Random full-automatic H-shaped carton sealing machine

Abstract

The invention relates to the technical field of carton sealing machines, and discloses a random full-automatic H-shaped carton sealing machine which comprises a machine base, a conveying channel is formed in the machine base, conveying rollers are rotatably arranged in the conveying channel at equal intervals, limiting track beams are symmetrically arranged on the two sides of the outer portion of the machine base, and a lifting table is movably arranged between the two limiting track beams; the right side of the lifting table is connected with a driving box through a welding frame, a swing pressing rod is movably arranged at the right end of the driving box, a rotary pressing rod is movably arranged at the lower end of the driving box, and the left side of the lifting table is connected with a box sealing machine core. A servo motor drives a gear to rotate, an adjusting gear rotates through meshing, a positioning main rod provides adjusting acting force, an inclined rod drives a side pressing plate to do curvilinear motion, the side pressing plate is better attached to an outer rocking cover, meanwhile, the movement degree of the side pressing plate is adjusted according to the actual situation, it is ensured that a tension spring is normally compressed, and the situation of machine clamping is avoided; adjustability is high, and cartons of different sizes can be adapted.

Description

Technical Field

[0001] The present invention relates to the technical field of carton sealing machines, and particularly relates to a random full-automatic H-shaped carton sealing machine. Background Art

[0002] A carton sealing machine is a commonly used packaging machine, mainly used for sealing cartons or paper boxes. It is suitable for single-machine operation or for forming an automated packaging production line with an unpacking machine, a packing machine, etc. It uses BOPP instant adhesive tape (carton sealing tape) to seal cartons, and can seal both the upper and lower sides of the carton simultaneously. It has the characteristics of fast packaging speed, high efficiency, and good appearance. According to the degree of automation, it can be divided into a full-automatic carton sealing machine and a semi-automatic carton sealing machine. The full-automatic carton sealing machine can automatically adjust the size of the carton, and the sealing speed reaches 400 - 1200 cartons / hour, which is suitable for large-scale production. The semi-automatic carton sealing machine requires manual assistance for adjustment and is suitable for small-batch and multi-specification scenarios.

[0003] Existing full-automatic H-shaped carton sealing machines have many technical defects during use. First, the belt conveyor used to clamp the carton is directly driven by a single set of cylinders, and the movement stability and control performance of the two belt conveyors are poor. When stopping, it is easily affected by the forces of the carton and the belt and generates large vibrations, resulting in a lack of precise positioning of the carton. Second, considering issues such as the current quality of the carton sealing machine core and the bonding effect of corrugated paper and tape, after the carton is sealed, air bubbles and wrinkles are likely to appear at the edge position of the tape, resulting in loose sealing. Third, when using the side pressing plate to press the outer flap, due to the different sizes of the outer flaps of cartons of different sizes, the fitting and pressing effect between the side pressing plate and the outer flap is poor. Coupled with different contact forces, it is impossible to ensure the normal expansion and contraction of the tension spring, and it is easy to cause machine jamming.

[0004] In summary, considering that the existing facilities cannot meet the working requirements, for this reason, we propose a random full-automatic H-shaped carton sealing machine. Summary of the Invention

[0005] The main purpose of the present invention is to provide a random full-automatic H-shaped carton sealing machine, which can effectively solve the problems in the background art.

[0006] To achieve the above purpose, the technical solution adopted by the present invention is as follows: A random full-automatic H-shaped carton sealer, comprising a machine base. A transportation channel is provided inside the machine base. A number of transportation rollers are rotatably arranged at equal intervals inside the transportation channel. The number of the transportation rollers is preferably 10-16 groups. On both sides of the outside of the machine base, limiting track beams are symmetrically arranged. A lifting table is movably arranged between the two groups of limiting track beams. A traction mechanism is arranged at the upper end of the lifting table. The right side of the lifting table is connected with a driving box through a welding frame. A swinging pressure rod is movably arranged at the right end of the driving box. A rotating pressure rod is movably arranged at the lower end of the driving box. The swinging pressure rod and the rotating pressure rod respectively act on two inner flaps of a carton. The left side of the lifting table is connected with a carton sealing core.

[0007] As a preferred scheme of the random full-automatic H-shaped carton sealer of the present invention, wherein: Two groups of carton clamping belt conveyors are symmetrically arranged inside the transportation channel and above the transportation rollers. A carton clamping belt is movably arranged on the carton clamping belt conveyor. A number of connecting seats are welded at equal intervals at the lower end of the carton clamping belt conveyor. Inside each connecting seat, a sliding sleeve sleeved outside the transportation roller is fixed. The number of the connecting seats and the sliding sleeves is preferably 4-8 groups. The lower ends of some of the connecting seats are provided with upper rack bars.

