Supercritical foaming forming mold device

Abstract

The invention discloses a supercritical foaming forming mold device, and relates to the technical field of foaming forming molds, the supercritical foaming forming mold device comprises an L-shaped mounting frame, limiting rods, a first mold, an air exhaust mechanism, a pretreatment mechanism, a conveying pipe, a damping mechanism, an air cylinder, a second mold and a mounting mechanism, the periphery of the right end of the L-shaped mounting frame is fixedly connected with the limiting rods; a first mold is fixedly connected to the right end of the limiting rod, an air exhaust mechanism is fixedly connected to the top of the first mold, a pretreatment mechanism is fixedly connected to the lower portion of the back of the L-shaped mounting frame, a conveying pipe is fixedly connected to the right end of the first mold, and a damping mechanism is fixedly connected to the bottom of the conveying pipe; the first mold and the second mold are subjected to air exhaust through the piston cylinder, the phenomenon that bubbles are formed in the foaming process due to the influence of air when polymer is injected in the later period is prevented, and the product quality is improved.

Description

Technical Field

[0001] The invention relates to the technical field of foaming molding moulds, in particular to a supercritical foaming molding mould device. Background Art

[0002] The supercritical foaming molding mold device is a device used to manufacture microporous foam materials. It uses supercritical fluid to physically foam polymer materials under specific pressure and temperature. This technology can prepare foam materials with uniform pore structure, low density, high strength and good thermal insulation performance.

[0003] It is difficult to remove the air inside the existing supercritical foaming mold device after the film is closed. The air is easily affected when the polymer is injected later, and bubbles are formed during the foaming process, affecting the product quality. When some equipment is evacuating the mold, it is difficult to detect the pressure changes in the mold in real time and adjust the evacuation speed, which makes it difficult to provide data support for subsequent production and maintenance, and the practicality is relatively simple. In addition, due to environmental factors, there may be some moisture and impurities on the mold surface. It is difficult to pre-treat the mold before foaming in the existing supercritical foaming mold device, which makes it difficult for the foaming material to evenly fill the mold and form an ideal pore structure. At the same time, it is difficult to increase the mold temperature, resulting in a slow curing speed of the foaming material, which increases the time of the entire foaming process. Another problem is that: since pipes of different shapes have different flow resistance to supercritical fluid, it is difficult to change the shape of the pipe as required in the prior art, which reduces the flow efficiency of the supercritical fluid; Finally: The polymer delivery pipe of the supercritical foaming molding mold device may vibrate due to external factors during use. It is difficult to reduce the vibration of the delivery pipe with the existing technology, which increases the downtime of the mold device and reduces production efficiency. At the same time, the vibration of the delivery pipe can easily cause wear to the mold device and reduce the service life of the mold device. Summary of the invention

[0004] Therefore, in order to solve the above-mentioned shortcomings, the present invention provides a supercritical foaming molding mold device.

[0005] The present invention is implemented in this way: a supercritical foaming molding mold device is constructed, which includes an L-shaped mounting frame, the right end of the L-shaped mounting frame is fixedly connected to limiting rods all around, the right end of the limiting rod is fixedly connected to a first mold, the top of the first mold is fixedly connected to an exhaust mechanism, the back of the L-shaped mounting frame is fixedly connected to a pretreatment mechanism, the right end of the first mold is fixedly connected to a delivery pipe, the bottom of the delivery pipe is fixedly connected to a shock absorbing mechanism, the center of the right end of the L-shaped mounting frame is fixedly connected to a cylinder, the push rod at the right end of the cylinder is fixedly connected to the second mold, and the front end of the first mold is fixedly connected to a mounting mechanism, wherein the limiting rod passes through the second mold and is slidably connected to the inside thereof; The exhaust mechanism comprises a first installation box, the top of the first mold is fixedly connected to the first installation box, the rear end right side of the first installation box is fixedly connected to the first motor, the outer wall of the output shaft of the front end of the first motor is sleeved with a detection mechanism, the output shaft of the front end of the first motor is fixedly connected to the first gear, the upper and lower sides of the left end of the first gear are meshed with the second gear, the front end center of the second gear is fixedly connected to the first rotating rod, the front end of the first rotating rod on the upper side of the left end of the first gear is rotatably connected to the second rotating rod, the front end of the second rotating rod is rotatably connected to the third rotating rod on the lower left side of the front end of the second rotating rod, the front end of the third rotating rod is rotatably connected to the fourth rotating rod on the left side, the back of the fourth rotating rod is rotatably connected to the front end of the first sliding block, the outer wall of the first sliding block is slidably connected to the limit plate, the bottom of the first sliding block is fixedly connected to the piston rod in the piston cylinder, the front end and bottom of the piston cylinder are fixedly connected to a connecting pipe, and the delivery port of the connecting pipe is fixedly connected to a one-way valve.

[0006] Preferably, the detection mechanism includes a torque limiter, the torque limiter is sleeved on the outer wall of the output shaft at the front end of the first motor, a pressure sensor is fixedly connected to the upper front end of the second mold, and the back sensor head of the pressure sensor passes through the front end of the second mold and is fixedly connected to the inside thereof, an insulating mounting shell is fixedly connected to the right end of the first mounting box, a PCB board is fixedly connected inside the insulating mounting shell, a data acquisition card is soldered and fixed at the center of the right end of the PCB board, a microcontroller is soldered and fixed to the front side of the right end of the PCB board, and a driver is soldered and fixed to the rear side of the right end of the PCB board.

