A capping device

Abstract

The present invention provides a capping device, belonging to the technical field of thermostat capping equipment. This capping device includes a frame, on which a sliding seat is slidably connected. A capping claw sleeve is fixed to the bottom of the sliding seat. A main shaft is slidably connected to the sliding seat. An installation seat is fixed below the main shaft. A number of claw teeth are arranged on the installation seat. A first spring is connected between the claw teeth and the installation seat. The claw teeth are located inside the capping claw sleeve and protrude from the capping claw sleeve. The claw teeth have a first inclined surface, and a number of second inclined surfaces are provided on the inner wall of the capping claw sleeve. Each second inclined surface corresponds to a first inclined surface respectively. When the capping claw sleeve moves downward, each second inclined surface can abut against and slide relative to the corresponding first inclined surface. A lower adjusting nut is arranged at the top of the main shaft, and a limiting block for restricting the downward movement of the lower adjusting nut is fixed on the frame. A driving mechanism for driving the sliding seat to move up and down is arranged on the frame. This capping device caps quickly and accurately, and can prevent the thermostat housing from being scratched.

Description

Technical Field

[0001] The present invention belongs to the technical field of thermostat capping equipment and relates to a capping device. Background Art

[0002] During the assembly process of a thermostat, an important process is capping, that is, sealing an aluminum cap to a component, which is similar to the capping of a beer bottle.

[0003] In order to cap the thermostat, various capping mechanisms have been invented. In the prior art, the disadvantages of the capping mechanism are complex structure, slow capping speed, and unstable sealing quality. For example, during the capping process, there is no minimum diameter limit for the capping mechanism, and the thermostat housing is easily scratched, resulting in low working efficiency of the equipment and difficult to guarantee the capping quality. Summary of the Invention

[0004] Aiming at the above problems existing in the prior art, the present invention provides a capping device. The technical problem to be solved by the present invention is: how to achieve rapid capping and prevent the thermostat housing from being scratched.

[0005] The object of the present invention can be achieved by the following technical solutions:

[0006] A capping device, the capping device includes a frame. It is characterized in that a sliding seat is slidably connected to the frame, a capping claw sleeve is fixed to the bottom of the sliding seat, a main shaft is slidably connected to the sliding seat, an installation seat is fixed below the main shaft, a plurality of claw teeth are arranged on the installation seat, a first spring is connected between the claw teeth and the installation seat, the claw teeth are distributed in the circumferential direction of the installation seat, the claw teeth are located inside the capping claw sleeve and protrude from the capping claw sleeve, the claw teeth have a first inclined surface, and a plurality of second inclined surfaces are arranged on the inner wall of the capping claw sleeve, each second inclined surface corresponds to a first inclined surface respectively. When the capping claw sleeve moves downward, each second inclined surface can abut against and slide relative to the corresponding first inclined surface. A lower adjusting nut is arranged at the top of the main shaft, a limiting block for restricting the downward movement of the lower adjusting nut is fixed to the frame, and a driving mechanism for driving the sliding seat to move up and down is arranged on the frame.

[0007] During operation, first, the thermostat assembly is fixed at the bottom of the frame. The cover to be sealed is placed on the sealing opening of the thermostat assembly. Then, driven by the driving mechanism, the sliding seat moves downward along the frame. At this time, the sealing claw sleeve and the main shaft move accordingly. When the lower adjusting nut abuts against the limit block, the main shaft and the claw teeth on the mounting seat stop moving. At this time, the lower end of the claw teeth moves to the position of the cover to be sealed and is distributed around the cover to be sealed. At this time, the driving mechanism drives the sliding seat to continue moving downward, and the sealing claw sleeve moves downward relative to the claw teeth. While moving downward, the second inclined surfaces on the sealing claw sleeve abut against and slide relative to the corresponding first inclined surfaces. Each second inclined surface pushes the corresponding claw teeth to move towards the cover to be sealed. Then, the lower ends of the claw teeth squeeze the cover to be sealed until the cover to be sealed is stably fixed at the sealing opening of the thermostat, and the sealing is completed at this time. This sealing device realizes the radial movement of the claw teeth by the downward movement of the sealing claw sleeve, and the sealing is fast and accurate.