[0008] As a preferred scheme of the random full-automatic H-shaped carton sealer of the present invention, wherein: Two groups of double-acting cylinders are horizontally arranged at the bottom of the transportation channel and below the transportation rollers. The number of the double-acting cylinders is preferably 2 groups. Cylinder rods are movably arranged at the front and rear ends of each double-acting cylinder. A lower rack bar is connected to the end of each cylinder rod. The lower rack bar and the corresponding upper rack bar are meshed by a precision gear. The precision gear is sleeved on a gear shaft. Both ends of the gear shaft are fixed to the inner wall of the transportation channel through first bearing seats.

[0009] As a preferred scheme of the random full-automatic H-shaped carton sealer of the present invention, wherein: A circular locking port is provided at one end of the gear shaft. A shock-absorbing locking structure is arranged on the horizontal outside of the circular locking port. The shock-absorbing locking structure includes a hydraulic device, a telescopic rod, a circular arc head and locking flap pieces. The hydraulic device is horizontally fixed. The telescopic rod is movably arranged outward inside the hydraulic device. The end of the telescopic rod is welded to the concave surface of the circular arc head. A number of locking flap pieces acting on the circular locking port are evenly distributed on the circular arc head. The number of the locking flap pieces is preferably 4-6 groups.

[0010] As a preferred embodiment of the random full-automatic H-shaped carton sealer of the present invention, the following is provided: on both outer sides of the carton sealer core, there are symmetrically riveted outer casings. Inside the outer casings, there is a positioning main rod horizontally arranged. The positioning main rod is fixed inside the outer casings through two groups of first riveting blocks. The right end of the positioning main rod extends outward and is welded with an inclined rod. The inclined rod extends upward and is connected to the back of the side pressing plates through two groups of positioning bearings. The upper ends of the two groups of side pressing plates are respectively connected to the bottom of the welding frame through tension springs. The two groups of side pressing plates respectively act on the two outer flaps of the carton.

[0011] As a preferred embodiment of the random full-automatic H-shaped carton sealer of the present invention, the following is provided: at the left end of the machine base, there is a transfer seat connected. On the upper end of the transfer seat, there is an inclined glue pressing box. Inside the glue pressing box, there is an inner chamber penetratingly opened. At the bottom of the inner chamber, there is a curved conveyor. The curved conveyor includes an inwardly concave conveyor belt. At both ends of the curved conveyor, there are symmetrically arranged side baffles. The number of side baffles is 2 groups.

[0012] As a preferred embodiment of the random full-automatic H-shaped carton sealer of the present invention, the following is provided: on the top of the glue pressing box, there is a lifting cylinder. Inside the lifting cylinder, there is a lifting rod moving downward. The lower end of the lifting rod is welded with a pressing seat. At the top of the inner chamber, there is a limiting inner groove for receiving the pressing seat. Inside the pressing seat, there are two groups of roller grooves symmetrically opened downward. On one side or both sides of the two groups of roller grooves, there are flat pressing plates. The number of flat pressing plates is 1 - 2 groups.

[0013] As a preferred embodiment of the random full-automatic H-shaped carton sealer of the present invention, the following is provided: in each group of roller grooves, there is a rotating roller movably arranged. A part of the rotating roller extends out of the roller groove. At both ends of the rotating roller, there are symmetrically welded short shafts. The short shafts are respectively fixed to the groove walls of the roller grooves through second bearing seats. One of the short shafts extends outward and is connected with a constant-speed motor through a coupling. On the roller surface of the rotating roller, there are evenly opened elastic activity grooves. In each group of elastic activity grooves, there is an elastic glue pressing block installed. The elastic glue pressing block extends out of the elastic activity groove and acts on the edge of the tape. On one end or both ends of the elastic glue pressing block, there is a side pressing surface.

[0014] As a preferred embodiment of the random full-automatic H-shaped carton sealer of the present invention, the following is provided: on the short shaft of one of the rotating rollers, there is a first synchronous sprocket sleeved. The first synchronous sprocket and the second synchronous sprocket are connected by a chain. The second synchronous sprocket is sleeved on a transition shaft. The transition shaft is fixed to the inner wall of the pressing seat through a third bearing seat. On the transition shaft, there is also a first synchronous gear sleeved. At the lower end of the first synchronous gear, there is a second synchronous gear meshed. The second synchronous gear is sleeved on the short shaft of the other rotating roller.