[0007] Preferably, the pretreatment mechanism includes a first fixing rod, a first fixing rod is fixedly connected to the lower back of the L-shaped mounting frame, a second mounting box is fixedly connected to the back of the first fixing rod, a second motor is fixedly connected to the left end of the second mounting box, a third gear is fixedly connected to the output shaft of the right end of the second motor, a fourth gear is meshed at the right end of the bottom of the third gear, a fifth gear is meshed at the left side of the back of the third gear, a sixth gear is meshed at the rear side of the fourth gear, a first connecting rod is fixedly connected to the right end of the sixth gear, and a second connecting rod is fixedly connected to the right end of the fifth gear, the outer wall of the first connecting rod and the right end of the second connecting rod are both fixedly connected to the inner gear of the first gear tooth plate, the top of the inner gear plate of the first gear tooth plate is slidably connected to the L-shaped fixing frame, the front end of the inner gear plate of the first gear tooth plate is fixedly connected to the L-shaped rod, the left end of the L-shaped rod at the front end of the inner gear plate of the first gear tooth plate of the outer wall of the first connecting rod is fixedly connected to the nozzle, the right ends of the third gear, the fourth gear and the sixth gear are all rotatably connected to the left end of the limiting frame, wherein the right end of the inner gear of the first gear tooth plate at the right end of the second connecting rod is rotatably connected to the L-shaped fixing frame.

[0008] Preferably, the shock absorbing mechanism includes an arc block, the bottom of the conveying pipe is fixedly connected with an arc block, the bottom of the arc block is fixedly connected with a second fixed rod, the bottom of the second fixed rod is fixedly connected with a connecting block, the front end of the connecting block is provided with a V-shaped groove, a convex rod is slidably connected in the V-shaped groove, the back of the convex rod is fixedly connected with a moving block, the right end of the moving block is fixedly connected with a spring, the right end of the spring is fixedly connected to the left end of the fixed plate, the bottom of the connecting block is fixedly connected to the pushing rod in the buffer cylinder, wherein the bottom of the fixed plate is fixedly connected to the top right end of the L-shaped mounting frame, the bottom of the buffer cylinder is fixedly connected to the top right end of the L-shaped mounting frame, and the buffer cylinder is arranged on the front side of the fixed plate.

[0009] Preferably, the mounting mechanism includes a third mounting box, a third mounting box is fixedly connected to the lower front end of the first mold, a mounting rod is fixedly connected to the left end of the third mounting box, a first electromagnetic spring is fixedly connected to the left end of the mounting rod, a sliding rod is fixedly connected to the right end of the first electromagnetic spring, and the sliding rod passes through the right end of the mounting rod and the left end of the third mounting box and is slidably connected to the inside, the right end of the sliding rod is fixedly connected to the inner gear plate of the second gear tooth plate, and the gear plate is slidably connected to the bottom of the third mounting box, a third connecting rod is fixedly connected to the top of the inner gear of the second gear tooth plate, and the third connecting rod is segmented, specifically consisting of two groups of rod bodies sleeved up and down, and the upper and lower rod bodies of the third connecting rod are respectively connected to the upper and lower rod bodies of the electromagnetic clutch The slot is plugged and fixed, and a rotating roller is fixedly connected to the top of the third connecting rod. The second electromagnetic spring is fixedly connected to the upper and lower sides of the left end of the third installation box, and the right end of the second electromagnetic spring is fixedly connected to the insertion rod. The top of the rotating roller is fixedly connected to a swing block, and the left end of the back of the swing block is fixedly connected to an electromagnetic block. The electromagnetic block is magnetically adsorbed to the metal rod, and a round tube is fixedly connected to the top of the metal rod. An electromagnetic slot is provided at the right end of the bottom of the third installation box, and the electromagnetic slot is composed of a slide slot provided at the right end of the bottom of the third installation box and three groups of electromagnetic blocks fixedly connected in the slide slot. The electromagnetic block is electrically connected to the external output device, and the slide slot in the electromagnetic slot is slidably connected to the second sliding block, and the top of the second sliding block is fixedly connected to a control switch.

[0010] Preferably, the right side of the back of the third rotating rod is rotatably connected to the upper front end of the first rotating rod at the lower left end of the first gear, and the back of the limiting plate is fixedly connected to the front end of the first installation box.

[0011] Preferably, the back of the first gear and the second gear are both rotatably connected to the front end of the first installation box, the back of the piston cylinder is fixedly connected to the front end of the first installation box through a connecting rod, and the bottom of the bottom connecting pipe of the piston cylinder is fixedly connected to the top of the first mold.

[0012] Preferably, the second connecting rod passes through the first connecting rod and is rotatably connected to the inside of the first connecting rod, and the right end of the L-shaped rod at the front end of the inner toothed plate of the first gear toothed plate member at the right end of the second connecting rod is fixedly connected to a nozzle.

[0013] Preferably, the right end of the limiting frame is fixedly connected to the right end inside the second installation box, the first connecting rod passes through the limiting frame and is rotatably connected to the inside thereof, and the upper left end of the L-shaped fixing frame is fixedly connected to the upper right end of the second installation box.

[0014] Preferably, the control switch is electrically connected to the second motor, the insertion rod is plugged and fixed to the left end of the rotating roller, the second sliding block is magnetically adsorbed to the electromagnetic block in the electromagnetic slot, and the first electromagnetic spring, the second electromagnetic spring and the electromagnetic block are all electrically connected to the external current output device.

