Self-heating powder mold

Abstract

The utility model discloses a self-heating powder mold which comprises a base and further comprises a heating mechanism, the surface of the base is detachably connected with the heating mechanism, and the heating mechanism comprises a lower mold base, a mold cavity, an inserting groove, a heat insulation layer, a supporting plate, a hollow inserting column and an electric heating wire. The lower die base is integrally formed on the top of the base, the die cavity for powder shaping is formed in the lower die base, when powder is poured into the die cavity and compacted by the pressurizing mechanism, heat generated by the electric heating wire is used for rapidly heating the powder in the die cavity, the shaping speed is increased, and the shaping efficiency is improved. The finished product can be conveniently taken out from the bottom of the mold cavity only by separating the base from the supporting plate after shaping, use is convenient, and compared with an existing heat conduction oil heating mode, the mold is small in overall size and low in manufacturing and production cost.

Description

Technical Field

[0001] The utility model relates to the technical field of powder molds, in particular to a self-heating powder mold. Background Art

[0002] Powder processing molds refer to molds used to process and shape powder raw materials. Most common powder molds are produced and shaped by extrusion. Powder extrusion shaping is divided into hot extrusion and cold extrusion. It is a common shaping processing mold and is widely used.

[0003] The existing hot extrusion dies for powder processing have the following disadvantages when used: the hot extrusion die is a common die that heats the powder inside the die by heating the die during the powder extrusion and shaping process, thereby accelerating the shaping of the powder. The existing hot extrusion die often uses external heat transfer oil to heat the die through the circulation of high-temperature heat transfer oil. Although it has the characteristics of high heating efficiency and fast speed, the die occupies a large space and must be equipped with heat transfer oil heating and circulation equipment, and the production cost is high. For this reason, we propose a self-heating powder die. Utility Model Content

[0004] The main purpose of the utility model is to provide a self-heating powder mold. By means of a heating mechanism arranged on the top of the base, the self-heating treatment of the mold by the heating component inside the mold is realized, which greatly reduces the space occupied by the mold, reduces the production cost, and can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A self-heating powder mold comprises a base and a heating mechanism. The heating mechanism is detachably connected to the surface of the base. The heating mechanism comprises a lower mold base, a mold cavity, a slot, a temperature insulation layer, a support plate, a hollow plug and a heating wire. The top of the base is integrally formed with the lower mold base, and the lower mold base is provided with a mold cavity for shaping the powder. The top of the support plate is provided with a hollow plug corresponding to the slot position and inserted into the slot, and the hollow plug is provided with a heating wire for providing a heat source.

[0007] Furthermore, it also includes a pressurizing mechanism. The top of the base is equipped with a pressurizing mechanism, and the pressurizing mechanism includes a connecting seat, an upper mold seat, a limiting groove, a lower mold plate, a limiting block, an electric heating rod and a heat conducting plate. The bottom of the connecting seat is equipped with an upper mold seat corresponding to the position of the lower mold seat and inserted into the mold cavity, and the bottom of the upper mold seat is detachably connected to the lower mold plate. According to the finished product to be processed, a suitable lower mold plate is selected, and the limiting block of the lower mold plate is aligned with the limiting groove of the upper mold seat and inserted. After being inserted into place, the end of the heat conducting plate inside the lower mold plate is just fitted to the bottom of the surface of the electric heating rod, and the surface of the heat conducting plate is connected to the protruding part of the lower mold plate. During the pressing process of the lower mold plate, the heat generated by the electric heating rod is used to heat the lower mold plate and its protruding part, and then its surface and interior are heated during the powder shaping process to improve the uniformity of heating.

[0008] Furthermore, a thermal insulation layer is attached to the side of the lower mold base away from the mold cavity, the thermal insulation layer is made of glass fiber, and the inner circumference of the mold cavity is made of copper; the thermal insulation layer is made of glass fiber, and the attached thermal insulation layer can reduce heat dissipation to the outside, and the copper mold cavity has excellent thermal conductivity.

[0009] Furthermore, a limiting groove is provided at the bottom of the upper die base and a limiting block is integrally formed on the top of the lower die plate and inserted into the limiting groove; the upper die base and the lower die plate are connected together through the cooperation of the limiting groove and the limiting block.

[0010] Furthermore, an electric heating rod providing heat source for the upper mold is installed inside the upper mold base, and a heat conductive sheet for facilitating heat transfer is installed inside the lower mold plate; the heat generated by the electric heating rod being energized is evenly transferred to the lower mold plate through the heat conductive sheet.

