Equipment for separating aluminum in die cavity of extrusion die reaching service life

Abstract

The utility model relates to equipment for separating aluminum in an inner die cavity of an extrusion die reaching the service life, which comprises a heating furnace with an inner side accommodating space for placing the extrusion die, a cylindrical lower bracket with a bottom opening, and an outer support and an inner support which are arranged on the side of the bottom opening in a connecting or mounting manner, the outer support comprises a supporting part used for supporting the heating furnace, the inner support is in a hollow cylinder form, the inner side of the hollow cylinder forms a liquid drainage channel communicated with an inner side containing space of the heating furnace, and the upper end of the hollow cylinder is used for supporting an extrusion die. The outer support and the inner support are spaced apart from each other at a predetermined interval to form an annular spacing portion communicating with an inner accommodating space of the heating furnace. Thus, the mold and the aluminum alloy can be fully separated through a physical method, waste liquid cannot be generated, the recycled aluminum alloy can be smelted into a casting rod again, and the cost is greatly reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to extrusion field, concretely relates to a kind of equipment of separating extrusion die inner die cavity aluminum to reach life. BACKGROUND

[0002] Extrusion die will be according to output, product size or other circumstances to plan to scrap processing.For this, usually remove the die cavity aluminum in extrusion die, the traditional method used is separated by the characteristics that NaOH reacts with aluminum alloy but does not occur chemical reaction with steel, but this will produce waste liquid, need to find professional agency to process at own expense, and alkali washing workshop smell is offensive, and the working condition is relatively inferior.Therefore, it is expected to develop a kind of process equipment that can effectively solve the above problems. SUMMARY

[0003] To solve the above problems, the purpose of the utility model is to provide a kind of equipment of separating extrusion die inner die cavity aluminum to reach life.

[0004] According to the utility model, a kind of equipment for separating extrusion die inner die cavity aluminum to reach life is provided, including: heating furnace with the inner side containing space for placing extrusion die, lower support with the bottom opening of cylinder shape is formed, outer support and inner support are arranged in connecting or mounting mode in the outer side of bottom opening, wherein, outer support includes the support part for supporting heating furnace, inner support is formed as hollow cylinder, hollow cylinder inside forms drainage passage communicated with the inner side containing space of heating furnace, the upper end of hollow cylinder is used to support extrusion die, annular interval part communicated with the inner side containing space of heating furnace is formed with predetermined interval between outer support and inner support and each other.

[0005] Preferably, heating furnace includes: hollow cylinder-shaped inner liner on the inside side, outer thermal insulation layer on the outside side, heating coil between inner liner and outer thermal insulation layer, heat insulation cover independently arranged on the upper surface, temperature gauge is arranged in inner liner.

[0006] Preferably, heat insulation cover upper surface is provided with heat insulation cover lifting lug.

[0007] Preferably, outer support and inner support are integrally arranged in the support body of lower support in the structure of upper and lower two layers.

[0008] Preferably, the space of predetermined interval is integrally conducted to the support part of outer support and the bottom of cylinder of lower support in the form of cross section L.

[0009] Preferably, outer support and inner support are integrally formed into sleeve structure with upper end outer flange, upper end outer flange is formed into outer support in the mode of lapping the circumferential portion of bottom opening of lower support.

[0010] Preferably, in the cross section of the outer support, a plurality of hole portions are formed in the circumferential direction to communicate with the space between the inner support and the outer support.

[0011] Preferably, a container groove is arranged below the lower support and opposite to the liquid discharge passage.

[0012] Preferably, the height of the inner side accommodating space of the heating furnace is at least higher than the height of one extrusion die; and a concave stepped structure is formed at the bottom of the cylinder of the lower support with the outer side having a greater wall thickness than the inner side.

[0013] Preferably, perforations are provided on the support body and / or the outer support and / or the inner support.

[0014] The device and process can fully separate the extrusion die and the aluminum alloy by physical method, without generating waste liquid, and the recycled aluminum alloy can be remelted into a cast bar, thereby greatly reducing the cost.

[0015] In order to make the purpose, technical scheme and advantages of the utility model more clear, the utility model will be described in further detail below with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a schematic view of a device for separating aluminum in the die cavity of an extrusion die reaching service life.

[0017] Figure 2 It is a top view schematic view of an extrusion die with die cavity aluminum.

[0018] Figure 3 It is a deformation schematic view of a lower support and surrounding structure.

