CN113895713A

CN113895713A - Bag opening equipment and packaging machine with same

Info

Publication number: CN113895713A
Application number: CN202111277681.2A
Authority: CN
Inventors: 朱燕昌; 冯东闯; 赵树理; 刘东阳; 王瑞光; 苏笑禄
Original assignee: Gree Electric Appliances Inc of Zhuhai; Zhuhai Gree Intelligent Equipment Co Ltd
Current assignee: Gree Electric Appliances Inc of Zhuhai; Zhuhai Gree Intelligent Equipment Co Ltd
Priority date: 2021-10-29
Filing date: 2021-10-29
Publication date: 2022-01-07

Abstract

The invention provides a bag opening device and a packaging machine with the same. Wherein, open a bag equipment and include: a frame; the attraction mechanism is arranged on the rack and comprises an attraction component, the attraction component comprises two attraction structures which are oppositely arranged, an attraction space is formed between the two attraction structures, and the size of the attraction space is adjustably arranged; the poking mechanism is arranged on the rack and comprises a poking assembly, the poking assembly comprises a poking structure, and the poking structure is rotatably arranged relative to the rack; wherein, after the suction assembly sucks the bag body, at least part of the poking structure extends into the bag body to rotate relative to the bag body so as to poke the bag body. The bag opening mechanism effectively solves the problem that the bag opening efficiency of the bag opening mechanism in the prior art is low.

Description

Bag opening equipment and packaging machine with same

Technical Field

The invention relates to the technical field of bag opening, in particular to bag opening equipment and a packaging machine with the same.

Background

At present, the proportion of plastic packages in the total output value of the packaging industry exceeds 30 percent, the plastic packages play an irreplaceable role in various fields of food, beverage, daily necessities, electrical appliances and industrial and agricultural production, and the manual packaging can not meet the packaging requirement along with the development of the automation industry. In the prior art, a bag opening mechanism is an important component of a packaging machine, and a vacuum chuck is generally used for sucking plastic packages so as to realize bag opening operation.

However, because plastic packaging has the characteristics of softness, light weight, easy influence of static electricity and the like, the phenomenon of bag opening failure exists in the process that a worker uses a vacuum chuck to suck, close and open the plastic packaging, the vacuum chuck is required to suck, close and open the plastic packaging for multiple times, and the production efficiency of a packaging machine is influenced.

Disclosure of Invention

The invention mainly aims to provide bag opening equipment and a packaging machine with the same, and aims to solve the problem that a bag opening mechanism in the prior art is low in bag opening efficiency.

In order to achieve the above object, the present invention provides a bag opening apparatus comprising: a frame; the attraction mechanism is arranged on the rack and comprises an attraction component, the attraction component comprises two attraction structures which are oppositely arranged, an attraction space is formed between the two attraction structures, and the size of the attraction space is adjustably arranged; the poking mechanism is arranged on the rack and comprises a poking assembly, the poking assembly comprises a poking structure, and the poking structure is rotatably arranged relative to the rack; wherein, after the suction assembly sucks the bag body, at least part of the poking structure extends into the bag body to rotate relative to the bag body so as to poke the bag body.

Further, two actuation structures include first actuation structure and second actuation structure, and actuation mechanism still includes: the first driving device is in driving connection with the first absorption structure; the first transmission assembly comprises a first transmission part and a second transmission part which are in transmission connection with each other, the first transmission part is arranged on the first suction structure, and the second transmission part is arranged on the second suction structure; the first driving device drives the first attraction structure to drive the first transmission part to move, so that the first transmission part drives the second transmission part and the second attraction structure to move towards or away from the first attraction structure, and the size of the attraction space is adjusted.

Further, the first driving device is a first driving cylinder, and a piston rod or a cylinder body of the first driving cylinder is connected with the first absorption structure; the extension direction of a piston rod of the first driving cylinder and the movement direction of the first suction structure and/or the second suction structure are/is arranged in parallel.

Further, the first transmission assembly is one; or the first transmission assemblies are arranged at intervals along a preset direction, and a preset included angle is formed between the preset direction and the movement direction of the first suction structure and/or the second suction structure.

Further, first transmission portion is first rack, and second transmission portion is the second rack, and first transmission assembly still includes: the first gear structure is meshed with the first rack and the second rack, and the first rack and the second rack are respectively located on two sides of the first gear structure.

