Air spring forming machine

Abstract

The application discloses an air spring forming machine and relates to the technical field of air spring manufacturing, solves the problem of poor applicability of the existing air spring forming machine, improves work efficiency, and specifically has the following arrangement: a rack, a tailstock and a main machine which are oppositely arranged on the top of the rack, the tailstock is slidably connected with the rack, the side of the tailstock close to the main machine is provided with a turnup and turndown mechanism for installing a steel ring and shrinking and turn-downing the end of an air spring tire blank, the tailstock is connected with the turnup and turndown mechanism through a plurality of air cylinders, the main machine is provided with a main shaft which is driven by a motor, the main shaft horizontally extends to the turnup and turndown mechanism, a forming drum is fixedly arranged on the main shaft, the end of the forming drum away from the turnup and turndown mechanism is provided with a drum shoe for supporting the end of the air spring, a steel ring transmission ring and a push ring for turn-downing the end of the air spring tire blank are sequentially arranged between the forming drum and the main machine, the main shaft sequentially passes through the push ring and the steel ring transmission ring, and the push ring and the steel ring transmission ring are both slidably arranged on the rack.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of air spring manufacturing, in particular to an air spring forming machine. BACKGROUND

[0002] Air spring is a device that fills compressed air in a telescopic closed container, and realizes elastic action by using the compressibility of air. It is widely used in commercial vehicles, buses, rail vehicles, machine equipment and self-adjusting air suspension of building foundation.

[0003] In the forming process of air spring, especially E4882 / E4884 air spring, the diameters of the two ends of the air spring are different, so different diameter and structure of the wire ring need to be used. The existing air spring forming machine is mainly used for the preparation of air springs with the same size at both ends, and cannot meet the forming needs of E4882 / E4884 air spring. Manual transfer processing is needed between multiple air spring forming machines, which is labor-intensive and low in work efficiency. SUMMARY

[0004] In view of the deficiencies of the prior art, the purpose of the present application is to provide an air spring forming machine, which is provided with a positive and reverse wrapping mechanism and a forming drum opposite to each other. The positive and reverse wrapping mechanism can install, shrink and reverse wrap the end of the air spring. The forming drum can support the other end of the air spring. The steel ring transmission ring and the push ring can wrap the supported end with a steel ring and reverse wrap it. The air spring forming machine can process and form the two ends with different sizes at the same time, and solve the problem of poor applicability of the existing air spring forming machine.

[0005] In order to achieve the above purpose, the present application is realized by the following technical scheme:

[0006] In the first aspect, the present application provides an air spring forming machine, which comprises a rack, a tailstock and a main machine arranged opposite to each other on the top of the rack. The tailstock is connected with the rack through sliding connection. The side of the tailstock close to the main machine is provided with a positive and reverse wrapping mechanism for installing a steel ring and shrinking and reverse wrapping the end of the air spring. The tailstock is connected with the positive and reverse wrapping mechanism through a plurality of air cylinders. The main machine is provided with a main shaft driven by a motor. The main shaft extends horizontally to the positive and reverse wrapping mechanism, and a forming drum is fixed on the main shaft. The end of the forming drum away from the positive and reverse wrapping mechanism is provided with a drum shoe for supporting the end of the air spring. A steel ring transmission ring and a push ring for reverse wrapping the end of the air spring are arranged between the forming drum and the main machine in sequence. The main shaft passes through the push ring and the steel ring transmission ring in sequence. The push ring and the steel ring transmission ring are both arranged on the rack through sliding connection.

[0007] As a further implementation manner, a lower pressing roller is arranged below the forming drum. The lower pressing roller is arranged on the rack through sliding connection. The lower pressing roller is provided with air cylinders for driving the horizontal movement and vertical lifting of the lower pressing roller.

[0008] As a further implementation manner, the positive and reverse wrapping mechanism is provided with a first support frame and a pushing seat, the first support frame and the pushing seat are slidingly arranged on the rack, the pushing seat is located between the first support frame and the tail seat, the first support frame is fixedly arranged with a ring-shaped pushing disc on the side close to the forming drum, a ring-shaped buckle disc is coaxially arranged in the pushing disc, an installation shaft is coaxially arranged in the buckle disc, a plurality of finger-shaped pieces are uniformly arranged on the installation shaft along the ring direction, a capsule is fixedly arranged on the end of the installation shaft close to the forming drum, the pushing seat, the pushing disc, the buckle disc and the installation shaft are connected with the telescopic rods of the corresponding cylinders on the tail seat, and the capsule is connected with the gas supply unit in the tail seat.

[0009] As a further implementation manner, the buckle disc is provided with a protrusion for installing the steel ring on the end close to the forming drum along the ring direction, the width of the protrusion is smaller than the width of the steel ring, and the finger-shaped piece is in a state of being raised in a free state.

