CN115709833A

CN115709833A - Automatic bag breaking and feeding device and method

Info

Publication number: CN115709833A
Application number: CN202211445756.8A
Authority: CN
Inventors: 张磊; 唐树备
Original assignee: Hohai University HHU
Current assignee: Hohai University HHU
Priority date: 2022-11-18
Filing date: 2022-11-18
Publication date: 2023-02-24

Abstract

The invention discloses an automatic bag breaking and feeding device and method, and relates to the technical field of material transmission.

Description

Automatic bag breaking and feeding device and method

Technical Field

The invention relates to an automatic bag-breaking feeding device and method, and belongs to the technical field of material transmission.

Background

When carrying out product production, the raw materials of product are mostly transported to the mill through the packing in, and the wrapping bag adopts plastic bag or nylon braided bag mostly, when putting the material in to apparatus for producing, need dismantle a material packaging bag, has increased the manual work, has slowed down production efficiency.

Although the conventional material bag breaking device can automatically break and feed materials, after the materials leak from the opening of the packaging bag, the dry and flat packaging bag is easy to fall down along with the materials and is collected.

Disclosure of Invention

The invention aims to overcome the defects in the prior art, provides an automatic bag breaking and feeding device and method, and solves the problem that when bags are broken and materials are fed in the prior art, shriveled material packaging bags are easy to fall down together with the materials and are collected.

In order to achieve the purpose, the invention is realized by adopting the following technical scheme:

in a first aspect, the invention provides an automatic bag-breaking feeding device which comprises a main body, wherein the main body is fixedly connected with a first support and a transmission belt for conveying materials, and the first support is rotatably connected with a material guide mechanism;

the material guide mechanism comprises a rotary drum, a mounting plate, a shaking plate and a contact pin, the rotary drum is rotatably connected with a first support, one end of the mounting plate, close to the rotary drum, is fixedly connected to the outer side wall of the rotary drum, one end of the mounting plate, far away from the rotary drum, is rotatably connected with the shaking plate, and one end of the shaking plate, far away from the rotary drum, is slidably connected with the contact pin;

the main body is fixedly connected with a second support, and one end of the second support is fixedly connected with an electric saw for breaking bags; a control mechanism for controlling the contact pin to move is arranged in the rocking plate;

the main part still is equipped with the first bin outlet that is used for discharging the material wrapping bag and the second bin outlet that is used for discharging the material, the output fixedly connected with of main part is used for connecing the receipts material funnel of getting the material.

Furthermore, control mechanism includes wire winding roller, stay cord and first elastic component, wire winding roller swing joint is in the inside of shaking the board, the lateral wall of contact pin and wire winding roller is connected respectively at the both ends of stay cord, first elastic component fixed connection contact pin, it is used for driving wire winding roller pivoted driving motor to shake fixed mounting in the board.

Furthermore, shake the limiting plate that the downthehole fixed mounting of sliding of movable plate was used for separating winding roller and contact pin, the through-hole that makes things convenient for the stay cord to pass is seted up to the limiting plate, the both ends difference fixed connection limiting plate and the contact pin of first elastic component.

Further, driving motor's output shaft fixedly connected with sleeve, the wire winding roller slides with telescopic lateral wall and cup joints, driving motor's output shaft is fixed to cup joint has first carousel, first carousel is towards the one side fixedly connected with fixture block of wire winding roller.

Furthermore, it is used for driving the gliding slide mechanism of wire winding roller to be provided with in the board to shake, slide mechanism includes second elastic component and first cam, the second elastic component cup joints with telescopic lateral wall, and is located between first carousel and the wire winding roller, first cam rotates connects the wire winding roller.

Furthermore, one end of the winding roller, which is close to the driving motor, is rotatably connected with a second turntable, the second turntable is rotatably sleeved on the outer side wall of the sleeve, and the second turntable is fixedly connected with the second elastic piece.

Further, the one end that driving motor was kept away from to the winding roller rotates installs the third carousel, the one end fixedly connected with slide bar of third carousel, the spout has been seted up to telescopic one end, the slide bar slides through the spout and pegs graft in the sleeve.

Furthermore, the lower end of the first cam is fixedly connected with a driven gear, and a driving gear meshed with the driven gear is rotationally connected in the shaking plate.

