A seamless bonding machine

Abstract

This utility model relates to the field of sewing equipment technology, and in particular to a seamless bonding machine, comprising a machine base, a machine housing, a cantilever plate, a table panel, a lifting driver, a lifting seat, a heat insulation plate, a heating block, a hot air blowing mechanism, a transmission shaft, an upper pressure roller, an upper rotation driver, a first rotating shaft, a lower pressure roller, a second rotating shaft, an eccentric rotating block, a crank, a rotating rod, a hinge, a cutter, an encoder, a lower rotation drive mechanism, a tape feeding mechanism, and a material rack. A feeding gap is formed between the upper and lower pressure rollers, and hand operating space is provided between the side of the machine housing, the table panel, and the cantilever plate. This application achieves synchronous driving of the lower pressure roller and the cutter by a single drive source, reducing the number of drive sources used. The encoder controls the rotation speed of the upper and lower pressure rollers to be equal, ensuring the synchronicity of the upper and lower pressure rollers pressing and conveying the upper and lower sides of the fabric. The increased hand operating space enhances the operator's working space, making the operation more comfortable and efficient.

Description

Technical Field

[0001] This utility model relates to the field of sewing equipment technology, and in particular to a seamless bonding machine. Background Technology

[0002] As people's aesthetic standards improve, their demands for the aesthetic appearance of clothing are also increasing. Traditionally, fabric is hemmed or sewn together using needle and thread. This sewing method leaves stitch marks and seams on the surface of the fabric, greatly affecting its appearance.

[0003] Among existing patents, the applicant filed a Chinese patent application on January 19, 2019, with application number 201910056704.3, disclosing a seamless bonding machine. In this patent, the rotation of the lower glue roller and the lower circular blade is driven by a lower blade drive motor, the reciprocating oscillation of the upper blade is driven by an upper blade drive motor, and the rotation of the upper glue roller is driven by an upper wheel drive motor. This increases the number of required drive sources (drive motors), and the narrow space between the machine body and the upper glue roller rotation mechanism makes it difficult for operators to place the fabric in the feeding gap between the upper and lower glue rollers, hindering the operator's ability to improve production efficiency. Therefore, the defects are quite obvious, and a solution is urgently needed. Utility Model Content

[0004] In order to solve the above-mentioned technical problems, the purpose of this utility model is to provide a seamless bonding machine.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A seamless bonding machine includes a machine base, a chassis mounted on the machine base, a cantilever plate mounted on one side of the top of the chassis, a platform mounted on one side of the chassis and above the machine base, a lifting drive mounted on the cantilever plate, a lifting seat mounted on the lifting end of the lifting drive, a heat insulation plate mounted on one side of the lifting seat, a heating block mounted on the heat insulation plate, a heat blowing mechanism mounted on the back of the heating block, a drive shaft rotatably connected to the bottom of the lifting seat, an upper pressure roller fitted on one end of the drive shaft, an upper rotation drive mounted on the other side of the lifting seat for driving the drive shaft to rotate, a first rotating shaft rotating through a side plate of the chassis, a lower pressure roller fitted on one end of the first rotating shaft, a second rotating shaft rotating through a side plate of the chassis, an eccentric rotating block fitted on one end of the second rotating shaft, a crank fitted outside the eccentric rotating block, and a component rotatably connected to the chassis. The machine includes a rotating rod on the side plate, a hinge mounted on the rotating rod and hinged to one end of the crank, a cutter mounted on one end of the rotating rod and tangent to the inner wall of the lower pressure roller, an encoder mounted inside the machine housing and driven by the first rotating shaft, a lower rotation drive mechanism built into the machine housing and used to drive the first and second rotating shafts to rotate, a belt feeding mechanism mounted on the cantilever plate, and a material rack located on the side of the belt feeding mechanism away from the heating block. An eccentric rotating block is rotatably mounted inside the inner hole of the crank. The first rotating shaft, the second rotating shaft, and the rotating rod are arranged in parallel. The encoder is electrically connected to the upper rotation drive. The lower pressure roller is rotatably mounted on the table panel and is arranged opposite to the upper pressure roller. The upper and lower pressure rollers rotate in opposite directions, and a feeding gap is formed between the upper and lower pressure rollers. There is a hand operating space between the side of the machine housing, the table panel, and the cantilever plate. The hand operating space is connected to the feeding gap.

