Injection molding device with rapid cooling function for pleasure boat

Abstract

The invention discloses an injection molding device with a rapid cooling function for an amusement ship, and relates to the technical field of injection molding device.The injection molding device comprises a base, side sliding plates, a case, a mold mechanism, an injection molding mechanism and a mold closing mechanism, the mold mechanism comprises a front plate, a rear plate, the injection molding mechanism and a regulation and control mechanism, and the injection molding mechanism comprises a stretching air cylinder and a sliding table; the mold closing mechanism comprises a front mold plate, a rear mold plate, a hydraulic cylinder and a case, the front mold plate and the hydraulic cylinder are fixedly connected with the base, the front mold plate is fixedly connected with the front plate and the stretching air cylinder, the output end of the stretching air cylinder is fixedly connected with the sliding table, the side sliding plate and the sliding table are slidably connected with the base, and the rear plate is fixedly connected with the rear mold plate. The injection molding mechanism, the regulation and control mechanism, the stretching air cylinder and the hydraulic cylinder are all connected with the machine box through electric signals. Waste plastic is subjected to injection molding to form a plastic part for an amusement ship, the temperatures of different positions of the injection molded part are monitored in real time, the cooling efficiency is actively compensated, warping and surface sink marks are avoided, and cooling molding and automatic demolding are achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of injection molding equipment, and specifically to an injection molding device for a pleasure boat with a rapid cooling function. Background Art

[0002] As an indispensable core equipment in modern manufacturing, the plastic shell injection molding equipment is based on the polymer material forming theory. By melting and plasticizing thermoplastic or thermosetting plastic raw materials under high temperature and high pressure conditions, injecting them into the mold cavity through the injection system, and then cooling and solidifying to achieve molding. With scientific selection, process optimization and standardized operation, this equipment can manufacture plastic shell products that meet the requirements of precision, light weight and economy with high production efficiency, and is widely used in many industrial fields such as electronics, automobiles, and household appliances. Currently, injection molding technology is continuously evolving in the direction of intelligence and automation to meet the needs of the transformation and upgrading of the manufacturing industry.

[0003] However, there are still technical bottlenecks in the actual application of existing injection molding equipment. Due to the diversity of the specifications and shapes of injection molded parts, traditional fixed cooling water channels are prone to cooling blind spots, resulting in local temperature gradient imbalance, and the mold opening cost of independently designed cooling water channels is too high; at the same time, the wall thickness of injection molded parts varies significantly, and conventional cooling and holding pressure processes are difficult to achieve uniform heat dissipation, often causing warping and deformation of the products; in addition, insufficient local cooling will also cause surface shrinkage marks, seriously affecting the appearance quality and dimensional accuracy of the products, and becoming a key factor restricting the improvement of product quality. Summary of the Invention

[0004] The purpose of the present invention is to provide an injection molding device for a pleasure boat with a rapid cooling function to solve the problems in the prior art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: An injection molding device for a pleasure boat with a rapid cooling function includes a base, side slides, a chassis, a mold mechanism, an injection mechanism and a mold clamping mechanism. The mold mechanism includes a front plate, a rear plate, an injection mold mechanism and a regulation mechanism. The injection mechanism includes a stretching cylinder and a sliding table. The mold clamping mechanism includes a front template, a rear template and a hydraulic cylinder. The chassis, the front template and the hydraulic cylinder are all fixedly connected to the base. The front template is fixedly connected to the front plate and the stretching cylinder. The output end of the stretching cylinder is fixedly connected to the sliding table. The side slides and the sliding table are both slidably connected to the base. The rear plate is fixedly connected to the rear template. The injection mold mechanism, the regulation mechanism, the stretching cylinder and the hydraulic cylinder are all electrically connected to the chassis by electrical signals.

[0006] The present invention relates to an injection molding device for recycling plastic waste to prepare plastic parts for amusement boats. Prepared plastic particles are heated to a molten state in an injection molding mechanism. A clamping mechanism fixes a mold mechanism to withstand high pressure to ensure that the mold does not deform when closed. The slide table is driven to move on the base by stretching the output end of the cylinder. The injection molding mechanism injects molten plastic into the mold mechanism. The mold cavity inside the mold mechanism is filled with molten plastic. Pressure-maintaining cooling cools and molds the molten plastic. The temperature of the injection molded part is monitored in real time, and the internal cooling path is adjusted to make it fit the product shape to avoid the existence of a cooling blind spot. The injection molded part is cooled in a targeted manner in the wall thickness area to balance the overall cooling rate to avoid uneven cooling of the injection molded part resulting in warping and surface shrinkage marks. The product is automatically ejected and demolded after cooling.

