Passive energy-saving aluminum alloy profile extrusion forming equipment

Abstract

The invention discloses passive energy-saving aluminum alloy profile extrusion forming equipment, relates to the technical field of aluminum alloy extrusion forming, and aims to solve the technical problems that a mold fails in advance and the service life of the mold is greatly shortened due to the fact that thermal fatigue cracks are easily generated when a forming mold head is used for a long time. A hydraulic cylinder, an extrusion container assembly, a first support, a second support and an alternating type mold mechanism are arranged on the top face of the operation table, and a feeding channel and a movable channel are formed in the operation table from top to bottom. The alternate type mold mechanism comprises a linkage assembly arranged on the side wall of the first support, two mold control assemblies arranged on the top face of the operation table and two impurity removal assemblies. The device has the advantages that the two forming die heads can be alternately used, shutdown replacement is not needed, the working efficiency is not affected, and the forming die heads can be protected.

Description

Technical Field

[0001] The invention relates to the technical field of aluminum alloy extrusion molding, and more specifically to a passive energy-saving aluminum alloy profile extrusion molding equipment. Background Art

[0002] Passive energy-saving aluminum alloy profiles are a type of aluminum alloy profile products developed to meet the energy-saving needs of passive buildings. Passive buildings emphasize minimizing the building's dependence on active heating and cooling systems through efficient thermal insulation, heat insulation and airtightness. For example, some residential casement window frames mostly use hollow rectangular cross-section aluminum alloy profiles, which can cooperate well with other components to form a complete door and window system. The internal space of this cross-sectional shape can be used to set insulation strips to achieve thermal insulation functions. This aluminum alloy profile is widely used in door and window frames.

[0003] Passive energy-saving aluminum alloy profiles are usually manufactured by extrusion molding equipment during the production process. The heated aluminum bar blank is placed in the extrusion barrel. The extrusion rod is pushed toward the die under the strong pressure provided by the hydraulic system. The aluminum bar is subjected to the thrust of the extrusion rod and the constraint of the inner wall of the extrusion barrel, resulting in plastic deformation. It is extruded from the die hole of the die to form an aluminum alloy profile with the same shape as the die hole. However, during the working process, the surface temperature of the mold rises rapidly due to contact with the high-temperature aluminum bar blank. When it is in a high temperature state for a long time, thermal fatigue cracks are easily generated on the surface of the mold. These cracks will continue to expand with the use of the mold, and may eventually cause the mold to crack, causing the mold to fail prematurely, greatly shortening the service life of the mold. In addition, some aluminum slag is likely to remain in the mold, which is likely to cause the surface of the extruded aluminum alloy profile to have defects such as unevenness, pitting, and scratches, reducing the surface finish and aesthetics of the profile and affecting the appearance quality of the product. In view of this, we propose a passive energy-saving aluminum alloy profile extrusion molding equipment. Summary of the invention

[0004] The purpose of the present invention is to provide a passive energy-saving aluminum alloy profile extrusion molding equipment to solve the technical problem that long-term use of a molding die head is prone to thermal fatigue cracks, causing the die to fail prematurely and greatly shortening the service life of the die.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a passive energy-saving aluminum alloy profile extrusion forming equipment, comprising an operating table, the top surface of which is arranged with a hydraulic cylinder, an extrusion barrel assembly, a first bracket, a second bracket and an alternating mold mechanism, the operating table is provided with a feed channel and a movable channel from top to bottom, and a feed assembly is arranged below the feed channel; the alternating mold mechanism comprises a linkage assembly arranged on the side wall of the first bracket, two mold control assemblies and two impurity removal assemblies arranged on the top surface of the operating table, and the two mold control assemblies are respectively arranged on both sides of the extrusion barrel assembly; the mold control assembly comprises a rotating rod, the circumferential outer wall of the rotating rod is connected to a fixed block, and the circumferential outer wall of the rotating rod is movable sleeved A movable block is provided; an outer mold is detachably connected to one side wall of the fixed block, and a blowing assembly is arranged on the other side wall of the fixed block; an inner mold is detachably connected to the side wall of the movable block, and a movable adjustment assembly is arranged under the movable block, and the movable adjustment assembly is used to adjust the outer mold and the inner mold to form a merged state or a separated state. In the merged state, the outer mold and the inner mold form a molding mold head, and in the separated state, the outer mold and the inner mold are cleaned by the impurity removal assembly; the alternating mold mechanism controls the molding mold heads of the two mold control assemblies through the linkage assembly for alternating use, and during the alternating use, the blowing assembly delivers high-pressure airflow to the inner cavity of the extrusion cylinder assembly for impurity removal.

[0006] Preferably, the hydraulic cylinder is arranged below the first bracket, and the extrusion cylinder assembly is arranged between the first bracket and the second bracket; the extrusion cylinder assembly includes a first extrusion cylinder and a second extrusion cylinder, and the bottoms of the first extrusion cylinder and the second extrusion cylinder are respectively slidably matched with the top of the operating table, and the first extrusion cylinder and the second extrusion cylinder have a combined state and a separated state. In the separated state, a rotating channel is formed between the first extrusion cylinder and the second extrusion cylinder, and the rotating channel is connected to the movable channel.

[0007] Preferably, the extrusion cylinder assembly also includes a first motor arranged at the top of the first bracket, and the output end of the first motor is connected to a bidirectional screw rod, the bidirectional screw rod movably penetrates the side wall of the first bracket and rotates with the side wall of the second bracket, and the side wall of the first bracket is connected to the side wall of the second bracket by a plurality of sliding rods; the top of the first extrusion cylinder is connected to a transmission block 1 and a plurality of sliding blocks 1, the bidirectional screw rod penetrates one side wall of the transmission block and is threadedly fitted, the sliding rod penetrates the sliding block 1 and is slidingly fitted, and the top of the second extrusion cylinder is arranged with the same structural components as the top of the first extrusion cylinder; the side wall of the first extrusion cylinder is provided with a mold groove, and the side wall of the second extrusion cylinder is provided with a notch with the same structure as the mold groove, and the mold groove is used to place the forming mold head.

