Bulging die with built-in induction coil

Abstract

The utility model relates to the technical field of aluminum cup processing, in particular to a bulging die with a built-in induction coil, which aims at solving the technical problems that the processing efficiency of an aluminum cup is low and the overall production efficiency is influenced when the aluminum cup is processed and produced by the existing bulging die, and comprises a bottom plate and a heating base, the top of the bottom plate is fixedly connected with a bulging die, and the bottom of the heating base is fixedly connected with symmetrically-arranged fixing blocks. The bulging die is sealed through the sealing ring, and the stainless steel heating pipe is heated through the built-in electromagnetic induction coil, so that air in a cup blank and a cup blank body are heated, the side wall of the cup blank is swelled, the volume of the cup blank is expanded, the cup blank is attached to the inner wall of the die to form a required finished product shape, and the bulging die is simple, easy to machine and low in cost. The heating pipe is convenient to replace, the induction heating speed is extremely high, the heat radiation area of the surface of the heating pipe is large, the heating speed of the cup blank is greatly increased, and the efficiency of the whole process is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of aluminum cup processing, and more specifically to a bulging die with a built-in induction coil. Background Art

[0002] In the production of aluminum cups, bulging dies can shape the aluminum plate into a cup-shaped structure by applying pressure. These dies are generally designed with grooves and protrusions of suitable shapes, so that the aluminum plate can form the required cup-shaped structure after processing. By using suitable materials and reasonably designed bulging dies, aluminum cups of various specifications and shapes can be produced to meet market demand. However, when the existing bulging dies are used to process and produce aluminum cups, the processing efficiency of the aluminum cups is relatively slow, which affects the overall production efficiency. Utility Model Content

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art, meet actual needs, and provide a built-in electromagnetic induction coil to solve the technical problem that when the existing bulging mold is used to process and produce aluminum cups, the processing efficiency of the aluminum cups is slow, which affects the overall production efficiency.

[0004] In order to solve the above technical problems, the utility model provides the following technical solutions: a bulging mold with a built-in induction coil, comprising a bottom plate and a heating base, the top of the bottom plate is fixedly connected to the bulging mold, the bottom of the heating base is fixedly connected to a symmetrically arranged fixed block, the bottom of the heating base is provided with an electromagnetic induction coil, the end of the electromagnetic induction coil extends to the top of the heating base, the outer wall of the fixed block is provided with a heating tube, the bottom of the heating base and the top opening of the bulging mold are mutually interlocking structures, the bottom of the heating base is fixedly connected to a sealing ring, the sealing ring is used to seal the gap after the heating base and the bulging mold are interlocked, and the heating tube and the electromagnetic induction coil are inserted into the bulging mold after the heating base and the bulging mold are interlocked; through the electromagnetic induction coil built into the bulging mold, the heating tube is quickly heated up, so that the cup embryo completes the bulging and fits in the inner cavity of the bulging mold to become the required finished product shape, the bulging mold is simple and easy to process with low cost, the heating tube is easy to replace, and the bulging efficiency is improved, thereby increasing the processing efficiency.

[0005] Preferably, the heating tube is made of stainless steel; stainless steel heating tubes are low in cost and can be easily replaced after being repeatedly used until the surface is oxidized.

[0006] Preferably, a pad for ejecting the cup embryo is provided on the bottom inner wall of the bulging mold; the provided pad can be used to engrave a mark on the bottom of the cup embryo and can also eject the cup embryo.

[0007] Preferably, the heating tube is connected to the fixing block by bolts, so as to facilitate the disassembly and replacement of the heating tube.

[0008] Preferably, the heating tube houses the electromagnetic induction coil; the electromagnetic induction coil is built into the heating tube made of stainless steel and will not affect the expansion process of the cup embryo.

[0009] Preferably, the heating base, the fixing block and the bulging die are all made of the same aluminum alloy non-magnetic material, so that the heating base, the fixing block and the bulging die will not generate magnetocaloric effect with the electromagnetic induction coil.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] 1. The utility model is provided with a bottom plate, a heating base, a bulging mold, a fixing block, an electromagnetic induction coil, a heating tube, and a sealing ring. The bulging mold is sealed by the sealing ring, and the stainless steel heating tube is heated by the built-in electromagnetic induction coil, so as to heat the air in the cup embryo and the cup embryo body, so that the side wall thereof bulges and the volume expands, and the cup embryo is fitted to the inner wall of the mold to form the required finished product shape. The bulging mold is simple, easy to process, and has a low cost. The heating tube is convenient to replace, and the induction heating speed is extremely fast. The surface radiation heat emission area of ​​the heating tube is large, which greatly improves the heating speed of the cup embryo and greatly improves the efficiency of the entire process.

[0012] 2. In the utility model, the electromagnetic induction coil is built into the stainless steel heating tube, which will not affect the bulging process of the cup embryo, will not move during the processing, will not produce vibration deviation, and does not need to use two half-molds to close the mold, eliminating the joint line on the appearance of the cup body.

[0013] 3. The electromagnetic induction coil in the utility model is wrapped by a heating tube made of stainless steel and a bulging mold made of aluminum alloy non-magnetic material, which has a full shielding effect and prevents the magnetic field from affecting the outside world. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the split structure of the utility model;

[0016] Figure 3 It is a cross-sectional view of the bulging die in the utility model;

[0017] Figure 4 This is a structural diagram of the aluminum cup produced by the utility model.