[0015] As a preferred embodiment of the random full-automatic H-shaped carton sealer of the present invention, the positioning main rod is movably arranged in the outer shell through two groups of inner bearings. The inclined rod is fixed to the back of the side pressing plate through two groups of second riveting blocks. A regulating gear is sleeved in the middle of the positioning main rod. A driving gear is meshed on one side of the regulating gear, and the driving gear is sleeved on the output shaft of the servo motor.

[0016] As a preferred embodiment of the random full-automatic H-shaped carton sealer of the present invention, a spiral corrector is obliquely installed on the top of each side pressing plate. The spiral corrector includes a sensitive bearing, a rotating rod, spiral vanes, and a resistance airbag. The rotating rod is connected to the inside of the side pressing plate through the sensitive bearing. The part of the rotating rod extending out of the side pressing plate is provided with spiral vanes. The space between adjacent spiral vanes is filled with a resistance airbag. Both the spiral vanes and the resistance airbag are in contact with the edge part of the outer cover.

[0017] The present invention provides a random full-automatic H-shaped carton sealer through improvement. Compared with the prior art, it has the following significant improvements and advantages: Start the double-acting cylinder. The two cylinder rods extend outwards simultaneously, causing the lower rack bar to move linearly outwards. Through the meshing transmission of the precision gear, the two upper rack bars move linearly towards each other respectively, driving the two clamping belt conveyors to move closer to each other. The clamping belt contacts the side of the carton to clamp the carton in the middle. It has the advantages of high transmission precision and strong synchronism. At the same time, the sliding sleeve slides smoothly along the conveying roller. On the one hand, it improves the movement stability of the clamping belt conveyor. On the other hand, it applies an axial force to the conveying roller to prevent the conveying roller from rotating during the process of adjusting the position of the carton and interfering with the carton positioning.

[0018] The hydraulic device works, and the telescopic rod extends horizontally, driving the arc head to insert into the corresponding circular locking port. At the same time, several groups of locking petals are forced into the circular locking port and are elastically clamped in the circular locking port by the elasticity of the petals to lock the precision gear, the lower rack bar, and the upper rack bar in a related manner, reducing the vibration when the clamping belt conveyor stops and solving the technical problem of unstable cylinder drive.

[0019] Start the constant-speed motor to drive one of the rotating rollers to rotate, and through a series of transmissions, cause the other rotating roller to rotate in the opposite direction. When the elastic pressing rubber blocks are moving in a circular motion, they slide from the middle position of the sealing tape to the edge position respectively to press the tape on the outer cover, removing air bubbles and wrinkles. After repeating many times, the quality of the sealing is significantly improved. As the carton moves, different positions can be pressed. At the same time, when the elastic pressing rubber blocks move with the rotating rollers, the side pressing surface can be used to press the sealing tape on the end face to ensure full coverage and high flexibility.

[0020] Start the servo motor to drive the drive gear to rotate, and through meshing, make the adjustment gear rotate. The positioning main rod provides an adjustment force, causing the inclined rod to drive the side pressure plate to perform a curvilinear motion, increasing the movement range of the side pressure plate, better fitting the outer swing cover. At the same time, adjust the movement degree of the side pressure plate according to the actual situation to ensure that the tension spring is normally compressed and avoid jamming. It has a high degree of automation and strong adjustability, and is suitable for cartons of different sizes.

[0021] Relative movement occurs between the side pressure plate and the outer swing cover. During the relative movement, the edge of the outer swing cover and the resistance airbag of the rotating rod intermittently generate friction. The resistance airbag also has the function of flexible protection, causing the rotating rod to rotate around the sensitive bearing, so that the spiral piece contacts the curling position of the outer swing cover and applies a spiral force to it to flatten it, solving the technical problem of carton flanging, facilitating subsequent sealing and gluing, and having a high degree of automation. Brief Description of the Drawings

[0022] Figure 1 It is a schematic diagram of the overall structure of a random full-automatic H-shaped carton sealer of the present invention in one direction; Figure 2 It is a schematic diagram of the overall structure of a random full-automatic H-shaped carton sealer of the present invention in another direction; Figure 3 It is a schematic diagram of the transmission structure of the carton clamping belt conveyor of the present invention; Figure 4 It is a schematic diagram of the external structure of the carton clamping belt conveyor of the present invention; Figure 5 It is a schematic diagram of the specific structure of the shock-absorbing locking structure of the present invention; Figure 6 It is a schematic diagram of the connection of the side pressure plate in Embodiment 1 of the present invention; Figure 7 It is a schematic diagram of the internal structure of the glue pressing box of the present invention; Figure 8 It is a schematic diagram of the connection of the pressing seat of the present invention; Figure 9 It is a schematic diagram of the internal structure of the pressing seat of the present invention; Figure 10 It is a schematic diagram of the transmission structure of two groups of rotating rollers of the present invention; Figure 11 It is a schematic diagram of the connection of the side pressure plate in Embodiment 2 of the present invention; Figure 12 It is a schematic diagram of the transmission structure of the positioning main rod of the present invention; Figure 13 It is a schematic diagram of the specific structure of the spiral corrector of the present invention.

