A packaging bag edge sealing machine
By incorporating adjustable height transfer rollers, dual floating roller tension adjustment, hydraulic cylinder-controlled pressure adjustment components, and magnetically connected hot melt blades, the shortcomings of packaging bag edge melting machines in terms of adaptability and operational efficiency have been resolved, achieving efficient and precise edge melting processing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- JIANGXI KAIHENG NEW MATERIAL TECH CO LTD
- Filing Date
- 2026-04-29
- Publication Date
- 2026-06-12
AI Technical Summary
Existing packaging bag edge melting machines have shortcomings in terms of fixed transmission roller height, inaccurate tension adjustment, inaccurate pressure control, and cumbersome hot melt knife replacement, making it difficult to adapt to the production needs of packaging bags of different specifications.
The equipment features adjustable height conveyor rollers, a dual floating roller tension adjustment structure, a hydraulically controlled pressure adjustment component, and a magnetically connected hot melt knife design, enabling flexible adaptation and efficient operation.
It improves the adaptability and edge melting quality of the equipment, ensures smooth material transfer, reduces the difficulty and time of operation, and improves edge melting efficiency.
Smart Images
Figure CN122185649A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of packaging bag processing equipment technology, and in particular to a packaging bag edge melting machine. Background Technology
[0002] In the production of packaging bags, edge sealing is a crucial process. Its purpose is to seal the edges of the bag using heat to ensure its airtightness and structural stability. Currently available edge sealing machines for packaging bags have several shortcomings, failing to meet the demands for efficient and precise production: First, the height of the transmission and receiving rollers in existing edge sealing machines is mostly fixed, making it impossible to flexibly adjust according to the thickness and width of the packaging bag, resulting in poor adaptability. Second, the tension adjustment mechanism is poorly designed, often using a single floating roller for adjustment, leading to low precision and easily causing wrinkles and shifts during material transmission, thus affecting the quality of the edge sealing. Third, the clamping force of the pressure adjustment component is difficult to control precisely, and the fixed position of the clamping roller cannot adapt to packaging bags of different widths, easily leading to problems such as excessive clamping causing material damage or excessive clamping causing material shifting. Fourth, the hot melt knife components are mostly fixedly installed, making disassembly and assembly cumbersome, and resulting in low operational efficiency when different models of hot melt knives need to be replaced to adapt to different edge sealing requirements. Summary of the Invention
[0003] The purpose of this invention is to provide a packaging bag edge-sealing machine that enables adjustable height for dual material conveying, precise tension adjustment, controllable pressure, rapid assembly and disassembly of the hot melt blade, and coordinated control of various components, thereby improving edge-sealing efficiency and quality and adapting to packaging bags of different specifications for dual material bonding and edge-sealing.
[0004] To achieve the above objectives, the present invention provides a packaging bag edge melting machine, comprising a base, wherein a first transmission roller, a second transmission roller, a tension adjustment unit, an edge melting and cutting unit, and a receiving roller are sequentially arranged on the upper surface of the base along the material conveying direction; the first transmission roller, the second transmission roller, and the receiving roller are respectively fixedly connected to the base via a first telescopic component, a second telescopic component, and a third telescopic component; the tension adjustment unit includes a gantry frame, wherein a floating roller assembly for adjusting the material tension is arranged inside the gantry frame, and a horizontal moving component is arranged at the bottom of the gantry frame; the edge melting and cutting unit includes pressure adjustment components symmetrically arranged along the material conveying direction, and edge melting components are arranged between the pressure adjustment components.
[0005] Preferably, the first telescopic component includes electrically operated telescopic rods symmetrically arranged on both sides of the first transmission roller. The lower end of the electrically operated telescopic rod is fixedly connected to the upper surface of the base, and the upper end is rotatably connected to both ends of the first transmission roller through a rotating bearing. The second telescopic component and the third telescopic component have the same structure as the first telescopic component and are symmetrically arranged at both ends of the second transmission roller and the receiving roller, respectively.
