Automatic cutting machine for chopstick sheets

Abstract

The utility model discloses an automatic cutting machine for chopstick sheets. The automatic cutting machine comprises a machine table, a material table, a cutting device, a feeding device, a feeding system, a discharging system and a control module. The feeding bin is fixed above the machine table, the bottom of the feeding bin is provided with a first telescopic execution part and a second telescopic execution part which are used for supporting the bottommost layer of sheet stock and laterally pressing the second layer of sheet stock at the bottom respectively during stretching out, and the control module controls the first telescopic execution part and the second telescopic execution part to be matched to stretch out and draw back to achieve sheet stock falling one by one. The feeding mechanism comprises a width positioning device and a material ejecting device. The width positioning device limits the Y-direction position and the cutting angle of sheet materials through two sets of lead screw motors. The material jacking device comprises a material jacking actuator and a double-layer material jacking assembly, the double-layer material jacking assembly enables an upper-layer top plate and a lower-layer top plate to move relatively in the Y direction through an adjusting gear, and the corresponding layers of sheet materials are independently jacked and pushed to achieve layered accurate positioning. The full-automatic cutting machine achieves automation in the whole process from feeding, cutting to discharging, is high in working efficiency and high in control precision, and ensures consistency of finished products.

Description

Technical Field

[0001] This utility model relates to the technical field of chopsticks processing equipment, and in particular to an automatic chopsticks sheet feeding machine. Background Technology

[0002] With the global spread of Chinese culinary culture, the demand for chopsticks is increasing daily. Simultaneously, continuous advancements in production technology have driven the automation and efficiency of chopstick production equipment, becoming a significant trend in the industry. However, the production of chopsticks in China, especially traditional chopsticks with different ends, still largely relies on manual labor. This is not only labor-intensive and inefficient but also makes it difficult to guarantee consistent chopstick dimensions. The production process for chopsticks with different ends mainly includes steps such as slicing, branching, planing, and polishing to remove sharp edges. The slicing step involves cutting the sheet material into slices that are wider at one end and narrower at the other. Branching is the second step, cutting the slices into basic chopstick shapes. The branching process results in finished chopsticks where the frontal projection of all four sides is trapezoidal.

[0003] Chinese Patent Publication No. CN220741493U discloses a wood fiber chopstick branching device, including a frame, a sawing device for cutting wood fiber boards, an orienting device for moving the wood fiber boards along a predetermined trajectory, and a pushing device for pushing the wood fiber boards. The sawing device is fixedly mounted on a first movable base of a sliding table device, which is rotatably mounted on a support. The support is fixedly mounted on the frame, and a drive device for rotating the sliding table device is installed at one end. This device completes the processing of two inclined surfaces through a sawing device capable of rotating the cutting angle, which is more efficient than traditional manual operation. However, it still has some drawbacks: 1. After the pushing device pushes out the board, it is pressed down by a spring plate to limit the vertical position, but the horizontal position cannot be guaranteed to be accurate due to the difference in board size and vibration during the cutting process, resulting in inconsistent shape and size of the finished product; 2. Only one board can be pushed out at a time, resulting in low work efficiency; 3. The degree of automation is low. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the above-mentioned problems and provide an automatic chopsticks sheet cutting machine that automatically completes the branching process of chopsticks sheet from feeding and cutting to discharging. It has a high degree of automation, high working efficiency, high control precision, and ensures the consistency of finished products.

[0005] The technical solution of this utility model is:

[0006] An automatic chopstick sheet feeding machine, characterized in that it comprises:

[0007] An automatic chopstick sheet cutting machine includes a machine base, a material table, a cutting device, a feeding device, a feeding system, a discharging system, and a control module. The coordinate system is defined with the X-axis as the cutting and feeding direction, the Y-axis as the horizontal direction perpendicular to the X-axis, and the Z-axis as the vertical direction perpendicular to the XY plane.

[0008] The material platform is mounted on the machine platform and is used to support the sheet material to be branched in the XY plane; the cutting device is used to cut the sheet material along the X direction, including a saw blade and a first drive motor to drive the saw blade to rotate, the saw blade being arranged perpendicular to the Y direction; the feeding device is used to drive the material platform and the saw blade to move relative to each other in the X direction to achieve cutting; the feeding system is used to transport the sheet material to the cutting position of the material platform; the discharging system is used to output the cut finished product; the control module is communicatively connected to the cutting device, the feeding device, the feeding system, and the discharging system respectively, and is used to control the operation of the cutting device, the feeding device, the feeding system, and the discharging system according to preset programs and parameters;

[0009] The feeding system is characterized in that it includes:

[0010] A feeding hopper, fixedly installed above the machine platform, is used to accommodate multi-layered stacked sheets. The bottom of the feeding hopper forms an open structure. The bottom of the feeding hopper is equipped with a first telescopic drive device and a second telescopic drive device. The first and second telescopic drive devices are respectively equipped with a first telescopic actuator and a second telescopic actuator. The second telescopic actuator is installed higher than the first telescopic actuator. The first telescopic actuator supports the bottommost sheet when extended, and the second telescopic actuator applies lateral pressure to the second layer of sheets when extended. The control module is electrically connected to the first and second telescopic drive devices, and the control module is equipped with a control unit for controlling the coordinated extension and retraction of the first and second telescopic actuators to achieve the sequential falling of sheets.

[0011] The feeding mechanism includes a width positioning device and a top-feeding device mounted on a material platform, located on both sides of the sheet to be branched in the Y direction. Two sets of width positioning devices are provided, each including a lead screw motor. The two lead screw motors are located on the sides of both ends of the sheet in the X direction, with their lead screw shafts arranged along the Y direction. The ends of the two lead screw shafts define the Y-direction positions of both ends of the sheet in the X direction during cutting, thereby defining the cutting angle. Two sets of top-feeding devices are provided, their X-direction positions corresponding to the two lead screw motors. They are used to push the sheet to be branched along the Y direction until it at least indirectly abuts against the lead screw shafts of the two lead screw motors. Each top-feeding device includes a top-feeding actuator and a double-layer top-feeding assembly for simultaneously pushing two layers of sheet material. The double-layer top-feed assembly includes a top-feed block, an adjusting gear, and an upper top plate and a lower top plate stacked on top of each other. The top-feed block is connected to the output end of the top-feed actuator. The adjusting gear is horizontally and rotatably installed in the top-feed block. One end of the upper and lower top plates faces the side of the sheet to be branched, and the other end is provided with an adjusting rack. The adjusting racks of the upper and lower top plates are respectively engaged with the adjusting gear on both sides in the X direction. The rotation of the adjusting rack causes the upper and lower top plates to move relative to each other in the Y direction, so as to independently push the corresponding layer of sheet material. The control module is electrically connected to the lead screw motor and the top-feed actuator, and the control module is provided with a control unit for controlling the extension and retraction of the two lead screw shafts at a set distance, so as to cut the finished product according to the set trajectory.

