Degradable woven bag processing laser cutting machine

Abstract

This invention relates to the field of woven bag processing technology and discloses a laser cutting machine for biodegradable woven bags. The machine includes a main support frame, on which an upper pressure roller and a lower support roller are rotatably mounted in a vertically arranged manner. A main motor is installed on the frame wall of the main support frame, and one end of the lower support roller passes through the frame wall of the main support frame and connects to the rotating end of the main motor. A take-up roller for winding woven fabric is rotatably mounted on the other side of the main support frame. A drive component, a cutting component, and a flattening component are provided on one side of the main support frame. An electric cylinder drives a side plate to move, and a third oblique guide groove on the side plate guides a guide block, causing a horizontal bar to drive the flattening roller downwards and press it against the surface of the woven fabric. This allows for the adjustment of some localized loose parts, improving cutting quality. Furthermore, during cutting, the flattening roller remains pressed against the woven fabric, reducing fabric displacement during the cutting process. Intelligent heat treatment components ensure the quality of the cut.

Description

Technical Field

[0001] This invention relates to the technical field of woven bag processing, and more particularly to a laser cutting machine for processing biodegradable woven bags. Background Technology

[0002] Biodegradable woven bags are packaging bags made from biodegradable materials. These materials can decompose into harmless substances in the natural environment within a certain time through physical, chemical, or biological processes, effectively reducing the environmental pollution problems caused by traditional woven bags. Their raw materials typically include biodegradable polymers such as polylactic acid (PLA) and polybutylene adipate / terephthalate (PBAT). These materials give the woven bags good flexibility and strength, enabling them to meet packaging requirements while possessing environmentally friendly characteristics. Biodegradable woven bags are widely used in agriculture, food, chemicals, and other fields for containing various items, promoting the sustainable development of the packaging industry. It plays a key role in the exhibition; when processing biodegradable woven bags, it is usually necessary to cut the rolled woven fabric for subsequent printing, sewing and other processes. Laser cutting technology, with its high energy density laser beam, can quickly melt or vaporize the woven fabric to achieve high-precision, narrow-kerf cutting effect. It can be applied to the cutting of woven fabric. In integrated production lines, heat treatment can be used as a pre-process for laser cutting. For example, after using an infrared heater to locally heat the material, laser cutting can be performed, which can significantly improve processing efficiency and reduce heat damage. However, in the field of woven fabric cutting and processing, the application of this heat treatment process is uneven.

[0003] The existing technology still has the following problems:

[0004] 1. Currently, when cutting woven fabric, the end to be cut is usually placed directly on the cutting table, and the woven fabric is in a relatively relaxed state. In this relaxed state, the tension uniformity of the woven fabric is extremely poor. During the cutting process, the woven fabric is very prone to displacement and shaking. The cutting equipment is difficult to accurately cut according to the preset path, the cutting size deviation occurs frequently, and the cutting edge is also difficult to ensure neatness, which seriously affects the cutting quality.

[0005] 2. Currently, the woven fabric is not preheated before being cut into blocks. This causes the woven fabric to heat up rapidly when the laser cutting head cuts it. If the initial temperature of the woven fabric is too low and the temperature gradient change is too large, thermal stress is easily generated, which may lead to thermal damage such as deformation and embrittlement of the woven fabric, affecting the quality and performance of the woven bags. Summary of the Invention

[0006] In view of the problems existing in the prior art, a laser cutting machine for processing biodegradable woven bags is proposed.

[0007] The technical solution of the present invention is as follows: a laser cutting machine for processing biodegradable woven bags, comprising a main support frame, an upper pressure roller and a lower support roller rotatably arranged vertically on the frame wall of the main support frame, a main motor installed on the frame wall of the main support frame, and one end of the lower support roller passing through the frame wall of the main support frame and connected to the rotating end of the main motor.

[0008] On the other side of the main support frame, a take-up roller for winding the woven fabric is rotatably provided;

[0009] One side of the main support is provided with a driving component, a cutting component, and a flattening component;

[0010] Both the cutting component and the flattening component are connected to the driving component via transmission.

[0011] The driving component is used to drive the cutting component to move, so as to cut the woven fabric;

[0012] The driving component is used to drive the flattening component to move, so as to flatten the woven fabric.

