Detachable mold assembly for rapid prototyping

Abstract

The utility model relates to a detachable mold assembly for rapid prototyping, which belongs to the field of molds and comprises a mold base, a dismounting mechanism for dismounting a mold is arranged on the upper surface of the mold base, and a separating mechanism for conveniently dismounting the mold is arranged on the lower surface of the mold base. According to the detachable mold assembly for rapid prototyping manufacturing, through the arrangement of the dismounting mechanism and the design of the adjusting screw rods and the clamping blocks, the mold cores can be rapidly adjusted and fixed, rapid replacement of the different mold cores is achieved, accurate alignment of the mold cores with the upper mold base and the mold base is ensured through the use of the center positioning block, the positioning accuracy of the mold is improved, and the production efficiency is improved. The supporting spring and the clamping block are used in cooperation, so that the stability of the mold core in the mold is enhanced, errors in the production process are reduced, the mold assembly is easy to adjust and maintain, the service life of the mold is prolonged, the mold assembly can adapt to mold cores of different sizes, and the universality and flexibility of the mold are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a detachable mold assembly for rapid prototyping manufacturing. Background Technique

[0002] Rapid prototyping manufacturing is a technology for creating physical parts or components by using CAD computer-aided design data and additive manufacturing technology. This method can significantly reduce the time and cost required for manufacturing molds and components, and is usually used to make different mold cores. Production and processing can be carried out by connecting the mold cores with the mold assembly.

[0003] For example, a precision mold assembly disclosed in Chinese Patent Publication No. (CN212171019U) includes a first mold base and a second mold base. The first mold base is arranged on the top of the second mold base. A plate groove is arranged at the center position of the top end of the first mold base. A detachable groove plate is arranged inside the plate groove. Four card slots are symmetrically arranged on both sides of the detachable groove plate. Four card strip grooves are symmetrically arranged on both sides inside the plate groove. The positions of the four card strip grooves correspond to the positions of the four card slots respectively. By providing the detachable groove plate, compared with the traditional fixed mold, the detachable groove plate can be disassembled and replaced, so that detachable groove plates of different shapes can be used, reducing the process of replacing and using different molds, with higher efficiency. At the same time, by providing a limiting component, etc., with a simple mechanical structure, it is very convenient to control the pop-up and retraction of the limiting component, so as to conveniently limit the position of the detachable groove plate, that is, it is more convenient to disassemble and assemble the detachable groove plate, and the applicability is stronger.

[0004] However, in the prior art exemplified by the above-mentioned disclosed patent, there is still a problem of poor disassembly and assembly stability of the mold assembly. For example, in the prior art, through the provided detachable groove plate, compared with the traditional fixed mold, the detachable groove plate can be disassembled and replaced, so that detachable groove plates of different shapes can be used. This method realizes disassembly and assembly by connecting the detachable groove plate with the mold core and the mold assembly. However, for mold cores of different sizes, detachable groove plates of different shapes need to be correspondingly manufactured for matching installation, resulting in the inability to quickly disassemble and assemble between the mold core and the mold assembly, affecting the use efficiency. Content of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the utility model provides a detachable mold assembly for rapid prototyping manufacturing, which has the advantages of convenient disassembly and the like, and solves the problem of poor disassembly and assembly stability of the mold assembly in the prior art.

[0006] To achieve the above object, the present utility model provides the following technical solutions: a detachable mold assembly for rapid prototyping manufacturing, including a mold base, wherein a disassembly and assembly mechanism for the detachable mold is provided on the upper surface of the mold base, and a detachment mechanism for facilitating the disassembly of the mold is provided on the lower surface of the mold base;

