Pneumatic strapping machine

Abstract

The invention relates to the technical field of strapping machines, the strapping machine comprises a strapping machine body, a strapping mechanism, a first positioning mechanism and a second positioning mechanism, the two ends of a plate can be strapped in an equal-length and equal-gravity mode through the arranged first positioning mechanism, so that force borne by strapping strips at the two ends is the same, and the stability of the strapped plate is improved; the situation that the binding strip at one end is broken open is avoided, meanwhile, movement or inclination of the plate in the transportation process is reduced, and therefore the risk that the plate is abraded and damaged is reduced, and the arranged second positioning mechanism can evenly distribute the length of the binding strip. The situation that the bearing capacity and stability of the binding strip are affected due to the fact that one end of the binding strip is short and the other end of the binding strip is long in the bending use process is avoided, stress distribution of the two ends of the binding strip is consistent, the service life of the binding strip is prolonged, and the arranged binding machine can rapidly bind a large number of plates. And the arranged bundling mechanism can adapt to bundling strips of different widths and thicknesses, and various bundling requirements are met.

Description

Technical Field

[0001] The invention relates to the field of strapping machines, in particular to a pneumatic strapping machine. Background Art

[0002] Pneumatic plate strapping machine is an efficient and reliable packaging equipment, mainly used for steel enterprises and non-ferrous metal enterprises to strap pipes, plates, profiles and ingots of various specifications. Pneumatic plate strapping machine usually adopts modular design, small size and light weight, which is convenient for operation in limited space. At the same time, by replacing different parts, it can adapt to steel strips of different widths and thicknesses to meet various strapping needs.

[0003] Therefore, based on the existing strapping machines, in actual application, the selection of the binding position of the tie strips has a direct impact on the stability and safety of the plates. If the binding position is not selected properly, the plates may move or tilt during transportation, thereby increasing the risk of wear and damage. At the same time, the length of the tie strips directly affects their bearing capacity and stability. Longer tie strips may be more likely to deform or break when bent, because the stress distribution of long tie strips during the bending process is wider, which may lead to local stress concentration, thereby reducing their overall strength. On the contrary, shorter tie strips may be better able to maintain the stability and integrity of the shape due to the relatively concentrated stress area. However, in the actual use of the tie strips, the lengths of the two ends of the tie strips cannot be accurately distributed, resulting in one end of the tie strip being short and the other end being long during the bending process, which affects the service life of the tie strips. For this reason, we propose a pneumatic strapping machine. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a pneumatic strapping machine, which has the advantages of high stability after strapping and solves a series of problems such as loose strapping.

[0005] To achieve the above object, the present invention provides the following technical solution: a pneumatic strapping machine, comprising:

[0006] A strapping machine, the strapping machine is used for strapping plates, the strapping machine comprises two strapping shells, a booster cylinder is fixedly mounted on the top of the strapping shell, and an auxiliary cylinder is fixedly mounted on the top of the strapping shell;

[0007] A bundling mechanism, the bundling mechanism is used to bend the bundling strips, the bundling mechanism includes a base plate fixedly connected to the top of the inner wall of the bundling shell, the top of the base plate is slidably connected to two side push plates, the top of the base plate is fixedly connected to two first mounting plates, the separated sides of the two first mounting plates are fixedly connected to the second mounting plates, the top of the second mounting plates is fixedly connected to the mounting shell, the top of the mounting shell is fixedly connected to a limiting plate, the bundling strips are placed inside the limiting plate, and the ends of the two mounting shells that are close to each other are rotatably connected to the bending plates;

[0008] A first positioning mechanism, the first positioning mechanism is used to automatically adjust the position of the plate, the first positioning mechanism comprises a hydraulic telescopic column fixedly connected to the bottom of the inner wall of the bundling shell, the extension end of the hydraulic telescopic column is fixedly connected to a support plate, the top of the support plate is rotatably connected to a roller, and a visual sensor is fixedly installed on one side of the inner wall of the bundling shell;

[0009] The second positioning mechanism is used to automatically adjust the position of the tie strip, and the second positioning mechanism includes a tie strip roller rotatably connected to the top of the mounting shell.

[0010] Preferably, the output ends of the boost cylinder and the auxiliary cylinder both extend to the interior of the bundling shell, the output end of the boost cylinder is fixedly connected to a first fixed block, the output end of the auxiliary cylinder is fixedly connected to a second fixed block, and the opposite sides of the two bundling shells are fixedly connected to the same bottom plate.

