Automatic bag cutting device

Abstract

The application discloses an automatic bag cutting device, comprising: a conveying mechanism for conveying a woven bag filled with products; a first cutting mechanism arranged at a first cutting station, comprising a first driving assembly, a second driving assembly, a first grabbing structure and two groups of first cutting assemblies arranged side by side and spaced apart along the Y direction, the first cutting assembly comprising a first guide rod extending along the X direction and a first cutter arranged above the first guide rod, and a sharp part being arranged on the first guide rod; and a second cutting mechanism arranged at a second cutting station, comprising a third driving assembly, a fourth driving assembly, a second grabbing structure and two groups of second cutting assemblies arranged side by side and spaced apart along the X direction, the second cutting assembly comprising a second guide rod extending along the Y direction and a second cutter arranged above the second guide rod. In use, a larger opening can be cut at the top region of the woven bag filled with products to facilitate the taking out of the products in the woven bag, and meanwhile, the cutting component can be prevented from contacting the products in the woven bag.

Description

Technical Field

[0001] This application relates to the field of automatic woven bag cutting technology, and in particular to an automatic bag cutting device. Background Technology

[0002] Woven bags, also known as snakeskin bags, are widely used in logistics, warehousing, industry, and agriculture due to their lightweight, durability, and low cost. Currently, the methods for opening woven bags containing products are typically quite primitive, relying mainly on manual labor using a hand knife or scissors to break the seal. However, this method is not only inefficient but also carries the risk of injury due to operational errors.

[0003] To address this, related technologies have proposed automatic bag-cutting devices that open woven bags by cutting. However, traditional automatic bag-cutting devices simply cut a slit in the woven bag. When the woven bag contains large products such as yarn packages (including yarn spools and the yarn wound around them), it is inconvenient to remove the products from the bag. Furthermore, during the cutting process, the cutting components of traditional automatic bag-cutting devices often come into contact with the products inside the woven bag. This is not a problem when the bag contains powder or other products that do not require protection, but when the bag contains yarn packages or other products that require protection, the cutting components can easily damage the products inside the woven bag. Summary of the Invention

[0004] This application aims to address at least one of the technical problems existing in the prior art. To this end, this application proposes an automatic bag cutting device that can cut a large opening in a woven bag containing products to facilitate the removal of the products from the woven bag, while avoiding contact between the cutting parts and the products inside the woven bag, thereby preventing damage to the products inside the woven bag by the cutting parts.

[0005] An automatic bag-cutting device according to an embodiment of this application has a first cutting station and a second cutting station distributed along the X direction. The automatic bag-cutting device includes: a conveying mechanism for conveying woven bags containing products along the X direction, the conveying path of which passes through the first cutting station and the second cutting station; a first cutting mechanism disposed at the first cutting station, the first cutting mechanism including a first driving assembly, a second driving assembly, a first gripping structure, and two sets of first cutting assemblies arranged side-by-side and spaced apart along the Y direction. Each first cutting assembly includes a first guide rod extending along the X direction and a first cutter disposed above the first guide rod for cutting the woven bag along the X direction. The first guide rod has a sharp portion for piercing the woven bag along the X direction. The first driving assembly... The first cutting mechanism is configured to drive two sets of the first cutting components to move along the X direction. The first gripping structure is used to grip the top area of ​​the woven bag. The second driving component is configured to drive the first gripping structure to move up and down. The second cutting mechanism is configured to drive two sets of the first cutting components to move along the X direction. The second cutting mechanism includes a third driving component, a fourth driving component, a second gripping structure, and two sets of second cutting components arranged side by side and spaced apart along the X direction. The second cutting component includes a second guide rod extending along the Y direction and a second cutter disposed above the second guide rod and used to cut the woven bag along the Y direction. The third driving component is configured to drive two sets of the second cutting components to move along the Y direction. The second gripping structure is used to grip the top area of ​​the woven bag. The fourth driving component is configured to drive the second gripping structure to move up and down.

