A new energy inverter component intelligent paint spraying and drying production line

Abstract

A kind of new energy inverter component intelligent paint spraying and drying production line suitable for, including: at least one conveying unit, paint spraying station and drying station distributed along the conveying chain conveying direction.The cooperation of the rotating member on the conveying unit and the drying station can realize the automatic turnover of the inverter component multiple times during conveying in the drying station, and cooperate with the hot air circulation in the drying station, which not only improves the air flow in the drying station, but also increases the effective contact area of the inverter component and air, further improves the drying effect of the inverter component.

Description

Technical Field

[0001] This invention belongs to the technical field of paint drying equipment, specifically relating to an intelligent paint drying production line suitable for new energy inverter components. Background Technology

[0002] A renewable energy inverter is a device used to convert renewable energy sources such as solar and wind power into electrical energy. The main function of an inverter is to convert direct current (DC) to alternating current (AC) for use in homes or industrial applications. Inverters typically consist of power semiconductor devices made of materials such as crystalline silicon and silicon carbide, achieving efficient power conversion through PWM modulation technology. During the production of renewable energy inverters, the inverter casing needs to be coated to improve its corrosion resistance, aesthetics, and weather resistance. After coating, a drying process is also required. To improve processing efficiency, the painting and drying stations can be designed on a single production line, using conveyor belts or other transport components to move the heat exchanger from the painting station to the drying station, and finally, the heat exchanger is output from the production line.

[0003] In existing production lines, when drying workpieces, the heating lamps are usually installed on both sides of the paint drying chamber, which may result in uneven drying effects on different sides of the workpiece.

[0004] Application publication number CN116921131A discloses an unmanned automatic spray painting and drying chamber, including a spray painting and drying chamber with a rotating structure and a drying structure. The rotating structure includes pulleys and a conveyor belt, with multiple mounting rods on the conveyor belt. Gears are rotatably connected to the mounting rods, and a second rack is installed on the spray painting and drying chamber for meshing. When a workpiece moves into the drying chamber, the moving gears mesh with the second rack, causing the gears to rotate, thereby rotating the workpiece and improving the drying effect.

[0005] However, the drawback of this device is that when the conveyor belt drives the gears, the meshing accuracy of the gears and racks is low due to the vibration of the machine itself and the weight of the workpiece, resulting in a low success rate and a high wear rate on the parts, thus making it not very practical. Summary of the Invention

[0006] To address the aforementioned problems, the purpose of this invention is to provide an intelligent spray painting and drying production line suitable for new energy inverter components. By cooperating with the rotating parts on the conveying unit and the drying station, the inverter components can be automatically rotated multiple times during the conveying process at the drying station. Combined with the hot air circulation within the drying station, this not only improves the airflow within the drying station but also increases the effective contact area between the inverter components and the air, further enhancing the drying effect on the inverter components.

[0007] To achieve the above objectives, the technical solution of the present invention is as follows:

[0008] A smart paint spraying and drying production line for new energy inverter components includes:

[0009] At least one conveying unit, each conveying unit including a conveying chain, rotating components spaced apart on the conveying chain, the rotating components including a fixed shaft, a cylinder rotatably connected to the fixed shaft, a torsion spring disposed between the fixed shaft and the cylinder and fixedly connected at both ends to the fixed shaft and the cylinder respectively, a traction rope with one end wound around the cylinder and the other end extending in a direction intersecting the conveying direction of the conveying chain, and a lifting component fixedly installed at the lower end of the cylinder for lifting inverter components;

[0010] Painting stations and drying stations are distributed along the conveyor chain direction;

[0011] The drying station is equipped with drying equipment and a shield. The shield covers the inverter component of the conveying unit located in the drying station. A wheel set is provided on the inner wall of the shield along the conveying direction. The wheel set includes at least two clamping wheels distributed in the vertical direction. The two clamping wheels work together to clamp the end of the traction rope away from the cylinder. An eccentric wheel is also provided on the side of the wheel set near the center of the shield and rotates coaxially with one of the clamping wheels. The maximum rotation radius of the eccentric wheel is greater than the radius of the clamping wheel that rotates coaxially with the eccentric wheel.

[0012] As a further preferred embodiment of the present invention, a drag-reducing wheel is provided on the surface of the eccentric wheel that contacts the traction rope.

[0013] As a further preferred embodiment of the present invention, it also includes a movable adjustment member, which acts between the wheel body of the eccentric wheel and the rotating shaft, so that the wheel body moves on the rotating shaft.