Furthermore, the mounting plate is provided with a shaking mechanism for shaking the shaking plate, and the shaking mechanism comprises a brushless motor, a hinged support and a third elastic piece; the hinged support is fixedly connected in the groove of the mounting plate, the swinging plate is hinged with the hinged support, and two ends of the rotary drum are fixedly connected with rotary rods which are used for rotating in the first support; the brushless motor is fixed at the upper end of the first bracket, and an output shaft of the brushless motor is fixedly connected with a speed reducer; the third elastic piece is sleeved on the rotating rod.

In a second aspect, the present invention provides an automatic bag-breaking feeding method, which employs the automatic bag-breaking feeding device according to the first aspect, and includes the following steps:

moving the material packaging bag to a material guide mechanism through a transmission belt;

the contact pin in the material guide mechanism is popped up through the control mechanism;

the contact pin is inserted into a material packaging bag on the transmission belt, the rotary drum drives the contact pin to continuously rotate, and the material packaging bag is transported to an electric saw through the contact pin to be subjected to bag breaking and discharging;

when the rotary drum continuously rotates until the mounting plate is vertically downward, the contact pin is contracted into the shaking plate through the control mechanism;

the material packaging bag after bag breaking falls to the first discharging port along with self gravity.

Compared with the prior art, the invention has the following beneficial effects:

according to the invention, the contact pin extends out of one end of the rocking plate and is inserted into the material packaging bag to fix the material packaging bag, the rotary drum is rotated to drive the mounting plate to rotate, the material packaging bag is moved to the electric saw to cut and break the bag, the material flows out to be collected, the rotary drum is rotated to vertically downwards guide the mounting plate, and the contact pin is contracted at the moment, so that the material packaging bag with the emptied material can downwards drop along with the self gravity to be collected, and the problem that the shriveled material packaging bag is easy to drop along with the material to be collected after the material leaks from the opening of the packaging bag by the conventional material bag breaking device is solved.

Drawings

Fig. 1 is a schematic view of an overall structure of an automatic bag-breaking and feeding device provided in an embodiment of the present invention;

fig. 2 is a schematic structural view of a material guiding mechanism in an automatic bag breaking and feeding device according to an embodiment of the present invention;

fig. 3 is a schematic cross-sectional structural view of a shaking plate in an automatic bag breaking and feeding device provided in an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a sliding mechanism in an automatic bag breaking and feeding device according to an embodiment of the present invention;

fig. 5 is a schematic bottom structural view of a sliding mechanism in an automatic bag-breaking and feeding device according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a winding roller in an automatic bag-breaking feeding device according to an embodiment of the present invention;

fig. 7 is a schematic view of a third turntable mounting structure in an automatic bag-breaking and feeding device according to an embodiment of the present invention;

in the figure: 1. a main body; 11. a first bracket; 12. a second bracket; 13. a first discharge port; 14. a second discharge opening; 2. a transmission belt; 3. a material guiding mechanism; 31. a rotating drum; 32. mounting a plate; 33. a shaking plate; 331. a limiting plate; 34. inserting a pin; 4. electric sawing; 5. a control mechanism; 51. a winding roller; 511. a clamping hole; 52. pulling a rope; 53. a first elastic member; 54. a drive motor; 541. a clamping block; 542. a sleeve; 543. a first turntable; 6. a sliding mechanism; 61. a second elastic member; 611. a second turntable; 62. a first cam; 621. a driven gear; 63. a third turntable; 631. a slide bar; 64. a drive gear; 7. a shaking mechanism; 71. a brushless motor; 72. a hinged support; 73. a third elastic member; 74. a speed reducer; 8. a receiving funnel.

Detailed Description

The technical solutions of the present invention are described in detail below with reference to the accompanying drawings and specific embodiments, and it should be understood that the specific features in the embodiments and examples are described in detail in the technical solutions of the present invention, but not limited to the technical solutions of the present invention, and the technical features in the embodiments and examples may be combined with each other without conflict.

The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

The first embodiment is as follows:

as shown in fig. 1 to 7, the present embodiment provides an automatic bag-breaking feeding device, which includes a main body 1 of the bag-breaking feeding device. The upper end one side fixed mounting of main part 1 has drive belt 2, and drive belt 2 is used for the transported substance material, is used for the mill more. The other side of the upper end of the main body 1 is fixedly provided with an electric saw 4, and the electric saw 4 is used for cutting packages to achieve the purpose of breaking the bags. Wherein, the electric saw 4 is preferably provided with two, which can make the bag breaking efficiency higher.

