A laminated mold and a method for using the same

Abstract

The application discloses a kind of laminated mould and its using method, including mould frame assembly, multiple groups of screw rod translation components, multiple groups of mould components and multiple groups of counterweight components, wherein, mould frame assembly includes frame body and is sequentially arranged on the surface of frame body upper male die frame, upper female die frame, lower male die frame and lower female die frame;Multiple groups of screw rod translation components are respectively arranged in the bottom of upper male die frame, the top of upper female die frame, the bottom of lower male die frame and the top of lower female die frame, and multiple groups of counterweight components are respectively arranged in the top of upper male die frame, the bottom of upper female die frame, the top of lower male die frame and the bottom of lower female die frame, and one end of multiple groups of counterweight components is respectively connected with one end of multiple groups of screw rod translation components.

Description

Technical Field

[0001] This invention relates to the technical field of molds, and more particularly to a stacking mold and its method of use. Background Technology

[0002] Stack molds are a cutting-edge technology in the development of plastic molds today. Unlike ordinary injection molds, they can mold multiple products at the same time. The cavities of multiple products are distributed on two or more layers and are arranged in an overlapping manner. Therefore, compared with ordinary injection molds, stack molds greatly improve production efficiency and equipment utilization, and reduce costs. As a result, stack molds are widely used in the injection molding of small products such as bottle caps. However, existing stacked molds have some problems and limitations. For example, the mold base and frame are usually designed as a single piece. While this design simplifies the mold structure, it also leads to the limited functionality of the mold. Once it is necessary to manufacture items of different shapes or sizes, the entire mold must be replaced and a new mold installed. This process is not only time-consuming and labor-intensive, but also reduces production efficiency and increases production costs. Summary of the Invention

[0003] The present invention aims to at least partially solve one of the technical problems in the related art.

[0004] Therefore, the purpose of this invention is to provide a stacked mold and its usage method. By installing multiple mold bases on the same frame, and each mold base can be used independently to manufacture items of different shapes or sizes, when different items need to be manufactured, it is only necessary to simply switch the current mold base to another mold base, without disassembling and reinstalling the entire mold, which effectively improves production efficiency and reduces production costs.

[0005] To achieve the above objectives, the present invention proposes a stacked mold, comprising a mold frame assembly, multiple sets of lead screw translation assemblies, multiple sets of mold assemblies, and multiple sets of counterweight assemblies, wherein, The mold frame assembly includes a frame and an upper punch frame, an upper concave mold frame, a lower punch frame, and a lower concave mold frame sequentially arranged on the surface of the frame; Multiple sets of the aforementioned lead screw translation components are respectively disposed at the bottom of the upper punch frame, the top of the upper die frame, the bottom of the lower punch frame, and the top of the lower die frame, and their positions correspond to each other; Multiple sets of the aforementioned counterweight components are respectively disposed at the top of the upper punch frame, the bottom of the upper die frame, the top of the lower punch frame, and the bottom of the lower die frame, and their positions correspond to each other; The lower mold bases in the multiple sets of mold assemblies are respectively located on the top of the upper concave mold frame and on the surface of the lead screw translation assembly located on the top of the lower concave mold frame; The upper mold bases in the multiple sets of mold assemblies are respectively located on the bottom of the upper punch frame and on the surface of the lead screw translation assembly located at the bottom of the lower punch frame; multiple mold bases are installed on the same frame; One end of each of the multiple sets of counterweight components is connected to one end of each of the multiple sets of lead screw translation components, and the counterweight component includes a counterweight base; The weight of the counterweight set on the upper die frame is the same as the total weight of the lower die set on the upper die frame; The weight of the counterweight set on the upper punch frame is the same as the total weight of the upper die holder set on the upper punch frame; The weight of the counterweight set on the lower die frame is the same as the total weight of the lower die base set on the lower die frame; The weight of the counterweight seat set on the lower punch frame is the same as the total weight of the upper die seat set on the lower punch frame; The multiple sets of upper mold bases are respectively positioned corresponding to the multiple sets of lower mold bases, and their external dimensions are compatible. During die cutting, the lead screw translation component simultaneously drives multiple sets of die assemblies to move to one side, while simultaneously driving multiple sets of counterweight components to move in the opposite direction to the multiple sets of die assemblies, so that the weight distribution of the upper punch frame, the upper concave die frame, the lower punch frame, and the lower concave die frame remains balanced.

[0006] The present invention provides a stacked mold in which multiple mold bases are installed on the same frame, and each mold base can be independently used to manufacture articles of different shapes or sizes. When different articles need to be manufactured, the current mold base can be simply switched to another mold base without disassembling and reinstalling the entire mold, which effectively improves production efficiency and reduces production costs.

