Fully automatic ton bag sealing device and method

Abstract

The application introduces a kind of automatic ton bag binding device and method, the device includes adjusting support mechanism, mounting bracket, closing mechanism and binding mechanism;Inner slide seat and outer slide seat are nested, one cylinder and two cylinders are double-stroke connected, and the sequence stroke action is matched with the push cylinder, the whole double-stroke cylinder is abandoned, the total length of mechanism is greatly shortened, and the equipment floor space is reduced;The two cylinders of closing mechanism are connected by connecting plate and guide wheel to form lateral support guide, avoid piston rod load deformation, effectively reduce the failure rate of cylinder, adapt to ton bag continuous binding working condition;Adjusting support mechanism realizes the installation mode of multiple binding mechanism, is suitable for various structure assembly line operation equipment barrier-free connection, and has strong universality;The mouth clamping arm cooperates with the electric binder, and the inner bag and the outer bag do not need to rotate to realize the mouth binding quickly, and the wire binding is fast and firm, which greatly improves the operation efficiency.

Description

Technical Field

[0001] This invention relates to the field of metal smelting product packaging technology, and in particular to a fully automatic ton bag sealing device and method. Background Technology

[0002] BOOM (Monthly Barrel) bags are large-capacity transport packaging containers widely used in the metal powder smelting industry. When filled, they can weigh several tons. Metal powders are characterized by high specific gravity, good flowability, fine particles, and easy dust generation, placing high demands on the sealing performance, strength, and operational safety of their packaging. The sealing and tying process of BOOM bags in metal powder production enterprises mainly faces the following technical challenges and deficiencies: 1. In most metal powder production enterprises, the bag sealing operation after the ton bag is filled still relies on manual labor; due to the large opening and heavy weight of the ton bag, manual operation has problems such as low operation efficiency, uneven binding force, and poor sealing reliability. 2. Many metal powder ton bags adopt a double-layer structure of outer bag + inner bag to enhance moisture-proof and leakage-proof performance. The inner bag opening needs to be tied tightly independently. The existing flat-mouth sewing equipment on the market can only sew the outer bag opening and cannot effectively handle the sealing of the inner bag. In addition, the flat-mouth seal is irreversible. When unloading, the sewing thread needs to be cut to open the bag opening, which affects the unloading efficiency. 3. In recent years, the industry has begun to explore automated equipment for sealing ton bags. Some solutions use a feeding pipe to rotate the inner bag filling port, twisting the bag opening into a rope-like shape before sealing. This type of equipment requires multiple complex modules, such as a bag opening twisting mechanism and a bag opening clamping mechanism, to work together. In a metal powder dust environment, the reliability and service life of the transmission components are severely challenged, and the equipment is expensive and difficult to maintain. Moreover, most existing automated sealing equipment is designed as an independent workstation, which makes it difficult to form a smooth assembly line operation with the existing ton bag filling, conveying, and weighing processes of metal powder production enterprises, thus limiting the improvement of overall packaging efficiency. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a fully automatic ton bag sealing device and method that can meet the requirements of assembly line equipment connection and improve production efficiency.

[0004] The technical solution adopted in this invention is: A fully automatic ton bag sealing device includes an adjusting support mechanism, a mounting frame, a sealing mechanism, and a binding mechanism; The adjustment support mechanism is correspondingly set to the ton bag filling machine; the mounting frame is set on the adjustment support mechanism; the mounting frame is a frame structure welded with rods, and a slide rail is set parallel to the lower side of the top frame of the mounting frame; The closing mechanism includes an outer slide block, a first-stage cylinder, a second-stage cylinder, a clamping cylinder, a U-shaped connecting rod, and a mouth-closing clamping arm. The outer slide block is equipped with a slider that matches the slide rail, and the outer slide block is slidably mounted within the mounting frame via the slider. The first-stage cylinder is located in the lower center of the mounting frame, and the second-stage cylinder is correspondingly mounted on the outer slide block. The first-stage cylinder is connected to the second-stage cylinder via a double-stroke connecting rod. The rear ends of the two clamping cylinders are respectively hinged to the outer sides of the outer slide block via symmetrical supports, and the U-shaped connecting rods are respectively hinged to the piston rod ends of the clamping cylinders via rotating shafts. The four mouth-closing clamping arms are symmetrically arranged in pairs, and the rear ends of each mouth-closing clamping arm are rotatably mounted on the upper and lower sides of the outer slide block via shaft retainers. The rear ends of the two mouth-closing clamping arms on the same side are respectively fixedly connected to the two ends of the U-shaped connecting rod on the corresponding side. The binding mechanism includes an inner slide, an electric binding device, and a push cylinder; the inner slide is slidably connected to the mounting frame via a slider and is located inside the outer slide; the electric binding device is located on the middle of the inner slide between the two sets of clamping arms, and the center of the electric binding device coincides with the center of the two sets of clamping arms; the rear end of the push cylinder is fixed on the mounting frame, and the front end of the piston rod of the push cylinder is connected to the electric binding device.

