Edge folding and sealing equipment for plastic woven bag

Abstract

The invention discloses plastic woven bag edge folding and sealing equipment which comprises a rack, a feeding device, an edge folding and sealing device and a driving device, the feeding device and the edge folding and sealing device are arranged on the rack side by side, the edge folding and sealing device comprises two rollers, a feeding roller, an edge folding assembly, two sealing assemblies and two limiting assemblies, the two rollers are rotationally arranged on the rack side by side, rotating shafts at one ends of the two rollers are each provided with a first gear, the two first gears are meshed, and a rotating shaft at the other end, close to the feeding device, of the roller is connected with the feeding device through a first belt transmission mechanism; the feeding roller and the edge folding assembly are arranged above the two rollers side by side, and the feeding roller is close to the feeding device and is rotationally connected with the rack. Therefore, the conversion time between the edge folding step and the sealing step can be effectively shortened, the production process is simplified, the production cycle of a single woven bag is greatly shortened, and the overall production efficiency is effectively improved.

Description

Technical Field

[0001] This application relates to the technical field of plastic woven bag processing, and more particularly to a plastic woven bag folding and sealing device. Background Technology

[0002] Plastic woven bags occupy a vital position in the packaging industry due to their unique advantages, with an extremely wide range of applications. Their main raw materials are polyethylene (PE) and polypropylene (PP), which endow woven bags with many excellent properties. They possess good flexibility, allowing them to adapt flexibly to packaging needs in various environments; they have a certain strength and durability, easily bearing various weights of goods; and they also have excellent waterproof and moisture-proof functions, effectively ensuring the quality and safety of the packaged goods. Therefore, plastic woven bags are suitable for packaging various powdery, granular, and lumpy materials, playing an indispensable role in many industries such as agriculture, chemicals, building materials, and food.

[0003] In the production process of plastic woven bags, the sealing process plays a crucial role, but its traditional methods have limitations. Currently, woven bags are generally sealed using two methods: sewing and thermoforming. While sewing can achieve the sealing, it is cumbersome, relying on manual labor or sewing equipment for stitch-by-stitch work, resulting in low sealing efficiency. In contrast, while thermoforming offers some speed improvements, it still faces many challenges. A particularly prominent issue is that the two key steps of folding and sealing are separated in the production process. Typically, woven bags must first be processed by a folding machine before being transferred to a sealing machine for sealing. This transfer process not only significantly increases the complexity of the production process and extends the production cycle of a single woven bag, but also severely restricts the improvement of overall production efficiency. Summary of the Invention

[0004] This application aims to at least partially address one of the technical problems in the related art.

[0005] Therefore, one objective of this application is to provide a plastic woven bag folding and sealing device that can effectively reduce the conversion time between the folding and sealing steps, thereby simplifying the production process. This not only significantly shortens the production cycle of a single woven bag, but also effectively improves the overall production efficiency.

[0006] To achieve the above objectives, a first aspect of this application provides a plastic woven bag folding and sealing device, including a frame, a feeding device, a folding and sealing device, and a driving device. The feeding device and the folding and sealing device are arranged side-by-side on the frame. The folding and sealing device includes two rollers, a feeding roller, a folding assembly, two sealing assemblies, and two limiting assemblies. The two rollers are arranged side-by-side and rotatably on the frame. One end of each roller's shaft is provided with a first gear, and the two first gears mesh with each other. The other end of the roller closest to the feeding device is connected to the feeding device via a first belt drive mechanism. The feeding roller and the folding assembly are arranged side-by-side... Above the two rollers, and with the feeding roller rotatably connected to the frame near the feeding device, a second gear is provided on one end of the shaft of the feeding roller, which meshes with the first gear near the feeding device. The other end of the shaft of the feeding roller is connected to the feeding device via a second belt drive mechanism. Two sealing assemblies are respectively disposed inside corresponding rollers, and the sealing assemblies extend through the rollers. Two limiting assemblies are respectively fixedly disposed on the frame near both ends of the feeding rollers, and the two limiting assemblies are respectively connected to the sealing assemblies near the feeding device. The driving device is disposed on the frame and is connected to the feeding device.

[0007] The plastic woven bag folding and sealing equipment of this application embodiment can effectively reduce the conversion time between the folding and sealing steps, and simplify the production process. This not only greatly shortens the production cycle of a single woven bag, but also effectively improves the overall production efficiency.

