Elbow with auxiliary plate, elbow wax mold and wax mold forming mold with auxiliary plate

Abstract

The utility model relates to wax mould mould technical field especially, relates to a kind of elbow with auxiliary plate elbow, elbow wax mould and wax mould forming mould of elbow with auxiliary plate;Wherein, elbow with auxiliary plate, including the elbow pipe of identical pipe diameter and corresponding central angle less than 90 °, the two ends of the elbow pipe are provided with the rhombic mounting plate perpendicular to elbow pipe axis, the middle part of the elbow pipe is provided with the L-shaped auxiliary plate perpendicular to the symmetry plane of elbow pipe;Wax mould forming mould includes the left mould and right mould of forming the external structure of auxiliary plate elbow, and the die core of forming elbow inner tube;The die core is made of five core pieces, when the mould is closed, the die core is inserted from the two ends of the left mould and the right mould, and is positioned and fixed at tail end. This mould is simple to operate, can integrally and quickly form complex elbow structure, improve its wax mould forming quality and efficiency, and subsequent demoulding is convenient.

Description

Technical Field

[0001] This utility model relates to the field of wax mold technology, and in particular to a wax mold forming mold with an auxiliary plate bend, a bend wax mold, and a wax mold forming mold with an auxiliary plate bend. Background Technology

[0002] Although wax casting involves numerous steps, it allows for the one-piece molding of complex workpieces with high quality and precision. Therefore, wax casting is commonly used for elbows with complex structures and high surface finish requirements. The core of wax casting is the preparation of a wax model that perfectly matches the shape and structure of the finished product. For complex elbows, in addition to considering the external structure, the forming of the internal bend must also be taken into account. Therefore, designing the mold for the external structure and the core mold for the internal bend is crucial for the one-piece molding of elbows using wax casting. Utility Model Content

[0003] The purpose of this utility model is to address the shortcomings of the existing technology by providing a wax mold forming mold for an elbow with an auxiliary plate. It uses a mold cavity with an insert to form an elbow with an auxiliary plate, and uses a multi-core block combination to form the inner tube of the elbow, thereby achieving integrated wax mold forming of the elbow.

[0004] The technical solution adopted by this utility model to solve its technical problem is: an elbow with an auxiliary plate, including a bend with the same pipe diameter and a corresponding central angle of less than 90°. The two ends of the bend are provided with rhomboid mounting plates perpendicular to the axis of the elbow. The middle part of the bend is provided with an L-shaped auxiliary plate perpendicular to the symmetry plane of the bend. The L-shaped auxiliary plate is symmetrical about the symmetry plane of the bend. The L-shaped auxiliary plate does not extend into the inner pipe of the bend. The longer side plate of the L-shaped auxiliary plate is attached to the inner side of one of the rhomboid mounting plates, and the top of the side plate intersects with the inner side of the other rhomboid mounting plate.

[0005] A wax mold for an elbow includes an elbow and a herringbone sprue. The herringbone sprue is located on the inner curved side of the elbow. The lower ends of the two branches of the herringbone sprue are semi-circular ring plates that fit into the pipe openings at both ends of the elbow. A connecting plate is provided between the upper end of the herringbone sprue and the elbow.

[0006] A wax mold forming die with an auxiliary plate elbow includes a left mold, a right mold, and a mold core. Both the left and right molds have cavities with conformal elbow external structures, and a wax injection channel connecting the mold cavities to the outside is provided at the interface between the left and right molds. The mold core is composed of multiple core components arranged along the interface between the left and right molds, and is symmetrical about the interface. The left and right molds have fixing points at the interface. The lower core hole at the bottom of the mold core and the upper core hole for fixing the upper end of the mold core are both composed of two semi-circular holes provided in the left mold and the right mold. The left mold, the right mold and the mold core are provided with a lower pin hole that penetrates the three of them laterally at the lower core hole. The left mold, the right mold and the mold core are provided with an upper pin hole that penetrates the three of them laterally at the upper core hole. The lower pin hole and the upper pin hole are into which a positioning pin penetrates the left mold, the right mold and the mold core.

[0007] Preferably, the mold core includes a cylindrical core component one that can be fixed to the lower core hole and core components two, three, and four that can be fixed to the upper core hole. Core components two, three, and four are formed by longitudinally cutting the upper end of the mold core. Core components three and four are assembled on both sides of core component two. The outer end of core component four is provided with a positioning protrusion that fits into the right mold. The front end of core components two, three, and four is bent inward and provided with a clearance notch. Core component five is provided in the clearance notch. Core component five is fitted between the four core components. The interface between core component five and core component two is provided with a core wire hole that passes through both along the center line. The core wire hole is inlaid with a core wire to prevent the core component five from moving laterally.

[0008] Preferably, the upper pin hole extends laterally through the second core component, the third core component, and the fourth core component.

