Bag aligning machine for packaging bags

Abstract

The invention discloses a packaging bag aligning machine which is characterized in that a mounting machine base is arranged on a rack, a bag clamping and conveying mechanism is mounted on the mounting machine base, the bag clamping and conveying mechanism comprises a first deflection seat and a second deflection seat which are mounted on the mounting machine base in a deflection manner, and a first conveying frame and a second conveying frame are mounted on the first deflection seat and the second deflection seat respectively; a first bag clamping mechanism and a second bag clamping mechanism are mounted on the mounting base, the first bag clamping mechanism comprises a first bag clamping bottom plate, the first bag clamping bottom plate is mounted on the mounting base through a position adjusting structure, a first bag clamping lifting seat is mounted on the first bag clamping bottom plate, and a first clamping jaw mounting plate is mounted on the first bag clamping lifting seat; according to the bag aligning machine, the upper bag opening can be aligned before edge folding of the upper bag opening of the packaging bag, it is guaranteed that the bag openings of the packaging bag are located at the same position every time edge folding is conducted, and the edge folding quality is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of powder packaging, in particular to a bag-leveling machine for packaging bags. Background Art

[0002] In powder packaging technology, after the powder is filled into bags by the packaging machine, it needs to be transported to the heat laminating machine through a conveyor belt for heat laminating. Heat laminating mainly involves sealing the upper opening of the packaging bag. After heat laminating, the upper seal of the packaging bag needs to be folded on the folding machine. Since the sealed packaging bag may be offset and tilted during transportation, if the bag opening is tilted during folding by the folding and sewing machine, it cannot be guaranteed that each folding is accurate. And since the inclination angle of the bag opening is different each time, the height of the bag opening is also different. If the folding is performed directly, it is easy to have different states after each folding, so the subsequent sewing action will be inconsistent. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a bag trimming machine for packaging bags, which can perform a trimming process on the upper bag mouth of the packaging bag before folding the edge, ensuring that the bag mouth of the packaging bag is in the same position each time the edge is folded, thereby ensuring the quality of the folding edge.

[0004] In order to solve the above technical problems, the technical solution of the present invention is: a bag aligning machine for packaging bags, comprising a frame, a mounting base is arranged on the frame, a bag clamping conveying mechanism for clamping the bag mouth of the packaging bag is installed on the mounting base, a conveying roller line for supporting and transporting the packaging bag is arranged on the frame downstream of the bag clamping conveying mechanism, the bag clamping conveying mechanism comprises a first swaying seat and a second swaying seat swayingly mounted on the mounting base, the first swaying seat and the second swaying seat are respectively mounted with a first conveying frame and a second conveying frame, a first conveying belt wheel group and a second conveying belt wheel group are respectively rotatably mounted on the first conveying frame and the second conveying frame, a first conveying belt and a second conveying belt are respectively arranged on the first conveying belt wheel group and the second conveying belt wheel group, a first driving wheel of the first conveying belt wheel group and a second driving wheel of the second conveying belt wheel group are respectively connected to a rotating power device through a rotating transmission mechanism, and the first swaying seat and the second swaying seat are driven by a swaying power device;

[0005] A first bag clamping mechanism and a second bag clamping mechanism are installed on the mounting base, and the first bag clamping mechanism and the second bag clamping mechanism have the same structure and are located above the first conveyor belt wheel group and the second conveyor belt wheel group. The first bag clamping mechanism includes a first bag clamping base plate installed on the mounting base, and the first bag clamping base plate is installed on the mounting base through a position adjustment structure. A first bag clamping lifting seat is vertically slidably installed on the first bag clamping base plate, and a first clamping jaw mounting plate is installed on the first bag clamping lifting seat. A first clamping jaw driven by a first opening and closing power device is installed on the first clamping jaw mounting plate, and a rubber pad is detachably installed on the end of the first clamping jaw, and a first lifting power device for driving the first bag clamping lifting seat to rise and fall is arranged between the first bag clamping base plate and the first bag clamping lifting seat.

[0006] As a preferred scheme, the first clamping jaw includes a first clamping jaw unit and a second clamping jaw unit, the upper ends of the first clamping jaw units are respectively hinged to the first clamping jaw mounting plate through the first hinge shaft, and the middle parts of the second clamping jaw units are hinged to the first clamping jaw mounting plate through the second hinge shaft, the first opening and closing power device is a first opening and closing cylinder, one end of the first opening and closing cylinder is hinged to the first clamping jaw mounting plate, and the other end of the first opening and closing cylinder is hinged to the upper end of the second clamping jaw unit, a first synchronous hinge shaft is arranged on one side of the first clamping jaw unit, a second synchronous hinge shaft is arranged on one side of the second clamping jaw unit, a synchronous opening and closing connecting rod is arranged between the first synchronous hinge shaft and the second synchronous hinge shaft, the first synchronous hinge shaft and the second synchronous hinge shaft are both located between the first hinge shaft and the second hinge shaft, and the first synchronous hinge shaft is located below the line connecting the first hinge shaft and the second hinge shaft, and the second synchronous hinge shaft is located above the line connecting the first hinge shaft and the second hinge shaft.

[0007] As a preferred solution, the position adjustment structure includes a first vertical bar hole and a first adjusting bolt, the first vertical bar hole is arranged on the first bag clamping bottom plate, and the mounting base is also provided with a first horizontal bar hole, the first adjusting bolt is constrained in the first vertical bar hole and the first bag clamping bottom plate and the mounting base are fixed by a nut, and the first adjusting bolt is also constrained in the first horizontal bar hole at the same time.

