Air spring forming machine

Abstract

The utility model relates to the technical field of air spring manufacturing, in particular to an air spring forming machine. The automatic feeding device comprises a feeding mechanism, wherein the feeding mechanism comprises a tool trolley used for feeding; the cutting device comprises a belt type conveying mechanism used for receiving materials supplied by the tool trolley and a cutter assembly used for cutting the materials on the belt type conveying mechanism. And the feeding template comprises a template frame, two feeding conveying belts which are distributed up and down are arranged on the template frame, the two feeding conveying belts slide along the corresponding rails respectively, an intersection point is formed between sliding tracks of the conveying tail ends of the two feeding conveying belts, and the intersection point is located on the outer edge of the forming drum. The air spring forming machine has good air spring forming efficiency, the layout of the air spring forming machine is adjusted, and the horizontal space occupied by the air spring forming machine is reduced as much as possible.

Description

Technical Field

[0001] This utility model relates to the field of air spring manufacturing technology, specifically an air spring forming machine. Background Technology

[0002] An air spring is a spring that uses compressed air to fill a sealed container, utilizing the compressibility of gas to achieve its elastic effect. It is commonly known as an airbag, airbag cylinder, or bellows cylinder.

[0003] Air spring forming machines are the main devices used to manufacture air springs. They are divided into fully automatic and semi-automatic types. Semi-automatic forming machines involve manually placing fabric sheets and films on a feeding template, then rolling forming rollers along the length of the template to wind the fabric sheets and films onto the forming rollers. Fully automatic forming machines, on the other hand, automatically guide and cut the material before transporting it to the forming drum for winding. Simultaneously, during the winding process, a pressure device compresses the fabric sheets and films to ensure a tight fit with the forming drum. Regarding existing automated air spring forming machines, traditional air spring forming machines mostly use two separate feeding lines for fabric and film, alternately feeding them to the same feeding template. Obviously, this results in low feeding efficiency, leading to low air spring processing efficiency. To further improve the processing efficiency of air springs, existing technologies, such as the automatic feeding device and method for integral molding of air springs described in Chinese Patent Publication No. CN116728651A, employ four parallel conveyor lines for cutting and feeding materials to a feeding platform perpendicular to the conveyor lines to increase the feeding rate and thus improve the processing efficiency of air springs, and the technical solutions described in the air spring molding machine described in Chinese Patent Publication No. CN219076601U, arrange a long strip-shaped feeding template with four parallel feeding routes arranged on one side of the feeding template. The four feeding routes simultaneously feed materials to the feeding template, arranging the four materials on the feeding template according to the required arrangement, thereby improving the feeding efficiency. Obviously, although the air spring forming machine described in the cited patent has a relatively good air spring processing efficiency, each feeding route occupies a large amount of horizontal space and requires a large area of ​​site to support the installation of the equipment. How to achieve good processing efficiency of air springs while minimizing the horizontal space occupied by the air spring forming machine is an urgent problem to be solved in the existing technology. Utility Model Content

[0004] In order to avoid and overcome the technical problems existing in the prior art, this utility model provides an air spring forming machine with good air spring forming efficiency, and the layout of the air spring forming machine is adjusted to minimize the horizontal space occupied by the air spring forming machine.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An air spring forming machine, comprising

[0007] A feeding mechanism, the feeding mechanism including a tooling carriage for feeding materials;

[0008] A cutting device, the cutting device comprising a belt conveyor for receiving material from a tooling vehicle and a cutting blade assembly for cutting material on the belt conveyor;

[0009] A feeding template, comprising a template frame, on which two feeding conveyor belts are arranged vertically. Each of the two feeding conveyor belts slides along a corresponding track, and the sliding trajectories of the two feeding conveyor belts intersect at a point located on the outer edge of the forming drum.

[0010] The forming machine main unit includes a forming drum for winding material on a template frame.

[0011] The pressing mechanism is used to compress the material and make it fit tightly against the outer surface of the forming drum.

[0012] As a further embodiment of this utility model: the feeding mechanism further includes a fixed frame, on which a movable frame is slidably mounted. The tooling carriage is mounted on top of the movable frame, and the top of the tooling carriage is equipped with a feeding roller assembly. The movable frame slides on a sliding fulcrum on the fixed frame via a pad strip fixed to its bottom. The pad strip is distributed in two stepped sections, with both the high and low step surfaces of the pad strip arranged horizontally and smoothly connected. When the high step surface of the pad strip is in sliding engagement with the sliding fulcrum, the wheels of the tooling carriage are suspended in the air; when the low step surface of the pad strip is in engagement with the sliding fulcrum, the wheels of the tooling carriage are on the ground. The fixed frame is configured in four sets.

[0013] As a further embodiment of this utility model: the pad strips are four in a rectangular array distributed at the bottom of the movable frame, the length direction of the pad strips is the same as the sliding direction of the movable frame, and the top of the fixed frame is equipped with rollers corresponding to each pad strip, so as to form the sliding fulcrum through the rollers.

[0014] As a further embodiment of this utility model, the feeding mechanism also includes a power cylinder for providing the sliding power of the pad strip along the sliding fulcrum. The power cylinder is hinged to the fixed frame through a first horizontal hinge seat. The power end of the power cylinder is detachably connected to a connector. The connector is hinged to the movable frame through a second horizontal hinge seat. The rotation axes of the first and second horizontal hinge seats are both perpendicular to the sliding direction of the movable frame, so that the power cylinder can generate up-and-down swinging motion during the driving process.

[0015] As a further embodiment of this utility model: the cutting blade assembly is distributed above the belt conveyor mechanism, the cutting angle of the cutting blade assembly is adjustable along the rotation axis, the rotation axis is distributed along the vertical direction, and the rotation axis is located on the central axis of the curtain.

