Piezoelectric jacquard device for warp knitting machine

Abstract

A piezoelectric jacquard device for a warp knitting machine comprises a novel base, a novel bimorph, a plug assembly, a shield assembly, a cable bundle assembly, a pouring sealant, a grounding screw, a novel guide needle assembly, a stainless steel front blocking tooth assembly, a rotating shaft, a rotating shaft cover plate, a cover plate fixing screw and a front blocking tooth fixing screw. Wherein the novel yarn guide needle assembly comprises a plastic clamping sleeve and a novel yarn guide needle, and the stainless steel front blocking tooth assembly comprises stainless steel upper blocking teeth and stainless steel lower blocking teeth. One end of the novel bimorph is limited and fixed in a rear blocking tooth of the novel base, and the other end of the novel bimorph is limited in a bimorph swing limiting groove in the novel yarn guide needle assembly to form flexible hinge connection; the novel yarn guide needle assembly is matched and positioned with the rotating shaft through a rotating shaft positioning hole in the novel yarn guide needle assembly; a novel yarn guide needle of the novel yarn guide needle assembly is limited up and down and left and right in a yarn guide needle limiting groove in the stainless steel front blocking tooth assembly.

Description

Technical Field

[0001] This utility model belongs to the field of textile machinery, and specifically relates to a piezoelectric jacquard device for warp knitting machines. Background Technology

[0002] In the warp knitting textile industry, the common practice for computerized jacquard machines is to use computer-controlled piezoelectric jacquard devices for weaving. As the patterns become more and more complex, the number of jacquards used in warp knitting machines is also increasing.

[0003] A schematic diagram of an existing piezoelectric Jacquard device is shown below. Figure 1 As shown, the existing base 1 ( Figure 2 The components include: 1) needle selector 2; 2) plug assembly 3; 3) protective cover assembly 4; 4) cable bundle assembly 5; 6) potting compound 6; and 7) grounding screw. The needle selector 2 is composed of a dual piezoelectric chip 10, a needle sleeve 11, a yarn guide needle 12, and an end substrate bonding portion 13. Figure 3 The double crystal on the needle selection plate is fixed in the rear stop tooth 9 on the existing base 1 to form a cantilever beam mounting structure, and the guide needle 12 swings left and right between the front stop teeth 8 on the existing base 1.

[0004] Existing piezoelectric jacquard devices can achieve jacquard function for warp knitting machines with 12-gauge and above, but for coarser warp knitting machines such as 10-gauge, 9-gauge, 8-gauge, 7-gauge, and 6-gauge machines, the double crystal swing amplitude is too large and the yarn is too thick (generally above 500D), so the piezoelectric jacquard function cannot be achieved. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the above-mentioned background technology and propose a piezoelectric jacquard device for warp knitting machines. By changing the structure of the existing base, changing the structural design of the double piezoelectric crystal, and changing the structural design of the yarn guide needle, the piezoelectric jacquard function of warp knitting machines with coarse gauges such as 10-needle, 9-needle, 8-needle, 7-needle, and 6-needle can be realized.

[0006] A piezoelectric jacquard device for a warp knitting machine includes a novel base, novel dual piezoelectric crystals, a plug assembly, a protective cover assembly, a cable bundle assembly, potting compound, a grounding screw, a novel yarn guide needle assembly, a stainless steel front stop tooth assembly, a rotating shaft, a rotating shaft cover plate, a cover plate fixing screw, and a front stop tooth fixing screw. The novel yarn guide needle assembly includes a plastic sleeve and novel yarn guide needles. The stainless steel front stop tooth assembly includes an upper stainless steel stop tooth and a lower stainless steel stop tooth. The device is characterized in that one end of the novel dual piezoelectric crystals is fixed in the rear stop tooth of the novel base, and the other end is fixed in the dual crystal swing limiting groove on the novel yarn guide needle assembly, forming a flexible hinge connection. The novel yarn guide needle assembly is positioned by engaging with the rotating shaft through a rotating shaft positioning hole. The novel yarn guide needles of the novel yarn guide needle assembly are limited vertically, horizontally, and vertically in the yarn guide needle limiting groove on the stainless steel front stop tooth assembly.

