Molding equipment and molding method based on HP-RTM process

Abstract

The invention discloses forming equipment and a forming method based on an HP-RTM process, and relates to the technical field of forming equipment.The forming equipment comprises a machine base, a mold body and a middle rack, the mold body comprises an upper mold plate and a lower mold plate, and a cavity is formed in the lower mold plate; according to the rotary forming material taking mechanism, in the using process, multiple sets of lower mold plates rotate on a rotating ring, resin is injected into cavities in the lower mold plates after the lower mold plates rotate to the bottom of the upper mold plate, and then the lower mold plates are driven by the rotating ring to leave the lower portion of the upper mold plate after solidification; meanwhile, the other set of lower mold plates move to the position below the upper mold plate to complete resin injection operation again, the progress of forming products in the lower mold plates is increased, after the lower mold plates leave the position below the upper mold plate, the lower mold plates are driven by a fixed motor to turn over, gas is sprayed into a cavity through an internal hose, so that the products attached to the cavity fall off, and therefore the production efficiency is improved. And the product taking operation is completed, and the product production efficiency of equipment is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of molding equipment, and in particular relates to a molding equipment and a molding method based on a HP-RTM process. Background Art

[0002] The HP-RTM process is currently the only mass production process that can effectively realize the mass production of composite products at home and abroad. It uses high pressure to mix the resin and inject it into a vacuum-tight mold with prefabricated molding parts in advance. The prefabricated molding parts are not glass fiber reinforced materials. After resin flow molding, impregnation, curing and demolding, the molding process of composite products is obtained. Compared with traditional SMC and PCM processes, the weight reduction is more obvious, the cost is lower, and the production cycle is faster. When the HP-RTM process is used to produce products, it will be produced through a high-pressure glue injection molding equipment. The mold is installed in the high-pressure glue injection molding equipment, and then the resin in the hopper at the top of the molding equipment is injected into the cavity in the mold, and then cooled and cured to form a product.

[0003] In the prior art, the upper template in the mold moves downward to contact the lower template and then injects molten resin into the cavity of the lower template to produce a molded product. After the molten resin is injected into the cavity, it is waited for cooling and solidification, and then the upper template moves upward to open and take out the produced product. However, it is inconvenient to take out the produced product, and manual removal is required, which not only reduces the operating efficiency but also increases the workload of the operator. In addition, the lower template needs to be suspended during the removal process. The product in the lower template must be taken out before the molding operation of the next product can be carried out again, which reduces the problem of equipment affecting product production efficiency. For this reason, we propose a molding device and a molding method based on HP-RTM process. Summary of the invention

[0004] The object of the present invention is to provide a molding device and a molding method based on the HP-RTM process to solve the technical problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: a molding device based on HP-RTM process, comprising a machine base, a mold body and a middle frame, the mold body comprising an upper mold plate and a lower mold plate, the lower mold plate having a cavity inside for molding the product, and further comprising:

[0006] The turning assembly is arranged on the top of the machine base and is used to drive the lower template to turn over;

[0007] The rotating assembly is arranged on the top of the machine base and is used to drive the lower template to rotate.

[0008] Preferably, the rotating assembly comprises a rotating ring and a rotating plate, and a plurality of connecting plates are fixedly arranged between the rotating plate and the rotating ring;

[0009] A plurality of fixing frames are fixedly arranged between the rotating plate and the rotating ring, a driving motor is fixedly arranged inside the machine base, a rotating column is fixedly arranged between the working end of the driving motor and the bottom of the rotating plate, and an ejection cylinder is arranged inside the lower template.

[0010] Preferably, an upper rotating joint is provided on the top of the rotating plate, an air supply pipe is fixedly provided on the top of the upper rotating joint, an inner rotating shaft is provided between one end of the fixing frame and the rotating plate, and an outer rotating shaft is provided between the other end of the fixing frame and the rotating ring.

[0011] Preferably, a plurality of sets of hoses are fixedly provided on the outside of the vacuum lower ring tube, and the ends of the hoses pass through the interior of the rotating ring, the outer rotating shaft, the fixing frame and the lower template and extend to the interior of the cavity.