[0011] Preferably, a side thrust cylinder is fixedly mounted on the bottom of the second mounting plate, the output end of the side thrust cylinder is fixedly connected to the side thrust plate, and a butt plate is also fixedly connected to the bottom of the second mounting plate, one side of the butt plate abuts against the side thrust cylinder.

[0012] Preferably, the bottom of the inner wall of the mounting shell is fixedly connected with the first rotating frame and the second rotating frame, the top of the second rotating frame is rotatably connected with a bending cylinder, the extending end of the bending cylinder is fixedly connected with a connecting block, the top of the second rotating frame is rotatably connected with a connecting plate, the connecting plate is rotatably connected to the inside of the connecting block, and the bending plate is fixedly connected to the connecting plate.

[0013] Preferably, the second positioning mechanism also includes an avoidance groove opened on the top of the mounting shell, the tie strip roller rotates inside the avoidance groove, the top of the inner wall of the mounting shell is fixedly connected with a tie strip detection shell, the bottom of the inner wall of the tie strip detection shell is fixedly installed with a tie strip pressure sensor, the detection end of the tie strip pressure sensor is fixedly connected with a roller frame, and the tie strip roller is rotatably connected to the top of the roller frame.

[0014] Preferably, a first driving motor is fixedly mounted on the top of the inner wall of the mounting shell, and a first sprocket is fixedly sleeved on the output end of the first driving motor and the middle of the strip-binding roller, and the outer parts of the two first sprockets are rotatably sleeved with the same first chain.

[0015] Preferably, the first positioning mechanism also includes an execution frame fixedly connected to the top of the support plate, and plate pressure sensors are fixedly installed on both sides of the execution frame. The detection end of the plate pressure sensor is fixedly connected to a sliding block, and the sliding block is slidably connected to the inside of the execution frame. The two sliding blocks are internally rotatably connected to the same rotating rod, and the roller is fixedly sleeved on the outside of the rotating rod.

[0016] Preferably, a second drive motor is fixedly mounted on the top of the support plate, a second sprocket is fixedly sleeved on the output end of the second drive motor and the outside of the rotating rod, and the same second chain is rotatably sleeved on the outsides of the two second sprockets.

[0017] Preferably, two guide plates are fixedly connected to the top of the second mounting plate.

[0018] Compared with the prior art, the present invention provides a pneumatic strapping machine, which has the following beneficial effects:

[0019] 1. The invention can bundle the two ends of the plate with equal length and equal gravity by setting a first positioning mechanism, so that the forces on the tying strips at both ends are the same, thereby improving the stability of the plate after bundling and avoiding the situation where the tying strip at one end collapses. At the same time, it reduces the movement or tilting of the plate during transportation, thereby reducing the risk of wear and damage to the plate.

[0020] 2. The invention also uses the first positioning mechanism to move the position of the plate visually when the weight cannot be evenly distributed due to the different shapes of the plates, thereby improving the stability of the plate transportation after bundling. At the same time, the visual sensor can calculate the circumference of the plate cross-section to quickly select the appropriate length of the binding strip for bundling, thereby improving work efficiency and reducing the generation of binding strip waste.

[0021] 3. The invention can evenly distribute the length of the tie strip by setting up a second positioning mechanism, so as to avoid the situation in which the tie strip is bent and used with one end shorter than the other, which may affect the bearing capacity and stability of the tie strip, and make the stress distribution at both ends of the tie strip consistent, thereby improving the service life of the tie strip.

[0022] 4. The invention can quickly bundle a large number of plates through the provided bundling machine, and can adapt to the bundling strips of different widths and thicknesses through the provided bundling mechanism to meet various bundling needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0024] Figure 2 It is a schematic diagram of the three-dimensional structure of the bundling shell part of the present invention;

[0025] Figure 3 It is a three-dimensional structural schematic diagram of the side thrust cylinder part of the present invention;

[0026] Figure 4 It is a schematic diagram of the three-dimensional structure of the bent plate part of the present invention;

[0027] Figure 5This is a schematic diagram of the three-dimensional structure inside the installation shell of the present invention;

[0028] Figure 6 It is a schematic diagram of the three-dimensional structure of the second positioning mechanism part of the present invention;

[0029] Figure 7 for Figure 2 A schematic diagram of the enlarged structure of part A;

[0030] Figure 8 for Figure 7 A schematic diagram of the enlarged structure of part B;

[0031] Fig. 9 It is a schematic diagram of the three-dimensional structure of the visual sensor part of the present invention.

