Automatic shearing processing apparatus for packaging material

Abstract

The present application relates to shearing processing technical field, automatic shearing processing equipment of packaging material is disclosed, including pressing slide support, and the pressing slide support is also provided with the air suction machine of flue gas absorption, the metal band that is cut to thermoplastic plastic is arranged below the pressing slide support, the metal band is elastic metal strip, a plurality of laser cutting edges are arranged on the metal band, two moving rings are slidably arranged on the pressing slide support, the metal band is coaxially rotated in the moving ring through the turnover table, and the contact surface of the metal band cutting thermoplastic plastic is changed.In the present application, when the face of the metal band towards the thermoplastic plate is wide, the metal band in this state is extremely difficult to bend in the horizontal direction, thereby making the metal band with laser cutting edge laser cutting thermoplastic plate, or the metal band itself cutting thermoplastic plate, which can ensure the straightness of the cut, compared with the traditional cutting without considering the calibration of cutting.

Description

Technical Field

[0001] This invention relates to the field of shearing technology, and more particularly to automatic shearing equipment for packaging materials. Background Technology

[0002] For existing packaging materials, such as those made of thermoplastic, cutting is required. However, conventional methods typically present the following problems:

[0003] Firstly, fumes will be generated during the cutting process. These fumes need to be removed in time. If they are not removed in time, a large amount of fumes generated by the heating of the plastic during the cutting process will be directly inhaled by the operator, which can easily cause safety hazards. Therefore, it is necessary to remove these fumes in a timely manner.

[0004] Secondly, regarding the determination of the cutting shape, conventional cutting is a straight line cutting. If an arc is to be cut, a specific support is needed to assist in cutting thermoplastic. Therefore, for cutting different arcs, the existing technology requires constantly changing the carrier support of different shapes, which undoubtedly increases the difficulty of operation and is not conducive to rapid cutting.

[0005] To address this, we designed an automated cutting and processing device for packaging materials. Summary of the Invention

[0006] The purpose of this invention is to solve the problems of the large amount of fumes generated by the heating of plastic during the cutting process being directly inhaled by the operator, which easily creates safety hazards, and the need to constantly change carrier supports of different shapes for cutting different curvatures, which undoubtedly increases the difficulty of operation. The proposed invention is an automatic cutting and processing equipment for packaging materials.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] An automatic cutting and processing equipment for packaging materials includes a pressing and sliding bracket, and a suction fan for absorbing fumes on the pressing and sliding bracket. Below the pressing and sliding bracket is a metal strip for cutting thermoplastic plastic. The metal strip is an elastic metal strip with multiple laser cutting blades. Two moving rings are slidably mounted on the pressing and sliding bracket. The metal strip rotates coaxially within the moving rings via a flipping table, changing the contact surface of the metal strip cutting the thermoplastic plastic. A flipping drive is mounted on the pressing and sliding bracket to drive the two symmetrically arranged moving rings to rotate and bend the metal strip.

[0009] Preferably, the metal strip comprises:

[0010] The elastic metal strip body has symmetrical side protective strips on both sides, and there is a smoke extraction groove between the elastic metal strip body and the side protective strips.

[0011] The inner cavity is formed on the elastic metal strip body, and the smoking groove is connected to the inner cavity through the smoking hole. The bottom of the smoking groove is provided with positioning holes that are equidistantly arranged.

[0012] Preferably, the flipping table has a mounting hole adapted to the cross-section of the metal strip, and the mounting hole has a protruding plate adapted to the smoke trough. The protruding plate has a telescopically sliding positioning rod, which is reset and telescopically extended by a second reset spring. The flipping table positions the elastic metal strip body by the positioning rod and the positioning hole's matching buckle.

[0013] Preferably, the side wall of the tilting table is symmetrically provided with push plates, which slide on the side wall of the tilting table through a sliding block assembly. The side wall of the tilting table is also symmetrically fixed with a fixing plate, on which an electromagnetic generator is installed. A magnet is fixed to the end of the push plate facing the electromagnetic generator. The side wall of the tilting table is also symmetrically provided with lifting cavities, and a lower pressure plate for sliding the push positioning rod is provided in the lifting cavity.

[0014] The lower pressure plate slides up and down in the lifting cavity via the first reset spring. The lower pressure plate has a third chamfer and a second chamfer on the side facing the positioning rod and the push plate, respectively. The push plate abuts against the second chamfer. The positioning rod has an end plate on the side facing the third chamfer, which abuts against the third chamfer.

