A compressed air ejector

Abstract

The utility model discloses a compressed air ejector relates to the technical field of silk making, and it is compact and reasonable, simple structure, including: airflow guide pipe, airflow guide pipe and tow lead pipe, the airflow guide pipe inside is provided with the main passageway for the tow to pass through, and the main passageway includes the first passageway and the second passageway that intercommunicate, and the first passageway is connected with the second passageway through transition arc surface, the airflow guide pipe is connected in the airflow guide pipe side wall, and its inside is provided with the air inlet passageway that communicates with the second passageway, the tow lead pipe is detachably installed in the second passageway, and its inside is provided with for the tow to pass through the incoming silk passageway, and the incoming silk passageway is communicated with the first passageway, and the end of tow lead pipe close to the first passageway and transition arc surface between leaving gap, and the gap is communicated air inlet passageway, the second passageway and the first passageway in proper order. Such setting can improve the work efficiency of fine yarn cake to find head, reduces the time to find head, reduces the compressed air use amount.

Description

Technical Field

[0001] This utility model relates to the field of silk production technology, and in particular to a compressed air ejector. Background Technology

[0002] In the current process, the yarn package needs to undergo a head-finding and retraction process. Compressed air is introduced into the nozzle to drive the yarn bundle for head-finding, thereby removing waste yarn. However, in the traditional method, each head-finding operation requires 0.8 MPa of compressed air and takes about 270 seconds. This process is not only time-consuming but also consumes a considerable amount of compressed air.

[0003] Therefore, how to improve the efficiency of head finding, reduce the head finding time, and reduce the amount of compressed air used are technical problems that need to be solved by those skilled in the art. Utility Model Content

[0004] The purpose of this invention is to provide a compressed air ejector that can improve the efficiency of yarn cake finding, reduce finding time, and reduce the amount of compressed air used.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A compressed air ejector, comprising:

[0007] An airflow outlet tube has a main channel inside for the filament bundle to pass through. The main channel includes a first channel and a second channel that are interconnected and are connected by a transition arc surface.

[0008] An airflow inlet pipe is connected to the side wall of the airflow outlet pipe, and an air intake channel communicating with the second channel is provided inside it.

[0009] A filament drain tube is detachably installed in the second channel. It has an inlet channel for the filament to pass through and the inlet channel is connected to the first channel. A gap is left between the end of the filament drain tube near the first channel and the transition arc surface. The gap is connected to the air inlet channel, the second channel and the first channel in sequence.

[0010] Preferably, the airflow outlet pipe is vertically connected to the airflow inlet pipe, and the two are an integral structure.

[0011] Preferably, the end of the airflow inlet pipe is threaded with a quick connector for connecting to the air intake pipe.

[0012] Preferably, the wire bundle drainage tube is inserted into the second pipe through an airflow regulating nut. The airflow regulating nut is threadedly connected to the inner side of the end of the second channel away from the first channel. The airflow regulating nut has an adjusting through hole in the middle for the wire bundle drainage tube to pass through. The inner wall of the adjusting through hole is provided with an internal thread, which engages with an external thread on the outer circumference of the wire bundle drainage tube. The airflow regulating nut can rotate to adjust the gap between the end of the wire bundle drainage tube and the transition arc surface.

[0013] Preferably, the airflow regulating nut is provided with a screwing protrusion, and the outer periphery of the screwing protrusion is provided with anti-slip texture.

[0014] Preferably, the outer periphery of the end of the filament drainage tube near the first channel is provided with a plurality of guide protrusions extending along its axial direction, and the intervals between the plurality of guide protrusions are uniform.

[0015] Preferably, the end of the guide protrusion near the transition arc surface is configured with a rounded corner structure.

[0016] Preferably, the end of the quick connector opposite to the airflow inlet pipe is provided with an annular groove, which is used to facilitate fixing the air inlet pipe.

[0017] Preferably, the airflow outlet pipe, the airflow inlet pipe, and the wire bundle drainage pipe are all made of steel.

