Aluminum profile extrusion press

Abstract

An aluminum profile extruder relates to aluminum profile extrusion equipment. The present invention aims to solve the problem that between extruding two sections of aluminum bars, the hydraulic push rod needs to retreat and the feeding mechanism needs to load the material, which requires a long pause in the middle. On the one hand, this reduces production efficiency, and on the other hand, the long pause also affects the quality of the extruded aluminum profile. After the two extrusion clamping mechanisms of the present invention have successively clamped the aluminum bars, they move side by side toward the extrusion forming die. After the front extrusion clamping mechanism pushes the clamped aluminum bar into the extrusion forming die, it releases the aluminum bar and retreats to the loading position. The rear extrusion clamping mechanism continues to move until the loading position is vacated. The loading positioning mechanism supports the next section of aluminum bar to the loading position and is clamped by the front extrusion clamping mechanism. After the extrusion clamping mechanism has clamped the aluminum bar, the two extrusion clamping mechanisms move forward again. The two extrusion clamping mechanisms alternately clamp the aluminum bar and feed the material continuously to shorten the interval time between loading the front and rear sections of the aluminum bar. It is used for extruding aluminum profiles.

Description

Technical Field

[0001] The invention relates to aluminum profile extrusion equipment, in particular to an aluminum profile extruder. Background Art

[0002] Aluminum extrusion machines use hydraulic push rods to push hot aluminum bars through a die to form them. After a section of aluminum bar is extruded, the hydraulic push rods retract, allowing the loading mechanism to load the bar, and then the hydraulic push rods advance to extrude a new section of aluminum bar. Between extruding two sections of aluminum bar, the hydraulic push rods retract and the loading mechanism reloads the bar, requiring a long pause. This not only reduces production efficiency, but also affects the quality of the extruded aluminum profile. Summary of the Invention

[0003] In view of this, the present invention provides an aluminum profile extruder, which utilizes two extrusion clamping mechanisms to alternately clamp aluminum bars and feed them continuously, so as to shorten the interval time between the front and rear sections of aluminum bar feeding.

[0004] To achieve the above objectives, the present invention provides the following technical solutions.

[0005] 1. Aluminum profile extrusion press, including:

[0006] Extrusion die, used for extrusion molding of aluminum bars;

[0007] Also includes:

[0008] The loading position is set behind the extrusion die;

[0009] Loading positioning mechanism, used to support the aluminum bar to the loading position;

[0010] The extrusion clamping mechanism is used to clamp the aluminum rod at the feeding position and provide the thrust for extrusion forming of the aluminum rod. The aluminum rod is longer than the length of the extrusion clamping mechanism so that the front end of the clamped aluminum rod leaks out. There are two extrusion clamping mechanisms. After the two extrusion clamping mechanisms have clamped the aluminum rod in succession, they move side by side toward the extrusion forming die. After the front extrusion clamping mechanism pushes the clamped aluminum rod into the extrusion forming die, it releases the aluminum rod and retreats to the feeding position. The rear extrusion clamping mechanism continues to move until the feeding position is vacated. The feeding positioning mechanism supports the next section of aluminum rod to the feeding position and is clamped by the front extrusion clamping mechanism. After the front extrusion clamping mechanism clamps the aluminum rod, the two extrusion clamping mechanisms move forward side by side again. The two extrusion clamping mechanisms alternately clamp the aluminum rod and feed continuously to shorten the interval time between the feeding of the front and rear sections of aluminum rods.

[0011] After the front extrusion clamping mechanism clamps the aluminum rod, it gradually gives up the feeding position of the aluminum rod during the movement toward the side of the extrusion forming die. The feeding positioning mechanism can feed in advance. When the extrusion clamping mechanism completely gives up the feeding position, the feeding positioning mechanism can immediately move the aluminum rod to the feeding position and be clamped by the next extrusion clamping mechanism. The two extrusion clamping mechanisms move side by side back and forth to feed. When the front extrusion clamping mechanism pushes the clamped aluminum rod into the extrusion forming die, the aluminum rod is released and returns to the feeding position to clamp the next section of aluminum rod. The two extrusion clamping mechanisms are used to alternately clamp the aluminum rod and continuously push the front and rear sections of the aluminum rods into the extrusion forming die for extrusion forming, so as to shorten the feeding time of the front and rear sections of the aluminum rods and the interval time of being pushed into the extrusion forming die, thereby improving production efficiency and improving the quality of extruded aluminum profiles.

[0012] 2. Based on Technical Solution 1, the extrusion clamping mechanism includes:

[0013] The extrusion clamp is equipped with two extrusion clamps and two push plates. The two extrusion clamps are symmetrically arranged and can be opened or closed to clamp or release the aluminum rod. The push plate is arranged behind the extrusion clamps to contact and push the clamped aluminum rod forward after the two extrusion clamps have clamped the aluminum rod.

