CN216230963U - Automatic feeding mechanism of packaging machine - Google Patents

Abstract

The application discloses automatic feeding mechanism of a packaging machine, which comprises a rack, wherein the rack is sequentially provided with a placing rack, a material guide cylinder, a side edge hot-pressing assembly, a traction assembly and a hot-pressing cutting assembly from top to bottom, the placing rack is used for placing plastic film coiled materials, a guide piece is arranged on the outer side of the material guide cylinder and used for guiding the plastic film coiled materials to be curled into a cylindrical shape surrounding the material guide cylinder, the traction assembly comprises a driving wheel set, a driven wheel set and a driving piece, the driving piece drives the driving wheel set to drive the driven wheel set to rotate, the driving wheel set comprises a driving shaft, a first driving wheel and a second driving wheel, and the driven wheel set comprises a driven shaft, a first driven wheel and a second driven wheel; the first driving wheel and the second driving wheel roll the two sides of the plastic film coiled material which are connected in a hot-pressing mode together, and the second driving wheel and the second driven wheel roll the side, far away from the two sides of the plastic film coiled material which is connected in the hot-pressing mode, together. This application can improve the stability of pulling the subassembly and pull plastic film coiled material in-process.

Description

Automatic feeding mechanism of packaging machine

Technical Field

The application relates to the field of packaging technology, in particular to an automatic feeding mechanism of a packaging machine.

Background

With the progress of production technology, automated production is gradually popularized in the production and manufacturing industry, and in the field of material packaging, the packaging technology is mainly automated packaging.

In the common three-side packaging technology in the prior art, referring to fig. 1, the main process is that after a plastic film coiled material is bent into a tube shape, the two side edges of the plastic film coiled material, which are close to each other, are bent and hot-pressed for packaging, so that the peripheral side of the plastic film is closed, then the plastic film bent into the tube shape is hot-pressed and cut off at the same time, both sides of the cut-off part are in a hot-pressed packaging state, and through continuous packaging operation, three-side packaged packaging bags can be continuously formed.

Because the plastic film coiled material is flexible material, when the plastic film coiled material unreels, need apply the traction force to the position that the plastic film coiled material is close to the encapsulation operation, and the crooked tube-shape back of plastic film coiled material, its inside material that holds to exert traction force to the one side that the plastic film coiled material is on a parallel with length direction usually, make the plastic film coiled material receive the traction force the equilibrium degree relatively poor, make the process stability that the plastic film coiled material removed not enough.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that the traction force balance degree is poor when the plastic film coiled material is dragged to unreel, the application provides a packagine machine's automatic feeding mechanism.

The application provides a packagine machine's dynamic sending machine adopts following technical scheme:

the utility model provides a packagine machine's dynamic sending machine which characterized in that: comprises a frame, wherein the frame is sequentially provided with a placing frame, a material guide cylinder, a side hot-pressing assembly, a traction assembly and a hot-pressing cutting assembly from top to bottom, the placing rack is used for placing plastic film coiled materials, the outer side of the material guide cylinder is provided with a guide piece, the guide piece is used for guiding the plastic film coiled materials to curl into a cylindrical shape surrounding the material guide cylinder, the side edge hot-pressing assembly is used for pressing and pressing two side edges of the plastic film coiled material bent into a cylinder shape, the hot-pressing cutting assembly is used for sealing and cutting the plastic film coiled material bent into the cylinder shape, the traction assembly comprises a driving wheel set, a driven wheel set and a driving piece, the driving piece drives the driving wheel set to drive the driven wheel set to rotate, the driving wheel set comprises a driving shaft, a first driving wheel and a second driving wheel, and the driven wheel set comprises a driven shaft, a first driven wheel and a second driven wheel; the first driving wheel and the second driving wheel roll the two sides of the plastic film coiled material in the hot-pressing connection together, and the second driving wheel and the second driven wheel roll the side of the plastic film coiled material far away from the two sides of the hot-pressing connection together.

