Foot forklift and its working method

Abstract

This invention discloses a fork-making machine, the key features of which are: a worktable, a sewing head, a folding device, a feeding assembly, and a cutting mechanism. The worktable includes a frame and a platform mounted on the frame. The sewing head is mounted on the platform. The feeding assembly feeds the fork strips to the folding device, where the cutting mechanism cuts the fork strips. After the folding device folds the fork strips into the corresponding shape, the sewing head sews and shapes the fork strips.

Description

Technical Field

[0001] This invention relates to the field of automated processing equipment technology, specifically to a foot-operated machine for sewing knitwear and other garments, and its working method. Background Technology

[0002] Knitted materials are relatively soft and tend to stick to the body, making them less breathable. Therefore, many knitted tops feature side slits, a design that not only improves the wearing experience but also adds a touch of style. Slits enhance breathability, making the garment more comfortable and allowing for greater freedom of movement, while also showcasing the figure and facilitating better outfit coordination. Currently, the sewing of slits typically involves first sewing the slit strips, then placing them on a sewing machine to sew them onto the main body fabric. Chinese patent document CN206189041U discloses an automatic slit sewing machine, comprising: a machine base; a suction device with a suction plate located on the machine base and having multiple suction holes; and a lower mold positioning device with a lower template and a lower mold driving component. The lower template has a lower mold sewing channel and is used for overlapping placement of the slit strips and the garment body pieces. The lower mold driving component is located on the machine base and connected to the lower template for driving the lower template to move. The machine moves to the sewing station; an upper mold positioning device, which has an upper template and an upper mold driving component, has an upper mold sewing channel on the upper template, and the upper mold driving component is located on the machine platform and connected to the upper template. The upper mold driving component is used to press down the overlapping leg strips and garment body pieces on the lower template by driving the upper template to move; and a sewing device, which has the sewing station and is located on the machine platform for sewing the leg strips and garment body pieces together. This equipment places the sewn leg strips on the lower template, and then overlaps the garment body pieces (i.e., the main body fabric) to sew the leg strips onto the main body fabric. Therefore, the production efficiency of leg strips affects the production efficiency of garments. Currently, leg strips are basically sewn manually. The leg strips are folded and placed into the corresponding molds by hand, sewn, and then taken out before placing the next one, which is inefficient. Summary of the Invention

[0003] The purpose of this invention is to provide a simple-structured, automatically feeding and sewing machine and its working method.

[0004] The basic technical solution for achieving the objective of this invention is: a forklift sewing machine, characterized by the following structural features: a worktable, a sewing head, a folding device, a feeding assembly, and a cutting mechanism. The worktable includes a frame and a platform mounted on the frame. The sewing head is mounted on the platform. The feeding assembly feeds the forklift strips to the folding device, where the cutting mechanism cuts the forklift strips. After the folding device folds the forklift strips into the corresponding shape, the sewing head sews and shapes the forklift strips.

[0005] Furthermore, for accurate folding of the fork bars, the folding device includes a folding seat, a shaping plate, a shaping plate drive device, a folding plate, and a folding plate drive device. The folding seat has a feed trough running horizontally. The folding seat also has a sewing hole running vertically through it. The shaping plate is slidably mounted on the folding seat and is driven to move back and forth by the shaping plate drive device. The folding plate is slidably mounted on the folding seat and is driven to move back and forth by the folding plate drive device; the folding plate also has a sewing hole running vertically through it.

[0006] Furthermore, to accurately position the fork bar, the folding device also includes a positioning presser foot and a positioning presser foot drive mechanism. The positioning presser foot drive mechanism drives the positioning presser foot to move back and forth and up and down.

[0007] Furthermore, to facilitate quick folding of the fork bars into the desired shape, the shaping plate has a rearward-facing triangular shaping portion. The folding plate has a forward-opening triangular groove corresponding to the shaping portion of the shaping plate, the triangular groove extending through the top and bottom of the folding plate. Stop levers are located on the left and right sides of the front of the folding plate. The stop levers are located on the left and right sides outside the shaping portion of the shaping plate.

[0008] Furthermore, to achieve automatic feeding, the feeding assembly includes feeding grippers, a feeding mounting base, a first drive device, and a lifting drive device. The first drive device drives the feeding grippers to move left and right to feed the material. The lifting drive device drives the feeding mounting base to move up and down, and the feeding grippers are mounted on the feeding mounting base.

