Aluminum bottle preform extruding and stretching forming equipment and forming method

Abstract

The invention relates to the technical field of bottle preform processing, and discloses aluminum bottle preform extruding and stretching forming equipment and a forming method.The aluminum bottle preform extruding and stretching forming equipment comprises an extruding mechanism, the extruding mechanism further comprises a lower die, an upper die is arranged at the top of the lower die, and two first arc-shaped blocks are slidably connected to the inner wall of the lower die; a worker places the heated aluminum plate on the lower die, then the punching machine is started to stretch out, the upper die is driven to descend until the punching head makes contact with the aluminum plate, the aluminum plate is punched, the extruded aluminum plate is shaped through the fixing ring to form a bottle blank, meanwhile, when the punching head makes contact with the aluminum plate, the upper die also makes contact with the pushing rod, and therefore the bottle blank is formed. And the pushing rod is extruded, the pushing rod descends to make contact with the second spring reset rod, the second spring reset rod is extruded, and the first arc-shaped block is pushed to move till the first arc-shaped block supports the corner of the bottle preform, so that the stretching degree of the material at the position is relieved, and the risk of cracks or pull cracks caused by excessive stretching at the corner is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of bottle preform processing equipment, and in particular to an aluminum bottle preform extrusion stretching forming equipment and a forming method. Background Art

[0002] Aluminum bottles are widely used in food and beverage, cosmetics, medicine and chemical industries. They have good sealing and freshness preservation, which can ensure the quality and taste of products. For example, aluminum bottles can be used to package beer, beverages, perfumes, medicines and chemical products, etc. Aluminum bottles have a high recycling rate, the recycling process is relatively simple, and the impact on the environment is small. Aluminum bottles can be reused, which is in line with the concept of low carbon and environmental protection.

[0003] Among them, during the extrusion molding process of aluminum bottle preforms, the bottom corners of the preforms are often affected by the fluidity and stress distribution of the material. With the continuous movement of the punch, the bottom corners of the bottle may gradually become thinner, which may easily lead to cracks at the bottom of the preform during the molding process. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides an aluminum bottle preform extrusion stretching forming device, including an extrusion mechanism, the extrusion mechanism also includes a lower mold, an upper mold is arranged on the top of the lower mold, and two arc blocks are slidably connected to the inner wall of the lower mold; The reciprocating mechanism includes four placement grooves provided on the inner wall of the lower mold, the inner walls of the four placement grooves are rotatably connected with rotating rings, the four rotating rings are grouped in pairs, and the inner walls of the two groups of rotating rings are fixedly connected with gear rods; The cooling mechanism comprises an arc groove 1 arranged on the inner wall of the arc block 1, the inner walls of the two arc grooves 1 are both slidably connected with an arc plate 1, and the inner walls of the two arc grooves 1 are both fixedly connected with an arc connecting plate.

[0005] Preferably, the extrusion mechanism further comprises four fixing rods 1 fixedly connected to the top of the lower mold, the inner wall of the upper mold is slidably connected to the outer wall of the fixing rod 1, the top of the fixing rod 1 is fixedly connected to a punching machine, and the bottom output end of the punching machine is fixedly connected to the top of the upper mold; Among them, a punch head is fixedly connected to the bottom of the upper mold, an extrusion ring is arranged on the outer wall of the punch head, and four spring extrusion rods are fixedly connected to the top of the extrusion ring. The staff places the heated aluminum plate on the lower mold, and then starts the punching machine to extend it, driving the upper mold to descend, so that the punch head and the extrusion ring will descend, and the extrusion ring will first contact with the aluminum plate to extrude the aluminum plate, so that the aluminum plate cannot move when being stamped, until the punch head contacts with the aluminum plate and stamps the aluminum plate.

[0006] Preferably, the extrusion mechanism further comprises a fixing ring fixedly connected to the inner wall of the upper mold, the inner wall of the upper mold is slidably connected to the outer wall of the spring extrusion rod, the inner wall of the lower mold is provided with two sliding grooves, and the inner walls of the two sliding grooves are slidably connected to the push rods; Among them, the tops of the two push rods are fixedly connected with spring return rods 1, and the outer walls of the two spring return rods 1 are slidably connected with the inner wall of the lower mold. The extruded aluminum plate is shaped by the fixed ring to form a bottle embryo. At the same time, when the punch head contacts the aluminum plate, the upper mold will also contact the push rod to squeeze the push rod, so that the push rod is lowered, squeezing the spring return rod 1, and allowing the spring return rod 1 to accumulate rebound force.

