Carbon fiber bicycle hub temperature and pressure control device and method

Abstract

The present invention relates to the technical field of carbon fiber processing, and in particular to a carbon fiber bicycle wheel hub temperature and air pressure control device and method, comprising a base and a closed cover: the base is provided with a pressure mechanism; the base is provided with a lifting mechanism, the lifting mechanism comprises two side rails, the side rails are fixedly connected to the upper surface of the base; the base is provided with a control mechanism, the control mechanism is composed of an air pressure control component and a temperature control component, the air pressure control component and the temperature control component are both provided in the base, the air pressure control component comprises an air groove and a functional groove opened in the base, the base is fixedly connected with a sliding sleeve, and the sliding sleeve is sealed and slidably connected with a slider. The advantages are: the device of the present invention can ensure stable temperature and air pressure, thereby ensuring a good curing effect, and can automatically control the temperature and air pressure, so that the labor intensity in the processing process is reduced and the degree of automation is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of carbon fiber processing, and in particular to a carbon fiber bicycle hub temperature and pressure control device and method. Background Art

[0002] Bicycles are one of the common means of transportation in our lives. They are not only green and environmentally friendly, but also can strengthen the body. Bicycles can not only be used for daily transportation, but also as a physical exercise. Bicycles are composed of multiple parts, generally composed of a frame, a wheel set, a transmission component, etc., and the wheel set is generally composed of a tire and a hub. The hub is an important component of the wheel set, which is used to support the weight of the entire bicycle and the human body. Therefore, the hub generally needs to have a higher strength, and the traditional bicycle hub is generally made of stainless steel or aluminum alloy. To have higher strength, it will have a greater weight, which will increase the overall weight of the bicycle. Nowadays, the use of a new material, carbon fiber, makes the bicycle hub have higher strength and is more lightweight. The carbon fiber hub needs to go through a curing process during the production process, which is also an important step in carbon fiber molding. The curing process needs to be carried out at a certain temperature and air pressure.

[0003] In the prior art, certain changes in temperature and air pressure may occur during the curing process. If the changes exceed the range, it will have a certain impact on the performance of the carbon fiber after molding. This requires processing personnel to always pay attention to the air pressure and temperature and make timely adjustments. The labor intensity is high, and if not adjusted in time, the performance will be affected. Summary of the invention

[0004] The purpose of the present invention is to solve the problems in the prior art and to propose a carbon fiber bicycle wheel hub temperature and pressure control device and method.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A carbon fiber bicycle hub temperature and air pressure control device, comprising a base and a closed cover:

[0007] A pressure mechanism is provided on the base;

[0008] The base is provided with a lifting mechanism, the lifting mechanism comprising two side rails, and the side rails are fixedly connected to the upper surface of the base;

[0009] A control mechanism is arranged in the base, and the control mechanism is composed of an air pressure control component and a temperature control component, and the air pressure control component and the temperature control component are both arranged in the base, and the air pressure control component includes an air groove and a function groove opened in the base, and the base is fixedly connected with a sliding sleeve through and through, and the sliding sleeve is sealingly and slidably connected with a slider, and the side wall of the slider is fixedly connected with a first switch, and the base is rotatably connected with a rotating shaft through a bearing, and the temperature control component includes a slide plate, and the slide plate is slidably connected in the function groove, and the side wall of the slide plate close to the sliding sleeve is fixedly connected with a fixed column, and the fixed column is slidably connected with a top block, and the top block is a hollow structure and the inner side wall is fixedly connected with a second switch;

[0010] The closed cover is provided with a vacuum mechanism;

[0011] A sealing mechanism is arranged in the base.

[0012] Furthermore, the vacuum mechanism includes a vacuum pump, which is fixedly connected to the upper surface of the sealed cover, and the input end of the vacuum pump is fixedly connected to a first tube, the first tube is fixedly connected to the top wall of the sealed cover, and a second tube is fixedly connected to the top wall of the sealed cover, a first solenoid valve is arranged in the first tube, and a second solenoid valve is sealingly and slidingly connected in the second tube, the first solenoid valve, the vacuum pump and the first switch are electrically connected through a wire, and the second solenoid valve and the second switch are electrically connected through a wire.

[0013] Furthermore, the air pressure control component also includes a piston, the piston seal is slidably connected in the air groove, the base seal is penetrated and slidably connected with a sliding column, one end of the sliding column extends into the air groove and is fixedly connected to the piston side wall, and the other end extends into the functional groove, the side wall of the sliding column on one side of the functional groove is fixedly connected with a first rack, the side wall of the slide plate close to the sleeve is fixedly connected with a second rack, the end of the rotating shaft located in the functional groove is fixedly connected with a gear, the first rack and the second rack are meshed with the gear together, and the base is provided with a plurality of first holes, and the first holes connect the air groove with the outside.

