Cutting equipment for woven bags

Abstract

The invention provides cutting equipment for woven bags, which is applied to the technical field of cutting equipment, and is characterized in that the cutting equipment comprises an outer-layer woven material belt and an inner-layer plastic material belt, and the outer-layer woven material belt and the inner-layer plastic material belt are stacked up and down to form a material belt and then are rolled to form a material roll; the discharging mechanism is used for discharging the material coil; the cutting mechanism is used for cutting the material belt into an outer-layer woven part and an inner-layer moisture-proof part; the separating mechanism is used for separating the outer-layer weaving part from the inner-layer moisture-proof part; the opening mechanism is used for opening an opening in one end of the outer-layer weaving part; the assembling mechanism is used for assembling the inner layer moisture-proof part to the outer layer weaving part from the opening end; compared with the prior art, the composite winding machine has the technical effects that the outer-layer woven material belt and the inner-layer plastic material belt are compounded and wound in advance, and the core working procedures of cutting and assembling can be completed only by one piece of equipment, so that the equipment structure is greatly simplified, the occupied area and the production links are reduced, and the automation degree and the production efficiency are improved.

Description

Technical Field

[0001] This invention relates to the field of cutting equipment technology, and in particular to a cutting device for woven bags. Background Technology

[0002] Existing woven bags mainly consist of an outer woven layer and an inner moisture-proof layer. The outer woven layer is mostly woven from materials such as polypropylene or polyethylene, providing mechanical strength and abrasion resistance; the inner moisture-proof layer is usually made of plastic film, which serves to prevent moisture and dampness, ensuring the quality of the packaged goods.

[0003] Currently, in the production process of woven bags, the cutting of the outer woven layer and the inner moisture-proof layer that make up the woven bag usually needs to be carried out separately. Therefore, the production enterprise needs to be equipped with two independent cutting machines. One machine is used to cut the outer woven material into sections of the outer woven part, and the other machine is used to cut the inner moisture-proof material into sections of the inner moisture-proof part. After the cutting is completed, the inner moisture-proof part is stuffed into the outer woven part through an additional assembly process. Finally, one end is sewn closed to form the final woven bag product. However, the existing woven bag production requires two independent cutting machines, and the entire production system involves multiple components and control units, which increases the manufacturing and maintenance costs of the equipment. Furthermore, the two machines and the supporting assembly line require a large amount of production space, resulting in reduced factory utilization. This is especially true for small and medium-sized enterprises, where the space cost burden is heavy. Summary of the Invention

[0004] The purpose of this invention is to provide a cutting device for woven bags, which has the advantages of integrating cutting functions, simplifying the production process and reducing the floor space required.

[0005] To achieve the above and other related objectives, the present invention provides the following technical solution: A cutting device for woven bags includes an outer woven material strip and an inner plastic material strip, wherein the outer woven material strip and the inner plastic material strip are stacked one on top of the other to form a material strip and then wound into a material roll; it also includes... A feeding mechanism for feeding material rolls; A cutting mechanism, which is used to cut the material strip into an outer woven part and an inner moisture-proof part; A separation mechanism for separating the outer woven portion and the inner moisture-proof portion; An opening mechanism, which is used to open one end of the outer braided portion; An assembly mechanism for assembling the inner moisture-proof layer from one end of the opening to the outer woven layer.

[0006] In one embodiment of the present invention, the feeding mechanism includes a feeding frame, a support frame fixed on the feeding frame and used to carry the material roll, a plurality of tension rollers rotatably arranged on the feeding frame, a feeding roller group rotatably arranged on the feeding frame, and a feeding drive motor fixed on the feeding frame and used to drive the feeding roller group to rotate. The feeding roller assembly includes two feeding rollers arranged vertically and in contact with each other, and the output shaft of the feeding drive motor is fixedly connected to one of the feeding rollers.

[0007] In one embodiment of the present invention, a cutting worktable is further included, the surface of which is flush with the contact surfaces of the two feeding rollers.

[0008] In one embodiment of the present invention, the cutting mechanism is disposed on a cutting workbench, and the cutting mechanism includes a cutting bracket, a cutting cylinder fixed on the cutting bracket, and a cutting blade fixedly connected to the piston rod of the cutting cylinder.

