Three-station piezoelectric jacquard and piezoelectric separation blade structure of three-station piezoelectric jacquard

Abstract

The piezoelectric blocking piece structure of the three-station piezoelectric jacquard comprises a main body part, a piezoelectric bending brake and a stitch length adjusting part, and the utility model further relates to the three-station piezoelectric jacquard with the piezoelectric blocking piece structure. According to the three-station piezoelectric jacquard, when the piezoelectric separation blade structure is used for driving a corresponding yarn guide needle in the three-station piezoelectric jacquard to be switched to a middle station, one part of the needle pitch adjusting part abuts against at least one part of the yarn guide needle, and the other part of the needle pitch adjusting part is arranged between the main body part and the yarn guide needle. Therefore, the needle pitch of the yarn guide needle is kept, and the needle pitch is kept accurate and does not deviate when the yarn guide needle is located at the middle station.

Description

Technical Field

[0001] The utility model relates to the field of piezoelectric jacquard, in particular to a three-station piezoelectric jacquard and a piezoelectric baffle structure of the three-station piezoelectric jacquard. Background Art

[0002] Jacquard mainly refers to piezoelectric jacquard, which can shift a needle distance under the control of an electric current pulse. Initially, this type of jacquard only had a horizontal movement of the needle back. There were three kinds of tissue changes in the two-needle, three-needle, and four-needle technologies, which can basically achieve three levels of patterns: "thick, thin, and mesh", but with little tissue effect, and it is difficult to meet people's requirements for the diversity of fabric patterns.

[0003] The traditional piezoelectric jacquard is a double-station jacquard, which only has two stations on the left and right. In recent years, China has begun to study three-station jacquards. A Chinese invention patent (application number: 202110903323.1, publication number: CN113789605B) discloses a method for knitting warp knitting jacquard products with three-station jacquards. In order to produce the warp knitting jacquard products with three-station jacquards, it is necessary to install a three-station jacquard on the warp knitting machine.

[0004] At present, the three-station jacquard requires the yarn guide needle to be able to switch positions between the left station, the middle station and the right station respectively. Compared with the 16 jacquard organizational units of the double-station jacquard, the three-station jacquard can form 36 jacquard organizational units after adding an offset position, which can form more layered effects.

[0005] The present disclosure provides a piezoelectric baffle structure to limit the position of a yarn guide needle when the work position is switched, so that when the yarn guide needle switches the work position in a swinging manner, the yarn guide needle can be switched to a predetermined work position more accurately. Utility Model Content

[0006] The utility model provides a three-station piezoelectric jacquard and a piezoelectric baffle structure of the three-station piezoelectric jacquard, the main purpose of which is to overcome the defect that the existing piezoelectric jacquard has only two stations and cannot realize a three-station jacquard.

[0007] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0008] The piezoelectric baffle structure of the three-station piezoelectric jacar includes: a main body, a piezoelectric bending brake and a needle pitch adjustment part, wherein the piezoelectric bending brake is used to drive the main body to swing back and forth, the front part of the piezoelectric bending brake is connected to the rear part of the main body, and when the power connection end of the piezoelectric bending brake is energized, the piezoelectric ceramic piece of the piezoelectric bending brake drives the main body to swing, and the needle pitch adjustment part is arranged on a part of the main body; wherein, when the piezoelectric baffle structure is used to drive the corresponding guide needle in the three-station piezoelectric jacar to switch to the middle station, a part of the needle pitch adjustment part abuts against at least a part of the guide needle, and another part of the needle pitch adjustment part is arranged between the main body and the guide needle, so as to maintain the needle pitch of the guide needle.

[0009] Furthermore, a first groove is provided on one side surface of the main body, and when the corresponding guide needle in the three-position piezoelectric jacquard is switched to the middle position, the raised portion of the comb holding end on the tail of the guide needle is adaptively accommodated in the first groove, and the depth of the first groove is greater than or equal to the thickness of the raised portion of the comb holding end.

[0010] Furthermore, a second slot is disposed on the other side surface of the main body, and the second slot is arranged opposite to the needle distance adjustment portion.

[0011] Furthermore, the main body, the first slot, the needle pitch adjustment portion and the second slot are connected as a whole. When the piezoelectric baffle structure is configured in the three-position piezoelectric jacquard, the opening portion of the first slot is arranged in the direction of the holding end of the comb bar, the needle pitch adjustment portion is arranged in the direction of the main body toward the side of the yarn guide needle, and the second slot is arranged in the direction of the main body toward the side of the front teeth of the three-position piezoelectric jacquard.

