Preheating structure for aluminum material extruding machine
By employing a preheating structure consisting of a fan and a heating plate in the aluminum extrusion press, the problems of long heating time and poor uniformity of aluminum billets have been solved, achieving rapid and uniform preheating of aluminum materials and improving production efficiency and extrusion quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-10
- Publication Date
- 2026-03-20
AI Technical Summary
In the traditional aluminum extrusion process, the thermal resistance between the aluminum billet and the heating element is relatively large, which means that heat needs to go through multiple radiation, convection and conduction to reach the core of the aluminum billet. This prolongs the heating time and results in poor uniformity and low production efficiency.
A preheating structure including a fan and a heating plate is adopted. The heating wire in the heating plate heats the cold air to form hot air, which is then blown evenly onto the aluminum material through nozzles that are evenly distributed. Combined with a clamping and supporting mechanism, a rapid and uniform preheating effect is achieved.
It significantly improves heating efficiency, shortens heating time, ensures uniform heating of aluminum materials, reduces deformation and cracking caused by uneven temperature, and improves the quality of aluminum extrusions.
Smart Images
Figure CN224010841U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to aluminum material processing technical field especially relates to a preheating structure for aluminum material extruding machine. BACKGROUND
[0002] Aluminum material extruding machine is a kind of metal forming equipment for processing aluminum billet (aluminum ingot or aluminum bar) into specific cross-sectional shape through die, widely used in building, traffic, aerospace and other fields, and its core function is to make aluminum material plastic deformation by high pressure, so as to obtain the required cross-sectional shape (such as aluminum door and window profile, radiator profile, etc.).
[0003] But the heating before traditional aluminum material extrusion mainly relies on resistance heating furnace, and the aluminum billet is radiated or conducted by electric heating element (such as silicon-carbon rod, resistance wire), but the thermal resistance between aluminum billet and electric heating element is large, and the heat needs to be radiated, convected and conducted for several times to reach the center of aluminum billet, further prolongs the heating time, which may cause long preheating time and poor uniformity inside, and low production efficiency.
[0004] For example: the aluminum billet needs to be gradually heated from initial temperature to target temperature after entering the furnace, and the preheating time proportion is large, and due to the uneven temperature field distribution in the furnace (especially for long size aluminum billet), the temperature difference between the two ends and the center of aluminum billet is large, which may cause local deformation uneven in extrusion process. UTILITY MODEL CONTENTS
[0005] The utility model discloses a kind of preheating structures for aluminum material extruding machine, to solve the technical problem that the thermal resistance between aluminum billet and electric heating element is large, heat needs to be radiated, convected and conducted for several times to reach the center of aluminum billet, further prolongs the heating time, which may cause long preheating time and poor uniformity inside, and low production efficiency.
[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:
[0007] A kind of preheating structure for aluminum material extruding machine, including heating furnace, both sides outer wall of the heating furnace is equipped with mounting plate, further include: preheating mechanism: located in the inside of the heating furnace, the preheating mechanism includes fan and heating plate, the inside of the heating plate is hollow structure, the inside of the heating plate is equipped with heating wire, one end of the heating plate is fixedly connected with the air outlet of the fan, the fan is fixedly installed in one side of one of the mounting plate, the inner wall of the heating plate is equipped with multiple nozzles that are distributed at equal distances;
[0008] Clamping mechanism: located at both sides of the heating furnace;Supporting mechanism: located below the clamping mechanism.
[0009] By adopting the technical scheme, the aluminum blank can be rapidly preheated, the heating efficiency is improved, and the heating time is shortened, in particular, the device is installed on one side of an aluminum extruding machine, the aluminum blank is placed in the heating furnace for heating before extruding, the two ends of the aluminum blank are clamped and fixed by the clamping mechanism, the heating wires in the heating plate and the fan are powered on, when the fan works, external cold air is sucked in and heated by the heating wires in the heating plate to form hot air, and then the hot air is sprayed out through the plurality of equidistantly distributed nozzles, the nozzles uniformly blow the hot air to the aluminum blank, rapid and uniform preheating effect is achieved, and the hot air can be uniformly and rapidly blown to the aluminum blank through the cooperation of the heating plate with the screw structure and the fan, rapid preheating and heating effect are achieved.
