A filament splitting mechanism of a spinning device

Abstract

The present invention discloses a wire splitting mechanism for a spinning device. The key points of the technical solution are as follows: it includes a wire splitter and a drafting device. The wire splitter includes a wire splitting base, a front wire splitting assembly, and a rear wire splitting assembly. Multiple groups of front wire splitting assemblies and rear wire splitting assemblies are provided, and they are all arranged along the length direction of the wire splitting base. Each group of front wire splitting assemblies includes at least five adjacent front wire splitting plates in sequence, and the depths of two adjacent front wire splitting plates in the same group are prime numbers to each other. A first through groove is formed between two adjacent front wire splitting plates. Each group of rear wire splitting assemblies includes at least five adjacent rear wire splitting plates in sequence, and the depths of two adjacent rear wire splitting plates in the same group are prime numbers to each other. A second through groove is formed between two adjacent rear wire splitting plates. The rear wire splitting plates and the front wire splitting plates are arranged at intervals in sequence. This wire splitting mechanism can improve the diffusion effect during the spinning process, enhance the transverse strength of the fabric surface, and improve the quality of the finished fabric.

Description

Technical Field

[0001] The present invention relates to a wire splitting mechanism, and more specifically, to a wire splitting mechanism of a spinning device. Background Art

[0002] In the process of non-woven fabric processing, spinning is a necessary process. After the fiber bundle after spinning passes through slit drafting, it is necessary to disperse the dense fiber bundle and lay it on a mesh curtain for conveying.

[0003] For example, the existing patent CN217104275U for a wire splitting device of a slit drafting production line and the wire splitting device of a spunbond non-woven fabric of the company's prior application CN202064138U adopt the wall attachment flow effect. Through the wire splitting device, the wires in each wire sheet diffuse in the direction perpendicular to the machine direction under the action of air pressure, reducing the density difference, and finally falling on the collection mesh curtain. Its effect is equivalent to having two drafting devices laying wires one after another along the machine running direction, thereby improving the uniformity of web laying.

[0004] As the market's demand for product quality becomes higher and higher, it is necessary to further update textile equipment to improve product quality and meet market demand. Summary of the Invention

[0005] Aiming at the deficiencies of the existing technology, the purpose of the present invention is to provide a wire splitting mechanism of a spinning device, which can improve the diffusion effect in the spinning process, enhance the transverse strength of the fabric surface, and improve the quality of the finished fabric.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A wire splitting mechanism of a spinning device includes a wire splitter and a drafting device. The wire splitter includes a wire splitting base, a front wire splitting component, and a rear wire splitting component. Multiple groups of the front wire splitting component and the rear wire splitting component are provided, and they are all arranged along the length direction of the wire splitting base;

[0007] Each group of the front wire splitting component includes at least five adjacent front wire splitting plates in sequence, and the depths of two adjacent front wire splitting plates in the same group are prime numbers to each other. A first through groove is formed between two adjacent front wire splitting plates;

[0008] Each group of the rear wire splitting component includes at least five adjacent rear wire splitting plates in sequence, and the depths of two adjacent rear wire splitting plates in the same group are prime numbers to each other. A second through groove is formed between two adjacent rear wire splitting plates;

[0009] The rear wire splitting plates and the front wire splitting plates are arranged at intervals in sequence.

[0010] In summary, the present invention has the following beneficial effects: 1. The post-filament splitting assembly and the pre-filament splitting assembly with an alternating concave and convex structure form adjacent co-prime numbers. When the air flow passes through the filament splitter, the wall attachment effect will occur. And due to the different depths, the adjacent diffusion effects are slightly different from each other, so that the time and intensity of inducing the fibers to spiral will also be slightly different. When the fibers are laid on the wire mesh and intertwined, differences will appear, thereby enhancing the transverse strength of the fabric surface.

[0011] 2. There are no sudden change values between adjacent two groups and between two adjacent ones in the same group, so that the depth can maintain a stable change, so that when the fibers are intertwined, there will be differences but there will be no large sparseness, thus effectively maintaining the transverse strength of the fabric surface.

[0012] 3. The concave holes are discretely arranged on the post-filament splitting plate to break the laminar layer on the wall surface, so that different filament splitting effects are formed between the fibers in the adjacent depressions during the fiber filament splitting process. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic structural diagram of a spinning device;

[0014] Figure 2 It is a schematic structural diagram of a filament splitter and a draft device;

[0015] Figure 3 It is a three-dimensional structural diagram of a filament splitter;

[0016] Figure 4 It is a side view of a filament splitter;

[0017] Figure 5 It is a schematic structural diagram of a liftable filament splitter.

