A cylinder combined back-off husker

Abstract

This utility model relates to the field of rice hulling technology, and more particularly to a rice hulling machine with a retractable cylinder. It includes a rice huller with a motor mount fixedly installed on its side. A servo motor and a positioning block are fixedly installed on the back of the motor mount. A ball screw is provided at the front end of the output end of the servo motor, passing through to the front of the positioning block. A sensor is fixedly installed on the side of the positioning block, with a sensing head at its front end. A precision perforated coupling connects the ball screw and the output end of the servo motor. A cylinder seat is fixedly installed on the lower side of the motor mount, and a cylinder is fixedly installed on the rear side of the cylinder seat. The output end of the cylinder slides through to the front of the cylinder seat. A fast roller is rotatably installed on the side of the rice huller, and a slow roller is slidably installed on the side of the rice huller. This utility model, through the cooperation of its components, can more accurately remove the rice husks while retaining more intact rice grains, reducing the broken rice rate.

Description

Technical Field

[0001] This utility model relates to the field of rice hulling machine technology, and in particular to a rice hulling machine with a retractable cylinder. Background Technology

[0002] In the rice processing industry, rice hullers are key equipment for removing rice husks. Their performance directly affects the quality of rice and processing efficiency. Currently, most rice hullers on the market rely on the relative movement of rubber rollers (fast rollers and slow rollers) to complete the hulling operation. Controlling the gap between the rubber rollers is the core factor in ensuring the hulling effect.

[0003] However, existing rice hullers have significant shortcomings in the process of rubber roller closing and gap adjustment: on the one hand, it is difficult to accurately locate the gapless base point when closing the rollers, resulting in large gap adjustment errors and affecting the accuracy of rice hulling; on the other hand, after the cylinder pushes the rollers to close, there is a lack of an effective retraction and pressure-holding positioning mechanism, which easily leads to fluctuations in the rubber roller gap due to unstable pressure, resulting in problems such as high broken rice rate and damage to rice grain integrity, making it difficult to meet the requirements of high-quality rice processing. Therefore, there is an urgent need for a rice huller structure that can achieve precise control of the rubber roller gap, stable pressure holding, and flexible adjustment to improve hulling quality and processing stability.

[0004] To solve the above problems, we propose a rice huller with cylinder retraction. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a rice huller with a retractable cylinder.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A rice huller with cylinder retraction includes a rice huller, a motor base fixedly mounted on the side of the rice huller; a servo motor and a positioning block fixedly mounted on the back of the motor base; a ball screw is provided at the front end of the output end of the servo motor, the ball screw passes through to the front side of the positioning block; a sensor is fixedly mounted on the side of the positioning block, a sensing head is provided at the front end of the sensor; a precision perforated coupling connects the ball screw and the output end of the servo motor; a cylinder base is fixedly mounted on the lower side of the motor base, a cylinder is fixedly mounted on the rear side of the cylinder base, and the output end of the cylinder slides through to the front side of the cylinder base.

[0008] Furthermore, a fast roller is rotatably mounted on the side of the rice huller, and a slow roller is slidably mounted on the side of the rice huller.

[0009] Furthermore, a limiting seat is fixedly installed on the upper side of the slow roller, and the front side of the cylinder output end is fixedly connected to the limiting seat.

[0010] Furthermore, a ball nut is fixedly installed at the middle position of the positioning block, and the ball nut is screwed onto the outside of the ball screw.

[0011] Furthermore, guide posts slide through the four corners of the positioning block, and the guide posts are fixedly installed on the front side of the motor base.

[0012] Furthermore, the rice huller is equipped with a PLC controller.

[0013] Furthermore, a four-position five-way solenoid valve is fixedly installed on the cylinder.

[0014] Compared with related technologies, the rice huller with cylinder retraction proposed in this utility model has the following beneficial effects:

[0015] In this utility model, a rice huller with a retractable cylinder is described. Each time the rice huller cylinder pushes the rubber roller to close, when the closed roller is in place, the pressure gauge used to detect the pressure of the rice huller cylinder outputs a feedback signal. When the PLC receives the feedback signal, the PLC outputs a pulse to retract the cylinder slightly. A four-position five-way solenoid valve is used to maintain the air pressure and position the cylinder. This allows for more precise hulling of rice while retaining the rice grains more completely, effectively reducing the broken rice rate. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of a rice huller with cylinder retraction proposed in this utility model;

[0017] Figure 2 This is a front view of a rice huller with cylinder retraction proposed in this utility model;

[0018] Figure 3 This is a rear view of a rice huller with a retractable cylinder according to the present invention.

[0019] Figure 4 This is a top view of a rice huller with a retractable cylinder according to the present invention.