[0015] The present invention has the following advantages: The present invention provides a supercritical foaming molding mold device through improvement, which has the following improvements compared with the same type of equipment: The supercritical foaming molding mold device described in the present invention is provided with an exhaust mechanism, which exhausts air from the first mold and the second mold through a piston cylinder to prevent the formation of bubbles in the foaming process due to the influence of air when injecting polymer later, thereby improving product quality; a detection mechanism is provided to control the rotation speed of the first motor according to instructions through a driver, adjust the later exhaust speed, provide data support for subsequent production and maintenance, and prevent the microcontroller from calculating the rotation speed instruction that causes the first motor to output excessive torque due to algorithm errors, pressure sensor failure or abnormal working conditions through a torque limiter; a pretreatment mechanism is provided to spray hot air on the first mold and the second mold respectively through two groups of nozzles to remove some moisture and impurities that may exist on the surfaces of the first mold and the second mold, thereby preventing the later It is difficult for the foaming material to evenly fill the first mold and the second mold and form an ideal pore structure. At the same time, the temperature of the first mold and the second mold is increased, the curing speed of the foaming material is increased, and the time of the entire foaming molding process is reduced; a shock-absorbing mechanism is set to perform a shock-absorbing on the delivery pipe through a spring, and then the vibration and impact of the delivery pipe are absorbed and dispersed again through the buffer cylinder, thereby reducing the downtime of the mold device through shock absorption, improving production efficiency, and increasing the service life of the mold device; an installation mechanism is set to install the round tube or the external square tube through the magnetic adsorption of the electromagnetic block and the metal rod, so as to change the shape of the pipeline as required, improve the flow efficiency of the supercritical fluid, and then squeeze the control switch through the inner tooth plate of the second gear tooth plate member, and then control the second motor to work through the control switch. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the first mold and the second mold of the present invention; Figure 2 It is a schematic diagram of the three-dimensional exploded structure of the air extraction mechanism of the present invention; Figure 3 It is a schematic diagram of the three-dimensional decomposition structure of the detection mechanism of the present invention; Figure 4 It is a schematic diagram of the three-dimensional decomposition structure of the pretreatment mechanism of the present invention; Figure 5 It is a schematic diagram of the three-dimensional exploded structure of the shock absorbing mechanism of the present invention; Figure 6 It is a schematic diagram of the three-dimensional exploded structure of the installation mechanism of the present invention; Figure 7 The present invention Figure 6 Schematic diagram of the enlarged structure at point A in the middle.

[0017] Among them: L-shaped mounting frame-1, limiting rod-2, first mold-3, exhaust mechanism-4, first mounting box-41, first motor-42, detection mechanism-43, torque limiter-431, pressure sensor-432, insulating mounting shell-433, PCB board-434, data acquisition card-435, microcontroller-436, driver-437, first gear-44, second gear-45, first rotating rod-46, second rotating rod-47, third rotating rod-48, fourth rotating rod-49, first sliding block-410, limiting plate-411, piston cylinder-412, connecting pipe-413, one-way valve-414, pretreatment mechanism-5, first fixing rod-51, second mounting box-52, second motor-53, third gear-54, fourth gear-55, fifth gear-56, sixth gear-57, first connecting rod-58, second connecting rod-59, first Gear plate-510, L-shaped fixing frame-511, L-shaped rod-512, nozzle-513, limit frame-514, conveying pipe-6, shock absorbing mechanism-7, arc block-71, second fixing rod-72, connecting block-73, V-shaped slide groove-74, convex rod-75, moving block-76, spring-77, fixing plate-78, buffer cylinder-79, cylinder-8, second mold-9, installation mechanism-10, third installation box-101, Mounting rod 102, first electromagnetic spring 103, sliding rod 104, second gear tooth plate 105, third connecting rod 106, electromagnetic clutch 107, rotating roller 108, second electromagnetic spring 109, insert rod 1010, swing block 1011, electromagnetic block 1012, metal rod 1013, round tube 1014, electromagnetic slot 1015, second sliding block 1016, control switch 1017. DETAILED DESCRIPTION

[0018] The following is combined with Figure 1 to Figure 7 The principles and features of the present invention are described, and the examples given are only used to explain the present invention and are not used to limit the scope of the present invention. In the following paragraphs, the present invention is described in more detail by way of example with reference to the accompanying drawings. It should be noted that the drawings are all in a very simplified form and are not in precise proportions, and are only used to facilitate and clearly assist in explaining the purpose of the embodiments of the present invention.

[0019] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The following is an explanation of the embodiments of the present invention based on its overall structure.

[0021] Embodiment 1:

[0022] See also Figure 1~Figure 2 A supercritical foaming molding mold device of the present invention comprises an L-shaped mounting frame 1, the right end of the L-shaped mounting frame 1 is fixedly connected with a limiting rod 2 all around, the right end of the limiting rod 2 is fixedly connected with a first mold 3, the top of the first mold 3 is fixedly connected with an exhaust mechanism 4, the back of the L-shaped mounting frame 1 is fixedly connected with a pretreatment mechanism 5, the right end of the first mold 3 is fixedly connected with a delivery pipe 6, the bottom of the delivery pipe 6 is fixedly connected with a shock absorbing mechanism 7, the center of the right end of the L-shaped mounting frame 1 is fixedly connected with a cylinder 8, the right end of the cylinder 8 is fixedly connected with a second mold 9, the front end of the first mold 3 is fixedly connected with a mounting mechanism 10, the limiting rod 2 passes through the second mold 9 and is slidably connected to the inside thereof; The vacuum mechanism 4 includes a first installation box 41 , the first installation box 41 is fixedly connected to the top of the first mold 3 , and a first motor 42 is fixedly connected to the right side of the rear end of the first installation box 41 , so that the first installation box 41 is convenient for installing and fixing the first motor 42 .

[0023] The outer wall of the output shaft at the front end of the first motor 42 is sleeved with a detection mechanism 43, and the output shaft at the front end of the first motor 42 is fixedly connected with a first gear 44. The upper and lower sides of the left end of the first gear 44 are meshed with second gears 45, and the first gear 44 is convenient for driving the second gear 45 to rotate.

[0024] A first rotating rod 46 is fixedly connected to the center of the front end of the second gear 45, a second rotating rod 47 is rotatably connected to the lower front end of the first rotating rod 46 on the upper left end of the first gear 44, and a third rotating rod 48 is rotatably connected to the lower left side of the front end of the second rotating rod 47. The first rotating rod 46 facilitates the second rotating rod 47 and the third rotating rod 48 to swing.

[0025] The fourth rotating rod 49 is rotatably connected to the left side of the front end of the third rotating rod 48, and the lower back of the fourth rotating rod 49 is rotatably connected to the front end of the first sliding block 410. The outer wall of the first sliding block 410 is slidably connected to the limit plate 411, and the first sliding block 410 is convenient for driving the piston rod in the piston cylinder 412 to move.

