Intelligent webbing machine tight knot pre-pulling device

Abstract

The application provides a kind of intelligent netting machine tight knot pre-extraction equipment, it includes pre-extraction frame, pre-extraction frame is movably installed with line storage counterweight, the top of line storage counterweight is provided with pre-storage threading ring, the top of pre-extraction frame is bent outward to form connecting plate, connecting plate is connected with rack, the top of one connecting plate is installed with input deflector roll, the top of another connecting plate is installed with output deflector roll, the pre-extraction frame in the output direction of output deflector roll is installed with fixed plate, the first buffer idler and the second buffer idler are installed on the fixed plate, the self-adapting press roll is movably installed on the fixed plate between the first buffer idler and the second buffer idler, the rack in the output direction of output idler is installed with swing arm unit.The application is tensioned once by line storage counterweight, self-adapting press roll is tensioned twice, and upper tensioning roller is tensioned three times, which is reasonable in structure and good in use effect.

Description

Technical Field

[0001] This invention relates to the field of web weaving machine technology, and in particular to a web weaving machine pre-tensioning device based on intelligent production.

[0002] Fishing nets, woven from netting ropes, can be used to create trawls, purse seines, cast nets, fixed nets, and net cages. Trawls and purse seines are heavy-duty nets used in marine fisheries and can also be used for drift net fishing, trawling, net fishing, bait fishing, and fixed fishing. They can also be woven into net cages, fish traps, and other catching materials. To ensure the tension of the netting ropes during production, multi-stage pre-storage and tensioning are often required to allow the ropes to enter the weaving machine smoothly. Traditional net weaving machines mostly have only one tensioning zone; once the tension roller reaches its tension limit, the rope cannot be tensioned, resulting in rope breakage or uneven mesh weaving, which significantly impacts the production of the net weaving machine. Summary of the Invention

[0003] The purpose of this invention is to provide a pre-pulling device for tight bonding of a web weaving machine with a reasonable structure and good performance.

[0004] To achieve the above objectives, the technical solution provided by this invention is as follows: a pre-drawing device for a smart web weaving machine, comprising a pre-drawing frame, a yarn storage counterweight movably installed inside the pre-drawing frame, a pre-storage threading ring on the top of the yarn storage counterweight, a connecting plate formed by bending the top of the pre-drawing frame outward, the connecting plate being connected to the machine frame, an input steering roller installed on the top of one connecting plate, an output steering roller installed on the top of the other connecting plate, a fixed plate installed on the pre-drawing frame in the output direction of the output steering roller, a first buffer roller installed at one end of the fixed plate, a second buffer roller installed at the other end of the fixed plate, an adaptive pressure roller movably installed on the fixed plate between the first and second buffer rollers, and a swing arm unit installed on the machine frame in the output direction of the second buffer roller.

[0005] The swing arm unit includes a pre-drawing swing arm, an input roller, and a lower tension roller. There are two pre-drawing swing arms, and the bottom of the pre-drawing swing arms is hinged to the pre-drawing seat through an arm shaft. The lower tension roller is installed between the lower parts of the two pre-drawing swing arms, and the upper tension roller is installed between the tops of the two pre-drawing swing arms. A tension spring plate is connected between the upper parts of the two pre-drawing swing arms, and a tension spring is connected to the tension spring and connected to the top of the pressure roller frame. A pressure roller frame is provided on the pre-drawing seat in the output direction of the pre-drawing swing arm. An input roller is installed in the middle of the pressure roller frame. A horizontal support arm is fixed on the pressure roller frame in the output direction of the input roller. An output roller is installed at the outer end of the horizontal support arm (205). A warp pressure roller is installed between the output roller and the input roller. A cantilever is fixed on the pressure roller frame above the warp pressure roller. A vertically downward pressure roller arm is fixed at the outer end of the cantilever. A vertically downward pressure roller groove is provided on the pressure roller arm. The end of the warp pressure roller is located in the pressure roller groove. A first sensor is provided on the pressure roller arm at the top of the pressure roller groove.