[0008] Preferably, the linkage assembly includes a second motor arranged on the side wall of the first bracket, the output end of the second motor is connected to a rotating column 1, the circumferential outer wall of the rotating column 1 is connected to two bevel gears 1 with the same structure, and the rotating column 1 is rotatably arranged on the side wall of the first bracket; the side wall of the first bracket is also rotatably arranged with two rotating columns 2 with the same structure, the top of the rotating column 2 is connected to bevel gear 2, the lower end of the circumferential outer wall of the rotating column 2 is connected to bevel gear 3, and the bevel gear 1 is meshingly connected with the bevel gear 2.

[0009] Preferably, the mold control assembly includes a plurality of fixed plates connected to the top of the operating table, the rotating rod is rotatably arranged between two of the fixed plates, one end of the rotating rod is connected to bevel gear four, and the bevel gear four is meshingly connected to bevel gear three; a plurality of long convex plates are connected to the circumferential outer wall of the rotating rod, and one end of the long convex plate is connected to the side wall of the fixed block.

[0010] Preferably, the inner cavity of the moving block is provided with a sliding groove of the same shape as the long convex plate, and the moving block slidingly cooperates with the long convex plate through the sliding groove, and the long convex plate is used to drive the moving block to rotate synchronously with the rotating rod; the circumferential outer wall of the moving block is connected to a ring plate, and the circumferential outer wall of the ring plate is provided with a rotating groove.

[0011] Preferably, the movable adjustment component includes a slide, a gear rack and a third motor arranged on the top of the operating table; the output end of the third motor is connected to a gear five, and the gear five is rotatably arranged on the inner wall of the gear rack; the top of the slide is slidably connected to a movable plate, and the bottom of the movable plate is provided with a plurality of tooth openings one, and the tooth openings one are meshed and connected with the gear five; the top of the movable plate is connected to a transmission plate, and the top of the transmission plate is integrally formed with a card plate, and the card plate is a semicircular arc structure, and the card plate is movably arranged in the rotating groove.

[0012] Preferably, the blowing assembly comprises a supporting plate connected to the side wall of the fixed block, an air duct is installed on the side wall of the supporting plate, one end of the air duct is connected to an external air supply device, the other end of the air duct is connected to a bent pipe, the output end of the bent pipe is movably connected to an inclined nozzle, and the inclined nozzle forms an inclined angle with the output end of the bent pipe; wherein, the circumferential outer wall of the bent pipe is connected to an outer circular plate, the circumferential inner wall of the outer circular plate is provided with a rolling groove 1, the inner cavity of the outer circular plate is movably arranged with an inner circular plate, the circumferential outer wall of the inner circular plate is provided with a rolling groove 2, a plurality of balls are movably arranged between the rolling groove 1 and the rolling groove 2, and the inner circular plate is rotatably matched with the outer circular plate through the balls; The inner circular plate is arranged on the outer side wall of the inclined nozzle, and the outer side wall of the inclined nozzle is also arranged with a plurality of tooth openings 2, and the plurality of tooth openings 2 are arranged in a circular array; the side wall of the curved tube is connected with a fan bin, and the inner cavity of the fan bin is communicated with the inner cavity of the curved tube, the outer side wall of the outer circular plate is connected with a fixed seat, and a movable rod passes through the side wall of the fixed seat, and the movable rod is rotatably matched with the fixed seat, one end of the movable rod passes through the side wall of the curved tube and is rotatably matched, a plurality of fan blades are connected to the circumferential outer wall of the movable rod, and the other end of the movable rod is connected to a gear 6; the plurality of fan blades are arranged in the inner cavity of the fan bin and the inner cavity of the curved tube, and the gear 6 is meshedly connected with the tooth opening 2.

[0013] Preferably, the impurity removal component includes a pipe rack connected to the top of the operating table, and square tube 1 and square tube 2 are arranged on the top of the pipe rack. The side wall of one end of square tube 1 is provided with multiple blowing outlet 1, and the side wall of one end of square tube 2 is provided with multiple blowing outlet 2. Blowing outlet 1 is in opposite directions to blowing outlet 2. The other end of square tube 1 is connected to an external air supply device, and the other end of square tube 2 is connected to an external air supply device.

[0014] Preferably, the feeding assembly includes a fixed frame arranged at the bottom of the operating table, a fourth motor is arranged at the bottom of the fixed frame, a one-way screw is connected to the output end of the fourth motor, the one-way screw is movably arranged at the bottom of the operating table, the circumferential outer wall of the one-way screw is threadedly connected to a lifting platform, the side wall of the lifting platform is slidably matched with the side wall of the fixed frame, and a material discharge trough is provided on the top of the lifting platform, and the material discharge trough is an arc-shaped groove structure.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention arranges die control assemblies on both sides of the extrusion cylinder assembly. When the aluminum bar blank is extruded, it is necessary to convey new aluminum bar blanks to continue the extrusion molding operation. During the feeding period, the forming die head of one of the die control assemblies is controlled by the linkage assembly to rotate out of the die slot, and the forming die head of the other die control assembly enters the die slot to perform the next stage of extrusion molding operation, thereby realizing the alternating use of the two forming die heads without stopping for replacement, which does not affect the work efficiency and can protect the forming die heads, thereby solving the problem that thermal fatigue cracks are easily generated when a forming die head is used for a long time, causing the mold to fail prematurely and greatly shortening the service life of the mold.

[0016] 2. The present invention designs an impurity removal component, which rotates the forming die head in a separated state to the side of the impurity removal component, so that square tube one and square tube two are located between the outer die and the inner die, and high-pressure airflow is delivered to the inside of square tube one and square tube two through an external air supply device. Square tube one blows and removes impurities to the inner cavity of the inner die through a plurality of blowing ports one, and square tube two blows and removes impurities to the inner cavity of the outer die through a plurality of blowing ports two, so that during the alternating use of the two forming die heads, maintenance operations can be performed alternately, that is, one forming die head is working, and the other forming die head is blowing and removing impurities. By blowing and removing impurities, the forming die head in a high temperature state can be appropriately cooled to avoid thermal fatigue, and aluminum slag can be avoided from remaining in the forming die head, which easily causes defects such as unevenness, pitting, and scratches on the surface of the extruded aluminum alloy profile.

