A two-way automatic cutting device for butt-joint of tobacco-packaging white cardboard

Abstract

The present invention discloses a two-way automatic cutting device for butt-joint of tobacco packaging white cardboard, belonging to the technical field of cigarette packaging equipment, and is characterized in that: it includes a backing plate and two shearing units. The backing plate is horizontally arranged and is provided with a cutting slot. The two shearing units are symmetrically arranged on the upper and lower sides of the backing plate. The shearing unit includes a shearing cylinder, a shearing frame and a cutting knife. The shearing cylinder is installed on the frame. The shearing cylinder has a cylinder rod with a vertical axis and extending towards the backing plate. The shearing frame is installed on the cylinder rod of the shearing cylinder. The cutting knife is installed on the shearing frame, and the position of the cutting knife corresponds to that of the cutting slot. The two shearing units provided by this device can cut the strip-shaped white cardboard arranged in upper and lower layers. When the upper and lower layers of strip-shaped white cardboard need to be cut as the feeding tail section, the two shearing units act to achieve cutting, ensuring the smooth feeding of the white cardboard after butt-joint.

Description

Technical Field

[0001] The invention belongs to the technical field of tobacco packaging, and in particular relates to a bidirectional automatic cutting device for butting white cardboard for tobacco packaging. Background Art

[0002] Cigarette packaging equipment is one of the main equipment of each cigarette factory in the cigarette industry. Cigarette packaging equipment is an integrated production line that includes various packaging automation devices such as cartoning, box loading and film hot stamping. The working efficiency of cigarette packaging equipment directly determines the production capacity of the enterprise.

[0003] White paper strips are thin paperboards used in cigarette boxes. The paper rolls are in the feeding state. The paper rolls are introduced into the corresponding device of cigarette packaging and fed. When the paper rolls are replaced, the tail end of the feeding paper roll needs to be glued and docked with the head end of the spare paper roll. Previously, the end docking of paper roll replacement was completed manually by the operator. The manual docking of the ends of white paper strips requires the machine to be stopped during the docking operation, which is inefficient. Because the feeding of white paper strips is driven by the packaging device in the cigarette packaging production line, the paper splicing process requires other devices to be shut down in coordination, limiting the working efficiency of the entire production line. In addition, repeated shutdowns have a negative impact on the performance of the equipment and increase the failure rate of the equipment. Therefore, it is necessary to design an automatic device to replace manual docking of white cardboard. After the white cardboard is automatically docked, the tail of the previous section of white cardboard needs to be cut off. Therefore, designing an automatic device to cut the tail section of the connected white cardboard is a necessary condition for realizing automatic docking of white cardboard. Summary of the invention

[0004] In view of the problems existing in the prior art, the present invention provides a two-way automatic cutting device for solving the problem of white cardboard docking for tobacco packaging. The device can cut the tail end of the white cardboard after automatic docking.

[0005] The present invention is implemented as follows: a bidirectional automatic cutting device for joining white cardboard for tobacco packaging, characterized in that it includes a pad and two shearing units, the pad is horizontally arranged, and the pad is provided with a slit; the two shearing units are symmetrically arranged on the upper and lower sides of the pad, the shearing unit includes a shearing cylinder, a shearing frame and a cutter, the shearing cylinder is installed on the frame, the shearing cylinder has a cylinder rod with a vertical axis and extending toward the pad, the shearing frame is installed on the cylinder rod of the shearing cylinder, the cutter is installed on the shearing frame, and the cutter corresponds to the position of the slit.

[0006] In the above technical solution, preferably, the shear frame is provided with a vertical guide hole, and a vertical guide rod which can move vertically along the axis of the vertical guide hole is installed in the vertical guide hole, a horizontal pressure plate is installed at the lower end of the vertical guide rod, and the horizontal pressure plate is provided with a knife slot for allowing the cutting knife to pass through, and a spring is installed on the vertical guide rod, and the spring applies an elastic force to the vertical guide rod in the direction of extension of the cylinder rod of the shear cylinder.

