Spun silk filament drafting mechanism

Abstract

The utility model relates to the field of textile technology relates to a silk spinning fine filament drafting mechanism, include: including frame and drafting mechanism. Frame contains mounting bracket, assembly seat, rotary base and the input rod with furrow, assembly seat, rotary base and input rod are equipped with three groups from top to bottom; The drafting mechanism contains the fixed arm on mounting bracket, the rotary arm of its end rotatory assembly, and the rotary arm is equipped with pressure roller module one, two, three from top to bottom, and three groups of pressure roller module correspond three groups of input rod respectively. The utility model two groups of input rod rotation speed approach on upside, can arrange silk order and prevent overstretching breakage, the rotation speed of the lower input rod is big, and the stable drafting force is provided by reasonable speed difference, and the multiple fine filaments are drawn into single, avoid the problem that the single rotation speed is difficult to consider arrangement and stretching, three groups of pressure roller module adhesion degree is adjustable, and the input rod furrow can increase friction and prevent skidding, ensure fine filament stable delivery, improve the drafting stability and effect.

Description

Technical Field

[0001] This utility model relates to the field of textile technology, and specifically to a silk spinning filament drawing mechanism. Background Technology

[0002] As a high-end textile raw material, the drafting process for converting multi-strand filaments into single strands is a crucial step in the production of silk filaments, determining the uniformity, strength, and subsequent weaving performance of the finished yarn. This requires the coordinated action of the input rod and pressure roller module to achieve an orderly connection between preliminary preparation, stable conveying, and core stretching. It is essential to avoid tangling of multiple filaments and prevent filament breakage due to uneven tension during stretching. This places extremely high demands on the stage adaptability, specification compatibility, and structural stability of the drafting mechanism. However, current equipment used for silk filament drafting still suffers from several technical deficiencies in practical applications, making it difficult to meet the demands of efficient industrial production and high-quality yarn preparation. Specific problems are as follows: Existing drafting mechanisms mostly employ a simplified design with a single high-speed input rod and a fixed pressure roller, or two sets of input rods with equal speeds, lacking a clear division of labor in each stage. If drafting relies solely on a single high-speed input rod, multiple strands of filament are prone to breakage due to a sudden increase in tension during feeding. If the speeds of the two sets of input rods are close, although filament breakage can be reduced, an effective speed difference cannot be formed, making it difficult for multiple strands of filament to be fully stretched and merged into a single strand, requiring additional equipment for secondary drafting, resulting in process redundancy. If the speed difference between the two sets is too large, it can cause fiber damage to the filaments due to sudden changes in tensile force during the transition stage. In addition, the input rods are mostly smooth surfaces, resulting in insufficient friction with the filaments, which can easily lead to slippage and fluctuations in conveying speed. Traditional drafting mechanisms typically employ integrated, fixed pressure roller modules. The contact area and clamping force between the pressure roller and the input rod cannot be flexibly adjusted. When producing silk filaments of different diameters, the fixed pressure roller cannot meet the diverse needs. When the filament diameter is too fine, the excessive contact area of ​​the pressure roller can lead to excessive local pressure and cause filament breakage. When the filament diameter is too thick, the insufficient contact area results in uneven transmission of drafting force, leading to thick filaments that are not fully drawn. If it is necessary to switch production specifications, the entire pressure roller module must be disassembled and replaced with a suitable model. Furthermore, multiple sets of pressure roller spare parts must be stocked, significantly increasing equipment investment and downtime costs. This makes it difficult to meet the flexible production needs of small batches and multiple varieties. Utility Model Content

[0003] This invention provides a silk spinning filament drawing mechanism to solve the problems of the prior art.

[0004] The objective of this utility model can be achieved through the following technical solution: a silk spinning filament drawing mechanism, comprising: The frame includes a mounting frame, an assembly base disposed on the mounting frame, a rotating base disposed in the assembly base, and an input rod rotatably disposed in the rotating base. The input rod is provided with grooves. The assembly base, the rotating base, and the input rod are arranged in three sets from top to bottom. The drawing mechanism includes a fixed arm mounted on the mounting frame and a rotating arm rotatably mounted at the end of the fixed arm. The rotating arm is provided with a pressure roller module one, a pressure roller module two, and a pressure roller module three in sequence from top to bottom. The pressure roller module one, pressure roller module two, and pressure roller module three are respectively arranged corresponding to three sets of input rods.

