Stirring shaft cutting device

By using a fixed-length adjustment mechanism and a clamping and fixing device, the cutting length of the stirring shaft is precisely controlled, which solves the problem of inaccurate cutting length in the existing technology, improves cutting efficiency and processing accuracy, and ensures the performance of the stirring system.

CN224115327UActive Publication Date: 2026-04-14WUXI JINLING PHARM CHEM EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-20
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Existing agitator shaft cutting devices cannot precisely control the cutting length, resulting in deviations in the agitator shaft length, which affects the machining or assembly accuracy and consequently the performance of the agitator system.

Method used

It adopts a fixed length adjustment mechanism and clamping and fixing device. The sliding seat moves on the T-shaped slide rail. Combined with the indicator needle and scale marks, the cutting length is precisely controlled. Through the cooperation of pneumatic cylinder and electric motor, the precise position adjustment of the cutting blade and the all-round rotation cutting of the stirring shaft are realized.

Benefits of technology

It achieves precise control of the cutting length of the stirring shaft, ensuring the accuracy requirements of subsequent processing or assembly, avoiding displacement of the stirring shaft during the cutting process, and improving cutting efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of nitration machine stirring shaft machining, and particularly relates to a stirring shaft cutting device which comprises a base, a T-shaped sliding rail is fixedly connected to the base, a sliding seat is assembled on the T-shaped sliding rail, a screw hole is formed in one side wall of the sliding seat, a locking bolt is assembled in the screw hole in a rotating mode, and a clamping groove is formed in the other side wall of the sliding seat. The end of the locking bolt abuts against the outer surface of the T-shaped sliding rail, a fixing frame is fixedly connected to the top side of the sliding seat, and a pneumatic cylinder is installed on the fixing frame. When the stirring shaft is cut, the sliding seat is moved to move on the T-shaped sliding rail, then the fixing frame and the cutting knife on the top side of the sliding seat are moved, meanwhile, the pointer moves along with the sliding seat, scale marks are marked, and after the pointer moves to the required cutting length, the sliding seat is fixed to the current position through the action of the locking bolt, so that the stirring shaft is cut. By arranging the fixed-length adjusting mechanism, the cutting length of the stirring shaft can be accurately controlled, and it is guaranteed that the precision requirement of follow-up machining or assembling is met.
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Description

Technical Field

[0001] This utility model relates to the field of machining technology for stirring shafts of nitrifying machines, specifically a stirring shaft cutting device. Background Technology

[0002] A nitrifier is a specialized piece of equipment used for nitration reactions. The stirring shaft is an important component of the nitrifier. During the machining process of the stirring shaft, excess material needs to be removed through cutting to ensure that the length of the stirring shaft meets the design requirements.

[0003] Existing stirring shaft cutting devices first clamp and fix both ends of the stirring shaft using a clamping mechanism, then move the cutting blade to the desired cutting position using a guiding mechanism, and finally use a pneumatic cylinder to move the cutting blade down to contact the surface of the stirring shaft. The motor is then started to cut the stirring shaft so that its length meets the design requirements.

[0004] Existing cutting devices cannot precisely control the cutting length of the stirring shaft, resulting in deviations in the shaft's length. These deviations prevent subsequent machining or assembly from meeting precision requirements, thus affecting the performance of the entire stirring system. Therefore, a stirring shaft cutting device is proposed to address the above problems. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art and solve the problems mentioned in the background art, this utility model proposes a stirring shaft cutting device.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A stirring shaft cutting device of this utility model includes a base, a T-shaped slide rail fixedly connected to the base, a sliding seat mounted on the T-shaped slide rail, a screw hole on one side wall of the sliding seat, a locking bolt rotatably mounted in the screw hole, and the end of the locking bolt abutting against the outer surface of the T-shaped slide rail. A fixing frame is fixedly connected to the top side of the sliding seat, a pneumatic cylinder is mounted on the fixing frame, a pneumatic rod is mounted on the working end of the pneumatic cylinder, a mounting base is fixedly connected to the bottom end of the pneumatic rod, a cutting blade is mounted in the mounting base via a rotating shaft, and a [unclear - possibly a type of device] is mounted on one side wall of the mounting base. The motor's output end is connected to one end of the rotating shaft. An L-shaped rod is fixed to the other side wall of the sliding seat, and an indicator needle is installed on the L-shaped rod. A scale mark is fitted on one side wall of the T-shaped slide rail. When cutting the stirring shaft, the sliding seat is moved to move on the T-shaped slide rail, thereby moving the fixed bracket and cutting blade on its top side. At the same time, the indicator needle also moves to align with the scale mark. When the indicator needle moves to the required cutting length, the sliding seat is fixed in the current position by the locking bolt. By setting a fixed length adjustment mechanism, the cutting length of the stirring shaft can be precisely controlled to ensure that the subsequent processing or assembly accuracy requirements are met.