[0014] Furthermore, the temperature control component also includes a trigger plate, which is slidably connected in the top block, and one end of the fixed column located in the top block is fixedly connected to the side wall of the trigger plate, a plurality of second springs are fixedly connected between the trigger plate and the inner wall of the top block, a plurality of heat-conducting fins are fixedly connected through the top wall of the sliding sleeve, and the sliding sleeve is filled with phase change fluid.

[0015] Furthermore, a fixing plate is fixedly connected to the inner side wall of the functional groove, a plurality of guide rods are fixedly connected to the side wall of the fixing plate close to the slide plate, the guide rods are slidably connected to the slide plate, and a first spring is fixedly connected between the guide rods and the slide plate.

[0016] Furthermore, the pressure mechanism includes a mounting seat, which is fixedly connected to the upper surface of the base, and the side walls of the mounting seat are fixedly connected to multiple side columns, and the side columns are commonly fixedly connected to a top cover, and multiple vertical rods are fixedly connected between the top cover and the mounting seat, each of the vertical rods is slidably connected to multiple sliding seats, and the corresponding sliding seats are commonly fixedly connected to a pressure seat, and a hydraulic cylinder is arranged at the mounting seat, and the output shaft of the hydraulic cylinder is fixedly connected to a pressure block.

[0017] Furthermore, the lifting mechanism also includes a servo motor, which is fixedly connected to the upper surface of one of the side rails via a bracket, and one of the top walls of the side rails is rotatably connected to a first screw via a bearing, and the first screw is fixedly connected to the output shaft of the servo motor, and a lifting block is slidably connected inside the side rail, and the first screw is threadedly connected to the corresponding lifting block, and the lifting block is fixedly connected to the side wall of the closed cover.

[0018] Further, the sealing mechanism includes a cavity opened in the base, a pump plate is sealingly and slidably connected in the cavity, the rotating shaft extends through the cavity and is fixedly connected to a threaded barrel, the threaded barrel is threadedly connected to a second screw, the second screw is fixedly connected to the upper surface of the pump plate, the base is opened with a circular groove, a top ring is sealingly and slidably connected in the circular groove, a sealant is fixedly connected to the upper surface of the top ring, a plurality of second holes are opened in the base, the second holes connect the circular groove with the cavity, and the circular groove and the cavity are both filled with hydraulic oil.

[0019] Furthermore, the phase change liquid is a mixed solution of ethylene glycol and water.

[0020] The present invention also provides a method for controlling the temperature and air pressure of a carbon fiber bicycle hub, comprising the following steps:

[0021] S1. Preparation before processing: placing the raw material in the pressure mechanism and pressurizing it through the pressure mechanism, and then lowering the sealed cover through the lifting mechanism to make the space where the pressure mechanism is located airtight;

[0022] S2, processing stage: after the airtight cover is lowered, the air pressure inside the airtight cover is reduced through the vacuum mechanism, and the airtight cover is heated to perform processing at a certain air pressure and temperature;

[0023] S3, adjustment stage: when the temperature and air pressure change, and the air pressure and temperature are not within the appropriate range, the temperature control component and the air pressure control component adjust the temperature and air pressure in the closed cover accordingly to keep the temperature and air pressure within the appropriate range;

[0024] S4, post-processing stage: After the processing is completed, the sealing cover is raised by the lifting mechanism, and the pressure applied by the pressure mechanism is released, and the processed carbon fiber bicycle wheel hub is removed for further processing.

[0025] The present invention has the following advantages:

[0026] 1. During the processing, the air pressure in the closed cover is reduced by the vacuum pump. As the air pressure is reduced, the piston slides, and the first rack, the second rack and the gear are meshed to make the slide slide. The slide will overcome the elastic force of the first spring and slide. As the air pressure decreases, the first spring is further compressed until the slide triggers the first switch. At this time, the vacuum pump will stop working, so that the equipment can stop automatically after the air pressure reaches a certain level;

[0027] 2. During the curing process, when the internal pressure decreases, the slide plate will slide under the elastic force of the first spring and separate from the first switch. At this time, the vacuum pump will start again, reducing the pressure in the closed cover until the first switch is pressed again, so that the equipment can monitor the pressure in the closed cover in real time and automatically adjust the pressure when the pressure increases;

[0028] 3. During the curing process, the temperature in the closed cover will be introduced into the phase change liquid through the heat conduction fins, causing the state of the phase change liquid to change. The internal temperature can be monitored through the change in the state of the phase change liquid, and the change in the state of the phase change liquid will cause the position of the slider to change. The change in the position of the slider will adjust the pressure in the closed cover accordingly. By adjusting the pressure, the internal temperature is adjusted so that the curing process is within the appropriate temperature range to ensure the curing effect;

