A base for a guide bar and a piezoelectric jacquard device having the same
By setting a second mounting groove on the comb base to install a longer piezoelectric ceramic element, the problem of the inability to achieve intermediate station state switching in the three-station Jacquard in the prior art is solved, thereby improving the stability and pattern diversity of the yarn guide needle.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- FUJIAN ZAYKA SCI & TECH LTD
- Filing Date
- 2023-04-12
- Publication Date
- 2026-05-22
Smart Images
Figure CN117822193B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of warp knitting machines, and in particular to a comb base and a piezoelectric jacquard device having the comb base. Background Technology
[0002] With the advancement of technology, the floral pattern making process has made new breakthroughs. These breakthroughs have placed new demands on jacquard. Unlike conventional jacquard, the new process requires jacquard to have three working states. In addition to the two working states of conventional jacquard, an additional intermediate working state is required, hence the name three-working-state jacquard.
[0003] Existing comb bases are all suitable for two-station piezoelectric jacquard devices. Currently, if a stop is to be installed to stop the yarn guide needle at the middle station, an actuator is needed to switch the stop between the second and third stations. If an additional layer of piezoelectric ceramic sheet can be added to the piezoelectric jacquard device, the stop can be easily switched between the second and third stations after the piezoelectric ceramic sheet is energized.
[0004] However, the existing comb base can only accommodate one layer of piezoelectric ceramic sheet to drive the guide needle to swing left and right. There is no extra mounting slot to install a second layer of piezoelectric ceramic sheet to drive the stop to restrict the guide needle to stop at the second or third station respectively. Summary of the Invention
[0005] The present invention provides a comb base and a piezoelectric jacquard device having the comb base, the main purpose of which is to overcome the defect that existing comb bases cannot install double-layer piezoelectric ceramic elements.
[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:
[0007] A comb base and a piezoelectric Jacquard device having the comb base are disclosed. The piezoelectric Jacquard device includes a fixing part having at least one comb base and at least one actuating part. The actuating part includes a plurality of piezoelectric Jacquard elements with yarn guide needles and a plurality of second piezoelectric ceramic elements with stops. The piezoelectric Jacquard elements are mounted on a part of the comb base, and the second piezoelectric ceramic elements are mounted on another part of the comb base. When the torque of the second piezoelectric ceramic element is greater than the torque of the piezoelectric Jacquard element, the stops push the yarn guide needles to a position between the first and last needles. The comb base, which stops oscillating, includes a base and a plurality of first mounting slots arranged on the base. The piezoelectric Jacquard device has a plurality of piezoelectric Jacquard elements and a plurality of second piezoelectric ceramic elements. The comb base also includes a plurality of second mounting slots arranged on the base. The first mounting slots are used to install the corresponding piezoelectric Jacquard elements, and the second mounting slots are used to install the corresponding second piezoelectric ceramic elements. The second mounting slots are located on the side away from the first mounting slots, and the length of the second piezoelectric ceramic element is greater than the length of the piezoelectric Jacquard element.
[0008] Compared with the prior art, the beneficial effects of the present invention are as follows:
[0009] This invention has a simple structure and strong practicality. By setting the second mounting groove to be located on the side away from the first mounting groove, it can accommodate the installation of a longer second piezoelectric ceramic element, so that the length of the second piezoelectric ceramic element is greater than the length of the piezoelectric Jacquard element. This achieves the effect that the torque of the second piezoelectric ceramic element is greater than that of the piezoelectric Jacquard element, so that the second mounting groove and the first mounting groove provide an effective support point for the second piezoelectric ceramic element and the piezoelectric Jacquard element, respectively. Attached Figure Description
[0010] Figure 1 This is a schematic diagram of the comb base structure.
[0011] Figure 2 This is an exploded view of a piezoelectric jacquard device.
[0012] Figure 3 This is a schematic diagram of a piezoelectric jacquard device.
[0013] Figure 4 This is a schematic diagram of the tooth groove structure.
[0014] Figure 5 This is an exploded view of Example 4.
[0015] Figure 6 This is a schematic diagram of the structure of Example 4.
[0016] Figure 7 This is a schematic diagram of the structure of Example 9. Detailed Implementation
[0017] The specific embodiments of the present invention will now be described with reference to the accompanying drawings.
[0018] Example 1, refer to Figure 1 , Figure 2 and Figure 3 A comb base 4 and a piezoelectric jacquard device having the comb base 4 are disclosed. The comb base 4 is used in the piezoelectric jacquard device, which includes a fixing part 5 having at least one comb base 4 and an actuating part 1.
[0019] Reference Figure 1 , Figure 2 and Figure 3 The actuator 1 includes a plurality of piezoelectric Jacquard elements 6 with yarn guide needles 17 and a plurality of second piezoelectric ceramic elements 7 with stops 9.
[0020] Reference Figure 1 , Figure 2 and Figure 3 The comb base 4 includes a base 110 and a plurality of first mounting grooves 10 arranged on the base 110. The comb base 4 also includes a plurality of second mounting grooves 11 arranged on the base 110.
