A composite article forming system

Abstract

The application discloses a composite material part forming system and relates to the technical field of composite materials, aiming to solve the technical problems of low dust cleaning efficiency, incomplete cleaning, no separation of fiber waste silk and resin debris and easy winding of fiber waste silk on the filter screen or blocking of the dust suction pipeline during the forming process of the composite material part. The application comprises a glue injection machine and a cutting device; the glue injection machine is used for injection molding of the composite material part, and the cutting device is used for cutting molding of the composite material part. The application improves the dust cleaning efficiency during the forming process of the composite material part, separates the fiber and resin debris, and prevents winding of the filter screen and blocking of the dust suction pipeline.

Description

Technical Field

[0001] This invention relates to the field of composite material technology, and in particular to a composite material molding system. Background Technology

[0002] Currently, the production of composite material products is rapidly increasing year by year and is widely used in high-end manufacturing fields such as aerospace, rail transportation, and new energy equipment. During the molding process of composite materials, waste is mainly generated in the injection molding and machining stages. In the injection molding stage, mold gaps, runner residues, and overflow generate resin debris and a mixture of incompletely impregnated short fibers, which do not produce small dust particles that could affect human health. However, in the machining stage, the separation of the fiber-resin interface and the material removal process generate a large amount of mixed waste. This type of waste is mainly composed of "resin debris + fiber waste," and has a small particle size. Currently, airflow purging and simple dust collection devices are commonly used to deal with this type of dust, but these methods suffer from low cleaning efficiency, incomplete cleaning, and the fact that existing cleaning methods do not separate fiber waste from resin debris, making the mixed waste difficult to recycle and reuse. Furthermore, fiber waste easily entangles in the filter screen or clogs the dust collection pipe, leading to frequent equipment failures. Summary of the Invention

[0003] Based on the above analysis, the present invention aims to provide a composite material part molding system to solve the problems of low dust cleaning efficiency and incomplete cleaning during the composite material part molding process, failure to separate fiber waste from resin debris, and easy entanglement of fiber waste in the filter screen or blockage of the dust collection pipe.

[0004] The objective of this invention is mainly achieved through the following technical solutions:

[0005] A molding system for composite material parts includes a glue injection machine and a cutting device;

[0006] The injection molding machine is used for injection molding of composite material parts, and the cutting equipment is used for cutting and molding of the composite material parts.

[0007] Furthermore, the dispensing machine includes a dispensing machine body and a resin container;

[0008] The mold is set in the body of the glue injection machine, and the mold contains fiber preforms;

[0009] The resin container is connected to the mold via a pipe, and the resin container is used to inject the resin into the mold to injection mold the fiber preform.

[0010] Furthermore, the cutting equipment includes a cutting tool and a worktable.

[0011] Furthermore, the cutting equipment also includes a tool air-cooling mechanism, which is disposed inside the cutting tool; the tool air-cooling mechanism is used to cool the tool and blow away the dust accumulated on the workpiece on the worktable.

[0012] Furthermore, it also includes a cleaning device for collecting and cleaning dust during the cutting process between the composite materials.

[0013] Furthermore, the cleaning equipment includes a dust collection unit, which includes a dust collection hood, a dust collection pipe, and a negative pressure fan.

[0014] The cutting equipment also includes a machining spindle, and the dust collection hood is arranged around the machining spindle. The negative pressure fan is connected to the dust collection hood through the dust collection pipe, and is used to draw dust into the dust collection pipe using negative pressure.

[0015] Furthermore, the blade air-cooling mechanism is provided with four air outlets, through which the blade air-cooling mechanism blows dust to the dust collection hood and the dust collection pipe.

[0016] Furthermore, the cleaning device also includes a resin block stripping unit.

[0017] Furthermore, it also includes a transfer device for transporting the injection-molded composite material part to the cutting device.

[0018] Furthermore, the cleaning device also includes a fiber clump filtration unit, which further includes a sieving component and a driving component; the dust sucked in by the dust suction unit enters the dust filtration pipe, and the sieving component filters and separates fiber clumps and large particles under the drive of the driving component.

[0019] Furthermore, the filtration assembly includes a housing and a screen; the housing is inserted into the dust filtration pipe; the inner wall of the housing is provided with a first sliding groove, and the two sides of the screen are provided with first protrusions, the first protrusions being able to slide in the first sliding groove, so that the screen can slide in the housing.

[0020] Furthermore, the filtration assembly also includes a cleaning brush, which is disposed at the top and bottom of both ends of the housing. The brush body of the cleaning brush is in contact with the surface of the screen to remove fiber clumps and dust adhering to its surface.