[0008] In addition, the plastic woven bag folding and sealing equipment proposed in this application may also have the following additional technical features: Furthermore, the feeding device includes a first belt conveyor and a pressure roller, wherein the first belt conveyor and the roller are arranged side by side on the frame, and one end of the conveying roller shaft of the first belt conveyor is connected to the output end of the drive device, and the other end of the conveying roller shaft of the first belt conveyor is connected to the other end shaft of the roller near the first belt conveyor through the first belt drive mechanism; the pressure roller is located above the output end of the first belt conveyor and is rotatably arranged on the frame, and one end of the pressure roller shaft is connected to the other end shaft of the feeding roller through the second belt drive mechanism.

[0009] Further, the folding assembly includes a U-shaped frame, an arc-shaped guide plate, a baffle, a slider, two guide rods, a support plate, and a handle bolt. The U-shaped frame is fixedly mounted on the machine frame, with its opening facing the roller below the feeding roller. The arc-shaped guide plate is fixedly mounted on the U-shaped frame, with its protruding portion facing between the two rollers. The baffle is fixedly mounted on the inner wall of the U-shaped frame, with one end extending towards the roller below the feeding roller. The slider is slidably mounted within the U-shaped frame. The two guide rods are symmetrically and perpendicularly mounted on the slider, with their top ends movably penetrating the U-shaped frame and fixedly connected to the support plate. The handle bolt is threaded through the support plate and rotatably connected to the U-shaped frame.

[0010] Furthermore, the sealing assembly includes a partition, a movable plate, two sets of columns, two sets of springs, a sealing plate, and a transducer. The partition and the movable plate are arranged side-by-side inside the roller, with the partition fixedly connected to the roller and the movable plate movably connected to the roller. The two sets of columns are symmetrically and vertically fixedly arranged on the movable plate, with the top ends of each set of columns movably penetrating through the partition. The two sets of springs are respectively sleeved on corresponding columns, with one end of each spring fixedly connected to the movable plate and the other end fixedly connected to the partition. The sealing plate is fixedly arranged on the bottom wall of the movable plate, with its bottom end penetrating through the roller. The transducer is arranged on the movable plate and connected to an external ultrasonic generator via a cable.

[0011] Furthermore, the limiting assembly includes an arc-shaped limiting plate and a drive rod, wherein the end of the arc-shaped limiting plate near the feeding roller is fixedly mounted on the frame; the drive rod is vertically fixedly mounted on the bottom wall of the movable plate, and the top end of the drive rod movably extends through the roller and intermittently contacts and connects with the arc-shaped limiting plate.

[0012] Furthermore, the aforementioned plastic woven bag folding and sealing equipment also includes a discharge device, which comprises a second belt conveyor, an arc-shaped guide plate, a drive gear, a driven gear, and two transmission gears. The second belt conveyor is mounted on the frame and located below the first belt conveyor. The arc-shaped guide plate is fixedly mounted on the frame, with one end extending below the roller away from the first belt conveyor and the other end extending above the input end of the second belt conveyor. The drive gear is connected to the other end of the conveyor roller shaft of the first belt conveyor. The driven gear is connected to one end of the conveyor roller shaft of the second belt conveyor. The two transmission gears are rotatably disposed between the drive gear and the driven gear, and the two transmission gears mesh with each other, with one transmission gear meshing with the drive gear and the other transmission gear meshing with the driven gear.

[0013] Compared with the prior art, the beneficial effects of this application are: it can effectively reduce the conversion time between the folding and sealing steps, and simplify the production process. This not only significantly shortens the production cycle of a single woven bag, but also effectively improves the overall production efficiency.

[0014] 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

[0015] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein: Figure 1 A three-dimensional sealing device for folding and sealing plastic woven bags according to an embodiment of this application. Figure 1 ; Figure 2 A three-dimensional sealing device for folding and sealing plastic woven bags according to an embodiment of this application. Figure 2 ; Figure 3 This is a partial structural diagram of a plastic woven bag folding and sealing device according to an embodiment of this application. Figure 1 ; Figure 4 This is a partial structural diagram of a plastic woven bag folding and sealing device according to an embodiment of this application. Figure 2 ; Figure 5 This is a schematic diagram of the feeding device, the folding and sealing device, and the discharging device according to an embodiment of this application; Figure 6 This is a partial structural schematic diagram of a folding and sealing device according to an embodiment of this application; Figure 7 This is a schematic diagram of the structure of a sealing assembly according to an embodiment of this application. Figure 1 ; Figure 8 This is a schematic diagram of the structure of a sealing assembly according to an embodiment of this application. Figure 2 .

