A spring straightening apparatus

Abstract

The utility model discloses a spring shaping equipment, including frame, be located on the drive assembly of frame, with drive assembly transmission connection's pivot and transmission connection on the pivot's first shaping component and second shaping component, first shaping component and second shaping component are shaping to spring same end's different side part respectively, first shaping component includes first swing arm and first shaping block, drive assembly drives pivot rotation, to make first swing arm swing first shaping block and shape spring's first side, second shaping component includes second swing arm and second shaping block, drive assembly drives pivot rotation, to make second swing arm swing second shaping block and shape spring's second side. Adopt the utility model, can shape processing to spring end's two sides simultaneously to improve production efficiency, guarantee spring's production quality.

Description

Technical Field

[0001] This utility model relates to the field of spring manufacturing technology, and in particular to a spring shaping device. Background Technology

[0002] In the production and processing of mattress springs, the shaping quality of the spring ends directly determines the assembly accuracy and connection stability of the spring structure. Existing spring shaping equipment typically includes a shaping assembly consisting of a fixed mold and a movable mold. During operation, the spring is placed on the side of the fixed mold, and the movable mold presses down to shape the side of the spring. However, the shaping assembly of existing spring shaping equipment is usually a single unit. When both sides of the spring need to be shaped, the equipment must typically be stopped, the spring removed, the angles of the fixed mold and the movable mold adjusted, the spring placed back in, the equipment restarted, and the movable mold used to shape the other side of the spring. This method requires an additional mold angle adjustment mechanism, which not only significantly increases the complexity of the equipment structure, leading to larger equipment size and higher manufacturing costs, but also prolongs the processing time per cycle and reduces production efficiency due to process interruptions and adjustment operations. Furthermore, repeated adjustments to the mold angle cause wear on the mold, reducing accuracy, which increases production and maintenance costs and affects the shaping quality. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a spring shaping device that can simultaneously shape both sides of the spring end, has a simple structure, does not require stopping the machine to adjust the angle, improves production efficiency, and ensures the production quality of the spring. To solve the above-mentioned technical problems, this utility model provides a spring shaping device, including a frame, a drive assembly mounted on the frame, a rotating shaft driven by the drive assembly, and a first shaping assembly and a second shaping assembly driven by the rotating shaft. The first shaping assembly and the second shaping assembly respectively shape different sides of the same end of the spring.

[0004] The first shaping component includes a first swing arm and a first shaping block. The driving end of the first swing arm is connected to the rotating shaft, and the transmission end of the first swing arm is connected to the first shaping block. The driving component drives the rotating shaft to rotate so that the first swing arm swings the first shaping block to shape the first side of the spring.

[0005] The second shaping component includes a second swing arm and a second shaping block. The driving end of the second swing arm is connected to the rotating shaft, and the transmission end of the second swing arm is connected to the second shaping block. The driving component drives the rotating shaft to rotate so that the second swing arm swings the second shaping block to shape the second side of the spring.

[0006] As an improvement to the above solution, the spring shaping device further includes a cam assembly, which includes a first cam and a second cam. A first roller is provided on the driving end of the first swing arm, the fixed end of the first cam is fixed on the rotating shaft, and the swing end of the first cam abuts against the first roller.

[0007] The second swing arm has a second roller on its driving end, the fixed end of the second cam is fixed to the rotating shaft, and the swing end of the second cam abuts against the second roller.

[0008] As an improvement to the above solution, the movable seat includes a middle mold and a frame. The middle mold is located in the middle of the frame. The first shaping block and the second shaping block are respectively connected to both ends of the frame. The first shaping block and the second shaping block are respectively located on both sides of the middle mold. Slide rods are provided on both sides of the frame. Slide grooves are provided on both sides of the first shaping block and the second shaping block. The slide grooves of the first shaping block and the second shaping block can move along the slide rods towards or away from the middle mold.

[0009] As an improvement to the above solution, the spring shaping device further includes a movable seat on which the spring is placed. The first shaping block is provided with a first movable frame and a first shaping mold. The sliding groove is provided on both sides of the first movable frame. The first shaping mold has first protrusions on both sides of the end near the middle mold. A first groove is formed between the two first protrusions. When the first shaping block slides toward the middle mold, the end of the middle mold near the first shaping mold can be inserted into the first groove.

[0010] The second shaping block is provided with a second moving frame and a second shaping mold. The sliding groove is provided on both sides of the second moving frame. The second shaping mold is provided with second protrusions on both sides of the end near the middle mold. A second groove is formed between the two second protrusions. When the second shaping block slides toward the middle mold, the end of the middle mold near the second shaping mold can be inserted into the second groove.

[0011] As an improvement to the above solution, both the first protrusion and the second protrusion are provided with extrusion slopes at their ends. The angles between the extrusion slopes and the outer sides of the first protrusion and the second protrusion are acute angles. A clamping groove is provided in the extrusion slope. The clamping groove is recessed in the extrusion slope and is set along the extrusion slope. The longitudinal section of the clamping groove is an inwardly concave arc shape, and the non-shaped part of the spring can be embedded in the clamping groove.

[0012] The inner sides of the first protrusion and the second protrusion are provided with extrusion grooves. The extrusion grooves are vertically arranged along the inner sides of the first protrusion and the second protrusion. The extrusion grooves are interconnected with the clamping grooves. The cross-section of the extrusion groove is a concave arc shape. The arc radius of the extrusion groove is larger than the arc radius of the clamping groove. The side of the protrusion structure formed after the spring is shaped can abut against the extrusion groove.