[0023] In the figure: 1, machine base; 2, transportation channel; 3, transportation roller; 4, limit track beam; 5, lifting platform; 6, welding rack; 7, drive box; 8, swing pressure bar; 9, rotating pressure bar; 10, case sealing core; 11, case clamping belt conveyor; 12, case clamping belt; 13, connecting seat; 14, sliding sleeve; 15, upper rack bar; 20, double-acting cylinder; 21, cylinder rod; 22, lower rack bar; 23, precision gear; 24, gear shaft; 25, first bearing seat; 26, circular locking opening; 30, shock absorption locking structure; 31, hydraulic device; 32, telescopic rod; 33, arc head; 34, locking flap; 40, outer shell; 41, positioning main rod; 42, first riveting block; 43, inclined rod; 44, side pressing plate; 45, positioning bearing; 46, tension spring; 50, rubber pressing case; 51, inner chamber; 52, curved conveyor; 53, side baffle; 54, lifting cylinder; 55, lifting rod; 56, pressing seat; 57, roller groove; 58, flat pressing plate; 59, limit inner groove; 60, rotating roller; 61, short shaft; 62, second bearing seat; 63, constant speed motor; 64, elastic movable groove; 65, elastic rubber pressing block; 66, side pressing surface; 70, first synchronous sprocket; 71, second synchronous sprocket; 72, chain; 73, transition shaft; 74, first synchronous gear; 75, second synchronous gear; 80, inner bearing; 81, second riveting block; 82, adjusting gear; 83, driving gear; 84, servo motor; 90, spiral corrector; 91, sensitive bearing; 92, rotating rod; 93, spiral blade; 94, resistance airbag; 100, transfer seat. Detailed implementation manners

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. Embodiment 1

[0025] As Figures 1-10As shown in the figure, this embodiment provides a random full-automatic H-shaped carton sealer, which includes a machine base 1. The outside of the machine base 1 is shielded by a glass protective cover. Inside the machine base 1, a transportation channel 2 is horizontally opened. Inside the transportation channel 2, transportation rollers 3 are rotatably arranged at equal intervals. On both sides of the outside of the machine base 1, limiting track beams 4 are symmetrically arranged. Between the two groups of limiting track beams 4, a lifting platform 5 is movably arranged. At the upper end of the lifting platform 5, a traction mechanism is arranged, which is responsible for the up and down movement of the entire movement mechanism and is designed and installed according to actual situations. On the right side of the lifting platform 5, a driving box 7 is connected through a welding frame 6. There are two sets of driving components in the driving box 7. At the right end of the driving box 7, a swing pressing rod 8 is movably arranged, and the swing pressing rod 8 is driven by the driving components. At the lower end of the driving box 7, a rotating pressing rod 9 is movably arranged, and the rotating pressing rod 9 is driven by another set of driving components. The swing pressing rod 8 and the rotating pressing rod 9 respectively act on two inner flaps of the carton. On the left side of the lifting platform 5, a carton sealing movement mechanism 10 is connected. The carton sealing movement mechanism 10 includes a machine shell, a front pressing wheel, a rear pressing wheel and a blade.

[0026] Among them, inside the transportation channel 2 and symmetrically arranged above the transportation rollers 3, there are two sets of carton clamping belt conveyors 11. On the carton clamping belt conveyors 11, carton clamping belts 12 are movably arranged. The inside of the carton clamping belt conveyors 11 includes a pulley group and a guide pulley group. At the lower end of the carton clamping belt conveyors 11, several groups of connecting seats 13 are welded at equal intervals. Inside each group of connecting seats 13, a sliding sleeve 14 sleeved on the outside of the transportation roller 3 is fixed, and the two slide relative to each other as Figures 1-4 shown.

[0027] In this embodiment, upper rack bars 15 are arranged at the lower ends of some of the connecting seats 13, as Figure 4 shown.

[0028] Furthermore, at the bottom of the transportation channel 2 and below the transportation rollers 3, a double-acting cylinder 20 is horizontally arranged. At the front and rear ends of the double-acting cylinder 20, cylinder rods 21 are movably arranged. At the end of each group of cylinder rods 21, a lower rack bar 22 is connected, as Figure 3 shown.

[0029] In this embodiment, the lower rack bar 22 and the corresponding upper rack bar 15 are meshed by a precision gear 23. The precision gear 23 is sleeved on a gear shaft 24. Both ends of the gear shaft 24 are fixed to the inner wall of the transportation channel 2 through first bearing seats 25, as Figure 3 and Figure 5 shown.