[0015] Preferably, the outer wall of the flipping table is symmetrically provided with end rods, and the moving ring is provided with a C-shaped sliding hole. The flipping table slides in the C-shaped sliding hole through the end rods. The moving ring moves at the bottom of the pressing sliding bracket through the first sliding shaft and the limiting plate arranged coaxially. The bottom of the pressing sliding bracket is provided with a rotating cavity with a cross section of T. The first sliding shaft and the limiting plate arranged coaxially slide in the rotating cavity.

[0016] Preferably, the bottom of the first sliding shaft is provided with a through hole, and the symmetrical sidewalls of the through hole are provided with side cavities, and a side plate slides in the side cavity. The side plate slides in the side cavity through a third reset spring. The first sliding shaft and the limiting plate are coaxially provided with a rod hole, and a top rod slides in the rod hole. The rod hole is connected to the two side cavities through an oil groove.

[0017] Preferably, the end rod has a first chamfer symmetrically formed on the side facing the side plate to push against the side plate, and a gap is left between the two opposite side plates. The top of the rotating cavity has a plurality of equidistant top strip grooves, and the width of the top strip grooves is the same as the diameter of the push rod.

[0018] Preferably, the movable ring sidewall is provided with a side frame, the sliding bracket is fixed to the sidewall of the sliding support, and the movable frame slides inside the sliding bracket. Both ends of the movable frame are provided with telescopic components, and both ends of the telescopic components are rotatably connected to the movable frame and the side frame respectively through the shaft assembly.

[0019] Preferably, the telescopic assembly includes a sleeve that slides coaxially and a swing rod, and the outer wall of the sleeve is provided with a pre-tightening bolt for pressing and limiting the swing rod.

[0020] Preferably, a drive motor is provided on the outer wall of the sliding frame, and a rotating screw is provided at the output end of the drive motor. A threaded hole is provided on the moving frame, and the rotating screw drives the moving frame to slide on the sliding frame through the threaded hole.

[0021] The beneficial effects of this invention are as follows:

[0022] 1. The present invention has a metal strip for cutting thermoplastic plastics below the pressing sliding bracket. It should be noted that the metal strip has two functions: first, it provides a mounting carrier for the laser cutting blade and provides support for the installation of the laser cutting blade; second, the metal strip itself does not carry the laser cutting blade, but relies on an external heating device to conduct heat into the metal strip. When the heated metal strip is pressed down and close to the thermoplastic plastic sheet, it can achieve the thermal cutting effect.

[0023] 2. In this invention, when the side of the metal strip facing the thermoplastic sheet is the wide side, the metal strip in this state is extremely difficult to bend in the horizontal direction. This allows the metal strip to laser cut the thermoplastic sheet with the laser cutting blade, or the metal strip itself to thermally cut the thermoplastic sheet, ensuring a straight cut. Compared to traditional cutting, there is no need to consider calibrating and straightening the cut.

[0024] 3. In this invention, when the side of the metal strip facing the thermoplastic sheet is narrow, the metal strip is easy to bend in the horizontal direction. Under the action of external force, it can be bent into metal strips with different curvatures. Combined with the laser cutting blade or the metal strip itself to perform hot cutting on the thermoplastic sheet, the thermoplastic sheet can be cut in an arc shape. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the automatic shearing and processing equipment for packaging materials proposed in this invention;

[0026] Figure 2 for Figure 1 Enlarged structural diagram at point A;

[0027] Figure 3 This is a diagram showing the straight hot-cut state of the automatic shearing and processing equipment for packaging materials proposed in this invention;

[0028] Figure 4This is a top view of the straight hot cutting process in the automatic shearing equipment for packaging materials proposed in this invention;

[0029] Figure 5 This is a diagram showing the bending and hot-cutting state of the packaging material in the automatic shearing and processing equipment proposed in this invention;

[0030] Figure 6 This is a top view of the bending and hot cutting process in the automatic shearing equipment for packaging materials proposed in this invention;

[0031] Figure 7 This is a schematic diagram of the structure of the metal strip in the automatic shearing and processing equipment for packaging materials proposed in this invention;

[0032] Figure 8 for Figure 7 Enlarged structural diagram at point B;

[0033] Figure 9 Plastic packaging material that has been cut;

[0034] Figure 10 This is a schematic diagram of the structure of the turning table in the automatic shearing and processing equipment for packaging materials proposed in this invention;

[0035] Figure 11 for Figure 10 Enlarged structural diagram at point C;

[0036] Figure 12 This is a schematic diagram of the structure of the first sliding shaft in the automatic shearing and processing equipment for packaging materials proposed in this invention;

[0037] Figure 13 This is a diagram showing the positioning state of the first sliding shaft in the automatic shearing and processing equipment for packaging materials proposed in this invention.