By adopting the technical scheme, the plastic film coiled material is unreeled under the traction of the traction assembly, the plastic film coiled material passes through the material guide cylinder and the side hot pressing assembly when being unreeled, the guide piece outside the material guide cylinder guides the plastic film coiled material to be bent into a cylindrical shape surrounding the material guide cylinder, and when the plastic film coiled material passes through the side hot pressing assembly in the cylindrical shape, two side edges of the plastic film coiled material are connected in a hot pressing manner; when the plastic film coiled material continues to move downwards, the two side edges of the hot-pressing connection of the plastic film coiled material are subjected to the rolling driving action of the first driving wheel and the first driven wheel, the two side edges of the plastic film coiled material far away from the hot-pressing connection of the plastic film coiled material are subjected to the rolling driving action of the second driving wheel and the second driven wheel, the two opposite sides of the plastic film coiled material which is hot-pressed into a cylindrical shape are simultaneously subjected to the rolling driving action, the plastic film coiled material is favorably stressed more evenly, and therefore the stability of the plastic film coiled material in moving is favorably guaranteed.

Optionally, the driving shaft is equipped with two circular shape spacing pieces, the diameter of spacing piece is greater than the diameter of first action wheel and the diameter of second action wheel, two spacing piece with the driving shaft is perpendicular, first action wheel with the second action wheel all is located two between the spacing piece, first action wheel with the second action wheel is one of them spacing piece of butt respectively.

Through adopting above-mentioned technical scheme, the plastic film coiled material of tube-shape form forms flat coincide's state when receiving the roll-in of traction assembly and pulling, and the in-process that the plastic film coiled material unreeled downwards, the plastic film coiled material is whole to be removed along vertical direction to along the axial drunkenness of driving shaft appears inevitably, through setting up two spacing pieces, can restrict the plastic film coiled material of tube-shape form along the axial drunkenness of driving shaft.

Optionally, the limiting sheet is a polytetrafluoroethylene sheet.

By adopting the technical scheme, the polytetrafluoroethylene has self-lubricating property, and is beneficial to reducing the friction resistance effect on the plastic film coiled material in the downward moving process.

Optionally, the peripheral surfaces of the first driving wheel and the second driving wheel are provided with anti-slip lines, and the line directions of the anti-slip lines are arranged along the axial direction.

Through adopting above-mentioned technical scheme, the antiskid line on first action wheel and second driving wheel surface is favorable to increasing the effort that driving wheel group and driven wheelset roll-in drove the plastic film coiled material.

Optionally, a rubber layer is arranged on the surface of the first driven wheel and the second driven wheel.

Through adopting above-mentioned technical scheme, the antiskid line on first action wheel and second driving wheel surface forms tiny dogtooth, can form the effect of meshing when the antiskid line passes through plastic film coiled material extrusion rubber layer to make first action wheel and first driven wheel form the effect that the meshing drove to the plastic film coiled material, and make second action wheel and second driven wheel form the effect that the meshing drove to the plastic film coiled material, be favorable to promoting the efficiency that the subassembly of pulling pulls the plastic film coiled material.

Optionally, one end of the driving shaft is provided with a first external thread, the second driving wheel is in threaded connection with the driving shaft, the driving shaft is sleeved with a first limiting sleeve, and the first limiting sleeve is located between the first driving wheel and the second driving wheel; one end of the driven shaft is provided with a second external thread, the second driven wheel is in threaded connection with the driven shaft, the driven shaft is provided with a second limiting sleeve, and the second limiting sleeve is located between the first driven wheel and the second driven wheel.

By adopting the technical scheme, the second driving wheel is in threaded connection with the driving shaft, the first limiting sleeve limits the distance between the first driving wheel and the second driving wheel, the second driven wheel is in threaded connection with the second driven shaft, and the second limiting sleeve limits the distance between the first driven wheel and the second driven wheel; the packaging requirements of different widths can be met by replacing different first limiting sleeves and second limiting sleeves.

Optionally, the surfaces of the first limit sleeve and the second limit sleeve are coated with rubber coatings.

Through adopting above-mentioned technical scheme, through setting up rubber coating, can increase the frictional damping between first spacing sleeve pipe terminal surface and the second action wheel to and increase the frictional damping between second spacing sleeve pipe terminal surface and the second follow driving wheel, thereby reduce the second action wheel and the second condition of following the not hard up spiral of driving wheel.

