An automatic diaphragm turnover device

Abstract

The utility model relates to a diaphragm production technical field discloses a kind of diaphragm automatic turnover devices, including support base;Fixed sleeve seat;Multi-station turnover base;Negative pressure positioning device;Limiting guide rail;Rotary guide rail;Driving motor;Driving device.In the utility model, the shape of diaphragm shaping groove is mutually adapted with the shape of diaphragm itself, and then avoid the problem of diaphragm reverse concave caused by suction force and other factors, driving device is sequentially rotated multi-station turnover base and rotary guide rail by driving motor control, and the turnover work of diaphragm is realized during rotation in multi-station turnover base, and combined with multiple negative pressure positioning devices, the work of continuously turning multiple diaphragms is realized, and negative pressure positioning device is used for automatically adsorbing and positioning diaphragm, the effect of stable turnover is realized, rotary guide rail realizes the auxiliary discharging work of diaphragm at discharge chute after rotation, avoids the problem of diaphragm residue after turnover.

Description

Technical Field

[0001] This utility model relates to the field of diaphragm production technology, and in particular to an automatic diaphragm flipping device. Background Technology

[0002] The diaphragm is the core sound-generating component of acoustic devices such as loudspeakers, headphones, and microphones. Its structural integrity and surface flatness directly determine the frequency response characteristics and sound quality of the acoustic products. The automated production process of diaphragms involves multiple steps, including cutting, forming, coating, and pressing.

[0003] Since some processes (such as single-sided coating, single-sided adhesive coating, and irregular structure forming) only process a single surface of the diaphragm, the diaphragm must be precisely flipped during process switching so that the unprocessed surface faces the subsequent processing station in order to complete the full surface treatment of the diaphragm or multi-process collaborative processing.

[0004] Diaphragms are mostly made of flexible, thin, and easily damaged materials. Their physical properties directly increase the technical threshold for flipping. Traditional gripper-type flipping is prone to damaging the edges of the diaphragm due to improper control of clamping force. Furthermore, since diaphragms are used in loudspeakers, they generally have a spherical shape with a concave center and slightly convex edges. To ensure stable clamping, multiple suction nozzles are usually set to simultaneously adsorb the workpiece. However, due to the special shape of the diaphragm and its own flexibility, multiple suction nozzles can cause the diaphragm to deform and become concave during the flipping process, which will affect the subsequent diaphragm processing. If only a central suction nozzle is set, the loading position of the diaphragm will have extremely high precision requirements, and it is more likely to cause problems such as "not being able to hold firmly and falling off" or "being held too tightly and damaging it" due to negative pressure. Therefore, an automatic diaphragm flipping device is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides an automatic diaphragm flipping device, which aims to solve the problems in the prior art where the traditional gripper flipping method is prone to damaging the edge of the diaphragm due to improper control of the clamping force, and the suction nozzle can cause the diaphragm to deform and become concave during the flipping process, thus affecting the subsequent diaphragm processing.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an automatic diaphragm flipping device, comprising a support base, a fixed sleeve fixedly connected to one side of the support base, a multi-station flipping base rotatably connected to one end of the fixed sleeve, a negative pressure positioning device provided inside the multi-station flipping base, the negative pressure positioning device being used to flexibly position the diaphragm during flipping, a limiting guide rail fixedly connected to the other end of the fixed sleeve, a rotating guide rail being elastically connected to the end of the limiting guide rail via a torsion spring, an active motor fixedly installed on the other side of the support base, a driving device being provided on the output shaft of the active motor, the driving device being used to drive the multi-station flipping base to rotate and drive the rotating guide rail to rotate respectively.

[0007] As a further description of the above technical solution:

[0008] The fixed sleeve is provided with a feeding groove and a discharging groove, and the multi-station flip base is provided with a diaphragm shaping groove.

[0009] As a further description of the above technical solution:

[0010] The negative pressure positioning device includes a sealed chamber, which is fixedly connected inside the multi-station flip base. A magnetic piston is installed inside the sealed chamber, and a connecting seat is installed on the magnetic piston. A guide wheel is rotatably connected to the connecting seat. A magnetic adsorption ring is fixedly connected inside the sealed chamber.