[0010] In a preferred scheme, the clamping mechanism comprises two electric telescopic rods and two clamping plates, two installation grooves are formed in the inner wall of one side of the heating furnace, the electric telescopic rods are fixedly installed on the inner wall of the installation grooves, the movable ends of the electric telescopic rods are fixedly connected with a connecting plate, two limiting rods and a connecting rod are arranged on one side of the connecting plate, a fixed opening is formed in one side of the outer wall of each of the two installation plates, one of the clamping plates is fixedly installed on one side of the inner wall of the fixed opening, and one end of the two limiting rods and the connecting rod is fixedly connected with the other clamping plate, and the limiting rods and the connecting rod penetrate through one side of the inner wall of the fixed opening.
[0011] In the scheme, the electric telescopic rods can accurately control the moving distance and clamping force of the clamping plates through telescopic movement, the design enables the two clamping plates to relatively move, and the design of the clamping mechanism enables the clamping force and position of the clamping plates to be flexibly adjusted, the telescopic amount of the electric telescopic rods can be adjusted according to the diameter size of the aluminum blank, so that the clamping force and position of the clamping plates are changed to adapt to the heating requirements of aluminum blanks of different specifications.
[0012] In a preferred scheme, the supporting mechanism comprises a supporting frame, five installation cylinders are arranged on the top outer wall of the supporting frame, vertical rods are threadedly connected to the inner wall of the installation cylinders, a horizontal plate is arranged at one end of the vertical rods, the horizontal plate is a hollow structure, an adjusting rod is connected to the inside of the horizontal plate through a bearing, a knob is fixedly connected to one end of the adjusting rod, two moving blocks are threadedly connected to the circumferential outer wall of the adjusting rod, supporting wheels are connected to the top outer wall of the moving blocks through bearings, and two threads in opposite directions are formed in the circumferential outer wall of the adjusting rod.
[0013] In the scheme, the threaded connection mode of the mounting cylinder and the stand rod can be adjusted in height according to the needs to adapt to the heating needs of aluminum materials of different specifications, when the adjusting rod rotates, due to the opposite direction of the threads, the two moving blocks will move in opposite directions along the axial direction of the adjusting rod, the top outer wall of the moving block is connected with a supporting wheel through a bearing, the supporting wheel can adjust the position with the movement of the moving block, thereby realizing the support and guidance of the aluminum material.
[0014] As can be seen from the above, the preheating structure for the aluminum material extruding machine comprises a heating furnace, mounting plates are arranged on the outer walls of the two sides of the heating furnace, and the preheating structure comprises a fan and a heating plate. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 The whole structure schematic view of the preheating structure for the aluminum material extruding machine is provided.
[0016] Figure 2 The preheating mechanism structure schematic view of the preheating structure for the aluminum material extruding machine is provided.
[0017] Figure 3 The support mechanism structure schematic view of the preheating structure for the aluminum material extruding machine is provided.
[0018] Figure 4 The support mechanism explosion view of the preheating structure for the aluminum material extruding machine is provided.
[0019] Figure 5 The clamping mechanism structure schematic view of the preheating structure for the aluminum material extruding machine is provided.
[0020] In the drawings: 1, heating furnace; 2, fan; 3, mounting plate; 4, fixed plate; 5, support frame; 6, handle; 7, heating plate; 8, nozzle; 9, mounting cylinder; 10, stand rod; 11, cross plate; 12, adjusting rod; 13, moving block; 14, supporting wheel; 15, electric telescopic rod; 16, connecting rod; 17, clamping plate; 18, gasket. DETAILED DESCRIPTION
[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.
[0022] The preheating structure for the aluminum material extruding machine disclosed by the utility model is mainly applied to the scene that the thermal resistance between aluminum billets and electric heating elements is large, heat needs to be radiated, convected and conducted for multiple times to reach the center of the aluminum billets, the heating time is further prolonged, the preheating time in the aluminum billets is long and uniformity is poor, and the production efficiency is low.
[0023] Referring to Figure 1 and Figure 2 A preheating structure for an aluminum material extruding machine, comprising a heating furnace 1, both sides of the heating furnace 1 are provided with mounting plates 3, further comprising: a preheating mechanism: located in the interior of the heating furnace 1, the preheating mechanism comprises a fan 2 and a heating plate 7, the interior of the heating plate 7 is a hollow structure, the interior of the heating plate 7 is provided with heating wires, one end of the heating plate 7 is fixedly connected with the air outlet of the fan 2, the fan 2 is fixedly installed on one side of one of the mounting plates 3, and the inner wall of the heating plate 7 is provided with a plurality of nozzles 8 distributed at equal distances; a clamping mechanism: located on both sides of the heating furnace 1; a supporting mechanism: located below the clamping mechanism.
