Bottle cap tightening mechanism and aluminum foil sealing machine

Abstract

The utility model aims to provide a bottle cap tightening mechanism and aluminum foil sealing machine, including base and tightening subassembly, tightening subassembly includes two support frame, two bearing plate, two bottle clamping piece, two tightening piece, two first drive piece and two second drive piece, the two support frame is both sliding set up on the base, the two bearing plate is equipped with the two bottle clamping piece, the two first drive piece is equipped with the two second drive piece, and the two second drive piece is equipped with the two second drive piece. The two bottle clamping pieces and the two first driving pieces are arranged on the two supporting frames correspondingly, output shafts of the two first driving pieces are connected with the two bottle clamping pieces correspondingly, the two supporting frames drive the two bottle clamping pieces to clamp a bottle body jointly, and the two first driving pieces drive the two bottle clamping pieces to move the bottle body jointly. The two bearing plates are arranged on the two supporting frames in a sliding mode respectively, the two tightening pieces and the two second driving pieces are arranged on the two bearing plates respectively, output shafts of the two second driving pieces are connected with the two tightening pieces respectively, and the two bearing plates drive the two tightening pieces to clamp a bottle cap together. And the two second driving pieces respectively drive the two tightening pieces to jointly tighten the bottle cap.

Description

Technical Field

[0001] This utility model relates to the technical field of bottled product packaging, and in particular to a bottle cap tightening mechanism and an aluminum foil sealing machine. Background Technology

[0002] In the modern bottled product packaging industry, the sealing and encapsulation of bottled pharmaceuticals is a crucial step in ensuring product quality, shelf life, and safety. Aluminum foil sealing technology, due to its excellent sealing performance, moisture resistance, oxidation resistance, and aesthetic appeal, is widely used in bottled product packaging across numerous fields, including food, pharmaceuticals, cosmetics, and chemicals. The cap tightening mechanism of an aluminum foil sealing machine is an indispensable step in the bottle sealing process. Its function is to place the aluminum foil inside the cap before sealing the bottled pharmaceuticals. By tightening the cap onto the bottle body, the aluminum foil is made to fit tightly against the bottle opening, allowing for easy replacement and sealing of the bottle opening after the bottled product is transported to the electromagnetic induction working area.

[0003] However, existing bottle cap tightening mechanisms for aluminum foil sealing machines have the following shortcomings in practical use: Currently available aluminum foil sealing machines require clamping a bottle on the conveyor belt before tightening the cap, preventing it from moving with the belt. This process necessitates maintaining sufficient distance between the bottles on the conveyor belt to allow the tightening mechanism enough time to complete the tightening action. Consequently, the production efficiency of the aluminum foil sealing machine is low. Therefore, this application proposes an aluminum foil sealing machine bottle cap tightening mechanism. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a bottle cap tightening mechanism and aluminum foil sealing machine that can continuously tighten multiple bottle caps to improve production efficiency.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] A bottle cap tightening mechanism includes:

[0007] Base; and

[0008] A tightening assembly includes two support frames, two support plates, two bottle clamps, two tightening components, two first driving components, and two second driving components. The two support frames are slidably mounted on the base, with each support frame located at an opposite end of the base. The two bottle clamps are rotatably mounted on the ends of the two support frames that are close to each other. The two first driving components are mounted on the two support frames, and their output shafts are connected to the two bottle clamps, respectively. This allows the two first driving components to drive the two bottle clamps to rotate relative to the two support frames. The two support frames then drive the two bottle clamps to move closer together to clamp the bottle body. The two first driving components then drive the two bottle clamps to rotate in opposite directions, so that the two bottle clamps together move the bottle body.

[0009] The two support plates are slidably mounted on the two support frames in adjustable positions. The two tightening members are rotatably mounted on the ends of the two support plates that are close to each other. The two second driving members are respectively mounted on the two support plates, and the output shafts of the two second driving members are respectively connected to the two tightening members, so that the two second driving members drive the two tightening members to rotate relative to the two support plates. The two support plates drive the two tightening members to move closer to each other to clamp the bottle cap together. The two second driving members drive the two tightening members to rotate in the same direction so that the two tightening members tighten the bottle cap together.

[0010] Optionally, a horizontal plate is provided on the support frame, the horizontal plate slides vertically on the support frame, and the support plate is slidably disposed on the horizontal plate. The horizontal plate is used to drive the support plate to move up and down.

