Aluminum profile continuous bending device and method

Abstract

The invention discloses an aluminum profile continuous bending device and method, and relates to the technical field of bending equipment.The aluminum profile continuous bending device comprises a bending machine body, a film padding mechanism and a feeding mechanism are arranged on the bending machine body, the bending machine body comprises a lathe bed, a hydraulic telescopic rod, a sliding table, an upper pressing die and a lower pressing die, and the sliding table is fixedly installed on the lathe bed; the sliding table is installed at the bottom of the hydraulic telescopic rod and slidably connected with the lathe bed, the upper pressing die is installed at the bottom of the sliding table, the lower pressing die is fixedly installed on the lathe bed, and the film padding mechanism comprises an annular film belt, a driving guide box, an oil immersion box, a driven guide box, a dust removal chuck and an oil shoveling chuck. An annular film belt is laid on the upper end face of the lower pressing die. The device has the advantages of being high in automation degree, easy and convenient to operate and convenient to maintain, and the problems that in a traditional bending process, indentations or scratches are prone to occurring on the surface of the aluminum profile, the production efficiency is low, and die abrasion is fast are solved.

Description

Technical Field

[0001] The invention relates to the technical field of bending equipment, and in particular to a device and method for continuous bending of aluminum profiles. Background Art

[0002] In the aluminum profile processing industry, bending is one of the important processes for manufacturing aluminum profile products of various shapes and sizes. The traditional aluminum profile bending method usually places the aluminum profile directly on the lower die for bending, which often leads to direct friction between the aluminum profile and the die, causing indentations or scratches on the surface of the aluminum profile, seriously affecting the appearance quality and market competitiveness of the product. In addition, due to the lack of effective lubrication measures, the mold wears faster during continuous production, which not only increases maintenance costs but also reduces production efficiency.

[0003] In order to solve the above problems, the prior art has proposed the use of film or other isolation materials as an intermediate layer to reduce the direct contact between the aluminum profile and the mold, thereby reducing friction damage. However, most of these methods require manual laying of isolation materials, and it is difficult to ensure that the isolation materials can evenly cover the mold surface every time the bend is made. In addition, the friction between the film and the profile and the mold is too large, which can easily cause damage to the film and requires frequent replacement. For continuous production scenarios, the production efficiency of aluminum profiles is seriously affected. Therefore, a continuous bending device and method for aluminum profiles is needed to solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to provide an aluminum profile continuous bending device and method, which has the advantages of high degree of automation, simple operation and convenient maintenance, and solves the problems of easy indentation or scratching on the surface of aluminum profiles, low production efficiency and fast mold wear in traditional bending processes.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: an aluminum profile continuous bending device, comprising a bending machine body, on which a film pad mechanism and a feeding mechanism are provided; The bending machine body comprises a bed, a hydraulic telescopic rod, a slide, an upper die and a lower die, wherein the slide is fixedly mounted on the bed, the slide is mounted on the bottom of the hydraulic telescopic rod and is slidably connected to the bed, the upper die is mounted on the bottom of the slide, and the lower die is fixedly mounted on the bed; The film pad mechanism includes an annular film belt, a driving guide box, an oil immersion box, a driven guide box, a dust removal chuck and an oil scraping chuck. The film pad mechanism is installed on the bed, and an annular film belt is laid on the upper end surface of the lower die; The feeding mechanism comprises a protective sleeve, a feeding roller, a support frame and a motor. The feeding mechanism is installed on the front end surface of the bed to feed the material.

[0006] As a preferred aluminum profile continuous bending device of the present invention, the oil immersion box is fixedly installed on the front end surface of the bed, the bottom of the side end surface of the driving guide box is fixedly installed on the left side of the oil immersion box, and the bottom of the side end surface of the driven guide box is fixedly installed on the right side of the oil immersion box. The dust removal chuck is detachably installed on the top of the side end surface of the driving guide box, and the oil scraping chuck is detachably installed on the side end surface of the driven guide box. The annular film belt passes through the dust removal chuck, the driving guide box, the oil immersion box, the driven guide box and the oil scraping chuck in sequence and is laid on the upper end surface of the lower die. The second guide roller 2031 and the third guide roller are arranged in the oil immersion box, and an oil filling port is arranged on the top of the front end surface of the oil immersion box. The annular film belt is made of polytetrafluoroethylene.

