Pull rod type discharge door

Abstract

The utility model discloses a pull rod type discharging door which comprises a stirring machine and an arc plate, the arc plate is installed on the outer side of the stirring machine, a discharging device used for controlling the stirring machine to conduct discharging is arranged at the position of a discharging opening in the bottom of the arc plate, and a protruding plate is installed on the inner wall of the discharging door. The size and thickness of the convex plate are the same as those of the notch at the discharge port at the bottom of the arc plate. The pull rod type discharge door provides a more uniform material distribution mode for single-machine double-line production of a mixing station, saves the station building cost, improves the single-machine utilization rate of a mixer, has the advantage of simple structure, and is driven by a simple pull rod to realize the synchronism of double discharge doors and the stability of door opening and closing; the use amount of hydraulic or pneumatic execution elements and the use amount of limiting electronic sensors are saved, and the manufacturing cost is saved.

Description

Technical Field

[0001] This utility model relates to the technical field of mixer unloading gates, specifically a lever-type unloading gate. Background Technology

[0002] In the twin-shaft dry powder mixing and twin-shaft concrete industries, there are situations where a single mixer supplies power to two production lines simultaneously. This necessitates that the twin-shaft mixer have two discharge gates to correspond to each of the two production lines, each with identical operational requirements. Therefore, it is crucial to ensure that the discharge capacity of both discharge gates is essentially the same. Traditional designs typically require two separate sets of hydraulic or pneumatic cylinders to control the opening and closing angles of the two discharge gates, which not only increases costs but also adds to the system's complexity.

[0003] Chinese patent CN206937649U discloses a material-dividing unloading gate device and a mixer, thereby achieving the function of "one machine for two production lines". This design allows for a compact layout of the production lines, reducing the equipment footprint and lowering equipment costs. However, while this patent provides a new method for opening the unloading gate, it does not address the issues of synchronous control of the unloading gate and consistency of unloading volume.

[0004] Therefore, it is necessary to design a lever-type unloading gate to solve this problem. By eliminating a set of hydraulic cylinders or air cylinders (normally a long unloading gate requires a set of hydraulic cylinders or air cylinders to ensure smooth operation), only one set of hydraulic cylinders or air cylinders is needed to achieve precise control of the two unloading gates, while ensuring the synchronization of the two unloading gates. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a lever-type discharge gate, solving the challenges encountered when operating two discharge gates simultaneously in a twin-shaft mixer. It ensures that the opening and closing actions of the two discharge gates are completely synchronized, thereby guaranteeing the same discharge volume from both gates. This consistency ensures uniform material mixing on both production lines, improving the efficiency and quality of the mixing process. Furthermore, it reduces the use of hydraulic or pneumatic actuators and limit sensors, thus lowering overall manufacturing and operating costs.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a pull-rod type unloading gate, including a mixer and an arc plate, wherein an arc-shaped arc plate is installed on the outside of the mixer, and an unloading device for controlling the mixer to unload materials is provided at the bottom unloading opening of the arc plate;

[0007] The unloading device includes a cylinder pin, a cylinder mounting base, a cylinder, a cylinder directional plate, a Y-shaped end plug, a pull rod a, a pull rod b, a sliding shaft, a sensor switch mounting bracket, a sensor switch, a support rod, a sensor block, a hook key, a bearing with a seat, an unloading gate pivot, an unloading gate handle, and an unloading gate. The cylinder mounting base is installed on the front side wall of the mixer. The upper end of the cylinder is installed on the cylinder mounting base via the cylinder pin. The cylinder directional plate, used for locking and fixing the cylinder, is installed on the front side wall of the arc plate and locked on the outside of the cylinder. The Y-shaped end plug is installed on the bottom output end of the cylinder via threads. Both ends of the unloading gate pivot are connected to the cylinder via bearings with seats. The discharge port is installed at the bottom of the mixer. A discharge gate handle is installed on the outer wall of the discharge gate shaft. The discharge gate handle extends to the discharge opening at the bottom of the arc plate, where the discharge gate is installed. Pull rods a and b are installed to the ends of the two discharge gate shafts respectively via hooks and inclined keys. The tops of pull rods a and b are assembled to the bottom of the Y-shaped end plug via sliding shafts. The sensing block is installed at the end of the discharge gate shaft and outside the pull rod b. The induction switch mounting bracket is installed on the surface of the mixer and outside the induction block via a support rod. The induction switch for detecting the deflection angle of the induction block is installed inside the induction switch mounting bracket.

