A carbon fiber composite material spraying processing device

Abstract

This invention discloses a carbon fiber composite material spraying processing device, relating to the field of carbon fiber composite material processing technology. It includes a base with a docking mechanism at the top and a spraying processing mechanism at the bottom. The spraying processing mechanism includes a processing box slidably mounted on the base, with a spraying chamber and a drying chamber inside. Both ends of the spraying chamber are equipped with a sealing adjustment mechanism, which adjusts according to the size of the material product to isolate the spraying chamber from the outside environment. The sealing adjustment mechanism includes L-shaped rods arranged in a uniform circle, each L-shaped rod consisting of a vertical axis and a horizontal axis, with the horizontal axis facing the inside of the spraying chamber. An extended sealing layer is telescopically connected between the horizontal axes of each L-shaped rod, and a fan-shaped folding layer is telescopically connected between the vertical axes of each L-shaped rod. This invention can adapt to changes in the size of the product, adjust the size of the path through which the product passes, and does not contact the product, providing excellent isolation and reducing maintenance and operation difficulty.

Description

Technical Field

[0001] This invention relates to the field of tubular carbon fiber composite material processing technology, and in particular to a carbon fiber composite material spraying processing device. Background Technology

[0002] Carbon fiber composites are composite materials using carbon fiber as reinforcement, typically combined with a resin matrix. Due to their unique properties, this material is widely used in aerospace, automotive, sporting goods, construction, and medical fields. Carbon fiber composite tubular products come in various shapes and can be molded into products with diverse structures to meet industrial needs. In the processing and production of carbon fiber composite tubular products, spray coating is a crucial step, transforming raw black blanks into high-quality, weather-resistant, and multifunctional end products. Depending on the application scenario, different spray coatings can act as environmental barriers, and spray coating brings multiple values ​​to carbon fiber composites, including protection, reinforcement, and intelligent surface treatment.

[0003] Existing spray coating processes generally employ an isolated processing method, where the product is placed in a spray chamber for coating. However, for tubular products requiring transport, this presents challenges due to inconvenient transport and poor isolation. Current isolation methods typically involve placing flexible bristles along the transport path, with the bristles contacting the product surface and adapting to changes in product size. However, after long-term use, the bristles become extremely difficult to maintain, exhibiting drawbacks such as shedding and hardening. Therefore, this invention proposes a spray coating device that can adapt to changes in product size, adjust the size of the product's passage path, and avoid contact with the product, providing excellent isolation, reducing maintenance difficulty, and effectively protecting the coated layer from contact damage. Summary of the Invention

[0004] To address the aforementioned technical problems, this invention can adapt to changes in the size of tubular material products, adjust the size of the product's passage path, and avoid contact with the product. It also has good isolation and anti-escape effects as well as coating protection effects, reducing the difficulty of maintenance and operation. At the same time, it discloses complete motion control and cooperative logic, enabling the technical solution to be implemented in a standardized manner.

[0005] The technical solution used in this invention is as follows: a carbon fiber composite material spraying processing device, including a base, a docking mechanism at the top of the base for clamping and transferring tubular material products; a spraying processing mechanism at the bottom of the base, the spraying processing mechanism including a processing box slidably mounted on the base, the processing box having a spraying chamber and a drying chamber inside, the tubular material products being sprayed in the spraying chamber and dried in the drying chamber; a sealing adjustment mechanism is provided at both ends of the spraying chamber, the sealing adjustment mechanism being adjusted according to the size of the tubular material product to isolate the spraying chamber from the outside; the sealing adjustment mechanism includes a circular, uniform... The L-bars are arranged in a series of columns, each consisting of a vertical axis and a horizontal axis. An extended sealing layer connects the horizontal axes of each L-bar, and a fan-shaped folded layer connects the vertical axes of each L-bar. The horizontal axes extend 5-15mm into the spray cavity by a predetermined distance. The inner diameter of the closed ring formed by the combined horizontal axes is larger than the outer diameter of the tubular material product, and a 1-3mm non-contact gap is reserved between the horizontal axes and the tubular material product. Each L-bar moves synchronously radially, and is always arranged in a uniform circular pattern, allowing the extended sealing layer and the fan-shaped folded layer to expand and contract evenly, forming a circular closed ring that matches the size of the tubular material product to prevent the spraying material from escaping.