[0008] As a preferred solution, the mounting base is lifted and slidably mounted on the frame, and a screw nut mechanism for adjusting the height of the mounting base is provided on the frame and the mounting base, and an adjusting handwheel is provided on the screw of the screw nut mechanism.

[0009] As a preferred solution, the first deflection seat and the second deflection seat have the same structure, the first deflection seat includes two deflection rods and a first horizontal connecting beam, the upper end of the deflection rod is hinged on the mounting base, the two ends of the first horizontal connecting beam are connected to the lower ends of the two deflection rods, the first conveying frame and the second conveying frame have the same structure, the first conveying frame includes a conveying beam fixed on the first horizontal connecting beam, the first conveying belt wheel group includes the first driving wheel and the first driven wheel, and a plurality of intermediate conveying wheels between the first driving wheel and the driven wheel, the intermediate conveying wheels are rotatably mounted on the conveying beam, the first driving wheel and the first driven wheel are rotatably mounted on the first driving frame and the first driven frame respectively, the first driving frame and the second driving frame are fixed on the first horizontal connecting beam and are located at the two ends of the conveying beam, and the first conveyor belt is installed between the first driving wheel and the first driven wheel.

[0010] As a preferred solution, the rotary power device is a rotary motor, which is fixed on the mounting base. The rotary transmission mechanism includes a driving gear and a driven gear that are rotatably mounted on the mounting base and are mutually engaged. The driving gear is fixed to the output shaft of the rotary motor, and the gear shaft of the driving gear is connected to the axle of the first driving wheel via a universal joint transmission shaft, and the gear shaft of the driven gear is connected to the axle of the second driving wheel via a universal joint transmission shaft.

[0011] As a preferred solution, a restraining structure for restraining the bag opening of the packaging bag is also installed on the first and second deflection seats.

[0012] As a preferred solution, the constraint structure includes a first constraint plate fixed on the first horizontal connecting beam and a second constraint plate fixed on the second horizontal connecting beam of the second swing seat, and the first constraint plate and the second constraint plate cooperate with each other to constrain the bag opening of the packaging bag.

[0013] As a preferred solution, the first constraint plate and the second constraint plate are installed in the same manner, a connecting plate is provided on the side of the first constraint plate, a strip hole is provided on the connecting plate, connecting bolts are constrained in the strip hole, and the connecting plate is fixed to the first horizontal connecting beam through the connecting bolts.

[0014] As a preferred solution, a position detection sensor for detecting the position of the bag opening of the packaging bag is also installed on the mounting base.

[0015] After adopting the above technical scheme, the effect of the present invention is as follows: since the bag leveling machine for packaging bags comprises a frame, the frame is provided with a mounting base, the mounting base is provided with a bag clamping conveying mechanism for clamping the bag mouth of the packaging bag, the frame is provided with a conveying roller line for supporting and transporting the packaging bag at the downstream of the bag clamping conveying mechanism, the bag clamping conveying mechanism comprises a first swaying seat and a second swaying seat swayingly mounted on the mounting base, the first swaying seat and the second swaying seat are respectively provided with a first conveying frame and a second conveying frame, the first conveying frame and the second conveying frame are respectively rotatably provided with a first conveying belt wheel group and a second conveying belt wheel group, the first conveying belt wheel group and the second conveying belt wheel group are respectively provided with a first conveying belt and a second conveying belt, the first driving wheel of the first conveying belt wheel group and the second driving wheel of the second conveying belt wheel group are respectively connected to the rotating power device through a rotating transmission mechanism, and the first swaying seat and the second swaying seat are driven by the swaying power device;

[0016] The mounting base is provided with a first bag clamping mechanism and a second bag clamping mechanism, the first bag clamping mechanism and the second bag clamping mechanism have the same structure and are located above the first conveyor belt wheel group and the second conveyor belt wheel group, the first bag clamping mechanism comprises a first bag clamping bottom plate mounted on the mounting base, the first bag clamping bottom plate is mounted on the mounting base through a position adjustment structure, a first bag clamping lifting seat is vertically slidably mounted on the first bag clamping bottom plate, a first clamping claw mounting plate is mounted on the first bag clamping lifting seat, a first clamping claw driven by a first opening and closing power device is mounted on the first clamping claw mounting plate, a rubber pad is detachably mounted on the end of the first clamping claw, and a first bag clamping bottom plate is provided with a first clamping claw. A first lifting power device for driving the first bag clamping lifting seat to lift is arranged between the plate and the first bag clamping lifting seat; firstly, the first pendulum seat and the second pendulum seat are driven to swing by the swing power device to facilitate the entry of the powder packaging bag, and then the rotary power device cooperates with the rotary transmission mechanism to drive the first driving wheel and the second driving wheel, so that the first conveyor belt and the second conveyor belt start to transmit, and then the first pendulum seat and the second pendulum seat are reset to reset the swing, so that the upper bag mouth of the powder packaging bag can be clamped and conveyed at the same time, and the surface of the first conveyor belt and the second conveyor belt can make the upper bag mouth flat, and then the powder packaging bag is clamped and conveyed to the bottom of the first bag clamping mechanism and the second bag clamping mechanism,

[0017] The installation position of the first bag clamping bottom plate is adjusted by the position adjustment mechanism, and then the first lifting power device drives the first bag clamping lifting seat to rise and fall, so that the first clamping claw can move downward to the bag opening, and then the first opening and closing power device drives the first clamping claw to merge, and then the first lifting power device drives the first clamping claw to clamp the bag opening and then rise, and the second bag clamping mechanism is the same. In this way, the packaging bag can be lifted up, and the bag opening is accurately facing upward and then released, and then conveyed to the downstream conveying roller line by the first conveyor belt and the second conveyor belt; the bag leveling machine can level the upper bag opening of the packaging bag before folding the edge, ensuring that the bag opening of the packaging bag is in the same position each time the edge is folded, thereby ensuring the quality of the folding edge.