[0005] In a further improvement, a wire guide mechanism is provided at the upper end of the mounting base located on the upper side. The wire guide mechanism includes a fixing frame provided at the upper end of the mounting base and a wire guide nozzle provided on the fixing frame. The wire guide nozzle is provided in correspondence with the groove.

[0006] In a further improvement, a support mechanism is provided between the middle and lower assembly seats. The support mechanism includes a support seat on the mounting frame and a support plate on the support seat. The support plate is correspondingly provided with the second pressure roller module.

[0007] In a further improvement, the first pressure roller module includes a connector located at the upper end of the rotating arm and a first pressure roller assembly rotatably mounted on the connector. The second pressure roller module includes a second connector fixed to the middle of the rotating arm, a second pressure roller assembly rotatably mounted on the second connector, an adjustment component slidably mounted at the lower end of the rotating arm, and a limiting conveyor belt sleeved between the second pressure roller assembly and the adjustment component. The third pressure roller module includes a second sliding seat slidably mounted at the front end of the rotating arm, a third connector located at the front end of the second sliding seat, and a third pressure roller assembly rotatably mounted on the third connector.

[0008] In a further improvement, the adjustment assembly includes a sliding seat, a connecting rod, and a tensioning member. The sliding seat is slidably mounted on the lower end of the rotating arm, and an adjustment waist hole is provided through the side end of the sliding seat. A locking hole is provided correspondingly on the side end of the rotating arm. A locking bolt is internally threaded into the locking hole, and the threaded part of the locking bolt is slidably adapted to the adjustment waist hole. The connecting rod is fixed below the sliding seat, and the tensioning member is located at the end of the connecting rod and abuts against the inner side of the limiting conveyor belt.

[0009] In a further improvement, the upper end of the sliding seat 2 is provided with an adjustment waist hole 2, and the upper side of the front end of the rotating arm is provided with a corresponding locking hole 2. The locking hole 2 is internally threaded with a locking bolt 2, and the threaded part of the locking bolt 2 is slidably adapted to the adjustment waist hole 2.

[0010] In a further improvement, the limiting conveyor belt is an elastic rubber belt, the inner side of which is in close contact with the outer circumference of the pressure roller assembly and the front end of the support member, and the contact surface is provided with anti-slip texture.

[0011] Compared with the prior art, the present invention has the following beneficial effects: 1. The two sets of input rods on the upper side of this utility model have similar rotation speeds, which can prevent the filaments from being overstretched and broken due to excessive speed difference in the initial conveying stage. They only play the role of organizing the strands. The input rods on the lower side have a larger rotation speed, which can provide a stable stretching force for multiple strands of filaments through a reasonable speed difference, and gradually stretch and merge multiple strands of filaments into a single strand. This ensures the stretching effect and avoids the filament breakage caused by a sudden increase in speed difference, thus avoiding the problem that single-speed stretching cannot take into account both organization and stretching. 2. The three sets of pressure roller modules of the drawing mechanism of this utility model correspond one-to-one with the three sets of input rods of the frame, and the pressure rollers can be flexibly adjusted in terms of fit through the rotating arm to ensure that the filament can be stably pressed and conveyed at each set of input rods; the grooves of the input rods can also enhance the friction with the filament, prevent the filament from slipping during conveying, further improve the stability of the drawing process, and reduce the problem of uneven drawing caused by slippage. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of the rotating arm of this utility model when it is open; Figure 3 This is a side view of the present invention in operation; Figure 4 This is a schematic diagram of the frame structure of this utility model; Figure 5 This is a schematic diagram of the drawing mechanism of this utility model.

