A ceramic roller blank processing device

Abstract

The present application provides a ceramic roller blank processing device, which relates to the technical field of ceramic roller processing, and includes an extrusion mechanism; a discharge port is provided at one end of the extrusion mechanism, a receiving platform for receiving blanks is fixedly connected at the discharge port, a sliding frame is slidably connected to the receiving platform, a cutting knife for cutting blanks is slidably connected to the sliding frame, and a receiving turntable is rotatably connected to the receiving turntable at one end away from the discharge port, a receiving groove is provided on the receiving turntable, an abutment block is slidably connected to the receiving turntable, a reinforcing rod is fixedly connected to the abutment block, the reinforcing rod can abut against the sliding frame, and drive the sliding frame to move synchronously. The present application can make the cutting device move synchronously with the ceramic roller blank, reduce the probability of incomplete cutting plane when cutting the ceramic roller, and at the same time can migrate the cut ceramic roller blanks, reducing the labor intensity of the staff.

Description

Technical Field

[0001] The present application relates to the technical field of ceramic roller processing, and in particular to a ceramic roller blank processing device. Background Art

[0002] Ceramic rollers are essential key components of modern high-temperature roller kilns of all types. They play the role of carrying transmission products in high-temperature manufacturing, can withstand strong impacts and vibrations, and also have good corrosion resistance, are not easily corroded by chemical substances, and can extend the service life of the equipment. In the production process of existing ceramic rollers, ceramic raw materials are mostly mixed and then poured into an extruder for extrusion molding, and then the ceramic rollers extruded by the extruder are cut and cut, and then put into a dryer for preliminary drying and molding, and then the dried ceramic rollers are put into a firing furnace for firing to obtain ceramic roller tube products.

[0003] Referring to the Chinese patent document with announcement number CN110666948B and titled "Production System for Ceramic Rollers", the patent sets up a transmission device, uses the first transmission component of the transmission device to transfer the ceramic roller in the extruder to the production system, and uses the second transmission component to drive the ceramic roller through the hole expansion and mud adding component of the processing device in sequence to expand and mud the end of the ceramic roller.

[0004] According to the above technical scheme, when processing the ceramic roller blank, the extruded ceramic roller blank needs to be cut. During the cutting, since the ceramic roller blank is in a moving state, the cutting plane needs to be cut again to keep the cutting plane flat. At the same time, after the cutting of the ceramic roller blank is completed, the staff is often required to move the ceramic roller blank to reduce the influence of the cut ceramic roller blank on the newly extruded ceramic roller blank. Summary of the invention

[0005] In view of this, the present application provides a ceramic roller rod blank processing device, which aims to solve the problem of uneven cutting surface when cutting the extruded ceramic roller rod blank.

[0006] A ceramic roller blank processing device provided in the present application adopts the following technical scheme, which is an extrusion mechanism for extruding ceramic roller blanks; a discharge port is provided at one end of the extrusion mechanism, a receiving platform for contacting the blank is fixedly connected to the discharge port, a sliding frame is slidably connected to the receiving platform, a cutting knife for cutting the blank is slidably connected to the sliding frame, an end of the receiving platform away from the discharge port is rotatably connected to a receiving turntable, a plurality of receiving grooves for receiving the blank are provided on the receiving turntable, an abutment block for abutting one end of the blank is slidably connected to the receiving turntable, a reinforcing rod is fixedly connected to the abutment block, and the reinforcing rod can abut against the sliding frame and drive the sliding frame to move synchronously.

[0007] By synchronously moving the cutting mechanism and the ceramic roller blank, the cutting force of the cutting knife can be evenly distributed on the ceramic roller blank during cutting, reducing the stress concentration of the cutting knife at the moment of cutting. At the same time, due to the synchronization with the moving speed of the ceramic roller blank, the cutting process becomes smoother, avoiding excessive local stress caused by rapid impact and reducing the plastic deformation of the ceramic roller blank at the cutting point.

[0008] Optionally, a reinforcing block is fixedly connected to the reinforcing rod, and a connecting groove is provided on the sliding frame. After the reinforcing block is embedded in the connecting groove, it can drive the sliding frame to move synchronously.

[0009] Optionally, a cutting cylinder is fixedly connected to the sliding frame, an output shaft of the cutting cylinder is fixedly connected to the cutting knife, and the cutting cylinder is used to drive the cutting knife to move downward to cut the ceramic roller rod blank.

