Wire taking suction nozzle and wire taking device

Abstract

The invention relates to the technical field of spinning, in particular to a silk taking suction nozzle and a silk taking device. The silk taking suction nozzle is provided with an opening part, the opening part comprises a bottom wall, a first side wall and a second side wall, the first side wall is connected to one end of the bottom wall, the second side wall is connected to the other end of the bottom wall, the second side wall and the first side wall are oppositely arranged, and the side, close to the first side wall, of the second side wall is provided with a first inclined wall face. And the first inclined wall surface is inclined from one end far away from the bottom wall to one end close to the bottom wall towards the direction close to the first side wall. A pointing joint is formed among the bottom wall, the first side wall and the second side wall. The wire taking device comprises the wire taking suction nozzle. The silk taking suction nozzle and the silk taking device can suck and be compatible with silk threads with certain thickness differences, can efficiently separate single silk threads from wound and adhered silk threads, and have good adsorption stability on the silk threads.

Description

Technical Field

[0001] The invention relates to the technical field of textiles, and in particular to a wire taking suction nozzle and a wire taking device. Background Art

[0002] The existing wire-taking devices of the harness drawing equipment mainly adopt two types: negative pressure suction nozzle wire-taking device and twisting wire-taking device. Among them, the negative pressure suction nozzle wire-taking device mainly generates vacuum negative pressure at the suction nozzle through a vacuum generator, and uses the vacuum negative pressure to achieve the purpose of adsorbing the silk thread. After that, the wire-taking device will quickly separate the silk thread from the silk curtain to the target position to achieve the silk taking effect.

[0003] In the above-mentioned wire-taking process, for wires with different thicknesses, for example, the thickness of a certain wire itself varies to a certain extent (the thickness varies at different positions or the thickness of the wire is greatly affected by tension); or a multi-layer wire curtain, the thickness of the wires in the two layers of the wire curtain is similar but also has certain differences. The suction nozzle of the existing wire-taking device cannot be well compatible with such wires with certain thickness differences when taking wires, resulting in poor adsorption stability of the suction nozzle for wires of different thicknesses, which ultimately affects the wire-taking efficiency.

[0004] In the above-mentioned wire taking process, the wires in the wire curtain may be entangled or stuck together. When the suction nozzle of the existing wire taking device utilizes vacuum negative pressure to take wires, the adsorption force of the wires by vacuum negative pressure alone is limited, and the entangled and stuck wires cannot be well separated, which may result in taking multiple wires or empty wires, greatly affecting the production efficiency of the threading equipment. Summary of the invention

[0005] The main purpose of the present invention is to propose a wire taking suction nozzle and a wire taking device, aiming to solve the technical problems that the suction nozzle of the existing wire taking device cannot be well compatible with wires with certain differences in thickness, resulting in poor adsorption stability of the suction nozzle for wires of different thicknesses and difficulty in separating entangled and adhered wires.

[0006] To achieve the above object, the present invention proposes a wire suction nozzle for sucking a single silk thread, wherein the wire suction nozzle is provided with an opening portion, and the opening portion comprises:

[0007] bottom wall;

[0008] a first side wall connected to one end of the bottom wall;

[0009] a second side wall, the second side wall being connected to the other end of the bottom wall, and the second side wall and the first side wall being arranged opposite to each other, a first inclined wall surface being arranged on a side of the second side wall close to the first side wall, and the first inclined wall surface being arranged inclined from an end away from the bottom wall to an end close to the bottom wall toward a direction close to the first side wall;

[0010] Wherein, a joint is formed between the bottom wall, the first side wall and the second side wall.

[0011] In some embodiments, a side of the bottom wall facing the grouting is provided with an adsorption wall surface, and the adsorption wall surface is provided with adsorption holes;

[0012] The width D3 of the adsorption wall and the thickness parameter S1 of the single thread satisfy the following relationship: 0.5S1≤D3≤1.5S1.

[0013] In some embodiments, a guide wall surface is disposed on a side of the first side wall away from the second side wall, and the guide wall surface is inclined from an end close to the bottom wall to an end away from the bottom wall toward a direction close to the second side wall.

[0014] In some embodiments, along the direction from the first side wall to the second side wall, the angle α between the guide wall surface and the bottom wall satisfies: 30°≤α≤60°.

[0015] In some embodiments, the depth D1 of the grouting and the thickness parameter S1 of the single wire satisfy: 1.5S1≤D1≤2S1.

