Aluminum profile extruding machine

Abstract

The invention discloses an aluminum profile extruding machine, relates to aluminum profile extruding equipment, and aims to solve the problems that the production efficiency is low and the quality of an extruded and formed aluminum profile is influenced due to long pause time since a hydraulic push rod needs to return and a feeding mechanism is used for feeding when two sections of aluminum bars are extruded. After the two extrusion clamping mechanisms sequentially clamp an aluminum bar, the two extrusion clamping mechanisms move towards the side of the extrusion forming die side by side front and back, after the front extrusion clamping mechanism pushes the clamped aluminum bar into the extrusion forming die, the aluminum bar is loosened and retreats to the feeding position, and the rear extrusion clamping mechanism continues to move till the feeding position is reserved. The feeding positioning mechanism supports the next section of aluminum bar to the feeding position, the next section of aluminum bar is clamped by the front extruding and clamping mechanism, after the extruding and clamping mechanisms clamp the aluminum bar, the two extruding and clamping mechanisms move forwards again, the two extruding and clamping mechanisms alternately clamp the aluminum bar and continuously feed the aluminum bar, and therefore the interval time of feeding of the front section of aluminum bar and the rear section of aluminum bar is shortened. The device 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] The aluminum extrusion machine uses a hydraulic push rod to push the high-temperature aluminum rod through the die to extrude and form. After a section of aluminum rod is extruded, the hydraulic push rod retreats, the feeding mechanism loads the material, and the hydraulic push rod moves forward to extrude the newly loaded aluminum rod. Between extruding two sections of aluminum rods, the hydraulic push rod needs to retreat and the feeding mechanism loads the material, which requires a long pause in the middle. On the one hand, the production efficiency is low, and on the other hand, the long pause time will also affect 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 continuously feed the bars, 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 machine, including: Extrusion forming die, used for extrusion forming of aluminum bars; Also includes: The feeding position is set behind the extrusion die; The loading positioning mechanism is 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 thrust for the aluminum rod 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 can leak 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 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 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 in this way to shorten the interval time for feeding the front and rear sections of aluminum rods.

[0006] After the front extrusion clamping mechanism clamps the aluminum bar, it gradually gives up the feeding position of the aluminum bar during the movement toward the extrusion forming die side, and 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 bar to the feeding position and clamp it by the next extrusion clamping mechanism. The two extrusion clamping mechanisms move side by side front and back to feed. When the front extrusion clamping mechanism pushes the clamped aluminum bar into the extrusion forming die, the aluminum bar is released and retreats to the feeding position to clamp the next section of aluminum bar. The two extrusion clamping mechanisms are used to alternately clamp the aluminum bar and continuously push the front and rear sections of the aluminum bar into the extrusion forming die for extrusion forming, so as to shorten the feeding time of the front and rear sections of the aluminum bar and the interval time of being pushed into the extrusion forming die, improve production efficiency, and improve the quality of extruded aluminum profiles.

[0007] 2. Based on technical solution 1, the extrusion clamping mechanism includes: The extrusion clamp is provided 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 an extrusion-forming thrust through two push plates when the two extrusion clamps clamp the aluminum rod; The feeding 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 the loading and positioning mechanism is loading, 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 extrusion clamping mechanism in the front, the aluminum rod moves with the extrusion clamping mechanism in the front, and the upper support plate retreats to facilitate the extrusion clamping mechanism in the rear to clamp the aluminum rod.

[0008] 3. Based on technical solution 2, each extrusion clamp includes: The U-shaped support frame has a plurality of strip openings respectively opened on the side walls from front to back, the length direction of each strip opening is the same as the opening and closing direction of the extrusion clamp, the strip openings on the side walls on both sides correspond to each other, and two corresponding strip openings form a group; A plurality of clips are provided, each clip corresponds to a group of strip openings, each clip is installed in a corresponding group of strip openings, and can move 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; A plurality of tension springs are provided, each tension spring corresponds 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, and 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.

[0009] 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 fixed.

[0010] 5. Based on technical solution 2, it also includes a fixture cleaning mechanism, which includes: The installation sleeve is sleeved on the rear end of the extrusion forming die, and the installation 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 a squeeze clamp respectively, and are used for cleaning the inner wall of the corresponding squeeze clamp; A rotating sleeve is sleeved on the front end of the extrusion forming die and can rotate; There are two cleaning oil cylinders, which are symmetrically installed on both sides of the rotating sleeve. The two cleaning oil cylinders correspond to the two cleaning brushes one by one. Each cleaning oil 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 forming die; The rotating sleeve drives the mounting sleeve to rotate into place via the cleaning cylinder. After the extrusion clamping mechanism pushes the clamped aluminum rod into the extrusion forming die, the extrusion clamping mechanism is sleeved outside 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 via the mounting sleeve along with the cleaning push rod of the cleaning cylinder to clean the aluminum slag adhered to the inner wall of the extrusion clamping block.

