A yarn guide device for producing a spunbond nonwoven fabric

Abstract

The present application relates to a kind of silk thread flow guide devices for production of spunbond nonwoven fabric, including mounting bracket and the web curtain conveyor belt being arranged below mounting bracket, a plurality of swing components are rotationally arranged in mounting bracket, drive assembly is arranged in the side of mounting bracket, swing component includes upper swing piece and lower swing piece, drive assembly drives upper swing piece and lower swing piece to reciprocating swing left and right, the angle between upper swing piece and lower swing piece always remains unchanged;The present application solves the problem that the angle between the swing piece and the fixed swing piece can be changed in the production process of prior art, but the airflow direction will not change, so it will lead to uncontrollable when laying, the position where the tow cannot reach swing piece is relatively sparse, and uneven situation is prone to occur when laying.

Description

A yarn guiding device for spunbond nonwoven fabric production Technical Field

[0001] This invention relates to the field of spunbond nonwoven fabric production equipment technology, specifically to a yarn guiding device for spunbond nonwoven fabric production. Background Technology

[0002] Spunbond nonwoven fabric is produced by extruding and stretching polymers to form continuous filaments, which are then laid into a web. The web is then bonded together through self-bonding, thermal bonding, chemical bonding, or mechanical reinforcement to become a nonwoven fabric. Current technologies mostly use tubular airflow for stretching and mechanical oscillators for filament separation, relying on the high-speed impact of the filaments against the high-speed oscillating oscillators to create a dispersion effect. However, the oscillators in existing equipment are typically configured with one fixed oscillator and one oscillating oscillator. These two oscillators cannot oscillate together, and the angle between them changes during production, while the airflow direction remains constant. This leads to uncontrollable filament laying, resulting in sparser areas where the filaments cannot reach the oscillators, and uneven laying. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of existing technologies by providing a yarn guiding device for spunbond nonwoven fabric production. The device includes a mounting frame and a web-forming conveyor belt disposed below the mounting frame. Several swinging components are rotatably arranged inside the mounting frame, and a driving component is disposed on one side of the mounting frame. The swinging components include an upper swing plate and a lower swing plate, which solves the problem of uncontrollable yarn laying and uneven laying that exists in existing technologies.

[0004] The technical solution of the present invention is as follows:

[0005] A yarn guiding device for spunbond nonwoven fabric production includes a mounting frame and a web forming conveyor belt disposed below the mounting frame. Several swinging components are rotatably arranged inside the mounting frame, and a driving component is disposed on one side of the mounting frame. Each swinging component includes an upper swing plate and a lower swing plate. The driving component drives the upper swing plate and the lower swing plate to swing back and forth, and the angle between the upper swing plate and the lower swing plate remains constant.

[0006] As a preferred embodiment, the upper and lower swing plates are fixedly connected by a connector, and both the upper and lower swing plates are provided with through holes.

[0007] As a preferred embodiment, the included angle between the upper and lower swing plates is 35° to 45°.

[0008] As a preferred embodiment, the connector has a material discharge hole at the top, rotating shafts are fixedly installed on both sides of the connector, a connecting block is fixedly connected to the tail end of the rotating shaft, a rotating rod is fixedly connected to one end of the connecting block, and a limit block is fixedly installed at the tail end of the rotating rod.

[0009] As a preferred embodiment, the drive assembly includes a servo motor fixedly mounted on one side of the mounting bracket and a sliding connecting rod driven by the servo motor. The front end of the servo motor is provided with a crank, which is connected to the sliding connecting rod via a slider.

[0010] As a preferred embodiment, the sliding connecting rod has several connecting holes corresponding to the rotating rod, and the connecting holes are connected to the rotating rod.

[0011] As a preferred embodiment, the drive assembly further includes a limiting groove fixedly disposed on the front of the mounting bracket for the sliding of the slide rod.

[0012] As a preferred embodiment, an air blowing assembly is also provided on the other side of the mounting frame. The air blowing assembly includes an air pump fixedly mounted on the other side of the mounting frame and an air cover sleeved on the upper and lower swing plates. The air cover is connected to the air pump through an air supply pipe.

[0013] As a preferred embodiment, the mounting bracket has an opening a corresponding to the rotating shaft.

[0014] As another preferred embodiment, the mounting bracket has an opening b on the back corresponding to the gas supply pipe.

