A bag making machine

Abstract

This invention relates to a bag-making machine, which includes a winding mechanism, a bag-making mechanism, a side-sealing mechanism, a cutting mechanism, and a bag-clamping robot arranged sequentially. The bag-clamping robot includes a drive shaft assembly, a fixed base, a moving arm, and a driven component. The drive shaft assembly includes a first drive shaft, a second drive shaft, and a third drive shaft. A power component is provided on the fixed base. The drive shaft assembly is rotatably mounted on the fixed base and is drivenly connected to the power component. The moving arm is connected to the first drive shaft. The second and third drive shafts are rotatably mounted on the moving arm. The driven component is rotatably mounted on the moving arm and includes a first driven member and a second driven member. The first driven member is drivenly connected to the second drive shaft, and the second driven member is drivenly connected to the third drive shaft. The first driven member is connected to a first clamping arm, and the first clamping arm is connected to a first clamping plate. The second driven member is connected to a second clamping arm, and the second clamping arm is connected to a second clamping plate. The bag-clamping robot transfers a single bag.

Description

Technical Field

[0001] This invention relates to a bag-making machine. Background Technology

[0002] Chinese invention patent with publication number CN120589264A discloses a fully automatic bag-feeding and packaging machine. Pre-stacked packaging bags are automatically fed onto the clamping member 12 on the rotating disk 11 through the bag-feeding component 2. Then, the rotating disk 11 drives the clamping member 12 holding the packaging bags to rotate. Based on this, it is proposed to design a bag-making machine and a packaging machine to form an integrated bag-making and packaging machine, which eliminates the need for manual transfer of stacked packaging bags. Summary of the Invention

[0003] In view of the technical problems existing in the background art, the present invention aims to provide a bag making machine, wherein an unwinding mechanism provides continuous roll material, a bag making mechanism folds the continuous roll material in half, a side sealing mechanism seals the continuous roll material to form a continuous roll bag body, and a bag mouth clamping robot transfers the single bag body cut off by the cutting mechanism.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: This bag-making machine includes, in sequence, an unwinding mechanism, a bag-making mechanism, a side-sealing mechanism, a cutting mechanism, and a bag-clamping robot. The bag-clamping robot is connected to the cutting mechanism. The unwinding mechanism provides continuously rolled material. During the conveying process of the continuously rolled material, the bag-making mechanism gradually lifts both sides of the rolled material until it is folded in half to form a preliminary bag shape. The side-sealing mechanism seals the preliminary bag shape to form an unsealed continuously rolled bag. The cutting mechanism cuts the continuously rolled bag into individual packaging bags. The bag-clamping robot includes a drive shaft assembly, a fixed base, a moving arm, and a driven component. The drive shaft assembly includes a first drive shaft, a second drive shaft, and a third drive shaft. The second drive shaft is sleeved outside the third drive shaft. The first drive shaft is sleeved outside the second drive shaft. A power assembly is provided on the fixed base. The drive shaft assembly is rotatably mounted on the fixed base and is drive-connected to the power assembly. The moving arm is connected to the first drive shaft. The second drive shaft and the third drive shaft are both rotatably mounted on the moving arm. The driven assembly is rotatably mounted on the moving arm. The driven assembly includes a first driven member and a second driven member. The first driven member is drive-connected to the second drive shaft, and the second driven member is drive-connected to the third drive shaft. The first driven member is connected to a first clamping arm, and the first clamping arm is connected to a first clamping plate. The second driven member is connected to a second clamping arm, and the second clamping arm is connected to a second clamping plate.

[0005] In this scheme, the unwinding mechanism provides continuous roll material, the bag making mechanism gradually lifts up both sides of the continuous roll material until it is folded in half, the side sealing mechanism seals the continuous roll material to form a continuous roll bag body, the driven component rotates in the opposite direction, the first clamping plate and the second clamping plate clamp the bag opening position, the first drive shaft rotates, and the bag opening clamping robot transfers the single bag body cut off by the cutting mechanism.

[0006] Preferably, the power assembly includes a rotary motor, a first motor, and a second motor. The rotary motor is driven to the first drive shaft, the first motor is driven to the second drive shaft, and the second motor is driven to the third drive shaft. Both the first clamping plate and the second clamping plate have an avoidance state and a bag clamping state. The first clamping plate and the second clamping plate swing in the same direction to switch between the avoidance state and the bag clamping state.

