Automatic screw feeding mechanism for wire distribution machine

Abstract

The utility model provides a kind of automatic screwing mechanism for silk distribution machine, comprising: fixed plate, fixed plate upper end left side sliding connection has fixed slide, fixed plate upper end right side fixed mounting has support, fixed slide front side sliding installation has clamping mouth slide. This kind of automatic screwing mechanism for silk distribution machine, by being provided with rack, guide rail, fixed slide, screwing motor, screwdriver, clamping mouth head, advancing motor and gear, the meshing transmission of advancing motor and gear, provide accurate power for rack, cooperate guide rail to realize the stable movement of fixed slide, ensure that clamping mouth head is accurately switched between material taking and locking position;Fixed slide carries screwing motor, power is transmitted to clamping mouth head by screwdriver, in combination with the clamping mouth head of composite adsorption design, realize the firm capture of different specifications screw and reliable locking, both guarantee the stability and positioning accuracy of transfer process, and also through the power output and torque control of screwing motor, greatly improve work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of screw machine technology, and more specifically, to an automatic screw-feeding mechanism for a fabric weaving machine. Background Technology

[0002] The screw-making machine is an automated device integrating multiple structures, enabling full automation of the screw process from screening, conveying, angle positioning, assembly to post-processing and quality inspection. It utilizes a vibratory feeder, a direct-vibration discharge conveyor, an angle positioning structure for angle correction, a screw assembly structure for fastening, and a powder material structure for post-processing. Combined with photoelectric sensors and virtual cameras for monitoring and inspection, it can improve both production efficiency and quality.

[0003] However, the screwing mechanism on existing screw-making machines has the following problems during use:

[0004] The automatic screw-on mechanism has insufficient suction force for micro screws smaller than M0.6, and they are prone to falling off when the vacuum suction force is less than 0.05MPa; the compressed air consumption of the air-blowing feeding method exceeds 0.3m³. 3 The speed is slow, resulting in high energy consumption and costs. When fastening plastic parts, the torque control error reaches ±8%, which can easily lead to stripping and make it difficult to achieve high-precision fastening.

[0005] This invention can achieve full automation of screw gripping, transfer, and fastening, ensuring stable transfer and precise positioning and fastening, improving efficiency, reducing human error, and adapting to various screws and workpieces, thus providing support for automated production of fabrication machines. Utility Model Content

[0006] The present invention aims to solve the technical problems mentioned in the background art and provide an automatic screw-on mechanism for a fabric weaving machine.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an automatic screw-on mechanism for a fabric weaving machine, comprising: a fixed plate, a fixed slide plate slidably connected to the left upper end of the fixed plate, a bracket fixedly installed on the right upper end of the fixed plate, and a clamping slide plate slidably installed on the front side of the fixed slide plate; a rack movably connected to the middle of the upper end of the fixed plate, a toothed groove provided at the right end of the rack, its smooth left side fixedly connected to the fixed slide plate, and a guide rail fixedly installed on the right side of the rack, the guide rail being slidably connected to the fixed slide plate and the clamping slide plate.

[0008] A further preferred embodiment: a baffle is fixedly installed on the upper end of the fixed plate, the baffle is located behind the guide rail and rack, and a proximity switch is fixedly installed at the rear end of the baffle.

[0009] A further preferred embodiment: a screw motor is fixedly installed on the upper end of the fixed slide plate, and a screwdriver bit is fixedly connected to the output end of the screw motor. The screwdriver bit is rotatably connected to the upper end of the clamp slide plate.

[0010] A further preferred embodiment: the other end of the screwdriver bit is fixedly connected to a chuck head, and the chuck head is movably connected to the upper end of the chuck slide plate.

[0011] A further preferred embodiment: a forward motor is fixedly installed on the upper end of the bracket, and a gear is fixedly installed on the output end of the forward motor, and the gear meshes with the tooth groove on the rack to drive the rack to reciprocate back and forth.

[0012] A further preferred embodiment: a clamping block is fixedly installed on the upper end of the clamping slide plate, the middle part of the clamping block is rotatably connected to the screwdriver bit, and the clamping head is located on the front side of the clamping block.

[0013] Beneficial effects:

[0014] 1. By incorporating a rack and pinion mechanism and guide rails, a stable and reliable transmission and guiding foundation is provided for the operation of the mechanism. The rack and pinion mesh with the gears to achieve precise meshing transmission. Combined with the guide rails to limit and guide the fixed slide plate and the clamping slide plate, this ensures that the clamping head moves smoothly and is accurately positioned during material picking, conveying, and clamping, avoiding deviation and shaking. This structural design improves the stability of screw gripping and conveying, ensures the positional accuracy of screws of different specifications in the clamping process, and enhances the continuity and durability of the mechanism's operation, providing reliable mechanical support for the automated clamping process.