[0021] Furthermore, the filtration assembly also includes a brush scraper for cleaning fiber residue on the cleaning brush; the brush scraper is slidably disposed on the cleaning brush, and the brush scraper is a retractable scraper with its working surface disposed on one side of the brush body and in contact with the brush body.

[0022] Furthermore, the brush body scraper has a U-shaped structure; the two wings of the U-shaped structure are slidably disposed on the two side plates of the brush body, and the middle part of the U-shaped structure is disposed on one side of the brush body of the cleaning brush; the two sides of the brush body scraper are connected to pull rods, the pull rods are provided with second protrusions, and the two sides of the brush body scraper are provided with second sliding grooves; the reciprocating motion of the pull rods causes the brush body scraper to move periodically along the length direction of the cleaning brush.

[0023] Furthermore, a fiber collection box is provided at the lower part of the housing corresponding to the position of the cleaning brush, for collecting the fibers and dust dropped by the cleaning brush and the fibers and dust scraped off by the brush body scraper; the fiber collection box uses a conical structure, and the cross-sectional area of ​​the upper part of the conical structure is smaller than the cross-sectional area of ​​the lower part.

[0024] Furthermore, the drive assembly is used to drive the screening assembly to reciprocate in the dust filtration duct, and includes a rotating wheel and a guide rod.

[0025] Furthermore, the guide rod is fixed to the lower part of the rotating wheel, and the guide rod is connected to the end of the screen through the guide hole on the end face of the housing. The length direction of the guide rod is the same as the movement direction of the screen.

[0026] Furthermore, it also includes a swing arm, one end of which is connected to the rotating wheel and the other end of which is connected to the guide rod; the swing arm includes a rod portion and a meshing portion, and a hinge shaft is provided at the connection between the rod portion and the meshing portion; the rod portion is provided with an elongated through groove, and a pin is provided on the edge of the rotating wheel, the pin being able to reciprocate within the elongated through groove.

[0027] Furthermore, the guide rod is provided with a first toothed structure along its length, and the meshing part is provided with a second toothed structure that matches the first toothed structure.

[0028] Furthermore, the resin block stripping unit includes a scraper and a rotating brush; the scraper is used to scrape off resin debris from the surface of the workpiece, and the rotating brush is used to remove resin debris from the surface of the scraper.

[0029] Furthermore, the contact surface between the scraper and the workpiece is provided with multiple grooves; the grooves include transverse grooves and longitudinal grooves; the contact surface is also provided with a waste discharge outlet, which is a through hole located at the intersection of the transverse grooves and the longitudinal grooves.

[0030] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0031] (1) The composite material molding system of the present invention includes a composite material part injection molding equipment and a cutting equipment. The injection molding equipment includes a glue injection machine, which is used to inject resin into a mold containing fiber preforms, pressurize and heat it and cure it; the cutting equipment is used to cut and finish the cured composite material part blank to produce composite material parts.

[0032] (2) In this invention, the cooling airflow and the negative pressure field of the dust collection hood create a synergistic flow effect, enhancing the collection efficiency of suspended dust. The device has a compact overall structure, is compatible with various sizes of cutting spindles, and the inner wall of the dust collection hood is coated with an anti-stick coating to reduce resin particle adhesion and clogging. The direction of dust blowing can be adjusted by regulating the wind speed and angle of the negative pressure fan. A venturi tube is installed in the dust filter pipe, which is used to accelerate dust collection.

[0033] (3) The resin block peeling unit includes a scraper. The scraper is made of silicone material, which can fit well with the surface of the workpiece, avoiding the problem of rigid scrapers easily damaging the workpiece, and ensuring the peeling force on highly viscous waste residue.

[0034] (4) The screen slides within the housing to prevent fiber clumps from accumulating and clogging. Cleaning brushes are located at the top and bottom of both ends of the housing. The cleaning brushes contact the screen surface, and as the screen reciprocates in the first groove, the cleaning brushes simultaneously remove the fiber debris adhering to its surface, ensuring stable filtration efficiency.

[0035] (5) The cleaning brush component has a U-shaped structure and moves on the cleaning brush. The reciprocating motion of the lever causes the cleaning brush component to move periodically along the length of the cleaning brush, effectively scraping away the fiber residue wrapped around the surface of the cleaning brush. This cleaning process is coordinated with the movement of the screen to avoid secondary clogging.

[0036] (6) The driving component in this invention includes a rotating wheel, a swing arm, and a guide rod. The rotating wheel rotates, causing a pin located on its edge to rotate. The pin moves within the long slot of the swing arm's rod, causing the rod to swing, which in turn rotates the meshing part, driving the guide rod to reciprocate through the dust filter pipe within the housing, thus achieving automatic screen cleaning. Simultaneously, the reciprocating motion of the guide rod drives the brush scraping component to move synchronously, further enhancing the system's self-cleaning capability and ensuring stable operation over a long period.