[0007] Furthermore, the lower rotation drive mechanism includes a drive shaft and a driven shaft arranged in parallel and rotatably connected in the chassis, a lower rotation driver installed in the chassis and used to drive the drive shaft to rotate, a speed-increasing transmission belt group connected between the drive shaft and the second rotating shaft, a first speed-reducing transmission belt group connected between the drive shaft and the driven shaft, and a second speed-reducing transmission belt group connected between the driven shaft and the first rotating shaft.

[0008] Furthermore, the bottom end of the heating block is provided with an arc-shaped part surrounding the front side of the upper pressure roller, and an arc-shaped air guide groove is provided in the middle of the arc-shaped part. The air outlet of the hot air blowing mechanism is connected to the air inlet of the arc-shaped air guide groove, and the air outlet of the arc-shaped air guide groove faces the feeding gap.

[0009] Furthermore, the hot air blowing mechanism includes a heating module, an inner sleeve fitted outside the heating module, a middle sleeve fitted outside the inner sleeve, an outer sleeve fitted outside the middle sleeve, and two end plates respectively installed at both ends of the heating module, the inner sleeve, the middle sleeve, and the outer sleeve. An inner air duct is formed between the inner sidewall of the inner sleeve and the outer sidewall of the heating module, a middle air duct is formed between the outer sidewall of the inner sleeve and the inner sidewall of the middle sleeve, and an outer air duct is formed between the outer sidewall of the middle sleeve and the inner sidewall of the outer sleeve. An air outlet is provided on the end plate near the arc-shaped part, which communicates with the inner air duct and the arc-shaped air guide groove. An inner through hole is provided on the side wall of the inner sleeve away from the air outlet, through which the inner air duct communicates with the middle air duct. A middle through hole is provided on the side wall of the middle sleeve away from the inner through hole, through which the middle air duct communicates with the outer air duct. An air inlet is provided on the side wall of the outer sleeve away from the inner through hole, through which the air inlet communicates with the outer air duct.

[0010] Furthermore, the internal air duct is a spiral air duct.

[0011] Furthermore, the outer wall of the heating module is provided with spiral patterns, and a spiral air duct is formed between the inner wall of the spiral patterns and the inner wall of the inner sleeve.

[0012] Furthermore, the heating module includes a heating tube and a heat-conducting sleeve fitted over the heating tube, with spiral patterns on the outer wall of the heat-conducting sleeve, which is installed between two end plates.

[0013] Furthermore, the heating module is a heating tube, with spiral patterns on the outer wall of the heating tube.

[0014] Furthermore, the belt feeding mechanism includes a mounting base mounted on the cantilever plate, multiple guide rollers rotatably connected to the mounting base, a drive roller rotatably connected to the mounting base and located between two adjacent guide rollers, a belt guide mounted on the mounting base and located between the drive roller and the guide roller, a belt feeding rotary driver mounted on the mounting base for driving the drive roller to rotate, a swing frame rotatably connected to the mounting base at one end, a driven roller rotatably connected to the other end of the swing frame and positioned opposite the drive roller, a bent hook located at the end of the swing frame away from the driven roller, and a tension spring connected between the bent hook and the mounting base. The belt guide has a belt guide groove, and the elastic force of the tension spring drives the end of the swing frame connected to the driven roller to swing close to the drive roller. The material rack is mounted on the mounting base. The belt feeding rotary driver is electrically connected to an encoder or an upper rotary driver.

[0015] Furthermore, the air inlet is equipped with an air inlet pipe, and the air outlet is equipped with an air outlet pipe, which extends into the arc-shaped air guide groove.

