Color changing head of knitting machine

Abstract

The invention relates to the technical field of knitting machines, in particular to a color changing head of a knitting machine. The device comprises a cover plate, a first notch is formed in the upper end of the cover plate, the cover plate is rotationally provided with a pressing handle and a positioning plate, the pressing handle is provided with an upper buckling part, and the upper buckling part is rotationally located above the first notch; a gear is installed on the right side of the upper end of the cover plate, and the positioning plate is provided with a positioning part which is rotationally clamped into tooth positions of the gear. The pressing handle is linked with the positioning plate; when the pressing handle is rotated, the upper buckling part is rotated to be separated from the first positioning pin of the pressing rod fixing seat, and the positioning part of the positioning plate is separated from the gear, so that the color changing head and the pressing rod fixing seat are quickly released, the color changing head can be maintained, and the color changing head is very convenient to disassemble, assemble and maintain.

Description

Technical Field

[0001] This invention relates to the field of knitting machine technology, and specifically to a color-changing head for knitting machines. Background Technology

[0002] A color-changing knitting machine is a knitting machine equipped with several color-changing heads to achieve the effect of changing the color of the woven fabric. First, a pressure bar holder is installed on the knitting machine, and the color-changing heads are vertically installed below the pressure bar holder. During production, if a color-changing head malfunctions, it needs to be removed from the pressure bar holder for repair. Because the color-changing heads are tightly installed, disassembly and installation are very cumbersome, requiring a significant amount of time and effort, resulting in high maintenance costs.

[0003] Furthermore, existing color-changing heads used in knitting machines are assembled with multiple color-changing head cutter assemblies. Each color-changing head cutter assembly includes an upper fixed plate, a lower fixed plate, a hook needle, and a cutter. The upper and lower fixed plates are fixedly installed, and the hook needle and cutter are clamped between them. In existing color-changing head cutter assemblies, the cutter is fixed to the upper and lower fixed plates and its position cannot be moved. When processing certain special yarns, the yarn cutting position differs, requiring replacement of the color-changing head cutter assembly. This increases manufacturing costs; without replacing the color-changing head cutter assembly, the required functionality cannot be met.

[0004] Therefore, based on the aforementioned shortcomings of the existing color-changing head, it is necessary to improve the existing color-changing head. Summary of the Invention

[0005] The purpose of this invention is to provide a color-changing head for knitting machines that addresses the shortcomings of existing technologies. This color-changing head, which is easy to disassemble and maintain, solves the problems of existing color-changing heads, such as cumbersome disassembly and assembly and high maintenance costs.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions.

[0007] A color-changing head for a knitting machine includes a cover plate with a first recess formed at the upper end. A pressing handle and a positioning plate are rotatably mounted on the cover plate. The pressing handle has an upper buckle that rotates to be positioned above the first recess. A gear is mounted on the right side of the upper end of the cover plate. The positioning plate has a positioning part that rotates to engage with the gear teeth. The pressing handle is linked to the positioning plate. Furthermore, the pressing handle has a first locking tooth, and the positioning plate has a second locking tooth. The first locking tooth and the second locking tooth engage to ensure that the pressing handle and the positioning plate move together.

[0008] Furthermore, the pressing handle includes an upper rotating arm and a lower rotating arm. The lower rotating arm has a protruding middle part, and a first locking tooth is formed on the right side of the middle protruding part. When the pressing handle is rotated, the upper rotating arm and the lower rotating arm rotate simultaneously.

[0009] Furthermore, there are two cover plates, and a fastener is fixed between the two cover plates. The fastener has through holes for inclined bolts, so that the fastener can be installed at an inclined position, but the color-changing head is kept vertical.

[0010] Furthermore, the front end face of the fixing component is provided with bolt holes, and the bolts pass through the gear, the cover plate and the bolt holes to be fixed together, so that the color-changing head can rotate around the fixing component.

[0011] Furthermore, the fixing member connects to the pressure rod fixing seat. The left end of the pressure rod fixing seat has a first positioning pin, which cooperates with the first recess. The right end of the pressure rod fixing seat has a mounting part with a vertically opened fixing bolt through hole. The lower end of the mounting part has an inclined hole, which communicates with the inclined bolt through hole of the fixing member, making it more convenient to install the color-changing head and the pressure rod fixing seat.

