A yarn clamping mechanism for a yarn storage tube

Abstract

This utility model discloses a wire clamping mechanism for a wire storage drum, comprising: a wire storage drum and a wire clamping mechanism. The wire clamping mechanism includes: several end caps and several wire clamping assemblies. The end caps are provided with several piston chambers, and an inner cavity is formed on the inner side of the end caps. The wire clamping assembly includes a piston element, a wire clamping plate, and several elastic elements. The piston element is provided with piston end one and piston end two. The driving assembly includes a driver and rollers. In this utility model, the wire clamping assemblies are located at both ends of the wire storage drum, reducing vibration caused by imbalance and making the dynamic balance and circular runout of the wire storage drum more stable. Both the wire clamping assemblies and the driving assembly are located outside the wire storage drum, allowing the structure of the wire clamping assemblies and the driving assembly to be directly observed, facilitating problem finding and debugging and maintenance. Furthermore, when the elastic elements of one set of wire clamping assemblies experience metal fatigue, the driving assembly can drive another set of wire clamping assemblies to clamp or loosen the wire, reducing the number of maintenance operations, reducing downtime, and improving production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of wire cutting equipment technology, specifically to a wire clamping mechanism for a wire storage cylinder. Background Technology

[0002] CNC wire electrical discharge machining (EDM) is a branch of electrical discharge machining technology that uses a continuously moving metal wire (such as molybdenum wire, copper wire, galvanized wire, etc.) as a tool electrode to cut conductive materials through pulsed discharge corrosion. Its core feature is that "the wire electrode replaces the forming electrode," enabling the machining of complex two-dimensional contours and tapers.

[0003] On wire cutting machines, wire spools are used for outputting and winding electrode wires. Most wire spools on the market have a built-in piston assembly at one end to drive the wire clamping parts on the surface of the wire spool to output or wind the electrode wire. This layout causes an imbalance in weight at both ends of the wire spool, resulting in large circular runout of the wire spool. The dynamic balance effect is poor when the wire spool rotates, and it is difficult to observe the piston assembly inside the wire spool. If the equipment is damaged, it is inconvenient to debug and repair. Utility Model Content

[0004] The purpose of this invention is to provide a wire clamping mechanism for a wire storage cylinder to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a wire clamping mechanism for a wire storage cylinder, comprising: a wire storage cylinder and a wire clamping mechanism, wherein the wire clamping mechanism includes a driving assembly, several end caps and several wire clamping assemblies;

[0006] The end caps are respectively installed on both sides of the wire storage cylinder. The outer ring of the end cap is evenly arranged with several piston chambers for installing the wire clamping assembly, and an inner cavity is formed on the inner side of the end cap.

[0007] The wire clamping assembly includes a piston, a wire clamping plate, and several elastic members. The piston has a piston end one and a piston end two. The piston end one protrudes to the outer surface of the wire storage cylinder. The wire clamping plate is connected to the piston end one. The piston end two protrudes into the inner cavity. One end of the elastic member abuts against the inner wall of the piston cavity, and the other end of the elastic member abuts against the piston.

[0008] The drive assembly includes a driver and a roller. The driver drives the roller to move, and the roller engages with the piston end.

[0009] Preferably, the piston is also provided with several abutting ends, which are arranged perpendicular to the length direction of one piston end, and the other end of the elastic member abuts against the surface of the abutting end.

[0010] Preferably, a guide rod is provided on the abutting end, the length direction of the guide rod is parallel to the length direction of the piston end, and the elastic element is sleeved outside the guide rod.

[0011] Preferably, a through hole is provided between the piston chamber and the outer surface of the end cap for the piston end to move, and a through hole is provided between the piston chamber and the inner cavity for the piston end to move.

[0012] Preferably, a bearing housing 1 and a bearing housing 2 are respectively provided at both ends of the wire storage cylinder, and a central shaft of the wire storage cylinder is provided between the bearing housing 1 and the bearing housing 2. A motor is provided at the end of the bearing housing 1 away from the wire storage cylinder, and the central shaft of the wire storage cylinder is connected to the output end of the motor.

[0013] Preferably, the drive assembly also includes a slider, one end of which is connected to the output end of the driver, and the other end of which is provided with a through groove, and a roller is rotatably mounted in the through groove.

[0014] Preferably, a guide groove is formed on the outer wall of the bearing housing 2 for the slider to move, and the slider drives the roller to move along the guide groove.

[0015] Preferably, the piston end has rounded corners.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. In this invention, several wire clamping components are evenly and symmetrically arranged at both ends of the wire storage drum, reducing vibration caused by imbalance and making the dynamic balance and circular runout of the wire storage drum more stable.

