Straightening and cutting machine for air valve steel rods
By using a straightening motor and a top pressure roller for positioning, the problem of offset of the valve steel bar during cutting was solved, improving production safety and efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TAIZHOU CHANGYING METAL PROD CO LTD
- Filing Date
- 2025-06-25
- Publication Date
- 2026-06-12
AI Technical Summary
The existing valve steel bars lack straightening and positioning during cutting, leading to misalignment and safety hazards, and affecting production efficiency.
A straightening motor drives the straightening roller to rotate, and the steel bar of the valve is positioned by the cooperation of the straightening roller and the top pressure roller. The adjusting motor drives the top pressure roller to move down to ensure that the steel bar does not deviate during feeding.
This achieves effective positioning of the valve steel bar, avoiding offset and errors, and improving the safety and efficiency of production operations.
Smart Images

Figure CN224346675U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of wire rope processing equipment, and more specifically, to a straightening and cutting machine for air valve steel bars. Background Technology
[0002] Valve steel bars are mainly used in valve components of internal combustion engines. Their quality and performance have a crucial impact on the operating efficiency and lifespan of internal combustion engines. These components operate in high-temperature, high-pressure, and high-speed environments, requiring extremely high material performance. Valve steel bars can also be used to manufacture other mechanical components that need to withstand high-temperature, high-pressure, and corrosive environments. Straightening and cutting machines are mechanical equipment that integrates straightening and cutting functions and are widely used in many industries such as metal processing, building materials, and automobile manufacturing.
[0003] In the production of existing valve steel bars, long strips of steel are often cut. During the cutting process, the steel bars are usually fed by a conveyor belt and then cut by a cutting machine. The lack of straightening and positioning of the steel bars during the cutting process makes them prone to deviation, which affects the production efficiency and also creates safety hazards. Utility Model Content
[0004] 1. Technical problems to be solved
[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide a straightening and cutting machine for valve steel bars. A straightening motor drives the straightening rollers to rotate, straightening the valve steel bars during feeding. An adjusting motor drives the top and bottom pressure rollers to move downwards. The straightening rollers and the top and bottom pressure rollers work together to position the valve steel bars, preventing them from shifting. The structure is simple and easy to operate, and it provides better fixing and positioning of the valve steel bars. Straightening can be performed during feeding to avoid shifting or errors, facilitating production operations.
[0006] 2. Technical Solution
[0007] To solve the above problems, the present invention adopts the following technical solution:
[0008] A straightening and cutting machine for valve steel bars includes: a straightening frame, with two pivot holes on one outer wall of the straightening frame, and straightening pivots rotatably connected to the inner walls of the two pivot holes. One end of each straightening pivot is rotatably connected to the inner wall of one side of the straightening frame, and a straightening roller is sleeved on the outer wall of each straightening pivot. A positioning assembly includes: multiple extension frames, a top mounting frame, a bidirectional threaded rod, two transmission components, a movable lower pressure frame, and a top and bottom pressure roller. The multiple extension frames are fixedly connected to the outer wall of the straightening frame, and the top mounting frame is fixedly connected between the top ends of the multiple extension frames. The bidirectional threaded rod is rotatably connected between the inner walls of the top mounting frame. Each of the two transmission components includes: a movable frame and an adjusting rod. The movable frame is rotatably sleeved on the outer wall of the bidirectional threaded rod via a thread, and the adjusting rod is rotatably connected to the bottom surface of the movable frame. The movable lower pressure frame is rotatably connected between the bottom ends of the two adjusting rods, and the top and bottom pressure roller is rotatably connected between the inner walls of the movable lower pressure frame.
[0009] As a preferred embodiment of this utility model, two limiting rods are fixedly connected between the inner walls of the top mounting frame, and both limiting rods movably pass through the two movable frames.
[0010] As a preferred embodiment of this utility model, an adjustment motor is installed on one outer wall of the top mounting bracket, and the output end of the adjustment motor is fixedly connected to one end of the bidirectional threaded rod.
[0011] As a preferred embodiment of this utility model, a concave frame is installed on one side of the outer wall of the straightening frame, and a connecting frame is fixedly connected to one side of the outer wall of the straightening frame.
[0012] As a preferred embodiment of this utility model, two straightening motors are installed on one outer wall of the concave frame, and one outer wall of the connecting frame is rotatably connected to one end of the two straightening shafts.
[0013] As a preferred embodiment of this utility model, the output ends of the two straightening motors and the outer walls of the two straightening shafts are all fitted with synchronous pulleys, and the corresponding two synchronous pulleys are connected by a synchronous belt drive. The cutting machine body is installed on one side of the outer wall of the top mounting frame.
