A loom thread hooking device

Abstract

A loom yarn hook device, comprising a shears support frame, a cantilever beam, a yarn hook hanger and a yarn hook, the cantilever beam is inserted into the shears support frame, the yarn hook hanger is fixed on the cantilever beam, the cantilever beam is fixed with a yarn hook fixing rod, the rod body of the yarn hook fixing rod is fixed with the yarn hook on the side away from the shears support frame, the yarn hook hanger is provided with a strip-shaped hole, the yarn hook fixing rod is provided with a blocking cover corresponding to the limiting block slot on the periphery of the strip-shaped hole, and the end of the yarn hook fixing rod on the side of the recess in the blocking cover is screwed with a second locking nut after passing through the strip-shaped hole. The yarn hook device creatively provides a positioning structure between the yarn hook hanger and the yarn hook fixing rod, which is not easy to loosen horizontally and vertically, is firmly positioned, and does not produce burrs on the guide part due to up-down movement positioning, solves the defects that the yarn hook fixing rod of the existing yarn hook device is not firmly positioned and is easy to produce burrs due to movement, and can effectively ensure the guiding effect of the fabric or yarn.

Description

Technical Field

[0001] This invention relates to a yarn hook device for a loom, specifically a guiding device for the sheared waste edge in a loom, belonging to the technical field of yarn hook devices for looms. Background Technology

[0002] Existing loom waste selvage guiding hook devices, as shown in the Chinese Utility Model Patent "Authorization Announcement No.: CN203754931U; Application Publication Date: August 6, 2014; Title: A Loom Waste Selvage Guiding Device", include a vertical plate support, a horizontal cantilever, a vertical hanger, a yarn hook fixing crossbar, and yarn hooks. The yarn hooks are inserted and fixed on the yarn hook fixing crossbar, which is movably installed in the slotted hole of the vertical hanger using a nut. This device has the following defects: 1. There is a problem of unreliable connection between the yarn hook fixing crossbar and the slotted hole of the vertical hanger, especially when the yarn hook fixing crossbar is positioned in the middle of the slotted hole, the problem is more serious; 2. After repeatedly adjusting the position of the hook fixing crossbar, the outer surface of the slotted hole will be damaged. In severe cases, burrs will be generated on the side wall of the guide part of the vertical hanger, which will affect the guiding effect. Summary of the Invention

[0003] The purpose of this invention is to address the aforementioned technical deficiencies of existing yarn hook devices for looms by providing a new yarn hook device for looms. This device innovatively provides a positioning structure between the yarn hook hanger and the yarn hook fixing rod that is not easily loosened in the horizontal and vertical directions, is reliably positioned, and does not produce burrs on the guide part due to vertical movement. This solves the defects of existing yarn hook devices, such as insufficiently reliable positioning of the yarn hook fixing rod and easy generation of burrs due to movement. It can effectively ensure the guiding effect on fabrics or yarns and has outstanding practicality.

[0004] The above-mentioned technical objective of the present invention is achieved through the following technical solution:

[0005] A yarn hook device for a loom includes a scissor support plate, a cantilever beam, a yarn hook hanger, and a yarn hook. The main body of the scissor support plate is arranged vertically. The cantilever beam is inserted into the main body of the scissor support plate. The yarn hook hanger is fixed on the cantilever beam. A yarn hook fixing rod is fixed on the cantilever beam. A yarn hook is fixed on the side of the yarn hook fixing rod away from the scissor support plate. The yarn hook hanger is provided with a strip-shaped hole. The yarn hook fixing rod is provided with a sealing cover corresponding to the limiting block groove around the strip-shaped hole. The sealing cover is composed of an arc-shaped part and positioning plates at the upper and lower ends of the arc-shaped part. Vertical grooves corresponding to the left and right edges of the arc-shaped part are provided on the left and right sides of the strip-shaped hole. A positioning groove corresponding to the positioning plate is provided between the two vertical grooves. The end of the yarn hook fixing rod located on the side of the concave part of the sealing cover passes through the strip-shaped hole and is threadedly engaged with a second locking nut.