[0011] 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

[0012] Figure 1 It is a schematic diagram of the three-dimensional structure of the aluminum profile extruder of the present invention.

[0013] Figure 2 This is a schematic diagram of the upper support plate supporting the aluminum rod to the loading position.

[0014] Figure 3A schematic diagram showing the state in which another 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.

[0015] Figure 4 It is a schematic diagram of the state when two extrusion clamping mechanisms clamp two sections of aluminum bars in succession and move synchronously.

[0016] Figure 5 It is a structural schematic diagram of the extrusion clamping mechanism.

[0017] Figure 6 This is a schematic diagram of the state in which one of the extrusion clamping mechanisms pushes the clamped aluminum rod into the extrusion molding mold and then opens.

[0018] Figure 7 for Figure 6 A partial enlarged view of point A in the middle.

[0019] Reference numerals include: Frame 1, front mounting frame 11, rear mounting frame 12, upper supporting frame 13, lower supporting frame 14, left supporting frame 15, right supporting frame 16; Extrusion molding die 2; Feeding positioning mechanism 3, positioning push rod 31, upper support plate 32, upper oil cylinder 33; Extrusion clamping mechanism 4, extrusion clamp 41, extrusion clamp block 411, clamp block 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 block driving cylinder 413; hydraulic push rod 42; Clip reset block 5; Locking mechanism 6; 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; Loading position 8. DETAILED DESCRIPTION

[0020] The present invention is described in detail below in conjunction with specific embodiments.

[0021] See also Figure 1 , Figure 2 and Figure 6The aluminum profile extruder of this embodiment includes a frame 1, an extrusion forming die 2, a material loading 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 from front to 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, and 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. Figure 2 As shown, the extrusion forming die 2 is mounted on the front mounting frame 11 and is used to extrude the aluminum rod to form an aluminum profile. The feeding positioning mechanism 3 is obliquely arranged on one side of the right support frame 16 and is used to support the aluminum rod to the feeding position 8 behind the extrusion forming die 2. The extrusion clamping mechanism 4 is used to clamp the aluminum rod at the feeding position 8 and provide thrust for the aluminum rod to be extruded. 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 leak out; Figure 1 and Figure 2 As shown, there are two extrusion clamping mechanisms 4, which are respectively configured as the first extrusion clamping mechanism and the 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 are opened and closed left and right to clamp or release the aluminum rod. 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 are opened and closed up and down to clamp or release the aluminum rod. During use, the feeding positioning mechanism 3 first supports a section of aluminum rod to the feeding 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 feeding positioning mechanism 3 supports the next section of aluminum rod to move to the feeding position 8. When the first extrusion clamping mechanism moves to the position between the aluminum rod feeding position 8 and the extrusion forming mold 2, the aluminum rod feeding position 8 has been completely vacated, as shown in FIG. Figure 3 As shown, the loading positioning mechanism 3 supports the aluminum rod and moves to the loading position 8, and the second extrusion clamping mechanism clamps the aluminum rod. After the second extrusion clamping mechanism clamps the aluminum rod, 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 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 gives up 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 clamp the aluminum rod alternately and continuously push the front and rear sections of the aluminum rod 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 rod and the interval time of being pushed into the extrusion forming die 2.

[0022] 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 given up, and the loading positioning mechanism 3 can load in advance. When the extrusion clamping mechanism 4 completely gives up 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 extruded aluminum profiles. 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 of the extrusion clamping mechanisms 4 retreats from the extrusion molding 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 between the two extrusion clamping mechanisms 4 during the alternating movement.

[0023] 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, so as 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.

[0024] like Figure 1 and Figure 2As shown, the feeding positioning mechanism 3 of this embodiment includes a positioning push rod 31, an upper support plate 32 and an upper oil cylinder 33. The positioning push rod 31 is arranged behind the feeding position 8 and mounted on the rear mounting frame 12, and is used to keep the aluminum bar from falling when it moves with the front extrusion clamping mechanism 4. The upper oil cylinder 33 is connected to the upper support plate 32 to drive the upper support plate 32 to move to the feeding position 8 or retreat. The upper support plate 32 is used to support the aluminum bar to the feeding 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 side of the aluminum rod is 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 arranged 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, and after the front extrusion clamping mechanism 4 pushes the clamped aluminum rod part into the extrusion molding die 2, the front extrusion clamping mechanism 4 releases the aluminum rod and retreats to the feeding position 8 of the aluminum rod, and the rear extrusion clamping mechanism 4 continues to move forward and continues to provide extrusion molding thrust for the front aluminum rod. The upper support 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 support 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 continuously feeding, with 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 molding die 2. Such a length is selected, on the one hand, to ensure that the aluminum rod will not be deflected after entering the extrusion molding die 2 to ensure the molding 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 molding die 2.