[0012] The feeding system features a combination of a feeding hopper and a feeding mechanism. The feeding hopper, through the coordinated extension and retraction of the first and second telescopic actuators, automatically drops the sheet materials piece by piece. The feeding mechanism, using two linked lead screw motors for width positioning, works in conjunction with a double-layer top-feed assembly. This allows for precise positioning of the sheet materials in layers to ensure the cutting angle and continuous cutting of finished products along a set trajectory. It can also simultaneously feed two sheet materials for cutting, significantly improving processing efficiency and product consistency. The control module coordinates the actions of the feeding system, cutting device, feeder, and discharge system, achieving fully digital control and automated production from feeding to cutting and discharging. It automatically completes the branching process of chopstick sheet materials, greatly improving production efficiency and offering high control precision, thus enhancing product quality.

[0013] As an optimization, in the above-mentioned automatic chopstick sheet feeding machine, a height limiting baffle is provided on the feeding platform. The height limiting baffle is located on the side of the feeding position close to the width positioning device. A top feeding channel is formed between the limiting part of the height limiting baffle and the surface of the feeding platform. The height of the top feeding channel only allows two layers of sheets to pass through.

[0014] Furthermore, in the aforementioned automatic chopstick sheet cutting machine, each set of width positioning devices also includes a positioning rod. The positioning rod is slidably arranged on the material platform along the Y direction and is located between the lead screw shaft of the lead screw motor and the sheet to be branched. After the top material actuator pushes, the two ends of the positioning rod abut against the lead screw shaft of the lead screw motor and the side of the sheet to be branched, respectively.

[0015] Furthermore, in the aforementioned automatic chopstick sheet cutting machine, the feeding system also includes a first pressing device and a second pressing device respectively disposed on both sides of the saw blade cutting line. Each of the first and second pressing devices includes at least one pressing actuator fixedly mounted on the material platform and a pressing plate connected to the output end of the pressing actuator. The pressing actuator drives the pressing plate to move downwards along the Z-axis to press the sheet material firmly onto the material platform. The two sets of pressing devices can respectively press the sheet material on both sides of the cutting line during the cutting process, thereby improving the stability of the cutting process.

[0016] As an optimization, in the aforementioned automatic chopstick sheet cutting machine, the first pressing device is located on the side of the cutting line near the lead screw motor. The pressing actuator of the first pressing device is connected to its pressing plate via a connecting arm. The upper end of the connecting arm is fixedly connected to the output end of the pressing actuator, and the lower end is rotatably connected to the pressing plate via a Y-axis rotating pin. The pressing plate is rotatably connected via the rotating pin, which allows for adaptive adjustment of the pressing plate's posture according to the tilt angle of the sheet surface, ensuring a firming effect.

[0017] As an optimization, in the aforementioned automatic chopstick sheet cutting machine, the material platform is further equipped with a length positioning plate and a side-top device, located on both sides of the sheet to be cut in the X direction, respectively. The length positioning plate is set perpendicular to the X direction and located on one side of the sheet in the X direction. The side-top device includes a side-top actuator located on the other side of the sheet in the X direction, which is used to push the sheet to be cut along the X direction until it abuts against the length positioning plate. The length positioning plate, in conjunction with the side-top device, ensures that the position of the sheet in the X direction remains the same each time it is cut, thereby guaranteeing the cutting accuracy and the consistency of the finished product size.

[0018] Furthermore, in the aforementioned automatic chopstick sheet cutting machine, the material platform is configured to move along the X-direction by being driven by a feeding device, and the saw blade is fixedly installed on the movement path of the material platform. The feeding device includes a feeding guide rail and a feeding drive mechanism. The feeding guide rail is fixedly installed on the machine platform along the X-direction, and the material platform is slidably installed on the feeding guide rail and is driven by the feeding drive mechanism to reciprocate along the feeding guide rail.

[0019] As an optimization, in the aforementioned automatic chopstick sheet cutting machine, the feed platform consists of a first side feed platform, a middle feed platform, and a second side feed platform arranged in parallel along the Y direction. The middle feed platform is located below the feed hopper, and the middle feed platform and the first side feed platform are located on opposite sides of the cutting line, forming a feed gap between them for the saw blade to pass through. The feeding device includes at least two feed guide rails parallel to both sides of the machine table. The first and second side feed platforms are slidably mounted on the feed guide rails on both sides. The middle feed platform is fixed to the first and second side feed platforms in the X direction, and can be driven by a retraction actuator to reciprocate between the first and second side feed platforms in the Y direction. During the return process of the feed platform after cutting, the retraction actuator drives the middle feed platform away from the first side feed platform, which can avoid the high-speed rotating saw blade during the return trip, thereby preventing the saw blade from contacting the feed platform or the remaining sheet material, improving operational safety and extending the service life of the equipment.

[0020] Furthermore, in the aforementioned automatic chopstick cutting machine, the discharging system includes a clamping device, a discharging guide rail, and a discharging drive device. The discharging guide rail is fixedly arranged along the X-axis, and a discharging port is opened on the machine platform on the Y-axis side of the discharging guide rail. The clamping device is used to clamp and release the cut finished product. The clamping device is slidably arranged on the discharging guide rail and is driven by the discharging drive device to reciprocate along the discharging guide rail to transport the cut finished product to the discharging port. The control module is electrically connected to the discharging drive device and the clamping device. By setting the combined structure of the clamping device and the discharging guide rail, the cut finished product can be automatically transported to the discharging port, improving production efficiency and automation.

[0021] Furthermore, in the aforementioned automatic chopstick sheet feeding machine, the clamping device includes a base, a clamping assembly, and a lifting module. The base is slidably mounted on the discharge guide rail and connected to the discharge drive device. The clamping assembly includes a clamping head for Y-axis clamping and a clamping actuator for driving the clamping head to clamp. The lifting module is used to drive the clamping assembly to move up and down in the Z-axis. The lifting module includes a lifting plate movably connected above the base and a lifting actuator for driving the lifting plate to move up and down in the Z-axis. The clamping assembly is at least indirectly mounted on the lifting plate. The lifting module allows for vertical adjustment of the height of the clamping head of the clamping assembly to accommodate different sheet heights.

[0022] The beneficial effects of this utility model are:

[0023] 1. The feeding system adopts an innovative structural design. The feeding hopper realizes automatic sheet feeding by sheet through the coordinated movement of the first and second telescopic actuators. The feeding mechanism uses a double-layer top material assembly in conjunction with a width positioning device for conveying and positioning, realizing automatic sheet feeding and synchronous cutting of double-layer sheets, which significantly improves production efficiency.

[0024] 2. The system includes a width positioning device, a length positioning plate, and a pressing device with adaptive adjustment function. These multiple positioning mechanisms work together to ensure that the sheet material is positioned stably and accurately during the cutting process, thereby improving the consistency of the finished product and the processing quality.