Further, the bag opening apparatus further comprises: the first guide rail assembly comprises a first sliding block and a first guide rail which is slidably arranged on the first sliding block, the first sliding block is arranged on the rack, the first guide rail is connected with the first suction structure, and the first transmission part is arranged on the first guide rail.

Further, the bag opening apparatus further comprises: the second guide rail assembly comprises a second sliding block and a second guide rail which is slidably arranged on the second sliding block, the second sliding block is arranged on the rack, the second guide rail is connected with the second suction structure, and the second transmission part is arranged on the second guide rail.

Further, each actuation structure includes: the connecting piece is connected with the first guide rail or the second guide rail; the vacuum sucker is arranged on the connecting piece in an adjustable position and is used for sucking the bag body.

Further, dial the subassembly and include two relative setting dial the structure, dial the mechanism and still include: a second driving device; the second transmission assembly comprises a connecting structure and two third racks arranged on the connecting structure, and the second driving device is in driving connection with the connecting structure; the two second gear structures are arranged in one-to-one correspondence with the two poking structures, each second gear structure is sleeved on the corresponding poking structure, and the two second gear structures are meshed with the two third racks in one-to-one correspondence; the second driving device drives the second transmission assembly to move, so that each second gear structure drives the corresponding poking structure to rotate, and the bag body is poked.

Further, the second driving device is a second driving cylinder, and the connecting structure includes: the piston rod or the cylinder body of the second driving cylinder is connected with the first mounting plate; first extension arm and the second extension arm of relative setting, first extension arm and second extension arm all set up on first mounting panel, and a third rack sets up on the first surface of first extension arm, and another third rack sets up on the second surface of second extension arm, and first surface and second surface set up relatively.

Further, the poke-out structure comprises: the second gear structure is sleeved on the rotating shaft; the sheet piece is arranged at one end of the rotating shaft so as to pull the bag body open.

Further, the bag opening apparatus further comprises: the supporting structure is arranged on the frame, and the rotating shaft is arranged on the supporting structure in a penetrating mode so as to support the rotating shaft through the supporting structure.

Further, the frame includes second mounting panel and guide arm, and on the guide arm wore to establish the second mounting panel, open a bag equipment still included: the third driving device is in driving connection with the second mounting plate so as to drive the second mounting plate to perform lifting motion along the guide rod; and the third mounting plate is arranged on the guide rod, the third driving device is arranged on the third mounting plate, and the third mounting plate is positioned below the second mounting plate.

By applying the technical scheme of the invention, the bag opening equipment comprises an attraction mechanism and a poking-out mechanism, wherein the two attraction structures of the attraction mechanism are used for attracting the bag body, and after the attraction component attracts the bag body, at least part of the poking-out structure of the poking-out mechanism extends into the bag body and rotates relative to the bag body, so that the bag body is poked out. Like this, only adopt vacuum chuck to the bag body suction to close and open the bag and compare among the prior art, the bag equipment of opening in this application carries out the actuation to the bag body earlier, even use actuation mechanism to open the bag in advance to the bag body, reuse is dialled and is opened the structure and dial the bag body and open to make the bag body open completely and satisfy the packing demand, and then solved the problem that the bag efficiency is lower of opening of the bag mechanism among the prior art, promoted the bag success rate of opening of the bag equipment, promoted the packing efficiency of baling press.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 shows a schematic perspective view of an embodiment of a bag opener according to the invention;

FIG. 2 shows a top view of the engagement mechanism of the bag opening apparatus of FIG. 1;

FIG. 3 shows a front view of the engagement mechanism of FIG. 2;

fig. 4 shows a schematic perspective view of the opening mechanism of the bag opening device of fig. 1; and

fig. 5 shows an enlarged schematic view at a of the opening mechanism in fig. 4.

