A heat sealing device for the end face of a carton

Abstract

This utility model discloses a heat-sealing device for the end face of a cigarette pack, comprising: a support plate with a heating element on its bottom surface, a through hole for discharging the cigarette pack on the support plate, a gate plate slidably disposed at the bottom of the through hole, and the gate plate being in contact with the lower surface of the support plate; a lower conveying device with the support plate on top of it, and a gap existing between the support plate and the conveying surface of the lower conveying device; two upper conveying devices located on both sides of the upper surface of the support plate, the conveying surfaces of the upper conveying devices being arranged face-to-face and perpendicular to the support plate, the conveying surfaces of the two upper conveying devices matching the length of the cigarette pack, and the two upper conveying devices being driven synchronously; and two end-face heat-sealing assemblies located at the tail of the upper conveying devices, the end-face heat-sealing assembly comprising a first cylinder, a push plate, a soldering iron support plate, and a soldering iron. The purpose of this utility model is to provide a heat-sealing device for the end face of a cigarette pack, facilitating heat sealing of the middle of the end face and avoiding the problem of incomplete sealing of the oil seal in the middle of the end face.

Description

Technical Field

[0001] This utility model relates to the field of packaging technology, specifically to a heat-sealing device for the end face of a carton. Background Technology

[0002] In the cigarette production process, the final step is to pack the cigarette box into the carton and then cover it with film. During the heat sealing process, because the carton is relatively hard and uses a thickened oil seal, and the middle of the carton end face is wrapped with 6 layers of oil seal, when the end face is heat-sealed, the middle of the two end faces of the carton is usually slightly concave, making it difficult for the heat-sealing iron to apply pressure to the concave area. Therefore, it is not possible to effectively seal the middle oil seal on the end face of the carton. For example, the utility model with publication number CN215664328U describes a beautification system for YB99B hard carton, including: a pre-sealing device and an end face beautification device. The device comprises a top beauty container, a bottom beauty container, and side beauty containers. A pre-sealing device is located at the inlet of the end-face beauty device. The top and bottom beauty containers are arranged opposite each other from top to bottom, and are respectively located at the outlet of the end-face beauty device. A pre-sealing soldering iron 2 is provided to heat-seal both ends of the strip box. However, in actual use, there is a certain indentation in the middle of both ends of the strip box, making it difficult for the pre-sealing soldering iron 2 to heat-seal the indented part, resulting in an incomplete oil seal in the middle. In order to overcome this technical problem, this utility model provides a strip box end-face heat sealing device. Utility Model Content

[0003] The purpose of this invention is to provide a heat-sealing device for the end face of a carton, which facilitates heat sealing of the middle part of the end face and avoids the problem of incomplete sealing of the oil seal in the middle of the end face.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] A heat-sealing device for the end face of a carton, comprising:

[0006] The support plate has a heating element on its bottom surface and a through hole for discharging the strip box. A gate is slidably installed at the bottom of the through hole and is attached to the lower surface of the support plate.

[0007] The lower conveyor is equipped with a support plate, and there is a gap between the support plate and the conveying surface of the lower conveyor.

[0008] There are two upper conveying devices located on both sides of the upper surface of the support plate. The conveying surfaces of the upper conveying devices are arranged face to face and perpendicular to the support plate. The conveying surfaces of the two upper conveying devices are matched with the length of the tobacco strip and the two upper conveying devices are driven synchronously.

[0009] Two end-face heat sealing assemblies are located at the tail of the upper conveying device. The end-face heat sealing assembly includes a first cylinder, a push plate, a soldering iron support plate, and a soldering iron. The first cylinder is arranged on both sides of the support plate, and the push plate is arranged at the first cylinder's push-out end. The push plate and the soldering iron support plate are connected by a spring. The soldering iron is arranged face-to-face on one side of the soldering iron support plate, and the soldering iron protrudes from the middle of the soldering iron support plate.