[0014] A hydraulic push rod is connected to and moves the extrusion clamp to provide the aluminum rod with extrusion-forming thrust through two push plates when the two extrusion clamps clamp the aluminum rod;

[0015] The loading and positioning mechanism includes:

[0016] The positioning push rod is set behind the loading position to prevent the aluminum rod from falling when it moves with the extrusion clamping mechanism in front;

[0017] The upper support plate can be driven to move and is used to support the aluminum bars to the loading position;

[0018] When loading the material through the loading and positioning mechanism, the upper support plate supports the aluminum rod to the loading position, the positioning push rod moves forward and places the aluminum rod on the push plate of the front extrusion clamping mechanism, the aluminum rod moves with the front extrusion clamping mechanism, and the upper support plate retreats to facilitate the rear extrusion clamping mechanism to clamp the aluminum rod.

[0019] 3. Based on Technical Solution 2, each extrusion clamp includes:

[0020] The U-shaped support frame has a plurality of strip openings on both side walls from front to back, the length direction of each strip opening being the same as the opening and closing direction of the extrusion clamp, the strip openings on both side walls corresponding to each other, and two corresponding strip openings forming a group;

[0021] The clips are provided with a plurality of clips, each clip corresponding to a group of strip openings, each clip being installed in the corresponding group of strip openings and being movable along the length direction of the strip openings;

[0022] There are multiple electric push rods, each of which corresponds to a clip for locking the position of the clip;

[0023] There are multiple tension springs, each corresponding to a clip, one end of the tension spring is connected to the clip, and the other end is connected to the U-shaped support frame. The tension spring is stretched to pull the clip backward when the electric push rod unlocks the clip;

[0024] When the extrusion clamping mechanism pushes the clamped aluminum rod into the extrusion forming die, the electric push rods arranged from front to back unlock the clamps in sequence, and the tension springs pull the clamps backward, so that the clamps arranged from front to back gradually open and avoid the extrusion forming die.

[0025] 4. Based on Technical Solution 3, the extrusion fixture also includes a locking mechanism for locking the two U-shaped support frames. After the extrusion fixture clamps the aluminum rod, the locking mechanism connects the two U-shaped support frames and keeps their positions relatively stationary.

[0026] 5. Based on Technical Solution 2, it also includes a fixture cleaning mechanism, which includes:

[0027] The mounting sleeve is sleeved on the rear end of the extrusion forming die, and the mounting sleeve can rotate around the extrusion forming die and can also move along the axis of the extrusion forming die;

[0028] There are two cleaning brushes, which are symmetrically arranged on both sides of the mounting sleeve and correspond to an extrusion clamp respectively, for cleaning the inner wall of the corresponding extrusion clamp;

[0029] The rotating sleeve is sleeved on the front end of the extrusion die and can rotate;

[0030] There are two cleaning cylinders, which are symmetrically installed on both sides of the rotating sleeve. The two cleaning cylinders correspond to the two cleaning brushes one by one. Each cleaning cylinder is provided with a cleaning push rod, which is connected to the mounting sleeve and can drive the mounting sleeve to move along the axis of the extrusion die.

[0031] The rotating sleeve drives the mounting sleeve to rotate into place via the cleaning oil cylinder. After the extrusion clamping mechanism pushes the clamped aluminum rod into the extrusion forming die, the extrusion clamping mechanism is sleeved on the outside of the mounting sleeve. The inner walls of the two extrusion clamping blocks of the extrusion clamping mechanism contact the cleaning brush. The cleaning brush moves back and forth through the mounting sleeve along with the cleaning push rod of the cleaning oil cylinder to clean the aluminum slag adhered to the inner wall of the extrusion clamping block.

[0032] 6. Based on Technical Solution 2, a protrusion is provided on the inner wall of the extrusion clamp to increase the clamping force and friction force of the extrusion clamp on the aluminum rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the three-dimensional structure of the aluminum profile extruder of the present invention.

[0034] Figure 2 This is a schematic diagram of the upper support plate supporting the aluminum bar to the loading position.

[0035] Figure 3 Schematic diagram of the state in which the other extrusion clamping mechanism is about to clamp the aluminum rod when the positioning push rod places the aluminum rod on the front extrusion clamping mechanism.

[0036] Figure 4 This is a schematic diagram of the state when two extrusion clamping mechanisms successively clamp two sections of aluminum bars and move synchronously.

[0037] Figure 5 It is a structural diagram of the extrusion clamping mechanism.

[0038] Figure 6 This is a schematic diagram of the state where one of the extrusion clamping mechanisms pushes the clamped aluminum rod into the extrusion molding die and then opens.

[0039] Figure 7 for Figure 6 A partial enlarged view of point A in the middle.