[0013] As an improvement to the above solution, the corner of the middle mold is provided with a transition slope. The transition slope is inclined from the middle part of the side of the middle mold near the first protrusion and the second protrusion towards the side of the middle mold near the spring. At least part of the longitudinal projection of the transition slope falls on the junction of the clamping groove and the extrusion groove. The junction of the shaped part and the unshaped part of the spring after shaping can abut against the transition slope.

[0014] The movable seat also includes two limiting blocks, which are respectively located at the ends of the first shaping block and the second shaping block near the middle mold. The limiting blocks protrude from the ends of the first shaping block and the second shaping block. The middle mold is provided with a limiting groove, the shape of which corresponds to the shape of the limiting block, and the limiting block can be inserted into the limiting groove.

[0015] As an improvement to the above solution, the spring shaping device further includes a fixed base, the middle parts of the first swing arm and the second swing arm are both hinged to the fixed base, a connecting seat is provided between the movable seat and the fixed base, one end of the connecting seat is fixed to the fixed base, and the other end of the connecting seat is hinged to the middle part of the movable seat.

[0016] An adjustment mechanism is provided between the movable seat and the fixed seat. The adjustment mechanism includes a fixed rod and a telescopic rod. One end of the fixed rod is hinged to the fixed seat, and the other end of the fixed rod is sleeved on the telescopic rod. The end of the telescopic rod away from the fixed rod is hinged to the movable seat. The telescopic rod can extend and retract relative to the fixed rod.

[0017] As an improvement to the above solution, the transmission end of the first swing arm is provided with a first elongated hole. The first elongated hole passes through the side of the transmission end of the first swing arm and is arranged along the length direction of the first swing arm. The first shaping component also includes a first sliding post. The first sliding post protrudes from the side of the first shaping block. The first elongated hole is sleeved on the outside of the first sliding post. When the first swing arm swings, the two sides of the first elongated hole in the width direction can drive the sides of the first sliding post to abut against each other, and the first sliding post can slide in the first elongated hole.

[0018] The second swing arm has a second elongated hole at its transmission end. The second elongated hole passes through the side of the transmission end of the second swing arm and is arranged along the length direction of the second swing arm. The second shaping component also includes a second sliding post. The second sliding post protrudes from the side of the second shaping block. The second elongated hole is sleeved on the outside of the second sliding post. When the second swing arm swings, the two sides of the second elongated hole in the width direction can drive the sides of the second sliding post to abut against each other. The second sliding post can slide within the second elongated hole.

[0019] As an improvement to the above solution, the spring shaping equipment further includes a pushing assembly, which includes a connecting frame and a pushing mechanism. The pushing mechanism includes a pushing drive and a pushing block. The fixed end of the pushing drive is fixed to the top of the frame, and the movable end of the pushing drive is connected to the pushing block. The pushing block has a movable hole, which is an elongated hole. The connecting frame includes a side rod, a pushing rod, and a pushing plate. The middle part of the side rod is hinged to the side of the movable seat. The pushing rod is located at the top of the side rod and passes through the movable hole. The pushing plate is located at the bottom of the side rod and is located on the side of the middle mold. The pushing plate extends laterally toward the center of the middle mold. The pushing drive can push the pushing plate to move toward or away from the middle mold.

[0020] As an improvement to the above solution, there are two first shaping components, which are respectively disposed at both ends of the rotating shaft; there are two second shaping components, which are respectively disposed at both ends of the rotating shaft; there are two fixed seats and two movable seats, which are respectively disposed on opposite sides; and the two ends of the spring correspond to the positions of the fixed seats and the movable seats on both sides.

[0021] Implementing this utility model has the following beneficial effects: This utility model spring shaping device includes a frame, a drive assembly mounted on the frame, a rotating shaft driven by the drive assembly, and a first shaping assembly and a second shaping assembly driven by the rotating shaft. The first shaping assembly includes a first swing arm and a first shaping block, and the second shaping assembly includes a second swing arm and a second shaping block. The drive end of the first swing arm is driven by the rotating shaft and the drive end is driven by the first shaping block. The drive end of the second swing arm is driven by the rotating shaft and the drive end is driven by the second shaping block. The drive assembly drives the rotating shaft to rotate, simultaneously causing the first swing arm to swing the first shaping block and the second swing arm to swing the second shaping block. This allows the first shaping block to shape the first side of the spring, and the second shaping block to shape the second side of the same end of the spring. This enables simultaneous shaping of different sides of the same end of the spring without the need for an additional mold angle adjustment mechanism or to stop the machine to remove the spring, adjust the mold angle, and reprocess it. This simplifies the equipment structure, avoids the increased equipment size and manufacturing costs caused by adding a mold angle adjustment mechanism, avoids process interruptions, shortens single processing time, and improves production efficiency. It also reduces wear caused by repeated mold angle adjustments, ensures spring shaping accuracy, reduces production and maintenance costs, and ensures the shaping quality of the spring ends, meeting the requirements of mattress spring production for assembly accuracy and connection stability, and adapting to the needs of large-scale spring production. Attached Figure Description

[0022] Figure 1 This is a structural schematic diagram of the spring shaping device of this utility model; Figure 2 This is a partial structural schematic diagram of the spring shaping device of this utility model; Figure 3 This is a schematic diagram of the structure of the movable seat and spring of this utility model; Figure 4 yes Figure 3 A magnified view of part A in the image; Figure 5 This is a schematic diagram of the structure of the movable seat and the fixed seat of this utility model; Figure 6 This is a schematic diagram of the pusher assembly of this utility model. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the following will describe this utility model in further detail with reference to the accompanying drawings. It is hereby declared that the terms "up," "down," "left," "right," "front," "back," "inner," and "outer," etc., appearing or about to appear in this document, are based solely on the accompanying drawings and are not intended to specifically limit this utility model.