[0006] The principle of non-contact gap to prevent escaping: The 1-3mm non-contact gap sets up a physical barrier for the escaping of micron-sized spraying material particles. During the spraying operation inside the spraying chamber, a slight positive pressure is formed, causing the spraying material particles to circulate within the chamber, making it difficult for them to escape to the outside through the tiny gap. At the same time, the preset distance of 5-15mm extending horizontally towards the inside of the spraying chamber forms an axial shielding barrier, further preventing the spraying material particles from diffusing outward along the gap, achieving the dual effect of "leaving a gap" and "preventing the escaping of spraying material".

[0007] As a preferred embodiment, the docking mechanism includes a motor fixedly mounted on the top of the base and a lead screw rotatably mounted on the top of the base. The lead screw is driven by the motor. A slide block is slidably mounted on the top of the base, forming a helical pair with the lead screw. A position electric cylinder is fixedly mounted on the slide block, with a telescopic rod stroke of 50-200mm. A drive motor is fixedly mounted on the telescopic rod of the position electric cylinder, and a drive disk is rotatably mounted, driven by the drive motor. A clamping electric cylinder is fixedly mounted on the drive disk in a ring-shaped, uniform arrangement, with a telescopic rod stroke of 30-150mm. A fixing rod is fixedly mounted on the telescopic rod of the clamping electric cylinder. The docking mechanism is suitable for tubular material products with an inner diameter of 50-500mm, an outer diameter of 60-550mm, and a length of 500-5000mm. The fixing rod is used to provide inner support and fixation for the tubular material products.

[0008] As a preferred embodiment, a clamping mechanism is provided at one end of the bottom of the base for clamping tubular material products. The clamping mechanism includes a second drive motor fixedly mounted on the base and a second drive disk rotatably mounted on the base. The second drive disk is driven by the second drive motor. A second clamping electric cylinder is fixedly mounted on the second drive disk in a ring-shaped and uniform arrangement. The extension rod of the second clamping electric cylinder has a stroke of 30-150mm. A second fixing rod is fixedly mounted on the extension rod of the second clamping electric cylinder. The clamping mechanism is suitable for tubular material products with an inner diameter of 50-500mm, an outer diameter of 60-550mm, and a length of 500-5000mm. The second fixing rod is used to provide inner support and fixation for the tubular material products.

[0009] As a preferred embodiment, the spraying processing mechanism includes a slide block two slidably mounted on a base, a processing box fixedly mounted on the slide block two, a motor two fixedly mounted on the base, and a lead screw two rotatably mounted thereon. The lead screw two is driven by the motor two, and the lead screw two and the slide block two form a helical pair. The slide block two adopts a uniform speed linkage movement mode with a movement speed of 5-20 mm / s, and starts and stops synchronously with the spraying operation of the spraying unit. Holes that allow tubular material products of different sizes to pass through are respectively opened at both ends of the processing box.

[0010] As a preferred embodiment, the processing box is equipped with a spraying transfer box and a drying control box on its outer side. The spraying transfer box is used to transfer the spraying material. The spraying pressure of the spraying section is 0.2-0.8MPa, the spraying flow rate is 50-200mL / min, and the spraying distance is 100-300mm. The parameters can be adjusted according to the outer diameter and material of the tubular material product. The drying control box is used to control the transmission of the drying airflow. The drying airflow temperature in the drying chamber is 40-80℃, the flow rate is 1-3m / s, and the drying time of the tubular material product in the drying chamber is 1-5min / m, which can be adjusted according to the thickness of the sprayed coating. A spraying electric cylinder is fixedly installed on the top of the processing box. A spraying section is installed on the telescopic rod of the spraying electric cylinder, and the spraying section is connected to the spraying transfer box. A transfer ring is also provided on the outer side of the processing box. An airflow section is connected to the transfer ring, which is located inside the drying chamber. The transfer ring is connected to the drying control box.

[0011] As a preferred embodiment, the closed adjustment mechanism includes a control motor fixedly mounted on the top of the processing box, an L-shaped rod radially slidably mounted on the end face of the spraying chamber, and a circularly evenly arranged adjusting screw rod rotatably mounted on the end face of the spraying chamber. A telescopic sleeve is fitted on the outside of the adjusting screw rod, the telescopic sleeve being made of elastic telescopic corrugated tubing, the telescopic stroke matching the radial movement distance of the L-shaped rod, used to protect the adjusting screw rod from contamination by the spraying material and to prevent the screw rod from jamming and affecting the movement of the L-shaped rod. A connecting gear is fixedly mounted at the end of the adjusting screw rod, and the adjusting screw rod and the vertical shaft form a helical pair. The rotation angle of the control motor is linearly related to the radial movement distance of the L-shaped rod. For every 10° rotation of the control motor, the L-shaped rod moves radially by 0.5-2mm. The closed adjustment mechanism adopts an automatic program control mode. By inputting the radius value of the tubular material product, the system automatically calculates and controls the rotation angle of the control motor to achieve precise positioning of the L-shaped rod.

