, and the material stops falling.

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