Extrusion forming device and aluminum profile extrusion forming method

Abstract

The invention relates to the technical field of aluminum profile extrusion forming, and discloses an extrusion forming device and an aluminum profile extrusion forming method.The extrusion forming device comprises a machine body, an air cylinder is fixedly installed at one end of the machine body, a mold is fixedly installed at the other end of the machine body, and a connecting disc is fixedly installed on an output shaft of the air cylinder. Through the driving motor, the driving motor drives the output shaft at the output end to rotate, the rotating gear at the other end of the output shaft rotates along with the output shaft, the rotating gear can drive the fixed gear to rotate around the central axis of the connecting disc, then the fixed gear drives the mounting disc to rotate, and through rotation of the mounting disc, the mounting disc is driven to rotate; the mounting disc drives the push rod to rotate, and when the push rod rotates at the end part of an aluminum profile to be formed, the push rod generates relative motion on the contact surface, so that the adhesion between a blank and the push rod is avoided, a good condition is provided for next extrusion operation, and the smooth extrusion process and the forming quality of the aluminum profile are guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of aluminum profile extrusion molding, in particular to an extrusion molding device and an aluminum profile extrusion molding method. Background Art

[0002] In the field of aluminum profile production, extrusion molding is a key processing technology, and the extrusion molding device plays a vital role in it. The core function of the extrusion molding device is to process the aluminum billet into aluminum profiles with specific shapes and sizes. Its working process is to apply huge pressure to the aluminum billet, so that the billet undergoes plastic deformation under the constraint of the die, thereby extruding profiles that meet the design requirements. For many industries such as construction, automobiles, and aerospace, the quality and precision of aluminum profiles are crucial. For example, aluminum window frames and curtain wall frames used in the construction industry require precise shapes and good structural strength; aluminum parts in the automotive industry have extremely high requirements for their dimensional accuracy and mechanical properties.

[0003] Chinese patent CN117066297B discloses an aluminum profile extrusion molding machine, comprising a machine base, a hydraulic press, a molding mechanism and an extrusion assembly; the hydraulic press is installed at the rear end of the machine base, and the extrusion assembly with a shift fork arranged inside is installed at one end of the hydraulic press close to the machine base, and the shift fork moves in a groove provided in the extrusion assembly, thereby the middle part of the extrusion assembly is extended, and the extended part pushes the residual material in the molding mechanism; the present invention further extrude the space residual material of the internal transition cavity by rotating the telescopic rod by arranging the molding mechanism and the extrusion assembly, so as to ensure that the residual material in the dead corner is removed in place, thereby solving the problem that the residual material in the mold cannot be completely removed by direct extrusion in the prior art, which will delay the work efficiency.

[0004] In the above patent, the end of the telescopic rod is in contact with the residual material, so as to apply a force not exceeding the tear strength to the residual material, and cooperate with the external traction force to apply the force to the residual material. The external traction force is the force applied by the device used to pull the extruded aluminum profile externally during extrusion in the prior art, so that the residual material can be discharged as a whole without being torn.

[0005] In actual applications, the external traction force is applied to pull the aluminum profile after the blank is formed by the die and separated from the die. Since the aluminum profile needs to have the characteristics of high-temperature physical deformation during forming, if the formed aluminum profile is pulled out of the die by external traction, the aluminum profile in the die will break due to the friction between the aluminum profile and the die, so the aluminum profile blocks the forming cavity of the die. In addition, due to the characteristics of high-temperature physical deformation of the aluminum profile, the push rod and the aluminum profile will be bonded during the extrusion process. During repeated bonding and forced separation, the surface of the push rod will be damaged, resulting in a decrease in the accuracy of the push rod. The reduction in the accuracy of the push rod will further affect the uniformity of force transmission during the extrusion process, thereby causing quality problems in the aluminum profile during the forming process.

[0006] Currently, no effective solution has been proposed for the problems in the related technologies. Summary of the invention

[0007] 1. Technical issues to be solved

[0008] In view of the deficiencies in the prior art, the present invention provides an extrusion molding device and an aluminum profile extrusion molding method, which have the advantages that the aluminum profile can be completely and smoothly separated from the mold, thereby solving the problem of the aluminum profile blocking the molding cavity of the mold.

[0009] (II) Technical solution

[0010] In order to solve the technical problem that the aluminum profile blocks the molding cavity of the mold, the present invention provides the following technical solution:

[0011] An extrusion molding device and an aluminum profile extrusion molding method, comprising a machine body, a cylinder is fixedly mounted on one end of the machine body, a mold is fixedly mounted on the other end, a connecting plate is fixedly mounted on the output shaft of the cylinder, an extrusion tool is connected to the connecting plate, a guide assembly is arranged between the extrusion tool and the mold, the cylinder output end drives the blank to pass through the mold under the guidance of the guide assembly to form an aluminum profile, and a trigger rod is arranged on one side of the guide assembly;

[0012] The extrusion tooling comprises a mounting plate, an ejection mechanism is slidably mounted in the inner cavity of the connecting plate along the central axis direction of the cylinder output end, an ejection head is detachably mounted on one end of the ejection mechanism, and the shape and size of the ejection head are consistent with those of the aluminum profile; a push rod is fixedly mounted on the middle of one side of the mounting plate away from the connecting plate, the ejection head is located inside the push rod, and the two sides in contact with the blank are kept flush, so that the two can extrude the blank together to advance;