[0016] As a further embodiment of this utility model: the cutting device also includes a traction mechanism for pulling the cut fabric block and moving the fabric block to the rear end of the conveyor belt mechanism. The traction mechanism includes a horizontally distributed rotating rod, and at least two traction suction cups are distributed at the bottom of the rotating rod along the length of the rotating rod. The angle of the rotating rod is adjustable along the rotation axis, and the rotation axis is distributed along the vertical direction and is located on the central axis of the fabric.

[0017] As a further embodiment of this utility model: the feeding conveyor belt slides on the top of the slide rail via a sliding support, the inclination angle of the feeding conveyor belt on the sliding support is adjustable, and the axis of the inclination angle adjustment is a horizontal line and perpendicular to the sliding direction of the feeding conveyor belt.

[0018] As a further improvement of this utility model: a vision inspection module is installed on the top of the template frame. The detection area of ​​the vision inspection module is located at the end of the conveyor belt after it extends towards the forming drum. The output end of the vision inspection module is connected to the PLC controller.

[0019] As a further embodiment of this utility model: the belt conveyor mechanism is configured as four belt conveyors arranged in a rectangular array along the vertical base plane, and the four belt conveyors are used in conjunction with four tooling cars respectively, and the conveying direction of the four feeding conveyor belts is perpendicular to the vertical base plane; the template frame is configured in two sets, and the four feeding conveyor belts on the two sets of template frames respectively receive the materials from the four belt conveyors.

[0020] As a further embodiment of this utility model: the main body of the molding machine further includes an X-axis track base and a machine base that slides on the X-axis track base. The X-axis track base is perpendicular to the conveying direction of the feeding conveyor belt. Each machine base includes an X-axis sliding base that is slidably connected to the X-axis track base, with the sliding direction of the X-axis sliding base as the X-axis direction. The X-axis sliding base has a Y-axis sliding base that is adjustable along the Y-axis direction, and the Y-axis sliding base has a Z-axis sliding base that is adjustable along the Z-axis direction. There are two machine bases, and the two machine bases are driven by a first synchronous belt assembly and a second synchronous belt assembly, respectively. The axial direction of the molding drum is parallel to the X-axis direction. The molding drum is installed between the two Z-axis sliding bases and is fixed to one of the Z-axis sliding bases and forms an insertion fit with the other Z-axis sliding base.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] 1. Two vertically distributed slide rails are fixed on the template frame. Each slide rail is equipped with a feeding conveyor belt that slides along the length of the slide rail. During the sliding process of the two feeding conveyor belts on the slide rails, there is an intersection point between the sliding trajectories of the conveying ends of the two feeding conveyor belts. This intersection point is located at the outer edge of the forming drum. Therefore, during the staggered operation of the two feeding conveyor belts, the conveying ends of the two feeding conveyor belts can move to the outer edge of the forming drum to achieve material adhesion to the forming drum. The staggered feeding method not only minimizes the horizontal space occupied by the air spring forming machine, but also effectively improves the feeding efficiency to the forming drum, thereby improving the processing efficiency of the air spring.

[0023] 2. Place the work carriage equipped with the feeding roller assembly on the movable frame. The movable frame is slidably connected to the fixed frame by sliding the bottom pad strip on the sliding fulcrum of the fixed frame. The pad strip has a two-stage stepped distribution with a high step surface and a low step surface. The high step surface and the low step surface are horizontally distributed and smoothly connected to each other. This allows the high step surface and the low step surface of the pad strip to smoothly transition to slide and engage with the sliding fulcrum respectively. When the wheels are suspended, the work carriage slides to perform the correction operation. When the wheels are on the ground, the work carriage can be quickly disassembled from the movable frame, and a new work carriage full of materials can be moved to the movable frame. This effectively improves the efficiency of material change and thus improves the production efficiency of the production line.

[0024] 3. The pads are arranged in a rectangular array of four at the bottom of the mobile frame, and each pad has a corresponding roller on the fixed frame. This effectively ensures the stability of the support during the movement of the mobile frame and reduces the frictional resistance during the sliding of the pads.

[0025] 4. A power cylinder is used to drive the pad strip to slide along the sliding fulcrum. The fixed seat and the power end of the power cylinder are respectively hinged to the fixed frame and the moving frame along the horizontal axis perpendicular to the sliding direction of the pad strip. This allows the power cylinder to generate up-and-down swinging motion during the driving process, so that the power cylinder can continuously ensure good driving of the moving frame when the pad strip slides on the roller during the high-position stage and the low-position stage.

[0026] 5. The cutting angle of the cutting blade assembly for cutting the curtain fabric above the belt conveyor is adjustable along the rotation axis. Since the rotation axis is distributed vertically and located on the central axis of the curtain fabric, this layout allows the cutting blade assembly to adjust the cutting angle with minimal swing amplitude when the cutting angle needs to be changed. Simultaneously, this layout ensures that the rotation axis remains at the midpoint of the curtain fabric's inclined surface during the cutting angle adjustment process. This facilitates the calculation of the position of the curtain fabric cutting edge and the curtain fabric joint, providing a technical platform for controlling the accurate interval between the cutter and the curtain fabric joint. This allows for seamless cutting of the curtain fabric after the cutter passes the joint, and helps reduce waste of curtain fabric material.

[0027] 6. The rotating rod of the traction mechanism is horizontally distributed and its angle is adjustable along the rotation axis, which is distributed vertically and also located on the central axis of the curtain fabric. At least two traction suction cups distributed along the length of the rotating rod are arranged at the bottom of the rotating rod to adsorb the cut curtain fabric pieces. This arrangement also allows for adjustment of the minimum swing amplitude of the rotation and facilitates aligning the angle adjustment of the rotating rod with the cutting angle adjustment of the cutting blade assembly. This ensures that the traction suction cups at the bottom of the rotating rod adhere to the cut edge of the curtain fabric piece, preventing wrinkles in the curtain fabric piece during the movement of the traction mechanism.