[0008] In addition, during the sealing process, the claw teeth also move towards the mounting seat at the same time. When the claw teeth move to a certain position, it is difficult to move closer to the mounting seat. Therefore, the mounting seat plays a limiting role on the claw teeth. By limiting the claw teeth, the moving distance of the claw teeth can be well controlled, so as to control the grasping pressure and force of the claw teeth on the thermostat housing and prevent the thermostat housing from being cracked.

[0009] In the above-mentioned sealing device, the first inclined surface is located in the lower half of the corresponding claw tooth. The upper half of each claw tooth also has a third inclined surface. The inner wall of the sealing claw sleeve also has several fourth inclined surfaces, and each fourth inclined surface corresponds to a third inclined surface respectively. When the second inclined surfaces abut against and slide relative to the corresponding first inclined surfaces, each fourth inclined surface can abut against and slide relative to the corresponding third inclined surface. In this structure, the first inclined surface and the second inclined surface form the first sliding fit structure for driving the radial movement of the claw teeth, and the third inclined surface and the fourth inclined surface form the second sliding fit structure for driving the radial movement of the claw teeth. The two sliding fit structures work together to improve the stability of the radial movement of the claw teeth and complete the sealing more quickly and accurately.

[0010] In the above-mentioned sealing device, the first inclined surface is parallel to the corresponding second inclined surface, and the third inclined surface is parallel to the corresponding fourth inclined surface.

[0011] In the above-mentioned sealing device, the sealing claw sleeve is cylindrical. The claw teeth are evenly distributed in the circumferential direction of the mounting seat. The mounting seat is provided with several grooves extending along the height direction of the mounting seat. Each claw tooth is distributed in a groove. The left side and the right side of each claw tooth are respectively in contact with the left side and the right side of the corresponding groove. The outer end and the inner end of the first spring are respectively connected to the inner side of the claw tooth and the inner side of the groove.

[0012] The evenly distributed claw teeth make the force on the periphery of the cap to be sealed more uniform. The groove guides the claw teeth, improving the stability of the movement of the claw teeth. This structure can effectively improve the capping quality. When the capping is completed, the first spring is in a compressed state. When the claw cap sleeve moves upward, the compressed first spring can push the claw teeth away from the mounting seat, playing a reset role and enabling the claw teeth to quickly and automatically return to the initial position.

[0013] In the above-mentioned capping device, the bottom of the claw teeth has a pointed end, and the pointed end is located below the claw cap sleeve. In this structure, the pointed end is used to squeeze the cap to be sealed and complete the capping action.

[0014] In the above-mentioned capping device, a second spring is sleeved on the main shaft. The lower end of the second spring is connected to the bottom of the main shaft, and the bottom of the sliding seat can abut against the top of the second spring.

[0015] During the process of the claw cap sleeve moving downward relative to the main shaft, when the bottom of the sliding seat abuts against the top of the second spring, the second spring is in a gradually compressed state. When the capping is completed and the sliding seat moves upward, the second spring generates an upward thrust on the sliding seat. Even without using a driving mechanism, the sliding seat can automatically reset. If a driving mechanism is used, the second spring plays an auxiliary reset role.

[0016] In the above-mentioned capping device, the driving mechanism includes a linear motor, and the output shaft of the linear motor is connected to the top of the sliding seat. In this structure, the linear motor drives its output shaft to move up and down, and the output shaft drives the sliding seat to move up and down.

[0017] As another embodiment, the driving mechanism can also be a cylinder and its fixing parts.