[0011] As a further description of the above technical solution:

[0012] The multi-station flipping base has a porous adsorption cavity, which is used to connect the sealing chamber and the diaphragm shaping groove. A protective block is fixedly connected inside the sealing chamber. The surface of the guide wheel contacts the surface of the limiting guide rail and the rotating guide rail respectively. A cam is provided on the rotating guide rail.

[0013] As a further description of the above technical solution:

[0014] The magnetic piston assembly includes a main piston plate, the surface of which is connected to the inner wall of the sealed chamber via a piston. One end of the main piston plate is elastically connected to a flexible piston plate via a spring, and the other end of the main piston plate is fixedly connected to a connecting rod and a magnetic ring.

[0015] As a further description of the above technical solution:

[0016] The surface of the flexible piston plate is connected to the inner wall of the sealing chamber, the bottom end of the connecting rod passes through the sealing chamber and is fixedly connected to the connecting seat, and the surface of the magnetic ring is magnetically connected to the surface of the magnetic adsorption ring.

[0017] As a further description of the above technical solution:

[0018] The drive device includes a coupling rod and a connecting frame. One end of the coupling rod is fixedly connected to the output shaft of the drive motor. Half gear one and half gear two are fixedly connected to the coupling rod respectively. A connecting rack is slidably connected to the connecting frame. A connecting gear meshes with the surface of the connecting rack.

[0019] As a further description of the above technical solution:

[0020] The drive device also includes a rotating gear, the end of which is fixedly connected to the multi-station flip base through the fixed sleeve. The connecting gear is fixedly connected to the rotating guide rail through a connecting shaft. The rotating gear has a slot for the connecting shaft to pass through.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, the shape of the diaphragm shaping groove is adapted to the shape of the diaphragm itself, presenting a spherical shape with a concave center and slightly convex edges. The diaphragm is located in the groove and completes the flipping operation. Due to the limitation of the groove shape, the shape of the diaphragm itself can be better maintained, thereby avoiding the problem of the diaphragm being reversed due to suction and other factors. The multi-station flipping base and the rotating guide rail are rotated sequentially by the active motor control drive device. The multi-station flipping base realizes the flipping operation of the diaphragm during rotation. Combined with multiple negative pressure positioning devices, it realizes the continuous flipping operation of multiple diaphragms. The negative pressure positioning device is used to automatically adsorb and position the diaphragm to achieve a stable flipping effect. After the rotating guide rail rotates, it realizes the auxiliary unloading operation of the diaphragm at the unloading trough to avoid the problem of diaphragm residue after flipping.

[0023] 2. In this utility model, the main piston plate is always influenced by the magnetic force and biased towards the magnetic adsorption ring by the magnetic attraction effect of the magnetic ring and the magnetic adsorption ring. Thus, when the guide wheel is removed from the restriction of the limiting guide rail, the main piston plate is affected by the magnetic attraction of the magnetic adsorption ring and moves towards the magnetic adsorption ring. During the movement, the main piston plate interacts with the sealing chamber and generates negative pressure. The negative pressure adsorbs the diaphragm surface through the porous adsorption cavity. Since the porous adsorption cavity can adapt to the diaphragm shaping groove, it can shape and adsorb the diaphragm.

[0024] 3. In this utility model, the rotating guide rail will guide and squeeze the guide wheel at the corresponding position during rotation, causing the main piston plate on the guide wheel to move away from the magnetic adsorption ring. After moving away, the main piston plate will eliminate the negative pressure in the original sealed chamber, so that the diaphragm in the diaphragm shaping groove at the feeding groove loses the negative pressure positioning effect. At this time, the flipped diaphragm can be fed from the feeding groove. The complete flipping operation is achieved. Since there is a cam on the rotating guide rail, the cam will squeeze the guide wheel, which will then cause the main piston plate to generate positive pressure in the sealed chamber. Then, through the positive pressure reaction in the diaphragm shaping groove, the positive pressure blowing effect is achieved, avoiding the problem of the flipped diaphragm sticking to the diaphragm shaping groove. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of an automatic diaphragm flipping device proposed in this utility model;

[0026] Figure 2 This is a schematic diagram of the internal structure of the fixing sleeve of the diaphragm automatic flipping device proposed in this utility model;