[0017] 3. The present invention designs a blowing assembly. When the first extrusion cylinder and the second extrusion cylinder form a separated state, the two rotating rods rotating synchronously in the same direction rotate for a certain degree and then stop rotating. At this time, the two rotating rods respectively drive the two blowing assemblies to rotate. One of the blowing assemblies rotates in the rotating channel from the upper direction of the first extrusion cylinder and the second extrusion cylinder to bring the inclined nozzle between the first extrusion cylinder and the second extrusion cylinder. The other blowing assembly rotates in the rotating channel from the lower direction of the movable channel to bring the other inclined nozzle between the first extrusion cylinder and the second extrusion cylinder. The two inclined nozzles respectively deliver high-pressure airflow to the inner cavities of the first extrusion cylinder and the second extrusion cylinder, and use the high-pressure airflow to blow out impurities in the inner cavities of the first extrusion cylinder and the second extrusion cylinder, thereby achieving an impurity removal effect, avoiding friction loss of impurities on the forming die head, improving the service life of the forming die head, and improving the surface finish of the extruded aluminum alloy profile.

[0018] 4. The present invention also designs the inclined nozzle and the bent pipe output end of the blowing assembly to have an inclined angle. When the high-pressure airflow is delivered to the inside of the air duct through an external air supply device, the high-pressure airflow can drive the multiple fan blades to rotate, and then drive the movable rod to rotate. By utilizing the engagement between gear six and tooth mouth two, the movable rod drives the inclined nozzle to rotate through gear six. The inclined nozzle is affected by the inclination angle to form a rotating and swinging motion state. Through the rotation and swinging of the inclined nozzle, the inner cavity of the first extrusion cylinder and the second extrusion cylinder can be impacted by airflow at multiple angles, thereby improving the impurity removal effect. The impact force of the high-pressure airflow is utilized to drive the rotation of the inclined nozzle, thereby utilizing wind energy to a great extent without consuming other energy sources.

[0019] 5. In the present invention, when the rotating rod rotates, the long convex plate on the outer circumferential wall of the rotating rod can drive the moving block to rotate synchronously with the rotating rod, further making the outer mold and the inner mold form a synchronous movement, so that the outer mold and the inner mold form a relatively static state, ensuring the stability of the combined state of the outer mold and the inner mold, that is, maintaining the stability of the molding mold head structure.

[0020] 6. The present invention provides a rotating groove on the circumferential outer wall of the ring plate, and an integrally formed card plate with a semicircular arc structure is formed on the top of the transmission plate. The card plate is movably arranged in the rotating groove. When the rotating rod rotates and drives the moving block to rotate, the moving block rotates on the card plate through the rotating groove, so that the moving block rotates smoothly. When the third motor drives gear five to rotate, gear five drives the moving plate to slide along the top of the slide through tooth mouth one. The transmission plate on the top of the moving plate drives the moving block to slide along the long convex plate through the card plate, so that the inner mold is away from the outer mold, and the outer mold and the inner mold are in a separated state. The moving block can not only rotate with the rotation of the rotating rod, but also slide along the long convex plate on the rotating rod through the moving adjustment component, thereby realizing two functions. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the structure of the extrusion cylinder assembly of the present invention; Figure 3 It is a schematic diagram of the structure of the first extrusion cylinder and the second extrusion cylinder of the present invention; Figure 4 It is a schematic diagram of the structure of the alternating mold mechanism of the present invention; Figure 5 It is a schematic diagram of the linkage assembly structure of the alternating mold mechanism of the present invention; Figure 6 It is a schematic structural diagram of a mold control assembly of an alternating mold mechanism of the present invention; Figure 7 It is a schematic diagram of the rotating rod structure of the present invention; Figure 8It is a schematic diagram of the split structure of the moving block and the moving adjustment component of the present invention; Fig. 9 It is a schematic diagram of the structure of the blowing assembly of the present invention; Fig.10 It is a schematic diagram of the blow assembly structure of the present invention; Fig.11 It is a schematic diagram of the cross-section structure of the blowing assembly of the present invention; Fig.12 It is a schematic diagram of the structure of the impurity removal component of the present invention; Fig.13 It is a schematic diagram of the structure of the feed assembly of the present invention; Fig.14 The figure is a schematic diagram of a usage state of the present invention.

[0022] Description of the numbers in the figure: 1. Operating table; 2. Hydraulic cylinder; 3. Extrusion cylinder assembly; 4. First bracket; 5. Second bracket; 6. Alternating mold mechanism; 7. Feeding assembly; 101. feeding channel; 102. activity channel; 31. First extrusion cylinder; 32. Second extrusion cylinder; 33. First motor; 34. Bidirectional screw rod; 35. Sliding rod; 3101, transmission block 1; 3102, slider 1; 3103, mold groove; 61. linkage assembly; 62. mold control assembly; 63. impurity removal assembly; 621. air blowing assembly; 622. mobile adjustment assembly; 6101, second motor; 6102, rotating column 1; 6103, bevel gear 1; 6104, rotating column 2; 6105, bevel gear 2; 6106, bevel gear 3; 6201, rotating rod; 6202, fixed block; 6203, moving block; 6204, outer mold; 6205, inner mold; 6206, fixed plate; 6207, bevel gear 4; 6208, long convex plate; 6209, slide groove; 6210, ring plate; 6211, rotating groove; 6301, pipe rack; 6302, square tube 1; 6303, square tube 2; 6304, blowing port 1; 6305, blowing port 2; 62101, support plate; 62102, air duct; 62103, elbow; 62104, inclined nozzle; 62105, outer circular plate; 62106, ball bearing; 62107, inner circular plate; 62108, tooth opening 2; 62109, fan chamber; 62110, fixed seat; 62111, movable rod; 62112, fan blade; 62113, gear 6; 62201, slide; 62202, gear frame; 62203, third motor; 62204, gear 5; 62205, moving plate; 62206, tooth opening 1; 62207, transmission plate; 62208, card plate; 701, fixed frame; 702, fourth motor; 703, one-way screw rod; 704, lifting platform; 705, material discharge trough. DETAILED DESCRIPTION

[0023] Embodiment 1, as Figures 1 to 14 As shown, the present invention relates to a passive energy-saving aluminum alloy profile extrusion forming equipment, including an operating table 1, the top surface of the operating table 1 is arranged with a hydraulic cylinder 2, an extrusion barrel assembly 3, a first bracket 4, a second bracket 5 and an alternating mold mechanism 6, the output end of the hydraulic cylinder 2 is connected to an extrusion rod, the operating table 1 is provided with a feed channel 101 and a movable channel 102 from top to bottom, and a feed assembly 7 is arranged below the feed channel 101. The present invention feeds aluminum bar blanks into the feed assembly 7 through an external feeding mechanism, and feeds the aluminum bar blanks to the output end of the hydraulic cylinder 2 through the feed assembly 7. The hydraulic cylinder 2 works to push the extrusion rod forward, and the extrusion rod drives the aluminum bar blank into the extrusion barrel assembly 3 to perform an extrusion forming operation.