[0018] Compared with the above-mentioned background technology, the present invention provides a compressed air ejector, comprising: an airflow outlet pipe, an airflow inlet pipe, and a filament guide pipe; the airflow outlet pipe has a main channel for the filament to pass through, the main channel including a first channel and a second channel that are interconnected, and the first channel and the second channel are connected by a transition arc surface; the airflow inlet pipe is connected to the side wall of the airflow outlet pipe, and has an air inlet channel that is connected to the second channel; the filament guide pipe is detachably installed in the second channel, and has an inlet channel for the filament to pass through, and the inlet channel is connected to the first channel, and a gap is left between the end of the filament guide pipe near the first channel and the transition arc surface, the gap connecting the air inlet channel, the second channel and the first channel in sequence.

[0019] Specifically, compressed air is introduced into the airflow inlet pipe, and the air enters the second channel of the airflow outlet pipe along the airflow inlet pipe. Due to the insertion of the fiber bundle drainage tube, the air flows along the space between the inner wall of the second channel and the outer wall of the fiber bundle drainage tube. At the same time, there is a certain gap between the left end of the fiber bundle drainage tube and the transition arc surface. The air will enter the first channel through this gap and exit from the first channel. During this process, a negative pressure effect will be formed at the connection between the first channel and the transition arc surface, which will generate a large suction force. Since the fiber inlet channel inside the fiber bundle drainage tube is connected to the first channel and the fiber bundle is inserted inside it, the fiber bundle is smoothly discharged along the first channel under the action of suction until the end of the fiber bundle is found. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the compressed air ejector structure provided in an embodiment of the present invention;

[0022] Figure 2 This is a cross-sectional view of the compressed air ejector structure provided in an embodiment of the present utility model;

[0023] Figure 3 This is a schematic diagram of the movement of air and filament inside the compressed air ejector provided in an embodiment of the present invention;

[0024] Figure 4 This is a schematic diagram of the airflow outlet pipe and airflow inlet pipe provided in an embodiment of the present utility model;

[0025] Figure 5 This is a cross-sectional view of the airflow outlet pipe and airflow inlet pipe provided in an embodiment of the present utility model;

[0026] Figure 6 This is a schematic diagram of the airflow regulating nut structure provided in an embodiment of the present utility model;

[0027] Figure 7 This is a schematic diagram of the wire bundle drainage tube structure provided in an embodiment of the present utility model.

[0028] in:

[0029] 100 - Airflow outlet pipe, 110 - First channel, 120 - Second channel, 130 - Transition arc surface;

[0030] 200 - Airflow inlet pipe, 210 - Air intake channel;

[0031] 300 - Fiber bundle drainage tube, 310 - Fiber inlet channel, 320 - Guide protrusion

[0032] 400 - Quick coupling; 410 - Annular groove;

[0033] 500 - Airflow regulating nut, 510 - Regulating through hole, 520 - Tightening protrusion, 530 - Anti-slip texture. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0036] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left" and "right" 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 indicated position or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations of this utility model.

[0037] The purpose of this invention is to provide a compressed air ejector that can improve the efficiency of yarn cake finding, reduce finding time, and reduce the amount of compressed air used.

[0038] It should be noted that this embodiment uses the appendix... Figure 3 Solid arrows represent the direction of airflow, while dashed arrows represent the direction of movement of the filament bundle.

[0039] To achieve the above objectives, the present invention provides the following technical solution:

[0040] Please see Figures 1 to 7This embodiment provides a compressed air ejector, including: an airflow outlet pipe 100, an airflow inlet pipe 200, and a filament guide pipe 300; the airflow outlet pipe 100 has a main channel for the filament to pass through, the main channel includes a first channel 110 and a second channel 120 that are interconnected, and the first channel 110 and the second channel 120 are connected by a transition arc surface 130; the airflow inlet pipe 200 is connected to the side wall of the airflow outlet pipe 100, and has an air inlet channel 210 that communicates with the second channel 120; the filament guide pipe 300 is detachably installed in the second channel 120, and has an air inlet channel 310 for the filament to pass through, and the air inlet channel 310 communicates with the first channel 110, and there is a gap between the end of the filament guide pipe 300 near the first channel 110 and the transition arc surface 130, the gap being connected in sequence to the air inlet channel 210, the second channel 120 and the first channel 110.

