Quantitative metal powder feeding device

Abstract

The utility model discloses a metal powder quantitative feeding device which comprises a feeding mechanism and a discharging mechanism, the feeding mechanism comprises a fixing frame, a feeding hopper and a feeding screw rod, the feeding hopper is fixed on the fixing frame, one end of the feeding screw rod fixed on the fixing frame is connected with the bottom of the feeding hopper, and the other end of the feeding screw rod is connected with the discharging mechanism. The other end of the discharging mechanism is connected with a first driving component to drive the discharging mechanism to rotate and is provided with a discharging port, and the discharging mechanism is arranged at the discharging port and comprises a first discharging hopper and a second discharging hopper; matched material guide plates are rotationally arranged in the first discharging hopper and the second discharging hopper and are driven to rotate through a second driving part and a third driving part which are arranged on the material guide plates respectively, the lower portion of the first discharging hopper is connected with a fixing base through a sliding rod, and a weighing module is arranged on the fixing base; the second discharging hopper is arranged on a sliding rod arranged between the first discharging hopper and the fixing base in a sliding mode and arranged above the weighing module of the fixing base.

Description

Technical Field

[0001] The utility model relates to the technical field of powder metallurgy, in particular to a quantitative metal powder feeding device. Background Art

[0002] Powder metallurgy is a process that produces metal powder or uses metal powder (or a mixture of metal powder and non-metallic powder) as raw material, and then forms and sinters it to manufacture metal materials, composite materials, and various types of products. It plays a vital role in the development of new materials. At present, most of the traditional screw feeders on the market are used for conveying, adding, and distributing metal powder raw materials. Although they are widely used, they also have certain shortcomings. That is, most screw feeders are usually not equipped with other auxiliary discharging devices at the discharge port. Although the metal powder raw materials can reach the discharge port through the feeder guide screw for discharge, they can only achieve the transportation and uniform discharge of the powder raw materials. The discharge amount of the powder raw materials cannot be well controlled, making the feeder's function relatively simple. In addition, the subsequent distribution and processing of the powder raw materials and the early stage of the die-casting molding process require the addition of suitable distribution equipment to complete, which increases the cost of use and causes certain inconvenience and operational complexity.

[0003] Based on this, the utility model proposes a metal powder quantitative feeding device to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to overcome the above-mentioned deficiencies in the prior art and to provide a metal powder quantitative feeding device with a reasonable structural design, which can convey powder raw materials and perform quantitative weighing and distribution at the same time.

[0005] The technical solution adopted by the utility model to solve the above-mentioned problems is: a metal powder quantitative feeding device, including a feeding mechanism and a discharging mechanism, the feeding mechanism including a fixed frame, a feed hopper and a feeding screw, the feed hopper is fixed on the fixed frame, the feeding screw is fixed on the fixed frame, one end is connected to the bottom of the feed hopper, and the other end is connected to a first driving component to drive rotation and is provided with a discharge port, the discharging mechanism is arranged at the discharge port, and it includes a first discharging hopper and a second discharging hopper, the first discharging hopper and the second discharging hopper are provided with an adaptive guide plate that is rotated and respectively driven to rotate by the second driving component and the third driving component provided thereon, the first discharging hopper is connected to a fixed seat through a sliding rod below, the fixed seat is provided with a weighing module, and the second discharging hopper is slidably arranged on a sliding rod provided between the first discharging hopper and the fixed seat and is placed above the fixed seat weighing module.

[0006] Further: the guide plate includes a first guide plate and a second guide plate, which are respectively rotatably arranged in the first discharge hopper and the second discharge hopper, and the number of guide plates installed by the first guide plate driven to rotate by the second driving component is greater than the number of guide plates installed by the second guide plate driven to rotate by the third driving component.