[0024] In the embodiment of the present invention, the hydraulic cylinder 2 is arranged below the first bracket 4, and the extrusion cylinder assembly 3 is arranged between the first bracket 4 and the second bracket 5; the extrusion cylinder assembly 3 includes a first extrusion cylinder 31 and a second extrusion cylinder 32, the bottoms of the first extrusion cylinder 31 and the second extrusion cylinder 32 are respectively slidably matched with the top of the operating table 1, and the first extrusion cylinder 31 and the second extrusion cylinder 32 have a combined state and a separated state. In the separated state, a rotating channel is formed between the first extrusion cylinder 31 and the second extrusion cylinder 32, and the rotating channel is connected to the movable channel 102; Specifically, the extrusion cylinder assembly 3 also includes a first motor 33 arranged at the top of the first bracket 4, and the output end of the first motor 33 is connected to a bidirectional screw rod 34, which movably penetrates the side wall of the first bracket 4 and rotates with the side wall of the second bracket 5, and the side wall of the first bracket 4 is connected to the side wall of the second bracket 5 through a plurality of sliding rods 35; the top of the first extrusion cylinder 31 is connected to a transmission block 3101 and a plurality of sliding blocks 3102, the bidirectional screw rod 34 penetrates the side wall of the transmission block 3101 and is threaded, and the sliding rod 35 penetrates the sliding block 3102 and is slidable. The second extrusion cylinder 32 is dynamically matched, and the top of the second extrusion cylinder 32 is arranged with the same structural components as the top of the first extrusion cylinder 31; the side wall of the first extrusion cylinder 31 is provided with a mold groove 3103, and the side wall of the second extrusion cylinder 32 is provided with a notch with the same structure as the mold groove 3103, and the mold groove 3103 is used to place the molding mold head; the present invention works through the first motor 33, which drives the bidirectional screw 34 to rotate, and further drives the first extrusion cylinder 31 and the second extrusion cylinder 32 to move toward or away from each other, so that the first extrusion cylinder 31 and the second extrusion cylinder 32 have a merged state or a separated state.

[0025] In an embodiment of the present invention, the alternating mold mechanism 6 includes a linkage assembly 61 arranged on the side wall of the first bracket 4, two mold control assemblies 62 and two impurity removal assemblies 63 arranged on the top surface of the operating table 1, the two mold control assemblies 62 are respectively arranged on both sides of the extrusion cylinder assembly 3, and the impurity removal assembly 63 is arranged on the side of the mold control assembly 62.

[0026] The present invention arranges mold control components 62 on both sides of the extrusion cylinder component 3. When the aluminum bar blank is extruded, new aluminum bar blank needs to be conveyed to continue the extrusion molding operation. During the feeding period, the linkage component 61 controls the molding die head of one of the mold control components 62 to rotate out of the mold groove 3103, and the molding die head of the other mold control component 62 enters the mold groove 3103 to perform the next stage of extrusion molding operation, thereby realizing the alternating use of the two molding die heads and solving the problem that thermal fatigue cracks are easily generated when one molding die head is used for a long time, causing the mold to fail prematurely and greatly shortening the service life of the mold.

[0027] In the embodiment of the present invention, the linkage assembly 61 includes a second motor 6101 arranged on the side wall of the first bracket 4, the output end of the second motor 6101 is connected to a rotating column 1 6102, the circumferential outer wall of the rotating column 1 6102 is connected to two bevel gears 1 6103 of the same structure, and the rotating column 1 6102 is rotatably arranged on the side wall of the first bracket 4; the side wall of the first bracket 4 is also rotatably arranged with two rotating columns 2 6104 of the same structure, the top of the rotating column 2 6104 is connected to a bevel gear 2 6105, the lower end of the circumferential outer wall of the rotating column 2 6104 is connected to a bevel gear 3 6106, and the bevel gear 1 6103 is meshed with the bevel gear 2 6105; Furthermore, the mold control component 62 includes a rotating rod 6201, the outer circumferential wall of the rotating rod 6201 is connected to a fixed block 6202, and the outer circumferential wall of the rotating rod 6201 is movably sleeved with a moving block 6203; the mold control component 62 also includes a plurality of fixed plates 6206 connected to the top of the operating table 1, the rotating rod 6201 is rotatably arranged between two fixed plates 6206, one end of the rotating rod 6201 is connected to a bevel gear four 6207, and the bevel gear four 6207 is meshed and connected with the bevel gear three 6106; one side wall of the fixed block 6202 is detachably connected to the outer mold 6204, and the other side wall of the fixed block 6202 is arranged with a blowing component 621; the side wall of the moving block 6203 can be The inner mold 6205 is disassembled and connected, and a movable adjustment component 622 is arranged under the movable block 6203; in the present invention, when the first extrusion cylinder 31 and the second extrusion cylinder 32 form a separated state, the second motor 6101 works to drive the rotating column 1 6102 to rotate, and the rotating column 1 6102 drives the two bevel gears 2 6105 to rotate respectively through the two bevel gears 1 6103, and the two bevel gears 2 6105 drive the two rotating columns 2 6104 to rotate respectively, and the two rotating columns 2 6104 drive the two bevel gears 4 6207 to rotate respectively through the bevel gear 3 6106, thereby further making the two rotating rods 6201 rotate synchronously in the same direction, thereby achieving the linkage effect of the two rotating rods 6201.

[0028] In an embodiment of the present invention, the movable adjustment component 622 is used to adjust the outer mold 6204 and the inner mold 6205 to form a merged state or a separated state. In the merged state, the outer mold 6204 and the inner mold 6205 form a molding mold head. In the separated state, the outer mold 6204 and the inner mold 6205 are cleaned by the impurity removal component 63; the alternating mold mechanism 6 controls the molding mold heads of the two mold control components 62 through the linkage component 61 for alternating use. During the alternating use, the blowing component 621 delivers high-pressure airflow to the inner cavity of the extrusion cylinder component 3 to remove impurities.