[0011] Optionally, the tightening component includes a tightening belt and two tightening wheels. The two tightening wheels are rotatably mounted on the support plate. One of the tightening wheels is connected to the output shaft of the second drive component. The tightening belt is respectively sleeved on the two tightening wheels so that the second drive component drives the tightening belt to rotate.

[0012] Optionally, the tightening component further includes a push plate, a vertical block, and a tightening spring. The vertical block is disposed on the support plate and located inside the tightening belt. The push plate passes through the vertical block, and the tightening spring is sleeved on the push plate. The tightening spring pushes against the push plate and the vertical block respectively, so that the push plate pushes against the inner side of the tightening belt, thereby causing the outer side of the tightening belt to abut against the bottle cap.

[0013] Optionally, both ends of the push plate are provided with arc-shaped surfaces, and the two arc-shaped surfaces are used to guide the inner side of the tightening belt to abut against the push plate.

[0014] Optionally, the tightening component further includes an adjusting screw, one end of which is rotatably connected to the support plate, and the other end of which is screwed to the cross plate.

[0015] Optionally, the bottle clamping component includes a clamping belt, a top block, a clamping spring, and two clamping wheels. Both clamping wheels are rotatably mounted on the support frame. One of the clamping wheels is connected to the output shaft of the first drive component. The clamping belt is respectively sleeved on the two clamping wheels. The top block is slidably mounted on the support frame and is located inside the clamping belt. The clamping spring is sleeved on the top block and pushes against the support frame and the top block respectively, so that the outer side of the clamping belt abuts against the bottle body.

[0016] Optionally, the clamping belt and the tightening belt are provided with a number of teeth on their inner and outer sides.

[0017] Optionally, the distance between the two clamping wheels is greater than the distance between the two tightening wheels.

[0018] Optionally, the snap-fit ​​structure comprising any one of the above further includes:

[0019] frame;

[0020] A sealing assembly includes a controller, an electromagnetic heating head, and a conveyor belt. The controller is mounted on the frame, the electromagnetic heating head is slidably mounted on the frame in a vertical direction, and the conveyor belt is mounted on the frame. The electromagnetic heating head, the conveyor belt, the first driving member, and the second driving member are all electrically connected to the controller. The conveyor belt is located below the electromagnetic heating head, and the base is mounted on the conveyor belt.

[0021] Compared with the prior art, the present invention has at least the following advantages:

[0022] The bottle cap tightening mechanism and bottle clamping component on the aluminum foil sealing machine of this utility model can continuously clamp the bottle body and move multiple bottles together, so that the tightening component can continuously rotate and tighten the bottle caps on multiple bottles, thereby improving the production efficiency of the aluminum foil sealing machine. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the bottle cap tightening mechanism and aluminum foil sealing machine according to a new embodiment of the present utility model.

[0025] Figure 2 This is a schematic diagram of the bottle cap tightening mechanism according to a new embodiment of the present utility model.

[0026] Figure 3 This is a top view of a bottle cap tightening mechanism according to a new embodiment of the present utility model.

[0027] Figure 4 for Figure 3 A magnified schematic diagram of the structure of part A in the diagram;

[0028] Figure 5 This is a structural schematic diagram of the cross-section of a bottle cap tightening mechanism according to a new embodiment of the present utility model;

[0029] Figure 6 This is a structural schematic diagram showing the mounting position of the third screw in a new embodiment of this utility model.

[0030] Figure 7 This is a schematic diagram of the base structure of a new embodiment of the present utility model;

[0031] Figure 8 This is a structural schematic diagram of the bottle clamp installation position according to a new embodiment of the present utility model.

[0032] Figure 9 This is a structural diagram showing the installation position of the tightening component in a new embodiment of this utility model.

[0033] Explanation of reference numerals in the attached figures:

[0034] 1. Bottle cap tightening mechanism and aluminum foil sealing machine; 10. Bottle cap tightening mechanism; 11. Base; 12. Tightening assembly; 121. Support frame; 122. Support plate; 123. Bottle clamping component; 124. Tightening component; 125. First driving component; 126. Second driving component; 127. First screw; 1211. Horizontal plate; 128. Second screw; 1241. Tightening belt; 1242. Tightening wheel; 1243. Push plate; 1244. Vertical block; 1245. Tightening spring; 1246. Third screw; 1231. Clamping belt; 1232. Top block; 1233. Clamping spring; 1234. Clamping wheel; 20. Aluminum foil sealing machine; 21. Frame; 22. Sealing assembly; 221. Controller; 222. Electromagnetic heating head; 223. Conveyor belt. Detailed Implementation

[0035] To facilitate understanding of this utility model, a more comprehensive description will be provided below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of this utility model.

