Automatic sealing machine for canned aluminum foil

Abstract

The invention relates to the technical field of cigarette packaging, and discloses a canned aluminum foil automatic sealing machine which comprises a conveying device, an aluminum foil feeding device, a primary sealing device, a secondary sealing device and a rotation driving device, the feeding device is used for adsorbing and placing aluminum foil on a to-be-sealed can body, the primary sealing device is used for conducting soldering iron pre-sealing on the to-be-sealed can body, and the secondary sealing device is used for conducting secondary sealing on the to-be-sealed can body. The secondary sealing device is used for conducting soldering iron final sealing on the to-be-sealed can body, the rotation driving device is rotationally arranged above the conveying device, a mold box for containing the to-be-sealed can body is arranged on the periphery of the rotation driving device, and the aluminum foil feeding device, the primary sealing device and the secondary sealing device are sequentially arranged along the rotation stroke of the rotation driving device. According to the automatic sealing machine for the canned aluminum foil, automatic feeding and automatic discharging are carried out on the to-be-sealed can body through the conveying device, the to-be-sealed can body is driven to be sequentially subjected to feeding, pre-sealing and final sealing under rotation of the rotation driving device, automatic soldering iron sealing is achieved, and the production efficiency is greatly improved.

Description

Technical Field

[0001] This invention relates to the field of cigarette packaging technology, and more particularly to an automatic sealing machine for aluminum foil cans. Background Technology

[0002] Currently, most cigarettes are packaged in boxes. However, to enhance the product's prestige and brand recognition, stand out in the high-end tobacco market, showcase quality, highlight Eastern aesthetics, and possess collectible value, canned packaging is also used.

[0003] After the cigarettes are filled into the can, an aluminum foil sheet is sealed on the inner can to keep the cigarettes moist. Because the walls of the inner can are very narrow, the traditional glue sealing method is not only difficult to guarantee in terms of quality, but also has very low production efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide an automatic sealing machine for aluminum foil cans, so as to solve the technical problems of difficulty in ensuring the quality and low production efficiency of canned cigarettes when using glue sealing.

[0005] To achieve this objective, the present invention adopts the following technical solution: This invention provides an automatic sealing machine for canned aluminum foil, comprising: A conveying device that transports the tank to be sealed along a first direction; An aluminum foil feeding device includes an aluminum foil storage platform and a feeding mechanism. Several aluminum foils are stacked on the aluminum foil storage platform, and the feeding mechanism is located below the aluminum foil storage platform to absorb aluminum foil and place it at the sealing position of the can to be sealed. A primary sealing device, which is used to pre-seal the can to be sealed with a soldering iron; A secondary sealing device is used to perform a final sealing with a soldering iron on the container to be sealed. A rotary drive device is rotatably mounted above the conveying device. A mold box for accommodating the can to be sealed is provided on the outer periphery of the rotary drive device. The aluminum foil feeding device, the primary sealing device, and the secondary sealing device are arranged sequentially along the rotation stroke of the rotary drive device and located on one side of the conveying device.

[0006] The can to be sealed is placed on the conveying device, which transports it along the first direction to the mold of the rotary drive device. The rotary drive device rotates and moves the can to be sealed to the position below the feeding mechanism, i.e., the feeding position. The feeding mechanism picks up the aluminum foil stacked on the aluminum foil storage platform and places the aluminum foil at the opening of the can to be sealed, thus completing the feeding of the aluminum foil. The rotary drive device continues to rotate and moves the can to be sealed to the position below the primary sealing device, i.e., the pre-sealing position. The primary sealing device performs a soldering pre-sealing operation on the aluminum foil covering the can. The rotary drive device rotates again and moves the can to be sealed to the position below the secondary sealing device, i.e., the final sealing position. The secondary sealing device performs a soldering final sealing operation on the aluminum foil covering the can. The rotary drive device rotates once more and moves the sealed can to the position on the conveying device, which then carries the finished sealed can to the next process. In summary, by using a conveyor device to automatically feed and unload the cans to be sealed, and by rotating the drive device, the cans are driven through feeding, pre-sealing, and final sealing in sequence, achieving automated soldering sealing with good sealing performance, excellent finished product quality, and significantly improved production efficiency.

