Double-sided flexible equipment and injection molding equipment with dynamic adjustment of mold cavity

Abstract

The present invention relates to the field of injection molding technology, and discloses a double-sided flexible device and an injection molding device with dynamic adjustment of a mold cavity. The double-sided flexible device comprises: an upper base and a lower base, which have the same structure and are symmetrically arranged; a plurality of motors, which are evenly arranged on the upper base or the lower base, and a screw linear motion mechanism connected to the motor; a limit column, which is connected to the screw linear motion mechanism, and the motor adjusts the extension of the limit column from the upper base or the lower base; when the double-sided flexible device molds a product, the motor controls the position of the limit column to drive the upper base and the lower base to move and form a molding cavity for material foaming, and the foam particles for foaming are transported to the molding cavity and are foamed to form the shape of the mold; there is no need to perform secondary or even multiple processing on the molded injection molded parts after molding. The injection molded parts formed by the above method only need simple polishing to form the final product, thereby simplifying the entire injection molded part production process.

Description

Technical Field

[0001] The invention relates to the technical field of injection molding, in particular to double-sided flexible equipment and injection molding equipment capable of dynamically adjusting a mold cavity. Background Art

[0002] Injection molding is a process in which thermoplastic or thermosetting plastics are heated and melted in an injection molding machine, injected under high pressure into a mold cavity, and then cooled to solidify. By designing and manufacturing molds, the product's shape is precisely shaped, enabling automated, mass production with high efficiency and excellent product precision and quality.

[0003] For example, the Chinese patent application with publication number CN117962226A discloses a PVC air blowing injection molding device, comprising a fixed bracket; a rotating disk and a rotating mechanism, wherein the rotating disk is rotatably mounted on the fixed bracket, and the rotating mechanism is transmission-connected to the rotating disk for driving the rotating disk to rotate; a die, wherein the die is laterally slidably mounted on the rotating disk; a punch group, wherein the punch group comprises a first punch and a second punch fixedly mounted on the fixed bracket, wherein the first punch is used to cooperate with the die for a first injection, and the second punch is used to cooperate with the die for a second injection; a pushing mechanism, wherein the pushing mechanism is used to drive the die to slide laterally on the rotating disk toward or away from the punch group after the die rotates to a position aligned with the punch group; and an air blowing heating mechanism, wherein the air blowing heating mechanism is fixedly mounted on the fixed bracket for ejecting hot air after the first injection and before the second injection to heat the product formed after the first injection.

[0004] However, there are still some problems with the above-mentioned device. In order to obtain special-shaped injection molded parts, the operator of the above-mentioned device or the traditional injection molding method will adjust the running trajectory of the processing device according to the drawing so that it can complete the preliminary processing of the injection molded parts. The operator then manually polishes the injection molded parts to complete the final product. The overall steps of this method are relatively complicated, which affects the work efficiency of the operator.

[0005] Therefore, how to improve the molding process of injection molded parts and simplify the molding process is a problem that needs to be solved at present. Summary of the Invention

[0006] The present invention provides a double-sided flexible device and an injection molding device with dynamic adjustment of the mold cavity, so as to solve the above-mentioned problems existing in the prior art.

[0007] A double-sided flexible device for dynamic adjustment of the mold cavity comprises an upper base and a lower base, which have the same structure and are symmetrically arranged;

[0008] Multiple motors, evenly arranged on the upper base or the lower base, and a screw linear motion mechanism connected to the motors;

[0009] A limiting column is connected to the screw linear motion mechanism, and the extension of the limiting column from the upper base or the lower base is adjusted by a motor;

[0010] When the double-sided flexible equipment is forming a product, the position of the limit column is controlled by the motor, driving the upper base and the lower base to move and form a forming cavity for material foaming. The foam particles for foaming are transported into the forming cavity and foamed to form the shape of the mold.