[0036] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0037] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0038] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0039] like Figures 1 to 9 As shown, in one embodiment, a bottle cap tightening mechanism and an aluminum foil sealing machine 1 are provided. The bottle cap tightening mechanism 10 includes a base 11 and a tightening assembly 12. The tightening assembly 12 includes two support frames 121, two support plates 122, two bottle clamping parts 123, two tightening parts 124, two first driving parts 125, and two second driving parts 126. The two support frames 121 are slidably mounted on the base 11 in an adjustable position, and the two support frames 121 are respectively located at opposite ends of the base 11. The two bottle clamping parts 123 are rotatably mounted on the two support frames 121. At the two ends that are close to each other, two first driving members 125 are respectively mounted on two support frames 121, and the output shafts of the two first driving members 125 are respectively connected to two bottle clamping members 123, so that the two first driving members 125 drive the two bottle clamping members 123 to rotate relative to the two support frames 121, the two support frames 121 drive the two bottle clamping members 123 to move closer to each other to clamp the bottle body together, and the two first driving members 125 drive the two bottle clamping members 123 to rotate in opposite directions, so that the two bottle clamping members 123 together drive the bottle body to move.

[0040] It should be noted that the tightening assembly 12 also includes two first screws 127, which are respectively inserted through both ends of the base 11. The sides of the two support frames 121 away from the bottle clamping member 123 are respectively screwed to the two first screws 127. When the two first screws 127 rotate, they drive the two support frames 121 to slide closer or further apart, thereby causing the two support frames 121 to drive the two bottle clamping members 123 to clamp the bottle body together. Furthermore, the first driving member 125 is a motor structure. The first driving member 125 is disposed on the support frame 121 and is located above the bottle clamping member 123. The output shaft of the first driving member 125 is connected to the bottle clamping member 123. This allows the first driving member 125 to drive the bottle clamping member 123 to rotate relative to the support member. Since the two bottle clamping members 123 are located on two opposing support frames 121, the two bottle clamping members 123 together clamp the bottle body. When the two first driving members 125 drive the two bottle clamping members 123 to rotate in opposite directions, the two bottle clamping members 123 together drive the bottle body to move. For example, when the two bottle clamping members 123 together clamp the bottle body, one of the first driving members 125 drives one of the bottle clamping members 123 to rotate clockwise, and the other first driving member 125 drives the other bottle clamping member 123 to rotate counterclockwise. In this way, the bottle body can be clamped by the two bottle clamping members 123 while the bottle body can be moved.

[0041] like Figure 3 , Figure 6 , Figure 9 As shown, in one embodiment, each of the two support frames 121 is provided with a horizontal plate 1211. The two horizontal plates 1211 slide vertically on the two support frames 121 respectively, and the two support plates 122 are slidably disposed on the two horizontal plates 1211 respectively. The two horizontal plates 1211 are used to drive the two support plates 122 to move up and down.

[0042] It should be noted that the support frame 121 has a two-layer structure with a hollow middle section. The bottle clamping component 123 is located on the lower layer of the support frame 121, and the first driving component 125 is located on the upper layer of the support frame 121. Furthermore, the support frame 121 is provided with several sliding rods, each connecting the upper and lower layers of the support frame 121. The four corners of the horizontal plate 1211 slide on the sliding rods, and the horizontal plate 1211 is located between the bottle clamping component 123 and the first driving component 125, allowing the horizontal plate 1211 to slide up and down relative to the support between the bottle clamping component 123 and the first driving component 125.

[0043] like Figures 2 to 3 , Figure 6 , Figure 9As shown, in one embodiment, two support plates 122 are slidably mounted on two support frames 121 in adjustable positions, and the sliding direction of the two support plates 122 is consistent with the sliding direction of the two support frames 121. Further, the second drive member 126 is a motor structure, and the two second drive members 126 are respectively mounted on the two support plates 122. The output shafts of the two second drive members 126 are respectively connected to the two tightening members 124, so that the two second drive members 126 drive the two tightening members 124 to rotate relative to the two support plates 122. The two support plates 122 drive the two tightening members 124 to move closer to each other to clamp the bottle cap together. The two second drive members 126 drive the two tightening members 124 to rotate in the same direction so that the two tightening members 124 tighten the bottle cap together.