[0028] 7. The inclination angle of the feeding conveyor belt is adjustable, and the axis of the inclination adjustment is a horizontal line and perpendicular to the sliding direction of the feeding conveyor belt, so that the feeding conveyor belt has multiple installation angles, so as to facilitate the feeding conveyor belt to fit with different forming drums or to facilitate the feeding conveyor belt to connect with the cutting device that feeds it.

[0029] 8. A vision inspection module is installed on the template frame. Its inspection area is located at the end of the conveyor belt after the material feeding conveyor belt extends to the forming drum. When the two material feeding conveyor belts move to the position close to the forming drum, the vision inspection module can detect the material deviation on the material feeding conveyor belt. This allows for real-time monitoring of the material deviation on the conveyor belt, providing technical support for the alignment of the forming drum and the material in the later stage.

[0030] 9. The four belt conveyors arranged in a rectangular array are arranged in two rows, which effectively reduces the horizontal space occupied by the molding machine; the template frame is set in two groups, and the four feeding conveyor belts receive the materials from the four belt conveyors respectively. The four feeding conveyor belts on the two groups of template frames can feed materials in the order of curtain fabric, film, film and curtain fabric, which further improves the efficiency of material feeding.

[0031] 10. The two machine bases are driven by the first and second synchronous belt assemblies respectively, allowing them to move away from each other and disassemble the air spring semi-finished product on the forming drum between the two machine bases, thus forming a forming drum machine base separation mechanism. Alternatively, the two machine bases can move synchronously along the X-axis, allowing the forming drum to correct its position according to the actual material position, thus forming a correction adjustment mechanism. The forming drum is mounted on the Y-axis sliding base of the machine base, enabling adjustment in the Z-axis direction. The Z-axis sliding base is mounted on the Y-axis sliding base, further enabling adjustment in the Y-axis direction. Adjustment of the forming drum in both the Y and Z axes facilitates alignment between different types of forming drums and the feeding template, thus forming a precision adjustment mechanism. By integrating the correction adjustment mechanism for material offset adjustment, the precision adjustment mechanism for adjusting the positional relationship between the feeding template and the forming drum, and the forming drum machine base separation mechanism, the installation and maintenance of each mechanism are made more convenient. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the main structure of this utility model.

[0033] Figure 2 This is a top view of the structure of this utility model.

[0034] Figure 3 This is a schematic diagram of the left-side structure of this utility model.

[0035] Figure 4 This is a top view of the molding machine main unit and the feeding template in this utility model.

[0036] Figure 5 This is a schematic diagram of the main structure of the molding machine host in this utility model.

[0037] Figure 6 This is a top view of the main body of the molding machine in this utility model.

[0038] Figure 7 This is a schematic diagram of the left side of the main body of the molding machine in this utility model.

[0039] Figure 8 This is a top view of the material feeding template in this utility model.

[0040] Figure 9 This is a schematic diagram of the first state of the material feeding template in this utility model.

[0041] Figure 10 This is a schematic diagram of the main structure of the material feeding template in the second state of this utility model.

[0042] Figure 11 This is a right-side structural schematic diagram of the feeding mechanism in this utility model.

[0043] Figure 12 This is a left-side structural diagram of the material supply vehicle in its grounded state in this utility model.

[0044] Figure 13 This is a left-side structural schematic diagram of the material supply vehicle in the suspended state of this utility model.

[0045] Figure 14 This is a front view structural diagram of the feeding mechanism in this utility model.

[0046] Figure 15 This is a top view of the feeding mechanism in this utility model.

[0047] Figure 16 This is a top view of the cutting device in this utility model.

[0048] Figure 17 This is a top view of the rejection mechanism in this utility model.

[0049] Figure 18 This is a top view of the traction mechanism in this utility model.

[0050] In the diagram: 10. Molding machine main unit; 110. X-axis track base; 121. Machine base; 121X1. X-axis sliding base; 121Y1. Y-axis sliding base; 121Y2. Y-axis sliding track; 121Y3. Y-axis drive mechanism; 121Z1. Z-axis sliding base; 121Z2. Z-axis sliding track; 121Z3. Z-axis drive mechanism; 122. Winding power source; 123. Molding drum; 131. First synchronous belt assembly; 132. Second synchronous belt assembly;

[0051] 20. Material feeding template; 210. Template frame; 211. Connecting frame; 220. Slide rail; 230. Material feeding conveyor belt; 240. Slide tray; 250. Vision inspection module;

[0052] 30. Feeding mechanism; 310. Fixed frame; 311. Power cylinder; 312. Roller; 3121. First horizontal hinge seat; 320. Moving frame; 321. Connector; 3211. Second horizontal hinge seat; 322. Pad strip; 323. Hinge limiting component; 330. Tooling carriage; 331. Wheel; 332. Feeding roller assembly;

[0053] 40. Cutting device; 410. Cutting blade assembly; 420. Joint detection module; 430. Belt conveyor mechanism; 431. Mounting crossbar; 440. Traction mechanism; 441. Rotating rod; 442. Track slider; 450. Rejection mechanism; 451. Rejection electric cylinder; 452. Swing arm; 453. Rejection suction cup; 460. Track rod;

[0054] 50. Pressure suppression mechanism. Detailed Implementation

[0055] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0056] For ease of understanding, the specific structure and working method of this utility model are further described below with reference to the accompanying drawings:

[0057] The specific structure of this utility model is as follows: Figure 1-18 As shown, its main structure includes a feeding mechanism 30, a cutting device 40, a feeding template 30, a forming machine main unit 10, and a pressing mechanism 50. The feeding mechanism 30 feeds material to the cutting device 40 and corrects material deviation during the feeding process; the cutting device 40 cuts the material provided by the feeding mechanism 30 into the required shape and size; the feeding template 30 guides the material cut by the cutting device 40 to the forming machine main unit 10; the forming machine main unit 10 receives the material from the feeding template 30 and rolls it into shape; the pressing mechanism 50 squeezes the material tightly against the forming drum 123 of the forming machine main unit 10 to ensure the effective forming of the material.

[0058] The following is a detailed description of each component.