[0011] An injection molding device, which uses a double-sided flexible device with dynamic adjustment of the mold cavity to obtain a product, pre-buries the product in a sand mold, and pours molten metal into the sand mold under vacuum to form a mold with the same shape as the product model; the injection molding device includes:

[0012] A mold, comprising a fixed mold and a movable mold, wherein the mold is used to solidify the material in a mold cavity between the fixed mold and the movable mold;

[0013] The injection molding equipment also includes:

[0014] The cores are multiple and evenly arranged on the fixed mold, and are spherical in structure, and a placement cavity is opened on the cores;

[0015] A demoulding component is located in the placement cavity and is used to demould the spherical product after solidification;

[0016] The demoulding assembly includes a mounting seat located in the placement cavity, an exhaust cavity defined in the mounting seat, an adjustment portion located in the exhaust cavity, an air inlet nozzle provided on the mounting seat, and at least two annular screens sleeved on the mounting seat;

[0017] The air holes and the air inlet nozzle on the annular screen are respectively connected to the exhaust cavity; and the solidified spherical product has a certain deformation ability.

[0018] Furthermore, the adjustment portion includes an installation chamber built into the exhaust chamber, an adjustment nozzle communicated with the installation chamber, a movable block located in the installation chamber and slidably connected to the installation chamber, an adjustment spring is provided between one end of the movable block and the installation chamber, and an ejection rod connected to the movable block;

[0019] The mounting seat is further provided with a through hole, and the ejector rod passes through the through hole;

[0020] By changing the amount of gas in the installation chamber, the deformation of the adjustment spring is changed, so that the ejector rod can demould the solidified spherical product.

[0021] Furthermore, the regulating portion further comprises a distribution plate sleeved on the ejection rod and located in the exhaust cavity, a return spring is provided between one end of the distribution plate and the exhaust cavity, and a sealing block sleeved on the ejection rod;

[0022] The diameter of the sealing block is larger than the diameter of the through hole, so that the sealing block blocks the through hole, allowing the gas to be discharged from the air holes on the annular screen;

[0023] The distribution plate is also provided with a plurality of vent holes in the axial direction;

[0024] The return spring and the regulating spring are located on both sides of the distribution plate.

[0025] Furthermore, two sealing rings are symmetrically provided on the distribution plate, and a gap exists between the outer wall of the distribution plate and the inner wall of the exhaust cavity;

[0026] The mounting base includes an upper shell and a lower shell screwed to the upper shell, the distribution plate is located between the upper shell and the lower shell, and in the axial direction of the distribution plate, there is a preset gap between the distribution plate and the upper shell and the lower shell;

[0027] During the ejection process of the ejector rod, the position of the distribution plate is changed to make the gas ejected from different annular screens. When the ejector rod is at the maximum ejection position, the gas flow ejected from the annular screen is the largest, thereby deforming the spherical product and separating it from the core.

[0028] Furthermore, a trumpet-shaped outlet is provided at the outlet end of the exhaust cavity, and the movable block is trumpet-shaped, wherein the diameter corresponding to the expanded end of the movable block is larger than the diameter corresponding to the narrow end of the exhaust cavity.

[0029] In a further embodiment, an injection molding device further includes a manipulator, and a limiting assembly provided on the manipulator for limiting and clamping the produced spherical product;

[0030] The limiting assembly includes a sleeve fixedly mounted on the manipulator, two bases symmetrically arranged on the sleeve, a limiting portion connected to the base, and an elastic cover arranged on the limiting portion;

[0031] The limiting parts are symmetrically arranged, and a placement opening is provided on one side of the sleeve, and the spherical product is placed in the sleeve through the placement opening.

[0032] Furthermore, the limiting portion includes a plurality of brackets fixedly mounted on the base, a connecting rod movably connected to the brackets, a driving wheel provided at one end of the connecting rod, a movable wheel installed at the other end of the connecting rod, a plurality of rotating shafts evenly arranged on the base, a rotating plate movably connected to the rotating shafts, and a driving rod provided on the rotating plate;

[0033] The driving rod is connected to the elastic cover, and the movable wheel is in contact with the rotating plate;

[0034] By changing the position of the driving rod, the deformation of the elastic cover is changed, thereby completing the position limiting work of the spherical product and preventing the spherical product from bursting due to excessive gas blowing.

[0035] Furthermore, one of the limiting parts is provided with a telescopic cylinder, and the other limiting part is provided with a reset part, and the output end of the telescopic cylinder and one end of the reset part are connected to a drive disk;

[0036] The driving disc abuts against the driving wheel;

[0037] The limiting portion provided with the telescopic cylinder is closer to the core than the other limiting portion; and the connecting rod is an L-shaped structure.