[0007] Preferably, the extrusion mechanism also includes a spring return rod 2 fixedly connected to one side wall of the arc block, the outer walls of the two spring return rods 2 are slidably connected to the outer wall of the sliding groove, the bottoms of the two push rods are fixedly connected to an L-shaped rod, and the inner walls of the two L-shaped rods are slidably connected to a spring support block. When the push rod descends, it will contact the spring return rod 2. Since the contact surfaces of the push rod and the spring return rod 2 are both inclined surfaces, the push rod will smoothly squeeze the spring return rod 2, so that the spring return rod 2 moves toward the direction of the extrusion ring, pushing the arc block 1 to move until the arc block 1 is in contact with the punched bottle The arc block 1 contacts the corner of the preform to support the corner. After the arc block 1 contacts the preform, when the push rod descends, it will push the spring return rod 2 to descend, driving the arc block 1 to descend. At the same time, when the push rod descends, it will also drive the L-shaped rod to descend. Since the spring support block is in a compressed state, when the L-shaped rod descends, the rebound force of the spring support block will be released to support the arc block 1, thereby continuously supporting the corner of the preform, thereby slowing down the stretching degree of the material at this position, reducing the risk of cracks or splits at the corner due to excessive stretching, and effectively preventing the appearance of too thin areas at the corner.

[0008] Preferably, the reciprocating mechanism also includes a rack fixedly connected to the bottom of the L-shaped rod, the side walls of the two racks are meshed with the outer wall of the gear rod, the outer walls of the four rotating rings are fixedly connected with four fixed blocks, and the inner walls of the sixteen fixed blocks are slidably connected with spring push rods, and the force of the L-shaped rod descending will drive the rack to descend when the L-shaped rod descends, and the gear rod is driven to rotate, thereby rotating the rotating ring, driving the fixed blocks to rotate, and rotating the spring push rod.

[0009] Preferably, the reciprocating mechanism also includes four arc blocks 2 fixedly connected to the bottom of the inner wall of the lower mold, the outer walls of the sixteen spring push rods are fixedly connected with connecting blocks, and the inner walls of the four placement grooves are slidably connected with arc spring plates, which drive the connecting blocks to rotate. During the continuous rotation of the connecting blocks, the connecting blocks will contact the arc surface of the arc block 2, so that the spring push rods are squeezed and retracted into the fixed block to accumulate rebound force. The connecting blocks will also contact the inner wall of the placement groove during rotation, and the spring push rods are in a squeezed state until the connecting blocks are separated from the placement groove through the arc spring plate. At this time, the rebound force of the spring push rods will be released, allowing the spring push rods and the connecting blocks to return to their positions. As the arc block 1 continues to descend, the connecting block will contact the arc block 1. When the rebound force of the spring push rod is released, the connecting block contacts the arc block 1, and will slightly knock on the arc block 1, causing the arc block 1 to vibrate slightly.

[0010] Preferably, the cooling mechanism also includes an arc plate 2 slidably connected to the inner wall of the arc connecting plate, two spring return rods 3 are fixedly connected to the tops of the two arc plates 2, and the outer walls of the two spring return rods 3 are slidably connected to the inner wall of the arc block 1. The bottoms of the two arc plates 1 are fixedly connected to two fixing rods 2, and the tops of the two arc blocks 1 are each provided with a plurality of air jet holes 1. By utilizing the force of the movement of the fixing rod 2, when the connecting block lightly taps the arc block 1, the spring push rod will contact the fixing rod 2, lift the fixing rod 2, and drive the arc plate 1 to rise. When the arc plate 1 rises, it will squeeze the gas in the arc groove 1, and the squeezed gas will be blocked by the arc plate 2, thereby increasing the gas pressure. As the arc plate 1 continues to rise, the protrusion of the arc plate 1 will contact the bottom of the arc connecting plate, lifting the arc plate 2.

[0011] Preferably, the cooling mechanism also includes four arc grooves 2 opened on the inner wall of the lower mold, a plurality of air jet holes 2 are opened on the tops of the four arc grooves 2, the inner walls of the four arc grooves 2 are slidably connected to the arc block 3, the inner walls of the four arc blocks 3 are slidably connected to two spring blocks, and the side walls of the four arc blocks 3 are fixedly connected to two return springs. By utilizing the force of the movement of the arc block 1, when the arc block 1 returns to its original position, the arc block 3 will be squeezed to push the arc block 3 to move in the arc groove 2. As the arc block 3 moves, the rebound force of the spring block will be released, allowing the spring block to fit with the inner wall of the arc groove 2, so that when the arc block 3 and the spring block move, the gas in the arc groove 2 can be squeezed, and at the same time, the return spring is squeezed to accumulate the rebound force of the return spring, and the squeezed gas will enter the air jet hole 2, and be sprayed through the air jet hole 2 toward the contact surface between the arc block 1 and the bottle embryo, thereby accelerating the cooling speed.