[0005] Specifically, mounting blocks are provided on both ends of the double-stroke connecting rod connecting the first-stage cylinder and the second-stage cylinder, and guide wheels that match the guide rods on the first-stage cylinder and the second-stage cylinder are provided on the mounting blocks.

[0006] Specifically, the U-shaped connecting rod is a two-section structure that is broken in the middle, with the break points hinged at both ends of the rotating shaft.

[0007] Specifically, the adjustment support mechanism includes a support base and a screw jack; the support base is a floor-mounted frame structure that matches the mounting frame, and the lower end of the support base column is provided with feet, through which bolts are used to fix the support base to the ground; the lower end of the mounting frame column is connected to the support base column one by one; the screw jack is located in the middle of the support base, and the output flange of the screw jack is connected to the mounting frame.

[0008] Specifically, the adjustment support mechanism includes a vertical adjustment suspension and a horizontal adjustment suspension; the vertical adjustment suspension is welded and installed above the middle of the mounting frame, the horizontal adjustment suspension is height-adjustable and installed in front of the vertical adjustment suspension, and the horizontal adjustment suspension is adjustable front and rear and installed on the crossbeam of the ton bag filling machine frame.

[0009] More specifically, both the vertically adjustable suspension and the horizontally adjustable suspension include a vertical support frame and reinforcing ribs inclined on both sides; the vertical support frame of the vertically adjustable suspension has long sliding holes on its two side columns, and the reinforcing ribs of the vertically and horizontally adjustable suspensions are arranged in parallel. The lower ends of the two reinforcing ribs of the vertically adjustable suspension are respectively connected to the two sides of the mounting frame; the two side columns of the horizontally adjustable suspension are connected to the two side columns of the vertically adjustable suspension by bolts set in the long sliding holes. The horizontally adjustable suspension also includes a top frame set between its vertical support frame and the upper ends of the reinforcing ribs, and back bars corresponding to the two sides of the top frame. Long sliding holes are set on both sides of the top frame and the back bars. The horizontally adjustable suspension is located on the lower side of the frame crossbeam of the ton bag filling machine, and the back bars are respectively set on the upper side of the frame crossbeam of the ton bag filling machine corresponding to the two sides of the top frame. The back bars and the top frame are connected by bolts set in the long sliding holes to set the sealing device on the frame crossbeam of the ton bag filling machine.

[0010] More specifically, the vertical support frames of the vertical adjustable suspension and the horizontal adjustable suspension, the two side pillars of the vertical support frame, the two side sides of the top frame of the horizontal adjustable suspension, and the back bar are all made of U-shaped channel steel.