[0013] A locking mechanism is slidably mounted on the mounting disk along the central axis of the cylinder output end. When the ejector head and the push rod extrude the blank until the two are in contact with the end surface of the mold, the trigger rod squeezes the locking mechanism to slide relative to the mounting disk, so that the locking mechanism is engaged with the ejector mechanism for synchronous rotation of the mounting disk and the ejector mechanism. A driving assembly is fixedly mounted on the connecting disk, and the driving assembly is used to drive the mounting disk to rotate around the central axis of the cylinder output end, so as to synchronously drive the ejector mechanism to operate through the locking mechanism, so that the ejector head is displaced relative to the push rod to extrude the residual material in the mold. A sensor is provided at the engagement point between the locking mechanism and the ejector mechanism, and the sensor is used to determine whether the locking mechanism and the ejector mechanism are engaged, and the engagement causes the driving assembly to rotate.

[0014] Preferably, the driving assembly comprises a driving motor, the driving motor is fixedly mounted on the connecting disk, and an output shaft is fixedly mounted on the output end of the driving motor.

[0015] Preferably, a rotating gear is fixedly mounted on the other end of the output shaft, one end of the rotating gear is meshed with a fixed gear, one end of the fixed gear is rotatably mounted on the connecting disk, and the other end is fixedly mounted on the mounting disk.

[0016] Preferably, the locking mechanism comprises a plurality of snap-in blocks, and the plurality of snap-in blocks are all slidably mounted on the mounting plate, a connecting plate is fixedly mounted on one end of the snap-in blocks close to the trigger rod, and a plurality of rolling balls are arranged in a circular array on one end of the connecting plate close to the trigger rod.

[0017] Preferably, a connecting block is fixedly mounted on the outer wall of the clamping block, a tension spring is fixedly mounted on one end of the connecting block, and the other end of the tension spring is fixedly mounted on the inner wall of the mounting plate.

[0018] Preferably, the ejection mechanism comprises a clamping plate, the clamping plate is located in the inner cavity of the mounting plate, a clamping groove for clamping with the clamping block is formed on the clamping plate, and the sensor is installed on a side of the clamping groove away from the clamping block.

[0019] Preferably, a threaded rod is threadedly installed on the clamping disk and along the central axis direction of the cylinder output end, a sliding rod is fixedly installed on one end of the threaded rod close to the connecting disk, the sliding rod is slidably installed with the connecting disk, and a mounting plate is fixedly installed on the other end of the threaded rod.

[0020] Preferably, a screw head is fixedly mounted on one end of the ejector head, which can be used to remove and install the ejector head on the mounting plate, and the screw head is threadedly mounted on the mounting plate.

[0021] Preferably, one end of the push rod away from the mounting plate is bearing-connected to a fixing plate, and a sliding groove cooperating with the ejecting head is formed on the fixing plate.

[0022] An extrusion molding device and an aluminum profile extrusion molding method,

[0023] S1: The cylinder output shaft pushes the connecting plate, the mounting plate, the ejector head and the push rod to move in a straight line. The end face of the push rod contacts the blank and pushes the blank into the guide assembly, and continuously passes through the mold along the guidance of the guide assembly to form a profile.

[0024] S2: With the movement of the mounting plate, the mounting plate drives the clamping block, the connecting plate, the rolling ball, the connecting block and the tension spring to move. When the ejector head and the push rod extrude the blank until they are about to fit with the end surface of the mold, the multiple rolling balls at this time will first contact the trigger rod, and the movement of the multiple rolling balls will be restricted, and the multiple rolling balls will no longer move. Then, with the movement of the mounting plate, the travel amount of the multiple rolling balls is less than the travel amount of the push rod and the mounting plate. With the movement of the mounting plate, the clamping block slides along the mounting plate. When the ejector head and the push rod extrude the blank until they are about to fit with the end surface of the mold, the clamping block will be clamped with the clamping groove on the clamping plate. When the clamping block is fully inserted into the clamping groove, the sensor will be triggered, and the sensor will output a switch signal. This signal is used to control the start or stop of the drive motor.

[0025] S3: Start the drive motor, which will drive the output shaft at the output end to rotate. The rotating gear at the other end of the output shaft will rotate with the output shaft. The rotating gear will drive the fixed gear to rotate around the central axis of the connecting disk. Then the fixed gear will drive the mounting disk to rotate. Through the rotation of the mounting disk, the mounting disk will drive the push rod to rotate. When the push rod rotates at the end of the aluminum profile to be formed, relative movement will occur on the contact surface, thereby avoiding adhesion between the blank and the push rod.

[0026] S4: When the clamping plate rotates driven by the mounting plate, the clamping plate will drive the threaded rod to move, and the mounting plate at the other end of the threaded rod will also make linear motion with the threaded rod. The linear motion of the mounting plate is used for ejection to squeeze out the excess material in the mold.