[0006] The automatic bag-cutting device according to the embodiments of this application has at least the following beneficial effects: In use, a woven bag containing products to be processed is conveyed to the first cutting station by a conveying mechanism. At this time, the conveying of the woven bag is stopped. Then, the first gripping structure is driven to descend and grip the top area of ​​the woven bag by the second driving component. Then, the gripping state of the first gripping structure is maintained and the first gripping structure is driven to rise by the second driving component to lift the top area of ​​the woven bag. Then, the two sets of first cutting components are driven to move along the X direction by the first driving component. During this process, the sharp parts provided on the two first guide rods can pierce one side of the top area of ​​the woven bag that is lifted, so that the two first guide rods can extend into the woven bag and support the top area of ​​the woven bag. After the two first guide rods extend into the woven bag and support the top area of ​​the woven bag, the gripping state of the first gripping structure is released. As the two sets of first cutting components continue to move along the X direction, the two first cutters cut two parallel and spaced cuts extending along the X direction in the top area of ​​the woven bag. Then, the first cutting mechanism... The first stage of processing is completed by resetting to the initial position. The woven bag, having completed the first stage of processing, is then conveyed to the second cutting station via a conveying mechanism. At this point, the conveying of the woven bag stops, and the second gripping structure is driven to descend and grip the top area of ​​the woven bag via the fourth drive assembly. The gripping state of the second gripping structure is maintained, and the second gripping structure is driven to rise via the fourth drive assembly to lift the top area of ​​the woven bag. Subsequently, the two sets of second cutting components are driven to move along the Y direction via the third drive assembly. Since the top area of ​​the woven bag is now in a lifted state, the two second guide rods can extend into the woven bag through one of the cuts extending along the X direction and support the top area of ​​the woven bag. After the two second guide rods extend into the woven bag and support the top area of ​​the woven bag, the gripping state of the second gripping structure is released. As the two sets of second cutting components continue to move along the Y direction, the two second cutters cut two parallel and spaced cuts extending along the Y direction in the top area of ​​the woven bag. The second cutting mechanism then resets to the initial position and completes the second stage of processing. By machining two slits extending in the X direction and two slits extending in the Y direction in the top region of the woven bag, a rectangular area enclosed by the two slits is removed, thereby creating a larger rectangular opening in the top region of the woven bag for removing the product inside. Furthermore, during the cutting of the two slits extending in the X and Y directions, the first guide rod blocks the first cutter from contact with the product inside the woven bag, thus preventing damage to the product.

[0007] According to some embodiments of this application, both the first cutter and the second cutter are rotary cutters driven by a motor. The top of the first guide rod is provided with a first clearance groove, and the bottom of the first cutter extends into the first clearance groove. The top of the second guide rod is provided with a second clearance groove, and the bottom of the second cutter extends into the second clearance groove.

[0008] According to some embodiments of this application, the sharp part is movably disposed on the first guide rod, and the first driving assembly is provided with a first linear driving structure, which is connected to the sharp part and is used to drive the sharp part to move along the X direction.

[0009] According to some embodiments of this application, the conveying mechanism includes a first conveyor, a second conveyor, and a third conveyor connected sequentially along the X direction. The second conveyor is located at the first cutting station, and the third conveyor is located at the second cutting station. Liftable baffle components are provided between the feeding end of the second conveyor and the discharging end of the first conveyor, and between the feeding end of the third conveyor and the discharging end of the second conveyor.

[0010] According to some embodiments of this application, the first driving component includes a first support, a first linear module and a first crossbeam. The first support is disposed at the first cutting station. The first linear module extends along the X direction and is disposed on the first support. The first crossbeam extends along the Y direction and is disposed on the first linear module. Two sets of the first cutting components are disposed on the first crossbeam. The first linear module is used to drive the first crossbeam to move along the X direction.

[0011] The third drive assembly includes a second bracket, a second linear module, and a second crossbeam. The second bracket is disposed at the second cutting station. The second linear module extends along the Y direction and is disposed on the second bracket. The second crossbeam extends along the X direction and is disposed on the second linear module. Two sets of the second cutting assemblies are disposed on the second crossbeam. The second linear module is used to drive the second crossbeam to move along the Y direction.

[0012] According to some embodiments of this application, the third driving component further includes a third linear module and a fourth linear module. The third linear module extends along the X direction and is disposed between one group of the second cutting components and the second crossbeam. The fourth linear module extends along the X direction and is disposed between another group of the second cutting components and the second crossbeam. Both the third linear module and the fourth linear module are used to drive the corresponding second cutting components to move along the X direction.

[0013] According to some embodiments of this application, the first drive assembly further includes a third bracket disposed between the first cutting assembly and the first crossbeam and a second linear drive structure. Two sets of the first cutting assemblies are disposed on the third bracket, and the second linear drive structure is disposed on the first crossbeam and connected to the third bracket. The second linear drive structure is used to drive the third bracket to rise and fall.

[0014] According to some embodiments of this application, the second drive assembly includes a fourth bracket and a third linear drive structure. The fourth bracket is disposed on the conveying mechanism and located at the first cutting station. The third linear drive structure is disposed on the fourth bracket and is used to drive the first gripping structure to lift and lower.