[0027] Figure 3 This is a schematic diagram of the active motor of an automatic diaphragm flipping device proposed in this utility model;

[0028] Figure 4 This is a schematic diagram of the internal structure of the multi-station flipping base of the diaphragm automatic flipping device proposed in this utility model;

[0029] Figure 5 This is a schematic diagram of the limiting guide rail for an automatic diaphragm flipping device proposed in this utility model;

[0030] Figure 6 This is a schematic diagram of the multi-station flipping base of an automatic diaphragm flipping device proposed in this utility model;

[0031] Figure 7 This is a schematic diagram of the negative pressure positioning device for an automatic diaphragm flipping device proposed in this utility model;

[0032] Figure 8 This is a schematic diagram of the drive device for an automatic diaphragm flipping device proposed in this utility model.

[0033] Figure 9 This is a schematic diagram of the rotating gear of an automatic diaphragm flipping device proposed in this utility model;

[0034] Figure 10 This is a schematic diagram of the coupling of an automatic diaphragm flipping device proposed in this utility model.

[0035] Legend:

[0036] 1. Support base; 2. Feeding trough; 3. Discharging trough; 4. Fixing sleeve; 5. Multi-station flip base; 6. Diaphragm shaping groove; 7. Negative pressure positioning device; 71. Sealing chamber; 72. Magnetic piston component; 721. Main piston plate; 722. Flexible piston plate; 723. Connecting rod; 724. Magnetic ring; 73. Connecting seat; 74. Guide wheel; 75. Magnetic adsorption ring; 76. Protective block; 8. Limiting guide rail; 9. Rotating guide rail; 10. Active motor; 11. Drive device; 111. Coupling rod; 112. Half gear one; 113. Half gear two; 114. Connecting frame; 115. Linkage rack; 116. Linkage gear; 117. Rotary gear; 118. Coupling shaft; 12. Porous adsorption chamber. Detailed Implementation

[0037] 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.

[0038] Reference Figures 1-3 The embodiment provided by this utility model is as follows: a support base 1, a fixed sleeve 4 is fixedly connected to one side of the support base 1, a multi-station flip base 5 is rotatably connected to one end of the fixed sleeve 4, and a multi-station flip base 5 is provided with a plurality of negative pressure positioning devices 7 arranged in a circular array inside the multi-station flip base 5. The negative pressure positioning devices 7 are used to flexibly position the diaphragm during the flipping.

[0039] Reference Figures 3-5The other end of the fixed sleeve 4 is internally fixedly connected to a limiting guide rail 8. The end of the limiting guide rail 8 is elastically connected to a rotating guide rail 9 via a torsion spring. By setting the rotating guide rail 9, the rotating guide rail 9 can be reset by elastic force after being rotated under force, thus enabling the rotating guide rail 9 to work for a long time. The other side of the support base 1 is fixedly installed with an active motor 10. The output shaft of the active motor 10 is equipped with a drive device 11. The drive device 11 is used to drive the multi-station flip base 5 to rotate and drive the rotating guide rail 9 to rotate. The fixed sleeve 4 is provided with a feeding groove 2 and a discharging groove 3. The multi-station flip base 5 is provided with a diaphragm shaping groove 6. The shape of the diaphragm shaping groove 6 is adapted to the shape of the diaphragm itself. The diaphragm has a concave center and slightly convex edges, forming a spherical shape. The diaphragm is located within this groove and flips over. The shape of the groove helps maintain the diaphragm's shape and avoids the problem of the diaphragm becoming concave due to suction or other factors. The drive device 11 is controlled by the active motor 10 to rotate the multi-station flipping base 5 and the rotating guide rail 9 in sequence. The multi-station flipping base 5 flips the diaphragm during rotation and, combined with multiple negative pressure positioning devices 7, continuously flips multiple diaphragms. The negative pressure positioning devices 7 are used to automatically adsorb and position the diaphragm, achieving a stable flipping effect. After rotation, the rotating guide rail 9 assists in unloading the diaphragm at the unloading trough 3, avoiding the problem of diaphragm residue after flipping.