[0029] As another embodiment of the present invention, a plurality of long convex plates 6208 are connected to the outer circumferential wall of the rotating rod 6201, and one end of the long convex plate 6208 is connected to the side wall of the fixed block 6202; a sliding groove 6209 of the same shape as the long convex plate 6208 is opened in the inner cavity of the moving block 6203, and the moving block 6203 slides with the long convex plate 6208 through the sliding groove 6209, and the long convex plate 6208 is used to drive the moving block 6203 to rotate synchronously with the rotating rod 6201; a ring plate 6210 is connected to the outer circumferential wall of the moving block 6203, The outer circumferential wall of the ring plate 6210 is provided with a rotation groove 6211; in the present invention, when the rotating rod 6201 rotates, the long convex plate 6208 on the outer circumferential wall of the rotating rod 6201 can drive the moving block 6203 to rotate synchronously with the rotating rod 6201, further making the outer mold 6204 and the inner mold 6205 form a synchronous movement, so that the outer mold 6204 and the inner mold 6205 form a relatively static state, ensuring the stability of the combined state of the outer mold 6204 and the inner mold 6205, that is, maintaining the stability of the molding mold head structure; Furthermore, the mobile adjustment component 622 includes a slide 62201, a gear frame 62202 and a third motor 62203 arranged on the top of the operating table 1; the output end of the third motor 62203 is connected to a gear 5 62204, and the gear 5 62204 is rotatably arranged on the inner wall of the gear frame 62202; the top of the slide 62201 is slidably connected to a moving plate 62205, and the bottom of the moving plate 62205 is provided with a plurality of tooth openings 62206, and the tooth openings 6220 6 is meshed and connected with the gear five 62204; the top of the moving plate 62205 is connected with a transmission plate 62207, and the top of the transmission plate 62207 is integrally formed with a card plate 62208, the card plate 62208 is a semi-circular arc structure, and the card plate 62208 is movably arranged in the rotating groove 6211; the present invention provides a rotating groove 6211 on the circumferential outer wall of the ring plate 6210, and the card plate 62208 with a semi-circular arc structure is integrally formed on the top of the transmission plate 62207, and the card plate 622 08 is arranged in the rotating groove 6211. When the rotating rod 6201 rotates and drives the moving block 6203 to rotate, the moving block 6203 rotates on the clamping plate 62208 through the rotating groove 6211, so that the moving block 6203 rotates smoothly. When the third motor 62203 drives the gear 5 62204 to rotate, the gear 5 62204 drives the moving plate 62205 to slide along the top of the slide 62201 through the tooth mouth 1 62206. The transmission plate 62207 at the top drives the moving block 6203 to slide along the long convex plate 6208 through the clamping plate 62208, so that the inner mold 6205 is away from the outer mold 6204, and the outer mold 6204 and the inner mold 6205 are separated. The moving block 6203 can not only rotate with the rotation of the rotating rod 6201, but also slide along the long convex plate 6208 on the rotating rod 6201 through the moving adjustment component 622, thereby realizing two functions.

[0030] As another embodiment of the present invention, the blowing assembly 621 includes a support plate 62101 connected to the side wall of the fixed block 6202, and the side wall of the support plate 62101 is installed with a duct 62102, one end of the duct 62102 is connected to an external air supply device, and the other end of the duct 62102 is connected to a bend 62103, and the output end of the bend 62103 is movably connected to an inclined nozzle 62104, and the inclined nozzle 62104 and the output end of the bend 62103 form a Angle of inclination; wherein, the outer circumferential wall of the curved pipe 62103 is connected to an outer circular plate 62105, a rolling groove 1 is provided on the inner circumferential wall of the outer circular plate 62105, an inner circular plate 62107 is movably arranged in the inner cavity of the outer circular plate 62105, a rolling groove 2 is provided on the outer circumferential wall of the inner circular plate 62107, a plurality of balls 62106 are movably arranged between the rolling groove 1 and the rolling groove 2, and the inner circular plate 62107 is rotatably matched with the outer circular plate 62105 through the balls 62106; the inner circular plate 62 107 is arranged on the outer wall of the inclined nozzle 62104, and the outer wall of the inclined nozzle 62104 is also arranged with a plurality of tooth openings 62108, and the plurality of tooth openings 62108 are arranged in a circular array; the side wall of the curved pipe 62103 is connected with a fan chamber 62109, and the inner cavity of the fan chamber 62109 is connected with the inner cavity of the curved pipe 62103; the outer wall of the outer circular plate 62105 is connected with a fixed seat 62110, and the side wall of the fixed seat 62110 is penetrated by a movable rod 62111 The movable rod 62111 is rotatably matched with the fixed seat 62110, one end of the movable rod 62111 penetrates the side wall of the curved tube 62103 and is rotatably matched, a plurality of blades 62112 are connected to the outer circumferential wall of the movable rod 62111, and the other end of the movable rod 62111 is connected to a gear six 62113; the plurality of blades 62112 are arranged in the inner cavity of the fan bin 62109 and the inner cavity of the curved tube 62103, and the gear six 62113 is meshed and connected with the tooth mouth two 62108; The present invention designs a blowing assembly 621. When the first extrusion cylinder 31 and the second extrusion cylinder 32 form a separation state, the two rotating rods 6201 that rotate synchronously in the same direction rotate 90 degrees and then stop rotating. At this time, the two rotating rods 6201 respectively drive the two blowing assemblies 621 to rotate. One of the blowing assemblies 621 rotates in the rotating channel from the upper direction of the first extrusion cylinder 31 and the second extrusion cylinder 32 to bring the inclined nozzle 62104 between the first extrusion cylinder 31 and the second extrusion cylinder 32. The other blowing assembly 621 rotates in the rotating channel from the lower direction of the movable channel 102 to bring the other inclined nozzle 62104 between the first extrusion cylinder 31 and the second extrusion cylinder 32. The two inclined nozzles 62104 respectively deliver high-pressure airflow to the inner cavities of the first extrusion cylinder 31 and the second extrusion cylinder 32, and use the high-pressure airflow to blow out impurities in the inner cavities of the first extrusion cylinder 31 and the second extrusion cylinder 32, thereby achieving an impurity removal effect, avoiding friction loss of the impurities on the forming die head, and improving the service life of the forming die head. It can also improve the surface finish of the extruded aluminum alloy profile. The present invention also designs the inclined nozzle 62104 of the blowing component 621 and the output end of the bent pipe 62103 to have an inclined angle. When the high-pressure airflow is delivered to the inside of the air duct 62102 through an external air supply device, the high-pressure airflow can drive the multiple fan blades 62112 to rotate, and then drive the movable rod 62111 to rotate. By utilizing the engagement between the gear six 62113 and the tooth mouth two 62108, the movable rod 62111 drives the inclined nozzle 62104 to rotate through the gear six 62113. The inclined nozzle 62104 is affected by the inclination angle to form a rotating and swinging motion state. Through the rotation and swinging of the inclined nozzle 62104, the inner cavity of the first extrusion cylinder 31 and the second extrusion cylinder 32 can be impacted by airflow at multiple angles, thereby improving the impurity removal effect. The impact force of the high-pressure airflow is utilized to drive the rotation of the inclined nozzle 62104, thereby utilizing wind energy to a great extent without consuming other energy sources.