[0006] By adopting the above technical solution, a yarn hook device for a loom is provided. This yarn hook device innovatively provides a positioning structure between the yarn hook hanger and the yarn hook fixing rod that is not easy to loosen horizontally or vertically, is firmly positioned, and will not produce burrs on the guide part due to vertical movement. This solves the defects of existing yarn hook devices, such as insufficiently reliable positioning of the yarn hook fixing rod and easy to produce burrs due to movement, and can effectively ensure the guiding effect on the fabric or yarn.

[0007] A further feature of the present invention is that the outer surface of the sealing cover is smooth.

[0008] A further feature of the present invention is that a stop block is fixed to the outer end of the yarn hook fixing rod, and the stop block is located on the outside of the yarn hook.

[0009] A further feature of the present invention is that the side of the stop block near the yarn hook has a smooth curved surface.

[0010] A further feature of the present invention is that the outer surface of the yarn hook hanger is also smooth, and the surfaces of the yarn hook and the yarn hook fixing rod are also smooth.

[0011] By adopting the above technical solution, all relevant surfaces of the components involved in the guiding process are made smooth, which effectively ensures the smooth guiding of yarns or fabrics and effectively guarantees the guiding effect.

[0012] A further feature of the present invention is that the yarn hook is inserted and fixed in the yarn hook insertion hole of the yarn hook fixing rod in a vertical form, and an anti-rotation structure is provided between the yarn hook insertion hole and the yarn hook insertion part to prevent the yarn hook from rotating. After the yarn hook insertion part passes through the yarn hook insertion hole, it is fastened by a third fastening nut.

[0013] A further feature of the present invention is that an anti-rotation structure is also provided between the cantilever beam and the cantilever beam insertion hole on the main body of the scissor support frame to prevent the cantilever beam from rotating, and the insertion end of the cantilever beam is fastened with a first fastening nut after passing through the cantilever beam insertion hole.

[0014] By adopting the above technical solution, an anti-rotation structure is provided between the insertion part of the yarn hook and the insertion hole of the yarn hook on the yarn hook hanger, and an anti-rotation structure is also provided between the insertion end of the cantilever beam and the insertion hole of the cantilever beam on the scissor support plate, which effectively ensures the guiding stability of the entire guiding device and further improves the guiding effect.

[0015] A further feature of the present invention is that the upper end of the yarn hook hanger is provided with a pair of clamps for the cantilever beam, and the two clamps are locked with screws.

[0016] A further feature of the present invention is that the surface of the cantilever beam is provided with an axial protrusion corresponding to the inner wall of the clamp.

[0017] By adopting the above technical solution, axial protrusions corresponding to the clamps are set on the cantilever beam, which effectively ensures the reliability of the fixing of the yarn hook hanger to the cantilever beam and further ensures the stability of the guide.

[0018] A further feature of the present invention is that the yarn hook is Z-shaped and is formed by bending a smooth round rod.

[0019] By adopting the above technical solution, the specific structure and manufacturing process of the yarn hook are defined, which has the advantages of simple manufacturing process, low manufacturing cost and high manufacturing efficiency.

[0020] The main beneficial effects of this invention are:

[0021] 1. The yarn hook device of the present invention creatively provides a positioning structure between the yarn hook hanger and the yarn hook fixing rod that is not easy to loosen horizontally and vertically, is firmly positioned, and will not produce burrs in the guide part due to vertical movement. It solves the defects of the existing yarn hook device that the yarn hook fixing rod is not firmly positioned and is prone to burrs due to movement, and can effectively ensure the guiding effect for fabrics or yarns.

[0022] 2. The yarn hook device of the present invention makes all the relevant surfaces of the components involved in the guiding process smooth, which effectively ensures the smooth guiding of the yarn or fabric and effectively guarantees the guiding effect.

