CN114955143B - Automatic bag opening device - Google Patents

Abstract

The invention discloses an automatic bag opening device, relates to the technical field of plastic pipeline production, and has the advantages of being convenient for opening a material bag and saving labor cost, and the key points of the technical scheme are as follows: place subaerial feed bin and material buttress, set up track between feed bin and material buttress, the walking frame that traveles along the track including the one-to-one, walking frame upper end is equipped with the honeycomb duct, the one end of honeycomb duct extends walking frame outer wall and is located the feed bin top, the walking is equipped with the pocket of snatching on the material buttress and opens the pocket in the one end that deviates from the feed bin for the raw materials falls on the honeycomb duct and snatchs cutting structure.

Description

Automatic bag opening device

Technical Field

The invention relates to the technical field of plastic pipeline production, in particular to an automatic bag opening device.

Background

In the manufacturing process of plastic pipes, the operation of opening the bags of bagged raw material particles and then entering a production line is generally manual operation, and the problems of high labor intensity and high labor cost generally exist in the production process of large-scale factories with output of more than hundred tons every day.

Chinese patent No. CN212474245U discloses an automatic bag opening and feeding device for bagged granular materials, which comprises a frame, a traveling mechanism, a lifting mechanism, a bag grabbing mechanism, a cutting mechanism and a vibrating mechanism. A rack is arranged on the rack, the traveling mechanism comprises a traveling frame, a motor and a traveling gear driven by the motor, and the traveling gear is meshed with the rack; the lifting mechanism comprises a pneumatic brake, a lifting roller and a transmission rope, and the lifting roller is controlled to start and stop through a brake disc and the pneumatic brake; the bag grabbing mechanism comprises connecting rods and pneumatic clamping jaws, the pneumatic clamping jaws on adjacent connecting rods are oppositely arranged to form a bag grabbing space, and clamping jaw cylinders for driving the pneumatic clamping jaws to move relatively are respectively arranged on the adjacent connecting rods; the cutting mechanism comprises a cutting motor, a cutting shaft and a cutter, and the cutting motor is arranged at an inlet above the storage bin; the vibrating mechanism comprises a vibrating motor and a vibrating screen, and the inlet end of the vibrating screen is connected with a cutter on one side of the cutting shaft. The labor cost is saved. The application provides another pocket opening device.

Disclosure of Invention

Aiming at the technical defects, the invention aims to provide an automatic bag opening device which has the advantages of convenience in bag opening of material bags and labor cost saving.

In order to solve the technical problems, the invention adopts the following technical scheme:

the invention provides an automatic bag opening device which comprises a storage bin, a material stack, a track and a traveling frame, wherein the storage bin and the material stack are placed on the ground in a one-to-one correspondence mode, the track is arranged between the storage bin and the material stack, the traveling frame travels along the track, a flow guide pipe is arranged at the upper end of the traveling frame, one end of the flow guide pipe extends out of the outer wall of the traveling frame and is positioned above the storage bin, and a grabbing and cutting structure for grabbing a material bag on the material stack and cutting the material bag is arranged at one end, away from the storage bin, of the traveling frame, so that raw materials fall onto the flow guide pipe.

Through adopting above-mentioned technical scheme, place feed bin and stack one-to-one subaerial, when being convenient for like this toward blowing in the corresponding feed bin, the walking frame walks between corresponding feed bin and stack, and snatch the cutting structure and snatch and cut the pocket on the stack, make the raw materials fall in the water conservancy diversion pipe, and carry to the feed bin in by the honeycomb duct, the circulation is reciprocal, until this feed bin is filled up, the walking frame walks to another between to feed bin and stack afterwards, realize snatching and cutting of pocket, practice thrift the human cost.

Preferably, the walking frame includes the rectangle box that the opening went up, walking frame lower extreme is equipped with two pairs of gyro wheels that travel along the track, lateral wall and the other end that honeycomb duct one end slope extended walking frame are equipped with opening feeder hopper up, feeder hopper and honeycomb duct intercommunication, just the feeder hopper lateral wall is fixed on walking frame inner wall, the one end of honeycomb duct extends to the top of feed bin.