[0012] As a preferred embodiment, a control gear ring is rotatably installed on the outer periphery of the end face of the spraying cavity. The control gear ring meshes with each connecting gear, and the control motor is used to drive any one of the connecting gears to rotate, so that each L rod is linked. The closing adjustment mechanism at both ends of the spraying cavity adopts a synchronous linkage control mode to synchronously complete the opening / contraction action, which is linked with the transmission action of the tubular material product. The product is pre-adjusted to the appropriate size before transmission, and the size is kept fixed during the transmission of the product to avoid product jamming and spraying material leakage.

[0013] As a preferred embodiment, the horizontal shaft on the L-bar has a hollow structure, with rotating shafts rotatably mounted on both sides inside the horizontal shaft. The end of the extended sealing layer is wound around the rotating shaft, and adjacent horizontal shafts are connected by the extended sealing layer to form a closed ring. A coil spring is connected between the rotating shaft and the inner end of the horizontal shaft to provide torque. The extended sealing layer is made of silicone material resistant to the corrosion of sprayed materials, with a thickness of 0.5-2mm and a telescoping limit of 0.5-3 times the initial length, providing good telescoping and sealing properties. The fan-shaped folded layer is made of polytetrafluoroethylene folded film material, with a thickness of 0.3-1.5mm, and adopts a radial folding structure. Its telescoping limit is 0.3-4 times the initial diameter, and it expands and contracts synchronously with the radial movement of the vertical shaft to ensure the closed shape between the vertical shafts.

[0014] The advantages of this invention compared to the prior art are:

[0015] (1) The tubular material product extends from the end face of the processing box into the inner side of the processing box. It first passes through the spraying chamber. In the spraying chamber, according to the radial dimension of the product, the radial position of the L rod is adjusted by the automatic control mode of the program. The product radius value can be input to achieve precise positioning. The adjustment is convenient and efficient, and it is suitable for tubular material products with an outer diameter of 60-550mm.

[0016] (2) A silicone-based extended sealing layer is connected between the horizontal axes of each L rod, and a polytetrafluoroethylene-based fan-shaped folded layer is connected between the vertical axes. The extended sealing layer and the fan-shaped folded layer can adaptably expand and contract according to the radial movement of the L rod. The coil spring provides torque for the expansion and contraction of the extended sealing layer, ensuring the closed shape at both ends of the spraying cavity. Both layers are resistant to corrosion from the spraying material, have a long service life, and are easy to maintain.

[0017] (3) The horizontal axis extends 5-15mm into the inner side of the spraying chamber. A non-contact gap of 1-3mm is reserved between the closed ring formed by the horizontal axes and the tubular material product. Through the composite anti-escape principle of axial shielding + micro-gap physical barrier + positive pressure of the spraying chamber, the escape of the spraying material is effectively prevented. At the same time, the non-contact design avoids contact with the surface of the tubular material product. During the product transfer process, it can effectively protect the coating after spraying from being scratched or damaged, and improve the quality of the sprayed product.

[0018] (4) The slide block adopts a uniform speed linkage movement mode of 5-20mm / s, which starts and stops synchronously with the spraying operation of the spraying section. With the clear spraying process parameters (0.2-0.8MPa spraying pressure, 50-200mL / min spraying flow rate, etc.), the sprayed coating is uniform and the thickness meets the standard. The drying chamber is set with airflow temperature of 40-80℃ and flow rate of 1-3m / s. The drying time is adapted according to the coating thickness to ensure that the coating is fully dried and has strong adhesion.

[0019] (5) The closed adjustment mechanism at both ends of the spraying chamber adopts a synchronous linkage control mode, which is precisely linked with the transmission action of the tubular material product. The movement trajectory of the processing box and the tubular material product is designed to prevent interference, avoiding collision and jamming of components. The motion control and coordination logic of the whole device is complete, and standardized and automated spraying processing operations can be realized.

[0020] (6) The docking mechanism and clamping mechanism have clearly defined the range of fit (inner diameter 50-500mm, length 500-5000mm) and component parameters (clamping electric cylinder stroke 30-150mm, etc.), which can accurately clamp tubular material products of different specifications. They have strong adaptability and wide applicability. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0022] Figure 2 This is a schematic diagram of the docking mechanism of the present invention.

