Untwisting pipe

Abstract

The invention discloses an untwisting tube, which relates to the technical field of textile equipment and comprises an upper tube body and a lower tube body. A first central channel is formed in the upper pipe body; a wire inlet is formed in the side wall of the upper pipe body; the lower pipe body comprises a base body pipe and an extension pipe, and a second center channel is formed in the base body pipe and the extension pipe. A plurality of spiral air inlets are formed in the side wall of the base body pipe; a beveled air outlet is formed in the upper end of the extension pipe, the beveled air outlet of the extension pipe is located in the first center channel and located in the side projection of one side of the wire inlet, and the beveled air outlet and the wire inlet have an overlapping area; under the action of external force, the upper pipe body can circumferentially rotate relative to the lower pipe body; the high-speed airflow flowing through the first center channel can form negative pressure at the yarn inlet and suck the yarn in. And rapid and effective adjustment and use can be carried out according to different requirements, and adjustability and applicability are improved.

Description

Technical Field

[0001] The invention relates to the technical field of textile equipment, in particular to an untwisting tube. Background Art

[0002] Winding machine is a special equipment for textile industry, which plays a "bridge" role in the textile field. Its main working principle includes the steps of drawing, yarn formation, strand formation and warping. Through the winding machine, the fiber can be processed into fine yarn, and further woven into various textiles.

[0003] Untwisting is an important part of the winding machine operation. The existing untwisting tube technology is monopolized by Europe and Japan. The conventional structure of the existing untwisting tube 40 is as follows: Figure 5 and Figure 6 As shown, the principle is that a high-speed airflow enters through an air inlet cavity 411 on a connecting base 41 and enters from a side air inlet 401 of an existing untwisting tube 40 through a guide channel 412 for changing the direction of the airflow. After entering the existing untwisting tube 40, the high-speed airflow is blown out toward one end thereof, and forms a negative pressure at the opening at the other end of the untwisting tube, sucking the yarn end in. After entering from the side air inlet 401 of the existing untwisting tube 40, the high-speed airflow will blow toward its inner wall, and form two counter-rotating airflows inside the existing untwisting tube 40, and the rotating airflow in the opposite direction to the yarn twist direction is utilized for the untwisting of the yarn.

[0004] However, the existing untwisting tube 40 and the guide channel 412 are mostly fixed in relative position, and the cyclonic airflow generated is also relatively fixed. Therefore, it is necessary to quickly and effectively generate different airflow cyclones in the untwisting tube to suit the untwisting of different yarns and ensure the untwisting shaping effect of different yarns. Summary of the invention

[0005] The purpose of the present invention is to provide an untwisting tube to solve the problems existing in the above-mentioned prior art, which can be quickly and effectively adjusted and used according to different needs, thereby improving adjustability and applicability.

[0006] To achieve the above object, the present invention provides the following solutions:

[0007] The present invention provides an untwisting tube, comprising an upper tube body and a lower tube body; the upper tube body is provided with a first central channel, the two ends of the upper tube body are respectively a wire outlet and a lower opening connected to the first central channel, the inner diameter of the lower opening is smaller than the inner diameter of the first central channel; the side wall of the upper tube body is provided with a wire inlet connected to the first central channel; the lower tube body comprises a base tube and an extension tube, the upper end of the base tube is fixedly connected and connected to the lower end of the extension tube, and the base tube and the extension tube have a second central channel inside; the side wall of the base tube is provided with a plurality of rotational air inlets connected to the second central channel, the lower end of the base tube is used to be fixedly inserted into the mounting hole of the base, and the part of the base tube with each of the rotational air inlets can be located in the air inlet cavity of the base; the upper end of the extension tube is an oblique air outlet connected to the second central channel, and the extension tube is fixed Inserted in the first lower opening, the beveled air outlet of the extension tube is located in the first central channel and in the side projection on one side of the wire inlet, and the beveled air outlet and the wire inlet have an overlapping area; when the axis of the upper tube body is in a vertical direction, the lowermost end of the beveled air outlet is not higher than the middle part of the wire inlet, and the uppermost end of the beveled air outlet is not higher than the uppermost end of the wire inlet; under the action of external force, the upper tube body can rotate circumferentially around the first axis relative to the lower tube body; the inner diameter of the first central channel is larger than the inner diameter of the second central channel, and the inner diameter of the second central channel is smaller than the inner diameter of the gas inlet of the air inlet cavity of the base; each of the rotary air inlets can guide the airflow to enter the second central channel in a rotating shape and flow toward the first central channel; the high-speed airflow flowing through the first central channel can form a negative pressure at the wire inlet and suck in the yarn.