[0021] Reference Figure 2 and Figure 3 The piezoelectric Jacquard device has multiple piezoelectric Jacquard elements 6 and multiple second piezoelectric ceramic elements 7. The first mounting groove 10 is used to install the corresponding piezoelectric Jacquard element 6, and the second mounting groove 11 is used to install the corresponding second piezoelectric ceramic element 7. The second mounting groove 11 is located on the side away from the first mounting groove 10, and the length of the second piezoelectric ceramic element 7 is greater than the length of the piezoelectric Jacquard element 6.
[0022] Reference Figure 2 and Figure 3 By setting the second mounting groove 11 to be located on the side away from the first mounting groove 10, a longer second piezoelectric ceramic element 7 can be installed, so that the length of the second piezoelectric ceramic element 7 is greater than the length of the piezoelectric Jacquard element 6, so that the torque of the second piezoelectric ceramic element 7 is greater than the torque of the piezoelectric Jacquard element 6, and the second mounting groove 11 and the first mounting groove 10 provide an effective support point for the second piezoelectric ceramic element 7 and the piezoelectric Jacquard element 6 respectively.
[0023] Reference Figure 2 and Figure 3The piezoelectric Jacquard element 6 includes a first substrate, first piezoelectric ceramic sheets 14 wrapped on the left and right sides of the first substrate, two first electrical terminals 16 disposed on the tail of the first substrate, a comb holding end 15 disposed on the front of the first substrate, and a yarn guide needle 17 disposed on the front of the comb holding end 15. The first electrical terminals 16 are electrically connected to the first piezoelectric ceramic sheets 14. When the first electrical terminals 16 are energized, an electrical signal is applied to the first piezoelectric ceramic sheets 14 to make the first piezoelectric ceramic sheets 14 swing left and right, thereby driving the yarn guide needle 17 to swing left and right.
[0024] Reference Figure 2 and Figure 3 The second piezoelectric ceramic element 7 includes a second substrate, second piezoelectric ceramic sheets 13 wrapped on the left and right sides of the second substrate, two second electrical terminals 33 disposed on the tail of the second substrate, and a stop block 9 disposed on the front of the second substrate. The second electrical terminals 33 are electrically connected to the second piezoelectric ceramic sheets 13. When the second electrical terminals 33 are energized, an electrical signal is applied to the second piezoelectric ceramic sheets 13 to make the second piezoelectric ceramic sheets 13 swing left and right, thereby driving the stop block 9 to swing left and right.
[0025] Reference Figure 2 and Figure 3 In this embodiment, the length of the second piezoelectric ceramic sheet 13 is set to be greater than the length of the first piezoelectric ceramic sheet 14, so that the torque of the second piezoelectric ceramic element 7 is greater than the torque of the piezoelectric Jacquard element 6.
[0026] Reference Figure 2 and Figure 3 The piezoelectric Jacquard element 6 is installed on one part of the comb base 4, and the second piezoelectric ceramic element 7 is installed on the other part of the comb base 4. When the torque of the second piezoelectric ceramic element 7 is greater than the torque of the piezoelectric Jacquard element 6, the stop block 9 pushes the guide needle 17 to stop swinging between the first and last needles.
[0027] Reference Figure 3 and Figure 4 The swing range of the yarn guide needle 17 includes a first station 20 located at the first needle position of the yarn guide needle 17, a third station 22 located at the tail needle position of the yarn guide needle 17, and a second station 21, with the second station 21 located in the middle position between the first station 20 and the third station 22.
[0028] Reference Figure 3 and Figure 4 The second piezoelectric ceramic element 7 drives the stop block 9 to switch between the second station 21 and the third station 22 by oscillating, so that the yarn guide needle 17 stops oscillating at the position of the second station 21 or the third station 22.
[0029] in, Figure 4 The diagram shows that the guide needle 17 is at the second working position 21.
[0030] Example 2, refer to Figure 4 The difference between this embodiment 2 and embodiment 1 is that it further includes a plurality of toothed grooves 23 disposed on the front of the base 110. Each toothed groove 23 includes at least one toothed groove body 231, at least one plane 50 disposed on the left side of the toothed groove body 231, at least one first groove 232 disposed on the right side of the toothed groove body 231, and at least one second groove 233 disposed on the right side of the toothed groove body 231. One side of the first groove 232 is a first station 20. The other side of the first groove 232 is connected to the other side of the second groove 233 to form a third station 22. One side of the second groove 233 is connected to the inside of the first groove 232 to form a second station 21. The width of the first groove 232 is two stitch pitches, and the width of the second groove 233 is one stitch pitch. The second station 21 is located in the middle position between the first station 20 and the third station 22.
[0031] Reference Figure 4 By connecting the other side of the first groove 232 with the other side of the second groove 233 to form a third station 22, it is easier to process and form the third station 22, and the processing difficulty of the third station 22 is reduced.