[0018] In the above-mentioned capping device, an upper connecting seat is fixed on the top of the sliding seat, and the upper connecting seat has a receiving cavity for inserting the output shaft of the linear motor. The provision of the receiving cavity on the upper connecting seat makes the connection between the output shaft of the linear motor and the sliding seat more convenient.

[0019] In the above-mentioned capping device, a placement seat is provided at the bottom of the frame. The placement seat has a mounting groove. The top of the main shaft is fixed with an upper adjusting nut, and the upper adjusting nut is located above the lower adjusting nut. The lower adjusting nut is in threaded transmission connection with the main shaft. The temperature controller is placed in the mounting groove of the placement seat, making the operation more convenient. By rotating the upper adjusting nut, the position of the main shaft can be adjusted in the height direction as needed, thereby adjusting the length of the claw teeth protruding from the claw cap sleeve. The upper adjusting nut and the lower adjusting nut can be divided into 60 grids, each grid being 6°. The thread pitch of the main shaft is 1.5 mm, and each adjustment makes the main shaft axially move 0.025 mm, achieving precise adjustment of the main shaft in the height direction.

[0020] In the above-mentioned capping device, a guide rail extending along the height direction of the frame is fixed on the frame, a slider is fixed on the sliding seat, and the slider is slidably connected to the guide rail.

[0021] Compared with the prior art, the advantages of the present invention are as follows:

[0022] 1. The capping device realizes the radial movement of the claw teeth by the downward movement of the capping claw sleeve, and the capping is fast and accurate.

[0023] 2. A first spring is connected between the claw teeth and the mounting seat of the capping device. When the capping claw sleeve moves upward, the compressed first spring can push the claw teeth away from the mounting seat, playing a reset role and enabling the claw teeth to quickly and automatically return to the initial position.

[0024] 3. During the capping process of the capping device, the mounting seat plays a limiting role on the claw teeth, can well control the moving distance of the claw teeth, thereby controlling the grasping pressure and strength of the claw teeth on the thermostat housing, and preventing the thermostat housing from being cracked by grasping. Description of the Drawings

[0025] Figure 1 is a schematic structural diagram of the capping device;

[0026] Figure 2 is a schematic structural diagram of the cooperation between the capping claw sleeve and the claw teeth;

[0027] Figure 3 is a schematic structural diagram of the capping claw sleeve;

[0028] Figure 4 is a sectional view of the capping claw sleeve;

[0029] Figure 5 is a schematic diagram of the claw teeth mounted on the mounting seat;

[0030] Figure 6 is a schematic structural diagram of the claw teeth;

[0031] Figure 7 is a schematic structural diagram of the placing seat;

[0032] Figure 8 is a schematic structural diagram of the upper connecting seat.

[0033] In the figure, 1 is the frame; 2 is the sliding seat; 3 is the sealing claw sleeve; 4 is the main shaft; 5 is the mounting seat; 6 is the claw teeth; 7 is the first spring; 8 is the first inclined surface; 9 is the second inclined surface; 10 is the lower adjusting nut; 11 is the limit block; 12 is the driving mechanism; 13 is the third inclined surface; 14 is the fourth inclined surface; 15 is the groove; 16 is the pointed end; 17 is the second spring; 18 is the linear motor; 19 is the output shaft; 20 is the upper connecting seat; 21 is the accommodating cavity; 22 is the placing seat; 23 is the mounting groove; 24 is the upper adjusting nut; 25 is the guide rail; 26 is the slider; 27 is the thermostat assembly; 28 is the cover to be sealed. Detailed implementation manner

[0034] The following are specific embodiments of the present invention and in combination with the accompanying drawings, the technical solutions of the present invention are further described, but the present invention is not limited to these embodiments.