[0007] In addition, the stacking mold proposed in the above application may also have the following additional technical features: Specifically, hydraulic telescopic columns are connected between the top of the upper punch frame and the surface of the frame, and between the bottom of the lower die frame and the surface of the frame, respectively. The two sets of hydraulic telescopic columns are electrically connected to an external controller.

[0008] Specifically, an intermediate fixing plate is fixedly connected to the center of the frame surface and is located between the upper concave mold frame and the lower convex mold frame. The bottom of the upper concave mold frame and the top of the lower convex mold frame are fixedly connected to the top and bottom of the intermediate fixing plate, respectively.

[0009] Specifically, a gear synchronization mechanism is symmetrically arranged on the outer surface of the intermediate fixed plate. The gear synchronization mechanism includes a rotating gear, an upper tooth slide bar, and a lower tooth slide bar. The rotating gear is rotatably connected to the outer surface of the intermediate fixed plate; The upper tooth slide bar and the lower tooth slide bar are slidably connected to the outer surface of the intermediate fixed plate and are located outside the rotating gear; One end of the upper toothed slide bar is fixedly connected to the surface of the upper punch frame, and the other end meshes with the rotating gear; One end of the lower tooth slide bar is fixedly connected to the surface of the lower die frame, and the other end meshes with the rotating gear.

[0010] Specifically, the lead screw translation assembly includes a first groove, a first threaded lead screw, a first limiting guide rod, a dual-axis motor, a counterweight, a transmission gear, and an encoder, wherein... The first groove is respectively formed at the bottom of the upper punch frame, the top of the upper die frame, the bottom of the lower punch frame, and the top of the lower die frame; The first threaded screw is rotatably connected to the inner wall of the first groove; The first limiting guide rod is symmetrically fixedly connected to the inner wall of the first groove and located outside the first threaded rod; The lower mold base and the upper mold base are respectively threaded to the outer surface of the first threaded screw and slidably connected to the outer surface of the first limiting guide rod; The dual-axis motor and the counterweight are respectively disposed inside the upper punch frame, the upper die frame, the lower punch frame, and the lower die frame, and are located at both ends of the first threaded screw; One end of the dual-axis motor is connected to one end of the first threaded screw, and the other end of the dual-axis motor is fixedly connected to the transmission gear, which meshes with one end of the counterweight assembly. The encoder is mounted on the surface of the dual-axis motor, and the encoder and the dual-axis motor are electrically connected to an external controller.

[0011] Specifically, the counterweight assembly further includes a second groove, a second threaded screw, a second limiting guide rod, and a synchronizing gear, wherein, The second groove is respectively formed at the top of the upper punch frame, the bottom of the upper die frame, the top of the lower punch frame, and the bottom of the lower die frame; The second threaded screw is rotatably connected to the inner wall of the second groove; The second limiting guide rod is symmetrically and fixedly connected to the inner wall of the second groove and located outside the second threaded rod; The counterweight seat is threadedly connected to the outer surface of the second threaded screw and slidably connected to the outer surface of the second limiting guide rod; One end of each of the second threaded screws passes through the interior of the upper punch frame, the interior of the upper die frame, the interior of the lower punch frame, and the interior of the lower die frame, and is fixedly connected to the synchronizing gear. The synchronizing gear is located on one side of the transmission gear and meshes with the transmission gear.

[0012] Specifically, the lower mold base surface and the upper mold base surface are respectively provided with concave cavities and convex seats at corresponding positions. The number of concave cavities and convex seats are equal and their external dimensions are compatible. Each cavity is equipped with a pneumatic ejection mechanism on its inner wall.

[0013] Specifically, each of the lower mold base surfaces is provided with a pneumatic connector, which is connected to the pneumatic ejection mechanism; The upper and lower concave mold frames are respectively provided with sliding grooves to facilitate the sliding of the pneumatic connector.

[0014] The method of using this stacking mold includes the following steps: S1. Die cutting: Control multiple sets of lead screw translation components to operate synchronously. The operation of multiple sets of lead screw translation components synchronously drives three sets of mold components to move to one side, and at the same time, it also drives multiple sets of counterweight components to move in the opposite direction of the three sets of mold components. The operation of multiple sets of counterweight components adjusts the weight of the upper punch frame, upper die frame, lower punch frame and lower die frame respectively, so that the weight of the frame remains balanced. S2, weight distribution: the rotation of the transmission gear synchronously drives the rotation of the synchronous gear, which in turn drives the rotation of the second threaded screw. The rotation of the second threaded screw synchronously drives the counterweight to move to one side along the outer surface of the second threaded screw and the outer surface of the second limiting guide rod. In the initial state, the counterweight base corresponds to the middle set of lower mold bases and the middle set of upper mold bases. When the lower mold bases and upper mold bases on the right move to the middle position, the counterweight base moves to the right to balance the weight of the frame. When the lower mold bases and upper mold bases on the left move to the middle position, the counterweight base moves to the left to balance the weight of the frame. S3. Mold closing: The hydraulic telescopic column drives the upper punch frame and the lower die frame to move, thereby achieving mold closing. S4. Demolding: The pneumatic ejection mechanism ejects the product from the cavity.

