Inner film bagging equipment and woven bag combination device

Abstract

The invention discloses inner film bagging equipment and a woven bag combination device. The inner film bagging equipment comprises a rack, a driving structure, an inner film conveying structure and at least two adsorption structures. The rack is provided with a combined station; the at least two adsorption structures are installed on the rack, located on the same side of the combination station, used for adsorbing the outer bags, capable of moving in the direction close to and away from the combination station and capable of being close to and away from each other; the driving structure is mounted on the rack, is connected with the at least two adsorption structures and is used for driving the adsorption structures to get close to and get away from the combined station and driving the at least two adsorption structures to get close to and get away from each other; the inner film conveying structure is arranged on the rack and used for conveying the inner film into the opened outer bag. The scheme can be suitable for outer bags of various sizes, openings of the outer bags can be opened in a flush mode, and universality is good.

Description

Technical Field

[0001] The present invention relates to the technical field of woven bag production equipment, and in particular to an inner film sleeve bag equipment and a woven bag combination device. Background Art

[0002] Woven bags usually consist of an outer bag and an inner film, and are generally used for containing materials such as chemical fertilizers that are prone to moisture absorption and dampness. In the production of woven bags, it is necessary to first put the inner film bag into the outer bag to complete the inner film sleeve bag process, so as to facilitate subsequent sewing and combination of the inner film and the outer bag.

[0003] Publication No. CN113263774A discloses an automatic inner film sleeve machine for woven bags. When it works, the staff turn the outer bag and the inner film to be processed into the outer bag storage seat and the inner film storage seat respectively, and move the outer bags to the working position one by one. When the outer bag reaches the working position, the adsorption nozzle of the third telescopic cylinder assembly adsorbs one side of the outer bag to open the outer bag; at the same time, the inner film is clamped by the conveying clamping arm, and the inner film is conveyed into the opened outer bag by the conveying clamping arm to complete the inner film sleeve bag.

[0004] However, in this patent, a telescopic plate is fixedly installed at the bottom of the telescopic cylinder of the third telescopic cylinder assembly, and a plurality of adsorption nozzles are fixedly installed at the bottom of the telescopic plate. That is to say, the distance between the adsorption nozzles for adsorbing the outer bag in this patent cannot be adjusted, and it can only be applicable to outer bags of a certain size. When the size of the outer bag is too large, the outer bag opening cannot be opened flatly, and the versatility needs to be improved. Summary of the Invention

[0005] The purpose of the present invention is to overcome the above technical deficiencies, and propose an inner film sleeve bag equipment to solve the technical problem that the distance between the adsorption nozzles for adsorbing the outer bag in the prior art cannot be adjusted, and it can only be applicable to outer bags of a certain size. When the size of the outer bag is too large, the outer bag opening cannot be opened flatly, and the versatility needs to be improved.

[0006] To achieve the above technical purpose, the present invention adopts the following technical solutions: In a first aspect, the present invention provides an inner film sleeve bag equipment, including: A frame having a combination station; At least two adsorption structures, installed on the frame and located on the same side of the combination station. At least two of the adsorption structures are used for adsorbing the outer bag, and can move in the direction of approaching and departing from the combination station, and can also approach and depart from each other; A driving structure, installed on the frame and respectively connected to at least two of the adsorption structures, for driving the adsorption structures to approach and depart from the combination station, and can drive at least two of the adsorption structures to approach and depart from each other; and The inner membrane conveying structure is provided on the frame and is used to send the inner membrane into the outer bag after the opening.

[0007] In some embodiments, the inner membrane bagging device further includes a mounting seat. The mounting seat is mounted on the frame and can move in a direction close to and away from the combination station. The two adsorption structures are mounted on the frame via the mounting seat. The driving structure includes a driving part and an adjusting part. The driving part is mounted on the frame and is connected to the mounting seat for driving the mounting seat to approach and move away from the combination station. The adjusting part is mounted on the mounting seat and is respectively connected to the two adsorption structures for driving the two adsorption structures to approach and move away from each other along their layout directions.