[0007] Furthermore, the mold mechanism also includes a frame shell, a cooling mechanism, an ejection mechanism and a pulse valve. The front plate is provided with an injection hole. The injection molding mechanism includes a shunt pipe and a barrel mold shell. The regulating mechanism includes a servo cylinder. The frame shell is provided with a convex magnetic block and a medium channel. The frame shell and the servo cylinder are fixedly connected to the front plate. The shunt pipe is fixedly connected to the injection hole. The cooling mechanism is rotatably connected to the barrel mold shell. The regulating mechanism is transmission-connected to the cooling mechanism. The ejection mechanism includes a lifting cylinder and a rear orifice plate. The lifting cylinder is fixedly connected to the rear plate. A concave magnetic block is provided on the rear orifice plate. The convex magnetic block and the concave magnetic block are connected by magnetic force. The pulse valve is fixedly connected to the medium channel and the rear orifice plate.

[0008] Furthermore, the clamping mechanism pushes the rear plate to move toward the front plate, so that the convex magnetic block and the concave magnetic block are adsorbed by magnetic force to fix the barrel mold shell and the rear orifice plate. The injection molding mechanism injects the molten plastic between the barrel mold shell and the rear orifice plate through the injection hole and the diversion pipe. The external liquid pump injects the cooling medium into the cooling mechanism and the rear orifice plate in a pulsed manner through the pulse valve and the medium channel. The cooling medium circulates in the cooling mechanism, and the molten plastic is cooled and formed by pressure-maintaining cooling. The temperature of different positions of the injection molded part is monitored in real time by the injection molding mechanism, and the electrical signal is fed back to the chassis. The chassis feeds back the control signal to the regulating mechanism, and the regulating mechanism outputs different torques to the cooling mechanism, adjusts the internal cooling path to make it fit the product shape, avoids the existence of cooling blind spots, and performs targeted cooling on the thick wall area of ​​the injection molded part to balance the overall cooling rate to avoid uneven cooling of the injection molded part, resulting in warping and surface shrinkage. After the product is cooled, the ejection mechanism automatically ejects the product.

[0009] Furthermore, the injection molding mechanism also includes a micro-thermocouple, the shunt pipe is fixedly connected to the barrel mold shell, the barrel mold shell is provided with a channel, and the channels and micro-thermocouples are provided in several groups. The several groups of channels and micro-thermocouples are evenly distributed along the circumference of the barrel mold shell, and the micro-thermocouples are in contact with the channels.

[0010] The injection molding mechanism injects the molten plastic between the barrel mold shell and the rear orifice plate through the injection hole and the diverter pipe. Several groups of micro thermocouples evenly distributed in the holes along the circumference of the barrel mold shell monitor the temperature of different positions of the injection molded part in real time and feed back electrical signals to the chassis.

[0011] Furthermore, the regulating mechanism further includes a servo motor and a gear rod. The servo motor is fixedly connected to the output end of the servo cylinder, and the gear rod is fixedly connected to the output end of the servo motor. The servo cylinder, the servo motor, and the micro thermocouple are all connected to the chassis through electrical signals. The cooling mechanism includes a first ring body and a second ring body. A first ring gear pair is provided on the first ring body, and a second ring gear pair is provided on the second ring body. Both the first ring gear pair and the second ring gear pair are meshed with the tooth surface of the gear rod. Both the first ring body and the second ring body are rotatably connected to the barrel mold shell.

[0012] The chassis feeds back a control signal to the servo motor and the servo cylinder. The output end of the servo cylinder drives the servo motor to displace along the axis of its output end, causing the gear rod to displace along the axis of the output end of the servo motor. The gear rod is respectively meshed with the tooth surfaces of the first ring gear pair and the second ring gear pair. The servo motor respectively outputs a fixed-axis torque to the first ring gear pair and the second ring gear pair, causing both the first ring body and the second ring body to rotate on the barrel mold shell, changing the relative positions of the cooling circuits inside the first ring body and the second ring body and the injection molded part, making the cooling path conform to the product shape, avoiding the existence of cooling blind spots, specifically cooling the wall thickness area of the injection molded part, balancing the overall cooling rate, and avoiding warping and surface shrinkage marks caused by uneven cooling of the injection molded part.

[0013] Furthermore, a side channel, a first cooling channel, and a top opening are further provided on the first ring body, and a second cooling channel and a communication port are further provided on the second ring body. The side channel is in contact with the medium channel, the first cooling channel is in contact with both the side channel and the top opening, and the top opening is in contact with the communication port. There are several groups of the second ring body, the first cooling channel, and the second cooling channel. Several groups of the second ring body, the first cooling channel, and the second cooling channel are linearly distributed uniformly along the axis of the first ring body. The cross-sections of the first cooling channel and the second cooling channel perpendicular to the axis of the first ring body are both cam-shaped.

