Electric control heat dissipation device for rotating hook
Patent Information
- Application Number
- CN202310717416.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-06-16
- Publication Date
- 2026-10-27
- Estimated Expiration
- 2043-06-16
AI Technical Summary
然而,润滑装置所提供的润滑油不能有效地降低缝纫机的旋梭的温度,而此一问题亟待解决
[0003]为解决上述问题,本发明的目的在于提供一种旋梭电控散热装置。
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Figure CN119145137B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to a heat dissipation device, and more particularly to a rotary shuttle electronically controlled heat dissipation device. Background Technology
[0002] When a sewing machine with a rotary hook is in operation, the high-speed rotation of the hook leads to significant friction between its internal parts, causing the hook's temperature to rise. Therefore, a lubrication system is typically installed to continuously supply lubricating oil to the hook to reduce its temperature. However, the lubricating oil supplied by this system is not always effective in lowering the temperature of the sewing machine's rotary hook, and this problem urgently needs to be addressed. Summary of the Invention
[0003] To address the aforementioned problems, the present invention aims to provide an electronically controlled heat dissipation device for a rotary shuttle.
[0004] To achieve the above-mentioned objectives of the present invention, the rotary hook electronically controlled heat dissipation device of the present invention is applied to a sewing machine and a compressed air supply device. The sewing machine includes a sewing machine start pedal, a sewing machine servo motor, and a rotary hook. The rotary hook electronically controlled heat dissipation device includes: a microprocessor; a first solenoid valve electrically connected to the microprocessor and connected to the compressed air supply device; and a vortex tube connected to the first solenoid valve. When the microprocessor detects that the sewing machine start pedal is pressed, the microprocessor drives the sewing machine servo motor to rotate the rotary hook, and the microprocessor drives the first solenoid valve to allow compressed air supplied by the compressed air supply device to flow into the vortex tube through the first solenoid valve. The vortex tube uses the compressed air to generate cold air and outputs the cold air toward the rotary hook.
[0005] The advantage of this invention is that it effectively reduces the temperature of the sewing machine's rotary hook.
[0006] To gain a deeper understanding of the techniques, means, and effects employed by this invention to achieve its intended purpose, please refer to the following detailed description and accompanying drawings. It is believed that the purpose, features, and characteristics of this invention can be understood in a thorough and specific manner from these drawings. However, the accompanying drawings are provided for reference and illustration only and are not intended to limit the scope of this invention. Attached Figure Description
[0007] Figure 1 This is a block diagram of a basic embodiment of the rotary shuttle electronically controlled heat dissipation device of the present invention.
[0008] Figure 2 This is an external view of some parts of the rotary shuttle electronically controlled heat dissipation device and some parts of the sewing device of the present invention.
[0009] Figure 3This is a block diagram of the first embodiment of the rotary shuttle electronically controlled heat dissipation device of the present invention.
[0010] Figure 4 This is a schematic diagram of the state of the first embodiment of the first solenoid valve of the present invention, wherein the left side shows the state in which the first solenoid valve is driven, and the right side shows the state in which the first solenoid valve is not driven.
[0011] Figure 5 This is an operation flowchart of the first embodiment of the rotary shuttle electronically controlled heat dissipation device of the present invention.
[0012] Figure 6 This is a block diagram of a second embodiment of the rotary shuttle electronically controlled heat dissipation device of the present invention.
[0013] Figure 7 This is a schematic diagram of the state of a second embodiment of the first solenoid valve of the present invention. The left side diagram shows the state in which the microprocessor drives the first solenoid valve to open the first main air outlet and close the first air outlet to be opened. The right side diagram shows the state in which the microprocessor stops driving the first solenoid valve to close the first main air outlet and open the first air outlet to be opened.
[0014] Figure 8 This is an operation flowchart of the second embodiment of the rotary shuttle electronically controlled heat dissipation device of the present invention.
[0015] Figure 9 This is a block diagram of a third embodiment of the rotary shuttle electronically controlled heat dissipation device of the present invention.
[0016] Figure 10 This is a schematic diagram of the state of the second solenoid valve of the present invention, wherein the left side shows the state in which the second solenoid valve is driven, and the right side shows the state in which the second solenoid valve is not driven.
[0017] Figure 11 This is an operation flowchart of the third embodiment of the rotary shuttle electronically controlled heat dissipation device of the present invention.