[0007] In this scheme, the second and third drive shafts are driven by independent power sources, so that the second and third drive shafts can rotate in the same direction during the bag loading process, and the first and second clamping plates swing in the same direction to keep the bag clamped and avoid the clamping parts at the packaging machine.

[0008] Preferably, both the second drive shaft and the third drive shaft are connected to a drive gear, the drive gear meshes with an intermediate gear, the first driven member and the second driven member both have a driven tooth segment, the driven tooth segment meshes with the intermediate gear, the intermediate gear has more teeth than the drive gear, the number of teeth of the drive gear is equal to the number of teeth of the driven tooth segment, the intermediate gear is coaxially arranged, and the driven component is located below the drive shaft assembly.

[0009] In this design, during the swing of the moving arm, the intermediate gear rotates around the driving gear, which drives the corresponding driven part to rotate. The diameters of the driving gear and the driven tooth segment are equal, and the rotation angle of the driven tooth segment is equal to the swing angle of the moving arm, keeping the bag body in a vertical state.

[0010] Preferably, the bag-making mechanism includes an inclined folding plate, the folding plate having a first side line and a second side line on its left and right sides, the first side line and the second side line forming an angle, and the folding plate being adjustable in height.

[0011] In this scheme, the height of the bag is adjusted based on the bag opening, and the lifting and adjusting plate changes the position of the bottom of the bag. The two sides of the roll are folded up along the first and second side lines.

[0012] Preferably, the rear end of the folding plate is hinged to a connecting block, the connecting block is connected to an adjusting screw, the adjusting screw extends vertically, the adjusting screw is threadedly engaged with an adjusting plate, the adjusting screw is rotatably mounted on a mounting plate, the mounting plate is connected to the adjusting plate and located above the adjusting plate, the adjusting plate is slidably mounted on a mounting frame, and the front end of the folding plate is hinged to a pull rod, the other end of the pull rod being hinged to the mounting plate.

[0013] In this scheme, the adjustment plate is moved left and right to center the folding plate relative to the continuous coil material. The adjustment screw is rotated to drive the folding plate to rise and fall through the connecting block. The pull rod works with the connecting block to support the folding plate.

[0014] Preferably, a receiving component, a tension control component, and a pulling component are sequentially arranged between the unwinding mechanism and the bag making mechanism. The tension control component is used to maintain a constant tension of the continuous roll material, the pulling component is used to pull the continuous roll material, and a punching component is arranged between the tension control component and the pulling component.

[0015] In this scheme, the receiving component receives the material during the roll changing process, maintaining production continuity.

[0016] Preferably, the edge sealing mechanism includes a bottom sealing assembly, a side sealing assembly, and a cooling and shaping assembly. Each of the bottom sealing assembly, the side sealing assembly, and the cooling and shaping assembly includes a fixed platform and a movable platform. The movable platform is movably mounted on the fixed platform. The movable platform includes a first upright plate and a second upright plate. A movable plate that moves left and right is provided on the movable platform. The movable plate is located between the first upright plate and the second upright plate. Both the first upright plate and the movable plate are connected to pressure plates. A transmission rod is rotatably mounted on the fixed platform. The transmission rod is hinged to a first connecting rod and a second connecting rod, respectively, and its vertical rotation center is located between the hinge points. The first connecting rod and the second connecting rod are hinged to the second upright plate and the movable plate, respectively.

[0017] In this scheme, the transmission rod rotates, and the first connecting rod and the second connecting rod push and pull the moving platform and the moving plate respectively. The moving platform moves to the right relative to the fixed platform, and the moving plate moves to the left relative to the moving platform. The pressure plate connected to the first upright plate and the moving plate presses together, and the pressure is sufficient.

[0018] Preferably, the fixed platform is movable back and forth on the machine base, the fixed platform is connected to a guide block, the guide block is slidably fitted with a guide rail, the guide rail is set on the machine base, the machine base is provided with a movable seat that can move back and forth, the movable seat is provided with a telescopic insertion shaft, and the fixed platform is provided with an insertion hole for the insertion shaft to be inserted.

[0019] In this design, the insert shaft is inserted into the insertion hole, and the movable seat drives the fixed platform to move back and forth for adjustment.

[0020] Preferably, it further includes two sets of traction components, with the bottom sealing component, the side sealing component and the cooling and shaping component located between the two sets of traction components. The traction component includes a conveying roller group and a guide plate group, which are arranged vertically in an alternating manner. The guide plate group forms an open feed port. A punching component is also provided between the traction component and the cooling and shaping component.

[0021] In this scheme, the guide plate group keeps the bag vertical, and the drive roller group actively conveys the bag backward.