[0007] As a preferred aluminum profile continuous bending device of the present invention, the driving guide box includes a protective cover, a driving roller, a first guide roller and a driving rod. The driving roller and the first guide roller are installed in the protective cover and are rotatably connected thereto. The driving rod is fixedly installed on the back of the slide. A gear rotatably connected via a one-way bearing is provided on the central axis of the driving roller, and a rack meshing with the gear is provided on the side end face of the driving rod.

[0008] As a preferred aluminum profile continuous bending device of the present invention, a ratchet is arranged on the central axis of the driving roller away from the gear end, and a pawl cooperating with the ratchet and a second torsion spring are arranged on the protective cover, and the pawl is elastically rotatably connected to the protective cover through the second torsion spring.

[0009] As a preferred aluminum profile continuous bending device of the present invention, a belt threading groove is provided on the side of the dust removal chuck, a dust collecting groove is provided at the bottom of the belt threading groove, support ribs are provided at the top and bottom of the belt threading groove, and wiping cotton that is in sliding contact with the annular film belt is provided on the support ribs, the wiping cotton is an isosceles trapezoidal structure, a magnetic column is provided on the protective cover, and a positioning groove that magnetically cooperates with the magnetic column is provided on the dust removal chuck.

[0010] As a preferred aluminum profile continuous bending device of the present invention, the oil scraping chuck is provided with an upper scraper, a lower scraper and a first rotating shaft, the first rotating shaft is provided with a first torsion spring, the upper scraper and the lower scraper are elastically rotatably connected with the oil scraping chuck through the first rotating shaft and the first torsion spring, and the bottom upper end surface of the oil scraping chuck is provided with a reflux groove.

[0011] As a preferred aluminum profile continuous bending device of the present invention, the upper end face of the lower die is provided with a protective strip, the side end face of the protective strip is provided with a protective flange, and the bottom of the protective flange is in contact with the upper end face edge of the annular film belt.

[0012] As a preferred aluminum profile continuous bending device of the present invention, the support frame is fixedly installed on the front end surface of the bed, the protective sleeve is fixedly installed on the upper end surface of the support frame, the motor is fixedly installed in the protective sleeve, the feed roller is installed in the protective sleeve and rotatably connected to the protective sleeve, the feed roller is fixedly installed on the output shaft of the motor, and the outer end surface of the feed roller is provided with an ultrafine fiber layer.

[0013] As a preferred aluminum profile continuous bending device of the present invention, the bottom of the protective sleeve is provided with a chip removal opening, and the edge of the chip removal opening is provided with a scraper flange that protrudes upward and squeezes the ultra-fine fiber layer.

[0014] A method for continuously bending an aluminum profile, applicable to the aforementioned device for continuously bending an aluminum profile, comprises the following steps: Step 1, cushion film, the cushion film mechanism sets a layer of annular film belt on the upper end surface of the lower die; Step 2, feeding, the feeding is assisted by the feeding mechanism, and the positioning is performed manually. During the feeding process, the bottom of the aluminum profile is wiped by the feeding roller of the feeding mechanism; Step 3: Bending: bending the aluminum profile by the bending machine body; Step 4: Add oil to the annular film belt. Add oil to the annular film belt after bending.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention forms an isolation layer on the surface of the lower die through the annular film belt of the pad film mechanism, combined with the lubricating grease infiltration of the oil immersion box and the precise oil scraping control of the oil shoveling chuck, so that a uniform thin oil film is formed on the surface of the annular film belt. This structure completely isolates the direct contact between the aluminum profile and the mold during bending, solving the indentation problem caused by friction in traditional processes. At the same time, the driving guide box is linked to the gear rack mechanism through a hydraulic telescopic rod, and the slide reset power is used to drive the annular film belt to move in a one-way cycle. With the ratchet pawl anti-backward design, the annular film belt is automatically replenished with oil and updated in position. The trapezoidal wiping cotton structure of the dust removal chuck can efficiently intercept dust and guide it to the dust collection tank. Combined with the magnetic quick-release design, the cleanliness and maintenance convenience of the annular film belt are ensured. This closed-loop system not only improves the surface quality, but also reduces manual lubrication intervention, significantly improving production continuity.