[0038] Furthermore, the reset portion includes a fixing seat and a connecting rod respectively mounted on the driving disk and the base, the fixing seat is sleeved on the connecting rod, the connecting rod is provided with an annular protrusion, and a connecting spring for connecting the annular protrusion and the fixing seat;

[0039] A limiting seat is sleeved on the connecting rod, and the limiting seat is connected to the fixing seat.

[0040] Beneficial effect: The present invention discloses a double-sided flexible device and an injection molding device with dynamic adjustment of the mold cavity. In order to simplify the processing process of the injection molded parts, on the premise of knowing the final shape of the injection molded parts, the operator calculates the materials and shapes required for the final injection molded parts, models the injection molded parts according to their shapes, and then starts working according to the results, adjusts the positions of the limit columns, and makes a molding cavity between the upper base and the lower base. When the double-sided flexible device molds the product, the position of the limit columns is controlled by the motor to drive the upper base and the lower base to move and form a molding cavity for material foaming, and the foam particles for foaming are transported into the molding cavity, and the shape of the mold is formed after foaming, and the molded product is polished to form the final product; thus, there is no need to perform secondary or even multiple processing on the molded injection molded parts. The injection molded parts formed by the above method only need to be simply polished to form the final product, which simplifies the entire injection molded parts production process, and the shape of the injection molded parts can be changed, thereby improving the applicability of the device; at the same time, in order to complete the demoulding and collection of the products; thus, a demoulding component and a limit component are provided in the device. After the injection molding machine completes the injection molding work, the demoulding component starts to work. An external air pump is connected, and then the exhaust cavity in the mounting seat can be inflated through the provided air inlet nozzle. Then the gas can impact the axial direction of the spherical product to complete the preliminary demoulding of the spherical product. Then, the position of the distribution plate is changed by ventilating the regulating nozzle. During the ejection of the ejector rod, the flow direction of the airflow can be changed, so that the airflow can be exhausted along the radial direction of the ejector rod, and the movement of the ejector rod is coordinated to complete the demoulding of the spherical product. The limiting component can move the limiting part when the velocity of the blown air flow is too large, causing the product to be displaced significantly, or when the product is deformed significantly due to the presence of too much gas in the product, so that the protective cover is in a contracted state, thereby playing a role in limiting and wrapping the product. By squeezing the product, the gas in the product can move along the axis of the ejector rod, completing the limiting and demoulding work. Through the cooperation between the above two structures, the demoulding and limiting work of the spherical product can be completed, thereby avoiding damage to the spherical product and ensuring the smooth progress of the demoulding work. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 It is a schematic diagram of a double-sided flexible device for dynamic adjustment of a mold cavity according to the present invention;

[0042] Figure 2 is a schematic diagram of the injection molding equipment of the present invention;

[0043] Figure 3 It is a schematic diagram of the mold structure of the present invention;

[0044] Figure 4It is a schematic structural diagram of the limit assembly of the present invention;

[0045] Figure 5 2 is a schematic structural diagram of the limiting portion of the present invention;

[0046] Figure 6 is a schematic diagram of a drive disk of the present invention;

[0047] Figure 7 It is a schematic structural diagram of the reset portion of the present invention;

[0048] Figure 8 is a schematic diagram of a cross section of a demoulding assembly of the present invention;

[0049] Figure 9 2. It is a schematic diagram of the ejector rod structure of the present invention;

[0050] Figure 10 It is a schematic diagram of another cross section of the demoulding component of the present invention.

[0051] Reference numerals: 1, injection molding machine; 2, mold; 3, core; 4, manipulator; 5, limit assembly; 51, sleeve; 52, limit portion; 521, drive disc; 522, bracket; 523, connecting rod; 524, drive wheel; 525, movable wheel; 526, rotating shaft; 527, rotating plate; 528, drive rod; 53, elastic cover; 54, reset portion; 541, fixed seat; 542, connecting rod; 543, limit seat; 544 , connecting spring; 55, base; 6, demoulding assembly; 61, mounting seat; 62, adjusting nozzle; 63, adjusting part; 631, mounting chamber; 632, adjusting spring; 633, movable block; 634, distribution plate; 635, sealing block; 636, sealing ring; 637, reset spring; 64, air inlet nozzle; 65, exhaust chamber; 66, ejector rod; 67, annular screen; 7, upper base; 8, lower base; 9, motor; 10, limit column. DETAILED DESCRIPTION

[0052] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0053] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0054] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it constitute a separate or selective embodiment that is mutually exclusive with other embodiments.