[0032] In the figure: 1, strapping machine; 2, strapping shell; 3, strapping mechanism; 4, first positioning mechanism; 5, second positioning mechanism; 6, bottom plate; 7, booster cylinder; 8, first fixed block; 9, auxiliary cylinder; 10, second fixed block; 11, base plate; 12, first mounting plate; 13, second mounting plate; 14, side push cylinder; 15, side push plate; 16, stop plate; 17, mounting shell; 18, limit plate; 19, guide plate; 20, bending plate; 21, first rotating frame; 22, second rotating frame; 23, bending Cylinder; 24. Connecting block; 25. Connecting plate; 26. Avoidance groove; 27. Tie roller; 28. Tie detection shell; 29. ​​Tie pressure sensor; 30. Roller frame; 31. First drive motor; 32. First sprocket; 33. First chain; 34. Hydraulic telescopic column; 35. Support plate; 36. Execution frame; 37. Sliding block; 38. Rotating rod; 39. Roller; 40. Second drive motor; 41. Second sprocket; 42. Second chain; 43. Plate pressure sensor; 44. Visual sensor. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] As introduced in the background technology, there are deficiencies in the prior art. In order to solve the above technical problems, the present application proposes a pneumatic strapping machine.

[0035] In a typical implementation of the present application, Figure 1-9 As shown, a pneumatic strapping machine comprises:

[0036] The strapping machine 1 is used for strapping plates. The strapping machine 1 comprises two strapping shells 2. A booster cylinder 7 is fixedly mounted on the top of the strapping shell 2. An auxiliary cylinder 9 is fixedly mounted on the top of the strapping shell 2. The output ends of the booster cylinder 7 and the auxiliary cylinder 9 extend to the interior of the strapping shell 2. The output end of the booster cylinder 7 is fixedly connected to a first fixed block 8. The output end of the auxiliary cylinder 9 is fixedly connected to a second fixed block 10. The opposite sides of the two strapping shells 2 are fixedly connected to the same bottom plate 6.

[0037] The strapping mechanism 3 is used for bending the strapping strips. The strapping mechanism 3 includes a base plate 11 fixedly connected to the top of the inner wall of the strapping shell 2. Two side push plates 15 are slidably connected to the top of the base plate 11. Two first mounting plates 12 are fixedly connected to the top of the base plate 11. The two first mounting plates 12 are fixedly connected to the separated sides thereof. A side push cylinder 14 is fixedly installed at the bottom of the second mounting plate 13. The output end of the side push cylinder 14 is fixedly connected to the side push plate 15. A butt plate 16 is also fixedly connected to the bottom of the second mounting plate 13. One side of the butt plate 16 is in contact with the side push cylinder 14.

[0038] The top of the second mounting plate 13 is fixedly connected to a mounting shell 17, the top of the mounting shell 17 is fixedly connected to a limiting plate 18, a tie strip is placed inside the limiting plate 18, the adjacent ends of the two mounting shells 17 are rotatably connected to a bending plate 20, the bottom of the inner wall of the mounting shell 17 is fixedly connected to a first rotating frame 21 and a second rotating frame 22, the top of the second rotating frame 22 is rotatably connected to a bending cylinder 23, the extending end of the bending cylinder 23 is fixedly connected to a connecting block 24, the top of the second rotating frame 22 is rotatably connected to a connecting plate 25, the connecting plate 25 is rotatably connected to the inside of the connecting block 24, and the bending plate 20 is fixedly connected to the connecting plate 25.

[0039] By setting the above structure, the plates can be bundled. Specifically, first place the two tying strips inside the limiting plate 18, and place the plates on the top of the two tying strips in the middle of the two bundling shells 2. At this time, start the boost cylinder 7, and the output end of the boost cylinder 7 moves downward to drive the first fixed block 8 to move downward. The first fixed block 8 moves downward to abut against the top of the plate and drives the plate to move downward. During the downward movement of the plate, the two tying strips at the bottom of the plate are bent by force and present a U shape at the top of the base plate 11. At this time, there is a large gap between the two sides of the tying strip and the two sides of the plate. Start the side push cylinder 14, and the side push cylinder 14 The extended end drives the side push plate 15 to gradually approach the plate and bends the tie strip so that the tie strip is close to both sides of the plate. When the tie strip is close to both sides of the plate, the bending cylinder 23 is started, and the output end of the bending cylinder 23 is extended, and drives the connecting plate 25 to rotate inside the mounting shell 17. The rotation of the connecting plate 25 drives the bending plate 20 to move, and squeezes part of the tie strip at the top of the plate toward the center of the plate, so that the tie strip is tilted toward the top of the plate. At this time, the auxiliary cylinder 9 is started, and the second fixed block 10 is pressed on the top of the plate to reduce the gap between the plates, so as to prevent the plate from moving inside the tie strip after bundling, resulting in failure of the tie strip.