Preferably, the up end of walking frame upper end open-ended relative mouthful wall all is equipped with the guide rail, the one end of guide rail extends the walking frame and is located the top of material buttress, it is connected with the travelling car to slide on the guide rail, it sets up on the travelling car just to snatch the cutting structure set up on the walking frame offer supply snatch the cutting structure and get into in the walking frame and be located the breach of feeder hopper top, the travelling car includes the movable plate and sets up under the movable plate terminal surface and with two sets of pulleys of guide rail sliding connection, be equipped with drive pulley pivoted driving piece on the movable plate.

Preferably, snatch cutting structure including set up the gripping cutting unit that snatchs the pocket below the movable plate and will snatch cutting unit from vertical position upset to horizontal position's upset unit and drive upset unit and the lifting unit who snatchs the cutting unit and go up and down, lifting unit is the electric putter or the first cylinder of terminal surface under the movable plate, the upset unit sets up terminal surface under the body of rod of electric putter or first cylinder, it sets up on the upset unit to snatch cutting unit.

Preferably, the turning unit comprises a fixing plate arranged on the lower end face of the rod body of the electric push rod or the first air cylinder, a driving plate is arranged on one side face of the fixing plate, a swing plate is connected to the driving plate in a rotating mode, one end of the swing plate is connected with the driving plate in a rotating mode, sliding grooves distributed along the length direction of the swing plate are formed in the other end of the swing plate, the swing plate is coaxially driven by a first motor fixed on one side, away from the driving plate, of the fixing plate, a rotating disc is connected to one side of the driving plate in a rotating mode, the disc surface of the rotating disc is connected with a turning rod in a sliding mode along the radial direction of the rotating disc, two ends of the turning rod extend out of the disc surface of the rotating disc, and one end of the turning rod is connected with a sliding block which slides in the sliding grooves in a rotating mode, the other end with snatch cutting unit connection, set up the sliding tray that supplies the slider to slide on the drive plate, the one end of slider extends and gets into the sliding tray in following the spout, the sliding tray includes when the upset pole is in vertical position, the first groove of slider vertical movement in the sliding tray and when the upset pole is in horizontal position, the second groove of slider horizontal migration in the sliding tray to and the arc third groove of connecting first groove and second groove, the centre of a circle of third groove is concentric with the centre of a circle of rolling disc, the swing board swing drives the slider and removes in the sliding tray, and then drives the upset pole and overturn to horizontal position from vertical position.

Preferably, the grabbing and cutting unit comprises a driving box arranged at one end, far away from the sliding block, of the turnover rod, a second air cylinder is arranged on the inner wall of the driving box, one end of a piston rod of the second air cylinder extends out of one side, far away from the turnover rod, of the driving box, a moving block is arranged on the piston rod of the second air cylinder, two parallel connecting rods are hinged to two opposite sides of the moving block, two driving plates are connected to one side wall, extending out of the piston rod of the second air cylinder, of the driving box in a sliding mode, the two driving plates are distributed on two sides of the moving block and hinged to one end, far away from the moving block, of the connecting rod, a clamping plate is arranged at one end, far away from the driving box, and a plurality of anti-skidding protrusions in contact with the surface of the material bag are arranged on one opposite side of the two clamping plates;

the cutting device comprises a moving block and is characterized in that a placing groove is formed in one side, deviating from a piston rod of a second air cylinder, of the moving block, a third air cylinder is arranged in the placing groove, a piston rod of the third air cylinder extends out of the placing groove, one end of the piston rod of the third air cylinder, extending out of the placing groove, is connected with a cutting box, the length direction of the cutting box is perpendicular to the plate surface of the moving block and is rotatably connected with a cutting shaft, extending out of one side, deviating from the moving block, of the cutting box, a plurality of cutters are arranged on the cutting shaft, and a second motor for driving the cutting shaft to rotate is arranged on the outer wall of the cutting box.

Preferably, the moving block is provided with compression springs on two sides of the cutting box, one ends of the compression springs, far away from the moving block, are provided with squeezing plates, when the lifting unit drives the two clamping plates to descend to two opposite sides of the material bag to be grabbed, the squeezing plates are squeezed by the material bag to squeeze the compression springs, one opposite side faces of the two clamping plates are provided with inclined faces inclined in opposite directions, and a gap exists between the material bag and the cutter.

Preferably, when the grabbing and cutting unit is turned to the horizontal position by the turning unit, the lower ends of the cutting boxes are distributed close to the lower end of the material bag.