[0007] As a preferred embodiment of the automatic sealing machine for aluminum foil cans, a limiting arc plate is provided on one side of the conveying device. The limiting arc plate is spaced apart from the rotation drive device. The limiting arc plate is used to support the can to be sealed and to limit the can to be sealed to be located inside the mold box.

[0008] The two ends of the limiting arc plate extend to one side of the conveying device, and the cross-section of the limiting arc is L-shaped. When the rotating drive device drives the tank to be sealed to the feeding position, the pre-sealing position, and the final sealing position, the inner bottom wall of the limiting arc plate provides stable support for the tank to be sealed, and the inner arc surface of the limiting arc plate abuts against the tank to be sealed and keeps it in the mold box, ensuring the accuracy of pre-sealing and final sealing and improving the quality of finished products.

[0009] As a preferred embodiment of an automatic sealing machine for aluminum foil cans, the primary sealing device includes a first mounting bracket, which is disposed on one side of the conveying device. A first lifting mechanism is provided on the first mounting bracket, and a pre-sealing soldering iron is provided at the output end of the first lifting mechanism. The pre-sealing soldering iron is located above the mold box.

[0010] The first lifting mechanism drives the pre-sealing soldering iron to move vertically to pre-seal the aluminum foil onto the can to be sealed. The heat from the soldering iron is concentrated, which minimizes thermal damage to the surrounding materials and effectively avoids material deformation or coating damage caused by overheating. This helps to ensure the structural integrity and appearance quality of the sealed can.

[0011] As a preferred embodiment of the automatic sealing machine for aluminum foil cans, the secondary sealing device includes a second mounting bracket, which is disposed on one side of the conveying device. A second lifting mechanism is provided on the second mounting bracket, and a final sealing soldering iron is provided at the output end of the second lifting mechanism. The final sealing soldering iron is located above the mold box.

[0012] The second lifting mechanism drives the final sealing soldering iron to move vertically to finally seal the aluminum foil onto the can to be sealed. The pre-sealing soldering iron initially hooks the aluminum foil and the can to be sealed, making them connected and not falling off. The final sealing soldering iron performs the final and tight sealing of the can's opening, making the two completely and firmly bonded. The two sealing processes together ensure the sealing quality of the can.

[0013] As a preferred embodiment of the automatic sealing machine for aluminum foil cans, the automatic sealing machine for aluminum foil cans further includes a lifting drive mechanism, which includes: Support frame; A guide rod, the axial direction of which is vertical, the guide rod passes through the support frame and is slidably connected to the support frame; A lead screw, the axis of which is arranged vertically, passes through the support frame and is threadedly connected to the support frame.

[0014] The support frame can be adjusted vertically by turning the screw forward or backward under the guidance of the guide rod to accommodate canned products of different sizes, making the equipment highly versatile.

[0015] As a preferred embodiment of an automatic sealing machine for aluminum foil cans, the lifting drive mechanism is provided with multiple components, and the first mounting bracket, the second mounting bracket, and the feeding mechanism are selectively and one-to-one connected to the support frame of the lifting drive mechanism.

[0016] As a preferred embodiment of an automatic sealing machine for aluminum foil cans, the feeding mechanism includes: Third mounting bracket; A negative pressure distribution pipe is provided, with its axial direction arranged horizontally and rotatably connected to the third mounting bracket. Several suction nozzles are provided on the outer periphery of the negative pressure distribution pipe, and a negative pressure supply device is connected to the negative pressure distribution pipe. A cam is disposed at one end of the negative pressure distribution pipe, and one end of the negative pressure distribution pipe elastically abuts against the outer contour of the cam; A lifting cylinder, the output end of which is connected to the third mounting bracket.

[0017] The lifting cylinder pushes the third mounting bracket to move vertically, and the lifting cylinder pushes the third mounting bracket to rise. The negative pressure distribution pipe connected to the third mounting bracket rises synchronously. One end of the negative pressure distribution pipe is tightly fitted with the outer contour of the cam under the action of elasticity, and rolls along the outer contour of the cam so that the suction nozzle on the negative pressure distribution pipe faces upward, so as to absorb the aluminum foil on the aluminum foil storage platform. The lifting cylinder drives the third mounting bracket to fall, and the negative pressure distribution pipe connected to the third mounting bracket falls synchronously. The negative pressure distribution pipe rolls along the outer contour of the cam so that the suction nozzle on the negative pressure distribution pipe faces downward, so as to place the aluminum foil at the mouth of the can to be sealed. The structure is simple and the fit is precise.