[0009] Furthermore, to accurately cut the fork strips and accommodate different fork strip length requirements, the cutting mechanism includes scissors, a scissor mounting base, a scissor adjustment device, and a second drive device. The cutting mechanism is mounted on the feeding mounting base, the scissors are mounted on the scissor mounting base, and the second drive device drives the scissors to move left and right. The scissor adjustment device is used to adjust whether the scissors are in the cutting or picking-up state.

[0010] Furthermore, to ensure accurate feeding, the cutting mechanism also includes an auxiliary fixing assembly. This assembly secures the fork bars. It comprises an upper pressure plate, a lower seat plate, a pressure plate drive mechanism, and a discharge seat. The pressure plate drive mechanism drives the upper pressure plate to move, working together with the lower seat plate to clamp and fix the fork bars. The lower seat plate is fixedly mounted on the scissor mounting base. The discharge seat is fixedly mounted on the scissor mounting base, located between the lower seat plate and the scissors, and has discharge ports extending through its left and right sides.

[0011] Furthermore, to enhance safety during use, the cutting mechanism also includes a shear detection device. This device, mounted on the shear mounting base, detects whether the shears are in the cutting or picking-up state.

[0012] Furthermore, to prevent the fork links from stretching and deforming due to tension, a feeding device and a feeding sensor are also included. The feeding sensor detects whether the fork links are under tension. The feeding device performs active feeding.

[0013] A method for operating a forklift includes the following steps:

[0014] Step 1: The feeding assembly picks up the fork strip from the cutting mechanism.

[0015] Step 2: Place the foot fork strips onto the folding device.

[0016] Step 3: Secure the foot fork bar to the folding device.

[0017] Step 4: Cut the fork strips.

[0018] Step 5: The fork bar is folded by the folding device.

[0019] Step Six: The sewing machine head sews and shapes the foot fork strip.

[0020] Furthermore, for positioning and folding, in step five, the shaping plate moves backward so that the shaping part is above the foot fork strip. Then, the folding plate moves forward, and the two sides of the foot fork strip are folded forward. The sewing hole of the folding plate is located above the sewing hole of the folding seat. After folding, the shaping plate returns to its forward position.

[0021] The present invention has the following beneficial effects: (1) The foot fork machine of the present invention has a simple structure, realizes automatic feeding and automatic sewing, greatly improves processing efficiency, and the sewn foot fork strips have high consistency.

[0022] (2) The folding device of the fork machine of the present invention has a simple structure. The fork strip is pressed and fixed on the corresponding table part of the sewing machine head by the positioning presser foot. When the shaping part of the shaping plate extends backward into the upper part of the fork strip, the positioning presser foot is located on both sides of the shaping part, ensuring that the shaping plate can block the fork strip from above. The folding plate is provided with a stop bar. While the positioning presser foot presses down to fix the middle part of the fork strip, the two sides of the fork strip are blocked by the stop bar and form an upward curve, so that when the folding plate moves forward, the two sides can be folded forward, and the folding is fast and accurate.

[0023] (3) The scissors of the cutting mechanism of the foot fork machine of the present invention are rotatably mounted on the scissor mounting seat. When cutting, the scissors rotate upward so that the fixed blade located below supports the foot fork bar from below, ensuring smooth cutting and neat cuts. When the feeding jaws pick up the material, the scissors rotate downward so that the fixed blade located below can avoid the feeding jaws. The cutting mechanism is equipped with a scissor detection device, which can determine the state of the scissors, prevent the feeding jaws from causing conflict and damage to the scissors, and improve the reliability of use.

[0024] (4) The fork machine of the present invention is equipped with a feeding device and a feeding sensing device. The feeding device adopts an active feeding method. The feeding sensing device detects whether the fork bar is in a tensioned state. When the fork bar is in a tensioned state, the feeding device starts to actively feed the material, thereby avoiding the stretching and deformation caused by pulling the fork bar, which is beneficial to improving the sewing accuracy and consistency.

[0025] (5) The cutting mechanism of the foot fork machine of the present invention is provided with a second driving device. The second driving device can adjust the left and right positions of the scissors, so as to cut out foot fork strips of corresponding length. It has strong adaptability and wide application range.

[0026] (6) The working method of the foot fork machine of the present invention is simple, realizes automatic feeding, automatic folding and automatic sewing, which greatly improves production efficiency, and the sewn foot fork strips have good consistency, which is conducive to improving the quality of clothing. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of the forklift machine of the present invention.

[0028] Figure 2 for Figure 1 A top-down view.

[0029] Figure 3 From Figure 1 A diagram showing the view from the upper right front.

[0030] Figure 4 From Figure 1 A diagram showing the view from the lower left front.

