A seamless folding machine

Abstract

This utility model relates to the field of sewing equipment technology, and in particular to a seamless folding machine, comprising a machine base, a machine housing, an extension plate, a table panel, a lower heat bonding conveyor mechanism, a lower rotation drive mechanism, an upper heat bonding conveyor mechanism, a lifting drive mechanism, and a lifting seat. The upper heat bonding conveyor mechanism includes a swing seat, an upper heating element, an upper heating tape, an upper driving wheel, an upper driven wheel, an upper tensioning wheel, a first elastic component, a second elastic component, and an upper rotation drive mechanism. A folding gap is formed between the upper heating tape and the lower heat bonding conveyor mechanism. A hand-feeding space is formed between the bottom surface of the extension plate, the top surface of the table panel, and the side of the machine housing. The swing seat of this application can adaptively swing and adjust, overcoming the influence of fabric errors or human operation deviations on seamless folding of fabric. It is beneficial to efficiently place the folded fabric into the folding gap without problems such as material jamming, ensuring the quality of seamless folding of fabric and improving the efficiency of seamless folding.

Description

Technical Field

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

[0002] Most current garments are finished by sewing the edges / folds with thread, resulting in noticeable seams that detract from the garment's aesthetics. To address this issue, existing technologies employ thermal bonding to achieve seamless fabric folds; specifically, hot melt adhesive is used to heat-press and bond the folded fabric together for a seamless fold. In existing patents, Chinese patent application number 202421136008.6 discloses a folding machine, which includes a frame, a first bonding mechanism, and a second bonding mechanism. The first bonding mechanism is movably mounted on the frame in the vertical direction; the second bonding mechanism is mounted on the frame and positioned opposite the first bonding mechanism to collectively form a material feeding gap. This patented technology allows the first bonding mechanism to move vertically along the frame. When a taller piece of fabric passes through the feed gap, the first bonding mechanism moves upward under the influence of the taller piece, increasing the height of the feed gap to match the height of the fabric. This reduces friction between the first bonding mechanism and the taller piece, ensuring the first bonding mechanism functions properly and improving the reliability of the folding machine. However, the size of the feed gap between the first and second bonding mechanisms needs to be pre-adjusted according to the fabric batch. That is, the feed gap size is fixed for seamless folding of fabric from the same batch unless specifically adjusted by the operator. When there are errors in the fabric from the same batch or due to operator deviations, the fixed feed gap size can cause problems. If the error or deviation is greater than the feed gap size, the fabric may have difficulty entering the feed gap, leading to jamming. If the error or deviation is less than the feed gap size, the first and second bonding mechanisms may not be able to press the fabric firmly, making it difficult to guarantee the quality of seamless folding. Therefore, the defects are obvious, and a solution is urgently needed. Utility Model Content

[0003] In order to solve the above-mentioned technical problems, the purpose of this utility model is to provide a seamless folding machine.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A seamless folding machine includes a machine base, a housing mounted on the top surface of the machine base, an extension plate mounted on one side of the top of the housing, a table panel mounted on one side of the bottom of the housing, a lower heat bonding conveying mechanism embedded in the table panel, a lower rotation drive mechanism built into the housing and drivenly connected to the lower heat bonding conveying mechanism, an upper heat bonding conveying mechanism movably disposed above the lower heat bonding conveying mechanism, a lifting drive mechanism mounted on the extension plate, and a lifting seat mounted on the lifting end of the lifting drive mechanism; the upper heat bonding conveying mechanism includes a swing seat, an upper heating element, an upper heating tape, an upper driving wheel, an upper driven wheel, an upper tensioning wheel, a first elastic component, a second elastic component, and an upper rotation drive mechanism; one end of the top surface of the swing seat is rotatably connected to the lifting seat via a rotating shaft, and the other end or the middle top surface of the swing seat... The upper drive wheel and the upper driven wheel are rotatably connected to the two ends of the swing seat via the first elastic component. The upper rotation drive mechanism is used to drive the upper drive wheel to rotate. The upper tension wheel is rotatably set on the swing seat. The upper heating element is sleeved outside the upper drive wheel and the upper driven wheel. The upper tension wheel rolls against the outer surface of the upper belt layer of the upper heating element. The upper heating element is located inside the upper heating element and between the upper drive wheel and the upper driven wheel. The upper heating element is elastically connected to the swing seat via the second elastic component. The upper heating element abuts against the inner surface of the lower belt layer of the upper heating element. A folded edge gap is formed between the outer surface of the lower belt layer of the upper heating element and the heat conveying surface of the lower heat bonding conveying mechanism. A hand feeding space is formed between the bottom surface of the extension plate, the top surface of the table panel and the side of the machine box. The folded edge gap is connected to the hand feeding space.