[0012] Furthermore, a portion of the main body is configured as the front portion of the main body, the needle distance adjusting portion is stacked on the front portion of the main body, and the outer shape of the needle distance adjusting portion is a convex shape.

[0013] Furthermore, the needle distance is T, where T=needle bed unit length L / machine gauge E.

[0014] Furthermore, the main body has a first outer sheet, an inner sheet and a second outer sheet, the needle distance adjustment portion is configured as an adjustment sheet, the first outer sheet is provided with at least one positioning circular hole, the second outer sheet is provided with at least one positioning circular hole, the inner sheet is provided with at least one positioning circular hole, the first outer sheet, the inner sheet, the second outer sheet and the adjustment sheet are stacked together to form a whole, and during the stacking process, the positioning circular holes are used as a reference to align the positioning circular holes with each other.

[0015] Furthermore, the thickness of the needle distance adjustment part is 0.1 to 0.15 mm.

[0016] Furthermore, the piezoelectric baffle structure can be replaceably mounted on a conductive connector within the three-station piezoelectric jacquard.

[0017] A three-station piezoelectric jacquard has a yarn guide needle and a piezoelectric baffle structure. The yarn guide needle has a left station, a middle station and a right station. The piezoelectric baffle structure is used to drive the corresponding yarn guide needle to switch to the middle station. The piezoelectric baffle structure is the piezoelectric baffle structure described above.

[0018] Compared with the prior art, the beneficial effects produced by the utility model are:

[0019] The utility model has a simple structure and strong practicality. A piezoelectric baffle structure is arranged in the three-position piezoelectric jacquard, and the piezoelectric baffle structure drives the corresponding yarn guide needle to switch to the middle position, so that the yarn guide needle of the three-position piezoelectric jacquard has a left position, a middle position and a right position. When the piezoelectric baffle structure is used to drive the corresponding yarn guide needle in the three-position piezoelectric jacquard to switch to the middle position, a part of the needle distance adjustment part abuts against at least a part of the yarn guide needle, and the other part of the needle distance adjustment part is arranged between the main body and the yarn guide needle, so as to keep the needle distance of the yarn guide needle accurate and not offset when the yarn guide needle is in the middle position. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Schematic diagram of the structure of the piezoelectric baffle structure.

[0021] Figure 2 This is a schematic diagram of the structure of a three-station piezoelectric jacquard.

[0022] Figure 3 It is a structural schematic diagram of the needle distance adjustment unit.

[0023] Figure 4 It is a structural diagram of the torque regulator.

[0024] Figure 5 It is a structural schematic diagram of the limiting part. DETAILED DESCRIPTION

[0025] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The same or similar reference numerals in each figure represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0026] Unless otherwise defined, the technical or scientific terms used herein shall have the usual meanings understood by persons of ordinary skill in the field to which the utility model belongs. The words "first", "second" and similar terms used in the patent application specification and claims of the utility model do not indicate any order, quantity or importance, but are only used to distinguish different components. "Including" or "having" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Inside", "outside", "upper", "lower" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly. "Multiple" means at least two.

[0027] Embodiment 1, refer to Figure 1 , Figure 2 and Figure 3 , a three-station piezoelectric jacquard and a piezoelectric baffle structure of the three-station piezoelectric jacquard, a three-station piezoelectric jacquard 11 comprises at least one bottom base 10, a plurality of yarn guide needles 12 spaced apart on the bottom base 10, a plurality of piezoelectric baffle structures 13 spaced apart on the bottom base 10, and a plurality of front teeth 14 spaced apart on the front of the bottom base 10, the lower part of the piezoelectric baffle structure 13 extends into the limited space 15 between the two front teeth 14 assigned to the piezoelectric baffle structure 13, and at least one piezoelectric baffle structure 13 and at least one front tooth 14 are arranged on both sides of each yarn guide needle 12. The yarn guide needle 12 has a left station, a middle station and a right station, and the piezoelectric baffle structure 13 is used to drive the corresponding yarn guide needle 12 to switch to the middle station.

[0028] Reference Figure 1 The piezoelectric baffle structure 13 of the three-station piezoelectric jacar 11 includes a main body 16 , a piezoelectric bending brake 17 and a needle distance adjustment part 18 .

[0029] Reference Figure 1 , Figure 2 and Figure 3 The piezoelectric bending brake 17 is used to drive the main body 16 to swing back and forth. The front of the piezoelectric bending brake 17 is connected to the rear of the main body 16. When the power supply end of the piezoelectric bending brake 17 is energized, the piezoelectric ceramic piece of the piezoelectric bending brake 17 drives the main body 16 to swing.

