A hot shearing apparatus for cutting aluminium bars

Abstract

The application relates to the technical field of aluminum bar processing, and discloses a hot shearing equipment for aluminum bar cutting, which comprises a bottom plate, the top of the bottom plate is fixedly connected with a hot cutting mechanism, the annular blade is divided into eight independent angle regions through the hot cutting mechanism, the blade edge of each angle region is independently recorded with the cumulative shearing frequency and the shearing pressure parameter borne by the angle region at a central control end, when the cumulative use frequency of any angle region reaches a preset threshold value or the shearing pressure exceeds a normal range, the system marks the blade edge of the angle region as unusable and actively avoids the angle in subsequent shearing, so that the blade edge which has been excessively worn is prevented from continuing to participate in cutting, the management and life assessment of the blade edges of all the angles are facilitated, the blade edge in a good state is used for shearing every time, the flatness and size precision of the aluminum bar cutting are ensured, and the cutting quality is prevented from being reduced due to the wear of the blade edge.

Description

Technical Field

[0001] This invention relates to the field of aluminum rod processing technology, specifically to a hot shearing device for cutting aluminum rods. Background Technology

[0002] Hot shearing equipment is a key supporting equipment in aluminum profile extrusion production lines. It is used to cut long aluminum bars heated to a plastic state in a heating furnace into short bar segments that meet the requirements of the extruder. The equipment mainly consists of a feeding rack, a heating furnace, a hot shearing machine body, and an electrical control system. It features high shearing efficiency and accurate length cutting.

[0003] Patent application CN201921135406.5 discloses a hot shearing device for cutting aluminum bars. By incorporating a fixing plate, mounting block unit, gun body fixing unit, and screw-in unit within the hot shearing furnace, the gas-fired nozzle effectively heats the aluminum bars. It offers advantages such as flexible and adjustable nozzle position, high stability of the mounting structure, uniform heating of multiple aluminum bars, and excellent overall hot shearing performance.

[0004] Existing equipment typically uses a fixed structure, where the cutting force is concentrated in the same area at the center of the blade when cutting aluminum bars. The center of the blade always bears the greatest shear load, while the areas on either side experience minimal or no force, or even no involvement in the actual cutting. After prolonged use, the center of the blade wears down rapidly to the point of failure, while the ends remain almost new. This results in a severely underutilized cutting edge, wasting material, increasing production costs, and reducing the continuous operating efficiency of the production line. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a hot shearing device for cutting aluminum bars, thereby solving the problems mentioned in the background section.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a hot shearing device for cutting aluminum rods, comprising a base plate, a first placement frame fixedly connected to the top of the base plate, a reinforcing plate fixedly connected to the top of the first placement frame, a second placement frame fixedly connected to the top of the base plate, a hot cutting mechanism fixedly connected to the top of the base plate, and an insulation pipe fixedly connected to the top of the second placement frame.

[0007] The heat-cutting mechanism includes:

[0008] A tripod is fixedly connected to a base plate at its bottom. A connecting frame is fixedly connected to the front of the tripod, and a track is fixedly connected to the inner side of the connecting frame. A hydraulic rod is fixedly connected to the top of the connecting frame, and a movable component is movably connected to the outer wall of the track. The track is used to limit the range of motion of the movable component. By setting a hot cutting mechanism, the annular blade is divided into eight independent angular regions. The cumulative number of cuts and the shearing pressure parameters of the blade edge in each angular region are independently recorded at the central control end. When the cumulative number of uses in any angular region reaches a preset threshold or the shearing pressure exceeds the normal range, the system marks the blade edge in that angular region as unusable and actively avoids that angle in subsequent cuts. This avoids using an excessively worn blade edge to continue cutting, which is beneficial for the management and life assessment of the blade edges in each angular region. It ensures that a blade edge in good condition is used for each cut, thereby ensuring the flatness and dimensional accuracy of the aluminum rod cutting and avoiding the decline in cutting quality due to blade edge wear.