[0006] Furthermore, the upper rotation drive mechanism includes an upper rotation driver mounted on the lifting seat, a first pulley fitted on the rotating end of the upper rotation driver, a drive shaft inserted into the center hole of the upper drive pulley, a second pulley fitted on the drive shaft, and a drive belt connecting the first pulley and the second pulley; when the swing seat swings relative to the lifting seat around the axis of the rotation shaft, the second pulley can swing around the axis of the first pulley.

[0007] Furthermore, the first elastic component includes a first connecting guide rod, a first limiting cap installed at the top of the first connecting guide rod, and a first spring sleeved outside the first connecting guide rod. The bottom end of the first connecting guide rod is fixedly connected to the top surface or middle top surface of the other end of the swing seat. The first connecting guide rod slides through the lifting seat. The first limiting cap is located above the lifting seat. The first spring is clamped between the bottom surface of the lifting seat and the top surface of the swing seat.

[0008] Furthermore, the second elastic component includes a second connecting guide rod, a second limiting cap, a second spring, and a U-shaped plate. The bottom end of the second connecting guide rod is fixedly connected to the top surface of the U-shaped plate. The second spring is sleeved on the outside of the second connecting guide rod. The second limiting cap is installed on the top end of the second connecting guide rod. The second connecting guide rod slides through the top surface of the swing seat. The second limiting cap is located above the top surface of the swing seat. The upper heating element is installed on the U-shaped plate. The upper layer of the heating element passes through the inner cavity of the U-shaped plate. The second spring is clamped between the top surface of the U-shaped plate and the inner top wall of the swing seat.

[0009] Furthermore, both opposite side plates of the swing seat are provided with floating limit grooves, and the two side plates of the U-shaped plate are respectively raised and lowered in the two floating limit grooves.

[0010] Furthermore, the upper heat bonding conveying mechanism also includes a corner piece, the corner of which is rotatably connected to the outer wall of the swing seat, the upper tensioning wheel is rotatably connected to one end of the corner piece, and the other end of the corner piece is detachably connected to the swing seat via a fastener. A movable hole is provided on one side plate of the swing seat, and the upper tensioning wheel is located at the movable hole, allowing the upper tensioning wheel to move within the movable hole.

[0011] Furthermore, the lower heat bonding conveying mechanism includes a mounting base embedded in the table panel, a lower driving wheel and a lower driven wheel rotatably connected to both ends of the mounting base, a lower heat transfer cable sleeved outside the lower driving wheel and the lower driven wheel, a lower heating element installed in the mounting base and located inside the lower heat transfer cable, and a lower tensioning wheel rotatably installed in the mounting base and rolling against the outer surface of the lower layer of the lower heat transfer cable. The lower heating element is located between the lower driving wheel and the lower driven wheel. The rotating end of the lower rotation drive mechanism extends into the table panel and is driven to connect with the lower driving wheel. The lower rotation drive mechanism is used to drive the lower driving wheel to rotate. The rotation direction of the lower heat transfer cable is opposite to the rotation direction of the upper heat transfer cable, and the rotation speed of the lower heat transfer cable is equal to the rotation speed of the upper heat transfer cable.

[0012] Furthermore, the seamless folding machine also includes a hot air blowing device installed at the front end of the swing seat. The air outlet of the hot air blowing device is located at the front end of the upper hot bonding conveying mechanism and faces the feed port of the folding gap.

[0013] Furthermore, the hot air blowing device is inclined, and the seamless folding machine also includes a guide belt assembly installed on the top of the extension plate and a material rack installed on the extension plate or the guide belt assembly, with the guide belt assembly located between the material rack and the hot air blowing device.

[0014] Furthermore, the guide belt assembly includes a fixed base mounted on the extension plate, a plurality of guide rollers rotatably connected to the fixed base, an active roller rotatably connected to the fixed base and located between two adjacent guide rollers, a guide belt component mounted on the fixed base and located between the active roller and the guide roller, a belt feeding drive mounted on the fixed base for driving the active roller to rotate, a swing frame rotatably connected to the fixed base at one end, a driven roller rotatably connected to the other end of the swing frame and disposed opposite to the active roller, a bending hook disposed at the end of the swing frame away from the driven roller, and a tension spring connected between the bending hook and the fixed base. The guide belt component has a guide belt 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 active roller.