[0040] Reference numerals include:

[0041] Frame 1, front mounting frame 11, rear mounting frame 12, upper support frame 13, lower support frame 14, left support frame 15, right support frame 16;

[0042] Extrusion molding die 2;

[0043] Feeding positioning mechanism 3, positioning push rod 31, upper supporting plate 32, upper oil cylinder 33;

[0044] Extrusion clamping mechanism 4, extrusion clamp 41, extrusion clamp 411, clamp mounting plate 4111, U-shaped support frame 4112, strip opening 41121, clamping piece 4113, protrusion 41131, electric push rod 4114, tension spring 4115, guide rod 4116, push plate 412; clamp driving cylinder 413; hydraulic push rod 42;

[0045] Clip reset block 5;

[0046] Locking mechanism 6;

[0047] Fixture cleaning mechanism 7, mounting sleeve 71, cleaning brush 72, rotating sleeve 73, cleaning cylinder 74, gear drive pair 75, baffle 76, exhaust pipe 761;

[0048] Loading position 8. DETAILED DESCRIPTION

[0049] The present invention is described in detail below with reference to specific embodiments.

[0050] See also Figure 1 、 Figure 2 and Figure 6 The aluminum profile extruder of this embodiment includes a frame 1, an extrusion forming die 2, a loading and positioning mechanism 3, and an extrusion clamping mechanism 4. The frame 1 includes a front mounting frame 11, a rear mounting frame 12, an upper support frame 13, a lower support frame 14, a left support frame 15, and a right support frame 16. The front mounting frame 11 and the rear mounting frame 12 are arranged relatively spaced apart from each other in front and back. The upper support frame 13 and the lower support frame 14 are arranged relatively between the front mounting frame 11 and the rear mounting frame 12 in the vertical direction. The left support frame 15 and the right support frame 16 are arranged relatively between the front mounting frame 11 and the rear mounting frame 12 in the horizontal direction. Figure 2 As shown, the extrusion die 2 is mounted on the front mounting frame 11 and is used to extrude the aluminum rod to form the aluminum profile. The loading and positioning mechanism 3 is arranged obliquely on one side of the right support frame 16 and is used to support the aluminum rod to the loading position 8 behind the extrusion die 2. The extrusion clamping mechanism 4 is used to clamp the aluminum rod at the loading position 8 and provide the thrust for the extrusion molding of the aluminum rod. The aluminum rod is longer than the length of the extrusion clamping mechanism 4 so that the front end of the clamped aluminum rod can be leaked; Figure 1 and Figure 2 As shown, there are two extrusion clamping mechanisms 4, which are respectively configured as a first extrusion clamping mechanism and a second extrusion clamping mechanism. The opening and closing directions of the first extrusion clamping mechanism and the second extrusion clamping mechanism are perpendicular to each other, that is, the two extrusion clamping blocks 411 of the first extrusion clamping mechanism are respectively slidably mounted on the left support frame 15 and the right support frame 16, and the two extrusion clamping blocks 411 open and close left and right to clamp or release the aluminum rod, and the two extrusion clamping blocks 411 of the second extrusion clamping mechanism are respectively slidably mounted on the upper support frame 13 and the lower support frame 14, and the two extrusion clamping blocks 411 open and close up and down to clamp or release the aluminum rod. During use, the loading positioning mechanism 3 first supports a section of aluminum rod to the loading position 8 behind the extrusion forming mold 2, and the first extrusion clamping mechanism clamps the section of aluminum rod and then moves toward the side of the extrusion forming mold 2. At the same time, the loading positioning mechanism 3 supports the next section of aluminum rod to move to the loading position 8. When the first extrusion clamping mechanism moves to the position between the aluminum rod loading position 8 and the extrusion forming mold 2, the aluminum rod loading position 8 has been completely vacated, as shown in FIG. Figure 3 As shown, the loading positioning mechanism 3 supports the aluminum bar and moves to the loading position 8, and the second extrusion clamping mechanism clamps the aluminum bar. After the second extrusion clamping mechanism completes clamping the aluminum bar, as shown in FIG. Figure 4As shown, the second extrusion clamping mechanism and the first extrusion clamping mechanism are arranged side by side front and back, and move toward the side of the extrusion forming die 2 at the same time. After the first extrusion clamping mechanism pushes the clamped aluminum rod into the extrusion forming die 2, it releases the aluminum rod and retreats to the loading position 8 behind the second extrusion clamping mechanism. When the second extrusion clamping mechanism moves and makes way for the loading position 8, the loading positioning mechanism 3 supports the aluminum rod to move to the loading position 8 again. After the first extrusion clamping mechanism clamps the section of aluminum rod, it moves side by side front and back with the second extrusion clamping mechanism. The two extrusion clamping mechanisms 4 alternately clamp the aluminum rods and continuously push the front and rear sections of the aluminum rods into the extrusion forming die 2 for extrusion forming, so as to shorten the loading time of the front and rear sections of the aluminum rods and the interval time of being pushed into the extrusion forming die 2.