[0018] As a preferred embodiment of an automatic sealing machine for aluminum foil cans, the rotary drive device includes: The rotating part has several mold boxes evenly spaced on its outer periphery, and the shape and size of the mold boxes match the shape and size of the can to be sealed. A rotation drive is located below the rotating part, and the output end of the rotation drive is coaxially connected to the rotating part to drive the rotating part to rotate.

[0019] By rotating the drive unit to drive the rotating part to rotate intermittently, the tank to be sealed is brought to the corresponding position of each mechanism, thus realizing automated operation.

[0020] As a preferred embodiment of an automatic sealing machine for aluminum foil cans, the conveying device includes an inlet conveyor belt and an outlet conveyor belt arranged along the first direction. The rotating drive is located between the inlet conveyor belt and the outlet conveyor belt, and the rotating part is located above the inlet conveyor belt and the outlet conveyor belt and has a diameter larger than the gap between the inlet conveyor belt and the outlet conveyor belt.

[0021] The gap between the inlet conveyor belt and the outlet conveyor belt is designed to leave space for the installation of the rotating drive component. The vertical projection of the rotating part covers the discharge end of the inlet conveyor belt and the inlet end of the outlet conveyor belt, ensuring that the cans to be sealed on the inlet conveyor belt are smoothly introduced into the mold box, and the sealed cans on the rotating part are smoothly discharged from the mold box.

[0022] As a preferred embodiment of the automatic sealing machine for aluminum foil cans, the automatic sealing machine for aluminum foil cans further includes: A can-discharging auxiliary device is disposed between the can-discharging conveyor belt and the rotating part, and is used to push the sealed can body away from the mold and place it on the can-discharging conveyor belt.

[0023] The can-out auxiliary device pushes the sealed can to detach from the mold box and positions it on the can-out conveyor belt, ensuring that the sealed can smoothly detach from the mold box to guarantee continuous operation.

[0024] The beneficial effects of this invention are: The automatic aluminum foil sealing machine proposed in this invention places the can to be sealed on a conveying device, which transports the can along a first direction to the mold of a rotary drive device. The rotary drive device rotates, bringing the can below the feeding mechanism (i.e., the feeding position). The feeding mechanism absorbs the aluminum foil stacked on the aluminum foil storage platform and places the aluminum foil at the opening of the can to be sealed, thus completing the feeding of the aluminum foil. The rotary drive device continues to rotate, bringing the can below the primary sealing device (i.e., the pre-sealing position). The primary sealing device performs a soldering pre-sealing operation on the aluminum foil covering the can. The rotary drive device rotates again, bringing the can below the secondary sealing device (i.e., the final sealing position). The secondary sealing device performs a soldering final sealing operation on the aluminum foil covering the can. The rotary drive device rotates once more, bringing the sealed can onto the conveying device, which then carries the finished sealed can into the next process. In summary, by using a conveyor device to automatically feed and unload the cans to be sealed, and by rotating the drive device, the cans are driven through feeding, pre-sealing, and final sealing in sequence, achieving automated soldering sealing with good sealing performance, excellent finished product quality, and significantly improved production efficiency. Attached Figure Description

[0025] Figure 1 This is a front view of the automatic aluminum foil sealing machine provided in an embodiment of the present invention; Figure 2 This is a front view of the concealed electrical cabinet of the automatic aluminum foil sealing machine provided in this embodiment of the invention; Figure 3 This is a top view of the automatic sealing machine for aluminum foil cans provided in an embodiment of the present invention.

[0026] In the picture: 1. Conveying device; 11. Inlet conveyor belt; 12. Outlet conveyor belt; 2. Aluminum foil feeding device; 21. Aluminum foil storage platform; 22. Feeding mechanism; 221. Third mounting bracket; 222. Negative pressure distribution pipe; 223. Cam; 224. Lifting cylinder; 3. Primary sealing device; 31. First mounting bracket; 32. First lifting mechanism; 33. Pre-sealing soldering iron; 4. Secondary sealing device; 41. Second mounting bracket; 42. Second lifting mechanism; 43. Final sealing soldering iron; 5. Rotary drive device; 51. Rotating part; 511. Turntable; 52. Mold box; 53. Indexing servo motor; 6. Can-discharging auxiliary device; 61. Push plate; 62. Can-discharging cylinder; 7. Lifting drive mechanism; 71. Support frame; 72. Guide rod; 73. Lead screw; 74. Adjusting handle; 100. Tank to be sealed; 200. Sealed tank. Detailed Implementation

[0027] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0028] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or 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 invention according to the specific circumstances.