[0006] The fixed plates are two pieces that are vertically fixed on the pre-drawing frame. The fixed plates between the first buffer roller and the second buffer roller are provided with adaptive buffer grooves along the vertical direction, and the end of the adaptive pressure roller is movably embedded in the corresponding adaptive buffer groove.

[0007] The pre-drawing frame has its two side walls bent relative to each other to form lateral limiting edges. The wire storage counterweight is limited on both sides by the corresponding lateral limiting edges. The wire rope passes around the input steering roller, passes down through the pre-stored wire loop, and then passes around the output steering roller for output. A third sensor is installed in the pre-drawing frame below.

[0008] The input steering roller and the output steering roller are both fitted with limit sleeves. There are two limit sleeves, which are locked by corresponding bolts. The outer peripheral surfaces of the two limit sleeves at opposite ends gradually shrink to form a limit surface.

[0009] A limiting contact arm is fixed on the pressure roller frame on one side of the pre-drawing swing arm. The outer end of the limiting contact arm contacts the upper part of the pre-drawing swing arm, and a second sensor is provided at the outer end of the limiting contact arm.

[0010] This invention uses a counterweight for initial tensioning, an adaptive pressure roller for secondary tensioning, and an upper tensioning roller for tertiary tensioning. Finally, the warp roller presses the warp yarn before outputting it. Simultaneously, two sensors are used for limit detection. While ensuring the tension of the net rope, the extreme position of the net rope is detected, which can effectively prevent rope breakage, excessive looseness or tightness, thus ensuring smooth rope feeding of the net weaving machine. Its structure is reasonable and its performance is good. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0012] Figure 2 This is a side view of the installation of the wire storage counterweight according to the present invention.

[0013] Figure 3 This is a top view of the cable counterweight installation according to the present invention. Detailed Implementation

[0014] The present invention will be further described below with reference to all accompanying drawings. A preferred embodiment of the present invention is as follows: (See attached drawings) Figure 1 To be continued Figure 3The intelligent weaving machine pre-pulling device of the present invention includes a pre-pulling frame 101, a thread storage counterweight 105 is movably installed in the pre-pulling frame 101, the two side walls of the pre-pulling frame 101 are bent relative to each other to form lateral limiting edges 103, the two sides of the thread storage counterweight 105 are limited by the corresponding lateral limiting edges 103, a third sensor 108 is installed in the lower pre-pulling frame 101; a pre-storage threading ring 106 is provided on the top of the thread storage counterweight 105, the top of the pre-pulling frame 101 is bent outward to form a connecting plate 102, the connecting plate 102 is connected to the frame, one of the connecting plates 102 is equipped with an input steering roller 104 on the top, the other connecting plate 102 is equipped with an output steering roller 107 on the top, both the input steering roller 104 and the output steering roller 107 are fitted with limiting sleeves 109, there are two limiting sleeves 109, which are locked by corresponding bolts, and the outer peripheral surfaces of the two limiting sleeves 109 at opposite ends gradually shrink to form limiting surfaces. A fixing plate 301 is installed on the pre-draw frame 101 in the output direction of the output steering roller 107. The fixing plate 301 consists of two pieces that are vertically fixed on the pre-draw frame 101. An adaptive buffer groove 305 is provided on the fixing plate 301 between the first buffer roller 302 and the second buffer roller 303 in the vertical direction. The first buffer roller 302 is installed at one end of the fixing plate 301, and the second buffer roller 303 is installed at the other end of the fixing plate 301. An adaptive pressure roller 304 is movably installed on the fixing plate 301 between the first buffer roller 302 and the second buffer roller 303. The end of the adaptive pressure roller 304 is movably embedded in the corresponding adaptive buffer groove 305. A swing arm unit is installed on the frame in the output direction of the second buffer roller 303.