[0011] A fully automatic method for sealing ton bags, the specific steps of which are as follows: S1: Based on the location of the ton bag filling machine to be matched, place the support base frame in a suitable position and fix the support base frame with bolts through the foot anchors; based on the height of the ton bag opening on the ton bag filling machine, adjust the height of the mounting frame through the screw jack so that the electric strapping device corresponds to the point where the ton bag opening needs to be tied. S2: In the initial state, the piston rod of the clamping cylinder is in the retracted state, so that the front ends of the two sets of clamping arms open into a V shape; S3: The first and second cylinders operate simultaneously, and the piston rod extends and moves synchronously through the double-stroke connecting rod to drive the outer slide block to move forward along the slide rail and approach the ton bag. At this time, the two sets of drawstring clamping arms move to the position where the ton bag opening is completely covered. S4: The two clamping cylinders move, pushing the U-shaped connecting rod to retract the front ends of the two sets of clamping arms. The cylinder returns to its original position, and the two sets of clamping arms bring the bag openings of the ton bag back. S5: The push cylinder moves, the inner slide moves forward along the slide rail, the electric strapping device pushes forward, the electric strapping device head and the two sets of clamping arms completely gather the bag mouth of the ton bag and then automatically wrap the binding wire around the bag mouth of the ton bag. After the sealing operation is completed, the push cylinder returns to retract the strapping mechanism. S6: The return stroke of the two clamping cylinders opens the two sets of clamping arms, and the return stroke of the second-stage cylinder retracts the closing mechanism.

[0012] A fully automatic method for sealing ton bags, the specific steps of which are as follows: S1: Based on the dimensions of the frame beam of the ton bag filling machine, adjust the front and rear installation positions of the horizontal adjustment suspension on the frame beam of the ton bag filling machine to ensure that the strokes of the first and second cylinders of the closing mechanism push the binding clamping arm to a position that can include the opening of the ton bag; adjust the installation height of the vertical adjustment suspension on the horizontal adjustment suspension according to the height of the ton bag binding position. S2: In the initial state, the piston rod of the clamping cylinder is in the retracted state, so that the front ends of the two sets of clamping arms open into a V shape; S3: The first and second cylinders operate simultaneously, and the piston rod extends and moves synchronously through the double-stroke connecting rod to drive the outer slide block to move forward along the slide rail and approach the ton bag. At this time, the two sets of drawstring clamping arms move to the position where the ton bag opening is completely covered. S4: The two clamping cylinders move, pushing the U-shaped connecting rod to retract the front ends of the two sets of clamping arms. The cylinder returns to its original position, and the two sets of clamping arms bring the bag openings of the ton bag back. S5: The push cylinder moves, the inner slide moves forward along the slide rail, the electric strapping device pushes forward, the electric strapping device head and the two sets of clamping arms completely gather the bag mouth of the ton bag and then automatically wrap the binding wire around the bag mouth of the ton bag. After the sealing operation is completed, the push cylinder returns to retract the strapping mechanism. S6: The return stroke of the two clamping cylinders opens the two sets of clamping arms, and the return stroke of the second-stage cylinder retracts the closing mechanism.

[0013] Due to the adoption of the technical solution described above, the present invention has the following advantages: This invention employs a nested installation of inner and outer sliding seats, a double-stroke connection between a first-stage cylinder and a second-stage cylinder, and a sequential stroke action coordinated with the pushing cylinder. This eliminates the need for an integral double-stroke cylinder, significantly shortening the overall length of the mechanism and reducing the space occupied by the equipment. The two cylinders of the closing mechanism are connected by a connecting plate and a guide wheel to form lateral support and guidance, preventing piston rod deformation under load and effectively reducing the cylinder failure rate. It is suitable for continuous ton bag binding operations. The adjustable support mechanism enables the installation of multiple binding mechanisms, allowing for seamless connection with various structural assembly line equipment and strong versatility. The binding clamping arms work in conjunction with the electric strapping device, allowing for quick binding of the inner and outer bags without rotation. Furthermore, the centers of the four binding clamping arms coincide with the center of gravity of the electric strapping device, ensuring the smallest possible diameter after the bag is closed. After binding with wire, the binding is fast and secure, greatly improving work efficiency. Attached Figure Description

[0014] Figure 1 This is an overall schematic diagram of the sealing device and the ton bag filling machine in Embodiment 1 of the present invention.

[0015] Figure 2 This is an overall schematic diagram of the sealing device in the retracted state of Embodiment 1.

[0016] Figure 3 This is an overall schematic diagram of the sealing device of Embodiment 2 of the present invention installed on a ton bag filling machine.

[0017] Figure 4 This is an overall schematic diagram of the sealing device of Embodiment 2 of the present invention in the retracted state.