[0022] Preferably, the cutting mechanism is adjustable to move back and forth relative to the bag-clamping robot. The cutting mechanism includes a cutting component and a guide plate. The cutting component includes a cutter and a bottom cutter. The cutter is adjustable to move left and right relative to the bottom cutter. The guide plate is disposed on the feed side and the discharge side of the cutting component. The two guide plates on the feed side are provided with guide portions at intervals, and the guide portions of the two guide plates form an open feed port.

[0023] In this scheme, the guide plate receives the continuous roll material from the traction assembly, keeps the bag vertical, and the cutter moves to the right to cooperate with the bottom cutter to complete the cutting.

[0024] The beneficial effects of this invention are as follows: the unwinding mechanism provides continuous roll material, the bag-making mechanism folds the continuous roll material in half, the side-sealing mechanism seals the continuous roll material to form a continuous roll bag body, the driven component rotates in the opposite direction, the first clamping plate and the second clamping plate clamp the bag opening position, the first drive shaft rotates, and the bag-clamping robot transfers the single bag body cut by the cutting mechanism. Therefore, this invention has substantial features and progress compared with the prior art. Attached Figure Description

[0025] The following description, in conjunction with the accompanying drawings, details the embodiments and working principles of the present invention.

[0026] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0027] Figure 2 This is a three-dimensional structural diagram of the bag-clamping robot in this invention.

[0028] Figure 3 This is a cross-sectional view of the drive shaft assembly in this invention.

[0029] Figure 4 This is a cross-sectional view of the driven component in this invention.

[0030] Figure 5 This is a three-dimensional structural diagram of the mobile arm in this invention.

[0031] Figure 6 This is a three-dimensional structural diagram of the power component in this invention.

[0032] Figure 7 This is a three-dimensional structural diagram of the first and second clamping plates in this invention.

[0033] Figure 8 This is a three-dimensional structural diagram of the bag-making mechanism in this invention.

[0034] Figure 9 This is a three-dimensional structural diagram of the bottom sealing component in this invention.

[0035] Figure 10 This is a three-dimensional structural diagram of the machine tool in this invention.

[0036] Figure 11 This is a three-dimensional structural diagram of the movable seat in this invention.

[0037] Figure 12 This is a three-dimensional structural diagram of the fixed platform in this invention.

[0038] Figure 13 This is a three-dimensional structural diagram of the linkage frame in this invention.

[0039] Figure 14 This is a three-dimensional structural diagram of the traction component in this invention.

[0040] Figure 15 This is a three-dimensional structural diagram of the cutting mechanism in this invention.

[0041] Figure 16 This is a three-dimensional structural diagram of the guide portion in this invention.

[0042] In the diagram: 1. Unwinding mechanism; 2. Bag making mechanism; 3. Side sealing mechanism; 4. Cutting mechanism; 5. Bag opening clamping robot; 6. Drive shaft assembly; 7. First drive shaft; 8. Second drive shaft; 9. Third drive shaft; 10. Fixed base; 11. Power assembly; 12. Moving arm; 13. Driven assembly; 14. First driven component; 15. Second driven component; 16. First clamping arm; 17. First clamping plate; 18. Second clamping arm; 19. Second clamping plate; 20. Rotary motor; 21. First motor; 22. Second motor; 23. Drive gear; 24. Intermediate gear; 25. Driven gear segment; 26. Folding plate; 27. Connecting block; 28. Adjusting screw; 29. ​​Mounting plate; 30. Adjusting plate; 31. Mounting frame; 32. Pull rod; 33. Material receiving assembly; 34. Tension control assembly; 35. Material pulling assembly; 36. Perforation assembly; 7. Bottom sealing assembly; 38. Side sealing assembly; 39. Re-sealing assembly; 40. Cooling and shaping assembly; 41. Fixed platform; 42. Moving platform; 43. First upright plate; 44. Second upright plate; 45. Moving plate; 46. Pressure plate; 47. Transmission rod; 48. First connecting rod; 49. Second connecting rod; 50. Guide block; 51. Guide rail; 52. Machine base; 53. Moving base; 54. Insert shaft; 55. Long slot; 56. Insert 57. Hole; 58. Traction assembly; 59. Conveyor roller assembly; 60. Guide plate assembly; 61. Punching assembly; 62. Cutting assembly; 63. Guide plate; 64. Cutting knife; 65. Bottom knife; 66. Guide part; 67. Support sleeve; 68. Pad plate; 69. Connecting plate; 70. Cover; 71. Through groove; 72. Slide groove; 73. Roller; 74. Linkage frame; 75. Drive shaft; 76. First vertical shaft; 77. Second vertical shaft. Detailed Implementation

[0043] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the implementation of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0044] In the description of this application, it should be understood that the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0045] In the description of this application, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated.