[0031] Figure 5 From Figure 1 A schematic diagram of the feeding device when viewed from the upper right front.

[0032] Figure 6 From Figure 1 A schematic diagram of the feeding device when viewed from the lower left front.

[0033] Figure 7 This is a schematic diagram of the feeding assembly.

[0034] Figure 8 From Figure 7A diagram showing the view from above.

[0035] Figure 9 From Figure 1 A schematic diagram of the feeding assembly when viewed from the upper right front.

[0036] Figure 10 From Figure 1 A schematic diagram of the feeding assembly when viewed from the lower left rear.

[0037] Figure 11 From Figure 1 A schematic diagram of the folding device when viewed from the upper right front.

[0038] Figure 12 From Figure 1 A schematic diagram of the cutting mechanism when viewed from the upper left front.

[0039] Figure 13 From Figure 1 A schematic diagram of the feeding assembly and cutting mechanism when viewed from the upper left front.

[0040] Figure 14 This is a schematic diagram of the feeding sensing device.

[0041] The labels in the attached diagram are:

[0042] Workbench 1, Frame 11, Table 12

[0043] Sewing machine head 2,

[0044] Folding device 3, folding seat 3-1, feeding trough 3-11, folding seat drive device 3-2, shaping plate 3-3, shaping part 3-31, shaping plate drive device 3-4, positioning presser foot 3-5, positioning presser foot drive device 3-6, horizontal drive cylinder 3-61, lifting drive cylinder 3-62, folding plate 3-7, stop bar part 3-71, sewing hole 3-72, folding plate drive device 3-8.

[0045] Feeding assembly 4, feeding gripper 4-1, gripper mounting base 4-2, feeding mounting base 4-3, first drive device 4-4, lifting drive device 4-5, gripper seat guide device 4-6, feeding mounting base guide device 4-7.

[0046] Cutting mechanism 5, shears 5-1, shear mounting base 5-2, limit post 5-21, shear adjustment device 5-3, auxiliary fixing assembly 5-4, upper pressure plate 5-41, lower seat plate 5-42, pressure plate drive device 5-43, discharge seat 5-44, discharge port 5-441, second drive device 5-5, shear mounting base guide device 5-6, shear detection device 5-7.

[0047] 6. Feeding device; 6-1. Feeding roller; 6-2. Pressure roller; 6-3. Feeding mounting base; 6-4. Feeding drive device; 6-5. Material threading base; 6-51. Material threading hole; 6-6. Material threading base guide device; 6-7. Pressure roller base; 6-8. Pressure roller drive device; 6-9. Pressure roller guide device; 6-10. Joint detection device.

[0048] Feeding sensor 7, sensing rod 7-1, rod shaft 7-2, detection component 7-3, photoelectric switch 7-31, baffle 7-32.

[0049] 8 unloading devices, 10 foot forks. Detailed Implementation

[0050] To make the content of this invention easier to understand, the invention will be further described in detail below with reference to specific embodiments and accompanying drawings. The orientation of the invention is described according to... Figure 1 Proceeding in the indicated direction, that is Figure 1 The up, down, left, and right directions shown are the same as the directions described. Figure 1 The direction one faces is the front, and the direction one turns away from is the back. Figure 1 The side to the left is the rear. It should be understood that the terms "upper," "lower," "inner," and "outer," etc., indicate orientation or positional relationships based on the positional relationships shown in the accompanying drawings, and are only for the convenience of describing the invention or simplifying the description, not indicating a specific orientation that must be present. Furthermore, in the description of the invention, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0051] (Example 1)

[0052] See Figures 1 to 14 The fork-making machine of the present invention includes a worktable 1, a sewing head 2, a folding device 3, a feeding assembly 4, a cutting mechanism 5, a loading device 6, a feeding sensor 7, and an unloading device 8. The worktable 1 includes a frame 11 and a platform 12 mounted on the frame 11. The sewing head 2 is mounted on the platform 12. The feeding assembly 4 feeds the fork strips 10 to the folding device 3, where the cutting mechanism 5 cuts the fork strips 10. The folding device 3 folds the fork strips 10 into the corresponding shape, and then the sewing head 2 sews and shapes the fork strips 10. The unloading device 8 includes an air pipe mounted on the sewing head 2, located behind the needle. During use, it blows air downwards and forwards to expel the sewn fork strips 10 from the folding device 3.