[0032] Reference Figure 4 By setting one side of the second groove 233 to connect with the first groove 232 to form a second work station 21, it is easier to process and form the second work station 21, and the processing difficulty of the second work station 21 is reduced.
[0033] Reference Figure 4 The tooth groove body 231 has a stepped shape.
[0034] Reference Figure 4 By setting the tooth groove body 231 to be stepped, on the one hand, its stepped shape is easy to process, reducing the processing difficulty of the second station 21; on the other hand, the stepped shape effectively positions the first station 20 and the second station 21, achieving two goals at once.
[0035] The working principle of the piezoelectric Jacquard device in this embodiment to achieve three working positions is as follows:
[0036] The swing amplitude of a two-station piezoelectric Jacquard device is one slotted needle position, while the swing amplitude of a three-station piezoelectric Jacquard device is two slotted needle positions (two needle pitches) due to the addition of a station. That is, without lateral movement, its swing amplitude is two slotted needle positions (two needle pitches).
[0037] Reference Figure 4 The three-station piezoelectric jacquard device refers to the yarn guide needle 17, which, in addition to swinging left and right, must be able to accurately stop at the middle position (see figure, i.e., the second station 21 position).
[0038] Reference Figure 4 The dual-station piezoelectric jacquard device can only swing left and right, and its stopping position is fixed and accurate. This fixed and accurate position is achieved because after the grooves 23 of the base 110 are slotted according to calculated data, the guide needle 17 will stop on the tooth wall when swinging left or right. Since the spacing of the tooth walls is calculated, as long as the tooth wall spacing is correct, the needle position is correct. The piezoelectric ceramic sheet generates a swinging torque after charging. A complete piezoelectric ceramic sheet capable of swinging left and right is composed of two individual piezoelectric ceramic sheets bonded to a glass fiber sheet. Each individual piezoelectric ceramic sheet is responsible for one swing direction; that is, when one sheet is charged and the other is discharged, the correct swinging torque is generated, causing the piezoelectric ceramic sheet to swing left or right. This is the basic swinging principle of the piezoelectric ceramic sheet.
[0039] Reference Figure 4 As long as a large enough torque is generated, the guide needle 17 will be pressed tightly against the wall of one side of the tooth groove 23 under the drive of the first piezoelectric ceramic plate 14, and will not be deflected by the yarn, so it can pass through the center of the two groove needles accurately.
[0040] Reference Figure 4 The width of the second groove 233 is the width of one stitch pitch, and the width of the first groove 232 is the width of two stitch pitches. There is a second limiting part between the second groove 233 and the first groove 232. The shape of the second limiting part can be a stepped shape.
[0041] Reference Figure 4 The first piezoelectric ceramic sheet 14 drives the yarn guide needle 17 to swing in the first groove 232. The position of the yarn guide needle 17 is higher than that of the second limiting part, so it is not affected by the second limiting part. Since the width of the first groove 232 is the width of two needle pitches, the first piezoelectric ceramic sheet 14 drives the yarn guide needle 17 to swing in the first groove 232 to a position of two needle pitches.
[0042] Reference Figure 4 After the second piezoelectric ceramic sheet 13 is installed, when the stop block 9 at the front end of the second piezoelectric ceramic sheet 13 is running, since the bottom of the stop block 9 is lower than the second limiting part and falls into the second groove 233, the stop block 9 will be blocked by the second limiting part and the third limiting part when it swings. Therefore, the upper part of the stop block 9 is restricted to swinging left and right only in the first groove 232. Since the first groove 232 is set to a width of two needle pitches, the stop block 9 can swing left and right for one needle pitch position in the first groove 232 due to the obstruction of the second limiting part. Since the second limiting part limits the stop block 9, the stop block 9 can only swing between the second limiting part and the third limiting part.
[0043] Reference Figure 4 and Figure 6The second piezoelectric ceramic sheet 13 is made longer in order to increase the torque of the second piezoelectric ceramic sheet 13. Due to the need to realize three stations, the torque of the second piezoelectric ceramic sheet 13 is greater than that of the first piezoelectric ceramic sheet 14.
[0044] The following explains how the three-station piezoelectric jacquard device switches between the three stations, describing the process separately for left, center, and right:
[0045] Reference Figure 4 When the guide needle 17 is on the left (first station 20): the drive circuit controls the first piezoelectric ceramic plate 14 to swing to the left, and the needle position is at the leftmost position (first station 20). At this time, the position of the stop block 9 can be anywhere and has no effect on the current leftmost needle position (first station 20).
[0046] Reference Figure 4 When the guide needle 17 is in the middle (second station 21): the drive circuit controls the second piezoelectric ceramic plate 13 to make the stop block 9 swing to the left, and at the same time, controls the guide needle 17 to swing to the right. At this time, the stop block 9 will be blocked by the second limiting part. Since the torque of the stop block 9 is greater than that of the guide needle 17, the guide needle 17 will press tightly on the stop block 9, but will not push the stop block 9 away and cause needle deviation. So the final result is that the stop block 9 stops after being blocked by the second limiting part, and the guide needle 17 presses on the stop block 9. Since the position of the stop block 9 when it stops against the side of the second limiting part is exactly one needle pitch (i.e., the position of the second station 21), it is equivalent to the guide needle 17 being in the middle station (i.e., the position of the second station 21).