[0024] See Figure 1 and Figure 2 This utility model discloses a spring shaping device, including a frame (not shown in the drawings), a drive assembly 1 mounted on the frame, a rotating shaft 2 driven by the drive assembly 1, a first shaping assembly 3 and a second shaping assembly 4 driven by the rotating shaft 2, and a fixed seat 7 and a movable seat 8 disposed between the first shaping assembly 3 and the second shaping assembly 4. A spring 9 is placed on the movable seat 8. The first shaping assembly 3 and the second shaping assembly 4 respectively shape different sides of the same end of the spring 9 on the movable seat 8. The drive assembly 1 is preferably a rotary motor, but it can also be a component with rotational characteristics, such as a rotary cylinder. The drive assembly 1 transmits power to the rotating shaft 2 and drives the rotating shaft 2 to rotate. When the drive assembly 1 drives the rotating shaft 2 to rotate, the rotating shaft 2 can simultaneously drive the drive ends of the first swing arm 31 and the second swing arm 41 to move, realizing the synchronous movement of the two swing arms.

[0025] Before the spring 9 is shaped, the spring 9 is transported to the side of the fixed seat 7 by the robot and the end of the spring 9 is inserted into the movable seat 8. Then the drive assembly 1 drives the rotating shaft 2 to rotate, and the first shaping assembly 3 and the second shaping assembly 4 shape the two sides of the same end of the spring 9 respectively.

[0026] The first shaping component 3 includes a first swing arm 31 and a first shaping block 32. The middle part of the first swing arm 31 is hinged to the fixed base 7. The first swing arm 31 can swing stably around the hinge point. The driving end of the first swing arm 31 is connected to the rotating shaft 2 and can swing around the fixed base 7 under the drive of the rotating shaft 2. The transmission end of the first swing arm 31 is connected to the first shaping block 32. The driving component 1 drives the rotating shaft 2 to rotate. The first swing arm 31 swings the first shaping block 32 to shape the first side 91 of the spring 9 so that the first side 91 of the spring 9 forms a protruding structure. This protruding structure is one side of the spring-spring structure required for the spring bed assembly.

[0027] The second shaping component 4 includes a second swing arm 41 and a second shaping block 42. The middle part of the second swing arm 41 is hinged to the fixed base 7. The driving end of the second swing arm 41 is connected to the rotating shaft 2, and the transmission end of the second swing arm 41 is connected to the second shaping block 42. The driving component drives the rotating shaft 2 to rotate. Under the synchronous drive of the rotating shaft 2, the second swing arm 41 swings around the fixed base 7. The second swing arm 41 swings the second shaping block 42 to shape the second side 92 of the spring 9, so that the second side 92 of the spring 9 forms a protruding structure. This process is carried out synchronously with the shaping process of the first shaping component 3. Compared with the existing equipment, which requires completing the shaping of one side first and then stopping the machine to adjust and process the other side, this method does not require stopping the mold angle and can complete the processing of the spring structure on both sides of the same end of the spring 9 in one go.

[0028] The beneficial effects of this utility model embodiment are as follows: This utility model embodiment of the spring shaping device includes a frame, a drive assembly 1 mounted on the frame, a rotating shaft 2 drivenly connected to the drive assembly 1, and a first shaping assembly 3 and a second shaping assembly 4 drivenly connected to the rotating shaft 2. The first shaping assembly 3 includes a first swing arm 31 and a first shaping block 32, and the second shaping assembly 4 includes a second swing arm 41 and a second shaping block 42. The drive end of the first swing arm 31 is drivenly connected to the rotating shaft 2, and the drive end is connected to the first shaping block 32. The drive end of the second swing arm 41 is drivenly connected to the rotating shaft 2, and the drive end is connected to the second shaping block 42. The drive assembly 1 drives the rotating shaft 2 to rotate, synchronously causing the first swing arm 31 to swing the first shaping block 32 and the second swing arm 41 to swing the second shaping block 42. This allows the first shaping block 32 to shape the first side of the spring 9, and the second shaping block 42 to shape the second side of the same end of the spring 9. This enables the shaping of different sides of the same end of the spring 9 to be completed simultaneously without the need for an additional mold angle adjustment mechanism or to stop the machine to remove the spring 9, adjust the mold angle, and reprocess it. This simplifies the equipment structure, avoids the increase in equipment size and manufacturing costs caused by adding a mold angle adjustment mechanism, avoids process interruption, shortens the single processing time, and improves production efficiency. It also reduces wear caused by repeated mold angle adjustments, ensures the shaping accuracy of the spring 9, reduces production and maintenance costs, and ensures the shaping quality of the spring 9 end, meeting the requirements of mattress spring production for assembly accuracy and connection stability, and adapting to the needs of large-scale spring production.

[0029] See Figure 2The spring 9 shaping device further includes a cam assembly 55, which converts the rotational motion of the rotating shaft 2 into the swinging motion of the first swing arm 31 and the second swing arm 41. The cam assembly 55 includes a first cam 51 and a second cam 52. A first roller 312 is provided on the driving end of the first swing arm 31. The fixed end of the first cam 51 is fixed to the rotating shaft 2, and the swinging end of the first cam 51 abuts against the first roller 312. When the first cam 51 rotates with the rotating shaft 2, the contour curve of its swinging end changes position with the rotation angle. The ups and downs of the contour curve push the driving end of the first swing arm 31 to swing back and forth around the hinge point of the fixed seat 7, thereby driving the first shaping block 32 to move toward the first side 91 of the spring 9 and complete the shaping.

