A modular assembly mold facilitating demolding

Abstract

The utility model discloses a modularization combined mould convenient to demould, including lower mould and upper die, the inner surface of upper die is installed with upper mould, the top surface of lower mould is established with the slot, is provided with demoulding subassembly in the slot, is established with the placement cavity on the lower mould, is provided with lower mould in the placement cavity, is provided with respectively setting up lifting subassembly and reinforcing component in the lower mould, the lifting subassembly includes the electric push rod of fixed connection in the lower mould lateral wall, the output fixedly connected with the slide of electric push rod, the inside fixedly connected with the support of lower mould. The utility model does not need staff to pry lower mould with additional tools, can drive relevant parts automatically complete the unlocking of lower mould, lifting and positioning fixed with electric push rod, not only avoids the scratch of tool to lower mould or the inner wall of placement cavity, but also greatly reduces the labor intensity of staff, shortens the replacement time of lower mould, improves the versatility and use flexibility of mould.

Description

Technical Field

[0001] This utility model relates to the field of mold processing technology, and in particular to a modular combination mold that is easy to demold. Background Technology

[0002] In modern industrial production, mold processing technology is widely used in many fields such as automobile manufacturing and home appliance production. Among them, modular combination molds have become important equipment for dealing with the production of multi-specification and multi-variety workpieces due to their ability to be flexibly assembled according to workpiece requirements and adapted to different molding scenarios. Especially against the backdrop of the increasing demand for small-batch and customized production, their application scope continues to expand.

[0003] Currently available modular combination molds employ an embedded installation structure, placing the lower mold directly inside the lower mold's placement cavity and securing it with bolts. However, this installation method presents challenges when replacing the lower mold. Since the top surface of the lower mold is often flush with or slightly lower than the top surface of the lower mold, it lacks effective gripping and force-bearing points. Workers must use additional tools to pry it out through the gap between the lower mold and the placement cavity. During this process, the tools are highly likely to scratch the inner wall of the lower mold cavity or the mating surfaces of the placement cavity, affecting the subsequent workpiece forming accuracy. Furthermore, the prying operation relies entirely on manual experience, making it not only cumbersome and time-consuming but also significantly increasing the workload for workers.

[0004] Accordingly, this application proposes a modular combination mold that facilitates demolding. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a modular combination mold that facilitates demolding.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A modular combination mold for easy demolding includes a lower mold and an upper mold. The upper mold is mounted on the inner surface of the upper mold. The top surface of the lower mold has a slot, and a demolding component is disposed in the slot. The lower mold has a placement cavity, and the lower mold is disposed in the placement cavity. The lower mold has a lifting component and a reinforcing component respectively disposed therein. The lifting component includes an electric push rod fixedly connected to the side wall of the lower mold. The output end of the electric push rod is fixedly connected to a slide rod. A support is fixedly connected inside the lower mold. The slide rod is slidably connected to the support. The slide rod has multiple toothed grooves.

[0008] Preferably, a rotating rod is rotatably connected inside the lower mold, and a first gear and a second gear are fixedly connected to both ends of the rotating rod, respectively. The first gear is placed inside the lower mold and rotates, while the second gear is placed inside the placement cavity and rotates. The first gear meshes with the tooth groove.

[0009] Preferably, a support column is fixedly connected to the inner surface of the placement cavity, the support column is hollow inside, a toothed rod is slidably connected inside the support column, a torsion spring is fixedly connected to the bottom end of the toothed rod, and the torsion spring is fixedly connected to the inner wall of the support column.

[0010] Preferably, the rack meshes with the second gear, and a cross plate is fixedly connected to the top end of the rack, with mounting holes provided on the cross plate.

[0011] Preferably, the demolding assembly includes an insert plate fixedly connected to the bottom end of the upper mold, the insert plate being inserted into a slot, a telescopic rod being fixedly connected to the inner wall of the slot, a connecting plate being fixedly connected to the telescopic end of the telescopic rod, a spring being fixedly connected to the bottom surface of the connecting plate, and the end of the spring away from the connecting plate being fixedly connected to the slot.