[0006] Preferably, the floating roller assembly includes a first floating roller and a second floating roller arranged in parallel from top to bottom. A first connecting rod is coaxially fixedly connected to both ends of the first floating roller. A first slider is fixedly connected to the end of each first connecting rod away from the first floating roller. The first slider is slidably embedded in a first groove vertically opened on the upper part of the inner surface of both sides of the gantry. First limiting blocks are symmetrically arranged on both sides of the first slider. First limiting grooves, adapted to the first limiting blocks, are vertically opened along the length of the inner walls of both sides of the first groove to limit the sliding direction of the first slider. A first lead screw is vertically arranged inside the first groove. The upper end of the first lead screw is connected to the output end of a first drive motor via a half-bevel gear assembly, and the lower end is rotatably connected to the bottom of the first groove via a bearing. The first lead screw is threadedly engaged with a first threaded hole opened at the center of the first slider to achieve vertical lifting adjustment of the first floating roller. The second floating roller is coaxially fixedly connected to two ends of a second connecting rod. The end of the second connecting rod away from the second floating roller is fixedly connected to a second slider. The second slider is slidably embedded in the second groove vertically opened at the lower part of the inner surface of both sides of the gantry. The second slider is symmetrically provided with second limiting blocks on both sides. The inner wall of both sides of the second groove is vertically opened with second limiting grooves that are adapted to the second limiting blocks along its length. The second groove is vertically provided with a second lead screw. The lower end of the second lead screw is connected to the output end of the second drive motor through a half bevel gear assembly. The upper end is rotatably connected to the top of the second groove through a bearing. The second lead screw is threadedly engaged with the second threaded hole opened at the center of the second slider to realize the vertical lifting and lowering adjustment of the second floating roller.
[0007] Preferably, the horizontal movement assembly includes two horizontal slide rails symmetrically arranged at the bottom of the gantry frame. The length direction of the horizontal slide rails is perpendicular to the axis of the floating roller, and the lower surface of the horizontal slide rails is fixedly connected to the upper surface of the base. A third slide groove is formed on the upper surface of the horizontal slide rails along their length direction. A third lead screw is rotatably arranged inside the third slide groove. One end of the third lead screw is rotatably connected to the inner wall of one side of the third slide groove through a bearing, and the other end passes through the other side surface of the third slide groove and is fixedly connected to the output end of the rotary motor. The rotary motor is fixedly mounted on the upper surface of the base through a motor mounting bracket. A third slider is threaded onto the surface of the third lead screw. The upper surface of the third slider is fixedly connected to the bottom of the gantry frame, thereby realizing the horizontal movement of the gantry frame.
[0008] Preferably, the pressure regulating component includes clamping roller structures symmetrically arranged on both sides of the melting edge component. The clamping roller structure includes a first frame, with a first clamping roller and a second clamping roller symmetrically arranged vertically on the inner side of the first frame, and the first clamping roller and the second clamping roller are parallel to the axis of the floating roller. A first linkage rod is coaxially arranged on both ends of the first clamping roller. The end of the first linkage rod away from the first clamping roller is fixedly connected to the telescopic end of a first hydraulic cylinder through a bearing. The first hydraulic cylinder is vertically arranged, and its upper fixed end is fixedly connected to the upper inner surface of the first frame. A second linkage rod is coaxially arranged on both ends of the second clamping roller. The end of the second linkage rod away from the second clamping roller is fixedly connected to the telescopic end of a second hydraulic cylinder through a bearing. The second hydraulic cylinder is vertically arranged, and its lower fixed end is fixedly connected to the upper surface of the base.
[0009] Preferably, the edge-melting assembly includes a second frame, with a horizontally opening movable groove on the upper inner surface of the second frame. The length direction of the movable groove is parallel to the axis of the clamping roller. A fourth lead screw is provided inside the movable groove. One end of the fourth lead screw is rotatably connected to the inner wall of one side of the movable groove via a bearing, and the other end passes through the other side surface of the movable groove and is connected to the output end of a third drive motor. The third drive motor is fixedly mounted on the upper part of the outer surface of the second frame via a motor retaining ring. A first movable block and a second movable block are symmetrically threaded at both ends of the surface of the fourth lead screw, and the threads of the first movable block and the second movable block have opposite directions. A hot melt knife assembly is provided on the lower surface of both the first movable block and the second movable block.