[0046] See appendix Figure 1-3 In this embodiment, a bag-making machine includes a winding mechanism 1, a bag-making mechanism 2, a side-sealing mechanism 3, a cutting mechanism 4, and a bag-clamping robot 5 arranged sequentially. The bag-clamping robot 5 is connected to the cutting mechanism 4. The winding mechanism 1 provides continuous rolled material. During the continuous material conveying process, the bag-making mechanism 2 gradually lifts the two sides of the continuous rolled material until it is folded to form a bag body prototype. The side-sealing mechanism 3 seals the bag body prototype to form an unsealed continuous rolled bag body. The cutting mechanism 4 cuts the continuous rolled bag body into individual packaging bags. The bag-clamping robot 5 includes a drive shaft assembly 6, a fixed base 10, a moving arm 12, and a driven component 13. The drive shaft assembly 6 includes a first drive shaft 7, a second drive shaft 8, and a third drive shaft 9. The second drive shaft 8 is sleeved outside the third drive shaft 9, and the first drive shaft 7 is sleeved outside the second drive shaft 8.

[0047] See appendix Figure 6 The fixed base 10 is provided with a power assembly 11, which includes a rotary motor 20, a first motor 21 and a second motor 22. The rotary motor 20 is driven by the first drive shaft 7, the first motor 21 is driven by the second drive shaft 8, and the second motor 22 is driven by the third drive shaft 9. The drive shaft assembly 6 is rotatably mounted on the fixed base 10.

[0048] See appendix Figure 3 The movable arm 12 is connected to the first drive shaft 7, and the second drive shaft 8 and the third drive shaft 9 are both rotatably mounted on the movable arm 12.

[0049] See appendix Figure 4-5 7. The driven assembly 13 is rotatably mounted on the moving arm 12. The driven assembly 13 is located below the drive shaft assembly 6. The driven assembly 13 includes a first driven member 14 and a second driven member 15. Both the second drive shaft 8 and the third drive shaft 9 are connected to a drive gear 23. The drive gear 23 meshes with an intermediate gear 24. Both the first driven member 14 and the second driven member 15 have driven tooth segments 25, which mesh with the intermediate gear 24. The number of teeth is greater than that of the driving gear 23. The intermediate gear 24 is coaxially arranged. The first driven member 14 is connected to the first clamping arm 16. The first clamping arm 16 is connected to the first clamping plate 17. The second driven member 15 is connected to the second clamping arm 18. The second clamping arm 18 is connected to the second clamping plate 19. Both the first clamping plate 17 and the second clamping plate 19 have a clearance state and a bag clamping state. The first clamping plate 17 and the second clamping plate 19 swing in the same direction to switch between the clearance state and the bag clamping state.

[0050] In this embodiment, when clamping the packaging bag, the first motor 21 and the second motor 22 drive the second drive shaft 8 and the third drive shaft 9 to rotate in opposite directions, and the first clamping plate 17 and the second clamping plate 19 swing in opposite directions; when loading the bag, the rotating motor 20 drives the first drive shaft 7 to rotate, causing the moving arm 12 to swing, while the first motor 21 and the second motor 22 drive the second drive shaft 8 and the third drive shaft 9 to rotate in the same direction, and the first clamping plate 17 and the second clamping plate 19 swing in the same direction to avoid the clamping parts at the vacuum packaging machine; during the bag loading process, the intermediate gear 24 rotates around the drive gear 23, causing the driven gear segment 25 to rotate, and the first clamping plate 17 and the second clamping plate 19 swing in the same direction to cause the bag body to swing, which counteracts the bag body offset caused by the swing of the moving arm 12.

[0051] Among them, the bag-clamping robot 5 connects the cutting mechanism 4 and the packaging mechanism of the vacuum packaging machine. The packaging mechanism is a mature technology. The transmission form of the drive shaft group 6 and the power component 11 can be a drive arm, a driven arm and a connecting rod. The connecting rod is hinged to the drive arm and the driven arm respectively. The drive arm and the driven arm are connected to the drive shaft group 6 and the power component 11 respectively. It can also be in the form of a synchronous pulley and synchronous belt.

