CN213110058U - Bag opening machine - Google Patents

Abstract

The utility model is suitable for a tear a bag equipment technical field open, provide a bag opening machine, including the frame, its characterized in that, still including the extracting device that is used for colluding the wrapping bag that gets the material, be used for driving the extracting device motion and transport the wrapping bag to the pay-off subassembly of unloading position and be used for lacerating the cutting assembly who lies in the wrapping bag on the extracting device, on the pay-off subassembly located the frame, material level department under cutting assembly correspondence was located. The utility model provides a bag opening machine, it can realize the broken bag unloading of high efficiency to improve the empty rate of wrapping bag behind the unloading, and the unloading process can not the wrapping bag produce the piece, guaranteed the clean pollution-free of material.

Description

Bag opening machine

Technical Field

The utility model belongs to the technical field of tear open a bag equipment, especially, relate to a tear open bag machine.

Background

The bag opening machines in the current market are various in types, most of the bag opening machines adopt a cutting sheet arranged in a winding drum, the cutting sheet cuts the packaging bags through rotation, or the packaging bags are broken by adopting the same principle as a crusher to discharge materials. However, these two types of bag opening machines have the following problems:

1. the raw material waste is very serious: basically 1 to 5 percent of raw materials are mixed with the packaging bag, the emptying rate is low, and the residual quantity is large;

2. large dust: the powder raw materials are stirred and rolled to generate large dust which is harmful to health and pollutes the environment, and the dust leakage is serious;

3. the grid is often plugged: after the packaging bag is cut into a plurality of sections, the packaging bag becomes fragments and often blocks the grids;

4. the raw materials are seriously polluted: the packaging bag is cut into a plurality of sections and then is stirred with the raw materials, so that partial packaging bag fragments are mixed in the raw materials, the raw materials cannot be filtered completely, and the raw materials are seriously polluted.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving one of above-mentioned technical problem at least, provides a bag opening machine, and it can realize the broken bag unloading of high efficiency to improve the empty rate of wrapping bag behind the unloading, and the unloading process can not the wrapping bag produce the piece, has guaranteed the clean pollution-free of material.

The technical scheme of the utility model is that: the utility model provides a bag opening machine, includes the frame, still including be used for colluding get the wrapping bag of carrying the material extracting device, be used for driving the extracting device motion will the wrapping bag transports to the pay-off subassembly of unloading position and is used for lacerating and is located the cutting components of wrapping bag on the extracting device, the pay-off subassembly is located in the frame, the cutting components correspondence is located unloading position department.

Optionally, the feeding assembly comprises a sliding plate slidably connected to the frame and a driving motor for driving the sliding plate to move relative to the frame.

Optionally, the material taking device comprises a mounting plate, a first driving piece used for driving the mounting plate to move in the vertical direction and a hooking component arranged on the mounting plate and used for hooking the packaging bag, and the first driving piece is arranged on the sliding plate.

Optionally, collude and get the subassembly and include lifting hook and second driving piece, the lifting hook with the mounting panel rotates to be connected, the second driving piece is used for the drive the lifting hook is relative the mounting panel rotates and colludes the wrapping bag.

Optionally, the lifting hook includes hook portion and connecting portion, the one end of connecting portion with hook portion connects, the other end of connecting portion with the mounting panel rotates to be connected.

Optionally, the bag opener further comprises a bag removing assembly for removing the cut bag from the hook.

Optionally, take off the bag subassembly including taking off a bag ware and screens subassembly, take off the bag ware pass through torsion spring with the mounting panel rotates to be connected, it is provided with and is used for supplying to take off the bag ware the hole of keeping away that hook portion passed, the screens subassembly is used for keeping when the unloading take off the bag ware and be in vertical state.

Optionally, the bag removing assembly further comprises a trigger switch, and the trigger switch is arranged on the mounting plate and used for releasing the connection between the bag remover and the clamping assembly when the lifting hook rotates upwards and contacts with the trigger switch so as to enable the bag remover to rotate upwards.

Optionally, the clamping assembly comprises a clamping member, a first blocking member, a first connecting member and a first mounting seat, the first mounting seat is provided with a first mounting cavity for mounting the clamping piece, the first blocking piece and the first connecting piece, a first through hole and a second through hole are respectively arranged at two opposite ends of the first mounting cavity, the first gear part is positioned between the clamping part and the first connecting part, the clamping piece extends out of the first installation cavity through the first through hole, the size of the first blocking piece is larger than the aperture of the first through hole, the clamping piece is provided with a clamping groove used for being matched with the bag-removing device, one end of the first connecting piece, which is far away from the first blocking piece, extends out of the first mounting cavity through a second through hole, and a first elastic part is arranged between the first gear part and the cavity wall where the second through hole is located.

Optionally, the trigger switch includes a trigger, a second stopper, a second connector and a second mounting seat, the second mounting seat is provided with a second mounting cavity for mounting the touch piece, the second stop piece and the second connecting piece, a third through hole and a fourth through hole are respectively arranged at two opposite ends of the second mounting cavity, the second retaining member is positioned between the touch member and the second connecting member, the touch piece extends out of the second mounting cavity through the third through hole, the size of the second retaining piece is larger than the aperture of the third through hole, one end of the second connecting piece far away from the second retaining piece extends out of the second mounting cavity through a fourth through hole, a second elastic part is arranged between the second retaining part and the cavity wall where the fourth through hole is positioned, and one end of the second connecting piece extending out of the second mounting cavity is connected with one end of the first connecting piece extending out of the first mounting cavity through a steel wire rope.