[0024] The interior of the heating furnace 1 is a cylindrical structure, the heating plate 7 is a spiral structure, and the plurality of nozzles 8 distributed at equal distances blow hot air uniformly to the aluminum material, thereby further ensuring the uniform heating effect of the aluminum material, which helps to reduce the problems of deformation and cracking of the aluminum material caused by uneven temperature and improve the quality of the aluminum extruded part.
[0025] Specifically, the device is located on one side of the aluminum material extruding machine, and the aluminum material is placed in the heating furnace 1 for heating before being extruded, the clamping mechanism clamps and fixes the two ends of the aluminum material, then the heating wires in the heating plate 7 and the fan 2 are powered on, when the fan 2 works, the external cold air is sucked in and heated by the heating wires in the interior of the heating plate 7 to form hot air, and then the hot air is sprayed out through the plurality of nozzles 8 distributed at equal distances, the nozzles 8 blow the hot air uniformly to the aluminum material, realizing the effect of rapid and uniform preheating, the hot air can be uniformly and rapidly blown to the aluminum material through the cooperation of the heating plate 7 with the spiral structure and the fan 2, realizing the effects of rapid preheating and heating, and compared with the traditional heating mode, this heating mode can significantly improve the heating efficiency and shorten the heating time.
[0026] Reference Figure 1 and Figure 5 In a preferred embodiment, the clamping mechanism includes two electric telescopic rods 15 and two clamping plates 17. Two mounting slots are provided on one side of the inner wall of the heating furnace 1. The electric telescopic rods 15 are fixedly installed on the inner wall of the mounting slots. A connecting plate is fixedly connected to the movable end of the electric telescopic rods 15. Two limiting rods and a connecting rod 16 are provided on one side of the outer wall of the connecting plate. A fixing opening is provided on one side of the outer wall of the two mounting plates 3. One clamping plate 17 is fixedly installed on one side of the inner wall of the fixing opening. One end of the two limiting rods and the connecting rod 16 is fixedly connected to the other clamping plate 17. The limiting rods and the connecting rod 16 both pass through one side of the inner wall of the fixing opening.
[0027] The two clamping plates 17 form a ring structure, which can fit tightly against the outer wall of the aluminum material and provide uniform clamping force.
[0028] In the specific implementation process, five equidistant gaskets 18 are provided on one inner wall of the clamping plate 17. The gaskets 18 are all made of high temperature resistant materials, such as ceramic fiber gaskets 18, which have good high temperature resistance and can withstand temperatures up to 1000℃ or even higher. They will not react chemically with aluminum. These gaskets 18 can increase the friction between the clamping plate 17 and the aluminum material, and prevent the aluminum material from sliding or rotating during the heating process.
[0029] Reference Figure 3 and Figure 4 In a preferred embodiment, the support mechanism includes a support frame 5. The top outer wall of the support frame 5 is provided with five mounting cylinders 9. The inner wall of the mounting cylinders 9 is connected to a vertical rod 10 by a thread. One end of the vertical rod 10 is provided with a horizontal plate 11. The interior of the horizontal plate 11 is hollow. An adjusting rod 12 is connected to the interior of the horizontal plate 11 by a bearing. A knob is fixedly connected to one end of the adjusting rod 12. The outer circumference of the adjusting rod 12 is connected to two moving blocks 13 by a thread. The top outer wall of the moving blocks 13 is connected to a support wheel 14 by a bearing. The outer circumference of the adjusting rod 12 has two threads in opposite directions.
[0030] It should be noted that the position of the support frame 5 is higher than the position of the nozzle 8 on the bottom inner wall of the heating plate 7.
[0031] The support frame 5 is fixedly installed on one outer wall of the heating furnace 1, and the other outer wall of the heating furnace 1 is provided with a fixing plate 4. One end of the support frame 5 is snapped into the top outer wall of the fixing plate 4. One outer wall of the support frame 5 is provided with a handle 6. This arrangement facilitates the maintenance or replacement of the support wheel 14. When the support wheel 14 needs to be maintained or replaced, the support frame 5 can be removed from the fixing plate 4. The fixing plate 4 and the support frame 5 work together to provide stable support for the support mechanism on the support frame 5.
[0032] In the specific use process, a scale can be equipped on one side of the outer wall of the mounting plate 3, so as to better control the distance between the two supporting wheels 14.
[0033] Specifically, through the threaded connection between the mounting cylinder 9 and the vertical rod 10, the height can be adjusted according to the needs to adapt to the heating needs of aluminum materials of different specifications. When the adjusting rod 12 rotates, the two moving blocks 13 will move in opposite directions along the axial direction of the adjusting rod 12 due to the opposite directions of the threads. The top outer wall of the moving block 13 is connected with the supporting wheel 14 through a bearing, and the supporting wheel 14 can adjust the position with the movement of the moving block 13, thereby realizing the support and guidance of the aluminum material.
