Injection mold capable of accurately adjusting thickness of mold cavity and injection molding method

Abstract

The invention provides an injection mold capable of accurately adjusting the thickness of a mold cavity and an injection molding method. The injection mold device capable of accurately adjusting the thickness of the mold cavity comprises a bottom plate; the injection molding table is fixedly connected to the top of the bottom plate, a mounting frame is fixedly connected to the top of the injection molding table, a lifting assembly is mounted at the top of the mounting frame, a movable mold is mounted at the telescopic end of the lifting assembly through a butt joint assembly, and first bevel gears are rotationally connected to the positions, close to the four corners, of the top of the movable mold; the tops of the four first bevel gears are in threaded connection with ball screws correspondingly, and the bottom ends of the four ball screws are rotationally connected with the positions, close to the four corners, of the top of the template through rotating buckles. According to the injection mold device capable of accurately adjusting the thickness of the mold cavity, through the design, the mold plate can be rapidly and stably driven to adjust the position on the premise that the integrity of the periphery of the fixed mold or the movable mold is not damaged, and therefore accurate adjustment of the thickness of the mold cavity is achieved.

Description

Technical Field

[0001] The present invention relates to the field of injection molds with adjustable cavity thickness, and particularly to an injection mold and an injection method for precisely adjusting the cavity thickness of a mold. Background Art

[0002] An injection mold is a common manufacturing tool mainly used for manufacturing plastic injection molded products. It consists of a high-precision mold and a mold support, and is used to manufacture plastic products of various shapes and sizes, such as plastic cups, plastic plates, plastic toys, automotive parts, etc. In the injection molding process, the mold is filled with molten plastic, and then solidified through a cooling process to form the required plastic products. Injection molds play a crucial role in modern manufacturing.

[0003] In the published patent 202311183648.2, it includes a fixed mold and a moving mold, and is characterized in that: the moving mold is arranged corresponding to the fixed mold, and a driving structure for driving the moving mold to move is arranged between the moving mold and the fixed mold; a template is slidably connected inside the fixed mold, and the thickness of the mold cavity is changed by sliding the template... When adjusting the thickness of the mold cavity, the template can be pushed to move by rotating the circular plate. The adjustment operation is simple, and when adjusting, the middle part of the template is pushed to move the template, which will not cause the corners of the template to skew, improving the adjustment accuracy; the injection part is specially designed so that after the thickness of the mold cavity is adjusted, the injection time remains unchanged, so there is no need to change the rhythm of subsequent processes and no need to debug subsequent equipment, which is convenient for production and makes the practicality of this mold stronger.

[0004] The structure for fixing the template in the above structure is realized through a positioning component penetrating the fixed mold. There is an opening on the fixed mold during this process. When the template moves to a position corresponding to the opening, the injection material will flow out from the opening. Secondly, when the position of the template needs to be adjusted each time, bolts need to be frequently tightened and loosened, and the operation is cumbersome, reducing the adjustment efficiency.

[0005] Therefore, it is necessary to provide an injection mold and an injection method for precisely adjusting the cavity thickness of a mold to solve the above technical problems. Summary of the Invention

[0006] The present invention provides an injection mold and an injection method for precisely adjusting the cavity thickness of a mold, which solves the problems.

[0007] To solve the above technical problems, the injection mold device for precisely adjusting the cavity thickness of a mold provided by the present invention includes: a bottom plate;

[0008] Injection molding table, the injection molding table is fixedly connected to the top of the bottom plate, the top of the injection molding table is fixedly connected with a mounting frame, a lifting assembly is installed on the top of the mounting frame, the telescopic end of the lifting assembly is installed with a moving mold through a docking assembly, and the top of the moving mold is rotatably connected with a first bevel gear near the four corners. The top of the four first bevel gears is threadedly connected with a ball screw. The bottom ends of the four ball screws are rotatably connected to the top of the template near the four corners through a rotating buckle. The top of the template near the front is installed with an injection pipe, the top of the injection pipe is installed with an insertion pipe, and the top of the insertion pipe is installed with a docking pipe of a docking head. The top of the moving mold is rotatably connected with four rotating shafts through four rotating frames. Both ends of the four rotating shafts are fixedly connected with a second bevel gear. The top of the moving mold is installed with a fixed shell, the top of the fixed shell is installed with a driving assembly, the output end of the driving assembly is installed with a rotating rod, and the other end of the rotating rod is installed with a driving bevel gear. The top of the moving mold near the four corners is installed with a mounting shell;