[0026] The bottom of the first sliding block 410 is fixedly connected to the piston rod in the piston cylinder 412, the front end and the bottom of the piston cylinder 412 are fixedly connected to the connecting pipe 413, the delivery port of the connecting pipe 413 is fixedly connected to the one-way valve 414, the right side of the back of the third rotating rod 48 is rotatably connected to the upper front end of the first rotating rod 46 on the lower left end of the first gear 44, and the one-way valve 414 facilitates the control of gas in and out.

[0027] The back of the limiting plate 411 is fixedly connected to the front end of the first installation box 41, the backs of the first gear 44 and the second gear 45 are both rotatably connected to the front end of the first installation box 41, the back of the piston cylinder 412 is fixedly connected to the front end of the first installation box 41 through a connecting rod, and the bottom of the connecting pipe 413 at the bottom of the piston cylinder 412 is fixedly connected to the top of the first mold 3.

[0028] The working principle of a supercritical foaming molding mold device based on the first embodiment is: First, when using this device, first place the device in the working area, and then connect the device to an external power source to provide the device with the power required for operation; Second, first, the first mold 3 and the second mold 9 are pretreated by the pretreatment mechanism 5, and then the cylinder 8 is started, and the cylinder 8 drives the second mold 9 to move rightward in the limit rod 2, so that the first mold 3 and the second mold 9 are closed, and then the air inside the first mold 3 and the second mold 9 is removed by the exhaust mechanism 4, and then the pipeline of the supercritical fluid is replaced as required by the installation mechanism 10, and then the polymer is transported to the first mold 3 and the second mold 9 through the delivery pipe 6, and the delivery pipe 6 is damped by the damping mechanism 7 during the transportation process, and then the supercritical fluid is injected into the first mold 3 and the second mold 9 under specific conditions, and mixed with the polymer. With the continuous addition of the supercritical fluid, the dissolved supercritical fluid gradually becomes supersaturated to form more bubble nuclei. During the cooling process, the bubbles gradually solidify, and finally a microporous foamed plastic product is obtained; Third, when it is necessary to remove the air inside the first mold 3 and the second mold 9, the first motor 42 and the two sets of one-way valves 414 are started, the speed of the first motor 42 is controlled by the detection mechanism 43, and then the first motor 42 drives the first gear 44 to rotate, the first gear 44 drives the two sets of second gears 45 to rotate, the two sets of second gears 45 drive the two sets of first rotating rods 46 to rotate, the two sets of first rotating rods 46 respectively drive the second rotating rod 47 and the third rotating rod 48 to swing, the third rotating rod 48 drives the fourth rotating rod 49 to swing, and the fourth rotating rod 49 drives the first sliding block 410 to move inward in the limit plate 411. The first sliding block 410 drives the piston rod in the piston cylinder 412 to move upward, so that the air inside the first mold 3 and the second mold 9 is transported to the piston cylinder 412 through the connecting pipe 413 at the bottom of the piston cylinder 412, and then repeat the above steps, so that the first sliding block 410 drives the piston rod in the piston cylinder 412 to move downward, so that the air in the piston cylinder 412 is transported to the outside through the connecting pipe 413 at the front end of the piston cylinder 412, and the first mold 3 and the second mold 9 are evacuated to prevent the air from being affected when the polymer is injected later, resulting in the formation of bubbles in the foaming process, thereby improving product quality.

[0029] Embodiment 2:

[0030] See also Figure 3 A supercritical foaming molding mold device of the present invention, compared with the first embodiment, this embodiment also includes: a detection mechanism 43, the detection mechanism 43 includes a torque limiter 431, the outer wall of the output shaft at the front end of the first motor 42 is sleeved with the torque limiter 431, a pressure sensor 432 is fixedly connected to the top of the front end of the second mold 9, and the back sensor head of the pressure sensor 432 passes through the front end of the second mold 9 and is fixedly connected to the inside thereof, and the pressure sensor 432 is convenient for detecting the pressure inside the first mold 3 and the second mold 9.

[0031] An insulating installation shell 433 is fixedly connected to the right end of the first installation box 41 , and a PCB board 434 is fixedly connected inside the insulating installation shell 433 . The insulating installation shell 433 is convenient for installing and fixing the PCB board 434 .

[0032] A data acquisition card 435 is fixed by solder at the center of the right end of the PCB board 434, a microcontroller 436 is fixed by solder at the front side of the right end of the PCB board 434, and a driver 437 is fixed by solder at the rear side of the right end of the PCB board 434. The driver 437 is convenient for controlling the speed of the first motor 42 according to instructions.

[0033] In this embodiment: After the first mold 3 and the second mold 9 are closed, the pressure in the first mold 3 and the second mold 9 is detected by the pressure sensor 432, and then the staff connects the connecting line between the pressure sensor 432 and the data acquisition card 435, so that the pressure sensor 432 performs pressure detection and outputs an analog signal, and then converts the analog signal of the pressure sensor 432 into a digital signal through the data acquisition card 435, and then the microcontroller 436 receives the digital signal, and calculates the corresponding speed of the first motor 42 according to a preset algorithm. The microcontroller 436 sends the calculated speed of the first motor 42 to the driver 437, and the driver 437 controls the speed of the first motor 42 according to the instruction, so as to realize real-time detection of the pressure changes in the first mold 3 and the second mold 9, adjust the later exhaust speed, provide data support for subsequent production and maintenance, and prevent the microcontroller 436 from calculating the speed instruction due to algorithm errors, pressure sensor 432 failure or abnormal working conditions through the torque limiter 431. The speed command causes the first motor 42 to output excessive torque.