[0007] The advantages and effects of the present invention are:

[0008] The two shearing units provided in this device can cut the upper and lower double-layer strips of white cardboard. When the upper and lower layers of strips of white cardboard need to be cut as the tail section of feeding, the two shearing units act to cut them, ensuring the smooth feeding of the white cardboard after docking. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram of the structure of the present invention;

[0010] Figure 2 It is a schematic diagram of the structure of the viscose component in the present invention. DETAILED DESCRIPTION

[0011] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0012] In order to fill the technical gap of the current lack of a device for automatically cutting off the tail section of the strip white cardboard after the butt joint, the present invention provides a bidirectional automatic cutting device for butt joint of white cardboard for tobacco packaging. In order to further illustrate the structure of the present invention, the detailed description is as follows in conjunction with the accompanying drawings:

[0013] See also Figure 1 A bidirectional automatic cutting device for butt jointing of white cardboard for tobacco packaging comprises a pad 1 and two shearing units. The pad is arranged horizontally, and a slit is provided on the pad. The pad is fixed on a frame, and the frame can be a carrier of a device for butt jointing of strip white cardboard. The upper and lower end surfaces of the pad are planes, and the slit is a transverse slit that passes through the upper and lower end surfaces of the pad.

[0014] The two shearing units are symmetrically arranged on the upper and lower sides of the pad, and the shearing units include a shearing cylinder 2, a shearing frame 3 and a cutter 4. The support plate is installed on the frame by screws, the support plate is perpendicular to the plate surface of the frame, and the shearing cylinder and the pad are fixed on the support plate by screws.

[0015] The shearing cylinder has a cylinder rod with a vertical axis and extending towards the backing plate. The shearing frame is installed on the cylinder rod of the shearing cylinder, and the cutter is installed on the shearing frame, with the position of the cutter corresponding to the cutting slot. The shearing cylinder drives the cutter to move up and down, and the cutting edge of the cutter and the edge of the cutting slot form an intersecting double-edge for shearing.

[0016] The strip paper for normal feeding and the backup strip paper respectively pass through above and below the backing plate. The operation of the shearing unit above the backing plate can cut the strip paper above, and the operation of the shearing unit below the backing plate can cut the strip paper below.

[0017] In this embodiment, a vertical guide hole is provided on the shearing frame. A vertical guide rod 5 that moves vertically along the axis of the vertical guide hole is assembled in the vertical guide hole. A horizontal pressing plate 6 is installed at the lower end of the vertical guide rod. The horizontal pressing plate is provided with a knife slot for the cutter to pass through. A spring 7 is sleeved on the vertical guide rod, and the spring applies an elastic force to the vertical guide rod in the direction of the extension of the cylinder rod of the shearing cylinder. Specifically, guide sleeves for the vertical guide holes are installed on the left and right sides of the shearing frame. The vertical guide rod is a cylindrical rod assembled in the guide sleeve. The upper end of the cylindrical rod is provided with a head to prevent the cylindrical rod from coming out. The spring is sleeved on the vertical guide rod. The upper end of the spring presses against the shearing frame, and the lower end of the spring presses against the horizontal pressing plate. In the state where the horizontal pressing plate is not pressed by the backing plate, it protrudes from the cutter and contracts into the knife slot of the horizontal pressing plate.

[0018] When the shearing frame moves towards the backing plate, the horizontal pressing plate first presses against the backing plate to flatten the strip paper. As the shearing frame continues to move, the cutter cuts the flattened strip paper.