[0018] Since the first clamping jaw includes a first clamping jaw unit and a second clamping jaw unit, the upper ends of the first clamping jaw units are respectively hinged to the first clamping jaw mounting plate through the first hinge shaft, and the middle part of the second clamping jaw unit is hinged to the first clamping jaw mounting plate through the second hinge shaft, the first opening and closing power device is a first opening and closing cylinder, one end of the first opening and closing cylinder is hinged to the first clamping jaw mounting plate, and the other end of the first opening and closing cylinder is hinged to the upper end of the second clamping jaw unit, a first synchronous hinge shaft is provided on one side of the first clamping jaw unit, a second synchronous hinge shaft is provided on one side of the second clamping jaw unit, and a synchronous opening and closing shaft is provided between the first synchronous hinge shaft and the second synchronous hinge shaft. The first synchronous hinge shaft and the second synchronous hinge shaft are both located between the first hinge shaft and the second hinge shaft, and the first synchronous hinge shaft is located below the line between the first hinge shaft and the second hinge shaft, and the second synchronous hinge shaft is located above the line between the first hinge shaft and the second hinge shaft; by extending the piston rod of the first opening and closing cylinder, the end of the second clamping jaw unit is merged inwardly, and at the same time, the synchronous opening and closing connecting rod will drive the end of the first clamping jaw unit to merge inwardly; conversely, when the piston rod of the first opening and closing cylinder is retracted, the end of the second clamping jaw unit can be opened outwardly, and at the same time, the synchronous opening and closing connecting rod will drive the end of the first clamping jaw unit to open outwardly, ensuring that the opening and closing of the bag mouth is stable and accurate.

[0019] Furthermore, since the position adjustment structure includes a first vertical bar hole and a first adjusting bolt, the first vertical bar hole is arranged on the first bag clamping bottom plate, and the mounting base is also provided with a first horizontal bar hole, the first adjusting bolt is constrained in the first vertical bar hole and the first bag clamping bottom plate and the mounting base are fixed by a nut, and the first adjusting bolt is also constrained in the first horizontal bar hole at the same time; in this way, the height position of the first bag clamping bottom plate can be adjusted through the first vertical bar hole to adapt to packaging bags of different heights; and the horizontal position of the first bag clamping bottom plate can also be adjusted, so as to clamp the packaging bag bag opening at different horizontal positions.

[0020] Since the mounting base is lifted and slidably installed on the frame, a screw nut mechanism for adjusting the height of the mounting base is provided on the frame and the mounting base, and an adjusting handwheel is provided on the screw of the screw nut mechanism; the installation height of the bag clamping and conveying mechanism, the first bag clamping mechanism and the second bag clamping mechanism can be adjusted as a whole to adapt to packaging bags of different sizes, while improving the overall flexibility and facilitating installation.

[0021] Since the first deflection seat and the second deflection seat have the same structure, the first deflection seat includes two deflection rods and a first horizontal connecting beam, the upper end of the deflection rod is hinged on the mounting base, the two ends of the first horizontal connecting beam are connected to the lower ends of the two deflection rods, the first conveying frame and the second conveying frame have the same structure, the first conveying frame includes a conveying beam fixed on the first horizontal connecting beam, the first conveying belt wheel group includes the first driving wheel and the first driven wheel, and a plurality of intermediate conveying wheels between the first driving wheel and the driven wheel, the intermediate conveying wheels are rotatably installed on the conveying beam, the first driving wheel and the first driven wheel are rotatably installed on the first driving frame and the first driven frame respectively, the first driving frame and the second driving frame are fixed on the first horizontal connecting beam and are located at the two ends of the conveying beam, and the first conveyor belt is installed between the first driving wheel and the first driven wheel; ensure that the first conveying belt wheel group also deflects synchronously when the first deflection seat deflects, so as to ensure the stable and accurate clamping and conveying of the powder packaging bag.

[0022] Furthermore, since the rotary power device is a rotary motor, the rotary motor is fixed on the mounting base, and the rotary transmission mechanism includes a driving gear and a driven gear that are rotatably mounted on the mounting base and are mutually engaged, the driving gear is fixed to the output shaft of the rotary motor, the gear shaft of the driving gear is connected to the axle of the first driving wheel through a universal joint transmission shaft, and the gear shaft of the driven gear is connected to the axle of the second driving wheel through a universal joint transmission shaft; first, the rotary motor drives the driving gear to rotate and drives the driven gear to rotate, so that the first driving wheel and the second driving wheel can be effectively transmitted, and then the universal joint transmission shaft can make the first driving wheel and the second driving wheel effectively transmitted even when they are deflected, thereby improving the use effect.

[0023] Furthermore, since the first deflection seat and the second deflection seat are also equipped with a restraining structure for restraining the bag opening of the packaging bag, the effect of clamping and conveying the bag opening of the powder packaging bag is further improved.

[0024] Furthermore, since the constraint structure includes a first constraint plate fixed on the first horizontal connecting beam and a second constraint plate fixed on the second horizontal connecting beam of the second deflection seat, the first constraint plate and the second constraint plate cooperate with each other to constrain the bag opening of the packaging bag, thereby increasing the contact area with the powder packaging bag and improving the flatness of the bag opening when clamping.

