Automatic sealing and packaging machine for adhesive tape

Abstract

An automatic sealing and packaging machine of adhesive tape, comprising a fixed frame, the fixed frame is provided with a whole winding rotating device of adhesive tape, a split type adhesive tape cutting and pressing device, a brush sliding telescopic device, a front platform and a rear platform; by setting two levers in the perforation of the fixed frame, after the whole winding of the adhesive tape completes covering the packaging box, the first lever is reset to clamp the adhesive tape, and the second lever is reset to cut the adhesive tape, so as to avoid synchronous operation of cutting and clamping of the adhesive tape, and to avoid the phenomenon of slipping of the cut adhesive tape head, so that the overall action is more reliable, and the adhesive tape can be smoothly clamped, the cooperation of the plate and the first guide rod enables the sliding plate and the double sliding block sliding device to slide linearly left and right, the brushes on the double sliding block sliding device can linearly brush the adhesive tape on the bottom of the packaging box left and right, the inertia of the brushes during operation is smaller, the action is more stable and reliable, and the service life of the whole machine is improved.

Description

Technical Field

[0001] This invention relates to an automatic tape sealing and packaging machine, belonging to the field of packaging equipment technology. Background Technology

[0002] With the development of the times, online shopping has become increasingly popular. Before being shipped via logistics and express delivery, online purchases need to be packaged and sealed, which requires the use of tape. Traditionally, people manually wrap the tape around the box in a complete circle or a cross shape, which is cumbersome, laborious, and inefficient. Therefore, automatic tape sealing machines were invented. However, these machines typically only seal the top and bottom openings of the box automatically, failing to seal the entire box with tape. Furthermore, the tape may not adhere tightly, easily causing items to fall out. Therefore, the applicant previously applied for Chinese Utility Model Patent 202023173061.8, entitled "Rotating Circular Tape Sealing Packaging Machine". The device comprises a tape winding and rotating mechanism, an automatic tape cutting and releasing mechanism, a platform bridging structure, a linkage-type packaging box bottom brush straight sliding tape application mechanism, and a brush fixed-point telescopic limiting mechanism. The automatic tape cutting and releasing mechanism includes a fixed plate, which is fixed to the side wall of the inner ring of a ring bearing. A lever is mounted on one side of the fixed plate, with shafts on both sides. A first torsion spring is mounted on the shaft, with one end contacting the lower end of the lever and the other end contacting the fixed plate. A transverse rotating shaft passes through the shaft, allowing the lever to rotate with the shaft, which is fixedly connected to the fixed plate. A blade is mounted on one side wall of the lever, and a guide head is mounted on the other end of the lever, passing through the fixed plate. A fixed bearing is mounted on the other side of the fixed plate, with a blade on the outer ring of the fixed bearing. The device consists of a gear with a cam on its side wall. The cam engages with a guide head. A first and second half-tooth are positioned on a circular turntable or rotating plate. The rotating plate drives the first and second half-tooth to mesh with the gear. A lever and a blade are assembled together. When the circular turntable covers the packaging box with tape, the cam engages with the guide head, causing the lever and blade to close simultaneously. The blade cuts the tape, and the lever presses the cut tape end under the connecting bridge. The disadvantage is that the tape and the pressed-off tape end move synchronously. This can easily cause the tape roll and tape end to quickly pass through the lever due to the inertia of the circular turntable after being cut. The lever may not be able to press the tape end in time, causing the tape end to slip off, thus affecting the next tape sealing and packaging operation.

[0003] In addition, the applicant has also applied for Chinese utility model patent 202320766330.6, entitled "Improved Tape Sealing Packaging Machine". This structure combines a tape winding and rotating device, an automatic tape cutting and releasing device, a platform bridging structure, a linkage-type bottom brush flat sliding tape bonding device, and a brush fixed-point telescopic limiting device. During the tape winding and sealing process, it flattens and bonds the tape at the bottom of the packaging box, making the tape adhere more tightly to the box. However, in this patent, one end of the brush rod in the linkage-type bottom brush flat sliding tape bonding device is rotatably connected to the rear connecting seat via a pivot pin. The brush flattens the tape at the bottom of the packaging box by rotating and swinging left and right. Its disadvantages are: 1. The brush head stroke is short, suitable for small tape sealing packaging machines. If applied to large tape sealing packaging machines, the brush rod length needs to be increased. The following issues arise: First, the device is bulky and heavy. The brush rod experiences significant inertia during rapid, reciprocating rotation, leading to poor stability of the pivot pin position, susceptibility to wobbling and instability, and ultimately, damage to this position and a short lifespan. Second, manual operation of the handle is required to rotate the tape around the packaging box, making operation cumbersome. Third, the annular turntable or rotating plate in the automatic tape cutting and releasing device engages with a gear on the cam sidewall via the first and second half-teeth, causing the cam to rotate. The cam then engages with the guide head of the first lever. This means the automatic tape cutting and releasing device is linked to the annular turntable or rotating plate via the engagement of the gear with the first and second half-teeth. However, since the first and second half-teeth are not in a constant meshing state with the gear, only engaging once after half a rotation, the first and second half-teeth are prone to colliding with the gear during rapid rotation of the annular turntable, causing damage to the gear. This linkage structure exhibits poor stability. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of existing technologies and provide an automatic tape sealing and packaging machine that automatically drives the tape to seal boxes, the tape can be smoothly clamped, the brush has a long stroke, and the left and right movement and forward and backward extension of the brush are more stable and reliable, thereby improving the service life of the whole machine, and is easy to operate and has good stability.

[0005] The technical solution of the present invention for an automatic tape sealing and packaging machine is as follows: it includes a fixed frame, on which a tape winding and rotating device, a split tape cutting and pressing device, a brush sliding and telescopic device, a front platform and a rear platform are provided; The tape winding and rotating device includes an inner ring of an annular bearing, which is fixed to a fixed frame by fasteners. A turntable is set on the outer ring of the inner ring of the annular bearing. The turntable is driven to rotate by a power source. A tape fixing ring is set on the turntable, and a roll of tape is set on the tape fixing ring. The split-type tape cutting and clamping device includes a connecting seat, which is located in front of a fixed frame inside the turntable. A through hole is provided in the fixed frame below the connecting seat. A first lever and a second lever are arranged in the through hole. The tape is clamped between the first lever and the connecting seat. A blade is provided on one side of the second lever, which cooperates with the tape. A rod shaft is inserted into the first lever and the second lever. The rod shaft is fixedly connected to the fixed frame. The first lever and the second lever are rotatably engaged with the rod shaft. The first lever and the second lever are respectively driven by a rotation control device to rotate downward to open or rotate upward to reset. The brush sliding telescopic device includes two brackets on the back of the fixed frame, a first guide rod and a fixed plate between the two brackets, a sliding plate on the first guide rod, and the sliding plate sliding left and right along the first guide rod driven by a power source. Front and rear guide rods are provided in the sliding plate, and a double-slider sliding device is provided on the front and rear guide rods. The double-slider sliding device can be one or two sets, each including a front slider and a rear slider, which slide back and forth along the front and rear guide rods respectively. A first tension spring is provided between the front and rear sliders, and a second tension spring is provided between the rear slider and the front part of the sliding plate. A brush rod is provided on one side of the front slider, with brush bristles on the end of the brush rod away from the front slider. A front bearing is provided at the lower part of the front slider, and a rear bearing is provided at the lower part of the rear slider. A front guide device for guiding the front slider and a rear guide device for guiding the rear slider are provided on the fixed plate. The front guide device cooperates with the front bearing under the front slider, and the rear guide device cooperates with the rear bearing under the rear slider.