[0007] This utility model discloses a piezoelectric jacquard device for a warp knitting machine. When the novel dual piezoelectric crystals swing to the left in the energized state, they drive the dual crystal swing limiting groove on the novel yarn guide needle assembly to swing to the left around the rotation axis, thereby driving the novel yarn guide needle to swing to the right in the yarn guide needle limiting groove of the stainless steel front stop tooth assembly. When the novel dual piezoelectric crystals swing to the right in the energized state, they drive the dual crystal swing limiting groove on the novel yarn guide needle assembly to swing to the right around the rotation axis, thereby driving the novel yarn guide needle to swing to the left in the yarn guide needle limiting groove of the stainless steel front stop tooth assembly.

[0008] This utility model discloses a piezoelectric jacquard device for warp knitting machines. By changing the structure of the existing base, the structural design of the double piezoelectric crystal, and the structural design of the yarn guide needle, it enables piezoelectric jacquard functions for warp knitting machines of coarse gauges such as 10-needle, 9-needle, 8-needle, 7-needle, and 6-needle. Attached Figure Description

[0009] Figure 1 Existing piezoelectric Jacquard device structural diagram

[0010] Figure 2 Existing base structure diagram

[0011] Figure 3 Existing needle selection plate structure diagram

[0012] Figure 4 A plan view of the structure of this utility model piezoelectric jacquard device.

[0013] Figure 5 Figure 4 Enlarged view of part A in the image

[0014] Figure 6 A three-dimensional structural schematic diagram of the piezoelectric jacquard device of this utility model.

[0015] Figure 7 3D exploded view of the piezoelectric jacquard device of this utility model

[0016] Figure 8 Schematic diagram of the new base structure

[0017] Figure 9 Schematic diagram of the novel dual piezoelectric wafer structure

[0018] Figure 10 Schematic diagram of the new yarn guide needle assembly

[0019] Figure 11 Stainless steel front deflector assembly structural diagram

[0020] Figure 12 Stainless steel upper stop tooth structure diagram

[0021] Figure 13 Schematic diagram of stainless steel lower stop tooth structure

[0022] Figure 14 Schematic diagram of the shaft cover plate structure

[0023] Figure 15 Schematic diagram of the motion structure of the novel dual piezoelectric crystal and novel yarn guide needle assembly

[0024] In the above figures: 1. Existing base; 2. Needle selector; 3. Plug assembly; 4. Protective cover assembly; 5. Cable harness assembly; 6. Encapsulant; 7. Grounding screw; 8. Front stop tooth; 9. Rear stop tooth; 10. Dual piezoelectric chip; 11. Needle sleeve; 12. Yarn guide needle; 13. End substrate bonding area; 14. New base; 15. New dual piezoelectric chip; 16. New yarn guide needle assembly; 17. Stainless steel front stop tooth assembly; 18. Rotating shaft; 19. Rotating shaft cover plate; 20. Cover plate fixing screw; 21. Front stop tooth fixing screw; 22. Cover plate locking screw hole; 23. Rotary shaft fixing hole; 24. New type of yarn guide needle movement clearance groove; 25. Front stop tooth fixing screw hole; 26. Rotary shaft positioning hole; 27. Double crystal swing limiting groove; 28. Plastic sleeve; 29. ​​New type of yarn guide needle; 30. Stainless steel upper stop tooth; 31. Stainless steel lower stop tooth; 32. Front stop tooth fixing through hole; 33. Yarn guide needle limiting groove; 34. Rotary shaft cover plate mounting through hole. Detailed Implementation