[0030] Reference Figure 1 , Figure 2 and Figure 3The needle pitch adjusting portion 18 is arranged on a portion of the main body 16, wherein, when the piezoelectric baffle structure 13 is used to drive the corresponding yarn guide needle 12 in the three-position piezoelectric jacar 11 to switch to the middle position, a portion of the needle pitch adjusting portion 18 abuts against at least a portion of the yarn guide needle 12, and another portion of the needle pitch adjusting portion 18 is arranged between the main body 16 and the yarn guide needle 12, thereby maintaining the needle pitch of the yarn guide needle 12.

[0031] Reference Figure 1 , Figure 2 and Figure 3 By setting a piezoelectric baffle structure 13 in the three-position piezoelectric jacquard 11, the piezoelectric baffle structure 13 drives the corresponding yarn guide needle 12 to switch to the middle position, so that the yarn guide needle 12 of the three-position piezoelectric jacquard 11 has a left position, a middle position and a right position. When the piezoelectric baffle structure 13 is used to drive the corresponding yarn guide needle 12 in the three-position piezoelectric jacquard 11 to switch to the middle position, a part of the needle distance adjustment part 18 abuts against at least a part of the yarn guide needle 12, and another part of the needle distance adjustment part 18 is arranged between the main body 16 and the yarn guide needle 12, so as to keep the needle distance of the yarn guide needle 12 accurate and not offset when the yarn guide needle 12 is in the middle position.

[0032] Reference Figure 1 , Figure 2 and Figure 3 A first slot 20 is provided on one side surface of the main body 16. When the corresponding guide needle 12 in the three-station piezoelectric jacar 11 is switched to the middle station, the raised portion 21 of the comb holding end 23 on the tail of the guide needle 12 is adaptively accommodated in the first slot 20. The depth of the first slot 20 is greater than or equal to the thickness of the raised portion 21 of the comb holding end 23.

[0033] Reference Figure 1 , Figure 2 and Figure 3 By setting a first slot 20 for accommodating the raised portion 21 of the comb holding end 23, the influence of the raised portion 21 of the comb holding end 23 on the needle pitch of the yarn guide needle 12 is eliminated when the corresponding yarn guide needle 12 in the three-station piezoelectric jacquard 11 is switched to the middle station, so that the needle pitch of the yarn guide needle 12 is accurate and not offset when the yarn guide needle 12 is in the middle station.

[0034] Reference Figure 1 , Figure 2 and Figure 3 A second slot 22 is disposed on the other side of the main body 16 , and the second slot 22 is arranged opposite to the needle distance adjustment portion 18 .

[0035] Reference Figure 1 , Figure 2 and Figure 3The main body 16, the first slot 20, the needle pitch adjustment part 18 and the second slot 22 are connected as one body. When the piezoelectric baffle structure 13 is arranged in the three-station piezoelectric jacquard 11, the opening of the first slot 20 is arranged in the direction of the comb holding end 23, the needle pitch adjustment part 18 is arranged in the direction of the main body 16 toward the yarn guide needle 12, and the second slot 22 is arranged in the direction of the main body 16 toward the front teeth 14 of the three-station piezoelectric jacquard 11. A piezoelectric jacquard element 24 is arranged on the tail of the comb holding end 23. When the piezoelectric jacquard element 24 is energized, the piezoelectric jacquard element 24 drives the comb holding end 23 to swing left and right by swinging.

[0036] Reference Figure 1 , Figure 2 and Figure 3 The thickness of the needle distance adjusting part 18 is 0.1-0.15 mm. The needle distance adjusting part 18 is made of a material selected from stainless steel, metal, alloy, magnesium-aluminum alloy, magnesium alloy, aluminum alloy or resin.

[0037] Reference Figure 1 , Figure 2 and Figure 3 The main body 16 is made of one of stainless steel materials, metal materials, alloy materials, magnesium-aluminum alloy materials, magnesium alloy materials, aluminum alloy materials or resin materials.

[0038] Reference Figure 3 , Figure 4 and Figure 5 The base 10 is made of one of metal materials, aluminum alloy, magnesium alloy, magnesium-aluminum alloy, stainless steel material, carbon fiber material or resin material.

[0039] Reference Figure 1 , Figure 2 and Figure 3 The piezoelectric bending brake 17 includes an insulating first substrate 31, two piezoelectric ceramic sheets 30 respectively wrapped on both sides of the first substrate 31, and a first conductive contact 32 is arranged on the tail of the piezoelectric ceramic sheet 30 to achieve electrical connection. The first substrate 31 is made of glass fiber steel sheet material.

