Inlet rubber tapping device of automatic carton unpacking machine for cigarette cartons

Abstract

The utility model discloses an inlet rubber tapping device of an automatic carton unpacking machine for cigarette cartons. The inlet rubber tapping device comprises a base plate, an opening and closing assembly, a conveying structure and a knife rest structure. The opening and closing assembly comprises a first vertical plate and a second vertical plate which can get close to or away from each other. The conveying structure is used for conveying cartons; the knife rest structure comprises a first knife rest and a second knife rest; the first tool rest comprises a tool rest seat plate, a lifting mounting plate, a tension spring seat, a swing tension spring, a swing rod and a cutterhead assembly; the tool rest seat plate is connected with the first vertical plate; the lifting mounting plate is slidably connected to the tool rest seat plate, and the tension spring seat is fixed to the lifting mounting plate. One end of the swing rod is hinged with the lifting mounting plate, and the other end is connected with the cutterhead assembly; one end of the swinging tension spring is connected with the tension spring seat; the cutterhead assembly comprises a cutterhead and a cutterhead depth limiting plate; the cutterhead depth limiting plate is provided with a depth limiting face, and the depth limiting face is arranged close to the cutterhead blade edge. The automatic rubber tapping machine can automatically adapt to rubber tapping work of cartons with different sizes within a certain range, and is high in compatibility and good in cutting effect.

Description

Technical Field

[0001] The utility model relates to the technical field of automatic packaging production, in particular to an inlet rubber tapping device of an automatic cigarette carton opening machine. Background Art

[0002] When the tobacco industry purchases external cartons, the cartons are stacked and placed in straight boxes for packaging and delivery by the carton manufacturer to prevent the cartons from being damaged during transportation. After delivery to the tobacco factory, they need to be manually unpacked and the cartons inside the box taken out for use. This process requires manual cutting of the carton packing tape, opening the carton and taking out the cartons. Manual operation has low work efficiency and is easy to scratch the cartons inside the carton, wasting a lot of manpower and material resources.

[0003] At present, there is an automated unpacking device for finished strip box packaging cartons purchased from outside the cigarette factory, which is used to assist the cigarette factory in unpacking, unpacking and outputting the strip box stacking process; the entrance rubber tapping device is an important part of the automatic cigarette carton unpacking machine, which is arranged at the entrance of the automatic cigarette carton unpacking machine, and is used to cut the packing tape between the upper flap and the lower flap of the carton fed into the automatic cigarette carton unpacking machine, so as to facilitate the subsequent process. The existing entrance rubber tapping device is difficult to control the cutting depth, and the cutting depth directly determines the cutting effect of the carton. If the cutting is too shallow, the packing tape cannot be cut, and if it is too deep, there is a risk of scratching the strip box inside the carton. When facing some cigarette cartons of different specifications, the position of the blade can be adjusted to control it. However, when facing some cigarette cartons of the same specifications but different batches, due to the size error, the blade position cannot be adjusted in time, resulting in poor cutting effect. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the utility model provides an entrance rubber tapping device for an automatic cigarette carton opening machine, which can automatically adapt to the rubber tapping work of cartons of different sizes within a certain range, has strong compatibility and good cutting effect.

[0005] The utility model provides an inlet rubber tapping device for an automatic cigarette carton opening machine, comprising a base plate, an opening and closing component, a transmission structure and a knife holder structure;

[0006] The opening and closing assembly is mounted on the base plate, and the opening and closing assembly includes a first vertical plate and a second vertical plate, the first vertical plate and the second vertical plate are arranged on two opposite sides of the base plate, a passage for the carton to pass through is formed between the first vertical plate and the second vertical plate, and the first vertical plate and the second vertical plate can be close to or away from each other;

[0007] The transmission structure is installed on the top of the opening and closing assembly and is used to transmit the cartons so that the cartons pass through the passage;

[0008] The tool holder structure includes a first tool holder and a second tool holder, the first tool holder is connected to the first vertical plate, and the second tool holder is connected to the second vertical plate; the first tool holder and the second tool holder are arranged on opposite sides of the channel; the first tool holder includes a tool holder seat plate, a lifting mounting plate, a tension spring seat, a swing tension spring, a swing rod and a knife disc assembly; the end of the tool holder seat plate is connected to the first vertical plate; the lifting mounting plate is slidably connected to the tool holder seat plate, and the tension spring seat is fixed to the lifting mounting plate; one end of the swing rod is hinged to the lifting mounting plate, and the other end is connected to the knife disc assembly; one end of the swing tension spring is connected to the tension spring seat, and the other end is connected to the swing rod, and the swing tension spring provides an elastic force for the knife disc assembly at the end of the swing rod to approach the channel; the knife disc assembly includes a knife disc and a knife disc depth limit plate; the knife disc has a blade edge that can cut the tape in the circumferential direction, and the knife disc depth limit plate has a depth limit surface, which is arranged close to the knife disc blade edge, and the depth limit surface is used to abut against the surface of the carton.

[0009] As a preferred embodiment, the cutter disc assembly also includes a cutter disc seat and a cutter disc drive; one end of the cutter disc seat is fixed to the rocker arm, and the other end is used to install the cutter disc drive, the cutter disc drive has an output end, the output end of the cutter disc drive is connected to the cutter disc via a coupling, and the cutter disc drive provides power to drive the cutter disc to rotate and cut the tape; cutter disc depth limit plates are provided on opposite sides of the cutter disc, and the two cutter disc depth limit plates are fixed to the cutter disc seat via a fixing plate.

[0010] As a preferred embodiment, a lifting slide rail is vertically arranged on the side of the tool holder seat plate, a tool holder top plate is arranged on the top of the tool holder seat plate, a through hole is opened on the tool holder top plate, a locking groove is opened in the circumference of the through hole, and a locking handle is arranged in the locking groove; a lifting slider is fixed on the lifting mounting plate, and the lifting slider cooperates with the lifting slide rail to make the lifting mounting plate slidably connected to the tool holder seat plate, so that the lifting mounting plate can move in the vertical direction;

[0011] A lifting screw is also provided between the tool holder seat plate and the lifting mounting plate, the lifting screw is arranged in parallel with the lifting slide rail, and the end of the lifting screw extends out from the top of the tool holder top plate through the through hole; a hand wheel is fixed to the end of the lifting screw above the tool holder top plate, and a spacer is provided between the hand wheel and the tool holder top plate, and the spacer is sleeved on the circumference of the lifting screw; a flange nut is screwed to the lifting screw below the tool holder top plate, and the outer side of the flange nut is fixed to the lifting mounting plate; the lifting screw is rotated by turning the hand wheel, so that the flange nut moves axially on the lifting screw, driving the lifting mounting plate to move in the vertical direction;

[0012] The lifting installation plate and the outer side of the lifting screw are provided with a swing guard plate, the swing guard plate plays a protective role, and the swing arm is restricted from rotating in a direction away from the channel by the swing guard plate.