[0025] 3. The control module coordinates the operation of the feeding system, cutting device, feeding device and discharging system, realizing full digital control and automated production from feeding and cutting to discharging. It automatically completes the branching process of chopsticks sheet material, which not only significantly reduces the intensity of manual labor and improves production efficiency, but also has high control precision and improves product quality. At the same time, the equipment has a reasonable structural design and high safety and reliability. Attached Figure Description

[0026] Figure 1 The sheet material, finished product, and cutting trajectory processed for the embodiments of this utility model.

[0027] Figure 2 This is a three-dimensional structural view of the front of an embodiment of the present utility model.

[0028] Figure 3 This is a perspective view of the back of an embodiment of the present invention.

[0029] Figure 4 This is a three-dimensional structural view of the front of the embodiment of the present invention after removing the cover and cabinet.

[0030] Figure 5 This is a three-dimensional structural diagram of the back of the present invention after removing the cover and cabinet.

[0031] Figure 6 This is a top view of an embodiment of the present invention after removing the cover and cabinet.

[0032] Figure 7 This is an exploded structural diagram of the feed hopper in an embodiment of this utility model.

[0033] Figure 8 The structure of the material platform in this embodiment of the utility model Figure 1 .

[0034] Figure 9 The structure of the material platform in this embodiment of the utility model Figure 2 .

[0035] Figure 10 for Figure 9 A magnified view of point P in the middle.

[0036] Figure 11 This is an exploded view of the double-layer top material assembly in an embodiment of this utility model.

[0037] Figure 12This is a structural diagram of the discharge system in an embodiment of this utility model.

[0038] Figure 13 This is a structural diagram of the clamping device in an embodiment of the present invention.

[0039] Figure 14 This is a structural diagram of the clamping assembly after removing the mounting bracket in an embodiment of this utility model.

[0040] In the diagram: 10. Machine base; 11. Sheet material; 12. Finished product; 13. Cabinet; 14. Machine cover; 15. Touch screen; 16. Positive and negative pressure gauges; 17. Start switch; 18. Indicator light; 21. Saw blade; 22. First drive motor; 23. Cutting seat; 24. Rotary shaft; 25. Waste inlet; 26. Waste hopper; 27. Dust suction pipe; 28. Cover plate; 31. Feed guide rail; 32. Limit switch; 33. Second drive motor; 34. Second pulley transmission mechanism; 4. 41. Material table; 42. First side material table; 43. Middle material table; 44. Second side material table; 45. Cutting tool gap; 46. Retracting tool actuator; 47. Connecting plate; 51. Guide connection structure; 51. Feeding bin; 511. Adjusting baffle; 52. Feeding base; 53. First telescopic drive device; 531. First telescopic actuator; 54. Second telescopic drive device; 55. Sensor; 61. Positioning rod; 62. Guide component; 63. Screw motor; 64. Top material actuator; 65. Top material actuator Material block; 66. Adjusting gear; 67. Upper top plate; 68. Lower top plate; 69. Adjusting rack; 71. Length positioning plate; 72. Side top actuator; 73. Press; 731. Pressure plate; 74. Height limit baffle; 75. Limiting baffle; 81. First pressing device; 82. Second pressing device; 83. Pressing actuator; 84. Pressing plate; 85. Connecting arm; 86. Pressing guide structure; 87. Pressing bracket; 91. Discharge port; 911. Discharge hopper; 912. Material stop. 92. Cylinder; 93. Discharge guide rail; 94. Base; 95. Clamping assembly; 96. Chuck body; 97. Clamping actuator; 98. Mounting bracket; 99. Linkage mechanism; 90. Stationary clamping plate; 91. Moving clamping plate; 92. Pin shaft; 93. Rotating handle; 944. Anti-slip strip; 95. Lifting module; 96. Lifting plate; 97. Lifting actuator; 98. Telescopic rod; 99. Third drive motor; 90. Third transmission block; 91. Third pulley transmission mechanism. Detailed Implementation

[0041] The present invention will now be further described in conjunction with the accompanying drawings and embodiments:

[0042] In the description of this utility model, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "back", "inner", and "outer" is based on the orientation or positional relationship shown in the accompanying drawings and is only for the convenience of describing this utility model, and is not intended to indicate or imply that the device or component referred to must have a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0043] The automatic chopstick cutting machine provided in this embodiment is suitable for the automatic cutting process of chopstick cutting material 11, especially for automatically cutting material 11 with wide and narrow ends into chopsticks of basic shape. Figure 1 As shown, the two ends of the wide and narrow chopstick sheet 11 are divided into ends E and F, and the four sides are divided into four surfaces A, B, C and D in sequence. End E is the wide end and end F is the narrow end. The frontal projection of surface A and surface C is a rectangle, and the frontal projection of surface B and surface D is a trapezoid. The chopstick sheet automatic cutting machine cuts the sheet 11 according to the trajectory shown in the figure, and the frontal projection of the four sides of the finished product 12 is a trapezoid.

[0044] like Figure 2 As shown, the automatic chopstick cutting machine of this embodiment includes a machine base 10, a material table 4, a cutting device, a feeding device, a feeding system, and a discharging system mounted on the machine base 10. It also includes a control module, which is communicatively connected to the cutting device, the feeding device, the feeding system, and the discharging system, and is used to control the operation of the cutting device, the feeding device, the feeding system, and the discharging system according to preset programs and parameters. To help more clearly describe the structure and movement direction of each component, a coordinate system is first defined, where the X-axis is defined as the cutting and feeding direction, the Y-axis is the horizontal direction perpendicular to the X-axis, and the Z-axis is the vertical direction perpendicular to the XY plane.

[0045] like Figure 4 , Figure 5 and Figure 6 As shown, the material platform 4 is mounted on the machine base 10 and is used to support the sheet material 11 to be branched in the XY plane. The cutting device is used to cut the sheet material 11 on the material platform 4 along the X direction. The cutting device includes a saw blade 21 and a first drive motor 22 that drives the saw blade 21 to rotate. The feeding device is used to drive the material platform 4 and the saw blade 21 to move relative to each other in the X direction to achieve cutting. The straight line in the X direction formed when the saw blade 21 cuts is defined as the cutting line. In this embodiment, the material platform 4 is configured to be driven by the feeding device to move along the X direction, and the saw blade 21 is fixedly mounted on the movement path of the material platform 4. The saw blade 21 is set perpendicular to the Y direction, and its cutting plane coincides with the XZ plane.