[0007] The disassembly and assembly mechanism includes four guide posts fixed on the upper surface of the mold base. Sliding sleeves are slidably arranged on the outer sides of the four guide posts. An upper mold base is fixed on the outer sides of the four sliding sleeves. Central positioning blocks are fixed in the middle of the inner walls on the opposite sides of the upper mold base and the mold base. Mold cores are placed on the inner walls of the upper mold base and the mold base. Adjustment holes are opened on the inner walls of the left and right sides of the upper mold base and the mold base, and adjustment screws are slidably connected to the inner walls of the four adjustment holes. Clamping blocks are fixed to the opposite ends of the adjustment screws on the left and right sides. Support springs are respectively movably sleeved on the outer sides of the four adjustment screws and are located inside the upper mold base and the mold base, and one end of the support spring is fixed to the side of the clamping block facing away from the mold core.

[0008] Further, locking nuts are threadedly connected to the outer sides of the four adjustment screws, and positioning grooves corresponding to the positions of the central positioning blocks are opened on the opposite sides of the two mold cores.

[0009] Further, clamping grooves are opened on the left and right sides of the two mold cores, and the distance between the inner walls on the upper and lower sides of the clamping groove is equal to the height of the clamping block.

[0010] Further, the length of the clamping block is equal to the distance between the inner walls on the front and rear sides of the mold base, and the length and width of the upper mold base are respectively equal to the length and width of the mold base.

[0011] Further, the detachment mechanism includes two telescopic rods placed below the mold base. The bottoms of the two telescopic rods are fixed with a support plate. Return springs are respectively movably sleeved on the outer sides of the two telescopic rods, and the bottom ends of the two return springs are fixed to the upper surface of the support plate. Two ejector posts are fixed to the upper surface of the support plate. Two sockets are fixed to the upper surface of the support plate, and limit frames are inserted into the inner walls of the two sockets.

[0012] Further, each of the two telescopic rods includes a fixed outer tube and a sliding inner rod slidably arranged inside the fixed outer tube.

[0013] Further, ejection holes corresponding to the positions of the two ejector posts are opened on the opposite sides of the upper mold base and the mold base, and the height of the limit frame is equal to the height of the telescopic rod.

[0014] Compared with the prior art, the technical solutions of the present application have the following beneficial effects:

[0015] 1. The detachable mold assembly for rapid prototyping manufacturing is provided with a disassembly and assembly mechanism. Through the design of the adjusting screw and the clamping block, the mold core can be quickly adjusted and fixed, enabling the rapid replacement of different mold cores. The use of the center positioning block ensures the precise alignment of the mold core with the upper mold base and the mold base, improving the positioning accuracy of the mold. The combined use of the support spring and the clamping block enhances the stability of the mold core in the mold, reduces errors during the production process, makes the mold assembly easy to adjust and maintain, extends the service life of the mold, and the mold assembly can adapt to mold cores of different sizes, increasing the versatility and flexibility of the mold.

[0016] 2. The detachable mold assembly for rapid prototyping manufacturing is provided with a detachment mechanism. When it is difficult to remove the mold core from the mold base or the upper mold base, the detachment mechanism can simplify the detachment process of the mold core through the ejection action of the ejection post. Through the ejection action of the detachment mechanism, the use of brute force or inappropriate tools to pry the mold core directly from the mold can be avoided, reducing potential damage to the mold core. The design of the detachment mechanism makes the detachment process of the mold core faster and more controllable, thereby improving the overall production efficiency. During normal use, the support of the limit frame ensures the stability of the mold base during use, preventing the mold from shifting or deforming. The smooth detachment of the mold core makes the maintenance and cleaning of the mold easier, helping to maintain the good condition of the mold and extend the service life of the mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural view of the present utility model;

[0018] Figure 2 is a schematic view of the disassembly and assembly mechanism of the present utility model;

[0019] Figure 3 is a schematic view of the detachment mechanism of the present utility model;

[0020] Figure 4 is a partial schematic view of the detachment mechanism of the present utility model.