[0010] Optionally, one end of the receiving turntable away from the receiving platform is fixedly connected to a rotating motor, a first gear is fixedly connected to the output shaft of the rotating motor, a second gear is fixedly connected to the receiving turntable, the first gear can engage with the second gear and drive the receiving platform to rotate.

[0011] The receiving turntable is driven by a rotating motor to switch between multiple stations, which reduces the labor intensity of the staff. At the same time, the receiving turntable can be rotated left and right, and the ceramic roller blank can be moved out of the receiving tank, reducing the probability of downtime due to storage problems.

[0012] Optionally, the receiving platform and the receiving turntable are both provided with air blowing ports for reducing the adhesion between the ceramic roller blank and the receiving platform and the receiving turntable.

[0013] Optionally, an inflation tube is fixedly connected to the receiving platform, and the inflation tube is connected to the interior of the receiving platform. An air baffle plate is slidably connected to the receiving turntable, and a connecting port that can be connected to the inflation tube is opened on the air baffle plate. The connecting port is used to connect to the interior of the receiving turntable and ventilate to an air port provided on the receiving turntable. A switching spring is fixedly connected to the air baffle plate, and one end of the switching spring is fixedly connected to the interior of the receiving turntable. A switching block is fixedly connected to the receiving platform, and a switching groove is opened on the receiving turntable, and the switching block is embedded in the switching groove.

[0014] Blowing air into the receiving groove helps to quickly cool the ceramic roller blank and avoid cracks and deformation caused by thermal stress. At the same time, blowing air can reduce the probability of the ceramic roller blank sticking due to humidity or other reasons after direct contact with the receiving table and the receiving turntable.

[0015] Optionally, a sliding spring is fixedly connected to the sliding frame, one end of the sliding spring is fixedly connected to the receiving platform, and the sliding spring is used to drive the sliding frame to reset.

[0016] Optionally, a return spring is fixedly connected to the abutment block, one end of the return spring is fixedly connected to the receiving turntable, and the return spring is used to pull the abutment block to reset.

[0017] By setting up multiple workstations on the receiving turntable to store ceramic roller rod blanks, manual operation can be reduced and production efficiency can be improved. At the same time, setting up multiple workstations on the receiving turntable can ensure the continuity of the cutting process and reduce the probability of production interruption due to storage problems. At the same time, automated receiving and storage reduces the chance of workers directly contacting the cut ceramic roller rod blanks and reduces the risk of work-related injuries.

[0018] In summary, compared with the prior art, the present application includes at least one of the following beneficial technical effects:

[0019] 1. The cutting mechanism and the ceramic roller blank move synchronously, so that the cutting force of the cutting knife can be evenly distributed on the ceramic roller blank during cutting, reducing the stress concentration of the cutting knife at the moment of cutting. At the same time, due to the synchronization with the moving speed of the ceramic roller blank, the cutting process becomes smoother, avoiding excessive local stress caused by rapid impact, and reducing the plastic deformation of the ceramic roller blank at the cutting point.

[0020] 2. The rotating motor drives the receiving turntable to switch between multiple stations, which reduces the labor intensity of the staff. At the same time, the receiving turntable can be rotated left and right, and the ceramic roller blank can be moved out of the receiving tank, reducing the probability of downtime due to storage problems.

[0021] 3. Blowing air into the receiving groove helps to quickly cool the ceramic roller blank and avoid cracks and deformation caused by thermal stress. At the same time, blowing air can reduce the probability of the ceramic roller blank sticking to the receiving table and the receiving turntable due to humidity or other reasons after direct contact.

[0022] 4. By setting up multiple stations on the receiving turntable to store ceramic roller blanks, manual operation can be reduced and production efficiency can be improved. At the same time, setting up multiple stations on the receiving turntable can ensure the continuous cutting process and reduce the probability of production interruption due to storage problems. At the same time, automated receiving and storage reduces the chance of workers directly contacting the cut ceramic roller blanks and reduces the risk of work-related injuries. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic structural diagram of a ceramic roller blank processing device according to the present embodiment;

[0024] Figure 2 This is a schematic diagram of the structure of the rotating motor and the first gear of this embodiment;

[0025] Figure 3 It is a structural schematic diagram of the receiving platform and the receiving turntable of this embodiment;

[0026] Figure 4 For this embodiment Figure 3 A partial enlarged view of the middle area A;

[0027] Figure 5 For this embodiment Figure 3 A partial enlarged view of the middle area B;

[0028] Figure 6 It is a schematic diagram of the structure of the inflation tube and the air baffle plate of this embodiment.