[0046] Specifically, the feeding device includes a feeding guide rail 31 and a feeding drive mechanism. The feeding guide rail 31 is fixedly mounted on the table surface of the machine base 10 along the X direction. The material table 4 is slidably mounted on the feeding guide rail 31 and is driven by the feeding drive mechanism to reciprocate along the feeding guide rail 31. The feeding device also includes stroke sensing switches 32 disposed at both ends of the feeding guide rail 31, used to sense the position of the material table 4 and control the action of the feeding drive mechanism. In this embodiment, the feeding drive mechanism includes a second drive motor 33, a second pulley transmission mechanism 34, and a second transmission block. The transmission belt of the second pulley transmission mechanism 34 is arranged parallel to the feeding guide rail 31. The second transmission block is fixed on the transmission belt and fixedly connected to the material table 4. The output shaft of the second drive motor 33 is connected to the second pulley transmission mechanism 34, driving the transmission belt to move, thereby causing the material table 4 to move along the feeding guide rail 31. In this embodiment, the second drive motor 33 is a servo motor, fixedly mounted below the machine base 10, and its motor axis passes through the machine base 10 and is connected to the second pulley transmission mechanism 34. In other embodiments, the feed drive mechanism may also be a cylinder or a hydraulic cylinder, whose piston rod is connected to the material table 4, thereby driving the material table 4 to move.

[0047] The cutting device also includes a cutting seat 23 and a rotating shaft 24 rotatably supported on the cutting seat 23. The cutting seat 23 is fixed to the machine base 10. The rotating shaft 24 is arranged along the Y direction. One end of the shaft is fixedly mounted with a saw blade 21, and the other end is connected to the output shaft of the first drive motor 22 through a pulley or sprocket transmission mechanism. The first drive motor 22 is fixedly mounted below the machine base 10. To collect and remove sawdust, dust, and waste generated during the cutting process in a timely manner and to improve the production environment, a waste outlet 25 and a chip removal assembly are provided. The waste outlet 25 is located in the machine base 10, corresponding to the position of the saw blade 21 and extending a distance downstream of the saw blade 21 along the X direction. An inclined waste hopper 26 is provided below the waste outlet 25. Workers can place a collection basket at the outlet of the waste hopper 26. Waste falls from the waste outlet 25 and slides into the collection basket through the waste hopper 26. The chip removal assembly includes a suction pipe 27 with the suction inlet aligned with the saw blade 21 and a negative pressure dust collection device (not shown in the figure) connected to the suction pipe 27.

[0048] like Figure 8 and Figure 9As shown, the feed platform 4 consists of a first side feed platform 41, a middle feed platform 42, and a second side feed platform 43 arranged in parallel along the Y direction. The middle feed platform 42 is located below the feed bin and is used to support the sheet material 11 to be branched. The first side feed platform 41 and the second side feed platform 43 are respectively located on both sides of the middle feed platform 42 in the Y direction. The upper surfaces of the three feed platforms are coplanar. The middle feed platform 42 and the first side feed platform 41 are respectively located on both sides of the cutting line of the saw blade 21, forming a feed gap 44 between them for the saw blade 21 to pass through. The feeding device has at least two feed guide rails 31 arranged parallel to each other along the X direction on both sides of the machine table 10. The first and second side feed platforms 41 and 43 are slidably mounted on the feed guide rails 31 on both sides by sliders. The middle feed platform 42 is set to be fixed to the first and second side feed platforms 41 and 43 in the X direction, and can be driven by the retraction actuator 45 to reciprocate between the first and second side feed platforms 41 and 43 in the Y direction. In this embodiment, in order to ensure the stability of the material platform 4 during operation, two feed guide rails 31 are provided on one side corresponding to the first side material platform 41, so there are a total of three feed guide rails 31. In this embodiment, the retraction actuator 45 is a cylinder, which is fixedly installed on the second side material platform 43 along the Y direction. A connecting plate 46 is fixedly installed on the table surface of the middle material platform 42. The piston rod of the retraction actuator 45 is connected to the connecting plate 46. The installation positions of the retraction actuator 45 and the connecting plate 46 are not limited to this and can also be interchanged.

[0049] To support the intermediate material platform 42 and guide its movement, a guide connection structure 47 is provided between the intermediate material platform 42 and the first side material platform 41 and the second side material platform 43. The guide connection structure 47 can be a guide rail slider structure, a guide post guide sleeve structure, or a combination of both. During the cutting feed process, the intermediate material platform 42 is close to the first side material platform 41. During the return process of the material platform 42, the retraction actuator 45 drives the intermediate material platform 42 away from the first side material platform 41 to avoid the high-speed rotating saw blade 21 during the return stroke.

[0050] The feeding system is used to convey sheet material 11 to the cutting position of the material table 4, such as... Figure 4 As shown, the feeding system includes a feeding bin 51, a feeding mechanism, and a pressing device.

[0051] like Figure 4 , Figure 6 and Figure 7As shown, the feeding bin 51 is used to accommodate multiple stacked pieces of chopsticks 11 and to drop the pieces of chopsticks 11 one by one. The feeding bin 51 is fixedly installed above the machine platform 10 by a raised feeding base 52, and the Y-axis position of the feeding bin 51 is located above the intermediate material platform 42. The X-axis position of the feeding bin 51 can be set upstream of the saw blade 21, corresponding to the beginning of the cutting stroke of the material platform 4, and is used to unload the pieces of chopsticks 11 onto the material platform 4 before the cutting stroke of the material platform 4 begins or after the return stroke of the material platform 4 ends. In this embodiment, the X-axis position of the feeding bin 51 is set downstream of the saw blade 21, corresponding to the end of the cutting stroke of the material platform 4. After the material platform 4 completes the cutting stroke, the time for the clamping device to clamp the finished product 12 is fully utilized to unload the pieces of chopsticks 11 onto the material platform 4, thereby saving time and improving production efficiency. The Y-axis width of the feeding bin 51 is adapted to the width of the sheet material 11. The feeding bin 51 is equipped with an adjustable baffle 511 that can be adjusted in the X-axis direction to accommodate sheet materials 11 of different lengths. The bottom of the feeding bin 51 forms an open structure, which facilitates the sheet material 11 to fall from the bottom and the worker to feed it from the top.