[0029] 4. When the airtight cover is evacuated by the vacuum pump, the sliding of the piston causes the first rack to move and drive the gear to rotate. The gear drives the rotating shaft to rotate, and the threaded barrel rotates. The rotation of the threaded barrel causes the second screw to descend through the threaded connection, thereby causing the pump plate to descend. The hydraulic oil exerts force on the top ring, and then on the sealant, so that the pressure between the sealant and the airtight cover increases, thereby sealing the airtight cover and sealing the inside of the airtight cover;

[0030] 5. By changing the internal pressure, the pressure between the sealant and the sealed cover is changed, so that the smaller the internal pressure is, the greater the pressure between the sealant and the sealed cover is. That is, the greater the internal and external pressure difference is, the greater the pressure between the sealant and the sealed cover is, the better the sealing effect is, and the more effective it is to avoid leakage;

[0031] 6. The equipment of the present invention can automatically control the temperature and air pressure during the curing process of the carbon fiber wheel hub, without the need for manual monitoring and adjustment at all times, which greatly reduces the processing labor intensity and makes the equipment more automated. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a structural schematic diagram of a carbon fiber bicycle wheel hub temperature and pressure control device proposed by the present invention;

[0033] Figure 2 This is a schematic diagram of the internal structure of a carbon fiber bicycle wheel hub temperature and air pressure control device proposed by the present invention;

[0034] Figure 3 for Figure 2 A in the enlarged view;

[0035] Figure 4 This is a schematic structural diagram of a pressure mechanism in a carbon fiber bicycle wheel hub temperature and air pressure control device proposed by the present invention;

[0036] Figure 5 This is a structural schematic diagram of a base in a carbon fiber bicycle hub temperature and air pressure control device proposed by the present invention;

[0037] Figure 6 This is a schematic diagram of the internal structure of a carbon fiber bicycle hub temperature and air pressure control device under the cross section of the base;

[0038] Figure 7 for Figure 6 The enlarged view of point B in the figure;

[0039] Figure 8 This is a schematic diagram of the internal structure of another cross section of the base in a carbon fiber bicycle hub temperature and air pressure control device proposed by the present invention;

[0040] Fig. 9 The present invention provides a schematic diagram of the internal structure of a carbon fiber bicycle hub temperature and pressure control device under the longitudinal section of the base.

[0041] In the figure: 1, base; 2, side rail; 3, servo motor; 4, first screw; 5, lifting block; 6, closed cover; 7, vacuum pump; 8, first tube; 9, second tube; 10, first solenoid valve; 11, second solenoid valve; 12, air groove; 13, function groove; 14, sliding column; 15, piston; 16, first rack; 17, slide plate; 18, second rack; 19, rotating shaft; 20, gear; 21, sliding sleeve; 22, slider; 23, first switch; 24, fixed plate; 25, guide rod; 26 , first spring; 27, fixed column; 28, top block; 29, trigger plate; 30, second spring; 31, second switch; 32, phase change liquid; 33, heat conducting fins; 34, cavity; 35, threaded barrel; 36, second screw; 37, circular groove; 38, top ring; 39, sealant; 40, first hole; 41, second hole; 42, mounting seat; 43, side column; 44, top cover; 45, vertical rod; 46, hydraulic cylinder; 47, pressure block; 48, sliding seat; 49, pressure seat; 50, pump plate. DETAILED DESCRIPTION

[0042] The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.

[0043] Reference Figure 1-9 , a carbon fiber bicycle wheel hub temperature and pressure control device, comprising a base 1 and a closed cover 6, wherein the top wall of the closed cover 6 is provided with a heating wire for heating;

[0044] A pressure mechanism is provided on the base 1;

[0045] A lifting mechanism is provided on the base 1, and the lifting mechanism includes two side rails 2, and the side rails 2 are fixedly connected to the upper surface of the base 1;

[0046] A control mechanism is arranged in the base 1, and the control mechanism is composed of an air pressure control component and a temperature control component. The air pressure control component and the temperature control component are arranged in the base 1. The air pressure control component includes an air groove 12 and a functional groove 13 opened in the base 1. A sliding sleeve 21 is fixedly connected to the base 1, and the sliding sleeve 21 is sealed and slidably connected to a slider 22. The cross section of the slider 22 is T-shaped (such as Figure 3 As shown, the side wall of the slider 22 is fixedly connected to a first switch 23, the base 1 is rotatably connected to a rotating shaft 19 through a bearing, the temperature control assembly includes a slide plate 17, the slide plate 17 is slidably connected in the functional groove 13, the side wall of the slide plate 17 close to the sliding sleeve 21 is fixedly connected to a fixed column 27, and the fixed column 27 is slidably connected to a top block 28 (as shown Figure 7 As shown), the top block 28 is a hollow structure and the inner wall is fixedly connected to the second switch 31;

[0047] A vacuum mechanism is provided on the closed cover 6;

[0048] A sealing mechanism is arranged inside the base 1 .