[0009] Mounting assembly, the mounting assembly is installed on the top of the injection molding table, and a stationary mold is installed on the top of the mounting assembly;

[0010] The first bevel gear is internally provided with a thread that is threadedly connected to the ball screw and is internally equipped with balls to increase the stability and smoothness of the up and down movement of the ball screw. The ball screw passes through the first bevel gear in a threaded manner. The adjacent ends of the rotating shafts are inserted into the interior of the fixed shell. The driving bevel gear is meshed with the second bevel gear at one end of the rotating shaft, and the second bevel gear is meshed with the first bevel gear.

[0011] Preferably, the mounting assembly includes a fixing structure, a limiting structure, and a docking structure. The fixing structure is used to fix the docking structure that is snapped into the limiting structure. An exhaust port is provided on the back of the mounting frame, and a heat dissipation component is installed on the back of the mounting frame through a heat dissipation frame;

[0012] The docking structure is connected to the bottom of the stationary mold.

[0013] Preferably, the lifting assembly includes a telescopic component, a stabilizing rod, and a movable plate. The stabilizing rod passes through the mounting frame to increase the stability of the up and down movement of the movable plate;

[0014] The telescopic rod or hydraulic rod of the telescopic component is used to provide a telescopic force.

[0015] Preferably, the docking assembly includes a docking component, a connecting bolt, and a clamping structure. The connecting bolt is used to connect the clamping structure and the movable plate, and the clamping structure is snapped into the interior of the docking component.

[0016] Preferably, laser rangefinders are installed on the top of the installation shell, and docking plates are fixedly connected to the tops of the four ball screws;

[0017] The positions of the docking plate and the laser rangefinder match, and the distance of the up and down movement of the ball screw can be accurately measured.

[0018] Preferably, a control box with a box door is installed on the top of the bottom plate, and an operation screen is installed on the front of the injection molding table through an installation base;

[0019] The operation screen can set the operation parameters of the equipment, and a lock is set on the box door.

[0020] Preferably, the drive assembly includes a protective shell, an angle sensor and a drive component, and the protective shell is used to install the drive component that provides rotational driving force;

[0021] The angle sensor cooperates with the controller of the drive component to control the rotation angle and speed of the drive component.

[0022] Preferably, a circulation frame is installed on the outer surface of the fixed mold, and a delivery pipe and a return pipe are respectively installed on the back of the circulation frame;

[0023] The inside of the circulation frame is hollow.

[0024] Preferably, a delivery assembly and a filtering assembly are respectively installed on the back of the injection molding table. The delivery assembly includes a support shell and a delivery component, and a first connection pipe is installed at the outlet of the delivery component. The filtering assembly includes a filtering box and an intercepting component, and a second connection pipe is installed on one side of the filtering box;

[0025] The other ends of the second connection pipe and the first connection pipe are both connected to the liquid tank. The liquid is heated or cooled by a heating device or a refrigerating device and then injected into the liquid tank for use. The other end of the return pipe is connected to the other side of the filtering box.

[0026] An injection molding method for an injection mold for precisely adjusting the thickness of a mold cavity. The injection mold for precisely adjusting the thickness of a mold cavity needs to use the injection molding method for an injection mold for precisely adjusting the thickness of a mold cavity, including the following steps:

[0027] S1: First, install the fixed mold on the top of the injection molding table through the installation component. At the same time, install the moving mold on the telescopic end of the lifting component through the docking component. Four rotating shafts with second bevel gears at both ends are rotatably connected to the top of the moving mold through four rotating frames. At the same time, first bevel gears are rotatably connected to the positions near the four corners of the top of the moving mold. And connect the second bevel gears at one end of the four rotating shafts and the four first bevel gears in meshing connection. And install a driving component with a driving bevel gear on the top of the moving mold through the fixed shell. And connect the driving bevel gear and the second bevel gears at the other ends of the four rotating shafts in meshing connection. When the driving component drives the four rotating shafts to rotate, the four first bevel gears can be driven to rotate synchronously;