[0019] Explanation of reference signs: 100-heating furnace, 101-heat preservation cover, 102-thermometer, 103-inner lining, 104-heating coil, 105-outer heat preservation layer, 106-outer support, 107-inner support, 108-liquid discharge passage, 109-lower support, 110-heat preservation cover lifting lug, 200-container groove, 300-extrusion die, 301-lifting hole, 302-die cavity aluminum, 303-hollow structure. DETAILED DESCRIPTION

[0020] Exemplary embodiments of the present application are described in detail below with reference to the accompanying drawings. The exemplary embodiments described below and illustrated in the drawings are intended to teach the principles of the present application, with the understanding that the present application can be practiced in a variety of different environments and applications, and that the exemplary embodiments are for purposes of illustration and not limitation. Accordingly, the scope of the present application is to be limited only by the appended claims, and not by the exemplary embodiments described below. Furthermore, the described features, advantages, and characteristics of the application can be combined in various ways and can be used independently, collectively or in any combination thereof. In addition, for ease of description, the dimensions of the various parts shown in the drawings are not necessarily to scale, and the orientation of the various parts can be shown schematically rather than to scale. Unless otherwise specifically noted, the order of description of the components and assembly steps in the embodiments can not be limiting, and the values stated in the embodiments can not limit the scope of the application. Furthermore, any numerical range recited herein is intended to include all sub-ranges of the same numerical range. The use of "about" in relation to a numerical value refers to the range of values that would be expected by a person of ordinary skill in the art given the value and the associated precision of the value. Terms such as "first", "second", "step" and the like in the description do not necessarily connote any specific technical meaning or necessary logical sequence, but are merely used to distinguish one step, device or module from another. For example, steps two and three can be reversed or performed in parallel.

[0021] According to exemplary embodiments of the present application, there is provided an apparatus for separating the die cavity aluminum 302 in an extrusion die 300 to its life, comprising a heating furnace 100, such as a power frequency heating furnace, a heat preservation cover 101, a temperature gauge 102, such as a thermocouple, an inner lining 103, a heating coil 104, an outer insulation layer 105, an outer support 106, an inner support 107, a liquid discharge channel 108, a lower support 109, and a heat preservation cover lifting lug 110.

[0022] The extrusion die 300 with the die cavity aluminum 302 includes a lifting hole 301 and a hollow structure 303. The lifting hole 301 is used for lifting the extrusion die 300. In the hollow structure 303, the die cavity aluminum 302 to be removed is left. More specifically, in order to facilitate the lifting of the die, two threaded holes are punched on the radial sides of the end face of the die, which are called lifting holes 301. When lifting is needed, one end of the lifting rod is screwed into the lifting hole 301, and the other side of the lifting rod is a circular ring for the insertion of the lifting hook, so that the lifting of the extrusion die 300 with the die cavity aluminum 302 can be carried out. Both sides are provided with lifting holes 301, which can realize more stable lifting. The hollow structure 303 is, for example, a flow dividing hole, a welding chamber, a working belt, etc. During the extrusion process, the hollow structure 303 in the extrusion die is filled with aluminum alloy, which is generally called die cavity aluminum 302.

[0023] The heating furnace 100 includes a hollow cylindrical inner liner 103 on the inner side, an outer thermal insulation layer 105 on the outer side, a heating coil 104 between the inner liner 103 and the outer thermal insulation layer 105, and a thermal insulation cover 101 independently provided on the upper side. The thermal insulation cover 101 is welded with a thermal insulation cover lifting lug 110 on the upper side. The height of the inner side containing space on the inner side of the inner liner 103 is at least higher than the height of one extrusion die 300, and preferably at least higher than two or more. In this way, a plurality of extrusion dies 300 can be placed in the inner side containing space.

[0024] The lower support 109 includes a support body for supporting the outer support 106 of the heating furnace 100 and an inner support 107 for supporting the weight of the extrusion die 300 with the die cavity aluminum 302.

[0025] The support body is integrally formed as a bottom-opened cylinder body in an inverted state, and the end edge of the cylinder body can be placed on the ground or a platform, etc. In the inverted state, the bottom surface around the bottom opening can be used to place the heating furnace 100.

[0026] The inner support 107 is preferably integrally formed with the bottom opening side of the cylinder body of the support body in a hollow cylinder form by integral forming or welding, etc., and the inner side of the hollow cylinder constitutes a liquid discharge channel 108 communicating with the inner containing space of the heating furnace 100, serving as a channel for the downward flow of the heated and melted aluminum alloy. The upper end of the hollow cylinder is used to support the extrusion die 300 with the die cavity aluminum 302.