[0025] Since the first constraint plate and the second constraint plate are installed in the same way, a connecting plate is provided on the side of the first constraint plate, and a strip hole is provided on the connecting plate. Connecting bolts are constrained in the strip hole, and the connecting plate is fixed to the first horizontal connecting beam through the connecting bolts; the installation position of the first constraint plate and the second constraint plate can be adjusted along the extension direction of the strip hole through the strip hole, thereby changing the distance between the first constraint plate and the second constraint plate to adapt to different packaging bags.

[0026] Furthermore, since a position detection sensor for detecting the position of the bag opening of the packaging bag is also installed on the mounting base, the position detection sensor can ensure that the first bag clamping mechanism and the second bag clamping mechanism are accurate and stable when clamping the bag opening, thereby improving the use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0028] Figure 1 is a stereogram of an embodiment of the present invention;

[0029] Figure 2 It is a structural schematic diagram of a lead screw and nut mechanism installed on a machine base according to an embodiment of the present invention;

[0030] Figure 3 2 is a schematic diagram of the structure of the first deflection seat and the second deflection seat according to an embodiment of the present invention;

[0031] Figure 4 yes Figure 3 A partial enlarged view of point A;

[0032] Figure 5 is a schematic structural diagram of a first conveyor frame and a second conveyor frame according to an embodiment of the present invention;

[0033] Figure 6 is a schematic structural diagram of a first bag clamping mechanism according to an embodiment of the present invention;

[0034] Figure 7 This is a schematic diagram of the structure of the second bag clamping mechanism according to an embodiment of the present invention.

[0035] Figure 8 is a front view of the position adjustment structure of an embodiment of the present invention;

[0036] In the attached drawings: 1, frame; 2, mounting base; 3, first deflection seat; 4, second deflection seat; 5, first conveyor belt; 6, second conveyor belt; 7, first driving wheel; 8, second driving wheel; 9, deflection rod; 10, first horizontal connecting beam; 11, conveying beam; 12, first driven wheel; 13, intermediate conveying wheel; 14, first active frame; 15, first driven frame; 16, second horizontal connecting beam; 17, second driven wheel; 18, second active frame; 19, second driven frame; 20, rotating motor; 21, driving gear; 22, driven gear; 23, deflection cylinder; 24, first crank arm; 25, second crank arm; 26, synchronous connecting rod; 27, first hinge point; 28, second hinge point; 29, first restraining plate; 30, second restraining plate; 31, connecting plate; 32, strip hole; 33, connecting bolt;

[0037] 34. First clamping bag bottom plate; 35. First clamping bag lifting seat; 36. First clamping jaw mounting plate; 37. Rubber pad; 38. Second clamping bag bottom plate; 39. Second clamping bag lifting seat; 40. Second clamping jaw mounting plate; 41. First lifting motor; 42. Second lifting motor; 43. First clamping jaw unit; 44. Second clamping jaw unit; 45. First hinge shaft; 46. Second hinge shaft; 47. First opening and closing cylinder; 48. First synchronous hinge shaft; 49. Second synchronous hinge shaft; 50. Synchronous opening and closing connecting rod; 51. Third clamping jaw Monomer; 52, fourth clamping jaw monomer; 53, third hinge shaft; 54, fourth hinge shaft; 55, second opening and closing cylinder; 56, third synchronous hinge shaft; 57, fourth synchronous hinge shaft; 58, mounting step groove; 59, center hole; 60, first vertical bar hole; 61, first adjusting bolt; 62, second vertical bar hole; 63, second adjusting bolt; 64, first horizontal bar hole; 65, second horizontal bar hole; 66, adjusting hand wheel; 67, screw nut mechanism; 68, position detection sensor; 69, position adjustment bracket. DETAILED DESCRIPTION

[0038] The present invention is further described in detail below through specific examples.

[0039] like Figures 1 to 8As shown, a bag leveling machine for packaging bags comprises a frame 1, a mounting base 2 is arranged on the frame 1, a bag clamping and conveying mechanism for clamping the bag mouth of the packaging bag is installed on the mounting base 2, a conveying roller line for supporting and transporting the packaging bag is arranged on the frame 1 at the downstream of the bag clamping and conveying mechanism, the bag clamping and conveying mechanism comprises a first sway seat 3 and a second sway seat 4 swayingly mounted on the mounting base 2, the first sway seat 3 and the second sway seat 4 are respectively mounted with a first conveying frame and a second conveying frame, a first conveying belt 5 wheel group and a second conveying belt 6 wheel group are respectively rotatably mounted on the first conveying frame and the second conveying frame, the first conveying belt 5 wheel group and the second conveying belt 6 wheel group are respectively provided with a first conveying belt 5 and a second conveying belt 6, a first driving wheel 7 of the first conveying belt 5 wheel group and a second driving wheel 8 of the second conveying belt 6 wheel group are respectively connected to a rotating power device through a rotating transmission mechanism, and the first sway seat 3 and the second sway seat 4 are driven by a swaying power device;

[0040] A first bag clamping mechanism and a second bag clamping mechanism are installed on the mounting base 2. The first bag clamping mechanism and the second bag clamping mechanism have the same structure and are located above the first conveyor belt 5 wheel group and the second conveyor belt 6 wheel group. The first bag clamping mechanism includes a first bag clamping base plate 34 installed on the mounting base 2. The first bag clamping base plate 34 is installed on the mounting base 2 through a position adjustment structure. A first bag clamping lifting seat 35 is vertically slidably installed on the first bag clamping base plate 34. A first clamping jaw mounting plate 36 is installed on the first bag clamping lifting seat 35. A first clamping jaw driven by a first opening and closing power device is installed on the first clamping jaw mounting plate 36. A rubber pad 37 is detachably installed on the end of the first clamping jaw. A first lifting power device that drives the first bag clamping lifting seat 35 to rise and fall is arranged between the first bag clamping base plate 34 and the first bag clamping lifting seat 35.

