A feeding duct and a carding machine

Abstract

The application discloses a feeding pipeline and a carding machine, relates to the technical field of feeding equipment, and discloses the shape design of a pipeline at a key position in a carding and combing flow. The design directly influences the running state of material into the equipment, thereby influencing the running efficiency of the carding machine and the sliver quality. The feeding pipeline comprises a pipe body, a cotton feeding box arranged at the bottom of the pipe body, and a flow control part arranged in the pipe body. The flow control part and the pipe wall of the pipe body form a diameter smaller than the inner diameter of the pipe body. The cotton flow is accelerated due to the reduction of the inner diameter of the pipe body. The lateral pressure of the pipe wall is reduced, the friction resistance between the cotton flow fibers and the metal is reduced, and the possibility of pipeline blockage by cotton is reduced. Meanwhile, between the bottom of the pipe body and the cotton feeding box, the flow velocity is reduced and the lateral pressure of the cotton flow is increased due to the increase of the inner diameter, so that the cotton flow can be better input into the cotton feeding box. The application can fully supplement the cotton feeding box while reducing the possibility of cotton blockage.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of feeding equipment, in particular to a feeding pipeline and a carding machine. BACKGROUND

[0002] The modern spinning process mainly includes the following steps: scutching, carding, pre-drawing, sliver rolling, combing, head-drawing, two-drawing, three-drawing, roving and spinning.

[0003] The scutching process and the carding process are connected by a pipeline, and the pipeline is used to convey raw materials between different devices by taking airflow as a carrier. The cotton material is transmitted through the conveying pipeline, the end of the conveying pipeline is connected to the scutching part, the scutching part provides the cotton material and outputs the airflow, and the airflow pushes the cotton material to be transmitted in the conveying pipeline. The bottom of the conveying pipeline is connected to a plurality of feeding boxes in the transmission direction, the feeding boxes are in one-to-one correspondence with the carding machines, and the feeding boxes are connected to the cotton feeding devices of the carding machines. When the cotton material is in the conveying pipeline and passes through the feeding boxes, part of the airflow flows into the feeding boxes at the same time, and the cotton material is driven to enter the feeding boxes, so that the cotton material is conveyed to the cotton feeding devices through the feeding boxes, and then the cotton material is transmitted to the carding machines through the cotton feeding devices.

[0004] However, it is found that the feeding boxes near the feeding position of the conveying pipeline are prone to be blocked during the production process. At this time, the machine needs to be stopped, and the blocked fabric in the connecting pipe is dug out through the opening provided on the conveying pipeline, which greatly affects the production speed. SUMMARY

[0005] In order to reduce the possibility of blocking the pipeline by the cotton material, the application provides a feeding pipeline and a carding machine.

[0006] In the first aspect, the application provides a feeding pipeline, which adopts the following technical scheme:

[0007] A feeding pipeline includes a pipe body, a connecting pipe arranged at the bottom of the pipe body,

[0008] Further comprising:

[0009] A flow control part is arranged in the pipe body and away from the feeding side, and a flow control cavity with a diameter smaller than the inner diameter of the pipe body is formed between the flow control part and the pipe wall of the pipe body, and the airflow is guided to the feeding box.

[0010] By adopting the technical scheme, the material is pushed by the airflow to move away from the feeding side after entering the pipe body, and part of the airflow drives part of the material to enter the feeding box when passing through the feeding box; when the airflow drives the material to move to a position away from the feeding side of the pipe body, the airflow drives the material to enter the flow control cavity; since the diameter of the flow control cavity is smaller than the inner diameter of the pipe body; when the pipe contracts, the flow rate increases and the static pressure decreases according to Bernoulli's equation; on the contrary, when the pipe expands, the flow rate decreases and the static pressure increases; when the material passes through the feeding box adjacent to the flow control cavity, the increased static pressure can timely and sufficiently drive the material to enter the feeding box, thereby improving the uniformity of the feeding of the pipe body to the feeding box, and reducing the possibility that the material at a position close to the feeding side of the pipe body is not timely transmitted in the direction away from the feeding side, thereby causing the feeding box adjacent to the feeding side to be blocked by the increased material in a short time.