Optionally, the cutting assembly includes a blade and a third drive for driving the blade to slide relative to the bag to cut an opening in a side of the bag.

Optionally, the third driving piece is a cylinder or a hydraulic cylinder, the cutting assembly further comprises a first supporting piece and a second supporting piece, the first supporting piece, the second supporting piece and the blade are sequentially connected end to end, two ends of the blade are respectively connected with one end of the first supporting piece and one end of the second supporting piece in a rotating mode, a communicating hole is formed in the other end of the first supporting piece, the other end of the second supporting piece penetrates through the communicating hole, the second supporting piece penetrates through one end of the communicating hole to be connected with a stopping portion, a third elastic piece is sleeved outside the second supporting piece, and one end, connected with the rotating blade, of the first supporting piece is connected with an output shaft of the cylinder or the hydraulic cylinder.

Optionally, the bag opener further comprises a limit switch which is triggered by the second driving element or the sliding plate to control the cutting assembly to work when the packaging bag is located at the discharging position.

The utility model provides a bag opening machine imitates artifical bag opening through the cooperation between extracting device, pay-off subassembly and the cutting element, colludes the wrapping bag that carries the material through extracting device earlier to with the wrapping bag lift up, then drive extracting device through the pay-off subassembly motion, transport the wrapping bag to the unloading position, cut open the wrapping bag through the cutting element at last, make the material flow from the incision and realize the unloading. Compare with the bag tearing machine of traditional reel formula and broken formula, the utility model discloses an emptying rate of bag tearing machine unloading back wrapping bag is high, and the unloading process produces the few of dust, and the unloading process material can not thoughtlessly have the piece of wrapping bag simultaneously, and is clean pollution-free. The working efficiency is high, and the work is reliable and stable.

Drawings

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

Fig. 1 is a schematic structural view of a bag opening machine provided by an embodiment of the present invention;

fig. 2 is a top view of a bag opening machine provided by an embodiment of the present invention;

fig. 3 is a schematic structural view of a blocking assembly in the bag opening machine according to an embodiment of the present invention;

fig. 4 is another schematic structural view of the blocking assembly in the bag opening machine according to the embodiment of the present invention;

fig. 5 is a schematic structural view of a touch switch in the bag opening machine according to the embodiment of the present invention;

fig. 6 is a schematic structural view of a cutting assembly in the bag opening machine according to an embodiment of the present invention;

fig. 7 illustrates a material taking device working step 1 in a bag opening machine according to an embodiment of the present invention;

fig. 8 shows a material taking device in a bag opening machine according to an embodiment of the present invention, in operation step 2;

fig. 9 illustrates a material taking device working step 3 in the bag opening machine according to the embodiment of the present invention;

fig. 10 shows a material taking device working step 4 in the bag opening machine according to the embodiment of the present invention;

fig. 11 illustrates a working step 1 of a bag removing assembly in a bag opening machine according to an embodiment of the present invention;

fig. 12 illustrates a working step 2 of a bag removing assembly in a bag removing machine according to an embodiment of the present invention;

fig. 13 illustrates a working step 3 of a bag removing assembly in the bag removing machine according to the embodiment of the present invention;

fig. 14 illustrates a working step 4 of a bag removing assembly in the bag removing machine according to the embodiment of the present invention;

fig. 15 illustrates a working step 1 of a cutting assembly in a bag opening machine according to an embodiment of the present invention;

fig. 16 shows a working step 2 of a cutting assembly in a bag opening machine according to an embodiment of the present invention.

In the figure, 1-a frame, 2-a material taking component, 21-a mounting plate, 22-a first driving component, 23-a hooking component, 231-a hook, 2311-a hooking part, 2312-a connecting part, 232-a second driving component, 31-a sliding plate, 32-a driving motor, 33-a rotating shaft, 34-a pulley, 35 pairs of pulleys, 36-a belt, 4-a cutting component, 41-a blade, 42-a third driving component, 43-a second supporting component, 431-a stopping part, 44-a first supporting component, 45-a third elastic component, 5-a bag removing component, 51-a bag removing device, 52-a clamping component, 520-a clamping groove, 521-a clamping component, 522-a first stopping component, 523-a first connecting component and 524-a first mounting seat, 525-a first installation cavity, 526-a first elastic element, 53-a torsion spring, 54-a trigger switch, 541-a trigger element, 542-a second stop element, 543-a second connecting element, 544-a second installation seat, 545-a second installation cavity, 546-a second elastic element, 55-a steel wire rope, 56-a guide wheel, 57-a limit switch and 8-a packaging bag.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It should be noted that the terms "disposed" and "connected" should be interpreted broadly, and may be, for example, directly disposed, installed, connected, or indirectly disposed and connected through intervening components and intervening structures.

In addition, in the embodiments of the present invention, if there are orientations or positional relationships indicated by "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," etc., based on the orientations or positional relationships shown in the drawings or the conventional placement state or use state, the description is only for convenience of description and simplification, but the indication or suggestion that the indicated structure, feature, device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

The various features and embodiments described in the detailed description may be combined in any suitable manner, for example, different embodiments may be formed by combining different features/embodiments, and various combinations of features/embodiments are not separately described in order to avoid unnecessary repetition in the present disclosure.

