Improved cigarette package transparent paper end preheating and sealing device

Abstract

The application discloses an improved cigarette transparent paper end preheating and sealing device of a packaging machine, which comprises a folding plate, a detection device and a cigarette pushing mechanism, and further comprises a telescopic device arranged on a base outside a connecting groove, a connecting frame with one end connected with a telescopic rod of the telescopic device, and an electric iron mechanism with one end connected with the other end of the connecting frame, wherein the folding plate is provided with the connecting groove, the detection device is signal-connected with the telescopic device, the detection device is arranged on one side of the cigarette pushing mechanism, the cigarette pushing mechanism is arranged at an inlet end of a cigarette conveying mechanism of the packaging machine, and the detection device is used for monitoring a running track of a cigarette pushing plate.

Description

Technical Field

[0001] This invention relates to a preheating sealing device, specifically an improved preheating sealing device for the end of the transparent paper of cigarette packs in a packaging machine, belonging to the field of cigarette manufacturing technology. Background Technology

[0002] Generally, transparent paper is used in cigarette packaging to prevent cigarettes from getting damp and to prevent the loss of moisture and aroma, as well as to improve the appearance quality of the product. It is a transparent packaging material used to wrap the outside of cigarette packs and cartons.

[0003] Currently, during routine quality inspections, the YB95 transparent paper packaging machine has revealed some quality defects in the transparent paper at the ends of cigarette cartons during folding, lifting, and heat sealing. After folding, the lower long edge of the transparent paper at the ends of the cigarette cartons needs to be lifted upwards by a lifter. During the lifting process, the upper long edge at the end is folded, and finally, the end is heat-sealed to complete the packaging. However, during the lifting process after the lower long edge is folded, it is prone to wrinkling and loosening. Occasionally, the lower long edge may be pulled downwards during the lifting process, resulting in a trailing quality defect. At the same time, in the next end heat sealing process, there may be problems such as insecure heat sealing and substandard sealing. When these problems occur, the moisture and aroma of the cigarettes themselves will be lost, thus affecting the consumer's experience of the cigarette's taste and also affecting the appearance quality of the cigarette cartons.

[0004] Currently, Chinese invention patent CN204527830U discloses a heat-sealing device for the ends of transparent paper in a small box. This device includes a front-end heat-sealing device and a rear-end heat-sealing device, which are arranged in opposite directions on the left and right sides of a small box conveying channel. Both the front-end and rear-end heat-sealing devices include an integrally formed guide plate, a first rectangular heat-sealing plate, and a second rectangular heat-sealing plate. When the small box is conveyed along the small box conveying channel to the guide plate, the front and rear-end heat-sealing devices clamp the front and rear ends of the transparent paper on the small box for positioning. When the small box is conveyed to the first rectangular heat-sealing plate, the front and rear-end heat-sealing devices clamp the front and rear ends of the transparent paper on the small box for pre-heat sealing. When the small box is conveyed to the second rectangular heat-sealing plate, the front and rear-end heat-sealing devices clamp the front and rear ends of the transparent paper on the small box for heat sealing and shaping. However, this invention has the following shortcomings: 1. The guide plate does not have a preheating sealing function; 2. The heat on the guide plate is transferred by the heat radiation of the rectangular heat-sealing plate, so its temperature cannot be guaranteed to be constant. If the temperature is too high, the transparent paper is prone to wrinkling during the guiding process, which will lead to uneven heat sealing of the end face and thus affect the sealing of the small box; 3. The guide plate and the rectangular heat-sealing iron are a whole. When the cigarette pusher pushes the cigarette, both the guide plate and the rectangular heat-sealing iron are in the open state so that the cigarette pack can be pushed smoothly into the heat-sealing channel. When the heat-sealing iron closes, the cigarette pack has already been pushed to the rectangular heat-sealing plate. Therefore, the guide plate does not play the role of squeezing out the gas between the transparent paper and the small box body. Moreover, the design of the cigarette pushing mechanism in the current technology is generally more complex and the cigarette pushing effect is not good. In short, it is often very inconvenient.

[0005] Therefore, the key to solving the above-mentioned technical problems lies in developing an improved, ingeniously designed, practical, and reliable preheating and sealing device for the end of the transparent paper of cigarette packs in packaging machines. Summary of the Invention

[0006] In view of the many defects and shortcomings existing in the above-mentioned background technology, the present invention has made improvements and innovations, aiming to provide a simple and automated improved packaging machine cigarette translucent paper end preheating and sealing device, which can fundamentally solve the quality defects such as wrinkling, looseness, tailing, poor heat sealing, and substandard sealing of translucent paper ends, thereby improving the packaging efficiency of cigarette packs and ensuring quality.