[0013] As a preferred embodiment, the opening and closing component includes a translation structure, which includes a translation rail, a translation slider, a first translation mounting plate and a second translation mounting plate; the translation rail is arranged at the bottom of the base plate, and the translation rail is arranged along the length direction of the base plate, and a plurality of translation sliders are fixed on the top of the first translation mounting plate and the second translation mounting plate, and the translation slider cooperates with the translation rail, so that the first translation mounting plate and the second translation mounting plate are slidably connected to the bottom of the base plate; limit members are respectively arranged at both ends of the translation rail, and the limit members are used to limit the extreme positions of the first translation mounting plate and / or the second translation mounting plate.

[0014] As a preferred embodiment, the opening and closing component also includes a transfer structure, and the transfer structure includes a first transfer plate and a second transfer plate, and the first transfer plate and the second transfer plate are L-shaped; the number of the first transfer plates is 2, and the two first transfer plates are arranged at both ends of the first translation mounting plate, the bottom of the first transfer plate is fixed to the first translation mounting plate, and the top of the first transfer plate is fixed to the first vertical plate, so that the first vertical plate can move along the length direction of the substrate; the number of the second transfer plates is 2, and the two second transfer plates are arranged at both ends of the second translation mounting plate, the bottom of the second transfer plate is fixed to the second translation mounting plate, and the top of the second transfer plate is fixed to the second vertical plate, so that the first vertical plate can move along the length direction of the substrate.

[0015] As a preferred embodiment, the opening and closing assembly also includes an opening and closing driving structure, which includes an opening cylinder, a central torsion plate, a first connecting rod and a second connecting rod. The middle part of the central torsion plate is rotatably connected to the base plate through a rotating shaft, so that the central torsion plate can rotate relative to the base plate; the two ends of the central torsion plate are respectively hinged to the first connecting rod and the second connecting rod; the other end of the first connecting rod is hinged to the first adapter plate; the other end of the second connecting rod is hinged to the second adapter plate; the opening cylinder is fixed to the base through a cylinder seat, and the opening cylinder has a telescopic rod, and the telescopic rod of the opening cylinder contacts with the first vertical plate through a pad; the first vertical plate is pushed to move toward the end of the base plate by the opening cylinder, and the central torsion plate is driven to rotate by the first connecting rod, which drives the second connecting rod to push the second vertical plate to move synchronously, thereby realizing the synchronous opening and closing of the first vertical plate and the second vertical plate to the two ends of the base plate.

[0016] As a preferred embodiment, the opening and closing drive structure also includes a limit screw and a limit screw seat, the limit screw seat is arranged on the base plate, the limit screw seat and the cylinder seat are symmetrically arranged with respect to the rotation axis of the central torsion plate, and the limit screw and the limit screw seat are connected by threads; nuts are respectively arranged on both sides of the threaded connection between the limit screw and the limit screw; a PU anti-collision pad is arranged at one end of the limit screw close to the second vertical plate, and when the first translation mounting plate and the second translation mounting plate reach the extreme position of moving toward the center, the PU anti-collision pad is abutted against the second vertical plate.

[0017] As a preferred embodiment, the opening and closing assembly also includes a translational tension spring structure, which includes a first translational tension spring hanging plate, a second translational tension spring hanging plate and a translational tension spring; the first translational tension spring hanging plate is fixed to the first adapter plate, the second translational tension spring hanging plate is fixed to the second adapter plate, and the first translational tension spring hanging plate and the second translational tension spring hanging plate are arranged on the same side close to the substrate; one end of the translational tension spring is fixed to the first translational tension spring hanging plate, and the other end is fixed to the second translational tension spring hanging plate, and the translational tension spring provides an elastic force to move the first translational tension spring hanging plate and the second translational tension spring hanging plate closer to each other.

[0018] As a preferred embodiment, the transmission structure includes a first transmission component and a second transmission component, wherein the first transmission component is arranged on the first vertical plate, and the second transmission component is arranged on the second vertical plate, and the first transmission component and the second transmission component are used to clamp and transport both sides of the carton so that the carton passes through the channel;

[0019] The first transmission component includes a transmission top plate, a transmission bottom plate, an active roller shaft, a tensioning roller shaft, a belt and a belt support plate; the transmission top plate and the transmission bottom plate are fixed parallel to the first vertical plate, and the two ends of the active roller shaft are respectively connected to the transmission top plate and the end of the transmission bottom plate through bearings; the transmission top plate and the transmission bottom plate are respectively provided with tensioning grooves at one end away from the active roller shaft; the two ends of the tensioning roller shaft are respectively slidably connected to the tensioning grooves on the transmission top plate and the transmission bottom plate; a first pulley is arranged on the active roller shaft, and a second pulley is arranged on the surface of the tensioning roller shaft, the first pulley and the second pulley are arranged between the transmission top plate and the transmission bottom plate, and the belt is sleeved on the circumference of the first pulley and the second pulley; the opposite sides of the belt support plate are respectively fixed to the transmission top plate and the transmission bottom plate, and the belt surface is made to close to the carton through the belt support plate.

[0020] As a preferred embodiment, a avoidance hole is provided on the first vertical plate;

[0021] The first transmission assembly also includes a transmission drive, a driving sprocket, a power sprocket and a chain; the transmission drive is fixed to the outer side of the first vertical plate through a motor seat, the transmission drive has an output shaft, the driving sprocket is arranged on the output shaft of the transmission drive, the power sprocket is arranged at the end of the active roller shaft, and the chain passes through the avoidance hole and is sleeved on the circumference of the driving sprocket and the power sprocket; the power sprocket is driven to rotate by the transmission drive, thereby driving the belt to move, so that the carton passes through the channel and translates relative to the knife frame structure to cut the packing tape;

[0022] The first transmission component also includes a chain guard plate, which is arranged on the outer side of the first vertical plate, and has a protective space that can accommodate the active sprocket and the transmission drive member.

