A circular loom

Abstract

The present invention discloses a circular loom, belonging to the field of circular looms, and solves the problem that a jumper, when forced to swing outward and contact a support rod, easily bounces back in the opposite direction, resulting in unstable electrical conduction and preventing the circular loom from being shut down in time. The technical solution to this problem mainly comprises a jumper rotatably connected to a first support rod, one end of the jumper elastically connected to a second support rod and electrically connected to the second support rod, the first support rod, the second support rod, and the support rod are all fixed in a ring shape on an archway, the support rod is arranged outside the jumper, and the inner surface of the support rod is provided with contact teeth protruding in the direction of the jumper, the contact teeth are arranged along the length of the support rod, and tooth grooves are formed between two adjacent contact teeth in the length direction of the support rod, and the groove bottoms of the jumper and the tooth grooves are staggered in the radial direction of the support rod. When forced to swing in the direction of the support rod, the jumper slides into the tooth groove along the side of the contact teeth, thereby electrically connecting the support rod and the second support rod. The present invention is mainly used to ensure the stability of electrical conduction after the jumper is activated.

Description

Technical Field

[0001] The invention relates to the field of circular looms, in particular to a circular loom. Background Art

[0002] As a component of a circular loom, the jumper is mainly used to automatically stop the circular loom when the warp is used up or broken. For a specific implementation method, reference may be made to the prior art CN201933263U, which discloses a device for automatically stopping a plastic circular loom when the warp is broken, comprising an archway (1), a jumper (3), a jumper support rod (9), a spring (10), and a spring support rod (11). The outer end of the jumper (3) is provided with a circumferentially arranged conductive tube (4), and an insulating ring (5) is wrapped around the conductive tube (4) to fix it on the archway (1). The small hole at the upper end of the jumper (3) hooks the warp (2). When the warp (2) breaks, the jumper (3) bounces toward the conductive tube (4) and contacts it, forming an energized circuit. The conductive tube (4) is a thin-walled metal tube. In actual application, a large amount of plastic dust is generated due to friction during the transportation and weaving of the plastic flat wire, which Figure 1 It can be seen that the diameter of the conductive tube cross section is relatively large, resulting in a larger outer surface of the conductive tube. Plastic dust is easily attached to and deposited on the outer surface of the conductive tube. Over time, a layer of dust structure will form on the outer surface of the conductive tube. If it is not cleaned in time, the jumper rod and the conductive tube will not be in good contact. This is also taken into consideration in the above-mentioned prior art. Therefore, the conductive tube is made of a thin-walled metal tube. However, it does not completely overcome the problem that the jumper rod and the conductive tube may not be in good contact if the conductive tube is not cleaned in time.

[0003] For example, the prior art CN109023666A discloses a wire breakage shutdown device for a plastic circular loom, which includes an archway. There are several archways distributed in a circular pattern, and jumpers, jumper support rods, springs, and spring support rods are provided between adjacent archways. The jumper is sleeved on the jumper support rod, one end of the spring is connected to the lower end of the jumper, and the other end is connected to the spring support rod. An annular insulating support rod is provided on the outside of the jumper, and several sections of conductive film are provided on the insulating support rod along its circumference for contacting the jumper when the warp breaks. By configuring the conductive film, the polarity of the film and the jumper simply needs to be opposite. When a warp breaks, the jumper contacts the film, automatically shutting down the machine. Since the film is mounted on the insulating support rod, the travel distance between the jumper and the film is short, enabling rapid shutdown. Furthermore, by arranging the film into several sections, it is only necessary to energize each section separately. The number of sections can be customized based on user needs. This way, when a warp breaks in a certain area, the jumper in that area will contact the corresponding film, allowing for rapid identification of the region of breakage. Furthermore, the conductive film has high sensitivity, enabling rapid shutdown and excellent stability. However, in practice, the jumper, when forced to swing outward and contact the film, easily bounces back, resulting in poor contact between the jumper and the film and preventing timely shutdown. Furthermore, the conductive film is located on the outer surface of the insulating support rod, which also has a relatively large surface area. Plastic dust also easily adheres to and deposits on the outer surface of the film. Over time, a dust layer forms on the outer surface of the film. If not cleaned promptly, poor contact between the jumper and the film can occur. Summary of the Invention

[0004] The purpose of the present invention is to provide a circular loom that solves the problem that the jumping rod is easily bounced in the opposite direction after being forced to swing outward and contact the support rod, resulting in unstable electrical conduction and unable to stop the circular loom in time, ensures the stability of electrical conduction between the jumping rod and the support rod after the action of the jumping rod, and ensures that the circular loom can be stopped in time after the warp is broken or completed.