[0011] Optionally, the flow control part is provided in plurality and arranged between two adjacent feeding boxes, and the diameter of the flow control cavity gradually decreases from the position close to the feeding side of the pipe body to the position away from the feeding side of the pipe body.

[0012] By adopting the technical scheme, the flow control parts are arranged at intervals, and a space for the material to spread is formed between adjacent flow control parts, so that the airflow can better drive the material to enter the feeding box.

[0013] Optionally, the flow control part is a flow control plate, the flow control plate extends along the horizontal direction, and the flow control plate is provided with a baffle close to the feeding side of the pipe body to restrict the material from passing through the side of the flow control plate away from the flow control cavity.

[0014] By adopting the technical scheme, the flow control plate is arranged along the horizontal direction, and the air pressure intensity of the airflow entering the flow control cavity instantaneously increases, so that the time for the material flow to be pushed by the airflow to pass through the flow control cavity is shortened.

[0015] Optionally, the flow control part extends downward along an arc trajectory from the position close to the feeding side of the pipe body to the position away from the feeding side of the pipe body.

[0016] By adopting the technical scheme, the flow control part is arranged along an arc, which can guide the material to enter the flow control cavity and reduce the amount of material remaining outside the flow control cavity.

[0017] Optionally, the flow control part is smoothly arranged and extends downwardly and obliquely from the position close to the feeding side of the pipe body to the position away from the feeding side of the pipe body.

[0018] By adopting the technical scheme, the possibility of material remaining outside the flow control cavity is reduced, and the time for the material to move in the flow control cavity is relatively short.

[0019] Optionally, the pipe body is provided with a fixing member, and the pipe body is detachably fixed with the flow control part through the fixing member.

[0020] Through the above technical scheme, the flow control part is detachably connected with the pipe body, and the production difficulty of the pipe body is reduced.

[0021] Optionally, the pipe body is formed with a communication port corresponding to the cotton feeding box, and the pipe body is detachably connected with a blocking plate for blocking the communication port.

[0022] Through the above technical scheme, after the blocking plate is opened, the material in the cotton feeding box can be dug through the communication port, and the difficulty of dredging the cotton feeding box when blockage occurs is reduced.

[0023] In a second aspect, the application provides a cotton carding machine adopting the following technical scheme:

[0024] A cotton carding machine, wherein the cotton feeding device of the cotton carding machine is in communication with the cotton feeding box.

[0025] Through the above technical scheme, the material in the pipe body is transmitted to the cotton feeding device of the cotton carding machine through the cotton feeding box, and the possibility of stopping the cotton carding process to dig the blockage material in the cotton feeding box is reduced.

[0026] In summary, the application has at least one of the following beneficial effects:

[0027] 1. The flow control part and the pipe body form a flow control cavity with a diameter smaller than the inner diameter of the pipe body, so that the pressure intensity of the airflow is increased, the amount of accumulated material near the feeding side of the pipe body is reduced, and the possibility of blockage of the cotton feeding box near the feeding side due to excessive material is reduced.

[0028] 2. The flow control part is detachably connected with the pipe body, and the production difficulty of the pipe body is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 is an external structure schematic diagram of the feeding pipe of the first embodiment of the application;

[0030] Figure 2 is an internal cross-sectional schematic diagram of the feeding pipe of the first embodiment of the application;

[0031] Figure 3 is Figure 2 is an enlarged view of part A;

[0032] Figure 4 is an internal cross-sectional schematic diagram of the feeding pipe of the second embodiment of the application;

[0033] Figure 5 is an internal cross-sectional schematic diagram of the feeding pipe of the third embodiment of the application;

[0034] Figure 6 is a whole structure schematic diagram of the cotton carding machine of the application.

[0035] 1, pipe body; 11, communication port; 12, blocking plate; 2, cotton feeding box; 3, flow control part; 31, gap space; 4, flow control cavity; 5, flow control plate; 51, baffle; 6, fixing part; 7, carding machine. DETAILED DESCRIPTION

[0036] The following will be described in detail with reference to the accompanying drawings. Figures 1-6 The application is further described in detail.

[0037] The application discloses a feeding pipe.