[0016] As shown in the figure: 10. Frame; 20. Feeding device; 21. First belt conveyor; 22. Pressure roller; 30. Folding and sealing device; 31. Roller; 32. Feeding roller; 33. Folding assembly; 331. U-shaped frame; 332. Arc-shaped guide plate; 333. Baffle; 334. Slider; 335. Guide rod; 336. Support plate; 337. Handle bolt; 34. Sealing assembly; 341. Partition plate; 342. Movable plate; 343. Column 344. Spring; 345. Sealing plate; 346. Transducer; 35. Limiting assembly; 351. Arc-shaped limiting plate; 352. Drive rod; 301. First gear; 302. First belt drive mechanism; 303. Second gear; 304. Second belt drive mechanism; 40. Drive device; 50. Discharge device; 51. Second belt conveyor; 52. Arc-shaped guide plate; 53. Drive gear; 54. Driven gear; 55. Transmission gear. Detailed Implementation

[0017] 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 intended to explain this application, and should not be construed as limiting this application.

[0018] The following description, in conjunction with the accompanying drawings, describes a plastic woven bag edge-folding and sealing device according to an embodiment of this application.

[0019] like Figures 1-8 As shown, the plastic woven bag folding and sealing equipment of this application embodiment includes a frame 10, a feeding device 20, a folding and sealing device 30, and a driving device 40.

[0020] The feeding device 20 and the folding and sealing device 30 are arranged side by side on the frame 10. The feeding device 20 is used to feed the woven bag to be sealed to the folding and sealing device 30. The folding and sealing device 30 may include two rollers 31, a feeding roller 32, a folding assembly 33, two sealing assemblies 34, and two limiting assemblies 35.

[0021] Two rollers 31 are arranged side by side and rotate on the frame 10. One end of each roller 31 is provided with a first gear 301, and the two first gears 301 mesh with each other. The other end of the roller 31 closest to the feeding device 20 is connected to the feeding device 20 through a first belt drive mechanism 302.

[0022] The feeding roller 32 and the folding assembly 33 are arranged side by side above the two rollers 31. The feeding roller 32 is rotatably connected to the frame 10 near the feeding device 20. A second gear 303 is mounted on one end of the shaft of the feeding roller 32, meshing with a first gear 301 near the feeding device 20. The other end of the shaft is connected to the feeding device 20 via a second belt drive mechanism 304. The feeding roller 32, in conjunction with the rollers 31 below it, conveys the woven bag to be sealed to the folding assembly 33. The folding assembly 33 blocks the end of the woven bag to be sealed, causing the end to bend downwards.

[0023] Two sealing components 34 are respectively installed inside the corresponding rollers 31, and the sealing components 34 extend through the rollers 31. Two limiting components 35 are respectively fixedly installed on the frame 10 near the two ends of the feeding roller 32, and the two limiting components 35 are respectively connected to the sealing components 34 near the feeding device 20. The two sealing components 34 are used to seal the folded ends of the braid.

[0024] The drive unit 40 is mounted on the frame 10 and is connected to the feeding device 20. The drive unit 40 is used to provide power to the feeding device 20.

[0025] It should be noted that the driving device 40 described in this embodiment may be a drive motor.

[0026] Specifically, when performing the folding and sealing operation of plastic woven bags, the relevant personnel first need to place the woven bag to be sealed flat on the feeding device 20. Then, the drive device 40 is started, which provides power to the feeding device 20, pushing the woven bag to be sealed towards the area between the feeding roller 32 and the roller 31 below the feeding roller 32.

[0027] While the feeding device 20 is operating, it drives the adjacent roller 31 to rotate via the first belt drive mechanism 302. Since each of the two rollers 31 has a meshing first gear 301 mounted on one end of its shaft, the rotating roller 31 drives the other roller 31 to rotate in the opposite direction via the meshing of these gears. These two opposing rotating rollers 31 then drive their corresponding sealing components 34 to move synchronously.