[0007] Another objective of this invention is to increase the flatness and consistency of the hot-sealing on the end face of cigarette packs, reduce the defect rate, and ensure that the quality of the final product meets the requirements.

[0008] To solve the above problems and achieve the above-mentioned objectives, the present invention provides an improved preheating sealing device for the end of the transparent paper of cigarette packs in a packaging machine, which is achieved by adopting the following design structure and the following technical solution:

[0009] As an improvement to the preheating and sealing device for the end of the transparent paper of cigarette packs in the present invention, it includes a folding plate (1), a detection device (2), and a cigarette pushing mechanism that works in conjunction with them, and further includes:

[0010] Telescopic device (3) is installed on the base (6) outside the connecting groove (11);

[0011] Connecting frame (4) is set between telescopic device (3) and connecting groove (11), and one end of connecting frame (4) is connected to telescopic rod (31) of telescopic device (3);

[0012] Soldering iron mechanism (5), one end of the soldering iron mechanism (5) is connected to the other end of the connecting frame (4);

[0013] The folding plate (1) is provided with a connecting groove (11); the detection device (2) and the telescopic device (3) are connected by a signal; the detection device (2) is set on one side of the cigarette pushing mechanism, the cigarette pushing mechanism is set at the inlet end of the cigarette conveying mechanism of the packaging machine, the cigarette pushing mechanism reciprocates under the drive of the driving equipment, and is used to push the cigarette to the area to be preheated and sealed for preheating and sealing;

[0014] The detection device (2) is used to monitor the running trajectory of the smoke pusher (7).

[0015] As an improvement of the present invention, the connecting groove (11) is provided in a figure-eight shape at one end of the folding plate (1), wherein the connecting groove (11) is a rectangular hole;

[0016] The smoke pushing mechanism includes a smoke pushing plate (7), which is slidably connected to the smoke pushing plate connecting seat (71);

[0017] A smoke-pushing working part is connected to the working end of the smoke-pushing plate (7). The smoke-pushing working part is a concave plate-shaped structure with a groove in the middle of the upper end.

[0018] As a further improvement of the present invention, the telescopic device (3) is fixedly or movably connected to the connecting plate of the base (6), wherein the telescopic device (3) is a cylinder and a solenoid valve is connected to the cylinder.

[0019] As a further improvement of the present invention, the connecting frame (4) includes:

[0020] Connecting seats (41) are symmetrically arranged in pairs on the connecting plate of the base (6);

[0021] The four-bar structure has its lower end rotatably connected to the connecting seat (41).

[0022] As a further improvement of the present invention, the four-bar structure includes:

[0023] A fixing frame (42) is provided, one end of which is connected to the soldering iron mechanism (5).

[0024] The first connecting shaft (43) is rotatably connected between two connecting seats (41) near the soldering iron mechanism (5);

[0025] Two first connecting rods (44) are connected at their lower ends to the two ends of the first connecting shaft (43) respectively, and at their upper ends to the fixed frame (42).

[0026] The second connecting shaft (45) is rotatably connected between two connecting seats (41) near the telescopic device (3);

[0027] Two second connecting rods (46) are provided. The lower ends of the two second connecting rods (46) are respectively connected to the two ends of the second connecting shaft (45), and the upper ends of the two second connecting rods (46) are rotatably connected to the fixed frame (42).

[0028] The rocker arm (47) is slidably connected between two second connecting rods (46).

[0029] As a further improvement of the present invention, the middle section of the second connecting rod (46) is provided with a groove for connecting the rocker arm (47);

[0030] The middle part of the rocker arm (47) is connected to the telescopic rod (31).

[0031] As a further improvement of the present invention, the fixing frame (42) is in the form of a ladder shape. The fixing frame (42) includes horizontal bars arranged opposite to each other and rotating rods symmetrically rotatably connected between the two horizontal bars. The upper ends of the two first connecting rods (44) and the upper ends of the two second connecting rods (46) are respectively connected to the corresponding rotating rods.

[0032] As a further improvement of the present invention, the detection device (2) is a proximity switch;

[0033] One end of the telescopic rod (31) is rotatably connected to the rocker arm (47) via a hemispherical component.