[0009] In one embodiment of the present invention, the separating mechanism includes a first lifting assembly for lifting the outer woven portion upward and a conveying assembly for conveying the inner moisture-proof portion forward; The first lifting assembly includes a first lifting bracket fixed on the cutting workbench, a first lifting cylinder fixed on the first lifting bracket, a first lifting mounting plate fixed on the piston rod of the first lifting cylinder, and a plurality of first lifting suction cups mounted on the first lifting mounting plate and connected to an external negative pressure device.

[0010] In one embodiment of the present invention, the conveying assembly includes a conveying housing installed in the middle of the cutting workbench, a conveyor belt covering the conveying housing and forming a dynamic seal between the conveying housing and the conveying housing, and a conveying drive assembly disposed on the conveying housing and used to drive the conveyor belt to convey intermittently. A negative pressure cavity is formed between the conveyor housing and the conveyor belt, which is connected to an external negative pressure device. Several air suction holes are provided on the conveyor belt.

[0011] In one embodiment of the present invention, two sets of lifting components are provided on the cutting worktable, wherein one set of the lifting components is provided on the side near the opening of the outer knitted portion and is used to open the opening of the outer knitted portion. The opening mechanism includes an opening cylinder fixed to the bottom of the cutting workbench, an opening mounting plate fixed to the piston rod of the opening cylinder, and two opening components. The opening component includes a rotary cylinder fixed to an opening mounting plate and a support plate fixed to the piston rod of the rotary cylinder.

[0012] In one embodiment of the present invention, an assembly platform is further included, and the assembly mechanism is disposed on the assembly platform; The assembly mechanism includes a second lifting component for lifting the tail of the inner moisture-proof part on the assembly platform upward, and an assembly component for clamping the tail of the upwardly lifted inner moisture-proof part and inserting it through the opening of the outer woven part. The second lifting assembly includes a second lifting bracket fixed on the assembly platform, a second lifting cylinder fixed on the second lifting bracket, a second lifting mounting plate fixed on the piston rod of the second lifting cylinder, and a plurality of second lifting suction cups mounted on the second lifting mounting plate and connected to an external negative pressure device.

[0013] In one embodiment of the present invention, the assembly assembly includes a support plate fixed on an assembly platform, an assembly cylinder fixed on the support plate, an assembly plate fixed on the piston rod of the assembly cylinder, two assembly rods fixed on the assembly plate, and two clamping parts respectively fixed on the two assembly rods.

[0014] In one embodiment of the present invention, the clamping component includes a clamping cylinder fixed to an assembly rod, a first clamping plate fixed to the cylinder body of the clamping cylinder, and a second clamping plate fixed to the piston rod of the clamping cylinder, wherein the first clamping plate and the second clamping plate are disposed opposite to each other.

[0015] As described above, the woven bag cutting device of the present invention has the following beneficial effects: 1. The outer woven material strip and the inner plastic material strip are stacked one on top of the other and then rolled into a roll. Thus, the outer woven part and the inner moisture-proof part can be cut in one cut. This integrates the cutting function, simplifies the production process and reduces the floor space. 2. The feeding mechanism feeds the material roll, and the cutting mechanism cuts the material strip from the roll. The material strip can be cut into an outer woven layer and an inner moisture-proof layer stacked on top of each other in a single cut. The separating mechanism separates the outer woven layer and the inner moisture-proof layer. A first lifting component lifts the upper outer woven layer upwards, while a conveying component continues to convey the lower inner moisture-proof layer to the assembly platform. A lifting component near the opening of the outer woven layer opens the opening, and two expansion plates in the opening mechanism stably open the opening. A second lifting component lifts the tail of the inner moisture-proof layer from the assembly platform. A clamping component in the assembly component clamps the tail of the inner moisture-proof layer, and the assembly cylinder piston rod releases, driving the inner moisture-proof layer into the outer woven layer. The composite material strip is cut in one step and automatically assembled into a woven bag semi-finished product, improving automation and production efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the material roll structure according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 3 This is a schematic diagram of the feeding mechanism according to an embodiment of the present invention; Figure 4 This is a plan view of the feeding mechanism of an embodiment of the present invention. Figure 5 This is a schematic diagram of the cutting mechanism and the separating mechanism according to an embodiment of the present invention; Figure 6 This is a schematic diagram showing the positional relationship between the opening mechanism and the cutting worktable in an embodiment of the present invention; Figure 7 This is a schematic diagram of the opening mechanism according to an embodiment of the present invention; Figure 8 This is a structural cross-sectional view of the conveying assembly according to an embodiment of the present invention; Figure 9 This is a schematic diagram of the assembly mechanism according to an embodiment of the present invention; Figure 10 This is a schematic diagram of the clamping component according to an embodiment of the present invention.