[0015] The fourth drive assembly includes a fifth bracket and a fourth linear drive structure. The fifth bracket is mounted on the conveying mechanism and located at the second cutting station. The fourth linear drive structure is mounted on the fifth bracket and is used to drive the second gripping structure to lift and lower.

[0016] According to some embodiments of this application, the second driving component further includes a fifth linear driving structure, which is disposed between the first gripping structure and the third linear driving structure, and is used to drive the first gripping structure to move along the Y direction; and / or

[0017] The fourth drive component further includes a sixth linear drive structure, which is disposed between the fourth linear drive structure and the fifth bracket. The sixth linear drive structure is used to drive the second gripping structure to move along the Y direction.

[0018] According to some embodiments of this application, the first gripping structure includes a first duct for adsorbing the top area of ​​the woven bag, the first duct being connected to an external negative pressure generating device.

[0019] The second gripping structure includes a second duct for adsorbing the top area of ​​the woven bag, the second duct being connected to an external negative pressure generating device.

[0020] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0021] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0022] Figure 1This is a schematic diagram of the structure of an automatic bag-cutting device according to an embodiment of this application;

[0023] Figure 2 yes Figure 1 Enlarged view of a portion of point A in the middle;

[0024] Figure 3 yes Figure 2 Enlarged view of a portion of point B in the middle;

[0025] Figure 4 This is a schematic diagram of the automatic bag-cutting device according to an embodiment of this application from another perspective;

[0026] Figure 5 yes Figure 4 Enlarged view of a portion of point C in the middle;

[0027] Figure 6 This is a schematic diagram of the structure of a material blocking assembly according to an embodiment of this application;

[0028] Figure 7 This is a schematic diagram of the structure of the first gripping structure and the second driving component according to an embodiment of this application;

[0029] Figure 8 This is a schematic diagram of the second gripping structure and the fourth driving component according to an embodiment of this application.

[0030] Figure label:

[0031] Woven bag a, conveying mechanism 100, first conveyor 110, second conveyor 120, third conveyor 130, first cutting mechanism 200, first guide rod 211, first clearance groove 2111, first cutter 212, first bracket 221, first linear module 222, first crossbeam 223, third bracket 224, second linear drive structure 225, fourth bracket 231, third linear drive structure 232, fifth linear drive structure 233, first air duct 24 0. Second cutting mechanism 300, second guide rod 311, second clearance groove 3111, second cutter 312, second bracket 321, second linear module 322, second crossbeam 323, third linear module 324, fourth linear module 325, fifth bracket 331, fourth linear drive structure 332, sixth linear drive structure 333, second air duct 340, material blocking assembly 400, mounting bracket 410, lifting cylinder 420, blocking component 430, support plate 431. Detailed Implementation

[0032] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0033] In the description of this application, it should be understood that if directional descriptions are involved, such as up, down, front, back, left, right, etc., indicating the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings, it is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0034] In the description of this application, if words such as several, greater than, less than, exceeding, above, below, or within appear, "several" means one or more, "more than" means two or more, "greater than," "less than," "exceeding," etc. are understood to exclude the number itself, and "above," "below," "within," etc. are understood to include the number itself.

[0035] In the description of this application, the use of terms such as "first" and "second" is for the purpose of distinguishing technical features only, and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or the order of the technical features indicated.

[0036] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.

[0037] Reference Figures 1 to 8 The automatic bag cutting device according to the embodiments of this application has a first cutting station and a second cutting station distributed along the X direction, wherein the automatic bag cutting device according to the embodiments of this application includes a conveying mechanism 100, a first cutting mechanism 200 and a second cutting mechanism 300.

[0038] Specifically, the conveying mechanism 100 is used to convey woven bags a containing products along the X direction. The conveying path of the conveying mechanism 100 passes through a first cutting station and a second cutting station. The first cutting mechanism 200 is disposed at the first cutting station. The first cutting mechanism 200 includes a first driving assembly, a second driving assembly, a first gripping structure, and two sets of first cutting assemblies arranged side by side and spaced apart along the Y direction. The first cutting assembly includes a first guide rod 211 extending along the X direction and a first cutter 212 disposed above the first guide rod 211 and used to cut the woven bag a along the X direction. The first guide rod 211 is provided with a sharp part (not shown in the figure) for piercing the woven bag a along the X direction. The first driving assembly can drive the two sets of first cutting assemblies. Moving along the X direction, the first gripping structure is used to grip the top area of ​​the woven bag a. The second driving component can drive the first gripping structure to rise and fall. The second cutting mechanism 300 is set at the second cutting station. The second cutting mechanism 300 includes a third driving component, a fourth driving component, a second gripping structure, and two sets of second cutting components arranged side by side and spaced apart along the X direction. The second cutting component includes a second guide rod 311 extending along the Y direction and a second cutter 312 set above the second guide rod 311 and used to cut the woven bag a along the Y direction. The third driving component can drive the two sets of second cutting components to move along the Y direction. The second gripping structure is used to grip the top area of ​​the woven bag a. The fourth driving component can drive the second gripping structure to rise and fall.