[0005] The cam is fixed to the frame, and a plurality of archways are distributed and fixed along the circumference of the chassis. A jumping rod assembly is installed on the archway, and the jumping rod assembly includes a jumping rod, a first support rod, a second support rod and a support rod, and the jumping rod is rotatably connected to the first support rod, and one end of the jumping rod is elastically connected to the second support rod and is electrically conductive to the second support rod. The first support rod, the second support rod and the support rod are all fixed on the archway to form a ring, and the support rod is arranged on the outer side of the jumping rod. The inner ring surface of the support rod is provided with contact teeth protruding in the direction of the jumping rod, the contact teeth are arranged along the length direction of the support rod, and tooth grooves are formed between two adjacent contact teeth in the length direction of the support rod, and the jumping rod and the tooth groove bottom are staggered in the radial direction of the support rod. The jumping rod is forced to swing in the direction of the support rod and slide into the tooth groove along the side of the contact teeth to electrically connect the support rod and the second support rod.

[0006] After adopting the above technical solution, the present invention has the following advantages: the side surfaces of the contact teeth can provide guidance for the jumper rod, and when the jumper rod is forced to swing outward, it will slide along the side surfaces of the contact teeth into the tooth groove, extending the contact time between the jumper rod and the support rod, making the contact more stable and reliable, further ensuring that the jumper rod is in stable contact with the contact teeth and electrically conductive, enabling the circular loom to be shut down in a timely manner after a warp is broken or completed, and preventing the jumper rods from colliding with each other, resulting in warp entanglement, etc. In addition, the side surfaces of the contact teeth are relatively small and are not prone to dust accumulation. Even if dust adheres to the side surfaces of the contact teeth, the jumper rod can slide along the side surfaces of the contact teeth to scrape off the dust on the side surfaces of the contact teeth. Larger dust particles will also fall off by themselves due to gravity and vibration during the operation of the circular loom, further improving the stability of electrical conductivity. The jumper is radially offset from the bottom of the tooth slot in the support rod's direction. This means there is a circumferential spacing S between the jumper's outward movement toward the support rod and the bottom of the tooth slot. This ensures that the jumper first contacts the side of the contact tooth when it swings outward, ensuring a longer contact time between the jumper and the contact tooth. This significantly improves the stability of the electrical connection between the jumper and the support rod after the jumper moves. The jumper will not directly move to the bottom of the tooth slot and rebound, which would lead to unstable electrical connection between the jumper and the support rod. If the warp is disconnected or exhausted, the circular loom can be shut down and an alarm can be issued immediately, reducing material waste.

[0007] Furthermore, one or both sides of the contact teeth are provided with guide contact surfaces that contact and guide the jumper into the tooth slots. The guide contact surfaces extend from the direction of the jumper to the direction of the support rod and extend outward from the contact teeth. Using this technical solution, the jumper slides along the guide contact surfaces, and during this sliding process, the jumper and the guide contact surfaces contact and achieve electrical conduction. This sliding contact prolongs the contact period, preventing the jumper from bouncing off after contact with the support rod, thereby improving the stability of the electrical conduction.

[0008] Furthermore, the guide contact surface extends along a straight line or an arc. With the aforementioned technical solution, the jumper slides along the guide contact surface, and during the sliding process, the jumper contacts the guide contact surface to achieve electrical conduction. The sliding contact prolongs the contact time, preventing the jumper from bouncing off after contact with the support rod, thereby improving the stability of the electrical conduction.