[0007] Furthermore: the inner walls of the discharge ports of the first and second discharge hoppers are arranged in an arc surface, respectively adapted to fit with the first guide plate and the second guide plate arranged to rotate therein, and the opening arranged on the arc surface of the first discharge hopper is smaller than the opening arranged on the arc surface of the second discharge hopper.

[0008] Furthermore: a buffer seat is slidably provided on the slide rod and is sleeved with a spring, one end of the spring is connected to one end of the slide rod fixed below the first discharge hopper, and the other end is connected to the buffer seat below, and the buffer seat is placed above the outer side of the second discharge hopper.

[0009] Furthermore: a crushing assembly is also provided at the bottom of the feed hopper, and the crushing assembly includes a crusher, a crushing shaft and a filter plate. The crushing shaft is rotatably provided at the bottom of the feed hopper, the crusher is fixed on the outside of the feed hopper and is connected to the crushing shaft inside it and driven to rotate, and the filter plate is set at a certain angle and fixed on the side wall of the feed hopper and placed above the crushing shaft.

[0010] Furthermore: the feeding screw connected to the feed hopper is fixed on the fixing frame and is arranged at a certain angle to the fixing frame.

[0011] Furthermore: a base is provided below the fixing frame, one end of the base is hinged to the fixing frame, and the other end is hinged through a telescopic rod provided on the base.

[0012] Furthermore: a plurality of sets of universal wheels are provided at the bottom of the base, and each of the universal wheels is provided with a wheel lock.

[0013] Compared with the prior art, the present invention has the following advantages and effects:

[0014] 1. The utility model is a metal powder quantitative feeding device, which is improved on the basis of its traditional spiral feeder to make its functions diversified. With the assistance of its discharging mechanism, it can estimate the input amount of its powder raw materials, control its discharging amount, and facilitate the subsequent processing and distribution operations of the powder raw materials, thereby realizing the multi-purpose nature of one machine, convenient and quick operation and adjustment, and also reducing certain production and use costs.

[0015] 2. The crushing component can further screen and process batches of metal powder raw materials, making it easier for operators to observe the quality of the powder raw materials, facilitate subsequent processing, and further improve the utilization rate of the powder raw materials. The crushing component can further improve the processing efficiency of this device, making its functions more diversified and its use more extensive. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1-2 It is a structural schematic diagram of a metal powder quantitative feeding device according to an embodiment of the present utility model.

[0017] Figure 3 It is a partial enlarged view of the feeding mechanism and the discharging structure of the embodiment of the utility model.

[0018] Figure 4-6 It is an enlarged view of the discharging mechanism of the embodiment of the utility model.

[0019] Figure 7 It is a partial enlarged view of the feed hopper of the embodiment of the utility model.

[0020] Figure 8 It is a partial enlarged view of the fixing frame and the base of the embodiment of the utility model.

[0021] Figure numbers: feeding mechanism 1, fixed frame 11, feed hopper 12, feeding screw 13, discharge port 14, discharge mechanism 2, first discharge hopper 21, slide bar 211, buffer seat 2111, spring 2112, fixed seat 212, weighing module 2121, second discharge hopper 22, guide plate 3, first guide plate 31, second guide plate 32, crushing assembly 4, crusher 41, crushing shaft 42, filter plate 43, base 5, telescopic rod 51, universal wheel 6, first drive component 101, second drive component 102, third drive component 103, arc surface 104, opening 105, hinge shaft 106. DETAILED DESCRIPTION

[0022] The present invention will be further described in detail below with reference to the accompanying drawings and through examples. The following examples are provided to explain the present invention, but the present invention is not limited to the following examples.