[0013] Furthermore, the driving component includes an electric cylinder, which is mounted on the wall of the main support. The telescopic end of the electric cylinder is provided with a push plate, and both ends of the push plate are provided with side plates. The side plates are transversely provided with a first oblique guide groove, a first horizontal guide groove, a second oblique guide groove, a second horizontal guide groove, a third oblique guide groove, a third horizontal guide groove, and a fourth oblique guide groove.

[0014] Furthermore, the top end of the first inclined guide groove is connected to one end of the first horizontal guide groove, the other end of the first horizontal guide groove is connected to the top end of the second inclined guide groove, the bottom end of the second inclined guide groove is connected to one end of the second horizontal guide groove, the first inclined guide groove and the second inclined guide groove are symmetrically arranged, and one end of the third horizontal guide groove is connected to the top end of the fourth inclined guide groove.

[0015] Furthermore, the cutting component includes a mounting frame, the bottom of which is connected to the wall of the main support. Four vertical sliding rods are symmetrically arranged on the wall of the mounting frame, and a cross frame is slidably sleeved through the four vertical sliding rods. A sliding block is slidably arranged on the inner side of the cross frame, and a laser cutting head is installed at the lower part of the sliding block. A drive motor is installed on the wall of the cross frame. A transverse threaded rod is threaded through the sliding block. One end of the transverse threaded rod is rotatably connected to the inner side of the cross frame, and the other end of the transverse threaded rod passes through the wall of the cross frame and is connected to the rotating end of the drive motor. Two fixed rods are symmetrically connected on both sides of the bottom of the cross frame, and a first guide roller is rotatably connected to the bottom of the fixed rod.

[0016] Furthermore, the leveling component includes two fixing strips symmetrically arranged. The bottom end of each fixing strip is connected to the wall of the main support. The top ends of the two fixing strips are connected to a support plate. A horizontal bar is arranged above the support plate. Two lifting sleeves are symmetrically connected to both ends of the horizontal bar. A guide block is connected to the block wall of the lifting sleeve. Several vertical sliding columns are longitudinally slidably connected to the horizontal bar. The bottom ends of the several vertical sliding columns are connected to a mounting base. A leveling roller is rotatably connected to the lower part of the mounting base. A first elastic element is sleeved on the vertical sliding column. The top end of the first elastic element is connected to the bottom of the horizontal bar, and the bottom end of the first elastic element is connected to the top of the mounting base.

[0017] Furthermore, a material unloading component is provided on one side of the main support. The material unloading component includes a support plate, which is rotatably connected to one side of the pallet. A vertical guide rod is slidably connected longitudinally through the lifting sleeve. A horizontal bar is connected to one side of the bottom end of the vertical guide rod. Guide strips corresponding to the horizontal bars are connected to the frame wall of the main support. The horizontal bars are slidably connected to the corresponding guide strips. A second elastic element is sleeved on the horizontal bar. One end of the second elastic element is fixedly connected to the strip wall of the guide strip, and the other end of the second elastic element is connected to the rod wall of the vertical guide rod. Two fixing blocks are symmetrically connected to the bottom of the support plate. A second guide roller is rotatably connected to the lower part of the fixing blocks.

[0018] Furthermore, the main support is also equipped with an intelligent heat treatment component, which includes a preheating box. The preheating box is fixedly connected to the wall of the main support. An infrared heater is fixedly installed on the inner side of the preheating box. Both sides of the preheating box are transversely opened with a fabric insertion port for the woven fabric to pass through.

[0019] Furthermore, the first guide roller is disposed in the first inclined guide groove, and the first inclined guide groove, the first horizontal guide groove, the second inclined guide groove and the second horizontal guide groove are all adapted to the first guide roller.

[0020] Furthermore, the guide block is disposed within the third inclined guide groove, and the guide block is adapted to the third inclined guide groove.

[0021] Furthermore, the second guide roller is disposed within the third horizontal guide groove, and the second guide roller is adapted to the third horizontal guide groove.