[0009] Furthermore, the support rod is provided with a ventilation pipe, an air inlet and an air outlet connected to the ventilation pipe, the air inlet is connected to an air source, the air outlet is arranged along the length direction of the support rod, and the air outlet is provided on the inner ring surface of the support rod, and the air outlet blows air to reduce the accumulation of dust on the inner ring surface of the support rod and the jumper. Using the above technical solution, the support rod is provided with a ventilation pipe, gas can flow in the ventilation pipe, the air inlet is connected to the air source to introduce gas into the ventilation pipe, so that a stable and continuous airflow environment is formed in the ventilation pipe, and under the influence of pressure, the air flow is forced to be blown out from the air outlet, blowing off the dust attached to and deposited on the inner ring surface of the support rod and the jumper and keeping them clean, ensuring good and reliable contact between the jumper and the inner ring surface of the support rod, ensuring that the jumper is in contact with the inner ring surface of the support rod under the action of elastic force after the warp is broken or completed to achieve stable electrical conduction, and ensuring that the circular loom can be quickly shut down after the warp is broken or completed. The arrangement of the air outlet along the length direction of the support rod is conducive to uniform airflow and multi-angle blowing, which improves the dust blowing effect and reduces dust residue. It can also reduce the weight of the support rod, reduce the manufacturing and transportation costs of the support rod, and make assembly easier.

[0010] Furthermore, the ventilation duct is located within the support rod, and the inner surface of the support rod is provided with a strip-shaped opening that forms an air outlet. The strip-shaped opening extends along the length of the support rod. This technical approach eliminates the problems of airflow concentration and dust accumulation caused by blind spots. Furthermore, the strip-shaped opening reduces the inner surface area of ​​the support rod, making dust less likely to accumulate, and larger dust particles will slide along the edges of the strip-shaped opening.

[0011] Furthermore, the contact teeth are distributed on the upper and lower edges of the strip-shaped opening. With this technical solution, the contact teeth guide the jumper rod along the side of the contact teeth into the tooth groove, while the strip-shaped opening blows out air to reduce dust accumulation on the inner surface of the support rod and the jumper rod, ensuring stable electrical conduction between the jumper rod and the support rod.

[0012] Furthermore, the contact teeth are distributed on the upper and lower side edges of the strip-shaped opening and the inner end spacing is W, the outer diameter of the cross section of the support rod is D, and W≤0.15D. The above-mentioned technical solution is adopted to ensure that the airflow blown out from the contact teeth can remove the dust attached to and accumulated on the inner ring surface of the support rod, and ensure the stability of electrical conduction after the jumping rod is activated. If W>0.15D, the inner end spacing of the contact teeth is too large, which will not only lead to a lower air outlet speed and a weaker dust removal effect, but also reduce the contact area between the jumping rod and the inner ring surface of the support rod, resulting in poor electrical contact after the jumping rod is activated.

[0013] Furthermore, the support rod is a one-piece ring structure with an inner hole forming a ventilation duct. The aforementioned technical solution facilitates processing, production, and installation, increasing efficiency and saving labor costs. The one-piece structure also lacks joints, providing superior strength and impact resistance, capable of withstanding the impact of the jumper breaking or swinging outward after completion, resulting in a longer service life. The ventilation duct can completely remove dust adhering to and depositing on the inner surface of the support rod and the jumper, improving the stability and reliability of electrical conduction after the jumper actuates.

[0014] Furthermore, the support rod includes a plurality of rod bodies, each of which is fixedly connected to at least one archway, and all the rod bodies are connected to form an annular structure, and all the rod bodies have inner holes and are connected to form a ventilation duct. By adopting the above-mentioned technical solution, the airflow can circulate in the ventilation ducts of all the rod bodies, blowing off the dust accumulated on the inner ring surface of each rod body, keeping the inner ring surface of the support rod clean, and ensuring the stability of electrical conduction after the jumping rod action. The length and volume of a single rod body are relatively small, which is not only convenient for processing and disassembly, but also in order to quickly determine which area of ​​the jumping rod corresponding to the warp is broken, different rod bodies can be electrically connected to different alarm circuits respectively, so that the jumping rod in the area corresponding to a certain rod body contacts the inner ring surface of the rod body, and the worker can use the alarm circuit to promptly determine which area of ​​the rod body corresponding to the warp is used up or broken.