[0016] In some embodiments, along the direction from the first side wall to the second side wall, the width D4 of the end of the slit away from the bottom wall and the thickness parameter S1 of the single wire satisfy the following relationship: S1≤D4<2S1.

[0017] In some embodiments, an adsorption wall surface is provided on the side of the bottom wall facing the joint, the direction from the first side wall to the second side wall is the first direction, the direction perpendicular to the adsorption wall surface is the second direction, and notches are provided at both ends of the first side wall along the directions perpendicular to the first direction and the second direction.

[0018] In some embodiments, along a direction perpendicular to the first direction and perpendicular to the second direction, a length L1 of the notch portion and a length L2 of the first side wall satisfy: 1 / 10≤L1 / L2≤1 / 8.

[0019] In some embodiments, a second inclined wall surface is disposed on a side of the first side wall close to the second side wall, and the second inclined wall surface is inclined from an end away from the bottom wall to an end close to the bottom wall toward a direction close to the second side wall.

[0020] Correspondingly, the present invention also proposes a wire taking device, comprising:

[0021] The wire taking nozzle as described in any one of the above items;

[0022] A vacuum generator, the vacuum generator is connected to the wire-taking suction nozzle, and the vacuum generator is configured to draw a vacuum into the wire-taking suction nozzle so that a vacuum negative pressure is generated on the adsorption wall surface of the wire-taking suction nozzle;

[0023] A driving mechanism is connected to the wire taking suction nozzle, and the driving mechanism is configured to drive the wire taking suction nozzle to move toward or away from the wire curtain.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] In the technical solution of the present invention, when a single silk thread is hooked by a wire-taking nozzle, first the opening of the wire-taking nozzle will move to the side of the silk curtain, and the first side wall of the wire-taking nozzle will contact and squeeze the silk curtain, so that the single silk thread slides into the hooking seam, and the single silk thread can be stably hooked by the hooking seam. Then the wire-taking nozzle will move in the direction away from the silk curtain, and the single silk thread that falls into the hooking seam will be blocked by the first side wall and the second side wall, and will be separated from the silk curtain as the wire-taking nozzle moves away from the silk curtain. As for the entangled and adhered non-target silk threads, they will be separated from the target silk threads under their own increased tension as the wire-taking nozzle moves away from the silk curtain. The wire-taking nozzle provided by the present invention can ensure that a single silk thread is stably hooked and separated from a entangled and adhered silk curtain, effectively preventing the single silk thread from easily detaching from the wire-taking nozzle, which is conducive to improving the wire-taking efficiency of the wire-taking nozzle.

[0026] Since the thickness of silk threads of the same specification may vary, in order to ensure that the silk suction nozzle can adapt to silk threads of different thicknesses, in the technical solution of the present invention, a first inclined wall surface is provided on the side of the second side wall close to the first side wall, so that the cross-section of the joint along the direction from the first side wall to the second side wall is a trapezoidal structure, so that a wider accommodating area is formed in the upper half of the joint, and a narrower accommodating area is formed in the lower half of the joint. When a thinner silk thread slides into the hook joint, the silk thread will be stuck in the narrower accommodating area of ​​the lower part of the hook joint. When a thicker silk thread slides into the hook joint, the silk thread will be stuck in the wider accommodating area of ​​the upper part of the hook joint, so that the hook joint can be compatible with silk threads of different thicknesses. Moreover, since the hook joint adopts a gradual width design, both thinner and thicker silk threads can be stably hooked in the hook joint, and will not be unable to be filled into the hook joint due to the thick silk thread. Therefore, the wire extraction nozzle has better adsorption stability for silk threads of different thicknesses, thereby improving the wire extraction efficiency and applicability of the wire extraction nozzle.

[0027] The wire taking device using the wire taking nozzle can take wires with certain thickness differences, ensure the adsorption stability of the wires, and solve the technical problem of entangled and stuck wires being difficult to separate, which is beneficial to improving the wire taking efficiency of the wire taking device. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] 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 or the description of the prior art 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 the structures shown in these drawings without paying creative work.