[0012] Preferably, the flip assembly includes multiple groups of fixed motors fixed on the top of the rotating ring and multiple groups of limit cylinders fixed on the top of the rotating plate;

[0013] The working end of the fixed motor is fixedly provided with a first gear, and the outer sleeve of the outer shaft is fixedly provided with a second gear.

[0014] Preferably, a limit plate is fixedly sleeved on the outer part of the inner rotating shaft, a limit hole is provided on the surface of the limit plate, and the working end of the limit cylinder can penetrate into the inner part of the limit hole;

[0015] A conductive slip ring is arranged outside the rotating column, and a circuit is fixedly arranged on the top of the rotating plate.

[0016] Preferably, a purge member is provided on one side of the machine base, the purge member comprises an arc tube and a screw rod, a plurality of groups of air blowing nozzles are fixedly provided on the top of the arc tube, a nut seat is provided on the outside of the screw rod, and two groups of mounting bearings and a limit plate are fixedly provided on the surface of the nut seat;

[0017] A rod frame and a stabilizing rotating rod are arranged inside the mounting bearing, and a ring gear is fixedly mounted on one end of the rod frame and the stabilizing rotating rod, and a concave rack is meshed with the outside of the ring gear. A side frame is fixedly arranged on the nut seat, and a moving cylinder is fixedly arranged on the top of the side frame.

[0018] Preferably, an automatic unloading assembly is arranged on the back of the middle frame, and the automatic unloading assembly comprises a connecting frame and a plurality of groups of preformed parts located inside the connecting frame, a vertical frame is fixedly arranged on the connecting frame, two groups of lower rotating wheels and two groups of upper rotating wheels are rotatably arranged on the vertical frame, and vertical transmission belts are arranged outside the lower rotating wheels and the upper rotating wheels;

[0019] A mounting motor is fixedly arranged on the vertical frame, a working end of the mounting motor is fixedly connected to the upper rotating wheel, and upper transmission belts are sleeved on the outer sides of the two groups of upper rotating wheels.

[0020] Preferably, an upper frame is arranged on the top of the middle frame, a hopper is arranged on the upper frame, and a material injection pipe is arranged at the bottom of the hopper.

[0021] The present invention also discloses a molding method based on the HP-RTM process, which specifically comprises the following steps:

[0022] S1, stack multiple preforms in a connecting rack, then place the preforms into the cavity in the lower template through a rotating vertical drive belt, and then pour the resin into the hopper;

[0023] S2, turning on the driving motor in the machine base to drive the lower template to rotate, so that the lower template with the preformed part is rotated to a position below the upper template;

[0024] S3, turn on the equipment, the middle frame moves downward to drive the upper template, the hopper, and the injection pipe to move, then the upper template is molded with the lower template below, and the injection pipe injects the resin into the cavity in the lower template;

[0025] S4, after the injection is completed and cooled, the upper mold plate rises and opens, and then the lower mold plate rotates, driving the product molded with resin to rotate to the outside, and then the lower mold plate flips downward, and the product in the cavity falls to complete the material removal;

[0026] S5. Check product quality through visual inspection and inspection equipment;

[0027] S6. Trim the excess parts and burrs on the product by cutting equipment;

[0028] S7, packing and delivery.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] (1) The present invention is designed with a rotary molding material taking mechanism. During use, multiple groups of lower templates are set to rotate on a rotating ring. After rotating to the bottom of the upper template, resin is injected into the cavity inside the upper template. After solidification, the lower template is driven by the rotating ring to leave the bottom of the upper template. At the same time, another group of lower templates moves to the bottom of the upper template to complete the resin injection operation again, thereby increasing the progress of product molding in the lower template. Moreover, after the lower template leaves the bottom of the upper template, it is driven by a fixed motor to rotate and flip 180 degrees. After that, gas is sprayed into the cavity through an internal hose to make the product attached to the cavity fall off, thereby completing the product removal operation and improving the equipment's product production efficiency.

[0031] (2) The present invention adopts a designed purge part. When the lower template is flipped downward, the product attached to the cavity falls out to complete the removal of the product. Then, high-pressure gas is blown into the cavity through the blowing nozzle to blow away some foreign matter attached to the cavity, thereby keeping the cavity clean and preventing foreign matter from affecting the quality of the product after the subsequent injection of resin, reducing the workload of the operator and improving the production quality of the equipment.