[0047] Reference Figure 4 When the yarn guide needle 17 is on the right (third station 22): the drive circuit controls the first piezoelectric ceramic plate 14 to swing to the left, causing the yarn guide needle 17 to swing to the right. At the same time, it controls the stop block 9 in front of the second piezoelectric ceramic plate 13 to swing to the right. The yarn guide needle 17 is in the right position and presses on the stop block 9. Since the width is preset during the initial milling of the tooth groove 23, the position of the yarn guide needle 17 pressing on the stop block 9, including the thickness of the stop block 9, is exactly two needle pitches. Therefore, the yarn guide needle 17 will be in the rightmost position (third station 22).
[0048] Example 3, referring to Figure 2 The difference between this third embodiment and the first embodiment is that when the first mounting groove 10 is detachably provided on the base 110, the second mounting groove 11 is integrally cast with the base 110 to form a whole.
[0049] Reference Figure 2By setting the first mounting slot 10 to be detachably mounted on the base 110, it is convenient for the installation and subsequent maintenance and replacement of the corresponding piezoelectric Jacquard element 6 on the first mounting slot 10, and also convenient for the subsequent maintenance and replacement of the second piezoelectric Jacquard element 6 on the second mounting slot 11, achieving the effect of killing two birds with one stone.
[0050] Reference Figure 2 In this embodiment, the piezoelectric Jacquard element 6 is stacked on top of the second piezoelectric ceramic element 7, that is, the first piezoelectric ceramic sheet 14 is stacked on top of the second piezoelectric ceramic sheet 13.
[0051] Reference Figure 2 and Figure 3 The stop block 9 extends into the corresponding tooth groove 23, and the guide needle 17 swings between the corresponding tooth groove 23 and the corresponding stop block 9.
[0052] Reference Figure 2 , Figure 3 and Figure 4 By setting the second piezoelectric ceramic sheet 13 in a stack below the piezoelectric Jacquard element 6, on the one hand, the second piezoelectric ceramic sheet 13 can be installed closer to the base 110, so that the stop block 9 extends more closely into the corresponding tooth groove 23, thereby improving the limiting effect of the stop block 9 on the guide needle 17. On the other hand, the second piezoelectric ceramic sheet 13 drives the stop block 9 to move within the tooth groove 23 to increase the number of work positions of the guide needle 17, achieving a dual effect.
[0053] Example 4, refer to Figure 5 and Figure 6 The difference between this fourth embodiment and the first embodiment is that when the second mounting groove 11 is detachably provided on the base 110, the first mounting groove 10 and the base 110 are integrally cast to form a whole.
[0054] Reference Figure 5 and Figure 6 The second mounting slot 11 can be detachably mounted on the base 110, which facilitates the installation and subsequent maintenance and replacement of the corresponding second piezoelectric ceramic element 7 on the second mounting slot 11. It also facilitates the subsequent maintenance and replacement of the piezoelectric Jacquard element 6 on the first mounting slot 10, achieving a dual benefit.
[0055] Reference Figure 5 and Figure 6 In this embodiment, the second piezoelectric ceramic element 7 is stacked on top of the piezoelectric Jacquard element 6, that is, the second piezoelectric ceramic sheet 13 is stacked on top of the first piezoelectric ceramic sheet 14.
[0056] Reference Figure 4 and Figure 6The stop block 9 extends into the space between the two toothed grooves 23. The stop block 9 is used to prevent a part of the guide needle 17 from moving in the direction of movement. When a part of the guide needle 17 comes into contact with the stop block 9 in a swinging manner, the needle position of the guide needle 17 is restricted to one side of the stop block 9 and stops swinging.
[0057] Reference Figure 4 A portion of the toothed groove 23 is used to block a portion of the yarn guide needle 17 from oscillating at the first station 20, and another portion of the toothed groove 23 is used to block a portion of the corresponding stop block 9 from oscillating at the third station 22. The other portion of the corresponding stop block 9 is used to block another portion of the yarn guide needle 17 from oscillating at the second station 21.
[0058] Reference Figure 4 By setting a second piezoelectric ceramic element 7 stacked above the piezoelectric Jacquard element 6, and the stop block 9 extending into the space between the two toothed grooves 23 (the space between the second station 21 and the third station 22), on the one hand, without affecting the swing of the existing piezoelectric Jacquard element 6, the installation of the second piezoelectric ceramic element 7 drives the stop block 9 to swing, thereby not affecting the jacquard yarn guiding of the original two stations (the first station 20 and the third station 22) of the yarn guide needle 17, and maintaining the stability of the original swing of the yarn guide needle 17. On the other hand, the stop block 9 blocks the corresponding yarn guide needle 17, so that the yarn guide needle 17 stops swinging at the preset position of the stop block 9, thereby achieving the effect of increasing the number of stations of the yarn guide needle 17, which achieves two benefits at once.