[0018] Figure 5 This is a schematic diagram of the closing mechanism and the binding mechanism of the present invention in their initial state.

[0019] Figure 6 This is a schematic diagram of the closing mechanism and binding mechanism of the present invention in the state of closing.

[0020] Figure 7 A schematic diagram showing the connection between the first-stage cylinder and the second-stage cylinder in their extended states according to the present invention.

[0021] In the diagram: 1-Adjustable support mechanism, 11-Support base frame, 12-Screw jack, 13-Vertical adjustable suspension, 14-Horizontal adjustable suspension, 15-Vertical support frame, 16-Reinforcing rib, 17-Back bar, 2-Mounting frame, 21-Slide rail, 3-Closing mechanism, 31-Outer slide block, 32-First stage cylinder, 33-Second stage cylinder, 34-Clamping cylinder, 35-U-shaped connecting rod, 36-Clamping arm, 37-Double stroke connecting rod, 38-Mounting block, 39-Guide wheel, 4-Binding mechanism, 41-Inner slide block, 42-Electric strapping device, 43-Pushing cylinder, 5-Tonnage bag filling machine frame. Detailed Implementation

[0022] The present invention will be further explained and described below with reference to the accompanying drawings and embodiments. However, this should not be construed as limiting the scope of protection of the present invention. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention. Example 1

[0023] A fully automatic ton bag sealing device includes an adjusting support mechanism 1, a mounting frame 2, a sealing mechanism 3, and a binding mechanism 4; The adjusting support mechanism 1 is located on one side of the ton bag filling machine; the mounting frame 2 is located on the adjusting support mechanism 1; the mounting frame 2 is a frame structure welded from rods, and a slide rail 21 is arranged parallel to the lower side of the top frame of the mounting frame 2; the adjusting support mechanism 1 includes a support base frame 11 and a screw jack 12; the support base frame 11 is a ground-mounted frame structure that matches the mounting frame 2, and the lower end of the support base frame 11 column is provided with feet, and bolts pass through the feet to fix the support base frame 11 to the ground; the lower end of the mounting frame 2 column is inserted and connected to the support base frame 11 column one by one; the screw jack 12 is located in the middle of the support base frame 11, and the output flange of the screw jack 12 is connected to the mounting frame 2.

[0024] The closing mechanism 3 includes an outer slide block 31, a first-stage cylinder 32, a second-stage cylinder 33, a clamping cylinder 34, a U-shaped connecting rod 35, and a closing clamping arm 36. The outer slide block 31 is equipped with a slider that matches the slide rail 21, and the outer slide block 31 is slidably mounted within the mounting frame 2 via the slider. The first-stage cylinder 32 is located at the lower center of the mounting frame 2, and the second-stage cylinder 33 is correspondingly mounted on the outer slide block 31. The first-stage cylinder 32 is connected to the second-stage cylinder 33 via a double-stroke connecting rod 37. Mounting blocks 38 are positioned opposite each other at both ends of the double-stroke connecting rod 37, and corresponding clamping arms 34 are provided on the mounting blocks 35. The guide wheels 39 on the guide rods of the first-stage cylinder 32 and the second-stage cylinder 33 are matched; the rear ends of the two clamping cylinders 34 are respectively hinged to the outer sides of the outer slide block 31 through symmetrical supports; the U-shaped connecting rod 35 is a two-section structure broken in the middle, and the break points are respectively hinged to the piston rod ends of the clamping cylinders 34 through rotating shafts; the four clamping arms 36 are symmetrically arranged in pairs, and the rear ends of the clamping arms 36 are respectively rotatably mounted on the upper and lower sides of the outer slide block 31 through shaft retaining springs; the rear ends of the two clamping arms 36 on the same side are respectively fixedly connected to the two ends of the U-shaped connecting rod 35 on the corresponding side.