As shown in fig. 1 and 2, the embodiment of the utility model provides a bag opening machine, which comprises a frame 1, extracting device 2, pay-off subassembly and cutting assembly 4, the pay-off subassembly is located on the frame 1, wherein, extracting device 2 is used for colluding gets the wrapping bag 8 that carries the material and lifts up wrapping bag 8, the pay-off subassembly is used for driving extracting device 2 motion, transport wrapping bag 8 to the unloading position, cutting assembly 4 corresponds and locates unloading position department, be used for lacerating wrapping bag 8 and form the incision and carry out the unloading, through extracting device 2, artifical unloading is simulated in the cooperation between pay-off subassembly and the cutting assembly 4, guarantee the empty rate of wrapping bag 8 behind the unloading, avoid causing the material waste, and can not thoughtlessly have wrapping bag 8 pieces in the unloading process material, ensure that the material is clean pollution-free, its work efficiency is high, use the good reliability.

Specifically, a material collecting hopper for collecting materials is further arranged below the blanking position.

Alternatively, as shown in fig. 1 and 2, the feeding assembly includes a sliding plate 31 slidably connected to the frame 1 and a driving motor 32 for driving the sliding plate 31 to move relative to the frame 1, and the automatic feeding is realized by the driving motor 32. Specifically, the arrangement of the sliding plate 31 and the frame 1 may be: two opposite ends of the sliding plate 31 are respectively connected with a rotating shaft 33, the two rotating shafts 33 are both vertical to the moving direction of the sliding plate 31, two ends of the rotating shaft 33 are provided with pulleys 34, a slideway is arranged on the frame 1, the pulleys 34 fall into the slideway and can roll along the slideway, the sliding plate 31 can move relative to the frame 1 when external force acts, a driving motor 32 can be positioned on one corner of the frame 1, an output shaft of the driving motor 32 is connected with a main belt pulley, the frame 1 is also fixedly connected with other three auxiliary belt pulleys 35, connecting lines of the main belt pulley and the three auxiliary belt pulleys 35 which are sequentially connected form a rectangle, the sliding plate 31 is also fixedly connected with one auxiliary belt pulley 35, and five belt pulleys are connected through belts, so when the driving motor 32 rotates, the main belt pulley drives the four auxiliary belt pulleys 35 to rotate, and the sliding plate 31 is driven to move due to the sliding connection between the sliding plate, wherein the number of the secondary pulleys 35 can be set according to actual conditions. Or, as another embodiment, the sliding plate 31 is provided with sliding blocks at two opposite ends parallel to the moving direction thereof, the rack 1 is provided with a guide rail in sliding fit, the sliding blocks are provided with threaded holes arranged along the moving direction of the sliding plate 31, the output shaft of the driving motor 32 is connected with a lead screw through a transmission shaft, the lead screw passes through the threaded holes of the sliding blocks, and when the driving motor 32 drives the lead screw to rotate, the sliding blocks can slide along the lead screw to drive the sliding plate 31 to move. The number of the driving motors 32 may be one, and at this time, a threaded hole is formed in one of the sliding blocks at the two ends of the sliding plate 31; the number of the driving motors 32 can also be two, and the sliding blocks on the two ends of the sliding plate 31 are provided with threaded holes, in this way, when the sliding plate operates, the rotating speed and the rotating direction of the two motors are ensured to be the same. In practice, the driving motor 32 can also drive the sliding plate 31 to move by other means, such as rack drive, chain drive, etc.

Specifically, the driving motor 32 can be a stepping motor, which has excellent start-stop and reverse response and good control performance, and can realize accurate control of the movement stroke of the sliding plate 31.

Alternatively, as shown in fig. 1, the material taking device 2 includes a mounting plate 21, a first driving member 22 for driving the mounting plate 21 to move in the vertical direction, and a hooking component 23 disposed on the mounting plate 21 for hooking the packaging bag 8, wherein the first driving member 22 is disposed on the sliding plate 31. During operation, refer to fig. 9 and 10, control mounting panel 21 downstream through first driving piece 22 earlier for collude and get subassembly 23 and be close to wrapping bag 8, be convenient for collude and get subassembly 23 and collude wrapping bag 8, catch the subassembly 23 and catch the wrapping bag 8 after, first driving piece 22 control mounting panel 21 upward movement, thereby lift wrapping bag 8, make wrapping bag 8 be in unsettled state, do benefit to and transport wrapping bag 8 to the material level of unloading.

In particular, the first drive member 22 may be a pneumatic or hydraulic cylinder or an electric motor. In this embodiment, the first driving member 22 is an air cylinder, wherein a piston rod of the air cylinder is directly and fixedly connected to the mounting plate 21, and the piston rod of the air cylinder is arranged along the vertical direction, and the mounting plate 21 can be controlled to move up and down in the vertical direction by controlling the extension and retraction of the piston rod of the air cylinder.

Alternatively, as shown in fig. 1 and fig. 2, the hooking component 23 includes a hook 231 and a second driving component 232, the hook 231 is rotatably connected to the mounting plate 21, the second driving component 232 is disposed on the mounting plate 21, and the second driving component 232 is configured to drive the hook 231 to rotate relative to the mounting plate 21. Specifically, the hook 231 rotates downward to hook the packaging bag 8; the hook 231 is rotated upward to remove the packing bag 8 from the hook 231.