[0012] A forming method of an aluminum bottle preform extrusion stretching forming device comprises the following steps: S1: Support at the corner; S2: Let the corner vibrate slightly; S3: Accelerate the cooling at corners.

[0013] The present invention has the following beneficial effects: (1) When the present invention is used, the staff will place the heated aluminum plate on the lower mold, and then start the punching machine to extend it, drive the upper mold to descend, and make the punching head and the extrusion ring descend. The extrusion ring will first contact the aluminum plate and extrude the aluminum plate, so that the aluminum plate cannot move when being punched, until the punching head contacts the aluminum plate and punches the aluminum plate. The extruded aluminum plate is shaped by the fixing ring to form a bottle embryo. At the same time, when the punching head contacts the aluminum plate, the upper mold will also contact the push rod and extrude the push rod, so that the push rod descends, extruding the spring return rod 1, so that the spring return rod 1 accumulates rebound force, and when the push rod descends, it will contact the spring return rod 2. Since the contact surfaces of the push rod and the spring return rod 2 are both inclined surfaces, the push rod will be squeezed smoothly. The spring return rod 2 is pressed to move the spring return rod 2 toward the extrusion ring, pushing the arc block 1 to move until the arc block 1 contacts the corner of the punched bottle preform to support the corner. After the arc block 1 contacts the bottle preform, when the push rod descends, it will push the spring return rod 2 to descend, driving the arc block 1 to descend. At the same time, when the push rod descends, it will also drive the L-shaped rod to descend. Since the spring support block is in a compressed state, when the L-shaped rod descends, the rebound force of the spring support block will be released to support the arc block 1, thereby continuously supporting the corner of the bottle preform, thereby reducing the stretching degree of the material at this position, reducing the risk of cracks or splits at the corner due to excessive stretching, and effectively preventing the appearance of too thin areas at the corner.

[0014] (2) The present invention utilizes the force of the L-shaped rod descending. When the L-shaped rod descends, it also drives the rack to descend, meshes with the gear rod, drives the gear rod to rotate, thereby causing the rotating ring to rotate, driving the fixed block to rotate, causing the spring push rod to rotate, and driving the connecting block to rotate. During the continuous rotation of the connecting block, the connecting block will contact the arc surface of the arc block 2, thereby squeezing the spring push rod and retracting it into the fixed block to accumulate rebound force. During the rotation process of the connecting block, it will also contact the inner wall of the placement groove, and the spring push rod will be in a squeezed state until the connecting block is The connecting block is separated from the placement groove through the arc spring plate. At this time, the rebound force of the spring push rod will be released, allowing the spring push rod and the connecting block to return to their positions. As the arc block 1 continues to descend, the connecting block will contact the arc block 1. When the rebound force of the spring push rod is released, the connecting block will contact the arc block 1, and will slightly knock the arc block 1, causing the arc block 1 to vibrate slightly. The vibration is transmitted to the corner of the bottle embryo through the arc block 1, reducing stress concentration, effectively preventing stress concentration at the corner, and reducing the possibility of cracking.

[0015] (3) The present invention utilizes the force of the movement of the second fixing rod. When the connecting block slightly knocks the arc block one, the spring push rod will contact the second fixing rod, lift the second fixing rod, and drive the arc plate one to rise. When the arc plate one rises, it will squeeze the gas in the arc groove one. The squeezed gas will be blocked by the second arc plate, thereby increasing the gas pressure. As the arc plate one continues to rise, the convex part of the first arc plate will contact the bottom of the arc connecting plate, lift the second arc plate, and allow the spring return rod three to accumulate rebound force. When the second arc plate is lifted, the gas is blocked and the gas enters the arc connecting plate and is sprayed from the first air injection hole toward the corner of the bottle preform, thereby accelerating the cooling of the corner of the bottle preform, thereby slowing down the flow of the material at the corner, helping to stabilize the corner in advance and effectively preventing excessive deformation of the corner.