[0012] Furthermore, there is a curved portion between the central protrusion and the pressing portion, the curved portion forming a concave clearance portion, and the lower end of the positioning plate has an outward protrusion, which is located next to the clearance portion, to ensure that the pressing handle and the positioning plate rotate stably.

[0013] Furthermore, a pin is fixed on the cover plate, and a limiting hole is provided on the pressing handle. The pin is located in the limiting hole to limit the rotation angle of the pressing handle.

[0014] The beneficial effects of this invention are as follows: when the handle is rotated and pressed, the upper buckle is rotated and disengaged from the first positioning pin of the pressure rod fixing seat, and the positioning part of the positioning plate is disengaged from the gear, thereby quickly releasing the color-changing head from the pressure rod fixing seat, so that the color-changing head can be repaired. The disassembly, installation and repair of the color-changing head are very convenient. Attached Figure Description Figure 1 This is a schematic diagram of the structure of the present invention.

[0015] Figure 2 This is a schematic diagram of the pressing handle of the present invention.

[0016] Figure 3 This is a schematic diagram of the positioning plate of the present invention.

[0017] Figure 4 This is a structural schematic diagram of the fastener of the present invention.

[0018] Figure 5 This is a schematic diagram of the structure of the pressure rod fixing seat of the present invention.

[0019] Figure 6 This is a schematic diagram of the color-changing head assembly of the present invention.

[0020] Figure 7This is a schematic diagram of the pressing handle action of the color-changing head of the present invention.

[0021] Figure 8 This is a schematic diagram of the rotation of the color-changing head of the present invention.

[0022] Figure 9 This is a schematic diagram of the cutter assembly of the present invention.

[0023] Figure 10 This is a schematic diagram of the cutter of the present invention.

[0024] Figure 11 for Figure 10 A left-side view diagram.

[0025] Figure 12 This is a schematic diagram of the adjusting rod of the present invention.

[0026] Figure 13 for Figure 12 A left-side view diagram.

[0027] Figure 14 This is a schematic diagram of the cutting assembly of the present invention. Figure 1 .

[0028] Figure 15 This is a schematic diagram of the cutting assembly of the present invention. Figure 2 .

[0029] Figure 16 This is a schematic diagram of the cutting assembly of the present invention. Figure 3 .

[0030] Labels and explanations: 1. Cover plate; 2. First recess; 3. Press handle; 4. Upper buckle; 5. Positioning plate; 6. Gear; 7. First locking tooth; 8. Second locking tooth; 9. Positioning part; 10. Spring; 11. First bevel; 12. Second recess; 13. Mounting hole; 14. Bolt; 15. First pin; 16. Second pin; 17. Third pin; 18. Upper rotating arm; 19. Lower rotating arm; 20. First pin hole; 21. Limiting hole; 22. Middle protrusion; 23. Pressing part; 24. Connecting hole; 25. Bending part; 26. Clearance part; 27. Outer protrusion; 28. Second pin hole; 29. ​​Flat bottom edge; 30. Connecting shaft; 31. Fixing part. 32. Second inclined side, 33. Upper straight side, 34. Inclined bolt through hole, 35. Bolt hole, 36. Pressure rod fixing seat, 37. First positioning pin, 38. Second positioning pin, 39. Mounting part, 40. Fixing bolt through hole, 41. Third inclined side, 42. Lower straight side, 43. Inclined hole, 01. Upper fixing plate, 02. Lower fixing plate, 03. Hook, 04. Cutting knife, 05. Limiting window, 06. Limiting part, 07. Adjusting rod, 08. Center positioning hole, 09. Upper positioning hole, 010. Lower positioning hole, 011. Rod body, 012. Fixing hole, 013. Center adjusting hole, 014. Upper adjusting hole, 015. Detailed Implementation

[0031] The invention will now be further described with reference to the accompanying drawings.

[0032] See Figure 1 —— Figure 3 The present invention provides a color-changing head for a knitting machine, comprising: a cover plate 1, wherein the cover plate 1 includes a front cover plate 1 and a rear cover plate 1 combined together; the back structure of the color-changing head of the present invention is similar to... Figure 1 The front structure shown is the same; the following description will only focus on the front structure of the color-changing head.