Wherein the figures include the following reference numerals:

10. a frame; 11. a second mounting plate; 12. a guide bar; 20. a suction assembly; 21. a suction structure; 211. a connecting member; 212. a vacuum chuck; 22. a suction space; 23. a first absorbing structure; 24. a second suction structure; 30. pulling the assembly open; 31. a poke-open structure; 311. a rotating shaft; 312. a sheet member; 40. a first driving device; 50. a first transmission assembly; 51. a first transmission unit; 52. a second transmission part; 53. a first gear structure; 60. a first rail assembly; 61. a first slider; 62. a first guide rail; 70. a second rail assembly; 71. a second slider; 72. a second guide rail; 80. a second driving device; 90. a second transmission assembly; 91. a connecting structure; 911. a first mounting plate; 912. a first extension arm; 913. a second extension arm; 92. a third rack; 100. a second gear structure; 110. a support structure; 120. a third driving device; 130. and a third mounting plate.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

It is noted that, unless otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

In the present invention, unless stated to the contrary, use of the directional terms "upper and lower" are generally directed to the orientation shown in the drawings, or to the vertical, or gravitational direction; likewise, for ease of understanding and description, "left and right" are generally to the left and right as shown in the drawings; "inner and outer" refer to the inner and outer relative to the profile of the respective member itself, but the above directional terms are not intended to limit the present invention.

In order to solve the problem that the bag opening efficiency of a bag opening mechanism is lower in the prior art, the application provides a bag opening device and a packaging machine with the same.

As shown in fig. 1 to 5, the bag opening device includes a frame 10, a suction mechanism and a pull-out mechanism. The attraction mechanism is arranged on the frame 10 and comprises an attraction assembly 20, the attraction assembly 20 comprises two attraction structures 21 which are oppositely arranged, an attraction space 22 is formed between the two attraction structures 21, and the size of the attraction space 22 can be adjusted. The opening mechanism is arranged on the frame 10, the opening mechanism comprises an opening component 30, the opening component 30 comprises an opening structure 31, and the opening structure 31 is rotatably arranged relative to the frame 10. Wherein, after the bag body is sucked by the suction component 20, at least part of the poking structure 31 extends into the bag body to rotate relative to the bag body so as to poke the bag body.

With the technical scheme of this embodiment, the bag opening device comprises the suction mechanism and the pull-out mechanism, two suction structures of the suction mechanism are used for sucking the bag body, and after the suction component 20 sucks the bag body, at least part of the pull-out structure 31 of the pull-out mechanism extends into the bag body and rotates relative to the bag body, so as to pull out the bag body. Like this, only adopt vacuum chuck to open the bag to the bag body suction among the prior art and compare, the equipment of opening the bag in this embodiment carries out the actuation to the bag body earlier, even use actuation mechanism to open the bag in advance to the bag body, reuse is dialled and is opened structure 31 and dial the bag body and open to make the bag body open completely and satisfy the packing demand, and then solved the lower problem of the efficiency of opening the bag of the mechanism of opening the bag in the prior art, promoted the success rate of opening the bag of the equipment of opening the bag, promoted the packing efficiency of baling press.

As shown in fig. 1 and 2, the two engaging structures 21 include a first engaging structure 23 and a second engaging structure 24, and the engaging mechanism further includes a first driving device 40 and a first transmission assembly 50. The first driving device 40 is in driving connection with the first suction structure 23. The first transmission assembly 50 includes a first transmission part 51 and a second transmission part 52 that are connected with each other in a transmission manner, the first transmission part 51 is disposed on the first suction structure 23, and the second transmission part 52 is disposed on the second suction structure 24. The first driving device 40 drives the first suction structure 23 to drive the first transmission part 51 to move, so that the first transmission part 51 drives the second transmission part 52 and the second suction structure 24 to move towards or away from the first suction structure 23, thereby adjusting the size of the suction space 22. Therefore, the first suction structure 23 and the second suction structure 24 are driven to move by the first driving device 40, so that the number of the driving devices is reduced, the processing cost of the bag opening equipment is reduced, and the bag opening equipment can be controlled by workers conveniently. Meanwhile, the arrangement improves the motion stability of the first suction structure 23 and the second suction structure 24, avoids vibration and noise generated in the operation process of the bag opening device, and improves the use experience of users.

Specifically, the first transmission part 51 is arranged on the first suction structure 23, the second transmission part 52 is arranged on the second suction structure 24, the first transmission part 51 is in transmission connection with the second transmission part 52, after the first driving device 40 is started, the first driving device 40 drives the first suction structure 23 to move, the first suction structure 23 drives the first transmission part 51 to move synchronously, the second transmission part 52 in transmission connection with the first transmission part 51 is driven to move through the first transmission part 51, the second suction structure 24 is driven to move towards or away from the first suction structure 23 through the second transmission part 52, and then the size of the suction space is adjusted, so that the suction mechanism sucks the bag body.