[0059] 1. Material supply mechanism 30

[0060] like Figure 1 and Figure 11-15 As shown, its main structure includes a fixed frame 310, a movable frame 320, and a tooling carriage 330 equipped with a feeding roller assembly 332.

[0061] Among them, such as Figure 11As shown, the movable frame 320 slides on the sliding fulcrum of the fixed frame 310 via a pad 322 fixed to its bottom. The pad 322 is distributed in two stepped sections, and both the high and low step surfaces of the pad 322 are arranged horizontally and are smoothly connected to each other, so that the sliding fulcrum can slide between the high and low step surfaces during the sliding process of the pad 322. When the high step surface of the pad strip 322 is in sliding engagement with the sliding fulcrum, the wheels 331 of the tooling carriage 330 are in a suspended state. The sliding of the moving frame 320 in this state can drive the tooling carriage 330 and the feeding roller assembly 332 to slide synchronously. In practice, by setting the axial direction of the feeding roller assembly 332 to be the same as the sliding direction of the moving frame 320, the correction operation of the feeding roller assembly 332 can be realized in this state. When the low step surface of the pad strip 322 is in engagement with the sliding fulcrum, the wheels 331 of the tooling carriage 330 are in a grounded state. At this time, the tooling carriage 330 after the wheels 331 are on the ground can be separated from the moving frame 320, which can realize the quick disassembly of the tooling carriage 330. After pushing the new tooling carriage 330 loaded with new material on the feeding roller assembly 332 onto the moving frame 320, the moving frame 320 is slidably reset to the high step surface of the pad strip 322 and the sliding fulcrum, thereby realizing the quick replacement of materials.

[0062] Furthermore, the pads 322 are arranged in a rectangular array of four on the bottom of the movable frame 320, and the top of the fixed frame 310 has a sliding fulcrum corresponding to each pad 322 to provide stable support for the movable frame 320. The sliding fulcrum is preferably a roller 312, with the axis of the roller 312 set perpendicular to the sliding direction of the pad 322. The rolling friction between the roller 312 and the pad 322 effectively reduces the frictional resistance during the sliding process of the pad 322. Of course, the above solution is only a preferred embodiment. In actual implementation, the pad 322 can also be located in the middle of the bottom of the movable frame 320 and have a larger width, while the sliding fulcrum can be two rollers 312, two support blocks, or a support block with a rectangular top.

[0063] Based on the above, such as Figure 14 As shown, the tooling cart 330 is placed on top of the movable frame 320 in the form of a bracket. To prevent insufficient friction between the tooling cart 330 and the movable frame 320 from causing them to move synchronously, a hinged limiting member 323 is also hinged to the movable frame 320. After the tooling cart 330 is placed on the movable frame 320, the tooling cart 330 is limited by rotating the hinged limiting member 323. The limiting and opening processes of this limiting method only require rotating the hinged limiting member 323, which ensures the stability of the connection between the tooling cart 330 and the movable frame 320, and also ensures the convenience of assembling and disassembling the tooling cart 330 and the movable frame 320.

[0064] In addition, such as Figure 11 As shown, the feeding mechanism 30 also includes a power cylinder 311 that provides the sliding power of the pad strip 322 along the sliding fulcrum. When the power cylinder 311 drives the high step surface of the pad strip 322 to slide into contact with the wheel 331, the power cylinder 311 performs the function of driving the feeding roller assembly 332 to feed and correct the deviation, thus forming a deviation correction power mechanism. When the power cylinder 311 drives the pad strip 322 from the high step surface to the low step surface to slide into contact with the wheel 331, the power cylinder 311 performs the power driving function of driving the tooling carriage 330 to disassemble. When the power cylinder 311 drives the pad strip 322 from the low step surface to the high step surface to slide into contact with the wheel 331, the power cylinder 311 performs the power driving function of driving the tooling carriage 330 to disassemble.

[0065] like Figure 11 As shown, to ensure that the power cylinder 311 remains stably connected to the moving frame 320 and the fixed frame 310 when the low-level step surface of the driving pad 322 transitions to the high-level step surface, the power cylinder 311 is hinged to the fixed frame 310 via the first horizontal hinge seat 3121 during installation. A connector 321 is detachably connected to the power end of the power cylinder 311, and the connector 321 is hinged to the moving frame 320 via the second horizontal hinge seat 3211. The rotation axes of the first horizontal hinge seat 3121 and the second horizontal hinge seat 3211 are both perpendicular to the sliding direction of the moving frame 320, so that the power cylinder 311 can swing up and down during the driving process. Of course, in specific implementation, the power cylinder 311 can also be horizontally fixed on the fixed frame 310, and the power end of the power cylinder 311 can be connected to the movable frame 320 through a vertical pin, so as to ensure that the power cylinder 311 drives the movable frame 320 without hindering the up and down movement of the movable frame 320. In actual implementation, the above-mentioned second horizontal hinge seat 3211 can be in the form of a ball hinge seat, and the connector 321 and the power end of the power cylinder 311 are fixed by threaded connection, which can facilitate the disassembly of the connector 321 and the power cylinder 311.

[0066] It is worth mentioning that, to further realize the intelligent feeding of the feeding mechanism 30, the feeding mechanism 30 also includes an offset detection module for detecting the edge position of the material, a roll diameter measurement module for measuring the diameter of the material roll, and a material absence detection module for detecting whether there is material on the tooling carriage 330. The offset detection module, roll diameter measurement module, and material absence detection module are all connected to the PLC controller. In use, the PLC controller determines the offset of the material edge based on the received signal from the offset detection module, thereby driving the correction power mechanism, namely the power cylinder 311 in this application, to perform the correction work, so as to drive the high step surface of the pad 322 to slide and cooperate with the roller 312 to realize automated correction feeding; specifically, the power cylinder 311 can be a servo electric cylinder to ensure the accuracy of the correction transmission. The PLC controller determines the actual unwinding length during the feeding process based on the received roll diameter measurement module, and then drives the tension controller to start running to adjust the tension during the roll conveying process. The PLC controller determines whether there is material on the tooling carriage 330 based on the received material detection module. If there is no material, it stops the drive motor that drives the feeding roller assembly 332 on the tooling carriage 330.