[0016] The beneficial effects of this utility model are as follows: In practical applications, according to the required feeding gap size, the lifting driver drives the lifting seat, along with the transmission shaft and the upper pressure roller, to lift and lower, thereby adjusting the distance between the upper and lower pressure rollers and thus adjusting the feeding gap size. Hot melt adhesive rolls are installed on the material rack. The hot melt adhesive released from the rolls passes through the feeding mechanism and adheres to the front of the heating block, moving along its front. The heating block heats the hot melt adhesive, improving the heating effect. The hot melt adhesive is adhered to the folded fabric. The fabric with the hot melt adhesive adhered enters the feeding gap, and the hot air blowing mechanism heats the fabric with the hot melt adhesive adhered at the feeding gap. The feeding mechanism drives the hot melt adhesive to move, thus conveying the hot melt adhesive. Simultaneously, the upper rotary driver drives the transmission shaft, along with the upper pressure roller, to rotate, and the lower rotary drive mechanism drives the first and second rotating shafts to rotate. The first rotating shaft drives the lower pressure roller to rotate, while the upper pressure roller rotates in the opposite direction. The rotating first rotating shaft drives the input end of the encoder to rotate, so that the encoder calculates the rotation speed of the first rotating shaft and feeds back a signal to the upward rotating driver. This causes the upward rotating driver to control the rotation speed of the upper pressure roller to be equal to the rotation speed of the first rotating shaft. That is, the rotation speed of the upper pressure roller and the rotation speed of the lower pressure roller are equal. The upper and lower pressure rollers, with the same rotation speed and opposite directions, perform hot-melt adhesive bonding and conveying on the fabric to achieve seamless bonding of the fabric. The second rotating shaft drives the eccentric rotating block to rotate. The rotating eccentric rotating block drives the crank to swing in a cycle. The swinging crank drives the hinge to reciprocate within a preset angle range. The reciprocating hinge drives the rotating rod and the cutter to swing back and forth. The reciprocating cutter tangentially engages with the inner wall of the lower pressure roller to trim the seamlessly bonded fabric. The design incorporates a hand operating space between the feeding gap and the machine housing, providing ample room for the operator's hands to place the fabric within the feeding gap. This invention achieves simultaneous driving of the lower pressure roller and cutter by a single drive source (lower rotation drive mechanism), reducing the number of drive sources required. Encoders control the upper and lower pressure rollers to rotate at equal speeds, ensuring the synchronicity of the upper and lower pressure rollers' pressing and conveying of the fabric on both sides. This improves the quality of seamless fabric bonding. The hand operating space between the feeding gap and the machine housing increases the operator's working space, allowing for greater hand comfort and efficiency. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0018] Figure 2 This is a three-dimensional structural diagram of the concealed machine base, chassis, cantilever plate, and tabletop of this utility model.

[0019] Figure 3This is a three-dimensional structural diagram of the concealed machine base, chassis, cantilever plate, and table panel of this utility model from another perspective.

[0020] Figure 4 This is a three-dimensional structural diagram of the lifting driver, lifting seat, heat insulation plate, heating block, heat blower mechanism, transmission shaft and upper pressure roller of this utility model.

[0021] Figure 5 This is a three-dimensional structural diagram of the lower rotation drive mechanism, first rotating shaft, second rotating shaft, encoder, lower pressure wheel, cutter, eccentric rotating block, crank and rotating rod of this utility model.

[0022] Figure 6 This is a three-dimensional structural diagram of the material rack and conveyor belt mechanism of this utility model.

[0023] Figure 7 This is a cross-sectional view of the heat exchanger mechanism of this utility model.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Machine base; 2. Machine casing; 3. Cantilever plate; 4. Tabletop; 5. Lifting driver; 6. Lifting seat; 7. Heat insulation plate; 8. Heating block; 9. Hot air blowing mechanism; 10. Drive shaft; 11. Upper pressure roller; 12. Upper rotation driver; 13. First rotating shaft; 14. Lower pressure roller; 15. Second rotating shaft; 16. Eccentric rotating block; 17. Crank; 18. Rotating rod; 19. Hinge; 20. Cutter; 21. Encoder; 22. Lower rotation drive mechanism; 23. Belt feeding mechanism; 24. Material rack; 25. Feeding gap; 26. Hand operating space; 27. Drive shaft; 28. Driven shaft; 29. ​​Lower rotation driver; 30. Speed-up transmission belt assembly; 31. 31. First reduction gear belt assembly; 32. Second reduction gear belt assembly; 33. Arc-shaped section; 34. Arc-shaped air guide groove; 35. Heating module; 36. Inner sleeve; 37. Middle sleeve; 38. Outer sleeve; 39. End plate; 40. Inner air duct; 41. Middle air duct; 42. Outer air duct; 43. Air outlet; 44. Inner through hole; 45. Middle through hole; 46. Air inlet; 47. Spiral pattern; 48. Heating element; 49. Heat-conducting sleeve; 50. Mounting base; 51. Guide roller; 52. Drive roller; 53. Belt guide component; 54. Belt guide groove; 55. Belt feed drive; 56. Swing frame; 57. Driven roller; 58. Bending hook; 59. Tension spring; 60. Air inlet pipe; 61. Air outlet pipe. Detailed Implementation

[0026] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments and accompanying drawings. The content mentioned in the embodiments is not intended to limit the present invention.