[0027] (III) Beneficial effects

[0028] Compared with the prior art, the present invention provides an extrusion molding device and an aluminum profile extrusion molding method, which have the following beneficial effects:

[0029] 1. The present invention drives the output shaft at the output end to rotate by a driving motor, and the rotating gear at the other end of the output shaft rotates together with the output shaft. The rotating gear drives the fixed gear to rotate around the central axis of the connecting disk, and then the fixed gear drives the mounting disk to rotate. The mounting disk drives the push rod to rotate through the rotation of the mounting disk. When the push rod rotates at the end of the aluminum profile to be formed, relative movement occurs on the contact surface, thereby avoiding the adhesion between the blank and the push rod, and providing good conditions for the next extrusion operation, thereby ensuring the smooth progress of the extrusion process and the forming quality of the aluminum profile.

[0030] 2. The present invention rotates the clamping plate driven by the mounting plate, and then the clamping plate drives the threaded rod to move, and the mounting plate at the other end of the threaded rod also makes linear motion with the threaded rod. The linear motion of the mounting plate is used for ejection to squeeze out the excess material in the mold, thereby ensuring that the aluminum profile can be completely and smoothly separated from the mold, ensuring the cleanliness of the mold and the normal progress of subsequent processing, and avoiding the problem of breakage caused by friction when the profile is pulled out by external traction after forming in the traditional method. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a three-dimensional structural diagram of the present invention;

[0032] Figure 2 It is a schematic diagram of the body of the present invention;

[0033] Figure 3 A schematic diagram of a trigger lever of the present invention;

[0034] Figure 4 It is a partial schematic diagram of the connection disk of the present invention;

[0035] Figure 5 It is a schematic diagram of the locking mechanism and the ejection mechanism of the present invention;

[0036] Figure 6 It is a schematic diagram of the driving motor of the present invention;

[0037] Figure 7 It is a schematic diagram of the rotating gear of the present invention;

[0038] Figure 8 It is an overall schematic diagram of the locking mechanism of the present invention;

[0039] Fig. 9 It is a schematic diagram of the ejector head and the screw head of the present invention;

[0040] Fig.10 It is an overall schematic diagram of the ejection mechanism of the present invention;

[0041] Fig.11 It is a schematic diagram of the sensor and the card plate of the present invention.

[0042] In the figure: 1. body; 2. cylinder; 3. mold; 4. connecting plate; 5. extrusion tooling; 501. mounting plate; 6. guide assembly; 601. trigger rod; 7. ejection mechanism; 701. clamping plate; 702. threaded rod; 703. sliding rod; 704. mounting plate; 8. ejection head; 801. screw head; 9. push rod; 901. fixing plate; 10. locking mechanism; 1001. clamping block; 1002. connecting plate; 1003. rolling ball; 1004. connecting block; 1005. tension spring; 11. driving assembly; 1101. driving motor; 1102. output shaft; 1103. rotating gear; 1104. fixing gear; 12. sensor. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0044] As introduced in the background technology, there are deficiencies in the prior art. In order to solve the above technical problems, the present application proposes an extrusion molding device and an aluminum profile extrusion molding method.

[0045] See also Figure 1-11 An extrusion molding device and an aluminum profile extrusion molding method include a body 1, a cylinder 2 is fixedly installed at one end of the body 1, and a mold 3 is fixedly installed at the other end. A connecting plate 4 is fixedly installed on the output shaft of the cylinder 2, and an extrusion tool 5 is connected to the connecting plate 4. A guide component 6 is arranged between the extrusion tool 5 and the mold 3. The output end of the cylinder 2 drives the blank to pass through the mold 3 under the guidance of the guide component 6 to form an aluminum profile.

[0046] The body 1 supports the entire device, and the cylinder 2 at one end is the power source. When the cylinder 2 is started, its output shaft will move linearly. The connecting plate 4 fixedly installed on the output shaft will move with the output shaft, and the extrusion tooling 5 connected to the connecting plate 4 will also move accordingly. The guide assembly 6 set between the extrusion tooling 5 and the mold 3 plays a key guiding role. When the cylinder 2 works and pushes the connecting plate 4 and the extrusion tooling 5 to move forward, the blank placed between the extrusion tooling 5 and the mold 3 will move toward the direction of the mold 3 under the guidance of the guide assembly 6. The placement of the blank is generally a blank holder with a semicircular top, and the bottoms of the two blank holders are installed on the body 1. The blank holder can be in a variety of forms, such as a simple metal frame structure, which is used to place and support the blank, so that the blank and the guide port of the guide assembly 6 are kept on the same horizontal line, which is convenient for subsequent processing operations (the blank holder is a prior art and is not drawn in the figure). Since the die 3 has a specific shape, the blank passes through the die 3 under the thrust of the output end of the cylinder 2. In this process, the blank is extruded into an aluminum profile with a specific shape by the die 3. This method of providing power through the cylinder, ensuring the correct direction of the blank by the guide assembly 6, and forming with the help of the die realizes the processing process from the blank to the aluminum profile.

[0047] Furthermore, for the above-mentioned guide assembly 6, a trigger rod 601 is provided on one side of the guide assembly 6, the extrusion tooling 5 includes a mounting plate 501, and an ejection mechanism 7 is slidably installed in the inner cavity of the connecting plate 4 along the central axis direction of the output end of the cylinder 2, and an ejection head 8 is detachably installed at one end of the ejection mechanism 7, and the shape and size of the ejection head 8 are consistent with the shape and size of the aluminum profile; a push rod 9 is fixedly installed in the middle of one side of the mounting plate 501 away from the connecting plate 4, and the ejection head 8 is located in the push rod 9, and the sides of the two that are in contact with the blank are kept flush, so that the two can extrude the blank together.