[0014] External cooling medium enters the first cooling channel through the pulse valve, the medium channel, and the side channel. The adjacent first cooling channels are connected for the cooling medium to circulate. The cooling medium in the first ring body flows into the second cooling channel through the top opening and the communication port for circulation. The servo motor respectively outputs a fixed-axis torque to the first ring gear pair and the second ring gear pair, causing both the first ring body and the second ring body to rotate on the barrel mold shell. Several groups of the first cooling channel and the second cooling channel are linearly distributed uniformly along the axis of the first ring body. Through a multi-layer waterway design, the heat exchange efficiency between the thick wall area or the heat concentration area and the cooling medium in the cooling waterway is improved. The cross-sections of the first cooling channel and the second cooling channel are cam-shaped, that is, by rotating the first cooling channel and the second cooling channel, the distance between the cam channels in the first cooling channel and the second cooling channel and the injection molded part can be adjusted, thereby adjusting the cooling rate at different positions of the injection molded part. The micro thermocouple monitors the temperature at different positions of the injection molded part in real time and adjusts the distance between the cam channels in the first cooling channel and the second cooling channel and the injection molded part in real time, avoiding warping and surface shrinkage marks caused by uneven cooling by balancing the heat dissipation of the thick and thin areas.

[0015] Furthermore, the ejection mechanism further includes a compression spring, a lifting plate, and ejector pins. The compression spring is fixedly connected to both the output end of the lifting cylinder and the lifting plate. The ejector pins are fixedly connected to the output end of the lifting cylinder. The lifting plate is fixedly connected to both the rear plate and the rear hole plate.

[0016] After the product is cooled, the output end of the lifting cylinder displaces. The output end of the lifting cylinder squeezes the compression spring against the lifting plate, and the output end of the lifting cylinder pushes the ejector pins. The ejector pins displace through the through holes in the lifting plate and the rear hole plate to eject the injection molded part formed in the cylindrical mold shell and the rear hole plate.

[0017] Furthermore, the injection molding mechanism further includes a heater, a screw barrel, and a driving motor. The heater is fixedly connected to the barrel. The screw barrel and the driving motor are both fixedly connected to the sliding table. The barrel is fixedly connected to the screw barrel. The output end of the driving motor is fixedly connected to the screw barrel.

[0018] The heater heats the plastic particles in the barrel to a molten state. The output end of the stretching cylinder drives the sliding table to displace on the base. The screw barrel contacts the injection hole. The driving motor outputs a fixed-axis torque to the screw barrel, and conveys the melt through the rotation and axial movement of the screw to inject the molten plastic into the mold.

[0019] Furthermore, the mold clamping mechanism further includes a slide bar and a hinge bracket. The slide bar is fixedly connected to the front template. The rear template is slidably connected to the slide bar. The hinge bracket is fixedly connected to both the output end of the hydraulic cylinder and the rear template.

[0020] The output end of the hydraulic cylinder pushes the rear template through the hinge bracket. The rear template displaces forward along the slide bar towards the front template. Through the relative displacement of the front template and the rear template, the cylindrical mold shell and the rear hole plate are relatively fixed for pressure holding.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention designs a cooling mechanism. Through a number of micro-thermocouples evenly distributed along the circumference of the barrel mold shell in the holes, the temperature of different positions of the injection molded part is monitored in real time, and the electrical signal is fed back to the chassis. The external cooling medium enters the first cooling channel through the pulse valve, the medium channel, and the side channel. The adjacent first cooling channels are connected to allow the cooling medium to circulate. The cooling medium in the first ring body flows into the second cooling channel through the top opening and the communication port for circulation. The servo motor outputs a fixed-axis torque to the first ring gear pair and the second ring gear pair respectively, so that the first ring body and the second ring body both rotate on the barrel mold shell. A number of groups of first cooling channels and second cooling channels are linearly evenly distributed along the axis of the first ring body. Through the multi-layer waterway design, the heat exchange efficiency between the thick-walled area or the heat-concentrated area and the cooling medium in the cooling waterway is improved. The cross-section of the first cooling channel and the second cooling channel is cam-shaped, that is, by rotating the first ring body and the second ring body, the distance between the cam channels in the first cooling channel and the second cooling channel and the injection molded part can be adjusted, and then the cooling rate of different positions of the injection molded part can be adjusted. By making the heat dissipation balance between the thick and thin areas, warping and surface shrinkage marks caused by uneven cooling are avoided; The present invention designs an ejection mechanism. After the product is cooled, the output end of the lifting cylinder displaces, the output end of the lifting cylinder squeezes the compression spring with the lifting plate, the output end of the lifting cylinder pushes the ejector pin, and the ejector pin displaces through the through holes on the lifting plate and the rear hole plate to eject the injection molded part formed in the barrel mold shell and the rear hole plate, realizing automatic demolding; The present invention melts waste plastics and injects them into plastic parts for pleasure boats. By monitoring the temperature of different positions of the injection molded part in real time and actively compensating for the cooling efficiency of different positions of the injection molded part, warping and surface shrinkage marks caused by uneven cooling are avoided, and automatic demolding is realized after cooling and forming. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is the overall structural schematic diagram of the present invention;