In order to fix the electric saw 4 conveniently, the upper end of the main body 1 is fixedly connected with a second bracket 12, and the upper end of the second bracket 12 is fixedly connected to one side of the electric saw 4 and used for fixing the electric saw 4. The upper end of main part 1 is provided with guide mechanism 3 for remove the material wrapping bag and carry out broken bag to 4 departments of electric saw.

The material guiding mechanism 3 comprises a rotary drum 31, a mounting plate 32, a shaking plate 33 and a pin 34, the upper end of the main body 1 is fixedly connected with the first support 11, and the rotary drum 31 is rotatably mounted at the upper end of the first support 11.

In order to rotate the rotary drum 31 conveniently and discharge the materials in the package after the bag is broken by the electric saw 4 completely, the shaking mechanism 7 is arranged at the upper end of the first bracket 11. As shown in fig. 2, the dithering mechanism 7 includes a brushless motor 71, a hinge support 72, and a third elastic member 73. The brushless motor 71 is preferably a brushless ac reciprocating rotary motor, the brushless motor 71 is fixedly connected to the upper end of the first bracket 11, and the output shaft of the brushless motor 71 is fixedly connected to the speed reducer 74.

The two ends of the rotating drum 31 are fixedly connected with rotating rods, the rotating rods can facilitate the rotating drum 31 to rotate in the first support 11, and one end of the rotating drum 31 is fixedly connected to one surface, far away from the brushless motor 71, of the speed reducer 74.

Preferably, the third elastic element 73 is configured as a spring, and is sleeved on two rotating rods at two ends of the drum 31 for damping the rotation of the drum 31, so that the rotation of the drum 31 is more stable.

One end fixed connection of mounting panel 32 is at the lateral wall of rotary drum 31, and mounting panel 32 sets up to a plurality ofly, and a plurality of mounting panels 32 are the fixed connection of evenly arranging of annular array at the lateral wall of rotary drum 31. The end of the mounting plate 32 far away from the drum 31 is provided with a groove, the hinge support 72 is fixedly mounted in the mounting plate 32, one end of the shaking plate 33 is hinged on the hinge support 72, and the shaking plate 33 can conveniently rotate in the groove of the mounting plate 32 through the hinge support 72. A plurality of slide holes are opened at one end of shaking plate 33 far away from drum 31, and contact pin 34 sets up to be a plurality of, and a plurality of contact pins 34 are slidable mounting respectively in a plurality of slide holes.

Rotate at rotary drum 31, make mounting panel 32 be close to drive belt 2, with 2 parallel and level backs of drive belt, contact pin 34 slides from the slide opening and stretches out, inserts in the material wrapping bag on the drive belt 2, at this moment, rotary drum 31 continuously rotates, can drive the material wrapping bag through contact pin 34 and rotate, rotates the material wrapping bag to 4 cutting wrapping bags of electric saw and breaks the bag.

After the material packaging bag is broken, the brushless motor 71 performs reciprocating motion, the speed reducer 74 enables the rotary drum 31 to rotate in a reciprocating mode, the rotation angle is 1-5 degrees, the rotary drum 31 vibrates through the reciprocating rotation, one end of the shaking plate 33 swings in the mounting plate 32 in a reciprocating mode, and therefore materials in the broken material packaging bag can be discharged comprehensively.

The main body 1 is provided with a first discharge port 13 and a second discharge port 14 for receiving and taking materials and discharging material packaging bags of the materials. Wherein, the first discharge port 13 is located below the material guiding mechanism 3, the discharge port of the first discharge port 13 is located on the side surface of the main body 1, the second discharge port 14 is located below the electric saw 4, and the discharge port of the second discharge port 14 is located at one end of the main body 1.

In order to conveniently receive and take materials from the discharge hole of the second discharge hole 14, a receiving funnel 8 is fixedly arranged on one side of the main body 1. Wherein, receive material funnel 8 block and fix in one side of main part 1, and be less than the discharge gate of second bin outlet 14, make the material of discharge gate exhaust from second bin outlet 14 drop in receiving material funnel 8, receive material funnel 8 and be used for fixed connection in material apparatus for producing's feed inlet top, the material can fall into material survival device from receiving material funnel 8 through self gravity in, material apparatus for producing includes injection molding machine, die casting machine etc..