[0008] Preferably, both the arc plate and the unloading gate are arc-shaped, and the unloading gate is adapted to the unloading port at the bottom of the arc plate.

[0009] Preferably, the upper surfaces of both pull rod a and pull rod b are provided with elongated movable slots, through which the sliding shaft passes.

[0010] Preferably, the inductive switch is electrically connected to the controller of the hydraulic cylinder via a wire.

[0011] Preferably, the inner wall of the unloading gate is equipped with a protruding plate, the size and thickness of which are the same as the notch at the bottom of the arc plate where the unloading port is located.

[0012] Preferably, a slot is provided at the end of the unloading gate shaft, a slot is provided at the position where the pull rod b is sleeved with the unloading gate shaft, and the hook head is inserted into the slots provided in the pull rod b and the unloading gate shaft.

[0013] Compared with the prior art, the present invention provides a lever-type unloading gate, which has the following advantages:

[0014] 1. This lever-type unloading gate provides a more uniform material distribution method for single-machine dual-line production in the mixing plant, saving construction costs and improving the utilization rate of the mixer.

[0015] 2. This lever-type unloading gate has a reasonable structure and is easy to use. The lever drives the unloading gate to achieve synchronization of the two unloading gates and stability of opening and closing, saving the amount of hydraulic or pneumatic actuators and limit electronic sensors, thus saving manufacturing costs. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the mixer assembly for a lever-type unloading gate according to the present invention;

[0017] Figure 2 This is a schematic diagram of the opening and closing of a lever-type unloading gate according to the present invention;

[0018] Figure 3 This is an exploded view of the structure of the pull-rod type unloading gate described in this utility model.

[0019] The markings in the attached diagram are described below:

[0020] 1. Arc plate; 2. Hydraulic cylinder pin; 3. Hydraulic cylinder mounting base; 4. Hydraulic cylinder; 5. Hydraulic cylinder guide plate; 6. Y-type end plug; 7. Pull rod a; 8. Pull rod b; 9. Sliding shaft; 10. Induction switch mounting bracket; 11. Switch; 12. Support rod; 13. Induction block; 14. Hook head inclined key; 15. Bearing with seat; 16. Unloading gate pivot; 17. Unloading gate handle; 18. Unloading gate. 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 description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0023] Please see Figure 1-3 This utility model provides a lever-type unloading gate, including a mixer and an arc plate 1. An arc-shaped arc plate 1 is installed on the outside of the mixer, and an unloading device for controlling the mixer to unload is provided at the bottom unloading opening of the arc plate 1.

[0024] The unloading device includes cylinder pin 2, cylinder mounting base 3, cylinder 4, cylinder guide plate 5, Y-shaped end insert 6, pull rod a 7, and pull rod b. 8. Sliding shaft; 9. Induction switch mounting bracket; 10. Induction switch; 11. Support rod; 12. Induction block; 13. Hook key; 14. Bearing with seat; 15. Discharge gate pivot; 16. Discharge gate handle; 17. Discharge gate; 18. Cylinder mounting base 3 is installed on the front side wall of the mixer. The upper end of cylinder 4 is installed on cylinder mounting base 3 via cylinder pin 2. Cylinder guide plate 5, used for locking and fixing cylinder 4, is installed on the front side wall of arc plate 1 and locked on the outside of cylinder 4. Y-type end plug 6 is installed on the bottom output end of cylinder 4 via thread. Both ends of discharge gate pivot 16 are installed on the discharge port position at the bottom of the mixer via bearing with seat 15. Discharge gate handle 17 is installed on the outer wall of discharge gate pivot 16. Discharge gate handle 17 extends to the discharge opening position at the bottom of arc plate 1 and discharge gate 18 is installed. Pull rod a 7 and pull rod b 8 is installed at the ends of the two discharge gate shafts 16 via hooks and inclined keys 14. The top ends of pull rods a 7 and b 8 are assembled with the bottom end of the Y-shaped end plug 6 via sliding shafts 9. The sensing block 13 is installed at the end of the discharge gate shaft 16 and outside the pull rod b 8. The induction switch mounting bracket 10 is installed on the surface of the mixer via support rods 12 and outside the induction block 13. The induction switch 11 for detecting the deflection angle of the induction block 13 is installed inside the induction switch mounting bracket 10.

