Yarn pressing device of warp knitting machine

Abstract

The utility model discloses a yarn pressing device of a warp knitting machine, which comprises a support plate, the lower end of the support plate is symmetrically connected with mounting covers, inner cavities of the two mounting covers are jointly provided with a rotary adjusting mechanism, and the rotary adjusting mechanism is connected with a yarn pressing mechanism. Compared with the prior art, the yarn pressing device is reasonable in structural design and high in practicability, the angle of the yarn pressing plate can be conveniently and effectively adjusted, the yarn pressing plate can be prevented from easily and randomly swinging, and the yarn pressing device can be used for adjusting the angle of the yarn pressing plate. By designing two groups of yarn pressing plates, when one group of yarn pressing plates is abraded, the other group of yarn pressing plates can continue to work, the abraded yarn pressing plates can be replaced in time, and the situation that shutdown operation is needed when the yarn pressing plates are replaced, and the working efficiency is affected is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of textile, in particular to a yarn pressing device for a warp knitting machine. Background Technique

[0002] Warp knitting means that one or several groups of parallel arranged yarns are fed into all working needles of the machine in the warp direction and form loops simultaneously to form a knitted fabric. The fabric is called a warp knitted fabric, and the machine that completes this warp knitting is called a warp knitting machine. The main loop-forming parts of a warp knitting machine are knitting needles, guide yarn needles, sinkers and yarn pressing plates.

[0003] According to the patent publication number CN218711284U, a yarn pressing assembly of a yarn pressing type warp knitting machine is disclosed, which includes a support plate. Both sides of the bottom end of the support plate are fixedly connected with support blocks. Through grooves are respectively opened at the centers of the support blocks. Support columns are movably connected inside the through grooves through bearings. One end of each support column is located inside the through groove, and the other end of the support column is located directly below the support plate. A driving mechanism is arranged inside the support plate.

[0004] Although the above patent uses a driving mechanism, a servo motor is used to drive a first transmission wheel to rotate inside the support plate. Thus, under the action of a belt, a second transmission wheel is driven to rotate at the bottom end of the support plate, thereby driving the support column to rotate, so as to realize the angle adjustment of the yarn pressing plate. Through the pressing angle of the yarn pressing plate, it is beneficial for the yarn to smoothly enter the next process, and a suitable pressing angle causes less damage to the yarn. However, when adjusting the angle of the yarn pressing plate, the driving mechanism drives the clamping mechanism and the yarn pressing plate to rotate simultaneously. Subsequently, the moving block connected to the clamping mechanism and the through ring outside it rotate synchronously. Therefore, after the angle of the yarn pressing plate changes, the angle of the through ring is different from that of the fixed block, resulting in the insertion rod being unable to be inserted into the through ring to limit and fix the clamping mechanism and the yarn pressing plate. As a result, although the angle of the yarn pressing plate can be adjusted, its random rotation causes the adjusted angle to be unable to be firmly fixed, resulting in poor angle adjustment effect. For this reason, we provide a yarn pressing device for a warp knitting machine to solve this problem. Content of the Utility Model

[0005] The utility model aims to provide a technical solution of a yarn pressing device for a warp knitting machine that can solve the above problems to overcome the above deficiencies.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A yarn pressing device for a warp knitting machine includes a support plate. Installation covers are symmetrically connected to the lower end of the support plate. A rotation adjustment mechanism is jointly arranged inside the two installation covers. The rotation adjustment mechanism is connected with a yarn pressing mechanism;

[0007] The rotation adjustment mechanism includes a driving motor installed in the inner cavity of an installation cover. The output end of the driving motor is connected to a rotating shaft. One end of the rotating shaft penetrates the installation cover and is connected to the yarn pressing mechanism. One side of the yarn pressing mechanism is connected to a support shaft. One end of the support shaft penetrates another installation cover and extends into its inner cavity. A bearing seat rotatably connected thereto is installed in the inner cavity of the installation cover. A ratchet wheel is installed on the outer side of the support shaft. A first fixed shaft is installed in the inner cavity of the installation cover. A driving ratchet pawl meshing with the ratchet wheel is rotatably connected to the outer side of the first fixed shaft.

[0008] As a further solution of the present utility model: The yarn pressing mechanism includes a base plate and two yarn pressing plates. The two sides of the base plate are respectively connected to the rotating shaft and the support shaft. First insertion plates and second insertion plates are installed at both ends of the base plate. Slots are provided at one ends of the yarn pressing plates. The slots are inserted into the first insertion plates and the second insertion plates. A baffle is installed at one end of the base plate. Second installation grooves are provided at one ends of the second insertion plates. Clamping components are installed in the inner cavities of the second installation grooves.