[0022] The beneficial effects of this invention are:

[0023] 1. The side plate is moved by an electric cylinder. The third oblique guide groove on the side plate guides the guide block, causing the horizontal bar to drive the flattening roller to move downward and press against the surface of the woven fabric. The flattening roller maintains a tight grip on the woven fabric through the sliding cooperation between the vertical sliding column and the horizontal bar, as well as the elastic compression of the first elastic element. It rolls on the woven fabric, which can adjust some local slack parts, thereby improving the tension uniformity. In this way, the woven fabric can maintain a more stable shape during cutting, which is conducive to improving the cutting quality. Furthermore, the flattening roller keeps pressing on the woven fabric during cutting, which effectively reduces the displacement of the woven fabric during the cutting process, thereby improving the cutting accuracy and ensuring the cutting quality.

[0024] 2. By setting up intelligent heat treatment components, the preheating box is heated by infrared heaters before cutting, which raises the temperature of the woven fabric inside. Preheating the woven fabric by infrared heaters in advance can reduce the temperature gradient during cutting, make the woven fabric heated more evenly, reduce the generation of thermal stress, and thus effectively improve the cutting quality of the laser cutting head and reduce thermal damage.

[0025] 3. After the woven fabric is cut, the electric cylinder continues to extend, and the second guide roller enters the fourth inclined guide groove. Under its guidance, the second guide roller drives the support plate to rotate along the rotation point connected to the pallet, causing the end of the support plate away from the pallet to flip downwards. This allows the woven fabric that has been cut on the support plate to automatically slide down under its own gravity, completing the unloading process and improving work efficiency.

[0026] 4. By driving the cutting and leveling components to move, the laser cutting head can avoid the leveling component and return to the cutting height after avoiding it, thus meeting the cutting requirements. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 This is an overall sectional view of the present invention;

[0029] Figure 3 This is a partial structural diagram of the present invention;

[0030] Figure 4 This is a schematic diagram of the main support structure in this invention;

[0031] Figure 5 This is a schematic diagram of the structure of the electric cylinder in this invention;

[0032] Figure 6 This is a schematic diagram of the structure of the side plate in this invention;

[0033] Figure 7This is a schematic diagram of the structure of the driving component in this invention;

[0034] Figure 8 This is a schematic diagram of the structure of the cutting component in this invention;

[0035] Figure 9 This is a schematic diagram of the structure of the sliding block in this invention;

[0036] Figure 10 This is a schematic diagram of the structure of the flattening component in this invention;

[0037] Figure 11 This is a schematic diagram of the structure of the unloading component in this invention;

[0038] Figure 12 This is a schematic diagram of the structure of the crossbar in this invention.

[0039] The diagram shows: 1. Main support frame; 2. Take-up roller; 3. Main motor; 4. Upper pressure roller; 5. Lower support roller; 6. Drive unit; 61. Electric cylinder; 62. Push plate; 63. Side plate; 64. First oblique guide groove; 65. First horizontal guide groove; 66. Second oblique guide groove; 67. Second horizontal guide groove; 68. Third oblique guide groove; 69. Third horizontal guide groove; 610. Fourth oblique guide groove; 7. Cutting component; 71. Mounting bracket; 72. Vertical slide bar; 73. Horizontal frame; 74. Drive motor; 75. Sliding block; 76. Laser cutting head; 77. 78. Horizontal threaded rod; 79. Fixed rod; 80. First guide roller; 81. Pushing component; 82. Fixed strip; 83. Support plate; 84. Horizontal bar; 85. Lifting sleeve; 86. Guide block; 87. Vertical sliding column; 88. First elastic element; 89. Mounting seat; 90. Pushing roller; 91. Unloading component; 92. Support plate; 93. Guide strip; 94. Fixed block; 95. Second guide roller; 96. Horizontal bar; 97. Second elastic element; 10. Vertical guide rod; 10. Intelligent heat treatment component; 101. Preheating box; 102. Infrared heater; 103. Fabric insertion port. Detailed Implementation

[0040] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0041] Example 1, refer to Figures 1 to 2This invention provides a first embodiment of a laser cutting machine for processing biodegradable woven bags, comprising a main support 1. An upper pressure roller 4 and a lower support roller 5, arranged vertically, are rotatably connected to the frame wall of the main support 1. The upper pressure roller 4 and the lower support roller 5 can be rubber rollers to increase friction with the woven fabric. A main motor 3 is fixedly installed on the frame wall of the main support 1 and is electrically connected to an external control system. One end of the lower support roller 5 passes through the frame wall of the main support 1 and is fixedly connected to the rotating end of the main motor 3. A take-up roller 2 for winding the woven fabric is rotatably connected to the other side of the main support 1. A drive component 6, a cutting component 7, and a flattening component 8 are installed on one side of the main support 1. Both the cutting component 7 and the flattening component 8 are connected to the drive component 6. The drive component 6 drives the cutting component 7 to cut the woven fabric and drives the flattening component 8 to flatten the woven fabric.