[0032] (3) The present invention is designed with an automatic material discharge assembly. When the lower template is rotated to the position below the connecting frame, two sets of vertical transmission belts are used to drive the preformed part located at the bottom of the connecting frame to move downward into the cavity, thereby automatically placing the preformed part in the cavity without manual operation, further reducing the workload of the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a structural schematic diagram of the present invention;

[0034] Figure 2 It is a right view structural schematic diagram of the present invention;

[0035] Figure 3 It is a bottom view structural schematic diagram of the swivel of the present invention;

[0036] Figure 4 It is a schematic diagram of the lower template structure of the present invention;

[0037] Figure 5 For the present invention Figure 4 A schematic diagram of the enlarged structure of the middle part A;

[0038] Figure 6 It is a schematic diagram of the structure of the upper rotary joint of the present invention;

[0039] Figure 7 For the present invention Figure 6 The enlarged structural diagram of the middle B part;

[0040] Figure 8 It is a schematic diagram of the structure of the rotating column and the conductive slip ring of the present invention;

[0041] Fig. 9 It is a schematic diagram of the structure of the purge member of the present invention;

[0042] Fig.10 It is a left-side structural schematic diagram of the support bearing and the screw rod of the present invention;

[0043] Fig.11 It is a bottom view structural schematic diagram of the preform of the present invention;

[0044] Fig.12 It is a rear view structural schematic diagram of the vertical frame of the present invention;

[0045] In the figure: 100, hopper; 101, upper frame; 102, injection pipe; 103, middle frame; 104, upper template; 105, machine base; 106, lower template; 200, support bearing; 201, screw rod; 202, arc tube; 203, blowing nozzle; 204, rod frame; 205, mounting bearing; 206, ring gear; 207, limit rod; 208, limit plate; 209, concave rack; 210, nut seat; 211, moving cylinder; 212, stable rotating rod; 300, rotating ring; 301, rotating plate; 302, upper rotating joint; 304, ring line; 305, connecting plate; 306, rotating column; 30 7. Vacuum lower ring tube; 308. Ejection cylinder; 309. Conductive slip ring; 310. Fixed motor; 311. Upper air pipe; 312. Line; 313. First gear; 314. Air pipe; 315. Compressor; 316. Fixed frame; 317. Outer shaft; 318. Second gear; 319. Limiting plate; 320. Vacuum connecting pipe; 321. Limiting cylinder; 322. Inner shaft; 323. Limiting hole; 324. Vacuum lower tube; 400. Preform; 401. Connecting frame; 403. Vertical frame; 404. Vertical transmission belt; 405. Upper transmission belt; 406. Install motor; 408. Lower rotating wheel. DETAILED DESCRIPTION

[0046] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0047] Embodiment 1

[0048] See also Figure 1-Figure 8 The present invention provides a technical solution: a molding device based on the HP-RTM process, comprising a machine base 105, a mold body and a middle frame 103, the mold body comprising an upper mold plate 104 and a lower mold plate 106, a cavity is provided inside the lower mold plate 106, and the product is molded by injecting resin into the cavity and then molding, and also comprising a rotary molding material taking mechanism, the rotary molding material taking mechanism comprising a flip component and a rotating component;

[0049] The rotating assembly includes a rotating ring 300 and a rotating plate 301. A plurality of connecting plates 305 are fixedly arranged between the rotating plate 301 and the rotating ring 300. A plurality of fixing frames 316 are also fixedly arranged between the rotating plate 301 and the rotating ring 300. The lower template 106 is fixed on the fixing frame 316. The lower template 106 is fixed on the fixing frame 316. A driving motor is fixedly arranged inside the machine base 105. A rotating column 306 is fixedly arranged between the working end of the driving motor and the bottom of the rotating plate 301. An ejection cylinder 308 is arranged inside the lower template 106. When the lower template 106 is turned over to an inverted state, the ejection cylinder 308 is used to eject the product formed in the cavity for easy removal.