[0049] The vacuum mechanism includes a vacuum pump 7, which is fixedly connected to the upper surface of the sealed cover 6. A first tube 8 is fixedly connected to the input end of the vacuum pump 7. The first tube 8 is fixedly connected to the top wall of the sealed cover 6 through a penetration, and a second tube 9 is fixedly connected to the top wall of the sealed cover 6 through a penetration. A first solenoid valve 10 is arranged in the first tube 8, and a second solenoid valve 11 is sealed and slidably connected in the second tube 9. The first solenoid valve 10 is a normally closed solenoid valve, which is opened when powered on, and the second solenoid valve 11 is a normally open solenoid valve, which is closed when powered on. The first solenoid valve 10, the vacuum pump 7 and the first switch 23 are electrically connected through a wire, and the second solenoid valve 11 and the second switch 31 are electrically connected through a wire. When the first switch 23 is pressed, the vacuum pump 7 and the first solenoid valve 10 can be powered off, and when the second switch 31 is pressed, the second solenoid valve 11 can be powered off.

[0050] The air pressure control assembly also includes a piston 15, which is sealed and slidably connected in the air groove 12. The base 1 is sealed and penetrated and slidably connected with a sliding column 14. One end of the sliding column 14 extends through the air groove 12 and is fixedly connected to the side wall of the piston 15, and the other end extends through the functional groove 13. The side wall of the sliding column 14 on one side of the functional groove 13 is fixedly connected with a first rack 16 (such as Figure 8 As shown, the side wall of the slide plate 17 near the sliding sleeve 21 is fixedly connected to the second rack 18, the end of the rotating shaft 19 located in the functional groove 13 is fixedly connected to the gear 20, the first rack 16 and the second rack 18 are meshed with the gear 20, and the base 1 is provided with a plurality of first holes 40 (as shown in FIG. Figure 5 As shown), the first hole 40 connects the air groove 12 with the outside. If the pressure decreases, the slide plate 17 slides to a certain extent due to the pressure reduction, so that the top block 28 is separated from the first switch 23. After the first switch 23 is released, the vacuum pump 7 and the first solenoid valve 10 are powered on again. At this time, the vacuum pump 7 is started again to evacuate air, so that the pressure in the closed cover 6 is reduced until the top block 28 presses the first switch 23 again. At this time, the vacuum pump 7 and the first solenoid valve 10 are closed again, so that when the pressure in the closed cover 6 increases, it is automatically evacuated and the pressure is reduced to ensure that it is always in a suitable pressure range, thereby ensuring the curing effect.

[0051] The temperature control assembly also includes a trigger plate 29, which is slidably connected to the top block 28. One end of the fixed column 27 located in the top block 28 is fixedly connected to the side wall of the trigger plate 29. A plurality of second springs 30 (such as Figure 7 As shown in FIG. 1 ), the minimum deformation pressure of the second spring 30 is greater than the trigger pressure of the first switch 23, thereby ensuring that after the top block 28 contacts the first switch 23, the first switch 23 will be triggered instead of causing the trigger plate 29 to slide. A plurality of heat-conducting fins 33 (such as Figure 5 As shown in the figure, the heat-conducting fins 33 and the slider 22 are both made of copper alloy, which can better guide the temperature in the closed cover 6 into the sliding sleeve 21. The sliding sleeve 21 is filled with a phase-change liquid 32. The phase-change liquid 32 is filled in the space between the slider 22 and the first switch 23 of the sliding sleeve 21, and the portion between the slider 22 and the heat-conducting fins 33 is filled with heat-conducting oil. The boiling point of the heat-conducting oil is generally 400°C, so it will not have a significant impact on the pressure in the sliding sleeve 21. The phase-change liquid 32 is a mixed solution of ethylene glycol and water. The boiling point of the mixed solution of ethylene glycol and water is about 130°C, while the carbon fiber The optimum solidification temperature of the phase change liquid 32 is 100°C-150°C, so that the state of the phase change liquid 32 can produce obvious state changes near the optimum solidification temperature, thereby monitoring the change of the internal temperature. If the temperature in the closed cover 6 is within the appropriate temperature range, the gas-liquid ratio of the phase change liquid 32 is at a relatively stable value, which makes the position of the slider 22 stable. If the temperature drops out of the appropriate temperature range, part of the gaseous substance of the phase change liquid 32 will liquefy, so that the pressure in the sleeve 21 is reduced, so that the slider 22 slides toward the outside of the sleeve 21. At this time, the sliding of the slider 22 will make The top block 28 slides relative to the fixed column 27, so that the second switch 31 contacts the trigger plate 29. After the second switch 31 is triggered, the second solenoid valve 11 is powered off and opened, and the outside air enters the closed cover 6, causing the internal pressure to increase slightly. From the Clapeyron equation, it can be seen that: PV=nRT. Since the size of the space is fixed, V, n, and R are all constant values. At this time, the pressure increases, which will increase the temperature in the space, and then increase the temperature in the closed cover 6. If the temperature rises beyond the appropriate temperature range, part of the liquefied substance of the phase change liquid 32 will gasify, causing The pressure inside the internal sleeve 21 increases, and the slider 22 slides into the inside of the sleeve 21, thereby separating the first switch 23 from the top block 28. At this time, the vacuum pump 7 is started again to evacuate air, so that the pressure inside the closed cover 6 is further reduced. As can be seen from the above, a decrease in pressure will reduce the temperature in the space, and then reduce the temperature inside the closed cover 6, until the top block 28 triggers the first switch 23 again, so that the equipment can automatically adjust the air pressure according to the temperature, and adjust the internal temperature by changing the air pressure, so that it is at a suitable temperature for curing, thereby ensuring the curing effect.