Preferably, the driving piece is including the horizontal pole of connecting two sets of pulleys just the movable plate upper end is equipped with the third motor, coaxial coupling has first belt pulley in the axis of rotation of third motor, is located to be equipped with the second belt pulley on the horizontal pole of first belt pulley below, the second belt pulley is located one side of pulley just first belt pulley and second belt pulley pass through annular transmission belt and connect, be equipped with the rack that distributes along guide rail length direction on the open-ended up end of walking frame, the rack distributes and deviates from one side of transmission belt at the guide rail, and is equipped with coaxial being equipped with on the horizontal pole of second belt pulley with rack toothing's driving gear, driving gear and second belt pulley are located one side that two pulleys deviate from mutually respectively.

Preferably, the feed hopper is provided with a plurality of steel wire meshes covering the inlet of the feed hopper.

The invention has the beneficial effects that: place feed bin and stack one-to-one subaerial, when being convenient for like this toward blowing in the corresponding feed bin, the walking frame walks between corresponding feed bin and stack, and snatch the cutting structure and snatch the pocket on the stack and open, make the raw materials fall in the water conservancy diversion pipe, and carry to the feed bin in by the honeycomb duct, the circulation is reciprocal, until this feed bin is filled up, the walking frame walks to another between to feed bin and stack afterwards, realize snatching and opening of pocket, practice thrift the human cost.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural diagram of the present embodiment;

FIG. 2 is a schematic structural diagram of the cross bar of the present embodiment;

FIG. 3 is a schematic structural diagram of a feed hopper embodying the present embodiment;

FIG. 4 is a schematic structural diagram of a grasping and cutting unit according to the embodiment;

FIG. 5 is an enlarged view of portion A of FIG. 4;

FIG. 6 is a schematic structural diagram of the first groove of the present embodiment;

fig. 7 is a schematic structural view of the cutter embodying the present embodiment.

Description of reference numerals:

in the figure: 1. a storage bin; 2. stacking the materials; 3. a track; 31. a walking frame; 311. a flow guide pipe; 312. a roller; 313. a feed hopper; 32. a guide rail; 321. a notch; 322. moving the plate; 323. a pulley; 33. a grabbing and cutting unit; 331. a drive cartridge; 332. a second cylinder; 333. a moving block; 334. a connecting rod; 335. driving the plate; 336. a splint; 337. a placement groove; 338. a third cylinder; 3381. cutting the box; 3382. cutting the shaft; 3383. a cutter; 3384. a second motor; 34. a turning unit; 341. a fixing plate; 342. a drive plate; 343. a swinging plate; 344. a chute; 345. rotating the disc; 346. a turning rod; 347. a slider; 348. a first groove; 349. a second groove; 3491. a third groove; 35. a lifting unit; 36. a compression spring; 361. a pressing plate; 362. an inclined surface; 37. a cross bar; 371. a third motor; 372. a first pulley; 373. a second pulley; 374. a rack; 375. a driving gear; 38. and (5) steel wire mesh.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

An automatic bag opening device is shown in figures 1 and 2 and comprises a storage bin 1, a material stack 2, a rail 3 and a traveling frame 31, wherein the storage bin 1 and the material stack 2 are placed on the ground in a one-to-one correspondence mode, the rail 3 is arranged between the storage bin 1 and the material stack 2, the traveling frame 31 travels along the rail 3, a flow guide pipe 311 is arranged at the upper end of the traveling frame 31, one end of the flow guide pipe 311 extends out of the outer wall of the traveling frame 31 and is located above the storage bin 1, and a grabbing and cutting structure for grabbing and cutting a material bag on the material stack 2 and cutting the material bag is arranged at one end of the traveling frame 31, which is far away from the storage bin 1, so that raw materials fall onto the flow guide pipe 311. The stack 2 is formed by stacking a plurality of pockets on top of each other, with the magazine 1 in a row and the stack 2 in a row.

Like figure 1 and figure 2, place feed bin 1 and stack 2 one-to-one subaerial, when being convenient for like this toward blowing in the corresponding feed bin 1, walking frame 31 walks between corresponding feed bin 1 and stack 2, and snatch the cutting structure and snatch and cut the pocket on stack 2 for the raw materials falls in honeycomb duct 311, and carry to the feed bin 1 in by honeycomb duct 311, the circulation is reciprocal, until this feed bin 1 is filled up, walking frame 31 walks to another between to feed bin 1 and stack 2 afterwards, realize snatching and cutting of pocket, practice thrift the human cost.