[0014] As a further preferred embodiment of the present invention, the movable adjusting member includes an external threaded section disposed on the rotating shaft of the eccentric wheel, and an adjusting cylinder disposed on the rotating shaft and having an internal thread matching the external threaded section, wherein the wheel body of the eccentric wheel is rotatably connected to the adjusting cylinder.

[0015] As a further preferred embodiment of the present invention, the movable adjusting member further includes an outer annular groove disposed on the adjusting cylinder, and the wheel body of the eccentric wheel is rotatably connected within the outer annular groove.

[0016] As a further preferred embodiment of the present invention, the movable adjustment member further includes ball bearings disposed on the outer ring groove wall and rollingly connected to the wheel body surface of the eccentric wheel.

[0017] As a further preferred embodiment of the present invention, the movable adjustment member further includes a handle disposed on the adjustment cylinder.

[0018] As a further preferred embodiment of the present invention, the drying equipment is provided with an air inlet assembly and a return air assembly. The air inlet assembly has an air supply pipe with both ends connected to the air outlet of the drying equipment and the internal space of the shield, respectively. The return air assembly has a return air pipe with both ends connected to the air inlet of the drying equipment and the internal space of the shield, respectively.

[0019] As a further preferred embodiment of the present invention, the drying station is further provided with a smoke exhaust assembly located at the upper end of the shield, the smoke exhaust assembly including at least a smoke exhaust pipe located at the upper end of the shield and communicating with the internal space of the shield.

[0020] In summary, the present invention has the following beneficial effects:

[0021] The paint drying production line provided by this invention, through the cooperation of the rotating parts on the conveying unit and the drying station, can realize the inverter components to complete multiple automatic flips during the conveying process at the drying station. Combined with the hot air circulation within the drying station, it not only improves the air flow within the drying station, but also increases the effective contact area between the inverter components and the air, further improving the drying effect on the inverter components. Attached Figure Description

[0022] Appendix Figure 1 This is a schematic diagram of the position and structure of the present invention from a top-down perspective.

[0023] Appendix Figure 2 This is a schematic diagram of the structure of the present invention located at the drying station from a top-down perspective.

[0024] Appendix Figure 3 This is a schematic diagram of the rotating component of the present invention.

[0025] Appendix Figure 4 This is a schematic diagram of the structure of the movable adjustment component of the present invention.

[0026] Appendix Figure 5 This is a schematic diagram of the structure of the present invention located at the drying station from a side view.

[0027] Attached diagram: Conveying unit 1, painting station 2, drying station 3;

[0028] Fixed shaft 101, cylinder 102, torsion spring 103, traction rope 104, lifting component 105, support plate 106, ball bearing 107, open wire groove 108, anti-slip strip 109;

[0029] Horizontal segment 104a, semi-circular arc segment 104b;

[0030] Drying equipment 301, shielding cover 302, wheel set 303, eccentric wheel 304, drag reducing wheel 305, movable adjustment component 306, air inlet assembly 307, air return assembly 308, smoke exhaust assembly 309;

[0031] External thread section 306a, adjusting cylinder 306b, outer ring groove 306c, ball bearing 306d, handle 306e. Detailed Implementation

[0032] In the description of this invention, it should be understood that the terms "upper," "lower," "inner," "outer," "left," "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used to facilitate the description of this invention and to simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0033] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, terms such as "set" and "connection" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0034] As attached Figures 1-5 As shown in the figure, this embodiment provides an intelligent spray painting and drying production line for new energy inverter components, including at least one conveying unit 1 and spray painting stations 2 and drying stations 3 distributed along the conveying direction of the conveying unit.

[0035] The inverter components to be processed can be sprayed at the painting station 2 and dried at the drying station 3. At least part of a single conveying unit 1 is arranged between the painting station 2 and the drying station 3 for conveying the inverter components from the painting station 2 to the drying station 3.

[0036] Each conveying unit 1 includes a conveying chain and rotating components spaced apart on the conveying chain. The rotating components include a fixed shaft 101, a cylinder 102 rotatably connected to the fixed shaft, a torsion spring 103 disposed between the fixed shaft and the cylinder and fixedly connected at both ends to the fixed shaft and the cylinder, a traction rope 104 with one end wound around the cylinder and the other end extending in a direction intersecting with the conveying direction of the conveying chain, and a lifting component 105 fixedly installed at the lower end of the cylinder for lifting inverter components.