[0018] 2. In this utility model, both the wire clamping assembly and the drive assembly are located outside the wire storage drum, allowing for a direct view of their structure. This facilitates troubleshooting and maintenance. Furthermore, when the elastic element of one set of wire clamping assemblies experiences metal fatigue, the wire storage drum can be rotated to connect another set of wire clamping assemblies with the drive assembly. The drive assembly then drives the other set of wire clamping assemblies to clamp or loosen the wire, reducing maintenance frequency, minimizing downtime, and improving production efficiency. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a structural schematic diagram from another perspective of the present invention;

[0021] Figure 3 This is a schematic diagram of the piston and wire clamping plate in this utility model;

[0022] Figure 4 This is a partial sectional view of the end cap of this utility model;

[0023] Figure 5 This is a partial sectional view of the end cap of this utility model;

[0024] Figure 6 This utility model Figure 5 Enlarged view of point B in the middle;

[0025] Figure 7 This is a partial cross-sectional view of the present invention;

[0026] Figure 8 This utility model Figure 7 Enlarged view of point A in the middle;

[0027] Figure 9 This is a schematic diagram of the structure of the wire spool and end cap in this utility model;

[0028] Figure 10 This is a schematic diagram of the structure of bearing housing two in this utility model;

[0029] Figure 11 This is a schematic diagram of the drive component in this utility model;

[0030] In the diagram: 1. Wire drum; 11. Bearing housing 1; 12. Bearing housing 2; 121. Guide groove; 14. Motor; 2. Drive assembly; 21. Driver; 22. Roller; 23. Slider; 24. Through groove; 3. End cap; 31. Piston chamber; 32. Through hole 1; 33. Through hole 2; 34. Wire storage drum central shaft; 35. Inner cavity; 4. Wire clamping assembly; 5. Piston component; 51. Piston end 1; 52. Piston end 2; 53. Abutment end; 54. Guide rod; 6. Wire clamping plate; 7. Elastic component. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Please see Figure 1-11 This utility model provides a technical solution for a wire clamping mechanism of a wire storage cylinder: a wire clamping mechanism of a wire storage cylinder includes: a wire storage cylinder 1 and a wire clamping mechanism, the wire clamping mechanism includes a driving component 2, several end caps 3 and several wire clamping components 4;

[0033] End caps 3 are respectively installed on both sides of the wire drum 1. The outer ring of the end cap 3 is evenly arranged with a number of piston chambers 31 for installing wire clamping components 4. An inner cavity 35 is formed on the inner side of the end cap 3. The wire clamping components 4 are evenly and symmetrically arranged on both sides of the wire drum 1 to reduce vibration caused by imbalance and make the dynamic balance and circular runout of the wire drum 1 more stable.

[0034] The wire clamping assembly 4 includes a piston 5, a wire clamping plate 6, and several elastic members 7. The piston 5 is provided with a piston end 51 and a piston end 52. The piston end 51 protrudes to the outer surface of the wire spool 1. The wire clamping plate 6 is connected to the piston end 51. The piston end 52 protrudes into the inner cavity 35. One end of the elastic member 7 abuts against the inner wall of the piston cavity 31, and the other end of the elastic member 7 abuts against the piston 5. The drive assembly 2 includes a driver 21 and a roller 22. The driver 21 drives the roller 22 to move. The roller 22 cooperates with the piston end 52.

[0035] When clamping or loosening the wire, the output end of the driver 21 extends, causing the roller 22 to push against the piston end 52. The roller 22 pushes the piston end 52 into the piston chamber 31, causing the piston end 51 to rise. This causes the clamping piece 6 to separate from the surface of the wire drum 1, allowing the electrode wire to enter or leave between the clamping piece 6 and the surface of the wire drum 1. Then, the output end of the driver 21 retracts, and the elastic element 7 drives the clamping piece 6 to reset and move to fit tightly against the surface of the wire drum 1, completing the clamping or loosening of the wire. In this utility model, both the clamping assembly 4 and the driving assembly 2 are located outside the wire drum 1, allowing for a direct view of their structure. This facilitates troubleshooting and maintenance. Furthermore, when the elastic element 7 of one set of clamping assemblies 4 experiences metal fatigue, the wire drum 1 can be rotated to connect another set of clamping assemblies 4 to the driving assembly 2. The driving assembly 2 then drives the other set of clamping assemblies 4 to clamp or loosen the wire, reducing maintenance frequency, minimizing downtime, and improving production efficiency.

[0036] In this embodiment, the piston 5 is also provided with a plurality of abutting ends 53. The abutting ends 53 are arranged perpendicular to the length direction of the piston end 51. The other end of the elastic member 7 abuts against the surface of the abutting end 53. The elastic member 7 applies force to the abutting end 53 to make the wire clamping piece 6 reset and clamp the electrode wire.

[0037] In this embodiment, a guide rod 54 is provided on the abutting end 53. The length direction of the guide rod 54 is parallel to the length direction of the piston end 51. The elastic element 7 is sleeved on the guide rod 54. The elastic element 7 is compressed and stretched along the guide rod 54, which can prevent the elastic element 7 from deviating.