[0053] See Figures 1 to 4 and Figure 11 The folding device 3 includes a folding seat 3-1, a folding seat drive device 3-2, a shaping plate 3-3, a shaping plate drive device 3-4, a positioning presser foot 3-5, a positioning presser foot drive device 3-6, a folding plate 3-7, and a folding plate drive device 3-8.

[0054] A folding seat 3-1 is mounted on the panel of the sewing machine head 2. In this embodiment, the sewing machine head 2 is a bartacking machine head. The folding seat drive device 3-2 is integrated into the sewing machine head 2 and is driven by a cylinder. The folding seat drive device 3-2 drives the folding seat 3-1 to move back and forth, and the drive mechanism integrated into the sewing machine head 2 drives the front part of the folding seat 3-1 to swing horizontally. The folding seat 3-1 has a feed groove 3-11 along the left and right sides. The folding seat 3-1 also has a sewing hole that runs through it from top to bottom, and the sewing hole is connected to the feed groove 3-11. The shaping plate 3-3 is slidably mounted on the folding seat 3-1. The shaping plate drive device 3-4 drives the shaping plate 3-3 to move back and forth. The shaping plate 3-3 is U-shaped with an opening facing backward. The rear right end of the shaping plate 3-3 has a rearward-facing triangular shaping part 3-31. In this embodiment, the shaping plate drive device 3-4 is driven by a cylinder and is mounted on the folding seat 3-1. The distance between the shaping plate 3-3 and the bottom of the feeding trough 3-11 is greater than or equal to the thickness of the foot fork strip 10. The folding plate 3-7 is slidably mounted on the folding seat 3-1 and is driven back and forth by the folding plate driving device 3-8. In this embodiment, the folding plate driving device 3-8 is cylinder-driven and mounted on the folding seat 3-1. The folding plate 3-7 has a triangular groove opening forward, which penetrates the top and bottom of the folding plate 3-7. The folding plate 3-7 has a sewing hole 3-72 penetrating its top and bottom. The sewing hole 3-72 is located behind the triangular groove. Stop bars 3-71 are located on the left and right sides of the front of the folding plate 3-7. The stop bars 3-71 are located on the left and right sides outside the shaping part 3-31 of the shaping plate 3-3. The distance between the folding plate 3-7 and the upper surface of the shaping plate 3-3 is greater than or equal to the thickness of the foot fork strip 10. There are two positioning presser feet 3-5, arranged symmetrically to the left and right. A positioning presser foot drive device 3-6 drives the two positioning presser feet 3-5 to move back and forth and up and down. The positioning presser foot drive device 3-6 includes a horizontal drive cylinder 3-61 and a lifting drive cylinder 3-62. The horizontal drive cylinder 3-61 is fixedly mounted on the sewing machine head 2, and its piston rod is horizontally positioned along the front-to-back direction. The lifting drive cylinder 3-62 is fixedly mounted on the end of the piston rod of the horizontal drive cylinder 3-61, and its piston rod is vertically positioned along the up-down direction. The positioning presser feet 3-5 are fixedly mounted on the end of the piston rod of the lifting drive cylinder 3-62.

[0055] See Figures 1 to 4 , Figures 7 to 10 and Figure 13 The feeding assembly 4 includes a feeding gripper 4-1, a gripper mounting base 4-2, a feeding mounting base 4-3, a first driving device 4-4, a lifting driving device 4-5, a gripper seat guide device 4-6, and a feeding mounting base guide device 4-7.

[0056] The feeding gripper 4-1 is a pneumatic gripper. The first drive device 4-4 drives the feeding gripper 4-1 to move left and right for feeding. The lifting drive device 4-5 drives the feeding mounting base 4-3 to move up and down, and the feeding gripper 4-1 is mounted on the feeding mounting base 4-3. In this embodiment, the lifting drive device 4-5 is cylinder-driven and is fixedly mounted on the frame 11, with the end of its piston rod connected to the feeding mounting base 4-3. The feeding mounting base guide device 4-7 includes two linear guide rails, which are arranged sequentially from left to right on the frame 11. Each linear guide rail is fixedly mounted on the frame 11 by its respective slider. Both linear guide rails are vertically arranged, and the feeding mounting base 4-3 is fixedly mounted on the two linear guide rails. Thus, the lifting drive device 4-5 drives the feeding mounting base 4-3 to move up and down along the two linear guide rails of the feeding mounting base guide device 4-7.