Optionally, the screwing direction of the second driving wheel is opposite to the rotation direction of the second driving wheel; the screwing direction of the second driven wheel is opposite to the rotating direction of the second driven wheel.

By adopting the technical scheme, when the second driving wheel and the second driven wheel roll-press and drive the plastic film coiled material, the friction force opposite to the respective rotating directions is respectively applied, the screwing direction of the second driving wheel is opposite to the rotating direction of the second driving wheel, and the screwing direction of the second driven wheel is opposite to the rotating direction of the second driven wheel, so that the loosening and falling conditions of the second driving wheel and the second driven wheel can be reduced.

In summary, the present application includes at least one of the following beneficial technical effects:

the opposite two sides of the plastic film coiled material which is hot-pressed into the cylindrical shape are simultaneously driven by rolling, so that the plastic film coiled material is favorably balanced in stress, and the moving stability of the plastic film coiled material is favorably ensured;

when the plastic film coiled material in the cylindrical shape is dragged by the rolling of the traction assembly, a flat overlapped state is formed, the plastic film coiled material integrally moves in the vertical direction in the process of unreeling downwards, and the plastic film coiled material is inevitably subjected to axial movement along the driving shaft.

Drawings

Fig. 1 is a schematic diagram of a prior art process for three-sided packaging of a web of plastic film.

Fig. 2 is a schematic view of the overall structure of the present embodiment.

Fig. 3 is a partial enlarged view at a in fig. 1.

Fig. 4 is a schematic diagram of the present embodiment for showing the mounting position of the driving member.

Fig. 5 is an exploded view of the structure of the present embodiment for embodying the tow assembly.

Fig. 6 is a schematic diagram of the operation of the present embodiment.

Description of reference numerals: 1. a frame; 2. placing a rack; 21. a round bar; 22. a column; 23. a limit nut; 3. a material guide cylinder; 31. a funnel part; 32. a tubular portion; 33. a guide member; 4. a side edge hot pressing component; 41. a first cylinder; 42. a first hot-pressing block; 5. a traction assembly; 51. a driving wheel set; 511. a drive shaft; 5111. a first external thread; 512. a first drive wheel; 513. a second drive wheel; 514. anti-skid lines; 515. a first limit sleeve; 52. a driven wheel set; 521. a driven shaft; 5211. a second external thread; 522. a first driven wheel; 523. a second driven wheel; 524. a rubber layer; 525. a second limit sleeve; 526. a limiting sheet; 53. a drive member; 54. a fixed seat; 55. a motor base; 56. a coupling; 6. hot pressing the cut-off assembly; 61. a second cylinder; 62. a mounting seat; 63. a bolt and nut assembly; 64. connecting blocks; 65. a slide bar; 66. a spring; 67. a nut; 68. a second hot-pressing block; 681. grooving; 69. a cutter; 691. a screw nut assembly; 7. a plastic film web.

Detailed Description

The present application is described in further detail below with reference to figures 2-6.

The embodiment of the application discloses packagine machine's dynamic sending machine. Referring to fig. 2, the automatic feeding mechanism of the packaging machine comprises a frame 1, and the frame 1 is sequentially provided with a placing frame 2, a material guide cylinder 3, a side hot-pressing assembly 4, a traction assembly 5 and a hot-pressing cutting assembly 6 from top to bottom; a guide member 33 is provided outside the guide cylinder 3.

Referring to fig. 2, the rack 1 is box-shaped, the rack 2 includes a round bar 21 for penetrating the plastic film coiled material 7, one end of the round bar 21 is provided with a column 22 for connecting the rack 1, and the other end of the round bar 21 is provided with a limit nut 23 for limiting the plastic film coiled material 7 to move along the axial direction.