[0037] The drying station 3 is equipped with a drying device 301 and a shielding cover 302. The shielding cover covers the inverter component of the conveying unit located in the drying station. A wheel set 303 is provided on the inner wall of the shielding cover along the conveying direction. The wheel set includes at least two clamping wheels distributed in the vertical direction. The two clamping wheels work together to clamp the end of the traction rope away from the cylinder. An eccentric wheel 304 is also provided on the side of the wheel set near the center of the shielding cover and rotates coaxially with one of the clamping wheels. The maximum rotation radius of the eccentric wheel is greater than the radius of the clamping wheel that rotates coaxially with the eccentric wheel.

[0038] In other words, the two clamping wheels can clamp the end of the traction rope 104 and drive the end along the conveying direction of the conveyor chain. During one rotation, the rotating eccentric wheel 304 has a process of lifting or pressing down the traction rope 104. During this process, the traction rope 104 is pulled, causing the cylinder 102 to rotate on the fixed shaft 101, which in turn drives the lifting component 105 to rotate the inverter component. When the eccentric wheel is not in contact with the traction rope 104, the torsion spring 103 can reset the cylinder 102.

[0039] It is understood that the eccentric wheel 304 rotates coaxially with a clamping wheel, but the rotational speeds can be the same or different. In some preferred embodiments, the rotational speed of the eccentric wheel 304 is greater than that of the clamping wheel, thereby ensuring that the traction rope can be acted upon by the eccentric wheel 304 at least once when passing a clamping wheel, achieving at least one flip and reset.

[0040] Specifically, in some embodiments, the extension direction of the traction rope 104 is perpendicular to the conveying direction of the conveyor chain.

[0041] Specifically, in some embodiments, the wheel set 303 is provided with two sets along the conveying direction, and the gap between the two clamping wheels of the wheel set at the front end of the conveying direction is greater than the gap between the two clamping wheels at the rear end of the conveying direction and less than or equal to the diameter of the traction rope. The advantage of this arrangement is that the front roller set can guide the traction rope and ensure that the rear roller set can accurately clamp the end of the traction rope.

[0042] Specifically, in some embodiments, the two sets of wheel sets 303 constitute a flipping structure, and multiple flipping structures can be set along the conveying direction to flip the inverter components multiple times during transportation, thereby promoting the drying effect.

[0043] Specifically, in some embodiments, the traction rope 104 includes a horizontal section 104a for passing through the gap between the two clamping wheels, and a semi-circular arc section 104b connected to the horizontal section and wound around the outer surface of the cylinder; the end of the semi-circular arc section away from the horizontal section is fixedly connected to the cylinder.

[0044] Furthermore, the material of the traction rope 104 can be selected from materials with shaping ability, such as rubber. The semicircular arc segment 104b is exactly a semicircle. When the semicircular arc segment 104b is fully straightened, the traction rope 104 can drive the cylinder 102 to complete a 180° rotation.

[0045] Specifically, in some embodiments, the rotating component further includes a support plate 106 disposed at the lower end of the fixed shaft 101 for supporting the cylinder 102, and balls 107 disposed on the support plate in a ring arrangement for rolling connection with the lower surface of the cylinder. This arrangement aims to improve both the load-bearing capacity of the cylinder and the stability of its rotation.

[0046] Specifically, in some embodiments, the rotating component further includes an open groove 108 disposed on the outer peripheral surface of the cylinder 102 for fixing the traction rope 104. This arrangement aims to ensure the path for the traction rope to straighten or rewind, thereby ensuring smooth operation during the next flipping operation.

[0047] Specifically, in some embodiments, the rotating component further includes an anti-slip strip 109 disposed on the side of the traction rope 104 near the cylinder 102. This arrangement aims to increase the friction between the traction rope and the cylinder, preventing slippage and improving the stability of the cylinder's rotation.

[0048] Specifically, in some embodiments, a drag-reducing wheel 305 is provided on the surface of the eccentric wheel 304 that contacts the traction rope 104.

[0049] Specifically, in some embodiments, a movable adjustment member 306 is also included, which acts between the wheel body of the eccentric wheel 304 and the rotating shaft, so that the wheel body moves on the rotating shaft.

[0050] In other words, the movable adjustment component 306 can adjust the position of the eccentric wheel 304 on the rotating shaft to adjust the length of the pulling traction rope 104, thereby adjusting the maximum angle of rotation of the cylinder 102.