[0030] The second swing arm 41 has a second roller 412 on its driving end, the fixed end of the second cam 52 is fixed to the rotating shaft 2, and the swing end of the second cam 52 abuts against the second roller 412. The setting angle and position of the second cam 52 can be adapted to the setting angle and position of the first cam 51 and the shaping structure at different positions on the side of the spring 9.

[0031] In this embodiment, the protrusion angles of the first cam 51 and the second cam 52 are different. Thus, when the rotating shaft 2 rotates, the first cam 51 first drives the first swing arm 31 to swing, shaping the first side 91 of the spring 9. After this, the first shaping block 32 retracts, and the second cam 52 then drives the second swing arm 41 to swing, shaping the second side 92 of the spring 9. This sequential driving configuration allows for control of the interval between shaping actions on both sides by adjusting the difference in the protrusion angles of the two cams. Unlike existing equipment, which requires rotating a mold, the continuous rotation of the rotating shaft 2 is sufficient to connect the shaping actions on both sides, reducing interruptions in equipment operation. Simultaneously, the contour parameters of the second cam 52 can also be preset to ensure that the swing amplitude of the second swing arm 41 matches that of the first swing arm 31, making the protrusion dimensions on both sides of the spring 9 symmetrical and avoiding deviations in the spring structure caused by inconsistent driving parameters.

[0032] See Figure 3The movable seat 8 includes a middle mold 81 and a frame 82. The frame 82 is the basic support structure of the movable seat 8, used to fix the middle mold 81 and provide an installation and movement reference for the first shaping block 32 and the second shaping block 42. The middle mold 81 is located in the middle of the frame 82, and its upper and lower ends correspond to the first shaping block 32 and the second shaping block 42, respectively. When the shaping spring 9 is placed on the middle mold 81, the side of the spring 9 to be shaped can be precisely aligned with the working ends of the first shaping block 32 and the second shaping block 42. The first shaping block 32 and the second shaping block 42 are respectively connected to both ends of the frame 82. The first shaping block 32 and the second shaping block 42 are located on both sides of the intermediate mold 81. The frame 82 is provided with slide rods 821 on both sides. The first shaping block 32 and the second shaping block 42 are provided with slide grooves 36 on both sides. The slide grooves 36 of the first shaping block 32 and the second shaping block 42 can move along the slide rods 821 towards or away from the intermediate mold 81. When the first swing arm 31 and the second swing arm 41 drive the corresponding shaping block to move towards the intermediate mold 81, the slide groove 36 can slide stably along the slide rods 821. Through the guiding constraint of the slide rods 821 on the slide grooves 36, the shaping block is restricted to move only in a straight line direction towards or away from the intermediate mold 81, avoiding lateral deviation or swaying of the shaping block during movement.

[0033] The first shaping block 32 is provided with a first moving frame 33 and a first shaping mold 34. The sliding groove 36 is provided on both sides of the first moving frame 33. The first moving frame 33 can move stably along the sliding rod 821 with the swing of the first swing arm 31, providing a precise moving reference for the first shaping mold 34. The first shaping mold 34 has first protrusions 341 on both sides near the middle mold 81. A first groove 342 is formed between the two first protrusions 341. When the first shaping block 32 slides toward the middle mold 81, the end of the middle mold 81 near the first shaping mold 34 can be inserted into the first groove 342. When the first shaping block 32 slides toward the middle mold 81, the end of the middle mold 81 near the first shaping mold 34 can be precisely inserted into the first groove 342. At this time, the spring 9 placed on the middle mold 81 will be limited between the first groove 342 and the middle mold 81. The two first protrusions 341 will apply pressure to the spring 9 from both sides, causing the corresponding part of the spring 9 to deform in a preset shape, and finally forming a regular outward convex structure.

[0034] The structure and working principle of the second shaping block 42 are adapted to those of the first shaping block 32: the second shaping block 42 is provided with a second moving frame 43 and a second shaping mold 44. The sliding groove 36 is provided on both sides of the second moving frame 43. The sliding groove 36 on both sides of the second moving frame 43 slides in cooperation with the sliding rod 821 of the frame 82 to ensure stable movement of the second shaping block 42 and prevent the mold from loosening. The second shaping mold 44 has second protrusions 441 on both sides near the middle mold 81. A second groove 442 is formed between the two second protrusions 441. When the second shaping block 42 slides toward the middle mold 81, the end of the middle mold 81 near the second shaping mold 44 can be inserted into the second groove 442. When the second shaping block 42 slides toward the middle mold 81, the end of the middle mold 81 near the second shaping mold 44 is inserted into the second groove 442. The second protrusion 441 applies a squeezing force to the other side of the spring 9, causing the corresponding part of the spring 9 to form an outward convex structure.

[0035] The size and shape of the first groove 342 and the second groove 442 can be set separately to adapt to different spring structures.

[0036] See Figure 4 Both the first protrusion 341 and the second protrusion 441 have extrusion bevels 46 at their ends. The angles between the extrusion bevels 46 and the outer sides of the first protrusion 341 and the second protrusion 441 are acute angles. Since the end of the spring 9 is annular, the extrusion bevels 46 of the two first protrusions 341 and the two extrusion bevels 441 respectively form a figure-eight structure. This structure can be adapted to the annular contour of the non-shaped part of the end of the spring 9. In addition, when the first shaping block 32 and the second shaping block 42 approach the middle mold 81, the figure-eight extrusion bevels 46 can first fit against the outer arc surface of the spring 9 annulus, avoiding the local stress concentration caused by the flat protrusion end directly pressing against the annulus in the existing equipment. This provides a stable pre-positioning effect for subsequent extrusion shaping. At the same time, the bevel guide ensures that the spring 9 will not shift laterally during the extrusion process, ensuring the initial positioning accuracy of the shaped part.