[0027] like Figures 1 to 7As shown, the present invention provides a seamless bonding machine, which includes a machine base 1, a housing 2 mounted on the machine base 1, a cantilever plate 3 mounted on one side of the top of the housing 2, a table panel 4 mounted on one side of the housing 2 and located above the machine base 1, a lifting drive 5 mounted on the cantilever plate 3, a lifting seat 6 mounted on the lifting end of the lifting drive 5, a heat insulation plate 7 mounted on one side of the lifting seat 6, a heating block 8 mounted on the heat insulation plate 7, a heat blowing mechanism 9 mounted on the back of the heating block 8, and a component rotatably connected to the lifting seat. The following components are included: a drive shaft 10 at the bottom of the lifting seat 6; an upper pressure roller 11 fitted onto one end of the drive shaft 10; an upper rotary drive 12 mounted on the other side of the lifting seat 6 for driving the drive shaft 10 to rotate; a first rotating shaft 13 that rotates through the side plate of the housing 2; a lower pressure roller 14 fitted onto one end of the first rotating shaft 13; a second rotating shaft 15 that rotates through the side plate of the housing 2; an eccentric rotating block 16 fitted onto one end of the second rotating shaft 15; a crank 17 fitted onto the eccentric rotating block 16; and a rotating rod connected to the side plate of the housing 2. 18. A hinge joint mounted on the rotating rod 18 and hinged to one end of the crank 17; 19. A cutter mounted on one end of the rotating rod 18 and tangent to the inner wall of the lower pressure roller 14; 20. An encoder mounted inside the housing 2 and drivenly connected to the first rotating shaft 13; 21. A lower rotation drive mechanism built into the housing 2 and used to drive the first rotating shaft 13 and the second rotating shaft 15 to rotate; 22. A belt feeding mechanism mounted on the cantilever plate 3 and a material rack 24 located on the side of the belt feeding mechanism 23 away from the heating block 8; eccentric rotating block 16 rotates. The first rotating shaft 13, the second rotating shaft 15, and the rotating rod 18 are arranged in parallel within the inner hole of the crank 17. The encoder 21 is electrically connected to the upper rotary driver 12. The lower pressure roller 14 is rotatably mounted on the table panel 4 and is positioned opposite to the upper pressure roller 11. The upper pressure roller 11 and the lower pressure roller 14 rotate in opposite directions. A feeding gap 25 is formed between the upper pressure roller 11 and the lower pressure roller 14. A hand operating space 26 is provided between the side of the machine housing 2, the table panel 4, and the cantilever plate 3. The hand operating space 26 is connected to the feeding gap 25.