[0052] It should be noted that a hole is opened on the side wall of the sleeve 21, so that the vertical part of the sleeve 21 is connected to the outside world, ensuring that the slider 22 can slide freely in the sleeve 21. At the same time, when the air pressure is adjusted to control the temperature, the range after the air pressure adjustment is within the appropriate air pressure range, avoiding the pressure change caused by the air pressure adjustment affecting the curing effect.

[0053] A fixing plate 24 is fixedly connected to the inner wall of the functional groove 13, and a plurality of guide rods 25 are fixedly connected to the side wall of the fixing plate 24 close to the slide plate 17. The setting of the guide rods 25 ensures the stable sliding of the slide plate 17. The guide rods 25 are slidably connected with the slide plate 17, and a first spring 26 is fixedly connected between the guide rods 25 and the slide plate 17. The stiffness coefficient of the first spring 26 is relatively large, so that a large force is required to overcome the elastic force of the first spring 26, thereby ensuring the low pressure in the closed cover 6.

[0054] The pressure mechanism includes a mounting seat 42, the mounting seat 42 is fixedly connected to the upper surface of the base 1, the side wall of the mounting seat 42 is fixedly connected to a plurality of side columns 43, the side columns 43 are fixedly connected to a top cover 44, a plurality of vertical rods 45 are fixedly connected between the top cover 44 and the mounting seat 42, each vertical rod 45 is slidably connected to a plurality of sliding seats 48, and the corresponding sliding seats 48 are fixedly connected to a pressure seat 49, a hydraulic cylinder 46 is provided at the mounting seat 42, the output shaft of the hydraulic cylinder 46 is fixedly connected to a pressure block 47, and the pressure seat 49 is provided with a plurality of small holes (such as Figure 4 As shown), ensure that the temperature distribution of the pressure seat 49 is more uniform.

[0055] The lifting mechanism also includes a servo motor 3, which is fixedly connected to the upper surface of one of the side rails 2 through a bracket, and a first screw 4 is rotatably connected to the top wall of one of the side rails 2 through a bearing, and the first screw 4 is fixedly connected to the output shaft of the servo motor 3, and a lifting block 5 is slidably connected inside the side rail 2, and the first screw 4 is threadedly connected to the corresponding lifting block 5, and the lifting block 5 is fixedly connected to the side wall of the sealed cover 6.