Referring to fig. 2, the material guiding cylinder 3 comprises a funnel part 31 and a tubular part 32, the funnel part 31 is positioned above the tubular part 32, the large end of the funnel part 31 is opened upwards, and materials enter the material guiding cylinder 3 from the funnel part 31; the guide members 33 are bent members of a semi-enclosed structure, two ends of each guide member 33 are fixedly connected with the outer wall of the funnel part 31, a gap for the plastic film coiled material 7 to pass through is formed between each guide member 33 and the outer wall of the funnel part 31, the number of the guide members 33 is two, the two guide members 33 are arranged along the height direction in a staggered mode, and the size of each guide member 33 is adjusted according to the change of the cross section of the guide cylinder 3.

Referring to fig. 2, the side hot-pressing assembly 4 is located between the upper end and the lower end of the tubular portion 32, the side hot-pressing assembly 4 includes two first cylinders 41, the first cylinders 41 are biaxial cylinders, the first cylinders 41 are fixedly connected to the frame 1, output ends of the two first cylinders 41 are arranged oppositely, and piston rods of the two first cylinders 41 are connected to a first hot-pressing block 42; the side edge hot press unit 4 hot presses both side edges of the plastic film roll 7 to form the plastic film roll 7 into a cylindrical shape surrounding the tubular portion 32.

With reference to fig. 3 and 4, the traction assembly 5 comprises a driving wheel set 51, a driven wheel set 52 and a driving element 53; the driving wheel set 51 comprises a driving shaft 511, a first driving wheel 512 and a second driving wheel 513, the driven wheel set 52 comprises a driven shaft 521, a first driven wheel 522 and a second driven wheel 523, the driving shaft 511 and the driven shaft 521 are arranged in a parallel staggered manner along the horizontal direction, the driving shaft 511 and the driven shaft 521 penetrate through the side wall of the rack 1, and a fixed seat 54 for rotatably connecting the driving shaft 511 and the driven shaft 521 is fixedly arranged on the inner wall of the rack 1; the driving part 53 is a motor, the inner wall of the case is fixedly provided with a motor seat 55 for mounting the motor, a coupling 56 is connected between the output shaft of the motor and the driving shaft 511, and the motor drives the driving wheel set 51 to drive the driven wheel set 52 to rotate; when the traction assembly 5 works, the first driving wheel 512 and the second driving wheel 513 roll the two sides of the plastic film coiled material 7 in the hot-pressing connection together, the second driving wheel 513 and the second driven wheel 523 roll the side of the plastic film coiled material 7 away from the two sides of the hot-pressing connection together, and the cylindrical plastic film coiled material 7 is overlapped into a flat shape under the rolling driving of the driving wheel set 51 and the driven wheel set 52.

Referring to fig. 3, the outer peripheral surfaces of the first driving wheel 512 and the second driving wheel 513 are provided with anti-slip stripes 514, the grain directions of the anti-slip stripes 514 are arranged along the axial direction of the driving shaft 511, the first driven wheel 522 and the second driven wheel 523 are provided with rubber layers 524, and when the driving wheel set 51 drives the driven wheel set 52 to rotate, the grain extrusion rubber layers 524 of the anti-slip stripes 514 form an approximately meshed effect, which is more beneficial to driving the plastic film coiled material 7 to unreel.

Referring to fig. 3 and 5, a first driving wheel 512 is fixedly connected with a driving shaft 511, one end of the driving shaft 511, which is far away from a driving part 53, is provided with a first external thread 5111, a second driving wheel 513 is in threaded connection with the driving shaft 511, the screwing direction of the second driving wheel 513 is opposite to the rotating direction of the second driving wheel 513, the driving shaft 511 is sleeved with a first limiting sleeve 515, and the first limiting sleeve 515 is located between the first driving wheel 512 and the second driving wheel 513; the first driven wheel 522 is fixedly connected with the driven shaft 521, one end of the driven shaft 521, which is far away from the driving part 53, is provided with a second external thread 5211, the second driven wheel 523 is in threaded connection with the driven shaft 521, the screwing direction of the second driven wheel 523 is opposite to the rotating direction of the second driven wheel 523, the driven shaft 521 is sleeved with a second limiting sleeve 525, and the second limiting sleeve 525 is positioned between the first driven wheel 522 and the second driven wheel 523; when the second driving wheel 513 and the second driven wheel 523 roll and draw the plastic film roll 7 together, the second driving wheel 513 and the second driven wheel 523 receive an acting force in a direction opposite to the rotation direction, and the direction of the acting force received by the second driving wheel 513 and the second driven wheel 523 is the same as the screwing direction, so that the second driving wheel 513 and the second driven wheel 523 are not easy to loosen and fall off.