[0034] Working principle: The device is located on one side of the aluminum extruder. Before extruding the aluminum material, it is first placed in the heating furnace 1 for heating. The clamping mechanism clamps and fixes the two ends of the aluminum material, and then the heating wires in the heating plate 7 and the fan 2 are powered on. When the fan 2 works, it will suck the external cold air and heat it through the heating wires inside the heating plate 7 to form hot air, which is then sprayed through multiple equally distributed nozzles 8. These nozzles 8 blow the hot air evenly to the aluminum material, achieving a rapid and uniform preheating effect. Through the cooperation of the spiral structure of the heating plate 7 and the fan 2, the hot air can be evenly and quickly blown to the aluminum material, achieving a rapid preheating and heating effect. This heating method can significantly improve the heating efficiency and shorten the heating time compared with the traditional heating method.
[0035] The above is only the preferred specific implementation of the present application, but the protection scope of the present application is not limited to this. The replacement can be the replacement of part of the structure, device, method step, or the complete technical solution. According to the technical solution and the utility model concept of the present application, equivalent replacement or change should be covered within the protection scope of the present application.
Claims
1. A preheating structure for an aluminum extrusion press, comprising a heating furnace (1), characterized in that, The heating furnace (1) is provided with mounting plates (3) on both outer walls, and also includes: Preheating mechanism: Located inside the heating furnace (1), the preheating mechanism includes a fan (2) and a heating plate (7). The heating plate (7) has a hollow structure inside and a heating wire is provided inside. One end of the heating plate (7) is fixedly connected to the air outlet of the fan (2). The fan (2) is fixedly installed on one side of one of the mounting plates (3). The inner wall of the heating plate (7) is provided with multiple nozzles (8) that are evenly distributed. Clamping mechanism: located on both sides of the heating furnace (1); Support mechanism: located below the clamping mechanism.
2. The preheating structure for an aluminum extrusion press according to claim 1, characterized in that, The interior of the heating furnace (1) is cylindrical, and the heating plate (7) is spiral.
3. The preheating structure for an aluminum extrusion press according to claim 2, characterized in that, The clamping mechanism includes two electric telescopic rods (15) and two clamping plates (17). Two mounting slots are opened on one side of the inner wall of the heating furnace (1). The electric telescopic rods (15) are fixedly installed on the inner wall of the mounting slots. The movable end of the electric telescopic rods (15) is fixedly connected to a connecting plate. Two limiting rods and a connecting rod (16) are provided on one side of the outer wall of the connecting plate. A fixing opening is opened on one side of the outer wall of the two mounting plates (3). One of the clamping plates (17) is fixedly installed on one side of the inner wall of the fixing opening. One end of the two limiting rods and the connecting rod (16) is fixedly connected to the other clamping plate (17). The limiting rods and the connecting rod (16) both penetrate through one side of the inner wall of the fixing opening.
4. The preheating structure for an aluminum extrusion press according to claim 3, characterized in that, The two clamps (17) form a circular structure.
5. A preheating structure for an aluminum extrusion press according to claim 4, characterized in that, The inner wall of one side of the clamp (17) is provided with five equally spaced gaskets (18).
6. A preheating structure for an aluminum extrusion press according to claim 1, characterized in that, The support mechanism includes a support frame (5), the top outer wall of the support frame (5) is provided with five mounting cylinders (9), the inner wall of the mounting cylinders (9) is connected to a vertical rod (10) by a thread, one end of the vertical rod (10) is provided with a horizontal plate (11), the inside of the horizontal plate (11) is a hollow structure, the inside of the horizontal plate (11) is connected to an adjusting rod (12) by a bearing, one end of the adjusting rod (12) is fixedly connected to a knob, the outer circumference of the adjusting rod (12) is connected to two moving blocks (13) by a thread, the top outer wall of the moving blocks (13) is connected to a support wheel (14) by a bearing, and the outer circumference of the adjusting rod (12) has two threads in opposite directions.
7. A preheating structure for an aluminum extrusion press according to claim 6, characterized in that, The support frame (5) is fixedly installed on one side of the outer wall of the heating furnace (1). The other side of the outer wall of the heating furnace (1) is provided with a fixing plate (4). One end of the support frame (5) is snapped into the top outer wall of the fixing plate (4). One side of the outer wall of the support frame (5) is provided with a handle (6).