[0044] It should be noted that a slide rail is provided on the horizontal plate 1211, and the opening direction of the slide rail is consistent with the sliding direction of the support frame 121. A slide groove is provided on the support plate 122, and the slide groove engages with the slide rail, so that the support plate 122 can slide on the horizontal plate 1211. Furthermore, the tightening assembly 12 also includes two second screws 128. One end of the two second screws 128 is rotatably connected to the two support plates 122 respectively, and the other end of the two second screws 128 is screwed to the ends of the two horizontal plates 1211 away from the tightening member 124, so that the two second screws 128 drive the two support plates 122 to move closer or further apart, thereby causing the two tightening members 124 to move closer or further apart to jointly clamp or loosen the bottle cap. Furthermore, the two second driving members 126 respectively drive the two tightening members 124 to rotate in one direction. Since the two tightening members 124 are located on two opposing support frames 121 respectively, for example, when the two second driving members 126 rotate clockwise, the opposing sides of the two tightening members 124 will rotate in opposite directions, thereby enabling the two tightening members 124 to tighten the bottle cap when clamping it.

[0045] like Figures 3 to 4 , Figure 6 , Figure 9 As shown, in one embodiment, the tightening member 124 includes a tightening belt 1241 and two tightening wheels 1242. The two tightening wheels 1242 are rotatably mounted on the support plate 122. One of the tightening wheels 1242 is connected to the output shaft of the second drive member 126. The tightening belt 1241 is respectively sleeved on the two tightening wheels 1242 so that the second drive member 126 drives the tightening belt 1241 to rotate.

[0046] It should be noted that there is a gap between the two tightening wheels 1242. When the two first screws 127 drive the two support frames 121 to move closer together, the tightening wheels 1242 on the two tightening components 124 move closer together. The tightening belt 1241 is sleeved on the two tightening wheels 1242. When the tightening wheels 1242 on the two support frames 121 move closer together, the tightening belt 1241 between the two tightening wheels 1242 moves closer together to clamp the bottle body. It should be noted that the axis of the two tightening wheels 1242 on each tightening component 124 is located on the support plate 122, and the sides of the two tightening wheels 1242 extend from the edge of the support plate 122. In this way, when the two support plates 122 move closer together, the tightening wheels 1242 on the two tightening components 124 can jointly clamp the bottle cap.

[0047] like Figures 3 to 4 , Figure 6 , Figure 9 As shown, in one embodiment, the tightening member 124 further includes a push plate 1243, a stand block 1244, and a tightening spring 1245. The stand block 1244 is disposed on the support plate 122 and is located inside the tightening belt 1241. The push plate 1243 passes through the stand block 1244, and the tightening spring 1245 is sleeved on the push plate 1243. The tightening spring 1245 pushes the push plate 1243 and the stand block 1244 respectively, so that the push plate 1243 pushes the inner side of the tightening belt 1241, thereby causing the outer side of the tightening belt 1241 to abut against the bottle cap.

[0048] It should be noted that there is a gap between the two tightening wheels 1242, and the tightening belt 1241 is sleeved on the two tightening wheels 1242, so that there is a gap between the two inner sides of the tightening belt 1241, allowing the stand block 1244 to be placed on the support plate 122, and the stand block 1244 is located in the gap between the two inner sides of the tightening belt 1241. Furthermore, the push plate 1243 passes through the stand block 1244 along the sliding direction of the support plate 122, and the push plate 1243 is also located in the gap between the two inner sides of the tightening belt 1241, and the push plate 1243 faces the other tightening belt 1241. Furthermore, a sliding post is provided on the push plate 1243, which passes through the upright block 1244. The tightening spring 1245 is sleeved on the sliding post, so that when the push plate 1243 pushes against the inner side of the tightening belt 1241, the outer side of the tightening belt 1241 can press against the bottle cap together with the other tightening belt 1241. Since the tightening belt 1241 has elasticity, when the two tightening parts 124 approach each other to clamp the bottle cap, the farthest ends of the bottle cap will push against the two tightening belts 1241 respectively, so that the opposing sides of the two tightening belts 1241 are squeezed inward. In this way, the push plate 1243 can push the tightening belt 1241 to keep it in contact with the bottle cap, so that the two tightening belts 1241 together keep clamping the bottle cap.