[0029] Figure 1 An isometric view of the overall structure of a wire-taking nozzle provided in one embodiment of the present invention;

[0030] Figure 2 A front view of the overall structure of a wire-taking nozzle provided in one embodiment of the present invention;

[0031] Figure 3 A front view of the overall structure of a wire-taking nozzle provided by another embodiment of the present invention;

[0032] Figure 4 A structural isometric view of an opening portion of a wire-taking suction nozzle provided in one embodiment of the present invention;

[0033] Figure 5 A structural front view of an opening portion of a wire taking suction nozzle provided in one embodiment of the present invention;

[0034] Figure 6 A force diagram of a target silk thread in a silk taking nozzle provided in one embodiment of the present invention;

[0035] Figure 7 A force diagram of a non-target silk thread in a silk extraction nozzle provided in one embodiment of the present invention.

[0036] Description of Figure Numbers:

[0037] 100, opening;

[0038] 110, bottom wall; 120, first side wall; 130, second side wall;

[0039] 121, adsorption wall surface; 122, guide wall surface; 123, second inclined wall surface; 124, notch portion;

[0040] 131, a first inclined wall surface;

[0041] 200, grouting;

[0042] 300, target thread;

[0043] 400, non-target silk thread;

[0044] X, first direction;

[0045] Y, second direction.

[0046] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0047] 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.

[0048] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0049] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or", "and / or" or "and / or" appears in the full text, its meaning includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in the field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0050] The existing wire-taking devices of the harness drawing equipment mainly adopt two types: negative pressure suction nozzle wire-taking device and twisting wire-taking device. Among them, the negative pressure suction nozzle wire-taking device mainly generates vacuum negative pressure at the suction nozzle through a vacuum generator, and uses the vacuum negative pressure to achieve the purpose of adsorbing the silk thread. After that, the wire-taking device will quickly separate the silk thread from the silk curtain to the target position to achieve the silk taking effect.

[0051] In the above-mentioned wire-taking process, for wires with different thicknesses, for example, the thickness of a certain wire itself varies to a certain extent (the thickness varies at different positions or the thickness of the wire is greatly affected by tension); or a multi-layer wire curtain, the thickness of the wires in the two layers of the wire curtain is similar but also has certain differences. The suction nozzle of the existing wire-taking device cannot be well compatible with such wires with certain thickness differences when taking wires, resulting in poor adsorption stability of the suction nozzle for wires of different thicknesses, which ultimately affects the wire-taking efficiency.

[0052] In the above-mentioned wire taking process, the wires in the wire curtain may be entangled or stuck together. When the suction nozzle of the existing wire taking device utilizes vacuum negative pressure to take wires, the adsorption force of the wires by vacuum negative pressure alone is limited, and the entangled and stuck wires cannot be well separated, which may result in taking multiple wires or empty wires, greatly affecting the production efficiency of the threading equipment.

[0053] Based on this, in order to solve the technical problems that the suction nozzle of the existing wire-taking device cannot be well compatible with wires of different thicknesses, resulting in poor adsorption stability of the suction nozzle for wires of different thicknesses and difficulty in separating entangled and adhered wires, reference is made to Figure 1 and Figure 2 An embodiment of the present invention provides a wire-taking suction nozzle, which is provided with an opening 100, and the opening 100 includes a bottom wall 110, a first side wall 120, and a second side wall 130, wherein the first side wall 120 is connected to one end of the bottom wall 110, and the second side wall 130 is connected to the other end of the bottom wall 110, and the second side wall 130 and the first side wall 120 are arranged opposite to each other, and a first inclined wall surface 131 is arranged on a side of the second side wall 130 close to the first side wall 120, and the first inclined wall surface 131 is inclined from an end away from the bottom wall 110 to an end close to the bottom wall 110 toward a direction close to the first side wall 120. A hooking seam 200 is formed between the bottom wall 110, the first side wall 120, and the second side wall 130, for example, the hooking seam 200 can be extended along a straight line, so as to facilitate hooking a single wire by using the hooking seam 200.

[0054] Specifically, in the present embodiment, when a single silk thread is hooked by the wire-taking nozzle, first the opening 100 of the wire-taking nozzle will move to the side of the silk curtain, and the first side wall 120 of the wire-taking nozzle will contact and squeeze the silk curtain, so that the single silk thread slides into the hooking slit 200, and the single silk thread can be stably hooked by the hooking slit 200. Then the wire-taking nozzle will move in the direction away from the silk curtain, and the single silk thread that falls into the hooking slit 200 will be blocked by the first side wall 120 and the second side wall 130, and will be separated from the silk curtain as the wire-taking nozzle moves away from the silk curtain. The wire-taking nozzle provided in the present embodiment can ensure that a single silk thread is stably hooked from a tangled and adhered silk curtain, effectively preventing a single silk thread from easily detaching from the wire-taking nozzle, which is conducive to improving the wire-taking efficiency of the wire-taking nozzle.