[0025] Since the extrusion of aluminum bars 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 bars for extrusion. Since the hydraulic push rod 42 is not directly against the back of the push plate 412, but has undergone a turning point, the strength requirements of the sliding structure of the push plate 412 are relatively high, and the sliding structure of the push plate 412 may also bend under long-term use.

[0026] like Figure 5 and Figure 7 As shown, each extrusion clamp 411 of the present embodiment includes a clamp mounting plate 4111, a U-shaped support frame 4112, a clamping piece 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 provided with a slider. There are multiple strip openings 41121 from front to back, and 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, 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, 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 of which 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; when the extrusion clamping mechanism 4 pushes the clamped aluminum rod into the extrusion forming mold 2, the electric push rods 4114 arranged from front to back unlock the clip 4113 in turn, and the tension spring 4115 pulls the clip 4113 backward, so that the clip 4113 arranged from front to back is gradually opened and avoids 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 can allow the extrusion fixture 41 to reach the longest possible length and increase the contact area between the extrusion clamp 411 and the aluminum rod. In this way, when the hydraulic push rod 42 drives the extrusion fixture 41 to push the clamped aluminum rod into the extrusion forming die 2, the friction between the extrusion clamp 411 and the aluminum rod can be increased to provide as much extrusion thrust as possible. In this way, the thrust of the push plate 412 at the rear end of the extrusion clamp 411 on the aluminum rod can be reduced, which in turn reduces the pressure exerted on the push plate 412. On the one hand, the strength requirement of the push plate 412 can be reduced, and on the other hand, the bending of the push plate 412 can be avoided, thereby extending the service life of the extrusion fixture 41. In addition, since the length of the extrusion clamp block 411 is lengthened, if the extrusion clamp block 411 adopts a fixed mode, when the aluminum rod is pushed into the extrusion forming die 2, it will inevitably interfere with the extrusion forming die 2, affecting the extrusion forming of the aluminum rod. Therefore, the extrusion clamp block 411 is designed to be in the form of multiple clips 4113, and each clip 4113 can be movable, so that when the extrusion clamping mechanism 4 pushes the clamped aluminum rod into the extrusion forming die 2, the multiple clips 4113 can avoid the extrusion forming die 2 in turn, avoiding the interference between the clips 4113 and the extrusion forming die 2. In other words, the part of the extrusion clamp block 411 clamping the aluminum rod is a rigid clamping to ensure the clamping force and friction force of the extrusion clamp block 411 on the aluminum rod, while the part of the extrusion clamp block 411 that does not clamp the aluminum rod can be 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 that a space for the clips 4113 to avoid can be provided.

[0027] like Figure 1 , Figure 2 and Figure 5As shown, the aluminum profile extrusion machine also includes a clip reset block 5, two of which are 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, and 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, and when the extrusion clamping mechanism 4 needs to be opened and retreated to the feeding position 8, the two extrusion clamping blocks 411 of the extrusion clamping mechanism 4 are gradually opened, the U-shaped support frame 4112 moves backward, the clip 4113 contacts the edge of the clip reset block 5 and remains motionless, and the tension spring 4115 is stretched until the two extrusion clamping blocks 411 are opened in 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. Since the two extrusion clamping mechanisms 4 are arranged vertically, and the clips 4113 of the two extrusion clamping mechanisms 4 need to be reset with the help of the clip reset block 5, the clip reset block 5 is L-shaped, and each right-angled side of the clip reset block 5 corresponds to an extrusion clamping mechanism 4, thereby reducing the number of clip reset blocks 5. In addition, a protrusion 41131 is provided on the clip 4113. Since the rigidity of the aluminum rod is relatively low at high temperature, when the extrusion clamp block 411 clamps the aluminum rod, the protrusion 41131 on the extrusion clamp block 411 can be sunk into the outer wall of the aluminum rod, thereby increasing the clamping force and friction force of the extrusion clamp block 411 on the aluminum rod.

[0028] Since different types of aluminum profiles are extruded and formed using aluminum bars of different thicknesses, in order to adapt to aluminum bars of different thicknesses, a gap is left between the two extrusion clamps 411 of the extrusion clamp 41 after clamping the aluminum bar, so as to maintain the clamping force of the two extrusion clamps 411 on the aluminum bar. That is to say, 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 bar, 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 conical structure with a narrow front and a wide back between the two U-shaped support frames 4112, which will cause the extruded aluminum bar to be slightly deformed and reduce the friction between the extrusion clamp 411 and the aluminum bar.

