Injection mold for plastic packaging product production and injection molding method thereof

Abstract

The invention relates to the technical field of plastic product processing, and discloses an injection mold for plastic packaging product production and an injection molding method thereof.The injection mold comprises a working shell, a telescopic rod is fixedly connected to one side of the working shell, an injection molding plate is fixedly connected to the movable end of the telescopic rod, and spring seats are fixedly connected to the periphery of the side, away from the telescopic rod, of the injection molding plate; an inner mold shell is fixedly connected to the end, away from the injection molding plate, of the spring seat, the injection molding water cooling mechanism comprises a plurality of transverse rods fixedly connected to the periphery of the side, close to the spring seat, of the injection molding plate, a telescopic rod is started, the telescopic rod drives the injection molding plate to move, and the injection molding plate drives the spring seat to move; the spring seat drives the inner mold shell to move, the inner mold shell and the outer mold shell are in butt joint, then molten plastic liquid is conveyed to the position between the inner mold shell and the outer mold shell through the injection molding pipe, injection molding is conducted on the mold, and in the process, water cooling treatment is conducted on the mold in the injection molding process through cold water in the outer mold shell.

Description

Technical Field

[0001] The invention relates to the technical field of plastic product processing, in particular to an injection mold for producing plastic packaging products and an injection molding method thereof. Background Art

[0002] The injection mold used in the production of plastic packaging products is a mold used to process plastic materials on an injection molding machine to manufacture various plastic packaging products. This mold usually consists of two parts, one of which is fixed on the fixed plate of the injection molding machine, and the other is fixed on the dynamic plate of the injection molding machine. When the mold fixture is combined, a closed cavity is formed, and the plastic material is injected into this cavity. After heating and pressure, the plastic material solidifies and forms a plastic packaging product.

[0003] In the prior art, cold water needs to be injected into the interior of the mold shell to perform water cooling on the mold being injected. However, when the cold water exists inside the mold shell, it is generally in a static state, so that only the cold water close to the injection mold can cool the mold, making it impossible for the water flow to cool the mold evenly, thereby affecting the product quality of the mold. Summary of the invention

[0004] The object of the present invention is to provide an injection mold and an injection molding method for producing plastic packaging products to solve the problems raised in the above background technology.

[0005] To solve the above technical problems, the present invention is achieved through the following technical solutions: The present invention relates to an injection mold for producing plastic packaging products and an injection molding method thereof, comprising a working shell, one side of the working shell is fixedly connected with a telescopic rod, the movable end of the telescopic rod is fixedly connected with an injection molding plate, the injection molding plate is fixedly connected with spring seats on the four sides of a side away from the telescopic rod, the end of the spring seat away from the injection molding plate is fixedly connected with an inner mold shell, and also comprises an injection molding water cooling mechanism, the injection molding water cooling mechanism comprises a plurality of cross bars fixedly connected to the four sides of a side of the injection molding plate close to the spring seat, one end of the cross bar penetrates the inner mold shell and extends to the outside of the inner mold shell, one side of the working shell is fixedly connected with a round shell, the side of the round shell away from the working shell is fixedly connected with an outer mold shell, the side of the working shell close to the round shell is connected with an injection molding tube, one end of the injection molding tube penetrates the round shell and is connected to the inside of the outer mold shell, and a telescopic component is arranged on the inner wall of the round shell.

[0006] Furthermore, the telescopic assembly includes a heat expansion medium shell fixedly connected to the inner cavity of the circular shell, and a plurality of sliding rods are slidably connected to the inner wall of the heat expansion medium shell. One end of the sliding rod passes through the circular shell and extends to the outside of the circular shell. One end of the sliding rod is fixedly connected to a first elastic rope, and one end of the first elastic rope passes through the outer mold shell and extends to the inside of the outer mold shell. The outer wall of the first elastic rope is slidably connected to a sealing ring.

[0007] Furthermore, one side of the sealing ring is fixedly connected to the outer wall of the outer mold shell, one end of the first elastic rope away from the sliding rod is fixedly connected to an annular plate, a side of the annular plate close to the first elastic rope is fixedly connected to a plurality of telescopic springs, one end of the telescopic spring is fixedly connected to the bottom of the inner cavity of the outer mold shell, and a plurality of first rotating plates are rotatably connected to the inner wall of the annular plate.

[0008] Furthermore, a moving assembly is provided at one end of the first rotating plate, and the moving assembly includes a second rotating plate rotatably connected to an end of the first rotating plate away from the annular plate, one end of the second rotating plate is rotatably connected to a sliding block, one side of the sliding block is fixedly connected to an arc spring, one end of the arc spring away from the sliding block is fixedly connected to one side of the second rotating plate, and the outer wall of the sliding block is slidably connected to a cross groove plate.

[0009] Furthermore, the bottom of the cross-slot plate is fixedly connected to the bottom of the inner cavity of the outer mold shell, the side of the sliding rod away from the first elastic rope is fixedly connected to the second elastic rope, one side of the inner wall of the cross-slot plate is fixedly connected to the limiting shell, four limiting shells are provided, one end of the second elastic rope passes through the circular shell and extends to the interior of the limiting shell, one end of the second elastic rope away from the sliding rod is fixedly connected to one side of the sliding block, and the two sides of the second rotating plate are respectively fixedly connected to the arc shell, and vertical grooves are respectively provided at both ends of one side of the arc shell.