[0029] In the description of this invention, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0030] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0031] Combination Figures 1-3 As shown, this embodiment provides an automatic sealing machine for canned aluminum foil, including a conveying device 1, an aluminum foil feeding device 2, a primary sealing device 3, a secondary sealing device 4, and a rotation drive device 5. The aluminum foil feeding device 2, the primary sealing device 3, and the secondary sealing device 4 are all located on one side of the conveying device 1, and the conveying device 1 is driven along a first direction (…). Figure 3 (In the direction indicated by the middle arrow) Transfer the tank to be sealed 100.

[0032] like Figure 2 As shown, the rotary drive device 5 is rotatably mounted above the conveying device 1, and a mold box 52 for accommodating the can 100 to be sealed is provided on the outer periphery of the rotary drive device 5 (see Figure 1). Figure 3The mold 52 is located on the outer periphery of the rotating drive device 5 and is open, and the shape of the mold 52 matches the shape of the can 100 to be sealed.

[0033] like Figure 1 As shown, the aluminum foil feeding device 2 includes an aluminum foil storage platform 21 and a feeding mechanism 22. Several aluminum foils are stacked on the aluminum foil storage platform 21. The feeding mechanism 22 is located below the aluminum foil storage platform 21 and is used to absorb aluminum foil and place it at the sealing position of the can 100 to be sealed. The primary sealing device 3 is used to pre-seal the can 100 to be sealed with a soldering iron, and the secondary sealing device 4 is used to perform final sealing of the can 100 to be sealed with a soldering iron. The aluminum foil feeding device 2, the primary sealing device 3, and the secondary sealing device 4 are arranged sequentially along the rotation stroke of the rotation drive device 5.

[0034] By placing the can 100 to be sealed onto the conveying device 1, the conveying device 1 transports the can 100 to be sealed into the mold 52 of the rotary drive device 5 along the first direction. The rotary drive device 5 rotates and moves the can 100 to be sealed to the position below the feeding mechanism 22, i.e., at the feeding position. The feeding mechanism 22 absorbs the aluminum foil stacked on the aluminum foil storage platform 21 and places the aluminum foil at the opening of the can 100 to be sealed, thus completing the feeding of the aluminum foil. The rotary drive device 5 continues to rotate and moves the can 100 to the position of the primary sealing position. Below device 3, at the pre-sealing position, the primary sealing device 3 performs a soldering pre-sealing operation on the aluminum foil covering the can 100 to be sealed; the rotation drive device 5 rotates again to move the can 100 to be sealed to the position below the secondary sealing device 4, at the final sealing position, where the secondary sealing device 4 performs a soldering final sealing operation on the aluminum foil covering the can 100 to be sealed; the rotation drive device 5 rotates again to move the sealed can 200 to the position on the conveying device 1, and the conveying device 1 moves the finished sealed can 200 into the next process.

[0035] In summary, this embodiment utilizes the conveying device 1 to automatically feed and unload the can 100 to be sealed. Under the rotation of the rotary drive device 5, the can 100 to be sealed is driven to pass through feeding, pre-sealing and final sealing in sequence, realizing automated soldering iron sealing. The sealing performance is good, the finished product quality is excellent, and the production efficiency is greatly improved.

[0036] To ensure that the can 100 to be sealed remains within the mold 52 during the rotation of the drive device 5, and to prevent it from falling out. Figure 3As shown, a limiting arc plate is provided on one side of the conveying device 1. The two ends of the limiting arc plate extend to one side of the conveying device 1. The cross-section of the limiting arc plate is L-shaped. The inner arc surface of the limiting arc plate is spaced apart from the rotation drive device 5. The limiting arc plate is used to support the can 100 to be sealed and to limit the can 100 to be sealed to be located within the mold box 52. When the rotation drive device 5 drives the can 100 to be sealed to the feeding position, the pre-sealing position, and the final sealing position, the inner bottom wall of the limiting arc plate provides stable support for the can 100 to be sealed. The inner arc surface of the limiting arc plate abuts against the can 100 to be sealed and holds it in the mold box 52, ensuring the accuracy of feeding, pre-sealing, and final sealing, and improving the quality of the finished product.