[0006] Furthermore, the rotation control device includes a cam, a first guide head is provided at the other end of the first lever, a second guide head is provided at the other end of the second lever, the first guide head and the second guide head respectively cooperate with the cam, and a first torsion spring that provides an upward elastic restoring force to the first lever and a second torsion spring that provides an upward elastic restoring force to the second lever are provided on the rod shaft.

[0007] Furthermore, a second guide rod and a third guide rod are provided between the left and right brackets. A spring-loaded, energy-storing, rotating linkage device is provided on the back of the fixed frame. The spring-loaded, energy-storing, rotating linkage device includes a fixed shaft, with a connecting sleeve fitted on the outer wall of the fixed shaft. The connecting sleeve is rotatably engaged with the fixed shaft. A bearing and a connecting pin are provided on the outer wall of the connecting sleeve. A cam, a front connecting plate, and a rear connecting plate are provided on the bearing. The cam, the front connecting plate, and the rear connecting plate are rotatably engaged with the connecting sleeve via the bearing. One side of the cam is fixed to the front connecting plate. The front connecting plate and the rear connecting plate are fixedly connected by a connecting post. A spring is installed between the front and rear connecting plates. The innermost end of the spring is connected to the connecting pin, and the outermost end is connected to the connecting post. A rotating plate is installed on one side of the rear connecting plate. One end of the rotating plate is fixed to the rear connecting plate, and a connecting shaft is installed on the other end of the rotating plate. Two sets of left and right limiting sliding devices are installed on the second guide rod. The limiting sliding devices are matched with one end of the connecting shaft. A sliding frame is installed on the third guide rod. A guide groove is opened in the sliding frame. The guide groove is matched with the other end of the connecting shaft. The upper part of the sliding frame is matched with the sliding plate.

[0008] Furthermore, the limiting sliding device includes two limiting sliders on the second guide rod, which slide in cooperation with the second guide rod. A limiting baffle is provided on the end of the limiting slider near the connecting shaft, and the limiting baffle cooperates with the connecting shaft. A return spring is sleeved on the outer wall of the second guide rod between the limiting slider and the bracket. The end of the limiting slider away from the connecting shaft passes through the bracket. A swing rod is provided on the left and right sides of the back of the fixed frame. The swing rod is rotatably connected to the fixed frame via a rotating shaft. The lower end of the swing rod is connected to the limiting slider. A swing rod pin is provided on the upper end of the swing rod. A guide block is provided on the turntable. One end of the swing rod pin passes through the fixed frame and cooperates with the guide block.

[0009] Furthermore, a motor is installed on one side of the two support blocks, a first drive gear is installed on the first output shaft of the motor, and a driven gear is installed on the outer ring of the turntable, the driven gear meshing with the first drive gear.

[0010] Furthermore, the motor drives the connecting sleeve to rotate via a linkage structure. The linkage structure includes a gearbox on one side of the motor, a second drive gear on the second output shaft of the gearbox, a bearing on the outer wall of the first output shaft, a first bushing on the outer wall of the bearing, the first bushing being rotatably engaged with the first output shaft via the bearing, a first driven gear and a second driven gear on the first bushing, the first driven gear meshing with the second drive gear, a transmission shaft on the back of the fixed frame, a bearing on the transmission shaft, a second bushing on the bearing, the second bushing being rotatably engaged with the transmission shaft via the bearing, a third driven gear and a fourth driven gear on the second bushing, the third driven gear being connected to the second driven gear via a first chain, and a fifth driven gear on the connecting sleeve, the fifth driven gear being connected to the fourth driven gear via a second chain.

[0011] Furthermore, the front guide device includes a horizontally arranged front guide plate, which is fixed to a fixed plate. A left notch and a right notch are provided in the front guide plate. A left front lifting baffle is provided in the left notch, and a right front lifting baffle is provided in the right notch. The left and right front lifting baffles are raised or lowered by a lifting structure. The front bearing at the lower part of the front slider cooperates with the front guide plate, the left or right notch, the left or right lifting baffle, or the right front lifting baffle. The rear guide device includes a V-shaped middle guide plate and a horizontally arranged rear guide plate. The guide plate and the rear guide plate are respectively fixed to the fixed plate. The middle guide plate is provided with a middle and rear plate connecting structure in the middle. The rear guide plate is provided with a middle notch in the middle. The middle of the middle guide plate is connected to the rear guide plate through the middle and rear plate connecting structure and the middle notch. The two ends of the rear guide plate are provided with a left rear lifting baffle and a right rear lifting baffle. The left rear lifting baffle and the right rear lifting baffle are driven to rise or fall by the lifting structure. The rear bearing at the lower part of the rear slider cooperates with the middle guide plate or the middle and rear plate connecting structure or the rear guide plate or the left rear lifting baffle or the right rear lifting baffle.

[0012] Furthermore, the lifting structure includes a left front connecting plate located below the fixed plate on the left front lifting baffle, with a central pivot pin rotatably connected to the front guide plate; a right front connecting plate located below the fixed plate on the right front lifting baffle, with a central pivot pin rotatably connected to the front guide plate; a connecting lever located below the fixed plate between the left and right rear lifting baffles, with a central pivot pin rotatably connected to the lower part of the fixed plate; a left connecting rod located between the end of the left front connecting plate away from the left front lifting baffle and the lower part of the left rear lifting baffle; and a right connecting rod located between the end of the right front connecting plate away from the right front lifting baffle and the lower part of the right rear lifting baffle. The lever has a front lever on the front side of the fixed frame. The middle part of the front lever is rotatably connected to the fixed frame via a pin. One end of the front lever is connected to the left connecting rod, and the other end of the front lever is connected to the right connecting rod. A left paddle is set at one end of the front lever and is fixed to the front lever by fasteners. A lever is set at the other end of the front lever. A right paddle is set on the fixed frame in front of the lever and is rotatably connected to the fixed frame via a pin. The right paddle has a hole in it, and the lever mates with the hole. The distance S1 between the left paddle and the front lever is greater than the distance S2 between the right paddle and the front lever. A long paddle pin and a short paddle pin are set on the turntable. The long paddle pin mates with the left paddle pin, and the short paddle pin mates with the right paddle pin.

[0013] Furthermore, the middle and rear plate connection structure includes a mounting groove in the middle of the middle guide plate, a pull pin in the mounting groove, a transition plate above the opening of the mounting groove, a swing plate between the transition plate and the mounting groove, a third tension spring connecting one end of the swing plate to the pull pin, and the other end of the swing plate connecting to the rear guide plate through a middle notch.

[0014] Furthermore, a fixing plate is provided on the skateboard, and an inclined guide plate is provided on the fixing plate. A roller is provided at the end of the brush rod away from the bristles, and the roller cooperates with the inclined guide plate.