[0023] Figure 2 is the structural schematic diagram of the mold mechanism of the present invention;

[0024] Figure 3 is the structural schematic diagram of the injection mold mechanism of the present invention;

[0025] Figure 4 is the structural schematic diagram of the regulation mechanism of the present invention;

[0026] Figure 5 is Figure 4 the enlarged schematic diagram of the partial A;

[0027] Figure 6 is Figure 4 the enlarged schematic diagram of the partial B;

[0028] Figure 7 is the partial cross-sectional view of the cooling mechanism of the present invention;

[0029] Figure 8Schematic diagram of the ejection mechanism of the present invention;

[0030] Figure 9 Schematic diagram of the injection molding mechanism of the present invention;

[0031] Figure 10 Schematic diagram of the mold clamping mechanism of the present invention.

[0032] In the figure: 1, base; 2, side sliding plate; 3, chassis; 4, mold mechanism; 41, front plate; 411, injection hole; 42, frame shell; 421, convex magnetic block; 422, medium channel; 43, rear plate; 44, injection mold mechanism; 441, shunt pipe; 442, barrel mold shell; 4421, hole channel; 443, micro thermocouple; 45, control mechanism; 451, servo cylinder; 452, servo motor; 453, gear rod; 46, cooling mechanism; 461, first ring body; 4611, first ring gear pair; 4612, side channel; 4613, first cooling channel; 4614, top opening; 462, second ring body; 4621, second ring gear pair; 4622, second cooling channel; 4623, communication port; 47, ejection mechanism; 471, lifting cylinder; 472, compression spring; 473, lifting plate; 474, ejector pin; 475, rear hole plate; 4751, concave magnetic block; 48, pulse valve; 5, injection molding mechanism; 51, barrel; 52, heater; 53, screw barrel; 54, drive motor; 55, stretching cylinder; 56, sliding table; 6, mold clamping mechanism; 61, front template; 62, rear template; 63, sliding rod; 64, hydraulic cylinder; 65, articulated frame. Detailed implementation manners

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0034] Such as Figure 1 , Figure 2 , Figure 8As shown in the figure, the technical solution of an injection molding device for a pleasure boat with a rapid cooling function provided by the present invention includes a base 1, side sliding plates 2, a chassis 3, a mold mechanism 4, an injection molding mechanism 5, and a mold clamping mechanism 6. The mold mechanism 4 includes a front plate 41, a rear plate 43, an injection mold mechanism 44, and a regulation mechanism 45. The injection molding mechanism 5 includes a stretching cylinder 55 and a sliding table 56. The mold clamping mechanism 6 includes a front template 61, a rear template 62, and a hydraulic cylinder 64. The chassis 3, the front template 61, and the hydraulic cylinder 64 are all fixedly connected to the base 1. The front template 61 is fixedly connected to the front plate 41 and the stretching cylinder 55. The output end of the stretching cylinder 55 is fixedly connected to the sliding table 56. The side sliding plates 2 and the sliding table 56 are both slidably connected to the base 1. The rear plate 43 is fixedly connected to the rear template 62. The injection mold mechanism 44, the regulation mechanism 45, the stretching cylinder 55, and the hydraulic cylinder 64 are all electrically connected to the chassis 3 by electrical signals.

[0035] The present invention is an injection molding device for recycling plastic waste into plastic parts for pleasure boats. The prepared plastic pellets are heated to a molten state in the injection molding mechanism 5. The mold clamping mechanism 6 fixes the mold mechanism 4 to withstand high pressure to ensure that the mold does not deform when closed. The output end of the stretching cylinder 55 drives the sliding table 56 to displace on the base 1. The injection molding mechanism 5 injects the molten plastic into the mold mechanism 4. The internal mold cavity of the mold mechanism 4 is filled with the molten plastic, and the molten plastic is cooled and formed by pressure holding and cooling. The temperature of the injection molded part is monitored in real time, and the internal cooling path is adjusted to fit the product shape to avoid cooling blind spots. The wall thickness area of the injection molded part is cooled specifically to balance the overall cooling rate and avoid warping and surface shrinkage marks caused by uneven cooling of the injection molded part. After the product is cooled, it is automatically ejected and demolded.