As shown in fig. 1 and 3, the traveling frame 31 includes a rectangular box with an upward opening, two pairs of rollers 312 traveling along the rail 3 are disposed at the lower end of the traveling frame 31, one end of the duct 311 extends obliquely out of the side wall of the traveling frame 31, and the other end of the duct is disposed with a feeding hopper 313 with an upward opening, the feeding hopper 313 is communicated with the duct 311, and the side wall of the feeding hopper 313 is fixed on the inner wall of the traveling frame 31, at this time, the peripheral wall of the feeding hopper 313 is attached to the peripheral wall of the rectangular box, so as to increase the feeding area of the feeding hopper 313, one end of the duct 311 extends to the upper side of the storage bin 1, at this time, the traveling frame 31 can be manually pushed, or the rollers 312 can be driven by a motor to move on the rail 3.

As shown in fig. 1 and 3, the upper end surfaces of the opposite opening walls of the upper end opening of the traveling frame 31 are provided with guide rails 32, one end of each guide rail 32 extends out of the traveling frame 31 and is located above the material stack 2, the guide rails 32 are connected with a moving trolley in a sliding manner, the grabbing cutting structure is arranged on the moving trolley, the traveling frame 31 is provided with a notch 321 which is used for the grabbing cutting structure to enter the traveling frame 31 and is located above the feed hopper 313, the moving trolley comprises a moving plate 322 and two groups of pulleys 323 which are arranged on the lower end surface of the moving plate 322 and are connected with the guide rails 32 in a sliding manner, and the moving plate 322 is provided with a driving part for driving the pulleys 323 to rotate.

As shown in fig. 1 and 3, when the driving member drives the pulley 323 to move on the guide rail 32, the moving plate 322 is driven to move into the upper end of the traveling frame 31 and out of the traveling frame 31 and above the material stack 2, and the notch 321 is formed to facilitate the grabbing and cutting structure to grab the material bag into the traveling frame 31 and above the feeding hopper 313.

As shown in fig. 4 and 5, the grasping and cutting structure includes a grasping and cutting unit 33 disposed below the moving plate 322 for grasping the material bag, a turning unit 34 for turning the grasping and cutting unit 33 from a vertical position to a horizontal position, and a lifting unit 35 for driving the turning unit 34 and the grasping and cutting unit 33 to ascend and descend, the lifting unit 35 is an electric push rod or a first air cylinder disposed on the lower end surface of the moving plate 322, the turning unit 34 is disposed on the lower end surface of a rod body of the electric push rod or the first air cylinder, and the grasping and cutting unit 33 is disposed on the turning unit 34. At this time, a plurality of the inverting unit 34, the grasping and cutting unit 33, and the elevating unit 35 may be provided on the moving plate 322.

As shown in fig. 4 and 5, the lifting unit 35 is convenient to move the grabbing and cutting unit 33 to the stack 2, and is convenient to grab the bag grabbed by the cutting unit 33, after the grabbing and cutting unit 33 grabs the bag, the lifting unit 35 drives the grabbing and cutting unit 33 to ascend to the notch 321 position, then the overturning unit 34 drives the grabbing and cutting unit 33 to overturn from the vertical position to the horizontal position, at this time, the moving plate 322 is driven by the driving member to grab the cutting unit 33 and send the grabbing and cutting unit 33 to the upper part of the feeding hopper 313, at this time, the grabbing and cutting unit 33 cuts the bag, so that the raw material in the bag falls into the feeding hopper 313, and then the raw material is conveyed to the silo 1 through the guide pipe 311.

As shown in fig. 4 and 6, the flipping unit 34 includes a fixed plate 341 disposed on the lower end surface of the rod body of the electric push rod or the first air cylinder, a driving plate 342 is disposed on one side surface of the fixed plate 341, the driving plate 342 is parallel to the fixed plate 341 and fixed on the fixed plate 341, a swing plate 343 is rotatably connected to the driving plate 342, one end of the swing plate 343 is rotatably connected to the driving plate 342, sliding grooves 344 distributed along the length direction of the swing plate 343 are disposed on the other end, the swing plate 343 is coaxially driven by a first motor fixed on one side of the fixed plate 341 away from the driving plate 342, the fixed plate 341 is rotatably connected to a rotating disc 345 on one side of the driving plate 342, a flipping rod 346 is slidably connected to the disc surface of the rotating disc 345 along the radial direction of the rotating disc 345, both ends of the flipping rod 346 extend out of the disc surface of the rotating disc 345 and is rotatably connected to a sliding block 347 sliding in the sliding groove 344, the other end of the driving plate 345 is connected to the grabbing and cutting unit 33, a sliding groove for allowing one end of the sliding block 347 to extend into the sliding groove 344 and extend out of the sliding groove 344 from the sliding groove of the driving plate 345;