[0037] (7) The contact surface between the scraper and the workpiece is provided with transverse grooves, longitudinal grooves, and a waste chip outlet. The waste chip outlet is a through hole located at the intersection of the transverse and longitudinal grooves. When the scraper removes resin chips and lumps from the workpiece surface, the grooves increase the scraping friction and change the flow direction of the resin chips, allowing the chips to quickly pass through the plate and prevent accumulation. The grid structure formed by the interlacing of the transverse and longitudinal grooves, combined with the guiding effect of the waste chip outlet, allows the chips to fall off quickly and be sucked in by the negative pressure fan.

[0038] In this invention, the above-described technical solutions can be combined with each other to achieve more preferred combinations. Other features and advantages of this invention will be set forth in the following description, and some advantages may become apparent from the description or be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained through the embodiments described and the accompanying drawings, which are particularly pointed out. Attached Figure Description

[0039] The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Throughout the drawings, the same reference numerals denote the same parts.

[0040] Figure 1 This is a schematic diagram of the composite material part molding system of Example 1;

[0041] Figure 2 This is a schematic diagram of the dispensing machine in Example 1;

[0042] Figure 3 This is a schematic diagram of the cutting tool and dust collection unit in Example 1;

[0043] Figure 4 This is a schematic diagram of the fiber clump removal unit in Example 2;

[0044] Figure 5 This is a schematic diagram of the filtration assembly in Example 2;

[0045] Figure 6 This is a schematic diagram of the structure of the cleaning brush and cleaning brush component in Example 2;

[0046] Figure 7 This is a schematic diagram of the drive component in Example 2;

[0047] Figure 8 This is a schematic diagram of the scraper structure of the resin block peeling unit in Example 3;

[0048] Figure 9 This is a schematic diagram of the rotating brush in Example 3.

[0049] Figure label:

[0050] 1-Glue dispensing machine; 11-Glue dispensing machine body; 12-Resin container; 2-Mold; 3-Transfer equipment; 4-Cutting equipment; 41-Cutting tool; 42-Machining spindle; 43-Worktable; 44-Tool air cooling mechanism; 441-Air outlet; 5-Cleaning equipment; 51-Dust collection unit; 511-Dust collection hood; 512-Dust collection duct; 513-Dust collection seat; 52-Fiber clump filtration unit; 521-Dust filtration duct; 522-Drive assembly; 5221-Fixed base; 5222-Guide ring; 5223-Rotor 5224-Swing arm; 5225-Guide rod; 523-Filter assembly; 5231-Housing; 5232-Screw; 5233-Cleaning brush; 5234-Brush scraper; 5235-Pull rod; 5236-Fiber collection box; 53-Resin block peeling unit; 531-Scraper; 5311-Groove; 5312-Waste discharge port; 5313-First connecting rod; 5314-Second connecting rod; 532-Rotating brush; 5321-Telescopic cylinder; 5323-Waste collection trough; 6-Control system. Detailed Implementation

[0051] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which form part of the present invention and are used together with the invention to illustrate the principles of the invention.

[0052] Example 1

[0053] One specific embodiment of the present invention discloses a composite material part molding system, such as... Figure 1 As shown, it includes a dispensing machine 1 and a cutting device 4;

[0054] Injection molding machine 1 is used for injection molding of composite material parts, and cutting equipment 4 is used for cutting and molding of composite material parts.

[0055] Specifically, such as Figure 2 As shown, the glue dispensing machine 1 includes a glue dispensing machine body 11 and a resin container 12.

[0056] Mold 2 is disposed within the body 11 of the dispensing machine 1. Mold 2 contains a fiber preform, which can be a fiber layup or a three-dimensional fabric laid at a predetermined angle. In this embodiment, the fiber is one or more of ceramic fiber, carbon fiber, and glass fiber.

[0057] The resin container 12 stores liquid resin prepared in a predetermined ratio and injects it into the cavity of the mold 2 through the injection pipe, allowing the resin to fully impregnate the fiber preform. Under the pressure and temperature set by the injection machine 1, the resin completes the curing reaction in the cavity, forming a composite material blank. The injection machine body 11 has temperature control and pressurization functions. After the resin is injected into the cavity of the mold 2, the fiber preform impregnated with the resin solution in the cavity is pressurized, heated, and cured, resulting in a dense structure and stable performance of the formed composite material blank.

[0058] Furthermore, it also includes a transfer device 3, which is used to transport the cured and demolded composite material part to the cutting device 4. In this embodiment, the transfer device 3 is a transfer slide rail.

