A glue gun positioning device of a cigarette packaging machine

Abstract

The utility model belongs to cigarette packaging technical field discloses a kind of glue gun positioning device of cigarette packer, including support plate and first, second limiting rod being installed in transmission mechanism;Transmission mechanism includes first, second, third support rod, first support rod is fixed on rack, second support rod is rotatably connected on rack, and other end fixed glue gun;Second support rod is fixed third support rod by transmission plate;Swing arm air cylinder two ends are rotatably connected on first, third support rod;First limiting rod is fixed in first support rod far from rack one end;Second limiting rod is fixed in third support rod far from rack one end;Support plate both ends are open through hole and are set on first and second limiting rod, and the side wall on the through hole of second limiting rod is threadedly connected screw;The interval of through hole is equal to the interval of the center of two limiting rods when glue gun is at cleaning position.Support plate limits third support rod movement, and screw limits second limiting rod rotation, so that glue gun is fixed at cleaning position and does not fall.

Description

Technical Field

[0001] This utility model belongs to the field of cigarette packaging technology, specifically relating to a glue spray gun positioning device for a cigarette packaging machine. Background Technology

[0002] The statements in this section are merely background information related to this utility model and do not necessarily constitute prior art.

[0003] In tobacco production, the label paper of cigarette packaging needs to be glued. The traditional method involves using a glue roller to apply white latex from a glue cylinder onto the carton paper. This method has the following problems: latex easily accumulates on the glue roller surface, the glue application is uneven, there is significant latex waste, and it is difficult to clean. Existing technology discloses a glue spraying device for cigarette carton paper, including a glue gun assembly, a glue gun holder, a swing arm, a double cylinder, a first support, a sliding cylinder, a second support, and a glue gun moisturizing and cleaning device. The sliding cylinder and the double cylinder are controlled to direct the nozzle of the glue gun unit directly at the carton paper for glue spraying. Then, the sliding cylinder and the double cylinder are controlled to bring the nozzle of the glue gun unit into contact with the first and second sponge rollers, cleaning the nozzle and keeping it moist. This avoids latex accumulation on the nozzle and allows for easy cleaning of the nozzle.

[0004] Currently used cigarette packaging machines (such as the ZB48 cigarette packaging machine, which uses a V400 type 8-head spray gun) also use this type of glue spray gun driven by a swing arm cylinder. During operation, the swing arm cylinder retracts, and the spray gun rotates to the working position. When a label paper passes by, the spray nozzle opens to spray glue. When no label paper passes by, the solenoid valve does not activate, and the ejector pin moves downward under the action of the spring force to block the spray nozzle and prevent glue leakage. When the equipment stops, the swing arm cylinder rebounds, and the spray gun rotates to the cleaning position. A rotating glue cleaning roller cleans the spray nozzle on the spray gun and keeps the spray nozzle moist, preventing the glue from solidifying and clogging the spray nozzle due to prolonged shutdown.

[0005] However, the above solution has the following drawbacks: When the cigarette packaging machine is shut down for final production, all power and compressed air must be turned off. This causes the swing arm cylinder controlling the spray gun to malfunction without compressed air. The spray gun, driven by its own gravity, moves away from the cleaning position and hangs in a semi-drooping state. As a result, the glue cleaning roller cannot clean the nozzle or keep it moist, causing the glue at the nozzle to solidify and clog it. When production resumes, the clogged nozzles must be cleaned and unblocked. If the glue is severely solidified, the entire set of nozzles must be replaced. Utility Model Content

[0006] In view of this, the purpose of this utility model is to provide a glue spray gun positioning device for a cigarette packaging machine, which can solve the technical problem in the prior art that when the power and compressed air of the cigarette packaging machine are turned off, the spray gun will leave the cleaning position, causing the glue to clog the spray nozzle.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: A glue gun positioning device for a cigarette packaging machine includes a support plate and a first limiting rod and a second limiting rod mounted on a transmission mechanism; The transmission mechanism includes a first support rod, a second support rod, and a third support rod. The first support rod is fixedly connected to the frame. One end of the second support rod is rotatably connected to the frame, and the other end is fixedly connected to the glue gun. A transmission plate is fixedly connected to the second support rod, and the top of the transmission plate is fixedly connected to the third support rod. One end of the swing arm cylinder is rotatably connected to the first support rod, and the other end is rotatably connected to the third support rod. The first limiting rod is fixedly connected to the end of the first support rod away from the frame; the second limiting rod is fixedly connected to the end of the third support rod away from the frame. Through holes are opened at both ends of the support plate and fitted onto the first and second limiting rods. The second limiting rod is threaded with screws on the side wall of the corresponding through hole. The spacing between the through holes is equal to the distance between the center of the second limiting rod and the center of the first limiting rod when the glue gun is in the cleaning position.