[0018] Explanation of symbols in the attached diagram:
[0019] 10: Rotary shuttle electronically controlled heat dissipation device;
[0020] 20: Sewing device;
[0021] 30: Compressed air supply device;
[0022] 102: Microprocessor;
[0023] 104: First solenoid valve;
[0024] 106: Vortex tube;
[0025] 108: Cold air delivery pipe;
[0026] 110: Throttling valve;
[0027] 112: Second solenoid valve;
[0028] 202: Sewing machine start pedal;
[0029] 204: Sewing machine servo motor;
[0030] 206: Rotary shuttle;
[0031] 302: Compressed air;
[0032] 304: Cold air;
[0033] 306: Hot air;
[0034] 1042: First air intake;
[0035] 1044: First main air outlet;
[0036] 1046: The first time, an air outlet is needed;
[0037] 1062: Cold air outlet;
[0038] 1064: Compressed air inlet;
[0039] 1066: Hot air outlet;
[0040] 1122: Second air intake;
[0041] 1124: Second main air outlet;
[0042] 1126: The second time, an air outlet is needed;
[0043] S502: Steps;
[0044] S504: Steps;
[0045] S506: Steps;
[0046] S508: Steps;
[0047] S802: Steps;
[0048] S804: Steps;
[0049] S806: Steps;
[0050] S808: Steps;
[0051] S1102: Steps;
[0052] S1104: Steps;
[0053] S1106: Steps;
[0054] S1108: Steps;
[0055] S1110: Steps. Detailed Implementation
[0056] This disclosure provides numerous specific details to give a thorough understanding of particular embodiments of the invention; however, those skilled in the art will recognize that the invention can be practiced without one or more of these specific details; in other instances, well-known details have not been shown or described to avoid obscuring the key technical features of the invention. The technical content and detailed description of the invention are explained below in conjunction with the accompanying drawings:
[0057] Please refer to Figure 1 This is a block diagram of a basic embodiment of the rotary shuttle electronically controlled heat dissipation device 10 of the present invention; please also refer to... Figure 2 This is an external view of some parts of the rotary hook electronically controlled heat dissipation device 10 and some parts of the sewing device 20 of the present invention; it should be noted that in order to make Figure 2 More concise and clear, Figure 2 Only the appearance of some parts of the rotary hook electronically controlled heat dissipation device 10 and the sewing device 20 is shown. The rotary hook electronically controlled heat dissipation device 10 of the present invention is applied to a sewing device 20 and a compressed air supply device 30. The sewing device 20 includes a sewing machine start pedal 202, a sewing machine servo motor 204, a rotary hook 206, and any other components not shown. Figure 1 and Figure 2 However, belonging to all known components of a sewing machine, the rotary hook electronic cooling device 10 includes a microprocessor 102 (or a microcomputer), a first solenoid valve 104, a vortex tube 106, a cold air delivery pipe 108, and a power supply circuit (not shown) for supplying power to the various components of the rotary hook electronic cooling device 10. Figure 1 and Figure 2 The vortex tube 106 includes a cold air outlet 1062, a compressed air inlet 1064, and a hot air outlet 1066. The first solenoid valve 104 is electrically connected to the microprocessor 102. The first solenoid valve 104 is connected (i.e., piped) to the compressed air supply device 30 and connected (i.e., piped) to the vortex tube 106 through the compressed air inlet 1064. The vortex tube 106 is connected (i.e., piped) to the cold air delivery pipe 108 through the cold air outlet 1062.
[0058] When the microprocessor 102 detects (e.g. via a method not shown) Figure 1 and Figure 2 When the microprocessor 102 detects (e.g., when an input circuit detects) that the sewing machine start pedal 202 is pressed (e.g., when a user presses the sewing machine start pedal 202), the microprocessor 102 drives (e.g., via an input circuit not shown) the sewing machine start pedal 202. Figure 1 and Figure 2 The sewing machine servo motor 204 is driven by a servo motor driver to rotate the rotary hook 206, and the microprocessor 102 drives (e.g., via a servo motor driver not shown) the sewing machine servo motor 204 ... Figure 1 and Figure 2 (Driven by an output circuit) The first solenoid valve 104 causes compressed air 302 supplied by the compressed air supply device 30 to flow into the vortex tube 106 through the first solenoid valve 104 and the compressed air inlet 1064. The vortex tube 106 uses the compressed air 302 to generate cold air 304 and outputs the cold air 304 towards the rotary shuttle 206 through the cold air outlet 1062 and the cold air delivery pipe 108, thereby reducing the temperature of the rotary shuttle 206. At the same time, the vortex tube 106 generates hot air 306 and outputs the hot air 306 through the hot air outlet 1066. The temperature of the cold air 304 is lower than the temperature of the compressed air 302, while the temperature of the hot air 306 is higher than the temperature of the compressed air 302.