[0015] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

[0016] In summary, the technical effects and advantages of this invention are as follows: The device has a reasonable structure. By installing multiple mold bases on the same frame, each mold base can be independently used to manufacture items of different shapes or sizes. When different items need to be manufactured, the current mold base can be easily switched to another mold base by means of the lead screw translation component. There is no need to disassemble and reinstall the entire mold, which effectively improves production efficiency and reduces production costs. The device is equipped with a counterweight component, which is used to adjust the weight of the frame after the mold base is moved, so that the overall weight of the frame is balanced and the performance is good. Attached Figure Description

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein: Figure 1 This is a schematic diagram of the structure of a stacked mold and its usage method according to the present invention; Figure 2 This is a schematic diagram of the gear synchronization mechanism in a stacked mold and its usage method according to the present invention; Figure 3 This is a schematic diagram of the lead screw translation component in a stacked mold and its usage method according to the present invention; Figure 4 This is a schematic diagram of the lower mold base structure in a stacked mold and its usage method according to the present invention; Figure 5 This is a schematic diagram of the boss structure in a stacked mold and its usage method according to the present invention; Figure 6 This is a schematic diagram of the counterweight component structure in a stacked mold and its usage method according to the present invention; Figure 7 This is a schematic diagram of the transmission gear structure in a stacked mold and its usage method according to the present invention.

[0018] As shown in the figure: 1. Mold frame assembly; 2. Lead screw translation assembly; 3. Mold assembly; 4. Counterweight assembly; 11. Frame; 15. Upper punch frame; 13. Upper die frame; 14. Lower punch frame; 16. Lower die frame; 31. Lower mold base; 32. Upper mold base; 17. Hydraulic telescopic column; 12. Intermediate fixing plate; 18. Gear synchronization mechanism; 181. Rotary gear; 182. Upper tooth slide bar; 183. Lower tooth slide bar; 20. First groove; 21. First threaded screw; 22. First limiting guide rod; 23. Dual-axis motor; 24. Counterweight; 25. Transmission gear; 26. Encoder; 40. Second groove; 41. Second threaded rod; 42. Second limiting guide rod; 43. Counterweight seat; 44. Synchronizing gear; 33. Cavity; 34. Protrusion; 35. Pneumatic ejection mechanism; 36. Pneumatic connector; 37. Slide groove. Detailed Implementation

[0019] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the invention, and should not be construed as limiting the invention. Rather, embodiments of the invention include all variations, modifications, and equivalents falling within the spirit and scope of the appended claims.

[0020] The following description, in conjunction with the accompanying drawings, illustrates an embodiment of the present invention: a stacking mold and its usage method.

[0021] like Figures 1-7 As shown, a stacked mold according to an embodiment of the present invention may include a mold frame assembly 1, multiple sets of lead screw translation assemblies 2, multiple sets of mold assemblies 3, and multiple sets of counterweight assemblies 4.

[0022] The mold frame assembly 1 includes a frame 11 and an upper punch frame 15, an upper die frame 13, a lower punch frame 14 and a lower die frame 16 sequentially arranged on the surface of the frame 11. Multiple sets of lead screw translation components 2 are respectively set at the bottom of the upper punch frame 15, the top of the upper die frame 13, the bottom of the lower punch frame 14, and the top of the lower die frame 16, and their positions are corresponding; Multiple sets of counterweight components 4 are respectively set at the top of the upper punch frame 15, the bottom of the upper die frame 13, the top of the lower punch frame 14, and the bottom of the lower die frame 16, and their positions are corresponding. The lower mold base 31 in the multiple mold assembly 3 is located on the top of the upper mold frame 13 and on the surface of the lead screw translation assembly 2 located on the top of the lower mold frame 16, respectively; The upper mold base 32 in the multiple mold assembly 3 is located at the bottom of the upper punch frame 15 and at the bottom of the lower punch frame 14 on the surface of the lead screw translation assembly 2; multiple mold bases are installed on the same frame; One end of each of the multiple sets of counterweight components 4 is connected to one end of each of the multiple sets of lead screw translation components 2. The counterweight component 4 includes a counterweight seat 43. The weight of the counterweight 43 set on the upper die frame 13 is the same as the total weight of the lower die base 31 set on the upper die frame 13; The weight of the counterweight 43 set on the upper punch frame 15 is the same as the total weight of the upper die holder 32 set on the upper punch frame 15. The weight of the counterweight 43 set on the lower die frame 16 is the same as the total weight of the lower die base 31 set on the lower die frame 16; The weight of the counterweight 43 set on the lower punch frame 14 is the same as the total weight of the upper die holder 32 set on the lower punch frame 14; Multiple sets of upper mold bases 32 correspond to multiple sets of lower mold bases 31 in position and are compatible in shape and size.

