Lifting mechanism and feeding machine

Abstract

The utility model discloses a lifting mechanism and a feeding machine, and the lifting mechanism comprises a first spacer bush which is fixed on an equipment main body; the guide shaft penetrates through the first spacer bush to be connected with a lifted part, and the guide shaft and the first spacer bush are tightly attached and can slide relatively; the moving body is connected with the guide shaft and is used for driving the guide shaft to do linear motion; the rotating body is adaptively connected with the moving body, and the adaptive structure is used for converting the rotating motion of the rotating body into the linear motion of the moving body; the fixed seat is fixed on the equipment main body; and the second spacer bush is arranged between the fixed seat and the rotating body and is used for restraining other degrees of freedom, except rotation, of the rotating body. The utility model further comprises the feeder comprising the lifting mechanism. According to the utility model, metal foreign matters can be effectively prevented from entering materials, the fine adjustment of the discharge quantity of the materials can be realized, and the materials are ensured to be uniformly and continuously discharged at the discharge hole.

Description

Technical Field

[0001] This utility model relates to a lifting mechanism, and more particularly to a lifting mechanism and a feeder. Background Technology

[0002] Existing lifting mechanisms typically employ complex drive devices and multiple mechanical components. While these designs can achieve lifting functions, they often suffer from the following significant drawbacks: (1) Complex structure and high cost: Existing lifting mechanisms mostly rely on electric drive or hydraulic systems, employing relatively complex structures and multiple moving parts. This not only leads to higher equipment manufacturing and maintenance costs but also increases the probability of malfunctions. Especially during long-term operation, electric drive or hydraulic systems are prone to leakage, wear, and other problems, affecting the stability and service life of the equipment; (2) Difficult maintenance and high failure rate: Due to the complex design of existing lifting mechanisms, which involve the coordinated work of multiple components, professional personnel are required to repair malfunctions, resulting in long maintenance cycles and high costs. In some high-frequency industrial environments, complex lifting devices are prone to malfunctions, leading to downtime for maintenance and affecting production efficiency; (3) Risk of metal foreign objects entering: In existing lifting mechanisms, due to the complexity of the mechanical devices, friction and wear between various components can easily lead to the generation of metal foreign objects. These foreign objects may enter the material conveying system, especially in fields with high material quality requirements, such as lithium battery manufacturing and food processing industries. The incorporation of metal foreign objects may seriously affect product quality and even lead to equipment damage or production safety accidents.

[0003] The homogenizing disc feeder is an advanced feeding device widely used in the conveying of various materials, offering many significant advantages. This equipment enables uniform and continuous material supply, ensuring a stable flow rate at the discharge port, and is adaptable to different types of materials, exhibiting strong material adaptability. Furthermore, the homogenizing disc feeder allows materials to be conveyed according to the first-in, first-out (FIFO) principle, effectively reducing material congestion and improving production efficiency. Its operation is stable and reliable, and it can reduce hopper height, saving space, thus finding widespread application in various fields.

[0004] In practical applications, the regulating ring of a homogenizing disc feeder is often used to control the discharge rate. The regulating ring's function is to adjust the material discharge rate to meet the production line's needs. However, existing technologies have certain limitations in regulating ring control. First, due to the ring's design, users often find it difficult to achieve precise control when adjusting the discharge rate, leading to unstable discharge rates or rates that do not meet predetermined requirements. Second, during the adjustment process, metal foreign objects may fall into the equipment. This not only affects the material quality but, in some industries, especially in fields with extremely high material quality requirements such as the lithium battery industry, the incorporation of metal foreign objects can seriously impact the production process.

[0005] Therefore, how to prevent the ingress of metallic foreign objects and improve the accuracy of adjustment has become a technical problem that urgently needs to be solved in the current field of technology. Utility Model Content

[0006] The purpose of this utility model is to overcome the above-mentioned shortcomings of the prior art and provide a lifting mechanism with simple structure, low failure rate, convenient maintenance, precise adjustment, and prevention of foreign objects from entering the material, as well as a feeder containing the lifting mechanism.

[0007] The technical solution of this utility model is:

[0008] One type of lifting mechanism of this utility model includes:

[0009] The first spacer is fixed to the main body of the equipment;

[0010] A guide shaft passes through the first spacer and is connected to the lifted component. The guide shaft and the first spacer are in close contact and can slide relative to each other.

[0011] A movable body, connected to the guide shaft, is used to drive the guide shaft to perform linear motion;

[0012] A rotating body is adapted to and connected to a moving body. This adapter structure is used to convert the rotational motion of the rotating body into the linear motion of the moving body.

[0013] The mounting base is fixed to the main body of the equipment.

[0014] The second spacer is located between the fixed seat and the rotating body and is used to constrain the other degrees of freedom of the rotating body besides rotation.