[0008] Preferably, a plurality of first scale lines are arranged on the lower end surface of the upper tube body around the circumference of the upper tube body, and a second scale line is arranged on the base tube at a position corresponding to the beveled air outlet.

[0009] Preferably, the first central channel and the second central channel are coaxially arranged.

[0010] Preferably, the line inlet is an inclined opening with its end facing the line outlet.

[0011] Preferably, a lower air inlet communicating with the second central channel is further provided at the lower end of the base tube.

[0012] Preferably, the included angle between the beveled surface of the beveled air outlet and the axis of the extension tube is 30° to 45°.

[0013] Compared with the prior art, the present invention has achieved the following technical effects:

[0014] The untwisting tube provided by the present invention adopts a rotary air inlet that can be directly placed inside the air inlet cavity of the base, which is used to allow the air flow to enter the first central channel from the oblique air outlet through the second central channel in the form of a rotary airflow; in the process of passing through the oblique air outlet and the line inlet, two major mainstream rotary airflows will be formed, one of which is a rotary airflow formed by the collision of part of the gas coming out of the oblique air outlet with the inner wall of the first central channel; the other is another rotary airflow formed by the joint action of part of the gas coming out of the oblique air outlet and the gas sucked from the line inlet; these two major mainstream rotary airflows finally form in the first central channel located above the oblique air outlet and the line inlet. Two stable, oppositely rotating airflows are formed in the central channel, wherein the rotating airflow opposite to the yarn twist is used to untwist the yarn; since the relative position of the cutout direction of the oblique air outlet and the inlet can be changed by rotation, firstly, for the untwisting of Z-twisted or S-twisted yarns, the positions of the two twists can be symmetrically rotated to achieve switching of different twist positions; secondly, the relative positions of the two can be rotated to adjust and change the airflow cyclone in the first central channel, so as to be suitable for the untwisting of different yarns; fast and effective adjustment can be achieved for different needs, thereby improving the adjustability and applicability of the untwisting tube.

[0015] Furthermore, the second scale line is used to indicate the orientation of the beveled air outlet, and the different alignments of different first scale lines and second scale lines realize the adjustment position indication of the relative position between the beveled air outlet and the line inlet, which facilitates and more accurately realizes the adjustment of its position.

[0016] Furthermore, the first central channel and the second central channel are coaxially arranged, so that the high-speed airflow in the second central channel can enter the first central channel more stably.

[0017] Furthermore, the wire inlet adopts a structure of an inclined opening with the end facing the wire outlet, so that the yarn can move toward the wire outlet more smoothly after entering the first central channel.

[0018] Furthermore, the lower air inlet can cooperate with the various rotary air inlets to form a stable rotary airflow in the second center channel, thereby ensuring sufficient air intake.

[0019] Furthermore, the inclination angle of the obliquely cut gas outlet can ensure that it works together with the gas entering from the inlet to achieve a more effective rotary airflow. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 A schematic diagram of the overall structure of the untwisting tube provided by the present invention;

[0022] Figure 2 An exploded view of the structure of the untwisting tube provided by the present invention;

[0023] Figure 3 A schematic diagram of the untwisting tube provided by the present invention being installed on a base;

[0024] Figure 4 for Figure 3 Another perspective structural diagram of;

[0025] Figure 5 It is a structural schematic diagram of an existing untwisting tube;

[0026] Figure 6 It is a schematic diagram of the airflow in the cross section of the existing untwisting tube;

[0027] Figure 7 A schematic diagram of the flow of airflow on a longitudinal section after the untwisting tube provided by the present invention is installed on a base;

[0028] Figure 8 A schematic diagram of the flow of air in the second central channel of the untwisting tube provided by the present invention;

[0029] Fig. 9 A schematic diagram of the flow of air in the untwisting tube provided by the present invention when the air reaches the position of the oblique air outlet;

[0030] Fig.10 A schematic diagram of the flow of air in the untwisting tube provided by the present invention when the air reaches the middle of the oblique air outlet;

[0031] Fig.11 A schematic diagram of the flow of air in the untwisting tube provided by the present invention when the air reaches the top of the oblique air outlet and is still within the range of the wire inlet;