[0039] In use, the conveying mechanism 100 transports the woven bag a containing the product to the first cutting station. At this point, the conveying of the woven bag a stops. Then, the second drive assembly drives the first gripping structure to descend and grip the top area of ​​the woven bag a. The gripping state of the first gripping structure is maintained, and the second drive assembly drives the first gripping structure to rise, lifting the top area of ​​the woven bag a. Subsequently, the first drive assembly drives the two sets of first cutting components to move along the X direction. During this process, the sharp points provided on the two first guide rods 211 can... One side of the top area of ​​the woven bag a is lifted by piercing it, so that the two first guide rods 211 can extend into the woven bag a and support the top area of ​​the woven bag a. After the two first guide rods 211 extend into the woven bag a and support the top area of ​​the woven bag a, the gripping state of the first gripping structure is released. As the two sets of first cutting components continue to move along the X direction, the two first cutters 212 cut two parallel and spaced slits extending along the X direction in the top area of ​​the woven bag a. Then the first cutting mechanism 200 returns to the initial position and completes the first... The first stage of processing involves conveying the woven bag a, which has completed the first stage of processing, to the second cutting station via the conveying mechanism 100. At this point, the conveying of the woven bag a stops, and then the second gripping structure is driven to descend and grip the top area of ​​the woven bag a via the fourth drive assembly. The gripping state of the second gripping structure is maintained, and the second gripping structure is driven to rise via the fourth drive assembly to lift the top area of ​​the woven bag a. Then, the two sets of second cutting components are driven to move along the Y direction via the third drive assembly. Since the top area of ​​the woven bag a is now lifted, the two second guide rods 311 can extend into the woven bag a through one of the cuts extending along the X direction and support the top area of ​​the woven bag a. After the two second guide rods 311 extend into the woven bag a and support the top area of ​​the woven bag a, the gripping state of the second gripping structure is released. As the two sets of second cutting components continue to move along the Y direction, the two second cutters 312 cut two parallel and spaced cuts extending along the Y direction in the top area of ​​the woven bag a. Then, the second cutting mechanism 300 returns to its initial position and completes the second stage of processing.

[0040] By processing two slits extending in the X direction and two slits extending in the Y direction in the top region of the woven bag a, a rectangular area enclosed by the two slits extending in the X direction and the two slits extending in the Y direction is removed. This creates a larger rectangular opening in the top region of the woven bag a for removing the product inside the bag a, facilitating the removal of the product. Furthermore, during the cutting of the two slits extending in the X direction and the two slits extending in the Y direction, the first guide rod 211 blocks the lower part of the first cutter 212, and the second guide rod 311 blocks the lower part of the second cutter 312. This prevents the first cutter 212 and the second cutter 312 from contacting the product inside the woven bag a, thus preventing damage to the product.

[0041] It should be noted that in some embodiments, sensors (e.g., photoelectric sensors) for detecting the position of the woven bag a are set at the first and second cutting stations to control the start and stop of the conveying mechanism 100, the first cutting mechanism 200, and the second cutting mechanism 300. Of course, visual sensing technology can also be used to detect the position of the woven bag a, and this is not limited here.

[0042] It should be noted that in some embodiments, the first gripping structure and the first cutting component, as well as the second gripping structure and the second cutting component, can be offset to avoid each other. Of course, the first gripping structure and the second gripping structure can also be driven to rise to avoid each other, which is not limited here.

[0043] It should be noted that in some embodiments, the ends of the first guide rod 211 and the second guide rod 311 are conical, and the conical ends have a guiding function to facilitate the movement of the first guide rod 211 and the second guide rod 311 inside the woven bag a, which helps to prevent the woven bag a from deviating from the processing position as the first guide rod 211 and the second guide rod 311 move.

[0044] Specifically, it should be noted that the pointed part can be a knife-like structure or a cone-like structure, and no limitation is made here.

[0045] It should be noted that in some embodiments, the first cutter 212 and the second cutter 312 are both detachable structures. Specifically, the first cutter 212 and the second cutter 312 are assembled by bolts or snap-fit ​​structures to facilitate the replacement of the first cutter 212 and the second cutter 312.