[0037] Furthermore, to prevent the non-shaped portion from being affected by compression during the shaping process, a clamping groove 461 is provided within the extrusion slope 46. The clamping groove 461 is recessed within the extrusion slope 46 and is set along the extrusion slope 46. The longitudinal section of the clamping groove 461 is an inwardly concave arc shape, allowing the non-shaped portion of the spring 9 to be embedded within the clamping groove 461. This arc-shaped contour matches the annular curvature of the non-shaped portion of the spring 9. When the extrusion slope 46 is in contact with the annular shape of the spring 9, the non-shaped portion of the spring 9 can be precisely embedded within the clamping groove 461. When the first protrusion 341 and the second protrusion 441 compress the shaped portion of the spring 9, the clamping groove 461 can form a wrapping restraint on the non-shaped portion, preventing deformation of the non-shaped portion due to the transmission of extrusion force.

[0038] Meanwhile, both the first protrusion 341 and the second protrusion 441 have extrusion grooves 462 on their inner sides, providing space to accommodate the deformation of the spring 9's shaping portion. The extrusion grooves 462 are vertically arranged along the inner sides of the first protrusion 341 and the second protrusion 441. Since the shaping portion of the spring 9 will form a vertical strip structure after extrusion, the vertically arranged extrusion grooves 462 can be adapted to the extension direction of the vertical strip structure, preventing the deformed portion from twisting due to space constraints. The extrusion groove 462 is interconnected with the clamping groove 461, accommodating the continuous shaped and non-shaped portions of the spring 9. This ensures smooth deformation of the spring 9 from the non-shaped to the shaped portion, preventing deformation breaks. The cross-section of the extrusion groove 462 is a concave arc shape, with a radius larger than that of the clamping groove 461. This accommodates the displacement requirements of the shaped portion of the spring 9 during deformation and also allows for slight expansion during material extrusion, preventing the deformed portion from becoming undersized or cracking due to excessive extrusion. The side of the protruding structure formed after the spring 9 is shaped can abut against the extrusion groove 462.

[0039] The corner of the middle mold 81 is provided with a transition slope 811, which optimizes the cooperation between the spring 9 and the middle mold 81, as well as the cooperation between the middle mold 81 and the first protrusion 341 and the second protrusion 441. The transition slope 811 slopes from the middle part of the side of the middle mold 81 near the first protrusion 341 and the second protrusion 441 towards the side of the middle mold 81 near the spring 9. This slope structure directly weakens the sharp features of the corner of the middle mold 81. On the one hand, during the placement of the spring 9, the rounded transition shape avoids the corner of the middle mold 81 from obstructing the end of the spring 9, allowing the end of the spring 9 to enter more smoothly. The preset position on the side of the intermediate mold 81 eliminates the need for manual adjustment of the spring 9's posture, simplifying the feeding operation. On the other hand, after the spring 9 is shaped, the transition slope 811 reduces the jamming between the spring 9 and the corner of the intermediate mold 81, improving the output efficiency. At the same time, when the first protrusion 341 and the second protrusion 441 move toward the intermediate mold 81 along with the first shaping block 32 and the second shaping block 42, the transition slope 811 avoids direct contact between the corner of the intermediate mold 81 and the protrusion, preventing mechanical interference due to overlapping movement trajectories, ensuring smooth shaping action, and avoiding shaping failure caused by component wear or action jamming.

[0040] Furthermore, at least a portion of the longitudinal projection of the transition slope 811 falls at the junction of the clamping groove 461 and the extrusion groove 462, allowing the junction of the shaped portion and the unshaped portion of the spring 9 to abut against the transition slope 811. When the first protrusion 341 and the second protrusion 441 extrude force on the spring 9, the junction of the shaped portion (corresponding to the deformation area within the extrusion groove 462) and the unshaped portion (corresponding to the embedding area within the clamping groove 461) of the spring 9 will naturally abut against the transition slope 811. The transition slope 811, through its own inclination angle, provides an outward stress release channel for the junction, preventing the spring 9 from cracking or breaking due to stress concentration during the shaping process, ensuring the structural integrity and elastic performance of the formed spring 9, and meeting the strength requirements of the spring 9 for long-term use in the spring 9 bed.

[0041] The movable seat 8 also includes two limiting blocks 83, which are respectively located at the ends of the first shaping block 32 and the second shaping block 42 near the middle mold 81. The limiting blocks 83 protrude from the ends of the first shaping block 32 and the second shaping block 42. The middle mold 81 is provided with a limiting groove 812, the shape of which corresponds to the shape of the limiting block 83, to ensure that the limiting block 83 can be inserted into the limiting groove 812. By constraining the limiting block 83 through the limiting groove 812, the travel trajectory of the limiting block 83 is limited, thereby indirectly regulating the movement path of the first shaping block 32 and the second shaping block 42. This prevents the first shaping block 32 and the second shaping block 42 from shifting laterally due to uneven force or transmission deviation when sliding towards the middle mold 81. It ensures that the first protrusion 341 and the second protrusion 441 can be accurately aligned with the part of the spring 9 to be shaped, preventing dimensional deviations in the protruding structures on both sides of the spring 9 due to the offset of the shaping blocks. This further ensures the forming accuracy of the spring structure and ensures that the springs 9 produced in batches maintain consistent structural specifications.