[0016] 2. The feeding mechanism of the present invention adopts a motor-driven ultra-fine fiber feeding roller, which simultaneously wipes the dust on the bottom surface of the aluminum profile when pushing the aluminum profile to prevent pollutants from entering the mold with the profile and aggravating the wear of the annular film belt. The scraper flange and chip removal port design at the bottom of the protective sleeve form a self-cleaning mechanism to continuously remove debris adsorbed by the fiber layer to ensure the stable cleanliness of the feeding roller. In addition, the protective strip and flange structure at the edge of the lower die effectively restrain the edge of the annular film belt to prevent feed jamming caused by warping or deviation. Through multi-functional integration, this structure not only reduces the pretreatment process, but also ensures the feeding positioning accuracy and reduces the scrap rate.

[0017] 3. The dust removal chuck and oil scraping chuck of the present invention adopt a magnetic connection structure, which is convenient for quick disassembly and cleaning; the oil immersion box and the reflux tank form a grease circulation system to reduce lubricant waste; the one-way transmission mechanism of the drive roller avoids mechanical fatigue caused by the reciprocating motion of the annular film belt. These designs not only optimize the maintainability of the equipment, but also replace the traditional metal roller with an ultra-fine fiber layer to reduce hard friction and extend the service life of the mold and transmission parts. The overall structure improves the degree of automation while reducing the comprehensive operation and maintenance costs of the equipment, and is suitable for high-frequency continuous production scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 A top view of the present invention; Figure 3 For the present invention Figure 2 Middle AA section; Figure 4 It is a schematic diagram of the structure of the cushion membrane mechanism of the present invention; Figure 5 It is a schematic diagram of the structure of the driving guide box of the present invention; Figure 6 It is a schematic diagram of the structure of the dust removal chuck of the present invention; Figure 7 It is a schematic diagram of the structure of the oil scraping chuck of the present invention; Figure 8 For the present invention Figure 3 Enlarged view of point B in the middle; Fig. 9 For the present invention Figure 5 Enlarged view of point C in the middle; Fig.10 For the present invention Figure 8 Enlarged view of point D in the middle; Fig.11 For the present invention Figure 8 Enlarged view of point E in the middle; Fig.12 It is a schematic diagram of the structure of the feed roller of the present invention; Fig.13It is a schematic diagram of the structure of the oil immersion box of the present invention.

[0019] In the figure: 1. bending machine body; 101. bed; 102. hydraulic telescopic rod; 103. slide; 104. upper die; 105. lower die; 1051. protective strip; 10511. protective flange; 2. film pad mechanism; 201. annular film belt; 202. driving guide box; 2021. protective cover; 20211. magnetic column; 2022. driving roller; 20221. gear; 20222. ratchet; 20223. pawl; 20224. second torsion spring; 2023. first guide roller; 2024. driving rod; 20241. rack; 203. oil immersion box; 2031. second guide roller; 20 32. The third guide roller; 2033. The oil filling port; 204. The driven guide box; 205. The dust removal chuck; 2051. The belt threading groove; 2052. The dust collecting groove; 2053. The positioning groove; 2054. The finger groove; 2055. The support rib; 2056. The wiping cotton; 206. The oil scraping chuck; 2061. The upper scraper; 2062. The lower scraper; 2063. The first rotating shaft; 2064. The first torsion spring; 2065. The reflux groove; 3. The feeding mechanism; 301. The protective sleeve; 3011. The scraper flange; 3012. The chip removal port; 302. The feeding roller; 3021. The ultrafine fiber layer; 303. The support frame; 304. The motor. DETAILED DESCRIPTION Example 1