[0010] Fiber optic sensors, located on both sides of the support plate, are used to detect the arrival of the strip box.

[0011] Furthermore, a guide rod is provided at the tail of the support plate, and one side of the push plate and / or soldering iron support plate passes through the guide rod.

[0012] Furthermore, the lower conveying device includes a housing, a first motor, and several conveying rollers. The conveying rollers are rotatably disposed in the housing, and one of the conveying rollers is connected to the first motor. An observation window is also provided on the side wall of the housing.

[0013] Furthermore, a second cylinder is provided on the rear side of the housing, and the output end of the second cylinder is connected to the gate.

[0014] Furthermore, the upper conveying device includes a support, rollers, a conveyor belt, a linkage mechanism, and a second motor. The support is fixedly mounted on the support plate, and two rollers are rotatably mounted between the support and the support plate. The conveyor belt is wound around the rollers, and the bottom end of the rollers passes through the support plate and is connected to the linkage mechanism. The output end of the second motor is connected to the linkage mechanism.

[0015] Furthermore, a feed chute and a baffle are provided on one side of the support plate. The feed chute extends obliquely above the support plate, and the baffle is provided below the edge of the support plate.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] This utility model provides an end-face heat sealing assembly at the tail of the upper conveying device. The end-face heat sealing assembly includes a first cylinder, a push plate, a soldering iron support plate, and a soldering iron. The push plate and the soldering iron support plate are connected by a spring. The first cylinder pushes the push plate out, so that the soldering iron on the soldering iron support plate can act on the middle of the end face of the carton, thereby heat sealing the middle of the carton. Since the soldering iron protrudes from the middle of the soldering iron support plate and a spring connects the soldering iron support plate and the push plate, it can adaptively compensate for the concave part in the middle of the carton, thus facilitating the heat sealing of the concave part of the carton. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the upper structure of the support plate.

[0020] Figure 3 This is a schematic diagram of the lower structure of the support plate.

[0021] Figure 4 This is a schematic diagram of the lower conveyor device.

[0022] In the diagram, 1-lower conveyor, 1a-shell, 1b-conveyor roller, 1c-first motor, 1d-observation window, 2-upper conveyor, 2a-second motor, 2b-support, 2c-roller body, 2d-conveyor belt, 2e-linkage mechanism, 3-support plate, 3a-through hole, 4-first cylinder, 5-guide rod, 6-push plate, 7-spring, 8-soldering iron support plate, 9-soldering iron, 10-feed trough, 11-fiber optic sensor, 12-second cylinder, 13-gate, 14-heating tube, 15-baffle. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0025] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0026] refer to Figure 1-4 As shown, this utility model provides a heat-sealing device for the end face of a carton, comprising:

[0027] The support plate 3 has a heating tube 14 on its bottom surface. The support plate 3 has a through hole 3a for discharging the strip box. The size of the through hole 3a must be larger than the size of the strip box. A gate 13 is slidably installed at the bottom of the through hole 3a. The gate 13 is attached to the lower surface of the support plate 3. The discharge of the strip box is controlled by the gate 13.

[0028] Specifically, a second cylinder 12 is provided on the rear side of the housing 1a, and the output end of the second cylinder 12 is connected to the gate 13.

[0029] The lower conveying device 1 is provided with a support plate 3. There is a gap between the support plate 3 and the conveying surface of the lower conveying device 1, so that the heating tube 14 and the gate 13 are located in the gap. When the carton is discharged, it falls onto the lower conveying device 1. During the conveying process of the lower conveying device 1, the packaging film is heated by the heating tube 14 to shrink it. In this utility model, the conveying surface refers to the plane in contact between the carton and the lower conveying device 1 or the upper conveying device 2.

[0030] In some embodiments, the lower conveying device 1 includes a housing 1a, a first motor 1c, and a plurality of conveying rollers 1b, the conveying rollers 1b being rotatably disposed in the housing 1a and one of the conveying rollers 1b being connected to the first motor 1c, and an observation window 1d is also provided on the side wall of the housing 1a.