[0007] Preferably, a fixed support seat is installed on one side of the top of the base. Two limiting grooves are formed on the base, and a U-shaped movable seat is slidably fitted onto the two limiting grooves. A movable support seat is fixedly connected to the top of the U-shaped movable seat. Fixed rings are fixedly connected to both the fixed support seat and the movable support seat. A rotating disk is rotatably installed inside each of the two fixed rings. A fixed sleeve is fixedly connected to one side wall of the rotating disk. Four electric push rods are installed on the outer surface of the fixed sleeve. A clamping block is fixedly connected to the actuating end of each electric push rod. Two fixed plates are fixedly connected to the bottom side of the base. A threaded rod is rotatably installed on the two fixed plates, and the threaded rod passes through the U-shaped movable seat. A second electric push rod is installed on one of the fixed plates. The output end of the second motor is connected to one end of the threaded rod. Before cutting the stirring shaft, it needs to be fixed. First, insert one end of the stirring shaft into the fixed sleeve above the fixed support. Then, start the second motor to make the threaded rod rotate, forcing the U-shaped movable seat to move the movable support towards the fixed support until the fixed sleeve above the movable support moves to contact the other end of the stirring shaft. Then, stop the second motor. Next, start the electric push rod to make the clamping blocks move closer together, thereby clamping and fixing both ends of the stirring shaft. This allows for effective clamping and fixing of stirring shafts of different lengths, preventing displacement of the stirring shaft during the subsequent cutting process.

[0008] Preferably, a gear ring is fitted on one side of the rotating disk located above the fixed support base, and a first motor is installed on the top side of the fixed ring located above the fixed support base. A gear is installed at the output end of the first motor, and the gear meshes with the gear ring. During cutting, the first motor is started, causing the gear to rotate, which forces the gear ring to drive the rotating disk to rotate, thereby causing the clamped and fixed stirring shaft to rotate. This enables the stirring shaft to perform omnidirectional rotational cutting operations, greatly improving the cutting efficiency.

[0009] Preferably, a control box is provided on the base, and the control box is used to control the start and stop of the motor, electric push rod, first motor and second motor. When using the device, the control box integrates the start and stop control of the motor, electric push rod, first motor and second motor into one, integrating an advanced control system to realize the automated and intelligent control of the equipment.

[0010] The advantages of this utility model are:

[0011] 1. When cutting the stirring shaft, this utility model moves the sliding seat on the T-shaped slide rail, thereby moving the fixed bracket and cutting tool on its top side. At the same time, the indicator needle also moves to align with the scale mark. When the indicator needle moves to the required cutting length, the sliding seat is fixed in the current position by the locking bolt. By setting a fixed length adjustment mechanism, the cutting length of the stirring shaft can be precisely controlled to ensure that the accuracy requirements of subsequent processing or assembly are met.