[0034] Embodiment three:

[0035] See also Figure 4 Compared with the first embodiment, the present invention further includes a supercritical foaming molding mold device: a pretreatment mechanism 5, the pretreatment mechanism 5 includes a first fixing rod 51, the first fixing rod 51 is fixedly connected to the lower back of the L-shaped mounting frame 1, and the back of the first fixing rod 51 is fixedly connected to the second mounting box 52, and the first fixing rod 51 facilitates the installation and fixation of the second mounting box 52.

[0036] A second motor 53 is fixedly connected to the left end of the second installation box 52, and a third gear 54 is fixedly connected to the output shaft at the right end of the second motor 53. A fourth gear 55 is meshed with the right end of the bottom of the third gear 54, and a fifth gear 56 is meshed with the left side of the back of the third gear 54. The fourth gear 55 is convenient for driving the sixth gear 57 to rotate.

[0037] The sixth gear 57 is meshed with the rear side of the fourth gear 55, the right end of the sixth gear 57 is fixedly connected to the first connecting rod 58, the right end of the fifth gear 56 is fixedly connected to the second connecting rod 59, the outer wall of the first connecting rod 58 and the right end of the second connecting rod 59 are fixedly connected to the inner gear of the first gear tooth plate part 510, and the second connecting rod 59 is convenient for driving the inner gear of the first gear tooth plate part 510 to rotate.

[0038] The top of the inner tooth plate of the first gear tooth plate part 510 is slidably connected to the L-shaped fixed frame 511, and the front end of the inner tooth plate of the first gear tooth plate part 510 is fixedly connected to the L-shaped rod 512, and the left end of the L-shaped rod 512 at the front end of the inner tooth plate of the first gear tooth plate part 510 on the outer wall of the first connecting rod 58 is fixedly connected to the nozzle 513, which is convenient for transporting and spraying hot air.

[0039] The right ends of the third gear 54, the fourth gear 55 and the sixth gear 57 are all rotatably connected to the left end of the limit frame 514, the right end of the second connecting rod 59 and the right end of the inner gear of the first gear tooth plate part 510 are rotatably connected to the L-shaped fixing frame 511, the second connecting rod 59 passes through the first connecting rod 58 and is rotatably connected to its interior, and the L-shaped fixing frame 511 facilitates the limiting movement inside the first gear tooth plate part 510.

[0040] The right end of the L-shaped rod 512 at the front end of the inner tooth plate of the first gear tooth plate part 510 at the right end of the second connecting rod 59 is fixedly connected with the nozzle 513, the right end of the limiting frame 514 is fixedly connected to the right end inside the second installation box 52, the first connecting rod 58 passes through the limiting frame 514 and is rotatably connected to the inside thereof, and the upper left end of the L-shaped fixing frame 511 is fixedly connected to the upper right end of the second installation box 52.

[0041] In this embodiment: When the first mold 3 and the second mold 9 need to be pre-treated, the second motor 53 is controlled to work through the mounting mechanism 10, and the external hot air box is connected to the two groups of nozzles 513 respectively, and the third gear 54 is driven to rotate by the second motor 53, and the third gear 54 drives the fourth gear 55 and the fifth gear 56 to rotate, and the fifth gear 56 drives the sixth gear 57 to rotate, so that the sixth gear 57 drives the first connecting rod 58 to rotate, and the fifth gear 56 drives the second connecting rod 59 to rotate, so that the first connecting rod 58 and the second connecting rod 59 respectively drive the two groups of first gear toothed plate parts 510 internal gears to rotate, and the two groups of first gear toothed plate parts 510 internal gears drive the two groups of first gear toothed plate parts 510 internal gears to move, The inner tooth plates of the two groups of first gear tooth plate members 510 drive the two groups of L-shaped rods 512 to move in an alternating manner, so that the distance between the two groups of L-shaped rods 512 increases step by step, and then the two groups of L-shaped rods 512 drive the two groups of nozzles 513 to move in an alternating manner, so that the two groups of nozzles 513 spray hot air on the first mold 3 and the second mold 9 respectively, completing the pretreatment of the first mold 3 and the second mold 9, removing some moisture and impurities that may exist on the surface of the first mold 3 and the second mold 9, preventing the later foaming material from being difficult to evenly fill the first mold 3 and the second mold 9 and forming an ideal bubble structure, while increasing the temperature of the first mold 3 and the second mold 9, increasing the curing speed of the foaming material, and reducing the time of the entire foaming molding process.

[0042] Embodiment 4:

[0043] See also Figure 5 A supercritical foaming molding mold device of the present invention, compared with the first embodiment, this embodiment also includes: a shock absorbing mechanism 7, the shock absorbing mechanism 7 includes an arc block 71, the bottom of the conveying pipe 6 is fixedly connected with the arc block 71, the bottom of the arc block 71 is fixedly connected with a second fixing rod 72, and the arc block 71 is convenient for driving the second fixing rod 72 to move.

[0044] A connecting block 73 is fixedly connected to the bottom of the second fixed rod 72, a V-shaped groove 74 is provided at the front end of the connecting block 73, a convex rod 75 is slidably connected in the V-shaped groove 74, a moving block 76 is fixedly connected to the back of the convex rod 75, and a spring 77 is fixedly connected to the right end of the moving block 76, so that the convex rod 75 can easily drive the moving block 76 to move.

[0045] The right end of the spring 77 is fixedly connected to the left end of the fixed plate 78, the bottom of the connecting block 73 is fixedly connected to the push rod in the buffer cylinder 79, and the bottom of the fixed plate 78 is fixedly connected to the right end of the top of the L-shaped mounting frame 1. The buffer cylinder 79 is convenient for absorbing and dispersing the vibration and impact of the conveying pipe 6 again.

[0046] The bottom of the buffer cylinder 79 is fixedly connected to the top right end of the L-shaped mounting frame 1 , and the buffer cylinder 79 is arranged on the front side of the fixing plate 78 .