[0040] Reference Figure 2 and Figure 3 The piezoelectric jacquard element 24 includes an insulating second substrate, two second piezoelectric ceramic sheets wrapped on both sides of the second substrate, and a second conductive contact is arranged on the tail of the second piezoelectric ceramic sheet to achieve electrical connection. The second substrate is made of glass fiber steel sheet material.

[0041] Reference Figure 1 , Figure 2 and Figure 3By arranging the second slot 22 on the other side surface of the main body 16 and opposite to the needle distance adjustment portion 18, a second gap 42 is left between the piezoelectric baffle structure 13 and the corresponding front tooth 14 in the three-station piezoelectric jacquard 11 to improve the stress condition of the second piezoelectric ceramic sheet in the piezoelectric jacquard element 24, thereby extending the service life of the second piezoelectric ceramic sheet in the piezoelectric bending brake 17.

[0042] The glass fiber sheet is also called glass fiber steel sheet. The glass fiber sheet is a product made by pre-impregnating glass fiber yarn into styrene-based polyester resin and then heating, curing and pultruding. It can also be called glass fiber sheet or glass fiber sheet. Two piezoelectric ceramic sheets respectively arranged on both sides of the first substrate 31 constitute the first piezoelectric ceramic part. Two piezoelectric ceramic sheets respectively arranged on both sides of the second substrate constitute the second piezoelectric ceramic part.

[0043] In another embodiment, the plurality of first piezoelectric ceramic portions and the plurality of second piezoelectric ceramic portions are arranged at equal intervals.

[0044] The needle length is T, where T = needle bed unit length L / machine gauge E.

[0045] The unit length L of the needle bed is 25.4mm in English system and 30mm for the Z303 warp knitting machine.

[0046] Table 1, Relationship between machine gauge and needle length

[0047] Different models of three-station piezoelectric Jacquard 11, for example, E24, E22, E18, etc., the needle pitches of these types of Jacquard are: E24=1.058mm, E22=1.154mm, E18=1.811mm, their needle pitches are different, E24 means that there are 24 needles in 1 inch, 1 inch=25.4mm, so the needle pitch of E24=25.4 / 24=1.058mm; E22=25.4 / 22=1.155mm; E18=25.4 / 18=1.411mm.

[0048] Example 2, refer to Figure 1 , Figure 2 and Figure 3 The difference between the second embodiment and the first embodiment is that a part of the main body 16 is configured as the front part of the main body 16, the needle distance adjustment part 18 is stacked on the front part of the main body 16, and the outer shape of the needle distance adjustment part 18 is a convex shape.

[0049] The other structures are similar to those of the first embodiment and will not be described in detail here.

[0050] Example 3, refer to Figure 2 and Figure 3The difference between the third embodiment and the first embodiment is that the piezoelectric baffle structure 13 is replaceably mounted on the conductive connector 40 in the three-station piezoelectric jacquard 11. Preferably, the connector is a connector 40 of a jacquard drive 41. The jacquard drive 41 is detachably mounted on the rear portion of the base 10.

[0051] The other structures are similar to those of the first embodiment and will not be described in detail here.

[0052] Embodiment 4, referring to Figure 2 and Figure 3 The difference between the fourth embodiment and the first embodiment is that a second slot 22 is disposed on the other side of the main body 16 , and the opening portion of the second slot 22 is arranged toward one side of the corresponding front tooth 14 , so that a second gap 42 is left between the second slot 22 and the corresponding front tooth 14 .

[0053] The other structures are similar to those of the first embodiment and will not be described in detail here.

[0054] Example 5, refer to Figure 2 and Figure 3 The difference between the fifth embodiment and the first embodiment is that the piezoelectric baffle structure 13 can be replaced on the plug-in element in the three-station piezoelectric jacquard 11. The piezoelectric baffle structure 13 can be replaced on the plug-in element in the three-station piezoelectric jacquard 11 by plugging and unplugging. The specific connector 40 can be configured as a plug-in element.

[0055] The other structures are similar to those of the first embodiment and will not be described in detail here.

[0056] Example 6, refer to Figure 1 and Figure 2 The difference between the sixth embodiment and the first embodiment is that the main body 16 is composed of a first outer sheet 43 , an inner sheet 44 and a second outer sheet 45 , and the stitch length adjustment portion 18 is configured as an adjustment sheet 47 .