[0056] The sealing mechanism includes a cavity 34 (such as Fig. 9As shown), a pump plate 50 is sealingly and slidably connected in the cavity 34, the rotating shaft 19 extends through the cavity 34 and is fixedly connected with a threaded barrel 35, the threaded barrel 35 is threadedly connected with a second screw 36, the second screw 36 is fixedly connected to the upper surface of the pump plate 50, the base 1 is provided with a circular groove 37, a top ring 38 is sealingly and slidably connected in the circular groove 37, a sealant 39 is fixedly connected to the upper surface of the top ring 38, a plurality of second holes 41 are provided in the base 1, the second holes 41 connect the circular groove 37 with the cavity 34, the circular groove 37 and the cavity 34 are both filled with hydraulic oil, the hydraulic oil in the circular groove 37 is filled between the top ring 38 and the inner bottom wall of the circular groove 37, the hydraulic oil in the cavity 34 is filled between the pump plate 50 and the inner bottom wall of the cavity 34, and at the same time, the second hole 41 is also correspondingly filled with hydraulic oil The contact area between the top ring 38 and the hydraulic oil is larger than the contact area between the pump plate 50 and the hydraulic oil, so that the force applied at the pump plate 50 can generate a greater force at the top ring 38, thereby achieving better sealing. During the process of pumping and reducing pressure, when the first rack 16 drives the gear 20 to rotate, it will also synchronously drive the threaded barrel 35 to rotate through the rotating shaft 19. The threaded barrel 35 causes the second screw 36 to descend through a threaded connection, thereby driving the pump plate 50 to descend. The pump plate 50 will transfer the force to the top ring 38 through the hydraulic oil and apply it to the sealant 39, so that the pressure between the sealant 39 and the sealing cover 6 increases, thereby improving the sealing of the gap between the two and avoiding leakage. The greater the internal and external pressure difference, the greater the pressure between the sealant 39 and the sealing cover 6, and the better the sealing effect.

[0057] The present invention also provides a method for controlling the temperature and air pressure of a carbon fiber bicycle hub, comprising the following steps:

[0058] S1. Preparation before processing: placing the raw material in the pressure mechanism and pressurizing it through the pressure mechanism, and then lowering the sealing cover 6 through the lifting mechanism to make the space where the pressure mechanism is located airtight;

[0059] S2, processing stage: after the closed cover 6 is lowered, the air pressure in the closed cover 6 is reduced by a vacuum mechanism, and the closed cover 6 is heated to perform processing at a certain air pressure and temperature;

[0060] S3, adjustment stage: when the temperature and air pressure change, and the air pressure and temperature are not within the appropriate range, the temperature control component and the air pressure control component adjust the temperature and air pressure in the closed cover 6 accordingly, so that the temperature and air pressure are within the appropriate range;

[0061] S4, post-processing stage: After the processing is completed, the sealing cover 6 is raised by the lifting mechanism, and the pressure applied by the pressure mechanism is released, and the processed carbon fiber bicycle wheel hub is taken down for further processing.

[0062] In the present invention, the wheel hubs of the carbon fiber to be cured are placed in groups on the pressure seat 49, and the hydraulic cylinder 46 is started at the same time. The hydraulic cylinder 46 drives the pressure block 47 to rise, so that the pressure seats 49 are close to each other and squeezed against each other to apply pressure to the carbon fiber wheel hub. When the pressure reaches the required level, the hydraulic cylinder 46 is stopped and the servo motor 3 is turned on. The servo motor 3 drives the first screw 4 to rotate, and the lifting block 5 is lowered through the threaded connection, thereby driving the closed cover 6 to descend until the closed cover 6 contacts the sealant 39, and the inside of the closed cover 6 is heated by the heating wire on the closed cover 6.

[0063] At the same time, the initial state of the device is Figure 3 As shown, at this time, the first switch 23 and the fixed plate 24 are in a separated state, the vacuum pump 7 is turned on, the first solenoid valve 10 is powered on and opened, and the second solenoid valve 11 is powered on and closed. At this time, the vacuum pump 7 draws out the air in the closed cover 6, so that the air pressure in the closed cover 6 gradually decreases, and as the air pressure decreases, the piston 15 slides accordingly, and the sliding of the piston 15 drives the sliding column 14 to slide, thereby moving the first rack 16, driving the gear 20 meshing with it to rotate, and the rotation of the gear 20 will drive the second rack 18 to move, thereby sliding the slide plate 17, and the sliding of the slide plate 17 will compress the first spring 26. As the air pressure decreases, the slide plate 17 further compresses the first spring 26 until the top block 28 triggers the first switch 23. At this time, the first solenoid valve 10 is powered off and closed, and the vacuum pump 7 is powered off and stops working, so that the carbon fiber is cured at a certain air pressure and temperature.

[0064] During the curing process, if the pressure decreases, due to the pressure reduction, the slide plate 17 slides to a certain extent under the elastic force of the first spring 26, so that the top block 28 is separated from the first switch 23. After the first switch 23 is released, the vacuum pump 7 and the first solenoid valve 10 are energized again. At this time, the vacuum pump 7 starts again to evacuate air, so that the pressure in the closed cover 6 is reduced until the top block 28 presses the first switch 23 again, and the vacuum pump 7 and the first solenoid valve 10 are closed again.