[0023] Compared with the prior art, the beneficial effects of the present invention are:

[0024] The utility model provides an entrance rubber tapping device for an automatic cigarette carton opening machine, wherein a swing tension spring is arranged between a tension spring seat and a swing rod, and the swing tension spring provides an elastic force for the swing rod to rotate in the direction of a channel, so that a cutter disc assembly installed at the end of the swing rod approaches the channel, and when the carton passes through the channel, the cutter disc assembly is pressed against the side of the carton under the action of the elastic force, and in the face of some cigarette cartons of the same specification but different batches, or in the case of a certain size error caused by a transmission gap, the cutter disc assembly can always be pressed against the side of the carton through the automatic adjustment of the swing tension spring; at the same time, a cutter disc depth limiting plate is arranged on the side of the cutter disc, and the disc depth limiting plate has a depth limiting surface, and the cutter disc cuts the adhesive tape packing tape between the upper and lower flaps of the carton while the depth limiting surface abuts against the surface of the carton, thereby limiting the further penetration of the cutter disc, reducing the risk of scratching the strip box inside the carton, and controlling the cutting depth through the distance between the depth limiting surface and the edge of the cutter disc blade. The rubber tapping work of cartons of different sizes within a certain range is realized, and the compatibility, practicality and stability of the automatic cigarette carton opening machine are greatly improved.

[0025] The utility model is a kind of automatic cigarette carton opening machine. The entrance rubber tapping device controls the carton transfer speed and the stability of the carton during the movement process by arranging an independent transmission structure, thereby ensuring the success rate of the first step of opening the carton and avoiding the failure of the first step leading to the inability to carry out the subsequent opening steps. The design of the height-adjustable knife disc, the translation tension spring and the swing tension spring can realize the flexible control of the carton tapping and conveying action, and realize the rubber tapping of cartons of different sizes within a certain range, further expanding the compatibility, practicality and stability of the equipment. The equipment can be adjusted manually by simple operations such as rotating the handle and replacing the tension spring. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1This is a schematic diagram of the structure of the inlet rubber tapping device of the utility model;

[0027] Figure 2 This is a structural schematic diagram of the inlet rubber tapping device from another angle of the utility model;

[0028] Figure 3 This is a schematic diagram of the internal structure of the inlet rubber tapping device of the utility model;

[0029] Figure 4 This is a schematic diagram of the internal structure of the inlet rubber tapping device of the utility model from another angle;

[0030] Figure 5 It is a partial enlarged view of the portion A of the inlet rubber tapping device of the utility model;

[0031] Figure 6 It is a partial enlarged view of the portion B of the inlet rubber tapping device of the utility model;

[0032] Figure 7 It is a schematic diagram of the actual use state of the entrance rubber tapping device of the utility model.

[0033] In the figure: 100, base plate; 200, opening and closing assembly; 210, first vertical plate; 220, second vertical plate; 230, translation structure; 231, translation slide rail; 232, translation slider; 233, first translation mounting plate; 234, second translation mounting plate; 235, stopper; 240, transfer structure; 241, first transfer plate; 242, second transfer plate; 250, opening and closing drive structure; 251, opening Open cylinder; 252, center torsion plate; 253, first connecting rod; 254, second connecting rod; 255, pad; 256, limit screw; 257, limit screw seat; 260, translation spring structure; 261, first translation spring hanging plate; 262, second translation spring hanging plate; 263, translation spring; 300, transmission structure; 310, first transmission assembly; 311, transmission top plate; 312, transmission bottom plate; 313, driving roller; 314, tensioning roller; 315, belt; 316, belt support plate; 317, transmission drive; 318, driving sprocket; 319, power sprocket; 321, chain; 320, second transmission assembly; 400, tool holder structure; 410, first tool holder; 411, tool holder seat plate; 4111, lifting slide rail; 4112, tool holder top plate; 4113, locking handle; 4114 , lifting screw; 4115, hand wheel; 4116, spacer; 412, lifting mounting plate; 4121, lifting slider; 4122, flange nut; 413, tension spring seat; 414, swing tension spring; 415, rocker arm; 416, cutter disc assembly; 4161, cutter disc; 4162, cutter disc depth limit plate; 4163, cutter disc seat; 4164, cutter disc drive; 417, swing guard plate; 420, second cutter holder. DETAILED DESCRIPTION

[0034] Below, in conjunction with the accompanying drawings and specific embodiments, the utility model is further described. It should be noted that, under the premise of no conflict, the various embodiments described below or the various technical features can be arbitrarily combined to form a new embodiment. Except for special instructions, the materials and equipment used in this embodiment can be purchased from the market. Examples of the embodiments are shown in the accompanying drawings, in which the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0035] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present application. In the description of the present application, "plurality" means two or more, unless otherwise precisely and specifically specified.

[0036] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "connected", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, or it can be connected through an intermediary medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0037] The terms "first", "second", etc. in the specification and claims of this application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0038] like Figure 1-7 As shown, this embodiment provides an inlet rubber tapping device for an automatic cigarette carton opening machine, comprising a base plate 100, an opening and closing assembly 200, a transmission structure 300, and a knife holder structure 400.

[0039] The base plate 100 is used to install the inlet rubber tapping device on the automatic cigarette carton opening machine and provide a supporting installation foundation for other components of the device.

[0040] The opening and closing assembly 200 is installed on the base plate 100, and the opening and closing assembly 200 includes a first vertical plate 210 and a second vertical plate 220. The first vertical plate 210 and the second vertical plate 220 are arranged at opposite ends of the base plate 100 in the length direction. A passage for the conveying assembly and cartons of the automatic cigarette carton opening machine to pass through is reserved between the first vertical plate 210 and the second vertical plate 220. The first vertical plate 210 and the second vertical plate 220 can be relatively close to or far away from each other.