[0030] Furthermore, at one end of the gear shaft 24, a circular locking port 26 is opened. Horizontally outside the circular locking port 26, a shock-absorbing locking structure 30 is arranged, as Figure 3 and Figure 5 shown.

[0031] Specifically, the shock-absorbing and locking structure 30 includes a hydraulic device 31, a telescopic rod 32, a circular arc head 33, and locking flap pieces 34, as Figure 5 shown.

[0032] In this embodiment, the hydraulic device 31 is horizontally fixed. A telescopic rod 32 is movably arranged outward inside the hydraulic device 31. The end of the telescopic rod 32 is welded to the concave surface of the circular arc head 33. A number of groups of locking flap pieces 34 acting on the circular locking opening 26 are evenly distributed on the circular arc head 33. The locking flap pieces 34 are of a curved structure and have elasticity and anti-slip properties.

[0033] Furthermore, outer shells 40 are symmetrically riveted to both outer sides of the carton sealing core 10. A positioning main rod 41 is horizontally arranged inside the outer shell 40. The positioning main rod 41 is fixed inside the outer shell 40 through two groups of first riveting blocks 42, as Figure 1 and Figure 6 shown.

[0034] Among them, a diagonal rod 43 is welded to the right end of the positioning main rod 41 and extends outward. The diagonal rod 43 extends upward and is connected to the back of the side pressing plate 44 through two groups of positioning bearings 45. The side pressing plate 44 moves around the diagonal rod 43. The upper ends of the two groups of side pressing plates 44 are respectively connected to the bottom of the welding frame 6 through tension springs 46. The tension springs 46 are stretched during the flipping process of the side pressing plates 44 to generate a reset acting force. The two groups of side pressing plates 44 respectively act on the two outer flaps of the carton, as Figure 6 shown.

[0035] Furthermore, a transfer seat 100 is connected to the left end of the machine base 1. A glue pressing box 50 is inclinedly arranged on the upper end of the transfer seat 100. An inner chamber 51 is penetrated and opened inside the glue pressing box 50. A curved conveyor 52 is installed at the bottom of the inner chamber 51. The curved conveyor 52 includes an inwardly concave conveyor belt (similar to a coal conveyor belt). Side baffles 53 are symmetrically arranged at both ends of the curved conveyor 52, as Figure 1 and Figure 7 shown.

[0036] In this embodiment, a lifting cylinder 54 is arranged on the top of the glue pressing box 50. A lifting rod 55 is movably arranged downward inside the lifting cylinder 54. The lower end of the lifting rod 55 is welded to a pressing seat 56. A limiting inner groove 59 for receiving the pressing seat 56 is opened at the top of the inner chamber 51, which plays a role in receiving and limiting guidance, as Figure 7 and Figure 8 shown.

[0037] Among them, two groups of roller grooves 57 are symmetrically opened downward inside the pressing seat 56. Flat pressing plates 58 are arranged on one side or both sides of the two groups of roller grooves 57, as Figure 8 shown.

[0038] Among them, a rotating roller 60 is movably arranged in each group of roller grooves 57. A part of the rotating roller 60 extends out of the roller groove 57. Short shafts 61 are symmetrically welded to both ends of the rotating roller 60. The short shafts 61 are fixed to the groove walls of the roller grooves 57 through second bearing seats 62. One group of short shafts 61 extends outward and is connected to a constant-speed motor 63 through a coupling, as Figures 8-10 shown.

[0039] Furthermore, elastic movable grooves 64 are evenly formed on the roller surface of the rotating roller 60. Elastic pressure rubber blocks 65 (with compression springs on the elastic pressure rubber blocks 65) are installed in each group of elastic movable grooves 64. The elastic pressure rubber blocks 65 extend out of the elastic movable grooves 64 and act on the edge of the tape. Side pressure surfaces 66 are arranged at one end or both ends of the elastic pressure rubber blocks 65, as Figure 9 and Figure 10 shown.

[0040] Furthermore, a first synchronous sprocket 70 is sleeved on the short shaft 61 of one group of rotating rollers 60. The first synchronous sprocket 70 and a second synchronous sprocket 71 are connected by a chain 72. The second synchronous sprocket 71 is sleeved on a transition shaft 73. The transition shaft 73 is fixed to the inner wall of the pressing seat 56 through a third bearing seat. A first synchronous gear 74 is also sleeved on the transition shaft 73. A second synchronous gear 75 is meshed with the lower end of the first synchronous gear 74. The second synchronous gear 75 is sleeved on the short shaft 61 of the other group of rotating rollers 60, as Figure 9 and Figure 10 shown.