[0052] Bearings are installed between the shafts to reduce friction, and a support sleeve 66 is installed on the fixed seat 10 to support the first drive shaft 7; the first clamping plate 17 is detachably connected to the pad 67, and the pad 67 can be replaced to adapt to different bag thicknesses.

[0053] The first clamping arm 16 and the second clamping arm 18 are offset in the axial direction, so the first clamping plate 17 and the second clamping plate 19 are axially extended relative to the corresponding clamping arms, so that the two can be clamped together, and the clamping plates and clamping arms can be set as one piece.

[0054] The linear velocity of the driven component 13 and the linear velocity of the intermediate gear 24 rotating around the driving gear 23 are assumed to have uniform tooth backlash. The diameter of the driven tooth segment 25 is equal to the diameter of the driving gear 23. The same circumferential distance corresponds to the same angle. Therefore, the angle at which the driven component 13 drives the corresponding clamping plate to swing is equal to the angle at which the moving arm 12 drives the intermediate gear 24 to rotate around the driving gear 23. The driven component can be an incomplete gear with the clamping arm connected to the toothless part, or it can be a complete gear with the clamping arm connected to the side, or it can be a gear shaft with the driven components sleeved together and the clamping arm connected to the shaft.

[0055] The movable arm 12 is provided with a connecting plate 68 and a cover 69. The connecting plate 68 and the cover 69 form an inner cavity. The driving gear 23, the intermediate gear 24 and the driven gear segment 25 are disposed in the inner cavity, which is waterproof and dustproof. The movable arm 12 is provided with a through groove 70. One side of the groove wall of the through groove 70 is provided with a first mounting hole for the second driven member 15 to pass through, and the other side of the groove wall of the through groove 70 is provided with a second mounting hole for the first driven member 14 and the second driven member 15 to pass through, which supports both ends of the driven assembly 13.

[0056] In other alternative implementations, a cylinder can be used as the power source.

[0057] See appendix Figure 8 The bag-making mechanism 2 includes an inclined folding plate 26. The folding plate 26 has a first side line and a second side line on its left and right sides, forming an angle. A connecting block 27 is hinged to the rear end of the folding plate 26. An adjusting screw 28 is connected to the connecting block 27. The adjusting screw 28 extends vertically and is threadedly engaged with an adjusting plate 30. The adjusting screw 28 is rotatably mounted on a mounting plate 29. The mounting plate 29 is connected to the adjusting plate 30 and is located above the adjusting plate 30. The adjusting plate 30 is movably adjusted on a mounting frame 31. A pull rod 32 is hinged to the front end of the folding plate 26, and the other end of the pull rod 32 is hinged to the mounting plate 29.

[0058] In this embodiment, when the height of the bag changes, rotating the adjusting screw 28 causes the folding plate 26 to rise or fall via the connecting block 27, and the pull rod 32 swings to adapt.

[0059] The mounting frame 31 is equipped with a motor and a slide rail. The adjusting plate 30 is equipped with a slider that slides with the slide rail. The motor is connected to a screw, which is threaded with a nut. The nut is connected to the adjusting plate 30. The adjusting screw 28 is also threaded with the adjusting nut. The adjusting nut is connected to the adjusting plate 30. The mounting frame 31 is equipped with a sensor to monitor the height of the two sides of the continuous coil material. The controller controls the motor to drive the screw based on the height difference, which in turn moves the adjusting plate 30 left and right.

[0060] The rear end of the folding plate 26 is also provided with an insert bottom plate that is inclined relative to the folding plate 26 to form a self-standing bag. The lifting adjustment of the mounting seat is set below the folding plate 26, and the front and rear movement adjustment of the adjustment block is set on the mounting seat. The rear end of the insert bottom plate is hinged to the adjustment block, and the front end is hinged to the connecting rod. The other end of the connecting rod is slidably positioned and connected to the adjustment block. The adjustment connecting rod can change the inclination of the insert bottom plate. The mounting frame 31 is connected to the guide rod to guide the folded continuous roll material.

[0061] See appendix Figure 1 Between the unwinding mechanism 1 and the bag making mechanism 2, a receiving component 33, a tension control component 34, and a pulling component 35 are sequentially arranged. The tension control component 34 is used to maintain a constant tension of the continuous roll material, and the pulling component 35 is used to pull the continuous roll material. A punching component 36 is arranged between the tension control component 34 and the pulling component 35.