Referring to fig. 5, the driving shaft 511 is provided with two circular limiting pieces 526, the limiting pieces 526 are polytetrafluoroethylene pieces, the diameter of the limiting pieces 526 is larger than the diameter of the first driving wheel 512 and the second driving wheel 513, the two limiting pieces 526 are perpendicular to the driving shaft 511 respectively, the first driving wheel 512 and the second driving wheel 513 are located between the two limiting pieces 526, one side of the first driving wheel 512 and one side of the second driving wheel 513, which are deviated from each other, are abutted to one of the limiting pieces 526 respectively, and the two limiting pieces 526 are connected to the corresponding first driving wheel 512 or the second driving wheel 513 through bolts respectively. The two limiting pieces 526 jointly limit the play of the plastic film coil 7 which is overlapped into a flat shape along the axial direction of the driving shaft 511.

Referring to fig. 3, hot pressing cuts off subassembly 6 includes two relative second cylinders 61 that set up, two second cylinders 61 are the biax cylinder, two piston rods of second cylinder 61 are connected with mount pad 62 jointly, mount pad 62 is connected with connecting block 64 through two sets of bolt and nut subassemblies 63, connecting block 64 wears to be equipped with two slide bars 65, slide bar 65 is parallel with the piston rod of second cylinder 61, the one end that mount pad 62 was kept away from to two slide bars 65 is connected with second hot pressing block 68 jointly, the one end threaded connection that second hot pressing block 68 was kept away from to slide bar 65 has nut 67, slide bar 65 overlaps and is equipped with spring 66, the one end butt connecting block 64 of spring 66, other end butt second hot pressing block 68, spring 66 forces nut 67 butt connecting block 64 to keep away from one side of second hot pressing block 68. The opposite sides of the two second hot pressing blocks 68 are provided with cutting grooves 681, the cutting grooves 681 are through grooves extending in the horizontal direction, a cutter 69 is arranged in one of the cutting grooves 681, the edge of the cutter 69 is flush with the hot pressing working face of the hot pressing block, two sides of the cutter 69 penetrate through the opposite sides of the second hot pressing blocks 68 along the extending direction of the cutting grooves 681, and two sides of the cutter 69 extending out of the cutting grooves 681 are fixedly connected with the connecting block 64 through a screw nut assembly 691.

When the piston rods of the two second air cylinders 61 move in opposite directions, the two second air cylinders 61 respectively push the two second hot pressing blocks 68 to heat and press the plastic film coiled material 7 together, and with the increase of the pressure between the two second hot pressing blocks 68, the springs 66 are compressed, so that the two second hot pressing blocks 68 are close to the connecting blocks 64, and the cutter 69 is fixed relative to the connecting blocks 64 connected with the cutter 69, so that the edge of the cutter 69 is exposed out of the cutting groove 681 and inserted into the cutting groove 681 of the opposite second hot pressing block 68, and the plastic film coiled material 7 in an overlapped state is cut off; the two ends of the cut of the plastic film coiled material 7 are in a heat sealing state, so that the plastic film coiled material 7 above can contain materials, and when the plastic film coiled material 7 above is cut off again, a three-side sealing state can be formed.