Alternatively, as shown in fig. 1, the hook 231 includes a hook portion 2311 and a connection portion 2312, one end of the connection portion 2312 is connected to the hook portion 2311, and the other end of the connection portion 2312 is rotatably connected to the mounting plate 21, wherein the hook portion 2311 is used for being inserted into the packaging bag 8 to hook the packaging bag 8 so as to lift the packaging bag 8. Specifically, the angle between the hook 2311 and the connecting portion 2312 may be 60 ° to 90 °, so that the hook 2311 may be smoothly inserted into the packaging bag 8, and it is ensured that the packaging bag 8 does not fall off the hook 2311 during the movement of the packaging bag 8 to the discharging position. In the specific embodiment, the included angle between the hooking portion 2311 and the connecting portion 2312 is 90 °, the rotation angle of the hook 231 relative to the mounting plate 21 is 90 °, and in the rotation process of the hook 231 relative to the mounting plate 21, if the connecting portion 2312 changes from a parallel state with the mounting plate 21 to a perpendicular state with the mounting plate 21, the process of hooking the packaging bag 8 is performed; if the connecting portion 2312 is changed from a state perpendicular to the mounting plate 21 to a state parallel to the mounting plate 21, this is a process for controlling the hook 231 to return after the unloading is finished, and for preparing to hook off a packaging bag 8, in this process, the packaging bag 8 falls off from the hook 231 as the hook 231 rotates upward.

In particular, the second drive 232 may be a pneumatic or hydraulic cylinder or an electric motor. In this embodiment, referring to fig. 11 to 14, the second driving member 232 is a cylinder, a piston rod of the cylinder is rotatably connected to the connecting portion 2312, and the cylinder is disposed on a side of the connecting portion 2312 opposite to the hooking portion 2311, wherein, as shown in fig. 12, the piston rod is contracted to drive the connecting portion 2312 to rotate upward (toward the cylinder), and when the connecting portion 2312 is parallel to the mounting plate 21, the cylinder stops operating; the piston rod is extended to drive the connecting portion 2312 to rotate downward (back to the cylinder), so that the hook portion 2311 is gradually inserted into the packaging bag 8, and when the connecting portion 2312 is perpendicular to the mounting plate 21, the cylinder stops operating. In practical applications, the rotation angle of the hook 231 relative to the mounting plate 21 can be other values.

Specifically, there is at least one hook 231, and when the number of hooks 231 is greater than two, at least two hooks 231 are distributed side by side and connected into a whole through the fixing member, so that the hooks 231 rotate synchronously, and at this time, the piston rod of the cylinder can be rotatably connected with the fixing member.

Specifically, the material taking device 2 may further be provided with an identification sensor (not shown in the figure) for detecting whether the packaging bag 8 exists below the material taking device, and feeding back a detection result to the driving motor 32 to control the driving motor 32 so that the sliding plate 31 is always lifted above the packaging bag 8, thereby improving the accuracy of the hooking component 23 for hooking the packaging bag 8. For example, the profile information of the packaging bag is acquired by the recognition sensor to ensure that the hook 2311 is inserted into the packaging bag 8 at the same position every time.

Optionally, as shown in fig. 1, the bag tearing machine further includes a bag removing assembly 5 for removing the discharged packaging bag 8 from the material taking device 2, so as to prevent the discharged packaging bag 8 from remaining on the hook 231 and affecting the next discharging.

Specifically, the bag opening machine is further provided with a bag releasing position, the bag releasing position can be arranged between the discharging position and the position above the packaging bag 8, namely after discharging is finished, the feeding assembly drives the material taking device 2 to move to the bag releasing position, then the packaging bag 8 is released from the lifting hook 231, and the packaging bag 8 and the falling materials are prevented from being mixed together.

Alternatively, as shown in fig. 1, the bag removing assembly 5 includes a bag remover 51 and a blocking assembly 52, the bag remover 51 is rotatably connected to the mounting plate 21 by a torsion spring 53, and the bag remover 51 is provided with a escaping hole for the hooking portion 2311 to pass through, when the bag 8 is hooked by the hook 231, the bag remover 51 is located between the bag 8 and the connecting portion 2312, and the blocking assembly 52 is used for keeping the bag remover 51 in a vertical position during the discharging. Thus, when the hook 231 is rotated upward, the bag 8 is stopped by the bag remover 51 from moving along with the hook 231 and is released from the hook 231 because the bag remover 51 is kept still.

Specifically, as shown in fig. 1, the bag removing assembly 5 further includes a trigger switch 54, the trigger switch 54 is disposed on the mounting plate 21, and the trigger switch 54 is used for releasing the connection between the bag remover 51 and the detent assembly 52. When the hook 231 rotates upward to a certain angle, the hook 231 will contact the trigger switch 54, the trigger switch 54 is toggled to release the connection between the bag-removing device 51 and the blocking component 52, so that the bag-removing device 51 rotates toward the hook 231, and the bag-removing device 51 is close to the hook 231 under the action of the torsion spring 53, when the hook 231 rotates downward, the hook 231 abuts against the bag-removing device 51, so as to drive the bag-removing device 51 to rotate together, when the hook 231 rotates downward to a set angle, the bag-removing device 51 is matched with the blocking component 52, and the bag-removing device 51 is fixed in the vertical direction. The bag-removing component 5 works according to the following principle: after blanking is finished, the feeding assembly drives the material taking device 2 to move to the bag removing position, then the second driving element 232 is started, the lifting hook 231 is controlled to rotate upwards, the packaging bag 8 can move along with the lifting hook 231, because the bag removing device 51 is kept still at the moment, the hooking part 2311 is gradually pulled out of the avoiding hole of the bag removing device 51 at the moment, the packaging bag 8 is blocked by the bag removing device 51, after the hooking part 2311 is completely pulled out of the avoiding hole, the packaging bag 8 falls off from the lifting hook 231, and after the lifting hook 231 is turned upwards to a certain angle, the connecting part 2312 of the lifting hook 231 can be contacted with the touch switch 54, the touch switch 54 acts to remove the connection between the bag removing device 51 and the clamping assembly 52, so that the bag removing device 51 rotates towards the lifting hook 231, and finally the bag removing device 51 is close to.