[0041] The transmission structure 300 is installed on the top of the opening and closing component 200, and the transmission structure 300 includes a first transmission component 310 and a second transmission component 320. The first transmission component 310 is arranged on the first vertical plate 210, and the second transmission component 320 is arranged on the second vertical plate 220. The first transmission component 310 and the second transmission component 320 are used to clamp and transport both sides of the carton so that the carton passes through the channel.

[0042] The tool holder structure 400 includes a first tool holder 410 and a second tool holder 420, wherein the first tool holder 410 is connected to the first vertical plate 210, and the second tool holder 420 is connected to the second vertical plate 220; the first tool holder 410 and the second tool holder 420 are arranged on opposite sides of the channel, so that the first tool holder 410 and the second tool holder 420 can approach or move away from each other under the drive of the first vertical plate 210 and the second vertical plate 220, so as to cut the packing tape on opposite sides of the carton.

[0043] The first tool holder 410 includes a tool holder seat plate 411, a lifting installation plate 412, a tension spring seat 413, a swing tension spring 414, a swing rod 415 and a cutter head assembly 416; the tool holder seat plate 411 is fixed to the top of the first vertical plate 210 through a support seat mounting plate, and the support seat mounting plate provides a stronger structural stability for the first tool holder 410. The lifting installation plate 412 is slidably connected to the tool holder seat plate 411, and the sliding direction is the vertical direction. The tension spring seat 413 is fixed to one side of the lifting installation plate 412; two bearing seats are arranged on the lifting installation plate 412, and the two bearing seats are arranged coaxially, and the axes of the two bearing seats are arranged vertically. The end of the swing rod 415 is arranged between the two bearing seats, so that the swing rod 415 is hinged to the lifting installation plate 412, and the swing rod 415 can rotate relative to the lifting installation plate 412. The other end of the rocker arm 415 is connected to the knife disc assembly 416; one end of the swing tension spring 414 is connected to the tension spring seat 413, and the other end is connected to the rocker arm 415, and the swing tension spring 414 provides an elastic force for the knife disc assembly 416 at the end of the rocker arm 415 to approach the channel; the knife disc assembly 416 includes a knife disc 4161 and a knife disc depth limiting plate 4162; the knife disc 4161 has a blade edge that can cut the tape in its circumference, and the knife disc depth limiting plate 4162 has a depth limiting surface, which is arranged near the blade edge of the knife disc 4161, and the depth limiting surface is used to abut against the surface of the carton.

[0044] The entrance tapping device of the automatic cigarette carton opener of the present embodiment is provided for cutting the packing tape at the bonding point of the upper and lower flaps of the carton entering the automatic cigarette carton opener. The device is installed at the entrance of the automatic cigarette carton opener by connecting the two ends of the base plate 100 to the frame of the automatic cigarette carton opener. At this time, the conveying component of the automatic cigarette carton opener for conveying cartons is arranged in the channel formed by the first vertical plate 210 and the second vertical plate 220 carton on the opening and closing component 200, providing conveying and guiding functions for the cartons entering the automatic cigarette carton opener. When in use, the channel is opened by moving the first vertical plate 210 and the second vertical plate 220 on the opening and closing component 200 away from each other. At this time, the entrance rubber tapping device is in a pre-carton receiving state. When the carton enters the channel, the first vertical plate 210 and the second vertical plate 220 approach each other to make the channel and the carton size fit. At this time, the first transmission component 310 and the second transmission component 320 respectively arranged on the first vertical plate 210 and the second vertical plate 220 clamp and convey the opposite sides of the carton to make the carton pass through the channel. At the same time, the carton moves relative to the first knife holder 410 and the second knife holder 420 installed on the first vertical plate 210 and the second vertical plate 220, providing a cutting function for the packing tape at the bonding point of the upper and lower flaps of the carton. By arranging a swing spring 414 between the tension spring seat 413 and the swing rod 415, the swing spring 414 provides an elastic force for the swing rod 415 to rotate in the direction of the channel, so that the knife disc assembly 416 installed at the end of the swing rod 415 is close to the channel. When the carton passes through the channel, the knife disc assembly 416 is pressed against the side of the carton under the action of the elastic force. When facing some cigarette cartons of the same specification but different batches, or when there is a certain size error caused by the transmission gap, the knife disc assembly 416 can always be pressed against the side of the carton through the automatic adjustment effect of the swing spring 414; at the same time, by arranging a knife disc depth limit plate 4162 on the side of the knife disc 4161, the knife disc depth limit plate 4162 has a depth limit surface. When the knife disc 4161 cuts the tape packing tape between the upper and lower flaps of the carton, the depth limit surface abuts against the surface of the carton, thereby limiting the further penetration of the knife disc 4161 and reducing the risk of scratching the strip box inside the carton. The cutting depth is controlled by the distance between the depth limit surface and the edge of the knife disc 4161. It can realize the rubber tapping of cartons of different sizes within a certain range, and greatly improve the compatibility, practicality and stability of the automatic cigarette carton opening machine.

[0045] Furthermore, the knife disc assembly 416 of the present embodiment also includes a knife disc seat 4163 and a knife disc driving member 4164; one end of the knife disc seat 4163 is fixed to the swing rod 415, and the other end is used to install the knife disc driving member 4164, the knife disc driving member 4164 has an output end, the knife disc driving member 4164 is a servo motor, and the servo motor is installed on the servo motor seat from top to bottom; a coupling is installed on the output shaft of the servo motor; a knife disc 4161 is installed on the other end of the coupling, and the knife disc driving member 4164 provides power to drive the knife disc 4161 to rotate and cut the tape; knife disc depth limiting plates 4162 are provided on opposite sides of the knife disc 4161, and the two knife disc depth limiting plates 4162 are fixed to the knife disc seat 4163 through a fixing plate; the method of driving the knife disc 4161 by a motor and cooperating with the knife disc depth limiting plates 4162 to cut the packing tape between the upper and lower flaps of the carton is conducive to improving cutting efficiency and cutting effect.