[0038] In the diagram: 1. Pressing sliding bracket; 2. Sliding frame; 3. Drive motor; 4. Rotating lead screw; 5. Moving frame; 6. Sleeve; 7. Swing rod;

[0039] 8. Metal strip; 81. Elastic metal strip body; 82. Side protective strip; 83. Smoke trough; 84. Inner cavity; 85. Smoke hole; 86. Positioning hole;

[0040] 9. Moving ring; 10. C-shaped sliding hole; 11. Side frame; 12. End rod; 13. First chamfer; 14. Push plate; 15. Magnet block; 16. Fixing plate; 17. Electromagnetic generator; 18. Tilting table; 19. Mounting hole; 20. Lower pressure plate; 21. Second chamfer; 22. Third chamfer; 23. Lifting cavity; 24. First return spring; 25. Protruding plate; 26. Positioning rod; 27. End plate; 28. Second return spring; 29. ​​Shaft assembly; 30. First sliding shaft; 31. Side plate; 32. Limiting plate; 33. Rotating cavity; 34. Top strip groove; 35. Side cavity; 36. Third return spring; 37. Oil groove; 38. Top rod. Detailed Implementation

[0041] Reference Figures 1-13 The automatic shearing and processing equipment for packaging materials includes a pressing and sliding support 1, and a suction fan for absorbing smoke is also installed on the pressing and sliding support 1, as shown in the reference. Figure 9 The thermoplastic sheet shown is the sheet to be cut and formed in this application. The four corners have rounded holes for securing bottled products. Therefore, for... Figure 9 The creation of shapes requires both straight-line cutting and curved cutting.

[0042] Reference Figure 7 and Figure 8 In this state, a metal strip 8 for cutting thermoplastic is located below the sliding bracket 1. It should be noted that the metal strip 8 has two functions:

[0043] Firstly, it provides a mounting platform for the laser cutting blade, offering support for its installation.

[0044] Secondly, the metal strip 8 itself does not carry a laser cutting blade. It relies on an external heating device to conduct heat into the metal strip 8. When the heated metal strip 8 is pressed down and close to the thermoplastic sheet, it can achieve the hot cutting effect.

[0045] Furthermore, the metal strip 8 is an elastic metal strip. Compared with traditional metal wire, the metal strip 8 itself has two forms. When the metal strip 8 is placed horizontally, the side of the metal strip 8 facing the thermoplastic sheet is the wide side. In this state, the metal strip 8 is extremely difficult to bend in the horizontal direction, which allows the metal strip 8 to laser cut the thermoplastic sheet with the laser cutting blade, or the metal strip 8 itself to hot cut the thermoplastic sheet. Both can ensure that the cut is straight. Compared with traditional cutting, there is no need to consider the calibration and straightening of the cut.

[0046] When the side of the metal strip 8 facing the thermoplastic sheet is narrow, the metal strip 8 is easy to bend in the horizontal direction. Under the action of external force, it can be bent into metal strips 8 with different curvatures. Combined with the laser cutting blade or the metal strip 8 itself to hot cut the thermoplastic sheet, the thermoplastic sheet can be cut in an arc shape.

[0047] Reference Figure 8 As shown, the metal strip 8 includes an elastic metal strip body 81, with side protective strips 82 symmetrically arranged on both sides of the elastic metal strip body 81, and a smoke extraction groove 83 between the elastic metal strip body 81 and the side protective strips 82. The side protective strips 82 ensure that when the hot cutting and thermoplastic sheet come into direct contact, the corresponding molten plastic will not directly enter the smoke extraction hole 85 and cause blockage to the smoke extraction hole 85. At the same time, it also ensures that the smoke extraction groove 83 is normally unobstructed, allowing the smoke generated by hot cutting or laser cutting to enter the smoke extraction groove 83.