In this embodiment, the torsion spring 53 is a 180 ° torsion spring, i.e. the 180 ° torsion spring provides a sufficient turning force for the bag remover 51 when the bag remover 51 is kept in the vertical direction.

Optionally, as shown in fig. 3 and 4, the locking assembly 52 includes a locking member 521, a first blocking member 522, a first connecting member 523 and a first mounting seat 524, the first mounting seat 524 is provided with a first mounting cavity 525 for mounting the locking member 521, the first blocking member 522 and the first connecting member 523, opposite ends of the first mounting cavity 525 are respectively provided with a first through hole and a second through hole, the first blocking member 522 is located between the locking member 521 and the first connecting member 523, the locking member 521 extends out of the first mounting cavity 525 through the first through hole, the size of the first blocking member 522 is larger than the aperture of the first through hole, the locking member 521 is provided with a locking slot 520 for cooperating with the bag remover 51, one end of the first connecting member 523 away from the first blocking member 522 extends out of the first mounting cavity 525 through the second through hole, a first elastic member 526 is arranged between the first blocking member 522 and a cavity wall of the second through hole, the first elastic member is used for applying a pressure to the first blocking member 522, the clamping piece 521 is pushed out of the first mounting cavity 525, so that the packaging clamping piece 521 is matched with the clamping position of the bag remover 51. When the connection between the clamping assembly 52 and the bag stripper 51 needs to be released, a pulling force is applied to one end of the first connecting member 523 away from the first blocking member 522, the first connecting member 523 is pulled out of the first mounting cavity 525, the clamping member 521 retracts towards the first mounting cavity 525 at the moment, the bag stripper 51 is separated from the clamping groove 520, and the clamping cooperation between the bag stripper 51 and the clamping groove 520 is released.

Specifically, bag releasing device 51 includes joint head and the mainboard that can block in draw-in groove 520, avoids the hole to locate on the mainboard, and joint head and mainboard connection just joint head and mainboard are located the upper and lower both sides of mounting panel 21 respectively, and in this implementation, screens subassembly 52 locates the upper surface of mounting panel 21, sets up on the mounting panel 21 with keeping away the empty region, and the joint head passes behind the keeping away empty region and cooperates with draw-in groove 520, and the joint head can be in keeping away the rotation of empty regional.

Optionally, as shown in fig. 1 and fig. 5, the tact switch 54 includes a touch piece 541, a second stop piece 542, a second connecting piece 543, and a second mounting seat 544, the second mounting seat 544 is provided with a second mounting cavity 545 for mounting the touch piece 541, the second stop piece 542, and the second connecting piece 543, opposite ends of the second mounting cavity 545 are respectively provided with a third through hole and a fourth through hole, the second stop piece 542 is located between the touch piece 541 and the second connecting piece 543, the touch piece 541 extends out of the second mounting cavity 545 through the third through hole, the size of the second stop piece 542 is larger than the aperture of the third through hole, one end of the second connecting piece 543 away from the second stop piece 542 extends out of the second mounting cavity 545 through the fourth through hole, a second elastic piece 546 is provided between the second stop piece 542 and the cavity wall of the fourth through hole, and one end of the second connecting piece 543 extending out of the second mounting cavity 545 is connected with one end of the first connecting piece 523 extending out of the first mounting cavity 525 through a wire rope 55, and the direction of the steel cable 55 is changed by the guide wheel 56, so that when the second connecting piece 543 is ejected out of the second mounting cavity 545, the first connecting piece 523 is pulled out of the first mounting cavity 525 by the steel cable 55, wherein the second elastic piece 546 is used for applying pressure to the second blocking piece 542 to eject the touch piece 541 out of the second mounting cavity 545. With the upward rotation of the hook 231, the connecting portion 2312 contacts the touch piece 541, the connecting portion 2312 pushes the touch piece 541 to move towards the inside of the second installation cavity 545, the second connecting piece 543 is ejected out of the second installation cavity 545, the second connecting piece 543 pulls the steel wire rope 55, the first connecting piece 523 is pulled out towards the outside of the first installation cavity 525 through the steel wire rope 55, the clamping piece 521 retracts into the first installation cavity 525 along with the movement of the first connecting piece 523, and the clamping matching between the bag remover 51 and the clamping groove 520 is released; when the connecting portion 2312 is away from the contact piece 541, the hook 231 rotates downward, and the first elastic piece 526 and the second elastic piece 546 push the blocking piece 521 and the contact piece 541 out of the first mounting cavity 525 and the second mounting cavity 545, respectively.

Specifically, the first elastic member 526 and the second elastic member 546 may be springs or elastic rubber. In this embodiment, the first elastic member 526 and the second elastic member 546 are both springs, one spring is respectively sleeved on the first connecting member 523 and the second connecting member 543, and the inner diameter of each spring is greater than the apertures of the second through hole and the third through hole.