[0018] Reference numerals: 1. Filament splitter; 11. Filament splitting base; 12. Pre-filament splitting assembly; 121. Pre-filament splitting plate; 122. First through groove; 13. Post-filament splitting assembly; 131. Post-filament splitting plate; 132. Second through groove; 14. Concave hole; 2. Draft device; 3. Lifting member; 31. Guide plate; 4. Second lifting hydraulic cylinder. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The present invention will be further described in detail below with reference to the drawings and embodiments. The same components are denoted by the same reference numerals. It should be noted that the terms "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the drawings, and the terms "bottom surface" and "top surface", "inner" and "outer" refer to the directions towards or away from the geometric center of a specific component respectively.

[0020] Refer to Figures 1 to 5As shown in the figure, to achieve the above object, the present invention provides the following technical solution: a filament splitting mechanism of a spinning device, including a filament splitter 1 and a drafting device 2. The filament splitter 1 includes a filament splitting base 11, a front filament splitting assembly 12 and a rear filament splitting assembly 13. Multiple groups of front filament splitting assemblies 12 and rear filament splitting assemblies 13 are provided, and they are arranged along the length direction of the filament splitting base 11;

[0021] Each group of front filament splitting assemblies 12 includes at least five adjacent front filament splitting plates 121 in sequence, and the depths of two adjacent front filament splitting plates 121 in the same group are relatively prime to each other. A first through groove 122 is formed between two adjacent front filament splitting plates 121;

[0022] Each group of rear filament splitting assemblies 13 includes at least five adjacent rear filament splitting plates 131 in sequence, and the depths of two adjacent rear filament splitting plates 131 in the same group are relatively prime to each other. A second through groove 132 is formed between two adjacent rear filament splitting plates 131;

[0023] The rear filament splitting plates 131 and the front filament splitting plates 121 are arranged at intervals in sequence.

[0024] As Figure 4 shown, the depth is: taking the perpendicular line Y at the inlet of the filament splitter and the connecting line X of the lowest edges of the front filament splitting assembly and the rear filament splitting assembly. When the intersection point of X and Y is β, the depth of the rear filament splitting assembly is the distance between β and the rear filament splitting plate, and the depth of the front filament splitting assembly is the distance between β and the front filament splitting plate.

[0025] In the design of the present invention, 5 to 6 front filament splitting plates 121 are provided in each group of front filament splitting assemblies 12, and the depths of the 5 to 6 front filament splitting plates 121 in the same group are relatively prime to each other, that is, the depths of the front filament splitting plates 121 in this group are relatively prime to each other. Similarly, the depths of the rear filament splitting assemblies 13 in the same group are also relatively prime to each other. The adjacent relatively prime relationship is formed between the rear filament splitting assembly 13 and the front filament splitting assembly 12 with an uneven structure. When the air flow passes through the filament splitter 1, the wall attachment effect will be generated, and due to the different depths, the adjacent diffusion effects are slightly different from each other, so that the time and intensity of inducing the fiber to spiral will also be slightly different. When the fibers are laid on the mesh curtain and intertwined with each other, there will be differences, thereby enhancing the transverse strength of the fabric surface.

[0026] A number of concave holes 14 are provided on the side of the rear filament splitting plate 131 facing the front filament splitting plate 121.

[0027] The concave holes 14 are discretely arranged on the rear filament splitting plate 131 to break the laminar layer on the wall surface, so as to form different filament splitting effects between the fibers in the adjacent depressions during the fiber filament splitting process.

[0028] The principle is that due to the viscous effect of the air flow, after contacting the solid boundary, there will be a tendency to flow along the solid boundary, resulting in a macroscopic change in the flow direction of the fluid, and the phenomenon of the fluid flowing along the solid wall is called the wall attachment flow. However, during the process of the fluid flowing along the wall, due to the roughness of the wall, the fluid velocity near the wall at the microscopic level is very slow and presents a laminar flow. This kind of flow is too regular and is not conducive to the disorderly pushing of the air flow on the fibers, and thus is not conducive to the random fiber splitting. Therefore, it is necessary to break this boundary layer (laminar layer) near the wall and enhance the turbulent kinetic energy of the air flow near the wall, so as to enhance the effect of random fiber splitting.