[0052] To achieve the sequential falling of sheet material 11, a first telescopic drive device 53 and a second telescopic drive device 54 are provided at the bottom of the feeding hopper 51. The first and second telescopic drive devices 53 and 54 are respectively provided with a first telescopic actuator 531 and a second telescopic actuator (not shown in the figure). The installation position of the second telescopic actuator is higher than that of the first telescopic actuator 531. The first telescopic actuator 531 is used to support the bottom sheet material 11 when it is extended, and the second telescopic actuator is used to apply lateral pressure to the bottom second layer sheet material 11 when it is extended. The control module is electrically connected to the first and second telescopic drive devices 53 and 54, and the control module is provided with a control unit for controlling the first and second telescopic actuators 531 and coordinating their telescopic movement to achieve the sequential falling of sheet material 11. In this embodiment, the first and second telescopic drive devices 53 and 54 are both telescopic cylinders, namely a feeding cylinder and a side-pressure cylinder, respectively. There are two feeding cylinders, which are respectively arranged at the two ends of the corresponding sheet material 11. They can be on the X side of the sheet material 11, with its piston rod extending and retracting along the X direction, or on the Y side of the sheet material 11, with its piston rod extending and retracting along the Y direction. The first telescopic actuator 531 can be the piston rod of the feeding cylinder or a baffle fixed to the end of the piston rod of the feeding cylinder. There is at least one side-pressure cylinder, which is fixedly installed on the Y side of the feeding chamber 51. When its piston rod extends along the Y direction, it applies lateral pressure to the sheet material 11. In order to adapt to the thickness of the sheet material 11, the side-pressure cylinder can be adjusted to be installed vertically. In order to press the sheet material 11 more stably, two side-pressure cylinders can also be provided, which respectively press the two ends of the sheet material 11 in the X direction. During operation, sheet materials 11 are stacked in the feeding bin 51. When the first telescopic actuators 531 of the two feeding cylinders extend, they block the bottom of the feeding bin 51, supporting the bottom sheet material 11. When a sheet material 11 needs to be dropped, the control module controls the piston rod of the side pressure cylinder to extend and press against the side of the second layer of sheet materials 11, blocking all the sheet materials 11 above. Then, the control module controls the two feeding cylinders to retract the first telescopic actuators 531, so the bottom sheet material 11 loses support and falls onto the intermediate material platform 42. Then, the control module controls the feeding cylinders to extend the first telescopic actuators 53 again, and the piston rod of the side pressure cylinder retracts, so the sheet materials 11 above fall down and are supported again on the first telescopic actuators 531. This cycle is repeated to achieve the dropping of sheet materials 11 one by one.

[0053] The feeding mechanism is used to push the sheet material 11 that has fallen and been stacked on the intermediate material table 42 to the cutting position, such as Figure 8 and Figure 9 As shown, the feeding mechanism includes a width positioning device and a top feeding device installed on the material platform 4, which are located on both sides of the Y direction of the sheet material 11 to be branched on the material platform 4, respectively.

[0054] The width positioning device comprises two sets, installed on the first side platform 41. Each set includes a positioning rod 61, a guide member 62, and a lead screw motor 63. Two lead screw motors 63 are fixedly installed on the first side platform 41, located on the sides of the sheet material 11 at both ends in the X direction. The lead screw motors 63 are through-shaft type, with their lead screw shafts arranged along the Y direction. The positioning rod 61 is slidably mounted on the guide member 62 along the Y direction, located between the lead screw shaft of the lead screw motor 63 and the sheet material 11 to be branched. The two ends of the positioning rod 61 correspond to the end of the lead screw shaft of the lead screw motor 63 and the side of the sheet material 11 to be branched, respectively. The guide member 62 is fixed to the first side platform 41. The push-material actuator 64 pushes the sheet material 11 to be branched until it abuts against one end of the two positioning rods 61, and further pushes it until the other end of the positioning rods 61 abuts against the end of the lead screw shaft of the lead screw motor 63. Therefore, the ends of the lead screw shafts of the two lead screw motors 63 can respectively limit the Y-direction position of the two ends of the sheet material 11 in the X direction during cutting, thereby limiting the cutting angle and cutting the sheet material 11 with wide and narrow ends into chopsticks with basically formed large and small ends.

[0055] The aforementioned ejector device is provided in two sets, with their X-axis positions corresponding to two lead screw motors 63 respectively. Each set of ejector devices includes an ejector actuator 64 and a double-layer ejector assembly. The double-layer ejector assembly can simultaneously eject two layers of sheet material 11 on the material platform 4 and precisely position the sheet material 11 layer by layer. Figure 11 As shown, the double-layer top material assembly includes a top material block 65, an adjusting gear 66, and an upper top plate 67 and a lower top plate 68 stacked on top of each other. The top material block 65 is connected to the output end of the top material actuator 64. The adjusting gear 66 is horizontally and rotatably installed in the top material block 65. One end of the upper and lower top plates 67 and 68 faces the side of the sheet material 11 to be branched on the material platform 4, and is aligned with the two stacked sheets 11 respectively. The other end of the upper and lower top plates 67 and 68 is provided with an adjusting rack 69. The adjusting racks 69 of the upper and lower top plates 67 and 68 are respectively meshed on both sides of the adjusting gear 66 in the X direction. The top material actuator 64 pushes the top material block 65, along with the upper and lower top plates 67 and 68, to move along the Y direction, pushing the two layers of sheet material 11. When one layer of sheet material 11 is pushed into place while the other layer is not in place due to dimensional deviations, the adjusting rack 69 will rotate, causing the upper and lower top plates 67 and 68 to move relative to each other in the Y direction, so as to independently push the corresponding layer of sheet material 11, thereby ensuring the precise positioning of the two layers of sheet material 11. In this embodiment, both top material actuators 64 are cylinders, which are fixedly installed on the intermediate material platform 42, and the piston rod of the cylinder is connected to the top material block 65.

[0056] The control module is electrically connected to the lead screw motor 63 and the top material actuator 64. The control module is equipped with a control unit for controlling the extension and retraction of the two lead screw shafts at a set distance. The control module controls the lead screw shafts of the two lead screw motors 63 to extend and retract in conjunction with the set cutting trajectory. With the interaction of the positioning rod 61 and the top material device, the finished product 12 can be cut continuously.

[0057] like Figure 8 and Figure 9 As shown, the intermediate material table 42 is also equipped with a length positioning plate 71 and a side-top device, located on both sides of the sheet material 11 to be branched in the X direction, respectively. The length positioning plate 71, in conjunction with the side-top device, ensures that the sheet material 11 maintains the same position in the X direction during each cut, thereby guaranteeing cutting accuracy and consistency of the finished product 12 dimensions. The length positioning plate 71 is set perpendicular to the X direction and is located on one side of the sheet material 11 to be branched in the X direction on the intermediate material table 42. The side-top device includes a side-top actuator 72 located on the other side of the sheet material 11 in the X direction. The side-top actuator 72 is fixed to the intermediate material table 42 near the feed gap 44. The side-top actuator 72 pushes the sheet material 11 at the cutting position along the X direction until it abuts against the length positioning plate 71, thereby achieving accurate positioning in the X direction. In this embodiment, the side-top actuator 72 is a cylinder.

[0058] After the sheet material 11 falls from the feed hopper 51, it is stacked one by one on the intermediate material platform 42. In order to push only two layers of sheet material 11 during the ejection process, a height limiting baffle 74 is provided on the intermediate material platform 42. The height limiting baffle 74 is located on the side of the dropping position near the width positioning device. The limiting part of the height limiting baffle 74 and the surface of the intermediate material platform 42 form an ejection channel. The height of the ejection channel only allows two layers of sheet material 11 to pass through. In this embodiment, there are two height limiting baffles 74, located on both sides of the dropping position along the X direction, and both height limiting baffles 74 are set to be adjustable in height to accommodate sheet material 11 of different thicknesses.