[0023] It should be noted that mold component 3 is set into three groups.

[0024] During die cutting, the lead screw translation component 2 simultaneously drives multiple sets of die components 3 to move to one side, while simultaneously driving multiple sets of counterweight components 4 to move in the opposite direction of multiple sets of die components 3, so that the weight distribution of the upper punch frame 15, upper die frame 13, lower punch frame 14 and lower die frame 16 remains balanced.

[0025] It should also be noted that the multiple sets of lead screw translation components 2 and the multiple sets of mold components 3 are electrically connected to the external controller.

[0026] Specifically, when die cutting is required, multiple sets of lead screw translation components 2 are controlled by an external controller to operate synchronously. The operation of the multiple sets of lead screw translation components 2 synchronously drives the three sets of die components 3 to move to one side, while simultaneously driving multiple sets of counterweight components 4 to move in the opposite direction to the three sets of die components 3. The operation of the multiple sets of counterweight components 4 adjusts the weight of the upper punch frame 15, the upper die frame 13, the lower punch frame 14, and the lower die frame 16 respectively, so that the weight is evenly distributed and the die is used effectively.

[0027] By installing multiple mold bases on the same frame, and each mold base can be used independently to manufacture items of different shapes or sizes, when different items need to be manufactured, the current mold base can be simply switched to another mold base without disassembling and reinstalling the entire mold, which effectively improves production efficiency and reduces production costs.

[0028] In one embodiment of the present invention, such as Figure 1 As shown, hydraulic telescopic columns 17 are connected between the top of the upper punch frame 15 and the surface of the frame 11, and between the bottom of the lower die frame 16 and the surface of the frame 11, respectively. The two sets of hydraulic telescopic columns 17 are electrically connected to an external controller.

[0029] It should be noted that the hydraulic telescopic column 17 described in this embodiment is used to drive the upper punch frame 15 and the lower die frame 16 to move, thereby realizing mold closing.

[0030] Understandably, in actual use, if it is not possible to ensure that the two sets of hydraulic telescopic columns 17 operate synchronously, one set of hydraulic telescopic columns 17 can be set up for use. By cooperating with the gear synchronization mechanism 18, the mold closing operation can also be achieved.

[0031] In one embodiment of the present invention, such as Figure 1As shown, a middle fixing plate 12 is fixedly connected to the center of the surface of the frame 11 and is located between the upper concave mold frame 13 and the lower convex mold frame 14. The bottom of the upper concave mold frame 13 and the top of the lower convex mold frame 14 are fixedly connected to the top and bottom of the middle fixing plate 12, respectively.

[0032] It should be noted that the intermediate fixing plate 12 described in this embodiment is used to fix the upper concave mold frame 13, the lower convex mold frame 14 and the gear synchronization mechanism 18 respectively.

[0033] In one embodiment of the present invention, such as Figure 2 As shown, a gear synchronization mechanism 18 is symmetrically arranged on the outer surface of the intermediate fixed plate 12. The gear synchronization mechanism 18 includes a rotating gear 181, an upper tooth slide bar 182, and a lower tooth slide bar 183.

[0034] The rotating gear 181 is rotatably connected to the outer surface of the intermediate fixed plate 12. The upper tooth slide rod 182 and the lower tooth slide rod 183 are slidably connected to the outer surface of the intermediate fixed plate 12 and located outside the rotating gear 181. One end of the upper tooth slide rod 182 is fixedly connected to the surface of the upper punch frame 15, and the other end is meshed with the rotating gear 181. One end of the lower tooth slide rod 183 is fixedly connected to the surface of the lower die frame 16, and the other end is meshed with the rotating gear 181.

[0035] It should be noted that the gear synchronization mechanism 18 described in this embodiment is used to ensure that the upper punch frame 15 and the lower die frame 16 move synchronously.

[0036] It should also be noted that a sleeve frame (not shown in the figure) is symmetrically fixedly connected to the outer surface of the intermediate fixing plate 12, and one end of the upper tooth slide rod 182 and the lower tooth slide rod 183 are respectively slidably connected to the inner wall of the sleeve frame.