[0010] Preferably, the hot melt knife assembly includes a telescopic hydraulic cylinder and a hot melt knife. The upper end of the telescopic hydraulic cylinder is fixedly connected to the lower surface of the corresponding moving block, and a connecting plate is fixedly provided at the lower end. Magnetic connection holes are symmetrically opened at both ends of the lower surface of the connecting plate, and an induction connection groove is opened in the middle of the lower surface of the connecting plate. Magnetic connection posts that are adapted to the magnetic connection holes are opened at both ends of the upper surface of the hot melt knife, and an induction block is provided in the middle of the upper surface of the hot melt knife. The induction block is electrically connected to the heating wire inside the hot melt knife.
[0011] Preferably, a control panel is provided on one outer surface of the first frame, and the control panel is electrically connected to the first telescopic component, the second telescopic component, the third telescopic component, the tension adjustment unit, and the edge melting and cutting unit.
[0012] Therefore, the present invention employs the above-mentioned packaging bag edge-sealing machine, which has the following technical effects: (1) By setting a first telescopic component, a second telescopic component, and a third telescopic component, the present invention enables the height of the first transmission roller, the second transmission roller, and the receiving roller to be adjustable. The height of each roller can be flexibly adjusted according to the thickness and width of the packaging bag, which greatly improves the adaptability of the equipment and solves the problem of poor adaptability of existing equipment.
[0013] (2) The tension adjustment unit of the present invention adopts a dual floating roller cooperative adjustment structure, which, together with the horizontal moving component, can not only accurately adjust the tension of the material and avoid wrinkles and deviations during material transmission, but also adjust the horizontal position of the gantry and improve the quality of the melt edge.
[0014] (3) The pressure regulating component of the present invention adjusts the position of the first clamping roller and the second clamping roller by the first hydraulic cylinder and the second hydraulic cylinder respectively, which can accurately control the clamping pressure of the material, adapt to materials of different thicknesses, avoid the material being damaged due to excessive clamping or the material being deviated due to excessive clamping, and ensure the smooth transmission of materials.
[0015] (4) The edge-melting assembly of the present invention drives the first moving block and the second moving block to move relative to or towards each other through the fourth lead screw, which can flexibly adjust the distance between the two hot melt knife assemblies to adapt to the edge-melting requirements of packaging bags of different widths; at the same time, the hot melt knife assembly adopts a magnetic connection method to realize the quick disassembly and assembly of the hot melt knife, reduce the difficulty of operation, and improve the replacement efficiency.
[0016] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of a packaging bag edge-sealing machine according to the present invention; Figure 2 This is a side view of a packaging bag edge-sealing machine according to the present invention; Figure 3 This is a schematic diagram of the structure of the first telescopic component in a packaging bag edge-sealing machine according to the present invention; Figure 4 This is a schematic diagram of the tension adjustment unit in a packaging bag edge-sealing machine according to the present invention; Figure 5 This is an internal cross-sectional view of the tension adjustment unit in a packaging bag edge-sealing machine according to the present invention; Figure 6 This is a schematic diagram of the pressure regulating component in a packaging bag edge-sealing machine according to the present invention; Figure 7 This is a cross-sectional view of the edge-sealing component in a packaging bag edge-sealing machine according to the present invention; Figure 8 This is a schematic diagram of the hot melt blade structure in a packaging bag edge melting machine according to the present invention; Figure 9 This is a schematic diagram of the material conveying process of a packaging bag edge-sealing machine according to the present invention.
[0018] Figure Labels 1. Base; 2. First transfer roller; 3. Second transfer roller; 4. Tension adjustment unit; 5. Edge melting and cutting unit; 6. Take-up roller; 7. First telescopic assembly; 8. Second telescopic assembly; 9. Third telescopic assembly; 10. Gantry frame; 11. Floating roller assembly; 12. Horizontal movement assembly; 13. Pressure adjustment assembly; 14. Edge melting assembly; 15. Electric telescopic rod; 16. Rotary bearing; 17. First floating roller; 18. Second floating roller; 19. First connecting rod; 20. First slider; 21. First chute; 22. First limiting block; 23. First limiting groove; 24. First lead screw; 25. Half bevel gear assembly; 26. First drive motor; 27. Second connecting rod; 28. Second slider; 29. Second chute; 30. Second limiting block; 31. Second limiting groove 32. Second lead screw; 33. Second drive motor; 34. Horizontal slide rail; 35. Third slide groove; 36. Third lead screw; 37. Rotary motor; 38. Motor mounting base; 39. Third slider; 40. First frame; 41. First clamping roller; 42. Second clamping roller; 43. First linkage rod; 44. First hydraulic cylinder; 45. Second linkage rod; 46. Second hydraulic cylinder; 47. Second frame; 48. Moving groove; 49. Fourth lead screw; 50. Third drive motor; 51. Motor fixing ring; 52. First moving block; 53. Second moving block; 54. Hot melt knife assembly; 55. Telescopic hydraulic cylinder; 56. Hot melt knife; 57. Connecting plate; 58. Magnetic connection hole; 59. Induction connection groove; 60. Magnetic connection column; 61. Induction block; 62. Control panel. Detailed Implementation
[0019] The technical solution of the present invention will be further described below with reference to the accompanying drawings and embodiments.