[0023] See also Figure 1-6The present embodiment relates to a metal powder quantitative feeding device, comprising a feeding mechanism 1 and a discharging mechanism 2, wherein the feeding mechanism 1 comprises a fixed frame 11, a feed hopper 12 and a feeding screw 13, wherein the feed hopper 12 is fixed on the fixed frame 11, and the feeding screw 13 is fixed on the fixed frame 11, one end of which is connected to the bottom of the feed hopper 12, and the other end of which is connected to a first driving component 101 for driving rotation and provided with a discharging port 14, and the discharging mechanism 2 is provided at the discharging port 14, and comprises a first discharging hopper 21 and a second discharging hopper 22. The first discharging hopper 21 and the second discharging hopper 22 are rotatably provided with an adaptive guide plate 3 and are driven to rotate by the second driving component 102 and the third driving component 103 provided thereon respectively. The first discharging hopper 21 is connected to a fixed seat 212 through a sliding rod 211 below, and a weighing module 2121 is provided on the fixed seat 212. The second discharging hopper 22 is slidably provided on the sliding rod 211 provided between the first discharging hopper 21 and the fixed seat 212 and is placed above the weighing module 2121 of the fixed seat 212.

[0024] Specifically in this embodiment, metal powder raw materials are added to the feed hopper 12 on the fixed frame 11, and the powder raw materials reach the feeding screw 13 below through the feed hopper 12. The first driving component 101, the second driving component 102 and the third driving component 103 are all driven by an adapted driving motor. The feeding screw 13 rotates under the drive of the first driving component 101, and the powder raw materials reach the discharging mechanism 2 at the discharging port 14 through the feeding screw 13, and the powder raw materials enter the first discharging hopper 21. The second driving component 102 drives the internal adapted guide plate 3 to rotate, and transports the powder raw materials to the second discharging hopper 22 below, which is built into the internal guide plate 3. At the initial stage of transportation, the third The driving component 103 does not work to ensure that the guide plate 3 in the second discharge hopper 22 does not rotate and the powder raw material in the second discharge hopper 22 is not discharged. In the early stage of powder raw material transportation, the sliding arrangement on the slide bar 211 causes the second discharge hopper 22 to be placed above the weighing module 2121 due to its own weight. When the second discharge hopper 22 does not contain powder raw material, the weighing module 2121 on the fixed seat 212 is set to zero. At the same time, the signal line of the weighing module 2121 is connected to the second driving component 102 and the third driving component 103 and is provided with a controller. During the powder raw material transportation process, the weighing module 2121 weighs the powder raw material in the second discharge hopper 22 on the upper slide bar 211 in real time. The threshold value of the weighing module 2121 is set according to different usage and quantitative requirements. When the powder raw material in the second discharge hopper 22 reaches a certain weight, that is, when the weighing module 2121 reaches a certain threshold value, the weighing module 2121 sends a signal to the controller, and the second driving component 102 receives the controller signal and stops working, so that the guide plate 3 in the first hopper stops rotating, thereby stopping the conveying of the powder raw material into the second discharge hopper 22. During the period when the second driving component 102 stops working, the first driving component 101 does not stop working, thereby not affecting the conveying of the powder raw material into the first discharge hopper 21 by the feeding screw 13. The first discharge hopper 21 can store a certain amount of powder raw material. At the same time, the third driving component 103 It starts working after receiving the controller signal, driving the guide plate 3 in the second discharge hopper 22 to rotate, thereby discharging the powder raw material from the second discharge hopper 22 to the subsequent storage or distribution equipment for subsequent operation and processing. After the discharge is completed, the third driving component 103 drives the guide plate 3 in the second discharge hopper 22 to return to its original position, stops working and sends a signal to the controller. The controller sends a signal to its second driving component 102 to start working, thereby driving the guide plate 3 in the first discharge hopper 21 to rotate and continue to convey the powder raw material. By repeating the above process, the uniform conveying and quantitative distribution of the powder raw material can be achieved. This metal powder quantitative feeding device is improved on the basis of its traditional spiral feeder to make its functions diversified.With the assistance of the discharge mechanism 2, the input amount of the powder raw material can be estimated, the discharge amount can be controlled, and the subsequent processing and distribution of the powder raw material can be facilitated, thus achieving multi-purpose use of one machine, convenient and quick operation and adjustment, and also reducing certain production and use costs.