In this embodiment, the first suction structure 23 and the second suction structure 24 move in opposite directions to ensure that the first suction structure 23 and the second suction structure 24 can suck the pouches synchronously.

Optionally, the first driving device 40 is a first driving cylinder, and a piston rod or a cylinder body of the first driving cylinder is connected with the first suction structure 23. Thus, the arrangement makes the structure of the first driving device 40 simpler, and the first driving device is easy to process and realize, and reduces the processing cost of the first driving device 40. Simultaneously, above-mentioned setting makes the connected mode of first actuating cylinder and first adsorption structure 23 more diversified to satisfy different user demand and operating mode, also promoted staff's processing flexibility.

Optionally, the extension direction of the piston rod of the first driving cylinder and the movement direction of the first attraction structure 23 and/or the second attraction structure 24 are arranged parallel to each other. Thus, the arrangement ensures that the first driving cylinder drives the first suction structure 23 and the second suction structure 24 to move along the extending direction of the piston rod, and improves the motion stability of the suction assembly 20.

Optionally, there is one first transmission assembly 50; or, the number of the first transmission assemblies 50 is multiple, the multiple first transmission assemblies 50 are arranged at intervals along a preset direction, and a preset included angle is formed between the preset direction and the movement direction of the first attraction structure 23 and/or the second attraction structure 24. Like this, above-mentioned setting makes the number of first drive assembly 50 select more in a flexible way to satisfy different user demand and operating mode, also promoted staff's processing flexibility.

Optionally, the preset included angle is 90 °.

In this embodiment, the number of the first transmission assemblies 50 is two, and the two first transmission assemblies 50 are respectively located at two sides of the first driving device 40, so that the connection area between the first transmission assemblies 50 and the attraction assembly 20 is increased, the stability of the internal structure of the bag opening device is improved, and the bag opening efficiency of the bag opening device is improved.

As shown in fig. 1 and 2, the first transmission part 51 is a first rack, the second transmission part 52 is a second rack, and the first transmission assembly 50 further includes a first gear structure 53. The first gear structure 53 is engaged with the first rack and the second rack, and the first rack and the second rack are respectively located at two sides of the first gear structure 53. Thus, the arrangement makes the structures of the first transmission part 51 and the second transmission part 52 simpler, and the first transmission part and the second transmission part are easy to process and realize, so that the processing cost of the first transmission assembly 50 is reduced. Meanwhile, the arrangement ensures that the moving directions of the first rack and the second rack are opposite, and further ensures that the moving directions of the first suction structure 23 and the second suction structure 24 are opposite.

In this embodiment, the extending direction of the first rack and the moving direction of the first and/or

second suction structures

23 and 24 are disposed in parallel with each other. The extending direction of the second rack and the moving direction of the first suction structure 23 and/or the second suction structure 24 are parallel to each other.

As shown in fig. 1 and 2, the bag opener further comprises a first rail assembly 60. The first guide rail assembly 60 includes a first slider 61 and a first guide rail 62 slidably disposed on the first slider 61, the first slider 61 is disposed on the frame 10, the first guide rail 62 is connected to the first suction structure 23, and the first transmission unit 51 is disposed on the first guide rail 62. Therefore, in the process that the first suction structure 23 moves towards or away from the second suction structure 24, the arrangement of the first guide rail assembly 60 ensures that the first suction structure 23 moves along the preset direction, and the movement reliability and the stability of the first suction structure 23 are improved. Wherein the extending direction of the first guide rail 62 and the preset direction are parallel to each other.

Optionally, there is one first slider 61; or, first slider 61 is a plurality of, and a plurality of first sliders 61 set up along the extending direction interval of first guide rail 62, and then has increased the area of contact of first slider 61 with first guide rail 62, has promoted the motion stationarity of first guide rail 62.

As shown in fig. 1 and 2, the bag opener further comprises a second rail assembly 70. The second guide rail assembly 70 includes a second slider 71 and a second guide rail 72 slidably disposed on the second slider 71, the second slider 71 is disposed on the frame 10, the second guide rail 72 is connected to the second suction structure 24, and the second transmission portion 52 is disposed on the second guide rail 72. Thus, in the process that the second suction structure 24 moves towards or away from the first suction structure 23, the second guide rail assembly 70 ensures that the second suction structure 24 moves along the preset direction, and the movement reliability and stability of the second suction structure 24 are improved. Wherein the extending direction of the second guide rail 72 and the preset direction are parallel to each other.

