Gas flow control device

Abstract

The utility model relates to the technical field of copper bar processing, in particular to a gas flow control device which comprises a valve body, a gas outlet passage and a gas inlet passage which are used for being connected with a gas pipeline are arranged on the valve body, a communicating groove is further arranged inside the valve body, one side of the communicating groove is communicated with the gas outlet passage, and the other side of the communicating groove is communicated with the gas inlet passage. A valve rod is arranged in the communicating groove, the valve rod is connected into the communicating groove in a sliding mode, the valve rod is used for shielding and blocking the ventilation pipeline, and a driving piece used for driving the valve rod to slide is further arranged on the valve body. A valve rod and a control piece are arranged, gas is blocked through the valve rod, the position of the valve rod can be adjusted to adjust the size of a gas channel, and therefore the flow of the gas is changed, and when the combustion temperature needs to be increased, the flow of the gas is increased to increase the combustion degree, so that the combustion temperature is increased; and when the temperature needs to be reduced, the flow of the fuel gas is reduced, so that the combustion heat is controlled, the temperature control is more accurate during processing, and the red punching quality of the copper rod is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of copper rod processing, in particular to a gas flow control device. Background Art

[0002] Nonferrous metal heating is a metal processing method, also known as "hot pressing". Simply put, it is to compress and squeeze the copper rod at high temperature to change its shape and structure, so as to achieve the processing purpose. The main function of hot punching is to change the microstructure and mechanical properties of the metal, and the copper rod can be processed into various shapes, such as tubes, plates, etc.

[0003] In the prior art, the copper rod red punching usually uses combustion to heat the copper rod, but the temperature of direct combustion is difficult to control. The copper rod is prone to being not soft enough to be deformed, or being too soft to affect the forming, thereby affecting the red punching quality of the copper rod. Utility Model Content

[0004] In order to solve the problem that copper rod red-punching usually uses combustion to heat the copper rod, but the temperature of direct combustion is difficult to control, thus affecting the quality of copper rod red-punching, the present application provides a gas flow control device, and the specific solution is as follows.

[0005] A gas flow control device comprises a valve body, the valve body is provided with an outlet passage and an inlet passage for connecting a gas pipeline, a connecting groove is also provided inside the valve body, one side of the connecting groove is connected with the outlet passage, and the other side is connected with the inlet passage, a valve stem is arranged in the connecting groove, the valve stem is slidably connected in the connecting groove, the valve stem is used to block and block the ventilation pipeline, and a driving member for driving the valve stem to slide is also arranged on the valve body.

[0006] By adopting the above technical scheme, a valve stem and a control member are set, and the gas is blocked by the valve stem. The position of the valve stem can be adjusted to adjust the size of the gas passage, thereby changing the flow rate of the gas. When the combustion temperature needs to be increased, the valve stem is controlled to open the passage, and the flow rate of the gas is increased to increase the degree of combustion, thereby increasing the combustion temperature. When the temperature needs to be lowered, the flow rate of the gas is reduced, thereby controlling the combustion heat, making the temperature control more accurate during processing, thereby improving the quality of copper rod red punching.

[0007] Optionally, the driving member includes a servo electric cylinder, a cylinder body of the servo electric cylinder is fixedly mounted on the valve body, and a piston rod of the servo electric cylinder is fixedly connected to the valve stem.

[0008] By adopting the above technical solution, the servo electric cylinder is a high-precision, low-noise drive component. Through the cooperation of the servo motor and the lead screw, the rotational motion of the servo motor is converted into the linear motion of the piston rod. Since the number of rotations of the servo motor can be precisely controlled, the piston rod can also accurately control the linear displacement distance, further improving the accuracy of gas flow regulation.

[0009] Optionally, a thread groove is provided on the piston rod of the servo electric cylinder, and the valve stem is threadedly connected in the thread groove.