[0040] The first positioning mechanism 4 is used to automatically adjust the position of the plate. The first positioning mechanism 4 includes a hydraulic telescopic column 34 fixedly connected to the bottom of the inner wall of the bundling shell 2. The extended end of the hydraulic telescopic column 34 is fixedly connected to a support plate 35. The top of the support plate 35 is rotatably connected to a roller 39. The first positioning mechanism 4 also includes an execution frame 36 fixedly connected to the top of the support plate 35. Plate pressure sensors 43 are fixedly installed on both sides of the execution frame 36. The detection end of the plate pressure sensor 43 is fixedly connected to a sliding block 37. The sliding block 37 is slidably connected to the inside of the execution frame 36. The insides of the two sliding blocks 37 are rotatably connected to the same rotating rod 38. The roller 39 is fixedly sleeved on the outside of the rotating rod 38.

[0041] A second drive motor 40 is fixedly mounted on the top of the support plate 35 , and a second sprocket 41 is fixedly sleeved between the output end of the second drive motor 40 and the outside of the rotating rod 38 , and a second chain 42 is rotatably sleeved on the outsides of the two second sprockets 41 .

[0042] By setting the above structure, the stability of the bundled plates can be improved. Specifically, the selection of the binding position of the tie strips has a direct impact on the stability and safety of the plates. If the binding position is not selected properly, the plates may move or tilt during transportation, thereby increasing the risk of wear and damage. More specifically, the plates will generate an inertial force due to their own weight during transportation or movement. Tying the plates symmetrically with two tie strips can ensure that the two tie strips are subjected to balanced forces as much as possible, thereby preventing one of the tie strips from being subjected to a larger force and causing loosening or breaking. Therefore, after the plates are placed on top of the two tie strips, the hydraulic telescopic column 34 is started, and the extended end of the hydraulic telescopic column 34 drives the support plate 35 to move upward, and through The plate is lifted up by the rotating roller 39. After the plate is lifted up, the plate pressure sensor 43 can detect whether the plate is placed in the middle of the two strapping shells 2. When the plate is not placed in the middle of the two strapping shells 2, the two second drive motors 40 are started, and the output ends of the two second drive motors 40 drive the second sprocket 41 to rotate, and the rotation of the second sprocket 41 drives the second chain 42 to move, and the movement of the second chain 42 drives the rotating roller 39 to rotate, and the rotation of the rotating roller 39 drives the plate to move. During the movement of the plate, the plate pressure sensor 43 is monitored in real time until the pressure sensors 43 on both sides detect the same value, which means that the gravity and tension at both ends are the same, so that the tying strips at both ends are subjected to the same supporting force, thereby improving the stability of the plate after strapping.

[0043] A visual sensor 44 is fixedly mounted on one side of the inner wall of the bundling shell 2 .

[0044] By setting up two opposing visual sensors 44, when the weight of the plates cannot be evenly distributed due to the different shapes of the plates, the position of the plates can be moved by vision, thereby improving the stability of the plate transportation and movement after bundling. Specifically, when the center of gravity of the plates is not at the center, the rollers 39 rotate to drive the plates to move, but the movement of the plates cannot make the values ​​detected by the pressure sensors 43 on both sides gradually close, and the difference in the values ​​detected by the pressure sensors 43 on both sides may gradually increase with the movement of the plates. At this time, the two visual sensors 44 are started, and the pressure sensors 43 are turned off. The visual sensors 44 inside the two strapping shells 2 can accurately know where the plates are on the opposite side of the two strapping shells 2 at this time. The distance to the plates is detected by the two visual sensors 44, and the two rollers 39 are driven to rotate to drive the plates to move, and the plates are moved to the center of the two strapping shells 2, so that the distances between the plates and the two visual sensors 44 are the same, so as to facilitate strapping.