[0010] Furthermore, a stirring assembly is provided inside the arc-shaped shell, and the stirring assembly includes a semicircular tube fixedly connected to the bottom of the inner wall of the arc-shaped shell, the outer walls of the semicircular tube are opened on both sides, a semicircular block is slidably connected to the top of the inner wall of the semicircular tube, spherical rods are respectively fixedly connected on both sides of the semicircular block, and a pull rope is fixedly connected to the bottom of the semicircular block.

[0011] Furthermore, one end of the pull rope passes through the semicircular tube and extends to the interior of the outer mold shell, one end of the pull rope is slidably connected to a limit rod on the outer wall, one end of the limit rod is fixedly connected to the bottom of the inner wall of the outer mold shell, one end of the pull rope away from the semicircular block is fixedly connected to an arc block, one side of the arc block is fixedly connected to the outer wall of the cross groove plate, the inner wall of the vertical groove is slidably connected to a plurality of lifting plates, one side of the lifting plate is fixedly connected to a scraper, and a return spring is fixedly connected between the two lifting plates.

[0012] Furthermore, an arc tube is fixedly connected to one side of the arc shell, a double-headed rod is slidably connected between the two arc tubes, a stirring plate is fixedly connected to the outer wall of the middle end of the double-headed rod, a triangular block passes through and is slidably connected to one side of the outer wall of the arc tube, an impact rod is fixedly connected to one end of the triangular block, a pull rope spring is fixedly connected to one side of the impact rod, and one end of the pull rope spring is fixedly connected to the outer wall of the arc tube.

[0013] Furthermore, an auxiliary component is provided on the outer wall of the outer mold shell, and the auxiliary component includes a plurality of connecting shells fixedly connected to the outer wall of the outer mold shell around, the inner wall of the connecting shell is slidably connected to a sliding plate, one side of the sliding plate is fixedly connected to a rubber rope, one end of the rubber rope passes through the connecting shell and extends to the outside of the connecting shell, one end of the rubber rope away from the sliding plate is fixedly connected to the outer wall of one end of the first elastic rope, one side of the inner wall of the connecting shell is fixedly connected to a fixing rod, one side of the connecting shell is connected to a round tube, one end of the round tube is connected to the interior of the outer mold shell, the outer wall of one end of the fixing rod is rotatably connected to a spiral sheet, the spiral sheet is arranged inside the round tube, one end of the spiral sheet is fixedly connected to a stirring blade sleeve, and the stirring blade sleeve is arranged inside the outer mold shell.

[0014] An injection mold for producing plastic packaging products and an injection molding method thereof, the injection molding method for producing plastic packaging products comprises the following steps: Step 1: Start the telescopic rod, the telescopic rod drives the injection molding plate to move, the injection molding plate drives the spring seat to move, the spring seat drives the inner mold shell to move, so that the inner mold shell and the outer mold shell are docked, and then the melted plastic liquid is transported to the space between the inner mold shell and the outer mold shell through the injection molding tube. When the plastic liquid with a higher temperature passes through the injection molding tube, the heat is transferred to the heat expansion medium shell in the round shell, so that the heat expansion medium in the heat expansion medium shell expands. During the expansion of the heat expansion medium, the sliding rod in the heat expansion medium shell is pushed to move. During the movement of the sliding rod, the first elastic rope is stretched, the first elastic rope drives the annular plate to move inside the outer mold shell, the annular plate drives the first rotating plate to move, the first rotating plate drives the second rotating plate to move, and is limited by the cross groove plate. The second rotating plate drives the sliding block to move inside the cross groove plate, and the second rotating plate drives the arc shell to move; Step 2: When the second rotating plate moves to the inner wall of the outer mold shell, the inner wall of the outer mold shell is inclined, so that the second rotating plate rotates and fits with the outer mold shell, and is blocked by the limiting rod. During the movement of the arc shell following the second rotating plate, the pull rope is stretched, and the pull rope drives the semicircular block inside the semicircular tube to move downward, and the semicircular block drives the spherical rod to move downward. During the downward movement of the outer mold shell, it contacts the lifting plate, so that the lifting plate drives the scraper to move downward under the limit of the vertical groove. Because the second rotating plate is in a fit state with the outer mold shell at this time, when the sliding rod moves, the sliding rod drives the second elastic rope to move, so that the second elastic rope is stretched, so that the second elastic rope drives the sliding block to move inside the cross groove plate; Step 3: When the arc shell is moving, the arc shell drives the arc tube to move, the arc tube drives the double-headed rod to move, the double-headed rod drives the stirring plate to move, and when the arc tube drives the double-headed rod to move, the two arc tubes will approach each other, so that the double-headed rod will move inside the arc tube, and when the double-headed rod moves, it will contact the triangular block, so that the triangular block moves, and the triangular block drives the impact rod to move, and the impact rod will contact the inner wall of the outer mold shell during the movement; Step 4: When the inner mold shell contacts the outer mold shell, the reaction force of the outer mold shell causes the inner mold shell and the injection molding plate to gradually approach each other. In the process of the inner mold shell and the injection molding plate approaching each other, the cross bar will move. During the movement, the cross bar will squeeze the sliding plate, causing the sliding plate to move inside the connecting shell. During the movement of the sliding plate, the rubber rope will be moved to stretch the rubber rope, and the rubber rope will drive the first elastic rope to move. During the movement of the sliding plate, the water flow inside the connecting shell will be pushed into the inner part of the outer mold shell through the circular tube. When the water flow passes through the circular tube, the spiral blade will rotate, and the spiral blade will drive the stirring blade sleeve to rotate.