[0015] The beneficial effects of this utility model are as follows: In practical applications, according to the required thickness of the fabric to be folded, the lifting drive mechanism drives the lifting seat, along with the upper heat-bonding conveyor mechanism, to rise and fall, thereby adjusting the gap between the upper and lower heat-bonding conveyor mechanisms and thus adjusting the size of the folding gap. After adjusting the size of the folding gap, the upper rotation drive mechanism drives the upper driving wheel to rotate. The rotating upper driving wheel cooperates with the upper driven wheel to drive the upper heating tape to rotate, causing the upper heating element to heat up. The second elastic component applies a downward force to the upper heating element, ensuring that the upper heating element is always in contact with the lower layer of the upper heating tape, so that the upper heating element can efficiently heat the upper heating tape. At the same time... The lower rotary drive mechanism drives the heat conveying surface (lower heat transfer cable) of the lower heat bonding conveyor to rotate. The rotation direction of the lower heat bonding conveyor is opposite to that of the upper heat transfer cable. At this time, the fabric, coated with hot melt adhesive and folded in half, is placed in the folding gap. With the coordinated action of the lower heat bonding conveyor and the upper heat transfer cable, the fabric is conveyed, moving along the folding gap. During this process, the upper and lower heat bonding conveyors heat the upper and lower sides of the fabric respectively, causing the hot melt adhesive within the fabric to melt. This allows the folded fabric to be bonded by the melted hot melt adhesive, completing the seamless folding. The hand placement space provides ample room for the operator's hands, facilitating the placement of the fabric in the folding gap. The upper tensioning wheel provides tension to the upper heat transfer cable, ensuring stable transmission and preventing slippage. The folding gap is adjustable to accommodate seamless folding of fabrics of different specifications. Furthermore, since the thickness of different fabrics after folding may vary or there may be deviations due to manual operation, one end of the swing seat is elastically connected to the lifting seat via a first elastic component. This allows the swing seat to adapt to the lifting seat as the folded fabric enters or moves within the folding gap. The elasticity of the first elastic component ensures that the heating tape remains in contact with the fabric, guaranteeing the smooth and stable passage of the fabric through the folding gap while ensuring the quality of the seamless folding through heat pressing. The adjustable folding gap of this invention accommodates seamless folding of fabrics of different specifications. The upper heating element remains in contact with the lower layer of the heating tape, improving heat transfer efficiency. The hand placement space facilitates the operator's placement of the fabric into the folding gap. The swing seat's adaptive swing adjustment overcomes the impact of fabric errors or manual operation deviations on seamless folding, facilitating efficient placement of folded fabric into the folding gap without jamming, ensuring the quality of seamless folding and improving efficiency. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0017] Figure 2 This is a three-dimensional structural diagram of the concealed machine base and chassis behind the cover plate of this utility model.

[0018] Figure 3 This is a three-dimensional structural diagram of the lifting seat, lifting drive mechanism, upper heat bonding conveying mechanism, and lower heat bonding conveying mechanism of this utility model.

[0019] Figure 4 This is a three-dimensional structural diagram of the lifting seat, lifting drive mechanism, upper heat bonding conveying mechanism and lower heat bonding conveying mechanism of this utility model from another perspective.

[0020] Figure 5 This is an exploded structural diagram of the lifting seat, upper heat bonding conveying mechanism, and lower heat bonding conveying mechanism of this utility model.

[0021] Figure 6 This is a three-dimensional structural diagram of the guide belt assembly and material rack of this utility model.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Machine base; 2. Machine casing; 3. Extension plate; 4. Tabletop; 5. Lower heat bonding conveyor mechanism; 6. Lower rotation drive mechanism; 7. Upper heat bonding conveyor mechanism; 8. Lifting drive mechanism; 9. Lifting seat; 10. Swing seat; 11. Upper heating element; 12. Upward heating tape; 13. Upper drive wheel; 14. Upper driven wheel; 15. Upper tension wheel; 16. First elastic component; 17. Second elastic component; 18. Upper rotation drive mechanism; 19. Rotating shaft; 20. Folding gap; 21. Hand feeding space; 22. Upper rotation driver; 23. First pulley; 24. Drive shaft; 25. Second pulley; 26. Drive belt; 27. First connection 28. Guide rod; 29. ​​First limit cap; 30. First spring; 31. Second connecting guide rod; 32. Second limit cap; 33. Second spring; 34. U-shaped plate; 35. Floating limit groove; 36. Corner piece; 37. Movable hole; 38. Mounting base; 49. Lower drive wheel; 40. Lower driven wheel; 41. Lower heat transfer tape; 42. Lower heating element; 43. Lower tension wheel; 44. Hot air blowing device; 45. Guide belt assembly; 46. Material rack; 47. Fixed base; 48. Guide roller; 49. Drive roller; 50. Guide belt component; 51. Belt feeding rotation driver; 52. Swing frame; 53. Driven roller; 54. Bending hook; 55. Tension spring; 56. Guide belt groove. Detailed Implementation

[0024] 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.