[0010] As a further implementation manner, the forming drum is composed of a first drum surface and a second drum surface wrapped outside the main shaft, the first drum surface and the second drum surface are sequentially arranged along the length direction of the main shaft, the end of the first drum surface close to the positive and reverse wrapping mechanism is an open structure allowing the capsule to extend in, and the end has a drum shoulder with a chamfered shape, the inner wall of the first drum surface is fixedly connected with the main shaft through the oppositely arranged support sealing pieces, a plurality of air vents for outward air exhaust are spaced apart along the ring direction of the first drum surface, and the air vents are located between two adjacent support sealing pieces.

[0011] As a further implementation manner, the second drum surface is composed of a drum surface main body in a cylindrical shape and a plurality of drum tiles, a plurality of installation grooves for installing the drum tiles are spaced apart along the ring direction of the drum surface main body, one end of the drum tile is hingedly connected with the installation groove, a pull pin driven by a cylinder is sleeved on the main shaft, and the pull pin drives the drum tile to outwardly expand or be retracted into the installation groove through a connecting rod.

[0012] As a further implementation manner, the steel ring transmission ring is driven to move along the length direction of the rack by the cylinder, the steel ring transmission ring is composed of a first ring body fixedly arranged on the second support frame, a driving disc rotationally arranged in the first ring body, a guide fixed seat fixedly arranged on the first ring body along the ring direction, and a steel ring fixed seat movably arranged in the guide fixed seat, the driving disc is driven to rotate by the cylinder, the guide fixed seat is adjacent to the forming drum, the steel ring fixed seat is connected with a long strip-shaped through hole obliquely arranged on the driving disc through a second bearing, and the long strip-shaped through hole is spaced apart along the ring direction.

[0013] As a further implementation manner, the first ring body limits the position of the driving disc through a first bearing, and the first bearing is spaced apart along the ring direction of the first ring body.

[0014] As a further implementation manner, one end of the rim fixing seat in contact with the rim is in an arc structure, and an L-shaped groove is formed in one side of the arc structure in contact with the rim.

[0015] As a further implementation manner, the pushing ring is driven to move along the length direction of the rack by the air cylinder, the pushing ring is composed of a second ring body fixedly arranged on the third support frame and a plurality of reverse wrapping fingers arranged on the second ring body in a ring direction, the reverse wrapping fingers are close to the rim transfer ring, the reverse wrapping fingers are hinged to the second ring body, and a plurality of air cylinders for driving the reverse wrapping fingers to perform opening and closing movements are further fixedly arranged on the second ring body.

[0016] The beneficial effects of the present application are as follows:

[0017] (1) The present application oppositely arranges the positive and negative wrapping mechanisms and the forming drum, the positive and negative wrapping mechanisms can install the rim on the end of the air spring, shrink and wrap, the forming drum can support the other end of the air spring, cooperate with the rim transfer ring and the pushing ring to sleeve the rim on the supported end and wrap, can simultaneously install the rims of different sizes on the two ends of the air spring and perform the wrapping work, greatly reduces the labor intensity and improves the work efficiency.

[0018] (2) The plurality of air exhaust vent holes are arranged on the drum body of the first drum surface in a ring direction, the high-pressure gas can be used to separate the inner wall of the air spring from the outer wall of the forming drum, so as to facilitate the manual taking of the air spring from the forming drum.

[0019] (3) The present application is provided with a pressing roller, the pressing roller can change its position according to the requirement, so as to roll the end of the wrapped air spring, improve the bonding firmness of the end of the air spring, and ensure the roundness of the end of the air spring. BRIEF DESCRIPTION OF DRAWINGS

[0020] The drawings accompanying the specification of the present application form a part thereof, serve to provide further understanding of the present application, and together with the description of the exemplary embodiments of the present application and the explanation thereof serve to explain the present application, and do not constitute an improper limitation of the present application.

[0021] Figure 1 is a whole structure schematic view of an air spring forming machine according to one or more embodiments of the present application;

[0022] Figure 2 is a structure schematic view of a positive and negative wrapping mechanism according to one or more embodiments of the present application;

[0023] Figure 3 is a cross-sectional structure schematic view of a forming drum according to one or more embodiments of the present application;

[0024] Figure 4 is a front view structure schematic view of a rim transfer ring according to one or more embodiments of the present application;

[0025] Figure 5 is a schematic view of the rear structure of the steel ring transfer ring according to one or more embodiments of the present application;

[0026] Figure 6 is a schematic view of the structure of the push ring according to one or more embodiments of the present application;

[0027] In the drawings: the mutual spacing or size is exaggerated for showing the position of each part, and the schematic view is only for illustration;