[0015] The present invention has the following beneficial effects: In the present invention, the telescopic rod is started, the telescopic rod drives the injection molding plate to move, the injection molding plate drives the spring seat to move, the spring seat drives the inner mold shell to move, so that the inner mold shell and the outer mold shell are docked, and then the melted plastic liquid is transported to between the inner mold shell and the outer mold shell through the injection molding tube to perform injection molding. In this process, the mold in the injection molding is water-cooled by the cold water in the outer mold shell. When the plastic liquid with a higher temperature passes through the injection molding tube, the heat is transferred to the heat expansion medium shell in the round shell, so that the heat expansion medium in the heat expansion medium shell expands, and the heat expansion medium promotes the heat expansion during the expansion process. The sliding rod in the expansion medium shell moves, and the first elastic rope is stretched during the movement of the sliding rod. The first elastic rope drives the annular plate to move inside the outer mold shell, and the annular plate drives the first rotating plate to move. The first rotating plate drives the second rotating plate to move. The second rotating plate is limited by the cross groove plate, and the second rotating plate drives the sliding block to move inside the cross groove plate. The second rotating plate drives the arc shell to move, thereby pushing the water inside the outer mold shell, so that the water circulates inside the outer mold shell, preventing the water from being in a static state all the time, enhancing the water cooling effect, and enhancing the quality of mold injection.

[0016] (2) In the present invention, when the second rotating plate moves to the inner wall of the outer mold shell, the inner wall of the outer mold shell is inclined, so that the second rotating plate rotates and fits with the outer mold shell, and is blocked by the limit rod. During the movement of the arc shell following the second rotating plate, the pull rope is stretched, and the pull rope drives the semicircular block inside the semicircular tube to move downward, and the semicircular block drives the spherical rod to move downward. During the downward movement of the outer mold shell, it contacts the lifting plate, so that the lifting plate drives the scraper to move downward under the limit of the vertical groove. Because at this time, the second rotating plate is in a fit state with the outer mold shell. When the scraper falls, it will further stir the water on the inner wall of the outer mold shell, so that the water on the inner wall of the outer mold shell can be in motion all the time, thereby further enhancing the quality of the mold during injection molding and preventing the mold from deforming or warping. When the sliding rod moves, the sliding rod drives the second elastic rope to move, so that the second elastic rope is stretched, so that the second elastic rope drives the sliding block to move inside the cross groove plate, thereby enhancing the stability of the sliding block movement, preventing the device from getting stuck during operation, and enhancing the water cooling effect inside the outer mold shell from the side.

[0017] (3) In the present invention, when the arc shell is moving, the arc shell drives the arc tube to move, the arc tube drives the double-headed rod to move, the double-headed rod drives the stirring plate to move, and the stirring plate stirs the water flow inside the outer mold shell during the movement, further enhancing the movement state of the water flow, and when the arc tube drives the double-headed rod to move, the two arc tubes will approach each other, so that the double-headed rod will move inside the arc tube, and when the double-headed rod is moving, it will contact the triangular block, thereby moving the triangular block, and the triangular block drives the impact rod to move, and the impact rod will contact the inner wall of the outer mold shell during the movement, thereby impacting the inner wall of the outer mold shell, further preventing the mold from adhering to the inner wall of the outer mold shell, thereby improving the quality of mold injection.

[0018] (4) According to the present invention, when the inner mold shell contacts the outer mold shell, the inner mold shell and the injection molding plate gradually approach each other due to the reaction force of the outer mold shell. During the process of the inner mold shell and the injection molding plate approaching each other, the cross bar moves. During the movement, the cross bar squeezes the sliding plate, causing the sliding plate to move inside the connecting shell. During the movement of the sliding plate, the rubber rope is driven to move, causing the rubber rope to stretch. The rubber rope drives the first elastic rope to move, thereby tightening the first elastic rope, making the movement state of the annular plate more stable, and improving the water cooling effect of the device from the side. During the movement of the sliding plate, the water flow inside the connecting shell is pushed into the outer mold shell through the circular tube. The generated water pressure can further disrupt the movement state of the water flow inside the outer mold shell. When the water flow passes through the circular tube, the spiral blade rotates. The spiral blade drives the stirring blade sleeve to rotate. During the rotation, the stirring blade sleeve stirs the water flow inside the outer mold shell, thereby improving the flow of cold water inside the outer mold shell and enhancing the water cooling effect of the outer mold shell.

[0019] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0021] Figure 1 It is a schematic diagram of the overall top view structure of the present invention; Figure 2 It is a schematic diagram of a partial half-section structure of the present invention; Figure 3 This is a schematic diagram of the cross-sectional structure of the injection molding tube of the present invention; Figure 4 This is a schematic diagram of the outer mold shell structure of the present invention; Figure 5 This is a schematic diagram of the cross-sectional structure of the sliding rod of the present invention; Figure 6 This is a schematic diagram of the side structure of the arc-shaped shell of the present invention; Figure 7 This is a schematic diagram of the cross-sectional structure of the pull rope of the present invention; Figure 8 This is a schematic diagram of the semicircular tube explosion structure of the present invention; Fig. 9 This is a schematic diagram of the explosion structure of the stirring plate of the present invention; Fig.10 This is a schematic diagram of the cross-sectional structure of the connecting shell of the present invention; Fig.11For the present invention Figure 5 A magnified view of middle; Fig.12 It is a schematic flow chart of the injection molding method of the present invention.