[0009] Preferably, the left mold and the right mold are provided with guide holes and guide posts to facilitate mold closing.

[0010] Preferably, both the left mold and the right mold are inlaid with character molds.

[0011] The beneficial effects of this utility model are as follows: A wax mold forming mold for an elbow with an auxiliary plate includes a left mold and a right mold for forming the external structure of the elbow with the auxiliary plate, and a mold core for forming the inner tube of the elbow. The mold core is composed of five core components. When the mold is closed, the mold core is inserted from both ends of the left and right molds and positioned and fixed at the tail end. This mold is simple to operate, can quickly and integrally form elbows with complex structures, improves the quality and efficiency of wax mold forming, and facilitates subsequent demolding. Attached Figure Description

[0012] Figure 1It is a three-dimensional view of a wax model with an auxiliary plate and an elbow, featuring a herringbone-shaped sprue.

[0013] Figure 2 This is a three-dimensional view of a wax mold forming die with an auxiliary plate bend;

[0014] Figure 3 This is a three-dimensional view of the left mold;

[0015] Figure 4 This is a perspective view of the right mold;

[0016] Figure 5 This is a three-dimensional view of the mold core;

[0017] Figure 6 This is the main sectional view of the mold core.

[0018] Explanation of reference numerals in the attached figures:

[0019] 1 – Elbow, 2 – Herringbone sprue, 21 – Connecting plate, 3 – Left mold, 31 – Mold cavity, 32 – Wax injection channel, 33 – Lower core hole, 34 – Upper core hole, 35 – Lower pin hole, 36 – Upper pin hole, 4 – Right mold, 5 – Mold core, 51 – Core component one, 52 – Core component two, 53 – Core component three, 54 – Core component four, 55 – Core component five, 56 – Core wire hole. Detailed Implementation

[0020] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the scope of the present invention.

[0021] like Figure 1 The diagram shows an elbow 1 with an auxiliary plate. The elbow 1 has a central angle between 60° and 70°. The two ends of the elbow 1 are provided with prismatic mounting plates. In order to achieve mass casting of the elbow 1, in this embodiment, a herringbone-shaped sprue 2 is prepared on the elbow 1 at the same time as the wax model of the elbow 1 is made.

[0022] The herringbone-shaped gating channel 2 is located on the inner curved side of the elbow 1. The lower ends of the two branches of the herringbone-shaped gating channel 2 are semi-circular ring plates that fit into the pipe openings at both ends of the elbow 1. A connecting plate 21 is provided between the upper end of the herringbone-shaped gating channel 2 and the elbow 1. This connecting plate 21 connects the middle top of the elbow 1 and the top of the herringbone-shaped gating channel 2, which can form an air passage during casting, allowing the gas in the middle to escape when the elbow 1 is cast from both ends.

[0023] like Figure 2-6As shown, this embodiment of a wax mold forming mold with an auxiliary plate bend includes a left mold 3, a right mold 4, and a mold core 5. Both the left mold 3 and the right mold 4 are provided with a mold cavity 31 for the external structure of the conformal bend 1, and a wax injection channel 32 connecting the mold cavity 31 and the outside is provided at the interface between the left mold 3 and the right mold 4. The mold core 5 is composed of multiple core components, arranged along the interface between the left mold 3 and the right mold 4, and symmetrical about the interface between the left mold 3 and the right mold 4. The left mold 3 and the right mold 4 are provided with fixing points at the interface to fix the mold core. The lower core hole 33 at the lower end of the core 5 and the upper core hole 34 that fixes the upper end of the mold core 5 are both composed of two semi-circular holes provided in the left mold 3 and the right mold 4. The left mold 3, the right mold 4 and the mold core 5 are provided with a lower pin hole 35 that penetrates the three of them horizontally at the lower core hole 33. The left mold 3, the right mold 4 and the mold core 5 are provided with an upper pin hole 36 that penetrates the three of them horizontally at the upper core hole 34. A positioning pin that penetrates the left mold 3, the right mold 4 and the mold core 5 is inserted into the lower pin hole 35 and the upper pin hole 36.

[0024] The mold core 5 includes a cylindrical core component 51 that can be fixed to the lower core hole 33, and core components 52, 53, and 54 that can be fixed to the upper core hole 34. Core components 52, 53, and 54 are formed by longitudinally cutting the upper end of the mold core 5. Core components 53 and 54 are assembled on both sides of core component 52, and the outer circumferential surface of the end of core component 54 is... The right mold 4 is provided with a positioning protrusion that fits into it. The front end of the second core 52, the third core 53, and the fourth core 54 is provided with a clearance notch. The clearance notch is provided with a fifth core 55. The fifth core 55 is fitted between the four cores. The interface between the fifth core 55 and the second core 52 is provided with a core wire hole 56 that passes through both of them along the center line. The core wire hole 56 is inlaid with a core wire to prevent the fifth core 55 from moving laterally.

