Cold and hot shaping mechanism for damper

Abstract

The invention relates to the technical field of loudspeaker processing equipment, and discloses a damper cold and hot shaping mechanism which comprises a shell, a hot pressing and cold pressing structure, a rotating disc assembly and a dismounting assembly, the rotating disc assembly drives a rotating disc through a servo motor, an eccentrically-arranged limiting column is used for being matched with a radial groove in the bottom face of a rotating plate, and intermittent automatic circulation of stations is achieved; the dismounting assembly comprises a hollow column, a trapezoidal column and a clamping ball, the trapezoidal column is driven to move by pressing the button, the clamping ball is controlled to stretch out and draw back in a through hole of the hollow column through the taper change of the trapezoidal column, and therefore locking and separation of the mold are achieved. According to the elastic wave shaping device, automatic continuous machining is achieved through the rotating disc structure, the problem that bolt fixing and dismounting of a traditional mold are tedious is solved through the dismounting assembly, pressing type rapid replacement of the mold is achieved, and the production efficiency of elastic wave shaping and model changing convenience are remarkably improved.

Description

Technical Field

[0001] This invention relates to the field of loudspeaker component processing equipment technology, and in particular to a hot and cold shaping mechanism for a spider. Background Technology

[0002] The spider is a core component of a loudspeaker system, primarily responsible for maintaining the correct position of the voice coil within the magnetic gap and providing restoring force. In the manufacturing process of the spider, hot and cold setting is a crucial step, typically requiring initial high-temperature hot pressing to shape it, followed by cold pressing for curing and setting.

[0003] Most current spindle forming equipment uses a single-station or simple rotary table structure. However, in actual production, due to the wide variety of spindle models, the production line needs to frequently change forming molds of different specifications. Existing forming equipment typically uses molds directly fixed to the worktable with bolts and nuts. When changing product models, operators must use wrenches and other tools to remove the bolts one by one, remove the old mold, place the new mold, and retighten the bolts. This traditional mold fixing method is extremely cumbersome, consuming a lot of manpower and time, resulting in long equipment downtime, and severely restricting the overall production efficiency under multi-variety, small-batch production models.

[0004] Therefore, this invention proposes a hot and cold shaping mechanism for a spring wave to overcome the shortcomings of the prior art. Summary of the Invention

[0005] To overcome the above shortcomings, the present invention provides a hot and cold setting mechanism for a spring wave, which aims to improve the problems in the prior art, where the molds of spring wave setting equipment are generally fixed with screws, resulting in cumbersome and time-consuming disassembly and assembly processes, low production line changeover efficiency, and high manual labor intensity.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a hot and cold shaping mechanism for a spring, comprising a shell, a hot pressing structure, a cold pressing structure, a control panel, a turntable assembly, and a disassembly assembly; wherein the hot pressing structure and the cold pressing structure are mounted on the top of the shell, the control panel is mounted on the side of the shell, and the shell serves as a basic frame; the turntable assembly is used to drive the spring to rotate, and the disassembly assembly is used to assemble the mold; The turntable assembly comprises a servo motor, a turntable, a limiting post, a rotating plate, a rotating station, and a support base. The servo motor's power output drives the turntable to rotate, and the limiting post is located on the top of the turntable and rotates accordingly. The rotating plate is located above the turntable, and the outer wall of the limiting post is slidably fitted inside the rotating plate. The support base is installed inside the housing, the rotating plate is rotatably connected to the inside of the support base, and the rotating station is connected to the rotating output end of the support base. Furthermore, the rotating plate rotates inside the support base under the drive of the limiting column, thereby driving the rotating station to rotate. The rotating disk and the rotating plate are combined to achieve continuous processing. Preferably, the disassembly assembly includes a hollow column, a spring, a support column, a trapezoidal column, a retaining ball, and a button. The hollow column is fixedly installed on the rotating station, and the mold is sleeved on the outside of the hollow column. The button is drivenly connected to the support column. Preferably, the support column is slidably installed inside the hollow column, and the trapezoidal column is fixedly connected to the bottom end of the support column and located inside the hollow column; when the button is pressed, it drives the support column and the trapezoidal column to slide downward inside the hollow column. Preferably, the hollow column has a through hole on its side wall, and the retaining ball is movably embedded in the through hole; the outer wall of the trapezoidal column abuts against the retaining ball, and when the trapezoidal column moves downward, the retaining ball is released from force and moves in the direction of the central axis of the hollow column; Preferably, the spring is sleeved on the outer wall of the support column and is located inside the hollow column; during the movement of the button, the spring is compressed, and at the same time the ball is disengaged from the slot of the mold, so as to disassemble the mold; Preferably, the hot pressing structure includes a hot pressing drive cylinder and a hot pressing head. The hot pressing head is located above the rotating station. The operator presets the hot pressing temperature, cold pressing temperature, turntable speed and pressing pressure parameters through the control panel. Preferably, the limiting post is eccentrically disposed on the top surface of the rotating disk, and the bottom surface of the rotating plate is provided with a radial groove for the limiting post to be inserted and slid, thus forming an intermittent transmission engagement; Preferably, the bottom of the housing is equipped with support feet, and the front of the housing is equipped with an inspection door.