[0010] By adopting the above technical solution, a thread groove is opened on the piston rod of the servo electric cylinder, and the valve stem is threadedly connected in the thread groove, so that the valve stem can adjust its position within a certain range, thereby reducing the situation in which factors such as work tolerance affect the sealing effect of the valve stem.

[0011] Optionally, the air inlet passage is arranged at the end of the connecting groove away from the driving member, and the air outlet passage is arranged at a side close to the driving member.

[0012] By adopting the above technical solution, the air inlet passage and the air outlet passage are staggered so that a certain distance is left between the air inlet passage and the air outlet passage, which can improve the shielding and sealing effect of the valve stem and reduce the leakage of gas from the gap.

[0013] Optionally, a ventilation groove is provided on the valve stem, and the ventilation groove is arranged through the valve stem. When the valve stem moves from the air inlet passage toward the air outlet passage, the ventilation groove gradually connects the air outlet passage with the air inlet passage.

[0014] By adopting the above technical solution, a vent groove is provided on the valve stem, so that a small part of the gas can first pass through the vent groove.

[0015] Optionally, the ventilation groove is arranged at an oblique opening, and the ventilation groove is arranged at an acute angle as a whole.

[0016] By adopting the above technical solution, the ventilation groove is set at an angle. The ventilation groove set at the angle can further enable the valve stem to gradually increase the size of the ventilation passage during movement, thereby gradually increasing the flow rate of the gas, so that the gas flow rate can be gradually changed, reducing the safety hazard caused by the gas flowing out too quickly.

[0017] Optionally, the valve body is further provided with a conical groove at the connection point between the ventilation groove and the air intake passage, and the conical groove is opened on the groove wall of the ventilation groove.

[0018] By adopting the above technical solution, a conical groove is provided at the connection point between the ventilation groove and the air intake passage. The conical groove can reduce the friction of the gas inside the valve body to a certain extent, thereby reducing energy loss and wear and improving the quality of the gas.

[0019] Optionally, a connecting block is further provided on the valve body, one side of the connecting block is fixedly connected to the servo electric cylinder, and the other side of the connecting block is fixedly connected to the valve body.

[0020] By adopting the above technical solution, a connecting block is arranged on the valve body for fixed connection of the servo electric cylinder, thereby improving the stability of the servo electric cylinder when controlling the valve stem.

[0021] Optionally, a clearance groove is provided on the connection block, and the clearance groove is arranged corresponding to the piston rod of the servo electric cylinder, and the piston rod of the servo electric cylinder passes through the connection block.

[0022] By adopting the above technical solution and providing a clearance groove for the piston rod to be embedded, the interference between the piston rod and the connecting block can be reduced, and the connecting block wraps the piston rod to provide protection for the piston rod.

[0023] Optionally, the valve body is provided with threads on the air inlet passage and the air outlet passage.

[0024] By adopting the above technical solution, threads are provided on the air inlet passage and the air outlet passage, which makes it easier for the gas pipeline to be threadedly connected through flanges when connected, thereby improving the convenience of installation.

[0025] In summary, this application has at least the following beneficial effects:

[0026] 1. The present application solves the problem that in the prior art, copper rod red-hot charging usually uses combustion to heat the copper rod, but the temperature of direct combustion is difficult to control, thus affecting the quality of copper rod red-hot charging. The present application controls the flow rate of the gas in the valve body by setting a valve body and a valve stem, and changes the degree of flame combustion by changing the flow rate of the gas to control the temperature of the copper rod, thereby improving the quality of copper rod red-hot charging.

[0027] 2. The present application also controls the movement of the valve body by setting a servo electric cylinder, thereby further improving the accuracy of the valve body movement, making the regulation of the gas flow more accurate, further improving the accuracy of the copper rod temperature control, and improving the quality of the copper rod red punching. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a stereogram of this embodiment.

[0029] Figure 2 is a cross-sectional view of this embodiment.

[0030] Figure 3 It is a partial cross-sectional view of this embodiment.