[0008] In some embodiments, the mounting seat is provided with a shaft hole. The extending direction of the shaft hole is parallel to the combination station. The adjusting part includes a driving screw and an adjusting working part. The driving screw is rotatably mounted in the shaft hole, and the thread directions at both ends of the driving screw are opposite. The adjusting working part is connected to the driving screw for driving the driving screw to rotate. The adsorption structure has a driving screw hole for the driving screw to pass through. The two adsorption structures are located at both ends of the driving screw and can approach and move away from each other when the driving screw rotates.

[0009] In some embodiments, one of the adsorption structure and the mounting seat is provided with a slider, and the other is provided with a chute for the slider to slide. The extending direction of the chute is the same as the extending direction of the shaft hole.

[0010] In some embodiments, the driving part includes a driving hydraulic cylinder. The cylinder body of the driving hydraulic cylinder is mounted on the frame and is spaced from the combination station, and its hydraulic rod is connected to the mounting seat for driving the mounting seat to approach and move away from the combination station.

[0011] In some embodiments, the adsorption structure includes an adsorption seat, a limiting part, and a plurality of suction cups. The adsorption seat is movably mounted on the frame. The plurality of suction cups are arranged on the adsorption seat and are arranged in sequence along the layout direction of the two adsorption seats. The distance between adjacent two suction cups is adjustable. The limiting part is arranged between the adsorption seat and the suction cups and limits the movement of the suction cups when the distance between adjacent two suction cups is adjusted to a preset value. The driving structure is respectively connected to the two adsorption seats for driving the adsorption seats to approach and move away from the combination station and can drive the two adsorption seats to approach and move away from each other along their layout directions.

[0012] In some embodiments, the adsorption seat is provided with a limiting groove, the limiting groove extends along the arrangement direction of the plurality of suction cups, and the base of the suction cup is provided with a connection hole corresponding to the limiting groove; The limiting part includes a limiting bolt and a limiting nut. The limiting bolt sequentially passes through the connection hole and the limiting groove, and the limiting nut is screwed on one end of the limiting bolt extending out of the limiting groove.

[0013] In some embodiments, the adsorption seat is further provided with a guiding groove, and the extending direction of the guiding groove is the same as that of the limiting groove; The base of the suction cup is slidably arranged in the guiding groove.

[0014] In some embodiments, when the adsorption structure is away from the combination station, a film feeding gap is formed at an interval from the combination station; The inner film conveying structure includes a movable seat and two clamping arms. The movable seat is installed on the frame and is located on the side of the film feeding gap away from the combination station, and can approach and move away from the combination station. The two clamping arms are installed on the movable seat and are sequentially arranged along the arrangement direction of the two adsorption structures, and can approach and move away from each other along their arrangement direction.

[0015] In a second aspect, the present solution further provides a woven bag combination device, which includes the inner film bagging device as described in any one of the above.

[0016] Compared with the prior art, in the inner film bagging device provided by the present invention, according to the size of the outer bag, first, the driving structure is used to drive the two adsorption structures to move along their arrangement direction, so that the distance between the two adsorption structures matches the width of the outer bag, ensuring that the two adsorption structures can exactly adsorb both ends in the width direction of the outer bag; then, the driving structure is used to drive the two adsorption structures to approach the outer bag located at the combination station at the same time until the two adsorption structures adsorb the same side of the outer bag, and then the two adsorption structures are driven away from the combination station, so as to flatly open the opening of the outer bag, facilitating the inner film conveying structure to send the inner film into the outer bag from the opening of the outer bag. In this way, the present solution can be applicable to outer bags of various sizes and has good versatility. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the inner film bagging device provided by an embodiment of the present invention; Figure 2 is Figure 1 a partial schematic diagram of the inner film bagging device in Figure 3 is Figure 2 a schematic diagram of the mounting seat, the adjusting part and the adsorption structure in Figure 4 is Figure 3 a schematic diagram of the adsorption structure in Figure 5 is Figure 4 a partial schematic view of the adsorption structure in Figure 6 is Figure 1 a schematic view of the inner membrane conveying structure in

