A method of controlling extrusion of an aluminium profile extrusion press and an extrusion press

Abstract

The present application relates to a kind of control aluminium profile extruder extrusion method and extruder, it is related to the field of aluminium profile extruder, it includes control feed inlet to carry out material delivery, and control longitudinal extrusion plate to form feed space and rise;Determine the number of transverse extrusion plate and the number generation time when the transverse pressure value is not 0 by reading the transverse pressure value on the transverse extrusion plate through pressure sensor;Calculate the number generation rate according to the number of transverse extrusion plate and the number generation time;According to the number generation rate conversion material entering rate and material extrusion rate, and combine the size of feed space to calculate the extrusion plate push rate;When the number of transverse extrusion plate and the number of discharge port are consistent, control the transverse extrusion plate corresponding to the number of discharge port to reciprocate according to the extrusion plate push rate and extrude, until moving to the edge of feed inlet close to the transverse extrusion plate or preset initial position.The present application has the effect of reducing material waste.

Description

Technical Field

[0001] This invention relates to the field of aluminum profile extrusion presses, and more particularly to a method for controlling the extrusion process of an aluminum profile extrusion press and an extrusion press itself. Background Technology

[0002] As a core component in lightweight structures, the uniformity of aluminum profile feeding during processing directly affects the quality stability of the final product.

[0003] Most existing aluminum profile extrusion presses use a fixed feeding space and process materials through a single extrusion method. This method is simple to operate and maintain in mass production, and can meet the profile processing requirements of general precision. In related technologies, such as Chinese Patent Publication No. CN115488179A, an extrusion press for aluminum profile processing is disclosed, including an extrusion press body, a forming extrusion press, an electric hydraulic extrusion press, a base plate, and a cover plate. The forming extrusion press is fixedly installed at the left end of the extrusion press body, the electric hydraulic extrusion press is fixedly installed at the right end of the extrusion press body, the base plate is fixedly installed at the bottom of the extrusion press body, a control panel is electrically connected to the front end of the extrusion press body, the cover plate is located at the top center of the extrusion press body, a feed port is opened at the top center of the extrusion press body, a feed channel is connected to the bottom of the feed port, an aluminum profile material extrusion press is installed at the bottom of the feed channel, a discharge channel is connected to the left end of the aluminum profile material extrusion press, a push plate is provided inside the aluminum profile material extrusion press, and a hydraulic column is connected through the right end of the push plate, which can automatically control the hydraulic telescopic extrusion of the aluminum profile, so that the aluminum profile passes through the feed channel and the forming cavity and enters the forming extrusion press for forming.

[0004] Regarding the aforementioned technologies, in the feeding and extrusion process of aluminum profile extrusion presses, the material first reaches the bottom. At this point, due to the height difference between the bottom of the feeding space and the feed inlet, after a period of time, the material begins to be locally within the height range of the feed inlet, resulting in a small extrusion flow rate. Subsequently, the extrusion flow rate gradually increases until the material exceeds the height range of the feed inlet, at which point the extrusion flow rate reaches a stable state. Although the material flow is relatively stable in the later stages, the initial unstable process is relatively long, leading to significant material waste, indicating considerable room for improvement. Summary of the Invention

[0005] To reduce material waste, this invention provides a method for controlling the extrusion of aluminum profiles and an extruder.

[0006] In a first aspect, the present invention provides a method for controlling the extrusion of aluminum profiles in an extrusion press, employing the following technical solution: A method for controlling the extrusion of aluminum profiles in an extrusion press includes: Step S1: In response to the feeding start signal, control the feeding port to convey materials, and control the longitudinal extrusion plate to rise to the preset lower edge height below the discharge port and then stop rising to form a feeding space; Step S2: Read the transverse pressure value through the pressure sensor preset on the transverse extrusion plate, and determine the extrusion plate number when the transverse pressure value is not 0 and the number generation time. Define the extrusion plate number as the transverse extrusion plate number. The extrusion plate number is the number of the transverse extrusion plate that has been sorted by height in advance. Step S3: Calculate the numbering rate based on the transverse extrusion plate number and the numbering generation time; Step S4: Calculate the material infeed rate and the material extrusion rate equivalent to the material infeed rate based on the number generation rate, and calculate the extrusion plate pushing rate in combination with the preset feeding space size. Step S5: When the number of the transverse extrusion plate matches the preset discharge port number, control the transverse extrusion plate corresponding to the discharge port number to move back and forth according to the extrusion plate pushing speed to extrude until it moves to the edge of the feed port near the transverse extrusion plate or the preset initial position.

[0007] By adopting the above technical solution, the extrusion plate number and time are determined by reading the data from the transverse pressure sensor, the rate is calculated and converted into the extrusion plate pushing rate, and the extrusion is repeated according to this rate. This technical means solves the problem of material waste caused by the extrusion of existing extruders before the material covers the discharge port, and achieves the effect of reducing material waste.

[0008] Optionally, the process may include the following steps prior to step S5: Step S50: While controlling the material conveying at the feed inlet, monitor the real-time material weight in the feeding space; Step S51: When the real-time material weight reaches the preset discharge port weight threshold, if the horizontal extrusion plate number is consistent with the preset discharge port number, then no other operation is performed and step S5 is executed. Step S52: When the real-time material weight reaches the preset inlet weight threshold, if the horizontal extrusion plate number and the preset outlet number are inconsistent, the material distribution map of the material in the inlet space is obtained by the thermal scanner preset on the side of the inlet space. Step S53: Calculate the ideal volume based on the real-time material weight and the preset material density, and calculate the ideal height corresponding to the ideal volume based on the preset bottom area of ​​the feeding space. Step S54: Based on the comparison between the material distribution map and the ideal height, the raised areas and low-lying areas are obtained; Step S55: When the low-lying area is located on the side of the raised area close to the transverse extrusion plate, determine the height of the raised area based on the raised area and define the height as the raised height; Step S56: Determine the transverse extrusion plate number based on the protrusion height, and define the transverse extrusion plate number as the flattening number; Step S57: After controlling the vertical extrusion plate to move down the raised height, control the transverse extrusion plate corresponding to the flattening number to move to the edge of the raised area near the discharge port, raise the vertical extrusion plate according to the raised height, and then control the transverse extrusion plate corresponding to the flattening number to move to the initial position. Step S58: When the low-lying area is located on the side of the raised area near the discharge port, control the horizontal extrusion plate corresponding to the flattening number to move to the edge of the low-lying area near the discharge port.