[0009] As a further solution of the present utility model: The clamping component includes a second spring rod installed in the inner cavity of the second installation groove. One end of the second spring rod is connected to a pressing plate. One side of the pressing plate is in contact with the yarn pressing plate.

[0010] As a further solution of the present utility model: A first T-shaped groove is provided on one side of the first insertion plate. A second T-shaped groove is provided on one side of the second insertion plate. Two T-shaped blocks respectively slidingly connected to the first T-shaped groove and the second T-shaped groove are connected to the right side of the inner cavity of the slot.

[0011] As a further solution of the present utility model: A first installation groove is provided on one side of the second insertion plate. A first spring rod is installed in the inner cavity of the first installation groove. One end of the first spring rod is connected to a pressing block. One side of the pressing block is in contact with the T-shaped block in the inner cavity of the first T-shaped groove.

[0012] As a further solution of the present utility model: A second fixed shaft is installed in the inner cavity of the installation cover. A check ratchet pawl is rotatably connected to the outer side of the second fixed shaft. The check ratchet pawl meshes with the ratchet wheel. A fixing disk is installed on the outer side of the second fixed shaft. A torsion spring is commonly inserted between the fixing disk and the check ratchet pawl.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. The rotation adjustment mechanism rotates the yarn pressing mechanism as a whole, facilitating the angle adjustment of the yarn pressing plate of the yarn pressing mechanism. After the angle adjustment of the yarn pressing plate is completed, the driving motor stops working. When the yarn pressing plate has a tendency to drive the support shaft to drive the ratchet wheel to rotate in the reverse direction, the active pawl engages with the ratchet wheel, causing the ratchet wheel to be unable to rotate. When the yarn pressing plate has a tendency to drive the support shaft to drive the ratchet wheel to rotate in the forward direction, the ratchet wheel drives the check pawl to swing when it rotates, and the check pawl is restricted by the torsion spring. When a small rotational force cannot drive the torsion spring to rotate, the check pawl cannot swing easily. Therefore, the rotation of the ratchet wheel is restricted in the reverse direction. Furthermore, after the angle adjustment of the yarn pressing plate is completed, it is convenient to achieve an effective fixing effect, preventing the yarn pressing plate from swinging easily and affecting its normal yarn pressing operation, effectively improving the effect of stable angle adjustment of the yarn pressing plate;

[0015] 2. By designing two groups of yarn pressing plates in the yarn pressing mechanism, when one group of yarn pressing plates is worn, the other group of yarn pressing plates can continue to work, and the worn yarn pressing plates can be replaced in time, avoiding the need to stop work when replacing the yarn pressing plates and affecting work efficiency. After the yarn pressing plates are installed, they are effectively clamped and fixed, which is convenient for installation and disassembly and easy to use, effectively improving the use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is the overall three-dimensional structure schematic diagram of the present utility model;

[0017] Figure 2 is the overall three-dimensional structure schematic diagram of the half-section of the present utility model;

[0018] Figure 3 is the Figure 2 amplified structure schematic diagram of part A device of the present utility model;

[0019] Figure 4 is the split half-section three-dimensional structure schematic diagram of the yarn pressing mechanism of the present utility model;

[0020] Figure 5 is the partial three-dimensional structure schematic diagram of the cross-section of the yarn pressing mechanism of the present utility model;

[0021] Figure 6 is the side three-dimensional structure schematic diagram of the first plug board and the second plug board of the present utility model;

[0022] Figure 7 is the bottom three-dimensional structure schematic diagram of the first plug board and the second plug board of the present utility model;

[0023] Figure 8 is the side structure schematic diagram of the partial yarn pressing mechanism of the present utility model.

[0024] The reference numerals and names in the drawings are as follows:

[0025] Support plate - 1, mounting cover - 2, rotation adjustment mechanism - 3, drive motor - 31, rotating shaft - 32, support shaft - 33, bearing seat - 34, ratchet - 35, first fixed shaft - 36, active ratchet pawl - 37, second fixed shaft - 38, check ratchet pawl - 39, fixed disk - 310, torsion spring - 311, yarn pressing mechanism - 4, base plate - 41, baffle - 42, first plug board - 43, second plug board - 44, first T - shaped groove - 45, second T - shaped groove - 46, yarn pressing plate - 47, slot - 48, T - shaped block - 49, first mounting groove - 410, first spring rod - 411, pressing block - 412, second mounting groove - 413, second spring rod - 414, pressing plate - 415. Detailed implementation mode