[0031] Description of reference numerals:

[0032] 1. Valve body; 11. Air outlet passage; 12. Air inlet passage; 13. Connecting groove; 14. Valve stem; 141. Ventilation groove; 15. Conical groove;

[0033] 2. Servo electric cylinder; 21. Cylinder body; 22. Piston rod; 221. Thread groove;

[0034] 3. Connecting block; 31. Give way groove. DETAILED DESCRIPTION

[0035] The following is combined with Figure 1-3 , the present application is further described in detail through specific embodiments.

[0036] A gas flow control device, such as Figure 1 and Figure 2 As shown, it includes a valve body 1, on which an outlet passage 11 and an inlet passage 12 for connecting a gas pipeline are provided, and threads are provided on the inner wall of the inlet passage 12 and the outlet passage 11 of the valve body 1. A connecting groove 13 is also provided inside the valve body 1, and the connecting groove 13 is provided between the outlet passage 11 and the inlet passage 12, and one side of the connecting groove 13 is connected to the outlet passage 11, and the other side is connected to the inlet passage 12. A valve stem 14 is provided in the connecting groove 13, and the valve stem 14 is slidably connected in the connecting groove 13 and slides along the connecting groove 13. In specific implementation, the gas pipeline for gas intake is threadedly connected to the inlet passage 12, and the gas pipeline for gas outlet is threadedly connected to the outlet passage 11, so as to realize the inlet and outlet of gas, and the valve stem 14 can block and block the ventilation pipeline during the sliding process, so as to adjust the flow of gas.

[0037] like Figure 1 and Figure 2 As shown, a driving member for driving the valve stem 14 to slide is also provided on the valve body 1. The driving member includes a servo electric cylinder 2, and the cylinder body 21 of the servo electric cylinder 2 is fixedly mounted on the valve body 1. A threaded groove 221 is provided on the piston rod 22 of the servo electric cylinder 2, and the valve stem 14 is threadedly connected in the threaded groove 221. Since the valve stem 14 and the piston rod 22 do not rotate, the valve stem 14 is fixedly connected to the piston rod 22. In specific implementation, the servo electric cylinder 2 can accurately drive the valve stem 14 on its piston rod 22 to move. When the valve stem 14 cannot normally adjust the flow rate due to size or other factors, the position of the valve stem 14 can be rotated to enable the flow rate to be re-adjusted. In other embodiments, the servo electric cylinder 2 can also be replaced by a linear motor with similar precision, which can also achieve precise control of the valve stem 14 to adjust the flow rate.

[0038] like Figure 2 and Figure 3As shown, a connection block 3 is also provided on the valve body 1, one side of the connection block 3 is fixedly connected to the cylinder body 21 of the servo electric cylinder 2 by bolts, and the other side of the connection block 3 is also fixedly connected to the valve body 1 by bolts and abuts against the valve body 1. A clearance groove 31 is provided on the connection block 3, and the clearance groove 31 is provided corresponding to the piston rod 22 of the servo electric cylinder 2, and the piston rod 22 of the servo electric cylinder 2 is provided through the connection block 3. In specific implementation, a sealing ring is provided on the valve stem 14 at the position where the valve body 1 abuts the connection block 3, and the sealing ring can reduce the leakage of gas from the valve body 1.

[0039] like Figure 2 and Figure 3 As shown, the air inlet passage 12 is arranged at the end of the connecting groove 13 away from the driving member, and the air outlet passage 11 is arranged on the side close to the driving member. A ventilation groove 141 is provided on the valve stem 14, and the ventilation groove 141 is arranged through the valve stem 14. When the valve stem 14 moves from the air inlet passage 12 toward the air outlet passage 11, the ventilation groove 141 gradually connects the air outlet passage 11 with the air inlet passage 12. The ventilation groove 141 is arranged at an oblique mouth, and the ventilation groove 141 is arranged at an acute angle as a whole, and is in a "V" shape when viewed from above. In specific implementation, the ventilation groove 141 can gradually open the passage during the movement of the valve stem 14, so that the gas flow rate can be gradually increased, reducing the situation where too much gas is discharged at one time and there is a safety hazard.