[0033] The cover plate 1 of the present invention has a first recess 2 formed on the left side of its upper end, and the first recess 2 is connected to a first bevel 11. A pressing handle 3 and a positioning plate 5 are rotatably mounted on the cover plate 1. The pressing handle 3 and the cover plate 1 are pivotally connected by a first pin 15, and the positioning plate 5 and the cover plate 1 are pivotally connected by a third pin 17. A second pin 16 is fixed on the cover plate 1. A limiting hole 21 is provided on the pressing handle 3, and the second pin 16 is located in the limiting hole 21. The pressing handle 3 has an upper buckle 4, which is rotatably positioned above the first recess 2. A second recess 12 is located in the middle of the upper end of the cover plate 1.

[0034] A gear 6 is installed on the upper right side of the cover plate 1 of the present invention. The positioning plate 5 has a positioning part 9, which rotates and engages with the teeth of the gear 6. The pressing handle 3 is linked to the positioning plate 5. Specifically, the pressing handle 3 has a first locking tooth 7, and the positioning plate 5 has a second locking tooth 8. The first locking tooth 7 and the second locking tooth 8 mesh. When the pressing handle 3 rotates, the first locking tooth 7 rotates, which drives the second locking tooth 8 to rotate, causing the positioning plate 5 to rotate and thus disengage or position the positioning part 9 from the gear 6.

[0035] See Figure 2 The pressing handle 3 of the present invention includes an upper rotating arm 18 and a lower rotating arm 19. The upper rotating arm 18 and the lower rotating arm 19 are generally L-shaped. A first pin hole 20 is provided at the connection position of the upper rotating arm 18 and the lower rotating arm 19, and a first pin 15 passes through the first pin hole 20.

[0036] The upper rotating arm 18 of the present invention has a limiting hole 21 on its upper part, and the second pin 16 passes through the limiting hole 21 to limit the rotation angle of the upper rotating arm 18. The upper left side of the upper rotating arm 18 protrudes to form an upper buckle 4, which is used to fasten the first positioning pin 37 of the pressure rod fixing seat 36, so that the color-changing head is fixed to the pressure rod fixing seat 36.

[0037] The lower rotating arm 19 of the present invention has a protruding middle protrusion 22, and a first retaining tooth 7 is formed on the right side of the middle protrusion 22.

[0038] The outer end of the lower rotating arm 19 of the present invention is a pressing part 23, and a spring fixing hole is provided on the pressing part 23 for fixing the spring 10. The pressing part 23 is provided with a connecting hole 24, and a connecting shaft 30 passes through the connecting hole 24. The connecting shaft 30 is connected to the connecting hole 24 of the pressing part 23 of the lower rotating arm 19 on the back of the color-changing head.

[0039] The lower rotating arm 19 of the present invention has a curved portion 25 between the middle protrusion 22 and the pressing portion 23, and the curved portion 25 forms a concave relief portion 26.

[0040] See Figure 3 The positioning plate 5 of the present invention is generally tritrapezoidal in shape. The lower end of the positioning plate 5 has an outward protrusion 27, which is located next to the clearance portion 26 of the pressing handle 3. The outward protrusion 27 has a second pin hole 28 through which a third pin 17 passes. A second locking tooth 8 is formed on the left side of the positioning plate 5, which meshes with the first locking tooth 7 of the upper rotating arm 18. The bottom end of the positioning plate 5 has a flat bottom edge 29, which rotates to approach one side of the curved portion 25 of the pressing handle 3. The top right side of the positioning plate 5 has a positioning portion 9, which rotates and engages with the teeth of the gear 6 to achieve positioning.

[0041] See Figure 4 In this invention, a fastener 31 is fixed between the front cover plate 1 and the back cover plate 1. The fastener 31 has two parallel second inclined sides 32. An inclined bolt through hole 34 is provided between the two second inclined sides 32. The bolt passes through the inclined bolt through hole 34 and is locked to the pressure rod fixing seat 36, thereby realizing the fixation of the color-changing head and the pressure rod fixing seat 36.

