Biological space capsule rotary machining device and method

Abstract

The invention discloses a rotary machining device and method for a biological space capsule, and belongs to the technical field of biological space capsule machining. The rotary machining device for the biological space capsule comprises a base, a cushion plate is arranged in the middle of the upper end of the base, five machining tools are arranged on one half circle of the outer portion of the cushion plate, and two pairs of machining tools are arranged on the other half circle of the outer portion of the cushion plate in a mirror image mode. The problems that a cavity needs to be reserved in the front end of an existing multi-station machining machine tool in the middle position, and the machining efficiency is affected are solved, a machining tool connected with the first sound insulation ring is driven by the first sound insulation ring to transversely slide in a fixing frame along a threaded rod under the condition that the first sound insulation ring is supported by a transmission frame, and the machining efficiency is improved. And after transmission of the first bevel gear and the second bevel gear, the first sound insulation ring can relatively move after rotation, and the first sound insulation ring is relatively moved and unfolded to expose one side of the upper end of the pad, so that the raw materials in the biological space capsule can be conveniently taken out.

Description

Technical Field

[0001] The present invention relates to the technical field of biological space capsule processing, and in particular to a biological space capsule rotation processing device and method. Background Art

[0002] The rotary processing device for biological space capsule processing is a processing equipment specially designed for the manufacturing process of biological space capsules. It uses rotary motion to perform precision processing on key structures such as the capsule shell and connecting parts. This device can ensure processing accuracy and surface quality, and meet the space capsule's high requirements for sealing, strength and stability. Through rotary processing, it can achieve precise manufacturing of complex shapes and structures and improve production efficiency.

[0003] A Chinese patent with publication number CN217344714U discloses a rotary multi-station processing machine tool, including a chassis and a rotary table arranged on the chassis, the rotary table including a bearing seat fixed on the top of the chassis, a rotatable cylinder vertically inserted in the bearing seat, a turntable laterally and concentrically fixed to the upper end of the cylinder, a servo motor fixed on the chassis, a small gear sleeved and fixed on the rotating shaft of the servo motor, and a large gear sleeved and fixed outside the cylinder and meshing with the small gear. Multiple workpieces are subjected to multiple different types of processing procedures on the same processing equipment at the same time, completely avoiding the frequent transfer and loading and unloading of multiple workpieces between different processing equipment, thereby greatly simplifying the operation and achieving the effect of saving time and labor, and there is no need to recalibrate the processing position before processing, thereby effectively improving the processing efficiency.

[0004] When the multi-station processing machine tool of the above-mentioned patent performs rotation processing on the biological space capsule in the middle position, in order to take out the biological space capsule, a cavity needs to be reserved at the front end of the multi-station processing machine tool to facilitate the taking out and putting in of the biological space capsule from the cavity position. However, the reserved cavity cannot be installed with processing components used for processing, resulting in a reduction in the number of processing components surrounding the biological space capsule, affecting the processing efficiency. Summary of the invention

[0005] The purpose of the present invention is to provide a biological space capsule rotation processing device and method, in which the first sound insulation ring drives the connected processing tool to slide laterally along the threaded rod in the fixed frame under the support of the transmission frame, and the first sound insulation ring can move relatively after rotation after being driven by the first bevel gear and the second bevel gear, and move relatively and unfold to expose one side of the upper end of the pad, which is convenient for the placement and removal of the biological space capsule raw materials, and solves the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a biological space capsule rotating processing device, comprising a base, a pad is arranged in the middle of the upper end of the base, and five processing tools are arranged on one-half circle of the outer side of the pad, and the five processing tools are fixed on the upper end of the base and can directly contact the biological space capsule processing material placed on the upper end of the pad, contact and process the corresponding positions, and after the processing tools complete the processing of the corresponding positions, the rotation of the pad can adjust the direction and angle of the material placed on the upper end, and further processing can be performed after the angle is adjusted, and two pairs of processing tools are arranged in a mirror image on the other half circle of the outer side of the pad, and a first sound insulation ring is arranged between a pair of the processing tools. A first bevel gear is welded to the lower end of the first sound insulation ring, and the first bevel gear can rotate synchronously with the rotation of the first sound insulation ring. The first bevel gear can drive the second bevel gear that is attached to the lower end to rotate as the first sound insulation ring rotates. A second bevel gear is meshed with one side of the lower end of the outer portion of the first bevel gear, and a movable hole is horizontally penetrated inside the second bevel gear. When the user takes out and places the biological space capsule on the upper end of the pad, the user holds the first sound insulation ring with his hand. After holding the first sound insulation ring and rotating it to unfold it, the transmission block can rotate and unfold around the first bevel gear as the center. At the same time, the rotation of the first bevel gear can drive the second bevel gear that is attached to the side to rotate, and the rotation of the second bevel gear can facilitate subsequent lateral sliding.