[0008] Preferably, a limiting hole is provided at one end of the support plate, and a U-shaped groove is provided at the other end. A first threaded hole is provided on the side of the U-shaped groove away from the limiting hole, and a ball screw is connected to the internal thread of the first threaded hole.

[0009] Preferably, the diameter of the limiting hole is equal to the diameter of the first limiting rod, and the width of the U-shaped groove is equal to the diameter of the second limiting rod.

[0010] Preferably, the distance between the center of the limiting hole and the center of the U-shaped groove is the same as the distance between the center of the second limiting rod and the center of the first limiting rod when the glue gun is in the cleaning position.

[0011] Preferably, the ball screw includes a hollow screw body, one end of which is closed and has an internal hexagonal screw hole, and the other end is open. One end of the spring is fixedly connected to the closed end inside the screw body, and the other end is fixedly connected to the ball.

[0012] Preferably, the diameter of the open end of the screw body is smaller than the diameter of the ball, and the diameter of the screw body is equal to the diameter of the ball.

[0013] Preferably, the end of the second limiting rod away from the third support rod is fixedly connected to the limiting plate, and a limiting groove is formed between the limiting plate and the third support rod.

[0014] Preferably, the length of the first limiting rod is greater than the length of the second limiting rod.

[0015] Preferably, the third support rod has a second threaded hole at the end facing away from the frame, and the end of the second limiting rod away from the limiting plate is designed as a threaded segment. The external thread of the threaded segment matches the internal thread in the second threaded hole, and the length of the threaded segment is less than the depth of the second threaded hole.

[0016] Preferably, a baffle is fixedly connected to the second limiting rod, and there is a smooth section between the limiting plate and the baffle, the length of which is equal to the thickness of the support plate.

[0017] Compared with the prior art, the advantages and positive effects of this utility model are: This invention fixes a first limiting rod to the end of a first support rod furthest from the frame, and a second limiting rod to the end of a third support rod furthest from the frame. A support plate with through holes at both ends is fitted onto the first and second limiting rods. Screws are threaded onto the sidewall of the corresponding through hole on the second limiting rod. The distance between the through holes at both ends of the support plate is equal to the distance between the center of the second limiting rod and the center of the first limiting rod when the glue gun is in the correct cleaning position. When the equipment is finished and production is stopped, the support plate restricts the spatial position of the third support rod. Tightening the screws causes the screws to press against the second limiting rod, restricting its rotation relative to the support plate. This restricts the rotation of the glue gun, keeping it fixed in the cleaning position and preventing it from falling. This ensures the glue nozzle remains moist, preventing the glue from solidifying and clogging the nozzle. Attached Figure Description

[0018] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0019] Figure 1 This is an assembly diagram of a glue spraying gun positioning device and a glue spraying gun for a cigarette packaging machine according to an embodiment of this utility model. Figure 2 This is a diagram showing the cooperation between a glue gun positioning device and a glue gun in a cigarette packaging machine according to an embodiment of this utility model. Figure 3 This is a schematic diagram showing the installation positions of the first limiting rod and the second limiting rod in an embodiment of this utility model; Figure 4 This is a schematic diagram of the support plate according to an embodiment of the present utility model; Figure 5 This is a schematic diagram of the ball catch screw according to an embodiment of the present utility model; Figure 6 This is an exploded view of the ball catcher screw according to an embodiment of the present invention; Figure 7 This is a schematic diagram of the second limiting rod according to an embodiment of the present utility model; In the picture: 1. Swing arm cylinder; 11. First end; 12. Second end; 13. First support rod; 2. Glue gun; 21. Second support rod; 22. Transmission plate; 23. Third support rod; 3. Support plate; 31. Limiting hole; 32. U-shaped groove; 33. First threaded hole; 4. First limiting rod; 5. Second limiting rod; 51. Smooth section; 52. Threaded section; 53. Baffle plate; 6. Limiting plate; 7. Ball screw; 71. Spring; 72. Ball; 8. Frame. Detailed Implementation

[0020] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0021] The present invention will now be described in detail with reference to the accompanying drawings. This embodiment discloses a glue gun positioning device for a cigarette packaging machine, such as... Figure 1 , Figure 2 , Figure 3 As shown, it includes a support plate 3, a first limiting rod 4, and a second limiting rod 5; the support plate 3, the first limiting rod 4, and the second limiting rod 5 are all installed on the transmission mechanism of the swing arm cylinder 1 and the glue spray gun 2 of the cigarette packaging machine.