[0047] In this embodiment: When the conveying pipe 6 vibrates, the conveying pipe 6 drives the arc block 71 to move downward, the arc block 71 drives the second fixed rod 72 to move downward, the second fixed rod 72 drives the connecting block 73 to move downward, the connecting block 73 drives the V-shaped slide groove 74 to move downward, the V-shaped slide groove 74 drives the convex rod 75 to move leftward, the convex rod 75 drives the moving block 76 to move leftward, the moving block 76 drives the spring 77 to stretch, and the spring 77 is used to dampen the conveying pipe 6 once, and the connecting block 73 squeezes the buffer cylinder 79 while moving downward, and the buffer cylinder 79 absorbs and disperses the vibration and impact of the conveying pipe 6 again, thereby reducing the downtime of the mold device through damping, improving production efficiency, and improving the service life of the mold device.

[0048] Embodiment five:

[0049] See also Figure 6~Figure 7 A supercritical foaming molding mold device of the present invention, compared with the first embodiment, this embodiment also includes: an installation mechanism 10, the installation mechanism 10 includes a third installation box 101, the third installation box 101 is fixedly connected to the lower front end of the first mold 3, and the left end of the third installation box 101 is fixedly connected to the installation rod 102, and the third installation box 101 is convenient for installing and fixing the installation rod 102.

[0050] The first electromagnetic spring 103 is fixedly connected to the left end of the mounting rod 102, and the sliding rod 104 is fixedly connected to the right end of the first electromagnetic spring 103. The sliding rod 104 passes through the right end of the mounting rod 102 and the left end of the third mounting box 101 and is slidably connected to the inside thereof. The sliding rod 104 facilitates the movement of the inner gear plate of the second gear tooth plate member 105.

[0051] The right end of the sliding rod 104 is fixedly connected to the inner tooth plate of the second gear tooth plate member 105, and the tooth plate is slidably connected to the bottom of the third installation box 101. The top of the inner gear of the second gear tooth plate member 105 is fixedly connected with a third connecting rod 106, and the third connecting rod 106 is arranged in sections, so that the third connecting rod 106 can drive the rotating roller 108 to rotate.

[0052] Specifically, it is composed of two groups of rod bodies that are sleeved up and down. The upper and lower rod bodies of the third connecting rod 106 are respectively plugged and fixed with the upper and lower grooves of the electromagnetic clutch 107. The top of the third connecting rod 106 is fixedly connected with a rotating roller 108. The upper and lower sides of the left end of the third installation box 101 are fixedly connected with the second electromagnetic spring 109. The second electromagnetic spring 109 is convenient for driving the insertion rod 1010 to move.

[0053] The right end of the second electromagnetic spring 109 is fixedly connected to the insertion rod 1010, the top of the rotating roller 108 is fixedly connected to the swing block 1011, and the left end of the back of the swing block 1011 is fixedly connected to the electromagnetic block 1012. The electromagnetic block 1012 is magnetically adsorbed to the metal rod 1013, which facilitates the electromagnetic block 1012 to be magnetically adsorbed to the metal rod 1013.

[0054] A round tube 1014 is fixedly connected to the top of the metal rod 1013, and an electromagnetic slot 1015 is provided at the right end of the bottom inner side of the third installation box 101. The electromagnetic slot 1015 is composed of a slide slot provided at the right end of the bottom inner side of the third installation box 101 and three groups of electromagnetic blocks fixedly connected in the slide slot. The electromagnetic block is electrically connected to the external output device, and a second sliding block 1016 is slidably connected to the slide slot in the electromagnetic slot 1015. The second sliding block 1016 is convenient for driving the control switch 1017 to move.

[0055] A control switch 1017 is fixedly connected to the top of the second sliding block 1016, and the control switch 1017 is electrically connected to the second motor 53. The insertion rod 1010 is plugged and fixed to the left end of the rotating roller 108. The second sliding block 1016 is magnetically attracted to the electromagnetic block in the electromagnetic slot 1015, and the first electromagnetic spring 103, the second electromagnetic spring 109 and the electromagnetic block 1012 are all electrically connected to the external current output device.

[0056] In this embodiment: First, when the round tube 1014 or the external square tube needs to be installed, the electromagnetic clutch 107 is started, so that the electromagnetic clutch 107 locks the third connecting rod 106, and the metal rod 1013 is driven to be inserted into the top of the third installation box 101 through the round tube 1014 or the external square tube, and then the first electromagnetic spring 103 is driven to stop working through the external current output device, so that the first electromagnetic spring 103 drives the inner tooth plate of the second gear tooth plate member 105 to move leftward, the inner tooth plate of the second gear tooth plate member 105 drives the inner gear of the second gear tooth plate member 105 to rotate, the inner gear of the second gear tooth plate member 105 drives the third connecting rod 106 to rotate, the third connecting rod 106 drives the rotating roller 108 to rotate, and the rotating roller 108 drives the swing block 101 1 rotates, the swing block 1011 drives the electromagnetic block 1012 to rotate, so that the electromagnetic block 1012 contacts the metal rod 1013, and then drives the two sets of second electromagnetic springs 109 to work through the external current output device, so that the two sets of second electromagnetic springs 109 stop working, and then the two sets of second electromagnetic springs 109 drive the two sets of plug rods 1010 to move rightward and plug and fix with the rotating roller 108 to prevent the rotating roller 108 from rotating due to external factors, and then drives the electromagnetic block 1012 to work through the external current output device, so that the electromagnetic block 1012 and the metal rod 1013 are magnetically adsorbed, so as to install the round tube 1014 or the external square tube, and then change the shape of the pipeline according to the needs to improve the flow efficiency of the supercritical fluid; Second, when it is necessary to control the operation of the second motor 53, the three groups of electromagnetic blocks in the electromagnetic slot 1015 are driven to operate step by step through the external current output device, so that the second sliding block 1016 is affected by the electromagnetic blocks of the electromagnetic slot 1015 and moves to the left, and the second sliding block 1016 drives the control switch 1017 to move to the left, so that the inner tooth plate of the second gear tooth plate member 105 squeezes the control switch 1017 during the process of moving to the right, and then the second motor 53 is controlled to operate through the control switch 1017.