[0051] Since the extrusion clamping mechanism 4 clamps the aluminum rod and provides thrust for extrusion molding, the extrusion push rod is no longer behind the aluminum rod. During the movement of the extrusion clamping mechanism 4 toward the extrusion molding die 2, the loading position 8 of the aluminum rod is gradually released, and the loading positioning mechanism 3 can load the rod early. When the extrusion clamping mechanism 4 completely releases the loading position 8, the loading positioning mechanism 3 can immediately move the aluminum rod to the loading position 8, and the next extrusion clamping mechanism 4 clamps and feeds the rod, which shortens the interval time for feeding the aluminum rod and realizes continuous feeding, thereby improving production efficiency and the quality of the extruded aluminum profile. In addition, the aluminum rod is longer than the length of the extrusion clamping mechanism 4 in order to allow the front end of the clamped aluminum rod to leak out, so that the aluminum rod can be pushed into the extrusion molding die 2. It should also be noted that, if Figure 2 and Figure 3 As shown, the opening and closing directions of the two extrusion clamping mechanisms 4 are perpendicular to each other, so that when one extrusion clamping mechanism 4 retreats from the extrusion forming die 2 to the loading position 8, the two extrusion clamping blocks 411 of the extrusion clamping mechanism 4 open and avoid the other extrusion clamping mechanism 4, so as to avoid interference during the alternating movement of the two extrusion clamping mechanisms 4.

[0052] like Figure 2-Figure 5 As shown, the extrusion clamping mechanism 4 of this embodiment includes an extrusion clamp 41 and a hydraulic push rod 42. The extrusion clamp 41 is provided with two extrusion clamps 411, two push plates 412, two clamp driving cylinders 413 and two push plate driving cylinders (not shown in the figure). The two extrusion clamps 411 are symmetrically arranged and driven by a clamp driving cylinder 413 respectively to realize the opening or closing of the two extrusion clamps 411 to clamp or release the aluminum rod. The two push plates 412 are arranged behind the extrusion clamps 411 and driven by a push plate driving cylinder respectively. When the two push plates 412 are closed, they can contact and push the clamped aluminum rod forward after the two extrusion clamps 411 clamp the aluminum rod; the hydraulic push rod 42 is installed on the rear mounting frame 12, and is connected to and moves the extrusion clamp 41 at the same time, so as to provide the aluminum rod with extrusion forming thrust via the two push plates 412 when the two extrusion clamps 411 clamp the aluminum rod.

[0053] like Figure 1 and Figure 2As shown, the loading and positioning mechanism 3 of this embodiment includes a positioning push rod 31, an upper support plate 32, and an upper cylinder 33. The positioning push rod 31 is located behind the loading position 8 and mounted on the rear mounting frame 12. It is used to prevent the aluminum bar from falling when it moves with the front extrusion and clamping mechanism 4. The upper cylinder 33 is connected to the upper support plate 32 to drive the upper support plate 32 to move to the loading position 8 or retract. The upper support plate 32 is used to support the aluminum bar to the loading position 8. Since the extrusion clamping mechanism 4 needs to clamp the aluminum rod, and the upper support plate 32 will interfere with the clamping action of the extrusion clamping mechanism 4 when supporting the aluminum rod, the upper support plate 32 needs to retreat when the extrusion clamping mechanism 4 clamps the aluminum rod, and uses the positioning push rod 31 to push the aluminum rod against the push plate 412 of the front extrusion clamping mechanism 4. This is equivalent to the positioning push rod 31 and the front extrusion clamping mechanism 4 jointly clamping this section of aluminum rod, and moving with the front extrusion clamping mechanism 4 to keep the aluminum rod from falling. At this time, the sides of the aluminum rod are completely exposed, which is convenient for clamping by another extrusion clamping mechanism 4. After the extrusion clamping mechanism 4 clamps the aluminum rod, the front and rear extrusion clamping mechanisms 4 are side by side, the positioning push rod 31 retreats, the push plate 412 of the rear extrusion clamping mechanism 4 is closed, and then the two extrusion clamping mechanisms 4 stop moving, and the two push plates 412 of the front extrusion clamping mechanism 4 open. Since the length of the aluminum rod is longer than the extrusion clamping mechanism 4, the front end of the aluminum rod will be exposed after the aluminum rod is clamped, and the rear extrusion clamping mechanism 4 moves forward a short distance so that the rear aluminum rod contacts the front aluminum rod. At this time, the front and rear extrusion clamping mechanisms 4 move forward synchronously. After the front extrusion clamping mechanism 4 pushes the clamped aluminum rod part into the extrusion forming die 2, the front extrusion clamping mechanism 4 releases the aluminum rod and retreats to the aluminum rod loading position 8. The rear extrusion clamping mechanism 4 continues to move forward and continues to provide extrusion forming thrust for the front aluminum rod. The upper supporting plate 32 supports the aluminum rod to move to the upper feeding position 8. When the rear extrusion clamping mechanism 4 pushes the front aluminum rod completely into the extrusion forming die 2, the rear extrusion clamping mechanism 4 gives up the feeding position 8 at this time, and the upper supporting plate 32 supports the aluminum rod to the feeding position 8. The positioning push rod 31 moves forward again and places the aluminum rod on the push plate 412 of the front extrusion clamping mechanism 4. The aluminum rod moves with the front extrusion clamping mechanism 4 and is clamped by the rear extrusion clamping mechanism 4. This is repeated to achieve the two extrusion clamping mechanisms 4 alternately clamping the aluminum rods and feeding continuously. There is only a short pause, that is, the front extrusion clamping mechanism 4 opens the two push plates 412, and the aluminum rod clamped by the rear extrusion clamping mechanism 4 moves forward to contact the aluminum rod clamped by the front extrusion clamping mechanism 4. This very short time shortens the interval time between the front and rear sections of the aluminum rods being pushed into the extrusion forming die 2.It should be noted that the extrusion clamping mechanism 4 can be released after pushing 1 / 3 or 1 / 2 of the clamped aluminum rod into the extrusion forming die 2. Such a length is selected, on the one hand, to ensure that the aluminum rod will not deflect after entering the extrusion forming die 2 to ensure the forming quality, and on the other hand, it can shorten the interval time between the front and rear sections of the aluminum rod clamped by the extrusion clamping mechanism 4, thereby shortening the interval time between the front and rear sections of the aluminum rod being pushed into the extrusion forming die 2.