[0029] The depths in the front fiber splitting components 12 and the rear fiber splitting components 13 of the same group are set to increase or decrease gradually;

[0030] The depths in the adjacent two groups of front fiber splitting components 12 are set to progress in the reverse direction. When the depth in the current group of front fiber splitting components 12 is set to increase, the depth in the adjacent rear group of front fiber splitting components 12 is set to decrease;

[0031] The depths in the adjacent two groups of rear fiber splitting components 13 are set to progress in the reverse direction. When the depth in the current group of rear fiber splitting components 13 is set to increase, the depth in the adjacent rear group of rear fiber splitting components 13 is set to decrease.

[0032] The depths of the adjacent two front fiber splitting plates 121 in the adjacent two groups of front fiber splitting components 12 are relatively prime numbers and are set to progress;

[0033] The depths of the adjacent two rear fiber splitting plates 131 in the adjacent two groups of rear fiber splitting components 13 are relatively prime numbers and are set to progress.

[0034] Each group of front fiber splitting components 12 includes an odd number of front fiber splitting plates 121, and with the middle front fiber splitting plate 121 as the maximum or minimum value, it is set to decrease or increase towards both sides;

[0035] Each group of rear fiber splitting components 13 includes an odd number of front fiber splitting plates 121, and with the middle rear fiber splitting plate 131 as the maximum or minimum value, it is set to decrease or increase towards both sides.

[0036] Based on the above depth arrangement order, an embodiment that can satisfy both is given: 3.1, 3.2, 3.3, 3.5, 3.7, 3.5, 3.3, 3.2, 3.1, 3.2, 3.3, 3.5, 3.7...

[0037] Among them, five are in a group or nine are in a group. When in a group of five, there is an increasing or decreasing situation within the same group, and when in a group of nine, there is a situation of increasing first and then decreasing within the same group.

[0038] Moreover, there are no mutated values between adjacent two groups and between two adjacent ones in the same group, enabling the depth to maintain a stable change. As a result, when the fibers are interwoven, there will be differences but no significant sparseness, effectively maintaining the transverse strength of the fabric surface.

[0039] It further includes a lifting member 3, a first lifting hydraulic cylinder, and a second lifting hydraulic cylinder 4. The first lifting hydraulic cylinder is used to drive the drafting device 2 to move up and down, and the second lifting hydraulic cylinder 4 is used to drive the wire splitting device 1 to move up and down.

[0040] Embodiment 1: A plurality of guide plates 31 extending in the height direction are arranged on the lifting member 3. The guide plates 31 are correspondingly arranged with the rear wire splitting plate 131. An included angle α is formed between the upper end of the rear wire splitting plate 131 and the upper end of the front wire splitting plate 121. When the second lifting hydraulic cylinder 4 drives the wire splitting device 1 to move upward, the guide plates 31 push the rear wire splitting plate 131 to move, causing the included angle α to change.

[0041] The lifting member 3 is only a lifting plate, and the guide plates 31 are arranged on one side of the lifting plate.

[0042] The convexity of the guide plates 31 is set to increase upward along the height direction.

[0043] When the wire splitting device 1 moves upward, the included angle α gradually becomes smaller.

[0044] First, the drafting device 2 and the wire splitting device 1 can be driven by a hydraulic cylinder to move up and down along the height direction, thereby adjusting the distance between the drafting device 2 and the cold air box and the distance between the wire splitting device 1 and the wire mesh curtain.

[0045] As Figure 5 shown, when the second lifting hydraulic cylinder 4 drives the wire splitting device 1 to move up and down, the rear wire splitting plate 131 abuts against the guide plates 31. The included angle α is usually between 8° and 20°. When the wire splitting device 1 is at the highest position, the included angle α is between 8° and 10°. When the wire splitting device 1 is at the lowest position, the included angle α is between 18° and 20°. Since there is a hinge relationship between the rear wire splitting plate 131 and the wire splitting seat 11, there is elastic deformation between them. When the wire splitting plate descends from the highest position to the lowest position, since the outermost end of the rear wire splitting plate 131 abuts against the guide plates 31, it pushes the rear wire splitting plate 131 to deform, thereby changing the size of the α angle during the movement.

[0046] The design of this structure enables the angle at the high point position to be smaller than that at the low point position, so that the area generated by wire splitting is always maintained within a controllable range. Coupled with the air suction structure on the wire mesh curtain, the web laying is made more uniform.

[0047] Embodiment 2: The lifting member 3 includes a lifting plate, a transmission gear, a transmission chain, a third lifting hydraulic cylinder, and a rotating motor.

