Blade wire clamping and feeding mechanism

Abstract

The utility model discloses a blade wire clamping and feeding mechanism which comprises a servo motor, a synchronous belt, a power wheel, a first-stage blade wire feeding wheel, a second-stage blade wire feeding wheel and a starting end wire feeding wheel, wherein the power wheel, the first-stage blade wire feeding wheel, the second-stage blade wire feeding wheel and the starting end wire feeding wheel are installed on the same machine frame and are respectively and coaxially provided with synchronous wheels. The synchronous belt is sequentially connected with the synchronous wheels of the power wheel, the primary blade wire feeding wheel, the secondary blade wire feeding wheel and the initial end wire feeding wheel to form a closed linkage path; the power wheel is connected with the servo motor; the first-stage blade wire feeding wheel and the second-stage blade wire feeding wheel are blade wire feeding wheel assemblies of the same structure, each blade wire feeding wheel assembly is provided with a wire groove with the adjustable width, the wire grooves are detachably provided with a plurality of blades and partition plates, the blades and the partition plates are alternately distributed, and wires are clamped in grooves formed between the adjacent blades and make contact with the partition plates. According to the mechanism, through a blade / partition plate combined adjustment and tensioning wheel compensation adjusting system, cooperative control over the width of the wire groove, the clamping force and the transmission precision is achieved, and the transmission stability is improved.

Description

Technical Field

[0001] This utility model relates to the field of wire feeding mechanism technology, and in particular to a blade-clamping wire feeding mechanism. Background Technology

[0002] In existing wire feeding mechanisms, as the wire passes the feeding wheel after the power wheel, the friction between the wire and the feeding wheel increases, resulting in greater resistance to wire feeding and an unsatisfactory wire feeding effect. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a blade-clamping and wire-feeding mechanism.

[0004] This utility model is achieved through the following technical solution: a blade-clamping and feeding mechanism, comprising a servo motor, a synchronous belt, and a power wheel, a primary blade feeding wheel, a secondary blade feeding wheel, and a starting feeding wheel mounted on the same frame; the power wheel, the primary blade feeding wheel, the secondary blade feeding wheel, and the starting feeding wheel are each coaxially mounted with a synchronous wheel, and the synchronous belt sequentially connects the synchronous wheels of the power wheel, the primary blade feeding wheel, the secondary blade feeding wheel, and the starting feeding wheel to form a closed linkage path; the power wheel is connected to the servo motor; the primary blade feeding wheel and the secondary blade feeding wheel are blade feeding wheel assemblies with the same structure, the blade feeding wheel assembly having an adjustable width groove, the groove being detachably mounted with several blades and partitions, the blades and the partitions being alternately distributed, and the wire being clamped in the groove formed between adjacent blades and in contact with the partitions.

[0005] This mechanism uses a synchronous belt to link multiple synchronous pulleys, forming a closed-loop transmission path to ensure the synchronous rotation speed of each feeding wheel and prevent the yarn from slipping. It adopts an adjustable-width blade feeding wheel assembly, and the alternating installation of blades and partitions forms clamping grooves that can adapt to different yarn diameters, realizing the stable feeding of multi-specification yarns. The alternating distribution of blades and partitions ensures that the yarn always maintains three-point contact with the blades and partitions, reducing the contact area and friction, thereby feeding the yarn out without damping.

[0006] The blade feed wheel assembly also includes a feed wheel seat, a pressure plate, and screws. The feed wheel seat is detachably mounted on the shaft of the synchronous pulley, and the screws pass through the pressure plate and are tightened onto the shaft of the synchronous pulley. The wire groove is formed between the feed wheel seat and the pressure plate. This mechanism achieves quick assembly and disassembly of the blades and partitions through the combined structure of the feed wheel seat and the pressure plate. The screw fastening method ensures assembly stability and allows control of the axial clearance of the wire groove by adjusting the position of the pressure plate, adapting to different blade thickness combinations and accommodating the feeding of multiple specifications of wires.

[0007] The wire feed wheel holder is a stepped shaft structure with mounting holes, including a first step and a second step connected to it. The diameter of the first step is larger than the diameter of the second step. The mounting holes pass through the first and second steps, and the outer end of the synchronous pulley shaft passes through the mounting holes. The pressure plate has positioning holes, which are fitted around the outer circumference of the second step. The blade is an annular blade, and the partition is an annular partition. The blade and the partition are both fitted around the outer circumference of the second step. The first step provides an axial positioning reference to prevent axial movement of the blade and the partition. The cooperation between the wire feed wheel holder and the pressure plate achieves precise radial positioning, preventing blade rotational eccentricity.

