A smart wet kraft paper sealing machine

Abstract

This invention relates to the field of carton sealing machine technology and discloses an intelligent wet kraft paper sealing machine. Each set of inner nylon lining boards has an outer iron plate attached to its outer side. A kraft paper roll support is fixed to one set of the outer iron plates. An inner fixed shaft is horizontally arranged outward on the kraft paper roll support. A kraft paper roll rotating shaft is rotatably mounted on the inner fixed shaft. A rotating shaft sleeve is fitted onto the rotating shaft, and a kraft paper roll is installed on the rotating shaft sleeve. In this invention, at this height position, the self-locking pressure plate's locking tongue presses against the end of the tilting frame of the raised guide pressure plate mechanism, locking the entire guide pressure plate mechanism and preventing the positioning pin from shifting downwards and contacting the upper surface of the carton, thus preventing damage to the kraft paper. Furthermore, during the upward lifting of the self-locking wheel, the two sets of rear wheel lifting arms move upwards, acting on the bottom of the rear wheel axle sleeve to provide power to the rear wheel mechanism, pushing the entire rear wheel mechanism to tilt upwards along the rear wheel slide rail.

Description

Technical Field

[0001] This invention relates to the field of carton sealing machine technology, and in particular to an intelligent wet kraft paper carton sealing machine. Background Technology

[0002] Carton sealing machines are commonly used packaging machinery, mainly used for sealing cartons or boxes. They are suitable for standalone operation or for forming automated packaging production lines with carton openers and packers. Carton sealing machines primarily use BOPP (Bonded Plug-in Polypropylene) adhesive tape and wet kraft paper to seal cartons. The wet kraft paper is made of natural kraft paper and water-soluble starch adhesive, which can decompose rapidly in the natural environment, replacing traditional plastic tape and reducing white pollution at the source. Furthermore, the cartons and tape can be recycled as a whole after sealing, avoiding pollution of the carton recycling process by plastic tape and significantly reducing the cost of packaging waste disposal. Since commonly used self-adhesive tape often leaves no trace after opening and resealing the carton, resulting in property loss, using wet kraft paper to seal cartons can avoid this situation.

[0003] The surface of the wet kraft paper tape is coated with a dry adhesive layer. When using it, apply an appropriate amount of water on top of this coating to dissolve the adhesive layer on the kraft paper surface. The original dry adhesive layer becomes a wet adhesive layer. Then, stick this kraft paper tape onto the cardboard box to complete the sealing of the cardboard box.

[0004] The biggest challenge in sealing wet kraft paper boxes is strictly controlling the amount and temperature of water applied to the adhesive layer. This ensures the adhesive layer melts completely and solidifies promptly upon contact with the cardboard box, guaranteeing a firm bond and allowing the kraft paper to move with the box. Insufficient water or a low temperature prevents the adhesive from melting properly, while excessive water or a high temperature prevents it from solidifying quickly enough. Both situations result in the kraft paper not adhering stably to the box and failing to seal. Furthermore, due to the generally used... The self-adhesive tape mechanism used in this machine has a problem: when the front wheel presses down on the carton, its rotation cannot ensure that the kraft paper stays in place on the front of the carton. Achieving the appropriate moisture content and temperature is already a challenge. In addition, the influence of changes in ambient temperature and humidity, as well as the inconsistent performance of the kraft paper adhesive layer, directly affect the formation of the aforementioned appropriate moisture content and temperature. Therefore, similar machines currently struggle to operate stably. Furthermore, sometimes the kraft paper curls up along its center line after being wetted, causing wrinkles. This can affect the sealing quality or even lead to sealing failure.

[0005] In summary, considering that existing facilities cannot meet the needs of work, we propose an intelligent wet kraft paper sealing machine. Summary of the Invention

[0006] The main objective of this invention is to provide an intelligent wet kraft paper sealing machine that can effectively solve the problems in the background art.

[0007] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0008] An intelligent wet kraft paper sealing machine includes an outer iron plate and an inner nylon lining plate. The inner nylon lining plate is symmetrically distributed in two groups. An outer iron plate is attached to the outer side of each group of inner nylon lining plates. The two groups of outer iron plates are connected and fixed at the corners by support shafts. The number of support shafts is preferably 3-4 groups. A kraft paper roll support is fixed on one group of outer iron plates. An inner fixing shaft is horizontally arranged outward on the kraft paper roll support. A kraft paper roll rotating shaft is rotatably arranged outside the inner fixing shaft. A rotating shaft sleeve is sleeved on the kraft paper roll rotating shaft. A kraft paper roll is installed on the rotating shaft sleeve. The kraft paper on the kraft paper roll is rolled outward.

[0009] In a preferred embodiment of the intelligent wet kraft paper sealing machine of the present invention, a brake lever is movably disposed above the rotating shaft sleeve, a brake lever pad acting on the rotating shaft sleeve is fixed at the bottom of the brake lever, a brake lever shaft for the brake lever to rotate is welded to the kraft paper roll bracket, a movable pulley bracket is included at the end of the brake lever away from the brake lever shaft, a brake movable pulley shaft is fixed at the lower end of the movable pulley bracket, a brake movable pulley is sleeved on the brake movable pulley shaft, a bridge wheel bracket is fixed on the outer iron plate and located on the horizontal side of the kraft paper roll bracket, a bridge wheel shaft is horizontally rotatably disposed on the bridge wheel bracket, and a bridge wheel shaft is connected to one end of the bridge wheel shaft.

[0010] In a preferred embodiment of the intelligent wet kraft paper sealing machine of the present invention, a driven wheel and a driven wheel are symmetrically arranged between the two sets of inner nylon lining plates and below the bridge wheel. The ends of the driven wheel and the driven wheel are fixed with axles. A driven wheel synchronous pulley is sleeved on the axle of the driven wheel. A motor synchronous pulley is arranged on one side of the driven wheel synchronous pulley. The driven wheel synchronous pulley and the motor synchronous pulley are connected by a synchronous belt for transmission. The motor synchronous pulley is sleeved on the output shaft of the drive motor. The drive motor is mounted between the two sets of inner nylon lining plates.

[0011] In a preferred embodiment of the intelligent wet kraft paper sealing machine of the present invention, a first kraft paper guide plate is symmetrically fixed between the two sets of inner nylon lining plates and below the passive wheel and the active wheel. A movable blade is movably arranged below the first kraft paper guide plate on the right, and a fixed blade is fixedly arranged at the lower end of the first kraft paper guide plate on the left. The extension of the movable blade is closely attached to one side of the fixed blade, so that the blade edges of the two blades are in close contact when cutting the kraft paper.

[0012] As a preferred embodiment of the intelligent wet kraft paper sealing machine of the present invention, a second kraft paper guide plate is connected below the first kraft paper guide plate on the left. A constant temperature hot water tank is fixed between the two sets of inner nylon lining plates and opposite the second kraft paper guide plate. A water-absorbing foam block acting on the front side of the kraft paper is provided at the upper left position of the constant temperature hot water tank. A water inlet pipe is connected to the upper right position of the constant temperature hot water tank. An acupressure plate bracket connected to the inner nylon lining plate is provided between the constant temperature hot water tank and the second kraft paper guide plate. Two sets of acupressure plates acting on the front edge of the kraft paper are symmetrically installed on the acupressure plate bracket. A small protruding ramp acting on the middle position of the back side of the kraft paper is installed at the middle position of the second kraft paper guide plate.

[0013] As a preferred embodiment of the intelligent wet kraft paper sealing machine of the present invention, the kraft paper roll is conveyed sequentially through the bottom of the brake pulley, the bridge wheel, the gap between the passive wheel and the active wheel, the gap between the two sets of first kraft paper guide plates, the gap between the raised small ramp and the gap between the two sets of finger pressure plates.