[0015] 2. The screw fastening unit is comprised of a fixed sliding plate, a screw motor, a screwdriver bit, and a clamping head. The fixed sliding plate provides a stable mounting base for the screw motor, enabling precise movement of the entire fastening assembly. The screw motor outputs power, which is transmitted to the screwdriver bit to drive the clamping head to rotate and fasten the screw. The clamping head employs a composite adsorption design to ensure a firm grip on screws of different sizes. The four components work together to achieve a continuous action from gripping to fastening the screw. Combined with closed-loop torque control, this ensures fastening accuracy and reliability, and is compatible with various screw types and workpiece materials.

[0016] 3. By setting up a forward motor and gears, the forward motor provides power, and through the precise meshing of the gears and rack, the rotational motion of the motor is converted into the linear reciprocating motion of the rack, thereby driving the entire actuator to move smoothly. This transmission method is responsive and precise in positioning, which can ensure that the clamping head switches precisely between the material picking and locking positions, improves the efficiency and accuracy of screw transfer, and provides a reliable power guarantee for the automated locking process.

[0017] 4. In summary, this type of automatic screw-attaching mechanism for a fabric weaving machine incorporates a rack, guide rail, fixed slide plate, screw-tightening motor, screwdriver bit, clamping head, forward motor, and gears. The meshing transmission between the forward motor and gears provides precise power to the rack, which, in conjunction with the guide rail, enables the smooth movement of the fixed slide plate, ensuring precise switching of the clamping head between the picking and locking positions. The fixed slide plate carries the screw-tightening motor, which transmits power to the clamping head via the screwdriver bit. Combined with the composite adsorption design of the clamping head, it achieves firm gripping and reliable locking of screws of different specifications. The close cooperation of each structure efficiently converts rotary motion into linear motion, ensuring both the stability and positioning accuracy of the transfer process. Furthermore, the power output and torque control of the screw-tightening motor ensure precise screw locking. The entire system achieves a fully automated process from screw gripping and transfer to locking, significantly improving work efficiency, reducing human intervention errors, and adapting to various screw types and workpiece scenarios. It provides core power and execution guarantee for the automated production of fabric weaving machines. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the forward motor structure of this utility model.

[0020] Figure 1-2 In the middle: 1. Fixing plate; 101. Baffle; 102. Proximity switch; 103. Rack; 104. Guide rail; 2. Fixing slide plate; 201. Tightening screw motor; 202. Screwdriver bit; 203. Grip head; 3. Bracket; 301. Forward motor; 302. Gear; 4. Grip slide plate; 401. Grip fixing block. Detailed Implementation

[0021] The following will refer to the appendix in the embodiments of this utility model. Figures 1-2 The technical solutions in the embodiments of this utility model will be clearly and completely described.

[0022] Please see Figure 1-2In this embodiment of the utility model, an automatic screw-on mechanism for a fabric weaving machine includes: a fixed plate 1, a fixed slide plate 2 slidably connected to the upper left side of the fixed plate 1, a bracket 3 fixedly installed on the upper right side of the fixed plate 1, and a clamping slide plate 4 slidably installed on the front side of the fixed slide plate 2; characterized in that a rack 103 is movably connected to the middle of the upper end of the fixed plate 1, a toothed groove is provided at the right end of the rack 103, and its smooth left side is fixedly connected to the fixed slide plate 2; a guide rail 104 is fixedly installed on the right side of the rack 103, and the guide rail 104 is slidably connected to the fixed slide plate 2 and the clamping slide plate 4; a baffle 101 is fixedly installed on the upper end of the fixed plate 1, the baffle 101 is located behind the guide rail 104 and the rack 103, and a proximity sensor is fixedly installed at the rear end of the baffle 101. A screwdriver bit 202 is fixedly mounted on the upper end of the fixed slide plate 2 via switch 102. The output end of the screwdriver bit 201 is fixedly connected to the screwdriver bit 202, which is rotatably connected to the upper end of the clamping slide plate 4. A clamping head 203 is fixedly connected to the other end of the screwdriver bit 202, and is movably connected to the upper end of the clamping slide plate 4. A clamping fixing block 401 is fixedly mounted on the upper end of the clamping slide plate 4, with its middle section rotatably connected to the screwdriver bit 202. The clamping head 203 is located in front of the clamping fixing block 401. Initially, the fixed slide plate 2 is located on the left side of the fixed plate 1. During operation, the rack 103 drives the fixed slide plate 2 to slide along the guide rail 104, moving the clamping head 203 to the material handling position. The clamping head 203 uses a vacuum + electromagnetic composite suction nozzle with a suction force ≥0.1MPa, suitable for screws of M0.3-M8 specifications. It grips screws via magnetic or vacuum suction, while photoelectric detection confirms successful gripping. Some models use compressed air to blow the screw into the bit guide, where the screw is temporarily held in place by air pressure, ensuring stable transfer. After gripping, the rack 103 moves in the reverse direction, causing the fixed slide plate 2 and the clamping slide plate 4 to slide along the guide rail 104, precisely transferring the screw above the workpiece hole. Subsequently, the screw tightening motor 201 starts, driving the screwdriver bit 202 to rotate, and the clamping head 203 simultaneously presses the screw down. This process uses closed-loop torque control, with torque feedback in real time via strain gauges and dynamic adjustment using a PID algorithm to ensure torque error is controlled within ±2%, preventing stripping when fastening plastic parts. After fastening, the screw tightening motor 201 reverses to reset, and the clamping head 203 releases the screw and rises. Simultaneously, the air recovery system starts, recovering residual compressed air, reducing air consumption by 60%. The rack 103 drives the entire structure back to its initial position, and the proximity switch 102 confirms the reset, awaiting the next work cycle.