[0046] It should be noted that in some embodiments, the control device used with the automatic bag cutting device of this application is equipped with an emergency stop button. At the same time, the automatic bag cutting device of this application is also equipped with an emergency stop button at a nearby location, thereby protecting the operators on site.

[0047] Reference Figure 2 , Figure 3 and Figure 5 In some embodiments, both the first cutter 212 and the second cutter 312 are motor-driven rotary cutters. The top of the first guide rod 211 is provided with a first clearance groove 2111, and the bottom of the first cutter 212 extends into the first clearance groove 2111. This helps ensure the cutting effect of the first cutter 212 on the portion of the woven bag a supported by the first guide rod 211. The top of the second guide rod 311 is provided with a second clearance groove 3111, and the bottom of the second cutter 312 extends into the second clearance groove 3111. This helps ensure the cutting effect of the second cutter 312 on the portion of the woven bag a supported by the second guide rod 311. Specifically, the first cutter 212 and the second cutter 312 can be circular rotary cutters, or they can be regular polygonal or other shapes of rotary cutters; no limitation is made here.

[0048] It should be noted that in some other embodiments, the first cutter 212 may also be a fixed cutter with a blade only at the bottom, with the blade of the first cutter 212 in close contact with the top of the first guide rod 211, which is not limited here.

[0049] It should be noted that in some other embodiments, the second cutter 312 may also be a fixed cutter with a blade only at the bottom, with the blade of the second cutter 312 in close contact with the top of the second guide rod 311, which is not limited here.

[0050] It should be noted that in some embodiments, the sharp part is movably disposed on the first guide rod 211, and the first driving assembly is provided with a first linear driving structure (not shown in the figure). The first linear driving structure is connected to the sharp part and is used to drive the sharp part to move in the X direction. During processing, when the first guide rod 211 needs to be inserted into the woven bag a, the first linear driving structure drives the sharp part to move forward in the X direction, so that the sharp part protrudes from the end of the first guide rod 211 and can pierce the woven bag a, thereby allowing the first guide rod 211 to be inserted into the woven bag a; after the first guide rod 211 is inserted into the woven bag a, the first linear driving structure drives the sharp part to move backward in the X direction, so that the sharp part no longer protrudes from the end of the first guide rod 211, thereby preventing the sharp part from piercing the part of the woven bag a supported by the first guide rod 211 and causing the woven bag a to deviate from the cutting position.

[0051] Reference Figure 1and Figure 4 In some embodiments, the conveying mechanism 100 includes a first conveyor 110, a second conveyor 120, and a third conveyor 130 sequentially connected along the X direction. The second conveyor 120 is located at a first cutting station, and the third conveyor 130 is located at a second cutting station. Liftable material blocking components 400 are provided between the feeding end of the second conveyor 120 and the discharging end of the first conveyor 110, and between the feeding end of the third conveyor 130 and the discharging end of the second conveyor 120. This allows the conveying mechanism 100 to be broken down into smaller components during transportation, which helps reduce transportation difficulties. In use, when the first cutting station has a woven bag a being processed, the baffle assembly 400 located between the feed end of the second conveyor 120 and the discharge end of the first conveyor 110 rises to block the woven bag a to be processed conveyed by the first conveyor 110, so as to prevent the woven bag a being processed at the first cutting station from being affected; at the same time, when the second cutting station has a woven bag a being processed, the baffle assembly 400 located between the feed end of the third conveyor 130 and the discharge end of the second conveyor 120 rises to block the woven bag a that has completed the first stage of processing conveyed by the second conveyor 120, so as to prevent the woven bag a being processed at the second cutting station from being affected.

[0052] It should be noted that in some embodiments, the first conveyor 110, the second conveyor 120, and the third conveyor 130 are all belt conveyors. Of course, the first conveyor 110, the second conveyor 120, and the third conveyor 130 can also be chain conveyors, roller conveyors, or other types of conveyors, which are not limited here.

[0053] Reference Figure 6 In some embodiments, the material blocking assembly 400 includes a mounting frame 410, a lifting cylinder 420, and a blocking member 430 disposed at the end of the piston rod of the lifting cylinder 420. The lifting cylinder 420 is disposed on the mounting frame 410 and is used to drive the blocking member 430 to rise and fall. When the blocking member 430 rises, it can block the corresponding woven bag a. When the blocking member 430 falls, it can release the blockage of the corresponding woven bag a.

[0054] Reference Figure 6 In some embodiments, a support plate 431 is provided on the top of the blocking member 430. When the blocking member 430 descends to release the obstruction of the corresponding woven bag a, the support plate 431 is used to compensate for the gap of the conveying mechanism 100 for setting the baffle assembly 400 and to assist in supporting the woven bag a in the conveying process.