[0025] The binding mechanism 4 includes an inner slide 41, an electric binding device 42, and a push cylinder 43; the inner slide 41 is slidably connected to the mounting frame 2 via a slider and is located inside the outer slide 31; the electric binding device 42 is located on the middle of the inner slide 41 between the two sets of clamping arms 36, and the center of the electric binding device 42 coincides with the center of the two sets of clamping arms 36; the rear end of the push cylinder 43 is fixed on the mounting frame 2, and the front end of the piston rod of the push cylinder 43 is connected to the electric binding device 42.

[0026] A fully automatic method for sealing ton bags, the specific steps of which are as follows: S1: According to the location of the ton bag filling machine to be matched, place the support base 11 in a suitable position and fix the support base 11 with bolts through the foot anchors; according to the height of the ton bag opening on the ton bag filling machine, adjust the height of the mounting frame 2 through the screw jack 12 so that the electric strapping device 42 corresponds to the place where the ton bag opening needs to be tied. S2: In the initial state, the piston rod of the clamping cylinder 34 is in the retracted state, causing the front ends of the two sets of clamping arms 36 to open into a V shape; S3: The first stage cylinder 32 and the second stage cylinder 33 act simultaneously. The piston rod extends and moves synchronously through the double stroke connecting rod 37, driving the outer slide block 31 to move forward along the slide rail 21 and approach the ton bag. At this time, the two sets of drawstring clamping arms 36 move to the position where the ton bag opening is completely covered. S4: The two clamping cylinders 34 are activated, pushing the U-shaped connecting rod 35 to retract the front end of the two sets of clamping arms 36. The first cylinder 32 returns, and the two sets of clamping arms 36 bring the opening of the ton bag back. S5: The push cylinder 43 moves, the inner slide moves forward along the slide rail 21, the electric strapping device 42 pushes forward, the electric strapping device 42 head and the two sets of clamping arms 36 completely gather the bag mouth of the ton bag and automatically wrap the binding wire around the bag mouth of the ton bag after the binding operation is completed. After the push cylinder 43 returns to retract the strapping mechanism 4. S6: The two clamping cylinders 34 return to open the two sets of clamping arms 36, and the second-stage cylinder 33 returns to retract the closing mechanism 3. Example 2

[0027] A fully automatic ton bag sealing device includes an adjusting support mechanism 1, a mounting frame 2, a sealing mechanism 3, and a binding mechanism 4; Mounting bracket 2 is mounted on adjusting support mechanism 1; mounting bracket 2 is a frame structure welded from rods, and a slide rail 21 is arranged parallel to the lower side of the top frame of mounting bracket 2; adjusting support mechanism 1 includes a vertical adjusting suspension 13 and a horizontal adjusting suspension 14; both vertical adjusting suspension 13 and horizontal adjusting suspension 14 include a vertical support frame 15 and reinforcing ribs 16 inclined on both sides; vertical adjusting suspension 13 is welded to the upper middle part of mounting bracket 2, and long sliding holes are provided on the columns on both sides of the vertical support frame 15 of vertical adjusting suspension 13; the reinforcing ribs 16 of vertical adjusting suspension 13 and horizontal adjusting suspension 14 are arranged parallel to each other, and the lower ends of the two reinforcing ribs 16 of vertical adjusting suspension 13 are respectively connected to the two sides of mounting bracket 2; horizontal adjusting suspension 14... The two side columns of the frame 14 are connected to the two side columns of the vertical adjustment suspension 13 by bolts set in long sliding holes, so that the height of the horizontal adjustment suspension 14 is adjustable in front of the vertical adjustment suspension 13; the horizontal adjustment suspension 14 also includes a top frame set between the upper ends of its vertical support frame 15 and the reinforcing rib 16, and back rods 17 corresponding to the two sides of the top frame respectively. Long sliding holes are provided on both sides of the top frame and on the back rods 17. The horizontal adjustment suspension 14 is located on the lower side of the crossbeam of the ton bag filling machine frame 5. The back rods 17 are set on the upper side of the crossbeam of the ton bag filling machine frame 5 respectively, corresponding to the two sides of the top frame. The back rods 17 and the top frame are connected by bolts set in long sliding holes, so that the sealing device is set on the crossbeam of the ton bag filling machine frame 5.