[0037] Specifically, the movement of the upper punch frame 15 synchronously drives the upper tooth slide rod 182 to move, the movement of the upper tooth slide rod 182 synchronously drives the rotating gear 181 to rotate, and the rotation of the rotating gear 181 synchronously drives the lower tooth slide rod 183 and the lower die frame 16 to move downward.

[0038] In one embodiment of the present invention, such as Figure 3 and Figure 7 As shown, the lead screw translation assembly 2 may include a first groove 20, a first threaded lead screw 21, a first limiting guide rod 22, a dual-axis motor 23, a counterweight 24, a transmission gear 25, and an encoder 26.

[0039] The first groove 20 is respectively formed at the bottom of the upper punch frame 15, the top of the upper die frame 13, the bottom of the lower punch frame 14, and the top of the lower die frame 16. The first threaded screw 21 is rotatably connected to the inner wall of the first groove 20. The first limiting guide rod 22 is symmetrically fixedly connected to the inner wall of the first groove 20 and located outside the first threaded screw 21. The lower die holder 31 and the upper die holder 32 are respectively threaded to the outer surface of the first threaded screw 21 and slidably connected to the outer surface of the first limiting guide rod 22. The dual-axis motor 23 and The counterweights 24 are respectively installed inside the upper punch frame 15, the upper die frame 13, the lower punch frame 14, and the lower die frame 16, and are located at both ends of the first threaded screw 21. One end of the dual-axis motor 23 is connected to one end of the first threaded screw 21, and the other end of the dual-axis motor 23 is fixedly connected to a transmission gear 25. The transmission gear 25 meshes with one end of the counterweight assembly 4. The encoder 26 is installed on the surface of the dual-axis motor 23. The encoder 26 and the dual-axis motor 23 are electrically connected to an external controller.

[0040] It should be noted that the encoder 26 described in this embodiment is used to detect the number of rotations of the dual-axis motor 23 in real time and send the data information to an external controller, which then determines the moving positions of the lower mold base 31 and the upper mold base 32 based on the number of rotations.

[0041] Specifically, the dual-axis motor 23 is powered on and operated by an external controller. The operation of the dual-axis motor 23 synchronously drives the transmission gear 25 and the first threaded screw 21 to rotate. The rotation of the transmission gear 25 synchronously drives the synchronous gear 44 to rotate. The rotation of the synchronous gear 44 synchronously drives the second threaded screw 41 to rotate. The rotation of the second threaded screw 41 synchronously drives the counterweight 43 to move to one side along the outer surface of the second threaded screw 41 and the outer surface of the second limiting guide rod 42. The rotation of the first threaded screw 21 synchronously drives the lower mold base 31 and the upper mold base 32 to move to one side along the outer surface of the first threaded screw 21 and the outer surface of the first limiting guide rod 22. This reverse direction is opposite to the movement direction of the counterweight 43.

[0042] In one embodiment of the present invention, such as Figures 6-7 As shown, the counterweight assembly also includes a second groove 40, a second threaded screw 41, a second limiting guide rod 42, and a synchronizing gear 44.

[0043] The second grooves 40 are respectively formed on the top of the upper punch frame 15, the bottom of the upper die frame 13, the top of the lower punch frame 14, and the bottom of the lower die frame 16. The second threaded rod 41 is rotatably connected to the inner wall of the second groove 40. The second limiting guide rod 42 is symmetrically fixedly connected to the inner wall of the second groove 40 and located outside the second threaded rod 41. The counterweight 43 is threadedly connected to the outer surface of the second threaded rod 41 and slidably connected to the outer surface of the second limiting guide rod 42. One end of the multiple second threaded rods 41 respectively penetrates into the interior of the upper punch frame 15, the upper die frame 13, the lower punch frame 14, and the lower die frame 16, and is fixedly connected to a synchronous gear 44. The synchronous gear 44 is located on one side of the transmission gear 25 and meshes with the transmission gear 25.

[0044] It should be noted that the weight of the counterweight 43 described in this embodiment is the same as the weight of the three sets of lower mold bases 31 and the weight of the three sets of upper mold bases 32.

[0045] It should also be noted that the moving speed of the counterweight 43 on the surface of the second threaded screw 41 and the moving speed of the lower die holder 31 and the upper die holder 32 on the surface of the first threaded screw 21 can be adjusted by changing the tooth module.

[0046] Specifically, the rotation of the transmission gear 25 synchronously drives the rotation of the synchronization gear 44, the rotation of the synchronization gear 44 synchronously drives the rotation of the second threaded screw 41, and the rotation of the second threaded screw 41 synchronously drives the counterweight 43 to move to one side along the outer surface of the second threaded screw 41 and the outer surface of the second limiting guide rod 42.

