Warp knitting machine yarn buffering device capable of reducing yarn broken ends

Abstract

The utility model relates to the technical field of warp knitting machines, in particular to a warp knitting machine yarn buffering device capable of reducing yarn broken ends, which comprises a warp knitting frame arranged on a warp knitting machine, a limiting component used for limiting yarns is arranged at the top of the warp knitting frame, and symmetrical guide frames are arranged on one side of the warp knitting frame. A buffer frame is movably arranged between the two guide frames, fibers on the surfaces of yarns can be effectively prevented from falling off through the circular curved surfaces of the warp knitting rollers during knitting, the quality of later-stage yarn knitting is improved, certain pressure can be generated when the yarns move, the pressure can be transmitted to the mounting plate, the mounting plate can be pressed downwards to move after being subjected to the pressure, and the yarn knitting quality is improved. When the yarn is woven, the spring telescopic rod and the connecting block are extruded, the connecting block drives the moving block to move after being extruded, and the moving block also extrudes the buffer spring, so that the pressure of the yarn during weaving is gradually reduced, the large jumping of the yarn during weaving is prevented, and the conditions of broken ends and breakage of the yarn are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of warp knitting machines, in particular to a yarn buffer device for warp knitting machines which can reduce yarn breakage. Background Art

[0002] A knitted fabric is formed by using one or several groups of parallel arranged yarns to form loops on all the working needles of the warp feeding machine at the same time. This method is called warp knitting and the fabric is called warp knitted fabric. With the continuous development of science and technology, the existing warp knitting machines have been able to achieve intelligent and automated.

[0003] A Chinese patent (authorization announcement number CN218842516U) discloses a yarn buffer device for a warp knitting machine to prevent yarn breakage, comprising a bottom plate, a mounting body vertically fixedly mounted at the center of the upper side of the bottom plate, a mounting groove opened on the upper side of the mounting body, a slider movably mounted inside the mounting groove, a connecting rod arranged inside the mounting groove and threadedly connected to the slider, a first spring fixedly connected to the lower side of the slider and the other end of the first spring fixedly connected to the bottom wall of the mounting groove, and a buffer body vertically fixedly mounted at the center of the bottom wall of the mounting groove. In the above scheme, the buffer block performs buffering by sliding the extrusion block inside the extrusion groove to squeeze the second spring to deform, and at the same time, the connecting rod can be screwed off the slider to replace the fixed blocks of different specifications to meet the needs of use. In this way, multi-level buffering is generated for the yarn, which avoids the yarn from breaking and rupturing due to large jumps during use.

[0004] In the above device, the yarn is placed on a fixed block for movement. During the sliding process, the yarn will rub against the surface of the fixed block. This friction will cause the fibers on the surface of the yarn to gradually wear and eventually fall off. As the fibers continue to fall off, the quality of the yarn delivered to the weaving link will be affected, and various quality problems will easily occur during the weaving process. Utility Model Content

[0005] In view of the above problems, a yarn buffer device for a warp knitting machine is provided to reduce yarn breakage. The circular curved surface of the warp knitting roller can effectively prevent the fibers on the surface of the yarn from falling off during weaving, thereby improving the quality of the subsequent yarn weaving.

[0006] In order to solve the problems of the prior art, the utility model provides a yarn buffer device for a warp knitting machine for reducing yarn breakage, comprising a warp knitting frame arranged on the warp knitting machine, a limiting assembly for limiting the yarn is arranged on the top of the warp knitting frame, a symmetrical guide frame is arranged on one side of the warp knitting frame, a buffer frame is movably arranged between two of the guide frames, a buffer assembly is movably arranged inside the buffer frame, a mounting plate is arranged on the top of the buffer assembly, and a warp knitting roller for reducing yarn wear is rotatably arranged on the top of the mounting plate.

[0007] Preferably, the buffer assembly includes a sleeve rod symmetrically arranged inside the buffer frame, and moving blocks are movably arranged on the outside of both ends of the sleeve rod. A buffer spring is sleeved on the outside of the sleeve rod, one end of the buffer spring is connected to the inner wall of the buffer frame, and the other end of the buffer spring is connected to one side of the moving block. A connecting block is rotatably arranged on the top of the moving block, and the other end of the connecting block is rotatably connected to the bottom of the mounting plate.

[0008] Preferably, symmetrical spring telescopic rods are further provided inside the buffer frame, and the movable ends of the two spring telescopic rods are connected to the bottom of the mounting plate.

[0009] Preferably, both outer walls of the buffer frame are provided with sliding rods, a sliding groove for the sliding rods to move is provided inside the guide frame, and a fixing block is provided at one end of the sliding rods.