[0012] Preferably, a push rod is fixedly connected to the top surface of the connecting plate, and a through hole is provided on the lower mold, with the push rod inserted into the through hole.

[0013] Preferably, the reinforcing component includes a toothed plate fixedly connected to the slide bar, a support shaft fixedly connected inside the lower mold, and a third gear rotatably connected to the top surface of the support shaft, the third gear meshing with the toothed plate.

[0014] Preferably, the third gear is threaded with a threaded rod, the threaded rod is slidably connected to the support shaft, the threaded rod is slidably connected to the lower mold, and a shaped block is fixedly connected to one end of the threaded rod near the placement cavity.

[0015] Preferably, a guide rod is fixedly connected to the bottom end of the lower mold, the guide rod is inserted into the mounting hole, and an irregular groove is opened on the lower mold, the irregular groove is inserted into the irregular block.

[0016] Preferably, the slot is U-shaped and located inside the lower mold.

[0017] This utility model has the following beneficial effects:

[0018] 1. This utility model eliminates the need for workers to pry the lower mold with additional tools. The lower mold can be automatically unlocked, lifted, and positioned by an electric push rod that drives the relevant parts. This not only avoids scratching the lower mold or the inner wall of the placement cavity with tools, but also significantly reduces the labor intensity of workers, shortens the replacement time of the lower mold, and improves the versatility and flexibility of the mold.

[0019] 2. This utility model can effectively improve the convenience and safety of workpiece demolding, avoid the situation where the workpiece is difficult to remove or the workpiece is damaged due to adhesion to the inner wall of the lower mold cavity after molding, and significantly improve the finished product qualification rate and processing efficiency. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a modular combination mold that is easy to demold, as proposed in this utility model.

[0021] Figure 2 This is a schematic diagram of the upper mold in this utility model;

[0022] Figure 3 This is a schematic diagram of the internal cross-sectional structure of the lower mold in this utility model;

[0023] Figure 4 This is a schematic diagram of the connection structure between the reinforcing component and the lifting component in this utility model;

[0024] Figure 5 This is a schematic diagram of the connection structure of some lifting component parts in this utility model;

[0025] Figure 6 This is a schematic diagram of the connection structure between the lower mold and the reinforcing components in this utility model;

[0026] Figure 7 This is a schematic diagram of the connection structure between the lower mold and the demolding assembly in this utility model.

[0027] In the diagram: 1. Lower mold; 2. Upper mold; 3. Upper die; 4. Slot; 5. Demolding assembly; 51. Insert plate; 52. Telescopic rod; 53. Spring; 54. Connecting plate; 55. Push rod; 56. Through hole; 6. Placement cavity; 7. Lower mold; 71. Irregular groove; 8. Lifting assembly; 81. Electric push rod; 82. Slide rod; 83. Support; 84. Gear groove; 85. Rotating rod; 86. First gear; 861. Second gear; 87. Support column; 88. Gear rack; 89. Torsion spring; 810. Horizontal plate; 811. Mounting hole; 9. Reinforcing assembly; 91. Gear plate; 92. Support shaft; 93. Third gear; 94. Threaded rod; 95. Irregular block; 96. Guide rod. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0029] Example 1:

[0030] Reference Figure 1 - Figure 2 , Figure 7A modular combination mold for easy demolding includes a lower mold 1 and an upper mold 2. An upper mold 3 is installed on the inner surface of the upper mold 2. A slot 4 is opened on the top surface of the lower mold 1. The slot 4 is U-shaped and is located inside the lower mold 1. A demolding component 5 is provided inside the slot 4. A placement cavity 6 is opened on the lower mold 1. A lower mold 7 is placed in the placement cavity 6. A lifting component 8 and a reinforcing component 9 are respectively provided in the lower mold 7. The demolding component 5 includes an insert plate 51 fixedly connected to the bottom end of the upper mold 2. The insert plate 51 is inserted into the slot 4. A telescopic rod 52 is fixedly connected to the inner wall of the slot 4. A connecting plate 54 is fixedly connected to the telescopic end of the telescopic rod 52. A spring 53 is fixedly connected to the bottom surface of the connecting plate 54. The end of the spring 53 away from the connecting plate 54 is fixedly connected to the slot 4. A push rod 55 is fixedly connected to the top surface of the connecting plate 54. A through hole 56 is opened on the lower mold 7. The push rod 55 is inserted into the through hole 56.

[0031] In this embodiment, the upper mold 2 is first connected to the external hydraulic drive device via a pre-set rectangular connecting plate on the top of the upper mold 2 and the output end of the hydraulic drive device. Then, fixing pins are inserted in sequence and tightened with nuts to lock them in place. The lower mold 1 is then positioned securely in the required processing position by engaging the pre-set threaded hole on the worktable with positioning bolts, ensuring that the central axes of the upper mold 2 and the lower mold 1 are aligned to avoid deviations during mold closing.

[0032] At this point, the blank to be processed is placed inside the cavity of the lower mold 7, and then the external drive device is activated to drive the upper mold 2 to move vertically towards the lower mold 1. As the upper mold 2 moves downward, its bottom insert plate 51 will first align with the slot 4 on the top surface of the lower mold 1 and gradually enter the slot 4. As the upper mold 2 continues to descend, the bottom end of the insert plate 51 will gradually contact the top surface of the connecting plate 54 and apply a downward pushing force to the connecting plate 54, causing the connecting plate 54 to synchronously drive the telescopic rod 52 to retract downward along the inner wall of the slot 4. At the same time, the spring 53 at the bottom of the connecting plate 54 is compressed and undergoes elastic deformation (at this time, the spring 53 is in a compressed energy storage state). During this process, the ejector rod 55 fixed on the top surface of the connecting plate 54 will move downward synchronously with the connecting plate 54, gradually sliding downward from the through hole 56 opened on the lower mold 7, and completely disengaging from the cavity area of ​​the lower mold 7, avoiding interference of the ejector rod 55 with the extrusion molding of the workpiece.

[0033] When the upper mold 2 and lower mold 1 are fully fitted together and the preset mold closing pressure is reached, the upper mold 3 installed inside the upper mold 2 will precisely align with the lower mold 7 inside the lower mold 1's placement cavity 6, closing to form a sealed molding cavity. This extrudes the blank within the cavity into a preset shape that matches the mold cavity. Because pressure is generated during the extrusion molding process, acting on the adsorption forces between material molecules, and because some of the high-temperature molten blank, after cooling and solidification, will adhere to the inner wall of the lower mold 7 cavity, the formed workpiece tends to adhere tightly to the lower mold 7. Direct manual removal of the workpiece is difficult and prone to damage.

[0034] Therefore, after the workpiece is formed, the external drive device is controlled to drive the upper mold 2 to reset upward. During the upward movement of the upper mold 2, the downward pressure applied by the insert plate 51 to the connecting plate 54 will gradually decrease. At this time, the spring 53, which is in a compressed state, will release its elastic potential energy. With the reset action of the telescopic rod 52, the connecting plate 54 will move upward smoothly. The push rod 55 at the top of the connecting plate 54 will also move upward synchronously with the connecting plate 54. When the insert plate 51 at the bottom of the upper mold 2 is completely disengaged from the slot 4, the connecting plate 54 returns to its initial position under the action of the spring 53. At this time, the push rod 55 will be inserted into the through hole 56 of the lower mold 7 again and continue to push the formed workpiece inside the cavity of the lower mold 7 upward, thereby lifting the workpiece from the cavity of the lower mold 7. This makes it easy for the workers to quickly and without damage remove the workpiece, effectively improving processing efficiency and product qualification rate.