[0059] Reference Figure 4 Each pair of adjacent toothed grooves 23 surrounds a cavity for accommodating the corresponding yarn guide needle 17 and the corresponding stop block 9, respectively. The left side of the cavity is the first station 20, the right side of the cavity is the third station 22, and the middle position of the cavity is the second station 21. The distance between the second station 21 and the third station 22 is one needle pitch. The stop block 9 switches between the second station 21 and the third station 22 in a swinging manner. When the stop block 9 stops swinging at the second station 21, the stop block 9 prevents the corresponding yarn guide needle 17 from stopping swinging at the corresponding second station 21. When the stop block 9 stops at the third station 22, the stop block 9 prevents the corresponding yarn guide needle 17 from stopping swinging at the corresponding third station 22.
[0060] Reference Figure 4 By setting the stop block 9 to switch back and forth between the second station 21 and the third station 22, the needle position limiter can switch between the two-station and three-station as needed, thereby increasing the applicability of the jacquard yarn guide and increasing the number of jacquard patterns.
[0061] Reference Figure 4In this embodiment, the width of the guide needle 17 along the moving direction is greater than the width of the stop block 9 along the moving direction. The stop blocks 9 are arranged laterally and offset from the moving direction within the movement space of the guide needle 17. Each stop block 9 is held on a part of the tooth groove 23 at at least two different positions.
[0062] Other structures are similar to those in Embodiment 1, and will not be described in detail here.
[0063] Example 5, refer to Figure 5 and Figure 6 The difference between this fifth embodiment and the first embodiment is that it also includes at least one mounting part 31 disposed between the first mounting groove 10 and the second mounting groove 11. When the second piezoelectric ceramic element 7 is stacked on top of the piezoelectric Jacquard element 6, the mounting part 31 is used to install a power supply device for supplying power to the piezoelectric Jacquard element 6. When the piezoelectric Jacquard element 6 is stacked on top of the second piezoelectric ceramic element 7, the mounting part 31 is used to accommodate a part of the second piezoelectric ceramic element 7.
[0064] Reference Figure 5 and Figure 6 By setting the mounting part 31, the space between the first mounting groove 10 and the second mounting groove 11 is effectively utilized. On the one hand, when the second piezoelectric ceramic element 7 is stacked on top of the piezoelectric Jacquard element 6, the mounting part 31 is used to install the power supply device for supplying power to the piezoelectric Jacquard element 6, so that the power supply cable or printed circuit board can be led out through the mounting part 31. On the other hand, when the piezoelectric Jacquard element 6 is stacked on top of the second piezoelectric ceramic element 7, the mounting part 31 is used to accommodate a part of the second piezoelectric ceramic element 7, which achieves two benefits at once.
[0065] Reference Figure 5 and Figure 6 The power supply device (not shown in the figure) includes a first connector detachably mounted on the base 110, a first cable at least partially disposed within the first connector, a second connector detachably mounted on the base 110, and a second cable at least partially disposed within the second connector. The output end of the first cable is electrically connected to the first terminal 16, and the input end of the first cable is electrically connected to an external drive circuit board. The drive circuit board is provided with a drive circuit that can drive the first piezoelectric ceramic plate 14 to swing. The output end of the second cable is electrically connected to the second terminal 33, and the input end of the second cable is electrically connected to an external drive circuit board. The drive circuit board is provided with a drive circuit that can drive the second piezoelectric ceramic plate 13 to swing.
[0066] The piezoelectric ceramic plate (first piezoelectric ceramic plate 14) used at stop 9 has a torque that is greater than that of the piezoelectric ceramic plate (second piezoelectric ceramic plate 13) of the yarn guide needle, and at least twice as great. The reason is as follows: When the piezoelectric ceramic plate of the yarn guide needle is confined to the intermediate position, it is not without torque. If it had no torque, it would be pulled by the yarn, causing the needle position to shift. Therefore, when the piezoelectric ceramic plate of the yarn guide needle is in the intermediate position, it will have a torque, which causes the needle tip to press against stop 9. Let's assume the torque is 10 grams. At this time, if the torque of the piezoelectric ceramic plate with stop 9 is also 10 grams, then, since the two are in opposite directions, their torques will cancel each other out. Under the pull of the yarn, it will move towards stop 9 (needle tip torque + yarn tension > 10 grams). As a result, stop 9 cannot be fixed in position, which will also cause the needle position to shift. At this point, if the torque of stop 9 is relatively large (at least twice that of the needle), the needle will not experience needle position deviation in either direction, thus ensuring the needle position remains stable in the middle position. Therefore, the piezoelectric ceramic plate of stop 9 is longer than that of the yarn guide needle for this reason; a longer piezoelectric ceramic plate results in a larger torque.
[0067] Other structures are similar to those in Embodiment 1, and will not be described in detail here.
[0068] Example 6, refer to Figure 1 The difference between this sixth embodiment and the first embodiment is that the base 110, the first mounting groove 10 and the second mounting groove 11 are connected as one unit to form a stepped whole.
