CN210618714U - Unpacking device - Google Patents

Abstract

The utility model relates to a unpacking device, which comprises a clamping mechanism and a unpacking mechanism, wherein the clamping mechanism comprises a machine body, a clamping jaw, a clamping cylinder, a shaking cylinder and a walking cylinder, the shaking cylinder is fixedly connected with the extending end of the walking cylinder, the upper half part of the clamping jaw is fixedly connected with the extending end of the shaking cylinder, the clamping cylinder is fixedly connected with the two sides of the upper half part of the clamping jaw, the extending end of the clamping cylinder is fixedly connected with the lower half part of the clamping jaw, and a material bag is clamped on the clamping jaw; the bale breaker constructs including holding in the palm bag slide, V type hopper, broken bag cylinder, knife rest and blade, holds in the palm bag slide and links firmly one side in V type hopper, and the port has been seted up to V type hopper bottom, and blade sliding connection is in the port, broken bag cylinder links firmly in holding in the palm bag slide one side, and knife rest one end stretches out the end with broken bag cylinder and links firmly, and the knife rest other end links firmly with the blade, the utility model has the advantages of simple structure, with low costs, only realize promptly through the cylinder drive that broken bag, tremble the automation mechanized operation that bag and useless bag were retrieved, use manpower sparingly.

Description

Unpacking device

Technical Field

The utility model relates to an automatic bale breaking technical field especially relates to an bale breaking device.

Background

In the industries of food, pharmacy, health products, milk powder, petroleum, chemical industry, metallurgy, new energy and the like, 10-50 kg of single-layer or double-layer packaging bag packaging raw materials are frequently used, a common packaging bag adopts a woven bag, a kraft paper bag, a composite bag and the like, and the inner layer of the double-layer bag generally adopts a plastic tape.

Early feeding equipment generally adopts a manual unpacking method, a packing bag is manually unpacked, materials in the packing bag are poured into conveying equipment or the materials in the packing bag are conveyed away by a handheld suction head, the unpacking mode has the defects of high labor intensity, low working efficiency, flying dust and the like, particularly, an operator needs to wear protective tools such as a mask, glasses, gloves and the like for unpacking the materials such as toxicity, strong corrosion, high dust and the like, and even if the operation is carried out in a severe environment, the physical health of the operator can be threatened.

The prior automatic unpacking and feeding equipment has the defects that: immature technology, complex structure, high cost, inconvenient cleaning and the like. Particularly, some devices adopt a mode of cutting the material bag for many times by a cutter, so that scraps of the material bag are mixed with the material and are not easy to remove; and the internal structure of other equipment is complex, so that the cleaning workload is large, and sanitary dead corners exist.

Therefore, in view of the above disadvantages, it is desirable to provide an unpacking device.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The to-be-solved technical problem of the utility model is to solve automatic unpacking device and need many times cutting pocket and the big problem of cleaning work volume.

(II) technical scheme

In order to solve the technical problem, the utility model provides a bale breaking device, including fixture and bale breaking mechanism, the bale breaking machine framework is established below the fixture, wherein, the fixture includes organism, clamping jaw, centre gripping cylinder, shake cylinder and walking cylinder, the walking cylinder links firmly at the organism top, the shake cylinder links firmly on the extension end of walking cylinder, the first half of clamping jaw links firmly with shake cylinder extension end, the centre gripping cylinder links firmly both sides of the first half of clamping jaw, the latter half of clamping jaw links firmly with the centre gripping cylinder extension end, the centre gripping material bag has been held on the clamping jaw; the bale breaking mechanism comprises a bag supporting sliding plate, a V-shaped hopper, a bag breaking cylinder, a knife rest and a blade, the bag supporting sliding plate and the V-shaped hopper are distributed below the clamping mechanism in a V shape, the bag supporting sliding plate is fixedly connected to one side in the V-shaped hopper, a port is formed in the bottom of the V-shaped hopper, the blade is slidably connected into the port, the bag breaking cylinder is fixedly connected to one side of the bag supporting sliding plate, one end of the knife rest extends out of the bag breaking cylinder, and the other end of the knife rest is fixedly connected with the blade.

Through adopting above-mentioned technical scheme, fixture centre gripping material bag realizes automatic transportation, and the material bag can cut out a great mouth with material bag bottom under the effect of blade horizontal direction, makes the material change whereabouts, by holding in the palm the bag slide simultaneously with constitute the bale breaking space, simple structure is convenient for clean.