[0055] Since the thickness of silk threads of the same specification may vary, in order to ensure that the wire taking nozzle can adapt to silk threads of different thicknesses, in the present embodiment, a first inclined wall surface 131 is provided on the side of the second side wall 130 close to the first side wall 120, so that the cross-section of the joint 200 along the direction from the first side wall 120 to the second side wall 130 is a trapezoidal structure, so that a wider accommodating area is formed in the upper half of the joint 200, and a narrower accommodating area is formed in the lower half of the joint 200. When a thinner silk thread slides into the grout 200, the silk thread will be stuck in the narrower accommodating area of ​​the lower half of the grout 200. When a thicker silk thread slides into the grout 200, the silk thread will be stuck in the wider accommodating area of ​​the upper half of the grout 200. This allows the grout 200 to be compatible with silk threads of different thicknesses. Moreover, since the grout 200 adopts a gradual width design, both thinner and thicker silk threads can be stably hooked in the grout 200, and will not be unable to be filled into the grout 200 due to the thick silk thread. Therefore, the wire extraction nozzle has better adsorption stability for silk threads of different thicknesses, thereby improving the wire extraction efficiency and applicability of the wire extraction nozzle.

[0056] Furthermore, in some embodiments, an arcuate groove may be provided on one side of the first side wall 120 close to the second side wall 130, that is, an arcuate groove may be provided on one side of the first side wall 120 and the second side wall 130, and the arcuate groove may pass through from one end of the first side wall 120 to the other end opposite to the first side wall 120. When a single wire is hooked in the hooking gap 200, the single wire can slide into the arcuate groove to further improve the adsorption stability of the wire extraction nozzle on the single wire, prevent the single wire from detaching from the wire extraction nozzle, and improve the wire extraction efficiency.

[0057] Furthermore, in some embodiments, the wire suction nozzle can be driven by a driving mechanism (exemplarily, for example, the driving mechanism can be a driving motor, or the driving mechanism can also be a driving cylinder), and the driving mechanism can drive the wire suction nozzle to move to the side of the wire curtain so that a single wire can be sucked from the wire curtain using the wire suction nozzle.

[0058] In some embodiments, a suction wall 121 is provided on the side of the bottom wall 110 facing the grout 200, and the suction wall 121 is provided with suction holes. Preferably, the width D3 of the suction wall 121 and the thickness parameter S1 of a single wire satisfy: 0.5S1≤D3≤1.5S1. Exemplarily, for example, the value of D3 can be 0.5S1, 0.8S1, 1.0S1, 1.3S1, 1.5S1, and so on.

[0059] In other embodiments, the adsorption holes may also be disposed on the side of the first side wall 120 facing the second side wall 130 , or the adsorption holes may also be disposed on the side of the second side wall 130 facing the first side wall 120 .

[0060] It should be noted that in the relevant field, the count S (English count), count D (Daniel), number Tex, etc. of the silk thread can be used to characterize the thickness of a single silk thread. For the convenience of explanation, this application describes the relevant features in conjunction with the count S. In actual working conditions, the thickness of the silk thread is not only related to the size of the count S, but is actually related to the tension of the silk thread, the temperature and humidity of the environment, etc. The thickness parameter S1 of the single silk thread described in this application excludes other factors and only considers the size of the silk thread count S. When the silk curtain is ready, it is a parameter that characterizes the thickness of the silk thread. It is only used to explain the thickness of the silk thread, size comparison, etc. in the text. It should be noted that the thickness parameter S1 of a single silk thread is negatively correlated with the count S. The larger the count S value, the smaller the thickness parameter S1 value, and the thinner the silk thread. In actual engineering applications, it needs to be corrected according to specific working conditions.

[0061] Specifically, in this embodiment, since the adsorption wall 121 generates an adsorption negative pressure, when the wire-taking suction nozzle moves to the side of the wire curtain, the wires in the wire curtain will fall into the hooking gap 200 after being adsorbed by the adsorption negative pressure, and will be firmly adsorbed on the adsorption wall 121. When the wire-taking suction nozzle moves away from the wire curtain, the sucked wires will be separated from the wire curtain, so that the wire-taking suction nozzle can take the wires.