[0014] As a preferred embodiment of the intelligent wet kraft paper sealing machine of the present invention, a guide pressure plate mechanism is installed between the two sets of inner nylon boards and on the left side of the second kraft paper guide plate. The guide pressure plate mechanism includes a flipping frame, a pressure plate, a positioning pin, a rear roller shaft, a front roller shaft, a rear roller shaft wheel, and a front roller shaft wheel. The right end of the flipping frame is connected downward to a pressure plate that interacts with the front facade of the carton. A positioning pin for inserting kraft paper is installed on the pressure plate at a lower position. The rear roller shaft and the front roller shaft are fixed sequentially from right to left inside the flipping frame. Both ends of the rear roller shaft are fitted with rear roller shaft wheels, and both ends of the front roller shaft are fitted with front roller shaft wheels.

[0015] In a preferred embodiment of the intelligent wet kraft paper sealing machine of the present invention, the inner surfaces of both sets of inner nylon lining plates are horizontally provided with inner horizontal tracks for the movement of the rear roller shaft and the front roller shaft. The left end of the inner horizontal track is connected to a curved track for the movement of the front roller shaft. The outer surfaces of both sets of inner nylon lining plates are provided with outer tension spring grooves that communicate with the inner horizontal tracks. Pressure plate tension springs are movably arranged in the outer tension spring grooves. The left ends of the two sets of pressure plate tension springs are respectively connected to the end of the rear roller shaft. The right ends of the two sets of pressure plate tension springs extend outward from the outer tension spring grooves and are connected to the tension spring shaft. The tension spring shaft is horizontally installed between the two sets of outer iron plates.

[0016] In a preferred embodiment of the intelligent wet kraft paper sealing machine of the present invention, a pressure plate locker is installed between the two sets of inner nylon lining boards and on the left side of the guide pressure plate mechanism. The pressure plate locker includes a self-locking bracket, a self-locking pressure plate latch, a self-locking shaft, a bearing, a torsion spring, a self-locking clamp, a self-locking wheel, a rear wheel lifting arm, and a rear wheel lifting arm support shaft. A self-locking pressure plate latch that interacts with the left end of the flipping frame is installed at the right end of the self-locking bracket, and a self-locking device is installed through the middle of the self-locking bracket. The self-locking device has a rotating shaft at both ends connected by bearings and an outer iron plate. A torsion spring is installed between the bearing and the outer side of the self-locking device bracket. Two sets of self-locking device clamps are connected downwards at the left end of the self-locking device bracket. A self-locking device wheel that acts on the front and upper surfaces of the carton is installed between the two sets of self-locking device clamps. Two sets of rear wheel lifting arms are symmetrically fixed to the inner side of the self-locking device bracket. The two sets of rear wheel lifting arms are connected and fixed by several sets of rear wheel lifting arm support shafts. Preferably, there are three sets of rear wheel lifting arm support shafts.

[0017] In a preferred embodiment of the intelligent wet kraft paper sealing machine of the present invention, a rear wheel mechanism is installed between the two sets of inner nylon lining boards and on the left side of the pressure plate locker. The rear wheel mechanism includes a rear wheel slide plate, a rear wheel slide plate support shaft, a lifting rear wheel shaft, a lifting rear wheel axle sleeve, and a rear wheel. The rear wheel slide plates are symmetrically distributed in two sets. A rear wheel slide plate support shaft is fixed at the upper position between the two sets of rear wheel slide plates. A lifting rear wheel shaft is fixed at the middle position between the two sets of rear wheel slide plates. A lifting rear wheel axle sleeve is rotatably provided on the lifting rear wheel shaft. The lifting arms of the two sets of rear wheels act on the bottom of the lifting rear wheel axle sleeve. A rear wheel acting on the rear vertical surface and the upper surface of the carton is installed at the lower position between the two sets of rear wheel slide plates.

[0018] In a preferred embodiment of the intelligent wet kraft paper sealing machine of the present invention, the inner sides of both sets of inner nylon lining boards are inclinedly fixed with rear wheel slide rails. The rear wheel slide rails are provided with rear wheel slide tracks for linear movement of the rear wheel slides. Two sets of tension spring hooks are symmetrically installed on the lower outer side of each set of rear wheel slides. Rear wheel return springs are connected to the two sets of tension spring hooks respectively. The upper end of the rear wheel return spring is fixed on the rear wheel slide support shaft. The total number of rear wheel return springs is 4 sets.

[0019] In a preferred embodiment of the intelligent wet kraft paper sealing machine of the present invention, a second guide plate bracket is fixedly arranged between the two sets of inner nylon lining boards and below the first kraft paper guide plate. The second kraft paper guide plate is fixed to the bottom of the second guide plate bracket. A damper bracket is fixed to the bottom of the second guide plate bracket and to the left of the second guide plate bracket. A damper is movably arranged downward inside the damper bracket.

[0020] As a preferred embodiment of the intelligent wet kraft paper sealing machine of the present invention, wherein: a rotating tube is fixed to the top of the damper, a damper shaft is provided through the rotating tube at the bottom of the damper bracket, the rotating tube rotates around the damper shaft, an inlet guide frame is connected to the left end of the damper, a bolt hole is provided on the left side of the upper end face of the damper bracket, an adjusting bolt acting on the upper end of the inlet guide frame is installed in the bolt hole, preferably two sets of adjusting bolts, and friction plates acting on the upper end face of the flipping frame are provided at the bottom of both the damper and the inlet guide frame.

[0021] In a preferred embodiment of the intelligent wet kraft paper sealing machine of the present invention, the damper bracket and the damper are connected by a damping spring device. The damping spring device includes a spring connecting column, an upper pin, a lower pin, and a damping spring. The spring connecting column is fixed at the bottom center of the damper bracket. The lower end of the spring connecting column is connected to the upper pin. The upper pin is fixed at the center of the upper end face of the damper. The lower end of the spring connecting column is connected to a damping spring sleeved on the outside of the upper pin and the lower pin.

[0022] As a preferred embodiment of the intelligent wet kraft paper sealing machine of the present invention, wherein: an elastic pin is horizontally installed on the right end face of the flipping frame, a telescopic opening is provided through the middle position of the second kraft paper guide plate, a telescopic protrusion is movably arranged in the telescopic opening, and the small protrusion is fixed to the right end of the telescopic protrusion.

[0023] In a preferred embodiment of the intelligent wet kraft paper sealing machine of the present invention, the left end face of the second kraft paper guide plate is symmetrically provided with two sets of protruding brackets, and two sets of protruding shafts are symmetrically installed on both sides of the upper position of the telescopic protruding seat. The ends of the protruding shafts are rotatably connected to the protruding brackets. A small torsion spring sleeved on the outside of the protruding shaft is fixed between the protruding brackets and the telescopic protruding seat. Two limiting pins acting on the left end face of the telescopic opening are symmetrically installed on both sides of the lower position of the telescopic protruding seat. The elastic pin presses the middle position of the telescopic protruding seat, causing the small protruding slope to extend out of the telescopic opening and interact with the kraft paper.

[0024] This invention provides an intelligent wet kraft paper sealing machine, which has the following significant improvements and advantages compared with the prior art:

[0025] (1) When the kraft paper enters the gap between the raised small ramp and the two sets of finger pressure plates, the kraft paper at the end of the raised small ramp and the finger pressure plate are used to support the middle of the kraft paper passing through this place, and press the two sides onto the second kraft paper guide plate, so that the kraft paper here forms an arc shape that is easy to press, thereby preventing the kraft paper from rolling out from the ramp to the bottom of the pressure plate, and preventing the kraft paper roll from hitting the positioning nail in advance. In particular, it solves the problem that the kraft paper is easy to collapse when the kraft paper moves from bottom to top when a similar mechanism is installed under the carton to seal the bottom of the carton.