Optionally, there is one second slider 71; or, the second sliding blocks 71 are multiple, and the multiple second sliding blocks 71 are arranged at intervals along the extending direction of the second guide rail 72, so that the contact area between the second sliding blocks 71 and the second guide rail 72 is increased, and the movement stability of the second guide rail 72 is improved.

As shown in FIG. 2, each of the engaging structures 21 includes a connecting member 211 and a vacuum chuck 212. Wherein the connection member 211 is connected with the first guide rail 62 or the second guide rail 72. The vacuum chuck 212 is adjustably positioned on the connecting member 211 for attracting the bag body. Therefore, the structure of the suction structure 21 is simpler, the suction structure is easy to process and realize, and the processing cost of the suction structure 21 is reduced. Meanwhile, the above arrangement enables the attracting position of each attracting structure 21 to be adjustably arranged so as to meet different use requirements and working conditions.

In this embodiment, the vacuum suction cups 212 of the first suction structure 23 and the vacuum suction cups 212 of the second suction structure 24 are staggered, so as to increase the suction area between the suction assembly 20 and the bag body, and improve the suction efficiency of the suction mechanism to the bag body.

As shown in fig. 1 and 4, the opening assembly 30 includes two opening structures 31 disposed opposite to each other, and the opening mechanism further includes a second driving device 80, a second transmission assembly 90, and two second gear structures 100. The second transmission assembly 90 includes a connecting structure 91 and two third racks 92 disposed on the connecting structure 91, and the second driving device 80 is drivingly connected to the connecting structure 91. The two second gear structures 100 are disposed in one-to-one correspondence with the two opening structures 31, each second gear structure 100 is sleeved on the corresponding opening structure 31, and the two second gear structures 100 are engaged with the two third racks 92 in one-to-one correspondence. The second driving device 80 drives the second transmission assembly 90 to move, so that each second gear structure 100 drives the corresponding opening structure 31 to rotate, thereby opening the bag body. Therefore, the two poking structures 31 are driven to move by the second driving device 80, so that the number of the driving devices is reduced, the processing cost of the bag opening equipment is reduced, and the bag opening equipment can be controlled by workers conveniently. Meanwhile, the arrangement improves the motion stability of the two poking structures 31, vibration and noise generated in the operation process of the bag opening device are avoided, and the use experience of a user is improved.

Specifically, the two third racks 92 are meshed with the two second gear structures 100 in a one-to-one correspondence manner, so that one second driving device 80 can drive the two second gear structures 100 to rotate, and the rotation directions of the two second gear structures 100 are opposite, so as to ensure that the rotation (toggle) directions of the two toggle-out structures 31 are opposite.

As shown in fig. 5, the second driving device 80 is a second driving cylinder, and the connecting structure 91 includes a first mounting plate 911 and a first extension arm 912 and a second extension arm 913 disposed opposite to each other. Wherein the piston rod or cylinder body of the second driving cylinder is connected with the first mounting plate 911. The first extension arm 912 and the second extension arm 913 are both disposed on the first mounting plate 911, and one third rack 92 is disposed on a first surface of the first extension arm 912 and the other third rack 92 is disposed on a second surface of the second extension arm 913, the first surface and the second surface being disposed opposite to each other. Thus, the above arrangement further ensures that the rotation (toggling) directions of the two toggling mechanisms 31 are opposite to each other to toggle the bag body completing the pre-opened bag. Meanwhile, the connecting structure 91 is simpler in structure, easy to machine and realize, and the machining cost of the second transmission assembly 90 is reduced.

As shown in fig. 4, the opening mechanism 31 includes a rotating shaft 311 and a sheet member 312. Wherein, the second gear structure 100 is sleeved on the rotating shaft 311. The sheet member 312 is disposed on one end of the rotating shaft 311 to pull the bag body open. Thus, the structure of the poking structure 31 is simpler, the poking structure is easy to process and realize, and the processing cost of the poking structure 31 is reduced.

As shown in fig. 1 and 4, the bag opener further comprises a support structure 110. The supporting structure 110 is disposed on the frame 10, and the rotating shaft 311 penetrates through the supporting structure 110 to support the rotating shaft 311 through the supporting structure 110. In this way, the opening structure 31 is supported by the supporting structure 110 to ensure that the opening structure 31 can rotate, thereby improving the opening reliability of the opening structure 31 to the bag body.