as shown in fig. 4 and 6, the sliding groove includes a first groove 348 in which the slider 347 moves vertically in the sliding groove when the turning bar 346 is in the vertical position, a second groove 349 in which the slider 347 moves horizontally in the sliding groove when the turning bar 346 is in the horizontal position, and an arc-shaped third groove 3491 connecting the first groove 348 and the second groove 349, a center of the third groove 3491 is concentric with a center of the rotating disc 345, and the swing plate 343 swings to drive the slider 347 to move in the sliding groove, thereby driving the turning bar 346 to turn from the vertical position to the horizontal position.

As shown in fig. 4 and 6, when the swing plate 343 is driven by the first motor to rotate, the swing plate 343 drives the slider 347 on the turning rod 346 to move upward in the first slot 348, and further slide into the third slot 3491 gradually, when the slider 347 is in the first slot 348, the length direction of the first slot 348 is parallel to the length direction of the turning rod 346, so as to drive the turning rod 346 to move upward, and after the slider 347 slides into the third slot 3491 along with the continued swinging of the swing plate 343, the turning rod 346 swings gradually from the vertical position to the horizontal position until the slider 347 enters the second slot 349, at which time, the length direction of the second slot 349 is parallel to the length direction of the turning rod 346, so that along with the swinging of the swing plate 343, the slider 347 is driven to move in the second slot 349, so that the turning rod 346 moves in the horizontal direction, and then the first motor drives the swing plate 343 to reverse, and cycle back and forth sequentially, and the turning rod 346 moves in the rotating disk 345 throughout, and at this time, the turning rod 346 and the electric push rod or the first cylinder are not displaced in the same plane.

As shown in fig. 4 and 5, the grabbing and cutting unit 33 includes a driving box 331 disposed at one end of the turning bar 346 far from the sliding block 347, a second cylinder 332 is disposed on an inner wall of the driving box 331, one end of a piston rod of the second cylinder 332 extends out of one side of the driving box 331 far away from the turning bar 346, and a moving block 333 is disposed on a piston rod of the second cylinder 332, two parallel connecting rods 334 are hinged to opposite sides of the moving block 333, the driving box 331 is connected with two driving plates 335 in a sliding manner on a side wall of the second cylinder 332 extending out of the piston rod, moving directions of the two driving plates 335 are close to each other and are far away from each other, the two driving plates 335 are disposed on two sides of the moving block 333 and are hinged to one end of the connecting rod 334 far away from the moving block 333, at this time, the connecting rods 334 are both inclined rods, and a higher end of the two driving plates 335 are hinged to the moving block 333, a clamp plate 336 is disposed at one end far away from the driving box 331, and two clamp plates 336 are disposed on opposite sides of each clamp plate 336 with a plurality of anti-sliding protrusions (not shown in the figure) contacting with a surface of the material bag, thereby increasing friction between the clamp plate and the material bag 336;

as shown in fig. 4 and 5, at this time, when the second cylinder 332 drives the moving block 333 to move downwards, the two driving plates 335 are driven to move towards the direction away from each other through the connecting rod 334, it is convenient for the two clamping plates 336 to be located on the two opposite sides of the material bag, when the piston rod of the second cylinder 332 drives the moving block 333 to move upwards, the two driving plates 335 are driven to move towards the direction close to each other through the connecting rod 334, and then it is convenient for the two clamping plates 336 to clamp the material bag into columns, at this moment, the width of the clamping plates 336 is distributed along the length direction of the material bag, the side surfaces of the moving block 333 and the driving plates 335 are all provided with swinging grooves for swinging of the connecting rod 334, and the swinging of the connecting rod 334 is convenient.

As shown in fig. 5 and 7, the moving block 333 has been provided with a placement groove 337 at the side of deviating from the piston rod of the second cylinder 332, a third cylinder 338 is provided in the placement groove 337, the piston rod of the third cylinder 338 extends out of the placement groove 337 and is connected with a cutting box 3381 at the one end of the extension, the opening of the cutting box 3381 faces down, the length direction of the cutting box 3381 is perpendicular to the plate surface of the moving block 333 and the cutting box 3381 rotates to be connected with a cutting shaft 3382 along the length direction of the cutting box 3381, the cutting shaft 3382 is provided with a plurality of cutters 3383 extending out of one side of the cutting box 3381 and deviating from the moving block 333, at this moment, the cutters 3383 are round cutters and coaxial with the cutting shaft 3382, the outer wall of the cutting box 3381 is provided with a second motor 3384 for driving the cutting shaft 3382 to rotate.