[0009] According to the above technical solution, a heating furnace is fixedly connected to the top of the base plate, and a heat-conducting pipe is fixedly connected to the front side of the heating furnace. The outer wall of the end of the heat-conducting pipe away from the heating furnace is fixedly connected to a heat-insulating pipe. The heat-conducting pipe transfers heat from inside the heating furnace to the heat-insulating pipe. By setting the heat-conducting pipe, some of the heat inside the heating furnace is diverted to the heat-insulating pipe, so that the heated aluminum rod is kept in the heat-insulating pipe during the conveying process. This avoids the aluminum rod from experiencing a sudden drop in temperature and a rebound in hardness due to excessive heat loss after being output from the heating furnace. It ensures that the aluminum rod remains in a suitable plastic state when it enters the hot cutting mechanism for shearing, which helps to reduce shearing resistance, reduce impact wear of the ring blade, and reduce the frequency of tool replacement and maintenance costs.

[0010] According to the above technical solution, the movable component includes a first slider, the inner wall of which is movably connected to a track. A housing is fixedly connected to the side of the first slider away from the track, and a first connecting plate is fixedly connected to the side of the housing away from the first slider. The top of the first connecting plate is fixedly connected to a hydraulic rod, wherein the hydraulic rod is used to control the height of the movable component. By setting the movable component and using a ring-shaped blade, the cutting component is rotated and switched by a motor during cutting, so that the cutting edges of each part of the ring-shaped blade in the circumference take turns to participate in the shearing work. This avoids the underutilization of the cutting edge due to long-term concentrated force in the central area of ​​the traditional fixed blade, which is conducive to achieving balanced wear of the ring-shaped blade's entire circumference, greatly extending the overall service life of the tool, and reducing the tool replacement frequency and maintenance costs.

[0011] According to the above technical solution, a motor is fixedly connected to the outer wall of the housing, and a first gear is rotatably connected to the inner wall of the housing through a bearing. The output end of the motor is fixedly connected to the first gear, wherein the motor is used to drive the first gear to rotate.

[0012] According to the above technical solution, an arc-shaped slider is fixedly connected to the inner wall of the outer shell, a sliding groove is provided on the outer wall of the outer shell, a fixing component is fixedly connected to the outer wall of the outer shell, and a cutting component is rotatably connected to the inner wall of the outer shell through a bearing, wherein the fixing component is used to lock the cutting component.

[0013] According to the above technical solution, the fixing component includes a connecting block, the outer wall of which is fixedly connected to the outer shell, a push rod is fixedly connected to the inner wall of the outer shell, a second connecting plate is fixedly connected to the movable end of the push rod, a second slider is fixedly connected to the end of the second connecting plate away from the push rod, the outer wall of the second slider is movably connected to a slide groove, and an embedding block is fixedly connected to the side of the second slider away from the second connecting plate. The push rod is used to control the position of the embedding block. By setting the fixing component, after the cutting component rotates to the target angle, the cutting component is locked relative to the outer shell, avoiding accidental rotation or displacement of the annular blade at the moment of cutting. This helps to ensure the positioning rigidity and angular stability of the annular blade during the cutting process, preventing the risk of cutting deformation, dimensional deviation or blade breakage caused by blade offset, and improving the safety and reliability of equipment operation.

[0014] According to the above technical solution, the cutting assembly includes a connecting ring, an annular groove is provided on the outer side of the connecting ring, the inner wall of the annular groove is rotatably connected to the arc-shaped slider, an annular blade is fixedly connected to the inner wall of the connecting ring, and a second gear is fixedly connected to the outer wall of the connecting ring. The second gear meshes with the first gear, wherein the motor drives the cutting assembly to rotate through the first gear.

[0015] According to the above technical solution, the inner wall of the annular groove is provided with a locking groove, and the inner wall of the locking groove is movably connected to the embedding block. When the embedding block is embedded in the locking groove, it is used to lock the position of the cutting component.

[0016] Compared with the prior art, the present invention provides a hot shearing device for cutting aluminum bars, which has the following advantages:

[0017] 1. This invention, by setting up a movable component and adopting a ring-shaped blade, allows the cutting component to rotate and switch during cutting via a motor. This enables the cutting edges of different parts of the ring-shaped blade to participate in the shearing work in turn, avoiding the underutilization of the cutting edge caused by long-term concentrated force in the central area of ​​the traditional fixed blade. This helps to achieve balanced wear of the ring-shaped blade's entire circumference, significantly extending the overall service life of the tool and reducing the frequency of tool replacement and maintenance costs.