[0009] By adopting the above technical solution, based on real-time monitoring of material weight, combined with material distribution map obtained by thermal scanner, and by identifying raised and low-lying areas based on ideal height comparison, the technical means of controlling the corresponding extrusion plate to level out the material solves the problem of uneven material accumulation during the feeding process, making the material distribution uniform and ensuring stable subsequent extrusion.

[0010] Optional, also includes: Step S540: When there are two low-lying areas and they are distributed on both sides of the raised area, control the longitudinal extrusion plate to vibrate longitudinally according to the preset vibration control parameters. Step S541: Obtain the vibration duration while controlling the longitudinal extrusion plate to vibrate longitudinally according to preset vibration control parameters; Step S542: When the vibration duration is less than the preset invalid duration, continue vibration; Step S543: When the vibration duration is equal to the preset invalid duration, the material distribution map obtained at this time is defined as the real-time material distribution map; Step S544: Determine whether there are still raised or low-lying areas in the material within the feeding space based on the real-time material distribution map to obtain the judgment result; Step S545: Execute the preset processing plan based on the judgment result.

[0011] By adopting the above technical solution, when the low-lying areas are located on both sides of the raised areas, the longitudinal extrusion plate is controlled to vibrate longitudinally according to the vibration parameters, and the corresponding treatment plan is executed according to whether there are raised or low-lying areas. The vibration promotes the flow and redistribution of materials, thereby improving the leveling efficiency and uniformity.

[0012] Optionally, methods for executing a preset processing plan based on the judgment result include: Step S5450: If there is a raised area or a low area, and the low area includes the low area on the discharge port side and the low area on the side of the feed port near the transverse extrusion plate, and the raised area is located between the two, calculate the range of the discharge port side leveling height required to fill the low area on the discharge port side based on the low area on the discharge port side, and determine the number of the discharge port side leveling extrusion plate. Step S5451: Calculate the difference between the height of the raised area and the height corresponding to the flattening height range on the discharge port side to obtain the remaining raised height; Step S5452: Determine the remaining extrusion plate number based on the remaining protrusion height and the flattening height range on the discharge port side; Step S5453: Control the transverse extrusion plate corresponding to the number of the flat extrusion plate and the number of the remaining extrusion plate on the discharge port side to move to the edge of the discharge port side, and control the longitudinal extrusion plate to rise to the remaining protrusion height. Step S5454: Control the horizontal extrusion plate corresponding to the number of the flat extrusion plate and the number of the remaining extrusion plate on the discharge port side to move to the initial position, and push the material with the remaining convex height to the low-lying area near the horizontal extrusion plate side of the feed port. Step S5455: Control the longitudinal extrusion plate to descend the remaining protrusion height.

[0013] By adopting the above technical solution, combining the height of the protrusion to calculate the remaining height of the protrusion, and controlling the different numbered extrusion plates to cooperate with each other, the problem that cannot be solved simultaneously in a single leveling when there are depressions on both sides is solved. This achieves the effect of step-by-step precise filling of depressions on both sides, ensuring that the material in the feeding space is flat as a whole.

[0014] Optionally, if there are raised or low-lying areas, the treatment options also include: Step S54500: If there are raised or depressed areas, determine the depression height on the discharge port side based on the depression area on the discharge port side. Step S54501: Determine whether the low-lying height on the discharge port side is greater than the preset upper edge height of the discharge port; Step S54502: If so, control the longitudinal extrusion plate to vibrate continuously without performing other operations; Step S54503: If not, control the outlet to close and execute steps S5450 to S5454; Step S54504: When the height of the low-lying area is consistent with the height of the upper edge, reopen the discharge port and control the transverse extrusion plate corresponding to the discharge port number to extrude.

[0015] By adopting the above technical solution, it is determined whether the height of the low-lying area on the discharge port side is greater than the height of the upper edge of the discharge port. Then, a leveling scheme is executed based on the determination result. This solves the problem of material waste that may occur if the low-lying area on the discharge port side is too deep, and achieves the effect of avoiding ineffective operation and ensuring the effectiveness of the extrusion process.

[0016] Optionally, during the extrusion process where the transverse extrusion plate reciprocates at the extrusion plate pushing speed, the method further includes adjusting the longitudinal extrusion plate, which includes: Step S54505: If there are no raised or low-lying areas, obtain the current height of the material in the feeding space; Step S54506: If the current height is greater than the height of the upper edge, calculate the descent distance by subtracting the height of the upper edge from the current height; Step S54507: Control the longitudinal extrusion plate to descend according to the descent distance; Step S54508: If the current height is less than the height of the upper edge, control the horizontal extrusion plate that is performing the extrusion action to stop reciprocating, keep the feed port open and the discharge port closed until the real-time material weight reaches the preset discharge port weight threshold. Step S54509: Control the transverse extrusion plate to reciprocate and extrude according to the extrusion plate pushing speed.

[0017] By adopting the above technical solution, which involves obtaining the current height of the material, calculating the descent distance and controlling the descent of the longitudinal extrusion plate if it is higher than the height of the upper edge, and pausing extrusion if it is lower than the height of the upper edge, maintaining the feeding and closing the discharge port until the weight reaches the target before resuming extrusion, the technical means of maintaining the matching between the material height and the upper edge in real time during the extrusion process is achieved, ensuring the continuous and effective extrusion action.

[0018] Optionally, step S54530: Obtain the extrusion plate number of the transverse extrusion plate that is being extruded, and define the extrusion plate number as the current number; Step S54531: Obtain the number of the horizontal extrusion plate located above the current number in the feeding space, and define it as the adjacent number; Step S54532: Control the transverse extrusion plates corresponding to adjacent numbers to move back and forth synchronously with the transverse extrusion plates corresponding to the current number; Step S54533: Obtain the readings of the pressure sensors on the transverse extrusion plates corresponding to adjacent numbers, and define them as adjacent transverse pressure values; Step S54534: If the adjacent lateral pressure value is equal to the preset pressure threshold, then control the lateral extrusion plate corresponding to the adjacent number and the lateral extrusion plate corresponding to the current number to return directly to the initial position and continue to move back and forth.

[0019] By adopting the above technical solution, the adjacent plates are controlled to move back and forth synchronously. Based on whether the pressure sensor readings of the adjacent plates have reached the pressure threshold, it is determined whether to return to the initial position together with the current plate and continue to move back and forth. This achieves the coordinated work of multiple extrusion plates and improves the uniformity and efficiency of extrusion.

