Large tree shell mold injection wax mold

Abstract

The application relates to a large tree string shell mold wax injection mold, which comprises an upper mold, a lower mold and a wax shape part, bolt holes are arranged on the upper mold and the lower mold respectively, the upper mold and the lower mold are matched to form a cavity, one side of the cavity is provided with a gate, the cavity comprises a first cavity and a second cavity, the wax shape part comprises a plug, a nut seat and a screw rod, a strip-shaped limiting block is arranged on one side of the nut seat close to the gate, protrusions are arranged above and below the first cavity, the strip-shaped limiting block is matched with the protrusions, and the bottom of the nut seat is fixed with the screw rod. The strip-shaped limiting block is matched with the protrusions, the wax shape part is fixed in the cavity, the screw rod can improve the overall strength of the shell mold after pouring, the tree string is not easy to break, meanwhile, the special-shaped boss cavity can ensure that the large tree string shell mold is provided with a supporting boss, the tree string after pouring is not placed upside down, and the actual production demand is met.

Description

Technical Field

[0001] This application relates to the field of mechanical component technology, and more specifically, to a wax injection mold for a large tree shell mold. Background Technology

[0002] A medium-temperature wax mold is a tool for producing wax molded products; it also gives medium-temperature wax products a complete structure and precise dimensions. Injection molding is a processing method used for the mass production of certain complex-shaped parts. Specifically, it involves injecting molten medium-temperature wax under high pressure into a mold cavity, where it cools and solidifies to obtain the molded product.

[0003] Large tree-shaped shell molds are used to assemble multiple wax parts, create a tree structure, and obtain the final component structure through melting and casting wax. Existing technologies lack wax injection molds for large tree-shaped shell molds. However, in actual factory production, large tree-shaped shell molds require high strength, the tree string must not easily break, and the tree string must stand upright after casting. Therefore, there is an urgent need to design a wax injection mold for large tree-shaped shell molds to meet practical production needs. Utility Model Content

[0004] In view of this, the purpose of this application is to provide a wax injection mold for a large tree string shell mold, which has a wax mold part, and its screw rod can improve the overall strength of the shell mold after casting, making the tree string less prone to breakage. At the same time, the irregular boss cavity can ensure that the large tree string shell mold has a supporting boss, so that the tree string will not fall over after casting, thus meeting the actual production needs.

[0005] The objective of this application is achieved through the following technical solution: A wax injection mold for a large tree shell mold includes an upper mold, a lower mold, and a wax pattern. The upper mold and the lower mold are respectively provided with bolt holes. The upper mold and the lower mold cooperate with each other to form a cavity. A gate is provided on one side of the cavity. The cavity includes a first cavity and a second cavity. The wax pattern includes a plug, a nut seat, a screw rod, and a strip-shaped limiting block. The nut seat is located in the first cavity. The plug is threadedly connected to the nut seat. The strip-shaped limiting block is located on the side of the nut seat near the gate. The first cavity has protrusions at the top and bottom. The strip-shaped limiting block cooperates with the protrusions. A screw rod is fixed at the bottom of the nut seat. The screw rod is located in the second cavity.

[0006] As a further improvement of this application, the strip-shaped limiting block and the nut seat are detachably installed, wherein the strip-shaped limiting block has a through hole in the center, and the through hole has the same outer circumferential diameter as the nut seat.

[0007] As a further improvement of this application, the protrusion is provided on the upper and lower sides of the first cavity, wherein the protrusion is provided with a groove, and the groove cooperates with the strip-shaped limiting block.

[0008] As a further improvement of this application, the wax injection mold also includes a positioning mechanism, which includes a positioning hole and a positioning rod. The upper mold is provided with a positioning hole, and the lower mold is provided with a positioning rod.

[0009] As a further improvement of this application, the cavity is provided with an irregularly shaped boss chamber on the side away from the gate.

[0010] As a further improvement of this application, the nut seat is provided with a threaded connection end on the side away from the gate, and the screw rod is provided with a cavity on one side, the cavity is provided with an internal thread, and the screw rod is threadedly connected to the threaded connection end.