[0018] 2. This invention, by setting up a hot-cutting mechanism, divides the annular blade into eight independent angular regions. The cumulative number of cuts and the shearing pressure parameters borne by the blade edge of each angular region are independently recorded at the central control end. When the cumulative number of uses of any angular region reaches a preset threshold or the shearing pressure exceeds the normal range, the system marks the blade edge of that angular region as unusable and actively avoids that angle in subsequent cuts. This avoids using an excessively worn blade edge to continue cutting, which is beneficial for the management and life assessment of the blade edges at each angle. It ensures that a blade edge in good condition is used for each cut, thereby guaranteeing the flatness and dimensional accuracy of the aluminum rod cut and avoiding the decline in cutting quality caused by blade edge wear.

[0019] 3. By setting a fixing component, the present invention locks the cutting component relative to the outer shell after the cutting component rotates to the target angle, which prevents the ring blade from rotating or displacing unexpectedly at the moment of cutting. This helps to ensure the positioning rigidity and angular stability of the ring blade during the cutting process, prevents the risk of cutting deformation, dimensional deviation or blade breakage caused by blade offset, and improves the safety and reliability of equipment operation.

[0020] 4. By setting up a heat-conducting pipe, this invention guides part of the heat inside the heating furnace to the insulation pipe, so that the heated long aluminum rod is kept in the insulation pipe during the transportation process. This avoids the aluminum rod from experiencing a sudden drop in temperature and a rebound in hardness due to excessive heat loss after being output from the heating furnace. It ensures that the aluminum rod remains in a suitable plastic state when it enters the hot cutting mechanism for shearing. This helps to reduce shearing resistance, reduce the impact wear of the ring blade, and reduce the frequency of tool replacement and maintenance costs. Attached Figure Description

[0021] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the heat-cutting mechanism of the present invention. Figure 1 ;

[0024] Figure 3 This is a schematic diagram of the heat-cutting mechanism of the present invention. Figure 2 ;

[0025] Figure 4 This is a schematic diagram of the active components of the present invention;

[0026] Figure 5 Cross-sectional view of the active component of the present invention Figure 1 ;

[0027] Figure 6Cross-sectional view of the active component of the present invention Figure 2 ;

[0028] Figure 7 For the present invention Figure 6 Enlarged view of A in the middle;

[0029] Figure 8 This is a schematic diagram of the fixing component of the present invention;

[0030] Figure 9 This is a schematic diagram of the cutting component of the present invention.

[0031] In the diagram: 1. Base plate; 101. First placement frame; 102. Second placement frame; 103. Insulation pipe; 104. Reinforcing plate; 105. Heating furnace; 106. Heat conduction pipe; 2. Hot cutting mechanism; 201. Tripod; 202. Connecting frame; 203. Track; 204. Hydraulic rod; 21. Movable component; 211. First slider; 212. Outer shell; 213. First connecting plate; 214. Motor; 215. First gear; 216. Slide groove; 217. Arc slider; 22. Fixing component; 221. Connecting block; 222. Push rod; 223. Second connecting plate; 224. Second slider; 225. Embedded block; 23. Cutting component; 231. Connecting ring; 232. Annular groove; 233. Locking groove; 234. Annular blade; 235. Second gear. Detailed Implementation

[0032] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0033] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the invention, and should not be construed as limiting the invention.

[0034] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0035] Example 1: See Figures 1-3The present invention provides a technical solution: a hot shearing device for cutting aluminum rods, comprising a base plate 1, a first placement frame 101 fixedly connected to the top of the base plate 1, a reinforcing plate 104 fixedly connected to the top of the first placement frame 101, a second placement frame 102 fixedly connected to the top of the base plate 1, a hot cutting mechanism 2 fixedly connected to the top of the base plate 1, and a heat insulation pipe 103 fixedly connected to the top of the second placement frame 102; a heating furnace 105 fixedly connected to the top of the base plate 1, a heat conduction pipe 106 fixedly connected to the front side of the heating furnace 105, the outer wall of the end of the heat conduction pipe 106 away from the heating furnace 105 being fixedly connected to the heat insulation pipe 103, wherein the heat conduction pipe 106 heats the interior of the heating furnace 105... Heat is transferred to the insulation pipe 103. When aluminum needs to be processed, the long aluminum rod is first fully heated in the heating furnace 105 to reach a suitable plastic state. After heating, the aluminum rod is sent into the insulation pipe 103 by the conveying mechanism. The high temperature accumulated inside the furnace chamber of the heating furnace 105 flows along the inner wall of the heat conduction pipe 106 to the inner cavity of the insulation pipe 103. The heat radiation continuously compensates the long aluminum rod passing through, so that the aluminum rod maintains a temperature level close to that inside the furnace during the conveying process from the output of the heating furnace 105 to the entry into the hot cutting mechanism 2. This avoids the aluminum rod from rapidly cooling down due to exposure to the ambient air, and ensures that the aluminum material is still in a suitable plastic processing state during shearing.