[0042] Specifically, the take-up roller 2 is used to wind the biodegradable woven fabric, and the main motor 3 is used to drive the lower support roller 5 to rotate. The lower support roller 5 drives the woven fabric to move on the equipment through the friction between it and the woven fabric. The upper pressure roller 4 and the lower support roller 5 press tightly against the upper and lower surfaces of the woven fabric, respectively, which increases the friction between the woven fabric and the upper pressure roller 4 and the lower support roller 5.

[0043] Reference Figures 1 to 7 The driving component 6 includes an electric cylinder 61, which is electrically connected to an external control system. The electric cylinder 61 is fixedly connected to the wall of the main support 1. A push plate 62 is fixedly connected to the telescopic end of the electric cylinder 61. Side plates 63 are fixedly connected to both ends of the push plate 62. A first oblique guide groove 64, a first horizontal guide groove 65, a second oblique guide groove 66, a second horizontal guide groove 67, a third oblique guide groove 68, a third horizontal guide groove 69, and a fourth oblique guide groove 610 are horizontally opened on the side plates 63. The top end of the first oblique guide groove 64 is connected to one end of the first horizontal guide groove 65, the other end of the first horizontal guide groove 65 is connected to the top end of the second oblique guide groove 66, and the bottom end of the second oblique guide groove 66 is connected to one end of the second horizontal guide groove 67. The first oblique guide groove 64 and the second oblique guide groove 66 are symmetrically arranged. One end of the third horizontal guide groove 69 is connected to the top end of the fourth oblique guide groove 610.

[0044] Specifically, when the electric cylinder 61 is started, the telescopic end extends or retracts, driving the push plate 62 to move. The side plates 63 at both ends of the push plate 62 move synchronously, thereby driving the first inclined guide groove 64, the first horizontal guide groove 65, the second inclined guide groove 66, the second horizontal guide groove 67, the third inclined guide groove 68, the third horizontal guide groove 69, and the fourth inclined guide groove 610. These guide grooves cooperate with the cutting component 7, the flattening component 8, and the unloading component 9 respectively. Through the guiding effect, the movement trajectory and position of the cutting component 7, the flattening component 8, and the unloading component 9 at different stages are precisely controlled, so as to realize the orderly execution of cutting, flattening, and unloading actions.

[0045] Example 2, refer to Figures 1 to 9 This is the second embodiment of the present invention, which differs from the first embodiment in that: the cutting component 7 includes a mounting frame 71, the bottom end of which is fixedly connected to the wall of the main support 1. Four vertical sliding rods 72 are symmetrically fixedly connected to the wall of the mounting frame 71. A horizontal frame 73 is slidably sleeved through the four vertical sliding rods 72. A sliding block 75 is slidably connected to the inner side of the horizontal frame 73. A laser cutting head 76 is fixedly installed at the lower part of the sliding block 75. The laser cutting head 76 is connected to an external control system. A drive motor 74 is fixedly installed on the wall of the horizontal frame 73. The drive motor 74 is connected to the external control system. The sliding block 75 is electrically connected, and a transverse threaded rod 77 is threaded through it. One end of the transverse threaded rod 77 is rotatably connected to the inner side of the cross frame 73, and the other end of the transverse threaded rod 77 passes through the frame wall of the cross frame 73 and is fixedly connected to the rotating end of the drive motor 74. Two fixed rods 78 are symmetrically fixedly connected to the bottom sides of the cross frame 73. The bottom end of the fixed rods 78 is rotatably connected to a first guide roller 79. The first guide roller 79 is set in the first inclined guide groove 64. The first inclined guide groove 64, the first horizontal guide groove 65, the second inclined guide groove 66 and the second horizontal guide groove 67 are all adapted to the first guide roller 79.