[0020] See also Figure 1-Figure 13 , a continuous bending device for aluminum profiles, comprising a bending machine body 1, on which a film pad mechanism 2 and a feeding mechanism 3 are arranged; The bending machine body 1 includes a bed 101, a hydraulic telescopic rod 102, a slide 103, an upper die 104 and a lower die 105. The slide 103 is fixedly mounted on the bed 101. The slide 103 is mounted at the bottom of the hydraulic telescopic rod 102 and is slidably connected to the bed 101. The upper die 104 is mounted at the bottom of the slide 103. The lower die 105 is fixedly mounted on the bed 101. The film pad mechanism 2 includes an annular film belt 201, a driving guide box 202, an oil immersion box 203, a driven guide box 204, a dust removal chuck 205 and an oil scraping chuck 206. The film pad mechanism 2 is installed on the bed 101, and the annular film belt 201 is laid on the upper end surface of the lower die 105; The feeding mechanism 3 includes a protective sleeve 301 , a feeding roller 302 , a support frame 303 and a motor 304 . The feeding mechanism 3 is installed on the front end surface of the bed 101 for feeding.

[0021] Furthermore, the oil immersion box 203 is fixedly mounted on the front end surface of the bed 101, the bottom of the side end surface of the driving guide box 202 is fixedly mounted on the left side of the oil immersion box 203, and the bottom of the side end surface of the driven guide box 204 is fixedly mounted on the right side of the oil immersion box 203 (with the attached Figure 4 The dust removal chuck 205 is detachably mounted on the top of the side end surface of the driving guide box 202, and the oil scraping chuck 206 is detachably mounted on the side end surface of the driven guide box 204. The annular film belt 201 passes through the dust removal chuck 205, the driving guide box 202, the oil immersion box 203, the driven guide box 204 and the oil scraping chuck 206 in sequence and is laid on the upper end surface of the lower die 105. The second guide roller 2031 and the third guide roller 2032 are arranged in the oil immersion box 203. The top of the front end surface of the oil immersion box 203 is provided with an oil filling port 2033. The annular film belt 201 is made of polytetrafluoroethylene.

[0022] The oil immersion box 203 is filled with lubricating grease. After the annular film belt 201 is immersed in the lubricating oil in the oil immersion box 203, the excess lubricating grease on the surface of the annular film belt 201 is removed by the oil scraping chuck 206, so that a thin oil film is formed on the surface of the annular film belt 201. The annular film belt 201 is laid on the upper end surface of the lower die 105. When the aluminum profile is die-cast, the annular film belt 201 is padded between the aluminum profile and the lower die 105, so as to avoid contact and friction between the aluminum profile and the lower die 105, which causes indentations on the lower end surface of the aluminum profile during the bending process. After bending, the annular film belt 201 will roll in a cycle, and the dust on the surface of the annular film belt 201 will be removed by the dust removal chuck 205, and then transported to the oil immersion box 203 through the driving guide box 202 for oil replenishment.

[0023] Furthermore, the driving guide box 202 includes a protective cover 2021, a driving roller 2022, a first guide roller 2023 and a driving rod 2024. The driving roller 2022 and the first guide roller 2023 are installed in the protective cover 2021 and are rotatably connected thereto. The driving rod 2024 is fixedly installed on the back side of the slide 103. A gear 20221 rotatably connected via a one-way bearing is provided on the central axis of the driving roller 2022, and a rack 20241 meshing with the gear 20221 is provided on the side end face of the driving rod 2024.

[0024] When the hydraulic telescopic rod 102 drives the slide 103 to slide downward, the driving rod 2024 drives the gear 20221 to rotate counterclockwise through the rack 20241. When the slide 103 slides upward to reset, the rack 20241 drives the gear 20221 to rotate clockwise, thereby driving the driving roller 2022 to rotate, so that the driving roller 2022 drives the annular film belt 201 to move, so that it enters the oil immersion box 203 for oil replenishment. After each bending, the annular film belt 201 can move a certain distance, so that the annular film belt 201 can remain lubricated.