[0021] In the figure: 1 mold base, 2 disassembly and assembly mechanism, 21 guide post, 22 sliding sleeve, 23 upper mold base, 24 center positioning block, 25 mold core, 26 adjusting screw, 27 clamping block, 28 support spring, 29 locking nut, 210 card slot, 3 detachment mechanism, 31 expansion rod, 32 support plate, 33 return spring, 34 ejection post, 35 socket, 36 limit frame, 37 ejection hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0023] Please refer to Figure 1 , the detachable mold assembly for rapid prototyping manufacturing in this embodiment includes a mold base 1. A disassembly and assembly mechanism 2 for the detachable mold is provided on the upper surface of the mold base 1, and a detachment mechanism 3 for facilitating mold disassembly is provided on the lower surface of the mold base 1.

[0024] Please refer to Figure 2 , in order to detach the mold, the disassembly and assembly mechanism 2 in this embodiment includes four guide posts 21 fixed on the upper surface of the mold base 1. Sliding sleeves 22 are slidably arranged on the outer sides of the four guide posts 21. An upper mold base 23 is fixed on the outer sides of the four sliding sleeves 22. The upper mold base 23 is placed on the mold base 1, and the upper mold base 23 slides along the guide posts 21 through the sliding sleeves 22 to ensure that the upper mold base 23 is correctly aligned with the mold base 1. Central positioning blocks 24 are fixed in the middle of the inner walls on the opposite sides of the upper mold base 23 and the mold base 1. Mold cores 25 are placed on the inner walls of the upper mold base 23 and the mold base 1. The mold cores 25 are placed between the inner walls of the mold base 1 and the upper mold base 23 to ensure that the mold cores 25 are aligned with the central positioning blocks 24. By moving the adjusting screws 26, the positions of the mold cores 25 on the inner walls of the mold base 1 and the upper mold base 23 are adjusted to ensure the correct positioning of the mold cores 25. Adjusting holes are opened on the inner walls of the left and right sides of the upper mold base 23 and the mold base 1, and the inner walls of the four adjusting holes are slidably connected with adjusting screws 26. Blocks 27 are fixed at the opposite ends of the adjusting screws 26 on the left and right sides. Support springs 28 located inside the upper mold base 23 and the mold base 1 are movably sleeved on the outer sides of the four adjusting screws 26, and one end of each support spring 28 is fixed to the side of the block 27 facing away from the mold core 25. The support springs 28 provide the necessary elastic force to ensure the stability of the mold cores 25.

[0025] In this embodiment, locking nuts 29 are threadedly connected to the outer sides of the four adjusting screws 26. Positioning grooves corresponding to the positions of the central positioning blocks 24 are formed on the opposite sides of the two die cores 25. Clamping grooves 210 are formed on the left and right sides of the two die cores 25, and the distance between the inner walls on the upper and lower sides of the clamping groove 210 is equal to the height of the clamping block 27. The movement of the adjusting screw 26 drives the clamping block 27. When adjusted to the appropriate position, the clamping block 27 fixes the die core 25. The length of the clamping block 27 is equal to the distance between the inner walls on the front and rear sides of the mold base 1. The length and width of the upper mold base 23 are respectively equal to the length and width of the mold base 1. The locking nut 29 is threadedly connected to the outer side of the adjusting screw 26 to ensure that the adjusting screw 26 does not loosen during the use of the mold, thereby ensuring the stability of the die core 25.

[0026] Please refer to Figures 3 to 4 , for the convenience of mold disassembly, the detachment mechanism 3 in this embodiment includes two telescopic rods 31 placed under the mold base 1. When there is a problem with replacing the die core 25, the detachment mechanism 3 is placed under the mold base 1 to ensure that the telescopic rods 31 and the support plate 32 are correctly aligned. The bottoms of the two telescopic rods 31 are fixed with a support plate 32. Return springs 33 are movably sleeved on the outer sides of the two telescopic rods 31. The bottom ends of the two return springs 33 are fixed to the upper surface of the support plate 32. Two ejector posts 34 are fixed to the upper surface of the support plate 32. Two sockets 35 are fixed to the upper surface of the support plate 32. Limit frames 36 are inserted into the inner walls of the two sockets 35. Before starting the detachment operation, it is necessary to move the clamping block 27 out of the clamping grooves 210 on both sides of the die core 25, which is achieved by adjusting the adjusting screw 26, so that the clamping block 27 exits from the clamping groove 210, and the limit frame 36 is taken out from the socket 35 of the support plate 32 for the next step of operation.