[0069] Reference Figure 1 and Figure 3 By setting the base 110, the first mounting groove 10 and the second mounting groove 11 to be connected as a whole, a stepped whole is formed, so that the installed piezoelectric Jacquard element 6 and the second piezoelectric ceramic element 7 are divided into upper and lower layers, so that they do not interfere with each other during the swinging process.
[0070] Other structures are similar to those in Embodiment 1, and will not be described in detail here.
[0071] Example 7, referring to Figure 4 The difference between this embodiment three and embodiment one is that the piezoelectric jacquard device also includes a jacquard driver (not shown in the figure). The jacquard driver has at least one drive circuit board. A part of the jacquard driver is detachably mounted on the base 110. The output end of the jacquard driver is electrically connected to each piezoelectric ceramic sheet. It can be connected by multiple wires or connectors to form a wireless piezoelectric jacquard device.
[0072] The drive circuit structure on the drive circuit board can refer to the drive circuit structure disclosed in Chinese Utility Model Patent (Application No.: 202123378011.8, Publication No.: CN218124570U) or Chinese Utility Model Patent (Application No.: 202121926084.3, Publication No.: CN217486404U), or other drive circuit structures in the field used to drive the piezoelectric ceramic sheet to swing can also be applied.
[0073] Other structures are similar to those in Embodiment 1, and will not be described in detail here.
[0074] Example 8, refer to Figure 2 and Figure 3 The difference between this embodiment eight and embodiment one is that the first mounting groove includes a connector and at least two first assembly parts 116 disposed on both sides of the base 110.
[0075] Reference Figure 2 and Figure 3 The connector includes a frame 111, two second assembly parts 112 respectively located on both sides of the frame 111, a plurality of first receiving slots 113 arranged on the upper part of the frame 111, a locking fastener 114, and a channel 115 located on the bottom of the frame 111, the channel 115 being used to accommodate the second piezoelectric ceramic sheet 13 passing through.
[0076] Reference Figure 2 and Figure 3 The first assembly part 116 includes at least two assembly grooves 117 respectively provided on the left and right sides of the base 110 and at least one assembly hole 118 provided in the assembly groove 117 for installing the fastener 114. The depth of the assembly groove 117 is adapted to the thickness of the second assembly part 112, so that when the second assembly part 112 is installed in the assembly groove 117 by the fastener 114, the side of the base 110 remains flat.
[0077] Reference Figure 2 and Figure 3 The piezoelectric Jacquard element 6 is fixed in the corresponding first receiving groove 113, and the second assembly part 112 is detachably mounted on the first assembly part 116 using a fastener 114. The fastener 114 can be a screw.
[0078] Other structures are similar to those in Embodiment 1, and will not be described in detail here.
[0079] Example 9 differs from Example 1 in that the swing range of the guide needle includes a first station at the head needle position, a third station at the tail needle position, and a second station. The second station is located midway between the first and third stations. The second piezoelectric ceramic element swings to switch the stop between the second and third stations, causing the guide needle to stop swinging at either the second or third station. This allows the guide needle in the Jacquard device to perform jacquard yarn guiding at the first, second, and third stations respectively. This makes it suitable for the requirements of warp-knitted jacquard products using a three-station Jacquard method.
[0080] The knitting method of the warp-knitted jacquard product includes: the warp-knitted jacquard product is knitted by the guide needles 21 of the three-station Jacquard comb, the Jacquard comb is configured with one-third machine size and is composed of JB1.1, JB1.2 and JB1.3, and the reverse jacquard is adopted.
[0081] In this weaving method, the offset signal of the first yarn in the thick weave is 0011, and it performs a looping motion with the padding yarn number 1-0 / 2-3 / / . The offset signal of the second yarn is 1122, and it performs a looping motion with the padding yarn number 2-1 / 3-4 / / .
[0082] When the control signal for thick tissue is 1112, the odd-numbered rows shift one needle in front of the needle and one needle in the back, forming a circle in the second column. The even-numbered rows shift one needle in front of the needle and two needles in the back, forming a double-warp tissue in the third and fourth columns.
[0083] When the control signal for thin tissue is 2112, the odd-numbered rows shift two needles in front of the needle and one needle on the back of the needle, forming a double-warp tissue in the second and third longitudinal rows. The even-numbered rows shift one needle in front of the needle and two needles on the back of the needle, forming a double-warp tissue in the third and fourth longitudinal rows.
[0084] When the control signal for thin tissue is 2100, the odd-numbered rows shift two needles in front of the needle and one needle on the back of the needle, forming overlapping tissue in the second and third longitudinal rows, while the even-numbered rows remain unchanged.