[0015] Furthermore, the support rod includes multiple rods, each of which is fixedly connected to at least one archway. All rods are connected to form a ring structure. All rods have inner holes and form ventilation pipes. The inner holes are sealed at both ends of the rods, and each rod is provided with an air inlet and an air outlet. Using the above technical solution, the air intake and air outlet of each rod can be controlled separately. Rods with more dust accumulation can be filled with more gas and provided with more air outlets, while rods with less dust accumulation can be filled with less gas and provided with fewer air outlets. This reduces energy consumption while blowing away the dust.

[0016] Furthermore, the outer diameter of the cross section of the support rod is D, and the diameter of the air outlet is d, d = 0.1D ~ 0.2D. With the above technical solution, the circular hole-shaped air outlet is more convenient for forming a stable flow rate, evenly and stably blowing off the dust accumulated on the inner ring surface of the support rod, and the circular hole-shaped air outlet is simple to process; if d < 0.1D, the air outlet is too small, resulting in too little gas blown out of the air outlet, and the dust accumulated on the inner ring surface of the support rod cannot be completely blown off, affecting the electrical contact after the jump rod action; if d > 0.2D, the air outlet is too large, which will not only result in a lower air outlet speed and weaker dust removal effect, but also reduce the contact area between the jump rod and the inner ring surface of the support rod, resulting in poor electrical contact after the jump rod action, and also affect the stability of the jump rod, resulting in the jump rod being unable to quickly and stably contact with the inner ring surface of the support rod after the action, which is not conducive to rapid shutdown. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below in conjunction with the accompanying drawings:

[0018] Figure 1 A schematic diagram of a main machine in a circular loom of the present invention;

[0019] Figure 2 for Figure 1 Schematic diagram of the AA section;

[0020] Figure 3 Schematic diagram of the structure of the support rod (contact teeth);

[0021] Figure 4 Schematic diagram of the cross section of the support rod Figure 1 (Contact teeth);

[0022] Figure 5 Schematic diagram of contact teeth (I);

[0023] Figure 6 Schematic diagram of contact teeth (II);

[0024] Figure 7 Schematic diagram of contact teeth (3);

[0025] Figure 8 Schematic diagram of contact teeth (IV);

[0026] Figure 9 Schematic diagram of contact teeth (V);

[0027] Figure 10 Schematic diagram of the cross section of the support rod Figure 2 (Contact teeth);

[0028] Figure 11 Schematic diagram of the local structure of the support rod (the air outlet is a circular hole);

[0029] Figure 12A partially enlarged view of a circular loom according to the present invention;

[0030] Figure 13 The present invention is a schematic diagram of the installation of a jumper assembly in a circular loom. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings 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.

[0032] The terms "first," "second," and so on (if any) in the specification and claims of this invention are used to distinguish similar objects, not to describe a specific order or precedence. Even if "second" is used before a technical feature to distinguish it, it does not necessarily imply the presence of "first." It should be understood that, in this invention, "including," "having," and any variations thereof, are intended to cover non-exclusive inclusions. It should be understood that, in this invention, "plurality" refers to two or more. "And / or" is merely a description of an association between related objects, indicating that three possible relationships exist. For example, "X and / or Y" can mean: X exists alone, X and Y exist simultaneously, or Y exists alone. The character " / " generally indicates that the related objects are in an "or" relationship. "Including X, Y, and Z" means including all three of X, Y, and Z. "Including X, Y, or Z" means including one of X, Y, and Z. "Including X, Y, and / or Z" means including any one, any two, or any three of X, Y, and Z.

[0033] The following specific embodiments are used to describe the technical solution of the present invention in detail. The following specific embodiments can be combined or replaced with each other according to actual conditions, and the same or similar concepts or processes may not be described in detail in some embodiments.