[0062] In this embodiment, the unwinding mechanism 1 includes an air shaft, and a pressure plate 46 is set to press the air shaft to adjust the tension of the continuous roll material. The tension control component 34 is a mature technology. A laser marking machine is also set after the punching component 36. The material pulling component 35 includes a traction roller and a guide roller. The traction roller is connected to the motor drive. The punching component 36 is used to form hanging holes. The material receiving component 35 includes a pneumatic pressure plate and a manual pressure plate. The unwinding roll diameter is monitored by a sensor. If the roll diameter is too small, the pneumatic pressure plate presses down on the material strip. After cutting, the material roll is replaced, and the new material strip is bonded to the old material strip with adhesive tape.

[0063] See appendix Figure 1 , 9 The edge sealing mechanism 3 includes a bottom sealing assembly 37, a side sealing assembly 38, and a cooling and shaping assembly 40. Each of the bottom sealing assembly 37, the side sealing assembly 38, and the cooling and shaping assembly 40 includes a fixed platform 41 and a movable platform 42. The movable platform 42 is movably mounted on the fixed platform 41. The movable platform 42 includes a first upright plate 43 and a second upright plate 44. A movable plate 45 that moves left and right is provided on the movable platform 42. The movable plate 45 is located between the first upright plate 43 and the second upright plate 44. Both the first upright plate 43 and the movable plate 45 are connected to pressure plates 46. A transmission rod 47 is rotatably mounted on the fixed platform 41. The transmission rod 47 is hinged to a first connecting rod 48 and a second connecting rod 49 respectively, and its vertical rotation center is located between the hinge points. The first connecting rod 48 and the second connecting rod 49 are hinged to the second upright plate 44 and the movable plate 45 respectively.

[0064] See appendix Figure 10-12 The fixed platform 41 is movably mounted on the machine base 52. The fixed platform 41 is connected to a guide block 50. The guide block 50 is slidably fitted with a guide rail 51. The guide rail 51 is mounted on the machine base 52. The machine base 52 is provided with a movable seat 53 that moves back and forth. The movable seat 53 is provided with a telescopic insertion shaft 54. The fixed platform 41 is provided with an insertion hole 56 for the insertion shaft 54 ​​to be inserted.

[0065] In this embodiment, the transmission rod 47 rotates. Since the rotation center is located between the hinge points, the upper hinge point is displaced to the left, and the lower hinge point is displaced to the right. Through the first connecting rod 48 and the second connecting rod 49, the moving table 42 moves to the right and the moving plate 45 moves to the left, and the pressure plate 46 presses together.

[0066] When the width of the bag changes, the insertion shaft 54 ​​is inserted into the insertion hole 56, and the moving seat 53 drives the fixed table 41 to move back and forth. After moving into place, it is locked. The locking is a mature technology. The moving seat 53 is set on the synchronous belt, and the insertion shaft 54 ​​is driven by the cylinder to extend and retract. The moving seat 53 is also connected to the slider. The slider slide rail slides and guides. A scale is also set on the machine 52 for the operator to observe. When the height of the bag changes, the pressure plate 46 of the bottom sealing assembly 37 is raised and lowered.

[0067] There are two transmission rods 47, with their ends hinged to both ends of a connecting rod. A cylinder is hinged to the middle of the connecting rod, and the cylinder is connected to a support shaft. The cylinder acts as an elastic element. The support shaft is hinged to the middle of the swing arm. The swing arm is mounted on a fixed platform 41, and rollers 72 are installed at the ends of the swing arm. (See attached diagram) Figure 13 Multiple rollers 72 are slidably fitted with grooves 71, and the forward and backward movement adjustment will not affect the sliding fit. The grooves 71 are set on the linkage frame 73, which is connected to the rotating shaft through a swing arm. The rotating shaft is connected to a connecting rod, which is hinged to another connecting rod. The other connecting rod is hinged to the swing arm, which is connected to the drive shaft 74. The drive shaft 74 is driven by a motor. One motor is used as the power source to complete the bottom sealing, side sealing, and cooling shaping. The first upright plate 43 is swayed and set on the moving table 42 for easy installation. A re-sealing component 3 is also set to repeat the side sealing to ensure the side sealing effect. The sealing edge formed by the side sealing component 2 is cut into the side edges of two bags. The moving seat 53 can be set below the fixed table 41. The machine table 52 is provided with a long hole 55 for the insertion shaft to pass through. It can also be set on either side of the fixed table 41.

[0068] See appendix Figure 1 , 14 It also includes two sets of traction components 57. The bottom sealing component 37, the side sealing component 38 and the cooling and shaping component 40 are located between the two sets of traction components 57. The traction component 57 includes a conveying roller group 58 and a guide plate group 59. The conveying roller group 58 and the guide plate group 59 are arranged vertically and staggered. The guide plate group 59 forms an open feed port. A punching component 60 is also provided between the traction component 57 and the cooling and shaping component 40.