[0045] More specifically, a proportional control (P-control) strategy can be used. Proportional control is a simple feedback control method that adjusts the control input based on the system deviation (i.e., the difference between the target value and the actual value). The following is a simplified form of the adjustment formula:

[0046] Assume that dleft is the distance of the plate detected by the left vision sensor 44, dright is the distance of the plate detected by the right vision sensor 44, dtarget is the target distance (i.e., the ideal distance between the two vision sensors 44 and the plate), and vleft and vright are the adjustment speeds of the left and right rollers 39, respectively.

[0047] The adjustment formula can be expressed as:

[0048] vleft=kp(dtarget-dleft)

[0049] vright=kp(dtarget-dright)

[0050] Where kp is the proportional gain, which is a positive constant used to adjust the strength of the control response.

[0051] In this formula, if dleft is greater than dtarget, vleft is a negative value, indicating that the speed of the left roller 39 needs to be reduced; if dleft is less than dtarget, vleft is a positive value, indicating that the speed of the left roller 39 needs to be increased. The same applies to the right roller 39.

[0052] In order to make the distance between the sheet and the two vision sensors 44 the same, the formula can be further adjusted so that the adjustment speeds of the two rollers 39 are related to each other, as follows:

[0053] vleft=kp(dright-dleft)

[0054] vright=kp(dleft-dright)

[0055] In this way, when the plate is deflected to one side, the roller 39 deflected to one side will slow down, while the roller 39 on the other side will speed up, thereby pushing the plate to move toward the target position.

[0056] The second positioning mechanism 5 is used to automatically adjust the position of the tie strip, and the second positioning mechanism 5 includes a tie strip roller 27 rotatably connected to the top of the mounting shell 17, and the second positioning mechanism 5 also includes an avoidance groove 26 opened at the top of the mounting shell 17, and the tie strip roller 27 rotates inside the avoidance groove 26, and a tie strip detection shell 28 is fixedly connected to the top of the inner wall of the mounting shell 17, and a tie strip pressure sensor 29 is fixedly installed at the bottom of the inner wall of the tie strip detection shell 28, and the detection end of the tie strip pressure sensor 29 is fixedly connected to the roller frame 30, and the tie strip roller 27 is rotatably connected to the top of the roller frame 30;

[0057] A first drive motor 31 is fixedly mounted on the top of the inner wall of the mounting shell 17 , and a first sprocket 32 ​​is fixedly sleeved between the output end of the first drive motor 31 and the middle of the strip-binding roller 27 , and a first chain 33 is rotatably sleeved on the outside of the two first sprockets 32 .

[0058] Furthermore, in the above scheme, the service life of the tie strip can be improved by setting the above structure. Specifically, after the tie strip is placed on the top of the limit plate 18, the tie strip pressure sensor 29 is started to detect the weight of the two ends of the tie strip. When the weights of the two ends of the tie strip are inconsistent, the first drive motor 31 is started, and the output end of the first drive motor 31 rotates to drive the first sprocket 32 ​​to rotate, and the rotation of the first sprocket 32 ​​drives the first chain 33 to move, and the movement of the first chain 33 drives the tie strip roller 27 to rotate, and the tie strip roller 27 rotates to move the tie strip until the tie strip moves to the middle position of the strapping shell 2 and the first drive motor 31 is turned off, thereby accurately distributing the lengths of the two ends of the tie strip, so that the lengths of the two ends of the tie strip are equal during the bending and use process, thereby improving the service life of the tie strip and improving the integrity of the tie strip bundling.

[0059] It is worth mentioning that the two visual sensors 44 can detect the perimeter of the plate, which is convenient for selecting a suitable length of strapping when bundling the plate. Specifically, the visual sensor 44 is a prior art and can detect the perimeter of an object through contour detection and feature extraction technology in vision. The specific steps are as follows:

[0060] S1. Read the image and convert it into a grayscale image to reduce the computational complexity, and perform binarization on the grayscale image to better identify the object contour;

[0061] S2. Use the cv2.findContours function to detect contours in the image. This function will return a list of contours, each of which consists of a series of points.

[0062] S3. For each detected contour, use the cv2.approxPolyDP function to perform polygonal approximation to reduce the number of contour points and simplify the contour shape. The epsilon parameter is the accuracy of the approximation, which is a percentage of the contour perimeter. A smaller epsilon value produces a more accurate approximation.