[0034] As a further improvement to the present invention, the soldering iron mechanism (5) includes:

[0035] Soldering iron body (51), one end of which is connected to the fixing frame (42);

[0036] Heating rod (52) is connected to the other end of soldering iron body (51);

[0037] The temperature measuring platinum resistance thermometer is set inside the soldering iron body (51);

[0038] The heating rod (52) is connected to the other end of the soldering iron body (51) in a figure-eight shape. The heating rod (52) passes through the connecting groove (11) and contacts the transparent paper (8) of the cigarette pack to complete the heat sealing work.

[0039] As a further improvement to the present invention, a method for using an improved preheating and sealing device for the end of the transparent paper of cigarette packs in a packaging machine is provided, the method comprising the following steps:

[0040] S1, after the cigarette pack (9) is packaged by the upstream CT packaging machine, it is sent to the first elevator through the cigarette pack conveying channel. At this time, the transparent paper (8) and the pull wire conveying and cutting device cut the transparent paper (8) and the pull wire into a single transparent paper with a pull wire. The clamping device clamps the transparent paper (8) to the top of the first elevator. The first elevator lifts the cigarette pack (9) and the transparent paper (8) together, so that the single transparent paper (8) forms a U-shaped package. When it is lifted to the highest position, the cigarette pusher (7) pushes the cigarette pack (9) with the transparent paper (8) to the right. During the pushing process, the folding of the long sides of the cigarette pack transparent paper (8) at both ends and the folding of the short sides at both ends are gradually completed.

[0041] S2, another cigarette (9) pushed by the cigarette pusher (7) is gradually pushed to the right. When it is pushed above the second lifter, the soldering iron mechanism (5) begins to heat seal the front and rear short sides and the lower long side of the end of the transparent paper (8) of the cigarette, quickly completing the pre-heat sealing of the lower part of the end.

[0042] S3, after the pre-hot sealing is completed, the second lifter lifts upwards. During the lifting process, the folding and hot sealing process of the long sides of both ends of the cigarette transparent paper (8) is completed. At this point, the packaging process of the transparent paper (8) is completely finished.

[0043] The working principle is as follows: When in use, the cigarette pack (9) is packaged by the upstream CT packaging machine and then sent to the first elevator through the cigarette pack conveying channel. At this time, the transparent paper (8) and the pull wire conveying and cutting device cut the transparent paper (8) and the pull wire into single transparent paper sheets with pull wires. The clamping device clamps the transparent paper (8) and sends it to the top of the first elevator. The first elevator lifts the cigarette pack (9) and the transparent paper (8) together, so that the single transparent paper (8) forms a U-shaped package. When it is lifted to the highest position, the cigarette pusher plate (7) pushes the cigarette pack (9) with the transparent paper (8) to the right. During the pushing process, the cigarette pack (9) with the transparent paper (8) is gradually lifted to the right. After completing the folding of the long lower sides of the cigarette paper (8) and the folding of the short front and back sides of the two ends, another cigarette (9) pushed by the cigarette pusher (7) is gradually pushed to the right. When it is pushed above the second lifter, the soldering iron mechanism (5) begins to heat seal the short front and back sides and the long lower side of the cigarette paper (8) at that end, quickly completing the pre-heat sealing of the lower part of that end. Finally, after the pre-heat sealing is completed, the second lifter is lifted upwards. During the lifting process, the folding and heat sealing of the long upper sides of the cigarette paper (8) at both ends is completed. At this point, the packaging process of the transparent paper (8) is completely finished.

[0044] The beneficial effects of this invention compared to the prior art are:

[0045] 1. The present invention has a simple structure, is practical and reliable, and can fundamentally solve quality defects such as wrinkling, looseness, trailing, poor heat sealing, and substandard sealing of the ends of transparent paper strips;

[0046] 2. The soldering iron mechanism of the present invention can maintain the temperature at a constant value, thereby increasing the flatness and consistency of the hot sealing of the cigarette end face, reducing the defect rate, and ensuring that the quality of the final product meets the requirements.

[0047] 3. The present invention pre-seals the transparent paper, which can ensure that the transparent paper of the cigarette pack will not slide or misalign when it is lifted by the second lifter, thus eliminating the looseness and wrinkles of the transparent paper and improving the packaging efficiency and quality of the cigarette pack.