[0025] During operation, the mold core 5 is first fitted and positioned with the left mold 3. Specifically, core component 1 51 is placed into the lower core hole 33 and positioned using a locating pin; core components 2 52, 3 53, 4 54, and 55 are assembled and embedded into the upper core hole 34, and positioned using a locating pin. To prevent the front end of core component 4 54 from sagging, it can be omitted from this assembly and instead embedded into the right mold 4, where it is assembled into the mold core 5 when the right mold 4 is closed. During demolding, the right mold 4 is moved to open the mold, then the two locating pins are removed, followed by core components 1 51 and 2 52, then core components 3 53 and 4 54, and finally core component 55 and the core wire. The core wire can also be fixed to core component 2 52 and removed together with it.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model, and for the convenience of describing the technical solution, the front, back, left, right, top, middle, and bottom orientations are based on the accompanying drawings and are not a limitation on the protection scope of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the essence and scope of the technical solution of this utility model.

Claims

1. A bend with auxiliary plate, characterized by: The application relates to a bend pipe, which comprises pipes with the same diameter and a corresponding central angle less than 90 degrees, pipe orifices at two ends of the bend pipe are provided with rhombic mounting plates perpendicular to the axial line of the bend pipe, the middle part of the bend pipe is provided with L-shaped auxiliary plates perpendicular to the symmetry plane of the bend pipe, the L-shaped auxiliary plates are symmetrical about the symmetry plane of the bend pipe, the L-shaped auxiliary plates do not extend to the inner pipe of the bend pipe, the longer side plate of the L-shaped auxiliary plate is attached to the inner side of one of the rhombic mounting plates, and the top of the side plate intersects with the inner side of the other rhombic mounting plate.

2. A bend wax pattern, characterized by: The application relates to a bend pipe and a herringbone runner, the herringbone runner is arranged on the inner bending side of the bend pipe, the lower ends of two branches of the herringbone runner are half-circle ring plates attached to the pipe orifices at two ends of the bend pipe, and a connecting plate is arranged between the upper end of the herringbone runner and the bend pipe.

3. A wax pattern forming mold for a bend with a backing plate, characterized by: The application relates to a left mold, a right mold and a mold core, the left mold and the right mold are provided with mold cavities with the external structure of a conformal bend pipe, and a wax injection channel is arranged on the interface of the left mold and the right mold and communicates with the mold cavities and the outside; the mold core is composed of a plurality of core pieces, the mold core is arranged along the interface of the left mold and the right mold, the mold core is symmetrical about the interface of the left mold and the right mold, the left mold and the right mold are provided with a lower core hole for fixing the lower end of the mold core and an upper core hole for fixing the upper end of the mold core at the interface, the lower core hole and the upper core hole are composed of two semicircular holes arranged on the left mold and the right mold, the left mold, the right mold and the mold core are provided with a lower pin hole transversely penetrating the three at the lower core hole, the left mold, the right mold and the mold core are provided with an upper pin hole transversely penetrating the three at the upper core hole, and a positioning pin penetrating the left mold, the right mold and the mold core is inserted into the lower pin hole and the upper pin hole.

4. A wax pattern forming mold with auxiliary plate elbow according to claim 3, characterized in that: The mold core (5) comprises a core piece one (51) which can be fixed to the lower core hole (33) and core pieces two (52), three (53) and four (54) which can be fixed to the upper core hole (34), the core piece two (52), the core piece three (53) and the core piece four (54) are longitudinally cut at the upper end of the mold core, the core piece three (53) and the core piece four (54) are spliced on both sides of the core piece two (52), and the outer side of the end of the core piece four (54) is provided with a positioning protrusion which is embedded with the right mold (4), the front end of the core piece two (52), the core piece three (53) and the core piece four (54) is inwardly bent and provided with a position-avoiding gap, the position-avoiding gap is provided with a core piece five (55), the core piece five (55) is embedded between the four core pieces, and the interface between the core piece five (55) and the core piece two (52) is provided with a core wire hole (56) which penetrates through both along the center line, and the core wire hole (56) is inlaid with a core wire which prevents the core piece five (55) from moving transversely.

5. A wax pattern forming mold with auxiliary plate elbow according to claim 4, characterized in that: The upper pin hole (36) transversely penetrates through the core piece two (52), the core piece three (53) and the core piece four (54).

6. A wax pattern forming mold with auxiliary plate elbow according to claim 3, characterized in that: The left mold (3) and the right mold (4) are provided with a guide hole and a guide column which facilitate mold closing.

7. A wax pattern forming mold with auxiliary plate elbow according to claim 3, characterized in that: The left mold (3) and the right mold (4) are inlaid with character molds.

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