[0026] (2) The kraft paper is firmly pressed onto the carton between the pressure plate and the front facade of the carton. As long as there is enough water, the glue layer on the kraft paper can be fully melted and have enough time to stick firmly to the carton. This makes the requirements for the amount and temperature of water no longer precise, demanding and sensitive, greatly increasing the tolerance of the traditional mechanism to the requirements of water amount and temperature, and greatly improving the stability and practicality of the machine.

[0027] (3) When the drive motor stops, or when the kraft paper is cut, the kraft paper loosens and is no longer taut. Under the action of the return spring and its own weight, the brake pulley is at its lowest point. The brake pad at the lower end of the brake lever contacts the shaft sleeve, making the kraft paper roll unable to rotate. This brakes the shaft sleeve and the kraft paper roll to prevent the kraft paper roll from loosening due to rotational inertia.

[0028] (4) When the front roller shaft enters the turning track, the guide pressure plate mechanism starts to tilt up as a whole. The rear roller shaft, along with the rear roller shaft, is still moving on the inner horizontal track. When the front roller shaft, along with the front roller shaft, reaches the end of the turning track, and the rear roller shaft reaches the end of the straight groove of the track, the guide pressure plate mechanism tilts up completely, making it easy for the carton to pass under the guide pressure plate mechanism, which is highly flexible.

[0029] (5) The front face of the carton pushes the self-locking wheel to rotate, and the two generate a squeezing force, thereby using the self-locking wheel to smooth the kraft paper on the front face of the carton a second time, improving the sealing effect. At the same time, the self-locking shaft on the self-locking bracket rotates, and the self-locking wheel is lifted up until it flips to the upper surface of the carton and stops at this height. The self-locking wheel presses and smooths the kraft paper on the upper surface of the carton. On the one hand, at this height, the self-locking pressure plate tongue is pressed against the end of the flipping frame of the raised guide pressure plate mechanism, locking the entire guide pressure plate mechanism and preventing the positioning pin from deviating downward and contacting the upper surface of the carton, thus scratching the kraft paper. On the other hand, during the upward lifting of the self-locking wheel, the two sets of rear wheel lifting arms move upward and act on the bottom of the rear wheel bushing, providing power to the rear wheel mechanism and pushing the entire rear wheel mechanism to tilt upward along the rear wheel slide rail, which facilitates the subsequent pressing of the carton by the rear wheel and has strong linkage.

[0030] (6) The damper is pressed obliquely on the guide plate mechanism, which generates resistance to the guide plate mechanism. The damper rotates around the damper axis and is lifted upward to allow the tilting frame to continue moving to the right. Under the action of the reverse elastic force of the damping spring, the damper can apply the required pressure to the guide plate mechanism. Combined with the friction action of the friction plate, the guide plate mechanism decelerates immediately and returns to its original position at a low speed, which alleviates the impact vibration and noise, and achieves the purpose of protecting the guide plate mechanism and the inner horizontal track. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the external structure of an intelligent wet kraft paper sealing machine according to the present invention, taken from one direction.

[0032] Figure 2 This is a schematic diagram of the external structure of an intelligent wet kraft paper sealing machine according to the present invention from another direction;

[0033] Figure 3 This is a schematic diagram of the specific structure of the braking mechanism of the present invention;

[0034] Figure 4 This is a top view of the interior of the carton sealing machine of the present invention;

[0035] Figure 5 This is a bottom-view schematic diagram of the interior of the carton sealing machine of the present invention;

[0036] Figure 6 This is a schematic diagram of the guiding structure of the kraft paper of the present invention;

[0037] Figure 7 This is a schematic diagram showing the installation position of the absorbent foam block of the present invention;

[0038] Figure 8 This is a schematic diagram showing the relative positions of each mechanism inside the carton sealing machine of the present invention when there are no cartons inside;

[0039] Figure 9 This is a schematic diagram showing the relative positions of the various mechanisms inside the carton sealing machine of the present invention when it is in the carton sealing state;

[0040] Figure 10 This is a schematic diagram of the specific structure of the guide plate mechanism of the present invention;

[0041] Figure 11 This is a cross-sectional view of the nylon lining sheet of the present invention;

[0042] Figure 12 This is a schematic diagram of the specific structure of the pressure plate lock of the present invention;

[0043] Figure 13 This is a schematic diagram of the specific structure of the rear wheel mechanism of the present invention;

[0044] Figure 14This is a schematic diagram of the specific structure of the rear wheel skateboard track plate of the present invention;

[0045] Figure 15 This is a schematic diagram of the external structure of the damping mechanism in one direction in Embodiment 2 of the present invention;

[0046] Figure 16 This is a schematic diagram of the external structure of the damping mechanism in another direction in Embodiment 2 of the present invention;

[0047] Figure 17 This is a schematic diagram of the specific structure of the damper support of the present invention;

[0048] Figure 18 This is a schematic diagram of the specific structure of the damper described in this invention;

[0049] Figure 19 This is a schematic diagram of the specific structure of the telescopic protrusion seat of the present invention;

[0050] Figure 20 This is a schematic diagram showing the installation position of the elastic ejector pin of the present invention.

[0051] In the diagram: 1. Outer iron plate; 2. Inner nylon lining; 3. Support shaft; 4. Kraft paper roll bracket; 5. Kraft paper roll shaft; 6. Shaft sleeve; 7. Kraft paper roll; 8. Kraft paper; 10. Brake lever; 11. Brake lever pad; 12. Brake lever shaft; 13. Moving pulley bracket; 14. Brake moving pulley; 15. Brake moving pulley shaft; 16. Bridge pulley bracket; 17. Bridge pulley axle; 18. Bridge pulley; 20. Driven pulley; 21. Driving pulley; 22. Wheel axle; 23. Driving pulley synchronous pulley; 24. Motor synchronous pulley; 25. Synchronous belt 26. Drive motor; 27. First kraft paper guide plate; 28. Moving blade; 29. ​​Fixed blade; 30. Second kraft paper guide plate; 31. Constant temperature hot water tank; 32. Water-absorbing foam block; 33. Water inlet pipe; 34. Acupressure plate bracket; 35. Acupressure plate; 36. Raised small ramp; 40. Guide pressure plate mechanism; 41. Tilting frame; 42. Pressure plate; 43. Positioning pin; 44. Rear roller shaft; 45. Front roller shaft; 46. Rear roller shaft wheel; 47. Front roller shaft wheel; 50. External tension spring groove; 51. Pressure plate tension spring; 52. Tension spring shaft; 53. 54. Inner horizontal track; 60. Turning track; 61. Pressure plate locker; 62. Self-locking device bracket; 63. Self-locking device pressure plate latch; 64. Self-locking device shaft; 65. Bearing; 66. Torsion spring; 67. Self-locking device clamping plate; 68. Self-locking device wheel; 69. Rear wheel lifting arm; 70. Rear wheel lifting arm support shaft; 71. Rear wheel mechanism; 72. Rear wheel sliding plate; 73. Rear wheel sliding plate support shaft; 74. Lifting rear wheel axle; 75. Lifting rear wheel axle sleeve; 80. Rear wheel sliding plate track; 81. Rear wheel sliding plate track; 82. Tension spring hook; 83. Rear wheel return spring; 90. Second guide plate bracket; 91. Damper bracket; 92. Adjusting bolt; 93. Bolt hole; 94. Damper shaft; 100. Damper; 101. Rotating tube; 102. Inlet guide frame; 103. Friction plate; 110. Damping spring; 111. Spring connecting column; 112. Upper pin; 113. Lower pin; 114. Damping spring; 120. Elastic pin; 121. Telescopic protrusion seat; 122. Telescopic port; 123. Protrusion bracket; 124. Protrusion shaft; 125. Limit pin. Detailed Implementation

[0052] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0053] Example 1: As Figures 1-14As shown, this embodiment provides an intelligent wet kraft paper sealing machine, including an outer iron plate 1 and an inner nylon liner 2. The inner nylon liner 2 is symmetrically distributed in two groups. The outer iron plate 1 is attached to the outer side of each group of inner nylon liner 2. The two groups of outer iron plates 1 are connected and fixed by a support shaft 3 at the corners, which serves to connect and fix them. A kraft paper roll support 4 (outer or inner side of the outer iron plate 1) is fixed on one of the outer iron plates 1. An inner fixing shaft is horizontally arranged outward on the kraft paper roll support 4. A kraft paper roll rotating shaft 5 is rotatably arranged outside the inner fixing shaft. A rotating shaft sleeve 6 is sleeved on the kraft paper roll rotating shaft 5. A kraft paper roll 7 is installed on the rotating shaft sleeve 6. Limiting clamps are provided on both sides of the kraft paper roll 7, which serves to limit it. The kraft paper 8 on the kraft paper roll 7 is rolled outward.

