CN111284775A

CN111284775A - Bag clamping mechanism for M bags

Info

Publication number: CN111284775A
Application number: CN202010243916.5A
Authority: CN
Inventors: 倪合青; 汪东; 胡思琪
Original assignee: ANHUI XINYUAN PACKAGING TECHNOLOGY CO LTD
Current assignee: ANHUI XINYUAN PACKAGING TECHNOLOGY CO LTD
Priority date: 2020-03-31
Filing date: 2020-03-31
Publication date: 2020-06-16

Abstract

The invention aims to provide a bag clamping mechanism for an M-shaped bag, which is simple in structure and stable in transmission, in order to keep the folded edge of the M-shaped bag, the folded edge is clamped by two clamping plates, a suspension arm rotates around a first hinge shaft to adjust the distance between the two clamping plates and a barrel so as to adapt to packaging bags of different specifications, the two clamping plates are synchronously opened around a second hinge shaft so that the packaging bags can enter between the two clamping plates or be pulled out from between the two clamping plates, the two clamping plates synchronously approach to clamp the M-shaped folded edge of the packaging bag, only one suspension arm is arranged in the structure, the two clamping plates synchronously approach or separate from each other, the structure is simple, the transmission is stable, and.

Description

Bag clamping mechanism for M bags

Technical Field

The invention relates to the technical field of packaging machinery, in particular to a bag clamping mechanism for M bags.

Background

The particle and powder packaging adopts a plurality of types of packaging bags, and when the common packaging bags are used for packaging, the bag clamping device clamps the packaging bags to finish blanking, so that automatic blanking is finished; after the blanking is finished, bag opening rods positioned on two sides of the bag clamping device are pre-stretched into the bag openings to apply force, the bag openings of the packaging bags are spread and then sent to a bag pushing device, and the packaging bags are folded and sewn in a follow-up process. However, such a bag holder is only suitable for a linear packaging bag, is not suitable for an M-shaped packaging bag (i.e., a packaging bag with an M-shaped folding bag opening), and cannot restore the M-shaped packaging bag opening after the material is filled, so that the subsequent process cannot be continued.

In order to solve the above problems, chinese patent entitled "a multifunctional automatic lifting bag clamp" (application No. 201910298960.3) discloses the following technical solutions: comprises a material guiding cylinder 1 and a bag clamping main body 2, wherein the material guiding cylinder 1 is fixedly connected with the bag clamping main body 2, bag clamping devices 100 are arranged on two sides of the material guiding cylinder 1, two sides of the bag clamping main body 2 are provided with bag pressing devices 200 which comprise lifting mechanisms 101 and clamping mechanisms 102, the lifting mechanism 101 is connected with a clamping mechanism 102, the clamping mechanism comprises a clamping cylinder 17, a crank arm shaft 18, a clamping plate 19, a fixed block 20, a side plate 21 and a cylinder mounting plate 22, the fixed block 20 is connected with the main swing arm 4 through a swing arm pin 23, the cylinder mounting plate 22 is connected with the fixed block 20 through a hexagon bolt 24, the side plate 21 is connected with the side of the fixed block 20 through a screw 25, the clamping cylinder 17 is arranged on the cylinder mounting plate 22, the clamping cylinder 17 is connected to the crank shaft 18 via a first fish eye joint 26, and the crank shaft 18 is connected to the side plate 21 via a shaft 27. In the above scheme, as shown in fig. 1, in order to fix the clamping cylinder 17, a series of components including the fixing block 20, the side plate 21 and the cylinder mounting plate 22 are provided, and in order to realize stable connection of the fixing block 20, the side plate 21, the cylinder mounting plate 22 and the clamping cylinder 17, two main swing arms 4 are provided on two sides, so that the clamping cylinder has many parts, large volume, complex structure and large energy consumption.

Disclosure of Invention

The invention aims to provide a bag clamping mechanism for an M-shaped bag, which is simple in structure and stable in transmission.

In order to achieve the purpose, the invention adopts the technical scheme that: the utility model provides a bag clamping mechanism of M bag, is provided with the guide cylinder in the frame, both sides are provided with the bag pressing unit around the guide cylinder, the left and right sides is provided with the bag clamping unit, the bag clamping unit include the davit, the mounting plate that sets up in the upper end of davit and the frame is articulated, the axle core of first articulated shaft be located the horizontal plane and with guide cylinder left and right sides barrel place face parallel arrangement, power drive davit rotates round first articulated shaft, the articulated two splint that are connected with of lower extreme of davit, the axle core of second articulated shaft be located the horizontal plane and with the axle core vertical arrangement of first articulated shaft, the two splint of power drive rotate around the second articulated shaft is synchronous to the tight position of clamp that is close to each other or the bagging position of keeping away from each.