[0057] Reference Figure 1 The first outer sheet 43, the second outer sheet 45 and the inner sheet 44 together form a complete melon seed sheet structure.

[0058] Reference Figure 1 , the inner sheet 44 is connected to the first outer sheet 43 and the second outer sheet 45 to provide a cavity space for connecting the piezoelectric ceramic sheet 30 .

[0059] Reference Figure 1 The second outer piece 45 has a stopper portion 46 extending therefrom for mounting an adjusting piece 47 for positioning the yarn guide needle 12 .

[0060] Reference Figure 1, Adjusting piece 47: used to adjust the needle position spacing. When the needle spacing of the yarn guide needle 12 is different, the thickness of the adjusting piece 47 will change.

[0061] Reference Figure 1 , Figure 2 and Figure 3 The second outer piece 45 is structurally extended outward to provide a position for installing the adjusting piece 47, and the adjusting piece 47 is used to locate the spacing position of the yarn guide needle 12, and its shape matches the shape of the front teeth 14 of the bottom base 10.

[0062] Reference Figure 1 , Figure 2 and Figure 3 The inner sheet 44, the second outer sheet 45 and the first outer sheet 43 are welded to form a community, and the tail of the inner sheet 44 is shorter than the first outer sheet 43 and the second outer sheet 45, so that after the community is formed, a cavity 50 is formed at the tail of the community, and the piezoelectric ceramic sheet 30 is bonded together in the cavity.

[0063] Reference Figure 1 The thickness of the first outer sheet 43, the second outer sheet 45, the inner sheet 44 and the adjusting sheet 47 is generally between 0.1 and 1.5 mm and can be selected according to needs.

[0064] Reference Figure 1 , Figure 2 and Figure 3 The first outer sheet 43 and the second outer sheet 45 must have a stopper portion 46 on at least one side, and the position is not limited to Figure 1 As shown in , in another embodiment, the first outer sheet 43 may not be extended and the second outer sheet 45 may be extended. In another embodiment, both of them may be extended.

[0065] Reference Figure 1 , Figure 2 and Figure 3 The thickness of the adjusting sheet 47 is determined according to the needle spacing requirement. The needle spacing refers to the needle distance.

[0066] Reference Figure 1 , Figure 2 and Figure 3 The piezoelectric baffle structure 13 is formed by stacking a first outer sheet 43, an inner sheet 44, a second outer sheet 45, and an adjustment sheet 47 in sequence, and then pressed together by welding or gluing to form a whole, and then assembled with the piezoelectric ceramic sheet by gluing to form a whole.

[0067] Reference Figure 1 , Figure 2 and Figure 3In another embodiment, at least one of the sheets extends outwardly from the other sheets to form a stopper portion 46. The sheet may be one of the first outer sheet 43, the inner sheet 44, and the second outer sheet 45.

[0068] Reference Figure 1 At least one positioning circular hole 51 is provided on the first outer sheet 43, at least one positioning circular hole 52 is provided on the second outer sheet 45, and at least one positioning circular hole 53 is provided on the inner sheet 44. During the stacking process, the positioning circular holes (positioning circular hole 51, positioning circular hole 52, positioning circular hole 53) are used as a reference to align the positioning circular holes (positioning circular hole 51, positioning circular hole 52, positioning circular hole 53) with each other, so that the first outer sheet 43, the inner sheet 44, the second outer sheet 45 and the adjustment sheet 47 are more neat after being stacked together.

[0069] Reference Figure 1 In another embodiment, a stopper portion 46 is disposed on the front portion of the first outer plate 43 , and an adjusting plate 47 is disposed on the stopper portion 46 .

[0070] Reference Figure 1 In another embodiment, a stopper portion 46 is disposed on the front portion of the second outer plate 45 , and an adjusting plate 47 is disposed on the stopper portion 46 .

[0071] Reference Figure 1 In another embodiment, a stopper portion 46 is provided on the front portion of the inner plate 44 , and an adjusting plate 47 is provided on the stopper portion 46 .

[0072] Reference Figure 1 , Figure 2 and Figure 3 When the needle pitch of the yarn guide needle 12 is different, the thickness of the adjusting plate 47 will change. The different needle pitches here refer to different types of three-station piezoelectric jacquards 11, for example, E24, E22, E18, etc. The needle pitches of these types of jacquards are: E24=1.058mm, E22=1.154mm, E18=1.811mm, and their needle pitches are different.