[0059] like Figure 3 As shown, the cutting equipment 4 includes a machining spindle 42, a cutting tool 41, a worktable 43, and a tool air-cooling mechanism 44. The worktable 43 is used to fix the composite material part blank. The cutting tool 41 is mounted on the machining spindle 42, and the tool performs precision cutting on the part under high-speed rotation to remove burrs, flash, and excess material, thereby achieving the final forming accuracy of the part.

[0060] The tool cooling mechanism 44 is located inside the cutting tool 41 and is used to cool the tool and blow away accumulated dust on the workpiece on the worktable 43. The tool cooling mechanism 44 sprays cooling airflow in a direction through the air outlet 441, which effectively reduces the high temperature generated during the cutting process and prevents the tool from shortening its life due to thermal wear.

[0061] Furthermore, it also includes a cleaning device 5, which is used for dust collection and cleaning during the cutting process of composite material parts.

[0062] The cleaning device 5 includes a dust collection unit 51. The dust collection unit 51 includes a dust collection hood 511, a dust collection pipe 512, and a negative pressure fan. The dust collection hood 511 is disposed around the machining spindle 42 of the cutting tool 41. The negative pressure fan is connected to the dust collection hood 511 through the dust collection pipe 512 and is used to draw dust into the dust collection pipe 512 using negative pressure.

[0063] A dust collection hood 511 is disposed around the machining spindle 42 of the cutting tool 41, and a negative pressure fan is connected to the dust collection hood 511 via a dust collection pipe 512. Furthermore, a dust collection seat 513 is also included, which is connected to the dust collection pipe 512, the negative pressure fan, and external collection equipment. Dust enters the dust collection seat 513 through the dust collection pipe 512 and is then transported to the outside for processing.

[0064] The tool cooling mechanism 44 blows airflow to the workpiece through the air outlet 441, causing dust to leave the processing area and enter the dust collection pipe 512 through the dust collection hood 511, and then be transported to the dust collection seat 513. The cooling airflow and the negative pressure field inside the dust collection hood 511 form a coupling effect, effectively guiding the dust along the preset flow channel into the filter device.

[0065] Furthermore, the blowing direction of the tool air-cooling mechanism 44 is at an angle of 60°-90° with the worktable 43. This angle range can effectively avoid airflow interference with the machining area, while enhancing the dust-raising effect and improving dust collection efficiency.

[0066] The air-cooling mechanism has multiple air outlets 441; exemplarily, this embodiment has four. The four air outlets 441 are evenly distributed around the tool circumference to ensure symmetrical output of cooling airflow and improve the uniformity of dust disturbance. The axis of the air outlets is parallel to the axis of the tool spindle, and each air outlet 441 is inclined towards the cutting point.

[0067] In this embodiment, the cooling airflow and the negative pressure field of the dust collection hood 511 create a synergistic flow-guiding effect. The cooling airflow blows away the accumulated dust, enhancing the dust collection efficiency and adapting to various sizes of cutting spindles. Furthermore, the inner wall of the dust collection hood 511 is equipped with an anti-stick coating to reduce resin particle adhesion and clogging. The direction of dust blowing can be adjusted by regulating the speed and angle of the negative pressure fan.

[0068] Furthermore, it also includes a control system 6 for controlling the movement of the dispensing machine, cutting equipment, and cleaning equipment.

[0069] Example 2

[0070] This embodiment is a further improvement on Embodiment 1, to better separate and filter fiber and resin waste.

[0071] Furthermore, such as Figure 4 As shown, the cleaning device 5 also includes a fiber clump removal unit 52 for filtering fiber clumps and large particles in the inhaled dust.

[0072] The fiber clump filtration unit 52 includes a dust filtration duct 521, a sieve assembly 523, and a drive assembly 522.

[0073] The dust filtration duct 521 is connected to the hollow collection seat at the end of the suction duct 512. A venturi tube is installed in the dust filtration duct 521. The contraction and expansion sections of the venturi tube effectively reduce airflow resistance, accelerate airflow, improve dust conveying efficiency, and prevent fiber clumps from accumulating and clogging the duct.

[0074] Furthermore, such as Figure 5As shown, the screening component 523 is located downstream of the venturi tube in the dust filtration pipe 521 and is used to filter the fiber clumps and large particles sucked into the dust filtration pipe 521 to prevent the fiber clumps from adhering to the pipe wall.

[0075] The filtration assembly 523 includes a housing 5231 and a screen 5232.