[0022] Specifically, such as Figure 1 , Figure 2 , Figure 3 As shown, the transmission mechanism includes a first support rod 13, a second support rod 21, and a third support rod 23. The first support rod 13 is fixedly connected (e.g., welded) to the frame 8 of the cigarette packaging machine, and the second support rod 21 is rotatably connected to the frame 8 of the cigarette packaging machine. Both the first support rod 13 and the second support rod 21 are set perpendicular to the frame 8.

[0023] In this embodiment, the glue gun 2 is fixedly connected (e.g., welded) to the end of the second support rod 21 away from the frame 8, and the glue gun 2 is perpendicular to the second support rod 21; the bottom of the transmission plate 22 is fixedly connected (e.g., welded) to the second support rod 21, and the top of the transmission plate 22 is fixedly connected (e.g., welded) to the third support rod 23. The first end 11 of the swing arm cylinder 1 is rotatably connected to the first support rod 13, and the second end 12 is rotatably connected to the end of the third support rod 23 facing the frame 8.

[0024] Understandably, when the swing arm cylinder 1 extends, the second end 12 of the swing arm cylinder 1 pushes the third support rod 23, and drives the transmission plate 22 and the second support rod 21 to rotate counterclockwise relative to the frame 8, thereby raising the glue gun 2 upward; when the swing arm cylinder 1 retracts, the second end 12 of the swing arm cylinder 1 pulls the third support rod 23, and drives the transmission plate 22 and the second support rod 21 to rotate clockwise relative to the frame 8, thereby lowering the glue gun 2 downward.

[0025] In this embodiment, as Figure 1 , Figure 2 , Figure 3 As shown, the first limiting rod 4 is fixedly connected to the end of the first support rod 13 away from the frame 8, and the first limiting rod 4 is coaxially arranged with the first support rod 13; the second limiting rod 5 is fixedly connected to the end of the third support rod 23 away from the frame 8.

[0026] In this embodiment, as Figure 3 As shown, through holes are opened at both ends of the support plate 3. One end of the support plate 3 is fitted onto the first limiting rod 4, and the other end is fitted onto the second limiting rod 5. The second limiting rod 5 is connected to a screw threaded on the side wall of the corresponding through hole. Tightening the screw will cause the screw to press against the second limiting rod 5, restricting the movement or rotation of the second limiting rod 5 relative to the support plate 3, thereby restricting the rotation of the glue gun 2.

[0027] In this embodiment, the distance between the through holes at both ends of the support plate 3 is equal to the distance between the center of the second limiting rod 5 and the center of the first limiting rod 4 when the glue gun 2 is in the correct cleaning position, thereby ensuring that the glue gun 2 is positioned in the cleaning position.

[0028] When the cigarette packaging machine is shut down for final production, all power and compressed air are turned off. Without compressed air support, the swing arm cylinder 1 is in a disabled state. At this time, the support plate 3 restricts the spatial position of the third support rod 23, and the screws restrict the rotation and movement of the second limit rod 5, thereby restricting the rotation of the transmission plate 22 and the second support rod 21, thus fixing the glue gun 2 in the clean position and preventing it from falling. This ensures the glue nozzle remains moist, preventing the glue from solidifying and clogging the nozzle.

[0029] Specifically, such as Figure 4 As shown, a limiting hole 31 is opened at one end of the support plate 3, and a U-shaped groove 32 is opened at the other end of the support plate 3. A first threaded hole 33 is opened on the side of the U-shaped groove 32 away from the limiting hole 31, and a ball screw 7 is connected to the internal thread of the first threaded hole 33.

[0030] It is understandable that in this embodiment, the other end of the support plate 3 is designed as a U-shaped groove 32 because after the limiting hole 31 is fitted onto the first limiting rod 4, the support plate 3 can be rotated with the limiting hole 31 as the fulcrum, and the U-shaped groove 32 can be locked onto the second limiting rod 5, which facilitates the installation and disassembly of the support plate 3.