[0023] 3. The yarn hook device of the present invention is equipped with an anti-rotation structure between the yarn hook insertion part and the yarn hook insertion hole on the yarn hook hanger, and an anti-rotation structure is also equipped between the insertion end of the cantilever beam and the cantilever beam insertion hole on the scissor support plate, which effectively ensures the guiding stability of the entire guiding device and further improves the guiding effect.

[0024] 4. The yarn hook device of the present invention has an axial protrusion on the cantilever beam corresponding to the clamp, which effectively ensures the reliability of the yarn hook hanger and the cantilever beam, and further ensures the stability of the guide. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the forward structure of the present invention;

[0027] Figure 2 This is a side view of the structure of the present invention;

[0028] Figure 3 This is a schematic diagram of the sealing cover structure in this invention.

[0029] In the diagram, 1. Scissor support plate; 21. Cantilever beam; 22. First fastening nut; 3. Yarn hook hanger; 31. Clamp; 32. Screw; 33. Strip hole; 34. Vertical slot; 35. Positioning slot; 41. Yarn hook fixing rod; 42. Second locking nut; 43. Stop block; 44. Sealing cover; 441. Arc-shaped part; 442. Positioning plate; 5. Yarn hook; 6. Waste edge. Detailed Implementation

[0030] The technical solution of the present invention will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0031] Example 1:

[0032] like Figures 1 to 3 As shown, a yarn hook device for a loom includes a scissor support frame 1, a cantilever beam 21, a yarn hook hanger 3, and a yarn hook 5. The main body of the scissor support frame 1 is arranged vertically. The cantilever beam 21 is inserted into the main body of the scissor support frame 1. The yarn hook hanger 3 is fixed on the cantilever beam 21. A yarn hook fixing rod 41 is fixed on the cantilever beam 21. A yarn hook 5 is fixed on the side of the yarn hook fixing rod 41 away from the scissor support frame 1. A stop block 43 is fixed to the outer end of the yarn hook fixing rod 41. The stop block 43 is located outside the yarn hook 5, and the side of the stop block 43 near the yarn hook 5 is a smooth curved surface. The yarn hook hanger 3 has a strip-shaped hole 33. The yarn hook fixing rod 41 has a sealing cover 44 corresponding to the limiting block groove around the strip-shaped hole 33. The sealing cover 44 is composed of an arc-shaped part 441 and positioning plates 442 at the upper and lower ends of the arc-shaped part 441. The outer surface of the sealing cover 44 is smooth. Vertical grooves 34 corresponding to the left and right edges of the arc-shaped part 441 are provided on the left and right sides of the strip-shaped hole 33. A positioning groove 35 corresponding to the positioning plate 442 is provided between the two vertical grooves 34. The end of the yarn hook fixing rod 41 located on the concave side of the sealing cover 44 passes through the strip-shaped hole 33 and is threaded into the second locking nut 42. The outer surface of the yarn hook hanger 3 is also smooth, as are the surfaces of the yarn hook 5 and the yarn hook fixing rod 41.

[0033] The upper end of the yarn hook hanger 3 is equipped with a pair of clamps 31 for the cantilever beam 21, and the two clamps 31 are locked together by screws 32. The surface of the cantilever beam 21 is provided with axial protrusions corresponding to the inner wall of the clamps 31.

[0034] The yarn hook 5 is inserted and fixed vertically in the yarn hook insertion hole of the yarn hook fixing rod 41. An anti-rotation structure is provided between the yarn hook insertion hole and the insertion part of the yarn hook 5 to prevent the yarn hook from rotating. After the insertion part of the yarn hook 5 passes through the yarn hook insertion hole, it is fastened with a third fastening nut.

[0035] An anti-rotation structure is also provided between the cantilever beam 21 and the cantilever beam insertion hole on the main body of the scissor support frame 1 to prevent the cantilever beam 21 from rotating. After the insertion end of the cantilever beam 21 passes through the cantilever beam insertion hole, it is fastened with the first fastening nut 22.