[0048] The metal strip 8 also includes an inner cavity 84, which is formed on the elastic metal strip body 81. The smoke extraction groove 83 is connected to the inner cavity 84 through the smoke extraction hole 85. The suction fan is installed at both ends of the metal strip 8 to extract air from the inner cavity 84. Therefore, the fumes generated during the cutting process will be sucked into the inner cavity 84 through the smoke extraction groove 83 and the smoke extraction hole 85, and finally collected by the suction fan. This avoids the operator from directly inhaling the fumes during the cutting process, thus preventing safety hazards.

[0049] The metal strip 8 is equipped with multiple laser cutting blades. It should be noted that the laser cutting blades are existing technology and will not be elaborated on here. The multiple laser cutting blades are installed on the side of the metal strip 8 facing the thermoplastic sheet. When making a straight cut, the thermoplastic sheet can be cut by simply pulling the moving ring 9, which moves the metal strip 8 together with the moving ring 9.

[0050] Reference Figure 10 and Figure 11 In the state, the flipping table 18 has a mounting hole 19 that matches the cross section of the metal strip 8. The mounting hole 19 has a protruding plate 25 that matches the smoking trough 83. The protruding plate 25 has a telescopic and sliding positioning rod 26. The positioning rod 26 is reset and telescopically extended by the second return spring 28. The bottom of the smoking trough 83 has positioning holes 86 that are equidistantly arranged. The flipping table 18 is positioned on the elastic metal strip body 81 by the positioning rod 26 and the positioning hole 86. Therefore, the flipping table 18 can be positioned on the metal strip 8 by snapping, which avoids the relative displacement between the flipping table 18 and the metal strip 8 during the movement.

[0051] The rotating platform 18 is symmetrically provided with push plates 14 on its side wall. The push plates 14 slide on the side wall of the rotating platform 18 through the slide block assembly. The side wall of the rotating platform 18 is also symmetrically fixed with a fixing plate 16. An electromagnetic generator 17 is installed on the fixing plate 16. A magnet block 15 is fixed to the end of the push plate 14 facing the electromagnetic generator 17. The side wall of the rotating platform 18 is also symmetrically provided with a lifting cavity 23. The lifting cavity 23 is provided with a lower pressure plate 20 that slides on the push positioning rod 26. When it is necessary to position the rotating platform 18 and the metal strip 8 relative to each other, it is only necessary to turn on the electromagnetic generator 17 and generate a magnetic pole opposite to that of the magnet block 15 to attract the push plate 14. Then, the push plate 14 has a pushing tendency to push the lower pressure plate 20.

[0052] The lower pressure plate 20 slides and moves up and down in the lifting chamber 23 via the first return spring 24. The lower pressure plate 20 has a third chamfer 22 and a second chamfer 21 on the side facing the positioning rod 26 and the push plate 14, respectively. The push plate 14 abuts against the second chamfer 21. The positioning rod 26 has an end plate 27 on the side facing the third chamfer 22, which abuts against the third chamfer 22. Therefore, under the pushing action of the push plate 14, the lower pressure plate 20 will be pressed down, and the positioning rod 26 will have a tendency to slide to the right due to the pushing action of the third chamfer 22 and the end plate 27. When it is necessary to position the flip table 18 and the metal strip 8, it is only necessary to turn on the electromagnetic generator 17 to make the positioning rod 26 have a tendency to slide to the right. At this time, the flip table 18 and the metal strip 8 will slide relative to each other. When the positioning rod 26 is coaxial with the positioning hole 86, the positioning rod 26 will be inserted into the positioning hole 86, thus completing the positioning of the flip table 18 and the metal strip 8.

[0053] Reference Figure 1 and Figure 3 In the current state, two sliding rings 9 are mounted on the sliding bracket 1. The metal strip 8 rotates coaxially within the sliding rings 9 via the flipping table 18, changing the contact surface of the metal strip 8 cutting the thermoplastic sheet. Therefore, by changing the orientation of the metal strip 8 toward the thermoplastic sheet, the bending state of the metal strip 8 can be adjusted. The specific adjustment method is as follows:

[0054] First, since the outer side wall of the tilting table 18 is symmetrically provided with end rods 12 and the moving ring 9 is provided with C-shaped sliding holes 10, the tilting table 18 slides in the C-shaped sliding holes 10 through the end rods 12, thus enabling the tilting table 18 to rotate coaxially on the moving ring 9. It should be noted that the C-shaped sliding holes 10 and the end rods 12 slide through a protrusion and groove structure, which provides support for the coaxial rotation of the tilting table 18 on the moving ring 9, and also prevents the rotation of the tilting table 18 from disengaging from the C-shaped sliding holes 10.