[0029] Explanation of the reference numerals: 1. Extrusion mechanism; 11. Discharge port; 2. Receiving platform; 21. Sliding frame; 22. Cutting knife; 23. Receiving turntable; 24. Receiving groove; 25. Abutment block; 26. Reinforcing rod; 27. Reinforcing block; 28. Connecting groove; 3. Cutting cylinder; 4. Rotating motor; 41. First gear; 42. Second gear; 5. Blowing port; 51. Inflation tube; 52. Air baffle; 53. Connecting port; 54. Switching spring; 55. Switching block; 56. Switching groove; 6. Sliding spring; 7. Reset spring. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the following will be combined with the embodiments of the present application. Figure 1-Figure 6, the technical scheme of the embodiment of the present application is clearly and completely described. Obviously, the described embodiment is a part of the embodiment of the present application, not all of the embodiments. Based on the described embodiment of the present application, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of this application.

[0031] like Figure 1 As shown, this embodiment provides a ceramic roller blank processing device, including an extrusion mechanism 1, a cutting mechanism, a receiving mechanism, a rotating mechanism and a blowing mechanism. The extrusion mechanism 1 is provided with a discharge port 11, and the ceramic roller blank is extruded from the discharge port 11. The cutting mechanism moves along with the movement of the ceramic roller blank, and cuts off the ceramic roller blank that reaches a certain length. The receiving mechanism is used to receive the ceramic roller blank extruded from the discharge port 11. The rotating mechanism is used to drive the receiving mechanism to rotate, and collect the ceramic roller blank after cutting. The blowing mechanism is arranged in the receiving mechanism, and is used to reduce the adhesion between the ceramic roller blank and the receiving mechanism.

[0032] like Figure 1 , Figure 2 and Figure 4 As shown, a receiving platform 2 for receiving ceramic roller blanks is fixedly connected at the discharge port 11, and a cutting mechanism is located on the receiving platform 2. The cutting mechanism includes a sliding frame 21, a cutting cylinder 3, a cutting knife 22 and a reset spring 7. The sliding frame 21 is slidably connected to the receiving platform 2, the cutting cylinder 3 is fixedly connected to the sliding frame 21, the cutting knife 22 is fixedly connected to the output shaft of the cutting cylinder 3, one end of the reset spring 7 is fixedly connected to the sliding frame 21, and the end of the reset spring 7 away from the sliding frame 21 is fixedly connected to the receiving platform 2, and the reset spring 7 is used to drive the receiving platform 2 to reset. When the ceramic roller blank is extruded to a certain extent, the sliding frame 21 moves synchronously with the ceramic roller blank, and drives the cutting cylinder 3 and the cutting knife 22 to move synchronously during the movement. When the ceramic roller blank is extruded to a certain extent, the cutting cylinder 3 is started, so that the output shaft of the cutting cylinder 3 drives the cutting knife 22 to move downward, so that the cutting knife 22 cuts the ceramic roller blank, and after cutting, the reset spring 7 drives the sliding frame 21 to reset.

[0033] like Figure 1 , Figure 3 and Figure 5As shown, the receiving mechanism includes a receiving turntable 23, an abutment block 25, a reinforcing rod 26, a reinforcing block 27 and a sliding spring 6. The receiving turntable 23 is rotatably connected to the receiving table 2 and is arranged at the end of the receiving table 2 away from the discharge port 11. The receiving table 2 is provided with a receiving groove 24, and the receiving groove 24 is used to receive the ceramic roller rod blank moved from the receiving table 2 to the receiving turntable 23. The abutment block 25 is slidably connected to the receiving turntable 23 and is arranged at the end away from the discharge port 11. The reinforcing rod 26 is fixedly connected to the abutment block 25, and the reinforcing rod 26 is slidably connected to the receiving turntable 23. The reinforcing block 27 is fixedly connected to the end of the reinforcing rod 26 away from the abutment block 25. The sliding frame 21 is provided with a connecting groove 28 that enables the reinforcing block 27 to be embedded in the sliding frame 21. The sliding spring 6 is fixedly connected to the abutment block 25, and the end of the sliding spring 6 away from the abutment block 25 is fixedly connected to the receiving turntable 23.

