Piezoelectric jacquard comb lock catch for warp knitting machine

Abstract

The utility model discloses a piezoelectric jacquard comb lock catch for a warp knitting machine, and relates to the technical field of warp knitting machines. The comb comprises a comb section and a support connected to the upper portion of the comb section in a sliding mode, and two hook-shaped grooves and a stress groove are sequentially formed in the upper portion of the comb section from left to right. The fixing mode of the piezoelectric jacquard needle and the guide bar is optimized, a plastic support at the tail is omitted, the lock catch structure is moved from the tail to the belly of the needle plate, more compact design is formed, on the premise that locking strength and stability are not affected, occupied space is remarkably reduced, and cost is reduced. According to the short needle plate, more installation space can be provided for a wireless jacquard system to accommodate a drive circuit board, and the length of the short needle plate is kept consistent with that of a standard short needle plate, so that the wireless jacquard needle can directly replace a wired jacquard needle, the flexibility of structural layout and the space utilization rate are improved, the requirement of the wireless jacquard system for equipment miniaturization is met, and the cost is reduced. And the operability and the reliability of the wireless jacquard in practical application are obviously improved.

Description

Technical Field

[0001] The utility model belongs to the field of warp knitting machines, and specifically relates to a piezoelectric jacquard comb latch for a warp knitting machine. Background Art

[0002] Piezoelectric jacquard elements are used to control the deflection of guide yarn needles on warp knitting machines. Their basic structure consists of two pieces of piezoelectric ceramics clamped on both sides of a fiberglass sheet (insulating). The piezoelectric ceramics will deform when a voltage is applied, and copper sheets are often used as electrodes to transfer the voltage. By switching the circuit switches on both sides, voltage is alternately applied to the piezoelectric ceramics, and the piezoelectric ceramics deform to drive the guide yarn needles to deflect left or right. Since the behavior of the piezoelectric ceramics is similar to that of a capacitor, the piezoelectric jacquard elements can maintain their deflection positions under the control of current pulses, ensuring stable adjustment of the needle pitch.

[0003] However, when installing the existing piezoelectric jacquard needles of warp knitting machines, a plastic bracket needs to be set at the tail of the comb. The bracket is fixed by two M4 screws. The screws are connected to an iron sheet with a thickness of 2.5 mm. The iron sheet hooks the hook groove at the tail of the comb through threads, and at the same time, the card slot in front of the needle plate holds the comb, so that the needle plate is firmly locked on the comb. Although this structure can achieve the stable installation of the needle plate, the plastic bracket and screws at the tail occupy a large amount of space, and the wireless jacquard system needs to use this space to place the drive circuit board. Therefore, the existing plastic bracket buckle structure cannot be reduced to the length of the standard short needle plate, resulting in that the wireless jacquard needle cannot directly replace the standard short needle plate of the wired jacquard.

[0004] Under the background of the existing technology, Chinese Patent No. CN220952361U discloses a three-station jacquard device and textile machinery. The jacquard device includes a plurality of piezoelectric jacquard elements. The first piezoelectric jacquard element drives the guide yarn needle to swing, while the second piezoelectric jacquard element replaces the guide yarn needle with a baffle unit, and restricts the movement of the guide yarn needle between different stations through the switching of the baffle unit. Although this design realizes multi-station operation in terms of function, the latch of this device still adopts a two-point latch method, that is, one point is used for support and the other point is used for locking.

[0005] Although this two-point latch structure ensures safety to a certain extent, since the locking end also needs to take into account the fixation of the posture, the latch must be designed as a relatively large bracket and buckle piece to ensure the firmness and anti-dropping property of the locking. This design occupies a large amount of space and does not meet the structural requirements of the wireless jacquard. The wireless jacquard requires a more compact volume to accommodate the drive circuit board and other components. Therefore, the traditional two-point latch method is not conducive to the optimization of the overall product space layout.

[0006] In view of this, the present utility model is specifically proposed. Content of the Utility Model

[0007] The technical problem to be solved by the present utility model is to overcome the deficiencies of the prior art and provide a piezoelectric jacquard comb lock for a warp knitting machine, solving the problems presented in the above-mentioned background art.

[0008] To solve the above technical problems, the basic concept of the technical solution adopted by the present utility model is:

[0009] A piezoelectric jacquard comb lock for a warp knitting machine, comprising: a comb segment and a bracket slidably connected above the comb segment, and two hook-shaped grooves and a stress groove are sequentially arranged from left to right above the comb segment;

[0010] A chassis is connected to the first edge below the bracket, side plates that are mutually clamped with the chassis are arranged on both sides of the bracket, and a buckle located inside the hook-shaped groove is fixedly connected below the side plates. When locked, the lock is inserted into the card slot, so that the needle plate and the comb have a stable locking effect both longitudinally and transversely;

[0011] A support part is connected to the second edge below the bracket, a notch is opened below the side of the bracket close to the support part, and a pull plate located in the stress groove slides inside the notch, for generating a pulling force to adjust the position of the comb segment so that the hook-shaped groove and the buckle are engaged with each other to form a three-point locking structure.