[0062] The above relationship is satisfied between the width of the adsorption wall 121 and the number of single silk threads. On the one hand, it can ensure that the adsorption wall 121 can only adsorb 1-2 thinner silk threads at a time, or ensure that the adsorption wall 121 can only adsorb 1 thicker silk thread at a time, so that the adsorption wall 121 can be compatible with silk threads of different thicknesses at the same time, which is conducive to hooking silk threads of different thicknesses in the hooking seam 200 to maintain the stability of the wire taking nozzle when taking out silk; on the other hand, it can avoid the overlapping and accumulation of multiple silk threads in the hooking seam 200 due to the adsorption of multiple silk threads by the adsorption wall 121 at a time, thereby affecting the effect of taking out a single silk thread at a time.

[0063] Furthermore, in some embodiments, the wire suction nozzle can be connected to a vacuum generator, and a vacuum negative pressure can be generated at the adsorption wall surface 121 through the vacuum generator, so as to achieve the purpose of adsorbing a single wire by using the vacuum negative pressure.

[0064] In some embodiments, reference Figures 1 to 3 A guide wall surface 122 is disposed on one side of the first side wall 120 away from the second side wall 130 , and the guide wall surface 122 is inclined from one end close to the bottom wall 110 to one end away from the bottom wall 110 toward a direction close to the second side wall 130 .

[0065] Specifically, in this embodiment, on the one hand, the guide wall 122 can guide the silk threads in the silk curtain, so that the silk threads can more easily slide toward the adsorption wall 121 and be adsorbed by the adsorption wall 121, thereby realizing stable silk collection by the silk collection nozzle; on the other hand, the guide wall 122 can separate the silk threads in the silk curtain, so that the silk threads in the silk curtain can be arranged in an orderly manner on the guide wall 122, avoiding the silk threads in the silk curtain from piling up, thereby facilitating the separation of single silk threads from the silk curtain.

[0066] Furthermore, in some embodiments, the guide wall surface 122 and the adsorption wall surface 121 may be smoothly transitionally connected so that the wire can slide into the grouting 200 along the guide wall surface 122 .

[0067] In some embodiments, reference Figures 1 to 3 Preferably, along the direction from the first side wall 120 to the second side wall 130, the angle α between the guide wall surface 122 and the bottom wall 110 satisfies: 30°≤α≤60°. For example, the value of α can be 30°, 45°, 60°, etc.

[0068] Specifically, in the present embodiment, the angle between the guide wall 122 and the bottom wall 110 is set within the above-mentioned range. On the one hand, it is possible to avoid the angle between the guide wall 122 and the bottom wall 110 being too small (exemplarily, for example, the angle between the guide wall 122 and the bottom wall 110 is set to 10°, 15°, 25°, etc.), which results in the inclination angle of the guide wall 122 being too small, so that the guide wall 122 cannot effectively separate the silk threads in the silk curtain; on the other hand, it is possible to avoid the angle between the guide wall 122 and the bottom wall 110 being too large (exemplarily, for example, the angle between the guide wall 122 and the bottom wall 110 is set to 70°, 80°, 85°, etc.), which results in the inclination angle of the guide wall 122 being too large, so that the guide wall 122 cannot effectively guide the silk threads in the silk curtain to the adsorption wall 121.

[0069] In some embodiments, reference Figure 5 Preferably, the depth D1 of the grouting 200 and the thickness parameter S1 of a single wire satisfy: 1.5S1≤D1≤2S1. For example, the value of D1 may be 1.5S1, 1.75S1, 2S1, and so on.

[0070] Specifically, in the present embodiment, the depth of the joint 200 and the thickness of a single silk thread satisfy the above-mentioned relationship. On the one hand, the joint 200 can be compatible with silk threads of different thicknesses, so that silk threads of different thicknesses can be stably hooked in the joint 200 (because if the silk thread is thicker, the silk thread will not be completely filled to the bottom of the joint 200, but will hang in the middle position or even the upper part of the joint 200, so setting the depth of the joint 200 within the above-mentioned range can ensure that the joint 200 can adapt to and stably hook silk threads of different thicknesses); on the other hand, it can avoid overlapping multiple silk threads in the joint 200 at a time, so that the silk taking nozzle can only take out a single silk thread at a time, which is beneficial to improving the silk taking effect and efficiency of the silk taking nozzle.