[0020] Unless otherwise defined, the technical or scientific terms used in this invention shall have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms "first," "second," and similar terms used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0021] like Figures 1 to 9As shown, a packaging bag edge-sealing machine includes a base 1, which is made of high-strength steel plate to ensure the stability of the equipment operation. Along the material conveying direction, the upper surface of the base 1 is sequentially equipped with a first transmission roller 2, a second transmission roller 3, a tension adjustment unit 4, an edge-sealing and cutting unit 5, and a take-up roller 6. The first material to be bonded enters through the first transmission roller 2, and the second material to be bonded enters through the second transmission roller 3. The materials pass sequentially through the tension adjustment unit 4 and the edge-sealing and cutting unit 5, and are finally wound up by the take-up roller 6.
[0022] The first conveyor roller 2, the second conveyor roller 3, and the receiving roller 6 are fixedly connected to the base 1 via the first telescopic assembly 7, the second telescopic assembly 8, and the third telescopic assembly 9, respectively. The first telescopic assembly 7 includes electrically operated telescopic rods 15 symmetrically arranged on both sides of the first conveyor roller 2. The electric telescopic rods 15 are XTL100 electric push rods, with their lower ends fixed to the upper surface of the base 1 by bolts, and their upper ends rotatably connected to both ends of the first conveyor roller 2 via rotating bearings 16, ensuring that the first conveyor roller 2 can rotate freely and achieve stable material transport. The second telescopic assembly 8 and the third telescopic assembly 9 have the same structure as the first telescopic assembly 7 and are symmetrically arranged at both ends of the second conveyor roller 3 and the receiving roller 6, respectively. The height of the second conveyor roller 3 and the receiving roller 6 can be adjusted synchronously by extending and retracting the electric telescopic rods 15, adapting to packaging bag materials of different thicknesses.
[0023] The tension adjustment unit 4 includes a gantry frame 10, which is made of aluminum alloy profiles, making it lightweight and structurally strong. Inside the gantry frame 10 is a floating roller assembly 11 for adjusting material tension. The floating roller assembly 11 includes a first floating roller 17 and a second floating roller 18 arranged parallel to each other from top to bottom. Both the first floating roller 17 and the second floating roller 18 are made of stainless steel with smooth surfaces to prevent scratching the material.
[0024] Both ends of the first floating roller 17 are coaxially fixedly connected to a first connecting rod 19, which is welded to the first floating roller 17. The ends of the first connecting rods 19 away from the first floating roller 17 are fixedly connected to a first slider 20 by bolts. The first slider 20 is slidably embedded in the first groove 21 vertically opened on the upper part of the inner surface of both sides of the gantry frame 10. The first limit blocks 22 are symmetrically arranged on both sides of the first slider 20. The first limit blocks 22 are integrally formed with the first slider 20. The inner walls of both sides of the first groove 21 are vertically opened along their length direction with first limit grooves 23 that are adapted to the first limit blocks 22. The first limit blocks 22 are slidably embedded in the first limit grooves 23 to limit the sliding direction of the first slider 20 and prevent it from deviating during the sliding process.
[0025] A first lead screw 24 is vertically installed inside the first slide groove 21. The first lead screw 24 is a trapezoidal lead screw, which provides smooth transmission and high precision. The upper end of the first lead screw 24 is connected to the output end of the first drive motor 26 through a half-bevel gear assembly 25. The half-bevel gear assembly 25 consists of two meshing half-bevel gears to achieve the direction of power steering. The first drive motor 26 is an asynchronous motor of model Y2-132S-4, which is fixedly installed on the top of the gantry frame 10 by a motor bracket. The lower end of the first lead screw 24 is rotatably connected to the bottom of the first slide groove 21 through a bearing. The first lead screw 24 is threadedly engaged with the first threaded hole at the center of the first slider 20. When the first drive motor 26 is started, it drives the first lead screw 24 to rotate, thereby driving the first slider 20 to move vertically along the first slide groove 21, realizing the vertical lifting and lowering adjustment of the first floating roller 17.