A control mechanism 5 is disposed in the wobble plate 33 for controlling the pins 34 to move in the slide holes. The control mechanism 5 comprises a winding roller 51, a pull rope 52 and a first elastic element 53, wherein the winding roller 51 is movably arranged in a slide hole of the shaking plate 33, one end of the pull rope 52 is fixedly connected with one end of the inserting pin 34, the other end of the pull rope 52 is fixedly connected with the outer side wall of the winding roller 51, the pull rope 52 is wound on the winding roller 51 by rotating the winding roller 51, and the inserting pin 34 can be pulled to slide and retract into the slide hole through the winding pull rope 52.

To facilitate the extension of the pin 34, a first resilient member 53 is fixedly mounted in the slide hole. Wherein, shake downthehole fixed mounting of sliding plate 33 and have limiting plate 331, limiting plate 331 is used for separating winding roller 51 and contact pin 34, the through-hole has been seted up to limiting plate 331, stay cord 52 runs through the through-hole, first elastic component 53 is preferred to be set up to the spring, and, the one end fixed connection of first elastic component 53 is in the one side of limiting plate 331, the other end fixed connection of first elastic component 53 is in the one end of contact pin 34, provide the elasticity towards slide hole drill way direction through first elastic component 53 to contact pin 34, and then pop out contact pin 34 through the elasticity of first elastic component 53, insert in the wrapping bag.

In order to control the rotation of the winding roller 51, a driving motor 54 is fixedly installed in the wobble plate 33. The driving motor 54 is preferably a servo motor, one end of the output shaft of the driving motor 54 is fixedly connected with a sleeve 542, the output shaft of the driving motor 54 is fixedly sleeved with a first rotary disc 543, and the winding roller 51 is slidably sleeved on the sleeve 542.

Wherein, the first carousel 543 is towards the one side fixedly connected with fixture block 541 of the wire winding roller 51, a plurality of card holes 511 have been seted up towards the one end of first carousel 543 to the wire winding roller 51, card hole 511 is the even one side of arranging at the wire winding roller 51 of annular array, through sliding wire winding roller 51 on sleeve 542, make fixture block 541 block in card hole 511, can make wire winding roller 51 and first carousel 543 fixed connection, and then after opening driving motor 54, drive wire winding roller 51 through first carousel 543 and rotate.

When the wire winding roller 51 slides on the outer side wall of the sleeve 542 away from the first rotary plate 543, so that the latch 541 is separated from the latch hole 511, the wire winding roller 51 can rotate in the slide hole of the swinging plate 33, and the pull rope 52 can drive the wire winding roller 51 to rotate after the pin 34 is ejected by the elastic force of the first elastic member 53.

The shaking plate 33 is provided with a sliding mechanism 6 for sliding the winding roller 51 on the outer wall of the sleeve 542. The slide mechanism 6 includes a second elastic member 61 and a first cam 62, the first cam 62 is rotatably installed in the wobble plate 33, and the second elastic member 61 is preferably a spring. The second elastic member 61 is sleeved on the outer side wall of the sleeve 542, and the second elastic member 61 is located between the first rotary plate 543 and the winding roller 51, and is used for providing an elastic force to the winding roller 51, so that the winding roller 51 is far away from the first rotary plate 543.

In order to facilitate the rotation of the winding roller 51 at the second elastic member 61 side and to cause the abrasion of the winding roller 51, a second rotary disc 611 is fixedly connected to one end of the second elastic member 61. The second rotating disk 611 is slidably sleeved on the outer side wall of the sleeve 542. One side slidable mounting of sleeve 542 has third carousel 63, and wherein, the one end fixedly connected with slide bar 631 of third carousel 63, the spout has been seted up to the one end of sleeve 542, and slide bar 631 slides and pegs graft in the spout of sleeve 542, slides in the spout through slide bar 631, and then makes third carousel 63 slide in the one end of sleeve 542.

The first cam 62 is rotatably mounted on one side of the third turntable 63, and the outer side wall of the first cam 62 is attached to the third turntable 63, after the first cam 62 rotates, the outer side wall farthest from the center of the rotation circle drives the third turntable 63 to slide toward the driving motor 54, so that the third turntable 63 pushes the winding roller 51 to move toward the driving motor 54, and the fixture block 541 is clamped in the fixture hole 511.