[0076] The housing 5231 is a hollow cuboid structure, inserted into the dust filter pipe 521, and detachably connected to the dust filter pipe 521. To fit the housing 5231, the screen 5232 has a rectangular cross-section perpendicular to the airflow direction, and the screen 5232 can reciprocate within the housing 5231, allowing fiber clumps to be trapped on the surface of the screen 5232 with the airflow, while preventing them from accumulating in a single location. It should be noted that the screen 5232 always covers the flow section of the dust filter pipe 521 during its reciprocating motion, ensuring full-section filtration when the airflow passes through.

[0077] For example, the inner wall of the housing 5231 is provided with a first sliding groove, and the two sides of the screen 5232 are provided with first protrusions. The first protrusions can slide in the first sliding groove, driving the screen 5232 to slide in the housing 5231 to achieve reciprocating filtration. In some possible embodiments, a sliding rail and roller combination structure can be used instead of the sliding groove and protrusions to reduce frictional resistance and improve the smoothness of the screen 5232's movement.

[0078] Dust will accumulate on the surface of the screen 5232 during long-term use, clogging the mesh of the screen 5232 and affecting the filtration efficiency. Furthermore, in this embodiment, a cleaning structure for the screen 5232 is also provided at the top and bottom of the housing 5231 to remove the dust accumulated on the surface of the screen 5232 during filtration in real time.

[0079] like Figure 6 As shown, in this embodiment, the cleaning structure for the screen 5232 is a cleaning brush 5233, the effective length of which is greater than the width of the screen 5232. The cleaning brush 5233 is located at the top and bottom of both ends of the housing 5231, with the brush body facing the screen 5232. When the screen 5232 moves to the position of the cleaning brush 5233, the cleaning brush 5233 contacts and adheres to the surface of the screen 5232 to remove fiber clumps and dust adhering to its surface, ensuring the permeability of the screen 5232. Cleaning brushes 5233 are provided at the top and bottom of both ends of the housing 5231. The length of the housing 5231 is designed so that both ends can fully reach the position of the cleaning brush 5233 when the screen 5232 reciprocates, ensuring that the entire cross-section of the screen 5232 can be cleaned.

[0080] In this embodiment, the cleaning brush 5233 is used as the cleaning structure for the screen 5232. The cleaning brush 5233 is located at the top and bottom of both ends of the housing 5231, ensuring that the entire cross-section of both the upper and lower surfaces of the screen 5232 is cleaned during reciprocating motion, effectively preventing dust accumulation and mesh blockage. Compared to using a vibration or impact structure to shake off the dust on the screen 5232, which would re-raise the dust and cause secondary pollution, the cleaning brush 5233 cleaning method is more stable and efficient, and does not disturb the airflow.

[0081] The filtration assembly 523 also includes a brush scraper 5234 for cleaning fiber residue on the cleaning brush 5233 to prevent the cleaning brush 5233 from failing due to excessive dust accumulation.

[0082] The brush scraper 5234 is slidably mounted on the cleaning brush 5233. The brush scraper 5234 is a retractable scraper 531, the working surface of which is located on one side of the cleaning brush 5233 and is in contact with the brush body. When the cleaning brush 5233 is covered with fiber residue as it moves with the screen 5232, the retractable scraper 531 is in close contact with the brush body and scrapes off the remaining fiber debris or large dust particles on the cleaning brush 5233 by sliding on the brush body.

[0083] Exemplarily, the brush scraper 5234 has a U-shaped structure. The two wings of the U-shaped structure are slidably disposed on the side plates of the cleaning brush 5233, and the middle portion of the U-shaped structure is disposed on one side of the cleaning brush 5233. In some possible embodiments, the brush scraper 5234 can also be configured as a U-shaped structure, which is fitted around the outer periphery of the cleaning brush 5233. The middle portion of the U-shaped structure or the inner wall of the U-shaped structure remains in contact with the brush surface, and reciprocating motion achieves the scraping of residue along the entire length of the brush, ensuring that the cleaning brush 5233 maintains its cleaning efficiency over a long period.

[0084] For example, pull rods 5235 are connected to both sides of the brush scraper 5234. The pull rods 5235 are provided with second protrusions, and second sliding grooves are provided on both sides of the brush scraper 5234. The second protrusions can slide in the second sliding grooves, allowing the brush scraper 5234 to move on the cleaning brush 5233. The reciprocating motion of the pull rods 5235 causes the brush scraper 5234 to move periodically along the length of the cleaning brush 5233, effectively scraping away residual fibers and dust wrapped around the surface of the cleaning brush 5233, preventing the brush from clogging, and ensuring its continuous and effective contact with the surface of the screen 5232.

[0085] As a possible embodiment, the other end of the pull rod 5235 is connected to the telescopic cylinder 5321, which drives the pull rod 5235 to reciprocate, scraping away fibers and dust residues on the surface of the cleaning brush 5233.