[0028] Preferably, the two side columns of the vertical support frame 15 of the vertical adjustable suspension 13 and the horizontal adjustable suspension 14, the two side sides of the top frame of the horizontal adjustable suspension 14, and the back bar 17 are all made of U-shaped channel steel.

[0029] The closing mechanism 3 includes an outer slide block 31, a first-stage cylinder 32, a second-stage cylinder 33, a clamping cylinder 34, a U-shaped connecting rod 35, and a closing clamping arm 36. The outer slide block 31 is equipped with a slider that matches the slide rail 21, and the outer slide block 31 is slidably mounted within the mounting frame 2 via the slider. The first-stage cylinder 32 is located at the lower center of the mounting frame 2, and the second-stage cylinder 33 is correspondingly mounted on the outer slide block 31. The first-stage cylinder 32 is connected to the second-stage cylinder 33 via a double-stroke connecting rod 37. Mounting blocks 38 are positioned opposite each other at both ends of the double-stroke connecting rod 37, and corresponding clamping arms 34 are provided on the mounting blocks 35. The guide wheels 39 on the guide rods of the first-stage cylinder 32 and the second-stage cylinder 33 are matched; the rear ends of the two clamping cylinders 34 are respectively hinged to the outer sides of the outer slide block 31 through symmetrical supports; the U-shaped connecting rod 35 is a two-section structure broken in the middle, and the break points are respectively hinged to the piston rod ends of the clamping cylinders 34 through rotating shafts; the four clamping arms 36 are symmetrically arranged in pairs, and the rear ends of the clamping arms 36 are respectively rotatably mounted on the upper and lower sides of the outer slide block 31 through shaft retaining springs; the rear ends of the two clamping arms 36 on the same side are respectively fixedly connected to the two ends of the U-shaped connecting rod 35 on the corresponding side.

[0030] The strapping mechanism 4 includes an inner slide 41, an electric strapping device 42, and a push cylinder 43. The inner slide 41 is slidably connected to the mounting frame 2 via a slider and is located inside the outer slide 31. The electric strapping device 42 is located on the middle of the inner slide 41 between the two sets of clamping arms 36. The rear end of the push cylinder 43 is fixed on the mounting frame 2, and the front end of the piston rod of the push cylinder 43 is connected to the electric strapping device 42.

[0031] A fully automatic method for sealing ton bags, the specific steps of which are as follows: S1: Based on the dimensions of the crossbeam of the frame 5 of the ton bag filling machine, adjust the front and rear installation positions of the horizontal adjustment suspension 14 on the crossbeam of the frame 5 of the ton bag filling machine to ensure that the strokes of the first-stage cylinder 32 and the second-stage cylinder 33 of the closing mechanism 3 push the binding clamping arm 36 to a position that can include the opening of the ton bag; adjust the installation height of the vertical adjustment suspension 13 on the horizontal adjustment suspension 14 according to the height of the ton bag binding position; S2: In the initial state, the piston rod of the clamping cylinder 34 is in the retracted state, causing the front ends of the two sets of clamping arms 36 to open into a V shape; S3: The first stage cylinder 32 and the second stage cylinder 33 act simultaneously. The piston rod extends and moves synchronously through the double stroke connecting rod 37, driving the outer slide block 31 to move forward along the slide rail 21 and approach the ton bag. At this time, the two sets of drawstring clamping arms 36 move to the position where the ton bag opening is completely covered. S4: The two clamping cylinders 34 are activated, pushing the U-shaped connecting rod 35 to retract the front end of the two sets of clamping arms 36. The first cylinder 32 returns, and the two sets of clamping arms 36 bring the opening of the ton bag back. S5: The push cylinder 43 moves, the inner slide moves forward along the slide rail 21, the electric strapping device 42 pushes forward, the electric strapping device 42 head and the two sets of clamping arms 36 completely gather the bag mouth of the ton bag and automatically wrap the binding wire around the bag mouth of the ton bag after the binding operation is completed. After the push cylinder 43 returns to retract the strapping mechanism 4. S6: The two clamping cylinders 34 return to open the two sets of clamping arms 36, and the second-stage cylinder 33 returns to retract the closing mechanism 3.