[0040] Reference Figure 4 , Figure 6 and Figure 7The negative pressure positioning device 7 includes a sealed chamber 71, which is fixedly connected inside the multi-station flip base 5. A magnetic piston 72 is installed inside the sealed chamber 71, and a connecting seat 73 is installed on the magnetic piston 72. A guide wheel 74 is rotatably connected to the connecting seat 73. A magnetic adsorption ring 75 is fixedly connected inside the sealed chamber 71. A porous adsorption cavity 12 is formed inside the multi-station flip base 5. The porous adsorption cavity 12 connects the sealed chamber 71 to the diaphragm shaping groove 6. Because the porous adsorption cavity 12 can adapt to the diaphragm shaping groove 6 to shape and adsorb the diaphragm, there is no problem of excessive force causing the diaphragm to buckle due to adsorption to the edge. Furthermore, through porous adsorption, a stable flipping effect of the diaphragm can be achieved. A protective block 76 for protecting the magnetic adsorption ring 75 is fixedly connected inside the sealed chamber 71. The surfaces of the guide wheel 74 are respectively... The surface contact between the guide rail 8 and the rotating guide rail 9 is limited. The rotating guide rail 9 is equipped with a cam. During rotation, the rotating guide rail 9 will guide and squeeze the guide wheel 74 at the corresponding position, causing the main piston plate 721 on the guide wheel 74 to move away from the magnetic adsorption ring 75. After moving away, the main piston plate 721 will eliminate the negative pressure in the original sealing chamber 71, so that the diaphragm in the diaphragm shaping groove 6 at the feeding groove 3 loses the negative pressure positioning effect. At this time, the flipped diaphragm can be fed from the feeding groove 3. The complete flipping operation is achieved. Since the rotating guide rail 9 is equipped with a cam, the cam will squeeze the guide wheel 74 additionally, which will cause the main piston plate 721 to generate positive pressure in the sealing chamber 71. Then, through the positive pressure reaction in the diaphragm shaping groove 6, the positive pressure blowing effect is achieved, avoiding the problem of the flipped diaphragm sticking to the diaphragm shaping groove 6.

[0041] Reference Figure 7The magnetic piston component 72 includes a main piston plate 721, the surface of which is connected to the inner wall of the sealing chamber 71. One end of the main piston plate 721 is elastically connected to a flexible piston plate 722 via a spring. By setting the elastically positioned flexible piston plate 722, the positive and negative pressures generated in the sealing chamber 71 can be automatically compensated, thereby avoiding excessive pressure acting on the diaphragm and causing deformation and damage. The other end of the main piston plate 721 is fixedly connected to a connecting rod 723 and a magnetic ring 724. The surface of the flexible piston plate 722 is connected to the inner wall of the sealing chamber 71. The bottom end of the connecting rod 723 passes through the sealing chamber 71 and the connecting seat 7. 3. Fixed connection: The surface of the magnetic ring 724 is magnetically connected to the surface of the magnetic adsorption ring 75. The main piston plate 721 is always influenced by the magnetic force and biased towards the magnetic adsorption ring 75 through the magnetic adsorption effect of the magnetic ring 724 and the magnetic adsorption ring 75. Thus, when the guide wheel 74 is removed from the restriction rail 8, the main piston plate 721 is influenced by the magnetic adsorption of the magnetic adsorption ring 75 and moves towards the magnetic adsorption ring 75. During the movement, the main piston plate 721 interacts with the sealing chamber 71 and generates negative pressure. The negative pressure adsorbs the diaphragm surface through the porous adsorption cavity 12. Since the porous adsorption cavity 12 can adapt to the diaphragm shaping groove 6 to shape and adsorb the diaphragm.

[0042] Reference Figures 8-10 The drive unit 11 includes a coupling rod 111, a connecting frame 114, and a rotating gear 117. One end of the coupling rod 111 is fixedly connected to the output shaft of the drive motor 10. Half gear 112 and half gear 113 are fixedly connected to the coupling rod 111 respectively. A connecting rack 115 is slidably connected to the connecting frame 114. A connecting gear 116 meshes with the surface of the connecting rack 115. The end of the rotating gear 117 passes through the fixed sleeve 4 and is fixedly connected to the multi-station tilting base 5. The connecting gear 116 is fixedly connected via a connecting shaft 118. On the rotating guide rail 9, a slot is provided on the rotating gear 117 for the connecting shaft 118 to pass through. By setting the drive device 11, the output force of the active motor 10 is transmitted to the rotating multi-station flipping base 5 and the rotating guide rail 9 in sequence. On the one hand, the multi-station flipping base 5 can flip the diaphragm during rotation, and combined with multiple negative pressure positioning devices 7, it can continuously flip multiple diaphragms. On the other hand, after the rotating guide rail 9 rotates, it can assist in the unloading of the diaphragm at the unloading slot 3, avoiding the problem of diaphragm residue after flipping.