[0027] In this embodiment, both telescopic rods 31 include a fixed outer tube and a sliding inner rod slidably disposed inside the fixed outer tube. By applying an external force to press down the mold base 1, the telescopic rods 31 are compressed, and at the same time, the return spring 33 is also compressed. When the mold base 1 is pressed down, the ejector pins 34 on the bottom support plate 32 of the telescopic rod 31 will move upward along the ejection holes 37, thereby ejecting the mold core 25 to disengage it from the mold base 1. After confirming that the mold core 25 has successfully disengaged from the mold base 1, ejection holes 37 corresponding to the positions of the two ejector pins 34 are provided on the sides of the upper mold base 23 and the mold base 1 facing away from each other. The height of the limit frame 36 is equal to the height of the telescopic rod 31. If it is necessary to disengage the mold core 25 from the upper mold base 23, the upper mold base 23 is flipped and placed on the disengagement mechanism 3, and the above-mentioned pressing and ejection operations are repeated. After the mold core 25 is disengaged, the external force is released to allow the telescopic rod 31 and the return spring 33 to reset, preparing for the next use. During normal use of the mold, the limit frame 36 is reinserted into the socket 35 of the support plate 32, and the top of the limit frame 36 supports the mold base 1 to maintain the stability of the mold during use.

[0028] The working principle of the above embodiment is as follows:

[0029] (1) Place the mold core 25 between the inner walls of the mold base 1 and the upper mold base 23, ensure that the mold core 25 is aligned with the center positioning block 24, and adjust the position of the mold core 25 on the inner walls of the mold base 1 and the upper mold base 23 by moving the adjusting screw 26 to ensure the correct positioning of the mold core 25. The movement of the adjusting screw 26 will drive the clamping block 27. When adjusted to the appropriate position, the clamping block 27 will fix the mold core 25, and the support spring 28 provides the necessary elastic force to ensure the stability of the mold core 25. Place the upper mold base 23 on the mold base 1 and slide it along the guide post 21 through the sliding sleeve 22 to ensure the correct alignment of the upper mold base 23 and the mold base 1. Thread the locking nut 29 on the outside of the adjusting screw 26 to ensure that the adjusting screw 26 will not loosen during the use of the mold, thereby ensuring the stability of the mold core 25.

[0030] (2) When there is a problem with the replacement die core 25, place the detachment mechanism 3 under the mold base 1 to ensure that the telescopic rod 31 and the support plate 32 are correctly aligned. Before starting the detachment operation, the clamping blocks 27 need to be removed from the clamping slots 210 on both sides of the die core 25, which is achieved by adjusting the adjusting screw 26, so that the clamping blocks 27 are withdrawn from the clamping slots 210. Take out the limit frame 36 from the socket 35 of the support plate 32 for the next operation. By applying an external force to press down the mold base 1, the telescopic rod 31 will be compressed, and at the same time, the return spring 33 will also be compressed. When the mold base 1 is pressed down, the ejector post 34 on the bottom support plate 32 of the telescopic rod 31 will move upward along the ejector hole 37, thereby ejecting the die core 25 to detach it from the mold base 1. Confirm that the die core 25 has been successfully detached from the mold base 1. If it is necessary to detach the die core 25 from the upper mold base 23, then turn the upper mold base 23 over and place it on the detachment mechanism 3, repeat the above pressing and ejecting operations. After the die core 25 is detached, release the external force to let the telescopic rod 31 and the return spring 33 reset and prepare for the next use. When the mold is in normal use, reinsert the limit frame 36 into the socket 35 of the support plate 32, and the top of the limit frame 36 supports the mold base 1 to maintain the stability of the mold during use.