[0031] As another embodiment of the present invention, the impurity removal component 63 includes a pipe rack 6301 connected to the top of the operating table 1, and a square tube 1 6302 and a square tube 2 6303 are arranged on the top of the pipe rack 6301. A plurality of blowing ports 1 6304 are arranged on the side wall at one end of the square tube 1 6302, and a plurality of blowing ports 2 6305 are arranged on the side wall at one end of the square tube 2 6303. The blowing ports 1 6304 are in opposite directions to the blowing ports 2 6305. The other end of the square tube 1 6302 is connected to an external air supply device, and the other end of the square tube 2 6303 is connected to an external air supply device. The present invention designs an impurity removal component 63, rotates the forming die head in a separated state to the side of the impurity removal component 63, so that the square tube 1 6302 and the square tube 2 6303 are located between the outer die 6204 and the inner die 6205, and transmits high-pressure airflow to the inside of the square tube 1 6302 and the square tube 2 6303 through an external air supply device. The square tube 1 6302 blows and removes impurities to the inner cavity of the inner die 6205 through a plurality of blowing ports 1 6304, and the square tube 2 6303 blows and removes impurities to the inner cavity of the outer die 6204 through a plurality of blowing ports 2 6305, so that during the alternating use of the two forming die heads, maintenance operations can be performed alternately, that is, one forming die head is working and the other forming die head is blowing and removing impurities. By blowing and removing impurities, the forming die head in a high temperature state can be appropriately cooled to avoid thermal fatigue, and aluminum slag remaining in the forming die head can be avoided, which easily causes defects such as unevenness, pitting, and scratches on the surface of the extruded aluminum alloy profile.

[0032] As another embodiment of the present invention, the feeding assembly 7 includes a fixed frame 701 arranged at the bottom of the operating table 1, a fourth motor 702 is arranged at the bottom of the fixed frame 701, a one-way screw 703 is connected to the output end of the fourth motor 702, the one-way screw 703 is movably arranged at the bottom of the operating table 1, the circumferential outer wall of the one-way screw 703 is threadedly connected to a lifting platform 704, the side wall of the lifting platform 704 is slidably matched with the side wall of the fixed frame 701, and a discharge trough 705 is provided on the top of the lifting platform 704, and the discharge trough 705 is an arc-shaped groove structure.

[0033] Embodiment 2: This embodiment provides a method for using a passive energy-saving aluminum alloy profile extrusion molding device, comprising the following steps: S1, extrusion forming operation, the heated aluminum bar blank is fed into the discharge trough 705 through the external feeding mechanism, the fourth motor 702 is operated to drive the one-way screw 703 to rotate, so that the lifting platform 704 rises, and the lifting platform 704 feeds the aluminum bar blank in the discharge trough 705 into the output end of the hydraulic cylinder 2 through the feeding channel 101, and the hydraulic cylinder 2 is operated to push the extrusion rod forward, and the extrusion rod drives the aluminum bar blank into the extrusion cylinder assembly 3, and the aluminum bar blank is extruded from the die hole of the forming die head to form a hollow rectangular cross-section aluminum alloy profile; S2. Use the molds alternately. When the aluminum bar blank is extruded, it is necessary to transport new aluminum bar blanks to continue the extrusion molding operation. During the feeding process, the first motor 33 works to drive the bidirectional screw 34 to rotate, and further drives the first extrusion cylinder 31 and the second extrusion cylinder 32 to move oppositely, so that the first extrusion cylinder 31 and the second extrusion cylinder 32 are separated. Then, the second motor 6101 works to drive the rotating column 1 6102 to rotate. The rotating column 1 6102 drives the two bevel gears 2 6105 to rotate respectively through the two bevel gears 1 6103. The two bevel gears 2 6105 drive the two rotating columns 2 6104 to rotate respectively. The two rotating columns 2 6104 drive the two bevel gears 4 6207 to rotate respectively through the bevel gear 3 6106, further making the two rotating rods 6201 rotate synchronously in the same direction. The rotation of the rotating rod 6201 drives the moving block 6203 Following the rotation, one of the rotating rods 6201 takes the forming die head out of the die slot 3103, and the other rotating rod 6201 brings the other forming die head into the die slot 3103, and then the first extrusion cylinder 31 and the second extrusion cylinder 32 are combined to clamp and fix the forming die head, and the extrusion molding operation is performed through the operation of S1. According to this method, when it is necessary to convey a new aluminum bar billet again to continue the extrusion molding operation, the first extrusion cylinder 31 and the second extrusion cylinder 32 are separated again, and then the second motor 6101 rotates in the opposite direction, so that the forming die head in the die slot 3103 is taken out by the rotating rod 6201 rotating in the opposite direction, and the other rotating rod 6201 rotating in the opposite direction synchronously brings the other forming die head into the die slot 3103, and this cycle is repeated to achieve the alternating use of the two forming die heads; S3, perform impurity removal operation on the first extrusion cylinder and the second extrusion cylinder. According to the operation of S2, when the first extrusion cylinder 31 and the second extrusion cylinder 32 form a separated state, the two rotating rods 6201 rotating synchronously in the same direction rotate 90 degrees and then stop rotating. At this time, the two rotating rods 6201 respectively drive the two blowing components 621 to rotate, one of the blowing components 621 rotates in the rotating channel from the upper direction of the first extrusion cylinder 31 and the second extrusion cylinder 32, and brings the inclined nozzle 62104 between the first extrusion cylinder 31 and the second extrusion cylinder 32, and the other blowing component 621 rotates in the rotating channel from the lower direction of the movable channel 102, and brings the other inclined nozzle 62104 between the first extrusion cylinder 31 and the second extrusion cylinder 32. The two inclined nozzles 62104 respectively deliver high-pressure airflow to the inner cavities of the first extrusion cylinder 31 and the second extrusion cylinder 32, and use the high-pressure airflow to blow out the impurities in the inner cavities of the first extrusion cylinder 31 and the second extrusion cylinder 32, so as to achieve the impurity removal effect; S4, separation operation of the molding die head. When the rotating rod 6201 rotates 90 degrees, the molding die head is taken out of the mold groove 3103 by the rotating rod 6201. At this time, the third motor 62203 drives the gear 5 62204 to rotate. The gear 5 62204 drives the moving plate 62205 to slide along the top of the slide 62201 through the tooth mouth 1 62206. The transmission plate 62207 on the top of the moving plate 62205 drives the moving block 6203 to slide along the long convex plate 6208 through the clamping plate 62208, so that the inner mold 6205 is away from the outer mold 6204, and the outer mold 6204 and the inner mold 6205 are separated. S5, alternating maintenance operation of the molds. During the impurity removal operation of S3, the molding mold head taken out of the mold groove 3103 by the rotating rod 6201 is adjusted to a separated state through the operation of S4. After completing the impurity removal operation of S3, the molding mold head in the combined state is rotated into the mold groove 3103 through the continued rotation of the two rotating rods 6201 to perform extrusion work, and the molding mold head in the separated state is rotated to the side of the impurity removal component 63, so that the square tube 1 6302 and the square tube 2 6303 are located between the outer mold 6204 and the inner mold 6205, and high-pressure airflow is transmitted to the inside of the square tube 1 6302 and the square tube 2 6303 through an external air supply device. The square tube 1 6302 uses a plurality of blowing ports 1 6304 to blow and remove impurities to the inner cavity of the inner mold 6205, and the square tube 2 6303 uses a plurality of blowing ports 2 6305 to blow and remove impurities to the inner cavity of the outer mold 6204, so that the two molding mold heads can be used alternately during the alternating use. Maintenance operations.

