Intelligent valve bag paper bag machine

Abstract

The invention relates to the technical field of paper bag machines, in particular to an intelligent valve bag paper bag machine which comprises a supporting frame, a mounting frame arranged on the side face of the supporting frame, a conveying belt arranged on the top face of the mounting frame and a glue brushing assembly arranged on the mounting frame and located on the upper portion of the conveying belt. The glue brushing assembly comprises four connecting blocks which are slidably connected to the four corners of the top face of the mounting frame through sliding grooves, a connecting rod is arranged between every two connecting blocks, and the connecting rods are rotationally connected with the connecting blocks. In the using process, through mutual cooperation of the heating assembly and the glue brushing assembly, the glue flowing and coating process is stable and efficient, and the glue brushing efficiency is improved. And the gluing effect on the valve bag is ensured.

Description

Technical Field

[0001] This invention relates to the field of paper bag making technology, and specifically to an intelligent valve bag paper bag making machine. Background Technology

[0002] Valve bags are typically made of various materials such as plastic and kraft paper, and are mainly used for packaging bulk materials. When sealing the bottoms of valve bags made of materials other than plastic, adhesive bonding is usually used. Traditional valve bag sealing machines use a smoothing frame to apply adhesive, ensuring that the adhesive is evenly distributed on the surface of the valve bag, thereby increasing the bonding area between the adhesive and the bag body and improving the sealing strength. However, although this smoothing frame plays a role in leveling the adhesive during the application process, it does not have a heating function and cannot effectively improve the flowability of the adhesive. This results in poor adhesive flowability during the application process, increasing the sealing time.

[0003] Furthermore, with prolonged operation of the equipment, adhesive may solidify on the contact surface between the smoothing rack and the adhesive, especially when using high-viscosity adhesives. As the smoothing rack slides, this solidified adhesive may be scraped up and adhere to the valve bag surface, resulting in uneven adhesive distribution. This affects the sealing effect and may even lead to a weak seal. This phenomenon not only impacts production efficiency but may also reduce product packaging quality and increase additional operating and maintenance costs. Summary of the Invention

[0004] To address the aforementioned shortcomings of existing technologies, this invention provides an intelligent valve bag paper bag machine that effectively solves the problem of low scraper efficiency in existing paper bag machines.

[0005] To achieve the above objectives, the present invention provides the following technical solution: This invention provides an intelligent valve bag paper bag machine, including a support frame, a mounting frame disposed on the side of the support frame, a conveyor belt disposed on the top surface of the mounting frame, and a glue application assembly disposed on the mounting frame above the conveyor belt. A heating assembly is provided on the side of the mounting frame. The glue application assembly includes four connecting blocks slidably connected to the four corners of the top surface of the mounting frame via sliding grooves. A connecting rod is provided between two connecting blocks, and the connecting rod is rotatably connected to the connecting block. A scraper is connected to the annular outer surface of the connecting rod. One inner side of the connecting rod is connected to the mounting box via a glue-feeding corrugated pipe. A driving assembly for driving the scraper is provided on the outer side of the mounting frame away from the mounting box. The bottom of the scraper is provided with uniformly distributed elastic through holes, and each elastic through hole is provided with an elastic valve made of elastic material. The heating component includes a mounting box located on the side of the mounting bracket away from the drive component. A first elastic airbag is connected to the inner top surface of the mounting box, and a compression plate is connected to the inner bottom surface of the mounting box via a spring. A heating groove is formed on the inner wall of the mounting box near the outer side of the first elastic airbag. A U-shaped tube is connected through the inner side of the heating groove. The other end of the U-shaped tube extends to a position near the bottom of the inner side of the mounting box and is connected through it. An auxiliary component is provided at the connection between the U-shaped tube and the bottom of the inner side of the mounting box. An auxiliary component is connected through the outer side of the U-shaped tube.