[0035] As Figure 1-6 shown, this cover sealing device includes a frame 1, a sliding seat 2 is slidably connected to the frame 1, a sealing claw sleeve 3 is fixed to the bottom of the sliding seat 2, a main shaft 4 is slidably connected to the sliding seat 2, a mounting seat 5 is fixed below the main shaft 4, a plurality of claw teeth 6 are arranged on the mounting seat 5, a first spring 7 is connected between the claw teeth 6 and the mounting seat 5, the claw teeth 6 are distributed in the circumferential direction of the mounting seat 5, the claw teeth 6 are located inside the sealing claw sleeve 3 and extend out from the sealing claw sleeve 3, the claw teeth 6 have a first inclined surface 8, and a plurality of second inclined surfaces 9 are provided on the inner wall of the sealing claw sleeve 3, each second inclined surface 9 corresponds to a first inclined surface 8 respectively. When the sealing claw sleeve 3 moves downward, each second inclined surface 9 can abut against and slide relative to the corresponding first inclined surface 8. A lower adjusting nut 10 is arranged at the top of the main shaft 4, a limit block 11 for restricting the downward movement of the lower adjusting nut 10 is fixed on the frame 1, and a driving mechanism 12 for driving the sliding seat 2 to move up and down is arranged on the frame 1.

[0036] As Figure 1 shown, during operation, first, the thermostat assembly 27 is fixed to the bottom of the frame 1, the cover to be sealed 28 is placed on the sealing opening of the thermostat assembly 27, and then under the drive of the driving mechanism 12, the sliding seat 2 moves downward along the frame 1. At this time, the sealing claw sleeve 3 and the main shaft 4 move accordingly. When the lower adjusting nut 10 abuts against the limit block 11, the claw teeth 6 on the main shaft 4 and the mounting seat 5 stop moving. At this time, the lower end of the claw teeth 6 moves to the position of the cover to be sealed 28 and is distributed around the cover to be sealed 28. At this time, the driving mechanism 12 drives the sliding seat 2 to continue to move downward, and the sealing claw sleeve 3 moves downward relative to the claw teeth 6. During the downward movement, each second inclined surface 9 on the sealing claw sleeve 3 abuts against and slides relative to the corresponding first inclined surface 8, and each second inclined surface 9 pushes the corresponding claw teeth 6 to move towards the cover to be sealed 28. Then, the lower ends of each claw teeth 6 squeeze the cover to be sealed 28 until the cover to be sealed 28 is stably fixed at the sealing opening of the thermostat, and at this time, the cover sealing is completed.

[0037] As Figure 4 and 6As shown in the figure, in this embodiment, the first inclined surface 8 is located in the lower half of the corresponding claw tooth 6. The upper half of each claw tooth 6 further has a third inclined surface 13. There are also several fourth inclined surfaces 14 on the inner wall of the sealing claw sleeve 3. Each fourth inclined surface 14 corresponds to a third inclined surface 13 respectively. When each second inclined surface 9 abuts against and relatively slides with the corresponding first inclined surface 8, each fourth inclined surface 14 can abut against and relatively slide with the corresponding third inclined surface 13. In this structure, the first inclined surface 8 and the second inclined surface 9 form a first sliding fit structure for driving the radial movement of the claw tooth 6, and the third inclined surface 13 and the fourth inclined surface 14 form a second sliding fit structure for driving the radial movement of the claw tooth 6. The two sliding fit structures work together to improve the stability of the radial movement of the claw tooth 6 and complete the capping more quickly and accurately.

[0038] Preferably, the first inclined surface 8 is parallel to the corresponding second inclined surface 9, and the third inclined surface 13 is parallel to the corresponding fourth inclined surface 14.

[0039] As Figure 2 、 3 and as shown in Figure 5, in this embodiment, the sealing claw sleeve 3 is cylindrical. The claw teeth 6 are evenly distributed in the circumferential direction of the mounting seat 5. The mounting seat 5 is provided with several grooves 15 extending along the height direction of the mounting seat 5. Each claw tooth 6 is distributed within a groove 15. The left side surface and the right side surface of each claw tooth 6 are respectively in contact with the left side surface and the right side surface of the corresponding groove 15. The outer end part and the inner end part of the first spring 7 are respectively connected to the inner side part of the claw tooth 6 and the inner side surface of the groove 15.