[0055] The present invention discloses a double-sided flexible equipment machine and injection molding equipment with dynamic adjustment of mold cavity, referring to Figures 1-10 ,include:

[0056] The double-sided flexible equipment with dynamic adjustment of the mold cavity includes an upper base 7 and a lower base 8, which have the same structure and are symmetrically arranged; there are multiple motors 9, which are evenly arranged on the upper base 7 or the lower base 8, and a screw linear motion mechanism connected to the motor 9; a limit column 10 is connected to the screw linear motion mechanism, and the extension of the limit column 10 from the upper base 7 or the lower base 8 is adjusted by the motor 9; when working, the material and shape required for the product are calculated and modeled, and each motor 9 is started to work according to the result, and the position of the limit column 10 is adjusted to form a molding cavity between the upper base 7 and the lower base 8. When the double-sided flexible equipment is molding the product, the position of the limit column 10 is controlled by the motor 9, which drives the upper base 7 and the lower base 8 to move and form a molding cavity for material foaming, The foam particles used for foaming are transported to the molding cavity, foamed to form the shape of the mold, and the molded product is polished to form the final product; on the premise of knowing the shape of the final injection-molded part, the operator calculates the materials and shape required for the final injection-molded part, models the injection-molded part according to its shape, and then starts working each motor 9 according to the result, adjusts the position of the limit column 10, so that there is a molding cavity between the upper base 7 and the lower base 8, and injects molding into it and polishes the molded product to form the final product; thus, there is no need to perform secondary or even multiple processing on the molded injection-molded part. The injection-molded part formed by the above method only needs simple polishing to form the final product, which simplifies the entire injection-molded part production process, and the shape of the injection-molded part can be changed, thereby improving the applicability of the device.

[0057] An injection molding device, comprising: a mold 2, comprising a fixed mold and a movable mold, wherein the mold 2 is used to solidify a material in a mold cavity of the fixed mold and the movable mold; a core 3, which is a spherical structure and is evenly arranged on the fixed mold, and has a placement cavity; a demoulding component 6, located in the placement cavity, and used to demould the solidified spherical product; the demoulding component 6 includes a mounting seat 61 located in the placement cavity, an exhaust cavity 65 is opened in the mounting seat 61, an adjusting portion 63 located in the exhaust cavity 65, an air inlet nozzle 64 provided on the mounting seat 61, and at least two annular screens 67 sleeved on the mounting seat 61; wherein the annular screen 6 The air holes and air inlet nozzle 64 on 7 are respectively connected to the exhaust cavity 65; through the setting of the limiting component 5, when the flow rate of the blown air flow is too large and causes a large displacement of the product or when the product is greatly deformed due to the presence of more gas in the product, the limiting part 52 can be moved, so that the protective cover is in a contracted state, thereby playing a role in limiting and wrapping the product, and by squeezing the product, the gas in the product can move along the axis direction of the ejector rod 66, completing the limiting and demoulding work. Through the cooperation between the above two structures, the demoulding and limiting work of the spherical product can be completed, thereby avoiding damage to the spherical product and ensuring the smooth progress of the demoulding work.