[0046] A lifting slide rail 4111 is vertically arranged on the side of the tool holder base plate 411, and a tool holder top plate 4112 is arranged on the top. The tool holder top plate 4112 is provided with a through hole for installing a lifting screw 4114. A locking groove is circumferentially provided in the through hole, and a locking handle 4113 is arranged in the locking groove. The locking handle 4113 is installed on the end face of the tool holder top plate 4112 to provide a fastening effect for the lifting screw 4114 in the through hole in a shaft-holding manner; a lifting slider 4121 is fixed on the lifting mounting plate 412, and the lifting slider 4121 cooperates with the lifting slide rail 4111, and the vertically arranged lifting slide rail 4111 provides the tool holder base plate 411 with sliding and guiding functions, so that the lifting mounting plate 412 is slidably connected to the tool holder base plate 411, so that the knife disc 4161 installed on the lifting mounting plate 412 can be adjusted in the vertical direction to meet the needs of cutting carton flip lids at different heights.

[0047] A lifting screw 4114 is also provided between the tool holder seat plate 411 and the lifting mounting plate 412. The lifting screw 4114 of this embodiment is a trapezoidal screw. The lifting screw 4114 is arranged in parallel with the lifting slide rail 4111, and the upper end of the lifting screw 4114 extends out from above the tool holder top plate 4112 through the through hole; a hand wheel 4115 is fixed to the end of the lifting screw 4114 above the tool holder top plate 4112, and a spacer sleeve 4116 is provided between the hand wheel 4115 and the tool holder top plate 4112, and the spacer sleeve 4116 is sleeved on the circumference of the lifting screw 4114, and the spacer sleeve 4116 provides support for the trapezoidal bolt. The lifting screw 4114 below the tool holder top plate 4112 is threadedly connected with a flange nut 4122, and the outer side of the flange nut 4122 is fixed to the lifting mounting plate 412; the lifting screw 4114 is rotated by turning the hand wheel 4115, so that the flange nut 4122 moves axially in the lifting screw 4114, thereby adjusting the position of the knife disc 4161 on the lifting mounting plate 412 in the vertical direction; after the adjustment is completed, the locking groove is squeezed by the locking handle 4113, and the aperture of the through hole is reduced by holding the shaft, thereby locking the lifting screw 4114 in the through hole, limiting the further rotation of the lifting screw 4114, and locking the position of the knife disc 4161.

[0048] In this embodiment, torque is manually input to the lifting screw 4114 through the hand wheel 4115, which is low-cost and easy to adjust. In some other implementations, torque can also be input by a servo motor to improve the degree of automation of the equipment, and the position of the cutter disc 4161 can be adjusted. Technical personnel in this field can implement it according to actual conditions.

[0049] A swing guard plate 417 is disposed outside the lifting installation plate 412 and the lifting screw 4114, and the swing guard plate 417 has a limit surface that can limit excessive displacement of the swing rod 415. The swing guard plate 417 of this embodiment plays a protective role, and at the same time, the swing guard plate 417 can limit the swing rod 415 from rotating in a direction away from the channel, preventing the swing tension spring 414 from breaking and causing the swing rod 415 to reverse and pop out accidentally, thereby further improving the safety of the equipment.

[0050] The second tool holder 420 of this embodiment has the same structure as the first tool holder 410. The two are arranged opposite to each other and jointly cut the tape on opposite sides of the carton. The specific structure of the second tool holder 420 will not be described here in detail, and can be understood by those skilled in the art.

[0051] The opening and closing assembly 200 serves as the installation and adjustment basis of the transmission structure 300 and the tool holder structure 400. The opening and closing assembly 200 of this embodiment includes a translation structure 230, a transfer structure 240, an opening and closing drive structure 250 and a translation tension spring structure 260. The first vertical plate 210 and the second vertical plate 220 are respectively slidably connected to the base plate 100 through the transfer structure 240 and the translation structure 230, and the first vertical plate 210 and the second vertical plate 220 are synchronously moved closer to or away from each other through the transfer structure 240 and the translation structure 230; the opening and closing drive structure 250 provides power to make the first vertical plate 210 and the second vertical plate 220 move away from and closer to each other, and the elastic force of the translation tension spring structure 260 makes the first vertical plate 210 and the second vertical plate 220 move closer to each other and eliminate the transmission gap at the same time.

[0052] Specifically, the opening and closing assembly 200 includes a translation structure 230, which is arranged at the bottom of the base plate 100. The translation structure 230 includes a translation rail 231, a translation slider 232, a first translation mounting plate 233 and a second translation mounting plate 234; the translation rail 231 is arranged along the length direction of the base plate 100. In this embodiment, a double slide rail is used, and the two translation rails 231 are arranged in parallel along the direction of the base plate 100. Four translation sliders 232 are sleeved on each translation rail 231, and there are a total of eight translation sliders 232, which are used to connect the first translation mounting plate 233 and the second translation mounting plate 234. The four corners of the first translation mounting plate 233 and the second translation mounting plate 234 are fixed to the translation slider 232 respectively. The first translation mounting plate 233 and the second translation mounting plate 234 are slidably connected to the bottom of the substrate 100 through the sliding cooperation between the translation slider 232 and the translation rail 231; limiting members 235 are respectively arranged at both ends of the translation rail, and the limiting members 235 are made of PU pads. The limiting members 235 are used to limit the extreme positions of the first translation mounting plate 233 and / or the second translation mounting plate 234, and provide a hard limiting function for outward movement to prevent excessive displacement of the first translation mounting plate 233 and / or the second translation mounting plate 234.

[0053] The adapter structure 240 of the opening and closing component 200 includes a first adapter plate 241 and a second adapter plate 242, and the first adapter plate 241 and the second adapter plate 242 are L-shaped; the number of the first adapter plates 241 is 2, and the two first adapter plates 241 are arranged at both ends of the first translation mounting plate 233, the bottom of the first adapter plate 241 is fixed to the end of the first translation mounting plate 233, and the top of the first adapter plate 241 is fixed to the first vertical plate 210, so that the first vertical plate 210 can move along the length direction of the substrate 100; the number of the second adapter plates 242 is 2, and the two second adapter plates 242 are arranged at both ends of the second translation mounting plate 234, the bottom of the second adapter plate 242 is fixed to the end of the second translation mounting plate 234, and the top of the second adapter plate 242 is fixed to the second vertical plate 220, so that the first vertical plate 210 can move along the length direction of the substrate 100.