[0015] The beneficial effects of this invention, an automatic tape sealing and packaging machine, are as follows: 1. By setting two levers in the perforations of the fixed frame, after the tape has completely covered the entire packaging box, the first lever resets first to clamp the tape, and the second lever resets later to cut the tape. This avoids simultaneous cutting and clamping of the tape, which could lead to slippage of the cut tape end, making the overall action more reliable and ensuring that the tape can be smoothly clamped. 2. The cooperation between the sliding plate and the first guide rod allows the sliding plate and the double slider sliding device to slide linearly left and right. The brush on the double slider sliding device can brush the tape at the bottom of the packaging box linearly from left to right. The brush has less inertia during operation, making the action more stable and reliable, and improving the service life of the entire machine. 3. Through the guidance and cooperation of the front guide device with the front bearing under the front slider, and the guidance and cooperation of the rear guide device with the rear bearing under the rear slider, combined with the tension of the first and second tension springs and the cooperation of the lifting structure, the brush can extend and retract back and forth. The brush can extend forward to clean the packaging box. The bottom tape is brushed flat, and the brush retracts to avoid interfering with the tape's coverage of the packaging box. The operation is smooth, stable, and reliable. The ingenious design of the linkage between various moving parts minimizes the use of cylinders, motors, and other power structures, reducing manufacturing costs and minimizing the entanglement of pipes and wiring. Fourth, the turntable rotates automatically driven by the first output shaft of the motor, eliminating the need for manual operation of the handle and making operation more convenient. Fifth, after the motor is geared by the gearbox, the second output shaft drives the spring to tighten via the linkage structure and the limiting sliding device. Then, through the guide block on the turntable and the rocker pin, the linkage shaft disengages from the limiting sliding device. Under the elastic restoring force of the spring, the front connecting plate, rear connecting plate, cam, rotating plate, and linkage shaft rotate. The cam controls the opening and closing of the tape cutting and pressing device, and the linkage shaft controls the movement of the brush. Only one motor and linkage structure are needed to enable all structures to move in unison. The ingenious linkage design makes the operation more stable and reliable. Attached Figure Description

[0016] Figure 1 This is a front perspective view of an automatic tape sealing and packaging machine according to the present invention; Figure 2 It is a three-dimensional schematic diagram of a fixed frame equipped with a tape wrapping and rotating device, a split tape cutting and pressing device, and a brush sliding and telescopic device. Figure 3 This is a frontal perspective view of the fixed frame and the split-type tape cutting and pressing device in operation. Figure 4 This is a three-dimensional diagram of the back of the fixed frame and the split tape cutting and pressing device in conjunction. Figure 5 It is a three-dimensional schematic diagram of the linkage, first lever, first guide head, first torsion spring, second lever, blade, second guide head, and second torsion spring in their coordinated state; Figure 6It is a three-dimensional schematic diagram of the fixed frame, bracket, and brush sliding telescopic device; Figure 7 This is a three-dimensional schematic diagram of the brush retracted state of two sets of double slider sliding devices; Figure 8 This is a three-dimensional schematic diagram of the brush extension state of two sets of double slider sliding devices; Figure 9 This is a side view of the brush extension state of the double slider sliding device; Figure 10 It is a three-dimensional schematic diagram of the fixed frame, bracket, fixed plate, front guide device, rear guide device, middle and rear plate connection structure, and front lever engagement state; Figure 11 yes Figure 10 A magnified view of part A; Figure 12 This is a schematic diagram of the running paths of the front and rear bearings; Figure 13 It is a three-dimensional schematic diagram of the working relationship between the fixed frame, the support, the front lever, and the lifting structure; Figure 14 It is a three-dimensional schematic diagram of the fixed frame back support, the first guide rod, the second guide rod, the third guide rod, the motor, and the spring-loaded energy storage and winding linkage device; Figure 15 It is a frontal three-dimensional schematic diagram of the fixed shaft, connecting sleeve, cam, front connecting plate, rear connecting plate, rotating plate and connecting shaft in their working state; Figure 16 It is a three-dimensional back view of the fixed shaft, connecting sleeve, cam, front connecting plate, rear connecting plate, rotating plate and connecting shaft in their working state; Figure 17 It is a three-dimensional schematic diagram of the fixed shaft, connecting sleeve, cam, front connecting plate, rear connecting plate, spring, rotating plate and connecting shaft in disassembled state; Figure 18 It is a three-dimensional schematic diagram of the engagement state of the fixed shaft, connecting sleeve, rear connecting plate and spring; Figure 19 It is a three-dimensional schematic diagram of the turntable and its linkage mechanism in operation; Figure 20 It is a three-dimensional schematic diagram of the engagement state of the connecting shaft and the limiting sliding device; Figure 21 It is a three-dimensional schematic diagram of the rocker arm pin passing through the fixed frame and engaging with the guide block; Figure 22 yes Figure 21 A magnified view of part B; Figure 23 It is a three-dimensional schematic diagram showing the coordinated state of the two left and right supports, the first guide rod, the second guide rod, the third guide rod, the sliding frame, the slide plate, and the brush. Detailed Implementation

[0017] The terms “first,” “second,” “third,” “fourth,” and “fifth” used in this application are for descriptive purposes only and should not be construed as indicating relative importance or implying the number of technical features indicated. The terms “left side” and “right side” are based on a front view of the automatic tape sealing packaging machine; in a rear view of the automatic tape sealing packaging machine, the positions of “left side” and “right side” are reversed.

[0018] This invention relates to an automatic tape sealing and packaging machine, such as... Figure 1 — Figure 23 As shown, it includes a fixed frame 1, on which a tape wrapping and rotating device, a split tape cutting and pressing device, a brush sliding and telescopic device, a front platform 61 and a rear platform 62 are provided. The tape winding and rotating device includes an inner ring 17 of an annular bearing, which is fixed to a fixed frame 1 by fasteners. A turntable 11 is set on the outer ring of the inner ring 17 of the annular bearing. The turntable 11 is driven to rotate by a power source. A tape fixing ring 12 is set on the turntable 11, and a tape roll is set on the tape fixing ring. The split-type tape cutting and clamping device includes a connecting seat 31, which is located in front of the fixing frame 1 inside the turntable 11. A through hole 32 is provided in the fixing frame 1 below the connecting seat 31. A first lever 33 and a second lever 34 are provided in the through hole 32. The tape is held between the first lever 33 and the connecting seat 31. A blade 341 is provided on one side of the second lever 34 and cooperates with the tape. A rod shaft 35 is inserted into the first lever 33 and the second lever 34. The rod shaft 35 is fixedly connected to the fixing frame 1. The first lever 33 and the second lever 34 are rotatably engaged with the rod shaft 35. The first lever 33 and the second lever 34 are respectively driven by a rotation control device to rotate downward to open or rotate upward to reset. The brush sliding telescopic device includes two supports 13 arranged on the back of the fixed frame 1, a first guide rod 41 and a fixed plate 42 arranged between the two supports 13, a sliding plate 43 arranged on the first guide rod 41, the sliding plate 43 being driven by a power source to slide left and right along the first guide rod 41, a front and rear guide rod 46 arranged in the sliding plate 43, and a double slider sliding device arranged on the front and rear guide rods 46. The double slider sliding device is one or two sets, the double slider sliding device including a front slider 461 and a rear slider 462, the front slider 461 and the rear slider 462 sliding back and forth along the front and rear guide rods 46 respectively, the front slider 461 and the rear slider 462 A first tension spring 463 is provided between the front slider 461 and the front part of the sliding plate 43. A second tension spring 464 is provided between the rear slider 462 and the front part of the sliding plate 43. A brush rod 465 is provided on one side of the front slider 461. Brush bristles 466 are provided on the end of the brush rod 465 away from the front slider 461. A front bearing 467 is provided at the lower part of the front slider 461, and a rear bearing 468 is provided at the lower part of the rear slider 462. A front guide device for guiding the front slider 461 and a rear guide device for guiding the rear slider 462 are provided on the fixing plate 42. The front guide device guides and cooperates with the front bearing 467 under the front slider 461, and the rear guide device guides and cooperates with the rear bearing 468 under the rear slider 462.