[0055] It should be noted that in some other embodiments, the lifting cylinder 420 can also be replaced by an electric push rod, a hydraulic cylinder or other types of lifting drive structure, which is not limited here.

[0056] Reference Figure 1 , Figure 2 and Figure 4 In some embodiments, the first driving assembly includes a first support 221, a first linear module 222, and a first crossbeam 223. The first support 221 is disposed at the first cutting station. The first linear module 222 extends along the X direction and is disposed on the first support 221. The first crossbeam 223 extends along the Y direction and is disposed on the first linear module 222. Two sets of first cutting assemblies are disposed on the first crossbeam 223. The first linear module 222 is used to drive the first crossbeam 223 to move along the X direction. Its structure is simple and easy to implement. In use, it can drive the two sets of first cutting assemblies along the X direction. The third drive assembly includes a second support 321, a second linear module 322, and a second crossbeam 323. The second support 321 is located at the second cutting station. The second linear module 322 extends along the Y direction and is located on the second support 321. The second crossbeam 323 extends along the X direction and is located on the second linear module 322. Two sets of second cutting assemblies are located on the second crossbeam 323. The second linear module 322 is used to drive the second crossbeam 323 to move along the Y direction. Its structure is simple and easy to implement. In use, it can drive the two sets of second cutting assemblies to move synchronously along the Y direction.

[0057] Reference Figure 1 and Figure 4 In some embodiments, the third drive assembly further includes a third linear module 324 and a fourth linear module 325. The third linear module 324 extends along the X direction and is disposed between one set of second cutting components and the second crossbeam 323. The fourth linear module 325 extends along the X direction and is disposed between another set of second cutting components and the second crossbeam 323. Both the third linear module 324 and the fourth linear module 325 are used to drive the corresponding second cutting components to move along the X direction. In use, the position of one set of second cutting components can be adjusted along the X direction by the third linear module 324, and the position of the other set of second cutting components can be adjusted along the X direction by the fourth linear module 325, so that the two sets of second cutting components can adapt to the length of the two X-direction extended cuts processed in the top area of ​​the woven bag a after the first stage of processing.

[0058] Specifically, the first linear module 222, the second linear module 322, the third linear module 324, and the fourth linear module 325 mentioned above are all synchronous belt type linear modules. Of course, the first linear module 222, the second linear module 322, the third linear module 324, and the fourth linear module 325 mentioned above can also be linear motor type linear modules or ball screw type linear modules, which are not limited here.

[0059] Reference Figure 1 , Figure 2 and Figure 4 In some embodiments, the first driving assembly further includes a third support 224 disposed between the first cutting assembly and the first crossbeam 223, and a second linear drive structure 225. Two sets of first cutting assemblies are disposed on the third support 224, and the second linear drive structure 225 is disposed on the first crossbeam 223 and connected to the third support 224. The second linear drive structure 225 is used to drive the third support 224 to rise and fall. In use, the first cutting assemblies can be driven to rise and fall via the second linear drive structure 225, allowing the two sets of first cutting assemblies to adapt to woven bags a containing products of different thicknesses. The first linear drive structure is disposed on the third support 224.

[0060] It should be noted that in some embodiments, the first drive assembly further includes a first position adjustment structure so that the position of the first cutting assembly can be adjusted along the Y direction, so that the two sets of first cutting assemblies can adapt to woven bags a containing products of different widths.

[0061] Specifically, the first position adjustment structure can be a bolt for fixing the first cutting component and a profile for connecting the bolt. The profile extends along the Y direction, and the position of the first cutting component is adjusted along the Y direction by adjusting the fastening position of the bolt on the profile. Of course, the position of the first cutting component can also be adjusted along the Y direction by a linear module, cylinder, or electric actuator, etc., and is not limited here.

[0062] It should be noted that in some other embodiments, the first driving component may also be two independent driving units, each driving a set of first cutting components independently; this is not limited here. The driving unit may be a linear module, a cylinder, or an electric push rod, etc., and is not limited here.

[0063] It should be noted that, in some embodiments, the third drive assembly further includes a second position adjustment structure to allow the second cutting assembly to adjust its height, so that the two sets of second cutting assemblies can adapt to woven bags a containing products of different thicknesses.

[0064] Specifically, the second position adjustment structure can be a bolt for fixing the second cutting component and a slotted hole for assembling the bolt. The length direction of the slotted hole is parallel to the vertical direction. By adjusting the position of the bolt within the slotted hole, the height of the second cutting component can be adjusted. Of course, the height of the second cutting component can also be adjusted using a linear module, cylinder, or electric actuator, etc., and this is not limited here.