[0025] like Figures 1 to 6As shown, the present invention provides a seamless folding machine, which includes a machine base 1, a machine housing 2 mounted on the top surface of the machine base 1, an extension plate 3 mounted on one side of the top of the machine housing 2, a table panel 4 mounted on one side of the bottom of the machine housing 2, a lower heat bonding conveying mechanism 5 embedded in the table panel 4, a lower rotation drive mechanism 6 built into the machine housing 2 and drivenly connected to the lower heat bonding conveying mechanism 5, an upper heat bonding conveying mechanism 7 movably disposed above the lower heat bonding conveying mechanism 5, a lifting drive mechanism 8 mounted on the extension plate 3, and a lifting seat 9 mounted on the lifting end of the lifting drive mechanism 8. The upper heat bonding conveying mechanism 7 and the lower heat bonding conveying mechanism 5 are arranged vertically and vertically respectively. The upper heat bonding conveying mechanism 7 includes a swing seat 10, an upper heating element 11, an upper heating tape 12, an upper driving wheel 13, an upper driven wheel 14, an upper tensioning wheel 15, a first elastic component 16, a second elastic component 17, and an upper rotation drive mechanism 18. One end of the top surface of the swing seat 10 is rotatably connected to the lifting seat 9 via a rotating shaft 19. The other end top surface or middle top surface is elastically connected to the lifting seat 9 via the first elastic component 16. The upper driving wheel 13 and the upper driven wheel 14 are respectively rotatably connected to the two ends of the swing seat 10. The upper rotation drive mechanism 18 is used to drive the upper driving wheel 13 to rotate. The upper tension wheel 15 is rotatably mounted on the swing seat 10. The upper heating element 12 is driven and sleeved outside the upper driving wheel 13 and the upper driven wheel 14. The upper tension wheel 15 rolls against the outer surface of the upper belt layer of the upper heating element 12. The upper heating element 11 is located on the upper heating element. The upper heating element 11 is located between the upper driving wheel 13 and the upper driven wheel 14. It is elastically connected to the swing seat 10 via the second elastic component 17. The upper heating element 11 abuts against the inner surface of the lower belt layer of the upper heating tape 12. A folded edge gap 20 is formed between the outer surface of the lower belt layer of the upper heating tape 12 and the heat conveying surface of the lower heat bonding conveying mechanism 5. A hand feeding space 21 is formed between the bottom surface of the extension plate 3, the top surface of the table panel 4, and the side of the machine housing 2. The folded edge gap 20 is connected to the hand feeding space 21. Specifically, the diameter of the upper driving wheel 13 is larger than the diameter of the upper driven wheel 14. The upper tensioning wheel 15 is set close to the upper driving wheel 13. The heat conveying surface of the lower heat bonding conveying mechanism 5 is flush with the table surface of the table panel 4.

[0026] In practical applications, based on the required thickness of the fabric to be hemmed, the lifting drive mechanism 8 drives the lifting seat 9, along with the upper heat bonding conveyor mechanism 7, to rise and fall, thereby adjusting the gap between the upper heat bonding conveyor mechanism 7 and the lower heat bonding conveyor mechanism 5, and thus adjusting the size of the hemming gap 20. After adjusting the size of the hemming gap 20, the upper rotation drive mechanism 18 drives the upper drive wheel 13 to rotate. The rotating upper drive wheel 13 cooperates with the upper driven wheel 14 to drive the upper heating tape 12 to rotate, causing the upper heating element 11 to heat up. The second elastic component 17 applies a downward force to the upper heating element 11, ensuring that the upper heating element 11 is always in contact with the lower layer of the upper heating tape 12, so that the upper heating element 11 can efficiently heat the upper heating tape 12. Simultaneously, the lower rotation drive mechanism 6 drives the heat conveying surface (lower heat transfer cable 40) of the lower heat bonding conveying mechanism 5 to rotate. The rotation direction of the heat conveying surface of the lower heat bonding conveying mechanism 5 is opposite to the rotation direction of the upper heat transfer cable 12. At this time, the fabric with hot melt adhesive and folded is placed in the folding gap 20. With the cooperation of the heat conveying surface of the lower heat bonding conveying mechanism 5 and the upper heat transfer cable 12, the fabric is conveyed, so that the fabric moves along the folding gap 20. During this process, the upper heat bonding conveying mechanism 7 and the lower heat bonding conveying mechanism 5 heat the upper and lower sides of the fabric respectively, so that the hot melt adhesive in the fabric melts, so that the folded fabric is bonded by the melted hot melt adhesive to complete the seamless folding of the fabric. The hand placement space 21 provides space for the operator's hands, facilitating the placement of fabric within the folding gap 20. The upper tensioning wheel 15 provides tension to the uploading cable 12, ensuring stable transmission and preventing slippage. The folding gap 20 is adjustable to accommodate seamless folding of fabrics of different specifications. Furthermore, since the thickness of folded fabrics may vary or deviate due to manual operation, one end of the swing seat 10 is elastically connected to the lifting seat 9 via the first elastic component 16. This allows the swing seat 10 to adapt to the lifting seat 9 as the folded fabric enters or moves within the folding gap 20. The elasticity of the first elastic component 16 ensures that the uploading cable 12 remains in contact with the fabric, guaranteeing smooth and stable passage through the folding gap 20 while maintaining the quality of the seamless folding through heat pressing. The folding gap 20 of this invention is adjustable to meet the requirements of seamless folding of fabrics of different specifications. The upper heating element 11 is always in contact with the lower layer of the upper heating tape 12, which improves the heat transfer efficiency. The hand placement space 21 makes it easy for operators to put the fabric into the folding gap 20. The swing seat 10 can swing and adjust adaptively, which can overcome the influence of fabric error or human operation deviation on the seamless folding of the fabric. It is conducive to efficiently putting the folded fabric into the folding gap 20 without problems such as material jamming, ensuring the quality of seamless folding of the fabric and improving the efficiency of seamless folding.