[0019] Furthermore, the rotation control device includes a cam 514, a first guide head 331 is provided at the other end of the first lever 33, and a second guide head 342 is provided at the other end of the second lever 34. The first guide head 331 and the second guide head 342 respectively cooperate with the cam 514. A first torsion spring 351 that provides an upward elastic restoring force to the first lever 33 and a second torsion spring 352 that provides an upward elastic restoring force to the second lever 34 are provided on the rod shaft 35.

[0020] Furthermore, a second guide rod 44 and a third guide rod 45 are provided between the left and right brackets 13. A spring-loaded power-storing and rotating linkage device is provided on the back of the fixed frame 1. The spring-loaded power-storing and rotating linkage device includes a fixed shaft 51, and a connecting sleeve 511 is sleeved on the outer wall of the fixed shaft 51. The connecting sleeve 511 is rotatably engaged with the fixed shaft 51. A bearing and a connecting pin 513 are provided on the outer wall of the connecting sleeve 511. A cam 514, a front connecting piece 515, and a rear connecting piece 516 are provided on the bearing. The cam 514, the front connecting piece 515, and the rear connecting piece 516 are rotatably engaged with the connecting sleeve 511 via the bearing. One side of the cam 514 is fixed to the front connecting piece 515. The front connecting piece 515 and the rear connecting piece 516 are fixedly connected by a connecting post 517. A spring 52 is provided between the front and rear connecting pieces 515 and 516. One end of the innermost coil of the spring 52 is connected to the connecting pin 513, and one end of the outermost coil of the spring 52 is connected to the connecting post 517. A rotating piece 53 is provided on one side of the rear connecting piece 516. One end of the rotating piece 53 is fixed to the rear connecting piece 516, and a connecting shaft 531 is provided on the other end of the rotating piece 53. Two sets of left and right limiting sliding devices are provided on the second guide rod 44. The limiting sliding devices are limited and cooperate with one end of the connecting shaft 531. A sliding frame 451 is provided on the third guide rod 45. A guide groove 452 is opened in the sliding frame 451. The guide groove 452 cooperates with the other end of the connecting shaft 531. The upper part of the sliding frame 451 cooperates with the slide plate 43.

[0021] Furthermore, the limiting sliding device includes two limiting sliders 441 on the second guide rod 44, which slide in cooperation with the second guide rod 44. A limiting baffle 442 is provided on the end of the limiting slider 441 near the connecting shaft 531, and the limiting baffle 442 cooperates with the connecting shaft 531. A return spring 446 is sleeved on the outer wall of the second guide rod 44 between the limiting slider 441 and the bracket 13. The end of the limiting slider 441 away from the connecting shaft 531 passes through the bracket 13. A swing rod 443 is provided on the left and right sides of the back of the fixed frame 1. The swing rod 443 is rotatably connected to the fixed frame 1 via a rotating shaft. The lower end of the swing rod 443 is connected to the limiting slider 441. A swing rod pin 444 is provided on the upper end of the swing rod 443. A guide block 445 is provided on the turntable 11. One end of the swing rod pin 444 passes through the fixed frame 1 and cooperates with the guide block 445.

[0022] Furthermore, a motor 14 is provided on one side of the two left and right brackets 13, and a first drive gear 142 is provided on the first output shaft 141 of the motor 14. A driven gear 111 is provided on the outer ring of the turntable 11, and the driven gear 111 meshes with the first drive gear 142.

[0023] Furthermore, the motor 14 drives the connecting sleeve 511 to rotate via a linkage structure. The linkage structure includes a gearbox 15 disposed on one side of the motor 14, a second drive gear 152 disposed on the second output shaft 151 of the gearbox 15, a bearing disposed on the outer wall of the first output shaft 141, and a first bushing 144 disposed on the outer wall of the bearing. The first bushing 144 rotatably engages with the first output shaft 141 via the bearing. A first driven gear 145 and a second driven gear 146 are disposed on the first bushing 144. The first driven gear 145 and the second drive gear 511... The fixed frame 1 has a transmission shaft 16 on its back, a bearing on the transmission shaft 16, and a second bushing 162 on the bearing. The second bushing 162 is rotatably engaged with the transmission shaft 16 via the bearing. A third driven gear 163 and a fourth driven gear 164 are mounted on the second bushing 162. The third driven gear 163 and the second driven gear 164 are connected via a first chain 165. A fifth driven gear 518 is mounted on the connecting sleeve 511. The fifth driven gear 518 and the fourth driven gear 164 are connected via a second chain 166.

[0024] Furthermore, the front guide device includes a horizontally arranged front guide plate 421, which is fixed to a fixed plate 42. A left notch 422 and a right notch 423 are provided in the front guide plate 421. A left front lifting baffle 424 is provided in the left notch 422, and a right front lifting baffle 425 is provided in the right notch 423. The left front lifting baffle 424 and the right front lifting baffle 425 are raised or lowered by a lifting structure. The front bearing 467 at the lower part of the front slider 461 cooperates with the front guide plate 421, the left notch 422, the right notch 423, the left front lifting baffle 424, or the right front lifting baffle 425. The rear guide device includes a V-shaped middle guide plate 426 and a horizontally arranged rear guide plate 427. The middle guide plate 426 and the rear guide plate 427 are respectively fixed to the fixed plate 42. The middle guide plate 426 is provided with a middle and rear plate connecting structure in the middle. The rear guide plate 427 is provided with a middle notch 428 in the middle. The middle guide plate 426 is connected to the rear guide plate 427 through the middle and rear plate connecting structure and the middle notch 428. The two ends of the rear guide plate 427 are provided with a left rear lifting baffle 429 and a right rear lifting baffle 430. The left rear lifting baffle 429 and the right rear lifting baffle 430 are driven to rise or fall by the lifting structure. The rear bearing 468 at the lower part of the rear slider 462 cooperates with the middle guide plate 426, the middle and rear plate connecting structure, the rear guide plate 427, the left rear lifting baffle 429, or the right rear lifting baffle 430.