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0027] Please refer to Figure 1-8 , a yarn pressing device of a warp knitting machine, including a support plate 1, the lower ends of the support plate 1 are symmetrically connected with mounting covers 2, a rotation adjustment mechanism 3 is jointly arranged in the inner cavities of the two mounting covers 2, the rotation adjustment mechanism 3 includes a drive motor 31 installed in the inner cavity of one mounting cover 2, the output end of the drive motor 31 is connected with a rotating shaft 32, one end of the rotating shaft 32 penetrates through the mounting cover 2 and is connected with the yarn pressing mechanism 4, one side of the yarn pressing mechanism 4 is connected with a support shaft 33, one end of the support shaft 33 penetrates through the other mounting cover 2 and extends into its inner cavity, a bearing seat 34 rotatably connected therewith is installed in the inner cavity of the mounting cover 2, a ratchet 35 is installed on the outer side of the support shaft 33, a first fixed shaft 36 is installed in the inner cavity of the mounting cover 2, and an active ratchet pawl 37 meshing with the ratchet 35 is rotatably connected to the outer side of the first fixed shaft 36.

[0028] A second fixed shaft 38 is installed in the inner cavity of the mounting cover 2, a check ratchet pawl 39 is rotatably connected to the outer side of the second fixed shaft 38, the check ratchet pawl 39 meshes with the ratchet 35, a fixed disk 310 is installed on the outer side of the second fixed shaft 38, and a torsion spring 311 is jointly inserted between the fixed disk 310 and the check ratchet pawl 39.

[0029] The output end of the driving motor 31 drives the rotating shaft 32 to rotate forward, the rotating shaft 32 drives the entire yarn pressing mechanism 4 to rotate, and the yarn pressing mechanism 4 drives the support shaft 33 to rotate, facilitating the angle adjustment of the yarn pressing plate 47 of the yarn pressing mechanism 4. While the support shaft 33 rotates, it drives the ratchet wheel 35 to rotate, and the driving pawl 37 and the check pawl 39 engaged with the outer side of the ratchet wheel 35 swing along with the engagement. When the angle adjustment of the yarn pressing plate 47 is completed, the driving motor 31 stops working. Since the driving pawl 37 is engaged with the ratchet wheel 35, when the yarn pressing plate 47 has a tendency to drive the support shaft 33 to drive the ratchet wheel 35 to rotate in the reverse direction, the driving pawl 37 gets stuck with the ratchet wheel 35, resulting in the ratchet wheel 35 being unable to rotate. When the yarn pressing plate 47 has a tendency to drive the support shaft 33 to drive the ratchet wheel 35 to rotate forward, the ratchet wheel 35 drives the check pawl 39 to swing when it rotates, and a torsion spring 311 is installed between the check pawl 39 and the fixed disk 310, causing the check pawl 39 to be restricted by the torsion spring 311 and unable to swing. Therefore, the rotation of the ratchet wheel 35 is restricted in the reverse direction. Furthermore, after the angle adjustment of the yarn pressing plate 47 is completed, it is convenient to achieve an effective fixing effect, prevent the yarn pressing plate 47 from swinging easily, and affect its normal yarn pressing operation, effectively improving the effect of stable angle adjustment of the yarn pressing plate 47.

[0030] The rotation adjustment mechanism 3 is connected to the yarn pressing mechanism 4. The yarn pressing mechanism 4 includes a base plate 41 and two yarn pressing plates 47. The two sides of the base plate 41 are respectively connected to the rotating shaft 32 and the support shaft 33. First plug plates 43 and second plug plates 44 are installed at both ends of the base plate 41. Slots 48 are provided at one ends of the yarn pressing plates 47, and the slots 48 are inserted into the first plug plates 43 and the second plug plates 44. A baffle plate 42 is installed at one end of the base plate 41. Second installation grooves 413 are provided at one ends of the second plug plates 44, and clamping components are installed in the inner cavities of the second installation grooves 413. The clamping components include second spring rods 414 installed in the inner cavities of the second installation grooves 413. One ends of the second spring rods 414 are connected to pressing plates 415, and one sides of the pressing plates 415 are in contact with the yarn pressing plates 47.