[0016] (4) The present invention utilizes the force of the movement of the arc block 1. When the arc block 1 returns to its original position, it will squeeze the arc block 3 and push the arc block 3 to move in the arc groove 2. As the arc block 3 moves, the rebound force of the spring block will be released, allowing the spring block to fit with the inner wall of the arc groove 2, so that when the arc block 3 and the spring block move, they can squeeze the gas in the arc groove 2. At the same time, the return spring is squeezed to allow the return spring to accumulate rebound force. The squeezed gas will enter the air jet hole 2 and be sprayed toward the contact surface between the arc block 1 and the bottle preform through the air jet hole 2, thereby accelerating the cooling speed and effectively preventing the high temperature during the processing of the bottle preform. The temperature may be transferred to the arc block 1, resulting in that the temperature on the arc block 1 is difficult to quickly reduce during continuous production, resulting in a high temperature of the arc block 1, which may cause the temperature at the corner of the bottle preform to be cooled poorly, thereby maintaining a good cooling effect on the corner of the bottle preform. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0018] Figure 1 It is a schematic cross-sectional view of the overall structure of the present invention; Figure 2 It is a schematic diagram of the overall structure of the present invention; Figure 3 This is a cross-sectional schematic diagram of the lower mold of the present invention; Figure 4 For the present invention Figure 3 A is an enlarged schematic diagram; Figure 5 It is a schematic cross-sectional view of the internal structure of the lower mold of the present invention; Figure 6 For the present invention Figure 5A magnified schematic diagram of B; Figure 7 For the present invention Figure 5 A magnified schematic diagram of middle C; Figure 8 This is a schematic cross-sectional bottom view of the lower mold of the present invention; Fig. 9 For the present invention Figure 8 A magnified schematic diagram of D in the middle; Fig.10 It is a schematic diagram of the working process of the present invention.

[0019] In the accompanying drawings, the components represented by the reference numerals are listed as follows: In the figure: 1. extrusion mechanism; 101. lower die; 102. upper die; 103. fixed rod 1; 104. punch; 105. punch head; 106. extrusion ring; 107. spring extrusion rod; 108. fixed ring; 109. push rod; 110. spring return rod 1; 111. sliding groove; 112. arc block 1; 113. spring return rod 2; 114. L-shaped rod; 115. spring support block; 2. reciprocating mechanism; 201. placement groove; 202. rotating ring; 203. gear Wheel rod; 204, rack; 205, fixed block; 206, spring push rod; 207, connecting block; 208, arc block 2; 209, arc spring plate; 3, cooling mechanism; 301, arc groove 1; 302, arc plate 1; 303, arc connecting plate; 304, arc plate 2; 305, spring reset rod 3; 306, fixed rod 2; 307, jet hole 1; 308, arc groove 2; 309, jet hole 2; 310, arc block 3; 311, spring block; 312, reset spring. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] For example, see Figure 1 - Figure 4 The present invention is an aluminum bottle preform extrusion stretching forming device, comprising an extrusion mechanism 1, the extrusion mechanism 1 also comprises a lower mold 101, an upper mold 102 is arranged on the top of the lower mold 101, and two arc blocks 112 are slidably connected to the inner wall of the lower mold 101; The reciprocating mechanism 2 includes four placement grooves 201 provided on the inner wall of the lower mold 101, the inner walls of the four placement grooves 201 are all rotatably connected with rotating rings 202, the four rotating rings 202 are grouped in pairs, and the inner walls of the two groups of rotating rings 202 are all fixedly connected with gear rods 203; The cooling mechanism 3 comprises an arc groove 301 provided on the inner wall of the arc block 112, the inner walls of the two arc grooves 301 are both slidably connected with an arc plate 302, and the inner walls of the two arc grooves 301 are both fixedly connected with an arc connecting plate 303.

[0022] The extrusion mechanism 1 also includes four fixed rods 103 fixedly connected to the top of the lower mold 101, the inner wall of the upper mold 102 is slidably connected to the outer wall of the fixed rods 103, the top of the fixed rods 103 is fixedly connected to a punch 104, and the bottom output end of the punch 104 is fixedly connected to the top of the upper mold 102; Among them, a punch head 105 is fixedly connected to the bottom of the upper mold 102, an extrusion ring 106 is arranged on the outer wall of the punch head 105, and four spring extrusion rods 107 are fixedly connected to the top of the extrusion ring 106. The staff places the aluminum plate after heating on the lower mold 101, and then starts the punching machine 104 to extend it, driving the upper mold 102 to descend, so that the punch head 105 and the extrusion ring 106 descend, and the extrusion ring 106 will first contact with the aluminum plate and extrude the aluminum plate, so that the aluminum plate cannot move when being stamped, until the punch head 105 contacts with the aluminum plate and stamps the aluminum plate.