[0042] See Figure 5 A connecting seat 71 is provided between the movable seat 8 and the fixed seat 7. One end of the connecting seat 71 is fixed to the fixed seat 7, and the other end of the connecting seat 71 is hinged to the middle of the movable seat 8. The hinge structure gives the movable seat 8 the freedom to swing about the hinge point relative to the connecting seat 71, thereby adjusting the relative position of the spring 9 with the first shaping component 3 and the second shaping component 4, and thus adjusting the shaping position. When the movable seat 8 swings about the connecting seat 71, the acting position of the first shaping component 3 and the second shaping component 4 relative to the spring 9 will change accordingly, thereby adjusting the shaping position of the spring 9. This can accommodate springs 9 of different lengths and different end shaping position requirements, eliminating the need to configure a dedicated movable seat 8 for springs 9 of different specifications, and improving the equipment's adaptability to multiple types of springs 9.

[0043] An adjustment mechanism 72 is also provided between the movable seat 8 and the fixed seat 7. The adjustment mechanism 72 is used to regulate and lock the swing state of the movable seat 8. The adjustment mechanism 72 includes a fixed rod 721 and a telescopic rod 722. One end of the fixed rod 721 is hinged to the fixed seat 7. The hinge structure allows the fixed rod 721 to adjust its angle with the swing of the movable seat 8, avoiding structural jamming caused by rigid connection. The other end of the fixed rod 721 is sleeved on the telescopic rod 722 to form a telescopic sleeve structure. The end of the telescopic rod 722 away from the fixed rod 721 is hinged to the movable seat 8. The telescopic rod 722 can extend and retract relative to the fixed rod 721. Through the hinged cooperation at both ends, the extension and retraction of the telescopic rod 722 can be directly converted into a force that pushes the movable seat 8 to rotate around the hinge point of the connecting seat 71. When the spring 9 needs to be adjusted, the overall length of the adjusting mechanism 72 is changed by controlling the extension and retraction of the telescopic rod 722 relative to the fixed rod 721: if the telescopic rod 722 extends outward, it will push the movable seat 8 to swing away from the fixed rod 721; if the telescopic rod 722 retracts inward, it will pull the movable seat 8 to swing closer to the fixed rod 721. By precisely controlling the extension and retraction of the telescopic rod 722, the swing angle of the movable seat 8 can be precisely adjusted, thereby determining the relative position of the spring 9 with the first shaping component 3 and the second shaping component 4, ensuring that the shaping position of springs 9 of different specifications can match the working position of the first shaping block 32 and the second shaping block 42.

[0044] Because this equipment adopts a "first shaping of the first side 91, then shaping of the second side 92" operation process, both the first swing arm 31 and the second swing arm 41 will generate lateral displacement during their respective swinging processes. If this lateral displacement is not released, the lateral force will be transmitted to the movable seat 8, causing the movable seat 8 to deviate from the preset positioning position, which in turn causes the subsequent shaping position of the spring 9 to deviate. To solve the above problem, the transmission end of the first swing arm 31 is provided with a first elongated hole 311. The first elongated hole 311 passes through the side of the transmission end of the first swing arm 31 and is set along the length direction of the first swing arm 31. The first shaping component 3 also includes a first sliding post 35. The first sliding post 35 protrudes from the side of the first shaping block 32. The first elongated hole 311 is sleeved on the outside of the first sliding post 35. The first elongated hole 311 provides sliding space along the length direction of the swing arm for the first sliding post 35 to cooperate with it, while ensuring that the first elongated hole 311 can stably bear the power transmission requirements when the first swing arm 31 swings. When the first swing arm 31 swings, the sides of the first elongated hole 311 in the width direction can drive the sides of the first sliding column 35 to abut against each other, and the first sliding column 35 can slide within the first elongated hole 311. When the first swing arm 31 swings under the drive of the cam assembly 5, the first swing arm 31 will simultaneously generate longitudinal (towards / away from the spring 9) and lateral (along the length direction of the swing arm). At this time, the sides of the first elongated hole 311 in the width direction will abut against the sides of the first sliding column 35, transmitting the power of the longitudinal displacement to the first sliding column 35, thereby driving the first shaping block 32 to move towards the first side 91 of the spring 9 to complete the shaping. The lateral displacement is released by the sliding of the first sliding column 35 within the first elongated hole 311, preventing the lateral force from being transmitted to the first shaping block 32, thereby preventing the first shaping block 32 from driving the movable seat 8 to swing.

[0045] Correspondingly, the transmission end of the second swing arm 41 is provided with a second elongated hole 411. The second elongated hole 411 passes through the side of the transmission end of the second swing arm 41 and is arranged along the length direction of the second swing arm 41. The second shaping component 4 also includes a second sliding column 45. The second sliding column 45 protrudes from the side of the second shaping block 42. The second elongated hole 411 is sleeved on the outside of the second sliding column 45. When the second swing arm 41 swings, the two sides of the second elongated hole 411 in the width direction can drive the sides of the second sliding column 45 to abut against each other. The second sliding column 45 can slide within the second elongated hole 411. When the second swing arm 41 swings under the drive of the second cam 52, it will also generate longitudinal and lateral displacement. The two sides of the second elongated hole 411 in the width direction abut against the sides of the second sliding column 45, transmitting the longitudinal power to the second shaping block 42 to complete the shaping of the second side 92 of the spring 9. The lateral displacement is released by the sliding of the second sliding column 45 within the second elongated hole 411, preventing the lateral force from causing the movable seat 8 to swing.