[0007] The present invention has the following beneficial effects: 1. This invention, by setting up a turntable assembly and using a servo motor to drive the turntable, in conjunction with the intermittent transmission between the limiting post and the radial groove on the turntable, solves the problem of low efficiency in manual transfer or static processing in the prior art, and achieves the technical effect of realizing automated continuous flow of multiple stations such as spring wave feeding, hot pressing, cold pressing and unloading, thereby improving production efficiency and processing accuracy.

[0008] 2. This invention, by setting up a disassembly component, uses the taper change of the trapezoidal column to control the radial movement of the locking ball in the through hole of the hollow column, and with the automatic reset function of the spring, solves the problem of cumbersome disassembly and assembly and long changeover time caused by the bolt fixing of molds in the prior art. It achieves the technical effect of quickly locking and disassembling the mold by pressing the button without the aid of tools, which significantly improves the changeover efficiency of the production line.

[0009] 3. This invention integrates the hot pressing structure and the cold pressing structure on the same turntable station, and with the control panel for precise control of temperature, pressure and speed parameters, it solves the problem of poor product consistency caused by the separation of hot and cold setting processes in the prior art. It achieves the technical effect of ensuring stable spring wave setting quality, and the equipment has a compact structure and occupies little space. Attached Figure Description

[0010] Figure 1 This is a perspective view of a hot and cold shaping mechanism for a spring wave proposed in this invention; Figure 2 This is a schematic diagram of the outer wall structure of the hot and cold shaping mechanism for a spring wave proposed in this invention; Figure 3 This is a schematic diagram of the inner wall structure of the outer shell of a hot and cold shaping mechanism for a spring wave proposed in this invention; Figure 4 for Figure 3 Enlarged view of point B in the middle; Figure 5 This is a schematic cross-sectional view of the cold pressing structure of a hot and cold shaping mechanism for a spring wave proposed in this invention. Figure 6 for Figure 5 Enlarged view of point A in the middle.

[0011] Legend: 1. Outer shell; 2. Hot-pressed structure; 3. Cold-pressed structure; 4. Control panel; 5. Turntable assembly; 501. Servo motor; 502. Turntable; 503. Limiting post; 504. Rotating plate; 505. Rotating station; 506. Support base; 6. Disassembly assembly; 601. Hollow column; 602. Spring; 603. Support column; 604. Trapezoidal column; 605. Ball clamp; 606. Mold; 607. Button. Detailed Implementation