[0032] The parts of this invention not described in detail are prior art.

[0033] The embodiments selected herein for the purpose of disclosing the inventive objectives are currently considered suitable; however, it should be understood that the invention is intended to include all variations and modifications of the embodiments that fall within the scope of this concept and invention.

Claims

1. A fully automatic ton bag sealing device, characterized in that, This includes an adjustment support mechanism, a mounting frame, a closing mechanism, and a binding mechanism; The adjustment support mechanism is correspondingly set to the ton bag filling machine; the mounting frame is set on the adjustment support mechanism, and the mounting frame is a frame structure welded with rods, with a slide rail arranged parallel to the lower side of the top frame of the mounting frame; The closing mechanism includes an outer slide block, a first-stage cylinder, a second-stage cylinder, a clamping cylinder, a U-shaped connecting rod, and a mouth-clamping arm. The outer slide block is equipped with a slider that matches the slide rail, and the outer slide block is slidably mounted within the mounting frame via the slider. The first-stage cylinder is located in the lower center of the mounting frame, and the second-stage cylinder is correspondingly mounted on the outer slide block. The first-stage cylinder is connected to the second-stage cylinder via a double-stroke connecting rod. The rear ends of the two clamping cylinders are respectively hinged to the outer sides of the outer slide block via symmetrical supports, and the U-shaped connecting rods are respectively hinged to the piston rod ends of the clamping cylinders via rotating shafts. The four mouth-clamping arms are symmetrically arranged in pairs, and the rear ends of each mouth-clamping arm are rotatably mounted on the upper and lower sides of the outer slide block via shaft retainers. The rear ends of the two mouth-clamping arms on the same side are respectively fixedly connected to the two ends of the corresponding U-shaped connecting rod. The binding mechanism includes an inner slide, an electric binding device, and a push cylinder; the inner slide is slidably connected to the mounting frame via a slider and is located inside the outer slide; the electric binding device is located on the middle of the inner slide between the two sets of clamping arms, and the center of the electric binding device coincides with the center of the two sets of clamping arms; the rear end of the push cylinder is fixed on the mounting frame, and the front end of the piston rod of the push cylinder is connected to the electric binding device.

2. The fully automatic ton bag sealing device according to claim 1, characterized in that: The two ends of the double-stroke connecting rod connecting the first-stage cylinder and the second-stage cylinder are provided with mounting blocks, and the mounting blocks are provided with guide wheels that match the guide rods on the first-stage cylinder and the second-stage cylinder.

3. The fully automatic ton bag sealing device according to claim 2, characterized in that: The U-shaped connecting rod is a two-section structure that is broken in the middle, with the break points hinged at both ends of the rotating shaft.

4. The fully automatic ton bag sealing device according to claim 3, characterized in that: The adjustable support mechanism includes a support base and a screw jack; the support base is a floor-mounted frame structure that matches the mounting frame; the lower end of the support base column is provided with feet, and bolts pass through the feet to fix the support base to the ground; the lower end of the mounting frame column is inserted and connected to the support base column one by one; the screw jack is located in the middle of the support base, and the output flange of the screw jack is connected to the mounting frame.

5. The fully automatic ton bag sealing device according to claim 3, characterized in that: The aforementioned adjustment support mechanism includes a vertical adjustment suspension and a horizontal adjustment suspension; the vertical adjustment suspension is welded and installed above the middle of the mounting frame, and the horizontal adjustment suspension is height-adjustable and installed in front of the vertical adjustment suspension, and the horizontal adjustment suspension is adjustable front and rear and installed on the crossbeam of the ton bag filling machine frame.