[0013] In the diagram, 10 is the frame; 101 is the mounting bracket; 102 is the assembly base; 103 is the rotating base; 104 is the input rod; 1041 is the groove; 105 is the wire guide mechanism; 1051 is the fixed frame; 1052 is the wire guide nozzle; 106 is the support mechanism; 1061 is the support base; 1062 is the support plate; 20 is the drafting mechanism; 201 is the fixed arm; 202 is the rotating arm; 203 is the pressure roller module one; 2031 is the connecting piece; 2032 is the pressure roller wheel group one; and 204 is the pressure roller. Module 2; 2041, Connector 2; 2042, Pressure Roller Set 2; 2043, Adjustment Component; 20431, Sliding Seat 1; 204311, Adjustment Waist Hole 1; 20432, Connecting Rod; 20433, Support Component; 20434, Locking Bolt 1; 2044, Limiting Conveyor Belt; 205, Pressure Roller Module 3; 2051, Sliding Seat 2; 20511, Adjustment Waist Hole 2; 2052, Connector 3; 2053, Pressure Roller Set 3; 2054, Locking Bolt 2. Detailed Implementation

[0014] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0015] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0016] The following is a description of the embodiments and appendices. Figures 1-5 The technical solution of this utility model will be further described below.

[0017] Example 1 A silk filament drawing mechanism, comprising: The frame 10 includes a mounting frame 101, an assembly base 102 disposed on the mounting frame 101, a rotating base 103 disposed within the assembly base 102, and an input rod 104 rotatably disposed within the rotating base 103. The input rod 104 is provided with grooves 1041. The assembly base 102, the rotating base 103, and the input rod 104 are arranged in three sets from top to bottom. The stretching mechanism 20 includes a fixed arm 201 mounted on the mounting frame 101 and a rotating arm 202 rotatably mounted at the end of the fixed arm 201. The rotating arm 202 is provided with a pressure roller module 1 203, a pressure roller module 204 and a pressure roller module 3 205 from top to bottom. The pressure roller module 1 203, the pressure roller module 204 and the pressure roller module 3 205 are respectively arranged corresponding to three sets of input rods 104.

[0018] like Figures 1-5 As shown, in actual use, the three sets of input rods 104 are each connected to an external transmission mechanism. The parameters of each transmission mechanism are adjusted according to the number of strands of the silk filament to be drawn. The two upper sets of transmission mechanisms have similar rotational speeds, while the lower set adjusts its rotational speed according to the number of strands. Next, the multiple strands of silk filament to be drawn are fed into the frame 10 from the upper side. First, the filament is brought into contact with the grooves 1041 of the first set of input rods 104 on the upper side. Then, the pressure roller module 2... Under the pressing action of 03, the filament is smoothly conveyed to the second set of input rods 104 as the input rod 104 rotates. Since the rotation speed of the second set of input rods 104 is close to that of the first set, the filament is only initially sorted at this stage to avoid tangling between strands. Then it continues to be conveyed to the third set of input rods 104 on the lower side. Since the rotation speed of the third set of input rods 104 is significantly greater than that of the first two sets, under the pressing of the pressure roller module 205 and the high-speed traction of the input rod, the multiple strands of filament are gradually stretched and finally drawn from multiple strands into a single strand.

[0019] The two sets of input rods 104 on the upper side of this utility model rotate at similar speeds, which can prevent the filaments from being overstretched and broken due to excessive speed difference in the initial conveying stage. They only serve to organize the strands. The input rods 104 on the lower side rotate at a higher speed, which can provide a stable stretching force for multiple strands of filaments through a reasonable speed difference, gradually stretching and merging multiple strands of filaments into a single strand. This ensures the stretching effect and avoids filament breakage caused by a sudden increase in speed difference, thus avoiding the problem that single-speed stretching cannot take into account both organization and stretching. The three sets of pressure roller modules of the drawing mechanism 20 correspond one-to-one with the three sets of input rods 104 of the frame 10, and the pressure rollers can be flexibly adjusted in terms of fit through the rotating arm 202 to ensure that the filament can be stably pressed and conveyed at each set of input rods; the grooves 1041 of the input rods 104 can also enhance the friction with the filament, prevent the filament from slipping during conveying, further improve the stability of the drawing process, and reduce the problem of uneven drawing caused by slippage.

[0020] As a further preferred embodiment, a wire guide mechanism 105 is provided on the upper end of the mounting base 102 located on the upper side. The wire guide mechanism 105 includes a fixing frame 1051 provided on the upper end of the mounting base 102 and a wire guide nozzle 1052 provided on the fixing frame 1051. The wire guide nozzle 1052 is provided corresponding to the groove 1041.