[0054] Since the extrusion of aluminum rods requires a relatively large thrust, the push plate 412 at the rear end of the extrusion fixture 41 is the main component that pushes the aluminum rods for extrusion. Since the hydraulic push rod 42 is not directly against the back of the push plate 412, it has undergone a turning point, which requires a high strength of the sliding structure of the push plate 412. Moreover, under long-term use, the sliding structure of the push plate 412 may also bend.

[0055] like Figure 5 and Figure 7 As shown, each extrusion clamp 411 of this embodiment includes a clamp mounting plate 4111, a U-shaped support frame 4112, a clamp 4113, an electric push rod 4114, a tension spring 4115 and four guide rods 4116. A slider is provided on the back of the clamp mounting plate 4111. The clamp mounting plate 4111 is slidably connected to the corresponding support frame via the slider. The U-shaped support frame 4112 is slidably connected to the clamp mounting plate 4111 via the four guide rods 4116. The clamp driving cylinder 413 is installed on the clamp mounting plate 4111 and connected to the U-shaped support frame 4112 to drive the U-shaped support frame 4112 to move. The side walls of the U-shaped support frame 4112 are formed by There are multiple strip openings 41121 from front to back. The length direction of each strip opening 41121 is the same as the opening and closing direction of the extrusion clamp 411. The strip openings 41121 on the side walls correspond to each other one by one, and two corresponding strip openings 41121 form a group. There are multiple clips 4113, each clip 4113 corresponds to a group of strip openings 41121, and each clip 4113 is installed in the corresponding group of strip openings 41121 and can move along the length direction of the strip openings 41121. The inner wall of each clip 4113 is provided with a protrusion 41131 to increase the clamping force and friction of the clip 4113 on the aluminum rod. Figure 7 As shown, there are multiple electric push rods 4114, each electric push rod 4114 corresponds to a clip 4113, which is used to lock the position of the clip 4113; Figure 5As shown, there are multiple tension springs 4115, each tension spring 4115 corresponds to a clip 4113, one end of the tension spring 4115 is connected to the clip 4113, and the other end is connected to the U-shaped support frame 4112. The tension spring 4115 is stretched to pull the clip 4113 backward when the electric push rod 4114 unlocks the clip 4113; in the process of the extrusion clamping mechanism 4 pushing the clamped aluminum rod into the extrusion forming mold 2, the electric push rods 4114 arranged from front to back unlock the clips 4113 in turn, and the tension springs 4115 pull the clip 4113 backward, so that the clips 4113 arranged from front to back are gradually opened and avoid the extrusion forming mold 2. Since the thrust exerted on the aluminum rod during the process of being pushed into the extrusion forming die 2 comes from the friction of the extrusion clamp 411 and the thrust of the push plate 412, the extrusion clamp 411 adopts a structure of multiple clamps 4113, which allows the extrusion clamp 41 to reach the longest possible length, increasing the contact area between the extrusion clamp 411 and the aluminum rod. In this way, when the hydraulic push rod 42 drives the extrusion clamp 41 to push the clamped aluminum rod into the extrusion forming die 2, it can increase the friction between the extrusion clamp 411 and the aluminum rod to provide as much extrusion thrust as possible, thereby reducing the thrust of the push plate 412 at the rear end of the extrusion clamp 411 on the aluminum rod, which in turn reduces the pressure exerted on the push plate 412. On the one hand, it can reduce the strength requirement of the push plate 412, and on the other hand, it can also avoid bending of the push plate 412, thereby extending the service life of the extrusion clamp 41. In addition, due to the increased length of the extrusion clamp 411, if the extrusion clamp 411 is fixed, it will inevitably interfere with the extrusion die 2 during the process of pushing the aluminum rod into the extrusion forming die 2, affecting the extrusion forming of the aluminum rod. Therefore, the extrusion clamp 411 is designed to be in the form of multiple clips 4113, and each clip 4113 is movable. In this way, when the extrusion clamping mechanism 4 pushes the clamped aluminum rod into the extrusion forming die 2, the multiple clips 4113 can sequentially avoid the extrusion forming die 2, avoiding interference between the clips 4113 and the extrusion forming die 2. In other words, the portion of the extrusion clamp 411 that clamps the aluminum rod is a rigid clamp to ensure the clamping force and friction of the extrusion clamp 411 on the aluminum rod, while the portion of the extrusion clamp 411 that does not clamp the aluminum rod is movable to avoid the extrusion forming die 2. It should be noted that the size of the area enclosed by the two U-shaped support frames 4112 in the extrusion clamp 41 is larger than the size of the extrusion forming die 2, so as to provide space for the clips 4113 to avoid.