[0007] Preferably, a threaded rod that fits with each other is provided through the interior of the movable hole, and the threaded rod is fixed in a fixed frame. The second bevel gear can be transmitted by being fixed inside the fixed frame, and the second bevel gear and the first bevel gear at the upper end can be supported at the same time. A fixed frame welded and fixed to the base is provided at the lower end of the outside of the threaded rod, and the two ends of the threaded rod are welded and fixed to the inner wall of the fixed frame. The second bevel gear that fits the first bevel gear can rotate as it is held by hand and drives the first sound insulation ring to rotate. The second bevel gear can complete lateral sliding after relative motion with the outside of the threaded rod, and the lateral sliding adjusts the lateral position of the first sound insulation ring, so that the first sound insulation ring slides laterally while rotating and unfolding. When processing the biological space capsule at the upper end of the pad, two sets of mirror-distributed processing tools connected to the inside of the first sound insulation ring rotate and move relatively, and then wrap around the front end of the pad.

[0008] Preferably, a transmission frame is arranged between the outside of the second bevel gear and the outside of the first bevel gear, and the outside of the second bevel gear and the outside of the second bevel gear are both rotatably connected to the inside of the transmission frame. The connection of the transmission frame to the first bevel gear and the second bevel gear can facilitate the transmission between the first bevel gear and the second bevel gear. While facilitating the transmission, it also facilitates the lateral sliding of the transmission frame in the fixed frame, so that the first sound insulation ring slides laterally after being restricted by the threaded rod after rotation, so that the first sound insulation ring rotates and can expose one side of the outside of the pad.

[0009] Preferably, the two sides of the transmission frame are slidably connected to the two sides inside the fixed frame through a sliding block. After the second bevel gear rotates outside the threaded rod, the transmission frame is first restricted by the fixed frame and then slides laterally. During the lateral sliding process, the sliding block will be embedded in the two sides inside the fixed frame. The sliding block is embedded in the two sides inside the fixed frame and slides laterally at the embedded position. The embedding of the sliding block can improve the stability of the lateral sliding of the transmission frame.

[0010] Preferably, a second sound insulation ring is arranged around the half circle position on the upper end of the base, and an extension piece is arranged between the two first sound insulation rings respectively facing the inner wall of the second sound insulation ring. The first sound insulation ring can be extended through the extension piece and the extension piece is made to fit the inner wall of the second sound insulation ring, so that the noise can be wrapped when the biological space capsule raw materials on the upper end of the pad are processed, and the wrapping can prevent the internal noise from being transmitted.

[0011] Preferably, a sound insulation board is provided at the upper end of the second sound insulation ring, and the sound insulation board and the second sound insulation ring are an integrated structure. The sound insulation board at the upper end, together with the second sound insulation ring, the extension piece and the first sound insulation ring surrounding the lower end, can comprehensively wrap the material placed on the upper end of the pad. The wrapping can limit the noise generated when the material on the upper end of the pad is processed, improve the environmental quality during equipment processing, and avoid the high noise generated by the simultaneous start-up of multiple first telescopic devices and second telescopic devices. The upper end of the pad is covered by the sound insulation board, and the pad is wrapped by the second sound insulation ring, the extension piece and the first sound insulation ring, so as to isolate the noise while preventing external foreign matter from entering and affecting the processing of the biological space capsule material.

[0012] Preferably, the outer walls of the second sound insulation ring, the first sound insulation ring and the extension piece are surrounded by sound insulation cotton, and the sound insulation cotton is fixedly connected to the second sound insulation ring, the first sound insulation ring and the extension piece respectively by bolts. The sound insulation cotton is penetrated by the bolts and installed on the outer walls of the second sound insulation ring, the first sound insulation ring and the extension piece respectively. The fixing with bolts can facilitate the installation and replacement of the sound insulation cotton.