[0015] Furthermore, the rotating body has an internal thread, and the moving body has an external thread. The moving body is disposed inside the rotating body and engages with the internal thread of the rotating body. The lifting and lowering of the moving body is achieved by rotating the rotating body.

[0016] Furthermore, the rotating body is provided with a scale, and one side of the scale is provided with an elongated hole for observing the position of the moving body.

[0017] Furthermore, the upper part of the guide shaft is located within the rotating body, and its outer periphery is connected to the moving body. A retaining ring for locking the guide shaft is provided above the moving body.

[0018] Furthermore, a protective cover is provided on the outside of the rotating body.

[0019] Furthermore, the rotating body is an internal threaded sleeve, and the moving body is an external threaded sleeve; both the first spacer and the second spacer are made of non-metallic materials.

[0020] Furthermore, the lower end of the rotating body extends out to form a step, with a first spacer below the edge and a second spacer limiting the upper part of the edge.

[0021] One type of feeder of the present invention includes a lifting mechanism according to any one of the preceding claims.

[0022] Furthermore, it includes a frame and a cylinder; the cylinder includes an inner cylinder for containing materials and an outer cylinder for connecting lifting mechanisms, the outer cylinder having at least two sets of lifting mechanisms evenly distributed circumferentially, the lifting mechanisms being connected to adjusting rings; a discharge channel is formed below the inner cylinder; the adjusting ring is located on the outer periphery of the discharge channel, and its movement is controlled by the lifting mechanisms to adjust the discharge gap.

[0023] Furthermore, a turntable is provided below the discharge channel, and the turntable is connected to a drive motor via a drive shaft; a base is provided below the turntable, and the base passes through the drive shaft and is fixed to the frame, and a discharge port is provided on the base; the lower end of the adjusting ring extends downward along the discharge channel, maintaining a gap with the turntable below; the turntable and the base also maintain a gap; the material can flow along the discharge channel to the outer cylinder under the stirring of the turntable, and be discharged through the discharge port of the base.

[0024] The beneficial effects of this utility model are as follows: On the one hand, the entire lifting mechanism has a simple structure, low cost, and is easy to maintain. It does not require a complex drive mechanism and only needs to achieve the lifting action through a simple mechanical device, which reduces the failure rate. Moreover, the cooperation between the first and second partitions can effectively prevent metal foreign objects from entering the material and ensure the quality of the material. On the other hand, by driving the adjusting ring to rise and fall through the lifting mechanism and setting a scale on the lifting mechanism, the discharge gap can be precisely controlled, thereby achieving fine adjustment of the material discharge volume and ensuring that the material is discharged evenly and continuously at the discharge port, thus avoiding material blockage, accumulation, or unevenness and ensuring the smooth operation of the production process. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of the feeder according to an embodiment of the present invention;

[0026] Figure 2 yes Figure 1 An enlarged structural diagram of part A in the embodiment shown;

[0027] Figure 3 yes Figure 2 A partially enlarged schematic diagram of the lifting mechanism in the illustrated embodiment;

[0028] Figure 4 yes Figure 2 The illustrated embodiment shows a schematic diagram of the internal threaded sleeve with a scale.

[0029] Explanation of reference numerals in the attached diagram:

[0030] 1. Frame; 2. Cylinder; 3. Lifting mechanism; 4. Adjusting ring; 5. Upper flange; 6. Drive base; 7. Drive motor; 8. Turntable; 9. Chassis; 21. Inner cylinder; 22. Outer cylinder; 23. Discharge channel; 31. Guide shaft; 32. First spacer; 33. Second spacer; 34. Fixed seat; 35. External threaded sleeve; 36. Snap ring; 37. Internal threaded sleeve; 38. Protective cover; 81. Support seat; 82. Disc; 83. Arch breaker tip; 91. Discharge port; 371. Internal threaded sleeve seat; 372. Scale; 373. Waist-shaped hole. Detailed Implementation

[0031] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0032] like Figure 1 As shown: A feeder includes a frame 1 and a cylinder 2; at least three sets of lifting mechanisms 3 are evenly distributed along the circumference of the cylinder 2, and the lifting mechanisms 3 are connected to adjusting rings 4; the cylinder 2 is connected to a hopper through an upper flange 5; a drive base 6 is provided on the frame 1, a drive motor 7 is supported on the drive base 6, the drive motor 7 is connected to a turntable 8 through a drive shaft, a base 9 is provided below the turntable 8, the base 9 passes through the drive shaft and is fixed to the frame 1, and a discharge port 91 is provided on the base 9. The turntable 8 includes a support seat 81 connected to the drive shaft and a disc body 82 connected to the support seat; the support seat 81 of the turntable is provided with an arch-breaking tip 83, which can be used to puncture the packaging bags in the hopper to allow the material to enter the cylinder.