[0012] Optionally, through holes are penetrated through the opposite sides of the support part, a support plate is arranged on the side of the support part away from the notch, and a screw that passes through the through hole and is threadedly connected with the pull plate is rotatably connected inside the support plate.

[0013] Optionally, connection blocks are connected to both sides of the support plate, through grooves adapted to the connection blocks are opened on the opposite sides of the side plates, and the connection blocks are inserted inside the through grooves.

[0014] Optionally, a support plate is arranged at the first edge above the bracket, a head is installed between the support plate and above the bracket, an installation frame with a plurality of installation grooves is fixedly connected above the support plate, and a positioning groove opposite to the installation groove is opened at the end of the head, and a piezoelectric ceramic sheet is inserted between the installation groove and the positioning groove.

[0015] Optionally, placement grooves adapted to the side plates are opened on both sides of the bracket, and a plurality of connecting plates extend from both sides of the chassis, and card slots adapted to the card plates are penetrated through the opposite sides of the side plates.

[0016] Optionally, two installation plates are fixedly connected to the second edge above the bracket, a first circuit board that fits with the bracket is installed above the space formed by the two installation plates, a second circuit board is installed below the bracket, the first circuit board and the second circuit board are interconnected through a terminal block passing through the bracket, and a shrapnel assembly is arranged below the second circuit board, and a frame is arranged above the space formed by the installation plates to form an accommodation space.

[0017] After adopting the above technical solution, the utility model has the following beneficial effects compared with the prior art. Of course, any product implementing the utility model does not necessarily need to achieve all the advantages described below at the same time:

[0018] 1. By optimizing the fixing method of the piezoelectric jacquard needle and the comb, the plastic bracket at the tail is cancelled, and the buckle structure is moved from the tail to the abdomen of the needle plate, forming a more compact design. Without affecting the locking strength and stability, the space occupation is significantly reduced, which can provide more installation space for the wireless jacquard system to accommodate the driving circuit board and maintain the same length as the standard short needle plate, thus realizing the direct replacement of the wireless jacquard needle for the wired jacquard needle. At the same time, the flexibility of the structural layout and the space utilization rate are improved, meeting the requirements of the wireless jacquard system for equipment miniaturization, and significantly enhancing the operability and reliability of the wireless jacquard in practical applications.

[0019] 2. Through the sliding adjustment of the pull plate, the comb section is positioned, so that the hook-shaped groove is aligned with the buckle and tightly engaged, finally forming a three-point locking structure with stability both longitudinally and transversely. This structure effectively prevents the equipment from loosening or shifting due to vibration or mechanical stress during operation, and evenly disperses the stress in all directions, ensuring the stable and safe connection between the needle plate and the comb in a complex working environment, thereby improving the operation reliability and service life of the equipment.

[0020] The following further describes in detail the specific implementation manners of the utility model with reference to the accompanying drawings. Description of the Drawings

[0021] The following drawings in the description are only some embodiments. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts. In the attached

[0022] In the figures:

[0023] Figure 1 It is a combined three-dimensional structure schematic diagram between the piezoelectric jacquard comb and the comb section;

[0024] Figure 2 It is a three-dimensional structure schematic diagram above the piezoelectric jacquard comb;

[0025] Figure 3 It is a three-dimensional structure schematic diagram above the piezoelectric jacquard comb;

[0026] Figure 4 It is a combined partial three-dimensional structure schematic diagram between the piezoelectric jacquard comb and the comb section;

[0027] Figure 5 It is a combined sectional structure schematic diagram between the piezoelectric jacquard comb and the comb section.

[0028] In the accompanying drawings, the list of components represented by each reference numeral is as follows:

[0029] 1. Comb section; 2. Bracket; 3. Hook-shaped groove; 4. Stress groove; 5. Underframe; 6. Side plate; 7. Snap; 8. Support part; 9. Notch; 10. Pulling plate; 11. Through hole; 12. Support plate; 13. Screw; 14. Connecting block; 15. Through groove; 16. Mounting frame; 17. End; 18. Mounting groove; 19. Piezoelectric ceramic sheet; 20. Connecting plate; 21. Card slot; 22. Mounting plate; 23. First circuit board; 24. Second circuit board; 25. Spring piece assembly; 26. Frame.