[0026] The second floating roller 18 has a second connecting rod 27 coaxially fixed to both ends. The second connecting rod 27 is fixed to the second floating roller 18 by welding. The end of the second connecting rod 27 away from the second floating roller 18 is fixed to a second slider 28 by bolts. The second slider 28 is slidably embedded in the second slide groove 29 vertically opened at the lower part of the inner surface of both sides of the gantry frame 10. The second slider 28 has a second limiting block 30 symmetrically arranged on both sides. The second limiting block 30 is integrally formed with the second slider 28. The inner walls of both sides of the second slide groove 29 have a second limiting groove 31 vertically opened along its length direction, which is adapted to the second limiting block 30. The second limiting block 30 is slidably embedded in the second limiting groove 31.
[0027] A second lead screw 32 is vertically installed inside the second chute 29. The second lead screw 32 is of the same specification as the first lead screw 24. Its lower end is connected to the output end of the second drive motor 33 via a half-bevel gear assembly 25. The second drive motor 33 is of the same specification as the first drive motor 26 and is fixedly installed at the bottom of the gantry frame 10 via a motor bracket. The upper end of the second lead screw 32 is rotatably connected to the top of the second chute 29 via a bearing. The second lead screw 32 is threadedly engaged with the second threaded hole at the center of the second slider 28. When the second drive motor 33 starts, it drives the second lead screw 32 to rotate, thereby driving the second slider 28 to move vertically along the second chute 29, realizing the vertical lifting and lowering adjustment of the second floating roller 18. Through the coordinated lifting and lowering of the first floating roller 17 and the second floating roller 18, the tension of the material can be precisely adjusted, avoiding wrinkles and deviations during material transmission.
[0028] A horizontal moving assembly 12 is provided at the bottom of the gantry frame 10. The horizontal moving assembly 12 includes two horizontal slide rails 34 symmetrically arranged at the bottom of the gantry frame 10. The horizontal slide rails 34 are linear slide rails, and their length direction is perpendicular to the axis of the floating roller. The lower surface of the horizontal slide rails 34 is fixedly connected to the upper surface of the base 1 by bolts. A third slide groove 35 is formed on the upper surface of the horizontal slide rails 34 along its length direction. A third lead screw 36 is rotatably arranged inside the third slide groove 35. The third lead screw 36 has the same specifications as the first lead screw 24. One end of the third lead screw 36 is rotatably connected to the inner wall of one side of the third slide groove 35 by a bearing, and the other end passes through the other side surface of the third slide groove 35 and is fixedly connected to the output end of the rotating motor 37 by a coupling. The rotating motor 37 is an asynchronous motor of model Y2-90S-4, which is fixedly installed on the upper surface of the base 1 through the motor mounting bracket 38. The third lead screw 36 has a threaded engagement with the third slider 39. The upper surface of the third slider 39 is fixedly connected to the bottom of the gantry frame 10 by bolts. When the rotating motor 37 is started, it drives the third lead screw 36 to rotate, which in turn drives the third slider 39 to move horizontally along the third slide groove 35, thereby realizing the horizontal position adjustment of the gantry frame 10.
[0029] The edge-melting and cutting unit 5 includes pressure regulating components 13 symmetrically arranged along the material conveying direction, with edge-melting components 14 disposed between the pressure regulating components 13. Each pressure regulating component 13 includes clamping roller structures symmetrically arranged on both sides of the edge-melting component 14. Each clamping roller structure includes a first frame 40, which is welded from steel plates. A first clamping roller 41 and a second clamping roller 42 are symmetrically arranged vertically on the inner side of the first frame 40, and the first clamping roller 41 and the second clamping roller 42 are parallel to the axis of the floating roller. The surfaces of both the first clamping roller 41 and the second clamping roller 42 are coated with a silicone layer to prevent scratching the material and improve clamping stability.