[0025] Furthermore, both the arc plate 1 and the discharge gate 18 are arc-shaped. The discharge gate 18 is adapted to the discharge port at the bottom of the arc plate 1. The discharge gate 18 blocks the discharge opening at the bottom of the arc plate 1, so that the mixer can carry out normal mixing work when not discharging.

[0026] Furthermore, the upper surfaces of both pull rod a 7 and pull rod b 8 are provided with elongated movable slots. The sliding shaft 9 passes through the elongated movable slots. When the bottom of the oil cylinder 4 drives the Y-shaped end insert 6 to move downward, the Y-shaped end insert 6 presses the movable ends of pull rod a 7 and pull rod b 8 downward through the sliding shaft 9. During the deflection process, the Y-shaped end insert 6 moves along the inside of the elongated movable slot.

[0027] Furthermore, the induction switch 11 is electrically connected to the controller of the hydraulic cylinder 4 via a wire. During the process of the pull rod b 8 driving the unloading gate shaft 16 to deflect, the unloading gate shaft 16 drives the induction block 13 to deflect. After the induction block 13 deflects to a specified angle, it triggers the induction switch 11. The induction switch 11 controls the hydraulic cylinder 4 to stop rotating. Thus, the induction switch 11 limits the rotation of the unloading gate shaft 16 and controls the angle when the unloading gate 18 opens and closes, improving the accuracy of opening and closing and improving the sealing effect when the unloading gate 18 is closed.

[0028] Furthermore, a protruding plate is installed on the inner wall of the discharge gate 18. The size and thickness of the protruding plate are the same as the notch at the bottom discharge port of the arc plate 1. When the discharge gate 18 is closed, the protruding plate on its inner side extends into the bottom discharge port of the arc plate 1, so that the raw material can smoothly roll and move along the inner wall of the arc plate 1 under the support of the protruding plate during the mixing process, thereby preventing the presence of a mixing dead angle at the discharge port position from affecting the mixing effect.

[0029] Furthermore, a slot is provided at the end of the unloading gate pivot 16, and a slot is provided at the position where the pull rod b 8 is sleeved with the unloading gate pivot 16. The hook key 14 is inserted into the slots provided in the pull rod b 8 and the unloading gate pivot 16. When the pull rod b 8 deflects, it drives the unloading gate pivot 16 to rotate through the hook key 14.

[0030] During operation, when the discharge gate 18 is opened, the control cylinder 4 extends, causing the Y-shaped end insert 6 to move downwards. The downward movement of the Y-shaped end insert 6 pushes the movable ends of pull rods a 7 and b 8 downwards via the sliding shaft 9. Pull rod b 8, through the hook key 14, drives the discharge gate shaft 16 to rotate. The discharge gate shaft 16 drives the discharge gate handle 17 to rotate, which in turn drives the discharge gate 18 downwards. This releases the seal on the discharge port at the bottom of the arc plate 1. Simultaneously, pull rod a 7 causes the discharge gate 18 at the rear to flip downwards, opening both discharge ports simultaneously. This allows a single mixer to supply material to the outside through two ports. After discharge, the control cylinder 4 retracts, causing the Y-shaped end insert 6 to move upwards. The Y-shaped end insert 6, through the sliding shaft 9, pulls the movable ends of pull rods a 7 and b 8 upwards. During the upward deflection process, the unloading gate shaft 16 is driven to rotate in the opposite direction. The unloading gate shaft 16 drives the unloading gate 18 to rotate upward through the unloading gate handle 17, so that the unloading gate 18 moves to the bottom of the arc plate 1 below the unloading port to block the unloading port. After the unloading gate 18 moves into the unloading port, the unloading gate shaft 16 drives the sensing block 13 to deflect to contact the sensing switch 11 and trigger the sensing switch 11, automatically controlling the oil cylinder 4 to stop rotating, thereby completing the work of closing the unloading port.