[0020] Optional, also includes: Step S54535: In response to the feeding end signal, control the feed inlet to stop material conveying, close the discharge outlet, and control the longitudinal extrusion plate to descend to the preset lower edge height below the feed inlet; Step S54536: Determine the extrusion plate number above the lower edge opening height based on the lower edge opening height, define the extrusion plate number as a fixed number, control the transverse extrusion plates corresponding to the fixed number to move from their respective initial positions toward the discharge port, and collect the residual material pressure value in real time through the pressure sensor on each transverse extrusion plate during the movement. Step S54537: If the residual material pressure value of the transverse extrusion plate corresponding to the discharge port number is equal to the pressure threshold, then open the discharge port and continue to move towards the discharge port until the residual material pressure value of the transverse extrusion plate corresponding to the fixed number is equal to the pressure threshold or the number of extrusion plate numbers corresponding to the residual material pressure value equal to the pressure threshold is less than the number of discharge port numbers. Step S54538: If the number of extrusion plate numbers corresponding to the residual material pressure value equal to the pressure threshold is less than the number of discharge port numbers, then close the discharge port and continue to control the transverse extrusion plates corresponding to the fixed numbers to move from their respective initial positions toward the discharge port. Step S54539: Repeat steps SS54536 to S54538 until all the transverse extrusion plates corresponding to the fixed numbers move to the discharge port.

[0021] By adopting the above technical solution, the technical means of dynamically switching the discharge port until the residual pressure of all fixed-number extrusion plates reaches the standard or the number of remaining numbers is insufficient, solves the problem of material waste caused by residual material in the feeding space after extrusion and improves the material utilization rate.

[0022] Optional, also includes: Step S545360: During the process of controlling the transverse extrusion plates corresponding to the fixed numbers to move from their respective initial positions toward the discharge port, the residual material pressure value on the transverse extrusion plates above the upper edge of the discharge port is obtained. Step S545361: When no residual material pressure value is detected on the transverse extrusion plate above the upper edge of the discharge port, control the transverse extrusion plate to perform extrusion. Step S545362: When all the transverse extrusion plates corresponding to the fixed numbers detect residual material pressure values, control the transverse extrusion plates corresponding to the fixed numbers to retract until the transverse extrusion plates above the upper edge of the discharge port can no longer detect residual material pressure values, and then extrusion is performed again.

[0023] By adopting the above technical solution, based on the residual pressure value of the extrusion plate at the upper edge of the discharge port, if no pressure is detected, the plate is controlled to be extruded; if pressure is detected on all plates, the plates are retracted until the high-level plate is no longer under pressure before extrusion resumes. This technical approach ensures that the residual material in all the feeding space meets the residual threshold of the material, thereby reducing material waste.

[0024] Secondly, the present invention provides an extrusion press, which adopts the following technical solution: An extruder, comprising: The machine body is provided with a feeding space, which has an inlet serving as an entry channel for aluminum profiles and an outlet serving as an extrusion channel for aluminum profiles. A transverse extrusion plate is slidably connected to the feeding space. Several transverse extrusion plates are provided along the length of the feeding space and are used to laterally extrude the material in the feeding space. A transverse cylinder is located on the side of the feeding space away from the discharge port. The number of transverse cylinders is the same as that of the transverse extrusion plate. The piston rods of the transverse cylinders are fixedly connected to the transverse extrusion plate one by one to control the transverse movement of the transverse extrusion plate. The longitudinal extrusion plate is longitudinally slidably connected within the feeding space and is used to longitudinally extrude the material within the feeding space. A longitudinal cylinder is located at the bottom of the feeding space. The piston rod of the longitudinal cylinder is fixedly connected to the longitudinal extrusion plate to control the longitudinal movement of the longitudinal extrusion plate.

[0025] By adopting the above technical solution, the multi-layer extrusion structure, consisting of multiple independently controlled transverse extrusion plates and corresponding transverse cylinders, and longitudinal extrusion plates driven by longitudinal cylinders, solves the problem that existing single extrusion methods and extruders with fixed feeding spaces cannot flatten and control the extrusion of materials, resulting in uneven material distribution and unstable extrusion in the early stages. It realizes flexible control of materials in the feeding space in both transverse and longitudinal dimensions, improving the uniformity of extrusion and the utilization rate of materials.

[0026] In summary, the present invention has at least one of the following beneficial technical effects: 1. By reading data from the transverse pressure sensor to determine the extrusion plate number and time, calculating the rate and converting it into the extrusion plate pushing rate, and then reciprocating the extrusion according to this rate, the technical means of extruding the material before it covers the discharge port in the existing extruders has been solved, which has led to material waste and achieved the effect of reducing material waste. 2. By using real-time monitoring of material weight, combined with material distribution maps obtained by thermal scanners, and identifying raised and low-lying areas based on ideal height comparisons, the technology of controlling the corresponding extrusion plates to level the material solves the problem of uneven material accumulation during the feeding process, ensuring uniform material distribution and stable subsequent extrusion. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of an extruder according to an embodiment of this application.

[0028] Figure 2 This is a flowchart of a method for controlling the extrusion of aluminum profiles in an embodiment of this application.

[0029] The parts referred to by the numbers in the above attached diagrams are as follows: 1. Machine body; 2. Transverse extrusion plate; 3. Transverse cylinder; 4. Longitudinal extrusion plate; 5. Longitudinal cylinder; 6. Feeding space; 7. Feed inlet; 8. Discharge outlet. Detailed Implementation

[0030] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0031] An extrusion press is disclosed in an embodiment of the present invention.

[0032] Reference Figure 1 An extruder includes a body 1, a transverse extrusion plate 2, a transverse cylinder 3, a longitudinal extrusion plate 4, and a longitudinal cylinder 5.

[0033] The machine body 1 has a feeding space 6. The feeding space 6 has a feed inlet 7, which serves as the entry channel for aluminum profiles. The feeding space 6 has a discharge outlet 8, which serves as the extrusion channel for aluminum profiles. A number of transverse extrusion plates 2 are laterally slidably connected within the feeding space 6, and are arranged along the length of the feeding space 6 to laterally extrude the material within the feeding space 6. Transverse cylinders 3 are installed on the side of the feeding space 6 away from the discharge outlet 8. The number of transverse cylinders 3 is the same as the number of transverse extrusion plates 2, and the piston rods of the transverse cylinders 3 are fixedly connected to the transverse extrusion plates 2 one-to-one to control the lateral movement of the transverse extrusion plates 2.

[0034] The longitudinal extrusion plate 4 is longitudinally slidably connected within the feeding space 6 to longitudinally extrude the material within the feeding space 6. The longitudinal cylinder 5 is installed at the bottom of the feeding space 6. The piston rod of the longitudinal cylinder 5 is fixedly connected to the longitudinal extrusion plate 4 to control the longitudinal movement of the longitudinal extrusion plate 4.