[0041] When this embodiment is in use, first transfer the carton with the tape to be sealed to the transport roller 3 at the right position in the transport channel 2. Start the double-acting cylinder 20. The two cylinder rods 21 extend outward simultaneously, causing the lower rack bar 22 to move linearly outward. Through the meshing transmission of the precision gear 23, the two upper rack bars 15 are caused to move linearly towards each other respectively, thereby driving the two clamping belt conveyors 11 to approach each other in the transport channel 2 (the sliding sleeve 14 slides smoothly along the transport roller 3, applying an axial force to the transport roller 3 to prevent the transport roller 3 from rotating during the adjustment process). The clamping belt 12 contacts the side of the carton, clamps the carton in the middle, and aligns the sealing opening of the carton with the sealing machine core 10.

[0042] Then start the hydraulic device 31 on the shock-absorbing locking structure 30. The telescopic rod 32 extends horizontally, driving the arc head 33 to insert into the corresponding circular locking opening 26. At the same time, several groups of locking flap pieces 34 are forced into the circular locking opening 26. The elastic locking flap pieces 34 are clamped in the circular locking opening 26 to lock the precision gear 23, the lower rack bar 22, and the upper rack bar 15 in a related manner.

[0043] At this time, the traction mechanism is used to drive the lifting table 5 and its attached structures to descend. With the transmission structure of the drive box 7, the rotating pressure rod 9 contacts the inner swing cover at the left position during the descent, aligns and presses it. At the same time, with the transmission structure of the drive box 7, the swinging pressure rod 8 swings downward, contacts the inner swing cover at the right position, aligns and presses it.

[0044] At this time, the two groups of box-clamping belts 12 clamp the cardboard box and move it linearly to the left. Before it quickly enters the area of the box-sealing core 10, the two groups of outer swing covers respectively contact the side pressing plates 44, generate contact forces with the side pressing plates 44, causing the side pressing plates 44 to flip around the inclined rod 43 (the tension spring 46 is stretched), pressing the outer swing covers onto the inner swing covers, and then allowing the outer swing covers to enter the lower end of the box-sealing core 10. The front and rear pressing wheel combinations are used to seal the tape to the sealing position.

[0045] When the cardboard box with the sealing completed is exported from the left position of the transportation channel 2 through the transportation roller 3, it just enters the inner chamber 51 and falls to the center position of the concave-shaped transportation belt (due to the concavity of the belt, the cardboard box automatically centers to ensure a balanced state), and moves to the left along with the concave-shaped transportation belt. At this time, the lifting cylinder 54 is started, and the lifting rod 55 drives the pressing seat 56 to descend, making it quickly approach the tape position. At this time, the uniform-speed motor 63 is started, driving one group of rotating rollers 60 to rotate. Through the transmission of the first synchronous sprocket 70 and the second synchronous sprocket 71, the coaxial first synchronous gear 74 is caused to rotate, and through the meshing of the second synchronous gear 75, the other group of rotating rollers 60 is caused to rotate in the opposite direction. The two groups of rotating rollers 60 move synchronously in the opposite direction. During the circular motion, the elastic pressure rubber blocks 65 respectively slide from the middle position of the sealing tape to the edge position, pressing the tape on the outer swing cover, removing air bubbles and wrinkles. Repeating this many times, as the cardboard box moves, different positions can be pressed to ensure full coverage.

[0046] The lifting rod 55 is used to drive the pressing seat 56 to continue descending, so that the flat pressing plate 58 presses on the edge of the cardboard box, so that the side pressing surface 66 of the elastic pressure rubber block 65 fits on the end face of the cardboard box (applicable to LNK cartons and airplane boxes). When the elastic pressure rubber block 65 moves along with the rotating roller 60, the side pressing surface 66 can be used to press the sealing tape on the end face. Embodiment 2

[0047] On the basis of Embodiment 1, when using the side pressing plate 44 to press the outer swing cover, due to the different sizes of the outer swing covers of cardboard boxes of different sizes, the fitting and pressing effect between the side pressing plate 44 and the outer swing cover is poor. Coupled with different contact forces, the working strength stability of the tension spring 46 cannot be ensured, and it is easy to cause a card machine situation, and the edge of the outer swing cover is prone to curling (corrugated cardboard deformation), thus affecting the subsequent sealing. To solve the above technical problems, we have the following design, as Figures 11-13 shown.

[0048] Specifically, the positioning main rod 41 is movably arranged in the outer housing 40 through two groups of inner bearings 80. The positioning main rod 41 rotates around the inner bearing 80. The inclined rod 43 is fixed through the back surfaces of two groups of second riveting blocks 81 and the side pressing plate 44, as Figure 11 and Figure 12 shown.