[0067] 2. Cutting device 40

[0068] like Figure 1-2 As shown, the cutting device 40 mainly includes a belt conveyor 430 for receiving materials conveyed by the feeding mechanism 30, a cutting assembly 410 for cutting materials on the belt conveyor 430, and a traction mechanism 440 for pulling the cut materials to the end of the belt conveyor 430.

[0069] like Figure 16 As shown, the cutting angle of the cutter assembly 410 is adjustable along the vertical axis, which is located on the central axis of the fabric roll. This arrangement minimizes the rotation amplitude of the cutter assembly 410 when adjusting its cutting angle. Simultaneously, the vertical axis of rotation of the cutter assembly 410 is always positioned at the midpoint of the cut edge of the material. When installing automatic cutting and removal equipment for fabric splices during fabric cutting, this arrangement allows for better calculation of the distance between the cutter assembly 410 and the cutting head, thus providing a good technical platform for subsequent splice removal equipment.

[0070] like Figure 16 and Figure 18As shown, the traction mechanism 440 includes a track slider 442, a rotating rod 441, and at least two traction suction cups distributed along the length of the rotating rod 441 at its bottom. A track rod 460, distributed along the central axis of the material, is fixed on the belt conveyor mechanism 430. The track slider 442 slides on the track rod 460, and the rotating rod 441 rotates on the track slider 442. The rotation axis of the rotating rod 441 is distributed vertically and located on the central axis of the material. This not only facilitates controlling the rotation of the rotating rod 441 to the same angle as the rotation of the cutter assembly 410, but also ensures that when the rotating rod 441 is at the edge of the cut material, adjusting its angle always keeps the rotation axis at the midpoint of the cut edge. This eliminates the need to adjust the extreme positions of the track slider 442's reciprocating motion on the track rod 460 after adjusting the angle of the rotating rod 441, further facilitating the automated program control of the traction mechanism 440. The multiple traction suction cups at the bottom of the rotating rod 441 enable the traction suction cups under the rotating rod 441 to adsorb the edges of the material as a whole, so as to prevent the material from wrinkling during the traction and movement process.

[0071] It is worth mentioning that the power source for the sliding of the track slider 442 and the angle adjustment of the rotating rod 441 and the cutter assembly 410 are both servo motors. The use of servo motor control can effectively ensure the accuracy of the sliding positioning of the track slider 442 and the accuracy of the positioning of the rotating rod 441 and the cutter assembly 410 after rotation.

[0072] The materials used in the production of air springs mainly include curtain blocks and film. Since the curtain blocks are made by overlapping strips of curtain tape and then rolling them into curtain rolls, and then conveying them to the cutting device 40 through the feeding mechanism 30, curtain materials often encounter curtain joints during the cutting process. For the cutting of curtains, the cutting device 40 is equipped with a joint-avoiding cutting system to remove joints.

[0073] like Figure 16As shown, the joint avoidance cutting system includes a joint detection module 420. The joint detection module 420 can use a visual image sensor to detect the joint position, or it can use the elevation difference at the joint of the curtain fabric, or use a distance sensor or use the elevation difference of the curtain fabric to drive the mechanical contact switch to achieve detection. The monitoring point of the joint detection module 420 is located on the central axis of the fabric material, and the monitoring point and the cutter assembly 410 are distributed sequentially along the conveying direction of the belt conveyor mechanism. The output end of the joint detection module 420 is electrically connected to the PLC controller, which transmits the detected fabric joint information to the PLC controller in real time. The PLC controller compares the known fixed distance between the joint detection module 420 and the cutter assembly 410 with the cutting width parameter set for this cut. If the fixed distance is greater than the width parameter, the belt conveyor mechanism 430 continues to convey the fabric by the width parameter and then cuts it again by the cutter assembly 410. The value of the fixed distance minus the width parameter is compared with the width parameter. If the value is still greater than the width parameter, the above operation continues. If the value or the fixed distance is less than the width parameter, the belt conveyor mechanism 430 continues to convey the fabric to the length corresponding to the value plus the joint width and then cuts it. This ensures that the cutter assembly 410 cuts the fabric joint as soon as it moves to the fabric joint, which can effectively reduce the fabric waste caused by the traditional equidistant cutting process.

[0074] Based on the above, such as Figure 17 and Figure 17 As shown, the joint-avoidance cutting system also includes a rejection mechanism 450 for rejecting fabric joints. A horizontal mounting bar 431, perpendicular to the conveying direction of the belt conveyor 430, is fixedly connected to the top of the belt conveyor 430. The rejection mechanism 450 includes a swing arm 452 hinged to one end of the mounting bar 431 via a vertical hinge. A rejection suction cup 453 is installed at the cantilever end of the swing arm 452 to absorb the fabric joints. Driven by a rejection electric cylinder 451, the rejection mechanism 450 also includes a rejection electric cylinder 451 that provides the swinging power to the swing arm 452. Both ends of the rejection electric cylinder 451 are hinged to the other ends of the swing arm 452 and the mounting bar 431 respectively via vertical hinges, forming a stable triangular drive structure with the rejection electric cylinder 451, the swing arm 452, and the mounting bar 431, which helps ensure the stability of the swing arm 452 during its swing.