[0006] Furthermore, the auxiliary component includes a mounting groove at the connection between the U-shaped tube and the bottom of the inner side of the mounting box. A sliding block is elastically connected to the inner top surface of the mounting groove. The sliding block and the U-shaped tube are slidably connected through the sliding block. A connecting hole is provided through the side of the sliding block. A second elastic airbag is connected to the inner top surface of the mounting groove. The second elastic airbag and the sliding block are in abutting connection.

[0007] Furthermore, a heat-conducting plate is fixedly connected to the inner bottom surface of the heating tank and the side surface near the first elastic airbag, and the bottom of the heat-conducting plate is in contact with the second elastic airbag.

[0008] Furthermore, the diameter of the connecting hole is the same as the diameter of the corresponding section of the U-shaped tube, and the difference between the center distance of the connecting hole and the corresponding section of the U-shaped tube and the diameter of the connecting hole is three to four centimeters.

[0009] Furthermore, an annular sleeve is fitted onto the outer annular surface of the connecting rod, and an annular groove is formed inside the annular sleeve. One end face of the annular groove is connected to the heating tank through a second gas supply pipe.

[0010] Furthermore, the annular outer surface of the annular groove is provided with evenly distributed air outlet grooves near the mounting bracket.

[0011] Furthermore, the drive assembly includes a mounting plate disposed on the side of the mounting bracket away from the mounting box. Two sets of pressing blocks are symmetrically slidably connected to the side of the mounting plate near the mounting box via a sliding groove. The pressing blocks are fixedly connected to the opposite end faces of the two sets of drive assemblies. The sides of the pressing blocks are slidably connected to moving blocks via sliding grooves. The sides of the moving blocks are rotatably connected to secondary connecting plates via pins. The sides of the secondary connecting plates are rotatably connected to main connecting plates via pins. The end of the main connecting plate is sleeved on the connecting rod, and the main connecting plate and the connecting rod are engaged and fixedly connected.

[0012] Furthermore, the drive assembly also includes a mounting block disposed in the middle of the side of the drive assembly near the connecting rod. Electromagnets are provided on both sides of the mounting block. The end face of the pressing block near the electromagnet is made of magnetic material, and the electromagnets and the surfaces of the pressing blocks that are close to each other have the same magnetism.

[0013] Furthermore, a baffle is provided on the annular outer side of the connecting rod near the scraper, and a limiting plate is provided on the end face of the connecting block near the baffle. An elastic pad is connected to the end face of the limiting plate near the baffle.

[0014] The technical solution provided in this application has the following advantages compared with the known prior art: 1. During use, when the scraper and valve bag complete their contact, the moving block is at the bottom of the groove on the extrusion block. At this time, the moving block and the extrusion block no longer provide stroke for the rotation of the main connecting plate. As the extrusion block moves, the extrusion block drives the connecting block and connecting rod to move horizontally through the moving block, the secondary connecting plate, and the mounting plate. When the connecting rod shifts, it drives the scraper to shift. During the movement of the scraper, the surface of the valve bag is coated with adhesive, thus making the adhesive flow and coating process smooth and efficient, ensuring the coating effect on the valve bag.

[0015] 2. During use, when the length of the valve bag changes, the glue application distance can be quickly adjusted, thereby further improving the convenience and range of glue application. Similarly, when it is necessary to apply glue to different distances on both sides of the valve bag, the current flowing into the two sets of electromagnets can be changed for control, further improving the overall performance of the equipment during operation. 3. During use, this application can clean the dust from the area of ​​the valve bag to be coated with adhesive, ensuring the adhesion of the adhesive in subsequent processes. Simultaneously, it heats the creases before folding to prevent damage to the valve bag due to its hard material. Furthermore, as the connecting rod rotates, the airflow changes, further improving the cleaning effect on the valve bag surface. Additionally, by controlling the angle between the air outlet and the scraper, it ensures that the gas discharged from the air outlet flows upwards when the scraper applies adhesive, preventing the discharged gas from affecting the flow of the adhesive. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a complete structural schematic diagram of the present invention; Figure 2 This is a schematic diagram of the adhesive application component of the present invention; Figure 3This is a schematic diagram of the structure of the heating component of the present invention; Figure 4 For the present invention Figure 3 Enlarged view of point A in the middle; Figure 5 This is a schematic diagram of the connection between the main connecting plate and the secondary connecting plate of the present invention; Figure 6 This is a schematic diagram of the scraper structure of the present invention; Figure 7 This is a schematic diagram of the front structure of the electromagnet in this invention; Figure 8 This is a schematic diagram of the back structure of the electromagnet in this invention; Figure 9 This is a schematic diagram of the structure of the limiting plate of the present invention.