[0043] Working principle: The diaphragm is fed into the diaphragm shaping groove 6 through the feeding groove 2. The shape of the diaphragm shaping groove 6 is adapted to the shape of the diaphragm itself, presenting a spherical shape with a concave center and slightly convex edges. The diaphragm completes the flipping operation within the groove. Due to the limitation of the groove shape, the diaphragm's own shape can be better maintained, thus avoiding the problem of the diaphragm turning concave due to suction or other factors. By starting the active motor 10, the output shaft of the active motor 10 drives the half gear 112 and half gear 113 on the coupling rod 111 to rotate. When the coupling rod 111 rotates one revolution, the half gear 112 first meshes with the coupling rod 111. When the rotating gear 117 rotates, the second half gear 113 meshes with the connecting rack 115 to move. That is, when the first half gear 112 and the second half gear 113 rotate one revolution of the coupling rod 111, there are two states: one is the working state and the other is the non-working state. When the first half gear 112 meshes with the rotating gear 117 to rotate, the first half gear 112 is in the working state, and the second half gear 113 is in the non-working state. When the second half gear 113 meshes with the connecting rack 115 to move, the second half gear 113 is in the working state, and the first half gear 112 is in the non-working state.

[0044] When half gear 112 meshes with rotating gear 117, rotating gear 117 transmits rotation to multi-station flipping base 5. Multi-station flipping base 5 drives multiple diaphragm shaping grooves 6 arranged in a circular array on it to rotate and flip sequentially, thereby achieving the effect of automatic flipping of the diaphragm in the diaphragm shaping groove 6. At the same time, the main piston plate 721 in the sealing chamber 71 corresponding to the diaphragm shaping groove 6 at the feeding trough 2 is squeezed and restricted by guide wheel 74 and limiting guide rail 8, and is always located at the high position of sealing chamber 71. When multi-station flipping base 5 drives the diaphragm shaping groove 6 to rotate, sealing chamber 71 also changes position accordingly. After the guide wheel 74 at this location disengages from the limiting guide rail 8, the magnetic ring 724 is affected by the magnetic attraction of magnetic adsorption ring 75, causing the main piston plate 721 to move towards the magnetic attraction. The auxiliary ring 75 moves, and during the movement, the main piston plate 721 interacts with the sealing chamber 71 and generates negative pressure. The negative pressure adsorbs the diaphragm surface through the porous adsorption chamber 12. Since the porous adsorption chamber 12 can adapt to the diaphragm shaping groove 6 to shape and adsorb the diaphragm, there is no problem of excessive force and reverse concavity caused by adsorption to the edge of the diaphragm. Moreover, through porous adsorption, the effect of stable diaphragm flipping can be achieved, thereby avoiding problems such as displacement, collision and deformation of the diaphragm during flipping in the diaphragm shaping groove 6. When the flipped diaphragm is flipped to the unloading groove 3 in the diaphragm shaping groove 6, the active motor 10 drives the half gear 113 to mesh with the linkage rack 115 through the coupling rod 111. The linkage rack 115 meshes with the linkage gear 116 and drives the rotating guide rail 9 on the connecting shaft 118 to rotate.