[0015] This invention includes a swing assembly. The upper and lower swing plates in the swing assembly are fixedly connected by a connector, so that when the drive assembly drives the swing assembly to swing, the upper and lower swing plates can swing together, ensuring that the angle between the upper and lower swing plates remains constant. This allows the yarn to maintain contact with the upper and lower swing plates during the falling and laying process, making the falling position of the yarn controllable. This solves the problem in the prior art where the angle between the swingable and fixed swing plates changes during the production process, but the airflow direction does not change, which leads to uncontrollable yarn laying, sparse areas where the yarn cannot reach the swing plates, and uneven laying. This invention greatly improves the quality of the product.

[0016] The present invention is equipped with a driving component. The sliding connecting rod in the driving component cooperates with the rotating rod under the drive of the servo motor, which can simultaneously drive all the swing components to swing synchronously. The synchronization is good, which further ensures the uniformity of the silk thread laying.

[0017] The present invention is provided with an air blowing component, which blows air onto the surfaces of the upper and lower swing plates that are in contact with the yarn. This causes the yarn to be suspended to a certain extent from the contact surfaces between the upper and lower swing plates under the action of the airflow, which greatly reduces the wear caused by the upper and lower swing plates under long-term friction with the yarn.

[0018] In summary, this invention has the advantages of uniform yarn laying effect, easy wear and tear of parts and long service life, high efficiency and good linkage effect between components, and is suitable for the field of spunbond nonwoven fabric production equipment technology. Attached Figure Description

[0019] The invention will be further described below with reference to the accompanying drawings:

[0020] Figure 1 is a schematic diagram of the yarn guiding device for the production of spunbond nonwoven fabric.

[0021] Figure 2 is a schematic diagram of the location structure of the drive component;

[0022] Figure 3 is a schematic diagram of the swing assembly;

[0023] Figure 4 is a schematic diagram of the state in which the driving component drives the swinging component to swing to the left.

[0024] Figure 5 is a schematic diagram of the state in which the driving component drives the swinging component to swing to the right.

[0025] Figure 6 is a schematic diagram showing the state in which the blowing component suspends the thread during the swinging process of the swinging component.

[0026] Figure 7 is an enlarged view of point A in Figure 6. Detailed Implementation

[0027] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0028] Example 1

[0029] As shown in Figures 1 to 7, a yarn guiding device for spunbond nonwoven fabric production includes a mounting frame 1 and a web forming conveyor belt 2 disposed below the mounting frame 1. Several swing components 3 are rotatably disposed inside the mounting frame 1. A drive component 4 is disposed on one side of the mounting frame 1. The swing component 3 includes an upper swing plate 31 and a lower swing plate 32. The drive component 4 drives the upper swing plate 31 and the lower swing plate 32 to swing back and forth, and the angle between the upper swing plate 31 and the lower swing plate 32 remains constant. The servo motor 41 is activated, driving the crank 43 to rotate. The crank 43, in conjunction with the slider 44, drives the sliding connecting rod 42 to reciprocate along the limiting groove 46. The sliding connecting rod 42, in turn, drives the rotating rod 38 connected within it to swing left and right. During this swing, the rotating rod 38 drives the rotating shaft 36, connected via the connecting block 37, to swing synchronously. This, in turn, drives the upper swing plate 31 and the lower swing plate 32 to swing synchronously. The yarn falls under the influence of the tubular airflow, passes through the through hole 34, and contacts the upper and lower swing plates 31 and 32 successively. Guided by the upper and lower swing plates 31 and 32, the yarn is evenly laid on the lower mesh conveyor belt 2 and output. This solves the problem in existing technologies where the angle between the swinging and fixed swing plates changes during production, but the airflow direction remains constant. This leads to uncontrollable yarn laying, resulting in sparse areas where the yarn cannot reach the swing plates and uneven laying.

[0030] As shown in Figure 3, the upper swing plate 31 and the lower swing plate 32 are fixedly connected by a connector 33. The connector 33 ensures that the upper swing plate 31 and the lower swing plate 32 are fixedly connected, allowing the drive assembly 4 to drive the upper swing plate 31 and the lower swing plate 32 to swing synchronously. This ensures that the angle between the upper swing plate 31 and the lower swing plate 32 remains constant during the swing process. This avoids the situation where the angle between the upper swing plate 31 and the lower swing plate 32 changes, but the airflow direction remains unchanged. In such cases, if the swing angle of the lower swing plate 32 is too large, the thread may not be able to reach the lower swing plate 32 during the fall, causing uncontrollable thread laying. Laying the thread in areas where it cannot reach the lower swing plate 32 will result in sparse laying and unevenness.