[0037] like Figure 3 As shown, the rotation drive device 5 in this embodiment includes a rotating part 51 and a rotation drive component. A plurality of molds 52 are evenly spaced on the outer periphery of the rotating part 51. The shape and size of the molds 52 match the shape and size of the can 100 to be sealed. The rotation drive component is located below the rotating part 51, and its output end is coaxially connected to the rotating part 51 to drive the rotating part 51 to rotate. By intermittently rotating the rotating part 51 with the rotation drive component, the can 100 to be sealed is brought to the corresponding position of each mechanism, achieving automated operation.

[0038] The rotation drive component is preferably an indexing servo motor 53, which can achieve high-precision angle control and ensure that the indexing process is efficient and has no delay.

[0039] like Figure 3 As shown, the conveying device 1 of this embodiment includes an inlet conveyor belt 11 and an outlet conveyor belt 12 arranged along a first direction. A rotating drive is located between the inlet conveyor belt 11 and the outlet conveyor belt 12. A rotating part 51 is located above the inlet conveyor belt 11 and the outlet conveyor belt 12 and its diameter is larger than the gap between the inlet conveyor belt 11 and the outlet conveyor belt 12. The gap between the inlet conveyor belt 11 and the outlet conveyor belt 12 is designed to leave space for the installation of the rotating drive. The projection of the rotating part 51 in the vertical direction covers the discharge end of the inlet conveyor belt 11 and the inlet end of the outlet conveyor belt 12, ensuring that the cans 100 to be sealed on the inlet conveyor belt 11 are smoothly introduced into the mold box 52, and that the sealed cans 200 on the rotating part 51 are smoothly discharged from the mold box 52.

[0040] Optionally, such as Figure 2As shown, the rotating part 51 includes a turntable 511. Multiple turntables 511 are provided; in this embodiment, three turntables 511 are provided. The three turntables 511 are stacked, and spacers are provided between adjacent turntables 511 to create gaps. Each turntable 511 has a mold box 52 on its outer periphery, and the mold boxes 52 on each turntable 511 are vertically aligned. This arrangement reduces the contact area between the mold box 52 and the sealing can 200, facilitating the separation of the sealing can 200 from the mold box 52. Furthermore, it increases the thickness of the turntable 511, ensuring the can 100 to be sealed remains vertical and preventing it from tipping over within the mold box 52.

[0041] Optionally, to further ensure that the sealed can 200 can smoothly detach from the mold 52, the automatic aluminum foil sealing machine also includes a can-discharge auxiliary device 6. The can-discharge auxiliary device 6 is located between the can-discharge conveyor belt 12 and the rotating part 51, and is used to push the sealed can 200 detach from the mold 52 and place it on the can-discharge conveyor belt 12. The can-discharge auxiliary device 6 pushes the sealed can 200 detach from the mold 52 and positions it on the can-discharge conveyor belt 12, ensuring that the sealed can 200 can smoothly detach from the mold 52, thus ensuring continuous operation.

[0042] Specifically, such as Figure 3 As shown, the can-discharging auxiliary device 6 is located on the other side of the conveying device 1. The can-discharging auxiliary device 6 includes a push plate 61 and a can-discharging cylinder 62. The axial direction of the can-discharging cylinder 62 is arranged along the first direction. The can-discharging cylinder 62 is located above the can-discharging conveyor belt 12 and below the rotating part 51. The push plate 61 is arranged on the output end of the can-discharging cylinder 62, and the initial position of the push plate 61 is located inside the mold box 52. The extension and retraction of the can-discharging cylinder 62 drives the push plate 61 to push the sealed can body 200, which has been sealed, onto the can-discharging conveyor belt 12.

[0043] The feeding mechanism 22 in this embodiment includes a third mounting bracket 221, a negative pressure distribution pipe 222, a cam 223, and a lifting cylinder 224. The negative pressure distribution pipe 222 is axially arranged in the horizontal direction and rotatably connected to the third mounting bracket 221. Several suction nozzles are provided on the outer periphery of the negative pressure distribution pipe 222. A negative pressure supply device (not shown in the figure) is connected to the negative pressure distribution pipe 222. The cam 223 is located at one end of the negative pressure distribution pipe 222, and one end of the negative pressure distribution pipe 222 elastically abuts against the outer contour of the cam 223. The output end of the lifting cylinder 224 is connected to the third mounting bracket 221. A tension spring is provided between one end of the negative pressure distribution pipe 222 and the side wall of the cam 223. The rotation and reset of the negative pressure distribution pipe 222 are achieved by the contraction of the tension spring and the lifting cylinder 224.