[0040] like Figure 2 and Figure 3 As shown, the valve body 1 is further provided with a conical groove 15 at the connection between the vent groove 141 and the air intake passage 12, and the conical groove 15 is opened on the groove wall of the vent groove 141. In specific implementation, the conical groove 15 can reduce the friction of the gas inside the valve body 1 to a certain extent, thereby reducing energy loss and wear and improving the quality of the gas.

[0041] Working principle: The gas pipeline needs to be connected to the valve body 1 first, and the servo electric cylinder 2 can drive the valve stem 14 to move precisely in the valve body 1, so that the valve stem 14 can adjust the flow of gas, change the flow of gas to control the degree of combustion, and thus control the temperature of the copper rod, while the ventilation groove 141 on the valve stem 14 can gradually adjust the gas flow, so that the flow change is more moderate when the gas flow is adjusted.

[0042] The above are preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A gas flow control device, characterized in that: The invention comprises a valve body (1), wherein the valve body (1) is provided with an outlet passage (11) and an inlet passage (12) for connecting to a gas pipeline, and the valve body (1) is also provided with a connecting groove (13) inside, wherein one side of the connecting groove (13) is connected to the outlet passage (11), and the other side is connected to the inlet passage (12), and a valve stem (14) is arranged in the connecting groove (13), wherein the valve stem (14) is slidably connected in the connecting groove (13), and the valve stem (14) is used to shield and block the ventilation pipeline, and the valve body (1) is also provided with a driving member for driving the valve stem (14) to slide.

2. A gas flow control device according to claim 1, characterized in that: The driving component comprises a servo electric cylinder (2), a cylinder body (21) of the servo electric cylinder (2) is fixedly mounted on the valve body (1), and a piston rod (22) of the servo electric cylinder (2) is fixedly connected to the valve stem (14).

3. A gas flow control device according to claim 2, characterized in that: A thread groove (221) is provided on the piston rod (22) of the servo electric cylinder (2), and the valve stem (14) is threadedly connected in the thread groove (221).

4. A gas flow control device according to claim 1, characterized in that: The air inlet passage (12) is arranged at the end of the connecting groove (13) away from the driving member, and the air outlet passage (11) is arranged at a side close to the driving member.

5. A gas flow control device according to claim 4, characterized in that: The valve stem (14) is provided with a ventilation groove (141), which penetrates the valve stem (14). When the valve stem (14) moves from the air inlet passage (12) toward the air outlet passage (11), the ventilation groove (141) gradually connects the air outlet passage (11) with the air inlet passage (12).

6. A gas flow control device according to claim 5, characterized in that: The ventilation groove (141) is arranged at an oblique opening, and the ventilation groove (141) is arranged at an acute angle as a whole.

7. A gas flow control device according to claim 4, characterized in that: The valve body (1) is further provided with a conical groove (15) at the connection point between the ventilation groove (141) and the air intake passage (12); the conical groove (15) is opened on the groove wall of the ventilation groove (141).

8. A gas flow control device according to claim 2, characterized in that: The valve body (1) is also provided with a connection block (3), one side of the connection block (3) is fixedly connected to the servo electric cylinder (2), and the other side of the connection block (3) is fixedly connected to the valve body (1).

9. A gas flow control device according to claim 8, characterized in that: The connection block (3) is provided with a clearance groove (31), the clearance groove (31) is arranged corresponding to the piston rod (22) of the servo electric cylinder (2), and the piston rod (22) of the servo electric cylinder (2) is arranged through the connection block (3).

10. A gas flow control device according to claim 1, characterized in that: The valve body (1) is provided with threads on the air inlet passage (12) and the air outlet passage (11).

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