[0025] The guide plate 3 includes a first guide plate 31 and a second guide plate 32, which are respectively rotatably arranged in the first discharge hopper 21 and the second discharge hopper 22. The number of the guide plates 3 installed by the first guide plate 31 driven to rotate by the second driving component 102 is greater than the number of the guide plates 3 installed by the second guide plate 32 driven to rotate by the third driving component 103. Figure 4-6 As shown in the figure, through the above arrangement, since a large number of guide plates 3 are installed on the first guide plate 31, the discharge is more uniform and it can also further prevent the powder raw materials from falling into the second discharge hopper 22 during the stop of the first guide plate 31 when the second guide plate 32 in the second discharge hopper 22 reaches a certain amount, thereby causing weighing errors. Moreover, since a relatively small number of guide plates 3 are installed on the second guide plate 32, the discharge time of the powder raw materials in the second discharge hopper 22 is reduced, thereby reducing the stop time of the first guide plate 31, ensuring the uniformity and uniformity of the discharge, reducing weighing errors and improving operating efficiency.

[0026] The inner wall of the discharge port 14 of the first discharge hopper 21 and the second discharge hopper 22 is provided with an arc surface 104, which is respectively adapted to fit the first guide plate 31 and the second guide plate 32 which are rotatably provided therein, and the opening 105 provided on the arc surface 104 of the first discharge hopper 21 is smaller than the opening 105 provided on the arc surface 104 of the second discharge hopper 22. Figure 5As shown, the inner wall of the discharge port is provided with an arc surface 104 so that the first guide plate 31 and the second guide plate 32 rotate in the first discharge hopper 21 and the second discharge hopper 22 respectively, so as to adapt to and fit with the arc surface 104 and rotate, thereby preventing the metal powder raw material from remaining, avoiding the blockage or backlog of the powder raw material, reducing the waste of the powder raw material and improving the utilization rate, saving a certain amount of use cost, and reducing the frequency of cleaning and maintenance of such a device, playing a certain protective role and extending the service life. In addition, the opening 105 provided on the arc surface 104 of the first discharge hopper 21 is smaller than the opening 105 provided on the arc surface 104 of the second discharge hopper 22. Specifically, the opening 105 of the arc surface 104 of the first discharge hopper 21 can be adapted to the size of the guide groove formed between the guide plates 3 on the first guide plate 31. When the powder raw material on the second guide plate 32 in the second discharge hopper 22 is weighed by the weighing module 2121 and reaches a certain amount, the first guide plate 31 in the first discharge hopper 21 is controlled to stop rotating by the second driving component 102, and the opening 105 on the arc surface 104 of the discharge port 14 of the first discharge hopper 21 is adapted to The size of the opening 105 can further ensure that the powder raw materials accumulated on the first guide plate 31 are not affected by its stop position and fall into the second discharge hopper 22, thereby further reducing the weighing error caused by the change of the powder raw materials of the second guide plate 32 in the second discharge hopper 22 during operation, and the opening 105 opened on the arc surface 104 of the second discharge hopper 22 is relatively large, which can further speed up the distribution efficiency of the powder raw materials after weighing is completed, and further reduce the stop time of the first guide plate 31 in the first discharge hopper 21, reduce the accumulation of powder raw materials in the first discharge hopper 21, thereby improving the discharging and distribution efficiency of this device.