[0021] Specifically, the guide nozzle 1052 of the guide mechanism 105 precisely corresponds to the groove 1041 of the upper input rod 104. When multiple strands of silk filaments are fed in, the guide nozzle 1052 constrains the filaments and guides them precisely into the groove 1041 of the input rod 104. This ensures that the filaments are always conveyed under the limit of the groove, providing a stable precondition for the subsequent pressing and fitting of the pressure roller module 203, and reducing uneven stretching force or filament slippage caused by feeding deviation.

[0022] As a further preferred embodiment, the first pressure roller module 203 includes a connector 2031 disposed at the upper end of the rotating arm 202 and a first pressure roller assembly 2032 rotatably mounted on the connector 2031. The second pressure roller module 204 includes a second connector 2041 fixed to the middle of the rotating arm 202, a second pressure roller assembly 2042 rotatably mounted on the second connector 2041, an adjustment component 2043 slidably mounted at the lower end of the rotating arm 202, and a limiting conveyor belt 2044 sleeved between the second pressure roller assembly 2042 and the adjustment component 2043. Module 3 205 includes a sliding seat 2051 slidably mounted on the front end of the rotating arm 202, a connecting member 3 2052 disposed on the front end of the sliding seat 2051, and a pressure roller assembly 3 2053 rotatably mounted on the connecting member 3 2052. A support mechanism 106 is provided between the middle and lower mounting seats 102. The support mechanism 106 includes a support seat 1061 disposed on the mounting frame 101 and a support plate 1062 disposed on the support seat 1061. The support plate 1062 is correspondingly disposed with the pressure roller module 204.

[0023] Specifically, pressure roller modules 1 203, 204, and 3 205 correspond one-to-one with three sets of input rods 104, forming a continuous coordination of initial conveying, sorting and guiding, and core drafting. Pressure roller module 1 203 achieves stable feeding of multiple strands of fine filaments by rotating the assembled pressure roller wheel group 1 2032, in conjunction with the upper low-speed input rod, reducing conveying friction. Pressure roller module 2 204 relies on the limiting conveyor belt 2044 to pre-press and sort the fine filaments of the middle input rod, avoiding inter-strand entanglement. Pressure roller module 3 205, with the position adjustability of the sliding seat 2 2051, adapts to the drafting requirements of the lower high-speed input rod, covering the entire conversion process from multiple strands of fine filaments to a single strand. Drafting can be completed without additional equipment, making it suitable for industrial integrated production. The sliding seat 2051 of the pressure roller module 205 can slide along the rotating arm 202. Its position can be quickly fixed by adjusting the waist hole and locking bolt. The contact area between the pressure roller assembly 2053 and the lower input rod can be adjusted according to the drafting requirements of different wire diameters. For thicker wires, the contact area is increased to avoid excessive local pressure during high-speed drafting, which could lead to wire breakage. For thinner wires, the contact area is reduced to ensure uniform transmission of drafting force. Simultaneously, the adjusting component 2043 of the pressure roller module 204 can finely adjust the tension of the limiting conveyor belt 2044 to adapt to the processing requirements of different strand counts. Production specifications can be switched without replacing the entire pressure roller module, reducing equipment investment costs for multi-variety production.

[0024] As a further preferred embodiment, the adjustment assembly 2043 includes a sliding seat 20431, a connecting rod 20432, and a tensioning member 20433. The sliding seat 20431 is slidably mounted on the lower end of the rotating arm 202, and its side end is provided with an adjustment waist hole 204311. The side end of the rotating arm 202 is provided with a corresponding locking hole 2021. A locking bolt 20434 is threadedly connected to the locking hole 2021, and the threaded part of the locking bolt 20434 is slidably adapted to the adjustment waist hole 204311. The connecting rod 20432 is fixed below the sliding seat 20431, and the tensioning member 20433 is provided at the end of the connecting rod 20432 and abuts against the inner side of the limiting conveyor belt 2044.

[0025] Specifically, the adjusting component 2043, through the sliding engagement of the sliding seat 20431 and the adjusting waist hole 204311, can precisely adjust the tension of the tensioning component 20433 on the limiting conveyor belt 2044. Loosening the locking bolt 20434 and pushing the sliding seat 20431 to slide up and down along the rotating arm 202 can drive the tensioning component 20433 to move synchronously through the connecting rod 20432. For silk multi-strand filaments of different diameters, the tension of the limiting conveyor belt 2044 can be flexibly adjusted. When the filament diameter is small, the conveyor belt is loosened to avoid excessive compression that could cause the filaments to break; when the filament diameter is large, the conveyor belt is tightened to ensure that the filaments do not slip or deviate during conveying.