[0085] In a thin weave, when odd-numbered yarns alternate, i.e., the offset signals of the 1st, 5th, 9th, 13th... yarns are 0000 and 2200, respectively, and they form loops with padding numbers 1-0 / 1-2 / 3-2 / 1-2 / / ; when the offset signals of the 3rd, 7th, 11th, 15th... yarns are 2200 and 0000, respectively, and they form loops with padding numbers 3-2 / 1-2 / 1-0 / 1-2 / / ; and when the offset signal of even-numbered yarns is 1100, they form loops with padding numbers 2-1 / 1-2 / / , a diamond mesh effect can be obtained. In this case, the odd-numbered rows of needles are shifted one needle forward, forming a double warp weave in the first and second warp rows, while the even-numbered rows remain unchanged.
[0086] When the control signal for the floating thread structure is 0122, the odd-numbered rows are offset by one needle on the back of the needle, and the even-numbered rows are offset by one needle on the back of the needle, forming a double warp structure in the second and third longitudinal rows.
[0087] When the control signal for the floating thread structure is 2110, the odd-numbered rows shift two needles in front of the needle and one needle on the back of the needle, forming a double warp structure in the second and third longitudinal rows, while the even-numbered rows shift one needle in front of the needle.
[0088] Since each row involves two types of yarn padding actions: front-needle padding and back-needle padding, the padding number of the yarn on the i-th guide bar in the j-th row can be represented by di,j = (w, v) (w, v ∈ 0, 1, 2, ...). For example, d3,4 = (0, 1), where the padding number of the yarn on the 3rd guide bar in the 4th row is 0-1. In actual weaving, the entire warp-knitted fabric is often formed by weaving multiple rows from yarns on multiple guide bars. A matrix M is used to represent these multiple padding numbers. , where i∈1,2,3…m, m represents the number of rows, j∈1,2,3…n, n represents the number of combs in a row.
[0089] A looped weave typically consists of three parts: loop arcs, loop posts, and extension lines. Loop posts are often relatively regular, and their start and end points can be connected by curve segments. Loop arcs intersect with the next row of loops, making them more convoluted; their start, end, and two intermediate nodes are selected and connected by multiple line segments. Extension lines also intersect with other loops, creating a covering phenomenon. To highlight the difference in their z-coordinates, the start, intermediate, and end points of the extension lines (the end point being the start of the next row of loops) are selected. Therefore, a total of eight three-dimensional coordinate points P0-P7 need to be selected from these three parts. dx, dy, and k are configurable values. dx is the width of a loop, related to the stitch length; dy is the height of a loop, related to the tension speed; and k is the value of the yarn padding number. Points P0, P1, and P2 are the three coordinate points on one side of the straight line represented by (k+1)dx, representing the starting yarn padding number of this row of loops. Their x-axis coordinates can be expressed by the formula... The y-axis coordinate can be expressed as the formula. The z-axis coordinate is a given value, where a is 0 in the y-axis coordinate of point P0. Points P3, P4, and P5 are the yarn padding numbers at the end of this horizontal loop, and their x-axis coordinates can be expressed by the formula... The y-axis coordinate can also be expressed as the formula. The z-axis coordinate is a given value. P6 and P7 are two points on the extension line. P6 is the midpoint between P5 and P7, and P7 is the end point of the entire loop, coinciding with the starting point of the next loop. The x-axis coordinate of P7 can be expressed by the formula... The y-axis coordinate can be expressed as the formula. The z-axis coordinate is a given value: In the above formula, d1, d2, d3, and d4 represent the four yarn padding numbers in two rows of a Jacquard cell in the matrix. d1 and d2 are the first and second digits of the yarn padding number in the j-th row (usually starting with odd-numbered rows) of the i-th yarn, and d3 and d4 are the first and second digits of the yarn padding number in the (j+1)-th row of the i-th yarn. s1, s2, and s3 represent positive and negative directions, taking values of -1, 0, and 1 respectively. When the value is -1, it indicates clockwise yarn padding; when the value is 0, it indicates the loop is a float; and when the value is 1, it indicates counterclockwise yarn padding. s1 indicates that when d1 is less than d2, s1 is -1; when d1 equals d2, s1 is 0; and when d1 is less than d2, s1 is -1. When d3 is greater than d2, s1 is 1. s2 means that when d3 is less than d4, s2 is -1; when d3 equals d4, s2 is 0; and when d3 is greater than d4, s2 is 1. s3 means that when the smaller of d3 and d4 is less than the smaller of d1 and d2, s3 is -1; when the smaller of d3 and d4 is equal to the smaller of d1 and d2, s3 is 0; and when the smaller of d3 and d4 is greater than the smaller of d1 and d2, s3 is 1. This can be specifically represented by the formula. , , kt represents the offset value of the i-th yarn, taking values of 0, 1, 2, 3, ..., i, ... Since the initial value 0 of the yarn padding code for each yarn is shifted one position higher than the previous yarn, the initial value 0 of the yarn padding code for the (i+1)-th yarn corresponds to 1 in the yarn padding code for the i-th yarn. kt represents the initial value of the i-th yarn shifted i loop widths higher. n0 and n1 both indicate the y-column position of the loop. n0 indicates the starting point P0 is in the i-th column, and n1 indicates the ending point P7 is in the (i+1)-th column. The values of coefficients A, B, and C are related to the offset value of each point relative to the line containing the yarn padding value, and coefficient a is related to the coordinate position of each point relative to P0 on the y-axis. Therefore, the formula... The specific meaning is as follows: the length represented by the product of the initial yarn padding number d1 and the loop width dx, minus the product of s1 (indicating the direction of the loop padding) and the coefficient, multiplied by the loop width dx; Formula The specific meaning is the product of the number of rows n0 and the height of the circle, plus the product of the coefficient and the height of the circle.