[0008] The blade has a tapered diameter structure with a gradually decreasing thickness from the middle to the outer end, which creates a progressive clamping force in the contact area of ​​the thread, effectively gripping the thread surface while avoiding damage to the thread caused by sharp edges.

[0009] The partition is provided with partitions of several thicknesses. This mechanism can precisely control the spacing between adjacent blades by configuring partitions of different thicknesses without changing the blades, simply by adjusting the combination of partitions. The partitions are changed according to the size of the wire; thicker partitions are used for larger wires, and thinner partitions are used for smaller wires, so that the wire, blades, and partitions always maintain three-point contact. Since the smaller the contact area, the less friction there is.

[0010] It also includes a bearing housing and a bearing, with the bearing sleeved inside the bearing housing. The shaft of the synchronous pulley is sleeved inside the bearing and can rotate around it; the bearing housing is mounted on the frame. The combined design of the bearing housing and the bearing distributes the radial load of the shaft to the frame, reduces the vibration amplitude when the synchronous pulley rotates, ensures smooth operation during high-speed wire feeding, and reduces direct frictional loss between the shaft and the frame.

[0011] The blade has identical structures on both sides, with the thickness between the two sides gradually decreasing from the center of the blade towards the edge. This symmetrical tapered blade structure ensures uniform pressure distribution on both clamping surfaces, eliminating wire misalignment caused by unilateral bias.

[0012] The outer diameter of the first step is the same as the outer diameter of the pressure plate, forming a continuous support surface, avoiding stress concentration at the edge of the pressure plate, and making the overall structure look neat.

[0013] The outer diameter of the first step is larger than the outer diameter of the blade, forming a physical limiting protection to prevent the blade from falling off, prevent external foreign objects from directly colliding with the working area of ​​the blade, and extend its service life.

[0014] It also includes an adjustable timing belt tensioner, which is movably mounted on the frame. The timing belt between the secondary blade feed wheel and the initial feed wheel is wound around the tensioner. The movable tensioner compensates for length changes caused by thermal expansion and contraction of the linkage path by adjusting the timing belt tension, thus maintaining a constant transmission ratio.

[0015] Compared with existing technologies, the advantages of this utility model are as follows: This mechanism achieves coordinated control of the wire groove width, clamping force, and transmission accuracy through a combination adjustment system of blades / partitions and tension wheel compensation, thereby improving transmission stability; it has low maintenance costs and long service life; it adopts an adjustable-width blade feeding wheel assembly, and through the alternating installation of blades and partitions, it forms clamping grooves that can adapt to different wire diameters, thereby achieving stable feeding of multi-specification wires; the alternating distribution of blades and partitions ensures that the wire always maintains three-point contact with the blades and partitions, reducing the contact area and friction, thus feeding the wire out without damping. Attached Figure Description

[0016] Figure 1 This is a front view of an embodiment of the present utility model;

[0017] Figure 2 for Figure 1 Sectional view along line AA;

[0018] Figure 3 This is a side view of an embodiment of the present utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the blade wire feeding wheel assembly and the synchronous wheel in an embodiment of this utility model.

[0020] Figure 5 for Figure 4 Sectional view along the BB direction;

[0021] Figure 6 for Figure 5 A magnified view of a section at point C.

[0022] The following are the meanings of the labels in the attached diagram: 1. Power wheel; 2. First-stage blade wire feed wheel; 3. Second-stage blade wire feed wheel; 4. Starting wire feed wheel; 5. Synchronous pulley; 6. Servo motor; 7. Synchronous belt; 8. Blade; 9. Partition plate; 10. Screw; 11. Wire feed wheel seat; 12. Pressure plate; 13. Bearing seat; 14. Bearing; 15. Frame; 16. Wire; 17. Tensioner wheel. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0024] Example

[0025] See Figures 1 to 6 This is a blade-clamping and wire-feeding mechanism, comprising a servo motor 6, a synchronous belt 7, and a power wheel 1, a primary blade wire-feeding wheel 2, a secondary blade wire-feeding wheel 3, and a starting wire-feeding wheel 4 mounted on the same frame 15. Each of the power wheel 1, primary blade wire-feeding wheel 2, secondary blade wire-feeding wheel 3, and starting wire-feeding wheel 4 is coaxially mounted with a synchronous wheel 5. The synchronous belt 7 sequentially connects the synchronous wheels 5 of the power wheel 1, primary blade wire-feeding wheel 2, secondary blade wire-feeding wheel 3, and starting wire-feeding wheel 4, forming a closed linkage path. The power wheel 1 is connected to the servo motor 6. The primary blade wire-feeding wheel 2 and the secondary blade wire-feeding wheel 3 are blade wire-feeding wheel assemblies D with the same structure. The blade wire-feeding wheel assembly D has an adjustable-width wire groove, on which several blades 8 and partitions 9 are detachably mounted. The blades 8 and partitions 9 are alternately distributed, and the wire 16 is clamped in the groove formed between adjacent blades 8 and contacts the partitions 9.