[0012] 2. Before cutting the stirring shaft, this utility model requires fixing it. First, insert one end of the stirring shaft into the fixed sleeve above the fixed support. Then, start the second motor to rotate the threaded rod, forcing the U-shaped movable seat to move the movable support towards the fixed support until the fixed sleeve above the movable support moves to contact the other end of the stirring shaft. Then, stop the second motor and start the electric push rod to bring the clamping blocks closer together, thereby clamping and fixing both ends of the stirring shaft. This allows for effective clamping and fixing of stirring shafts of different lengths, preventing displacement of the stirring shaft during the subsequent cutting process. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a side view of the overall three-dimensional structure of the device;

[0015] Figure 2 This is a schematic diagram of the overall left-side three-dimensional structure of the device;

[0016] Figure 3 This is a schematic diagram of the three-dimensional structure of the base bottom component;

[0017] Figure 4 This is a schematic diagram of the three-dimensional structure of the cutting mechanism;

[0018] Figure 5 This is a left-side three-dimensional structural diagram of the cutting mechanism;

[0019] Figure 6 A schematic diagram of the three-dimensional structure of the movable support base assembly;

[0020] Figure 7 A three-dimensional structural diagram of the fixed support assembly;

[0021] Figure 8 This is a schematic diagram of the three-dimensional structure of the clamping mechanism;

[0022] In the diagram: 1. Base; 2. T-shaped slide rail; 3. Sliding seat; 4. Locking bolt; 5. Fixing frame; 6. Pneumatic cylinder; 7. Pneumatic rod; 8. Mounting seat; 9. Cutting blade; 10. Motor; 11. L-shaped rod; 12. Indicator needle; 13. Scale mark; 14. Fixed support seat; 15. Limiting slide groove; 16. U-shaped movable seat; 17. Movable support seat; 18. Fixing ring; 19. Rotary disk; 20. Fixing sleeve; 21. Electric push rod; 22. Clamping block; 23. Gear ring; 24. First electric motor; 25. Gear; 26. Fixing plate; 27. Threaded rod; 28. Second electric motor. Detailed Implementation

[0023] 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 scope of protection of the present utility model.

[0024] Please see Figure 1-2 and Figure 4-5As shown, a stirring shaft cutting device includes a base 1, a T-shaped slide rail 2 fixedly connected to the base 1, a sliding seat 3 mounted on the T-shaped slide rail 2, a screw hole on one side wall of the sliding seat 3, a locking bolt 4 rotatably mounted in the screw hole, and the end of the locking bolt 4 abutting against the outer surface of the T-shaped slide rail 2, a fixing frame 5 fixedly connected to the top side of the sliding seat 3, a pneumatic cylinder 6 mounted on the fixing frame 5, a pneumatic rod 7 mounted on the actuating end of the pneumatic cylinder 6, a mounting base 8 fixedly connected to the bottom end of the pneumatic rod 7, a cutting blade 9 mounted in the mounting base 8 through a rotating shaft, a motor 10 mounted on one side wall of the mounting base 8, the output end of the motor 10 connected to one end of the rotating shaft, and the other side wall of the sliding seat 3... An L-shaped rod 11 is fixedly connected to the top, and an indicator needle 12 is installed on the L-shaped rod 11. A scale mark 13 is installed on one side wall of the T-shaped slide rail 2. During operation, when cutting the stirring shaft, after the two ends of the stirring shaft are clamped and fixed, the sliding seat 3 is moved to move it on the T-shaped slide rail 2, thereby moving the fixed frame 5 and the cutting blade 9 on its top side. At the same time, the indicator needle 12 also moves to align with the scale mark 13. When the indicator needle 12 moves to the required cutting length, the sliding seat 3 is fixed in the current position by the action of the locking bolt 4. By setting a fixed length adjustment mechanism, the cutting length of the stirring shaft can be precisely controlled to ensure that the subsequent processing or assembly accuracy requirements are met.

[0025] After the position of the cutting blade 9 is adjusted, when cutting, the pneumatic cylinder 6 is activated to move the pneumatic rod 7 to move the cutting blade 9 down to contact the stirring shaft and embed it into the stirring shaft. Then, the motor 10 is activated to make the cutting blade 9 rotate. At the same time, the first motor 24 is activated and the gear 25 rotates, which forces the gear ring 23 to drive the rotating disk 19 to rotate, thereby making the stirring shaft, which is clamped and fixed, rotate. This allows for all-round rotational cutting of the stirring shaft, greatly improving the cutting efficiency.