[0051] Specifically, in some embodiments, the movable adjusting member 306 includes an external threaded section 306a disposed on the rotating shaft of the eccentric wheel, and an adjusting cylinder 306b disposed on the rotating shaft and having an internal thread matching the external threaded section, wherein the wheel body of the eccentric wheel is rotatably connected to the adjusting cylinder.

[0052] Specifically, in some embodiments, the movable adjustment member 306 further includes an outer annular groove 306c disposed on the adjustment cylinder 306b, and the wheel body of the eccentric wheel is rotatably connected in the outer annular groove.

[0053] Specifically, in some embodiments, the movable adjustment member 306 further includes ball bearings 306d disposed on the groove wall of the outer annular groove 306c and rolledly connected to the wheel body surface of the eccentric wheel.

[0054] Specifically, in some embodiments, the movable adjustment member 306 further includes a handle 306e disposed on the adjustment cylinder 306b.

[0055] When it is necessary to adjust the position of the eccentric wheel on the rotating shaft, hold the handle 306e to drive the adjusting cylinder 306b to rotate. Due to the meshing relationship between the adjusting cylinder 306b and the external thread section 306a, the adjusting cylinder drives the wheel located in the outer ring groove 306c to move on the rotating shaft, so that the position of the wheel on the traction rope changes.

[0056] Specifically, in some embodiments, the drying equipment 301 is provided with an air inlet assembly 307 and a return air assembly 308. The air inlet assembly has an air supply pipe with both ends communicating with the air outlet of the drying equipment and the internal space of the shield, respectively. The return air assembly has a return air pipe with both ends communicating with the air inlet of the drying equipment and the internal space of the shield, respectively. More preferably, both the air inlet assembly 307 and the return air assembly 308 are located at the lower end of the shield 302. The air supply pipe and the return air pipe are made of galvanized steel plate δ1.0. The fan model is 4-72-6A (Hangzhou Qixing, Jiangsu Yalin), with a power of 5.5KW, a speed of 1450 rpm, and an air volume of 13000 m3 / h.

[0057] Specifically, in some embodiments, the drying station 3 is further provided with a smoke exhaust assembly 309 located at the upper end of the shield 302. The smoke exhaust assembly includes at least a smoke exhaust pipe located at the upper end of the shield and communicating with the internal space of the shield. More preferably, the smoke exhaust pipe is made of 0.6-0.8mm 201 stainless steel plate and is equipped with a butterfly valve inside the pipe.

[0058] Specifically, in some embodiments, the painting station 2 is equipped with a painting device and a shielding cover. The shielding cover covers the inverter component of the conveying unit located in the drying station. A flipping drive structure distributed along the conveying direction is provided inside the painting space. The flipping drive structure includes another eccentric wheel, a fixed surface piece disposed at the lower end of the eccentric wheel and parallel to the lower surface of the eccentric wheel, a drive motor, a drive gear disposed at the output end of the drive motor, and a driven gear disposed on the rotating shaft of the eccentric wheel and meshing with the drive gear. When the geometric center of the eccentric wheel is located above the rotation center, there is a gap between the lower surface of the eccentric wheel and the fixed surface piece that allows the traction rope 104 to pass through.

[0059] Specifically, in some embodiments, the fixed surface member refers to a fixed member whose surface is parallel to the lower surface of the eccentric wheel, preferably a rotating wheel, wherein the rotation axis of the rotating wheel and the rotation axis of the eccentric wheel are located on the same vertical line.

[0060] Specifically, in some embodiments, as the gap between the eccentric wheel and the rotating wheel disappears and the eccentric wheel continues to rotate and pull the traction rope, the pressure of the eccentric wheel on the rotating wheel gradually increases, which can easily lead to wear on the rotating wheel. Therefore, an elastic ring is provided on the outer periphery of the rotating wheel to reduce this kind of wear.

[0061] The specific working principle of the rotating component driven by the flip-over drive structure is as follows: First, the rotating component is transported to the spraying area in the spraying space by the conveying unit 1. The conveying unit is stopped, and one side of the inverter component is sprayed. After the spraying is completed, the conveying unit 1 is started to continue to drive the inverter component forward until the traction rope 104 enters the center of the gap between the eccentric wheel surface and the fixed surface component. At this time, the conveying unit 1 is stopped, the drive motor is started, and the eccentric wheel is driven to rotate. The gap between the eccentric wheel and the fixed surface component gradually narrows until it presses the traction rope 104. The eccentric wheel continues to rotate, and under the action of friction, it drives the traction rope to move. The traction rope drives the cylinder to rotate until the cylinder rotates 180°. At this time, the inverter component also rotates 180°. The traction rope 104 is straightened, the drive motor is turned off, the eccentric wheel stops rotating, and finally the other side of the flipped inverter component is sprayed. After the double-sided spraying is completed, the drive motor reverses, the gap between the eccentric wheel and the fixed surface increases, and after the traction rope 104 loses the tension at the end, the cylinder 102 rotates under the action of the torsion spring 103, causing the inverter component to reverse to the initial state.