[0028] S2: And at the positions near the four corners of the top of the template, ball screws are rotatably connected through rotating buckles. At the same time, let the ball screws penetrate through the first bevel gears and thread-connect the two. By rotating the four ball screws, the template can be driven to adjust its position inside the fixed mold, so as to adjust the thickness of the injection mold cavity;

[0029] S3: During the actual use process, when it is necessary to adjust the thickness of the injection mold cavity, only need to start the driving component to rotate forward and backward according to the requirements. Thus, the four second bevel gears are driven to rotate through the driving bevel gear. Then the four rotating shafts can be driven to rotate synchronously. During the rotation of the rotating shafts, the four first bevel gears can be driven to rotate synchronously. Thus, the ball screws are driven to move up and down. In this process, according to the length of the up and down movement of the ball screws, the moving distance of the template can be accurately obtained. After the distance adjustment of the template is completed, the raw material can be injected between the fixed mold and the template through the insertion pipe on the injection pipe through the conveying structure, and then cooled and formed. After the forming is completed, only need to start the lifting component to drive the moving mold and the template to move upward, and the formed product can be taken out from the inside of the fixed mold.

[0030] Compared with the related technology, the injection mold and injection method for precisely adjusting the thickness of the mold cavity provided by the present invention have the following beneficial effects:

[0031] The present invention provides an injection mold device for precisely adjusting the thickness of a mold cavity. In order to improve the efficiency of adjusting the thickness of the injection mold cavity and reduce the impact on the fixed mold during the adjustment process, first, the fixed mold is installed on the top of the injection table through an installation component. At the same time, the moving mold is installed at the telescopic end of the lifting component through a docking component. The top of the moving mold is rotatably connected with four rotating shafts with second bevel gears at both ends through four rotating frames. At the same time, the first bevel gears are rotatably connected at the positions near the four corners of the top of the moving mold. And the second bevel gears at one end of the four rotating shafts are meshed and connected with the four first bevel gears. A driving component with a driving bevel gear is installed on the top of the moving mold through a fixed shell, and the driving bevel gear is meshed and connected with the second bevel gears at the other ends of the four rotating shafts. When the driving component drives the four rotating shafts to rotate, the four first bevel gears can be driven to rotate synchronously. At the same time, ball screws are rotatably connected at the positions near the four corners of the top of the template through rotating buckles. And the ball screws penetrate through the first bevel gears and are threadedly connected with them. By rotating the four ball screws, the template can be driven to adjust its position inside the fixed mold, thereby adjusting the thickness of the injection mold cavity. Through this design, the position of the template can be quickly and stably adjusted without damaging the integrity of the fixed mold or the periphery of the moving mold, so as to achieve precise adjustment of the thickness of the mold cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 FIG. 6 is a schematic structural diagram of the first embodiment of the injection mold device for precisely adjusting the thickness of the mold cavity provided by the present invention;

[0033] Figure 2 FIG. 10 is a schematic structural diagram of the clamping structure provided by the present invention;

[0034] Figure 3 provided by the present invention Figure 2 The enlarged view of the position A shown in FIG.

[0035] Figure 4 FIG. 20 is a schematic structural diagram of the driving component provided by the present invention;

[0036] Figure 5 FIG. 24 is a schematic structural diagram of the heat dissipation rack provided by the present invention;

[0037] Figure 6 FIG. 28 is a schematic structural diagram of the second embodiment of the injection mold device for precisely adjusting the thickness of the mold cavity provided by the present invention;

[0038] Figure 7 FIG. 32 is a schematic structural diagram of the conveying component provided by the present invention.