[0048] A locking mechanism 10 is slidably mounted on the mounting disk 501 along the central axis direction of the output end of the cylinder 2. When the ejector head 8 and the push rod 9 extrude the blank until the two are in contact with the end surface of the mold 3, the trigger rod 601 squeezes the locking mechanism 10 to slide relative to the mounting disk 501, so that the locking mechanism 10 is engaged with the ejector mechanism 7 for synchronous rotation of the mounting disk 501 and the ejector mechanism 7. A driving assembly 11 is fixedly mounted on the connecting disk 4. The driving assembly 11 is used to drive the mounting disk 501 to rotate around the central axis of the output end of the cylinder 2, so as to synchronously drive the ejector mechanism 7 to operate through the locking mechanism 10, so that the ejector head 8 is displaced relative to the push rod 9 to extrude the residual material in the mold 3. A sensor 12 is provided at the engagement between the locking mechanism 10 and the ejector mechanism 7. The sensor 12 is used to determine whether the locking mechanism 10 is engaged with the ejector mechanism 7, and the engagement activates the rotation of the driving assembly 11.

[0049] First, with the start of the cylinder 2, the output shaft of the cylinder 2 pushes the connecting disk 4, the mounting disk 501, the ejector head 8 and the push rod 9 to move in a straight line. The end face of the push rod 9 contacts the blank and pushes the blank into the guide assembly 6, and continuously passes through the mold 3 along the guidance of the guide assembly 6 to form a profile. In order to avoid the adhesion of the blank on the push rod 9, in the process of the push rod 9 pushing the blank, the cylinder 2 will also push the locking mechanism 10 on the mounting disk 501 to move. The locking mechanism 10 will first contact the trigger rod 601. At this time, the locking mechanism 10 will no longer move. As the mounting disk 501 continues to drive the locking mechanism 10 to move, the travel amount of the locking mechanism 10 close to the mold 3 in the horizontal direction will be less than the travel amount of the push rod 9 and the mounting disk 501, and it will gradually approach the locking mechanism 10 and the trigger sensor 12. During the movement, when the ejector head 8 and the push rod 9 squeeze the blank until the two are in contact with the mold, When the end faces of the tool 3 are fitted, the locking mechanism 10 is engaged with the ejection mechanism 7, and the sensor 12 is used to monitor in real time whether the locking mechanism 10 and the ejection mechanism 7 are in an engaged state. The side of the locking mechanism 10 close to the sensor 12 is made of metal material. The sensor here can be a proximity sensor. The proximity sensor is a non-contact sensor, which is mainly used to detect parameters such as the position and distance of an object. Its working principle is based on electromagnetic induction. It senses the approach of an object by detecting the eddy current generated when a metal object approaches, and converts this information into a switch signal (the proximity sensor is a prior art and will not be described in detail here). When the metal surface of the locking mechanism 10 is detected to be approaching, the proximity sensor will output a switch signal, which is used to control the start or stop of the drive component 11, and transmit the switch signal to the drive component 11. The drive component 11 starts to rotate after receiving the signal;

[0050] Secondly, the driving component 11 starts to rotate after receiving the signal, and the rotation of the driving component 11 will drive the mounting plate 501 to rotate, and then the mounting plate 501 drives the push rod 9 to rotate, and the mounting plate 501 will also drive the locking mechanism 10 to rotate on the contact surface of the trigger rod 601. When the push rod 9 rotates at the end of the aluminum profile to be formed, a relative movement will be generated on the contact surface. This relative movement can effectively destroy the interface conditions for forming a bond between the push rod 9 and the blank, thereby avoiding the adhesion between the blank and the push rod 9, and also providing good conditions for the next extrusion operation, ensuring the smooth progress of the extrusion process and the forming quality of the aluminum profile;

[0051] Finally, since the locking mechanism 10 and the ejection mechanism 7 are in a clamping state, the rotation of the locking mechanism 10 will drive the ejection mechanism 7 to rotate synchronously. Since the ejection mechanism 7 and the connecting plate 4 are slidably installed, the rotation of the ejection mechanism 7 will cause a part of its components to move along the inner cavity of the connecting plate 4 toward the direction of the mold 3. One end of the ejection mechanism 7 is detachably installed with an ejection head 8, and the shape and size of the ejection head 8 are consistent with the shape and size of the profile. During the movement, the ejection mechanism 7 pushes the ejection head 8 to move linearly toward the mold 3 for ejection. Since the shape of the ejection head 8 is adapted to the aluminum profile, it accurately fits the end of the aluminum profile to be formed, playing an auxiliary pushing role. With the push of the ejection head 8, the aluminum profile to be formed will form an aluminum profile in the forming groove of the mold 3. With the movement of the ejection mechanism 7, the ejection head 8 will enter the forming groove of the mold 3, squeeze out the excess material in the mold 3, and ensure that the aluminum profile can be completely and smoothly separated from the mold 3, ensuring the cleaning inside the mold 3 and the normal subsequent processing. This avoids problems such as breakage caused by friction when the profile is pulled out by external traction after forming in the traditional method.