[0073] Reference Figure 1 , Figure 2 and Figure 3,The following takes E24 as an example to explain why the adjustment piece 47 is added: When the yarn guide needle 12 is in the second station, the position of the second station must be measured from the middle vertical center line position of the yarn guide needle 12. The left gear is the front tooth 14 of the bottom base 10, which is fixed (for the convenience of explanation, it is directly based on the interval of 1.058mm, and this interval is determined according to the length of the yarn guide needle 12. Assume it is 1.058mm. First of all, if there is no adjustment piece 47, after removing the adjustment piece 47, the needle distance on the right side becomes obviously larger. Normally, the left and right sides are required to be the same, both 1.058mm, but because there is no adjustment piece 47 on the right side, the needle distance (1.058mm) cannot be achieved.

[0074] Reference Figure 2 and Figure 3 , the piezoelectric ceramic sheets 30 are arranged in an equidistant manner. When an equidistant is required, the outer sheet is first thickened to achieve equal spacing between the left and right sides. A comb holding end 23 is provided on the tail of the yarn guide needle 12. The width of the existing yarn guide needle 12 is smaller than the width of the comb holding end 23, which makes a part of the rear of the yarn guide needle 12 have a raised portion 21 due to the comb holding end 23, so that there is a first gap between the piezoelectric baffle structure 13 and the yarn guide needle 12. The raised portion 21 of the comb holding end 23 of the yarn guide needle 12 and one side of the piezoelectric baffle structure will interfere with each other in the second station. The yarn guide needle 12 may swing toward the direction of the first gap under the influence of the tension of the yarn, which leads to inaccurate needle spacing of the yarn guide needle 12.

[0075] Reference Figure 2 and Figure 3 When the yarn guide needle 12 and the piezoelectric baffle structure 13 are close together at the middle station, the second station is not blocked yet, which will cause the position of the second station to be inaccurate. So in order to solve this problem, the rear part of the thickest baffle is removed and only the front part is retained, which can solve the interference problem. After cutting off the excess part, it becomes a shape that is thick in the front and thin in the back, with a step in the front. If this structure is a single piece, that is, thick in the front and thin in the back, it will require additional processing (it cannot be formed as one piece). This processing will greatly increase the cost, so the front step is separated, which is the origin of the adjustment piece 47. The step can be in a convex shape.

[0076] Reference Figure 1 , Figure 2 and Figure 3When the needle distance is a fixed value, such as E24=1.058mm, the thickness of the adjustment plate 47 is also fixed when the other dimensions of the bottom base 10 are fixed. Once there is an adjustment, the thickness of the adjustment plate 47 also needs to be adjusted to ensure that the needle distances on the left and right are equal. There is a small second gap 42 between the right side of the piezoelectric baffle structure 13 and the bottom base 10. This second gap 42 is to allow the second piezoelectric ceramic plate to swing slightly to the right, which can improve the stress condition of the second ceramic plate. If this second gap 42 becomes larger or smaller, the thickness of the adjustment plate 47 must also become larger or smaller.

[0077] Reference Figure 1 , Figure 2 and Figure 3 ,When the model of the three-station piezoelectric jacquard 11 is different, for example, E18=1.411mm, the thickness of the adjusting sheet 47 can be different from E24=1.058mm.

[0078] Reference Figure 1 , Figure 2 and Figure 3 In another embodiment, the entire piezoelectric baffle structure 13 is composed of four parts, and its thickness will affect the processing size of the front teeth 14 of the three-station piezoelectric jacquard 10. Different models of three-station piezoelectric jacquard 10 only need to adjust the adjustment plate 47 to keep the other three plates (the first outer plate 43, the second outer plate 45, and the inner plate 44) consistent in thickness and not affected by the needle distance.

[0079] The other structures are similar to those of the first embodiment and will not be described in detail here.

[0080] Embodiment 7, refer to Figure 2 The difference between the seventh embodiment and the first embodiment is that the workstation piezoelectric jacquard 11 can be used in a textile machine, and the textile machine can be a warp knitting machine, for example, the warp knitting machine is a single needle bed warp knitting machine, a double needle bed warp knitting machine, a Raschel warp knitting machine or a Tricot warp knitting machine.

[0081] Reference Figure 2 , Figure 3 , Figure 4 and Figure 5 The three-station piezoelectric jacquard 11 has a torque regulator 61, a limiting portion 62, at least one base 10, a plurality of yarn guide needles 12 spaced apart on the base 10, a plurality of piezoelectric baffle structures 13 spaced apart on the base 10, and a plurality of front teeth 14 spaced apart on the front of the base 10. The lower portion of the piezoelectric baffle structure 13 extends into a limiting space 15 between two front teeth 14 assigned to the piezoelectric baffle structure 13, and each yarn guide needle 12 is equipped with at least one piezoelectric baffle structure 13 and at least one front tooth 14.