[0057] The gripper seat guide device 4-6 includes a linear guide rail, which is fixedly mounted on the feeding mounting base 4-3 along the left-right direction. The gripper mounting base 4-2 is fixedly mounted on the slider of the linear guide rail. The first drive device 4-4 includes a first drive motor and a synchronous belt drive assembly. The first drive motor is fixedly mounted on the feeding mounting base 4-3, and drives the gripper mounting base 4-2 to move left and right along the linear guide rail of the gripper seat guide device 4-6 via the synchronous belt drive assembly.

[0058] See Figures 1 to 4 , Figure 12 and Figure 13 The cutting mechanism 5 includes scissors 5-1, a scissor mounting base 5-2, a scissor adjusting device 5-3, an auxiliary fixing assembly 5-4, a second driving device 5-5, a scissor mounting base guide device 5-6, and a scissor detection device 5-7. Scissors 5-1 are pneumatic scissors. Scissors 5-1 are rotatably mounted on the scissor mounting base 5-2, with their rotation axis horizontally aligned left and right. The scissor adjusting device 5-3 is located in front of this rotation axis. The scissor adjusting device 5-3 includes a cylinder, which is fixedly mounted on the scissor mounting base 5-2 by its cylinder body. The end of its piston rod extends upwards and presses against the corresponding part of scissors 5-1. The scissor mounting base 5-2 is provided with a scissor limiting post 5-21, which presses against the corresponding part of scissors 5-1 from above. When the scissor adjusting device 5-3 pushes scissors 5-1 upwards, the limiting post 5-21 limits and fixes scissors 5-1 from above.

[0059] The scissor mounting guide device 5-6 includes a linear guide rail, which is fixedly mounted on the feeding mounting base 4-3 along the left-right direction. The scissor mounting base 5-2 is fixedly mounted on the slider of the linear guide rail. The second drive device 5-5 includes a second drive motor and a synchronous belt drive assembly. The second drive motor is fixedly mounted on the feeding mounting base 4-3, and drives the scissor mounting base 5-2 to move left and right along the linear guide rail of the scissor mounting guide device 5-6 via the synchronous belt drive assembly. The scissor detection device 5-7 uses a photoelectric switch and is installed on the scissor mounting base 5-2. It is used to detect the scissors 5-1 and determine whether the scissors 5-1 is in the cutting or picking state. When the scissors 5-1 are detected, they are in the cutting state (that is, when the scissors adjusting device 5-3 pushes the scissors 5-1 upward, so that the fixed blade below supports the foot fork strip 10 from below). Cutting can be performed at this time, and the feeding gripper 4-1 is prohibited from picking up the material. When the scissors 5-1 are not detected, they are in the picking state (that is, the piston rod of the scissors adjusting device 5-3 retracts, the front of the scissors 5-1 falls downward, and the foot fork strip is between the lower fixed blade and the upper moving blade of the scissors). At this time, the feeding gripper 4-1 can pick up the material, extending from between the lower fixed blade and the upper moving blade of the scissors to the right side to pick up the material.

[0060] The auxiliary fixing assembly 5-4 includes an upper pressure plate 5-41, a lower seat plate 5-42, a pressure plate drive device 5-43, and a discharge seat 5-44. The pressure plate drive device 5-43 drives the upper pressure plate 5-41 to move, which, together with the lower seat plate 5-42, clamps and fixes the foot fork strip 10. The lower seat plate 5-42 is fixedly mounted on the scissor mounting base 5-2. The pressure plate drive device 5-43 is driven by a cylinder and is fixedly mounted on the scissor mounting base 5-2. Its piston rod extends downward, and the upper pressure plate 5-41 is fixedly mounted on the end of the piston rod of the pressure plate drive device 5-43, located above the lower seat plate 5-42. The discharge seat 5-44 is fixedly installed on the scissor mounting seat 5-2, located between the lower seat plate 5-42 and the scissors 5-1. The discharge seat 5-44 has a discharge port 5-441 that runs through it from left to right. The discharge seat 5-44 has two retaining rings, which are used to adjust the position of the discharge port 5-441 in the front and back directions to ensure accurate material picking position.

[0061] See Figures 1 to 6 The feeding device 6 is existing technology and adopts the structure of the feeding assembly disclosed in Chinese patent document CN210012984U. The feeding device 6 includes a feeding roller 6-1, a pressure roller 6-2, a feeding mounting base 6-3, a feeding drive device 6-4, a material threading base 6-5, a material threading base guide device 6-6, a pressure roller base 6-7, a pressure roller drive device 6-8, a pressure roller guide device 6-9, and a joint detection device 6-10.