[0034] When the ceramic roller blank is extruded to a certain extent, it moves to the receiving groove 24 on the receiving turntable 23 and continues to move in the receiving groove 24. When the ceramic roller blank moves to the abutment block 25, it pushes the abutment block 25 to move. At this time, the reinforcing block 27 is located in the connecting groove 28 on the sliding frame 21. The movement of the abutment block 25 drives the reinforcing rod 26 to move. The movement of the reinforcing rod 26 drives the reinforcing block 27 and the sliding frame 21 to move, so that the sliding frame 21 and the ceramic roller blank move synchronously. When the ceramic roller blank is extended to the required length, the cutting cylinder 3 is started, so that the cutting cylinder 3 drives the cutting knife 22 to cut the ceramic roller blank. After cutting, the receiving turntable 23 is rotated to move the reinforcing block 27 out of the connecting groove 28. The reset spring 7 drives the sliding frame 21 to reset, and moves the ceramic roller blank located in the receiving turntable 23 out during the rotation of the receiving turntable 23. When the ceramic roller blank moves out of the receiving groove 24, the sliding spring 6 drives the abutment block 25 to reset.

[0035] like Figure 2 As shown, the rotating mechanism includes a rotating motor 4, a first gear 41 and a second gear 42. The rotating motor 4 is fixedly connected to the receiving platform 2. The first gear 41 is fixedly connected to the output shaft of the rotating motor 4. The second gear 42 is slidably sleeved on the receiving turntable 23. The second gear 42 and the receiving turntable 23 can drive the receiving turntable 23 and the second gear 42 to rotate by means of a slot, and the first gear 41 can be engaged with the second gear 42. When the receiving turntable 23 needs to be rotated, the rotating motor 4 is started to rotate the output shaft of the rotating motor 4. The output shaft of the rotating motor 4 rotates to drive the first gear 41 to rotate. The first gear 41 rotates to drive the second gear 42 to rotate. The second gear 42 rotates to drive the receiving turntable 23 to rotate, so that the receiving slot 24 is switched.

[0036] like Figure 6As shown, the blowing mechanism includes an inflation tube 51, an air baffle plate 52, a switching spring 54 and a switching block 55. An air port 5 is provided on the receiving platform 2 and the receiving turntable 23 to reduce the adhesion of the ceramic roller rod blank to the receiving platform 2 and the receiving turntable 23. The inflation tube 51 is fixedly connected to the receiving platform 2, and the inflation tube 51 can be connected to the air port 5 to ventilate the air into the air port 5. The air baffle plate 52 is slidably connected to the inside of the receiving turntable 23. The air baffle plate 52 is provided with a connecting port 53 that can be connected to the inflation tube 51. The connecting port 53 is used to connect to the inside of the receiving turntable 23. The switching spring 54 is fixedly connected to the air baffle plate 52, and One end of the switching spring 54 away from the air baffle plate 52 is fixedly connected to the inside of the receiving turntable 23, and the switching stopper 55 is fixedly connected to the receiving platform 2. A switching groove 56 is opened on the receiving turntable 23. When the receiving turntable 23 rotates, the switching groove 56 is driven to rotate. The switching stopper 55 pushes the receiving turntable 23 to move toward the side away from the discharge port 11. After the movement, the inflation tube 51 is disconnected from the connecting port 53. After the rotation, the receiving turntable 23 moves toward the side of the discharge port 11 under the action of the spring, so that the inflation tube 51 is connected with the adjacent connecting port 53, and the blowing port 5 on the adjacent receiving groove 24 is blown.