[0059] Please refer to Figure 3 This is a block diagram of the first embodiment of the rotary electric heat dissipation device 10 of the present invention. Figure 3 The components shown are Figure 1 The components shown are identical; for the sake of simplicity, their description will not be repeated here. Please also refer to [link / reference needed]. Figure 4 This is a schematic diagram of the state of the first embodiment of the first solenoid valve 104 of the present invention. Figure 3 The first solenoid valve 104 shown is Figure 4 The first solenoid valve 104, wherein Figure 4 The left side represents the state where the first solenoid valve 104 is actuated, while Figure 4 The right side represents the state where the first solenoid valve 104 is not driven. The first solenoid valve 104 includes a first air inlet 1042, which is connected (i.e., piped) to the compressed air supply device 30 so that the first solenoid valve 104 receives the compressed air 302 provided by the compressed air supply device 30 through the first air inlet 1042.
[0060] Furthermore, please refer to the following: Figure 3 and Figure 4 The first solenoid valve 104 further includes a first main air outlet 1044 and a first secondary air outlet 1046. The first main air outlet 1044 is connected (i.e., piped) to the compressed air inlet 1064 of the vortex tube 106, and the first secondary air outlet 1046 is closed. When the microprocessor 102 detects that the sewing machine start pedal 202 is pressed, the microprocessor 102 drives the first solenoid valve 104 (e.g., ... Figure 4(on the left) to open the first main air outlet 1044 so that the compressed air 302 provided by the compressed air supply device 30 flows into the vortex tube 106 through the first air inlet 1042, the first solenoid valve 104, the first main air outlet 1044, and the compressed air inlet 1064. When the microprocessor 102 detects that the sewing machine start pedal 202 is not pressed (e.g., the user stops pressing the sewing machine start pedal 202), the microprocessor 102 stops driving the sewing machine servo motor 204 to stop driving the rotary hook 206 to rotate, and the microprocessor 102 stops driving the first solenoid valve 104 (e.g., on the left). Figure 4 (to the right) to close the first main air outlet 1044 so that the compressed air 302 supplied by the compressed air supply device 30 stops flowing into the vortex tube 106 through the first solenoid valve 104, and the vortex tube 106 stops using the compressed air 302 to generate the cold air 304 and stops outputting the cold air 304 toward the rotary shuttle 206.
[0061] Please refer to Figure 5 This is an operation flowchart of the first embodiment of the rotary shuttle electronically controlled heat dissipation device 10 of the present invention; please also refer to... Figure 3 The operation flow of the first embodiment of the rotary shuttle electronically controlled heat dissipation device 10 of the present invention includes the following steps:
[0062] Step S502: The sewing device 20 is turned on; then, the operation process proceeds to step S504.
[0063] Step S504: Determine whether the sewing machine start pedal 202 has been pressed forward; if yes, proceed to step S506; if no, proceed to step S508.
[0064] Step S506: Drive the sewing machine servo motor 204 to rotate the rotary hook 206, and drive the first solenoid valve 104 to output the cold air 304 towards the rotary hook 206 through the vortex tube 106.
[0065] Step S508: Stop driving the sewing machine servo motor 204 to stop driving the rotary hook 206 to rotate, and stop driving the first solenoid valve 104 to stop the vortex tube 106 from outputting the cold air 304 toward the rotary hook 206.