[0039] Reference numerals in the figure: 1, bottom plate; 2, control box; 3, box door; 4, injection molding table; 5, installation assembly, 501, fixing structure, 502, limiting structure, 503, docking structure; 6, fixed mold; 7, moving mold; 8, installation shell; 9, installation frame; 10, lifting assembly, 101, telescopic component, 102, stabilizing rod, 103, movable plate; 11, return pipe; 12, docking assembly, 121, docking component, 122, connecting bolt, 123, clamping structure; 13, operation screen; 14, installation base; 15, docking plate; 16, ball screw; 17, laser rangefinder; 18, first bevel gear; 19, second bevel gear; 20, rotating frame; 21, rotating shaft; 22, fixed shell; 23, docking head; 24, docking pipe; 25, insertion pipe; 26, driving assembly, 261, protective shell, 262, angle sensor, 263, driving component; 27, rotating rod; 28, driving bevel gear; 29, injection pipe; 30, template; 31, rotating buckle; 32, exhaust port; 33, heat dissipation component; 34, heat dissipation frame; 35, conveying pipe; 36, first connecting pipe; 37, conveying assembly, 371, support shell, 372, conveying component; 38, second connecting pipe; 39, filtering assembly, 391, filtering box, 392, intercepting component; 40, circulation frame. Detailed implementation mode

[0040] The present invention will be further described below in conjunction with the accompanying drawings and the implementation mode.

[0041] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 , wherein, Figure 1 is a schematic structural diagram of the first embodiment of the injection molding die device for precisely adjusting the thickness of the die cavity provided by the present invention; Figure 2 is a schematic structural diagram of the clamping structure provided by the present invention; Figure 3 is provided by the present invention Figure 2 The enlarged view of the A position shown;

[0042] Figure 4 is a schematic structural diagram of the driving component provided by the present invention; Figure 5 is a schematic structural diagram of the heat dissipation frame provided by the present invention. The injection molding die device for precisely adjusting the thickness of the die cavity includes: bottom plate 1;

[0043] Injection molding table 4, the injection molding table 4 is fixedly connected to the top of the bottom plate 1, the top of the injection molding table 4 is fixedly connected with a mounting frame 9, a lifting component 10 is installed on the top of the mounting frame 9, the telescopic end of the lifting component 10 is installed with a moving mold 7 through a docking component 12, the top of the moving mold 7 is rotatably connected with a first bevel gear 18 near the four corners, the top of the four first bevel gears 18 is threadedly connected with a ball screw 16, the bottom ends of the four ball screws 16 are rotatably connected with the top of the template 30 near the four corners through a rotating buckle 31, the top of the template 30 near the front is installed with an injection pipe 29, the top of the injection pipe 29 is installed with an insertion pipe 25, the top of the insertion pipe 25 is installed with a docking pipe 24 of a docking head 23, the top of the moving mold 7 is rotatably connected with four rotating shafts 21 through four rotating frames 20, both ends of the four rotating shafts 21 are fixedly connected with a second bevel gear 19, the top of the moving mold 7 is installed with a fixed shell 22, the top of the fixed shell 22 is installed with a driving component 26, the output end of the driving component 26 is installed with a rotating rod 27, the other end of the rotating rod 27 is installed with a driving bevel gear 28, the top of the moving mold 7 near the four corners is installed with a mounting shell 8;

[0044] Mounting component 5, the mounting component 5 is installed on the top of the injection molding table 4, and a fixed mold 6 is installed on the top of the mounting component 5;

[0045] The first bevel gear 18 is internally provided with a thread threadedly connected with the ball screw 16 and is internally equipped with balls, which increases the stability and smoothness of the up and down movement of the ball screw 16. The ball screw 16 threadedly penetrates the first bevel gear 18. One end of the adjacent rotating shaft 21 is inserted into the fixed shell 22. The driving bevel gear 28 is meshed with the second bevel gear 19 at one end of the rotating shaft 21. The second bevel gear 19 is meshed with the first bevel gear 18. The mounting shell 8 covers the first bevel gear 18 and the second bevel gear 19 to play a protective role. The docking head 23 facilitates connection with the conveying structure for conveying raw materials.

[0046] The mounting component 5 includes a fixing structure 501, a limiting structure 502 and a docking structure 503. The fixing structure 501 is used to fix the docking structure 503 clamped into the limiting structure 502. An exhaust port 32 is provided on the back of the mounting frame 9, and a heat dissipation component 33 is installed on the back of the mounting frame 9 through a heat dissipation frame 34;

[0047] The docking structure 503 is connected to the bottom of the fixed mold 6, and the heat dissipation component 33 is a heat dissipation fan, which can assist in heat dissipation.

[0048] The lifting assembly 10 includes a telescopic member 101, a stabilizing rod 102, and a movable plate 103. The stabilizing rod 102 passes through the mounting bracket 9 to increase the stability of the up-and-down movement of the movable plate 103.