[0036] The hot cutting mechanism 2 includes: a tripod 201, the bottom of which is fixedly connected to the base plate 1; a connecting frame 202 is fixedly connected to the front side of the tripod 201; a track 203 is fixedly connected to the inner side of the connecting frame 202; a hydraulic rod 204 is fixedly connected to the top of the connecting frame 202; and a movable component 21 is movably connected to the outer wall of the track 203. The track 203 is used to limit the range of motion of the movable component 21. When hot cutting is required, the hydraulic rod 204 is activated, driving the movable component 21 to move vertically downward along the track 203 to complete the hot cutting of the aluminum rod and the shearing. After the shearing is completed, the hydraulic rod 204 reverses and drives the movable component 21 to reset upward, waiting for the next action.

[0037] Example 2: Please refer to Figures 4-9Based on Embodiment 1, the present invention provides a technical solution: the movable component 21 includes a first slider 211, the inner wall of the first slider 211 is movably connected to the track 203, a housing 212 is fixedly connected to the side of the first slider 211 away from the track 203, a first connecting plate 213 is fixedly connected to the side of the housing 212 away from the first slider 211, the top of the first connecting plate 213 is fixedly connected to a hydraulic rod 204, wherein the hydraulic rod 204 is used to control the height of the movable component 21, a motor 214 is fixedly connected to the outer wall of the housing 212, a first gear 215 is rotatably connected to the inner wall of the housing 212 through a bearing, the output end of the motor 214 is fixedly connected to the first gear 215, wherein the motor 214 is used to drive the first gear 215 to rotate, an arc-shaped slider 217 is fixedly connected to the inner wall of the housing 212, and a groove 216 is formed on the outer wall of the housing 212. A fixing component 22 is fixedly connected to the outer wall of the outer casing 212, and a cutting component 23 is rotatably connected to the inner wall of the outer casing 212 via a bearing. The fixing component 22 is used to lock the cutting component 23. When it is necessary to switch the working angle of the annular blade 234, the push rod 222 drives the second connecting plate 223 to drive the second slider 224, causing the embedded block 225 to exit from the locking groove 233 and releasing the lock on the cutting component 23. Then the motor 214 starts and drives the first gear 215 to rotate. The first gear 215 drives the second gear 235 to rotate through meshing, thereby driving the entire cutting component 23 to rotate relative to the outer casing 212. When the cutting component 23 rotates to the set angle, the motor 214 stops, and the push rod 222 drives the embedded block 225 to extend and embed into the locking groove 233 in the opposite direction, relocking the cutting component 23 and completing one working angle switch of the annular blade 234.

[0038] The fixing component 22 includes a connecting block 221. The outer wall of the connecting block 221 is fixedly connected to the outer shell 212. A push rod 222 is fixedly connected to the inner wall of the outer shell 212. A second connecting plate 223 is fixedly connected to the movable end of the push rod 222. A second slider 224 is fixedly connected to the end of the second connecting plate 223 away from the push rod 222. The outer wall of the second slider 224 is movably connected to the slide groove 216. An embedded block 225 is fixedly connected to the side of the second slider 224 away from the second connecting plate 223. The push rod 222 is used to control the position of the embedded block 225.