[0028] 1, frame; 2, tailstock;

[0029] 3, positive and negative wrapping mechanism; 3.1, first support frame; 3.2, buckle ring disc; 3.3, capsule; 3.4, finger-shaped piece; 3.5, push disc; 3.6, push seat; 3.7, first air cylinder; 3.8, second air cylinder; 3.9, third air cylinder; 3.10, protrusion; 3.11, mounting shaft;

[0030] 4, forming drum; 4.1, left steel ring; 4.2, first drum surface; 4.3, second drum surface; 4.4, right steel ring; 4.5, drum tile; 4.6, draw pin; 4.7, first connecting rod; 4.8, drum surface main body; 4.9, air hole; 4.10, support sealing element;

[0031] 5, down-pressing roller; 5.1, support table; 5.2, pressing roller; 5.3, fourth air cylinder; 5.4, fifth air cylinder;

[0032] 6, steel ring transfer ring; 6.1, first ring body; 6.2, guide fixed seat; 6.3, steel ring fixed seat; 6.4, sixth air cylinder; 6.5, seventh air cylinder; 6.6, first adjusting nut; 6.7, driving disc; 6.8, second connecting rod; 6.9, first bearing; 6.10, second bearing; 6.11, second support frame

[0033] 7, push ring; 7.1, third support frame; 7.2, negative wrapping finger; 7.3, eighth air cylinder; 7.4, second ring body; 7.5, ninth air cylinder; 7.6, second adjusting nut;

[0034] 8, main machine, 8.1, main shaft. DETAILED DESCRIPTION

[0035] It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the application. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0036] As described in the background section, the forming process of air springs, especially E4882 / E4884 air springs, involves air springs with different diameters at both ends. This necessitates the use of steel wire rings with different diameters and structures. However, existing air spring forming machines are mostly designed for air springs with the same dimensions at both ends, which cannot meet the forming requirements of E4882 / E4884 air springs. This necessitates manual transfer of E4882 / E4884 air springs between multiple air spring forming machines, resulting in high labor intensity and low work efficiency. To address these technical problems, this invention proposes an air spring forming machine.

[0037] Example 1

[0038] In a typical embodiment of the present invention, such as Figures 1-6 As shown, an air spring forming machine is proposed, including a frame 1 and a tailstock 2, a forward and reverse wrapping mechanism 3, a forming drum 4, a steel ring transfer ring 6, a push ring 7 and a main unit 8 arranged sequentially along the length of the frame 1. A lower pressure roller 5 is provided below the imaging drum 4, and slide rails are provided on both sides of the top of the frame 1 along its length.

[0039] The tailstock 2 is slidably mounted at one end of the frame 1, and the main unit 8 is fixedly mounted at the other end of the frame 1. The tailstock 2 is connected to the forward and reverse packaging mechanism 3 through several cylinders to drive the forward and reverse packaging mechanism 3 to move along the length of the frame 1 and to drive the operation of each functional component of the forward and reverse packaging mechanism 3. The main unit 8 consists of a chassis, a main motor, a transmission mechanism, a main shaft 8.1, etc. The main motor is a variable frequency motor driven by a synchronous belt. The main motor is connected to the horizontally mounted main shaft 8.1 to drive the rotation of the main shaft 8.1. The main shaft 8.1 is arranged opposite to the forward and reverse packaging mechanism 3. The forming drum 4 is fixedly mounted on the main shaft 8.1 and can rotate under the drive of the main shaft 8.1. The steel ring transmission ring 6 and the push ring 7 are arranged on the side of the forming drum 4 close to the main unit 8.

[0040] For ease of explanation, this embodiment uses Figure 1 The tailstock 2 is located at the left end of the frame 1, and the main unit 8 is located at the right end of the frame 1. From left to right on the frame 1 are the tailstock 2, the forward and reverse wrapping mechanism 3, the forming drum 4, the steel ring transfer ring 6, the push ring 7, and the main unit 8.

[0041] like Figure 2 As shown, the forward and reverse packaging mechanism 3 consists of a first support frame 3.1, a buckle plate 3.2, a capsule 3.3, a finger-shaped piece 3.4, a push plate 3.5, a push seat 3.6, and several cylinders. The bottom of the first support frame 3.1 is fixed with a slider that cooperates with the top slide rail of the frame 1. The first support frame 3.1 is slidably positioned on the top of the frame 1. The push seat 3.6 is located on the left side of the first support frame 3.1 and is also slidably positioned on the top of the frame 1. It is mainly used to drive the movement of the buckle plate 3.2.