[0023] Figure 3 This is a schematic diagram of the clamping mechanism of the present invention.

[0024] Figure 4 This is a schematic diagram of the installation structure of the processing box of the present invention.

[0025] Figure 5 This is a schematic diagram of the installation structure of the processing box of the present invention from another angle.

[0026] Figure 6 This is a schematic diagram of the installation structure of the controlled drying chamber inside the processing box of the present invention.

[0027] Figure 7 This is a cross-sectional schematic diagram of the internal structure of the processing box of the present invention.

[0028] Figure 8 This is a cross-sectional view of the closed adjustment mechanism structure of the present invention.

[0029] Figure 9 This is a cross-sectional view of the L-bar connection structure of the present invention.

[0030] Figure 10 This is a cross-sectional view of the extended closed-layer connection structure of the present invention.

[0031] Figure 11 For the present invention Figure 10 Sectional view at point A in the middle.

[0032] Reference numerals: 1-Base; 2-Motor 1; 3-Lead screw 1; 4-Motor 2; 5-Lead screw 2; 6-Slide 2; 7-Processing box; 8-Slide 1; 801-Positioning electric cylinder; 9-Drive motor 1; 10-Drive disk 1; 11-Clamping electric cylinder 1; 12-Fixing rod 1; 13-Drive motor 2; 14-Drive disk 2; 15-Clamping electric cylinder 2; 16-Fixing rod 2; 17-Spraying transfer box; 18-Drying control box; 19-Transfer ring; 20-Spraying electric cylinder; 21-Control motor; 22-Airflow section; 23-Spraying section; 24-Adjusting lead screw; 25-Control gear ring; 26-Connecting gear; 27-Telescopic sleeve; 28-Vertical shaft; 2801-Fan-shaped folding layer; 29-Horizontal shaft; 30-Extended sealing layer; 31-Rotating shaft; 32-Coil spring. Detailed Implementation

[0033] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0034] like Figures 1 to 11As shown, a carbon fiber composite material spraying processing device includes a base 1, with a docking mechanism at the top of the base 1 for clamping and transferring tubular material products; a spraying processing mechanism is located at the bottom of the base 1, including a processing box 7 slidably mounted on the base 1, the processing box 7 having a spraying chamber and a drying chamber inside, the tubular material products being sprayed in the spraying chamber and dried in the drying chamber; a sealing adjustment mechanism is provided at both ends of the spraying chamber, the sealing adjustment mechanism being adjusted according to the size of the tubular material products to isolate the spraying chamber from the outside; the sealing adjustment mechanism includes L-shaped rods evenly arranged in a circle, the L-shaped rods being connected by a vertical axis 28 It consists of a horizontal axis 29; an extended sealing layer 30 is telescopically connected between the horizontal axes 29 of each L-bar, and a fan-shaped folded layer 2801 is telescopically connected between the vertical axes 28 of each L-bar; the horizontal axis 29 extends 5-15mm towards the inner side of the spraying cavity by a preset distance, and the inner diameter of the closed ring formed by the horizontal axes 29 is larger than the outer diameter of the tubular material product, and a non-contact gap of 1-3mm is reserved between it and the tubular material product; each L-bar moves synchronously in the radial direction, and each L-bar is always arranged in a uniform circular pattern, so that the extended sealing layer 30 and the fan-shaped folded layer 2801 are uniformly extended and contracted to form a circular closed ring that matches the size of the tubular material product, so as to prevent the spraying material from escaping.

[0035] The docking mechanism includes a motor 2 fixedly mounted on the top of base 1, and a lead screw 3 rotatably mounted on the top of base 1. Lead screw 3 is driven by motor 2. A slide block 8 is slidably mounted on the top of base 1, forming a helical pair with lead screw 3. A position cylinder 801 is fixedly mounted on slide block 8, with a telescopic stroke of 50-200mm. A drive motor 9 is fixedly mounted on the telescopic stroke of position cylinder 801. A drive disk 10 is rotatably mounted, driven by drive motor 9. Clamping cylinders 11 arranged in a ring are fixedly mounted on drive disk 10, with a telescopic stroke of 30-150mm. A fixing rod 12 is fixedly mounted on the telescopic stroke of clamping cylinders 11. The docking mechanism is suitable for inner diameters of 50-500mm and outer diameters of 60-550mm. A tubular material product with a length of 500-5000mm is provided. A fixing rod 12 is used to support and fix the tubular material product from the inside. A clamping mechanism is provided at one end of the bottom of the base 1 for clamping the tubular material product. The clamping mechanism includes a drive motor 13 fixedly mounted on the base 1 and a drive disk 14 rotatably mounted on the base 1. The drive disk 14 is driven by the drive motor 13. A clamping electric cylinder 15 is fixedly mounted on the drive disk 14 in a ring and evenly arranged. The extension rod of the clamping electric cylinder 15 has a stroke of 30-150mm. A fixing rod 16 is fixedly mounted on the extension rod of the clamping electric cylinder 15. The clamping mechanism is suitable for tubular material products with an inner diameter of 50-500mm, an outer diameter of 60-550mm, and a length of 500-5000mm. The fixing rod 16 is used to support and fix the tubular material product from the inside.