[0057] The present invention provides a supercritical foaming molding mold device through improvement, wherein an exhaust mechanism 4 is provided, and the first mold 3 and the second mold 9 are exhausted through a piston cylinder 412, so as to prevent the air from being affected when the polymer is injected later and the formation of bubbles in the foaming process, thereby improving product quality; a detection mechanism 43 is provided, and the rotation speed of the first motor 42 is controlled according to instructions through a driver 437, and the later exhaust speed is adjusted to provide data support for subsequent production and maintenance, and a torque limiter 431 is used to prevent the microcontroller 436 from calculating the rotation speed instruction and causing the first motor 42 to output excessive torque due to algorithm errors, pressure sensor 432 failure or abnormal working conditions; a pretreatment mechanism 5 is provided, and hot air is sprayed on the first mold 3 and the second mold 9 respectively through two groups of nozzles 513, so as to remove some moisture and impurities that may exist on the surface of the first mold 3 and the second mold 9, thereby preventing the later It is difficult for the foaming material to evenly fill the first mold 3 and the second mold 9 and form an ideal pore structure. At the same time, the temperature of the first mold 3 and the second mold 9 is increased, the curing speed of the foaming material is increased, and the time of the entire foaming molding process is reduced; a shock absorbing mechanism 7 is set to perform a shock absorption on the delivery pipe 6 through the spring 77, and then the vibration and impact of the delivery pipe 6 are absorbed and dispersed again through the buffer cylinder 79, thereby reducing the downtime of the mold device through shock absorption, improving production efficiency, and increasing the service life of the mold device; a mounting mechanism 10 is set to install the circular tube 1014 or the external square tube through the magnetic adsorption of the electromagnetic block 1012 and the metal rod 1013, so as to change the pipeline shape as required, improve the flow efficiency of the supercritical fluid, and then squeeze the control switch 1017 through the inner tooth plate of the second gear tooth plate member 105, and then control the second motor 53 to work through the control switch 1017.

[0058] The above shows and describes the basic principle, main features and advantages of the present invention, and the standard parts used in the present invention can be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0059] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A supercritical foaming molding mold device, comprising an L-shaped mounting frame (1), wherein the right end of the L-shaped mounting frame (1) is fixedly connected to a limiting rod (2) all around, the right end of the limiting rod (2) is fixedly connected to a first mold (3), the top of the first mold (3) is fixedly connected to an exhaust mechanism (4), the back of the L-shaped mounting frame (1) is fixedly connected to a pretreatment mechanism (5), the right end of the first mold (3) is fixedly connected to a delivery pipe (6), the bottom of the delivery pipe (6) is fixedly connected to a shock absorbing mechanism (7), the center of the right end of the L-shaped mounting frame (1) is fixedly connected to a cylinder (8), the right end of the cylinder (8) is fixedly connected to a second mold (9), and the front end of the first mold (3) is fixedly connected to a mounting mechanism (10), wherein: The limiting rod (2) passes through the second mold (9) and is slidably connected to the interior of the second mold; The invention is characterized in that: the air extraction mechanism (4) comprises a first installation box (41), the first installation box (41) is fixedly connected to the top of the first mold (3), a first motor (42) is fixedly connected to the right side of the rear end of the first installation box (41), a detection mechanism (43) is sleeved on the outer wall of the output shaft at the front end of the first motor (42), a first gear (44) is fixedly connected to the output shaft at the front end of the first motor (42), a second gear (45) is meshed on both the upper and lower sides of the left end of the first gear (44), a first rotating rod (46) is fixedly connected to the center of the front end of the second gear (45), and a first rotating rod (46) is fixedly connected to the front end of the first rotating rod (46) at the upper left end of the first gear (44). A second rotating rod (47) is rotatably connected to the front side, a third rotating rod (48) is rotatably connected to the lower left side of the front end of the second rotating rod (47), a fourth rotating rod (49) is rotatably connected to the left side of the front end of the third rotating rod (48), the lower back of the fourth rotating rod (49) is rotatably connected to the front end of the first sliding block (410), the outer wall of the first sliding block (410) is slidably connected to the limit plate (411), the bottom of the first sliding block (410) is fixedly connected to the piston rod in the piston cylinder (412), the front end and the bottom of the piston cylinder (412) are both fixedly connected to a connecting pipe (413), and a one-way valve (414) is fixedly connected to the delivery port of the connecting pipe (413).

2. A supercritical foaming molding mold device according to claim 1, characterized in that: The detection mechanism (43) comprises a torque limiter (431), the outer wall of the output shaft at the front end of the first motor (42) is sleeved with the torque limiter (431), a pressure sensor (432) is fixedly connected to the upper front end of the second mold (9), and the back sensor head of the pressure sensor (432) passes through the front end of the second mold (9) and is fixedly connected to the inside thereof, an insulating mounting shell (433) is fixedly connected to the right end of the first mounting box (41), a PCB board (434) is fixedly connected inside the insulating mounting shell (433), a data acquisition card (435) is fixedly fixed at the center of the right end of the PCB board (434) by soldering, a microcontroller (436) is fixedly ...