[0026] Please see Figure 1-3 and Figure 6-8As shown, a fixed support seat 14 is installed on one side of the top of the base 1. Two limiting slide grooves 15 are opened on the base 1. A U-shaped movable seat 16 is slidably assembled in the two limiting slide grooves 15. A movable support seat 17 is fixedly connected to the top of the U-shaped movable seat 16. Fixed rings 18 are fixedly connected to both the fixed support seat 14 and the movable support seat 17. A rotating disk 19 is rotatably installed in each of the two fixed rings 18. A fixed sleeve 20 is fixedly connected to one side wall of the rotating disk 19. Four electric push rods 21 are installed on the outer surface of the fixed sleeve 20. A clamping block 22 is fixedly connected to the working end of each electric push rod 21. Two fixed plates 26 are fixedly connected to the bottom side of the base 1. A threaded rod 27 is rotatably installed on the two fixed plates 26 and passes through the U-shaped movable seat 16. A second motor 28 is installed on one of the fixed plates 26. The output end of the second motor 28 is connected to one end of the threaded rod 27. The base 1 is provided with A control box is provided, which is used to control the start and stop of the motor 10, the electric push rod 21, the first motor 24 and the second motor 28. During operation, before cutting the stirring shaft, it needs to be fixed. First, one end of the stirring shaft is inserted into the fixed sleeve 20 above the fixed support 14. Then, the second motor 28 is started, causing the threaded rod 27 to rotate, which forces the U-shaped movable seat 16 to move within the limiting slide groove 15. The U-shaped movable seat 16 drives the movable support 17 to move towards the fixed support 14 until the fixed sleeve 20 above the movable support 17 moves to contact the other end of the stirring shaft. The second motor 28 stops working. Then, the electric push rod 21 is started, causing the clamping blocks 22 to move closer together, thereby clamping and fixing both ends of the stirring shaft. This allows for effective clamping and fixing of stirring shafts of different lengths, preventing displacement of the stirring shaft during the subsequent cutting process.

[0027] A gear ring 23 is fitted on one side of the rotating disk 19 located above the fixed support base 14. A first motor 24 is installed on the top side of the fixed ring 18 located above the fixed support base 14. A gear 25 is installed at the output end of the first motor 24, and the gear 25 meshes with the gear ring 23. During operation, when cutting, the first motor 24 is started, causing the gear 25 to rotate, which forces the gear ring 23 to drive the rotating disk 19 to rotate, thereby causing the clamped and fixed stirring shaft to rotate. This enables the stirring shaft to perform omnidirectional rotational cutting operations, greatly improving the cutting efficiency.

[0028] Working Principle: Existing cutting devices cannot precisely control the cutting length of the stirring shaft, resulting in deviations in the shaft's length. These deviations prevent subsequent processing or assembly from meeting precision requirements, thus affecting the performance of the entire stirring system. Therefore, a stirring shaft cutting device is proposed to address this problem. Before cutting the stirring shaft, it needs to be fixed. First, one end of the stirring shaft is inserted into the fixed sleeve 20 above the fixed support 14. Then, the second motor 28 is started, causing the threaded rod 27 to rotate, forcing the U-shaped movable seat 16 to move within the limiting groove 15. The U-shaped movable seat 16 drives the movable support 17 to move towards the fixed support 14 until the fixed sleeve 20 above the movable support 17 moves to contact the other end of the stirring shaft. The second motor 28 then stops operating. Next, the electric push rod 21 is started, causing the clamping blocks 22 to move closer together, thereby clamping and fixing both ends of the stirring shaft. This effectively clamps and fixes stirring shafts of different lengths, preventing displacement of the stirring shaft during the subsequent cutting process.