[0059] Furthermore, in this embodiment, the Y-direction distance from the material drop position to the cutting position is relatively wide. Therefore, several rows of double-layer sheets 11 awaiting branching are simultaneously pushed along the material drop path and advance sequentially towards the cutting position. To ensure the stability of these sheets 11 during the material drop process, preventing them from jumping or flipping, a pressure device 73 is provided above the material drop path. This pressure device 73 has a pressure plate 731 driven by a spring that always applies downward pressure. The Y-direction width of the pressure plate 731 covers the material drop path, and the ejected sheets 11 are pressed down by the pressure plate 731, thus restricting their position in the vertical direction. The bottom end of the pressure plate 731 facing the material drop position has a downward inclined guide surface along the advancing direction of the sheets 11, facilitating the entry of the sheets 11.

[0060] Furthermore, after the sheet material 11 falls from the feeding hopper 51 and stacks on the intermediate material platform 42, in order to limit its planar position and prevent slippage, multi-directional limiting baffles 75 are provided around the dropping position. These limiting baffles 75, together with the height limiting baffle 74 and the length positioning plate 71, form a dropping cavity. Among them, one limiting baffle 75 opposite to the length positioning plate 71 in the X direction is set to be adjustable, and its position in the X direction can be manually adjusted to accommodate sheet materials 11 of different lengths. In this embodiment, multiple sensors 55 are arranged around the dropping cavity to sense the status of the sheet material 11 in the dropping cavity, thereby controlling the operation of the feeding cylinder and the side pressure cylinder on the feeding hopper 51.

[0061] like Figure 8 , Figure 9 and Figure 10 As shown, the feeding system also includes a first pressing device 81 and a second pressing device 82 respectively disposed on both sides of the cutting line. The first pressing device 81 is located on the side of the cutting line closer to the lead screw motor 63, and the second pressing device 82 is located on the other side of the cutting line. The first and second pressing devices 81 and 82 each include at least one pressing actuator 83 fixedly installed on the material table 4 and a pressing plate 84 connected to the output end of the pressing actuator 83. The pressing actuator 83 is used to drive the pressing plate 84 to move downward along the Z direction to press the sheet material 11 firmly onto the material table 4, so as to improve the stability of the cutting process. Specifically, the first and second pressing devices also include pressing brackets 87. The pressing brackets 87 of the two pressing devices are fixedly installed on the first side platform 41 and the middle platform 42, respectively. The pressing actuators 83 of the first and second pressing devices 81 and 82 are fixedly installed on the pressing brackets 87 of the first side platform 41 and the middle platform 42, respectively. A pressing guide structure 86 composed of guide rails and sliders is also provided between the pressing brackets 87 and the pressing plates 84. In this embodiment, the pressing actuators 83 are cylinders. Each pressing actuator 83 has 2-3 cylinders installed side by side along the X direction. Each cylinder is connected to a pressing plate 84, further improving the stability of the cutting process. To ensure the pressing effect on the wide and narrow head sheet 11, the pressing actuator 83 of the first pressing device 81 is connected to its pressing plate 84 through the connecting arm 85. The upper end of the connecting arm 85 is fixedly connected to the piston rod end of the pressing actuator 83, and the lower end is rotatably connected to its pressing plate 84 through a rotating pin set in the Y direction. This allows the posture of the pressing plate 84 to be adaptively adjusted according to the tilt angle of the sheet 11 surface. The pressing guide structure 86 is set between the pressing bracket 87 and the connecting wall 85.

[0062] The discharge system is used to output the cut finished product 12, such as Figure 6 and Figure 12As shown, the discharge system includes a clamping device, a discharge guide rail 92, and a discharge drive device. The discharge guide rail 92 is fixedly arranged along the X-direction, and a discharge port 91 is opened on the machine base 10 on the Y-direction side of the discharge guide rail 92. The clamping device is used to clamp and release the cut finished product 12. The clamping device is slidably arranged on the discharge guide rail 92 and is driven by the discharge drive device to reciprocate along the discharge guide rail 92 to transport the cut finished product 12 to the discharge port 91. The control module is electrically connected to the discharge drive device and the clamping device. The control module controls the discharge drive device to drive the clamping device to transport the cut finished product 12 to the discharge port 91 according to preset parameters. An inclined discharge hopper 911 is provided below the discharge port 91. Workers can place a collection basket at the outlet of the discharge hopper 911. The finished product 12 falls from the discharge port 91 and slides into the collection basket through the discharge hopper 911. A baffle cylinder 912 can also be provided at the discharge hopper 911 to block the falling finished product 12 when its piston rod extends. It can be used to temporarily store the finished product 12 in the discharge hopper 911 to meet production needs.

[0063] like Figure 13 and Figure 14As shown, the clamping device includes a base 93, a clamping assembly 94, and a lifting module 95. The base 93 is slidably mounted on the discharge guide rail 92 via a slider and connected to the discharge drive device. The lifting module 95 includes a lifting plate 951 movably connected above the base 93 and a lifting actuator 952 for driving the lifting plate 951 to move up and down in the Z direction. The clamping assembly 94 includes a chuck body 941 for clamping in the Y direction and a clamping actuator 942 for driving the chuck body 941 to clamp. The clamping assembly 94 is at least indirectly mounted on the lifting plate 951. The lifting module 95 is used to drive the clamping assembly 94 to move up and down in the Z direction to adjust the clamping height. In this embodiment, the lifting plate 951 is also provided with a Y-direction telescopic rod 953. The clamping assembly 94 is fixedly installed on the telescopic rod 953. The telescopic rod 953 is slidably connected to the lifting plate 951 through a slider fixed on the lifting plate 951, and the extension length of the telescopic rod 953 is limited by a limiting rod, thereby adjusting the Y-direction position of the clamping assembly 94 so that the clamping head 941 is aligned with the cut finished product 12. The clamping assembly 94 also includes a mounting frame 943 and a linkage mechanism 944. The mounting frame 943 is fixed to the telescopic rod 953, and the clamping actuator 942 is fixedly installed on the mounting frame 943. In this embodiment, the clamping actuator 942 is a cylinder. The chuck body 941 includes a stationary clamping plate 945, a movable clamping plate 946, a pin 947 (not shown in the figure), and a rotating handle 948. The stationary clamping plate 945 is formed by extending from the side plate of the mounting bracket 943. The movable clamping plate 946 is arranged opposite to the stationary clamping plate 945. The pin 947 is fixed to the mounting bracket 943. The middle part of the rotating handle 948 is hinged to the pin 947. One end of the rotating handle 948 is connected to the movable clamping plate 946, and the other end is connected to one end of the linkage mechanism 944. The other end of the linkage mechanism 944 is hinged to the piston rod end of the clamping actuator 942. The clamping actuator 942 drives the rotating handle 948 through the linkage mechanism 944 to move the movable clamping plate 946 closer to the stationary clamping plate 945 to clamp the finished product 12. The movable clamping plate 946 and the rotating handle 948 are hinged at one end, so that when clamping finished products 12 of different thicknesses and inclinations, they can be rotated to make the clamping surface fit the surface of finished product 12, making the clamping more stable; at the same time, anti-slip strips 949 are provided on the opposite surfaces of the movable clamping plate 946 and the stationary clamping plate 945, which helps to stabilize the clamping.