[0027] As shown in Figure 1 The outer support 106 is provided on the bottom of the cylinder body of the support body in a predetermined spaced-apart manner from the inner support 107, for example, can be integrally provided in two layers of upper and lower sides of the support body by connection or mounting means such as welding, bolt fixing, etc.; as shown in Figure 3As shown, it can also be integrally formed as a sleeve structure with an upper outer flange 123 (corresponding to the outer support 106). The upper outer flange 123 overlaps the periphery of the bottom of the support body's cylinder, and the inner side of the outer support 106 is spaced out from the outer side of the inner support 107, so that the sleeve structure is located at the bottom of the support body's cylinder. An annular spacer 122 communicating with the inner receiving space of the heating furnace 100 is formed between the outer support 106 and the inner support 107 at a predetermined interval.

[0028] The outer support 106 includes a support portion configured to place and thus support the weight of the inner liner 103, the outer insulation layer 105, and the heating coil 104.

[0029] like Figure 1 As shown, the predetermined interval is not limited to the area between the outer periphery of the inner support 107 and the end edge of the support portion of the outer support 106. The space of the predetermined interval can also be integrally connected in an L-shape to the area between the support portion of the outer support 106 and the bottom of the cylinder of the support body. Similarly, in Figure 3 In the cross section of the outer support 106, multiple holes (not shown) can be opened circumferentially through the outer support 106, thereby communicating with the interval between the inner support 107 and the outer support 106 to form a similar L-shaped predetermined interval.

[0030] Thus, a double support section with two separate layers, either upper and lower or inner and outer, is formed at the bottom of the main body of the support. Perforations can also be provided at the lower layer or at the connection between the inner and outer layers, i.e., at least one of the main body of the support, the outer support 106, and the inner support 107, to enhance the flow of hot air.

[0031] Therefore, preferably, a recessed stepped structure is formed at the bottom of the main body of the support, with the outer side having a larger wall thickness than the inner side, such as... Figure 1 As shown.

[0032] Below the lower support 109, a container tank 200 is arranged directly opposite the drain channel 108, allowing the molten aluminum alloy to flow through the drain channel 108 to the container tank 200 below for natural cooling. The scrap aluminum alloy will then be recast.

[0033] A thermometer 102 is preferably installed at the top of the lining 103 to monitor changes in internal temperature.

[0034] <Example>

[0035] The inner lining 103 is cylindrical, made of high carbon steel, grade: T8, with an inner diameter of 500 (±2) mm and an outer diameter of 650 (±2) mm.

[0036] The outer thermal insulation layer 105 is made of thermal insulation bricks. The inner diameter is 980 (±3) mm, and the outer diameter is 1180 (±3) mm. The thermal insulation bricks are light clay bricks with the brand N-34.

[0037] The heating coil 104 is made of copper wire with the brand T1 and a diameter of 300 (±0.2) mm, which can provide high-frequency power and heat to a maximum temperature of 1200℃.

[0038] The upper side independent thermal insulation cover 101 is made of steel shell and filled with thermal insulation cotton. The uppermost part of the thermal insulation cover 101 is welded with a thermal insulation cover lifting lug 110.

[0039] The outer support 106, the inner support 107, and the lower support 109 are made of high-carbon steel with the brand T8. The outer support 106 and the inner support 107 are partially parallel and not adjacent to each other.

[0040] The drainage channel 108 has a smaller diameter than the diameter of the extrusion die 300. The outer diameter of the extrusion die 300 is 250 (±0.5) mm, and the diameter of the drainage channel 108 is 200 (±1) mm.

[0041] The container groove 200 is made of high-carbon steel with the brand T8, and the inner volume is 3-3.5 m 3 .

[0042] The lifting hole 301 of the extrusion die 300 with the die cavity aluminum 302 is on both sides of the diameter of the extrusion die 300, with an inner diameter of 20 (±0.2) mm and a depth of 25 (±1) mm.

[0043] <Usage and process method>

[0044] Before use, first use the overhead crane to hang the thermal insulation cover lifting lug 110 of the thermal insulation cover 101, and adjust the thermal insulation cover 101 away from the industrial frequency heating furnace 100.

[0045] Then use two lifting rods to screw into the two lifting holes 301 of the extrusion die 300 with the die cavity aluminum 302, and the overhead crane hangs one end of the lifting rod, and the extrusion die 300 with the die cavity aluminum 302 is placed in the industrial frequency heating furnace 100 in sequence. As shown in Figure 1 , two extrusion dies 300 with die cavity aluminum 302 are shown overlapped.