As another embodiment, the first connecting member 523 may be a metal member, and an electromagnetic relay is disposed at an end of the first connecting member 523, which is close to the second mounting hole, where the end of the first connecting member 523 extends out of the second mounting hole, and at this time, the touch switch 54 is used to control the on/off of the circuit of the electromagnetic relay, and along with the upward rotation process of the hook 231, the connecting portion 2312 contacts with the touch switch 54, and at this time, the electromagnetic relay is energized to generate a magnetic field, so as to generate an attractive force on the first connecting member 523, and the first connecting member 523 is attracted to the electromagnetic relay, and the locking member 521 retracts into the first mounting cavity 525 to release; the hook 231 rotates downwards, when the connecting portion 2312 is away from the trigger switch 54, the electromagnetic relay is powered off, the magnetic field disappears, the first elastic member 526 resets, and the blocking member 521 is ejected out of the first mounting cavity 525.

Alternatively, as shown in fig. 6, 15 and 16, the cutting assembly 4 comprises a blade 41 and a third driving member 42 for driving the blade 41 to slide relative to the packaging bag 8 to cut the opening on one side of the packaging bag 8, so as to avoid the generation of fragments when the packaging bag 8 is cut and the fragments fall with the materials to pollute the materials.

Optionally, as shown in fig. 6, the cutting assembly 4 further includes a first supporting member 44 and a second supporting member 43, the first supporting member 44, the second supporting member 43 and the blade 41 are sequentially connected end to end, that is, the first supporting member 44, the second supporting member 43 and the blade 41 are connected to enclose a triangle, and two ends of the blade 41 are respectively rotatably connected with the first supporting member 44 and the second supporting member 43, the first supporting member 44 is provided with a communication hole at one end far from the blade 41, the second supporting member 43 passes through the communication hole at one end far from the blade 41, the second supporting member 43 is connected with a stopping portion 431 at one end far from the blade 41 to prevent the second supporting member 43 from falling out of the communication hole, and the second supporting member 43 is externally sleeved with a third elastic member 45, in a normal state, the blade 41 is supported by the third elastic member 45, the blade 41 is at a higher position, and when the blade 41 slides relative to the packaging bag 8, under the action of the third elastic member 45, the blade 41 is always pushed against the packaging bag 8, so that the blade 41 can smoothly cut the notch on the packaging bag 8.

In particular, the third drive member 42 may be a pneumatic or hydraulic cylinder or an electric motor. In this embodiment, the third driving member 42 is a cylinder, one end of the first supporting member 44 connected to the blade 41 is fixedly connected to a piston rod of the cylinder, and the blade 41, the third elastic member 45 and the piston rod are connected to form an equilateral triangle. The blade 41 is controlled to cut the packaging bag 8 by the extension and contraction of the piston rod. In this embodiment, when the third driving member 42 is a cylinder, the cylinder stops after completing one expansion and contraction operation, that is, the piston rod of the cylinder contracts, and after the blade 41 cuts the packaging bag 8, the piston rod extends to return the blade 41 for the next cutting.

Specifically, the third elastic member 45 is a spring or an elastic rubber, and in this embodiment, the second supporting member 43 can also prevent the blade 41 from shaking when sliding relative to the packaging bag 8 to cut the incision on one side of the packaging bag 8, so as to affect the size of the incision cut by the blade 41.

Optionally, as shown in fig. 1, the bag tearing machine further includes a limit switch 57, the limit switch 57 may be disposed on the frame 1, and when the feeding assembly drives the material taking device 2 to move to transport the packaging bag 8 to the discharging position, the limit switch 57 is triggered by the second driving element 232 or the sliding plate 31 to control the cutting assembly 4 to operate, that is, the limit switch 57 controls the third driving element 42 to operate to drive the blade 41 to cut the packaging bag 8, so as to achieve the operation of automatically cutting the packaging bag 8. In the specific application, the limit switch 57 is an electromagnetic relay switch, and when the third driving member 42 is a cylinder, the electromagnetic relay switch is powered on, the piston rod of the cylinder is contracted, the electromagnetic relay switch is powered off, and the piston rod of the cylinder is extended to enable the blade to return to the original position.

In this embodiment, the movement stroke of the sliding plate 31 can be controlled by setting the operation time of the driving motor 32; alternatively, the position of the sliding plate 31 can be confirmed by providing a position sensor (i.e. determining the discharging position and the bag-releasing position), and the driving motor 32 is controlled to start and stop according to the sensed signal, for example, a discharging position sensor is provided at the discharging position, a bag-releasing position sensor is provided at the bag-releasing position, the discharging position sensor feeds back information to the controller after sensing the packaging bag 8 or the sliding plate 31, the driving motor 32 is controlled to stop running and perform discharging, when the residence time of the packaging bag 8 or the sliding plate 31 at the discharging position reaches the set discharging time, the driving motor 32 automatically runs to drive the sliding plate 31 to move to the bag-releasing position, and the bag-releasing position sensor feeds back information to the second driving element 232 to control the hook 231 to rotate upward after sensing the packaging bag.

