A casting mold for a T-shaped bed roller

Abstract

The utility model relates to the technical field of plastic and rubber product forming, and specifically discloses a T-shaped rolling bed wheel pouring mold, which comprises a pouring cavity, a cover and a pouring hub one, the pouring cavity is provided with a hollow cylindrical shell structure, and the surface of the pouring cavity is symmetrically provided with protrusions; a limiting groove is symmetrically embedded in the top end of the pouring cavity, a limiting block is symmetrically mounted on the surface of the cover, a cavity is embedded in the cover, a pouring hub two is mounted on the top of the pouring hub one, and a connecting piece is mounted on the inner wall of the pouring hub two. The T-shaped rolling bed wheel pouring mold can quickly assemble the cover, the cavity and the hub to form a whole, the overall structure of the mold is light, the assembly time of the high-temperature heavy-load hub is effectively shortened, the outer diameter of the product after pouring can directly meet the requirements of the drawing, the subsequent machining process is saved, and the product loss in the machining process is reduced.

Description

Technical Field

[0001] This utility model relates to the field of plastic and rubber product molding technology, specifically to a casting mold for a T-shaped roller. Background Technology

[0002] As a core transmission and support component of the rolling bed system, the T-shaped roller needs to possess high strength, wear resistance, and a symmetrical structure. Therefore, casting molds are often used to produce T-shaped rollers. Casting molds are a type of mold that manufactures products through a "casting process." The core of this process is to inject molten raw materials into a pre-set cavity, and after cooling / solidification, obtain a product with a shape consistent with the cavity. They are primarily designed for "complex shape forming + mass production," and are equipped with auxiliary structures such as sprues, runners, and vents to cast heated molten raw materials. The process involves injecting raw materials into the mold cavity, filling it and adhering to the cavity walls. After natural cooling, water cooling, or curing, the mold is opened and the molded product is removed. Excess runner material can be recycled and reused. However, existing casting molds place the wheel hub in the cavity. Due to the large cavity size, the cast roller is also too large, requiring subsequent processing to obtain a roller that meets the drawing requirements. When the wheel hub's T-shape faces upward, the casting cavity must be larger than the outer diameter of the wheel hub's T-shape structure; otherwise, there will be no gate. Additionally, air bubbles are easily formed at the junction of the polyurethane and the T-shape structure. Utility Model Content

[0003] The purpose of this invention is to provide a casting mold for a T-shaped roller to solve the problem mentioned in the background art that, due to the large cavity, the cast roller is also too large, requiring subsequent processing to obtain a roller that meets the drawing requirements, and that air bubbles are easily formed at the junction of polyurethane and the T-shaped structure.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a casting mold for a T-shaped roller, comprising: a casting cavity, a cover, and a casting hub, wherein the casting cavity is configured as a hollow cylindrical shell structure, and protrusions are symmetrically installed on the surface of the casting cavity; The top of the casting cavity is symmetrically embedded with a limiting groove, the surface of the cover is symmetrically installed with limiting blocks, and the inside of the cover is embedded with a cavity. The top of the first casting hub is equipped with a second casting hub, and the inner wall of the second casting hub is equipped with a connecting piece.

[0005] Preferably, the top of the casting cavity is symmetrically provided with inclined casting ramps, and the casting ramps of the casting cavity are staggered with the limiting grooves.

[0006] Using the above technical solution, the raw material is injected through the pouring slope of the casting cavity, so that the rounded corners enter the interior of the casting cavity.

[0007] Preferably, the outer side of the protrusion is configured with a rounded corner structure, and the protrusion is located at the upper end of the surface of the casting cavity.

[0008] Using the above technical solution, the position of the casting cavity can be moved by the protrusion.

[0009] Preferably, the limiting groove is configured as a fan-shaped recess, the limiting block is configured as a fan-shaped structure, and the limiting groove and the limiting block are engaged.

[0010] By employing the above technical solution, the limiting groove and the limiting block are engaged and placed together, which can fix the position of the cover.

[0011] Preferably, the bottom of the cover is provided with a positioning boss, and the cover is disposed inside the casting cavity.

[0012] Using the above technical solution, the cover is placed inside the casting cavity, and at this time the positioning boss of the cover is placed inside the casting cavity.