[0025] Furthermore, a ratchet 20222 is provided at the end of the central axis of the driving roller 2022 away from the gear 20221, and a pawl 20223 and a second torsion spring 20224 cooperating with the ratchet 20222 are provided on the protective cover 2021, and the pawl 20223 is elastically rotatably connected to the protective cover 2021 through the second torsion spring 20224.

[0026] When the ratchet 20222 and the pawl 20223 cooperate, the driving roller 2022 can only rotate in one direction, thereby ensuring that when the slide 103 falls, the gear 20221 idles. When the slide 103 rises, the gear 20221 and the rack 20241 cooperate to make the driving roller 2022 rotate clockwise, thereby avoiding the reciprocating motion of the annular film belt 201.

[0027] Furthermore, a belt threading groove 2051 is provided on the side of the dust removing chuck 205, a dust collecting groove 2052 is provided at the bottom of the belt threading groove 2051, support ribs 2055 are provided at the top and bottom of the belt threading groove 2051, and wiping cotton 2056 that is in sliding contact with the annular film belt 201 is provided on the support rib 2055, and the wiping cotton 2056 is an isosceles trapezoidal structure, and a magnetic column 20211 is provided on the protective cover 2021, and a positioning groove 2053 that magnetically cooperates with the magnetic column 20211 is provided on the dust removing chuck 205, and the upper and lower end surfaces of the dust removing chuck 205 and the oil scraping chuck 206 are provided with finger grooves 2054 that are convenient for grasping and removing.

[0028] When the annular film belt 201 passes through the dust removal chuck 205, the wiping cotton 2056 intercepts the dust on the surface of the annular film belt 201. Since the wiping cotton 2056 is an isosceles trapezoidal structure, the accumulated dust debris will slide along the side of the wiping cotton 2056 to the edge, and finally fall into the dust collecting groove 2052. The dust and waste oil in the dust collecting groove 2052 are cleaned regularly. The magnetic suction column 20211 and the positioning groove 2053 are used to facilitate the quick disassembly and cleaning of the dust removal chuck 205. The installation method of the oil shoveling chuck 206 is the same as that of the dust removal chuck 205.

[0029] Furthermore, the oil scraping chuck 206 is provided with an upper scraper plate 2061, a lower scraper plate 2062 and a first rotating shaft 2063, and the first rotating shaft 2063 is provided with a first torsion spring 2064. The upper scraper plate 2061 and the lower scraper plate 2062 are elastically rotatably connected with the oil scraping chuck 206 through the first rotating shaft 2063 and the first torsion spring 2064, and a reflux groove 2065 is provided on the bottom upper end surface of the oil scraping chuck 206.

[0030] The upper scraper 2061 and the lower scraper 2062 are kept in contact with the upper and lower end surfaces of the annular film belt 201 under the restoring action of the first torsion spring 2064, thereby scraping off excess lubricating grease on the surface of the annular film belt 201, and guiding the excess lubricating oil through the reflux groove 2065 to flow back into the driven guide box 204, and finally flow back into the oil immersion box 203.

[0031] Furthermore, a protective strip 1051 is disposed on the upper end surface of the lower die 105 , and a protective flange 10511 is disposed on the side end surface of the protective strip 1051 . The bottom of the protective flange 10511 is in contact with the edge of the upper end surface of the annular film belt 201 .

[0032] The edge of the annular film strip 201 is protected by the protection strip 1051 to prevent the annular film strip 201 from warping, causing the annular film strip 201 to be scooped up during the entry of the aluminum profile, thereby affecting the quality of the aluminum profile bending part.