[0036] The spraying mechanism includes a slide block 6 slidably mounted on a base 1, a processing box 7 fixedly mounted on the slide block 6, a motor 4 fixedly mounted on the base 1, and a lead screw 5 rotatably mounted on the base 1. The lead screw 5 is driven by the motor 4, and the lead screw 5 and the slide block 6 form a helical pair. The slide block 6 adopts a uniform speed linkage movement mode with a movement speed of 5-20 mm / s, and starts and stops synchronously with the spraying operation of the spraying unit 23. Holes allowing tubular materials of different sizes to pass through are respectively opened at both ends of the processing box 7. A spraying transfer box 17 and a drying control box 18 are arranged on the outside of the processing box 7. The spraying transfer box 17 is used to transfer the spraying material, and the spraying pressure of the spraying unit 23 is 0.2. -0.8MPa, spraying flow rate of 50-200mL / min, spraying distance of 100-300mm; drying control box 18 is used to control the transmission of drying airflow, the drying airflow temperature in the drying chamber is 40-80℃, the flow rate is 1-3m / s, and the drying time of tubular material products in the drying chamber is 1-5min / m; a spraying electric cylinder 20 is fixedly installed on the top of the processing box 7, and a spraying part 23 is installed on the telescopic rod of the spraying electric cylinder 20, which is connected to the spraying transmission box 17; a transmission ring 19 is also installed on the outside of the processing box 7, and an airflow part 22 is connected to the transmission ring 19, which is located inside the drying chamber, and the transmission ring 19 is connected to the drying control box 18.

[0037] The closed adjustment mechanism includes a control motor 21 fixedly mounted on the top of the processing box 7. An L-rod is radially slidably mounted on the end face of the spraying chamber. A circularly arranged adjusting screw 24 is rotatably mounted on the end face of the spraying chamber. A telescopic sleeve 27, made of elastic telescopic corrugated tubing, is fitted around the adjusting screw 24, its extension stroke matching the radial movement distance of the L-rod, protecting the adjusting screw 24 from contamination by the spraying material. A connecting gear 26 is fixedly mounted at the end of the adjusting screw 24. The adjusting screw 24 and the vertical shaft 28 form a helical pair. The rotation angle of the control motor 21 is linearly related to the radial movement distance of the L-rod. For every 10° rotation, the L rod moves radially by 0.5-2mm; a control gear ring 25 is rotatably installed on the outer periphery of the end face of the spraying chamber. The control gear ring 25 has an annular internal tooth structure and is coaxially rotatably installed on the outer periphery of the end face of the spraying chamber; each adjusting screw 24 is evenly arranged in a circle on the inner side of the control gear ring 25, and each adjusting screw 24 has a connecting gear 26 fixed at its end. Each connecting gear 26 continuously meshes with the inner tooth surface of the control gear ring 25, forming a circumferential meshing transmission structure of "single gear ring linkage multiple gears"; the closed adjustment mechanism at both ends of the spraying chamber adopts a synchronous linkage control mode, which is linked with the transmission action of the tubular material product.

[0038] The control motor 21 is used to drive any one of the connecting gears 26 to rotate, that is, the output end of the control motor 21 is directly connected to the connecting gear 26 at the end of any adjusting screw 24; the closed adjustment mechanism adopts a program automatic control mode. By inputting the radius value of the tubular material product, the system automatically calculates the target rotation angle of the control motor 21. When the control motor 21 starts, it first drives the connecting gear 26 connected to it to rotate. The connecting gear 26 meshes with the inner tooth surface of the control gear ring 25, thereby driving the ring-shaped control gear ring 25 to rotate around its own central axis. The circumferential rotation of the control ring 25, due to the meshing of the connecting gears 26 of all adjusting screws 24 with the inner tooth surface of the control ring 25, will simultaneously drive all connecting gears 26 to rotate synchronously at the same speed and in the same direction. Since the connecting gears 26 and the adjusting screws 24 are fixedly connected, the synchronous, same speed and same direction rotation of all adjusting screws 24 is finally achieved. Each adjusting screw 24 forms a helical pair with the vertical axis 28 of the L rod. The synchronous rotation of the adjusting screws 24 will drive all L rods to move synchronously inward / outward along the radial direction, achieving precise positioning of the L rods.