[0034] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. A passive energy-saving aluminum alloy profile extrusion molding equipment, characterized in that: The operating platform (1) comprises an operating table (1), wherein a hydraulic cylinder (2), an extrusion cylinder assembly (3), a first bracket (4), a second bracket (5) and an alternating mold mechanism (6) are arranged on the top surface of the operating table (1), a feed channel (101) and a movable channel (102) are provided from top to bottom of the operating table (1), and a feed assembly (7) is arranged below the feed channel (101); The alternating mold mechanism (6) comprises a linkage assembly (61) arranged on the side wall of the first bracket (4), two mold control assemblies (62) and two impurity removal assemblies (63) arranged on the top surface of the operating table (1), and the two mold control assemblies (62) are arranged on both sides of the extrusion cylinder assembly (3) respectively; The mold control assembly (62) comprises a rotating rod (6201), the circumferential outer wall of the rotating rod (6201) is connected to a fixed block (6202), and the circumferential outer wall of the rotating rod (6201) is movably sleeved with a moving block (6203); An outer mold (6204) is detachably connected to one side wall of the fixed block (6202), and a blowing assembly (621) is arranged on the other side wall of the fixed block (6202); The side wall of the movable block (6203) is detachably connected to an inner mold (6205), and a movable adjustment component (622) is arranged below the movable block (6203). The movable adjustment component (622) is used to adjust the outer mold (6204) and the inner mold (6205) to form a merged state or a separated state. In the merged state, the outer mold (6204) and the inner mold (6205) form a molding mold head. In the separated state, the outer mold (6204) and the inner mold (6205) are cleaned of impurities inside by the impurity removal component (63); The alternating mold mechanism (6) controls the two molding mold heads of the mold control components (62) to be used alternately through the linkage component (61). During the alternating use, the blowing component (621) delivers high-pressure airflow to the inner cavity of the extrusion cylinder component (3) to remove impurities.

2. The passive energy-saving aluminum alloy profile extrusion molding equipment according to claim 1 is characterized in that: The hydraulic cylinder (2) is arranged below the first bracket (4), and the extrusion cylinder assembly (3) is arranged between the first bracket (4) and the second bracket (5); The extrusion cylinder assembly (3) comprises a first extrusion cylinder (31) and a second extrusion cylinder (32), the bottoms of the first extrusion cylinder (31) and the second extrusion cylinder (32) respectively slidingly cooperate with the top of the operating table (1), the first extrusion cylinder (31) and the second extrusion cylinder (32) have a combined state and a separated state, in which a rotating channel is formed between the first extrusion cylinder (31) and the second extrusion cylinder (32), and the rotating channel is connected to the movable channel (102).

3. The passive energy-saving aluminum alloy profile extrusion molding equipment according to claim 2 is characterized in that: The extrusion cylinder assembly (3) further comprises a first motor (33) arranged at the top of the first bracket (4); the output end of the first motor (33) is connected to a bidirectional screw rod (34); the bidirectional screw rod (34) movably penetrates the side wall of the first bracket (4) and rotatably cooperates with the side wall of the second bracket (5); the side wall of the first bracket (4) and the side wall of the second bracket (5) are connected via a plurality of sliding rods (35); The top of the first extrusion cylinder (31) is connected to a transmission block 1 (3101) and a plurality of slide blocks 1 (3102); the bidirectional screw rod (34) penetrates the side wall of the transmission block 1 (3101) and is threadedly engaged; the slide rod (35) penetrates the slide block 1 (3102) and is slidably engaged; the top of the second extrusion cylinder (32) is provided with the same structural components as the top of the first extrusion cylinder (31); The side wall of the first extrusion cylinder (31) is provided with a mold groove (3103), and the side wall of the second extrusion cylinder (32) is provided with a notch having the same structure as the mold groove (3103), and the mold groove (3103) is used to place the molding mold head.