[0033] In this embodiment, the cylinder 2 includes an inner cylinder 21 for containing materials and an outer cylinder 22 for connecting the lifting mechanism 3. The inner cylinder 21 is connected to the hopper via an upper flange 5, and the lower part of the inner cylinder 22 is suspended, with a certain gap between it and the turntable 8 located below it, forming a discharge channel 23. The turntable 8 also has a gap with the base plate 9 located below it, and the discharge port 91 of the base plate is located at the outer cylinder 22. The material can flow along the discharge channel 23 to the outer cylinder 22 under the stirring of the turntable 8 and be discharged through the discharge port 91 of the base plate. An adjusting ring 4 is located inside the outer cylinder 22 and arranged around the outer periphery of the inner cylinder discharge channel 23. The lower end of the adjusting ring 4 extends downward along the discharge channel 23, maintaining a certain gap with the turntable 8 below. The upper end of the adjusting ring 4 is provided with a flange, and the lifting mechanism 3 is flange-connected to the adjusting ring 4. The adjusting ring 4 is controlled by the lifting mechanism 3 to adjust the discharge gap, ensuring that the material is discharged evenly and continuously at the discharge port.

[0034] like Figure 2 and Figure 3 As shown: In this embodiment, the lifting mechanism 3 includes a guide shaft 31, a first spacer 32, a second spacer 33, a fixed seat 34, an external threaded sleeve 35, a retaining ring 36, an internal threaded sleeve 37, and a protective cover 38.

[0035] Specifically, the first spacer 32 is fixed to the cylinder 2. The lower end of the guide shaft 31 passes through the inner hole of the first spacer 32 and fits tightly, allowing relative sliding. The lower end of the guide shaft 31 passes through the first spacer 32 and enters the outer cylinder 22 of the cylinder, and is fixed to the flange of the adjusting ring 4. The guide shaft 31 is made of metal, while the first spacer 32 can be made of a non-metal with low friction, such as PTFE. The external threaded sleeve 35 is fixed at the upper position of the guide shaft 31, and the retaining ring 36 is located at the upper end of the external threaded sleeve 35 and holds the guide shaft 31, preventing relative movement between the external threaded sleeve 35 and the guide shaft 31. The internal threaded sleeve 37 is placed on the first spacer 32, and the external threaded sleeve 35 is located inside the internal threaded sleeve 37 and screwed into it. Rotating the internal threaded sleeve 37 raises and lowers the external threaded sleeve 35, thereby driving the guide shaft 31 to raise and lower, thus raising and lowering the adjusting ring 4. A fixing seat 34 is provided on the outer periphery of the internal threaded sleeve 37 and the first spacer 32. The fixing seat 34 is fixed to the cylinder 2 by screws. A second spacer 33 is provided between the fixing seat 34 and the internal threaded sleeve 37. The second spacer 33 is located between the step of the fixing seat 34 and the step of the internal threaded sleeve 37. The second spacer 33 is connected to the fixing seat 34 by fasteners to limit the internal threaded sleeve 37 in the lateral and longitudinal directions, ensuring that the internal threaded sleeve 37 can only rotate, while other degrees of freedom are effectively constrained.

[0036] Because the lower end of the internal threaded sleeve 37 extends outward to form a stepped edge, a first spacer 32 is provided below the edge, and a second spacer 33 limits the edge above it. Thus, the internal threaded sleeve 37 is separated from the material above and below by non-metallic spacers, resulting in low rotational resistance and a low probability of metal foreign objects forming between it and the non-metallic spacers. When the threads of the internal threaded sleeve 37 and the external threaded sleeve 35 move relative to each other, friction will generate some metal foreign objects. However, due to the obstruction of the first spacer 32, these metal foreign objects will not enter the material inside the cylinder 2.

[0037] Furthermore, such as Figure 4 As shown: The internal threaded sleeve 37 consists of an internal threaded sleeve seat 371 and a scale 372. The scale 372 is fixed on the internal threaded sleeve seat 371. The internal threaded sleeve seat 371 has a slotted hole 373, and the number of slotted holes can be one or more. The position of the external threaded sleeve 35 can be observed through the slotted hole 373. The scale corresponding to the external threaded sleeve 35 and the scale 372 is the adjustment amount of the adjusting ring 4, which facilitates the adjustment and inspection of the adjustment amount of the adjusting ring. Only this scale value needs to be observed.

[0038] Furthermore, the internal threaded sleeve 37 is covered with a protective cover 38. When the lifting mechanism is not working, the protective cover 38 is fixed to the outer cylinder 22 of the cylinder body by screws to prevent the internal threaded sleeve 37 from being accidentally adjusted, which would affect the adjustment range of the lifting mechanism 3. At the same time, it can make the lifting mechanism 3 look better.