[0049] It should be noted that the tightening assembly 12 also includes a third screw 1246. One end of the third screw 1246 is rotatably connected to the horizontal plate 1211, and the other end of the third screw 1246 is screwed to the support frame 121. When the third screw 1246 rotates, it causes the horizontal plate 1211 to drive the support plate 122 to move up and down, so that the height of the tightening component 124 and the bottle cap can be adjusted.

[0050] like Figure 3 , Figure 6 , Figure 9 As shown, in one embodiment, both ends of the push plate 1243 are provided with arc-shaped surfaces, and the two arc-shaped surfaces are used to guide the inner side of the tightening belt 1241 to abut against the push plate 1243.

[0051] It should be noted that when the pusher plate 1243 pushes the tightening belt 1241 between the two tightening wheels 1242 to abut against the bottle cap, the inner side of the tightening belt 1241 will form an angle with each of the two tightening wheels 1242. The two arc-shaped surfaces extend from the bottom side of the inner side of the pusher plate 1243 near the tightening belt 1241 to the other side, so that when the pusher plate 1243 pushes the tightening belt 1241, the tightening belt 1241 can slide smoothly off the pusher plate 1243.

[0052] like Figure 2 , Figures 5 to 6 , Figure 8 As shown, in one embodiment, the bottle clamping component 123 includes a clamping belt 1231, a top block 1232, a clamping spring 1233, and two clamping wheels 1234. Both clamping wheels 1234 are rotatably mounted on the support frame 121. One of the clamping wheels 1234 is connected to the output shaft of the first driving component 125. The clamping belt 1231 is respectively sleeved on the two clamping wheels 1234. The top block 1232 slides through the support frame 121 and is located inside the clamping belt 1231. The clamping spring 1233 is sleeved on the top block 1232. The clamping spring 1233 pushes the support frame 121 and the top block 1232 respectively so that the outer side of the clamping belt 1231 abuts against the bottle body.

[0053] It should be noted that both the inner and outer surfaces of the clamping belt 1231 and the tightening belt 1241 are provided with several teeth. When the two clamping belts 1231 clamp the bottle body, the teeth on the two clamping belts 1231 can prevent the bottle body from rotating. For example, for a round bottle body, the two clamping members on the two support frames 121 approach each other to clamp the bottle body, so that the clamping belts 1231 on the two clamping members will push the bottle body at the same time. Since there is a gap between the two clamping wheels 1234, the bottle body will push the two clamping belts 1231 in opposite directions, which increases the contact area between the two clamping belts 1231 and the bottle body, and thus increases the number of teeth on the clamping belts 1231 abutting. In this way, the two clamping members can clamp the bottle body more firmly.

[0054] like Figure 2 , Figure 6 As shown, in one embodiment, the distance between the two clamping wheels 1234 is greater than the distance between the two tightening wheels 1242.

[0055] It should be noted that the two clamping wheels 1234 drive the clamping belt 1231 to abut against the bottle body, and the two tightening wheels 1242 drive the tightening belt 1241 to abut against the bottle cap. The distance between the two clamping wheels 1234 is greater than the distance between the two tightening wheels 1242, so that the two clamping parts first clamp the bottle body and drive the bottle body to move, and then move the bottle body between the two tightening parts 124. In this way, the two clamping parts can first adjust and fix the position of the bottle body, so that the two tightening parts 124 and the two ends of the bottle cap are evenly stressed, so that the two tightening parts 124 can tighten the bottle cap more quickly.

[0056] like Figure 1 As shown, in one embodiment, an aluminum foil sealing machine 20 includes a frame 21 and a sealing assembly 22. The sealing assembly 22 includes a controller 221, an electromagnetic heating head 222, and a conveyor belt 223. The controller 221 is mounted on the frame 21. The electromagnetic heating head 222 is slidably mounted on the frame 21 in a vertical direction. The conveyor belt 223 is mounted on the frame 21. The electromagnetic heating head 222, the conveyor belt 223, the first driving member 125, and the second driving member 126 are all electrically connected to the controller 221. The conveyor belt 223 is located below the electromagnetic heating head 222, and the base 11 is mounted on the conveyor belt 223.

[0057] It should be noted that the threaded belt is located between the two tightening components 12, so that the two bottle clamping components 123 can clamp each bottle body on the conveyor belt 223. Furthermore, the speed at which the two bottle clamping components 123 move the bottle body is consistent with the speed at which the conveyor belt 223 transports the bottle body. In this way, each bottle body can move continuously from the tightening component 12. Furthermore, when the two bottle clamping components 123 clamp each bottle body and move continuously on the conveyor belt 223, the two tightening components 124 can continuously rotate the bottle cap to tighten the bottle cap onto the bottle body.