[0035] This invention discloses a method for controlling the extrusion process of an aluminum profile extruder. (Refer to...) Figure 2 A method for controlling the extrusion of aluminum profiles in an extrusion press includes: Step S1: In response to the feeding start signal, control the feeding port 7 to convey materials, and control the longitudinal extrusion plate 4 to rise to the preset lower edge height below the discharge port 8 and then stop rising to form the feeding space 6.

[0036] The feed start signal is the control signal that initiates the entire extrusion process. Feed inlet 7 is the channel through which the aluminum profile enters the feed space 6. The longitudinal extrusion plate 4 is an extrusion plate that can move up and down within the feed space 6, used for longitudinal extrusion or flattening of the material. The discharge port 8 is the channel through which the aluminum profile is extruded. The lower edge height refers to a reference height position below the discharge port 8. The feed space 6 is the space inside the extruder used to hold and extrude the material.

[0037] Step S2: Read the transverse pressure value through the pressure sensor preset on the transverse extrusion plate 2, and determine the extrusion plate number when the transverse pressure value is not 0 and the time when the number is generated, and define the extrusion plate number as the transverse extrusion plate number.

[0038] The extrusion plate number is a number assigned to the transverse extrusion plates based on their height, which can be in ascending order of height.

[0039] The transverse extrusion plates 2 refer to extrusion plates that can move left and right within the feeding space 6, and several are arranged along the length direction. Pressure sensors are installed on the transverse extrusion plates 2 to detect the pressure of the material on the extrusion plates. The transverse pressure value refers to the pressure value read by the pressure sensor. The transverse extrusion plate number is an identifier that distinguishes each transverse extrusion plate 2. The number generation time refers to the moment when a transverse extrusion plate 2 first detects a pressure value that is not 0. It is obtained by timing according to a timer.

[0040] Step S3: Calculate the numbering rate based on the transverse extrusion plate number and the numbering generation time.

[0041] The number generation rate refers to the rate of change in the number of transverse extrusion plates with non-zero pressure values ​​detected per unit time. The number generation rate is calculated by starting the timer from the generation of the first number, counting the number of newly generated numbers, and then dividing that number by the number generation time.

[0042] Step S4: Calculate the material infeed rate and the material extrusion rate equivalent to the material infeed rate based on the numbering rate, and calculate the extrusion plate pushing rate in combination with the preset feeding space size.

[0043] Material entry rate refers to the speed at which material enters the feeding space 6 through the feed inlet 7. Material extrusion rate refers to the speed at which material is extruded through the discharge outlet 8. Feeding space dimensions refer to the geometric dimensions of the feeding space 6, such as length, width, and bottom area. Extrusion plate pushing rate refers to the speed at which the transverse extrusion plate 2 moves back and forth during extrusion. The conversion method is as follows: after the material enters from the feed inlet 7, it sequentially contacts different numbered transverse extrusion plates 2. The faster the numbering rate, the faster the horizontal diffusion of the material, i.e., the higher the material entry rate. Here, the numbering rate is only related to the spatial geometry. If the material has high fluidity after entering the feeding space 6 and reaches a flowing state, it will form a cuboid. Therefore, the calculation method is as follows: first, calculate the amount of material corresponding to each number based on the height corresponding to each number and the feeding space dimensions; then, calculate the time to generate one number according to the numbering production rate; and finally, calculate the material rising speed based on the amount of material filling the height corresponding to the number and the generation time. The formula for converting the material entry rate into the extrusion plate pushing rate is as follows: , Where Q = material infeed rate, and A = preset bottom area of ​​feed space 6. =Extrusion plate pushing rate. If the fluidity is low and cannot reach the level of flowing water, it will appear as a bump. However, the shape and trend of the upper surface of the bump will not change as the material enters, so the added material is also equivalent to a cuboid and can be calculated as a cuboid.

[0044] Step S5: When the number of the transverse extrusion plate matches the preset discharge port number, control the transverse extrusion plate 2 corresponding to the discharge port number to move back and forth according to the extrusion plate pushing speed to extrude until it moves to the feed port 7 near the edge of the transverse extrusion plate 2 or the preset initial position.

[0045] The discharge port number refers to the transverse extrusion plate number corresponding to the height of discharge port 8. The transverse extrusion plate 2 corresponding to the discharge port number can push material of the same height into discharge port 8. Reciprocating movement refers to the back-and-forth movement of the transverse extrusion plate 2. The edge of the feed port 7 near the transverse extrusion plate 2 refers to the boundary position of the feed port 7 on one side of the transverse extrusion plate 2. The initial position refers to the original position of the transverse extrusion plate 2 before extrusion begins. It is measured by those skilled in the art based on the actual position of the transverse extrusion plate 5 in the feeding space when the transverse cylinder 3 retracts.

[0046] The steps preceding step S5 include: Step S50: While controlling the material conveying at the feed inlet 7, monitor the real-time material weight in the feed space 6.

[0047] Real-time material weight refers to the weight of the material in the feed space 6 at the current moment. It is obtained by weighing using a weight sensor.

[0048] Step S51: When the real-time material weight reaches the preset discharge port weight threshold, if the horizontal extrusion plate number is consistent with the preset discharge port number, then no other operation is performed and step S5 is executed.

[0049] The discharge port weight threshold refers to the material weight value that triggers the relevant operation at discharge port 8. When the real-time material weight reaches the preset discharge port weight threshold, if the horizontal extrusion plate number matches the preset discharge port number, it indicates that the material has fully filled the feeding space 6, and the front end of the material has just reached the position of discharge port 8, meeting the conditions for directly starting extrusion.

[0050] Step S52: When the real-time material weight reaches the preset inlet weight threshold, if the horizontal extrusion plate number and the preset outlet number are inconsistent, the material distribution map of the material in the inlet space 6 is obtained by the thermal scanner preset on the side of the inlet space 6.

[0051] The feed inlet weight threshold refers to the material weight value that triggers the relevant operation at feed inlet 7. A thermal scanner is a device installed on the side of the feed space 6 to acquire material distribution data. The material distribution map reflects the height distribution of materials within the feed space 6. Acquisition is achieved by directly reading the image from the thermal scanner. The material distribution map output by the thermal scanner is a height distribution data matrix of points on the material surface within the feed space 6. The height value of each data point in the height distribution data matrix is ​​compared with the ideal height, and points with height values ​​greater than the ideal height and spatially connected are classified as independent raised regions.