[0052] Furthermore, for the above-mentioned driving component 11, the driving component 11 includes a driving motor 1101, the driving motor 1101 is fixedly mounted on the connecting disk 4, and an output shaft 1102 is fixedly mounted on the output end of the driving motor 1101.

[0053] A rotating gear 1103 is fixedly mounted on the other end of the output shaft 1102 . A fixed gear 1104 is meshed at one end of the rotating gear 1103 . One end of the fixed gear 1104 is rotatably mounted on the connecting disk 4 , and the other end is fixedly mounted on the mounting disk 501 .

[0054] In the above description, the sensor 12 generates a switch signal, and this signal is used to control the start or stop of the drive motor 1101. At this time, the drive motor 1101 is started, and the drive motor 1101 will drive the output shaft 1102 fixedly installed at the output end to rotate along with the operation of the drive motor 1101. The rotating gear 1103 fixedly installed at the other end of the output shaft 1102 rotates together with the output shaft 1102, and the rotating gear 1103 is meshed with the fixed gear 1104. When the rotating gear 1103 rotates, it will drive the fixed gear 1104 to rotate. One end of the fixed gear 1104 is rotatably installed with the connecting disk 4, so that It can be ensured that the fixed gear 1104 can rotate around the central axis of the connecting disk 4, and the other end of the fixed gear 1104 is fixedly installed on the mounting disk 501, so when the fixed gear 1104 rotates under the drive of the rotating gear 1103, the mounting disk 501 will also rotate accordingly. When the ejector head 8 and the push rod 9 extrude the blank until both are in contact with the end surface of the mold 3, the mounting disk 501 rotates and the mounting disk 501 drives the fixed push rod 9 to rotate. When the push rod 9 rotates at the end of the aluminum profile to be formed, relative movement is generated on the contact surface, thereby avoiding the adhesion between the blank and the push rod 9.

[0055] Furthermore, for the above-mentioned locking mechanism 10, the locking mechanism 10 includes a plurality of snap-in blocks 1001, and the plurality of snap-in blocks 1001 are all slidably mounted on the mounting plate 501, and a connecting plate 1002 is fixedly mounted on one end of the plurality of snap-in blocks 1001 close to the trigger rod 601, and a plurality of rolling balls 1003 are arranged in a circular array on one end of the connecting plate 1002 close to the trigger rod 601.

[0056] Furthermore, for the above-mentioned clamping block 1001 , a connecting block 1004 is fixedly mounted on the outer wall of the clamping block 1001 , a tension spring 1005 is fixedly mounted on one end of the connecting block 1004 , and the other end of the tension spring 1005 is fixedly mounted on the inner wall of the mounting plate 501 .

[0057] When the plurality of rolling balls 1003 are not in contact with the trigger rod 601, the clamping block 1001 is kept in the initial position under the tension of the tension spring 1005. One end of the tension spring 1005 is connected to the inner wall of the mounting plate 501, and the other end is connected to the clamping block 1001 through the connecting block 1004, so that the clamping block 1001 will not slide at will. In this state, the clamping block 1001 and the ejection mechanism 7 are in an unclamped state, and the multiple rolling balls 1003 installed on the connecting plate 1002 are also in the initial position. The existence of the rolling balls 1003 is to reduce the friction between the connecting plate 1002 and the trigger rod 601 during the rotation process, so that the rotation of the connecting plate 1002 is smoother. With the movement of the mounting plate 501, the mounting plate 501 will drive the clamping block 1001, the connecting plate 1002, the rolling balls 1003, the connecting block 1004, and the tension spring 1005 to move. When the ejection head 8 and the push rod 9 extrude the blank until the two are about to fit with the end surface of the mold 3, At this time, the multiple rolling balls 1003 will first contact the trigger rod 601 on one side of the guide assembly 6, and the movement of the multiple rolling balls 1003 will be restricted. The multiple rolling balls 1003 will no longer move, and with the movement of the mounting plate 501, the travel amount of the multiple rolling balls 1003 is smaller than the travel amount of the push rod 9 and the mounting plate 501. Since the rolling balls 1003 are installed on the connecting plate 1002, the clamping block 1001 is fixedly installed with the connecting plate 1002, and then with the movement of the mounting plate 501, the clamping block 1001 will slide along the mounting plate 501. At this time, the tension spring 1005 is stretched to store elastic potential energy.

[0058] When the ejector head 8 and the push rod 9 extrude the blank until both fit with the end surface of the mold 3, the clamping block 1001 will be clamped with the ejector mechanism 7, and its shape and structure can form a tight connection with the ejector mechanism 7, thereby realizing the synchronous rotation of the mounting plate 501 and the ejector mechanism 7.

[0059] Furthermore, for the above-mentioned ejection mechanism 7, the ejection mechanism 7 includes a snap-in plate 701, the snap-in plate 701 is located in the inner cavity of the mounting plate 501, and a snap-in groove for snapping with the snap-in block 1001 is opened on the snap-in plate 701, and the sensor 12 is installed on the side of the snap-in groove away from the snap-in block 1001.