[0034] like Figures 1 to 13As shown, the present invention provides a circular loom, including a main machine, which includes a frame, a chassis 5 and an archway 10. The chassis 5 is fixed to the frame, and a plurality of archways 10 are distributed and fixed along the circumference of the chassis 5. A jumper assembly is installed on the archway 10, and the jumper assembly includes a jumper 1, a first support rod 2, a second support rod 3 and a support rod 4. The jumper 1 is rotatably connected to the first support rod 2, and one end of the jumper 1 is elastically connected to the second support rod 3 and electrically conductive with the second support rod 3. The first support rod 2, the second support rod 3 and the support rod 4 are all on the archway. 10 is fixed in a ring shape, the support rod 4 is arranged on the outside of the jumper 1, and the inner ring surface of the support rod 4 is provided with contact teeth 43 protruding in the direction of the jumper 1. The contact teeth 43 are arranged along the length direction of the support rod 4, and a tooth groove 44 is formed between two adjacent contact teeth 43 in the length direction of the support rod 4. The groove bottom of the jumper 1 and the tooth groove 44 are staggered in the radial direction of the support rod. The jumper 1 is forced to swing in the direction of the support rod 4 and slide into the tooth groove 44 along the side of the contact teeth 43, thereby electrically conducting the support rod 4 and the second support rod 3.

[0035] In this embodiment, the side of the contact teeth 43 can provide guidance for the jumper 1. When the jumper 1 is forced to swing outward, it will slide along the side of the contact teeth 43 into the tooth groove 44, which prolongs the contact time between the jumper 1 and the support rod 4, making the contact more stable and reliable, and further ensuring that the jumper 1 is in stable contact with the contact teeth 43 and electrically conductive, so that the circular loom can be shut down in time after the warp is broken or completed, and prevent the jumpers 1 from colliding with each other, resulting in warp entanglement and other phenomena. In addition, the side of the contact teeth 43 is small and dust is not easily accumulated. Even if dust is attached to the side of the contact teeth 43, the jumper 1 can slide along the side of the contact teeth 43 to scrape off the dust on the side of the contact teeth 43. Larger dust will also fall off by itself due to gravity and the vibration of the circular loom during operation, further improving the stability of electrical conduction. The bottom of the groove of the jumper 1 and the tooth groove 44 are staggered in the radial direction of the support rod 4, which can be referred to. Figure 5 As shown, there is a circumferential spacing S between the direction in which the jumper 1 moves outward toward the support rod 4 and the bottom of the tooth slot 44. This ensures that when the jumper 1 swings outward, it first contacts the side of the contact tooth 43, ensuring a longer contact time between the jumper 1 and the contact tooth 43. This greatly improves the stability of the electrical connection between the jumper 1 and the support rod 4 after the jumper 1 moves. The jumper 1 will not directly move to the bottom of the tooth slot 44 and rebound, which would cause unstable electrical connection between the jumper 1 and the support rod 4. After the warp is disconnected or exhausted, the circular loom can be shut down and an alarm is issued immediately, reducing material waste.

[0036] Among them, the frame is the main supporting structure of the circular loom, which ensures the stable operation of the circular loom. The chassis 5 is fixed to the frame. The chassis 5 provides installation space for components such as the rocker arm and the main shaft. The archway 10 is used to support the fixed jumper assembly and cooperate with the chassis 5 to install the fixed door ring assembly and the heald assembly to ensure that the loom can work normally, keep the first support rod 2, the second support rod 3 and the support rod 4 stable and reliable, and ensure the stability of electrical conduction after the jumper 1 is activated. These are all existing technologies and will not be elaborated here.

[0037] like Figure 5 As shown, in one embodiment, a side surface of one side of the contact tooth 43 is provided with a guide contact surface 431 for contacting and guiding the jumping rod 1 to slide into the tooth groove 44, and the guide contact surface 431 extends from the direction of the jumping rod 1 to the direction of the support rod 4 and extends to the outside of the contact tooth 43 (for example, at Figure 5 The right side of the contact tooth 43 extends from left to right. The jumper 1 slides along the guide contact surface 431. During the sliding process, the jumper 1 contacts the guide contact surface 431 to achieve electrical conduction. The sliding contact prolongs the contact time, prevents the jumper 1 from being bounced off after contact with the support rod 4, and improves the stability of the electrical conduction.

[0038] like Figures 6 to 9 As shown, in another embodiment, the side surfaces on both sides of the contact tooth 43 are provided with guide contact surfaces 431 that contact and guide the jumping rod 1 to slide into the tooth groove 44, and the guide contact surfaces 431 extend from the direction of the jumping rod 1 to the direction of the support rod 4 and extend toward the outside of the contact tooth 43.