[0013] Preferably, the second casting hub is a hollow structure, and the positioning boss of the cover is located inside the hollow structure of the second casting hub. The cover is engaged with the second casting hub, the bottom of the cover is in contact with the surface of the second casting hub, and the second casting hub is located inside the casting cavity.

[0014] Using the above technical solution, the end of the cover is inserted into the interior of the second casting hub, so that the two are engaged.

[0015] Preferably, the connecting piece is disposed inside the hollow structure of the second casting hub, the second casting hub, the first casting hub and the connecting piece are an integral structure, the surface of the first casting hub is set with a chamfered structure, and the bottom of the casting cavity is in contact with the surface of the first casting hub.

[0016] Using the above technical solution, the casting hub can be separated from the casting cavity by chamfering the casting hub.

[0017] Compared with the prior art, the beneficial effects of this utility model are: the casting mold for the T-shaped roller wheel: 1. By using a cover, cavity, and hub, the three can be quickly assembled into a whole. The overall structure of the mold is lightweight, which effectively shortens the assembly time of the high-temperature heavy-duty hub. At the same time, the outer diameter of the product after casting can directly meet the drawing requirements, eliminating the need for subsequent machining processes and reducing product loss during processing. 2. A casting cavity and a casting hub are provided. The design of allowing the rubber material to flow along the casting slope and air to be discharged from the gap through the casting slope of the casting cavity reduces the problems of air bubbles and material shortage, and significantly improves the product qualification rate and quality stability. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the casting cavity installation of this utility model; Figure 3 This is a three-dimensional structural diagram of the cover installation of this utility model; Figure 4 This is a three-dimensional structural diagram of the cast wheel hub of this utility model. Figure 5 This is a schematic diagram of the three-dimensional structure installed inside the casting cavity of this utility model.

[0019] In the diagram: 10, casting cavity; 101, protrusion; 102, limiting groove; 20. Lid; 201. Limiting block; 202. Cavity; 30. Casting wheel hub one; 301. Casting wheel hub two; 302. Connecting piece. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1-5 This utility model provides a technical solution: a casting mold for a T-shaped roller, including a casting cavity 10, a protrusion 101, a limiting groove 102, a cover 20, a limiting block 201, a cavity 202, a first casting hub 30, a second casting hub 301, and a connecting piece 302. The casting mold for this T-shaped roller wheel can improve the precision during the production of T-shaped roller wheels. The specific implementation method is as follows: The casting cavity 10 is a hollow cylindrical shell structure, and protrusions 101 are symmetrically installed on the surface of the casting cavity 10. A limiting groove 102 is symmetrically embedded in the top of the casting cavity 10. A limiting block 201 is symmetrically installed on the surface of the cover 20, and a cavity 202 is embedded inside the cover 20. A casting hub 301 is installed on the top of the first casting hub 30, and a connecting piece 302 is installed on the inner wall of the second casting hub 301. Inclined casting ramps are symmetrically arranged at the top of the casting cavity 10, and the casting ramps and limiting grooves 102 are staggered. The outer side of the protrusion 101 is rounded. 101 is set at the upper end of the surface of the casting cavity 10. The limiting groove 102 is set as a fan-shaped recess. The limiting block 201 is set as a fan-shaped structure. The limiting groove 102 and the limiting block 201 are engaged. The bottom of the cover 20 is provided with a positioning boss. The cover 20 is set inside the casting cavity 10. The second casting hub 301 is set as a hollow structure. The positioning boss of the cover 20 is set inside the hollow structure of the second casting hub 301. The cover 20 and the second casting hub 301 are engaged. The bottom of the cover 20 is in contact with the surface of the second casting hub 301. The second casting hub 301 is set inside the casting cavity 10. The connecting piece 302 is set inside the hollow structure of the second casting hub 301. The second casting hub 301, the first casting hub 30, and the connecting piece 302 are an integral structure. The surface of the first casting hub 30 is set with a chamfered structure. The bottom of the casting cavity 10 is in contact with the surface of the first casting hub 30.