Specifically, the supporting structure 110 includes a mounting seat and a bearing disposed on the mounting seat, and the rotating shaft 311 is disposed through the bearing.

As shown in fig. 1, 3 and 4, the frame 10 includes a second mounting plate 11 and a guide rod 12, the guide rod 12 is disposed on the second mounting plate 11, and the bag opening apparatus further includes a third driving device 120 and a third mounting plate 130. The third driving device 120 is in driving connection with the second mounting plate 11 to drive the second mounting plate 11 to perform lifting movement along the guide rod 12. The third mounting plate 130 is disposed on the guide bar 12, the third driving means 120 is disposed on the third mounting plate 130, and the third mounting plate 130 is located below the second mounting plate 11. Therefore, the third driving device 120 can drive the second mounting plate 11 to move up and down along the guide rod 12, and further adjust the height positions of the suction mechanism and the poking-out mechanism, so as to meet different use requirements and working conditions.

Alternatively, the third driving device 120 is a driving cylinder, and a piston rod or a cylinder body of the driving cylinder is connected with the third mounting plate 130.

Specifically, the working principle of the bag opening device is as follows:

when the first driving device 40 is started, the first driving device 40 drives the first suction structure 23 to move, and then the first suction structure 23 drives the first transmission part 51 to move synchronously, and the first transmission part 51 drives the second transmission part 52 in transmission connection with the first transmission part to move, so that the second suction structure 24 is driven by the second transmission part 52 to move towards the first suction structure 23. The vacuum chuck 212 attracts the bag body (plastic package) and moves outward to pull the bag body (plastic package) open. After the above actions are completed, the second driving device 80 is started, and the second driving device 80 drives the connecting structure 91 to perform telescopic motion, so that each opening structure 31 rotates and opens the bag opening, thereby completing the bag opening action.

From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects:

the bag opening equipment comprises an actuation mechanism and a poking-opening mechanism, wherein the two actuation structures of the actuation mechanism are used for actuating the bag body, and after the actuation assembly actuates the bag body, at least part of the poking-opening structure of the poking-opening mechanism extends into the bag body and rotates relative to the bag body, so that the bag body is poked. Like this, only adopt vacuum chuck to the bag body suction to close and open the bag and compare among the prior art, the bag equipment of opening in this application carries out the actuation to the bag body earlier, even use actuation mechanism to open the bag in advance to the bag body, reuse is dialled and is opened the structure and dial the bag body and open to make the bag body open completely and satisfy the packing demand, and then solved the problem that the bag efficiency is lower of opening of the bag mechanism among the prior art, promoted the bag success rate of opening of the bag equipment, promoted the packing efficiency of baling press.

It is to be understood that the above-described embodiments are only a few, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise, and it should be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A bag opening apparatus, comprising:

a frame (10);

the attraction mechanism is arranged on the rack (10) and comprises an attraction component (20), the attraction component (20) comprises two attraction structures (21) which are oppositely arranged, an attraction space (22) is formed between the two attraction structures (21), and the size of the attraction space (22) is adjustable;

the poking mechanism is arranged on the rack (10) and comprises a poking component (30), the poking component (30) comprises a poking structure (31), and the poking structure (31) is rotatably arranged relative to the rack (10);

after the suction assembly (20) sucks the bag body, at least part of the poking structure (31) extends into the bag body to rotate relative to the bag body, so that the bag body is poked.

2. The bag opening apparatus according to claim 1, wherein the two attracting structures (21) comprise a first attracting structure (23) and a second attracting structure (24), and the attracting mechanism further comprises:

a first driving device (40) which is in driving connection with the first suction structure (23);

the first transmission assembly (50) comprises a first transmission part (51) and a second transmission part (52) which are in transmission connection with each other, the first transmission part (51) is arranged on the first suction structure (23), and the second transmission part (52) is arranged on the second suction structure (24);

the first driving device (40) drives the first suction structure (23) to drive the first transmission part (51) to move, so that the first transmission part (51) drives the second transmission part (52) and the second suction structure (24) to move towards or away from the first suction structure (23), and further the size of the suction space (22) is adjusted.