[0039] The working principle of this embodiment is as follows: the drive motor 7 drives the turntable 8 to rotate. When the turntable 8 rotates, the material in the inner cylinder 21 moves around the turntable 8 and enters the outer cylinder 22. The turntable 8 scrapes the material to the discharge port 91, and the material is discharged through the discharge port 91. The discharge amount is achieved by adjusting the height of the adjusting ring 4. That is, by rotating the internal thread sleeve 37 clockwise or counterclockwise, the external thread sleeve 35 is driven to rise or fall. Since the external thread sleeve 35 is fixedly connected to the guide shaft, the guide shaft 31 is driven to rise and fall. The adjusting ring 4 is raised and lowered under the control of the guide shaft 31 so as to feed the material evenly and continuously to the next process.

[0040] In summary, this embodiment offers several advantages. First, the entire lifting mechanism is simple in structure, low in cost, and easy to maintain. It does not require a complex drive mechanism; lifting action is achieved through a simple mechanical device, reducing the failure rate. Furthermore, the cooperation between the various mechanical components, especially the cooperation between the first and second spacers, effectively prevents metal foreign objects from entering the material, ensuring material quality. Second, by using the lifting mechanism to drive the adjusting ring to rise and fall, and by setting a scale on the lifting mechanism, the discharge gap can be precisely controlled, thereby achieving fine adjustment of the material discharge volume. This ensures that the material is discharged evenly and continuously at the discharge port, avoiding material blockage, accumulation, or unevenness, and guaranteeing the smooth operation of the production process.

[0041] Furthermore, the term "connection" should be interpreted broadly, for example, it can include fixed connections, detachable connections, or integral connections; it can include direct connections or indirect connections through an intermediate medium, and it can also include internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0042] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0043] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A lifting mechanism, characterized in that, include: The first spacer is fixed to the main body of the equipment; A guide shaft passes through the first spacer and is connected to the lifted component. The guide shaft and the first spacer are in close contact and can slide relative to each other. A movable body, connected to the guide shaft, is used to drive the guide shaft to perform linear motion; A rotating body is adapted to and connected to a moving body, and the rotational motion of the rotating body is converted into the linear motion of the moving body through the adaptation connection. The mounting base is fixed to the main body of the equipment; The second spacer is located between the fixed seat and the rotating body and is used to constrain the other degrees of freedom of the rotating body besides rotation.

2. The lifting mechanism according to claim 1, characterized in that, The rotating body has an internal thread, and the moving body has an external thread. The moving body is located inside the rotating body and engages with the internal thread of the rotating body. The moving body is raised and lowered by rotating the rotating body.

3. The lifting mechanism according to claim 2, characterized in that, The rotating body is equipped with a scale, and one side of the scale has an elongated hole for observing the position of the moving body.

4. The lifting mechanism according to claim 1, 2, or 3, characterized in that, The upper part of the guide shaft is located inside the rotating body, and its outer periphery is connected to the moving body. A retaining ring for locking the guide shaft is provided above the moving body.

5. The lifting mechanism according to claim 1, 2, or 3, characterized in that, The rotating body is equipped with a protective cover.

6. The lifting mechanism according to claim 2 or 3, characterized in that, The rotating body is an internal threaded sleeve, and the moving body is an external threaded sleeve; both the first and second spacers are made of non-metallic materials.

7. The lifting mechanism according to claim 1, 2, or 3, characterized in that, The lower end of the rotating body extends out to form a step, with a first spacer below the edge and a second spacer limiting the upper part of the edge.

8. A feeder, characterized in that, Includes the lifting mechanism according to any one of claims 1 to 6.

9. The feeder according to claim 8, characterized in that, The device includes a frame and a cylinder; the cylinder includes an inner cylinder for containing materials and an outer cylinder for connecting a lifting mechanism, wherein at least two sets of the lifting mechanism are evenly distributed around the outer cylinder, and the lifting mechanism is connected to an adjusting ring; a discharge channel is formed below the inner cylinder; the adjusting ring is located on the outer periphery of the discharge channel, and its movement is controlled by the lifting mechanism to adjust the discharge gap.

10. The feeder according to claim 9, characterized in that, A turntable is located below the discharge channel, and the turntable is connected to a drive motor via a drive shaft. A base is located below the turntable, and the base passes through the drive shaft and is fixed to the frame. The base has a discharge port. The lower end of the adjusting ring extends downward along the discharge channel, maintaining a gap with the turntable below. The turntable and the base also maintain a gap. The material can flow along the discharge channel to the outer cylinder under the stirring of the turntable and be discharged through the discharge port of the base.

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