[0022] In the accompanying drawings, the components represented by the reference numerals are listed as follows: In the figure: 1, working shell; 2, telescopic rod; 3, injection molding plate; 4, spring seat; 5, inner mold shell; 6, injection molding water cooling mechanism; 61, cross bar; 62, round shell; 63, outer mold shell; 64, injection molding tube; 65, telescopic assembly; 66, moving assembly; 67, stirring assembly; 68, auxiliary assembly; 651, thermal expansion medium shell; 652, sliding rod; 653, first elastic rope; 654, sealing ring; 655, annular plate; 656, telescopic spring; 657, first rotating plate; 661, second rotating plate; 662, sliding block; 663, arc spring; 664, cross groove plate; 665, second Elastic rope; 666, limit shell; 667, arc shell; 668, vertical groove; 671, semicircular tube; 672, semicircular block; 673, spherical rod; 674, pull rope; 675, limit rod; 676 arc block; 677, lifting plate; 678, scraper; 679, return spring; 6710, arc tube; 6711, double-headed rod; 6712, stirring plate; 6713, triangular block; 6714, impact rod; 6715, pull rope spring; 681, connecting shell; 682, sliding plate; 683, rubber rope; 684, fixing rod; 685, round tube; 686, spiral blade; 687, stirring blade sleeve. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] Example 1, please refer to Figure 1-Figure 12 As shown, the present invention is an injection mold for producing plastic packaging products and an injection molding method thereof, comprising a working shell 1, a telescopic rod 2 is fixedly connected to one side of the working shell 1, an injection molding plate 3 is fixedly connected to the movable end of the telescopic rod 2, spring seats 4 are fixedly connected to the injection molding plate 3 on one side away from the telescopic rod 2, and an inner mold shell 5 is fixedly connected to one end of the spring seat 4 away from the injection molding plate 3. The purpose of such a configuration is to have cold water inside for water cooling, and also includes; The injection molding water cooling mechanism 6 includes a plurality of cross bars 61 fixedly connected around the injection molding plate 3 near the spring seat 4. One end of the cross bar 61 passes through the inner mold shell 5 and extends to the outside of the inner mold shell 5. A round shell 62 is fixedly connected to one side of the working shell 1. The side of the round shell 62 away from the working shell 1 is fixedly connected to the outer mold shell 63. An injection molding tube 64 is connected to the side of the working shell 1 near the round shell 62. One end of the injection molding tube 64 passes through the round shell 62 and is connected to the inside of the outer mold shell 63. A telescopic component 65 is provided on the inner wall of the round shell 62.

[0025] The telescopic assembly 65 includes a heat expansion medium shell 651 fixedly connected to the inner cavity of the circular shell 62, and a plurality of sliding rods 652 are slidably connected to the inner wall of the heat expansion medium shell 651. One end of the sliding rod 652 penetrates the circular shell 62 and extends to the outside of the circular shell 62. One end of the sliding rod 652 is fixedly connected to a first elastic rope 653. One end of the first elastic rope 653 penetrates the outer mold shell 63 and extends to the inside of the outer mold shell 63. The outer wall of the first elastic rope 653 is slidably connected to a sealing ring 654. The purpose of this arrangement is to prevent the water flow inside the outer mold shell 63 from leaking out.

[0026] One side of the sealing ring 654 is fixedly connected to the outer wall of the outer mold shell 63, one end of the first elastic rope 653 away from the sliding rod 652 is fixedly connected to the annular plate 655, and a plurality of telescopic springs 656 are fixedly connected to one side of the annular plate 655 close to the first elastic rope 653, one end of the telescopic spring 656 is fixedly connected to the bottom of the inner cavity of the outer mold shell 63, and a plurality of first rotating plates 657 are rotatably connected to the inner wall of the annular plate 655.

[0027] A moving assembly 66 is provided at one end of the first rotating plate 657, and the moving assembly 66 includes a second rotating plate 661 rotatably connected to an end of the first rotating plate 657 away from the annular plate 655, one end of the second rotating plate 661 is rotatably connected to a sliding block 662, one side of the sliding block 662 is fixedly connected to an arc spring 663, one end of the arc spring 663 away from the sliding block 662 is fixedly connected to one side of the second rotating plate 661, and the outer wall of the sliding block 662 is slidably connected to a cross groove plate 664.

[0028] The bottom of the cross groove plate 664 is fixedly connected to the bottom of the inner cavity of the outer mold shell 63, and the side of the sliding rod 652 away from the first elastic rope 653 is fixedly connected to the second elastic rope 665. The inner wall side of the cross groove plate 664 is fixedly connected to the limiting shell 666. The purpose of this setting is to limit the moving state of the second elastic rope 665. There are four limiting shells 666. One end of the second elastic rope 665 passes through the circular shell 62 and extends to the interior of the limiting shell 666. One end of the second elastic rope 665 away from the sliding rod 652 is fixedly connected to one side of the sliding block 662. The two sides of the second rotating plate 661 are respectively fixedly connected with arc shells 667, and vertical grooves 668 are respectively provided at both ends of one side of the arc shell 667.

[0029] A stirring assembly 67 is arranged inside the arc-shaped shell 667, and the stirring assembly 67 includes a semicircular tube 671 fixedly connected to the bottom of the inner wall of the arc-shaped shell 667, and the outer walls of the semicircular tube 671 are opened on both sides. The purpose of this arrangement is to enable the spherical rod 673 to move at the opening, and a semicircular block 672 is slidably connected to the top of the inner wall of the semicircular tube 671, and the spherical rod 673 is fixedly connected on both sides of the semicircular block 672, and a pull rope 674 is fixedly connected to the bottom of the semicircular block 672.