[0013] A biological space capsule rotation processing method comprises the following steps:

[0014] Step 1: Place the bio-space capsule processing materials on the upper end of the tray;

[0015] Step 2: manually push the first sound insulation ring, and the first sound insulation ring rotates on the upper end of the transmission frame with the first bevel gear as the center, and the first bevel gear drives the second bevel gear to rotate;

[0016] Step 3: The rotation of the second bevel gear generates relative motion with the threaded rod passing through the movable hole. After the fixed frame restricts the transmission frame, the transmission frame is transformed from rotational motion to lateral linear motion.

[0017] Step 4: one end of the two first sound insulation rings fit together, and while moving relative to each other, the extension piece at the other end is driven to move toward the second sound insulation ring, so that the second sound insulation ring and the extension piece fit together;

[0018] Step 5: Wrap the pad with a second sound insulation ring and a pair of first sound insulation rings.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. When placing the biological space capsule raw material on the upper end of the pad, the first sound insulation ring is manually pulled to make the first sound insulation ring rotate with the first bevel gear as the center, and a meshing connection is generated between the outer walls of the first bevel gear and the second bevel gear. The second bevel gear can be rotated through the meshing connection, and the movable hole passing through the middle of the rotating second bevel gear and the outer wall of the threaded rod generate relative motion, so that the second bevel gear moves laterally while rotating. The lateral movement of the second bevel gear enables the first sound insulation ring to move laterally while rotating when the first sound insulation ring is pulled to rotate and expose the pad, so that the front end of the outside of the biological space capsule rotating processing device is completely exposed, so that the processing tool can completely surround the biological space capsule raw material, avoiding reducing the number of installed processing tools in order to reserve a position for taking out and placing the biological space capsule raw materials.

[0021] 2. A second sound insulation ring is arranged around one side of the upper end of the pad of the present invention, and the second sound insulation ring is fixed to the upper end of the base, while a pair of first sound insulation rings are arranged in a mirror image on the other side of the upper end of the pad, and one end of the two mirror image distributed first sound insulation rings fit together, and the other end of the first sound insulation ring is extended through an extension piece and fits with the second sound insulation ring. The noise generated when the material on the upper end of the pad is processed can be limited by wrapping, thereby improving the environmental quality during equipment processing and avoiding the high noise generated by the simultaneous start-up of multiple first telescopic devices and second telescopic devices. The upper end of the pad is covered by a sound insulation board, and the pad is wrapped by the second sound insulation ring, the extension piece and the first sound insulation ring, which can isolate the noise while preventing foreign matter from entering and affecting the processing of the biological capsule material. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a stereoscopic diagram of the overall external structure of the present invention;

[0023] Figure 2 An exploded view of the internal structure of the second sound insulation ring of the present invention;

[0024] Figure 3 It is a schematic diagram of the steps of unfolding the first sound insulation ring of the present invention;

[0025] Figure 4 It is a cross-sectional view of the internal structure of the fixing frame of the present invention;

[0026] Figure 5For the present invention Figure 4 A partial enlarged view of the middle A area;

[0027] Figure 6 It is a cross-sectional view of the internal structure of the fixing frame of the present invention.

[0028] In the figure: 1. base; 2. sound insulation board; 3. transmission block; 4. first sound insulation ring; 5. connecting block; 6. transmission frame; 7. threaded rod; 8. sound insulation cotton; 9. pad; 10. extension plate; 11. first bevel gear; 12. second bevel gear; 13. movable hole; 14. sliding block; 15. first telescopic device; 16. second telescopic device; 17. processing tool; 18. fixed frame; 19. second sound insulation ring. DETAILED DESCRIPTION

[0029] The present invention is further described below in conjunction with specific embodiments.