[0031] Specifically, one end of the conveyor roller 1b is equipped with a double-layered sprocket, and the sprockets of two adjacent conveyor rollers 1b are connected by a chain, thereby driving all the conveyor rollers 1b to rotate.

[0032] There are two upper conveying devices 2 located on both sides of the upper surface of the support plate 3. The conveying surfaces of the upper conveying devices 2 are arranged face to face and perpendicular to the support plate 3. The conveying surfaces of the two upper conveying devices 2 are matched with the length of the cigarette pack and the two upper conveying devices 2 are driven synchronously, so that the carton moves forward between the conveying surfaces of the upper conveying devices 2 on the left and right sides. On the other hand, the conveying surfaces on both sides can play a certain shaping role on the packaging film at both ends of the carton.

[0033] In some embodiments, the upper conveying device 2 includes a support 2b, rollers 2c, a conveyor belt 2d, a linkage mechanism 2e, and a second motor 2a. The support 2b is fixedly mounted on the support plate 3. Two rollers 2c are rotatably mounted between the support 2b and the support plate 3. The conveyor belt 2d is wound around the rollers 2c, and the bottom end of the rollers 2c passes through the support plate 3 and is connected to the linkage mechanism 2e. The output end of the second motor 2a is connected to the linkage mechanism 2e.

[0034] Preferably, the linkage mechanism 2e includes two active conical teeth, two driven conical teeth, and a rotating shaft. The two active conical teeth are disposed on the rotating shaft and the rotating shaft is connected to the output end of the second motor 2a. The two driven conical teeth are respectively disposed on the rollers 2c of the two upper conveying devices 2, and the driven conical teeth mesh with the active conical teeth. Of course, this utility model does not limit the structure of the linkage mechanism 2e.

[0035] Two end-face heat sealing assemblies are located at the tail of the upper conveying device 2. The end-face heat sealing assembly includes a first cylinder 4, a push plate 6, a soldering iron support plate 8, and a soldering iron 9. The first cylinder 4 is arranged on both sides of the support plate 3, and the push plate 6 is arranged at the push end of the first cylinder 4. The push plate 6 and the soldering iron support plate 8 are connected by a spring 7. The soldering iron 9 is arranged face-to-face on one side of the soldering iron support plate 8 and protrudes in the middle of the soldering iron support plate 8. The protruding soldering iron 9 acts on the middle of the end face of the carton to facilitate heat sealing of the recessed middle of the carton. The through hole 3a is located between the two soldering irons 9, and the push plate 6 and the soldering iron support plate 8 are connected by a spring 7, so that the recessed middle of the carton can be adaptively compensated.

[0036] The support plate 3 is also provided with a guide rod 5 at its tail end. The push plate 6 and / or the soldering iron support plate 8 are mounted on one side of the guide rod 5, thereby providing stability for the movement of the push plate 6 and / or the soldering iron support plate 8. The support plate 3 is provided with a feed chute 10 and a baffle 15 on one side. The feed chute 10 extends obliquely above the support plate 3, and the baffle 15 is located below the edge of the support plate 3.

[0037] The fiber optic sensor 11 is located on both sides of the support plate 3 to detect the arrival of the strip box. As a preferred embodiment, the fiber optic sensor 11 is set on the push plate 6, and a round hole is provided on the soldering iron support plate 8. The round hole is located in front of the fiber optic sensor 11 to facilitate detection.

[0038] The working process of this utility model is as follows: the carton covered with packaging film falls from the feed trough 10 into the support plate 3 and is conveyed by the upper conveying devices 2 on both sides. When the fiber optic sensor 11 detects a signal, the first cylinder 4 starts and the soldering iron 9 is pushed out to heat seal the middle of the carton. Since the soldering iron 9 protrudes and the soldering iron support plate 8 is connected by the spring 7, it can adaptively compensate for the concave part in the middle of the carton. After a certain period of heat sealing, the second cylinder 12 drives the gate plate 13 to retract, so that the through hole 3a opens. The carton falls from the through hole 3a onto the lower conveying device 1. During the conveying process of the lower conveying device 1, the packaging film is heated and shrunk by the heating tube 14.