[0029] 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 immobile. The two U-shaped support frames 4112 can keep their positions relatively immobile under the locking of the locking mechanism 6, so that when the extrusion clamping mechanism 4 pushes the clamped aluminum rod into the extrusion forming mold 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 mold 2 and needs to be opened, the locking mechanism 6 is unlocked, and the two extrusion clamps 411 of the extrusion clamping mechanism 4 are opened and retreated.

[0030] 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 of the extrusion clamp 411 after long-term accumulation. 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.

[0031] 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, and are used 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 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 mold 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 mold 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 adhered to the inner wall of the extrusion clamping block 411. Since the two extrusion clamping mechanisms 4 are arranged vertically, the arrangement directions of the extrusion clamping blocks 411 of the two extrusion clamping mechanisms 4 are different. The arrangement direction of the extrusion clamping block 411 to be moved to the extrusion forming mold 2 is determined in advance, and 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 be aligned with the inner wall surface of the extrusion clamping block 411. When the extrusion clamping mechanism 4 pushes the clamped aluminum rod into the extrusion forming mold 2, the clips 4113 arranged from front to back will gradually open and avoid the extrusion forming mold 2, and the opened clips 4113 will contact the cleaning brush 72 in turn, and the cleaning brush 72 will clean the aluminum slag adhered to the inner wall of the clip 4113. The cleaning cylinder 74 can move the cleaning brush 72 back and forth to further clean the aluminum slag adhered to the inner wall of the clip 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 plate 76 may be provided in front of the mounting sleeve 71, and an exhaust pipe 761 is provided on the baffle plate 76 to form a nearly closed space between the baffle plate 76 and the clip 4113. The exhaust pipe 761 exhausts air to extract the aluminum slag in the nearly closed space.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution 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 solution of the present invention can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the present invention.

Claims

1. Aluminum profile extrusion machine, including: Extrusion forming die, used for extrusion forming of aluminum bars; It is characterized by further comprising: The feeding position is set behind the extrusion die; The loading positioning mechanism is 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 thrust for the aluminum rod 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 can leak 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 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 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 in this way to shorten the interval time for feeding the front and rear sections of aluminum rods.

2. The aluminum profile extruder according to claim 1, characterized in that: The extrusion clamping mechanism includes: The extrusion clamp is provided 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 an extrusion-forming thrust through two push plates when the two extrusion clamps clamp the aluminum rod; The feeding 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 the loading and positioning mechanism is loading, 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 extrusion clamping mechanism in the front, the aluminum rod moves with the extrusion clamping mechanism in the front, and the upper support plate retreats to facilitate the extrusion clamping mechanism in the rear to clamp the aluminum rod.

3. The aluminum profile extruder according to claim 2, characterized in that: Each extrusion clamp includes: The U-shaped support frame has a plurality of strip openings respectively opened on the side walls from front to back, the length direction of each strip opening is the same as the opening and closing direction of the extrusion clamp, the strip openings on the side walls on both sides correspond to each other, and two corresponding strip openings form a group; A plurality of clips are provided, each clip corresponds to a group of strip openings, each clip is installed in a corresponding group of strip openings, and can move 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; A plurality of tension springs are provided, each tension spring corresponds 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, and 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.

4. The aluminum profile extruder according to claim 3, characterized in that: The extrusion clamp also includes a locking mechanism for locking the two U-shaped support frames. After the extrusion clamp clamps the aluminum rod, the locking mechanism connects the two U-shaped support frames and keeps the positions of the two relatively fixed.

5. The aluminum profile extruder according to claim 2, characterized in that: Also included is a fixture cleaning mechanism, which includes: The installation sleeve is sleeved on the rear end of the extrusion forming die, and the installation 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 a squeeze clamp respectively, and are used for cleaning the inner wall of the corresponding squeeze clamp; A rotating sleeve is sleeved on the front end of the extrusion forming die and can rotate; There are two cleaning oil cylinders, which are symmetrically installed on both sides of the rotating sleeve. The two cleaning oil cylinders correspond to the two cleaning brushes one by one. Each cleaning oil 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 forming die; The rotating sleeve drives the mounting sleeve to rotate into place via the cleaning cylinder. After the extrusion clamping mechanism pushes the clamped aluminum rod into the extrusion forming die, the extrusion clamping mechanism is sleeved outside 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 via the mounting sleeve along with the cleaning push rod of the cleaning cylinder to clean the aluminum slag adhered to the inner wall of the extrusion clamping block.

6. The aluminum profile extruder according to claim 2, 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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