[0033] Furthermore, the support frame 303 is fixedly installed on the front end surface of the bed 101, the protective sleeve 301 is fixedly installed on the upper end surface of the support frame 303, the motor 304 is fixedly installed in the protective sleeve 301, the feed roller 302 is installed in the protective sleeve 301 and is rotatably connected thereto, the feed roller 302 is fixedly installed on the output shaft of the motor 304, and the outer end surface of the feed roller 302 is provided with a microfiber layer 3021.

[0034] The motor 304 drives the feed roller 302 to rotate, thereby assisting the aluminum alloy profile to be fed between the upper die 104 and the lower die 105 for bending. During the feeding process, the ultrafine fibers on the surface of the feed roller 302 can wipe the dust on the lower end surface of the aluminum alloy profile, reducing the wear of the dust on the annular film belt 201.

[0035] Furthermore, a chip removal opening 3012 is provided at the bottom of the protective sleeve 301 , and a scraper flange 3011 is provided at the edge of the chip removal opening 3012 , which protrudes upward and presses the ultra-fine fiber layer 3021 .

[0036] The scraper flange 3011 is used to scrape away dust and debris attached to the surface of the ultrafine fiber layer 3021, thereby avoiding excessive dust on the surface of the feed roller 302 to affect the wiping effect, so that the feed roller 302 remains clean, and the scraped dust falls from the chip discharge port 3012, and a waste bin can be placed below to receive the dust.

[0037] When the bending device is in use, the power is turned on, the motor 304 is started, the feed roller 302 starts to rotate, the aluminum alloy profile is placed on the feed roller 302, and the feed roller 302 rotates under the drive of the motor 304, assisting the aluminum alloy profile to be fed between the upper die 104 and the lower die 105, and is precisely positioned manually. During the feeding process, the ultra-fine fiber layer 3021 on the surface of the feed roller 302 wipes the dust on the lower end surface of the aluminum alloy profile, reducing the wear of the dust on the annular film belt 201, and at the same time When the aluminum alloy profile is positioned, the hydraulic telescopic rod 102 drives the slide 103 to slide downward, and the upper die 104 moves downward accordingly, and cooperates with the lower die 105 to bend the aluminum profile. At this time, the annular film belt 201 is placed between the aluminum profile and the lower die 105 to avoid contact and friction between the aluminum profile and the lower die 105, so as to prevent the aluminum profile from sliding downward during the bending process. When the hydraulic telescopic rod 102 drives the slide 103 to slide downward, the driving rod 2024 drives the gear 20221 to rotate counterclockwise through the rack 20241; when the slide 103 slides upward to reset, the rack 20241 drives the gear 20221 to rotate clockwise, thereby driving the driving roller 2022 to rotate, so that the driving roller 2022 drives the annular film belt 201 to move, so that it enters the oil immersion box 203 for oil replenishment. After each bending, the annular film belt 201 can Move a certain distance to maintain lubrication. After the annular film belt 201 is immersed in lubricating oil in the oil immersion box 203, the excess lubricating grease on the surface is removed by the oil scraping chuck 206, so that a thin oil film is formed on the surface of the annular film belt 201. After bending, the annular film belt 201 rolls in a cycle. When passing through the dust removal chuck 205, the wiping cotton 2056 intercepts the dust on the surface of the annular film belt 201, and the accumulated dust debris slides to the edge along the side of the wiping cotton 2056 and finally falls into the dust collecting groove 2052. Example 2