4. The passive energy-saving aluminum alloy profile extrusion molding equipment according to claim 3 is characterized in that: The linkage assembly (61) comprises a second motor (6101) arranged on the side wall of the first bracket (4); the output end of the second motor (6101) is connected to a rotating column (6102); the circumferential outer wall of the rotating column (6102) is connected to two bevel gears (6103) of the same structure; the rotating column (6102) is rotatably arranged on the side wall of the first bracket (4); The side wall of the first bracket (4) is also rotatably arranged with two rotating columns (6104) of the same structure, the top of the rotating column (6104) is connected to a bevel gear (6105), the lower end of the circumferential outer wall of the rotating column (6104) is connected to a bevel gear (6106), and the bevel gear (6103) is meshingly connected with the bevel gear (6105).

5. The passive energy-saving aluminum alloy profile extrusion molding equipment according to claim 4 is characterized in that: The mold control assembly (62) comprises a plurality of fixed plates (6206) connected to the top of the operating table (1); the rotating rod (6201) is rotatably arranged between two of the fixed plates (6206); one end of the rotating rod (6201) is connected to a bevel gear four (6207); the bevel gear four (6207) is meshedly connected to the bevel gear three (6106); A plurality of long convex plates (6208) are connected to the circumferential outer wall of the rotating rod (6201), and one end of the long convex plate (6208) is connected to the side wall of the fixing block (6202).

6. The passive energy-saving aluminum alloy profile extrusion molding equipment according to claim 5, characterized in that: The inner cavity of the moving block (6203) is provided with a sliding groove (6209) of the same shape as the long convex plate (6208), and the moving block (6203) is slidably matched with the long convex plate (6208) through the sliding groove (6209), and the long convex plate (6208) is used to drive the moving block (6203) to rotate synchronously with the rotating rod (6201); The outer circumferential wall of the moving block (6203) is connected to a ring plate (6210), and the outer circumferential wall of the ring plate (6210) is provided with a rotation groove (6211).

7. The passive energy-saving aluminum alloy profile extrusion molding equipment according to claim 6 is characterized in that: The movable adjustment component (622) comprises a slide frame (62201), a gear frame (62202) and a third motor (62203) arranged on the top of the operating table (1); The output end of the third motor (62203) is connected to a fifth gear (62204), and the fifth gear (62204) is rotatably arranged on the inner wall of the gear frame (62202); The top of the slide (62201) is slidably connected to a moving plate (62205), and the bottom of the moving plate (62205) is provided with a plurality of tooth openings 1 (62206), and the tooth openings 1 (62206) are meshingly connected to the gear 5 (62204); The top of the movable plate (62205) is connected to a transmission plate (62207), and the top of the transmission plate (62207) is integrally formed with a clamping plate (62208), the clamping plate (62208) is a semicircular arc structure, and the clamping plate (62208) is movably arranged in the rotating groove (6211).

8. The passive energy-saving aluminum alloy profile extrusion molding equipment according to claim 7 is characterized in that: The blowing assembly (621) comprises a support plate (62101) connected to the side wall of the fixed block (6202); an air duct (62102) is installed on the side wall of the support plate (62101); one end of the air duct (62102) is connected to an external air supply device; the other end of the air duct (62102) is connected to a curved pipe (62103); an output end of the curved pipe (62103) is movably connected to an inclined nozzle (62104); the inclined nozzle (62104) forms an inclined angle with the output end of the curved pipe (62103); The outer circumferential wall of the curved tube (62103) is connected to an outer circular plate (62105), a rolling groove 1 is provided on the inner circumferential wall of the outer circular plate (62105), an inner circular plate (62107) is movably arranged in the inner cavity of the outer circular plate (62105), a rolling groove 2 is provided on the outer circumferential wall of the inner circular plate (62107), a plurality of balls (62106) are movably arranged between the rolling groove 1 and the rolling groove 2, and the inner circular plate (62107) is rotatably matched with the outer circular plate (62105) through the balls (62106); The inner circular plate (62107) is arranged on the outer side wall of the inclined nozzle (62104), and the outer side wall of the inclined nozzle (62104) is also arranged with a plurality of tooth openings (62108), and the plurality of tooth openings (62108) are arranged in a ring array; The side wall of the curved tube (62103) is connected to a fan bin (62109), the inner cavity of the fan bin (62109) is in communication with the inner cavity of the curved tube (62103), the outer side wall of the outer circular plate (62105) is connected to a fixed seat (62110), a movable rod (62111) penetrates the side wall of the fixed seat (62110), the movable rod (62111) and the fixed seat (62110) are rotatably matched, one end of the movable rod (62111) penetrates the side wall of the curved tube (62103) and is rotatably matched, a plurality of fan blades (62112) are connected to the circumferential outer wall of the movable rod (62111), and the other end of the movable rod (62111) is connected to gear six (62113); The plurality of fan blades (62112) are arranged in the inner cavity of the fan bin (62109) and the inner cavity of the curved pipe (62103), and the gear six (62113) is meshingly connected with the tooth opening two (62108).

9. The passive energy-saving aluminum alloy profile extrusion molding equipment according to claim 8, characterized in that: The impurity removal component (63) comprises a pipe rack (6301) connected to the top of the operating table (1), and a square tube 1 (6302) and a square tube 2 (6303) are arranged on the top of the pipe rack (6301); a plurality of blowing ports 1 (6304) are arranged on the side wall at one end of the square tube 1 (6302), and a plurality of blowing ports 2 (6305) are arranged on the side wall at one end of the square tube 2 (6303); the blowing ports 1 (6304) and the blowing ports 2 (6305) are in opposite directions; the other end of the square tube 1 (6302) is connected to an external air supply device, and the other end of the square tube 2 (6303) is connected to an external air supply device.

10. The passive energy-saving aluminum alloy profile extrusion molding equipment according to claim 9, characterized in that: The feeding assembly (7) comprises a fixed frame (701) arranged at the bottom of the operating table (1), a fourth motor (702) is arranged at the bottom of the fixed frame (701), an output end of the fourth motor (702) is connected to a one-way screw rod (703), the one-way screw rod (703) is movably arranged at the bottom of the operating table (1), a lifting platform (704) is threadedly connected to the circumferential outer wall of the one-way screw rod (703), a side wall of the lifting platform (704) is slidably matched with the side wall of the fixed frame (701), and a material discharge trough (705) is arranged at the top of the lifting platform (704), and the material discharge trough (705) is an arc-shaped groove structure.

Images