[0071] In other words, if the depth of the grout 200 is set too shallow (for example, the depth of the grout 200 is set to S1, 1.2S1, 1.4S1, 1.6S1, 1.8S1, etc.), the thicker silk thread cannot be stably fixed in the grout 200, so that the thicker silk thread is very easy to be separated from the grout 200, affecting the efficiency of wire extraction. If the depth of the grout 200 is set too deep (for example, the depth of the grout 200 is set to 2.5S1, 3S1, 3.5S1, 4S1, 4.5S1, etc.), whether it is for a thicker silk thread or a thinner silk thread, it is very easy to overlap multiple silk threads in the grout 200, so that the grout 200 is filled with multiple silk threads, which is not conducive to separating a single silk thread.

[0072] Further, the following is an analysis of the wire-taking process of the wire-taking nozzle in combination with actual application conditions. When two wires are adsorbed in the hook 200 of the wire-taking nozzle (usually two wires are twisted together), after the wire-taking nozzle is away from the wire curtain for a distance, refer to Figure 6 , the force analysis of the adsorbed target yarn shows that the target yarn is subjected to the adsorption force F1 of the bottom wall 110 of the hook 200, the support force F2 of the side wall of the hook 200, and the rebound force F3 generated by the tension of the target yarn itself (in the process of the silk-taking suction nozzle moving away from the silk curtain, if the silk threads that stick together are not separated from the adsorbed target silk thread 300, the force of the silk threads that stick together with the target silk thread 300 on the target silk thread 300 can be integrated into F3). It can be seen from the force diagram that as long as the component of the rebound force F3 in the direction of the adsorption force F1 is less than the adsorption force F1, the target silk thread 300 will remain filled in the hook 200 and will not fall off. Since the distance between the silk-taking suction nozzle and the plane where the silk curtain is located is very small, the component of the rebound force F3 in the direction of the adsorption force F1 will also be very small. Although the rebound force F3 will continue to increase as the distance of the silk-taking suction nozzle away from the silk curtain continues to increase, it is also completely sufficient to support the target yarn to be pulled to the target position.

[0073] Reference Figure 7, and then the force analysis is performed on the non-target wire 400 that is stuck to the target wire 300. The non-target wire 400 is subjected to the winding force F4 of the target wire 300 and the rebound force F5 of the non-target wire 400 itself. It can be seen from the force diagram that when the rebound force F5 is not large, the non-target wire 400 can maintain a force balance under the action of the winding force F4, so that the non-target wire 400 can maintain a state of adhesion with the target wire 300. When the wire-taking suction nozzle is away from the wire curtain for a certain distance, the rebound force F5 increases to a certain extent. Since the winding force F4 basically does not change, the rebound force F5 and the winding force F4 cannot maintain a force balance state at this time. Under the action of the rebound force F5, the non-target wire 400 and the target wire 300 will be separated, ensuring that only a single wire can be hooked in the hooking seam 200 of the wire-taking suction nozzle at a time.

[0074] In some embodiments, reference Figure 5 Preferably, along the direction from the first side wall 120 to the second side wall 130, the width D4 of the end of the grout 200 away from the bottom wall 110 and the thickness parameter S1 of the single wire satisfy: S1≤D4<2S1. Exemplarily, for example, the value of D4 can be S1, 1.3S1, 1.5S1, 1.7S1, 1.9S1, etc.

[0075] Specifically, in the present embodiment, the width of the maximum opening of the grout 200 is set within the above-mentioned range (it is understandable that the silk thread will slide into the grout 200 from the maximum opening and be hooked in the grout 200). On the one hand, it is ensured that the maximum opening of the grout 200 can accommodate a single silk thread, so that the single silk thread can slide into the grout 200 from the maximum opening of the grout 200, thereby realizing the stable hooking of the single silk thread by the grout 200, and it is ensured that the maximum opening of the grout 200 can better be compatible with single silk threads of different thicknesses (because even in the same type of silk threads, there will be deviations in the thickness of the silk threads); on the other hand, it is ensured that the maximum opening of the grout 200 cannot accommodate two or more silk threads at the same time, so that two or more silk threads will be stuck outside the grout 200 due to the opening gap, so that the grout 200 can only hook a single silk thread at a time, thereby improving the silk extraction effect.