[0036] As Figure 2 、 Figure 3 、 Figure 4 shown, the mold mechanism 4 further includes a frame shell 42, a cooling mechanism 46, an ejection mechanism 47, and a pulse valve 48. An injection hole 411 is provided on the front plate 41. The injection mold mechanism 44 includes a shunt pipe 441 and a barrel mold shell 442. The regulation mechanism 45 includes a servo cylinder 451. A convex magnetic block 421 and a medium channel 422 are provided on the frame shell 42. The frame shell 42 and the servo cylinder 451 are both fixedly connected to the front plate 41. The shunt pipe 441 is fixedly connected to the injection hole 411. The cooling mechanism 46 is rotatably connected to the barrel mold shell 442. The regulation mechanism 45 is in transmission connection with the cooling mechanism 46. The ejection mechanism 47 includes a jacking cylinder 471 and a rear hole plate 475. The jacking cylinder 471 is fixedly connected to the rear plate 43. A concave magnetic block 4751 is provided on the rear hole plate 475. The convex magnetic block 421 and the concave magnetic block 4751 are magnetically connected. The pulse valve 48 is fixedly connected to the medium channel 422 and the rear hole plate 475.

[0037] Before injection molding, the mold clamping mechanism 6 pushes the rear plate 43 to displace forward towards the front plate 41, enabling the convex magnetic block 421 and the concave magnetic block 4751 to adsorb through magnetic force, fixing the cylindrical mold shell 442 and the rear hole plate 475. The injection molding mechanism 5 injects molten plastic between the cylindrical mold shell 442 and the rear hole plate 475 through the injection hole 411 and the shunt pipe 441. The external liquid pump injects cooling medium into the cooling mechanism 46 and the rear hole plate 475 in a pulsed manner through the pulse valve 48 and the medium channel 422. Through the circulation of the cooling medium in the cooling mechanism 46, pressure holding and cooling are carried out to cool the molten plastic into a molded form. The injection molding mechanism 44 monitors the temperatures at different positions of the injection molded part in real time, feeds back electrical signals to the chassis 3, the chassis 3 feeds back control signals to the regulation mechanism 45, and the regulation mechanism 45 outputs different torques to the cooling mechanism 46 to adjust the internal cooling path to fit the product shape, avoiding the existence of cooling blind spots, specifically cooling the wall thickness area of the injection molded part, balancing the overall cooling rate, and preventing warping and surface shrinkage marks caused by uneven cooling of the injection molded part. After the product is cooled, the ejection mechanism 47 automatically ejects and demolds it.

[0038] As Figure 3 、 Figure 4 shown, the injection molding mechanism 44 further includes a micro thermocouple 443. The shunt pipe 441 is fixedly connected to the cylindrical mold shell 442. The cylindrical mold shell 442 is provided with a hole channel 4421. There are several groups of the hole channel 4421 and the micro thermocouple 443, and several groups of the hole channel 4421 and the micro thermocouple 443 are evenly distributed along the circumference of the cylindrical mold shell 442. The micro thermocouple 443 is in contact with the hole channel 4421.

[0039] The injection molding mechanism 5 injects molten plastic between the cylindrical mold shell 442 and the rear hole plate 475 through the injection hole 411 and the shunt pipe 441. The temperatures at different positions of the injection molded part are monitored in real time by several groups of micro thermocouples 443 evenly distributed along the circumference of the cylindrical mold shell 442 in the hole channel 4421, and electrical signals are fed back to the chassis 3.

[0040] As Figure 3 、 Figure 4 、 Figure 5 shown, the regulation mechanism 45 further includes a servo motor 452 and a gear rod 453. The servo motor 452 is fixedly connected to the output end of the servo cylinder 451, the gear rod 453 is fixedly connected to the output end of the servo motor 452. The servo cylinder 451, the servo motor 452, and the micro thermocouple 443 are all connected to the chassis 3 through electrical signals. The cooling mechanism 46 includes a first ring body 461 and a second ring body 462. The first ring body 461 is provided with a first ring gear pair 4611, the second ring body 462 is provided with a second ring gear pair 4621. The first ring gear pair 4611 and the second ring gear pair 4621 are both meshed with the tooth surface of the gear rod 453. The first ring body 461 and the second ring body 462 are both rotatably connected to the cylindrical mold shell 442.