The embodiment further provides an operation method of the bag opening machine (the embodiment is described by taking the example that the hook 231 and the bag remover 51 are in the initial state and are in the vertical state), and the specific steps are as follows:

s1, the sliding plate 31 is controlled to slide by the driving motor 32, so that the material taking device 2 moves to the upper part of the packaging bag 8;

s2, the second driving member 232 controls the hook 231 to rotate upward so that the hooking portion 2311 faces the packing bag 8;

s3, the first driving piece 22 drives the mounting plate 21 to move downwards to a set position;

s4, the second driving member 232 controls the hook 231 to rotate downwards, so that the hook portion 2311 is inserted into the packaging bag 8, the bag-removing device 51 is located between the packaging bag 8 and the connecting portion 2312, and the first driving member 22 drives the mounting plate 21 to move upwards to lift the packaging bag 8;

s5, the driving motor 32 controls the sliding plate 31 to move to convey the packaging bag 8 to a discharging position;

s6, the second driving piece 232 touches the limit switch 57, the third driving piece 42 is started, the blade 41 is driven to cut an incision on one side of the packaging bag 8, and blanking is carried out;

s7, judging that the blanking time exceeds the set standard time, controlling the sliding plate 31 to move to the bag-releasing position by the driving motor 32, controlling the lifting hook 231 to rotate upwards by the second driving piece 232, and stopping the packaging bag 8 from falling off from the lifting hook 231 by the bag-releasing device 51;

s8, after the hook 231 moves to the set angle, the connecting portion 2312 contacts with the touch switch 54, the touch switch 54 works to release the connection of the clamping component 52 and the bag remover 51, and the bag remover 51 rotates towards the hook 231 under the action of the torsion spring 53 and is close to the hook 231;

and S9, executing the step S1, and circularly blanking.

The working process of the bag opening machine of the embodiment is as follows:

referring to fig. 7 to 10, the blanking process (the embodiment is illustrated with the hook 231 and the bag stripper 51 at the blanking position and in the vertical state in the initial state): firstly, the driving motor 32 is operated to drive the sliding plate 31 to move, so that the hook 231 moves to above the packaging bag 8, the second driving member 232 controls the hook 231 to rotate upwards, the hook 231 rotates to a set angle and then contacts with the trigger switch 54 (in the embodiment, the connecting portion 2312 of the hook 231 contacts with the trigger switch 54 when being parallel to the mounting plate), the trigger switch 54 operates, the bag stripper 51 is pulled out of the clamping groove 520 of the positioning piece, and rotates towards the hook 231 (upwards) and approaches the hook 231 under the action of the torsion spring 53, the second driving member 232 stops operating after the hooking portion 2311 of the hook 231 points to the packaging bag 8, then the first driving member 22 drives the mounting plate 21 to move downwards, so that the hook 231 approaches to the packaging bag 8, then the second driving member 232 controls the hook 231 to rotate downwards, the bag stripper 51 is pushed by the hook 231 to rotate downwards, so that the hooking portion 2311, the bag stripper 51 is located between the connection portion 2312 of the packaging bag 8 and the hook 231, meanwhile, the first driving member 22 drives the mounting plate 21 to move upwards, the hook 231 lifts the packaging bag 8, namely, the first driving member 22 and the second driving member 232 work simultaneously, one side of the hook 231 rotates downwards and moves upwards along the vertical direction, when the hook 231 is located at the vertical position, the bag stripper 51 is just clamped into the clamping groove 520 of the clamping member 521 and keeps still, the driving motor 32 operates to drive the sliding plate 31 to move, the packaging bag 8 is conveyed to the blanking position, and the third driving member 42 drives the blade 41 to cut the notch on the packaging bag 8 for blanking.

Referring to fig. 11 to 14, the bag removal process: when the feeding time is equal to the standard time, the driving motor 32 operates to drive the sliding plate 31 to move to the bag-removing position, the second driving member 232 drives the hook 231 to rotate upwards, the bag-removing device 51 is kept still under the action of the blocking component 52 in the process that the hook 231 is not in contact with the trigger switch 54, the packaging bag 8 is blocked by the bag-removing device 51 to fall off from the hook 231, when the hook 231 rotates to the set angle and is in contact with the trigger switch 54, the trigger switch 54 operates to remove the bag-removing device 51 from the clamping groove 520 of the positioning member, and rotates towards the hook 231 (upwards) under the action of the torsion spring 53 and approaches the hook 231, and simultaneously the driving motor 32 operates to drive the sliding plate 31 to move, so that the hook 231 moves to the upper part of the packaging bag 8, and the operations are repeated to.

In practice, the initial state of the bag opener may be in other forms, for example, the initial state with the hooks 231 and the bag detacher 51 above the bag 8 and in a horizontal state.

Example 1 (description of the operation method described above)

In step S1, the driving motor is set to operate 3.5 (at this time, the hook is unloaded, so the slide plate can move rapidly);

in step S2, the operation time of the second driving member 232 is set to 1S;

in step S3, the first driving member 22 is set to control the mounting plate 21 to move downward for 2S;

in step S4, the second driving element 232 and the first driving element 22 are set to operate simultaneously for 2S;

in step S5, the driving motor 32 is set to operate for 7S (at this time, the hook load prevents the packaging bag 8 from shaking violently during the process of transporting the packaging bag 8 to the feeding position, which results in a small cut made on the packaging bag 8 by the blade and affects the feeding speed, and therefore the moving speed of the sliding plate is relatively slow);

in step S6, the third driving member 42 runs for 1S, and blanking is completed for 10S.

The time for using the bag opening machine to get next bag of materials is 26.5s, and through tests, when manual blanking is adopted under the same conditions (the distance from the packaging bag to the blanking position is the same), 2 persons can open one bag of materials within 30 seconds, and from the viewpoints of economy and efficiency, the bag opening machine can effectively improve the efficiency and save the production cost.