[0023] The extrusion mechanism 1 further includes a fixing ring 108 fixedly connected to the inner wall of the upper mold 102. The inner wall of the upper mold 102 is slidably connected to the outer wall of the spring extrusion rod 107. Two sliding grooves 111 are provided on the inner wall of the lower mold 101. The inner walls of the two sliding grooves 111 are slidably connected to the push rods 109. Among them, the tops of the two push rods 109 are fixedly connected with spring return rods 110, and the outer walls of the two spring return rods 110 are slidably connected with the inner wall of the lower mold 101. The extruded aluminum plate is shaped by the fixing ring 108 to form a bottle embryo. At the same time, when the punch head 105 contacts the aluminum plate, the upper mold 102 will also contact the push rods 109 to squeeze the push rods 109, so that the push rods 109 are lowered, squeezing the spring return rods 110, and allowing the spring return rods 110 to accumulate resilience.

[0024] The extrusion mechanism 1 also includes a spring return rod 113 fixedly connected to the side wall of the arc block 112, the outer walls of the two spring return rods 113 are slidably connected to the outer wall of the sliding groove 111, the bottoms of the two push rods 109 are fixedly connected with L-shaped rods 114, and the inner walls of the two L-shaped rods 114 are slidably connected with spring support blocks 115. When the push rod 109 descends, it will contact the spring return rod 113. Since the contact surfaces of the push rod 109 and the spring return rod 113 are both inclined surfaces, the push rod 109 will smoothly squeeze the spring return rod 113, so that the spring return rod 113 moves toward the extrusion ring 106, pushing the arc block 112 to move until the arc block 112 is moved. 112 contacts with the corner of the punched preform to support the corner. After the arc block 112 contacts with the preform, when the push rod 109 descends, the spring return rod 113 will be pushed down, driving the arc block 112 to descend. At the same time, when the push rod 109 descends, the L-shaped rod 114 will also be driven down. Since the spring support block 115 is in a compressed state, when the L-shaped rod 114 descends, the resilience of the spring support block 115 will be released to support the arc block 112, thereby continuously supporting the corner of the preform, thereby slowing down the stretching degree of the material at this position, reducing the risk of cracks or ruptures at the corner due to excessive stretching, and effectively preventing the appearance of too thin areas at the corner.

[0025] For example 2, please refer to Figure 5 - Fig.10 The present invention is an aluminum bottle preform extrusion and stretching forming device. On the basis of the first embodiment, the reciprocating mechanism 2 also includes a rack 204 fixedly connected to the bottom of the L-shaped rod 114, and the side walls of the two racks 204 are meshed and connected with the outer wall of the gear rod 203. The outer walls of the four rotating rings 202 are fixedly connected with four fixed blocks 205, and the inner walls of the sixteen fixed blocks 205 are slidably connected with spring push rods 206. By utilizing the downward force of the L-shaped rod 114, when the L-shaped rod 114 descends, it will also drive the rack 204 to descend, mesh with the gear rod 203, and drive the gear rod 203 to rotate, so that the rotating ring 202 rotates, drives the fixed block 205 to rotate, and allows the spring push rod 206 to rotate.

[0026] The reciprocating mechanism 2 also includes four arc blocks 208 fixedly connected to the bottom of the inner wall of the lower mold 101, and the outer walls of the sixteen spring push rods 206 are fixedly connected with connecting blocks 207. The inner walls of the four placement grooves 201 are slidably connected with arc spring plates 209, which drive the connecting blocks 207 to rotate. During the continuous rotation of the connecting blocks 207, the connecting blocks 207 will contact the arc surface of the arc block 208, so that the spring push rods 206 are squeezed and retracted into the fixed block 205 to accumulate rebound force. During the rotation process of the connecting blocks 207, they will also contact the placement grooves 201. The spring push rod 206 contacts the inner wall of the arc block 112, and is in an extruded state until the connecting block 207 passes through the arc spring plate 209 and is separated from the placement groove 201. At this time, the rebound force of the spring push rod 206 is released, allowing the spring push rod 206 and the connecting block 207 to return to their original positions. As the arc block 112 continues to descend, the connecting block 207 contacts the arc block 112. When the rebound force of the spring push rod 206 is released, the connecting block 207 contacts the arc block 112, and the arc block 112 is slightly knocked, causing the arc block 112 to vibrate slightly.