[0031] In this embodiment, as Figure 4 As shown, the diameter of the limiting hole 31 is equal to the diameter of the first limiting rod 4, and the width of the U-shaped groove 32 is equal to the diameter of the second limiting rod 5. The limiting hole 31 of the support plate 3 is fitted onto the first limiting rod 4, and the U-shaped groove 32 is secured onto the second limiting rod 5. A ball screw 7 is threaded into the first threaded hole 33, and the ball screw 7 is tightened so that the top of the ball screw 7 presses against the second limiting rod 5.

[0032] It should be noted that when the limiting hole 31 of the support plate 3 is fitted onto the first limiting rod 4, rotating the support plate 3 counterclockwise will cause the U-shaped groove 32 to face downwards, allowing it to be locked onto the second limiting rod 5.

[0033] In this embodiment, the distance between the center of the limiting hole 31 on the support plate 3 and the center of the U-shaped groove 32 is the same as the distance between the center of the second limiting rod 5 and the center of the first limiting rod 4 when the glue gun 2 is in the correct cleaning position, thereby ensuring that the glue gun 2 is positioned in the cleaning position.

[0034] When the cigarette packaging machine is shut down for final production, all power and compressed air are turned off. Without compressed air, the swing arm cylinder 1 is in a disabled state. At this time, the support plate 3 restricts the spatial position of the third support rod, and the ball screw 7 restricts the rotation and movement of the second limit rod 5, thereby restricting the rotation of the transmission plate and the second support rod, thus fixing the glue gun 2 in the clean position and preventing it from falling. This ensures the glue nozzle remains moist, preventing the glue from solidifying and clogging the nozzle.

[0035] In this embodiment, as Figure 5 , Figure 6 As shown, the ball screw 7 includes a screw body, which is hollow inside. One end of the screw body is closed and has an internal hexagonal screw hole, while the other end is open. A spring 71 is installed inside the screw body. One end of the spring 71 is fixedly connected to the side wall of the closed end inside the screw body, and the other end is fixedly connected to a ball 72.

[0036] It should be noted that the diameter of the open end of the screw body is smaller than the diameter of the ball bearing 72, and the diameter of the screw body is equal to the diameter of the ball bearing 72, so that the ball bearing 72 can move within the screw body without being pushed out of the screw body by the spring 71.

[0037] Understandably, in this embodiment, the ball screw 7 is threaded into the first threaded hole 33 using an Allen wrench. Tightening the ball screw 7 causes the ball 72 to press against the second limit rod 5. The ball 72 moves toward the spring 71 to compress the spring 71. The spring 71 gives the ball 72 a reaction force to press against the second limit rod 5, so that the second limit rod 5 cannot move or rotate.

[0038] In an embodiment, such as Figure 1 , Figure 2 , Figure 3 As shown, the end of the second limiting rod 5 furthest from the third support rod 23 is fixedly connected to the limiting plate 6, and a limiting groove is formed between the limiting plate 6 and the third support rod 23. It can be understood that along the axis of the third support rod 23, the length of the limiting groove is equal to the thickness of the support plate 3. When the U-shaped groove 32 of the support plate 3 is engaged in the limiting groove, the limiting groove can restrict the support plate 3 from swaying on the second limiting rod 5, thereby ensuring that the second limiting rod 5 limits the support plate 3, ensuring that the support plate 3 will not shift during final production stoppage, and providing stable support for the glue gun 2.

[0039] In this embodiment, as Figure 1 , Figure 2 , Figure 3 As shown, the length of the first limiting rod 4 is greater than the length of the second limiting rod 5. Generally, the length of the first limiting rod 4 is twice the length of the second limiting rod 5. It is understandable that, because the diameter of the limiting hole 31 is equal to the diameter of the first limiting rod 4, when the U-shaped groove 32 of the support plate 3 is engaged in the limiting groove, the possibility of the limiting hole 31 of the support plate 3 moving axially relative to the first limiting rod 4 is relatively small. However, to ensure the stable installation of the support plate 3 on the first limiting rod 4 and the second limiting rod 5, it can provide stable support for the glue gun 2. In this embodiment, making the length of the first limiting rod 4 greater than the length of the second limiting rod 5 provides a redundant protective function.

[0040] In this embodiment, as Figure 7 As shown, the second limiting rod 5 and the third support rod 23 are fixedly connected by a threaded connection. Specifically, the third support rod 23 has a second threaded hole at the end facing away from the frame 8, and the end of the second limiting rod 5 away from the limiting plate 6 is designed as a threaded section 52. The external thread of the threaded section 52 matches the internal thread in the second threaded hole, and the length of the threaded section 52 is less than the depth of the second threaded hole.