[0066] Please refer to Figure 6 This is a block diagram of the second embodiment of the rotary electric heat dissipation device 10 of the present invention; Figure 6 The components shown are Figure 1 The components shown are identical; for the sake of simplicity, their description will not be repeated here. Please also refer to [link / reference needed]. Figure 7 This is a schematic diagram of the state of the second embodiment of the first solenoid valve 104 of the present invention. Figure 6 The first solenoid valve 104 shown is Figure 7 The first solenoid valve 104, wherein Figure 7 The left side represents the state where the first solenoid valve 104 is actuated, while Figure 7 The right side represents the state where the first solenoid valve 104 is not driven. The rotary shuttle electronically controlled heat dissipation device 10 further includes a throttle valve 110, which is connected to the first solenoid valve 104 and the compressed air inlet 1064 of the vortex tube 106.
[0067] Furthermore, please refer to the following: Figure 6 and Figure 7 The first solenoid valve 104 includes a first air inlet 1042, a first main air outlet 1044, and a first exhaust outlet 1046. The first air inlet 1042 is connected (i.e., piped) to the compressed air supply device 30 so that the first solenoid valve 104 receives compressed air 302 provided by the compressed air supply device 30 through the first air inlet 1042. The first main air outlet 1044 is connected (i.e., piped) to the compressed air inlet 1064 of the vortex tube 106. The first exhaust outlet 1046 is connected to the throttle valve 110. When the microprocessor 102 detects that the sewing machine start pedal 202 is pressed, the microprocessor 102 drives the first solenoid valve 104 to open the first main air outlet 1044 and close the first exhaust outlet 1046 (e.g., ...). Figure 7 (on the left) so that the compressed air 302 provided by the compressed air supply device 30 flows into the vortex tube 106 through the first air inlet 1042, the first solenoid valve 104, the first main air outlet 1044, and the compressed air inlet 1064. When the microprocessor 102 detects that the sewing machine start pedal 202 is not pressed (e.g., the user stops pressing the sewing machine start pedal 202), the microprocessor 102 stops driving the sewing machine servo motor 204 to stop driving the rotary hook 206 to rotate, and the microprocessor 102 stops driving the first solenoid valve 104 to close the first main air outlet 1044 and open the first air outlet 1046 (e.g., on the left). Figure 7(to the right) so that the compressed air 302 provided by the compressed air supply device 30 flows into the vortex tube 106 through the first air inlet 1042, the first solenoid valve 104, the first main air outlet 1046, the throttle valve 110 and the compressed air inlet 1064; the throttle valve 110 is used to reduce the flow rate of the compressed air 302 through the throttle valve 110, so the flow rate of the compressed air 302 delivered from the throttle valve 110 to the vortex tube 106 (at this time the microprocessor 102 stops driving the first solenoid valve 104) will be less than the flow rate of the compressed air 302 delivered from the first main air outlet 1044 to the vortex tube 106 (at this time the microprocessor 102 drives the first solenoid valve 104).
[0068] Please refer to Figure 8 This is an operation flowchart of the second embodiment of the rotary shuttle electronically controlled heat dissipation device 10 of the present invention; please also refer to... Figure 6 The operation process of the second embodiment of the rotary shuttle electronically controlled heat dissipation device 10 of the present invention includes the following steps:
[0069] Step S802: The sewing device 20 is turned on; then, the operation process proceeds to step S804.
[0070] Step S804: Determine whether the sewing machine start pedal 202 has been pressed by the front step; if yes, the operation process proceeds to step S806; if no, the operation process proceeds to step S808.
[0071] Step S806: Drive the sewing machine servo motor 204 to rotate the rotary hook 206, and drive the first solenoid valve 104 to output the cold air 304 towards the rotary hook 206 through the vortex tube 106.
[0072] Step S808: Stop driving the sewing machine servo motor 204 to stop driving the rotary hook 206 to rotate, and stop driving the first solenoid valve 104 so that the vortex tube 106 outputs less of the cold air 304 (that is, less than the cold air 304 output in step S806) toward the rotary hook 206.