The embodiment of the utility model provides a bag opening machine imitates artifical bag opening through the cooperation between extracting device 2, pay-off subassembly and the cutting assembly 4, colludes through extracting device 2 earlier and gets the wrapping bag 8 that carries the material to lift up wrapping bag 8, then drive extracting device 2 through the pay-off subassembly and move, transport wrapping bag 8 to unloading position, cut open wrapping bag 8 through cutting assembly 4 at last, make the material flow from the incision and realize the unloading. Compare with the bag tearing machine of traditional reel formula and broken formula, the utility model discloses an emptying rate of bag tearing machine unloading back wrapping bag 8 is high, and the unloading process produces the few of dust, and the unloading process material can not thoughtlessly have wrapping bag 8's piece simultaneously, and is totally pollution-free. The working efficiency is high, and the work is reliable and stable.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modification, equivalent replacement or improvement made within the spirit and principle of the present invention should be included in the present invention.

Claims (13)

1. The utility model provides a bag opening machine, includes the frame, its characterized in that still including be used for colluding get the wrapping bag of carrying the material extracting device, be used for driving the extracting device motion will the wrapping bag transports to the pay-off subassembly of unloading position and is used for lacerating and is located the cutting element of wrapping bag on the extracting device, the pay-off subassembly is located in the frame, the cutting element correspondence is located material level department down.

2. The bag opener of claim 1, wherein the feed assembly includes a slide plate slidably coupled to the frame and a drive motor for driving the slide plate relative to the frame.

3. The bag opener of claim 2, wherein the extracting apparatus includes a mounting plate, a first driving member for driving the mounting plate to move in a vertical direction, and a hook assembly provided on the mounting plate for hooking the bag, the first driving member being provided on the sliding plate.

4. The bag opener of claim 3, wherein the hook assembly includes a hook rotatably coupled to the mounting plate and a second drive member for driving the hook to rotate relative to the mounting plate to hook the bag.

5. The bag opener of claim 4, wherein the hook includes a hook portion and a connecting portion, one end of the connecting portion being connected to the hook portion and the other end of the connecting portion being pivotally connected to the mounting plate.

6. The bag opener of claim 5, further comprising a bag removing assembly for removing a cut bag from the hook.

7. The bag opener according to claim 6, wherein the bag removing assembly comprises a bag remover rotatably connected to the mounting plate by a torsion spring, the bag remover being provided with an escape hole for the hook to pass through, and a blocking assembly for keeping the bag remover in an upright position during discharging.

8. The bag opener of claim 7, wherein the bag opener assembly further comprises a trigger switch disposed on the mounting plate for releasing the connection of the bag opener to the detent assembly when the hook is rotated upward to contact the trigger switch to cause the bag opener to rotate upward.

9. The bag opener of claim 8, wherein the detent assembly includes a detent member, a first stop member, a first connector member, and a first mounting block, the first mounting seat is provided with a first mounting cavity for mounting the clamping piece, the first blocking piece and the first connecting piece, a first through hole and a second through hole are respectively arranged at two opposite ends of the first mounting cavity, the first gear part is positioned between the clamping part and the first connecting part, the clamping piece extends out of the first installation cavity through the first through hole, the size of the first blocking piece is larger than the aperture of the first through hole, the clamping piece is provided with a clamping groove used for being matched with the bag-removing device, one end of the first connecting piece, which is far away from the first blocking piece, extends out of the first mounting cavity through a second through hole, and a first elastic part is arranged between the first gear part and the cavity wall where the second through hole is located.

10. The bag opener according to claim 9, wherein the trigger switch includes a triggering member, a second blocking member, a second connecting member, and a second mounting seat, the second mounting seat is provided with a second mounting cavity for mounting the triggering member, the second blocking member, and the second connecting member, opposite ends of the second mounting cavity are respectively provided with a third through hole and a fourth through hole, the second blocking member is located between the triggering member and the second connecting member, the triggering member extends out of the second mounting cavity through the third through hole, the size of the second blocking member is larger than the aperture of the third through hole, one end of the second connecting member, which is far away from the second blocking member, extends out of the second mounting cavity through the fourth through hole, a second elastic member is arranged between the second blocking member and the wall of the fourth through hole, and one end of the second connecting piece extending out of the second mounting cavity is connected with one end of the first connecting piece extending out of the first mounting cavity through a steel wire rope.

11. A bag opener according to any one of claims 4 to 10, wherein the cutting assembly includes a blade and a third drive for driving the blade to slide relative to the bag to cut an opening in a side of the bag.

12. The bag opening machine according to claim 11, wherein the third driving member is an air cylinder or a hydraulic cylinder, the cutting assembly further comprises a first supporting member and a second supporting member, the first supporting member, the second supporting member and the blade are sequentially connected end to end, two ends of the blade are respectively rotatably connected with one end of the first supporting member and one end of the second supporting member, the other end of the first supporting member is provided with a communicating hole, the other end of the second supporting member passes through the communicating hole, one end of the second supporting member passing through the communicating hole is connected with a stopping portion, a third elastic member is sleeved outside the second supporting member, and one end of the first supporting member rotatably connected with the blade is connected with an output shaft of the air cylinder or the hydraulic cylinder.

13. The bag opener of claim 11, further comprising a limit switch that is triggered by the second drive or the slide plate to control operation of the cutting assembly when the bag is at the discharge position.

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