As shown in fig. 4 and 7, when the turning unit 34 turns the grabbing cutting unit 33 to the horizontal position, the cutting boxes 3381 are distributed along the length direction of the material bag, the piston rod of the third cylinder 338 drives the cutting boxes 3381 to move towards the direction close to the material bag until the cutter 3383 collides with the material bag, at this time, the second motor 3384 drives the cutting shaft 3382 to rotate, the cutting shaft 3382 drives the cutter 3383 to work, the cutter 3383 is convenient to cut the material bag, the material bag is located at the vertical position at this time, the raw material in the material bag falls to the inlet of the feed hopper 313, and therefore, the turning unit 34 aims to turn the material bag from the horizontal position to the vertical position, and the cutter 3383 is convenient to cut the material bag, so that the raw material falls down. Being equipped with the wire net 38 that a plurality of covers feeder hopper 313 import on the feeder hopper 313 this moment, wire net 38 is convenient for the raw materials and falls into feeder hopper 313 on the one hand, and on the other hand is convenient for block not have the pocket of raw materials and fall into feeder hopper 313, also can vibrate motor at the outer wall installation of feeder hopper 313 in addition, and the purpose of this design is to vibrating the pocket and the raw materials that fall on wire net 38, is convenient for accelerate the raw materials and fall into feeder hopper 313. When the clamping plate 336 clamps the material bag, a gap exists between the cutting knife 3383 and the material bag.

As shown in fig. 4 and 5, the moving block 333 is provided with compression springs 36 on both sides of the cutting box 3381, one end of each compression spring 36 away from the moving block 333 is provided with a squeezing plate 361, when the lifting unit 35 drives the two clamping plates 336 to descend to the opposite sides of the material bag to be grabbed, the squeezing plates 361 are squeezed by the material bag to squeeze the compression springs 36, one opposite side surfaces of the two clamping plates 336 are provided with inclined surfaces 362 inclined in opposite directions, and a gap exists between the material bag and the cutter 3383. When two splint 336 are descended to the relative both sides of pocket by lift unit 35, the stripper plate 361 is extrudeed, when two splint 336 were close to each other afterwards, press from both sides the pocket tightly, the outer wall of pocket is contradicted with inclined plane 362 this moment, the stripper plate 361 takes place the extrusion with inclined plane 362 under compression spring's 36 the effect of extrusion, make the pocket pressed from both sides tightly stably, in addition movable block 333 also can set up the telescopic link in compression spring 36, it is bent to reduce compression spring 36, in addition when compression spring 36 is pressed and, there is the clearance between cutter 3383 and the pocket, the pocket has been protected, avoid lift unit 35 to lose efficacy, make splint 336 descend too much, make cutter 3383 contradict with the pocket, and then cut the pocket.

As shown in fig. 4 and 5, when the turning unit 34 turns the grasping and cutting unit 33 to the horizontal position, the lower ends of the cutting boxes 3381 are distributed near the lower end of the pocket. The purpose of this design is convenient for cut the below of pocket open, and then the row of the pocket of being convenient for arranges.

As shown in fig. 1 and fig. 2, the driving member includes a cross bar 37 connecting two sets of pulleys 323, a third motor 371 is disposed at an upper end of the moving plate 322, a first belt pulley 372 is coaxially connected to a rotating shaft of the third motor 371, a second belt pulley 373 is disposed on the cross bar 37 below the first belt pulley 372, the second belt pulley 373 is disposed at one side of the pulleys 323, the first belt pulley 372 and the second belt pulley 373 are connected by an annular transmission belt (not shown in the figures), racks 374 distributed along a length direction of the guide rail 32 are disposed on an upper end surface of an opening at an upper end of the traveling frame 31, the racks 374 are distributed at one side of the guide rail 32 departing from the transmission belt, a driving gear 375 engaged with the racks is coaxially disposed on the cross bar 37 provided with the second belt pulley 373, and the driving gear 375 and the second belt pulley 373 are respectively disposed at one side of the two pulleys 323. The moving plate 322 may be provided with a protective cover covering the third motor 371.