[0054] The opening and closing driving structure 250 of the opening and closing assembly 200 includes an opening cylinder 251, a central torsion plate 252, a first connecting rod 253 and a second connecting rod 254. The middle part of the central torsion plate 252 is rotatably connected to the base plate 100 through a rotating shaft, so that the central torsion plate 252 can rotate relative to the base plate 100; the two ends of the central torsion plate 252 are respectively hinged to the first connecting rod 253 and the second connecting rod 254; the other end of the first connecting rod 253 is hinged to the first adapter plate 241; the other end of the second connecting rod 254 is hinged to the second adapter plate 242; The opening cylinder 251 is fixed to the base through a cylinder seat, and the opening cylinder 251 has a telescopic rod, and the telescopic rod of the opening cylinder contacts the first vertical plate 210 through a pad 255, and the pad 255 is a PU pad; the opening cylinder 251 pushes the first vertical plate 210 to move toward the end of the base plate 100, and the first connecting rod 253 drives the central torsion plate 252 to rotate, and drives the second connecting rod 254 to push the second vertical plate 220 to move synchronously, so as to achieve the synchronous opening and closing of the first vertical plate 210 and the second vertical plate 220 toward the two ends of the base plate 100. Compared with the traditional gear rack matching method, the transmission cooperation of the opening cylinder 251 and the central torsion plate 252 to control the first vertical plate 210 and the second vertical plate 220 can achieve stepless regulation and improve control accuracy.

[0055] The opening and closing driving structure 250 also includes a limit screw 256 and a limit screw seat 257. The limit screw 256 and the limit screw seat 257 are connected by threads. A nut is sleeved on the limit screw 256. By sleeved nuts on the limit screws 256 on both sides of the limit screw seat 257, the limit screw seat 257 is clamped and positioned. The limit screw seat 257 is symmetrically arranged at the opposite position of the opening cylinder 251 with the center torsion plate 252 as the center. The limit screw 256 is sleeved on the side close to the second adapter plate 242 to limit the extreme position of the first translation mounting plate 233 and the second translation mounting plate 234 moving toward the center; by rotating the limit screw 256, the relative position of the limit screw 256 and the limit screw seat 257 is adjusted, thereby adjusting the extreme position of the first translation mounting plate 233 and the second translation mounting plate 234 moving toward the center.

[0056] The translation spring structure 260 of the opening and closing component 200 includes a first translation spring hanging plate 261, a second translation spring hanging plate 262 and a translation spring 263; the first translation spring hanging plate 261 is fixed to the first adapter plate 241, and the second translation spring hanging plate 262 is fixed to the second adapter plate 242, and the first translation spring hanging plate 261 and the second translation spring hanging plate 262 are arranged on the same side close to the substrate 100; one end of the translation spring 263 is fixed to the first translation spring hanging plate 261, and the other end is fixed to the second translation spring hanging plate 262. The translation spring 263 provides an elastic force to move the first translation spring hanging plate 261 and the second translation spring hanging plate 262 closer to each other, thereby helping the first vertical plate 210 and the second vertical plate 220 to move closer to the carton, reducing the error caused by the transmission gap, and improving the cutting accuracy.

[0057] The transmission structure 300 of this embodiment includes a first transmission component 310 and a second transmission component 320. The first transmission component 310 is arranged on the first vertical plate 210, and the second transmission component 320 is arranged on the second vertical plate 220. The first transmission component 310 and the second transmission component 320 are used to clamp and transport both sides of the carton so that the carton passes through the channel.

[0058] The first transmission assembly 310 includes a transmission top plate 311, a transmission bottom plate 312, an active roller 313, a tensioning roller 314, a belt 315 and a belt support plate 316; the transmission top plate 311 of this embodiment also serves as a support seat mounting plate for connecting the tool holder seat plate 411 to the top of the first vertical plate 210, and has corresponding strength and support, providing stronger structural stability for the first transmission assembly 310 and the first tool holder 410. The transmission top plate 311 and the transmission bottom plate 312 are fixed to the first vertical plate 210 in parallel, the active roller 313 is connected to the ends of the transmission top plate 311 and the transmission bottom plate 312, the upper end of the active roller 313 is connected to the transmission top plate 311 through a seat bearing, and the lower end of the active roller 313 is connected to the transmission bottom plate 312 through a seat bearing;

[0059] The transmission top plate 311 and the transmission bottom plate 312 are both provided with tensioning grooves at corresponding positions at the ends away from the active roller shaft 313. The upper end of the tensioning roller shaft 314 is slidably connected to the tensioning groove of the transmission top plate 311, and the lower end of the tensioning roller shaft 314 is slidably connected to the tensioning groove of the transmission bottom plate 312, so that the active roller shaft 313 and the tensioning roller shaft 314 are respectively rotatably connected to the opposite ends of the transmission top plate 311 and the transmission bottom plate 312; the active roller shaft 313 is provided with a first pulley, and the surface of the tensioning roller shaft 314 is provided with a second pulley. The first pulley and the second pulley are arranged between the transmission top plate 311 and the transmission bottom plate 312, and the belt 315 is sleeved on the circumference of the first pulley and the second pulley; the tensioning force of the belt 315 is adjusted by moving the tensioning roller 314 in the tensioning groove; the belt support plate 316 is fixed to the transmission top plate 311 and the transmission bottom plate 312 on opposite sides respectively, and the belt support plate 316 provides support for the belt 315 on the working surface, so that the surface of the belt 315 is close to the carton to clamp and convey the carton.

[0060] An avoidance hole is provided on the first vertical plate 210; the first transmission component 310 also includes a transmission driver 317, a driving sprocket 318, a power sprocket 319 and a chain 321; the transmission driver 317 is fixed to the outer side of the first vertical plate 210 through a motor seat, the transmission driver 317 is a servo motor, and the transmission driver 317 is fixed to the motor seat from bottom to top; the transmission driver 317 has an output shaft, the driving sprocket 318 is arranged on the output shaft of the transmission driver 317, the power sprocket 319 is arranged at the end of the active roller shaft 313, and the chain 321 passes through the avoidance hole and is sleeved on the driving sprocket 318 and the power sprocket 319 in the circumference; the power sprocket 319 is driven to rotate by the transmission driver 317, thereby driving the belt 315 to move, so that the carton passes through the channel and translates relative to the tool holder structure 400 to cut the packing tape.

[0061] The first transmission component 310 of the present embodiment further includes a chain 321 guard plate, which is disposed on the outer side of the first vertical plate 210 . The chain 321 guard plate has a protective space for accommodating the driving sprocket 318 and the transmission driving member 317 .