As to the utility model discloses a further explanation, preferably, V type hopper port width is 0.2 ~ 0.5 times of maximum material bag thickness.

Through adopting above-mentioned technical scheme, can not only make the material pass the clearance of V font port, can also play the effect of support material bag, still can restrict the removal of material bag when the blade cuts the material bag, kill two birds with one stone.

As a further explanation of the present invention, preferably, the bag breaking cylinder extends and retracts horizontally to move the knife holder along the length direction of the V-shaped hopper port, and the included angle between the end face of the blade and the vertical face is 5 ° to 35 °.

By adopting the technical scheme, the blade has a reasonable inclination angle, can attach the material bag, can divide the pressure of the material in the material bag on the blade into component forces in multiple directions by means of the reasonable inclination, reduces the stress at the middle part of the blade, avoids the blade from being pressed and deformed by the material in the material bag, and can also cut a notch with the largest horizontal direction on the material bag by the blade, so that the material bag is easier to discharge, and further, the bag breaking is realized, and the bag opening efficiency is improved.

As a further explanation of the present invention, preferably, the end of the V-shaped hopper bottom is fixedly connected with a drainage tube in a frustum pyramid shape, and a through hole in a frustum pyramid shape is formed in the drainage tube.

Through adopting above-mentioned technical scheme, the setting has the frustum of a prism form drainage tube of chamfered frustum type, can not only good auxiliary stay V type hopper, still can be with the material drainage totally to in the drainage tube to with the material leading-in to the shale shaker totally, kill two birds with one stone.

As a further explanation of the utility model, preferably, one side of the bag supporting sliding plate is fixedly connected with a dust collector, the output end of the dust collector is fixedly connected with a dust collection pipe, the dust collection pipe inclines downwards, the inclination angle is 20-50 degrees, and the dust collection pipe is communicated with the drainage pipe.

By adopting the technical scheme, the dust collector and the dust collection pipe are arranged to suck the raised materials into the drainage pipe, so that the raised dust is prevented from being attached to a device in the device to pollute the device and cause material waste, the dust collection pipe inclines downwards, and the materials sucked into the dust collection pipe slide out of the dust collection pipe by gravity or air flow through intermittent suction and blowing of the dust collector, so that the dust collection pipe is prevented from being blocked, and the dust collection pipe is ensured to have a long-acting dust collection function.

As right the utility model discloses a further explanation, preferably, the flexible direction of walking cylinder is the horizontal direction, and the flexible direction of shake cylinder is vertical direction.

Through adopting above-mentioned technical scheme, set up the regulation that the different stations of clamping jaw can be realized to the walking cylinder, simple structure is convenient for maintain, sets up simultaneously and shakes the work that the cylinder can simulate manual bale breaking, makes the material in the material bag can flow out outside the material bag completely.

As a further explanation of the present invention, it is preferable that the distance of the open clamping jaw is greater than or equal to 0.75 times the maximum material bag thickness.

Through adopting above-mentioned technical scheme, can make the clamping jaw centre gripping fill the material bag of different volume materials, improve the suitability of clamping jaw.

As to the utility model discloses a further explanation, preferably, fixture one side frame is equipped with the conveyer, and the bale breaker constructs the below and erects the shale shaker, and the shale shaker below is erect and is equipped with down to inhale the hopper, and fixture other side bearer is equipped with the empty bag collection box.

By adopting the technical scheme, the automatic feeding, automatic unpacking and automatic recycling of the material bags are realized, manual operation is not needed, and manpower is saved.

As right the utility model discloses a further explanation, preferably, conveyer exit end department has linked firmly first sensor, and the tongs at clamping jaw top has linked firmly the second sensor, has linked firmly the controller on the organism, first sensor and second sensor all with controller electric connection, solenoid valve electric connection on controller and all the cylinders to make bale breaking device automatic operation.

By adopting the technical scheme, the unpacking device is automatically controlled, more than 2 operating workers in a workshop can be saved at least, the unpacking speed can be greatly improved by automatic control, the unpacking efficiency is further improved, and 8 unpacking devices can be unpacked more than manual unpacking devices in unit time.