[0041] The chassis 3 feeds back a control signal to the servo motor 452 and the servo cylinder 451. The output end of the servo cylinder 451 drives the servo motor 452 to displace along the axis of its output end, so that the gear rod 453 displaces along the axis of the output end of the servo motor 452. The gear rod 453 is respectively meshed with the tooth surfaces of the first ring gear pair 4611 and the second ring gear pair 4621. The servo motor 452 respectively outputs a fixed-axis torque to the first ring gear pair 4611 and the second ring gear pair 4621, so that both the first ring body 461 and the second ring body 462 rotate on the barrel mold shell 442, changing the relative positions of the cooling circuits inside the first ring body 461 and the second ring body 462 and the injection molded part, making the cooling path conform to the product shape, avoiding the existence of cooling blind spots, cooling the wall thickness area of the injection molded part specifically, balancing the overall cooling rate, and avoiding warping and surface sink marks caused by uneven cooling of the injection molded part.

[0042] As Figure 5 , Figure 6 , Figure 7 shown, the first ring body 461 is also provided with a side channel 4612, a first cooling channel 4613 and a top opening 4614, and the second ring body 462 is also provided with a second cooling channel 4622 and a communication port 4623. The side channel 4612 is in contact with the medium channel 422, the first cooling channel 4613 is in contact with both the side channel 4612 and the top opening 4614, and the top opening 4614 is in contact with the communication port 4623. There are several groups of the second ring body 462, the first cooling channel 4613 and the second cooling channel 4622. The several groups of the second ring body 462, the first cooling channel 4613 and the second cooling channel 4622 are linearly and evenly distributed along the axis of the first ring body 461. The cross sections of the first cooling channel 4613 and the second cooling channel 4622 perpendicular to the axis of the first ring body 461 are both cam-shaped.

[0043] The external cooling medium enters the first cooling channel 4613 through the pulse valve 48, the medium channel 422, and the side channel 4612. The adjacent first cooling channels 4613 are connected to allow the cooling medium to circulate. The cooling medium in the first ring body 461 flows into the second cooling channel 4622 through the top opening 4614 and the communication port 4623 for circulation. The servo motor 452 outputs a fixed-axis torque to the first ring gear pair 4611 and the second ring gear pair 4621 respectively, causing the first ring body 461 and the second ring body 462 to rotate on the barrel die shell 442. A number of groups of the first cooling channels 4613 and the second cooling channels 4622 are linearly distributed uniformly along the axis of the first ring body 461. Through the multi-layer waterway design, the heat exchange efficiency between the thick-wall area or the heat-concentrated area and the cooling medium in the cooling waterway is improved. The cross-sections of the first cooling channel 4613 and the second cooling channel 4622 are cam-shaped, that is, by rotating the first cooling channel 4613 and the second cooling channel 4622, the distance between the cam channels in the first cooling channel 4613 and the second cooling channel 4622 and the injection molded part can be adjusted, and then the cooling rate at different positions of the injection molded part can be adjusted. The micro thermocouple 443 monitors the temperature at different positions of the injection molded part in real time and adjusts the distance between the cam channels of the first cooling channel 4613 and the second cooling channel 4622 in real time, so as to avoid warping and surface shrinkage caused by uneven cooling by making the heat dissipation of the thick and thin areas balanced.

[0044] As Figure 8 shown, the ejection mechanism 47 further includes a compression spring 472, a lifting plate 473, and an ejector pin 474. The compression spring 472 is fixedly connected to the output end of the lifting cylinder 471 and the lifting plate 473. The ejector pin 474 is fixedly connected to the output end of the lifting cylinder 471. The lifting plate 473 is fixedly connected to the rear plate 43 and the rear hole plate 475.

[0045] After the product is cooled, the output end of the lifting cylinder 471 displaces. The output end of the lifting cylinder 471 squeezes the compression spring 472 with the lifting plate 473. The output end of the lifting cylinder 471 pushes the ejector pin 474. The ejector pin 474 displaces through the through holes on the lifting plate 473 and the rear hole plate 475, and ejects the injection molded part formed in the barrel die shell 442 and the rear hole plate 475.

[0046] As Figure 9 shown, the injection molding mechanism 5 further includes a heater 52, a screw barrel 53, and a drive motor 54. The heater 52 is fixedly connected to the barrel 51. The screw barrel 53 and the drive motor 54 are both fixedly connected to the slide 56. The barrel 51 is fixedly connected to the screw barrel 53. The output end of the drive motor 54 is fixedly connected to the screw barrel 53.