[0018] Description of the reference numerals: 1. Frame; 11. Combined station; 11a. Film feeding gap; 12. Guide arm; 2. Adsorption structure; 2a. Driving screw hole; 21. Slide block; 22. Adsorption seat; 22a. Limit groove; 22b. Guide groove; 23. Limiting part; 231. Limiting bolt; 232. Limiting nut; 24. Suction cup; 24a. Connection hole; 3. Driving structure; 31. Driving part; 32. Adjusting part; 321. Driving screw; 322. Adjusting working part; 4. Inner membrane conveying structure; 41. Movable seat; 42. Clamping arm; 5. Mounting seat; 5a. Shaft hole; 5b. Slide groove; 5c. Guide hole; 6. Vacuum pump. Specific embodiments

[0019] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0020] In order to solve the technical problem in the prior art that the distance between the adsorption nozzles for adsorbing the outer bag cannot be adjusted, and it can only be applicable to outer bags of a certain size. When the size of the outer bag is too large, the opening of the outer bag cannot be opened flatly, and the versatility needs to be improved. The present invention provides an inner membrane sleeve bag device, which can be applicable to outer bags of various sizes and can open the opening of the outer bag flatly, with good versatility.

[0021] It should be noted that the inner membrane sleeve bag device described in the present invention is used for but not limited to a woven bag combination device, etc. For the convenience of description, in the present invention, only the case where the inner membrane sleeve bag device is applied to a woven bag combination device is taken as an example for description, and the principle of the inner membrane sleeve bag device applied to other types of devices is essentially the same as that applied to the woven bag combination device, and will not be elaborated one by one here.

[0022] Please refer to Figures 1 to 3 , Figures 1 to 3The structural schematic diagram of the inner membrane bagging device in an embodiment of the present invention. The inner membrane bagging device includes a frame 1, a driving structure 3, an inner membrane conveying structure 4, and at least two adsorption structures 2. The frame 1 has an assembly station 11. At least two adsorption structures 2 are installed on the frame 1 and are located on the same side of the assembly station 11. The at least two adsorption structures 2 are used for adsorbing the outer bag and can move in the directions close to and away from the assembly station 11. The driving structure 3 is installed on the frame 1 and is respectively connected to the at least two adsorption structures 2, and is used for driving the adsorption structures 2 to approach and move away from the assembly station 11, and can drive the at least two adsorption structures 2 to approach and move away from each other. The inner membrane conveying structure 4 is arranged on the frame 1 and is used for feeding the inner membrane into the opened outer bag.

[0023] In the inner membrane bagging device provided by the present invention, according to the size of the outer bag, first, the driving structure 3 is used to drive the two adsorption structures 2 to move along their arrangement directions, so that the distance between the two adsorption structures 2 matches the width of the outer bag, ensuring that the two adsorption structures 2 can exactly adsorb both ends in the width direction of the outer bag. Then, the driving structure 3 is used to drive the two adsorption structures 2 to approach the outer bag located at the assembly station 11 at the same time until the two adsorption structures 2 adsorb the same side of the outer bag, and then the two adsorption structures 2 are driven to move away from the assembly station 11, thereby opening the opening of the outer bag flatly, which is convenient for the inner membrane conveying structure 4 to feed the inner membrane into the outer bag from the opening of the outer bag. In this way, this solution can be applied to outer bags of various sizes and has good versatility.

[0024] It should be noted that, to improve the stability of opening the outer bag, non-stick glue can be set on the side of the assembly station 11 away from the two adsorption structures 2 to adhere to the side of the outer bag away from the adsorption structures 2; or an electrostatic adsorption device can be set on the side of the assembly station 11 away from the adsorption structures 2; or other forms.