[0044] As can be understood, the lifting cylinder 224 pushes the third mounting bracket 221 to move vertically, and the lifting cylinder 224 pushes the third mounting bracket 221 to rise. Simultaneously, the negative pressure distribution pipe 222 connected to the third mounting bracket 221 rises. One end of the negative pressure distribution pipe 222, under the elastic action of the tension spring, tightly fits against the outer contour of the cam 223 and rolls along the outer contour of the cam 223, causing the suction nozzle on the negative pressure distribution pipe 222 to face upwards, thus adsorbing the aluminum foil on the aluminum foil storage platform 21. The lifting cylinder 224 drives the third mounting bracket 221 to descend, and the negative pressure distribution pipe 222 connected to the third mounting bracket 221 descends simultaneously. The negative pressure distribution pipe 222 rolls along the outer contour of the cam 223, causing the suction nozzle on the negative pressure distribution pipe 222 to face downwards, thus placing the aluminum foil at the opening of the can 100 to be sealed. The lifting cylinder 224 controls the negative pressure distribution pipe 222 to reciprocate 180°, resulting in a simple structure and precise fit.

[0045] like Figure 2 As shown, the primary sealing device 3 in this embodiment includes a first mounting bracket 31, which is disposed on one side of the conveying device 1. A first lifting mechanism 32 is disposed on the first mounting bracket 31, and a pre-sealing soldering iron 33 is disposed at the output end of the first lifting mechanism 32. The pre-sealing soldering iron 33 is located above the mold box 52. The first lifting mechanism 32 drives the pre-sealing soldering iron 33 to move vertically to pre-seal the aluminum foil onto the can 100 to be sealed. The heat of the soldering iron is concentrated, resulting in less heat damage to the surrounding materials of the can, effectively avoiding material deformation or coating damage caused by overheating, and helping to ensure the structural integrity and appearance quality of the sealed can 200.

[0046] like Figure 2 As shown, the secondary sealing device 4 in this embodiment includes a second mounting bracket 41, which is disposed on one side of the conveying device 1. A second lifting mechanism 42 is disposed on the second mounting bracket 41, and a final sealing soldering iron 43 is disposed at the output end of the second lifting mechanism 42. The final sealing soldering iron 43 is located above the mold box 52. The second lifting mechanism 42 drives the final sealing soldering iron 43 to move vertically to finally seal the aluminum foil onto the can 100 to be sealed. The pre-sealing soldering iron 33 initially hooks the aluminum foil and the can 100 to be sealed, so that the two are connected and do not fall off. The final sealing soldering iron 43 performs a final and tight seal on the opening of the can 100 to be sealed, so that the two are completely and firmly combined. The sealing quality of the can 200 is ensured by the two sealing processes.

[0047] Optionally, both the first lifting mechanism 32 and the second lifting mechanism 42 are cylinders. In other embodiments, they can also be hydraulic cylinders, etc. This embodiment does not make specific limitations on this, as long as they can achieve lifting.

[0048] To achieve automatic sealing of double or multiple cans of cigarettes, this embodiment uses a double-can pack as an example. Two stacks of aluminum foil are piled on the aluminum foil storage platform 21, and two suction nozzles are installed on the negative pressure distribution pipe 222, with the gap between the two suction nozzles and the two stacks of aluminum foil remaining consistent. Simultaneously, two pre-sealing soldering irons 33 and two final-sealing soldering irons 43 are used. The angle of one rotation of the indexing servo motor 53 is divided into the included angle between the two mold boxes 52, thereby achieving automatic sealing of the double aluminum foil of the double-can pack of cigarettes, significantly improving sealing efficiency. Of course, in other embodiments, three, four, or even more cans can be sealed simultaneously; this embodiment will not list them all.