[0064] like Figure 12 As shown, the discharge drive device includes a third drive motor 96, a third pulley transmission mechanism 98, and a third transmission block 97. The transmission belt of the third pulley transmission mechanism 98 is arranged parallel to the discharge guide rail 92. The third transmission block 97 is fixed on the transmission belt and fixedly connected to the base 93 of the clamping device. The output shaft of the third drive motor 96 is connected to the third pulley transmission mechanism 98 to drive the transmission belt to move, thereby driving the clamping device to move along the discharge guide rail 92.

[0065] like Figure 2 and Figure 3As shown, a cabinet 13 is located below the machine base 10. The first drive motor 22, the second drive motor 33, the dust suction pipe 27, the waste hopper 26, and the discharge hopper 911 are all installed in the cabinet 13. A cover plate 28 is also provided at the outlet of the waste hopper 26. The upper edge of the cover plate 28 is hinged to the cabinet 13. Due to gravity blocking the outlet of the waste hopper 26, the waste will push open the cover plate 28 and fall into the collection basket after continuous accumulation. The cabinet 13 also houses the power supply box and the air source treatment device. A machine cover 14 is also mounted on the machine base 10. The feeding system, the material platform 4, the feeding device, the cutting device, and the discharge system are all located in the space inside the machine cover 14. The front of the machine cover 14 is equipped with a touch screen 15, positive and negative pressure gauges 16, and a start switch 17. The touch screen 15 is used to input preset parameters and view the machine's operating status. The positive and negative pressure gauges 16 are used to monitor the compressed air pressure supplied to the pneumatic actuators (such as the retracting actuator 45, feeding cylinder, side pressure cylinder, top material actuator 64, side top actuator 72, pressing actuator 83, clamping actuator 942, and blocking cylinder 912). An indicator light 18 is installed on the top of the machine cover 14 to display the working status, facilitating workshop management.

[0066] The automatic chopstick cutting machine of this utility model is particularly suitable for cutting chopsticks 11 with wide and narrow ends. The specific working process is as follows:

[0067] 1. Preparation stage: Stack all the sheet materials 11 to be branched with their A side facing up into the feeding bin 51. Set the width, cutting trajectory and other parameters of the sheet material 11 on the control module and start the machine. At this time, the material table 4 and the clamping device are in the initial position, and the width positioning device will automatically adjust to the set position.

[0068] 2. Unloading: The feed drive mechanism first drives the material table 4 to move along the feed guide rail 31 to the end of the cutting stroke, that is, below the feeding chamber 51. The feeding cylinder and the side pressure cylinder work together to make the sheet material 11 fall one by one. After the sheet material 11 falls and stacks in the dropping chamber on the middle material table 42, the feed drive mechanism drives the material table 4 back to the starting point of the cutting stroke.

[0069] 3. Conveying and Positioning: The piston rod of the top material actuator 64 extends to push the top material block 65, together with the upper and lower top plates 67 and 68, to move along the Y direction and push the two layers of sheet material 11 until they abut against the positioning rod 61 of the width positioning device. Then, it pushes further to make the positioning rod 61 abut against the end of the lead screw shaft of the lead screw motor 63. If one layer of sheet material 11 is not in place, the adjusting rack 69 will rotate, causing the upper and lower top plates 67 and 68 to move relative to each other in the Y direction, so as to push the corresponding layer of sheet material 11 independently and complete the Y-direction positioning. The side top actuator 72 pushes the sheet material 11 along the X direction until it abuts against the length positioning plate 71 and completes the X-direction positioning.

[0070] 4. Pressing and fixing: The pressing actuators 83 of the first and second pressing devices 81 and 82 simultaneously drive their respective pressing plates 84 to move downward along the Z direction to press the two layers of sheet material 11 onto the material table 4. The two sets of pressing plates 84 press on both sides of the cutting line respectively. The pressing plate 84 of the first pressing device 81 can adaptively adjust its posture through the rotational connection of the connecting arm 85 and the rotating pin, closely fitting the inclined surface of the sheet material 11 to ensure the pressing effect.

[0071] 5. Feed cutting: The feed drive mechanism drives the material table 4 to move along the feed guide rail 31. The saw blade 21 passes through the feed gap 44 between the middle material table 42 and the first side material table 41, and cuts two layers of sheet material 11 simultaneously along the X direction. When the material table 4 moves to the end of the stroke, it cuts out two finished products 12 at the same time. One end of the finished product 12 is aligned with the chuck body 941 of the clamping assembly 94.

[0072] 6. Discharge: (1) Finished product conveying: The clamping actuator 942 drives the moving clamping plate 946 to clamp the finished product 12. Then the clamping plate 84 of the first pressing device 81 retracts. At the same time, the feed drive mechanism drives the material table 4 to return. The retraction actuator 45 drives the intermediate material table 42 away from the first side material table 41 to avoid the saw blade 21. At the same time, the discharge drive device drives the clamping device to move along the discharge guide rail 92 to the top of the discharge port 91. The moving clamping plate 946 is released, and the finished product 12 falls into the discharge hopper 911. Then the discharge drive device drives the clamping device to return to the initial position to prepare for the next discharge. (2) If the cut material is waste, the clamping plate 84 of the first pressing device 81 retracts, the screw shaft of the screw motor 63 extends to push the waste material out and fall into the waste hopper 26. The material table 4 retracts and returns. After the material table 4 returns to the starting point of the stroke, the clamping plate 84 of the second pressing device 82 retracts, and the screw motor 63 is adjusted to the new preset position.

[0073] 7. Repeat steps 3 to 6 to complete the cutting of the remaining part of sheet 11. During this process, when the material table 4 senses that the material drop position needs to be replenished when it reaches the end of the cutting stroke, it controls the feeding cylinder and the side pressure cylinder to work together to feed the material again. The cutting and replenishing of sheet 11 continues in a loop until all processing tasks are completed.

[0074] It is understood that those skilled in the art can make various other corresponding changes and modifications based on the technical concept of this utility model, and all such changes and modifications should fall within the protection scope of the claims of this utility model.