[0028] During the rotation of the roller 31, the first gear 301 at one end meshes with the second gear 303 at one end of the feeding roller 32, thereby driving the feeding roller 32 to rotate synchronously. In this way, the feeding roller 32 and the roller 31 below it rotate in opposite directions, pushing the unsealed end of the woven bag to be sealed from the feeding device 20 toward the folding assembly 33.

[0029] When the end of the woven bag to be sealed reaches the hemming assembly 33, the hemming assembly 33 activates and blocks it. Under the action of the blocking force, the end of the woven bag to be sealed bends and folds downward. As the two rollers 31 continue to rotate in opposite directions, they convey one end of the folded woven bag downward between the two rollers 31.

[0030] At the same time, the two rotating rollers 31 drive their respective sealing components 34 to rotate synchronously. When the folded edge of the woven bag passes between the two rollers 31, the two sealing components 34 just rotate to the opposite position (i.e., face-to-face position). At this time, the two sealing components 34 quickly seal the folded edge of the woven bag.

[0031] As the two rollers 31 continue to rotate, the sealed woven bags are smoothly conveyed out. The entire process is seamlessly integrated, greatly reducing the transition time between the folding and sealing steps and effectively simplifying the production process. This not only significantly shortens the production cycle of a single woven bag but also greatly improves overall production efficiency.

[0032] To clearly illustrate the previous embodiment, in one embodiment of this application, as follows: Figure 1 As shown, the feeding device 20 may include a first belt conveyor 21 and a pressure roller 22. The first belt conveyor 21 and the roller 31 are arranged side by side on the frame 10. One end of the conveyor roller shaft of the first belt conveyor 21 is connected to the output end of the drive device 40, and the other end of the conveyor roller shaft of the first belt conveyor 21 is connected to the other end of the roller 31 near the first belt conveyor 21 through a first belt drive mechanism 302. It should be noted that the first belt conveyor 21 described in this embodiment consists of two first conveyor rollers and a first conveyor belt. The two first conveyor rollers are arranged side by side and rotatably on the frame 10, and the first conveyor belt is sleeved on the two first conveyor rollers.

[0033] It should be noted that the first belt drive mechanism 302 described in this embodiment may include two first pulleys and a first belt. One of the first pulleys is connected to the other end of the conveyor roller shaft of the first belt conveyor 21, and the other first pulley is connected to the other end of the roller 31 near the first belt conveyor 21. The first belt is sleeved on the two first pulleys.

[0034] The pressure roller 22 is located above the output end of the first belt conveyor 21 and is rotatably mounted on the frame 10. One end of the shaft of the pressure roller 22 is connected to the other end of the shaft of the feeding roller 32 through the second belt drive mechanism 304.

[0035] It should be noted that the second belt drive mechanism 304 described in this embodiment may include two second pulleys and a second belt, one of which is connected to the other end of the shaft of the feeding roller 32, and the other second pulley is connected to one end of the shaft of the pressure roller 22. The second belt is sleeved on the two second pulleys.

[0036] Understandably, the operator can control the drive unit 40 to drive the first belt conveyor 21 to move and transport the plastic woven bags to be sealed above it to the folding and sealing device 30. At the same time, the moving first belt conveyor 21 drives the roller 31 close to the first belt conveyor 21 to rotate through the first belt drive mechanism 302.

[0037] During rotation, the first gear 301 at one end of roller 31 meshes with the second gear 303 at one end of feed roller 32, thereby driving feed roller 32 to rotate synchronously. In this way, the rotating feed roller 32 drives pressure roller 22 to rotate synchronously in the same direction via the second belt drive mechanism 304. Pressure roller 22 presses the woven bag to prevent it from shifting during transport, while feed roller 32 assists the woven bag in moving forward, ensuring that the woven bag accurately enters the folding and sealing device 30.

[0038] Furthermore, in one embodiment of this application, such as Figure 4 and Figure 6 As shown, the folding assembly 33 may include a U-shaped frame 331, an arc-shaped guide plate 332, a baffle 333, a slider 334, two guide rods 335, a support plate 336, and a handle bolt 337.

[0039] The U-shaped frame 331 is fixedly mounted on the frame 10, with its opening facing the roller 31 below the feeding roller 32. The arc-shaped guide plate 332 is fixedly mounted on the U-shaped frame 331, with its protruding portion facing between the two rollers 31. The baffle 333 is fixedly mounted on the inner wall of the U-shaped frame 331, with one end of the baffle 333 extending toward the roller 31 below the feeding roller 32.