[0018] The labels in the diagram represent: 1. Support frame; 2. Mounting frame; 3. Conveyor belt; 4. Glue application assembly; 41. Connecting block; 42. Connecting rod; 43. Scraper; 44. Glue dispensing corrugated pipe; 45. Drive assembly; 450. Elastic pad; 451. Mounting plate; 452. Main connecting plate; 453. Secondary connecting plate; 454. Moving block; 455. Extrusion block; 456. Mounting block; 457. Electromagnet; 458. Limiting plate; 459. 46. ​​Baffle; 57. Elastic through hole; 68. Heating component; 79. Mounting box; 80. First elastic airbag; 91. Heating groove; 10. U-shaped tube; 11. First air supply pipe; 12. Auxiliary component; 13. Mounting groove; 14. Sliding block; 15. Connecting hole; 16. Second elastic airbag; 17. Heat-conducting plate; 18. Extrusion plate; 19. Second air supply pipe; 20. Annular sleeve; 21. Annular groove; 22. Air outlet groove. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0020] The present invention will be further described below with reference to embodiments.

[0021] Example: Refer to Figures 1 to 9A smart valve bag paper bag machine includes a support frame 1, a mounting frame 2 disposed on the side of the support frame 1, a conveyor belt 3 disposed on the top surface of the mounting frame 2, and a glue application assembly 4 disposed on the mounting frame 2 above the conveyor belt 3. A heating assembly 5 is provided on the side of the mounting frame 2. The glue application assembly 4 includes four connecting blocks 41 slidably connected to the four corners of the top surface of the mounting frame 2 via sliding grooves. A connecting rod 42 is provided between two connecting blocks 41. The connecting rod 42 is rotatably connected to the connecting block 41. A scraper 43 is connected to the annular outer surface of the connecting rod 42. One inner side of the connecting rod 42 is connected to the mounting box 51 via a glue conveying corrugated pipe 44. A drive assembly 45 for driving the scraper 43 is provided on the outer side of the mounting frame 2 away from the mounting box 51. The bottom of the scraper 43 is provided with evenly distributed elastic through holes 46. Each elastic through hole 46 is provided with an elastic valve, which is made of elastic material. The heating component 5 includes a mounting box 51 disposed on the side of the mounting bracket 2 away from the drive component 45. The inner top surface of the mounting box 51 is connected to a first elastic airbag 52. The inner bottom surface of the mounting box 51 is connected to a compression plate 57 by a spring. A heating groove 53 is provided on the inner wall of the mounting box 51 near the outer side of the first elastic airbag 52. A U-shaped tube 54 is connected through the inner side of the heating groove 53. The other end of the U-shaped tube 54 extends to a position near the bottom of the inner side of the mounting box 51 and is connected through it. An auxiliary component 56 is provided at the connection between the U-shaped tube 54 and the bottom of the inner side of the mounting box 51. A 55 is connected through the outer side of the U-shaped tube 54.

[0022] When the paper tape machine is working, the conveyor belt transports the material to be processed to the processing position on the conveyor belt 3. This is a conventional technique in the prior art and will not be described in detail here. After the above operation is completed, the valve bag is coated with glue. At this time, the hot air equipment starts to work and generates hot air. This is a conventional technique in the prior art and will not be described in detail here. The hot air enters the interior of the first air supply pipe 55, the hot air inside the first air supply pipe 55 enters the interior of the U-shaped pipe 54, and the hot air inside the U-shaped pipe 54 enters the interior of the heating tank 53. The hot air inside the heating tank 53 conducts heat to the glue inside the first elastic airbag 52. Water is heated to ensure the fluidity of the adhesive. It is worth noting that the hot air inside the U-shaped tube 54 also enters the lower half of the mounting box 51. As the amount of hot air entering the lower half of the mounting box 51 increases, the pressure of the gas on the extrusion plate 57 gradually overcomes the elastic force of the elastic connection between it and the mounting box 51, causing it to move upward inside the mounting box 51. During the upward movement of the extrusion plate 57, the extrusion plate 57 extrudes the first elastic airbag 52. The extrusion force causes the adhesive inside the first elastic airbag 52 to enter the interior of the adhesive delivery corrugated tube 44, and then into the interior of the scraper 43, completing the adhesive replenishment work.