[0090] When the parameters of A0-C7 are 0.3, 0.1, 0.4, 0.4, 0.1, 0.3, 0.3 respectively, the parameters of a1-a4 are 0.75, 1.1, 1.1, 0.75 respectively, and the values of Z0-Z7 are 1, 0, 1.5, 1.5, 0, 1, 4, 3 respectively, matrix M1 represents the padding numbers for the first and third yarns as 3-2 / 1-2 / 1-0 / 1-2 / 3-2 / 1-2 / / , and the padding numbers for the second and fourth yarns as 1-0 / 1-2 / 3-2 / 1-2 / 1-0 / 1-2 / / . Matrix M1 is represented as... .
[0091] When the padding yarn numbers for the 1st, 3rd, 5th, 7th... yarns are 1-0 / 1-2 / 3-2 / 1-2 / / , and the padding yarn numbers for the 2nd, 4th, 6th, 8th... yarns are 3-2 / 1-2 / 1-0 / 1-2 / / , they have a certain thickness.
[0092] Other structures are similar to those in Embodiment 1, and will not be described in detail here.
[0093] The above are merely specific embodiments of the present invention, but the design concept of the present invention is not limited thereto. Any non-substantial modifications made to the present invention using this concept shall be considered as infringing upon the protection scope of the present invention.
Claims
1. A comb base for use in a piezoelectric jacquard device, the comb base comprising a base and a plurality of first mounting grooves arranged on the base, characterized in that: The piezoelectric Jacquard device has multiple piezoelectric Jacquard elements with yarn guide needles and multiple second piezoelectric ceramic elements with stops. The comb base also includes multiple second mounting grooves arranged on the base and a plurality of toothed grooves on the front of the base. The first mounting slot is used to mount the corresponding piezoelectric Jacquard element, and the second mounting slot is used to mount the corresponding second piezoelectric ceramic element. The second mounting slot is located on the side away from the first mounting slot, and the length of the second piezoelectric ceramic element is greater than the length of the piezoelectric Jacquard element. The tooth groove includes at least one tooth groove body, at least one flat surface on the left side of the tooth groove body, at least one first groove on the right side of the tooth groove body, and at least one second groove on the right side of the tooth groove body. One side of the first groove is a first working position, and the other side of the first groove is connected to the other side of the second groove to form a third working position. One side of the second groove is connected to the inside of the first groove to form a second working position. The width of the first groove is two stitch pitches, and the width of the second groove is one stitch pitch. The second working position is located at the middle position between the first working position and the third working position. The tooth groove body has a stepped shape.
2. The comb base as described in claim 1, characterized in that: It also includes at least one mounting portion disposed between the first mounting groove and the second mounting groove. When the second piezoelectric ceramic element is stacked on top of the piezoelectric Jacquard element, the mounting portion is used to install a power supply device for supplying power to the piezoelectric Jacquard element. When the piezoelectric Jacquard element is stacked on top of the second piezoelectric ceramic element, the mounting portion is used to accommodate a portion of the second piezoelectric ceramic element.
3. The comb base as described in claim 1, characterized in that: The second groove extends from top to bottom through the bottom base.
4. The comb base as described in claim 1, characterized in that: When the first mounting groove is detachably disposed on the base, the second mounting groove and the base are integrally cast to form a whole.
5. The comb base as described in claim 1, characterized in that: When the second mounting groove is detachably provided on the base, the first mounting groove and the base are integrally cast to form a whole.
6. The comb base as described in claim 1, characterized in that: The base, the first mounting groove, and the second mounting groove are integrally cast to form a stepped whole.
7. A piezoelectric jacquard device, characterized in that: The device includes a fixing part having at least one comb base and at least one actuating part. The actuating part includes a plurality of piezoelectric Jacquard elements with yarn guide needles and a plurality of second piezoelectric ceramic elements with stops. The piezoelectric Jacquard elements are mounted on a portion of the comb base, and the second piezoelectric ceramic elements are mounted on another portion of the comb base. The torque of the second piezoelectric ceramic element is greater than the torque of the piezoelectric Jacquard element. The comb base is the comb base according to any one of claims 1-6. The swing range of the yarn guide needle includes a first station located at the first needle position of the yarn guide needle, a third station located at the tail needle position of the yarn guide needle, and a second station. The second station is located in the middle position between the first station and the third station. The second piezoelectric ceramic element drives the stop block to switch between the second station and the third station by swinging, so that the yarn guide needle stops swinging at the second station or the third station.