[0041] The second bag clamping mechanism also includes a second bag clamping base plate 38 located on the mounting base 2. The second bag clamping base plate 38 is installed on the mounting base 2 through the same position adjustment structure. A second bag clamping lifting seat 39 is vertically slidably installed on the second bag clamping base plate 38. A second clamping jaw mounting plate 40 is installed on the second bag clamping lifting seat 39. A second clamping jaw driven by a second opening and closing power device is installed on the second clamping jaw mounting plate 40. A rubber pad 37 is detachably installed at the end of the second clamping jaw. A second lifting power device for driving the second bag clamping lifting seat 39 to rise and fall is arranged between the second bag clamping base plate 38 and the second bag clamping lifting seat 39.

[0042] The first lifting power device includes a first lifting motor 41, and the second lifting power device includes a second lifting motor 42. The first lifting motor 41 and the second lifting motor 42 respectively drive the first bag clamping lifting seat 35 and the second bag clamping lifting seat 39 to lift stably.

[0043] like Figure 6 As shown, the first clamping jaw includes a first clamping jaw unit 43 and a second clamping jaw unit 44. The upper ends of the first clamping jaw units 43 are respectively hinged to the first clamping jaw mounting plate 36 through first hinge shafts 45, and the middle part of the second clamping jaw unit 44 is hinged to the first clamping jaw mounting plate 36 through second hinge shafts 46. The first opening and closing power device is a first opening and closing cylinder 47. One end of the first opening and closing cylinder 47 is hinged to the first clamping jaw mounting plate 36, and the other end of the first opening and closing cylinder 47 is hinged to the upper end of the second clamping jaw unit 44. The first clamping jaw A first synchronous hinge shaft 48 is provided on one side of the monomer 43, and a second synchronous hinge shaft 49 is provided on one side of the second clamping claw monomer 44. A synchronous opening and closing connecting rod 50 is provided between the first synchronous hinge shaft 48 and the second synchronous hinge shaft 49. The first synchronous hinge shaft 48 and the second synchronous hinge shaft 49 are both located between the first hinge shaft 45 and the second hinge shaft 46, and the first synchronous hinge shaft 48 is located below the line connecting the first hinge shaft 45 and the second hinge shaft 46, and the second synchronous hinge shaft 49 is located above the line connecting the first hinge shaft 45 and the second hinge shaft 46;

[0044] The second clamping jaw comprises a third clamping jaw monomer 51 and a fourth clamping jaw monomer 52. The upper end of the third clamping jaw monomer 51 is hinged to the second clamping jaw mounting plate 40 through a third hinge shaft 53, and the middle part of the fourth clamping jaw monomer 52 is hinged to the second clamping jaw mounting plate 40 through a fourth hinge shaft 54. The second opening and closing power device is a second opening and closing cylinder 55. One end of the second opening and closing cylinder 55 is hinged to the second clamping jaw mounting plate 40, and the other end of the second opening and closing cylinder 55 is hinged to the upper end of the fourth clamping jaw monomer 52. A third synchronous hinge shaft 56 is provided on one side of the third clamping jaw monomer 51, and a fourth synchronous hinge shaft 57 is provided on one side of the fourth clamping jaw monomer 52. A synchronous opening and closing connecting rod 50 is also provided between the third synchronous hinge shaft 56 and the fourth synchronous hinge shaft 57. The third synchronous hinge shaft 56 and the fourth synchronous hinge shaft 57 are both located between the third hinge shaft 53 and the fourth hinge shaft 54, and the third synchronous hinge shaft 56 is located below the line between the third hinge shaft 53 and the fourth hinge shaft 54, and the fourth synchronous hinge shaft 57 is located above the line between the third hinge shaft 53 and the fourth hinge shaft 54; by extending the piston rod of the first opening and closing cylinder 47, the end of the second clamping jaw monomer 44 merges inwardly, and at the same time, the synchronous opening and closing connecting rod 50 will drive the end of the first clamping jaw monomer 43 to merge inwardly; conversely, the piston rod of the first opening and closing cylinder 47 retracts, so that the end of the second clamping jaw monomer 44 can be opened outwardly, and at the same time, the synchronous opening and closing connecting rod 50 will drive the end of the first clamping jaw monomer 43 to open outward, ensuring that the opening and closing of the bag mouth is stable and accurate; the second clamping jaw is driven in the same way.

[0045] In this embodiment, a mounting step groove 58 is provided at the lower end of the first clamping jaw monomer 43, a connecting stud is provided on the mounting step groove 58, a center hole 59 which is sleeved on the connecting stud is provided on the rubber pad 37, and the rubber pad 37 is sleeved on the connecting stud and fixed by a clamping nut; the mounting step groove 58 can be used to quickly locate the installation position, so that the rubber pad 37 can be firmly installed and convenient to replace, thereby improving the use effect; the connecting stud can; the second clamping jaw monomer 44, the third clamping jaw monomer 51 and the fourth clamping jaw monomer 52 are all fixedly provided with a mounting step groove 58.