[0031] As shown in Figure 7, the included angle between the upper helical plate 31 and the lower helical plate 32 is between 35° and 45°. Depending on production needs, the included angle between the upper helical plate 31 and the lower helical plate 32 can be adjusted to achieve the most uniform yarn laying angle, thereby improving product quality.

[0032] As shown in Figures 3 and 7, the connector 33 has a material drop hole 35 at its top, and the connector 34 has rotating shafts 36 fixedly installed on both sides. The tail end of the rotating shaft 36 is fixedly connected to a connecting block 37, and one end of the connecting block 37 is fixedly connected to a rotating rod 38. The tail end of the rotating rod 38 is fixedly provided with a limiting block 39. Under the action of the tubular airflow, the wire passes through the material drop hole 35 and falls onto the upper swing plate 31, then bounces back onto the lower swing plate 32, and falls onto the lower mesh conveyor belt 2 under the guidance of the lower swing plate 32. The rotating rod 38 is driven by the sliding connecting rod 42 in the drive assembly 4 to achieve reciprocating swing, thereby driving the rotating shaft 36 to rotate, so that the upper swing plate 31 and the lower swing plate 32 can swing back and forth synchronously, with good linkage and strong synchronization. The limiting block 39 ensures that the rotating rod 38 can be stably connected to the sliding connecting rod 42.

[0033] As shown in Figures 2, 4 and 5, the drive assembly 4 includes a servo motor 41 fixedly mounted on one side of the mounting bracket 1 and a slide rail connecting rod 42 driven by the servo motor 41. The front end of the servo motor 41 is provided with a crank 43, and the crank 43 is connected to the slide rail connecting rod 42 through a slider 44. The servo motor 41 drives the crank 43 to rotate, and the crank 43, in conjunction with the slider 44, drives the sliding connecting rod 42 to reciprocate along the limiting groove 46. The sliding connecting rod 42 drives the rotating rod 38, which in turn drives the rotating shaft 36 to rotate the upper swing plate 31 and the lower swing plate 32 synchronously. When the servo motor 41 rotates counterclockwise, the sliding connecting rod 42 moves forward and simultaneously drives the upper swing plate 31 and the lower swing plate 32 to swing to the left. When the servo motor 41 rotates clockwise, the sliding connecting rod 42 moves backward and simultaneously drives the upper swing plate 31 and the lower swing plate 32 to swing to the right. During the synchronous swing of the upper swing plate 31 and the lower swing plate 32, the angle between them remains unchanged, which allows the yarn to be evenly laid on the mesh curtain conveyor belt 2, improving product quality. At the same time, the sliding connecting rod 42, driven by the servo motor 41, can simultaneously drive all the swing components 4 to swing synchronously, with good synchronization, further ensuring the uniformity of the yarn laying.

[0034] As shown in Figure 2, the sliding connecting rod 42 has several connecting holes 45 corresponding to the rotating rod 38, and the connecting holes 45 are connected to the rotating rod 38. The sliding connecting rod 42 is connected to the rotating rod 38 through the connecting holes 45. When the sliding connecting rod 42 reciprocates, it drives the rotating rod 38 to swing left and right, which has good linkage and further improves the performance.

[0035] As shown in Figure 2, the drive assembly 4 also includes a limiting groove 46 fixedly disposed on the front of the mounting bracket 1 for the sliding connecting rod 42 to slide. The limiting groove 46 provides limiting support for the sliding connecting rod 42 when the crank 43 and the slider 44 cooperate to drive the sliding connecting rod 42 to achieve reciprocating motion, ensuring its smooth and stable movement.

[0036] As shown in Figure 2, the mounting bracket 1 has an opening a11 corresponding to the rotating shaft 36. The opening a11 allows the rotating shaft 36 to be stably mounted on the mounting bracket 1 and to maintain stable and smooth rotation.

[0037] Example 2

[0038] As shown in Figures 1, 2, 4, 5, 6, and 7, the components that are the same as or corresponding to those in Embodiment 1 are marked with the same reference numerals as in Embodiment 1. For simplicity, only the differences from Embodiment 1 will be described below. The difference between Embodiment 2 and Embodiment 1 is as follows:

[0039] Both the upper swing plate 31 and the lower swing plate 32 are provided with through holes 34. By providing through holes 34, the air pump 51 can blow air into the air cover 52 through the air supply pipe 53 and blow the airflow out through the through holes 34 onto the surfaces of the upper swing plate 31 and the lower swing plate 32 that are in contact with the silk thread, so that the silk thread can be kept suspended in a certain position.