[0023] Reference Figures 5 to 8The drive assembly 45 includes a mounting plate 451 disposed on the middle of the side of the mounting bracket 2 away from the mounting box 51. Two sets of pressing blocks 455 are symmetrically slidably connected to the side of the mounting plate 451 near the mounting box 51 via a sliding groove. The pressing blocks 455 are fixedly connected to the opposite end faces of the two sets of drive assemblies 45. The sides of the pressing blocks 455 are slidably connected to the moving blocks 454 via a sliding groove. The side of the moving blocks 454 is rotatably connected to the secondary connecting plate 453 via a pin. The side of the secondary connecting plate 453 is rotatably connected to the main connecting plate 452 via a pin. The end of the main connecting plate 452 is sleeved on the connecting rod 42. The main connecting plate 452 and the connecting rod 42 are engaged and fixedly connected.

[0024] The drive assembly 45 also includes a mounting block 456 disposed in the middle of the side of the drive assembly 45 near the connecting rod 42. Electromagnets 457 are provided on both sides of the mounting block 456. The end face of the pressing block 455 near the electromagnet 457 is made of magnetic material. The electromagnet 457 and the pressing block 455 have the same magnetism.

[0025] Furthermore, after the gas has been introduced for a period of time, ensuring sufficient time for the gas to heat the adhesive, the control system energizes the two sets of electromagnets 457 on the mounting block 456. When the electromagnets 457 are energized, since the magnetic properties of the adjacent surfaces of the electromagnets 457 and the extrusion block 455 are the same, a repulsive force is generated between the electromagnets 457 and the extrusion block 455. Under the action of the repulsive force, the extrusion block 455 overcomes the elastic force of the elastic connection with the mounting plate 451 and moves away from the electromagnets 457. During the movement, the extrusion block 455 drives the moving block 454, the secondary connecting plate 453, and the main connecting plate 452 to move. During the above process, the moving block 454 moves downward inside the groove on the extrusion block 455. The secondary connecting plate 453 extrudes the main connecting plate 452, causing it to deflect around the central axis of the connecting rod 42. As the main connecting plate 452 rotates, it drives the connecting rod 42 to rotate. The connecting rod 42 drives the scraper 43 to rotate towards the valve bag until the scraper 43 and the valve bag come into contact.

[0026] During the process of the scraper 43 squeezing the valve bag, because the bottom of the scraper 43 is provided with evenly distributed elastic through holes 46, and each elastic through hole 46 is provided with an elastic valve, the elastic valve is made of elastic material. When not under pressure, the valve closes the elastic through hole 46; when pressure is applied, the valve is compressed and deviates from the elastic through hole 46, allowing the glue to flow out. This is a conventional technical means in the prior art and will not be described in detail here. Thus, during the process of the scraper 43 squeezing the valve bag, the glue flows through the elastic through holes 46 to the valve bag for glue replenishment. It is worth noting that when the scraper... When the moving block 454 comes into contact with the valve bag, it is at the bottom of the groove on the pressing block 455. At this time, the moving block 454 and the pressing block 455 no longer provide stroke for the rotation of the main connecting plate 452. As the pressing block 455 moves, the pressing block 455 drives the connecting block 41 and the connecting rod 42 to move in translation through the moving block 454, the secondary connecting plate 453, and the mounting plate 451. When the connecting rod 42 moves, it drives the scraper 43 to move. During the movement of the scraper 43, the surface of the valve bag is coated with glue.