[0050] An upper rotating joint 302 is provided on the top of the rotating plate 301. Through the upper rotating joint 302, the vacuum gas can be conveniently transported to the cavity through the gas pipe 314. When the rotating plate 301 rotates, the hose will continue to maintain the state of inputting vacuum gas. The gas pipe 314 is fixedly provided on the top of the upper rotating joint 302, and the vacuum lower pipe 324 is fixedly provided on the bottom of the rotating plate 301. A connecting pipe is fixedly provided between the upper rotating joint 302 and the vacuum lower pipe 324. The vacuum gas or the wind generated by the high-pressure blower passes through the gas pipe 314, the upper rotating joint 302, the vacuum lower pipe 324, the hose, and enters the cavity in sequence;

[0051] A vacuum lower ring tube 307 is fixedly arranged at the bottom of the rotating ring 300, a vacuum connecting tube 320 is fixedly arranged between the vacuum lower tube 324 and the vacuum lower ring tube 307, an inner rotating shaft 322 is arranged between one end 316 of the fixing frame and the rotating plate 301, and an outer rotating shaft 317 is arranged between the other end of the fixing frame 316 and the rotating ring 300;

[0052] A plurality of sets of hoses are fixedly provided on the outside of the vacuum lower ring tube 307 , and the ends of the hoses pass through the inside of the rotating ring 300 , the outer rotating shaft 317 , the fixing frame 316 and the lower template 106 and extend to the inside of the cavity.

[0053] Embodiment 2

[0054] Based on Example 1, please refer to Figure 1-Figure 8 The flip assembly includes multiple groups of fixed motors 310 fixed on the top of the rotating ring 300 and multiple groups of limiting cylinders 321 fixed on the top of the rotating plate 301. The working end of the limiting cylinder 321 is inserted into the limiting hole 323 to limit the lower template 106. The fixed motor 310 is used to flip the lower template 106. The limiting cylinder 321 is used to limit the lower template 106. The lower template 106 is driven to flip by the fixed motor 310. The working end of the fixed motor 310 is fixedly provided with a first gear 313. The outer sleeve of the outer rotating shaft 317 is fixed with a second gear 318. The first gear 313 is meshed with the second gear 318.

[0055] The outer sleeve of the inner rotating shaft 322 is fixedly provided with a limiting disk 319, and a limiting hole 323 is provided on the surface of the limiting disk 319. The working end of the limiting cylinder 321 can penetrate into the limiting hole 323. A compressor 315 is fixedly provided on the top of the rotating plate 301. High-pressure gas is generated in the limiting cylinder 321 through the compressor 315. The high-pressure gas enables the working end of the limiting cylinder 321 to move. The compressor 315 is connected to the line 312 through an electric wire to supply power to the compressor 315. An upper air pipe 311 is fixedly provided on the top of the compressor 315. The upper air pipe 311 is connected to the upper air pipe 311. A pipeline is fixedly arranged between the limit cylinders 321, and a conductive slip ring 309 is arranged on the outside of the rotating column 306. Through the conductive slip ring 309, the fixed motor 310 can be energized while following the rotation of the rotating ring 300 and will not be affected by its rotation. A line 312 is fixedly arranged on the top of the rotating plate 301, one end of the line 312 is fixedly connected to the annular line 304, and the other end of the line 312 is fixedly connected to the conductive slip ring 309, the external wires are connected to the wires on the outer wall of the conductive slip ring 309, and then the wires located inside the conductive slip ring 309 are connected to the line 312.

[0056] The present invention adopts a designed rotary molding material-collecting mechanism. During use, multiple groups of lower templates 106 are arranged to rotate on the rotating swivel 300. After rotating to the bottom of the upper template 104, resin is injected into the cavity inside the upper template 104. After solidification, the lower template 106 is driven by the rotating swivel 300 to leave the bottom of the upper template 104. At the same time, another group of lower templates 106 moves to the bottom of the upper template 104 to complete the resin injection operation again, thereby increasing the progress of product molding in the lower template 106. Moreover, when the lower template 106 leaves the bottom of the upper template 104, it is driven by the fixed motor 310 to rotate and flip 180 degrees, and then gas is sprayed into the cavity through the internal hose to make the product attached to the cavity fall off, thereby completing the product removal operation and improving the equipment's product production efficiency.