[0045] by Figure 4From a perspective of rotation, the overall rotation direction of the multi-station flip base 5 is set to counterclockwise. At this time, the rotation direction of the rotating guide rail 9 is clockwise. The rotating guide rail 9 will move to the feeding groove 3 and guide and squeeze the guide wheel 74 there. This will cause the main piston plate 721 on the guide wheel 74 to move away from the magnetic adsorption ring 75. After moving away, the main piston plate 721 will eliminate the negative pressure in the original sealing chamber 71, so that the diaphragm in the diaphragm shaping groove 6 at the feeding groove 3 will lose the negative pressure positioning effect. At this time, the flipped diaphragm can be fed from the feeding groove 3. The entire flipping operation is completed. At the same time, since the rotating guide rail 9 is equipped with a cam, the cam will squeeze the guide wheel 74, which will cause the main piston plate 721 to generate positive pressure in the sealing chamber 71. Then, through the positive pressure reaction in the diaphragm shaping groove 6, the positive pressure blowing effect is achieved, avoiding the problem of the flipped diaphragm sticking to the diaphragm shaping groove 6.

[0046] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An automatic diaphragm flipping device, comprising a support base (1), characterized in that: A fixed sleeve (4) is fixedly connected to one side of the support base (1). A multi-station flip base (5) is rotatably connected to one end of the fixed sleeve (4). A negative pressure positioning device (7) is provided inside the multi-station flip base (5). The negative pressure positioning device (7) is used to flexibly position the diaphragm during flipping. A limiting guide rail (8) is fixedly connected to the other end of the fixed sleeve (4). A rotating guide rail (9) is elastically connected to the end of the limiting guide rail (8) through a torsion spring. An active motor (10) is fixedly installed on the other side of the support base (1). A driving device (11) is provided on the output shaft of the active motor (10). The driving device (11) is used to drive the multi-station flip base (5) to rotate and drive the rotating guide rail (9) to rotate. A diaphragm shaping groove (6) is opened inside the multi-station flip base (5).

2. The diaphragm automatic flipping device according to claim 1, characterized in that: The fixed sleeve (4) is provided with a feeding groove (2) and a discharging groove (3).

3. The diaphragm automatic flipping device according to claim 1, characterized in that: The negative pressure positioning device (7) includes a sealing chamber (71), which is fixedly connected to the inside of the multi-station flip base (5). A magnetic piston component (72) is provided inside the sealing chamber (71), and a connecting seat (73) is provided on the magnetic piston component (72). A guide wheel (74) is rotatably connected to the connecting seat (73). A magnetic adsorption ring (75) is fixedly connected inside the sealing chamber (71).

4. The diaphragm automatic flipping device according to claim 3, characterized in that: The multi-station flip base (5) has a porous adsorption cavity (12) inside. The porous adsorption cavity (12) is used to connect the sealing chamber (71) and the diaphragm shaping groove (6). A protective block (76) is fixedly connected inside the sealing chamber (71). The surface of the guide wheel (74) is in contact with the surface of the limiting guide rail (8) and the rotating guide rail (9) respectively. A cam is provided on the rotating guide rail (9).

5. The diaphragm automatic flipping device according to claim 3, characterized in that: The magnetic piston component (72) includes a main piston plate (721), the surface of which is connected to the inner wall of the sealed chamber (71) via a piston. One end of the main piston plate (721) is elastically connected to a flexible piston plate (722) via a spring, and the other end of the main piston plate (721) is fixedly connected to a connecting rod (723) and a magnetic ring (724).

6. The diaphragm automatic flipping device according to claim 5, characterized in that: The surface of the flexible piston plate (722) is connected to the inner wall of the sealing chamber (71) piston, the bottom end of the connecting rod (723) passes through the sealing chamber (71) and is fixedly connected to the connecting seat (73), and the surface of the magnetic ring (724) is magnetically connected to the surface of the magnetic adsorption ring (75).

7. The diaphragm automatic flipping device according to claim 1, characterized in that: The drive device (11) includes a coupling rod (111) and a connecting frame (114). One end of the coupling rod (111) is fixedly connected to the output shaft of the drive motor (10). Half gear one (112) and half gear two (113) are fixedly connected to the coupling rod (111). A connecting rack (115) is slidably connected to the connecting frame (114). A connecting gear (116) meshes with the surface of the connecting rack (115).

8. The diaphragm automatic flipping device according to claim 7, characterized in that: The drive device (11) also includes a rotating gear (117), the end of which passes through the fixed sleeve (4) and is fixedly connected to the multi-station flip base (5). The connecting gear (116) is fixedly connected to the rotating guide rail (9) through the connecting shaft (118). The rotating gear (117) has a groove for the connecting shaft (118) to pass through.

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