[0039] Although the present invention has been described herein with reference to several illustrative embodiments, it should be understood that those skilled in the art can devise many other modifications and implementations that fall within the scope and spirit of the principles disclosed herein. More specifically, various modifications and improvements can be made to the components or layout of the subject matter arrangement within the scope of the disclosure, drawings, and claims. Besides modifications and improvements to the components or layout, other uses will be apparent to those skilled in the art.

Claims

1. A heat-sealing device for the end face of a carton, characterized in that, include: The support plate (3) has a heating tube (14) on its bottom surface. A through hole (3a) for discharging the strip box is provided on the support plate (3). A gate (13) is slidably provided at the bottom of the through hole (3a). The gate (13) is attached to the lower surface of the support plate (3). The lower conveying device (1) is provided with a support plate (3), and there is a gap between the support plate (3) and the conveying surface of the lower conveying device (1); There are two upper conveying devices (2) located on both sides of the upper surface of the support plate (3). The conveying surfaces of the upper conveying devices (2) are arranged face to face and perpendicular to the support plate (3). The conveying surfaces of the two upper conveying devices (2) match the length of the cigarette bar and the two upper conveying devices (2) are driven synchronously. Two end-face heat sealing assemblies are located at the tail of the upper conveying device (2). The end-face heat sealing assembly includes a first cylinder (4), a push plate (6), a soldering iron support plate (8), and a soldering iron (9). The first cylinder (4) is arranged on both sides of the support plate (3), and the push plate (6) is provided at the push end of the first cylinder (4). The push plate (6) and the soldering iron support plate (8) are connected by a spring (7). The soldering iron (9) is arranged face-to-face on one side of the soldering iron support plate (8), and the soldering iron (9) protrudes in the middle of the soldering iron support plate (8). Fiber optic sensors (11) are located on both sides of the support plate (3) to detect the arrival of the strip box.

2. The heat-sealing device for the end face of a carton according to claim 1, characterized in that: The support plate (3) is also provided with a guide rod (5) at its tail, and the push plate (6) and / or soldering iron support plate (8) are mounted on the guide rod (5) on one side.

3. The heat-sealing device for the end face of a carton according to claim 1, characterized in that: The lower conveying device (1) includes a housing (1a), a first motor (1c) and several conveying rollers (1b). The conveying rollers (1b) are rotatably disposed in the housing (1a) and one of the conveying rollers (1b) is connected to the first motor (1c). The side wall of the housing (1a) is also provided with an observation window (1d).

4. The heat-sealing device for the end face of a carton according to claim 3, characterized in that: A second cylinder (12) is provided on the rear side of the housing (1a), and the output end of the second cylinder (12) is connected to the gate (13).

5. The heat-sealing device for the end face of a carton according to claim 1, characterized in that: The upper conveying device (2) includes a support (2b), rollers (2c), a conveyor belt (2d), a linkage mechanism (2e), and a second motor (2a). The support (2b) is fixedly mounted on the support plate (3). Two rollers (2c) are rotatably mounted between the support (2b) and the support plate (3). The conveyor belt (2d) is wound around the rollers (2c), and the bottom end of the rollers (2c) passes through the support plate (3) and is connected to the linkage mechanism (2e). The output end of the second motor (2a) is connected to the linkage mechanism (2e).

6. The heat-sealing device for the end face of a carton according to claim 1, characterized in that: The support plate (3) is provided with a feeding trough (10) and a curtain (15) on one side. The feeding trough (10) extends obliquely above the support plate (3), and the curtain (15) is provided below the edge of the support plate (3).

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