A material feeding tube feeding amount adjustment mechanism

Abstract

This utility model relates to the field of material feeding tube technology and discloses a material feeding tube material feeding amount adjustment mechanism, including a material feeding tube, a square connector fixedly connected to the top end of the material feeding tube, a through hole for material feeding provided on the inner side of the square connector, a rotating shaft rotatably connected to the inner side of the material feeding tube, an adjusting plate fixedly connected to the outer side of the rotating shaft, and a driving component for driving the rotating shaft to rotate provided at the bottom end of the square connector. By setting the driving component, this utility model can make the adjusting plate accurately stop at any angle position between "fully open" and "fully closed" by continuously adjusting the driving component, and can continuously and steplessly adjust the effective cross-sectional area of ​​the material flow channel in the material feeding tube, thereby realizing precise control of the material feeding amount. After the angle of the adjusting plate is set, as long as the material characteristics are relatively stable, the driving component can keep the angle unchanged, and the material feeding amount can remain stable, realizing automatic closed-loop control of the material feeding amount.

Description

Technical Field

[0001] This utility model relates to the field of material feeding tube technology, specifically a material feeding tube material feeding amount adjustment mechanism. Background Technology

[0002] In the field of material handling, the discharge pipe, as a key component connecting upstream conveying equipment and downstream receiving devices, directly affects the stability and efficiency of the entire production process through precise control of its discharge volume. Traditional methods of adjusting the discharge volume often rely on manual adjustment or simple mechanical structures, such as changing the baffle angle by adjusting bolts or using screws or lead screws to open and close the discharge plate. However, these methods generally suffer from low adjustment accuracy and insufficient automation. Manual adjustment is not only inefficient but also difficult to adapt to dynamic changes in material characteristics (such as particle size, moisture, and viscosity), leading to large fluctuations in the discharge volume and easily causing overload of downstream equipment or material accumulation. Therefore, a discharge volume adjustment mechanism for the discharge pipe is proposed to solve the above problems. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] The purpose of this utility model is to solve the problems of adjusting the baffle angle by adjusting bolts or using transmission mechanisms such as screws and lead screws to open and close the discharge plate. However, these methods generally have the problems of low adjustment accuracy and insufficient automation. Therefore, a discharge tube discharge amount adjustment mechanism is proposed.

[0005] (II) Technical Solution

[0006] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0007] A material discharge amount adjustment mechanism for a material discharge pipe includes a material discharge pipe, a square connector is fixedly connected to the top end of the material discharge pipe, a through hole for material discharge is provided on the inner side of the square connector, a rotating shaft is rotatably connected to the inner side of the material discharge pipe, an adjustment plate is fixedly connected to the outer side of the rotating shaft, and a drive assembly for driving the rotating shaft to rotate is provided at the bottom end of the square connector.

[0008] Based on the above technical solution, the present invention can be further improved as follows.

[0009] Preferably, the drive assembly includes a mounting base, the bottom end of the square connector is fixedly connected to the mounting base, the inner side of the mounting base is fixedly connected to a cylinder, the inner side of the cylinder is slidably connected to a cylinder push rod, the bottom end of the cylinder push rod is provided with a conversion mechanism for converting linear motion into rotation, the front end of the discharge pipe is fixedly connected to a fixed seat, and the cylinder is fixedly connected to the fixed seat.

[0010] Preferably, the conversion mechanism includes a U-shaped connector, the bottom end of the cylinder push rod is fixedly connected to the U-shaped connector, the outer side of the rotating shaft is fixedly connected to a connecting arm, the inner side of the connecting arm is provided with a sliding hole, the inner side of the sliding hole is slidably connected to a pulley, and the pulley is slidably limited and connected to the inner side of the U-shaped connector.

[0011] Preferably, the portion of the rotating shaft located outside the discharge tube is provided with a flat key, and the inner side of the connecting arm is provided with a small hole that matches the flat key.

[0012] Preferably, a back plate is fixedly connected to the rear end of the discharge tube, and a plurality of mounting holes are provided on the back plate.

[0013] (III) Beneficial Effects

[0014] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0015] 1. By setting a drive component, this utility model can make the adjustment plate precisely stop at any angle position between "fully open" and "fully closed" by continuously adjusting the drive component. It can continuously and steplessly adjust the effective cross-sectional area of ​​the material flow channel in the discharge pipe, thereby achieving precise control of the discharge amount. After the angle of the adjustment plate is set, as long as the material characteristics are relatively stable, the drive component can keep the angle unchanged, and the discharge amount can remain stable, realizing automatic closed-loop control of the discharge amount.

[0016] 2. This utility model uses a flat key to transmit high torque. During the material feeding adjustment process, the adjustment plate may be subjected to the impact force and lateral pressure from the material flow above, as well as the frictional resistance with the pipe wall during the opening and closing process. The flat key can efficiently and reliably withstand the huge torque that these resistances are converted into on the connecting arm, ensuring that the power can be effectively transmitted and avoiding slippage. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram showing the relative positional relationship between the rotating shaft and the adjusting plate of this utility model;

[0019] Figure 3 This is a schematic diagram showing the relative positional relationship between the sliding hole and the pulley in this utility model.