[0025] Specifically, in this embodiment, the two adsorption structures 2 are placed above the assembly station 11. Thus, when the two adsorption structures 2 adsorb the upper side of the outer bag and drive the upper side of the outer bag to move upward, the lower side of the outer bag can be opened under the action of its own weight, so as to realize the flat opening of the outer bag and improve the convenience. Correspondingly, the two adsorption structures 2 are arranged in sequence along the horizontal direction.

[0026] In addition, the arrangement directions of the at least two adsorption structures 2 are parallel to the assembly station 11 and can also approach and move away from each other along their arrangement directions. Correspondingly, the driving structure 3 can drive the at least two adsorption structures 2 to approach and move away from each other along their arrangement directions.

[0027] In addition, it should be noted that the driving structure 3 can independently drive the two adsorption structures 2 to approach and move away from the assembly station 11, or can drive the two adsorption structures 2 to approach and move away from the assembly station 11 synchronously.

[0028] In one embodiment, the inner membrane bagging device further includes a mounting base 5, which is mounted on the frame 1 and can move in a direction close to and away from the combination station 11. Two adsorption structures 2 are mounted on the mounting base 5; the driving structure 3 includes a driving part 31 and an adjusting part 32. The driving part 31 is mounted on the frame 1 and is connected to the mounting base 5 for driving the mounting base 5 to approach and move away from the combination station 11. The adjusting part 32 is mounted on the mounting base 5 and is respectively connected to the two adsorption structures 2 for driving the two adsorption structures 2 to approach and move away from each other along their layout directions.

[0029] In this embodiment, the two adsorption structures 2 are simultaneously mounted on the mounting base 5, and the driving part 31 is used to drive the mounting base 5 to approach and move away from the combination station 11, thereby driving the two adsorption structures 2 to approach and move away from the combination station 11 synchronously, realizing the synchronous movement of the two adsorption structures 2, improving the adsorption efficiency, simplifying the driving structure 3, and saving costs.

[0030] It should be noted that the adjusting part 32 can be set as two independent driving units to respectively drive the two adsorption structures 2 to approach and move away from each other along their layout directions; it can also synchronously drive the two adsorption structures 2 to approach and move away from each other along their layout directions; or only drive one adsorption structure 2 to approach and move away from the other adsorption structure 2 along the layout direction.

[0031] In one embodiment, the mounting base 5 is provided with a shaft hole 5a, and the extending direction of the shaft hole 5a is parallel to the combination station 11. The adjusting part 32 includes a driving screw 321 and an adjusting working part 322. The driving screw 321 is rotatably mounted in the shaft hole 5a, and the thread directions at both ends of the driving screw 321 are opposite. The adjusting working part 322 is connected to the driving screw 321 for driving the driving screw 321 to rotate; the adsorption structure 2 has a driving screw hole 2a for the driving screw 321 to pass through. The two adsorption structures 2 are located at both ends of the driving screw 321 and can approach and move away from each other when the driving screw 321 rotates.

[0032] In this embodiment, since the thread directions at the ends of the driving screw 321 corresponding to the two adsorption structures 2 are opposite, when the driving screw 321 rotates, it can synchronously drive the two adsorption structures 2 to approach or move away from each other, improving the convenience.

[0033] It should be noted that the adjusting working part 322 can be directly set in the form of an adjusting motor to directly drive the driving screw 321 to rotate by the adjusting motor; or the adjusting working part 322 can be set as an adjusting motor and a driving gear, and a transmission gear is arranged on the driving screw 321, and the transmission gear meshes with the driving gear to drive the driving screw 321 to rotate.

[0034] In one embodiment, one of the adsorption structure 2 and the mounting base 5 is provided with a slider, and the other is provided with a chute for the slider to slide, and the extending direction of the chute is the same as that of the shaft hole 5a.