As shown in fig. 1 and fig. 2, at this time, the third motor 371 drives the cross bar 37 to rotate through the first belt pulley 372 and the second belt pulley 373, so that the cross bar 37 is rotated to drive the driving gear 375 to travel on the rack 374, and further drive each pulley 323 to travel on the corresponding guide rail 32, thereby achieving the purpose of moving the moving plate 322 out of and into the traveling frame 31. The traveling of the traveling frame 31 may be driven by a motor to move the rollers 312 on the rails 3, and may be similar to the above-described structure.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims (6)

1. The automatic bag opening device is characterized by comprising a storage bin (1) and a material stack (2) which are correspondingly placed on the ground one by one, a track (3) arranged between the storage bin (1) and the material stack (2), and a traveling frame (31) traveling along the track (3), wherein a flow guide pipe (311) is arranged at the upper end of the traveling frame (31), one end of the flow guide pipe (311) extends out of the outer wall of the traveling frame (31) and is positioned above the storage bin (1), and one end of the traveling frame (31) departing from the storage bin (1) is provided with a grabbing structure for grabbing bags on the material stack (2) and cutting the bags, so that raw materials fall on the flow guide pipe (311);

the walking frame (31) comprises a rectangular box with an upward opening, two pairs of rollers (312) traveling along the track (3) are arranged at the lower end of the walking frame (31), one end of the guide pipe (311) obliquely extends out of the side wall of the walking frame (31), a feed hopper (313) with an upward opening is arranged at the other end of the guide pipe (311), the feed hopper (313) is communicated with the guide pipe (311), the side wall of the feed hopper (313) is fixed on the inner wall of the walking frame (31), and one end of the guide pipe (311) extends to the upper part of the storage bin (1);

the material stack cutting device is characterized in that guide rails (32) are arranged on the upper end faces of opposite opening walls of an opening in the upper end of the traveling frame (31), one ends of the guide rails (32) extend out of the traveling frame (31) and are located above the material stack (2), a movable trolley is connected with the guide rails (32) in a sliding mode, the grabbing cutting structure is arranged on the movable trolley, a notch (321) for the grabbing cutting structure to enter the traveling frame (31) and to be located above the feed hopper (313) is formed in the traveling frame (31), the movable trolley comprises a movable plate (322) and two groups of pulleys (323) which are arranged on the lower end face of the movable plate (322) and are connected with the guide rails (32) in a sliding mode, and a driving piece for driving the pulleys (323) to rotate is arranged on the movable plate (322);

the grabbing and cutting structure comprises a grabbing and cutting unit (33) which is arranged below the moving plate (322) and used for grabbing the material bag, a turning unit (34) which turns the grabbing and cutting unit (33) from a vertical position to a horizontal position, and a lifting unit (35) which drives the turning unit (34) and the grabbing and cutting unit (33) to lift;

the lifting unit (35) is an electric push rod or a first air cylinder arranged on the lower end face of the moving plate (322), the overturning unit (34) is arranged on the lower end face of a rod body of the electric push rod or the first air cylinder, and the grabbing and cutting unit (33) is arranged on the overturning unit (34);

the turnover unit (34) comprises a fixing plate (341) arranged on the lower end face of an electric push rod or a rod body of a first air cylinder, a driving plate (342) is arranged on one side face of the fixing plate (341), a swinging plate (343) is connected to the driving plate (342) in a rotating mode, one end of the swinging plate (343) is connected with the driving plate (342) in a rotating mode, sliding grooves (344) distributed along the length direction of the swinging plate (343) are formed in the other end of the swinging plate (343), the swinging plate (343) is coaxially driven by a first motor fixed on one side, deviating from the driving plate (342), of the fixing plate (341), and a rotating disc (345) is connected to one side, on the driving plate (342), in a rotating mode, the disk surface of the rotating disk (345) is connected with a turnover rod (346) in a sliding manner along the radial direction of the rotating disk (345), two ends of the turnover rod (346) extend out of the disk surface of the rotating disk (345), one end of the turnover rod is connected with a sliding block (347) which slides in a sliding groove (344) in a rotating manner, the other end of the turnover rod is connected with a grabbing and cutting unit (33), a sliding groove for the sliding block (347) to slide is formed in the driving plate (342), one end of the sliding block (347) extends out of the sliding groove (344) and enters the sliding groove, the sliding groove comprises a first groove (348) which enables the sliding block (347) to vertically move in the sliding groove when the turnover rod (346) is in a vertical position and a first groove (348) which enables the sliding block (347) to vertically move in the sliding groove when the turnover rod (346) is in a horizontal position, the sliding mechanism comprises a second groove (349) and an arc-shaped third groove (3491), wherein the sliding block (347) horizontally moves in the sliding groove, the arc-shaped third groove (3491) is connected with the first groove (348) and the second groove (349), the circle center of the third groove (3491) is concentric with that of the rotating disc (345), and the swinging plate (343) swings to drive the sliding block (347) to move in the sliding groove and further drive the turning rod (346) to turn from the vertical position to the horizontal position.