[0018] Reference numerals: 1. Outer braided material strip; 2. Inner plastic material strip; 3. Material strip; 4. Material roll; 5. Feeding mechanism; 51. Feeding rack; 52. Support frame; 53. Tension roller; 54. Feeding drive motor; 55. Feeding roller; 6. Cutting mechanism; 61. Cutting worktable; 62. Cutting bracket; 63. Cutting cylinder; 64. Cutting blade; 7. Separation mechanism; 71. First lifting assembly; 711. First lifting bracket; 712. First lifting cylinder; 713. First lifting mounting plate; 714. First lifting suction cup; 72. Conveying assembly; 721. Conveying housing; 722. Conveyor belt; 723. Conveying drive assembly 724. Negative pressure chamber; 725. Suction port; 8. Opening mechanism; 81. Opening cylinder; 82. Opening mounting plate; 83. Opening component; 831. Rotary cylinder; 832. Spreading plate; 9. Assembly mechanism; 91. Assembly platform; 92. Second lifting assembly; 921. Second lifting bracket; 922. Second lifting cylinder; 923. Second lifting mounting plate; 924. Second lifting suction cup; 93. Assembly assembly; 931. Support plate; 932. Assembly cylinder; 933. Assembly plate; 934. Assembly rod; 935. Clamping component; 9351. Clamping cylinder; 9352. First clamping plate; 9353. Second clamping plate. Detailed Implementation

[0019] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification.

[0020] Please see Figures 1 to 10 It should be understood that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and to facilitate understanding and reading. They are not intended to limit the scope of the invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of the invention, should still fall within the scope of the technical content disclosed in this invention. Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of the invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention's implementation.

[0021] Please see Figure 1 The present invention provides a cutting device for woven bags, including an outer woven material strip 1 and an inner plastic material strip 2. The outer woven material strip 1 and the inner plastic material strip 2 are stacked one on top of the other to form a material strip 3 and then wound into a material roll 4. In this embodiment, the outer woven material strip 1 is located above the inner plastic material strip 2. A feeding mechanism 5, a cutting mechanism 6, a separating mechanism 7, an opening mechanism 8 and an assembly mechanism 9 are arranged sequentially along the flow direction of the material strip 3. Please see Figure 2 , Figure 3 and Figure 4 The feeding mechanism 5 is used to feed the material roll 4. The feeding mechanism 5 includes a feeding frame 51, a support frame 52 bolted to the feeding frame 51 and used to support the material roll 4, several tension rollers 53 rotatably arranged on the feeding frame 51, a group of feeding rollers 55 rotatably arranged on the feeding frame 51, and a feeding drive motor 54 fixed on the feeding frame 51 and used to drive the group of feeding rollers 55 to rotate. The support frame 52 is provided with a V-groove for limiting the material roll 4. The tension rollers 53 are used to guide and tension the released material strip 3. The group of feeding rollers 55 includes two feeding rollers 55 arranged vertically and in contact with each other. The output shaft of the feeding drive motor 54 is fixedly connected to one of the feeding rollers 55. The motor drives the feeding roller 55 to rotate, and the material strip 3 of the material roll 4 is smoothly pulled out by friction.

[0022] Please see Figure 6 The material feeding rack 51 is also provided with a cutting worktable 61 on one side. The table surface of the cutting worktable 61 is level with the contact surface of the two feeding rollers 55 to ensure that the material strip 3 can enter the cutting station flat and without wrinkles. In this embodiment, the cutting worktable 61 is also provided with an assembly worktable on one side. Please see Figure 5The cutting mechanism 6 is mounted on the cutting workbench 61 and is used to cut the material strip 3 to a fixed length. The cutting mechanism 6 includes a cutting bracket 62 fixed on the cutting workbench 61, a cutting cylinder 63 fixed on the cutting bracket 62, and a cutting blade 64 fixedly connected to the piston rod of the cutting cylinder 63. When the material strip 3 is conveyed to the predetermined length, the cutting cylinder 63 drives the cutting blade 64 to press down, cutting the material strip 3 in one go, forming an outer woven part and an inner moisture-proof part stacked on top of each other.