[0048] 4. This invention can operate automatically, ensuring consistency in product quality and production process, thereby improving production efficiency and work efficiency, and reducing labor costs;

[0049] 5. Because the present invention is equipped with a cigarette pushing mechanism that works in conjunction with it, the cigarette pushing mechanism has a simple structure and a novel and reasonable design. By using the cigarette pushing mechanism in conjunction with the upstream control equipment in the existing structure, it is possible to reliably and safely push the cigarette packs to the designated work area and automatically push the produced cigarette packs to the next process, saving the time and labor costs of manual operation and improving production efficiency. Attached Figure Description

[0050] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings, wherein:

[0051] Figure 1 This is one of the usage state diagrams of the present invention;

[0052] Figure 2 This is the second usage state diagram of the present invention;

[0053] Figure 3 This is the third usage state diagram of the present invention;

[0054] Figure 4 This is the fourth diagram showing the usage state of the present invention;

[0055] Figure 5 This is the fifth diagram showing the usage state of the present invention;

[0056] Figure 6 This is a partial structural schematic diagram of the present invention;

[0057] Figure 7 This is one of the current usage status diagrams of the transparent paper packaging machine for cigarettes;

[0058] Figure 8 This is the second illustration showing the current usage status of the cigarette transparent paper packaging machine;

[0059] In the figure, the numbers are: 1—folding plate, 11—connecting groove;

[0060] 2—Detection device;

[0061] 3—Telescopic device; 31—Telescopic rod;

[0062] 4—Connecting frame, 41—Connecting seat, 42—Fixed frame, 43—First connecting shaft, 44—First connecting rod, 45—Second connecting shaft, 46—Second connecting rod, 47—Rocker;

[0063] 5—Soldering iron mechanism, 51—Soldering iron body, 52—Heating rod;

[0064] 6—Equipment base;

[0065] 7—Smoke pusher plate, 71—Smoke pusher plate connecting seat;

[0066] 8—Transparent paper;

[0067] 9 packs of cigarettes. Detailed Implementation

[0068] To make the technical means, inventive features, objectives, and effects of this invention readily understandable, the technical solution of this invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other. The invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0069] As per the instruction manual Figure 1 To the instruction manual Figure 6 An improved preheating and sealing device for the end of the transparent paper of a pack of cigarettes, as shown, includes a folding plate 1, a detection device 2, and a cigarette pushing mechanism that works in conjunction with them. It also includes:

[0070] Telescopic device 3 is installed on the base 6 outside the connecting groove 11;

[0071] Connecting frame 4 is disposed between telescopic device 3 and connecting groove 11, and one end of connecting frame 4 is connected to telescopic rod 31 of telescopic device 3;

[0072] Soldering iron mechanism 5, one end of which is connected to the other end of connecting bracket 4;

[0073] The folding plate 1 is provided with a connecting groove 11; the detection device 2 and the telescopic device 3 are connected by a signal; the detection device 2 is set on one side of the cigarette pushing mechanism, and the cigarette pushing mechanism is set at the inlet end of the cigarette conveying mechanism of the packaging machine. The cigarette pushing mechanism reciprocates under the drive of the driving equipment to push the cigarettes to the preheating and sealing area for preheating and sealing.

[0074] The detection device 2 is used to monitor the running trajectory of the smoke pusher plate 7.

[0075] In this invention, the detection device 2 is an existing structure, and any commercially available device that can be used to implement the function of this invention can be used in this invention. The detection device 2 can also be a PLC, a programmable logic controller, or a PC. The detection device 2 is set above one end of the equipment base 6.

[0076] Furthermore, such as Figure 3 As shown, the connecting groove 11 is formed in the shape of an "eight" and is opened through one end of the folding plate 1. The connecting groove 11 is a rectangular hole.

[0077] The smoke pushing mechanism includes a smoke pushing plate 7, which is slidably connected to a smoke pushing plate connecting seat 71.

[0078] A smoke-pushing working part is connected to the working end of the smoke-pushing plate 7. The smoke-pushing working part is a concave plate-shaped structure with a groove in the middle of the upper end.

[0079] In the invention, the smoke pusher plate 7 is a long plate-shaped structure; the connecting grooves 11 are all rectangular holes, and the two rectangular holes are connected in a figure-eight shape on the folding plate 1.