[0012] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0013] Reference Figures 1-6The present invention provides an embodiment of a hot and cold forming mechanism for a spring, comprising a shell 1 as a basic support frame, a hot pressing structure 2 and a cold pressing structure 3 installed on the top of the shell 1, a control panel 4 installed on the side of the shell 1, a turntable assembly 5 disposed inside the shell 1 and extending to the top, and a disassembly assembly 6 for quick assembly of a mold 606. Support feet are threaded to the four corners of the bottom of the shell 1 to ensure that the equipment is placed stably. An inspection door is hinged to the front of the shell 1 for easy maintenance of internal components. The control panel 4 is used for operators to preset key process parameters such as hot pressing temperature, cold pressing temperature, turntable speed and pressing pressure. Hot pressing structure 2 and cold pressing structure 3 serve as the execution units for shaping and processing. They correspond to different workstations of turntable assembly 5 in terms of spatial distribution. Hot pressing structure 2 includes a first column fixedly installed on the top of the outer shell 1. A hot pressing drive cylinder is fixedly installed on the top of the side wall of the first column. The output end of the hot pressing drive cylinder vertically downwards through the fixed plate and is connected to a hot pressing head. The hot pressing head is located directly above the mold 606 and is used to heat and shape the spring. Similarly, cold pressing structure 3 includes a second column fixedly installed on the top of the outer shell 1. A cold pressing drive cylinder is fixedly installed on the top of the side wall of the second column. The output end of the cold pressing drive cylinder is connected to a cold pressing head located directly above the mold 606 for subsequent cooling and curing. The turntable assembly 5 is the core drive mechanism for realizing intermittent flow of multiple workstations. Specifically, it includes a servo motor 501, a turntable 502, a limiting post 503, a rotating plate 504, a rotating workstation 505, and a support base 506. The servo motor 501 is fixedly installed below the partition on the bottom surface of the inner shell 1. The power output end of the servo motor 501 is vertically upward and fixedly connected to the center of the turntable 502. The turntable 502 rotates continuously with the servo motor 501. The limiting post 503 is eccentrically set on the top surface of the turntable 502 and moves in a circular motion synchronously with the turntable 502. To convert the continuous rotation of the motor into intermittent stepping motion of the workstation, the rotating plate 504 is horizontally positioned above the rotating disk 502. The bottom surface of the rotating plate 504 has a radial groove for the sliding of the limiting post 503. The outer wall of the limiting post 503 and the radial groove inside the rotating plate 504 form a sliding fit. The support base 506 is fixedly connected to the partition inside the outer shell 1 by bolts. A rotating shaft is rotatably connected inside the support base 506. The bottom end of the rotating shaft is fixedly connected to the center of the rotating plate 504, and the top end of the rotating shaft passes through the top plate of the outer shell 1 and is fixedly connected to the center of the rotating workstation 505. The rotating workstation 505 is used to carry the spring wave workpiece to be processed. The rotating plate 504 rotates inside the support base 506 under the drive of the limiting post 503 and drives the rotating workstation 505 at the top to rotate synchronously. Thus, the automatic flow processing of the spring wave between the loading and unloading, hot pressing, and cold pressing workstations is realized through the cooperation of the rotating disk 502 and the rotating plate 504. The main structure of the disassembly assembly 6 includes a hollow column 601 vertically fixedly installed on the top of the rotating station 505, and a support column 603 slidably inserted inside the hollow column 601. The top of the support column 603 extends out of the top of the hollow column 601 and is fixedly connected to a button 607 for the operator to press. The bottom of the support column 603 is fixedly connected to a trapezoidal column 604 located at the bottom of the inner cavity of the hollow column 601. The hollow column 601 serves as a connecting carrier, and its outer diameter is adapted to the inner diameter of the mounting hole opened in the center of the mold 606. The mold 606 is fitted onto the outside of the hollow column 601 through the mounting hole, thereby achieving the initial positioning of the mold 606 in the horizontal direction. To achieve vertical locking of the mold 606, several through holes are provided on the lower circumferential side wall of the hollow column 601. The retaining ball 605 is movably embedded in the through holes. The outer wall of the trapezoidal column 604 is designed as a frustum-shaped structure with a diameter that gradually decreases from bottom to top. The outer wall surface of the trapezoidal column 604 and the surface of the retaining ball 605 are always in contact. At the same time, a spring 602 is sleeved on the outer wall of the support column 603. The spring 602 is completely located in the internal space of the hollow column 601. The top end of the spring 602 abuts against the top wall of the inner cavity of the hollow column 601, and the bottom end of the spring 602 abuts against the flange extending from the outer wall of the support column 603. The elastic force generated by the spring 602 being in a compressed state gives the support column 603 and the trapezoidal column 604 a continuous upward reset tendency. With the mold 606 installed in place, an annular groove corresponding to the height of the retaining ball 605 is provided in the mounting hole on the inner wall of the mold 606. Under natural conditions without external force intervention, the elastic force of the spring 602 pushes the trapezoidal column 604 upward, causing the large-diameter end of the bottom of the trapezoidal column 604 to squeeze the retaining ball 605, forcing the retaining ball 605 to move radially outward. This causes part of the retaining ball 605 to protrude from the outer wall of the hollow column 601 and be tightly locked into the annular groove of the mold 606. This rigid extrusion fit from the inside out ensures that the mold 606 is firmly locked on the rotating station 505 and can withstand the impact force in the hot pressing and cold pressing processes without loosening. As a preferred embodiment, in order to achieve high-precision hot pressing and cold pressing curing of the spring wave, the hot pressing structure 2 specifically includes a first column vertically fixed to the top of the outer shell 1, a hot pressing drive cylinder installed on the top of the side wall of the first column, and a hot pressing head connected to the output end of the hot pressing drive cylinder. The hot pressing head integrates a heating element and is located directly above the mold 606. The cold pressing structure 3 adopts a similar mechanical architecture to the hot pressing structure 2, including a second column, a cold pressing drive cylinder, and a cold pressing head located directly above the mold 606. The operator can independently preset the hot pressing temperature, cold pressing duration, and cylinder pressing pressure parameters through the control panel 4, thereby adapting to the processing requirements of spring waves of different materials. As another preferred embodiment, in order to ensure that the turntable assembly 5 can convert the continuous rotation of the servo motor 501 into the precise intermittent stepping motion of the rotating station 505, the limiting post 503 is eccentrically set at the edge of the top surface of the turntable 502, rather than at the rotation center of the turntable 502. At the same time, the bottom surface of the rotating plate 504 is provided with several radially evenly distributed grooves. The number of radial grooves corresponds to the number of mold 606 stations set on the rotating station 505. The outer diameter of the limiting post 503 and the groove width of the radial groove maintain a precise sliding fit. This structure forms a dial-type intermittent indexing mechanism, which eliminates accumulated errors and ensures the repeatability of the positioning accuracy of the processing station. As another preferred embodiment, in order to adapt to workshop floor environments with different flatness and to facilitate subsequent maintenance of internal components such as motors, the bottom four corners of the housing 1 are respectively threaded with height-adjustable support feet. The level of the machine body can be adjusted by rotating the support feet. The front of the housing 1 is equipped with a maintenance door with a handle through a hinge. Opening the maintenance door allows for direct lubrication or maintenance of the servo motor 501, support base 506 and rotating plate 504 located inside the housing 1. In addition, to ensure the reliability of the disassembly component 6, the length of the hollow column 601 extending from the top of the support column 603 is designed to match the effective stroke of the trapezoidal column 604. This ensures that when the button 607 is pressed down to its limit position, the minimum diameter area at the bottom of the trapezoidal column 604 can be precisely aligned with the ball 605, thereby providing sufficient inward retraction space for the ball 605. This allows the ball 605 to completely disengage from the annular groove on the inner wall of the mold 606, eliminating the risk of jamming.