[0049] The telescopic rod or hydraulic rod of the telescopic member 101 is used to provide a telescopic force.

[0050] The docking assembly 12 includes a docking member 121, a connecting bolt 122, and a clamping structure 123. The connecting bolt 122 is used to connect the clamping structure 123 and the movable plate 103 well, and the clamping structure 123 is clamped into the interior of the docking member 121.

[0051] After the clamping structure 123 is inserted into the interior of the docking member 121, it is fixed by bolts.

[0052] Laser rangefinders 17 are installed on the top of the mounting shell 8, and docking plates 15 are fixedly connected to the tops of the four ball screw rods 16.

[0053] The positions of the docking plate 15 and the laser rangefinder 17 match, and the distance of the up-and-down movement of the ball screw rod 16 can be accurately measured.

[0054] A control box 2 with a box door 3 is installed on the top of the bottom plate 1, and an operation screen 13 is installed on the front of the injection molding table 4 through a mounting base 14.

[0055] The operation screen 13 can set the equipment operation parameters. A lock is provided on the box door 3, and a power switch and a controller for controlling the equipment operation are installed inside the control box 2.

[0056] The drive assembly 26 includes a protective shell 261, an angle sensor 262, and a drive member 263. The protective shell 261 is used to install the drive member 263 that provides a rotational driving force.

[0057] The angle sensor 262 cooperates with the controller of the drive member 263 to control the rotation angle and speed of the drive member 263. The drive member 263 can be a motor or a motor.

[0058] An injection molding method for an injection mold that precisely adjusts the thickness of the mold cavity. The injection mold that precisely adjusts the thickness of the mold cavity needs to use the injection molding method for an injection mold that precisely adjusts the thickness of the mold cavity, including the following steps:

[0059] S1: First, install the fixed mold 6 on the top of the injection molding table 4 through the installation component 5. At the same time, install the moving mold 7 on the telescopic end of the lifting component 10 through the docking component 12. Four rotating shafts 21 with second bevel gears 19 at both ends are rotatably connected to the top of the moving mold 7 through four rotating frames 20. At the same time, first bevel gears 18 are rotatably connected to positions near the four corners of the top of the moving mold 7. And mesh the second bevel gears 19 at one end of the four rotating shafts 21 with the four first bevel gears 18. A driving component 26 with a driving bevel gear 28 is installed on the top of the moving mold 7 through a fixed shell 22. And mesh the driving bevel gear 28 with the second bevel gears 19 at the other ends of the four rotating shafts 21. When the driving component 26 drives the four rotating shafts 21 to rotate, the four first bevel gears 18 can be driven to rotate synchronously;

[0060] S2: At positions near the four corners of the top of the template 30, ball screws 16 are rotatably connected through rotating buckles 31. At the same time, let the ball screws 16 pass through the first bevel gears 18 and thread-connect the two. By rotating the four ball screws 16, the template 30 can be driven to adjust its position inside the fixed mold 6, thereby adjusting the thickness of the injection mold cavity;

[0061] S3: During actual use, when it is necessary to adjust the thickness of the injection mold cavity, only need to start the driving component 26 to rotate forward and backward according to the requirements. Thus, the four second bevel gears 19 are driven to rotate through the driving bevel gear 28, and the four rotating shafts 21 can be driven to rotate synchronously. During the rotation of the rotating shafts 21, the four first bevel gears 18 can be driven to rotate synchronously, thereby driving the ball screws 16 to move up and down. During this process, according to the length of the up and down movement of the ball screws 16, the moving distance of the template 30 can be accurately obtained. After the distance adjustment of the template 30 is completed, the raw material can be injected between the fixed mold 6 and the template 30 through the insertion tube 25 on the injection tube 29 through the conveying structure for cooling and forming. After the forming is completed, only need to start the lifting component 10 to drive the moving mold 7 and the template 30 to move upward, and the formed product can be taken out from the inside of the fixed mold 6.