[0027] In this embodiment, the upper rotation drive mechanism 18 includes an upper rotation driver 22 mounted on the lifting seat 9, a first pulley 23 fitted on the rotating end of the upper rotation driver 22, a drive shaft 24 inserted into the center hole of the upper drive wheel 13, a second pulley 25 fitted on the drive shaft 24, and a drive belt 26 connecting the first pulley 23 and the second pulley 25. When the swing seat 10 swings relative to the lifting seat 9 around the axis of the rotation shaft 19, the second pulley 25 can swing around the axis of the first pulley 23. Specifically, the upper rotation driver 22 can be a motor.

[0028] In practical applications, the upper rotary drive 22 drives the first pulley 23 to rotate. The rotating first pulley 23, via the transmission belt 26, drives the second pulley 25 to rotate. The rotating second pulley 25 drives the transmission shaft 24, which in turn drives the upper driving pulley 13 to rotate. The rotating upper driving pulley 13 cooperates with the upper driven pulley 14 to drive the upper heating cable 12 to rotate. When the swing seat 10 swings adaptively relative to the lifting seat 9, the second pulley 25 and the transmission belt 26 form a linkage structure to follow the swing seat 10 in its adaptive swing. This ensures that the upper rotary drive mechanism 18 does not affect the normal swing of the swing seat 10, and the swing seat 10 does not affect the normal transmission of the upper rotary drive mechanism 18; they do not interfere with each other.

[0029] In this embodiment, the first elastic component 16 includes a first connecting guide rod 27, a first limiting cap 28 mounted on the top of the first connecting guide rod 27, and a first spring 29 sleeved on the outside of the first connecting guide rod 27. The bottom end of the first connecting guide rod 27 is fixedly connected to the top surface or middle top surface of the other end of the swing seat 10. The first connecting guide rod 27 slides through the lifting seat 9. The first limiting cap 28 is located above the lifting seat 9. The first spring 29 is sandwiched between the bottom surface of the lifting seat 9 and the top surface of the swing seat 10. This structural design allows the swing seat 10 to swing adaptively relative to the lifting seat 9, and the elasticity of the first spring 29 ensures that the uploading heat pipe 12 is always in contact with the fabric.

[0030] In this embodiment, the second elastic component 17 includes a second connecting guide rod 30, a second limiting cap 31, a second spring 32, and a U-shaped plate 33. The bottom end of the second connecting guide rod 30 is fixedly connected to the top surface of the U-shaped plate 33. The second spring 32 is sleeved on the outside of the second connecting guide rod 30. The second limiting cap 31 is installed on the top end of the second connecting guide rod 30. The second connecting guide rod 30 slides through the top surface of the swing seat 10. The second limiting cap 31 is located above the top surface of the swing seat 10. The upper heating element 11 is installed on the U-shaped plate 33. The upper layer of the upper heating cable 12 passes through the inner cavity of the U-shaped plate 33. The second spring 32 is sandwiched between the top surface of the U-shaped plate 33 and the inner top wall of the swing seat 10. This structural design allows the upper heating element 11 to float up and down adaptively, and the upper heating element 11 can always be in contact with the lower layer of the upper heating cable 12.

[0031] Specifically, the swing seat 10 is provided with a downward-facing accommodating cavity, and the upper driving wheel 13, upper heating element 11, upper driven wheel 14, upper tensioning wheel 15 and upper heating cable 12 are all located in the accommodating cavity. The second spring 32 is sandwiched between the top surface of the U-shaped plate 33 and the top wall of the accommodating cavity, and there are multiple second elastic components 17.