[0060] A threaded rod 702 is threadedly installed on the clamping plate 701 and along the central axis direction of the output end of the cylinder 2. A sliding rod 703 is fixedly installed on one end of the threaded rod 702 close to the connecting plate 4. The sliding rod 703 is slidably installed with the connecting plate 4. A mounting plate 704 is fixedly installed on the other end of the threaded rod 702.

[0061] When the ejector head 8 and the push rod 9 extrude the blank until the two are in contact with the end surface of the mold 3, the clamping block 1001 will be clamped with the clamping groove on the clamping plate 701, and the mounting plate 501 and the clamping plate 701 can be connected together. The sensor 12 is installed on the side of the clamping groove away from the clamping block 1001. The side of the clamping block 1001 close to the sensor 12 is made of metal material. The sensor here can be a proximity sensor. The specific working principle of the proximity sensor has been introduced above. When the clamping block 1001 is fully inserted into the clamping groove, the sensor 12 will be triggered, and the sensor 12 will output a switch signal. This signal is used to control the start or stop of the drive motor 1101. When the electrical signal is output, it indicates that the clamping action has been completed.

[0062] When the clamping plate 701 rotates driven by the mounting plate 501, since the threaded rod 702 is threadedly connected to the clamping plate 701, a sliding rod 703 is fixedly installed at one end of the threaded rod 702 close to the connecting plate 4, and the sliding rod 703 is slidably installed with the connecting plate 4. In this way, the threaded rod 702 is limited to only move linearly along the central axis of the connecting plate 4, preventing it from rotating with the clamping plate 701. The mounting plate 704 fixedly installed at the other end of the threaded rod 702 will also move linearly with the threaded rod 702. The linear motion of the mounting plate 704 is used for ejection to squeeze out the excess material in the mold 3. Since the shape of the ejector head 8 is mutually compatible with the aluminum profile, it can precisely fit the end of the profile to be formed, thereby playing the role of auxiliary pushing. Under this effect, the profile can be completely and smoothly separated from the mold 3, effectively avoiding the aluminum profile from breaking due to friction when it is pulled out by external traction after forming.

[0063] Furthermore, for the ejector head 8 , a screw head 801 is fixedly mounted on one end of the ejector head 8 , which can remove and install the ejector head 8 on the mounting plate 704 , and the screw head 801 is threadedly mounted on the mounting plate 704 .

[0064] The end of the push rod 9 away from the mounting plate 501 is connected to a fixing plate 901 by a bearing. The fixing plate 901 is provided with a sliding groove that cooperates with the ejector head 8 .

[0065] First, the screw head 801 at one end of the ejector head 8 is connected to the mounting plate 704 by threaded mounting. This allows the ejector head 8 to be firmly mounted on the mounting plate 704. During installation, align the screw head 801 with the threaded hole on the mounting plate 704, and by rotating the ejector head 8, the screw head 801 will gradually be screwed into the threaded hole until the ejector head 8 is fixed on the mounting plate 704;

[0066] Secondly, when it is necessary to replace the ejector head 8 with a different shape or size (for example, for processing different profiles or when the ejector head 8 is damaged), this threaded connection method is convenient for disassembly. Simply rotate the ejector head 8 in the opposite direction to screw the screw head 801 out of the threaded hole of the mounting plate 704, thereby removing the ejector head 8;

[0067] Again, the end of the push rod 9 away from the mounting plate 501 is connected to the fixed plate 901 through a bearing. The bearing connection allows the push rod 9 to rotate relative to the fixed plate 901. During operation, when the push rod 9 rotates with the movement of the mounting plate 501, the bearing can ensure smooth relative movement between the push rod 9 and the fixed plate 901, reducing friction. In addition, when replacing the ejector head 8, the ejector head 8 is fixed to the mounting plate 704 before installing the fixed plate 901;

[0068] Finally, a sliding groove that matches the ejector head 8 is provided on the fixed plate 901. When the ejector head 8 performs an ejection action under the push of the mounting plate 704, the ejector head 8 can slide in the sliding groove. The sliding groove guides and limits the ejector head 8, ensuring that the ejector head 8 can move in the correct direction without deviation or shaking, thereby ensuring that the ejector head 8 can accurately squeeze out the excess material in the mold 3. At the same time, the size and shape of the sliding groove are compatible with the ejector head 8, which can also prevent external impurities from entering the working area, and play a certain protective role in the normal operation of the equipment.

[0069] An extrusion molding device and an aluminum profile extrusion molding method,

[0070] S1: The output shaft of the cylinder 2 pushes the connecting plate 4, the mounting plate 501, the ejector head 8 and the push rod 9 to move in a straight line. The end face of the push rod 9 contacts the blank and pushes the blank into the guide assembly 6, and continuously passes through the mold 3 along the guidance of the guide assembly 6 to form a profile.

[0071] S2: With the movement of the mounting plate 501, the mounting plate 501 drives the clamping block 1001, the connecting plate 1002, the rolling ball 1003, the connecting block 1004, and the tension spring 1005 to move. When the ejector head 8 and the push rod 9 extrude the blank until the two are about to fit with the end surface of the mold 3, the multiple rolling balls 1003 will first contact the trigger rod 601, and the movement of the multiple rolling balls 1003 will be restricted. The multiple rolling balls 1003 will no longer move, and then with the movement of the mounting plate 501, the multiple rolling balls 1003 will be The travel distance of the ball 1003 is smaller than the travel distance of the push rod 9 and the mounting plate 501. As the mounting plate 501 moves, the clamping block 1001 slides along the mounting plate 501. When the ejector head 8 and the push rod 9 extrude the blank until both fit with the end surface of the mold 3, the clamping block 1001 will be clamped with the clamping groove on the clamping plate 701. When the clamping block 1001 is fully inserted into the clamping groove, the sensor 12 will be triggered, and the sensor 12 will output a switch signal. This signal is used to control the start or stop of the drive motor 1101.