[0046] Specifically, when the extension end of the electric cylinder 61 extends and drives the side plate 63 to move, the first oblique guide groove 64 on the side plate 63 guides the first guide roller 79, causing the first guide roller 79 to move upward. The upward movement of the first guide roller 79 drives the fixed rod 78 and the cross frame 73 to slide upward along the vertical slide bar 72, thereby causing the laser cutting head 76 installed at the lower part of the sliding block 75 to move upward. When the first guide roller 79 enters the second oblique guide groove 66, it moves downward, causing the laser cutting head 76 to descend to the initial cutting height. The drive motor 74 is started to drive the transverse threaded rod 77 to rotate. Under the action of the threaded connection, the sliding block 75 slides along the cross frame 73, thereby driving the laser cutting head 76 to perform linear movement. The laser cutting head 76 outputs a laser beam to cut the woven fabric; the rest of the structure is the same as the structure of Embodiment 1.

[0047] Example 3, referring to Figures 1 to 11 This is the third embodiment of the present invention. This embodiment differs from the second embodiment in that: the leveling component 8 includes two fixing bars 81 symmetrically arranged. The bottom end of the fixing bars 81 is fixedly connected to the wall of the main support 1. The top ends of the two fixing bars 81 are jointly fixedly connected to a support plate 82. A horizontal bar 83 is arranged above the support plate 82. Two lifting sleeves 84 are symmetrically fixedly connected to both ends of the horizontal bar 83. Guide blocks 85 are fixedly connected to the block walls of the lifting sleeves 84. Several vertical sliding columns 86 are longitudinally slidably connected through the horizontal bar 83. The bottom ends of the several vertical sliding columns 86 are jointly fixedly connected to a mounting base 88. A leveling roller 89 is rotatably connected to the lower part of the mounting base 88. A first elastic element 87 is sleeved on the vertical sliding column 86. The top end of the first elastic element 87 is fixedly connected to the bottom of the horizontal bar 83, and the bottom end of the first elastic element 87 is fixedly connected to the top of the mounting base 88. The first elastic element 87 can be a spring. The guide block 85 is arranged in the third inclined guide groove 68, and the guide block 85 is adapted to the third inclined guide groove 68.

[0048] Specifically, when the extension end of the electric cylinder 61 extends and drives the side plate 63 to move, the third oblique guide groove 68 on the side plate 63 guides the guide block 85, causing the guide block 85 to move downward, which in turn drives the lifting sleeve 84 and the crossbar 83 to move downward. During the downward movement of the crossbar 83, the flattening roller 89 presses down on the upper surface of the woven fabric. Through the sliding cooperation of the vertical sliding column 86 on the crossbar 83 and the elastic compression of the first elastic element 87, the flattening roller 89 always remains pressed against the woven fabric and rolls on the woven fabric, making the woven fabric flatter and providing a flatter woven fabric for the cutting process. At the same time, it reduces the slack of the woven fabric and improves the cutting accuracy. The rest of the structure is the same as that of Embodiment 2.

[0049] Example 4, refer to Figures 1 to 12 This is the fourth embodiment of the present invention. This embodiment differs from the third embodiment in that: a discharge component 9 is also provided on one side of the main support 1. The discharge component 9 includes a support plate 91, which is rotatably connected to one side of the pallet 82. A vertical guide rod 97 is longitudinally slidably connected through the lifting sleeve 84. A horizontal bar 95 is fixedly connected to one side of the bottom end of the vertical guide rod 97. Guide strips 92 corresponding to the horizontal bars 95 are fixedly connected to the frame wall of the main support 1. The horizontal bars 95 are laterally slidably connected to the corresponding guide strips 92. A second elastic element 96 is sleeved on the horizontal bar 95. One end of the second elastic element 96 is fixedly connected to the strip wall of the guide strip 92, and the other end is fixedly connected to the rod wall of the vertical guide rod 97. The second elastic element 96 can be a spring. Two fixing blocks 93 are symmetrically fixedly connected to the bottom of the support plate 91. A second guide roller 94 is rotatably connected to the lower part of the fixing blocks 93. The second guide roller 94 is disposed in the third horizontal guide groove 69, and the second guide roller 94 is adapted to the third horizontal guide groove 69.