[0073] Please refer to Figure 9 This is a block diagram of the third embodiment of the rotary shuttle electronically controlled heat dissipation device 10 of the present invention; Figure 9 The components shown are Figure 1 The components shown are identical; for the sake of simplicity, their description will not be repeated here. Please also refer to [link / reference needed]. Figure 10 This is a schematic diagram of the state of the second solenoid valve 112 of the present invention. Figure 9 The second solenoid valve 112 shown is Figure 10 The second solenoid valve 112, wherein Figure 10The left side shows the state where the second solenoid valve 112 is actuated, while Figure 10 The right side indicates that the second solenoid valve 112 is not being driven. Figure 9 The first solenoid valve 104 shown is Figure 4 The first solenoid valve 104. The rotary electronically controlled heat dissipation device 10 further includes a throttle valve 110 and a second solenoid valve 112. The throttle valve 110 is connected (i.e., piped) to the compressed air inlet 1064 of the vortex tube 106. The second solenoid valve 112 is electrically connected to the microprocessor 102. The second solenoid valve 112 is connected to the throttle valve 110 and connected (i.e. piped) to the compressed air supply device 30.
[0074] Furthermore, please refer to the following: Figure 4 , Figure 9 and Figure 10 The first solenoid valve 104 includes a first air inlet 1042, a first main air outlet 1044, and a first exhaust outlet 1046. The first air inlet 1042 is connected (i.e., piped) to the compressed air supply device 30 so that the first solenoid valve 104 receives compressed air 302 supplied by the compressed air supply device 30 through the first air inlet 1042. The first main air outlet 1044 is connected (i.e., piped) to the compressed air inlet 1064 of the vortex tube 106. The first exhaust outlet... Port 1046 is closed; the second solenoid valve 112 includes a second air inlet 1122, a second main air outlet 1124, and a second secondary exhaust port 1126. The second air inlet 1122 is connected (i.e., piped) to the compressed air supply device 30 so that the second solenoid valve 112 receives compressed air 302 supplied by the compressed air supply device 30 through the second air inlet 1122. The second main air outlet 1124 is connected to the throttle valve 110, and the second secondary exhaust port 1126 is closed. When the microprocessor 102 detects that the sewing machine start pedal 202 is pressed, the microprocessor 102 drives the first solenoid valve 104 to open the first main air outlet 1044 (e.g., ...). Figure 4 (on the left) so that the compressed air 302 provided by the compressed air supply device 30 flows into the vortex tube 106 through the first air inlet 1042, the first solenoid valve 104, the first main air outlet 1044 and the compressed air inlet 1064, and the microprocessor 102 stops driving the second solenoid valve 112 to close the second main air outlet 1124 (as shown on the left). Figure 10(on the right side). When the microprocessor 102 detects that the sewing machine start pedal 202 is not pressed (e.g., the user stops pressing the sewing machine start pedal 202), the microprocessor 102 stops driving the sewing machine servo motor 204 to stop driving the rotary hook 206 to rotate, and the microprocessor 102 drives the second solenoid valve 112 to open the second main air outlet 1124 (e.g., on the right side). Figure 10 (on the left) so that the compressed air 302 provided by the compressed air supply device 30 flows into the vortex tube 106 through the second air inlet 1122, the second solenoid valve 112, the second main air outlet 1124, the throttle valve 110, and the compressed air inlet 1064, and the microprocessor 102 stops driving the first solenoid valve 104 to close the first main air outlet 1044 (as shown on the left). Figure 4 (on the right side); the throttle valve 110 is used to reduce the flow rate of the compressed air 302 through the throttle valve 110, so the flow rate of the compressed air 302 delivered from the throttle valve 110 to the vortex tube 106 (at which time the microprocessor 102 drives the second solenoid valve 112 and stops driving the first solenoid valve 104) will be less than the flow rate of the compressed air 302 delivered from the first main air outlet 1044 to the vortex tube 106 (at which time the microprocessor 102 drives the first solenoid valve 104 and stops driving the second solenoid valve 112). When the sewing device 20 is off, the first solenoid valve 104 and the second solenoid valve 112 are stopped being driven (e.g. Figure 4 The right side and Figure 10 (to the right) so that the vortex tube 106 stops outputting the cold air 304 toward the rotary shuttle 206.
[0075] Please refer to Figure 11 This is an operation flowchart of the third embodiment of the rotary shuttle electronically controlled heat dissipation device 10 of the present invention; please also refer to... Figure 9 The operation flow of the third embodiment of the rotary shuttle electronically controlled heat dissipation device 10 of the present invention includes the following steps:
[0076] Step S1102: Determine whether the sewing device 20 is turned on; if yes, the operation process proceeds to step S1104; if no, the operation process proceeds to step S1110.