Referring to fig. 6, the implementation principle of the automatic feeding mechanism of the packaging machine according to the embodiment of the present application is as follows: the plastic film coiled material 7 is placed on the placing rack 2, the traction assembly 5 pulls the plastic film coiled material 7 to unreel from top to bottom, the plastic film coiled material 7 sequentially passes through the material guide cylinder 3 and the side edge hot pressing assembly 4, the guide piece 33 guides the plastic film coiled material 7 to curl into a cylindrical shape surrounding the material guide cylinder 3, the side edge hot pressing assembly 4 is used for hot-pressing and connecting two side edges of the plastic film coiled material 7 bent into the cylindrical shape, the plastic film coiled material 7 is cut and packaged under the action of the hot pressing cutting assembly 6 after passing through the traction assembly 5, and two ends of the cut of the plastic film coiled material 7 are subjected to heat sealing action, so that the plastic film coiled material 7 can contain materials guided by the material guide cylinder 3 when being rolled into the cylindrical shape; and when the upper web 7 of plastic film is cut again, a three-edge-sealed, closed package can be formed.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. The utility model provides a packagine machine's dynamic sending machine which characterized in that: comprises a frame (1), the frame (1) is sequentially provided with a placing rack (2), a material guide cylinder (3), a side hot-pressing component (4), a traction component (5) and a hot-pressing cutting component (6) from top to bottom, the placing rack (2) is used for placing plastic film coiled materials (7), the outer side of the material guide cylinder (3) is provided with a guide part (33), the guide part (33) is used for guiding the plastic film coiled materials (7) to be curled into a cylindrical shape surrounding the material guide cylinder (3), the side hot-pressing component (4) is used for pressing and bending into two side edges of the cylindrical plastic film coiled materials (7), the hot-pressing cutting component (6) is used for sealing and cutting off the cylindrical plastic film coiled materials (7), the traction component (5) comprises a driving wheel set (51), a driven wheel set (52) and a driving piece (53), the driving piece (53) drives the driving wheel set (51) to drive the driven wheel set (52) to rotate, the driving wheel set (51) comprises a driving shaft (511), a first driving wheel (512) and a second driving wheel (513), and the driven wheel set (52) comprises a driven shaft (521), a first driven wheel (522) and a second driven wheel (523); the first driving wheel (512) and the second driving wheel (513) roll the two sides of the plastic film coiled material (7) in a hot-pressing connection mode together, and the second driving wheel (513) and the second driven wheel (523) roll the side, far away from the two sides of the plastic film coiled material (7) in the hot-pressing connection mode, together.

2. The automatic feeding mechanism of a packing machine according to claim 1, wherein: the driving shaft (511) is provided with two circular limiting pieces (526), the diameter of the limiting piece (526) is larger than the diameter of the first driving wheel (512) and the diameter of the second driving wheel (513), two the limiting piece (526) is perpendicular to the driving shaft (511), the first driving wheel (512) and the second driving wheel (513) are both located between the limiting pieces (526), and the first driving wheel (512) and the second driving wheel (513) are respectively abutted to one of the limiting pieces (526).

3. The automatic feeding mechanism of a packing machine according to claim 2, wherein: the limiting sheet (526) is a polytetrafluoroethylene sheet.

4. The automatic feeding mechanism of a packing machine according to claim 1, wherein: the outer peripheral surfaces of the first driving wheel (512) and the second driving wheel (513) are provided with anti-skidding lines (514), and the line directions of the anti-skidding lines (514) are arranged along the axial direction.

5. The automatic feeding mechanism of a packing machine according to claim 4, wherein: rubber layers (524) are arranged on the surfaces of the first driven wheel (522) and the second driven wheel (523).

6. The automatic feeding mechanism of a packing machine according to claim 1, wherein: one end of the driving shaft (511) is provided with a first external thread (5111), the second driving wheel (513) is in threaded connection with the driving shaft (511), the driving shaft (511) is sleeved with a first limiting sleeve (515), and the first limiting sleeve (515) is positioned between the first driving wheel (512) and the second driving wheel (513); one end of the driven shaft (521) is provided with a second external thread (5211), the second driven wheel (523) is in threaded connection with the driven shaft (521), the driven shaft (521) is provided with a second limiting sleeve (525), and the second limiting sleeve (525) is positioned between the first driven wheel (522) and the second driven wheel (523).

7. The automatic feeding mechanism of a packing machine according to claim 6, wherein: the surfaces of the first position limiting sleeve (515) and the second position limiting sleeve (525) are coated with rubber coatings.

8. The automatic feeding mechanism of a packing machine according to claim 6, wherein: the screwing direction of the second driving wheel (513) is opposite to the rotating direction of the second driving wheel (513); the direction of screwing the second driven wheel (523) is opposite to the direction of rotation of the second driven wheel (523).

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