(III) advantageous effects

The above technical scheme of the utility model has following advantage:

1. the utility model has simple structure and low cost, realizes the automatic operation of breaking, shaking and recycling the waste bag only by the driving of the cylinder, and has high unpacking efficiency;

2. only the blade contacts with the material, so that the equipment is simple and convenient to clean;

3. the bag can be broken by one knife, and the secondary pollution of the materials is avoided.

Drawings

FIG. 1 is a general assembly effect diagram of the present invention;

FIG. 2 is a diagram of a conveyor structure according to the present invention;

FIG. 3 is a view of the clamping mechanism of the present invention;

FIG. 4 is a block diagram of the clamping mechanism and the unpacking mechanism of the present invention;

fig. 5 is a view of the structure of the clamping jaw of the present invention.

In the figure: 1. a conveyor; 11. a support; 12. a motor; 13. a sprocket; 14. a belt; 15. A pulley; 16. a limiting rod; 17. a first sensor; 2. a clamping mechanism; 21. a body; 22. A clamping jaw; 23. a clamping cylinder; 24. a shaking cylinder; 25. a traveling cylinder; 26. a second sensor; 3. a bag disassembling mechanism; 31. a bag supporting sliding plate; 32. a V-shaped hopper; 33. a bag breaking cylinder; 34. A tool holder; 35. a blade; 36. a drainage tube; 37. a vacuum cleaner; 38. a dust collection pipe; 39. a side dam; 4. vibrating screen; 5. a lower suction hopper; 6. an empty bag recovery box; 7. a controller; 8. and (6) material bags.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The utility model provides a bale breaking device, combines fig. 1, fig. 3, includes conveyer 1, fixture 2, bale breaking mechanism 3, shale shaker 4, inhales hopper 5 and empty bag collection box 6 down, and conveyer 1 erects in fixture 2 left sides, and bale breaking mechanism 3 erects in fixture 2 below, and shale shaker 4 erects in bale breaking mechanism 3 below, and lower inhale hopper 5 and erect in shale shaker 4 below, and empty bag collection box 6 erects in fixture 2 right sides.

With reference to fig. 1 and 2, the conveyor 1 comprises a support 11, a motor 12, a chain wheel 13, a belt 14 and belt wheels 15, wherein the support 11 is erected on the left side of the clamping mechanism 2, the motor 12 is fixedly connected to the middle of the left side of the support 11, the chain wheel 13 is rotatably connected to the motor 12, the two belt wheels 15 are rotatably connected to the left side and the right side of the top of the support 11, the belt 14 is sleeved on the two belt wheels 15, a material bag 8 filled with materials is placed on the left side of the belt 14, and the motor 12 drives the belt 14 to convey the material bag 8 to the right side of the support 11 through the chain wheel 13 to play; support 11 is located belt 14 both sides and has linked firmly gag lever post 16, avoids material bag 8 to remove along belt 14 width direction, and gag lever post 16 right-hand member has linked firmly first sensor 17, and first sensor 17 is infrared sensor.

With reference to fig. 3 and 4, the clamping mechanism 2 includes a machine body 21, a clamping jaw 22, a clamping cylinder 23, a shaking cylinder 24 and a walking cylinder 25, the machine body 21 is a square box body, the shaking cylinder 24 is fixedly connected to the extending end of the walking cylinder 25, the clamping jaw 22 is composed of two L-shaped steel plates which are separately arranged up and down, the upper half part of the clamping jaw 22 is fixedly connected to the extending end of the shaking cylinder 24, the two clamping cylinders 23 are fixedly connected to the tops of the two sides of the upper half part of the clamping jaw 22, the extending end of the clamping cylinder 23 penetrates through the upper half part of the clamping jaw 22 to be fixedly connected to the lower half part of the clamping jaw 22, the height of the clamping jaw 22 is the same as that of the conveyor 1, the stretching direction of the walking cylinder 25 is horizontal direction, the stretching direction of the shaking cylinder 24 is vertical direction, with reference to fig. 5, the distance of the clamping jaw 22 is greater, improve the suitability of the jaws 22; the top of the inner side of the clamping jaw 22 is fixedly connected with a second sensor 26, and the second sensor 26 is a conventional pressure sensor; set up walking cylinder 25 and can realize the regulation of the different stations of clamping jaw 22, simple structure is convenient for maintain, sets up the work that shake cylinder 24 can simulate manual bale breaking simultaneously, outside the material that makes in the material bag 8 can complete outflow material bag 8, sets up clamping jaw 22 and can the centre gripping material bag 8, and the removal of cooperation walking cylinder 25 realizes the effect with material bag 8 automatic movement to in the organism 21, uses manpower sparingly.