[0023] Please see Figure 5 The separation mechanism 7 is used to separate the outer woven part and the inner moisture-proof part that are stacked on top of each other after cutting; wherein the separation mechanism 7 includes a first lifting component 71 and a conveying component 72; The first lifting assembly 71 includes a first lifting bracket 711, a first lifting cylinder 712, a first lifting mounting plate 713, and several first lifting suction cups 714. The first lifting bracket 711 is bolted to the cutting worktable. The piston rod of the first lifting cylinder 712 extends downward and is bolted to the first lifting bracket 711. The first lifting mounting plate 713 is bolted to the piston rod of the first lifting cylinder 712. Several first lifting suction cups 714 are mounted on the first lifting mounting plate 713 and connected to an external negative pressure device. In this embodiment, the external negative pressure device can be a vacuum generator. After cutting is completed, the first lifting cylinder 712 is activated, driving the first lifting suction cups 714 to descend and adhere to the upper outer woven part. Then, the piston rod of the first lifting cylinder 712 retracts, lifting the outer woven part upward to separate it from the lower inner moisture-proof part.

[0024] Please see Figure 8 The conveying assembly 72 is used to convey the lower inner moisture-proof part forward while separating. The conveying assembly 72 includes a conveying housing 721 installed in the middle of the cutting workbench 61, a conveyor belt 722 covering the conveying housing 721 and forming a dynamic seal between the conveying housing 721 and the conveying housing 721, and a conveying drive assembly 723 set on the conveying housing 721 and used to drive the conveyor belt 722 to convey intermittently. In this embodiment, the conveying drive assembly 723 can be a motor and a pulley, with the motor driving the pulley to drive the conveyor belt 722. In this embodiment, a negative pressure chamber 724 is formed between the conveying housing 721 and the conveyor belt 722, and the negative pressure chamber 724 is connected to an external negative pressure device through a pipe. A plurality of suction holes 725 are evenly opened on the conveyor belt 722. When the inner moisture-proof part is conveyed to the conveyor belt 722, the negative pressure firmly adsorbs it onto the surface of the conveyor belt 722 through the suction holes 725. The conveying drive assembly 723 drives the conveyor belt 722 to convey intermittently, and smoothly conveys the inner moisture-proof part to the downstream assembly platform 91.

[0025] Please see Figure 6 and Figure 7The opening mechanism 8 is used to open one end of the outer woven part that will be lifted by the first lifting component 71. In this embodiment, two sets of first lifting components 71 are provided on the cutting workbench 61. One set is responsible for the initial separation and lifting, and the other set is located on the side of the opening near the outer woven part, which is responsible for opening the bag opening during the second lifting. The opening mechanism 8 includes an opening cylinder 81 bolted to the bottom of the cutting table 61, an opening mounting plate 82 bolted to the piston rod of the opening cylinder 81, and two opening parts 83; in this embodiment, the cutting table 61 is provided with an opening for the opening parts 83 to pass through. Each opening 83 includes a rotary cylinder 831 and a support plate 832 fixed to the piston rod of the rotary cylinder 831; when the outer woven portion is pulled to the appropriate position, the two openings 83 rise under the drive of the opening cylinder 81 and rise through the opening to above the cutting table 61. Subsequently, the rotary cylinder 831 is activated, driving the two spreading plates 832 to rotate in opposite directions and insert them into the outer braided part from the opening, thereby stably spreading the opening of the outer braided part to prepare for subsequent assembly.

[0026] Please see Figure 9 and Figure 10 The assembly mechanism 9 is mounted on the assembly platform 91 and is used to insert the inner moisture-proof part into the outer woven part through the opening; the assembly mechanism 9 includes a second lifting component 92 and an assembly component 93; The second lifting assembly 92 is used to lift the tail of the inner moisture-proof part that has been transported to the assembly platform 91 upwards; the second lifting assembly 92 includes a second lifting bracket 921 fixed on the assembly platform 91, a second lifting cylinder 922 fixed on the second lifting bracket 921, a second lifting mounting plate 923 fixed on the piston rod of the second lifting cylinder 922, and a plurality of second lifting suction cups 924 mounted on the second lifting mounting plate 923 and connected to an external negative pressure device.