[0055] It should be noted that the C-shaped sliding hole 10 is a 3 / 4 annular hole. One end of the C-shaped sliding hole 10 is located in the horizontal plane, while the other end is located in the vertical plane. This allows the C-shaped sliding hole 10 to provide support for the tilting table 18 with the end rod 12. The C-shaped sliding hole 10 located in the horizontal plane provides a horizontal limit for the tilting table 18. Figure 2 The state prevents the tilting table 18 from over-tilting and ensures that the metal strip 8 connected to the tilting table 18 is in a wide state facing the thermoplastic sheet. Similarly, when the tilting table 18 is tilted, the end rod 12 abuts against the C-shaped sliding hole 10 located at one end of the vertical plane, which can provide a vertical limit for the tilting table 18, prevent the tilting table 18 from over-tilting, and ensure that the metal strip 8 connected to the tilting table 18 is in a narrow state facing the thermoplastic sheet.

[0056] It should be noted that the driving force for the coaxial rotation of the tilting table 18 within the moving ring 9 is achieved by a hydraulic rod or manual actuation, which flips the tilting table 18. Then, the tilting table 18 is fixed within the moving ring 9 using fixing bolts. These fixing bolts rotate with the moving ring 9 through positioning threaded holes and abut against the end rod 12, thus securing the end rod 12 within the C-shaped sliding hole 10. Ultimately, this achieves the effect of fixing the tilting table 18 within the moving ring 9.

[0057] Reference Figure 12 and Figure 13 In the state, the moving ring 9 moves at the bottom of the pressing sliding bracket 1 via the coaxially arranged first sliding shaft 30 and limiting plate 32. The bottom of the pressing sliding bracket 1 has a T-shaped rotating cavity 33. The coaxially arranged first sliding shaft 30 and limiting plate 32 slide in the rotating cavity 33. It should be noted that the T-shaped rotating cavity 33 at the bottom of the pressing sliding bracket 1 not only provides sliding for the limiting plate 32, but also provides space for the rotation of the limiting plate 32.

[0058] Reference Figure 2 , Figure 12 and Figure 13When the bottom of the first sliding shaft 30 is provided with a through hole, and the symmetrical sidewalls of the through hole are provided with side cavities 35, and a side plate 31 slides in the side cavity 35, the side plate 31 slides and extends within the side cavity 35 by means of a third return spring 36, the end rod 12 is provided with a first chamfer 13 symmetrically provided on the side facing the side plate 31 to push the side plate 31, and a gap is left between the two oppositely provided side plates 31, and the top of the rotating cavity 33 is provided with a plurality of equidistantly arranged top strip grooves 34, the top... The width of the strip groove 34 is the same as the diameter of the top rod 38. It should be noted that during the process of driving the tilting table 18 to rotate coaxially within the moving ring 9, the first chamfer 13 on the end rod 12 will push the two side plates 31. The side cavity 35 and the oil tank 37 are filled with water, which is an anti-boiling liquid. At the same time, the end rod 12 is made of heat-insulating material to prevent the heat of the metal strip 8 from being transferred to the water. Thus, when the side plates 31 are squeezed, they push the water along with the side plates 31.

[0059] The first sliding shaft 30 and the limiting plate 32 are coaxially connected by a rod hole, and a top rod 38 slides in the rod hole. The rod hole is connected to the two side cavities 35 through the oil groove 37. It should be noted that the bottom of the top rod 38 is provided with a rubber block. The top rod 38 slides in the rod hole through the rubber block. When the side plate 31 is squeezed and pushed by water, it can push the rubber block and drive the top rod 38 in the rod hole to rise. At this time, the top rod 38 will be inserted into the top strip groove 34. Therefore, in this state, the side of the metal strip 8 facing the thermoplastic sheet is the narrow side, and the moving ring 9 is positioned by the top rod 38, so it can only rotate and cannot slide. It should be noted that the positioning of the metal strip 8 by the flipping table 18 does not need to be activated at this time.