[0080] In this invention, the detection device 2 is located above one end of the equipment base 6 and is disposed on one side of the smoke pusher plate 7. When the detection device 2 detects that the non-smoke pusher end of the smoke pusher plate 7 has reached the smoke pusher plate connecting seat 71, the detection device 2 immediately sends a signal to the solenoid valve of the telescopic device 3. The detection device 2 determines the specific position at which the smoke pusher plate 7 is detected based on the pause time and / or reset time when the smoke pusher plate 7 reaches the rightmost end, the preheating sealing effect time of the soldering iron mechanism 5, and the start time of the second lifting mechanism, and then sends a turning signal to the soldering iron mechanism 5.

[0081] Furthermore, such as Figures 1 to 3 As shown, the telescopic device 3 is fixedly or movably connected to the connecting plate of the base 6. The telescopic device 3 is a cylinder, and a solenoid valve is connected to the cylinder.

[0082] Furthermore, such as Figure 5 and Figure 6 As shown, the connecting frame 4 includes:

[0083] Connecting seats 41 are symmetrically arranged in pairs on the connecting plate of the base 6;

[0084] The four-bar structure has its lower end rotatably connected to the connecting seat 41.

[0085] Specifically, such as Figure 6 As shown, the four-bar structure includes:

[0086] Fixture 42, one end of which is connected to soldering iron mechanism 5;

[0087] The first connecting shaft 43 is rotatably connected between two connecting seats 41 near the side of the soldering iron mechanism 5;

[0088] Two first connecting rods 44, the lower ends of which are respectively connected to the two ends of the first connecting shaft 43, and the upper ends of which are rotatably connected to the fixed frame 42.

[0089] The second connecting shaft 45 is rotatably connected between two connecting seats 41 near the telescopic device 3.

[0090] Two second connecting rods 46, the lower ends of which are respectively connected to the two ends of the second connecting shaft 45, and the upper ends of which are rotatably connected to the fixed frame 42.

[0091] The joystick 47 is slidably connected between the two second connecting rods 46.

[0092] More specifically, such as Figure 6 As shown, the middle section of the second connecting rod 46 is provided with a groove for connecting the rocker arm 47.

[0093] The middle part of the rocker arm 47 is connected to the telescopic rod 31.

[0094] More specifically, such as Figure 6 As shown, the fixing frame 42 has an overall ladder-shaped structure. The fixing frame 42 includes horizontal bars arranged opposite each other and rotating rods symmetrically rotatably connected between the two horizontal bars. The upper ends of the two first connecting rods 44 and the upper ends of the two second connecting rods 46 are respectively connected to the corresponding rotating rods.

[0095] Furthermore, such as Figure 1 As shown, the detection device 2 is a proximity switch;

[0096] One end of the telescopic rod 31 is rotatably connected to the rocker arm 47 via a hemispherical component.

[0097] Furthermore, such as Figure 6 As shown, the soldering iron mechanism 5 includes:

[0098] Soldering iron body 51, one end of which is connected to the fixing frame 42;

[0099] Heating rod 52, which is connected to the other end of soldering iron body 51;

[0100] The temperature-measuring platinum resistance thermometer is located inside the soldering iron body 51.

[0101] The heating rod 52 is connected to the other end of the soldering iron body 51 in a figure-eight shape. The heating rod 52 passes through the connecting groove 11 and contacts the transparent paper 8 of the cigarette pack to complete the heat sealing work.

[0102] Furthermore, a method for using an improved preheating and sealing device for the end of the transparent paper of cigarette packs in a packaging machine, the method comprising the following steps:

[0103] S1, after the cigarette pack 9 is packaged by the upstream CT packaging machine, it is sent to the first elevator through the cigarette pack conveying channel. At this time, the transparent paper 8 and the pull wire conveying and cutting device cut the transparent paper 8 and the pull wire into single transparent paper sheets with pull wires. The clamping device clamps the transparent paper 8 and sends it to the top of the first elevator. The first elevator lifts the cigarette pack 9 and the transparent paper 8 together, so that the single transparent paper 8 forms a U-shaped package. When it is lifted to the highest position, the cigarette pusher plate 7 pushes the cigarette pack 9 with the transparent paper 8 to the right. During the pushing process, the folding of the long lower sides of the cigarette pack transparent paper 8 at both ends and the folding of the short front and rear sides at both ends are gradually completed.