[0037] When the present application is in use, the ceramic roller blank is extruded from the discharge port 11 and moved toward the receiving turntable 23 under the support of the receiving platform 2. When the ceramic roller blank is extruded to a certain extent, it moves to the receiving groove 24 on the receiving turntable 23 and continues to move in the receiving groove 24. When the ceramic roller blank moves to the abutment block 25, the abutment block 25 is pushed to move. At this time, the reinforcement block 27 is located in the connecting groove 28 on the sliding frame 21. The movement of the abutment block 25 drives the reinforcement rod 26 to move. The movement of the reinforcement rod 26 drives the reinforcement block 27 and the sliding frame 21 to move, so that the sliding frame 21 and the ceramic roller blank move synchronously. When the ceramic roller blank is extended to the required length, the cutting cylinder 3 is started, so that the cutting cylinder 3 drives the cutting knife 22 to cut the ceramic roller blank.

[0038] After the ceramic roller blank is cut, the rotating motor 4 is started, so that the rotating motor 4 drives the first gear 41 to rotate, and the rotation of the first gear 41 drives the second gear 42 to rotate, and drives the receiving turntable 23 to rotate. When the receiving turntable 23 rotates, it drives the switching groove 56 to rotate, and the switching block 55 pushes the receiving turntable 23 to move toward the side away from the discharge port 11. After the movement, the inflation tube 51 is disconnected from the connecting port 53, and after the rotation, the receiving turntable 23 moves toward the side of the discharge port 11 under the action of the spring, so that the inflation tube 51 is connected with the adjacent connecting port 53, and the blowing port 5 on the adjacent receiving groove 24 is blown.

[0039] After cutting, the receiving turntable 23 is rotated to move the reinforcing block 27 out of the connecting groove 28, and the reset spring 7 drives the sliding frame 21 to reset, and moves the ceramic roller rod blank located in the receiving turntable 23 out during the rotation of the receiving turntable 23. When the ceramic roller rod blank moves out of the receiving groove 24, the sliding spring 6 drives the abutment block 25 to reset.

[0040] In this embodiment, the ceramic roller blank drives the sliding frame 21 to move synchronously, so that the cutting force of the cutting knife 22 can be evenly distributed on the ceramic roller blank, reducing stress concentration at the moment of cutting, thereby reducing the risk of deformation. At the same time, continuous movement makes the cutting process smoother, avoiding excessive local stress caused by rapid impact, and reducing the plastic deformation of the ceramic roller blank at the cutting point.

[0041] In this embodiment, by setting up multiple workstations on the receiving turntable 23 to store ceramic roller rod blanks, manual operation can be reduced and production efficiency can be improved. At the same time, setting up multiple workstations on the receiving turntable 23 can ensure the continuity of the cutting process and reduce the probability of production interruption due to storage problems. At the same time, automated receiving and storage reduces the opportunity for workers to directly contact the cut ceramic roller rod blanks, thereby reducing the risk of work-related injuries.

[0042] In this embodiment, air blowing during extrusion of the ceramic roller blank helps to quickly cool the ceramic roller blank, avoiding cracks and deformation caused by thermal stress. At the same time, air blowing can reduce the probability of adhesion of the ceramic roller blank due to humidity or other reasons.

[0043] The implementation principle of a ceramic roller blank processing device in the embodiment of the present application is as follows: the ceramic roller blank is extruded from the discharge port 11, and is moved toward the receiving turntable 23 under the support of the receiving platform 2; when the ceramic roller blank is extruded to a certain extent, it moves to the receiving groove 24 on the receiving turntable 23, and continues to move in the receiving groove 24; when the ceramic roller blank moves to the abutment block 25, the abutment block 25 is pushed to move, and at this time, the reinforcement block 27 is located in the connecting groove 28 on the sliding frame 21; the movement of the abutment block 25 drives the reinforcement rod 26 to move; the movement of the reinforcement rod 26 drives the reinforcement block 27 and the sliding frame 21 to move, so that the sliding frame 21 and the ceramic roller blank move synchronously; when the ceramic roller blank is extended to the required length, the cutting cylinder 3 is started, so that the cutting cylinder 3 drives the cutting knife 22 to cut the ceramic roller blank.

[0044] After the ceramic roller blank is cut, the rotating motor 4 is started, so that the rotating motor 4 drives the first gear 41 to rotate, and the rotation of the first gear 41 drives the second gear 42 to rotate, and drives the receiving turntable 23 to rotate. When the receiving turntable 23 rotates, it drives the switching groove 56 to rotate, and the switching block 55 pushes the receiving turntable 23 to move toward the side away from the discharge port 11. After the movement, the inflation tube 51 is disconnected from the connecting port 53, and after the rotation, the receiving turntable 23 moves toward the side of the discharge port 11 under the action of the spring, so that the inflation tube 51 is connected with the adjacent connecting port 53, and the blowing port 5 on the adjacent receiving groove 24 is blown.