[0075] 3. Material feeding template 30

[0076] like Figure 8-10As shown, the feeding template 30 includes a template frame 210, on which two vertically distributed slide rails 220 are fixedly connected. Each slide rail 220 is equipped with a feeding conveyor belt 230 that slides along the length of its corresponding slide rail 220. The conveying end of the feeding conveyor belt 230 is close to the forming drum 123, and the conveying beginning is close to the cutting device 40. During the sliding process of the two feeding conveyor belts 230 on their respective slide rails 220, the sliding trajectories of the conveying ends of the two feeding conveyor belts 230 intersect, and these intersections are all located at the outer edge of the forming drum 123. This ensures that both feeding conveyor belts 230 can stably convey materials to the forming drum 123. Therefore, different materials can be conveyed alternately by the two feeding conveyor belts 230 to improve the efficiency of feeding materials from the feeding template 30 to the forming machine host 10. In specific implementation, the upper feeding conveyor belt 230 in the template frame 210 is used for conveying the curtain fabric blocks, and the lower feeding conveyor belt 230 is used for conveying the film. Both feeding conveyor belts 230 are connected to a cutting device 40. The cutting device 40 of the feeding conveyor belt 230 for conveying the curtain fabric and the cutting device 40 of the feeding conveyor belt 230 for conveying the film are distributed vertically, and the cutting device 40 of the feeding conveyor belt 230 for conveying the curtain fabric is equipped with a joint-avoiding cutting system. In practical use, one of the feeding conveyor belts 230 slides to the beginning of the conveying process and docks with the corresponding cutting device 40 to transport the cut material to the beginning of the conveying process of the feeding conveyor belt 230. Then, the material is transported to the end of the conveying process through the feeding conveyor belt 230. During the conveying process, the end of the feeding conveyor belt 230 moves towards the forming drum 123 so that the material on the feeding conveyor belt 230 docks with the forming drum 123 and is wound around the forming drum 123. During the sliding process of the feeding conveyor belt 230 towards the forming drum 123, the other feeding conveyor belt 230 moves towards its corresponding cutting device 40 to receive the material, so as to ensure that the two feeding conveyor belts 230 are stably misaligned and realize alternating material receiving and feeding.

[0077] Based on the above, such as Figure 9 As shown, the feeding conveyor belt 230 slides on the slide rail 220 via the slide 240. The sliding of the slide 240 is driven by an electric telescopic rod, which is connected to a PLC controller. This ensures stable alternating operation between the two feeding conveyor belts 230 on the same template frame 210, and precise coordination between the sliding of the feeding conveyor belt 230 and the forming machine host 10 and the cutting device 40. The inclination angle of the feeding conveyor belt 230 on the slide 240 is adjustable, and the axis of this inclination adjustment is a horizontal line perpendicular to the sliding direction of the feeding conveyor belt 230. Adjusting the inclination angle of the feeding conveyor belt 230 ensures that it fits snugly against the outer edge of the forming drum 123 of different sizes.

[0078] Specifically, the slide 240 has a U-shaped structure with a concave top. The fixing plate on the outer side of the feeding conveyor belt 230 is fixed to the vertical side wall of the slide 240 by bolts. The outer side wall of the fixing plate has multiple sets of adjusting screw holes arranged in a fan shape for the bolts. The bolts are screwed into different adjusting screw sleeves to adjust the angle of the feeding conveyor belt 230. Of course, in specific implementations, the feeding conveyor belt 230 can also have other adjustment methods, such as the fixing plate on the outer side of the feeding conveyor belt 230 rotating with the vertical side wall of the slide 240, multiple adjusting holes circumferentially distributed around the rotation axis of the fixing plate on the outer side wall of the fixing plate, and limit pins that insert into the adjusting holes on the vertical side wall of the slide 240.

[0079] In addition, a vision inspection module 250 is installed on the top of the template frame 210. The detection area of ​​the vision inspection module 250 is located at the end of the conveyor belt 230 after it extends to the forming drum 123. The vision inspection module 250 is used to detect the edge position of the material on the material conveyor belt 230 and transmit the information to the PLC controller. The PLC controller controls the position of the forming drum 123 on the forming machine host 10 to ensure the accuracy of the material adhering to the forming drum 123.

[0080] It is worth mentioning that, such as Figure 1-4 As shown, the feeding template 30 in this application includes two parallel template frames 210, which are fixed together by a connecting frame 211. This allows the two fabric blocks and two film sheets required for an air spring to be supplied independently via a feeding conveyor belt 230. In the main machine 10 of the molding machine, the forming drum 123 moves back and forth between the template frames 210 of the two feeding templates 30, which can further reduce the time that the forming drum 123 waits for material to be conveyed at the same template frame 210, thereby further improving the efficiency of air spring processing.

[0081] 4. Molding machine main unit 10

[0082] To accommodate the material feeding method described in this application, which involves two parallel template frames 210 and two vertically distributed feeding conveyor belts 230 on each template frame 210, such as... Figure 4 As shown in this application, the forming drum 123 of the forming machine host 10 is equipped with an adjustment structure in three directions: X-axis, Y-axis and Z-axis. The X-axis direction is parallel to the width direction of the feeding conveyor belt 230. When the forming drum 123 moves along the X-axis, it can receive the material between the two template frames 210. When the forming drum 123 is adjusted along the Y-axis or Z-axis, the distance between the forming drum 123 of different sizes and the end of the feeding conveyor belt 230 can be adjusted to ensure that the forming drum 123 of different sizes can form a precise docking with the feeding conveyor belt 230.

[0083] Specifically, such as Figure 5-7 As shown, for adjusting the X-axis direction of the forming drum 123, the main body 10 of the forming machine includes two bases 121 for mounting the forming drum 123. One base 121 is equipped with a winding power source 122 for driving the forming drum 123 to rotate. The forming drum 123 is fixed on the Z-axis sliding base 121Z1 of one base 121 and is inserted into the Z-axis sliding base 121Z1 of the other base 121. Both bases 121 slide on the X-axis track base 110. The two bases 121 are driven by the first synchronous belt assembly 131 and the second synchronous belt assembly 132, respectively. Taking the sliding direction of the base 121 on the X-axis track base 110 as the X-axis direction, the axial direction of the forming drum 123 is parallel to the X-axis direction, and the axial direction of the forming drum 123 is parallel to the width direction of the feeding conveyor belt 230. Thus, during operation, the first synchronous belt assembly 131 and the second synchronous belt assembly 132 operate synchronously, driving the two machine bases 121 and the forming drum 123 to move synchronously as a whole, so as to realize the sliding adjustment of the forming drum 123 along the X-axis direction to receive materials back and forth between the two template frames 210; when the air spring semi-finished product on the forming drum 123 is finished, one of the machine bases 121 is driven by the first synchronous belt assembly 131 or the second synchronous belt assembly 132 alone, so that the two machine bases 121 are far apart, or the first synchronous belt assembly 131 and the second synchronous belt assembly 132 simultaneously drive the two machine bases 121 to move in opposite directions, so that the two machine bases 121 are far apart, thereby separating the insertion end of the forming drum 123 from the machine base 121. In this state, the air spring semi-finished product can be disassembled.