[0028] In practical applications, the lifting driver 5 drives the lifting seat 6, along with the transmission shaft 10 and the upper pressure roller 11, to rise and fall according to the required feeding gap 25, thereby adjusting the distance between the upper pressure roller 11 and the lower pressure roller 14, and thus adjusting the size of the feeding gap 25. The hot melt adhesive roll is mounted on the material rack 24. The hot melt adhesive tape released from the roll passes through the feeding mechanism 23 and is then attached to the front of the heating block 8, allowing it to move along the front of the heating block 8. The heating block 8 heats the hot melt adhesive tape, improving the heating efficiency. The effect of the hot melt adhesive tape is that it is adhered to the folded fabric. The fabric with the hot melt adhesive tape is fed into the feeding gap 25. The hot air blowing mechanism 9 heats the fabric with the hot melt adhesive tape at the feeding gap 25. The tape feeding mechanism 23 drives the hot melt adhesive tape to move, thereby conveying the hot melt adhesive tape. At the same time, the upper rotary driver 12 drives the transmission shaft 10 to rotate, which in turn drives the upper pressure roller 11 to rotate. The lower rotary drive mechanism 22 drives the first rotating shaft 13 and the second rotating shaft 15 to rotate. The rotating first rotating shaft 13 drives... The lower pressure roller 14 rotates, while the upper pressure roller 11 rotates in the opposite direction. The rotating first shaft 13 drives the input end of the encoder 21 to rotate, causing the encoder 21 to calculate the rotational speed of the first shaft 13 and send a feedback signal to the upper rotation driver 12. This causes the upper rotation driver 12 to control the rotational speed of the upper pressure roller 11 to be equal to the rotational speed of the first shaft 13, meaning the rotational speed of the upper pressure roller 11 is equal to the rotational speed of the lower pressure roller 14. The upper pressure roller 11 and the lower pressure roller 14, rotating at the same speed but in opposite directions, counteract each other. Fabric with hot melt adhesive tape is hot-rolled and conveyed to achieve seamless bonding. The second rotating shaft 15 drives the eccentric rotating block 16 to rotate, which in turn drives the crank 17 to oscillate cyclically. This oscillating crank 17 drives the hinge 19 to reciprocate within a preset angle range. The reciprocating hinge 19 drives the rotating rod 18, along with the cutter 20, to oscillate reciprocally. The reciprocating cutter 20 engages tangentially with the inner wall of the lower pressure roller 14 to trim the seamlessly bonded fabric. A hand operating space 26 is provided between the feeding gap 25 and the machine housing 2, allowing the operator's hands space to place the fabric within the feeding gap 25. This invention enables a single drive source (lower rotation drive mechanism 22) to synchronously drive the lower pressure roller 14 and the cutter 20 to work, reducing the number of drive sources required. The encoder 21 controls the upper pressure roller 11 and the lower pressure roller 14 to rotate at the same speed, ensuring the synchronicity of the upper and lower pressure rollers 11 and 14 in pressing and conveying the fabric on both sides, thereby improving the quality of seamless bonding of the fabric. By providing a hand operating space 26 between the feeding gap 25 and the machine housing 2, the operating space for the operator is increased, which is conducive to the operator's hand stretching during work, making the operation more comfortable and efficient.

[0029] In this embodiment, the lower rotation drive mechanism 22 includes a drive shaft 27 and a driven shaft 28 arranged in parallel and rotatably connected within the housing 2, a lower rotation driver 29 mounted in the housing 2 for driving the drive shaft 27 to rotate, a speed-increasing transmission belt group 30 connected between the drive shaft 27 and the second rotating shaft 15, a first speed-reducing transmission belt group 31 connected between the drive shaft 27 and the driven shaft 28, and a second speed-reducing transmission belt group 32 connected between the driven shaft 28 and the first rotating shaft 13. Specifically, the lower rotation driver 29 can be a motor. The speed-increasing transmission belt group 30, the first speed-reducing transmission belt group 31, and the second speed-reducing transmission belt group 32 are all composed of a synchronous belt and two synchronous pulleys with different diameters. The speed-increasing transmission belt group 30 uses the larger pulley to drive the smaller pulley to achieve speed increase, while the speed-reducing transmission belt group uses the smaller pulley to drive the larger pulley to achieve speed decrease.

[0030] In practical applications, the lower rotary driver 29 drives the drive shaft 27 to rotate. The rotating drive shaft 27 drives the second rotating shaft 15 to rotate at a higher speed via the speed-increasing transmission belt group 30, thereby increasing the rotational speed of the second rotating shaft 15 and thus increasing the reciprocating oscillating cutting speed of the cutter 20. The rotating drive shaft 27 drives the driven shaft 28 to rotate at a reduced speed via the first speed-reducing transmission belt group 31. The driven shaft 28 rotates at a reduced speed via the second speed-reducing transmission belt group 32, thereby achieving two speed reductions. The first rotating shaft 13 rotates at a reduced speed, driving the lower pressure wheel 14 to rotate and driving the input shaft of the encoder 21 to rotate.

[0031] In this embodiment, the bottom end of the heating block 8 is provided with an arc-shaped portion 33 surrounding the front side of the upper pressure roller 11. An arc-shaped air guide groove 34 is provided in the middle of the arc-shaped portion 33. The air outlet of the hot air blowing mechanism 9 is connected to the air inlet of the arc-shaped air guide groove 34, and the air outlet of the arc-shaped air guide groove 34 faces the feeding gap 25. In practical applications, the hot melt adhesive tape moves along the arc-shaped portion 33 and adheres to the fabric before entering the feeding gap 25. The hot air blown out by the hot air blowing mechanism 9 blows along the arc-shaped air guide groove 34 onto the fabric with the hot melt adhesive tape adhering to it at the feeding gap 25.