[0054] A brake lever 10 is movably mounted above the rotating sleeve 6, and a brake lever pad 11 acting on the rotating sleeve 6 is fixed at the bottom of the brake lever 10. A brake lever shaft 12 for the brake lever 10 to rotate around is welded onto the kraft paper roll bracket 4. The end of the brake lever 10 away from the brake lever shaft 12 includes a movable pulley bracket 13. Figure 2 and Figure 3 As shown.

[0055] Specifically, a brake pulley shaft 15 is fixed to the lower end of the movable pulley bracket 13. A brake pulley 14 is sleeved on the brake pulley shaft 15. The brake pulley shaft 15 and the brake pulley 14 move relative to each other (a return spring can be installed on the brake pulley 14 to apply a downward return force to the brake pulley 14 at its highest point). Figure 2 and Figure 3 As shown.

[0056] Among them, a bridge wheel bracket 16 is fixed on the outer iron plate 1 and on the horizontal side of the kraft paper roll bracket 4. A bridge wheel axle 17 is horizontally rotatable on the bridge wheel bracket 16. One end of the bridge wheel axle 17 is connected to a bridge wheel 18. The bridge wheel 18 is located higher than the brake pulley 14. Figures 2-4 As shown.

[0057] Furthermore, a driven wheel 20 and a driving wheel 21 are symmetrically arranged between the two sets of inner nylon plates 2 and below the bridge wheel 18. Both the driven wheel 20 and the driving wheel 21 have axles 22 fixed to their ends. A driving wheel synchronizing wheel 23 is sleeved on the axle 22 of the driving wheel 21. Figure 4 and Figure 6 As shown.

[0058] In this embodiment, a motor synchronous pulley 24 is provided on one side of the drive wheel synchronous pulley 23. The drive wheel synchronous pulley 23 and the motor synchronous pulley 24 are connected by a synchronous belt 25. The motor synchronous pulley 24 is sleeved on the output shaft of the drive motor 26. The drive motor 26 is mounted between two sets of inner nylon plates 2. Adjusting the rotation angle of the drive motor 26 and the position of the first sensor can adjust the length of the kraft paper 8 on the front facade of the carton. Adjusting the position of the second sensor can adjust the length of the kraft paper 8 on the rear facade of the carton. The specific installation positions of the first and second sensors are set according to the actual situation, such as... Figure 6 As shown.

[0059] Furthermore, a first kraft paper guide plate 27 is symmetrically fixed between the two sets of inner nylon plates 2 and below the driven wheel 20 and the driving wheel 21. (The first kraft paper guide plate 27 is composed of a set of plastic sheets or stainless steel sheets spaced at equal intervals and fixed by positioning pins.) A movable blade 28 is movably arranged below the right side of the first kraft paper guide plate 27, and a fixed blade 29 is fixedly arranged at the lower end of the left side of the first kraft paper guide plate 27. The extension of the movable blade 28 is closely attached to one side of the fixed blade 29, so that the blade edges of the two blades are in close contact when cutting the kraft paper 8. Under the trigger of the second sensor or manual button, the electromagnet or cylinder is activated, and the movable blade 28 moves to cut the kraft paper 8 between the two blades. Figure 6 and Figure 7 As shown.

[0060] Furthermore, a second kraft paper guide plate 30 is connected below the first kraft paper guide plate 27 on the left. A constant temperature hot water tank 31 is fixed between the two sets of inner nylon lining plates 2 and opposite the second kraft paper guide plate 30. A water-absorbing foam block 32 acting on the front of the kraft paper 8 is set at the upper left position of the constant temperature hot water tank 31 (if a water-absorbing roller is used, the path of the kraft paper 8 can be slightly modified by the guide plate). A water inlet pipe 33 is connected to the upper right position of the constant temperature hot water tank 31. Figure 6 and Figure 7 As shown.

[0061] The constant temperature hot water tank 31 is equipped with a water tank on the rack near the tank, which stores more cold water. The constant temperature hot water tank 31 and the water tank are connected by a connecting pipe. The water level in the constant temperature hot water tank 31 is the same as that in the water tank. The water in the constant temperature hot water tank 31 is replenished by the cold water in the water tank and heated in the constant temperature hot water tank 31 to meet the sealing needs. If required for operation, the water tank can be connected to a water source. The constant temperature hot water tank 31 is equipped with a heating rod, a thermometer, a water inlet and an overflow outlet to ensure that there is a sufficient and appropriate amount of water in the water tank. The water-absorbing foam block 32 absorbs the warm water in the constant temperature hot water tank 31. The water in the water-absorbing foam block 32 is applied to the glue layer of the kraft paper 8, so that the dry glue layer on the surface of the kraft paper 8 melts into a wet glue layer.

[0062] Among them, a pressure plate bracket 34 connected to the inner nylon lining plate 2 is provided between the constant temperature hot water tank 31 and the second kraft paper guide plate 30, serving as a support and carrier. Two sets of pressure plates 35 (similar to pressing with fingers) are symmetrically installed on the pressure plate bracket 34, acting on the front edge of the kraft paper 8. A raised small ramp 36 acting on the middle of the back of the kraft paper 8 is installed in the middle position of the second kraft paper guide plate 30. The surface of the raised small ramp 36 is curved, narrow at the top and wide at the bottom, as shown in the figure. Figure 5 and Figure 7 As shown.

[0063] The kraft paper roll 7 is conveyed sequentially through the bottom of the brake pulley 14, the bridge wheel 18, the gap between the passive wheel 20 and the active wheel 21, the gap between the two sets of first kraft paper guide plates 27, the gap between the raised small ramp 36 and the gap between the two sets of finger pressure plates 35.

[0064] Furthermore, a guide pressure plate mechanism 40 is installed between the two sets of inner nylon lining boards 2 and on the left side of the second kraft paper guide plate 30, such as... Figure 5 and Figure 8 As shown.

[0065] Specifically, the guide plate mechanism 40 includes a tilting frame 41, a pressure plate 42, a positioning pin 43, a rear roller shaft 44, a front roller shaft 45, a rear roller shaft wheel 46, and a front roller shaft wheel 47, as shown below. Figures 8-10 As shown.

[0066] In this embodiment, a pressure plate 42 that interacts with the front facade of the carton is connected downwards to the right end of the flipping frame 41. A positioning pin 43 for inserting kraft paper 8 is installed on the lower part of the pressure plate 42. Inside the flipping frame 41, a rear roller shaft 44 and a front roller shaft 45 are fixed sequentially from right to left. Rear roller shaft wheels 46 are fitted onto both ends of the rear roller shaft 44, and front roller shaft wheels 47 are fitted onto both ends of the front roller shaft 45. Figure 10 As shown.

[0067] The inner sides of both sets of inner nylon lining plates 2 are horizontally provided with inner horizontal tracks 53 for the movement of the rear roller shaft 46 and the front roller shaft 47. The left end of the inner horizontal track 53 is connected to a turning track 54 for the movement of the front roller shaft 47. Both the inner horizontal track 53 and the turning track 54 have a limiting and guiding function. The specific dimensions and curvature of the turning track 54 are designed according to the actual situation to ensure that the tilting frame 41 moves without resistance and without dead angles. Figure 5 and Figure 11 As shown.