[0084] Specifically, such as Figure 5-7 As shown, for adjusting the Y-axis direction of the forming drum 123, the base 121 slides on the X-axis track base 110 via an X-axis sliding base 121X1. A Y-axis sliding track 121Y2 is fixed on the X-axis sliding base 121X1. The Y-axis sliding base 121Y1 slides on the Y-axis sliding track 121Y2 and is driven by the Y-axis drive mechanism 121Y3 to achieve adjustment of the Y-axis sliding track 121Y2 in the Y-axis direction. The Z-axis sliding base 121Z1, which fixes the forming drum 123, is connected to the Y-axis sliding base 121Y1. Therefore, when adjusting along the Y-axis direction via the Y-axis sliding base 121Y1, the forming drum 123 can be driven to achieve adjustment in the Y-axis direction.

[0085] Specifically, such as Figure 5-7 As shown, for adjusting the Z-axis direction of the molding drum 123, a Z-axis sliding track 121Z2 is fixed on the Y-axis sliding base 121Y1. The Z-axis sliding base 121Z1 slides on the Z-axis sliding track 121Z2 and is driven by the Z-axis driving mechanism 121Z3 to achieve the adjustment of the Z-axis direction of the molding drum 123.

[0086] Furthermore, in this application, the power source for driving the first synchronous belt assembly 131 and the second synchronous belt assembly 132 is a servo motor. The power sources for the Y-axis drive mechanism 121Y3 and the Z-axis drive mechanism 121Z3 are also servo motors. This servo drive method effectively ensures the accuracy of the adjustment of the forming drum 123. By connecting the servo motor to the PLC controller, the position of the forming drum 123 can be accurately adjusted. Simultaneously, the PLC controller can adjust the position of the forming drum 123 based on the edge position of the material on the feeding conveyor belt 230 detected by the vision detection module 250 in the feeding template 30, ensuring precise winding of the material on the forming drum 123 and preventing deviations in material winding on the forming drum 123 due to feeding deviations of the feeding conveyor belt 230.

[0087] 5. Pressure-pressing mechanism 50

[0088] The pressing mechanism 50 includes a hydraulic cylinder and a pressing roller. The hydraulic cylinder is perpendicular to the axis of the forming drum 123, and the installation angle of the hydraulic cylinder is adjustable to ensure that the hydraulic cylinder remains perpendicular to the axis of the forming drum 123 after the position of the forming drum 123 is adjusted. The pressing roller is installed at the output end of the hydraulic cylinder, and the axis of the pressing roller is parallel to the axis of the forming drum 123. The hydraulic cylinder pushes the pressing roller to move towards the forming drum 123 to squeeze the material to fit tightly against the outer surface of the forming drum 123.

[0089] To facilitate a better understanding of the technical solution, the following is a brief description of the overall workflow of the air spring forming machine.

[0090] Material is fed onto the belt conveyor mechanism 430 of the four cutting devices 40 by the feeding roller assemblies 332 on the four feeding components. During the conveying process, the PLC controller judges the deviation of the material edge according to the received offset detection module signal, thereby driving the power cylinder 311 to perform the correction work, so as to drive the high step surface of the pad 322 to slide with the roller 312 to realize automated correction feeding. After correction, the material conveyed to the belt conveyor mechanism 430 is cut by the cutter assembly 410 of the cutting device 40. The cut material block is attracted by the edge of the material block by the traction suction cup at the bottom of the transfer rod 441 in the traction mechanism 440, and then pulled along the track rod 460 to the conveying end of the belt conveyor mechanism 430. Of course, for the curtain material, the curtain joint also needs to be removed, which has been described in detail above and will not be repeated here. The material block pulled to the end of the belt conveyor 430 is driven by the belt conveyor 430 and conveyed to the corresponding feeding conveyor belt 230 of the feeding template 30. Since the two feeding conveyor belts 230 on the same template frame 210 need to feed the forming drum 123 of the forming machine host 10 alternately, and the feeding conveyor belts 230 on the two template frames 210 also need to feed the forming drum 123 alternately, the timing of the belt conveyor 430 conveying to the feeding conveyor belt 230 is controlled by the PLC controller during actual operation. When the feeding conveyor belt 230 feeds material to the forming drum 123, the feeding conveyor belt 230 that feeds the film on the first template frame 210 first slides towards the forming drum 123 to achieve the bonding of the first layer of film. After the film is bonded, the feeding conveyor belt 230 that feeds the film on the first template frame 210 retracts, and the feeding conveyor belt 230 that feeds the fabric slides towards the forming drum 123. The forming drum 123, with the first layer of film bonded, moves along the X-axis towards the second template frame 210 after bonding. The first layer of fabric is attached to the feeding conveyor belt 230 of the second feeding template 210. After attachment, the two feeding conveyor belts 230 on the second feeding template 210 alternately run. During this process, the forming drum 123 continues to move back along the X-axis to attach the second layer of fabric at the first feeding template 210. Finally, it moves to the second feeding template 210 to attach the last layer of film, thus completing the preparation of the air spring semi-finished product. Of course, during the attachment process of the fabric and film materials to the forming drum 123, the pressing mechanism 50 will squeeze the materials to fit tightly against the outer surface of the forming drum 123 to ensure the quality of the prepared air spring semi-finished product.