[0041] In this embodiment, the second limiting rod 5 and the third support rod 23 are connected by threads. Under long-term use, the ball screw 7 and the second limiting rod 5 will rub against each other, causing damage to both the second limiting rod 5 and the ball screw 7. The ball screw 7 can be replaced, and the second limiting rod 5 can also be replaced.

[0042] In this embodiment, a baffle 53 is fixedly connected to the second limiting rod 5. There is a smooth section 51 between the limiting plate 6 and the baffle 53. The length of the smooth section 51 is equal to the thickness of the support plate 3. The limiting groove formed between the limiting plate 6 and the baffle 53 can restrict the support plate 3 from moving axially along the second limiting rod 5.

[0043] Although the specific embodiments of the present utility model have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the present utility model. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solution of the present utility model are still within the scope of protection of the present utility model.

Claims

1. A glue gun positioning device for a cigarette packer, characterized in that, This includes a support plate and a first limiting rod and a second limiting rod installed on the transmission mechanism; The transmission mechanism includes a first support rod, a second support rod, and a third support rod. The first support rod is fixedly connected to the frame. One end of the second support rod is rotatably connected to the frame, and the other end is fixedly connected to the glue gun. A transmission plate is fixedly connected to the second support rod, and the top of the transmission plate is fixedly connected to the third support rod. One end of the swing arm cylinder is rotatably connected to the first support rod, and the other end is rotatably connected to the third support rod. The first limiting rod is fixedly connected to the end of the first support rod away from the frame; the second limiting rod is fixedly connected to the end of the third support rod away from the frame; the support plate has through holes at both ends and is sleeved on the first and second limiting rods, and the second limiting rod has a screw threadedly connected to the side wall of the corresponding through hole; the spacing of the through holes is equal to the distance between the center of the second limiting rod and the center of the first limiting rod when the glue gun is in the cleaning position.

2. A positioning device for a glue gun of a cigarette packing machine according to claim 1, characterized in that, The support plate has a limiting hole at one end and a U-shaped groove at the other end. A first threaded hole is formed on the side of the U-shaped groove away from the limiting hole, and a ball screw is connected to the internal thread of the first threaded hole.

3. The glue spray gun positioning device for a cigarette packaging machine as described in claim 2, characterized in that, The diameter of the limiting hole is equal to the diameter of the first limiting rod, and the width of the U-shaped groove is equal to the diameter of the second limiting rod.

4. The glue spray gun positioning device for a cigarette packaging machine as described in claim 2, characterized in that, The distance between the center of the limiting hole and the center of the U-shaped groove is the same as the distance between the center of the second limiting rod and the center of the first limiting rod when the glue gun is in the cleaning position.

5. The glue spray gun positioning device for a cigarette packaging machine as described in claim 2, characterized in that, The ball screw includes a hollow screw body, one end of which is closed and has an internal hexagonal screw hole, and the other end is open. One end of a spring is fixedly connected to the closed end inside the screw body, and the other end is fixedly connected to a ball.

6. The glue spray gun positioning device for a cigarette packaging machine as described in claim 5, characterized in that, The diameter of the open end of the screw body is smaller than the diameter of the ball, and the diameter of the screw body is equal to the diameter of the ball.

7. The glue spray gun positioning device for a cigarette packaging machine as described in claim 1, characterized in that, The end of the second limiting rod away from the third support rod is fixedly connected to the limiting plate, and a limiting groove is formed between the limiting plate and the third support rod.

8. The glue spray gun positioning device for a cigarette packaging machine as described in claim 1, characterized in that, The length of the first limiting rod is greater than the length of the second limiting rod.

9. The glue spray gun positioning device for a cigarette packaging machine as described in claim 1, characterized in that, The third support rod has a second threaded hole at one end facing away from the frame. The end of the second limiting rod away from the limiting plate is designed as a threaded segment. The external thread of the threaded segment matches the internal thread in the second threaded hole, and the length of the threaded segment is less than the depth of the second threaded hole.

10. The glue spray gun positioning device for a cigarette packaging machine as described in claim 9, characterized in that, A baffle is fixedly connected to the second limiting rod. There is a smooth section between the limiting plate and the baffle, and the length of the smooth section is equal to the thickness of the support plate.

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