3. The bag opening apparatus according to claim 2, wherein the first driving device (40) is a first driving cylinder, a piston rod or a cylinder body of which is connected with the first suction structure (23); the extension direction of a piston rod of the first driving cylinder and the movement direction of the first suction structure (23) and/or the second suction structure (24) are arranged in parallel.

4. The bag opening apparatus according to claim 2, wherein the first transmission assembly (50) is one; or, the first transmission assemblies (50) are multiple, the first transmission assemblies (50) are arranged at intervals along a preset direction, and a preset included angle is formed between the preset direction and the movement direction of the first suction structure (23) and/or the second suction structure (24).

5. The bag opening apparatus according to claim 2, wherein the first transmission part (51) is a first rack and the second transmission part (52) is a second rack, the first transmission assembly (50) further comprising:

a first gear structure (53) meshing with both the first and second racks, the first and second racks being located on either side of the first gear structure (53).

6. The bag opening apparatus according to claim 2, further comprising:

the first guide rail assembly (60) comprises a first sliding block (61) and a first guide rail (62) which is slidably arranged on the first sliding block (61), the first sliding block (61) is arranged on the machine frame (10), the first guide rail (62) is connected with the first suction structure (23), and the first transmission part (51) is arranged on the first guide rail (62).

7. The bag opening apparatus according to claim 6, further comprising:

the second guide rail assembly (70) comprises a second sliding block (71) and a second guide rail (72) which is slidably arranged on the second sliding block (71), the second sliding block (71) is arranged on the rack (10), the second guide rail (72) is connected with the second suction structure (24), and the second transmission part (52) is arranged on the second guide rail (72).

8. The bag opening apparatus according to claim 7, wherein each of the engaging structures (21) comprises:

a connector (211) connected to the first rail (62) or the second rail (72);

the vacuum suction cup (212) is arranged on the connecting piece (211) in a position-adjustable mode and used for attracting the bag body.

9. The bag opening apparatus according to claim 1, wherein the opening assembly (30) comprises two oppositely disposed opening structures (31), the opening mechanism further comprising:

a second drive device (80);

the second transmission assembly (90) comprises a connecting structure (91) and two third racks (92) arranged on the connecting structure (91), and the second driving device (80) is in driving connection with the connecting structure (91);

the two second gear structures (100) are arranged in one-to-one correspondence with the two poke-out structures (31), each second gear structure (100) is sleeved on the corresponding poke-out structure (31), and the two second gear structures (100) are meshed with the two third racks (92) in one-to-one correspondence;

the second driving device (80) drives the second transmission assembly (90) to move, so that each second gear structure (100) drives the corresponding poking-open structure (31) to rotate, and the bag body is poked open.

10. The bag opening apparatus according to claim 9, wherein the second driving device (80) is a second driving cylinder, and the connecting structure (91) comprises:

the piston rod or the cylinder body of the second driving cylinder is connected with the first mounting plate (911);

the first extension arm (912) and the second extension arm (913) that set up relatively, first extension arm (912) and second extension arm (913) all set up on first mounting panel (911), one third rack (92) set up on the first surface of first extension arm (912), another third rack (92) set up on the second surface of second extension arm (913), the first surface with the second surface sets up relatively.

11. The bag opening apparatus according to claim 9, wherein the opening structure (31) comprises:

the rotating shaft (311), the second gear structure (100) is sleeved on the rotating shaft (311);

a sheet member (312), the sheet member (312) being disposed on one end of the rotating shaft (311) to pull out the bag body.

12. The bag opening apparatus according to claim 11, further comprising:

the supporting structure (110) is arranged on the rack (10), and the rotating shaft (311) penetrates through the supporting structure (110) so as to support the rotating shaft (311) through the supporting structure (110).

13. The bag opening apparatus according to claim 1, wherein the frame (10) comprises a second mounting plate (11) and a guide rod (12), the guide rod (12) is arranged on the second mounting plate (11) in a penetrating manner, and the bag opening apparatus further comprises:

the third driving device (120) is in driving connection with the second mounting plate (11) so as to drive the second mounting plate (11) to perform lifting motion along the guide rod (12);

and the third mounting plate (130) is arranged on the guide rod (12), the third driving device (120) is arranged on the third mounting plate (130), and the third mounting plate (130) is positioned below the second mounting plate (11).

14. A baler characterized in that it comprises a bag opener according to any one of claims 1 to 13.