In the above-mentioned scheme, in order to keep the gesture of M bag hem, adopt two splint to carry out the centre gripping to the hem here, the davit rotates the wrapping bag that is used for adjusting the distance of two splint and barrel in order to adapt to different specifications round first articulated shaft, two splint are opened in step around the second articulated shaft and are convenient for the wrapping bag get into between two splint or take out from between two splint, two splint are close to the M hem with the wrapping bag in step and are pressed from both sides tightly, this kind of structure only sets up a davit and two splint and is close to in step or keep away from, the transmission is steady when simple structure, and the commonality is.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 and 3 are partially enlarged schematic views of fig. 1.

Detailed Description

As shown in fig. 1-3, a bag clamping mechanism for M-shaped bags is provided, wherein a material guiding cylinder 10 is disposed on a frame, bag pressing units 20 are disposed on front and rear sides of the material guiding cylinder 10, bag clamping units 30 are disposed on left and right sides of the material guiding cylinder 10, the material guiding cylinder 10 includes a suspension arm 31, an upper end of the suspension arm 31 is hinged to a mounting plate 41 disposed on the frame, a shaft core of a first hinge shaft 42 is located in a horizontal plane and is arranged in parallel with surfaces of cylinders on left and right sides of the material guiding cylinder 10, the suspension arm 31 is driven by power to rotate around the first hinge shaft 42, a lower end of the suspension arm 31 is hinged to connect two clamping plates 32, a shaft core of a second hinge shaft 33 is located in the horizontal plane and is arranged perpendicular to the shaft core of the first hinge shaft 42, and the two clamping plates 32 are driven by power to. When the packaging bag is transferred to the lower part of the guide cylinder 10 by the bag feeding mechanism, the bag clamping unit 30 firstly acts, the suspension arm 31 rotates around the first hinge shaft 42 until the distance between the two clamping plates 32 and the cylinder body is matched with the specification of the packaging bag, at the moment, the two clamping plates 32 are located at bag sleeving positions which are far away from each other, then the two clamping plates 32 are driven by power to synchronously approach around the second hinge shaft 33 to clamp the M folded edge of the packaging bag, the folded edge posture is kept, the bag pressing unit 20 acts to tightly press the bag openings on the front side and the rear side of the packaging bag on the cylinder walls on the front side and the rear side of the guide cylinder 10, and at the moment, the material can be received. Meanwhile, the two clamping plates 32 are synchronously close to or far away from each other, so that the central lines of the two clamping plates 32 are always kept unchanged, and the clamped position of each packaging bag is fixed, so that the packaging bags are positioned right below the opening of the material guide cylinder 10, and the material is smoothly loaded.

Further, the splint 32 is fixed at the lower extreme of swing arm 34, swing arm 34 includes mutually parallel first riser 341 and second riser 342, it is even as an organic whole by diaphragm 343 between first,

second riser

341, 342, splint 32 is fixed in the lower extreme position department of second riser 342, second riser 342 and diaphragm 343 hookup location department are fixed with gear 35, gear 35 is articulated with the lower extreme of davit 31 through second articulated shaft 33, two gear 35 meshing transmissions on two swing arms 34, two swing arms 34 of power drive rotate around respective axle center. The two swing arms 34 are in meshing transmission through the gears 35, as long as one swing arm 34 is driven to rotate, the other swing arm 34 also rotates, and the two clamping plates 32 at the lower ends of the two swing arms 34 synchronously move close to or away from the midline.

Specifically, a first cylinder 36 is arranged between the two swing arms 34, a cylinder body of the first cylinder 36 is hinged to the end of the first vertical plate 341 of one swing arm 34, a piston rod is hinged to the end of the first vertical plate 341 of the other swing arm 34 through a fisheye bearing, and a shaft core of the third hinge shaft 37 is arranged in parallel with a shaft core of the second hinge shaft 33. The synchronous action of the two swing arms 34 can be realized by only arranging one first air cylinder 36, and the structure is simple and the arrangement is flexible.

In order to realize the rotation of the suspension arm 31, the suspension arm 31 is in a long plate shape, a hollow part 311 is arranged in the middle of the plate body, the cylinder body of the second air cylinder 38 is hinged with the first hinge seat 43 on the mounting plate 41, the piston rod passes through the hollow part 311 through a fisheye bearing and is hinged with a hinge plate 312 arranged on the plate body around the hollow part 311, and the axis core of the fourth hinge shaft 39 is arranged in parallel with the first hinge shaft 42. The second cylinder 38 is arranged between the suspension arm 31 and the cylinder wall, and the piston rod is hinged with the hinge plate 312 after passing through the hollow part 311, so that the structure is compact, and the arrangement of other peripheral components is convenient.