[0062] The working principle of the injection mold and the injection method for precisely adjusting the thickness of the mold cavity provided by the present invention is as follows:

[0063] First, the fixed mold 6 is installed on the top of the injection molding table 4 through the mounting assembly 5, and the movable mold 7 is installed on the telescopic end of the lifting assembly 10 through the docking assembly 12. The top of the movable mold 7 is rotatably connected to four rotating shafts 21 with second bevel gears 19 at both ends through four rotating frames 20. At the same time, the top of the movable mold 7 near the four corners is rotatably connected to the first bevel gear 18, and the second bevel gears 19 at one end of the four rotating shafts 21 are meshed and connected with the four first bevel gears 18. A driving assembly 26 with a driving bevel gear 28 is installed on the top of the movable mold 7 through the top of the fixed shell 22, and the driving bevel gear 28 is meshed and connected with the second bevel gears 19 at the other end of the four rotating shafts 21. The four first bevel gears 18 can be driven to rotate synchronously during the rotation of the four rotating shafts 21 by the driving assembly 26. The top of the template 30 near the four corners is rotatably connected to the ball screw 16 through the rotating buckle 31, and the ball screw 16 is passed through the first bevel gear 18 to allow the two to rotate. After the threaded connection is completed, the rotation of the four ball screws 16 can drive the template 30 to adjust its position inside the fixed mold 6, thereby adjusting the thickness of the injection mold cavity. When the thickness of the injection mold cavity needs to be adjusted during actual use, it is only necessary to start the driving assembly 26 forward and reverse according to demand, so that the four second bevel gears 19 are driven to rotate by the bevel gear 28, which can drive the four rotating shafts 21 to rotate synchronously. During the rotation of the rotating shaft 21, the four first bevel gears 18 can be driven to rotate synchronously, thereby driving the ball screw 16 to move up and down. In this process, the moving spacing of the template 30 can be accurately obtained according to the length of the up and down movement of the ball screw 16. After the spacing of the template 30 is adjusted, the raw material can be injected between the fixed mold 6 and the template 30 through the insertion tube 25 on the injection pipe 29 through the conveying structure for cooling and molding. After molding is completed, it is only necessary to start the lifting assembly 10 to drive the movable mold 7 and the template 30 to move upward, and the molded product can be taken out from the inside of the fixed mold 6.

[0064] Compared with related technologies, the injection mold and injection molding method for accurately adjusting the mold cavity thickness provided by the present invention have the following beneficial effects:

[0065] In order to improve the adjustment efficiency of the cavity thickness of the injection mold and reduce the impact on the stationary mold 6 during the adjustment process, first, the stationary mold 6 is installed on the top of the injection table 4 through the installation component 5. At the same time, the moving mold 7 is installed on the telescopic end of the lifting component 10 through the docking component 12. The top of the moving mold 7 is rotatably connected with four rotating frames 20, and four rotating shafts 21 with second bevel gears 19 at both ends are rotatably connected. At the same time, the first bevel gears 18 are rotatably connected at the positions near the four corners of the top of the moving mold 7. And the second bevel gears 19 at one end of the four rotating shafts 21 are meshed and connected with the four first bevel gears 18. A driving component 26 with a driving bevel gear 28 is installed on the top of the fixed shell 22 on the top of the moving mold 7, and the driving bevel gear 28 is meshed and connected with the second bevel gears 19 at the other ends of the four rotating shafts 21. When the driving component 26 drives the four rotating shafts 21 to rotate, the four first bevel gears 18 can be driven to rotate synchronously. At the positions near the four corners of the top of the template 30, ball screws 16 are rotatably connected through rotating buckles 31. At the same time, the ball screws 16 penetrate through the first bevel gears 18 and are threadedly connected with them. By rotating the four ball screws 16, the position of the template 30 can be adjusted inside the stationary mold 6, thereby adjusting the cavity thickness of the injection mold. Through this design, the position of the template 30 can be quickly and stably adjusted without damaging the integrity of the periphery of the stationary mold 6 or the moving mold 7, so as to realize the precise adjustment of the cavity thickness of the mold.

[0066] Second Embodiment

[0067] Please refer to Figures 6 - 7 , Figure 6 which is a schematic structural diagram of the second embodiment of the injection mold device for precisely adjusting the cavity thickness provided by the present invention; Figure 7 which is a schematic structural diagram of the conveying component provided by the present invention. Based on the injection mold and injection method for precisely adjusting the cavity thickness provided by the first embodiment of the present application, the second embodiment of the present application proposes another injection mold and injection method for precisely adjusting the cavity thickness. The second embodiment is only a preferred manner of the first embodiment, and the implementation of the second embodiment will not affect the independent implementation of the first embodiment.