[0057] When in use, the driving motor located in the machine base 105 is started, and then the rotating column 306 is driven to rotate, which can drive the rotating plate 301, the connecting plate 305, the rotating ring 300 and the multiple groups of lower templates 106 to rotate, and then one group of lower templates 106 is rotated to the position below the upper template 104, and then the middle frame 103, the upper frame 101, the hopper 100 and the injection pipe 102 are lowered, and then the bottom of the injection pipe 102 enters the cavity in the lower template 106 to inject resin, and then the resin fills the cavity, and the resin is injected into the cavity. Before the cavity is formed, an external vacuum pump and a high-pressure blower are connected through the gas delivery pipe 314. The vacuum pump and the high-pressure blower are connected to the gas delivery pipe 314 through a Y-shaped pipe. A valve is provided between the Y-shaped pipe and the vacuum pump and the high-pressure blower. When the cavity is evacuated, the valve between the Y-shaped pipe and the high-pressure blower is closed, and the vacuum pump is used to evacuate the air to make the cavity a vacuum state. The evacuation is to remove the gas in the cavity to ensure that the resin can fully infiltrate the preform 400. Then the resin is solidified and formed, and then the rotating plate 3 is rotated. 01 drives the lower template 106 with the molded product to rotate away from the upper template 104, then starts the corresponding fixed motor 310, drives the fixed frame 316 located on the outer shaft 317 to rotate, and then drives the lower template 106 to rotate 180 degrees. At this time, the lower template 106 and the molded product located in the cavity are in an inverted state, then closes the valve between the Y-shaped tube and the vacuum pump, opens the valve between the Y-shaped tube and the high-pressure blower, blows high-pressure gas into the hose through the high-pressure blower, and then blows the high-pressure gas into the cavity with the molded product attached, and at the same time, the product is pushed downward by the ejection cylinder 308, so that the product can fall off quickly, and the molded product is taken out, then the fixed motor 310 reverses, drives the lower template 106 to rotate 180 degrees, and the cavity continues to remain in an upward state. When the rotating swivel 300 drives the lower template 106 with the molded product to rotate away from the bottom of the upper template 104, the rotating swivel 300 will also drive another group of lower templates 106 to rotate to the bottom of the upper template 104 to inject resin;

[0058] When the lower template 106 rotates along with the rotating swivel 300 and the connecting plate 305, the working end of the limiting cylinder 321 penetrates into the limiting hole 323 in the limiting disk 319 to limit the limiting disk 319, thereby limiting the running lower template 106. When the lower template 106 is flipped over to an inverted state, the working end of the limiting cylinder 321 that penetrates into the limiting hole 323 will disengage from the limiting hole 323. When the cavity in the lower template 106 is in an upward state, the working end of the limiting cylinder 321 penetrates into the limiting hole 323 again to limit the lower template 106, thereby increasing the stability of the lower template 106 during operation and preventing accidental flipping and instability.

[0059] Embodiment 3

[0060] Based on Example 2, please refer to Figure 1 , Figure 2 , Fig. 9 and Fig.10 A purge member for cleaning foreign matter attached to the inner wall of the cavity in the lower template 106 is provided on one side of the machine base 105. The purge member includes an arc tube 202 and a screw rod 201. The screw rod 201 can drive the nut seat 210 to move when rotating, and then drive the blowing nozzles 203 on the multiple arc tubes 202 to move. Multiple groups of blowing nozzles 203 are fixedly provided on the top of the arc tube 202. A nut seat 210 is provided on the outside of the screw rod 201. Two groups of mounting bearings 205 and a limit plate 208 are fixedly provided on the surface of the nut seat 210 respectively.

[0061] A rod frame 204 and a stabilizing rotating rod 212 are arranged inside the mounting bearing 205. The rod frame 204 is located in the mounting bearing 205 on the left side of the concave rack 209, and the stabilizing rotating rod 212 is located in the mounting bearing 205 on the right side of the concave rack 209. One end of the rod frame 204 and the stabilizing rotating rod 212 are both sleeved and fixed with a ring gear 206, and the outer part of the ring gear 206 is meshed with a concave rack 209. A side frame is fixedly arranged on the nut seat 210, and a moving cylinder 211 is fixedly arranged on the top of the side frame. The moving cylinder 211 can drive the multiple groups of blowing nozzles 203 on the arc tube 202 to rotate an angle, thereby increasing the blowing effect on foreign matter on the cavity. The working end of the moving cylinder 211 is fixedly connected to the concave rack 209.