[0030] Both ends of the first clamping roller 41 are coaxially provided with first linkage rods 43, which are fixed to the first clamping roller 41 by welding. The end of the first linkage rod 43 away from the first clamping roller 41 is fixedly connected to the telescopic end of the first hydraulic cylinder 44 through a bearing. The first hydraulic cylinder 44 is a hydraulic cylinder of model HOB63*50, which is vertically set, and its upper fixed end is fixedly connected to the upper inner surface of the first frame 40 by bolts. Both ends of the second clamping roller 42 are coaxially provided with second linkage rods 45, which are fixed to the second clamping roller 42 by welding. The end of the second linkage rod 45 away from the second clamping roller 42 is fixedly connected to the telescopic end of the second hydraulic cylinder 46 through a bearing. The second hydraulic cylinder 46 has the same specifications as the first hydraulic cylinder 44, is vertically set, and its lower fixed end is fixedly connected to the upper surface of the base 1 by bolts. By extending and retracting the first hydraulic cylinder 44 and the second hydraulic cylinder 46, the distance between the first clamping roller 41 and the second clamping roller 42 can be adjusted, thereby adjusting the clamping pressure of the material and adapting to materials of different thicknesses.
[0031] The edge-melting assembly 14 includes a second frame 47, which is welded from steel plates. A horizontal moving groove 48 is formed on the inner surface of its upper end, and the length of the moving groove 48 is parallel to the axis of the clamping roller. A fourth lead screw 49 is installed inside the moving groove 48. The fourth lead screw 49 has the same specifications as the first lead screw 24. One end of the fourth lead screw 49 is rotatably connected to the inner wall of one side of the moving groove 48 via a bearing, and the other end passes through the other side of the moving groove 48 and is fixedly connected to the output end of the third drive motor 50 via a coupling. The third drive motor 50 has the same specifications as the first drive motor 26. It is fixedly installed on the upper part of the outer surface of the second frame 47 through the motor fixing ring 51. The first moving block 52 and the second moving block 53 are symmetrically threaded at both ends of the surface of the fourth lead screw 49. The threads of the first moving block 52 and the second moving block 53 are opposite. When the third drive motor 50 is started, it drives the fourth lead screw 49 to rotate, which in turn drives the first moving block 52 and the second moving block 53 to move relative to each other or towards each other, adjusting the distance between the two hot melt knife assemblies 54 to adapt to the edge melting requirements of packaging bags of different widths.
[0032] Both the first moving block 52 and the second moving block 53 are provided with a hot melt blade assembly 54 on their lower surfaces. The hot melt blade assembly 54 includes a telescopic hydraulic cylinder 55 and a hot melt blade 56. The telescopic hydraulic cylinder 55 is a small hydraulic cylinder of model HOB32*30. Its upper end is fixedly connected to the lower surface of the corresponding moving block by bolts, and its lower end is fixedly provided with a connecting plate 57 by bolts. Magnetic attraction connection holes 58 are symmetrically opened at both ends of the lower surface of the connecting plate 57. A permanent magnet is installed in the magnetic attraction connection hole 58, and an induction connection groove 59 is opened in the middle of the lower surface of the connecting plate 57. A conductive contact is installed in the induction connection groove 59.
[0033] The hot melt blade 56 is made of copper alloy and contains a heating wire made of nickel-chromium alloy, which has high heating efficiency and long service life. Magnetic connecting posts 60, made of ferromagnetic material, are provided at both ends of the upper surface of the hot melt blade 56 to match the magnetic connecting holes 58. These posts magnetically attract and engage with the permanent magnets inside the magnetic connecting holes 58, enabling quick assembly and disassembly of the hot melt blade 56. An induction block 61, made of conductive material, is located in the center of the upper surface of the hot melt blade 56. When the hot melt blade 56 is installed, the induction block 61 contacts the conductive contacts in the induction connecting groove 59, establishing an electrical connection with the heating wire and thus controlling the on / off state of the heating wire and temperature regulation.
[0034] A control panel 62 is provided on one side of the outer surface of the first frame 40. The control panel 62 is a PLC control panel, which is electrically connected to the first telescopic component 7, the second telescopic component 8, the third telescopic component 9, the tension adjustment unit 4, and the edge melting and cutting unit 5. The operating parameters of each electric telescopic rod 15, drive motor, and hydraulic cylinder can be conveniently adjusted through the control panel 62, the operating status of the equipment can be monitored, the linkage control of each component can be realized, and the operation process can be simplified.