2. The automatic bag opening device as claimed in claim 1, wherein the grabbing and cutting unit (33) comprises a driving box (331) arranged at one end of the turning rod (346) far away from the sliding block (347), a second air cylinder (332) is arranged on the inner wall of the driving box (331), one end of a piston rod of the second air cylinder (332) extends out of one side of the driving box (331) far away from the turning rod (346), a moving block (333) is arranged on the piston rod of the second air cylinder (332), two parallel connecting rods (334) are hinged to two opposite sides of the moving block (333), two driving plates (335) are connected to the driving box (331) in a sliding mode on one side wall of the second air cylinder (332) extending out of the piston rod, the two driving plates (335) are distributed on two sides of the moving block (333) and hinged to one end of the connecting rod (334) far away from the moving block (333), a clamping plate (336) is arranged at one end of the two driving plates (335), and a plurality of anti-sliding protrusions (336) contacting with the surface of the material bag are arranged on one opposite side of the two clamping plates (336);

the cutting device is characterized in that a placing groove (337) is formed in one side, deviating from a piston rod of a second cylinder (332), of the moving block (333), a third cylinder (338) is arranged in the placing groove (337), the piston rod of the third cylinder (338) extends out of the placing groove (337) and is connected with a cutting box (3381) at one extending end, the length direction of the cutting box (3381) is perpendicular to the plate surface of the moving block (333) and is connected with cutting shafts (3382) which are distributed along the length direction of the cutting box (3381) in a rotating mode, a plurality of cutters (3383) extending out of one side, deviating from the moving block (333), of the cutting box (3381) are arranged on the cutting shaft (3382), and a second motor (3384) for driving the cutting shaft (3382) to rotate is arranged on the outer wall of the cutting box (3381).

3. The automatic bag opening device as claimed in claim 2, wherein the moving block (333) is provided with compression springs (36) at both sides of the cutting box (3381), one end of each compression spring (36) far away from the moving block (333) is provided with a squeezing plate (361), when the lifting unit (35) drives the two clamping plates (336) to descend to the opposite sides of the bag to be grabbed, the squeezing plates (361) are squeezed by the bag to squeeze the compression springs (36), the opposite sides of the two clamping plates (336) are provided with inclined surfaces (362) which are inclined in opposite directions, and a gap exists between the bag and the cutter (3383).

4. The automatic bag opener according to claim 2, wherein the lower end of the cutting box (3381) is disposed adjacent to the lower end of the bag when the grasping and cutting unit (33) is turned to the horizontal position by the turning unit (34).

5. The automatic bag opening device as claimed in claim 1, wherein the driving member comprises a cross bar (37) connecting two sets of pulleys (323), the upper end of the moving plate (322) is provided with a third motor (371), a first belt pulley (372) is coaxially connected to a rotating shaft of the third motor (371), a second belt pulley (373) is arranged on the cross bar (37) below the first belt pulley (372), the second belt pulley (373) is arranged on one side of the pulley (323), the first belt pulley (372) and the second belt pulley (373) are connected by an annular transmission belt, racks (374) distributed along the length direction of the guide rail (32) are arranged on the upper end surface of the opening of the upper end of the traveling frame (31), the racks (374) are distributed on one side of the guide rail (32) facing away from the transmission belt, a driving gear (375) meshed with the racks (374) is coaxially arranged on the cross bar (37) provided with the second belt pulley (373), and the driving gear (375) and the second belt pulley (373) are respectively arranged on one side of the two pulleys (323) facing away from each other.

6. An automatic bag opener according to claim 1, characterized in that the feed hopper (313) is provided with a plurality of steel wire meshes (38) covering the inlet of the feed hopper (313).

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