[0045] After cutting, the receiving turntable 23 is rotated to move the reinforcing block 27 out of the connecting groove 28, and the reset spring 7 drives the sliding frame 21 to reset, and moves the ceramic roller rod blank located in the receiving turntable 23 out during the rotation of the receiving turntable 23. When the ceramic roller rod blank moves out of the receiving groove 24, the sliding spring 6 drives the abutment block 25 to reset.

[0046] In addition, it should be noted that in the description of this application, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0047] The above is a preferred embodiment of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles described in the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A ceramic roller blank processing device, comprising an extrusion mechanism (1) for extruding a ceramic roller blank, characterized in that: One end of the extrusion mechanism (1) is provided with a discharge port (11), a receiving platform (2) for receiving a blank blank is fixedly connected to the discharge port (11), a sliding frame (21) is slidably connected to the receiving platform (2), a cutting knife (22) for cutting the blank blank is slidably connected to the sliding frame (21), an end of the receiving platform (2) away from the discharge port (11) is rotatably connected to a receiving turntable (23), a plurality of receiving grooves (24) for receiving the blank blank are provided on the receiving turntable (23), an abutment block (25) for abutting one end of the blank blank is slidably connected to the receiving turntable (23), and the abutment block (25) is arranged inside the receiving groove (24), and a reinforcing rod (26) is fixedly connected to the abutment block (25), and the reinforcing rod (26) can abut against the sliding frame (21) and drive the sliding frame (21) to move synchronously; A reinforcing block (27) is fixedly connected to the reinforcing rod (26), and a connecting groove (28) is provided on the sliding frame (21). After the reinforcing block (27) is engaged in the connecting groove (28), it can drive the sliding frame (21) to move synchronously; A sliding spring (6) is fixedly connected to the sliding frame (21), one end of the sliding spring (6) is fixedly connected to the receiving platform (2), and the sliding spring (6) is used to drive the sliding frame (21) to reset; A return spring (7) is fixedly connected to the abutment block (25), one end of the return spring (7) is fixedly connected to the receiving turntable (23), and the return spring (7) is used to push the abutment block (25) to return to its original position.

2. A ceramic roller blank processing device according to claim 1, characterized in that: A cutting cylinder (3) is fixedly connected to the sliding frame (21), an output shaft of the cutting cylinder (3) is fixedly connected to the cutting knife (22), and the cutting cylinder (3) is used to drive the cutting knife (22) to move downward to cut the ceramic roller rod blank.

3. The ceramic roller blank processing device according to claim 1, characterized in that: One end of the receiving turntable (23) away from the receiving platform (2) is fixedly connected to a rotating motor (4); a first gear (41) is fixedly connected to the output shaft of the rotating motor (4); a second gear (42) is slidably sleeved on the receiving turntable (23); the second gear (42) and the receiving turntable (23) are connected by means of a slot; the first gear (41) can be engaged with the second gear (42) and drive the receiving platform (2) to rotate.

4. The ceramic roller blank processing device according to claim 1, characterized in that: The receiving platform (2) and the receiving turntable (23) are both provided with air blowing ports (5) for reducing the probability of the ceramic roller blank sticking to the receiving platform (2) and the receiving turntable (23).

5. A ceramic roller blank processing device according to claim 4, characterized in that: An inflation tube (51) is fixedly connected to the receiving platform (2), and the inflation tube (51) is connected to the interior of the receiving platform (2). An air baffle plate (52) is slidably connected to the receiving turntable (23), and a connecting port (53) capable of connecting to the inflation tube (51) is provided on the air baffle plate (52). The connecting port (53) is used to connect to the interior of the receiving turntable (23) and to ventilate to the air port (5) provided on the receiving turntable (23). A switching spring (54) is fixedly connected to the air baffle plate (52), and one end of the switching spring (54) is fixedly connected to the interior of the receiving turntable (23). A switching block (55) is fixedly connected to the receiving platform (2), and a switching groove (56) is provided on the receiving turntable (23), and the switching block (55) is embedded in the switching groove (56).

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