[0042] The push disc 3.5 is a ring structure, and is fixedly arranged on the right side of the first support frame 3.1. The buckle disc 3.2 is also a ring structure, and the outer diameter of the buckle disc 3.2 is smaller than the inner diameter of the push disc 3.5. The buckle disc 3.2 is coaxially arranged inside the push disc 3.5. The right side of the buckle disc 3.5 is fixedly provided with a protrusion 3.10 along the ring direction. The outer diameter of the protrusion 3.10 is the same as the inner diameter of the left steel ring 4.1 of the air spring, and the protrusion 3.10 is mainly used for mounting the left steel ring 4.1. The width of the protrusion 3.10 is smaller than the width of the left steel ring 4.1, so that the left steel ring 4.1 can be partially in contact with the rubber strip at the end of the air spring, so as to facilitate the left steel ring 4.1 to be separated from the protrusion 3.10.

[0043] The installation shaft 3.11 is coaxially arranged in the buckle disc 3.2. The diameter of the installation shaft 3.11 is smaller than the inner diameter of the buckle disc 3.2. The capsule 3.3 is fixedly arranged on the right side of the installation shaft 3.11 and coaxially arranged with the installation shaft 3.11. The left side of the installation shaft 3.11 is connected with the cylinder corresponding to the tailstock 2. The tailstock 2 is provided with a gas supply unit connected with the capsule 3.3 through a pipeline, which is used to control the expansion and contraction of the capsule 3.3.

[0044] The finger-shaped pieces 3.4 are arranged between the installation shaft 3.11 and the buckle disc 3.2. The finger-shaped pieces 3.4 are evenly arranged along the ring direction of the installation shaft 3.11. The left ends of all the finger-shaped pieces 3.4 are fixedly connected with a mounting ring. The inner diameter of the mounting ring is the same as the outer diameter of the installation shaft 3.11. The mounting ring is sleeved on the installation shaft 3.11 and can reciprocate along the axial direction of the installation shaft 3.11. The finger-shaped pieces 3.4 can be extended out of the buckle disc 3.2 or pulled back under the action of the first cylinder 3.7.

[0045] The finger-shaped pieces 3.4 are in a sheet structure, and are in a state of being raised in a free state. Therefore, when the finger-shaped pieces 3.4 are extended out of the buckle disc 3.2, the finger-shaped pieces 3.4 on the ring direction of the installation shaft 3.11 will expand outward (i.e. in a direction away from the axis of the installation shaft 3.11). When the finger-shaped pieces 3.4 are pulled back into the buckle disc 3.2, the finger-shaped pieces 3.4 will be in contact with the outer surface of the installation shaft 3.11 under the action of the buckle disc 3.2.

[0046] The first cylinder 3.7, the second cylinder 3.8 and the third cylinder 3.9 are fixedly arranged on the tailstock 2. The piston rod of the first cylinder 3.7 is fixedly connected with the mounting ring, and is used to drive the reciprocating movement of the mounting ring. The left end of the buckle disc 3.2 is fixedly arranged on the push seat 3.6. The piston rod of the second cylinder 3.8 is fixedly connected with the push seat 3.6, and is used to drive the reciprocating movement of the buckle disc 3.2. The piston rod of the third cylinder 3.9 is fixedly connected with the left side of the first support frame 3.1, and is used to drive the reciprocating movement of the first support frame 3.1, and further drive the reciprocating movement of the push disc 3.5.

[0047] It should be noted that the ring buckle disc 3.2, the capsule 3.3, the push disc 3.5 and the like need to be coaxially arranged with the main shaft 8.1.

[0048] As shown in Figure 3 The forming drum is composed of a first drum surface 4.2 and a second drum surface 4.3, which are sequentially arranged along the length direction of the main shaft 8.1. The first drum surface 4.2 and the second drum surface 4.3 are both wrapped on the outer side of the main shaft 8.1. The first drum surface 4.2 is in a cylindrical structure, and the inner wall of the first drum surface 4.2 is fixedly connected with the outer surface of the main shaft 8.1 through the oppositely arranged support sealing pieces 4.10. The first drum surface 4.2 is coaxially arranged with the main shaft 8.1. The left end of the first drum surface 4.2 is made into a drum shoulder in a chamfered shape according to a process curve, which is convenient for fixing the left steel ring 4.1 through the capsule 3.3 after the ring buckle disc 3.2 buckles the ring, and at the same time, avoids the damage of the material. The outer diameter of the first drum surface 4.2 is larger than the outer diameter of the left steel ring 4.1.

[0049] The support sealing piece 4.10 is a support plate structure with sealing function. The connection between the support sealing piece 4.10 and the first drum surface 4.2 and the main shaft 8.1 is a sealed connection.