[0026] As a further preferred embodiment, the upper end of the sliding seat 2051 is provided with an adjustment waist hole 20511, and the upper side of the front end of the rotating arm 202 is provided with a corresponding locking hole 2022. The locking hole 2022 is internally threaded with a locking bolt 2054, and the threaded part of the locking bolt 2054 is slidably adapted to the adjustment waist hole 20511.

[0027] As a further preferred embodiment, the limiting conveyor belt 2044 is an elastic rubber belt, the inner side of which is in close contact with the outer peripheral surface of the pressure roller assembly 2042 and the front end of the tensioning member 20433, and the contact surface is provided with anti-slip texture.

[0028] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A silk spinning filament drawing mechanism, characterized in that, include: The frame includes a mounting frame, an assembly base disposed on the mounting frame, a rotating base disposed in the assembly base, and an input rod rotatably disposed in the rotating base. The input rod is provided with grooves. The assembly base, the rotating base, and the input rod are arranged in three sets from top to bottom. The drawing mechanism includes a fixed arm mounted on the mounting frame and a rotating arm rotatably mounted at the end of the fixed arm. The rotating arm is provided with a pressure roller module one, a pressure roller module two, and a pressure roller module three in sequence from top to bottom. The pressure roller module one, pressure roller module two, and pressure roller module three are respectively arranged corresponding to three sets of input rods.

2. The silk spinning filament drawing mechanism according to claim 1, characterized in that, A wire guide mechanism is provided at the upper end of the mounting base located on the upper side. The wire guide mechanism includes a fixing frame provided at the upper end of the mounting base and a wire guide nozzle provided on the fixing frame. The wire guide nozzle is provided in correspondence with the groove.

3. The silk spinning filament drawing mechanism according to claim 1, characterized in that, A support mechanism is provided between the middle and lower assembly seats. The support mechanism includes a support seat on the mounting frame and a support plate on the support seat. The support plate is correspondingly provided with the second pressure roller module.

4. The silk spinning filament drawing mechanism according to claim 1, characterized in that, The first pressure roller module includes a connector located at the upper end of the rotating arm and a first pressure roller assembly rotatably mounted on the connector. The second pressure roller module includes a second connector fixed to the middle of the rotating arm, a second pressure roller assembly rotatably mounted on the second connector, an adjustment component slidably mounted at the lower end of the rotating arm, and a limiting conveyor belt sleeved between the second pressure roller assembly and the adjustment component. The third pressure roller module includes a second sliding seat slidably mounted at the front end of the rotating arm, a third connector located at the front end of the second sliding seat, and a third pressure roller assembly rotatably mounted on the third connector.

5. The silk spinning filament drawing mechanism according to claim 4, characterized in that, The adjustment assembly includes a sliding seat, a connecting rod, and a tensioning member. The sliding seat is slidably mounted on the lower end of the rotating arm, and an adjustment waist hole is provided through the side end of the sliding seat. A locking hole is provided correspondingly on the side end of the rotating arm. A locking bolt is internally threaded into the locking hole, and the threaded part of the locking bolt is slidably adapted to the adjustment waist hole. The connecting rod is fixed below the sliding seat, and the tensioning member is located at the end of the connecting rod and abuts against the inner side of the limiting conveyor belt.

6. The silk spinning filament drawing mechanism according to claim 4, characterized in that, The upper end of the sliding seat 2 is provided with an adjustment waist hole 2, and the upper side of the front end of the rotating arm is provided with a corresponding locking hole 2. The locking hole 2 is internally threaded with a locking bolt 2, and the threaded part of the locking bolt 2 is slidably adapted to the adjustment waist hole 2.

7. The silk spinning filament drawing mechanism according to claim 5, characterized in that, The limiting conveyor belt is an elastic rubber belt, whose inner side is in close contact with the outer circumference of the pressure roller assembly and the front end of the support member, and the contact surface is provided with anti-slip texture.

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