[0032] In this embodiment, the heat exchanger mechanism 9 includes a heating module 35, an inner sleeve 36 fitted over the heating module 35, a middle sleeve 37 fitted over the inner sleeve 36, an outer sleeve 38 fitted over the middle sleeve 37, and two end plates 39 respectively installed at both ends of the heating module 35, the inner sleeve 36, the middle sleeve 37, and the outer sleeve 38. An inner air duct 40 is formed between the inner wall of the inner sleeve 36 and the outer wall of the heating module 35, a middle air duct 41 is formed between the outer wall of the inner sleeve 36 and the inner wall of the middle sleeve 37, and an outer air duct is formed between the outer wall of the middle sleeve 37 and the inner wall of the outer sleeve 38. 42. The end plate 39 near the arc-shaped part 33 has an air outlet 43 that communicates with the inner air duct 40. The air outlet 43 communicates with the arc-shaped air guide groove 34. The inner sleeve 36 has an inner through hole 44 on the side wall away from the air outlet 43. The inner air duct 40 communicates with the middle air duct 41 through the inner through hole 44. The middle sleeve 37 has a middle through hole 45 on the side wall away from the inner through hole 44. The middle air duct 41 communicates with the outer air duct 42 through the middle through hole 45. The outer sleeve 38 has an air inlet 46 on the side wall away from the inner through hole 44. The air inlet 46 communicates with the outer air duct 42. In practical applications, the external fan connects to the air inlet 46 and blows air into the external air duct 42. The air in the external air duct 42 enters the middle air duct 41 through the middle through-hole 45, and the air in the middle air duct 41 enters the inner air duct 40 through the inner through-hole 44. The air in the inner air duct 40 is blown out through the air outlet 43 into the arc-shaped air guide groove 34. At the same time, the heating module 35 heats up to heat the air in the inner air duct 40. The heat from the heating module 35 diffuses outward and gradually heats the air in the middle air duct 41 and the external air duct 42, reducing heat loss and improving heat utilization. Furthermore, two insulation layers are formed on the outside of the inner air duct 40, ensuring a stable temperature for the blown hot air. This design of the hot air blower mechanism 9 extends the gas flow path, thereby extending the gas heating time, resulting in good gas heating effect and stable temperature of the blown hot air.

[0033] In this embodiment, the inner air duct 40 is a spiral air duct, and the outer wall of the heating module 35 is provided with spiral patterns 47. The inner wall of the spiral patterns 47 and the inner wall of the inner sleeve 36 form a spiral air duct. This structural design further extends the gas flow path and improves the heating effect of the gas.

[0034] In this embodiment, the heating module 35 includes a heating tube 48 and a heat-conducting sleeve 49 fitted over the heating tube 48. Spiral lines 47 are provided on the outer wall of the heat-conducting sleeve 49, which is installed between two end plates 39. This structural design enables modular assembly of the heating module 35, facilitating maintenance.

[0035] In another embodiment, the heating module 35 is a heating tube 48, and a spiral pattern 47 is provided on the outer wall of the heating tube 48. The spiral pattern 47 and the heating tube 48 are integrally constructed, which reduces the number of parts and the number of assembly steps.

[0036] In this embodiment, the belt feeding mechanism 23 includes a mounting base 50 mounted on the cantilever plate 3, a plurality of guide rollers 51 rotatably connected to the mounting base 50, a drive roller 52 rotatably connected to the mounting base 50 and located between two adjacent guide rollers 51, a belt guide member 53 mounted on the mounting base 50 and located between the drive roller 52 and the guide rollers 51, a belt feeding rotation driver 55 mounted on the mounting base 50 and used to drive the drive roller 52 to rotate, a swing frame 56 rotatably connected at one end to the mounting base 50, and the other end of the swing frame 56 rotatably connected to the drive roller 52. The driven roller 57 is arranged opposite to the roller 52, the bent hook 58 is arranged at the end of the swing frame 56 away from the driven roller 57, and the tension spring 59 is connected between the bent hook 58 and the mounting base 50. The guide belt member 53 has a guide belt groove 54. The elastic force of the tension spring 59 drives the end of the swing frame 56 connected to the driven roller 57 to swing close to the drive roller 52. The material rack 24 is mounted on the mounting base 50. The belt feeding drive 55 is electrically connected to the encoder 21 or the upper drive 12. Specifically, the belt feeding drive 55 can be a motor.