[0035] Working principle: First, based on the thickness and width of the packaging bag to be processed, the electric telescopic rods 15 of the first telescopic assembly 7, the second telescopic assembly 8, and the third telescopic assembly 9 are extended and retracted via the control panel 62 to adjust the height of the first transmission roller 2, the second transmission roller 3, and the receiving roller 6. Then, the first drive motor 26 and the second drive motor 33 of the tension adjustment unit 4 are adjusted to drive the first floating roller 17 and the second floating roller 18 to rise and fall, setting a suitable tension. Simultaneously, the rotation motor 37 is started to adjust the horizontal position of the gantry frame 10. Next, the first hydraulic cylinder 44 and the second hydraulic cylinder 46 of the pressure adjustment assembly 13 are adjusted to adjust the first clamping roller 41 and the second clamping roller 42. The spacing is set to a suitable clamping pressure; then, according to the width of the packaging bag, the third drive motor 50 is started, the spacing of the two hot melt blade assemblies 54 is adjusted, and a suitable hot melt blade 56 is installed by magnetic connection, and the heating temperature of the hot melt blade 56 is set; finally, the first material to be bonded is passed through the first transmission roller 2 and the first floating roller 17 in sequence; the second material to be bonded is passed through the second transmission roller 3 and the second floating roller 18 in sequence; then the first material and the second material are bonded together and passed between the first clamping roller 41 and the second clamping roller 42 and between the two hot melt blade assemblies 54, and finally wrapped around the receiving roller 6, and the equipment is started to realize the continuous edge melting processing of the packaging bag.
[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solutions of the present invention, and these modifications or equivalent substitutions cannot cause the modified technical solutions to deviate from the spirit and scope of the technical solutions of the present invention.
Claims
1. A packaging bag edge-sealing machine, characterized in that: The device includes a base, on the upper surface of which a first transmission roller, a second transmission roller, a tension adjustment unit, a melting edge cutting unit, and a receiving roller are sequentially arranged along the material conveying direction. The first transmission roller, the second transmission roller, and the receiving roller are fixedly connected to the base via a first telescopic component, a second telescopic component, and a third telescopic component, respectively. The tension adjustment unit includes a gantry frame, on the inner side of which a floating roller assembly for adjusting material tension is arranged, and a horizontal moving component is arranged at the bottom of the gantry frame. The melting edge cutting unit includes pressure adjustment components symmetrically arranged along the material conveying direction, with melting edge components arranged between the pressure adjustment components.
2. The packaging bag edge-sealing machine according to claim 1, characterized in that: The first telescopic assembly includes electrically operated telescopic rods symmetrically arranged on both sides of the first transmission roller. The lower end of the electrically operated telescopic rod is fixedly connected to the upper surface of the base, and the upper end is rotatably connected to both ends of the first transmission roller through a rotating bearing. The second telescopic assembly and the third telescopic assembly have the same structure as the first telescopic assembly and are symmetrically arranged at both ends of the second transmission roller and the receiving roller, respectively.
3. The packaging bag edge-sealing machine according to claim 2, characterized in that: The floating roller assembly includes a first floating roller and a second floating roller arranged in parallel from top to bottom. A first connecting rod is coaxially fixed to both ends of the first floating roller. A first slider is fixedly connected to the end of each first connecting rod away from the first floating roller. The first slider is slidably embedded in a first groove vertically opened on the upper part of the inner surface of both sides of the gantry. First limiting blocks are symmetrically arranged on both sides of the first slider. First limiting grooves, adapted to the first limiting blocks, are vertically opened along the length of the inner walls of both sides of the first groove to limit the sliding direction of the first slider. A first lead screw is vertically arranged inside the first groove. The upper end of the first lead screw is connected to the output end of a first drive motor via a half-bevel gear assembly, and the lower end is rotatably connected to the bottom of the first groove via a bearing. The first lead screw is threadedly engaged with a first threaded hole at the center of the first slider to achieve vertical lifting adjustment of the first floating roller. The second floating roller is coaxially fixedly connected to two ends of a second connecting rod. The end of the second connecting rod away from the second floating roller is fixedly connected to a second slider. The second slider is slidably embedded in the second groove vertically opened at the lower part of the inner surface of both sides of the gantry. The second slider is symmetrically provided with second limiting blocks on both sides. The inner wall of both sides of the second groove is vertically opened with second limiting grooves that are adapted to the second limiting blocks along its length. The second groove is vertically provided with a second lead screw. The lower end of the second lead screw is connected to the output end of the second drive motor through a half bevel gear assembly. The upper end is rotatably connected to the top of the second groove through a bearing. The second lead screw is threadedly engaged with the second threaded hole opened at the center of the second slider to realize the vertical lifting and lowering adjustment of the second floating roller.