[0015] The swing arm unit includes a pre-drawing swing arm 202, an input roller 204, and a lower tension roller 209. There are two pre-drawing swing arms 202, with their bottoms hinged to a pre-drawing seat 201 via arm shafts. The lower tension roller 209 is installed between the lower parts of the two pre-drawing swing arms 202, and an upper tension roller 208 is installed between the tops of the two pre-drawing swing arms 202. A tension spring plate connects the upper parts of the two pre-drawing swing arms 202, and a tension spring 210 is connected to the tension spring plate and to the top of a pressure roller frame 203. A pressure roller frame 203 is provided on the pre-drawing seat 201 in the output direction of the pre-drawing swing arm 202. A limit contact arm is fixed on the pressure roller frame 203 on one side of the pre-drawing swing arm 202, and the outer end of the limit contact arm is connected to the pre-drawing swing arm. The upper part of the arm 202 contacts and limits the contact arm. The outer end of the arm is equipped with a second sensor 214. The middle part of the pressure roller frame 203 is equipped with an input roller 204. A horizontal support arm 205 is fixed on the pressure roller frame 203 in the output direction of the input roller 204. An output roller 206 is installed on the outer end of the horizontal support arm 205. A warp roller 207 is installed between the output roller 206 and the input roller 204. A cantilever is fixed on the pressure roller frame 203 above the warp roller 207. A vertically downward pressure roller arm 211 is fixed on the outer end of the cantilever. A vertically downward pressure roller groove 212 is provided on the pressure roller arm 211. The end of the warp roller 207 is located in the pressure roller groove 212. A first sensor 213 is provided on the pressure roller arm 211 at the top of the pressure roller groove 212.

[0016] All sensors are controlled by an external system. The net rope passes around the input steering roller, goes down through the pre-stored threading ring, passes around the output steering roller, outputs to the first buffer roller, then goes down around the adaptive pressure roller, goes up around the second buffer roller, then passes around the upper tension roller, goes down back around the lower tension roller, passes through the top of the input roller and the output roller, and then outputs.

[0017] When the feed speed of the subsequent process is slower than the feed speed of the previous process, the tension of the net rope decreases. At this time, the counterweight for storing the yarn descends under its own weight, and the net rope in the pre-stored threading ring located in the pre-draw seat descends, so that the tension of the net rope remains consistent (tension state). When the counterweight for storing the yarn descends to the limit (contact with the first sensor), the third sensor connects to the external system, alarms, and at the same time controls the feed speed of the previous process to be reduced through the external system, thereby ensuring the tension of the yarn entering the weaving machine. Each guide roller is equipped with two limit sleeves (all rollers can be installed as needed). The limit sleeves limit the two sides of the net rope to prevent the net rope from coming off the guide roller. At the same time, the distance between the limit sleeves can be adjusted as needed to limit net ropes of different diameters. The lateral limit edge is used to limit the two sides of the counterweight for storing the yarn. The adaptive pressure roller and the warp pressure roller press on the net rope under their own weight, and this section of the net rope forms an adaptive expansion and contraction zone.

[0018] The tension spring provides tension to the pre-pulling swing arm, pulling the upper tension roller's mesh rope towards the pressure roller frame, thus reserving a certain tension zone for the mesh rope. When the pulling speed of the subsequent process is greater than the releasing speed of the previous process, the mesh rope will pull the upper part of the pre-pulling swing arm forward, stretching the tension spring. When the pre-pulling swing arm reaches its maximum distance (the tension spring's length limit), the mesh rope will drive the warp pressure roller upward. When the warp pressure roller touches the first sensor, the first sensor sends a signal to the external system, which controls the previous process to increase the releasing speed. Conversely, when the previous process's releasing speed is greater than the subsequent process's, the tension spring loses its tension, and the pre-pulling swing arm moves towards the limit contact arm. When the pre-pulling swing arm contacts the second sensor, it indicates that the releasing speed of the mesh rope is too fast. The second sensor sends a signal to the external system, which controls the previous process to reduce the releasing speed. This method prevents the mesh rope from breaking due to excessive pulling force in the subsequent process. When used in conjunction with the external system, it can achieve automatic tensioning during pre-pulling.

