A stripper assembly for an aluminum alloy extrusion apparatus

Abstract

The application provides an aluminum alloy extrusion equipment stripping assembly, which comprises a bottom plate, a rack fixedly connected to the upper end face of the bottom plate, a hydraulic cylinder fixedly connected to the middle of the top end face of the rack, an extrusion column of the hydraulic cylinder extending through the rack and being fixedly connected with a connecting plate, an upper die fixedly connected to the lower end face of the connecting plate, upper stripping devices arranged on the left and right sides of the upper end face of the connecting plate, the upper stripping devices extending through the upper die to the bottom of the upper die, support columns fixedly connected to the middle of the upper end face of the bottom plate, a lower die fixedly connected to the upper end faces of the support columns, the lower die being located directly below the upper die, and a lower stripping device arranged on the middle of the upper end face of the bottom plate and extending through the lower stripping device to the bottom of the inner cavity of the lower die. The device has a simple structure, is convenient to operate, and can effectively improve the processing efficiency and quality.

Description

Technical Field

[0001] This disclosure relates to the field of aluminum alloy extrusion die stripping technology, specifically to a stripping component for aluminum alloy extrusion equipment. Background Technology

[0002] Extrusion dies are used to press metal blanks together to obtain finished products through upper and lower dies. The stripping device is an important component of the die assembly. Especially when the upper die is deeply embedded and the lower die is shallowly embedded, after extrusion, the formed profile may sometimes stick to the die core of the upper die due to the deep embedding of the upper die and cannot be detached naturally. External force is required to remove it.

[0003] According to application number 202120548051.3, an aluminum alloy extrusion die stripping assembly is disclosed, including a lower die, a slot is provided on the upper part of the lower die, a base is provided in the slot, a swing seat is movably provided on the base, a telescopic cylinder is provided on the swing seat, and a swing drive device is connected between the bottom of the slot and the swing seat. The swing drive device includes a cylinder base, a drive cylinder and a cylinder lug. The cylinder base is provided at the bottom of the slot, the cylinder lug is provided on the side wall of the swing seat, and the drive cylinder is movably provided between the cylinder base and the cylinder lug.

[0004] Existing aluminum alloy extrusion equipment uses a stripping assembly with an upper stripping device. The extruded material is removed by swiping it back and forth, which can cause scratches on the surface of the extruded material, affecting quality. Furthermore, falling extruded material may damage the stripping device. In addition, existing stripping assemblies do not have a lower stripping device. When the extruded material cannot be removed from the lower die, the lack of a lower stripping device affects processing efficiency. Therefore, we propose a stripping assembly for aluminum alloy extrusion equipment. Summary of the Invention

[0005] In view of the aforementioned defects or deficiencies in the prior art, this application aims to provide a structure that can improve quality and efficiency.

[0006] A die stripping assembly for an aluminum alloy extrusion machine includes a base plate. A frame is fixedly connected to the upper surface of the base plate. A hydraulic cylinder is fixedly connected to the center of the top surface of the frame, and the extrusion column of the hydraulic cylinder extends through to the inner cavity of the frame and is fixedly connected to a connecting plate. An upper die is fixedly connected to the lower surface of the connecting plate. Upper stripping devices are provided on both the left and right sides of the upper surface of the connecting plate, and the ends of the upper stripping devices extend through to the bottom of the upper die. Support columns are uniformly fixedly connected to the center of the upper surface of the base plate. A lower die is fixedly connected to the upper surface of the support columns, and the lower die is located directly below the upper die. A lower stripping device is provided in the center of the upper surface of the base plate, and the upper part of the lower stripping device extends through to the bottom of the inner cavity of the lower die.