[0063] S4. Use the cv2.findContours function to calculate the perimeter of each contour, and use the cv2.drawContours function to draw the contour on the original image to visualize the results. The cross-sectional perimeter of the sheet can be calculated to facilitate the selection of the appropriate length of the tie.

[0064] More specifically, the cv2.arcLength function is used to calculate the perimeter of the contour, and the cv2.approxPolyDP function is used for polygonal approximation of the contour. By adjusting the value of epsilon, the accuracy of the approximation can be controlled. This method can effectively detect and calculate the perimeter of objects in the image and is suitable for various application scenarios that require object size measurement.

[0065] Two guide plates 19 are fixedly connected to the top of the second mounting plate 13, which can guide and protect the descending plate and prevent the plate from being damaged due to hard contact with other equipment.

[0066] Working principle of the present invention: during use, first place two tie strips inside the limit plate 18, and after placing the tie strip on the top of the limit plate 18, start the tie strip pressure sensor 29 to detect the weight of the two ends of the tie strip. When the weights of the two ends of the tie strip are inconsistent, start the first drive motor 31, and the output end of the first drive motor 31 rotates to drive the first sprocket 32 ​​to rotate, and the first sprocket 32 ​​rotates to drive the first chain 33 to move, and the first chain 33 moves to drive the tie strip roller 27 to rotate, and the tie strip roller 27 rotates to move the tie strip until the tie strip moves to the middle position of the strapping shell 2;

[0067] Then place the sheet on the top of the two strapping strips, and then start the hydraulic telescopic column 34. The extended end of the hydraulic telescopic column 34 drives the support plate 35 to move upward, and lifts the sheet through the roller 39. After the sheet is lifted, the sheet pressure sensor 43 can detect whether the sheet is placed in the middle of the two strapping shells 2. When the sheet is not placed in the middle of the two strapping shells 2, start the two second drive motors 40. The output ends of the two second drive motors 40 drive the second sprocket 41 to rotate, and the rotation of the second sprocket 41 drives the second chain 42 to move. The movement of the second chain 42 drives the roller 39 to rotate, and the rotation of the roller 39 drives the sheet to move. During the movement of the sheet, the sheet pressure sensor 43 monitors in real time until the sheet is moved to the middle position of the two strapping shells 2.

[0068] At this time, the boost cylinder 7 is started, and the output end of the boost cylinder 7 moves downward to drive the first fixed block 8 to move downward. The first fixed block 8 moves downward to abut against the top of the plate and drives the plate to move downward. During the downward movement of the plate, the two tie bars at the bottom of the plate are bent by force and present a U shape at the top of the base plate 11. At this time, a large gap is left between the two sides of the tie bar and the two sides of the plate. The side push cylinder 14 is started, and the extended end of the side push cylinder 14 drives the side push plate 15 to gradually approach the plate and bend the tie bar so that the tie bar is close to the two sides of the plate. When the tie strips are close to both sides of the plate, at this time, the bending cylinder 23 is started, the output end of the bending cylinder 23 is extended, and the connecting plate 25 is driven to rotate inside the mounting shell 17. The rotation of the connecting plate 25 drives the bending plate 20 to move, and the part of the tie strips at the top of the plate is squeezed toward the center of the plate, so that the tie strips are tilted toward the top of the plate. At this time, the auxiliary cylinder 9 is started, and the second fixed block 10 is pressed on the top of the plate to reduce the gap between the plates, so as to prevent the plates from moving inside the tie strips after bundling, causing the tie strips to fail, and completing the bundling of the plates.