[0035] In this embodiment, a slider and a chute are arranged between the adsorption structure 2 and the mounting base 5 to guide the adsorption structure 2 to move along its layout direction and improve stability. Specifically, in this solution, the slider 21 is arranged on the adsorption structure 2, and correspondingly, the mounting base 5 is provided with a chute 5b.

[0036] It should be noted that the driving part 31 can be set in the form of an electric push rod, a hydraulic cylinder or a linear motor.

[0037] In one embodiment, the driving part 31 includes a driving hydraulic cylinder. The cylinder body of the driving hydraulic cylinder is installed on the frame 1 and is spaced from the combination station 11, and its hydraulic rod is connected to the mounting base 5 for driving the mounting base 5 to approach and move away from the combination station 11.

[0038] In this embodiment, the driving hydraulic cylinder is arranged in the vertical direction. When it is necessary to lift the mounting base 5, only the hydraulic rod of the driving hydraulic cylinder needs to be moved correspondingly, and the structure is stable and reliable. In addition, in this embodiment, a guiding arm 12 is further arranged on the frame 1, and the mounting base 5 is provided with a guiding hole 5c corresponding to the guiding arm 12. The guiding arm 12 extends in the vertical direction and passes through the guiding hole 5c.

[0039] In one embodiment, please refer to Figure 4 and Figure 5 , the adsorption structure 2 includes an adsorption base 22, a limiting part 23 and a plurality of suction cups 24. The adsorption base 22 is movably installed on the frame 1. The plurality of suction cups 24 are arranged on the adsorption base 22 and are arranged in sequence along the layout direction of the two adsorption bases 22. The distance between adjacent two suction cups 24 is adjustable. The limiting part 23 is arranged between the adsorption base 22 and the suction cups 24 and limits the movement of the suction cups 24 when the distance between adjacent two suction cups 24 is adjusted to a preset value; the driving structure 3 is respectively connected to the two adsorption bases 22 for driving the adsorption bases 22 to approach and move away from the combination station 11, and can drive the two adsorption bases 22 to approach and move away from each other along their layout directions.

[0040] In this embodiment, the distance between adjacent suction cups 24 on each adsorption base 22 is also set to be adjustable, which further facilitates opening the opening of the outer bag flat. It should be noted that in this solution, the inner membrane bagging device further includes a vacuum pump 6. The vacuum pump 6 is respectively connected to the plurality of suction cups 24 of the two adsorption structures 2 through a plurality of flexible hoses (not shown).

[0041] It should be noted that the limiting part 23 can be set in the form of magnetic attraction or a buckle, or other forms.

[0042] In one embodiment, the adsorption seat 22 is provided with a limiting groove 22a which extends along the layout direction of a plurality of suction cups 24. The base of the suction cup 24 is correspondingly provided with a connection hole 24a for the limiting groove 22a. The limiting part 23 includes a limiting bolt 231 and a limiting nut 232. The limiting bolt 231 sequentially passes through the connection hole 24a and the limiting groove 22a, and the limiting nut 232 is screwed on one end of the limiting bolt 231 extending out of the limiting groove 22a.

[0043] In this embodiment, by loosening and tightening the limiting nut 232, the position of the suction cup 24 on the adsorption seat 22 can be adjusted. After adjusting the distance between two adjacent suction cups 24, the relative movement of the suction cup 24 with respect to the adsorption seat 22 can be restricted, and the structure is simple and reliable. Specifically, in this solution, two connection holes 24a are provided on the seat body of each suction cup 24. Correspondingly, there are two sets of the limiting bolt 231 and the limiting nut 232 corresponding to each suction cup 24, and there are two limiting grooves 22a.

[0044] It should be noted that based on the embodiment of the limiting groove 22a, the limiting bolt 231 and the limiting nut 232, the number of suction cups 24 can be adaptively increased or decreased according to the size of the outer bag. Specifically, in this embodiment, a quick connector is provided between the flexible hose (not shown) connected to the suction cup 24 and the vacuum pump 6 to facilitate disassembly and installation. The specific structure of the quick connector is the prior art and will not be elaborated here.