[0036] The yarn hook 5 is Z-shaped and is formed by bending a smooth round rod.

[0037] Operating principle:

[0038] After the scissors cut off the waste edge 6 of the fabric, the waste edge 6 travels around the Z-shaped yarn hook 5 to the guide area surrounded by the sealing cover 44, the yarn hook fixing rod 41, and the stop block 43. Finally, the waste edge is wound up by an external winding machine. The yarn hook device of this loom is securely positioned and not easy to loosen, which can effectively maintain a stable guiding effect for a long time.

Claims

1. A yarn hook device for a loom, comprising a scissor support frame (1), a cantilever beam (21), a yarn hook hanger (3), and a yarn hook (5), wherein the main body of the scissor support frame (1) is arranged vertically, the cantilever beam (21) is inserted into the main body of the scissor support frame (1), the yarn hook hanger (3) is fixed on the cantilever beam (21), a yarn hook fixing rod (41) is fixed on the cantilever beam (21), and a yarn hook fixing rod (41) is fixed on the side of the yarn hook fixing rod (41) away from the scissor support frame (1), characterized in that: The yarn hook hanger (3) is provided with a strip hole (33), and the yarn hook fixing rod (41) is provided with a sealing cover (44) corresponding to the limiting block groove around the strip hole (33). The sealing cover (44) is composed of an arc-shaped part (441) and positioning plates (442) at the upper and lower ends of the arc-shaped part (441). The left and right sides of the strip hole (33) are provided with vertical grooves (34) corresponding to the left and right edges of the arc-shaped part (441). A positioning groove (35) corresponding to the positioning plate (442) is provided between the two vertical grooves (34). The end of the yarn hook fixing rod (41) located on the side of the concave part of the sealing cover (44) passes through the strip hole (33) and is threadedly engaged with the second locking nut (42).

2. The loom yarn hook device according to claim 1, characterized in that: The outer surface of the sealing cover (44) is smooth.

3. The loom yarn hook device according to claim 2, characterized in that: A stop block (43) is fixed to the outer end of the yarn hook fixing rod (41), and the stop block (43) is located on the outside of the yarn hook (5).

4. The loom yarn hook device according to claim 3, characterized in that: The side of the stop (43) near the yarn hook (5) is a smooth curved surface.

5. A loom yarn hook device according to claim 4, characterized in that: The outer surface of the yarn hook hanger (3) is also smooth, as are the surfaces of the yarn hook (5) and the yarn hook fixing rod (41).

6. A loom yarn hook device according to claim 1, characterized in that: The yarn hook (5) is inserted and fixed vertically in the yarn hook insertion hole of the yarn hook fixing rod (41). An anti-rotation structure is provided between the yarn hook insertion hole and the yarn hook (5) insertion part to prevent the yarn hook from rotating. The insertion part of the yarn hook (5) is fastened with a third fastening nut after passing through the yarn hook insertion hole.

7. A loom yarn hook device according to claim 1, characterized in that: An anti-rotation structure is also provided between the cantilever beam (21) and the cantilever beam insertion hole on the main body of the scissor support frame (1) to prevent the cantilever beam (21) from rotating. The insertion end of the cantilever beam (21) is fastened with a first fastening nut (22) after passing through the cantilever beam insertion hole.

8. A loom yarn hook device according to claim 7, characterized in that: The upper end of the yarn hook hanger (3) is provided with a pair of clamps (31) for the cantilever beam (21), and the two clamps (31) are locked with screws (32).

9. A loom yarn hook device according to claim 8, characterized in that: The surface of the cantilever beam (21) is provided with axial protrusions corresponding to the inner wall of the clamp (31).

10. A loom yarn hook device according to claim 1, characterized in that: The yarn hook (5) is Z-shaped and is formed by bending a smooth round rod.

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