[0052] Step S53: Calculate the ideal volume based on the real-time material weight and the preset material density, and calculate the ideal height corresponding to the ideal volume based on the preset bottom area of ​​the feeding space 6.

[0053] Material density refers to the mass per unit volume of the aluminum profile. The material density is manually input based on the type of material entering the feeding space 6. Ideal volume refers to the volume of the material under real-time material weight and density. Base area refers to the area of ​​the bottom of the feeding space 6. Ideal height refers to the height of the material when it is uniformly distributed, corresponding to the ideal volume. The ideal volume is calculated as real-time material weight ÷ material density. The ideal height is calculated as ideal volume ÷ base area of ​​the feeding space 6.

[0054] Step S54: Based on the comparison between the material distribution map and the ideal height, the raised areas and low-lying areas are obtained.

[0055] A raised area refers to a localized region where the material height is higher than the ideal height. A lower area refers to a localized region where the material height is lower than the ideal height. The comparison method involves numerically comparing the actual material height with the ideal height at each location or region on the material distribution map to determine whether it is a raised area or a lower area.

[0056] Step S55: When the low-lying area is located on the side of the raised area close to the transverse extrusion plate 2, the height of the raised area is determined according to the raised area, and this height is defined as the raised height.

[0057] The protrusion height refers to the height of the protruding area. It is determined by filtering all existing heights within the protruding area and selecting the highest height. The purpose is to ensure that all protruding areas are pushed forward by the transverse extrusion plate.

[0058] Step S56: Determine the transverse extrusion plate number based on the protrusion height, and define the transverse extrusion plate number as the flattening number.

[0059] The paving number refers to the number of the transverse extrusion plate 2 used to perform the paving action. It is determined by first establishing a height range from the ideal height and the raised height, then checking if there is an overlap between this height range and the height range corresponding to the transverse extrusion plate number. If there is an overlap, the corresponding transverse extrusion plate number is output as the paving number.

[0060] Step S57: After controlling the longitudinal extrusion plate 4 to move down the raised height, control the transverse extrusion plate 2 corresponding to the flattening number to move to the edge of the raised area near the discharge port 8, raise the longitudinal extrusion plate 4 according to the raised height, and then control the transverse extrusion plate 2 corresponding to the flattening number to move to the initial position.

[0061] Step S58: When the low-lying area is located on the side of the raised area near the discharge port 8, control the horizontal extrusion plate 2 corresponding to the flattening number to move to the edge of the low-lying area near the discharge port 8.

[0062] This also includes: Step S540: When there are two low-lying areas and they are distributed on both sides of the raised area, control the longitudinal extrusion plate 4 to vibrate longitudinally according to the preset vibration control parameters.

[0063] Vibration control parameters refer to the parameters that control the longitudinal extrusion plate 4 to vibrate according to a certain pattern. Longitudinal vibration refers to the rapid movement of the longitudinal extrusion plate 4 in the vertical direction. Vibration control parameters include vibration frequency, vibration amplitude, and vibration waveform. The vibration frequency ranges from 5Hz to 30Hz, preferably from 10Hz to 20Hz. The vibration amplitude ranges from 1 / 10 to 1 / 3 of the height of the raised area. The vibration waveform is a sine wave, triangular wave, or square wave. These are set by those skilled in the art based on their experience. When the vibration frequency is below 5Hz, the kinetic energy gained by the aluminum profile material particles is insufficient to overcome the static friction between particles, making effective particle rearrangement and flow impossible. When the vibration frequency exceeds 30Hz, the aluminum profile material particles will violently jump due to excessive acceleration, easily causing cavitation or uneven packing density problems in the feeding space 6. When the amplitude is less than 1 / 10 of the height of the raised area, the vibration energy transmission range is limited, only affecting the shallow surface material of the raised area and unable to drive the bottom material to migrate to the low-lying area. When the amplitude exceeds 1 / 3 of the height of the raised area, the lifting amount of the longitudinal extrusion plate 4 is too large, causing the already leveled area to be disturbed again, forming a new high-low distribution. Therefore, limiting the amplitude to 1 / 10 to 1 / 3 of the height of the raised area can gradually transport the material in the raised area to the low-lying areas on both sides during the vibration period. When the raised area in the material distribution diagram presents a sharp peak shape, a square wave waveform with strong impact is preferred; when the raised area presents a gentle slope shape, a sine wave waveform with a smooth transition is preferred.

[0064] Step S541: Obtain the vibration duration while controlling the longitudinal extrusion plate 4 to vibrate longitudinally according to the preset vibration control parameters.

[0065] Vibration duration refers to the range of time during which the longitudinal extrusion plate 4 continuously vibrates. It is obtained by starting a timer while the longitudinal extrusion plate 4 is vibrating longitudinally according to preset vibration control parameters.

[0066] Step S542: When the vibration duration is less than the preset invalid duration, continue vibration.

[0067] The ineffective duration refers to a time threshold beyond which the basic vibration can no longer exert its effect. This threshold is pre-set by those skilled in the art. When the vibration duration is less than the ineffective duration, it indicates that the vibration still produces an effective effect, and therefore vibration can continue.

[0068] Step S543: When the vibration duration is equal to the preset invalid duration, the material distribution map obtained at this time is defined as the real-time material distribution map.

[0069] When the vibration duration equals the preset invalid duration, it means that continuing to vibrate will not have any effect, so we can start analyzing the real-time material distribution map.

[0070] Step S544: Determine whether there are still raised or low-lying areas in the material within the feeding space 6 based on the real-time material distribution map to obtain the judgment result.

[0071] The result of the judgment is whether there are still raised or low-lying areas. This is determined through a method that is equivalent to the method used to identify raised and low-lying areas, so it will not be elaborated upon here.

[0072] Step S545: Execute the preset processing plan based on the judgment result.

[0073] The processing plan refers to the operational procedures for different judgment results. The subsequent steps are disclosed and will not be elaborated here.

[0074] The methods for executing a preset processing plan based on the judgment result include: Step S5450: If there is a raised area or a low area, and the low area includes the low area on the discharge port side and the low area on the side of the feed port near the transverse extrusion plate, and the raised area is located between the two, calculate the range of the discharge port side leveling height required to fill the low area on the discharge port side based on the low area on the discharge port side, and determine the number of the discharge port side leveling extrusion plate.

[0075] The low-lying area on the discharge port side refers to the low-lying area located on the side of discharge port 8. The low-lying area on the side of the feed inlet near the transverse extrusion plate refers to the low-lying area located on the side of feed inlet 7 near the transverse extrusion plate 2. The leveling height range on the discharge port side refers to the material height required to fill the low-lying area on the discharge port side. The leveling extrusion plate number on the discharge port side refers to the number of the transverse extrusion plate 2 used to fill the low-lying area on the discharge port side. The method for determining this is similar to step S56 and will not be repeated here.