[0032] In this embodiment, both opposite side plates of the swing seat 10 are provided with floating limiting grooves 34, and the two side plates of the U-shaped plate 33 are respectively raised and lowered within the two floating limiting grooves 34. This structural design allows the U-shaped plate 33 to adaptively float up and down within the floating limiting grooves 34, and the floating limiting grooves 34 limit the stroke of the U-shaped plate 33 to float up and down.

[0033] In this embodiment, the upper heat-bonding conveying mechanism 7 also includes a corner piece 35. The corner of the corner piece 35 is rotatably connected to the outer wall of the swing seat 10. The upper tensioning wheel 15 is rotatably connected to one end of the corner piece 35, and the other end of the corner piece 35 is detachably connected to the swing seat 10 via a fastener. A movable hole 36 is provided on one side plate of the swing seat 10, and the upper tensioning wheel 15 is located at the movable hole 36, allowing it to move within the movable hole 36. Specifically, the fastener can be a locking bolt, which is threadedly connected to the swing seat 10. When it is necessary to replace or disassemble the upper heat transfer cable 12, the fastener is loosened, allowing the corner piece 35 to swing relative to the swing seat 10, thereby allowing the upper tensioning wheel 15 to swing within the movable hole 36. When the upper tensioning wheel 15 moves away from the upper heat transfer cable 12, the upper heat transfer cable 12 can be detached from the upper driving wheel 13 and the upper driven wheel 14.

[0034] In this embodiment, the lower heat bonding conveying mechanism 5 includes a mounting base 37 embedded in the table panel 4, a lower driving wheel 38 and a lower driven wheel 39 rotatably connected to both ends of the mounting base 37, a lower heat transfer cable 40 sleeved outside the lower driving wheel 38 and the lower driven wheel 39, a lower heating element 41 mounted in the mounting base 37 and located inside the lower heat transfer cable 40, and a lower tensioning wheel 42 rotatably mounted in the mounting base 37 and rolling against the outer surface of the lower layer of the lower heat transfer cable 40. The lower heating element 41 is located between the lower driving wheel 38 and the lower driven wheel 39. The rotating end of the lower rotation drive mechanism 6 extends into the table panel 4 and is driven to connect with the lower driving wheel 38. The lower rotation drive mechanism 6 is used to drive the lower driving wheel 38 to rotate. The inner surface of the upper layer of the lower heat transfer cable 40 abuts against the lower heating element 41. The rotation direction of the lower heat transfer cable 40 is opposite to the rotation direction of the upper heat transfer cable 12, and the rotation speed of the lower heat transfer cable 40 is equal to the rotation speed of the upper heat transfer cable 12. Specifically, the diameter of the lower driving wheel 38 is larger than the diameter of the lower driven wheel 39, and the lower tensioning wheel 42 is positioned close to the lower driving wheel 38.

[0035] In practical applications, the lower rotation drive mechanism 6 drives the lower drive wheel 38 to rotate, and the rotating lower drive wheel 38 cooperates with the lower driven wheel 39 to drive the lower heat transfer cable 40 to rotate; wherein, the lower tension wheel 42 applies tension to the lower heat transfer cable 40, so that the lower heat transfer cable 40 is kept in a taut state; the lower heating element 41 heats up and heats the lower heat transfer cable 40.

[0036] In this embodiment, the seamless folding machine also includes a hot air blowing device 43 installed at the front end of the swing seat 10. The air outlet of the hot air blowing device 43 is located at the front end of the upper heat bonding conveying mechanism 7 and faces the feed inlet of the folding gap 20. Before the folded fabric enters the folding gap 20, the hot air blowing device 43 blows hot air onto the folded fabric to heat it, thereby improving heating efficiency and production efficiency.

[0037] In this embodiment, the hot air blowing device 43 is inclined, and the seamless folding machine also includes a guide belt assembly 44 mounted on the top of the extension plate 3 and a material rack 45 mounted on the extension plate 3 or the guide belt assembly 44. The guide belt assembly 44 is located between the material rack 45 and the hot air blowing device 43. In practical applications, hot melt adhesive rolls are mounted on the material rack 45. The hot melt adhesive tape of the hot melt adhesive rolls is wrapped around the guide belt assembly 44 and then attached to the outer surface of the hot air blowing device 43. The hot melt adhesive tape can move along the outer surface of the hot air blowing device 43, and the hot melt adhesive tape is adhered to the fabric. The hot air blowing device 43 heats the hot melt adhesive tape adhered to the fabric.