[0031] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0032] The standard parts used in this application document can all be purchased from the market, and can also be customized according to the description of the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, welding, etc. that are mature in the prior art. The machines, parts and equipment all adopt conventional models in the prior art. The control method is automatically controlled by a controller, and the control circuit of the controller can be realized by simple programming by those skilled in the art, which belongs to the common general knowledge in this field. Therefore, the control method and the circuit connection are not explained in detail in this application document.

[0033] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model.

Claims

1. A detachable mold assembly for rapid prototyping, comprising a mold base (1), characterized in that: The upper surface of the mold base (1) is provided with a disassembly and assembly mechanism (2) for the detachable mold, and the lower surface of the mold base (1) is provided with a separation mechanism (3) for facilitating the disassembly of the mold; The disassembly and assembly mechanism (2) includes four guide posts (21) fixed on the upper surface of the mold base (1). A sliding sleeve (22) is slidably arranged on the outer side of each of the four guide posts (21). An upper mold base (23) is fixed on the outer side of the four sliding sleeves (22). Central positioning blocks (24) are fixed in the middle of the inner walls on the opposite sides of the upper mold base (23) and the mold base (1). Mold cores (25) are placed on the inner walls of the upper mold base (23) and the mold base (1). Adjustment holes are formed in the left and right inner walls of the upper mold base (23) and the mold base (1), and adjustment screws (26) are slidably connected to the inner walls of the four adjustment holes. Clamping blocks (27) are fixed at the opposite ends of the adjustment screws (26) on the left and right sides. Support springs (28) located inside the upper mold base (23) and the mold base (1) are movably sleeved on the outer sides of the four adjustment screws (26), and one end of each support spring (28) is fixed to the side of the clamping block (27) facing away from the mold core (25).

2. The detachable mold assembly for rapid prototyping according to claim 1, wherein: Locking nuts (29) are threadedly connected to the outer sides of the four adjustment screws (26). Positioning grooves corresponding to the positions of the central positioning blocks (24) are formed on the opposite sides of the two mold cores (25).

3. The detachable mold assembly for rapid prototyping according to claim 1, wherein: Slots (210) are formed on the left and right sides of the two mold cores (25), and the distance between the upper and lower inner walls of each slot (210) is equal to the height of the clamping block (27).

4. The detachable mold assembly for rapid prototyping according to claim 1, wherein: The length of the clamping block (27) is equal to the distance between the front and rear inner walls of the mold base (1), and the length and width of the upper mold base (23) are respectively equal to the length and width of the mold base (1).

5. The detachable mold assembly for rapid prototyping according to claim 1, characterized in that: The separation mechanism (3) includes two telescopic rods (31) placed below the mold base (1). A support plate (32) is fixed to the bottom of the two telescopic rods (31). Return springs (33) are movably sleeved on the outer sides of the two telescopic rods (31). The bottom ends of the two return springs (33) are fixed to the upper surface of the support plate (32). Two ejector posts (34) are fixed to the upper surface of the support plate (32). Two sockets (35) are fixed to the upper surface of the support plate (32). Limit frames (36) are inserted into the inner walls of the two sockets (35).

6. The detachable mold assembly for rapid prototyping according to claim 5, characterized in that: Each of the two telescopic rods (31) includes a fixed outer tube and a sliding inner rod slidably arranged inside the fixed outer tube.

7. The detachable mold assembly for rapid prototyping according to claim 5, characterized in that: Ejection holes (37) corresponding to the positions of the two ejector posts (34) are formed on the opposite sides of the upper mold base (23) and the mold base (1). The height of the limit frame (36) is equal to the height of the telescopic rod (31).

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