[0050] The end of the first drum surface 4.2 close to the capsule 3.3 is an open structure, and the capsule 3.3 can extend into the first drum surface 4.2 through the opening. A plurality of air holes 4.9 are arranged on the drum shoulder of the first drum surface 4.2 along the circumferential direction. The air holes 4.9 are located between two adjacent support sealing pieces 4.10 and are arranged along the axial direction. The air holes 4.9 are mainly used to assist the disassembly of the air spring tire blank.

[0051] Specifically, the space between the two adjacent support sealing pieces 4.10 in the first drum surface 4.2 is connected with the air supply system. The high-pressure air supply system can blow high-pressure gas into the first drum surface 4.2 and discharge it outward from the air holes 4.9 to assist the disassembly of the air spring tire blank.

[0052] It can be understood that the high-pressure air supply system is a prior structure. The high-pressure air supply system is installed on the rack 1. The specific installation position can be selected according to the actual design requirements, which is not limited here.

[0053] The outer diameter of the second drum surface 4.3 is the same as that of the first drum surface 4.2. One end of the second drum surface 4.3 is fixedly connected with the first drum surface 4.2. The second drum surface is composed of a drum surface main body 4.8 and a plurality of drum tiles 4.5. The drum surface main body 4.8 is in a cylindrical structure. A plurality of installation grooves for installing the drum tiles 4.5 are arranged on the drum surface main body 4.8 along the circumferential direction. One drum tile 4.5 is installed in each installation groove.

[0054] A pull pin 4.6 is sleeved on the main shaft 8.1 at a position adjacent to the second drum surface 4.3, and the main shaft 8.1 is hollow, and the piston rod of the air cylinder can extend into the main shaft 8.1 from the right end and is fixedly connected with the pull pin 4.6 through a guide shaft, the guide shaft passes through the guide groove, so that the pull pin 4.6 can be driven to move along the length direction of the main shaft 8.1 under the action of the air cylinder.

[0055] The drum shoe 4.5 is hinged to the mounting groove on the drum surface body 4.8 at one end adjacent to the first drum surface 4.2, and the drum shoe 4.5 is connected with the pull pin 4.6 through the first connecting rod 4.7, the first connecting rod 4.7 is hinged with the pull pin 4.6 and the drum shoe 4.5 respectively, so that when the pull pin 4.6 moves, the drum shoe 4.5 can be driven to extend outward (away from the axial direction) or be retracted into the mounting groove, wherein the guide groove can limit the movement distance of the pull pin 4.6 to avoid damaging the air spring.

[0056] It should be noted that the length of the first drum surface 4.2 should be greater than the length of the second drum surface 4.3, and the length of the first drum surface 4.2 is less than the length of the air spring, so that the second drum surface 4.3 can be used to support the end of the air spring.

[0057] The upper surface of the drum shoe 4.5 for placing the right steel ring 4.4 is provided with a limiting groove similar to L-shaped for limiting the position of the right steel ring 4.4, the slope of one side of the limiting groove close to the first drum surface 4.2 is smaller than the slope of the other side, and the side of the limiting groove close to the first drum surface 4.2 is also made into a drum shoulder with a chamfered shape according to the process curve.

[0058] The down roller 5 is composed of a support table 5.1, a pressing roller 5.2, a fourth air cylinder 5.3 and a fifth air cylinder 5.4, wherein the fourth air cylinder 5.3 is fixedly arranged on the second support frame 6.11 of the steel ring transmission ring 6 in the transverse direction, the piston rod of the fourth air cylinder 5.3 is fixedly connected with the support table 5.1, and is used to drive the transverse movement of the support table 5.1.

[0059] The bottom of the support table 5.1 is fixedly provided with a sliding block matched with the sliding rail on the top of the rack 1, the fifth air cylinder 5.4 is vertically arranged in the interior of the rack 1, the fifth air cylinder 5.4 is fixedly arranged on the bottom of the support table 5.1 and the piston rod passes through the support table 5.1, the piston rod of the fifth air cylinder 5.4 is fixedly connected with the pressing roller 5.2 on the support table 5.1, and is used to change the height of the pressing roller 5.2; the pressing roller 5.2 is composed of a support seat, a roller shaft and a roller body, the bottom of the support seat is fixedly connected with the piston rod of the fifth air cylinder 5.4, the roller shaft is fixedly arranged on the support seat in the horizontal direction, and the roller body is rotatably arranged at one end of the roller shaft, and the roller body can rotate around the axial direction of the roller shaft to roll the end of the air spring after the reverse wrapping.

[0060] As Figures 4-5As shown, the steel ring transmission ring 6 is composed of a first ring body 6.1, a guide fixed seat 6.2, a steel ring fixed seat 6.3, a sixth cylinder 6.4, a seventh cylinder 6.5, a first adjusting nut 6.6, a driving disc 6.7, a second connecting rod 6.8, a first bearing 6.9, a second bearing 6.10 and a second support frame 6.11.