[0039] like Figures 5 to 7 As shown, the guide contact surface 431 can be selected to extend along a straight line. The contact path between the jumper 1 and the guide contact surface 431 is a straight line, which provides more precise guidance for the jumper 1 and guides the jumper 1 to accurately slide into the tooth groove 44.

[0040] like Figures 8 and 9 As shown, the guide contact surface 431 can also be extended along an arc. The contact path between the jumper 1 and the guide contact surface 431 is an arc. When the jumper 1 swings outward at the same angle, the contact path distance between the jumper 1 and the guide contact surface 431 can be longer, extending the contact time.

[0041] like Figures 3 and 4As shown, in order to increase the difficulty of dust accumulation on the guide contact surface 431, and further ensure the reliability and stability of the electrical conduction of the jumping rod 1 in contact with the inner ring surface of the support rod 4 under the action of elastic force after being broken or completed, in one embodiment, the support rod 4 is provided with a ventilation pipe 40, an air inlet 41 and an air outlet 42 connected to the ventilation pipe 40, the air inlet 41 is connected to the air source, the air outlet 42 is arranged along the length direction of the support rod 4, the air outlet 42 is provided on the inner ring surface of the support rod 4, and the air outlet 42 blows air to reduce the accumulation of dust on the inner ring surface of the support rod 4. The support rod 4 is provided with a ventilation duct 40, through which gas can flow. Specifically, the air inlet 41 is connected to the air source to introduce gas into the ventilation duct 40, thereby forming a stable and continuous airflow environment in the ventilation duct 40. Under the influence of pressure, the airflow is blown out from the air outlet 42, blowing off dust attached to and deposited on the inner surface of the support rod 4 and the guide contact surface 431 and keeping them clean. This ensures that the jumper 1 is in good and reliable contact with the inner surface of the support rod 4, ensuring that the jumper 1 is in contact with the inner surface of the support rod 4 under the action of elastic force after the warp is broken or completed, and achieving stable electrical conduction, thereby ensuring that the circular loom can be quickly shut down after the warp is broken or completed. The arrangement of the air outlet 42 along the length of the support rod 4 facilitates uniform and multi-angle airflow, improves the dust blowing effect, reduces dust residue, reduces the weight of the support rod 4, reduces the manufacturing and transportation costs of the support rod 4, and makes assembly easier.

[0042] To ensure smoother and more even blowing from the air outlet 42, in one embodiment, the ventilation duct 40 is disposed within the support rod 4. The inner surface of the support rod 4 is provided with a strip-shaped opening 421 forming the air outlet 42. The strip-shaped opening 421 extends along the length of the support rod 4. The strip-shaped opening 421 allows airflow to be evenly blown out from the inner surface of the support rod 4, resulting in a more uniform air flow and preventing problems such as concentrated airflow and dead corners that cause dust accumulation. In addition, the strip-shaped opening 421 reduces the inner surface area of ​​the support rod 4, making dust less likely to accumulate. Larger dust particles will also slide along the edges of the strip-shaped opening 421. The contact teeth are located on the upper and lower edges of the strip-shaped opening.

[0043] like Figure 4As shown, to ensure sufficient airflow to remove dust, in one embodiment, contact teeth are distributed along the upper and lower edges of the strip-shaped opening 421, with an inner end spacing of W. The cross-sectional outer diameter of the support rod 4 is D, and W ≤ 0.15D. W can be selected from 0.1D, 0.13D, 0.15D, etc., to ensure that the airflow from the contact teeth can remove dust adhering to and accumulating on the inner surface of the support rod, ensuring stable electrical conduction after the tripping rod is activated. If W is greater than 0.15D, the inner end spacing of the contact teeth is too large, resulting in not only a low airflow velocity and weak dust removal effect, but also reduced contact area between the tripping rod and the inner surface of the support rod, causing poor electrical contact after the tripping rod is activated. The upper and lower rows of contact teeth 43 extend inward while approaching each other, forming a tapered structure at the air outlet 42. This helps increase airflow velocity and the impact force of the airflow from the air outlet 42, effectively removing dust.

[0044] like Figure 10 As shown, the contact teeth 43 can also be mounted on the support rod 4 by welding or other methods.