[0041] Specifically, both the airflow outlet pipe 100 and the airflow inlet pipe 200 are tubular structures. The airflow outlet pipe 100 has a main channel along its axis inside, comprising three parts: a smaller diameter first channel 110, a larger diameter second channel 120, and a transition arc surface 130 connecting the first channel 110 and the second channel 120. The transition arc surface 130 smoothly connects to the first two. The airflow inlet pipe 200 is also tubular and is connected to the outer wall of the airflow outlet pipe 100. It should be noted that the air inlet channel 210 inside the airflow inlet pipe 200 communicates with the second channel 120. In this embodiment, the fiber bundle drainage pipe 300 is inserted into the second channel 120 during use. The left end of the tube has a small gap between itself and the transition arc surface 130. This gap connects the space between the inner walls of the first channel 110 and the second channel 120 and the outer wall of the filament guide tube 300. At the same time, the filament guide tube 300 has a straight inlet channel 310 connected to the first channel 110 along its axis. The filament will pass through the inlet channel 310 and exit from the first channel 110. In this way, when air passes through the gap, the flow rate increases and flows out of the first channel 110. This will create a negative pressure zone between the first channel 110 and the gap, thereby creating a suction force to the left. The filament in the middle of the filament guide tube 300 will move to the left under the action of the suction force.

[0042] In other words, compressed air is introduced into the airflow inlet pipe 200, and the air enters the second channel 120 of the airflow outlet pipe 100 along the airflow inlet pipe 200. Due to the insertion of the fiber bundle guide pipe 300, the air flows along the space between the inner wall of the second channel 120 and the outer wall of the fiber bundle guide pipe 300. At the same time, there is a certain gap between the left end of the fiber bundle guide pipe 300 and the transition arc surface 130. The air will enter the first channel 110 through this gap and be discharged from the first channel 110. During this process, a negative pressure effect will be formed at the connection between the first channel 110 and the transition arc surface 130, which will generate a large suction force. Since the fiber inlet channel 310 inside the fiber bundle guide pipe 300 is connected to the first channel 110 and the fiber bundle is inserted inside it, the fiber bundle is smoothly discharged along the first channel 110 under the action of suction until the end of the fiber bundle is found.

[0043] Preferably, the airflow outlet pipe 100 and the airflow inlet pipe 200 are vertically connected and are an integral structure.

[0044] In this embodiment, the airflow inlet pipe 200 is vertically connected to the outer wall of the airflow outlet pipe 100, that is, the axes of the two are perpendicular to each other. This arrangement allows compressed air to be evenly filled into the outer periphery of the fiber bundle guide pipe 300 when it enters the airflow outlet pipe 100. This ensures that the compressed air is evenly distributed in the annular space between the inner wall of the second channel 120 and the outer wall of the fiber bundle guide pipe 300. This also ensures that the compressed air flows out evenly from the gap, thereby ensuring the stability of the negative pressure zone in the first channel 110, maximizing the suction force generated, and making the most of the compressed air without wasting it.

[0045] Of course, in another embodiment, the airflow outlet pipe 100 can also be set at an angle to the airflow inlet pipe 200. In this case, multiple airflow inlet pipes 200 are provided on the outer periphery of the airflow outlet pipe 100 to ensure the uniformity of airflow filling and to ensure that the negative pressure zone formed in the first channel 110 can stably pull the filament bundle to move.

[0046] Preferably, the end of the airflow inlet pipe 200 is threaded with a quick connector 400, which is used to connect to the air intake pipe.