[0030] One end of the pull rope 674 passes through the semicircular tube 671 and extends to the interior of the outer mold shell 63. One end of the pull rope 674 is slidably connected to the limit rod 675 on the outer wall. One end of the limit rod 675 is fixedly connected to the bottom of the inner wall of the outer mold shell 63. The end of the pull rope 674 away from the semicircular block 672 is fixedly connected to the arc block 676. One side of the arc block 676 is fixedly connected to the outer wall of the cross groove plate 664. The inner wall of the vertical groove 668 is slidably connected to a plurality of lifting plates 677. One side of the lifting plate 677 is fixedly connected to a scraper 678. A return spring 679 is fixedly connected between the two lifting plates 677.

[0031] An arc tube 6710 is fixedly connected to one side of the arc shell 667, a double-headed rod 6711 is slidably connected between the two arc tubes 6710, a stirring plate 6712 is fixedly connected to the outer wall of the middle end of the double-headed rod 6711, a triangular block 6713 passes through and is slidably connected to one side of the outer wall of the arc tube 6710, one end of the triangular block 6713 is fixedly connected to a collision rod 6714, one side of the collision rod 6714 is fixedly connected to a pull rope spring 6715, and one end of the pull rope spring 6715 is fixedly connected to the outer wall of the arc tube 6710.

[0032] The telescopic rod 2 is started, the telescopic rod 2 drives the injection molding plate 3 to move, the injection molding plate 3 drives the spring seat 4 to move, the spring seat 4 drives the inner mold shell 5 to move, so that the inner mold shell 5 is docked with the outer mold shell 63, and then the melted plastic liquid is transported to between the inner mold shell 5 and the outer mold shell 63 through the injection molding tube 64 to perform injection molding. In this process, the mold being injected is water-cooled by the cold water in the outer mold shell 63. When the plastic liquid with a higher temperature passes through the injection molding tube 64, the heat is transferred to the heat expansion medium shell 651 in the round shell 62, so that the heat expansion medium in the heat expansion medium shell 651 expands, and the heat expansion medium expands and pushes the sliding rod 652 in the heat expansion medium shell 651 to move forward. During the movement of the sliding rod 652, the first elastic rope 653 is stretched, the first elastic rope 653 drives the annular plate 655 to move inside the outer mold shell 63, the annular plate 655 drives the first rotating plate 657 to move, the first rotating plate 657 drives the second rotating plate 661 to move, and is limited by the cross groove plate 664. The second rotating plate 661 drives the sliding block 662 to move inside the cross groove plate 664, and the second rotating plate 661 drives the arc shell 667 to move, thereby pushing the water inside the outer mold shell 63, making the water circulate inside the outer mold shell 63, preventing the water from being in a static state all the time, enhancing the water cooling effect, and enhancing the quality of mold injection.

[0033] When the second rotating plate 661 moves to the inner wall of the outer mold shell 63, the inner wall of the outer mold shell 63 is inclined, so that the second rotating plate 661 rotates and fits with the outer mold shell 63, and is blocked by the limiting rod 675. During the movement of the arc shell 667 following the second rotating plate 661, the pull rope 674 is stretched, and the pull rope 674 drives the semicircular block 672 inside the semicircular tube 671 to move downward, and the semicircular block 672 drives the spherical rod 673 to move downward. During the downward movement of the outer mold shell 63, it contacts the lifting plate 677, so that the lifting plate 677 drives the scraper 678 to move downward under the limit of the vertical groove 668. Because the second rotating plate 661 is in contact with the outer mold shell 63 at this time, The mold shell 63 is in a fitted state, and the scraper 678 will further stir the water on the inner wall of the outer mold shell 63 during the falling process, so that the water on the inner wall of the outer mold shell 63 can be in a moving state all the time, thereby further enhancing the quality of the mold during injection molding and preventing the mold from deforming or warping. When the sliding rod 652 moves, the sliding rod 652 drives the second elastic rope 665 to move, so that the second elastic rope 665 is stretched, so that the second elastic rope 665 drives the sliding block 662 to move inside the cross groove plate 664, thereby enhancing the stability of the movement of the sliding block 662, preventing the device from getting stuck during operation, and indirectly enhancing the water cooling effect inside the outer mold shell 63.

[0034] In Embodiment 2, an auxiliary component 68 is provided on the outer wall of the outer mold shell 63. The auxiliary component 68 includes a plurality of connecting shells 681 fixedly connected to the outer wall of the outer mold shell 63. A sliding plate 682 is slidably connected to the inner wall of the connecting shell 681. A rubber rope 683 is fixedly connected to one side of the sliding plate 682. One end of the rubber rope 683 passes through the connecting shell 681 and extends to the outside of the connecting shell 681. One end of the rubber rope 683 away from the sliding plate 682 is fixedly connected to the outer wall of one end of the first elastic rope 653. A fixing rod 684 is fixedly connected to one side of the inner wall of the connecting shell 681. The purpose of this arrangement is to prevent the spiral piece 686 from falling off. A circular tube 685 is connected to one side of the connecting shell 681. One end of the circular tube 685 is connected to the inside of the outer mold shell 63. The outer wall of one end of the fixing rod 684 is rotatably connected to the spiral piece 686. The spiral piece 686 is arranged inside the circular tube 685. One end of the spiral piece 686 is fixedly connected to a stirring blade sleeve 687. The stirring blade sleeve 687 is arranged inside the outer mold shell 63.