[0031] By manually pushing the pressing plate 415, the pressing plate 415 drives the second spring rod 414 to move away from the baffle plate 42. Subsequently, the slot 48 at the lower end of the yarn pressing plate 47 is inserted outside the first plug plate 43 and the second plug plate 44, and one side of the yarn pressing plate 47 abuts against the baffle plate 42. At the same time, the compressed second spring rod 414 rebounds and drives the yarn pressing plate 47 to move towards the baffle plate 42, thereby clamping one side of the yarn pressing plate 47 and achieving an effective clamping and fixing effect on the yarn pressing plate 47. By designing two groups of yarn pressing plates 47, it is convenient that when one group of yarn pressing plates 47 is worn, the other group of yarn pressing plates 47 can continue to work, and the worn yarn pressing plates 47 can be replaced in time, avoiding the need for shutdown operation when replacing the yarn pressing plates 47 and affecting the work efficiency.

[0032] On one side of the first insertion plate 43, there is a first T-shaped groove 45. On one side of the second insertion plate 44, there is a second T-shaped groove 46. On the right side of the inner cavity of the slot 48, there are two T-shaped blocks 49 that are respectively slidably connected to the first T-shaped groove 45 and the second T-shaped groove 46. On one side of the second insertion plate 44, there is a first installation groove 410. Inside the first installation groove 410, there is a first spring rod 411. One end of the first spring rod 411 is connected to a pressing block 412. One side of the pressing block 412 is in contact with the T-shaped block 49 inside the first T-shaped groove 45.

[0033] When the slot 48 of the yarn pressing plate 47 is inserted outside the first insertion plate 43 and the second insertion plate 44, the two T-shaped blocks 49 inside the slot 48 respectively enter the first T-shaped groove 45 from the gap between the first insertion plate 43 and the second insertion plate 44 and enter the second T-shaped groove 46 from the gap between the second insertion plate 44 and the pressing plate 415, which is convenient for further improving the limit and stable insertion effect of the yarn pressing plate 47. After one of the T-shaped blocks 49 enters the first T-shaped groove 45, the compressed first spring rod 411 rebounds and drives the pressing block 412 to move towards the inner cavity of the first T-shaped groove 45. Then, the pressing block 412 presses against the T-shaped block 49, which is convenient for further fixing and clamping the yarn pressing plate 47, facilitating the stable installation of the yarn pressing plate 47, and also convenient for disassembly and replacement, making it easy to use.

[0034] Working principle: When the utility model is in use, the driving motor 31 is turned on through an external switch. The output end of the driving motor 31 drives the rotating shaft 32 to rotate forward. The rotating shaft 32 drives the entire yarn pressing mechanism 4 to rotate, and the yarn pressing mechanism 4 drives the support shaft 33 to rotate, facilitating the angle adjustment of the yarn pressing plate 47 of the yarn pressing mechanism 4. While the support shaft 33 rotates, it drives the ratchet wheel 35 to rotate. The driving pawl 37 and the check pawl 39 meshing with the outer side of the ratchet wheel 35 swing along with the meshing. When the angle adjustment of the yarn pressing plate 47 is completed, the driving motor 31 stops working. Since the driving pawl 37 meshes with the ratchet wheel 35, when the yarn pressing plate 47 has a tendency to drive the support shaft 33 to drive the ratchet wheel 35 to rotate in the reverse direction, the driving pawl 37 gets stuck with the ratchet wheel 35, resulting in the ratchet wheel 35 being unable to rotate. When the yarn pressing plate 47 has a tendency to drive the support shaft 33 to drive the ratchet wheel 35 to rotate forward, the ratchet wheel 35 rotates to drive the check pawl 39 to swing. A torsion spring 311 is installed between the check pawl 39 and the fixed disk 310, causing the check pawl 39 to be restricted by the torsion spring 311 and unable to swing. Therefore, it reversely restricts the rotation of the ratchet wheel 35. Further, after the angle adjustment of the yarn pressing plate 47 is completed, it is convenient to achieve an effective fixing effect, avoiding the easy swinging of the yarn pressing plate 47 and affecting its normal yarn pressing operation, effectively improving the effect of stable angle adjustment of the yarn pressing plate 47. When the yarn pressing plate 47 is installed, the pressing plate 415 and the pressing block 412 are manually pushed until the pressing block 412 is pushed into the inner cavity of the first installation groove 410. At this time, the first spring rod 411 is compressed. At the same time, the slot 48 at the lower end of the yarn pressing plate 47 is inserted outside the first plug board 43 and the second plug board 44. The two T-shaped blocks 49 inside the slot 48 respectively enter the first T-shaped groove 45 from the gap between the first plug board 43 and the second plug board 44 and enter the second T-shaped groove 46 from the gap between the second plug board 44 and the pressing plate 415, facilitating further improving the limiting and stable plugging effect of the yarn pressing plate 47. After one of the T-shaped blocks 49 enters the first T-shaped groove 45, the compressed first spring rod 411 rebounds and drives the pressing block 412 to move towards the inner cavity of the first T-shaped groove 45. Then, the pressing block 412 presses against the T-shaped block 49, facilitating further fixing and clamping effect on the yarn pressing plate 47, facilitating the stable installation of the yarn pressing plate 47, and being convenient for disassembly and replacement, facilitating use. At the same time, the compressed second spring rod 414 rebounds and drives the yarn pressing plate 47 to move towards the direction of the baffle 42, further clamping one side of the yarn pressing plate 47 and achieving an effective clamping and fixing effect on the yarn pressing plate 47. By designing two groups of yarn pressing plates 47, when one group of yarn pressing plates 47 is worn, the other group of yarn pressing plates 47 can continue to work, and the worn yarn pressing plate 47 can be replaced in time, avoiding the need for shutdown operation when replacing the yarn pressing plate 47 and affecting the work efficiency.