[0010] Preferably, a pull rod is movably provided inside the fixed block, a slider is provided at one end of the pull rod, the slider is slidably provided on the outside of the slider, a return spring is provided on the outside of the slider, one end of the return spring is connected to one side of the slider, the other end of the return spring is connected to one side of the fixed block, a positioning pin is provided on the other side of the slider, and the outer wall of the guide frame is provided with a plurality of positioning holes adapted to the positioning pins.

[0011] Preferably, the limiting assembly includes a limiting frame arranged on the top of the warp knitting frame, the limiting frame is internally rotatably provided with a guide roller for guiding the yarn, the internal thread of the limiting frame is connected with a screw rod, the bottom of the screw rod is rotatably provided with a lower pressure plate, both sides of the limiting frame are provided with limiting grooves for the movement of the lower pressure plate, and the bottom of the lower pressure plate is rotatably provided with a plurality of limiting rollers for limiting the yarn.

[0012] Compared with the prior art, the utility model has the following beneficial effects: the circular curved surface of the warp knitting roller can effectively prevent the fibers on the surface of the yarn from falling off during weaving, thereby improving the quality of yarn weaving in the later stage; the yarn will have a certain pressure when moving, and the pressure will be transmitted to the mounting plate, and the mounting plate will move downward after being pressed, thereby squeezing the spring telescopic rod and the connecting block; the connecting block will drive the moving block to move after being squeezed, and the moving block will also squeeze the buffer spring, thereby gradually reducing the pressure of the yarn during weaving, preventing the yarn from jumping greatly during weaving, thereby reducing the situation of yarn breakage and fracture.

[0013] The slider is driven to move by pulling the pull rod, so that the positioning pin is away from the positioning hole on the side wall of the guide frame. At this time, the slide rod can be pulled to move in the slide groove inside the guide frame, thereby driving the buffer frame and the warp knitting roller to move. After moving to a suitable angle, the pull rod is released, and the positioning pin will be inserted into the corresponding socket under the action of the reset spring. At this time, the yarn can be woven at different angles. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The present invention is a schematic diagram of the overall structure of a yarn buffer device for a warp knitting machine for reducing yarn breakage;

[0015] Figure 2 The present invention is a schematic diagram of the structure of a yarn buffer device of a warp knitting machine for reducing yarn breakage from a bottom-up perspective;

[0016] Figure 3 The present invention is a structural schematic diagram of a guide frame in a yarn buffer device of a warp knitting machine for reducing yarn breakage;

[0017] Figure 4 The present invention is a schematic diagram of the structure of a warp knitting roller in a yarn buffer device of a warp knitting machine for reducing yarn breakage;

[0018] Figure 5 yes Figure 4 A schematic diagram of the enlarged structure at A in the middle;

[0019] Figure 6 The invention discloses a structural schematic diagram of a buffer component in a yarn buffer device of a warp knitting machine for reducing yarn breakage.

[0020] The numbers in the figure are: 1. Warp knitting frame; 2. Limiting frame; 3. Guide frame; 4. Buffer frame; 5. Warp knitting roller; 6. Screw; 7. Lower pressure plate; 8. Limiting roller; 9. Guide roller; 10. Slider; 11. Fixed block; 12. Sliding rod; 13. Reset spring; 14. Pull rod; 15. Locating pin; 16. Mounting plate; 17. Connecting block; 18. Moving block; 19. Spring telescopic rod; 20. Sleeve rod; 21. Buffer spring. DETAILED DESCRIPTION

[0021] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0022] like Figures 1 to 6As shown, the utility model provides: a yarn buffer device for a warp knitting machine for reducing yarn breakage, comprising a warp knitting frame 1 arranged on the warp knitting machine, a limiting assembly for limiting the yarn is arranged on the top of the warp knitting frame 1, a symmetrical guide frame 3 is arranged on one side of the warp knitting frame 1, a buffer frame 4 is movably arranged between the two guide frames 3, a buffer assembly is movably arranged inside the buffer frame 4, a mounting plate 16 is arranged on the top of the buffer assembly, and a warp knitting roller 5 for reducing yarn wear is rotatably arranged on the top of the mounting plate 16.

[0023] By using the circular curved surface characteristics of the warp knitting roller 5, the fibers on the yarn surface can be effectively prevented from falling off during the weaving process, thereby improving the quality of the subsequent yarn weaving and the quality of the finished product. The buffer component is then used to reduce the pressure on the yarn during weaving and prevent the yarn from jumping significantly during weaving.