[0030] Example 1

[0031] like Figure 1 As shown, a biological space capsule rotating processing device of this embodiment includes a base 1, a pad 9 is arranged in the middle of the upper end of the base 1, and the biological space capsule processing material is placed on the upper end of the pad 9 during processing. After placement, the pad 9 and the biological space capsule processing material on the upper end can be rotated to rotate and adjust the direction of the biological space capsule processing material so that the biological space capsule processing material can contact the processing tool 17 surrounding the upper end, and be processed step by step and independently;

[0032] Among them, five machining tools 17 are arranged on one half of the circle outside the pad 9, and two pairs of machining tools 17 are arranged on the other half of the circle outside the pad 9 in a mirror image, such as Figure 2 As shown, the biological space capsule processing material placed on the upper end of the pad 9 can be synchronously processed step by step through the surrounding processing tool 17, and the pad 9 drives the biological space capsule processing material on the upper end and rotates to adjust the angle. After the angle is adjusted, further processing can be performed to improve processing efficiency;

[0033] In addition, if Figure 2 and Figure 3 As shown, a first sound insulation ring 4 is arranged between a pair of machining tools 17 at the other half circle of the outside of the pad 9, a second sound insulation ring 19 is arranged around the half circle position of the upper end of the base 1, and an extension piece 10 is arranged between the two first sound insulation rings 4 facing the inner wall of the second sound insulation ring 19 respectively, and the upper end of the pad 9 can be surrounded by the second sound insulation ring 19, a pair of extension pieces 10 and a pair of first sound insulation rings 4 to surround and avoid the transmission of noise, and wrap the noise around the pad 9;

[0034] To improve noise isolation, Figure 1 and Figure 2As shown, a sound insulation board 2 is arranged at the upper end of the second sound insulation ring 19, and the sound insulation board 2 and the second sound insulation ring 19 are an integrated structure, and the sound insulation board 2 can be wrapped around the first sound insulation ring 4 which is distributed in a mirror image at the lower end, and the first sound insulation ring 4 can assist the second sound insulation ring 19 and the first sound insulation ring 4 to wrap the pad 9;

[0035] In order to facilitate the removal of the biological space capsule from the upper end of the pad 9, as Figure 2 , Figure 3 and Figure 4 As shown, a first bevel gear 11 is provided at the lower end of the mirror-distributed first sound insulation ring 4, and the upper end of the first bevel gear 11 is welded and fixed to the first sound insulation ring 4, a second bevel gear 12 is provided on one side of the lower end of the outer portion of the first bevel gear 11, and the outer portion of the second bevel gear 12 is meshed and connected with the outer portion of the first bevel gear 11, and when the first sound insulation ring 4 is manually opened, a pair of connected processing tools 17 can be supported to rotate with the first bevel gear 11 as the center, and while rotating, the first bevel gear 11 drives the second bevel gear 12 meshed and connected on one side to rotate;

[0036] The second bevel gear 12 is provided with a movable hole 13 extending transversely therethrough. Figure 4 and Figure 5 As shown, a threaded rod 7 is provided inside the movable hole 13, and the outside of the threaded rod 7 cooperates with the internal thread of the second bevel gear 12. After the second bevel gear 12 is driven by the first bevel gear 11, it is restricted by the threaded rod 7 so that the second bevel gear 12 moves laterally along the second bevel gear 12;

[0037] In addition, a fixing frame 18 is provided at the lower end of the outside of the threaded rod 7, and the two ends of the threaded rod 7 are welded and fixed to the inner wall of the fixing frame 18, a transmission frame 6 is provided between the outside of the second bevel gear 12 and the outside of the first bevel gear 11, and the outside of the second bevel gear 12 and the outside of the second bevel gear 12 are both rotatably connected to the inside of the transmission frame 6, the first bevel gear 11 and the second bevel gear 12 can be connected and supported by the transmission frame 6, and the transmission of the first bevel gear 11 and the second bevel gear 12 can be realized through the connection of the transmission frame 6, the two sides of the transmission frame 6 are slidably connected to the two sides of the inside of the fixing frame 18 through the sliding block 14, and the sliding of the transmission frame 6 in the fixing frame 18 can facilitate the support and transmission of the upper end processing tool 17;

[0038] In order to improve the stability of the support of the two pairs of machining tools 17 set in half circle mirror image, as shown in FIG. Figure 1 and Figure 2 As shown, the lower end of the fixing frame 18 is fixed by welding to the upper end of the base 1;

[0039] The upper end of the processing tool 17 is provided with a second telescopic device 16, and a first telescopic device 15 is provided on one side outside the second telescopic device 16. The first telescopic device 15 can be extended and retracted laterally and push the second telescopic device 16, and the second telescopic device 16 can be extended and retracted and push the processing tool 17 at the lower end. By extending and retracting the processing tool 17, the biological space capsule processing material on the upper end of the pad 9 can be processed independently.