[0047] In the initial state, the counterweight 43 corresponds to the middle set of lower mold bases 31 and the middle set of upper mold bases 32. When the lower mold bases 31 and upper mold bases 32 on the right move to the middle position, the counterweight 43 moves to the right to balance the weight of the frame and improve the injection molding effect. When the lower mold bases 31 and upper mold bases 32 on the left move to the middle position, the counterweight 43 moves to the left to balance the weight of the frame and improve the injection molding effect.

[0048] The travel and speed of the counterweight 43 on the second threaded screw 41 need to be adjusted to ensure uniform weight distribution.

[0049] In one embodiment of the present invention, such as Figure 4 As shown, the lower mold base 31 and the upper mold base 32 are respectively provided with a cavity 33 and a boss 34 at corresponding positions. The number of cavities 33 and bosses 34 are equal and their external dimensions are compatible. The inner wall of each cavity 33 is provided with a pneumatic ejection mechanism 35.

[0050] It should be noted that the cavity 33 and the protrusion 34 described in this embodiment can be set to different shapes, and the three sets of mold components 3 can manufacture three different items.

[0051] It should also be noted that the pneumatic ejection mechanism 35 is existing technology and will not be described in detail here. The pneumatic ejection mechanism 35 is adapted to the external dimensions of the cavity 33, and different shapes of cavities 33 correspond to different shapes of pneumatic ejection mechanisms 35.

[0052] In one embodiment of the present invention, such as Figure 4 As shown, pneumatic connectors 36 are provided on the surface of the lower mold base 31. The pneumatic connectors 36 are connected to the pneumatic ejection mechanism 35. The upper mold frame 13 and the lower mold frame 16 are respectively provided with sliding grooves 37 to facilitate the sliding of the pneumatic connectors 36.

[0053] It should be noted that the pneumatic connector 36 described in this embodiment is used to connect with an external air pipe, and the slide groove 37 is designed to facilitate the synchronous movement of the pneumatic connector 36 with the lower mold base 31, resulting in good performance.

[0054] How to use this stacking mold: S1. Cutting the die: Control the synchronous operation of multiple sets of lead screw translation components 2. The synchronous operation of multiple sets of lead screw translation components 2 drives the three sets of die components 3 to move to one side, and at the same time drives multiple sets of counterweight components 4 to move in the opposite direction of the three sets of die components 3. The operation of multiple sets of counterweight components 4 adjusts the weight of the upper punch frame 15, the upper die frame 13, the lower punch frame 14 and the lower die frame 16 respectively, so that the weight of the frame remains balanced. S2. Mold closing: The hydraulic telescopic column 17 drives the upper punch frame 15 and the lower die frame 16 to move, thereby realizing mold closing. S3, weight distribution: the rotation of the transmission gear 25 synchronously drives the synchronous gear 44 to rotate, which in turn drives the second threaded screw 41 to rotate. The rotation of the second threaded screw 41 synchronously drives the counterweight seat 43 to move to one side along the outer surface of the second threaded screw 41 and the outer surface of the second limiting guide rod 42. In the initial state, the counterweight 43 corresponds to the middle set of lower mold bases 31 and the middle set of upper mold bases 32. When the lower mold bases 31 and upper mold bases 32 on the right move to the middle position, the counterweight 43 moves to the right to balance the weight of the frame. When the lower mold bases 31 and upper mold bases 32 on the left move to the middle position, the counterweight 43 moves to the left to balance the weight of the frame. S4. Demolding: The pneumatic ejection mechanism 35 ejects the mold from the cavity 33. The working principle of this invention is as follows: When die cutting is required, multiple sets of lead screw translation components 2 are controlled by an external controller to operate synchronously. While the operation of the multiple sets of lead screw translation components 2 synchronously drives the three sets of die components 3 to move to one side, it also synchronously drives multiple sets of counterweight components 4 to move in the opposite direction of the three sets of die components 3. The operation of the multiple sets of counterweight components 4 adjusts the weight of the upper punch frame 15, the upper die frame 13, the lower punch frame 14, and the lower die frame 16 respectively, so that the weight is evenly distributed and the die performance is guaranteed. The operating principle of the lead screw translation assembly 2 and the counterweight assembly 4 is as follows: The dual-axis motor 23 is powered on and operated by an external controller. The operation of the dual-axis motor 23 synchronously drives the transmission gear 25 and the first threaded lead screw 21 to rotate. The rotation of the transmission gear 25 synchronously drives the synchronous gear 44 to rotate. The rotation of the synchronous gear 44 synchronously drives the second threaded lead screw 41 to rotate. The rotation of the second threaded lead screw 41 synchronously drives the counterweight seat 43 to move to one side along the outer surface of the second threaded lead screw 41 and the outer surface of the second limiting guide rod 42. The rotation of the first threaded screw 21 synchronously drives the lower mold base 31 and the upper mold base 32 to move to one side along the outer surface of the first threaded screw 21 and the outer surface of the first limiting guide rod 22. This reverse direction is opposite to the movement direction of the counterweight 43.