[0062] The feeding mounting base 6-3 is fixedly mounted on the feeding mounting base 4-3. The feeding roller 6-1 is rotatably mounted on the feeding mounting base 6-3, with its rotation axis horizontally arranged in the front-to-back direction. The feeding drive device 6-4 includes a motor, which drives the feeding roller 6-1 to rotate. The pressure roller 6-2 is rotatably mounted on the pressure roller seat 6-7, located to the left of the feeding roller 6-1. The pressure roller guide device 6-9 includes a linear guide rail, which is horizontally fixedly mounted on the feeding mounting base 6-3 in the left-to-right direction. The pressure roller seat 6-7 is fixedly mounted on the slider of the linear guide rail. The pressure roller drive device 6-8 includes a drive cylinder and a compression spring. It is driven by a cylinder, which is fixedly mounted on the pressure roller seat 6-7. Its piston rod is arranged in the left-to-right direction, and the end of the piston rod is fixedly connected to the feeding mounting base 4-3. A compression spring is positioned between the pressure roller seat 6-7 and the feeding mounting seat 4-3. The restoring force of the compression spring drives the pressure roller seat 6-7 to move to the right, causing the pressure roller 6-2 to press the fork bar 10 against the feeding roller 6-1. Thus, when the feeding roller 6-1 rotates, it conveys and feeds the fork bar. When the piston rod of the drive cylinder of the pressure roller drive device 6-8 extends, it drives the pressure roller 6-2 to move away from the feeding roller 6-1, thereby stopping the conveying of the fork bar 10. The material threading seat 6-5 has a through-hole 6-51 extending through it. The thickness of the through-hole 6-51 can be adjusted according to the thickness of the fork bar fabric. The material feeder 6-5 is slidably mounted on the loading mounting base 6-3 via a material feeder guide device 6-6. The material feeder guide device 6-6 includes a linear guide rail, which is fixedly mounted on the loading mounting base 6-3 along the vertical direction. The material feeder 6-5 is fixedly mounted on the slider of the linear guide rail. A compression spring is provided between the material feeder 6-5 and the loading mounting base 6-3. The restoring force of the compression spring pushes the material feeder 6-5 upward. A joint detection device 6-10 is fixedly mounted on the loading mounting base 6-3. The joint detection device 6-10 uses a photoelectric switch and is used to detect whether the material feeder 6-5 is pushed upward by the compression spring. When in use, when the joint of the fork bar reaches the material feed seat 6-5, due to its large thickness, it cannot pass through the material feed seat 6-5. As a result, the joint drives the material feed seat 6-5 to move downward against the force of the compression spring. When the joint detection device 6-10 cannot detect the material feed seat 6-5, the equipment judges it to be a joint and automatically stops, waiting for the fork bar 10 to be re-threaded.

[0063] See Figure 1 , Figure 3 , Figure 4 and Figure 14The feeding sensing device 7 includes a sensing rod 7-1, a rod shaft 7-2, and a detection component 7-3. The detection component 7-3 includes a photoelectric switch 7-31 and a baffle 7-32. The sensing rod 7-1 is rotatably mounted on the frame 11 via the rod shaft 7-2. The baffle 7-32 is fixedly mounted on the rear end of the rod shaft 7-2, and the photoelectric switch 7-31 is fixedly mounted on the frame 11, cooperating with the baffle 7-32. In use, when the fork bar 10 drives the sensing rod 7-1 upward, the baffle 7-32 disengages from the photoelectric switch 7-31. At this time, the system determines that the fork bar is in a tensioned state, and the feeding device 6 starts to actively feed the fork bar 10, thereby ensuring that when the feeding component 4 grabs the fork bar 10 from the cutting mechanism 5, the fork bar 10 is in a natural state and will not be pulled or deformed, ensuring the accuracy of feeding.

[0064] The working method of the forklift machine of the present invention includes the following steps:

[0065] In the initial state, the coiled fork strip 10 is first threaded onto the fork machine. Specifically, the fork strip 10 is first passed through a set of guide rods on the feeding device 6 in an S-shape. After passing through the set of guide rods, the fork strip 10 is kept taut and flat as it enters the feeding seat 6-5. It passes through the feeding hole 6-51 of the feeding seat 6-5 and then passes between the feeding roller 6-1 and the pressure roller 6-2. Next, it passes around the lower left side of the sensing pull rod 7-1 and then upwards in an S-shape through a set of guide rods on the cutting mechanism 5. It then passes between the upper pressure plate 5-41 and the lower seat plate 5-42 and finally exits from the discharge port 5-441 of the discharge seat 5-44.

[0066] Step 1: The feeding component 4 picks up the fork strip 10 from the cutting mechanism 5.