[0019] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Therefore, any changes made in accordance with the shape and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. A pre-tensioning device for an intelligent web weaving machine, characterized in that: It includes a pre-drawing frame (101), a wire storage counterweight (105) is movably installed inside the pre-drawing frame (101), a pre-storage wire threading ring (106) is provided on the top of the wire storage counterweight (105), the top of the pre-drawing frame (101) is bent outward to form a connecting plate (102), the connecting plate (102) is connected to the frame, one of the connecting plates (102) is equipped with an input steering roller (104) on the top, and the other connecting plate (102) is equipped with an output steering roller (107) on the top. 107) A fixed plate (301) is installed on the pre-draw frame (101) in the output direction. A first buffer roller (302) is installed on one end of the fixed plate (301), and a second buffer roller (303) is installed on the other end of the fixed plate (301). An adaptive pressure roller (304) is movably installed on the fixed plate (301) between the first buffer roller (302) and the second buffer roller (303). A swing arm unit is installed on the frame in the output direction of the second buffer roller (303). The swing arm unit includes a pre-drawing swing arm (202), an input roller (204), and a lower tension roller (209). There are two pre-drawing swing arms (202). The bottom of each pre-drawing swing arm (202) is hinged to a pre-drawing seat (201) via an arm shaft. The lower tension roller (209) is installed between the lower parts of the two pre-drawing swing arms (202), and the upper tension roller (208) is installed between the tops of the two pre-drawing swing arms (202). A tension spring plate is connected between the upper parts of the two pre-drawing swing arms (202), and a tension spring (210) is connected to the tension spring plate. The tension spring (210) is connected to the top of the pressure roller frame (203). A pressure roller frame (203) is provided on the pre-drawing seat (201) in the output direction of the pre-drawing swing arm (202). An input roller (204) is installed in the middle. A horizontal support arm (205) is fixed on the roller frame (203) in the output direction of the input roller (204). An output roller (206) is installed at the outer end of the horizontal support arm (205). A warp roller (207) is installed between the output roller (206) and the input roller (204). A cantilever is fixed on the roller frame (203) above the warp roller (207). A vertically downward roller arm (211) is fixed at the outer end of the cantilever. A vertically downward roller groove (212) is provided on the roller arm (211). The end of the warp roller (207) is located in the roller groove (212). A first sensor (213) is provided on the roller arm (211) at the top of the roller groove (212).

2. The intelligent mesh weaving machine pre-tensioning device according to claim 1, characterized in that: The fixing plate (301) consists of two pieces that are vertically fixed on the pre-drawing frame (101). The fixing plate (301) between the first buffer roller (302) and the second buffer roller (303) is provided with an adaptive buffer groove (305) along the vertical direction. The end of the adaptive pressure roller (304) is movably embedded in the corresponding adaptive buffer groove (305).

3. The intelligent mesh weaving machine pre-tensioning device according to claim 1, characterized in that: The two side walls of the pre-drawing frame (101) are bent to form lateral limiting edges (103). The wire storage counterweight (105) is limited on both sides by the corresponding lateral limiting edges (103). The net rope passes around the input steering roller (104), passes down through the pre-stored wire loop (106), and then passes around the output steering roller (107) for output. A third sensor (108) is installed in the pre-drawing frame (101) below.

4. The intelligent mesh weaving machine pre-tensioning device according to claim 1, characterized in that: Limit sleeves (109) are fitted on both the input steering roller (104) and the output steering roller (107). There are two limit sleeves (109), which are locked by corresponding bolts. The outer peripheral surfaces of the two limit sleeves (109) gradually shrink to form a limiting surface.

5. The intelligent mesh weaving machine pre-tensioning device according to claim 1, characterized in that: A limiting contact arm is fixed on the pressure roller frame (203) on one side of the pre-drawing swing arm (202). The outer end of the limiting contact arm contacts the upper part of the pre-drawing swing arm (202), and a second sensor (214) is provided on the outer end of the limiting contact arm.

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