[0011] Compared with the prior art, the present invention has the following beneficial effects: This invention utilizes a strip-shaped limiting block and a protrusion to fix the wax-shaped part inside the cavity. The screw rod can improve the overall strength of the shell mold after casting, making the tree string less prone to breakage. At the same time, the irregularly shaped protrusion cavity can ensure that the large tree string shell mold has a supporting protrusion, so that the tree string will not fall over after casting, meeting the actual production needs. The nut seat has a plug at the end, which does not affect the casting operation. After casting, the plug can be removed and the large tree string shell mold can be fixed with screws, etc., which facilitates the subsequent blowing of fireproof material. Attached Figure Description

[0012] Figure 1 A schematic diagram of the overall structure of the large tree shell mold provided for some embodiments of this application; Figure 2 A schematic diagram of the overall structure of a large tree shell mold for wax injection, provided for some embodiments of this application; Figure 3 A cross-sectional view of a large tree shell mold for wax injection, provided for some embodiments of this application; Figure 4 A schematic diagram of the specific structure of a large tree shell mold for wax injection is provided for some embodiments of this application; Figure 5 for Figure 4 Top view; Figure 6 This is a schematic diagram of the specific structure of the lower mold of a large tree shell mold for wax injection, provided for some embodiments of this application.

[0013] Icons: 1. End; 2. Support rod; 3. Support boss; 4. Upper mold; 5. Lower mold; 6. Wax mold; 7. Bolt hole; 8. Cavity; 9. Gate; 10. First cavity; 11. Second cavity; 12. Plug; 13. Nut seat; 15. Screw rod; 16. Strip-shaped limit block; 17. Protrusion; 18. Positioning rod; 19. Irregular boss cavity. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below in conjunction with specific embodiments. The same reference numerals in the accompanying drawings represent the same components. It should be noted that the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the described embodiments of this application without creative effort are within the scope of protection of this application.

[0015] Compared to the embodiments shown in the accompanying drawings, feasible embodiments within the scope of this application may have fewer components, other components not shown in the drawings, different components, differently arranged components, or components with different connections, etc. Furthermore, two or more components in the drawings may be implemented in a single component, or a single component shown in the drawings may be implemented as multiple separate components.

[0016] Figure 1 This is a schematic diagram of the specific structure of the large tree shell mold to be processed in this application, including end 1, support rod 2 and support boss 3.

[0017] See appendix Figure 2-6 This application discloses a wax injection mold for a large tree shell mold, comprising an upper mold 4, a lower mold 5, and a wax pattern 6. The upper mold 4 and lower mold 5 are respectively provided with bolt holes 7, and are detachably connected by bolts. The upper mold 4 and the lower mold 5 cooperate to form a cavity 8, in which the wax pattern 6 is placed. A gate 9 is provided on one side of the cavity 8, which cooperates with an injection device. The cavity 8 includes a first cavity 10 and a second cavity 11, where the first cavity 10 corresponds to the end 1 of the large tree shell mold, and the second cavity 11 corresponds to the support rod 2 of the large tree shell mold. The wax pattern 6 includes a plug 12, a nut seat 13, a screw rod 15, and a strip-shaped limiting block 16. The nut seat 13 is located within the first cavity 10, and the plug 12 is threadedly connected to the nut seat 13. The plug 12 is detachably removed from the first cavity 10. The nut seat 13 is removed from one side, mainly to prevent wax from filling the nut seat 13 when the injection device injects wax into the cavity 8, thus affecting the normal use of the nut seat 13. The nut seat 13 is used to fix the screw in place, which facilitates the overall operation of the large tree shell mold. The strip-shaped limiting block 16 is located on the side of the nut seat 13 near the gate 9. The first cavity 10 has protrusions 17 on the upper and lower sides. The strip-shaped limiting block 16 cooperates with the protrusions 17. Specifically, the protrusions 17 are horizontal, and the strip-shaped limiting block 16 is a cuboid structure. One side of the strip-shaped limiting block 16 cooperates with the protrusions 17. A screw rod 15 is fixed at the bottom of the nut seat 13. The screw rod 15 is located in the second cavity 11. The screw rod 15 is used to improve the overall strength of the support rod 2 after wax injection.