[0025] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0026] like Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 11 , Figure 12 , Figure 13 , Figure 14As shown. A piezoelectric jacquard device for a warp knitting machine includes a novel base 14, a novel dual piezoelectric crystal 15, a plug assembly 3, a protective cover assembly 4, a cable bundle assembly 5, potting compound 6, a grounding screw 7, a novel yarn guide needle assembly 16, a stainless steel front stop tooth assembly 17, a rotating shaft 18, a rotating shaft cover plate 19, a cover plate fixing screw 20, and a front stop tooth fixing screw 21. The novel yarn guide needle assembly 16 includes a plastic sleeve 28 and a novel yarn guide needle 29, and the stainless steel front stop tooth assembly 17 includes a stainless steel upper stop tooth 30 and... The stainless steel lower stop tooth 31 is characterized by: one end of the novel dual piezoelectric crystal 15 being fixed in the rear stop tooth 9 of the novel base 14, and the other end being fixed in the dual crystal swing limiting groove 27 on the novel yarn guide needle assembly 16 to form a flexible hinge connection; the novel yarn guide needle assembly 16 is positioned by cooperating with the rotating shaft 18 through the rotating shaft positioning hole 26 on the novel yarn guide needle assembly 16; and the novel yarn guide needle 29 of the novel yarn guide needle assembly 16 is limited up, down, left, and right in the yarn guide needle limiting groove 33 on the stainless steel front stop tooth assembly 17. One end of the rotating shaft 18 is rigidly fixed in the rotating shaft fixing hole 23 on the novel base 14, and the other end of the rotating shaft 18 is fixed and limited by the rotating shaft cover plate 19, and the rotating shaft cover plate 19 is fixed in the cover plate locking screw hole 22 of the novel base 14 by the cover plate fixing screw 20. The stainless steel front deflector assembly 17 is fixed in the front deflector fixing screw hole 25 of the new base 14 by passing the front deflector fixing screw 21 through the front deflector fixing through hole 32.

[0027] This utility model discloses a piezoelectric jacquard device for a warp knitting machine. When the novel dual piezoelectric crystal 15 swings to the left in the energized state, it drives the dual crystal swing limiting groove 27 on the novel yarn guide needle assembly 16 to swing to the left around the rotating shaft 18, thereby driving the novel yarn guide needle 29 to swing to the right in the yarn guide needle limiting groove 33 of the stainless steel front stop tooth assembly 17. Figure 15 When the novel dual piezoelectric crystal 15 swings to the right in the energized state, it drives the dual crystal swing limiting groove 27 on the novel yarn guide needle assembly 16 to swing to the right around the rotating shaft 18, thereby driving the novel yarn guide needle 29 to swing to the left in the yarn guide needle limiting groove 33 of the stainless steel front stop tooth assembly 17.

[0028] This utility model discloses a piezoelectric jacquard device for warp knitting machines. By changing the structure of the existing base, the structural design of the double piezoelectric crystal, and the structural design of the yarn guide needle, it enables piezoelectric jacquard functions for warp knitting machines of coarse gauges such as 10-needle, 9-needle, 8-needle, 7-needle, and 6-needle.

Claims

1. A piezoelectric jacquard device for warp knitting machine, comprising a new base (14), a new double piezoelectric wafer (15), a plug assembly (3), a shield assembly (4), a cable harness assembly (5), a potting glue (6), a grounding screw (7), a new guide needle assembly (16), a stainless steel front stop tooth assembly (17), a rotating shaft (18), a rotating shaft cover plate (19), a cover plate fixing screw (20), a front stop tooth fixing screw (21), wherein the new guide needle assembly (16) comprises a plastic sleeve (28) and a new guide needle (29), and the stainless steel front stop tooth assembly (17) comprises a stainless steel upper stop tooth (30) and a stainless steel lower stop tooth (31), characterized in that: The new bimorph piezoelectric wafer (15) is fixed at one end in the rear blocking tooth (9) of the new base (14) and at the other end in the bimorph wafer swing limiting slot (27) on the new guide needle assembly (16) to form a flexible hinge connection; the new guide needle assembly (16) is positioned by cooperating with the rotating shaft (18) through the rotating shaft positioning hole (26) on the new guide needle assembly (16); and the new guide needle (29) of the new guide needle assembly (16) is limited up, down, left and right in the guide needle limiting slot (33) on the stainless steel front blocking tooth assembly (17).

2. A piezoelectric jacquard device for a warp knitting machine according to claim 1, characterized in that: When the new bimorph piezoelectric wafer (15) swings to the left in the powered state, the bimorph wafer swing limiting slot (27) on the new guide needle assembly (16) swings to the left around the rotating shaft (18), thereby driving the new guide needle (29) to swing to the right in the guide needle limiting slot (33) of the stainless steel front blocking tooth assembly (17); when the new bimorph piezoelectric wafer (15) swings to the right in the powered state, the bimorph wafer swing limiting slot (27) on the new guide needle assembly (16) swings to the right around the rotating shaft (18), thereby driving the new guide needle (29) to swing to the left in the guide needle limiting slot (33) of the stainless steel front blocking tooth assembly (17).

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