[0039] The horizontal shaft 29 on the L-bar has a hollow structure. Rotating shafts 31 are rotatably mounted on both sides of the interior of the horizontal shaft 29. The ends of the extended sealing layer 30 are wound around the rotating shafts 31. Adjacent horizontal shafts 29 are connected by the extended sealing layer 30, forming a closed ring. A coil spring 32 connects the rotating shaft 31 to the inner end of the horizontal shaft 29 to provide torque. The extended sealing layer 30 is made of silicone material resistant to the corrosion of sprayed materials, with a thickness of 0.5-2mm and a telescoping limit of 0.5-3 times its initial length. The fan-shaped folded layer 2801 is made of polytetrafluoroethylene folded film, with a thickness of 0.3-1.5mm, and adopts a radial folding structure. Its telescoping limit is 0.3-4 times its initial diameter, and it expands and contracts synchronously with the radial movement of the vertical shaft 28. Specifically, adjacent horizontal shafts 29... There are gaps between them, and the gaps are closed by the extended sealing layer 30 in the form of a coil. Thus, each horizontal axis 29 and the extended sealing layer 30 together form a circular closed ring on the outside of the tubular material product. As the L rod moves radially, the gap between each horizontal axis 29 changes accordingly, and the extended sealing layer 30 extends or contracts accordingly. The two ends of the extended sealing layer 30 are coiled and connected to the rotating shaft 31 on the inner side of the adjacent horizontal axis 29. Torque is provided by the coil spring 32. When the extended sealing layer 30 contracts, the rotating shaft 31 rotates under the torque of the coil spring 32 to roll up the extended sealing layer 30. The fan-shaped folded layer 2801 expands and contracts with the movement of the vertical axis 28. It is connected between each vertical axis 28 in a fan-shaped structure to always ensure the closed shape between the vertical axes.

[0040] Operating principle:

[0041] Product clamping: According to the specifications of the tubular material product to be processed (inner diameter 50-500mm, outer diameter 60-550mm, length 500-5000mm), the tubular material product is installed on the fixing rod 2 16. The fixing rod 2 16 is extended and retracted by the clamping electric cylinder 2 15, so that the fixing rod 2 16 extends to the inside of the tubular material product for support and fixation. The drive motor 2 13 drives the drive disk 2 14 to rotate, so as to control the tubular material product to rotate at a uniform speed.

[0042] Pre-adjustment of the sealing mechanism: The radius value of the tubular material product is input into the sealing adjustment mechanism through the program. The system automatically calculates the target rotation angle of the control motor 21, controls the motor 21 to drive the control gear ring 25 to rotate, and drives all L rods to move synchronously in the radial direction to the appropriate position, so that a non-contact gap of 1-3mm is reserved between the closed ring enclosed by the horizontal axis 29 and the product. The sealing adjustment mechanisms at both ends of the spraying cavity complete the pre-adjustment synchronously to keep the size fixed.

[0043] Processing box movement and product entry: Motor 24 drives lead screw 25 to rotate, which in turn drives slide 26 and processing box 7 to move towards the tubular material product at a uniform speed of 5-20mm / s. The tubular material product extends from the end face of processing box 7 into the inner side of processing box 7 and first passes through the spraying cavity. The movement trajectory of processing box 7 and tubular material product adopts an anti-interference design. The movement limit position of processing box 7 is linked with the action timing of docking mechanism to avoid component collision.

[0044] Spraying operation: The spraying operation starts and stops synchronously with the movement of slide 26. Spraying transfer box 17 transfers spraying material to spraying section 23. Spraying section 23 sprays the rotating tubular material product with a spraying pressure of 0.2-0.8MPa, a spraying flow rate of 50-200mL / min, and a spraying distance of 100-300mm. A slight positive pressure is formed inside the spraying chamber. Combined with the axial shielding of horizontal axis 29 (5-15mm preset distance) and a non-contact gap of 1-3mm, the spraying material is prevented from escaping. The non-contact design avoids scratching the coating.