[0045] In one embodiment, the adsorption seat 22 is further provided with a guiding groove 22b, and the guiding groove 22b is in the same extending direction as the limiting groove 22a. The base of the suction cup 24 is slidably arranged in the guiding groove 22b.

[0046] In this embodiment, the base of the suction cup 24 is slidably arranged in the guiding groove 22b, and the movement of the suction cup 24 is guided by the guiding groove 22b, which improves the convenience of adjusting the distance between the suction cups 24.

[0047] It should be noted that the inner film conveying structure 4 can be set in the form of two hydraulic cylinders or electric push rods telescoping to send the inner film into the outer bag; or other forms.

[0048] In one embodiment, please refer to Figure 1 and Figure 6 , when the adsorption structure 2 is away from the combination station 11, a film feeding gap 11a is formed at an interval from the combination station 11. The inner film conveying structure 4 includes a movable seat 41 and two clamping arms 42. The movable seat 41 is installed on the frame 1 and is located on the side of the film feeding gap 11a away from the combination station 11, and can approach and move away from the combination station 11. The two clamping arms 42 are installed on the movable seat 41 and are sequentially arranged along the layout direction of the two adsorption structures 2, and can approach and move away from each other along their layout direction.

[0049] In this embodiment, the movable seat 41 drives the two clamping arms 42 to approach and separate from the combination station 11, so that the two clamping arms 42 can extend into the outer bag of the combination station 11 from the film feeding gap 11a. At the same time, the distance between the two clamping arms 42 can be adjusted according to the width of the inner film to expand and clamp inner films of different sizes, further improving the versatility.

[0050] Specifically, in this solution, the driving forms for the two clamping arms 42 to approach and separate from each other are both driven by linear motors. In addition, the moving mode of the movable seat 41 to approach and separate from the combination station 11 is also driven by a linear motor, which is convenient for realizing automation. The bottom of the frame 1 is provided with self-locking rollers.

[0051] In addition, the present invention also provides a woven bag combination device, and the woven bag combination device includes the inner film sleeve bag device described in any one of the above. It should be noted that the detailed structure of the inner film sleeve bag device of the woven bag combination device can refer to the embodiments of the above inner film sleeve bag device, which will not be elaborated here; since the above inner film sleeve bag device is used in the woven bag combination device of the present invention, therefore, the embodiments of the woven bag combination device of the present invention include all the technical solutions of all the embodiments of the above inner film sleeve bag device, and the achieved technical effects are also exactly the same, which will not be elaborated here.

[0052] For a better understanding of the present invention, the following is combined with Figures 1 to 6 to elaborate on the technical solution of the present invention in detail: In this solution, according to the size of the outer bag, the distance between the two adsorption seats 22 in the horizontal direction is adjusted to ensure that the suction cups 24 on the two adsorption seats 22 can exactly adsorb both ends in the width direction of the outer bag; then the two adsorption seats 22 are driven to approach the outer bag located at the combination station 11 at the same time until the suction cups 24 on the two adsorption seats 22 adsorb the upper side of the outer bag; then the two adsorption seats 22 are driven to separate from the combination station 11, so as to open the opening of the outer bag flatly. Then, the two clamping arms 42 are used to expand and clamp the inner film, and the movable seat 41 is moved to feed the inner film into the outer bag through the opening of the outer bag. In this way, this solution can be applicable to woven bags of various sizes and has good versatility.

[0053] The specific embodiments of the present invention described above do not constitute a limitation to the protection scope of the present invention. Any other corresponding changes and deformations made according to the technical concept of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. An inner film bagging device, characterized in that: include: A rack with combined workstations; At least two adsorption structures are installed on the frame and located on the same side of the assembly station. The at least two adsorption structures are used to adsorb the outer bags and can move in the direction of approaching and moving away from the assembly station, and can also move towards and away from each other. A driving structure, mounted on the frame and respectively connected to at least two of the adsorption structures, for driving the adsorption structures to approach and move away from the assembly station, and capable of driving at least two of the adsorption structures to approach and move away from each other; and The inner film conveying structure is arranged on the frame and is used for conveying the inner film into the outer bag after opening.