3. A supercritical foaming molding mold device according to claim 2, characterized in that: The pretreatment mechanism (5) comprises a first fixing rod (51), the first fixing rod (51) is fixedly connected to the lower back of the L-shaped mounting frame (1), the first fixing rod (51) is fixedly connected to the back of a second mounting box (52), the left end of the second mounting box (52) is fixedly connected to a second motor (53), the right end of the output shaft of the second motor (53) is fixedly connected to a third gear (54), the right end of the bottom of the third gear (54) is meshed with a fourth gear (55), the left side of the back of the third gear (54) is meshed with a fifth gear (56), the rear side of the fourth gear (55) is meshed with a sixth gear (57), the right end of the sixth gear (57) is fixedly connected to a first connecting rod (58), the right end of the fifth gear (56) is fixedly connected to a second connecting rod (59), and the The outer wall of the first connecting rod (58) and the right end of the second connecting rod (59) are both fixedly connected to the inner gear of the first gear tooth plate member (510); the top of the inner gear plate of the first gear tooth plate member (510) is slidably connected to the L-shaped fixing frame (511); the front end of the inner gear plate of the first gear tooth plate member (510) is fixedly connected to the L-shaped rod (512); the left end of the L-shaped rod (512) at the front end of the inner gear plate of the first gear tooth plate member (510) on the outer wall of the first connecting rod (58) is fixedly connected to the nozzle (513); the right ends of the third gear (54), the fourth gear (55) and the sixth gear (57) are all rotatably connected to the left end of the limiting frame (514); wherein the right end of the inner gear of the first gear tooth plate member (510) at the right end of the second connecting rod (59) is rotatably connected to the L-shaped fixing frame (511).

4. A supercritical foaming molding mold device according to claim 3, characterized in that: The shock absorbing mechanism (7) comprises an arc block (71), the bottom of the conveying pipe (6) is fixedly connected with the arc block (71), the bottom of the arc block (71) is fixedly connected with a second fixed rod (72), the bottom of the second fixed rod (72) is fixedly connected with a connecting block (73), the front end of the connecting block (73) is provided with a V-shaped slide groove (74), a convex rod (75) is slidably connected in the V-shaped slide groove (74), the back of the convex rod (75) is fixedly connected with a moving block (76), the right end of the moving block (76) is fixedly connected with a spring (77), the right end of the spring (77) is fixedly connected to the left end of the fixing plate (78), the bottom of the connecting block (73) is fixedly connected to a pushing rod in a buffer cylinder (79), wherein the bottom of the fixing plate (78) is fixedly connected to the top right end of the L-shaped mounting frame (1), the bottom of the buffer cylinder (79) is fixedly connected to the top right end of the L-shaped mounting frame (1), and the buffer cylinder (79) is arranged on the front side of the fixing plate (78).

5. A supercritical foaming molding mold device according to claim 4, characterized in that: The mounting mechanism (10) comprises a third mounting box (101), the third mounting box (101) is fixedly connected to the lower front end of the first mold (3), the left end of the third mounting box (101) is fixedly connected to a mounting rod (102), the left end of the mounting rod (102) is fixedly connected to a first electromagnetic spring (103), the right end of the first electromagnetic spring (103) is fixedly connected to a sliding rod (104), and the sliding rod (104) passes through the right end of the mounting rod (102) and the left end of the third mounting box (101) and is connected thereto. The third mounting box (101) is provided with a third connecting rod (106) which is fixedly connected to the top of the inner gear of the second gear tooth plate (105). The third connecting rod (106) is provided in a segmented manner and specifically consists of two groups of rod bodies which are sleeved in an upper and lower manner. The upper and lower rod bodies of the third connecting rod (106) are respectively plugged and fixed to the upper and lower notches of the electromagnetic clutch (107). A rotating roller (108) is fixedly connected to the top of the rod (106); a second electromagnetic spring (109) is fixedly connected to both upper and lower sides of the left end of the third installation box (101); a plug rod (1010) is fixedly connected to the right end of the second electromagnetic spring (109); a swing block (1011) is fixedly connected to the top of the rotating roller (108); an electromagnetic block (1012) is fixedly connected to the left end of the back of the swing block (1011); the electromagnetic block (1012) is magnetically adsorbed to the metal rod (1013); the metal rod (1013) is fixedly connected to a round tube (1014) at the top, an electromagnetic slot (1015) is provided at the right end of the bottom of the third installation box (101), and the electromagnetic slot (1015) is composed of a slide slot provided at the right end of the bottom of the third installation box (101), and three groups of electromagnetic blocks fixedly connected in the slide slot, the electromagnetic block is electrically connected to an external output device, a second sliding block (1016) is slidably connected to the slide slot in the electromagnetic slot (1015), and a control switch (1017) is fixedly connected to the top of the second sliding block (1016).

6. A supercritical foaming molding mold device according to claim 5, characterized in that: The right side of the back of the third rotating rod (48) is rotatably connected to the upper front end of the first rotating rod (46) at the lower left end of the first gear (44), and the back of the limiting plate (411) is fixedly connected to the front end of the first installation box (41).

7. A supercritical foaming molding mold device according to claim 6, characterized in that: The backs of the first gear (44) and the second gear (45) are both rotatably connected to the front end of the first installation box (41), the back of the piston cylinder (412) is fixedly connected to the front end of the first installation box (41) via a connecting rod, and the bottom of the connecting pipe (413) at the bottom of the piston cylinder (412) is fixedly connected to the top of the first mold (3).

8. A supercritical foaming molding mold device according to claim 7, characterized in that: The second connecting rod (59) passes through the first connecting rod (58) and is rotatably connected thereto, and a nozzle (513) is fixedly connected to the right end of the L-shaped rod (512) at the front end of the inner toothed plate of the first gear toothed plate member (510) at the right end of the second connecting rod (59).

9. A supercritical foaming molding mold device according to claim 8, characterized in that: The right end of the limiting frame (514) is fixedly connected to the right end inside the second installation box (52); the first connecting rod (58) passes through the limiting frame (514) and is rotatably connected to the inside thereof; the upper left end of the L-shaped fixing frame (511) is fixedly connected to the upper right end of the second installation box (52).

10. A supercritical foaming molding mold device according to claim 9, characterized in that: The control switch (1017) is electrically connected to the second motor (53), the insertion rod (1010) is plugged and fixed to the left end of the rotating roller (108), the second sliding block (1016) is magnetically attracted to the electromagnetic block in the electromagnetic slot (1015), and the first electromagnetic spring (103), the second electromagnetic spring (109) and the electromagnetic block (1012) are all electrically connected to an external current output device.

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