[0025] Furthermore, the lifting structure includes a left front lifting baffle 424 located below the fixed plate 42, with a left front connecting plate 431 rotatably connected to the front guide plate 421 via a central pivot pin; a right front lifting baffle 425 located below the fixed plate 42, with a right front connecting plate 432 rotatably connected to the front guide plate 421 via a central pivot pin; and a structure between the left rear lifting baffle 429 and the right rear lifting baffle 430. A linkage lever 433 is located below the fixed plate 42. A pin at the center of the linkage lever 433 is rotatably connected to the lower part of the fixed plate 42. A left connecting rod 434 is provided between the end of the left front linkage plate 431 away from the left front lifting baffle 424 and the lower part of the left rear lifting baffle 429. A right connecting rod 435 is provided between the end of the right front linkage plate 432 away from the right front lifting baffle 425 and the lower part of the right rear lifting baffle 430. The fixed frame... A front lever 18 is provided on the front side. The middle part of the front lever 18 is rotatably connected to the fixing frame 1 via a pin. One end of the front lever 18 is connected to the left connecting rod 434, and the other end of the front lever 18 is connected to the right connecting rod 435. A left lever 181 is provided at one end of the front lever 18 and is fixed to the front lever 18 by fasteners. A lever 182 is provided at the other end of the front lever 18. A right lever 183 is provided on the fixing frame 1 in front of the lever 182. The paddle 183 is rotatably connected to the fixed frame 1 via a pin. The right paddle 83 has a paddle hole 184, and the lever 182 cooperates with the paddle hole 184. The distance S1 between the left paddle 181 and the front lever 18 is greater than the distance S2 between the right paddle 183 and the front lever 18. The turntable 11 is provided with a long paddle pin 185 and a short paddle pin 186. The long paddle pin 185 cooperates with the left paddle 181, and the short paddle pin 186 cooperates with the right paddle 183. The distance between the left lever 181 and the front lever 18 is designed to be large, so that the short lever 186 will not hit the left lever 181 when it passes through, thus preventing the front lever 18 from swinging prematurely and affecting the overall operation. Alternatively, the lifting structure can also use a solenoid valve or a cylinder. The solenoid valve or cylinder connects the front lifting baffle 424 and the rear lifting baffle 429, and controls the raising or lowering of the front lifting baffle 424 and the rear lifting baffle 429 through the solenoid valve or cylinder. The circuit control setting is more complicated and the cost is higher.

[0026] Furthermore, the aforementioned middle and rear plate connection structure includes a mounting groove 436 in the middle of the middle guide plate 426, a pull pin 437 in the mounting groove 436, a transition plate 438 above the opening of the mounting groove 436, a swing plate 439 between the transition plate 438 and the mounting groove 436, a third tension spring 440 connecting one end of the swing plate 439 to the pull pin 437, and the other end of the swing plate 439 connecting to the rear guide plate 427 via a middle notch 428. Alternatively, two middle lifting baffles can be installed in the middle notch 428, connected by a solenoid valve, and the raising or lowering of the middle lifting baffles can be controlled by the solenoid valve. However, since the raising and lowering of the middle lifting baffles requires higher precision in timing with the front bearing 467 and the rear bearing 468, the circuit control settings are more complicated and costly.

[0027] Furthermore, a fixing plate 47 is provided on the sliding plate 43, and an inclined guide plate 471 is provided on the fixing plate 47. A roller 472 is provided at the end of the brush rod 465 away from the bristles 466, and the roller 472 cooperates with the inclined guide plate 471. When the current slider 461 drives the brush rod 465 forward (the brush rod 465 is rotatably connected to the front slider 461 via a pin; in normal state, the bristles 466 at the head of the brush rod 465 are slightly tilted downwards), causing the bristles 466 to extend forward, the roller 472 on the brush rod 465 cooperates with the inclined guide plate 471. Under the guidance of the inclined guide plate 471, the end of the brush rod 465 located at the roller 472 rotates downwards, while the end of the brush rod 465 located at the bristles 466 rotates upwards, causing... After the bristles 466 extend, they can get closer to the tape at the bottom of the packaging box, smoothing the tape and making the tape adhere more reliably to the bottom of the packaging box. When the slider 461 drives the brush rod 465 to return to its original position, the roller 472 disengages from the inclined guide plate 471, and the front of the brush rod 465 rotates downward under the action of gravity, so that the brush rod 465 and the bristles 466 return to a horizontal state (a support plate can be set under the brush rod 465 to limit the brush rod 465 and prevent excessive downward rotation).