[0061] The first ring body 6.1 and the driving disc 6.7 are both annular structures, wherein the first ring body 6.1 is an annular cover structure, and the driving disc 6.7 is an annular disc structure, the outer diameter and the inner diameter of the driving disc 6.7 are the same as those of the first ring body 6.1, the first ring body 6.1 is coaxially arranged with the driving disc 6.7 and located on the side of the driving disc 6.7 close to the forming drum 4, the first ring body 6.1 is fixedly arranged on the second support frame 6.11, and the driving disc 6.7 is rotatably arranged in the first ring body 6.1 and limited by the first ring body 6.1 at the open side through the first bearing 6.9, the first bearing 6.9 is arranged along the ring direction of the first ring body 6.1, and the driving disc 6.7 can rotate around its axial direction to drive the steel ring fixed seat 6.3 to perform extension and contraction.

[0062] The main shaft 8.1 and the forming drum 4 pass through the middle of the steel ring transmission ring 6, and the main shaft 8.1 and the forming drum 4 are coaxially arranged with the steel ring transmission ring 6.

[0063] The side surface of the first ring body 6.1 close to the forming drum 4 is fixedly provided with a plurality of guide fixed seats 6.2 along the ring direction, and the steel ring fixed seat 6.3 is movably arranged in the guide fixed seat 6.2 to clamp the right steel ring 4.4 of different sizes.

[0064] The end of the steel ring fixed seat 6.3 in contact with the steel ring is in an arc structure, and an L-shaped groove is formed on the side of the arc structure in contact with the steel ring, so as to better clamp and limit the outer ring of the right steel ring 4.4.

[0065] The sixth cylinder 6.4 is fixedly arranged on the second support frame 6.11, the sixth cylinder 6.4 is vertically arranged, and the piston rod of the sixth cylinder 6.4 is connected with the driving disc 6.7 through the second connecting rod 6.8, so that the sixth cylinder 6.4 can drive the driving disc 6.7 to rotate through the lifting of the piston rod.

[0066] The driving disc 6.7 is provided with a plurality of obliquely arranged long strip-shaped through holes along the ring direction, the long strip-shaped through holes correspond to the steel ring fixed seats 6.3 one by one, the steel ring fixed seat 6.3 is connected with the driving disc 6.7 through the second bearing 6.10, one end of the second bearing 6.10 is fixedly connected with the steel ring fixed seat 6.3, and the other end is inserted into the long strip-shaped through hole, so that when the driving disc 6.7 rotates, the second bearing 6.10 can move in the long strip-shaped through hole, thereby driving the steel ring fixed seat 6.3 to perform extension and contraction.

[0067] The bottom of the second support frame 6.11 is also fixedly provided with a sliding block matched with the sliding rail on the top of the machine frame 1, and the seventh cylinder 6.5 is transversely fixedly arranged on the machine frame 1 and located at the right side of the second support frame 6.11 to drive the steel ring transmission ring 6 to move towards or away from the forming drum 4.

[0068] The end of the piston rod of the seventh cylinder 6.5 is provided with a first adjusting nut 6.6, which is mainly used for adjusting the stroke of the piston rod of the seventh cylinder 6.5 to adapt to air springs of different sizes.

[0069] As shown in Figure 6 The push ring 7 is composed of a third support frame 7.1, a wrapping finger 7.2, an eighth cylinder 7.3, a second ring body 7.4, a ninth cylinder 7.5 and a second adjusting nut 7.6. The bottom of the third support frame 7.1 is fixedly provided with a sliding block matched with the sliding rail on the top of the machine frame 1, and the third support frame 7.1 is driven to move by the ninth cylinder 7.5. The ninth cylinder 7.5 is transversely fixedly arranged on the machine frame 1, one end of the piston rod of the ninth cylinder 7.5 is fixedly connected with the third support frame 7.1, and the other end is provided with the second adjusting nut 7.6 to adjust the stroke.

[0070] The second ring body 7.4 is in a ring structure, and is fixedly arranged on the third support frame 7.1. A plurality of wrapping fingers 7.2 are arranged on the side of the second ring body 7.4 close to the steel ring transmission ring 6 and spaced apart along the ring direction of the second ring body 7.4. The wrapping fingers 7.2 are close to the inner ring of the second ring body 7.4, and are mainly used for wrapping the end of the air spring.

[0071] The wrapping finger 7.2 is in a bent plate structure and has an angle bent towards the center of the circle. The wrapping finger 7.2 is fixedly arranged on the second ring body 7.4 by a first fixing seat, and is hinged between the wrapping finger 7.2 and the first fixing seat.