[0038] Embodiment one

[0039] Referring to Figure 1 The feeding pipe comprises a pipe body 1, which is made of metal material, for example, stainless steel. In the embodiment of the application, the pipe body 1 adopts a pipe with a square cross section of the pipe opening. In other embodiments, the pipe 1 can also adopt a pipe with a circular cross section of the pipe opening.

[0040] Referring to Figure 1 The feeding pipe further comprises cotton feeding boxes 2, the top of each cotton feeding box 2 is in a long tubular structure, and the long tubular structure of the top of each cotton feeding box 2 is connected and fixed to the bottom of the pipe body 1 and is in communication. There are multiple cotton feeding boxes 2, which are uniformly and spacedly arranged along the extension direction of the pipe body 1. In use, the scattered materials such as cotton, fibers and particles enter from one side of the pipe body 1, and at the same time, air flow is introduced, so that the materials are moved to the other side of the pipe body 1 by the air flow. The materials pass through the cotton feeding boxes 2 in the process of conveying, at this time, part of the air flow flows into the cotton feeding boxes 2, and when the air flow flows into the cotton feeding boxes 2, it drives part of the materials to enter the cotton feeding boxes 2, which is beneficial to the transmission and distribution of the materials to each cotton feeding box 2 through the pipe body 1.

[0041] Referring to Figure 1 However, the materials enter the cotton feeding boxes 2 by the air flow when the pipe body 1 transmits the materials, so in the process of transmission, the air pressure of the air flow is relatively high when the air flow transmits the materials to the cotton feeding boxes 2 close to the material feeding side of the pipe body 1, and the air pressure of the air flow continuously decreases as the air flow continuously moves away from the material feeding side of the pipe body 1 and distributes the materials. Then, the ability of the air flow to separate the materials from the cotton feeding boxes 2 away from the material feeding side of the pipe body 1 decreases, and the phenomenon that the materials away from the material feeding side of the pipe body 1 are not timely distributed and the distributed amount cannot reach the rated amount easily occurs. At this time, the transmission speed of the subsequent new materials entering the pipe body 1 away from the material feeding side decreases, and the materials are accumulated. When the materials enter the cotton feeding boxes 2 close to the material feeding side of the pipe body 1 by the air flow, the air pressure is high and the wind speed is high, so when the amount of materials close to the material feeding side of the pipe body 1 increases, the amount of materials entering the cotton feeding boxes 2 close to the material feeding side driven by the air flow increases, and at this time, the amount of materials entering the cotton feeding boxes 2 close to the material feeding side of the pipe body 1 in a short time is relatively large, which easily leads to the phenomenon of blockage.

[0042] Referring to Figure 2With Figure 3 The pipe wall of the pipe body 1 is provided with a communication port 11 corresponding to and adjacent to each feeding box 2. When the feeding box 2 is blocked, the machine can be stopped and the material in the feeding box 2 can be removed through the communication port 11. At the same time, the outer wall of the pipe body 1 is provided with a blocking plate 12 corresponding to the communication port 11. The blocking plate 12 is movably connected or hingedly connected to the pipe body 1, and a plurality of fixing bolts are arranged on the blocking plate 12. When the pipe body 1 is conveying material, the communication port 11 is blocked by the blocking plate 12, and the blocking plate 12 is fixed to the pipe body 1 by the fixing bolts. In other embodiments, the communication port can also be arranged on the side wall of the feeding box, and the blocking plate 12 and the feeding box 2 are connected by buckling. When the blocking plate 12 is opened, the feeding box 2 can be directly removed.

[0043] Referring to Figure 2 With Figure 3 In order to reduce the possibility of blocking of the feeding box 2, the feeding pipe further comprises a flow control part 3. The flow control part 3 is arranged on the inner wall of the pipe body 1 away from the feeding side, which can improve the strength of the air pressure away from the air flow of the feeding side of the pipe body 1. The pipe body 1 is provided with a fixing part 6 for fixing the flow control part 3. The fixing part 6 can be a rivet, a screw, a bolt or the like. When the flow control part 3 is installed, a side plate is integrally formed on the side of the flow control part 3 away from the feeding box 2, which is fitted to the inner wall of the pipe body 1. The pipe body 1 can adopt a multi-section structure during production, and the multi-section pipe body 1 is welded and fixed after the flow control part 3 is installed.