[0028] This invention discloses an automatic tape sealing and packaging machine. In use, the tape roll is first fitted onto the tape retaining ring 12, and the tape end is pulled out (the adhesive side of the tape should be facing up, and the smooth side down). Then, the first lever 33 is opened by hand, and the tape end is placed between the first lever 33 and the connecting seat 31. Under the restoring force of the first torsion spring 351, the first lever 33 is driven upward to clamp the tape end. Next, the packaging box is placed on the front platform 61 and the rear platform 62 (a gap is formed between the front and rear platforms to allow the tape to pass around). At this time, the motor 14 can be controlled by a button or remote control (the specific structure of the control structure is existing technology). The first output shaft 141 of the motor 14 drives the first drive gear 142 to rotate. The first driving gear 142 meshes with the driven gear 111, driving the turntable 11 to rotate. The turntable 11 rotates around the inner ring 17 of the annular bearing. The turntable 11 drives the tape retaining ring 12 and the tape roll to rotate, causing the tape to first adhere to the left side wall of the packaging box, and then continue to drive the tape roll to rotate to the top of the packaging box. At the same time as the turntable 11 rotates, the second output shaft 151 of the gearbox 15 drives the second driving gear 152 to rotate. The second driving gear 152 drives the first driven gear 145 to rotate. The first driven gear 145 drives the first bushing 144 (the first bushing 144 rotates independently of the first output shaft 141 via a bearing, without interfering with each other) and the second driven gear 146 to rotate. The second driven gear 146 drives the third driven gear via the first chain 165. Wheel 163 rotates, the third driven gear 163 drives the second bushing 162 and the fourth driven gear 164 to rotate, the fourth driven gear 164 drives the fifth driven gear 518 to rotate via the second chain 166, the fifth driven gear 518 drives the connecting sleeve 511 to rotate, the connecting sleeve 511 drives the connecting pin 513 to rotate, the connecting pin 513 drives the innermost end of the mainspring 52 to rotate, and the outermost end of the mainspring 52 is connected to the connecting post 517. Since the connecting post 517, the front connecting piece 515, the rear connecting piece 516, the cam 514, and the rotating piece 53 are all fixed together, the connecting shaft 531 of the rotating piece 53 is limited by the limiting baffle 442 on one of the limiting sliders 441 of the limiting sliding device (first limited by the left limiting slider 441). The limiting baffle 442 on the upper part of the mainspring 52 is in a limiting engagement with the connecting shaft 531, so the connecting column 517 remains stationary, that is, the outermost end of the mainspring 52 remains stationary, thereby causing the inner end of the mainspring 52 to gradually tighten. When the motor 14 drives the guide block 445 of the turntable 11 to rotate to the position of the left rocker pin 444, the guide surface on the guide block 445 engages with the rocker pin 444, causing the rocker pin 444 to rotate to the right. The rocker pin 444 causes the upper end of the rocker 443 to rotate to the right around the axis of rotation, causing the lower end of the rocker 443 to rotate to the left in the opposite direction around the axis of rotation. The rocker 443 causes the left limiting slider 441 to move to the left along the second guide rod 44 and squeeze the return spring 446. The limiting baffle 442 on the limiting slider 441 disengages from the connecting shaft 531.At this time, under the action of elastic restoring force, the spring 52 drives the connecting column 517, the front connecting piece 515, the rear connecting piece 516, the cam 514, the rotating piece 53, and the connecting shaft 531 to rotate around the connecting sleeve 511 via bearings. The cam 514 cooperates with the first guide head 331 and the second guide head 342 of the split-type tape cutting and clamping device, driving the first guide head 331 and the second guide head 342 to rotate upward along the cam 514. The first guide head 331 drives the first lever 33 to open downward via the rod shaft 35, and the second guide head 342 drives the blade 341 of the second lever 34 to open downward via the rod shaft 35. The first lever 33 and the connecting seat 31 disengage from the tape head clamping engagement. At the same time, the connecting shaft 531 cooperates with the guide groove 452 of the sliding frame 451. The linkage shaft 531 drives the sliding frame 451 to move to the right along the third guide rod 45. The sliding frame 451 drives the slide plate 43 of the brush sliding telescopic device to move to the right along the first guide rod 41. At the same time, the short pin 186 on the turntable 11 contacts one end of the right lever 183, causing the right lever 183 to rotate upward at one end of the lever 182. The lever 182 drives the right side of the front lever 18 to rotate upward. The right side of the front lever 18 drives the right connecting rod 435 to move upward. The right connecting rod 435 drives the right side of the right front connecting plate 432 to rotate upward. The right front lifting baffle 425 on the left side of the right front connecting plate 432 rotates downward, opening the right notch 423. At the same time, the right connecting rod 435 drives the right rear lifting baffle 430 of the connecting lever 433 to rotate upward, opening the right notch 423. The left rear lifting baffle 429 of the movable lever 433 rotates downward. The left rear lifting baffle 429, through the left connecting rod 434, drives the left side of the left front connecting plate 431 to rotate downward. The left front lifting baffle 424 on the right side of the left front connecting plate 431 rotates upward, sealing the left notch 422. As the left rear lifting baffle 429 rotates downward, the rear bearing 468 of the double slider sliding device is disengaged from the limit contact. Under the tension of the second tension spring 464, the rear slider 462 and the front slider 461 slide forward together along the front and rear guide rods 46. The front slider 461 drives the brush rod 465 and the bristles 466 to extend forward together. When the bristles 466 extend forward, they lift upward. At this time, the bristles 466 correspond to the tape on the left side of the bottom of the packaging box. At this time, the sliding frame 451 drives the bristles to move upward. The sliding plate 43 of the brush sliding telescopic device 4 moves to the right along the first guide rod 41. The sliding plate 43 drives the brush bristles 466 to move to the right, performing the first brushing and adhesion of the tape at the bottom of the packaging box. As the sliding plate 43 moves to the right, the rear bearing 468 of the double slider sliding device contacts the middle guide plate 426. Under its guidance, the rear bearing 468 drives the rear slider 462 to gradually move backward, while the front bearing 467 of the front slider 461 moves laterally along the front guide plate 421, thereby increasing the distance between the front slider 461 and the rear slider 462. This stretches the first tension spring 463 and the second tension spring 464. When the sliding plate 43 drives the front bearing 467 to the right notch 423, since the right notch 423 has been opened, under the tension of the first tension spring 463...The front bearing 467 of the front slider 461 moves rapidly backward through the right notch 423 until it engages with the rear slider 462. The front slider 461 drives the brush rod 465 and brush bristles 466 to retract backward. The slide plate 43 moves to the rightmost side of the first guide rod 41. The rear bearing 468 of the double slider sliding device contacts the right rear lifting baffle 430. At this time, the right rear lifting baffle 430 is in the rising state, blocking the rear bearing 468. At this time, driven by the turntable 11, the tape has covered the left bottom, left side, and top surface of the packaging box. After the brush bristles 466 retract, it can avoid interfering with the tape covering the right side of the packaging box. When the connecting shaft 531 rotates to cooperate with the right limit sliding device, the connecting shaft 531, connecting column 517, and front connecting piece 51... 5. The rear connecting piece 516, cam 514, and rotating piece 53 stop rotating again. When the turntable 11 drives the tape to cover the right side and bottom of the packaging box, the spring 52 is tightened again under the action of the linkage structure. When the guide block 445 on the turntable 11 engages with the right rocker pin 444, the right rocker pin 444 drives the rocker 443 to rotate. The rocker 443 drives the right limit slider 441 and limit baffle 442 to disengage from the linkage shaft 531. Under the action of the restoring force of the spring 52, the connecting column 517, front connecting piece 515, rear connecting piece 516, cam 514, and rotating piece 53 rotate. At this time, the highest point of the convex arc outer periphery of the cam 514 (set at the highest and lowest points of the convex arc outer periphery of the cam 514) is rotated. The guide (with a vertical surface) contacts the first guide head 331 and the second guide head 342. First, the first guide head 331 engages with the vertical surface 191. Under the restoring force of the first torsion spring 351, the first guide head 331 is driven to quickly return downward through the vertical surface 191. The first guide head 331 drives the first lever 33 to rotate upward around the rod axis 35 to clamp the tape. Then, the second guide head 342 engages with the vertical surface 191. Under the restoring force of the second torsion spring 352, the second guide head 342 is driven to quickly return downward through the vertical surface 191. The second guide head 342 drives the second lever 34 to rotate upward around the rod axis 35. The second lever 34 drives the blade 341 to cut the tape at the bottom of the packaging box. After cutting, the tape end of the tape roll is pressed against the first guide head 342. Between lever 33 and connecting seat 31, the cut tape tail is located at the bottom of the packaging box (the tape tail is not yet attached to the bottom of the packaging box). At the same time, rotating plate 53 drives linkage shaft 531 to rotate, linkage shaft 531 drives sliding frame 451 to move to the left along third guide rod 45, sliding frame 451 drives slide plate 43 to move to the left. At the same time, turntable 11 drives long pin 145 to contact right pin 143 of front lever 14. Long pin 145 drives left pin 181 to rotate upward, left pin 181 drives left side of front lever 18 to rotate upward, right side of front lever 18 to rotate downward, right side of front lever 18 drives right connecting rod 435 to move downward, right connecting rod 435 drives right rear lifting baffle 430 of linkage lever 433 to rotate downward.This causes the right front lifting baffle 425 to rise and seal the right notch 423, while the left front lifting baffle 424 descends, opening the left notch 422. As the right rear lifting baffle 430 opens and disengages from the limit contact with the rear bearing 468, the second tension spring 464 pulls the rear slider 462 and front slider 461 forward, causing the brush rod 465 and brush bristles 466 to extend again. The brush bristles 466 move from right to left to brush and flatten the tape (i.e., the cut end of the tape) on the bottom right side of the packaging box for the second time. After brushing, the double slider sliding device returns to its initial position, and under the guidance of the front and rear guide devices, the brush rod 465 and brush bristles 466 retract back to their original position, ready for the next tape brushing action. The connecting shaft 531 rotates half a turn and then engages with the left limit sliding device, returning to its original position, ready for the next linkage action.