[0040] The evenly distributed claw teeth 6 make the circumferential edge of the to-be-capped 28 receive more uniform force. The grooves 15 play a guiding role for the claw teeth 6 and improve the stability of the movement of the claw teeth 6. This structure can well improve the capping quality. When the capping is completed, the first spring 7 is in a compressed state. When the sealing claw sleeve 3 moves upward, the compressed first spring 7 can push the claw teeth 6 away from the mounting seat 5, playing a reset role and enabling the claw teeth 6 to quickly and automatically return to the initial position.

[0041] As Figure 6 shown, in this embodiment, the bottom of the claw tooth 6 has a pointed end portion 16, and the pointed end portion 16 is located below the sealing claw sleeve 3. In this structure, the pointed end portion 16 is used to squeeze the to-be-capped 28 and complete the capping action.

[0042] As Figure 2 shown, in this embodiment, a second spring 17 is sleeved on the main shaft 4. The lower end portion of the second spring 17 is connected to the bottom of the main shaft 4. The bottom of the sliding seat 2 can abut against the top of the second spring 17.

[0043] During the downward movement of the sealing jaw sleeve 3 relative to the main shaft 4, when the bottom of the slide block 2 abuts against the top of the second spring 17, the second spring 17 is gradually compressed. When the capping is completed and the slide block 2 moves upward, the second spring 17 generates an upward thrust on the slide block 2, enabling the slide block 2 to automatically reset even without using the driving mechanism 12. If the driving mechanism 12 is used, the second spring 17 plays an auxiliary resetting role.

[0044] As Figure 1 shown, in this embodiment, the driving mechanism 12 includes a linear motor 18, and the output shaft 19 of the linear motor 18 is connected to the top of the slide block 2. In this structure, the linear motor 18 drives its output shaft 19 to move up and down, and the output shaft 19 drives the slide block 2 to move up and down.

[0045] As another embodiment, the driving mechanism 12 can also be a cylinder and its fixing parts.

[0046] As Figure 1 and 8 shown, in this embodiment, an upper connecting seat 20 is fixed to the top of the slide block 2, and the upper connecting seat 20 is provided with a receiving cavity 21 for plugging and connecting with the output shaft 19 of the linear motor 18. By providing the receiving cavity 21 on the upper connecting seat 20, the connection between the output shaft 19 of the linear motor 18 and the slide block 2 is made more convenient.

[0047] As Figure 1 and 7 shown, in this embodiment, a placing seat 22 is provided at the bottom of the frame 1, and the placing seat 22 is provided with a mounting groove 23. The top of the main shaft 4 is fixed with an upper adjusting nut 24, and the upper adjusting nut 24 is located above the lower adjusting nut 10. The lower adjusting nut 10 is in threaded transmission connection with the main shaft 4. The temperature controller is placed in the mounting groove 23 of the placing seat 22, making the operation more convenient. By rotating the upper adjusting nut 24, the position of the main shaft 4 can be adjusted in the height direction as needed, thereby adjusting the length of the claw teeth 6 protruding from the sealing jaw sleeve 3. The upper adjusting nut 24 and the lower adjusting nut 10 can be divided into 60 grids, each grid being 6°. The thread pitch of the main shaft 4 is 1.5 mm, and each adjustment makes the main shaft 4 axially move 0.025 mm, achieving precise adjustment of the main shaft 4 in the height direction.

[0048] As Figure 1 shown, in this embodiment, a guide rail 25 extending along the height direction of the frame 1 is fixed to the frame 1, and a slider 26 is fixed to the slide block 2. The slider 26 is slidably connected to the guide rail 25.