[0050] Specifically, when the telescopic end of the electric cylinder 61 extends, it drives the side plate 63 to move, causing the guide block 85 to move to the bottom of the third inclined guide groove 68. The side plate 63 continues to move, pushing the guide block 85, which in turn drives the lifting sleeve 84 to move. The lifting sleeve 84 pushes the vertical guide rod 97 to move, causing the second elastic element 96 to be elastically compressed. The vertical guide rod 97 drives the horizontal bar 95 to slide on the guide bar 92. The flattening roller 89 moves from the support plate 82 to the support plate 91, always pressing on the woven fabric to keep it flat. After the woven fabric is cut, the electric cylinder 61 continues to extend, and the second guide roller 94 enters the fourth inclined guide groove 610. Under its guidance, the second guide roller 94 drives the support plate 91 to rotate along the rotation point connected to the support plate 82, causing the end of the support plate 91 away from the support plate 82 to flip downward. The woven fabric that has been cut on the support plate 91 automatically slides into the collection box below, completing the unloading action.

[0051] Reference Figure 2 The main support 1 is also equipped with an intelligent heat treatment component 10. The intelligent heat treatment component 10 includes a preheating box 101, which is fixedly connected to the wall of the main support 1. An infrared heater 102 is fixedly installed on the inner side of the preheating box 101. The infrared heater 102 is electrically connected to an external control system. Both sides of the preheating box 101 are horizontally opened with a fabric insertion port 103 for the woven fabric to pass through.

[0052] Specifically, before cutting the woven fabric, the infrared heater 102 is activated. The infrared heater 102 generates heat, which raises the internal temperature of the preheating box 101. When the woven fabric passes through the threading port 103 into the preheating box 101, it is heated and its initial temperature is increased. This reduces the temperature gradient of the woven fabric when the laser cutting head 76 cuts it, making the woven fabric more evenly heated during the cutting process, reducing the generation of thermal stress, thereby reducing thermal damage and improving the cutting quality. The rest of the structure is the same as that in Embodiment 3.

[0053] Reference Figures 1 to 12 The working principle of the laser cutting machine for biodegradable woven bags in this invention is as follows:

[0054] The biodegradable woven fabric for processing biodegradable woven bags is wound onto the take-up roller 2, with one end of the fabric first passing through the fabric inlet 103, and then passing between the upper pressure roller 4 and the lower support roller 5. The upper pressure roller 4 and the lower support roller 5 abut against the upper and lower surfaces of the woven fabric, respectively. The main motor 3 is started, driving the lower support roller 5 to rotate. Under the action of friction and in coordination with the rotation of the upper pressure roller 4, the rotation of the lower support roller 5 drives the woven fabric to move towards the support plate 91, thereby pulling the take-up roller 2 to rotate and gradually release the woven fabric until one end of the woven fabric extends onto the support plate 91 to meet the required cutting length, at which point the intelligent heat treatment is activated. The infrared heater 102 in the heat treatment component 10 raises the internal temperature of the preheating chamber 101, heating the woven fabric inside. This heats the fabric, improving the cutting quality of the subsequent laser cutting head 76 and reducing thermal damage during cutting. When the laser cutting head 76 performs laser cutting, the material rapidly heats up due to absorbing laser energy. If the initial temperature of the material is too low, the temperature gradient change is too large, easily generating thermal stress, leading to material deformation, embrittlement, and other thermal damage. Preheating the woven fabric with the infrared heater 102 reduces the temperature gradient during cutting, resulting in more uniform heating and reducing thermal damage. This reduces the generation of thermal stress, thus effectively reducing thermal damage. Then, the electric cylinder 61 is activated. The extension end of the electric cylinder 61 moves the push plate 62, which in turn moves the two side plates 63 synchronously. As the side plates 63 move forward, the first inclined guide groove 64 guides the first guide roller 79 upwards, while the third inclined guide groove 68 guides the guide block 85 downwards. The third horizontal guide groove 69 guides the second guide roller 94, keeping it in a horizontal position. The upward movement of the first guide roller 79 moves the fixed rod 78 upwards, which in turn moves the crossbar 73 upwards along the vertical slide bar 72. 3. The sliding block 75 drives the laser cutting head 76 to move upward, while the guide block 85 moves downward, driving the lifting sleeve 84 to move the horizontal bar 83 downward. This, in turn, drives the flattening roller 89 to move downward and press against the upper surface of the woven fabric located on the support plate 82. Through the sliding engagement of the vertical sliding column 86 on the horizontal bar 83, and the elastic element 87 being elastically compressed, the flattening roller 89 is kept pressed against the upper surface of the woven fabric. At this time, the guide block 85 moves from the top of the third inclined guide groove 68 to the bottom of the third inclined guide groove 68, and the laser cutting head 76 moves above the horizontal bar 83, which will not interfere with the forward movement of the flattening component 8.During the movement of the guide block 85 from the top to the bottom of the third inclined guide groove 68, the pressure of the external force on the second elastic element 96 is less than the resistance of the second elastic element 96 itself, and the second elastic element 96 does not undergo elastic deformation. At this time, the crossbar 95 does not slide. After the guide block 85 moves to the bottom of the third inclined guide groove 68, the side plate 63 continues to move, pushing the guide block 85 to move the flattening roller 89, thereby causing the flattening roller 89 to roll on the surface of the woven fabric, keeping the woven fabric in a relatively flat state. Subsequently, the first guide roller 79 moves within the first horizontal guide groove 65, keeping the laser cutting head 76 at the current height until the push... After the flat roller 89 moves from below the laser cutting head 76 and is displaced from the cutting component 7, the laser cutting head 76 no longer interferes with the movement of the flattening component 8. At this time, the first guide roller 79 enters the second inclined guide groove 66 and moves downward, causing the laser cutting head 76 to move downward to the initial cutting height. Then, the first guide roller 79 moves from the second inclined guide groove 66 to the second horizontal guide groove 67, and the laser cutting head 76 remains at the current cutting height and no longer moves. The extension end of the control electric cylinder 61 stops extending. At this time, the second guide roller 94 remains in the third horizontal guide groove 69, the support plate 91 is in a horizontal state, and the flattening roller 89 remains in a horizontal position. Pressed firmly onto the woven fabric, with the guide block 85 positioned at the bottom of the third inclined guide groove 68, the side plate 63 moves, pushing the guide block 85 to move, which in turn drives the lifting slide sleeve 84 to move. The lifting slide sleeve 84 pushes the vertical guide rod 97 to move, causing the second elastic element 96 to be elastically compressed. The vertical guide rod 97 drives the horizontal rod 95 to slide on the guide bar 92. The flattening roller 89 moves from the support plate 82 to the support plate 91, always remaining pressed against the woven fabric. As the flattening roller 89 rolls on the woven fabric, it keeps the woven fabric relatively flat and pressed against it, thereby reducing the displacement of the woven fabric during the cutting process and improving the cutting accuracy. Start the drive The drive motor 74 and the laser cutting head 76 drive the transverse threaded rod 77 to rotate. With the threaded connection between the sliding block 75 and the transverse threaded rod 77, the rotation of the transverse threaded rod 77 causes the sliding block 75 to slide along the cross frame 73. The sliding block 75 drives the laser cutting head 76 to move linearly. At the same time, the laser cutting head 76 outputs a laser beam to cut the woven fabric until the woven fabric is cut off. Then the electric cylinder 61 is activated. The telescopic end of the electric cylinder 61 continues to extend. At this time, the first guide roller 79 remains in the second horizontal guide groove 67 and the second elastic element 96 continues to be elastically compressed. The cross bar 95 continues to slide along the guide bar 92.The second guide roller 94 enters the fourth inclined guide groove 610. Under the guidance of the fourth inclined guide groove 610, the second guide roller 94 drives the support plate 91 to rotate along the rotation point connected to the support plate 82, causing the end of the support plate 91 away from the support plate 82 to flip downwards. A collection box for collecting the cut woven fabric is placed below the support plate 91. As the support plate 91 gradually tilts, the cut woven fabric on the support plate 91 automatically slides down into the collection box for collection, thus completing the cutting of one set of woven fabric. Then, the operation is reversed to reset all components before cutting the next set of woven fabric.