[0065] During the curing process, the temperature in the sealed cover 6 is introduced into the phase change liquid 32 of the sliding sleeve 21 through the heat conducting fins 33 and the slider 22, so that the state of the phase change liquid 32 changes, and the gas-liquid ratio of the phase change liquid 32 changes. If the temperature in the sealed cover 6 is within the appropriate temperature range, the gas-liquid ratio of the phase change liquid 32 is at a relatively stable value, which makes the position of the slider 22 stable. If the temperature drops out of the appropriate temperature range, part of the gaseous substance of the phase change liquid 32 is liquefied, so that the pressure in the sliding sleeve 21 is reduced, so that the slider 22 moves to The sliding sleeve 21 slides externally, and the sliding of the slider 22 causes the top block 28 to slide relative to the fixed column 27, so that the second switch 31 contacts the trigger plate 29. After the second switch 31 is triggered, the second solenoid valve 11 is powered off and opened, and external air enters the closed cover 6, causing the internal pressure to increase slightly. From the Clapeyron equation, it can be seen that: PV=nRT. Since the size of the space is fixed, V, n, and R are all constants. At this time, the pressure increases, which will cause the temperature in the space to rise, and then the temperature in the closed cover 6 to rise.

[0066] If the temperature rises out of the appropriate temperature range, part of the liquefied material of the phase change liquid 32 will vaporize, causing the pressure inside the internal sleeve 21 to increase. At this time, the slider 22 slides toward the inside of the sleeve 21, thereby separating the first switch 23 from the top block 28. At this time, the vacuum pump 7 is started again to evacuate air, thereby further reducing the pressure inside the closed cover 6. As can be seen from the above, a decrease in pressure will reduce the temperature in the space, thereby reducing the temperature inside the closed cover 6 until the top block 28 triggers the first switch 23 again.

[0067] During the process of vacuuming and reducing the pressure, when the first rack 16 drives the gear 20 to rotate, it will also synchronously drive the threaded barrel 35 to rotate through the rotating shaft 19. The threaded barrel 35 causes the second screw 36 to descend through the threaded connection, thereby driving the pump plate 50 to descend. The pump plate 50 will transfer the force to the top ring 38 through the hydraulic oil and apply it to the sealant 39, so that the pressure between the sealant 39 and the sealing cover 6 increases, thereby improving the sealing of the gap between the two and avoiding leakage.

[0068] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A carbon fiber bicycle wheel hub temperature and pressure control device, comprising a base (1) and a closed cover (6), characterized in that: The base (1) is provided with a pressure mechanism; The base (1) is provided with a lifting mechanism, the lifting mechanism comprising two side rails (2), the side rails (2) being fixedly connected to the upper surface of the base (1); A control mechanism is arranged in the base (1), the control mechanism is composed of an air pressure control component and a temperature control component, the air pressure control component and the temperature control component are both arranged in the base (1), the air pressure control component comprises an air groove (12) and a function groove (13) provided in the base (1), a sliding sleeve (21) is fixedly connected through the base (1), a sliding block (22) is sealingly and slidably connected to the sliding sleeve (21), a first switch (23) is fixedly connected to the side wall of the sliding block (22), the base (1) is rotatably connected to a rotating shaft (19) through a bearing, the temperature control component comprises a sliding plate (17), the sliding plate (17) is slidably connected in the function groove (13), a fixed column (27) is fixedly connected to the side wall of the sliding plate (17) close to the sliding sleeve (21), a top block (28) is slidably connected through the fixed column (27), the top block (28) is a hollow structure and a second switch (31) is fixedly connected to the inner side wall; The sealed cover (6) is provided with a vacuum mechanism; A sealing mechanism is provided in the base (1); The vacuum mechanism comprises a vacuum pump (7), the vacuum pump (7) being fixedly connected to the upper surface of the sealed cover (6), the input end of the vacuum pump (7) being fixedly connected to a first tube (8), the first tube (8) being fixedly connected to the top wall of the sealed cover (6), the top wall of the sealed cover (6) being fixedly connected to a second tube (9), the first tube (8) being provided with a first solenoid valve (10), the second tube (9) being sealingly and slidably connected to a second solenoid valve (11), the first solenoid valve (10), the vacuum pump (7) and the first switch (23) being electrically connected via a wire, and the second solenoid valve (11) being electrically connected to the second switch (31) via a wire; The air pressure control assembly also includes a piston (15), the piston (15) is sealingly slidably connected in the air groove (12), the base (1) is sealingly penetrated and slidably connected with a sliding column (14), one end of the sliding column (14) extends through the air groove (12) and is fixedly connected to the side wall of the piston (15), and the other end extends through the functional groove (13), the side wall of the sliding column (14) located in the functional groove (13) is fixedly connected to a first rack (16), the side wall of the slide plate (17) close to the sliding sleeve (21) is fixedly connected to a second rack (18), one end of the rotating shaft (19) located in the functional groove (13) is fixedly connected to a gear (20), the first rack (16) and the second rack (18) are meshed with the gear (20), and the base (1) is provided with a plurality of first holes (40), and the first holes (40) connect the air groove (12) with the outside; The temperature control assembly further comprises a trigger plate (29), the trigger plate (29) being slidably connected in the top block (28), one end of the fixed column (27) located in the top block (28) being fixedly connected to the side wall of the trigger plate (29), a plurality of second springs (30) being fixedly connected between the trigger plate (29) and the inner side wall of the top block (28), a plurality of heat-conducting fins (33) being penetrated and fixedly connected to the top wall of the sliding sleeve (21), and the sliding sleeve (21) being filled with a phase change liquid (32).