[0030] It should be noted that these accompanying drawings and text descriptions are not intended to limit the scope of the concept of the present utility model in any way, but to illustrate the concept of the present utility model to those skilled in the art by referring to specific embodiments. Detailed implementation manners

[0031] Now, the present utility model will be further described in detail with reference to the accompanying drawings.

[0032] Please refer to Figures 1-5 As shown, in this embodiment, a piezoelectric jacquard comb lock for a warp knitting machine is provided, which includes a comb section 1 and a bracket 2 slidably connected above the comb section 1. Above the comb section 1, two hook-shaped grooves 3 and a stress groove 4 are sequentially arranged from left to right;

[0033] At the first edge below the bracket 2, an underframe 5 is connected. On both sides of the bracket 2, side plates 6 that are mutually clamped with the underframe 5 are provided. Below the side plates 6, snaps 7 located inside the hook-shaped grooves 3 are fixedly connected. When locked, the lock is inserted into the card slot 21, so that the needle plate and the comb have a stable locking effect both longitudinally and transversely;

[0034] At the second edge below the bracket 2, a support part 8 is connected. Below the bracket 2 on the side close to the support part 8, a notch 9 is opened. Inside the notch 9, a pulling plate 10 located inside the stress groove 4 slides, which is used to generate a pulling force to adjust the position of the comb section 1 so that the hook-shaped groove 3 and the snap 7 are engaged with each other to form a three-point locking structure.

[0035] When the piezoelectric jacquard comb and the comb segment 1 are combined, first, the buckle 7 is pre-positioned inside the hook-shaped groove 3 of the comb segment 1 to ensure that the buckle 7 can be smoothly inserted into the hook-shaped groove 3 during the locking process, initially completing the positioning of the comb segment 1 in the longitudinal and transverse directions. When locking is required, the position of the comb segment 1 is adjusted by sliding the pull plate 10. When the pull plate 10 moves, it generates a pulling force, causing the hook-shaped groove 3 on the comb segment 1 to gradually align with the buckle 7. When the comb segment 1 moves to the appropriate position, the hook-shaped groove 3 and the buckle 7 are precisely engaged, and the buckle 7 is firmly embedded in the hook-shaped groove 3, forming a reliable locking mechanism. This locking structure ensures that the needle plate and the comb are well-fixed in both the longitudinal and transverse directions, effectively preventing loosening or displacement caused by vibration or mechanical stress. In addition, the first edge of the bracket 2 is connected to the chassis 5, and the second edge is connected to the support portion 8, forming an overall frame 26 structure. Through the coordinated action of the hook-shaped groove 3, the buckle 7, the bracket 2, and the chassis 5, a stable three-point locking structure is formed. This design not only enhances the fixing firmness of the device but also can evenly disperse the acting forces during operation, ensuring the safety and stability of the device under various working conditions.

[0036] In this embodiment, through holes 11 are formed through the opposite sides of the support portion 8. A support plate 12 is provided on the side of the support portion 8 away from the notch 9. A screw 13 that passes through the through hole 11 and is threadedly connected to the pull plate 10 is rotatably connected inside the support plate 12. Through the threaded connection between the screw 13 and the pull plate 10, the position of the pull plate 10 can be adjusted by rotating the screw 13, thereby achieving precise mechanical displacement adjustment. The screw 13 rotates through a bearing inside the support plate 12.

[0037] In this embodiment, connection blocks 14 are connected to both sides of the support plate 12. Through grooves 15 adapted to the connection blocks 14 are formed on the opposite sides of the side plate 6. The connection blocks 14 are inserted into the through grooves 15. Through the design of inserting the connection blocks 14 into the through grooves 15, complex fasteners are not required during the assembly process, which can significantly improve the assembly efficiency. The insertion design enables quick connection and disassembly between components, especially significantly reducing the operation time and labor costs during maintenance and replacement.

[0038] In this embodiment, a support plate 16 is provided at the first edge above the bracket 2. An end head 17 is installed between the support plate 16 and the upper part of the bracket 2. An installation frame 18 with multiple installation grooves is fixedly connected above the support plate 16. A positioning groove opposite to the installation groove is formed at the end of the end head 17. A piezoelectric ceramic sheet 19 is inserted between the installation groove and the positioning groove. The precise matching design of the installation groove and the positioning groove can effectively reduce problems caused by assembly errors, ensuring that the piezoelectric ceramic sheet 19 is always in the designed position. In addition, the layout between the support plate 16 and the end head 17 provides a certain space for the piezoelectric ceramic sheet 19, enabling the piezoelectric ceramic sheet 19 to dissipate heat better during operation and avoiding performance degradation or failure caused by overheating.