Further, a polyurethane plate is arranged on the plate body adjacent to the two clamping plates 32, saw teeth are arranged on the polyurethane plate, and the saw teeth mouths on the two polyurethane plates are embedded with each other when the clamping positions are clamped. The polyurethane board set up, on the one hand prevents to press from both sides the in-process and causes destruction to the wrapping bag, and on the other hand has increased frictional force again, and the centre gripping is more firm.

The bag pressing unit 20 comprises a pressing plate 21, the lower end of a connecting rod 22 is fixedly connected with the back surface of the pressing plate 21, the upper end of the connecting rod is hinged with the material guide cylinder 10, the shaft core of a fifth hinge shaft 221 is positioned in the horizontal plane and is arranged in parallel with the surfaces of the cylinder bodies on the front side and the rear side of the material guide cylinder 10, the cylinder body of a third cylinder 23 is hinged with the cylinder wall of the material guide cylinder 10, the piston rod is hinged with a hinge plate 24 fixed on the back surface of the pressing plate 21 through a fisheye bearing, and the shaft core of a sixth hinge shaft 25 is arranged in parallel. The connecting rod 25 is fixed on the wall of the material guiding barrel 10, the connecting rod 22 is hinged to the connecting rod 25 through a fifth hinge shaft 221, the cylinder body of the fourth cylinder 26 is hinged to the second hinge seat 44 on the mounting plate 41, the piston rod is hinged to the connecting rod 25 through a fisheye bearing, the shaft core of the seventh hinge shaft 27 is arranged in parallel to the shaft core of the fifth hinge shaft 221, the lower part of the material guiding barrel 10 is formed by buckling two half bodies, and the fourth cylinder 26 drives the two half bodies to rotate around the seventh hinge shaft 27 to drive the feed openings of the two half bodies to be opened and closed.

The first two halves are closed and the material is cut off, in which the third cylinder 23 drives the pressing plate 21 to rotate around the fifth hinge shaft 221 and the sixth hinge shaft 25, the pressing plate 21 presses the bag mouth against the wall of the bag, and then the fourth cylinder 26 drives the halves to rotate around the seventh hinge shaft 27, while the pressing plate 21 is still pressed against the wall and the lower mouths of the two halves are opened and the material falls down as the halves rotate synchronously, which provides the advantage of effectively preventing the material (especially the powdery material) from overflowing. After the loading is finished, the pressing plate 21 synchronously rotates along with the half bodies until the lower openings of the two half bodies are closed, after the materials are cut off, the third air cylinder 23 drives the pressing plate 21 to rotate around the fifth hinging shaft 221 and the sixth hinging shaft 25, and the pressing plate 21 is withdrawn from the cylinder wall.

The upper end of the guide cylinder 10 is fixed on the substrate 45, the mounting plate 41 is arranged below the substrate 45, the surfaces of the mounting plate and the substrate 45 are parallel to each other, the substrate 45 is provided with a fifth cylinder 46, the rod core of the piston rod of the fifth cylinder 46 is arranged in the vertical direction, the piston rod of the fifth cylinder 46 penetrates through the substrate 45 and then is connected with the mounting plate 41, and the fifth cylinder 46 drives the mounting plate 41 to drive the bag pressing unit 20 and the bag clamping unit 30 to move up and down. The base plate 45 is fixed on the rack, and the mounting plate 41 can move up and down relative to the base plate 45, so that the material guide cylinder is suitable for packaging bags with different specifications on one hand, and the lower end of the material guide cylinder 10 enters or withdraws from a packaging bag opening on the other hand.

In order to ensure the stability of the mounting plate 41 and the series of components attached thereto during the vertical movement, the four corners of the mounting plate 41 are each provided with a guide post 47, and the guide posts 47 pass through the holes formed in the base plate 45 and form a guide fit.

The invention is not only suitable for the M-shaped bag, but also suitable for the common straight-line-shaped packaging bag.

Claims

1. The utility model provides a press from both sides bag mechanism of M bag is provided with guide cylinder (10) in the frame, and both sides are provided with presses bag unit (20) around guide cylinder (10), and the left and right sides is provided with presss from both sides bag unit (30), its characterized in that: bag clamping unit (30) include davit (31), the upper end of davit (31) is articulated with mounting panel (41) that set up in the frame, the axle core of first articulated shaft (42) is located the horizontal plane and with guide cylinder (10) left and right sides barrel place face parallel arrangement, power drive davit (31) rotate round first articulated shaft (42), the articulated two splint (32) that are connected with of lower extreme of davit (31), the axle core of second articulated shaft (33) is located the horizontal plane and arranges perpendicularly with the axle core of first articulated shaft (42), two splint (32) of power drive rotate around second articulated shaft (33) synchronous to the tight position of clamp that is close to each other or the bagging position of keeping away from each other.