6. The fully automatic ton bag sealing device according to claim 5, characterized in that: Both the vertical and horizontal adjustable suspensions include a vertical support frame and reinforcing ribs inclined on both sides. The vertical support frame of the vertical adjustable suspension has elongated sliding holes on its two side columns. The reinforcing ribs of the vertical and horizontal adjustable suspensions are arranged in parallel, and the lower ends of the two reinforcing ribs of the vertical adjustable suspension are connected to the two sides of the mounting frame. The two side columns of the horizontal adjustable suspension are connected to the two side columns of the vertical adjustable suspension by bolts installed in the elongated sliding holes. The horizontal adjustable suspension also includes a top frame located between its vertical support frame and the upper ends of the reinforcing ribs, and back bars corresponding to the two sides of the top frame. Both sides of the top frame and the back bars have elongated sliding holes. The horizontal adjustable suspension is located below the crossbeam of the ton bag filling machine frame. The back bars are respectively installed on the upper side of the crossbeam of the ton bag filling machine frame, corresponding to the two sides of the top frame. The back bars and the top frame are connected by bolts installed in the elongated sliding holes, and the sealing device is installed on the crossbeam of the ton bag filling machine frame.

7. The fully automatic ton bag sealing device according to claim 6, characterized in that: The vertical support frames of the vertical adjustable suspension and the horizontal adjustable suspension, the two side columns, the top frame of the horizontal adjustable suspension, and the back bar are all made of U-shaped channel steel.

8. A fully automatic method for sealing ton bags, characterized in that, The specific steps are as follows: S1: Based on the location of the ton bag filling machine to be matched, place the support base frame in a suitable position and fix the support base frame with bolts through the foot anchors; based on the height of the ton bag opening on the ton bag filling machine, adjust the height of the mounting frame through the screw jack so that the electric strapping device corresponds to the point where the ton bag opening needs to be tied. S2: In the initial state, the piston rod of the clamping cylinder is in the retracted state, so that the front ends of the two sets of clamping arms open into a V shape; S3: The first and second cylinders operate simultaneously, and the piston rod extends and moves synchronously through the double-stroke connecting rod to drive the outer slide block to move forward along the slide rail and approach the ton bag. At this time, the two sets of drawstring clamping arms move to the position where the ton bag opening is completely covered. S4: The two clamping cylinders move, pushing the U-shaped connecting rod to retract the front ends of the two sets of clamping arms. The cylinder returns to its original position, and the two sets of clamping arms bring the bag openings of the ton bag back. S5: The push cylinder moves, the inner slide moves forward along the slide rail, the electric strapping device pushes forward, the electric strapping device head and the two sets of clamping arms completely gather the bag mouth of the ton bag and then automatically wrap the binding wire around the bag mouth of the ton bag. After the sealing operation is completed, the push cylinder returns to retract the strapping mechanism. S6: The return stroke of the two clamping cylinders opens the two sets of clamping arms, and the return stroke of the second-stage cylinder retracts the closing mechanism.

9. A fully automatic method for sealing ton bags, characterized in that, The specific steps are as follows: S1: Based on the dimensions of the frame beam of the ton bag filling machine, adjust the front and rear installation positions of the horizontal adjustment suspension on the frame beam of the ton bag filling machine to ensure that the strokes of the first and second cylinders of the closing mechanism push the binding clamping arm to a position that can include the opening of the ton bag; adjust the installation height of the vertical adjustment suspension on the horizontal adjustment suspension according to the height of the ton bag binding position; S2: In the initial state, the piston rod of the clamping cylinder is in the retracted state, so that the front ends of the two sets of clamping arms open into a V shape; S3: The first and second cylinders operate simultaneously, and the piston rod extends and moves synchronously through the double-stroke connecting rod to drive the outer slide block to move forward along the slide rail and approach the ton bag. At this time, the two sets of drawstring clamping arms move to the position where the ton bag opening is completely covered. S4: The two clamping cylinders move, pushing the U-shaped connecting rod to retract the front ends of the two sets of clamping arms. The cylinder returns to its original position, and the two sets of clamping arms bring the bag openings of the ton bag back. S5: The push cylinder moves, the inner slide moves forward along the slide rail, the electric strapping device pushes forward, the electric strapping device head and the two sets of clamping arms completely gather the bag mouth of the ton bag and then automatically wrap the binding wire around the bag mouth of the ton bag. After the sealing operation is completed, the push cylinder returns to retract the strapping mechanism. S6: The return stroke of the two clamping cylinders opens the two sets of clamping arms, and the return stroke of the second-stage cylinder retracts the closing mechanism.

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