[0045] To facilitate the production and installation of support rod 4, in one embodiment, support rod 4 is an integrated annular structure having an inner hole and forming a ventilation duct 40. This integrated annular structure facilitates processing, production, and installation, improving production and installation efficiency and saving labor costs. The integrated structure also has no joint gaps, providing superior strength and impact resistance, capable of withstanding the impact of breakage or outward swinging of jumper 1 after completion, resulting in a longer service life. Ventilation duct 40 can completely blow away dust adhering to and depositing on the inner surface of support rod 4, thereby improving the stability and reliability of electrical conduction after jumper 1 is actuated.

[0046] In one embodiment, the support rod 4 includes multiple rods, each of which is fixedly connected to at least one arch 10. All the rods are connected to form a ring structure, and all the rods have inner holes and are connected to form a ventilation duct. The length and volume of a single rod are relatively small, which not only facilitates processing and disassembly, but also allows different rods to be electrically connected to different alarm circuits to quickly determine which area of ​​the jumper 1 corresponds to the broken warp. In this way, when the jumper 1 in the area corresponding to a certain rod contacts the inner ring surface of the rod, workers can promptly determine which area of ​​the rod corresponding to the broken warp is exhausted or broken through the alarm circuit.

[0047] In another embodiment, the support rod 4 includes multiple rods, each of which is fixedly connected to at least one archway 10. All the rods are connected to form a ring structure. All the rods have inner holes and form a ventilation pipe 40. The inner holes are sealed at both ends of the rods. Each rod is provided with an air inlet 41 and an air outlet 42. The air intake and air outlet of each rod can be controlled separately. Rods with more dust accumulation can be filled with more gas and provided with more air outlets 42, while rods with less dust accumulation can be filled with less gas and provided with fewer air outlets 42. This reduces energy consumption while blowing away the dust.

[0048] To facilitate gas injection, in one embodiment, an air inlet connector 411 is provided at the bottom or outer side of the support rod 4, and the air inlet 41 is provided within the air inlet connector 411. The air inlet connector 411 facilitates connection to the gas source, strengthens the sealing of the air inlet 41, and prevents gas leakage. Centralized air intake also reduces the number of pipes and air inlet connectors 411, facilitates airflow control, and saves space.

[0049] In addition to configuring the air outlet 42 as a strip-shaped opening 421, in another embodiment, as Figure 11 As shown, a circular hole forming an air outlet 42 can also be provided on the inner ring surface of the support rod 4, the outer diameter of the cross section of the support rod 4 is D, the diameter of the air outlet 42 is d, d = 0.1D ~ 0.2D, d can be selected from 0.1D, 0.15D, 0.17D or 0.2D, etc. The circular hole-shaped air outlet 42 is more convenient for forming a stable flow rate, evenly and stably blowing off the dust accumulated on the inner ring surface of the support rod 4, and the circular hole-shaped air outlet 42 is simple to process; if d < 0.1D, the air outlet 42 is too small, resulting in an air outlet. The gas blown out of the air port 42 is too little, and the dust accumulated on the inner ring surface of the support rod 4 cannot be completely blown off, affecting the electrical contact after the jumper 1 is actuated; if d>0.2D, the air outlet 42 is too large, which will not only lead to a lower air outlet speed and a weaker dust removal effect, but also reduce the contact area between the jumper 1 and the inner ring surface of the support rod 4, resulting in poor electrical contact after the jumper 1 is actuated, and will also affect the stability of the jumper 1, resulting in the jumper 1 being unable to quickly and stably contact with the inner ring surface of the support rod 4 after actuation, which is not conducive to rapid shutdown.

[0050] like Figure 12 As shown, in order to guide the jumper 1 during movement and prevent adjacent jumpers 1 from colliding with each other, a first mounting rod 6 and a second mounting rod 7 can be provided on the frame of the circular loom. The first mounting rod 6 is located outside the jumper 1, and the second mounting rod 7 is located inside the jumper 1. The first mounting rod 6 and the second mounting rod 7 are connected to a partition 8 that separates the jumpers 1 one by one. The specific structure of the partition 8 can refer to the prior art CN206289364U.