[0020] In the diagram: 1. Feed pipe; 2. Square connector; 3. Rotary shaft; 4. Adjusting plate; 5. Drive assembly; 51. Mounting base; 52. Cylinder; 53. Cylinder push rod; 54. Conversion mechanism; 541. U-shaped connector; 542. Connecting arm; 543. Sliding hole; 544. Pulley; 55. Fixed base; 6. Flat key; 7. Small hole; 8. Back plate; 9. Mounting hole. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] In the embodiments, by Figure 1-3 A material discharge amount adjustment mechanism for a material discharge pipe is provided, comprising a material discharge pipe 1, a square connector 2 fixedly connected to the top end of the material discharge pipe 1, a through hole for material discharge provided on the inner side of the square connector 2, a rotating shaft 3 rotatably connected to the inner side of the material discharge pipe 1, an adjusting plate 4 fixedly connected to the outer side of the rotating shaft 3, and a driving component 5 for driving the rotating shaft 3 to rotate provided at the bottom end of the square connector 2.

[0023] With the above settings, the operator starts the drive assembly 5 installed at the bottom of the square connector 2. The output end of the drive assembly 5 is connected to the rotating shaft 3. The action of the drive assembly 5 will directly drive the rotating shaft 3 to rotate. Since the adjusting plate 4 is fixedly connected to the outside of the rotating shaft 3 (such as by welding, key connection or integral molding), when the rotating shaft 3 rotates, the adjusting plate 4 will also rotate synchronously inside the discharge pipe 1. Different rotation angles of the adjusting plate 4 will change the position and angle of its own plane relative to the inner cavity channel of the discharge pipe 1. When the adjusting plate 4 rotates to the point where its plane is parallel (or nearly parallel) to the direction of material falling, the area it blocks the material is the smallest, the effective cross-sectional area of ​​the material flow channel is the largest, and the discharge volume is the largest. When the drive assembly 5 drives the rotating shaft 3 and the adjusting plate 4 to rotate to other angles, the plane of the adjusting plate 4 begins to tilt, and the area blocking the material increases. Like a revolving door or gate, it partially obstructs the inner cavity of the material discharge pipe 1, reducing the effective cross-sectional area through which material can pass. When the adjusting plate 4 rotates to a position where its plane is perpendicular (or nearly perpendicular) to the material's falling direction, it almost completely blocks the material discharge channel, at which point the material discharge is minimal or close to zero (or completely cut off if the seal is good). By continuously adjusting the drive assembly 5, the adjusting plate 4 can be precisely stopped at any angle position between "fully open" and "fully closed," thus continuously and steplessly adjusting the effective cross-sectional area of ​​the material flow channel within the material discharge pipe 1, thereby achieving control over the material discharge rate (per unit time). With precise control of flow rate, once the angle of the adjustment plate 4 is set, as long as the material characteristics (such as particle size and flowability) are relatively stable, the drive component 5 can maintain a constant angle, and the discharge rate can remain stable. The drive component 5 is easily integrated with the automation control system (PLC, DCS) to achieve automatic closed-loop control of the discharge rate. When the drive component 5 is installed externally, maintenance, repair or replacement usually does not require disassembling the entire discharge pipe 1. It should be noted that the automation control system is existing technology and is common knowledge that can be easily learned. Therefore, the specific control system and how the control system controls the drive component 5 will not be described in detail.

[0024] Reference Figure 1-3 The drive assembly 5 includes a mounting base 51, the bottom end of the square connector 2 is fixedly connected to the mounting base 51, the inner side of the mounting base 51 is fixedly connected to the cylinder 52, the inner side of the cylinder 52 is slidably connected to the cylinder push rod 53, the bottom end of the cylinder push rod 53 is provided with a conversion mechanism 54 that converts linear motion into rotation, the front end of the discharge pipe 1 is fixedly connected to the fixed base 55, and the cylinder 52 is fixedly connected to the fixed base 55.

[0025] With the above-described structure, an external air source (compressed air) is connected to the cylinder 52, pushing the piston and cylinder push rod 53 to extend. The linear reciprocating motion of the cylinder push rod 53 is transmitted to the conversion mechanism 54 connected to its bottom end. The conversion mechanism 54 forcibly converts the input linear motion into rotational motion. The output end of the conversion mechanism 54 is connected to the rotating shaft 3 inside the discharge pipe 1. The rotational motion output by the conversion mechanism 54 directly drives the rotating shaft 3 to rotate inside the discharge pipe 1. Since the adjusting plate 4 is fixedly connected to the outside of the rotating shaft 3, the rotation of the rotating shaft 3 drives the adjusting plate 4 to rotate synchronously.