[0058] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A bottle cap tightening mechanism, characterized in that, include: Base; and A tightening assembly includes two support frames, two support plates, two bottle clamps, two tightening components, two first driving components, and two second driving components. The two support frames are slidably mounted on the base, with each support frame located at an opposite end of the base. The two bottle clamps are rotatably mounted on the ends of the two support frames that are close to each other. The two first driving components are mounted on the two support frames, and their output shafts are connected to the two bottle clamps, respectively. This allows the two first driving components to drive the two bottle clamps to rotate relative to the two support frames. The two support frames then drive the two bottle clamps to move closer together to clamp the bottle body. The two first driving components then drive the two bottle clamps to rotate in opposite directions, so that the two bottle clamps together move the bottle body. The two support plates are slidably mounted on the two support frames in adjustable positions. The two tightening members are rotatably mounted on the ends of the two support plates that are close to each other. The two second driving members are respectively mounted on the two support plates, and the output shafts of the two second driving members are respectively connected to the two tightening members, so that the two second driving members drive the two tightening members to rotate relative to the two support plates. The two support plates drive the two tightening members to move closer to each other to clamp the bottle cap together. The two second driving members drive the two tightening members to rotate in the same direction so that the two tightening members tighten the bottle cap together.

2. The bottle cap tightening mechanism according to claim 1, characterized in that, A horizontal plate is provided on the support frame, and the horizontal plate slides on the support frame in a vertical direction. The support plate is slidably disposed on the horizontal plate, and the horizontal plate is used to drive the support plate to move up and down.

3. The bottle cap tightening mechanism according to claim 2, characterized in that, The tightening component includes a tightening belt and two tightening wheels. The two tightening wheels are rotatably mounted on the support plate. One of the tightening wheels is connected to the output shaft of the second drive component. The tightening belt is respectively sleeved on the two tightening wheels so that the second drive component drives the tightening belt to rotate.

4. The bottle cap tightening mechanism according to claim 3, characterized in that, The tightening component also includes a push plate, a vertical block, and a tightening spring. The vertical block is disposed on the support plate and is located inside the tightening belt. The push plate passes through the vertical block, and the tightening spring is sleeved on the push plate. The tightening spring pushes the push plate and the vertical block respectively, so that the push plate pushes the inner side of the tightening belt, thereby causing the outer side of the tightening belt to abut against the bottle cap.

5. The bottle cap tightening mechanism according to claim 4, characterized in that, Both ends of the push plate are provided with arc-shaped surfaces, and the two arc-shaped surfaces are used to guide the inner side of the tightening belt to abut against the push plate.

6. The bottle cap tightening mechanism according to claim 4, characterized in that, The tightening component also includes an adjusting screw, one end of which is rotatably connected to the support plate, and the other end of which is screwed to the cross plate.

7. The bottle cap tightening mechanism according to claim 6, characterized in that, The bottle clamping component includes a clamping belt, a top block, a clamping spring, and two clamping wheels. Both clamping wheels are rotatably mounted on the support frame. One of the clamping wheels is connected to the output shaft of the first drive component. The clamping belt is respectively sleeved on the two clamping wheels. The top block is slidably mounted on the support frame and is located inside the clamping belt. The clamping spring is sleeved on the top block and pushes against the support frame and the top block respectively, so that the outer side of the clamping belt abuts against the bottle body.

8. The bottle cap tightening mechanism according to claim 7, characterized in that, Both the clamping belt and the tightening belt have several teeth on their inner and outer sides.

9. The bottle cap tightening mechanism according to claim 7, characterized in that, The distance between the two clamping wheels is greater than the distance between the two tightening wheels.

10. An aluminum foil sealing machine, characterized in that, The bottle cap tightening mechanism, comprising any one of claims 1 to 9, further comprises: frame; A sealing assembly includes a controller, an electromagnetic heating head, and a conveyor belt. The controller is mounted on the frame, the electromagnetic heating head is slidably mounted on the frame in a vertical direction, and the conveyor belt is mounted on the frame. The electromagnetic heating head, the conveyor belt, the first driving member, and the second driving member are all electrically connected to the controller. The conveyor belt is located below the electromagnetic heating head, and the base is mounted on the conveyor belt.

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