[0027] Please see Figure 9 and Figure 10 Assembly component 93 is used to clamp the tail of the lifted inner moisture-proof part and insert it into the outer woven part; assembly component 93 includes support plate 931, assembly cylinder 932, two assembly rods 934 and two clamping parts 935; wherein support plate 931 is bolted to assembly platform 91, assembly cylinder 932 is horizontally fixed to support plate 931, assembly plate 933 is bolted to piston rod of assembly cylinder 932, the two assembly rods 934 are arranged in parallel and bolted to assembly plate 933, and the two clamping parts 935 are respectively installed at the ends of the two assembly rods 934; The clamping component 935 includes a clamping cylinder 9351 fixed to the end of the assembly rod 934, a first clamping plate 9352 fixed to the cylinder body of the clamping cylinder 9351, and a second clamping plate 9353 fixed to the piston rod of the clamping cylinder 9351, wherein the first clamping plate 9352 and the second clamping plate 9353 are arranged opposite to each other. When the second lifting assembly 92 lifts the tail of the inner moisture-proof part to a suitable height, the tail of the inner moisture-proof part is located between the first clamping plate 9352 and the second clamping plate 9353. The piston rods of the two clamping cylinders 9351 retract and drive the first clamping plate 9352 and the second clamping plate 9353 to close, together clamping the tail of the inner moisture-proof part. Subsequently, the piston rod of the assembly cylinder 932 releases and drives the entire assembly plate 933 and the clamping component 935 to move forward, inserting the clamped inner moisture-proof part into the bag opening of the stretched outer woven part. The piston rods of the two clamping cylinders 9351 release again and drive the first clamping plate 9352 and the second clamping plate 9353 to open, releasing the inner moisture-proof part and completing the assembly.

[0028] Brief description of usage: 1. Feeding: The feeding drive motor 54 operates, driving the feeding rollers 55 to smoothly feed the material strip 3 of the composite material roll 4. After being guided by the tension rollers 53, it is laid flat on the cutting worktable 61.

[0029] 2. Cutting: After the material strip 3 is conveyed to the predetermined length, the cutting cylinder 63 drives the cutting blade 64 to press down and cut the material strip 3 in one go, forming an outer woven part and an inner moisture-proof part stacked on top of each other.

[0030] 3. Separation: The first lifting component 71 adsorbs and lifts the outer woven part of the upper layer; at the same time, the conveying component 72 adsorbs and conveys the inner moisture-proof part of the lower layer through negative pressure, thus achieving separation between the two.

[0031] 4. Opening: The opening mechanism 8 inserts the expansion plate 832 into the bag opening of the outer woven part that is being lifted and expands it.

[0032] 5. Assembly: The second lifting component 92 adsorbs and lifts the tail of the inner moisture-proof part on the assembly platform 91. The clamping part 935 in the assembly component 93 clamps it and is pushed by the assembly cylinder 932 to insert it into the outer woven bag that has been opened.

[0033] In summary, by pre-composite and winding the outer woven material strip 1 and the inner plastic material strip 2, the core processes of cutting and assembly can be completed with only one machine, which greatly simplifies the equipment structure, reduces the floor space and production links, and improves the degree of automation and production efficiency.

[0034] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. A cutting device for woven bags, characterized in that: It includes an outer woven material strip (1) and an inner plastic material strip (2), wherein the outer woven material strip (1) and the inner plastic material strip (2) are stacked one on top of the other to form a material strip (3) and then wound into a material roll (4); it also includes The feeding mechanism (5) is used to feed the material roll (4); The cutting mechanism (6) is used to cut the strip (3) into an outer woven part and an inner moisture-proof part; Separation mechanism (7), said separation mechanism (7) is used to separate the outer woven part and the inner moisture-proof part; An opening mechanism (8) is used to open one end of the outer braided portion; Assembly mechanism (9) is used to assemble the inner moisture-proof part from one end of the opening into the outer woven part.