[0032] Fig.12 A schematic diagram of the flow of air in the untwisting tube provided by the present invention when the air is about to flow to the highest end of the inlet;

[0033] Fig.13 A schematic diagram of the flow of air in the untwisting tube provided by the present invention after passing through the rear section of the wire inlet;

[0034] Fig.14 A schematic diagram of the flow of air in the untwisting tube provided by the present invention, where the oblique air outlet is at the first position relative to the wire inlet and just passes through the wire inlet;

[0035] Fig.15 This is a schematic diagram of the air flow in the untwisting tube provided by the present invention, where the oblique air outlet is at the second position relative to the wire inlet and just passes through the wire inlet.

[0036] In the figure:

[0037] 100-untwisting tube;

[0038] 10-upper tube body; 11-line outlet; 12-line inlet; 13-first center channel; 14-first scale line;

[0039] 20-lower tube body; 21-base tube; 211-rotational air inlet; 212-lower air inlet; 22-extension tube; 221-beveled air outlet; 23-second central channel; 24-second scale line;

[0040] 30-base; 31-gas inlet; 32-gas inlet cavity; 33-mounting hole; 34-guide groove;

[0041] 40-existing untwisting tube; 401-side air inlet; 41-connecting base; 411-air inlet cavity; 412-guide channel. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] The purpose of the present invention is to provide an untwisting tube to solve the problems existing in the prior art, which can be quickly and effectively adjusted for different needs and improve the adjustability and applicability.

[0044] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0045] Embodiment 1

[0046] This embodiment provides a detwisting tube 100, such as Figure 1 to Figure 4 and Figure 7 to Figure 15As shown, it includes an upper tube body 10 and a lower tube body 20; the upper tube body 10 has a first central channel 13, and the two ends of the upper tube body 10 are respectively an outlet 11 and a lower opening connected to the first central channel 13, and the inner diameter of the lower opening is smaller than the inner diameter of the first central channel 13; the side wall of the upper tube body 10 is provided with an inlet 12 connected to the first central channel 13; the lower tube body 20 includes a base tube 21 and an extension tube 22, and the upper end of the base tube 21 is fixedly connected to the lower end of the extension tube 22 The base tube 21 and the extension tube 22 are connected, and a second central channel 23 is provided inside the base tube 21 and the extension tube 22; a plurality of rotational air inlets 211 connected to the second central channel 23 are provided on the side wall of the base tube 21, and the lower end of the base tube 21 is used to be fixedly inserted into the mounting hole 33 of the base 30, and the part of the base tube 21 having the rotational air inlets 211 can be located in the air inlet cavity 32 of the base 30; the upper end of the extension tube 22 is an oblique air outlet 221 connected to the second central channel 23, The extension tube 22 is fixedly inserted in the first lower opening, and the beveled air outlet 221 of the extension tube 22 is located in the first central channel 13, and in the side projection on one side of the wire inlet 12, the beveled air outlet 221 and the wire inlet 12 have an overlapping area; when the axis of the upper tube body 10 is in a vertical direction, the lowermost end of the beveled air outlet 221 is not higher than the middle part of the wire inlet 12, and the uppermost end of the beveled air outlet 221 is not higher than the uppermost end of the wire inlet 12; under the action of external force, the upper tube body 10 can rotate circumferentially around the first axis relative to the lower tube body 20; the inner diameter of the first central channel 13 is larger than the inner diameter of the second central channel 23, and the inner diameter of the second central channel 23 is smaller than the inner diameter of the gas inlet of the air inlet cavity 32 of the base 30; each rotary air inlet 211 can guide the airflow to enter the second central channel 23 in a rotating shape and flow to the first central channel 13; the high-speed airflow flowing through the first central channel 13 can form a negative pressure at the wire inlet 12 and suck the yarn in.