[0038] In this embodiment, the guide belt assembly 44 includes a fixed base 46 mounted on the extension plate 3, a plurality of guide rollers 47 rotatably connected to the fixed base 46, an active roller 48 rotatably connected to the fixed base 46 and located between two adjacent guide rollers 47, a guide belt member 49 mounted on the fixed base 46 and located between the active roller 48 and the guide rollers 47, a belt feeding rotary driver 50 mounted on the fixed base 46 and used to drive the active roller 48 to rotate, a swing frame 51 rotatably connected at one end to the fixed base 46, a driven roller 52 rotatably connected to the other end of the swing frame 51 and disposed opposite to the active roller 48, a bending hook 53 disposed at the end of the swing frame 51 away from the driven roller 52, and a tension spring 54 connected between the bending hook 53 and the fixed base 46. The guide belt member 49 has a guide belt groove 55. The elastic force of the tension spring 54 drives the end of the swing frame 51 connected to the driven roller 52 to swing close to the active roller 48. Specifically, the belt feeding rotary driver 50 can be a motor.

[0039] In practical applications, the hot melt adhesive tape released from the hot melt adhesive roll passes through multiple guide rollers 47 and through the guide groove 55 of the guide belt member 49 and the gap between the drive roller 48 and the driven roller 52. Under the action of the tension spring 54, the driven roller 52 presses the hot melt adhesive tape onto the drive roller 48. The belt feeding drive 50 drives the drive roller 48 to rotate. The rotating drive roller 48 cooperates with the driven roller 52 to roll and convey the hot melt adhesive tape, thereby realizing the conveying of the hot melt adhesive tape.

[0040] Specifically, both the mounting base 37 and the U-shaped plate 33 are made of heat-insulating material.

[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 folding machine, characterized in that: The machine includes a machine base (1), a chassis (2) mounted on the top surface of the machine base (1), an extension plate (3) mounted on one side of the top of the chassis (2), a table panel (4) mounted on one side of the bottom of the chassis (2), a lower heat bonding conveying mechanism (5) embedded in the table panel (4), a lower rotation drive mechanism (6) built into the chassis (2) and drivenly connected to the lower heat bonding conveying mechanism (5), an upper heat bonding conveying mechanism (7) movably mounted above the lower heat bonding conveying mechanism (5), a lifting drive mechanism (8) mounted on the extension plate (3), and a lifting drive mechanism (8) mounted on the extension plate (3). The lifting end of the lowering drive mechanism (8) has a lifting seat (9); the upper heat bonding conveying mechanism (7) includes a swing seat (10), an upper heating element (11), an upper heating tape (12), an upper driving wheel (13), an upper driven wheel (14), an upper tensioning wheel (15), a first elastic component (16), a second elastic component (17), and an upper rotation drive mechanism (18). One end of the top surface of the swing seat (10) is rotatably connected to the lifting seat (9) via a rotating shaft (19), and the other end or the middle top surface of the swing seat (10) is connected to the first elastic component (16). The upper drive wheel (13) and the upper driven wheel (14) are elastically connected to the lifting seat (9). The upper drive wheel (13) and the upper driven wheel (14) are rotatably connected to the two ends of the swing seat (10). The upper rotation drive mechanism (18) is used to drive the upper drive wheel (13) to rotate. The upper tension wheel (15) is rotatably set on the swing seat (10). The upper heating cable (12) is sleeved outside the upper drive wheel (13) and the upper driven wheel (14). The upper tension wheel (15) rolls against the outer surface of the upper layer of the upper heating cable (12). The upper heating element (11) is located inside the upper heating cable (12) and is located on the upper drive wheel (14). 3) Between the upper driven wheel (14), the upper heating element (11) is elastically connected to the swing seat (10) via the second elastic component (17). The upper heating element (11) abuts against the inner surface of the lower belt layer of the upper heating tape (12). The outer surface of the lower belt layer of the upper heating tape (12) and the heat conveying surface of the lower heat bonding conveying mechanism (5) form a folded edge gap (20). The bottom surface of the extension plate (3), the top surface of the table panel (4) and the side of the machine box (2) form a hand feeding space (21). The folded edge gap (20) is connected to the hand feeding space (21).

2. A seamless folding machine according to claim 1, characterized in that: The upper rotation drive mechanism (18) includes an upper rotation driver (22) mounted on the lifting seat (9), a first pulley (23) fitted on the rotating end of the upper rotation driver (22), a drive shaft (24) inserted into the center hole of the upper drive wheel (13), a second pulley (25) fitted on the drive shaft (24), and a drive belt (26) connecting the first pulley (23) and the second pulley (25). When the swing seat (10) swings relative to the lifting seat (9) around the axis of the rotation shaft (19), the second pulley (25) can swing around the axis of the first pulley (23).

3. A seamless folding machine according to claim 1, characterized in that: The first elastic component (16) includes a first connecting guide rod (27), a first limiting cap (28) installed at the top of the first connecting guide rod (27), and a first spring (29) sleeved outside the first connecting guide rod (27). The bottom end of the first connecting guide rod (27) is fixedly connected to the top surface or middle top surface of the other end of the swing seat (10). The first connecting guide rod (27) slides through the lifting seat (9). The first limiting cap (28) is located above the lifting seat (9). The first spring (29) is sandwiched between the bottom surface of the lifting seat (9) and the top surface of the swing seat (10).