[0056] like Figure 1 、 Figure 2 and Figure 5As shown, the aluminum profile extrusion machine also includes a clip reset block 5, which is provided with two clip reset blocks 5 and is symmetrically arranged on both sides above the extrusion forming die 2. Each clip reset block 5 corresponds to an extrusion clamping block 411 in the extrusion clamping mechanism 4. After the extrusion clamping mechanism 4 pushes the clamped aluminum rod into the extrusion forming die 2, the opened clips 4113 on the two extrusion clamping blocks 411 extend out of the strip opening 41121 to contact the side wall of the clip reset block 5. When the extrusion clamping mechanism 4 needs to open and retract to the loading position 8, the two extrusion clamping blocks 411 of the extrusion clamping mechanism 4 gradually open, the U-shaped support frame 4112 moves backward, the clip 4113 contacts the edge of the clip reset block 5 and remains stationary, and the tension spring 4115 is stretched until the two extrusion clamping blocks 411 are opened into place, and the electric push rod 4114 extends out and locks the position of the clip 4113 to achieve the reset of the clip 4113. Because the two extrusion clamping mechanisms 4 are arranged vertically, and the clips 4113 of both extrusion clamping mechanisms 4 require the help of the clip reset block 5 to reset them, the clip reset block 5 is L-shaped, with each right-angled side of the clip reset block 5 corresponding to a extrusion clamping mechanism 4, thus reducing the number of clip reset blocks 5. Furthermore, protrusions 41131 are provided on the clips 4113. Because the aluminum bar has low rigidity at high temperatures, when the extrusion clamp 411 clamps the aluminum bar, the protrusions 41131 on the extrusion clamp 411 can sink into the outer wall of the aluminum bar, thereby increasing the clamping force and friction of the extrusion clamp 411 on the aluminum bar.

[0057] Since different types of aluminum profiles are extruded using aluminum rods of different thicknesses, in order to adapt to aluminum rods of different thicknesses, a gap is left between the two extrusion clamps 411 of the extrusion clamp 41 after clamping the aluminum rod to maintain the clamping force of the two extrusion clamps 411 on the aluminum rod. That is, a gap is left between the two U-shaped support frames 4112, but the individual clips 4113 of the extrusion clamp 411 are gradually opened from front to back, rather than opened together. After the front part of the clips 4113 are opened, the rear part of the clips 4113 are still clamping the aluminum rod, and the connection force application point of the extrusion clamp 411 is in the middle. At this time, the front ends of the two U-shaped support frames 4112 will be closer, resulting in a tapered structure with a narrow front and a wide back between the two U-shaped support frames 4112, which will cause the extruded aluminum rod to be slightly deformed and reduce the friction between the extrusion clamp 411 and the aluminum rod.

[0058] like Figure 5As shown, the extrusion clamp 41 of this embodiment also includes a locking mechanism 6 for locking two U-shaped support frames 4112. After the extrusion clamp 41 clamps the aluminum rod, the locking mechanism 6 connects the two U-shaped support frames 4112 and keeps the two positions relatively stationary. The two U-shaped support frames 4112 can remain relatively stationary under the locking mechanism 6. In this way, when the extrusion clamping mechanism 4 pushes the clamped aluminum rod into the extrusion forming die 2, even if the clips 4113 arranged from front to back are gradually opened, the two U-shaped support frames 4112 will not be deflected due to uneven force, causing the clamped aluminum rod to deform or affecting the friction force of the extrusion clamp 411 on the aluminum rod. After the extrusion clamping mechanism 4 pushes the clamped aluminum rod into the extrusion forming die 2 and needs to be opened, the locking mechanism 6 is unlocked, and the two extrusion clamps 411 of the extrusion clamping mechanism 4 open and retract.