[0058] The adjusting portion 63 includes an installation chamber 631 built into the exhaust chamber 65, an adjusting nozzle 62 communicated with the installation chamber 631, a movable block 633 located in the installation chamber 631 and slidably connected to the installation chamber 631, an adjusting spring 632 is provided between one end of the movable block 633 and the installation chamber 631, and an ejection rod 66 connected to the movable block 633; a through hole is also provided on the installation seat 61, and the ejection rod 66 passes through the through hole; by changing the amount of gas in the installation chamber 631, the deformation of the adjusting spring 632 is changed, so that the ejection rod 66 demolds the solidified spherical product; the adjusting portion 63 also includes a distribution plate 634 which is sleeved on the ejection rod 66 and located in the exhaust chamber 65, and a return spring 63 is provided between one end of the distribution plate 634 and the exhaust chamber 65 7, and a sealing block 635 sleeved on the ejector rod 66; the diameter of the sealing block 635 is larger than the diameter of the through hole, so that the sealing block 635 blocks the through hole, so that the gas can be discharged from the air holes on the annular screen 67; the distribution plate 634 is also provided with a plurality of vents in the axial direction; after the injection molding machine 1 completes the injection molding work, the demoulding assembly 6 starts to work at this time, and the air inlet nozzle 64 can inflate the exhaust cavity 65 in the mounting seat 61 through the external air pump, and then the gas can impact the axial direction of the spherical product to complete the preliminary demoulding work of the spherical product, and then ventilate the adjusting nozzle 62 to change the position of the distribution plate 634. As the distribution plate 634 moves, the ejector rod 66 can also perform the ejection work, thereby completing the ejection and demoulding work of the spherical product or products of other shapes.

[0059] Two sealing rings 636 are symmetrically provided on the distribution plate 634, and there is a certain gap between the outer wall of the distribution plate 634 and the inner wall of the exhaust chamber 65; the mounting seat 61 includes an upper shell and a lower shell screwed to the upper shell, and the distribution plate 634 is located between the upper shell and the lower shell, and in the axial direction of the distribution plate 634, there is a certain gap between the distribution plate 634 and the upper shell and the lower shell; in the process of ejection of the ejector rod 66, by changing the position of the distribution plate 634, the gas is ejected from different annular screens 67. When the ejector rod 66 is in the maximum ejection position, the gas flow ejected from the annular screen 67 is the largest, thereby deforming the spherical product and causing it to detach from the core 3; as the distribution plate 634 moves, the distribution plate 634 is close to the core 3. The gap between the sealing ring 636 near one end of the through hole and the lower shell becomes smaller, so the airflow in the annular screen 67 near one end of the through hole changes from large to small, while the airflow through the other annular screen 67 gradually becomes larger, so that the axial movement of the airflow can be achieved. In this process, the ejector rod 66 can also perform the ejection work. When the ejector rod 66 is displaced to the farthest distance, the sealing block 635 abuts against the through hole, thereby increasing the amount of air discharged from the annular screen 67 and cooperating with the work of the ejector rod 66 to complete the demoulding of the product; at the same time, by adjusting the blowing position and size of the gas and the product, the airflow at the position of the product bottle mouth becomes larger during demoulding, thereby avoiding the product neck and the core 3 from fitting too closely, and increasing the demoulding strength to ensure the smooth progress of the demoulding work.

[0060] The exhaust chamber 65 has a trumpet-shaped outlet at its outlet end, and the movable block 633 is trumpet-shaped, wherein the diameter corresponding to the expanded end of the movable block 633 is larger than the diameter corresponding to the narrow end of the exhaust chamber 65; through the above-mentioned structure, the movable block 633 can be moved in the installation chamber 631, and the movable block 633 will not separate from the installation chamber 631, thereby ensuring the stability of the device.

[0061] An injection molding device also includes a manipulator 4 arranged on the injection molding machine 1, and a limiting assembly 5 arranged on the manipulator 4 for limiting and clamping the spherical product produced by the cavity of the mold 2; the limiting assembly 5 includes a sleeve 51 fixedly mounted on the manipulator 4, two bases 55 symmetrically arranged on the sleeve 51, a limiting portion 52 connected to the base 55, and an elastic cover 53 arranged on the limiting portion 52; the limiting portions 52 are symmetrically arranged, and a placement port is provided on one side of the sleeve 51, and the spherical product is located in the sleeve 51 through the placement port; the limiting portion 52 includes a plurality of brackets 522 fixedly mounted on the base 55, a connecting rod 523 movably connected to the bracket 522, and a setting A driving wheel 524 is provided at one end of the connecting rod 523, a movable wheel 525 is installed at the other end of the connecting rod 523, a plurality of rotating shafts 526 are evenly arranged on the base 55, a rotating plate 527 movably connected to the rotating shaft 526, and a driving rod 528 is provided on the rotating plate 527; the driving rod 528 is connected to the elastic cover 53, and the movable wheel 525 abuts against the rotating plate 527; by changing the position of the driving rod 528, the deformation of the elastic cover 53 is changed, thereby completing the position limiting work of the spherical product and preventing the spherical product from being exploded due to excessive gas blowing; torsion springs are provided between the rotating shaft 526 and the rotating plate 527 and between the bracket 522 and the connecting rod 523 to ensure the stability of the device;