[0062] The arc tube 202 is fixed on the rod frame 204, and a fan is also installed inside the machine base 105. A telescopic air blowing pipe is fixedly arranged between the arc tube 202 and the fan. The arc tube 202 can be connected to the fan installed in the machine base 105 when rotating or moving through the telescopic air blowing pipe. A support bearing 200 is arranged on the outside of the screw rod 201, and the end of the limit rod 207 is fixed on the support bearing 200. The support bearing 200 is fixed on the front side of the machine base 105. A reduction motor is arranged at the end of the screw rod 201. The reduction motor can drive the screw rod 201 to rotate, and the reduction motor is fixed on the machine base 105.

[0063] The present invention adopts a designed purge piece. When the lower template 106 is flipped downward, the product attached to the cavity falls off to complete the removal of the product. Then, high-pressure gas is blown into the cavity through the blowing nozzle 203 to blow away some foreign matter attached to the cavity, thereby keeping the cavity clean and tidy, avoiding the foreign matter from affecting the quality of the product after the subsequent injection of resin, reducing the workload of the operator and improving the production quality of the equipment for the product.

[0064] When the lower template 106 with the formed product is turned over to an inverted state, the product falls off, and the installed fan located in the machine base 105 is turned on. The installed fan blows high-pressure wind into the cavity through the arc tube 202 and multiple groups of blowing nozzles 203 to blow away some foreign matter attached to the cavity. During the blowing process, the moving cylinder 211 is turned on, and the working end of the moving cylinder 211 is retracted into the moving cylinder 211 or extended outward and moved repeatedly, which can drive the concave rack 209 to move and drive the ring gear 206 to rotate, and the ring gear 206 drives the rod frame 204 and the stabilizing rod 212 to rotate. Subsequently, the arc tube 202 and the blowing nozzle 203 on the arc tube 202 are driven to rotate to the left or right by a certain angle through the stabilizing rotating rod 212, and at the same time, the reduction motor located at one end of the screw rod 201 is started to drive the screw rod 201 to rotate. At this time, the nut seat 210 will move toward the front direction on the screw rod 201, driving the arc tube 202 and the blowing nozzle 203 to move. When the nut seat 210 moves to the extreme position, the reduction motor is reversed. At this time, the blowing nozzle 203 moves toward the back of the device, and so on and so forth, thereby increasing the effect of the blowing nozzle 203 on blowing off foreign objects in the cavity.

[0065] Embodiment 4

[0066] Based on Example 3, please refer to Figure 1 , Figure 2 , Fig.11 and Fig.12 An automatic unloading assembly is arranged on the back of the middle frame 103, and the automatic unloading assembly includes a connecting frame 401 and a plurality of preformed parts 400 located inside the connecting frame 401, a vertical frame 403 is fixedly arranged on the connecting frame 401, two groups of lower rotating wheels 408 and two groups of upper rotating wheels are rotatably arranged on the vertical frame 403, and vertical transmission belts 404 are arranged outside the lower rotating wheels 408 and the upper rotating wheels, and a mounting motor 406 is fixedly arranged on the vertical frame 403, and the mounting motor 406 can drive the vertical transmission belt 404 to rotate, and the working end of the mounting motor 406 is fixedly connected to the upper rotating wheels, and the outer sleeves of the two groups of upper rotating wheels are provided with upper transmission belts 405;

[0067] An upper frame 101 is arranged on the top of the middle frame 103, a hopper 100 is arranged on the upper frame 101, an injection pipe 102 is arranged at the bottom of the hopper 100, a perforation is opened inside the middle frame 103, and the bottom shell of the injection pipe 102 passes through the inside of the perforation and extends to the inside of the cavity.