A driven gear 621 is fixedly connected to a lower end of the first cam 62, and is used for driving the first cam 62 to rotate. The driving gear 64 is rotatably mounted in the shaking plate 33, the motor for driving the driving gear 64 to rotate is fixedly mounted in the shaking plate 33, the driving gear 64 is fixedly connected to an output shaft of the motor, the driving gear 64 is driven by the motor to rotate, the driven gear 621 is meshed with the driving gear 64, the driven gear 621 is driven by the rotation of the driving gear 64 to rotate, and then the first cam 62 is driven to rotate.

The second turntable 611 and the third turntable 63 preferably use flat ball bearings, and the winding roller 51 is convenient to rotate through the second turntable 611 and the third turntable 63.

This embodiment provides an automatic broken bag throws material device, through the fixed material wrapping bag of contact pin 34, it rotates to drive mounting panel 32 through rotating rotary drum 31, move the material wrapping bag and cut broken bag to 4 departments of electric saw, make the material flow collect, it makes the perpendicular downwards and shrink contact pin 34 of mounting panel 32 to rotate rotary drum 31, the material wrapping bag that can make the material evacuation drops downwards along with the gravity of self and collects, the broken bagging apparatus of current material has been solved and has leaked the back at the material from material wrapping bag opening, the problem of collecting is together fallen along with the material easily to the material wrapping bag of shrivelled.

Example two:

as shown in the figures, the embodiment provides an automatic bag breaking and feeding method, which adopts the automatic bag breaking and feeding device according to the first embodiment, and includes the following steps:

move the material wrapping bag to guide mechanism 3 department through drive belt 2, rotary drum 31 rotates, makes mounting panel 32 be close to drive belt 2, and at this moment, pops out contact pin 34 in the guide mechanism 3 through control mechanism 5, specifically includes:

when the groove opening of the mounting plate 32 faces the transmission belt 2, the winding roller 51 is driven to rotate by the driving motor 54, so that the pulling rope 52 is scattered from the winding roller 51, and the inserting pin 34 is ejected out by the first elastic member 53. The inserting pin 34 slides out of the sliding hole and is inserted into the material packaging bag on the transmission belt 2, at the moment, the rotary drum 31 drives the inserting pin 34 to rotate continuously, and the material packaging bag is rotated to the electric saw 4 through the inserting pin 34 to be broken;

After the materials in the material packaging bag are completely discharged, when the rotary drum 31 continuously rotates until the mounting plate 32 is vertically downward, the groove opening of the mounting plate 32 is downward, and the contact pin 34 is contracted into the shaking plate 33 through the control mechanism 5; the mechanism comprises a winding roller 51 rotating reversely, a winding pull rope 52 winding the inserting needle 34 to the swinging plate 33.

At this moment, the broken material packaging bag can fall to the first discharging port 13 along with the self gravity.

This embodiment provides an automatic broken bag throws material method, stretch out from rocking board 33 one end through contact pin 34 and insert in the material wrapping bag, fixed material wrapping bag, rethread rotates rotary drum 31 and drives mounting panel 32 and rotate, remove the material wrapping bag to 4 departments of electric saw cut broken bag, make the material flow collect, it makes mounting panel 32 perpendicular downwards to rotate rotary drum 31 again, shrink contact pin 34 this moment, can make the wrapping bag of material evacuation drop downwards along with the gravity of self and collect, solved the broken bagging apparatus of current material and leaked the back at the material from the material wrapping bag opening, the problem of collecting is together fallen along with the material easily to the material wrapping bag of shrivelled.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. An automatic bag breaking and feeding device comprises a main body (1), and is characterized in that the main body (1) is fixedly connected with a first support (11) and a transmission belt (2) for conveying materials, and the first support (11) is rotatably connected with a material guide mechanism (3);

the material guide mechanism (3) comprises a rotary drum (31), a mounting plate (32), a shaking plate (33) and a contact pin (34), the rotary drum (31) is rotatably connected with the first support (11), one end, close to the rotary drum (31), of the mounting plate (32) is fixedly connected to the outer side wall of the rotary drum (31), one end, far away from the rotary drum (31), of the mounting plate (32) is rotatably connected with the shaking plate (33), and one end, far away from the rotary drum (31), of the shaking plate (33) is slidably connected with the contact pin (34);

the main body (1) is fixedly connected with a second bracket (12), and one end of the second bracket (12) is fixedly connected with an electric saw (4) for breaking bags; a control mechanism (5) for controlling the movement of the contact pin (34) is arranged in the shaking plate (33);

main part (1) still is equipped with first bin outlet (13) that are used for discharging the material wrapping bag and second bin outlet (14) that are used for discharging the material, the output fixedly connected with of main part (1) is used for connecing receipts material funnel (8) of getting the material.