[0068] Both sets of inner nylon lining plates 2 have outer tension spring grooves 50 on their outer surfaces that communicate with the inner horizontal track 53. Pressure plate tension springs 51 are movably installed within the outer tension spring grooves 50. The left ends of the two pressure plate tension springs 51 are connected to the ends of the rear roller shaft 44, and the right ends of the two pressure plate tension springs 51 extend outward from the outer tension spring grooves 50 and connect to the tension spring shaft 52. The tension spring shaft 52 is horizontally installed between the two sets of outer iron plates 1. Figure 11 As shown.

[0069] Furthermore, a pressure plate lock 60 is installed between the two sets of inner nylon lining plates 2 and on the left side of the guide pressure plate mechanism 40, such as... Figure 8 and Figure 9 As shown.

[0070] Specifically, the pressure plate lock 60 includes a self-locking bracket 61, a self-locking pressure plate latch 62, a self-locking shaft 63, a bearing 64, a torsion spring 65, a self-locking clamping plate 66, a self-locking wheel 67, a rear wheel lifting arm 68, and a rear wheel lifting arm support shaft 69, as shown. Figure 12 As shown.

[0071] In this embodiment, a self-locking device pressure plate latch 62 is installed at the right end of the self-locking device bracket 61, which interacts with the left end of the flipping frame 41. A self-locking device rotating shaft 63 is installed through the middle of the self-locking device bracket 61. Both ends of the self-locking device rotating shaft 63 are connected to the outer iron plate 1 by bearings 64. The self-locking device rotating shaft 63 drives the self-locking device bracket 61 to rotate around the bearings 64. A torsion spring 65 is installed between the bearings 64 and the outer side of the self-locking device bracket 61. Two sets of self-locking device clamps 66 are connected downward at the left end of the self-locking device bracket 61. A self-locking device wheel 67 that acts on the front and upper surfaces of the carton is installed between the two sets of self-locking device clamps 66.

[0072] In this embodiment, two sets of rear wheel lifting arms 68 are symmetrically fixed to the inner side of the self-locking bracket 61, and the two sets of rear wheel lifting arms 68 are connected and fixed by several sets of rear wheel lifting arm support shafts 69.

[0073] Furthermore, a rear wheel mechanism 70 is installed between the two sets of inner nylon lining plates 2 and on the left side of the pressure plate lock 60, such as... Figure 8 and Figure 9 As shown.

[0074] Specifically, the rear wheel mechanism 70 includes a rear wheel slide plate 71, a rear wheel slide plate support axle 72, a rear wheel lifting axle 73, a rear wheel lifting axle sleeve 74, and a rear wheel 75, as shown below. Figure 13 As shown.

[0075] In this embodiment, there are two sets of symmetrically distributed rear wheel slide plates 71. A rear wheel slide plate support shaft 72 is fixed at the upper position between the two sets of rear wheel slide plates 71. A rear wheel lifting shaft 73 is fixed at the middle position between the two sets of rear wheel slide plates 71. A rear wheel lifting shaft sleeve 74 is rotatably provided on the rear wheel lifting shaft 73. The two sets of rear wheel lifting arms 68 act on the bottom of the rear wheel lifting shaft sleeve 74. A rear wheel 75 is installed at the lower position between the two sets of rear wheel slide plates 71, which acts on the rear vertical surface and the upper surface of the carton.

[0076] Furthermore, the inner sides of both sets of inner nylon plates 2 are inclinedly fixed with rear wheel slide rails 80. The bottom of the rear wheel slide rails 80 is a limiting step. The interior of the rear wheel slide rails 80 is provided with rear wheel slide tracks 81 for the linear movement of the rear wheel slides 71. Two sets of tension spring hooks 82 are symmetrically installed on the lower outer side of each set of rear wheel slides 71. Rear wheel return tension springs 83 are connected to the two sets of tension spring hooks 82 respectively. The rear wheel return tension springs 83 are all in an oblique tension state. The upper end of the rear wheel return tension springs 83 is fixed to the rear wheel slide support shaft 72. Figure 14 As shown.

[0077] Furthermore, two mechanisms, one upper and one lower, can be installed on the machine body simultaneously to seal the upper and lower sides of the carton respectively. Here, only the principle of the upper mechanism will be explained. For the lower mechanism, due to the water tank and the gravity of the brake arm, the design of the lower mechanism is slightly different, but the principle of using pressure plate technology and the application of positioning pins are still the same. In addition, the power parts for the movement of the carton provided by the machine will not be described in detail here.

[0078] Furthermore, clamping conveyors are symmetrically arranged on both sides of the carton, and horizontal cylinders are installed on the outside of the clamping conveyors. The two sets of clamping conveyors use clamping conveyor belts to clamp the carton and transport it from right to left.

[0079] In this embodiment, when the drive motor 26 is not working, the kraft paper 8 is not taut, and the kraft paper 8 under the brake pulley 14 is loose. Under the action of the return spring and its own weight, the brake pulley 14 is at its lowest point, and the brake pad 11 at the lower end of the brake lever 10 contacts the rotating shaft sleeve 6, preventing the kraft paper roll 7 from rotating. This provides a braking effect on the rotating shaft sleeve 6 and the kraft paper roll 7. When the drive motor 26 is working, the driving wheel synchronous pulley 23 rotates, and through the connection between the synchronous belt 25 and the driving wheel synchronous pulley 23, the driving wheel 21 rotates counterclockwise, cooperating with the driven wheel 20 to clamp. The kraft paper 8 is conveyed downwards, at which point the kraft paper 8 is taut. The brake pulley 14 on one side of the bridge wheel 18 is lifted, and the pulley bracket 13 connected to the brake pulley 14 moves accordingly, thereby lifting the brake lever 10. The brake lever pad 11 disengages from the contacting shaft sleeve 6, and no longer acts as a brake on the shaft sleeve 6 and the kraft paper roll 7. The kraft paper 8 can then be pulled out from the kraft paper roll 7. When the drive motor 26 stops, or when the kraft paper 8 is cut, the kraft paper 8 loosens and is no longer taut. The brake lever 10 immediately stops the kraft paper roll 7 to prevent the kraft paper roll 7 from unwinding due to rotational inertia.

[0080] When the machine is started and the kraft paper 8 is cut, the kraft paper 8 is conveyed to the front of the blade assembly and stops. When a carton reaches the front of the sealing machine's core (the carton moves straight to the left after being clamped by the clamping conveyor belt), the first sensor triggers the drive motor 26 to work, conveying the kraft paper 8 through the gap between the two sets of first kraft paper guide plates 27, the raised small ramp 36 and the gap between the two sets of finger pressure plates 35 in sequence, and finally stops when it reaches the bottom of the pressure plate 42. During this process, when the kraft paper first passes the surface of the water-absorbing foam block 32, the water on the water-absorbing foam block 32 is evenly coated onto the kraft paper 8. Then, when the kraft paper 8 enters the gap between the raised small ramp 36 and the two sets of finger pressure plates 35, the cooperation of the raised small ramp 36 and the finger pressure plate 35 at its end makes the middle of the kraft paper 8 that passes through this point supported, and the two sides are pressed on the second kraft paper guide plate 30, so that the kraft paper 8 at this point forms an arc shape that is easy to press, so as to prevent the front of the kraft paper 8 from rolling up or collapsing.