[0040] In addition, if Figure 2 , Figure 3 and Figure 4 As shown, a transmission block 3 is provided at the lower end of the first telescopic device 15, and the transmission block 3 is welded and fixed to the corresponding first sound insulation ring 4 and second sound insulation ring 19. The rotation of the first sound insulation ring 4 can drive the connected processing tool 17 to rotate and move laterally. On the other hand, the support of the second sound insulation ring 19 can support the connected processing tool 17:

[0041] Example 2

[0042] To further avoid the transmission of noise, such as Figure 1 , Figure 2 and Figure 3 As shown, the outer wall of the second sound insulation ring 19 is surrounded by sound insulation cotton 8, and the outer wall of the first sound insulation ring 4 is surrounded by sound insulation cotton 8, and the sound insulation cotton 8 is respectively fixedly connected to the second sound insulation ring 19 and the first sound insulation ring 4 by bolts, and the fixed sound insulation cotton 8 can further absorb the noise;

[0043] Example 3

[0044] In order to improve the stability of holding the first sound insulation ring 4 and driving the processing tool 17 to rotate, a connecting block 5 is laterally arranged at the lower end of the first sound insulation ring 4, and the two ends of the connecting block 5 are respectively welded and fixed to the outer wall of the transmission block 3 corresponding to the lower end of the first sound insulation ring 4. The connection of the connecting block 5 to the transmission block 3 can further improve the supporting capacity and transmission capacity.

[0045] A method for rotating a biological space capsule processing device comprises the following steps:

[0046] Step 1: Place the biological space capsule processing material on the upper end of the pad 9. After placement, the clamping structures on both sides of the pad 9 are retracted to fix the biological space capsule processing material;

[0047] Step 2: manually push the first sound insulation ring 4. The rotation of the first sound insulation ring 4 can drive the first telescopic device 15, the second telescopic device 16 and the processing tool 17 to rotate. The first sound insulation ring 4 rotates at the upper end of the transmission frame 6 with the first bevel gear 11 as the center. The meshing connection between the first bevel gear 11 and the second bevel gear 12 can make the first bevel gear 11 drive the second bevel gear 12 to rotate.

[0048] Step 3: The rotation of the second bevel gear 12 generates relative motion with the threaded rod 7 passing through the movable hole 13. After the second bevel gear 12 rotates outside the threaded rod 7, it is restricted by the fixed frame 18 on the transmission frame 6, so that the transmission frame 6 can be transformed from rotational motion to lateral linear motion.

[0049] Step 4: After the two first sound insulation rings 4 rotate and move relative to each other, one ends of the two first sound insulation rings 4 are fitted together, and while the two first sound insulation rings 4 rotate and move relative to each other, the extension piece 10 at the other end is driven to move toward the second sound insulation ring 19, and the second sound insulation ring 19 and the extension piece 10 are fitted together by continuous movement;

[0050] Step 5: The second sound insulation ring 19 and a pair of first sound insulation rings 4 surround and wrap the pad 9, and the sound insulation board 2 is fixed to the upper end of the second sound insulation ring 19 and fully wraps the pad 9.

[0051] Working principle: When using the processing device and processing the biological space capsule raw materials, the material is placed at the center position of the circle at the upper end of the pad. The direction and angle of the material can be adjusted by rotating the pad. The first sound insulation ring is pulled, so that the first sound insulation ring drives the connected processing tool to rotate, so that the first sound insulation ring rotates with the first bevel gear as the center under the support of the transmission block at the lower end. The rotation of the first bevel gear can generate relative motion with the outer wall of the second bevel gear. The rotation of the first bevel gear can drive the rotation of the second bevel gear through the meshing connection. The rotation of the second bevel gear can generate relative motion with the outer wall of the threaded rod. The restriction of the fixed frame on the transmission frame can make the second bevel gear move laterally. The lateral movement of the second bevel gear can adjust the position of the first sound insulation ring, so that the first sound insulation ring can move laterally relative to each other while rotating, wrapping and fitting one side of the upper end of the pad. The rotation of the first sound insulation ring can drive one end of the extension piece to fit the inner wall of the second sound insulation ring, so as to wrap the position of the pad. After taking out the processed material from the upper end of the pad, the first sound insulation ring is pulled to rotate. After the transmission of the above-mentioned first bevel gear, second bevel gear and threaded rod, one side of the upper end of the pad is unfolded, which is convenient for taking out the raw materials of the biological space capsule.