[0007] According to the technical solution provided in the embodiments of this application, the upper stripping device includes a telescopic rod, a telescopic spring, a mounting plate, a countersunk hole, a first top post, and a limiting plate. Countersunk holes are provided on both the left and right sides of the lower end face of the upper mold. The end of the countersunk hole extends through to the upper end face of the connecting plate. The lower part of the countersunk hole is fixedly connected to the limiting plate. The upper end face of the limiting plate is fixedly connected to the first top post. The end of the first top post extends through the upper part of the countersunk hole and to the upper part of the connecting plate. Telescopic rods are fixedly connected on both the left and right sides of the top end face of the inner cavity of the frame. The lower end face of the telescopic rod is fixedly connected to the mounting plate. The lower end face of the mounting plate is fixedly connected to the upper end face of the first top post. A telescopic spring is sleeved on the outside of the telescopic rod. One end of the telescopic spring is fixedly connected to the top end face of the inner cavity of the frame, and the other end of the telescopic spring is fixedly connected to the upper end face of the mounting plate.

[0008] According to the technical solution provided in the embodiments of this application, the lower section of the countersunk hole is matched with the limiting plate, and the diameter of the limiting plate is larger than the diameter of the first top column.

[0009] According to the technical solution provided in the embodiments of this application, the lower stripping device includes an opening, a second top post, a movable plate, a lead screw, a limiting post, and a drive motor. The upper surface of the base plate is fixedly connected to the left and right sides of the middle part. The upper end of the limiting post is fixedly connected to the lower end of the lower mold. The drive motor is fixedly connected to the center of the upper surface of the base plate. The upper end of the motor shaft of the drive motor is fixedly connected to the lead screw. The end of the lead screw is rotatably connected to the lower end of the lower mold. The movable plate is sleeved on the middle of the outer wall of the limiting post and the lead screw. The upper surface of the movable plate is fixedly connected to the left and right sides of the left and right sides of the upper surface of the movable plate. The lower mold cavity bottom end face is provided with an opening on the left and right sides. The end of the second top post passes through the opening and extends to the lower mold cavity bottom end face.

[0010] According to the technical solution provided in the embodiments of this application, a rubber pad is fixedly connected to the upper end face of the second top column, and the rubber pad matches the opening.

[0011] According to the technical solution provided in the embodiments of this application, through holes matching the limiting posts are opened on the left and right sides of the end face of the moving plate, and a threaded hole matching the lead screw is opened in the middle of the end face of the moving plate.

[0012] According to the technical solution provided in the embodiments of this application, the support columns are provided in four groups, and the four groups of support columns are arranged in a rectangular array. The upper end face of the four groups of support columns is fixedly connected to the four corners of the lower end face of the lower mold.

[0013] According to the technical solution provided in the embodiments of this application, a damper is fixedly connected to the upper end face of the support column.

[0014] In summary, this application discloses a stripping assembly for an aluminum alloy extrusion equipment.

[0015] Beneficial effects:

[0016] 1. The machine consists of a frame, connecting plate, upper mold, and upper unloading device. The upper mold resets, causing the telescopic rod and telescopic spring to retract. At the same time, there is a downward thrust, which drives the first push rod and the limit plate to push downward, pushing out the extruded material from the upper part and completing the unloading of the extruded material. This process is simple and fast, and does not require external force.

[0017] 2. Through the support column, lower die and lower stripping device, the drive motor drives the lead screw to rotate. The limit column limits the rotation, the lead screw drives the moving plate to move upward, the moving plate drives the second top column to push upward, the rubber pad pushes the extruded material out, and the lower extruded material is stripped, which effectively improves the processing efficiency. Attached Figure Description

[0018] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0019] Figure 1 This is a schematic diagram of the stripping assembly for the aluminum alloy extrusion equipment in this application;

[0020] Figure 2 This is a cross-sectional structural diagram of the stripping assembly for aluminum alloy extrusion equipment in this application.

[0021] In the diagram: 1. Base plate; 2. Frame; 3. Hydraulic cylinder; 4. Connecting plate; 5. Upper mold; 6. Upper stripping device; 61. Telescopic rod; 62. Telescopic spring; 63. Mounting plate; 64. Countersunk hole; 65. First ejector pin; 66. Limiting plate; 7. Support column; 8. Lower mold; 9. Lower stripping device; 91. Opening; 92. Second ejector pin; 93. Moving plate; 94. Lead screw; 95. Limiting pin; 96. Drive motor. Detailed Implementation

[0022] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0023] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0024] As mentioned in the background section, the existing aluminum alloy extrusion equipment uses an upper stripping device in the stripping assembly. The extruded material is stripped by moving it back and forth to release it from the die, which causes scratches on the surface of the extruded material, affecting the quality. Furthermore, the falling extruded material may damage the stripping device. In addition, the existing stripping assembly does not have a lower stripping device. When the extruded material cannot be stripped from the lower die, the lack of a lower stripping device affects the processing efficiency. This disclosure proposes a structure that can improve both quality and efficiency.