[0035] Example 2:

[0036] Reference Figure 3 - Figure 6 This embodiment also has the following further features: the lifting assembly 8 includes an electric push rod 81 fixedly connected to the side wall of the lower mold 1, a slide rod 82 fixedly connected to the output end of the electric push rod 81, a support 83 fixedly connected inside the lower mold 1, the slide rod 82 and the support 83 being slidably connected, and multiple toothed grooves 84 are formed on the slide rod 82.

[0037] The lower mold 1 is rotatably connected to a rotating rod 85. The two ends of the rotating rod 85 are respectively fixedly connected to a first gear 86 and a second gear 861. The first gear 86 is placed inside the lower mold 1 and rotates, while the second gear 861 is placed inside the placement cavity 6 and rotates. The first gear 86 meshes with the tooth groove 84.

[0038] A support column 87 is fixedly connected to the inner surface of the placement cavity 6. The inside of the support column 87 is hollow. A toothed rod 88 is slidably connected inside the support column 87. A torsion spring 89 is fixedly connected to the bottom end of the toothed rod 88. The torsion spring 89 is fixedly connected to the inner wall of the support column 87. The toothed rod 88 meshes with the second gear 861. A horizontal plate 810 is fixedly connected to the top end of the toothed rod 88. A mounting hole 811 is opened on the horizontal plate 810.

[0039] The reinforcing component 9 includes a toothed plate 91 fixedly connected to the slide bar 82, a support shaft 92 fixedly connected inside the lower mold 1, a third gear 93 rotatably connected to the top surface of the support shaft 92, the third gear 93 meshing with the toothed plate 91, a threaded rod 94 threadedly connected to the third gear 93, the threaded rod 94 slidably connected to the support shaft 92, the threaded rod 94 slidably connected to the lower mold 1, and a shaped block 95 fixedly connected to one end of the threaded rod 94 near the placement cavity 6.

[0040] A guide rod 96 is fixedly connected to the bottom end of the lower mold 7. The guide rod 96 is inserted into the mounting hole 811. A shaped groove 71 is opened on the lower mold 7. The shaped groove 71 is inserted into the shaped block 95.

[0041] In this embodiment, when extruding workpieces of different specifications and shapes, the lower mold 7 needs to be replaced accordingly to adapt to the molding requirements. Furthermore, the lower mold 7 is typically installed inside the placement cavity 6 of the lower mold 1, and after installation, its top surface is usually flush with or slightly lower than the top surface of the lower mold 1, remaining embedded. Therefore, during disassembly, workers need to use tools such as pry bars to pry it from the gap between the lower mold 7 and the placement cavity 6. This not only easily scratches the lower mold 7 or the inner wall of the placement cavity 6, but also makes the operation cumbersome, time-consuming, and laborious. Additionally, the embedded installation means the lower mold 7 lacks a stress point, making it extremely difficult to remove quickly.

[0042] Therefore, when replacing the lower mold 7, the electric push rod 81, which is fixedly connected to the side wall of the lower mold 1, is activated first. Its output end extends and drives the slide rod 82, which is fixedly connected to it, to move forward horizontally inside the support 83. When the slide rod 82 moves forward, the toothed plate 91 fixed on its surface will first mesh with the third gear 93 at the top of the support shaft 92. The third gear 93 rotates under the drive of the toothed plate 91. Since the third gear 93 has a threaded groove inside that matches the thread on the outer surface of the threaded rod 94, and the threaded rod 94 and the support shaft 92 are in sliding fit (the support shaft 92 plays an axial limiting role on the threaded rod 94), the threaded rod 94 cannot rotate with the third gear 93. It can only move horizontally along the axial direction of the support shaft 92 under the helical transmission of the threaded groove. As the third gear 93 rotates, the threaded rod 94 moves horizontally outward along the support shaft 92 in cooperation with the threaded groove. The irregularly shaped block 95, located near the placement cavity 6, is then gradually dislodged from the irregularly shaped groove at the bottom of the lower mold 7 under the influence of the threaded rod 94. Since the irregularly shaped block 95 and the irregularly shaped groove 71 have a convex-concave shape, they can position and laterally lock the lower mold 7 when they are engaged. Therefore, once the irregularly shaped block 95 is dislodged, the fixed state of the lower mold 7 is released.