With reference to fig. 3 and 4, the unpacking mechanism 3 includes a bag supporting sliding plate 31, a V-shaped hopper 32, a bag breaking cylinder 33, a knife rest 34 and a blade 35, the bag supporting sliding plate 31 and the V-shaped hopper 32 are distributed below the clamping mechanism 2 in a V shape, the bag supporting sliding plate 31 is fixedly connected to one side in the V-shaped hopper 32, the opening directions of the bag supporting sliding plate 31 and the V-shaped hopper 32 are upward, the opening length is equal to a half of the stroke of the traveling cylinder 25, the distance between the bag supporting sliding plate 31 and the clamping jaw 22 is smaller than the length of the material bag 8, and the traveling cylinder 25 is contracted to enable the material bag 8 to abut against the bag supporting sliding plate 31; the bottom of the V-shaped hopper is provided with a port, wherein a sliding plate cylinder can be fixedly connected to the bag supporting sliding plate 31, the extending end of the sliding plate cylinder is fixedly connected with a plug board, the plug board points to the port and can hook the material bag 8, so that the opening area of the port can be changed, namely, the area of the port is smaller than or equal to the area of the port; the opening width of V type hopper 32 is 0.2 ~ 0.5 times of the biggest material bag 8 thickness, sets up the picture peg can not only make the material pass the clearance of V font port, can also play the effect of support material bag 8, still can restrict the removal of material bag 8 when being convenient for follow-up cutting material bag 8, kills two birds with one stone.

With reference to fig. 4 and 5, the bag breaking cylinder 33 is fixedly connected to the machine body 21 on one side of the bag supporting sliding plate 31, the bag breaking cylinder 33 extends horizontally and moves along the width direction of the material bag 8, the knife rest 34 is fixedly connected to the extending end of the bag breaking cylinder 33, one end of the knife rest 34, which is inclined in the length direction and is far away from the bag breaking cylinder 33, is fixedly connected to the blade 35, the bag breaking cylinder 33 extends horizontally so that the knife rest 34 moves along the length direction of the port of the V-shaped hopper 32, the included angle between the end surface of the blade 35 and the vertical surface is 5-35 degrees, the blade 35 has a reasonable inclination angle, not only can be attached to the material bag 8, but also can divide the pressure applied to the blade 35 by the material in the material bag 8 into component forces in multiple directions by means of reasonable inclination, so that the force applied to the middle part of the blade 35 is reduced, the blade 35 is prevented from being pressed and deformed by the, and then the material is easier to flow out of the material bag 8, so that the bag is broken once, and the unpacking efficiency is improved.

With reference to fig. 1 and 4, a frustum pyramid-shaped drainage tube 36 is fixedly connected to a bottom port of the V-shaped hopper 32, an inverted frustum pyramid-shaped through hole is formed in the drainage tube 36, the upper end and the lower end of the through hole are respectively connected with the V-shaped hopper 32 and the vibrating screen 4, and the frustum pyramid-shaped drainage tube 36 with the frustum pyramid shape is arranged, so that the V-shaped hopper 32 can be well supported in an auxiliary manner, materials can be completely drained into the drainage tube 36 and completely guided into the vibrating screen 4, and two purposes are achieved by one action; one side of the bag supporting sliding plate 31 is fixedly connected with a dust collector 37, the output end of the dust collector 37 is fixedly connected with a dust collecting pipe 38, and the dust collecting pipe 38 inclines downwards and has an inclination angle of 20-50 degrees; the dust suction pipe 38 is communicated with the drainage pipe 36, the dust collector 37 and the dust suction pipe 38 are arranged to suck the raised materials into the drainage pipe 36, the raised dust is prevented from attaching to the device to pollute the device and cause material waste, the dust suction pipe 38 is inclined downwards, and the dust collector 37 sucks and blows air intermittently, so that the materials sucked into the dust suction pipe 38 slide out of the dust suction pipe 38 by gravity or air flow, the dust suction pipe 38 is prevented from being blocked, and the dust suction pipe 38 is ensured to have a long-term dust suction function.