[0046] like Figure 1 , Figure 2 and Figure 8 As shown, the position adjustment structure includes a first vertical bar hole 60 and a first adjusting bolt 61, the first vertical bar hole 60 is arranged on the first bag clamping bottom plate 34, and the mounting base 2 is also provided with a first horizontal bar hole 64, the first adjusting bolt 61 is constrained in the first vertical bar hole 60 and the first bag clamping bottom plate 34 is fixed to the mounting base 2 by a nut, and the first adjusting bolt 61 is also constrained in the first horizontal bar hole 64 at the same time; the first bag clamping bottom plate 34 is provided with two upper and lower first vertical bar holes 60 to ensure a firm installation, so that the first bag clamping bottom plate 34 can adjust the height position through the first vertical bar holes 60 to adapt to packaging bags of different heights; the second bag clamping bottom plate 38 is also provided with a corresponding second vertical bar hole 62 and a second adjusting bolt 63 nut; the mounting base 2 is also provided with a second horizontal bar hole 65, and the second adjusting bolt 63 is also constrained in the second horizontal bar hole 65 to adjust the horizontal positions of the first bag clamping bottom plate 34 and the second bag clamping bottom plate 38, thereby clamping the packaging bag at different horizontal positions of the bag opening.

[0047] like Figure 2 As shown, the mounting base 2 is mounted on the frame 1 in a lifting and sliding manner. The frame 1 and the mounting base 2 are provided with a screw nut mechanism 67 for adjusting the height of the mounting base 2, and an adjusting handwheel 66 is provided on the screw of the screw nut mechanism 67. The screw is driven to rotate by rotating the adjusting handwheel 66, thereby driving the nut to rise and fall, thereby adjusting the installation height of the bag clamping and conveying mechanism, the first bag clamping mechanism and the second bag clamping mechanism as a whole, which can adapt to packaging bags of different sizes, while improving the overall flexibility and facilitating installation.

[0048] like Figure 1 and Figure 3As shown, the first deflection seat 3 and the second deflection seat 4 have the same structure, the first deflection seat 3 includes two deflection rods 9 and a first horizontal connecting beam 10, the upper end of the deflection rod 9 is hinged on the mounting base 2, and the two ends of the first horizontal connecting beam 10 are connected to the lower ends of the two deflection rods 9, the first conveying frame and the second conveying frame have the same structure, the first conveying frame includes a conveying beam 11 fixed on the first horizontal connecting beam 10, the first conveying belt 5 wheel group includes the first driving wheel 7 and the first driven wheel 12, and a plurality of intermediate conveying wheels 13 between the first driving wheel 7 and the driven wheel, the intermediate conveying wheel 13 is rotatably mounted on the conveying beam 11, the first driving wheel 7 and the first driven wheel 12 are rotatably mounted on the first driving frame 14 and the first driven frame 15 respectively, the first driving frame 14 and the second driving frame 18 are fixed on the first horizontal connecting beam 10 and are located at the two ends of the conveying beam 11, and the first conveying belt 5 is installed between the first driving wheel 7 and the first driven wheel 12;

[0049] The second deflection seat 4 is also provided with two deflection rods 9 and a second horizontal connecting beam 16. The second conveyor frame is provided with a conveying beam 11 installed on the second horizontal connecting beam 16. The second conveyor belt 6 wheel group includes a second driving wheel 8 and a second driven wheel 17. A plurality of intermediate conveying wheels 13 installed on the conveying beam 11 are also provided between the second driving wheel 8 and the second driven wheel 17. Similarly, the second driving wheel 8 and the second driven wheel 17 are respectively installed on the second driving frame 18 and the second driven frame 19, and the second driving frame 18 and the second driven frame 19 are also respectively located at the two ends of the conveying beam 11, and the second conveyor belt 6 is located between the second driving wheel 8 and the second driven wheel 17; ensure that the first conveyor belt 5 wheel group also deflects synchronously when the first deflection seat 3 deflects, and the second deflection seat 4 and the second conveyor belt 6 wheel group are also the same, to ensure the stable and accurate clamping and conveying of the powder packaging bag.

[0050] In this embodiment, the rotary power device is a rotary motor 20, which is fixed on the mounting base 2. The rotary transmission mechanism includes a driving gear 21 and a driven gear 22 that are rotatably mounted on the mounting base 2 and are mutually engaged. The driving gear 21 is fixed to the output shaft of the rotary motor 20. The gear shaft of the driving gear 21 is connected to the axle of the first driving wheel 7 through a universal joint transmission shaft, and the gear shaft of the driven gear 22 is also connected to the axle of the second driving wheel 8 through a universal joint transmission shaft. First, the rotary motor 20 drives the driving gear 21 to rotate and drives the driven gear 22 to rotate, so that the first driving wheel 7 and the second driving wheel 8 can be effectively transmitted. Then, the universal joint transmission shaft can effectively transmit the first driving wheel 7 and the second driving wheel 8 when they are deflected, thereby improving the use effect. The universal joint transmission shaft is an existing structure on the market, which is not shown in the drawings and is not described in detail in the text.

[0051] Furthermore, the yaw force device includes a yaw cylinder 23, which is hinged between the yaw rod 9 of the first yaw seat 3 and the yaw rod 9 of the second yaw seat 4, and a synchronous connecting rod 26 mechanism is arranged between the first yaw seat 3 and the second yaw seat 4; the yaw cylinder 23 is telescoped so that the first yaw seat 3 and the second yaw seat 4 can yaw synchronously, thereby ensuring the stability of the clamping and conveying of the powder packaging bag.