[0060] A flipping drive is provided on the sliding support 1 to drive two symmetrically arranged moving rings 9 to rotate and cause the metal strip 8 to bend. The flipping drive includes a side frame 11, which is set on the side wall of the moving rings 9. A sliding frame 2 is fixed to the side wall of the sliding support 1, and a moving frame 5 slides inside the sliding frame 2. Both ends of the moving frame 5 are provided with telescopic components, which are rotatably connected to the moving frame 5 and the side frame 11 respectively through a shaft assembly 29. A drive motor 3 is provided on the outer wall of the sliding frame 2, and a rotating lead screw 4 is provided at the output end of the drive motor 3. The moving frame 5 has a threaded hole, and the rotating lead screw 4 drives the moving frame 5 to slide on the sliding frame 2 through the threaded hole. Therefore, when the drive motor 3 is turned on, the drive motor 3 rotates the lead screw, which causes the moving frame 5 to slide. With the movement of the telescopic components, the metal strip 8 can be bent. At this time, the positioning of the flipping table 18 and the metal strip 8 needs to be activated to stabilize the shape of the metal strip 8, thereby realizing the bending of the metal strip 8. Figure 3 and Figure 4 The state of bending into Figure 5 and Figure 6This process ultimately enables the straight-line and curved cutting of thermoplastic sheets.

[0061] It should be noted that the distance between two adjacent flipping tables 18 can be adjusted according to the different arc shapes. Since the telescopic component includes a coaxially sliding sleeve 6 and a swing rod 7, the outer wall of the sleeve 6 is provided with a pre-tightening bolt to tighten and limit the swing rod 7. After the distance is adjusted, the positioning disk 32 is positioned and rotated in the rotating cavity 33. Then, the drive motor 3 is turned on, and when the metal strip 8 is bent to the required angle, the sleeve 6 and the swing rod 7 are fixed with the pre-tightening bolt, thus finally achieving positioning. Therefore, from the above operation, a straight metal strip 8 with the wide side facing the thermoplastic sheet and a bent metal strip 8 with the narrow side facing the thermoplastic sheet can be obtained.

[0062] The working principle of this invention is as follows:

[0063] First, adjust the distance between two adjacent flipping tables 18. At this time, the side of the metal strip 8 facing the thermoplastic sheet is the wide side. In this state, the metal strip 8 is extremely difficult to bend in the horizontal direction, so that the metal strip 8 with the laser cutting blade can laser cut the thermoplastic sheet, or the metal strip 8 itself can hot cut the thermoplastic sheet. Both can ensure that the cut is straight. Compared with traditional cutting, there is no need to consider the calibration and straightening of the cut.

[0064] Then, the driving force for the rotating table 18 to rotate coaxially within the moving ring 9 is achieved by a hydraulic rod or manual actuation, which flips the table 18. The table 18 is then fixed within the moving ring 9 by fixing bolts. At this point, the side of the table 18 with the metal strip 8 facing the thermoplastic sheet is narrow. The metal strip 8 is easy to bend in the horizontal direction and can be bent into metal strips 8 with different curvatures under external force. Combined with the laser cutting blade or the metal strip 8 itself, the thermoplastic sheet can be hot-cut in an arc shape.

[0065] Then, since the suction fan is installed at both ends of the metal strip 8 to draw air from the inner cavity 84, the fumes generated during the cutting process will be drawn into the inner cavity 84 through the smoke extraction hole 85 from the smoke extraction slot 83, and finally collected by the suction fan, thus avoiding the operator's direct inhalation of fumes during the cutting process and thus avoiding safety hazards.

[0066] During the process of the drive tilting table 18 rotating coaxially within the moving ring 9, the first chamfer 13 on the end rod 12 will push the two side plates 31 rod holes to communicate with the two side cavities 35 through the oil groove 37. It should be noted that the bottom of the top rod 38 is provided with a rubber block. The top rod 38 slides in the rod hole through the rubber block. When the side plates 31 are squeezed and pushed by water, they can push the rubber block and drive the top rod 38 in the rod hole to rise. At this time, the top rod 38 will be inserted into the top strip groove 34. Therefore, in this state, the surface of the metal strip 8 facing the thermoplastic sheet is a narrow surface, and the moving ring 9 is positioned by the top rod 38, so it can only rotate and cannot slide.

[0067] Finally, turn on the drive motor 3, causing the lead screw to rotate. This will cause the moving frame 5 to slide, and in conjunction with the movement of the telescopic component, it will cause the metal strip 8 to bend. At this point, the positioning of the tilting table 18 and the metal strip 8 needs to be activated to stabilize the shape of the metal strip 8, thereby achieving the bending motion from the tilting table 18 to the metal strip 8. Figure 3 and Figure 4 The state of bending into Figure 5 and Figure 6 This process ultimately enables the straight-line and curved cutting of thermoplastic sheets.