[0055] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A laser cutting machine for processing biodegradable woven bags, comprising a main support frame, characterized in that: The main support frame has an upper pressure roller and a lower support roller rotatably mounted on its frame wall, and a main motor is installed on the frame wall of the main support frame. One end of the lower support roller passes through the frame wall of the main support frame and is connected to the rotating end of the main motor. On the other side of the main support frame, a take-up roller for winding the woven fabric is rotatably provided; One side of the main support is provided with a driving component, a cutting component, and a flattening component; Both the cutting component and the flattening component are connected to the driving component via transmission. The driving component is used to drive the cutting component to move, so as to cut the woven fabric; The driving component is used to drive the flattening component to move, so as to flatten the woven fabric; the driving component includes an electric cylinder, which is installed on the frame wall of the main support. The telescopic end of the electric cylinder is provided with a push plate, and both ends of the push plate are provided with side plates. The side plates are transversely provided with a first oblique guide groove, a first horizontal guide groove, a second oblique guide groove, a second horizontal guide groove, a third oblique guide groove, a third horizontal guide groove, and a fourth oblique guide groove. The top end of the first inclined guide groove is connected to one end of the first horizontal guide groove, the other end of the first horizontal guide groove is connected to the top end of the second inclined guide groove, the bottom end of the second inclined guide groove is connected to one end of the second horizontal guide groove, the first inclined guide groove and the second inclined guide groove are symmetrically arranged, and one end of the third horizontal guide groove is connected to the top end of the fourth inclined guide groove. The cutting component includes a mounting frame, the bottom of which is connected to the wall of the main support. Four vertical sliding rods are symmetrically arranged on the wall of the mounting frame. A cross frame is slidably sleeved through the four vertical sliding rods. A sliding block is slidably arranged on the inner side of the cross frame. A laser cutting head is installed at the lower part of the sliding block. A drive motor is installed on the wall of the cross frame. A transverse threaded rod is threaded through the sliding block. One end of the transverse threaded rod is rotatably connected to the inner side of the cross frame. The other end of the transverse threaded rod passes through the wall of the cross frame and is connected to the rotating end of the drive motor. Two fixed rods are symmetrically connected on both sides of the bottom of the cross frame. A first guide roller is rotatably connected to the bottom end of the fixed rod. The leveling component includes two fixing bars symmetrically arranged. The bottom end of the fixing bars is connected to the wall of the main support. The top ends of the two fixing bars are connected to a support plate. A horizontal bar is arranged above the support plate. Two lifting sleeves are symmetrically connected to both ends of the horizontal bar. A guide block is connected to the block wall of the lifting sleeve. Several vertical sliding columns are longitudinally slidably connected to the horizontal bar. The bottom ends of the several vertical sliding columns are connected to a mounting base. A leveling roller is rotatably connected to the lower part of the mounting base. A first elastic element is sleeved on the vertical sliding column. The top end of the first elastic element is connected to the bottom of the horizontal bar, and the bottom end of the first elastic element is connected to the top of the mounting base. The first guide roller is disposed within the first inclined guide groove; The guide block is disposed within the third inclined guide groove; A material unloading component is also provided on one side of the main support.

2. The laser cutting machine for processing biodegradable woven bags according to claim 1, characterized in that: The unloading component includes a support plate rotatably connected to one side of the pallet. A vertical guide rod is slidably connected longitudinally through the lifting sleeve. A horizontal bar is connected to one side of the bottom end of the vertical guide rod. Guide strips corresponding to the horizontal bars are connected to the frame wall of the main support. The horizontal bars are slidably connected to the corresponding guide strips. A second elastic element is sleeved on the horizontal bar. One end of the second elastic element is fixedly connected to the strip wall of the guide strip, and the other end of the second elastic element is connected to the rod wall of the vertical guide rod. Two fixing blocks are symmetrically connected to the bottom of the support plate. A second guide roller is rotatably connected to the lower part of the fixing blocks.

3. The laser cutting machine for processing biodegradable woven bags according to claim 1, characterized in that: The main support is also equipped with an intelligent heat treatment component, which includes a preheating box. The preheating box is fixedly connected to the wall of the main support. An infrared heater is fixedly installed on the inner side of the preheating box. Both sides of the preheating box have transverse through openings for woven fabric to pass through.

4. The laser cutting machine for processing biodegradable woven bags according to claim 1, characterized in that: The first oblique guide groove, the first horizontal guide groove, the second oblique guide groove, and the second horizontal guide groove are all adapted to the first guide roller.

5. The laser cutting machine for processing biodegradable woven bags according to claim 1, characterized in that: The guide block is adapted to the third oblique guide groove.

6. The laser cutting machine for processing biodegradable woven bags according to claim 2, characterized in that: The second guide roller is disposed in the third horizontal guide groove, and the second guide roller is adapted to the third horizontal guide groove.

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