[0086] Furthermore, a fiber collection box 5236 is provided at the lower part of the housing 5231 corresponding to the position of the cleaning brush 5233. This box is used to collect fibers and dust dropped by the cleaning brush 5233, as well as fibers and dust scraped off by the cleaning components of the cleaning brush 5233. These fibers and dust fall into the fiber collection box 5236 below for centralized processing, preventing secondary re-entrainment. The fiber collection box 5236 adopts a detachable design for easy regular cleaning and maintenance.

[0087] In this embodiment, the fiber collection box 5236 uses a conical structure, with the upper cross-sectional area being smaller than the lower cross-sectional area. Correspondingly, the waste discharge port at the lower part of the shell 5231, corresponding to the fiber collection box 5236, is also designed as a conical structure. This facilitates the smooth sliding and concentrated collection of dust and fibers under gravity, reducing internal accumulation or dust and fiber adhesion to the waste discharge port and the wall surface of the fiber collection box 5236. This effectively improves collection efficiency and reduces maintenance frequency. The smooth inner wall of the conical structure further reduces the probability of residue adhesion, ensuring that dust and fibers falling off during cleaning can quickly fall to the bottom of the hopper, avoiding blockage of the waste discharge port.

[0088] Preferably, the waste discharge port at the bottom of the housing 5231 is the same width as the waste discharge port, and the cross-section of the waste discharge port and the fiber collection box 5236 perpendicular to the width is conical. The fiber collection box 5236 is fitted onto the waste discharge port so that all the dust and fibers hanging on the cleaning brush 5233 enter the fiber collection box 5236 for collection.

[0089] As the screen 5232 slides back and forth, the cleaning brush 5233 simultaneously rubs its surface, peeling off the attached fiber debris. At the same time, the pull rod 5235 drives the brush scraper 5234 to reciprocate, removing any remaining fiber residue entangled on the cleaning brush 5233 and preventing clogging that could affect the cleaning effect. The brush scraper 5234 reciprocates along the second groove, periodically scraping away accumulated debris from the brush and guiding it into the conical fiber collection box 5236. The fiber clumps slide through the fiber collection box 5236 into the removable waste bin for centralized processing. The device achieves multi-stage self-cleaning through the linkage of the screen 5232, the cleaning brush 5233, and the brush scraper 5234, ensuring long-term stable operation of the filtration channel.

[0090] like Figure 4 As shown, the drive assembly 522 is disposed on one side of the filter assembly 523. The drive assembly 522 is used to drive the filter assembly 523 to reciprocate in the dust filtration duct 521, preventing dust from accumulating in large quantities at the center of the screen 5232 surface, thus affecting the filtration efficiency and improving the utilization rate and service life of the screen 5232. The drive assembly 522 is disposed on the outside of the dust filtration duct 521 and is used to drive the screen 5232 to reciprocate. It includes a fixed base 5221, a motor, a rotating wheel 5223, and a guide rod 5225.

[0091] The mounting base 5221 has an L-shaped structure and is used to fix the rotating wheel 5223 and the swing arm 5224. The output shaft of the motor passes through the mounting base 5221 and is connected to the shaft of the rotating wheel 5223, driving the rotating wheel 5223 to rotate.

[0092] like Figure 7 As shown, the guide rod 5225 is fixed to the lower part of the rotating wheel 5223, and the guide rod 5225 is connected to the end of the screen 5232 through the guide through hole on the end face of the housing 5231. The length direction of the guide rod 5225 is the same as the movement direction of the screen 5232. A guide ring 5222 is provided on the fixed base 5221. The guide ring 5222 forms a channel for the guide rod 5225 to pass through and move. The guide rod 5225 moves in the channel of the guide ring 5222, driving the screen 5232 to perform reciprocating linear motion.

[0093] Furthermore, it also includes a swing arm 5224, one end of which is connected to the rotating wheel 5223, and the other end is connected to the guide rod 5225. Specifically, the swing arm 5224 includes a rod portion and a meshing portion, with a hinge shaft at the connection between the rod portion and the meshing portion. The rod portion is provided with an elongated through groove, and the edge of the rotating wheel 5223 is provided with a pin. The rotation of the rotating wheel 5223 drives the pin to reciprocate within the elongated through groove, causing the swing arm 5224 to swing back and forth about the hinge point as an axis, and the meshing portion swings back and forth accordingly. The guide rod 5225 is provided with a first toothed structure along its length, and the meshing portion is provided with a second toothed structure that matches the first toothed structure. The two mesh and drive each other, converting the reciprocating swing of the swing arm 5224 into the linear reciprocating motion of the guide rod, thereby driving the screen 5232 to slide stably within the housing 5231. After the motor starts, the rotating wheel 5223 rotates and drives the swing arm 5224 to swing through the cooperation of the pin and the elongated through groove. Then, through the toothed structure, it drives the guide rod to move back and forth, realizing the continuous reciprocating cleaning action of the screen 5232, ensuring the long-term stability of filtration efficiency.