[0072] The number of the eighth cylinders 7.3 is the same as that of the wrapping fingers 7.2, and the eighth cylinders 7.3 correspond to the wrapping fingers 7.2 one by one. The eighth cylinders 7.3 are arranged directly above the wrapping fingers 7.2, and are mainly used for driving the wrapping fingers 7.2 to open and close.

[0073] The eighth cylinder 7.3 is fixedly arranged on the second ring body 7.4 by a second fixing seat, and is hinged between the eighth cylinder 7.3 and the second fixing seat. The telescopic rod of the eighth cylinder 7.3 is hinged with the wrapping finger 7.2, so that the telescopic movement of the eighth cylinder 7.3 drives the wrapping finger 7.2 to move towards or away from the center of the circle.

[0074] It can be understood that a pneumatic system and an electric control system are also provided. The pneumatic system is mainly used for driving the cylinders and the capsules 3.3, and the electric control system is a structure of an existing control cabinet, an operation box and the like, which adopts PLC and a frequency converter control.

[0075] The feeding rack is arranged at the rear side of the forming drum 4, and has a multi-layer structure, and can classify and store the inner liner, the first layer of cord fabric, the second layer of cord fabric and the wrapping fabric of the air spring, so as to facilitate use.

[0076] The specific working principle is as follows:

[0077] Firstly, the third cylinder 3.9 pushes the whole building and covering mechanism 3 to move towards the main shaft 8.1, so that the capsule 3.3 is partially arranged in the forming drum 4;

[0078] Then, the material on the feeding rack is taken down manually and wound on the forming drum 4 according to the design requirements of the air spring, and after winding, the adhesive tape is pasted on the sidewall of the air spring tire blank along the circumferential direction, and at the same time, the left steel ring 4.1 is placed on the protrusion 3.10 of the bead plate 3.2, and the right steel ring 4.4 is fixedly arranged between the steel ring fixing seats 6.3;

[0079] It should be noted that in the process of winding the material, the main shaft 8.1 drives the forming drum 4 to rotate to assist the winding of the material.

[0080] When the adhesive tape is pasted, the first cylinder 3.7 and the second cylinder 3.8 at the left end of the air spring work in sequence, first, the finger-shaped piece 3.4 is extended and opened, then the first cylinder 3.7 works again to close and retract the finger-shaped piece 3.4 to tightly adhere the material at the left end of the air spring to the capsule 3.3, and then the second cylinder 3.8 works to move the bead plate 3.2 to place the left steel ring 4.1 on the adhesive tape at the left end of the air spring, and the bead plate 3.2 returns to the original position after the left steel ring 4.1 is placed.

[0081] The finger-shaped piece 3.4 needs to contain part of the adhesive tape to ensure the effective installation of the left steel ring 4.1.

[0082] The right end operation of the air spring is performed at the same time as the left end operation, the seventh cylinder 6.5 at the right end of the air spring works to move the steel ring transmission ring 6 towards the forming drum 4, and when the right steel ring 4.4 moves to the adhesive tape at the right end of the air spring tire blank, the drum shoe 4.5 is opened outward under the driving of the pull pin 4.6 to expand the right end of the air spring tire blank and paste the right steel ring 4.4 on the adhesive tape at the right end of the air spring tire blank.

[0083] When the left and right rings are installed in place, the capsule 3.3 is inflated, and the third cylinder 3.9 drives the push disc 3.5 to move towards the capsule 3.3, the push disc pushes the material on the capsule 3.3 and reversely packs the material to the left end of the rubber strip; at the same time, the ninth cylinder 7.5 at the right end of the air spring works, drives the push ring 7 to move towards the steel ring transmission ring 6, so that the reverse packing finger 7.2 passes through the middle of the first ring body 6.1 and the driving disc 6.7, and then reversely packs the material at the right end of the air spring to the rubber strip at the right end and controls the reverse packing finger 7.2 to tighten the material on the rubber strip at the right end by the eighth cylinder 7.3;

[0084] When the air spring is reversely packed at both ends, the fourth cylinder 5.3 works, so that the pressing roller 5 moves directly below the right ring 4.4, and after moving to the position, the fifth cylinder 5.4 works to make the pressing roller 5 rise and contact the lower surface of the right end of the air spring, the main shaft 8.1 rotates, and the pressing roller 5 further rolls and adheres the right ring 4.4 and the material;

[0085] When the rolling is completed, the reverse packing mechanism 3, the drum shoe 4.5, the pressing roller 5, the ring transmission ring 6 and the push ring 7 are reset, the high-pressure air supply system supplies air into the first drum surface 4.2 and sprays out through the air hole 4.9, and the high-pressure gas separates the inner wall of the air spring and the outer wall of the forming drum 4, so as to facilitate the manual removal of the air spring from the forming drum 4.