2. The automatic bag breaking and feeding device according to claim 1, wherein the control mechanism (5) comprises a winding roller (51), a pulling rope (52) and a first elastic member (53), the winding roller (51) is movably connected inside the shaking plate (33), two ends of the pulling rope (52) are respectively connected with the pin (34) and the outer side wall of the winding roller (51), the first elastic member (53) is fixedly connected with the pin (34), and a driving motor (54) for driving the winding roller (51) to rotate is fixedly installed in the shaking plate (33).

3. The automatic bag breaking and feeding device according to claim 2, wherein a limiting plate (331) for separating the winding roller (51) and the insertion pin (34) is fixedly installed in the sliding hole of the shaking plate (33), the limiting plate (331) is provided with a through hole for allowing the pulling rope (52) to pass through, and two ends of the first elastic member (53) are respectively and fixedly connected with the limiting plate (331) and the insertion pin (34).

4. The automatic bag breaking and feeding device according to claim 2, wherein a sleeve (542) is fixedly connected to an output shaft of the driving motor (54), the winding roller (51) is slidably sleeved with an outer side wall of the sleeve (542), a first rotary plate (543) is fixedly sleeved on the output shaft of the driving motor (54), and a clamping block (541) is fixedly connected to one surface, facing the winding roller (51), of the first rotary plate (543).

5. The automatic bag breaking and feeding device according to claim 1, wherein a sliding mechanism (6) for driving the winding roller (51) to slide is arranged in the shaking plate (33), the sliding mechanism (6) comprises a second elastic member (61) and a first cam (62), the second elastic member (61) is sleeved with the outer side wall of the sleeve (542) and is located between the first rotary plate (543) and the winding roller (51), and the first cam (62) is rotatably connected with the winding roller (51).

6. The automatic bag breaking and feeding device according to claim 4, wherein one end of the winding roller (51) close to the driving motor (54) is rotatably connected with a second rotating disc (611), the second rotating disc (611) is rotatably sleeved on the outer side wall of the sleeve (542), and the second rotating disc (611) is fixedly connected with the second elastic member (61).

7. The automatic bag breaking and feeding device according to claim 6, wherein a third rotating disc (63) is rotatably mounted at one end of the winding roller (51) far away from the driving motor (54), a sliding rod (631) is fixedly connected to one end of the third rotating disc (63), a sliding groove is formed at one end of the sleeve (542), and the sliding rod (631) is slidably inserted into the sleeve (542) through the sliding groove.

8. The automatic bag breaking and feeding device according to claim 5, wherein a driven gear (621) is fixedly connected to the lower end of the first cam (62), and a driving gear (64) meshed with the driven gear (621) is rotatably connected to the shaking plate (33).

9. An automatic bag-breaking and feeding device according to claim 1, characterized in that the mounting plate (32) is provided with a shaking mechanism (7) for shaking the shaking plate (33), and the shaking mechanism (7) comprises a brushless motor (71), a hinge support (72) and a third elastic member (73); the hinged support (72) is fixedly connected in a groove of the mounting plate (32), the shaking plate (33) is hinged to the hinged support (72), and two ends of the rotating cylinder (31) are fixedly connected with rotating rods which are used for rotating in the first support (11); the brushless motor (71) is fixed at the upper end of the first bracket (11), and an output shaft of the brushless motor (71) is fixedly connected with a speed reducer (74); the third elastic piece (73) is sleeved on the rotating rod.

10. An automatic bag-breaking feeding method, which adopts the automatic bag-breaking feeding device as claimed in any one of claims 1 to 9, and is characterized by comprising the following steps:

the material packaging bag is moved to the material guide mechanism (3) through the transmission belt (2);

a contact pin (34) in the material guide mechanism (3) is ejected out through the control mechanism (5);

the inserting pins (34) are inserted into the material packaging bags on the transmission belt (2), the rotary drum (31) drives the inserting pins (34) to continuously rotate, and the material packaging bags are conveyed to the electric saw (4) through the inserting pins (34) to be broken and discharged;

when the rotary drum (31) continuously rotates until the mounting plate (32) is vertically downward, the contact pin (34) is contracted into the shaking plate (33) through the control mechanism (5);

the broken material packaging bag falls to a first discharging port (13) along with the gravity of the material packaging bag.