[0026] This mechanism uses a synchronous belt 7 to link multiple synchronous pulleys 5 to form a closed-loop transmission path, ensuring the synchronous speed of each wire feeding wheel and preventing the wire 16 from slipping. It adopts an adjustable-width blade wire feeding wheel assembly D, which forms a clamping groove that can adapt to different wire diameters 16 through the alternating installation of blades 8 and partitions 9, realizing the stable feeding of multiple specifications of wire 16. The alternating distribution of blades 8 and partitions 9 ensures that the wire 16 always maintains three-point contact with the blades 8 and partitions 9, reducing the contact area and friction, thereby feeding the wire 16 out without damping.

[0027] The blade feed roller assembly D also includes a feed roller seat 11, a pressure plate 12, and screws 10. The feed roller seat 11 is detachably mounted on the shaft of the synchronous pulley 5, and the screws 10 pass through the pressure plate 12 and are tightened onto the shaft of the synchronous pulley 5. A wire groove is formed between the feed roller seat 11 and the pressure plate 12. This mechanism achieves quick assembly and disassembly of the blades 8 and the partition plate 9 through the combined structure of the feed roller seat 11 and the pressure plate 12. The screw fastening method ensures assembly stability and allows for control of the axial clearance of the wire groove by adjusting the position of the pressure plate 12, adapting to combinations of blades 8 with different thicknesses and accommodating the feeding of multi-specification wires 16.

[0028] The wire feed wheel holder 11 is a stepped shaft structure with mounting holes, including a first step and a second step connected to it. The diameter of the first step is larger than the diameter of the second step. The mounting holes pass through the first and second steps, and the outer end of the synchronous pulley 5 shaft passes through the mounting holes. The pressure plate 12 has positioning holes, which are fitted around the outer circumference of the second step. The blade 8 is an annular structure, and the partition plate 9 is also an annular structure. The blade 8 and the partition plate 9 are fitted around the outer circumference of the second step. The first step provides an axial positioning reference to prevent the blade 8 and the partition plate 9 from moving axially. The cooperation between the wire feed wheel holder 11 and the pressure plate 12 achieves precise radial positioning, preventing the blade 8 from rotating eccentrically.

[0029] The blade 8 has a tapered diameter structure with a gradually decreasing thickness from the middle to the outer end, which creates a progressive clamping force in the contact area of ​​the wire 16. This effectively grips the surface of the wire 16 while avoiding damage to the wire 16 caused by sharp edges.

[0030] The partition 9 has several thicknesses. By configuring partitions 9 of different thicknesses, this mechanism can precisely control the spacing between adjacent blades 8 without replacing the blades 8, simply by adjusting the combination of partitions 9. The partitions 9 are replaced according to the size of the wire 16; thicker partitions 9 are used for larger wires 16, and thinner partitions 9 are used for smaller wires 16, ensuring that the wire 16 always maintains three-point contact with the blades 8 and the partitions 9. Since the smaller the contact area, the less friction there is.

[0031] It also includes a bearing housing 13 and a bearing 14. The bearing 14 is fitted inside the bearing housing 13, and the shaft of the synchronous pulley 5 is fitted inside the bearing 14 and can rotate around it. The bearing housing 13 is mounted on the frame 15. The combined design of the bearing housing 13 and the bearing 14 distributes the radial load of the shaft to the frame 15, reduces the vibration amplitude when the synchronous pulley 5 rotates, ensures smooth operation during high-speed wire feeding, and reduces direct frictional loss between the shaft and the frame 15.

[0032] Both sides of the blade 8 have the same structure, and the thickness between the two sides gradually decreases from the middle of the blade 8 towards the edge. The symmetrical tapered blade 8 structure ensures uniform pressure distribution on both clamping surfaces, eliminating the wire 16 offset caused by unilateral bias.

[0033] The outer diameter of the first step is the same as the outer diameter of the pressure plate 12, forming a continuous support surface, avoiding stress concentration at the edge of the pressure plate 12, and making the overall structure look neat.

[0034] The outer diameter of the first step is larger than the outer diameter of the blade 8, forming a physical limit protection to prevent the blade 8 from falling off, prevent external foreign objects from directly colliding with the working area of ​​the blade 8, and extend its service life.