[0051] The jumper 1 includes a metal rod 11 and an insulator 12. One end of the metal rod 11 is provided with a lead ring 111 for threading the warp wire, and the other end is elastically connected to the second support rod 3 and electrically connected to the second support rod 3 ( Figure 13 The elastic connection is not shown, but reference can be made to the elastic conductive component 30 in the prior art CN203715842U. The insulator 12 is provided in the middle of the metal rod 11 and has a mounting groove 121 that mates with the first support rod 2. To facilitate installation of the jumper 1, a connecting ring 113 for elastic connection is provided at the other end of the jumper 1.

[0052] In addition to the conventional technology mentioned above, the jumping bar 1 may also adopt patent technologies that the applicant has applied for and obtained authorization, such as CN217378173U, CN213357886U, CN211620751U, CN211620752U, CN108505196B, etc.

[0053] In addition to the above-mentioned preferred embodiments, the present invention has other implementation modes. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work are within the scope of protection requested by the present invention.

Claims

1. A circular loom, comprising a main machine, which comprises a frame, a chassis and an archway, the chassis being fixed to the frame, a plurality of archways being distributed and fixed vertically along the circumference of the chassis, a jumper assembly being mounted on the archway, the jumper assembly comprising a jumper, a first support rod, a second support rod and a supporting rod, the jumper being rotatably connected to the first support rod, one end of the jumper being elastically connected to the second support rod and electrically conductive with the second support rod, the first support rod, the second support rod and the supporting rod being fixed in a ring shape on the archway, the supporting rod being arranged on the outside of the jumper, characterized in that: The inner ring surface of the support rod is provided with contact teeth protruding in the direction of the jumper rod, and the contact teeth are arranged along the length direction of the support rod. A tooth groove is formed between two adjacent contact teeth in the length direction of the support rod. The jumper rod and the bottom of the tooth groove are staggered in the radial direction of the support rod. The jumper rod is forced to swing in the direction of the support rod and slide into the tooth groove along the side of the contact teeth, thereby electrically connecting the support rod and the second support rod.

2. The circular loom according to claim 1, characterized in that A guide contact surface is provided on one or both sides of the contact tooth to contact and guide the jumping rod to slide into the tooth groove. The guide contact surface extends from the direction of the jumping rod to the direction of the support rod and extends to the outside of the contact tooth.

3. The circular loom according to claim 2, characterized in that The guide contact surface extends along a straight line or an arc.

4. The circular loom according to claim 1, characterized in that The support rod is provided with a ventilation pipe, an air inlet and an air outlet connected to the ventilation pipe, the air inlet is connected to the air source, the air outlet is arranged along the length direction of the support rod, the air outlet is provided on the inner ring surface of the support rod, and the air outlet blows air to reduce the accumulation of dust on the inner ring surface of the support rod and the jump rod.

5. The circular loom according to claim 4, characterized in that The ventilation pipeline is arranged in the support rod, and the inner ring surface of the support rod is provided with a strip-shaped opening forming an air outlet, and the strip-shaped opening extends along the length direction of the support rod.

6. The circular loom according to claim 5, characterized in that The contact teeth are distributed on the upper and lower side edges of the strip-shaped opening and the inner end spacing is W. The outer diameter of the cross section of the support rod is D, and W≤0.15D.

7. The circular loom according to claim 4, characterized in that The support rod is an integrated annular structure, and the support rod has an inner hole and forms a ventilation pipeline.

8. The circular loom according to claim 4, characterized in that The support rod includes a plurality of rod bodies, each rod body is fixedly connected to at least one archway, all the rod bodies are connected to form a ring structure, and all the rod bodies have inner holes and are connected to form a ventilation pipeline.

9. The circular loom according to claim 4, characterized in that The support rod includes multiple rod bodies, each rod body is fixedly connected to at least one archway, all rod bodies are connected to form a ring structure, all rod bodies have inner holes and form ventilation pipes, the inner holes are closed at both ends of the rod body, and each rod body is provided with an air inlet and an air outlet.

10. The circular loom according to claim 4, characterized in that The outer diameter of the cross section of the support rod is D, and the diameter of the air outlet is d, where d=0.1D-0.2D.

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