[0026] Reference Figure 1-3 The conversion mechanism 54 includes a U-shaped connector 541. The bottom end of the cylinder push rod 53 is fixedly connected to the U-shaped connector 541. The outer side of the rotating shaft 3 is fixedly connected to the connecting arm 542. The inner side of the connecting arm 542 is provided with a sliding hole 543. The inner side of the sliding hole 543 is slidably connected to a pulley 544. The pulley 544 is slidably limited and connected to the inner side of the U-shaped connector 541.

[0027] With the above structural arrangement, when the cylinder push rod 53 extends or retracts, it drives the U-shaped connector 541 fixedly connected to it to perform linear reciprocating motion. The linear motion of the U-shaped connector 541 pushes or pulls the pulley 544, which is limited in the sliding hole 543, to move along the same linear path. Since the pulley 544 is driven to perform linear motion by the U-shaped connector 541, and the pulley 544 is also nested in the sliding hole 543 of the connecting arm 542, the pulley 544 will be forced to make relative movement (usually rolling, with a small amount of sliding) within the sliding hole 543 of the connecting arm 542 when it moves along the linear path. 4. The position of the connecting arm 542 within the sliding hole 543 (distance and angle from the center hole of the connecting arm 542) will change continuously with the movement. The sliding hole 543 constrains and drives the connecting arm 542 to rotate: The sliding hole 543 plays a key role in constraining and guiding the movement of the pulley 544. The linear movement of the pulley 544 within the sliding hole 543 forces the connecting arm 542 to rotate accordingly. Since the connecting arm 542 is rigidly fixed on the rotating shaft 3, the rotation of the connecting arm 542 directly drives the rotating shaft 3 to rotate synchronously. The rotation of the rotating shaft 3 drives the adjusting plate 4 fixed on it to rotate within the material drop tube 1, thereby changing the cross-sectional area of ​​the material drop channel.

[0028] Reference Figure 1-3 Among them, the part of the rotating shaft 3 located outside the material discharge tube 1 is provided with a flat key 6, and the inner side of the connecting arm 542 is provided with a small hole 7 that is adapted to the flat key 6.

[0029] With the above structural design, the flat key 6 is used to transmit high torque. During the material discharge adjustment process, the adjustment plate 4 may be subjected to the impact force and lateral pressure from the material flow above, as well as the frictional resistance with the pipe wall / material during the opening and closing process. The flat key 6 can efficiently and reliably withstand the huge torque that these resistances are converted into on the connecting arm 542, ensuring that the power can be effectively transmitted and avoiding slippage.

[0030] Reference Figure 1-3 The rear end of the material discharge pipe 1 is fixedly connected to a back plate 8, and the back plate 8 has several mounting holes 9.

[0031] With the above structural design, the entire material drop tube 1 can be rigidly fixed to a sturdy base by the back plate 8, eliminating the possible swaying or displacement of the material drop tube 1 and ensuring the spatial stability of the equipment during operation.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A blanking tube blanking amount adjusting mechanism characterized by comprising: a blanking tube; a blanking amount adjusting mechanism; and a blanking amount adjusting mechanism control unit. The device includes a discharge pipe (1), a square connector (2) is fixedly connected to the top end of the discharge pipe (1), a through hole for discharge is provided on the inner side of the square connector (2), a rotating shaft (3) is rotatably connected to the inner side of the discharge pipe (1), an adjusting plate (4) is fixedly connected to the outer side of the rotating shaft (3), and a driving assembly (5) for driving the rotating shaft (3) to rotate is provided at the bottom end of the square connector (2).

2. A blank holder rod blanking volume adjustment mechanism according to claim 1, wherein: The drive assembly (5) includes a mounting base (51). The bottom end of the square connector (2) is fixedly connected to the mounting base (51). The inner side of the mounting base (51) is fixedly connected to a cylinder (52). The inner side of the cylinder (52) is slidably connected to a cylinder push rod (53). The bottom end of the cylinder push rod (53) is provided with a conversion mechanism (54) that converts linear motion into rotation. The front end of the discharge pipe (1) is fixedly connected to a fixed seat (55). The cylinder (52) is fixedly connected to the fixed seat (55).

3. A blank holder rod blanking volume adjustment mechanism according to claim 2, wherein: The conversion mechanism (54) includes a U-shaped connector (541). The bottom end of the cylinder push rod (53) is fixedly connected to the U-shaped connector (541). The outer side of the rotating shaft (3) is fixedly connected to a connecting arm (542). A sliding hole (543) is opened on the inner side of the connecting arm (542). A pulley (544) is slidably connected to the inner side of the sliding hole (543). The pulley (544) is slidably limited and connected to the inner side of the U-shaped connector (541).

4. A blank holder rod blanking volume adjustment mechanism according to claim 3, wherein: The rotating shaft (3) is provided with a flat key (6) on the outer side of the discharge tube (1), and a small hole (7) adapted to the flat key (6) is opened on the inner side of the connecting arm (542).

5. A blank holder rod blanking volume adjustment mechanism according to claim 1, wherein: The rear end of the material drop tube (1) is fixedly connected to a back plate (8), and the back plate (8) has several mounting holes (9).

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