[0027] The slide bar 211 is provided with a buffer seat 2111 and is sleeved with a spring 2112. One end of the spring 2112 is connected to one end of the slide bar 211 fixed below the first discharge hopper 21, and the other end is connected to the buffer seat 2111 below. The buffer seat 2111 is placed above the outer side of the second discharge hopper 12. Figure 4As shown, the buffer seat 2111 on the slide bar 211 connected by the spring 2112 can reduce the large fluctuations of the second discharge hopper 22 during operation, and when the second discharge hopper 22 floats up and down greatly during operation, the second discharge hopper 22 has a tendency to move upward and slides upward along the slide bar 211, thereby contacting the upper buffer seat 2111 and under the action of its spring 2112, it has a tendency to move downward and has a certain buffering and shock-absorbing effect, reducing the floating amplitude of the second discharge hopper 22 so that it is placed on the weighing module 2121, further reducing the weighing error generated during operation, and ensuring the accuracy of the weighing data. In addition, the buffer seat 2111 and the spring 2112 on the slide bar 211 also play a certain protective role for the second discharge hopper 22, further reducing the probability of equipment damage and improving operational stability.

[0028] See also Figure 7 , the bottom of the feed hopper 12 is also provided with a crushing assembly 4, the crushing assembly 4 includes a crusher 41, a crushing shaft 42 and a filter plate 43, the crushing shaft 42 is rotatably arranged at the bottom of the feed hopper 12, the crusher 41 is fixed on the outside of the feed hopper 12 and is connected to the crushing shaft 42 inside it and driven to rotate, the filter plate 43 is set at a certain angle and fixed on the side wall of the feed hopper 12 and placed above the crushing shaft 42, the metal powder raw material is poured into the filter plate 43 in the feed hopper 12, the metal powder raw material is filtered by the filter plate 43, and the qualified powder raw material directly enters the feeding screw 13 at the bottom for transportation, and the unqualified raw materials such as particles or lumps in the powder raw material will be separated by the filter plate 43 and arrive Above the crushing shaft 42 below, the crusher 41 drives the crushing shaft 42 to rotate. The crushing shaft 42 rotates in the feed hopper 12 and at the same time, performs secondary crushing on unqualified raw materials such as particles or lumps in the metal powder raw materials. After being crushed by the crushing component 4, the qualified particles or lumps and other unqualified raw materials fall onto the feeding screw 13 for transportation. The crushing component 4 can further screen and process batches of metal powder raw materials, making it convenient for operators to observe the quality of the powder raw materials, facilitating subsequent processing, and further improving the utilization rate of the powder raw materials. The crushing component 4 can further improve the processing efficiency of this device, making its functions more diversified and its use more extensive.

[0029] The feeding screw 13 connected to the feed hopper 12 is fixed on the fixing frame 11 and is arranged at a certain angle to the fixing frame 11, such as Figure 1-2As shown, the feeding screw 13 arranged at a certain angle to the fixed frame 11 can, on the one hand, make the metal powder raw material have better fluidity during the transportation process, and reduce the accumulation or blockage of the powder raw material; on the other hand, the feeding screw 13 at a certain angle can adapt to the required storage silo to transport and store powder raw materials at a certain height and in large quantities, meeting different usage requirements, and is also convenient for installation and maintenance. The feeding screw 13 at a certain angle to the fixed frame 11 makes the structure of this device more compact, improves space utilization, and is suitable for environments with limited space.

[0030] See also Figure 8 The base 5 is provided below the fixed frame 11, and one end of the base 5 is hinged to the fixed frame 11, and the other end is hinged through the telescopic rod 51 provided on the base 5. Specifically, when in use, the angle of the feeding screw 13 can be appropriately adjusted according to the powder raw material conveying position and the specific height. The base 5 and the fixed frame 11 are hinged through hinge shafts 106 provided on both sides. One end of the telescopic rod 51 is fixed on the base 5, and the other end is connected to the hinge shaft 106 provided between the fixed frame 11. If height adjustment is required, the telescopic rod 51 fixed on the base 5 can be extended upward to a certain length, and the fixed frame 11 is rotated on its base 5 and lifted upward to a certain height through the hinge shaft 106, thereby driving the feeding screw 13 to be lifted upward to a certain height to meet different feeding requirements and usage environments, making it convenient to adjust while further increasing its applicability and flexibility of use.