[0024] Figure 6 As shown, the buffer assembly includes a sleeve rod 20 symmetrically arranged inside the buffer frame 4, and moving blocks 18 are movably arranged on the outside of both ends of the sleeve rod 20. A buffer spring 21 is sleeved on the outside of the sleeve rod 20, one end of the buffer spring 21 is connected to the inner wall of the buffer frame 4, and the other end of the buffer spring 21 is connected to one side of the moving block 18. A connecting block 17 is rotatably arranged on the top of the moving block 18, and the other end of the connecting block 17 is rotatably connected to the bottom of the mounting plate 16.

[0025] The moving block 18 is driven by the connecting block 17, and the moving block 18 will squeeze the buffer spring 21 during the movement. The elastic characteristics of the buffer spring 21 can effectively reduce the pressure on the yarn during the weaving process, and prevent the yarn from jumping due to excessive pressure during weaving. The jumping phenomenon can easily cause the yarn to break or break, thereby affecting the weaving quality and production efficiency.

[0026] like Figure 6 As shown, symmetrical spring telescopic rods 19 are further provided inside the buffer frame 4 , and the movable ends of the two spring telescopic rods 19 are connected to the bottom of the mounting plate 16 .

[0027] The spring telescopic rod 19 cooperates with the moving block 18 and the buffer spring 21 to further reduce the jumping of the yarn during weaving.

[0028] like Figure 3 Figure 5 As shown, both outer walls of the buffer frame 4 are provided with slide bars 12 , a slide groove for the slide bars 12 to move is provided inside the guide frame 3 , and a fixing block 11 is provided at one end of the slide bar 12 .

[0029] By pulling the slide bar 12 to move in the slide groove inside the guide frame 3, the buffer frame 4 and the warp knitting roller 5 are driven to move, so that the yarns can be woven at different angles.

[0030] like Figure 3 Figure 5 As shown, a pull rod 14 is movably provided inside the fixed block 11, a slider 10 is provided at one end of the pull rod 14, the slider 10 is slidably provided on the outside of the slide rod 12, a return spring 13 is provided on the outside of the slide rod 12, one end of the return spring 13 is connected to one side of the slider 10, the other end of the return spring 13 is connected to one side of the fixed block 11, a positioning pin 15 is provided on the other side of the slider 10, and a plurality of positioning holes matched with the positioning pin 15 are provided on the outer wall of the guide frame 3.

[0031] The slider 10 is driven to move by pulling the pull rod 14, so that the positioning pin 15 is away from the positioning hole on the side wall of the guide frame 3, which facilitates the movement of the buffer frame 4 and the warp knitting roller 5. After moving to a suitable angle, the pull rod 14 is released, and the positioning pin 15 is inserted into the corresponding socket under the action of the reset spring 13, thereby preventing the buffer frame 4 from sliding at will.

[0032] like Figure 2 As shown, the limiting assembly includes a limiting frame 2 arranged on the top of the warp knitting frame 1, the limiting frame 2 is internally rotatably provided with a guide roller 9 for guiding the yarn, the limiting frame 2 is internally threadedly connected with a screw rod 6, the bottom of the screw rod 6 is rotatably provided with a lower pressure plate 7, both sides of the limiting frame 2 are provided with limiting grooves for the movement of the lower pressure plate 7, and the bottom of the lower pressure plate 7 is rotatably provided with a plurality of limiting rollers 8 for limiting the yarn.

[0033] By rotating the screw 6, the lower pressure plate 7 is driven to move, and the lower pressure plate 7 will move downward along the movable grooves on both sides of the guide frame 3. At the same time, the limiting rollers 8 at the bottom of the lower pressure plate 7 will also move downward until they come into contact with the guide rollers 9. The use of multiple limiting rollers 8 can prevent multiple yarns from being entangled during weaving.