[0091] Of course, those skilled in the art will recognize that this invention is not limited to the details of the exemplary embodiments described above, but also includes the same or similar structures that can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0092] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0093] The technologies, shapes, and structures not described in detail in this utility model are all known technologies.

Claims

1. An air spring forming machine, characterized in that, include A feeding mechanism (30) includes a tooling carriage (330) for feeding materials; The cutting device (40) includes a belt conveyor (430) for receiving material from a tooling car (330) and a cutter assembly (410) for cutting material on the belt conveyor (430). The feeding template (20) includes a template frame (210), on which two feeding conveyor belts (230) are arranged vertically. The two feeding conveyor belts (230) slide along their respective tracks, and the sliding tracks of the conveying ends of the two feeding conveyor belts (230) intersect, and the intersection point is located at the outer edge of the forming drum (123). The molding machine main unit (10) includes a molding drum (123) for winding material on a template frame (210); The pressing mechanism (50) is used to squeeze the material to fit tightly against the outer surface of the forming drum (123).

2. The air spring forming machine according to claim 1, characterized in that, The feeding mechanism (30) further includes a fixed frame (310), on which a movable frame (320) is slidably mounted. The tooling carriage (330) is mounted on top of the movable frame (320), and the top of the tooling carriage (330) has a feeding roller assembly (332). The movable frame (320) slides on a sliding fulcrum on the fixed frame (310) via a pad (322) fixed to its bottom. The pad (322) is in the form of two stepped sections. The cloth, and the high step surface and the low step surface of the pad (322) are both arranged horizontally, and the high step surface and the low step surface are smoothly connected; when the high step surface of the pad (322) is in sliding engagement with the sliding fulcrum, the wheel (331) of the tooling car (330) is in a suspended state; when the low step surface of the pad (322) is in engagement with the sliding fulcrum, the wheel (331) of the tooling car (330) is in a ground state, and the fixing frame (310) is set in four groups.

3. An air spring forming machine according to claim 2, characterized in that, The pads (322) are arranged in a rectangular array of four at the bottom of the movable frame (320). The length direction of the pads (322) is the same as the sliding direction of the movable frame (320). The top of the fixed frame (310) is equipped with rollers (312) corresponding to each pad (322) so as to form the sliding fulcrum through the rollers (312).

4. An air spring forming machine according to claim 3, characterized in that, The feeding mechanism (30) also includes a power cylinder (311) for providing the sliding power of the pad strip (322) along the sliding fulcrum. The power cylinder (311) is hinged to the fixed frame (310) through a first horizontal hinge seat (3121). The power end of the power cylinder (311) is detachably connected to a connector (321). The connector (321) is hinged to the moving frame (320) through a second horizontal hinge seat (3211). The rotation axis of the first horizontal hinge seat (3121) and the second horizontal hinge seat (3211) are both perpendicular to the sliding direction of the moving frame (320), so that the power cylinder (311) can generate up and down swinging motion during the driving process.

5. An air spring forming machine according to claim 1, characterized in that, The cutter assembly (410) is located above the belt conveyor (430). The cutting angle of the cutter assembly (410) is adjustable along the axis of rotation, which is distributed in the vertical direction and located on the central axis of the fabric.

6. An air spring forming machine according to claim 5, characterized in that, The cutting device (40) also includes a traction mechanism (440) that pulls the cut fabric block and moves it to the rear end of the conveyor of the belt conveyor (430). The traction mechanism (440) includes a horizontally distributed rotating rod (441), and at least two traction suction cups are distributed at the bottom of the rotating rod (441) along the length of the rod. The angle of the rotating rod (441) is adjustable along the rotation axis, and the rotation axis is distributed in the vertical direction and is located on the central axis of the fabric.

7. An air spring forming machine according to claim 1, characterized in that, The feeding conveyor belt (230) slides on the top of the slide rail (220) via the slide (240). The inclination angle of the feeding conveyor belt (230) on the slide (240) is adjustable, and the axis of the inclination adjustment is a horizontal line and perpendicular to the sliding direction of the feeding conveyor belt (230).

8. An air spring forming machine according to claim 1, characterized in that, A vision inspection module (250) is installed on the top of the template frame (210). The detection area of ​​the vision inspection module (250) is located at the end of the conveying belt (230) extending towards the forming drum (123). The output end of the vision inspection module (250) is connected to the PLC controller.

9. An air spring forming machine according to claim 1, characterized in that, The belt conveyor mechanism (430) is configured to be distributed in a rectangular array along the vertical base plane. The four belt conveyor mechanisms (430) are used in conjunction with four tooling cars (330), and the conveying direction of the four feeding conveyor belts (230) is perpendicular to the vertical base plane. The template frame (210) is configured in two sets, and the four feeding conveyor belts (230) on the two sets of template frames (210) respectively receive the materials from the four belt conveyor mechanisms (430).

10. An air spring forming machine according to claim 1, characterized in that, The molding machine main unit (10) further includes an X-axis track base (110) and a machine base (121) sliding on the X-axis track base (110). The X-axis track base (110) is perpendicular to the conveying direction of the feeding conveyor belt (230). Each machine base (121) includes an X-axis sliding base (121X1) slidably connected to the X-axis track base (110), with the sliding direction of the X-axis sliding base (121X1) as the X-axis direction. The X-axis sliding base (121X1) has a Y-axis sliding base (121Y1) adjustable along the Y-axis direction. The sliding base (121Y1) has a Z-axis sliding base (121Z1) that is adjustable along the Z-axis direction. There are two bases (121), and the two bases (121) are driven by a first synchronous belt assembly (131) and a second synchronous belt assembly (132), respectively. The axial direction of the forming drum (123) is parallel to the X-axis direction. The forming drum (123) is installed between the two Z-axis sliding bases (121Z1) and is fixed to one of the Z-axis sliding bases (121Z1) and forms an insertion fit with the other Z-axis sliding base (121Z1).

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