[0081] The carton group continues to move forward to the left. When the front face of the carton moves and contacts the pressure plate 42, the pressure plate 42 presses the kraft paper 8 firmly against the front face of the carton (regardless of whether the water-based adhesive on the kraft paper 8 has solidified). At the same time, the positioning pin 43 on the pressure plate 42 pierces the kraft paper 8, firmly nailing the kraft paper 8 to the front face of the carton, effectively positioning the kraft paper 8. At this time, as the carton pushes the entire guide pressure plate mechanism 40 to move linearly to the left, when the rear face of the carton passes the second sensor, the electromagnet is triggered, causing the moving blade 28 to move together. The blade edge of the moving blade 28 cuts down with the blade edge of the fixed blade 29, cutting the kraft paper 8, causing the kraft paper 8 to stop on the blade, waiting for the next carton to arrive for the cyclic cutting operation. Meanwhile, the kraft paper 8 under the blade group is dragged by the carton to the top of the carton.

[0082] During the movement, the upper pressure plate 42 of the guide pressure plate mechanism 40 always presses firmly against the kraft paper 8, moving with the carton without any slippage or displacement, allowing the glue sufficient time to solidify. At this time, the front roller 47 and the rear roller 46 move on the inner horizontal track 53 until the front roller 47 enters the turning track 54. The guide pressure plate mechanism 40 then begins to tilt up. The rear roller 44, along with the rear roller 46, continues to move on the inner horizontal track 53. When the front roller 45, along with the front roller 47, reaches the end of the turning track 54, and the rear roller 46 reaches the end of the inner horizontal track 53, the guide pressure plate mechanism 40 tilts up completely (no longer blocking the front of the carton), allowing the carton to pass under the guide pressure plate mechanism 40.

[0083] Next, the front panel of the carton pushes the self-locking wheel 67 to rotate, generating a squeezing force between them. This allows the self-locking wheel 67 to smooth the kraft paper 8 on the front panel of the carton a second time. At the same time, the self-locking shaft 63 on the self-locking bracket 61 rotates (torsion spring 65 is twisted). The self-locking wheel 67 is lifted upwards until it flips to the upper surface of the carton and stops at that height. As the carton continues to move, it moves relative to the upper surface of the carton. The self-locking wheel 67 presses and smooths the kraft paper 8 on the upper surface of the carton. At this height, the self-locking pressure plate latch 62 presses against the end of the flipping frame 41 of the raised guide pressure plate mechanism 40, locking the entire guide pressure plate mechanism 40. At this time, the positioning pin 43 on the guide pressure plate mechanism 40 is tilted inwards to prevent the positioning pin 43 from deviating downwards and contacting the upper surface of the carton, thus preventing it from tearing the kraft paper 8.

[0084] As the self-locking wheel 67 is lifted upwards, the two sets of rear wheel lifting arms 68 move upwards, acting on the bottom of the rear wheel axle sleeve 74, pushing the entire rear wheel mechanism 70 to tilt upwards along the rear wheel slide rail 80 (the two sets of rear wheel slides 71 are respectively limited within the rear wheel slide rail 81, and the four sets of rear wheel return springs 83 are stretched). The height of the lifted rear wheel 75 is slightly higher than the cardboard box, until the cardboard box leaves the self-locking wheel 67, the rear wheel 75, having lost its pushing force, is unlocked and directly presses down. When the carton reaches the left side of the top surface, as the carton continues to move to the left, the rear wheel 75 presses and smooths the kraft paper 8 on the top surface of the carton a second time. After the rear wheel 75 separates from the carton, under the elastic force of the four sets of rear wheel return springs 83 and the gravity of the rear wheel mechanism 70 itself, the rear wheel 75 tilts and moves downward, turning from the top surface of the carton to the rear side and continuing to roll along the rear side of the carton, pressing and smoothing the kraft paper 8 on the rear side of the carton, so that the entire sheet of kraft paper 8 is completely attached to the carton.

[0085] When the carton leaves the self-locking wheel 67, under the action of the reset torque of the torsion spring 65 and the gravity of the unbalanced state of the pressure plate lock 60, the self-locking wheel 67 moves downward back to its original position, and the rear wheel lifting arm 68 moves downward accordingly. This not only releases the self-locking of the rear wheel 75, but also separates the self-locking pressure plate latch 62 from the flipping frame 41, and releases the self-locking of the guide pressure plate mechanism 40. Under the action of the reset elastic force of the two sets of pressure plate tension springs 51, the guide pressure plate mechanism 40 moves to the right and returns to its original position. This cycle repeats.

[0086] Example 2: Based on Example 1, after the carton and the self-locking wheel 67 separate, the guide pressure plate mechanism 40 quickly returns to its original position under the restoring force of the two sets of pressure plate tension springs 51. During this process, the impact will cause strong vibration and noise, and damage to the guide pressure plate mechanism 40 and the inner horizontal track 53. To solve the above technical problems, we have the following design, such as... Figures 15-20 As shown.

[0087] Specifically, a second guide plate bracket 90 is fixedly installed between the two sets of inner nylon lining plates 2 and below the first kraft paper guide plate 27. The second guide plate bracket 90 allows the kraft paper 8 to pass through longitudinally (a rectangular hole is opened in the middle of the second guide plate bracket 90). The second kraft paper guide plate 30 is fixed to the bottom of the second guide plate bracket 90. A damper bracket 91 is fixed to the bottom of the second guide plate bracket 90 and to its left. A damper 100 is movably installed downward inside the damper bracket 91. Figures 15-17 As shown.

[0088] The damper 100 has a rotating circular tube 101 fixed to its top, and a damper shaft 94 is installed at the bottom of the damper support 91, passing through the rotating circular tube 101. The rotating circular tube 101 rotates around the damper shaft 94. Figure 18 As shown.

[0089] The damper 100 has an inlet guide frame 102 connected to its left end. A bolt hole 93 is located on the left side of the upper surface of the damper bracket 91, and an adjusting bolt 92 acting on the upper end of the inlet guide frame 102 is installed in the bolt hole 93. Friction plates 103 acting on the upper surface of the tilting frame 41 are provided at the bottom of both the damper 100 and the inlet guide frame 102. The friction plates 103 are made of low-noise buffer material. The right end of the damper 100 includes a limiting part, which serves as a limiting and blocking function. Figures 15-18 As shown.

[0090] Specifically, the initial position of the damper 100 is adjusted by turning the adjusting bolt 92, so that the left end of the damper 100 is slightly higher than the upper part of the guide plate mechanism 40, and the right end of the damper 100 is lower than the upper part of the guide plate mechanism 40, so that the guide plate mechanism 40 can enter the inlet of the damper 100. Figure 15 and Figure 16 As shown.

[0091] Furthermore, the damper bracket 91 and the damper 100 are connected by a damping spring 110, such as... Figure 16 As shown.

[0092] Specifically, the damping spring device 110 includes a spring connecting post 111, an upper pin 112, a lower pin 113, and a damping spring 114, such as... Figure 18 As shown.

[0093] In this embodiment, the spring connecting post 111 is fixed at the bottom center of the damper bracket 91. The lower end of the spring connecting post 111 is connected to the upper pin 112. The upper end face of the damper 100 is fixed at the center of the upper end face. The lower end of the spring connecting post 111 is connected to a damping spring 114 that is sleeved on the outside of the upper pin 112 and the lower pin 113. (By using a damping spring 114 with a suitable elastic coefficient, the strength of the damping spring device 110 can be adjusted to achieve the ideal effect of shock absorption and noise reduction.)

[0094] Furthermore, a spring-loaded pin 120 is horizontally installed on the right end face of the flipping frame 41. A telescopic opening 122 is vertically opened through the middle of the second kraft paper guide plate 30. A telescopic protrusion 121 is movably installed inside the telescopic opening 122. In its natural state, the telescopic protrusion 121 is vertically located on the left end face of the second kraft paper guide plate 30. A small protruding ramp 36 is fixed to the right end of the telescopic protrusion 121 (the small protruding ramp 36 here is a curved surface of uniform width). Figure 15 , Figure 19 and Figure 20 As shown.