[0040] On the other side of the mounting frame 1, an air blowing assembly 5 is also provided. The air blowing assembly 5 includes an air pump 51 fixedly mounted on the other side of the mounting frame 1 and an air cover 52 sleeved on the upper swing plate 31 and the lower swing plate 32. The air cover 52 is connected to the air pump 51 through an air supply pipe 53. The air pump 51 blows air into the air cover 52 through the air supply pipe 53, so that the airflow blows air onto the surfaces of the upper swing plate 31 and the lower swing plate 32 that are in contact with the thread. This causes the thread to be suspended to a certain extent from the contact surfaces between the upper swing plate 31 and the lower swing plate 32 under the action of the airflow, which greatly reduces the wear caused by the upper swing plate 31 and the lower swing plate 32 under long-term friction with the thread.

[0041] An opening b12 is provided on the back of the mounting bracket 1 corresponding to the gas supply pipe 53. The opening b12 enables the gas supply pipe 53 to be installed stably and avoids displacement.

[0042] In the description of this invention, it should be understood that the terms "front and back", "left and right", 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 invention and simplifying the description, and do not indicate or imply that the device or component 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 the invention.

[0043] Of course, those skilled in the art should understand that the term "a" should be understood as "at least one" or "one or more". That is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple. The term "a" should not be understood as a limitation on the quantity.

[0044] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art under the technical guidance of the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A yarn guiding device for spunbond nonwoven fabric production, comprising a mounting frame (1) and a web-forming conveyor belt (2) disposed below the mounting frame (1), characterized in that, The mounting frame (1) is rotatably equipped with several swing components (3). A drive component (4) is provided on one side of the mounting frame (1). The swing component (3) includes an upper swing plate (31) and a lower swing plate (32). The drive component (4) drives the upper swing plate (31) and the lower swing plate (32) to swing synchronously. The angle between the upper swing plate (31) and the lower swing plate (32) remains constant. An air blowing component (5) is also provided on the other side of the mounting frame (1). The air blowing component (5) includes an air pump (51) fixedly installed on the other side of the mounting frame (1) and an air cover (52) sleeved on the upper swing plate (31) and the lower swing plate (32). The air cover (52) is connected to the air pump (51) through an air supply pipe (53). The upper swing plate (31) and the lower swing plate (32) are fixedly connected by a connector (33). Both the upper swing plate (31) and the lower swing plate (32) have through holes (34).

2. The yarn guiding device for spunbond nonwoven fabric production according to claim 1, characterized in that, The included angle between the upper swing piece (31) and the lower swing piece (32) is 35°~45°.

3. The yarn guiding device for spunbond nonwoven fabric production according to claim 1, characterized in that, The connector (33) has a material drop hole (35) at the top. Rotating shafts (36) are fixedly installed on both sides of the connector (33). A connecting block (37) is fixedly connected to the tail end of the rotating shaft (36). A rotating rod (38) is fixedly connected to one end of the connecting block (37). A limit block (39) is fixedly installed at the tail end of the rotating rod (38).

4. The yarn guiding device for spunbond nonwoven fabric production according to claim 3, characterized in that, The drive assembly (4) includes a servo motor (41) fixedly mounted on one side of the mounting bracket (1) and a slide rail connecting rod (42) driven by the servo motor (41). The front end of the servo motor (41) is provided with a crank (43), and the crank (43) is connected to the slide rail connecting rod (42) through a slider (44).

5. The yarn guiding device for spunbond nonwoven fabric production according to claim 4, characterized in that, The sliding connecting rod (42) has several connecting holes (45) corresponding to the rotating rod (38), and the connecting holes (45) are connected to the rotating rod (38).

6. The yarn guiding device for spunbond nonwoven fabric production according to claim 4, characterized in that, The drive assembly (4) also includes a limiting groove (46) fixedly disposed on the front of the mounting bracket (1) for the sliding connecting rod (42) to slide.

7. The yarn guiding device for spunbond nonwoven fabric production according to claim 3, characterized in that, The mounting bracket (1) has an opening a (11) corresponding to the rotating shaft (36).

8. The yarn guiding device for spunbond nonwoven fabric production according to claim 1, characterized in that, The mounting bracket (1) has an opening b (12) on its back corresponding to the gas supply pipe (53).

Images