[0035] An injection mold for producing plastic packaging products and an injection molding method thereof, the injection molding method for producing plastic packaging products comprises the following steps: Step 1: Start the telescopic rod 2, the telescopic rod 2 drives the injection molding plate 3 to move, the injection molding plate 3 drives the spring seat 4 to move, the spring seat 4 drives the inner mold shell 5 to move, so that the inner mold shell 5 and the outer mold shell 63 are docked, and then the melted plastic liquid is transported to the space between the inner mold shell 5 and the outer mold shell 63 through the injection molding tube 64. When the high-temperature plastic liquid passes through the injection molding tube 64, the heat is transferred to the heat expansion medium shell 651 in the round shell 62, so that the heat expansion medium in the heat expansion medium shell 651 expands, and the heat expansion medium pushes the heat expansion medium to expand during the expansion process. The sliding rod 652 in the expansion medium shell 651 moves, and the first elastic rope 653 is stretched during the movement of the sliding rod 652. The first elastic rope 653 drives the annular plate 655 to move inside the outer mold shell 63. The annular plate 655 drives the first rotating plate 657 to move. The first rotating plate 657 drives the second rotating plate 661 to move. The second rotating plate 661 is limited by the cross groove plate 664, and the sliding block 662 is driven to move inside the cross groove plate 664. The second rotating plate 661 drives the arc shell 667 to move. Step 2: When the second rotating plate 661 moves to the inner wall of the outer mold shell 63, the inner wall of the outer mold shell 63 is inclined, so that the second rotating plate 661 rotates and fits with the outer mold shell 63, and is blocked by the limiting rod 675. During the movement of the arc shell 667 following the second rotating plate 661, the pull rope 674 is stretched, and the pull rope 674 drives the semicircular block 672 inside the semicircular tube 671 to move downward, and the semicircular block 672 drives the spherical rod 673 to move downward. , when the outer mold shell 63 moves downward, it contacts the lifting plate 677, so that the lifting plate 677 drives the scraper 678 to move downward under the limit of the vertical groove 668, because at this time the second rotating plate 661 is in a state of contact with the outer mold shell 63, when the sliding rod 652 moves, the sliding rod 652 drives the second elastic rope 665 to move, so that the second elastic rope 665 is stretched, so that the second elastic rope 665 drives the sliding block 662 to move inside the cross groove plate 664; Step 3: When the arc shell 667 is moving, the arc shell 667 drives the arc tube 6710 to move, the arc tube 6710 drives the double-headed rod 6711 to move, and the double-headed rod 6711 drives the stirring plate 6712 to move. When the arc tube 6710 drives the double-headed rod 6711 to move, the two arc tubes 6710 will approach each other, so that the double-headed rod 6711 will move inside the arc tube 6710. When the double-headed rod 6711 moves, it will contact the triangular block 6713, so that the triangular block 6713 moves, and the triangular block 6713 drives the impact rod 6714 to move. When the impact rod 6714 moves, it will contact the inner wall of the outer mold shell 63; Step 4: When the inner mold shell 5 comes into contact with the outer mold shell 63, the reaction force of the outer mold shell 63 causes the inner mold shell 5 and the injection molding plate 3 to gradually approach each other. In the process of the inner mold shell 5 and the injection molding plate 3 approaching each other, the cross bar 61 will move. During the movement, the cross bar 61 will squeeze the sliding plate 682, causing the sliding plate 682 to move inside the connecting shell 681. During the movement of the sliding plate 682, the rubber rope 683 will be moved to stretch the rubber rope 683, and the rubber rope 683 will drive the first elastic rope 653 to move. During the movement of the sliding plate 682, the water flow inside the connecting shell 681 will be pushed into the outer mold shell 63 through the circular tube 685. When the water flow passes through the circular tube 685, the spiral blade 686 will rotate, and the spiral blade 686 will drive the stirring blade sleeve 687 to rotate.

[0036] When in use, when the arc shell 667 is moving, the arc shell 667 drives the arc tube 6710 to move, the arc tube 6710 drives the double-headed rod 6711 to move, and the double-headed rod 6711 drives the stirring plate 6712 to move. During the movement of the stirring plate 6712, the water flow inside the outer mold shell 63 is stirred, further enhancing the movement state of the water flow. When the arc tube 6710 drives the double-headed rod 6711 to move, the two arc tubes 6710 will move closer to each other, so that the double-headed rod 6711 can move. The head rod 6711 will move inside the arc tube 6710. When the double-headed rod 6711 moves, it will come into contact with the triangular block 6713, thereby moving the triangular block 6713. The triangular block 6713 drives the impact rod 6714 to move. When the impact rod 6714 moves, it will come into contact with the inner wall of the outer mold shell 63, thereby colliding with the inner wall of the outer mold shell 63, further preventing the mold from adhering to the inner wall of the outer mold shell 63, and improving the quality of mold injection.

[0037] When the inner mold shell 5 contacts the outer mold shell 63, the reaction force of the outer mold shell 63 causes the inner mold shell 5 to gradually approach the injection plate 3. During the process of the inner mold shell 5 approaching the injection plate 3, the cross bar 61 moves. During the movement, the cross bar 61 squeezes the sliding plate 682, causing the sliding plate 682 to move inside the connecting shell 681. During the movement of the sliding plate 682, the rubber rope 683 is driven to move, causing the rubber rope 683 to stretch. The rubber rope 683 drives the first elastic rope 653 to move, thereby tightening the first elastic rope 653, causing the movement of the annular plate 655. The state is more stable, and the water cooling effect of the device is improved laterally. During the movement of the sliding plate 682, the water flow inside the connecting shell 681 will be pushed into the outer mold shell 63 through the circular tube 685. The generated water pressure can further disrupt the movement state of the water flow inside the outer mold shell 63. When the water flow passes through the circular tube 685, the spiral piece 686 will rotate, and the spiral piece 686 will drive the stirring blade sleeve 687 to rotate. The stirring blade sleeve 687 will stir the water flow inside the outer mold shell 63 during the rotation process, thereby improving the flow of cold water inside the outer mold shell 63, thereby enhancing the water cooling effect of the outer mold shell 63.