[0047] Furthermore, in order to facilitate the filling of compressed air into the airflow inlet pipe 200, a quick connector 400 is provided at the end of the airflow inlet pipe 200 away from the airflow outlet pipe 100. Specifically, an internal thread is provided on the inner wall of this end of the airflow inlet pipe 200, and an external thread that mates with the internal thread is provided on the outer periphery of one end of the quick connector 400, while the other end of the quick connector 400 can be fixedly connected to the air inlet pipe. In this way, when the compressed air ejector is needed, the quick connector 400 can simply be screwed onto the end of the airflow inlet pipe 200.

[0048] Of course, to ensure airtightness when compressed air is introduced, a sealing gasket can be installed when installing the quick coupling 400.

[0049] Preferably, the wire bundle drainage tube 300 is inserted into the second pipe through the airflow regulating nut 500. The airflow regulating nut 500 is threadedly connected to the inner side of the end of the second channel 120 away from the first channel 110. The airflow regulating nut 500 has an adjusting through hole 510 in the middle for the wire bundle drainage tube 300 to pass through. The inner wall of the adjusting through hole 510 is provided with an internal thread, which engages with the external thread provided on the outer periphery of the wire bundle drainage tube 300. The airflow regulating nut 500 can rotate to adjust the gap between the end of the wire bundle drainage tube 300 and the transition arc surface 130.

[0050] Specifically, such as Figure 2 and Figure 5 As shown, to facilitate the operator's adjustment of the suction force within the first channel 110, i.e., adjusting the gap between the wire bundle drain tube 300 and the transition arc surface 130, a rotatable airflow adjusting nut 500 is provided at the right end of the airflow outlet tube 100. An adjusting through hole 510 is provided at the axis of the airflow adjusting nut 500, and the inner diameter of the adjusting through hole 510 matches the outer diameter of the wire bundle drain tube 300. In addition, an internal thread is provided on the inner wall of the adjusting through hole 510, and a corresponding external thread is provided on the outer wall of the wire bundle drain tube 300. With this configuration, when the adjusting nut is rotated, the engagement between the internal thread and the external thread on the outer circumference of the wire bundle drain tube 300 allows the wire bundle drain tube 300 to move away from or closer to the transition arc surface 130, thereby adjusting the size of the gap and thus adjusting the airflow velocity through the gap, which in turn controls the suction force of the negative pressure zone within the first channel 110.

[0051] Understandably, the external thread on the outer circumference of the wire bundle drainage tube 300 can be set to an appropriate length according to actual needs, and the length of the external thread is the range of movement of the wire bundle drainage tube 300; in addition, when rotating the airflow regulating nut 500, it is also necessary to prevent it from being unscrewed out of the second pipe when in operation.

[0052] Preferably, the airflow regulating nut 500 is provided with a screwing protrusion 520, and the outer periphery of the screwing protrusion 520 is provided with anti-slip texture 530.

[0053] Specifically, such as Figure 6 As shown, in order to facilitate the operator to turn the airflow regulating nut 500, a ring-shaped turning protrusion 520 is provided on its outer periphery, and several anti-slip grooves 530 are also provided on the turning protrusion 520. This makes it easy for the operator to apply turning force without slipping.

[0054] Preferably, the outer periphery of the end of the filament drainage tube 300 near the first channel 110 is provided with a plurality of guide protrusions 320 extending along its axial direction, and the intervals between the plurality of guide protrusions 320 are uniform.

[0055] See the image for details. Figure 2 and Figure 7 As shown, in this embodiment, a plurality of guide protrusions 320 are provided at one end of the filament drain tube 300 near the transition arc surface 130. These guide protrusions 320 all extend along the axial direction of the filament drain tube 300, and the interval between each pair of adjacent guide protrusions 320 is the same. With this arrangement, the interval between each pair of adjacent guide protrusions 320 can be used to guide the acceleration of compressed air, so that the airflow can form a negative pressure zone in the first channel 110 when passing through the transition arc surface 130.

[0056] Preferably, the end of the guide protrusion 320 near the transition arc surface 130 is configured with a rounded corner structure.