[0042] The fastener 31 of the present invention has a bolt hole 35 on the front. The bolt 14 passes through the gear 6, the mounting hole 13 of the cover plate 1 and is fixed together with the bolt hole 35, thereby fixing the fastener 31 and the color-changing head. At the same time, the color-changing head can rotate relative to the fastener 31.

[0043] The top of the fastener 31 of the present invention has an upper straight edge 33.

[0044] See Figure 5 The left end of the pressure rod fixing seat 36 of the present invention has a first positioning pin 37 and the middle part has a second positioning pin 38. The first positioning pin 37 cooperates with the first recess 2 of the color-changing head, and the second positioning pin 38 cooperates with the second recess 12 of the color-changing head.

[0045] The right end of the pressure bar fixing seat 36 of the present invention has a mounting part 39, and the mounting part 39 has a vertically opened fixing bolt through hole 40. The fixing bolt through hole 40 is used to fix the pressure bar fixing seat 36 to the knitting machine with bolts. The lower end of the mounting part 39 has a third inclined side 41 and a lower straight side 42. The third inclined side 41 fits with the second inclined side 32 of the fixing member 31, and the lower straight side 42 fits with the upper straight side 33 of the fixing member 31.

[0046] The third inclined side 41 of the present invention has an inclined hole 43, which is connected to the inclined bolt through hole 34 of the fixing member 31. The bolt is used to connect the pressure rod fixing seat 36 and the fixing member 31 at an inclined angle, so that the color-changing head can be installed at an angle. During installation, it will not be interfered with by the parts of the color-changing head, and disassembly and installation are convenient and quick.

[0047] See Figure 6 In this invention, the first notch 2 of the color-changing head contacts the lower part of the first positioning pin 37, and the upper buckle 4 of the pressing handle 3 fastens the upper part of the first positioning pin 37. On the one hand, the upper buckle 4 is kept in contact with the first positioning pin 37 by the action of the spring 10. On the other hand, the positioning part 9 of the positioning plate 5 is engaged with the gear 6, so that the second locking tooth 8 of the positioning plate 5 meshes with the first locking gear 7 of the pressing handle 3, keeping the upper buckle 4 in contact with the first positioning pin 37.

[0048] See Figure 7 When the connecting shaft 30 is pressed down and the pressing part 23 of the pressing handle 3 is pressed down, the spring 10 is stretched and deformed, the pressing handle 3 rotates clockwise, the first locking tooth 7 rotates and drives the second locking tooth 8 to rotate, the positioning plate 5 rotates, the positioning part 9 of the positioning plate 5 disengages from the gear 6, at the same time, the upper buckle part 4 of the pressing handle 3 disengages from the first positioning pin 37, the color-changing head moves downward due to gravity, the first notch 2 and the first inclined edge 11 disengage from the first positioning pin 37, and the color-changing head rotates counterclockwise relative to the fixing part 31, as... Figure 8 As shown. Release the pressing handle 3, and the pressing handle 3 will return to its original position under the pull of the spring 10. At this time, the cutting blade and other parts of the color-changing head can be repaired, which is very convenient.

[0049] See Figure 9 — Figure 13The color-changing head cutter assembly of the present invention includes: an upper fixing plate 01, a lower fixing plate 02, a hook 03, a cutter 04, and a limiting window 05. The upper fixing plate 01 and the lower fixing plate 02 are fixedly installed. The hook 03 and the cutter 04 are sandwiched between the upper fixing plate 01 and the lower fixing plate 02. A limiting window 05 is opened in the middle of the upper fixing plate 01. The cutter 04 has a limiting part 06, which is located inside the limiting window 05. An adjusting rod 07 is fixedly installed between the upper fixing plate 01 and the lower fixing plate 02. The adjusting rod 07 has multiple adjusting holes, and the cutter 04 has multiple positioning holes. A screw passes through the adjusting hole of the adjusting rod 07 and is fixed to the positioning hole of the cutter 04, thereby realizing the positional adjustment and fixation of the cutter 04 and the adjusting rod 07.

[0050] See Figure 10 , Figure 11 The cutter 04 of the present invention has three positioning holes, namely a central positioning hole 08, an upper positioning hole 09, and a lower positioning hole 010, which are arranged longitudinally.