[0018] Description of the numbers in the figure:

[0019] 1. Bottom plate; 2. Heating base; 3. Bulging mold; 4. Fixing block; 5. Electromagnetic induction coil; 6. Heating tube; 7. Sealing ring; 8. Pad. DETAILED DESCRIPTION

[0020] like Figures 1 to 4 As shown, the utility model relates to: a bulging die with a built-in induction coil, comprising a bottom plate 1 and a heating base 2, the top of the bottom plate 1 is fixedly connected to a bulging die 3, the bottom of the heating base 2 is fixedly connected to a symmetrically arranged fixing block 4, the bottom of the heating base 2 is provided with an electromagnetic induction coil 5, the end of the electromagnetic induction coil 5 extends to the top of the heating base 2, the outer wall of the fixing block 4 is provided with a heating tube 6, the bottom of the heating base 2 and the top opening of the bulging die 3 are mutually interlocking structures, and the bottom of the heating base 2 is fixedly connected to the bottom of the heating base 2. A sealing ring 7 is fixedly connected, and the sealing ring 7 is used to seal the gap after the heating base 2 and the bulging mold 3 are fitted together. After the heating base 2 and the bulging mold 3 are fitted together, the heating tube 6 and the electromagnetic induction coil 5 are inserted into the bulging mold 3; through the electromagnetic induction coil 5 built into the bulging mold 3, the heating tube 6 is quickly heated up, so that the cup embryo completes the bulging and fits into the inner cavity of the bulging mold 3 to become the required finished product shape. The bulging mold 3 is simple, easy to process, and has low cost. The heating tube 6 is easy to replace, which improves the bulging efficiency, thereby increasing the processing efficiency.

[0021] Furthermore, the heating tube 6 is made of stainless steel; the stainless steel heating tube 6 has low cost and can be easily replaced after repeated use until the surface is oxidized.

[0022] Furthermore, a cushion block 8 for ejecting the cup embryo is disposed on the bottom inner wall of the bulging mold 3; the cushion block 8 can be used to engrave a mark on the bottom of the cup embryo and can also eject the cup embryo.

[0023] Furthermore, the heating tube 6 is connected to the fixing block 4 by bolts, so that the heating tube 6 can be easily disassembled and replaced.

[0024] Furthermore, the heating tube 6 covers the electromagnetic induction coil 5; the electromagnetic induction coil 5 is built into the heating tube 6 made of stainless steel and will not affect the bulging process of the cup embryo.

[0025] Furthermore, the heating base 2 , the fixing block 4 and the bulging die 3 are all made of the same aluminum alloy non-magnetic material, so that the heating base 2 , the fixing block 4 and the bulging die 3 will not generate a magnetocaloric effect with the electromagnetic induction coil 5 .

[0026] Working principle: This embodiment provides a bulging mold with a built-in induction coil. When in use, the cup embryo is placed in the bulging mold 3, the heating base 2 is downwardly fitted with the opening of the bulging mold 3, and the heating tube 6 is inserted into the middle of the cup embryo. An interference fit is formed by the side of the heating base 2 to support and slightly expand the cup mouth of the cup embryo, and tightly clamped around the cup mouth to ensure the sealing of the cup embryo. At this time, the built-in electromagnetic induction coil 5 is energized to quickly heat the heating tube 6 inside the cup embryo. After heating, the heat is heated through heat transfer and radiation to heat the cup embryo. At the same time, the internal air also expands due to the heat, causing the cup embryo to expand and gradually fit against the side wall of the bulging mold 3 to complete the bulging process. This electromagnetic induction coil 5 heats the stainless steel heating tube 6 to the softening temperature of the aluminum alloy cup, greatly improving the processing efficiency.

[0027] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. A bulging die with a built-in induction coil, characterized in that: The invention comprises a bottom plate (1) and a heating base (2), wherein the top of the bottom plate (1) is fixedly connected to a bulging die (3), the bottom of the heating base (2) is fixedly connected to a symmetrically arranged fixing block (4), the bottom of the heating base (2) is provided with an electromagnetic induction coil (5), the end of the electromagnetic induction coil (5) extends to the top of the heating base (2), the outer wall of the fixing block (4) is provided with a heating tube (6), the bottom of the heating base (2) and the top opening of the bulging die (3) are mutually interlocking structures, the bottom of the heating base (2) is fixedly connected to a sealing ring (7), the sealing ring (7) is used to seal the gap after the heating base (2) and the bulging die (3) are interlocked, and after the heating base (2) and the bulging die (3) are interlocked, the heating tube (6) and the electromagnetic induction coil (5) are both inserted into the bulging die (3).

2. A bulging die with a built-in induction coil according to claim 1, characterized in that: The heating tube (6) is made of stainless steel.

3. The bulging die with a built-in induction coil according to claim 1, characterized in that: The bottom inner wall of the bulging mold (3) is provided with a cushion block (8) for ejecting the cup blank.

4. The bulging die with a built-in induction coil according to claim 1, characterized in that: The heating tube (6) is connected to the fixing block (4) via bolts.

5. The bulging die with a built-in induction coil according to claim 1, characterized in that: The heating tube (6) covers the electromagnetic induction coil (5) therein.

6. The bulging die with a built-in induction coil according to claim 1, characterized in that: The heating base (2), the fixing block (4) and the bulging die (3) are all made of the same aluminum alloy non-magnetic material.

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