[0037] In practical applications, the elastic force of the tension spring 59 tightens the bending hook 58, causing the end of the swing frame 56 with the driven roller 57 to approach the driving roller 52, thus keeping the driven roller 57 and the driving roller 52 close to each other. The hot melt adhesive strip released by the hot melt adhesive roll passes through multiple guide rollers 51 and through the guide groove 54 of the guide belt member 53 and is clamped between the driven roller 57 and the driving roller 52. The guide groove 54 limits the left and right position and the up and down position of the hot melt adhesive strip. The belt feeding drive 55 drives the driving roller 52 to rotate. The rotating driving roller 52 cooperates with the driven roller 57 to drive the hot melt adhesive strip to move.

[0038] In this embodiment, the air inlet 46 is equipped with an air inlet pipe 60, and the air outlet 43 is equipped with an air outlet pipe 61, which extends into the arc-shaped air guide groove 34. In practical applications, an external fan is connected to the air inlet pipe 60 via an air pipe, and the air outlet pipe 61 blows hot air into the arc-shaped air guide groove 34.

[0039] Specifically, the eccentric rotor 16 can be an eccentric bearing.

[0040] Specifically, a fixed circular blade is provided on the inner side of the pressure roller 14. The fixed circular blade is tangent to the cutter 20, and the fixed circular blade and the cutter 20 cooperate to achieve the cutting work.

[0041] All technical features in this embodiment can be freely combined according to actual needs.

[0042] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A seamless bonding machine characterized by: Includes a machine base (1), a chassis (2) mounted on the machine base (1), a cantilever plate (3) mounted on one side of the top of the chassis (2), a platform (4) mounted on one side of the chassis (2) and located above the machine base (1), a lifting drive (5) mounted on the cantilever plate (3), a lifting seat (6) mounted on the lifting end of the lifting drive (5), a heat insulation plate (7) mounted on one side of the lifting seat (6), a heating block (8) mounted on the heat insulation plate (7), a heat blower mechanism (9) mounted on the back of the heating block (8), and a drive shaft (10) rotatably connected to the bottom end of the lifting seat (6). An upper pressure roller (11) at one end of the drive shaft (10), an upper rotary drive (12) mounted on the other side of the lifting seat (6) for driving the drive shaft (10) to rotate, a first rotating shaft (13) that rotates through the side plate of the housing (2), a lower pressure roller (14) fitted at one end of the first rotating shaft (13), a second rotating shaft (15) that rotates through the side plate of the housing (2), an eccentric rotating block (16) fitted at one end of the second rotating shaft (15), a crank (17) fitted outside the eccentric rotating block (16), a rotating rod (18) that rotates and connects to the side plate of the housing (2), and a rotating rod (18) mounted on the rotating rod (18). The hinge (19) is hinged to one end of the crank (17), the cutter (20) is mounted on one end of the rotating rod (18) and tangent to the inner wall of the lower pressure roller (14), the encoder (21) is mounted in the housing (2) and driven by the first rotating shaft (13), the lower rotation drive mechanism (22) is built into the housing (2) and used to drive the first rotating shaft (13) and the second rotating shaft (15) to rotate, the belt feeding mechanism (23) is mounted on the cantilever plate (3), and the material rack (24) is set on the side of the belt feeding mechanism (23) away from the heating block (8). The eccentric rotating block (16) is rotatably mounted on the crank (17). Inside the inner hole of 7), the first rotating shaft (13), the second rotating shaft (15) and the rotating rod (18) are arranged in parallel. The encoder (21) is electrically connected to the upper rotating driver (12). The lower pressure roller (14) is rotatably set on the table panel (4) and is set opposite to the upper pressure roller (11). The upper pressure roller (11) and the lower pressure roller (14) rotate in opposite directions. A feeding gap (25) is formed between the upper pressure roller (11) and the lower pressure roller (14). There is a hand operation space (26) between the side of the machine box (2), the table panel (4) and the cantilever plate (3). The hand operation space (26) is connected to the feeding gap (25).

2. The seamless bonding machine according to claim 1, characterized in that: The lower rotation drive mechanism (22) includes a drive shaft (27) and a driven shaft (28) arranged in parallel and rotatably connected in the housing (2), a lower rotation driver (29) installed in the housing (2) and used to drive the drive shaft (27) to rotate, a speed-increasing transmission belt group (30) connected between the drive shaft (27) and the second rotating shaft (15), a first speed-reducing transmission belt group (31) connected between the drive shaft (27) and the driven shaft (28), and a second speed-reducing transmission belt group (32) connected between the driven shaft (28) and the first rotating shaft (13).