[0011] Compared with the prior art, the utility model has the following beneficial effects: a slot is provided at the inner bottom end of the lower die seat, and a hollow plug containing a heating wire is inserted into the slot when in use, and the base and the support plate are fitted together, and the heat generated by the heating wire is transferred to the inside of the mold cavity. When the powder is poured into the mold cavity and compacted by the pressure mechanism, the heat generated by the heating wire is used to quickly heat the powder inside the mold cavity, thereby accelerating the shaping rate. After shaping, the base and the support plate only need to be separated to conveniently take out the finished product from the bottom of the mold cavity. It is convenient to use and is much easier to use than the existing thermal oil heating The method has the advantages of small overall mold volume and low manufacturing production cost; a suitable lower pressing template is selected according to the finished product to be processed, and the limiting block of the lower pressing template is aligned with the limiting groove of the upper mold base and inserted into it. After being inserted into place, the end of the heat conductive sheet inside the lower pressing template is just fitted to the bottom of the surface of the electric heating rod, and at the same time, the surface of the heat conductive sheet is connected to the protruding part of the lower pressing template. During the pressing process of the lower pressing template, the heat generated by the electric heating rod is used to heat the lower pressing template and its protruding part, and then the surface and the inside are heated during the powder shaping process, thereby improving the uniformity of heating. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 The utility model is a schematic diagram of the overall structure of a self-heating powder mold.

[0013] Figure 2 The utility model is a schematic diagram of the heating mechanism structure of a self-heating powder mold.

[0014] Figure 3 The utility model is a schematic diagram of the structure of a pressurizing mechanism of a self-heating powder mold.

[0015] In the figure: 1. base; 2. heating mechanism; 201. lower mold base; 202. mold cavity; 203. slot; 204. thermal insulation layer; 205. support plate; 206. hollow plug; 207. heating wire; 3. pressurizing mechanism; 301. connecting seat; 302. upper mold base; 303. limiting groove; 304. lower pressing template; 305. limiting block; 306. heating rod; 307. thermal conductive sheet. DETAILED DESCRIPTION

[0016] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0017] like Figure 1-3 As shown, a self-heating powder mold includes a base 1 and a heating mechanism 2. The heating mechanism 2 is detachably connected to the surface of the base 1. The heating mechanism 2 includes a lower mold base 201, a mold cavity 202, a slot 203, an insulation layer 204, a support plate 205, a hollow plug 206 and a heating wire 207. The top of the base 1 is integrally formed with the lower mold base 201, and the lower mold base 201 is provided with a mold cavity 202 for shaping the powder. The top of the support plate 205 is provided with a hollow plug 206 corresponding to the position of the slot 203 and inserted into the slot 203, and the hollow plug 206 is provided with a heating wire 207 for providing a heat source.

[0018] Among them, it also includes a pressurizing mechanism 3, the top of the base 1 is equipped with a pressurizing mechanism 3, the pressurizing mechanism 3 includes a connecting seat 301, an upper mold seat 302, a limiting groove 303, a lower pressing template 304, a limiting block 305, an electric heating rod 306 and a heat conducting sheet 307, the bottom of the connecting seat 301 is installed with an upper mold seat 302 corresponding to the position of the lower mold seat 201 and inserted into the mold cavity 202, and the bottom of the upper mold seat 302 is detachably connected with the lower pressing template 304; select a suitable lower pressing template 304 according to the finished product to be processed, and place the lower pressing template 304 on the upper mold seat 302. The limit block 305 of the pressing plate 304 is aligned with the limit groove 303 of the upper mold base 302 and inserted into it. After being inserted into place, the end of the heat conductive plate 307 inside the lower pressing plate 304 is just in contact with the bottom of the surface of the electric heating rod 306. At the same time, the surface of the heat conductive plate 307 is connected to the protruding part of the lower pressing plate 304. During the pressing process of the lower pressing plate 304, the heat generated by the electric heating rod 306 is used to heat the lower pressing plate 304 and its protruding part, and then the surface and interior of the lower pressing plate are heated during the powder shaping process, thereby improving the uniformity of heating.

[0019] Among them, a thermal insulation layer 204 is attached to the side of the lower mold base 201 away from the mold cavity 202. The thermal insulation layer 204 is made of glass fiber, and the inner periphery of the mold cavity 202 is made of copper. The thermal insulation layer 204 is made of glass fiber, and the attached thermal insulation layer 204 can reduce the heat dissipation to the outside, and the copper mold cavity 202 has excellent thermal conductivity.