[0095] Among them, two sets of protruding brackets 123 are symmetrically arranged on the left end face of the second kraft paper guide plate 30, and two sets of protruding shafts 124 are symmetrically installed on both sides of the upper position of the telescopic protruding seat 121. The ends of the protruding shafts 124 are rotatably connected to the protruding brackets 123, and a small torsion spring sleeved on the outside of the protruding shaft 124 is fixed between the protruding brackets 123 and the telescopic protruding seat 121. Figure 15 and Figure 19 As shown.

[0096] Among them, symmetrically installed on both sides of the lower position of the telescopic protrusion 121 are limiting pins 125 that act on the left end face of the telescopic opening 122. The limiting pins 125 restrict the range of motion of the telescopic protrusion 121. The elastic pin 120, by pressing the middle position of the telescopic protrusion 121, causes the small protruding slope 36 to extend out of the telescopic opening 122 and interact with the kraft paper 8. Figure 15 and Figure 19 As shown.

[0097] In this embodiment, during the return process of the guide plate mechanism 40, the guide plate mechanism 40 is guided by the inlet guide frame 102 to smoothly enter the bottom of the damper 100 and contact the middle position of the bottom of the damper 100. At this time, the damper 100 presses obliquely on the guide plate mechanism 40, generating resistance to the guide plate mechanism 40, and continuously causing the damping spring 114 on the damping spring device 110 to be compressed. The damper 100 rotates around the damper shaft 94 and is lifted upward to allow the flipping frame 41 to continue moving to the right. Under the reverse elastic force of the damping spring 114, the damper 100 can apply the required pressure to the guide plate mechanism 40. Combined with the friction action of the friction plate 103, the guide plate mechanism 40 immediately decelerates and returns to its original position at a low speed, alleviating impact vibration and noise, and stopping its movement at the limiting position of the damper 100.

[0098] It should be noted that although the guide plate mechanism 40 also hits the damper 100 during its movement to the bottom middle position of the damper 100, it does not produce much vibration or noise. This is because the direction of movement of the guide plate mechanism 40 is at a very small angle to the plane of the damper 100. In addition, the damper 100 has friction plates 103 and damping springs 110 pressing it down, which can provide sufficient resistance to slow down the guide plate mechanism 40 and eventually stop it easily.

[0099] Furthermore, the raised ramp 36 in Embodiment 1 is to solve the technical problem of the kraft paper 8 being able to stand upright in the air without collapsing, which is especially important for the lower mechanism. At this time, when the unstretched kraft paper 8 passes through the raised ramp 36 of the second kraft paper guide plate 30, it can form an arc to meet the requirements of paper straightening. However, when the kraft paper 8 pulled from the kraft paper roll 7 also passes through the raised ramp 36 of the second kraft paper guide plate 30, the kraft paper is taut. Moreover, after passing through the raised ramp 36, it immediately turns to the left along the end of the second kraft paper guide plate 30. At this time, the raised ramp 36 acts as an obstacle to the kraft paper 8 and may even break the kraft paper, affecting the subsequent sealing of the box.

[0100] In this embodiment, when the guide pressure plate mechanism 40 is in its initial position, the elastic pin 120 on the flipping frame 41 is positioned at the middle of the telescopic protrusion 121. The telescopic protrusion 121 moves outward around the two sets of protrusion supports 123 (the small torsion spring is twisted), causing the small protrusion ramp 36 to extend out of the telescopic opening 122 of the second kraft paper guide plate 30. When the carton reaches the first sensor, the drive motor 26 drives the kraft paper 8 to be conveyed downward. The kraft paper 8 is sent to the position of the small protrusion ramp 36 of the second kraft paper guide plate 30, forming an arc shape with the finger pressure plate 35. When it is pushed to the lower edge of the pressure plate 42, the drive stops, and the carton is left to arrive.

[0101] When the carton reaches the pressure plate 42, the carton will push the pressure plate 42, i.e. the guide pressure plate mechanism 40, away from its original position. The initial position of the guide pressure plate mechanism 40 is just behind the second kraft paper guide plate 30. When the guide pressure plate mechanism 40 is pushed by the carton and pulls the kraft paper 8 together, the telescopic protrusion 121 disengages from the elastic pin 120. Under the reset torque of the small torsion spring, the telescopic protrusion 121 returns to its original position by rotation, and the small protrusion ramp 36 retracts into the telescopic opening 122 of the second kraft paper guide plate 30, without contacting the kraft paper. The small protrusion ramp 36 designed in this way satisfies the requirement that the kraft paper 8 is arc-shaped and solves the technical problem of obstruction during pulling.

[0102] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0103] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An intelligent wet-water kraft paper sealing machine, comprising an outer iron plate (1) and an inner nylon lining plate (2), characterized in that: The inner nylon lining (2) consists of two symmetrically distributed sets. Each set of the inner nylon lining (2) has an outer iron plate (1) attached to its outer side. One set of the outer iron plate (1) has a kraft paper roll support (4) fixed on it. The kraft paper roll support (4) has an inner fixed shaft arranged horizontally outward on it. The kraft paper roll rotating shaft (5) is rotatably arranged outside the inner fixed shaft. A rotating shaft sleeve (6) is sleeved on the kraft paper roll rotating shaft (5). A kraft paper roll (7) is installed on the rotating shaft sleeve (6). The kraft paper roll (7) has... The kraft paper (8) is rolled outwards; a bridge wheel bracket (16) is fixed on the outer iron plate (1) and on the horizontal side of the kraft paper roll bracket (4), and a bridge wheel shaft (17) is horizontally rotatably arranged on the bridge wheel bracket (16), and one end of the bridge wheel shaft (17) is connected to a bridge wheel (18); a passive wheel (20) and a driving wheel (21) are symmetrically arranged between the two sets of inner nylon plates (2) and below the bridge wheel (18), and between the two sets of inner nylon plates (2) and below the passive wheel (20) A first kraft paper guide plate (27) is symmetrically fixed below the drive wheel (20) and the drive wheel (21). A second kraft paper guide plate (30) is connected to the lower part of the first kraft paper guide plate (27) on the left. A constant temperature hot water tank (31) is fixed between the two sets of inner lining nylon plates (2) and opposite the second kraft paper guide plate (30). A water-absorbing foam block (32) acting on the front of the kraft paper (8) is set at the upper left position of the constant temperature hot water tank (31). The constant temperature hot water tank (31) and the second kraft paper guide plate (21) are connected to the drive wheel (21) and the drive wheel (21). A finger pressure plate bracket (34) connected to the inner nylon plate (2) is provided between the kraft paper guide plates (30). Two sets of finger pressure plates (35) acting on the front edge of the kraft paper (8) are symmetrically installed on the finger pressure plate bracket (34). A small protruding ramp (36) acting on the middle of the back of the kraft paper (8) is installed in the middle position of the second kraft paper guide plate (30). A guide pressure plate mechanism (40) is installed between the two sets of inner nylon plates (2) and on the left side of the second kraft paper guide plate (30). The guide pressure plate mechanism (40) includes a flipping frame (41), a pressure plate (42), a positioning pin (43), a rear roller shaft (44), a front roller shaft (45), a rear roller shaft wheel (46), and a front roller shaft wheel (47). The right end of the flipping frame (41) is connected downward to a pressure plate (42) that interacts with the front facade of the carton. A positioning pin (43) for inserting kraft paper (8) is installed on the lower part of the pressure plate (42). The rear roller shaft (44) and the front roller shaft (45) are fixed inside the flipping frame (41) from right to left. Both ends of the rear roller shaft (44) are fitted with rear roller shaft wheels (46), and both ends of the front roller shaft (45) are fitted with front roller shaft wheels (47). Both sets of inner nylon plates (2) have horizontal inner horizontal tracks (53) for the movement of the rear roller shaft (46) and the front roller shaft (47) on their inner sides. The left end of the inner horizontal track (53) is connected to a curved track (54) for the movement of the front roller shaft (47). Both sets of inner nylon plates (2) have outer tension spring grooves (50) connected to the inner horizontal tracks (53) on their outer sides. Pressure plate tension springs (51) are movably arranged in the outer tension spring grooves (50). The left ends of the two sets of pressure plate tension springs (51) are respectively connected to the end of the rear roller shaft (44). The right ends of the two sets of pressure plate tension springs (51) extend outward from the outer tension spring grooves (50) and are connected to the tension spring shaft (52). A pressure plate locker (60) is installed between the two sets of inner nylon plates (2) and on the left side of the guide pressure plate mechanism (40). The pressure plate locker (60) includes a self-locking bracket (61). A self-locking pressure plate latch (62) that interacts with the left end of the flipping frame (41) is installed at the right end of the self-locking bracket (61). A self-locking rotating shaft (63) is installed through the middle of the self-locking bracket (61). Both ends of the self-locking rotating shaft (63) are equipped with... The bearing (64) and the outer iron plate (1) are connected. A torsion spring (65) is installed between the bearing (64) and the outer side of the self-locking bracket (61). Two sets of self-locking clamps (66) are connected downward at the left end of the self-locking bracket (61). A self-locking wheel (67) acting on the front and upper surfaces of the carton is installed between the two sets of self-locking clamps (66). Two sets of rear wheel lifting arms (68) are symmetrically fixed to the inner side of the self-locking bracket (61).