[0027] The cooling mechanism 3 also includes an arc plate 2 304 slidably connected to the inner wall of the arc connecting plate 303, two spring return rods 305 are fixedly connected to the top of the two arc plates 2 304, the outer walls of the two spring return rods 305 are slidably connected to the inner wall of the arc block 1 12, the bottoms of the two arc plates 1 302 are fixedly connected to two fixing rods 2 306, and the tops of the two arc blocks 1 12 are provided with a plurality of jet holes 1 307. By utilizing the force of the fixed rods 2 306 moving, when the connecting block 1 When arc block 112 is lightly knocked by 207, spring push rod 206 will contact fixing rod 2 306, lift fixing rod 2 306, and drive arc plate 1 302 to rise. When arc plate 1 302 rises, it will squeeze the gas in arc groove 1 301. The squeezed gas will be blocked by arc plate 2 304, thereby increasing the gas pressure. As arc plate 1 302 continues to rise, the protrusion of arc plate 1 302 will contact the bottom of arc connecting plate 303, and lift arc plate 2 304.

[0028] The cooling mechanism 3 also includes four arc grooves 2 308 opened on the inner wall of the lower mold 101, and a plurality of air injection holes 2 309 are opened on the top of the four arc grooves 2 308. The inner walls of the four arc grooves 2 308 are slidably connected to the arc block 3 310. The inner walls of the four arc blocks 310 are slidably connected to two spring blocks 311. The side walls of the four arc blocks 310 are fixedly connected to two return springs 312. When the arc block 1 112 returns to its original position, the arc block 3 310 is squeezed to push the arc block 311 to return to its original position. The arc block 310 moves in the arc groove 2 308. As the arc block 310 moves, the resilience of the spring block 311 is released, so that the spring block 311 fits with the inner wall of the arc groove 2 308, so that when the arc block 310 and the spring block 311 move, the gas in the arc groove 2 308 can be squeezed. At the same time, the return spring 312 is squeezed to accumulate the resilience of the return spring 312. The squeezed gas enters the air injection hole 2 309 and is ejected toward the contact surface between the arc block 1 112 and the bottle embryo through the air injection hole 2 309, thereby accelerating the cooling speed.

[0029] There is no limitation on the number of the above components, and relevant technicians in the field can freely set them according to actual needs, as long as the above components are installed at the connection positions of the corresponding components.

[0030] The forming method of the aluminum bottle preform extrusion stretching forming equipment comprises the following steps: S1: Support at the corner; S2: Let the corner vibrate slightly; S3: Accelerate the cooling at corners.