[0047] The heater 52 heats the plastic particles in the barrel 51 to a molten state. The output end of the stretching cylinder 55 drives the slide table 56 to displace on the base 1. The screw barrel 53 contacts the injection hole 411, and the driving motor 54 outputs a fixed-axis torque to the screw barrel 53. The melt is conveyed through the rotation and axial movement of the screw, and the molten plastic is injected into the mold.

[0048] As Figure 10 shown, the mold clamping mechanism 6 further includes a slide bar 63 and a hinge frame 65. The slide bar 63 is fixedly connected to the front template 61, the rear template 62 is slidably connected to the slide bar 63, and the hinge frame 65 is fixedly connected to the output end of the hydraulic cylinder 64 and the rear template 62.

[0049] The output end of the hydraulic cylinder 64 pushes the rear template 62 through the hinge frame 65. The rear template 62 displaces forward along the slide bar 63 towards the front template 61. Through the relative displacement of the front template 61 and the rear template 62, the cylinder mold shell 442 and the rear orifice plate 475 are relatively fixed for pressure holding.

[0050] The working principle of the present invention: The prepared plastic particles are heated to a molten state in the injection mechanism 5. The mold clamping mechanism 6 fixes the mold to withstand high pressure to ensure that the mold does not deform when closed. The injection mechanism 5 injects the molten plastic into the mold mechanism 4. Before injection, the convex magnet block 421 and the concave magnet block 4751 are magnetically adsorbed to fix the cylinder mold shell 442 and the rear orifice plate 475. The injection mechanism 5 injects the molten plastic between the cylinder mold shell 442 and the rear orifice plate 475 through the injection hole 411 and the shunt pipe 441. The external liquid pump injects the cooling medium pulsatively through the pulse valve 48. The micro thermocouples 443 evenly distributed along the circumference of the cylinder mold shell 442 in the channels 4421 monitor the temperatures at different positions of the injection molded part in real time, and feedback the electrical signals to the chassis 3. The external cooling medium enters the first cooling channel 4613 through the pulse valve 48, the medium channel 422, and the side channel 4612. The adjacent first cooling channels 4613 are connected to allow the cooling medium to circulate. The cooling medium in the first ring body 461 flows into the second cooling channel 4622 through the top opening 4614 and the communication port 4623 for circulation. The servo motor 452 outputs a fixed-axis torque to the first ring gear pair 4611 and the second ring gear pair 4621 respectively, so that the first ring body 461 and the second ring body 462 both rotate on the cylinder mold shell 442. A number of groups of the first cooling channels 4613 and the second cooling channels 4622 are linearly evenly distributed along the axis of the first ring body 461. Through the multi-layer waterway design, the heat exchange efficiency between the thick-walled area or the heat concentration area and the cooling medium in the cooling waterway is improved. The cross-sections of the first cooling channel 4613 and the second cooling channel 4622 are cam-shaped, that is, by rotating the first ring body 461 and the second ring body 462, the distance between the cam channels in the first cooling channel 4613 and the second cooling channel 4622 and the injection molded part can be adjusted, thereby adjusting the cooling rate at different positions of the injection molded part. By balancing the heat dissipation in the thick and thin areas, warping and surface shrinkage caused by uneven cooling are avoided. After the product is cooled, the ejection mechanism 47 automatically ejects and demolds.

[0051] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, in any aspect, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention. Any reference signs in the claims should not be construed as limiting the claims involved.

Claims

1. An injection molding device for a pleasure boat with a rapid cooling function, characterized in that: The injection molding device includes a base (1), a side slide plate (2), a chassis (3), a mold mechanism (4), an injection mechanism (5), and a mold clamping mechanism (6). The mold mechanism (4) includes a front plate (41), a rear plate (43), an injection mold mechanism (44), and a regulation mechanism (45). The injection mechanism (5) includes a stretching cylinder (55) and a slide table (56). The mold clamping mechanism (6) includes a front template (61), a rear template (62), and a hydraulic cylinder (64). The chassis (3), the front template (61), and the hydraulic cylinder (64) are all fixedly connected to the base (1). The front template (61) is fixedly connected to the front plate (41) and the stretching cylinder (55). The output end of the stretching cylinder (55) is fixedly connected to the slide table (56). The side slide plate (2) and the slide table (56) are both slidably connected to the base (1). The rear plate (43) is fixedly connected to the rear template (62). The injection mold mechanism (44), the regulation mechanism (45), the stretching cylinder (55), and the hydraulic cylinder (64) are all electrically connected to the chassis (3).