[0062] The entrance tapping device of the automatic cigarette carton opening machine of this embodiment is provided for cutting the packing tape at the bonding point of the upper and lower flaps of the carton entering the automatic cigarette carton opening machine. While the first vertical plate 210 on one side is pushed outward by the opening cylinder 251 to make it move outward, the second vertical plate 220 on the other side is driven outward by the central torsion plate 252. The two translation slide rails 231 installed at the bottom of the base plate 100 provide guidance and support for the opening action. After the first vertical plates 210 and the second vertical plates 220 on both sides are opened outward, they are in a state of pre-receiving cartons. When the carton enters this device, after the expansion cylinder is retracted, the first vertical plates 210 and the second vertical plates 220 on both sides are pulled toward the center by the translation tension spring structure 260 to complete the closing action. At this time, the belts 315 on both sides clamp the carton through the translation tension spring 263, and the transmission drive The movable part 317 rotates by itself and drives the belt 315 to rotate to provide a conveying function for the carton; the minimum distance between the knife disc 4161 of the first knife holder 410 and the knife disc 4161 of the second knife holder 420 is less than the distance between the clamping surfaces of the two sets of belts 315, and the knife disc driving part 4164 rotates to drive the knife disc 4161 to rotate to provide a cutting function for the packing tape at the bonding point of the upper and lower flaps of the carton; the swing tension spring 414 provides the knife disc depth limit plate with the function of closing to the carton; the rotating handwheel 4115 can adjust the height of the knife disc 4161 through the cooperation of the lifting screw 4114 and the flange nut 4122, so that the knife disc 4161 coincides with the gap between the upper and lower flaps to prevent the knife disc 4161 from scratching the carton.

[0063] The independent transmission structure 300 of the device is arranged to control the speed of carton transfer and the stability of carton transfer, to ensure the success rate of the first step of unpacking, and to avoid the failure of the first step leading to the inability to carry out the subsequent unpacking steps. The design of the height-adjustable cutter disc 4161, the translation tension spring 263 and the swing tension spring 414 can realize the flexible control of the carton tapping and conveying action, and realize the tapping of cartons of different sizes within a certain range, further expanding the compatibility, practicality and stability of the equipment. The equipment can be adjusted manually by simple operations such as rotating the handle and replacing the tension spring.

[0064] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. An inlet rubber tapping device for an automatic cigarette carton opening machine, characterized in that: It includes a base plate, an opening and closing component, a transmission structure and a tool holder structure; The opening and closing assembly is mounted on the base plate, and the opening and closing assembly includes a first vertical plate and a second vertical plate, the first vertical plate and the second vertical plate are arranged on two opposite sides of the base plate, a passage for the carton to pass through is formed between the first vertical plate and the second vertical plate, and the first vertical plate and the second vertical plate can be close to or away from each other; The transmission structure is installed on the top of the opening and closing assembly and is used to transmit the cartons so that the cartons pass through the passage; The tool holder structure includes a first tool holder and a second tool holder, the first tool holder is connected to the first vertical plate, and the second tool holder is connected to the second vertical plate; the first tool holder and the second tool holder are arranged on opposite sides of the channel; the first tool holder includes a tool holder seat plate, a lifting mounting plate, a tension spring seat, a swing tension spring, a swing rod and a knife disc assembly; the end of the tool holder seat plate is connected to the first vertical plate; the lifting mounting plate is slidably connected to the tool holder seat plate, and the tension spring seat is fixed to the lifting mounting plate; one end of the swing rod is hinged to the lifting mounting plate, and the other end is connected to the knife disc assembly; one end of the swing tension spring is connected to the tension spring seat, and the other end is connected to the swing rod, and the swing tension spring provides an elastic force for the knife disc assembly at the end of the swing rod to approach the channel; the knife disc assembly includes a knife disc and a knife disc depth limit plate; the knife disc has a blade edge that can cut the tape in the circumferential direction, and the knife disc depth limit plate has a depth limit surface, which is arranged close to the knife disc blade edge, and the depth limit surface is used to abut against the surface of the carton.

2. The inlet rubber tapping device of the automatic cigarette carton opening machine according to claim 1 is characterized in that: The cutter disc assembly also includes a cutter disc seat and a cutter disc drive; one end of the cutter disc seat is fixed to the rocker arm, and the other end is used to install the cutter disc drive, the cutter disc drive has an output end, the output end of the cutter disc drive is connected to the cutter disc through a coupling, and the cutter disc drive provides power to drive the cutter disc to rotate and cut the tape; cutter disc depth limit plates are provided on opposite sides of the cutter disc, and the two cutter disc depth limit plates are fixed to the cutter disc seat through a fixing plate.

3. The inlet rubber tapping device of the automatic cigarette carton opening machine according to claim 2 is characterized in that: A lifting rail is vertically arranged on the side of the tool holder seat plate, a tool holder top plate is arranged on the top of the tool holder seat plate, a through hole is opened on the tool holder top plate, a locking groove is opened in the circumference of the through hole, and a locking handle is arranged in the locking groove; a lifting slider is fixed on the lifting installation plate, and the lifting slider cooperates with the lifting rail to make the lifting installation plate slidably connected to the tool holder seat plate, so that the lifting installation plate can move in the vertical direction; A lifting screw is also provided between the tool holder seat plate and the lifting mounting plate, the lifting screw is arranged in parallel with the lifting slide rail, and the end of the lifting screw extends out from the top of the tool holder top plate through the through hole; a hand wheel is fixed to the end of the lifting screw above the tool holder top plate, and a spacer is provided between the hand wheel and the tool holder top plate, and the spacer is sleeved on the circumference of the lifting screw; a flange nut is screwed to the lifting screw below the tool holder top plate, and the outer side of the flange nut is fixed to the lifting mounting plate; the lifting screw is rotated by turning the hand wheel, so that the flange nut moves axially on the lifting screw, driving the lifting mounting plate to move in the vertical direction; The lifting installation plate and the outer side of the lifting screw are provided with a swing guard plate, the swing guard plate plays a protective role, and the swing arm is restricted from rotating in a direction away from the channel by the swing guard plate.