[0031] The bottom of the base 5 is provided with multiple sets of universal wheels 6, and the universal wheels 6 are all provided with wheel locks. The multiple sets of universal wheels 6 make it easy for this device to be moved and adjusted to different positions, meeting different usage scenarios and usage requirements, and preventing wear or deformation of the ground and the surface of the seat during operation or position adjustment. At the same time, the universal wheels 6 are all provided with wheel locks, which can prevent this device from shaking or position displacement during operation, thereby improving operational stability.

[0032] The above contents described in this specification are merely examples of the present invention. Those skilled in the art of the present invention may make various modifications, additions, or substitute similar methods to the specific embodiments described, as long as they do not deviate from the contents of this specification or exceed the scope defined by the claims, and shall fall within the scope of protection of the present invention.

Claims

1. A metal powder quantitative feeding device, characterized in that: It includes a feeding mechanism and a discharging mechanism, the feeding mechanism includes a fixed frame, a feed hopper and a feeding screw, the feed hopper is fixed on the fixed frame, the feeding screw is fixed on the fixed frame, one end of the feeding screw is connected to the bottom of the feed hopper, and the other end is connected to a first driving component to drive rotation and is provided with a discharging port, the discharging mechanism is arranged at the discharging port, and includes a first discharging hopper and a second discharging hopper, the first discharging hopper and the second discharging hopper are rotatably provided with an adaptive guide plate and are respectively driven to rotate by a second driving component and a third driving component arranged thereon, the first discharging hopper is connected to a fixed seat through a sliding rod below, a weighing module is arranged on the fixed seat, and the second discharging hopper is slidably arranged on a sliding rod arranged between the first discharging hopper and the fixed seat and is placed above the weighing module of the fixed seat.

2. A metal powder quantitative feeding device according to claim 1, characterized in that: The material guide plates include a first material guide plate and a second material guide plate, which are rotatably arranged in the first discharge hopper and the second discharge hopper respectively. The number of material guide plates installed on the first material guide plate driven to rotate by the second driving component is greater than the number of material guide plates installed on the second material guide plate driven to rotate by the third driving component.

3. A metal powder quantitative feeding device according to claim 2, characterized in that: The inner walls at the discharge ports of the first and second discharge hoppers are provided with arc surfaces, which are respectively adapted to fit with the first guide plate and the second guide plate rotatably provided therein, and the opening provided on the arc surface of the first discharge hopper is smaller than the opening provided on the arc surface of the second discharge hopper.

4. A metal powder quantitative feeding device according to claim 1, characterized in that: A buffer seat is slidably arranged on the slide bar and is sleeved with a spring. One end of the spring is connected to one end of the slide bar fixed below the first discharge hopper, and the other end is connected to the buffer seat below. The buffer seat is placed above the outer side of the second discharge hopper.

5. A metal powder quantitative feeding device according to claim 1, characterized in that: A crushing assembly is also provided at the bottom of the feed hopper, and the crushing assembly includes a crusher, a crushing shaft and a filter plate. The crushing shaft is rotatably arranged at the bottom of the feed hopper, the crusher is fixed on the outside of the feed hopper and is connected to the crushing shaft inside the feed hopper and driven to rotate, and the filter plate is arranged at a certain angle and fixed on the side wall of the feed hopper and placed above the crushing shaft.

6. A metal powder quantitative feeding device according to claim 1, characterized in that: The feeding screw connected to the feed hopper is fixed on the fixing frame and is arranged at a certain angle to the fixing frame.

7. A metal powder quantitative feeding device according to claim 1, characterized in that: A base is arranged below the fixing frame. One end of the base is hinged to the fixing frame, and the other end is hinged to the fixing frame through a telescopic rod arranged on the base.

8. A metal powder quantitative feeding device according to claim 7, characterized in that: A plurality of sets of universal wheels are arranged at the bottom of the base, and wheel locks are arranged on the universal wheels.

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