[0022] Place the casting cavity 10, cover 20, and casting hub 30 together in a platform oven and bake to the set temperature; after removing them, as... Figure 4 First, place the first casting hub 30 stably on the operating platform. Then, insert the second casting hub 301 into the outside of the second casting hub 301 from top to bottom. At this time, the bottom of the second casting hub 301 should fit against the bottom surface of the first casting hub 30, completing the initial positioning of the cavity and the hub. Next, hold the cover 20 and align the circular protrusion at the lower end of the cover 20 with the inner diameter of the second casting hub 30. Then, adjust the angle of the cover 20 so that the limiting block 201 of the cover 20 aligns with the limiting groove 102 at the top of the second casting hub 30. Press the cover 20 down until the limiting block 201 and the limiting groove 102 are engaged. The end of the positioning boss of the cover 20 is inserted into the interior of the second casting hub 301. At this time, the bottom of the cover 20 is placed on the top surface of the second casting hub 301. Molten polyurethane material is then injected from the casting slope at the top of the casting cavity 10. The material flows slowly along the inner wall of the casting cavity 10 along the casting slope, converging from both sides towards the bottom of the casting cavity 10. At this time, the air in the casting cavity 10 is squeezed by the material and discharged from the casting slope on the opposite side, avoiding the formation of air bubbles. The casting stops when the material fills the entire casting slope of the casting cavity 10 and slightly overflows. Keep the mold stationary and wait for the polyurethane material in the cavity to cure. After curing, hold the protrusion 101 with both hands and move the protrusion 101 to move the casting cavity 10 upward. Since the limiting block 201 and the limiting groove 102 are engaged, the casting cavity 10 moves the cover 20 upward, so that the casting cavity 10 is removed from the casting wheel.

[0023] Working principle: When using the casting mold of this T-shaped roller, the cavity 202, casting hub one 30, casting hub two 301 and connecting piece 302 are set, which can improve the accuracy of T-shaped roller production and increase the overall practicality.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A casting mold for a T-shaped roller, comprising: The casting cavity (10), the cover (20) and the casting hub (30) are provided. The casting cavity (10) is configured as a hollow cylindrical shell structure, and the surface of the casting cavity (10) is symmetrically equipped with protrusions (101). The feature is that: the top of the casting cavity (10) is symmetrically embedded with a limiting groove (102), the surface of the cover (20) is symmetrically installed with a limiting block (201), and the inside of the cover (20) is embedded with a cavity (202). The top of the casting hub one (30) is installed with a casting hub two (301), and the inner wall of the casting hub two (301) is installed with a connecting piece (302).

2. The casting mold for a T-shaped roller as described in claim 1, characterized in that: The top of the casting cavity (10) is symmetrically provided with inclined casting slopes, and the casting slopes of the casting cavity (10) are staggered with the limiting groove (102).

3. The casting mold for a T-shaped roller as described in claim 1, characterized in that: The outer side of the protrusion (101) is set with a rounded corner structure, and the protrusion (101) is set at the upper end of the surface of the casting cavity (10).

4. The casting mold for a T-shaped roller as described in claim 1, characterized in that: The limiting groove (102) is configured as a fan-shaped recess, the limiting block (201) is configured as a fan-shaped structure, and the limiting groove (102) and the limiting block (201) are connected by a snap-fit ​​connection.

5. The casting mold for a T-shaped roller as described in claim 1, characterized in that: The bottom of the cover (20) is provided with a positioning boss, and the cover (20) is located inside the casting cavity (10).

6. The casting mold for a T-shaped roller wheel according to claim 1, characterized in that: The second casting hub (301) is configured as a hollow structure, and the positioning boss of the cover (20) is located inside the hollow structure of the second casting hub (301). The cover (20) and the second casting hub (301) are engaged and connected. The bottom of the cover (20) is in contact with the surface of the second casting hub (301). The second casting hub (301) is located inside the casting cavity (10).

7. The casting mold for a T-shaped roller wheel according to claim 1, characterized in that: The connecting piece (302) is disposed inside the hollow structure of the second casting hub (301). The second casting hub (301), the first casting hub (30) and the connecting piece (302) are an integral structure. The surface of the first casting hub (30) is set with a chamfered structure. The bottom of the casting cavity (10) is in contact with the surface of the first casting hub (30).

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