[0076] Step S5451: Calculate the difference between the height of the raised area and the height corresponding to the flattening height range on the discharge port side to obtain the remaining raised height.

[0077] The remaining height of the raised area refers to the height remaining after the material in the raised area has filled the low-lying area on the discharge port side. It is calculated by subtracting the height corresponding to the leveling height range on the discharge port side from the height of the raised area.

[0078] Step S5452: Determine the remaining extrusion plate number based on the remaining protrusion height and the flattening height range of the discharge port side.

[0079] The remaining extrusion plate number refers to the number of the transverse extrusion plate 2 used to process the remaining protruding material. The method for determining this number is similar to step S56 and will not be repeated here.

[0080] Step S5453: Control the transverse extrusion plate 2 corresponding to the number of the flat extrusion plate and the number of the remaining extrusion plate on the discharge port side to move to the edge of the discharge port side, and control the longitudinal extrusion plate 4 to rise to the remaining protrusion height.

[0081] Step S5454: Control the horizontal extrusion plate 2 corresponding to the number of the flat extrusion plate and the number of the remaining extrusion plate on the discharge port side to move to the initial position, and push the material with the remaining convex height to the low-lying area near the horizontal extrusion plate side of the feed port.

[0082] Step S5455: Control the longitudinal extrusion plate 4 to descend the remaining protrusion height.

[0083] The solutions for handling raised or low-lying areas also include: Step S54500: If there are raised or depressed areas, determine the depression height on the discharge port side based on the depression area on the discharge port side.

[0084] The discharge port side depression height refers to the height difference of the depression area on the discharge port side. The method for determining it is similar to step S56, and will not be repeated here.

[0085] Step S54501: Determine whether the low-lying height on the discharge port side is greater than the preset upper edge height of the discharge port 8.

[0086] The upper edge height refers to the height of the topmost part of the feed inlet 8. It is measured by a person skilled in the art within the feed space 6.

[0087] Step S54502: If so, control the longitudinal extrusion plate 4 to vibrate continuously without performing other operations.

[0088] Step S54503: If not, control the outlet 8 to be closed and execute steps S5450 to S5454.

[0089] Closing the discharge port 8 means temporarily closing the discharge port 8 to prevent material from being squeezed out.

[0090] Step S54504: When the height of the low-lying area is consistent with the height of the upper edge, reopen the discharge port 8 and control the transverse extrusion plate 2 corresponding to the discharge port number to perform extrusion.

[0091] The process of the transverse extrusion plate 2 reciprocating according to the extrusion plate pushing speed for extrusion also includes a method for adjusting the longitudinal extrusion plate 4, which includes: Step S54505: If there are no raised or low areas, obtain the current height of the material in the feeding space 6.

[0092] The current height refers to the actual height of the material within the feed space 6 at this moment. This height can be obtained by analyzing the material... Step S54506: If the current height is greater than the height of the upper edge, calculate the descent distance by subtracting the height of the upper edge from the current height.

[0093] The descent distance refers to the specific downward movement required of the longitudinal extrusion plate 4. It is calculated by subtracting the upper edge height from the current height.

[0094] Step S54507: Control the longitudinal extrusion plate 4 to descend according to the descent distance.

[0095] Step S54508: If the current height is less than the height of the upper edge, control the horizontal extrusion plate 2 that is performing the extrusion action to stop reciprocating, keep the feed port 7 open and the discharge port 8 closed until the real-time material weight reaches the preset discharge port weight threshold.

[0096] Step S54509: Control the transverse extrusion plate 2 to reciprocate and extrude according to the extrusion plate pushing speed.

[0097] This also includes: Step S54530: Obtain the extrusion plate number of the transverse extrusion plate 2 that is being extruded, and define this extrusion plate number as the current number.

[0098] Step S54531: Obtain the number of the horizontal extrusion plate above the current number within the feeding space 6, and define it as the adjacent number.

[0099] This is done by numbering. Higher numbers indicate larger values, and adjacent numbers are those with values ​​greater than the current number.

[0100] Step S54532: Control the transverse extrusion plate 2 corresponding to the adjacent number to move back and forth synchronously with the transverse extrusion plate 2 corresponding to the current number.

[0101] Synchronization refers to the simultaneous movement of multiple extrusion plates at the same rhythm.

[0102] Step S54533: Obtain the readings of the pressure sensors on the transverse extrusion plates 2 corresponding to adjacent numbers, and define them as adjacent transverse pressure values.

[0103] Step S54534: If the adjacent lateral pressure value is equal to the preset pressure threshold, then control the lateral extrusion plate 2 corresponding to the adjacent number and the lateral extrusion plate 2 corresponding to the current number to return directly to the initial position and continue to move back and forth.

[0104] The pressure threshold refers to the value at which the pressure sensor reading on the transverse extrusion plate 2 reaches, at which point the system considers the extrusion plate to have effectively compressed the material in front, and should stop advancing and return to the initial position. This value is set by those skilled in the art based on their experience.

[0105] This also includes: Step S54535: In response to the feeding end signal, control the feed inlet 7 to stop material conveying, close the discharge outlet 8, and control the longitudinal extrusion plate 4 to descend to the preset lower edge height below the feed inlet 7.

[0106] The feeding end signal is a control signal indicating that material feeding has been completed. The response can be made by manually pressing the corresponding stop button.

[0107] Step S54536: Determine the extrusion plate number above the lower edge opening height based on the lower edge opening height, define the extrusion plate number as a fixed number, and control the transverse extrusion plates 2 corresponding to the fixed number to move from their respective initial positions toward the discharge port 8. During the movement, the pressure value of the residual material is collected in real time by the pressure sensor on each transverse extrusion plate 2.

[0108] The fixed number refers to the number of the transverse extrusion plate located above the lower edge height. The initial position refers to the initial position corresponding to each transverse extrusion plate 2. The residual material pressure value refers to the pressure exerted by the material remaining in the feed space 6 after extrusion on the transverse extrusion plate 2.

[0109] Step S54537: If the residual material pressure value of the transverse extrusion plate 2 corresponding to the discharge port number is equal to the pressure threshold, then open the discharge port 8 and continue to move towards the discharge port 8 until the residual material pressure value of the transverse extrusion plate 2 corresponding to the fixed number is equal to the pressure threshold or the number of extrusion plate numbers corresponding to the residual material pressure value equal to the pressure threshold is less than the number of discharge port numbers.