[0027] Furthermore, after the glue application is completed, the power supply to the electromagnet 457 is stopped, and the repulsive force between the electromagnet 457 and the extrusion block 455 disappears. Under the elastic force of the elastic deformation between the extrusion block 455 and the mounting plate 451, the extrusion block 455 moves back to its initial position. During its movement, since the moving block 454 and the extrusion block 455 provide stroke for the rotation of the main connecting plate 452, the connecting rod 42 is driven to rotate. The connecting rod 42 drives the scraper 43 to move away from the valve pocket. The scraper 43 and the valve... When the squeezing pressure between the pockets disappears, the elastic through-hole 46 is closed and the glue dispensing operation stops. At the same time, the scraper 43 is separated from the valve pocket, and the glue application operation stops. Furthermore, when the moving block 454 is in the initial position within the groove on the extrusion block 455, the moving block 454 and the extrusion block 455 no longer provide stroke for the rotation of the main connecting plate 452. The extrusion block 455 drives the mounting plate 451 and other components back to their initial working state, ensuring the normal operation of the next glue application operation, thereby making the glue flow and coating process stable and efficient.

[0028] It is worth noting that the magnitude of the repulsive force generated between the electromagnet 457 and the extrusion block 455 can be controlled by controlling the amount of current supplied to the electromagnet 457. This is a conventional technique in the prior art and will not be elaborated here. Furthermore, the offset distance of the scraper 43 can be controlled by controlling the amount of current supplied to the electromagnet 457. Thus, when the length of the valve bag changes, the glue application distance can be quickly adjusted, thereby further improving the convenience and range of glue application. Similarly, when it is necessary to apply glue to different distances on both sides of the valve bag, the amount of current supplied to the two sets of electromagnets 457 can be changed to control the process, further improving the overall performance of the equipment during operation.

[0029] It is worth noting that the extrusion block 455 and the mounting plate 451 are slidably connected by a groove and a slider, and a damping component is provided between the groove and the slider to control the moving speed of the extrusion block 455 and ensure the stability of the above mechanism during operation.

[0030] Reference Figures 3 to 4 The auxiliary component 56 includes a mounting groove 561 at the connection between the U-shaped tube 54 and the bottom of the inner side of the mounting box 51. A sliding block 562 is elastically connected to the inner top surface of the mounting groove 561. The sliding block 562 and the U-shaped tube 54 are slidably connected through the sliding block 562. A connecting hole 563 is provided through the side of the sliding block 562. A second elastic airbag 564 is connected to the inner top surface of the mounting groove 561. The second elastic airbag 564 and the sliding block 562 are in abutting connection.

[0031] Furthermore, by setting the auxiliary component 56, the opening at the connection between the U-shaped tube 54 and the bottom of the mounting box 51 is initially closed. It is worth noting that while the hot air heats the adhesive inside the first elastic airbag 52, it also transfers heat to the inside of the second elastic airbag 564. Since the second elastic airbag 564 contains gases that expand easily when heated, such as carbon dioxide, as the heating process continues, the gas inside the second elastic airbag 564 gradually generates expansion force. Under the action of this expansion force, the second elastic airbag 564 drives the sliding block 562. Inside the mounting groove 561, it moves downward against the elastic force between itself and the mounting groove 561. During the above movement, the connecting holes 563 move towards the U-shaped tube 54 until the connecting holes 563 and the U-shaped tube 54 are in a communication state. Only then will the gas inside the second elastic airbag 564 enter the interior of the mounting box 51 to drive the extrusion plate 57 to move and perform glue filling work. This ensures that the glue is squeezed into the interior of the scraper 43 after the hot air heats the glue for a certain period of time, ensuring the fluidity of the glue during the working process and thus ensuring the working effect of subsequent work.

[0032] Reference Figures 3 to 4A heat-conducting plate 565 is fixedly connected to the inner bottom surface of the heating tank 53 and the side surface near the first elastic airbag 52. The bottom of the heat-conducting plate 565 is in contact with the second elastic airbag 564. The heat transfer effect is increased by setting the heat-conducting plate 565.