2. The M-bag clamp mechanism of claim 1, wherein: splint (32) are fixed at the lower extreme of swing arm (34), swing arm (34) are including first riser (341) and second riser (342) that are parallel to each other, it is first, link as an organic whole by diaphragm (343) between two riser (341, 342), splint (32) are fixed in the lower extreme position department of second riser (342), second riser (342) and diaphragm (343) hookup location department are fixed with gear (35), gear (35) are articulated through the lower extreme of second articulated shaft (33) and davit (31), two gear (35) meshing transmission on two swing arm (34), two swing arm (34) of power drive rotate round respective axle core.

3. The M-bag clamp mechanism of claim 2, wherein: a first air cylinder (36) is arranged between the two swing arms (34), the cylinder body of the first air cylinder (36) is hinged to the end of a first vertical plate (341) of one swing arm (34), a piston rod is hinged to the end of the first vertical plate (341) of the other swing arm (34) through a fisheye bearing, and the shaft core of a third hinge shaft (37) is arranged in parallel with the shaft core of a second hinge shaft (33).

4. The M-bag clamp mechanism of claim 3, wherein: the suspension arm (31) is in a long plate shape, a hollow part (311) is arranged in the middle of each plate body, the cylinder body of the second air cylinder (38) is hinged to the first hinge seat (43) on the mounting plate (41), the piston rod penetrates through the hollow part (311) through a fish-eye bearing and is hinged to hinge plates (312) arranged on the plate bodies on the periphery of the hollow part (311), and the shaft core of the fourth hinge shaft (39) is arranged in parallel to the first hinge shaft (42).

5. The M-bag clamp mechanism of claim 4, wherein: the polyurethane boards are arranged on the board bodies adjacent to the two clamping boards (32), the polyurethane boards are provided with sawteeth, and the sawteeth mouths on the two polyurethane boards are embedded with each other when the clamping positions are clamped.

6. The M-bag clamp mechanism of claim 1, wherein: the bag pressing unit (20) comprises a pressing plate (21), the lower end of a connecting rod (22) is fixedly connected with the back surface of the pressing plate (21), the upper end of the connecting rod is hinged with the material guide cylinder (10), the shaft core of a fifth hinged shaft (221) is located in the horizontal plane and is arranged in parallel with the surfaces of the cylinder bodies on the front side and the rear side of the material guide cylinder (10), the cylinder body of a third air cylinder (23) is hinged with the cylinder wall of the material guide cylinder (10), a piston rod is hinged with a hinged plate (24) fixed on the back surface of the pressing plate (21) through a fisheye bearing, and the shaft core of a sixth hinged shaft (25) is arranged in parallel with the shaft core of.

7. The M-bag clamp mechanism of claim 6, wherein: the wall of the material guide cylinder (10) is fixed with a connecting rod (28), the connecting rod (22) is hinged with the connecting rod (28) through a fifth hinged shaft (221), the cylinder body of a fourth cylinder (26) is hinged with a second hinged seat (44) on the mounting plate (41), the piston rod is hinged with the connecting rod (28) through a fisheye bearing, the shaft core of a seventh hinged shaft (27) and the shaft core of the fifth hinged shaft (221) are arranged in parallel, the lower part of the material guide cylinder (10) is formed by buckling two half bodies, and the fourth cylinder (26) drives the two half bodies to rotate around the seventh hinged shaft (27) to drive the feed openings of the two half bodies to open and close.

8. The M-bag clamp mechanism of claim 1, wherein: the upper end of the guide cylinder (10) is fixed on the base plate (45), the mounting plate (41) is arranged below the base plate (45), the surfaces of the mounting plate and the base plate are parallel to each other, a fifth cylinder (46) is arranged on the base plate (45), the rod core of the piston rod of the fifth cylinder (46) is arranged in the vertical direction, the piston rod of the fifth cylinder (46) penetrates through the base plate (45) and then is connected with the mounting plate (41), and the fifth cylinder (46) drives the mounting plate (41) to drive the bag pressing unit (20) and the bag clamping unit (30) to move up and down.

9. The M-bag clamp mechanism of claim 8, wherein: four corners of the mounting plate (41) are respectively provided with a guide post (47), and the guide posts (47) penetrate through holes formed in the base plate (45) to form guide matching.