[0069] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Pneumatic strapping machine, characterized by: include, A strapping machine (1), the strapping machine (1) being used for strapping plates, the strapping machine (1) comprising two strapping shells (2), a booster cylinder (7) being fixedly mounted on the top of the strapping shell (2), and an auxiliary cylinder (9) being fixedly mounted on the top of the strapping shell (2); A bundling mechanism (3), the bundling mechanism (3) is used to bend the bundling strips, the bundling mechanism (3) comprises a base plate (11) fixedly connected to the top of the inner wall of the bundling shell (2), the top of the base plate (11) is slidably connected to two side push plates (15), the top of the base plate (11) is fixedly connected to two first mounting plates (12), the two first mounting plates (12) are fixedly connected to the separated sides thereof with a second mounting plate (13), the top of the second mounting plate (13) is fixedly connected to a mounting shell (17), the top of the mounting shell (17) is fixedly connected to a limiting plate (18), a bundling strip is placed inside the limiting plate (18), and the two mounting shells (17) are rotatably connected to the adjacent ends thereof with a bending plate (20); A first positioning mechanism (4), the first positioning mechanism (4) is used to automatically adjust the position of the plate, the first positioning mechanism (4) comprises a hydraulic telescopic column (34) fixedly connected to the bottom of the inner wall of the bundling shell (2), the extended end of the hydraulic telescopic column (34) is fixedly connected to a support plate (35), the top of the support plate (35) is rotatably connected to a roller (39), and a visual sensor (44) is fixedly installed on one side of the inner wall of the bundling shell (2); A second positioning mechanism (5), the second positioning mechanism (5) is used to automatically adjust the position of the tie strip, and the second positioning mechanism (5) comprises a tie strip roller (27) rotatably connected to the top of the mounting shell (17).

2. The pneumatic strapping machine according to claim 1, characterized in that: The output ends of the boost cylinder (7) and the auxiliary cylinder (9) both extend into the interior of the bundling shell (2); the output end of the boost cylinder (7) is fixedly connected to a first fixing block (8); the output end of the auxiliary cylinder (9) is fixedly connected to a second fixing block (10); and opposite sides of the two bundling shells (2) are fixedly connected to the same bottom plate (6).

3. The pneumatic strapping machine according to claim 1, characterized in that: A side thrust cylinder (14) is fixedly mounted on the bottom of the second mounting plate (13), and an output end of the side thrust cylinder (14) is fixedly connected to a side thrust plate (15). A stop plate (16) is also fixedly connected to the bottom of the second mounting plate (13), and one side of the stop plate (16) is in contact with the side thrust cylinder (14).

4. The pneumatic strapping machine according to claim 1, characterized in that: The bottom of the inner wall of the mounting shell (17) is fixedly connected to a first rotating frame (21) and a second rotating frame (22); the top of the second rotating frame (22) is rotatably connected to a bending cylinder (23); the extending end of the bending cylinder (23) is fixedly connected to a connecting block (24); the top of the second rotating frame (22) is rotatably connected to a connecting plate (25); the connecting plate (25) is rotatably connected to the inside of the connecting block (24); and the bending plate (20) is fixedly connected to the connecting plate (25).

5. The pneumatic strapping machine according to claim 1, characterized in that: The second positioning mechanism (5) further comprises an avoidance groove (26) provided at the top of the mounting shell (17); the tie-strip roller (27) rotates inside the avoidance groove (26); a tie-strip detection shell (28) is fixedly connected to the top of the inner wall of the mounting shell (17); a tie-strip pressure sensor (29) is fixedly installed at the bottom of the inner wall of the tie-strip detection shell (28); a detection end of the tie-strip pressure sensor (29) is fixedly connected to a roller frame (30); and the tie-strip roller (27) is rotatably connected to the top of the roller frame (30).

6. The pneumatic strapping machine according to claim 5, characterized in that: A first drive motor (31) is fixedly mounted on the top of the inner wall of the mounting shell (17); the output end of the first drive motor (31) and the middle of the strip-binding roller (27) are both fixedly sleeved with a first sprocket (32); and the outer parts of the two first sprockets (32) are rotatably sleeved with the same first chain (33).

7. The pneumatic strapping machine according to claim 1, characterized in that: The first positioning mechanism (4) also includes an execution frame (36) fixedly connected to the top of the support plate (35), and plate pressure sensors (43) are fixedly installed on both sides of the execution frame (36). The detection end of the plate pressure sensor (43) is fixedly connected to a sliding block (37), and the sliding block (37) is slidably connected to the inside of the execution frame (36). The insides of the two sliding blocks (37) are rotatably connected to the same rotating rod (38), and the roller (39) is fixedly sleeved on the outside of the rotating rod (38).

8. The pneumatic strapping machine according to claim 7, characterized in that: A second drive motor (40) is fixedly mounted on the top of the support plate (35); a second sprocket (41) is fixedly sleeved on the output end of the second drive motor (40) and the outside of the rotating rod (38); and a second chain (42) is rotatably sleeved on the outsides of the two second sprockets (41).

9. The pneumatic strapping machine according to claim 8, characterized in that: Two guide plates (19) are fixedly connected to the top of the second mounting plate (13).

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