[0051] See Figure 13 The adjusting rod 07 of the present invention has a fixing hole 012 on its rod body 011, through which the upper fixing plate 01, the lower fixing plate 02 and the adjusting rod 07 are fixed together.

[0052] See Figure 13 The upper part of the adjusting rod 07 of the present invention is thicker than the rod body 011 so that the upper fixing plate 01 and the lower fixing plate 02 can fit tightly against the rod body 011. The upper part of the adjusting rod 07 is provided with three adjusting holes, namely a central adjusting hole 013, an upper adjusting hole 014, and a lower adjusting hole 015, which are arranged longitudinally.

[0053] See Figure 14 — Figure 16 The distance between the center adjustment hole 013 of the adjustment rod 07 and the upper adjustment hole 014 and the lower adjustment hole 015 is greater than the distance between the center positioning hole 08 of the cutter 04 and the upper positioning hole 09 and the lower positioning hole 010, thereby enabling at least one set of positioning holes and adjustment holes to be misaligned, thereby realizing the relative movement adjustment and positioning of the cutter 04 and the adjustment rod 07.

[0054] like Figure 14 As shown, the adjusting screw is passed through the center adjusting hole 013 of the adjusting rod 07 and fixed together with the center positioning hole 08 of the cutter 04, which serves as the reference position of the cutter 04.

[0055] like Figure 15As shown, by passing the adjusting screw through the lower adjusting hole 015 of the adjusting rod 07 and fixing it together with the lower positioning hole 010 of the cutter 04, the cutter 04 can be adjusted downward and retracted, thereby achieving the position adjustment effect of the cutter 04 to match the needs of different yarns.

[0056] like Figure 16 As shown, by passing the adjusting screw through the upper adjusting hole 014 of the adjusting rod 07 and fixing it together with the upper positioning hole 09 of the cutter 04, the cutter 04 can be adjusted upward and extended, thereby achieving the position adjustment effect of the cutter 04 to match the needs of different yarns.

[0057] Of course, the above-described embodiments are merely preferred examples of the present invention and are not intended to limit the scope of the present invention. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of the present invention should be included within the scope of the claims of the present invention.

Claims

1. A color-changing head for a knitting machine, comprising a cover plate, characterized in that: The upper end of the cover plate has a first notch formed therein. The cover plate is rotatably mounted with a pressing handle and a positioning plate. The pressing handle has an upper buckle part, which rotates to be located above the first notch. A gear is installed on the right side of the upper end of the cover plate. The positioning plate has a positioning part, which rotates to engage with the gear teeth. The pressing handle is linked to the positioning plate.

2. The color-changing head for a knitting machine according to claim 1, characterized in that: The pressing handle has a first locking tooth, and the positioning plate has a second locking tooth; the first locking tooth and the second locking tooth engage.

3. A color-changing head for a knitting machine according to claim 2, characterized in that: The pressing handle includes an upper rotating arm and a lower rotating arm. The lower rotating arm has a protruding middle part, and a first locking tooth is formed on the right side of the middle protruding part.

4. A color-changing head for a knitting machine according to claim 1, characterized in that: There are two cover plates, and a fastener is fixed between the two cover plates. The fastener has through holes for inclined bolts.

5. A color-changing head for a knitting machine according to claim 4, characterized in that: The front end face of the fastener has a bolt hole, and the bolt passes through the gear, the cover plate and is fixed together with the bolt hole.

6. A color-changing head for a knitting machine according to claim 4, characterized in that: The fastener connects to the pressure rod fixing seat. The left end of the pressure rod fixing seat has a first positioning pin, which engages with a first recess. The right end of the pressure rod fixing seat has a mounting part with a vertically opened fixing bolt through hole. The lower end of the mounting part has an inclined hole that communicates with the inclined bolt through hole of the fastener.

7. A color-changing head for a knitting machine according to claim 3, characterized in that: The middle protrusion and the pressing part have a curved part, which forms a concave relief part. The lower end of the positioning plate has an outward protrusion, which is located next to the relief part.

8. A color-changing head for a knitting machine according to claim 1, characterized in that: A pin is fixed on the cover plate, and a limit hole is provided on the pressing handle, with the pin located inside the limit hole.

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