[0014] Working principle: When using this mechanism for spring wave shaping, the first stage is the preparation stage. The outer shell 1 serves as the basic frame to stably support the top hot pressing structure 2, cold pressing structure 3, and the side control panel 4. The operator presets the key process parameters such as hot pressing temperature, cold pressing temperature, turntable speed, and pressing pressure through the control panel 4, and then starts the equipment to enter the automated processing flow. During the operation of the turntable assembly 5, the servo motor 501 is powered on and started, driving the turntable 502 to rotate continuously. The turntable 502 drives the limiting post 503 at its top to make a circular motion. When the limiting post 503 rotates to a specific angle, it will cut into the radial groove on the bottom surface of the rotating plate 504. As the limiting post 503 continues to rotate, its outer wall presses against the inner wall of the radial groove, causing the rotating plate 504 to rotate around the central axis of the support base 506. The rotating plate 504 drives the rotating station 505 at the top and the spring placed on the mold 606 to rotate synchronously through the rotating shaft, sending the spring into the station below the hot pressing structure 2 and the cold pressing structure 3 in sequence. When the limiting post 503 rotates out of the radial groove, the rotating plate 504 and the rotating station 505 stop rotating. At this time, the hot pressing head or the cold pressing head presses down to process. Through this intermittent transmission, the continuous and stable hot and cold shaping production of the spring is realized. When it is necessary to disassemble or replace mold 606, the operator presses button 607 downwards. Button 607 drives support column 603 to slide downwards inside hollow column 601, and drives trapezoidal column 604 at the bottom to move downwards together. During this process, the flange on the outer wall of support column 603 gradually compresses spring 602. As the trapezoidal column 604 moves downward, the smaller diameter portion of its outer wall gradually aligns with the retaining ball 605, causing the radial pressure exerted by the trapezoidal column 604 on the retaining ball 605 to disappear. The retaining ball 605 loses its internal support and is in a state of release. Under the action of gravity or the inner wall of the mold, the retaining ball 605 moves towards the central axis of the hollow column 601 and retracts into the through hole, thus completely disengaging from the annular groove in the inner hole of the mold 606, releasing the lock on the mold 606. The operator can then easily remove the mold 606. After releasing the button 607, the mechanism automatically resets under the reset force of the spring 602, allowing for the clamping and installation of a new mold, achieving the effect of quick mold assembly and disassembly.