[0072] S3: Start the driving motor 1101, the driving motor 1101 will drive the output shaft 1102 at the output end to rotate, and the rotating gear 1103 at the other end of the output shaft 1102 will rotate together with the output shaft 1102, and the rotating gear 1103 will drive the fixed gear 1104 to rotate around the central axis of the connecting disk 4, and then the fixed gear 1104 will drive the mounting disk 501 to rotate. Through the rotation of the mounting disk 501, the mounting disk 501 will drive the push rod 9 to rotate. When the push rod 9 rotates at the end of the aluminum profile to be formed, relative movement is generated on the contact surface, thereby avoiding the adhesion between the blank and the push rod 9.

[0073] S4: When the clamping plate 701 rotates driven by the mounting plate 501, the clamping plate 701 will drive the threaded rod 702 to move, and the mounting plate 704 at the other end of the threaded rod 702 will also make linear motion with the threaded rod 702. The linear motion of the mounting plate 704 is used for ejection to squeeze out the excess material in the mold 3.

[0074] Through the above technical scheme, 1. Through the driving motor 1101, the driving motor 1101 will drive the output shaft 1102 at the output end to rotate, and the rotating gear 1103 at the other end of the output shaft 1102 will rotate together with the output shaft 1102, and the rotating gear 1103 will drive the fixed gear 1104 to rotate around the central axis of the connecting disk 4, and then the fixed gear 1104 drives the mounting disk 501 to rotate. Through the rotation of the mounting disk 501, the mounting disk 501 will drive the push rod 9 to rotate. When the push rod 9 rotates at the end of the aluminum profile to be formed, relative movement is generated on the contact surface, thereby avoiding the adhesion between the blank and the push rod 9, and also providing good conditions for the next extrusion operation, ensuring the smooth progress of the extrusion process and the forming quality of the aluminum profile.

[0075] 2. The clamping plate 701 rotates under the drive of the mounting plate 501, and then the clamping plate 701 will drive the threaded rod 702 to move, and the mounting plate 704 at the other end of the threaded rod 702 will also make linear motion with the threaded rod 702. The linear motion of the mounting plate 704 is used for ejection to squeeze out the remaining material in the mold 3, thereby ensuring that the aluminum profile can be completely and smoothly separated from the mold 3, ensuring the cleaning of the mold 3 and the normal progress of subsequent processing, and avoiding the problem of breakage caused by friction when the profile is pulled out by external traction after forming in the traditional way.

[0076] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. An extrusion molding device, comprising a body (1), a cylinder (2) is fixedly mounted on one end of the body (1), a mold (3) is fixedly mounted on the other end, a connecting plate (4) is fixedly mounted on the output shaft of the cylinder (2), an extrusion tool (5) is connected to the connecting plate (4), a guide assembly (6) is arranged between the extrusion tool (5) and the mold (3), the output end of the cylinder (2) drives the blank to pass through the mold (3) under the guidance of the guide assembly (6) to form an aluminum profile, characterized in that: A trigger rod (601) is provided on one side of the guide assembly (6); The extrusion tool (5) comprises a mounting plate (501), an ejection mechanism (7) is slidably mounted in the inner cavity of the connecting plate (4) along the central axis direction of the output end of the cylinder (2), an ejection head (8) is detachably mounted on one end of the ejection mechanism (7), and the shape and size of the ejection head (8) are consistent with those of the aluminum profile; a push rod (9) is fixedly mounted in the middle of a side of the mounting plate (501) away from the connecting plate (4), the ejection head (8) is located inside the push rod (9), and the two sides in contact with the blank are kept flush, so that the two can extrude the blank together to advance; A locking mechanism (10) is slidably mounted on the mounting plate (501) along the central axis direction of the output end of the cylinder (2). When the ejector head (8) and the push rod (9) extrude the blank until the two are in contact with the end surface of the mold (3), the trigger rod (601) squeezes the locking mechanism (10) to slide relative to the mounting plate (501) so that the locking mechanism (10) is engaged with the ejector mechanism (7) for synchronous rotation of the mounting plate (501) and the ejector mechanism (7). A driving assembly (11) is fixedly mounted on the connecting plate (4). ), the driving assembly (11) is used to drive the mounting plate (501) to rotate around the central axis of the output end of the cylinder (2), so as to synchronously drive the ejection mechanism (7) to operate through the locking mechanism (10), so that the ejection head (8) is displaced relative to the push rod (9) to squeeze out the excess material in the mold (3), and a sensor (12) is provided at the connection between the locking mechanism (10) and the ejection mechanism (7), and the sensor (12) is used to determine whether the locking mechanism (10) and the ejection mechanism (7) are connected, and start the rotation of the driving assembly (11) when they are connected.