[0076] In some embodiments, reference Figure 1 and Figure 4 , the direction from the first side wall 120 to the second side wall 130 is the first direction X, the direction perpendicular to the adsorption wall surface 121 is the second direction Y, and the two ends of the first side wall 120 are provided with notch portions 124 along the direction perpendicular to the first direction X and the second direction Y. In other words, along the length direction of the first side wall 120, the two ends of the first side wall 120 are provided with notch portions 124. Exemplarily, for example, the notch portion 124 may be a square structure notch, and the notch portion 124 may also be a trapezoidal structure notch.

[0077] Specifically, in this embodiment, since a single silk thread needs to be pulled from the silk curtain to the target position during the process of the silk taking nozzle, as the silk taking nozzle continues to move away from the silk curtain, the silk thread will be sunken in the middle and warped on both sides under the action of tension, so that the silk thread is easy to slip out from the two side edges of the first side wall 120 when it is away from the silk curtain, thereby detaching from the silk taking nozzle, affecting the silk taking efficiency. By setting the notch 124 at both ends of the first side wall 120, the notch 124 can directly resist and restrict the silk thread at the two end edges of the first side wall 120, preventing the silk thread from slipping out of the hook 200, ensuring that the silk thread will not fall off from the silk taking nozzle before moving to the target position, which is conducive to improving the silk taking efficiency.

[0078] In some embodiments, reference Figure 4 Preferably, along the direction perpendicular to the first direction X and perpendicular to the second direction Y, the length L1 of the notch 124 and the length L2 of the first side wall 120 satisfy: 1 / 10≤L1 / L2≤1 / 8. Exemplarily, for example, the value of L1 / L2 can be 1 / 10, 1 / 9, 1 / 8, etc.

[0079] Specifically, in the present embodiment, the length ratio of a single notch portion 124 on the first side wall 120 is set within the above-mentioned range. On the one hand, it can prevent the notch portion 124 from being too long, resulting in the notch portion 124 length ratio on the first side wall 120 being too large, making the solid portion of the first side wall 120 too small, which is not conducive to utilizing the hooking seam 200 to hook the silk thread; on the other hand, it can prevent the notch portion 124 from being too short, resulting in the notch portion 124 length ratio on the first side wall 120 being too small, making the solid portion of the first side wall 120 too large, which is not conducive to utilizing the notch portion 124 at both end edges of the first side wall 120 to resist and limit the silk thread, thereby making it not conducive to the silk thread being stably hooked in the hooking seam 200.

[0080] In some embodiments, reference Figure 3 A second inclined wall surface 123 is disposed on one side of the first side wall 120 close to the second side wall 130, and the second inclined wall surface 123 is inclined from one end away from the bottom wall 110 to one end close to the bottom wall 110 toward the direction close to the second side wall 130. Exemplarily, for example, along the direction from the first side wall 120 to the second side wall 130, the cross section of the grouting 200 may be an isosceles trapezoidal structure.

[0081] Specifically, in this embodiment, as the wire suction nozzle continues to move, the wire will slide along the second inclined wall 123 into the hooking joint 200 and be stably adsorbed on the adsorption wall 121. In addition, by providing the second inclined wall 123, it is beneficial for the hooking joint 200 to be compatible with wires of different thicknesses, so that wires of different thicknesses can be stably hooked in the hooking joint 200.

[0082] Correspondingly, another embodiment of the present invention further provides a wire taking device, which includes the wire taking nozzle in any of the above embodiments. The wire taking device also includes a vacuum generator and a driving mechanism, the vacuum generator is connected to the wire taking nozzle, the vacuum generator is configured to draw a vacuum into the wire taking nozzle so that the adsorption wall 121 of the wire taking nozzle produces a vacuum negative pressure, and the driving mechanism is connected to the wire taking nozzle, and the driving mechanism is configured to drive the wire taking nozzle to move toward or away from the wire curtain. Exemplarily, for example, the driving mechanism can be a driving motor, or the driving mechanism can also be a driving cylinder.