With reference to fig. 1 and 4, the two sides of the V-shaped hopper 32 are fixedly connected with side baffles 39 to prevent the material bag 8 from excessively swinging; v type hopper 32 keeps away from and holds in the palm bag slide 31 one side and can erect absorption cylinder, and absorption cylinder stretches out the end and links firmly the sucking disc, and the sucking disc can pass after stretching out in order to adsorb material bag 8 on V type hopper 32, improves V type hopper 32 and material bag 8's area of contact, cooperation the restriction of picture peg makes material bag 8's position can be more stable, and then blade 35 can be more smooth when the cutting, can not appear material bag 8 and lead to the problem that the breach is little or not had the breach along with blade 35 moves together.

With reference to fig. 4 and 5, under the action of the blade 35 in the horizontal direction, the material bag 8 can cut a larger opening at the bottom of the material bag 8, so that the material is easier to fall down, meanwhile, the arrangement of the inserting plate can not only enlarge the area of the V-shaped opening, but also hook the bottom of the material bag 8 to open the gap, so that the area of the gap is increased, the material flows out of the material bag 8 more quickly, and the unpacking efficiency is greatly improved; meanwhile, the bag supporting sliding plate 31 and the V-shaped hopper 32 form an unpacking space, so that the structure is simple and the cleaning is convenient.

With reference to fig. 1 and 4, the traveling cylinder 25 is fully retracted to enable the clamping jaw 22 to be positioned above the empty bag recycling bin 6, so that the empty material bag 8 can be guided to the empty bag recycling bin 6, and the clamping jaw 22 is released to enable the empty material bag 8 to completely fall into the empty bag recycling bin 6; the materials in the material bag 8 enter the vibrating screen 4 and are sucked out of the vibrating screen 4 through the lower suction hopper 5, and the materials can be processed next time.

Referring to fig. 1 and 4, the machine body 21 is fixedly connected with the controller 7 on the right side of the empty bag recycling bin 6, the controller 7 is a conventional PLC controller, the first sensor 17 and the second sensor 26 are electrically connected with the controller 7, and the controller 7 is electrically connected with the electromagnetic valves on all the cylinders, so that the unpacking device automatically operates.

The utility model discloses an operating method, including following step:

I. placing the material bag 8 filled with the materials on a belt 14 of the conveyor 1, starting a motor 12 to enable the belt 14 to rotate, and conveying the material bag 8 to the clamping mechanism 2;

II, extending the walking cylinder 25 and the clamping cylinder 23, keeping the shaking cylinder 24 in a contraction state, and clamping one end of the material bag 8 by the clamping jaw 22 under the action of the clamping cylinder 23;

III, the traveling cylinder 25 contracts by half to enable the clamping jaw 22 to drag the material bag 8 to move towards the machine body 21, and the material bag 8 is abutted against the bag supporting sliding plate 31 to slide under the action of gravity, so that the effect of buffering the falling of the material bag 8 is achieved, and the clamping jaw 22 is prevented from being broken off due to sudden falling of the material bag 8; then the material bag 8 abuts against the side wall of the V-shaped hopper 32, and at the moment, the bottom of the material bag 8 extends out of the V-shaped port;

IV, extending out the adsorption cylinder to enable the sucking disc to adsorb the material bag, and then contracting the adsorption cylinder to enable the material bag 8 to be stably abutted against the V-shaped hopper 32 and the bottom end of the material bag 8 to be abutted against the blade 35;

v, extending out the bag breaking cylinder 33, so that the knife rest 34 drives the blade 35 to move along the width direction of the material bag 8, and further scratching the material bag 8;

when the sliding plate cylinder contracts, the inserting plate moves towards the bag supporting sliding plate 31 to increase the opening area of the V-shaped port, the inserting plate hooks the notch of the material bag 8 to increase the notch of the material bag 8, the shaking cylinder 24 rapidly stretches at a speed of 3 times per second, the shaking cylinder simulates manual shaking to enable the material to completely flow out of the material bag 8, and the dust collector 37 and the dust collection pipe 38 work simultaneously to absorb lifted dust and avoid polluting the machine body 21;

and VII, after all the materials in the material bag 8 are poured, the walking cylinder 25 is completely contracted, the clamping jaw 22 transports the empty material bag 8 to the upper part of the empty bag recycling box 6, and then the clamping jaw 22 is loosened to enable the empty material bag 8 to fall into the empty bag recycling box 6 under the action of gravity, so that unpacking work is completed.