[0047] By adopting a rotary air inlet 211 that can be directly placed inside the air inlet cavity 32 of the base 30, it is used to direct the air flow in the form of a rotary airflow from the beveled air outlet 221 to the first central channel 13 through the second central channel 23; in the process of passing through the beveled air outlet 221 and the line inlet 12, two major mainstream rotary airflows will be formed (there will be some other rotary airflows in this process, and only the two major mainstream rotary airflows are introduced here), one of which is a rotary airflow formed by the collision of part of the gas coming out of the beveled air outlet 221 with the inner wall of the first central channel 13; the other is another rotary airflow formed by the combined action of part of the gas coming out of the beveled air outlet 221 and the gas inhaled from the line inlet 12; these two major mainstream rotary airflows are most Finally, two stable, oppositely rotating air currents are formed in the first central channel 13 located above the oblique air outlet 221 and the wire inlet 12, wherein the rotating air current opposite to the yarn twist is used to untwist the yarn; since the relative position of the cutout direction of the oblique air outlet 221 and the wire inlet 12 can be changed by rotation, firstly, for the untwisting of yarns with different twist directions such as Z twist or S twist, the positions of the two twist directions can be switched symmetrically to achieve switching; secondly, the relative positions of the two can be rotated to adjust and change the air flow cyclone in the first central channel 13, so as to adapt to the untwisting of different yarns; fast and effective adjustment can be achieved to meet different needs, thereby improving the adjustability and applicability of the untwisting tube 100.

[0048] Specifically, the inner diameter of the second central channel 23 is smaller than the inner diameter of the gas inlet of the air inlet cavity 32 of the base 30 and the inner diameter of the first central channel 13, and a Venturi tube structure is formed.

[0049] In order to increase the accuracy of the relative rotation adjustment between the upper tube body 10 and the lower tube body 20, the following settings can also be made:

[0050] Among the optional solutions of this embodiment, it is more preferred that Figure 1 and Figure 2 As shown, the lower end surface of the upper tube body 10 is provided with a plurality of first scale lines 14 around the circumference of the upper tube body 10, and the base tube 21 is provided with second scale lines 24 at positions corresponding to the beveled gas outlet 221. The second scale lines 24 are used to indicate the position of the beveled gas outlet 221, and the different alignments of the different first scale lines 14 and the second scale lines 24 realize the adjustment position indication of the relative position between the beveled gas outlet 221 and the line inlet 12, which realizes the adjustment of their positions more conveniently and more accurately.

[0051] Among them, regarding the relative position between the first central channel 13 and the second central channel 23:

[0052] Among the optional solutions of this embodiment, it is more preferred that Figure 1As shown, the first central channel 13 and the second central channel 23 are coaxially arranged. The first central channel 13 and the second central channel 23 are coaxially arranged so that the high-speed airflow in the second central channel 23 can enter the first central channel 13 more stably.

[0053] Specifically, at this time, the first axis is coaxial with the axis of the first central channel 13 or the second central channel 23 .

[0054] Among them, regarding the setting of the incoming line port 12:

[0055] Among the optional solutions of this embodiment, it is more preferred that Figure 1 and Figure 2 As shown, the inlet 12 is an inclined opening with the end facing the outlet 11. The inlet 12 adopts a structure of an inclined opening with the end facing the outlet 11, which improves the smooth movement of the yarn towards the outlet 11 after entering the first central channel 13.

[0056] Among them, regarding the setting of the rotational air inlet 211:

[0057] Specifically, the number, position, size and other parameters of the directional air inlet 211 can be determined according to the actual air flow simulation effect, including but not limited to: Figure 1 and Figure 2 Each rotary air inlet 211 is used to evenly and rotate the air flow in the air inlet cavity 32 into the second central channel 23.

[0058] In order to ensure sufficient air intake in the second central channel 23, the following settings may be made:

[0059] Among the optional solutions of this embodiment, it is more preferred that Figure 1 and Figure 2 As shown, the lower end of the base tube 21 is also provided with a lower air inlet 212 connected to the second central channel 23. The lower air inlet 212 can cooperate with the swirl air inlets 211 to form a stable swirl airflow in the second central channel 23 to ensure sufficient air intake.

[0060] Among them, regarding the bevel setting of the beveled air outlet 221:

[0061] In the optional solution of this embodiment, it is more preferred that the angle between the bevel surface of the beveled gas outlet 221 and the axis of the extension tube 22 is 30° to 45°. The inclination angle of the beveled gas outlet 221 can ensure that it works together with the gas entering from the inlet 12 to achieve a better swirling airflow.

[0062] Specifically, the beveled surface of the beveled air outlet 221 is an end surface formed by beveled cutting of the extension tube 22 .