[0110] Step S54538: If the number of extrusion plate numbers corresponding to the residual material pressure value equal to the pressure threshold is less than the number of discharge port numbers, then close the discharge port 8 and continue to control the transverse extrusion plates 2 corresponding to the fixed numbers to move from their respective initial positions toward the discharge port 8.

[0111] Step S54539: Repeat steps S54536 to S54538 until all the transverse extrusion plates 2 corresponding to the fixed numbers move to the discharge port 8.

[0112] This also includes: Step S545360: During the process of controlling the transverse extrusion plates 2 corresponding to the fixed numbers to move from their respective initial positions toward the discharge port 8, the residual material pressure value on the transverse extrusion plates 2 above the upper edge of the discharge port is obtained.

[0113] The transverse extrusion plates 2 above the upper edge of the discharge port refer to those transverse extrusion plates 2 located above the discharge port 8.

[0114] Step S545361: When no residual material pressure value is detected on the transverse extrusion plate 2 above the upper edge of the discharge port, control the transverse extrusion plate 2 to perform extrusion.

[0115] When no residual material pressure value is detected on the transverse extrusion plate 2 above the upper edge of the discharge port, it indicates that the pressure sensor reading is zero or below the detection limit.

[0116] Step S545362: When all the transverse extrusion plates 2 corresponding to the fixed numbers detect residual material pressure values, control the transverse extrusion plates 2 corresponding to the fixed numbers to retract until the transverse extrusion plates 2 above the upper edge of the discharge port can no longer detect residual material pressure values, and then extrusion is performed again.

[0117] Retraction refers to the retraction of the transverse extrusion plate 2 in the initial direction.

[0118] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A method for controlling the extrusion of aluminum profiles in an extrusion press, characterized in that, include: Step S1: In response to the feeding start signal, control the feeding port (7) to convey materials, and control the longitudinal extrusion plate (4) to rise to the preset lower edge height below the discharge port (8) and then stop rising to form a feeding space (6). Step S2: Read the transverse pressure value by using the pressure sensor preset on the transverse extrusion plate (2), and determine the extrusion plate number when the transverse pressure value is not 0 and the number generation time. Define the extrusion plate number as the transverse extrusion plate number. The extrusion plate number is the number of the transverse extrusion plate that has been sorted by height in advance. Step S3: Calculate the numbering rate based on the transverse extrusion plate number and the numbering generation time; Step S4: Calculate the material infeed rate and the material extrusion rate equivalent to the material infeed rate based on the number generation rate, and calculate the extrusion plate pushing rate in combination with the preset feeding space size. Step S5: When the number of the transverse extrusion plate is consistent with the preset discharge port number, control the transverse extrusion plate (2) corresponding to the discharge port number to move back and forth according to the extrusion plate pushing speed to extrude until it moves to the edge of the feed port near the transverse extrusion plate or the preset initial position.

2. The method for controlling the extrusion of aluminum profiles in an extrusion press according to claim 1, characterized in that, Step S5 includes the following: Step S50: While controlling the material conveying at the feed inlet (7), monitor the real-time material weight in the feed space (6); Step S51: When the real-time material weight reaches the preset discharge port weight threshold, if the horizontal extrusion plate number is consistent with the preset discharge port number, then no other operation is performed and step S5 is executed. Step S52: When the real-time material weight reaches the preset inlet weight threshold, if the horizontal extrusion plate number and the preset outlet number are inconsistent, the material distribution map of the material in the inlet space (6) is obtained by the thermal scanner preset on the side of the inlet space (6). Step S53: Calculate the ideal volume based on the real-time material weight and the preset material density, and calculate the ideal height corresponding to the ideal volume based on the preset bottom area of ​​the feeding space (6); Step S54: Based on the comparison between the material distribution map and the ideal height, the raised areas and low-lying areas are obtained; Step S55: When the low-lying area is located on the side of the raised area close to the transverse extrusion plate (2), the height of the raised area is determined according to the raised area, and the height is defined as the raised height; Step S56: Determine the transverse extrusion plate number based on the protrusion height, and define the transverse extrusion plate number as the flattening number; Step S57: After controlling the longitudinal extrusion plate (4) to move down the raised height, control the transverse extrusion plate (2) corresponding to the flattening number to move to the edge of the raised area near the discharge port (8), raise the longitudinal extrusion plate (4) according to the raised height, and then control the transverse extrusion plate (2) corresponding to the flattening number to move to the initial position. Step S58: When the low-lying area is located on the side of the raised area near the discharge port (8), control the horizontal extrusion plate (2) corresponding to the flattening number to move to the edge of the low-lying area near the discharge port (8).

3. The method for controlling the extrusion of aluminum profiles in an extrusion press according to claim 2, characterized in that, Also includes: Step S540: When there are two low-lying areas and they are distributed on both sides of the raised area, control the longitudinal extrusion plate (4) to vibrate longitudinally according to the preset vibration control parameters; Step S541: Obtain the vibration duration while controlling the longitudinal extrusion plate (4) to vibrate longitudinally according to the preset vibration control parameters; Step S542: When the vibration duration is less than the preset invalid duration, continue vibration; Step S543: When the vibration duration is equal to the preset invalid duration, the material distribution map obtained at this time is defined as the real-time material distribution map; Step S544: Determine whether there are still raised or low-lying areas in the material in the feeding space (6) based on the real-time material distribution map to obtain the judgment result; Step S545: Execute the preset processing plan based on the judgment result.

4. The method for controlling the extrusion of aluminum profiles in an extrusion press according to claim 3, characterized in that, The methods for executing a preset processing plan based on the judgment result include: Step S5450: If there is a raised area or a low area, and the low area includes the low area on the discharge port side and the low area on the side of the feed port near the transverse extrusion plate, and the raised area is located between the two, calculate the range of the discharge port side leveling height required to fill the low area on the discharge port side based on the low area on the discharge port side, and determine the number of the discharge port side leveling extrusion plate. Step S5451: Calculate the difference between the height of the raised area and the height corresponding to the flattening height range on the discharge port side to obtain the remaining raised height; Step S5452: Determine the remaining extrusion plate number based on the remaining protrusion height and the flattening height range on the discharge port side; Step S5453: Control the transverse extrusion plate (2) corresponding to the number of the flat extrusion plate and the number of the remaining extrusion plate on the discharge port side to move to the edge of the discharge port side, and control the longitudinal extrusion plate (4) to rise to the remaining protrusion height; Step S5454: Control the horizontal extrusion plate (2) corresponding to the number of the flat extrusion plate and the number of the remaining extrusion plate on the discharge port side to move to the initial position, and push the material with the remaining convex height to the low-lying area near the horizontal extrusion plate side of the feed port. Step S5455: Control the longitudinal extrusion plate (4) to lower the remaining protrusion height.