[0082] Reference Figure 4 and Figure 5 A plurality of front teeth 14 are arranged at intervals on the front portion of the base 10 , and a first station, a second station and a third station are arranged between every two front teeth 14 .

[0083] Reference Figure 4 and Figure 5 A plurality of limiting portions 62 are arranged at intervals on the front portion of the bottom base 10 , a limiting portion 62 is adaptively arranged between every two front teeth 14 , a second station is arranged on the limiting portion 62 , and the second station is arranged at an intermediate position between the first station and the third station.

[0084] Reference Figure 4 and Figure 5 The yarn guide needle 12 switches positions among the first station, the second station and the third station respectively.

[0085] Reference Figure 4 and Figure 5 The piezoelectric baffle structure 13 is set at a switching position between the second station and the third station, and the piezoelectric baffle structure 13 is used to drive the corresponding yarn guide needle 12 to switch to the second station. The first station is one needle distance away from the second station, and the second station is one needle distance away from the third station.

[0086] Reference Figure 4 and Figure 5 Another part of the piezoelectric baffle structure 13 can be detachably adsorbed on another part of the torque regulator 61. When the piezoelectric baffle structure 13 is switched to the second working position, another part of the piezoelectric baffle structure 13 is connected to another part of the torque regulator 61, thereby increasing the torque of the piezoelectric baffle structure 13.

[0087] Reference Figure 4 and Figure 5 When the piezoelectric baffle structure 13 switches to the third position, the piezoelectric baffle structure 13 switches its position toward a side away from the limiting portion 62 and the torque regulator 61 .

[0088] Reference Figure 4 and Figure 5 A portion of the torque regulator 61 is arranged in a portion of the limiting portion 62, and another portion of the torque regulator 61 is exposed on a side surface of the limiting portion 62 facing the piezoelectric baffle structure 13, and a portion of the piezoelectric baffle structure 13 abuts against a side surface of the limiting portion 62 facing the piezoelectric baffle structure 13.

[0089] Reference Figure 4 and Figure 5 When the piezoelectric baffle structure 13 switches to the second position, another part of the piezoelectric baffle structure 13 is adsorbed on another part of the torque regulator 61 .

[0090] Reference Figure 4 and Figure 5 By setting a torque regulator 61, a part of the torque regulator 61 is set in a part of the limit portion 62, and the other part of the torque regulator 61 is exposed on the side surface of the limit portion 62 facing the piezoelectric baffle structure 13, so that when the piezoelectric baffle structure 13 is switched to the second working position, the other part of the piezoelectric baffle structure 13 is connected with the other part of the torque regulator 61 as a whole, thereby enhancing the torque of the piezoelectric baffle structure 13 in the second working position.

[0091] Reference Figure 4 and Figure 5 , the torque regulator 61 has at least one magnetic unit, and the piezoelectric baffle structure 13 is provided with at least one contact portion adapted to the magnetic unit. When the piezoelectric baffle structure 13 switches to the second station, the contact portion is adsorbed by the magnetic unit on the side of the limit portion 62 facing the second station, and the suction force of the magnetic unit is less than the torque when the piezoelectric baffle structure 13 switches from the second station to the third station. The magnetic unit can be configured as a permanent magnet, a magnet, an electromagnet or an electromagnet. The permanent magnet, the magnet, the electromagnet can be set to one of a cylindrical shape, a long strip, a polygon or a square. In this embodiment, the specific contact portion can be configured on the side surface of the needle distance adjustment portion 18 facing the contact portion.

[0092] Reference Figure 4 and Figure 5 An assembly groove 63 is arranged in the limiting portion 62, a part of the assembly groove 63 extends to the inner side of the limiting portion 62, an opening on one end of the assembly groove 63 is arranged on a side surface of the limiting portion 62 facing the piezoelectric baffle structure 13, a part of the magnetic unit is fixedly arranged in the assembly groove 63, and another part of the magnetic unit is arranged on the opening 64, and when the piezoelectric baffle structure 13 is switched to the second position, at least a part of the contact portion covers the opening 64.

[0093] Reference Figure 4 and Figure 5 In another embodiment, the first workstation can be configured as a left workstation, the second workstation can be configured as a middle workstation, and the third workstation can be configured as a right workstation.

[0094] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The piezoelectric baffle structure 13 is made of a magnetic material, a metal material that can be adsorbed by a magnetic material, or a stainless steel material.