[0033] Reference Figures 3 to 4 The connecting hole 563 and the corresponding cross-sectional diameter of the U-shaped tube 54 are the same. The difference between the center distance of the corresponding cross-section of the connecting hole 563 and the U-shaped tube 54 and the diameter of the connecting hole 563 is 3CM to 4CM. This ensures that the connecting hole 563 can move freely and that the hot air can fully heat the glue before the glue is applied, thus ensuring the effectiveness of subsequent work.

[0034] Reference Figures 5 to 6 An annular sleeve 59 is fitted onto the outer annular surface of the connecting rod 42. An annular groove 510 is formed inside the annular sleeve 59. One end face of the annular groove 510 is connected to the heating tank 53 through a second gas supply pipe 58. By setting the annular sleeve 59, the gas entering the heating tank 53 will also enter the annular groove 510 of the annular sleeve 59 through the second gas supply pipe 58, thereby heating the glue inside the connecting rod 42 and scraper 43. This avoids the problem of the glue temperature dropping due to heat exchange with the outside air when it stays inside the connecting rod 42 and scraper 43.

[0035] Reference Figure 5 The annular outer surface of the annular groove 510, near the mounting bracket 2, has evenly distributed air outlet grooves 511. By providing these air outlet grooves 511, hot air entering the annular groove 510 will also be discharged through the air outlet grooves 511. Figure 5 As shown, in the initial state, the gas discharged from the air outlet 511 blows towards the surface of the valve bag, cleaning the dust in the area to be glued on the valve bag surface, ensuring the adhesion of the glue in subsequent work. At the same time, it heats the crease that is about to be folded to prevent damage to the valve bag due to its hard material during folding. Furthermore, as the connecting rod 42 rotates, the flow direction of the gas changes, further improving the cleaning effect on the surface of the valve bag. Meanwhile, by controlling the angle between the air outlet 511 and the scraper 43, it is ensured that when the scraper 43 is applying glue, the gas discharged from the air outlet 511 flows upward, avoiding the problem of the discharged gas affecting the flow direction of the glue during the glue application process.

[0036] Reference Figure 9A baffle 459 is provided on the annular outer side of the connecting rod 42 near the scraper 43. A limiting plate 458 is provided on the end face of the connecting block 41 near the baffle 459. An elastic pad 450 is connected to the end face of the limiting plate 458 near the baffle 459. By setting the limiting plate 458 and the baffle 459, the rotation path of the connecting rod 42 is further controlled, ensuring that the scraper 43 can contact the valve bag more stably and accurately, thereby making the gluing and brushing work more stable. By setting the elastic pad 450, a variable range of movement is provided for the rotation path of the connecting rod 42 and the scraper 43, so that gluing and brushing work can be performed on valve bags of different thicknesses, thereby increasing the variability of the above mechanism.

[0037] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A smart valve bag paper bag machine, comprising a support frame (1), a mounting frame (2) disposed on the side of the support frame (1), and a conveyor belt (3) disposed on the top surface of the mounting frame (2), characterized in that, Also includes: The glue-applying assembly (4) is located on the mounting frame (2) above the conveyor belt (3). The mounting frame (2) is provided with a heating assembly (5) on its side. The glue-applying assembly (4) includes four connecting blocks (41) that are slidably connected to the four corners of the top surface of the mounting frame (2) via a slide groove. A connecting rod (42) is provided between two connecting blocks (41). The connecting rod (42) is rotatably connected to the connecting block (41). A scraper (43) is connected to the annular outer surface of the connecting rod (42). One of the inner sides of the connecting rod (42) is connected to the mounting box (51) via a glue-feeding corrugated pipe (44). A drive assembly (45) for driving the scraper (43) is provided on the outer side of the mounting frame (2) away from the mounting box (51). The bottom of the scraper (43) is provided with uniformly distributed elastic through holes (46). Each elastic through hole (46) is provided with an elastic valve. The elastic valve is made of elastic material. The heating component (5) includes a mounting box (51) disposed on the side of the mounting bracket (2) away from the drive component (45). The inner top surface of the mounting box (51) is connected to a first elastic airbag (52). The inner bottom surface of the mounting box (51) is connected to a compression plate (57) by a spring. A heating groove (53) is provided on the inner wall of the mounting box (51) near the outer side of the first elastic airbag (52). A U-shaped tube (54) is connected through the inner side of the heating groove (53). The other end of the U-shaped tube (54) extends to a position near the bottom of the inner side of the mounting box (51) and is connected through it. An auxiliary component (56) is provided at the connection between the U-shaped tube (54) and the bottom of the inner side of the mounting box (51). A (55) is connected through the outer side of the U-shaped tube (54).