[0062] During the demoulding process, gas is injected into the product, causing the product to deform. The deformed product will abut against the driving disc 521 connected to the reset portion 54, thereby enabling the driving disc 521 to move. The moving driving disc 521 can drive the driving wheel 524 to move, thereby causing the connecting rod 523 to rotate on the bracket 522, thereby driving the movable wheel 525 to move. Since the movable wheel 525 abuts against the rotating plate 527, the rotating plate 527 drives the driving rod 528 to move, thereby causing the elastic cover 53 to be in a contracted state, thereby completing the limiting work of the spherical product and preventing its deformation from being too large, which may cause the spherical product to be blown up. At the same time, the contraction of the elastic cover 53 can also squeeze the spherical product, and the gas in the spherical product can move from the main body of the spherical product to the neck part and be discharged. In this process, the neck part of the product can be demoulded for the second time to complete the demoulding work. At this time, the driving disc 521 returns to its initial position.

[0063] One of the limiting parts 52 is provided with a telescopic cylinder, and the other limiting part 52 is provided with a reset part 54. The output end of the telescopic cylinder and one end of the reset part 54 are connected to a driving disk 521; the driving disk 521 abuts against the driving wheel 524; the limiting part 52 provided with the telescopic cylinder is closer to the core 3 than the other limiting part 52; the reset part 54 includes a fixing seat 541 and a connecting rod 542 respectively mounted on the driving disk 521 and the base 55, and the fixing seat 541 is sleeved on the connecting rod 542. The connecting rod 542 is provided with an annular protrusion and a connecting spring 544 for connecting the annular protrusion and the fixed seat 541; the connecting rod 542 is also provided with a limit seat 543, and the limit seat 543 is connected to the fixed seat 541; during the movement of the driving disk 521, relative displacement will occur between the fixed seat 541 and the connecting rod 542, so that when the spherical product returns to its initial state, the driving disk 521 can be located in the initial position under the action of the connecting spring 544, ensuring the next operation.

[0064] When the driving disk 521 is located at the initial position, a predetermined gap exists between one end of the distribution disk 634 close to the through hole and the lower shell, and the sealing ring 636 on the other end of the distribution disk 634 abuts against the upper shell.

[0065] The device is further provided with an injection molding machine 1, on which the mold 2 is located. The injection molding machine 1 is a prior art. In a further embodiment, the mold 2 is formed Figure 8 and Figure 10 The cross section used in the schematic diagram is divided into a first cross section and a second cross section, wherein there is a predetermined angle between the first cross section and the second cross section, and the second cross section passes through the air inlet nozzle 64 and cuts the air inlet nozzle 64 into two parts of the same shape;

[0066] Working principle description: After the injection molding machine 1 completes the injection molding work, the demolding assembly 6 starts to work. Through the external air pump, the air inlet nozzle 64 can inflate the exhaust chamber 65 in the mounting seat 61. Then the gas can impact the spherical product in the axial direction, completing the preliminary demolding of the spherical product. Then, by ventilating to the regulating nozzle 62, the position of the distribution plate 634 is changed. As the distribution plate 634 moves, the gap between the sealing ring 636 near one end of the through hole of the distribution plate 634 and the lower shell becomes smaller. Therefore, the airflow in the annular screen 67 near one end of the through hole changes from large to small, while the airflow through the other annular screen 67 gradually increases. Therefore, the axial movement of the airflow and the change of the airflow volume can be achieved. During this process, the ejector rod 66 can also perform the ejection work. When the ejector rod 66 moves to the farthest distance, the sealing block 635 abuts against the through hole, thereby increasing the airflow discharged from the annular screen 67 and cooperating with the work of the ejector rod 66 to complete the demolding of the product.