[0040] The slider 334 is slidably mounted inside the U-shaped frame 331. Two guide rods 335 are symmetrically and vertically mounted on the slider 334, and the top ends of the two guide rods 335 movably pass through the U-shaped frame 331 and are fixedly connected to the support plate 336. The handle bolt 337 is threaded through the support plate 336 and rotatably connected to the U-shaped frame 331.

[0041] In this embodiment of the application, in order to facilitate the movement of the woven bag toward the interior of the U-shaped frame 331 when the edge of the woven bag comes into contact with the baffle 333, the bottom end of the baffle 333 can be designed to have a certain curvature (i.e., bend downward).

[0042] Understandably, when the plastic woven bag is conveyed to the area below the feeding roller 32, it continues to move forward under the push of the feeding roller 32. When the edge of the woven bag contacts the baffle 333, the edge of the woven bag gradually moves into the U-shaped frame 331 under the guidance of the baffle 333, until the edge of the woven bag abuts against the slider 334. As the feeding roller 32 continues to convey the plastic woven bag, the plastic woven bag bends and folds downward along the arc edge of the arc guide plate 332.

[0043] If the degree of folding needs to be adjusted, the support plate 336 can be moved up and down by rotating the handle bolt 337, which in turn drives the guide rod 335 and the slider 334 to slide within the U-shaped frame 331, changing the relative position of the slider 334 and the edge of the woven bag, thereby adjusting the degree of folding.

[0044] Furthermore, in one embodiment of this application, such as Figure 8 As shown, the sealing assembly 34 may include a partition 341, a movable plate 342, two sets of columns 343, two sets of springs 344, a sealing plate 345, and a transducer 346.

[0045] The partition plate 341 and the movable plate 342 are arranged side by side inside the roller 31, with the partition plate 341 fixedly connected to the roller 31 and the movable plate 342 movably connected to the roller 31. Two sets of uprights 343 are symmetrically and vertically fixedly arranged on the movable plate 342, and the tops of the two sets of uprights 343 respectively movably pass through the partition plate 341. Each set of uprights 343 may include two uprights 343 arranged side by side.

[0046] Two sets of springs 344 are respectively sleeved on the corresponding columns 343, and one end of the spring 344 is fixedly connected to the movable plate 342, and the other end of the spring 344 is fixedly connected to the partition plate 341.

[0047] The sealing plate 345 is fixedly installed on the bottom wall of the movable plate 342, and the bottom end of the sealing plate 345 extends through the roller 31. The transducer 346 is installed on the movable plate 342, and the transducer 346 is connected to an external ultrasonic generator (not shown in the figure) via a cable.

[0048] As a possible alternative, in order to ensure that the sealing plate 345 can fully receive the ultrasonic vibration generated by the transducer 346, elastic rubber pads (not shown in the figure) can also be fixedly installed inside the roller 31 and below the four corners of the movable plate 342.

[0049] Furthermore, in one embodiment of this application, such as Figure 4 and Figure 6 As shown, the limiting assembly 35 may include an arc-shaped limiting plate 351 and a drive rod 352. The end of the arc-shaped limiting plate 351 near the feeding roller 32 is fixedly mounted on the frame 10. The drive rod 352 is vertically fixedly mounted on the bottom wall of the movable plate 342, and the top end of the drive rod 352 extends through the roller 31 and intermittently contacts and abuts against the arc-shaped limiting plate 351.

[0050] Specifically, as the folded woven bag continues to move under the drive of the roller 31, when the drive rod 352 rotates with the roller 31 and comes into contact with the arc-shaped limiting plate 351, the drive rod 352 is forced to push the movable plate 342, causing the sealing plate 345 to move inward toward the roller 31. At the same time, the movable plate 342 compresses the spring 344. This design effectively prevents the sealing plate 345 from acting on the woven bag body and causing damage to the woven bag body when the feeding roller 32 and the roller 31 below it are conveying the woven bag.

[0051] When the drive rod 352 disengages from the arc-shaped limiting plate 351, the drive rod 352 is released from its limiting position and extends out of the roller 31 under the counterforce of the spring 344. The sealing plate 345 moves with the roller 31 and presses against the folded edge of the woven bag. At this time, the transducer 346 generates ultrasonic vibrations under the action of the external ultrasonic generator. The high-frequency vibration of the ultrasonic waves acts on the sealing plate 345, causing the plastic molecules at the folded edge of the woven bag to rapidly generate heat through friction, thereby melting and fusing the plastic together to achieve the purpose of sealing. During the sealing process, the spring 344 always provides a certain pressure to ensure that the sealing plate 345 is in close contact with the woven bag, ensuring the sealing quality.