[0038] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An injection mold for producing plastic packaging products, characterized in that: The invention comprises a working shell (1), one side of the working shell (1) is fixedly connected to a telescopic rod (2), the movable end of the telescopic rod (2) is fixedly connected to an injection molding plate (3), the four sides of the injection molding plate (3) away from the telescopic rod (2) are respectively fixedly connected to spring seats (4), and one end of the spring seat (4) away from the injection molding plate (3) is fixedly connected to an inner mold shell (5), and further comprises: The injection molding water cooling mechanism (6) comprises a plurality of cross bars (61) fixedly connected to the periphery of a side of the injection molding plate (3) close to the spring seat (4), one end of the cross bar (61) passes through the inner mold shell (5) and extends to the outside of the inner mold shell (5), one side of the working shell (1) is fixedly connected to a round shell (62), a side of the round shell (62) away from the working shell (1) is fixedly connected to an outer mold shell (63), a side of the working shell (1) close to the round shell (62) is connected to an injection molding tube (64), one end of the injection molding tube (64) passes through the round shell (62) and is connected to the inside of the outer mold shell (63), and a telescopic component (65) is provided on the inner wall of the round shell (62).

2. The injection mold for producing plastic packaging products according to claim 1, characterized in that: The telescopic assembly (65) comprises a heat expansion medium shell (651) fixedly connected to the inner cavity of the circular shell (62); a plurality of sliding rods (652) are slidably connected to the inner wall of the heat expansion medium shell (651) around each other; one end of the sliding rod (652) passes through the circular shell (62) and extends to the outside of the circular shell (62); one end of the sliding rod (652) is fixedly connected to a first elastic rope (653); one end of the first elastic rope (653) passes through the outer mold shell (63) and extends to the inside of the outer mold shell (63); and a sealing ring (654) is slidably connected to the outer wall of the first elastic rope (653).

3. The injection mold for producing plastic packaging products according to claim 2, characterized in that: One side of the sealing ring (654) is fixedly connected to the outer wall of the outer mold shell (63); one end of the first elastic rope (653) away from the sliding rod (652) is fixedly connected to an annular plate (655); a side of the annular plate (655) close to the first elastic rope (653) is fixedly connected to a plurality of telescopic springs (656) around the periphery; one end of the telescopic spring (656) is fixedly connected to the bottom of the inner cavity of the outer mold shell (63); and a plurality of first rotating plates (657) are rotatably connected to the inner wall of the annular plate (655) around the periphery.

4. The injection mold for producing plastic packaging products according to claim 3, characterized in that: A moving assembly (66) is provided at one end of the first rotating plate (657), and the moving assembly (66) includes a second rotating plate (661) rotatably connected to an end of the first rotating plate (657) away from the annular plate (655), one end of the second rotating plate (661) is rotatably connected to a sliding block (662), one side of the sliding block (662) is fixedly connected to an arc spring (663), one end of the arc spring (663) away from the sliding block (662) is fixedly connected to one side of the second rotating plate (661), and the outer wall of the sliding block (662) is slidably connected to a cross groove plate (664).

5. The injection mold for producing plastic packaging products according to claim 4, characterized in that: The bottom of the cross groove plate (664) is fixedly connected to the bottom of the inner cavity of the outer mold shell (63); the side of the sliding rod (652) away from the first elastic rope (653) is fixedly connected to the second elastic rope (665); the inner wall side of the cross groove plate (664) is fixedly connected to a limiting shell (666); four limiting shells (666) are provided; one end of the second elastic rope (665) passes through the circular shell (62) and extends to the inside of the limiting shell (666); one end of the second elastic rope (665) away from the sliding rod (652) is fixedly connected to one side of the sliding block (662); the two sides of the second rotating plate (661) are respectively fixedly connected to arc shells (667); two ends of one side of the arc shell (667) are respectively provided with vertical grooves (668).

6. The injection mold for producing plastic packaging products according to claim 5, characterized in that: A stirring assembly (67) is arranged inside the arc-shaped shell (667), and the stirring assembly (67) comprises a semicircular tube (671) fixedly connected to the bottom of the inner wall of the arc-shaped shell (667), the outer wall of the semicircular tube (671) is provided with openings on both sides, the inner wall of the semicircular tube (671) is slidably connected to a semicircular block (672) at the top, the two sides of the semicircular block (672) are respectively fixedly connected to spherical rods (673), and the bottom of the semicircular block (672) is fixedly connected to a pull rope (674).

7. The injection mold for producing plastic packaging products according to claim 6, characterized in that: One end of the pull rope (674) passes through the semicircular tube (671) and extends to the inside of the outer mold shell (63); one end of the pull rope (674) is slidably connected to the outer wall of the limit rod (675); one end of the limit rod (675) is fixedly connected to the bottom of the inner wall of the outer mold shell (63); one end of the pull rope (674) away from the semicircular block (672) is fixedly connected to the arc block (676); one side of the arc block (676) is fixedly connected to the outer wall of the cross groove plate (664); the inner wall of the vertical groove (668) is slidably connected to a plurality of lifting plates (677); one side of the lifting plate (677) is fixedly connected to a scraper plate (678); and a return spring (679) is fixedly connected between the two lifting plates (677).