[0052] like Figure 4 As shown, the synchronous connection mechanism includes a first crank arm 24, a second crank arm 25 and a synchronous connecting rod 26, wherein the first crank arm 24 is arranged on the deflection rod 9 of the first deflection seat 3, and the second crank arm 25 is arranged on the deflection rod 9 of the second deflection seat 4. The synchronous connecting rod 26 is hinged between the first crank arm 24 and the second crank arm 25, and the hinge point between the synchronous connecting rod 26 and the first crank arm 24 is a first hinge point 27, and the hinge point between the synchronous connecting rod 26 and the second crank arm 25 is a second hinge point 28. The first hinge point 27 is located above the swing center of the first swing seat 3, and the second hinge point 28 is located below the swing center of the second swing seat 4. The line connecting the swing center of the first swing seat 3 and the first hinge point 27, and the line connecting the swing center of the second swing seat 4 and the second hinge point 28 are parallel to each other; therefore, when the first swing seat 3 swings outward, the first curved arm 24 will swing inward, and drive the second curved arm 25 to swing outward through the synchronous connecting rod 26, forming a linkage to ensure swing synchronization.

[0053] like Figure 1 and Figure 3 As shown, the first deflection seat 3 and the second deflection seat 4 are also equipped with a restraining structure for restraining the bag opening of the packaging bag, thereby further improving the effect of clamping and conveying the bag opening of the powder packaging bag.

[0054] Furthermore, the constraint structure includes a first constraint plate 29 fixed on the first horizontal connecting beam 10 and a second constraint plate 30 fixed on the second horizontal connecting beam 16 of the second swing seat 4. The first constraint plate 29 and the second constraint plate 30 cooperate with each other to constrain the bag opening of the packaging bag, increase the contact area with the powder packaging bag, and improve the flatness of the bag opening when clamping.

[0055] The first constraint plate 29 and the second constraint plate 30 are installed in the same manner. A connecting plate 31 is provided on the side of the first constraint plate 29. A strip hole 32 is provided on the connecting plate 31. A connecting bolt 33 is constrained in the strip hole 32. The connecting plate 31 is fixed to the first horizontal connecting beam 10 through the connecting bolt 33. A connecting plate 31 is also provided on the side of the second constraint plate 30, which is installed on the second horizontal connecting beam 16 through the strip hole 32. The installation position of the first constraint plate 29 and the second constraint plate 30 can be adjusted along the extension direction of the strip hole 32 through the strip hole 32, thereby changing the distance between the first constraint plate 29 and the second constraint plate 30 to adapt to different packaging bags.

[0056] In this embodiment, a position detection sensor 68 for detecting the position of the bag opening of the packaging bag is also installed on the mounting base 2; the position detection sensor 68 is installed on the mounting base 2 through horizontal sliding adjustment of a position adjustment bracket 69, corresponding to the first clamping jaw and the second clamping jaw, thereby ensuring that the first bag clamping mechanism and the second bag clamping mechanism are accurate and stable when clamping the bag opening, thereby improving the use effect.

[0057] The working principle of this embodiment is as follows: first, the screw is driven to rotate by rotating the adjusting hand wheel 66, driving the nut to lift and lower the height of the mounting base 2, and then the first and second swing seats 3 and 4 are driven to swing outwards relative to each other through the swing cylinder 23, and then the rotating motor 20 drives the driving gear 21 to rotate and drives the driven gear 22 to rotate, and then the first driving wheel 7 and the second driving wheel 8 are driven by the universal joint transmission shaft, so that the first conveyor belt 5 and the second conveyor belt 6 are driven and conveyed, and when the powder packaging bag is conveyed over, the first and second swing seats 3 and 4 are driven to swing inwards relative to each other, and the first constraint plate 29 and the second constraint plate 30 cooperate to constrain As the powder packaging bag is transported to the bottom of the first bag clamping mechanism and the second bag clamping mechanism, the position detection sensor 68 detects whether there is a powder packaging bag, and then the first lifting motor 41 and the second lifting motor 42 respectively drive the first bag clamping lifting seat 35 and the second bag clamping lifting seat 39 to descend, and the first opening and closing cylinder 47 and the second opening and closing cylinder 55 respectively drive the first clamping jaw monomer 43, the second clamping jaw monomer 44 and the third clamping jaw monomer 51, and the fourth clamping jaw monomer 52 to clamp the two ends of the bag opening of the packaging bag, and then drive the first bag clamping lifting seat 35 and the second bag clamping lifting seat 39 to rise, lift the packaging bag, and make the bag opening of the packaging bag upright.

[0058] The above-described embodiments are merely descriptions of preferred implementations of the present invention and are not intended to limit the scope of the present invention. Various modifications and alterations to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the scope of protection defined by the claims of the present invention.