[0045] Drying operation: The tubular material product enters the drying chamber as the processing box 7 moves. The drying control box 18 delivers drying airflow to the transfer ring 19. The airflow is released through the airflow section 22 at a temperature of 40-80℃ and a flow rate of 1-3m / s to dry the sprayed product. The drying time is adapted to the coating thickness at 1-5min / m to ensure that the coating is fully dried and has strong adhesion.

[0046] Full-area processing: When the processing box 7 moves to the end limit position of the base 1, the motor 2 drives the lead screw 3 to rotate, so that the slide 8 moves to the appropriate position. The position electric cylinder 801 adjusts the height of the fixing rod 12 so that the rotation center of the drive disk 10 is coaxial with the center of the tubular material product. The fixing rod 12 extends to the inside of the tubular material product. The clamping electric cylinder 11 controls the fixing rod 12 to support and fix it. Then the clamping mechanism releases the fixation of the tubular material product. The docking mechanism drives the tubular material product to move axially, so that the unprocessed area on the product enters the spraying chamber and drying chamber. The above spraying and drying steps are repeated to complete the full-area processing.

[0047] It should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A carbon fiber composite material spraying processing device, comprising a base (1), characterized in that: The base (1) is equipped with a docking mechanism at the top for clamping and transferring tubular material products; the base (1) is equipped with a spraying mechanism at the bottom, which includes a processing box (7) slidably mounted on the base (1). The processing box (7) is equipped with a spraying chamber and a drying chamber. The tubular material products are sprayed in the spraying chamber and dried in the drying chamber. The spraying chamber is equipped with a sealing adjustment mechanism at both ends. The sealing adjustment mechanism can be adjusted according to the size of the tubular material products to isolate the spraying chamber from the outside world. The sealing adjustment mechanism includes L rods arranged in a circular and uniform manner. The L rods are composed of a vertical axis (28) and a horizontal axis (29). The horizontal axis of each L rod is... The shafts (29) are connected by an extended sealing layer (30), and the vertical shafts (28) of each L rod are connected by a fan-shaped folded layer (2801). The horizontal shafts (29) extend 5-15mm towards the inside of the spraying cavity. The inner diameter of the closed ring formed by the horizontal shafts (29) is larger than the outer diameter of the tubular material product, and a non-contact gap of 1-3mm is reserved between them and the tubular material product. Each L rod moves synchronously in the radial direction, and each L rod is always arranged in a circular and uniform manner, so that the extended sealing layer (30) and the fan-shaped folded layer (2801) are uniformly extended and contracted to form a circular closed ring that matches the size of the tubular material product, so as to prevent the spraying material from escaping.

2. The carbon fiber composite material spraying processing device according to claim 1, characterized in that: The docking mechanism includes a motor (2) fixedly mounted on the top of the base (1) and a lead screw (3) rotatably mounted on the top of the base (1). The lead screw (3) is driven by the motor (2). A slide block (8) is slidably mounted on the top of the base (1). The slide block (8) and the lead screw (3) form a helical pair. A position cylinder (801) is fixedly mounted on the slide block (8). The telescopic rod of the position cylinder (801) has a stroke of 50-200mm. A drive motor (9) is fixedly mounted on the telescopic rod of the position cylinder (801), and a drive motor (9) is rotatably mounted on the telescopic rod of the position cylinder (801). The moving disk (10) is driven by the drive motor (9). The drive disk (10) is fixedly installed with a clamping electric cylinder (11) arranged in a ring. The extension rod of the clamping electric cylinder (11) has a stroke of 30-150mm. A fixing rod (12) is fixedly installed on the extension rod of the clamping electric cylinder (11). The docking mechanism is suitable for tubular material products with an inner diameter of 50-500mm, an outer diameter of 60-550mm, and a length of 500-5000mm. The fixing rod (12) is used to support and fix the tubular material products on the inside.

3. The carbon fiber composite material spraying processing device according to claim 1, characterized in that: The base (1) has a clamping mechanism at one end of its bottom for clamping tubular material products. The clamping mechanism includes a second drive motor (13) fixedly mounted on the base (1) and a second drive disk (14) rotatably mounted on the base (1). The second drive disk (14) is driven by the second drive motor (13). A second clamping electric cylinder (15) is fixedly mounted on the second drive disk (14) in a ring-shaped uniform arrangement. The extension rod of the second clamping electric cylinder (15) has a stroke of 30-150mm. A second fixing rod (16) is fixedly mounted on the extension rod of the second clamping electric cylinder (15). The clamping mechanism is suitable for tubular material products with an inner diameter of 50-500mm, an outer diameter of 60-550mm, and a length of 500-5000mm. The second fixing rod (16) is used to provide inner support and fixation for the tubular material products.