[0014] 3. Beneficial Effects
[0015] Compared with the prior art, this utility model provides a straightening and cutting machine for air valve steel bars, which has the following advantages:
[0016] This straightening and cutting machine for valve steel bars uses a straightening motor to drive the straightening rollers to rotate, straightening the valve steel bars during feeding. The adjusting motor drives the top and bottom pressure rollers to move downwards. The straightening rollers and the top and bottom pressure rollers work together to position the valve steel bars and prevent them from shifting. The structure is simple and easy to operate, and it provides better fixing and positioning of the valve steel bars. Straightening can be performed during feeding to avoid shifting or errors, which is beneficial for production operations. Attached Figure Description
[0017] Figure 1 This is a perspective view of the present utility model;
[0018] Figure 2 This is a bottom-view perspective view of the present invention;
[0019] Figure 3 This is a partial bottom-view perspective view of the present invention.
[0020] Explanation of the labels in the diagram:
[0021] 1. Straightening frame; 2. Straightening shaft; 3. Straightening roller; 4. Straightening motor; 5. Extension frame; 6. Top mounting frame; 7. Bidirectional threaded rod; 8. Movable frame; 9. Adjusting connecting rod; 10. Movable lower pressure frame; 11. Top and lower pressure roller; 12. Limiting rod; 13. Adjusting motor; 14. Cutting machine body. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0023] Example:
[0024] Please see Figure 1-3A straightening and cutting machine for valve steel bars includes: a straightening frame 1, with two pivot holes on one outer wall of the straightening frame 1, and straightening pivots 2 rotatably connected to the inner walls of both pivot holes. One end of each straightening pivot 2 is rotatably connected to the inner wall of one side of the straightening frame 1, and straightening rollers 3 are sleeved on the outer walls of each straightening pivot 2; and a positioning assembly, which includes: multiple extension frames 5, a top mounting frame 6, a bidirectional threaded rod 7, two transmission components, a movable lower pressure frame 10, and a top and lower pressure roller 11. All are fixedly connected to the outer wall of the straightening frame 1. The top mounting frame 6 is fixedly connected between the top ends of multiple extension frames 5. The bidirectional threaded rod 7 is rotatably connected between the inner walls of the top mounting frame 6. Both transmission components include: a movable frame 8 and an adjusting connecting rod 9. The movable frame 8 is movably sleeved on the outer wall of the bidirectional threaded rod 7 by a thread. The adjusting connecting rod 9 is rotatably connected to the bottom surface of the movable frame 8. The movable lower pressure frame 10 is rotatably connected between the bottom ends of the two adjusting connecting rods 9. The top lower pressure roller 11 is rotatably connected between the inner walls of the movable lower pressure frame 10.
[0025] In a specific embodiment of this utility model, the valve steel bar on the conveyor belt is guided to the straightening frame 1. At the same time, the straightening motor 4 drives the straightening shaft 2 to rotate. The rotation of the straightening shaft 2 and the straightening roller 3 on both sides makes the valve steel bar located in the middle position of the two straightening rollers 3. Then, the adjusting motor 13 is started. The adjusting motor 13 drives the bidirectional threaded rod 7 to rotate, which causes the transmission component to drive the movable lower pressure frame 10 and the top lower pressure roller 11 to move down. At the same time, the straightening shaft 2 stops rotating. The straightening roller 3 and the top lower pressure roller 11 cooperate to position the valve steel bar during cutting and prevent it from shifting. The cutting machine body 14 cuts the valve steel bar. The cut steel bar will be located on one side of the straightening frame 1. The structure is simple and easy to operate. At the same time, the fixed positioning effect of the valve steel bar is better. Straightening can be performed during feeding to avoid shifting or errors, which is conducive to production operation.
[0026] Specifically, two limiting rods 12 are fixedly connected between the inner walls of the top mounting bracket 6, and both limiting rods 12 movably pass through the two movable brackets 8.
[0027] In this embodiment, the movable frame 8 is restricted by the limiting rod 12 to prevent it from rotating.
[0028] Specifically, an adjustment motor 13 is installed on one outer wall of the top mounting bracket 6, and the output end of the adjustment motor 13 is fixedly connected to one end of the bidirectional threaded rod 7.
[0029] In this embodiment, by adjusting the motor 13 to drive the bidirectional threaded rod 7 to rotate, the movable frames 8 located on both sides are driven to move in opposite directions.
[0030] Specifically, a concave frame is installed on one outer wall of the straightening frame 1, and a connecting frame is fixedly connected to one outer wall of the straightening frame 1.
[0031] In this embodiment, the straightening motor 4 is installed by a concave frame, and the connecting frame is used to install and protect the straightening shaft 2.