4. The inlet rubber tapping device of the automatic cigarette carton opening machine according to claim 1 is characterized in that: The opening and closing component includes a translation structure, which includes a translation rail, a translation slider, a first translation mounting plate and a second translation mounting plate; the translation rail is arranged at the bottom of the base plate, and the translation rail is arranged along the length direction of the base plate. A plurality of translation sliders are fixed on the top of the first translation mounting plate and the second translation mounting plate, and the first translation mounting plate and the second translation mounting plate are slidably connected to the bottom of the base plate through the cooperation of the translation slider and the translation rail; limiting members are respectively arranged at both ends of the translation rail, and the limiting members are used to limit the extreme positions of the first translation mounting plate and / or the second translation mounting plate.

5. The inlet rubber tapping device of the automatic cigarette carton opening machine according to claim 4 is characterized in that: The opening and closing component also includes a transfer structure, and the transfer structure includes a first transfer plate and a second transfer plate, and the first transfer plate and the second transfer plate are L-shaped; the number of the first transfer plates is 2, and the two first transfer plates are arranged at both ends of the first translation mounting plate, the bottom of the first transfer plate is fixed to the first translation mounting plate, and the top of the first transfer plate is fixed to the first vertical plate, so that the first vertical plate can move along the length direction of the substrate; the number of the second transfer plates is 2, and the two second transfer plates are arranged at both ends of the second translation mounting plate, the bottom of the second transfer plate is fixed to the second translation mounting plate, and the top of the second transfer plate is fixed to the second vertical plate, so that the first vertical plate can move along the length direction of the substrate.

6. The inlet rubber tapping device of the automatic cigarette carton opening machine according to claim 5 is characterized in that: The opening and closing assembly also includes an opening and closing driving structure, which includes an opening cylinder, a central torsion plate, a first connecting rod and a second connecting rod. The middle part of the central torsion plate is rotatably connected to the base plate through a rotating shaft, so that the central torsion plate can rotate relative to the base plate; the two ends of the central torsion plate are respectively hinged to the first connecting rod and the second connecting rod; the other end of the first connecting rod is hinged to the first adapter plate; the other end of the second connecting rod is hinged to the second adapter plate; the opening cylinder is fixed to the base through a cylinder seat, and the opening cylinder has a telescopic rod, and the telescopic rod of the opening cylinder contacts with the first vertical plate through a pad; the first vertical plate is pushed to move toward the end of the base plate by the opening cylinder, and the central torsion plate is driven to rotate by the first connecting rod, which drives the second connecting rod to push the second vertical plate to move synchronously, thereby realizing the synchronous opening and closing of the first vertical plate and the second vertical plate to the two ends of the base plate.

7. The inlet rubber tapping device of the automatic cigarette carton opening machine according to claim 6 is characterized in that: The opening and closing driving structure also includes a limit screw and a limit screw seat, the limit screw seat is arranged on the base plate, the limit screw seat and the cylinder seat are symmetrically arranged with respect to the central torsion plate rotation axis, and the limit screw and the limit screw seat are connected by threads; nuts are respectively arranged on both sides of the threaded connection between the limit screw and the limit screw; a PU anti-collision pad is arranged at one end of the limit screw close to the second vertical plate, and when the first translation mounting plate and the second translation mounting plate reach the extreme position of moving toward the center, the PU anti-collision pad abuts against the second vertical plate.

8. The inlet rubber tapping device of the automatic cigarette carton opening machine according to claim 6 is characterized in that: The opening and closing assembly also includes a translational tension spring structure, which includes a first translational tension spring hanging plate, a second translational tension spring hanging plate and a translational tension spring; the first translational tension spring hanging plate is fixed to the first adapter plate, the second translational tension spring hanging plate is fixed to the second adapter plate, and the first translational tension spring hanging plate and the second translational tension spring hanging plate are arranged on the same side close to the substrate; one end of the translational tension spring is fixed to the first translational tension spring hanging plate, and the other end is fixed to the second translational tension spring hanging plate, and the translational tension spring provides an elastic force for the first translational tension spring hanging plate and the second translational tension spring hanging plate to approach each other.

9. The inlet rubber tapping device of the automatic cigarette carton opening machine according to claim 1 is characterized in that: The transmission structure includes a first transmission component and a second transmission component, wherein the first transmission component is disposed on the first vertical plate, and the second transmission component is disposed on the second vertical plate, and the first transmission component and the second transmission component are used to clamp and transport both sides of the carton so that the carton passes through the channel; The first transmission component includes a transmission top plate, a transmission bottom plate, an active roller shaft, a tensioning roller shaft, a belt and a belt support plate; the transmission top plate and the transmission bottom plate are fixed parallel to the first vertical plate, and the two ends of the active roller shaft are respectively connected to the transmission top plate and the end of the transmission bottom plate through bearings; the transmission top plate and the transmission bottom plate are respectively provided with tensioning grooves at one end away from the active roller shaft; the two ends of the tensioning roller shaft are respectively slidably connected to the tensioning grooves on the transmission top plate and the transmission bottom plate; a first pulley is arranged on the active roller shaft, and a second pulley is arranged on the surface of the tensioning roller shaft, the first pulley and the second pulley are arranged between the transmission top plate and the transmission bottom plate, and the belt is sleeved on the circumference of the first pulley and the second pulley; the opposite sides of the belt support plate are respectively fixed to the transmission top plate and the transmission bottom plate, and the belt surface is made to close to the carton through the belt support plate.

10. The inlet rubber tapping device of the automatic cigarette carton opening machine according to claim 9, characterized in that: The first vertical plate is provided with an avoidance hole; The first transmission assembly also includes a transmission drive, a driving sprocket, a power sprocket and a chain; the transmission drive is fixed to the outer side of the first vertical plate through a motor seat, the transmission drive has an output shaft, the driving sprocket is arranged on the output shaft of the transmission drive, the power sprocket is arranged at the end of the active roller shaft, and the chain passes through the avoidance hole and is sleeved on the circumference of the driving sprocket and the power sprocket; the power sprocket is driven to rotate by the transmission drive, thereby driving the belt to move, so that the carton passes through the channel and translates relative to the knife frame structure to cut the packing tape; The first transmission component also includes a chain guard plate, which is arranged on the outer side of the first vertical plate, and has a protective space that can accommodate the active sprocket and the transmission drive member.

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