[0104] S2, another cigarette 9 pushed by the cigarette pusher 7 is gradually pushed to the right. When it is pushed above the second lifter, the soldering iron mechanism 5 begins to heat seal the front and rear short sides and the lower long side of the end of the transparent paper 8 of the cigarette 9, quickly completing the pre-heat sealing of the lower part of the end.

[0105] S3, after the pre-sealing is completed, the second lifter lifts upwards, and during the lifting process, the long sides of both ends of the transparent paper 8 are folded and sealed. At this point, the packaging process of the transparent paper 8 is completed.

[0106] In summary, a more specific embodiment of the present invention is as follows:

[0107] Before use, the improved packaging machine cigarette transparent paper end preheating sealing device with the above design structure needs to be manufactured and installed as a backup.

[0108] The specific steps for using it are:

[0109] like Figures 1-4 As shown, when in use, the detection device 2 is installed on the equipment base 6. When the smoke pusher 7 is at the initial leftmost end, the detection device 2 cannot detect the end of the smoke pusher, the solenoid valve connected to the telescopic device 3 will not switch, and the rodless chamber of the telescopic device 3 will not be supplied with positive compressed air, so the preheating sealing device will not operate.

[0110] When the first lifter raises the cigarette pack 9 with the transparent paper to its highest position, the pusher plate 7 begins to push the cigarette to the right. When the pusher plate 7 reaches its rightmost end, there is a pause, meaning there is a pause when the pusher plate 7 pushes the cigarette pack 9 into the second lifter before the second lifter begins its lifting action. When the detection device 2 detects that the end of the pusher plate 7 has entered the pusher plate connecting seat 71, the detection device 2 immediately sends a solenoid valve reversing signal to the telescopic device 3. Compressed air is introduced into the rodless chamber of the telescopic device 3, and the compressed air drives the telescopic rod 31 to extend, thereby driving the connecting rod 31 to extend the connecting rod 31. The receiving frame 4 moves forward, and under the movement of the fixed frame 42 of the four-bar mechanism, the heating rod 52 at the end of the soldering iron mechanism 5 is driven to pass through the pre-opened connecting groove 11 on the folding plate 1 to pre-seal the front and rear short sides and the lower long side of the folded transparent paper 8, making the front and rear short sides and the lower long side of the transparent paper 8 into a whole. In this way, when the second lifter lifts again, this pre-sealed whole will not slip or misalign, thus preventing the cigarette pack 9 from becoming loose and wrinkled, thereby increasing the flatness and consistency of the cigarette pack end sealing, reducing the defect rate, and ensuring that the quality of the final product meets the requirements.

[0111] During the above-mentioned use, the signal sent by the detection device 2 to the solenoid valve is basically equivalent to a pulse signal, that is, the preheating and sealing action of the telescopic device 3 is between 0.5 seconds and 1 second. Specifically, it depends on the time it takes for the pusher plate 7 to completely push the cigarette 9 into the second lifter and the effect of the preheating and sealing to determine the pulse time. When the preheating and sealing effect is good, the pulse signal is shorter and the cylinder telescopic action returns immediately. Because the telescopic device 3 is a single-acting cylinder, its return is accomplished by the force of its own compression spring. If the preheating and sealing effect is not good, the pulse signal is readjusted to make the cylinder preheating and sealing time slightly longer until the preheating and sealing process requirements can be met.

[0112] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the protection scope of the present invention.