[0068] The present invention is designed with an automatic material discharge component. When the lower template 106 rotates to be located below the connecting frame 401, the two sets of vertical transmission belts 404 rotate to drive the preformed part 400 located at the bottom of the connecting frame 401 to move downward into the cavity, and the operation of placing the preformed part 400 in the cavity is automatically completed without manual operation by personnel, thereby further reducing the workload of the operator.

[0069] During use, after the lower template 106 rotates to the position below the connecting frame 401, the upper rotating wheel on the vertical frame 403 is driven to rotate by rotating the working end of the motor 406, and then the other set of upper rotating wheels is driven to rotate by the upper transmission belt 405, and the two sets of lower rotating wheels 408 are driven to rotate by the vertical transmission belt 404, and then the preformed part 400 located on the connecting frame 401 is driven to move downward by the vertical transmission belt 404, and then the preformed part 400 located at the bottom is moved into the cavity in the lower template 106 below, completing the automatic discharge of the preformed part 400 without the need for human operation, further reducing the workload of the operator.

[0070] Embodiment 5

[0071] Based on Example 4, please refer to Figure 1-Figure 12 The present invention also discloses a molding method based on the HP-RTM process, which specifically comprises the following steps:

[0072] S1, multiple preforms 400 are placed in a connecting frame 401, and then the preforms 400 are placed into the cavity in the lower template 106 through a rotating vertical transmission belt 404, and then the resin is poured into the hopper 100;

[0073] S2, turning on the driving motor in the machine base 105 to drive the rotating assembly to rotate, thereby driving the lower template 106 to rotate, so that the lower template 106 with the preform 400 placed thereon rotates to a position below the upper template 104;

[0074] S3, start the equipment, the middle frame 103 moves downward to drive the upper template 104, the hopper 100, and the injection pipe 102 to move, then the upper template 104 is molded with the lower template 106 below, and the injection pipe 102 injects the resin into the cavity of the lower template 106;

[0075] S4, after the injection is completed and the product is cooled, the upper mold plate 104 rises and opens, and then the lower mold plate 106 rotates, driving the product molded with the resin to rotate to the outside, and then the lower mold plate 106 flips downward, and the product in the cavity falls off, and at the same time, some foreign matter attached to the cavity is blown away by the blowing nozzle 203 on the purge part, and then the lower mold plate 106 flips upward and returns to the original position;

[0076] S5. Check product quality through visual inspection and inspection equipment;

[0077] S6. Trim the excess parts and burrs on the product by cutting equipment;

[0078] S7, packing and delivery.

[0079] The above embodiments are only used to illustrate the technical method of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical method of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the present invention.

Claims

1. A molding device based on HP-RTM process, comprising a machine base (105), a mold body and a middle frame (103), wherein the mold body comprises an upper mold plate (104) and a lower mold plate (106), wherein a cavity is provided inside the lower mold plate (106) for molding a product, wherein: Also includes: A turning assembly, arranged on the top of the machine base (105), for driving the lower template (106) to turn over; The rotating assembly is arranged on the top of the machine base (105) and is used to drive the lower template (106) to rotate.

2. The molding equipment based on HP-RTM process according to claim 1, characterized in that: The rotating assembly comprises a rotating ring (300) and a rotating plate (301), and a plurality of connecting plates (305) are fixedly arranged between the rotating plate (301) and the rotating ring (300); A plurality of sets of fixing frames (316) are fixedly arranged between the rotating plate (301) and the rotating ring (300), a driving motor is fixedly arranged inside the machine base (105), a rotating column (306) is fixedly arranged between the working end of the driving motor and the bottom of the rotating plate (301), and an ejection cylinder (308) is arranged inside the lower template (106).

3. The molding equipment based on HP-RTM process according to claim 2, characterized in that: An upper rotating joint (302) is arranged on the top of the rotating plate (301), a gas supply pipe (314) is fixedly arranged on the top of the upper rotating joint (302), an inner rotating shaft (322) is arranged between one end (316) of the fixing frame and the rotating plate (301), and an outer rotating shaft (317) is arranged between the other end of the fixing frame (316) and the rotating ring (300).

4. The molding equipment based on HP-RTM process according to claim 3, characterized in that: A plurality of sets of hoses are fixedly provided on the outside of the vacuum lower ring tube (307), and the ends of the hoses pass through the interior of the rotating ring (300), the outer rotating shaft (317), the fixing frame (316) and the lower template 1 (06) and extend to the interior of the cavity.