[0046] The overhead crane hoists the thermal insulation cover 101 back to the original position.

[0047] The inner wall of the container groove 200 is sprayed with a water solution of talcum powder, and dried with a spray gun, which facilitates the separation of the aluminum alloy from the inner wall of the container groove 200.

[0048] The heating coil 104 is powered, and the temperature is set between 800-1200℃. The melting point of the aluminum alloy is between 570℃ and 660℃, and the extrusion die is generally high-carbon steel with a melting point of 1400-1500℃, so the aluminum alloy can be quickly melted.

[0049] The melted aluminum alloy is affected by gravity, passes through the drainage channel 108, and falls into the container groove 200 to collect, thereby realizing the separation of the aluminum 302 in the extrusion die cavity from the extrusion die 300.

[0050] After heating for 10-15 minutes, the power is turned off.

[0051] The heat preservation cover 101 is lifted out. The extrusion die without the die cavity aluminum 302 is lifted out in turn.

[0052] After the aluminum alloy in the container groove 200 solidifies, the container groove 200 and the aluminum alloy inside are pulled out, the container groove 200 is inverted, the aluminum alloy falls out, and a forklift is used to transfer it to the casting workshop for use.

[0053] In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified. Unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above-mentioned terms in the present application can be understood according to the specific circumstances. Although the present application has been described with reference to various specific embodiments, it should be understood that modifications can be made within the spirit and scope of the described inventive concept. Therefore, it is intended that the present application not be limited to the described embodiments, but rather have the full scope defined by the language of the appended claims.

Claims

1. An apparatus for separating aluminum from a die cavity in an extrusion die to a life span, characterized by, The application relates to a heating furnace (100) with an inner accommodating space for placing an extrusion die, a lower support (109) in the shape of a cylinder with an open bottom, an outer support (106) and an inner support (107) arranged in a connecting or mounting mode on the outer side of the open bottom, wherein the outer support (106) comprises a support part for supporting the heating furnace (100), the inner support (107) is in the form of a hollow cylinder, the inner side of the hollow cylinder forms a liquid discharge channel (108) in communication with the inner accommodating space of the heating furnace (100), the upper end of the hollow cylinder is used for supporting the extrusion die (300), and annular spacing parts (122) in communication with the inner accommodating space of the heating furnace (100) are formed at a predetermined interval between the outer support (106) and the inner support (107) and spaced from each other. The heating furnace (100) comprises an inner liner (103) in the form of a hollow cylinder on the inner side, an outer thermal insulation layer (105) on the outer side, a heating coil (104) between the inner liner (103) and the outer thermal insulation layer (105), a thermal insulation cover (101) arranged independently on the upper side, and a temperature gauge (102) arranged in the inner liner (103).

2. The apparatus for separating the extrusion die inner cavity aluminum of the life according to claim 1, characterized in that, The thermal insulation cover (101) is provided with a thermal insulation cover lifting lug (110) on the upper side.

3. The apparatus of claim 2, wherein, The outer support (106) and the inner support (107) are integrally arranged in the form of two layers of upper and lower structures on the support main body of the lower support (109).

4. The apparatus of claim 1, wherein, The space at the predetermined interval is integrally communicated to the space between the support part of the outer support (106) and the bottom of the cylinder of the lower support (109) in the form of a cross-section L.

5. The apparatus of claim 4, wherein the apparatus further comprises a plurality of sensors configured to measure a plurality of parameters of the aluminum within the die cavity of the extrusion die. The outer support (106) and the inner support (107) are integrally formed in the form of a sleeve structure with an upper end outer flange (123), and the upper end outer flange (123) is arranged in the form of the outer support (106) lapping the peripheral part of the bottom opening of the lower support (109).

6. The apparatus of claim 1, wherein, In the cross-section of the outer support (106), a plurality of hole parts penetrating through the outer support (106) are arranged along the circumferential direction, thereby being communicated with the space at the predetermined interval between the inner support (107) and the outer support (106).

7. The apparatus of claim 6, wherein, A container groove (200) is arranged below the lower support (109) and opposite to the liquid discharge channel (108).

8. The apparatus of claim 1, wherein, The height of the inner accommodating space of the heating furnace (100) is at least higher than the height of one extrusion die (300); and a concave stepped structure is formed on the bottom of the cylinder of the lower support (109) in the form that the outer side has a larger wall thickness than the inner side.

9. The apparatus of claim 1, wherein, Perforations are arranged on the support main body and / or the outer support (106) and / or the inner support (107).

10. The apparatus of claim 1, wherein, ​

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