[0032] Specifically, two straightening motors 4 are installed on one outer wall of the concave frame, and one outer wall of the connecting frame is rotatably connected to one end of the two straightening shafts 2.
[0033] In this embodiment, the straightening motor 4 drives the straightening shaft 2 to rotate, thereby straightening the valve steel bar during feeding.
[0034] Specifically, the output ends of the two straightening motors 4 and the outer walls of the two straightening shafts 2 are all fitted with synchronous pulleys, and the corresponding two synchronous pulleys are connected by a synchronous belt drive. The cutting machine body 14 is installed on one side of the outer wall of the top mounting bracket 6.
[0035] In this embodiment, the cutting machine body 14 performs cutting operations on the air valve steel bar through synchronous pulley and synchronous belt transmission.
[0036] Working principle: The valve steel bars on the conveyor belt are guided to the straightening frame 1 by the guide. At the same time, the straightening motor 4 drives the straightening shaft 2 to rotate. The rotation of the straightening shafts 2 and the straightening rollers 3 on both sides makes the valve steel bars position in the middle of the two straightening rollers 3. Then, the adjusting motor 13 is started. The adjusting motor 13 drives the bidirectional threaded rod 7 to rotate, which causes the transmission component to move the movable lower pressure frame 10 and the top lower pressure roller 11 downward. At the same time, the straightening shaft 2 stops rotating. The straightening rollers 3 and the top lower pressure roller 11 cooperate to position the valve steel bars during cutting and prevent them from shifting. The cutting machine body 14 cuts the valve steel bars. The cut steel bars will be located on one side of the straightening frame 1. The structure is simple and easy to operate. At the same time, the fixed positioning effect of the valve steel bars is better. Straightening can be performed during feeding to avoid shifting or errors, which is conducive to production operation.
[0037] The control method of this utility model is to control the device by manually starting and stopping the switch. The wiring diagram of the power element and the supply of power are common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and wiring layout will not be explained in detail.
[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model based on the technical solution and its improved concept should be covered within the protection scope of the present utility model.
Claims
1. A straightening and cutting machine for air valve steel bars, characterized in that, include: A straightening frame (1) has two pivot holes on one side of its outer wall. The inner walls of the two pivot holes are rotatably connected to straightening pivots (2). One end of each of the two straightening pivots (2) is rotatably connected to the inner wall of one side of the straightening frame (1). Straightening rollers (3) are sleeved on the outer walls of the two straightening pivots (2). as well as The positioning assembly includes: multiple extension frames (5), a top mounting frame (6), a bidirectional threaded rod (7), two transmission components, a movable lower pressure frame (10), and a top lower pressure roller (11). The multiple extension frames (5) are fixedly connected to the outer wall of the straightening frame (1). The top mounting frame (6) is fixedly connected between the top ends of the multiple extension frames (5). The bidirectional threaded rod (7) is rotatably connected between the inner walls of the top mounting frame (6). The two transmission components each include: a movable frame (8) and an adjusting link (9). The movable frame (8) is movably sleeved on the outer wall of the bidirectional threaded rod (7) by a thread. The adjusting link (9) is rotatably connected to the bottom surface of the movable frame (8). The movable lower pressure frame (10) is rotatably connected between the bottom ends of the two adjusting links (9). The top lower pressure roller (11) is rotatably connected between the inner walls of the movable lower pressure frame (10).
2. The straightening and cutting machine for a valve steel bar according to claim 1, characterized in that: Two limiting rods (12) are fixedly connected between the inner walls of the top mounting bracket (6), and both limiting rods (12) movably pass through the two movable brackets (8).
3. The straightening and cutting machine for a valve steel bar according to claim 2, characterized in that: An adjustment motor (13) is installed on one side of the outer wall of the top mounting bracket (6), and the output end of the adjustment motor (13) is fixedly connected to one end of the bidirectional threaded rod (7).
4. A straightening and cutting machine for a valve steel bar according to claim 3, characterized in that: A concave frame is installed on one side of the outer wall of the straightening frame (1), and a connecting frame is fixedly connected to one side of the outer wall of the straightening frame (1).
5. A straightening and cutting machine for a valve steel bar according to claim 4, characterized in that: Two straightening motors (4) are installed on one side of the outer wall of the concave frame, and one side of the outer wall of the connecting frame is rotatably connected to one end of the two straightening shafts (2).
6. A straightening and cutting machine for a valve steel bar according to claim 5, characterized in that: Synchronous pulleys are fitted on the output ends of the two straightening motors (4) and the outer walls of the two straightening shafts (2). The corresponding two synchronous pulleys are connected by a synchronous belt drive. The cutting machine body (14) is installed on one side of the outer wall of the top mounting bracket (6).