By adopting the method, the bag breaking, bag shaking and waste bag recycling can be realized only by driving the air cylinder, only the blade 35 is in contact with the materials, the bag is broken by one knife, the secondary pollution of the materials is avoided, the special adjustable V-shaped cavity ensures that the equipment is simple and easy, is convenient to clean, and the device works automatically at the same time, so that at least 2 operating workers in a workshop can be saved, the automatic control can greatly improve the unpacking speed, the unpacking efficiency is further improved, and 8 unpacking machines can be unpacked more than manual machines in unit time.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims (9)

1. An unpacking device is characterized in that: the bag opening and closing device comprises a clamping mechanism (2) and a bag opening mechanism (3), wherein the bag opening mechanism (3) is erected below the clamping mechanism (2), the clamping mechanism (2) comprises a machine body (21), a clamping jaw (22), a clamping cylinder (23), a shaking cylinder (24) and a walking cylinder (25), the walking cylinder (25) is fixedly connected to the top of the machine body (21), the shaking cylinder (24) is fixedly connected to the extending end of the walking cylinder (25), the upper half part of the clamping jaw (22) is fixedly connected with the extending end of the shaking cylinder (24), the clamping cylinder (23) is fixedly connected to two sides of the upper half part of the clamping jaw (22), the extending end of the clamping cylinder (23) is fixedly connected with the lower half part of the clamping jaw (22), and a material bag (8) is clamped on the clamping jaw (22);

tear a packet mechanism (3) including holding in the palm bag slide (31), V type hopper (32), broken bag cylinder (33), knife rest (34) and blade (35), hold in the palm bag slide (31) and V type hopper (32) and be the V font and distribute in fixture (2) below, hold in the palm bag slide (31) and link firmly one side in V type hopper (32), the port has been seted up to V type hopper (32) bottom, blade (35) sliding connection be in the port, broken bag cylinder (33) link firmly in holding in the palm bag slide (31) one side, knife rest (34) one end stretches out the end with broken bag cylinder (33) and links firmly, and the knife rest (34) other end links firmly with blade (35).

2. An unpacking device as set forth in claim 1, in which: the width of the port of the V-shaped hopper (32) is 0.2-0.5 times of the thickness of the maximum material bag (8).

3. An unpacking device as set forth in claim 1, in which: the bag breaking cylinder (33) is horizontal in the telescopic direction so that the knife rest (34) moves along the length direction of the port of the V-shaped hopper (32), and the included angle between the end surface of the blade (35) and the vertical surface is 5-35 degrees.

4. An unpacking device as claimed in claim 3, in which: the bottom port of the V-shaped hopper (32) is fixedly connected with a frustum pyramid-shaped drainage tube (36), and a through hole in the shape of an inverted frustum pyramid is formed in the drainage tube (36).

5. An unpacking device as claimed in claim 4, in which: one side of the bag supporting sliding plate (31) is fixedly connected with a dust collector (37), the output end of the dust collector (37) is fixedly connected with a dust collection pipe (38), the dust collection pipe (38) inclines downwards and has an inclination angle of 20-50 degrees, and the dust collection pipe (38) is communicated with the drainage pipe (36).

6. An unpacking device as set forth in claim 1, in which: the telescopic direction of the walking cylinder (25) is the horizontal direction, and the telescopic direction of the shaking cylinder (24) is the vertical direction.

7. An unpacking device as set forth in claim 1, in which: the distance of the opening of the clamping jaws (22) is more than or equal to 0.75 time of the thickness of the maximum material bag (8).

8. An unpacking device as set forth in claim 1, in which: a conveyor (1) is erected on one side of the clamping mechanism (2), a vibrating screen (4) is erected below the bag disassembling mechanism (3), a lower suction hopper (5) is erected below the vibrating screen (4), and an empty bag recycling box (6) is arranged on the other side of the clamping mechanism (2).

9. An unpacking device as set forth in claim 8, in which: conveyer (1) exit end department has linked firmly first sensor (17), and the tongs at clamping jaw (22) top has linked firmly second sensor (26), has linked firmly controller (7) on organism (21), and first sensor (17) and second sensor (26) all are with controller (7) electric connection, solenoid valve electric connection on controller (7) and all the cylinders to make unpacking device automatic operation.

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