2. The intelligent wet kraft paper sealing machine according to claim 1, characterized in that: A brake rod (10) is movably disposed above the rotating shaft sleeve (6). A brake rod pad (11) acting on the rotating shaft sleeve (6) is fixed at the bottom of the brake rod (10). A brake rod shaft (12) for the brake rod (10) to rotate is also welded on the kraft paper roll bracket (4). The end of the brake rod (10) away from the brake rod shaft (12) includes a movable pulley bracket (13). A brake movable pulley shaft (15) is fixed at the lower end of the movable pulley bracket (13). A brake movable pulley (14) is sleeved on the brake movable pulley shaft (15).

3. The intelligent wet kraft paper sealing machine according to claim 2, characterized in that: Both the passive wheel (20) and the active wheel (21) are fixed with axles (22). An active wheel synchronous wheel (23) is sleeved on the axle (22) of the active wheel (21). A motor synchronous wheel (24) is provided on one side of the active wheel synchronous wheel (23). The active wheel synchronous wheel (23) and the motor synchronous wheel (24) are connected and driven by a synchronous belt (25). The motor synchronous wheel (24) is sleeved on the output shaft of the drive motor (26). A movable blade (28) is movably disposed below the first kraft paper guide plate (27) on the right, and a fixed blade (29) is fixedly disposed at the lower end of the first kraft paper guide plate (27) on the left. The extension piece of the movable blade (28) is closely attached to one side of the fixed blade (29), so that the blades of the two blades are closely attached when cutting the kraft paper (8).

4. The intelligent wet kraft paper sealing machine according to claim 3, characterized in that: The kraft paper roll (7) is conveyed sequentially through the bottom of the brake pulley (14), the bridge wheel (18), the gap between the passive wheel (20) and the active wheel (21), the gap between the two sets of first kraft paper guide plates (27), the gap between the raised small ramp (36) and the gap between the two sets of finger pressure plates (35).

5. The intelligent wet kraft paper sealing machine according to claim 1, characterized in that: A rear wheel mechanism (70) is installed between the two sets of inner nylon boards (2) and on the left side of the pressure plate locker (60). The rear wheel mechanism (70) includes a rear wheel slide plate (71), a rear wheel slide plate support shaft (72), a lifting rear wheel shaft (73), a lifting rear wheel axle sleeve (74), and a rear wheel (75). The rear wheel slide plates (71) are symmetrically distributed in two sets. The rear wheel slide plate support shaft (72) is fixed at the upper position between the two sets of rear wheel slide plates (71). The lifting rear wheel shaft (73) is fixed at the middle position between the two sets of rear wheel slide plates (71). The lifting rear wheel axle sleeve (74) is rotatably provided on the lifting rear wheel shaft (73). The two sets of rear wheel lifting arms (68) act on the bottom of the lifting rear wheel axle sleeve (74). The rear wheel (75) acting on the rear vertical and upper surfaces of the carton is installed at the lower position between the two sets of rear wheel slide plates (71). The inner sides of both sets of inner nylon plates (2) are inclinedly fixed with rear wheel slide rails (80). The rear wheel slide rails (80) are provided with rear wheel slide tracks (81) for the linear movement of the rear wheel slides (71). Two sets of tension spring hooks (82) are symmetrically installed on the lower outer side of each set of rear wheel slides (71). Rear wheel return springs (83) are connected to the two sets of tension spring hooks (82). The upper end of the rear wheel return springs (83) is fixed on the rear wheel slide support shaft (72).

6. The intelligent wet kraft paper sealing machine according to claim 3, characterized in that: A second guide plate bracket (90) is fixedly installed between the two sets of inner nylon plates (2) and below the first kraft paper guide plate (27). The second kraft paper guide plate (30) is fixed to the bottom of the second guide plate bracket (90). A damper bracket (91) is fixed to the bottom of the second guide plate bracket (90) and to the left side of the second guide plate bracket (90). A damper (100) is installed inside the damper bracket (91) and moves downward.

7. The intelligent wet kraft paper sealing machine according to claim 6, characterized in that: The top of the damper (100) is fixed with a rotating tube (101), and the bottom of the damper bracket (91) is provided with a damper shaft (94) through the rotating tube (101). The rotating tube (101) rotates around the damper shaft (94). The left end of the damper (100) is connected to an inlet guide frame (102). A bolt hole (93) is provided on the left side of the upper end face of the damper bracket (91). An adjusting bolt (92) acting on the upper end of the inlet guide frame (102) is installed in the bolt hole (93). Friction plates (103) acting on the upper end face of the flipping frame (41) are provided at the bottom of both the damper (100) and the inlet guide frame (102). The damper bracket (91) and the damper (100) are connected by a damping spring (110). The damping spring (110) includes a spring connecting post (111), an upper pin (112), a lower pin (113), and a damping spring (114). The spring connecting post (111) is fixed at the bottom center of the damper bracket (91). The lower end of the spring connecting post (111) is connected to the upper pin (112). The lower pin (113) is fixed at the center of the upper end face of the damper (100). The lower end of the spring connecting post (111) is connected to a damping spring (114) that is sleeved on the outside of the upper pin (112) and the lower pin (113).

8. The intelligent wet-water kraft paper sealing machine according to claim 7, characterized in that: An elastic pin (120) is horizontally installed on the right end face of the flipping frame (41). A telescopic opening (122) is provided through the middle position of the second kraft paper guide plate (30). A telescopic protrusion (121) is movably arranged in the telescopic opening (122). The small protruding ramp (36) is fixed to the right end of the telescopic protrusion (121).

9. The intelligent wet kraft paper sealing machine according to claim 8, characterized in that: Two sets of protruding brackets (123) are symmetrically arranged on the left end face of the second kraft paper guide plate (30). Two sets of protruding shafts (124) are symmetrically installed on both sides of the upper position of the telescopic protruding seat (121). The end of the protruding shaft (124) is rotatably connected to the protruding bracket (123). A small torsion spring sleeved on the outside of the protruding shaft (124) is fixed between the protruding bracket (123) and the telescopic protruding seat (121). Limiting pins (125) acting on the left end face of the telescopic opening (122) are symmetrically installed on both sides of the lower position of the telescopic protruding seat (121). The elastic pin (120) presses the telescopic protruding seat (121) at the middle position, so that the protruding small ramp (36) extends out of the telescopic opening (122) and interacts with the kraft paper (8).

Images