4. A seamless folding machine according to claim 1, characterized in that: The second elastic component (17) includes a second connecting guide rod (30), a second limiting cap (31), a second spring (32), and a U-shaped plate (33). The bottom end of the second connecting guide rod (30) is fixedly connected to the top surface of the U-shaped plate (33). The second spring (32) is sleeved on the outside of the second connecting guide rod (30). The second limiting cap (31) is installed on the top end of the second connecting guide rod (30). The second connecting guide rod (30) slides through the top surface of the swing seat (10). The second limiting cap (31) is located above the top surface of the swing seat (10). The upper heating element (11) is installed on the U-shaped plate (33). The upper layer of the upper heating tape (12) passes through the inner cavity of the U-shaped plate (33). The second spring (32) is sandwiched between the top surface of the U-shaped plate (33) and the inner top wall of the swing seat (10).

5. A seamless folding machine according to claim 4, characterized in that: The two opposite side plates of the swing seat (10) are provided with floating limit grooves (34), and the two side plates of the U-shaped plate (33) are respectively raised and lowered in the two floating limit grooves (34).

6. A seamless folding machine according to claim 1, characterized in that: The upper heat bonding conveying mechanism (7) also includes a corner piece (35), the corner of which is rotatably connected to the outer wall of the swing seat (10), the upper tensioning wheel (15) is rotatably connected to one end of the corner piece (35), and the other end of the corner piece (35) is detachably connected to the swing seat (10) via a fastener. A movable hole (36) is provided on one side plate of the swing seat (10), and the upper tensioning wheel (15) is located at the movable hole (36). The upper tensioning wheel (15) can move within the movable hole (36).

7. A seamless folding machine according to claim 1, characterized in that: The lower heat bonding conveying mechanism (5) includes a mounting base (37) embedded in the table panel (4), a lower driving wheel (38) and a lower driven wheel (39) rotatably connected to both ends of the mounting base (37), a lower heat transfer cable (40) sleeved outside the lower driving wheel (38) and the lower driven wheel (39), a lower heating element (41) installed in the mounting base (37) and located in the lower heat transfer cable (40), and a lower belt layer outer surface rotatably disposed in the mounting base (37) and connected to the lower heat transfer cable (40). The lower tensioning wheel (42) with rolling contact, the lower heating element (41) is located between the lower driving wheel (38) and the lower driven wheel (39), the rotating end of the lower rotation drive mechanism (6) extends into the table panel (4) and is driven to connect with the lower driving wheel (38), the lower rotation drive mechanism (6) is used to drive the lower driving wheel (38) to rotate, the rotation direction of the lower heat transfer cable (40) is opposite to the rotation direction of the upper heat transfer cable (12), and the rotation speed of the lower heat transfer cable (40) is equal to the rotation speed of the upper heat transfer cable (12).

8. A seamless folding machine according to claim 1, characterized in that: The seamless folding machine also includes a hot air blowing device (43) installed at the front end of the swing seat (10). The air outlet of the hot air blowing device (43) is located at the front end of the upper heat bonding conveying mechanism (7) and faces the feed port of the folding gap (20).

9. A seamless folding machine according to claim 8, characterized in that: The hot air blowing device (43) is inclined. The seamless folding machine also includes a guide belt assembly (44) installed on the top of the extension plate (3) and a material rack (45) installed on the extension plate (3) or the guide belt assembly (44). The guide belt assembly (44) is located between the material rack (45) and the hot air blowing device (43).

10. A seamless folding machine according to claim 9, characterized in that: The belt guide assembly (44) includes a fixed base (46) mounted on the extension plate (3), a plurality of guide rollers (47) rotatably connected to the fixed base (46), a drive roller (48) rotatably connected to the fixed base (46) and located between two adjacent guide rollers (47), a belt guide member (49) mounted on the fixed base (46) and located between the drive roller (48) and the guide rollers (47), a belt feed drive (50) mounted on the fixed base (46) and used to drive the drive roller (48) to rotate, and one end rotatably connected to the fixed base (3). The fixed seat (46) has a swing frame (51), a driven roller (52) rotatably connected to the other end of the swing frame (51) and arranged opposite to the driving roller (48), a bent hook (53) arranged at the end of the swing frame (51) away from the driven roller (52), and a tension spring (54) connected between the bent hook (53) and the fixed seat (46). The guide belt (49) has a guide belt groove (55). The elastic force of the tension spring (54) drives the end of the swing frame (51) connected to the driven roller (52) to swing close to the driving roller (48).

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