[0049] Among them, an adjusting gear 82 is sleeved in the middle of the positioning main rod 41. A driving gear 83 is meshed and arranged on one side of the adjusting gear 82. The driving gear 83 is sleeved on the output shaft of the servo motor 84, as Figure 11 and Figure 12 shown.

[0050] Furthermore, a spiral corrector 90 is inclined and installed at the top of each group of side pressing plates 44, as Figure 12 shown.

[0051] Specifically, the spiral corrector 90 includes a sensitive bearing 91, a rotating rod 92, a spiral blade 93 and a resistance airbag 94, as Figure 13 shown.

[0052] In this embodiment, the rotating rod 92 is connected to the inside of the side pressing plate 44 through the sensitive bearing 91. A spiral blade 93 is arranged on the part of the rotating rod 92 extending out of the side pressing plate 44. The space between adjacent spiral blades 93 is filled with a resistance airbag 94. The outer surface of the resistance airbag 94 is rough and has a certain deformation and reset performance. Both the spiral blade 93 and the resistance airbag 94 are in contact with the edge part of the outer swing cover.

[0053] When this embodiment is in use, the servo motor 84 is started to drive the driving gear 83 to rotate, and the adjusting gear 82 is rotated through meshing. The positioning main rod 41 provides an adjusting force, causing the inclined rod 43 to drive the side pressing plate 44 to perform a curvilinear motion, increasing the movement range of the side pressing plate 44, better fitting the outer swing cover, and at the same time adjusting the movement degree of the side pressing plate 44 according to the actual situation to ensure that the tension spring 46 is normally compressed.

[0054] When moving leftward before the carton is sealed, relative movement occurs between the side pressing plate 44 and the outer swing cover. The edge of the outer swing cover and the resistance airbag 94 of the rotating rod 92 intermittently generate friction during the relative movement process, causing the rotating rod 92 to rotate around the sensitive bearing 91, so that the spiral blade 93 contacts the curling position of the outer swing cover (the spiral direction of the spiral blade 93 conforms to the curling direction), applying a spiral force to it to flatten it, facilitating subsequent sealing and gluing.

[0055] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variation thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0056] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A random full-automatic H-shaped carton sealer, comprising a machine base (1), characterized in that: On the outer sides of both sides of the machine base (1), limit track beams (4) are symmetrically arranged. A lifting platform (5) is movably arranged between the two groups of limit track beams (4). The left side of the lifting platform (5) is connected to a case sealing machine core (10). On the two outer sides of the case sealing machine core (10), outer shells (40) are symmetrically riveted. Inside the outer shell (40), a positioning main rod (41) is horizontally arranged. The right end of the positioning main rod (41) extends outwards and is welded with an inclined rod (43). The inclined rod (43) extends upwards and is connected to the back surface of a side pressing plate (44). The upper ends of the two groups of side pressing plates (44) are respectively connected to the bottom of a welding frame (6) through tension springs (46). The two groups of side pressing plates (44) respectively act on the two outer flaps of the carton. On the top of a glue pressing box (50), a lifting air cylinder (54) is arranged. Inside the lifting air cylinder (54), a lifting rod (55) is movably arranged downwards. The lower end of the lifting rod (55) is welded with a pressing seat (56). On the top of an inner chamber (51), a limit inner groove (59) for receiving the pressing seat (56) is opened. Inside the pressing seat (56), two groups of roller grooves (57) are symmetrically opened downwards. One side or both sides of the two groups of roller grooves (57) are provided with flat pressing plates (58). Inside each group of roller grooves (57), a rotating roller (60) is movably arranged. On the roller surface of the rotating roller (60), elastic activity grooves (64) are evenly opened. Inside each group of elastic activity grooves (64), an elastic glue pressing block (65) is installed. The elastic glue pressing block (65) extends out of the elastic activity groove (64) and acts on the edge of the tape. One end or both ends of the elastic glue pressing block (65) are provided with side pressing surfaces (66).

2. The random full-automatic H-shaped carton sealer according to claim 1, wherein: Inside the machine base (1), a transportation channel (2) is opened. Inside the transportation channel (2), transportation rollers (3) are rotatably arranged at equal intervals. On the upper end of the lifting platform (5), a traction mechanism is arranged. The right side of the lifting platform (5) is connected to a driving box (7) through a welding frame (6). At the right end of the driving box (7), a swinging pressing rod (8) is movably arranged. At the lower end of the driving box (7), a rotating pressing rod (9) is movably arranged. The swinging pressing rod (8) and the rotating pressing rod (9) respectively act on the two inner flaps of the carton.