[0048] The third lifting hydraulic cylinder is used to drive the lifting plate to move up and down, and is started together with the second lifting hydraulic cylinder 4;

[0049] The rotating motor and the transmission gear are both installed on the lifting plate, and the transmission chain is installed in a loop on the two transmission gears;

[0050] The rotating motor is used to drive the transmission gear to rotate, thereby driving the transmission chain to move;

[0051] The guide plate includes multiple guide blocks and is respectively arranged on the transmission chain. When the lifting plate and the wire splitting device both move upward, and the rotating motor drives the transmission chain to move downward, the guide plate makes the included angle α smaller.

[0052] As Figure 5 shown, in the design of this structure, for further optimization, first, the third lifting hydraulic cylinder and the second lifting hydraulic cylinder lift up and down together, so that when the wire splitting device is at a high position, the fiber will not form an obstacle with the lifting plate during the falling process;

[0053] And during the synchronous lifting process, the rotating motor makes the transmission gear rotate (the transmission gear includes a driving gear and a driven gear, and the rotating motor is used to drive the driving gear to rotate, and the two gears and the transmission chain form a loop structure), so that the transmission chain moves, and the guide block in contact with the wire splitting plate changes, thereby changing the angle of the corresponding wire splitting plate.

[0054] In addition, the transmission chain is composed of multiple chain blocks, and one or more guide blocks are arranged on each chain block. During the rotation of the transmission chain, the unnecessary guide blocks will move to the other side of the transmission chain along with the transmission chain. Therefore, it can ensure that there is no obstruction between the lifting plate and the fiber, and the included angle α can be automatically adjusted while lifting.

[0055] The rear wire splitting plate 131 is arranged in an arc structure, and the included angles α formed between the rear wire splitting plates 131 and the front wire splitting plates 121 in the same group of rear wire splitting assemblies 13 are different.

[0056] Taking the highest point as an example, when there are five rear wire splitting plates 131 in the same group, the included angle α formed in the middle is 9.5°, the adjacent ones are 9.1° and 9.2° respectively, and the outermost ones are 8.7° and 8.8° respectively. Therefore, different differences are formed longitudinally during the interweaving, enhancing the strength of the fabric surface.

[0057] The included angle α formed between the rear wire splitting plates 131 and the front wire splitting plates 121 in the same group of rear wire splitting assemblies 13 is arranged in an increasing or decreasing manner along its arrangement direction.

[0058] Similarly, taking the highest point as an example, when there are five rear wire splitting plates 131 in the same group and the arrangement direction is 8.7°, 8.8°, 9.1°, 9.2° and 9.5°, the strength of the fabric surface can also be enhanced.

[0059] Furthermore, since the initial angles of the rear wire dividing plates 131 are different, the curvatures of the corresponding guide plates 31 are also different, so that the inclinations of the rear wire dividing plates 131 are different at the highest point and at the lowest point.

[0060] In order to ensure that the front wire splitting assembly and the rear wire splitting assembly remain in a mutually primed state during the lifting process, the outward protrusion of the guide plate is set in proportion to the vertical lifting height.

[0061] When the rear wire splitting assembly is at the first height, its depth is 3.1, 3.2, 3.3, 3.5, 3.7, 3.5, 3.3, 3.2, 3.1, 3.2, 3.3, 3.5;

[0062] When the rear wire-dividing assembly drops one height, its depth is 3.2, 3.3, 3.5, 3.7, 3.5, 3.3, 3.2, 3.1, 3.2, 3.3, 3.5, 3.7;

[0063] This allows them to always remain in a mutually prime state.

[0064] It is further explained that the lifting member is replaceable, so that it can cooperate with the rear wire separation component and the front wire separation component to form a non-interchangeable situation, thereby meeting the needs of users.

[0065] In addition, the function of the drafter 2 is as follows: the molten stream generated under the spinneret of the spinning box is cooled by the cold air box, and undergoes molecular directional crystallization while descending. The fiber enters the channel of the drafter 2 and is swept downward by the high-speed airflow in the channel. In this process, the speed of the airflow is higher than the speed of the fiber. Due to friction and whipping effects, the airflow exerts a greater stretching force on the fiber, thereby making the fiber thinner and thinner during movement.

[0066] The function of the wire separator 1 is as follows: since the drafting airflow is a high-speed jet, the fibers cannot be separated from the jet in time after coming out of the lower opening of the drafter 2, resulting in poor web laying effect. The wire separator 1 is based on a wall-attached drainage structure, which can induce the fibers to selectively separate from the jet area, thereby enhancing the cross-laying of the fibers on the net curtain and enhancing the strength uniformity of the fabric surface.