[0035] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-mentioned exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.

Claims

1. A yarn pressing device for a warp knitting machine, characterized in that: It comprises a support plate (1), the lower end of the support plate (1) is symmetrically connected to a mounting cover (2), the inner cavities of the two mounting covers (2) are jointly provided with a rotation adjustment mechanism (3), and the rotation adjustment mechanism (3) is connected to a yarn pressing mechanism (4); The rotation adjustment mechanism (3) comprises a driving motor (31) installed in the inner cavity of a mounting cover (2); the output end of the driving motor (31) is connected to a rotating shaft (32); one end of the rotating shaft (32) passes through the mounting cover (2) and is connected to a yarn pressing mechanism (4); one side of the yarn pressing mechanism (4) is connected to a supporting shaft (33); one end of the supporting shaft (33) passes through another mounting cover (2) and extends to its inner cavity; the inner cavity of the mounting cover (2) is provided with a bearing seat (34) rotatably connected to the supporting shaft (33); the outer side of the supporting shaft (33) is provided with a ratchet (35); the inner cavity of the mounting cover (2) is provided with a first fixed shaft (36); the outer side of the first fixed shaft (36) is rotatably connected to an active ratchet (37) meshing with the ratchet (35).

2. A yarn pressing device for a warp knitting machine according to claim 1, characterized in that: The yarn pressing mechanism (4) comprises a base plate (41) and two yarn pressing plates (47); the two sides of the base plate (41) are respectively connected to the rotating shaft (32) and the supporting shaft (33); the first plug plate (43) and the second plug plate (44) are installed at both ends of the base plate (41); one end of each yarn pressing plate (47) is provided with a slot (48); the slot (48) is plugged into the first plug plate (43) and the second plug plate (44); one end of the base plate (41) is provided with a baffle (42); one end of each second plug plate (44) is provided with a second installation groove (413); and the inner cavity of each second installation groove (413) is provided with a clamping assembly.

3. A yarn pressing device for a warp knitting machine according to claim 2, characterized in that: The clamping assembly comprises a second spring rod (414) installed in the inner cavity of the second installation groove (413), one end of the second spring rod (414) is connected to a pressing plate (415), and one side of the pressing plate (415) is in contact with the yarn pressing plate (47).

4. The yarn pressing device of a warp knitting machine according to claim 2, characterized in that: A first T-shaped slot (45) is provided on one side of the first plug plate (43), a second T-shaped slot (46) is provided on one side of the second plug plate (44), and two T-shaped blocks (49) are connected to the right side of the inner cavity of the slot (48) and are respectively slidably connected to the first T-shaped slot (45) and the second T-shaped slot (46).

5. The yarn pressing device of a warp knitting machine according to claim 4, characterized in that: A first installation groove (410) is provided on one side of the second plug plate (44); a first spring rod (411) is installed in the inner cavity of the first installation groove (410); a pressing block (412) is connected to one end of the first spring rod (411); and one side of the pressing block (412) fits with a T-shaped block (49) in the inner cavity of the first T-shaped groove (45).

6. The yarn pressing device of a warp knitting machine according to claim 1, characterized in that: A second fixed shaft (38) is installed in the inner cavity of the installation cover (2); a non-return pawl (39) is rotatably connected to the outer side of the second fixed shaft (38); the non-return pawl (39) is meshed with the ratchet (35); a fixed disk (310) is installed on the outer side of the second fixed shaft (38); a torsion spring (311) is inserted between the fixed disk (310) and the non-return pawl (39).

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