3. The random full-automatic H-shaped carton sealer according to claim 2, characterized in that: Inside the transportation channel (2) and above the transportation rollers (3), two groups of carton clamping belt conveyors (11) are symmetrically arranged. On the carton clamping belt conveyors (11), carton clamping belts (12) are movably arranged. At the lower end of the carton clamping belt conveyors (11), a number of connecting seats (13) are welded at equal intervals. Inside each group of connecting seats (13), a sliding sleeve (14) sleeved on the outer side of the transportation roller (3) is fixed. At the lower end of some of the connecting seats (13), upper rack bars (15) are provided.

4. A random full-automatic H-shaped carton sealer according to claim 3, characterized in that: A bidirectional cylinder (20) is horizontally arranged at the bottom of the transportation channel (2) and below the transportation rollers (3). Cylinder rods (21) are movably arranged at the front and rear ends of the bidirectional cylinder (20). A lower rack bar (22) is connected to the end of each group of cylinder rods (21). The lower rack bar (22) and the corresponding upper rack bar (15) are meshed by a precision gear (23), and the precision gear (23) is sleeved on a gear shaft (24).

5. The random full-automatic H-shaped carton sealer according to claim 4, wherein: A circular locking port (26) is opened at one end of the gear shaft (24). A shock-absorbing locking structure (30) is arranged on the horizontal outer side of the circular locking port (26). The shock-absorbing locking structure (30) includes a hydraulic device (31), a telescopic rod (32), an arc head (33) and locking flap pieces (34). The hydraulic device (31) is horizontally fixed. A telescopic rod (32) is movably arranged outward inside the hydraulic device (31). The end of the telescopic rod (32) is welded to the concave surface of the arc head (33). A number of groups of locking flap pieces (34) acting on the circular locking port (26) are evenly distributed on the arc head (33).

6. A random full-automatic H-shaped carton sealer according to claim 1, characterized in that: The positioning main rod (41) is fixed inside the outer shell (40) through two groups of first riveting blocks (42). The inclined rod (43) extends upward and is connected to the back of the side pressing plate (44) through two groups of positioning bearings (45).

7. A random full-automatic H-shaped carton sealer according to claim 1, characterized in that: A transfer seat (100) is connected to the left end of the machine base (1). A rubber pressing box (50) is inclinedly arranged at the upper end of the transfer seat (100). An inner chamber (51) is penetrated and opened inside the rubber pressing box (50). A curved conveyor (52) is installed at the bottom of the inner chamber (51). The curved conveyor (52) includes an inwardly concave conveyor belt; A part of the rotating roller (60) extends out of the roller groove (57). Short shafts (61) are symmetrically welded to both ends of the rotating roller (60). The short shafts (61) are fixed to the groove wall of the roller groove (57) through second bearing seats (62). One of the short shafts (61) extends outward and is connected to a constant speed motor (63) through a coupling.

8. A random full-automatic H-shaped carton sealer according to claim 7, characterized in that: A first synchronous sprocket (70) is sleeved on the short shaft (61) of one of the rotating rollers (60). The first synchronous sprocket (70) and a second synchronous sprocket (71) are connected by a chain (72). The second synchronous sprocket (71) is sleeved on a transition shaft (73). A first synchronous gear (74) is also sleeved on the transition shaft (73). A second synchronous gear (75) is meshed with the lower end of the first synchronous gear (74). The second synchronous gear (75) is sleeved on the short shaft (61) of the other rotating roller (60).

9. A random full-automatic H-shaped carton sealer according to claim 1, characterized in that: The positioning main rod (41) is movably arranged inside the outer shell (40) through two groups of inner bearings (80). The inclined rod (43) is fixed to the back of the side pressing plate (44) through two groups of second riveting blocks (81). An adjusting gear (82) is sleeved on the middle part of the positioning main rod (41). A driving gear (83) is meshed with one side of the adjusting gear (82). The driving gear (83) is sleeved on the output shaft of a servo motor (84).

10. A random full-automatic H-shaped carton sealer according to claim 9, characterized in that: At the top of each of the side pressing plates (44), a spiral corrector (90) is inclinedly installed. The spiral corrector (90) includes a sensitive bearing (91), a rotating rod (92), a spiral blade (93), and a resistance airbag (94). The rotating rod (92) is connected to the inside of the side pressing plate (44) through the sensitive bearing (91). A spiral blade (93) is provided on the part of the rotating rod (92) that extends out of the side pressing plate (44). The space between adjacent spiral blades (93) is filled with a resistance airbag (94). Both the spiral blade (93) and the resistance airbag (94) are in contact with the edge part of the outer swing cover.

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