[0039] The cutting assembly 23 includes a connecting ring 231. An annular groove 232 is formed on the outer side of the connecting ring 231. The inner wall of the annular groove 232 is rotatably connected to the arc-shaped slider 217. An annular blade 234 is fixedly connected to the inner wall of the connecting ring 231. A second gear 235 is fixedly connected to the outer wall of the connecting ring 231. The second gear 235 meshes with the first gear 215. The motor 214 drives the cutting assembly 23 to rotate through the first gear 215. A locking groove 233 is formed on the inner wall of the annular groove 232. The inner wall of the locking groove 233 is movably connected to the embedding block 225. When the embedding block 225 is embedded in the locking groove 233, it is used to lock the position of the cutting assembly 23.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0041] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A hot shearing device for cutting aluminum rods, comprising a base plate (1), a first placement frame (101) fixedly connected to the top of the base plate (1), a reinforcing plate (104) fixedly connected to the top of the first placement frame (101), and a second placement frame (102) fixedly connected to the top of the base plate (1), characterized in that, A heat-cutting mechanism (2) is fixedly connected to the top of the base plate (1), and an insulation pipe (103) is fixedly connected to the top of the second placement rack (102). The heat-cutting mechanism (2) includes: Tripod (201), the bottom of which is fixedly connected to the base plate (1), a connecting frame (202) is fixedly connected to the front side of the tripod (201), a track (203) is fixedly connected to the inner side of the connecting frame (202), a hydraulic rod (204) is fixedly connected to the top of the connecting frame (202), and a movable component (21) is movably connected to the outer wall of the track (203), wherein the track (203) is used to limit the range of motion of the movable component (21).

2. The hot shearing device for cutting aluminum rods according to claim 1, characterized in that: A heating furnace (105) is fixedly connected to the top of the base plate (1). A heat-conducting pipe (106) is fixedly connected to the front side of the heating furnace (105). The outer wall of the end of the heat-conducting pipe (106) away from the heating furnace (105) is fixedly connected to the heat-insulating pipe (103). The heat-conducting pipe (106) transfers heat from the inside of the heating furnace (105) to the heat-insulating pipe (103).

3. The hot shearing device for cutting aluminum rods according to claim 2, characterized in that: The movable component (21) includes a first slider (211), the inner wall of which is movably connected to the track (203). A housing (212) is fixedly connected to the side of the first slider (211) away from the track (203). A first connecting plate (213) is fixedly connected to the side of the housing (212) away from the first slider (211). The top of the first connecting plate (213) is fixedly connected to a hydraulic rod (204), wherein the hydraulic rod (204) is used to control the height of the movable component (21).

4. A hot shearing device for cutting aluminum rods according to claim 3, characterized in that: A motor (214) is fixedly connected to the outer wall of the housing (212), and a first gear (215) is rotatably connected to the inner wall of the housing (212) via a bearing. The output end of the motor (214) is fixedly connected to the first gear (215), wherein the motor (214) is used to drive the first gear (215) to rotate.

5. A hot shearing device for cutting aluminum rods according to claim 4, characterized in that: The inner wall of the outer shell (212) is fixedly connected to an arc-shaped slider (217), the outer wall of the outer shell (212) is provided with a sliding groove (216), the outer wall of the outer shell (212) is fixedly connected to a fixing component (22), and the inner wall of the outer shell (212) is rotatably connected to a cutting component (23) through a bearing, wherein the fixing component (22) is used to lock the cutting component (23).

6. A hot shearing device for cutting aluminum rods according to claim 5, characterized in that: The fixing component (22) includes a connecting block (221), the outer wall of the connecting block (221) is fixedly connected to the outer shell (212), the inner wall of the outer shell (212) is fixedly connected to a push rod (222), the movable end of the push rod (222) is fixedly connected to a second connecting plate (223), the end of the second connecting plate (223) away from the push rod (222) is fixedly connected to a second slider (224), the outer wall of the second slider (224) is movably connected to a slide groove (216), and the side of the second slider (224) away from the second connecting plate (223) is fixedly connected to an embedded block (225), wherein the push rod (222) is used to control the position of the embedded block (225).

7. A hot shearing device for cutting aluminum rods according to claim 6, characterized in that: The cutting assembly (23) includes a connecting ring (231), an annular groove (232) is provided on the outer side of the connecting ring (231), the inner wall of the annular groove (232) is rotatably connected to the arc-shaped slider (217), an annular blade (234) is fixedly connected to the inner wall of the connecting ring (231), and a second gear (235) is fixedly connected to the outer wall of the connecting ring (231). The second gear (235) meshes with the first gear (215), wherein the motor (214) drives the cutting assembly (23) to rotate through the first gear (215).

8. A hot shearing device for cutting aluminum rods according to claim 7, characterized in that: The inner wall of the annular groove (232) is provided with a locking groove (233). The inner wall of the locking groove (233) is movably connected to the embedding block (225). When the embedding block (225) is embedded in the locking groove (233), it is used to lock the position of the cutting component (23).

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