[0046] The mating structure of the first elongated hole 311 with the first sliding column 35 and the second elongated hole 411 with the second sliding column 45 provides the first shaping block 32 and the second shaping block 42 with lateral displacement freedom, retaining only the longitudinal driving displacement to realize the shaping action, effectively avoiding the swing of the movable seat 8 due to lateral force, ensuring that the spring 9 is always in the preset positioning state throughout the shaping process, and ensuring the forming position accuracy of the spring structure of the first side 91 and the second side 92.

[0047] See Figure 6 After the spring 9 is shaped, the shaped part is prone to getting stuck on the intermediate mold 81. To facilitate the ejection of the spring 9, the spring shaping equipment also includes a pusher assembly 6. The pusher assembly 6 includes a connecting frame 61 and a pusher mechanism 62. The pusher mechanism 62 includes a pusher drive 621 and a pusher block 622. The fixed end of the pusher drive 621 is fixed to the top of the frame 82, and the movable end of the pusher drive 621 is connected to the pusher block 622. The pusher drive 621 outputs a linear driving force, driving the pusher block 622 to move in a direction closer to or away from the intermediate mold 81, providing a power source for subsequent pusher actions. The pusher block 622 is provided with a movable hole 623, which is an elongated oval hole. This elongated oval hole structure is used to provide a moving adaptation space for the push rod 612 of the connecting frame 61, avoiding jamming between the push rod 612 and the pusher block 622 due to differences in movement trajectory, and ensuring smooth power transmission.

[0048] The connecting frame 61 includes a side rod 611, a push rod 612, and a push plate 613. The middle part of the side rod 611 is hinged to the side of the movable seat 8. The side rod 611 can swing stably around the hinge point to form a rotation fulcrum for the pushing action. The push rod 612 is located at the top of the side rod 611 and passes through the movable hole 623. The push plate 613 is located at the bottom of the side rod 611 and is located on the side of the middle mold 81. The push plate 613 extends laterally toward the center of the middle mold 81. The push plate 613 can be placed correspondingly on the spring 9 on the middle mold 81. The pushing drive member 621 can push the push plate 613 to move toward or away from the middle mold 81. After the spring 9 has completed the shaping of both sides, the pusher drive 621 drives the push block 622 to move. Through the cooperation of the movable hole 623 and the push rod 612, the side rod 611 swings, causing the push plate 613 to move towards the center of the middle mold 81 until it contacts the side of the shaped spring 9 and applies a pushing force to push the spring 9 out of the middle mold 81. After the material is discharged, the pusher drive 621 drives the push block 622 to reset, and the side rod 611 and the push plate 613 also reset, preparing for the shaping and discharge of the next spring 9.

[0049] Two first shaping components 3 are respectively disposed at both ends of the rotating shaft 2. Two second shaping components 4 are also respectively disposed at both ends of the rotating shaft 2. Two fixed seats 7 and two movable seats 8 are respectively disposed on opposite sides, forming a symmetrical structure for synchronous shaping of both ends of the spring 9. The two ends of the spring 9 correspond to the positions of the fixed seats 7 and the movable seats 8 on both sides. Since the rotating shaft 2 is an integrated transmission component, when the driving component 1 drives the rotating shaft 2 to rotate, it can drive the first shaping components 3 at both ends to move synchronously, ensuring that the first swing arms 31 and the first shaping blocks 32 at both ends complete the swinging and shaping actions with the same rhythm and amplitude. This synchronicity can avoid the forming time difference or size deviation of the spring structure on the first side 91 at both ends of the spring 9, and ensure the symmetry of the protruding structure on the first side 91 at both ends of the spring 9. Similarly, as the rotating shaft 2 rotates synchronously, the second cams 52 at both ends can synchronously push the corresponding second swing arms 41 to swing, so that the second shaping blocks 42 at both ends can synchronously shape the second side 92 of the spring 9.

[0050] The above are preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications are also considered to be within the protection scope of this utility model.

Claims

1. A spring shaping device, characterized in that, It includes a frame, a drive assembly mounted on the frame, a rotating shaft driven by the drive assembly, and a first shaping assembly and a second shaping assembly driven by the rotating shaft. The first shaping assembly and the second shaping assembly respectively shape different sides of the same end of the spring. The first shaping component includes a first swing arm and a first shaping block. The driving end of the first swing arm is connected to the rotating shaft, and the transmission end of the first swing arm is connected to the first shaping block. The driving component drives the rotating shaft to rotate so that the first swing arm swings the first shaping block to shape the first side of the spring. The second shaping component includes a second swing arm and a second shaping block. The driving end of the second swing arm is connected to the rotating shaft, and the transmission end of the second swing arm is connected to the second shaping block. The driving component drives the rotating shaft to rotate so that the second swing arm swings the second shaping block to shape the second side of the spring.

2. The spring shaping device according to claim 1, characterized in that, The spring shaping device also includes a cam assembly, which includes a first cam and a second cam. A first roller is provided on the driving end of the first swing arm. The fixed end of the first cam is fixed on the rotating shaft, and the swing end of the first cam abuts against the first roller. The second swing arm has a second roller on its driving end, the fixed end of the second cam is fixed to the rotating shaft, and the swing end of the second cam abuts against the second roller.