[0044] Referring to Figure 2 With Figure 3 The flow control part 3 is a plate-shaped structure, and the flow control part 3 extends downward along an arc trajectory, that is, the arc convex side of the flow control part 3 faces the direction of the feeding box 2, and the top of the flow control part 3 abuts against the top inner wall of the pipe body 1. Before the flow control part 3 is installed, the change of the air pressure intensity of the air flow in the pipe body 1 is checked. The detection points are arranged at multiple positions along the conveying direction of the pipe body 1 and are respectively located between two adjacent feeding boxes 2. When the air pressure intensity of the air flow at the point closest to the feeding side is not enough to fully convey the material to the adjacent feeding box 2, the point is the starting setting point of the flow control part 3.

[0045] Referring to Figure 2 With Figure 3In the embodiment of the present application, the flow control part 3 is provided in plurality and adjacently, each of the flow control part 3 is arranged between two adjacent feed boxes 2, and the flow control part 3 is adjacent to the feed box 2 at the end part close to or away from the feeding side of the pipe body 1. The flow control part 3 and the inner wall of the bottom of the pipe body 1 form a flow control cavity 4, the diameter of the flow control cavity 4 is smaller than the inner diameter of the pipe body 1, and the flow control cavity 4 is adjacent to the cavity opening of the next feed box 2, and continuously decreases away from the feeding side of the pipe body 1. When the material is cotton, the cotton flow is accelerated due to the decrease of the diameter of the flow control cavity 4, the accelerated cotton flow reduces the lateral pressure of the pipe wall 1, and the friction resistance between the cotton flow fiber and the metal is also reduced, thereby reducing the possibility of the pipe 1 being blocked by the cotton material; meanwhile, between the bottom of the pipe body 1 and the feed box 2, due to the increase of the inner diameter, the flow velocity is slowed down, the lateral pressure of the cotton flow is increased, and the cotton flow can be better input into the feed box 2. In other embodiments, the flow control part 3 can also be integrally arranged, and the flow control part 3 continuously extends away from the feeding side of the pipe body 1 from the initial point.

[0046] Referring to Figure 2 with Figure 3 When the gas flow enters the flow control cavity 4, due to the decrease of the channel for the gas flow, the gas flow is extruded and the gas pressure strength begins to rise, and when the material is guided to the next feed box 2 adjacent to the flow control cavity 4, due to the rise of the gas flow pressure strength, the material can be fully and timely sent into the feed box 2, thereby greatly reducing the possibility of the feed box 2 close to the feeding side of the pipe body 1 being blocked. Meanwhile, due to the continuously decreasing of the cavity opening of the flow control cavity 4 adjacent to the next feed box 2, the gas pressure strength of the gas flow can meet the feed box 2 farther and farther away from the feeding side of the pipe body 1. And, due to the plurality of the flow control part 3 arranged at intervals, the gap space 31 is formed between the adjacent flow control parts 3, and the material carried by the gas flow enters the gap space 31 after being separated from the flow control cavity 4, at this time, the material compacted by the flow control cavity 4 is stretched, thereby greatly facilitating the gas flow to carry the material into the feed box 2.

[0047] The implementation principle of the feeding pipe of the embodiment of the present application is as follows:

[0048] The gas flow pushes the material to be transmitted in the pipe body 1, and when the gas flow passes through the feed box 2, the gas flow enters the feed box 2 at the same time, and the material carried by the gas flow enters the feed box 2. When the gas flow moves to the flow control part 3, the gas flow carries the material vertically through the flow control part 3 to the next adjacent feed box 2, and when the gas flow carries the material away from the flow control cavity 4 and passes through the next adjacent feed box 2, the material can be fully and timely sent into the feed box 2, thereby greatly reducing the possibility of the feed box 2 close to the feeding side of the pipe body 1 being blocked.

[0049] Embodiment two

[0050] Referring to Figure 4The difference between the embodiment and the embodiment one is that the shape structure of the flow control part 3 is different. The flow control part 3 in the embodiment two is a flow control plate 5, and the flow control plate 5 is horizontally arranged. The flow control plate 5 is fixedly connected with a baffle 51 at one end close to the feeding side of the pipe body 1, and the baffle 51 and the flow control part 3 form an "L" shape structure.