[0049] To improve the versatility of automatic aluminum foil sealing machines for canned products of different sizes, such as... Figure 1 and Figure 2 As shown, the automatic aluminum foil sealing machine also includes a lifting drive mechanism 7. Specifically, the lifting drive mechanism 7 includes a support frame 71, a guide rod 72, a lead screw 73, and an adjusting handle 74. The guide rod 72 is axially arranged in the vertical direction, passes through the support frame 71, and is slidably connected to the support frame 71. The lead screw 73 is axially arranged in the vertical direction, and the adjusting handle 74 is located at the top of the lead screw 73 for easy manual adjustment by the operator. The lead screw 73 passes through the support frame 71 and is threadedly connected to the support frame 71. By turning the lead screw 73 in the forward or reverse direction under the guidance of the guide rod 72, the vertical lifting of the support frame 71 can be adjusted to accommodate canned products of different sizes, making the equipment highly versatile.

[0050] Preferably, multiple lifting drive mechanisms 7 are provided, and the first mounting bracket 31, the second mounting bracket 41, and the feeding mechanism 22 are selectively and correspondingly connected to the support frame 71 of the lifting drive mechanism 7. In this embodiment, both the feeding mechanism 22 and the second mounting bracket 41 are provided with lifting drive mechanisms 7 so that the positions of the aluminum foil storage platform 21 and the sealing soldering iron can be adjusted up and down to accommodate canned products of different sizes.

[0051] Now combined Figures 1-3 The sealing process of the automatic aluminum foil sealing machine for cans will be described in further detail: By rotating the adjusting handle 74 of the lifting drive mechanism 7 connected to the third mounting bracket 221, the distance between the aluminum foil storage platform 21 and the suction nozzle is adjusted. By rotating the adjusting handle 74 of the lifting drive mechanism 7 connected to the second mounting bracket 41, the distance between the final sealing soldering iron 43 and the pre-sealed can 100 to be sealed is adjusted.

[0052] Adjust the parameters of the first lifting mechanism 32, the second lifting mechanism 42, the can-discharging cylinder 62, and the indexing servo motor 53.

[0053] The two cans to be sealed 100 are placed on the can-in conveyor belt 11. After the two cans to be sealed 100 reach the rotating part 51, they enter the mold box 52. The indexing servo motor 53 drives the rotating part 51 to rotate clockwise by an angle. Under the guidance of the limiting arc plate, the two cans to be sealed 100 in the mold box 52 stop directly below the aluminum foil storage platform 21. The lifting cylinder 224 drives the third mounting bracket 221 to move the negative pressure distribution pipe 222 back and forth on the outer contour of the cam 223, thereby controlling the negative pressure distribution pipe 222 to rotate 180° back and forth, so that the suction nozzle installed on the negative pressure distribution pipe 222 picks up two aluminum foils on the aluminum foil storage platform 21 and places them at the mouth of the can to be sealed 100.

[0054] The indexing servo motor 53 drives the rotating part 51 to rotate another angle, turning the two cans to be sealed 100 directly below the two pre-sealing soldering irons 33. The first lifting mechanism 32 drives the two pre-sealing soldering irons 33 to pre-seal the aluminum foil covering the cans to be sealed 100.

[0055] The indexing servo motor 53 drives the rotating part 51 to rotate another angle, turning the two cans to be sealed 100 directly below the two final sealing soldering irons 43. The second lifting mechanism 42 drives the two final sealing soldering irons 43 to perform final sealing on the aluminum foil covering the cans to be sealed 100.

[0056] The indexing servo motor 53 drives the rotating part 51 to rotate another angle, and the can-out cylinder 62 removes the sealed can 200 after two sealings from the mold box 52. The can-out conveyor belt 12 then carries the sealed can 200 into the next process.

[0057] It should be noted that the indexing servo motor 53 rotates at the same angle each time, and the angle is equal to the included angle between the two mold boxes 52.

[0058] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. An automatic sealing machine for aluminum foil cans, characterized in that, include: Conveying device (1), the conveying device (1) conveys the tank (100) to be sealed along a first direction; Aluminum foil feeding device (2), the aluminum foil feeding device (2) includes an aluminum foil storage platform (21) and a feeding mechanism (22), a number of aluminum foils are stacked on the aluminum foil storage platform (21), and the feeding mechanism (22) is located below the aluminum foil storage platform (21) for adsorbing aluminum foil and placing aluminum foil at the sealing position of the can to be sealed (100); A primary sealing device (3) is used to pre-seal the can (100) to be sealed with a soldering iron. Secondary sealing device (4), the secondary sealing device (4) is used to perform final sealing of the can (100) to be sealed with a soldering iron; A rotating drive device (5) is rotatably disposed above the conveying device (1). A mold box (52) for accommodating the can (100) to be sealed is disposed on the outer periphery of the rotating drive device (5). The aluminum foil feeding device (2), the primary sealing device (3) and the secondary sealing device (4) are arranged sequentially along the rotation stroke of the rotating drive device (5) and located on one side of the conveying device (1).