[0025] Example 1

[0026] Please see Figure 1 A die stripping assembly for an aluminum alloy extrusion equipment includes a base plate 1. A frame 2 is fixedly connected to the upper end face of the base plate 1. The frame 2 is welded to the upper end face of the base plate 1 to effectively ensure the stability of the frame. A hydraulic cylinder 3 is fixedly connected to the middle of the top surface of the frame 2. The extrusion column of the hydraulic cylinder 3 extends through to the inner cavity of the frame 2 and is fixedly connected to a connecting plate 4. An upper die 5 is fixedly connected to the lower end face of the connecting plate 4. The upper die 5 is a punch and the lower die 8 is a die. In order to strip the extruded material adhering to the upper die 5, upper stripping devices 6 are provided on both the left and right sides of the upper end face of the connecting plate 4. The ends of the upper stripping devices 6 extend through to the bottom of the upper die 5.

[0027] Please see Figure 1 To ensure the stability of the lower die 8, support columns 7 are uniformly fixedly connected to the middle of the upper end face of the base plate 1. The lower die 8 is fixedly connected to the upper end face of the support columns 7, and the lower die 8 is located directly below the upper die 5, ensuring that the upper die 5 and the lower die 8 are stably matched and the aluminum alloy plate is stably extruded. When the extruded material is inside the lower die 8 and cannot be extruded, a lower ejector device 9 is set in the middle of the upper end face of the base plate 1, and the upper part of the lower ejector device 9 extends through to the bottom of the inner cavity of the lower die 8, effectively ejecting the extruded material.

[0028] Please see Figure 1 To ensure the extruded material on the upper die 5 can be smoothly removed without relying on external force, an upper ejector device 6 is formed by a telescopic rod 61, a telescopic spring 62, a mounting plate 63, a countersunk hole 64, a first ejector pin 65, and a limiting plate 66. Countersunk holes 64 are provided on both the left and right sides of the lower end face of the upper die 5, and the ends of the countersunk holes 64 extend through to the upper end face of the connecting plate 4. A limiting plate 66 is fixedly connected to the lower part of the countersunk hole 64, and a first ejector pin 65 is fixedly connected to the upper end face of the limiting plate 66. The upper section of the countersunk hole 64 extends to the upper part of the connecting plate 4. Telescopic rods 61 are fixedly connected to the left and right sides of the top surface of the inner cavity of the frame 2. A mounting plate 63 is fixedly connected to the lower end of the telescopic rod 61. The lower end of the mounting plate 63 is fixedly connected to the upper end of the first top column 65. In order for the telescopic rod 61 to extend and retract normally, a telescopic spring 62 is sleeved on the outside of the telescopic rod 61. One end of the telescopic spring 62 is fixedly connected to the top surface of the inner cavity of the frame 2, and the other end of the telescopic spring 62 is fixedly connected to the upper end of the mounting plate 63.

[0029] Please see Figure 2 To ensure the stability and quality of the extruded material structure, the lower section of the countersunk hole 64 is matched with the limiting plate 66, and the diameter of the limiting plate 66 is larger than the diameter of the first top post 65, so that when the upper die 5 extrudes downward, the limiting plate 66 will not fall off or move upward. The limiting plate 66 and the lower end of the upper die 5 are extruded downward simultaneously and with the same force.