2. The woven bag cutting device according to claim 1, characterized in that: The feeding mechanism (5) includes a feeding frame (51), a support frame (52) fixed on the feeding frame (51) and used to carry the material roll (4), a plurality of tension rollers (53) rotatably arranged on the feeding frame (51), a group of feeding rollers (55) rotatably arranged on the feeding frame (51), and a feeding drive motor (54) fixed on the feeding frame (51) and used to drive the group of feeding rollers (55) to rotate; The feeding roller (55) group includes two feeding rollers (55) arranged vertically and in contact with each other, and the output shaft of the feeding drive motor (54) is fixedly connected to one of the feeding rollers (55).

3. The woven bag cutting device according to claim 2, characterized in that: It also includes a cutting worktable (61), the surface of which is flush with the contact surfaces of the two feeding rollers (55).

4. The woven bag cutting device according to claim 3, characterized in that: The cutting mechanism (6) is set on the cutting workbench (61). The cutting mechanism (6) includes a cutting bracket (62), a cutting cylinder (63) fixed on the cutting bracket (62), and a cutting blade (64) fixedly connected to the piston rod of the cutting cylinder (63).

5. The woven bag cutting device according to claim 3, characterized in that: The separation mechanism (7) includes a first lifting assembly (71) for lifting the outer woven portion upward and a conveying assembly (72) for conveying the inner moisture-proof portion forward; The first lifting assembly (71) includes a first lifting bracket (711) fixed on the cutting workbench (61), a first lifting cylinder (712) fixed on the first lifting bracket (711), a first lifting mounting plate (713) fixed on the piston rod of the first lifting cylinder (712), and a plurality of first lifting suction cups (714) mounted on the first lifting mounting plate (713) and connected to an external negative pressure device.

6. The woven bag cutting device according to claim 5, characterized in that: The conveying assembly (72) includes a conveying housing (721) installed in the middle of the cutting workbench (61), a conveyor belt (722) covering the conveying housing (721) and forming a dynamic seal with the conveying housing (721), and a conveying drive assembly (723) disposed on the conveying housing (721) for driving the conveyor belt (722) to convey intermittently. A negative pressure chamber (724) for connection with an external negative pressure device is formed between the conveyor housing (721) and the conveyor belt (722), and a plurality of air suction holes (725) are provided on the conveyor belt.

7. The woven bag cutting device according to claim 5, characterized in that: The cutting workbench (61) is provided with two sets of lifting components, one of which is located on the side near the opening of the outer braided part and is used to open the opening of the outer braided part. The opening mechanism (8) includes an opening cylinder (81) fixed to the bottom of the cutting table (61), an opening mounting plate (82) fixed to the piston rod of the opening cylinder (81), and two opening parts (83). The opening component (83) includes a rotary cylinder (831) fixed on the opening mounting plate (82) and a support plate (832) fixed on the piston rod of the rotary cylinder (831).

8. The woven bag cutting device according to claim 1, characterized in that: It also includes an assembly platform (91), on which the assembly mechanism (9) is disposed; The assembly mechanism (9) includes a second lifting component (92) for lifting the tail of the inner moisture-proof part on the assembly platform (91) upward and an assembly component (93) for clamping the tail of the upwardly lifted inner moisture-proof part and inserting it through the opening of the outer woven part. The second lifting assembly (92) includes a second lifting bracket (921) fixed on the assembly platform (91), a second lifting cylinder (922) fixed on the second lifting bracket (921), a second lifting mounting plate (923) fixed on the piston rod of the second lifting cylinder (922), and a plurality of second lifting suction cups (924) mounted on the second lifting mounting plate (923) and connected to an external negative pressure device.

9. The woven bag cutting device according to claim 8, characterized in that: The assembly component (93) includes a support plate (931) fixed on the assembly platform (91), an assembly cylinder (932) fixed on the support plate (931), an assembly plate (933) fixed on the piston rod of the assembly cylinder (932), two assembly rods (934) fixed on the assembly plate (933), and two clamping parts (935) respectively fixed on the two assembly rods (934).

10. A cutting device for woven bags according to claim 9, characterized in that: The clamping component (935) includes a clamping cylinder (9351) fixed on the assembly rod (934), a first clamping plate (9352) fixed on the cylinder body of the clamping cylinder (9351), and a second clamping plate (9353) fixed on the piston rod of the clamping cylinder (9351), wherein the first clamping plate (9352) and the second clamping plate (9353) are arranged opposite to each other.

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