8. The injection mold for producing plastic packaging products according to claim 7, characterized in that: An arc tube (6710) is fixedly connected to one side of the arc shell (667), a double-headed rod (6711) is slidably connected between the two arc tubes (6710), a stirring plate (6712) is fixedly connected to the outer wall of the middle end of the double-headed rod (6711), a triangular block (6713) penetrates and is slidably connected to one side of the outer wall of the arc tube (6710), an impact rod (6714) is fixedly connected to one end of the triangular block (6713), a pull rope spring (6715) is fixedly connected to one side of the impact rod (6714), and one end of the pull rope spring (6715) is fixedly connected to the outer wall of the arc tube (6710).

9. An injection mold for producing plastic packaging products according to claim 8, characterized in that: The outer wall of the outer mold shell (63) is provided with an auxiliary component (68), and the auxiliary component (68) includes a plurality of connecting shells (681) fixedly connected to the outer wall of the outer mold shell (63), and the inner wall of the connecting shell (681) is slidably connected to a sliding plate (682), and one side of the sliding plate (682) is fixedly connected to a rubber rope (683), one end of the rubber rope (683) passes through the connecting shell (681) and extends to the outside of the connecting shell (681), and one end of the rubber rope (683) away from the sliding plate (682) is fixedly connected to the first elastic rope (683). 53), a fixing rod (684) is fixedly connected to one side of the inner wall of the connecting shell (681), a round tube (685) is connected to one side of the connecting shell (681), one end of the round tube (685) is connected to the interior of the outer mold shell (63), a spiral piece (686) is rotatably connected to the outer wall of one end of the fixing rod (684), the spiral piece (686) is arranged inside the round tube (685), and one end of the spiral piece (686) is fixedly connected to a stirring blade sleeve (687), and the stirring blade sleeve (687) is arranged inside the outer mold shell (63).

10. An injection molding method for producing plastic packaging products, using the injection molding mold for producing plastic packaging products as claimed in claim 9, characterized in that: The steps include: Step 1: Start the telescopic rod (2), the telescopic rod (2) drives the injection molding plate (3) to move, the injection molding plate (3) drives the spring seat (4) to move, the spring seat (4) drives the inner mold shell (5) to move, so that the inner mold shell (5) and the outer mold shell (63) are docked, and then the melted plastic liquid is transported to between the inner mold shell (5) and the outer mold shell (63) through the injection molding tube (64). When the plastic liquid with a higher temperature passes through the injection molding tube (64), the heat is transferred to the heat expansion medium shell (651) in the round shell (62), so that the heat expansion medium in the heat expansion medium shell (651) expands. During the expansion of the heat expansion medium, the heat expansion medium promotes the heat expansion. The sliding rod (652) in the dielectric shell (651) moves, and the first elastic rope (653) is stretched during the movement of the sliding rod (652). The first elastic rope (653) drives the annular plate (655) to move inside the outer mold shell (63). The annular plate (655) drives the first rotating plate (657) to move. The first rotating plate (657) drives the second rotating plate (661) to move. The second rotating plate (661) drives the sliding block (662) to move inside the cross groove plate (664) when it is limited. The second rotating plate (661) drives the arc shell (667) to move. Step 2: When the second rotating plate (661) moves to the inner wall of the outer mold shell (63), the inner wall of the outer mold shell (63) is tilted, so that the second rotating plate (661) rotates and fits with the outer mold shell (63), and is locked by the limit rod (675). When the arc shell (667) moves with the second rotating plate (661), the pull rope (674) is stretched, and the pull rope (674) drives the semicircular block (672) inside the semicircular tube (671) to move downward, and the semicircular block (672) drives the spherical rod (673) to move downward. , the outer mold shell (67) contacts the lifting plate (677) during the downward movement, so that the lifting plate (677) drives the scraper (678) to move downward under the limit of the vertical groove (668). Because the second rotating plate (661) is in a fitted state with the outer mold shell (63) at this time, when the sliding rod (652) moves, the sliding rod (652) drives the second elastic rope (665) to move, so that the second elastic rope (665) is stretched, so that the second elastic rope (665) drives the sliding block (662) to move inside the cross groove plate (664); Step 3: When the arc shell (667) is moving, the arc shell (667) drives the arc tube (6710) to move, the arc tube (6710) drives the double-headed rod (6711) to move, the double-headed rod (6711) drives the stirring plate (6712) to move, and when the arc tube (6710) drives the double-headed rod (6711) to move, the two arc tubes (6710) will approach each other, so that the double-headed rod (6711) will move inside the arc tube (6710), and when the double-headed rod (6711) moves, it will contact the triangular block (6713), so that the triangular block (6713) moves, and the triangular block (6713) drives the impact rod (6714) to move, and the impact rod (6714) will contact the inner wall of the outer mold shell (63) during the movement; Step 4: When the inner mold shell (5) and the outer mold shell (63) come into contact, the inner mold shell (5) and the injection molding plate (3) gradually approach each other due to the reaction force of the outer mold shell (63). During the process of the inner mold shell (5) and the injection molding plate (3) approaching each other, the cross bar (61) moves. During the movement, the cross bar (61) squeezes the sliding plate (682), causing the sliding plate (682) to move inside the connecting shell (681). During the movement of the sliding plate (682), The rubber rope (683) is driven to move, so that the rubber rope (683) is stretched, and the rubber rope (683) drives the first elastic rope (653) to move. During the movement of the sliding plate (682), the water flow inside the connecting shell (681) is pushed into the interior of the outer mold shell (63) through the circular tube (685). When the water flow passes through the circular tube (685), the spiral blade (686) is rotated, and the spiral blade (686) drives the stirring blade sleeve (687) to rotate.

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