[0065] It should be noted that in some other embodiments, the third drive component may also be two independent drive units, each independently driving a set of second cutting components; this is not limited here. The drive unit may be a linear module, a cylinder, or an electric actuator, etc., and is not limited here.

[0066] Reference Figure 7 and Figure 8 In some embodiments, the second drive assembly includes a fourth support 231 and a third linear drive structure 232. The fourth support 231 is mounted on the conveying mechanism 100 and located at the first cutting station. The third linear drive structure 232 is mounted on the fourth support 231 and is used to drive the first gripping structure to rise and fall. Its structure is simple and easy to implement. The fourth drive assembly includes a fifth support 331 and a fourth linear drive structure 332. The fifth support 331 is mounted on the conveying mechanism 100 and located at the second cutting station. The fourth linear drive structure 332 is mounted on the fifth support 331 and is used to drive the second gripping structure to rise and fall. Its structure is simple and easy to implement.

[0067] Reference Figure 7 In some embodiments, the second drive assembly further includes a fifth linear drive structure 233, which is disposed between the first gripping structure and the third linear drive structure 232. The fifth linear drive structure 233 is used to drive the first gripping structure to move along the Y direction. In conjunction with the lifting action of the first gripping structure, it can better avoid the first cutting component and enable the first gripping structure to adapt to woven bags a containing products of different widths.

[0068] Specifically, there are two sets of first gripping structures, which are arranged on both sides of the conveying mechanism 100 along the Y direction. Correspondingly, there are also two sets of second drive components. By setting two sets of first gripping structures, the gripping effect on the top area of ​​the woven bag a can be improved.

[0069] Reference Figure 8 In some embodiments, the fourth drive assembly further includes a sixth linear drive structure 333, which is disposed between the fourth linear drive structure 332 and the fifth support 331. The sixth linear drive structure 333 is used to drive the second gripping structure to move along the Y direction. In conjunction with the lifting action of the second gripping structure, it can adapt to woven bags a containing products of different widths on the one hand, and push the woven bag a that has completed the second stage of processing away from the second cutting station on the other hand.

[0070] It should be noted that in some other embodiments, the fifth linear drive structure 233 may also be disposed between the third linear drive structure 232 and the fourth bracket 231, which is not limited here.

[0071] It should be noted that in some other embodiments, the sixth linear drive structure 333 may also be disposed between the second gripping structure and the fourth linear drive structure 332, which is not limited here.

[0072] Specifically, the first linear drive structure, the second linear drive structure 225, the third linear drive structure 232, the fourth linear drive structure 332, the fifth linear drive structure 233, and the sixth linear drive structure 333 mentioned above are all cylinders. Of course, the first linear drive structure, the second linear drive structure 225, the third linear drive structure 232, the fourth linear drive structure 332, the fifth linear drive structure 233, and the sixth linear drive structure 333 mentioned above can also be electric push rods, hydraulic cylinders, or other types of linear drive structures, which are not limited here.

[0073] Reference Figure 1 , Figure 2 , Figure 4 , Figure 7 and Figure 8 In some embodiments, the first gripping structure includes a first duct 240 for adsorbing the top area of ​​the woven bag a, the first duct 240 being connected to an external negative pressure generating device, and its structure is simple and easy to implement; the second gripping structure includes a second duct 340 for adsorbing the top area of ​​the woven bag a, the second duct 340 being connected to an external negative pressure generating device, and its structure is simple and easy to implement.

[0074] It should be noted that in some other embodiments, the first air duct 240 and the second air duct 340 can also be replaced by a vacuum suction cup, which is not limited here.

[0075] It should be noted that in some other embodiments, the first gripping structure and the second gripping structure may also use a finger cylinder or other types of gripping structures to grip the top area of ​​the woven bag a, which is not limited here.