[0086] The air spring forming machine in the embodiment can simultaneously install different size rings at both ends of the air spring and reversely pack the material, which greatly reduces the labor intensity and improves the work efficiency.

[0087] The above only describes the preferred embodiments of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. An air spring forming machine, characterized in that, The device includes a frame and a tailstock and a main unit, which are respectively disposed on the top of the frame. The tailstock is slidably connected to the frame. The side of the tailstock near the main unit is provided with a front and back wrapping mechanism for installing steel rings and shrinking and wrapping the end of the air spring tire blank. The tailstock is connected to the front and back wrapping mechanism through several cylinders. The main unit is provided with a main shaft driven by a motor. The main shaft extends horizontally toward the front and back wrapping mechanism and a forming drum is fixed on the main shaft. The end of the forming drum away from the front and back wrapping mechanism is provided with a drum tile for spreading the end of the air spring. A steel ring transfer ring and a push ring for wrapping the end of the air spring tire blank are arranged in sequence between the forming drum and the main unit. The main shaft passes through the push ring and the steel ring transfer ring in sequence. Both the push ring and the steel ring transfer ring are slidably disposed on the frame. The positive and negative packaging mechanism is provided with a first support frame and a pusher. The first support frame is fixedly provided with an annular pusher plate on the side near the forming drum. An annular buckle plate is coaxially provided in the pusher plate. An installation shaft is coaxially provided in the buckle plate. Several finger-shaped pieces are evenly provided on the installation shaft along its circumference. A capsule is fixedly provided at the end of the installation shaft near the forming drum. The buckle disc has a protrusion for mounting a steel ring along its circumferential direction at the end near the forming drum. The width of the protrusion is smaller than the width of the steel ring. The finger-shaped piece is in a raised state in its free state. The forming drum consists of a first drum surface and a second drum surface covering the outside of the main shaft. The second drum surface consists of a cylindrical drum surface body and several drum tiles. Several mounting grooves for mounting drum tiles are provided on the drum surface body at intervals along its circumference. One end of each drum tile is hinged to the mounting groove. A pull pin driven by a cylinder is sleeved on the main shaft. The pull pin drives the drum tiles to extend outward or retract into the mounting groove through a connecting rod. The steel ring transfer ring consists of a first ring body fixedly mounted on a second support frame, a drive disc rotatably mounted inside the first ring body, a guide fixing seat fixedly mounted on the first ring body at intervals along the circumferential direction, and a steel ring fixing seat movably mounted inside the guide fixing seat. The end of the steel ring fixing seat that contacts the steel ring has an arc-shaped structure, and an L-shaped groove is provided on the side of the arc-shaped structure that contacts the steel ring. The push ring is driven by a cylinder to move along the length of the frame. The push ring consists of a second ring body fixedly mounted on the third support frame and reverse wrapping fingers spaced along the circumferential direction on the second ring body. The reverse wrapping fingers are close to the steel ring transmission ring and are hinged to the second ring body. Several cylinders for driving the reverse wrapping fingers to open and close are also fixedly mounted on the second ring body.

2. The air spring forming machine according to claim 1, characterized in that, A lower pressure roller is provided below the forming drum. The lower pressure roller is slidably mounted on the frame and is equipped with a cylinder for driving its horizontal movement and vertical lifting.

3. An air spring forming machine according to claim 1, characterized in that, The push seat, push plate, buckle plate, and mounting shaft are all connected to the telescopic rod of the corresponding cylinder on the tailstock, and the capsule is connected to the air supply unit inside the tailstock.

4. An air spring forming machine according to claim 1, characterized in that, The first drumhead and the second drumhead are arranged sequentially along the length of the main shaft. The end of the first drumhead near the front and back packaging mechanism is an opening structure that allows the capsule to be inserted, and the end has a chamfered drum shoulder. The inner wall of the first drumhead is fixedly connected to the main shaft through oppositely arranged support seals. Several vent holes for exhausting gas are provided on the first drumhead along its circumferential direction. The vent holes are located between two adjacent support seals.

5. An air spring forming machine according to claim 1, characterized in that, The steel ring transfer ring is driven by a cylinder to move along the length of the frame. The drive plate is driven by a cylinder to rotate. The guide fixing seat is adjacent to the forming drum. The steel ring fixing seat is connected to the obliquely arranged elongated through hole on the drive plate through a second bearing. The elongated through hole is arranged at intervals along the circumferential direction.

6. An air spring forming machine according to claim 1, characterized in that, The first ring body restricts the position of the drive disk by a first bearing, and the first bearing is spaced apart along the circumferential direction of the first ring body.

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