Claims

1. A bag-leveling machine for packaging bags, characterized in that: The bag conveying device comprises a frame, a mounting base is arranged on the frame, a bag clamping conveying mechanism for clamping the bag mouth of the packaging bag is installed on the mounting base, a conveying roller line for supporting and transporting the packaging bag is arranged on the frame downstream of the bag clamping conveying mechanism, the bag clamping conveying mechanism comprises a first sway seat and a second sway seat swayingly mounted on the mounting base, a first conveying frame and a second conveying frame are respectively mounted on the first sway seat and the second sway seat, a first conveying belt wheel group and a second conveying belt wheel group are respectively rotatably mounted on the first conveying frame and the second conveying frame, a first conveying belt and a second conveying belt are respectively arranged on the first conveying belt wheel group and the second conveying belt wheel group, a first driving wheel of the first conveying belt wheel group and a second driving wheel of the second conveying belt wheel group are respectively connected to a rotating power device through a rotating transmission mechanism, and the first sway seat and the second sway seat are driven by a swaying power device; A first bag clamping mechanism and a second bag clamping mechanism are installed on the mounting base, and the first bag clamping mechanism and the second bag clamping mechanism have the same structure and are located above the first conveyor belt wheel group and the second conveyor belt wheel group. The first bag clamping mechanism includes a first bag clamping base plate installed on the mounting base, and the first bag clamping base plate is installed on the mounting base through a position adjustment structure. A first bag clamping lifting seat is vertically slidably installed on the first bag clamping base plate, and a first clamping jaw mounting plate is installed on the first bag clamping lifting seat. A first clamping jaw driven by a first opening and closing power device is installed on the first clamping jaw mounting plate, and a rubber pad is detachably installed on the end of the first clamping jaw, and a first lifting power device for driving the first bag clamping lifting seat to rise and fall is arranged between the first bag clamping base plate and the first bag clamping lifting seat.

2. A bag-aligning machine for packaging bags as claimed in claim 1, characterized in that: The first clamping jaw includes a first clamping jaw unit and a second clamping jaw unit, the upper ends of the first clamping jaw units are respectively hinged on the first clamping jaw mounting plate through the first hinge shaft, and the middle parts of the second clamping jaw units are hinged on the first clamping jaw mounting plate through the second hinge shaft, the first opening and closing power device is a first opening and closing cylinder, one end of the first opening and closing cylinder is hinged on the first clamping jaw mounting plate, and the other end of the first opening and closing cylinder is hinged on the upper end of the second clamping jaw unit, a first synchronous hinge shaft is arranged on one side of the first clamping jaw unit, a second synchronous hinge shaft is arranged on one side of the second clamping jaw unit, a synchronous opening and closing connecting rod is arranged between the first synchronous hinge shaft and the second synchronous hinge shaft, the first synchronous hinge shaft and the second synchronous hinge shaft are both located between the first hinge shaft and the second hinge shaft, and the first synchronous hinge shaft is located below the line connecting the first hinge shaft and the second hinge shaft, and the second synchronous hinge shaft is located above the line connecting the first hinge shaft and the second hinge shaft.

3. A bag-aligning machine for packaging bags as claimed in claim 2, characterized in that: The position adjustment structure includes a first vertical bar hole and a first adjusting bolt. The first vertical bar hole is arranged on the first bag clamping bottom plate. The mounting base is also provided with a first horizontal bar hole. The first adjusting bolt is constrained in the first vertical bar hole and the first bag clamping bottom plate is fixed to the mounting base by a nut. The first adjusting bolt is also constrained in the first horizontal bar hole at the same time.

4. A bag-aligning machine for packaging bags as claimed in claim 3, characterized in that: The mounting base is installed on the frame in a lifting and sliding manner. A screw nut mechanism for adjusting the height of the mounting base is provided on the frame and the mounting base, and an adjusting hand wheel is provided on the screw of the screw nut mechanism.

5. The bag-aligning machine for packaging bags according to claim 1, characterized in that: The first deflection seat and the second deflection seat have the same structure, the first deflection seat includes two deflection rods and a first horizontal connecting beam, the upper end of the deflection rod is hinged on the mounting base, the two ends of the first horizontal connecting beam are connected to the lower ends of the two deflection rods, the first conveying frame and the second conveying frame have the same structure, the first conveying frame includes a conveying beam fixed on the first horizontal connecting beam, the first conveying belt wheel group includes the first driving wheel and the first driven wheel, and a plurality of intermediate conveying wheels between the first driving wheel and the driven wheel, the intermediate conveying wheels are rotatably mounted on the conveying beam, the first driving wheel and the first driven wheel are rotatably mounted on the first driving frame and the first driven frame respectively, the first driving frame and the second driving frame are fixed on the first horizontal connecting beam and are located at the two ends of the conveying beam, and the first conveyor belt is installed between the first driving wheel and the first driven wheel.

6. A bag-aligning machine for packaging bags as claimed in claim 5, characterized in that: The rotary power device is a rotary motor, which is fixed on the mounting base. The rotary transmission mechanism includes a driving gear and a driven gear which are rotatably mounted on the mounting base and are mutually engaged. The driving gear is fixed to the output shaft of the rotary motor. The gear shaft of the driving gear is connected to the axle of the first driving wheel through a universal joint transmission shaft, and the gear shaft of the driven gear is connected to the axle of the second driving wheel through a universal joint transmission shaft.

7. A bag-aligning machine for packaging bags as claimed in claim 6, characterized in that: The first deflection seat and the second deflection seat are also equipped with a restraining structure for restraining the bag opening of the packaging bag.

8. A bag-aligning machine for packaging bags as claimed in claim 7, characterized in that: The restraint structure includes a first restraint plate fixed on a first horizontal connecting beam and a second restraint plate fixed on a second horizontal connecting beam of a second deflection seat, and the first restraint plate and the second restraint plate cooperate with each other to restrain the bag opening of the packaging bag.

9. A bag-lining machine for packaging bags as claimed in claim 8, characterized in that: The first constraint plate and the second constraint plate are installed in the same manner. A connecting plate is provided on the side of the first constraint plate. The connecting plate is provided with strip holes. Connecting bolts are constrained in the strip holes. The connecting plate is fixed to the first horizontal connecting beam through the connecting bolts.

10. A bag-aligning machine for packaging bags as claimed in claim 9, characterized in that: The mounting base is also provided with a position detection sensor for detecting the position of the bag opening of the packaging bag.

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