[0063] Among them, other descriptions about the untwisting tube 100 are as follows:

[0064] Specifically, when the base tube 21 has both the lower air inlet 212 and the four directional air inlets 211, the air flow diagram on the longitudinal section is as follows: Figure 5 As shown; in the cross-sectional view, the airflow flow diagram when the airflow passes through the second central channel 23, the extension tube 22, and the first central channel 13 in sequence is as shown Figure 7 to Figure 13 shown.

[0065] Specifically, by rotating the relative position between the oblique air outlet 221 and the line outlet 11, the description of the air flow cyclone in the first central channel 13 is changed: Fig.14 As shown, in a top view, the center line of the oblique air outlet 221 and the horizontal center line of the outlet 11 are at a relative position of 45°; Fig.15 As shown, in a top view, the center line of the oblique air outlet 221 and the horizontal center line of the outlet 11 are at a relative position of 70°; Fig.14 and Fig.15 are all air flow diagrams at the same position of the upper tube body 10, which show that when the beveled air outlet 221 is located at Fig.14 When the angle is 45°, the two main swirling airflows formed will be Fig.15 The two main spiral airflows formed at the 70° position are formed and stabilized earlier, that is, the different relative positions between the oblique air outlet 221 and the wire outlet 11 can change the distance between the position where the two main spiral airflows are formed and the wire outlet 11. When it is close to the wire outlet 11, it can untwist the incoming yarn earlier.

[0066] Among them, regarding the structure of the base 30:

[0067] Specifically, the base 30 is an existing device, which has an air inlet cavity 32, a gas inlet 31 connected to the air inlet cavity 32, and a mounting hole 33 connected to the air inlet cavity 32; the base 30 is also provided with a guide groove 34 at the position corresponding to the wire inlet 12 of the untwisting tube 100.

[0068] Specifically, the main function of the base 30 is to provide air intake and to fix and support the untwisting tube 100; the main function of the untwisting tube 100 is to untwist the yarn.

[0069] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A detwisting tube, characterized in that: comprising an upper tube body and a lower tube body; The upper tube body has a first central channel, and the two ends of the upper tube body are respectively a wire outlet and a lower opening connected to the first central channel, and the inner diameter of the lower opening is smaller than the inner diameter of the first central channel; the side wall of the upper tube body is provided with a wire inlet connected to the first central channel; The lower tube body comprises a base tube and an extension tube, the upper end of the base tube is fixedly connected and communicated with the lower end of the extension tube, and the base tube and the extension tube have a second central channel inside; a plurality of rotary air inlets connected with the second central channel are arranged on the side wall of the base tube, the lower end of the base tube is used to be fixedly inserted into the mounting hole of the base, and the part of the base tube having the rotary air inlets can be located in the air inlet cavity of the base; the upper end of the extension tube is an oblique air outlet connected with the second central channel, the extension tube is fixedly inserted in the first lower opening, and the oblique air outlet of the extension tube is located in the first central channel and in the side projection on one side of the line inlet, and the oblique air outlet has an overlapping area with the line inlet; when the axis of the upper tube body is in a vertical direction, the lowermost end of the oblique air outlet is not higher than the middle part of the line inlet, and the uppermost end of the oblique air outlet is not higher than the uppermost end of the line inlet; Under the action of external force, the upper tube body can rotate circumferentially around the first axis relative to the lower tube body; The inner diameter of the first central channel is larger than the inner diameter of the second central channel, and the inner diameter of the second central channel is smaller than the inner diameter of the gas inlet of the gas inlet cavity of the base; Each of the directional air inlets can guide the airflow to enter the second central channel in a rotating shape and flow toward the first central channel; the high-speed airflow flowing through the first central channel can form a negative pressure at the yarn inlet and suck in the yarn.

2. The untwisting tube according to claim 1, characterized in that: A plurality of first scale lines are arranged on the lower end surface of the upper tube body around the circumference of the upper tube body, and a second scale line is arranged on the base tube at a position corresponding to the obliquely cut air outlet.

3. The untwisting tube according to claim 1, characterized in that: The first central channel and the second central channel are coaxially arranged.

4. The untwisting tube according to claim 1, characterized in that: The line inlet is an inclined opening with its end facing the line outlet.

5. The untwisting tube according to claim 1, characterized in that: The lower end of the base tube is also provided with a lower air inlet which is communicated with the second central channel.

6. The untwisting tube according to claim 1, characterized in that: The included angle between the beveled surface of the beveled air outlet and the axis of the extension tube is 30° to 45°.

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