[0055] In summary, the stacked mold and its usage method of the present invention, by installing multiple mold bases on the same frame, and each mold base can be independently used to manufacture items of different shapes or sizes, when different items need to be manufactured, it is only necessary to simply switch the current mold base to another mold base, without disassembling and reinstalling the entire mold, which effectively improves production efficiency and reduces production costs.

[0056] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0057] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0058] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A stacking mold, characterized in that, It includes a mold frame assembly (1), multiple sets of lead screw translation assemblies (2), multiple sets of mold assemblies (3), and multiple sets of counterweight assemblies (4), among which, The mold frame assembly (1) includes a frame (11) and an upper punch frame (15), an upper concave mold frame (13), a lower punch frame (14) and a lower concave mold frame (16) sequentially arranged on the surface of the frame (11). Multiple sets of the lead screw translation components (2) are respectively arranged at the bottom of the upper punch frame (15), the top of the upper die frame (13), the bottom of the lower punch frame (14), and the top of the lower die frame (16), and their positions correspond to each other; Multiple sets of the counterweight components (4) are respectively disposed at the top of the upper punch frame (15), the bottom of the upper die frame (13), the top of the lower punch frame (14), and the bottom of the lower die frame (16), and their positions are corresponding; The lower mold base (31) in the multiple sets of mold assemblies (3) are respectively located on the top of the upper mold frame (13) and on the surface of the lead screw translation assembly (2) located on the top of the lower mold frame (16); The upper mold base (32) in the multiple sets of mold assemblies (3) are respectively located on the bottom of the upper punch frame (15) and on the surface of the lead screw translation assembly (2) located on the bottom of the lower punch frame (14); multiple mold bases are installed on the same frame; One end of each of the multiple sets of counterweight components (4) is connected to one end of each of the multiple sets of lead screw translation components (2), and the counterweight component (4) includes a counterweight seat (43); The weight of the counterweight (43) set on the upper die frame (13) is the same as the total weight of the lower die base (31) set on the upper die frame (13); The weight of the counterweight (43) set on the upper punch frame (15) is the same as the total weight of the upper die holder (32) set on the upper punch frame (15); The weight of the counterweight (43) set on the lower die frame (16) is the same as the total weight of the lower die base (31) set on the lower die frame (16); The weight of the counterweight (43) set on the lower punch frame (14) is the same as the total weight of the upper die holder (32) set on the lower punch frame (14); The multiple sets of upper mold bases (32) are respectively positioned corresponding to the multiple sets of lower mold bases (31), and their external dimensions are compatible; During die cutting, the lead screw translation component (2) simultaneously drives multiple sets of die components (3) to move to one side, and simultaneously drives multiple sets of counterweight components (4) to run in the opposite direction of multiple sets of die components (3), so that the weight distribution of the upper punch frame (15), the upper concave die frame (13), the lower punch frame (14) and the lower concave die frame (16) remains balanced.

2. The stacking mold according to claim 1, characterized in that, Hydraulic telescopic columns (17) are connected between the top of the upper punch frame (15) and the surface of the frame (11) and between the bottom of the lower die frame (16) and the surface of the frame (11), respectively. The two sets of hydraulic telescopic columns (17) are electrically connected to an external controller.

3. The stacking mold according to claim 1, characterized in that, A middle fixing plate (12) is fixedly connected at the center of the surface of the frame (11) and is located between the upper concave mold frame (13) and the lower convex mold frame (14). The bottom of the upper concave mold frame (13) and the top of the lower convex mold frame (14) are fixedly connected to the top of the middle fixing plate (12) and the bottom of the middle fixing plate (12), respectively.

4. The stacking mold according to claim 3, characterized in that, The outer surface of the intermediate fixed plate (12) is symmetrically provided with gear synchronization mechanisms (18), which include a rotating gear (181), an upper tooth slide bar (182), and a lower tooth slide bar (183). The rotating gear (181) is rotatably connected to the outer surface of the intermediate fixed plate (12); The upper tooth slide bar (182) and the lower tooth slide bar (183) are slidably connected to the outer surface of the intermediate fixed plate (12) and located outside the rotating gear (181); One end of the upper toothed slide bar (182) is fixedly connected to the surface of the upper punch frame (15), and the other end is meshed with the rotating gear (181); One end of the lower tooth slide bar (183) is fixedly connected to the surface of the lower die frame (16), and the other end meshes with the rotating gear (181).