[0067] Specifically, the feeding gripper 4-1 of the feeding assembly 4 moves to the right to the cutting mechanism 5, then clamps the end of the foot fork bar 10 and pulls the foot fork bar 10 to the left, pulling the left end of the foot fork bar 10 from the right side of the sewing machine head 2 to the left set position.

[0068] Step 2: Place the foot fork strip 10 onto the folding device 3.

[0069] Specifically, the feeding assembly 4 and the cutting mechanism 5 work together to place the foot fork strip 10 onto the folding device 3. After the feeding gripper 4-1 pulls the left end of the foot fork strip 10 from the right side of the sewing machine head 2 to the left side of the set position, the pressure plate drive device 5-43 of the cutting mechanism 5 drives the upper pressure plate 5-41 to press and fix the foot fork strip 10 onto the lower seat plate 5-42 first forward and then downward. The lifting drive device 4-5 of the feeding assembly 4 drives the feeding mounting base 4-3 to move downward, so that the feeding assembly 4 and the cutting mechanism 5 descend synchronously, placing the corresponding part of the foot fork strip 10 into the loading groove 3-11 of the folding seat 3-1, and covering the corresponding part of the stop bar 3-71 of the folding plate 3-7. The triangular groove on the folding plate 3-7 is located behind the foot fork strip 10.

[0070] Step 3: Fix the foot fork strip 10 onto the folding device 3.

[0071] Specifically, the positioning presser foot 3-5 is driven by the positioning presser foot drive device 3-6 to move forward and then downward, pressing the corresponding part of the foot fork strip 10 downward from above. After the corresponding part of the foot fork strip 10 passes through the sewing hole on the folding seat 3-1, it is pressed and fixed on the corresponding table part of the sewing machine head 2. The remaining part of the foot fork strip 10 is located in the feed groove 3-11. The positioning presser foot 3-5 is located between the stop bar parts 3-71 of the folding plate 3-7.

[0072] Step 4: Cut the foot fork strip 10.

[0073] Specifically, the shear adjustment device 5-3 of the cutting mechanism 5 pushes the shears 5-1 upward, causing the lower fixed blade to support the foot fork strip 10 from below. Then, the upper foot fork strip moves downward to cut the foot fork strip. After cutting, the shears 5-1 returns to its original position and opens. The feeding gripper 4-1 of the feeding assembly 4 releases the foot fork strip 10. The pressure plate drive device 5-43 of the cutting mechanism 5 drives the upper pressure plate 5-41 to rise upward.

[0074] Step 5: The folding device 3 folds the foot fork strip 10.

[0075] Specifically, the shaping plate 3-3 moves backward, positioning the shaping part 3-31 above the foot fork strip 10. Then, the positioning presser foot drive device 3-6 drives the two positioning presser feet 3-5 to first move upward and then back to their original positions. Next, the folding plate 3-7 moves forward, folding both sides of the foot fork strip 10 forward. The sewing hole 3-72 of the folding plate 3-7 is located above the sewing hole of the folding seat 3-1. After folding, the shaping plate 3-3 moves forward to its original position. The feeding assembly 4 and the cutting mechanism 5 move upward to their original positions.

[0076] Step 6: The sewing machine head 2 sews and shapes the foot fork strips 10.

[0077] The folding seat drive device 3-2 of the sewing machine head 2 drives the folding seat 3-1 to move backward, so that the sewing hole 3-72 of the folding plate 3-7 is located below the needle of the sewing machine head 2. Then, the drive mechanism of the sewing machine head 2 drives the front part of the folding seat 3-1 to swing horizontally, while the needle sews to sew the corresponding parts of the folded foot fork strip 10 together. After sewing, the folding seat drive device 3-2 of the sewing machine head 2 drives the folding seat 3-1 to move forward, and the folding plate 3-7 moves backward to reset.

[0078] Step 7: The unloading device 8 removes the sewn fork strip 10 from the folding device 3.