[0030] Please see Figure 2 When the extruded material is inside the lower die 8, it is inconvenient for the operator to remove it. The lower ejector device 9 is composed of an opening 91, a second top post 92, a moving plate 93, a lead screw 94, a limiting post 95, and a drive motor 96. The limiting post 95 is fixedly connected to the left and right sides of the middle of the upper end face of the base plate 1, and the upper end face of the limiting post 95 is fixedly connected to the lower end face of the lower die 8. The drive motor 96 is fixedly connected to the center of the upper end face of the base plate 1. The lead screw 94 is fixedly connected to the upper end of the motor shaft of the drive motor 96, and the end of the lead screw 94 is rotatably connected to the lower end face of the lower die 8. The moving plate 93 is sleeved in the middle of the outer wall of the limiting post 95 and the lead screw 94. The second top post 92 is fixedly connected to the left and right sides of the upper end face of the moving plate 93. The opening 91 is opened on the left and right sides of the bottom end face of the lower die 8. The end of the second top post 92 passes through the opening 91 and extends to the bottom end face of the lower die 8.

[0031] Please see Figure 2 In order to ensure that the extruded material is not damaged when the second top post 92 pushes it upward, a rubber pad is fixedly connected to the upper end face of the second top post 92, and the rubber pad matches the opening 91.

[0032] Please see Figure 2 In order to ensure the normal lifting and lowering of the movable plate 93, through holes matching the limit posts 95 are opened on the left and right sides of the end face of the movable plate 93, and threaded holes matching the lead screw 94 are opened in the middle of the end face of the movable plate 93, so that the lead screw 94 can rotate and be limited by the left and right limit posts 95, and the lead screw 94 can drive the movable plate 93 to lift and lower.

[0033] Please see Figure 1 To ensure the stability of the lower mold 8, four sets of support columns 7 are provided, and the four sets of support columns 7 are arranged in a rectangular array. The upper end face of the four sets of support columns 7 is fixedly connected to the four corners of the lower end face of the lower mold 8, which effectively ensures the stability of the lower mold 8.

[0034] Example 2

[0035] Please see Figure 1To ensure a stable and reliable fit between the lower mold 8 and the upper mold 5, a highly robust fixed connection is used on the upper surface of the support columns 7, and professional dampers are installed. These dampers possess excellent buffering and shock absorption performance. When the upper and lower molds approach each other during operation, the dampers can effectively absorb and dissipate the impact force and vibration energy generated by mechanical movement. By precisely adjusting their damping coefficients, they can flexibly adapt to different working conditions and pressure changes, thereby providing a continuous, stable, and uniform force for the fitting process of the upper and lower molds. This effectively ensures that the lower mold 8 and the upper mold 5 always maintain a stable fit, greatly improving the working accuracy and reliability of the entire mold system.

[0036] Working principle: During use, the aluminum alloy plate to be extruded is placed on the upper surface of the lower die 8. Using an external power supply, the hydraulic cylinder 3 is started. The extended end of the hydraulic cylinder 3 moves downward, driving the connecting plate 4 and the upper die 5 to move downward. The upper die 5 presses the aluminum alloy plate downward. When the upper die 5 is in contact with the lower die 8, the extruded part is formed. The upper die 5 moves upward. When the extruded material is in contact with the outside of the upper die 5, the upper die 5 moves upward. The first ejector 65 presses the telescopic rod 61 upward. The telescopic rod 61 retracts, the telescopic spring 62 retracts, and at the same time there is a downward thrust, driving the first ejector 65 and the limiting plate 66 downward. The limiting plate 66 pushes the extruded material outside the upper die 5 to complete the unloading. When the extruded material is in the inner cavity of the lower die 8 and it is inconvenient for the operator to remove it, the drive motor 96 is started. The drive motor 96 drives the lead screw 94 to rotate. It is limited by the limiting post 95. The lead screw 94 drives the moving plate 93 to move upward. The moving plate 93 drives the second ejector 92 to push upward. The rubber pad pushes the extruded material out, completing the unloading.