[0052] In one embodiment of this application, such as Figures 1-3 and Figure 5 As shown, the above-mentioned plastic woven bag folding and sealing equipment may also include a discharge device 50, which may include a second belt conveyor 51, an arc-shaped guide plate 52, a drive gear 53, a driven gear 54, and two transmission gears 55.

[0053] The second belt conveyor 51 is mounted on the frame 10 and located below the first belt conveyor 21. The arc-shaped guide plate 52 is fixedly mounted on the frame 10, with one end of the arc-shaped guide plate 52 extending below the roller 31 away from the first belt conveyor 21, and the other end of the arc-shaped guide plate 52 extending above the input end of the second belt conveyor 51.

[0054] It should be noted that the second belt conveyor 51 described in this embodiment may include two second conveying rollers and a second conveyor belt, wherein the two second conveying rollers are arranged side by side and rotated on the frame 10, and the second conveyor belt is sleeved on the two second conveying rollers.

[0055] The driving gear 53 is connected to the other end of the conveyor roller shaft of the first belt conveyor 21, and the driven gear 54 is connected to one end of the conveyor roller shaft of the second belt conveyor 51. Two transmission gears 55 are rotatably disposed between the driving gear 53 and the driven gear 54, and the two transmission gears 55 mesh with each other, with one transmission gear 55 meshing with the driving gear 53 and the other transmission gear 55 meshing with the driven gear 54.

[0056] Understandably, as the plastic woven bag with the folded and sealed edges is continuously rotated by the roller 31, it is conveyed to the area below the roller 31. At this point, the woven bag slides down the arc-shaped guide plate 52 under the action of gravity and enters the second belt conveyor 51. The drive gear 53 at the other end of the conveyor roller shaft of the first belt conveyor 21 rotates with the conveyor roller, driving the driven gear 54 to rotate through two transmission gears 55, which in turn causes the conveyor roller of the second belt conveyor 51 to rotate, conveying the processed woven bag to a designated location for collection or further processing, thereby realizing the automated production process of folding and sealing the plastic woven bag.

[0057] In summary, the plastic woven bag folding and sealing equipment of this application embodiment can effectively reduce the conversion time between the folding and sealing steps, thereby simplifying the production process. This not only significantly shortens the production cycle of a single woven bag, but also effectively improves the overall production efficiency.

[0058] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0059] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are 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. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0060] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A plastic woven bag edge-folding and sealing device, characterized in that, It includes a frame (10), a feeding device (20), a folding and sealing device (30), and a drive device (40), wherein, The feeding device (20) and the folding and sealing device (30) are arranged side by side on the frame (10). The folding and sealing device (30) includes two rollers (31), a feeding roller (32), a folding assembly (33), two sealing assemblies (34), and two limiting assemblies (35). Two rollers (31) are arranged side by side and rotated on the frame (10). One end of each roller (31) is provided with a first gear (301), and the two first gears (301) mesh with each other. The other end of the roller (31) closer to the feeding device (20) is connected to the feeding device (20) through a first belt drive mechanism (302). The feeding roller (32) and the folding assembly (33) are arranged side by side above the two rollers (31), and the feeding roller (32) is rotatably connected to the frame (10) near the feeding device (20). A second gear (303) is provided on one end of the shaft of the feeding roller (32), and the second gear (303) meshes with the first gear (301) near the feeding device (20). The other end of the shaft of the feeding roller (32) is connected to the feeding device (20) through a second belt drive mechanism (304). The two sealing components (34) are respectively disposed in the corresponding rollers (31), and the sealing components (34) extend through the rollers (31). The two limiting components (35) are respectively fixedly mounted on the frame (10) near the two ends of the feeding roller (32), and the two limiting components (35) are respectively connected to the sealing component (34) near the feeding device (20); The drive device (40) is mounted on the frame (10) and is connected to the feeding device (20).