[0018] Specifically, the strip-shaped limiting block 16 and the nut seat 13 are detachably installed. When the wax mold 6 is placed into the lower mold 5, the strip-shaped limiting block 16 and the protrusion 17 can be manually adjusted to cooperate with each other. Then the upper mold 4 is placed above the lower mold 5. The strip-shaped limiting block 16 has a through hole in the center, and the diameter of the through hole is the same as the outer circumference diameter of the nut seat 13.

[0019] Specifically, the protrusion 17 is provided on the upper and lower sides of the first cavity 10, and the protrusion 17 is provided with a groove. The groove cooperates with the strip-shaped limiting block 16, making the cooperation between the strip-shaped limiting block 16 and the protrusion 17 more secure and the cooperation between the two more convenient.

[0020] The wax injection mold also includes a positioning mechanism, which includes a positioning hole and a positioning rod 18. The upper mold 4 is provided with a positioning hole, and the lower mold 5 is provided with a positioning rod 18. The positioning mechanism facilitates the closing of the upper mold 4 and the lower mold 5.

[0021] Among them, the cavity 8 is provided with a special-shaped boss chamber 19 on the side away from the gate 9, and the special-shaped boss chamber 19 is used to process the support boss 3 of the large tree shell mold for production.

[0022] Specifically, the nut seat 13 has a threaded connection end on the side away from the gate 9, and the screw rod 15 has a cavity on the side with an internal thread, and the screw rod 15 is threadedly connected to the threaded connection end.

[0023] In use, the following steps are taken: First, place the wax model 6 into the lower mold 5, add a strip-shaped limiting block 16 to one side of the nut seat 13, and mate the strip-shaped limiting block 16 with the protrusion 17. Then, use the positioning mechanism between the upper mold 4 and the lower mold 5 to close the mold. After closing the mold, use bolts to seal the two. Then, use a wax injection device to inject wax into the gate 9. After wax injection, open the mold, remove the plug 12 in front of the nut seat 13, tighten the nut seat 13 with screw fasteners, and then remove the large tree shell mold for subsequent operations.

[0024] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art, all of which fall within the protection scope of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A wax injection mold for a large tree shell mold, comprising an upper mold (4), a lower mold (5), and a wax model (6), characterized in that, Bolt holes (7) are provided on the upper mold (4) and the lower mold (5) respectively. The upper mold (4) and the lower mold (5) cooperate with each other to form a cavity (8). A gate (9) is provided on one side of the cavity (8). The cavity (8) includes a first cavity (10) and a second cavity (11). The wax mold (6) includes a plug (12), a nut seat (13), a screw rod (15), and a strip-shaped limiting block (16). The nut seat (13) is located in the first cavity (10). The plug (12) is threadedly connected to the nut seat (13). The strip-shaped limiting block (16) is located on the side of the nut seat (13) near the gate (9). A protrusion (17) is provided above and below the first cavity (10). The strip-shaped limiting block (16) cooperates with the protrusion (17). A screw rod (15) is fixed at the bottom of the nut seat (13). The screw rod (15) is located in the second cavity (11).

2. The wax injection mold for a large tree shell mold according to claim 1, characterized in that, The strip-shaped limiting block (16) and the nut seat (13) are detachably installed, wherein the strip-shaped limiting block (16) has a through hole in the center, wherein the through hole has the same outer circumferential diameter as the nut seat (13).

3. The wax injection mold for a large tree shell mold according to claim 1, characterized in that, The protrusion (17) is provided on the upper and lower sides of the first cavity (10), wherein the protrusion (17) is provided with a groove, and the groove cooperates with the strip-shaped limiting block (16).

4. The wax injection mold for a large tree shell mold according to claim 1, characterized in that, The wax injection mold also includes a positioning mechanism, which includes a positioning hole and a positioning rod (18). The upper mold (4) is provided with a positioning hole, and the lower mold (5) is provided with a positioning rod (18).

5. The wax injection mold for a large tree shell mold according to claim 1, characterized in that, The cavity (8) has a shaped boss chamber (19) on the side away from the gate (9).

6. The wax injection mold for a large tree shell mold according to claim 1, characterized in that, The nut seat (13) has a threaded connection end on the side away from the gate (9), and the screw rod (15) has a cavity on the side with an internal thread. The screw rod (15) is threadedly connected to the threaded connection end.

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