[0020] Among them, a limiting groove 303 is set at the bottom of the upper mold base 302 and a limiting block 305 is integrally formed on the top of the lower pressure mold plate 304 and is inserted into the limiting groove 303. An electric heating rod 306 for providing a heat source for the upper mold is installed inside the upper mold base 302, and a heat conductive sheet 307 for facilitating heat transfer is installed inside the lower pressure mold plate 304. The upper mold base 302 and the lower pressure mold plate 304 are connected together by the cooperation of the limiting groove 303 and the limiting block 305, and the heat generated by the electric heating rod 306 when it is energized is evenly transferred to the lower pressure mold plate 304 through the heat conductive sheet 307.

[0021] It should be noted that the utility model is a self-heating powder mold. When working, a slot 203 is provided at the bottom end of the lower mold base 201. A hollow plug 206 containing a heating wire 207 is inserted into the slot 203 when in use. At the same time, the base 1 and the support plate 205 are fitted together. The heat generated by the heating wire 207 is transmitted to the inside of the mold cavity 202. When the powder is poured into the mold cavity 202 and compacted by the pressure mechanism 3, the heat generated by the heating wire 207 is used to quickly heat the powder in the mold cavity 202 to accelerate the shaping rate. After shaping, the base 1 only needs to be separated from the support plate 205 to conveniently take out the finished product from the bottom of the mold cavity 202. It is convenient to use and has a high performance compared to the existing guide molds. The hot oil heating method has a small overall mold size and low manufacturing production cost. According to the finished product to be processed, a suitable lower pressing template 304 is selected, and the limit block 305 of the lower pressing template 304 is aligned with the limit groove 303 of the upper mold base 302 and inserted. After being inserted into place, the end of the heat conductive sheet 307 inside the lower pressing template 304 is just fitted to the bottom of the surface of the electric heating rod 306, and at the same time, the surface of the heat conductive sheet 307 is connected to the protruding part of the lower pressing template 304. During the pressing process of the lower pressing template 304, the heat generated by the electric heating rod 306 is used to heat the lower pressing template 304 and its protruding part, and then its surface and interior are heated during the powder shaping process to improve the uniformity of heating.

[0022] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A self-heating powder mold, comprising a base (1), characterized in that: The invention also comprises a heating mechanism (2), wherein the surface of the base (1) is detachably connected with the heating mechanism (2), and the heating mechanism (2) comprises a lower die seat (201), a die cavity (202), a slot (203), a temperature insulation layer (204), a support plate (205), a hollow plug post (206) and a heating wire (207); the top of the base (1) is integrally formed with the lower die seat (201), and the lower die seat (201) is provided with a die cavity (202) for shaping the powder material; the top of the support plate (205) is provided with a hollow plug post (206) corresponding to the position of the slot (203) and inserted into the slot (203), and the hollow plug post (206) is provided with a heating wire (207) for providing a heat source.

2. A self-heating powder mold according to claim 1, characterized in that: The invention also comprises a pressurizing mechanism (3), wherein the top of the base (1) is provided with the pressurizing mechanism (3), wherein the pressurizing mechanism (3) comprises a connecting seat (301), an upper die seat (302), a limiting groove (303), a lower pressing template (304), a limiting block (305), an electric heating rod (306) and a heat conducting sheet (307), wherein an upper die seat (302) corresponding to the position of the lower die seat (201) and inserted into the mold cavity (202) is installed at the bottom of the connecting seat (301), and a lower pressing template (304) is detachably connected to the bottom of the upper die seat (302).

3. A self-heating powder mold according to claim 1, characterized in that: A temperature insulation layer (204) is attached to the side of the lower mold base (201) away from the mold cavity (202), the temperature insulation layer (204) is made of glass fiber, and the inner periphery of the mold cavity (202) is made of copper.

4. A self-heating powder mold according to claim 2, characterized in that: A limiting groove (303) is provided at the bottom of the upper die seat (302), and a limiting block (305) is integrally formed on the top of the lower die plate (304) and is inserted into the limiting groove (303).

5. The self-heating powder mold according to claim 2, characterized in that: The upper die base (302) is internally provided with an electric heating rod (306) for providing a heat source for the upper die. A heat conducting sheet (307) is installed inside the lower pressing template (304) to facilitate heat transfer.

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