3. The spring shaping device according to claim 1, characterized in that, The spring shaping device further includes a movable seat on which the spring is placed. The movable seat includes a middle mold and a frame. The middle mold is located in the middle of the frame. The first shaping block and the second shaping block are respectively connected to both ends of the frame. The first shaping block and the second shaping block are respectively located on both sides of the middle mold. The frame has sliding rods on both sides. The first shaping block and the second shaping block have sliding grooves on both sides. The sliding grooves of the first shaping block and the second shaping block can move along the sliding rods toward or away from the middle mold.

4. The spring shaping device according to claim 3, characterized in that, The first shaping block is provided with a first moving frame and a first shaping mold. The sliding groove is provided on both sides of the first moving frame. The first shaping mold is provided with first protrusions on both sides of the end near the middle mold. A first groove is formed between the two first protrusions. When the first shaping block slides toward the middle mold, the end of the middle mold near the first shaping mold can be inserted into the first groove. The second shaping block is provided with a second moving frame and a second shaping mold. The sliding groove is provided on both sides of the second moving frame. The second shaping mold is provided with second protrusions on both sides of the end near the middle mold. A second groove is formed between the two second protrusions. When the second shaping block slides toward the middle mold, the end of the middle mold near the second shaping mold can be inserted into the second groove.

5. The spring shaping device according to claim 4, characterized in that, Both the first protrusion and the second protrusion have extrusion slopes at their ends. The angles between the extrusion slopes and the outer sides of the first protrusion and the second protrusion are acute angles. The extrusion slopes have clamping grooves that are recessed within and along the extrusion slopes. The longitudinal section of the clamping grooves is an inwardly concave arc shape, allowing the non-shaped portion of the spring to be embedded within the clamping grooves. The inner sides of the first protrusion and the second protrusion are provided with extrusion grooves. The extrusion grooves are vertically arranged along the inner sides of the first protrusion and the second protrusion. The extrusion grooves are interconnected with the clamping grooves. The cross-section of the extrusion groove is a concave arc shape. The arc radius of the extrusion groove is larger than the arc radius of the clamping groove. The side of the protrusion structure formed after the spring is shaped can abut against the extrusion groove.

6. The spring shaping device according to claim 5, characterized in that, The corner of the middle mold is provided with a transition slope. The transition slope is inclined from the middle part of the side of the middle mold near the first protrusion and the second protrusion toward the side of the middle mold near the spring. At least part of the longitudinal projection of the transition slope falls on the junction of the clamping groove and the extrusion groove. The junction of the shaped part and the unshaped part of the spring after shaping can abut against the transition slope. The movable seat also includes two limiting blocks, which are respectively located at the ends of the first shaping block and the second shaping block near the middle mold. The limiting blocks protrude from the ends of the first shaping block and the second shaping block. The middle mold is provided with a limiting groove, the shape of which corresponds to the shape of the limiting block, and the limiting block can be inserted into the limiting groove.

7. The spring shaping device according to claim 3, characterized in that, The spring shaping device also includes a fixed base, the middle part of the first swing arm and the middle part of the second swing arm are both hinged to the fixed base, a connecting seat is provided between the movable seat and the fixed base, one end of the connecting seat is fixed to the fixed base, and the other end of the connecting seat is hinged to the middle part of the movable seat; An adjustment mechanism is also provided between the movable seat and the fixed seat. The adjustment mechanism includes a fixed rod and a telescopic rod. One end of the fixed rod is hinged to the fixed seat, and the other end of the fixed rod is sleeved on the telescopic rod. The end of the telescopic rod away from the fixed rod is hinged to the movable seat. The telescopic rod can extend and retract relative to the fixed rod.

8. The spring shaping device according to claim 7, characterized in that, The first swing arm has a first elongated hole at its transmission end. The first elongated hole passes through the side of the transmission end of the first swing arm and is arranged along the length direction of the first swing arm. The first shaping component also includes a first sliding post. The first sliding post protrudes from the side of the first shaping block. The first elongated hole is sleeved on the outside of the first sliding post. When the first swing arm swings, the two sides of the first elongated hole in the width direction can drive the sides of the first sliding post to abut against each other. The first sliding post can slide in the first elongated hole. The second swing arm has a second elongated hole at its transmission end. The second elongated hole passes through the side of the transmission end of the second swing arm and is arranged along the length direction of the second swing arm. The second shaping component also includes a second sliding post. The second sliding post protrudes from the side of the second shaping block. The second elongated hole is sleeved on the outside of the second sliding post. When the second swing arm swings, the two sides of the second elongated hole in the width direction can drive the sides of the second sliding post to abut against each other. The second sliding post can slide within the second elongated hole.

9. The spring shaping device according to claim 3, characterized in that, The spring shaping equipment also includes a pushing assembly, which includes a connecting frame and a pushing mechanism. The pushing mechanism includes a pushing drive and a pushing block. The fixed end of the pushing drive is fixed to the top of the frame, and the movable end of the pushing drive is connected to the pushing block. The pushing block has a movable hole, which is an elongated hole. The connecting frame includes a side rod, a pushing rod, and a pushing plate. The middle part of the side rod is hinged to the side of the movable seat. The pushing rod is located at the top of the side rod and passes through the movable hole. The pushing plate is located at the bottom of the side rod and is located on the side of the middle mold. The pushing plate extends laterally toward the center of the middle mold. The pushing drive can push the pushing plate to move toward or away from the middle mold.

10. The spring shaping device according to claim 7, characterized in that, There are two first shaping components, which are respectively disposed at both ends of the rotating shaft. There are two second shaping components, which are respectively disposed at both ends of the rotating shaft. There are two fixed seats and two movable seats, which are respectively disposed on opposite sides. The two ends of the spring correspond to the positions of the fixed seats and the movable seats on both sides.

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