[0043] When the irregular block 95 is completely separated from the irregular groove 71, the slide bar 82 continues to move forward. At this time, the toothed plate 91 will completely disengage from the teeth on the third gear 93, and the multiple toothed grooves 84 opened on the slide bar 82 will simultaneously mesh with the first gear 86 on the side. The first gear 86 rotates under the drive of the toothed grooves 84, and drives the rotating rod 85 fixed to it to rotate synchronously. The second gear 861 fixed to the other end of the rotating rod 85 also rotates synchronously. The second gear 861 meshes with the toothed rod 88 slidably connected to the inner wall of the support column 87, and the side wall of the support column 87 has a groove that matches the second gear 861. The teeth on the toothed rod 88 are exposed through the groove and mesh with the second gear 861. Therefore, when the second gear 861 rotates, it will drive the toothed rod 88 to slide upward along the inner wall of the support column 87 and stretch the torsion spring 89 fixedly connected to its bottom (the torsion spring 89 is in a stretched and stored state at this time, which provides elastic support for the sliding of the toothed rod 88 and also prevents the toothed rod 88 from getting stuck during the sliding process). The horizontal plate 810 fixed at the top of the rack 88 moves upward synchronously with the rack 88. After the top surface of the horizontal plate 810 contacts the bottom surface of the lower mold 7, it will drive the lower mold 7 to rise from the placement cavity 6 of the lower mold 1 until the top surface of the lower mold 7 is higher than the top surface of the lower mold 1 by a certain height (forming a height difference that is easy to grasp). At this time, the electric push rod 81 stops moving, and the operator can directly hold the edge of the lower mold 7 and smoothly remove the lower mold 7 from the horizontal plate 810. Then, the guide rod 96 at the bottom of the new lower mold 7 is aligned with the mounting hole 811 on the horizontal plate 810 and inserted. Through the insertion and cooperation of the guide rod 96 and the mounting hole 811, the new lower mold 7 is initially positioned and vertically limited to prevent displacement during the subsequent descent.

[0044] After the initial positioning is completed, the electric push rod 81 is activated, causing its output end to retract inward, which drives the slide rod 82 to move in the opposite direction along the support 83. At this time, the toothed groove 84 on the slide rod 82 will mesh with the first gear 86 again, driving the first gear 86 to rotate in the opposite direction, and synchronously driving the second gear 861 to rotate in the opposite direction through the rotating rod 85; under the reverse drive of the second gear 861, the rack 88 drives the top horizontal plate 810 and the new lower mold 7 to move downward along the inner wall of the support column 87. As the slide rod 82 continues to move in the opposite direction, the toothed groove 84 on the slide rod 82 will gradually separate from the first gear 86, the first gear 86 will stop rotating, and the rack 88 will stop sliding down under the elastic restoring force of the torsion spring 89. At the same time, the lower mold 7 will also descend to the preset installation position of the placement cavity 6.

[0045] At this time, the slide bar 82 continues to move in the opposite direction, and the toothed plate 91 on its surface will mesh with the third gear 93 again, driving the third gear 93 to rotate in the opposite direction; the third gear 93 drives the threaded rod 94 to move horizontally in the opposite direction through the helical transmission of the screw groove, thereby pushing the irregular block 95 fixed thereto to be inserted into the irregular groove 71 opened at the bottom of the new lower mold 7 again, so as to achieve precise positioning and lateral reinforcement and fixation of the lower mold 7, and complete the entire replacement process of the lower mold 7.