[0031] 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 lever-type unloading gate, comprising a mixer and an arc plate (1), characterized in that: An arc-shaped circular arc plate (1) is installed on the outside of the mixer, and a discharge device for controlling the mixer to discharge is provided at the bottom discharge opening of the circular arc plate (1). The unloading device includes a cylinder pin (2), a cylinder mounting base (3), a cylinder (4), a cylinder guide plate (5), a Y-shaped end plug (6), a pull rod a (7), a pull rod b (8), a sliding shaft (9), an induction switch mounting bracket (10), an induction switch (11), a support rod (12), an induction block (13), a hook key (14), a bearing with a seat (15), an unloading gate pivot (16), an unloading gate handle (17), and an unloading gate (18). The cylinder mounting base (3) is installed on the front side wall of the mixer. The upper end of the cylinder (4) is installed on the cylinder mounting base (3) through the cylinder pin (2). The cylinder guide plate (5), which is used to clamp and fix the cylinder (4), is installed on the front side wall of the arc plate (1) and clamped on the outside of the cylinder (4). The Y-shaped end plug (6) is installed on the bottom output end of the cylinder (4) through a thread.

2. The lever-type unloading gate according to claim 1, characterized in that: The two ends of the discharge gate shaft (16) are installed at the discharge port position at the bottom of the mixer through seated bearings (15). The outer wall of the discharge gate shaft (16) is equipped with a discharge gate handle (17). The discharge gate handle (17) extends to the discharge opening position at the bottom of the arc plate (1) and a discharge gate (18) is installed thereon.

3. A lever-type unloading gate according to claim 1, characterized in that: The pull rods a (7) and b (8) are respectively installed at the ends of the two unloading gate pivots (16) via hook key (14), and the top ends of the pull rods a (7) and b (8) are assembled with the bottom end of the Y-shaped end plug (6) via sliding shaft (9).

4. A lever-type unloading gate according to claim 1, characterized in that: The sensing block (13) is installed at the end of the unloading gate pivot (16) and outside the pull rod b (8). The sensing switch mounting bracket (10) is installed on the surface of the mixer through the support rod (12) and outside the sensing block (13). The sensing switch (11) for detecting the deflection angle of the sensing block (13) is installed inside the sensing switch mounting bracket (10).

5. A lever-type unloading gate according to claim 1, characterized in that: Both the arc plate (1) and the unloading gate (18) are arc-shaped, and the unloading gate (18) is adapted to the unloading port at the bottom of the arc plate (1).

6. A lever-type unloading gate according to claim 1, characterized in that: The upper surfaces of both the pull rod a (7) and the pull rod b (8) are provided with elongated movable slots, through which the sliding shaft (9) passes.

7. A lever-type unloading gate according to claim 1, characterized in that: The inductive switch (11) is electrically connected to the controller of the hydraulic cylinder (4) via a wire.

8. A lever-type unloading gate according to claim 1, characterized in that: The inner wall of the unloading gate (18) is equipped with a convex plate, the size and thickness of which are the same as the notch at the bottom of the arc plate (1).

9. A lever-type unloading gate according to claim 1, characterized in that: The end of the unloading gate pivot (16) is provided with a slot, and the position where the pull rod b (8) is sleeved with the unloading gate pivot (16) is provided with a slot. The hook key (14) is inserted into the slots provided by the pull rod b (8) and the unloading gate pivot (16).

Images