2. A carbon fiber bicycle wheel hub temperature and pressure control device according to claim 1, characterized in that: A fixing plate (24) is fixedly connected to the inner side wall of the functional groove (13); a plurality of guide rods (25) are fixedly connected to the side wall of the fixing plate (24) close to the slide plate (17); the guide rods (25) and the slide plate (17) are slidably connected therethrough; and a first spring (26) is fixedly connected between the guide rods (25) and the slide plate (17).

3. The carbon fiber bicycle hub temperature and pressure control device according to claim 1, characterized in that: The pressure mechanism comprises a mounting seat (42), wherein the mounting seat (42) is fixedly connected to the upper surface of the base (1), a plurality of side columns (43) are fixedly connected to the side wall of the mounting seat (42), the side columns (43) are fixedly connected to a top cover (44), a plurality of vertical rods (45) are fixedly connected between the top cover (44) and the mounting seat (42), each of the vertical rods (45) is slidably connected to a plurality of sliding seats (48), and the corresponding sliding seats (48) are fixedly connected to a pressure seat (49), and a hydraulic cylinder (46) is provided at the mounting seat (42), and an output shaft of the hydraulic cylinder (46) is fixedly connected to a pressure block (47).

4. A carbon fiber bicycle wheel hub temperature and pressure control device according to claim 1, characterized in that: The lifting mechanism further comprises a servo motor (3), the servo motor (3) being fixedly connected to the upper surface of one of the side rails (2) via a bracket, a first screw rod (4) being rotatably connected to the top wall of one of the side rails (2) via a bearing, the first screw rod (4) being fixedly connected to the output shaft of the servo motor (3), a lifting block (5) being slidably connected inside the side rail (2), the first screw rod (4) being threadedly connected to the corresponding lifting block (5), and the lifting block (5) being fixedly connected to the side wall of the sealing cover (6).

5. The carbon fiber bicycle hub temperature and pressure control device according to claim 1, characterized in that: The sealing mechanism comprises a cavity (34) formed in the base (1), a pump plate (50) being sealingly and slidably connected in the cavity (34), the rotating shaft (19) extending through the cavity (34) and being fixedly connected to a threaded barrel (35), the threaded barrel (35) being threadedly connected to a second screw rod (36), the second screw rod (36) being fixedly connected to the upper surface of the pump plate (50), the base (1) being formed with a round groove (37), a top ring (38) being sealingly and slidably connected in the round groove (37), a sealant (39) being fixedly connected to the upper surface of the top ring (38), a plurality of second holes (41) being formed in the base (1), the second holes (41) connecting the round groove (37) with the cavity (34), the round groove (37) and the cavity (34) being filled with hydraulic oil.

6. A carbon fiber bicycle hub temperature and pressure control device according to claim 1, characterized in that: The phase change liquid (32) is a mixed solution of ethylene glycol and water.

7. A control method for the carbon fiber bicycle hub temperature and pressure control device according to any one of claims 1 to 6, characterized in that: The following steps are involved: S1. Preparation before processing: placing the raw material in the pressure mechanism and pressurizing it through the pressure mechanism, and then lowering the sealing cover (6) through the lifting mechanism to make the space where the pressure mechanism is located airtight; S2, processing stage: after the closed cover (6) is lowered, the air pressure in the closed cover (6) is reduced by a vacuum mechanism, and the inside of the closed cover (6) is heated, and processing is performed at a certain air pressure and temperature; S3, adjustment stage: when the temperature and air pressure change and the air pressure and temperature are not within the appropriate range, the temperature control component and the air pressure control component adjust the temperature and air pressure in the closed cover (6) accordingly to keep the temperature and air pressure within the appropriate range; S4, post-processing stage: After the processing is completed, the sealing cover (6) is raised by the lifting mechanism, and the pressure applied by the pressure mechanism is released, and the processed carbon fiber bicycle wheel hub is removed for further processing.

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