2. An extrusion molding device according to claim 1, characterized in that: The driving assembly (11) comprises a driving motor (1101), wherein the driving motor (1101) is fixedly mounted on the connecting disk (4), and an output shaft (1102) is fixedly mounted on the output end of the driving motor (1101).

3. An extrusion molding device according to claim 2, characterized in that: A rotating gear (1103) is fixedly mounted on the other end of the output shaft (1102), one end of the rotating gear (1103) is meshed with a fixed gear (1104), one end of the fixed gear (1104) is rotatably mounted on the connecting disk (4), and the other end is fixedly mounted on the mounting disk (501).

4. An extrusion molding device according to claim 1, characterized in that: The locking mechanism (10) comprises a plurality of snap-fit ​​blocks (1001), each of the plurality of snap-fit ​​blocks (1001) being slidably mounted on the mounting plate (501), a connecting plate (1002) being fixedly mounted on one end of the plurality of snap-fit ​​blocks (1001) close to the trigger rod (601), and a plurality of rolling balls (1003) being arranged in a circular array on one end of the connecting plate (1002) close to the trigger rod (601).

5. An extrusion molding device according to claim 4, characterized in that: A connecting block (1004) is fixedly mounted on the outer wall of the clamping block (1001), a tension spring (1005) is fixedly mounted on one end of the connecting block (1004), and the other end of the tension spring (1005) is fixedly mounted on the inner wall of the mounting plate (501).

6. An extrusion molding device according to claim 4, characterized in that: The ejection mechanism (7) comprises a snap-in plate (701), the snap-in plate (701) being located in the inner cavity of the mounting plate (501), the snap-in plate (701) being provided with a snap-in groove for snapping with the snap-in block (1001), and the sensor (12) being mounted on a side of the snap-in groove away from the snap-in block (1001).

7. An extrusion molding device according to claim 1, characterized in that: A threaded rod (702) is threadedly mounted on the clamping disk (701) and along the central axis direction of the output end of the cylinder (2); a sliding rod (703) is fixedly mounted on one end of the threaded rod (702) close to the connecting disk (4); the sliding rod (703) is slidably mounted on the connecting disk (4); and a mounting plate (704) is fixedly mounted on the other end of the threaded rod (702).

8. An extrusion molding device according to claim 7, characterized in that: A screw head (801) is fixedly mounted on one end of the ejector head (8) and is used to remove and install the ejector head (8) on the mounting plate (704). The screw head (801) is threadedly mounted on the mounting plate (704).

9. An extrusion molding device according to claim 1, characterized in that: One end of the push rod (9) away from the mounting plate (501) is connected to a fixing plate (901) by a bearing, and a sliding groove cooperating with the ejector head (8) is provided on the fixing plate (901).

10. An extrusion molding device and an aluminum profile extrusion molding method according to any one of claims 1 to 9, characterized in that: S1: The output shaft of the cylinder 2 pushes the connecting plate 4, the mounting plate 501, the ejector head (8) and the push rod 9 to move in a straight line, the end surface of the push rod 9 contacts the blank and pushes the blank into the guide assembly 6, and continuously passes through the mold (3) along the guidance of the guide assembly (6) to form a profile; S2: As the mounting plate 501 moves, the mounting plate 501 drives the clamping block (1001), the connecting plate (1002), the rolling ball (1003), the connecting block (1004), and the tension spring (1005) to move. When the ejector head (8) and the push rod (9) extrude the blank until the two are about to fit with the end surface of the mold (3), the multiple rolling balls (1003) will first contact the trigger rod 601, and the movement of the multiple rolling balls 1003 will be restricted. The multiple rolling balls 1003 will no longer move, and then as the mounting plate 501 moves, the multiple rolling balls 1003 will be moved. 03 has a travel distance that is smaller than that of the push rod 9 and the mounting plate 501. As the mounting plate (501) moves, the clamping block (1001) slides along the mounting plate (501). When the ejector head (8) and the push rod (9) extrude the blank until the two are in contact with the end surface of the mold (3), the clamping block (1001) will be clamped with the clamping groove on the clamping plate (701). When the clamping block (1001) is fully inserted into the clamping groove, the sensor (12) will be triggered, and the sensor (12) will output a switch signal, which is used to control the start or stop of the drive motor (1101). S3: Start the driving motor 1101, the driving motor (1101) will drive the output shaft (1102) at the output end to rotate, the rotating gear (1103) at the other end of the output shaft (1102) will rotate together with the output shaft (1102), the rotating gear (1103) will drive the fixed gear (1104) to rotate around the central axis of the connecting disk (4), and then the fixed gear (1104) will drive the mounting disk (501) to rotate, through the rotation of the mounting disk (501), the mounting disk 501 will drive the push rod 9 to rotate, then when the push rod 9 rotates at the end of the aluminum profile to be formed, relative movement occurs on the contact surface, thereby avoiding the adhesion between the blank and the push rod 9; S4: When the clamping plate (701) rotates driven by the mounting plate (501), the clamping plate (701) will drive the threaded rod (702) to move, and the mounting plate (704) at the other end of the threaded rod (702) will also move linearly with the threaded rod (702). The linear movement of the mounting plate (704) is used for ejection to squeeze out the excess material in the mold (3).

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