[0046] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A modular combination mold for easy demolding, comprising a lower mold (1) and an upper mold (2), characterized in that, The upper mold (2) has an upper mold (3) installed on its inner surface. The lower mold (1) has a slot (4) on its top surface. A demolding component (5) is installed in the slot (4). The lower mold (1) has a placement cavity (6). The placement cavity (6) has a lower mold (7). The lower mold (7) has a lifting component (8) and a reinforcing component (9) installed in it. The lifting component (8) includes an electric push rod (81) fixedly connected to the side wall of the lower mold (1). The output end of the electric push rod (81) is fixedly connected to a slide rod (82). The lower mold (1) has a support (83) fixedly connected inside it. The slide rod (82) is slidably connected to the support (83). The slide rod (82) has multiple toothed grooves (84).

2. The modular combination mold for easy demolding according to claim 1, characterized in that, The lower mold (1) is rotatably connected to a rotating rod (85). The two ends of the rotating rod (85) are respectively fixedly connected to a first gear (86) and a second gear (861). The first gear (86) is placed inside the lower mold (1) and rotates, while the second gear (861) is placed inside the placement cavity (6) and rotates. The first gear (86) meshes with the tooth groove (84).

3. A modular combination mold for easy demolding according to claim 2, characterized in that, A support column (87) is fixedly connected to the inner surface of the placement cavity (6). The inside of the support column (87) is hollow. A toothed rod (88) is slidably connected inside the support column (87). A torsion spring (89) is fixedly connected to the bottom end of the toothed rod (88). The torsion spring (89) is fixedly connected to the inner wall of the support column (87).

4. A modular combination mold for easy demolding according to claim 3, characterized in that, The rack (88) meshes with the second gear (861), and a horizontal plate (810) is fixedly connected to the top of the rack (88), and an installation hole (811) is provided on the horizontal plate (810).

5. A modular combination mold for easy demolding according to claim 1, characterized in that, The demolding assembly (5) includes an insert plate (51) fixedly connected to the bottom end of the upper mold (2). The insert plate (51) is inserted into the slot (4). A telescopic rod (52) is fixedly connected to the inner wall of the slot (4). A connecting plate (54) is fixedly connected to the telescopic end of the telescopic rod (52). A spring (53) is fixedly connected to the bottom surface of the connecting plate (54). The end of the spring (53) away from the connecting plate (54) is fixedly connected to the slot (4).

6. A modular combination mold for easy demolding according to claim 5, characterized in that, A push rod (55) is fixedly connected to the top surface of the connecting plate (54), and a through hole (56) is provided on the lower mold (7). The push rod (55) is inserted into the through hole (56).

7. A modular combination mold for easy demolding according to claim 4, characterized in that, The reinforcing component (9) includes a toothed plate (91) fixedly connected to the slide bar (82), a support shaft (92) fixedly connected inside the lower mold (1), a third gear (93) rotatably connected to the top surface of the support shaft (92), and the third gear (93) meshing with the toothed plate (91).

8. A modular combination mold for easy demolding according to claim 7, characterized in that, The third gear (93) is threaded with a threaded rod (94), which is slidably connected to the support shaft (92) and the lower mold (1). A shaped block (95) is fixedly connected to one end of the threaded rod (94) near the placement cavity (6).

9. A modular combination mold for easy demolding according to claim 8, characterized in that, The bottom end of the lower mold (7) is fixedly connected to a guide rod (96), the guide rod (96) is inserted into the mounting hole (811), and the lower mold (7) is provided with a shaped groove (71), the shaped groove (71) is inserted into the shaped block (95).

10. A modular combination mold for easy demolding according to claim 1, characterized in that, The slot (4) is U-shaped and is located inside the lower mold (1).

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