2. The plastic woven bag folding and sealing equipment according to claim 1, characterized in that, The feeding device (20) includes a first belt conveyor (21) and a pressure roller (22), wherein, The first belt conveyor (21) and the roller (31) are arranged side by side on the frame (10), and one end of the conveying roller shaft of the first belt conveyor (21) is connected to the output end of the drive device (40), and the other end of the conveying roller shaft of the first belt conveyor (21) is connected to the other end of the roller (31) near the first belt conveyor (21) through the first belt drive mechanism (302); The pressure roller (22) is located above the output end of the first belt conveyor (21) and is rotatably mounted on the frame (10). One end of the shaft of the pressure roller (22) is connected to the other end of the shaft of the feeding roller (32) through the second belt drive mechanism (304).

3. The plastic woven bag folding and sealing equipment according to claim 1, characterized in that, The folding assembly (33) includes a U-shaped frame (331), an arc-shaped guide plate (332), a baffle (333), a slider (334), two guide rods (335), a support plate (336), and a handle bolt (337), wherein, The U-shaped frame (331) is fixedly mounted on the frame (10), and the opening of the U-shaped frame (331) faces the roller (31) below the feeding roller (32). The arc-shaped guide plate (332) is fixedly mounted on the U-shaped frame (331), and the protruding part of the arc-shaped guide plate (332) faces between the two rollers (31); The baffle (333) is fixedly installed on the inner side wall of the U-shaped frame (331), and one end of the baffle (333) extends toward the roller (31) below the feeding roller (32); The slider (334) is slidably disposed within the U-shaped frame (331); The two guide rods (335) are symmetrically and vertically arranged on the slider (334), and the top ends of the two guide rods (335) can move through the U-shaped frame (331) and are fixedly connected to the support plate (336); The handle bolt (337) is threaded through the support plate (336) and rotatably connected to the U-shaped frame (331).

4. The plastic woven bag folding and sealing equipment according to claim 1, characterized in that, The sealing assembly (34) includes a partition (341), a movable plate (342), two sets of columns (343), two sets of springs (344), a sealing plate (345), and a transducer (346), wherein, The partition (341) and the movable plate (342) are arranged side by side inside the roller (31), and the partition (341) is fixedly connected to the roller (31), while the movable plate (342) is movably connected to the roller (31). The two sets of columns (343) are symmetrically and vertically fixed on the movable plate (342), and the tops of the two sets of columns (343) respectively movably penetrate the partition plate (341). The two sets of springs (344) are respectively sleeved on the corresponding columns (343), and one end of the spring (344) is fixedly connected to the movable plate (342), and the other end of the spring (344) is fixedly connected to the partition plate (341); The sealing plate (345) is fixedly installed on the bottom wall of the movable plate (342), and the bottom end of the sealing plate (345) extends through the roller (31). The transducer (346) is mounted on the movable plate (342) and is connected to an external ultrasonic generator via a cable.

5. The plastic woven bag folding and sealing equipment according to claim 4, characterized in that, The limiting component (35) includes an arc-shaped limiting plate (351) and a drive rod (352), wherein, The arc-shaped limiting plate (351) is fixedly mounted on the frame (10) near the end of the feeding roller (32); The drive rod (352) is vertically fixed on the bottom wall of the movable plate (342), and the top end of the drive rod (352) moves through the roller (31) and intermittently contacts and connects with the arc-shaped limiting plate (351).

6. The plastic woven bag folding and sealing equipment according to claim 2, characterized in that, It also includes a discharge device (50), which comprises a second belt conveyor (51), an arc-shaped guide plate (52), a drive gear (53), a driven gear (54), and two transmission gears (55), wherein, The second belt conveyor (51) is mounted on the frame (10) and located below the first belt conveyor (21); The arc-shaped guide plate (52) is fixedly mounted on the frame (10), and one end of the arc-shaped guide plate (52) extends to the bottom of the roller (31) away from the first belt conveyor (21), and the other end of the arc-shaped guide plate (52) extends to the top of the input end of the second belt conveyor (51). The drive gear (53) is connected to the other end of the conveyor roller shaft of the first belt conveyor (21); The driven gear (54) is connected to one end of the conveyor roller shaft of the second belt conveyor (51); Two transmission gears (55) are rotatably disposed between the driving gear (53) and the driven gear (54), and the two transmission gears (55) mesh with each other, one of the transmission gears (55) meshing with the driving gear (53) and the other transmission gear (55) meshing with the driven gear (54).

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