[0031] A specific application of this embodiment is as follows: when the present invention is used, the staff will place the heated aluminum plate on the lower mold 101, and then start the punching machine 104 to extend, drive the upper mold 102 to descend, and make the punching head 105 and the extrusion ring 106 descend. The extrusion ring 106 will first contact with the aluminum plate to extrude the aluminum plate, so that the aluminum plate cannot move when being punched, until the punching head 105 contacts with the aluminum plate and punches the aluminum plate. The extruded aluminum plate is shaped by the fixing ring 108 to form a bottle embryo. At the same time, when the punching head 105 contacts with the aluminum plate, the upper mold 102 will also contact with the push rod 109, extrude the push rod 109, let the push rod 109 descend, extrude the spring return rod 110, and let the spring return rod 110 accumulate resilience. When the push rod 109 descends, it will contact with the spring return rod 2 113. Since the contact surfaces of the push rod 109 and the spring return rod 2 113 are both inclined surfaces, Therefore, the push rod 109 will smoothly squeeze the spring return rod 113, so that the spring return rod 113 moves toward the extrusion ring 106, and push the arc block 112 to move until the arc block 112 contacts the corner of the punched bottle embryo, and supports the corner. After the arc block 112 contacts the bottle embryo, when the push rod 109 descends, it will push the spring return rod 113 to descend, driving the arc block 112 to descend. At the same time, when the push rod 109 descends, it will also drive the L-shaped rod 114 to descend. Since the spring support block 115 is in a compressed state, when the L-shaped rod 114 descends, the resilience of the spring support block 115 will be released, supporting the arc block 112, thereby continuously supporting the corner of the bottle embryo, thereby reducing the stretching degree of the material at this part, reducing the risk of cracks or tearing at the corner due to excessive stretching, and effectively preventing the appearance of too thin areas at the corner; Secondly, when the L-shaped rod 114 descends, it will also drive the rack 204 to descend, mesh with the gear rod 203, drive the gear rod 203 to rotate, thereby rotating the rotating ring 202, driving the fixed block 205 to rotate, allowing the spring push rod 206 to rotate, and driving the connecting block 207 to rotate. During the continuous rotation of the connecting block 207, the connecting block 207 will contact the arc surface of the arc block 208, so that the spring push rod 206 is squeezed and retracted into the fixed block 205 to accumulate resilience. During the rotation process of the connecting block 207, it will also contact the inner wall of the placement groove 201, and the spring push rod 206 is in a squeezed state until the connecting block 207 is After the arc spring plate 209 is separated from the placement groove 201, the spring push rod 206 will release its resilience, allowing the spring push rod 206 and the connecting block 207 to return to their original positions. As the arc block 112 continues to descend, the connecting block 207 will contact the arc block 112. When the spring push rod 206's resilience is released, the connecting block 207 will contact the arc block 112, and will slightly knock the arc block 112, causing the arc block 112 to vibrate slightly. The vibration is transmitted to the corner of the preform through the arc block 112, thereby reducing stress concentration, effectively preventing stress concentration at the corner, and reducing the possibility of cracking. When the connecting block 207 slightly knocks the arc block 112, the rack 204 will separate from the gear rod 203, so that the rotating ring 202 stops rotating, and the fixed block 205 stops rotating, preventing the connecting block 207 from generating excessive impact force; Secondly, when the connecting block 207 slightly knocks the arc block 112, the spring push rod 206 will contact the fixing rod 2 306, lift the fixing rod 2 306, and drive the arc plate 1 302 to rise. When the arc plate 1 302 rises, it will squeeze the gas in the arc groove 1 301. The squeezed gas will be blocked by the arc plate 2 304, so that the gas pressure increases. As the arc plate 1 302 continues to rise, the convex part of the arc plate 1 302 will contact the bottom of the arc connecting plate 303, and lift the arc plate 2 304, so that the spring return rod 305 accumulates resilience. When the arc plate 2 304 is lifted, the gas is blocked and the gas enters the arc connecting plate 303 and sprays from the air jet hole 1 307 toward the corner of the bottle embryo, accelerating the cooling of the corner of the bottle embryo, thereby slowing down the flow of the material at the corner, which helps to stabilize the corner in advance and effectively prevent excessive deformation of the corner. When the preform is stamped, the punch 104 is retracted, driving the upper mold 102 to rise, allowing the punch head 105 and the extrusion ring 106 to rise, the extrusion force on the push rod 109 disappears, and the resilience of the spring return rod 110 is released, driving the push rod 109 to rise. When the push rod 109 rises, as the push rod 109 continues to rise, the bottom of the push rod 109 will contact the outer wall of the spring return rod 2 113, pushing the spring return rod 2 113 to rise, driving the arc block 112 to rise, driving the L-shaped rod 114 to rise, squeezing the spring support block 115, so that the spring support block 115 is in a compressed state again. At the same time, the L-shaped rod 114 The movable rack 204 rises, allowing the gear rod 203 to rotate. At this time, the rotation direction of the gear rod 203 is opposite to the downward rotation direction. When the rotating ring 202 drives the connecting block 207 to rotate, the connecting block 207 will contact the arc spring plate 209, pushing the arc spring plate 209 to move away from the punch head 105, allowing the arc spring plate 209 to accumulate resilience, so that the connecting block 207 contacts the inner wall of the placement groove 201, squeezing the connecting block 207, allowing the rotating ring 202 to rotate smoothly, so that the push rod 109 can be smoothly reset until the push rod 109 returns to its original position. At this time, the resilience of the spring reset rod 113 will be released, driving the arc block 112 to return to its original position; Secondly, when the arc block 112 returns to its original position, the arc block 310 is squeezed, and the arc block 310 is pushed to move in the arc groove 2 308. As the arc block 310 moves, the resilience of the spring block 311 is released, so that the spring block 311 fits with the inner wall of the arc groove 2 308, so that when the arc block 310 and the spring block 311 move, the gas in the arc groove 2 308 can be squeezed, and at the same time, the reset spring 312 is squeezed to accumulate the resilience of the reset spring 312. The squeezed gas will enter the second air jet hole 309, and will be ejected toward the contact surface between the arc block 112 and the preform through the second air jet hole 309, thereby accelerating the cooling speed and effectively preventing the high temperature during the processing of the preform. The temperature may be transferred to the arc block 112, resulting in that the temperature on the arc block 112 is difficult to quickly reduce during continuous production, resulting in a high temperature of the arc block 112, which may cause the temperature at the corner of the preform to be cooled poorly, thereby maintaining a good cooling effect on the corner of the preform.

[0032] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An aluminum bottle preform extrusion stretching device, comprising an extrusion mechanism (1), the extrusion mechanism (1) further comprising a lower mold (101), an upper mold (102) being arranged on the top of the lower mold (101), two arc blocks (112) being slidably connected to the inner wall of the lower mold (101), characterized in that: Also includes: A reciprocating mechanism (2), the reciprocating mechanism (2) comprising four placement grooves (201) formed on the inner wall of the lower mold (101), the inner walls of the four placement grooves (201) being rotatably connected to rotating rings (202), the four rotating rings (202) being arranged in groups of two, and the inner walls of the two groups of rotating rings (202) being fixedly connected to gear rods (203); A cooling mechanism (3), the cooling mechanism (3) comprising an arc-shaped groove (301) provided on the inner wall of an arc-shaped block (112), the inner walls of two arc-shaped grooves (301) being slidably connected to an arc-shaped plate (302), and the inner walls of two arc-shaped grooves (301) being fixedly connected to an arc-shaped connecting plate (303).