[0094] In some possible embodiments, multiple screens 5232 in the dust filtration duct 521 can be stacked to enhance the filtration effect. The stacked screens 5232 are arranged at a certain interval, and the pore size of each layer of screens 5232 gradually decreases from front to back, forming a gradient filtration structure and improving the interception ability of fibers of different particle sizes.

[0095] Each layer of screen 5232 is equipped with an independent cleaning brush 5233 and cleaning components to ensure that accumulated debris in each layer can be removed in a timely manner. The airflow channels between adjacent screens 5232 are optimized to reduce wind resistance and maintain system ventilation efficiency. At the same time, the gradient filtration structure is set with different pore sizes according to the fiber particle size distribution characteristics to ensure filtration accuracy and airflow. The multi-layer screens 5232 achieve synchronous reciprocating motion through a shared drive component 522 to ensure consistent cleaning.

[0096] Example 3

[0097] This embodiment is a further improvement on embodiment 2. Since resin is prone to adhering to workpieces when it gets damp, in order to remove resin debris and resin blocks adhering to the workpieces, the cleaning equipment in this embodiment also includes a resin block peeling unit 53, which is used to remove resin debris or resin blocks adhering to the composite material parts.

[0098] like Figure 8 As shown, the resin block peeling unit 53 includes a scraper 531 and a rotating brush 532.

[0099] The scraper 531 is made of silicone, which can conform to the contours of curved surfaces for cleaning without damaging the workpiece surface.

[0100] Furthermore, the contact surface between the scraper 531 and the workpiece is provided with multiple grooves 5311. The grooves 5311 include transverse grooves 5311 and longitudinal grooves 5311. The contact surface is also provided with a waste discharge outlet 5312, which is a through hole located at the intersection of the transverse and longitudinal grooves. When the scraper 531 removes resin chips and lumps from the workpiece surface, the grooves 5311 increase the scraping friction and change the flow direction of the resin chips, while the through hole allows the chips to pass through the plate, preventing accumulation. The grid structure formed by the interlacing transverse and longitudinal grooves and the guiding effect of the waste discharge outlet 5312 cause the chips to fall off quickly.

[0101] The scraper 531 is driven by a motor and connecting rods to reciprocate along a predetermined trajectory, achieving efficient cleaning of the workpiece surface and enhancing scraping efficiency. Specifically, the connecting rods include a first connecting rod 5313 and a second connecting rod 5314, with the first connecting rod 5313 being shorter than the second connecting rod 5314. The first connecting rod 5313 is hinged to the output shaft of the motor, and one end of the second connecting rod 5314 is hinged to the end of the first connecting rod 5313, while the other end is hinged to the scraper 531, forming a double-link transmission mechanism. When the motor rotates, the coordinated movement of the long and short connecting rods drives the scraper 531 to reciprocate along the predetermined trajectory, ensuring stable contact with the workpiece surface. Combined with the material and structure of the scraper 531, it adapts to the cleaning needs of different curved surface contours, improving removal efficiency and surface integrity.

[0102] like Figure 9 As shown, the rotary brush 532 has a spiral structure and is used to remove resin debris and clumps adhering to the workpiece after the scraper 531 has removed it. The rotary brush 532 is made of corrosion-resistant stainless steel wire with a moderate brush density, enabling efficient removal of sticky residues without damaging the substrate. Driven by a telescopic cylinder 5321, the rotary brush 532 reciprocates to continuously remove chips from the scraper 531. Its rotation direction is opposite to the cutting feed direction to enhance the peeling effect. The spiral structure of the rotary brush 532 facilitates the detachment of debris from the brush surface.

[0103] The resin block stripping unit 53 also includes a waste collection tank 5323 for collecting resin debris.

[0104] The usage method of this embodiment is as follows:

[0105] During the workpiece cutting process, the air-cooled structure of the cutting tool blows air towards the workpiece, raising dust, fibers, and resin particles from the workpiece surface. These raised particles, guided by a negative pressure fan, enter the dust collection hood 511 and then the dust collection pipes 512 on both sides, eventually reaching the dust collection seat 513 and entering the dust filter pipe 521. The dust filter pipe 521 is equipped with a Venturi tube to increase the airflow velocity, creating a localized negative pressure that promotes the efficient intake of dust, fiber clumps, and resin particles. Accelerated by the Venturi tube, the dust, fiber, and resin particles enter the sieve assembly 523, where larger particles and fiber dust are captured by the screen 5232. Driven by the drive assembly 522, the screen 5232 reciprocates. The cleaning brush 5233 on the housing 5231 adheres to the screen 5232, brushing off the large dust particles and fiber resin particles accumulated on the screen 5232 into the waste fiber collection box 5236. At the same time, the dust and fiber resin particles attached to the cleaning brush 5233 are scraped off by the reciprocating motion of the brush scraper 5234 and fall into the fiber collection box 5236.