[0049] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art to which the present invention pertains may make various modifications or supplements to the described specific embodiments or use similar means for substitution, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A capping device, the capping device comprising a frame (1), characterized in that, A sliding seat (2) is slidably connected to the frame (1). A sealing claw sleeve (3) is fixed to the bottom of the sliding seat (2). A main shaft (4) is slidably connected to the sliding seat (2). An installation seat (5) is fixed below the main shaft (4). A plurality of claw teeth (6) are arranged on the installation seat (5). A first spring (7) is connected between the claw teeth (6) and the installation seat (5). The claw teeth (6) are distributed in the circumferential direction of the installation seat (5). The claw teeth (6) are located inside the sealing claw sleeve (3) and protrude from the sealing claw sleeve (3). The claw teeth (6) have first inclined surfaces (8). A plurality of second inclined surfaces (9) are provided on the inner wall of the sealing claw sleeve (3). Each second inclined surface (9) corresponds to a first inclined surface (8). When the sealing claw sleeve (3) moves downward, each second inclined surface (9) can abut against and slide relative to the corresponding first inclined surface (8). A lower adjusting nut (10) is arranged at the top of the main shaft (4). A limiting block (11) for restricting the downward movement of the lower adjusting nut (10) is fixed to the frame (1). A driving mechanism (12) for driving the sliding seat (2) to move up and down is arranged on the frame (1). The sealing claw sleeve (3) is cylindrical. The claw teeth (6) are evenly distributed in the circumferential direction of the installation seat (5). A plurality of grooves (15) extending along the height direction of the installation seat (5) are formed in the installation seat (5). Each claw tooth (6) is located in a groove (15). The left side surface and the right side surface of each claw tooth (6) are respectively in contact with the left side surface and the right side surface of the corresponding groove (15). The outer end and the inner end of the first spring (7) are respectively connected to the inner side part of the claw tooth (6) and the inner side surface of the groove (15). The first inclined surface (8) is located in the lower half of the corresponding claw tooth (6). The upper half of each claw tooth (6) also has a third inclined surface (13). A plurality of fourth inclined surfaces (14) are also provided on the inner wall of the sealing claw sleeve (3). Each fourth inclined surface (14) corresponds to a third inclined surface (13). When each second inclined surface (9) abuts against and slides relative to the corresponding first inclined surface (8), each fourth inclined surface (14) can abut against and slide relative to the corresponding third inclined surface (13). The driving mechanism (12) includes a linear motor (18). The output shaft (19) of the linear motor (18) is connected to the top of the sliding seat (2). An upper connecting seat (20) is fixed to the top of the sliding seat (2). The upper connecting seat (20) has a receiving cavity (21) for plugging the output shaft (19) of the linear motor (18).

2. The capping device according to claim 1, characterized in that, The first inclined surface (8) is parallel to the corresponding second inclined surface (9). The third inclined surface (13) is parallel to the corresponding fourth inclined surface (14).

3. The capping device according to claim 1, characterized in that, The bottom of the claw tooth (6) has a pointed end (16). The pointed end (16) is located below the sealing claw sleeve (3).

4. A capping device according to claim 1, wherein, A second spring (17) is sleeved on the main shaft (4). The lower end of the second spring (17) is connected to the bottom of the main shaft (4), and the bottom of the sliding seat (2) can abut against the top of the second spring (17).

5. A capping device according to claim 1, wherein A placing seat (22) is arranged at the bottom of the frame (1). An installation groove (23) is formed in the placing seat (22). An upper adjusting nut (24) is fixed to the top of the main shaft (4). The upper adjusting nut (24) is located above the lower adjusting nut (10), and the lower adjusting nut (10) is in threaded transmission connection with the main shaft (4).

6. The capping device according to claim 1, wherein, A guide rail (25) extending in the height direction of the frame (1) is fixed to the frame (1). A slider (26) is fixed to the sliding seat (2), and the slider (26) is slidably connected to the guide rail (25).

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