[0067] During the demoulding process, gas is injected into the product, causing the product to deform. The deformed product abuts against the driving disc 521 connected to the reset portion 54, thereby enabling the driving disc 521 to move. The moving driving disc 521 can drive the driving wheel 524 to move, thereby causing the connecting rod 523 to rotate on the bracket 522, thereby driving the movable wheel 525 to move. Since the movable wheel 525 abuts against the rotating plate 527, the rotating plate 527 drives the driving rod 528 to move, thereby causing the elastic cover 53 to be in a contracted state, thereby completing the position limiting work of the spherical product and preventing the spherical product from being blown up due to excessive deformation. At the same time, the contraction of the elastic cover 53 can also squeeze the spherical product, and the gas in the spherical product can move from the main body of the spherical product to the neck part and be discharged. In this process, the neck part of the product can be demoulded for the second time to complete the demoulding work. At this time, the driving disc 521 returns to its initial position.

[0068] After the demoulding work is completed, the telescopic cylinder starts to work, which can drive the other limiting part 52 to start working, so that the elastic cover 53 in the limiting part 52 shrinks, makes it abut against the spherical product, and clamps it, and then completes the transportation work with the cooperation of the robot 4. The protective cover is provided to play a flexible protection effect to avoid damage to the product.

[0069] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, various equivalent transformations can be made to the technical solutions of the present invention, and these equivalent transformations all fall within the scope of protection of the present invention.

Claims

1. An injection molding device for preparing a mold with a double-sided flexible device with dynamic adjustment of the mold cavity, characterized in that: include: Double-sided flexible equipment with dynamic adjustment of mold cavity: The upper base (7) and the lower base (8) have the same structure and are symmetrically arranged; A plurality of motors (9) are evenly arranged on the upper base (7) or the lower base (8), and a screw linear motion mechanism connected to the motors (9); A limit column (10) is connected to the screw linear motion mechanism, and the extension of the limit column (10) from the upper base (7) or the lower base (8) is adjusted by a motor (9); When the double-sided flexible device is molding a product, the position of the limit column (10) is controlled by the motor (9), driving the upper base (7) and the lower base (8) to move and form a molding cavity for foaming the material, and the foam particles for foaming are transported into the molding cavity and foamed to form the shape of the mold; The injection molding equipment includes a product obtained by using a double-sided flexible device with dynamic adjustment of the mold cavity, and pre-embedding the product in a sand mold, pouring molten metal into the sand mold under a vacuum state to form a mold (2) with the same shape as the product model; The mold (2) comprises a fixed mold and a movable mold, and the mold (2) is used to solidify the material in the mold cavity between the fixed mold and the movable mold; The injection molding equipment further comprises: a core (3), which is a spherical structure and is evenly arranged on the fixed mold, and a placement cavity is opened on the core (3); A demoulding component (6), located in the placement cavity, is used to demould the solidified spherical product; The demoulding assembly (6) includes a mounting seat (61) located in the placement cavity, an exhaust cavity (65) formed in the mounting seat (61), an adjustment portion (63) located in the exhaust cavity (65), an air inlet nozzle (64) provided on the mounting seat (61), and at least two annular screens (67) sleeved on the mounting seat (61); The air holes and the air inlet nozzle (64) on the annular screen (67) are respectively connected to the exhaust cavity (65); The regulating portion (63) includes a mounting chamber (631) built into the exhaust cavity (65), a regulating nozzle (62) communicated with the mounting chamber (631), a movable block (633) located in the mounting chamber (631) and slidably connected to the mounting chamber (631), an regulating spring (632) provided between one end of the movable block (633) and the mounting chamber (631), and an ejection rod (66) connected to the movable block (633); The mounting seat (61) is further provided with a through hole, and the ejection rod (66) passes through the through hole; By changing the amount of gas in the installation chamber (631), the deformation of the adjustment spring (632) is changed, so that the ejector rod (66) can demould the solidified spherical product; The regulating portion (63) further includes a distribution plate (634) sleeved on the ejection rod (66) and located in the exhaust cavity (65), a return spring (637) is provided between one end of the distribution plate (634) and the exhaust cavity (65), and a sealing block (635) sleeved on the ejection rod (66); The diameter of the sealing block (635) is larger than the diameter of the through hole, so that the sealing block (635) blocks the through hole, allowing the gas to be discharged from the air holes on the annular screen (67); The distribution plate (634) is also provided with a plurality of ventilation holes in the axial direction.