[0106] On the other hand, resin particles adhering to the workpiece are removed by the resin block stripping unit 53. The scraper 531, driven by a motor, slides back and forth across the workpiece surface, using the groove 5311 and through-holes to peel off residue. The rotating brush 532, driven by a telescopic cylinder 5321, extends and retracts, thoroughly removing resin debris from the scraper 531 surface to prevent secondary contamination. The waste collection trough 5323, located below the resin block stripping unit 53, promptly collects the cleaned dust and resin particles. The inner wall of the waste collection trough 5323 is equipped with a guide slope to ensure that residue slides smoothly into the bottom chip collection chamber, preventing accumulation and blockage.

[0107] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A molding system for composite material parts, characterized in that, It includes a dispensing machine, cutting equipment, and cleaning equipment; the dispensing machine is used for injection molding of composite material parts, and the cutting equipment is used for cutting and molding between composite materials; The cutting equipment includes a cutting tool, a worktable, and a tool air-cooling mechanism, which is located inside the cutting tool. The tool air-cooling mechanism is used to cool the tool and blow away the dust accumulated on the workpiece on the worktable. The cleaning equipment is used for dust collection and cleaning during the cutting process of composite material parts; the cleaning equipment includes a dust collection unit and a fiber clump filtration unit, and the dust collection unit includes a dust collection hood, a dust collection pipe and a negative pressure fan; The fiber clump removal unit includes a dust filtration duct, a sieving assembly, and a drive assembly; the dust filtration duct is connected to a hollow collection seat at the end of the suction duct; a venturi tube is installed in the dust filtration duct; the sieving assembly includes a housing and a screen; the housing is a hollow cuboid structure, inserted into the dust filtration duct, and detachably connected to the dust filtration duct; the screen has a rectangular cross-section, perpendicular to the airflow direction, and the screen can reciprocate within the housing; The screen cleaning structure consists of a cleaning brush and a brush body scraper, with the effective length of the cleaning brush being greater than the width of the screen. The cleaning brush is located at the top and bottom of both ends of the housing, with the brush body facing the screen. When the screen moves to the position of the cleaning brush, the cleaning brush contacts the screen surface and adheres to the screen surface. The brush body scraping component is slidably mounted on the cleaning brush. The brush body scraping component is a retractable scraper, and its working surface is located on one side of the cleaning brush body and adheres to the brush body. A drive assembly is located on one side of the filter assembly. The drive assembly drives the filter assembly to reciprocate in the dust filtration duct. It includes a rotating wheel, a guide rod, and a swing arm. The guide rod is fixed to the lower part of the rotating wheel and is connected to the end of the screen through a guide hole on the end face of the housing. The length direction of the guide rod is the same as the movement direction of the screen. One end of the swing arm is connected to the rotating wheel, and the other end is connected to the guide rod. The swing arm includes a rod part and a meshing part. A hinge shaft is provided at the connection between the rod part and the meshing part. The rod part is provided with an elongated through groove, and a pin is provided on the edge of the rotating wheel. The pin can reciprocate in the elongated through groove. A first tooth structure is provided on the guide rod along its length direction, and a second tooth structure that matches the first tooth structure is provided on the meshing part.

2. The molding system for composite material parts according to claim 1, characterized in that, A glue dispensing machine includes a glue dispensing machine body and a resin container; The mold is set inside the injection molding machine body, and the mold contains fiber preforms; The resin container is connected to the mold via a pipe. The resin container is used to inject resin into the mold so that the fiber preform can be injection molded.

3. The molding system for composite material parts according to claim 1, characterized in that, The cutting equipment also includes a machining spindle, a dust hood is set around the machining spindle, and a negative pressure fan is connected to the dust hood through a dust suction pipe to draw dust into the dust suction pipe using negative pressure.

4. The molding system for composite material parts according to claim 1, characterized in that, The tool air-cooling mechanism is equipped with four air outlets, through which the dust is blown to the dust collection hood and dust collection pipe.

5. The molding system for composite material parts according to claim 1, characterized in that, The cleaning equipment also includes a resin block stripping unit.

6. The molding system for composite material parts according to claim 1, characterized in that, It also includes transfer equipment, which is used to transport injection-molded composite parts to cutting equipment.

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