5. The molding equipment based on HP-RTM process according to claim 4, characterized in that: The turning assembly comprises a plurality of fixed motors (310) fixed on the top of the rotating ring (300) and a plurality of limit cylinders (321) fixed on the top of the rotating plate (301); A first gear (313) is fixedly disposed on the working end of the fixed motor (310), and a second gear (318) is fixedly sleeved on the outside of the outer rotating shaft (317).

6. The molding equipment based on HP-RTM process according to claim 5, characterized in that: A limiting plate (319) is fixedly sleeved on the outside of the inner rotating shaft (322), a limiting hole (323) is provided on the surface of the limiting plate (319), and the working end of the limiting cylinder (321) can be inserted into the inside of the limiting hole (323); A conductive slip ring (309) is arranged outside the rotating column (306), and a circuit (312) is fixedly arranged on the top of the rotating plate (301).

7. The molding equipment based on HP-RTM process according to claim 1, characterized in that: A purge component is provided on one side of the machine base (105), the purge component comprising an arc-shaped tube (202) and a screw rod (201), a plurality of groups of air blowing nozzles (203) are fixedly provided on the top of the arc-shaped tube (202), a nut seat (210) is provided on the outside of the screw rod (201), and two groups of mounting bearings (205) and a limit plate (208) are fixedly provided on the surface of the nut seat (210); A rod frame (204) and a stabilizing rotating rod (212) are arranged inside the mounting bearing (205); one end of each of the rod frame (204) and the stabilizing rotating rod (212) is sleeved and fixed with a ring gear (206); the outside of the ring gear (206) is meshed with a concave rack (209); a side frame is fixedly arranged on the nut seat (210); and a moving cylinder (211) is fixedly arranged on the top of the side frame.

8. The molding equipment based on HP-RTM process according to claim 1, characterized in that: An automatic material discharge assembly is arranged on the back of the middle frame (103), and the automatic material discharge assembly comprises a connecting frame (401) and a plurality of groups of preformed parts (400) located inside the connecting frame (401); a vertical frame (403) is fixedly arranged on the connecting frame (401); two groups of lower rotating wheels (408) and two groups of upper rotating wheels are rotatably arranged on the vertical frame (403); and vertical transmission belts (404) are arranged outside the lower rotating wheels (408) and the upper rotating wheels; A mounting motor (406) is fixedly arranged on the vertical frame (403), and a working end of the mounting motor (406) is fixedly connected to the upper rotating wheel. The outer parts of the two groups of upper rotating wheels are covered with upper transmission belts (405).

9. The molding equipment based on HP-RTM process according to claim 1, characterized in that: An upper frame (101) is arranged on the top of the middle frame (103), a hopper (100) is arranged on the upper frame (101), and a material injection pipe (102) is arranged at the bottom of the hopper (100).

10. A molding method of a molding device based on HP-RTM process according to any one of claims 1 to 9, characterized in that: The specific steps include: S1, stacking a plurality of preforms (400) in a connecting frame (401), then placing the preforms (400) into a cavity in a lower mold plate (106) via a rotating vertical transmission belt (404), and then pouring resin into a hopper (100); S2, turning on the driving motor in the machine base (105) to drive the lower template (106) to rotate, so that the lower template (106) on which the preform (400) is placed rotates to a position below the upper template (104); S3, the equipment is turned on, the middle frame (103) moves downward to drive the upper mold plate (104), the hopper (100), and the injection pipe (102) to move, and then the upper mold plate (104) is molded with the lower mold plate (106) below, and the injection pipe (102) injects the resin into the cavity of the lower mold plate (106); S4, after the injection is completed and the product is cooled, the upper mold plate (104) rises and opens, and then the lower mold plate (106) rotates, driving the product molded with the resin to rotate to the outside, and then the lower mold plate (106) turns downward, and the product in the cavity falls out to complete the material removal; S5. Check product quality through visual inspection and inspection equipment; S6. Trim the excess parts and burrs on the product by cutting equipment; S7, packing and delivery.

Images