4. The packaging bag edge-sealing machine according to claim 3, characterized in that: The horizontal movement assembly includes two horizontal slide rails symmetrically arranged at the bottom of the gantry frame. The length direction of the horizontal slide rails is perpendicular to the axis of the floating roller, and the lower surface of the horizontal slide rails is fixedly connected to the upper surface of the base. A third slide groove is formed on the upper surface of the horizontal slide rails along their length direction. A third lead screw is rotatably installed inside the third slide groove. One end of the third lead screw is rotatably connected to the inner wall of one side of the third slide groove via a bearing, and the other end passes through the other side surface of the third slide groove and is fixedly connected to the output end of a rotary motor. The rotary motor is fixedly mounted on the upper surface of the base via a motor mounting bracket. A third slider is threaded onto the surface of the third lead screw. The upper surface of the third slider is fixedly connected to the bottom of the gantry frame, thereby realizing the horizontal movement of the gantry frame.
5. A packaging bag edge-sealing machine according to claim 4, characterized in that: The pressure regulating assembly includes clamping roller structures symmetrically arranged on both sides of the melting edge assembly. Each clamping roller structure includes a first frame. A first clamping roller and a second clamping roller are symmetrically arranged vertically on the inner side of the first frame, and the first and second clamping rollers are parallel to the axis of the floating roller. A first linkage rod is coaxially arranged on both ends of the first clamping roller. The end of the first linkage rod away from the first clamping roller is fixedly connected to the telescopic end of a first hydraulic cylinder via a bearing. The first hydraulic cylinder is vertically arranged, and its upper fixed end is fixedly connected to the upper inner surface of the first frame. A second linkage rod is coaxially arranged on both ends of the second clamping roller. The end of the second linkage rod away from the second clamping roller is fixedly connected to the telescopic end of a second hydraulic cylinder via a bearing. The second hydraulic cylinder is vertically arranged, and its lower fixed end is fixedly connected to the upper surface of the base.
6. The packaging bag edge-sealing machine according to claim 5, characterized in that: The edge-melting assembly includes a second frame. A moving groove is horizontally formed on the inner surface of the upper end of the second frame. The length direction of the moving groove is parallel to the axis of the clamping roller. A fourth lead screw is provided inside the moving groove. One end of the fourth lead screw is rotatably connected to the inner wall of one side of the moving groove through a bearing, and the other end passes through the other side surface of the moving groove and is connected to the output end of a third drive motor. The third drive motor is fixedly installed on the upper part of the outer surface of the second frame through a motor fixing ring. A first moving block and a second moving block are symmetrically threaded at both ends of the surface of the fourth lead screw, and the threads of the first moving block and the second moving block have opposite directions. A hot melt knife assembly is provided on the lower surface of both the first moving block and the second moving block.
7. A packaging bag edge-sealing machine according to claim 6, characterized in that: The hot melt knife assembly includes a telescopic hydraulic cylinder and a hot melt knife. The upper end of the telescopic hydraulic cylinder is fixedly connected to the lower surface of the corresponding moving block, and a connecting plate is fixedly installed at the lower end. Magnetic connection holes are symmetrically opened at both ends of the lower surface of the connecting plate, and an induction connection groove is opened in the middle of the lower surface of the connecting plate. Magnetic connection posts that match the magnetic connection holes are opened at both ends of the upper surface of the hot melt knife, and an induction block is installed in the middle of the upper surface of the hot melt knife. The induction block is electrically connected to the heating wire inside the hot melt knife.
8. The packaging bag edge-sealing machine according to claim 7, characterized in that: A control panel is provided on one outer surface of the first frame, and the control panel is electrically connected to the first telescopic component, the second telescopic component, the third telescopic component, the tension adjustment unit, and the edge melting and cutting unit.