[0068] Specifically, the difference between the injection mold and injection method for precisely adjusting the cavity thickness provided by the second embodiment of the present application is that a circulation frame 40 is installed on the outer surface of the stationary mold 6, and a conveying pipe 35 and a return pipe 11 are respectively installed on the back of the circulation frame 40;

[0069] The inside of the circulation frame 40 is hollow, which is convenient for heating liquid and cooling liquid to enter to assist in heating and cooling the mold.

[0070] On the back of the injection molding table 4, a conveying component 37 and a filtering component 39 are respectively installed. The conveying component 37 includes a support shell 371 and a conveying part 372. A first connecting pipe 36 is installed at the outlet of the conveying part 372. The filtering component 39 includes a filtering box 391 and an intercepting part 392. A second connecting pipe 38 is installed on one side of the filtering box 391;

[0071] The other ends of the second connecting pipe 38 and the first connecting pipe 36 are both connected to the liquid tank. The liquid is heated or cooled by a heating device or a refrigerating device and then injected into the liquid tank for use. The other end of the return pipe 11 is connected to the other side of the filtering box 391. The other end of the conveying pipe 35 is connected to the outlet of the conveying part 372. The filtering component 39 can filter the liquid inside the circulation frame 40 and then return it to the liquid tank. The intercepting part 392 is a structure for filtering impurities in the liquid. The conveying part 372 is a liquid delivery pump.

[0072] Compared with the related art, the injection mold and injection molding method for precisely adjusting the thickness of the mold cavity provided by the present invention have the following beneficial effects:

[0073] In order to assist in preheating or cooling the fixed mold 6, a circulation frame 40 is installed on the outer surface of the fixed mold 6. Then, through the conveying component 37, the conveying pipe 35, the filtering component 39, the return pipe 11, the first connecting pipe 36 and the second connecting pipe 38, the liquid tank is communicated with the circulation frame 40, so that high-temperature liquid or cooling liquid can circulate between the circulation frame 40 and the liquid tank, thereby assisting in heating or cooling the fixed mold 6. In actual use, before injecting the material, high-temperature liquid is injected into the inside of the circulation frame 40 to preheat the fixed mold 6. After the raw material is injected and molded, the hot water is replaced by cold water to assist in cooling the fixed mold 6, thereby reducing the cooling time of the product inside the fixed mold 6 and being beneficial to improving the use efficiency of the injection mold.

[0074] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structure or equivalent process transformation made by using the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. An injection mold device for precisely adjusting the thickness of a mold cavity, characterized in that Including: Bottom plate; Injection platform, the injection platform is fixedly connected to the top of the bottom plate, a mounting frame is fixedly connected to the top of the injection platform, a lifting component is installed on the top of the mounting frame, the telescopic end of the lifting component is installed with a moving mold through a docking component, and a first bevel gear is rotatably connected to each position near the four corners of the top of the moving mold. A ball screw is threadedly connected to the top of each of the four first bevel gears. The bottom ends of the four ball screws are rotatably connected to the positions near the four corners of the top of the template through a rotating buckle. An injection pipe is installed at a position near the front of the top of the template. A plug-in pipe is installed at the top of the injection pipe. A docking pipe with a docking head is installed at the top of the plug-in pipe. Four rotating shafts are rotatably connected to the top of the moving mold through four rotating frames. Second bevel gears are fixedly connected to both ends of the four rotating shafts. A fixed shell is installed on the top of the moving mold. A driving component is installed on the top of the fixed shell. The output end of the driving component is installed with a rotating rod. The other end of the rotating rod is installed with a driving bevel gear. Installation shells are installed at positions near the four corners of the top of the moving mold; Installation component, the installation component is installed on the top of the injection platform, and a fixed mold is installed on the top of the installation component.