[0068] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An automatic shearing and processing equipment for packaging materials, comprising a pressing and sliding support, and a suction fan for absorbing fumes mounted on the pressing and sliding support, characterized in that, Below the pressing and sliding bracket is a metal strip for cutting thermoplastic. The metal strip is an elastic metal bar with multiple laser cutting blades. Two moving rings are slidably mounted on the pressing and sliding bracket. The metal strip rotates coaxially within the moving rings via a tilting table, changing the contact surface between the metal strip and the thermoplastic. The pressing and sliding bracket is equipped with a tilting drive that drives the two symmetrically arranged moving rings to rotate and bend the metal strip. The metal strip includes: The elastic metal strip body has symmetrical side protective strips on both sides, and there is a smoke extraction groove between the elastic metal strip body and the side protective strips. The inner cavity is formed on the elastic metal strip body, and the smoke tray is connected to the inner cavity through the smoke hole. The bottom of the smoke tray has positioning holes that are equidistantly arranged. The flipping table has mounting holes that are adapted to the cross-section of the metal strip. The mounting holes have protruding plates that are adapted to the smoke tray. The protruding plates have telescopic and sliding positioning rods. The positioning rods are reset and telescopically extended by a second reset spring. The flipping table is positioned on the elastic metal strip body by the positioning rods and the positioning holes. The side walls of the flipping table are symmetrically provided with push plates. The push plates slide on the side walls of the flipping table through the slide block assembly. The side walls of the flipping table are also symmetrically fixed with fixing plates. An electromagnetic generator is installed on the fixing plates. A magnet is fixed to the end of the push plate facing the electromagnetic generator. The side walls of the flipping table are also symmetrically provided with lifting cavities. The lifting cavities have lower pressure plates that push the positioning rods to slide. The lower pressure plate slides up and down in the lifting cavity via the first return spring. The lower pressure plate has a third chamfer and a second chamfer on the side facing the positioning rod and the push plate, respectively. The push plate abuts against the second chamfer. The positioning rod has an end plate on the side facing the third chamfer, which abuts against the third chamfer. The outer wall of the flipping table has symmetrical end rods. The moving ring has a C-shaped sliding hole. The flipping table slides in the C-shaped sliding hole via the end rod. The moving ring moves at the bottom of the pressing sliding bracket via a first sliding shaft and a limiting plate arranged coaxially. The bottom of the pressing sliding bracket has a rotating cavity with a T-shaped cross section. The first sliding shaft and the limiting plate arranged coaxially slide in the rotating cavity.

2. The automatic shearing and processing equipment for packaging materials according to claim 1, characterized in that, The bottom of the first sliding shaft has a through hole, and the symmetrical side wall of the through hole has a side cavity. A side plate slides in the side cavity, and the side plate slides in and out of the side cavity by means of a third reset spring. The first sliding shaft and the limiting plate are coaxially connected by a rod hole, and a top rod slides in the rod hole. The rod hole is connected to the two side cavities through an oil groove.

3. The automatic shearing and processing equipment for packaging materials according to claim 2, characterized in that, The end rod has a first chamfer symmetrically opened on the side of the side plate to push against the side plate. There is a gap between the two side plates that are arranged opposite each other. The top of the rotating cavity has multiple top strip grooves arranged at equal intervals. The width of the top strip grooves is the same as the diameter of the push rod.

4. The automatic shearing and processing equipment for packaging materials according to claim 1, characterized in that, The movable ring has a side frame on its side wall. A sliding frame is fixed to the side wall of the sliding bracket, and a movable frame slides inside the sliding frame. Both ends of the movable frame are equipped with telescopic components. The two ends of the telescopic components are rotatably connected to the movable frame and the side frame respectively through the shaft assembly.

5. The automatic shearing and processing equipment for packaging materials according to claim 4, characterized in that, The telescopic assembly includes a sleeve that slides coaxially and a swing rod. The outer wall of the sleeve is provided with a preload bolt that tightens and limits the swing rod.

6. The automatic shearing and processing equipment for packaging materials according to claim 5, characterized in that, A drive motor is provided on the outer wall of the sliding frame, and a rotating screw is provided at the output end of the drive motor. A threaded hole is provided on the moving frame, and the rotating screw drives the moving frame to slide on the sliding frame through the threaded hole.

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