[0059] Since a small amount of aluminum slag will adhere to the extrusion clamp 411 after clamping the aluminum rod, a layer of aluminum oxide will form on the inner wall surface of the extrusion clamp 411 over a long period of time. After the extrusion clamp 411 clamps the aluminum rod, the aluminum oxide on the inner wall of the extrusion clamp 411 will adhere to the surface of the aluminum rod and enter the extrusion forming die 2 with the aluminum rod for extrusion, thereby affecting the quality of the aluminum profile.

[0060] As shown Figure 2 and 6As shown, the aluminum profile extruder of this embodiment also includes a fixture cleaning mechanism 7, which includes a mounting sleeve 71, a cleaning brush 72, a rotating sleeve 73, a cleaning cylinder 74 and a gear drive pair 75. The mounting sleeve 71 is sleeved on the rear end of the extrusion forming die 2, and the mounting sleeve 71 can rotate around the extrusion forming die 2 and can also move along the axis of the extrusion forming die 2; there are two cleaning brushes 72, which are symmetrically arranged on both sides of the mounting sleeve 71 and correspond to an extrusion clamping block 411 respectively, for cleaning the inner wall of the corresponding extrusion clamping block 411; the rotating sleeve 73 is sleeved on the front end of the extrusion forming die 2, the gear drive pair 75 is connected to the rotating sleeve 73 and can drive the rotating sleeve 73 to rotate, and the cleaning cylinder 74 is provided with a plurality of cleaning brushes 72. There are two of them, which are symmetrically installed on both sides of the rotating sleeve 73. The two cleaning cylinders 74 correspond to the two cleaning brushes 72 one by one. Each cleaning cylinder 74 is provided with a cleaning push rod, which is connected to the mounting sleeve 71 and can drive the mounting sleeve 71 to move along the axis of the extrusion forming die 2; the rotating sleeve 73 drives the mounting sleeve 71 to rotate into place via the cleaning cylinder 74, and after the extrusion clamping mechanism 4 pushes the clamped aluminum rod into the extrusion forming die 2, the extrusion clamping mechanism 4 is sleeved on the outside of the mounting sleeve 71, and the inner walls of the two extrusion clamping blocks 411 of the extrusion clamping mechanism 4 contact the cleaning brush 72, and the cleaning brush 72 moves back and forth with the cleaning push rod of the cleaning cylinder 74 via the mounting sleeve 71 to clean the aluminum slag adhering to the inner wall of the extrusion clamping block 411. Because the two extrusion clamping mechanisms 4 are arranged vertically, the extrusion clamping blocks 411 of the two extrusion clamping mechanisms 4 are arranged in different directions. The direction of the extrusion clamping block 411 to be moved to the extrusion die 2 is determined in advance. The installation sleeve 71 is driven to rotate by the rotating sleeve 73, and the cleaning brush 72 rotates with the installation sleeve 71 until the cleaning brush 72 can align with the inner wall surface of the extrusion clamping block 411. As the extrusion clamping mechanism 4 pushes the clamped aluminum rod into the extrusion die 2, the clips 4113 arranged from front to back gradually open and avoid the extrusion die 2. The opened clips 4113 sequentially contact the cleaning brush 72, which cleans the aluminum slag adhering to the inner wall of the clips 4113. The cleaning cylinder 74 can move the cleaning brush 72 back and forth to further clean the aluminum slag adhering to the inner wall of the clips 4113. The cleaning brush 72 can also be in the form of a rotating belt brush and a driving motor. When a certain clip 4113 moves to the cleaning brush 72, the driving motor drives the rotating belt brush to rotate to further clean the aluminum slag adhered to the inner wall of the clip 4113. Figure 6 As shown, a baffle 76 can also be set in front of the mounting sleeve 71. The baffle 76 is provided with an exhaust pipe 761. An approximately closed space is formed between the baffle 76 and the clip 4113. The exhaust pipe 761 exhausts air to extract the aluminum slag in the approximately closed space.