[0039] In this embodiment, placing grooves adapted to the side plates 6 are provided on both sides of the bracket 2, and a plurality of connecting plates 20 extend from both sides of the chassis 5. Through grooves 21 adapted to the clamping plates are provided through the opposite sides of the side plates 6. The plurality of connecting plates 20 extending from both sides of the chassis 5 are adapted to the through grooves 21 on the side plates 6, and the bracket 2 and the side plates 6 are tightly combined through a plurality of connection points. This multi-point clamping design greatly enhances the connection strength of the structure, ensures the tight fit between components, and effectively avoids the problem of loose connection that may occur in single-point connection.

[0040] In this embodiment, two mounting plates 22 are fixedly connected to the second edge above the bracket 2. A first circuit board 23 that fits the bracket 2 is mounted above the space formed by the two mounting plates 22. A second circuit board 24 is mounted below the bracket 2. The first circuit board 23 and the second circuit board 24 pass through the bracket 2 and are interconnected through a terminal block. A shrapnel assembly 25 is provided below the second circuit board 24, and a frame 26 is provided above the space formed by the mounting plates 22 to form an accommodating space. The first circuit board 23 and the second circuit board 24 can be respectively mounted above and below the bracket 2, making full use of the space of the bracket 2 and reducing the overall volume of the device. In addition, a shrapnel assembly 25 is provided below the second circuit board 24. During operation, the shrapnel assembly 25 can effectively absorb the impact force caused by external vibration or mechanical stress on the circuit board, prevent the circuit board from shifting or being damaged, and thus improve the durability and reliability of the entire device.

[0041] The present utility model is not limited to the above embodiments. Anyone should know that structural changes made under the inspiration of the present utility model, as long as they have the same or similar technical solutions as the present utility model, fall within the protection scope of the present utility model. The technologies, shapes, and structures not described in detail in the present utility model are all well-known technologies.

Claims

1. A piezoelectric jacquard comb latch for a warp knitting machine, characterized in that, Comprising: A comb segment (1) and a bracket (2) slidably connected above the comb segment (1). Above the comb segment (1), two hook-shaped grooves (3) and a force-receiving groove (4) are sequentially arranged from left to right. A chassis (5) is connected to the first edge below the bracket (2). Side plates (6) that are mutually engaged with the chassis (5) are arranged on both sides of the bracket (2). A buckle (7) located inside the hook-shaped groove (3) is fixedly connected below the side plate (6). When locked, the lock engages into the card slot (21), so that the needle plate and the comb have a stable locking effect both longitudinally and transversely. A support portion (8) is connected to the second edge below the bracket (2). A notch (9) is opened below the side of the bracket (2) close to the support portion (8). A pull plate (10) located inside the force-receiving groove (4) slides inside the notch (9), which is used to generate a pulling force to adjust the position of the comb segment (1) so that the hook-shaped groove (3) and the buckle (7) are engaged with each other to form a three-point locking structure.

2. The piezoelectric jacquard comb latch for a warp knitting machine according to claim 1, wherein A through hole (11) is penetrated through the opposite side of the support portion (8). A support plate (12) is arranged on the side of the support portion (8) away from the notch (9). A screw (13) that passes through the through hole (11) and is threadedly connected to the pull plate (10) is rotatably connected inside the support plate (12).

3. The piezoelectric jacquard comb latch for a warp knitting machine according to claim 1, characterized in that, Connection blocks (14) are connected to both sides of the support plate (12). A through groove (15) adapted to the connection block (14) is opened on the opposite side of the side plate (6). The connection block (14) is inserted inside the through groove (15).

4. A piezoelectric jacquard comb latch for a warp knitting machine according to claim 1, characterized in that, A support plate (16) is arranged at the first edge above the bracket (2). An end head (17) is installed between the support plate (16) and above the bracket (2). An installation groove (18) with multiple installation slots is fixedly connected above the support plate (16). A positioning slot opposite to the installation slot is opened at the end of the end head (17). A piezoelectric ceramic sheet (19) is inserted between the installation groove (18) and the positioning slot.

5. A piezoelectric jacquard comb latch for a warp knitting machine according to claim 1, characterized in that, Placing grooves adapted to the side plates (6) are opened on both sides of the bracket (2). A plurality of connecting plates (20) extend from both sides of the chassis (5). A card slot (21) adapted to the card plate is penetrated through the opposite side of the side plate (6).

6. The piezoelectric jacquard comb latch for a warp knitting machine according to claim 1, characterized in that, Two installation plates (22) are fixedly connected to the second edge above the bracket (2). A first circuit board (23) that fits with the bracket (2) is installed above the space formed by the two installation plates (22). A second circuit board (24) is installed below the bracket (2). The first circuit board (23) and the second circuit board (24) are interconnected through a terminal block passing through the bracket (2). A shrapnel assembly (25) is arranged below the second circuit board (24). A frame (26) is arranged above the space formed by the installation plates (22) to form an accommodation space.

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