2. A smart valve bag paper bag machine according to claim 1, characterized in that, The auxiliary component (56) includes a mounting groove (561) opened at the connection between the U-shaped tube (54) and the bottom of the inner side of the mounting box (51). A sliding block (562) is elastically connected to the inner top surface of the mounting groove (561). The sliding block (562) and the U-shaped tube (54) are slidably connected through each other. A connecting hole (563) is opened through the side of the sliding block (562). A second elastic airbag (564) is connected to the inner top surface of the mounting groove (561). The second elastic airbag (564) and the sliding block (562) are in abutting connection.

3. A smart valve bag paper bag machine according to claim 2, characterized in that, A heat-conducting plate (565) is fixedly connected to the inner bottom surface of the heating tank (53) and the side surface near the first elastic airbag (52). The bottom of the heat-conducting plate (565) is in contact with the second elastic airbag (564).

4. A smart valve bag paper bag machine according to claim 2, characterized in that, The diameter of the cross section corresponding to the connecting hole (563) and the U-shaped tube (54) is the same. The difference between the center distance of the cross section corresponding to the connecting hole (563) and the U-shaped tube (54) and the diameter of the connecting hole (563) is 3CM to 4CM.

5. A smart valve bag paper bag machine according to claim 1, characterized in that, An annular sleeve (59) is fitted on the outer annular surface of the connecting rod (42). An annular groove (510) is provided inside the annular sleeve (59). One end face of the annular groove (510) is connected to the heating tank (53) through a second gas supply pipe (58).

6. A smart valve bag paper bag machine according to claim 5, characterized in that, The annular groove (510) has evenly distributed air outlet grooves (511) on its annular outer side near the mounting bracket (2).

7. A smart valve bag paper bag machine according to claim 1, characterized in that, The drive assembly (45) includes a mounting plate (451) located in the middle of the side of the mounting bracket (2) away from the mounting box (51). Two sets of extrusion blocks (455) are symmetrically slidably connected to the side of the mounting plate (451) near the mounting box (51) via a sliding groove. Extrusion blocks (455) are fixedly connected to the opposite end faces of the two sets of drive assemblies (45). Movable blocks (454) are slidably connected to the sides of the extrusion blocks (455) via a sliding groove. A secondary connecting plate (453) is rotatably connected to the side of the movable block (454) via a pin. A main connecting plate (452) is rotatably connected to the side of the secondary connecting plate (453) via a pin. The end of the main connecting plate (452) is sleeved on the connecting rod (42). The main connecting plate (452) and the connecting rod (42) are engaged and fixedly connected.

8. A smart valve bag paper bag machine according to claim 7, characterized in that, The drive assembly (45) also includes a mounting block (456) disposed in the middle of the side of the drive assembly (45) near the connecting rod (42). Electromagnets (457) are provided on both sides of the mounting block (456). The end face of the extrusion block (455) near the electromagnet (457) is made of magnetic material. The electromagnet (457) and the extrusion block (455) have the same magnetism.

9. A smart valve bag paper bag machine according to claim 1, characterized in that, A baffle (459) is provided on the annular outer side of the connecting rod (42) near the scraper (43). A limiting plate (458) is provided on the end face of the connecting block (41) near the baffle (459). An elastic pad (450) is connected to the end face of the limiting plate (458) near the baffle (459).

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