[0038] See also Figure 1-Figure 13 A continuous bending method for aluminum profiles is applicable to a continuous bending device for aluminum profiles, comprising the following steps: Step 1, pad film, pass the annular film belt 201 through the dust removal chuck 205, the driving guide box 202, the oil immersion box 203, the driven guide box 204 and the oil scraping chuck 206 in sequence, so that the annular film belt 201 is flat and closely fits the surface of the lower die 105; Step 2, feeding, the aluminum alloy profile to be bent is placed steadily on the feeding roller 302, ensuring that the profile will not deviate or slide during the feeding process, the power is turned on, the motor 304 is started, the feeding roller 302 starts to rotate, and the aluminum alloy profile is assisted to be conveyed forward. During the feeding process, the operator manually controls the feeding speed of the aluminum profile and positions it to ensure that the aluminum profile accurately enters the predetermined position between the upper die 104 and the lower die 105. At the same time, the ultra-fine fiber layer 3021 on the surface of the feeding roller 302 wipes the dust on the lower end surface of the aluminum alloy profile, and the scraper flange 3011 scrapes off the dust and debris attached to the surface of the ultra-fine fiber layer 3021, so that it falls into the waste bucket from the chip discharge port 3012; Step 3: Bending: Start the hydraulic telescopic rod 102 to drive the slide 103 to slide downward, and the upper die 104 moves downward accordingly to cooperate with the lower die 105 to bend the aluminum profile; Step 4, the annular film belt 201 is replenished with oil. After the bending is completed, the hydraulic telescopic rod 102 drives the slide 103 to slide upward and reset. At this time, the driving rod 2024 drives the gear 20221 to rotate clockwise through the rack 20241, thereby driving the driving roller 2022 to rotate, so that the driving roller 2022 drives the annular film belt 201 to move, so that it enters the oil immersion box 203 for oil replenishment. When passing through the dust removal chuck 205, the wiping cotton 2056 intercepts the dust on the surface of the annular film belt 201, and the accumulated dust and debris slides to the edge along the side of the wiping cotton 2056, and finally falls into the dust collecting groove 2052. The annular film belt 201 is in the oil immersion box 20 3 is immersed in lubricating oil to fully absorb the grease for replenishing lubrication. After being immersed in oil, the annular film belt 201 passes through the oil scraping chuck 206. The upper scraper 2061 and the lower scraper 2062 are kept in contact with the upper end surface and the lower end surface of the annular film belt 201 under the action of the first torsion spring 2064, and the excess lubricating grease on the surface of the annular film belt 201 is scraped off. The excess lubricating oil is guided by the reflux groove 2065 to flow back into the driven guide box 204, and finally flows back into the oil immersion box 203. The annular film belt 201 after oil replenishment continues to circulate and roll. After dust removal is completed, the annular film belt 201 returns to the upper end surface of the lower die 105 to prepare for the next bending.

[0039] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A continuous bending device for aluminum profiles, comprising a bending machine body (1), characterized in that: The bending machine body (1) is provided with a film pad mechanism (2) and a feeding mechanism (3); The bending machine body (1) comprises a bed (101), a hydraulic telescopic rod (102), a slide (103), an upper die (104) and a lower die (105); the slide (103) is fixedly mounted on the bed (101); the slide (103) is mounted on the bottom of the hydraulic telescopic rod (102) and is slidably connected to the bed (101); the upper die (104) is mounted on the bottom of the slide (103); and the lower die (105) is fixedly mounted on the bed (101); The film pad mechanism (2) comprises an annular film belt (201), a driving guide box (202), an oil immersion box (203), a driven guide box (204), a dust removal chuck (205) and an oil scraping chuck (206); the film pad mechanism (2) is mounted on a bed (101); The feeding mechanism (3) comprises a protective sleeve (301), a feeding roller (302), a support frame (303) and a motor (304); the feeding mechanism (3) is mounted on the front end surface of the bed (101).

2. The aluminum profile continuous bending device according to claim 1, characterized in that: The oil immersion box (203) is fixedly mounted on the front end surface of the bed (101); the bottom of the side end surface of the driving guide box (202) is fixedly mounted on the left side of the oil immersion box (203); the bottom of the side end surface of the driven guide box (204) is fixedly mounted on the right side of the oil immersion box (203); the dust removal chuck (205) is detachably mounted on the top of the side end surface of the driving guide box (202); and the oil scraping chuck (206) is detachably mounted on the top of the side end surface of the driven guide box (204). 04), the annular film belt (201) sequentially passes through a dust removal chuck (205), a driving guide box (202), an oil immersion box (203), a driven guide box (204) and an oil scraping chuck (206) and is laid on the upper end surface of the lower die (105), the oil immersion box (203) is provided with a second guide roller (2031) and a third guide roller (2032), and the top of the front end surface of the oil immersion box (203) is provided with an oil filling port (2033).