[0079] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above descriptions are merely specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A foot crutch, characterized by: The device includes a workbench (1), a sewing head (2), a folding device (3), a feeding assembly (4), and a cutting mechanism (5); the workbench (1) includes a frame (11) and a table plate (12) set on the frame (11); the sewing head (2) is set on the table plate (12); the feeding assembly (4) feeds the fork strip (10) to the folding device (3), and the cutting mechanism (5) cuts the fork strip (10); the folding device (3) folds the fork strip (10) into the corresponding shape, and the sewing head (2) sews and shapes the fork strip (10); the folding device (3) includes a folding seat (3-1), a shaping plate (3-3), and a folding plate (3-7); The folding seat (3-1) is provided with a feeding groove (3-11) along the left and right directions; the folding seat (3-1) is also provided with a sewing hole that runs through it from top to bottom; the shaping plate (3-3) is slidably disposed on the folding seat (3-1), and the shaping plate (3-3) is provided with a rearward-facing triangular shaping part (3-31); the folding plate (3-7) is slidably disposed on the folding seat (3-1), and the folding plate (3-7) is provided with a triangular groove that opens forward and corresponds to the shaping part (3-31) of the shaping plate (3-3), and the triangular groove runs through the top and bottom of the folding plate (3-7); the front left and right sides of the folding plate (3-7) are provided with a stop bar part (3-71); the stop bar part (3-71) is located outside the left and right sides of the shaping part (3-31) of the shaping plate (3-3).

2. The machine according to claim 1, characterized in that: The folding device (3) also includes a shaping plate driving device (3-4) and a folding plate driving device (3-8). The shaping plate (3-3) is driven to move back and forth by the shaping plate driving device (3-4); the folding plate (3-7) is driven to move back and forth by the folding plate driving device (3-8), and the folding plate (3-7) is provided with sewing holes (3-72) that pass through it from top to bottom.

3. The machine of claim 2 wherein: The folding device (3) also includes a positioning presser foot (3-5) and a positioning presser foot drive device (3-6); the positioning presser foot drive device (3-6) drives the positioning presser foot (3-5) to move back and forth and up and down.

4. The foot cradle of claim 1, wherein: The feeding assembly (4) includes a feeding gripper (4-1), a feeding mounting base (4-3), a first drive device (4-4), and a lifting drive device (4-5); the first drive device (4-4) drives the feeding gripper (4-1) to move left and right to feed the material; the lifting drive device (4-5) drives the feeding mounting base (4-3) to move up and down, and the feeding gripper (4-1) is mounted on the feeding mounting base (4-3).

5. The forklift machine according to claim 4, characterized in that: The cutting mechanism (5) includes scissors (5-1), scissor mounting base (5-2), scissor adjustment device (5-3), and second drive device (5-5). The cutting mechanism (5) is mounted on the feeding mounting base (4-3), the scissors (5-1) is mounted on the scissor mounting base (5-2), and the second drive device (5-5) drives the scissors (5-1) to move left and right. The scissor adjustment device (5-3) is used to adjust the scissors (5-1) to be in the cutting state or the picking state.

6. The forklift machine according to claim 5, characterized in that: The cutting mechanism (5) also includes an auxiliary fixing component (5-4); the auxiliary fixing component (5-4) is used to fix the fork bar (10); the auxiliary fixing component (5-4) includes an upper pressure plate (5-41), a lower seat plate (5-42), a pressure plate drive device (5-43), and a discharge seat (5-44); the pressure plate drive device (5-43) drives the upper pressure plate (5-41) to move and together with the lower seat plate (5-42) clamps and fixes the fork bar (10); the lower seat plate (5-42) is fixedly mounted on the scissor mounting seat (5-2); the discharge seat (5-44) is fixedly mounted on the scissor mounting seat (5-2), located between the lower seat plate (5-42) and the scissors (5-1), and the discharge seat (5-44) is provided with discharge ports (5-441) that pass through it on both sides.

7. The forklift machine according to claim 5, characterized in that: The cutting mechanism (5) also includes a shear detection device (5-7); the shear detection device (5-7) is set on the shear mounting base (5-2) and is used to detect whether the shears (5-1) are in the cutting state or the material taking state.

8. A method of operating a forklift as described in claims 1-7, comprising the following steps: Step 1: The feeding assembly (4) grabs the fork strip (10) from the cutting mechanism (5); Step 2: Place the foot fork strip (10) onto the folding device (3); Step 3: Fix the foot fork strip (10) onto the folding device (3); Step 4: Cut the fork strip (10); Step 5: The fork bar (10) is folded by the folding device (3); Step 6: The sewing machine head (2) sews and shapes the foot fork strip (10).

9. The working method of the forklift machine according to claim 8, characterized in that: In step five, the shaping plate (3-3) moves backward so that the shaping part (3-31) is above the foot fork strip (10). Then the folding plate (3-7) moves forward, and the two sides of the foot fork strip (10) are folded forward. The sewing hole (3-72) of the folding plate (3-7) is above the sewing hole of the folding seat (3-1). After folding, the shaping plate (3-3) returns to its original position forward.

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