Claims

1. A hot and cold shaping mechanism for a spring, comprising a housing (1), a hot pressing structure (2), a cold pressing structure (3), a control panel (4), a turntable assembly (5), and a disassembly assembly (6). Its features are, The hot pressing structure (2) and the cold pressing structure (3) are installed on the top of the shell (1), the control panel (4) is installed on the side of the shell (1), and the shell (1) serves as the basic frame; the turntable assembly (5) is used to drive the spring to rotate, and the disassembly assembly (6) is used to assemble the mold (606). The turntable assembly (5) includes a servo motor (501), a turntable (502), a limit post (503), a rotating plate (504), a rotating station (505), and a support base (506). The servo motor (501) drives the rotating disk (502) to rotate, and the limit post (503) is set on the top of the rotating disk (502) and rotates accordingly; The rotating plate (504) is disposed above the rotating disk (502), and the outer wall of the limiting post (503) is slidably fitted inside the rotating plate (504); The support base (506) is installed inside the outer shell (1), the rotating plate (504) is rotatably connected to the inside of the support base (506), and the rotating station (505) is connected to the rotating output end of the support base (506); The rotating plate (504) rotates inside the support base (506) under the drive of the limiting column (503) and drives the rotating station (505) to rotate. The rotating disk (502) and the rotating plate (504) cooperate to achieve continuous processing.

2. The hot and cold setting mechanism for a spring wave according to claim 1, characterized in that: The disassembly assembly (6) includes a hollow column (601), a spring (602), a support column (603), a trapezoidal column (604), a retaining ball (605), and a button (607). The hollow column (601) is fixedly installed on the rotating station (505), and the mold (606) is sleeved on the outside of the hollow column (601). The button (607) is connected to the support column (603) for transmission.

3. The hot and cold setting mechanism for a spring wave according to claim 2, characterized in that: The support column (603) is slidably installed inside the hollow column (601), and the trapezoidal column (604) is fixedly connected to the bottom end of the support column (603) and located inside the hollow column (601); when the button (607) is pressed, it drives the support column (603) and the trapezoidal column (604) to slide downward inside the hollow column (601).

4. The hot and cold setting mechanism for a spring wave according to claim 3, characterized in that: The hollow column (601) has a through hole on its side wall, and the ball (605) is movably embedded in the through hole; the outer wall of the trapezoidal column (604) abuts against the ball (605), and when the trapezoidal column (604) moves downward, the ball (605) is released from force and moves in the direction of the central axis of the hollow column (601).

5. The hot and cold setting mechanism for a spring wave according to claim 3, characterized in that: The spring (602) is sleeved on the outer wall of the support column (603), and the spring (602) is located inside the hollow column (601); the button (607) compresses the spring (602) during movement, and at the same time the ball (605) disengages from the slot of the mold (606) to disassemble the mold (606).

6. The hot and cold setting mechanism for a spring wave according to claim 1, characterized in that: The hot pressing structure (2) includes a hot pressing drive cylinder and a hot pressing head. The hot pressing head is located above the rotating station (505). The operator presets the hot pressing temperature, cold pressing temperature, turntable speed and pressing pressure parameters through the control panel (4).

7. The hot and cold setting mechanism for a spring wave according to claim 1, characterized in that: The limiting post (503) is eccentrically disposed on the top surface of the rotating disk (502), and the bottom surface of the rotating plate (504) is provided with a radial groove for the limiting post (503) to be inserted and slid, thus forming an intermittent transmission engagement.

8. The hot and cold setting mechanism for a spring wave according to claim 1, characterized in that: The bottom of the outer casing (1) is equipped with support feet, and the front of the outer casing (1) is equipped with an inspection door.

Images