[0034] Working principle: When the yarn needs to be weaved, first pass one end of the yarn through the guide roller 9 and the limit frame 2, and then place it above the warp knitting roller 5. At this time, the screw 6 can be rotated to drive the lower pressure plate 7 to move, and the lower pressure plate 7 will move downward along the moving grooves on both sides of the guide frame 3. At the same time, the limit roller 8 at the bottom of the lower pressure plate 7 will also move downward until it contacts the guide roller 9. Multiple limit rollers 8 can be used to prevent multiple yarns from being entangled during weaving. At this time, the warp knitting machine can be started to drive the yarn to move, and the yarn will slide on the warp knitting roller 5. The circular curved surface of the warp knitting roller 5 can effectively prevent the fibers on the surface of the yarn from falling off during weaving, thereby improving the quality of yarn weaving in the later stage. The yarn will have a certain pressure when moving, and these pressures will be transmitted to the mounting plate 16, and the mounting plate 16 will be under pressure. After that, it will be pressed down and moved, thereby squeezing the spring telescopic rod 19 and the connecting block 17. After being squeezed, the connecting block 17 will drive the moving block 18 to move, and the moving block 18 will also squeeze the buffer spring 21, thereby gradually reducing the pressure of the yarn during weaving, preventing the yarn from jumping greatly during weaving, thereby reducing the situation of yarn breakage and fracture. When it is necessary to adjust the angle of yarn weaving, pull the pull rod 14 to drive the slider 10 to move, so that the positioning pin 15 is away from the positioning hole on the side wall of the guide frame 3. At this time, the slide bar 12 can be pulled to move in the slide groove inside the guide frame 3, thereby driving the buffer frame 4 and the warp knitting roller 5 to move. After moving to a suitable angle, release the pull rod 14. Under the action of the reset spring 13, the positioning pin 15 will be inserted into the corresponding jack. At this time, the yarn can be woven at different angles.

[0035] The above embodiments only express a yarn buffer device or several implementation methods of the utility model for reducing yarn breakage of a warp knitting machine, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model shall be based on the attached claims.

[0036] In the present invention, unless otherwise clearly stipulated and limited, for example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, for ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

Claims

1. A yarn buffer device for a warp knitting machine for reducing yarn breakage, characterized in that: The invention comprises a warp knitting frame (1) arranged on a warp knitting machine, wherein a limiting assembly for limiting the position of yarn is arranged on the top of the warp knitting frame (1), a symmetrical guide frame (3) is arranged on one side of the warp knitting frame (1), a buffer frame (4) is movably arranged between two guide frames (3), a buffer assembly is movably arranged inside the buffer frame (4), a mounting plate (16) is arranged on the top of the buffer assembly, and a warp knitting roller (5) for reducing yarn wear is rotatably arranged on the top of the mounting plate (16).

2. A yarn buffer device for a warp knitting machine for reducing yarn breakage according to claim 1, characterized in that: The buffer assembly comprises a sleeve rod (20) symmetrically arranged inside the buffer frame (4), and movable blocks (18) are movably arranged outside both ends of the sleeve rod (20). A buffer spring (21) is sleeved outside the sleeve rod (20), and one end of the buffer spring (21) is connected to the inner wall of the buffer frame (4), and the other end of the buffer spring (21) is connected to one side of the movable block (18). A connecting block (17) is rotatably arranged on the top of the movable block (18), and the other end of the connecting block (17) is rotatably connected to the bottom of the mounting plate (16).

3. A yarn buffer device for a warp knitting machine for reducing yarn breakage according to claim 1, characterized in that: Symmetrical spring telescopic rods (19) are also provided inside the buffer frame (4), and the movable ends of the two spring telescopic rods (19) are connected to the bottom of the mounting plate (16).

4. A yarn buffer device for a warp knitting machine for reducing yarn breakage according to claim 1, characterized in that: Sliding rods (12) are provided on both side outer walls of the buffer frame (4), a sliding groove for the sliding rod (12) to move is provided inside the guide frame (3), and a fixing block (11) is provided at one end of the sliding rod (12).

5. A yarn buffer device for a warp knitting machine for reducing yarn breakage according to claim 4, characterized in that: A pull rod (14) is movably arranged inside the fixed block (11), a slider (10) is arranged at one end of the pull rod (14), the slider (10) is slidably arranged outside the slider (12), a return spring (13) is sleeved on the outside of the slider (12), one end of the return spring (13) is connected to one side of the slider (10), the other end of the return spring (13) is connected to one side of the fixed block (11), a positioning pin (15) is arranged on the other side of the slider (10), and the outer wall of the guide frame (3) is provided with a plurality of positioning holes adapted to the positioning pin (15).

6. A yarn buffer device for a warp knitting machine for reducing yarn breakage according to claim 1, characterized in that: The limiting assembly comprises a limiting frame (2) arranged on the top of the warp knitting frame (1); a guide roller (9) for guiding the yarn is rotatably arranged inside the limiting frame (2); a screw rod (6) is internally threadedly connected to the limiting frame (2); a lower pressure plate (7) is rotatably arranged at the bottom of the screw rod (6); limiting grooves for the lower pressure plate (7) to move are provided on both sides of the limiting frame (2); and a plurality of limiting rollers (8) for limiting the yarn are rotatably arranged at the bottom of the lower pressure plate (7).

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