[0067] The above are only preferred embodiments of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A filament splitting mechanism for a spinning device, comprising a filament splitter (1) and a drafting device (2). The filament splitter (1) includes a filament splitting base (11), a front filament splitting assembly (12), and a rear filament splitting assembly (13). Multiple groups of the front filament splitting assembly (12) and the rear filament splitting assembly (13) are provided, and they are all arranged along the length direction of the filament splitting base (11). It is characterized in that: Each group of the front filament splitting assembly (12) includes at least five adjacent front filament splitting plates (121) in sequence, and the depths of two adjacent front filament splitting plates (121) within the same group are relatively prime to each other. A first through groove (122) is formed between two adjacent front filament splitting plates (121). Each group of the rear filament splitting assembly (13) includes at least five adjacent rear filament splitting plates (131) in sequence, and the depths of two adjacent rear filament splitting plates (131) within the same group are relatively prime to each other. A second through groove (132) is formed between two adjacent rear filament splitting plates (131). The rear filament splitting plates (131) and the front filament splitting plates (121) are arranged at intervals in sequence. The depths within the same group of the front filament splitting assembly (12) and the rear filament splitting assembly (13) are arranged in a gradually increasing or decreasing manner. The depths within two adjacent groups of the front filament splitting assembly (12) are arranged in a reverse progressive manner. When the depth within the current group of the front filament splitting assembly (12) is arranged in an increasing manner, the depth within the adjacent subsequent group of the front filament splitting assembly (12) is arranged in a decreasing manner. The depths within two adjacent groups of the rear filament splitting assembly (13) are arranged in a reverse progressive manner. When the depth within the current group of the rear filament splitting assembly (13) is arranged in an increasing manner, the depth within the adjacent subsequent group of the rear filament splitting assembly (13) is arranged in a decreasing manner.

2. The wire splitting mechanism of a spinning device according to claim 1, characterized in that: A number of concave holes (14) are provided on the side of the rear filament splitting plate (131) facing the front filament splitting plate (121).

3. The wire splitting mechanism of a spinning device according to claim 1, characterized in that: It further includes a lifting member (3), a first lifting hydraulic cylinder, and a second lifting hydraulic cylinder (4). The first lifting hydraulic cylinder is used to drive the drafting device (2) to move up and down, and the second lifting hydraulic cylinder (4) is used to drive the filament splitter (1) to move up and down. Multiple groups of guide plates (31) extending in the height direction are provided on the lifting member (3). The guide plates (31) are arranged corresponding to the rear filament splitting plates (131). An included angle α is formed between the upper end of the rear filament splitting plate (131) and the upper end of the front filament splitting plate (121). During the process of the second lifting hydraulic cylinder (4) driving the filament splitter (1) to move upward, the guide plates (31) push the rear filament splitting plates (131) to move, causing the included angle α to change.

4. The wire splitting mechanism of a spinning device according to claim 3, characterized in that: The convexity of the guide plates (31) is arranged to increase upward along the height direction. During the process of the filament splitter (1) moving upward, the included angle α gradually becomes smaller.

5. The wire splitting mechanism of a spinning device according to claim 4, characterized in that: The rear filament splitting plate (131) is arranged in an arc structure, and the included angles α formed between the rear filament splitting plates (131) and the front filament splitting plates (121) within the same group of the rear filament splitting assembly (13) are different from each other.

6. The wire splitting mechanism of a spinning device according to claim 5, characterized in that: The included angles α formed between the rear filament splitting plates (131) and the front filament splitting plates (121) within the same group of the rear filament splitting assembly (13) are arranged in an increasing or decreasing manner along their arrangement direction.

7. The wire splitting mechanism of a spinning device according to claim 3, characterized in that: The lifting member (3) includes a lifting plate, a transmission gear, a transmission chain, a third lifting hydraulic cylinder, and a rotating motor. The third lifting hydraulic cylinder is used to drive the lifting plate to move up and down and starts together with the second lifting hydraulic cylinder (4); The rotating motor and the transmission gears are both installed on the lifting plate, and the transmission chain is installed in a loop on the two transmission gears; The rotating motor is used to drive the transmission gears to rotate, thereby driving the transmission chain to move; The guide plate includes a plurality of guide blocks and is respectively arranged on the transmission chain. When the lifting plate and the wire splitting device both move upward and the rotating motor drives the transmission chain to move downward, the guide plate is caused to push the included angle α to become smaller.

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