5. The stacking mold according to claim 1, characterized in that, The lead screw translation assembly (2) includes a first groove (20), a first threaded lead screw (21), a first limiting guide rod (22), a dual-axis motor (23), a counterweight (24), a transmission gear (25), and an encoder (26), wherein, The first groove (20) is respectively opened at the bottom of the upper punch frame (15), the top of the upper die frame (13), the bottom of the lower punch frame (14) and the top of the lower die frame (16); The first threaded screw (21) is rotatably connected to the inner wall of the first groove (20); The first limiting guide rod (22) is symmetrically fixedly connected to the inner wall of the first groove (20) and located outside the first threaded rod (21); The lower mold base (31) and the upper mold base (32) are respectively threaded to the outer surface of the first threaded screw (21) and slidably connected to the outer surface of the first limiting guide rod (22); The dual-axis motor (23) and the counterweight (24) are respectively disposed inside the upper punch frame (15), the upper die frame (13), the lower punch frame (14) and the lower die frame (16), and are located at both ends of the first threaded screw (21); One end of the dual-axis motor (23) is connected to one end of the first threaded screw (21), and the other end of the dual-axis motor (23) is fixedly connected to the transmission gear (25), which meshes with one end of the counterweight assembly (4). The encoder (26) is disposed on the surface of the dual-axis motor (23), and the encoder (26) and the dual-axis motor (23) are electrically connected to an external controller.

6. The stacking mold according to claim 5, characterized in that, The counterweight assembly (4) further includes a second groove (40), a second threaded screw (41), a second limiting guide rod (42), and a synchronizing gear (44), wherein, The second groove (40) is respectively opened on the top of the upper punch frame (15), the bottom of the upper die frame (13), the top of the lower punch frame (14), and the bottom of the lower die frame (16); The second threaded screw (41) is rotatably connected to the inner wall of the second groove (40); The second limiting guide rod (42) is symmetrically fixedly connected to the inner wall of the second groove (40) and located outside the second threaded rod (41); The counterweight (43) is threaded to the outer surface of the second threaded screw (41) and slidably connected to the outer surface of the second limiting guide rod (42); One end of each of the second threaded screws (41) passes through the interior of the upper punch frame (15), the interior of the upper die frame (13), the interior of the lower punch frame (14), and the interior of the lower die frame (16), and is fixedly connected to the synchronous gear (44). The synchronous gear (44) is located on one side of the transmission gear (25) and meshes with the transmission gear (25).

7. The stacking mold according to claim 1, characterized in that, The lower mold base (31) and the upper mold base (32) are respectively provided with a cavity (33) and a protrusion (34) at corresponding positions. The number of cavities (33) and protrusions (34) are equal and their external dimensions are compatible. The inner wall of each cavity (33) is provided with a pneumatic ejection mechanism (35).

8. The stacking mold according to claim 7, characterized in that, The lower mold base (31) is provided with pneumatic connectors (36) on its surface, and the pneumatic connectors (36) are connected to the pneumatic ejection mechanism (35); The upper concave mold frame (13) and the lower concave mold frame (16) are respectively provided with sliding grooves (37) to facilitate the sliding of the pneumatic connector (36).

9. A method of using a stacking mold, characterized in that, Includes using a stacking mold as described in any one of claims 1 to 8, and includes the following steps: S1. Cutting the die, controlling multiple sets of lead screw translation components (2) to run synchronously. The operation of multiple sets of lead screw translation components (2) synchronously drives the three sets of die components (3) to move to one side, and at the same time, it also drives multiple sets of counterweight components (4) to run in the opposite direction of the three sets of die components (3). The operation of multiple sets of counterweight components (4) adjusts the weight of the upper punch frame (15), upper die frame (13), lower punch frame (14) and lower die frame (16) respectively, so that the weight of the frame remains balanced. S2, weight distribution, the transmission gear (25) rotates synchronously to drive the synchronous gear (44) to rotate, which in turn drives the second threaded screw (41) to rotate. The rotation of the second threaded screw (41) synchronously drives the counterweight (43) to move to one side along the outer surface of the second threaded screw (41) and the outer surface of the second limiting guide rod (42). In the initial state, the counterweight (43) corresponds to the middle set of lower mold bases (31) and the middle set of upper mold bases (32). When the lower mold bases (31) and upper mold bases (32) on the right move to the middle position, the counterweight (43) moves to the right to balance the weight of the frame. When the lower mold bases (31) and upper mold bases (32) on the left move to the middle position, the counterweight (43) moves to the left to balance the weight of the frame. S3. Mold closing: The hydraulic telescopic column (17) drives the upper punch frame (15) and the lower die frame (16) to move, thereby realizing mold closing; S4. Demolding: The pneumatic ejection mechanism (35) ejects the product from the cavity (33).

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