2. The inner film bagging device according to claim 1, characterized in that: The inner film bagging device further comprises a mounting seat, which is mounted on the frame and can move in a direction close to and away from the assembly station, and the two adsorption structures are mounted on the frame via the mounting seat; The driving structure includes a driving part and an adjusting part. The driving part is installed on the frame and connected to the mounting seat, and is used to drive the mounting seat to approach and move away from the assembly workstation. The adjusting part is installed on the mounting seat and is respectively connected to the two adsorption structures, and is used to drive the two adsorption structures to approach and move away from each other along their layout directions.

3. The inner film bagging device according to claim 2, characterized in that: The mounting seat is provided with an axial hole, the extension direction of the axial hole is parallel to the combined station, the adjustment part includes a driving screw and an adjustment working part, the driving screw is rotatably installed in the axial hole, and the threads at both ends thereof have opposite rotation directions, and the adjustment working part is connected to the driving screw for driving the driving screw to rotate; The adsorption structure has a driving screw hole for the driving screw to pass through. The two adsorption structures are located at two ends of the driving screw and can approach and move away from each other when the driving screw rotates.

4. The inner film bagging device according to claim 3, characterized in that: One of the adsorption structure and the mounting seat is provided with a slider, and the other is provided with a slide groove for the slider to slide, and the extension direction of the slide groove is the same as the extension direction of the shaft hole.

5. The inner film bagging device according to claim 2, characterized in that: The driving part comprises a driving hydraulic cylinder, the cylinder body of which is mounted on the frame and spaced apart from the assembly station, and the hydraulic rod of which is connected to the mounting seat for driving the mounting seat to approach and move away from the assembly station.

6. The inner film bagging device according to claim 1, characterized in that: The adsorption structure comprises an adsorption seat, a limiting part and a plurality of suction cups, wherein the adsorption seat is movably mounted on the frame, the plurality of suction cups are arranged on the adsorption seat and are arranged in sequence along the arrangement direction of the two adsorption seats, the distance between two adjacent suction cups is adjustable, the limiting part is arranged between the adsorption seat and the suction cup, and limits the movement of the suction cup when the distance between the two adjacent suction cups is adjusted to a preset value; The driving structure is respectively connected to the two adsorption seats, and is used to drive the adsorption seats to approach and move away from the combination station, and can drive the two adsorption seats to approach and move away from each other along the arrangement direction thereof.

7. The inner film bagging device according to claim 6, characterized in that: The adsorption seat is provided with a limiting groove, the limiting groove extends along the arrangement direction of the plurality of suction cups, and the base of the suction cup is provided with a connecting hole corresponding to the limiting groove; The limiting portion includes a limiting bolt and a limiting nut. The limiting bolt passes through the connecting hole and the limiting groove in sequence. The limiting nut is screwed on one end of the limiting bolt extending out of the limiting groove.

8. The inner film bagging device according to claim 7, characterized in that: The adsorption seat is further provided with a guide groove, and the extension direction of the guide groove is consistent with that of the limiting groove; The base of the suction cup is slidably arranged in the guide groove.

9. The inner film bagging device according to claim 1, characterized in that: When the adsorption structure is away from the assembly station, a film feeding gap is formed between the adsorption structure and the assembly station; The inner film conveying structure includes a movable seat and two clamping arms. The movable seat is installed on the frame and is located on the side of the film conveying gap away from the assembly station, and can approach and move away from the assembly station. The two clamping arms are installed on the movable seat and are arranged in sequence along the layout direction of the two adsorption structures, and can approach and move away from each other along their layout direction.

10. A woven bag assembly device, characterized in that: It comprises the inner membrane bagging device as described in any one of claims 1-9.

Images