[0076] In the description of this specification, the use of terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," and "some examples" indicates that the specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0077] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. An automatic bag-cutting device, characterized in that, The automatic bag cutting device includes a first cutting station and a second cutting station distributed along the X direction. A conveying mechanism for conveying woven bags containing products along the X direction, the conveying path of the conveying mechanism passing through the first cutting station and the second cutting station; A first cutting mechanism is disposed at the first cutting station. The first cutting mechanism includes a first driving component, a second driving component, a first gripping structure, and two sets of first cutting components arranged side by side and spaced apart along the Y direction. Each first cutting component includes a first guide rod extending along the X direction and a first cutter disposed above the first guide rod for cutting the woven bag along the X direction. The first guide rod is provided with a sharp part for piercing the woven bag along the X direction. The first driving component can drive the two sets of first cutting components to move along the X direction. The first gripping structure is used to grip the top area of ​​the woven bag. The second driving component can drive the first gripping structure to rise and fall. The second cutting mechanism is disposed at the second cutting station. The second cutting mechanism includes a third driving component, a fourth driving component, a second gripping structure, and two sets of second cutting components arranged side by side and spaced apart along the X direction. The second cutting component includes a second guide rod extending along the Y direction and a second cutter disposed above the second guide rod for cutting the woven bag along the Y direction. The third driving component can drive the two sets of second cutting components to move along the Y direction. The second gripping structure is used to grip the top area of ​​the woven bag. The fourth driving component can drive the second gripping structure to rise and fall. The pointed part is movably disposed on the first guide rod, and the first driving assembly is provided with a first linear driving structure. The first linear driving structure is connected to the pointed part and is used to drive the pointed part to move along the X direction.

2. The automatic bag-cutting device as described in claim 1, characterized in that, Both the first cutter and the second cutter are rotary cutters driven by a motor. The top of the first guide rod is provided with a first clearance groove, and the bottom of the first cutter extends into the first clearance groove. The top of the second guide rod is provided with a second clearance groove, and the bottom of the second cutter extends into the second clearance groove.

3. The automatic bag-cutting device as described in claim 1, characterized in that, The conveying mechanism includes a first conveyor, a second conveyor, and a third conveyor connected sequentially along the X direction. The second conveyor is located at the first cutting station, and the third conveyor is located at the second cutting station. Liftable material blocking components are provided between the feeding end of the second conveyor and the discharging end of the first conveyor, and between the feeding end of the third conveyor and the discharging end of the second conveyor.

4. The automatic bag-cutting device as described in claim 1, characterized in that, The first driving component includes a first bracket, a first linear module, and a first crossbeam. The first bracket is disposed at the first cutting station. The first linear module extends along the X direction and is disposed on the first bracket. The first crossbeam extends along the Y direction and is disposed on the first linear module. Two sets of the first cutting components are disposed on the first crossbeam. The first linear module is used to drive the first crossbeam to move along the X direction. The third drive assembly includes a second bracket, a second linear module, and a second crossbeam. The second bracket is disposed at the second cutting station. The second linear module extends along the Y direction and is disposed on the second bracket. The second crossbeam extends along the X direction and is disposed on the second linear module. Two sets of the second cutting assemblies are disposed on the second crossbeam. The second linear module is used to drive the second crossbeam to move along the Y direction.

5. The automatic bag-cutting device as described in claim 4, characterized in that, The third drive assembly further includes a third linear module and a fourth linear module. The third linear module extends along the X direction and is disposed between one group of the second cutting components and the second crossbeam. The fourth linear module extends along the X direction and is disposed between another group of the second cutting components and the second crossbeam. Both the third linear module and the fourth linear module are used to drive the corresponding second cutting components to move along the X direction.

6. The automatic bag-cutting device as described in claim 4, characterized in that, The first drive assembly further includes a third bracket disposed between the first cutting assembly and the first crossbeam, and a second linear drive structure. Two sets of the first cutting assemblies are disposed on the third bracket, and the second linear drive structure is disposed on the first crossbeam and connected to the third bracket. The second linear drive structure is used to drive the third bracket to rise and fall.

7. The automatic bag-cutting device as described in claim 1, characterized in that, The second drive assembly includes a fourth bracket and a third linear drive structure. The fourth bracket is disposed on the conveying mechanism and located at the first cutting station. The third linear drive structure is disposed on the fourth bracket and is used to drive the first gripping structure to lift and lower. The fourth drive assembly includes a fifth bracket and a fourth linear drive structure. The fifth bracket is mounted on the conveying mechanism and located at the second cutting station. The fourth linear drive structure is mounted on the fifth bracket and is used to drive the second gripping structure to lift and lower.

8. The automatic bag-cutting device as described in claim 7, characterized in that, The second driving component further includes a fifth linear driving structure, which is disposed between the first gripping structure and the third linear driving structure. The fifth linear driving structure is used to drive the first gripping structure to move along the Y direction; and / or, The fourth drive component further includes a sixth linear drive structure, which is disposed between the fourth linear drive structure and the fifth bracket. The sixth linear drive structure is used to drive the second gripping structure to move along the Y direction.

9. The automatic bag-cutting device as described in claim 1, characterized in that, The first gripping structure includes a first air duct for adsorbing the top area of ​​the woven bag, the first air duct being connected to an external negative pressure generating device; The second gripping structure includes a second duct for adsorbing the top area of ​​the woven bag, the second duct being connected to an external negative pressure generating device.

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