2. The automatic sealing machine for aluminum foil cans according to claim 1, characterized in that, A limiting arc plate is provided on one side of the conveying device (1). The limiting arc plate is spaced apart from the rotation drive device (5). The limiting arc plate is used to support the tank to be sealed (100) and limit the tank to be sealed (100) to be located inside the mold box (52).

3. The automatic sealing machine for aluminum foil cans according to claim 1, characterized in that, The primary sealing device (3) includes a first mounting bracket (31), which is located on one side of the conveying device (1). A first lifting mechanism (32) is provided on the first mounting bracket (31), and a pre-sealing soldering iron (33) is provided at the output end of the first lifting mechanism (32). The pre-sealing soldering iron (33) is located above the mold box (52).

4. The automatic sealing machine for aluminum foil cans according to claim 3, characterized in that, The secondary sealing device (4) includes a second mounting bracket (41), which is located on one side of the conveying device (1). A second lifting mechanism (42) is provided on the second mounting bracket (41), and a final sealing soldering iron (43) is provided at the output end of the second lifting mechanism (42). The final sealing soldering iron (43) is located above the mold box (52).

5. The automatic sealing machine for aluminum foil cans according to claim 4, characterized in that, The automatic sealing machine for aluminum foil cans also includes a lifting drive mechanism (7), which includes: Support frame (71); Guide rod (72), the axial direction of the guide rod (72) is arranged in the vertical direction, the guide rod (72) passes through the support frame (71) and is slidably connected to the support frame (71); A lead screw (73) is arranged axially in the vertical direction, and the lead screw (73) passes through the support frame (71) and is threadedly connected to the support frame (71).

6. The automatic sealing machine for aluminum foil cans according to claim 5, characterized in that, The lifting drive mechanism (7) is provided with multiple components, and the first mounting bracket (31), the second mounting bracket (41) and the feeding mechanism (22) are selectively and correspondingly connected to the support frame (71) of the lifting drive mechanism (7).

7. The automatic sealing machine for aluminum foil cans according to claim 1, characterized in that, The feeding mechanism (22) includes: Third mounting bracket (221); A negative pressure distribution pipe (222) is arranged axially in the horizontal direction and rotatably connected to the third mounting bracket (221). Several suction nozzles are provided on the outer periphery of the negative pressure distribution pipe (222). A negative pressure supply device is connected to the negative pressure distribution pipe (222). Cam (223), the cam (223) is disposed at one end of the negative pressure distribution pipe (222), and one end of the negative pressure distribution pipe (222) elastically abuts against the outer contour of the cam (223); A lifting cylinder (224) is provided, the output end of which is connected to the third mounting bracket (221).

8. The automatic sealing machine for aluminum foil cans according to any one of claims 1-7, characterized in that, The rotation drive device (5) includes: The rotating part (51) has a plurality of mold boxes (52) evenly spaced on its outer periphery. The shape and size of the mold boxes (52) match the shape and size of the can body (100) to be sealed. A rotation drive is located below the rotating part (51), and the output end of the rotation drive is coaxially connected to the rotating part (51) to drive the rotating part (51) to rotate.

9. The automatic sealing machine for aluminum foil cans according to claim 8, characterized in that, The conveying device (1) includes an inlet conveyor belt (11) and an outlet conveyor belt (12) arranged along the first direction. The rotating drive is located between the inlet conveyor belt (11) and the outlet conveyor belt (12). The rotating part (51) is located above the inlet conveyor belt (11) and the outlet conveyor belt (12) and its diameter is greater than the gap between the inlet conveyor belt (11) and the outlet conveyor belt (12).

10. The automatic sealing machine for aluminum foil cans according to claim 9, characterized in that, The automatic sealing machine for aluminum foil cans also includes: The can-discharging auxiliary device (6) is located between the can-discharging conveyor belt (12) and the rotating part (51) and is used to push the sealed can body (200) away from the mold box (52) and place it on the can-discharging conveyor belt (12).

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