[0069] In this embodiment, the guide plate group 59 is installed on the strip, and the conveyor roller group 58 is respectively installed on the first vertical shaft 75 and the second vertical shaft 76. The first vertical shaft 75 is directly connected to the motor, and the first vertical shaft 75 and the second vertical shaft 76 are driven by gear meshing. The second vertical shaft 76 is connected to the rotating shaft through the swing arm. The rotating shaft is rotatably mounted on the flip plate, and the flip plate is oscillating. During installation, the flip plate oscillates into place, and then the handle drives the rotating shaft to rotate, which drives the second vertical shaft 76 to oscillate through the swing arm, thus completing the installation. The punching assembly 60 is used to punch out the rounded corners of the four corners of the bag body and to shape it.

[0070] See appendix Figure 15-16The cutting mechanism 4 is adjustable to move back and forth relative to the bag-clamping robot 5. The cutting mechanism 4 includes a cutting component 61 and a guide plate 62. The cutting component 61 includes a cutter 63 and a bottom cutter 64. The cutter 63 is adjustable to move left and right relative to the bottom cutter 64. The guide plate 62 is disposed on the feeding side and the discharging side of the cutting component 61. The two guide plates 62 on the feeding side are provided with guide portions 65 at intervals, and the guide portions 65 of the two guide plates 62 form an open feeding port.

[0071] In this embodiment, the cutter 63 moves to the right and cooperates with the bottom cutter 64 to complete the cutting. The cutting can be done at a fixed time interval, or a sensor can be set to identify the mark and cut according to the mark. When the width of the bag changes, the bag-clamping robot 5 moves the cutting mechanism 4 back and forth. The cutting mechanism 4 is set to move back and forth through a slider and a slide rail.

[0072] The above description represents the preferred embodiments of the present invention. It should be noted that the scope of protection of the present invention is not limited thereto. For those skilled in the art, various improvements, modifications, or equivalent substitutions can be made without departing from the equivalent inventive concept disclosed in the present invention, and these modifications and substitutions are also considered to be within the scope of protection of the present invention.

Claims

1. A bag-making machine, characterized in that: The system includes, in sequence, an unwinding mechanism (1), a bag-making mechanism (2), a side-sealing mechanism (3), a cutting mechanism (4), and a bag-clamping robot (5). The bag-clamping robot (5) is connected to the cutting mechanism (4). The unwinding mechanism (1) provides continuous roll material. The bag-making mechanism (2) gradually lifts both sides of the continuous roll material during the continuous material conveying process until it is folded in half to form a bag body prototype. The side-sealing mechanism (3) seals the bag body prototype to form an unsealed continuous roll bag body. The cutting mechanism (4) cuts the continuous roll bag body into individual packaging bags. The bag-clamping robot (5) includes... The drive shaft assembly (6) includes a first drive shaft (7), a second drive shaft (8) and a third drive shaft (9), wherein the second drive shaft (8) is sleeved outside the third drive shaft (9) and the first drive shaft (7) is sleeved outside the second drive shaft (8); A fixed base (10) is provided with a power assembly (11). The drive shaft assembly (6) is rotatably mounted on the fixed base (10). The drive shaft assembly (6) is connected to the power assembly (11) in a transmission manner. A movable arm (12) is connected to the first drive shaft (7), and the second drive shaft (8) and the third drive shaft (9) are rotatably mounted on the movable arm (12); Driven assembly (13) is rotatably mounted on the moving arm (12). The driven assembly (13) includes a first driven member (14) and a second driven member (15). The first driven member (14) is drivenly connected to the second drive shaft (8), and the second driven member (15) is drivenly connected to the third drive shaft (9). The first driven member (14) is connected to a first clamping arm (16), and the first clamping arm (16) is connected to a first clamping plate (17). The second driven member (15) is connected to a second clamping arm (18), and the second clamping arm (18) is connected to a second clamping plate (19). The power assembly (11) includes a rotary motor (20), a first motor (21) and a second motor (22). The rotary motor (20) is driven by the first drive shaft (7), the first motor (21) is driven by the second drive shaft (8), and the second motor (22) is driven by the third drive shaft (9). The first clamping plate (17) and the second clamping plate (19) both have a clearance state and a bag clamping state. The first clamping plate (17) and the second clamping plate (19) swing in the same direction to switch between the clearance state and the bag clamping state.