[0095] Reference Figure 4 and Figure 5The other part of the magnetic unit and the opening 64 are flush with the surface of the limiting portion 62 facing the piezoelectric baffle structure 13 .

[0096] Reference Figure 4 and Figure 5 The assembly groove 63 is configured as a long slot, and an opening portion of the slot extends to the lower surface of the base 10.

[0097] The other structures are similar to those of the first embodiment and will not be described in detail here.

[0098] The above is only a specific implementation method of the utility model, but the design concept of the utility model is not limited to this. Any non-substantial changes to the utility model using this concept shall be deemed as an infringement of the protection scope of the utility model.

Claims

1. The piezoelectric baffle structure of the three-station piezoelectric jacquard is characterized by: include: Main body; A piezoelectric bending brake is used to drive the main body to swing back and forth. The front part of the piezoelectric bending brake is connected to the rear part of the main body. When the power connection end of the piezoelectric bending brake is energized, the piezoelectric ceramic piece of the piezoelectric bending brake drives the main body to swing. as well as A needle distance adjustment portion, arranged on a part of the main body; Among them, when the piezoelectric baffle structure is used to drive the corresponding yarn guide needle in the three-position piezoelectric Jaccanada to switch to the middle position, a part of the needle distance adjustment part abuts against at least a part of the yarn guide needle, and another part of the needle distance adjustment part is arranged between the main body and the yarn guide needle, thereby maintaining the needle distance of the yarn guide needle.

2. The piezoelectric baffle structure of the three-station piezoelectric jacquard as claimed in claim 1, characterized in that: A first groove is provided on one side surface of the main body. When the corresponding guide needle in the three-position piezoelectric jacquard is switched to the middle position, the raised portion of the comb bar holding end on the tail of the guide needle is adaptively accommodated in the first groove. The depth of the first groove is greater than or equal to the thickness of the raised portion of the comb bar holding end.

3. The piezoelectric baffle structure of the three-station piezoelectric jacquard as claimed in claim 2, characterized in that: A second slot is disposed on the other side surface of the main body, and the second slot is arranged opposite to the needle distance adjustment portion.

4. The piezoelectric baffle structure of the three-station piezoelectric jacquard as claimed in claim 3, characterized in that: The main body, the first slot, the needle pitch adjustment portion and the second slot are connected as a whole. When the piezoelectric baffle structure is configured in the three-position piezoelectric jacquard, the opening portion of the first slot is arranged in the direction of the holding end of the comb bar, the needle pitch adjustment portion is arranged in the direction of the main body toward the yarn guide needle, and the second slot is arranged in the direction of the main body toward the side of the front teeth of the three-position piezoelectric jacquard.

5. The piezoelectric baffle structure of the three-station piezoelectric jacquard as claimed in claim 1, characterized in that: A portion of the main body is configured as the front portion of the main body, the needle distance adjusting portion is stacked on the front portion of the main body, and the outer shape of the needle distance adjusting portion is a convex shape.

6. The piezoelectric baffle structure of the three-station piezoelectric jacquard as claimed in claim 1, characterized in that: The needle distance is T, where T=needle bed unit length L / machine gauge E.

7. The piezoelectric baffle structure of the three-station piezoelectric jacquard as claimed in claim 1, characterized in that: The main body has a first outer sheet, an inner sheet and a second outer sheet, the needle distance adjustment portion is configured as an adjustment sheet, the first outer sheet is provided with at least one positioning circular hole, the second outer sheet is provided with at least one positioning circular hole, the inner sheet is provided with at least one positioning circular hole, the first outer sheet, the inner sheet, the second outer sheet and the adjustment sheet are stacked together to form a whole, and during the stacking process, the positioning circular holes are used as a reference to align the positioning circular holes with each other.

8. The piezoelectric baffle structure of the three-station piezoelectric jacquard as claimed in claim 1, characterized in that: The thickness of the needle distance adjusting part is 0.1-0.15 mm.

9. The piezoelectric baffle structure of the three-station piezoelectric jacquard as claimed in claim 1, characterized in that: The piezoelectric baffle structure can be replaceably mounted on a conductive connector within the three-station piezoelectric jacquard.

10. Three-station piezoelectric jacquard, characterized in that: The three-station piezoelectric jacquard has a yarn guide needle and a piezoelectric baffle structure, wherein the yarn guide needle has a left station, a middle station and a right station, and the piezoelectric baffle structure is used to drive the corresponding yarn guide needle to switch to the middle station, and the piezoelectric baffle structure is the piezoelectric baffle structure of any one of claims 1-9.

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