[0020] In the diagram: 1. Motor base; 2. Servo motor; 3. Precision plum blossom coupling; 4. Cylinder; 5. Positioning block; 6. Sensor; 7. Cylinder base; 8. Fast roller; 9. Slow roller; 10. Ball nut; 11. Guide post; 12. Ball screw; 13. Rice huller; 14. Limit seat. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Reference Figures 1-4A rice huller with cylinder retraction: comprising a rice huller 13, a motor base 1 fixedly mounted on the side of the rice huller 13; a servo motor 2 and a positioning block 5 fixedly mounted on the back of the motor base 1; a ball screw 12 is provided at the front end of the output end of the servo motor 2, the ball screw 12 passes through to the front side of the positioning block 5; a sensor 6 is fixedly mounted on the side of the positioning block 5, a sensing head is provided at the front end of the sensor 6; a precision plum blossom coupling 3 connects the ball screw 12 and the output end of the servo motor 2; a cylinder base 7 is fixedly mounted on the lower side of the motor base 1; a cylinder 4 is fixedly mounted on the rear side of the cylinder base 7; the output end of the cylinder 4 slides through to the front side of the cylinder base 7; a fast roller 8 is rotatably mounted on the side of the rice huller 13; and a slow roller 9 is slidably mounted on the side of the rice huller 13.

[0023] In this method, a limiting seat 14 is fixedly installed on the upper side of the slow roller 9, and the front side of the output end of the cylinder 4 is fixedly connected to the limiting seat 14.

[0024] With the above configuration, cylinder 4 can drive the slow roller 9 to move when it starts.

[0025] In this method, a ball nut 10 is fixedly installed in the middle of the positioning block 5, and the ball nut 10 is screwed onto the outside of the ball screw 12.

[0026] With the above configuration, when the ball screw 12 rotates under the drive of the servo motor 2, it drives the ball nut 10 through the thread to move the positioning block 5, which in turn drives the sensor 6 to move.

[0027] In this method, the positioning block 5 slides through the guide post 11 at the four corners, and the guide post 11 is fixedly installed on the front side of the motor base 1.

[0028] By setting the guide post 11 in the above manner, the stability of the positioning block 5 when it moves can be improved.

[0029] In this method, a PLC controller is installed on the rice huller 13.

[0030] With the above settings, the PLC controller can provide control functions.

[0031] In this configuration, a four-position five-way solenoid valve is fixedly installed on cylinder 4.

[0032] With the above configuration, the four-position five-way solenoid valve can maintain the air pressure and position the cylinder 4. Common electrical components are used, which will not be described in detail here.

[0033] The working principle of the rice huller with cylinder retraction provided by this utility model is as follows:

[0034] During operation, when the rice huller starts normally, cylinder 4 begins to work, causing the slow roller 9 to quickly close towards the fast roller 8. When the slow roller 9 closes towards the fast roller 8 without any gap, servo motor 2 starts to work, causing ball screw 12 to rotate clockwise, pushing ball nut 10 and sensor 6 towards the slow roller 9. When the sensing head on the front side of sensor 6 reaches the limit seat 14 on the slow roller 9, sensor 6 sends a signal to the PLC controller, causing servo motor 2 to stop working, and ball nut 10 and sensor 6 to stop. This position is the base point for the fast roller 8 and slow roller 9 to close without any gap. At this time, the PLC controller sends a signal to servo motor 2 again to make it work a second time, causing ball nut 10 to push towards the slow roller 9, so that the fast roller 8 and slow roller 9 separate from the closed state without gap to a specific distance with a gap.

[0035] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A combined cylinder back-off husking machine characterized by, Includes a rice huller (13), on the side of which a motor mount (1) is fixedly installed; A servo motor (2) and a positioning block (5) are fixedly installed on the back of the motor base (1). A ball screw (12) is provided at the front end of the output end of the servo motor (2). The ball screw (12) passes through to the front side of the positioning block (5). A sensor (6) is fixedly installed on the side of the positioning block (5). A sensing head is provided at the front end of the sensor (6). A precision plum blossom coupling (3) is connected between the ball screw (12) and the output end of the servo motor (2). A cylinder seat (7) is fixedly installed on the lower side of the motor base (1). A cylinder (4) is fixedly installed on the rear side of the cylinder seat (7). The output end of the cylinder (4) slides through to the front side of the cylinder seat (7).

2. A cylinder de-rolling husking machine according to claim 1, characterized in that, The rice huller (13) is rotatably mounted on the side with a fast roller (8) and the rice huller (13) is slidably mounted on the side with a slow roller (9).

3. A cylinder de-rolling husking machine according to claim 2, characterized in that, The upper side of the slow roller (9) is fixedly installed with a limiting seat (14), and the front side of the output end of the cylinder (4) is fixedly connected to the limiting seat (14).

4. A cylinder de-rolling husking machine according to claim 1, characterized in that, A ball nut (10) is fixedly installed in the middle of the positioning block (5), and the ball nut (10) is screwed onto the outside of the ball screw (12).

5. A cylinder de-rolling husking machine according to claim 1, characterized in that, The positioning block (5) slides through the guide post (11) at the four corners, and the guide post (11) is fixedly installed on the front side of the motor base (1).

6. A cylinder de-rolling husking machine according to claim 1, characterized in that, The rice huller (13) is equipped with a PLC controller.

7. A cylinder de-rolling husking machine according to claim 1, characterized in that, A four-position five-way solenoid valve is fixedly installed on the cylinder (4).

Images