Claims

1. An automatic chopstick sheet cutting machine, comprising a machine base, a material table, a cutting device, a feeding device, a feeding system, a discharging system, and a control module, wherein the coordinate system is defined with the X-axis as the cutting and feeding direction, the Y-axis as the horizontal direction perpendicular to the X-axis, and the Z-axis as the vertical direction perpendicular to the XY plane; The material platform is mounted on the machine platform and is used to support the sheet material to be branched in the XY plane; the cutting device is used to cut the sheet material along the X direction, including a saw blade and a first drive motor to drive the saw blade to rotate, the saw blade being arranged perpendicular to the Y direction; the feeding device is used to drive the material platform and the saw blade to move relative to each other in the X direction to achieve cutting; the feeding system is used to transport the sheet material to the cutting position of the material platform; the discharging system is used to output the cut finished product; the control module is communicatively connected to the cutting device, the feeding device, the feeding system, and the discharging system respectively, and is used to control the operation of the cutting device, the feeding device, the feeding system, and the discharging system according to preset programs and parameters; Its features are, The feeding system includes: A feeding hopper, fixedly installed above the machine platform, is used to accommodate multi-layered stacked sheets. The bottom of the feeding hopper forms an open structure. The bottom of the feeding hopper is equipped with a first telescopic drive device and a second telescopic drive device. The first and second telescopic drive devices are respectively equipped with a first telescopic actuator and a second telescopic actuator. The second telescopic actuator is installed higher than the first telescopic actuator. The first telescopic actuator supports the bottommost sheet when extended, and the second telescopic actuator applies lateral pressure to the second layer of sheets when extended. The control module is electrically connected to the first and second telescopic drive devices, and the control module is equipped with a control unit for controlling the coordinated extension and retraction of the first and second telescopic actuators to achieve the sequential falling of sheets. The feeding mechanism includes a width positioning device and a top-feeding device mounted on a material platform, located on both sides of the sheet to be branched in the Y direction. Two sets of width positioning devices are provided, each including a lead screw motor. The two lead screw motors are located on the sides of both ends of the sheet in the X direction, with their lead screw shafts arranged along the Y direction. The ends of the two lead screw shafts define the Y-direction positions of both ends of the sheet in the X direction during cutting, thereby defining the cutting angle. Two sets of top-feeding devices are provided, their X-direction positions corresponding to the two lead screw motors. They are used to push the sheet to be branched along the Y direction until it at least indirectly abuts against the lead screw shafts of the two lead screw motors. Each top-feeding device includes a top-feeding actuator and a double-layer top-feeding assembly for simultaneously pushing two layers of sheet material. The double-layer top-feed assembly includes a top-feed block, an adjusting gear, and an upper top plate and a lower top plate stacked on top of each other. The top-feed block is connected to the output end of the top-feed actuator. The adjusting gear is horizontally and rotatably installed in the top-feed block. One end of the upper and lower top plates faces the side of the sheet to be branched, and the other end is provided with an adjusting rack. The adjusting racks of the upper and lower top plates are respectively engaged with the adjusting gear on both sides in the X direction. The rotation of the adjusting rack causes the upper and lower top plates to move relative to each other in the Y direction, so as to independently push the corresponding layer of sheet material. The control module is electrically connected to the lead screw motor and the top-feed actuator, and the control module is provided with a control unit for controlling the extension and retraction of the two lead screw shafts at a set distance, so as to cut the finished product according to the set trajectory.

2. The automatic chopstick sheet feeding machine according to claim 1, characterized in that: The material platform is equipped with a height limiting baffle. The height limiting baffle is located on the side of the material dropping position near the width positioning device. The limiting part of the height limiting baffle and the surface of the material platform form a top material channel. The height of the top material channel only allows two layers of sheet material to pass through.

3. The automatic chopstick sheet feeding machine according to claim 2, characterized in that: Each width positioning device also includes a positioning rod, which is slidably mounted on the material platform along the Y direction and located between the lead screw shaft of the lead screw motor and the sheet to be branched. After the top material actuator pushes, the two ends of the positioning rod abut against the lead screw shaft of the lead screw motor and the side of the sheet to be branched, respectively.

4. The automatic chopstick sheet feeding machine according to claim 2, characterized in that: The feeding system also includes a first pressing device and a second pressing device respectively set on both sides of the saw blade cutting line. The first and second pressing devices each include at least one pressing actuator fixedly installed on the material platform and a pressing plate connected to the output end of the pressing actuator. The pressing actuator is used to drive the pressing plate to move downward along the Z direction to press the sheet material on the material platform.

5. The automatic chopstick sheet feeding machine according to claim 4, characterized in that: The first pressing device is located on the side of the cutting line near the lead screw motor. The pressing actuator of the first pressing device is connected to its pressing plate through a connecting arm. The upper end of the connecting arm is fixedly connected to the output end of its pressing actuator, and the lower end is rotatably connected to its pressing plate through a rotating pin arranged in the Y direction.

6. The automatic chopstick sheet feeding machine according to claim 1, 2, 3, 4, or 5, characterized in that: The material platform is also provided with a length positioning plate and a side-top device, which are located on both sides of the sheet to be branched in the X direction, respectively; the length positioning plate is set perpendicular to the X direction and is located on one side of the sheet in the X direction; the side-top device includes a side-top actuator set on the other side of the sheet in the X direction, which is used to push the sheet to be branched along the X direction until it abuts against the length positioning plate.

7. The automatic chopstick sheet feeding machine according to claim 1, characterized in that: The material table is configured to move along the X-axis by being driven by the feeding device. The saw blade is fixedly installed on the movement path of the material table. The feeding device includes a feeding guide rail and a feeding drive mechanism. The feeding guide rail is fixedly installed on the machine platform along the X-axis. The material table is slidably installed on the feeding guide rail and is driven by the feeding drive mechanism to reciprocate along the feeding guide rail.

8. The automatic chopstick sheet feeding machine according to claim 7, characterized in that: The feed platform consists of a first side feed platform, a middle feed platform, and a second side feed platform arranged in parallel along the Y direction. The middle feed platform is located below the feed hopper. The middle feed platform and the first side feed platform are located on both sides of the cutting line, forming a feed gap between them for the saw blade to pass through. The feeding device includes at least two feed guide rails arranged parallel to both sides of the machine table. The first and second side feed platforms are slidably mounted on the feed guide rails on both sides. The middle feed platform is configured to be fixed to the first and second side feed platforms in the X direction, and can be driven by a retracting actuator to reciprocate between the first and second side feed platforms in the Y direction.

9. The automatic chopstick sheet feeding machine according to claim 1, characterized in that: The discharge system includes a clamping device, a discharge guide rail, and a discharge driving device. The discharge guide rail is fixedly arranged along the X direction, and a discharge port is opened on the machine platform on one side of the discharge guide rail in the Y direction. The clamping device is used to clamp and release the cut finished product. The clamping device is slidably arranged on the discharge guide rail and is driven by the discharge driving device to reciprocate along the discharge guide rail to transport the cut finished product to the discharge port. The control module is electrically connected to the discharge driving device and the clamping device.

10. The automatic chopstick sheet feeding machine according to claim 9, characterized in that: The clamping device includes a base, a clamping assembly, and a lifting module. The base is slidably mounted on the discharge guide rail and connected to the discharge drive device. The clamping assembly includes a chuck body for clamping in the Y direction and a clamping actuator for driving the chuck body to clamp. The lifting module is used to drive the clamping assembly to move up and down in the Z direction. The lifting module includes a lifting plate movably connected above the base and a lifting actuator for driving the lifting plate to move up and down in the Z direction. The clamping assembly is at least indirectly mounted on the lifting plate.

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