4. The carbon fiber composite material spraying processing device according to claim 1, characterized in that: The spraying processing mechanism includes a slide block two (6) slidably mounted on the base (1), a processing box (7) fixedly mounted on the slide block two (6), a motor two (4) fixedly mounted on the base (1), and a lead screw two (5) rotatably mounted. The lead screw two (5) is driven by the motor two (4). The lead screw two (5) and the slide block two (6) form a helical pair. The slide block two (6) adopts a uniform speed linkage movement mode with a movement speed of 5-20mm / s, and starts and stops synchronously with the spraying operation of the spraying unit (23). Holes that allow tubular material products of different sizes to pass through are respectively opened at both ends of the processing box (7).

5. The carbon fiber composite material spraying processing device according to claim 4, characterized in that: The processing box (7) is equipped with a spraying transfer box (17) and a drying control box (18) on the outside. The spraying transfer box (17) is used to transfer the spraying material. The spraying pressure of the spraying section (23) is 0.2-0.8MPa, the spraying flow rate is 50-200mL / min, and the spraying distance is 100-300mm. The drying control box (18) is used to control the transmission of the drying airflow. The drying airflow temperature in the drying chamber is 40-80℃, and the flow rate is 1-3m / s. The tubular material The drying time of the product in the drying chamber is 1-5 min / m; a spraying electric cylinder (20) is fixedly installed on the top of the processing box (7), and a spraying part (23) is installed on the telescopic rod of the spraying electric cylinder (20), which is connected to the spraying transfer box (17); a transfer ring (19) is also installed on the outside of the processing box (7), and an airflow part (22) is connected to the transfer ring (19), which is located inside the drying chamber, and the transfer ring (19) is connected to the drying control box (18).

6. The carbon fiber composite material spraying processing device according to claim 1, characterized in that: The closed adjustment mechanism includes a control motor (21) fixedly installed on the top of the processing box (7), an L-rod radially slidingly installed on the end face of the spraying chamber, and an adjusting screw (24) evenly arranged in a circle rotatably installed on the end face of the spraying chamber. A telescopic sleeve (27) is sleeved on the outside of the adjusting screw (24). The telescopic sleeve (27) is made of elastic telescopic corrugated pipe material, and the telescopic stroke matches the radial movement distance of the L-rod. It is used to protect the adjusting screw (24) from contamination by the spraying material. A connecting gear (26) is fixedly installed at the end of the adjusting screw (24). The adjusting screw (24) and the vertical shaft (28) form a helical pair. The rotation angle of the control motor (21) is linearly related to the radial movement distance of the L-rod. For every 10° rotation of the control motor (21), the L-rod moves radially by 0.5-2mm.

7. The carbon fiber composite material spraying processing device according to claim 6, characterized in that: A control gear ring (25) is rotatably installed on the outer periphery of the end face of the spraying cavity. The control gear ring (25) meshes with each connecting gear (26). The control motor (21) is used to drive any one of the connecting gears (26) to rotate so that each L rod is linked. The closing adjustment mechanism at both ends of the spraying cavity adopts a synchronous linkage control mode to synchronously complete the opening / contraction action, which is linked with the transmission action of the tubular material product. The product is pre-adjusted to the appropriate size before transmission and the size is kept fixed during the transmission of the product.

8. The carbon fiber composite material spraying processing device according to claim 7, characterized in that: The horizontal shaft (29) on the L-bar is a hollow structure. Rotary shafts (31) are rotatably installed on both sides inside the horizontal shaft (29). The end of the extended sealing layer (30) is wound around the rotating shaft (31). Each adjacent horizontal shaft (29) is connected by the extended sealing layer (30) to form a closed ring. A coil spring (32) is connected between the rotating shaft (31) and the inner end of the horizontal shaft (29) to provide torque. The extended sealing layer (30) is made of silicone material that is resistant to the corrosion of spraying raw materials. The thickness is 0.5-2mm, and the expansion limit is 0.5-3 times the initial length. The fan-shaped folded layer (2801) is made of polytetrafluoroethylene folded film material. The thickness is 0.3-1.5mm. It adopts a radial folding structure. The expansion limit is 0.3-4 times the initial diameter. It expands and contracts synchronously with the radial movement of the vertical shaft (28).

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