[0035] It also includes a tensioning pulley 17 with an adjustable synchronous belt 7, which is movably mounted on the frame 15. The synchronous belt 7 between the secondary blade feed wheel 3 and the initial feed wheel 4 is wound around the tensioning pulley 17. The movable tensioning pulley 17 adjusts the tension of the synchronous belt 7 to compensate for the length changes caused by thermal expansion and contraction of the linkage path, thus maintaining a constant transmission ratio.

[0036] In this embodiment, the wire 16 sequentially passes over the starting feed wheel, the power wheel 1, the first-stage blade feed wheel 2, and the second-stage blade feed wheel 3 before being fed out. The entire wire feeding mechanism forms a conveying system. The power source of the power wheel 1 is controlled by the servo motor 6, which can precisely control the speed of the wire 16. When the power wheel 1 rotates, the other wheels also rotate synchronously. As the wire 16 passes through the first-stage blade feed wheel 2 and the second-stage blade feed wheel 3, the friction between the wire 16 and the wheels decreases, reducing the friction during wire feeding and preparing the second-stage blade feed wheel 3 to feed the wire 16 out without damping.

[0037] The above detailed description is a specific description of a feasible embodiment of the present utility model. This embodiment is not intended to limit the patent scope of the present utility model. All equivalent implementations or modifications that do not depart from the present utility model should be included in the patent scope of this case.

Claims

1. A blade-clamping and wire-feeding mechanism, characterized in that: It includes a servo motor, a synchronous belt and a power wheel mounted on the same frame, a first-stage blade wire feed wheel, a second-stage blade wire feed wheel, and a starting wire feed wheel; The power wheel, the first-stage blade feed wheel, the second-stage blade feed wheel, and the starting feed wheel are each coaxially mounted with a synchronous pulley. A synchronous belt sequentially connects the synchronous pulleys of the power wheel, the first-stage blade feed wheel, the second-stage blade feed wheel, and the starting feed wheel to form a closed linkage path. The power wheel is connected to the servo motor. The first-stage blade feed wheel and the second-stage blade feed wheel are blade feed wheel assemblies with the same structure. The blade feed wheel assembly has an adjustable-width wire groove. Several blades and partitions are detachably installed in the wire groove. The blades and partitions are alternately distributed, and the wire is clamped in the groove formed between adjacent blades and in contact with the partition.

2. The blade-clamping and wire-feeding mechanism according to claim 1, characterized in that: The blade wire feeding wheel assembly also includes a wire feeding wheel seat, a pressure plate, and screws; the wire feeding wheel seat is detachably mounted on the shaft of the synchronous wheel, and the screws pass through the pressure plate and are tightened onto the shaft of the synchronous wheel; the wire feeding wheel seat and the pressure plate form the wire groove.

3. The blade-clamping and wire-feeding mechanism according to claim 2, characterized in that: The wire feeding wheel seat is a stepped shaft structure with mounting holes, including a first step and a second step connected thereto. The diameter of the first step is larger than the diameter of the second step. The mounting holes pass through the first and second steps, and the outer end of the synchronous pulley shaft passes through the mounting holes. The pressure plate has positioning holes, which are fitted around the outer periphery of the second step. The blade is an annular blade, and the partition is an annular partition. The blade and the partition are fitted around the outer periphery of the second step.

4. The blade-clamping and wire-feeding mechanism according to claim 3, characterized in that: The blade has a tapered diameter structure with the thickness gradually decreasing from the middle to the outer end.

5. The blade wire clamping and feeding mechanism according to claim 1, characterized in that: The partition is provided with partitions of several different thicknesses.

6. The blade-clamping and wire-feeding mechanism according to claim 1, characterized in that: It also includes a bearing housing and a bearing, wherein the bearing is sleeved in the bearing housing, and the shaft of the synchronous pulley is sleeved in the bearing and can rotate around it; The bearing housing is mounted on the frame.

7. The blade wire clamping and feeding mechanism according to claim 4, characterized in that: The two sides of the blade have the same structure, and the thickness between the two sides gradually decreases from the middle of the blade towards the edge.

8. The blade wire clamping and feeding mechanism according to claim 3, characterized in that: The outer diameter of the first step is the same as the outer diameter of the pressure plate.

9. The blade-clamping and wire-feeding mechanism according to claim 3, characterized in that: The outer diameter of the first step is larger than the outer diameter of the blade.

10. The blade-clamping and wire-feeding mechanism according to claim 1, characterized in that: It also includes an adjustable timing belt tensioner, which is movably mounted on the frame, and the timing belt between the secondary blade feed wheel and the starting feed wheel is wound around the tensioner.

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