[0037] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in this application is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A stripper assembly for an aluminum alloy extrusion apparatus comprising a base plate (1), characterized in that: The upper end surface of the bottom plate (1) is fixedly connected with a rack (2), the top end surface of the rack (2) is fixedly connected with a hydraulic cylinder (3), the extrusion column of the hydraulic cylinder (3) extends through the inner cavity of the rack (2) and is fixedly connected with a connecting plate (4), the lower end surface of the connecting plate (4) is fixedly connected with an upper die (5), the upper end surface of the connecting plate (4) is provided with an upper stripping device (6) on the left and right sides, the tail end of the upper stripping device (6) extends through the bottom of the upper die (5), the upper end surface of the bottom plate (1) is fixedly connected with a supporting column (7) in the middle, the upper end surface of the supporting column (7) is fixedly connected with a lower die (8), the lower die (8) is located directly below the upper die (5), the lower end surface of the bottom plate (1) is provided with a lower stripping device (9) in the middle, and the upper part of the lower stripping device (9) extends through the bottom of the inner cavity of the lower die (8).

2. The stripper assembly for an aluminum alloy extrusion apparatus according to claim 1, characterized by: The upper stripping device (6) comprises a telescopic rod (61), a telescopic spring (62), a mounting plate (63), a counterbore (64), a first jacking column (65) and a limiting plate (66), the lower end surface of the upper die (5) is provided with a counterbore (64) on the left and right sides, the tail end of the counterbore (64) extends through the upper end surface of the connecting plate (4), the lower part of the counterbore (64) is fixedly connected with a limiting plate (66), the upper end surface of the limiting plate (66) is fixedly connected with a first jacking column (65), the tail end of the first jacking column (65) extends through the upper segment of the counterbore (64) and extends to the upper part of the connecting plate (4), the inner cavity of the rack (2) is fixedly connected with a telescopic rod (61) on the left and right sides of the top end surface, the lower end surface of the telescopic rod (61) is fixedly connected with a mounting plate (63), and the lower end surface of the mounting plate (63) is fixedly connected with the upper end surface of the first jacking column (65); the telescopic rod (61) is sleeved with a telescopic spring (62) outside, one end of the telescopic spring (62) is fixedly connected to the top end surface of the inner cavity of the rack (2), and the other end of the telescopic spring (62) is fixedly connected to the upper end surface of the mounting plate (63).

3. The stripper assembly for an aluminum alloy extrusion apparatus according to claim 2, characterized in that: The lower segment of the counterbore (64) is matched with the limiting plate (66), and the diameter of the limiting plate (66) is greater than that of the first jacking column (65).

4. The stripper assembly for an aluminum alloy extrusion apparatus according to claim 1, characterized in that: The lower stripping device (9) includes an opening (91), a second top column (92), a moving plate (93), a lead screw (94), a limiting column (95) and a driving motor (96), the limiting column (95) is fixedly connected to the lower end surface of the lower mold (8) on the left and right sides of the middle part of the upper end surface of the bottom plate (1), the driving motor (96) is fixedly connected to the center of the upper end surface of the bottom plate (1), the motor shaft of the driving motor (96) is fixedly connected with the lead screw (94), the lead screw (94) is rotatably connected to the lower end surface of the lower mold (8), the limiting column (95) and the lead screw (94) are sleeved with the moving plate (93) on the outer wall of the middle part, the second top column (92) is fixedly connected to the left and right sides of the upper end surface of the moving plate (93), the opening (91) is arranged on the left and right sides of the bottom end surface of the inner cavity of the lower mold (8), and the second top column (92) extends to the bottom end surface of the inner cavity of the lower mold (8) through the opening (91).

5. The stripper assembly for an aluminum alloy extrusion apparatus according to claim 4, characterized in that: The second top column (92) is fixedly connected with a rubber pad on the upper end surface, and the rubber pad is matched with the opening (91).

6. The stripper assembly for an aluminum alloy extrusion apparatus according to claim 4, characterized in that: The moving plate (93) is provided with a through hole matched with the limiting column (95) on the left and right sides of the end surface, and a threaded hole matched with the lead screw (94) is arranged in the middle part of the end surface of the moving plate (93).

7. The stripper assembly for an aluminum alloy extrusion apparatus according to claim 1, wherein: The supporting column (7) is provided with four groups, and the four groups of supporting columns (7) are arranged in a rectangular array, and the upper end surfaces of the four groups of supporting columns (7) are fixedly connected with the lower end surface of the lower mold (8).

8. The stripper assembly for an aluminum alloy extrusion apparatus of claim 1 wherein: The upper end surface of the supporting column (7) is fixedly connected with a damper.

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