[0029] This solution discloses an automatic tape sealing and packaging machine. Firstly, by installing two levers in the perforation 32 of the fixed frame 1, after the tape has completely covered the entire circumference of the packaging box, the first lever 33 resets first to clamp the tape, and the second lever 34 resets subsequently to cut the tape. This avoids simultaneous cutting and clamping of the tape, which could cause the cut tape end to slip off, making the overall action more reliable and ensuring the tape is smoothly clamped. Secondly, the cooperation between the sliding plate 43 and the first guide rod 41 allows the sliding plate and the double slider sliding device to slide linearly left and right. The brush on the device can smooth the tape on the bottom of the packaging box in a straight line from left to right. The brush has less inertia during operation, making the movement more stable and reliable, and improving the service life of the entire machine. Thirdly, through the guidance and cooperation of the front guide device with the front bearing 467 under the front slider 461, and the guidance and cooperation of the rear guide device with the rear bearing 468 under the rear slider 462, combined with the tension of the first tension spring 463 and the second tension spring 464, and the cooperation of the lifting structure, the brush can extend and retract back and forth. When the brush extends forward, it can smooth the tape on the bottom of the packaging box; when the brush retracts... This design avoids interference with the tape covering the packaging box, ensuring smooth, stable, and reliable operation. The ingenious linkage design of each moving part minimizes the use of cylinders, motors, and other power structures, reducing manufacturing costs and minimizing pipe and wiring entanglement. Fourth, the turntable 11 rotates automatically via the first output shaft 141 of motor 14, eliminating the need for manual operation of the handle and making operation more convenient. Fifth, after being geared by gearbox 15, motor 14, via the second output shaft 151, drives the spring 52 to tighten through a linkage structure and a limiting sliding device, and then the spring is wound through the turntable. The guide block 445 on 11 cooperates with the rocker pin 444, causing the connecting shaft 531 to disengage from the limiting sliding device. Then, under the action of the elastic restoring force of the spring 52, it drives the front connecting piece 515, the rear connecting piece 516, the cam 514, the rotating piece 53, and the connecting shaft 531 to rotate. The cam 514 controls the opening and closing of the tape cutting and pressing device, and the connecting shaft 531 controls the movement of the brush 42. Only one motor and connecting structure are needed to enable all structures to move together. The connecting action is cleverly designed, and the action is more stable and reliable.

Claims

1. An automatic tape case sealing and packing machine, characterized by: Includes a fixed frame (1), on which a tape winding and rotating device, a split tape cutting and pressing device, a brush sliding and telescopic device, a front platform (61) and a rear platform (62) are provided. The tape winding and rotating device includes an inner ring of an annular bearing (17), which is fixed to a fixed frame (1) by fasteners. A turntable (11) is set on the outer ring of the inner ring of the annular bearing (17). The turntable (11) is driven to rotate by power. A tape fixing ring (12) is set on the turntable (11), and a tape roll is set on the tape fixing ring. The split-type tape cutting and pressing device includes a connecting seat (31), which is located in front of the fixing frame (1) inside the turntable (11). A through hole (32) is provided in the fixing frame (1) below the connecting seat (31). A first lever (33) and a second lever (34) are provided in the through hole (32). The tape is held between the first lever (33) and the connecting seat (31). A blade (341) is provided on one side of the second lever (34). The blade (341) cooperates with the tape. A rod shaft (35) is inserted into the first lever (33) and the second lever (34). The rod shaft (35) is fixedly connected to the fixing frame (1). The first lever (33) and the second lever (34) are rotatably engaged with the rod shaft (35). The first lever (33) and the second lever (34) are respectively driven by a rotation control device to rotate downward to open or rotate upward to reset. The brush sliding telescopic device includes two brackets (13) on the back of the fixed frame (1), a first guide rod (41) and a fixed plate (42) between the two brackets (13), a sliding plate (43) on the first guide rod (41), the sliding plate (43) sliding left and right along the first guide rod (41) driven by a power source, a front and rear guide rod (46) in the sliding plate (43), and a double slider sliding device on the front and rear guide rods (46). The double slider sliding device is one or two sets, and the double slider sliding device includes a front slider (461) and a rear slider (462). The front slider (461) and the rear slider (462) slide back and forth along the front and rear guide rods (46) respectively. A first tension spring (463) is provided between the front of the rear slider (462) and the front of the slide plate (43). A brush rod (465) is provided on one side of the front slider (461). Brush bristles (466) are provided on the end of the brush rod (465) away from the front slider (461). A front bearing (467) is provided at the lower part of the front slider (461). A rear bearing (468) is provided at the lower part of the rear slider (462). A front guide device for guiding the front slider (461) and a rear guide device for guiding the rear slider (462) are provided on the fixing plate (42). The front guide device is guided and cooperated with the front bearing (467) under the front slider (461). The rear guide device is guided and cooperated with the rear bearing (468) under the rear slider (462).

2. The automatic tape sealing and packaging machine as described in claim 1, characterized in that: The rotation control device includes a cam (514), a first guide head (331) is provided at the other end of the first lever (33), and a second guide head (342) is provided at the other end of the second lever (34). The first guide head (331) and the second guide head (342) respectively cooperate with the cam (514). A first torsion spring (351) that provides an upward elastic restoring force to the first lever (33) and a second torsion spring (352) that provides an upward elastic restoring force to the second lever (34) are provided on the rod shaft (35).

3. The automatic tape sealing and packaging machine as described in claim 2, characterized in that: A second guide rod (44) and a third guide rod (45) are provided between the two left and right brackets (13). A spring-loaded energy storage and rotating linkage device is provided on the back of the fixed frame (1). The spring-loaded energy storage and rotating linkage device includes a fixed shaft (51). A connecting sleeve (511) is sleeved on the outer wall of the fixed shaft (51). The connecting sleeve (511) is rotatably engaged with the fixed shaft (51). A bearing and a connecting pin (513) are provided on the outer wall of the connecting sleeve (511). A cam (514), a front connecting piece (515), and a rear connecting piece (516) are provided on the bearing. The cam (514), the front connecting piece (515), and the rear connecting piece (516) are rotatably engaged with the connecting sleeve (511) via the bearing. One side of the cam (514) is fixed to the front connecting piece (515). The front connecting piece (515) and the rear connecting piece (516) are fixedly connected via a connecting post (517). A spring (52) is provided between the connecting piece (515) and the rear connecting piece (516). One end of the innermost ring of the spring (52) is connected to the connecting pin (513), and one end of the outermost ring of the spring (52) is connected to the connecting post (517). A rotating piece (53) is provided on one side of the rear connecting piece (516). One end of the rotating piece (53) is fixed to the rear connecting piece (516), and a connecting shaft (531) is provided on the other end of the rotating piece (53). Two sets of limiting sliding devices are provided on the second guide rod (44). The limiting sliding devices are limited and cooperate with one end of the connecting shaft (531). A sliding frame (451) is provided on the third guide rod (45). A guide groove (452) is opened in the sliding frame (451). The guide groove (452) cooperates with the other end of the connecting shaft (531). The upper part of the sliding frame (451) cooperates with the sliding plate (43).