Claims

1. An improved preheating and sealing device for the end of the transparent paper of a pack of cigarettes in a packaging machine, comprising a folding plate (1), a detection device (2), and a cigarette pushing mechanism that works in conjunction with the folding plate (1) to complete the operation, characterized in that, Also includes: Telescopic device (3) is set on the base (6) outside the connecting groove (11); Connecting frame (4) is set between telescopic device (3) and connecting groove (11), and one end of connecting frame (4) is connected to telescopic rod (31) of telescopic device (3); Soldering iron mechanism (5), one end of the soldering iron mechanism (5) is connected to the other end of the connecting frame (4); The folding plate (1) is provided with a connecting groove (11); the detection device (2) and the telescopic device (3) are connected by a signal; the detection device (2) is set on one side of the cigarette pushing mechanism, the cigarette pushing mechanism is set at the inlet end of the cigarette conveying mechanism of the packaging machine, the cigarette pushing mechanism reciprocates under the drive of the driving equipment, and is used to push the cigarette to the preheating and sealing area for preheating and sealing; The detection device (2) is used to monitor the running trajectory of the smoke pusher (7); The two connecting slots (11) are connected in a figure-eight shape at one end of the folding plate (1), wherein the connecting slots (11) are rectangular holes; The smoke pushing mechanism includes a smoke pushing plate (7), which is slidably connected to the smoke pushing plate connecting seat (71); A smoke-pushing working part is connected to the working end of the smoke-pushing plate (7). The smoke-pushing working part is a concave plate-shaped structure with a groove in the middle of the upper end. The connecting frame (4) includes: Connecting seats (41) are symmetrically arranged in pairs on the connecting plate of the base (6); The four-bar structure has its lower end rotatably connected to the connecting seat (41); The four-bar structure includes: A fixing frame (42) is provided, one end of which is connected to the soldering iron mechanism (5). The first connecting shaft (43) is rotatably connected between two connecting seats (41) near the side of the soldering iron mechanism (5); Two first connecting rods (44) are connected at their lower ends to the two ends of the first connecting shaft (43) respectively, and the upper ends of the two first connecting rods (44) are rotatably connected to the fixed frame (42). The second connecting shaft (45) is rotatably connected between two connecting seats (41) near the telescopic device (3); Two second connecting rods (46) are connected at their lower ends to the two ends of the second connecting shaft (45) respectively, and at their upper ends to the fixed frame (42). The rocker arm (47) is slidably connected between two second connecting rods (46); The middle section of the second connecting rod (46) is provided with a groove for connecting the rocker arm (47); The middle part of the rocker arm (47) is connected to the telescopic rod (31); The fixing frame (42) is generally in the shape of a ladder. The fixing frame (42) includes horizontal bars arranged opposite to each other and rotating rods symmetrically rotatably connected between the two horizontal bars. The upper ends of the two first connecting rods (44) and the upper ends of the two second connecting rods (46) are respectively connected to the corresponding rotating rods. The soldering iron mechanism (5) includes: Soldering iron body (51), one end of soldering iron body (51) is connected to the fixing frame (42); Heating rod (52) is connected to the other end of soldering iron body (51); The temperature measuring platinum resistance thermometer is set inside the soldering iron body (51); Two heating rods (52) are connected in a figure-eight shape to the other end of the soldering iron body (51). The heating rods (52) pass through the connecting groove (11) and contact the transparent paper (8) of the cigarette pack to complete the heat sealing work.

2. The improved preheating and sealing device for the end of the transparent paper of cigarette packs in a packaging machine according to claim 1, characterized in that, The telescopic device (3) is fixedly or movably connected to the connecting plate of the base (6), wherein the telescopic device (3) is a cylinder and a solenoid valve is connected to the cylinder.

3. The improved preheating and sealing device for the end of the transparent paper of cigarette packs according to claim 1, characterized in that, The detection device (2) is a proximity switch; One end of the telescopic rod (31) is rotatably connected to the rocker arm (47) via a hemispherical component.

4. A method of using an improved preheating and sealing device for the end of the transparent paper of a pack of cigarettes in a packaging machine according to any one of claims 1 to 3, characterized in that: The method includes the following steps: S1, after the cigarette pack (9) is packaged by the upstream CT packaging machine, it is sent to the first elevator through the cigarette pack conveying channel. At this time, the transparent paper (8) and the pull wire conveying and cutting device cut the transparent paper (8) and the pull wire into a single transparent paper with a pull wire. The clamping device clamps the transparent paper (8) to the top of the first elevator. The first elevator lifts the cigarette pack (9) and the transparent paper (8) together, so that the single transparent paper (8) forms a U-shaped package. When it is lifted to the highest position, the cigarette pusher (7) pushes the cigarette pack (9) with the transparent paper (8) to the right. During the pushing process, the folding of the long sides of the transparent paper (8) at both ends and the folding of the short sides at both ends are gradually completed. S2, another cigarette (9) pushed by the cigarette pusher (7) is gradually pushed to the right. When it is pushed above the second lifter, the soldering iron mechanism (5) begins to heat seal the front and rear short sides and the lower long side of the corresponding end of the cigarette transparent paper (8), and quickly completes the lower part of the end preheating seal. S3, after the preheating and sealing are completed, the second lifter is lifted upwards. During the lifting process, the folding and heat sealing of the long sides of the two ends of the transparent paper (8) are completed. At this point, the packaging process of the transparent paper (8) is completely finished.

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