3. The aluminum profile continuous bending device according to claim 1, characterized in that: The driving guide box (202) comprises a protective cover (2021), a driving roller (2022), a first guide roller (2023) and a driving rod (2024); the driving roller (2022) and the first guide roller (2023) are mounted in the protective cover (2021) and are rotatably connected thereto; the driving rod (2024) is fixedly mounted on the back of the slide (103); a gear (20221) rotatably connected thereto via a one-way bearing is disposed on the central axis of the driving roller (2022); and a rack (20241) meshing with the gear (20221) is disposed on the side end surface of the driving rod (2024).

4. The aluminum profile continuous bending device according to claim 3, characterized in that: A ratchet (20222) is provided at the end of the central axis of the driving roller (2022) away from the gear (20221), and a pawl (20223) and a second torsion spring (20224) that cooperate with the ratchet (20222) are provided on the protective cover (2021), and the pawl (20223) is elastically rotatably connected to the protective cover (2021) via the second torsion spring (20224).

5. The aluminum profile continuous bending device according to claim 3, characterized in that: A belt threading groove (2051) is provided on the side of the dust removal chuck (205), a dust collecting groove (2052) is provided on the bottom of the belt threading groove (2051), support ribs (2055) are provided on the top and bottom of the belt threading groove (2051), and wiping cotton (2056) that is in sliding contact with the annular film belt (201) is provided on the support rib (2055), and the wiping cotton (2056) is an isosceles trapezoidal structure, a magnetic column (20211) is provided on the protective cover (2021), and a positioning groove (2053) that is magnetically matched with the magnetic column (20211) is provided on the dust removal chuck (205).

6. The aluminum profile continuous bending device according to claim 2, characterized in that: The oil scraping chuck (206) is provided with an upper scraper plate (2061), a lower scraper plate (2062) and a first rotating shaft (2063); the first rotating shaft (2063) is provided with a first torsion spring (2064); the upper scraper plate (2061) and the lower scraper plate (2062) are elastically rotatably connected to the oil scraping chuck (206) through the first rotating shaft (2063) and the first torsion spring (2064); and a reflux groove (2065) is provided on the upper end surface of the bottom of the oil scraping chuck (206).

7. The aluminum profile continuous bending device according to claim 1, characterized in that: The upper end surface of the lower die (105) is provided with a protective strip (1051), and the side end surface of the protective strip (1051) is provided with a protective flange (10511), and the bottom of the protective flange (10511) is in contact with the edge of the upper end surface of the annular film belt (201).

8. The aluminum profile continuous bending device according to claim 1, characterized in that: The support frame (303) is fixedly mounted on the front end surface of the bed (101); the protective sleeve (301) is fixedly mounted on the upper end surface of the support frame (303); the motor (304) is fixedly mounted in the protective sleeve (301); the feed roller (302) is mounted in the protective sleeve (301) and is rotatably connected thereto; the feed roller (302) is fixedly mounted on the output shaft of the motor (304); and an ultra-fine fiber layer (3021) is provided on the outer end surface of the feed roller (302).

9. A method for continuously bending aluminum profiles, applicable to an aluminum profile continuous bending device as claimed in any one of claims 1 to 8, characterized in that: The following steps are involved: Step 1, cushion film: the cushion film mechanism (2) arranges a layer of an annular film belt (201) on the upper end surface of the lower die (105); Step 2, feeding, the feeding is assisted by a feeding mechanism (3), the positioning is performed manually, and during the feeding process, the bottom of the aluminum profile is wiped by a feeding roller (302) of the feeding mechanism (3); Step 3: bending: bending the aluminum profile by means of a bending machine body (1); Step 4: Adding oil to the annular film belt (201). After the bending is completed, the annular film belt (201) is added with oil.

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