[0051] Referring to Figure 4 The top of the baffle 51 abuts against the inner wall of the top of the pipe body 1, for limiting the airflow from transmitting the material away from the feeding side of the pipe body 1 to the side of the flow control cavity 4 away from the flow control part 3, so that the material can be timely distributed to the feeding box 2 after leaving the flow control cavity 4. At the same time, since the flow control part 3 is horizontally arranged, the diameter of the flow control cavity 4 is in a uniform state, the airflow is extruded after entering the flow control cavity 4, the air pressure strength instantaneously rises, the transmission time of the material in a single flow control cavity 4 is shortened, and the diameter of the flow control cavity 4 continuously decreases away from the feeding side of the pipe body 1, so that the time of the same amount of material being distributed to each feeding box 2 in the pipe body 1 is greatly shortened.

[0052] Embodiment three

[0053] Referring to Figure 5 The difference between the embodiment three and the embodiment one is that the shape structure of the flow control plate 5 is different. The flow control part 3 in the embodiment two is a smooth inclined plate structure, the flow control part 3 extends downwardly and obliquely from close to the feeding side of the pipe body 1 to away from the feeding side of the pipe body 1, and the top of the flow control part 3 abuts against the inner wall of the pipe body 1. The material transmitted to the flow control part 3 can all enter the flow control cavity 4, the air pressure strength of the airflow gradually increases under the condition that the flow control part 3 is smoothly arranged, and the distance of the material moving along the flow control part 3 is short, so as to accelerate the material passing through the flow control cavity 4.

[0054] On the other hand, the application discloses a carding machine, referring to Figure 6 The carding machine 7 is one-to-one corresponding to the feeding box 2, and the feeding device of the carding machine 7 is communicated with the feeding box 2. When the material is cotton, chemical fiber or the like, the cotton, the chemical fiber or the like enters the pipe body 1, then enters the feeding box through the feeding box 2, and then is uniformly and continuously transmitted to the carding machine 7 by the feeding box.

[0055] The above are the preferred embodiments of the application, which do not limit the protection scope of the application, so that: any equivalent changes made on the structure, shape, principle of the application shall be covered within the protection scope of the application.

Claims

1. A feeding duct comprising a tube body (1), a feeding box (2) arranged at the bottom of the tube body (1), characterized in that, Also include: The flow control part (3) is arranged in the pipe body (1) and away from the feeding side, the flow control part (3) and the pipe wall of the pipe body (1) form a flow control cavity (4) with a diameter smaller than the inner diameter of the pipe body (1), and the airflow is guided to the feeding box (2); The flow control part (3) is arranged between two adjacent feeding boxes (2), and the diameter of the flow control cavity (4) gradually decreases from the feeding side of the pipe body (1) to the feeding side of the pipe body (1); The pipe body (1) is formed with a communication port (11) corresponding to the feeding box (2), and the pipe body (1) is detachably connected with a blocking plate (12) for blocking the communication port (11); The gap space (31) is formed between the adjacent flow control parts (3), and the airflow carries the material out of the flow control cavity (4) and into the gap space (31), at which time the material compacted by the flow control cavity (4) is stretched out, facilitating the airflow carrying the material into the feeding box (2).

2. A feed conduit according to claim 1, wherein: The flow control part (3) is a flow control plate (5), which extends along the horizontal direction, and the flow control plate (5) is arranged with a baffle (51) near the feeding side of the pipe body (1) to restrict the material passing from the side of the flow control plate (5) away from the flow control cavity (4).

3. A feed conduit according to claim 1, wherein: The flow control part (3) extends downward along an arc trajectory from the feeding side of the pipe body (1) to the feeding side of the pipe body (1).

4. A feed conduit according to claim 1, wherein: The flow control part (3) is arranged smoothly and extends downward obliquely from the feeding side of the pipe body (1) to the feeding side of the pipe body (1).

5. A feed conduit according to claim 1, wherein: The pipe body (1) is provided with a fixing member (6), and the pipe body (1) is detachably fixed with the flow control part (3) through the fixing member (6).

6. A carding machine using a feed duct according to any one of claims 1-5, characterized in that: The feeding device of the carding machine (7) is connected with the feeding box (2).

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