5. The method for controlling the extrusion of aluminum profiles in an extrusion press according to claim 4, characterized in that, If there are raised or low-lying areas, the treatment plan also includes: Step S54500: If there are raised or depressed areas, determine the depression height on the discharge port side based on the depression area on the discharge port side. Step S54501: Determine whether the low-lying height on the discharge port side is greater than the preset upper edge height of the discharge port (8); Step S54502: If so, control the longitudinal extrusion plate (4) to vibrate continuously without performing other operations; Step S54503: If not, control the outlet (8) to close and execute steps S5450 to S5454; Step S54504: When the height of the low-lying area is consistent with the height of the upper edge, reopen the discharge port (8) and control the transverse extrusion plate (2) corresponding to the discharge port number to extrude.

6. The method for controlling the extrusion of aluminum profiles in an extrusion press according to claim 5, characterized in that, During the extrusion process, the transverse extrusion plate (2) reciprocates according to the extrusion plate pushing speed, and the method also includes adjusting the longitudinal extrusion plate (4), which includes: Step S54505: If there is no raised or low area, obtain the current height of the material in the feeding space (6); Step S54506: If the current height is greater than the height of the upper edge, calculate the descent distance by subtracting the height of the upper edge from the current height; Step S54507: Control the longitudinal extrusion plate (4) to descend according to the descent distance; Step S54508: If the current height is less than the height of the upper edge, control the horizontal extrusion plate (2) that is performing the extrusion action to stop reciprocating, keep the feed port (7) open and the discharge port (8) closed until the real-time material weight reaches the preset discharge port (8) weight threshold. Step S54509: Control the transverse extrusion plate (2) again to reciprocate and extrude according to the extrusion plate pushing speed.

7. The method for controlling the extrusion of aluminum profiles in an extrusion press according to claim 4, characterized in that, Also includes: Step S54530: Obtain the extrusion plate number of the transverse extrusion plate (2) that is being extruded, and define the extrusion plate number as the current number; Step S54531: Obtain the number of the horizontal extrusion plate above the current number in the feeding space (6) and define it as the adjacent number; Step S54532: Control the transverse extrusion plate (2) corresponding to the adjacent number to move back and forth synchronously with the transverse extrusion plate (2) corresponding to the current number; Step S54533: Obtain the readings of the pressure sensors on the transverse extrusion plates (2) corresponding to adjacent numbers, and define them as adjacent transverse pressure values; Step S54534: If the adjacent lateral pressure value is equal to the preset pressure threshold, then control the lateral extrusion plate (2) corresponding to the adjacent number and the lateral extrusion plate (2) corresponding to the current number to return directly to the initial position and continue to move back and forth.

8. The method for controlling the extrusion of aluminum profiles in an extrusion press according to claim 7, characterized in that, Also includes: Step S54535: In response to the feeding end signal, control the feed inlet (7) to stop material conveying, close the discharge outlet (8), and control the longitudinal extrusion plate (4) to descend to the preset lower edge height below the feed inlet (7); Step S54536: Determine the extrusion plate number above the lower edge opening height according to the lower edge opening height, define the extrusion plate number as a fixed number, control the transverse extrusion plate (2) corresponding to the fixed number to move from their respective initial positions toward the discharge port (8), and during the movement, collect the residual material pressure value in real time through the pressure sensor on each transverse extrusion plate (2); Step S54537: If the residual material pressure value of the transverse extrusion plate (2) corresponding to the outlet number is equal to the pressure threshold, then open the outlet (8) and continue to move towards the outlet (8) until the residual material pressure value of the transverse extrusion plate (2) corresponding to the fixed number is equal to the pressure threshold or the number of extrusion plate numbers corresponding to the residual material pressure value equal to the pressure threshold is less than the number of outlet numbers. Step S54538: If the number of extrusion plate numbers corresponding to the residual material pressure value equal to the pressure threshold is less than the number of discharge port numbers, then close the discharge port (8) and continue to control the transverse extrusion plates (2) corresponding to the fixed numbers to move from their respective initial positions toward the discharge port (8); Step S54539: Repeat steps S54536 to S54538 until all the transverse extrusion plates (2) corresponding to the fixed numbers move to the discharge port (8).

9. A method for controlling the extrusion of aluminum profiles in an extrusion press according to claim 8, characterized in that, Also includes: Step S545360: During the process of controlling the transverse extrusion plates (2) corresponding to the fixed numbers to move from their respective initial positions toward the discharge port (8), the residual material pressure value on the transverse extrusion plates (2) above the upper edge of the discharge port is obtained; Step S545361: When no residual material pressure value is detected on the transverse extrusion plate (2) above the upper edge of the discharge port, control the transverse extrusion plate (2) to extrude. Step S545362: When all the transverse extrusion plates (2) corresponding to the fixed number detect residual material pressure values, control the transverse extrusion plates (2) corresponding to the fixed number to retract until the transverse extrusion plates (2) above the upper edge of the discharge port can no longer detect residual material pressure values, and then extrusion is performed again.

10. An extrusion press, employing a method for controlling the extrusion of aluminum profiles as described in any one of claims 1 to 9, characterized in that, include: The machine body (1) is provided with a feeding space (6), the feeding space (6) is provided with a feed port (7) as an entry channel for aluminum profiles, and the feeding space (6) is provided with a discharge port (8) as an extrusion channel for aluminum profiles. A transverse extrusion plate (2) is transversely slidably connected to the feeding space (6). Several transverse extrusion plates (2) are provided along the length of the feeding space (6) for transversely extruding the material in the feeding space (6). A transverse cylinder (3) is located on the side of the feeding space (6) away from the discharge port (8). The number of transverse cylinders (3) is the same as that of the transverse extrusion plate (2). The piston rods of the transverse cylinders (3) are fixedly connected to the transverse extrusion plate (2) in a one-to-one correspondence to control the transverse extrusion plate (2) to move laterally. The longitudinal extrusion plate (4) is longitudinally slidably connected to the feeding space (6) and is used to longitudinally extrude the material in the feeding space (6); A longitudinal cylinder (5) is located at the bottom of the feeding space (6). The piston rod of the longitudinal cylinder (5) is fixedly connected to the longitudinal extrusion plate (4) to control the longitudinal movement of the longitudinal extrusion plate (4).

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