2. The injection molding device for a pleasure boat with a rapid cooling function according to claim 1, characterized in that: The mold mechanism (4) further includes a frame shell (42), a cooling mechanism (46), an ejection mechanism (47), and a pulse valve (48). An injection hole (411) is provided on the front plate (41). The injection mold mechanism (44) includes a shunt pipe (441) and a barrel mold shell (442). The regulation mechanism (45) includes a servo cylinder (451). A convex magnetic block (421) and a medium channel (422) are provided on the frame shell (42). The frame shell (42) and the servo cylinder (451) are both fixedly connected to the front plate (41). The shunt pipe (441) is fixedly connected to the injection hole (411). The cooling mechanism (46) is rotatably connected to the barrel mold shell (442). The regulation mechanism (45) is drivingly connected to the cooling mechanism (46). The ejection mechanism (47) includes a jacking cylinder (471) and a rear hole plate (475). The jacking cylinder (471) is fixedly connected to the rear plate (43). A concave magnetic block (4751) is provided on the rear hole plate (475). The convex magnetic block (421) is magnetically connected to the concave magnetic block (4751). The pulse valve (48) is fixedly connected to the medium channel (422) and the rear hole plate (475).

3. The injection molding device for a pleasure boat with a rapid cooling function according to claim 2, characterized in that: The injection mold mechanism (44) further includes a micro thermocouple (443). The shunt pipe (441) is fixedly connected to the barrel mold shell (442). A hole channel (4421) is provided on the barrel mold shell (442). There are several groups of the hole channels (4421) and the micro thermocouples (443). Several groups of the hole channels (4421) and the micro thermocouples (443) are evenly distributed along the circumference of the barrel mold shell (442). The micro thermocouple (443) is in contact with the hole channel (4421).

4. The injection molding device for a pleasure boat with a rapid cooling function according to claim 3, characterized in that: The regulating mechanism (45) further includes a servo motor (452) and a gear rod (453). The servo motor (452) is fixedly connected to the output end of the servo cylinder (451), and the gear rod (453) is fixedly connected to the output end of the servo motor (452). The servo cylinder (451), the servo motor (452), and the micro-thermocouple (443) are all electrically connected to the chassis (3). The cooling mechanism (46) includes a first ring body (461) and a second ring body (462). The first ring body (461) is provided with a first ring gear pair (4611), and the second ring body (462) is provided with a second ring gear pair (4621). The first ring gear pair (4611) and the second ring gear pair (4621) are both meshed with the tooth surface of the gear rod (453). The first ring body (461) and the second ring body (462) are both rotatably connected to the barrel mold shell (442).

5. The injection molding device for a pleasure boat with a fast cooling function according to claim 4, characterized in that: The first ring body (461) is further provided with a side channel (4612), a first cooling channel (4613), and a top opening (4614). The second ring body (462) is further provided with a second cooling channel (4622) and a communication port (4623). The side channel (4612) is in contact with the medium channel (422). The first cooling channel (4613) is in contact with both the side channel (4612) and the top opening (4614). The top opening (4614) is in contact with the communication port (4623). There are several groups of the second ring body (462), the first cooling channel (4613), and the second cooling channel (4622). The several groups of the second ring body (462), the first cooling channel (4613), and the second cooling channel (4622) are linearly and evenly distributed along the axis of the first ring body (461). The cross-sections of the first cooling channel (4613) and the second cooling channel (4622) perpendicular to the axis of the first ring body (461) are both cam-shaped.

6. The injection molding device for a pleasure boat with a rapid cooling function according to claim 2, characterized in that: The ejection mechanism (47) further includes a compression spring (472), a lifting plate (473), and an ejector pin (474). The compression spring (472) is fixedly connected to both the output end of the lifting cylinder (471) and the lifting plate (473). The ejector pin (474) is fixedly connected to the output end of the lifting cylinder (471). The lifting plate (473) is fixedly connected to both the rear plate (43) and the rear hole plate (475).

7. A plastic injection device for a pleasure boat with a rapid cooling function according to claim 1, characterized in that: The injection molding mechanism (5) further includes a heater (52), a screw barrel (53), and a drive motor (54). The heater (52) is fixedly connected to the barrel (51). The screw barrel (53) and the drive motor (54) are both fixedly connected to the sliding table (56). The barrel (51) is fixedly connected to the screw barrel (53). The output end of the drive motor (54) is fixedly connected to the screw barrel (53).

8. A plastic injection device for a pleasure boat with a fast cooling function according to claim 1, characterized in that: The mold clamping mechanism (6) further includes a sliding rod (63) and a hinged frame (65). The sliding rod (63) is fixedly connected to the front template (61). The rear template (62) is slidably connected to the sliding rod (63). The hinged frame (65) is fixedly connected to both the output end of the hydraulic cylinder (64) and the rear template (62).

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