[0038] In this embodiment, a through hole 32 is provided between the piston cavity 31 and the outer surface of the end cap 3 for the piston end 51 to move. The piston end 51 protrudes from the through hole 32 to the outside of the end cap 3. A through hole 33 is provided between the piston cavity 31 and the inner cavity 35 for the piston end 52 to move. The piston end 52 protrudes from the through hole 33 to the inner cavity 35.

[0039] In this embodiment, bearing housing 11 and bearing housing 2 12 are respectively provided at both ends of the axial direction of the wire storage cylinder 1. A central shaft 34 of the wire storage cylinder is provided between the bearing housing 11 and the bearing housing 2 12. A motor 14 is provided at the end of the bearing housing 11 away from the wire storage cylinder 1. The central shaft 34 of the wire storage cylinder is connected to the output end of the motor 14. The motor 14 drives the wire storage cylinder 1 to work through the central shaft 34 of the wire storage cylinder.

[0040] In this embodiment, the driving component 2 also includes a slider 23. One end of the slider 23 is connected to the output end of the driver 21, and the other end of the slider 23 is provided with a through groove 24. The roller 22 is rotatably mounted in the through groove 24. A guide groove 121 for the slider 23 to move is formed on the outer wall of the bearing seat 2 12. The slider 23 drives the roller 22 to move along the guide groove 121, making the structure more compact.

[0041] In this embodiment, piston end 2 52 is provided with a rounded corner. The rounded corner surface is used to contact the roller 22. During operation, the contact between the roller 22 and the rounded surface will be more stable.

[0042] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wire clamping mechanism for a wire storage drum, comprising: The wire storage cylinder (1) and the wire clamping mechanism are characterized in that the wire clamping mechanism includes a drive assembly (2), a plurality of end caps (3) and a plurality of wire clamping assemblies (4); The end caps (3) are respectively installed on both sides of the wire storage cylinder (1). The outer ring of the end caps (3) is evenly arranged with a number of piston chambers (31) for installing the wire clamping assembly (4). An inner cavity (35) is formed on the inner side of the end caps (3). The wire clamping assembly (4) includes a piston (5), a wire clamping plate (6), and several elastic members (7). The piston (5) is provided with a piston end one (51) and a piston end two (52). The piston end one (51) protrudes to the outer surface of the wire storage cylinder (1). The wire clamping plate (6) is connected to the piston end one (51). The piston end two (52) protrudes into the inner cavity (35). One end of the elastic member (7) abuts against the inner wall of the piston cavity (31), and the other end of the elastic member (7) abuts against the piston (5). The drive assembly (2) includes a driver (21) and a roller (22). The driver (21) drives the roller (22) to move, and the roller (22) cooperates with the piston end (52).

2. The wire clamping mechanism of the wire storage spool according to claim 1, characterized in that, The piston (5) is also provided with several abutting ends (53), which are arranged perpendicular to the length direction of the piston end (51), and the other end of the elastic member (7) abuts against the surface of the abutting end (53).

3. The wire clamping mechanism of the wire storage spool according to claim 2, characterized in that, A guide rod (54) is provided on the abutting end (53). The length direction of the guide rod (54) is parallel to the length direction of the piston end (51). The elastic element (7) is sleeved on the guide rod (54).

4. The wire clamping mechanism of the wire storage spool according to claim 1, characterized in that, A through hole (32) for piston end one (51) to move is provided between the outer surface of the piston chamber (31) and the end cap (3), and a through hole (33) for piston end two (52) to move is provided between the piston chamber (31) and the inner cavity (35).

5. The wire clamping mechanism of the wire storage spool according to claim 1, characterized in that, The wire storage cylinder (1) is provided with a bearing seat one (11) and a bearing seat two (12) at its two axial ends respectively. A wire storage cylinder central shaft (34) (13) is provided between the bearing seat one (11) and the bearing seat two (12). A motor (14) is provided at the end of the bearing seat one (11) away from the wire storage cylinder (1). The wire storage cylinder central shaft (34) is connected to the output end of the motor (14).

6. The wire clamping mechanism of the wire storage spool according to claim 5, characterized in that, The drive assembly (2) also includes a slider (23), one end of which is connected to the output end of the driver (21), and the other end of the slider (23) is provided with a through groove (24), and a roller (22) is rotatably installed in the through groove (24).

7. The wire clamping mechanism of the wire storage spool according to claim 6, characterized in that, The outer wall of the bearing seat 2 (12) has a guide groove (121) for the slider (23) to move. The slider (23) drives the roller (22) to move along the guide groove (121).

8. The wire clamping mechanism of the wire storage spool according to claim 7, characterized in that, The piston end 2 (52) is provided with a rounded corner.

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