[0023] In this embodiment of the utility model, a forward motor 301 is fixedly installed on the upper end of the bracket 3, and a gear 302 is fixedly installed on the output end of the forward motor 301. The gear 302 meshes with the tooth groove on the rack 103, driving the rack 103 to reciprocate back and forth. When the forward motor 301 on the bracket 3 is started, the gear 302 at its output end meshes with the tooth groove on the rack 103, driving the rack 103 to move forward, thereby driving the fixed slide plate 2 to slide along the guide rail 104, moving the gripper head 203 to the material picking position. After the gripping is completed, the forward motor 301 rotates in the reverse direction, and the gear 302 drives the rack 103 to move backward, driving the fixed slide plate 2 and the gripper slide plate 4 to slide along the guide rail 104.

[0024] In this embodiment of the utility model, both the screw-twisting motor 201 and the forward motor 301 are servo motors, which have the characteristics of fast response speed, short acceleration or deceleration time, automatic torque adjustment, adaptability to sudden load changes, and support for complex motion. They can shorten cycle time, achieve rapid positioning and high-speed operation, improve productivity, reduce missing or incorrect screws, reduce rework rate, have high long-term operational stability, and adapt to screws of various specifications.

Claims

1. An automatic screw feeding mechanism for a wire threading machine, comprising: A fixed plate (1) is provided with a fixed slide plate (2) slidably connected to the upper left side of the fixed plate (1), a bracket (3) is fixedly installed on the upper right side of the fixed plate (1), and a clamping slide plate (4) is slidably installed on the front side of the fixed slide plate (2); characterized in that a rack (103) is movably connected to the middle of the upper end of the fixed plate (1), a tooth groove is provided on the right end of the rack (103), and its smooth left side is fixedly connected to the fixed slide plate (2), and a guide rail (104) is fixedly installed on the right side of the rack (103), and the guide rail (104) is slidably connected to the fixed slide plate (2) and the clamping slide plate (4).

2. The automatic screwing mechanism for a wire distribution machine according to claim 1, characterized in that: A baffle (101) is fixedly installed on the upper end of the fixed plate (1). The baffle (101) is located behind the guide rail (104) and the rack (103). A proximity switch (102) is fixedly installed at the rear end of the baffle (101).

3. The automatic screwing mechanism for a wire distribution machine according to claim 1, characterized in that: A screw motor (201) is fixedly installed on the upper end of the fixed slide plate (2), and a screwdriver bit (202) is fixedly connected to the output end of the screw motor (201). The screwdriver bit (202) is rotatably connected to the upper end of the clamp slide plate (4).

4. The automatic screw-on mechanism for a fabric weaving machine according to claim 3, characterized in that: The other end of the screwdriver bit (202) is fixedly connected to a chuck head (203), and the chuck head (203) is movably connected to the upper end of the chuck slide plate (4).

5. The automatic screw-on mechanism for a fabric weaving machine according to claim 1, characterized in that: A forward motor (301) is fixedly installed on the upper end of the bracket (3), and a gear (302) is fixedly installed on the output end of the forward motor (301). The gear (302) meshes with the tooth groove on the rack (103) to drive the rack (103) to reciprocate back and forth.

6. The automatic screwing mechanism for a wire distribution machine according to claim 4, characterized in that: The upper end of the clamping slide plate (4) is fixedly installed with a clamping block (401). The middle part of the clamping block (401) is rotatably connected to the screwdriver bit (202). The clamping head (203) is located in front of the clamping block (401).

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