[0052] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0053] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. A biological space capsule rotary processing device, comprising a base (1), a pad (9) is arranged in the middle of the upper end of the base (1), and five processing tools (17) are arranged on one-half of the circle outside the pad (9), characterized in that: Two pairs of machining tools (17) are arranged on the other half-circle mirror image of the outside of the pad (9); a first sound insulation ring (4) is arranged between the pair of machining tools (17); a first bevel gear (11) is welded to the lower end of the first sound insulation ring (4); a second bevel gear (12) is meshedly arranged on one side of the lower end of the outside of the first bevel gear (11); and a movable hole (13) is arranged transversely through the inside of the second bevel gear (12).

2. A biological space capsule rotating processing device according to claim 1, characterized in that: A threaded rod (7) threadedly matched with each other is provided inside the movable hole (13), a fixing frame (18) welded and fixed to the base (1) is provided at the lower end of the threaded rod (7), and both ends of the threaded rod (7) are welded and fixed to the inner wall of the fixing frame (18).

3. The biological space capsule rotating processing device according to claim 1, characterized in that: A transmission frame (6) is arranged between the outside of the second bevel gear (12) and the outside of the first bevel gear (11), and the outside of the second bevel gear (12) and the outside of the first bevel gear (11) are both rotatably connected to the inside of the transmission frame (6).

4. The biological space capsule rotating processing device according to claim 3 is characterized in that: The two sides of the transmission frame (6) are slidably connected to the two sides inside the fixed frame (18) via sliding blocks (14).

5. The biological space capsule rotating processing device according to claim 2, characterized in that: A second sound insulation ring (19) is arranged around a half-circle position on the upper end of the base (1).

6. The biological space capsule rotating processing device according to claim 5, characterized in that: An extension piece (10) is arranged between the inner walls of the two first sound insulation rings (4) facing the second sound insulation ring (19).

7. The biological space capsule rotating processing device according to claim 6, characterized in that: A sound insulation board (2) is arranged at the upper end of the second sound insulation ring (19), and the sound insulation board (2) and the second sound insulation ring (19) are an integral structure.

8. The biological space capsule rotating processing device according to claim 6, characterized in that: The outer walls of the second sound insulation ring (19), the first sound insulation ring (4) and the extension piece (10) are all surrounded by sound insulation cotton (8).

9. The biological space capsule rotating processing device according to claim 8, characterized in that: The sound insulation cotton (8) is respectively fixedly connected to the second sound insulation ring (19), the first sound insulation ring (4) and the extension piece (10) by means of bolts.

10. A biological space capsule rotation processing method, implemented based on the biological space capsule rotation processing device according to any one of claims 1 to 9, characterized in that: The steps include: Step 1: Place the bio-space capsule processing materials on the upper end of the tray (9); Step 2: manually push the first sound insulation ring (4), so that the first sound insulation ring (4) rotates on the upper end of the transmission frame (6) with the first bevel gear (11) as the center, and the first bevel gear (11) drives the second bevel gear (12) to rotate; Step 3: The rotation of the second bevel gear (12) and the threaded rod (7) passing through the movable hole (13) generate relative motion, and the transmission frame (6) is restricted by the fixed frame (18), so that the transmission frame (6) is converted from rotational motion to lateral linear motion; Step 4: one end of the two first sound insulation rings (4) fit together, and while moving relative to each other, the extension piece (10) at the other end is driven to move toward the second sound insulation ring (19), so that the second sound insulation ring (19) and the extension piece (10) fit together; Step 5: The second sound insulation ring (19) and a pair of first sound insulation rings (4) surround and wrap the pad (9).

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