[0057] Understandably, in order to prevent the filament drainage tube 300 from colliding with the transition arc surface 130 and causing damage to both, in this embodiment, the ends of the guide protrusion 320 near the transition arc surface 130 are all rounded to make the ends more rounded.

[0058] Preferably, the end of the quick connector 400 facing away from the airflow inlet pipe 200 is provided with an annular groove 410, which is used to facilitate fixing the air inlet pipe.

[0059] Understandably, in order to facilitate the connection between the quick connector 400 and the air intake pipe, an annular groove 410 is provided at the end of the quick connector 400 away from the airflow guide pipe. The air intake pipe can be completely fitted onto the annular groove 410 and then connected to the quick connector 400 through a ring or other wire-like parts.

[0060] Preferably, the airflow outlet pipe 100, the airflow inlet pipe 200, and the wire bundle drainage pipe 300 are all made of steel.

[0061] In this embodiment, the airflow outlet pipe 100 and the airflow inlet pipe 200 are integral structural components made of steel, and the wire bundle drainage pipe 300 is also made of steel. This arrangement can effectively extend their service life.

[0062] It should be noted that in this specification, relational terms such as first and second are used only to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0063] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0064] The embodiments provided by this utility model have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principles of this utility model, and these improvements and modifications also fall within the protection scope of this utility model.

Claims

1. A compressed air ejector, characterized in that, include: An airflow outlet tube (100) is provided inside with a main channel through which the filament bundle passes. The main channel includes a first channel (110) and a second channel (120) that are interconnected. The first channel (110) and the second channel (120) are connected by a transition arc surface (130). An airflow inlet pipe (200) is connected to the side wall of the airflow outlet pipe (100), and an air inlet channel (210) communicating with the second channel (120) is provided inside it. The filament drain tube (300) is detachably installed in the second channel (120). It has an inlet channel (310) for the filament to pass through, and the inlet channel (310) is connected to the first channel (110). There is a gap between the end of the filament drain tube (300) near the first channel (110) and the transition arc surface (130). The gap is connected to the air inlet channel (210), the second channel (120) and the first channel (110) in sequence.

2. The compressed air ejector of claim 1, wherein, The airflow outlet pipe (100) is vertically connected to the airflow inlet pipe (200), and the two are an integral structure.

3. The compressed air ejector of claim 2, wherein, The end of the airflow inlet pipe (200) is threaded with a quick connector (400), which is used to connect to the air intake pipe.

4. The compressed air ejector of claim 1, wherein, The wire bundle drain tube (300) is inserted into the second pipe through an airflow regulating nut (500). The airflow regulating nut (500) is threaded to the inner side of the end of the second channel (120) away from the first channel (110). The airflow regulating nut (500) has an adjusting through hole (510) in the middle of its interior for the wire bundle drain tube (300) to pass through. The inner wall of the adjusting through hole (510) is provided with an internal thread. The internal thread is engaged with the external thread provided on the outer periphery of the wire bundle drain tube (300). The airflow regulating nut (500) can rotate to adjust the gap between the end of the wire bundle drain tube (300) and the transition arc surface (130).

5. The compressed air ejector of claim 4, wherein, The airflow regulating nut (500) is provided with a screwing protrusion (520), and the outer periphery of the screwing protrusion (520) is provided with anti-slip texture (530).

6. The compressed air ejector of claim 1, wherein, The outer periphery of the end of the filament drain tube (300) near the first channel (110) is provided with a plurality of guide protrusions (320) extending along its axial direction, and the intervals between the plurality of guide protrusions (320) are uniform.

7. The compressed air ejector of claim 6, wherein, The end of the guide protrusion (320) near the transition arc surface (130) is configured with a rounded corner structure.

8. The compressed air ejector of claim 3, wherein, The quick connector (400) has an annular groove (410) at the end opposite to the airflow inlet pipe (200), which is used to facilitate fixing the air inlet pipe.

9. The compressed air ejector according to any one of claims 1 to 8, characterized in that The airflow outlet pipe (100), the airflow inlet pipe (200), and the wire bundle drainage pipe (300) are all made of steel.

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