2. The injection mold device for precisely adjusting the thickness of the mold cavity according to claim 1, characterized in that, The installation component includes a fixing structure, a limiting structure and a docking structure. The fixing structure is used to fix the docking structure that is snapped into the limiting structure. An exhaust port is opened on the back of the mounting frame, and a heat dissipation component is installed on the back of the mounting frame through a heat dissipation frame.

3. The injection mold device for precisely adjusting the thickness of a mold cavity according to claim 1, characterized in that, The lifting component includes a telescopic component, a stabilizing rod and a movable plate. The stabilizing rod penetrates through the mounting frame to increase the stability of the up and down movement of the movable plate.

4. The injection mold device for precisely adjusting the thickness of a mold cavity according to claim 1, characterized in that, The docking component includes a docking component, a connecting bolt and a clamping structure. The connecting bolt is used to connect the clamping structure and the movable plate well, and the clamping structure is clamped into the interior of the docking component.

5. The injection mold device for precisely adjusting the thickness of the mold cavity according to claim 1, characterized in that, Laser rangefinders are installed on the tops of the installation shells, and docking plates are fixedly connected to the tops of the four ball screws.

6. The injection mold device for precisely adjusting the thickness of a mold cavity according to claim 1, characterized in that, A control box with a box door is installed on the top of the bottom plate, and an operation screen is installed on the front of the injection platform through a mounting base.

7. The injection mold device for precisely adjusting the thickness of a mold cavity according to claim 1, characterized in that, The driving component includes a protective shell, an angle sensor and a driving component. The protective shell is used to install the driving component that provides rotational driving force.

8. The injection mold device for precisely adjusting the thickness of a mold cavity according to claim 1, characterized in that, A circulation frame is installed on the outer surface of the fixed mold, and a delivery pipe and a return pipe are respectively installed on the back of the circulation frame.

9. The injection mold device for precisely adjusting the thickness of a mold cavity according to claim 1, characterized in that, A delivery component and a filtering component are respectively installed on the back of the injection platform. The delivery component includes a support shell and a delivery component. A first connecting pipe is installed at the outlet of the delivery component. The filtering component includes a filtering box and an intercepting component. A second connecting pipe is installed on one side of the filtering box.

10. An injection molding method for an injection mold that precisely adjusts the thickness of a mold cavity, characterized in that, Including the injection mold for precisely adjusting the thickness of the mold cavity according to any one of claims 1-9, the injection method of the injection mold for precisely adjusting the thickness of the mold cavity when injecting requires the injection mold for precisely adjusting the thickness of the mold cavity, including the following steps: S1: First, install the fixed mold on the top of the injection molding table through the installation component. At the same time, install the moving mold on the telescopic end of the lifting component through the docking component. The top of the moving mold is rotatably connected with four rotating shafts with second bevel gears at both ends through four rotating frames. At the same time, the first bevel gears are rotatably connected to the positions near the four corners of the top of the moving mold. And make the second bevel gears at one end of the four rotating shafts mesh with the four first bevel gears. And install a driving component with a driving bevel gear on the top of the moving mold through the fixed shell. And make the driving bevel gear mesh with the second bevel gears at the other ends of the four rotating shafts. When the driving component drives the four rotating shafts to rotate, the four first bevel gears can be driven to rotate synchronously; S2: And at the positions near the four corners of the top of the template, ball screws are rotatably connected through rotating buckles. At the same time, make the ball screws penetrate through the first bevel gears and thread-connect the two. By rotating the four ball screws, the template can be driven to adjust its position inside the fixed mold, so as to adjust the thickness of the injection mold cavity; S3: During the actual use process, when it is necessary to adjust the thickness of the injection mold cavity, only need to start the driving component to rotate forward and backward according to the requirements. Thus, the four second bevel gears are driven to rotate through the driving bevel gear. Then the four rotating shafts can be driven to rotate synchronously. During the rotation of the rotating shafts, the four first bevel gears can be driven to rotate synchronously. Thus, the ball screws are driven to move up and down. During this process, according to the length of the up and down movement of the ball screws, the moving distance of the template can be accurately obtained. After the distance adjustment of the template is completed, the raw material can be injected between the fixed mold and the template through the insertion pipe on the injection pipe through the conveying structure, and then cooled and formed. After the forming is completed, only need to start the lifting component to drive the moving mold and the template to move upward, and the formed product can be taken out from the inside of the fixed mold.

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