2. The bag-making machine as described in claim 1, characterized in that: The second drive shaft (8) and the third drive shaft (9) are both connected to a drive gear (23), the drive gear (23) meshes with an intermediate gear (24), the first driven member (14) and the second driven member (15) both have a driven tooth segment (25), the driven tooth segment (25) meshes with the intermediate gear (24), the intermediate gear (24) has more teeth than the drive gear (23), the intermediate gear (24) is coaxially arranged, and the driven component (13) is located below the drive shaft group (6).

3. The bag-making machine as described in claim 1, characterized in that: The bag-making mechanism (2) includes an inclined folding plate (26), which has a first side line and a second side line on its left and right sides. The first side line and the second side line form an angle, and the folding plate (26) is adjustable in height.

4. A bag-making machine as described in claim 3, characterized in that: The rear end of the folding plate (26) is hinged to a connecting block (27), and the connecting block (27) is connected to an adjusting screw (28). The adjusting screw (28) extends vertically and is threadedly engaged with the adjusting plate (30). The adjusting screw (28) is rotatably mounted on the mounting plate (29). The mounting plate (29) is connected to the adjusting plate (30) and located above the adjusting plate (30). The adjusting plate (30) is adjusted left and right on the mounting frame (31). The front end of the folding plate (26) is hinged to a pull rod (32), and the other end of the pull rod (32) is hinged to the mounting plate (29).

5. A bag-making machine as described in claim 1, characterized in that: Between the unwinding mechanism (1) and the bag making mechanism (2), a receiving component (33), a tension control component (34), and a pulling component (35) are arranged in sequence. The tension control component (34) is used to maintain the tension of the continuous roll material. The pulling component (35) is used to pull the continuous roll material. A punching component (36) is arranged between the tension control component (34) and the pulling component (35).

6. A bag-making machine as described in claim 1, characterized in that: The side sealing mechanism (3) includes a bottom sealing assembly (37), a side sealing assembly (38), and a cooling and shaping assembly (40). Each of the bottom sealing assembly (37), the side sealing assembly (38), and the cooling and shaping assembly (40) includes a fixed platform (41) and a movable platform (42). The movable platform (42) is movably mounted on the fixed platform (41). The movable platform (42) includes a first upright plate (43) and a second upright plate (44). A movable plate (45) that moves left and right is provided on the movable platform (42). (45) is located between the first upright plate (43) and the second upright plate (44). The first upright plate (43) and the moving plate (45) are both connected to pressure plates (46). A transmission rod (47) is rotatably arranged on the fixed platform (41). The transmission rod (47) is hinged to the first connecting rod (48) and the second connecting rod (49) respectively, and the center of rotation in the vertical direction is located between the hinge points. The first connecting rod (48) and the second connecting rod (49) are hinged to the second upright plate (44) and the moving plate (45) respectively.

7. A bag-making machine as described in claim 6, characterized in that: The fixed platform (41) is movable back and forth on the machine platform (52). The fixed platform (41) is connected to a guide block (50). The guide block (50) is slidably fitted with a guide rail (51). The guide rail (51) is set on the machine platform (52). The machine platform (52) is provided with a movable seat (53) that moves back and forth. The movable seat (53) is provided with a telescopic insertion shaft (54). The fixed platform (41) is provided with an insertion hole (56) for the insertion shaft (54) to be inserted.

8. A bag-making machine as described in claim 6, characterized in that: It also includes two sets of traction components (57), the bottom sealing component (37), the side sealing component (38) and the cooling and shaping component (40) are located between the two sets of traction components (57), the traction component (57) includes a conveyor roller group (58) and a guide plate group (59), the conveyor roller group (58) and the guide plate group (59) are arranged vertically in an alternating manner, the guide plate group (59) forms an open feed port, and a punching component (60) is also provided between the traction component (57) and the cooling and shaping component (40).

9. A bag-making machine as described in claim 8, characterized in that: The cutting mechanism (4) is adjusted to move back and forth relative to the bag clamping robot (5). The cutting mechanism (4) includes a cutting component (61) and a guide plate (62). The cutting component (61) includes a cutter (63) and a bottom cutter (64). The cutter (63) moves left and right relative to the bottom cutter (64). The guide plate (62) is arranged on the feeding side and the discharging side of the cutting component (61). The two guide plates (62) on the feeding side are provided with guide portions (65) at intervals. The guide portions (65) of the two guide plates (62) form an open feeding port.

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