[0077] Step S1104: Determine whether the sewing machine start pedal 202 has been pressed by the front pedal; if yes, the operation process proceeds to step S1106; if no, the operation process proceeds to step S1108.
[0078] Step S1106: Drive the sewing machine servo motor 204 to rotate the rotary hook 206, and drive the first solenoid valve 104 to output the cold air 304 towards the rotary hook 206 through the vortex tube 106.
[0079] Step S1108: Stop driving the sewing machine servo motor 204 to stop driving the rotary hook 206 to rotate, and drive the second solenoid valve 112 to cause the vortex tube 106 to output less of the cold air 304 (that is, less than the cold air 304 output in step S1106) toward the rotary hook 206.
[0080] Step S1110: Stop driving the first solenoid valve 104 and the second solenoid valve 112 so that the vortex tube 106 stops outputting the cold air 304 toward the rotary shuttle 206.
[0081] The advantage of this invention lies in its ability to effectively reduce the temperature of the sewing machine's rotary hook. Utilizing the principle of vortex tubes, this invention allows for rapid cooling of the rotary hook, ensuring its normal operation and extending its service life. Furthermore, the addition of an electronic control program achieves energy conservation and environmental protection.
[0082] The above description is merely an embodiment of the present invention and should not be construed as limiting the scope of the invention. All equivalent variations and modifications made according to the claims of the present invention should still fall within the scope of protection intended by the patent of the present invention. The present invention may also have other various embodiments. Without departing from the spirit and essence of the present invention, those skilled in the art can make various corresponding changes and modifications according to the present invention, but these corresponding changes and modifications should all fall within the protection scope of the appended claims. In summary, the structure of the present invention has not been seen in similar products or publicly used, and possesses industrial applicability, novelty, and progress.
Claims
1. A rotary hook electronically controlled heat dissipation device, applied to a sewing machine and a compressed air supply device, the sewing machine comprising a sewing machine start pedal, a sewing machine servo motor, and a rotary hook, characterized in that, The rotary shuttle electronically controlled heat dissipation device includes: A microprocessor; A first solenoid valve is electrically connected to the microprocessor and is connected to the compressed air supply device. A vortex tube is connected to the first solenoid valve; and A throttle valve is connected to the vortex tube. The vortex tube includes a compressed air inlet, which is connected to the first solenoid valve. The first solenoid valve includes a first main air outlet and a first primary air outlet. The first main air outlet is connected to the compressed air inlet, and the first primary air outlet is connected to the throttle valve. When the microprocessor detects that the sewing machine start pedal is pressed, the microprocessor drives the sewing machine servo motor to drive the rotary hook to rotate, and the microprocessor drives the first solenoid valve to open the first main air outlet and close the first air outlet so that the compressed air supplied by the compressed air supply device flows into the vortex tube through the first solenoid valve, the first main air outlet and the compressed air inlet, and the vortex tube uses the compressed air to generate cold air and outputs the cold air toward the rotary hook; Specifically, when the microprocessor detects that the sewing machine start pedal is not pressed, the microprocessor stops driving the sewing machine servo motor to stop driving the rotary hook to rotate, and the microprocessor stops driving the first solenoid valve to close the first main air outlet and open the first air outlet so that the compressed air supplied by the compressed air supply device flows into the vortex tube through the first solenoid valve, the first air outlet, the throttle valve and the compressed air inlet; the throttle valve is used to reduce the flow rate of the compressed air through the throttle valve.
2. The rotary shuttle electronically controlled heat dissipation device according to claim 1, characterized in that, It also includes: A cold air delivery pipe, which is connected to the vortex tube, The vortex tube further includes: A cold air outlet, which is connected to the cold air delivery pipe. The vortex tube outputs cold air toward the rotary shuttle through the cold air outlet and the cold air delivery pipe.
3. The rotary shuttle electronically controlled heat dissipation device according to claim 2, characterized in that, The vortex tube further includes: One hot air outlet, When the vortex tube uses compressed air to generate cold air, it simultaneously generates hot air and outputs the hot air through the hot air outlet.
4. The rotary shuttle electronically controlled heat dissipation device according to claim 3, characterized in that, The first solenoid valve further includes: A first air inlet is connected to the compressed air supply device so that the first solenoid valve receives the compressed air supplied by the compressed air supply device through the first air inlet.
Citation Information
Patent Citations
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