[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. Aluminum profile extrusion machine, including: Extrusion die, used for extrusion molding of aluminum bars; It is characterized by further comprising: The loading position is set behind the extrusion die; Loading positioning mechanism, used to support the aluminum bar to the loading position; The extrusion clamping mechanism is used to clamp the aluminum rod at the feeding position and provide the aluminum rod with a thrust for extrusion molding. The aluminum rod is longer than the length of the extrusion clamping mechanism so that the front end of the clamped aluminum rod leaks out. There are two extrusion clamping mechanisms. After the two extrusion clamping mechanisms have clamped the aluminum rod in succession, they move side by side toward the side of the extrusion molding die. After the front extrusion clamping mechanism pushes the clamped aluminum rod into the extrusion molding die, it releases the aluminum rod and retreats to the feeding position. The rear extrusion clamping mechanism continues to move until the feeding position is vacated. The feeding positioning mechanism supports the next section of aluminum rod to the feeding position and is clamped by the front extrusion clamping mechanism. After the front extrusion clamping mechanism has clamped the aluminum rod, the two extrusion clamping mechanisms move forward side by side again. The two extrusion clamping mechanisms alternately clamp the aluminum rod and feed continuously to shorten the interval time of feeding the front and rear sections of aluminum rods. The squeeze clamping mechanism includes: The extrusion clamp is equipped with two extrusion clamps and two push plates. The two extrusion clamps are symmetrically arranged and can be opened or closed to clamp or release the aluminum rod. The push plate is arranged behind the extrusion clamps to contact and push the clamped aluminum rod forward after the two extrusion clamps have clamped the aluminum rod. A hydraulic push rod is connected to and moves the extrusion clamp to provide the aluminum rod with extrusion-forming thrust through two push plates when the two extrusion clamps clamp the aluminum rod; The loading and positioning mechanism includes: The positioning push rod is set behind the loading position to prevent the aluminum rod from falling when it moves with the extrusion clamping mechanism in front; The upper support plate can be driven to move and is used to support the aluminum bars to the loading position; When loading the material through the loading and positioning mechanism, the upper support plate supports the aluminum rod to the loading position, the positioning push rod moves forward and places the aluminum rod on the push plate of the front extrusion clamping mechanism, the aluminum rod moves with the front extrusion clamping mechanism, and the upper support plate retreats to facilitate the rear extrusion clamping mechanism to clamp the aluminum rod.

2. The aluminum profile extruder according to claim 1, characterized in that: Each extrusion clamp includes: The U-shaped support frame has a plurality of strip openings on both side walls from front to back, the length direction of each strip opening being the same as the opening and closing direction of the extrusion clamp, the strip openings on both side walls corresponding to each other, and two corresponding strip openings forming a group; The clips are provided with a plurality of clips, each clip corresponding to a group of strip openings, each clip being installed in the corresponding group of strip openings and being movable along the length direction of the strip openings; There are multiple electric push rods, each of which corresponds to a clip for locking the position of the clip; There are multiple tension springs, each corresponding to a clip, one end of the tension spring is connected to the clip, and the other end is connected to the U-shaped support frame. The tension spring is stretched to pull the clip backward when the electric push rod unlocks the clip; When the extrusion clamping mechanism pushes the clamped aluminum rod into the extrusion forming die, the electric push rods arranged from front to back unlock the clamps in sequence, and the tension springs pull the clamps backward, so that the clamps arranged from front to back gradually open and avoid the extrusion forming die.

3. The aluminum profile extruder according to claim 2, characterized in that: The extrusion fixture further comprises a locking mechanism for locking the two U-shaped support frames. After the extrusion fixture clamps the aluminum rod, the locking mechanism connects the two U-shaped support frames and keeps their positions relatively fixed.

4. The aluminum profile extruder according to claim 1, characterized in that: Also included is a fixture cleaning mechanism, which includes: The mounting sleeve is sleeved on the rear end of the extrusion forming die, and the mounting sleeve can rotate around the extrusion forming die and can also move along the axis of the extrusion forming die; There are two cleaning brushes, which are symmetrically arranged on both sides of the mounting sleeve and correspond to an extrusion clamp respectively, for cleaning the inner wall of the corresponding extrusion clamp; The rotating sleeve is sleeved on the front end of the extrusion die and can rotate; There are two cleaning cylinders, which are symmetrically installed on both sides of the rotating sleeve. The two cleaning cylinders correspond to the two cleaning brushes one by one. Each cleaning cylinder is provided with a cleaning push rod, which is connected to the mounting sleeve and can drive the mounting sleeve to move along the axis of the extrusion die. The rotating sleeve drives the mounting sleeve to rotate into place via the cleaning oil cylinder. After the extrusion clamping mechanism pushes the clamped aluminum rod into the extrusion forming die, the extrusion clamping mechanism is sleeved on the outside of the mounting sleeve. The inner walls of the two extrusion clamping blocks of the extrusion clamping mechanism contact the cleaning brush. The cleaning brush moves back and forth through the mounting sleeve along with the cleaning push rod of the cleaning oil cylinder to clean the aluminum slag adhered to the inner wall of the extrusion clamping block.

5. The aluminum profile extruder according to claim 1, characterized in that: The inner wall of the extrusion clamp is provided with a protrusion to increase the clamping force and friction force of the extrusion clamp on the aluminum rod.

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