3. A seamless bonding machine according to claim 1, characterized in that: The bottom end of the heating block (8) is provided with an arc-shaped part (33) surrounding the front side of the upper pressure roller (11), and an arc-shaped air guide groove (34) is provided in the middle of the arc-shaped part (33). The air outlet of the hot air blowing mechanism (9) is connected to the air inlet of the arc-shaped air guide groove (34), and the air outlet of the arc-shaped air guide groove (34) faces the feeding gap (25).

4. A seamless bonding machine according to claim 3, characterized in that: The heat exchanger mechanism (9) includes a heating module (35), an inner sleeve (36) fitted outside the heating module (35), a middle sleeve (37) fitted outside the inner sleeve (36), an outer sleeve (38) fitted outside the middle sleeve (37), and two end plates (39) respectively installed at both ends of the heating module (35), the inner sleeve (36), the middle sleeve (37), and the outer sleeve (38). An inner air duct (40) is formed between the inner wall of the inner sleeve (36) and the outer wall of the heating module (35), a middle air duct (41) is formed between the outer wall of the inner sleeve (36) and the inner wall of the middle sleeve (37), and an outer air duct (42) is formed between the outer wall of the middle sleeve (37) and the inner wall of the outer sleeve (38). The end plate (39) of the near arc-shaped part (33) is provided with an air outlet (43) that communicates with the inner air duct (40). The air outlet (43) communicates with the arc-shaped air guide groove (34). The inner sleeve (36) has an inner through hole (44) on the side wall away from the air outlet (43). The inner air duct (40) communicates with the middle air duct (41) through the inner through hole (44). The middle sleeve (37) has a middle through hole (45) on the side wall away from the inner through hole (44). The middle air duct (41) communicates with the outer air duct (42) through the middle through hole (45). The outer sleeve (38) has an air inlet (46) on the side wall away from the inner through hole (44). The air inlet (46) communicates with the outer air duct (42).

5. A seamless bonding machine according to claim 4, characterized in that: The internal air duct (40) is a spiral air duct.

6. A seamless bonding machine according to claim 5, characterized in that: The outer wall of the heating module (35) is provided with a spiral pattern (47), and a spiral air duct is formed between the inner wall of the spiral pattern (47) and the inner wall of the inner sleeve (36).

7. A seamless bonding machine according to claim 6, characterized in that: The heating module (35) includes a heating tube (48) and a heat-conducting sleeve (49) fitted outside the heating tube (48). Spirals (47) are provided on the outer side wall of the heat-conducting sleeve (49), and the heat-conducting sleeve (49) is installed between two end plates (39).

8. A seamless bonding machine according to claim 6, characterized in that: The heating module (35) is a heating tube (48), and the spiral pattern (47) is provided on the outer wall of the heating tube (48).

9. A seamless bonding machine according to claim 1, characterized in that: The belt feeding mechanism (23) includes a mounting base (50) mounted on the cantilever plate (3), a plurality of guide rollers (51) rotatably connected to the mounting base (50), a drive roller (52) rotatably connected to the mounting base (50) and located between two adjacent guide rollers (51), a belt guide (53) mounted on the mounting base (50) and located between the drive roller (52) and the guide rollers (51), a belt feeding rotary driver (55) mounted on the mounting base (50) and used to drive the drive roller (52) to rotate, a swing frame (56) rotatably connected to the mounting base (50) at one end, and another component rotatably connected to the swing frame (56). A driven roller (57) is disposed at one end opposite to the driving roller (52), a bent hook (58) is disposed at the end of the swing frame (56) away from the driven roller (57), and a tension spring (59) is connected between the bent hook (58) and the mounting base (50). The guide belt component (53) has a guide belt groove (54). The elastic force of the tension spring (59) drives the swing frame (56) connected to the driven roller (57) to swing close to the driving roller (52). The material rack (24) is mounted on the mounting base (50). The belt feed drive (55) is electrically connected to the encoder (21) or the upper drive (12).

10. A seamless bonding machine according to claim 4, characterized in that: The air inlet (46) is equipped with an air inlet pipe (60), and the air outlet (43) is equipped with an air outlet pipe (61), which extends into the arc-shaped air guide groove (34).

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