[0029] After both ends of the stirring shaft are clamped and fixed, when the stirring shaft is cut, the sliding seat 3 is moved to move on the T-shaped slide rail 2, thereby moving the fixed bracket 5 and the cutting blade 9 on its top side. At the same time, the indicator needle 12 also moves to align with the scale mark 13. When the indicator needle 12 moves to the required cutting length, the sliding seat 3 is fixed in the current position by the action of the locking bolt 4. By setting a fixed length adjustment mechanism, the cutting length of the stirring shaft can be precisely controlled to ensure that the subsequent processing or assembly accuracy requirements are met.

[0030] After the position of the cutting blade 9 is adjusted, when cutting, the pneumatic cylinder 6 is activated to move the pneumatic rod 7 to move the cutting blade 9 down to contact the stirring shaft and embed it into the stirring shaft. Then, the motor 10 is activated to make the cutting blade 9 rotate. At the same time, the first motor 24 is activated and the gear 25 rotates, which forces the gear ring 23 to drive the rotating disk 19 to rotate, thereby causing the stirring shaft, which is clamped and fixed, to rotate. This allows for all-round rotational cutting of the stirring shaft, greatly improving the cutting efficiency.

[0031] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A stirring shaft cutting device, characterized in that: The system includes a base (1), on which a T-shaped slide rail (2) is fixedly connected. A sliding seat (3) is mounted on the T-shaped slide rail (2). A screw hole is provided on one side wall of the sliding seat (3), and a locking bolt (4) is rotatably mounted in the screw hole. The end of the locking bolt (4) abuts against the outer surface of the T-shaped slide rail (2). A fixing frame (5) is fixedly connected to the top side of the sliding seat (3). A pneumatic cylinder (6) is mounted on the fixing frame (5). The working end of the pneumatic cylinder (6) is equipped with a pneumatic... The pneumatic rod (7) has a mounting base (8) fixedly connected to its bottom end. A cutting tool (9) is installed in the mounting base (8) through a rotating shaft. A motor (10) is installed on one side wall of the mounting base (8). The output end of the motor (10) is connected to one end of the rotating shaft. An L-shaped rod (11) is fixedly connected to the other side wall of the sliding seat (3). An indicator needle (12) is installed on the L-shaped rod (11). A scale mark (13) is assembled on one side wall of the T-shaped slide rail (2).

2. The stirring shaft cutting device according to claim 1, characterized in that: A fixed support seat (14) is installed on one side of the top of the base (1). Two limiting slide grooves (15) are opened on the base (1). The two limiting slide grooves (15) are slidably fitted with a U-shaped movable seat (16). A movable support seat (17) is fixedly connected to the top of the U-shaped movable seat (16). A fixing ring (18) is fixedly connected to both the fixed support seat (14) and the movable support seat (17).

3. The stirring shaft cutting device according to claim 2, characterized in that: A rotating disk (19) is rotatably installed inside each of the two fixed rings (18). A fixed sleeve (20) is fixedly connected to one side wall of the rotating disk (19). Four electric push rods (21) are installed on the outer surface of the fixed sleeve (20). A clamping block (22) is fixedly connected to the working end of each electric push rod (21).

4. The stirring shaft cutting device according to claim 2, characterized in that: A gear ring (23) is fitted on one side of the rotating disk (19) located above the fixed support (14). A first motor (24) is installed on the top side of the fixed ring (18) located above the fixed support (14). A gear (25) is installed at the output end of the first motor (24), and the gear (25) meshes with the gear ring (23).

5. The stirring shaft cutting device according to claim 1, characterized in that: The base (1) has two fixed plates (26) fixed to its bottom side. The two fixed plates (26) are fitted with threaded rods (27) that rotate together. The threaded rods (27) pass through the U-shaped movable seat (16). A second motor (28) is installed on one of the fixed plates (26). The output end of the second motor (28) is connected to one end of the threaded rod (27).

6. The stirring shaft cutting device according to claim 1, characterized in that: A control box is provided on the base (1), and the control box is used to control the start and stop of the motor (10), electric push rod (21), first motor (24) and second motor (28).