[0062] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

Claims

1. A smart paint spraying and drying production line suitable for new energy inverter components, characterized in that, include: At least one conveying unit (1), each conveying unit includes a conveying chain and rotating parts arranged at intervals on the conveying chain. The rotating parts include a fixed shaft (101), a cylinder (102) rotatably connected to the fixed shaft, a torsion spring (103) disposed between the fixed shaft and the cylinder and fixedly connected at both ends to the fixed shaft and the cylinder respectively, a traction rope (104) with one end wound around the cylinder and the other end extending in a direction intersecting with the conveying direction of the conveying chain, and a hoisting component (105) fixedly installed at the lower end of the cylinder for hoisting inverter components. The painting station (2) and drying station (3) are distributed along the conveying direction of the conveyor chain. The drying station (3) is equipped with a drying device (301) and a shield (302). The shield covers the inverter component of the conveying unit located in the drying station. A wheel set (303) is provided on the inner wall of the shield along the conveying direction. The wheel set includes at least two clamping wheels distributed in the vertical direction. The two clamping wheels work together on the end of the traction rope away from the cylinder to clamp the end of the traction rope. An eccentric wheel (304) is also provided on the side of the wheel set near the center of the shield and rotates coaxially with one of the clamping wheels. The maximum rotation radius of the eccentric wheel is greater than the radius of the clamping wheel that rotates coaxially with the eccentric wheel.

2. The intelligent spray painting and drying production line for new energy inverter components according to claim 1, characterized in that, A drag-reducing wheel (305) is provided on the surface of the eccentric wheel (304) that contacts the traction rope (104).

3. The intelligent spray painting and drying production line for new energy inverter components according to claim 1, characterized in that, It also includes a movable adjustment member (306), which acts between the wheel body of the eccentric wheel (304) and the rotating shaft, so that the wheel body moves on the rotating shaft.

4. The intelligent spray painting and drying production line for new energy inverter components according to claim 3, characterized in that, The movable adjusting member (306) includes an external threaded section (306a) disposed on the rotating shaft of the eccentric wheel, and an adjusting cylinder (306b) disposed on the rotating shaft and having an internal thread that matches the external threaded section. The wheel body of the eccentric wheel is rotatably connected to the adjusting cylinder.

5. A smart paint spraying and drying production line for new energy inverter components according to claim 4, characterized in that, The movable adjusting member (306) also includes an outer annular groove (306c) disposed on the adjusting cylinder (306b), and the wheel body of the eccentric wheel is rotatably connected in the outer annular groove.

6. The intelligent spray painting and drying production line for new energy inverter components according to claim 5, characterized in that, The movable adjustment component (306) also includes ball bearings (306d) disposed on the groove wall of the outer ring groove (306c) and rollingly connected to the wheel body surface of the eccentric wheel.

7. A smart paint spraying and drying production line for new energy inverter components according to any one of claims 4 to 6, characterized in that, The movable adjustment member (306) also includes a handle (306e) disposed on the adjustment cylinder (306b).

8. The intelligent spray painting and drying production line for new energy inverter components according to claim 1, characterized in that, The wheel set (303) has at least two sets along the conveying direction, and the gap between the two clamping wheels of the wheel set located at the front end of the conveying direction is greater than or equal to the gap between the two clamping wheels of the wheel set located at the rear end of the conveying direction.

9. A smart paint spraying and drying production line for new energy inverter components according to claim 1, characterized in that, The drying equipment (301) is provided with an air inlet assembly (307) and a return air assembly (308). The air inlet assembly has an air supply pipe with both ends connected to the air outlet of the drying equipment and the internal space of the shield, respectively. The return air assembly has a return air pipe with both ends connected to the air inlet of the drying equipment and the internal space of the shield, respectively.

10. A smart paint spraying and drying production line for new energy inverter components according to claim 1, characterized in that, The drying station (3) is also provided with a smoke exhaust assembly (309) located at the upper end of the shield (302), the smoke exhaust assembly including at least a smoke exhaust pipe located at the upper end of the shield and communicating with the internal space of the shield.

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