[0019] Please refer to Figure 2 , in order to make the tail of the butted strip white cardboard more flat, in this embodiment, an adhesive assembly is added to the backing plate. The adhesive assembly includes a swing arm frame 8, a coil spring, a pressing rod 9, and an adhesive strip 10. The swing arm frames are symmetrically installed on both sides of the backing plate through transverse pins. The swing arm frame is of an elastic sheet structure. The swing arm frame forms a lever-like installation structure with the pin shaft as the axis. A transverse adhesive strip is connected between the ends of the symmetric swing arm frames on both sides. The adhesive strip includes a transverse frame body with both ends connected to the ends of the swing arm frame and a fiber layer that can adsorb glue bonded to the transverse frame body. Sleeve holes are provided at both ends of the transverse frame body, and pins inserted into the sleeve holes are provided at the ends of the swing arm frame. The pressing rod extending towards the inner side of the backing plate is installed at the other end of the swing arm frame. Grooves corresponding to the adhesive strip and the pressing rod and allowing the adhesive strip and the pressing rod to be embedded are provided on the surface of the backing plate. The coil spring is sleeved on the pin shaft, and the coil spring applies a turning elastic force to the swing arm frame. This turning elastic force makes the adhesive strip fit into the corresponding groove on the backing plate. The assemblies with the above structure are installed on both sides of the backing plate.

[0020] During the process of the horizontal pressing plate pressing downwards, the horizontal pressing plate presses the pressing rod, and the adhesive strip is extruded and coated with glue on the end face of the cut strip white cardboard, so that it can be adhered to another butted section of white cardboard during the subsequent conveying process.

[0021] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A two-way automatic cutting device for butt joint of tobacco packaging white cardboard, characterized in that, Including: A backing plate, the backing plate is horizontally arranged, and the backing plate is provided with a cutting slot; Two shearing units, the two shearing units are symmetrically arranged on the upper and lower sides of the backing plate. The shearing unit includes a shearing cylinder, a shearing frame and a cutting knife. The shearing cylinder is installed on the machine frame. The shearing cylinder has a cylinder rod with a vertical axis and extending towards the backing plate. The shearing frame is installed on the cylinder rod of the shearing cylinder. The cutting knife is installed on the shearing frame, and the position of the cutting knife corresponds to that of the cutting slot; A glue sticking component is added to the backing plate. The glue sticking component includes a swing arm frame, a coil spring, a pressing rod and a glue sticking strip; the swing arm frame is symmetrically installed on both sides of the backing plate through a transverse pin shaft, and the swing arm frame is of an elastic sheet structure; the swing arm frame forms a lever-like installation structure with the pin shaft as the axis, and a transverse glue sticking strip is connected between the ends of the symmetric swing arm frames on both sides. The glue sticking strip includes a transverse frame body with both ends connected to the ends of the swing arm frame and a fiber layer capable of adsorbing glue bonded to the transverse frame body; sleeve holes are arranged at both ends of the transverse frame body, and pins inserted into the sleeve holes are arranged at the ends of the swing arm frame; the pressing rod extending towards the inner side of the backing plate is installed at the other end of the swing arm frame, and grooves for respectively corresponding to the glue sticking strip and the pressing rod and enabling the glue sticking strip and the pressing rod to be embedded are arranged on the plate surface of the backing plate. The coil spring is sleeved on the pin shaft, and the coil spring applies a turning elastic force to the swing arm frame, and this turning elastic force makes the glue sticking strip stick into the corresponding groove of the backing plate; the components with the above structure are installed on both sides of the backing plate.

2. The two-way automatic cutting device for butt-joint of tobacco packaging white cardboard according to claim 1, wherein: A vertical guide hole is arranged on the shearing frame, and a vertical guide rod that vertically moves along the axis of the vertical guide hole is assembled in the vertical guide hole. A horizontal pressing plate is installed at the lower end of the vertical guide rod. The horizontal pressing plate is provided with a knife slot for the cutting knife to pass through. A spring is sleeved on the vertical guide rod, and the spring applies an elastic force to the vertical guide rod in the direction of the extension of the cylinder rod of the shearing cylinder.

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