4. The automatic tape sealing and packaging machine as described in claim 3, characterized in that: The limiting sliding device includes two limiting sliders (441) on the second guide rod (44), which slide in cooperation with the second guide rod (44). A limiting baffle (442) is provided on one end of the limiting slider (441) near the connecting shaft (531), and the limiting baffle (442) cooperates with the connecting shaft (531). A return spring (446) is sleeved on the outer wall of the second guide rod (44) between the limiting slider (441) and the bracket (13). 1) The end away from the linkage shaft (531) passes through the bracket (13). A swing rod (443) is set on the left and right sides of the back of the fixed frame (1). The swing rod (443) is rotatably connected to the fixed frame (1) via a rotating shaft. The lower end of the swing rod (443) is connected to the limiting slider (441). A swing rod pin (444) is set on the upper end of the swing rod (443). A guide block (445) is set on the turntable (11). One end of the swing rod pin (444) passes through the fixed frame (1) and cooperates with the guide block (445).

5. The automatic tape sealing and packaging machine as described in claim 3, characterized in that: A motor (14) is provided on one side of the two left and right brackets (13). A first driving gear (142) is provided on the first output shaft (141) of the motor (14). A driven gear (111) is provided on the outer ring of the turntable (11). The driven gear (111) meshes with the first driving gear (142).

6. The automatic tape sealing and packaging machine as described in claim 5, characterized in that: The motor (14) drives the connecting sleeve (511) to rotate via a linkage structure. The linkage structure includes a gearbox (15) installed on one side of the motor (14), a second drive gear (152) installed on the second output shaft (151) of the gearbox (15), a bearing installed on the outer wall of the first output shaft (141), and a first bushing (144) installed on the outer wall of the bearing. The first bushing (144) is rotatably engaged with the first output shaft (141) via the bearing. A first driven gear (145) and a second driven gear (146) are installed on the first bushing (144). The first driven gear (145) and the second drive gear (152) are in contact with each other. The fixed frame (1) is provided with a transmission shaft (16) on the back. A bearing is provided on the transmission shaft (16). A second bushing (162) is provided on the bearing. The second bushing (162) is rotatably engaged with the transmission shaft (16) via the bearing. A third driven gear (163) and a fourth driven gear (164) are provided on the second bushing (162). The third driven gear (163) and the second driven gear (146) are connected via a first chain (165). A fifth driven gear (518) is provided on the connecting sleeve (511). The fifth driven gear (518) and the fourth driven gear (164) are connected via a second chain (166).

7. The automatic tape sealing and packaging machine as described in claim 1, characterized in that: The front guide device includes a horizontally arranged front guide plate (421), which is fixed to a fixed plate (42). A left notch (422) and a right notch (423) are provided in the front guide plate (421). A left front lifting baffle (424) is provided in the left notch (422), and a right front lifting baffle (425) is provided in the right notch (423). The left front lifting baffle (424) and the right front lifting baffle (425) are raised or lowered by a lifting structure. The front bearing (467) at the lower part of the front slider (461) cooperates with the front guide plate (421), the left notch (422), the right notch (423), the left front lifting baffle (424), or the right front lifting baffle (425). The rear guide device includes a V-shaped middle guide plate (426) and a horizontally arranged rear guide plate (427). The guide plate (426) and the rear guide plate (427) are respectively fixed to the fixed plate (42). The middle guide plate (426) is provided with a middle and rear plate connecting structure in the middle. The rear guide plate (427) is provided with a middle notch (428) in the middle. The middle guide plate (426) is connected to the rear guide plate (427) through the middle and rear plate connecting structure and the middle notch (428). The two ends of the rear guide plate (427) are provided with a left rear lifting baffle (429) and a right rear lifting baffle (430). The left rear lifting baffle (429) and the right rear lifting baffle (430) are driven to rise or fall by the lifting structure. The rear bearing (468) at the bottom of the rear slider (462) cooperates with the middle guide plate (426) or the middle and rear plate connecting structure or the rear guide plate (427) or the left rear lifting baffle (429) or the right rear lifting baffle (430).

8. The automatic tape sealing and packaging machine as described in claim 7, characterized in that: The lifting structure includes a left front lifting baffle (424) located below the fixed plate (42) with a left front connecting plate (431), the middle of the left front connecting plate (431) being rotatably connected to the front guide plate (421); a right front lifting baffle (425) located below the fixed plate (42) with a right front connecting plate (432), the middle of the right front connecting plate (432) being rotatably connected to the front guide plate (421); and a fixed plate (42) located between the left rear lifting baffle (429) and the right rear lifting baffle (430). A linkage lever (433) is provided below the fixed plate (42), and the middle pin of the linkage lever (433) is rotatably connected to the lower part of the fixed plate (42). A left connecting rod (434) is provided between the end of the left front linkage plate (431) away from the left front lifting baffle (424) and the lower part of the left rear lifting baffle (429). A right connecting rod (435) is provided between the end of the right front linkage plate (432) away from the right front lifting baffle (425) and the lower part of the right rear lifting baffle (430). A front lever (18) is provided on the front side of the fixed frame (1). The middle pin of the front lever (18) is rotatably connected to the fixed frame (1). One end of the front lever (18) is connected to the left connecting rod (434), and the other end of the front lever (18) is connected to the right connecting rod (435). A left paddle (181) is provided at one end of the front lever (18), and the left paddle (181) is fixed to the front lever (18) by fasteners. A lever (182) is provided at the other end of the front lever (18). A right paddle (183) is provided on the front side of the fixed frame (1) in front of the lever (182). The pin is rotatably connected to the fixed frame (1). The right paddle (183) has a paddle hole (184). The lever (182) is engaged with the paddle hole (184). The distance S1 between the left paddle (181) and the front lever (18) is greater than the distance S2 between the right paddle (183) and the front lever (18). The turntable (11) is provided with a long paddle pin (185) and a short paddle pin (186). The long paddle pin (185) is engaged with the left paddle pin (181), and the short paddle pin (186) is engaged with the right paddle pin (183).

9. The automatic tape sealing and packaging machine as described in claim 7, characterized in that: The aforementioned middle and rear plate connection structure includes a mounting groove (436) in the middle of the middle guide plate (426), a pull pin (437) in the mounting groove (436), a transition plate (438) above the opening of the mounting groove (436), a swing plate (439) between the transition plate (438) and the mounting groove (436), a third tension spring (440) connecting one end of the swing plate (439) to the pull pin (437), and the other end of the swing plate (439) being connected to the rear guide plate (427) through the middle notch (428).

10. The automatic tape sealing and packaging machine as described in claim 1, characterized in that: A fixing plate (47) is provided on the sliding plate (43), and an inclined guide plate (471) is provided on the fixing plate (47). A roller (472) is provided at the end of the brush rod (465) away from the brush bristles (466), and the roller (472) cooperates with the inclined guide plate (471).

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