2. The injection molding equipment for preparing molds using a double-sided flexible device with dynamic mold cavity adjustment according to claim 1, characterized in that: Two sealing rings (636) are symmetrically provided on the distribution plate (634), and a gap exists between the outer wall of the distribution plate (634) and the inner wall of the exhaust cavity (65); The mounting seat (61) comprises an upper shell and a lower shell screwed to the upper shell, the distribution plate (634) is located between the upper shell and the lower shell, and in the axial direction of the distribution plate (634), there is a preset gap between the distribution plate (634) and the upper shell and the lower shell; During the ejection process of the ejector rod (66), the position of the distribution plate (634) is changed so that the gas is ejected from different annular screens (67). When the ejector rod (66) is at the maximum ejection position, the amount of gas ejected from the annular screen (67) is the largest, thereby deforming the spherical product and causing it to detach from the core (3).

3. The injection molding equipment for preparing molds using a double-sided flexible device with dynamic mold cavity adjustment according to claim 2, characterized in that: The exhaust cavity (65) has a trumpet-shaped outlet at the outlet end, and the movable block (633) is trumpet-shaped, wherein the diameter corresponding to the expanded end of the movable block (633) is larger than the diameter corresponding to the narrow end of the exhaust cavity (65).

4. The injection molding equipment for preparing molds using a double-sided flexible device with dynamic mold cavity adjustment according to claim 3, characterized in that: It also includes a manipulator (4) and a limiting assembly (5) provided on the manipulator (4) for performing limiting clamping work on the produced spherical product; The limiting assembly (5) comprises a sleeve (51) fixedly mounted on the manipulator (4), two bases (55) symmetrically arranged on the sleeve (51), a limiting portion (52) connected to the bases (55), and an elastic cover (53) arranged on the limiting portion (52); The limiting portions (52) are symmetrically arranged, and a placement opening is provided on one side of the sleeve (51), and the spherical product is positioned in the sleeve (51) through the placement opening.

5. The injection molding equipment for preparing molds using a double-sided flexible device with dynamic mold cavity adjustment according to claim 4, characterized in that: The limiting portion (52) includes a plurality of brackets (522) fixedly mounted on the base (55), a connecting rod (523) movably connected to the brackets (522), a driving wheel (524) provided at one end of the connecting rod (523), a movable wheel (525) installed at the other end of the connecting rod (523), a plurality of rotating shafts (526) uniformly arranged on the base (55), a rotating plate (527) movably connected to the rotating shafts (526), and a driving rod (528) provided on the rotating plate (527); The driving rod (528) is connected to the elastic cover (53), and the movable wheel (525) is in contact with the rotating plate (527); By changing the position of the driving rod (528), the deformation of the elastic cover (53) is changed, thereby completing the position limiting work of the spherical product.

6. The injection molding equipment for preparing molds using a double-sided flexible device with dynamic mold cavity adjustment according to claim 5, characterized in that: One of the limiting parts (52) is provided with a telescopic cylinder, and the other limiting part (52) is provided with a reset part (54), and the output end of the telescopic cylinder and one end of the reset part (54) are connected to a drive disk (521); The driving disc (521) abuts against the driving wheel (524); The limiting portion (52) provided with the telescopic cylinder is closer to the core (3) than the other limiting portion (52).

7. The injection molding equipment for preparing molds using a double-sided flexible device with dynamic mold cavity adjustment according to claim 6, characterized in that: The reset portion (54) comprises a fixing seat (541) and a connecting rod (542) respectively mounted on the driving disk (521) and the base (55); the fixing seat (541) is sleeved on the connecting rod (542); the connecting rod (542) is provided with an annular protrusion, and a connecting spring (544) for connecting the annular protrusion and the fixing seat (541); The connecting rod (542) is also sleeved with a limiting seat (543), and the limiting seat (543) is connected to the fixing seat (541).

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