[0083] Specifically, in the present embodiment, the wire-taking suction nozzle is connected to the vacuum generator. Under the action of the vacuum generator, the adsorption wall 121 of the wire-taking suction nozzle will generate a vacuum negative pressure, and the adsorption wall 121 can be used to absorb a single silk thread. When taking the silk, driven by the driving mechanism, the wire-taking suction nozzle will first move in the direction close to the silk curtain. When it moves to the silk curtain, the wire-taking suction nozzle will slightly press the silk thread. Under the action of the adsorption wall 121, the single silk thread will be hooked in the hooking seam 200 of the wire-taking suction nozzle, thereby completing the absorption of the silk thread. After the silk is taken, driven by the driving mechanism, the wire-taking suction nozzle will move in the direction away from the silk curtain. During the movement, the hooking seam 200 will hook the silk thread similar to the action of a hook, so that the silk thread can be stably pulled from the silk curtain to the target position, thereby completing the separation of the single silk thread from the silk curtain.

[0084] The wire taking device using the wire taking suction nozzle can take wires of different thicknesses and ensure the adsorption stability of wires of different thicknesses, which is beneficial to improving the wire taking efficiency of the wire taking device.

[0085] Benefiting from the improvement of the above-mentioned wire taking suction nozzle, the wire taking device of this embodiment has the same technical effect as the above-mentioned wire taking suction nozzle, which will not be described in detail here.

[0086] It should be noted that other contents of the wire taking nozzle and the wire taking device disclosed in the present invention can be found in the prior art and will not be described in detail here.

[0087] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention's specification and drawings, or directly / indirectly applied in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A wire taking nozzle, characterized in that: For sucking a single silk thread, the silk suction nozzle is provided with an opening portion, and the opening portion includes: bottom wall; a first side wall connected to one end of the bottom wall; a second side wall, the second side wall being connected to the other end of the bottom wall, and the second side wall and the first side wall being arranged opposite to each other, a first inclined wall surface being arranged on a side of the second side wall close to the first side wall, and the first inclined wall surface being arranged inclined from an end away from the bottom wall to an end close to the bottom wall toward a direction close to the first side wall; Wherein, a joint is formed between the bottom wall, the first side wall and the second side wall.

2. The wire suction nozzle according to claim 1, characterized in that: The bottom wall is provided with an adsorption wall surface on one side facing the grouting, and the adsorption wall surface is provided with adsorption holes; The width D3 of the adsorption wall and the thickness parameter S1 of the single thread satisfy the following relationship: 0.5S1≤D3≤1.5S1.

3. The wire taking nozzle according to claim 1, characterized in that: A guide wall surface is disposed on a side of the first side wall away from the second side wall, and the guide wall surface is inclined from an end close to the bottom wall to an end away from the bottom wall toward a direction close to the second side wall.

4. The wire taking nozzle according to claim 3, characterized in that: Along the direction from the first side wall to the second side wall, an angle α between the guide wall surface and the bottom wall satisfies: 30°≤α≤60°.

5. The wire taking nozzle according to claim 1, characterized in that: The depth D1 of the grouting and the thickness parameter S1 of the single wire satisfy the following condition: 1.5S1≤D1≤2S1.

6. The wire taking nozzle according to claim 1, characterized in that: Along the direction from the first side wall to the second side wall, a width D4 of the end of the grouting away from the bottom wall and a thickness parameter S1 of the single wire satisfy the following relationship: S1≤D4<2S1.

7. The wire taking nozzle according to claim 1, characterized in that: A suction wall is provided on the side of the bottom wall facing the grout, the direction from the first side wall to the second side wall is the first direction, the direction perpendicular to the suction wall is the second direction, and notches are provided at both ends of the first side wall along the directions perpendicular to the first direction and the second direction.

8. The wire taking nozzle according to claim 7, characterized in that: Along a direction perpendicular to the first direction and perpendicular to the second direction, a length L1 of the notch portion and a length L2 of the first side wall satisfy: 1 / 10≤L1 / L2≤1 / 8.

9. The wire taking nozzle according to claim 1, characterized in that: A second inclined wall surface is disposed on a side of the first side wall close to the second side wall, and the second inclined wall surface is inclined from an end away from the bottom wall to an end close to the bottom wall toward a direction close to the second side wall.

10. A wire taking device, characterized in that: include: The wire taking nozzle according to any one of claims 1 to 9; A vacuum generator, the vacuum generator is connected to the wire-taking suction nozzle, and the vacuum generator is configured to draw a vacuum into the wire-taking suction nozzle so that a vacuum negative pressure is generated on the adsorption wall surface of the wire-taking suction nozzle; A driving mechanism is connected to the wire taking suction nozzle, and the driving mechanism is configured to drive the wire taking suction nozzle to move toward or away from the wire curtain.

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