2. The aluminum bottle preform extrusion and stretching forming equipment according to claim 1, characterized in that: The extrusion mechanism (1) further comprises four fixing rods (103) fixedly connected to the top of the lower mold (101); the inner wall of the upper mold (102) is slidably connected to the outer wall of the fixing rods (103); the top of the fixing rods (103) is fixedly connected to a punch (104); and the bottom output end of the punch (104) is fixedly connected to the top of the upper mold (102); The bottom of the upper die (102) is fixedly connected to a punch head (105), an extrusion ring (106) is provided on the outer wall of the punch head (105), and the top of the extrusion ring (106) is fixedly connected to four spring extrusion rods (107).

3. The aluminum bottle preform extrusion and stretching forming equipment according to claim 2, characterized in that: The extrusion mechanism (1) further comprises a fixing ring (108) fixedly connected to the inner wall of the upper mold (102); the inner wall of the upper mold (102) is slidably connected to the outer wall of the spring extrusion rod (107); the inner wall of the lower mold (101) is provided with two sliding grooves (111); the inner walls of the two sliding grooves (111) are slidably connected to a push rod (109); The tops of the two push rods (109) are fixedly connected to a spring return rod 1 (110), and the outer walls of the two spring return rods 1 (110) are slidably connected to the inner wall of the lower mold (101).

4. The aluminum bottle preform extrusion and stretching forming equipment according to claim 3 is characterized by: The squeezing mechanism (1) further comprises a second spring return rod (113) fixedly connected to the side wall of the first arc block (112), the outer walls of the two second spring return rods (113) being slidably connected to the outer wall of the sliding groove (111), the bottoms of the two push rods (109) being fixedly connected to an L-shaped rod (114), and the inner walls of the two L-shaped rods (114) being slidably connected to a spring support block (115).

5. The aluminum bottle preform extrusion and stretching forming equipment according to claim 4, characterized in that: The reciprocating mechanism (2) further comprises a rack (204) fixedly connected to the bottom of the L-shaped rod (114); the side walls of the two racks (204) are meshedly connected to the outer wall of the gear rod (203); the outer walls of the four rotating rings (202) are fixedly connected to four fixed blocks (205); and the inner walls of the sixteen fixed blocks (205) are slidably connected to spring push rods (206).

6. The aluminum bottle preform extrusion and stretching forming equipment according to claim 5, characterized in that: The reciprocating mechanism (2) further comprises four arc-shaped blocks (208) fixedly connected to the bottom of the inner wall of the lower mold (101), the outer walls of the sixteen spring push rods (206) are all fixedly connected to connecting blocks (207), and the inner walls of the four placement grooves (201) are all slidably connected to arc-shaped spring plates (209).

7. The aluminum bottle preform extrusion and stretching forming equipment according to claim 6, characterized in that: The cooling mechanism (3) further comprises an arc plate 2 (304) slidably connected to the inner wall of the arc connecting plate (303); the tops of the two arc plates 2 (304) are fixedly connected to two spring return rods 3 (305); the outer walls of the two spring return rods 3 (305) are slidably connected to the inner wall of the arc block 1 (112); the bottoms of the two arc plates 1 (302) are fixedly connected to two fixed rods 2 (306); and the tops of the two arc blocks 1 (112) are provided with a plurality of jet holes 1 (307).

8. The aluminum bottle preform extrusion and stretching forming equipment according to claim 7, characterized in that: The cooling mechanism (3) further comprises four arc grooves (308) formed on the inner wall of the lower mold (101), a plurality of jet holes (309) being formed on the top of each of the four arc grooves (308), the inner walls of each of the four arc grooves (308) being slidably connected to an arc block (310), the inner walls of each of the four arc blocks (310) being slidably connected to two spring blocks (311), and the side walls of each of the four arc blocks (310) being fixedly connected to two return springs (312).

9. A forming method of an aluminum bottle preform extrusion stretching forming device, using the aluminum bottle preform extrusion stretching forming device as claimed in claim 8, characterized in that: The following steps are included: S1: Support at the corner; S2: Let the corner vibrate slightly; S3: Accelerate the cooling at corners.

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